Automobile hub welding tool

Abstract

The utility model relates to the technical field of hub machining, and discloses an automobile hub welding tool which comprises an installation base and clamping rods, a plurality of through holes are evenly distributed in the top end of the installation base in the circumferential direction in an array mode, the clamping rods penetrate through the through holes in a sliding mode, and the installation base is connected with a rotating assembly capable of driving the installation base to rotate. A driving cavity is formed in the mounting base, a telescopic air cylinder is arranged in the middle of the driving cavity, a plurality of hinge rods are hinged to the power end of the telescopic air cylinder in the circumferential direction, the other ends of the hinge rods are hinged to the bottom ends of clamping rods, and pressing rods are hinged to the top ends of the clamping rods; the clamping rod is provided with a limiting assembly capable of driving the pressing rod to conduct limiting and pressing on the inner end face of the outer eave of the automobile hub. Compared with the prior art, the tool has the advantages that the circumferential direction and the inner side of the end face of the hub can be conveniently limited, the limiting stability is improved, and the machining precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub processing technology, specifically to a welding fixture for automobile wheel hubs. Background Technology

[0002] In the welding process of automobile wheels, they need to be pre-positioned. However, most existing automobile wheel welding fixtures use clamping rods to limit the circumferential movement of the wheel end face. Since the end face thickness is usually not very thick and the contact area is limited, it is sometimes necessary to rotate the wheel during the processing to assist welding. This may cause displacement, which in turn affects the processing accuracy and effect. Utility Model Content

[0003] I. Technical problems to be solved

[0004] The technical problem this invention aims to solve is that the small contact area and poor limiting stability during circumferential positioning of the wheel hub end face may lead to displacement, thereby affecting the machining accuracy and effect.

[0005] II. Technical Solution

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a welding fixture for automobile wheel hubs, including a mounting base and a clamping rod. The top of the mounting base is provided with a plurality of through holes evenly distributed in a circumferential array. The clamping rod slides through the through holes. A rotating component that can drive the mounting base to rotate is connected to the mounting base. A driving cavity is provided inside the mounting base. A telescopic cylinder is provided in the middle of the driving cavity. A plurality of hinge rods are circumferentially hinged to the power end of the telescopic cylinder. The other end of the hinge rod is hinged to the bottom end of the clamping rod. A pressure rod is hinged to the top of the clamping rod. A limiting component is provided on the clamping rod that can drive the pressure rod to limit and press the inner end face of the outer edge of the automobile wheel hub.

[0007] Furthermore, the rotating assembly includes a motor connected to the base plate, and the power output end of the motor is connected to the center of the bottom end of the mounting base.

[0008] Furthermore, the clamping rod has a horizontal Z-shaped structure, and first sliders are respectively connected to both sides of the middle part of the clamping rod. First sliding grooves are provided on both sides of the through hole, and the first sliding grooves slide in cooperation with the first sliders.

[0009] Furthermore, the limiting component includes an abutment plate that is slidably connected to the clamping rod. A drive rod is rotatably connected to the abutment plate on the side away from the center of the mounting base. The drive rod passes through the clamping rod. A drive assembly that can drive the drive rod to rotate is provided on the clamping rod. A rope winding shaft is connected to the drive rod. A spring sleeved on the drive rod is provided between the rope winding shaft and the clamping rod. A pull rope is connected to the rope winding shaft. The other end of the pull rope is connected to a pressure rod.

[0010] Furthermore, a second sliding groove is connected to the clamping rod, and a second slider is connected to the abutment plate, with the second slider slidingly engaging with the second sliding groove.

[0011] Furthermore, the driving assembly includes a through hole on the clamping rod, a fixing post is provided in the through hole, and a spiral groove is provided circumferentially on the driving rod, with the fixing post slidingly engaged with the spiral groove.

[0012] III. Beneficial Effects

[0013] The advantages of this utility model compared with the prior art are as follows:

[0014] The telescopic cylinder drives the hinge rod to slide along the through hole, allowing the clamping rods to move closer or further apart depending on the size of the wheel hub. This ensures that the wheel hub end face abuts against the clamping rod, with the outer circumference abutting against the outer end of the clamping rod, thus limiting the wheel hub's position. The limiting component allows the pressure rod to be driven to press and limit the inner end face of the wheel hub's outer edge during the circumferential limiting process, thereby improving the stability of the wheel hub's position. The rotating component facilitates the use of external welding components to weld the wheel hub at different angles, thereby improving welding efficiency. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a welding fixture for automobile wheel hubs according to this utility model.

[0016] Figure 2 This is a structural schematic diagram of a welding fixture for automobile wheel hubs according to this utility model.

[0017] Figure 3 This is a schematic diagram of the main cross-sectional structure of a welding fixture for automobile wheel hubs according to this utility model.

[0018] Figure 4 yes Figure 3 A magnified structural diagram of A in the middle.

[0019] As shown in the figure: 1. Mounting base, 2. Clamping rod, 3. Through hole, 4. Telescopic cylinder, 5. Hinge rod, 6. Pressure rod, 7. Motor, 8. First slider, 9. First slide groove, 10. Abutment plate, 11. Drive rod, 12. Rope winding shaft, 13. Spring, 14. Pull rope, 15. Second slide groove, 16. Second slider, 17. Through hole, 18. Fixing post, 19. Spiral groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] In order to synchronously drive the clamping rod 2 to slide along the first slide groove 9, thereby achieving circumferential positioning of the outer edge of the bottom of the wheel hub, combined with the attached... Figure 1 , Figure 2 and Figure 3 A welding fixture for automotive wheel hubs includes a mounting base 1 and a clamping rod 2. The mounting base 1 has a plurality of through holes 3 evenly distributed in an array on its top circumference. The clamping rod 2 slides through the through holes 3. The clamping rod 2 has a horizontal Z-shaped structure. The clamping rod 2 has a first slider 8 connected to both sides of its middle section. The through holes 3 have first sliding grooves 9 on opposite sides. The first sliding grooves 9 and the first sliders 8 slide in cooperation. The mounting base 1 has a driving cavity. The driving cavity has a telescopic cylinder 4 in its middle section. The power end of the telescopic cylinder 4 is circumferentially hinged to a hinge rod 5. The other end of the hinge rod 5 is hinged to the bottom end of the clamping rod 2.

[0023] To limit the outer edge of the wheel hub and improve its stability, thus preventing displacement during welding and affecting the welding effect, in conjunction with the attached... Figure 3 and Figure 4 The clamping rod 2 has a pressure rod 6 hinged to its top end. The pressure rod 6 is an inverted L-shaped plate structure. The clamping rod 2 has a limiting component that can drive the pressure rod 6 to limit and press the inner end face of the outer edge of the car wheel hub. The limiting component includes an abutment plate 10 that is slidably connected to the clamping rod 2. The clamping rod 2 is connected to a second sliding groove 15. The abutment plate 10 is connected to a second slider 16, which slides in cooperation with the second sliding groove 15. A drive rod 11 is rotatably connected to the side of the abutment plate 10 away from the center of the mounting base 1. A through-clamping rod 2 is provided, and a rope winding shaft 12 is connected to the driving rod 11. A spring 13 is provided between the rope winding shaft 12 and the clamping rod 2 and sleeved on the driving rod 11. A pull rope 14 is connected to the rope winding shaft 12, and the other end of the pull rope 14 is connected to a pressure rod 6. The clamping rod 2 is provided with a driving assembly that can drive the driving rod 11 to rotate. The driving assembly includes a through hole 17 provided on the clamping rod 2. A fixing post 18 is provided in the through hole 17. A spiral groove 19 is provided around the driving rod 11, and the fixing post 18 slides with the spiral groove 19.

[0024] Example 2

[0025] Based on Embodiment 1, the device drives the hub to rotate to cooperate with external welding components for welding, thereby improving welding efficiency. Combined with the attached... Figure 2 and Figure 3 The mounting base 1 is connected to a rotating assembly that can drive the mounting base 1 to rotate. The rotating assembly includes a motor 7 connected to the base plate, and the power output end of the motor 7 is connected to the middle of the bottom end of the mounting base 1.

[0026] The specific usage method is as follows:

[0027] First, make the bottom surface of the wheel hub abut against the surface where the second sliding groove 15 of the Z-shaped clamping rod 2 is located;

[0028] Then, the telescopic cylinder 4 drives the hinge rod 5 to drive the clamping rod 2. The clamping rod 2 moves closer to each other along the direction of the first slide groove 9 through the sliding cooperation of the first slider 8 and the first slide groove 9 until the abutment plate 10 abuts against the outer edge of the wheel hub. As the telescopic cylinder 4 drives the clamping rod 2 to continue to move closer, the wheel hub peripheral wall drives the abutment plate 10 to slide outward along the direction of the second slide groove 15. At this time, the spring 13 is compressed and stores force. At the same time, as the abutment plate 10 drives the drive rod 11 outward, the drive rod 11 drives the rope winding shaft 12 to rotate through the cooperation of the fixed column 18 and the threaded groove to realize the winding of the pull rope 14. The winding of the pull rope 14 drives the pressure plate to rotate clockwise around the hinge point with the clamping rod 2 until the free end of the pressure plate abuts against the inner end face of the outer edge of the wheel hub, thereby realizing the stable positioning of the wheel hub.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0031] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A welding fixture for automobile wheel hubs, comprising a mounting base (1) and a clamping rod (2), wherein the mounting base (1) has a plurality of through holes (3) evenly distributed in a circumferential array at its top end, and the clamping rod (2) slides through the through holes (3), characterized in that: The mounting base (1) is provided with a drive cavity, and a telescopic cylinder (4) is provided in the middle of the drive cavity. Several hinge rods (5) are circumferentially hinged to the power end of the telescopic cylinder (4), and the other end of the hinge rod (5) is hinged to the bottom end of the clamping rod (2). The clamping rod (2) is hinged to a pressure rod (6) at its top end. The clamping rod (2) is provided with a limiting component that can drive the pressure rod (6) to limit and press the inner end face of the outer edge of the car wheel hub. The mounting base (1) is connected to a rotating component that can drive the mounting base (1) to rotate.

2. The automotive wheel hub welding fixture according to claim 1, characterized in that: The rotating assembly includes a motor (7) connected to the base plate, and the power output end of the motor (7) is connected to the middle of the bottom end of the mounting base (1).

3. The automotive wheel hub welding fixture according to claim 1, characterized in that: The clamping rod (2) is a horizontal Z-shaped structure. The clamping rod (2) has a first slider (8) connected to both sides of the middle part. The through hole (3) has a first groove (9) on both sides opposite to each other. The first groove (9) and the first slider (8) slide together.

4. The automotive wheel hub welding fixture according to claim 1, characterized in that: The limiting component includes an abutment plate (10) that slides to connect the clamping rod (2). The abutment plate (10) is rotatably connected to a drive rod (11) on the side away from the center of the mounting base (1). The drive rod (11) passes through the clamping rod (2). The clamping rod (2) is provided with a drive assembly that can drive the drive rod (11) to rotate. A rope winding shaft (12) is connected to the drive rod (11). A spring (13) is sleeved on the drive rod (11) between the rope winding shaft (12) and the clamping rod (2). A pull rope (14) is connected to the rope winding shaft (12). The other end of the pull rope (14) is connected to a pressure rod (6).

5. The automotive wheel hub welding fixture according to claim 4, characterized in that: The clamping rod (2) is connected to a second sliding groove (15), and the abutment plate (10) is connected to a second slider (16), which slides in cooperation with the second sliding groove (15).

6. The automotive wheel hub welding fixture according to claim 5, characterized in that: The drive assembly includes a through hole (17) on the clamping rod (2), a fixing post (18) is provided in the through hole (17), and a spiral groove (19) is provided in the circumferential direction of the drive rod (11). The fixing post (18) and the spiral groove (19) are slidably engaged.

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