Split type clamping tool for brake disc

Abstract

The split type clamping tool for the brake disc comprises a base and a clamping head, the upper end of the base is provided with a positioning groove and a positioning hole A, a positioning pin is installed in the positioning hole A, the clamping head is provided with a positioning hole B corresponding to the positioning hole A, one end of the positioning pin is inserted in the positioning hole B, the clamping head is provided with a protruding portion matched with the positioning groove, and the protruding portion is provided with a clamping groove matched with the positioning groove. The clamping head and the base are positioned through the positioning groove and the positioning pin, and the clamping head is fixedly connected with the base through a bolt. The tool maintenance cost is reduced, the service life of the tool is prolonged, the production efficiency and stability are improved, and it is guaranteed that the machining sizes of castings are consistent.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile brake disc processing, and specifically relates to a split type clamping tool for brake disc. BACKGROUND

[0002] The automobile brake disc is a friction pair of disc brake, and in addition to the strength and rigidity required as a component, it should have a stable friction coefficient as high as possible, and appropriate wear resistance, heat resistance, heat dissipation and heat capacity, etc. Stable size fluctuation and low dynamic balance value are crucial factors for brake disc use.

[0003] The automobile brake disc is one of the main castings produced by the company, and the brake disc of disc brake is divided into solid type and ventilated type. The ventilated type brake disc is a ventilated disc. During the casting process, an automatic mechanical arm device is used to take materials, and then clamping is carried out through a chuck. However, the existing integral type clamping tool has the problems of unstable production and processing size, difficult maintenance, high safety risk and high cost. SUMMARY

[0004] The utility model discloses a split type clamping tool for brake disc.

[0005] The utility model discloses a split type clamping tool for brake disc, which comprises a base and a clamping head, the base is provided with a positioning groove and a positioning hole A on the upper end, a positioning pin is arranged in the positioning hole A, the clamping head is provided with a positioning hole B corresponding to the positioning hole A, one end of the positioning pin is inserted into the positioning hole B, the clamping head is provided with a protruding part matched with the positioning groove, the clamping head is positioned with the base through the positioning groove and the positioning pin, and the clamping head is connected and fixed with the base through bolts.

[0006] Further, the clamping head is provided with two through sink holes, the base is provided with screw holes corresponding to the sink holes, and the clamping head is connected with the base through sink bolts.

[0007] Further, the base body is L-shaped, the bottom surface of the base is provided with a rack, and the clamping head is installed at the short side of the L-shaped base.

[0008] Further, the contact surface of the clamping head and the brake disc is provided with a wear-resistant layer.

[0009] Compared with the prior art, this utility model has the following advantages: 1. The clamping head and the base adopt a separate design, and the clamping head can be replaced separately. When switching production models, the separate clamping head can be replaced directly, which has high switching efficiency; 2. When the clamping head is severely worn, a new clamping head can be replaced separately to avoid affecting normal production for a long time; 3. The clamping head can be heat treated separately to improve the hardness of its contact surface with the workpiece, thereby improving wear resistance, extending the service life of the clamping head, and reducing maintenance and replacement costs. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0011] Figure 2 This is the front view of this utility model;

[0012] Figure 3 yes Figure 2 Top view;

[0013] Figure 4 yes Figure 2 AA view;

[0014] Figure 5 This is an exploded view of the base and clamping head of this utility model;

[0015] In the diagram: 1. Brake disc; 2. Base; 3. Clamping head; 4. Bolt; 5. Locating pin; 6. Rack; 7. Locating groove; 8. Locating hole A. Detailed Implementation

[0016] See Figures 1-5 This embodiment is a split clamping fixture for a brake disc 1, including a base 2 and a clamping head 3. The upper end of the base 2 is provided with a positioning groove 7 and a positioning hole A8. A positioning pin 5 is installed in the positioning hole A8. The clamping head 3 is provided with a positioning hole B corresponding to the positioning hole A8. One end of the positioning pin 5 is inserted into the positioning hole B. The clamping head 3 is provided with a protrusion that matches the positioning groove 7. The clamping head 3 is positioned with the base 2 through the positioning groove 7 and the positioning pin 5. The clamping head 3 is connected and fixed to the base 2 by bolts 4.

[0017] Furthermore, the clamping head 3 is provided with two through countersunk holes, and the base 2 is provided with threaded holes corresponding to the countersunk holes. The clamping head 3 and the base 2 are connected by countersunk bolts 4.

[0018] Furthermore, the base 2 is L-shaped, and the bottom surface of the base 2 is provided with a rack 6. The clamping head 3 is installed on the short side of the L-shape.

[0019] Furthermore, the contact surface between the clamping head 3 and the brake disc 1 is provided with a wear-resistant layer. When replacing the clamping head 3, the new clamping head 3 is quickly positioned by the positioning groove 7 and the positioning pin 5, and then the bolt 4 is tightened to complete the replacement operation, thus achieving the purpose of quickly replacing the clamping head 3 and improving production efficiency.

[0020] Because the chuck 3 adopts a split design, it can be subjected to special heat treatment on its own, which increases the hardness of the surface of the chuck 3 in contact with the workpiece, forming a wear-resistant layer, improving its wear resistance, thereby extending the service life of the chuck 3, reducing replacement costs, and ensuring the accuracy of the workpiece machining dimensions.

[0021] During clamping, the base 2 is mounted on the chuck, which has a gear ring that engages with the rack 6. The chuck's drive unit drives the gear ring to rotate, thereby synchronously moving the three bases 2 radially, so that the clamping head 3 clamps the brake disc 1.

Claims

1. A split-type clamping fixture for brake discs, characterized in that: The device includes a base and a clamping head. The upper end of the base is provided with a positioning groove and a positioning hole A. A positioning pin is installed in the positioning hole A. The clamping head is provided with a positioning hole B corresponding to the positioning hole A. One end of the positioning pin is inserted into the positioning hole B. The clamping head is provided with a protrusion that matches the positioning groove. The clamping head is positioned with the base through the positioning groove and the positioning pin. The clamping head is connected and fixed to the base by bolts.

2. The split-type clamping fixture for brake discs according to claim 1, characterized in that: The clamping head has two through countersunk holes, and the base has threaded holes corresponding to the countersunk holes. The clamping head and the base are connected by countersunk bolts.

3. A split-type clamping fixture for a brake disc according to claim 1, characterized in that: The base body is L-shaped, and the bottom surface of the base is provided with a toothed rack. The clamping head is installed on the short side of the L-shape.

4. A split-type clamping fixture for a brake disc according to claim 1, characterized in that: The contact surface between the clamping head and the brake disc is provided with a wear-resistant layer.

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