JB/T 4318.3-1996 Horizontal Band Saw Machine Accuracy JB/T4318.3-1996 Standard Download Decompression Password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
Mechanical Industry Standard of the People's Republic of China
Horizontal Band Saw Machine
Subject Content and Scope of Application
This standard specifies the requirements and inspection methods for the geometric accuracy and working accuracy of horizontal band saw machines. This standard applies to horizontal band saw machines with a maximum sawing diameter less than or equal to 1000mm. Reference Standards
GB 6079.2
JB2670
General Requirements
Types, Specifications and Technical Requirements for Metal Cutting Band Saw Blades General Rules for Precision Inspection of Metal Cutting Machine Tools
JB/T4318.3-1996
Replace JB4319-86
Refer to 3.1 of JB2670 to adjust the installation level of the machine tool. Place a level gauge in the center of the workbench, and the readings of the level gauge in the vertical and horizontal directions shall not exceed the requirements of the instructions.
3.2 When the measured length is different from the length specified in this standard, the tolerance should be converted according to the measurable length in accordance with the provisions of 2.3.1.1 of JB2670. When the conversion result is less than 0.01mm, it is still calculated as 0.01mm. 3.3
During inspection, the actual inspection sequence can generally be arranged according to the requirements of assembly and disassembly inspection tools, inspection convenience, and inspection items. According to the agreement between the user and the manufacturer, the inspection items and inspection methods can be appropriately increased, decreased, and adjusted. 3.4
The bimetallic band saw blades used in the inspection of machine tool geometric accuracy and working accuracy must comply with the relevant technical specifications of GB6079.2. Approved by the Ministry of Machinery Industry on April 22, 1996. Geometric accuracy inspection and supervision. Implemented on July 1, 1996. 4 Geometric accuracy inspection. Inspection items. Radial runout of the pot wheel. Surface runout of the pot wheel. Position change of the saw wheel caused by the combined clearance between the aluminum wheel and the shaft (only applicable to machine tools with the maximum sawing straight diameter less than and equal to 630mm). Inspection items. Downward movement of the saw frame on the test piece. Ideal sawing section. ||Parallelism
Transverse
position change
(only applicable to machine tools with
maximum sawing
diameter less than and equal to
630mm)
≤250
≤250
Maximum aluminum
front diameter
Maximum sawing
Maximum sawing
diameter
≤250
Force FN
Driving wheel
Driven wheel
250~630
0.10 on 100 measuring length
Maximum sawing
diameter
Force F
>400~ 630
Inspection tool
Indicator
Indicator
Indicator
Spring balance
Inspection tool
Indicator
Special inspection tool
Indicator
Spring release
Inspection method
Refer to the relevant provisions of JB2670
Fix the indicator
on the fixed part of the machine tool so that its probe touches the outer cylindrical surface of the saw wheel vertically. Rotate the saw wheel for inspection.
The maximum difference in the indicator reading is the radial moving error
5.6.3.1.1
Fix the indicator
on the fixed part of the machine tool so that its probe touches the edge of the end face of the offset wheel vertically. Rotate the saw wheel for inspection.
The maximum difference in the indicator readings is the end face moving error
Fix the indicator on the saw frame so that its probe touches the end face of the saw wheel vertically near the edge. Use a spring scale to apply force F on the other side of the indicator for inspection
The maximum difference in the indicator readings is the position change error of the saw wheel
Inspection method
Refer to the relevant provisions of JB2670
5.4.2.2.22
Tension the saw belt, place the special inspection fixture that replaces the aluminum section of the test piece on the workbench, and fix the clamping surface of the special inspection fixture close to the working tiger. Fix the indicator in the middle position of the saw frame so that its probe touches the inspection surface of the inspection fixture vertically. Move the aluminum frame for inspection.
The maximum difference in the indicator readings is the parallelism error of the downward movement of the aluminum frame to the ideal saw section of the test piece.
Fix the indicator in the middle position of the saw frame so that its probe touches the side of the workbench vise vertically. Use a spring scale to apply force F alternately back and forth at the saw band tensioning handwheel for inspection. The maximum difference in the indicator readings is the error of the lateral position change of the saw frame. JB/T4318.3 Inspection items Parallelism of the downward movement of the saw frame to the ideal saw section of the test piece Transverse position change of aluminum (only applicable to machine tools with the maximum cutting diameter less than and equal to 630mm) Inspection items Clamping of the vise Verticality of the working table Fixed clamp of the working tiger pin Verticality of the side of the band saw blade t||0.10 on 100 measuring length
Maximum saw
front diameter
Force F
≤400
>400~630
(the two clamping surfaces are only allowed to be inclined toward the workpiece)
Note, for inspection items G and G7, for machine tools with front and rear working jaws, it is allowed to select any of the working jaws as the reference Inspection tool
Indicator
Special inspection fixture
Indicator
Spring release
Inspection tool
Inspection method
Refer to the relevant provisions of JB2670
5.4.2.2.2.2
Tension saw belt, a special inspection fixture replacing the aluminum section of the test piece is placed on the workbench, and one side of the special inspection fixture is close to the working vise to fix the clamping surface. Fix the indicator
in the middle of the saw frame so that its probe touches the inspection surface of the inspection fixture vertically. Move the aluminum frame for inspection. The maximum difference in the indicator reading is the parallelism error of the saw frame moving downward to the ideal saw section of the test piece. Fix the indicator
in the middle of the saw frame so that its probe touches the side of the workbench vise vertically. Use the spring stalk to apply force F alternately back and forth at the saw band tensioning hand wheel for inspection. The maximum difference in the indicator reading is the error of the horizontal position change of the saw frame. Inspection method. Refer to the relevant provisions of JB2670. Place the angle ruler on the workbench, and the other side of the angle ruler lightly touches the clamping surface of the vise. Use a feeler gauge to check. The maximum gap left by the feeler gauge is the verticality error of the clamping surface of the vise to the workbench. Place the angle ruler horizontally on the workbench, with the short side of the angle ruler close to the fixed clamping surface of the work vise, and the other long side lightly touches the side of the band saw blade. Use a feeler gauge to check. The maximum gap left by the feeler gauge is the verticality error of the fixed clamping surface of the work vise to the side of the band saw blade. JB/T4318.31. JB/T4318.3
Machine tools with a maximum diameter less than or equal to 630mm
)
Inspection items
The clamping surface of the vise is perpendicular to the work surface
The fixing clamp of the working vise pin is perpendicular to the side surface of the band saw blade
(The two clamping surfaces can only be inclined toward the workpiece)
Note, inspection items, (7 For machine tools with front and rear working vises, any one of the working vises can be selected as the reference indicator
Spring release
Inspection tool
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Defined use, in the wrong belt Dong hand batch
Spring Apply force F alternately back and forth on the spring scale for inspection. The maximum difference in the indicator readings is the error of the lateral position change of the saw frame. Inspection method: Refer to the relevant provisions of JB2670. Place the angle ruler on the work surface, and lightly touch the other side of the angle ruler against the clamping surface of the vise. Use a feeler gauge for inspection. The maximum gap left by the feeler gauge is the verticality error of the clamping surface of the vise to the work surface. Place the angle ruler on the work surface, and lightly touch the other side of the angle ruler against the clamping surface of the vise. The fixed clamping surface of the working vise, and the other long side lightly against the side of the band saw blade, use a feeler gauge to check.
The maximum gap measured by the feeler gauge is the verticality error of the fixed clamping surface of the working vise to the side of the band saw blade
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JB/T4318.3
5 Working accuracy inspection
Simplified diagram and test piece size
Material: 45
Measurement of large saw pair diameter
≤250
>290 ~40
>400~630
Material: 45
Material: 45
Large quantity According to the diameter
≤ 20
>250~400
>400~630
>630~100)
1)PI is only suitable for automatic products
2)One of the methods can be selected during P2 inspection. Additional instructions:
Inspection nature
Clamp the sample for rate finishing
in the vise,
saw off a piece
Cutting conditions
Use the one that meets
GB 6079.2
Bimetallic strip
saw blades, the cutting
amount shall be carried out according to the normal
use
cutting||specifications
Test items
Equal thickness
of sawn pieces
Verticality
of the sheath
of the work surface
Maximum sawing diameter
≤250
Maximum sawing diameter
≤250
JB/T 4318.3—1996
This standard is proposed by the National Technical Committee for Standardization of Metal Cutting Machine Tools. This standard is under the jurisdiction and drafting of Changsha Sawing Machine Research Institute. This standard was first issued in 1986.
Micrometer
Refer to the relevant provisions of JB2670
4.1, 4.2
Use micrometer to check, the maximum difference of the readings at various places of the sawn piece
is the
equal thickness error
4.1, 4.2
a. Use angle ruler and feeler gauge to check
The maximum trace measured by the feeler gauge is the
straightness error of the end face of the sawn piece perpendicular to its element line
b hClamp the test piece in a vise and saw it off, then use a square and a feeler gauge to check. Place the two sides of the square against the work surface and the sawn surface respectively. The maximum gap measured with the feeler gauge is the verticality error of the sawn surface to the work surface. Additional instructions: JB/T4318.3-1996 This standard was proposed by the National Technical Committee for Standardization of Metal Cutting Machine Tools. This standard was drafted by the Changsha Sawing Machine Research Institute. This standard was first issued in 1986.
People's Republic of China
Mechanical Industry Standard
Horizontal Band Saw Machine Accuracy
JB/T 431831996
Published and issued by the Mechanical Science Research Institute
Printed by the Mechanical Science Research Institute
(No. 2 Shouti South Road, BeijingbZxz.net
Postal Code 100044)
Sheet 1/2 Number of words 12000
Format 880X1230
First edition in October 1996
First printing in October 1996
Number of prints 1-500
Price 500 yuan
96-042
Mechanical Industry Standard Service Network: http:/iwwwJB.ac.cn3-1996
This standard was proposed by the National Technical Committee for Standardization of Metal Cutting Machine Tools. This standard was drafted by Changsha Sawing Machine Research Institute. This standard was first issued in 1986.
People's Republic of China
Mechanical Industry Standard
Horizontal Band Saw Machine Accuracy
JB/T 431831996
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing
Postal Code 100044)
Sheet 1/2 Number of words 12000
Format 880X1230
First edition in October 1996
First printing in October 1996
Number of prints 1-500
Price 500 yuan
96-042
Mechanical Industry Standard Service Network: http:/iwwwJB.ac.cn3-1996
This standard was proposed by the National Technical Committee for Standardization of Metal Cutting Machine Tools. This standard was drafted by Changsha Sawing Machine Research Institute. This standard was first issued in 1986.
People's Republic of China
Mechanical Industry Standard
Horizontal Band Saw Machine Accuracy
JB/T 431831996
Published and issued by the Mechanical Science Research Institute
Printed by the Mechanical Science Research Institute
(No. 2 Shouti South Road, Beijing
Postal Code 100044)
Sheet 1/2 Number of words 12000
Format 880X1230
First edition in October 1996
First printing in October 1996
Number of prints 1-500
Price 500 yuan
96-042
Mechanical Industry Standard Service Network: http:/iwwwJB.ac.cn
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