CN109514461B - Multi-point elastic compression device for uneven surfaces - Google Patents

Abstract

The invention provides a multi-point elastic pressing device for uneven surfaces, which solves the problem that the existing multi-point pressing device compresses workpieces with uneven surfaces that may occur after the high points of the workpiece are pressed. The low point cannot be pressed, which leads to technical problems such as reduced processing accuracy. It is provided with a base plate, a positioning block is provided on the base plate, a center hole is provided on the base plate, a guide column is provided in the center hole, a pressing plate is provided on the guide column, the outer circle of the guide column is cylindrical, and the cylindrical outer circle is provided with a There is a guide surface, and the pressing plate is provided with an inner hole that matches the cylindrical surface of the guide column. The bottom of the pressing plate is provided with a groove, and a guide plate is installed in the groove. The pressing plate is provided with a pressing rod, and the lower end of the pressing rod is A spring is provided, a locking nut is provided at the upper end of the compression rod, a compression nut is provided at the upper end of the guide column, and a spacer is provided between the compression nut and the compression plate. The invention can be widely used in precise pressing devices for various workpieces.

Description

Multi-point elastic compression device for uneven surfaces

Technical field

The present invention relates to a multi-point pressing device, in particular to a multi-point elastic pressing device for uneven surfaces.

Background technique

During the processing of parts, reliable clamping is required, but the multi-point clamping devices commonly used are mostly rigid devices. For workpieces with uneven surfaces, there is a risk that the workpiece will be compressed after high points are pressed during use. If the low point cannot be pressed, it is easy to cause the workpiece to loosen, resulting in a decrease in machining accuracy.

Contents of the invention

The present invention aims at the technical problem that when the existing multi-point pressing device presses a workpiece with uneven surfaces, the low points of the workpiece cannot be pressed after pressing the high points of the workpiece, resulting in a decrease in processing accuracy, and provides a manufacturing method. It is a multi-point elastic compression device that is simple, easy to use and reliable, and can ensure compression at both high and low points. It is used for uneven surfaces.

To this end, the technical solution of the present invention is a multi-point elastic pressing device for uneven surfaces, which is provided with a base plate, a positioning block is provided on the base plate, a center hole is provided on the base plate, and a guide column is provided in the center hole. , the guide column and the bottom plate are detachably fixedly connected, the guide column is provided with a pressing plate, the outer circle of the guide column is cylindrical, and the cylindrical outer circle is provided with a guide surface, and the pressing plate is provided with a cylindrical surface that matches the guide column In the inner hole of the pressure plate, there is a groove at the bottom of the pressure plate. A guide plate is detachably and fixedly installed in the groove. The guide plate matches the guide surface. There is a pressure rod on the pressure plate. The position of the pressure rod is consistent with the positioning block. Corresponding to the position, there is a spring at the lower end of the compression rod, a locking nut at the upper end of the compression rod, a compression nut at the upper end of the guide column, and a spacer between the compression nut and the compression plate.

Preferably, the bottom plate and the positioning block are detachably fixed and installed.

Preferably, the guide column and the bottom plate are connected with screws.

Preferably, the guide plate and the compression plate are connected with countersunk head screws.

Preferably, the cushion block adopts an open cushion block.

Preferably, the opening pad is provided with a U-shaped groove.

Preferably, the pressing plate adopts a triangular shape, and there are three pressing rods and three positioning blocks on the pressing plate.

Preferably, one end of the spring installed on the compression rod is provided with a workpiece pressing surface, and the workpiece pressing surface is hemispherical.

The beneficial effects of the present invention are as follows:

(1) Since there is a compression rod and a spring at the lower end of the compression rod, the position of the compression rod corresponds to the positioning block. After placing the workpiece on the positioning block, install the compression plate on the guide column and adjust the compression Nuts can be used to compress the workpiece at multiple points. When the surface of the workpiece is uneven, the workpiece can also be pressed reliably;

(2) Since there is a guide column and a guide surface on the guide column, the guide surface cooperates with the guide plate to limit the position of the pressing plate, so that the pressing rod is always aligned with the positioning block, further ensuring the effective pressing of the workpiece. tight;

(3) There is a groove at the bottom of the compression plate, and a guide plate is detachably and fixedly installed in the groove, so that the compression plate can be disassembled and assembled on the guide column without removing the compression nut;

(4) Since the opening spacer has a U-shaped groove, it can be installed from the side between the compression plate and the guide column without removing the compression nut.

Description of drawings

Figure 1 is a cross-sectional view of the device when pressing the workpiece;

Figure 2 is a top view of the device;

Figure 3 is a front cross-sectional view of the assembly of the pressing plate and the guide plate;

Figure 4 is a top view of the assembly of the pressing plate and the guide plate;

Figure 5 is a schematic diagram of the guide column;

Figure 6 is a schematic diagram of the pad.

Explanation of symbols in the figure:

1. Bottom plate; 2. Screws; 3. Positioning block; 4. Spring; 5. Locking nut; 6. Compression rod; 7. Compression plate; 8. Compression nut; 9. Guide column; 10. Opening pad block; 11. Countersunk head screws; 12. Guide plate; 13. Workpiece pressing surface; 14. Guide surface.

Detailed ways

The present invention will be further described below in conjunction with examples.

As shown in the accompanying drawings, a multi-point elastic compression device for uneven surfaces is provided with a base plate 1. The base plate 1 is provided with positioning blocks 3. There are three positioning blocks 3. The base plate 1 and the positioning blocks 3 use screws. 2 installation, easy to disassemble and assemble. The base plate 1 is provided with a center hole, and a guide column 9 is provided in the center hole. The guide column 9 is connected to the base plate 1 with screws. The guide column 9 is provided with a pressing plate 7. The outer circle of the guide column 9 is cylindrical. The circle is provided with a guide surface 14, and the pressure plate 7 is provided with an inner hole that matches the cylindrical surface of the guide column 9. The bottom of the pressure plate 7 is provided with a groove, and the guide plate 12 is installed with a countersunk screw 11 in the groove. 12 cooperates with the guide surface 14 to realize that when the pressing plate 7 moves up and down, the orientation of the pressing plate 7 relative to the positioning block 3 remains unchanged. The pressing plate 7 is provided with a pressing rod 6, and the position of the pressing rod 6 is consistent with that of the positioning block 3. Corresponding to the position of the positioning block 3, the lower end of the pressing rod 6 is the workpiece pressing surface 13. The lower end of the pressing rod 6 is provided with a spring 4 on the workpiece pressing surface 13. The upper end of the pressing rod 6 is provided with a locking nut 5. By adjusting the lock The tightening nut 5 can adjust the compression amount of the spring 4. The upper end of the guide column 9 is provided with a compression nut 8, which can adjust the relative position of the compression plate 7 and the positioning block 3 to facilitate clamping of the workpiece. An opening pad 10 is provided between the compression nut 8 and the compression plate 7. The opening pad 10 has a U-shaped groove. The opening pad 10 can be disassembled and assembled without disassembling the compression nut 8.

The pressing plate 7 can be a triangle with three pressing rods 6 arranged on it. The shape of the pressing plate 7 and the number of the pressing rods 6 can also be changed according to the shape of the workpiece to meet the need for compressing concave and convex points. One end of the pressing rod 6 installed with the spring 4 is provided with a workpiece pressing surface 13. The workpiece pressing surface 13 is hemispherical to ensure reliable contact between the pressing surface and the workpiece.

When it is necessary to compress the workpiece, first place the workpiece on the positioning block 3, then lower the compression plate 7 equipped with the compression rod 6, spring 4, lock nut 5 and guide plate 12, and align the guide plate 12 The guide surface 14 of the guide column 9 is placed on the guide column 9 until the pressing rod 6 contacts the high point of the pressed workpiece and stops. Then place the opening pad 10 between the compression nut 8 and the compression plate 7, tighten the compression nut 8 so that the opening pad 10 presses the compression plate 7 downward, the compression plate 7 compresses the spring 4 downward, and the spring 4 deform until all three pressing rods 4 press the workpiece.

Through the above device, reliable clamping of workpieces with uneven surfaces can be achieved, and according to the different shapes of the workpieces, the number and shape of the positioning blocks and pressing plates can be quickly and easily changed, which has high versatility and reduces manufacturing costs.

However, the above are only specific embodiments of the present invention, and should not be used to limit the scope of the present invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made in accordance with the patent protection scope of the present invention, should be It still falls within the scope of the claims of the present invention.

Claims (4)

1. The utility model provides a multiple spot elastic compression device for unsmooth plane, its characterized in that is equipped with the bottom plate, be equipped with the locating piece on the bottom plate, be equipped with the centre bore on the bottom plate, be equipped with the guide post in the centre bore, the guide post with the bottom plate is detachable fixed connection, be equipped with the gland plate on the guide post, the guide post excircle is cylindrical, be equipped with the guide face on the cylindrical excircle, the gland plate be equipped with guide post face complex hole, the gland plate bottom is equipped with the recess, detachable fixed mounting has the deflector in the recess, the deflector with the guide face cooperation, be equipped with the clamp lever on the gland plate, the position of clamp lever corresponds with the position of locating piece, the clamp lever lower extreme is equipped with the spring, the clamp lever upper end is equipped with lock nut, the guide post upper end is equipped with the gland nut, be equipped with between gland plate and the cushion; the bottom plate and the positioning block are detachably and fixedly installed; the cushion block adopts an opening cushion block, and a U-shaped groove is formed in the opening cushion block; one end of the pressing rod mounting spring is provided with a workpiece pressing surface, and the workpiece pressing surface is hemispherical.

2. The multipoint elastic pressing apparatus according to claim 1, wherein the guide posts are screw-coupled to the base plate.

3. The multipoint elastic pressing apparatus according to claim 1, wherein the guide plate is connected with the pressing plate by a countersunk screw.

4. The multipoint elastic pressing device for the concave-convex surface according to claim 1, wherein the pressing plate is triangular, three pressing rods are arranged on the pressing plate, and the number of the positioning blocks is three.