New energy automobile motor three-phase current collecting ring laser welding jig

Abstract

The utility model discloses a laser welding jig for a three-phase current collecting ring of a new energy automobile motor. The laser welding jig comprises an equal-height base, an upper die base and a lower die base. The equal-height base is located above the upper die base. The upper die base is installed above the lower die base, and a product part is installed between the upper die base and the lower die base. An upper comb-shaped chuck is arranged on the upper die holder, a lower comb-shaped chuck is arranged on the lower die holder, and the upper comb-shaped chuck corresponds to the lower comb-shaped chuck. By means of the mode, a product part rapidly falls in place through the lower die base and the positioning pins on the lower die base, the upper die base is rapidly inserted into the lower die base through the positioning columns, and a plurality of end connection welding heads of the product part are clamped and fixed through the upper comb-shaped chuck and the lower comb-shaped chuck. Therefore, the quality of welded products can be guaranteed, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding, in particular to a laser welding fixture for three-phase collector rings of new energy automobile motors. Background Art

[0002] At present, the driving motors of new energy electric vehicles on the market are divided into permanent magnet synchronous motors and AC asynchronous motors. Regardless of the type, the rotor and stator coils need to rotate to generate a rotating magnetic field to achieve energy conversion and drive. The control and operation of the motor require the stator of the motor to be directly connected to the U, V, and W three-phase electrodes of the motor driver. The conventional motor connection end is to directly combine the stator copper wires in phases and connect them into one to form a three-phase motor connection end. There are also new product motors designed in this way. The stator is connected to the driver through a U, V, W three-phase collector ring E-RING. The collector ring E-RING becomes a key component of the motor. The collector ring is stamped, bent, and injection molded to form two large components, that is, the annular part and the U, V, W connection head end are connected through several end welds to form an integral collector ring component. Compared with the conventional connection method of the motor connection end, this method can improve the conductivity and strength of the motor, but at the same time, it requires that several connecting pieces can be clamped and tightly attached at the same time during welding to achieve the process requirements of zero gap in laser welding, because the gap will cause internal quality problems of the weld, such as pores, explosion points, cracks and other defects, and the welding quality of the product is unstable. Therefore, this places higher requirements on the clamping of the laser welding of the motor collector ring E-RING to achieve production stability. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a laser welding fixture for three-phase collector rings of new energy automobile motors which can achieve dual guarantees of production efficiency and stability and can ensure the quality of laser welding.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is:

[0005] A laser welding fixture for three-phase electric collector rings of new energy automobile motors, comprising: a height-equalizing seat, an upper die seat, and a lower die seat;

[0006] The equal height seat is located above the upper die seat;

[0007] The upper die base is installed above the lower die base, and product parts are installed between the upper die base and the lower die base;

[0008] An upper comb-shaped chuck is arranged on the upper die base, and a lower comb-shaped chuck is arranged on the lower die base, and the upper comb-shaped chuck corresponds to the lower comb-shaped chuck.

[0009] Preferably, a positioning hole is respectively opened on the upper die seat and the equal height seat, and the positioning column passes through the positioning hole on the equal height seat and the upper die seat to assemble the equal height seat and the upper die seat together.

[0010] Preferably, an assembly hole one is provided on the upper die base, and the upper comb-shaped chuck is fixedly mounted on the upper die base through the assembly hole one.

[0011] Preferably, a second positioning hole is opened on the lower die base, a positioning pin is installed in the second positioning hole, and the upper die base is installed on the lower die base through the positioning pin.

[0012] Preferably, the product part is fixed between the lower die base and the upper die base by the positioning pin, and a plurality of terminal welding heads of the product part are clamped by the upper comb-shaped chuck and the lower comb-shaped chuck.

[0013] Preferably, a second assembly hole is provided on the lower die base, and the lower comb-shaped chuck is fixedly mounted on the lower die base through the second assembly hole.

[0014] Preferably, a contour block is provided on the lower die base, and the contour block is installed on the lower die base through the positioning hole three.

[0015] Preferably, welding holes for welding are reserved on the upper die base and the lower die base respectively.

[0016] The beneficial effects of the utility model are:

[0017] (1) The utility model discloses a laser welding fixture for three-phase collector rings of new energy automobile motors. The fixture uses a building block method to quickly install parts. The product parts are quickly dropped into place through the lower die seat and the positioning pins thereon. The upper die seat is quickly inserted into the lower die seat through the positioning columns. The upper and lower comb-shaped chucks are used to clamp and fix multiple terminal welding heads of the product parts. The fixture is easy to install and has stable clamping, thereby ensuring the quality of the welded products and improving production efficiency.

[0018] (2) The utility model discloses a laser welding fixture for a three-phase collector ring of a new energy vehicle motor, which adopts a positioning column and a positioning pin structure design method to achieve rapid positioning and installation of the welding fixture.

[0019] (3) The utility model discloses a laser welding fixture for three-phase collector rings of new energy automobile motors. Through equal-height seats and equal-height blocks, the focal length of product parts can be set to be consistent on the upper and lower surfaces during laser double-sided welding. After welding on one side, the fixture can be directly flipped over. While the focal length is kept accurate and unchanged, the welding of the weld on the other side can be directly carried out. This greatly saves program debugging time and ensures the consistency of focal length and laser energy, thereby improving welding quality, stability and yield rate, and also improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a laser welding fixture for three-phase collector rings of a new energy vehicle motor of the utility model;

[0021] Figure 2 It is a schematic diagram of the exploded view of the laser welding fixture for the three-phase collector ring of the new energy vehicle motor shown;

[0022] Figure 3 It is a schematic diagram of the exploded view of the laser welding fixture for the three-phase collector ring of the new energy vehicle motor shown;

[0023] Figure 4 It is a partial structural schematic diagram of a laser welding fixture for a three-phase collector ring of a new energy vehicle motor;

[0024] The markings of the components in the accompanying drawings are as follows:

[0025] 1. Contour seat; 1-1. Positioning hole; 2. Upper die seat; 2-1. Assembly hole one; 3. Positioning column; 4. Contour block; 5. Positioning pin; 6. Upper comb-shaped chuck; 7. Product parts; 8. Lower comb-shaped chuck; 9. Lower die seat; 9-1. Positioning hole two; 9-2. Assembly hole two; 9-3. Assembly hole three. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0027] Example:

[0028] This embodiment introduces the structure of a laser welding fixture for three-phase collector rings of new energy vehicle motors.

[0029] like Figure 1 , 2 As shown, Figure 1 This is a schematic diagram of the structure of a laser welding fixture for three-phase collector rings of new energy vehicle motors. Figure 2 The figure is a schematic diagram of the exploded view of the laser welding fixture for the three-phase electric collector ring of the new energy automobile motor. A laser welding fixture for the three-phase electric collector ring of the new energy automobile motor comprises: an equal height seat 1, an upper die seat 2, and a lower die seat 9;

[0030] The equal height seat 1 is located above the upper die seat 2;

[0031] The upper die base 2 is installed above the lower die base 9, and the product part 7 is installed between the upper die base 2 and the lower die base 9;

[0032] An upper comb-shaped chuck 6 is arranged on the upper die base 2 , and a lower comb-shaped chuck 8 is arranged on the lower die base 2 , and the upper comb-shaped chuck 6 corresponds to the lower comb-shaped chuck 8 .

[0033] Furthermore, a positioning hole 1-1 is respectively opened on the upper die seat 2 and the height-adjusting seat 1, and the positioning column 3 passes through the positioning hole 1-1 on the height-adjusting seat 1 and the upper die seat 2 to assemble the height-adjusting seat 1 and the upper die seat 2 together.

[0034] like Figure 3 , 4 As shown, Figure 3 This is a schematic diagram of the decomposition of the laser welding fixture for the three-phase collector ring of the new energy vehicle motor. Figure 4 It is a schematic diagram of the partial structure of the laser welding fixture for the three-phase collector ring of the new energy vehicle motor.

[0035] The upper die base 2 is provided with an assembly hole 2 - 1 , and the upper comb-shaped chuck 6 is fixedly mounted on the upper die base 2 through the assembly hole 2 - 1 .

[0036] Furthermore, a second positioning hole 9 - 1 is opened on the lower die base 9 , and a positioning pin 5 is installed in the second positioning hole 9 - 1 , and the upper die base 2 is installed on the lower die base 9 through the positioning pin 5 .

[0037] Furthermore, the product part 7 is fixed between the lower die base 9 and the upper die base 2 by the positioning pin 5, and multiple end welding heads of the product part 7 are clamped by the upper comb-shaped chuck 6 and the lower comb-shaped chuck 8 to achieve fixation.

[0038] Furthermore, a second assembly hole 9 - 2 is provided on the lower die base 9 , and the lower comb-shaped chuck 8 is fixedly mounted on the lower die base 9 through the second assembly hole 9 - 2 .

[0039] By using a building block method to quickly install parts, the product parts are first quickly dropped into place through the lower die base and the locating pins on it, and the upper die base is quickly inserted into the lower die base through the locating columns. The upper and lower comb-shaped chucks are used to clamp and fix the multiple end welding joints of the product parts, thereby ensuring the quality stability of laser welding.

[0040] Furthermore, a contour block 4 is provided on the lower die base 9, and the contour block 4 is installed on the lower die base 9 through the positioning hole three 9-3.

[0041] The equal height seat and equal height block make the focal length setting of the product parts during laser double-sided welding consistent on the upper and lower surfaces, thereby improving the stability of welding quality. In this embodiment, the structural design of the positioning column and the positioning pin for rapid positioning can facilitate the rapid assembly of components.

[0042] For further understanding, the laser welding fixture installation operation is briefly described in this embodiment:

[0043] 1. Place the lower comb-shaped chuck 8 into the second assembly hole 9-2 on the lower die base 9, and at the same time, assemble the positioning pin 5 and the equal height block 4 on the lower die base 9 through the second positioning hole 9-1 and the third positioning hole 9-3 respectively;

[0044] 2. Guide and position the product part 7 on the lower die seat 9 through the positioning pin 5;

[0045] 3. The positioning column 3 assembles the equal height seat 1 and the upper die seat 2. The upper comb-shaped chuck 6 is fixedly installed on the upper die seat 2 through the assembly hole 2-1. After the above components are assembled, the lower die seat 9 is inserted through the positioning pin 5 to realize the clamping of the upper and lower die seats;

[0046] 4. Start laser welding of the front weld through the reserved welding hole on the upper die base 2;

[0047] 5. After the front side welding is completed, the fixture can be directly turned over for reverse side welding. The tooling is turned over, the product is inverted 180°, and the laser passes through the reserved welding hole of the lower die seat 9 to complete the welding of the linear weld on the reverse side.

[0048] 6. After completing the welding of the front and back welds, disassemble the lower die base 9, take out the product parts, and the welding is completed.

[0049] In production, the product needs double-sided welding. After welding the front and back in the above order, the parts and fixtures are turned over as a whole. There is no need to adjust the laser focal length. The weld on the other side can be directly welded. The double-sided laser welding requirements of the collector ring can be completed quickly with stable and consistent quality.

[0050] Through the above description, the welding jig has the dual effects of production efficiency and stable quality. In actual production use, through the structural design of this solution, first of all, the welding jig is easy to assemble, and can be quickly installed and disassembled. The positioning column and the positioning pin provide a positioning and guiding installation function for quick installation. At the same time, the welding jig provided by the utility model can realize double-sided welding. When the front side is welded, the jig is directly turned over to weld the back side. Under the action of the equal height seat and the equal height block, the welding focal length can be guaranteed to be accurate and unchanged, and the welding of the weld on the other side can be carried out directly. This greatly saves the program debugging time, as well as the consistency of adjusting the focal length and laser energy, thereby improving the welding quality, stability and yield rate, and also greatly improving the production efficiency.

[0051] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A laser welding fixture for three-phase collector rings of new energy vehicle motors, characterized in that: include: Equal height base (1), upper mold base (2), lower mold base (9); The equal height seat (1) is located above the upper die seat (2); The upper die base (2) is installed above the lower die base (9), and the product part (7) is installed between the upper die base (2) and the lower die base (9); An upper comb-shaped chuck (6) is arranged on the upper die base (2), and a lower comb-shaped chuck (8) is arranged on the lower die base (9), and the upper comb-shaped chuck (6) corresponds to the lower comb-shaped chuck (8).

2. A laser welding fixture for three-phase collector rings of new energy automobile motors according to claim 1, characterized in that: A positioning hole (1-1) is respectively provided on the upper die seat (2) and the height-adjusting seat (1), and a positioning column (3) passes through the positioning hole (1-1) on the height-adjusting seat (1) and the upper die seat (2), so that the height-adjusting seat (1) and the upper die seat (2) are assembled together.

3. According to claim 1, a laser welding fixture for three-phase electric collector rings of new energy automobile motors is characterized in that: An assembly hole (2-1) is provided on the upper die base (2), and the upper comb-shaped chuck (6) is fixedly mounted on the upper die base (2) through the assembly hole (2-1).

4. A laser welding fixture for three-phase collector rings of new energy automobile motors according to claim 1, characterized in that: A second positioning hole (9-1) is provided on the lower die base (9), a positioning pin (5) is installed in the second positioning hole (9-1), and the upper die base (2) is installed on the lower die base (9) through the positioning pin (5).

5. A laser welding fixture for three-phase collector rings of new energy automobile motors according to claim 4, characterized in that: The product part (7) is fixed between the lower die base (9) and the upper die base (2) by the positioning pin (5), and multiple end welding heads of the product part (7) are clamped by the upper comb-shaped chuck (6) and the lower comb-shaped chuck (8).

6. A laser welding fixture for three-phase collector rings of new energy automobile motors according to claim 1, characterized in that: The lower die base (9) is provided with a second assembly hole (9-2), and the lower comb-shaped chuck (8) is fixedly mounted on the lower die base (9) through the second assembly hole (9-2).

7. A laser welding fixture for three-phase electric collector rings of new energy automobile motors according to claim 1, characterized in that: The lower die base (9) is provided with an equal height block (4), and the equal height block (4) is installed on the lower die base (9) through a positioning hole three (9-3).

8. The laser welding fixture for three-phase collector rings of new energy automobile motors according to claim 1 is characterized in that: Welding holes for welding are respectively reserved on the upper die base (2) and the lower die base (9).

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