Welding tool for lifting lug plate assembly on outer side of motor stator

Abstract

The welding tool for the lifting lug plate assembly on the outer side of the motor stator comprises a positioning block and a positioning rod, a second through hole penetrating through the upper end face and the lower end face and a third through hole penetrating through the front end face and the rear end face are formed in the positioning block, the second through hole is matched with a pin column, and the third through hole and a first through hole in the pin column are both matched with the positioning rod; when the lifting lug plate assembly is welded, the end, provided with the first through hole, of the pin column penetrates through the stepped groove hole to be connected into the second through hole of the positioning block in a penetrating mode, the positioning rod penetrates through the first through hole and the third through hole to lock the pin column and the side plate, and the annular pedestal is embedded in the large-diameter end of the stepped groove hole. The pin column and the side plate are locked through the positioning rod and the positioning block, then the annular pedestal and the inner side face of the large-diameter end of the stepped groove hole are fixedly connected in a welded mode, the welded lifting lug plate assembly is welded to the designated vertex angle position of the peripheral side of the machine base, and it is ensured that the axial line of the first through hole in the pin column is located in the vertical direction; and the finished product percent of pass and the overall welding efficiency of the locomotive motor stator can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of locomotive motor processing, in particular to a welding tool for a lifting ear plate component on the outer side of a motor stator. Background Art

[0002] A permanent magnet motor refers to an electromagnetic device that realizes the conversion or transmission of electric energy according to the law of electromagnetic induction. Its main function is to generate driving torque. As a power source for electrical appliances or various machines, the main function of the motor is to convert mechanical energy into electrical energy.

[0003] like Figure 1-5 As shown, a locomotive motor stator comprises a lower base plate A, a base B and an upper cover body C, wherein the base B is formed by stacking a plurality of silicon steel sheets concentrically, a side plate D is welded at the top angle position of the outer peripheral side of the base B, the lower end of the side plate D is welded and fixed to the upper end surface of the lower base plate A, and the upper end of the side plate D is welded and fixed to the lower end surface of the upper cover body C, and a pin E is welded on the side plate D and is perpendicular to the outer side of the motor stator, and the outer end of the pin E is provided with a through hole with the axial line in the vertical direction. Hole E-1, the side plate D and the pin E form a hanging ear plate assembly; the side plate D is provided with a stepped slot hole D-1 penetrating the plate body, and the small diameter end of the stepped slot hole D-1 faces the outside of the motor stator, and a sloped eaves D-2 extending toward the motor stator is provided on a vertical edge on one side of the side plate D, and the pin E is provided with an annular pedestal E-2 at one end away from the through hole E-1, and the annular pedestal E-2 is embedded and welded inside the large diameter end of the stepped slot hole D-1. Since the ear plate assembly is not a standard symmetrical part, workers usually use manual temporary splicing of the pin shaft and the side plate during the traditional welding process. Therefore, the ear plate assembly is inevitably greatly affected by human factors. The existing problems are: (1) The positioning accuracy is poor during the pin shaft welding, which causes the axial line of the through hole 1 of the ear plate assembly to be skewed after it is welded on the motor stator. In severe cases, it cannot even guarantee the qualified requirements of the motor stator; (2) The number of products is huge, and the manual splicing and welding of the ear plate assembly leads to low welding efficiency of the motor stator, which cannot meet the large-scale delivery needs of the motor stator. Summary of the invention

[0004] The utility model aims to overcome the defects in the prior art and provide a welding tool for the outer ear plate assembly of the motor stator. When welding the ear plate assembly, one end of the pin column provided with the through hole one passes through the stepped slot hole and is connected to the inside of the through hole two of the positioning block. The positioning rod is connected to the inside of the through hole one and the through hole three to lock the pin column and the side plate, and the annular pedestal is embedded in the large diameter end of the stepped slot hole, and then the inner side surfaces of the annular pedestal and the large diameter end of the stepped slot hole are welded and fixedly connected. Finally, the welded ear plate assembly is spliced ​​and welded to the specified vertex angle position on the outer peripheral side of the base, so as to ensure that the axial line of the through hole one on the pin column is located in the vertical direction, ensure that the shape of the locomotive motor stator is highly accurate and meets the requirements, and improve the qualified rate of the finished product of the locomotive motor stator; at the same time, it is convenient to divide the welding operation of the locomotive motor stator into multiple processes, which helps to improve the overall welding efficiency of the locomotive motor stator; the welding tool for the outer ear plate assembly of the motor stator of the utility model is simple and reasonable in structure design, high in feasibility of preparation and implementation, and strong in practicality.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is to design a welding tool for the outer ear plate assembly of the motor stator, including a positioning block and a positioning rod. The positioning block is provided with a through hole 2 passing through the upper and lower end surfaces and a through hole 3 passing through the front and rear end surfaces. The through hole 2 is adapted to the pin column, and the through hole 3 and the through hole 1 on the pin column are both adapted to the positioning rod. When welding the ear plate assembly, one end of the pin column provided with the through hole 1 passes through the stepped slot and is connected to the inside of the through hole 2 of the positioning block, the positioning rod is connected to the inside of the through hole 1 and the through hole 3 to lock the pin column and the side plate, and the annular base is embedded in the large diameter end of the stepped slot.

[0006] The utility model discloses a welding tool for a lifting ear plate assembly on the outer side of a motor stator. When welding the lifting ear plate assembly, one end of a pin column provided with a through hole one passes through a stepped slot hole and is connected to the inside of a through hole two of a positioning block. A positioning rod is connected to the inside of the through holes one and three to lock the pin column and the side plate. The annular pedestal is embedded in the inside of the large diameter end of the stepped slot hole. Then the inner side surfaces of the annular pedestal and the large diameter end of the stepped slot hole are welded and fixedly connected. Finally, the welded lifting ear plate assembly is spliced ​​and welded to a specified vertex angle position on the outer peripheral side of the base, thereby ensuring that the axial line of the through hole one on the pin column is located in the vertical direction, ensuring that the shape of the locomotive motor stator is highly accurate and meets the requirements, and improving the qualified rate of the finished product of the locomotive motor stator. At the same time, it is convenient to divide the welding operation of the locomotive motor stator into multiple processes, which is helpful to improve the overall welding efficiency of the locomotive motor stator. The welding tool for the lifting ear plate assembly on the outer side of the motor stator of the utility model has a simple and reasonable structural design, high feasibility of preparation and implementation, and strong practicality.

[0007] The preferred technical solution is that the width of the positioning block along the left-right direction is equal to the width of the side panel, which facilitates the positioning of the positioning block on the side panel and improves the convenience and efficiency of positioning when the side panel and the pin are spliced.

[0008] A further preferred technical solution is that the length of the positioning rod is greater than the length of the positioning block in the front-to-back direction, which improves the convenience of holding the positioning rod and helps to improve the convenience of assembling the side plates and pins on the welding tooling of the utility model.

[0009] A further preferred technical solution is that the positioning block and the positioning rod are both made of aluminum. Aluminum has good thermal conductivity, thereby ensuring that the heat during welding can be discharged in time, effectively preventing overheating and deformation at the welding point, and helping to improve the dimensional accuracy of the lug plate assembly after welding.

[0010] The advantages and beneficial effects of the utility model are:

[0011] 1. The utility model discloses a welding tool for the outer ear plate assembly of the motor stator. When welding the ear plate assembly, one end of the pin column provided with the through hole 1 passes through the stepped slot hole and is connected to the inside of the through hole 2 of the positioning block. The positioning rod is connected to the inside of the through hole 1 and the through hole 3 to lock the pin column and the side plate, and the annular pedestal is embedded in the large diameter end of the stepped slot hole. Then the inner side surfaces of the annular pedestal and the large diameter end of the stepped slot hole are welded and fixedly connected. Finally, the welded ear plate assembly is spliced ​​and welded to the specified vertex angle position on the outer peripheral side of the base, so as to ensure that the axial line of the through hole 1 on the pin column is located in the vertical direction, and the shape of the locomotive motor stator is ensured to be accurate and meet the requirements, thereby improving the qualified rate of the finished product of the locomotive motor stator. At the same time, it is convenient to divide the welding operation of the locomotive motor stator into multiple processes, which is helpful to improve the overall welding efficiency of the locomotive motor stator. The welding tool for the outer ear plate assembly of the motor stator of the utility model has a simple and reasonable structural design, high feasibility of preparation and implementation, and strong practicality.

[0012] 2. The width of the positioning block along the left and right directions is equal to the width of the side panel, which facilitates the positioning of the positioning block on the side panel, thereby improving the convenience and efficiency of positioning when the side panel and the pin are spliced.

[0013] 3. The length of the positioning rod is greater than the length of the positioning block in the front-to-back direction, which improves the convenience of holding the positioning rod and helps to improve the convenience of assembling the side plate and the pin on the welding tool of the utility model.

[0014] 4. The positioning block and positioning rod are made of aluminum. Aluminum has good thermal conductivity, which ensures that the heat during welding can be discharged in time, effectively preventing overheating and deformation at the welding point, and helps to improve the dimensional accuracy of the lug plate assembly after welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the motor stator in the background technology;

[0016] Figure 2 It is a top-down perspective three-dimensional structural diagram of the upper side plate lifting ear assembly of the motor stator in the background technology;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the upper side plate lifting ear assembly of the motor stator in the background technology from an upward perspective;

[0018] Figure 4 It is a schematic diagram of the disassembled structure of the upper plate lifting ear assembly of the motor stator in the background technology;

[0019] Figure 5 It is a longitudinal cross-sectional view of the split structure of the upper side plate lifting ear assembly of the motor stator in the background technology;

[0020] Figure 6 It is a schematic diagram of the disassembled structure of the welding tooling for the outer side ear plate assembly of the motor stator of the utility model;

[0021] Figure 7 It is a longitudinal sectional view of the positioning block;

[0022] Figure 8 It is a top view of the welding tooling used for the outer side ear plate assembly of the motor stator of the utility model in the use state;

[0023] Fig. 9 This is a bottom view of the welding tooling used for the outer ear plate assembly of the motor stator of the utility model in the use state;

[0024] Fig.10 It is a longitudinal sectional view of the welding tooling used for the outer ear plate assembly of the motor stator of the utility model in the use state;

[0025] Fig.11 Schematic diagram of the welding assembly of the ear plate assembly on the outer side of the motor stator on the stator clamping fixture.

[0026] In the figure: A, lower plate; B, base; C, upper cover; D, side plate; D-1, stepped slot hole; D-2, sloped eaves; E, pin column; E-1, through hole one; E-2, circumferential pedestal; F, stator clamping tool; 1, positioning block; 2, positioning rod; 1-1, through hole two; 1-2, through hole three. DETAILED DESCRIPTION

[0027] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0028] Example

[0029] like Figures 6 to 10 As shown, the utility model is a welding tool for the outer ear plate assembly of the motor stator, comprising a positioning block 1 and a positioning rod 2. The positioning block 1 is provided with a through hole 1-1 penetrating the upper and lower end surfaces and a through hole 1-2 penetrating the front and rear end surfaces. The through hole 1-1 is adapted to the pin E, and the through hole 1-2 and the through hole 1-1 on the pin E are both adapted to the positioning rod 2. When welding the ear plate assembly, one end of the pin E provided with the through hole 1-1 passes through the stepped groove D-1 and is connected to the inside of the through hole 2 1-1 of the positioning block 1, the positioning rod 2 is connected to the inside of the through hole 1-1 and the through hole 3 1-2 to lock the pin E and the side plate D, and the annular base E-2 is embedded in the large diameter end of the stepped groove D-1.

[0030] Preferably, the width dimension of the positioning block 1 along the left-right direction is equal to the width dimension of the side panel D.

[0031] Further preferably, the length of the positioning rod 2 is greater than the length of the positioning block 1 along the front-to-back direction.

[0032] Further preferably, the positioning block 1 and the positioning rod 2 are both made of aluminum.

[0033] The utility model discloses a welding tool for the outer side ear plate assembly of a motor stator. The use principle is as follows:

[0034] When welding the ear plate assembly, one end of the pin E provided with the through hole E-1 passes through the stepped groove hole D-1 and is connected to the inside of the through hole 2 1-1 of the positioning block 1, and the positioning rod 2 is connected to the inside of the through hole 1-1 and the through hole 3 1-2 to lock the pin E and the side plate D, and the annular seat E-2 is embedded in the inside of the large diameter end of the stepped groove hole D-1; then, the annular seat E-2 is welded and fixedly connected to the inner side surface of the large diameter end of the stepped groove hole D-1 (see Figure 8-10 ); After welding, the positioning rod 2 is pulled out, the welded ear plate assembly is spliced ​​and welded to the specified vertex position on the outer periphery of the base B on the stator clamping fixture F, the lower end of the side plate D is welded and fixed to the upper end surface of the lower bottom plate A, and the upper end of the side plate D is welded and fixed to the lower end surface of the upper cover body C (see Fig.11 ), wherein the installation principle of the lower plate A, the base B, and the upper cover plate C on the stator clamping fixture F refers to the use principle of a welding device for a locomotive motor stator in the Chinese utility model patent with application number 202121271286.9.

[0035] The utility model discloses a welding tool for a lifting ear plate assembly on the outer side of a motor stator. When welding the lifting ear plate assembly, one end of a pin column provided with a through hole one passes through a stepped slot hole and is connected to the inside of a through hole two of a positioning block. A positioning rod is connected to the inside of the through holes one and three to lock the pin column and the side plate. The annular pedestal is embedded in the inside of the large diameter end of the stepped slot hole. Then the inner side surfaces of the annular pedestal and the large diameter end of the stepped slot hole are welded and fixedly connected. Finally, the welded lifting ear plate assembly is spliced ​​and welded to a specified vertex angle position on the outer peripheral side of the base, thereby ensuring that the axial line of the through hole one on the pin column is located in the vertical direction, ensuring that the shape of the locomotive motor stator is highly accurate and meets the requirements, and improving the qualified rate of the finished product of the locomotive motor stator. At the same time, it is convenient to divide the welding operation of the locomotive motor stator into multiple processes, which helps to improve the overall welding efficiency of the locomotive motor stator. The welding tool for the lifting ear plate assembly on the outer side of the motor stator of the utility model has a simple and reasonable structural design, high feasibility of preparation and implementation, and strong practicality.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A welding tool for a motor stator outer lug plate assembly, characterized in that: The invention comprises a positioning block (1) and a positioning rod (2). The positioning block (1) is provided with a second through hole (1-1) penetrating the upper and lower end surfaces and a third through hole (1-2) penetrating the front and rear end surfaces. The second through hole (1-1) is matched with a pin (E). The third through hole (1-2) and the first through hole (E-1) on the pin (E) are both matched with the positioning rod (2). When welding the ear plate assembly, one end of the pin (E) provided with the first through hole (E-1) passes through the stepped groove hole (D-1) and is connected to the inside of the second through hole (1-1) of the positioning block (1). The positioning rod (2) is connected to the inside of the first through hole (E-1) and the third through hole (1-2) to lock the pin (E) and the side plate (D). The annular pedestal (E-2) is embedded in the large diameter end of the stepped groove hole (D-1).

2. The welding tool for the outer side hanging ear plate assembly of the motor stator according to claim 1, characterized in that: The width dimension of the positioning block (1) along the left-right direction is equal to the width dimension of the side plate (D).

3. The welding tool for the outer side ear plate assembly of the motor stator according to claim 2, characterized in that: The length of the positioning rod (2) is greater than the length of the positioning block (1) along the front-to-back direction.

4. The welding tool for the outer side ear plate assembly of the motor stator according to claim 3, characterized in that: The positioning block (1) and the positioning rod (2) are both made of aluminum.

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