Special-shaped small part CNC machining pneumatic fastening device

Abstract

The utility model discloses a special-shaped small piece CNC processing pneumatic fastening device, including base and setting a plurality of air cylinders on the base, and the base upper surface one side is equipped with the cross bar and sets up a plurality of verticals of vertical bar with cross bar on the base, the air cylinder piston rod end is equipped with the disc, the disc with cross bar with vertical bar cooperation clamps the work piece. When working, the work piece is placed in the right angle position formed by the cross bar and the vertical bar, the air cylinder piston rod stretches out, the disc presses down the work piece, and the cross bar and the vertical bar cooperate to clamp the work piece. The processing reference is fixed, guarantees the work piece fixed firm, and the finished product processing size is consistent. The vertical bar divides the space of the cross bar one side on base 1 into a plurality of positioning spaces, and two work pieces are symmetrically arranged in each positioning space, so that the quick loading and unloading of multiple work pieces can be realized, and the processing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of machining irregular small parts, specifically a pneumatic fastening device for CNC machining of irregular small parts. Background Technology

[0002] CNC machining is an automated manufacturing technology that uses computer programs to control the movement and machining operations of machine tools. It combines computer technology, mechanical manufacturing technology, and automation control technology, and is widely used in modern manufacturing.

[0003] When CNC machining irregularly shaped small parts, it is necessary to fix the workpiece with a fixture to facilitate machining. For example, patent application number 202420301553.X, entitled "A Clamping Mechanism for Irregularly Shaped Parts on a Lathe," discloses a technical solution including a lathe body, a first motor fixedly connected to the rear of the lathe body, a first drive shaft fixedly connected to the front end of the first motor, a threaded rod fixedly connected to the front end of the first drive shaft, a baffle fixedly connected to the front end of the threaded rod, a first limiting plate screwed to the rear of the threaded rod, a second limiting plate screwed to the front of the threaded rod, and an electric push rod fixedly connected to the lower side of the lathe body. This solution clamps the workpiece using the first and second limiting plates, but it cannot effectively clamp and fix irregularly shaped parts.

[0004] For example, patent application number 202420990544.6, entitled "A Clamping Mechanism for Irregularly Shaped Workpieces in CNC Machine Tools," discloses a technical solution including a base plate. Adjustable seats are movably connected to both sides of the top of the base plate via clamping mechanisms. Clamping bases are movably connected to opposite sides of the two adjustable seats via limiting components. Clamping arc plates and fixed clamping plates are fixedly connected to the tops of the two clamping bases, respectively. Abutment clamping plates are movably connected to both sides of the fixed clamping plate via abutment mechanisms. An irregularly shaped workpiece is positioned between the clamping arc plate and the fixed clamping plate. This solution clamps the workpiece using the clamping arc plate and the fixed clamping plate. While it can clamp some irregularly shaped workpieces, it cannot effectively clamp and fix the workpiece when the workpiece and the clamping arc plate cannot fit tightly.

[0005] In summary, the above solutions have the following problems: 1. The machining datum is not fixed, and the workpiece is prone to fall off midway through the machining process; 2. Each clamping is a single piece, resulting in low efficiency. Utility Model Content

[0006] The purpose of this invention is to solve the above problems and provide a pneumatic fastening device for CNC machining of irregularly shaped small parts. The workpiece is firmly fixed, the finished product has consistent dimensions, and multiple workpieces can be quickly loaded and unloaded, thus improving processing efficiency.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A pneumatic fastening device for CNC machining of irregularly shaped small parts includes a base and several cylinders disposed on the base. A horizontal bar is provided on one side of the upper surface of the base and several vertical bars perpendicular to the horizontal bar are disposed on the base. A disc is provided at the piston rod end of the cylinder. The disc cooperates with the horizontal bar and the vertical bars to clamp the workpiece.

[0009] Furthermore, the end of the vertical bar is in close contact with the side of the horizontal bar.

[0010] Furthermore, grooves are provided on both sides of the end of the vertical rod that contacts the horizontal rod.

[0011] Furthermore, positioning grooves are provided on the upper surface of the base at positions corresponding to the horizontal bar and the vertical bar.

[0012] Furthermore, the piston rod end of the cylinder is provided with a slider, the slider is provided with a groove, and the disc is disposed in the groove and rotates within the groove.

[0013] Furthermore, the piston rod end of the cylinder is provided with a T-shaped block, and the slider is provided with a T-shaped groove that cooperates with the T-shaped block.

[0014] Furthermore, the base is provided with a groove that mates with the slider.

[0015] The beneficial effects of this utility model are:

[0016] 1. This utility model features a horizontal bar on one side of the upper surface of the base and several vertical bars perpendicular to the horizontal bar. A disc is located at the end of the cylinder piston rod, and the disc cooperates with the horizontal bar and vertical bars to clamp the workpiece. During operation, the workpiece is placed at the right angle formed by the horizontal bar and vertical bars. The cylinder piston rod extends, and the disc presses down on the workpiece, clamping it in cooperation with the horizontal bar and vertical bars. The machining datum is fixed, ensuring the workpiece is firmly fixed and the finished product has consistent dimensions. The vertical bars divide the space on one side of the horizontal bar on the base 1 into several positioning spaces. Two workpieces are symmetrically arranged in each positioning space, enabling rapid loading and unloading of multiple workpieces and improving processing efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a top view of the present invention;

[0020] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the base structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the disc structure of this utility model.

[0023] In the diagram: 1. Base; 2. Cylinder; 3. Horizontal bar; 4. Vertical bar; 5. Disc; 6. Workpiece; 7. Groove; 8. Positioning groove; 9. Slider; 10. Slot; 11. T-block; 12. T-slot; 13. Slide. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0025] like Figure 1 As shown, a pneumatic clamping device for CNC machining of irregularly shaped small parts includes a base 1 and several cylinders 2 mounted on the base 1. A horizontal bar 3 and several vertical bars 4 perpendicular to the horizontal bar 3 are provided on one side of the upper surface of the base 1. The vertical bars 4 divide the space on one side of the horizontal bar 3 on the base 1 into several positioning spaces. The horizontal bar 3 and vertical bars 4 are fixed to the base 1 with screws. A disc 5 is provided at the piston rod end of each cylinder 2. The disc 5 cooperates with the horizontal bar 3 and vertical bars 4 to clamp the workpiece 6. During operation, the workpiece 6 is placed at the right angle formed by the horizontal bar 3 and vertical bars 4, meaning that workpieces 6 are symmetrically positioned in each positioning space. Then, the piston rod of the cylinder 2 extends, and the disc 5 presses down on the workpiece 6, clamping it in cooperation with the horizontal bar 3 and vertical bars 4. The machining reference is fixed, ensuring the workpiece is firmly fixed and the finished product has consistent dimensions. The vertical bars 4 divide the space on one side of the horizontal bar 3 on the base 1 into several positioning spaces, with two workpieces symmetrically positioned in each positioning space, enabling rapid loading and unloading of multiple workpieces and improving machining efficiency.

[0026] like Figure 2 As shown, the end of the vertical rod 4 is in close contact with the side of the horizontal rod 3.

[0027] like Figure 2 and Figure 3As shown, grooves 7 are provided on both sides of the end of the vertical rod 4 that contacts the horizontal rod 3. By providing grooves 7, the protruding shape of the end of the workpiece can be accommodated, adapting to different shapes of the workpiece and ensuring that the workpiece is clamped securely.

[0028] like Figure 4 As shown, the upper surface of the base 1 is provided with positioning grooves 8 at positions corresponding to the horizontal bar 3 and the vertical bar 4. The positions of the horizontal bar 3 and the vertical bar 4 are positioned by the positioning grooves 8 to ensure that the installation positions of the horizontal bar 3 and the vertical bar 4 are accurate.

[0029] like Figure 5 As shown, the piston rod end of the cylinder 2 is provided with a slider 9, and the slider 9 is provided with a slot 10. The disc 5 is set in the slot 10 and rotates in the slot 10. For workpieces of different shapes, the workpieces can be fixed by replacing the disc 5. When the left and right workpieces 6 are different in size, the disc 5 can rotate, thereby achieving the clamping of the workpieces 6 on both sides.

[0030] like Figure 5 As shown, the piston rod end of the cylinder 2 is provided with a T-shaped block 11, and the slider 9 is provided with a T-shaped groove 12 that cooperates with the T-shaped block 11.

[0031] like Figure 4 As shown, the base 1 is provided with a groove 13 that cooperates with the slider 9. The slider 9 can slide in the groove 13, which serves as a guide and prevents the slider 9 from deviating.

[0032] In the description of this utility model, it should be noted that the terms "left", "right", "up", "down", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A pneumatic fastening device for CNC machining of irregularly shaped small parts, comprising a base (1) and a plurality of cylinders (2) disposed on the base (1), characterized in that, The base (1) has a horizontal bar (3) on one side of its upper surface and several vertical bars (4) that are perpendicular to the horizontal bar (3) on the base (1). The piston rod end of the cylinder (2) is provided with a disc (5). The disc (5) cooperates with the horizontal bar (3) and the vertical bars (4) to clamp the workpiece (6).

2. The pneumatic fastening device for CNC machining of irregularly shaped small parts as described in claim 1, characterized in that, The end of the vertical rod (4) is in close contact with the side of the horizontal rod (3).

3. The pneumatic fastening device for CNC machining of irregularly shaped small parts as described in claim 2, characterized in that, The vertical rod (4) has grooves (7) on both sides of the end that contacts the horizontal rod (3).

4. The pneumatic fastening device for CNC machining of irregularly shaped small parts as described in claim 1, characterized in that, The upper surface of the base (1) is provided with positioning grooves (8) at positions corresponding to the horizontal bar (3) and the vertical bar (4).

5. The pneumatic fastening device for CNC machining of irregularly shaped small parts as described in claim 1, characterized in that, The piston rod end of the cylinder (2) is provided with a slider (9), and the slider (9) is provided with a slot (10). The disc (5) is set in the slot (10) and rotates in the slot (10).

6. The pneumatic fastening device for CNC machining of irregularly shaped small parts as described in claim 5, characterized in that, The piston rod end of the cylinder (2) is provided with a T-shaped block (11), and the slider (9) is provided with a T-shaped groove (12) that cooperates with the T-shaped block (11).

7. The pneumatic fastening device for CNC machining of irregularly shaped small parts as described in claim 5, characterized in that, The base (1) is provided with a groove (13) that cooperates with the slider (9).

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