JB/T 9955.3-1999 This standard is a revision of ZB J62 005-87 "Technical conditions for radial forging machines". This standard is part of the JB/T 9955 "Radial forging machine" series of standards. This series of standards includes the following three parts: JB/T 9955.1-1999 Types and basic parameters of radial forging machines JB/T 9955.2-1999 Accuracy of radial forging machines JB/T 9955.3-1999 Technical conditions for radial forging machines This standard specifies the technical requirements, test methods, acceptance rules, as well as marking, packaging, transportation and storage of radial forging machines. This standard is applicable to vertical and horizontal radial forging machines for hot forging of ferrous or non-ferrous metals with round and square sections. This standard was first issued in April 1987. JB/T 9955.3-1999 Technical requirements for radial forging machines JB/T9955.3-1999 Standard download decompression password: www.bzxz.net

ICS 25.120.10
Machinery Industry Standard of the People's Republic of China
JB/T9955.3-1999
Radial Forging Machine
1999-05-14 Issued
Technical Conditions
2000-01-01 Implementation
State Bureau of Machinery Industry
JB/T995S.3—1999
This standard is a revision of ZB162005—57 Technical Conditions for Radial Forging Machines. This standard is basically consistent with the content of ZB162005—87, and has only been re-edited according to relevant regulations. This standard is implemented from January 1, 2000. This standard replaces ZBJ62005-87 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Standardization of Pressing Machinery. The responsible unit for the chapter of this standard is Liaoyang Pressing Machine Tool Factory. This standard was first issued in April 1987.
1 Scope
Machinery Industry Standard of the People's Republic of China
Technical Conditions for Radial Forging Machines
JB/T9955.3--1999
Replacement ZBJ62005-B?
This standard specifies the technical requirements, test force method, acceptance rules, and marking, packaging, transportation and operation of radial forging machines. This standard applies to vertical and horizontal radial forging machines (hereinafter referred to as radial machines) for hot forging of ferrous or non-ferrous metals with cross-section and center-loaded surfaces. 2 Referenced Standards
The following standards contain texts that are exempted from inclusion and constitute the provisions of this standard through reference in this standard: When this standard is published. The versions shown are all valid. All standards will be revised. All parties using this standard shall explore the possibility of using the latest version of the following standards. GHST: 1184I996
GB/T 3766—1983
GB/T 5226.1—1996
GB/T79321987
GB/T J33061991
JR.T1829-1997
/3623—198-4
JE/T 8356.1—1996
JD/T 9955.11999
JB/T 9955.21999
3 Technical requirements
Tolerances of shape and position, tolerance values
Technical components for hydraulic systems
Electrical equipment for industrial machinery Part 1: General technical conditions General technical conditions for pneumatic systems
General technical conditions for forging and pressing machinery
Measuring methods for noise of forging machinery
Technical conditions for machine tool packaging
Types and basic parameters of radial forging machines
Precision of radial forging machines
3.1 The radial forging machine shall comply with the provisions of this standard and JB/T 9955.1 and be manufactured according to the drawings and technical documents approved in the prescribed order. 3.2 The performance, basic parameters and precision of radial forging machines 3.2.1 The radial forging machine shall comply with the provisions of JB/T 9955.1. 3.2.2 The precision of radial forging machines shall comply with the provisions of JB/T 9955.2. 3.2.3 The operation of various specifications of radial forging machines shall be sensitive, accurate and predictable, and there shall be no abnormal phenomenon within the prescribed test specifications. 3.2.4 The radial forging machine shall have an overload protection device. 3.2.5 After a working cycle, the radial forging machine shall reliably stop at the original position (loading and unloading position), and the radial shaft buffer device of the radial forging machine shall be sensitive and reliable.
3.3 External quality
3.3. The appearance quality of the radial forging machine shall comply with the relevant provisions of B/T1829. 3.3.2 The paint quality of the radial forging machine shall comply with the provisions of the relevant standards. 3.3.3 After the external surface of the radial forging machine is cleaned of molding sand, sticky sand, sand and scarring, it shall be checked with a 500mm flat ruler. The surface flatness error shall not be greater than -3mm.
Approved by the State Administration of Machinery and Equipment Industry on May 14, 1999 and implemented on January 1, 2000
JB/T955.3-19
3.3.4 The radial forging machine's satin, chain and welded parts shall comply with the standards and regulations, the drawings approved by the rent letter and the provisions of the technical documents. 3.1.5 The radial roundness of the flywheel shall be lower than the 9 sharp guessing requirements specified in Table 82 of GB/T 1184-7996, and the end face windage shall not be lower than the hand GB/ The 6-level pain requirement specified in Table B7 of T1184-1996. 3.4 Assembly quality
3.4.1 The scraping points of the work surface of the shaft ratio should be evenly distributed, and the matching parts (or inspection partners) should be used for color inspection. The average calculation within the area of ​​300cm (when less than 300cm, the actual area is calculated). The number of contact points within the area of ​​25×25mm meets the requirements of Table 1. The scraping points of the bearing should be inspected within the effective working surface (not less than 120°1). The machine vibration method is used to check the working conditions of the bearing or sleeve. The contact is evenly distributed. The cumulative value of the contact area on the shaft of the bearing or sleeve should not be less than 0% of the bearing. Scrape the contact situation of the bearing or sleeve and check the actual working position (scratch the bearing seat) Table 2
method over-point effect
34.2 The working surface of the guide rail is scraped and evenly polished, and the matching [or inspection plate] is used for color inspection. The average of the surface within 300cm is calculated [when it is less than 300cm*, the average of the actual contact area is calculated 3 times the average of the actual contact area per (25×25) mm. The number of contact points within the area meets the requirements of Table 2: When the guide rail is processed by mechanical processing, the contact situation is checked by the negative contact method. The contact is evenly distributed, and the contact area is not less than 70% in the length of the guide rail, and not less than 50% in the width of the guide rail. Table 2 ||t t||Guide machine installation degree
Contact efficiency
Determine the contact condition of the single piece by using the inspection plate to check the contact condition. When installing, the upper half of the guide rail and the movable surface of the head should be in line with the fit. The 0.03m feeler gauge should not be inserted. The clearance between the two sides of the bed rail and the two sides of the chuck should meet the requirements of Table 3.
Matching length
>1000r-[600
3,4.3 The axial misalignment of the gear should not exceed the requirements of Table 4. 2
Same position
Pinion wheel depth
>5G~150
JB/T 9955.3—1999
Center Norbert
3.44 Flywheels, transmission gears, and pulleys shall be subjected to a balance test and correction. The allowable unbalanced small torch shall be (1: Calculation: f =
or: M—allowable unbalanced torque, g
speed, rad/s;
Gweight, &
3.5 The action of the clutch, brake, self-magnetic controller and hydraulic pressure shall be smooth and coordinated mm
3.6 The temperature rise of the rolling axis of the radial forging machine shall not exceed 40°C, and the maximum temperature shall not exceed 70°C.
3. The electrical, pressure, sliding and pneumatic devices of the radial forging machine shall ensure that the lubricating parts can be lubricated normally without seepage. The lubricating oil shall be activated. 3.7.2 The pressure system of the radial forging machine shall comply with the requirements of GB.T3766, and the pneumatic system shall comply with the requirements of GB,T7932. 3.7.3 The temperature rise of the hydraulic oil and lubricating oil shall not be greater than 35°C, and the maximum temperature shall not be higher than 60°C. 3.7.4 The arrangement and layout of the lubrication, cooling and pneumatic pipes shall be complete. There shall be no leakage, water leakage or air leakage. 3.7.5 The electrical equipment of the radial forging machine shall comply with the provisions of GB5226.1 and the "High Voltage Electrical Operation Regulations". 3. The noise level of the radial forging machine during idling operation shall not exceed 90B (A). The noise measurement method shall comply with the provisions of JB/[3623. 3.9 The clarity of the radial forging machine shall comply with the provisions of the relevant standards. 4 Test methods and acceptance rules
4. Each radial forging machine shall be inspected and qualified by the quality management department of the manufacturer before it can leave the factory. Under special circumstances, the company may also accept it after the user agrees. www.bzxz.net
4.2 Radial forging products shall be inspected and tested according to the following items: a) Inspection of type and basic water parameters
b) Idle running test:
e) Load test (or 1 test)
d) Prediction test.
4.2. Inspection of type and basic load shall be in accordance with the provisions of JB.T9955.1 and the requirements of drawings. 4.2.2 Idle running test
Each radial forging machine shall be subject to an idle running test) The idle running test time of the radial forging machine shall not be less than 4, and the continuous running time of the automatic waiting shaft stroke hall shall not be less than 26.
b) After the idle running test, the temperature rise of each part of the radial forging machine shall meet the requirements of 3.6 and 3.73, M
JB/T 9955.3—1999
) The gear transmission of the radial forging machine and the electrical, pneumatic and other parts should make uniform sounds when working, and there should be no irregular impact or periodic screaming.
d) The noise of the radial forging machine should comply with the provisions of 3.8.
e) The control mechanism should be accurate, sensitive and reliable: the limit protection device should be reliable.
4.2.3 Load test (or working test)
4.2.3. [Each radial forging machine is subjected to a load test with nominal pressure (the number of parts should not be less than two during the test) a) All mechanisms should move fully and smoothly when fully loaded: b) When a load indicating device is installed, its correctness of operation should be checked. 4.2.3.2 The correctness and reliability of the overload protection device should be evaluated according to the design requirements. 4.2.4 Degree inspection
4.2.4.! Each radial forging machine shall be inspected and tested before and after the idle operation, and no adjustments shall be made to the machine and parts that may affect the change during the precision inspection. The service inspection or daily average shall not be lower than the requirements of JB/T9955.2. 4.2.4.2 The actual measurement data of the precision inspection after the service inspection shall be recorded in the qualification certificate. 5 Marking, die packaging, transportation and storage
5.1 The label of the radial forging machine shall be fixed in a conspicuous position and shall comply with the provisions of GB 1330M. 5.2 The protection of the radial forging machine shall comply with the provisions of the relevant standards. 5.3 The packaging of the radial forging machine shall comply with the provisions of JB/T8356.1. 5.4 Each radial forging machine shall be accompanied by the following technical documents: a) Qualification certificate:
b) Packing list:
c) Instruction manual.
5 Store the forging machine in a ventilated, rainproof place.
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