Clamping jig for hub polishing

Abstract

The utility model relates to hub machining, in particular to a hub polishing clamping jig which comprises a mounting seat and a hub body, a mounting opening is formed in the upper surface of the mounting seat, a mounting shell is arranged in the mounting opening, and a mounting disc is fixedly connected to the left side surface of the mounting shell. A clamping mechanism used for clamping and fixing a hub body is arranged on the surface of the mounting disc, an angle adjusting mechanism is arranged between the mounting shell and the mounting base, and the clamping mechanism comprises a cross-shaped mounting groove formed in the left side surface of the mounting disc. According to the scheme, through the clamping mechanism, four abutting plates are placed into the hub to be fixed, then, a motor operates to drive four threaded rods to rotate through a main bevel gear and an auxiliary bevel gear correspondingly, and threaded blocks drive the abutting plates to move under rotation of the threaded rods till the four abutting plates abut against the inner wall of the hub, so that the hub is fixed; and the situation that follow-up polishing work is hindered is avoided while the hub can be fixed through the jig.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub processing, in particular to a clamping fixture for wheel hub polishing. Background Art

[0002] The wheel hub is the part of the wheel center where the axle is installed. It is an important part that connects the brake drum (or brake disc), wheel disc and half-axle. It is mounted on the axle tube or steering knuckle journal with a bearing. The wheel hub is an important part of the wheel center where the axle is installed. It is mainly used to connect the brake drum, wheel disc and half-axle. The wheel hub needs to be fixed with a clamping device during the processing, and then polished.

[0003] In the prior art, a Chinese patent with publication number CN214771325U discloses a clamp for clamping different types of automobile wheel hubs for grinding, which adopts the scheme of "including a base, a motor, a first cylinder and a second cylinder, a motor is installed on the inner side of the middle part of the lower end of the base, and the output shaft of the motor is connected to an adjusting rod, the outer side of the middle part of the adjusting rod passes through and connects to a limiting block, and the inner side of the outer end of the limiting block is rotatably connected to a movable plate, the outer side of the upper end of the movable plate is rotatably connected to a movable plate, and the inner side of the upper end of the movable plate is fixedly connected to an anti-slip pad, the first cylinder is located on the inner side of the front upper end of the base, the inner side of the upper end of the base is engaged with a receiving plate, and the left rear side of the shaft gear is meshed with a rack". This scheme is convenient for clamping automobile wheel hubs of different models, and is convenient for the clamp to have a good effect of clamping and fixing the automobile wheel hub, and is convenient for rotating the automobile wheel hub, thereby facilitating grinding thereof.

[0004] However, the above scheme still has some shortcomings. For example, the above scheme achieves clamping and fixing by clamping a clamping plate against the outer side of the wheel hub. The surface of the wheel hub blocked by the clamping plate cannot be polished and the clamping plate easily forms an obstacle, affecting the subsequent polishing work. In view of this, the utility model proposes a clamping jig for wheel hub polishing. Summary of the invention

[0005] Technical issues solved

[0006] The utility model aims to provide a clamping jig for wheel hub polishing, which has the advantage of being able to clamp and fix the wheel hub without hindering the polishing work, so as to solve the problem in the above background technology that the surface of the wheel hub blocked by the clamping plate cannot be polished.

[0007] Technical Solution

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A clamping jig for wheel hub polishing, comprising a mounting seat and a wheel hub body, wherein the upper surface of the mounting seat is provided with a mounting opening, a mounting shell is arranged inside the mounting opening, a mounting plate is fixedly connected to the left surface of the mounting shell, a clamping mechanism for clamping and fixing the wheel hub body is arranged on the surface of the mounting plate, and angle adjustment mechanisms are arranged on both sides of the mounting shell;

[0010] The clamping mechanism includes a cross-shaped mounting groove opened on the left side surface of the mounting plate, the inner wall of the cross-shaped mounting groove is rotatably connected with four threaded rods arranged in a circular array, the opposite ends of the four threaded rods are fixedly connected with secondary bevel gears, the surface of the threaded rod is threadedly connected with a threaded block, the left side surface of the threaded block is fixedly connected with a support plate, and the multiple support plates are symmetrically distributed in a circular pattern, a motor is embedded in the interior of the mounting shell, the output shaft of the motor extends to the interior of the cross-shaped mounting groove and is fixedly connected with a main bevel gear, and the outer surface of the main bevel gear is meshed with the four secondary bevel gears, and a limiting mechanism for fixing the output shaft of the motor is provided on the top of the shell of the mounting shell.

[0011] As a preferred technical solution, the output shaft of the motor is respectively connected to the four threaded rods through the main bevel gear and the auxiliary bevel gear, and the motor drives the threaded rods to move the threaded block.

[0012] As a preferred technical solution, a rubber anti-skid layer is embedded on the surface of the abutment plate, a guide slider is provided on the surface of the threaded block, and a guide slide groove for the guide slider to slide is opened on the inner wall of the cross-shaped mounting groove.

[0013] As a preferred technical solution, the limiting mechanism includes a groove body opened inside the mounting shell, the surface of the motor output shaft located inside the groove body is fixedly connected to a gear column, the inner top wall of the groove body is opened with an operating groove, the inner top wall of the operating groove is opened with a threaded hole penetrating to the upper surface of the mounting shell, the inner wall of the threaded hole is threadedly connected with a screw, one end of the screw located inside the operating groove is rotatably connected to a connecting plate, the lower surface of the connecting plate is provided with a transmission plate, the lower surface of the transmission plate is fixedly connected with limiting teeth, and the surface of the gear column is opened with tooth grooves matching the limiting teeth.

[0014] As a preferred technical solution, a plurality of connecting rods are fixedly connected to the upper surface of the transmission plate, the top ends of the plurality of connecting rods all penetrate the upper surface of the connecting plate and are slidably connected to the connecting plate, and a spring is fixedly connected between the connecting plate and the transmission plate.

[0015] As a preferred technical solution, limit sliders are provided on both sides of the transmission plate, the inner wall of the operating groove is provided with a limit slide groove for the limit slider to slide, and the limit slider is slidably connected inside the limit slide groove.

[0016] As a preferred technical solution, the angle adjustment mechanism includes two limit rods fixedly connected to both sides of the mounting shell, arc-shaped strips are opened on both sides of the mounting seat, and the two limit rods pass through the two arc-shaped strips respectively.

[0017] As a preferred technical solution, the surface of the limit rod is provided with an external thread, the surface of the limit rod is threadedly connected with a fixing nut via the external thread, and one side of the fixing nut is in contact with one side of the mounting seat.

[0018] Beneficial Effects

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] 1. The utility model uses a clamping mechanism to rotate the working output shaft of the motor, and can simultaneously drive four threaded rods to rotate through the main bevel gear and the auxiliary bevel gear. The four threaded blocks respectively drive the four abutment plates to expand through the rotation of the four threaded rods. The four expanded abutment plates can fix the wheel hub through tension, avoiding the need for the fixture to achieve fixing work by contacting the outer surface of the wheel hub, thereby providing convenience for subsequent polishing work.

[0021] 2. The utility model uses a limiting mechanism. When the motor output shaft rotates, the spring pushes the transmission plate downward so that the limiting teeth on it are inserted into the tooth grooves on the surface of the gear column. The motor output shaft is fixed and limited by the gear column to avoid reversal of the motor output shaft, thereby improving the stability of the fixture clamping and reducing the loss to the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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 some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a front view structural schematic diagram of the utility model;

[0024] Figure 2 It is a schematic diagram of the front section structure of the utility model;

[0025] Figure 3 It is a schematic diagram of the side section structure of the installation plate of the utility model;

[0026] Figure 4 It is a schematic diagram of the side section structure of the installation shell of the utility model;

[0027] Figure 5 For the utility model Figure 4 Enlarged structural diagram at A in the middle.

[0028] In the figure: 1. mounting seat; 2. wheel hub body; 3. mounting shell; 4. mounting plate; 5. threaded rod; 6. motor; 7. main bevel gear; 8. secondary bevel gear; 9. threaded block; 10. abutment plate; 11. rubber anti-skid layer; 12. gear column; 13. screw rod; 14. connecting plate; 15. transmission plate; 16. limit teeth; 17. connecting rod; 18. spring; 19. limit rod; 20. slot body; 21. limit slider; 22. limit slide slot. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0031] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] According to the attached Figure 1-5 As shown, an embodiment of the utility model provides a clamping jig for wheel hub polishing, including a mounting seat 1 and a wheel hub body 2, an upper surface of the mounting seat 1 is provided with a mounting opening, the interior of the mounting opening is rotatably connected with a mounting shell 3, an angle adjustment mechanism is slidably connected between the mounting shell 3 and the mounting seat 1, the angle adjustment mechanism includes two limit rods 19 respectively fixedly connected to both sides of the mounting shell 3, arc-shaped strips are provided on both sides of the mounting seat 1, and the two limit rods 19 respectively penetrate the two arc-shaped strips, the surface of the limit rod 19 is provided with an external thread, the surface of the limit rod 19 is threadedly connected with a fixing nut through the external thread, and one side of the fixing nut is fitted with one side of the mounting seat 1.

[0033] A mounting plate 4 is fixedly connected to the left surface of the mounting shell 3, and a clamping mechanism for clamping and fixing the hub body 2 is slidably connected to the surface of the mounting plate 4. The clamping mechanism includes a cross-shaped mounting groove opened on the left surface of the mounting plate 4, and the inner wall of the cross-shaped mounting groove is rotatably connected to four threaded rods 5 arranged in a circular array, and the opposite ends of the four threaded rods 5 are fixedly connected to secondary bevel gears 8, and the surface of the threaded rods 5 is threadedly connected to a threaded block 9, and the left surface of the threaded block 9 is fixedly connected to a butt plate 10, and the multiple butt plates 10 are symmetrically distributed in a circle. A motor 6 is embedded in the interior of the mounting shell 3, and the output shaft of the motor 6 extends to the interior of the cross-shaped mounting groove and is fixedly connected to a main bevel gear 7, and the outer surface of the main bevel gear 7 is meshed with the four secondary bevel gears 8. A limiting mechanism for fixing the output shaft of the motor 6 is provided on the top of the shell of the mounting shell 3.

[0034] The output shaft of the motor 6 is respectively connected to the four threaded rods 5 through the main bevel gear 7 and the auxiliary bevel gear 8. The surface of the threaded rod 5 is threadedly connected with a threaded block 9. The left surface of the threaded block 9 is fixedly connected with a butt plate 10. The four butt plates 10 are symmetrically distributed on the circumference. The surface of the butt plate 10 is embedded with a rubber anti-skid layer 11. The surface of the threaded block 9 is provided with a guide slider. The inner wall of the cross-shaped mounting groove is provided with a guide slide groove for the guide slider to slide, and the guide slider is slidably connected inside the guide slide groove. Under the guiding action of the guide slider and the guide slide groove, the threaded block 9 is moved by the rotation of the threaded rod 5. A limiting mechanism for fixing the output shaft of the motor 6 is provided inside the shell of the mounting shell 3.

[0035] The limiting mechanism includes a slot body 20 opened inside the mounting shell 3, the output shaft of the motor 6 is located on the surface inside the slot body 20 and is fixedly connected to a gear column 12, an inner top wall of the slot body 20 is provided with an operating slot, the inner top wall of the operating slot is provided with a threaded hole penetrating to the upper surface of the mounting shell 3, the inner wall of the threaded hole is threadedly connected with a screw 13, one end of the screw 13 located inside the operating slot is rotatably connected to a connecting plate 14, a transmission plate 15 is provided on the lower surface of the connecting plate 14, and a limiting tooth 16 is fixedly connected to the lower surface of the transmission plate 15, and a surface of the gear column 12 is provided with tooth grooves matched with the limiting tooth 16, and the number of tooth grooves is several, and the several tooth grooves are arranged in a circular array on the surface of the gear column 12.

[0036] A plurality of connecting rods 17 are fixedly connected to the upper surface of the transmission plate 15, and the top ends of the plurality of connecting rods 17 all penetrate the upper surface of the connecting plate 14 and are slidably connected to the connecting plate 14. A spring 18 is fixedly connected between the connecting plate 14 and the transmission plate 15. Limiting sliders 21 are fixedly connected to both sides of the transmission plate 15. A limiting slide groove 22 for the limiting slider 21 to slide is provided on the inner wall of the operating groove. Under the guiding action of the limiting slider 21 and the limiting slide groove 22, the rotation of the screw rod 13 drives the transmission plate 15 to move up and down through the connecting plate 14 and the connecting rod 17.

[0037] When the clamping jig for wheel hub polishing of the utility model is used, the wheel hub to be fixed is sleeved on the outside of the four abutment plates 10, and then the working output shaft of the motor 6 rotates, and the four threaded rods 5 are respectively driven to rotate through the main bevel gear 7 and the auxiliary bevel gear 8. Due to the limitation of the cross-shaped mounting groove, the threaded block 9 can only move up and down but cannot rotate, and the threaded block 9 drives the abutment plates 10 to move under the rotation of the threaded rod 5 until the outside of the four abutment plates 10 abut against the inner wall of the wheel hub to fix the wheel hub, so that the jig can fix the wheel hub while preventing the wheel hub from rotating during subsequent polishing work. During the rotation of the output shaft of the motor 6, the transmission plate 15 and the limiting teeth 16 thereon are pushed upward under the action of the gear column 12. , and compress the spring 18, and when the spring 18 rebounds, the limiting tooth 16 is inserted into the surface of the gear column 12, so that the gear column 12 cannot rotate, and the output shaft of the motor 6 is fixed and limited by the gear column 12 to avoid the reversal of the output shaft of the motor 6, thereby improving the stability of the clamping and fixing of the fixture and reducing the loss of the motor 6. When the motor 6 needs to be reversed to remove the wheel hub, the screw 13 is rotated to drive the transmission plate 15 to move up through the connecting plate 14 and the connecting rod 17, so that the limiting tooth 16 is separated from the tooth groove. The operation is simple. At the same time, the fixing nut on the surface of the limiting rod 19 is loosened. In the absence of the fixing nut, the angle of the mounting disk 4 can be adjusted by rotating the mounting shell 3, which provides convenience for subsequent polishing work.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A wheel hub polishing clamping fixture, comprising a mounting seat (1) and a wheel hub body (2), characterized in that: The upper surface of the mounting seat (1) is provided with a mounting opening, a mounting shell (3) is arranged inside the mounting opening, a mounting plate (4) is fixedly connected to the left surface of the mounting shell (3), a clamping mechanism for clamping and fixing the wheel hub body (2) is arranged on the surface of the mounting plate (4), and angle adjustment mechanisms are arranged on both sides of the mounting shell (3); The clamping mechanism comprises a cross-shaped mounting groove formed on the left side surface of the mounting plate (4); the inner wall of the cross-shaped mounting groove is rotatably connected to four threaded rods (5) arranged in a circumferential array; the opposite ends of the four threaded rods (5) are fixedly connected to secondary bevel gears (8); the surface of the threaded rod (5) is threadedly connected to a threaded block (9); the left side surface of the threaded block (9) is fixedly connected to a stop plate (10); a motor (6) is embedded in the interior of the mounting shell (3); the output shaft of the motor (6) extends into the interior of the cross-shaped mounting groove and is fixedly connected to a main bevel gear (7); the outer surface of the main bevel gear (7) is meshed with the four secondary bevel gears (8); and a limiting mechanism for fixing the output shaft of the motor (6) is provided at the top of the housing of the mounting shell (3).

2. The wheel hub polishing clamping fixture according to claim 1, characterized in that: The output shaft of the motor (6) is respectively connected to the four threaded rods (5) through a main bevel gear (7) and a secondary bevel gear (8), and the motor (6) drives the threaded rods (5) to move the threaded block (9).

3. The wheel hub polishing clamping fixture according to claim 1, characterized in that: The surface of the abutment plate (10) is embedded with a rubber anti-slip layer (11), the surface of the threaded block (9) is provided with a guide slide block, and the inner wall of the cross-shaped mounting groove is provided with a guide slide groove for the guide slide block to slide.

4. The wheel hub polishing clamping fixture according to claim 1, characterized in that: The limiting mechanism comprises a slot body (20) provided inside the mounting shell (3); the output shaft of the motor (6) is fixedly connected to a gear column (12) on its surface located inside the slot body (20); an operating slot is provided on the inner top wall of the slot body (20); a threaded hole is provided on the inner top wall of the operating slot and penetrates to the upper surface of the mounting shell (3); a screw rod (13) is threadedly connected to the inner wall of the threaded hole; one end of the screw rod (13) located inside the operating slot is rotatably connected to a connecting plate (14); a transmission plate (15) is provided on the lower surface of the connecting plate (14); a limiting tooth (16) is fixedly connected to the lower surface of the transmission plate (15); and a tooth groove matched with the limiting tooth (16) is provided on the surface of the gear column (12).

5. The wheel hub polishing clamping fixture according to claim 4, characterized in that: A plurality of connecting rods (17) are fixedly connected to the upper surface of the transmission plate (15); the top ends of the plurality of connecting rods (17) penetrate the upper surface of the connecting plate (14) and are slidably connected to the connecting plate (14); and a spring (18) is fixedly connected between the connecting plate (14) and the transmission plate (15).

6. The wheel hub polishing clamping fixture according to claim 4, characterized in that: Limiting slide blocks (21) are arranged on both sides of the transmission plate (15), and the inner wall of the operating groove is provided with limiting sliding grooves (22) for the limiting slide blocks (21) to slide.

7. The wheel hub polishing clamping fixture according to claim 1, characterized in that: The angle adjustment mechanism comprises two limit rods (19) respectively fixedly connected to two sides of the mounting shell (3); arc-shaped strip openings are provided on both sides of the mounting seat (1), and the two limit rods (19) respectively penetrate the two arc-shaped strip openings.

8. The wheel hub polishing clamping fixture according to claim 7, characterized in that: The surface of the limiting rod (19) is provided with an external thread, and the surface of the limiting rod (19) is threadedly connected to a fixing nut via the external thread, and one side of the fixing nut is in contact with one side of the mounting seat (1).

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