JB/T 3043-1999 This standard is a revision of JB 3043-82 "Precision of multi-axis boxes for modular machine tools". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged. This standard specifies the geometric accuracy requirements and inspection methods for multi-axis boxes of modular machine tools. This standard is applicable to multi-axis boxes of modular machine tools and their automatic lines. This standard was first issued in 1975 and revised for the first time in 1982. JB/T 3043-1999 Precision inspection of multi-axis boxes for modular machine tools JB/T3043-1999 standard download decompression password: www.bzxz.net

ICS25.060.99
Machinery Industry Standard of the People's Republic of China
JB/T3043—1999
Modular Machine Tools
Multi-axis Box
Published on 1999-05-20
Precision Inspection
Implemented on 2000-01-01
National Bureau of Machinery Industry
JB/T3043—1999
This standard is revised on the basis of JB304382 "Multi-axis Box Precision of Modular Machine Tools". The technical content of this standard is consistent with that of JB3043-82, and it has only been re-edited according to relevant regulations. This standard replaces JB3043-82 from the date of implementation. This standard is proposed by the National Technical Committee for Standardization of Metal Cutting Machine Tools. This standard is under the jurisdiction of the Modular Machine Tool Branch of the National Technical Committee for Standardization of Metal Cutting Machine Tools. The responsible drafting unit of this standard: Dalian Modular Machine Tool Research Institute. This standard was first issued in 1975 and revised for the first time in 1982. 1
1 Scope
Machinery Industry Standard of the People's Republic of China
Modular Machine Tools
Precision Inspection of Multi-axis Boxes
This standard defines the geometric accuracy requirements and inspection methods for multi-axis boxes of modular machine tools. This standard applies to multi-axis boxes of modular machine tools and their automatic lines. 2 Referenced Standards
JB/T3043—1999
Replaces JB304382
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T17421.1—1998 General Rules for Machine Tool Inspection Part 1: Geometric Accuracy of Machine Tools under No-load or Finishing Conditions 3 General Requirements
3.1 When using this standard, the relevant provisions of GB/T17421.1 should be referred to. 3.2 The inspection tools and instruments specified in this standard are arbitration: in production, any other inspection tools and instruments may be used under the premise of ensuring the inspection accuracy.
3.3 If there are special requirements, additional supplementary provisions may be proposed 3.4 Place the multi-axis box on a flat plate and conduct various accuracy inspections. Approved by the State Bureau of Machinery Industry on May 20, 1999, and implemented on January 1, 2000
4 Geometric accuracy inspection
Inspection items
Spindle holebzxz.net
Radial runout of the inner centering diameter of all spindles
Connection method of tool and spindle
Rigid connection
Floating connection
Inspection tool
Indicator
Inspection rod
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998
5.6.1.2.3
Insert an inspection rod into the spindle hole. Fix the indicator on the flat plate so that its probe touches the upper generatrix of the inspection rod at a
vertically. Rotate the spindle for no less than 5 turns and note the maximum difference in the indicator readings; then move the indicator to the side busbar 90° apart and perform the same test. The largest maximum difference between the two tests is taken as the measured value.
Then move the indicator to b,
repeat the above inspection and find the measured value
JB/T3043-
Inspection items
All spindles
Parallelism of rotation axes
Spindle hole
Connection method between tool and spindle
Rigid connection
0.025/150
Floating connection
Inspection tool
Indicator
Inspection rod
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998
5.4.1.2.4
Insert an inspection
rod into the spindle hole. Place the indicator on a flat plate and
place its probe vertically on the upper generatrix of the test rod at
, and record the reading. Then move the
indicator to||b||, 150mm away from
a, and record the reading. Calculate the difference between the indicator readings at
a and b. Then rotate the spindle 180° and
inspect it again using the same method.
Half of the algebraic sum of the difference in the readings of the two inspections is the parallelism of the inspected spindle to the flat plate.
The algebraic difference between the maximum and minimum
parallelism of all spindles is taken as the measured value.
Put a square box on the flat plate and make the square box parallel to one spindle. Then make the indicator seat close to the square box, carry out the same inspection as above and find out the measured value. JB/T3043- Mechanical Industry Standard Modular Machine Tool Multi-axis Box Accuracy Inspection JB/T3043—1999 Published and distributed by the Machinery Standardization Research Institute of the Ministry of Machinery Industry Printed by the Machinery Standardization Research Institute of the Ministry of Machinery Industry (No. 2 Shouti South Road, Beijing, Postal Code 100044)* 1/16 Sheet 1/2 Number of words 8000 Format 880×1230 First edition in August 1999: First printing in August 1999 Number of prints 1—500 Price 500 yuan
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.