Positioning device for stator end winding welding

Abstract

The application discloses a positioning device for stator wire head welding, which comprises a base, a plurality of limiting grooves extending radially along the base are arranged on the base at intervals in the circumferential direction, a plurality of push rod units, each of the push rod units comprises a limiting rod and a limiting part connected to one end of the limiting rod, each of the limiting rods is arranged in a different limiting groove, a rubber buffer pad arranged between adjacent limiting rods and abutting against the limiting rods, and a rotating unit capable of driving the base to rotate in the vertical direction as the axis. The application improves the alignment efficiency and the welding efficiency. In the positioning process, the wire head and the connecting copper sheet can have a good abutting effect, so that the quality of the stator after welding is more stable. In addition, the floating of the position of the push rod unit is realized through the action of the rubber buffer pad, so that the automatic adjustment effect is achieved.

Description

Technical Field

[0001] This invention relates to the field of positioning mechanisms, specifically a positioning device for stator wire welding. Background Technology

[0002] In motor manufacturing, to simplify winding, there are often many wire ends. For example, in this case, a stator has as many as 24 wire ends that need to be soldered. Soldering requires the wire ends to be brought into contact with the connecting copper plates, and the soldering is completed in this state. Current technology requires aligning each individual wire end before soldering, resulting in low soldering efficiency. Furthermore, because the stator is very small and the wire ends are very thin, the alignment is poor, leading to inconsistent stator quality after soldering. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the following technical solutions can be conceived by those skilled in the art: The inventors attempted to use multiple fixed push rods to simultaneously fix the wire ends; however, due to the differences in the positions of the various wire ends, it is impossible to achieve the effect of all push rods simultaneously abutting each wire end, resulting in poor positioning effect. Therefore, the above solution is not feasible. This invention provides a positioning device for stator wire end welding, which solves one or more of the above problems.

[0004] This application discloses a positioning device for stator wire welding, comprising a base with a plurality of limiting grooves extending radially along its circumference; a plurality of push rod units, each push rod unit including a limiting rod and a limiting part connected to one end of the limiting rod, each limiting rod being placed in a different limiting groove, the width of the limiting rod in the horizontal direction being smaller than the width of the limiting groove in the horizontal direction, the limiting rod being rotatably connected to the base located inside the limiting groove, and the limiting part being located outside the base; a rubber buffer pad, the rubber buffer pad being placed between adjacent limiting rods and abutting against the limiting rods; and a rotation unit, the drive unit being capable of driving the base to rotate about a vertical axis.

[0005] Furthermore, the number of limiting grooves is 24, and the 24 push rod units are disposed on the base.

[0006] Furthermore, the base includes a connecting portion disposed below the push rod unit, and the outer wall of the connecting portion is connected to the inner wall of the stator.

[0007] Furthermore, it includes a recording unit disposed below the base. The recording unit includes an encoding chip connected to the base. The encoding chip is used to identify the base with push rod units of different specifications and record the usage status. The lower end of the encoding chip is connected to a shaft and a fixing member disposed on the side of the shaft. The fixing member is used to fix the shaft to the rotating unit.

[0008] Furthermore, it includes a locking screw that passes through the base, the lower part of the locking screw extending out of the base and threadedly connected to the recording unit.

[0009] Furthermore, the lower end of the base has a downwardly extending positioning pin, which is located between the locking screw and the outer edge of the base, and the positioning pin can extend into the recording unit.

[0010] Furthermore, the rotating unit is a rotary cylinder.

[0011] Furthermore, the rubber buffer pad is made of high-elasticity rubber.

[0012] Furthermore, the connecting shaft between the limiting rod and the base extends vertically, so that the limiting rod can rotate horizontally.

[0013] The beneficial effects of this invention are as follows:

[0014] Multiple push rod units can simultaneously abut different wire ends against the connecting copper sheet, thereby improving alignment efficiency and thus welding efficiency. During the positioning process, the limiting part gradually abuts against the side of the wire end away from the connecting copper sheet and pushes the wire end against the connecting copper sheet. Each limiting part is in this state simultaneously, resulting in a better abutment effect between the wire end and the connecting copper sheet, leading to more stable stator quality after welding. Furthermore, the relationship between each push rod unit and its corresponding limiting groove can be floating. This allows for automatic adjustment when there are deviations in the distance between different push rod units and their corresponding wire ends, achieved through the action of the rubber buffer pad.

[0015] To make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the stator structure in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram showing the detailed structure of the stator in an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the positioning device for stator wire welding in an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the base structure in an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the positional structure between the push rod unit and the base in an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the positional structure between the stator and the push rod unit in an embodiment of the present invention;

[0023] Figure 7 This is a cross-sectional view of the base in an embodiment of the present invention;

[0024] The reference numerals in the above figures are as follows: 1. Stator; 11. Wire end; 12. Connecting copper sheet; 2. Base; 3. Push rod unit; 31. Limiting rod; 32. Limiting part; 4. Rubber buffer pad; 5. Connecting part; 6. Recording unit; 61. Encoding chip; 62. Shaft handle; 63. Fixing part; 7. Locking screw; 8. Positioning pin. Detailed Implementation

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

[0026] like Figures 1 to 7 As shown, this embodiment of a positioning device for stator wire end welding includes...

[0027] The base 2 is provided with a plurality of limiting grooves that extend radially along its circumference, and the limiting grooves are used to simultaneously accommodate a plurality of push rod units 3.

[0028] Multiple push rod units 3 are provided, each push rod unit 3 including a limiting rod 31 and a limiting part 32 connected to one end of the limiting rod 31. Each limiting rod 31 is placed in a different limiting groove. The width of the limiting rod 31 in the horizontal direction is smaller than the width of the limiting groove in the horizontal direction. The limiting rod 31 is rotatably connected to the base 2 located inside the limiting groove. The limiting part 32 is located outside the base 2, thereby allowing each limiting rod 31 to rotate around its connection point with the base 2 as its axis. During rotation, the limiting rod 31 can rotate relative to the base 2 within the limiting groove, and the limiting part 32 can rotate under the influence of the limiting rod 31. Preferably, the connecting shaft between the limiting rod 31 and the base 2 extends vertically to allow the limiting rod 31 to rotate horizontally.

[0029] A rubber buffer pad 4 is placed between adjacent limiting rods 31 and abuts against them. This allows the buffer pad to cushion the push rod unit 3 when there are differences in the position of each wire end 11, enabling the relative position of the push rod units 3 to float under the action of the buffer pad, achieving an automatic adjustment effect and thus better compatibility. Preferably, the rubber buffer pad 4 is made of high-elasticity rubber, which provides a good cushioning effect for the limiting rod 31 and allows the limiting rod 31 to have a good reset effect.

[0030] The rotating unit, the driving unit, can drive the base 2 to rotate about a vertical axis. This also enables the push rod unit 3 to rotate about a vertical axis.

[0031] In this embodiment, the stator 1 is disposed at the lower end of the push rod unit 3, and each of the limiting parts 32 is located on the side of the wire end 11 away from the connecting copper sheet 12. The number of limiting slots is 24, and 24 push rod units 3 are disposed on the base 2.

[0032] In the initial state, each of the limiting parts 32 is isolated from its adjacent wire ends 11, thereby avoiding any interaction between the limiting parts 32 and the wire ends 11.

[0033] In the positioning state, the rotating unit drives the base 2 to rotate relative to the stator 1, thereby causing the push rod unit 3 to rotate relative to the stator 1. This rotation brings the push rod unit 3 closer to the nearby wire end 11, causing the limiting part 32 to gradually abut against the side of the wire end 11 away from the connecting copper plate 12, pushing the wire end 11 to abut against the connecting copper plate 12, thus achieving a positioning effect. Welding is then performed in this state. During this process, multiple push rod units 3 can simultaneously achieve the effect of abutting different wire ends 11 against the connecting copper plate 12. The rubber buffer pad 4 allows the relationship between each push rod unit 3 and its corresponding limiting groove to float. This allows for automatic adjustment when there is a deviation in the distance between different push rod units 3 and their corresponding wire ends 11, as the rubber buffer pad 4 helps to adjust the position of the push rod unit 3.

[0034] With the above structure, multiple push rod units 3 can simultaneously achieve the effect of abutting different wire ends 11 with the connecting copper sheet 12, thereby improving alignment efficiency and thus welding efficiency. During the positioning process, the limiting part 32 gradually abuts against the side of the wire end 11 away from the connecting copper sheet 12 and pushes the wire end 11 to abut against the connecting copper sheet 12, and each limiting part 32 can be in this state at the same time, thereby achieving a better abutment effect between the wire end 11 and the connecting copper sheet 12, and thus making the quality of the stator 1 more stable after welding. In addition, the relationship between each push rod unit 3 and its corresponding limiting groove can be floating, so that when there is a deviation in the distance between different push rod units 3 and their corresponding wire ends 11, the position of the push rod unit 3 can be floating through the action of the rubber buffer pad 4, thereby achieving an automatic adjustment effect.

[0035] Specifically, the base 2 includes a connecting portion 5 disposed below the push rod unit 3, and the outer wall of the connecting portion 5 is connected to the inner wall of the stator 1. This allows the stator 1 to be fixed to the connecting portion 5, making the stator 1 more stable during positioning and improving the stability of the positioning device during use.

[0036] Specifically, it includes a recording unit 6 disposed below the base 2. The recording unit 6 includes an encoding chip 61 connected to the base 2. The encoding chip 61 is used to identify the base 2 with push rod units 3 of different specifications and record the usage status, facilitating the recording of production times and linking it to the product for easy traceability of subsequent issues. A shaft 62 and a fixing member 63 disposed on the side of the shaft 62 are connected to the lower end of the encoding chip 61. The fixing member 63 is used to fix the shaft 62 to the rotating unit. This allows the recording unit 6 to connect to the rotating unit. Preferably, it includes a locking screw 7 passing through the base 2. The lower part of the locking screw 7 extends out of the base 2 and is threadedly connected to the recording unit 6, thereby enabling the rotating part to drive the recording unit 6 and the base 2 to rotate synchronously.

[0037] Specifically, the lower end of the base 2 has a downwardly extending positioning pin 8, which is located between the locking screw 7 and the outer edge of the base 2. The positioning pin 8 can extend into the recording unit 6. This arrangement, through the cooperation of the positioning pin 8 and the locking screw 7, prevents relative rotation between the base 2 and the recording unit 6 in the horizontal direction, thereby improving the connection between the recording unit 6 and the base 2.

[0038] Specifically, the rotating unit is a rotary cylinder. Because the rotary cylinder itself has good reciprocating rotation within a small range, during the process of the rotating unit composed of the rotary cylinder driving the base 2 to rotate, the base 2 and the push rod unit 3 can achieve good reciprocating rotation for a long time, thus enabling repeated positioning of different stators 1.

[0039] Specific embodiments have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this invention. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A positioning device for stator end winding welding, characterized in that, Comprising a base, a plurality of limiting grooves extending radially along the base are arranged circumferentially on the base; a plurality of push rod units, each of the push rod units comprises a limiting rod and a limiting part connected to one end of the limiting rod, each of the limiting rods is arranged in a different limiting groove, the width of the limiting rod in the horizontal direction is less than the width of the limiting groove in the horizontal direction, the limiting rod is rotationally connected with the base inside the limiting groove, and the limiting part is located outside the base; the base comprises a connecting part arranged below the push rod units, the outer wall of the connecting part is connected with the inner wall of the stator, and the connecting shaft of the limiting rod and the base extends in the vertical direction to enable the limiting rod to rotate in the horizontal direction; a rubber buffer pad arranged between adjacent limiting rods and abutting against the limiting rods; a rotating unit capable of driving the base to rotate about the vertical direction as the axis.

2. The positioning device for stator end winding welding according to claim 1, characterized in that, The number of limiting grooves is 24, and 24 push rod units are arranged on the base.

3. The positioning device for stator end turn welding of claim 1, wherein, a recording unit arranged below the base, the recording unit comprises an encoding chip connected with the base, the encoding chip is used to identify the base provided with different specifications of the push rod units and record the use state, the lower end of the encoding chip is connected with a shaft handle and a fixing member arranged on the side of the shaft handle, and the fixing member is used to fixedly connect the shaft handle with the rotating unit.

4. The positioning device for stator end turn welding of claim 3, wherein, a locking screw penetrating through the base, the lower part of the locking screw extends out of the base and is threadedly connected with the recording unit.

5. The positioning device for stator end turn welding of claim 4, wherein, the lower end of the base has a positioning pin extending downward, the positioning pin is located between the locking screw and the outer edge of the base, and the positioning pin can extend into the recording unit.

6. The positioning device for stator end turn welding of claim 1, wherein, the rotating unit is a rotary air cylinder.

7. The positioning device for stator coil end welding of claim 1, wherein, the rubber buffer pad is made of high-elasticity rubber material.

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