Clamping device for new energy automobile motor shell machining

Abstract

The utility model discloses a clamping device for machining a motor shell of a new energy automobile. The clamping device comprises a bottom plate, a supporting block, an auxiliary supporting block, a limiting block, an elastic supporting block, an encircling device, a lower end face pressing device, an upper end face pressing device, a limiting device and a product. The four upper end face downward pressing devices are connected to the annular position, slightly larger than the cylindrical part of a product by one circle, of the bottom plate, the limiting device and the three surrounding devices are connected to the positions, spaced by the upper end face downward pressing devices, of the bottom plate, and the three lower end face downward pressing devices are connected to the positions, between the surrounding devices on the opposite sides of the limiting device and the upper end face downward pressing devices, of the bottom plate. Supporting blocks, auxiliary supporting blocks, limiting blocks and elastic supporting blocks are connected to the portions, between the devices, of the bottom plate. Compared with the prior art, the horizontal position of a product is limited through the surrounding device and the limiting block, and then the vertical position of the product is limited through the supporting block, the pressing device and the limiting device, so that the product is clamped more accurately and stably, and the machining precision and the production efficiency of the product are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a clamping device for processing motor housings of new energy vehicles. Background Art

[0002] The motor housing is a key component in the drive system of new energy vehicles. It carries the motor and is involved in the motor's heat dissipation, protection and other functions. Therefore, the processing quality of the motor housing directly affects the performance of the entire drive system. In the processing of new energy vehicle motor housings, conventional friction welding is generally used to weld the motor housings. The high-speed rotation of the welding head causes it to rub against the welding part, causing the material temperature of the connection part to rise and soften. At the same time, the material is stirred and rubbed to complete the welding. During the friction process between the welding head and the motor housing, relative stress will also be generated on the motor housing, affecting the processing accuracy of the motor housing. Therefore, a suitable clamping device is required to ensure the accuracy and stability of the product during processing.

[0003] The existing technology for clamping motor housings of new energy vehicles usually uses chucks, magnetic clamps or clamping blocks to clamp and process the motor housings of new energy vehicles. There are problems such as unstable clamping force of the clamps or uneven force on the product, which leads to unstable clamping of the motor housing. The accuracy of product processing cannot be guaranteed, and the product processing production efficiency is low. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a clamping device for processing the motor housing of new energy vehicles. By using support members, auxiliary support members and elastic support members to support the bottom of the product, the limit block and the embracing device define the horizontal position of the product, and the downward pressure device and the limit device stabilize the vertical position of the product, a more precise and stable clamping effect is achieved for the processed product, the accuracy and production efficiency of product processing are improved, consumables are effectively reduced, and production costs are reduced.

[0005] The utility model is achieved through the following technical solutions:

[0006] A clamping device for processing the motor housing of a new energy vehicle includes a base plate, a limit block and a limit device, the limit block and the limit device are fixedly connected to the base plate, a circle of pressing devices are fixedly connected to the top surface of the base plate on the opposite side of the limit block and the limit device, an embracing device is fixedly connected to the base plate separated by the pressing device, and a support block, an auxiliary support block and an elastic support block are fixedly connected to the base plate between the limit device, the pressing device and the embracing device.

[0007] Furthermore, the limiting device includes a motor, and the limiting block is connected with a groove adapted to the edge shape of the non-cylindrical part of the product.

[0008] Furthermore, there are two limit blocks, which are respectively fixedly connected to the top surface of the bottom plate between the limit device and the two nearest pressing devices.

[0009] Furthermore, the pressing device includes an oil cylinder and a pressing rod, and the pressing device includes four upper end surface pressing devices and three lower end surface pressing devices.

[0010] Furthermore, the upper end surface pressing device is relatively equidistantly distributed in annular positions around the cylindrical part of the product. The height of the upper end surface pressing device is similar to the distance from the top surface of the product to the top surface of the bottom plate. The length of the pressure rod of the upper end surface pressing device is slightly larger than the shortest distance from the output end of the cylinder to the top surface of the product.

[0011] Furthermore, the lower end surface pressing device is arranged next to the protruding part of the lower end of the cylindrical part of the product. The height of the lower end surface pressing device is similar to the distance from the top surface of the lower end of the cylindrical part of the product to the top surface of the bottom plate. The length of the pressure rod of the lower end surface pressing device is slightly larger than the shortest distance from the output end of the cylinder to the top surface of the lower end of the cylindrical part of the product.

[0012] Furthermore, the embracing device includes a support, a cylinder and a clamping block. The embracing device has three parts, which are arranged in annular positions around the cylindrical part of the product. The extension and retraction direction of the output shaft of the cylinder is opposite to the central axis of the cylindrical part of the product. The curvature and shape of the contact surface between the clamping block and the cylindrical part of the product are adapted to the circumferential curvature and surface shape of the cylindrical part of the product.

[0013] Furthermore, the support block and the elastic support block are connected to the top surface of the base plate opposite to the bottom edge and bottom surface of the product. The shapes of the support block and the elastic support block are adapted to the shapes of the bottom edge and bottom surface of the product. The top surface of the elastic support block is connected to a spring.

[0014] Furthermore, there are two auxiliary support blocks, which are connected to the top surface of the bottom plate below the protruding portion at the lower end of the cylindrical portion of the product.

[0015] Compared with the prior art, the present invention has the following obvious advantages:

[0016] 1. Since the limit block of the present invention is connected with a groove adapted to the edge shape of the non-cylindrical part of the product, the general position of the product on the clamping device can be directly determined, and the horizontal position of the cylindrical part of the product is limited by the embracing device, which can effectively limit the horizontal upward position of the product.

[0017] 2. The present invention uses elastic support members, support members and auxiliary support members to support the bottom of the product, and can elastically support the product when the downward pressing device limits the downward pressing of the product. It can effectively buffer the pressure applied by the downward pressing device, prevent the product from being deformed due to sudden external pressure, and limit the lowest position of the product.

[0018] 3. In the present invention, since the pressing device and the embracing device are connected to the top surface of the bottom plate around the cylindrical part of the product, the pressure rod of the pressing device and the clamping block of the embracing device apply uniform pressure to the cylindrical part of the product, thereby achieving uniform stress on the product and ensuring stable clamping of the product.

[0019] 4. The utility model uses support members, auxiliary support members and elastic support members to support the bottom of the product, the limit blocks and the embracing device limit the horizontal position of the product, and the downward pressure device and the limit device stabilize the vertical position of the product, thereby achieving a more precise and stable clamping effect on the processed product, improving the accuracy and production efficiency of product processing, effectively reducing consumables, and lowering production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the product structure;

[0021] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 3 Schematic diagram of the structure of the clamping device.

[0023] The relationship between the reference numerals and the corresponding names is as follows:

[0024] 1. Bottom plate, 2. Embracing device, 3. Upper end surface pressing device, 4. Lower end surface pressing device, 5. Limiting device, 6. Support block, 7. Auxiliary support block, 8. Elastic support block, 9. Product. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below with reference to the accompanying drawings.

[0026] like Figure 1 、 Figure 2 and Figure 3As shown, the utility model provides a clamping device for processing the motor housing of a new energy vehicle, comprising a base plate 1, a pressing device, an embracing device 2, a limiting device 5, and a supporting block; in this embodiment, the limiting device 5 comprises a motor, which is fixedly connected to the top surface of the base plate 1, a pressing device is fixedly connected to the top surface of the base plate 1 on the opposite side of the limiting device 5, two limiting blocks 6 are fixedly connected to the top surface of the base plate 1 between the limiting device 5 and the two nearest pressing devices, and a groove is connected on the limiting block 6 to adapt to the edge shape of the non-cylindrical part of the product 9; the pressing device 5 is fixedly connected to the top surface of the base plate 1 on the opposite side of the limiting device 5, and the two limiting blocks 6 are fixedly connected to the top surface of the base plate 1 between the limiting device 5 and the two nearest pressing devices. The device includes an oil cylinder and a pressure rod. The pressing device includes four upper end surface pressing devices 3 and three lower end surface pressing devices 4. The upper end surface pressing devices 3 are relatively equidistantly distributed and fixedly connected to the top surface of the bottom plate 1 around the cylindrical part of the product 9. The height of the upper end surface pressing device 3 is similar to the distance between the top surface of the product 9 and the top surface of the bottom plate 1. The length of the pressure rod of the upper end surface pressing device 3 is slightly larger than the shortest distance from the output end of the oil cylinder to the top surface of the product 9. The lower end surface pressing device 4 is arranged next to the protruding part at the lower end of the cylindrical part of the product 9. The height of the lower end surface pressing device 4 is The length of the pressure rod of the lower end pressing device 4 is slightly longer than the shortest distance from the output end of the oil cylinder to the top surface of the lower end of the cylindrical part of the product 9; the top surface of the bottom plate 1 separated by the upper end pressing device 3 is fixedly connected with three-piece embracing devices 2, which include a support, a cylinder and a clamping block. The extension direction of the output shaft of the cylinder is exactly opposite to the central axis of the cylindrical part of the product 9. The curvature and shape of the contact surface between the clamping block and the cylindrical part of the product 9 are adapted to the circumferential curvature and surface shape of the cylindrical part of the product 9. ; A support block is fixedly connected to the top surface of the bottom plate 1 between the limiting device 5, the pressing device and the embracing device 2, and the support block includes a support block 6, an auxiliary support block 7 and an elastic support block 8. The support block 6 and the elastic support block 8 are connected to the top surface of the bottom plate 1 opposite to the edge and bottom surface of the bottom surface of the product 9. The shapes of the support block 6 and the elastic support block 8 are adapted to the shape of the edge and bottom surface of the bottom surface of the product 9. A spring is connected to the top surface of the elastic support block 8. The auxiliary support block 7 has two pieces, which are connected to the top surface of the bottom plate 1 below the protruding part at the lower end of the cylindrical part of the product 9.

[0027] When the present invention is used, the operator determines that the limit block of the upper limit device 5 on the clamping device, the clamping block of the embracing device 2 and the pressure rod of the pressing device are all in the open state. The operator compares the non-cylindrical part of the product 9 to be processed with the groove shape of the limit block 6 connected to the bottom plate 1, and places the product 9 in the middle position surrounded by the limit device 5, the embracing device 2 and the pressing device. The non-cylindrical part of the product 9 is embedded in the groove of the limit block 6, and the bottom of the cylindrical part of the product 9 is supported by the elastic support block 8 and the spring connected to the top surface of the elastic support block 8; the operator turns on the embracing device 2, and the cylinders of the three embracing devices 2 simultaneously push the telescopic rod to extend, pushing the clamping block connected to the top of the telescopic rod forward until the three clamping blocks are all in contact with the outer wall of the cylindrical part of the product 9, limiting the position of the product 9 in the horizontal direction, and the embracing device 2 stops running.

[0028] After the horizontal position of product 9 is limited by limit block 6 and embracing device 2, the pressing device operates, and the oil cylinders of upper end pressing device 3 and lower end pressing device 4 drive the telescopic rod to rise at the same time. The pressure rod movably connected to the top of the oil cylinder is pressed down under the action of lever force, and continues to press down after contacting the surface of product 9. The spring at the top of the elastic support block 8 is compressed until the bottom of the product 9 and the protruding part at the lower end of the cylindrical part of product 9 are respectively supported by support block 6 and auxiliary support block 7. The pressing device stops operating, the limiting device 5 operates, and the motor drives the limiting block connected to the top of the rotating shaft to rotate. After the end of the limiting block rotates to above one end of the non-cylindrical part of product 9, the limiting device 5 stops operating, and the vertical position of product 9 is limited by pressing device and limiting device 5; the clamping device realizes accurate and stable clamping of product 9 to be processed, and product 9 can be processed more accurately and effectively.

[0029] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A clamping device for machining a motor housing of a new energy vehicle, comprising a base plate (1), a support block (6) and a limit device (5), wherein the support block (6) and the limit device (5) are fixedly connected to the base plate (1), and characterized in that: A circle of pressing devices is fixedly connected to the top surface of the bottom plate (1) in the opposite direction of the support block (6) and the limiting device (5); an embracing device (2) is fixedly connected to the bottom plate (1) separated by the pressing devices; and a support block (6), an auxiliary support block (7) and an elastic support block (8) are fixedly connected to the bottom plate (1) between the limiting device (5), the pressing device and the embracing device (2).

2. The clamping device for machining a motor housing of a new energy vehicle according to claim 1, characterized in that: The limiting device (5) includes a motor, and the supporting block (6) is connected with a groove adapted to the edge shape of the non-cylindrical part of the product (9).

3. The clamping device for processing a motor housing of a new energy vehicle according to claim 1 is characterized in that: There are two support blocks (6), which are respectively fixedly connected to the top surface of the bottom plate (1) between the limiting device (5) and the two nearest pressing devices.

4. The clamping device for machining a motor housing of a new energy vehicle according to claim 1, characterized in that: The pressing device comprises an oil cylinder and a pressing rod, and the pressing device comprises four upper end surface pressing devices (3) and three lower end surface pressing devices (4).

5. The clamping device for machining a motor housing of a new energy vehicle according to claim 4, characterized in that: The upper end surface pressing device (3) is relatively equidistantly distributed at annular positions around the cylindrical portion of the product (9). The height of the upper end surface pressing device (3) is similar to the distance between the top surface of the product (9) and the top surface of the bottom plate (1). The length of the pressing rod of the upper end surface pressing device (3) is slightly greater than the shortest distance from the output end of the oil cylinder to the top surface of the product (9).

6. The clamping device for machining a motor housing of a new energy vehicle according to claim 4, characterized in that: The lower end surface pressing device (4) is arranged beside the protruding portion at the lower end of the cylindrical portion of the product (9), and the height of the lower end surface pressing device (4) is similar to the distance from the top surface of the lower end of the cylindrical portion of the product (9) to the top surface of the bottom plate (1). The length of the pressing rod of the lower end surface pressing device (4) is slightly greater than the shortest distance from the output end of the oil cylinder to the top surface of the lower end of the cylindrical portion of the product (9).

7. The clamping device for machining a motor housing of a new energy vehicle according to claim 1, characterized in that: The embracing device (2) comprises a support, a cylinder and a clamping block. The embracing device (2) has three parts and is arranged at annular positions around the cylindrical part of the product (9). The extension and contraction direction of the output shaft of the cylinder is directly opposite to the central axis of the cylindrical part of the product (9). The curvature and shape of the contact surface between the clamping block and the cylindrical part of the product (9) are adapted to the circumferential curvature and surface shape of the cylindrical part of the product (9).

8. The clamping device for machining a motor housing of a new energy vehicle according to claim 1, characterized in that: The support block (6) and the elastic support block (8) are connected to the top surface of the bottom plate (1) directly opposite the bottom edge and bottom surface of the product (9); the shapes of the support block (6) and the elastic support block (8) are adapted to the shapes of the bottom edge and bottom surface of the product (9); and the top surface of the elastic support block (8) is connected to a spring.

9. The clamping device for machining a motor housing of a new energy vehicle according to claim 1, characterized in that: The auxiliary support blocks (7) are in two pieces, and the auxiliary support blocks (7) are connected to the top surface of the bottom plate (1) below the protruding portion at the lower end of the cylindrical portion of the product (9).

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