Piston type vacuum chuck

Abstract

The utility model relates to a piston type vacuum chuck, and belongs to the technical field of tool fixtures. According to the technical scheme, the device comprises a vertical rod (2), a shell (3), a suction cup (5), a first spring (10), a clamping head (11), a piston (13), a button (15) and a second spring (16), the shell (3) is in a cylindrical shape with the upper end closed, the suction cup (5) is fixed to the lower end of the shell (3), the piston (13) is arranged in the shell (3), the lower end of the vertical rod (2) is connected with the piston (13) in the shell (3), corresponding blind holes are formed in the two sides of the piston (13), and the lower end of the vertical rod (2) is connected with the clamping head (11). A first spring (10) and a clamping head (11) are arranged in each blind hole, stepped holes (18) are formed in the two corresponding sides of the upper portion of the shell (3), and a button (15) and a second spring (16) are arranged in each stepped hole (18). The sample is adsorbed by adopting a piston direct vacuumizing mode, the sealing performance is good, and the service life is long.

Description

Technical Field

[0001] The utility model relates to a piston type vacuum sucker and belongs to the technical field of tooling fixtures. Background Art

[0002] In the process of transporting non-magnetic samples, the vacuum suction cup is generally used. At present, small vacuum suction cups on the market all use leather cup vacuum suction cups. By squeezing or stretching the leather cup, a vacuum is formed inside the leather cup to absorb the sample. Because the leather cup is made of rubber and is exposed to the use environment. It can generally be used for 1-2 years in a normal environment, and the use time is shorter in a harsh environment. In order to extend the life of the vacuum suction cup in a harsh environment, it is necessary to develop a new small vacuum suction cup. Utility Model Content

[0003] The utility model aims to provide a piston type vacuum suction cup, which absorbs samples by directly vacuuming with a piston, has good sealing performance and long service life, and solves the problems existing in the background technology.

[0004] The technical solution of the utility model is:

[0005] A piston-type vacuum suction cup comprises a vertical rod, an outer shell, a suction cup, a spring 1, a clamp, a piston, a button and a spring 2. The outer shell is a cylinder with a closed upper end. The suction cup is fixed to the lower end of the outer shell. A piston is arranged inside the outer shell. The lower end of the vertical rod is connected to the piston inside the outer shell. Corresponding blind holes are arranged on both sides of the piston. A spring 1 and a clamp are arranged in each blind hole. Step holes are arranged on the corresponding two sides of the upper part of the outer shell. A button and a spring 2 matching the clamp are arranged in each step hole.

[0006] The piston is also provided with a Gray ring matched with the shell.

[0007] The piston, the grid ring, the clamp head and the spring constitute a vacuum pumping device of the shell.

[0008] The button is fixed on the housing through a pressing cover.

[0009] The pressure cover, the button and the spring constitute a releasing device.

[0010] A mushroom head is arranged on the upper end of the vertical rod.

[0011] The vertical rod is also provided with a limiting plate matched with the outer shell.

[0012] The upper end of the shell is provided with a buffer pad matched with the limiting plate.

[0013] A sealing ring is arranged on the dish mouth of the sucker.

[0014] The utility model has the beneficial effects of: directly vacuuming the sample by the piston, having good sealing performance, simple operation and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the vacuum state structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the vacuum pumping device of the utility model;

[0018] Figure 4 This is a schematic diagram of the release device of the utility model;

[0019] Figure 5 This is a schematic diagram of the shell structure of the utility model;

[0020] In the figure: mushroom head 1, vertical rod 2, shell 3, vacuum device 4, suction cup 5, sealing ring 6, limit plate 7, buffer pad 8, release device 9, spring 1 10, clamping head 11, grid ring 12, piston 13, pressure cover 14, button 15, spring 2 16, round hole 17, stepped hole 18. DETAILED DESCRIPTION

[0021] The present invention will be further described below by way of examples with reference to the accompanying drawings.

[0022] See attached Figure 1-5 A piston type vacuum suction cup comprises a vertical rod 2, a shell 3, a suction cup 5, a spring 10, a clamp 11, a piston 13, a button 15 and a spring 2 16. The shell 3 is a cylindrical shape with a closed upper end. The suction cup 5 is fixed to the lower end of the shell 3. A piston 13 is arranged inside the shell 3. The lower end of the vertical rod 2 is connected to the piston 13 inside the shell 3. Corresponding blind holes are arranged on both sides of the piston 13. A spring 10 and a clamp 11 are arranged in each blind hole. Step holes 18 are arranged on the corresponding two sides of the upper part of the shell 3. A button 15 and a spring 2 16 matching the clamp 11 are arranged in each step hole 18.

[0023] In this embodiment, refer to the attached Figure 1 The utility model includes a mushroom head 1, a vertical pole 2, a shell 3, a vacuum device 4, a suction cup 5, a square sealing ring 6, a limiting plate 7, a buffer pad 8 and a release device 9, wherein the suction cup 5 is bonded to the lower part of the shell 3, the vacuum device 4 is installed inside the shell 3, and can slide up and down along the inner wall of the shell 3; the mushroom head 1 is installed on the upper end of the vertical pole 2 through a threaded connection; the lower end of the vertical pole 2 passes through the upper circular hole 17 of the shell 3 and is connected to the vacuum device 4 through a threaded connection; the limiting plate 7 is welded to the vertical pole 2 after adjusting the position; the buffer pad 8 is bonded to the circular hole 17 on the upper part of the shell 3.

[0024] like Figure 3 As shown, the vacuum device 4 is composed of a piston 13, a grid ring 12, a chuck 11, and a spring 10. The grid ring 12 is installed in two grooves of the piston 13, and the chuck 11 is installed in blind holes on the side of the piston 13, one on each side. The spring 10 is installed between the chuck 11 and the blind hole to push the chuck 11 to slide in the blind hole.

[0025] like Figure 4 As shown, the release device 9 consists of a button 15, a pressure cap 14, and a spring 16, wherein the button 15 is installed in a stepped hole 18 on the upper part of the housing 3, the pressure cap 14 is installed outside the button 15 and is connected to the stepped hole 18 of the housing 3 by threads, and the spring 16 is installed between the button 15 and the stepped hole 18.

[0026] like Figure 1 , 2 As shown, a buffer pad 8 is designed between the limiting plate 7 and the housing 3 , and a sealing ring 6 is installed in the groove of the mouth of the suction cup 5 to increase the sealing performance of the suction cup 5 .

[0027] The specific steps are as follows:

[0028] When in use, place the suction cup 5 close to the surface of the sample, pull the mushroom head 1 upwards, and make the clamping head 11 fit into the stepped hole 18 to suck up the sample; press the button 15 of the release device 9, and under the action of suction, the piston automatically resets, the vacuum disappears, and the sample falls.

[0029] An embodiment of the present utility model is as follows:

[0030] Pole 2: diameter 10mm, length 160mm;

[0031] Shell 3: outer diameter 80mm, inner diameter 50mm, length 105mm;

[0032] Suction cup 5: diameter of the cup is 100mm, thickness is 5mm;

[0033] Sealing ring 6: inner diameter 90, cross-sectional area 3mm*3mm;

[0034] Gray circle 12: STD60*49*4.2;

[0035] Piston 13: outer diameter 46mm, height 25mm;

[0036] Limiting plate 7: outer diameter 40mm, inner hole diameter 15mm, thickness 5mm;

[0037] Buffer pad 8: inner diameter 15mm, outer diameter 40mm;

[0038] Spring 10: outer diameter 3mm, wire diameter 0.5mm, free height 20mm;

[0039] Spring 2 16: outer diameter 10mm, wire diameter 0.5mm, free height 20mm;

[0040] Chuck 11: diameter 5mm, length 15mm;

[0041] Stepped hole 18: small hole diameter 5mm, length 5mm, large hole M10 thread, length 10mm.

Claims

1. A piston type vacuum suction cup, characterized in that: The invention comprises a vertical rod (2), a shell (3), a suction cup (5), a spring 1 (10), a clamp (11), a piston (13), a button (15) and a spring 2 (16); the shell (3) is a cylindrical shape with a closed upper end; the suction cup (5) is fixed to the lower end of the shell (3); a piston (13) is arranged inside the shell (3); the lower end of the vertical rod (2) is connected to the piston (13) inside the shell (3); corresponding blind holes are arranged on both sides of the piston (13); a spring 1 (10) and a clamp (11) are arranged in each blind hole; corresponding two sides of the upper part of the shell (3) are provided with stepped holes (18); each stepped hole (18) is provided with a button (15) and a spring 2 (16) matched with the clamp (11).

2. A piston type vacuum suction cup according to claim 1, characterized in that: The piston (13) is also provided with a grid ring (12) that matches the housing (3).

3. A piston type vacuum suction cup according to claim 2, characterized in that: The piston (13), the grid ring (12), the clamping head (11) and the spring 1 (10) constitute a vacuum pumping device (4) of the housing (3).

4. A piston type vacuum suction cup according to claim 1, characterized in that: The button (15) is fixed on the housing (3) via a pressing cover (14).

5. A piston type vacuum suction cup according to claim 4, characterized in that: The pressure cover (14), the button (15) and the second spring (16) constitute a release device (9).

6. A piston type vacuum suction cup according to claim 1, characterized in that: The upper end of the vertical rod (2) is provided with a mushroom head (1).

7. A piston type vacuum suction cup according to claim 6, characterized in that: The vertical rod (2) is also provided with a limiting plate (7) that matches the outer shell (3).

8. A piston type vacuum suction cup according to claim 7, characterized in that: The upper end of the housing (3) is provided with a buffer pad (8) which matches the limiting plate (7).

9. The piston vacuum chuck according to claim 1, characterized in that: A sealing ring (6) is provided on the opening of the suction cup (5).

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