JB/T 8378-1996 Precision of vertical motor rotor die casting machine

This standard specifies the accuracy, inspection method and inspection rules of full vertical motor rotor die casting machine. JB/T 8378-1996 Full vertical motor rotor die casting machine accuracy JB/T8378-1996 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JR/T83781996
Full Vertical Motor Rotor Die Casting Machine
1996-04-22 Issued
Ministry of Machinery Industry of the People's Republic of China
1996-07-01 Implementation
JB93781996
Full Vertical Motor Rotor Die Casting Machine is a special machine developed in the early 1980s with the development of home appliance industry. At first, it was mainly used for die casting of micro motors. With the maturity of die casting technology, it has been pushed to the center of the field of motor rotor casting. The demand for business has also increased year by year. In order to meet the needs of various manufacturers and users, this standard is formulated. This standard specifies the full range of vertical motor stop conditions, inspection force method, inspection rules, etc., thus providing a technical basis for the production, technical exchanges and convenience of vertical motors for die-casting machines in the enterprise industry. The standard was proposed by the National Standards Committee and assigned to the factory: The drafting unit of this standard is Zinan Zhengling Machine Factory. The main contributors to this standard are: Suo Shaogao, Wu Haiyun, Ding Shuibing. This standard was first issued in April 2005. 1 Scope
Machinery Industry Standard of the People's Republic of China
All vertical motor rotor die-casting machines
JB/TB3781990
This standard specifies the vertical motor rotor of a large enterprise (hereinafter referred to as a die-casting machine) in the area of ​​​​the machine (hereinafter referred to as the die-casting machine). The standard is applicable to the production of Japanese rotors, with horizontal distribution as the main storage machine. 2 Referenced standards
The provisions of the standards listed in the list are referenced in this standard and constitute the provisions of the state standard. At the time of this standard: the following versions are in effect, and the standards will be revised. All parties using this standard should use the latest version of the following standards. G1184C Provisions for shape and position tolerances without tolerances JB 270 -2
General rules for precision inspection of cutting machine
3 Precision and inspection methods
3.1 Inspection method:
b: indicator;
inspection method.
1 Note: The inspection method should be in accordance with the relevant conditions in Appendix A of JB2570. 3.2 Precision and grid age methods
3.2. The parallelism between the dynamic base plate and the fixed plate is 3. 2. 1. 1 Inspection method
Put the dynamic small plate in a state of integration according to the provisions of 5.4.1.2.2 of JB2570, and measure the distance readings of the two points in the same area at the 12 measuring points shown in 1, and calculate the difference between the maximum and minimum distance quotients. Approved by the Ministry of Machinery Industry of China in 199622, implemented in 1556-07-01. 3.2.1.2 Public requirements are in accordance with Appendix 3 of GB118. 3.2.2 Parallelism between pulleys 3.2.2.1 Inspection method JH/T8378-1996 Put the dynamic seat plate in the ground position, and measure the inner distance between the pulleys at the dynamic position according to 5.4.12.3.1 of B2670. Difference, see bacteria 2. Medical 2
3.2.2.2 Tolerance value is taken from Appendix 3 of 847 level
3.2.3 The coincidence degree between the positive chamber egg carrier and the industry piston cup vehicle line, 3.2.3.1 Test method
Installed in the injection chamber hole, the test sample representing the light hole piercing line, the test sample last week customized product indicator, lost JB267 pen 5.4.4.2 specified method, respectively, on the injection active ink fiber -A and Nai, meet the measurement on the carrier surface, see world 3). On each carrier surface, the maximum value of the reading that can be used is 1/2, which is the coincidence degree difference on the shielding surface.
Intersection stroke
3.2.3.2 Tolerance
Tolerance is (+,1181) in the table 9 level,3
4 Inspection planbzxZ.net
JB/T 83781996
4.1 When the measurement characteristics of a measurement method are better than the force method provided in this standard, it is allowed to use this measurement method, but its accuracy should not be lower than the accuracy shown in this standard.
4.2 Precision inspection should be carried out according to the provisions of Section 3 after the air reversal test of the press. 4.3 Before inspection, the press must be installed on an appropriate foundation and leveled according to the manual. It is required that the horizontal adjustment of the surface of the fixed seat plate does not exceed the horizontal adjustment. 0,3
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