JB/T 7085.1-1993 Guidelines for stator and rotor winding technology of series-excited motors for power tools Part 1 Stator winding technology JB/T7085.1-1993 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
Guidelines for Stator and Rotor Winding Process of Series-excited Motors for Electric Tools Part 1 Stator Winding Process
1 Subject Content and Scope of Application
JB/T7085.1
This standard specifies the technical requirements, process equipment, process methods and quality inspection for the stator winding process of series-excited motors for electric tools. This standard applies to the stator winding process of series-excited motors for electric tools. 2 Reference Standards
Safety of Handheld Electric Tools Part 1 General Requirements GB2900.1 Electrical Terminology Basic Terminology GB2900.25 Electrical Terminology Motor
3 Terminology
The terminology of this standard complies with the provisions of GB2900.1 and GB2900.25. The following terms are applicable only to this standard. 3.1 Stator Winding Machine
Equipment for winding the wire directly into the stator core slot. 3.2 Tensioning device
In stator winding machine, the mechanism for controlling the tension of the wire. 3.3 Sliding wire die
In stator winding machine, the component that makes the wire move along a certain trajectory and slide into the stator core slot. 3.4 Wire lead-out device
In stator winding machine, the component that leads out the wire and winds the wire continuously into the stator core slot. 3.5 Stator core to be wound
The stator core with slot insulation and end insulation brackets placed. Stator core placement frame
In stator winding machine, the component that places and fixes the stator core. 3.7 Inlet
The hole for introducing the wire.
3.8 Outlet
The hole for leading out the wire.
4 Equipment
4.1 General requirements
The stator winding machine must comply with the corresponding standards. 4.2 Equipment integrity
The stator winding machine should be a complete equipment with winding mechanism, tension device, counting device and sliding wire mold. 4.3 Functional requirements
The winding speed of the stator winding machine should be continuously adjustable, and it can start and stop slowly, and has the function of braking when the number of turns counted to the specified number of turns. Approved by the Ministry of Machinery Industry on October 8, 1993
Implementation on January 1, 1994
4.4 Classification
JB/T7085.1-1993
The stator winding machine is divided into automatic winding machine and semi-automatic winding machine. The automatic winding machine has the functions of automatic stator core in place, automatic installation of sliding wire mold, automatic winding, counting and stopping. It has the functions of automatic processing of winding wire ends, unloading sliding wire mold, unloading and other functions. The semi-automatic winding machine is a winding machine that is manual except for automatic winding, counting and stopping. 4.5 Tension device
The conductor tension controlled by the tension device should be adjustable, and the controlled tension range should include the tension required for winding. 4.6 Sliding wire mold
The working surface shape of the sliding wire mold should ensure the smooth sliding of the conductor, and the maximum allowable value of its surface roughness parameter Ra is 0.1μm. 4.7 Wire lead-out device
The arc at the outlet of the wire lead-out device should not be less than R1, the maximum allowable value of the surface roughness parameter Ra is 0.1um, and the surface hardness is above HRC60.
5 Material preparation
5.1 Enameled wire and slot insulation materials must meet the corresponding standards and be qualified products tested according to the test methods specified in the corresponding standards. 5.2 The stator core should meet the requirements of the drawings.
5.3 The slot insulation size and placement should meet the requirements of the drawings and meet the requirements of Article 26.1 of GB3883.1. 5.4 The model and wire gauge of the enameled wire should meet the requirements of the drawings. 5.5 The enameled wire should be wound on a pagoda-shaped wire, and the wire should be placed vertically in a protective barrel. A protective cover shaped like an inverted funnel should be placed above the barrel to prevent the enameled wire from being scattered, collided, and entangled. 5.6 The end insulation bracket should be smooth and flat, without any bending phenomenon, and fit well with the iron core, without causing deformation of the slot insulation. Whether the end insulation bracket is used is determined by the structural design.
6 Winding preparation
6.1 Before winding, check whether the stator core to be wound meets the winding requirements. 6.2 Wire lead-out device and fixture
Assemble the corresponding wire lead-out device and fixture on the stator winding machine according to the specifications of the stator. 6.3 Introducing enameled wire
, use special tools to lead the two enameled wires that meet the requirements of 5.1 and 5.4 from the wire inlet of the stator winding machine to the wire lead-out device, and lead them out from its two wire outlets respectively, and fasten them to a specific fixture. 6.4 Adjust the tension
Adjust the tension to an appropriate degree so that the wound coils are arranged neatly and are moderately tight and loose. The tension can be determined in advance through tests. Wires of different specifications should be subjected to different tensions. 6.5 Adjust the stroke
Adjust the corresponding stroke according to the thickness of the stator core. 6.6 Input program and preset count value
If the stator winding machine needs to input a program, the pre-programmed corresponding program and turn value should be input according to the instruction manual. If only the turn value needs to be set, the turn value should be set according to the instruction manual. 6.7 Trial winding
After the above preparations, 3 to 5 stators should be trial wound for inspection. Only when they meet the requirements can the winding be carried out formally. The winding operation method shall be carried out according to Chapter 7.
7 Winding
7.1 Automatic Winding
JB/T7085.1—1993
Put the stator core to be wound into the conveyor input end of the automatic stator winding machine, press the "Run" button, and the winding machine will automatically load, install the sliding wire mold, wind, count, stop, and handle the wire ends. Unload the sliding wire mold, unload the material, and the automatic winding machine will carry out winding in this way over and over again. 7.2 Semi-automatic Winding
7.2.1 Loading
Install the sliding wire mold in the stator core to be wound, feed it into the stator core placement frame and fix it. 7.2.2 Winding
Press the "Run" button, the winding machine will count the winding according to the predetermined program, and automatically stop and position when the number of turns is reached. 7.2.3 Wire end processing
Cut the enameled wire at the appropriate position between the wire outlet of the wire lead-out device and the coil, and wrap or fix the coil wire end with adhesive tape to prevent the coil from loosening.
7.2.4 Unloading
Remove the stator with the coil wound, remove the wire-cutting die, and put the stator into the workstation. 8 Quality disk inspection
8.1 Number of inspections
To ensure the quality of the stator winding, the stator should be inspected twice, once after the coil wire end is welded to the plug or welded to the high-temperature insulated lead-out wire. Inspect once after dripping paint (or dipping paint). 8.2 Inspection plan
8.2.1 Use a stator comprehensive tester for automatic inspection: measure DC resistance, conduct AC withstand voltage test and pulse voltage test, and implement full inspection.
8.2.2 Item inspection:bzxz.net
Use a DC bridge to measure DC resistance and conduct random inspections. Use a withstand voltage test bench to conduct withstand voltage test and full inspection. Use a turn-to-turn tester to conduct pulse test and full inspection. Choose one of the inspection schemes.
Additional Notes:
This standard is proposed and managed by the National Electric Tool Standardization Technical Committee. This standard is drafted by the Shanghai Electric Tool Research Institute of the Ministry of Machinery Industry. The main drafters of this standard are Huang Zhiqiang and Li Ejun. 49
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