Iron core welding jig and equipment

Abstract

The utility model discloses an iron core welding jig and equipment, and belongs to the field of motor iron core manufacturing, the iron core welding jig comprises a welding seat, the welding seat comprises a base and a sleeve fixed on the base, the sleeve is cylindrical, the axis of the sleeve is perpendicular to the base, the sleeve is used for sleeving an iron core, the iron core welding jig further comprises at least one annular spacer ring, and the spacer ring is provided with a plurality of annular grooves. The spacer ring comprises a main body and a plurality of adhesion-free blocks fixed to the main body, the adhesion-free blocks are arranged at intervals and located on the outer side wall of the main body, the distance between the outer edge of each adhesion-free block and the axis of the sleeve is larger than the diameter of the corresponding iron core, and the adhesion-free blocks are located on the straight line where welding beads of the iron cores are located. A plurality of iron core products can be welded at one time during welding, and two adjacent iron core products cannot be adhered due to welding; the adhesion-free block is not adhered to the iron core product due to the fact that the adhesion-free block is made of different materials from the iron core product.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing, and in particular to iron core welding fixtures and equipment including the aforementioned iron core welding fixtures. Background Technology

[0002] The motor core is formed by stacking and fixing multiple laminations together. One way to fix the multiple laminations together is to weld them along the height direction on the outer diameter of the laminations.

[0003] Existing welding equipment can only weld one iron core product at a time. When multiple iron core products are welded together, adjacent iron core products will be welded together, resulting in low welding efficiency. Furthermore, the end laminations of existing welding equipment are prone to deformation due to collisions during welding. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, one of the objectives of this utility model is to provide a welding fixture for iron cores that can weld multiple iron core products at one time and whose stacked sheets are not easily deformed.

[0005] In order to overcome the shortcomings of the existing technology, the second objective of this utility model is to provide a core welding equipment that can weld multiple core products at one time and whose stacked laminations are not easily deformed.

[0006] One of the objectives of this utility model is achieved through the following technical solution:

[0007] A welding fixture for iron cores includes a welding seat, the welding seat including a base and a sleeve fixed to the base, the sleeve being cylindrical with its axis perpendicular to the base, the sleeve being used to fit an iron core, the iron core welding fixture further including at least one spacer ring, the spacer ring being annular with its main body and a plurality of non-adhesive blocks fixed to the main body, the plurality of non-adhesive blocks being spaced apart and located on the outer sidewall of the main body, the distance from the outer edge of the non-adhesive block to the axis of the sleeve being greater than the diameter of the iron core, the non-adhesive block being located on the straight line of the weld bead of the iron core.

[0008] Furthermore, the non-adhesive block is a copper block.

[0009] Furthermore, there are multiple spacer rings, which are parallel to each other and have corresponding positions for the non-adhesive blocks.

[0010] Furthermore, multiple spacer rings are spaced apart, and an iron core is provided between two adjacent spacer rings.

[0011] Furthermore, the welding base also includes a positioning post, which is fixed to the base and perpendicular to the base, and the positioning post extends into the positioning groove of the iron core to position the iron core circumferentially.

[0012] Furthermore, the positioning post includes a column body, the cross-section of which is rectangular.

[0013] Furthermore, the positioning post includes a guide end located at the end of the positioning post away from the base, and the guide end is tapered.

[0014] Furthermore, the guide end is a triangular cone.

[0015] The second objective of this utility model is achieved by the following technical solution:

[0016] A core welding device includes a worktable, a turntable, and any one of the aforementioned core welding fixtures. The turntable is rotatably mounted on the worktable, and the core welding fixture is rotatably mounted on the turntable. The number of core welding fixtures is multiple, and the multiple core welding fixtures are evenly distributed on the turntable.

[0017] Compared to existing technologies, the welding seat of this utility model iron core welding fixture includes a base and a sleeve fixed to the base. The sleeve is cylindrical, and its axis is perpendicular to the base. The sleeve is used to fit the iron core. The iron core welding fixture also includes at least one spacer ring. The spacer ring is annular and includes a main body and multiple non-adhesive blocks fixed to the main body. The multiple non-adhesive blocks are spaced apart and located on the outer sidewall of the main body. The distance from the outer edge of the non-adhesive block to the axis of the sleeve is greater than the diameter of the iron core. The non-adhesive blocks are located on the straight line of the weld bead of the iron core. Through the above design, the spacer ring separates two adjacent iron cores, and multiple iron core products can be welded at one time during welding, without the two adjacent iron core products sticking together due to welding. The non-adhesive blocks, because of their different material from the iron core products, will also not stick to the iron core products. Attached Figure Description

[0018] Figure 1 This is a perspective view of the iron core welding equipment of this utility model;

[0019] Figure 2 for Figure 1 A three-dimensional view of the fixture for iron core welding equipment;

[0020] Figure 3 for Figure 2 A three-dimensional view of the welding seat of the fixture;

[0021] Figure 4 for Figure 2 A three-dimensional diagram of the spacer ring of the fixture;

[0022] Figure 5 for Figure 2 A three-dimensional diagram showing the usage status of the jig;

[0023] Figure 6 for Figure 5 An enlarged view of point A on the fixture.

[0024] In the diagram: 10, turntable; 20, jig; 21, welding seat; 210, base; 211, sleeve; 212, positioning post; 213, column; 214, guide end; 22, spacer ring; 220, main body; 2201, clearance hole; 221, non-adhesive block; 100, iron core; 101, weld bead; 102, positioning groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or it can be fixed through another intermediate component. When a component is said to be "connected to" another component, it can be directly connected to the other component or it may be fixed through another intermediate component. When a component is said to be "set on" another component, it can be set directly on the other component or it may be set through another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] The iron core welding equipment is used to weld an iron core 100, which is either a rotor or a stator. The iron core 100 is formed by stacking multiple laminations, which are then welded together and fixed to each other by weld beads 101 formed along the height direction. There are multiple weld beads 101, which are evenly distributed around the outer periphery of the iron core 100.

[0029] Please see Figures 1 to 6 The iron core welding equipment includes a turntable 10 and multiple fixtures 20.

[0030] The turntable 10 is rotatably mounted on the worktable, enabling the turntable 10 to drive multiple fixtures 20 to rotate around the center of the turntable 10, which facilitates the welding machine to weld the iron cores 100 on different fixtures 20.

[0031] There are multiple fixtures 20, which are evenly spaced and installed on the turntable 10. In this embodiment, there are four fixtures 20, which are symmetrically distributed.

[0032] Each fixture 20 is rotatably mounted on the turntable 10, so that the iron core 100 on the fixture 20 can rotate around the mounting position (the axis of the sleeve 211) mounted on the turntable 10, so that multiple weld passes 101 in the circumferential direction of the iron core 100 can be welded.

[0033] Each fixture 20 includes a welding seat 21 and at least one spacer ring 22 for spacing two adjacent iron cores 100 along the height direction.

[0034] The welding seat 21 includes a base 210, a sleeve 211, and a positioning post 212. Both the sleeve 211 and the positioning post 212 are fixed to the base 210. The sleeve 211 is used to fit the iron core 100, and the positioning post 212 is used for circumferential positioning of the iron core 100.

[0035] Specifically, both the base 210 and the sleeve 211 are cylindrical. The sleeve 211 extends from the surface of the base 210 and is perpendicular to the base 210. The sleeve 211 is coaxially arranged with the base 210, and the diameter of the sleeve 211 is smaller than the diameter of the base 210. The positioning post 212 is fixed to the base 210 and perpendicular to the base 210. Each positioning post 212 includes a post body 213 and a guide end 214. One end of the post body 213 is fixed to the base 210, and the other end is connected to the guide end 214. The post body 213 extends into the positioning groove 102 of the iron core 100 for circumferential positioning. In this embodiment, the cross-section of the post body 213 is rectangular. The guide end 214 is used to guide the positioning groove 102 to be installed along the positioning post 212 to avoid collision deformation of the stacked pieces. The guide end 214 is conical; in this embodiment, the guide end 214 is a triangular pyramid.

[0036] The spacer ring 22 is generally circular and includes a main body 220 and multiple non-adhesive blocks 221 mounted on the main body 220. The main body 220 has clearance holes 2201 and slots. The clearance holes 2201 are for the insertion of positioning pins 212. The slots are used to fix the non-adhesive blocks 221. In order to make the non-adhesive blocks 221 located on the straight line of the weld bead 101, the position of the slots on the main body 220 corresponds to the position of the weld bead 101, and the opening direction of the slots is radial to the main body 220.

[0037] The non-adhesive block 221 is used to prevent the iron core 100 from sticking to the spacer ring 22. Therefore, the material of the non-adhesive block 221 is different from that of the iron core 100. In this embodiment, the non-adhesive block 221 is a copper block. In order for the non-adhesive block 221 to break the weld bead 101 of two adjacent iron cores 100, the distance from the edge of the non-adhesive block 221 to the sleeve 211 is greater than the diameter of the iron core 100.

[0038] When using the iron core welding equipment, multiple iron cores 100 are installed on the same fixture 20. Spacer rings 22 are installed between adjacent iron cores 100. The weld beads 101 of the multiple iron cores 100 are located on the same straight line and are separated by non-adhesive blocks 221, forming multiple line segments on the same straight line. After multiple iron cores 100 are installed on each of the multiple fixtures 20, the welding gun simultaneously welds the multiple iron cores 100 on the fixtures 20. During welding, the weld beads 101 are welded along a straight line. After welding the weld bead 101 of one iron core 100, the gun moves along the straight line, skipping the non-adhesive blocks 221, and welds the weld bead 101 of the next iron core 100, until all weld beads 101 on the straight line are welded. At this time, the fixture 20 rotates relative to the turntable 10, and the welding gun welds the weld beads 101 on another straight line on the same fixture 20, until all circumferential weld beads 101 of the iron core 100 are welded. At this time, the turntable 10 rotates relative to the worktable, and multiple iron cores 100 on another fixture 20 are welded. In other embodiments, multiple welding guns can be used, each corresponding to a fixture 20, for synchronous welding. Through the rotation of the fixture 20 and the turntable 10, the positioned iron cores 100 do not need to be moved, reducing collisions and avoiding deformation of the stacked sheets.

[0039] In this application, the spacer ring 22 separates two adjacent iron cores 100, allowing multiple iron cores 100 to be welded at once, thus improving welding efficiency; and the two adjacent iron cores 100 will not stick together due to welding; the non-stick block 221, because of its different material from the iron core 100, will also not stick to the iron core.

[0040] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of this utility model, and all of these fall within the protection scope of this utility model.

Claims

1. A welding fixture for iron cores, comprising a welding base, characterized in that: The welding seat includes a base and a sleeve fixed to the base. The sleeve is cylindrical and its axis is perpendicular to the base. The sleeve is used to fit an iron core. The iron core welding fixture also includes at least one spacer ring. The spacer ring includes a main body and a plurality of non-adhesive blocks fixed to the main body. The plurality of non-adhesive blocks are spaced apart and located on the outer sidewall of the main body. The distance from the outer edge of the non-adhesive block to the axis of the sleeve is greater than the diameter of the iron core. The non-adhesive block is located on the straight line of the weld bead of the iron core.

2. The iron core welding fixture according to claim 1, characterized in that: The non-adhesive block is a copper block.

3. The iron core welding fixture according to claim 1, characterized in that: The number of spacers is multiple, the multiple spacers are parallel to each other, and the positions of the non-adhesive blocks of the multiple spacers correspond to each other.

4. The iron core welding fixture according to claim 3, characterized in that: Multiple spacer rings are spaced apart, and an iron core is provided between two adjacent spacer rings.

5. The iron core welding fixture according to claim 1, characterized in that: The welding base also includes a positioning post, which is fixed to the base and perpendicular to the base. The positioning post extends into the positioning groove of the iron core to position the iron core circumferentially.

6. The iron core welding fixture according to claim 5, characterized in that: The positioning post includes a column body, and the cross-section of the column body is rectangular.

7. The iron core welding fixture according to claim 5, characterized in that: The positioning post includes a guide end located at the end of the positioning post away from the base, and the guide end is tapered.

8. The iron core welding fixture according to claim 7, characterized in that: The guide end is a triangular cone.

9. A core welding device, comprising a workbench, characterized in that: the core welding device further comprises a turntable and a core welding fixture as described in any one of claims 1-8, the turntable being rotatably mounted on the workbench, the core welding fixture being rotatably mounted on the turntable, and the number of core welding fixtures being multiple, the multiple core welding fixtures being evenly distributed on the turntable.

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