Welding self-adaptive connection positioning mechanism

Abstract

The utility model discloses a welding self-adaption connection positioning mechanism which can overcome generated vibration and shaking in a self-adaption mode in the welding process of a motor stator. The welding base comprises a base body and a center guide structure, the center guide structure comprises an inwards-concave positioning circular truncated cone and an upwards-convex positioning circular truncated cone, the inwards-concave positioning circular truncated cone is located in the center of the base body, and the upwards-convex positioning circular truncated cone is located on the upper surface of the center of the inwards-concave positioning circular truncated cone and is arranged in an upwards-convex mode; notch holes are formed in the positions, corresponding to three motor stator pin copper sheets, of the inwards-concave positioning circular truncated cone respectively, radial guide grooves are formed in the positions, corresponding to outer rings of the notch holes, of the upper surface of the base body respectively, and guide grooves are formed in the positions, corresponding to inner rings of the notch holes, of the lower surface of the inwards-concave positioning circular truncated cone respectively. Three groups of first springs; three groups of second springs; the three groups of pressing blocks comprise outer guide ends and inner pressing ends; and the three groups of contact blocks comprise upward convex contact ends and internal guide ends.

Description

Technical Field

[0001] The utility model relates to the technical field of motor stator assembly, in particular to a welding adaptive connection positioning mechanism. Background Art

[0002] Motor stator structure Figure 1 It has three downward-convex motor stator pin copper sheets. During welding, the motor stator pin copper sheets are fixedly placed in the fixed clamping mechanism of the mounting base. During the motor stator welding process, vibration and shaking are inevitable. Sliding friction occurs between the motor stator pin copper sheets and the fixed clamping mechanism, which leads to wear of the copper sheets and affects the subsequent grounding effect. Therefore, it is urgently necessary to develop a pin clamping mechanism that can adapt to vibration and shaking. Summary of the invention

[0003] In response to the above problems, the utility model provides a welding adaptive connection positioning mechanism, which can adaptively overcome the vibration and shaking generated during the welding process of the motor stator, ensure the integrity and aesthetics of the copper sheet at the position of the motor stator pin, and ensure the reliable grounding effect of the pin after subsequent assembly.

[0004] A welding adaptive connection positioning mechanism, characterized in that it comprises:

[0005] A welding base, comprising a base body and a center guide structure, wherein the center guide structure comprises an inner concave positioning truncated cone and an upper convex positioning truncated cone, wherein the inner concave positioning truncated cone is located at the center of the base body, and the upper convex positioning truncated cone is located on the central upper surface of the inner concave positioning truncated cone and arranged in an upper convex manner, wherein the inner concave positioning truncated cone is provided with notch holes at positions corresponding to three copper sheets of the stator pins of the motor, and radial guide grooves are provided at outer ring positions corresponding to the notch holes on the upper surface of the base body, and guide grooves are provided at inner ring positions corresponding to the notch holes on the lower surface of the inner concave positioning truncated cone;

[0006] Three sets of first springs;

[0007] three sets of second springs;

[0008] Three groups of pressure blocks, including an outer guide end and an inner pressure attachment end;

[0009] and three groups of contact blocks, which include an upward convex contact end and an internal guide end;

[0010] Each group of notch holes corresponds to a first spring, a second spring, a pressure block, and a contact block. The first spring is embedded in the guide groove, the radial outer end of the first spring is connected to the internal guide end, the internal guide end is embedded in the guide groove, the upper convex contact end is located at the outer end and convexly extends above the notch hole, the radial distance of the notch hole enables the upper convex contact end to have a radial adjustment distance, the inner pressure end of the pressure block is arranged toward the outer facade of the upper convex contact end, the outer guide end of the pressure block is embedded in the radial guide groove, the second spring is arranged in the radial guide groove, and the radial inner end of the second spring is mounted on the outer guide end of the pressure block;

[0011] In the working state, the three stator pin copper sheets of the motor stator are respectively inserted into the clamping space formed between the three groups of corresponding inner pressure attachment ends and the upper convex contact ends.

[0012] It is further characterized by:

[0013] It also includes three groups of limit blocks, each group of pressure blocks is correspondingly provided with a group of limit blocks, the limit blocks include an upper pressure plate and an outer lower protrusion, the upper pressure plate is fixed to the upper surface position of the radial guide groove of the seat body by fasteners, and covers the radial guide groove of the corresponding area, the outer lower protrusion is embedded in the radial outer end of the radial guide groove, the upper surface of the pressure block is arranged in close contact with the lower surface of the upper pressure plate, and the radial outer end of the second spring is arranged in close contact with the inner end of the outer lower protrusion, which ensures that the radial position of the pressure block is stable and reliable;

[0014] The upper pressing plate is provided with waist-shaped holes on both sides corresponding to the radial guide, and the fastener adjusts the pre-compression elastic force of the second spring by fastening the corresponding position of the waist-shaped holes, thereby adjusting the clamping force on the stator pin copper sheet;

[0015] It also includes a bottom plate, the lower surface of the concave positioning truncated cone is embedded with three groups of first springs, and the inner guide end rear cover of the contact block is equipped with the bottom plate;

[0016] The welding base is also fixed with an upper convex positioning column and an inner concave positioning groove, wherein the upper convex positioning column is used to reliably position the corresponding positioning column groove of the motor stator, and the inner concave positioning groove is used to reliably position the lower convex part of the outer ring area of ​​the motor positioning;

[0017] The top inner end of the internal pressure attachment end is provided with a first guiding inclined surface, and the top outer end of the upper convex contact end is provided with a second guiding inclined surface. The first guiding inclined surface and the second guiding inclined surface are arranged opposite to each other to form a guiding notch from top to bottom for quickly and reliably clamping the stator pin copper sheet.

[0018] After adopting the above technical scheme, the motor stator is positioned by the radial center of the convex positioning cone, and then the three stator pin copper sheets of the motor stator are respectively inserted into the clamping space formed between the three groups of corresponding internal pressure attached ends and the convex contact ends. During the welding process, the three groups of first springs and the three groups of third springs can reliably and adaptively move, so that the pin clamping adopts a floating clamping positioning connection. During the welding process of the motor stator, it can adaptively overcome the vibration and shaking generated, ensure the integrity and aesthetics of the copper sheet at the pin position of the motor stator, and ensure the reliable grounding effect of the pin after subsequent assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the motor stator applicable to the utility model;

[0020] Figure 2 It is a three-dimensional schematic diagram of the utility model;

[0021] Figure 3 It is a three-dimensional schematic diagram of the motor stator assembled in the utility model;

[0022] Figure 4 This is a three-dimensional diagram of the utility model after removing the welding base;

[0023] Figure 5 It is a three-dimensional diagram of the welding base of the utility model;

[0024] Figure 6 It is an exploded perspective view of the welding base and the bottom plate of the utility model;

[0025] The names corresponding to the serial numbers in the figure are as follows:

[0026] Motor stator 10, stator housing 11, stator pin copper sheet 12, alignment column groove 13, lower convex part 14;

[0027] Welding base 20, upper convex positioning column 21, inner concave positioning groove 22, first spring 30, second spring 40, pressing block 50, outer guide end 51, inner pressure attachment end 52, first guiding inclined surface 521, contact block 60, upper convex contact end 61, second guiding inclined surface 611, inner guiding end 62, limiting block 70, upper pressing plate 71, waist-shaped hole 711, outer end lower convex block 72, bottom plate 80, seat body 90, center guiding structure 100, inner concave positioning truncated table 110, upper convex positioning truncated table 120;

[0028] Notch hole 1, radial guide groove 2, guide groove 3, guide notch 4. DETAILED DESCRIPTION

[0029] Applicable to the motor stator 10 of the utility model, see Figure 1, including a stator housing 11, three groups of downwardly convex stator pin copper sheets 12, alignment column grooves 13 and a plurality of outer ring area downwardly convex parts 14.

[0030] A welding adaptive connection positioning mechanism, see Figure 1-Figure 6 , which includes a welding base 20, three groups of first springs 30, three groups of second springs 40, three groups of pressure blocks 50, three groups of contact blocks 60, three groups of limit blocks 70, and a bottom plate 80;

[0031] The welding base 20 includes a base body 90 and a center guide structure 100. The center guide structure 100 includes an inner concave positioning truncated cone 110 and an upper convex positioning truncated cone 120. The inner concave positioning truncated cone 110 is located at the center of the base body 90, and the upper convex positioning truncated cone 120 is located on the central upper surface of the inner concave positioning truncated cone 110 and arranged in an upper convex manner. The inner concave positioning truncated cone 110 is provided with notch holes 1 at positions corresponding to the three motor stator pin copper sheets 12, and radial guide grooves 2 are provided at outer ring positions corresponding to the notch holes 1 on the upper surface of the base body 90, and guide grooves 3 are provided at inner ring positions corresponding to the notch holes 1 on the lower surface of the inner concave positioning truncated cone 110.

[0032] Each group of pressure blocks 50 includes an outer guide end 51 and an inner pressure attachment end 52; each group of contact blocks 60 includes an upper convex contact end 61 and an inner guide end 62; each group of limit blocks 70 includes an upper pressure plate 71 and an outer lower convex block 72;

[0033] Each group of notch holes 1 corresponds to a first spring 30, a second spring 40, a pressure block 50, a contact block 60, and a limit block 70. The first spring 30 is embedded in the guide groove 3. The radial outer end of the first spring 30 is connected to the internal guide end 62, and the internal guide end 62 is embedded in the guide groove 3. The upper convex contact end 61 is located at the outer end and convexly extends above the notch hole 1. The radial distance of the notch hole 1 enables the upper convex contact end 61 to have a radial adjustment distance. The inner pressure attachment end 52 of the pressure block 50 is arranged toward the outer facade of the upper convex contact end 61. The outer guide end 51 of the pressure block 50 is embedded in the radial guide groove 2. The second spring 40 is arranged in the radial guide groove 2. The radial inner end of the second spring 40 is mounted on the outer guide end 51 of the pressure block 50.

[0034] Each group of pressure blocks 50 is correspondingly provided with a group of limit blocks 70. The upper pressure plate 71 is fixed to the upper surface position of the radial guide groove 2 of the seat body 90 by fasteners and covers the radial guide groove 2 in the corresponding area. The outer end lower protrusion 72 is embedded in the radial outer end of the radial guide groove 2. The upper surface of the pressure block 50 is arranged in close contact with the lower surface of the upper pressure plate 71. The radial outer end of the second spring 40 is arranged in close contact with the inner end of the outer end lower protrusion 72, which ensures that the radial position of the pressure block 50 is stable and reliable.

[0035] The lower surface of the concave positioning truncated cone 110 is embedded with three sets of first springs 30 and three sets of inner guide ends 62 of contact blocks 60, and the back cover is equipped with a bottom plate 80;

[0036] In the working state, the three stator pin copper sheets 12 of the motor stator 10 are respectively inserted into the clamping space formed between the three groups of corresponding inner pressure attachment ends and the upper convex contact ends.

[0037] In specific implementation, waist-shaped holes 711 are respectively provided on both sides of the upper pressure plate 71 corresponding to the radial guide, and the fastener adjusts the pre-compression elastic force of the second spring 40 by tightening the corresponding position of the waist-shaped holes 711, thereby adjusting the clamping force on the stator pin copper sheet 12.

[0038] In specific implementation, the welding base 20 is also fixed with an upper convex positioning column 21 and an inner concave positioning groove 22. The upper convex positioning column 21 is used to reliably position the corresponding positioning column groove 13 of the motor stator 10, and the inner concave positioning groove 22 is used to reliably position the lower convex part 14 of the outer ring area of ​​the motor positioning.

[0039] In a specific embodiment, a first guiding bevel 521 is provided at the top inner end of the internal pressure attachment end 52, and a second guiding bevel 611 is provided at the top outer end of the upper convex contact end 61. The first guiding bevel 521 and the second guiding bevel 611 are arranged opposite to each other to form a guiding notch 4 from top to bottom, which is used to quickly and reliably clamp the stator pin copper sheet 12.

[0040] Its working principle is as follows: the motor stator is positioned radially at the center by the convex positioning cone, and then the three stator pin copper sheets of the motor stator are respectively inserted into the clamping space formed between the three groups of corresponding internal pressure attachment ends and the convex contact ends. During the welding process, the three groups of first springs and the three groups of third springs can reliably and adaptively move, so that the pin clamping adopts a floating clamping positioning connection. During the welding process of the motor stator, it can adaptively overcome the vibration and shaking generated, ensure the integrity and beauty of the copper sheet at the pin position of the motor stator, and ensure the reliable grounding effect of the pin after subsequent assembly.

[0041] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A welding adaptive connection positioning mechanism, characterized in that: It includes: A welding base, comprising a base body and a center guide structure, wherein the center guide structure comprises an inner concave positioning truncated cone and an upper convex positioning truncated cone, wherein the inner concave positioning truncated cone is located at the center of the base body, and the upper convex positioning truncated cone is located on the central upper surface of the inner concave positioning truncated cone and arranged in an upper convex manner, wherein the inner concave positioning truncated cone is provided with notch holes at positions corresponding to three copper sheets of the stator pins of the motor, and radial guide grooves are provided at outer ring positions corresponding to the notch holes on the upper surface of the base body, and guide grooves are provided at inner ring positions corresponding to the notch holes on the lower surface of the inner concave positioning truncated cone; Three sets of first springs; three sets of second springs; Three groups of pressure blocks, including an outer guide end and an inner pressure attachment end; and three groups of contact blocks, which include an upward convex contact end and an internal guide end; Each group of notch holes corresponds to a first spring, a second spring, a pressure block, and a contact block. The first spring is embedded in the guide groove, the radial outer end of the first spring is connected to the internal guide end, the internal guide end is embedded in the guide groove, the upper convex contact end is located at the outer end and convexly extends above the notch hole, the radial distance of the notch hole enables the upper convex contact end to have a radial adjustment distance, the inner pressure end of the pressure block is arranged toward the outer facade of the upper convex contact end, the outer guide end of the pressure block is embedded in the radial guide groove, the second spring is arranged in the radial guide groove, and the radial inner end of the second spring is mounted on the outer guide end of the pressure block; In the working state, the three stator pin copper sheets of the motor stator are respectively inserted into the clamping space formed between the three groups of corresponding inner pressure attachment ends and the upper convex contact ends.

2. A welding adaptive connection positioning mechanism according to claim 1, characterized in that: It also includes three groups of limit blocks, each group of pressure blocks corresponds to a group of limit blocks, the limit blocks include an upper pressure plate and an outer lower protrusion, the upper pressure plate is fixed to the upper surface position of the radial guide groove of the seat body by fasteners, and covers the radial guide groove of the corresponding area, the outer lower protrusion is embedded in the radial outer end of the radial guide groove, the upper surface of the pressure block is arranged in close contact with the lower surface of the upper pressure plate, and the radial outer end of the second spring is arranged in close contact with the inner end of the outer lower protrusion.

3. A welding adaptive connection positioning mechanism according to claim 2, characterized in that: The upper pressure plate is provided with waist-shaped holes on both sides corresponding to the radial guide, and the fasteners adjust the pre-compression elastic force of the second spring by fastening the corresponding positions of the waist-shaped holes.

4. The welding adaptive connection positioning mechanism according to claim 1, characterized in that: It also includes a bottom plate. Three groups of first springs are embedded on the lower surface of the concave positioning truncated cone, and the inner guide end rear cover of the contact block is equipped with the bottom plate.

5. The welding adaptive connection positioning mechanism according to claim 1, characterized in that: The welding base is also fixed with an upper convex positioning column and an inner concave positioning groove. The upper convex positioning column is used to reliably position the corresponding positioning column groove of the motor stator, and the inner concave positioning groove is used to reliably position the lower convex part of the outer ring area of ​​the motor.

6. The welding adaptive connection positioning mechanism according to claim 1, characterized in that: The top inner end of the internal pressure attachment end is provided with a first guiding inclined surface, and the top outer end of the upper convex contact end is provided with a second guiding inclined surface. The first guiding inclined surface and the second guiding inclined surface are arranged opposite to each other to form a guiding notch from top to bottom for quickly and reliably clamping the stator pin copper sheet.

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