A multi-directional calibration device for a wheel hub

Abstract

The utility model provides a multi-directional calibration device for a wheel hub, which relates to the technical field of automobile repair equipment, including a workbench, a wheel hub tooling and a gantry, wherein a stretching mechanism is rotatably connected to the gantry, wherein the stretching mechanism includes a mounting beam, a fine-tuning mechanism, a driving cylinder and a stretching hook, wherein the fine-tuning mechanism includes a positioning shell, a fine-tuning worm, a driving worm wheel, a concentric gear, a synchronous rack and a rocker, wherein the fine-tuning worm and the driving worm wheel are meshed with each other, wherein the synchronous rack is provided with two oppositely arranged ones, wherein the two synchronous racks are respectively meshed with the upper and lower sides of the concentric gears, wherein the synchronous racks are provided with articulated rods, wherein the rocker is articulated with the articulated rods. In the utility model, the stretching angle of the stretching hook can be adjusted by the fine-tuning mechanism to adapt to the stretching calibration of different deformation angles.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile repair equipment, in particular to a multi-directional calibration device for a wheel hub. Background Art

[0002] When a car encounters an uneven road during driving, it is easy for the circumferential edge of the wheel hub to deform and twist, leading to loss of roundness. The deformation of the wheel hub will cause tire leakage and increase tire wear, thus posing a driving safety hazard. Therefore, the deformation of the wheel hub needs to be calibrated.

[0003] Therefore, the deformed wheel hub needs to be calibrated by manual tapping, which is labor-intensive, has low production efficiency, and requires a high level of technical skills from the personnel. It is difficult to ensure the accuracy of the product after plastic surgery. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a multi-directional calibration device for a wheel hub, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A multi-directional calibration device for a wheel hub, comprising a workbench, a wheel hub tooling and a gantry, wherein the gantry is rotatably connected with a stretching mechanism, the stretching mechanism comprising a mounting beam, a fine-tuning mechanism, a driving cylinder and a stretching hook, the mounting beam is rotatably connected to the gantry, the fine-tuning mechanism comprises a positioning shell, a fine-tuning worm, a driving worm wheel, a concentric gear, a synchronous rack and a rocker arm, the positioning shell is fixed to the lower end of the mounting beam, the fine-tuning worm is rotatably connected to the positioning shell, the fine-tuning worm and the driving worm wheel are meshed with each other, the driving worm wheel is rotatably connected in the positioning shell, the concentric gear is concentrically fixed with the driving worm wheel, the synchronous rack is provided with two oppositely arranged ones, the two synchronous racks are respectively meshed with the upper and lower sides of the concentric gears, the synchronous racks are each provided with a hinged rod, the rocker arm is hinged on the hinged rod, and the driving cylinder is fixed to the lower end of the rocker arm.

[0009] Preferably, the gantry is provided with a plurality of mounting holes, the mounting beam is vertically provided with a plurality of height adjustment holes, and the mounting beam is rotatably connected to the mounting holes via a latch.

[0010] Preferably, a limiting slide groove is provided on the inner wall of the positioning shell, the synchronous rack is slidably installed in the limiting slide groove, a horizontal through groove is provided on the positioning shell at a position corresponding to the hinge rod, and the hinge rod is slidably penetrated in the horizontal through groove.

[0011] Preferably, the swing rod is provided with a rotation hole and a swing rod slot hole, wherein one of the hinged rods is rotationally connected in the rotation hole, and the other hinged rod is slidingly connected in the swing rod slot hole.

[0012] Preferably, a rotating ring is provided at the upper end of the stretching hook, a rotating shaft is provided at the lower end of the driving cylinder, and the rotating ring is slidingly sleeved on the rotating shaft.

[0013] Preferably, a knob is provided at one end of the fine-tuning worm.

[0014] (III) Beneficial effects

[0015] The utility model provides a multi-directional calibration device for a wheel hub, which has the following beneficial effects:

[0016] 1. In the utility model, the deformed wheel hub is fixed on the wheel hub tooling, and the installation position and installation height of the stretching mechanism on the gantry are selected according to the deformation position of the wheel hub, so that the stretching hook can face the deformation position of the wheel hub, and the stretching hook is driven by the driving cylinder to pull the wheel hub deformation position for calibration correction. When the deformation position of the wheel hub is reset to a certain angle, it is necessary to change the stretching direction for re-stretching calibration. The worm can be fine-tuned to make the rocker arm rotate relative to the positioning shell to change the stretching angle of the stretching hook to adapt to the second calibration reset of the angle after the first calibration of the wheel hub, so as to ensure that the deformed wheel hub is calibrated to the best. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a multi-directional calibration device for a wheel hub according to the utility model;

[0018] Figure 2 It is a structural schematic diagram of the stretching mechanism in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the fine adjustment mechanism in the utility model;

[0020] Figure 4 It is a schematic diagram of the mechanism of fine-tuning the worm and driving the worm wheel in the utility model.

[0021] In the figure: 1. workbench; 2. wheel hub tooling; 3. gantry; 4. mounting beam; 5. driving cylinder; 6. stretching hook; 7. positioning shell; 8. fine-tuning worm; 9. driving worm wheel; 10. concentric gear; 11. synchronous rack; 12. rocker arm. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] The utility model provides a multi-directional calibration device for a wheel hub.

[0024] like Figure 1-4 As shown, it includes a workbench 1, a hub tooling 2 and a gantry 3, the gantry 3 is provided with a plurality of mounting holes, the gantry 3 is rotatably connected with a stretching mechanism, the stretching mechanism includes a mounting beam 4, a fine-tuning mechanism, a driving cylinder 5 and a stretching hook 6, the mounting beam 4 is vertically provided with a plurality of height adjustment holes, the mounting beam 4 is rotatably connected to the mounting holes through a latch, the mounting beam 4 is rotatably connected to the gantry 3, the fine-tuning mechanism includes a positioning shell 7, a fine-tuning worm 8, a driving worm wheel 9, a concentric gear 10, a synchronous rack 11 and a rocker 12, one end of the fine-tuning worm 8 is provided with a knob, the positioning shell 7 is fixed to the lower end of the mounting beam 4, the fine-tuning worm 8 is rotatably connected to the positioning shell 7, the fine-tuning worm 8 and the driving worm wheel 9 are meshed with each other, the driving worm wheel 9 is rotatably connected in the positioning shell 7, and the concentric gear The wheel 10 is fixed concentrically with the driving worm gear 9, and the synchronous rack 11 is provided with two oppositely arranged ones. The two synchronous racks 11 are respectively meshed with the upper and lower sides of the concentric gear 10. The inner wall of the positioning shell 7 is provided with a limited sliding groove, and the synchronous rack 11 is slidably installed in the limited sliding groove. The synchronous rack 11 is provided with a hinge rod, and a horizontal through groove is provided at the position corresponding to the hinge rod on the positioning shell 7. The hinge rod is slidably penetrated in the horizontal through groove, and a rotating hole and a slot hole of the rocker arm 12 are provided on the rocker arm 12, one of the hinge rods is rotatably connected in the rotating hole, and the other hinge rod is slidably connected in the slot hole of the rocker arm 12, and the driving cylinder 5 is fixed at the lower end of the rocker arm 12, and a rotating ring is provided at the upper end of the stretching hook 6, and a rotating shaft is provided at the lower end of the driving cylinder 5, and the rotating ring is slidably sleeved on the rotating shaft.

[0025] Working principle:

[0026] The deformed wheel hub in the utility model is bent at a certain angle at the deformation position. The height adjustment hole on the mounting beam 4 is selected according to the size of the wheel hub, and the mounting hole on the gantry 3 is selected according to the deformation position, so that the stretching hook 6 can just hook the deformation position of the wheel hub, and the deformation position of the wheel hub is stretched and reset by driving the cylinder 5. When the deformation position of the wheel hub is restored to a certain angle, when the stretching angle needs to be adjusted, the driving worm wheel 9 can be rotated by rotating the fine-tuning worm, so that the synchronous rack 11 meshing on the concentric gear 10 can slide left and right on the positioning shell 7, so as to drive the swing rod 12 to change the angle, so as to meet the angle adjustment demand of the stretching hook 6. The wheel hub can be stretched to the best calibration effect by adjusting the angle multiple times and stretching. In addition, the fine-tuning worm 8 and the driving worm wheel 9 are used in conjunction to achieve self-locking, so as to prevent the swing rod 12 from rotating after being compressed.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated 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 that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-directional calibration device for a wheel hub, comprising a workbench, a wheel hub tooling and a gantry, characterized in that: A stretching mechanism is rotatably connected to the gantry, and the stretching mechanism includes a mounting beam, a fine-tuning mechanism, a driving cylinder and a stretching hook. The mounting beam is rotatably connected to the gantry, and the fine-tuning mechanism includes a positioning shell, a fine-tuning worm, a driving worm wheel, a concentric gear, a synchronous rack and a rocker arm. The positioning shell is fixed to the lower end of the mounting beam, and the fine-tuning worm is rotatably connected to the positioning shell. The fine-tuning worm and the driving worm wheel are meshed with each other, and the driving worm wheel is rotatably connected in the positioning shell. The concentric gear is concentrically fixed with the driving worm wheel, and the synchronous rack is provided with two oppositely arranged ones, and the two synchronous racks are respectively meshed with the upper and lower sides of the concentric gears. The synchronous racks are provided with hinged rods, and the rocker arm is hinged on the hinged rod, and the driving cylinder is fixed to the lower end of the rocker arm.

2. A multi-directional calibration device for a wheel hub according to claim 1, characterized in that: The gantry is provided with a plurality of mounting holes, the mounting beam is vertically provided with a plurality of height adjustment holes, and the mounting beam is rotatably connected to the mounting holes through a latch.

3. A multi-directional calibration device for a wheel hub according to claim 2, characterized in that: The inner wall of the positioning shell is provided with a limit slot, the synchronous rack is slidably installed in the limit slot, and a horizontal through slot is provided on the positioning shell at a position corresponding to the hinge rod, and the hinge rod is slidably penetrated in the horizontal through slot.

4. The multi-directional calibration device for a wheel hub according to claim 3, characterized in that: The swing rod is provided with a rotation hole and a swing rod slot hole, wherein one of the hinged rods is rotationally connected in the rotation hole, and the other hinged rod is slidingly connected in the swing rod slot hole.

5. The multi-directional calibration device for a wheel hub according to claim 4, characterized in that: The upper end of the stretching hook is provided with a rotating ring, the lower end of the driving cylinder is provided with a rotating shaft, and the rotating ring is slidingly sleeved on the rotating shaft.

6. The multi-directional calibration device for a wheel hub according to claim 5, characterized in that: One end of the fine-tuning worm is provided with a knob.

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