Concave friction vacuum chuck

Abstract

The utility model discloses a concave friction vacuum chuck which comprises a chuck body, a sealing ring edge is installed on the periphery of the bottom end of the chuck body, an anti-skid assembly is installed in the chuck body, a connector is installed at the top end of the chuck body, and an installation assembly is connected to the upper side of the connector. The anti-skid assembly comprises anti-skid strips annularly installed on the inner wall of the tray body and attaching grooves formed in the bottom ends of the anti-skid strips. The concave friction vacuum chuck has the advantages that the anti-skid assemblies are annularly installed on the chuck body, the bottom ends of the anti-skid assemblies are parallel to the bottom end of the chuck body, and therefore when the concave friction vacuum chuck is used, anti-skid strips in the anti-skid assemblies can be pressed on the surface of a workpiece with the uneven surface; and the attaching groove is in close contact with the surface of the workpiece after being expanded, so that the suction area of the vacuum chuck and the surface of the workpiece is effectively increased, the workpiece cannot slip or be staggered relative to the chuck body when meeting the sudden stop condition in the transfer process, and the risk that the workpiece falls off accidentally is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum suckers, in particular to a concave friction vacuum sucker. Background Art

[0002] A vacuum sucker, also known as a vacuum lifting device, is one of the actuators of vacuum equipment. Generally speaking, using a vacuum sucker to grasp products is one of the cheapest methods. There are various types of vacuum suckers. The suckers made of rubber can be operated at high temperatures. The suckers made of silicone rubber are very suitable for grasping products with rough surfaces; the suckers made of polyurethane are very durable. In addition, in actual production, if the suckers are required to have oil resistance, materials such as polyurethane, nitrile rubber or polymers containing vinyl can be considered to manufacture the suckers. At present, concave friction vacuum suckers are often used for adsorbing and transporting workpieces with uneven surfaces.

[0003] The existing concave friction vacuum sucker mainly consists of a flexible sucker, grooves opened on the inner wall of the flexible sucker, and a mounting component installed at the top end of the flexible sucker. Although the concave friction vacuum sucker with this structure can adsorb and transfer workpieces with uneven surfaces during use, due to the small area of the grooves on the concave friction vacuum sucker with this structure and the concentrated distribution at the lower part of the inner wall of the flexible disc, the adsorption area of the vacuum sucker is small when adsorbing workpieces with uneven surfaces, which easily causes the workpiece to slide laterally relative to the vacuum sucker when suddenly stopping during the workpiece transfer process, and then leads to the risk of accidental dropping of the workpiece. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] The technical problem to be solved by the utility model is to provide a concave friction vacuum sucker that can effectively avoid the sliding and dropping of workpieces with uneven surfaces during adsorption and transfer by increasing the contact area, aiming at the current situation of the existing technology.

[0006] (2) Technical Solutions

[0007] The utility model is realized through the following technical solutions: The utility model provides a concave friction vacuum sucker, which includes a disc body. A sealing ring edge is installed around the bottom end of the disc body. An anti-slip component is installed inside the disc body. A connecting head is installed at the top end of the disc body. An installation component is connected to the upper side of the connecting head. The anti-slip component includes anti-slip strips annularly installed on the inner wall of the disc body and fitting grooves opened at the bottom ends of the anti-slip strips.

[0008] Further, the anti-slip strips are made of silica gel material, and the anti-slip strips are bonded to the disc body.

[0009] By adopting the above technical solution, it can ensure the reliable bonding and fixing of the anti-slip strip on the inner wall of the disc body.

[0010] Furthermore, the bottom ends of all the anti-slip strips are flush, and the bottom ends of all the anti-slip strips are parallel to the bottom end face of the disc body.

[0011] By adopting the above technical solution, such a design can ensure that after the disc body adsorbs the workpiece, the bottom of the anti-slip strip can contact more with the surface of the workpiece, making the friction force between the workpiece and the disc body greater after adsorption.

[0012] Furthermore, the fitting groove is formed on the anti-slip strip, and the fitting groove is of a flared structure.

[0013] By adopting the above technical solution, after the anti-slip strip is pressed on the surface of the workpiece, with the expansion of the fitting groove, the contact area between the anti-slip strip and the surface of the workpiece becomes larger.

[0014] Furthermore, a reinforcing rib is annularly installed outside the disc body, and the reinforcing rib is bonded to the disc body.

[0015] By adopting the above technical solution, the reinforcing rib is mainly used to increase the overall structural strength of the disc body and avoid deformation and damage of the disc body during use.

[0016] Furthermore, the installation assembly includes a connecting sleeve installed on the connector, a screw head formed on the connector, a fastening nut installed on the screw head, and a sealing ring installed on the upper side of the fastening nut.

[0017] By adopting the above technical solution, the reliable connection between the connector and the external air extraction pipeline can be realized under the action of the installation assembly to ensure the normal use of the vacuum chuck.

[0018] Furthermore, the connector is inserted and fixed with the connecting sleeve, and the connector and the disc body are of an integral structure.

[0019] By adopting the above technical solution, the reliable cooperation and fixation between the connector and the connecting sleeve can be ensured.

[0020] Furthermore, the fastening nut is screwed with the screw head, and the sealing ring is sleeved outside the screw head and contacts the end face of the fastening nut.

[0021] By adopting the above technical solution, after the fastening nut is tightened, the reliable connection between the screw head and the external air extraction pipeline can be realized to avoid the loosening of the external air extraction pipeline during use.

[0022] (III) Beneficial effects

[0023] The utility model has the following beneficial effects compared with the prior art:

[0024] To solve the problem that the existing concave friction vacuum suction cup is mainly composed of a flexible suction cup, a groove formed on the inner wall of the flexible suction cup, and a mounting component installed at the top end of the flexible suction cup. Although this kind of concave friction vacuum suction cup with such a structure can adsorb and transfer workpieces with uneven surfaces during use, due to the small area of the groove on this kind of concave friction vacuum suction cup and its concentrated distribution at the lower part of the inner wall of the flexible disc, the adsorption area of the vacuum suction cup when adsorbing workpieces with uneven surfaces is small, which easily causes the workpiece to slip laterally relative to the vacuum suction cup when suddenly stopping during the workpiece transfer process, and then leads to the risk of accidental dropping of the workpiece. The utility model installs an anti-slip component annularly on the disc body and makes the bottom ends of the anti-slip components parallel to the bottom end of the disc body, so that when this concave friction vacuum suction cup is in use, the anti-slip strips in the anti-slip component can be pressed on the surface of the workpiece with uneven surface, and by expanding the fitting groove and making it in close contact with the workpiece surface, the suction area between the vacuum suction cup and the workpiece surface can be effectively increased, so that the workpiece will not slip and be misaligned relative to the disc body when suddenly stopping during the transfer process, and the risk of accidental dropping of the workpiece can be avoided. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of a concave friction vacuum suction cup according to the utility model;

[0026] Figure 2 is a bottom view of a concave friction vacuum suction cup according to the utility model;

[0027] Figure 3 is a schematic structural diagram of the anti-slip component in a concave friction vacuum suction cup according to the utility model.

[0028] The descriptions of the reference numerals are as follows:

[0029] 1. Mounting component; 101. Screw head; 102. Sealing ring; 103. Tightening nut; 104. Connecting sleeve; 2. Connecting head; 3. Disc body; 4. Sealing ring edge; 5. Reinforcing rib; 6. Anti-slip component; 601. Anti-slip strip; 602. Fitting groove. Detailed Embodiment

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the following further details the utility model with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0031] As Figures 1 - 3As shown in the figure, a concave friction vacuum suction cup in this embodiment includes a disk body 3. A sealing ring edge 4 is installed around the bottom end of the disk body 3. An anti-slip component 6 is installed inside the disk body 3. A connecting head 2 is installed at the top end of the disk body 3. An installation component 1 is connected to the upper side of the connecting head 2. Among them, the anti-slip component 6 includes anti-slip strips 601 annularly installed on the inner wall of the disk body 3 and fitting grooves 602 opened at the bottom ends of the anti-slip strips 601. The bottom ends of the anti-slip strips 601 are flush with each other, and the bottom ends of the anti-slip strips 601 are parallel to the bottom end surface of the disk body 3. Such a design can ensure that after the disk body 3 adsorbs the workpiece, the bottom of the anti-slip strip 601 can contact the surface of the workpiece more, making the friction between the workpiece and the disk body 3 greater after adsorption.

[0032] As Figures 1 - 3 shown, in this embodiment, the anti-slip strip 601 is made of silica gel material, and the anti-slip strip 601 is bonded to the disk body 3, which can ensure the reliable bonding and fixing of the anti-slip strip 601 on the inner wall of the disk body 3. The fitting groove 602 is formed on the anti-slip strip 601, and the fitting groove 602 is of a flared structure. After the anti-slip strip 601 is pressed on the surface of the workpiece, with the expansion of the fitting groove 602, the contact area between the anti-slip strip 601 and the surface of the workpiece becomes larger.

[0033] As Figures 1 - 3 shown, in this embodiment, a reinforcing rib 5 is also annularly installed outside the disk body 3. The reinforcing rib 5 is bonded to the disk body 3. The reinforcing rib 5 is mainly used to increase the overall structural strength of the disk body 3 and avoid deformation and damage of the disk body 3 during use.

[0034] As Figures 1 - 3 shown, in this embodiment, the installation component 1 includes a connecting sleeve 104 installed on the connecting head 2, a screw head 101 formed on the connecting head 2, a fastening nut 103 installed on the screw head 101, and a sealing ring 102 installed on the upper side of the fastening nut 103. Under the action of the installation component 1, the connecting head 2 can be reliably connected to an external air extraction pipeline to ensure the normal use of the vacuum suction cup. The connecting head 2 is inserted and fixed with the connecting sleeve 104. The connecting head 2 and the disk body 3 are of an integral structure, which can ensure the reliable cooperation and fixing of the connecting head 2 and the connecting sleeve 104. The fastening nut 103 is screwed with the screw head 101. The sealing ring 102 is sleeved outside the screw head 101 and contacts the end surface of the fastening nut 103. After the fastening nut is tightened, the screw head 101 can be reliably connected to the external air extraction pipeline to avoid loosening of the external air extraction pipeline during use.

[0035] The specific implementation process of this embodiment is as follows: During use, first connect the vacuum suction cup to an external air extraction pipeline through the mounting assembly 1. Then, simply press the bottom end of the disc body 3 against the surface of the workpiece and evacuate the inside of the disc body 3 to a negative pressure state to achieve the adsorption of the workpiece, facilitating the convenient adsorption and transfer of workpieces with uneven surfaces. During the adsorption and transfer process, by annularly installing the anti-slip assembly 6 on the disc body 3 and making the bottom ends of the anti-slip assemblies 6 parallel to the bottom end of the disc body 3, when the concave friction vacuum suction cup is in use, the anti-slip strips 601 in the anti-slip assembly 6 can be pressed against the surface of the workpiece with an uneven surface, and after the fitting grooves 602 are expanded to be in close contact with the workpiece surface, the suction area between the vacuum suction cup and the workpiece surface can be effectively increased, so that the workpiece will not slip and misalign relative to the disc body 3 when encountering an emergency stop during the transfer process, avoiding the risk of accidental dropping of the workpiece.

[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A concave friction vacuum suction cup, characterized in that: It includes a disk body (3), a sealing ring edge (4) is installed around the bottom end of the disk body (3), an anti-slip component (6) is installed inside the disk body (3), a connection head (2) is installed at the top end of the disk body (3), and an installation component (1) is connected to the upper side of the connection head (2), wherein the anti-slip component (6) includes anti-slip strips (601) annularly installed on the inner wall of the disk body (3) and fitting grooves (602) opened at the bottom ends of the anti-slip strips (601).

2. The concave friction vacuum chuck according to claim 1, characterized in that: The anti-slip strips (601) are made of silica gel material, and the anti-slip strips (601) are bonded to the disk body (3).

3. The concave friction vacuum chuck according to claim 1, wherein: The bottom ends of the anti-slip strips (601) are flush with each other, and the bottom ends of the anti-slip strips (601) are parallel to the bottom end face of the disk body (3).

4. The concave friction vacuum chuck according to claim 1, wherein: The fitting grooves (602) are formed on the anti-slip strips (601), and the fitting grooves (602) are of a flared structure.

5. The concave friction vacuum chuck according to claim 1, characterized in that: Reinforcing ribs (5) are also annularly installed outside the disk body (3), and the reinforcing ribs (5) are bonded to the disk body (3).

6. The concave friction vacuum chuck according to claim 1, wherein: The installation component (1) includes a connection sleeve (104) installed on the connection head (2), a screw head (101) formed on the connection head (2), a fastening nut (103) installed on the screw head (101), and a sealing ring (102) installed on the upper side of the fastening nut (103).

7. The concave friction vacuum chuck according to claim 6, characterized in that: The connection head (2) is inserted and fixed with the connection sleeve (104), and the connection head (2) and the disk body (3) are of an integral structure.

8. The concave friction vacuum chuck according to claim 6, characterized in that: The fastening nut (103) is screwed with the screw head (101), and the sealing ring (102) is sleeved outside the screw head (101) and contacts the end face of the fastening nut (103).

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