CN105690154A - A jig for drilling a car wheel hub - Google Patents

Abstract

The present invention discloses a clamp for drilling holes in automobile wheel hubs, comprising a bottom plate, a plurality of parallel supporting plates arranged on the bottom plate, a clamping mechanism for clamping automobile wheel hubs on the supporting plates, and a positioning mechanism for positioning automobile wheel hubs, the top surface of the supporting plates being a positioning plane, the clamping mechanism comprising a vertically arranged hydraulic cylinder, a pressing plate connected to the piston rod of the hydraulic cylinder, and a nylon pressure head arranged at the clamping end of the pressing plate. The clamp for drilling holes in automobile wheel hubs of the present invention adopts automatic hydraulic cylinder clamping to replace manual operation of workers on the basis of setting up a long strip plate, thereby freeing up workers, saving workers' operation time and energy, and improving clamping efficiency.

Description

A jig for drilling a car wheel hub

technical field

The invention relates to a clamping device, in particular, the invention relates to a clamp for drilling and processing automobile wheel hubs.

Background technique

In the process of drilling and tapping threaded holes in automobile wheels, the general clamping of tooling is often realized by the general combined fixture on the machine tool. This kind of fixture is time-consuming and laborious to operate, which makes the processing efficiency of the wheel hub not high. So it is particularly urgent to select a special and efficient automobile wheel hub drilling and tapping threaded hole fixture.

Contents of the invention

The invention provides a fixture for drilling and processing automobile wheel hubs, which aims to conveniently and quickly clamp the automobile wheel hubs when drilling and tapping threaded holes.

In order to achieve the above object, the technical solution adopted by the present invention is: a jig for drilling and processing automobile wheel hubs, including a base plate, on which a plurality of supporting plates parallel to each other are arranged, and are used to press the automobile wheel hub on the supporting plates. The pressing mechanism and the positioning mechanism used for positioning the automobile wheel hub, the top surface of the supporting plate is a positioning plane, the pressing mechanism includes a vertically arranged hydraulic cylinder, a pressing plate connected with the piston rod of the hydraulic cylinder, and a pressure plate at the pressing end of the pressing plate. Nylon indenter.

The supporting plate is strip-shaped.

There are two supporting plates, and the two supporting plates are parallel.

The positioning mechanism includes two positioning pins arranged on the bottom plate, one of which is a circular positioning pin and the other is a diamond-shaped positioning pin, and the two positioning pins are located between the two supporting plates. There are positioning holes suitable for the two positioning pins.

The circular positioning pin is located at one side of the end of one of the supporting plates, and the rhombic positioning pin is located at the end of the other supporting plate, and is arranged in a staggered manner with the circular positioning pin.

A backing plate is arranged on the base plate, and the hydraulic cylinder is fixed on the backing plate.

There are three pressing mechanisms in total, and the three pressing mechanisms are arranged in a triangle.

Among the three pressing mechanisms, the first pressing mechanism is located between the two pallets, the second pressing mechanism is located at one end of one pallet, and the third pressing mechanism is located at the other pallet the middle side of the .

The thickness of the backing plate is greater than that of the supporting plate.

The jig for drilling automobile wheel hubs of the present invention adopts automatic hydraulic cylinder clamping instead of manual operation of workers on the basis of setting long slats, so that workers are freed, time and energy for workers' operation are saved, and clamping efficiency can be improved. ;At the same time, in order to ensure the influence of the fixture on the deformation of the workpiece during processing, a pressure head made of nylon is installed on the hydraulic cylinder for clamping the hub to prevent excessive permanent pressure deformation of the hub when the tool is clamped; The fixture also has the advantages of simple structure and convenient operation. When clamping the wheel hub every time, just put the hub on the set position with two holes on one side and start the hydraulic cylinder. The clamping efficiency is high, and the employees who process the product do not need to It can be operated after training, and has high processing efficiency and convenient use.

Description of drawings

This manual includes the following drawings, the contents shown are:

Fig. 1 is the structural representation of fixture of the present invention;

Fig. 2 is the top view of Fig. 1;

Figure 3 is a schematic diagram of the connection between the positioning bush and the pin;

Labeled in the figure:

1. Bottom plate; 2. Backing plate; 3. Circular positioning pin; 4. Supporting plate; 5. Diamond-shaped positioning pin; 6. Hydraulic cylinder; 7. Bushing; 8. Nylon pressure head; .

detailed description

The specific embodiment of the present invention will be described in further detail by describing the embodiments below with reference to the accompanying drawings, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and contribute to its implementation.

As shown in Fig. 1 and Fig. 2, a kind of jig for drilling a car wheel hub according to the present invention is used for clamping the car wheel hub when drilling and tapping threaded holes. The fixture includes a bottom plate 1, on which a plurality of parallel supporting plates 4, a pressing mechanism for pressing the automobile wheel hub on the supporting plate 4 and a positioning mechanism for positioning the automobile wheel hub, the supporting plate 4 The top surface is a positioning plane, and the pressing mechanism includes a vertically arranged hydraulic cylinder 6, a horizontally arranged pressing plate 9, and a nylon pressure head 8 located at the pressing end of the pressing plate 9. The pressing plate 9 is elongated, and one end of the pressing plate 9 is connected to the The piston rod of cylinder 6 is fixedly connected, and the other end is a compression end. When clamping, place the wheel hub with its bottom face down on the positioning plane formed by the top surface of the supporting plate 4, and the top surface of the supporting plate 4 should be ground on the same plane to ensure that the flatness of the positioning surface formed by it is in line with the processing of the wheel hub Technical requirements for position adjustment. The nylon pressure head 8 can protect the wheel hub and prevent the hydraulic cylinder 6 from causing damage to the wheel hub during the pressing process.

Specifically, the size of the base plate 1 is equivalent to that of the hub, and the top surface of the base plate 1 is a plane. 4 are parallel to each other, and the supporting plates 4 are elongated flat plates, and there is a certain distance between the two supporting plates 4 .

Preferably, the supporting plate 4 is fixed on the base plate 1 by two screws, and the length direction of the supporting plate 4 is parallel to the length direction of the base plate 1 . The supporting plate 4 is fixed by screws, and when the amount of wear of the supporting plate 4 is too large due to repeated clamping, it can be conveniently replaced in time.

As shown in Figures 1 and 2, the positioning mechanism includes two positioning pins arranged on the base plate 1, wherein the positioning portion of one positioning pin is cylindrical, that is, a circular positioning pin 3, and the positioning portion of the other positioning pin is Rhombus is the rhombus positioning pin 5. As shown in FIG. 2 , the two positioning pins are located on the inner sides of the two supporting plates 4 , and positioning holes matching the two positioning pins are selected on the hub. Wherein, the circular positioning pin 3 is located at the end side of one of the supporting plates 4 , and the diamond-shaped positioning pin 5 is located at the end side of the other supporting plate 4 , and is arranged in a staggered manner with the circular positioning pin 3 . Locating pins are arranged on the bottom plate 1 to ensure more accurate and reliable positioning when the hub is clamped. Nylon positioning pads are also installed on the two positioning pins to protect the hub from unnecessary scratches, and the positioning pads can be replaced in time when excessive deformation occurs in multiple clamping.

As shown in Figure 1 and Figure 2, the backing plate 2 equal to the number of the pressing mechanism is provided on the base plate 1, the thickness of the backing plate 2 is greater than the thickness of the supporting plate 4, and the hydraulic cylinders 6 of each pressing mechanism are vertical respectively. Mounted on top of a backing plate 2.

Preferably, the backing plate 2 is fixed on the bottom plate 1 by two screws, and the backing plate 2 can be easily replaced in time when the amount of wear of the backing plate 2 is too large due to repeated clamping.

In this embodiment, there are three pressing mechanisms in total, and the three pressing mechanisms are arranged in a triangle. As shown in Figure 2, among the three pressing mechanisms, the first pressing mechanism is located between the two supporting plates 4, and the pressing plate 9 of the pressing mechanism is parallel to the two supporting plates 4, facing the two supporting plates. The upper space between 4 extends; the second pressing mechanism is located at one end of one of the pallets 4, on the same straight line as the pallet 4, and the side of the other end of the pallet 4 is provided with a circular positioning pin 3 , the pressing plate 9 of the pressing mechanism is parallel to the supporting plate 4;

The fixture with the above structure adopts automatic hydraulic cylinder 6 clamping instead of manual operation of workers on the basis of setting long strips, so that workers are freed, which can save the time and energy of workers' operation, and can also improve clamping efficiency.

As shown in Figure 1 and Figure 2, in order to facilitate the reliable installation of the entire fixture in the machine tool, a round hole is machined at both ends of the bottom plate 1 of the fixture, so that the device can be fixed on the machine tool by traditional methods, and installed in the hole Bushing 7, bushing 7 can be replaced in time when the amount of wear is too large.

As shown in Figures 1 and 3, the bushing 7 has a ring-shaped structure, and the bushing 7 is embedded in the through hole provided on the bottom plate 1. In order to ensure that the bushing 7 is reliably fixed, between the bushing 7 and the inner wall of the through hole A pin 10 can also be inlaid, and the pin 10 makes the bushing 7 and the through hole tightly fit, which can prevent the bushing 7 from slipping off.

The present invention has been exemplarily described above with reference to the accompanying drawings. Apparently, the specific implementation of the present invention is not limited by the above methods. As long as various insubstantial improvements are made using the method concept and technical solution of the present invention; or without improvement, the above-mentioned concept and technical solution of the present invention are directly applied to other occasions, all within the protection scope of the present invention within.

Claims (9)

1. A fixture for the drilling of automobile wheel hubs, characterized in that: it comprises a base plate, the base plate is provided with a plurality of supporting plates parallel to each other, a pressing mechanism for compressing the automobile wheel hub on the supporting plates and a clamping mechanism for The positioning mechanism for the positioning of the automobile wheel hub, the top surface of the supporting plate is a positioning plane, and the pressing mechanism includes a vertically arranged hydraulic cylinder, a pressing plate connected with the piston rod of the hydraulic cylinder and a nylon pressure head located at the pressing end of the pressing plate. 2 . The jig for drilling automobile wheel hubs according to claim 1 , wherein the supporting plate is in the shape of a long strip. 3 . 3 . The jig for drilling a hub of an automobile according to claim 1 or 2 , wherein there are two supporting plates, and the two supporting plates are parallel to each other. 4 . 4. The jig according to claim 3, characterized in that: the positioning mechanism includes two positioning pins arranged on the bottom plate, one of which is a circular positioning pin and the other is a rhombus Locating pins, two locating pins are located between the two supporting plates, and a locating hole suitable for the two locating pins is selected on the hub. 5. The jig for drilling automobile wheel hubs according to claim 4, wherein the circular positioning pin is located on one side of the end of one of the supporting plates, and the diamond-shaped positioning pin is located on the other side of the supporting plate. One side of the end of the supporting plate, and arranged in a staggered manner with the circular positioning pins. 6 . The jig according to claim 5 , wherein a backing plate is provided on the bottom plate, and the hydraulic cylinder is fixed on the backing plate. 7 . 7 . The jig for drilling automobile wheel hubs according to claim 6 , wherein there are three pressing mechanisms in total, and the three pressing mechanisms are arranged in a triangle. 7 . 8. The jig according to claim 7, characterized in that: among the three pressing mechanisms, the first pressing mechanism is located between the two supporting plates, and the second pressing mechanism is located between the two supporting plates. The pressing mechanism is located at one end of one supporting plate, and the third pressing mechanism is located at the middle side of the other supporting plate. 9 . The jig for drilling a wheel hub of an automobile according to claim 8 , wherein the thickness of the backing plate is greater than that of the supporting plate. 10 .