CN219641422U - Tool clamp for testing copper wire welding spots of flat wire motor stator - Google Patents
Tool clamp for testing copper wire welding spots of flat wire motor stator Download PDFInfo
- Publication number
- CN219641422U CN219641422U CN202321082639.XU CN202321082639U CN219641422U CN 219641422 U CN219641422 U CN 219641422U CN 202321082639 U CN202321082639 U CN 202321082639U CN 219641422 U CN219641422 U CN 219641422U
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- CN
- China
- Prior art keywords
- profiling
- groove
- profile modeling
- base
- mounting groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000012360 testing method Methods 0.000 title claims abstract description 42
- 238000003466 welding Methods 0.000 title claims abstract description 29
- 238000009864 tensile test Methods 0.000 claims abstract description 19
- 229910052802 copper Inorganic materials 0.000 claims abstract description 10
- 239000010949 copper Substances 0.000 claims abstract description 10
- 229910000679 solder Inorganic materials 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 4
- 238000010008 shearing Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A frock clamp for testing flat wire motor stator copper line solder joint, includes a base, the downside of base be connected with a tensile testing machine lower part connecting piece, be provided with a fixing base on the base, the leading flank of fixing base is provided with a mounting groove, the mounting groove runs through the top surface and the bottom surface of fixing base along vertical direction, the front side of fixing base can be dismantled and is connected with a profile modeling piece, be provided with a profile modeling groove in the trailing flank of profile modeling piece, the profile modeling groove is rectangular shape, the bottom of profile modeling groove runs through the bottom surface of profile modeling piece downwards, the profile modeling groove is located the front side of mounting groove. The stress direction of the welding spot in the shear test is similar to the actual working condition, and the test result is accurate. The clamping part of the shearing and stretching tool adopts a profiling block, and is fixed by a screw, so that the clamping part is convenient to change the shape, and the testing of various products is met. Copper wires of different stator products are different in size, and the profiling blocks can be replaced to realize the profiling so as to meet the shearing and stretching test of the multi-wire-diameter copper wires.
Description
Technical Field
The utility model relates to the field of machinery, in particular to a test fixture, and particularly relates to a fixture for testing copper wire welding spots of a flat wire motor stator.
Background
In recent years, the demands of new energy automobile markets at home and abroad for driving motors gradually develop towards the directions of high power density, high efficiency and high rotating speed, the application range of flat wire motors is wider and wider, and the flat wire motors have the trend of replacing round copper wire motors. For the welding process link in the flat wire motor manufacturing process, the ends of two copper wires are usually welded together to form an effective connection. Taking an 8-layer 48-groove hairpin flat wire motor as an example, 192 groups of copper wires need to be welded, and finally 192 welding spots are obtained. In the using process of the automobile, the flat wire motor bears vibration load, and the quality of welding spots determines the reliability and safety of the motor. At present, the standard for testing the tension and reliability of a copper wire welding spot of a flat wire motor is temporarily not consistent with the standard for judging in the industry. At present, a steel wire method and a split-pulling method are adopted for testing, and the stress direction of a welding spot in the two testing processes is different from that in the actual use process of the welding spot, so that the testing result has larger deviation, the testing method is inaccurate, the actual stress state of the welding spot cannot be simulated, the testing result has larger fluctuation and poor stability.
Disclosure of Invention
The utility model aims to provide a fixture for testing copper wire welding spots of a flat wire motor stator, which aims to solve the technical problem that the copper wire welding spots of the flat wire motor cannot be accurately tested in the prior art.
The utility model relates to a fixture for testing copper wire welding spots of a flat wire motor stator, which comprises a base, wherein the lower side of the base is connected with a lower connecting piece of a tensile testing machine, a fixing seat is arranged on the base, the front side of the fixing seat is provided with a mounting groove, the mounting groove penetrates through the top surface and the bottom surface of the fixing seat along the vertical direction, the front side of the fixing seat is detachably connected with a profiling block, and the profiling block is positioned at the front side of the mounting groove.
Further, a profiling groove is arranged in the rear side face of the profiling block, the profiling groove is of a strip shape, a sealing surface is arranged at the top of the profiling groove, the bottom of the profiling groove extends downwards to the bottom face of the profiling block, and the profiling groove is located at the front side of the mounting groove.
Further, the lower connecting piece of the tensile testing machine comprises a cylindrical seat, and a radial positioning pin is arranged on the side surface of the cylindrical seat.
Compared with the prior art, the utility model has positive and obvious effects.
1. The stress direction of the welding spot in the shearing test is similar to the actual working condition, and the test result is accurate. In the shearing and stretching test process, the first copper wire is stressed upwards, the second copper wire is stressed downwards, and the welding spot at the end part is subjected to shearing force, so that the stress condition of the welding spot under the actual working condition can be better simulated, and the test result is more accurate.
2. The clamping part of the shearing and stretching tool adopts a profiling block, and is fixed by a screw, so that the clamping part is convenient to change the shape, and the testing of various products is met. In order to ensure the accuracy of the test result, the fixture clamping part adopts a profiling copper wire mode, and the profiling block is fixed on the fixing seat by a screw. Copper wires of different stator products are different in size, and the profiling blocks can be replaced to realize the profiling so as to meet the shearing and stretching test of the multi-wire-diameter copper wires.
3. The disassembly and assembly are convenient. The tensile testing machine lower part connecting piece of this frock can be connected with prior art's omnipotent tensile testing machine, demolish tensile chuck in the lower part of tensile testing machine during the test, changes into this tensile frock, fixes a position with the locating pin, and it is convenient to dismantle.
Drawings
Fig. 1 is a schematic view of a tooling fixture for testing copper wire welds of a flat wire motor stator according to the present utility model.
Fig. 2 is a schematic view of a working state of a fixture for testing copper wire welding spots of a flat wire motor stator according to the present utility model.
Fig. 3 is a schematic view of a fixing base in a fixture for testing copper wire welding spots of a flat wire motor stator according to the present utility model.
Fig. 4 is a schematic diagram of a profiling block in a tooling fixture for testing copper wire welding spots of a flat wire motor stator according to the present utility model.
Fig. 5 is a schematic diagram of a first copper wire and a second copper wire.
Detailed Description
The present utility model is further described below with reference to the drawings and examples, but the present utility model is not limited to the examples, and all the similar structures and similar variations using the present utility model should be included in the protection scope of the present utility model. The use of the directions of up, down, front, back, left, right, etc. in the present utility model is only for convenience of description, and is not a limitation of the technical scheme of the present utility model.
As shown in fig. 1-5, the fixture for testing copper wire welding spots of a flat wire motor stator comprises a base 1, wherein the lower side of the base 1 is connected with a lower connecting piece 2 of a tensile testing machine, a fixing seat 3 is arranged on the base 1, a mounting groove 4 is formed in the front side surface of the fixing seat 3, the mounting groove 4 penetrates through the top surface and the bottom surface of the fixing seat 3 in the vertical direction, a profiling block 5 is detachably connected to the front side of the fixing seat 3, and the profiling block 5 is located on the front side of the mounting groove 4.
Further, a profiling groove 6 is arranged in the rear side surface of the profiling block 5, the profiling groove 6 is in a strip shape, a sealing surface 12 is arranged at the top of the profiling groove 6, the bottom of the profiling groove 6 extends downwards to the bottom surface of the profiling block 5, and the profiling groove 6 is positioned at the front side of the mounting groove 4.
Further, the lower connecting piece 2 of the tensile testing machine comprises a cylindrical seat 7, and a radial positioning pin 11 is arranged on the side surface of the cylindrical seat 7.
Specifically, the base 1, the lower connector 2, the cylindrical seat 7, the positioning pin 11 and the like in the embodiment all adopt the well-known schemes in the prior art, and those skilled in the art will understand the schemes and will not be described herein.
The working principle of the embodiment is as follows: copper wire one 8 and copper wire two 9 weld together, there is solder joint 10 in its bottom, this device is connected with tensile testing machine lower part fixing base through tensile testing machine lower part connecting piece 2, place the copper wire lower extreme in mounting groove 4, copper wire one 8 is located mounting groove 4 inboard, copper wire two 9 are located the mounting groove 4 outside, it is fixed with fixing base 3 through the screw with profile modeling piece 5 again, copper wire two 9 are located profile modeling inslot 6, profile modeling inslot 6 wraps copper wire two 9, profile modeling piece 5 is used for blocking copper wire two 9, prevent its drunkenness. The upper end of the copper wire I8 is clamped by the upper clamping head of the tensile testing machine, then the test is carried out, the upper clamping head of the tensile testing machine vertically upwards stretches at a constant speed, in the stretching process, the stress direction of the copper wire I8 is consistent with the movement direction of the clamping head of the tensile testing machine, and the stress direction of the copper wire II 9 is opposite to the copper wire I8 due to the limitation of the sealing surface 12 of the profiling block 5, so that the welding spot 10 is subjected to shearing force. In the continuous application process of the tensile force, the welding spot 10 breaks, and the peak value of the force applied by the tensile testing machine during the breaking is the maximum tensile value of the welding spot 10.
The utility model has the advantages that:
1. the stress direction of the welding spot 10 in the shearing test is similar to the actual working condition, and the test result is accurate. In the shearing and stretching test process, the first copper wire 8 is stressed upwards, the second copper wire 9 is stressed downwards, and the end welding spot 10 is subjected to shearing force, so that the stress condition of the welding spot 10 under the actual working condition can be better simulated, and the test result is more accurate.
2. The clamping part of the shearing and stretching tool adopts a profiling block 5, and is fixed by a screw, so that the clamping part is convenient to change the shape, and the testing of various products is met. In order to ensure the accuracy of the test result, the fixture clamping part adopts a profiling copper wire mode, and the profiling block 5 is fixed on the fixing seat 3 by screws. Copper wires of different stator products are different in size, and the profiling block 5 can be replaced to realize the profiling so as to meet the shearing and stretching test of the multi-wire-diameter copper wires.
3. The disassembly and assembly are convenient. The tensile testing machine lower part connecting piece 2 of this frock can be connected with prior art's omnipotent tensile testing machine, demolish tensile chuck in the lower part of tensile testing machine during the test, changes into this tensile frock, fixes a position with locating pin 11, and it is convenient to dismantle.
Claims (3)
1. A frock clamp for testing flat wire motor stator copper line solder joint, its characterized in that: including a base (1), the downside of base (1) be connected with a tensile testing machine lower part connecting piece (2), be provided with a fixing base (3) on base (1), the leading flank of fixing base (3) is provided with mounting groove (4), mounting groove (4) run through the top surface and the bottom surface of fixing base (3) along vertical direction, the front side of fixing base (3) can be dismantled and be connected with a profile modeling piece (5), profile modeling piece (5) are located the front side of mounting groove (4).
2. The tooling fixture for testing copper wire welding spots of a flat wire motor stator according to claim 1, wherein: a profiling groove (6) is formed in the rear side face of the profiling block (5), the profiling groove (6) is of a strip shape, a sealing face (12) is arranged at the top of the profiling groove (6), the bottom of the profiling groove (6) extends downwards to the bottom face of the profiling block (5), and the profiling groove (6) is located at the front side of the mounting groove (4).
3. The tooling fixture for testing copper wire welding spots of a flat wire motor stator according to claim 1, wherein: the lower connecting piece (2) of the tensile testing machine comprises a cylindrical seat (7), and a radial positioning pin (11) is arranged on the side surface of the cylindrical seat (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321082639.XU CN219641422U (en) | 2023-05-08 | 2023-05-08 | Tool clamp for testing copper wire welding spots of flat wire motor stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321082639.XU CN219641422U (en) | 2023-05-08 | 2023-05-08 | Tool clamp for testing copper wire welding spots of flat wire motor stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219641422U true CN219641422U (en) | 2023-09-05 |
Family
ID=87807935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321082639.XU Active CN219641422U (en) | 2023-05-08 | 2023-05-08 | Tool clamp for testing copper wire welding spots of flat wire motor stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219641422U (en) |
-
2023
- 2023-05-08 CN CN202321082639.XU patent/CN219641422U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |