Composite vacuum suction tool

Abstract

The utility model relates to a composite vacuum sucker, which belongs to the technical field of mechanical equipment and comprises a body, two ends of the body are respectively provided with an air inlet end cover and an exhaust end cover, the body is provided with an inner cavity, a vacuum generating mechanism is arranged in the inner cavity, the upper end face of the body is provided with a mounting groove, and the lower end face of the body is provided with a plurality of block-shaped sucker groups. The non-return floater is arranged in the suction cup set, the suction cup which does not make contact with a workpiece in the working process is blocked, leakage of vacuum flow is prevented, the adsorption efficiency is optimized, adsorption is more stable, certain angle compensation is formed by the installation block and the installation groove, the suction cup can be prevented from hard landing on the surface of the workpiece, and the service life of the suction cup is prolonged. And meanwhile, the adsorption angle is more fit, the structure is simple, use is convenient, and efficiency is higher.

Description

Technical Field

[0001] The utility model relates to a suction tool, in particular to a composite vacuum suction tool, belonging to the technical field of mechanical equipment. Background Art

[0002] In the process of pipeline production, workpieces are processed on different lathes. When multiple processing procedures are involved, the workpieces need to be transferred. In the prior art, mechanical claws are generally used to complete the transfer of workpieces to save labor costs. However, the surfaces of some workpieces are complex, and the materials of some workpieces are fragile, making it difficult to complete the transfer through the clamping and fixing method of mechanical claws.

[0003] For this reason, a suction cup type fixture is provided in the prior art. A plurality of suction cups are distributed in a dot matrix on the contact surface with the workpiece. By bringing the suction cups into contact with the workpiece and forming a vacuum cavity for adsorption and fixation, it can adapt to the fixation of non-standard shaped workpieces, and its fixation method does not rely on clamping and is friendly to workpieces with fragile materials.

[0004] However, the existing suction cup type fixture has a complex structure, low vacuum generation efficiency, weak vacuum suction force, and is prone to workpiece detachment. Summary of the Invention

[0005] In view of this, the utility model provides a composite vacuum suction tool to solve the above problems existing in the prior art.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] A composite vacuum suction tool includes a body. An air inlet end cover and an exhaust end cover are respectively arranged at both ends of the body. The body has an inner cavity, and a vacuum generating mechanism is arranged in the inner cavity. The air inlet end of the vacuum generating mechanism is communicated with the air inlet on the air inlet end cover, and the exhaust end of the vacuum generating mechanism is communicated with the exhaust port on the exhaust end cover through an extension pipe. An installation groove is formed on the upper end surface of the body, and a plurality of block-shaped suction cup groups are arranged on the lower end surface of the body. Each suction cup group includes a suction cup seat and a plurality of suction cups arranged in a dot matrix on the suction cup seat. The suction cups are communicated with the inner cavity through the suction cup seat and the air guide grooves formed on the lower end surface of the body;

[0008] The suction cup seat includes an upper cover plate and a lower cover plate. The suction cups are arranged on the lower end surface of the lower cover plate. The through holes in the middle of the suction cups form grooves on the upper end surface of the lower cover plate. A check float is arranged in the grooves, and the upper cover plate has air holes corresponding to the grooves.

[0009] On the basis of the above technical solution, the utility model can also be improved as follows.

[0010] Further, an I-shaped installation block is arranged in the installation groove, and the installation block has a movable space in the installation groove.

[0011] Further, a sealing protrusion is provided on the lower end face of the upper cover plate corresponding to the groove.

[0012] Further, a plum blossom groove is provided on the inner wall of the suction cup.

[0013] Further, a connecting groove is provided on the side wall of the main body.

[0014] Further, a silencer is provided on the exhaust port.

[0015] Further, the number of air inlets is multiple.

[0016] The beneficial effects of the present utility model are as follows:

[0017] In the suction cup group of the present utility model, a check float is provided to block the suction cups that do not contact the workpiece during operation, prevent the leakage of vacuum flow, optimize the adsorption efficiency, make the adsorption more stable, and the mounting block and the mounting groove form a certain angle compensation, which can prevent the suction cup from hard landing on the workpiece surface, and at the same time make the adsorption angle more fitting. The structure is simple, easy to use, and has higher efficiency. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a sectional view of the main body structure of the present utility model;

[0020] Figure 3 is a schematic diagram of the suction cup group structure of the present utility model;

[0021] Figure 4 is an exploded view of the suction cup group structure of the present utility model.

[0022] In the drawings, the list of components represented by each reference numeral is as follows:

[0023] 01, main body, 11, inner cavity, 12, mounting groove, 13, connecting groove, 02, air inlet end cover, 21, air inlet, 03, exhaust end cover, 31, silencer, 04, suction cup group, 41, suction cup, 42, upper cover plate, 43, lower cover plate, 44, sealing protrusion, 45, plum blossom groove, 05, mounting block. Detailed Embodiments

[0024] The principles and features of the present utility model are described below with reference to the drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0025] As Figures 1-3As shown in the figure, the composite vacuum suction device includes a main body 01. An air inlet end cover 02 and an exhaust end cover 03 are respectively provided at both ends of the main body 01. The main body 01 has an inner cavity 11. A vacuum generating mechanism is arranged in the inner cavity 11. The air inlet end of the vacuum generating mechanism is communicated with the air inlet 21 on the air inlet end cover 02, and the exhaust end of the vacuum generating mechanism is communicated with the exhaust port on the exhaust end cover 03 through an extension pipe. A T-shaped installation groove 12 is formed on the upper end surface of the main body 01. A plurality of block-shaped suction cup groups 04 are arranged on the lower end surface of the main body 01. The suction cup group 04 includes a suction cup 41 seat and a plurality of suction cups 41 arranged in a dot matrix on the suction cup 41 seat. The suction cups 41 are communicated with the inner cavity 11 through the suction cup 41 seat and the air guide groove formed on the lower end surface of the main body 01;

[0026] The suction cup 41 seat includes an upper cover plate 42 and a lower cover plate 43. The upper cover plate 42 and the lower cover plate 43 form a cavity to provide space for the check float to work. The suction cup 41 is arranged on the lower end surface of the lower cover plate 43. A through hole in the middle of the suction cup 41 forms a groove on the upper end surface of the lower cover plate 43. A check float is arranged in the groove. The upper cover plate 42 has an air hole corresponding to the groove.

[0027] In another embodiment of the present invention, an I-shaped installation block 05 is arranged in the installation groove 12. The installation block 05 has a movable space in the installation groove 12 and is arranged in the installation groove 12 and connected to the mechanical wall. When handling a workpiece, a certain angle compensation will be formed when initially contacting the workpiece, which can prevent the suction cup group 04 from hard landing and damaging the workpiece, and at the same time make the angle more fitting to the workpiece.

[0028] In another embodiment of the present invention, a sealing protrusion 44 is arranged on the lower end surface of the upper cover plate 42 corresponding to the groove, that is, the sealing protrusion 44 is arranged on the lower end surface of the air hole. After the upper cover plate 42 and the lower cover plate 43 are buckled, the sealing protrusion 44 is arranged in the groove and does not affect the movement of the check float, which can increase the airtightness and reduce the leakage of vacuum flow.

[0029] In another embodiment of the present invention, a plum blossom groove 45 is arranged on the inner wall of the suction cup 41. The structure of the plum blossom groove 45 can increase the reverse blowing function and prevent the introduction of dust and blockage.

[0030] In another embodiment of the present invention, a connection groove 13 is formed on the side wall of the main body 01.

[0031] In another embodiment of the present invention, a silencer 31 is arranged on the exhaust port to reduce the exhaust noise.

[0032] In another embodiment of the present invention, the number of the air inlets 21 is multiple, and they can be respectively used as a positive pressure air inlet 21 and a negative pressure detection port.

[0033] When the composite vacuum sucker of the present utility model is in use, the vacuum generating mechanism is connected to the circuit of the robotic arm. When clamping a workpiece (such as a PCB board), angle compensation is formed through the mounting block 05 to avoid hard landing. After contacting the workpiece, the vacuum generating mechanism is powered on and opened, exhausts air through the exhaust port to form a vacuum in the inner cavity 11, and makes the suction cup 41 form a vacuum through the air guide groove on the bottom surface of the body 01 to adsorb the workpiece. The suction cup 41 that does not contact the workpiece is blocked by the check float to prevent the leakage of vacuum flow.

[0034] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. 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 composite vacuum gripper, characterized in that: The invention comprises a body, wherein an air inlet cover and an exhaust cover are respectively arranged at two ends of the body, the body has an inner cavity, a vacuum generating mechanism is arranged in the inner cavity, the air inlet end of the vacuum generating mechanism is connected to the air inlet port on the air inlet cover, and the exhaust end of the vacuum generating mechanism is connected to the exhaust port on the exhaust cover through an extension pipe, a mounting groove is provided on the upper end surface of the body, a plurality of block-shaped suction cup groups are arranged on the lower end surface of the body, the suction cup group comprises a suction cup seat and a plurality of suction cups arranged in a dot matrix on the suction cup seat, and the suction cup is connected to the inner cavity through the suction cup seat and the air guide groove provided on the lower end surface of the body; The suction cup seat includes an upper cover plate and a lower cover plate, the suction cup is arranged on the lower end surface of the lower cover plate, the through hole in the middle of the suction cup forms a groove on the upper end surface of the lower cover plate, a check float is provided in the groove, and the upper cover plate has an air hole corresponding to the groove.

2. The composite vacuum gripper according to claim 1, characterized in that: An I-shaped mounting block is arranged in the mounting groove, and the mounting block has a movable space in the mounting groove.

3. The composite vacuum gripper according to claim 1, characterized in that: A sealing protrusion is arranged on the lower end surface of the upper cover plate corresponding to the groove.

4. The composite vacuum gripper according to claim 1, characterized in that: The inner wall of the suction cup is provided with a plum blossom groove.

5. The composite vacuum gripper according to any one of claims 1 to 4, characterized in that: A connecting groove is provided on the side wall of the body.

6. The composite vacuum gripper according to any one of claims 1 to 4, characterized in that: A muffler is arranged on the exhaust port.

7. The composite vacuum gripper according to any one of claims 1 to 4, characterized in that: The number of the air inlets is multiple.

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