Clamp for hub bearing machining

Abstract

The utility model relates to the technical field of bearing clamps, and particularly discloses a hub bearing machining clamp which comprises a machining table. The clamping pieces are movably connected to the machining table, and at least three sets of clamping pieces are annularly distributed at equal intervals; the sliding groove is formed in the machining table and corresponds to the clamping piece. The sliding block is connected in the sliding groove in a sliding mode, and the upper end of the sliding block is fixed to the clamping piece; the connecting plate is fixed to the bottom of the sliding block, and a threaded rod is in spiral transmission connection with the interior of the connecting plate. The clamping piece is matched with a driving structure in the machining table, a clamping and fixing mode can be adopted for the outer side of a large-size hub bearing, and an outward expanding and fixing mode is adopted for a small-size hub bearing; and the design of the clamping pieces can be better matched with the outer arc surfaces and the inner arc surfaces of the hub bearings with different sizes, the contact area of the clamping pieces to the hub bearings is kept, and therefore the stability of the clamping state is improved.

Description

Technical Field

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

[0002] The main function of the wheel hub bearing is to bear the weight and provide precise guidance for the rotation of the wheel hub. It is an indispensable part of the car, so it has the ability to bear both axial load and radial load. When drilling or grinding the wheel hub bearing, the wheel hub bearing needs to be clamped and positioned, and the corresponding fixture needs to be used to clamp the wheel hub bearing;

[0003] The Chinese patent with the authorization announcement number: CN210997688U discloses a wheel hub bearing processing fixture, which can quickly clamp the wheel hub bearing, thereby improving the clamping and positioning efficiency and processing efficiency of the wheel hub bearing;

[0004] The wheel hub bearing processing fixture has a complex structure and cumbersome operation steps, and can only clamp and fix bearings of a single size model. However, for bearings of larger or smaller sizes, matching fixtures are required when using them, which greatly increases production investment.

[0005] Therefore, a wheel hub bearing machining fixture is proposed. Summary of the invention

[0006] The utility model aims to provide a wheel hub bearing processing fixture with two fixing modes of stretching or clamping for wheel hub bearings of different sizes, 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 wheel hub bearing processing fixture, comprising a processing table;

[0008] A clamping piece movably connected to the processing table, wherein the clamping piece is at least three groups of annular pieces distributed at equal distances;

[0009] A hub bearing is arranged inside the clamping member.

[0010] A slide groove is provided on the processing table and corresponds to the clamping part;

[0011] A slider is slidably connected in the slide groove, and the upper end of the slider is fixed to the clamping member;

[0012] A connecting plate is fixed at the bottom of the slider, and a threaded rod is connected to the internal spiral transmission of the connecting plate.

[0013] Preferably, the outer part of the threaded rod is rotatably connected to a support plate 1 and a support plate 2 near both ends through bearings, and the tops of the support plates 1 and 2 are fixed to the processing table.

[0014] Preferably, one end of the threaded rod close to the supporting plate 2 is fixedly connected with the bevel gear 1, and the three groups of the bevel gear 1 are meshingly connected with the bevel gear 2.

[0015] Preferably, a transmission shaft is fixed to the lower end of the second bevel gear, and a driving motor is fixed to the bottom of the transmission shaft, and the driving motor is fixed to the inside of the processing table.

[0016] Preferably, the clamping member comprises a fixing plate, and an upper clamping plate and a lower clamping plate vertically fixedly connected to the fixing plate on both sides.

[0017] Preferably, the fixing plate, the upper clamping plate and the lower clamping plate form an I-shaped structure, and bearing plates are arranged on both sides of the fixing plate.

[0018] Preferably, the bearing plate is designed in an arc-shaped structure and is made of spring steel, and the upper and lower ends of the bearing plate are respectively fixed to the upper clamping plate and the lower clamping plate, and the front and rear ends of the bearing plate are fixed to the fixing plate.

[0019] Preferably, a cavity is formed between the bearing plate and the fixing plate, the cavity is filled with edge blocks, and the inner wall of the bearing plate and the outer surface of the fixing plate are provided with a plurality of edge holes that match the edge blocks.

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

[0021] The clamping member designed in the present application cooperates with the driving structure in the processing table, and can adopt a clamping and fixing method for the outer side of the larger-sized wheel hub bearing, and an outward stretching and fixing method for the smaller-sized wheel hub bearing. In addition, the design of the clamping member can better match the external and internal arc surfaces of wheel hub bearings of different sizes, maintain the contact area with the wheel hub bearing, and thus increase the stability of the clamping state. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some specific implementation methods 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 the overall structural view of the utility model;

[0024] Figure 2 It is a top view of the overall structure of the utility model;

[0025] Figure 3 This is a combined view of the processing table and the clamping member of the utility model;

[0026] Figure 4 This is a structural view of the clamping member of the utility model.

[0027] Description of reference numerals:

[0028] 1. Processing table; 2. Wheel hub bearing; 3. Clamping piece; 31. Upper clamping plate; 32. Lower clamping plate; 33. Fixed plate; 34. Load-bearing plate; 35. Edge block; 4. Slide groove; 5. Slider; 6. Connecting plate; 7. Support plate 1; 8. Threaded rod; 9. Support plate 2; 10. Bevel gear 1; 11. Bevel gear 2; 12. Transmission shaft; 13. Drive motor. 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] See also Figures 1 to 4 , the utility model provides a technical solution:

[0031] A wheel hub bearing processing fixture comprises a processing table 1;

[0032] A clamping member 3 movably connected to the processing table 1, wherein the clamping member 3 is at least three groups of annular members distributed at equal distances;

[0033] A wheel hub bearing 2 is arranged inside the clamping member 3;

[0034] A slide groove 4 is provided on the processing table 1 and corresponds to the clamping member 3;

[0035] A slider 5 is slidably connected to the slide groove 4, and the upper end of the slider 5 is fixed to the clamping member 3;

[0036] A connecting plate 6 is fixed at the bottom of the sliding block 5 , and a threaded rod 8 is connected to the connecting plate 6 via an internal spiral transmission.

[0037] Preferably, the outer part of the threaded rod 8 near the two ends is rotatably connected to a support plate 1 7 and a support plate 2 9 through bearings, and the support plate 1 7 and the top of the support plate are fixed to the processing table 1 .

[0038] Specifically, Figure 3As shown, one end of the threaded rod 8 close to the support plate 2 9 is fixedly connected with a bevel gear 10, and the three groups of bevel gears 10 are meshingly connected with a bevel gear 2 11, and a transmission shaft 12 is fixed to the lower end of the bevel gear 2 11, and a driving motor 13 is fixed to the bottom of the transmission shaft 12, and the driving motor 13 is fixed to the inside of the processing table 1.

[0039] By adopting the above technical solution, the external controller controls the driving motor 13 to rotate slowly, driving the transmission shaft 12 to rotate, and then driving the bevel gear 2 11 to rotate. At this time, the bevel gear 10 meshing with the bevel gear 2 11 rotates, and the threaded rod 8 fixed with the bevel gear 10 rotates, and the connecting plate 6 connected to the threaded rod 8 with a spiral transmission is smoothly displaced along the lower side of the slide groove 4 through the limit of the slider 5 and the slide groove 4. At this time, the clamping member 3 is displaced toward the center point of the processing table 1 or expanded outward (by controlling the rotation direction of the driving motor 13) outside the processing table 1. It is worth noting that the distribution positions of the three groups of clamping plates and the threaded rod 8 distributed on the lower side are different due to the different distribution positions of the bevel gear 10 and the different rotation directions of the meshing with the bevel gear 2 11. The user needs to change the rotation direction of the thread on the threaded rod 8 to ensure the synchronous displacement of the clamping member 3.

[0040] Specifically, Figure 4 As shown, the clamping member 3 includes a fixing plate 33 and an upper clamping plate 31 and a lower clamping plate 32 vertically fixedly connected to the upper and lower sides of the fixing plate 33. The fixing plate 33, the upper clamping plate 31 and the lower clamping plate 32 form an I-shaped structure, and a bearing plate 34 is arranged on both sides of the fixing plate 33.

[0041] By adopting the above technical solution, the I-shaped clamping member 3 cooperates with the bearing plate 34 to release the clamping fixation with the outer ring side surface or the inner ring side surface of the hub bearing 2 .

[0042] Specifically, Figure 4 As shown, the bearing plate 34 is designed in an arc-shaped structure and is made of spring steel. The upper and lower ends of the bearing plate 34 are respectively fixed to the upper clamping plate 31 and the lower clamping plate 32 , and the front and rear ends of the bearing plate 34 are fixed to the fixing plate 33 .

[0043] By adopting the above technical solution, the bearing plate 34 with elastic deformation can be better squeezed and deformed according to the curvature of the surface of the hub bearing 2, so that the bearing plate 34 can be better fitted and clamped and fixed with the hub bearing 2.

[0044] Specifically, Figure 4 As shown, a cavity is formed between the bearing plate 34 and the fixing plate 33 , and the cavity is filled with edge blocks 35 . The inner wall of the bearing plate 34 and the outer surface of the fixing plate 33 are provided with a plurality of edge holes that match the edge blocks 35 .

[0045] By adopting the above technical solution, the extruded support plate 34 is mainly displaced inside the cavity through the edge blocks 35. The edge blocks 35 abut against each other and are fixed in the edge holes to keep the support plate 34 in a fixed posture, so as to maintain the friction force against the surface of the hub bearing 2.

[0046] Working principle: During operation, the user first places the wheel hub bearing 2 between the clamping members 3, and then controls the driving motor 13 to run. The external controller controls the driving motor 13 to rotate slowly, driving the transmission shaft 12 to rotate, and then driving the bevel gear 2 11 to rotate. At this time, the bevel gear 10 meshing with the bevel gear 2 11 rotates, and the threaded rod 8 fixed with the bevel gear 10 rotates, while the connecting plate 6 connected to the threaded rod 8 with a spiral transmission is smoothly displaced along the lower side of the slide groove 4 through the limit of the slider 5 and the slide groove 4. At this time, the clamping member 3 is displaced or expanded outwardly toward the center point of the processing table 1 outside the processing table 1 (by controlling the rotation direction of the driving motor 13). It is worth noting that the distribution positions of the three groups of clamping plates and the threaded rod 8 distributed on the lower side are different in the distribution positions of the bevel gear 10 and the meshing rotation direction of the bevel gear 2 11. The user needs to change the rotation direction of the thread on the threaded rod 8 to ensure the synchronous displacement of the clamping member 3.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A wheel hub bearing processing fixture, comprising a processing table (1), characterized in that: A clamping member (3) movably connected to the processing table (1), wherein the clamping member (3) is at least three groups of annular members distributed at equal distances; A wheel hub bearing (2) is arranged inside the clamping member (3); A slide groove (4) is provided on the processing table (1) and corresponds to the clamping member (3); A slider (5) is slidably connected to the slide groove (4), and the upper end of the slider (5) is fixed to the clamping member (3); A connecting plate (6) is fixed at the bottom of the sliding block (5), and a threaded rod (8) is connected to the connecting plate (6) via an internal spiral transmission.

2. A wheel hub bearing processing fixture according to claim 1, characterized in that: The outer part of the threaded rod (8) near the two ends is rotatably connected to a support plate 1 (7) and a support plate 2 (9) via bearings, and the top of the support plate 1 (7) and the support plate are fixed to the processing table (1).

3. A wheel hub bearing processing fixture according to claim 2, characterized in that: One end of the threaded rod (8) close to the supporting plate 2 (9) is fixedly connected to a bevel gear 1 (10), and the three groups of bevel gear 1 (10) are meshingly connected to bevel gear 2 (11).

4. A wheel hub bearing processing fixture according to claim 3, characterized in that: A transmission shaft (12) is fixed to the lower end of the second bevel gear (11), and a driving motor (13) is fixed to the bottom of the transmission shaft (12), and the driving motor (13) is fixed inside the processing table (1).

5. A wheel hub bearing processing fixture according to claim 4, characterized in that: The clamping member (3) comprises a fixing plate (33) and an upper clamping plate (31) and a lower clamping plate (32) vertically fixedly connected to the upper and lower sides of the fixing plate (33).

6. A wheel hub bearing processing fixture according to claim 5, characterized in that: The fixing plate (33), the upper clamping plate (31) and the lower clamping plate (32) form an I-shaped structure, and bearing plates (34) are arranged on both sides of the fixing plate (33).

7. A wheel hub bearing processing fixture according to claim 6, characterized in that: The bearing plate (34) is designed in an arc-shaped structure and is made of spring steel. The upper and lower ends of the bearing plate (34) are respectively fixed to the upper clamping plate (31) and the lower clamping plate (32), and the front and rear ends of the bearing plate (34) are fixed to the fixing plate (33).

8. A wheel hub bearing processing fixture according to claim 7, characterized in that: A cavity is formed between the bearing plate (34) and the fixing plate (33), and the cavity is filled with an edge block (35). The inner wall of the bearing plate (34) and the outer surface of the fixing plate (33) are provided with a plurality of edge holes that match the edge blocks (35).

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