Hub fixing and calibrating tool

Abstract

The utility model provides a hub fixing and calibrating tool, which relates to the technical field of tool clamps and comprises a fixing platform and a hub workpiece, a plurality of locking mechanisms are connected onto the fixing platform in a sliding manner, and each locking mechanism comprises a sliding base, a clamp component and a positioning frame. The lower edge of the hub workpiece is inserted between the supporting clamping piece and the movable clamping head in a concave-convex fit mode, a displacement beam rod is arranged at the rear end of the movable clamping head, and the positioning frame comprises a sliding ball seat fixed to the supporting clamping piece, a positioning ball block and a sliding ball block, and the positioning ball block and the sliding ball block are rotationally connected to the two sides of the sliding ball seat. The movable clamping head can rotate to adapt to a deformed hub workpiece after being pressed by sliding the ball seat, and it is guaranteed that the hub workpiece can be clamped by the locking mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to a wheel hub fixing and calibrating tooling. Background Art

[0002] The wheel hub is a cylindrical metal part whose inner profile supports the tire and whose center is mounted on the shaft. When a car collides, the wheel hub is prone to deformation, so the wheel hub needs to be calibrated. Before calibration, the wheel hub usually needs to be fixed on a calibration fixture to facilitate the calibration operation.

[0003] Existing calibration tools usually use a driving device to drive multiple fixed chucks that match the concave and convex edges of the hub to synchronously approach and clamp on the edge of the hub to fix the hub. However, the deformation of the hub is random. The hub to be calibrated may appear irregularly oval or slightly twisted, resulting in edge deformation that does not match the fixed chucks. Therefore, synchronous clamping of multiple fixed chucks may cause the hub to fail to be clamped or the clamping force may be too large, causing the hub to break. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a wheel hub fixing and calibration tooling, 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 wheel hub fixing and calibration tool comprises a fixed platform and a wheel hub workpiece, wherein the fixed platform is slidably connected with a plurality of locking mechanisms, wherein the locking mechanisms comprise a sliding base, a clamp assembly and a positioning frame, wherein the sliding base is slidably connected to the fixed platform, wherein the clamp assembly is connected to the sliding base, wherein the clamp assembly comprises a supporting clip and a movable chuck, wherein the lower edge of the wheel hub workpiece is concavely and convexly fitted and inserted between the supporting clip and the movable chuck, wherein a displacement beam is arranged at the rear end of the movable chuck, and wherein the displacement beam is rotatably connected to the positioning frame.

[0009] Preferably, the positioning frame includes a sliding ball seat fixed on a supporting clip, a positioning ball block and a sliding ball block rotatably connected to both sides of the sliding ball seat, a displacement hole is provided in the middle of the sliding ball seat, and arc-shaped sliding grooves are provided at both ends, the inner diameter of the displacement hole is larger than the outer diameter of the displacement beam, the positioning ball block and the sliding ball block are arranged on one side of the sliding ball seat to have an arc-shaped spherical surface that matches the arc-shaped sliding groove, the positioning ball block is fixed on the displacement beam, the sliding ball block is slidably connected to the displacement beam, the sliding ball block is abutted against a support block, and the support block is fixedly connected to the positioning ball block.

[0010] Preferably, a connecting block is fixed on the positioning ball block, an adjusting screw is rotatably connected to the connecting block, and the adjusting screw is threadedly connected to the supporting block.

[0011] Preferably, the positioning ball block is threadedly connected to the displacement beam.

[0012] Preferably, a plurality of clamping grooves are evenly distributed on the circumference of the fixed platform, the sliding base is slidably connected in the clamping grooves, a linkage plate is rotatably connected in the middle of the fixed platform, a synchronous connecting rod is connected between the linkage plate and the sliding base, and the synchronous connecting rod is L-shaped, with both ends hinged to the linkage plate and the sliding base respectively.

[0013] Preferably, a driving base is fixed on the sliding base, a balancing rod is symmetrically extended to both sides of the driving base, and two driving cylinders are symmetrically connected to both ends of the balancing rod.

[0014] Preferably, the driving base is provided with an adjustment slot hole, a positioning screw is inserted into the adjustment slot hole, and the positioning screw is threadedly connected to the sliding base.

[0015] (III) Beneficial effects

[0016] The utility model provides a wheel hub fixing and calibration tooling, which has the following beneficial effects:

[0017] 1. The utility model can drive the sliding base to slide in the clamping groove by driving the cylinder, so as to drive the clamp assembly to clamp the hub workpiece, the supporting clip is inserted into the bottom of the hub workpiece, the movable chuck abuts against the upper side of the lower edge of the hub workpiece, and the driving cylinder clamps continuously. After the movable chuck is pressurized, the positioning ball block and the sliding ball block will be deflected in the arc groove of the sliding ball seat, so that the angle at which the movable chuck abuts against the hub workpiece is adapted to the deformation surface of the hub workpiece, thereby achieving the purpose of clamping the hub workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a wheel hub fixing and calibration tooling of the utility model;

[0019] Figure 2The structure diagram of the fixed platform in the utility model is shown in FIG. Figure 1 ;

[0020] Figure 3 The structure diagram of the fixed platform in the utility model is shown in FIG. Figure 2 ;

[0021] Figure 4 It is a structural schematic diagram of the locking mechanism in the utility model;

[0022] Figure 5 It is a cross-sectional view of the locking mechanism in the utility model.

[0023] In the figure: 1. fixed platform; 2. wheel hub workpiece; 3. sliding base; 4. linkage plate; 5. synchronous connecting rod; 6. supporting clip; 7. movable chuck; 8. displacement beam; 9. sliding ball seat; 10. positioning ball block; 11. sliding ball block; 12. supporting block; 13. connecting block; 14. adjusting screw; 15. driving base; 16. balancing rod; 17. driving cylinder. DETAILED DESCRIPTION

[0024] 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.

[0025] The utility model provides a wheel hub fixing and calibration tool.

[0026] like Figure 1-5As shown, it includes a fixed platform 1 and a hub workpiece 2, the fixed platform 1 has four clamping slots evenly distributed on its circumference, the fixed platform 1 is slidably connected with four locking mechanisms, the locking mechanisms include a sliding base 3, a fixture assembly and a positioning frame, the sliding base 3 is slidably connected to the fixed platform 1, the sliding base 3 is slidably connected in the clamping slot, the fixed platform 1 is rotatably connected with a linkage plate 4 in the middle, the linkage plate 4 is set to a square, the four corners of the linkage plate 4 are provided with hinge holes, and the linkage plate 4 is connected to the sliding base 3 with a synchronous The connecting rod 5 is L-shaped, and its two ends are hinged to the linkage plate 4 and the sliding base 3 respectively. The clamp assembly is connected to the sliding base 3. The clamp assembly includes a supporting clip 6 and a movable clamp 7. The upper side of the supporting clip 6 facing the wheel hub workpiece 2 is set as an inclined supporting surface. The lower edge of the wheel hub workpiece 2 is inserted between the supporting clip 6 and the movable clamp 7 in a concave-convex fit. The rear end of the movable clamp 7 is provided with a displacement beam 8, and the displacement beam 8 is rotatably connected to the positioning frame. The positioning frame includes a sliding ball seat 9 fixed on the supporting clip 6, a rotating The positioning ball blocks 10 and the sliding ball blocks 11 are dynamically connected to the two sides of the sliding ball seat 9. The middle part of the sliding ball seat 9 is provided with a displacement hole, and arc-shaped sliding grooves are provided at both ends. The inner diameter of the displacement hole is larger than the outer diameter of the displacement beam 8. The positioning ball block 10 and the sliding ball block 11 are arranged on the side facing the sliding ball seat 9 as arc-shaped spherical surfaces that match the arc-shaped sliding grooves. The positioning ball block 10 is threadedly connected to the displacement beam 8, and the sliding ball block 11 is slidingly connected to the displacement beam 8. The sliding ball block 11 is abutted with a support block 12, and a connecting block is fixed on the positioning ball block 10 13, an adjusting screw 14 is rotatably connected to the connecting block 13, and the adjusting screw 14 is threadedly connected to the supporting block 12, a driving base 15 is fixed to the sliding base 3, an adjusting slot is provided on the driving base 15, a positioning screw is inserted into the adjusting slot, and the positioning screw is threadedly connected to the sliding base 3, a balancing rod 16 is symmetrically extended to both sides of the driving base 15, two driving cylinders 17 are symmetrically connected to both ends of the balancing rod 16, and the two driving cylinders 17 are symmetrically connected between two driving bases 15 arranged opposite to each other.

[0027] Working principle:

[0028] The cam 15 is pressed against the support frame 16 and the cam 16 is pressed against the support frame 16, and the cam 16 is pressed against the support frame 16, so that the cam 16 is pressed against the support frame 16, and the cam 16 is pressed against the support frame 16, so that the cam 16 is pressed against the support frame 16, and the cam 16 is pressed against the support frame 16, and the cam 16 is pressed against the support frame 16, and the cam 16 is pressed against the support frame 16,

[0029] Although 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 wheel hub fixing and calibration tool, comprising a fixing platform and a wheel hub workpiece, characterized in that: The fixed platform is slidably connected with a plurality of locking mechanisms, and the locking mechanisms include a sliding base, a clamp assembly and a positioning frame. The sliding base is slidably connected to the fixed platform, and the clamp assembly is connected to the sliding base. The clamp assembly includes a supporting clip and a movable chuck. The lower edge of the hub workpiece is inserted between the supporting clip and the movable chuck in a concave-convex fitting manner. A displacement beam is provided at the rear end of the movable chuck, and the displacement beam is rotatably connected to the positioning frame.

2. The wheel hub fixing and calibration tool according to claim 1, characterized in that: The positioning frame includes a sliding ball seat fixed on a supporting clip, a positioning ball block and a sliding ball block rotatably connected to both sides of the sliding ball seat, a displacement hole is provided in the middle of the sliding ball seat, and arc-shaped sliding grooves are provided at both ends, the inner diameter of the displacement hole is larger than the outer diameter of the displacement beam, the positioning ball block and the sliding ball block are arranged on one side of the sliding ball seat to form an arc-shaped spherical surface that matches the arc-shaped sliding groove, the positioning ball block is fixed on the displacement beam, the sliding ball block is slidably connected to the displacement beam, the sliding ball block is in contact with a support block, and the support block is fixedly connected to the positioning ball block.

3. The wheel hub fixing and calibration tool according to claim 2, characterized in that: A connecting block is fixed on the positioning ball block, an adjusting screw is rotatably connected to the connecting block, and the adjusting screw is threadedly connected to the supporting block.

4. The wheel hub fixing and calibration tool according to claim 3, characterized in that: The positioning ball block is threadedly connected to the displacement beam rod.

5. The wheel hub fixing and calibration tool according to claim 4, characterized in that: A number of clamping grooves are evenly distributed on the circumference of the fixed platform, the sliding base is slidably connected in the clamping grooves, a linkage plate is rotatably connected to the middle of the fixed platform, a synchronous connecting rod is connected between the linkage plate and the sliding base, the synchronous connecting rod is L-shaped, and both ends are hinged to the linkage plate and the sliding base respectively.

6. The wheel hub fixing and calibration tool according to claim 5, characterized in that: A driving base is fixed on the sliding base, a balancing rod is symmetrically extended to both sides of the driving base, and two driving cylinders are symmetrically connected to the two ends of the balancing rod.

7. The wheel hub fixing and calibration tool according to claim 6, characterized in that: The driving base is provided with an adjusting slot hole, a positioning screw is inserted into the adjusting slot hole, and the positioning screw is threadedly connected to the sliding base.

Images