JB/T 10231.20-2002 Tool product testing methods Part 20: Rectangular spline broaches
Some standard content:
[CS25.100.25
Machinery Industry Standard of the People's Republic of China
JB/T10231.20—2002
Tool product inspection methods
Part 20: Rectangular spline broaches
Taolin inspection methods
Part 20: Straight spline broaches2002-07-16 Issued
2002-12-01. Implementation
Issued by the State Economic and Trade Commission of the People's Republic of China
【Scope
2 Normative reference documents
3 Inspection basis.
4 Inspection force method detector true value...
Table inquiry consumption
JE/T10231.20——2002
Change the tooth skin and its ruler! The same cutting tooth outer diameter, the outer circle self-diameter consistency, or the intersection of the taper 43
spline zinc width
calibration special teeth and the same precision initial and rear guide and other parts of the outer circle of the radial rigidity of the spline teeth and the total error.
chain tooth two-way face center plane 9
reverse blade horizontal setting white inside flower tooth two sides of the parallelism broach spline side along the longitudinal parallel to the broach reference auxiliary line and then rough cutting tooth, precision cutting tooth outer diameter
push adjacent cutting inner rise surplus
leading part 、Rear external drawing
I shape front guide part, rear guide part chain width
Card guide surface material platform garden jump society
Control Ting example angle tooth angle surface to tension benzene leakage shaft velvet distance 4.16 tension can be judged tooth surface to flower chain tooth center flat front symmetry 4.17
4.18 front angle
Chip groove size
Material science and breakage
Marking and package table
This standard is prepared by the National Machinery Industry Federation Price Association Super Product Front
This standard is prepared by Harbin Yingdi·Qi Factory Zeng Wu Drafting, this standard main section of the people: Xiaoxian, Wang Jiaxiang, Wang Yalan, Chen Ketian, Jiang Qiang. JR/T10231.20—2002
1 Scope
Testing methods for tool products
Part 20: Rectangular spline broaches
JB/T10231.20—2002
This part specifies the testing methods and testing instruments for the testing of rectangular spline broaches. These methods are not exclusive. This part is for inspection of rectangular spline broaches produced by JR/TKK2 and BT5613. 2 Normative references
The following documents are the source of this part of T10231 and become the series of this part. For all dated references, all subsequent revisions (excluding errata or revised editions) are not applicable to this part. For all documents not dated, the latest versions of these documents shall apply to this part. B13-: Diameter centering spline broach
B997·1999 Technical conditions for rectangular spline chains (ncg1N3940B1023E.1-2001 B ... Standards and samples
4 Testing methods and testing instruments
41 Appearance
Appearance testing shall be in accordance with the provisions of JB/T10231.1-2001, Section 4. 4.2 Roughness Www.bzxZ.net
Surface roughness testing shall be in accordance with the provisions of JB/T10231.1-2001, Section 5. 4.3 Calibration of the outer diameter of the gear and the precision cut gear with the same size, and the consistency of the outer diameter: or calibration of the gear taper 4.3.1 Selection method
Select the tool according to the control diameter and tolerance: Before measuring, use the basic size of the gear to adjust the tool with the saw block, and determine its zero position. When measuring, the visual axis should be straight, and the axis should be measured with the gear. Note: In the relative comparison measurement, the intersection of the deviation value displayed by the lever scale or the sub-scale under the lever and the basic size is the actual outer diameter. Size. According to the actual average difference between the diameters of each pass, determine the consistency of each flash diameter. Calibrate the actual diameter of the outer diameter of the inner diameter with the smaller than the forbidden table 432 Testing equipment
on the bar caliper, the quarter-level 7-meter, 4-level plate block. 4.4 Width of the tooth
44.1 Testing method
Use the gauge block combination to measure the width of the "center", calibrate it, and measure the actual width. 44.2 Testing equipment
Zero-level micrometer, lever caliper, 4-level marker 4.5 Calibrate the radial circular motion of the outer circle of the tooth and the cutting tooth of the same size and the rear guide and other parts 45.1 Testing method
JB/T10231.20—2002
Measurement of the outer circle of the tool
Work team:
Pure Figure 2, install the broach on the light The circular probe of the measuring table is respectively in vertical contact with the controlled tooth edge and the rear surface, the broach rotates one circle, and the reading of the indicator is read at each position. The difference between the maximum value and the minimum value is the diameter of the outer circle of the measured part. The diameter runout of the outer circle of other parts can be detected by an indicator table, the method is the same as above①
4.52 Testing equipment
Optical dividing head or circular measuring instrument, graduation value 0.01mm or 0.001mm indicator table, 4.6 Spline tooth equal division error
4.6.1 Testing method
Install the broach on the optical dividing head: the double belt parallelometer turning platform, the probe of the measuring table is in contact with the calibration tooth chain reading, adjust the table, set the needle position, and position the table frame when returning, as shown in Figure 3. Then, according to the number of teeth on the chain, the equal division degree of 1 is taught to rotate rapidly, so that the other adjacent blade belt is reversed, and the secret movement is used to make the probe chain touch the belt, and the measured readings are recorded. In turn, the pull back load bag is used to obtain the group readings, which are good T, =,,,,6. "The maximum equal division cumulative error is collected: when the measured value 3 is the largest between the two absolute values: when the side values 5 are of different signs, take the sum of the positive and negative absolute values. Fixed skin when the force
4.6.2 Testing equipment
Optical dividing head, the division value is 0.001mm indicator: 4. The symmetry of the two sides of the spline teeth facing the center plane JB/T10231.20—2002
4.7.1 Testing method
Install the broach on both sides of the optical dividing head Select a pair of teeth to be calibrated, place the key side near the outer circle with a flat dial, see Figure 4-1, and place the measuring head of the measuring head on the key side near the outer circle. Set the position of the measuring head and take the measuring head reading. Set the starting point of the dividing head reading, turn the dividing head to rotate the broach 180 degrees, and then place the broach on the other side of the same key tooth, so that the measuring head touches the other side of the same key tooth near the outer circle, and read the measured value, see Figure 4-2. Take the absolute value of the difference between the two readings, that is, 6 = 1 6, -, 1,
Figure 4-1
4.7.2 Testing equipment
Optical measuring head, indicating dial with graduation value of 0.001mm 4.8 Parallelism of two sides of spline teeth on broaching curved surface 4.8.1 Testing method
Figure 4-2
Install the broach on the optical measuring head with two centers at the same time, let the selected tooth make the key side edge belt touch the measuring dial probe, and rotate the measuring head, stop it so that the edge belt is parallel to the measuring head, see Figure 5-1: Determine the starting point, rotate the measuring head: rotate the broach 180": then move the dial to the other side of the broach, make the measuring dial probe touch the other small belt of the same collar, and move the measuring dial on the platform, see Figure 5-2, and take the difference between the maximum value and the minimum value read on the visual dial. Figure 5-1
Circumference 5-2
JB/T10231.20—2002
4.8.2 Testing equipment
Optical splitter, indexing value of 0.01mm 4.9 Parallelism of the side face of the broach spline along the longitudinal direction to the reference axis of the broach 4.9.1 Testing method
See doctor 6. Install the broach between the two tips of the optical splitter, and use the indicator card to level the key edges of any two symmetrical chains. Keep the broach immobile, move the broach stand to the cabinet, so that the front end of the probe can completely contact the chain cutting edge, and make the probe (tip probe) touch the two symmetrical key belts respectively, and take 1/2 of the value of the two similar surfaces. According to the standard
4.9.2 Testing equipment
Optical dividing head: The value of the index is 0.011A. 41 Rough cutting teeth, glass cutting teeth outer diameter
4.10.1 Testing method
Use a zero-level micrometer to pull the blade to measure each tooth, and the measured value is the actual outer diameter of each tooth. 4.10.2 Testing equipment
Zero-level micrometer.
4.11 Tooth lift difference of adjacent cutting teeth
4.11.1 Inspection method
Use a grade micrometer to measure the outer diameter of the cutting gear. The difference between the actual outer diameters of adjacent teeth is the actual sound rise. The difference between the standard tooth rise and the specified tooth rise is the difference between the openings of adjacent cutting machines. 4.11.2 Inspection equipment
Zero-grade micrometer,
4.12 Front and rear outer diameters
4.12.1 Inspection method
Use a micrometer to directly measure the front and rear outer diameters: the measured value is the actual outer diameter of the front and rear. 4.12.2 Inspection tools
Decimeter
4.13 Splined leading and trailing key
4.13.1 Inspection method
Use the lower scale to measure the leading and trailing key widths of the motherboard. The measured value is the actual size of the key width. 4.13.2 Inspection tools
Use the ruler.
4,{4 Card standard rate of material to be drawn on the surface of the circle JB/I10231.20—2002
4.141 Inspection method
Install the tool on the two tops of the optical indexing or circular runout inspection instrument, install the indicator on the magnetic square table, make the probe touch the shoe surface, and the line measured by the sight meter should be vertical, see Figure?. Rotate the measuring head to obtain the difference between the maximum and minimum readings. Figure 7
4.14.2 Testing equipment
Optical dividing head or measuring and checking instrument, indicating table with a graduation value of 0.01Duu 4.15 Distance between the angle surface of the broach and the reference axis of the broach 4.161 Testing method
Method 1: Use T-meter to directly measure the two parallel dimensions: see Figure 8-1, M=M2. 2: When the two sides of the teeth are not parallel, the puller is clamped between the two tips of the dividing head: the micrometer is used to measure the outer diameter of the angle step, and the small dial is used to set the value of 8 at the tooth edge, see Figure 8-2, and the hot knife is condensed, and the measuring table is moved to make the measuring head close to the compared mountain chain, and the measuring head is adjusted while moving the table frame to make the tooth scratch surface level with the instrument half table. At this time, the table reading remains unchanged. Its value is,, see 8-3, through the calculation of the actual value, namely: M = 2 - (,,) Figure 8 1 || tt || 4.15.2 Inspection equipment || tt || Figure 8-2 || tt || can be divided into two centers, the width of the head, the accuracy value is 0.01m1m indicator. 4.1 The tooth angle of the broach is symmetrical to the center of the chain. 4.16.1 Inspection method || tt || Figure 8-3 || tt || The force is installed between the two ends of the optical dividing head, and the symmetric teeth are selected. The radius of the circle with the least belt on the two tooth keys is respectively touched with the measuring head of the measuring table. Rotate the dividing head to make the two sides parallel to the center plane of the chain teeth, that is, see Figure 1: adjust and determine the starting angle of the dividing head, rotate the dividing head clockwise (for the chain angle), and cut the center line of the shape in Figure 2. Move the measuring head to the inner angle surface of the tooth to be tested, and place the measuring contact against the middle position of the surface. The measuring meter reading is limit. Then, rotate the measuring head 180 degrees clockwise, ~2, so that the center of the tooth to be tested is at position D0B. Move the measuring head to the other side of the tool so that its measuring meter contact is at the non-angle surface of the tooth to be tested, and the measuring meter reading is center 1. The difference between the two readings is 5
JB/10231.20—2002
. The one with the largest value is obtained by this operation. In actual detection: when the first tooth is adjusted to the 0A position, it can be rotated 3 degrees in a universal direction (8 is the equally divided angle of the chamfered tooth on the circumference of the ring), and then measured by the above method. At the center position, the value of each tooth can be measured in turn, that is, at the same time, the value of each tooth can be measured in turn at the door position, that is, the largest value of the difference between the maximum and minimum values of the measuring numbers on the two inner sides is taken. Figure 9-1
4.16.2 Detection tool
Optical dividing head, indicating dial with a graduation value of center mm. 4.17 Side obstruction angle
4.17.1 Detection method
Figure 9-2
Install the force gauge in the optical indexing reading room, calibrate the section symmetry, and use a flat dial to level the key edge near the outer circle, see Figure 91,
Put the beating indicator on the dial stand, and make the dial head touch the side surface of the tooth to be measured, see Figure 10. The longitudinal movement dimension of the measuring plate frame of the length
civil joint (determined by the measuring speed), the height difference between the ruler and the measuring scale is given, and the side clearance angle is calculated by the following formula: tana=bfd
4.17.2 Measuring instruments
Optical graduation: bar indicator with a scale of .)mm, gauge block, 4.18 Rake angle
4.18.1 Inspection method
To inspect the rake angle of the calibration tooth and the precision cutting tooth with the same size group, a universal ruler can be used to directly measure and read the actual angle value. To inspect the cutting tooth rake angle, due to the influence of the tooth lift, the inspection tool needs to be corrected. The measurement method is shown in Figure 11. Figure 11
JB/T10231.20—2002
The standard angle ruler is used to measure the outer diameter of the broach. The ruler should be adjusted to make the inflamed end of the ruler contact with the cutting edge without any gap. The actual value of the tooth lift angle is calculated by the following formula: tan2=HP
The actual front angle of the adjacent teeth on one side can be calculated by the following formula: tan2=HP
The new value of the tooth lift angle
Note: The original ruler width was 1.5mm. In order to improve the cutting accuracy, the ruler width was changed to 0.3mm.5mm
4.18.2 Testing equipment
Universal angle ruler.
4.19 Back Angle
4.19.1 Inspection Method
Inspect the back angle of the precision cut teeth between the calibration teeth and their sizes: it can be directly measured by the degree: read the actual angle value. When measuring the front inner angle, pay attention to the shadow caused by the tooth lift base, and the measured reading value needs to be corrected. The positive and negative values of the quick stop value are related to the direction of the broach and the universal angle ruler
See Figure 12. When the universal ruler is close to the outer diameter of the broach, adjust the mark, and the flat end of the tooth ruler is also close to the cutter and the plate with enough clearance, and read the reading α of the dial. The correction value of the tooth lift measurement, that is, the step lift element, is calculated according to the following formula; taui=H/P
The tooth lift pad of the adjacent teeth on the broaching surface:
The distance between the teeth.
The actual back angle α=measured value α. To improve the accuracy of the flow, in order to improve the micro-1 pass, the ruler is changed to a flat end step type, and the blade width is 0.3mm--0.5μm. 4.19.2 Detector only
Universal fluorine ruler:
4.20 Chip groove size
4.201 Detection method
Use chip groove fiberboard optical tracer station measurement area,
JB/I 10231.20-.2002
4.20.2 Inspection equipment
Wear plate:
4.21 Materials and hard seats
Materials and safety measurement BT1023-2001 Chapter 4.22 Marking and packaging
JB/I 231.1--2(H Chapters 13 and 14.161 Inspection method
Method 1: Use T-meter to directly measure the two parallel dimensions: see Figure 8-1, M=M2. Secretion 2: When the two sides of the gear are not parallel, pull the clamp on the dividing head between the two tips: tell the same micrometer to measure the outer diameter of the example angle step 4, and use the small dial to set the value 8 at the tooth edge band, see Figure 8-2, and move the measuring table to make the measuring head close to the compared mountain chain, adjust the dividing head and move the table frame until the tooth scratch surface is level with the instrument half, at this time, the dial reading remains unchanged. Its value is,, see 8-3, through the calculation of the actual value, namely: M = 2 - (,,) Figure 8 1 || tt || 4.15.2 Inspection equipment || tt || Figure 8-2 || tt || can be divided into two centers, the width of the head, the accuracy value is 0.01m1m indicator. 4.1 The tooth angle of the broach is symmetrical to the center of the chain. 4.16.1 Inspection method || tt || Figure 8-3 || tt || The force is installed between the two ends of the optical dividing head, and the symmetric teeth are selected. The radius of the circle with the least belt on the two tooth keys is respectively touched with the measuring head of the measuring table. Rotate the dividing head to make the two sides parallel to the center plane of the chain teeth, that is, see Figure 1: adjust and determine the starting angle of the dividing head, rotate the dividing head clockwise (for the chain angle), and cut the center line of the shape in Figure 2. Move the measuring head to the inner angle surface of the tooth to be tested, and place the measuring contact against the middle position of the surface. The measuring meter reading is limit. Then, rotate the measuring head 180 degrees clockwise, ~2, so that the center of the tooth to be tested is at position D0B. Move the measuring head to the other side of the tool so that its measuring meter contact is at the non-angle surface of the tooth to be tested, and the measuring meter reading is center 1. The difference between the two measured values is 5
JB/10231.20—2002
. In this way, the center of the key tooth is parallel and the connection value is the largest. In actual detection: when the first tooth is adjusted to the 0A position, it can be rotated by 3 degrees in a universal direction (8 is the equally divided angle of the chamfered tooth on the circumference of the case), and then measured by the above method. At the center position, the measured values of each tooth can be measured in turn, that is, at the same time, the measured values of each tooth can be measured in turn at the door position, that is, the largest of the differences between the maximum and minimum values of the measured values on the two inner sides is taken. Figure 9-1
4.16.2 Detection tool
Optical dividing head, indicating dial with a graduation value of center mm. 4.17 Side obstruction angle
4.17.1 Detection method
Figure 9-2
Install the force gauge in the optical indexing reading room, calibrate the section symmetry, and use a flat dial to level the key edge near the outer circle, see Figure 91,
Put the beating indicator on the dial stand, and make the dial head touch the side surface of the tooth to be measured, see Figure 10. The length of the measuring plate frame of the long joint is the longitudinal movement dimension (determined by the measuring speed), the height difference between the ruler and the measuring scale is given, and the side clearance angle is calculated by the following formula: tana=bfd
4.17.2 Measuring instruments
Optical graduation: bar indicator with a scale of .)mm, gauge block, 4.18 Rake angle
4.18.1 Inspection method
To inspect the rake angle of the calibration tooth and the precision cutting tooth with the same size group, a universal ruler can be used to directly measure and read the actual angle value. To inspect the cutting tooth rake angle, due to the influence of the tooth lift, the inspection tool needs to be corrected. The measurement method is shown in Figure 11. Figure 11
JB/T10231.20—2002
The standard angle ruler is used to measure the outer diameter of the broach. The ruler should be adjusted to make the end of the ruler contact with the cutting edge without any gap. The actual value of the tooth lift angle is calculated by the following formula: tan2=HP
The actual front angle of the adjacent teeth on one side can be calculated by the following formula: tan2=HP
The new value of the tooth lift angle
Note: The original ruler width was 1.5mm. In order to improve the cutting accuracy, the ruler width was changed to 0.3mm.5mm
4.18.2 Testing equipment
Universal angle ruler.
4.19 Back Angle
4.19.1 Inspection Method
Inspect the back angle of the precision cut teeth between the calibration teeth and their sizes: it can be directly measured by the degree: read the actual angle value. When measuring the front inner angle, pay attention to the shadow caused by the tooth lift base, and the measured reading value needs to be corrected. The positive and negative values of the quick stop value are related to the direction of the broach and the universal angle ruler
See Figure 12. When the universal ruler is close to the outer diameter of the broach, adjust the mark, and the flat end of the tooth ruler is also close to the cutter and the plate with enough clearance, and read the reading α of the dial. The correction value of the tooth lift measurement, that is, the step lift element, is calculated according to the following formula; taui=H/P
The tooth lift pad of the adjacent teeth on the broaching surface:
The distance between the teeth.
The actual back angle α=measured value α. To improve the accuracy of the flow, in order to improve the micro-1 pass, the ruler is changed to a flat end step type, and the blade width is 0.3mm--0.5μm. 4.19.2 Detector only
Universal fluorine ruler:
4.20 Chip groove size
4.201 Detection method
Use chip groove fiberboard optical tracer station measurement area,
JB/I 10231.20-.2002
4.20.2 Inspection equipment
Wear plate:
4.21 Materials and hard seats
Materials and safety measurement BT1023-2001 Chapter 4.22 Marking and packaging
JB/I 231.1--2(H Chapters 13 and 14.161 Inspection method
Method 1: Use T-meter to directly measure the two parallel dimensions: see Figure 8-1, M=M2. Secretion 2: When the two sides of the gear are not parallel, pull the clamp on the dividing head between the two tips: tell the same micrometer to measure the outer diameter of the example angle step 4, and use the small dial to set the value 8 at the tooth edge band, see Figure 8-2, and move the measuring table to make the measuring head close to the compared mountain chain, adjust the dividing head and move the table frame until the tooth scratch surface is level with the instrument half, at this time, the dial reading remains unchanged. Its value is,, see 8-3, through the calculation of the actual value, namely: M = 2 - (,,) Figure 8 1 || tt || 4.15.2 Inspection equipment || tt || Figure 8-2 || tt || can be divided into two centers, the width of the head, the accuracy value is 0.01m1m indicator. 4.1 The tooth angle of the broach is symmetrical to the center of the chain. 4.16.1 Inspection method || tt || Figure 8-3 || tt || The force is installed between the two ends of the optical dividing head, and the symmetric teeth are selected. The radius of the circle with the least belt on the two tooth keys is respectively touched with the measuring head of the measuring table. Rotate the dividing head to make the two sides parallel to the center plane of the chain teeth, that is, see Figure 1: adjust and determine the starting angle of the dividing head, rotate the dividing head clockwise (for the chain angle), and cut the center line of the shape in Figure 2. Move the measuring head to the inner angle surface of the tooth to be tested, and place the measuring contact against the middle position of the surface. The measuring meter reading is limit. Then, rotate the measuring head 180 degrees clockwise, ~2, so that the center of the tooth to be tested is at position D0B. Move the measuring head to the other side of the tool so that its measuring meter contact is at the non-angle surface of the tooth to be tested, and the measuring meter reading is center 1. The difference between the two measured values is 5
JB/10231.20—2002
. In this way, the center of the key tooth is parallel and the connection value is the largest. In actual detection: when the first tooth is adjusted to the 0A position, it can be rotated by 3 degrees in a universal direction (8 is the equally divided angle of the chamfered tooth on the circumference of the case), and then measured by the above method. At the center position, the measured values of each tooth can be measured in turn, that is, at the same time, the measured values of each tooth can be measured in turn at the door position, that is, the largest of the differences between the maximum and minimum values of the measured values on the two inner sides is taken. Figure 9-1
4.16.2 Detection tool
Optical dividing head, indicating dial with a graduation value of center mm. 4.17 Side obstruction angle
4.17.1 Detection method
Figure 9-2
Install the force gauge in the optical indexing reading room, calibrate the section symmetry, and use a flat dial to level the key edge near the outer circle, see Figure 91,
Put the beating indicator on the dial stand, and make the dial head touch the side surface of the tooth to be measured, see Figure 10. The length of the measuring plate frame of the long joint is the longitudinal movement dimension (determined by the measuring speed), the height difference between the ruler and the measuring scale is given, and the side clearance angle is calculated by the following formula: tana=bfd
4.17.2 Measuring instruments
Optical graduation: bar indicator with a scale of .)mm, gauge block, 4.18 Rake angle
4.18.1 Inspection method
To inspect the rake angle of the calibration tooth and the precision cutting tooth with the same size group, a universal ruler can be used to directly measure and read the actual angle value. To inspect the cutting tooth rake angle, due to the influence of the tooth lift, the inspection tool needs to be corrected. The measurement method is shown in Figure 11. Figure 11
JB/T10231.20—2002
The standard angle ruler is used to measure the outer diameter of the broach. The ruler should be adjusted to make the end of the ruler contact with the cutting edge without any gap. The actual value of the tooth lift angle is calculated by the following formula: tan2=HP
The actual front angle of the adjacent teeth on one side can be calculated by the following formula: tan2=HP
The new value of the tooth lift angle
Note: The original ruler width was 1.5mm. In order to improve the cutting accuracy, the ruler width was changed to 0.3mm.5mm
4.18.2 Testing equipment
Universal angle ruler.
4.19 Back Angle
4.19.1 Inspection Method
Inspect the back angle of the precision cut teeth between the calibration teeth and their sizes: it can be directly measured by the degree: read the actual angle value. When measuring the front inner angle, pay attention to the shadow caused by the tooth lift base, and the measured reading value needs to be corrected. The positive and negative values of the quick stop value are related to the direction of the broach and the universal angle ruler
See Figure 12. When the universal ruler is close to the outer diameter of the broach, adjust the mark, and the flat end of the tooth ruler is also close to the cutter and the plate with enough clearance, and read the reading α of the dial. The correction value of the tooth lift measurement, that is, the step lift element, is calculated according to the following formula; taui=H/P
The tooth lift pad of the adjacent teeth on the broaching surface:
The distance between the teeth.
The actual back angle α=measured value α. To improve the accuracy of the flow, in order to improve the micro-1 pass, the ruler is changed to a flat end step type, and the blade width is 0.3mm--0.5μm. 4.19.2 Detector only
Universal fluorine ruler:
4.20 Chip groove size
4.201 Detection method
Use chip groove fiberboard optical tracer station measurement area,
JB/I 10231.20-.2002
4.20.2 Inspection equipment
Wear plate:
4.21 Materials and hard seats
Materials and safety measurement BT1023-2001 Chapter 4.22 Marking and packaging
JB/I 231.1--2(H Chapters 13 and 14.20—2002
The standard angle ruler is used to measure the outer diameter of the broach, so that the inflamed end of the ruler can be in contact with the cutting blade without any continuity. The actual value of the tooth lift angle is calculated by the following formula: tan2=HP
The actual front angle of the adjacent teeth on one side can be increased by one broach
The new value of the tooth lift angle
Note: The original ruler width was 1.5mm, and in order to improve the cutting accuracy, the ruler width was changed to 0.3muw.5mm
4.18.2 Testing equipment
Universal angle ruler.
4.19 Back Angle
4.19.1 Inspection Method
Inspect the back angle of the precision cut teeth between the calibration teeth and their sizes: it can be directly measured by the degree: read the actual angle value. When measuring the front inner angle, pay attention to the shadow caused by the tooth lift base, and the measured reading value needs to be corrected. The positive and negative values of the quick stop value are related to the direction of the broach and the universal angle ruler
See Figure 12. When the universal ruler is close to the outer diameter of the broach, adjust the mark, and the flat end of the tooth ruler is also close to the cutter and the plate with enough clearance, and read the reading α of the dial. The correction value of the tooth lift measurement, that is, the step lift element, is calculated according to the following formula; taui=H/P
The tooth lift pad of the adjacent teeth on the broaching surface:
The distance between the teeth.
The actual back angle α=measured value α. To improve the accuracy of the flow, in order to improve the micro-1 pass, the ruler is changed to a flat end step type, and the blade width is 0.3mm--0.5μm. 4.19.2 Detector only
Universal fluorine ruler:
4.20 Chip groove size
4.201 Detection method
Use chip groove fiberboard optical tracer station measurement area,
JB/I 10231.20-.2002
4.20.2 Inspection equipment
Wear plate:
4.21 Materials and hard seats
Materials and safety measurement BT1023-2001 Chapter 4.22 Marking and packaging
JB/I 231.1--2(H Chapters 13 and 14.20—2002
The standard angle ruler is used to measure the outer diameter of the broach, so that the inflamed end of the ruler can be in contact with the cutting blade without any continuity. The actual value of the tooth lift angle is calculated by the following formula: tan2=HP
The actual front angle of the adjacent teeth on one side can be increased by one broach
The new value of the tooth lift angle
Note: The original ruler width was 1.5mm, and in order to improve the cutting accuracy, the ruler width was changed to 0.3muw.5mm
4.18.2 Testing equipment
Universal angle ruler.
4.19 Back Angle
4.19.1 Inspection Method
Inspect the back angle of the precision cut teeth between the calibration teeth and their sizes: it can be directly measured by the degree: read the actual angle value. When measuring the front inner angle, pay attention to the shadow caused by the tooth lift base, and the measured reading value needs to be corrected. The positive and negative values of the quick stop value are related to the direction of the broach and the universal angle ruler
See Figure 12. When the universal ruler is close to the outer diameter of the broach, adjust the mark, and the flat end of the tooth ruler is also close to the cutter and the plate with enough clearance, and read the reading α of the dial. The correction value of the tooth lift measurement, that is, the step lift element, is calculated according to the following formula; taui=H/P
The tooth lift pad of the adjacent teeth on the broaching surface:
The distance between the teeth.
The actual back angle α=measured value α. To improve the accuracy of the flow, in order to improve the micro-1 pass, the ruler is changed to a flat end step type, and the blade width is 0.3mm--0.5μm. 4.19.2 Detector only
Universal fluorine ruler:
4.20 Chip groove size
4.201 Detection method
Use chip groove fiberboard optical tracer station measurement area,
JB/I 10231.20-.2002
4.20.2 Inspection equipment
Wear plate:
4.21 Materials and hard seats
Materials and safety measurement BT1023-2001 Chapter 4.22 Marking and packaging
JB/I 231.1--2(H Chapters 13 and 14.
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