Hub machining clamp

Abstract

The utility model relates to the technical field of hub clamps, in particular to a hub machining clamp which comprises a supporting seat, an elastic chuck is arranged on the supporting seat, the elastic chuck extends into a center hole of a hub body so as to conduct inner hole positioning, inner supporting and clamping on the hub body, and a pull rod piece is arranged on the supporting seat in a penetrating mode. A conical shaft matched with the inner side wall of the elastic chuck is arranged at one end of the pull rod piece, and the pull rod piece moves towards the other end of the pull rod piece to drive the conical shaft to extrude the elastic chuck so that the elastic chuck can clamp the center hole of the hub body. The pull rod piece moves in the direction of the end, provided with the conical shaft, of the pull rod piece to drive the conical shaft to loosen the elastic chuck so that the elastic chuck can loosen the center hole of the hub body, and a pull plate connected with the pull rod piece is arranged below the supporting base. According to the utility model, the positioning and clamping of the hub body are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub clamps, in particular to a wheel hub processing clamp. Background Art

[0002] The wheel hub is a cylindrical metal part that supports the inner profile of the tire and is centrally mounted on the axle. It is an important part of the car.

[0003] The wheel hub needs to be milled and processed during the processing, so the wheel hub needs to be positioned and clamped.

[0004] For example, on April 26, 2017, a patent with the publication number CN206123255U and the name of a turning fixture for processing wheel hubs was disclosed. The patent includes a fixture body, and the fixture body is axially provided with a supporting boss and a locating pin, and the locating pin is a cylindrical shape that matches the shape of the wheel hub shaft hole; a screw is axially provided on the outer end face of the locating pin, and the outer circumference of the screw has an external thread. The turning fixture also includes a pressure plate and a nut that presses the pressure plate onto the wheel hub. The utility model achieves positioning through the locating pin and clamping through the pressure plate, thereby meeting the clamping needs of the wheel hub; however, in the above documents, the fixture used first positions the wheel hub shaft hole, and after positioning, the pressure plate is pressed on the wheel hub to achieve clamping, which has low working efficiency. Summary of the invention

[0005] In view of this, the purpose of the utility model is to provide a hub processing fixture to solve the problem of low working efficiency when clamping the hub body.

[0006] Based on the above-mentioned purpose, the utility model provides a wheel hub processing fixture, including a support seat, the support seat is provided with an elastic chuck that extends into the center hole of the wheel hub body to position and clamp the inner hole of the wheel hub body, the support seat is passed through a pull rod, one end of the pull rod is provided with a tapered shaft that cooperates with the inner side wall of the elastic chuck, the pull rod moves toward its other end to drive the tapered shaft to squeeze the elastic chuck so that the elastic chuck clamps the center hole of the wheel hub body.

[0007] Optionally, a pull plate connected to the pull rod member is provided under the support seat, and a plurality of claw arms are provided on the pull plate for rotation at equal angles to the axis of the pull rod member. The claw arms extend into one side of the support seat where an elastic chuck is provided, and a long hole is provided on the claw arms. A limiting pin fixedly connected to the support seat is slidably connected in the long hole, and the claw arms press the periphery of the hub body when the pull plate moves toward the other end.

[0008] Optionally, the claw arm is rotatably connected to the pull plate via a rotating pin.

[0009] Optionally, the support seat is provided with a plurality of support blocks which are matched with the claw arms one by one, and the upper part of the claw arm is provided with a pressure head which is matched with the support blocks.

[0010] Optionally, the support seat includes a panel, a connecting tube is fixedly connected to the side of the panel close to the tapered shaft, a core shaft is fixedly arranged in the connecting tube, a side of the core shaft away from the panel is connected to the elastic clamp, and a guide tube for guiding the pull rod is fixedly arranged in the core shaft.

[0011] Optionally, the pull rod member includes a connecting pull rod, which is fixedly connected to the pull plate via a pressure ring, an active pull rod is connected to one end of the connecting pull rod away from the conical shaft, and the other end of the connecting pull rod is connected to a driven pull rod via a guide shaft, the guide shaft is cooperated with the guide cylinder, and the other end of the driven pull rod is connected to the conical shaft.

[0012] Optionally, a connecting spring is provided between the guide cylinder and the guide shaft.

[0013] Optionally, a base fixedly connected to the support seat is provided under the pull plate, and an opening for the pull rod to slide through is provided on the base.

[0014] Optionally, an elastic spring is connected between the pull plate and the base.

[0015] Optionally, a guide hole is provided on the pull plate, and a guide pin is fixedly connected between the base and the support seat for sliding through the guide hole.

[0016] The beneficial effects of the utility model: the utility model provides a hub processing fixture. When the hub body needs to be clamped, the hub body is placed on a support seat, the center hole of the hub body is aligned with the elastic chuck to allow the elastic chuck to penetrate, and then the pull rod is controlled to move downward so that the tapered shaft squeezes the elastic chuck so that the elastic chuck clamps the center hole of the hub body, thereby achieving positioning and internal support clamping of the inner hole of the hub body, and can simultaneously achieve positioning and clamping of the hub body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the left view structure;

[0020] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0021] Figure 4 It is a schematic cross-sectional structural diagram of a hub body to be processed according to the present invention.

[0022] In the figure: 1. base; 2. support seat; 3. pull plate; 4. guide pin; 5. rotating pin; 6. claw arm; 7. pressure head; 8. long hole; 9. limiting pin; 10. support block; 11. elastic spring; 12. active pull rod; 13. connecting pull rod; 14. driven pull rod; 15. pressure ring; 16. connecting tube; 17. core shaft; 18. guide tube; 19. guide shaft; 20. connecting spring; 21. tapered shaft; 22. elastic chuck; 23. hub body. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0024] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] like Figures 1 to 4As shown, a wheel hub processing fixture includes a support seat 2, on which is provided an elastic chuck 22 that extends into the center hole of the wheel hub body 23 to position and support the inner hole of the wheel hub body 23, and a pull rod is passed through the support seat 2, and one end of the pull rod is provided with a tapered shaft 21 that is matched with the inner side wall of the elastic chuck 22, and the pull rod moves toward the other end thereof to drive the tapered shaft 21 to squeeze the elastic chuck 22 so that the elastic chuck 22 clamps the center hole of the wheel hub body 23, and the pull rod moves toward the end on which the tapered shaft 21 is provided to drive the tapered shaft 21 to loosen the elastic chuck 22 so that the elastic chuck 22 loosens the center hole of the wheel hub body 23, and a pull plate 3 connected with the pull rod is provided under the support seat 2.

[0026] When the hub body 23 needs to be clamped, the hub body 23 is placed on the support seat 2, the center hole of the hub body 23 is aligned with the elastic clamp 22 to allow the elastic clamp 22 to penetrate, and then the pull rod is controlled to move downward so that the tapered shaft 21 squeezes the elastic clamp 22 so that the elastic clamp 22 clamps the center hole of the hub body 23, thereby achieving the positioning and clamping of the hub body 23; when the hub body 23 needs to be relaxed, the hub body 23 has been placed on the support seat 2, and the pull rod is controlled to move upward so that the tapered shaft 21 does not squeeze the elastic clamp 22, and the elastic clamp 22 contracts, so that the elastic clamp 22 relaxes the center hole of the hub body 23, thereby achieving the relaxation of the hub body 23.

[0027] The pull plate 3 is provided with a plurality of claw arms 6 which are rotated at equal angles to the axis of the pull rod, the claw arms 6 extend into one side of the support seat 2 where the elastic clamp 22 is provided, a long hole 8 is provided on the claw arm 6, a limiting pin 9 which is fixedly connected to the support seat 2 is slidably connected in the long hole 8, the claw arms 6 press the periphery of the hub body 23 when the pull plate 3 moves toward the other end thereof, and the claw arms 6 release the periphery of the hub body 23 when the pull plate 3 moves toward one end where the tapered shaft 21 is provided.

[0028] The claw arm 6 is rotatably connected to the pull plate 3 via a rotating pin 5 .

[0029] The support seat 2 is provided with a plurality of support blocks 10 which are arranged one by one with the claw arms 6. The upper part of the claw arms 6 is provided with a pressing head 7 which is arranged to cooperate with the support block 10. The support block 10 is convenient for supporting the hub body 23 placed on the support seat 2. The pressing head 7 on the claw arms 6 presses the hub body 23. When the pressing head 7 presses the hub body 23, the pressing head 7 is above the support block 10, thereby reducing the risk of deformation caused by the pressing head 7 on the hub body 23.

[0030] The support seat 2 includes a panel, and a connecting tube 16 is fixedly connected to the side of the panel close to the tapered shaft 21. A core shaft 17 is fixedly arranged in the connecting tube 16. The side of the core shaft 17 away from the panel is connected to the elastic clamp 22. A guide tube 18 for guiding the pull rod is fixedly arranged in the core shaft 17. The support seat 2 includes a panel, a connecting tube 16 and a core shaft 17, which facilitates the assembly of the support seat 2.

[0031] The pull rod member includes a connecting rod 13, and the connecting rod 13 is fixedly connected to the pull plate 3 through a pressure ring 15. The end of the connecting rod 13 away from the tapered shaft 21 is connected to the active pull rod 12, and the other end of the connecting rod 13 is connected to the driven pull rod 14 through a guide shaft 19. The guide shaft 19 is matched with the guide cylinder 18, and the other end of the driven pull rod 14 is connected to the tapered shaft 21. The pull rod member includes an active pull rod 12, a connecting rod 13, a driven pull rod 14 and a pressure ring 15, etc., which facilitates the assembly between the pull rod member and the support seat 2.

[0032] A connecting spring 20 is arranged between the guide cylinder 18 and the guide shaft 19. The arrangement of the connecting spring 20 facilitates the buffering between the guide cylinder 18 and the guide shaft 19. In addition, the guide shaft 19 is arranged in contact with the connecting rod 13. When the active rod 12 drives the connecting rod 13 to move downward, the pull plate 3 is first moved downward so that the claw arm 6 clamps the hub body 23. Then, since the connecting rod 13 moves downward, the connecting rod 13 leaves the guide shaft 19. The guide shaft 19 drives the driven rod 14 to move downward under the spring force of the connecting spring 20, so that the tapered shaft 21 connected to the driven rod 14 squeezes the elastic chuck 22 downward, so that the elastic chuck 22 clamps the center hole of the hub body 23 to limit the position.

[0033] A base 1 fixedly connected to the support seat 2 is provided under the pull plate 3, and an opening for the pull rod to slide through is provided on the base 1, so as to further limit the movement of the pull rod and prevent the pull rod from moving and deflecting.

[0034] An elastic spring 11 is connected between the pull plate 3 and the base 1. The setting of the elastic spring 11 accelerates the upward movement of the pull plate 3 to approach the support seat 2 and the upward movement of the pull rod, thereby facilitating the clamping arm 6 to loosen the hub body 23 placed on the support seat 2, and drive the tapered shaft 21 to move upward to allow the elastic clamp 22 to loosen the center hole of the hub body 23.

[0035] A guide hole is provided on the pull plate 3, and a guide pin 4 is fixedly connected between the base 1 and the support seat 2 for sliding through the guide hole. The guide pin 4 facilitates further movement and limiting of the pull plate 3 to prevent the pull plate 3 from moving and deflecting.

[0036] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0037] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wheel hub processing fixture, characterized in that: The invention comprises a support seat (2), the support seat (2) is provided with an elastic chuck (22) which extends into the center hole of the hub body (23) so as to position and support the inner hole of the hub body (23), and a pull rod is passed through the support seat (2), and one end of the pull rod is provided with a tapered shaft (21) which is arranged to cooperate with the inner wall of the elastic chuck (22). The pull rod moves toward the other end thereof to drive the tapered shaft (21) to squeeze the elastic chuck (22) so that the elastic chuck (22) clamps the center hole of the hub body (23).

2. A wheel hub processing fixture according to claim 1, characterized in that: A pull plate (3) connected to the pull rod is provided under the support seat (2), and a plurality of claw arms (6) are provided on the pull plate (3) to rotate at equal angles to the axis of the pull rod. The claw arms (6) extend into one side of the support seat (2) where an elastic clamp (22) is provided. A long hole (8) is provided on the claw arm (6), and a limiting pin (9) fixedly connected to the support seat (2) is slidably connected in the long hole (8). When the pull plate (3) moves toward the other end thereof, the claw arm (6) presses the periphery of the hub body (23).

3. A wheel hub processing fixture according to claim 2, characterized in that: The claw arm (6) is rotatably connected to the pull plate (3) via a rotating pin (5).

4. A wheel hub processing fixture according to claim 2, characterized in that: The support seat (2) is provided with a plurality of support blocks (10) which are arranged in a one-to-one manner with the clamping claw arms (6), and the upper part of the clamping claw arms (6) is provided with a pressure head (7) which is arranged in a coordinated manner with the support blocks (10).

5. A wheel hub processing fixture according to claim 2, characterized in that: The support seat (2) comprises a panel, a side of the panel close to the tapered shaft (21) is fixedly connected to a connecting tube (16), a core shaft (17) is fixedly arranged inside the connecting tube (16), a side of the core shaft (17) away from the panel is connected to the elastic clamp (22), and a guide tube (18) for guiding the pull rod is fixedly arranged inside the core shaft (17).

6. A wheel hub processing fixture according to claim 5, characterized in that: The pull rod member includes a connecting pull rod (13), wherein the connecting pull rod (13) is fixedly connected to the pull plate (3) via a pressure ring (15), and one end of the connecting pull rod (13) away from the tapered shaft (21) is connected to an active pull rod (12), and the other end of the connecting pull rod (13) is connected to a driven pull rod (14) via a guide shaft (19), and the guide shaft (19) is arranged in cooperation with the guide cylinder (18), and the other end of the driven pull rod (14) is connected to the tapered shaft (21).

7. A wheel hub processing fixture according to claim 6, characterized in that: A connecting spring (20) is provided between the guide cylinder (18) and the guide shaft (19).

8. The wheel hub processing fixture according to claim 2, characterized in that: A base (1) fixedly connected to the support seat (2) is provided under the pull plate (3), and an opening for the pull rod to slide through is provided on the base (1).

9. A wheel hub processing fixture according to claim 8, characterized in that: An elastic spring (11) is connected between the pull plate (3) and the base (1).

10. The wheel hub processing fixture according to claim 8, characterized in that: A guide hole is provided on the pull plate (3), and a guide pin (4) is fixedly connected between the base (1) and the support seat (2) and is used for sliding through the guide hole.

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