Vacuum adsorption positioning jig for plate-shaped piece

Abstract

The utility model discloses a vacuum adsorption positioning jig for platy parts, which relates to the technical field of positioning jigs and comprises a bottom plate and a plurality of positioning grooves arranged at the top of the bottom plate and used for placing the platy parts, and vacuum channels are arranged on the inner bottom walls of the positioning grooves. A plurality of vent holes corresponding to the vacuum channels in number are formed in the bottom plate and communicated with the vacuum channels respectively, and the vacuum channels comprise a plurality of transverse strip channels and a plurality of vertical strip channels which are communicated with one another; and by arranging the vacuum channel, the adsorption effect of the whole jig on the plate-shaped piece is guaranteed.

Description

Technical Field

[0001] The utility model relates to a positioning fixture, and more specifically, to a vacuum adsorption positioning fixture for plate-shaped parts. Background Art

[0002] The working principle of a vacuum chuck is based on the difference in atmospheric pressure and the generation of vacuum suction. When the vacuum generator starts to work, the vacuum pump begins to extract the air between the chuck and the outside world, creating a lower pressure inside the chuck to form a vacuum environment. At this time, the pressure difference between the chuck and the object surface causes the vacuum suction;

[0003] When the existing vacuum chuck is used to adsorb a plate-shaped part, due to the relatively large cross-section of the plate-shaped part itself, when using a single chuck for adsorption, the adsorption surface is small, the adsorption is unstable, and it is easy for the plate-shaped part to fall off. Therefore, multiple groups of chucks are needed for adsorption. However, when using multiple groups of chucks, the consumables are more and the maintenance cost is higher.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Summary of the Utility Model

[0005] To solve the above technical problems, the utility model provides a vacuum adsorption positioning fixture for plate-shaped parts.

[0006] The technical solution of the utility model is as follows:

[0007] A vacuum adsorption positioning fixture for plate-shaped parts, including a bottom plate and a plurality of positioning grooves opened on the top of the bottom plate for placing plate-shaped parts. A vacuum channel is opened on the inner bottom wall of the positioning groove. A plurality of air vent holes corresponding to the number of vacuum channels are opened on the bottom plate and are respectively communicated with the vacuum channels. The vacuum channel includes a plurality of horizontal strip channels and a plurality of vertical strip channels that are communicated with each other.

[0008] The utility model is further provided that a first embedding groove matched with the plate-shaped part is opened on the inner bottom wall of the positioning groove. The cross-section of the first embedding groove is annular. The vacuum channel is arranged in the first embedding groove, and a first sealing member is embedded in the first embedding groove.

[0009] The utility model is further provided that the top of the first sealing member is provided with symmetrically arranged protruding parts. The protruding parts extend out of the first embedding groove, and there is a spacing between adjacent protruding parts.

[0010] The utility model is further provided that a second embedding groove corresponding to the through hole of the plate-shaped part is opened on the inner bottom wall of the positioning groove, and a second sealing member is embedded in the second embedding groove.

[0011] The utility model is further provided that one end of the air vent hole far from the vacuum channel extends along the thickness direction of the bottom plate to the bottom surface of the bottom plate and is open.

[0012] The utility model is further arranged such that lifting members inserted horizontally in a symmetric manner are disposed at the bottom of the bottom plate, and the ventilation holes are located between the two lifting members.

[0013] The utility model is further arranged such that a slider is fixedly connected to the top of the lifting member, a sliding groove which is in sliding fit with the slider is formed at the bottom of the bottom plate, and the cross sections of the slider and the sliding groove are both in the shape of a dovetail.

[0014] The beneficial technical effects of the utility model are as follows:

[0015] By providing the positioning groove, preliminary positioning of the plate-shaped member can be performed, and the positioning is more stable;

[0016] By providing the vacuum channels, the vacuum channels include a plurality of horizontal strip channels and a plurality of vertical strip channels, and the plate-shaped member is adsorbed by means of vacuum pumping through the vacuum channels, with a high coverage rate, ensuring the adsorption effect of the overall fixture on the plate-shaped member, making the adsorption more stable, avoiding the situation of unstable adsorption resulting in the offset of the plate-shaped member, thereby ensuring the later processing accuracy and the product quality;

[0017] Each vacuum channel is respectively communicated with the corresponding ventilation hole, and only by pumping vacuum through the corresponding ventilation hole for the vacuum channel can the adsorption be completed, reducing the resource utilization and also reducing the occurrence of mistakes. Description of the Drawings

[0018] Figure 1 is a structural schematic diagram of the utility model;

[0019] Figure 2 is an exploded view of the utility model;

[0020] Figure 3 is Figure 2 an enlarged view of part A in

[0021] In the figure, 1, bottom plate; 11, positioning groove; 12, vacuum channel; 13, ventilation hole; 2, first embedding groove; 21, first sealing member; 211, protruding portion; 3, second embedding groove; 31, second sealing member; 4, lifting member; 41, slider; 5, sliding groove. Detailed Description of the Embodiment

[0022] In order to be able to more clearly understand the technical means of the utility model and implement it in accordance with the content of the specification, the following further describes the detailed implementation manners of the utility model in combination with the drawings and embodiments. The following embodiments are used to illustrate the utility model but not to limit the scope of the utility model.

[0023] A vacuum adsorption positioning fixture for a plate-shaped member, as Figures 1 - 3As shown in the figure, it includes a bottom plate 1 and two positioning grooves 11 opened on the top of the bottom plate 1 for placing plate-shaped parts. A vacuum channel 12 is opened on the inner bottom wall of the positioning groove 11. Two air vents 13 are opened on the bottom plate 1 and are respectively communicated with the vacuum channels 12 in the two positioning grooves 11. The setting of the positioning grooves 11 can position the plate-shaped parts, thereby initially restricting the displacement of the plate-shaped parts in the horizontal direction and ensuring the stability of the plate-shaped parts; one end of the air vent 13 away from the vacuum channel 12 extends along the thickness direction of the bottom plate 1 to the bottom surface of the bottom plate 1 and is open. Connect the vacuum pump to the air vent 13 through a trachea. Since the length direction of the air vent 13 is consistent with the thickness direction of the bottom plate 1, the length of the air vent 13 is the shortest, and the air extraction effect is maximized. When the vacuum channel 12 is evacuated to a vacuum state by the vacuum pump, a good adsorption effect is achieved.

[0024] The vacuum channel 12 is composed of a number of horizontal strip channels and a number of vertical strip channels distributed in an array, and the horizontal strip channels and the vertical strip channels are mutually communicated. The end of the air vent 13 extends to the junction of the horizontal strip channel and the vertical strip channel. By setting a number of horizontal strip channels and a number of vertical strip channels, the coverage of the vacuum channel 12 is improved, thereby ensuring the adsorption effect of the overall fixture on the plate-shaped parts and making the adsorption more stable.

[0025] A first embedded groove 2 matched with the plate-shaped part is opened on the inner bottom wall of the positioning groove 11. The cross-section of the first embedded groove 2 is annular. The vacuum channel 12 is arranged in the first embedded groove 2. A first seal 21 is embedded in the first embedded groove 2. The height of the first seal 21 is greater than the depth of the first embedded groove 2. The first seal 21 is made of rubber material. The rubber material has good elasticity and good deformation effect. Symmetrically arranged protruding parts 211 are integrally formed on the top of the first seal 21. The protruding parts 211 are also annular. The protruding parts 211 protrude out of the first embedded groove 2. There is a spacing between adjacent protruding parts 211. By setting the protruding parts 211, since the width of the protruding parts 211 itself is smaller than the width of the first seal 21, the deformation effect of the protruding parts 211 is expanded, and the protruding parts 211 protrude out of the first embedded groove 2. When the plate-shaped part is placed in the positioning groove 11 and adsorbed, the plate-shaped part presses against the inner bottom wall of the positioning groove 11, resulting in the deformation of the protruding parts 211, ensuring the sealing effect, and the protruding parts 211 are set to two, further ensuring the sealing effect.

[0026] A second embedded groove 3 corresponding to the through hole of the plate-shaped part is opened on the inner bottom wall of the positioning groove 11. The second embedded groove 3 is not communicated with the vacuum channel 12. A second seal 31 is embedded in the second embedded groove 3. When the plate-shaped part is placed on the fixture, the second seal 31 can block the through hole on the plate-shaped part, thereby ensuring the sealing performance and further ensuring the vacuum adsorption effect of the entire positioning fixture.

[0027] Lifting members 4 inserted horizontally are symmetrically arranged at the bottom of the bottom plate 1. The ventilation holes 13 are located between the two lifting members 4. A slider 41 is fixedly connected to the top of the member. A sliding groove 5 that is slidably matched with the slider 41 is provided at the bottom of the bottom plate 1. The cross-sections of the slider 41 and the sliding groove 5 are both dovetail-shaped. By providing the slider 41 and the sliding groove 5, the movement track of the lifting member 4 is restricted, and it is set to be dovetail-shaped, thereby restricting the displacement of the lifting member 4 in the thickness direction of the bottom plate 1, thus ensuring the insertion effect. Moreover, by providing the lifting member 4 and fixing it on the device through the lifting member 4, a gap is formed between the bottom plate 1 and the surface of the device, making it more convenient to connect the air pipe to the ventilation hole 13 and ensuring the ventilation effect.

[0028] Working principle: Place the plate-shaped member in the positioning groove 11, use the positioning groove 11 to perform preliminary positioning on the plate-shaped member, connect the vacuum pump from the bottom of the bottom plate 1 to the ventilation hole 13 through the air pipe, activate the vacuum pump, and evacuate the vacuum channel 12 to achieve the adsorption of the plate-shaped member. Use the jig for adsorption. With the high-coverage vacuum channel 12, the adsorption effect on the plate-shaped member is ensured, the adsorption is more stable, and the positioning is more stable, thus ensuring the later processing accuracy and the product quality.

[0029] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A vacuum adsorption positioning fixture for a plate-shaped part, characterized in that: It includes a bottom plate (1) and a number of positioning grooves (11) opened on the top of the bottom plate (1) for placing plate-shaped parts. A vacuum channel (12) is opened on the inner bottom wall of the positioning groove (11). A number of ventilation holes (13) corresponding to the number of vacuum channels (12) are opened on the bottom plate (1) and are respectively communicated with the vacuum channels (12). The vacuum channel (12) includes a number of horizontal strip channels and a number of vertical strip channels that are interconnected.

2. The plate-shaped part vacuum adsorption positioning fixture according to claim 1, characterized in that: A first fitting groove (2) that cooperates with the plate-shaped part is opened on the inner bottom wall of the positioning groove (11). The cross-section of the first fitting groove (2) is annular. The vacuum channel (12) is arranged in the first fitting groove (2). A first seal (21) is fitted in the first fitting groove (2).

3. The plate-shaped vacuum adsorption positioning jig according to claim 2, wherein: Convex portions (211) that are symmetrically arranged with each other are provided on the top of the first seal (21). The convex portions (211) extend out of the first fitting groove (2), and there is a gap between adjacent convex portions (211).

4. The plate-shaped part vacuum adsorption positioning fixture according to claim 1, wherein: A second fitting groove (3) corresponding to the through hole of the plate-shaped part is opened on the inner bottom wall of the positioning groove (11). A second seal (31) is fitted in the second fitting groove (3).

5. The vacuum adsorption positioning fixture for the plate-shaped part according to claim 1, characterized in that: One end of the ventilation hole (13) away from the vacuum channel (12) extends to the bottom surface of the bottom plate (1) along the thickness direction of the bottom plate (1) and is open.

6. The plate-shaped part vacuum adsorption positioning fixture according to claim 1, characterized in that: Lifting parts (4) that are inserted horizontally in a symmetric manner are arranged at the bottom of the bottom plate (1). The ventilation holes (13) are located between the two lifting parts (4).

7. The plate-shaped vacuum adsorption positioning jig according to claim 6, characterized in that: A slider (41) is fixedly connected to the top of the lifting part (4). A sliding groove (5) that slidably cooperates with the slider (41) is opened on the bottom of the bottom plate (1). The cross-sections of the slider (41) and the sliding groove (5) are both dovetail-shaped.

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