Clamp for numerical control machine tool machining

Abstract

The utility model relates to the technical field of clamps, in particular to a clamp for numerical control machine tool machining. According to the technical scheme, the device comprises a shell, communicating cavities are symmetrically formed in the two sides of the interior of the shell, a first connecting pipe and a second connecting pipe are fixedly connected to the positions, located above the two communicating cavities, of the upper surface of the shell correspondingly, and a plurality of communicating sliding grooves are formed in the position, located between the two communicating cavities, of the interior of the shell at equal intervals; and piston sliding blocks are installed in the communicating sliding grooves in a sliding mode, the side, close to the second connecting pipe, of the outer surface of each piston sliding block is fixedly connected with a connecting rod, the tail end of each connecting rod is fixedly connected with a clamping fixing block, and the clamping fixing blocks are located outside the shell. When being used for clamping and fixing parts machined by the numerical control machine tool, the clamping device can be suitable for the parts with flat outer surfaces and the parts with uneven outer surfaces, so that the applicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamp for numerical control machine tool processing. Background Art

[0002] A CNC machine tool is an automated machine tool equipped with a program control system that can operate and process parts according to a pre-programmed program. During the part processing process, a fixture is required to fix and clamp the parts.

[0003] At present, when fixing and clamping parts processed by CNC machine tools, the existing flat clamps cannot clamp and fix the parts well due to the uneven outer surfaces of some parts. Therefore, we propose a clamp for CNC machine tool processing. Utility Model Content

[0004] The utility model aims to provide a fixture for CNC machine tool processing, which has the advantage of being applicable to both parts with smooth outer surfaces and parts with uneven outer surfaces when clamping and fixing parts processed by CNC machine tools, thereby improving the applicability and solving the problem that when fixing and clamping parts processed by CNC machine tools, the existing flat fixtures cannot well clamp and fix the parts due to the uneven outer surfaces of some parts.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixture for CNC machine tool processing, comprising an outer shell, connecting chambers are symmetrically arranged at both sides of the inner shell, a first connecting tube and a second connecting tube are fixedly connected to the upper surface of the outer shell above the two connecting chambers, a plurality of connecting slide grooves are equidistantly arranged between the two connecting chambers in the inner shell, piston sliders are slidingly installed in the connecting slide grooves, a connecting rod is fixedly connected to the outer surface of each piston slider on one side close to the second connecting tube, a clamping block is fixedly connected to the end of each connecting rod, and the clamping block is located outside the outer shell.

[0006] Preferably, a fixing plate is fixedly installed on one side of the outer surface of the shell close to the second connecting tube, and the connecting rod passes through the fixing plate. An opening is provided on one side of the outer surface of the shell close to the fixing plate for disassembly and maintenance of the piston slider. The fixing plate and the shell are fixedly connected by screws.

[0007] Preferably, a sealing plate is fixedly installed on the inner side of the fixing plate, and the connecting rod passes through the sealing plate, so that the sealing plate seals the gap between the fixing plate and the shell and between the connecting rod and the fixing plate.

[0008] Preferably, an annular groove is provided on the outer surface of each piston slider, and a sealing ring is provided inside each annular groove.

[0009] Preferably, a groove is provided on the outside of each clamping block, and a rubber block is fixedly installed inside each groove, so as to avoid direct contact between the clamping block and the parts. Since the rubber block is soft in texture, it can avoid damage to the surface of the parts.

[0010] Preferably, a triangular fixing frame is fixedly mounted on the front surface and the rear surface of the shell, and a mounting hole is provided on the upper surface of each triangular fixing frame, and bolts pass through the mounting holes to fix the shell to the CNC machine tool.

[0011] Preferably, the ends of the first connecting pipe and the second connecting pipe are fixedly connected with quick connectors, and the external high-pressure air pipe or high-pressure oil pipe is connected to the first connecting pipe or the second connecting pipe through the two quick connectors.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model achieves the effect of being applicable to both parts with smooth outer surfaces and parts with uneven outer surfaces when clamping and fixing parts processed by CNC machine tools by arranging a shell, a connecting chamber, a first connecting pipe and a second connecting pipe, a connecting groove, a piston slider, a connecting rod and a clamping and fixing block. When compressed gas or high-pressure oil is input into the shell through the first connecting pipe, the gas pressure or oil pressure causes the piston slider to move inside the connecting groove, so that the clamping and fixing block contacts the outer surface of the part processed by the CNC machine tool and clamps it, and a plurality of clamping and fixing blocks automatically adapt to the surface of the part and contact it. When compressed gas or high-pressure oil is input into the second connecting pipe, the piston slider moves in the opposite direction, and the clamping and fixing block is separated from the part, thereby releasing the clamping of the part.

[0014] 2. The utility model can avoid direct contact between the clamping block and the parts by providing the rubber block, and because the rubber block is soft in texture, it can avoid causing damage to the surface of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the partial main cross-sectional structure of the piston slider of the utility model;

[0018] Figure 4 It is a schematic diagram of the top sectional structure of the utility model.

[0019] Figure numerals: 1. triangular fixing frame; 2. mounting hole; 3. outer shell; 4. first connecting pipe; 5. quick connector; 6. fixing plate; 7. clamping fixing block; 8. groove; 9. rubber block; 10. second connecting pipe; 11. sealing plate; 12. connecting rod; 13. piston slider; 14. annular groove; 15. sealing ring; 16. connecting chamber; 17. connecting slide groove. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] like Figure 1-Figure 4 As shown, the utility model proposes a fixture for CNC machine tool processing, including a shell 3, the front surface and the rear surface of the shell 3 are fixedly installed with triangular fixing frames 1, and the upper surface of each triangular fixing frame 1 is provided with mounting holes 2, bolts pass through the mounting holes 2 to fix the shell 3 to the CNC machine tool, and connecting chambers 16 are symmetrically arranged at both sides of the shell 3, and the upper surface of the shell 3 is located above the two connecting chambers 16. The first connecting pipe 4 and the second connecting pipe 10 are respectively fixedly connected, and the compressed air or high-pressure oil enters the shell 3 through the first connecting pipe 4 or the second connecting pipe 10, and the ends of the first connecting pipe 4 and the second connecting pipe 10 are fixedly connected with quick connectors 5, and the external high-pressure air pipe or high-pressure oil pipe is connected to the first connecting pipe 4 or the second connecting pipe 10 through the two quick connectors 5.

[0022] A plurality of connecting grooves 17 are equidistantly arranged between the two connecting chambers 16 inside the shell 3, and piston sliders 13 are installed for sliding inside the connecting grooves 17. An annular groove 14 is provided on the outer surface of each piston slider 13, and a sealing ring 15 is provided inside each annular groove 14. A connecting rod 12 is fixedly connected to the side of the outer surface of each piston slider 13 close to the second connecting pipe 10, and a clamping block 7 is fixedly connected to the end of each connecting rod 12, and the clamping block 7 is located outside the shell 3, and a groove 8 is provided on the outer side of each clamping block 7, and a rubber block 9 is fixedly installed inside each groove 8. The rubber block 9 can avoid direct contact between the clamping block 7 and the parts, and because the rubber block 9 is soft in texture, it can avoid damage to the surface of the parts. In the process of use, generally two of the present devices are used together, respectively located on both sides of the parts, and the two sides of the parts are clamped and fixed by the two present devices.

[0023] A fixing plate 6 is fixedly installed on one side of the outer surface of the shell 3 close to the second connecting pipe 10, and the connecting rod 12 passes through the fixing plate 6. An opening is set on one side of the outer surface of the shell 3 close to the fixing plate 6 for disassembly and maintenance of the piston slider 13. The fixing plate 6 and the shell 3 are fixedly connected by screws. A sealing plate 11 is fixedly installed on the inner side of the fixing plate 6, and the connecting rod 12 passes through the sealing plate 11. The sealing plate 11 seals the gap between the fixing plate 6 and the shell 3 and between the connecting rod 12 and the fixing plate 6.

[0024] When the utility model is in use, when compressed gas or high-pressure oil is input into the interior of the housing 3 through the first connecting pipe 4, the gas pressure or oil pressure causes the piston slider 13 to move inside the connecting slide groove 17, so that the clamping block 7 contacts the outer surface of the part processed by the CNC machine tool and clamps it, and multiple clamping blocks 7 automatically adapt to the surface of the part and contact it. When compressed gas or high-pressure oil is input into the second connecting pipe 10, the piston slider 13 moves in the opposite direction, and the clamping block 7 is separated from the part, and the clamping of the part is released.

[0025] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A fixture for CNC machine tool processing, comprising a housing (3), characterized in that: The shell (3) has symmetrically arranged communicating chambers (16) at both sides thereof; the upper surface of the shell (3) is fixedly connected with a first connecting pipe (4) and a second connecting pipe (10) at positions above the two communicating chambers (16); the shell (3) has a plurality of communicating slide grooves (17) equidistantly arranged between the two communicating chambers (16); piston slide blocks (13) are slidably installed inside the communicating slide grooves (17); a connecting rod (12) is fixedly connected to the outer surface of each piston slide block (13) on a side close to the second connecting pipe (10); a clamping fixing block (7) is fixedly connected to the end of each connecting rod (12); and the clamping fixing block (7) is located outside the shell (3).

2. A fixture for CNC machine tool processing according to claim 1, characterized in that: A fixing plate (6) is fixedly mounted on one side of the outer surface of the housing (3) close to the second connecting pipe (10), and the connecting rod (12) passes through the fixing plate (6).

3. A fixture for CNC machine tool processing according to claim 2, characterized in that: A sealing plate (11) is fixedly mounted on the inner side of the fixing plate (6), and a connecting rod (12) passes through the sealing plate (11).

4. The fixture for CNC machine tool processing according to claim 1, characterized in that: An annular groove (14) is provided on the outer surface of each piston slide block (13), and a sealing ring (15) is provided inside each annular groove (14).

5. The fixture for CNC machine tool processing according to claim 1, characterized in that: A groove (8) is provided on the outside of each clamping and fixing block (7), and a rubber block (9) is fixedly installed inside each groove (8).

6. The fixture for CNC machine tool processing according to claim 1, characterized in that: A triangular fixing frame (1) is fixedly mounted on the front surface and the rear surface of the shell (3), and a mounting hole (2) is provided on the upper surface of each triangular fixing frame (1).

7. The fixture for CNC machine tool processing according to claim 1, characterized in that: The ends of the first connecting tube (4) and the second connecting tube (10) are both fixedly connected with quick connectors (5).

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