JB/T 9933.3-1999 JB/T 9933.3-1999 Technical requirements for small module gear hobbing machines JB/T9933.3-1999 Standard download decompression password: www.bzxz.net

[C525.080.99
Machinery Industry Standard of the People's Republic of China
JB/T9933.1-9933.3—1999
Small Module Gear Hobbing Machine
Published on 1999-05-20
State Machinery Industry Bureau
2000-01-01 Implementation of the revision of JB/9933.3--1999 Technical Requirements for Production and Acceptance, this standard is only used for editing the relevant provisions of ZBJ56005.3-886 small module gear hobbing machine, and the technical content has been changed. This standard is part of the JB/T9933 series of standards for small module gear hobbing machines, which includes the following parts: JB/T9933.1-1999 small module gear hobbing machine finishing B/E33.2--1999 small module gear hobbing machine precision inspection JB/T9933.3.1999 small module gear hobbing machine technical conditions This standard replaces 6005.38S from July 15, 2009. This standard is proposed by the National Technical Committee for Metal Cutting Machine Standardization. This standard is under the jurisdiction of the Instrumentation Machine Tool Branch of the National Technical Committee for Metal Cutting Machine Tool Standardization. Responsible units: Ningjiang Machine Tool Factory, Shanghai Instrument Machine Tool Factory, Nanjing Technology Equipment Factory, Zhejiang University Machinery Factory. This standard was first issued in April 198.
1 Scope
Standard of the Machinery Industry of the People's Republic of China
Small Module Gear Hobbing Machine
Technical Conditions
This standard specifies the requirements for the production and acceptance of small module gear hobbing machines. JB/T 9933.3—1999
Generation 156005.3—88
This standard is applicable to small module gear hobbing machines with a workpiece diameter of up to 125mm and a maximum module of up to 1.smml: 2 Referenced Standards
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 will be revised. Parties using 4 standards should explore the possibility of using the latest versions of the following standards GB/T9061-1988
GB/T16769—199T
JB/T9872—1999
JB/198741999
JB/T9933.2:1999
3 General requirements| |tt||General technical conditions for metal cutting machine tools
Metal scratching machine tool sound pressure level measurement disk force method General technical conditions for metal cutting machine tool machining parts General technical conditions for metal cutting machine assembly
Small gear machine accuracy inspection
When accepting machine tools according to this standard, it is necessary to frequently inspect the remaining acceptance items in GBT9061, JB/T9872, 3A/T9874 and other standards that have not been integrated by this standard.
4 Hardware and tools
4, 1 In order to ensure the basic performance of the silver gear machine, the following accessories and tools should be supplied randomly: a) Commonly used insert spindle assembly (including the ring and nut on the tool bar modified spindle); b) 1 set of pull rod (or center head) for installing the workpiece spindle; c) 1 commonly used exchange gear (including speed, gear division, feed, etc.); d) 1 set of special wrenches,
1 The other exchange gears are supplied according to the specific needs of the user. 2 The small roller spindle assembly (including the force rod and the pad on the ten-axis) , nut), according to the specific requirements of users. 4.2 Special parts to expand the performance of gear hobbing machine (rolling cutting worm gear parts, tangential method rolling cutting worm gear accessories, white feeding accessories, etc.), to be supplied according to the requirements of the door according to the order, www.bzxz.net
5 Processing and assembly quality
5. The axial feed guide pair of the bed and the axial feed guide pair of the blade holder should be pre-grinded (such as wear-resistant casting, surface rate wedge treatment, inlay National Machinery Industry 1999-05-20 approved 14
2000-01-01 Implementation of
Guide rails, rolling guide rails, etc.》
JB/T9933.3—1999
5.7 After rough machining of important castings such as the bed, axle box, tool holder body, tool holder slide plate, frame, etc., aging treatment should be carried out. 5.3 The joint surfaces of the bed, tailstock, tool holder guide rail, bed and spindle, tool holder and slide plate should not be welded. 5.4 The bed axis feed guide rail and tool holder radial feed guide pair should be assessed according to the requirements of "dynamic guide rail": 5.5 The joint surface between the tailstock and the bed, or crossbeam (or guide rail) should be assessed according to the requirements of "removal of clean rail". 5.6 The joint surfaces between the bed and the main shaft box, the bed and the crossbeam, the tailstock and the slide plate should be welded. "Specially heavy case determination of the joint surface" assessment, 5. The radial feed wheel and handle of the gear hobbing machine should have a grading device, and its concave hollow principle should be designed in accordance with the requirements. 5.8 The operating force of the radial feed wheel and handle of the gear hobbing machine should be about 60N (6kf) within the travel range, and should not exceed 60N (6kf, the operating force of the handwheel and handle such as axial feed should be designed in accordance with the requirements. 5.9 With a fast-moving radial feed mechanism, the repeated positioning degree of the feed end should not exceed the requirements of Table 1. Table 1
Keile type photo
Precision nano
World basic fixed fast handle medical
The daily inspection method for this item is: in a short period of time, make the gantry feed and return 10 times, and take the feed end The algebraic difference between the maximum reading and the minimum reading,
6 Gear Hobbing Machine Idle Running Test
6.1 The gear hobbing machine operation test shall comply with the provisions of GB/T9061, in which the maximum continuous operation time of the hob spindle shall not be less than 60min. When the operation test reaches a stable temperature, measure the bearing temperature and temperature rise near the hob main bearing. 6.2 The deviation range of the hob spindle transfer and the rated value is ±10%. The batch-produced gear hobbing machines are inspected at low, medium and high speeds (spot check). 3. The gear hobbing machine shall be tested first (the test shall be carried out under the idle running conditions of the hob spindle at low, medium and high speeds. The motor, cooling machine and hydraulic motor shall be driven during the measurement. At the same time, The measurement method of the gear hobbing machine noise shall be in accordance with the provisions of GB/T 16769. The sound pressure of the idling noise shall not exceed the following provisions: precision grade, 80dB (A): general grade, 83dB (A) Load test of the machine tool
The load test of this series of machine tools shall be carried out according to the test specification reduced by the design 8 Gear hobbing machine precision test
8.1 The precision test shall be carried out in accordance with JB/T9933.2. A.2 In JB/T9933.2, the geometrical accuracy G4 and G7 items shall be tested when the hob shaft and the workpiece shaft of the gear hobbing machine reach the medium speed and stable temperature. 8.3 The gear hobbing machine 1 The precision test shall be carried out after the idling test. 1. The geometrical accuracy of the machine tool shall be checked before and after the wall test. The measured value of the last precision test shall be recorded in the certificate of qualification.
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