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Machinery Industry Standard of the People's Republic of China
JB/T8601.1-1997
Roller Lathe
Published on August 18, 1997
Technical Conditions
Implemented on January 1, 1998
Ministry of Machinery Industry of the People's Republic of China
JB/T8601.1-1997
The format and narrative method of this standard are in accordance with the provisions of GB/T1.1-1993 "Guidelines for Standardization Work Unit 1: Rules for Drafting and Presentation of Standards Part 1: Basic Provisions for Standard Writing" and JB/54001.5-92 "Technical Conditions Standard for Metal Cutting Machine Tool Standard Writing".
This standard is a concretization and supplement to GB9061-88 "General Technical Conditions for Metal Cutting Machine Tools" and other standards: This standard is proposed by the National Technical Committee for Metal Cutting Machine Tool Standardization. This standard is under the jurisdiction of Wuhan Heavy Machine Tool Research Institute. This standard was drafted by: Qiqihar No. 1 Machine Tool Plant, Shanghai Heavy Machine Tool Plant, Qinghai Heavy Machine Tool Plant, Spark Machine Tool Plant, Tianjin No. 2 Machine Tool Plant.
1 Scope
Machinery Industry Standard of the People's Republic of China
Wheel Lathewww.bzxz.net
Technical Conditions
This standard specifies the requirements for the manufacture and acceptance of roll lathes. JB/T 8601.1-1997
This standard applies to roll lathes with a maximum workpiece diameter of 400~2000mm and a maximum workpiece length of up to 10000mm. 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, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T 5226.1—1996
GB 65761986
GB 9061—1988
GB 157601995
ZBJ50 003—1988
ZBJ500041988
ZBnJ50008.1—1988
ZBnJ50008.3—1988
ZBJ500161988
3 General requirements
Electrical equipment of industrial machinery Part 1: General technical conditions Machine tool lubrication system
General technical conditions for metal cutting machine tools
General technical conditions for safety protection of metal cutting machine tools Determination of cleanliness of metal cutting machine tools
Determination of sound pressure level of noise of metal cutting machine tools Metal cutting machine tools| |tt||General Technical Conditions for Machined Parts
General Technical Conditions for Assembly of Metal Cutting Machine ToolsGeneral Technical Conditions for Hydraulic Systems of Metal Cutting Machine ToolsWhen accepting machine tools according to this standard, the remaining acceptance items in GB9061, ZBnJ50008.1, ZBnJ50008.2, ZBnJ50008.3 and other standards that are not specified in this standard must be inspected at the same time4 Accessories and Tools
4.1 The following accessories and tools shall be supplied with the machine:a) Special tools, 1 set:
b) Adjustment shims, anchor bolts, nuts, washers for installation, 1 setc) Lubricating oil gun, 1 piece.
4.2 The following special accessories may be supplied according to agreement:a) Center stand
b) Center with special cone angle:
c) Threading device;
d) Tapering device:
e) Milling device.
Approved by the Ministry of Machinery Industry on August 18, 1997
Implemented on January 1, 1998
5 Safety and Health
JB/T8601.11997
5.1 The slide and tailstock should be equipped with limit position safety devices. 5.2 The slide of the wire dragging mechanism and the exposed lead screw should be equipped with reliable anti-iron chip devices. 5.3 Both ends of the guide rails where the saddle, slide, tailstock lower body and base are combined should be equipped with protective scrapers. 5.4 Appropriate temperature measurement points should be set at the spindle bearing. 5.5 Inspect the machine tool noise according to the provisions of ZBJ50004. The machine tool noise measurement should be carried out under the conditions of low, medium and high speed of the main motion forward and reverse and idling at medium speed of the feed motion. The sound pressure level of the whole machine noise shall not exceed 85dB (A). 5.6 The handwheels and handles of the horizontal and vertical slides are commonly used handles, and their operating force should be uniform within the travel range and shall not exceed 120N; other handwheels and handles shall be assessed as uncommon, and their operating force shall not exceed 160N; the operating force of the handle for tailstock adjustment shall not exceed 200N5.7 When accepting machine tools according to this standard, the remaining acceptance items in GB15760 that are not specified in this standard, as well as the acceptance items specified in GB/T5226.1, GB6576 and ZBJ50016 and other standards must be inspected at the same time. 6 Processing and assembly quality
6.1 The bed, saddle, spindle box, slide box, and tailstock upper body (or tailstock body) are important castings and should be aged after rough machining. 6.2 The main parts of the machine tool that are prone to wear, such as the sliding guide pair, spindle pair, high-speed heavy-load gear pair, etc., should adopt wear-resistant measures that are suitable for their life. 6.3 The guide rails of the saddle and the bed, and the guide rails of the cross slide and the saddle are important guide rails, and wear-resistant cast iron, steel-inlaid guide rails, plastic-coated guide rails, or high (medium) frequency induction fire and other wear-resistant measures should be adopted. 6.4 The following joint surfaces should be evaluated according to the requirements of "important fixed joint surfaces": a) The joint surface of the spliced bed;
b) The joint surface of the spindle box and the bed or the spindle box base; c) The joint surface of the upper and lower bodies of the tailstock:
d) The joint surface of the saddle and the slide box;
e) The joint surface of the feed box and the bed or the spindle box base; f The joint surface of the spindle end face and the disc:
g) The joint surface of the rack, gear ring and the base; h) The joint surface of the light bar bracket and the base.
Important fixed joint surfaces should be tightly combined. After tightening, they should not be inserted when checked with a 0.04mm feeler gauge, but the local (2~3 places) insertion depth should not exceed 20mm. The length of the inserted part is less than or equal to 1/5 of the length of the joint surface, but if it is not more than 100mm, it will be counted as one place. 6.5 The guide pairs of the saddle and the bed, the cross slide and the saddle, the longitudinal slide and the force frame should be assessed according to the requirements of "static pressure, sliding (rolling) guides" 6.6 The guide pairs of the tailstock and the bed, the center frame and the bed should be assessed according to the requirements of "displacement guides". 6.7 The reverse idle travel of the handwheel and handle with a scale device should not exceed the provisions of Table 1 Table 1
Handwheel and handle parts
Reverse idle travel
6.8 The faceplate and pulley must be subjected to static balance test and calibrated. 6.9 Check the cleanliness according to the provisions of ZBJ50003. Slide plate
6.9.1 The internal cleanliness of the spindle box and slide box shall be inspected by weight, and its impurities and dirt shall not exceed 400mg/L (spot check). 6.9.2 The cleanliness of the hydraulic oil of the hydraulic system shall be inspected by weight, and its impurities and dirt shall not exceed 200mg/L (spot check). 2
JB/T8601.1-1997
6.9.3 Other parts shall be inspected by visual inspection and hand feel, and there shall be no dirt. 6.10 The following important locating pins shall be inspected by color coating, and their contact length shall not be less than 60% of the working length a) locating pins for bed-to-bed connection;
b) locating pins for spindle box and base:
c) locating pins for spindle box base and bed; d) locating pins for bed saddle and slide box;
e) locating pins for feed box and bed;
f locating pins for spindle front and rear bearings and spindle box body: g) locating pins for connecting the light bar bracket with the base; h) locating pins for connecting the light bar with the feed box: i) locating pins for connecting the long light bar in sections:
i) locating pins for rack and bed.
7 Machine tool idle operation test
7.1 The main motion mechanism of the machine tool shall be operated in sequence from the lowest speed, and the operation time of each speed level shall not be less than 2 minutes. The machine tool with stepless speed regulation can be operated at low, medium and high speeds. The maximum speed operation time should not be less than 1h, so that the spindle bearing reaches a stable temperature. Measure the bearing temperature and temperature rise near the spindle bearing, and the value should not exceed the provisions of Table 2. Table 2
Bearing type
Sliding bearing
Rolling bearing
The feed mechanism should be tested for idle operation at low, medium and high feed rates (feed speeds), which can be carried out simultaneously with the main motion test. The test time for each gear should not be less than 2min.
The fast moving mechanism should be tested for fast movement. The number of reciprocating times of the tailstock, saddle and slide plate test should not be less than three times, and the stroke should not be less than half of the full stroke.
7.2 The actual deviation of the spindle speed and feed rate of each level of the step transmission should be within the range of -2%~+6% of the indicated value on the nameplate; the actual deviation of the spindle speed and feed rate of the stepless transmission should not exceed ±10% of the indicated value on the nameplate. 7.3 Use an appropriate speed to start and stop the main motion and feed motion in the forward and reverse directions for five times in a row to test the flexibility and reliability of the action.
7.4 The idling power of the main transmission system shall be assessed in accordance with the design requirements. 8 Machine tool load test
This series of machine tools shall be subjected to the following load tests. When the manufacturer does not have the test conditions, it can be carried out at the user's factory with the user's consent. a) Machine tool operation test with maximum workpiece weight (spot check); b) Machine tool main transmission system maximum torque test: c) Machine tool maximum cutting resistance test:
d) Machine tool main transmission system maximum design power test (spot check): e) Machine tool main transmission system short-term test exceeding 25% of the maximum torque (spot check); f Machine tool short-term test exceeding 25% of the maximum cutting resistance (spot check). 3
JB/T8601.1-1997
8.1 The machine tool shall be tested for operation with the maximum workpiece weight, and the operation shall be carried out at a low speed and the speed specified in the design. The operation time shall not be less than 30 minutes. 8.2 The maximum torque, maximum cutting resistance and maximum design power test of the main transmission of the machine tool shall be tested. The test piece materials, cutting specifications, etc. shall be in accordance with the design documents.
8.3 The main transmission system of the machine tool shall be tested for a short time exceeding the maximum torque and maximum cutting resistance specified in the design by 25%. The test time shall not be less than 1 minute. For machine tools larger than 1600mm, only the maximum torque and maximum cutting resistance tests shall be performed. 8.4 The slide box equipped with a feed overload protection device shall be safe and reliable during the load test. When the longitudinal feed resistance reaches 125% of the maximum cutting resistance, it shall be able to work normally for a short time, and it shall stop working when it exceeds 125%. After the overload test, the overload protection device shall generally be adjusted back to the full load position.
Machine tool precision inspection
Machine tool precision inspection shall be carried out in accordance with relevant standards. 9.2
The parallelism of the spindle axis to the movement of the slide, and the equal heights of the two centers of the spindle and tailstock shall be inspected at medium speed and stable temperature. The test specifications for working precision inspection shall be in accordance with the design documents. 9.3
The maximum allowable value of the surface roughness R of the test piece during working precision inspection is 3.2um. People's Republic of China Mechanical Industry Standard Technical Specifications for Roller Lathes JB/T8601.1-1997 Published and issued by the Mechanical Science Research Institute Printed by the Mechanical Science Research Institute (No. 2 Shouti South Road, Beijing: Postal Code 100044)* Format 880×1230 Printing Sheet 1/2 Word Count 10000 First Edition October 1997 First Printing October 1997 Print Quantity 1-500 Price RMB 500 97-216 Mechanical Industry Standard Service Network: http/AvwwJB.ac.cnL66-1098 /AF
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