CN218953792U

CN218953792U - Vacuum chuck device

Info

Publication number: CN218953792U
Application number: CN202223404098.6U
Authority: CN
Inventors: 熙鹏; 叶绍波; 李红波; 张燕青
Original assignee: Shanxi Agricultural University
Current assignee: Shanxi Agricultural University
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-05-02
Anticipated expiration: 2032-12-19

Abstract

The utility model discloses a vacuum chuck device, which comprises a chuck main body, a pressing ring, a connecting rod, two first pressing rings, two second pressing rings and four push rods, wherein the chuck main body comprises a chuck and a chuck column; the compression ring and the connecting ring below the compression ring are sleeved on the sucker column and are connected through a connecting rod; the first pressurizing rings and the second pressurizing rings are alternately arranged along the circumferential direction of the sucker; the four push rods are uniformly distributed along the circumferential direction of the sucker column, one end of each of the two symmetrically distributed push rods is fixedly connected with the connecting ring, and the other end of each of the two symmetrically distributed push rods is fixedly connected with the first pressing ring through the connecting sleeve; one end of each of the other two symmetrically distributed push rods is fixedly connected with the connecting ring, and the other end of each of the other two symmetrically distributed push rods is fixedly connected with the second pressing ring through the connecting sleeve; the four connecting sleeves are respectively embedded in the four sliding grooves of the sucker. The utility model can lead the suction cup to achieve lower vacuum degree and better attaching effect with the suction surface when in suction, thereby leading the suction cup to achieve optimal suction effect.

Description

Vacuum chuck device

Technical Field

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

Background

The vacuum chuck is one of the vacuum equipment actuators. Generally, the method for gripping products by using a vacuum chuck is the cheapest method, and is widely applied to various vacuum gripping devices, such as the industries of building, paper industry, printing, glass and the like, to realize the task of gripping and conveying thin and light articles such as glass, paper and the like.

However, the existing suction cup is not tightly adsorbed with the suction object, has residual gas, influences the adsorption force, and is easy to separate from the suction object.

Therefore, it is a problem to be solved by those skilled in the art to provide a vacuum chuck device with good suction effect.

Disclosure of Invention

In view of the above, the present utility model provides a vacuum chuck device capable of improving adsorptivity.

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

a vacuum chuck apparatus comprising:

the sucker comprises a sucker body, a sucker rod and a sucker rod, wherein the sucker body comprises a sucker and a sucker rod which are connected into a whole; the sucker is provided with four sliding grooves which are uniformly distributed along the circumferential direction;

the compression ring is sleeved on the sucker column and is in sliding connection with the sucker column;

the connecting ring is sleeved on the sucker column and is in sliding connection with the sucker column, and the connecting ring is positioned below the compression ring;

the two ends of the connecting rod are fixedly connected with the compression ring and the connecting ring respectively;

the two first pressing rings and the two second pressing rings are in a fan shape, and the length of the first pressing rings is larger than that of the second pressing rings; the first pressurizing rings and the second pressurizing rings are alternately arranged along the circumferential direction of the sucker;

four push rods which are made of elastic materials; the four push rods are uniformly distributed along the circumferential direction of the sucker column, one end of each of the two symmetrically distributed push rods is fixedly connected with the connecting ring, and the other end of each of the two symmetrically distributed push rods is fixedly connected with the middle part of the first pressing ring through a connecting sleeve; one end of each of the other two symmetrically distributed push rods is fixedly connected with the connecting ring, and the other end of each push rod is fixedly connected with the middle part of the second pressing ring through a connecting sleeve; the four connecting sleeves are respectively embedded in the four sliding grooves and are connected with the sliding grooves in a sliding manner.

By adopting the technical scheme, the utility model has the beneficial effects that:

residual gas in the middle of the sucker can be extruded, so that the sucker can achieve lower vacuum degree and better attaching effect with an adsorption surface during adsorption, and the sucker can achieve optimal adsorption effect.

Further, the number of the connecting rods is four, the four connecting rods are uniformly distributed along the circumferential direction of the sucker column, and two adjacent connecting rods are spaced by 90 degrees.

Further, two adjacent push rods are spaced by 90 degrees, and the push rods and the adjacent connecting rods are staggered by 45 degrees in the circumferential direction.

Further, the sucker rod clamping device further comprises four triangular clamping blocks, wherein the four triangular clamping blocks are fixed at the middle lower part of the outer side face of the sucker rod, are uniformly distributed along the circumferential direction of the sucker rod, and correspond to the push rod in position.

The technical scheme has the beneficial effect that the sucker is attached to the adsorption surface more tightly.

Furthermore, the triangular clamping blocks and the connecting rings are made of rubber materials.

Further, a ring groove is formed in the middle upper portion of the outer side face of the sucker column.

The beneficial effect that adopts the further technical scheme to produce is that the resume position of go-between is injectd.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a vacuum chuck device in a normal state according to the present utility model;

FIG. 2 is a schematic perspective view showing the adsorption state of a vacuum chuck device according to the present utility model;

FIG. 3 is a schematic diagram showing the structure of the change of the bending angle of the push rod in the adsorption state of the vacuum chuck device;

fig. 4 is a diagram showing the stress analysis of the vacuum chuck device in the adsorption state.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-4, the embodiment of the utility model discloses a vacuum chuck device, which comprises a chuck main body, a pressing ring 3, a connecting ring 4, a connecting rod 5, two first pressing rings 6, two second pressing rings 7 and four push rods 8, wherein the chuck main body comprises a chuck 1 and a chuck column 2 which are connected into a whole; the sucker 1 is provided with four sliding grooves 11 which are uniformly distributed along the circumferential direction and are distributed along the radial direction; the compression ring 3 is sleeved on the sucker column 2 and is connected with the sucker column in a sliding manner; the connecting ring 4 is sleeved on the sucker column 2 and is in sliding connection with the sucker column, and the connecting ring 4 is positioned below the pressure ring 3; two ends of the connecting rod 5 are fixedly connected with the compression ring 3 and the connecting ring 4 respectively; the two first pressurizing rings 6 and the two second pressurizing rings 7 are in a sector ring shape, and the length of the first pressurizing rings 6 is longer than that of the second pressurizing rings 7; the first pressurizing rings 6 and the second pressurizing rings 7 are alternately arranged along the circumferential direction of the sucker 1; the four push rods 8 are all made of elastic materials; the four push rods 8 are uniformly distributed along the circumferential direction of the sucker column 2, one end of each of the two symmetrically distributed push rods 8 is fixedly connected with the connecting ring 4, and the other end of each of the two symmetrically distributed push rods is fixedly connected with the middle part of the first pressurizing ring 6 through the connecting sleeve 9; one end of each of the other two symmetrically distributed push rods 8 is fixedly connected with the connecting ring 4, and the other end is fixedly connected with the middle part of the second pressing ring 7 through the connecting sleeve 9; in this embodiment, the connecting sleeves 9 are integrally connected with the push rod 8, and the four connecting sleeves 9 are respectively embedded in the four sliding grooves 11 and are in sliding connection with the sliding grooves. The utility model can extrude the residual gas in the middle of the sucker 1, so that the sucker 1 achieves lower vacuum degree and better attaching effect with the adsorption surface when in adsorption, thereby achieving the best adsorption effect of the sucker 1.

Specifically, the number of the connecting rods 5 is four, the four connecting rods 5 are uniformly distributed along the circumferential direction of the sucker column 2, and two adjacent connecting rods 5 are spaced by 90 degrees.

Specifically, two adjacent push rods 8 are spaced by 90 °, and the push rods 8 are staggered 45 ° from the adjacent connecting rods 5 in the circumferential direction.

Specifically, the sucker rod clamping device further comprises four triangular clamping blocks 10, wherein the four triangular clamping blocks 10 are fixed at the middle lower part of the outer side face of the sucker rod 2 and are uniformly distributed along the circumferential direction of the sucker rod 2, and the triangular clamping blocks 10 correspond to the push rod 8 in the circumferential direction.

Specifically, the triangular clamping block 10 and the connecting ring 4 are made of rubber.

Specifically, the middle upper part of the outer side surface of the sucker column 2 is provided with a ring groove 21.

The vacuum sucker adsorption process comprises the following steps:

firstly, placing a sucker 1 on the surface of an adsorbate, ensuring that the bottom surface of the sucker 1 is contacted with the surface of the adsorbate, lightly pressing the top of a sucker column 2, and ensuring that the middle position of the bottom surface of the sucker 1 is firstly contacted with the surface of the adsorbate;

then the pressing ring 3 is pushed to slide downwards along the sucker column 2, and as the pressing ring 3 is fixedly connected with the connecting ring 4 through 4 connecting rods 5, the connecting ring 4 has a certain elasticity along with the increasing force for pushing the pressing ring 3, and the connecting ring 4 is out of the annular groove 21 and slides downwards along the sucker column 2;

next, because the connecting ring 4 is fixedly connected with the tops of the 4 push rods 8, the connecting sleeve 9 at the bottom of the push rods 8 is driven to slide outwards along the sliding groove 11, and meanwhile, the connecting sleeve 9 respectively carries the first pressurizing ring 6 and the second pressurizing ring 7 to slide outwards, because the push rods 8 are made of elastic materials, in the embodiment, elastic plastics are adopted, so that have a certain bending degree, in the downward movement process of the push rods, the push rods 8 can generate downward bending deformation (the included angle between the connecting ring 4 and the push rods 8 is alpha when the suction cup 1 starts to adsorb, the included angle alpha is changed to be beta along with the continuous downward pressing of the pressure rings 3, but the connecting ring 4 and the push rods 8 are fixedly connected, so that the push rods 8 can bend downwards as shown by a dotted line in fig. 3), the first pressurizing ring 6 and the second pressurizing ring 7 connected with the connecting sleeve 8 generate a downward pressure on the upper surface of the suction cup 1, the downward pressure can generate a pushing extrusion effect from the center to the edge on the upper surface of the suction cup 1 along with the outward sliding of the first pressurizing ring 6 and the second pressurizing ring 7, the suction cup 1 can achieve a better pushing effect from the center to the upper surface of the suction cup 1, and the best adsorption effect can be achieved;

finally, the pressing ring 3 is pushed until the connecting ring 4 is clamped to the bottom surface of the triangular clamping block 10, and at the moment, the vacuum chuck finishes adsorption. In this process, since the push rod 8 is always in a downward bending deformation state when the suction cup 1 is adsorbed, the push rod 8 at this time has a tendency to recover to a straight rod, but due to the prevention of the triangular clamping block 10, an upward force is generated on the triangular clamping block 10, as shown in fig. 4, so that an upward tensile force is formed on the central area of the suction cup, meanwhile, a downward extrusion force is generated on the edge of the suction cup 1 through the action of the first compression ring 6 and the second compression ring 7, so that the suction cup 1 is attached to the adsorption surface more tightly, an intermediate pulling and edge compression effect is finally formed, good adsorption is formed by using the suction cup, the first compression ring 6 and the second compression ring 7 just encircle to form a circle when in an open state, a pushing action is formed on the circumferential direction of 360 degrees of the suction cup, and no gap is left in the whole circumferential direction.

The vacuum chuck desorption process comprises the following steps:

pressing the triangular clamping block 10, since the triangular clamping block 10 is made of rubber, certain elastic deformation can be generated, the connecting ring 4 also has certain elasticity, and the push rod 8 has a trend of recovering to a straight rod, so that the connecting ring 4 can be released from the limit of the triangular clamping block 10, and then moves upwards along the sucker column 2 until returning to the ring groove 21.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vacuum chuck apparatus, comprising:

2. A vacuum chuck device as in claim 1, wherein said number of said connecting rods is four, said four connecting rods being evenly distributed along the circumference of said chuck post, adjacent two of said connecting rods being spaced 90 ° apart.

3. A vacuum chuck assembly according to claim 2 wherein adjacent two of said pushers are spaced 90 ° apart, said pushers being circumferentially offset 45 ° from their adjacent connecting rods.

4. The vacuum chuck device of claim 1, further comprising four triangular clamping blocks, wherein the four triangular clamping blocks are all fixed at the middle lower part of the outer side surface of the chuck column and are uniformly distributed along the circumferential direction of the chuck column, and the triangular clamping blocks correspond to the push rod.

5. The vacuum chuck assembly of claim 4, wherein the triangular fixture block and the connecting ring are both rubber.

6. The vacuum chuck assembly of claim 1, wherein the chuck post has a ring groove formed in the upper middle of the outer side surface.