JB/T 10142-1999 Technical requirements for ultrasonic polishing machines
Some standard content:
JB/T 10142—1999
Ultrasonic polishing machines have been produced in my country for more than 20 years. In recent years, the number of products produced has increased, and the number of manufacturers has increased. With the development of production, it is necessary to formulate a practical standard to regulate the entire process of production and sales. This standard is formulated on the basis of extensively soliciting opinions from production and user units and collecting a large amount of information. This standard is proposed and managed by the National Special Processing Machine Tool Standardization Technical Committee. The drafting units of this standard: Suzhou Electric Processing Machine Tool Research Institute, Beijing Electric Processing Research Institute, Wenzhou Dongfeng Seiko Electronic Instrument Factory, Taizhou Hailing Electric Appliance Factory.
The main drafters of this standard are Yu Zhisan, Ji Renxing, Lin Wenping, and Gu Yajun. 224
1 Scope
Machinery Industry Standard of the People's Republic of China
Ultrasonic buffing machines:
Technical conditions
Ultrasonic buffing machines-Technical requirements
JB/T 10142-1999
This standard specifies the classification, technical requirements and test methods of ultrasonic buffing machines, as well as the marking and instruction manual, packaging and transportation technical requirements of ultrasonic buffing machines.
This standard applies to all types of ultrasonic buffing machines for polishing molds and parts (hereinafter referred to as polishing machines). 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 are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB191--1990 Pictorial symbols for packaging, storage and transportation
GB/T5226.1-1996 Industrial machinery and electrical equipment Part 1: General technical conditions GB9969.1--1998T. General provisions for instruction manuals of industrial products GB/T13306-1991 Signs
GB/T14896.4-1994 Terminology of special processing machine tools Ultrasonic processing machine tools GB/T16769--1997 Method for measuring sound pressure level of metal cutting machine tools JB/T7445.2·1994 Method for compiling models of special processing machine tools JB/T8356.1-1996 Technical conditions for machine tool packaging JB/T8356.3-1996 Medium and small wooden boxes for machine tool packaging 3 Definitions
This standard adopts the following definitions.
3.1 Handheld ultrasonic polisher
An ultrasonic polisher that is operated by a handheld tool system during polishing. 3.2 Non-handheld ultrasonic polisher
An ultrasonic polisher that does not require a handheld tool system to operate during polishing. 3.3 Tool system
An acoustic system that can generate resonance under the action of ultrasonic frequency electrical energy, including a transducer or a combination of a transducer and a horn, a tool chuck and a tool head.
3.4 Tool head
A tool with or without abrasive that can be directly applied to a workpiece for polishing. 3.5 Tool chuck
A fixture used to hold a tool head.
3.6 Electric box
Approved by the State Bureau of Machinery Industry on October 8, 1999, and implemented on March 1, 2000
JB/T10142--1999
Electrical device including ultrasonic power supply and control system. 3.7 Definitions of ultrasonic polishing, ultrasonic polishing machine, ultrasonic electric power, ultrasonic power supply, ultrasonic power supply working frequency, ultrasonic transducer, horn, etc. are as follows GB/T 14896.4. bzxZ.net
4 Classification
4.1 Model
The model compilation method of polishing machine shall comply with the provisions of JB/T7445.2. Model example:
4.2 Basic parameters
Other characteristic codes, "1" for "handheld", "2" for "non-handheld" main parameters, maximum ultrasonic power 50W
Series code, ultrasonic polishing machine
Group code, ultrasonic polishing machine tool
Class code, ultrasonic machining machine tool
Basic parameters of polishing machine are shown in Table 1.
Ultrasonic power W
Working frequency kHz
4.3 Type
10.20,30,50,100150,200,250,300,400,50020~40
Polishing machines can be divided into handheld and non-handheld types according to the different operation modes of the tool system. 5 Accessories and tools
5.1 The following accessories and tools should be supplied with the polishing machine: a) Amplitude transformer: 1 set;
b) Tool head: 1 set;
c) Tool chuck: 1 set;
d) Fastening tool: 1 set.
5.2 Special accessories can be supplied according to the agreement.
6 Technical requirements
General requirements
The polishing machine should be able to work normally under the following environmental conditions: a) Atmospheric pressure: 86～106kPa;
b) Temperature T: 10～+40℃;
c) Relative humidity of air is not more than 90%; d) No corrosive, flammable or explosive gas. 226
6.2 Appearance
JB/T 10142—1999
6.2.1 The outer surface of the electric box should not have protrusions, depressions, roughness, obvious damage and other defects not specified in the drawings. The electric box body should be treated with rust prevention.
6.2.2 The switches, knobs, buttons, etc. on the electric box panel should be easy to operate and should comply with the provisions of 10.2 of GB/T5226.1-1996. The characters indicating the functions should be clear and correct. 6.3 Processing and assembly quality
6.3.1 The various parts of the transducer should be inspected according to the design requirements; the assembled transducer should meet the performance requirements. 6.3.2 The screws at the tool chuck should have sufficient strength, and the fatigue strength of the screws and tool chuck materials should be considered to prevent the tool chuck from loosening under long-term ultrasonic vibration.
6.3.3 The design, layout and wire color selection of the electrical circuit of the polishing machine shall comply with the provisions of GB/T5226.1. 6.3.4 The circuit board and connectors shall be well connected and not loose. The solder joints on the circuit board shall be smooth and the welding shall be firm, without any cold solder joints or leaking solder joints.
6.4 Working performance
6.4.1 When the power supply voltage is 0.9~~1.1 times the rated voltage and the frequency is 0.98~~1.02 times the rated frequency (50Hz), the polishing machine shall be able to meet the requirements of working performance.
6.4.2 The maximum ultrasonic power output of the polishing machine shall meet the design requirements. When working in any working state, the change in ultrasonic power shall be within ±10%.
6.4.3 When the polishing machine works continuously for 1 hour under the condition of outputting the maximum ultrasonic electric power, the surface temperature of the transducer housing shall meet the following requirements: a) The handheld polishing machine shall not be greater than 60℃; b) The non-handheld polishing machine shall not be greater than 70℃. 6.4.4 The polishing machine shall not make abnormal screams in the non-polishing state, and the noise sound pressure level shall not be greater than 83dB(A) in the polishing state. The measurement method of the noise sound pressure level shall comply with the provisions of GB/T16769. 6.4.5 The polishing machine shall be tested for polishing ability, and the minimum roughness of the surface of the polished specimen shall meet the following requirements: a) Flat surface: Ra≤0.025 μm;
b) Bottom surface of the cavity or surface in the gap: Ra≤o.1um. 6.4.6 The polishing machine shall be tested for polishing efficiency according to the following conditions and requirements: Specimen: Material Cr12, polishing surface is flat surface, surface roughness Ra≥1.6μm, polishing area S≥4cm. Requirements: The surface roughness of the polished specimen is Ra≤0.4μm, and the polishing efficiency is not less than 0.25cm/min. 6.5 Safety protection
6.5.1 The power lead connecting the ultrasonic power supply to the transducer should be connected reliably, and it should be ensured that there is no risk of electric shock when the lead is disconnected. 6.5.2 The insulation and withstand voltage performance between the conductive part of the power lead of the polishing machine and the shell should comply with the provisions of GB/T5226.1. 6.5.3 The electrical box and tool system of the polishing machine should be reliably grounded, and the continuity of the protective grounding circuit should comply with GB/T5226.1. Provisions 7. Test method
The test method for the polishing machine shall be carried out in accordance with the provisions of Table 2. 227
Inspection items
Power supply parameter inspection
Working performance inspection
Safety protection inspection
High temperature operation test
Transport vibration test
JB/T10142--1999
Use ultrasonic power meter to check the ultrasonic power supply standard of the polishing machine during polishing and non-polishing, and the ultrasonic power and its change at the input end of the tool system
According to the design requirements of the polishing machine, check the following working performance: a) Adjust the AC power grid voltage to 110% and 90% of its rated value respectively, and run continuously for 2h. It should be normal.
b) Check the temperature of the transducer (housing) according to the provisions of 6.4.3; c) Measure the noise according to the provisions of 6.4.4. d) Check the polishing ability and polishing efficiency according to the provisions of 6.4.5 and 6.4.6. Before the polishing machine is powered on, perform the following Item inspection: a) Conduct continuity test of protective grounding circuit according to 20.2 of GB/T5226.1-1996; b) Conduct insulation resistance test according to 20.3 of GB/T5226.1-1996; c) Conduct withstand voltage test according to 20.4 of GB/T5226.1-1996; d) Check the safety of transducer leads when positive and negative poles are disconnected according to 6.5.1. Connect simulated load to the output terminal of ultrasonic power supply, output rated power, run at 40℃±2℃ for 24h, the system should work normally.
The polishing machine packaged according to factory conditions shall be subjected to transportation vibration test in one of the following ways: a) Vibration test bench: simulate automobile transportation vibration, the vibration time is 3h; b) Automobile transportation test: the packaged polishing machine is fixed on the automobile and travels 100km at a speed of 30-40km/h on the blue-grade road surface.
After the test, the appearance and structure shall be inspected. The outer packaging box shall not be damaged or deformed. The inner packaging parts shall not be loose, damaged or displaced. After a slight adjustment to the electrical box (such as pressing the circuit board), the machine can be turned on and work normally. The electrical performance shall not change.
7.2 High temperature operation test and transportation vibration test shall only be carried out during routine inspection. 8 Signs and instruction manuals
8.1 The polishing machine shall have signs and signs or signs indicating operation and safety in accordance with GB/T13306 and relevant standards. 8.2 The instruction manual shall provide information on use, installation, transportation, storage, repair and maintenance. 8.3 The instruction manual shall have safety content, including the relevant safety protection content that may occur in the polishing machine and the safety matters that should be paid attention to during use.
8.4 The preparation method of the instruction manual shall comply with the provisions of GB9969.1. The random technical documents of the electrical system shall comply with the provisions of GB/T5226.1.
9 Packaging and Transportation
9.1 The packaging of the polishing machine shall comply with the provisions of JB/T8356.1 and JB/T8356.3; the packaging storage and transportation diagrams shall comply with the provisions of GB191.
9.2 The accompanying technical documents of the polishing machine shall include: instruction manual, certificate of conformity, packing list. 9.3 The packaged polishing machine shall be subjected to transportation vibration test (routine inspection) according to Chapter 7. 228
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