Clamping and positioning device applied to automatic production of new energy gearbox shell

Abstract

The invention discloses a clamping and positioning device applied to automatic production of a new energy gearbox shell, and relates to the technical field of gearbox production, the clamping and positioning device comprises a bearing frame, a base is slidably mounted at the top of the bearing frame, and a plurality of first-type positioning units and a plurality of second-type positioning units are arranged on the edge of the top of the base; the linear positioning unit comprises an adjusting rod slidably connected with the base, the top of the adjusting rod is connected with a limiting piece in a clamped mode, a plurality of clamping grooves are formed in the middle of the adjusting rod, and the inner wall of each clamping groove is connected with a limiting abutting block in a clamped mode. The second-type positioning unit comprises a telescopic rod, and the top of the telescopic rod is fixedly connected with a mounting plate; the gearbox shell is fixed and limited from different positions through the positioning units with different structures and functions, so that the clamping force of the shell is uniformly distributed on each clamping point of a workpiece in the machining process, the stress balance of the workpiece in the machining process is ensured, and the damage is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of gearbox production, and in particular to a clamping and positioning device used in the automated production of new energy gearbox housings. Background Art

[0002] The new energy transmission housing is a key component in the power system of new energy vehicles. It carries various transmission mechanisms, shifting devices and some operating mechanisms inside the transmission, and stores lubricating oil. Its housing is usually made of high-strength and lightweight materials such as aluminum alloy. This ensures sufficient strength and rigidity to withstand the high torque output by the motor and stress changes under complex working conditions.

[0003] In the production process of new energy gearbox housing, in order to ensure the accuracy of processing position and improve processing efficiency, it is necessary to use a fixture to clamp and position the housing structure. However, the existing positioning device generally clamps the workpiece at a single position through a tooling similar to a clamp. During the clamping process, the force on the housing clamping position is too concentrated, making the housing structure prone to deformation and damage during processing. Summary of the invention

[0004] The purpose of the present invention is to provide a clamping and positioning device for use in the automated production of new energy gearbox housings, so as to solve the problem that the housing is subjected to excessive concentrated force during the clamping process of the positioning device of the prior art proposed in the above background technology, which is easy to be damaged during the processing.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A clamping and positioning device used in the automated production of new energy gearbox housings comprises a receiving frame, a base is slidably mounted on the top of the receiving frame, a plurality of type-one positioning units and a plurality of type-two positioning units are arranged on the top edge of the base, the type-one positioning unit comprises an adjusting rod slidably connected to the base, a limiting plate is snap-connected to the top of the adjusting rod, a plurality of snap-connecting grooves are provided in the middle of the adjusting rod, and a limiting pressing block is snap-connected to the inner wall of the snap-connecting groove; the type-two positioning unit comprises a telescopic rod, and a mounting plate is fixedly connected to the top of the telescopic rod.

[0007] As a further solution of the present invention: a shift groove for movement and displacement of the adjusting rod is provided on the base, a sliding groove is provided on one side of the bottom of the shift groove, a roller frame is installed on the inner wall of the sliding groove, a shift roller is installed on the top of the roller frame, a shift frame is fixedly connected to the bottom of the roller frame, the middle part of the shift frame is slidably connected to the adjusting rod, and a positioning bolt is threadedly connected to one side of the shift frame.

[0008] As a further solution of the present invention: the bottom of the shift frame is fixedly connected to a hanging frame, a lifting motor is fixedly installed on one side of the inner wall of the hanging frame, the output end of the lifting motor is fixedly connected to a lifting screw, the middle part of the lifting screw is threadedly connected to a lifting block, the lifting block is slidably connected to the inner wall of the hanging frame, and one side of the lifting block is fixedly connected to the bottom of the adjusting rod.

[0009] As a further solution of the present invention: a mounting sleeve is fixedly connected to the middle of the position limiting and tightening block, a mounting bolt is threadedly connected to the middle of the mounting sleeve, and an outer wall of the position limiting and tightening block protrudes outward to form a plurality of push portions.

[0010] As a further solution of the present invention: locking frames are rotatably connected on both sides of the top of the mounting plate, a push groove is provided on the top of the locking frame, a push block is slidably installed inside the push groove, a push rod is fixedly connected to the top of the push block, a push spring is fixedly connected between the middle part of the push block and the inner wall of the push groove, an adjusting plate is fixedly connected to the bottom of the push block, a locking docking column is fixedly connected to the bottom of the adjusting plate, an avoidance groove is provided on the side where the two locking frames are close to each other, and a cut-out portion is provided on one side of the two avoidance grooves.

[0011] As a further solution of the present invention: a positioning column is slidably connected to the middle of the mounting plate, a positioning rotating rod is threadedly connected to the top of the positioning column, and a locking gasket is fixedly connected to the bottom of the positioning rotating rod.

[0012] As a further solution of the present invention: an anti-skid pad is fixedly connected to the top of the base, and a plurality of middle positioning rods are rotatably connected to the middle of the base.

[0013] As a further solution of the present invention: tilt adjustment parts are provided on both sides of the bottom of the base, and the tilt adjustment parts include a supporting platform, one side of the supporting platform is set as an inclined surface, and a linear motor is fixedly installed on one side of the top of the supporting platform, and a lifting rod is fixedly connected to the output end of the linear motor, and a lifting groove is provided at a position of the bottom of the base corresponding to the lifting rod, and the lifting rod is slidably connected to the lifting groove; a supporting gear is rotatably connected to the other side of the top of the supporting platform, a supporting tooth groove is provided at a position of the bottom of the base corresponding to the supporting gear, and the middle part of the supporting gear is rotatably connected with a limiting bolt.

[0014] As a further solution of the present invention: the telescopic rod includes a bottom sleeve, a sliding rod is slidably installed on the inner wall of the bottom sleeve, a pulling spring is fixedly connected between the bottom of the sliding rod and the inner wall of the bottom sleeve, a sliding seat is fixedly connected to the bottom of the bottom sleeve, and a through groove is opened on the edge of the base for the sliding seat to slide.

[0015] Compared with the prior art, the invention has the following beneficial effects: the invention uses positioning units with different structures and functions to perform fixed limiting operations on the gearbox housing from different positions, so that the clamping force of the housing during processing should be evenly distributed on various clamping points of the workpiece, so as to ensure that the workpiece is subjected to balanced force during processing and reduce damage; at the same time, each positioning unit is slidably adjusted to meet the positioning needs of the gearbox housings of multiple models and types that it undertakes to produce during production and processing;

[0016] The present invention improves the limiting stability of the side of the shell and the stable contact and fit with the outer wall of the shell by setting the push parts with various shapes, thereby achieving stable limiting of the shell in the horizontal direction, ensuring that the workpiece remains stable during the processing, improving the processing accuracy and preventing horizontal movement of the shell.

[0017] The present invention provides a tilt adjustment part, drives the lifting rod to lift through a linear motor, and then drives the base to tilt as a whole; the supporting gear is locked by rotating the limit bolt, and the base is fixed by utilizing the limiting of the locked supporting gear and the supporting tooth groove, so as to facilitate the processing of the shell in a tilted posture. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the base of the present invention;

[0020] Figure 3 It is a schematic diagram of the position structure of the mounting frame of the present invention;

[0021] Figure 4 is a cross-sectional view of the tilt adjustment member of the present invention;

[0022] Figure 5 It is a top view of the second type positioning unit of the present invention.

[0023] In the figure: 1, base; 2, type I positioning unit; 201, adjustment rod; 202, clamping groove; 203, limit plate; 204, installation sleeve; 205, limit tight block; 206, shift frame; 207, lifting motor; 208, lifting block; 209, hanging frame; 210, positioning bolt; 211, shift groove; 212, shift roller; 3, type II positioning unit; 301, sliding seat; 302, bottom Sleeve; 303, sliding rod; 304, mounting plate; 305, locking frame; 306, push spring; 307, push rod; 308, avoidance groove; 309, positioning column; 310, positioning rotating rod; 311, adjustment plate; 312, locking docking column; 401, supporting platform; 402, supporting gear; 403, limit bolt; 404, lifting rod; 5, supporting frame; 6, anti-slip pad; 7, middle positioning rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 2 In an embodiment of the present invention, a clamping and positioning device used in the automated production of new energy gearbox housings includes a receiving frame 5, a base 1 is slidably mounted on the top of the receiving frame 5, and a plurality of type-one positioning units 2 and a plurality of type-two positioning units 3 are arranged on the top edge of the base 1. Since the gearbox housing has different sizes and designs, its height and side shape have various styles. For parts manufacturers, in order to meet the positioning needs of the gearbox housings of multiple models and types that they undertake to produce during the production and processing, they need to have a clamping and positioning device that can realize the positioning of multiple gearbox housings; the present application uses positioning units with different structures and functions to perform fixed limiting operations on the gearbox housing from different positions, so that the housing is evenly stressed during the processing and the damage is reduced.

[0026] The first type positioning unit 2 includes an adjusting rod 201 slidably connected to the base 1, the top of the adjusting rod 201 is snap-connected with a limiting plate 203, and a plurality of snap-in grooves 202 are provided in the middle of the adjusting rod 201. The limiting plate 203 is suitable for pressing the shell downward by the top edge of the shell to limit the position; in order to improve the limiting stability of the side of the shell and prevent the horizontal movement of the shell, the inner wall of the snap-in groove 202 is snap-connected with a limiting pressing block 205. In order to realize the installation of the limiting pressing block 205, the middle part of the limiting pressing block 205 is fixedly connected with a mounting sleeve 204, and the middle part of the mounting sleeve 204 is threadedly connected with a mounting bolt. The outer wall of the limiting pressing block 205 protrudes outward to form a plurality of pushing parts, and the pushing parts have a variety of different shapes. The setting of the shape refers to the common concave shape setting on the outside of the existing gearbox shell, so as to meet the stable contact and fit with the outer wall of the shell, thereby realizing the stable limiting of the shell in the horizontal direction.

[0027] The base 1 is provided with a displacement groove 211 for the adjustment rod 201 to move and shift. In this embodiment, the displacement groove 211 is set in an "E" shape, so that the adjustment rod 201 can slide and shift in two directions, so as to adapt to the processing requirements of different shells;

[0028] See also Figure 3In order to keep the position and posture of the adjusting rod 201 stable during the shift adjustment and limit clamping process, a sliding groove is opened on one side of the bottom of the shift groove 211, and the shape of the sliding groove is matched with the shift groove 211. A roller frame is installed on the inner wall of the sliding groove, and a shift roller 212 is installed on the top of the roller frame to reduce the resistance of the roller frame during the sliding operation. The bottom of the roller frame is fixedly connected to the shift frame 206, and the middle part of the shift frame 206 is slidably connected to the adjusting rod 201. A positioning bolt 210 is threadedly connected to one side of the shift frame 206. The positioning bolt 210 is extended by rotation and contacted with the bottom of the base 1 to lock, thereby realizing the fixed limit of the shift frame 206.

[0029] In order to adjust the height of the adjusting rod 201, the bottom of the shift frame 206 is fixedly connected to a hanging frame 209, and a lifting motor 207 is fixedly installed on one side of the inner wall of the hanging frame 209. The output end of the lifting motor 207 is fixedly connected to a lifting screw, and the middle part of the lifting screw is threadedly connected to a lifting block 208. The lifting block 208 is slidingly connected to the inner wall of the hanging frame 209, and one side of the lifting block 208 is fixedly connected to the bottom of the adjusting rod 201. The lifting screw rotates to drive the lifting block 208 to move up and down along the length direction of the lifting screw, thereby driving the adjusting rod 201 to move up and down, thereby adjusting the height of the adjusting rod 201.

[0030] See also Figure 2 The second type positioning unit 3 includes a telescopic rod, the top of the telescopic rod is fixedly connected with a mounting plate 304, the telescopic rod includes a bottom sleeve 302, the inner wall of the bottom sleeve 302 is slidably mounted with a sliding rod 303, a pulling spring is fixedly connected between the bottom of the sliding rod 303 and the inner wall of the bottom sleeve 302, the bottom of the bottom sleeve 302 is fixedly connected with a sliding seat 301, and the edge of the base 1 is provided with a through groove for the sliding seat 301 to slide; the mounting plate 304 is pressed down by the pulling spring, and is pressed and limited by the top edge of the shell;

[0031] The top of the mounting plate 304 is rotatably connected to locking frames 305 on both sides, and a push groove is provided on the top of the locking frame 305, and a push block is slidably installed inside the push groove, and a push spring 306 is fixedly connected between the middle of the push block and the inner wall of the push groove, and a push rod 307 is fixedly connected to the top of the push block, and an adjusting piece 311 is fixedly connected to the bottom of the push block, and a locking docking column 312 is fixedly connected to the bottom of the adjusting piece 311; the locking docking column 312 extends into the inner edge of the gearbox housing, and the push of the push spring 306 drives the push block and the push sheet to shrink and move, so that the locking docking column 312 can be in close contact with the inner edge of the housing, thereby fixing the housing.

[0032] See also Figure 1 and Figure 5Due to the structural characteristics of the gearbox housing and the side walls often having a curved structure, the present application rotates the locking frame 305 to improve the fit to the curved structure and ensure the stability of the limit position; to support the locking frame 305 in the rotating state, a positioning column 309 is slidably connected to the middle of the mounting plate 304, and a positioning rotating rod 310 is threadedly connected to the top of the positioning column 309, and a locking gasket is fixedly connected to the bottom of the positioning rotating rod 310, and the locking gasket is pressed down by rotating the positioning rotating rod 310 to achieve the fixation of the positioning column 309; an avoidance groove 308 is opened on the side where the two locking frames 305 are close to each other, and in the natural state, the positioning column 309 is located in the avoidance groove 308, and to ensure that the two locking frames 305 are not obstructed during the rotation process, a cutout portion is opened on one side of the two avoidance grooves 308.

[0033] In order to increase the movement resistance of the shell on the base 1, the shell is supported and limited by the middle position; the top of the base 1 is fixedly connected with an anti-skid pad 6, and the middle of the base 1 is rotatably connected with a plurality of middle positioning rods 7.

[0034] Since the shell needs to be processed in an inclined posture in some processing operations, it is difficult or extremely inconvenient to adjust the angle of the processing equipment or operate manually; both sides of the bottom of the base 1 of the present application are provided with tilt adjustment parts, please refer to Figure 4 The tilt adjustment member includes a support platform 401, the bottom of the support platform 401 is slidably connected to the support frame 5, one side of the support platform 401 is set as an inclined surface, a linear motor is fixedly installed on one side of the top of the support platform 401, and a lifting rod 404 is fixedly connected to the output end of the linear motor. A lifting slot is provided at the bottom of the base 1 corresponding to the lifting rod 404, and the lifting rod 404 is slidably connected to the lifting slot. The lifting rod 404 is lifted by the linear motor, thereby driving the base 1 as a whole. Tilt; In order to prevent the base 1 in a tilted state from sliding and shifting and affecting the processing, a supporting gear 402 is rotatably connected to the other side of the top of the supporting platform 401, and a supporting tooth groove is provided at the bottom of the base 1 corresponding to the supporting gear 402. The middle part of the supporting gear 402 is rotatably connected to a limiting bolt 403. The supporting gear 402 is locked by rotating the limiting bolt 403, and the base 1 is fixed by utilizing the limiting effect of the locked supporting gear 402 and the supporting tooth groove.

[0035] When the present invention is used, firstly, the gearbox housing is placed on the base 1, the sliding shift frame 206 is made to make the adjustment frame close to the gearbox housing, and the position of the adjustment limit and tight block 205 is rotated to make it fit and contact with the side wall of the housing, and then the positioning bolt 210 is rotated to lock the shift frame 206, and then the lifting motor 207 is started to drive the lifting screw to rotate, thereby driving the lifting block 208 to descend, driving the adjustment rod 201 to descend so that its top limit piece 203 is in contact and tight with the top edge of the housing, and then the bolt is installed to position and lock the limit and tight block 205, and the installation of the first positioning unit 2 is completed;

[0036] Then, the telescopic rod is slid, and the mounting plate 304 is pulled to adjust the position of the locking frame 305, and the push rod 307 is pushed to shift the adjustment piece 311 and the locking positioning column 309 to the inner wall edge of the gearbox housing. The push of the push spring 306 is used to make the locking positioning column 309 press against the inner wall edge of the housing, and the locking frame 305 can be rotated to tilt it, so as to meet the stable limiting needs of the housing side edges of different shapes;

[0037] When the posture of the base 1 needs to be adjusted, the linear motor of the tilt adjustment part located on the same side drives the lifting rod 404 to be lifted, thereby driving the base 1 to tilt as a whole, and the supporting gear 402 is locked by rotating and tightening the limit bolt 403. The base 1 is fixed by utilizing the limiting function of the locked supporting gear 402 and the supporting tooth groove, thereby preventing the base 1 from slipping during the processing and ensuring stable processing.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A clamping and positioning device used in the automated production of new energy gearbox housings, characterized in that: The invention comprises a receiving frame (5), a base (1) being slidably mounted on the top of the receiving frame (5), a plurality of type-one positioning units (2) and a plurality of type-two positioning units (3) being arranged on the top edge of the base (1), the type-one positioning unit (2) comprising an adjusting rod (201) slidably connected to the base (1), the top of the adjusting rod (201) being snap-connected with a limiting plate (203), a plurality of snap-connecting grooves (202) being arranged in the middle of the adjusting rod (201), the inner wall of the snap-connecting groove (202) being snap-connected with a limiting pressing block (205); the type-two positioning unit (3) comprising a telescopic rod, the top of the telescopic rod being fixedly connected with a mounting plate (304).

2. The clamping and positioning device for automatic production of new energy gearbox housing according to claim 1 is characterized in that: The base (1) is provided with a displacement groove (211) for allowing the adjustment rod (201) to move and shift, a sliding groove is provided on one side of the bottom of the displacement groove (211), a roller frame is installed on the inner wall of the sliding groove, a displacement roller (212) is installed on the top of the roller frame, a displacement frame (206) is fixedly connected to the bottom of the roller frame, the middle part of the displacement frame (206) is slidably connected to the adjustment rod (201), and a positioning bolt (210) is threadedly connected to one side of the displacement frame (206).

3. The clamping and positioning device for automatic production of new energy gearbox housing according to claim 2 is characterized in that: The bottom of the shift frame (206) is fixedly connected to a hanging frame (209), a lifting motor (207) is fixedly installed on one side of the inner wall of the hanging frame (209), the output end of the lifting motor (207) is fixedly connected to a lifting screw rod, the middle part of the lifting screw rod is threadedly connected to a lifting block (208), the lifting block (208) is slidably connected to the inner wall of the hanging frame (209), and one side of the lifting block (208) is fixedly connected to the bottom of the adjusting rod (201).

4. The clamping and positioning device for automatic production of new energy gearbox housing according to claim 1 is characterized in that: The middle part of the position-limiting and tightening block (205) is fixedly connected to a mounting sleeve (204), the middle part of the mounting sleeve (204) is threadedly connected to a mounting bolt, and the outer wall of the position-limiting and tightening block (205) protrudes outward to form a plurality of pushing parts.

5. The clamping and positioning device for automatic production of new energy gearbox housing according to claim 1 is characterized in that: Both sides of the top of the mounting plate (304) are rotatably connected with locking frames (305), the top of the locking frame (305) is provided with a push groove, a push block is slidably installed inside the push groove, the top of the push block is fixedly connected with a push rod (307), the bottom of the push block is fixedly connected with an adjustment sheet (311), and the bottom of the adjustment sheet (311) is fixedly connected with a locking docking column (312).

6. The clamping and positioning device for automatic production of new energy gearbox housing according to claim 5 is characterized in that: An avoidance groove (308) is provided on one side of the two locking frames (305) that are close to each other, and a cutout portion is provided on one side of the two avoidance grooves (308).

7. The clamping and positioning device for automatic production of new energy gearbox housing according to claim 6 is characterized in that: A positioning column (309) is slidably connected to the middle of the mounting plate (304), a positioning rotating rod (310) is threadedly connected to the top of the positioning column (309), and a locking gasket is fixedly connected to the bottom of the positioning rotating rod (310).

8. The clamping and positioning device for automatic production of new energy gearbox housing according to claim 1 is characterized in that: The top of the base (1) is fixedly connected with an anti-skid pad (6), and the middle of the base (1) is rotatably connected with a plurality of middle positioning rods (7).

9. The clamping and positioning device for automatic production of new energy gearbox housing according to claim 1 is characterized in that: Both sides of the bottom of the base (1) are provided with tilt adjustment parts, and the tilt adjustment parts include a support platform (401), a linear motor is fixedly installed on one side of the top of the support platform (401), and the output end of the linear motor is fixedly connected to a lifting rod (404), and a lifting groove is opened at a position corresponding to the lifting rod (404) at the bottom of the base (1), and the lifting rod (404) is slidably connected to the lifting groove; a supporting gear (402) is rotatably connected to the other side of the top of the support platform (401), and the middle part of the supporting gear (402) is rotatably connected to a limiting bolt (403).

10. The clamping and positioning device for automatic production of new energy gearbox housing according to claim 1 is characterized in that: The telescopic rod comprises a bottom sleeve (302), a sliding rod (303) is slidably mounted on the inner wall of the bottom sleeve (302), a pulling spring is fixedly connected between the bottom of the sliding rod (303) and the inner wall of the bottom sleeve (302), and a sliding seat (301) is fixedly connected to the bottom of the bottom sleeve (302).

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