Numerical control machining clamp for irregular bottom plate

Abstract

The utility model relates to the technical field of clamps, and discloses a numerical control machining clamp for an irregular bottom plate, which comprises a bottom bin, a bin cover mounted at an opening of the top of the bottom bin, a T-shaped pipe mounted on one side of the bottom bin in a penetrating manner, telescopic pipe components mounted at two suction ends of the T-shaped pipe, vacuum suction cups mounted at vacuum suction ends of the telescopic pipe components, and a clamping device mounted on the bottom bin, and pipeline channels allowing the vacuum suction cups to penetrate through are formed in the front side and the rear side of the top of the bin cover. According to the numerical control machining clamp for the irregular bottom plate, the linear motor drives the translation plate to move, meanwhile, the distance between the two vacuum suction cups is adjusted, according to different machining faces of the bottom plate, the distance between the two vacuum suction cups is adaptively adjusted, and when the two faces of the bottom plate are adsorbed, the machining efficiency is greatly improved. The base plate can be firmly adsorbed and fixed in a vacuum mode, due to the adjustability of the adsorption points of the vacuum suction cups, one clamp can effectively fix the two faces of the irregular base plate in a matched mode, and the flexibility is high.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to a numerical control machining jig for an irregular base plate. Background Technique

[0002] When machining a base plate workpiece, it needs to be fixed by a jig before being placed on a numerical control machine tool for high-precision machining. For some of the base plates to be machined, they are in an irregular state. For example, one side of the chassis is convex, while the other side may be concave, and the two sides are not in a consistent state.

[0003] For the existing related technologies, there are often the following defects: the clamping points of the jig are in a fixed state, and due to the complex bottom shape of the irregular workpiece, it is impossible to ensure the consistency of the clamping points during flipping clamping, which affects the stability of clamping the chassis, easily leads to inaccurate positioning during the machining process, and cannot effectively fix the workpiece.

[0004] Therefore, we propose a numerical control machining jig for an irregular base plate. Content of the Utility Model

[0005] The purpose of the utility model is to provide a numerical control machining jig for an irregular base plate to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A numerical control machining jig for an irregular base plate, comprising: a bottom bin, a bin cover is installed at the open top of the bottom bin, a T-shaped pipe is inserted and installed on one side of the bottom bin, telescopic pipe assemblies are installed at both suction ends of the T-shaped pipe, a vacuum suction cup is installed at the vacuum suction end of the telescopic pipe assembly, and pipe channels for the vacuum suction cup to pass through are opened at the front and rear edges of the top of the bin cover.

[0008] As an improved technical solution, a threaded interface is installed at the air outlet end of the T-shaped pipe.

[0009] As an improved technical solution, a partition is installed in the middle of the bottom bin. The telescopic pipe assembly includes a translation plate slidably installed on the surface of the partition. A middle part of the top of the translation plate is installed with an L-shaped pipe, and the vacuum suction cup is installed at the top end of the L-shaped pipe. A metal hose is installed between the suction end of the T-shaped pipe and the air outlet end of the L-shaped pipe.

[0010] As an improved technical solution, the telescopic pipe assembly further includes two slide rails installed on the top of the partition. A slider that slides on the slide rail is installed on one end surface of the translation plate close to the slide rail.

[0011] As an improved technical solution, the telescopic tube assembly further includes a linear motor installed at the bottom of the inner wall of the bottom bin. An electromagnet is installed at the top of the movable end of the linear motor, and a magnetic block magnetically adsorbed by the electromagnet is inlaid and installed at the bottom of the translation plate.

[0012] As an improved technical solution, a groove having the same length as the linear motor is provided at the bottom of the partition and directly above the linear motor, and the top end of the electromagnet is located inside the groove.

[0013] As an improved technical solution, horizontal clamps are installed on both the front and rear sides of one side of the top of the bottom bin, and pressing plates are installed at the pressing ends of the horizontal clamps.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. In this utility model, while the linear motor drives the translation plate to move, it also adjusts the distance between the two vacuum suction cups. According to different processing surfaces of the bottom plate, the distance between the two vacuum suction cups is adjusted adaptively. When the bottom plate is adsorbed on both sides, reliable vacuum adsorption and fixation of the bottom plate can be achieved. Due to the adjustable adsorption points of the vacuum suction cups, one fixture can effectively and adaptively fix both sides of an irregular chassis, with high flexibility.

[0016] 2. In this utility model, the partition is provided and magnetic isolation drive is adopted to avoid the erosion of waste chips and coolant on the linear motor, thereby avoiding damage to the equipment and extending the service life of the fixture.

[0017] 3. In this utility model, after the bottom plate is vacuum adsorbed by the two vacuum suction cups, control the two horizontal clamps to drive the pressing plates to further reinforce the bottom plate from the top, further limit the workpiece, avoid the situation of misalignment of the chassis during processing, and ensure the processing accuracy of the bottom plate. Description of the Drawings

[0018] Figure 1 It is a structural schematic diagram of a numerical control machining fixture for an irregular bottom plate;

[0019] Figure 2 It is an internal structural schematic diagram of the bottom bin in a numerical control machining fixture for an irregular bottom plate;

[0020] Figure 3 It is for a numerical control machining fixture for an irregular bottom plate Figure 2 The enlarged structural schematic diagram at position A.

[0021] In the figure: 1. Bottom bin; 11. Bin cover; 12. Pipe channel; 13. Partition board; 2. Horizontal clamp; 21. Pressing plate; 3. Vacuum suction cup; 4. T-shaped pipe; 41. Threaded interface; 5. Telescopic pipe assembly; 51. Translation plate; 52. Slide rail; 53. Linear motor; 54. Electromagnet; 55. L-shaped pipe; 56. Metal hose. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1 to 3 , the present invention proposes a technical solution, a numerical control processing fixture for an irregular bottom plate, including: a bottom bin 1, a bin cover 11 is installed at the open top of the bottom bin 1, a T-shaped pipe 4 is inserted and installed on one side of the bottom bin 1, telescopic pipe assemblies 5 are installed at both suction ends of the T-shaped pipe 4, a vacuum suction cup 3 is installed at the vacuum suction end of the telescopic pipe assembly 5, and pipe channels 12 for the vacuum suction cup 3 to pass through are opened at the front and rear edges of the top of the bin cover 11.

[0024] A threaded interface 41 is installed at the air outlet end of the T-shaped pipe 4.

[0025] A partition board 13 is installed in the middle of the bottom bin 1. The telescopic pipe assembly 5 includes a translation plate 51 slidably installed on the surface of the partition board 13. The middle of the top of the translation plate 51 is installed with an L-shaped pipe 55, and the vacuum suction cup 3 is installed at the top end of the L-shaped pipe 55. A metal hose 56 is installed between the suction end of the T-shaped pipe 4 and the air outlet end of the L-shaped pipe 55. The setting of the metal hose 56 ensures the connectivity between the T-shaped pipe 4 and the inside of the vacuum suction cup 3 when the position of the vacuum suction cup 3 is adjusted by stretching the metal hose 56.

[0026] While the linear motor 53 drives the translation plate 51 to move, it also drives the vacuum suction cup 3 to move, thereby realizing the adjustment of the distance between the two vacuum suction cups 3. According to the different processing surfaces of the bottom plate, the distance between the two vacuum suction cups 3 is adjusted adaptively. When the bottom plate is adsorbed on both sides, reliable vacuum adsorption fixation can be carried out on the bottom plate. Due to the adjustable adsorption points of the vacuum suction cup 3, a fixture can effectively and adaptively fix both sides of an irregular chassis, with high flexibility.

[0027] The telescopic tube assembly 5 includes two slide rails 52 mounted on the top of the partition plate 13. One end face of the translation plate 51 close to the slide rail 52 is provided with a slider that slides on the slide rail 52. The partition plate 13 is arranged and uses magnetic isolation drive to prevent waste chips and coolant from eroding the linear motor 53, thereby avoiding damage to the equipment and extending the service life of the fixture.

[0028] The telescopic tube assembly 5 further includes a linear motor 53 mounted on the bottom of the inner wall of the bottom bin 1. The top of the movable end of the linear motor 53 is provided with an electromagnet 54, and a magnetic block magnetically adsorbed to the electromagnet 54 is inlaid and installed at the bottom of the translation plate 51.

[0029] A groove equal in length to the linear motor 53 is opened at the bottom of the partition plate 13 and directly above the linear motor 53, and the top end of the electromagnet 54 is located inside the groove. The opening of the groove is used to shorten the distance between the electromagnet 54 and the magnetic block, thereby increasing the magnetic adsorption force therebetween.

[0030] Horizontal clamps 2 are installed on the front and rear sides of one side of the top of the bottom bin 1. A pressing plate 21 is installed at the pressing end of the horizontal clamp 2. After the bottom plate is vacuum adsorbed by the two vacuum suction cups 3, the two horizontal clamps 2 are controlled to drive the pressing plate 21 to further reinforce the bottom plate from the top, further limit the workpiece, avoid the situation of misalignment of the chassis during processing, and ensure the machining accuracy of the bottom plate.

[0031] The working principle of the present utility model is:

[0032] During use, the two linear motors 53 drive the electromagnets 54 to move simultaneously. Under the magnetic adsorption action of the electromagnets 54 and the magnetic blocks at the bottom of the translation plate 51, when the linear motors 53 drive the translation plate 51 to move, they will also drive the vacuum suction cups 3 to move, thereby realizing the adjustment of the distance between the two vacuum suction cups 3. According to different machining surfaces of the bottom plate, the distance between the two vacuum suction cups 3 is adjusted adaptively. When the bottom plate is adsorbed on both sides, reliable vacuum adsorption fixation of the bottom plate can be achieved.

[0033] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A CNC machining fixture for irregular bottom plates, characterized in that: include: A bottom bin (1), wherein a bin cover (11) is installed at an open position at the top of the bottom bin (1), a T-shaped tube (4) is inserted and installed on one side of the bottom bin (1), telescopic tube assemblies (5) are installed at both suction ends of the T-shaped tube (4), a vacuum suction cup (3) is installed at the vacuum suction end of the telescopic tube assembly (5), and a pipe channel (12) for the vacuum suction cup (3) to pass through is opened at the front and rear edges of the top of the bin cover (11).

2. The CNC machining fixture for irregular bottom plates according to claim 1, characterized in that: A threaded interface (41) is installed at the gas outlet end of the T-shaped tube (4).

3. The CNC machining fixture for irregular bottom plates according to claim 2, characterized in that: A partition (13) is installed in the middle of the bottom bin (1), the telescopic tube assembly (5) comprises a translation plate (51) slidably installed on the surface of the partition (13), an L-shaped tube (55) is installed in the middle of the top of the translation plate (51), and the vacuum suction cup (3) is installed at the top end of the L-shaped tube (55), and a metal hose (56) is installed between the air suction end of the T-shaped tube (4) and the air outlet end of the L-shaped tube (55).

4. The CNC machining fixture for irregular bottom plates according to claim 3 is characterized in that: The telescopic tube assembly (5) further comprises two slide rails (52) mounted on the top of the partition plate (13); a sliding block that slides on the slide rail (52) is mounted on one end surface of the translation plate (51) close to the slide rail (52).

5. The CNC machining fixture for irregular bottom plates according to claim 4, characterized in that: The telescopic tube assembly (5) further comprises a linear motor (53) mounted on the bottom of the inner wall of the bottom bin (1); an electromagnet (54) is mounted on the top of the movable end of the linear motor (53); and a magnetic block magnetically attracted to the electromagnet (54) is mounted on the bottom of the translation plate (51).

6. The CNC machining fixture for irregular bottom plates according to claim 5, characterized in that: A groove having the same length as the linear motor (53) is provided at the bottom of the partition (13) and directly above the linear motor (53), and the top end of the electromagnet (54) is located inside the groove.

7. The CNC machining fixture for irregular bottom plates according to claim 6, characterized in that: Horizontal clamps (2) are installed at the front and rear sides of one side of the top of the bottom bin (1), and a pressing plate (21) is installed at the pressing end of the horizontal clamp (2).

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