Crimping device for motor short circuit ring welding

Abstract

The utility model provides a crimping device for welding a motor short-circuit ring. The crimping device comprises a pre-pressing crimping jig for pre-crimping a joint of the motor short-circuit ring, a crimping forming jig for performing crimping forming on the pre-crimped joint, a driving assembly and a connecting plate, the pre-pressing crimping jig and the crimping forming jig are respectively arranged on the connecting plate and are arranged in parallel; the pre-pressing crimping jig and the crimping forming jig have the same structure; and the driving assembly is connected with the connecting plate and drives the pre-pressing crimping jig and the crimping forming jig to synchronously press downwards, so that the pre-pressing crimping jig performs pre-pressing on the joint of the motor short circuit ring, and the crimping forming jig performs crimping forming on the pre-crimped joint of the motor short circuit ring. According to the utility model, the connector of the motor short-circuit ring can be quickly and reliably crimped, and the crimped connector is tightly connected, so that the subsequent welding quality of the crimped connector can be improved, and the production efficiency and the production quality of the motor short-circuit ring are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor accessory processing, and more specifically, to a crimping device for welding a motor short-circuit ring. Background Art

[0002] The shaded-pole motor is the simplest type of single-phase AC motor, mainly composed of a rotor assembly, a stator assembly, a wire coil assembly, a bracket assembly, and connecting fasteners. Among them, the stator assembly is mainly composed of a short-circuit ring and the core of the main rotor assembly.

[0003] The short-circuit ring is an indispensable part of the stator assembly of the shaded-pole motor. There are two groups of 4 copper bars on the short-circuit ring, and there are a total of eight joints for the two groups of 4 copper bars each. Moreover, the lengths and positions of the eight joints extending out of the short-circuit ring are different. It is necessary to crimp the joints of each group of 4 copper bars into shape before subsequent welding. Most of the existing production processes for short-circuit rings use the method of workers hammering. The manual operation method not only has low work efficiency, but also causes looseness, so it is easy to produce defective products. Therefore, how to quickly crimp the eight extended joints successfully and make the joint connections tight to improve the subsequent welding quality has become one of the important factors for improving production efficiency and product quality. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the defects and deficiencies in the prior art, and to provide a crimping device for welding a motor short-circuit ring. The crimping device can quickly and reliably crimp the joints of the motor short-circuit ring, and make the joint connections tight after crimping, so as to improve the subsequent welding quality of the joints after crimping into shape, and improve the production efficiency and production quality of the motor short-circuit ring.

[0005] To achieve the above purpose, the utility model is realized through the following technical solutions: A crimping device for welding a motor short-circuit ring, characterized in that: it includes a pre-crimping die for pre-crimping the joints of the motor short-circuit ring, a crimping and forming die for crimping and forming the joints after pre-crimping, a driving component, and a connecting plate; the pre-crimping die and the crimping and forming die are respectively arranged on the connecting plate and are arranged side by side; the pre-crimping die and the crimping and forming die have the same structure; the driving component is connected to the connecting plate to drive the pre-crimping die and the crimping and forming die to press down synchronously, so as to realize the pre-crimping of the joints of the motor short-circuit ring by the pre-crimping die and the crimping and forming of the joints of the pre-crimped motor short-circuit ring by the crimping and forming die.

[0006] In the above scheme, the crimping device of the utility model can install the pre-crimping die and the crimping forming die on the same drive assembly through the connecting plate, so that one drive assembly action can simultaneously complete the pre-crimping process and the crimping forming process of the motor short-circuit ring, and can quickly and reliably crimp the joint of the motor short-circuit ring, and make the joint tightly connected after crimping, thereby improving the subsequent welding quality of the joint after crimping forming, so as to improve the production efficiency and production quality of the motor short-circuit ring. In addition, this can save equipment investment, save equipment size space, and thus reduce the production cost of the motor short-circuit ring.

[0007] The pre-pressing and crimping die and the crimping and forming die both include an upper pressing die plate, a middle die fixing plate and a lower pressing die plate; the upper pressing die plate is connected to a connecting plate; the upper pressing die plate, the middle die fixing plate and the lower pressing die plate are connected in sequence, and the middle die fixing plate serves as a connecting module between the upper pressing die plate and the lower pressing die plate.

[0008] The upper pressing plate is provided with two crimping strips for crimping the joints of two groups of copper strips on the motor short-circuit ring; the crimping strips pass through the middle mold fixing plate and the lower pressing plate, and the crimping surface of the crimping strips protrudes from the end surface of the lower pressing plate.

[0009] The crimping surface of the crimping strip is a special-shaped crimping surface; the middle die fixing plate and the lower die plate are provided with through holes matching the shape of the crimping strip.

[0010] The crimping surface of the crimping strip of the upper crimping plate in the pre-pressing crimping die is larger than the crimping surface of the crimping strip of the upper crimping plate in the crimping forming die. The crimping strip of the pre-pressing crimping die of the utility model can pre-crimp the joint of the motor short-circuit ring, and the joint after pre-crimping is in a close state. Then, the crimping strip of the crimping forming die is used to crimp the pre-crimped joint to ensure that the joint is tightly connected, which is beneficial to the subsequent welding process.

[0011] The pre-pressing and crimping die and the crimping and forming die also include a positioning column for positioning with the lower die; one end of the positioning column is arranged on the upper pressing plate, and the other end passes through the middle die fixing plate and extends out of the middle die fixing plate.

[0012] The end surface of the lower pressing template is provided with a positioning component for positioning with the motor short-circuit ring.

[0013] The positioning assembly comprises a central positioning portion for positioning the middle ring position of the motor short-circuit ring and a positioning strip for positioning the through hole of the motor short-circuit ring frame.

[0014] The driving assembly comprises a driving component, a driving component fixing plate and a guide column; the driving component is arranged on the driving component fixing plate and connected to the connecting plate; the guide column is arranged on the driving component fixing plate and passes through the connecting plate.

[0015] The crimping device further includes a limit component for limiting the descending stroke of the connecting plate; the limit component includes a limit plate and a limit column; the limit column is inserted through the fixed plate of the driving component and connected to the limit plate, and the limit plate is located below the connecting plate.

[0016] The crimping device for welding the short-circuit ring of the motor of the present utility model works as follows: The driving component drives the connecting plate to make the pre-crimping die and the crimping forming die act simultaneously, then the pre-crimping die pre-crimps the joint of the motor short-circuit ring, and at the same time, the crimping forming die crimps and forms the joint of the motor short-circuit ring after the previous pre-crimping. When the pre-crimping die and the crimping forming die are crimping, the positioning column is inserted into the positioning hole of the lower die to realize positioning with the lower die, and the central positioning part and the positioning strip located at the end face of the lower pressing template are respectively positioned with the middle ring position of the motor short-circuit ring and the through hole of the frame body. The crimping strip of the pre-crimping die can pre-crimp the joint of the motor short-circuit ring, and the crimping strip of the crimping forming die crimps and forms the joint after the previous pre-crimping, which can ensure the tight connection of the joint and is beneficial to the subsequent welding process.

[0017] Compared with the prior art, the present utility model has the following advantages and beneficial effects: The crimping device for welding the short-circuit ring of the motor of the present utility model can quickly and reliably crimp the joint of the motor short-circuit ring, and make the joint tightly connected after crimping, so as to improve the subsequent welding quality of the joint after crimping and forming, and improve the production efficiency and production quality of the motor short-circuit ring. Brief Description of the Drawings

[0018] Figure 1 is a schematic diagram of the crimping device for welding the short-circuit ring of the motor of the present utility model Figure 1 ;

[0019] Figure 2 is a schematic diagram of the crimping device for welding the short-circuit ring of the motor of the present utility model Figure 2 ;

[0020] Figure 3 is a schematic diagram of the upper pressing template of the crimping device for welding the short-circuit ring of the motor of the present utility model;

[0021] Figure 4 is a schematic diagram of the middle die fixing plate and the lower pressing template of the crimping device for welding the short-circuit ring of the motor of the present utility model;

[0022] Figure 5 is a schematic diagram of the short-circuit ring of the motor of the present utility model;

[0023] Among them, 1 is the motor short - circuit ring, 1.1 is the joint, 1.2 is the middle ring position, 1.3 is the through - hole in the frame, 2 is the pre - press crimping die, 3 is the crimping - forming die, 4 is the connecting plate, 5 is the upper pressing template, 6 is the middle - die fixing plate, 7 is the lower pressing template, 8 is the crimping strip, 9 is the through - hole, 10 is the positioning post, 11 is the central positioning part, 12 is the positioning strip, 13 is the driving cylinder, 14 is the driving - component fixing plate, 15 is the guide post, 16 is the limiting plate, and 17 is the limiting post. Detailed implementation manners

[0024] The following further describes the present utility model in detail in conjunction with the accompanying drawings and specific implementation manners.

[0025] Embodiment

[0026] As Figures 1 to 5 shown, the crimping device for welding the motor short - circuit ring of the present utility model includes a pre - press crimping die 2 for pre - crimping the joint 1.1 of the motor short - circuit ring 1, a crimping - forming die 3 for crimping and forming the pre - crimped joint 1.1, a driving assembly, and a connecting plate 4. Among them, the pre - press crimping die 2 and the crimping - forming die 3 are respectively arranged on the connecting plate 4 and are arranged in parallel. The pre - press crimping die 2 and the crimping - forming die 3 have the same structure. The driving assembly is connected to the connecting plate 4 and drives the pre - press crimping die 2 and the crimping - forming die 3 to press down synchronously, so as to realize that the pre - press crimping die 2 pre - crimps the joint 1.1 of the motor short - circuit ring 1, and the crimping - forming die 3 crimps and forms the pre - crimped joint 1.1 of the motor short - circuit ring 1.

[0027] Specifically, both the pre - press crimping die 2 and the crimping - forming die 3 include an upper pressing template 5, a middle - die fixing plate 6, and a lower pressing template 7. Among them, the upper pressing template 5 is connected to the connecting plate 4, and the upper pressing template 5, the middle - die fixing plate 6, and the lower pressing template 7 are connected in sequence. The middle - die fixing plate 6 serves as the connection module between the upper pressing template 5 and the lower pressing template 7. In addition, two crimping strips 8 for crimping the joints 1.1 of two groups of copper strips on the motor short - circuit ring 1 are arranged on the upper pressing template 5. The crimping strips 8 pass through the middle - die fixing plate 6 and the lower pressing template 7, and the crimping surfaces of the crimping strips 8 protrude from the end surface of the lower pressing template 7. The crimping surfaces of the crimping strips 8 are special - shaped crimping surfaces, and the middle - die fixing plate 6 and the lower pressing template 7 are of an integral structure and are provided with through - holes 9 matching the shapes of the crimping strips 8.

[0028] The crimping surface of the crimping strip 8 on the upper pressing template 5 of the pre - press crimping die 2 of the present utility model is larger than the crimping surface of the crimping strip 8 on the upper pressing template 5 of the crimping - forming die 3. The pre - press crimping die 2 and the crimping - forming die 3 of the present utility model further include positioning posts 10 for positioning with the lower die. One end of the positioning post 10 is arranged on the upper pressing template 5, and the other end passes through the middle - die fixing plate 6 and extends out of the middle - die fixing plate 6.

[0029] In addition, a positioning component for positioning with the motor short-circuit ring 1 is provided on the end face of the pressing template 7. The positioning component includes a central positioning portion for positioning the middle ring portion 1.2 of the motor short-circuit ring 1 and a positioning strip 12 for positioning the through hole 1.3 of the frame body of the motor short-circuit ring 1.

[0030] The driving component of the present utility model includes a driving cylinder 13, a driving component fixing plate 14, and a guide post 15. Among them, the driving cylinder 13 is arranged on the driving component fixing plate 14 and connected to the connecting plate 4, and the guide post 15 is arranged on the driving component fixing plate 14 and penetrates through the connecting plate 4.

[0031] The crimping device of the present utility model further includes a limiting component for limiting the descending stroke of the connecting plate 4. The limiting component includes a limiting plate 16 and a limiting post 17. The limiting post 17 penetrates through the driving component fixing plate 14 and is connected to the limiting plate 16, and the limiting plate 16 is located below the connecting plate 4.

[0032] The crimping device for welding the motor short-circuit ring of the present utility model works as follows: The driving cylinder 13 drives the connecting plate 4 to make the pre-crimping die 2 and the crimping and forming die 3 act simultaneously. Then, the pre-crimping die 2 pre-crimps the joint 1.1 of the motor short-circuit ring 1, and at the same time, the crimping and forming die 3 crimps and forms the joint 1.1 of the motor short-circuit ring 1 after the previous pre-crimping. When the pre-crimping die 2 and the crimping and forming die 3 are crimping, the positioning post 10 is inserted into the positioning hole of the lower die to achieve positioning with the lower die. The central positioning portion 11 and the positioning strip 12 on the end face of the pressing template 7 are respectively positioned with the middle ring portion 1.2 and the through hole 1.3 of the frame body of the motor short-circuit ring 1. The crimping strip 8 of the pre-crimping die 2 can pre-crimp the joint 1.1 of the motor short-circuit ring 1, and the crimping strip 8 of the crimping and forming die 3 crimps and forms the joint 1.1 after the previous pre-crimping, so as to ensure that the joint 1.1 is tightly connected, which is beneficial to the subsequent welding process.

[0033] The above embodiments are the preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present utility model shall be equivalent replacement methods and are all included in the protection scope of the present utility model.

Claims

1. A crimping device for welding a short-circuit ring of an electric motor, characterized in that: It includes a pre - crimping die for pre - crimping the joints of the motor short - circuit ring, a crimping - forming die for crimping and forming the joints after pre - crimping, a driving assembly, and a connecting plate; the pre - crimping die and the crimping - forming die are respectively arranged on the connecting plate and are arranged side by side; the pre - crimping die and the crimping - forming die have the same structure; the driving assembly is connected to the connecting plate and drives the pre - crimping die and the crimping - forming die to press down synchronously, so that the pre - crimping die pre - crimps the joints of the motor short - circuit ring, and the crimping - forming die crimps and forms the joints of the pre - crimped motor short - circuit ring.

2. The crimping device for welding the short - circuit ring of the motor according to claim 1, wherein: Both the pre - crimping die and the crimping - forming die include an upper pressing template, a middle die fixing plate, and a lower pressing template; the upper pressing template is connected to the connecting plate; the upper pressing template, the middle die fixing plate, and the lower pressing template are connected in sequence, and the middle die fixing plate serves as the connecting module between the upper pressing template and the lower pressing template.

3. The crimping device for welding the motor short-circuit ring according to claim 2, wherein: The upper pressing template is provided with two pressing strips for crimping the joints of two groups of copper bars on the motor short - circuit ring; the pressing strips pass through the middle die fixing plate and the lower pressing template, and the pressing surfaces of the pressing strips protrude from the end surface of the lower pressing template.

4. The crimping device for welding the motor short-circuit ring according to claim 3, characterized in that: The pressing surfaces of the pressing strips are special - shaped pressing surfaces; the middle die fixing plate and the lower pressing template are provided with through - holes matching the shapes of the pressing strips.

5. The crimping device for welding the motor short-circuit ring according to claim 3, characterized in that: The pressing surface of the pressing strip on the upper pressing template of the pre - crimping die is larger than the pressing surface of the pressing strip on the upper pressing template of the crimping - forming die.

6. The crimping device for welding the motor short-circuit ring according to claim 2, wherein: The pre - crimping die and the crimping - forming die further include positioning columns for positioning with the lower die; one end of the positioning column is arranged on the upper pressing template, and the other end passes through the middle die fixing plate and extends out of the middle die fixing plate.

7. The crimping device for welding the short-circuit ring of an electric motor according to claim 2, characterized in that: The end surface of the lower pressing template is provided with a positioning assembly for positioning with the motor short - circuit ring.

8. The crimping device for welding the motor short-circuit ring according to claim 7, characterized in that: The positioning assembly includes a center positioning part for positioning the middle ring position of the motor short - circuit ring and a positioning strip for positioning the through - holes of the motor short - circuit ring frame.

9. The crimping device for welding the short - circuit ring of an electric motor according to claim 1, characterized in that: The driving assembly includes a driving part, a driving - part fixing plate, and guide columns; the driving part is arranged on the driving - part fixing plate and is connected to the connecting plate; the guide columns are arranged on the driving - part fixing plate and penetrate the connecting plate.

10. The crimping device for welding the motor short-circuit ring according to claim 9, characterized in that: This crimping device further includes a limit assembly for limiting the downward stroke of the connecting plate; the limit assembly includes a limit plate and a limit column; the limit column is arranged on the driving - part fixing plate and is connected to the limit plate, and the limit plate is located below the connecting plate.

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