A kind of fixture for automobile transmission shaft machining

Abstract

The utility model discloses a kind of clamps for automobile transmission shaft processing, it includes base, base top side is fixedly connected with first fixed plate, base top side is movably connected with second fixed plate, first fixed plate side is fixedly connected with first drive motor, the power output end of first drive motor is fixedly connected with triangle chuck with penetrating first fixed plate, triangle chuck side is movably connected with multiple clamping jaw, transmission shaft both ends are respectively placed between multiple rollers in the top of first fixed frame and the top of second fixed frame and are horizontally placed, one end of universal joint is placed in triangle chuck and is clamped, under the action of second drive motor, make screw rotate, make second fixed plate and second fixed frame respectively according to the length of transmission shaft along guide rail and first limit slot slide, make pressing plate press tightly between transmission shaft and universal joint, by first drive motor drive universal joint and transmission shaft whole rotation, again by external welding device to interface place welding processing.

Description

Technical Field

[0001] This utility model relates to the field of transmission shaft processing technology, specifically a fixture for processing automotive transmission shafts. Background Technology

[0002] The driveshaft is the shaft in a universal joint drive system that transmits power. It is a high-speed, low-support rotating body, making its dynamic balance crucial. Driveshafts typically undergo dynamic balancing tests and adjustments on a balancing machine before leaving the factory. In front-engine, rear-wheel-drive vehicles, the driveshaft transmits rotation from the transmission to the final drive. It can consist of several sections, usually connected by universal joints. During driveshaft manufacturing, the driveshaft and universal joints need to be welded together.

[0003] Most existing fixtures for machining automotive drive shafts can only hold drive shafts of a single size, which limits their use. When machining drive shafts of different sizes, fixtures usually need to be changed, which increases the machining cost to some extent. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the above and / or existing fixtures for machining automotive drive shafts, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a fixture for machining automotive drive shafts. During use, the two ends of the drive shaft are placed horizontally between multiple rollers on the top of the first and second fixed frames. One end of the universal joint is placed in the triangular chuck for clamping. Under the action of the second drive motor, the lead screw rotates, causing the second fixed plate and the second fixed frame to slide along the guide rail and the first limiting groove according to the length of the drive shaft. This causes the pressure plate to press the drive shaft and the universal joint together. The first drive motor drives the universal joint and the drive shaft to rotate as a whole. Then, an external welding device is used to weld the interface. This solves the problem that most existing automotive drive shaft machining fixtures can only clamp drive shafts of a single size, which is quite limited in use. When machining drive shafts of different sizes, fixture replacement is usually required, increasing processing costs to some extent.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] A jig for machining automotive drive shafts includes a base, a first fixed plate fixedly connected to one side of the top of the base, a second fixed plate movably connected to one side of the top of the base, a first drive motor fixedly connected to one side of the first fixed plate, a triangular chuck fixedly connected to the power output end of the first drive motor through the first fixed plate, a plurality of jaws movably connected to one side of the triangular chuck, universal joints clamping and connecting the plurality of jaws, a first fixed frame fixedly connected to the top of the base, a second fixed frame movably connected to the top of the base, a plurality of rollers provided on the top of both the first and second fixed frames, a drive shaft placed between the plurality of rollers, a pressure plate movably connected to one side of the second fixed plate, and an adjustment component provided at the bottom of the base to simultaneously adjust the positions of the second fixed plate and the second fixed frame according to the length of the drive shaft.

[0009] In a preferred embodiment of the fixture for machining automotive drive shafts according to this utility model, the adjusting component includes a second drive motor, the power output end of the second drive motor is fixedly connected to a lead screw through one side of the base, a third fixing frame is fixedly connected to the middle of the base, and one end of the lead screw is movably connected to one side of the third fixing frame.

[0010] In a preferred embodiment of the fixture for machining automotive drive shafts according to this utility model, the bottom of the second fixing plate is provided with a first internal thread through hole, and the bottom of the second fixing plate is threadedly connected to the lead screw; the bottom of the second fixing bracket is provided with a second internal thread through hole, and the bottom of the second fixing bracket is threadedly connected to the lead screw.

[0011] As a preferred embodiment of the fixture for machining automotive drive shafts according to this utility model, guide rails are fixedly connected to both sides of the top of the base, a first limiting groove is provided on one side of the guide rail, a second limiting groove is provided at both ends of the bottom of the second fixing plate, the guide rail is located in the second limiting groove, and a boss is provided at both ends of the first fixing frame and the second fixing frame, one end of the boss is located inside the first limiting groove.

[0012] As a preferred embodiment of the fixture for machining automotive drive shafts according to this utility model, a third fixing plate is fixedly connected to the top of both the first fixing frame and the second fixing frame, and a third internal thread through hole is provided at each of the four corners of the top of the third fixing plate. A fourth fixing frame is movably connected to the bottom of the roller.

[0013] In a preferred embodiment of the automobile drive shaft machining fixture described in this utility model, both ends of the fourth fixing frame are provided with annular grooves, and screws are movably connected in the annular grooves. The screws are threadedly connected to the third internal thread through hole, and a metal washer is movably connected between the screws and the top of the fourth fixing frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the two ends of the drive shaft are placed horizontally between multiple rollers on the top of the first fixed frame and the top of the second fixed frame, and one end of the universal joint is placed in the triangular chuck for clamping. Under the action of the second drive motor, the lead screw is driven to rotate, so that the second fixed plate and the second fixed frame slide along the guide rail and the first limiting groove according to the length of the drive shaft, so that the pressure plate presses the drive shaft and the universal joint together. The first drive motor drives the universal joint and the drive shaft to rotate as a whole, and then the interface is welded by an external welding device. This solves the problem that most existing automotive drive shaft processing fixtures can only clamp drive shafts of a single size, which has great limitations in use. When processing drive shafts of different sizes, it is usually necessary to change the fixture, which increases the processing cost to a certain extent. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is a first schematic diagram of the overall structure of a fixture for machining automotive drive shafts according to this utility model.

[0017] Figure 2 This is a second schematic diagram of the overall structure of a fixture for machining automotive drive shafts according to this utility model.

[0018] Figure 3 This is a schematic diagram of the base structure of a fixture for machining automotive drive shafts according to this utility model.

[0019] Figure 4 This is a schematic diagram of the second fixing frame structure of a jig for machining automotive drive shafts according to this utility model.

[0020] Figure 5 This is a schematic diagram of the roller structure of a fixture for machining automotive drive shafts according to this utility model.

[0021] Figure 6 This is a schematic diagram of the second fixing plate structure of a jig for machining automotive drive shafts according to this utility model. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Example 1

[0024] Please see Figures 1-6 This utility model provides a fixture for processing automotive drive shafts, including a base 1, a first fixing plate 2 fixedly connected to one side of the top of the base 1, a second fixing plate 3 movably connected to one side of the top of the base 1, a first drive motor 4 fixedly connected to one side of the first fixing plate 2, a triangular chuck 5 fixedly connected to the power output end of the first drive motor 4 through the first fixing plate 2, a plurality of jaws 11 movably connected to one side of the triangular chuck 5, a universal joint 6 clamping and connecting the plurality of jaws 11, a first fixing frame 7 fixedly connected to the top of the base 1, a second fixing frame 8 movably connected to the top of the base 1, a plurality of rollers 24 provided on the top of both the first fixing frame 7 and the second fixing frame 8, a drive shaft 10 placed between the plurality of rollers 24, a pressure plate 25 movably connected to one side of the second fixing plate 3, and an adjustment component provided at the bottom of the base 1 to simultaneously adjust the position of the second fixing plate 3 and the position of the second fixing frame 8 according to the length of the drive shaft 10.

[0025] The adjustment assembly includes a second drive motor 15. The power output end of the second drive motor 15 is fixedly connected to a lead screw 16 through one side of the base 1. A third fixing frame 12 is fixedly connected to the middle of the base 1. One end of the lead screw 16 is movably connected to one side of the third fixing frame 12.

[0026] The bottom of the second fixing plate 3 is provided with a first internal thread through hole 27, and the bottom of the second fixing plate 3 is threadedly connected to the lead screw 16. The bottom of the second fixing bracket 8 is provided with a second internal thread through hole 20, and the bottom of the second fixing bracket 8 is threadedly connected to the lead screw 16.

[0027] The base 1 has guide rails 13 fixedly connected to both sides of the top. A first limiting groove 14 is provided on one side of the guide rail 13. The bottom ends of the second fixing plate 3 are provided with second limiting grooves 26. The guide rail 13 is located in the second limiting groove 26. The first fixing frame 7 and the second fixing frame 8 are provided with bosses 17 at both ends. One end of the boss 17 is located inside the first limiting groove 14.

[0028] Specifically, the two ends of the drive shaft 10 are placed horizontally between multiple rollers 24 on the top of the first fixed frame 7 and the top of the second fixed frame 8. One end of the universal joint 6 is placed in the triangular chuck 5 for clamping. Under the action of the second drive motor 15, the lead screw 16 is rotated, causing the second fixed plate 3 and the second fixed frame 8 to slide along the guide rail 13 and the first limiting groove 14 according to the length of the drive shaft 10. The pressure plate 25 presses the drive shaft 10 and the universal joint 6 together. The first drive motor 4 drives the universal joint 6 and the drive shaft 10 to rotate as a whole. Then, the interface is welded by an external welding device. This solves the problem that most existing automotive drive shaft processing fixtures can only clamp drive shafts of a single size, which has great limitations in use. When processing drive shafts of different sizes, it is usually necessary to change the fixture, which increases the processing cost to a certain extent.

[0029] Example 2

[0030] Please see Figures 4-5 The top of the first fixed frame 7 and the second fixed frame 8 are both fixedly connected to the third fixed plate 18. The top four corners of the third fixed plate 18 are provided with the third internal thread through hole 19. The bottom of the roller 24 is movably connected to the fourth fixed frame 9.

[0031] Both ends of the fourth fixing frame 9 are provided with annular grooves 21. Screws 22 are movably connected in the annular grooves 21. The screws 22 are threadedly connected to the third internal thread through hole 19. A metal washer 23 is movably connected between the screws 22 and the top of the fourth fixing frame 9.

[0032] Specifically, the fourth fixing bracket 9 can be slidably adjusted according to the diameter of the drive shaft 10, thereby adjusting the distance between multiple rollers 24, and then the fourth fixing bracket 9 is locked by screws 22 and metal washers 23, which further improves practicality.

[0033] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A fixture for machining automotive drive shafts, characterized in that, Includes a base (1), a first fixing plate (2) is fixedly connected to one side of the top of the base (1), a second fixing plate (3) is movably connected to one side of the top of the base (1), a first drive motor (4) is fixedly connected to one side of the first fixing plate (2), a triangular chuck (5) is fixedly connected to the power output end of the first drive motor (4) through the first fixing plate (2), a plurality of jaws (11) are movably connected to one side of the triangular chuck (5), and a universal joint (6) is clamped and connected between the plurality of jaws (11). The base (1) is fixedly connected to a first fixed frame (7) at the top, and a second fixed frame (8) is movably connected to the top of the base (1). The first fixed frame (7) and the second fixed frame (8) are each provided with multiple rollers (24) at the top. A drive shaft (10) is placed between the multiple rollers (24). A pressure plate (25) is movably connected to one side of the second fixed plate (3). An adjustment component is provided at the bottom of the base (1) and the positions of the second fixed plate (3) and the second fixed frame (8) are adjusted simultaneously according to the length of the drive shaft (10).

2. The fixture for machining automotive drive shafts according to claim 1, characterized in that, The adjustment assembly includes a second drive motor (15), the power output end of the second drive motor (15) is fixedly connected to a lead screw (16) through one side of the base (1), a third fixing frame (12) is fixedly connected to the middle of the base (1), and one end of the lead screw (16) is movably connected to one side of the third fixing frame (12).

3. The fixture for machining automotive drive shafts according to claim 2, characterized in that, The bottom of the second fixing plate (3) is provided with a first internal thread through hole (27), and the bottom of the second fixing plate (3) is threadedly connected to the lead screw (16). The bottom of the second fixing bracket (8) is provided with a second internal thread through hole (20), and the bottom of the second fixing bracket (8) is threadedly connected to the lead screw (16).

4. A fixture for machining automotive drive shafts according to claim 3, characterized in that, The base (1) has guide rails (13) fixedly connected to both sides of the top. A first limiting groove (14) is provided on one side of the guide rail (13). A second limiting groove (26) is provided at both ends of the bottom of the second fixing plate (3). The guide rail (13) is located in the second limiting groove (26). A boss (17) is provided at both ends of the first fixing frame (7) and the second fixing frame (8). One end of the boss (17) is located inside the first limiting groove (14).

5. A fixture for machining automotive drive shafts according to claim 4, characterized in that, The top of the first fixing frame (7) and the second fixing frame (8) are both fixedly connected to a third fixing plate (18). The top four corners of the third fixing plate (18) are provided with third internal thread through holes (19). The bottom of the roller (24) is movably connected to a fourth fixing frame (9).

6. A fixture for machining automotive drive shafts according to claim 5, characterized in that, Both ends of the fourth fixing frame (9) are provided with annular grooves (21), and screws (22) are movably connected in the annular grooves (21). The screws (22) are threadedly connected to the third internal thread through hole (19), and a metal washer (23) is movably connected between the screws (22) and the top of the fourth fixing frame (9).

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