CN204935203U - A kind of processing unit (plant) of high-precision rotary class thin-walled parts supporting disk - Google Patents

Abstract

The utility model relates to a processing device for a support disc of a high-precision rotary thin-walled part, which solves the problem that the part is deformed under the action of a radial clamping force during the precision machining of the support disc of a high-precision rotary thin-walled part and the processed part The problem of changing dimensions. Including body, eccentric wheel, cylindrical locating pin, diamond-shaped locating pin, bolt and slider, the body has a locating joint surface that matches the joint surface of the processed part, and a cylindrical positioning pin that cooperates with the positioning pin hole of the processed part 1 And diamond-shaped positioning pins are installed on the body, and the rotating eccentric wheel that can closely contact and press the workpiece 1 in the circumferential direction is also installed on the body. In addition, the body is also installed with bolts that can match the bolt holes in the circumference of the processed part. . The diamond-shaped positioning pin is installed on the slide block, and the slide block is installed on the body, and the diamond-shaped positioning pin can move radially on the slide block. The utility model not only effectively reduces the clamping deformation of parts in the processing process, but also improves the processing efficiency.

Description

A processing device for supporting discs of high-precision rotary thin-walled parts

technical field

The utility model relates to a processing device for a support plate of a high-precision rotary thin-walled part, which belongs to the field of mechanical processing.

Background technique

The support disc of high-precision rotary thin-walled parts is an important part of the brake. It cooperates with the rotating marble disc to realize the braking of the brake. Its precision directly affects the braking performance of the brake and the whole vehicle. The support plate is a high-precision rotary thin-walled part with high precision requirements. Usually, one is to use three-jaw jaws for positioning and clamping, so that the parts are clamped and deformed under the action of radial clamping force; the other is to position and clamp the parts with fan-shaped jaws, although the impact of clamping deformation on the precision A certain degree of control has been obtained, but it is still far from the manufacturing accuracy required by the drawings. In addition, due to the influence of asymmetric milling during processing, the stress release after finishing will cause the inner hole of the support plate to become elliptical, making the processing difficult; there are many factors affecting the accuracy of the part, it is extremely difficult to ensure the drawing requirements, and the production efficiency is low. Low and high rework rate and scrap rate. The positioning and clamping device of the current processing method has the defects that the workpiece is deformed after clamping, and the size of the processed part changes after processing.

Contents of the invention

The utility model provides a turning processing device capable of changing the existing clamping method, which solves the problem of the deformation of the parts under the action of the radial clamping force during the precision machining of the support plate of the high-precision rotary thin-walled parts and the processing position after processing. The problem of changing dimensions.

The utility model is realized by the following technical solutions:

A processing device for supporting discs of high-precision rotary thin-walled parts, including a body, an eccentric wheel, a cylindrical positioning pin, a diamond-shaped positioning pin, bolts, and a slider. The body has a positioning joint surface that matches the joint surface of the processed part The cylindrical positioning pin and the diamond-shaped positioning pin matched with the positioning pin hole of the processed part 1 are installed on the body, and the rotating eccentric wheel that can be tightly contacted and pressed in the circumferential direction of the processed part 1 is also installed on the body. In addition, the body Bolts that can fit with the peripheral bolt holes of the machined parts are also installed.

The diamond-shaped positioning pin is installed on the slide block, and the slide block is installed on the body, and the diamond-shaped positioning pin can move radially on the slide block. .

The technical scheme of the utility model is that the device adopts the positioning method of two pins on one side, and changes the original radial clamping to the design scheme of pressing the parts on the end face (that is, positioning with the end face of the part and tightening and fixing with bolts). Before fixing with bolts, first use a cylindrical positioning pin to insert into a pin hole of the support plate part, then slide the diamond-shaped positioning pin installed on the slider to a suitable position and insert it into another positioning pin hole of the support plate part to achieve radial The positioning in the circumferential direction and the clamping process are completed at one time. The diamond-shaped positioning pin installed on the slider can not only realize the precise positioning of the product parts, but also effectively solve the problem of interference positioning caused by the error of the positioning hole distance of the product parts, and can effectively reduce the parts in the processing process. The clamping deformation in the middle improves the processing efficiency.

Description of drawings

Figures 1a, b, and c are the left, main, and right views of the processed parts, respectively;

Fig. 2 a, b, c are the left side, main, right view of the utility model respectively;

Figure 3a, b, c are the left, front and right views of the combination of the processing device and the support plate, respectively.

detailed description:

As shown in Figure 1-3, the utility model is a processing device for high-precision rotary thin-walled parts support plate, including a body, an eccentric wheel 3, a cylindrical positioning pin 4, a diamond-shaped positioning pin 6, a bolt 5 and a slider 7 , the body has a positioning joint surface 2 that matches the joint surface of the processed part 1, and the cylindrical positioning pin 4 and the rhombic positioning pin 6 that cooperate with the positioning pin hole of the processed part 1 are installed on the body, and the processed parts can be 1. The rotating eccentric wheel 3 which is tightly contacted and pressed in the circumferential direction is also mounted on the body. In addition, the body is also equipped with bolts 5 which can cooperate with the bolt holes in the 1st circle of the machined part. The rhombic positioning pin 6 is installed on the slide block 7, and the slide block 7 is installed on the body, and the rhombic positioning pin 6 can move radially on the slide block 7.

As shown in Figure 1, it is a schematic diagram of the workpiece 1 to be processed, and the pin holes A and B are used for positioning. Figure 2 is a schematic view of the processing device for supporting the disc. First, the device positioning joint surface 2 is used to cooperate with the joint surface of the processed part 1, and the cylindrical positioning pin 4 is firstly positioned with the pin hole A on the processed part 1, and then the sliding block 7 drives the diamond-shaped positioning pin 6 to be positioned in the processing Pin hole B on part 1. Secondly, use 12-M8-6H bolt 5 to penetrate the corresponding threaded hole on the joint surface of fixture positioning surface 2 and part 1, and then tighten and fix it, and then pull out the positioning cylinder positioning pin 4 and the diamond-shaped positioning pin 6. Finally, the eccentric wheel 3 is rotated to realize tight contact and compression of the parts in the circumferential direction to prevent the parts from vibrating.

Rotating the eccentric wheel 3 realizes the tight contact and pressing of the parts in the circumferential direction, prevents the parts from vibrating, not only effectively reduces the clamping deformation of the parts during processing, but also improves the processing efficiency. In addition, during the tightening and fixing process of the parts, each fixing 12-M8-6H bolt 5 is tightened by alternating and uniform force application, so as to reduce the influence of uneven force on the quality of the parts as much as possible.

The utility model not only effectively reduces the clamping deformation of parts in the processing process, but also improves the processing efficiency.

Claims (2)

1. A processing device for supporting plates of high-precision rotary thin-walled parts, which is characterized in that: it includes a body, an eccentric wheel, a cylindrical positioning pin, a diamond-shaped positioning pin, bolts and a slider, and the body has a combination with the processed part. The positioning joint surface matched with the surface, the cylindrical positioning pin and the rhombic positioning pin matching the positioning pin hole of the processed part are installed on the body, and the rotating eccentric wheel that can be tightly contacted and pressed in the circumferential direction of the processed part is also mounted on the body. In addition, the body is also equipped with bolts that can be matched with the bolt holes in the periphery of the machined parts. 2. A processing device for supporting plates of high-precision rotary thin-walled parts according to claim 1, characterized in that: the diamond-shaped positioning pin is installed on the slider, and the slider is installed on the body, and the diamond-shaped positioning pin can be mounted on the slide Move radially on the block.