Some standard content:
ICS 25.080.60
Machinery Industry Standard of the People's Republic of China
JB/T9930.32002
Replaces JB/T 9930.3—1999, JB/T 9932.3—1999Vertical band sawing machine
Part 3: Testing of the accuracy
Vertical band sawing machinePart3: Testing of the accuracyPublished on July 16, 2002
Implemented on December 1, 2002
Published by the State Economic and Trade Commission of the People's Republic of ChinaForeword,
Scope,
Normative references
General requirements
Geometric accuracy testing
Working accuracy testing..
JB/T 9930.3-2002
JB/T99306 Vertical Band Saw Machine" is divided into four parts: Part 1: Parameters;
Part 2: Series spectrum;
-Part 3: Accuracy inspection;
Part 4: Technical conditions.
JB/T9930.3--2002
This part is the third part of JB/T9930. This part replaces JB/T9930.3-1999 "Vertical Band Saw Machine Accuracy Inspection" and JB/T9932.3-1999 "Tiltable Vertical Band Saw Machine Accuracy Inspection". In addition to editing with reference to relevant standards and regulations, this revision also incorporates the relevant contents of JB/T9932.4-1999 into this part. Compared with JB/T9930.3-1999, the main changes of this part are as follows: the scope of application is expanded:
The work fine spot items are added.
This part is proposed by China Machinery Industry Federation. This part is under the jurisdiction of the National Technical Committee for Standardization of Metal Cutting Machine Tools. The responsible drafting unit of this part: Changsha Sawing Machine Research Institute. The main drafters of this part: Xie Wenzhong, Song Anxiang, Jiang Ping. The previous versions of the standards replaced by this part are: ZB J57 002-1987, JB/T9930.3-1999: ZB J57 007-1989, JB/T9932.3-1999.IE
1 Scope
Vertical band sawing machines
Part 3: Accuracy inspection
This part specifies the requirements and inspection methods for the geometric accuracy and working accuracy of vertical band sawing machines. This part is applicable to vertical band sawing machines with a maximum sawing thickness of 125mm to 1600mm. Vertical band sawing machines with a maximum sawing thickness of more than 1600mm can refer to this part. 2 Normative references
JB/T9930.3-2002
The provisions in the following documents become the provisions of this part through reference in this part of IBT9930. For dated references, all subsequent amendments (excluding errors) or revisions are not applicable to this part. However, parties to agreements based on this part are encouraged to investigate whether the latest versions of these documents can be used. For undated references, the latest versions apply to this part: GB/T17421.1-1998 General principles for inspection of machine tools Part 1: Geometric accuracy of machine tools without negative or fine machining conditions (eqVISO 230-1: 1996)
IB/T7963.2 Metal cutting band saw blades Part 2: Basic dimensions and tolerances B/T7963.3 Metal cutting band saw blades Part 3: Types and characteristics 3 General requirements
3.1 Adjust the installation level of the machine tool in accordance with 3.1 of GB/T17421.1-1998. Place a level gauge in the center of the workbench. The readings of the level gauge in the vertical or horizontal direction shall not exceed the requirements of the product instruction manual. 3.2 When the measured length is different from the length specified in this standard, the tolerance shall be converted according to the length that can be oxidized according to the provisions of 2.3.1.1 in GB/T17421.1--1998. When the conversion result is less than 0.01mm, it shall still be calculated as 0.01mm. 3.3 All geometric accuracy tests shall be carried out manually or with low-speed machine movement. 3.4 The working accuracy test of the machine tool shall be carried out on the specified test piece, the test piece material is 45 pin, normalized state, hardness is I70HBS~200HBS, and the hardness is uniform. The surface roughness R. value of the test piece shall not be greater than 6.3um. 3.5 The bimetallic band saw blade used in the detection of machine tool geometric accuracy and working accuracy must comply with the standards of JB/T7963.2 and 3BT7963.3.
3.6 The order of accuracy test items listed in this standard does not represent the actual inspection order. In order to facilitate the installation and disassembly of inspection tools and inspection, the inspection can be carried out in any order.
3.7 According to the agreement between the user and the manufacturer, the inspection items and inspection methods can be appropriately increased, decreased and adjusted. 1
4 Geometric accuracy inspection
Geometric accuracy inspection is shown in Table 1.
Inspection items
Radial runout of saw wheel
Instantaneous runout of saw wheel
Tolerance imm
Maximum cutting thickness
Maximum cutting thickness
-·1600
Inspection tools
Indicator
Indicator
Inspection method
According to GB17421.1-1998
5.6.1.2.2
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, and rotate the saw wheel for inspection. The maximum difference in the indicator readings is the radial runout error. 5.6.1.2.2 Fix the indicator on the fixed part of the machine tool so that its probe touches the edge of the end face of the clamp wheel vertically, and rotate the wheel for inspection.
The maximum difference of the indicator reading is the end
And the runout error
JB/T 9930.3—2002
Inspection items
Flatness of the work table
Maximum sawing
Cutting thickness
Table 1 (continued)
Tolerance mr
Pulley type I vertical belt laser bed
3 1000:0.60
C 1000:0.80
1000:1.0]
1000:1.20
Testing tools
Indicator
Civilian measuring block
Testing method
Refer to GB17421.1--[998 relevant
According to the provisions in the diagram, place the equal-height measuring blocks on the three basic points a, b and c of the workbench respectively, place the straightedge on the α-equal-height measuring block, and place an adjustable measuring block at point e. After adjustment, make it blend with the testing surface of the straightedge. Then put the ruler on a flat surface, place an adjustable gauge block at the top, and adjust it so that it contacts the ruler inspection surface. Place the ruler in the direction shown in the figure, and use the indicator to measure the distance between the workbench and the ruler inspection surface. The difference between the maximum distance and the minimum distance measured by the indicator is the plane error JB/T 9930.3—2002
H-Set brush thickness
Inspection items
Guide sample (or
guide arm guide)
Side (parallel to
feed sheet direction) to
Verticality of
Belt strip surface to
Verticality of
Note 1: For G5 inspection, the tilting pulley type vertical belt bed should have its saw frame in a vertical position Note 2: For In 05 inspection, remove the guide element if necessary, wife 1 (continued)
full tolerancerun
maximum sawing thickness
product large pliers cutting thickness
·~800
--1600
inspection tool
indicator
special angle ruler
indicator
special angle ruler
special inspection recommendation
inspection method
refer to GB/T17421.1-1998 has relevant provisions. Install the special angle ruler on the workbench, and the indicator on the cutting seat with the stopper positioning surface, so that the probe touches the guide rod surface vertically, and the table seat moves on the special angle ruler for inspection. The maximum difference in the indicator reading is the verticality. Install the special inspection tape, install the special angle ruler on the workbench, and the indicator on the table seat with the stopper positioning surface, so that the probe touches the side of the inspection tape vertically, and the table seat moves on the special ruler for inspection: the maximum difference in the indicator reading is the verticality difference. JB/F9930.3-2002 t||Inspection items
a) Parallelism of moving worktable to guide rod
side surface
b) Parallelism of saw frame to idealbzxZ.net
saw section of test piece
Maximum offset cutting thickness
>500~-80D
800~1600
Note 1: Item a) is applicable to vertical band sawing machines with worktable for feeding motion: Note 2: Item b) is only applicable to vertical band sawing machines with saw frame for feeding motion. Table 1 (continued) Ordinary vertical band saw machine Pulley type Vertical band saw The value for any 200-meter measuring length is 11-meter type Band saw machine The value for any 200-meter measuring length is 11-meter type Band saw machine The value for any 200-meter measuring length is 11-meter Inspection tool Indicator Special ruler Inspection method Refer to GB 17421.1-1998 ||Place the special ruler close to the
side of the guide rod, fix the indicator on the upper workbench so that its probe touches the ruler inspection surface vertically, move the workbench for inspection, the maximum difference
of the indicator on any 200 measuring length is the parallelism error
Calibrate both ends of the special ruler and fix it on the
workbench, fix the indicator on the saw frame, so that its probe touches the ruler inspection surface vertically, move the saw for inspection, the maximum difference
of the indicator
on the intended 200 measuring length is the parallelism error
JB/T 9930.3—2002
unot+t/H
H-maximum sawing tower
Test items
Change of guide rod position caused by the comprehensive gap between guide rod and guide
seat
≤320
Table 1 (continued)
Tolerance mm
Maximum sawing thickness
1600~-
Test tools
Indicator
Spring scale
Test method
Refer to GB17421.1—1998.
Fix the indicator on the workbench so that its contact touches the side of the guide rod vertically (the surface is parallel to the feed direction), as shown in the figure. Use a spring balance to add force (F=150N) for inspection. The maximum difference in the indicator reading is the guide rod position. Its change error is JB/T 9930.3-2002. 5 Working accuracy inspection Working accuracy inspection is shown in Table 2. Schematic diagram and test piece dimensions Working meeting Financial quality: 45th issue Maximum sawing thickness Test piece section 100×50 160×100 200×100 200×200 300×400 400 ×600
Test properties
Clamp the semi-finished
test piece on the
workbench, the
workbench (or saw frame)
feeds mechanically or
hand pushes the workpiece
feeds, and saws off a piece
Note: P2 is not applicable to vertical band sawing machines with manual feed. Pre-sawing conditions
Use
B/T7963.2 and
B/T7963.3 compliant|| Metal band saw, cutting blade, use as the correct band before sawing specifications Inspection items Verticality of sawn piece surface to reference surface Verticality of sawn piece surface in longitudinal direction (feeding piece direction) Tolerance (mm) Maximum sawing thickness Center. 409100 Ordinary vertical band saw bed Pulley 1 Type II vertical band saw machine
Pulley type II vertical band saw machine
Inspection tools
Inspection method
Refer to GBT
[742], 1-1998 relevant provisions
4.1: 4.2
Use a square and a feeler gauge to inspect. The maximum clearance obtained by the feeler gauge is the verticality of the end face of the sawed piece to the reference plane
Use a flat surface and a feeler gauge to inspect. The maximum clearance obtained by the feeler gauge is the longitudinal straightness of the end face of the sawed piece
JB/T 9930.3-2002
Simplified drawing and specimen size
Material: 45 steel
Maximum sawing
cutting thickness
Test properties
Clamp the precision-finished specimen on the workbench, machine
Clamp the semi-finished
specimen on the workbench, machine
bed Automatic cycle
Continuous staggered cutting 5 pieces
Note: P3P4 is only applicable to white-motion products
Cutting conditions
Use
bimetallic band saw
strips
that conform to
JB/T7963.2 and
JB/T7963.3, and the cutting scene
according to
normal use
sawing specifications
t||Inspection items
Table 2 (continued)
Saw-off pieces
Saw-off piece length
Dimensional repeatability
Maximum sawing thickness
Maximum sawing thickness
Inspection tools
Micrometer
Inspection method
Refer to the relevant provisions of GB/T7421.1
—1998| |tt||Use micrometer to check, the maximum difference of readings at different places of sawn pieces is
Equal thickness
Use micrometer to check, the maximum difference of data at the same position of each lead piece is
The length dimension of sawn pieces
is the precision
JB/T9930.3-1—1998 About
Place the special ruler close to the
side of the guide rod, fix the indicator on the upper working table so that its probe touches the ruler inspection surface vertically, move the working table for inspection, the maximum difference
of the indicator on any 200 measuring length is the parallelism error
Calibrate both ends of the special ruler and fix it on the
working table, fix the indicator on the saw frame, so that its probe touches the ruler inspection surface vertically, move the saw for inspection, the maximum difference
of the indicator
on the intended 200 measuring length is the parallelism error
JB/T 9930.3—2002
unot+t/H
H-maximum sawing tower
Test items
Change of guide rod position caused by the comprehensive gap between guide rod and guide
seat
≤320
Table 1 (continued)
Tolerance mm
Maximum sawing thickness
1600~-
Test tools
Indicator
Spring scale
Test method
Refer to GB17421.1—1998.
Fix the indicator on the workbench so that its contact touches the side of the guide rod vertically (the surface is parallel to the feed direction), as shown in the figure. Use a spring balance to add force (F=150N) for inspection. The maximum difference in the indicator reading is the guide rod position. Its change error is JB/T 9930.3-2002. 5 Working accuracy inspection Working accuracy inspection is shown in Table 2. Schematic diagram and test piece dimensions Working meeting Financial quality: 45th issue Maximum sawing thickness Test piece section 100×50 160×100 200×100 200×200 300×400 400 ×600
Test properties
Clamp the semi-finished
test piece on the
workbench, the
workbench (or saw frame)
feeds mechanically or
hand pushes the workpiece
feeds, and saws off a piece
Note: P2 is not applicable to vertical band sawing machines with manual feed. Pre-sawing conditions
Use
B/T7963.2 and
B/T7963.3 compliant|| Metal band saw, cutting blade, use as the correct band before sawing specifications Inspection items Verticality of sawn piece surface to reference surface Verticality of sawn piece surface in longitudinal direction (feeding piece direction) Tolerance (mm) Maximum sawing thickness Center. 409100 Ordinary vertical band saw bed Pulley 1 Type II vertical band saw machine
Pulley type II vertical band saw machine
Inspection tools
Inspection method
Refer to GBT
[742], 1-1998 relevant provisions
4.1: 4.2
Use a square and a feeler gauge to inspect. The maximum clearance obtained by the feeler gauge is the verticality of the end face of the sawed piece to the reference plane
Use a flat surface and a feeler gauge to inspect. The maximum clearance obtained by the feeler gauge is the longitudinal straightness of the end face of the sawed piece
JB/T 9930.3-2002
Simplified drawing and specimen size
Material: 45 steel
Maximum sawing
cutting thickness
Test properties
Clamp the precision-finished specimen on the workbench, machine
Clamp the semi-finished
specimen on the workbench, machine
bed Automatic cycle
Continuous staggered cutting 5 pieces
Note: P3P4 is only applicable to white-motion products
Cutting conditions
Use
bimetallic band saw
strips
that conform to
JB/T7963.2 and
JB/T7963.3, and the cutting scene
according to
normal use
sawing specifications
t||Inspection items
Table 2 (continued)
Saw-off pieces
Saw-off piece length
Dimensional repeatability
Maximum sawing thickness
Maximum sawing thickness
Inspection tools
Micrometer
Inspection method
Refer to the relevant provisions of GB/T7421.1
—1998| |tt||Use micrometer to check, the maximum difference of readings at different places of sawn pieces is
Equal thickness
Use micrometer to check, the maximum difference of data at the same position of each lead piece is
The length dimension of sawn pieces
is the precision
JB/T9930.3-1—1998 About
Place the special ruler close to the
side of the guide rod, fix the indicator on the upper working table so that its probe touches the ruler inspection surface vertically, move the working table for inspection, the maximum difference
of the indicator on any 200 measuring length is the parallelism error
Calibrate both ends of the special ruler and fix it on the
working table, fix the indicator on the saw frame, so that its probe touches the ruler inspection surface vertically, move the saw for inspection, the maximum difference
of the indicator
on the intended 200 measuring length is the parallelism error
JB/T 9930.3—2002
unot+t/H
H-maximum sawing tower
Test items
Change of guide rod position caused by the comprehensive gap between guide rod and guide
seat
≤320
Table 1 (continued)
Tolerance mm
Maximum sawing thickness
1600~-
Test tools
Indicator
Spring scale
Test method
Refer to GB17421.1—1998.
Fix the indicator on the workbench so that its contact touches the side of the guide rod vertically (the surface is parallel to the feed direction), as shown in the figure. Use a spring balance to add force (F=150N) for inspection. The maximum difference in the indicator reading is the guide rod position. Its change error is JB/T 9930.3-2002. 5 Working accuracy inspection Working accuracy inspection is shown in Table 2. Schematic diagram and test piece dimensions Working meeting Financial quality: 45th issue Maximum sawing thickness Test piece section 100×50 160×100 200×100 200×200 300×400 400 ×600
Test properties
Clamp the semi-finished
test piece on the
workbench, the
workbench (or saw frame)
feeds mechanically or
hand pushes the workpiece
feeds, and saws off a piece
Note: P2 is not applicable to vertical band sawing machines with manual feed. Pre-sawing conditions
Use
B/T7963.2 and
B/T7963.3 compliant|| Metal band saw, cutting blade, use as the correct band before sawing specifications Inspection items Verticality of sawn piece surface to reference surface Verticality of sawn piece surface in longitudinal direction (feeding piece direction) Tolerance (mm) Maximum sawing thickness Center. 409100 Ordinary vertical band saw bed Pulley 1 Type II vertical band saw machine
Pulley type II vertical band saw machine
Inspection tools
Inspection method
Refer to GBT
[742], 1-1998 relevant provisions
4.1: 4.2
Use a square and a feeler gauge to inspect. The maximum clearance obtained by the feeler gauge is the verticality of the end face of the sawed piece to the reference plane
Use a flat surface and a feeler gauge to inspect. The maximum clearance obtained by the feeler gauge is the longitudinal straightness of the end face of the sawed piece
JB/T 9930.3-2002
Simplified drawing and specimen size
Material: 45 steel
Maximum sawing
cutting thickness
Test properties
Clamp the precision-finished specimen on the workbench, machine
Clamp the semi-finished
specimen on the workbench, machine
bed Automatic cycle
Continuous staggered cutting 5 pieces
Note: P3P4 is only applicable to white-motion products
Cutting conditions
Use
bimetallic band saw
strips
that conform to
JB/T7963.2 and
JB/T7963.3, and the cutting scene
according to
normal use
sawing specifications
t||Inspection items
Table 2 (continued)
Saw-off pieces
Saw-off piece length
Dimensional repeatability
Maximum sawing thickness
Maximum sawing thickness
Inspection tools
Micrometer
Inspection method
Refer to the relevant provisions of GB/T7421.1
—1998| |tt||Use micrometer to check, the maximum difference of readings at different places of sawn pieces is
Equal thickness
Use micrometer to check, the maximum difference of data at the same position of each lead piece is
The length dimension of sawn pieces
is the precision
JB/T9930.3-1-1998 has relevant provisions 4.1: 4.2 Use an angle ruler and a feeler gauge to check. The maximum distance measured by the feeler gauge is the verticality of the end face of the sawn piece to the reference plane. Use a flat surface and a feeler gauge to check. The maximum distance measured by the feeler gauge is the longitudinal straightness of the end face of the sawn piece. JB/T 9930.3-2002
Simplified drawing and specimen size
Material: 45 steel
Maximum sawing
cutting thickness
Test properties
Clamp the precision-finished specimen on the workbench, machine
Clamp the semi-finished
specimen on the workbench, machine
bed Automatic cycle
Continuous staggered cutting 5 pieces
Note: P3P4 is only applicable to white-motion products
Cutting conditions
Use
bimetallic band saw
strips
that conform to
JB/T7963.2 and
JB/T7963.3, and the cutting scene
according to
normal use
sawing specifications
t||Inspection items
Table 2 (continued)
Saw-off pieces
Saw-off piece length
Dimensional repeatability
Maximum sawing thickness
Maximum sawing thickness
Inspection tools
Micrometer
Inspection method
Refer to the relevant provisions of GB/T7421.1
—1998| |tt||Use micrometer to check, the maximum difference of readings at different places of sawn pieces is
Equal thickness
Use micrometer to check, the maximum difference of data at the same position of each lead piece is
The length dimension of sawn pieces
is the precision
JB/T9930.3-1-1998 has relevant provisions 4.1: 4.2 Use an angle ruler and a feeler gauge to check. The maximum distance measured by the feeler gauge is the verticality of the end face of the sawn piece to the reference plane. Use a flat surface and a feeler gauge to check. The maximum distance measured by the feeler gauge is the longitudinal straightness of the end face of the sawn piece. JB/T 9930.3-2002
Simplified drawing and specimen size
Material: 45 steel
Maximum sawing
cutting thickness
Test properties
Clamp the precision-finished specimen on the workbench, machine
Clamp the semi-finished
specimen on the workbench, machine
bed Automatic cycle
Continuous staggered cutting 5 pieces
Note: P3P4 is only applicable to white-motion products
Cutting conditions
Use
bimetallic band saw
strips
that conform to
JB/T7963.2 and
JB/T7963.3, and the cutting scene
according to
normal use
sawing specifications
t||Inspection items
Table 2 (continued)
Saw-off pieces
Saw-off piece length
Dimensional repeatability
Maximum sawing thickness
Maximum sawing thickness
Inspection tools
Micrometer
Inspection method
Refer to the relevant provisions of GB/T7421.1
—1998| |tt||Use micrometer to check, the maximum difference of readings at different places of sawn pieces is
Equal thickness
Use micrometer to check, the maximum difference of data at the same position of each lead piece is
The length dimension of sawn pieces
is the precision
JB/T9930.3-
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