Machine manufacturing cutting clamp

Abstract

The utility model relates to and discloses a mechanical manufacturing cutting clamp which comprises a thin-wall curved surface workpiece and a clamping base, the thin-wall curved surface workpiece is arranged above the clamping base, a plurality of clamping bottom columns are densely arranged on the clamping base and installed on the clamping base in a lifting mode, elastic bodies are arranged on the peripheries of the clamping bottom columns, and the elastic bodies are arranged on the clamping base. The top ends of the multiple clamping bottom columns are mounted on the lower side end face of the thin-wall curved-surface workpiece in an attached mode through elastic pushing of the multiple elastic bodies; according to the cutting clamp for mechanical manufacturing, through the multiple clamping bottom columns installed in a lifting mode, the multiple springs and the multiple rubber suction nozzles, corresponding displacement and deformation can be generated according to the shape and size of a supported thin-wall curved-surface workpiece, and therefore thin-wall curved-surface workpieces of different sizes and shapes can be clamped and installed through the cutting clamp for mechanical manufacturing.

Description

Technical Field

[0001] The utility model relates to the technical field of curved surface thin-wall workpiece processing, in particular to a mechanical manufacturing cutting fixture. Background Art

[0002] As we all know, during the cutting process of mechanical workpieces, the clamping force of the mechanical workpiece needs to be strictly controlled to ensure that the clamped workpiece does not slide or deform, and to prevent damage caused by the fixture being thrown out or over-clamping; especially the free-form surface thin-walled workpieces in mechanical workpieces, which are not only irregular in shape but also thin, and are easily squeezed and deformed during the cutting process. Therefore, the fixture for free-form surface thin-walled workpieces is generally composed of a clamping seat with magnetic or negative pressure attraction function, and the clamping seat and the free-form surface thin wall are fitted with each other, and the free-form surface thin wall is fitted and installed on the clamping seat by magnetic force or suction.

[0003] However, the clamping seat has a fixed size and can only clamp and support free-form thin-walled workpieces of the same size and shape, but cannot clamp free-form thin-walled workpieces of different shapes and sizes. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the clamping seat in the free-form surface thin-walled workpiece fixture in the prior art is fixed in size and can only clamp and support free-form surface thin-walled workpieces of the same size and shape, and to propose a mechanical manufacturing cutting fixture.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0006] A mechanical manufacturing cutting fixture includes a thin-walled curved workpiece and a clamping seat, wherein the thin-walled curved workpiece is arranged above the clamping seat, and a plurality of clamping bottom columns are densely arranged on the clamping seat, and the clamping bottom columns are lifted and installed on the clamping seat, and the peripheries of the plurality of clamping bottom columns are provided with elastic bodies. The present application is used to fit the top ends of the plurality of clamping bottom columns onto the lower end surface of the thin-walled curved workpiece through the elastic force of the plurality of elastic bodies.

[0007] Preferably, a limit ring and a limit column are fixedly mounted on the upper and lower ends of the clamping base column respectively, and the elastic body is composed of a spring, and the upper and lower ends of the spring are squeezed and mounted between the limit ring and the clamping seat.

[0008] Preferably, a rubber suction nozzle is fixedly mounted on the upper end of the clamping base column, and the rubber suction nozzle is in the shape of a bellows.

[0009] Preferably, a brake frame is provided below the clamping seat, and a plurality of brake rods are fixedly installed in the brake frame, and the plurality of brake rods are correspondingly installed on one side of the plurality of clamping base columns.

[0010] Preferably, a double-rod push cylinder is provided on one side of the brake frame, and the push rod ends of the double-rod push cylinder are fixedly connected to the brake frame.

[0011] Preferably, a plurality of guide rods are provided below the brake frame, both ends of the guide rods are fixedly mounted below the clamping seat, and the brake frame is slidably mounted above the guide rods.

[0012] Compared with the prior art, the present invention provides a mechanical manufacturing cutting fixture with the following features:

[0013] Beneficial effects:

[0014] This mechanical manufacturing cutting fixture, through several lifting clamping base columns and several springs, combined with several rubber suction nozzles, can undergo corresponding displacement and deformation according to the shape and size of the supported thin-walled curved workpiece, so that this application can clamp and install thin-walled curved workpieces of different sizes and shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of a mechanical manufacturing cutting fixture proposed in this utility model Figure 1 ;

[0016] Figure 2 This is a schematic diagram of a mechanical manufacturing cutting fixture proposed in this utility model Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the structure of a clamping base column in a mechanical manufacturing cutting fixture proposed by the present invention;

[0018] Figure 4 The utility model is a cross-sectional view of a rubber suction nozzle in a mechanical manufacturing cutting fixture.

[0019] In the figure: 1. Thin-walled curved workpiece; 2. Clamping seat; 3. Clamping bottom column; 4. Rubber suction nozzle; 5. Limiting ring; 6. Spring; 7. Double-rod push cylinder; 8. Guide rod; 9. Brake frame; 10. Brake rod; 11. Limiting column. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] Refer to the attached Figure 1-4 A mechanical manufacturing cutting fixture includes a thin-walled curved workpiece 1, the upper and lower ends of the thin-walled curved workpiece 1 are curved, a clamping seat 2 is provided below the thin-walled curved workpiece 1, the clamping seat 2 is provided with a plurality of clamping bottom columns 3, the plurality of clamping bottom columns 3 are densely arranged in a matrix and vertically lifted and installed in the guide holes in the clamping seat 2, the lower end of the clamping bottom column 3 is threadedly connected to the limiting column 11, the limiting column 11 limits the lower end of the clamping bottom column 3 to pass through the guide hole upward, and a rubber suction nozzle 4 is fixedly installed on the top of the clamping seat 2.

[0023] It should be added that an air duct is provided on the central axis of the clamping bottom column 3, and the lower ends of the air ducts in several clamping bottom columns 3 are fixedly connected to a vacuum pump through several conduits, that is, through the vacuum pump and the air ducts in several clamping bottom columns 3, negative pressure is used to attract the thin-walled curved workpiece 1, and the lower end of the rubber suction nozzle 4 is sealed and connected to the top of the air duct. The rubber suction nozzle 4 is made of rubber with good elastic deformation function and is in the shape of a bellows. It can undergo certain deformation and displacement according to the outer wall of the thin-walled curved workpiece 1 in contact with the clamping contact, and is used to have a good match between the clamped thin-walled curved workpiece 1 and the top ends of several clamping bottom columns 3, so that the outer wall of the thin-walled curved workpiece 1 and the upper end opening of the rubber suction nozzle 4 can be sealed and connected, and the recoverable deformation of the rubber suction nozzle 4 can be used to automatically reset when the upper end of the rubber suction nozzle 4 is not under force, and the upper end opening of the rubber suction nozzle 4 is vertically facing upward, and the upper end opening of the rubber suction nozzle 4 is in the shape of a trumpet.

[0024] In this embodiment, a limiting ring 5 is fixedly installed on the outer periphery of the upper end of the clamping bottom column 3, and an elastomer is provided on the outer periphery of several clamping bottom columns 3. The elastomer is specifically composed of a spring 6. A spring 6 is provided at the lower end of the limiting ring 5. The two ends of the spring 6 are compressed and installed between the clamping seat 2 and the limiting ring 5. The inner ring of the spring 6 is sleeved on the outer periphery of the clamping bottom column 3. The spring 6 in this application is always in a compressed state, that is, the spring 6 always has the elastic force to push the limiting ring 5 and the clamping bottom column 3 upward, which is used to ensure that the top end of the clamping bottom column 3 can support the clamping bottom column 3 through the rubber suction nozzle 4.

[0025] In this embodiment, a brake frame 9 parallel to each other is provided below the clamping seat 2, and two guide rods 8 parallel to each other are provided below the brake frame 9. The two ends of the guide rod 8 are fixedly installed on the lower end of the clamping seat 2, and the lower end of the brake frame 9 is slidably installed on the two guide rods 8. A plurality of brake rods 10 are fixedly installed in the inner frame of the brake frame 9, and the plurality of brake rods 10 are respectively provided on one side of a plurality of clamping base columns 3. A double-rod push cylinder 7 is provided on one side of the brake frame 9, and the double-rod push cylinder 7 is fixedly installed below the clamping seat 2. The push rod end in the double-rod push cylinder 7 is fixedly connected to the brake frame 9.

[0026] In the present invention, before mechanically cutting a thin-walled curved surface workpiece 1, the process of clamping the thin-walled curved surface workpiece 1 is as follows:

[0027] 1) First, by contracting the piston rod in the double-rod push cylinder 7, the brake frame 9 and the plurality of brake rods 10 are pulled away from the plurality of clamping bottom columns 3 at the same time, thereby releasing the lifting and lowering restrictions of the brake frame 9 and the plurality of brake rods 10 on the plurality of clamping bottom columns 3, that is, the plurality of clamping bottom columns 3 can be lifted and lowered along the plurality of guide holes in the clamping seat 2, and the compression elastic force of the plurality of springs 6 pushes the plurality of clamping bottom columns 3 vertically upward until the limiting columns 11 at the lower ends of the plurality of clamping bottom columns 3 are limited against the lower end of the clamping seat 2, and the rubber suction nozzle 4 will also automatically reset itself through its own recoverable deformation in a stress-free state, so that the upper end opening of the rubber suction nozzle 4 is vertically facing upward;

[0028] When the workpiece 1 is pressed down, the top of the plurality of clamping posts 3 can be pressed down, and the plurality of springs 6 can be used to push the clamping posts 3 up, so that the top ends of the plurality of clamping posts 3 are densely fitted and supported on the lower end surface of the thin-walled curved workpiece 1. Secondly, the upper end opening of the rubber suction nozzle 4 can be pressed down, and the upper end opening of the rubber suction nozzle 4 can be fitted and installed on the lower end surface of the thin-walled curved workpiece 1, and the outer wall of the thin-walled curved workpiece 1 and the upper end opening of the rubber suction nozzle 4 are sealed and connected, thereby ensuring that the rubber suction nozzle 4 has sufficient negative pressure clamping force. As can be seen from the above, a plurality of clamping posts 3 cooperate with a plurality of rubber suction nozzles 4 to produce corresponding displacement and deformation according to the shape and size of the supported thin-walled curved workpiece 1, that is, the present application can clamp and install thin-walled curved workpieces 1 of different sizes and shapes;

[0029] 3) A vacuum pump and air passages in the plurality of clamping bottom columns 3 are used to apply negative pressure at multiple points to the lower end surface of the thin-walled curved workpiece 1, and the thin-walled curved workpiece and the plurality of rubber suction nozzles 4 are squeezed and installed on the top ends of the plurality of clamping bottom columns 3;

[0030] 4) Finally, the piston rod in the double-rod push cylinder 7 is extended outward to push the brake frame 9 and several brake rods 10 along the two guide rods 8 and simultaneously approach the several clamping bottom columns 3, and the several clamping bottom columns 3 are fixedly clamped and installed on the clamping seat 2. The thin-walled curved workpiece 1 is stably clamped and installed above the clamping seat 2 by the several clamping bottom columns 3 to ensure that the thin-walled curved workpiece 1 will not slide or deform during the cutting process.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mechanical manufacturing cutting fixture, comprising a thin-walled curved surface workpiece (1) and a clamping seat (2), wherein the thin-walled curved surface workpiece (1) is arranged above the clamping seat (2), and is characterized in that: A plurality of clamping bottom columns (3) are densely arranged on the clamping seat (2), and the clamping bottom columns (3) are installed on the clamping seat (2) in a lifting manner. The peripheries of the plurality of clamping bottom columns (3) are provided with elastic bodies. The present application is used to fit the top ends of the plurality of clamping bottom columns (3) onto the lower end surface of the thin-walled curved workpiece (1) by pushing them with the elastic force of the plurality of elastic bodies.

2. A mechanical manufacturing cutting fixture according to claim 1, characterized in that: The upper and lower ends of the clamping base column (3) are respectively fixedly mounted with a limit ring (5) and a limit column (11); the elastic body is composed of a spring (6); the upper and lower ends of the spring (6) are squeezed and mounted between the limit ring (5) and the clamping seat (2).

3. A mechanical manufacturing cutting fixture according to claim 1, characterized in that: A rubber suction nozzle (4) is fixedly mounted on the upper end of the clamping bottom column (3), and the rubber suction nozzle (4) is in the shape of a bellows.

4. A mechanical manufacturing cutting fixture according to claim 1, characterized in that: A brake frame (9) is provided below the clamping seat (2), and a plurality of brake rods (10) are fixedly installed in the brake frame (9). The plurality of brake rods (10) are correspondingly installed on one side of the plurality of clamping base columns (3).

5. A mechanical manufacturing cutting fixture according to claim 4, characterized in that: A double-rod push cylinder (7) is provided on one side of the brake frame (9), and the push rod ends of the double-rod push cylinder (7) are fixedly connected to the brake frame (9).

6. A mechanical manufacturing cutting fixture according to claim 5, characterized in that: A plurality of guide rods (8) are provided below the brake frame (9), and both ends of the guide rods (8) are fixedly mounted below the clamping seat (2), and the brake frame (9) is slidably mounted above the guide rods (8).

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