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

Abstract

The application discloses a clamping and positioning device applied to automatic production of new energy gearbox housings and relates to the technical field of gearbox production. The top of the bearing frame is slidably provided with a base, the top edge of the base is provided with a plurality of first positioning units and a plurality of second positioning units, the first positioning unit comprises an adjusting rod slidably connected with the base, the top of the adjusting rod is clamped and connected with a limiting sheet, a plurality of clamping grooves are formed in the middle of the adjusting rod, and the inner wall of the clamping groove is clamped and connected with a limiting abutting block. The second positioning unit comprises a telescopic rod, and the top of the telescopic rod is fixedly connected with a mounting plate. Through the positioning units with different structures and functions, the gearbox housing is fixed and positioned from different positions, the clamping force of the housing is evenly distributed on each clamping point of the workpiece during the machining process, the force balance of the workpiece during the machining process is ensured, and damage is reduced.

Description

Technical Field

[0001] This invention relates to the field of gearbox manufacturing technology, specifically a clamping and positioning device applied to the automated production of new energy gearbox housings. Background Technology

[0002] The transmission housing is a key component of the powertrain system of new energy vehicles. It houses various transmission mechanisms, shifting devices, and some operating mechanisms within the transmission, and stores lubricating oil. The housing is typically made of high-strength, lightweight materials such as aluminum alloy. This ensures sufficient strength and rigidity to withstand the high torque output from the electric motor and stress variations under complex operating conditions.

[0003] In the production of new energy vehicle gearbox housings, fixtures are needed to clamp and position the housing structure to ensure accurate machining and improve machining efficiency. However, existing positioning devices generally clamp the workpiece at a single location using a clamp-like tool. During clamping, the force at the clamping location is too concentrated, making the housing structure prone to deformation damage during machining. Summary of the Invention

[0004] The purpose of this invention is to provide a clamping and positioning device for the automated production of new energy transmission housings, in order to solve the problem that the existing positioning devices mentioned in the background art suffer from excessive force concentration on the housing during clamping, which easily leads to damage during processing.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A clamping and positioning device for automated production of new energy gearbox housings includes a receiving frame. A base is slidably mounted on the top of the receiving frame. Several type I positioning units and several type II positioning units are provided on the top edge of the base. The type I positioning unit includes an adjusting rod slidably connected to the base. A limit piece is engaged with the top of the adjusting rod. Several locking grooves are opened in the middle of the adjusting rod. A limit abutment block is engaged with the inner wall of the locking groove. The type II positioning unit includes a telescopic rod. A mounting plate is fixedly connected to the top of the telescopic rod.

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

[0008] As a further embodiment of the present invention: a hanging frame is fixedly connected to the bottom of the shifting frame, a lifting motor is fixedly installed on one side of the inner wall of the hanging frame, a lifting screw is fixedly connected to the output end of the lifting motor, a lifting block is threadedly connected to the middle of the lifting screw, 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 aspect of the present invention: a mounting sleeve is fixedly connected to the middle of the limiting and pressing block, a mounting bolt is threadedly connected to the middle of the mounting sleeve, and a plurality of pushing parts are formed by the outward protrusion of the outer wall of the limiting and pressing block.

[0010] As a further aspect of the present invention: locking frames are rotatably connected to both sides of the top of the mounting plate; a pushing groove is provided on the top of the locking frame; a pushing block is slidably installed inside the pushing groove; a pushing rod is fixedly connected to the top of the pushing block; a pushing spring is fixedly connected between the middle of the pushing block and the inner wall of the pushing groove; an adjusting plate is fixedly connected to the bottom of the pushing block; a locking docking post is fixedly connected to the bottom of the adjusting plate; an avoidance groove is provided on the side of the two locking frames that are close to each other; and a cut is provided on one side of each of the two avoidance grooves.

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

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

[0013] As a further aspect of the present invention: Tilting adjustment components are provided on both sides of the bottom of the base. Each tilting adjustment component includes a support platform, one side of which is an inclined surface. A linear motor is fixedly installed on one side of the top of the support platform, and a lifting rod is fixedly connected to the output end of the linear motor. A lifting groove is formed at 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 support platform, and a supporting tooth groove is formed at the bottom of the base corresponding to the supporting gear. A limit bolt is rotatably connected to the middle of the supporting gear.

[0014] As a further aspect 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 tension 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 provided on the edge of the base for the sliding seat to slide.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the present invention uses positioning units with different structures and functions to fix and limit the gearbox housing from different positions, so that the clamping force of the housing during the processing should be evenly distributed on each clamping point of the workpiece, so as to ensure that the workpiece is subjected to balanced force during the processing and reduce damage; at the same time, the positioning units are slidably adjustable to meet the positioning needs in the production and processing of multiple models and types of gearbox housings it undertakes.

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

[0017] This invention incorporates a tilt adjustment component, which uses a linear motor to drive a lifting rod to raise the base, thereby tilting the entire base. By rotating the limiting bolts, the supporting gear is locked. The locked supporting gear and the supporting tooth groove are used to fix the base, facilitating the processing of the shell in an inclined position. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the base of the present invention;

[0020] Figure 3 This is a schematic diagram of the position and structure of the mounting bracket of the present invention;

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

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

[0023] In the diagram: 1. Base; 2. Type I positioning unit; 201. Adjusting rod; 202. Snap-fit ​​groove; 203. Limiting piece; 204. Mounting sleeve; 205. Limiting and clamping block; 206. Shifting frame; 207. Lifting motor; 208. Lifting block; 209. Hanging bracket; 210. Positioning bolt; 211. Shifting groove; 212. Shifting roller; 3. Type II positioning unit; 301. Sliding seat; 302. Base 303. Sleeve; 304. Sliding rod; 305. Mounting plate; 306. Locking bracket; 307. Push spring; 308. Push rod; 309. Clearance groove; 310. Positioning post; 311. Positioning rotating rod; 312. Adjusting plate; 313. Locking docking post; 401. Support platform; 402. Support gear; 403. Limit bolt; 404. Lifting rod; 5. Support frame; 6. Anti-slip pad; 7. Central positioning rod. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1-2 In this embodiment of the invention, a clamping and positioning device applied to the automated production of new energy transmission housings includes a receiving frame 5. A base 1 is slidably mounted on the top of the receiving frame 5. Several type I positioning units 2 and several type II positioning units 3 are arranged on the top edge of the base 1. Since transmission housings have different sizes and designs, their heights and side shapes vary. For parts manufacturers, in order to meet the positioning needs during the production and processing of multiple types of transmission housings they undertake, they need a clamping and positioning device that can position multiple types of transmission housings. This application uses positioning units with different structures and functions to fix and limit the transmission housing from different positions, so that the housing is subjected to uniform force during processing and damage is reduced.

[0026] The positioning unit 2 includes an adjusting rod 201 slidably connected to the base 1. A limiting piece 203 is engaged with the top of the adjusting rod 201. Several locking grooves 202 are provided in the middle of the adjusting rod 201. The limiting piece 203 is suitable for pressing down and limiting the housing from the top edge of the housing. To improve the limiting stability of the housing side and prevent the housing from moving horizontally, a limiting abutment block 205 is engaged with the inner wall of the locking groove 202. To install the limiting abutment block 205, an installation sleeve 204 is fixedly connected to the middle of the limiting abutment block 205. An installation bolt is threaded to the middle of the installation sleeve 204. Several pushing parts are formed by the outer wall of the limiting abutment block 205 protruding outward. The pushing parts have various shapes. The shape is set with reference to the common concave shape of the outer side of the existing gearbox housing, so as to meet the stable contact and fit with the outer wall of the housing, thereby achieving stable limiting of the housing 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 the shape of "E", so that the adjustment rod 201 can slide and shift in two directions to adapt to the processing needs of different housings.

[0028] Please see Figure 3To maintain the stable position and posture of the adjusting rod 201 during displacement adjustment and limiting clamping, a sliding groove is provided on one side of the bottom of the displacement groove 211. The shape of the sliding groove matches the displacement groove 211. A roller frame is installed on the inner wall of the sliding groove, and a displacement roller 212 is installed on the top of the roller frame to reduce the resistance of the roller frame during sliding operation. 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 adjusting rod 201. A positioning bolt 210 is threadedly connected to one side of the displacement frame 206. The positioning bolt 210 extends out and contacts and locks with the bottom of the base 1 by rotating, thereby achieving the fixed limiting of the displacement frame 206.

[0029] To adjust the height of the adjusting rod 201, a mounting bracket 209 is fixedly connected to the bottom of the shifting frame 206. A lifting motor 207 is fixedly installed on one side of the inner wall of the mounting bracket 209. A lifting screw is fixedly connected to the output end of the lifting motor 207. A lifting block 208 is threadedly connected to the middle of the lifting screw. The lifting block 208 is slidably connected to the inner wall of the mounting bracket 209. One side of the lifting block 208 is fixedly connected to the bottom of the adjusting rod 201. The rotation of the lifting screw drives the lifting block 208 to move up and down along the length of the lifting screw, thereby driving the adjusting rod 201 to move up and down, thus adjusting the height of the adjusting rod 201.

[0030] Please see Figure 2 The second-type positioning unit 3 includes a telescopic rod, with a mounting plate 304 fixedly connected to the top of the telescopic rod. The telescopic rod includes a bottom sleeve 302, with a sliding rod 303 slidably mounted on the inner wall of the bottom sleeve 302. A tension spring is fixedly connected between the bottom of the sliding rod 303 and the inner wall of the bottom sleeve 302. A sliding seat 301 is fixedly connected to the bottom of the bottom sleeve 302. A through groove for the sliding seat 301 to slide is opened on the edge of the base 1. The mounting plate 304 is pressed down by the tension spring, and the top edge of the housing presses and limits its movement.

[0031] Locking brackets 305 are rotatably connected to both sides of the top of the mounting plate 304. The top of the locking bracket 305 is provided with a push groove. A push block is slidably installed inside the push groove. A push spring 306 is fixedly connected between the middle of the push block and the inner wall of the push groove. A push rod 307 is fixedly connected to the top of the push block. An adjusting piece 311 is fixedly connected to the bottom of the push block. A locking docking post 312 is fixedly connected to the bottom of the adjusting piece 311. The locking docking post 312 extends into the inner edge of the gearbox housing. The push spring 306 pushes the push block and the push piece to retract and move, so that the locking docking post 312 can abut against the inner edge of the housing, thereby fixing the housing.

[0032] Please see Figure 1 and Figure 5Due to the structural characteristics of the gearbox housing and the fact that the side walls often have curved surfaces, this application rotates the locking bracket 305 to improve the fit to the curved surface and ensure the stability of the limit position. To support the locking bracket 305 in the rotating state, a positioning post 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 post 309, and a locking washer is fixedly connected to the bottom of the positioning rotating rod 310. By rotating the positioning rotating rod 310, the locking washer is pressed down to fix the positioning post 309. A clearance groove 308 is provided on the side of the two locking brackets 305 that are close to each other. In the natural state, the positioning post 309 is located in the clearance groove 308. To ensure that the two locking brackets 305 are not obstructed during rotation, a cut is provided on one side of each of the two clearance grooves 308.

[0033] To increase the resistance of the shell's movement on the base 1, it is supported and limited by the middle position of the shell; the top of the base 1 is fixedly connected to an anti-slip pad 6, and the middle of the base 1 is rotatably connected to several middle positioning rods 7.

[0034] Because some processing operations require machining the shell in an inclined position, it is difficult or extremely inconvenient to achieve this through adjusting the angle of the processing equipment or manual operation; therefore, the base 1 of this application is equipped with tilt adjustment components on both sides of its bottom. Please refer to [link to relevant documentation]. Figure 4 The tilting adjustment component includes a support platform 401, the bottom of which 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 the top side of the support platform 401. A lifting rod 404 is fixedly connected to the output end of the linear motor. A lifting groove is opened at the bottom of the base 1 at the position corresponding to the lifting rod 404. The lifting rod 404 is slidably connected to the lifting groove. The linear motor drives the lifting rod 404 to lift, thereby driving the entire base 1. Inclined; to prevent the inclined base 1 from sliding and shifting, affecting processing, a support gear 402 is rotatably connected to the other side of the top of the support platform 401. A support tooth groove is opened at the bottom of the base 1 corresponding to the support gear 402. A limit bolt 403 is rotatably connected to the middle of the support gear 402. By rotating the limit bolt 403, the support gear 402 is locked. The base 1 is fixed by the limit of the locked support gear 402 and the support tooth groove.

[0035] When using this invention, firstly, the gearbox housing is placed on the base 1, the sliding shifting frame 206 is slid to bring the adjusting frame closer to the gearbox housing, and the position of the adjusting limit abutment block 205 is rotated to make it fit against the side wall of the housing. Then, the positioning bolt 210 is rotated to lock the shifting frame 206. Then, the lifting motor 207 is started to drive the lifting screw to rotate, which in turn drives the lifting block 208 to descend, and drives the adjusting rod 201 to descend so that its top limiting piece 203 contacts and abuts against the top edge of the housing. Then, the bolt is installed to position and lock the limit abutment block 205, thus completing the installation of the type 1 positioning unit 2.

[0036] Then slide the telescopic rod and pull the mounting plate 304 to adjust the position of the locking bracket 305, and push the push rod 307 to move the adjusting piece 311 and the locking positioning pin 309 to the inner wall edge of the gearbox housing. With the push of the push spring 306, the locking positioning pin 309 is pressed against the inner wall edge of the housing. The locking bracket 305 can be rotated to tilt it to meet the stable limiting requirements of the side of the housing with different shapes.

[0037] When the posture of the base 1 needs to be adjusted, the lifting rod 404 is raised by the linear motor of the tilt adjustment component located on the same side, thereby causing the base 1 to tilt as a whole. The supporting gear 402 is locked by rotating and tightening the limiting bolt 403. The base 1 is fixed by the limiting of the supporting gear 402 and the supporting tooth groove after locking, so as to prevent the base 1 from slipping during the processing and ensure processing stability.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A clamping and positioning device for automated production of new energy gearbox housings, characterized in that, The system includes a support frame (5), on which a base (1) is slidably mounted. The base (1) has several type I positioning units (2) and several type II positioning units (3) on its top edge. The type I positioning unit (2) includes an adjusting rod (201) slidably connected to the base (1). The top of the adjusting rod (201) is engaged with a limiting piece (203). The middle of the adjusting rod (201) has several locking grooves (202). The inner wall of the locking grooves (202) is engaged with a limiting abutment block (205). The middle of the limiting abutment block (205) is fixedly connected with an installation sleeve (204). The middle of the installation sleeve (204) is threaded with an installation bolt. The outer wall of the limiting abutment block (205) protrudes outward to form several pushing parts. The type II positioning unit (3) includes a telescopic rod, on which an installation plate (304) is fixedly connected. The base (1) is provided with a displacement groove (211) for 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). A positioning bolt is threadedly connected to one side of the displacement frame (206). 210); The bottom of the shifting 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 a lifting block (208) is threadedly connected to the middle of the lifting screw. 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); The top of the mounting plate (304) is rotatably connected to both sides of a locking bracket (305). The top of the locking bracket (305) is provided with a push groove. A push block is slidably installed inside the push groove. A push rod (307) is fixedly connected to the top of the push block. An adjusting piece (311) is fixedly connected to the bottom of the push block. A locking docking post (312) is fixedly connected to the bottom of the adjusting piece (311). A clearance groove (308) is provided on the side of the two locking brackets (305) that are close to each other. A cut is provided on one side of each of the two clearance grooves (308). A positioning post (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 post (309). A locking washer is fixedly connected to the bottom of the positioning rotating rod (310).

2. The clamping and positioning device for automated production of new energy gearbox housings according to claim 1, characterized in that, The base (1) is fixedly connected to the top of an anti-slip pad (6), and the base (1) is rotatably connected to a number of central positioning rods (7).

3. The clamping and positioning device for automated production of new energy gearbox housings according to claim 1, characterized in that, The base (1) is provided with tilt adjustment components on both sides of the bottom. The tilt adjustment components include a support platform (401). A linear motor is fixedly installed on one side of the top of the support platform (401). A lifting rod (404) is fixedly connected to the output end of the linear motor. A lifting groove is opened at the bottom of the base (1) at the position corresponding to the lifting rod (404). The lifting rod (404) is slidably connected to the lifting groove. A support gear (402) is rotatably connected to the other side of the top of the support platform (401). A limit bolt (403) is rotatably connected to the middle of the support gear (402).

4. The clamping and positioning device for automated production of new energy gearbox housings according to claim 1, characterized in that, The telescopic rod includes a bottom sleeve (302), a sliding rod (303) is slidably installed on the inner wall of the bottom sleeve (302), a tension 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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