JB/T 9931.3-1999 This standard is a revision of ZB J57 004.2-88 "Horizontal bow saw machine accuracy". During the revision, only editorial changes were made according to relevant regulations, and the main technical content remained unchanged. This standard is part of the JB/T 9931 "Horizontal bow saw machine" series of standards, which includes the following four parts: JB/T 9931.1-1999 Horizontal bow saw machine parameters JB/T 9931.2-1999 Horizontal bow saw machine series JB/T 9931.3-1999 Horizontal bow saw machine accuracy inspection JB/T 9931.4-1999 Horizontal bow saw machine technical conditions This standard specifies the requirements and inspection methods for the geometric accuracy and working accuracy of horizontal bow saw machines. This standard applies to horizontal bow saw machines with a maximum sawing diameter of 160~400mm. This standard was first issued in July 1988. JB/T 9931.3-1999 Accuracy test of horizontal bow sawing machine JB/T9931.3-1999 Standard download decompression password: www.bzxz.net

[C 25.090.30
Machinery Industry Standard of the People's Republic of China
JB/T9931,19931.4--1999
Horizontal Bow Saw
1999-05-20 Issued
State Machinery Industry Bureau
2000-01-01 Implementation
JB/T9931.3--1999
This standard is based on the technical content of ZDJ57042-88: This standard is revised in accordance with the technical content of ZBJ57004.2-88. The relevant regulations have been re-edited and part of the JB99 "Horizontal Cutting Machine" series of standards has been standardized. This series of standards includes the following four parts: JB/T9931.1-1999 Horizontal or inch sawing machine parameters JB/131.2-1999 Horizontal sawing machine series spectrum JB/1V31.3-1999 Horizontal horse sawing machine index test JB.T31.4-1999 Horizontal cutting machine technical conditions This standard replaces J57004.2-8% from the date of implementation. This standard was proposed by the National Enterprise Standardization Technical Committee for Cutting Machine Tools. This standard was issued by the National Enterprise Standardization Technical Committee for Cutting Machine Tools. Technical Committee Sawing Machine Branch. The responsible drafting unit of this standard: Hunan Zhu Machine Factory, this standard was first issued in July 19.
Machinery Industry Standard of the People's Republic of China
Horizontal Bow Saw Machine
Precision Inspection
This standard specifies the requirements for the precision and working accuracy of horizontal guide saw machines. This standard is applicable to horizontal saw machines with a front diameter of 160-400mm. 2 Reference Standards
JB/T9931.3-1999
Generation 2J57004.2-88
The following standards are The clauses contained in the standard constitute the clauses of this standard through reference in other standards. When this standard is used, the versions adopted are valid. All standards will be revised. To make this standard more accurate, the latest version of the following standards shall be used. GBT60801985 Machine tool error clauses
GBT17421.1-1998 Machine tool inspection and testing Part 1: 3 General requirements for machine tools under no-load or fine machining
3.1 When using other standards, it is necessary to refer to GB17421.1. In particular, the installation before fine machining, inspection of the left running edge, inspection of the treatment and inspection of the accuracy of the tool. 3.2 When the actual measured length is different from the length specified in this standard, the difference shall be converted according to the length that can be measured according to the provisions of 23.11 in GR.17421.1-199B. When the conversion result is less than 0.1 μm, it shall be calculated as 0.0 μm. 3.3 The order of sugar content test items listed in this standard does not represent the actual order. In order to facilitate the installation and inspection of tools and inspections, the inspections shall be carried out in a better order.
34 According to the agreement between the user and the manufacturer, the inspection items and inspection methods may be appropriately reduced and adjusted. Approved by Guotai Machinery Industry Bureau on May 20, 1999, implemented on April 1, 2000
4 Geometric precision test
Test temperature
Parallelism of the plane to the saw blade moving surface:
a. According to the working direction
b. The verticality of the axis of the test piece in the sliding direction to the bow movement plane
a. According to the working direction
h. The saw blade moves along the road
Maximum limit straight
The length of the letter is 15 yuan. It is a tool for measuring the diameter of the saw. The indicator is a special ruler. The indicator is a special inspection tool. Refer to GB/17421.1-1908. 5.4.2.2.21. The special ruler of the plane is used to check the surface of the saw with a 0.03mm ruler. The indicator is fixed on the bed. The vertical distance between the probe and the working surface is 1. The pot guide is respectively measured in the working direction and the forward and backward direction. The maximum difference of the indicator number is the adjustment! 5.4.2.2.2.2
Put the workpiece out of the special station and place it on the other special tool of the vehicle with the upper and lower planes fixedly indicating the measurement! The head is vertically inspected at the end of the special inspection. The stroke direction and the force of the movement are respectively inspected.
According to the maximum value of the indicator reading, the vertical error of the axis line to the saw operation plane at the point within the width is 100 degrees
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