Positioning tool for hub bearing end face machining

Abstract

The utility model relates to the technical field of bearing machining, in particular to a positioning tool for hub bearing end face machining, which comprises a machining table, three groups of supporting legs are fixedly mounted on the outer edge of the lower end face of the machining table, an outer ring and an inner ring are arranged on the upper end face of the machining table, and the inner ring is arranged inside the outer ring. The positioning mechanism is arranged, the threaded rod rotates, the first threaded sleeve and the second threaded sleeve which are in spiral transmission connection with the outer surface move oppositely, the first threaded sleeve carries the first connecting rod to move, the second threaded sleeve carries the second connecting rod to move, and the first connecting rod and the second connecting rod are rotationally connected with the ejector block. One group of the top blocks carries the outer clamping plates to move towards the inner side, the other group of the top blocks carries the inner clamping plates to move towards the outer side, the three groups of the inner clamping plates fix the inner ring, and the three groups of the outer clamping plates fix the outer ring, so that the bearing can be automatically positioned.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing processing, in particular to a positioning tool used for processing the end surface of a hub bearing. Background Art

[0002] At present, the end face runout of the third-generation hub bearing unit for automobiles is generally required to be 0.050mm, and some have a higher requirement of 0.035mm. With the existing process technology, the runout can be well controlled within this range when the process is normal.

[0003] However, some domestic and foreign customers have higher precision requirements for the end face runout of the third-generation hub bearing unit, that is, the end face runout value must be controlled within the range of 0.020mm or even 0.010mm.

[0004] Iron filings generated during the processing of the bolt holes of the outer wheel of the hub bearing sometimes pad the positioning contact part between the tooling and the outer wheel of the hub bearing, causing incorrect clamping position of the outer wheel of the hub bearing. The operator is also unable to identify whether the outer wheel of the hub bearing is clamped in place, resulting in excessive position tolerance of the bolt holes of the processed outer wheel of the hub bearing, affecting the assembly accuracy of the hub bearing, generating waste, and increasing the production costs of the enterprise.

[0005] The Chinese patent with the authorization announcement number CN214024689U discloses a positioning clamping device for processing bolt holes on the outer wheel of a hub bearing. The outer wheel of the hub bearing is clamped and processed by a positioning tool with airtight detection, and the outer wheel of the hub bearing is automatically judged whether the clamping of the outer wheel of the hub bearing is correct, and an alarm feedback is promptly given for incorrectly positioned parts, so as to avoid the position tolerance of the bolt holes of the processed outer wheel of the hub bearing, reduce waste, and increase economic benefits for the enterprise.

[0006] Although a bolt hole positioning clamping device for processing the outer wheel of a hub bearing avoids excessive position errors in the bolt holes of the processed outer wheel of the hub bearing, in actual use, a relatively cumbersome method is still used for positioning the bearing, which not only affects the processing efficiency but also requires manual assistance. Manual assistance is dangerous and can easily cause harm to workers. Summary of the invention

[0007] The technical problem to be solved by the utility model is to provide a positioning tool for automatically correcting and positioning the wheel hub bearing end surface.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning tool for wheel hub bearing end surface processing, comprising a processing table, three groups of supporting legs are fixedly installed at the outer edge of the lower end surface of the processing table, the upper end surface of the processing table is provided with an outer ring and an inner ring, the inner ring is arranged inside the outer ring, and a transmission mechanism and a positioning mechanism are arranged on the lower side of the processing table, the positioning mechanism comprises a fixed sleeve fixedly installed on the lower end surface of the processing table, a threaded rod is rotatably connected inside the fixed sleeve, a threaded sleeve 1 is spirally connected to the lower side of the outer surface of the threaded rod, a threaded sleeve 2 is spirally connected to the upper side of the outer surface of the threaded rod, a connecting rod 1 is rotatably connected to the outer surface of the threaded sleeve 1, and a connecting rod 2 is spirally connected to the outer surface of the threaded sleeve 2, a top block is provided on one side of the fixed sleeve, the connecting rod 1 and the connecting rod 2 are both rotatably connected to the top block, and a gear is fixedly installed on the lower end of the threaded rod.

[0009] Furthermore, a sliding groove three is provided on the outer surface of the fixing sleeve, and the connecting rod one and the connecting rod two are both slidably connected inside the sliding groove three.

[0010] The threaded rod is rotated to make the threaded sleeve 1 and the threaded sleeve 2 connected with the spiral transmission on the outer surface move towards each other, and the threaded sleeve 1 carries the connecting rod 1 to move.

[0011] Furthermore, the connecting rod 1, the connecting rod 2 and the top block are respectively provided with two groups and are symmetrically arranged, and the two groups of connecting rod 1 are both rotatably connected to the threaded sleeve 1, and the two groups of connecting rod 2 are both rotatably connected to the threaded sleeve 2.

[0012] The threaded sleeve 2 carries the connecting rod 2 to move, and both the connecting rod 1 and the connecting rod 2 are rotatably connected to the top block.

[0013] Furthermore, a first slide groove and a second slide groove are provided on the upper end surface of the processing table, the interior of the first slide groove is slidably connected to an outer clamping plate, and the interior of the second slide groove is slidably connected to an inner clamping plate.

[0014] Furthermore, one group of top blocks is fixedly connected to the inner clamping plate, and the other group of top blocks is fixedly connected to the outer clamping plate.

[0015] The above-mentioned components are symmetrically arranged in two groups, so the two groups of top blocks will move relative to each other. One group of top blocks carries the outer clamping plate to move inward, and one group of top blocks carries the inner clamping plate to move outward. Three groups of inner clamping plates fix the inner ring, and three groups of outer clamping plates fix the outer ring. In this way, the bearing can be automatically positioned.

[0016] Furthermore, the transmission mechanism includes three sets of gear rings rotatably connected to the inner sides of the support legs, and the three sets of gears are all meshed and transmission-connected with the gear rings.

[0017] By starting the motor, the output shaft of the motor drives one of the gear sets to rotate, and the three gear sets are meshed and connected through gear rings.

[0018] Furthermore, a motor is provided on the lower side of one group of the gears, and an upper output shaft of the motor is fixedly connected to the gears.

[0019] Furthermore, anti-skid pads are fixedly installed on the outer side of the inner clamping plate and the inner side of the outer clamping plate, and the anti-skid pads are made of rubber material.

[0020] Therefore, when one set of gears rotates, all three sets of gears rotate through the operation of the gear ring, and the threaded rods on the gears rotate.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] 1. The utility model sets a positioning mechanism, utilizes the rotation of the threaded rod, so that the threaded sleeve 1 and the threaded sleeve 2 connected by the outer surface spiral transmission move toward each other, the threaded sleeve 1 carries the connecting rod 1 to move, the threaded sleeve 2 carries the connecting rod 2 to move, and the connecting rod 1 and the connecting rod 2 are both rotatably connected with the top block, and the above components are symmetrically arranged in two groups, so the two groups of top blocks will move relative to each other, one group of top blocks carries the outer clamping plate to move inward, and one group of top blocks carries the inner clamping plate to move outward, three groups of inner clamping plates fix the inner ring, and three groups of outer clamping plates fix the outer ring, so that the bearing can be automatically positioned;

[0023] 2. The utility model sets a transmission mechanism, starts the motor so that the output shaft of the motor drives one of the gears to rotate, and the three gears are meshed and connected through the gear ring. Therefore, when one of the gears rotates, the three gears rotate through the operation of the gear ring, and the threaded rods on the gears rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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 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.

[0025] Figure 1 This is the overall structural view of the utility model;

[0026] Figure 2 For the utility model Figure 1 The enlarged schematic diagram at A in the middle;

[0027] Figure 3 A bottom view of the overall structure of the utility model;

[0028] Figure 4 For the utility model Figure 3 The enlarged schematic diagram of point B in the middle;

[0029] Figure 5 It is a cross-sectional view of the overall structure of the utility model;

[0030] Figure 6 For the utility model Figure 5 Enlarged schematic diagram at point C in the middle.

[0031] Description of reference numerals:

[0032] 1. Processing table; 2. Support legs; 3. Outer ring; 4. Inner ring; 5. Gear ring; 6. Motor; 7. Fixed sleeve; 8. Threaded rod; 9. Gear; 10. Threaded sleeve 1; 11. Connecting rod 1; 12. Threaded sleeve 2; 13. Connecting rod 2; 14. Top block; 15. Outer splint; 16. Inner splint; 17. Slide 1; 18. Slide 2; 19. Slide 3. DETAILED DESCRIPTION

[0033] 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.

[0034] See also Figures 1 to 6 , the utility model provides a technical solution:

[0035] A positioning tool for processing the end face of a hub bearing comprises a processing table 1, three groups of supporting legs 2 are fixedly installed at the outer edge of the lower end face of the processing table 1, an outer ring 3 and an inner ring 4 are arranged on the upper end face of the processing table 1, the inner ring 4 is arranged inside the outer ring 3, a transmission mechanism and a positioning mechanism are arranged on the lower side of the processing table 1, the positioning mechanism comprises a fixing sleeve 7 fixedly installed on the lower end face of the processing table 1, a threaded rod 8 is rotatably connected inside the fixing sleeve 7, a threaded sleeve 10 is spirally connected to the lower side of the outer surface of the threaded rod 8, a threaded sleeve 2 12 is spirally connected to the upper side of the outer surface of the threaded rod 8, a connecting rod 11 is rotatably connected to the outer surface of the threaded sleeve 10, a connecting rod 2 13 is spirally connected to the outer surface of the threaded sleeve 2 12, a top block 14 is arranged on one side of the fixing sleeve 7, and a connecting rod 11 is rotatably connected to the outer surface of the threaded sleeve 10. Rod 11 and connecting rod 2 13 are both rotatably connected to the top block 14, a gear 9 is fixedly installed on the lower end of the threaded rod 8, a slide groove 3 19 is provided on the outer surface of the fixed sleeve 7, and connecting rod 11 and connecting rod 2 13 are both slidably connected inside the slide groove 3 19. There are two groups of connecting rod 11, connecting rod 2 13 and top block 14, and they are symmetrically arranged. The two groups of connecting rod 11 are rotatably connected to the threaded sleeve 10, and the two groups of connecting rod 2 13 are rotatably connected to the threaded sleeve 2 12. The upper end surface of the processing table 1 is provided with a slide groove 17 and a slide groove 2 18, the inner sliding connection of the slide groove 17 is the outer splint 15, and the inner sliding connection of the slide groove 2 18 is the inner splint 16, one group of top blocks 14 is fixedly connected to the inner splint 16, and the other group of top blocks 14 is fixedly connected to the outer splint 15.

[0036] By rotating the threaded rod 8, the threaded sleeve 10 and the threaded sleeve 2 12 connected by the spiral transmission on the outer surface are made to move toward each other, the threaded sleeve 10 carries the connecting rod 11 to be displaced, the threaded sleeve 2 12 carries the connecting rod 2 13 to be displaced, and the connecting rod 11 and the connecting rod 2 13 are both rotatably connected to the top block 14. The above-mentioned components are symmetrically arranged in two groups, so the two groups of top blocks 14 will move relative to each other, one group of top blocks 14 carries the outer clamping plate 15 to move inward, and one group of top blocks 14 carries the inner clamping plate 16 to move outward, three groups of inner clamping plates 16 fix the inner ring 4, and three groups of outer clamping plates 15 fix the outer ring 3, so that the bearing can be automatically positioned.

[0037] The transmission mechanism includes three groups of gear rings 5 ​​rotatably connected to the inner sides of the support legs 2, and three groups of gears 9 are meshed and transmission-connected with the gear rings 5. A motor 6 is arranged on the lower side of one group of gears 9, and the upper output shaft of the motor 6 is fixedly connected to the gear 9. Anti-skid pads are fixedly installed on the outer side of the inner plate 16 and the inner side of the outer plate 15, and the anti-skid pads are made of rubber.

[0038] By starting the motor 6, the output shaft of the motor 6 drives one of the gear sets 9 to rotate, and the three gear sets 9 are meshed and connected through the gear ring 5. Therefore, when one of the gear sets 9 rotates, the three gear sets 9 rotate through the operation of the gear ring 5, and the threaded rods 8 on the gears 9 rotate.

[0039] Working principle: by starting the motor 6, the output shaft of the motor 6 drives one of the groups of gears 9 to rotate, and the three groups of gears 9 are meshed and connected through the gear ring 5. Therefore, when one group of gears 9 rotates, the three groups of gears 9 rotate through the operation of the gear ring 5, and the threaded rod 8 on the gear 9 rotates. The threaded rod 8 rotates to make the threaded sleeve 10 and the threaded sleeve 2 12 connected by the spiral transmission on the outer surface move toward each other, the threaded sleeve 10 carries the connecting rod 11 to be displaced, and the threaded sleeve 2 12 carries the connecting rod 2 13 to be displaced, and the connecting rod 11 and the connecting rod 2 13 are both rotatably connected with the top block 14. The above-mentioned components are symmetrically arranged in two groups, so the two groups of top blocks 14 will move relative to each other, one group of top blocks 14 carries the outer splint 15 to move inward, and one group of top blocks 14 carries the inner splint 16 to move outward, the three groups of inner splints 16 fix the inner ring 4, and the three groups of outer splints 15 fix the outer ring 3, so that the bearing can be automatically positioned.

[0040] 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 positioning tool for wheel hub bearing end surface processing, comprising a processing table (1), three sets of support legs (2) are fixedly installed at the outer edge of the lower end surface of the processing table (1), an outer ring (3) and an inner ring (4) are arranged on the upper end surface of the processing table (1), and the inner ring (4) is arranged inside the outer ring (3), characterized in that: A transmission mechanism and a positioning mechanism are arranged at the lower side of the processing table (1), wherein the positioning mechanism comprises a fixed sleeve (7) fixedly mounted on the lower end surface of the processing table (1), a threaded rod (8) being rotatably connected inside the fixed sleeve (7), a threaded sleeve 1 (10) being spirally connected to the lower side of the outer surface of the threaded rod (8), a threaded sleeve 2 (12) being spirally connected to the upper side of the outer surface of the threaded rod (8), a connecting rod 1 (11) being rotatably connected to the outer surface of the threaded sleeve 1 (10), a connecting rod 2 (13) being spirally connected to the outer surface of the threaded sleeve 2 (12), a top block (14) being arranged at one side of the fixed sleeve (7), the connecting rod 1 (11) and the connecting rod 2 (13) being rotatably connected to the top block (14), and a gear (9) being fixedly mounted at the lower end of the threaded rod (8).

2. A positioning tool for wheel hub bearing end surface processing according to claim 1, characterized in that: The outer surface of the fixing sleeve (7) is provided with a sliding groove three (19), and the connecting rod one (11) and the connecting rod two (13) are both slidably connected inside the sliding groove three (19).

3. A positioning tool for wheel hub bearing end surface processing according to claim 2, characterized in that: The connecting rod 1 (11), the connecting rod 2 (13) and the top block (14) are each provided in two groups correspondingly and symmetrically arranged, and the two groups of the connecting rod 1 (11) are both rotatably connected to the threaded sleeve 1 (10), and the two groups of the connecting rod 2 (13) are both rotatably connected to the threaded sleeve 2 (12).

4. A positioning tool for wheel hub bearing end surface processing according to claim 3, characterized in that: The upper end surface of the processing table (1) is provided with a first slide groove (17) and a second slide groove (18), the interior of the first slide groove (17) is slidably connected to an outer clamping plate (15), and the interior of the second slide groove (18) is slidably connected to an inner clamping plate (16).

5. A positioning tool for wheel hub bearing end surface processing according to claim 4, characterized in that: One group of top blocks (14) is fixedly connected to the inner clamping plate (16), and the other group of top blocks (14) is fixedly connected to the outer clamping plate (15).

6. A positioning tool for wheel hub bearing end surface processing according to claim 5, characterized in that: The transmission mechanism comprises three groups of gear rings (5) rotatably connected to the inner sides of the support legs (2), and three groups of gears (9) are all meshed and transmission-connected with the gear rings (5).

7. A positioning tool for wheel hub bearing end surface processing according to claim 6, characterized in that: A motor (6) is arranged on the lower side of one group of the gears (9), and an upper output shaft of the motor (6) is fixedly connected to the gears (9).

8. The positioning tool for wheel hub bearing end surface processing according to claim 7, characterized in that: Anti-skid pads are fixedly mounted on the outer side of the inner clamping plate (16) and the inner side of the outer clamping plate (15), and the anti-skid pads are made of rubber material.

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