JB/T 9912.3-1999 JB/T 9912.3-1999 Technical requirements for optical profile grinding machines JB/T9912.3-1999 Standard download decompression password: www.bzxz.net

ICS 23,080.50
Machinery Industry Standard of the People's Republic of China
JB/T 9912.1-9912,3—1999
Optical profile grinding machine
1999-05-20 Issued
State Bureau of Machinery Industry
2000-01-01 Implementation
JB/T9912.3-1999
This standard is designed on the basis of ZBⅡJ5502087 "Technical requirements for the acceptance of optical profile grinding machines". This standard is a concretization and supplement of the standards such as (B/19061:1988 Technical Conditions for the Application of Metal Cutting Machine Tools). This standard is consistent with the technical content of ZBJ55020-S7 and is re-edited in accordance with relevant regulations. This standard is part of the JB/T9912 "Optical Profile Grinding Machine Series Standards, which includes the following parts: JB/T9912.1-1999 Optical Profile Grinding Machine Series Model Spectrum JB/T9912.2-1999 Optical Profile Grinding Accuracy Inspection JR9912.3-1999 Technical Conditions for Optical Profile Grinding Machines. The standards that match the foreign standards are:
GB/T7924-1987 Optical Profile Grinding Machines This standard will replace 2B yuan J5S020-87 from the date of implementation. : This standard was proposed by the National Technical Committee for Metal Cutting Machine Standardization. The standard is issued by the National Metal Cutting Machine Standardization Technical Committee. Machine Tool Standardization Technical Committee Grinding Machine Branch 1. The responsible drafting unit of this standard: Shanghai Third Machine Tool Factory, this standard was first issued in December 1987, 14
1 Standard
Machinery Industry Standard of the People's Republic of China
Technical Conditions for Optical Curve Grinding Machines
This standard specifies the requirements for the manufacture and acceptance of optical curve grinding machines. The standard is applicable to optical curve grinding machines with a maximum grinding length of 100~320mm. 2 Referenced Standards
JR/T9912.3—1909
Replaces ZBn[552t—B7
The new provisions contained in the following standards are those that are referenced in this standard and constitute the provisions of this standard. When this standard is published, the versions shown are all valid. All standards will be revised. Parties using this standard should carefully consider the possibility of using the latest version of the following standards. GB/T 1031 — 1995 | | tt | | GB/T 1185 — 1989 | | tt |
JBT9874-1999
JB/T 9877.--1999
IR/T 99E2.2.:[999
.1月/[10051--1999
3橙版要求
Surface quality, numerical values
Optical parts surface spots
1Industrial machinery and electrical equipment Part 1: General technical conditions General cutting and cutting general connection technical conditions General cutting machine tool parts grinding wheel guard safety protection technical requirements General cutting machine tool parts general technical conditions metal rust Technical conditions for the use of cutting machine tools
Determination of the cleanliness of cutting machine tools
Precision inspection of optical profile grinders
Technical conditions for the use of fatigue systems of metal cutting machine tools When accepting machine tools in accordance with this standard, it is necessary to inspect the remaining acceptance items in GB/T9061, JB/19872, JB/T9874 and other standards that are not included in this standard and are not specified in this standard
4 Accessories and tools
4.1 The accessories and tools listed in Table 1 should be supplied randomly. According to the structure or production needs, the accessories and tools listed in Table 1 may be increased. 4.2 Special accessories such as high-precision plotters and universal rotary tables that expand the use performance of machine tools shall be supplied according to user requirements and in accordance with the agreement. Approved by the State Bureau of Machinery Industry on 1299-05-20, 2000-01-01 5.1 The protective cover of the grinding wheel shall comply with the requirements of JB4029, FB/T9912.3—1999, and can be used to balance the grinding wheel, balance the grinding wheel, and adjust the cutting angle. 5.2: The guide surface of the machine tool should be well protected and reliable and durable. 5.3 The movement of the upper table should be equipped with a travel limit cover. 5.4 The electrical and drip pressure system components should comply with the safety arrangements of GB/T5226.1 and J/10051 respectively. 5.5. The machine tool shall be equipped with dust collection device.
5.6 The safety protection of the machine tool shall comply with the provisions of OB15760. 6 Processing and matching quality
The grinding wheel frame slide shall be made of resistant iron or soft steel. 6.2 The following important castings must be aged after processing: a) bed; b) column: c) workbench: d) grinding wheel frame: d) grinding wheel frame slide seat.
6.3 The mating surfaces between the grinding wheel channel body shell and the sliding rotary seat, the grinding wheel frame body shell and the lower rotary library, and the lower rotary and the upper drag plate shall be assessed according to the requirements of the “shift guide rail”.
6.4 The following joint surfaces shall be assessed according to the requirements of the “special fixed joint surfaces”: a) the joint surface between the fixed sleeve and the bed;
b) the joint surface between the middle plate and the solid column; bzxZ.net
c) the joint surface between the drag plate and the bed.
6.5 The motor of the grinding wheel axis shall be dynamically balanced and calibrated. After calibration, the residual unbalance amplitude of the grip shall not exceed 0.003mm.
66 The operating force of the handwheel and handle shall be assessed according to the following provisions: a) The starting handwheel (including the hydraulic retracting handle) shall be assessed according to the requirements of "handwheel with belt": b) The adjustment (adjustment) wheel shall be assessed according to the requirements of "handwheel without belt". 16
JB/T9912.3-1999
6.7 When the wheel frame is locked, the allowable movement of the nut shall not exceed 0.003mm6. The grinding wheel spindle and grinding wheel chuck shall meet the relevant provisions of JB/T9874. The cleanliness requirements of each major component [such as grinding wheel spindle, hydraulic components, etc.] shall be assessed according to the relevant regulations of each T\ factory.
6, 1 0Optical system quality:
"Optical projection is clear and uniform, without reflection that disturbs vision. Optics should not have visible bubbles, pitting, scratches and other defects. The optical system should be reliably sealed: b) The inner cavity where optical parts are installed should be black and matte:) The optical quality of the machine tool should comply with the provisions of GB/T1185. 7 Machine tool idle operation test
7, 1: The idle operation time of the machine tool shall not be less than 4h: After reaching a stable temperature, measure the temperature rise at the outer wall of the bearing sleeve and it shall not exceed 20℃: Measure in the tank, the temperature and temperature rise of the oil shall comply with the provisions of JB/T1005I. 2 The grinding fixture should operate evenly within the range of 50~200m. 7.3 The machine tool should be within the working range, there should be no shock at low speed and no impact at high speed. 8 Machine tool load test
This series of machine tools does not undergo load test.
9 Precision inspection of machine tools
1 The precision inspection of machine tools shall be carried out after the idle running test. Precision inspection shall be carried out in accordance with relevant standards such as JBT9912.2. 9.2 The working precision P1 in IB/T9912.2-1999 shall be inspected when the machine tool reaches a stable speed. 9.3 The rate cutting specification during the working precision inspection shall be in accordance with the manufacturer's regulations. 9.4 The surface roughness of the test piece for working precision inspection shall be in accordance with the provisions of GB/T1031-1995, and its R value shall not be less than 0.05μ㎡17
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