Positioning clamp for cutting automobile hub

Abstract

The utility model discloses a positioning fixture for cutting automobile hubs, which relates to the technical field of hub processing equipment and comprises a mounting plate, a plurality of rectangular guide chutes are arranged on the mounting plate and are uniformly and annularly distributed, a sliding limit seat is slidably connected in each rectangular guide chute, and the sliding limit seat is slidably connected with the mounting plate. A rectangular guide sliding groove is formed in the mounting plate, a plurality of sliding limiting seats are arranged on the mounting plate, an anti-eccentric-wear assembly is arranged on each sliding limiting seat, each anti-eccentric-wear assembly comprises a detachable limiting push block, a driving assembly is arranged at the bottom of the mounting plate, and the driving assembly is used for driving the sliding limiting seats to synchronously move along the rectangular guide sliding groove. According to the anti-eccentric-wear assembly, when one anti-eccentric-wear assembly is abraded, the anti-eccentric-wear assembly can be independently replaced, the replacement process is convenient and rapid, and the situation that due to the fact that the abrasion degrees of the multiple anti-eccentric-wear assemblies are different, the center point of the clamped hub deviates is avoided, so that the precision and quality of follow-up hub cutting machining are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub processing equipment, in particular to a positioning fixture for cutting and processing automobile wheel hubs. Background Art

[0002] The positioning fixture for wheel hub cutting is a device used to fix and accurately determine the position of the wheel hub during mechanical processing such as cutting of automobile wheel hubs. It is mainly to ensure that the wheel hub is in the correct position and posture during processing to ensure processing accuracy and quality. It can firmly fix the wheel hub to prevent movement or shaking due to external forces during the cutting process, which will affect the processing effect.

[0003] The existing positioning fixture for wheel hub cutting processing usually has multiple clamping arms that can move synchronously. When positioning the wheel hub, the wheel hub is first placed in the center of the multiple clamping arms, and then the driving structure drives the multiple clamping arms to approach the wheel hub at the same time to clamp and fix the wheel hub.

[0004] However, with the use of the positioning fixture, the ends of the multiple clamping arms on the positioning fixture that are in contact with the wheel hub will produce different degrees of wear, and because the multiple clamping arms will move synchronously under the action of the driving structure, due to the different degrees of wear of the multiple clamping arms, when the worn clamping arms continue to clamp and position the wheel hub, although the wheel hub will be clamped, the center point of the wheel hub will be offset due to the different degrees of wear of the clamping arms, which will lead to a decrease in the accuracy of the subsequent cutting process of the wheel hub, affecting the quality of the final wheel hub.

[0005] Therefore, we proposed a positioning fixture for automobile wheel hub cutting. Utility Model Content

[0006] The utility model aims to provide a positioning fixture for cutting and processing automobile wheel hubs, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning fixture for automobile wheel hub cutting processing, including a mounting plate, a plurality of rectangular guide grooves are opened on the mounting plate, and the plurality of rectangular guide grooves are evenly distributed in an annular shape, each rectangular guide groove is slidably connected with a sliding limit seat, each sliding limit seat is provided with an anti-eccentric wear component, each anti-eccentric wear component includes a detachable limit push block, and a driving component is provided at the bottom of the mounting plate, and the driving component is used to drive the plurality of sliding limit seats to move synchronously along the rectangular guide grooves.

[0008] Through the above technical scheme, the utility model arranges an anti-eccentric wear component on the sliding limit seat, so that when a certain anti-eccentric wear component is worn, the anti-eccentric wear component can be replaced separately, and the replacement process is convenient and quick, avoiding the center point of the clamped wheel hub from being offset due to the different degrees of wear of multiple anti-eccentric wear components, thereby ensuring the accuracy of subsequent cutting processing of the wheel hub and the quality of the final wheel hub.

[0009] Furthermore, the driving assembly includes a rotating worm wheel and a worm, the rotating worm wheel is rotatably connected to the bottom of the mounting plate, the worm is arranged beside the rotating worm wheel, and the worm is meshingly connected to the rotating worm wheel.

[0010] Furthermore, a plurality of arc-shaped guide grooves are provided on the rotating worm wheel, a push slide rod is provided at the bottom of each sliding limit seat, each push slide rod corresponds to an arc-shaped guide groove, and each push slide rod is slidably connected to the corresponding arc-shaped guide groove.

[0011] Furthermore, the driving assembly also includes a servo motor, which is arranged at the bottom of the mounting plate, and the output shaft of the servo motor is connected to the worm gear.

[0012] Through the above technical scheme, when the servo motor rotates, it can drive the worm to rotate, and the worm continues to drive the worm wheel to rotate, and then can drive multiple push slides to move through multiple arc guide grooves, thereby driving multiple sliding limit seats to move synchronously along the direction of the rectangular guide grooves, so as to achieve synchronous clamping and release of the wheel hub.

[0013] Furthermore, a center positioning assembly is arranged at the center of the top of the mounting plate, and the center positioning assembly includes a center mounting rod, and a center positioning sleeve rod is threadedly connected to the top of the center positioning rod.

[0014] Through the above technical solution, before clamping the wheel hub, the center positioning hole of the wheel hub can be passed through the center positioning sleeve rod first, and according to the different diameters of the center positioning hole of the wheel hub, a center positioning sleeve rod matching the diameter of the center positioning hole of the wheel hub can be used, so that the position of the wheel hub can be positioned and the accuracy of the wheel hub positioning can be enhanced.

[0015] Furthermore, a plurality of flexible support pads for supporting the wheel hub are arranged on the top of the mounting plate.

[0016] Through the above technical solution, the bottom of the wheel hub can be supported and supported by multiple flexible support pads, which not only ensures the stability of the wheel hub clamping, but also prevents scratches and wear on the bottom of the wheel hub.

[0017] Furthermore, each anti-eccentric wear component includes an L-shaped sliding block, each L-shaped sliding block corresponds to a sliding limit seat, and each L-shaped sliding block is fixedly connected to the corresponding sliding limit seat.

[0018] Furthermore, each limit push block corresponds to an L-shaped sliding block, each limit push block is plugged into and connected to the end of the corresponding L-shaped sliding block away from the sliding limit seat, each L-shaped sliding block and the limit push block are connected by a plurality of fixing bolts, and each limit push block is provided with a flexible buffer pad.

[0019] Through the above technical solution, when an anti-eccentric wear component is worn, the corresponding fixing bolts can be removed, and then the limit push block inserted on the L-shaped sliding block can be removed and replaced, so as to ensure that the degree of wear of each flexible buffer pad in contact with the wheel hub is consistent, avoid eccentric wear, and ensure the accuracy of the wheel hub clamping and positioning.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] In the utility model, an anti-eccentric wear component is arranged on the sliding limit seat, so that when a certain anti-eccentric wear component is worn, the anti-eccentric wear component can be replaced separately, and the replacement process is convenient and quick, avoiding the center point of the clamped wheel hub from being offset due to the different degrees of wear of multiple anti-eccentric wear components, thereby ensuring the accuracy of subsequent cutting processing of the wheel hub and the quality of the final wheel hub. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a structural schematic diagram of another perspective of the utility model;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 It is a structural schematic diagram of the central mounting rod in the utility model;

[0026] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0027] Figure 6 It is a structural schematic diagram of the limit push block in the utility model.

[0028] In the figure: 1. Mounting plate; 2. L-shaped sliding block; 3. Rectangular guide groove; 4. Flexible support pad; 5. Center positioning sleeve; 6. Rotating worm gear; 7. Arc guide groove; 8. Pushing slide rod; 9. Worm; 10. Servo motor; 11. Center mounting rod; 12. Sliding limit seat; 13. Limit push block; 14. Fixing bolt; 15. Flexible buffer pad. 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 of 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] See also Figure 1-Figure 6 A positioning fixture for cutting and processing automobile wheel hubs comprises a mounting plate 1, on which a plurality of rectangular guide slots 3 are provided, and the plurality of rectangular guide slots 3 are evenly distributed in an annular shape, each rectangular guide slot 3 is slidably connected with a sliding limit seat 12, each sliding limit seat 12 is provided with an anti-eccentric wear component, and each anti-eccentric wear component includes a detachable limit push block 13, and a driving component is provided at the bottom of the mounting plate 1, and the driving component is used to drive the plurality of sliding limit seats 12 to move synchronously along the rectangular guide slots 3.

[0031] In the utility model, by arranging an anti-eccentric wear component on the sliding limit seat 12, when a certain anti-eccentric wear component is worn, the anti-eccentric wear component can be replaced separately, and the replacement process is convenient and quick, avoiding the center point of the clamped wheel hub from being offset due to the different degrees of wear of multiple anti-eccentric wear components, thereby ensuring the accuracy of subsequent cutting processing of the wheel hub and the quality of the final wheel hub.

[0032] See also Figure 1-Figure 3 The driving assembly includes a rotating worm wheel 6 and a worm 9. The rotating worm wheel 6 is rotatably connected to the bottom of the mounting plate 1. The worm 9 is arranged beside the rotating worm wheel 6, and the worm 9 is meshed with the rotating worm wheel 6. A plurality of arc guide grooves 7 are provided on the rotating worm wheel 6. A pushing slide bar 8 is provided at the bottom of each sliding limit seat 12. Each pushing slide bar 8 corresponds to an arc guide groove 7, and each pushing slide bar 8 is slidably connected to the corresponding arc guide groove 7. The driving assembly also includes a servo motor 10. The servo motor 10 is arranged at the bottom of the mounting plate 1, and the output shaft of the servo motor 10 is transmission-connected to the worm 9.

[0033] It should be noted that when the servo motor 10 rotates, it can drive the worm 9 to rotate, and the worm 9 continues to drive the worm wheel 6 to rotate, and then can drive multiple push slides 8 to move through multiple arc guide grooves 7, thereby driving multiple sliding limit seats 12 to move synchronously along the direction of the rectangular guide groove 3, so that the synchronous clamping and release of the wheel hub can be achieved.

[0034] See also Figure 4A center positioning assembly is arranged at the center of the top of the mounting plate 1. The center positioning assembly includes a center mounting rod 11. A center positioning sleeve rod 5 is threadedly connected to the top of the center positioning rod.

[0035] It is worth mentioning that the outer diameter of the center positioning sleeve 5 can be set to a variety of specifications. Before clamping the wheel hub, the center positioning hole of the wheel hub can be passed through the center positioning sleeve 5 first, and the center positioning sleeve 5 that matches the diameter of the center positioning hole of the wheel hub can be used according to the different diameters of the center positioning hole of the wheel hub, so that the position of the wheel hub can be located and the accuracy of the wheel hub positioning can be enhanced.

[0036] See also Figure 4 A plurality of flexible support pads 4 for supporting the wheel hub are arranged on the top of the mounting plate 1. The bottom of the wheel hub is supported by the plurality of flexible support pads 4, which not only ensures the stability of the wheel hub clamping, but also prevents the bottom of the wheel hub from being scratched and worn.

[0037] See also Figure 4-Figure 6 Each anti-bias wear component includes an L-shaped sliding block 2, each L-shaped sliding block 2 corresponds to a sliding limit seat 12, each L-shaped sliding block 2 is fixedly connected to the corresponding sliding limit seat 12, each limit push block 13 corresponds to an L-shaped sliding block 2, each limit push block 13 is plugged and connected to one end of the corresponding L-shaped sliding block 2 away from the sliding limit seat 12, each L-shaped sliding block 2 is connected to the limit push block 13 by a plurality of fixing bolts 14, and each limit push block 13 is provided with a flexible buffer pad 15, which is made of flexible rubber material, which can not only improve the friction when the flexible buffer pad 15 contacts the wheel hub, but also is not easy to cause wear to the wheel hub.

[0038] It should be noted that when one of the anti-eccentric wear components is worn, the corresponding fixing bolts 14 can be removed, and then the limit push block 13 inserted on the L-shaped sliding block 2 can be removed and replaced, so as to ensure that the degree of wear of each flexible buffer pad 15 in contact with the wheel hub is consistent, avoid eccentric wear, and ensure the accuracy of the wheel hub clamping and positioning.

[0039] It should be pointed out that, compared with the prior art, the present invention can replace the limit push block 13 separately, which is not only conducive to improving the clamping and positioning accuracy of the wheel hub, but also can reduce the use cost of the equipment, reduce material consumption, and be more environmentally friendly.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include"-"comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process-method-article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process-method-article or device.

[0041] 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 variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for automobile wheel hub cutting, comprising a mounting plate (1), characterized in that: The mounting plate (1) is provided with a plurality of rectangular guide grooves (3), and the plurality of rectangular guide grooves (3) are evenly distributed in an annular shape. A sliding limit seat (12) is slidably connected in each of the rectangular guide grooves (3). An anti-bias wear component is provided on each of the sliding limit seats (12). Each of the anti-bias wear components includes a detachable limit push block (13). A driving component is provided at the bottom of the mounting plate (1), and the driving component is used to drive the plurality of sliding limit seats (12) to move synchronously along the rectangular guide grooves (3).

2. The positioning fixture for automobile wheel hub cutting according to claim 1, characterized in that: The driving assembly comprises a rotating worm wheel (6) and a worm (9), wherein the rotating worm wheel (6) is rotatably connected to the bottom of the mounting plate (1), and the worm (9) is arranged beside the rotating worm wheel (6), and the worm (9) is meshingly connected to the rotating worm wheel (6).

3. The positioning fixture for automobile wheel hub cutting according to claim 2 is characterized in that: The rotating worm wheel (6) is provided with a plurality of arc-shaped guide grooves (7), and a push slide rod (8) is provided at the bottom of each sliding limit seat (12), and each push slide rod (8) corresponds to an arc-shaped guide groove (7), and each push slide rod (8) is slidably connected to the corresponding arc-shaped guide groove (7).

4. The positioning fixture for automobile wheel hub cutting according to claim 3 is characterized in that: The driving assembly further comprises a servo motor (10), the servo motor (10) being arranged at the bottom of the mounting plate (1), and the output shaft of the servo motor (10) being drivingly connected to the worm (9).

5. The positioning fixture for automobile wheel hub cutting according to claim 4, characterized in that: A center positioning assembly is arranged at the center of the top of the mounting plate (1), and the center positioning assembly comprises a center mounting rod (11), and a center positioning sleeve rod (5) is threadedly connected to the top of the center positioning rod.

6. The positioning fixture for automobile wheel hub cutting according to claim 1, characterized in that: A plurality of flexible support pads (4) for supporting the wheel hub are arranged on the top of the mounting plate (1).

7. The positioning fixture for automobile wheel hub cutting according to claim 1, characterized in that: Each of the anti-eccentric wear components comprises an L-shaped sliding block (2), each of the L-shaped sliding blocks (2) corresponds to a sliding limit seat (12), and each of the L-shaped sliding blocks (2) is fixedly connected to the corresponding sliding limit seat (12).

8. The positioning fixture for automobile wheel hub cutting according to claim 7, characterized in that: Each of the limit push blocks (13) corresponds to an L-shaped sliding block (2), and each of the limit push blocks (13) is plug-connected with an end of the corresponding L-shaped sliding block (2) away from the sliding limit seat (12). Each of the L-shaped sliding blocks (2) and the limit push blocks (13) are connected via a plurality of fixing bolts (14), and each of the limit push blocks (13) is provided with a flexible buffer pad (15).

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