Positioning machining mechanism for automobile hub bearing assembly

Abstract

The utility model provides an automobile hub bearing assembly positioning machining mechanism which comprises a bottom plate, connecting plates are fixedly connected to the two sides of the top of the bottom plate, a mounting plate is fixedly connected between the tops of the two connecting plates, and a through hole is formed between the top and the bottom of the mounting plate. Compared with the prior art, the device has the advantages that after the lifting adjusting assembly is started to push the extrusion base to be extruded into the annular air bag, due to the fact that the annular air bag is made of rubber, has elasticity and is filled with gas, the outer ring face of the annular air bag with the extruded inner ring protrudes outwards, and the outer diameter is enlarged; the annular air bag can be tightly attached and fixed to the hub bearing inner ring arranged outside the fixing ring in a sleeving mode, and the ductility of the annular air bag is good, so that the contact area of the outer ring face of the annular air bag and an inner shaft ring of the automobile hub bearing is increased, and then the positioning and machining stability of the automobile hub bearing assembly is improved.

Description

Technical Field

[0001] The utility model discloses a positioning and processing mechanism for an automobile wheel hub bearing assembly, and belongs to the field of automobile wheel hub bearing processing equipment. Background Art

[0002] In the automobile manufacturing process, wheel hub bearing assembly positioning and processing equipment is usually used to accurately locate and process the key parts of automobile wheel hub bearing assemblies. The wheel hub bearing assemblies are accurately positioned mainly through positioning fixtures. The fixtures can usually be adjusted and replaced according to different wheel hub bearing assembly sizes and shapes.

[0003] In the prior art, although the positioning fixture can be adjusted and replaced according to the size and shape of the wheel hub bearing assembly, during the process of fixing the automobile wheel hub bearing assembly, although the fixture is adapted, it is still necessary to adjust the spacing between the fixtures according to the bearing size to facilitate accurate positioning of the wheel hub bearing assembly. However, this also results in a gap in the contact area between the fixture and the bearing assembly, resulting in a small contact area and a reduced friction, which in turn reduces the stability of the positioning processing of the automobile wheel hub bearing assembly.

[0004] In summary, the utility model therefore provides a positioning and processing mechanism for an automobile hub bearing assembly to solve the above-mentioned problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a positioning and processing mechanism for an automobile hub bearing assembly to solve the problem proposed in the above background technology that the small contact area between the clamp and the hub bearing assembly leads to insufficient friction, thus affecting the stability of the positioning processing.

[0006] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a positioning and processing mechanism for an automobile wheel hub bearing assembly, comprising a base plate, connecting plates are fixedly connected to both sides of the top of the base plate, a mounting plate is fixedly connected between the tops of the two connecting plates, a through hole is opened between the top and the bottom of the mounting plate, a fixing ring is fixedly connected to the top of the mounting plate and located directly above the through hole, an annular airbag is embedded between the outer ring surface and the inner ring surface of the fixing ring, a lifting and lowering adjustment component is fixedly connected to the base plate and located directly below the through hole, and an extrusion seat is fixedly connected to the top of the lifting and lowering adjustment component and located inside the through hole.

[0007] Furthermore, the interior of the fixing ring is connected to the interior of the through hole, and the top and bottom of the inner ring surface of the annular airbag are both rounded and smooth.

[0008] Furthermore, two sides of the main cross-section of the outer ring of the annular airbag are in the shape of mirror-symmetrical circular arcs, and the fixing ring is fixedly connected to the annular airbag.

[0009] Furthermore, the lifting and adjusting assembly includes two fixed plates, which are respectively fixedly connected to both sides of the top of the base plate, one side of one of the fixed plates and located at the top of the base plate is fixedly connected to a chassis, a motor is fixedly connected to the inside of the chassis, a bidirectional screw is fixedly connected to the output end of the motor, one end of the bidirectional screw passes through the chassis and a fixed plate in sequence and extends to one side of the other fixed plate, transmission seats are sleeved on both sides of the rod surface of the bidirectional screw and located at the top of the base plate, the front and back sides of the two transmission seats are rotatably connected to transmission rods through rotating shafts, and connecting seats are hinged between the top ends of the two adjacent transmission rods through pins, and the tops of the two connecting seats extend to both sides of the bottom of the extrusion seat respectively.

[0010] Furthermore, the bidirectional screws are rotatably connected to the two fixing plates, and the bidirectional screws are rotatably connected to the chassis.

[0011] Furthermore, the bottoms of the two transmission seats are slidably connected to the top of the base plate, and the top of the base plate is provided with a sliding groove that cooperates with the sliding connection of the two transmission seats.

[0012] Furthermore, the two transmission seats are both threadedly connected to the bidirectional screw, and the thread directions of the internal threaded holes of the two transmission seats are opposite.

[0013] Furthermore, the two connecting seats are fixedly connected to the extrusion seat, and the edges of the top and bottom of the extrusion seat are both chamfered and smooth.

[0014] Beneficial effects of the utility model:

[0015] After starting the lifting and adjusting component to push the extrusion seat into the annular airbag, since the annular airbag itself is made of rubber and has elasticity and is filled with gas, the outer ring surface of the annular airbag squeezed at the inner ring bulges outward and the outer diameter expands, so that it can fit tightly and fix with the inner ring of the hub bearing sleeved on the outside of the fixing ring, and the annular airbag has good ductility, thereby increasing the contact area between the outer ring surface of the annular airbag and the inner shaft ring of the automobile hub bearing, thereby increasing the positioning and processing stability of the automobile hub bearing assembly.

[0016] By squeezing the annular airbag to expand the outer diameter and fix the inner ring of the automobile hub bearing, the outer surface material of the annular airbag is relatively soft, thereby reducing the friction suffered during the positioning processing of the automobile hub bearing assembly and improving the positioning processing quality of the automobile hub bearing assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0018] Figure 1This is a schematic structural perspective view of a positioning and processing mechanism for an automobile hub bearing assembly according to the utility model;

[0019] Figure 2 This is a schematic front view of the structure of a positioning and processing mechanism for an automobile hub bearing assembly according to the utility model;

[0020] Figure 3 This is a main cross-sectional view showing the structure of a positioning and processing mechanism for a hub bearing assembly of an automobile according to the utility model;

[0021] Figure 4 for Figure 2 A schematic bottom view of the structure of the lifting and adjusting assembly shown;

[0022] Figure 5 This is another schematic main sectional view of the structure of a positioning and processing mechanism for an automobile hub bearing assembly of the utility model.

[0023] In the figure: 1, bottom plate; 2, connecting plate; 3, mounting plate; 4, through hole; 5, fixing ring; 6, annular airbag; 7, lifting adjustment component; 8, extrusion seat; 71, fixing plate; 72, chassis; 73, motor; 74, bidirectional screw; 75, transmission seat; 76, transmission rod; 77, connecting seat. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] See also Figure 1-5 The utility model provides a technical solution: a positioning and processing mechanism for an automobile wheel hub bearing assembly, comprising a bottom plate 1, connecting plates 2 are fixedly connected to both sides of the top of the bottom plate 1, a mounting plate 3 is fixedly connected between the tops of the two connecting plates 2, a through hole 4 is opened between the top and the bottom of the mounting plate 3, a fixing ring 5 is fixedly connected to the top of the mounting plate 3 and located directly above the through hole 4, an annular airbag 6 is embedded between the outer ring surface and the inner ring surface of the fixing ring 5, a lifting and lowering adjustment component 7 is fixedly connected to the bottom plate 1 and located directly below the through hole 4, an extrusion seat 8 is fixedly connected to the top of the lifting and lowering adjustment component 7 and located inside the through hole 4, and the extrusion seat 8 is cylindrical.

[0026] See also Figure 2-5The interior of the fixing ring 5 is connected with the interior of the through hole 4, and the top and bottom of the inner ring surface of the annular airbag 6 are rounded and smooth, which is convenient for the extrusion seat 8 to move up and down at the inner ring of the annular airbag 6. The two sides of the main cross-section of the outer ring of the annular airbag 6 are mirror-symmetrical arcs. The fixing ring 5 is fixedly connected to the annular airbag 6. The diameter of the top of the extrusion seat 8 is larger than the diameter of the inner ring of the annular airbag 6. After the extrusion seat 8 is squeezed into the interior of the annular airbag 6, since the annular airbag 6 itself is made of rubber and has elasticity, and is filled with gas, the outer ring surface of the annular airbag 6 squeezed at the inner ring bulges outward, and the outer diameter is expanded, so that it can be tightly fitted and fixed with the inner ring of the hub bearing sleeved on the outside of the fixing ring 5.

[0027] See also Figure 2-4 The lifting and lowering adjustment component 7 includes two fixed plates 71, which are respectively fixedly connected to the two sides of the top of the bottom plate 1. One side of a fixed plate 71 and located at the top of the bottom plate 1 is fixedly connected to a chassis 72. A motor 73 is fixedly connected to the inside of the chassis 72. A bidirectional screw 74 is fixedly connected to the output end of the motor 73. One end of the bidirectional screw 74 passes through the chassis 72 and a fixed plate 71 in turn and extends to one side of the other fixed plate 71. Transmission seats 75 are sleeved on both sides of the rod surface of the bidirectional screw 74 and located at the top of the bottom plate 1. The front and back sides of the two transmission seats 75 are rotatably connected to transmission rods 76 through rotating shafts. The tops of the two adjacent transmission rods 76 are hinged with connecting seats 77 through pins. The tops of the two connecting seats 77 extend to the two sides of the bottom of the extrusion seat 8 respectively. The motor 73 is connected to an external power supply and is provided with a power control switch. The motor 73 is a three-phase asynchronous motor, and the output end can be adjusted by forward and reverse rotation.

[0028] See also Figure 2-4 The two-way screw rod 74 is rotatably connected to the two fixed plates 71, the two-way screw rod 74 is rotatably connected to the chassis 72, the bottoms of the two transmission seats 75 are slidably connected to the top of the base plate 1, and the top of the base plate 1 is provided with a sliding groove that cooperates with the sliding connection of the two transmission seats 75. The two transmission seats 75 are threadedly connected to the two-way screw rod 74, and the thread directions of the internal threaded holes of the two transmission seats 75 are opposite. The two transmission seats 75 are limited by the sliding groove at the top of the base plate 1. When the two-way screw rod 74 rotates clockwise, the two transmission seats 75 can be driven to slide closer to each other at the top of the base plate 1. When the two-way screw rod 74 rotates counterclockwise, the two transmission seats 75 can be driven to slide away from each other at the top of the base plate 1.

[0029] See also Figure 2-4 The two connecting seats 77 are fixedly connected to the extrusion seat 8, and the edges of the top and bottom of the extrusion seat 8 are chamfered and smooth, so that when the extrusion seat 8 moves from bottom to top to the inner ring of the annular airbag 6, it will not scratch the surface of the annular airbag 6, and reduce the resistance of the extrusion seat 8 to move up and down.

[0030] Specific implementation method: The automobile wheel hub bearing to be positioned and processed is placed on the top of the bottom plate 1 and sleeved on the outside of the annular airbag 6 on the fixing ring 5. By starting the clockwise rotation switch of the output end of the motor 73 inside the lifting and adjusting component 7, the clockwise rotation switch of the bidirectional screw 74 can be driven, so that the two transmission seats 75 slide close to each other on the top of the bottom plate 1. The two transmission seats 75 push the two connecting seats 77 upward at the same time through the two transmission rods 76, thereby pushing the extrusion seat 8 upward. The extrusion seat 8 moves to the inside of the fixing ring 5 through the bottom of the through hole 4. As the extrusion seat 8 continues to move upward, the extrusion The top of the seat 8 moves to the inner ring of the annular airbag 6, and the diameter of the top of the extrusion seat 8 is larger than the diameter of the inner ring of the annular airbag 6. After the extrusion seat 8 is squeezed into the interior of the annular airbag 6, since the annular airbag 6 itself is made of rubber and has elasticity, and is filled with gas, the outer ring surface of the annular airbag 6 squeezed at the inner ring bulges outward, and the outer diameter is expanded, so that it can be tightly fitted and fixed with the inner ring of the hub bearing mounted on the outside of the fixing ring 5, and the ductility of the annular airbag 6 is good, thereby increasing the contact area between the outer ring surface of the annular airbag 6 and the inner shaft ring of the automobile hub bearing, thereby increasing the positioning and processing stability of the automobile hub bearing assembly.

[0031] By squeezing the annular airbag 6 to expand the outer diameter and fix the inner ring of the automobile hub bearing, the outer surface material of the annular airbag 6 is relatively soft, thereby reducing the friction suffered during the positioning processing of the automobile hub bearing assembly and improving the positioning processing quality of the automobile hub bearing assembly.

[0032] When the switch at the output end of the starter motor 73 is turned counterclockwise, the bidirectional screw 74 can be driven to rotate counterclockwise, thereby driving the two transmission seats 75 to slide away from each other on the top of the base plate 1, and the extrusion seat 8 can be driven to move downward and reset through the transmission rod 76 and the connecting seat 77. After the extrusion seat 8 is moved out of the inside of the annular airbag 6, the outer diameter of the annular airbag 6 is restored, and the inner shaft ring of the automobile wheel hub bearing is no longer fixed and can be disassembled.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A positioning and processing mechanism for an automobile hub bearing assembly, comprising a base plate (1), characterized in that: Both sides of the top of the base plate (1) are fixedly connected with connecting plates (2), a mounting plate (3) is fixedly connected between the tops of the two connecting plates (2), a through hole (4) is provided between the top and bottom of the mounting plate (3), a fixing ring (5) is fixedly connected to the top of the mounting plate (3) and located directly above the through hole (4), an annular air bag (6) is embedded between the outer ring surface and the inner ring surface of the fixing ring (5), a lifting and lowering adjustment component (7) is fixedly connected to the base plate (1) and located directly below the through hole (4), and an extrusion seat (8) is fixedly connected to the top of the lifting and lowering adjustment component (7) and located inside the through hole (4).

2. The automobile wheel hub bearing assembly positioning and processing mechanism according to claim 1, characterized in that: The interior of the fixing ring (5) is connected to the interior of the through hole (4), and the top and bottom of the inner ring surface of the annular airbag (6) are both rounded and smooth.

3. The automobile wheel hub bearing assembly positioning and processing mechanism according to claim 1, characterized in that: The two sides of the main cross-section of the outer ring of the annular airbag (6) are in the shape of mirror-symmetrical circular arcs, and the fixing ring (5) is fixedly connected to the annular airbag (6).

4. The automobile wheel hub bearing assembly positioning and processing mechanism according to claim 1, characterized in that: The lifting and lowering adjustment component (7) comprises two fixing plates (71), the two fixing plates (71) are respectively fixedly connected to two sides of the top of the bottom plate (1), one side of one fixing plate (71) and located at the top of the bottom plate (1) is fixedly connected to a chassis (72), the inside of the chassis (72) is fixedly connected to a motor (73), the output end of the motor (73) is fixedly connected to a bidirectional screw (74), one end of the bidirectional screw (74) passes through the chassis (72) and one fixing plate (71) in sequence and extends to one side of the other fixing plate (71), both sides of the bidirectional screw (74) and located at the top of the bottom plate (1) are sleeved with transmission seats (75), the front and back sides of the two transmission seats (75) are rotatably connected to transmission rods (76) through rotating shafts, the tops of the two adjacent transmission rods (76) are hinged with connecting seats (77) through pins, and the tops of the two connecting seats (77) extend to the two sides of the bottom of the extrusion seat (8) respectively.

5. The automobile wheel hub bearing assembly positioning and processing mechanism according to claim 4, characterized in that: The bidirectional screw rods (74) are both rotatably connected to the two fixing plates (71), and the bidirectional screw rods (74) are rotatably connected to the chassis (72).

6. The automobile wheel hub bearing assembly positioning and processing mechanism according to claim 4, characterized in that: The bottoms of the two transmission seats (75) are both slidably connected to the top of the base plate (1), and the top of the base plate (1) is provided with a sliding groove that cooperates with the slidable connection of the two transmission seats (75).

7. The automobile wheel hub bearing assembly positioning and processing mechanism according to claim 4, characterized in that: The two transmission seats (75) are both threadedly connected to the bidirectional screw rod (74), and the thread directions of the internal threaded holes of the two transmission seats (75) are opposite.

8. The automobile wheel hub bearing assembly positioning and processing mechanism according to claim 4, characterized in that: The two connecting seats (77) are both fixedly connected to the extrusion seat (8), and the edges of the top and bottom of the extrusion seat (8) are both chamfered and smooth.

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