CN220563755U

CN220563755U - Vacuum adsorption device

Info

Publication number: CN220563755U
Application number: CN202322048143.7U
Authority: CN
Inventors: 王耘琪
Original assignee: Foshan Maya Numerical Control Equipment Co ltd
Current assignee: Foshan Maya Numerical Control Equipment Co ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-03-08
Anticipated expiration: 2033-07-31

Abstract

A vacuum adsorption device comprises a cylinder body and a piston; the cylinder body comprises a columnar hollow side wall, a first end wall, a second end wall and a partition plate; the partition board, the first end wall and the side wall form a first cavity, and the partition board, the second end wall and the side wall form a second cavity; the air inlet device comprises a side wall vent hole and two air inlet interfaces, wherein the two air inlet interfaces are spaced a certain distance along the length direction of the side wall; the first end wall is provided with a through hole; the piston comprises a first sealing plate, a second sealing plate and a connecting rod, wherein the connecting rod is movably connected to the partition board in a penetrating way, two ends of the connecting rod respectively extend into the first cavity and the second cavity, and two ends of the connecting rod are respectively fixedly connected with the first sealing plate and the second sealing plate; the first sealing plate is arranged in the first cavity and can slide between the first end wall and the vent hole; the second sealing plate is arranged in the second cavity and can slide between the two air inlet interfaces. The utility model does not need a compressor, simplifies the structure of the vacuum adsorption device and reduces the equipment cost.

Description

Vacuum adsorption device

Technical Field

The utility model relates to the technical field of vacuum adsorption, in particular to a vacuum adsorption device.

Background

Vacuum adsorption devices are common mechanisms of processing equipment, and are commonly used for transferring workpieces; the current vacuum adsorption device generally comprises a cylinder body and a sucking disc arranged on the cylinder body, wherein a through hole on the sucking disc is communicated with an inner cavity of the cylinder body, an air inlet hole and an air outlet hole which are communicated with the inner cavity of the cylinder body are arranged on the cylinder body, the air inlet hole is communicated with an air source, the air outlet hole is communicated with vacuumizing equipment provided with a compressor, when a workpiece is to be adsorbed, the vacuumizing equipment is started to vacuumize the inner cavity of the cylinder body, and when the workpiece is required to be put down, the air source charges air to the inner cavity of the cylinder body, and the current vacuum adsorption device can better finish the taking, placing and transferring of the workpiece, but the vacuumizing equipment is required to be provided with the compressor, so that the cost of the compressor is higher, and the whole vacuum adsorption device is higher in cost and complex in structure.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a vacuum adsorption device with simple structure and lower cost

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a vacuum adsorption device comprises a cylinder body and a piston;

the cylinder body comprises a columnar and hollow side wall, a first end wall positioned at one end of the side wall, a second end wall positioned at the other end of the side wall, and a partition plate positioned inside the side wall and arranged between the first end wall and the second end wall; the partition board, the first end wall and the side wall jointly enclose a first cavity, and the partition board, the second end wall and the side wall jointly enclose a second cavity; the side wall is provided with a vent hole for communicating the first cavity with the outside and two air inlet interfaces for communicating the second cavity, and the two air inlet interfaces are spaced a certain distance along the length direction of the side wall; the first end wall is provided with a through hole;

the piston comprises a first sealing plate, a second sealing plate and a connecting rod, the peripheries of the first sealing plate and the second sealing plate are in airtight fit with the inner surface of the side wall, the connecting rod is movably connected to the partition plate in a penetrating mode, two ends of the connecting rod extend into the first cavity and the second cavity respectively, and two ends of the connecting rod are fixedly connected with the first sealing plate and the second sealing plate respectively; the first sealing plate is arranged in the first cavity and can slide between the first end wall and the vent hole; the second sealing plate is arranged in the second cavity and can slide between the two air inlet interfaces.

The first sealing plate and/or the second sealing plate are/is fixed on the connecting rod through bolts.

The partition plate is located at an intermediate position in the longitudinal direction of the side wall.

The vent and one of the air inlet interfaces are respectively positioned at two sides of the partition board, and the other air inlet interface is positioned at the other end of the side wall.

The inner surface both ends of lateral wall are provided with a step portion respectively, and the part that the inner surface of lateral wall is located the step portion outside is provided with a draw-in groove, and the inner surface of first end wall and second end wall is supported respectively and is propped on the step portion, and the card is equipped with a jump ring respectively in two draw-in grooves, and two jump rings are pressed respectively and are established at the surface periphery of first end wall and second end wall.

The suction cup further comprises a connector which is connected in the through hole and communicated with the first cavity.

The through hole is arranged in the middle of the first end wall, an internal thread is arranged in the through hole, and an external thread matched with the internal thread is arranged outside the connector of the sucker.

The utility model has the beneficial effects that:

in the utility model, the interior of the cylinder body is divided into two independent cavities, and the two air inlet interfaces are respectively used for charging air into one of the cavities to drive the piston to move, so that the position of the piston in the other cavity is changed, the adsorption force is changed by utilizing the change of the size of the adsorption space after the piston moves, and the aim of adsorbing or putting down a workpiece is fulfilled, so that a vacuumizing device is not required to be configured, a compressor is not required to be configured, the structure of the vacuum adsorption device is simplified, and the equipment cost is reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a cross-sectional view of the present utility model.

Detailed Description

The utility model is further described below with reference to the drawings and detailed description:

as shown in fig. 1 and 2, the vacuum adsorption device of the present utility model comprises a cylinder 10 and a piston 20, wherein the cylinder 10 comprises a side wall 11, a first end wall 12, a second end wall 13 and a partition plate 14, the side wall 11 is of a hollow columnar structure, two ends of the side wall 11 are provided with openings, the first end wall 12 is covered at the opening at one end of the side wall 11, the second end wall 13 is covered at the opening at the other end of the side wall 11, and the partition plate 14 is positioned inside the side wall 11 and is arranged between the first end wall 12 and the second end wall 13; the partition 14, the first end wall 12 and the side wall 11 jointly enclose a first cavity A, and the partition 14, the second end wall 13 and the side wall 11 jointly enclose a second cavity B; the side wall 11 is provided with a vent 111 for communicating the first cavity A with the outside, an air inlet port 112 for communicating with the second cavity B, and an air inlet port 113 for communicating with the second cavity B, wherein the air inlet port 112 and the air inlet port 113 are arranged at a certain distance along the length direction of the side wall 11, the air inlet port 112 and the air inlet port 113 are communicated with an air source, and the second cavity B can be inflated by the air inlet port 112 and the air inlet port 113 respectively. A through hole 121 is provided in the first end wall 12; the piston 20 includes a first sealing plate 21, a second sealing plate 22, and a connecting rod 23, the first sealing plate 21 and the second sealing plate 22 are hermetically matched with the inner surface of the side wall 11, the first sealing plate 21 is arranged in the first cavity a and can slide between the first end wall 12 and the vent hole 111, and the second sealing plate 22 is arranged in the second cavity B and can slide between the air inlet interface 112 and the air inlet interface 113; the movable cross-connection of the connecting rod 23 is arranged on the partition plate 14, two ends of the connecting rod 23 extend into the first cavity A and the second cavity B respectively, the first sealing plate 21 is fixed at one end of the connecting rod 23, the second sealing plate 22 is fixed at the other end of the connecting rod 23, the connecting rod 23 is cross-connected in a preset hole on the partition plate 14, the hole on the partition plate 14 can be utilized to guide the connecting rod 23, and deflection of the piston 20 during movement is avoided, so that air leakage at the matched positions of the first sealing plate 22, the second sealing plate 23 and the inner surface of the side wall 11 is prevented.

When the workpiece is sucked, the air inlet port 112 charges air into the second cavity B, the second sealing plate 22 is pushed to move towards the direction approaching to the second end wall 13, then the first sealing plate 21 moves towards the direction departing from the first end wall 12, air between the first sealing plate 21 and the partition 14 is discharged from the vent hole 111 under pressure, the space between the first sealing plate 21 and the first end wall 12 is gradually increased, a vacuum cavity communicated with the through hole 121 is formed, and then the workpiece is sucked through the through hole 121 and can be transferred; when the workpiece needs to be put down, the air inlet port 113 charges air into the second cavity B to push the second sealing plate 22 to move away from the second end wall 13, at this time, the first sealing plate 21 moves towards the position close to the first end wall 12, external air enters between the first sealing plate 21 and the partition 14 through the air vent 111, and when the first sealing plate 21 moves to a position close to the first end wall 12, the workpiece falls off from the through hole 121. In the utility model, the interior of the cylinder body is divided into two independent cavities, and the two air inlet interfaces are respectively used for charging air into one of the cavities to drive the piston to move, so that the position of the piston in the other cavity is changed, the adsorption force is changed by utilizing the change of the size of the adsorption space after the piston moves, and the aim of adsorbing or putting down a workpiece is fulfilled, so that a vacuumizing device is not required to be configured, a compressor is not required to be configured, the structure of the vacuum adsorption device is simplified, and the equipment cost is reduced.

In a preferred embodiment, for easy installation, the second sealing plate 22 may be detachably fixed to the other end of the connecting rod 23, specifically, a bolt hole is provided at the other end of the connecting rod 23, and a bolt 24 is passed through the second sealing plate 22 and then inserted into the bolt hole to fix the second sealing plate 22 to the connecting rod 23; of course, in other embodiments, the first sealing plate 21 may be fixed to the connecting rod 23 by a bolt, or the first sealing plate 21 and the second sealing plate 22 may be fixed to both ends of the connecting rod 23 by a single bolt.

In order to increase the stroke of the piston 20 and reduce the length of the cylinder 10 as much as possible, the partition 14 may be provided at an intermediate position in the longitudinal direction of the side wall 11; the ventilation hole 111 and the air inlet port 112 are respectively located at two sides of the partition 14, so that the air inlet hole 111 and the air inlet port 112 are located as close to the partition 14 as possible, and the air inlet port 113 is located at the other end of the side wall 11 (i.e. the end of the side wall 11 where the second end wall 13 is mounted).

The first end wall 12 and the second end wall 13 are respectively fixed at two ends of the side wall 11 in a sealing manner in an assembling manner, for example, a step part 114 is arranged at one end of the inner surface of the side wall 11, a clamping groove 115 is arranged at the part, located outside the step part 114, of the inner surface of the side wall 11, the inner surface of the first end wall 12 abuts against the step part 114, a clamping spring 116 is clamped in the clamping groove 115, and the clamping spring 116 is pressed on the periphery of the outer surface of the first end wall 12, namely, the first end wall 12 is clamped and fixed by the clamping spring 116 and the step part 114. The second end wall 13 is mounted in the same manner as described above, and a stepped portion is provided at one end of the inner surface of the side wall 11, and the second end wall 13 is clamped and fixed by the clamp spring 117 and the stepped portion.

In a preferred embodiment, the utility model further comprises a suction cup 30, the suction cup 30 comprising a connector 31, the connector 31 being connected in the through hole 121 and communicating with the first cavity a. A through hole 121 is provided in the middle of the first end wall 12, and an internal thread is provided in the through hole 121, and an external thread is provided outside the joint 31 of the suction cup 30, the external thread being matched with the internal thread to screw the joint 31 of the suction cup 30 in the through hole 121.

The foregoing is merely a preferred embodiment of the utility model, which has been described in further detail in connection with specific preferred embodiments thereof, and it is not intended that the utility model be limited to these embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The vacuum adsorption device is characterized by comprising a cylinder body and a piston;

2. The vacuum adsorption apparatus of claim 1, wherein the first sealing plate and/or the second sealing plate are secured to the connecting rod by bolts.

3. The vacuum adsorption apparatus of claim 1, wherein the barrier is located at a central location along the length of the sidewall.

4. A vacuum adsorption apparatus according to claim 3 wherein the vent and one of the inlet ports are located on either side of the partition and the other inlet port is located on the other end of the side wall.

5. The vacuum adsorption device of claim 1, wherein the two ends of the inner surface of the side wall are respectively provided with a step part, the part of the inner surface of the side wall, which is positioned outside the step part, is provided with a clamping groove, the inner surfaces of the first end wall and the second end wall are respectively propped against the step part, a clamping spring is respectively clamped in the two clamping grooves, and the two clamping springs are respectively pressed on the peripheral edges of the outer surfaces of the first end wall and the second end wall.

6. The vacuum chuck as in claim 1, further comprising a suction cup, the suction cup including a connector, the connector being coupled in the through hole and in communication with the first chamber.

7. The vacuum suction device as claimed in claim 6, wherein the through hole is provided in the middle of the first end wall, and an internal thread is provided in the through hole, and an external thread matching the internal thread is provided at the outside of the joint of the suction cup.