Vacuum adsorption device for thin-wall workpiece

Abstract

The utility model belongs to the technical field of workpiece fixing, and particularly relates to a thin-wall type workpiece vacuum adsorption device which comprises a foot stool, a placing table is installed on the foot stool, a sliding groove is formed in the placing table, a sliding block is assembled in the sliding groove, a push plate is welded to the top side of the sliding block, and the push plate is provided with a push rod. A first lead screw is rotationally installed between the inner walls of the sliding grooves through bearings, the first lead screw penetrates through the sliding blocks, a stepping motor is installed on the side wall of the containing table through a machine base, two sets of guide rods are symmetrically installed on the containing table, moving grooves are formed in the guide rods, and a push plate is driven to move horizontally through the sliding blocks. The push plate pushes the workpiece to horizontally move, when the workpiece passes through the rolling brush, the rolling brush rotates, the rolling brush cleans the upper surface of the workpiece, cleaning of particles attached to the adsorption face is achieved, by installing the cleaning assembly, the sealing failure between the suction cup and the adsorption face is avoided, the vacuum adsorption failure of the workpiece is reduced, and the stability of the workpiece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece fixing, in particular to a thin-wall workpiece vacuum adsorption device. Background Art

[0002] When machining workpieces, in order to ensure the manufacturing accuracy of the workpieces, the workpieces need to be clamped and fixed. When clamping thin-walled workpieces, indentations will be left on the workpieces or the workpiece shell will be squeezed and deformed. In order to avoid affecting the final dimensional accuracy of thin-walled workpieces, a vacuum adsorption device is required.

[0003] The vacuum adsorption device is composed of structures such as an air pump, a suction cup and an evacuation box. Through the operation of the air pump, a certain negative pressure is created in the closed space formed by the adsorption surface of the workpiece, the suction cup and the evacuation box. Under the action of the pressure difference, the adsorption surface of the workpiece is sucked by the suction cup, thereby realizing the positioning of the workpiece.

[0004] When existing vacuum adsorption devices adsorb thin-walled workpieces, they are unable to clean the particles attached to the adsorption surface. The particles can easily cause the seal between the suction cup and the adsorption surface to fail, resulting in failure of the vacuum adsorption of the workpiece, causing low stability of the workpiece and affecting the processing accuracy of the workpiece. Therefore, a vacuum adsorption device for thin-walled workpieces is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems existing in the prior art, the utility model provides a thin-wall workpiece vacuum adsorption device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a thin-walled workpiece vacuum adsorption device described in the utility model comprises a tripod, a placing table is installed on the tripod, a slide groove is provided on the placing table, a slider is installed in the slide groove, a push plate is welded on the top side of the slider, a first screw rod is rotatably installed between the inner walls of the slide groove through a bearing, the first screw rod passes through the slider, a thread is provided on the slider and slides with the first screw rod through the thread, a stepping motor is installed on the side wall of the placing table through a machine base, the output shaft of the stepping motor is fixedly connected to the first screw rod, two sets of guide rods are symmetrically installed on the placing table, a movable groove is provided in the guide rod, and the movable groove is an L-shaped structure. A moving block is assembled in the moving groove, a first connecting plate is welded on one of the moving blocks, a mounting bracket is welded on the bottom wall of the first connecting plate, a roller brush is rotatably mounted between the inner walls of the mounting bracket through a bearing, a motor is mounted on the side wall of the mounting bracket through a machine base, the output shaft of the motor is fixedly connected to the roller brush, and the push plate is driven to move horizontally through the slider, and the push plate pushes the workpiece to move horizontally. When passing through the roller brush, the motor is operated to drive the roller brush to rotate, and the roller brush cleans the upper surface of the workpiece, thereby cleaning the particles attached to the adsorption surface. This structure avoids the failure of the seal between the suction cup and the adsorption surface by installing a cleaning component, reduces the failure of vacuum adsorption of the workpiece, and is beneficial to improving the stability of the workpiece.

[0007] Preferably, a second connecting plate is welded on the other moving block, an air pump is fixedly installed on the top side of the second connecting plate, a conduit is connected to the air pump, the other end of the conduit is connected to a vacuum box, the top side of the vacuum box is fixedly connected to the bottom side of the second connecting plate, a plurality of groups of straws are connected to the bottom plate of the vacuum box, a suction cup is connected to the bottom end of the straw, the air pump is operated to create a certain negative pressure in the closed space formed by the adsorption surface of the workpiece, the suction cup, the straw, the vacuum box and the conduit, under the action of the pressure difference, the upper surface of the workpiece is sucked by the suction cup, thereby realizing the positioning of the workpiece, which is beneficial to improving the fixing efficiency of the workpiece.

[0008] Preferably, an adjusting box is welded on the placing table, and the adjusting box is located between the two groups of guide rods. An adjusting slot is opened inside the adjusting box, and an adjusting block is installed in the adjusting slot. A second screw rod is rotatably installed between the inner walls of the adjusting slot through a bearing, and the top of the second screw rod passes through the top plate of the adjusting box and is welded with a knob. Adjustment plates are symmetrically welded on the left and right sides of the adjusting block, and the other end of the adjusting plate is fixedly connected to the moving block. Through the rotation of the second screw rod, the adjustment block on the second screw rod drives the adjustment plates on both sides to move vertically, and the two groups of adjustment plates drive the two groups of moving blocks to move vertically, and the two groups of moving blocks respectively drive the cleaning assembly and the adsorption assembly to move vertically, so that the rolling brush can contact the upper surface of the workpiece, and the height of the device can be quickly adjusted according to the specifications of the workpiece, which is beneficial to improving the adaptability of the device.

[0009] The utility model is beneficial in that:

[0010] 1. The utility model drives the push plate to move horizontally through the slider, and the push plate pushes the workpiece to move horizontally. When passing through the roller brush, the motor is operated to drive the roller brush to rotate, and the roller brush cleans the upper surface of the workpiece, thereby cleaning the particles attached to the adsorption surface. This structure avoids the failure of the seal between the suction cup and the adsorption surface by installing a cleaning component, reduces the vacuum adsorption failure of the workpiece, and is beneficial to improving the stability of the workpiece.

[0011] 2. The utility model operates through an air pump to create a certain negative pressure in the closed space formed by the adsorption surface of the workpiece, the suction cup, the suction tube, the vacuum box and the duct. Under the action of the pressure difference, the upper surface of the workpiece is sucked by the suction cup, thereby realizing the positioning of the workpiece and improving the fixing efficiency of the workpiece. Through the rotation of the second screw, the adjustment block on the second screw drives the adjustment plates on both sides to move vertically, and the two groups of adjustment plates drive the two groups of moving blocks to move vertically. The two groups of moving blocks respectively drive the cleaning component and the adsorption component to move vertically, so that the roller brush can contact the upper surface of the workpiece, and the height of the device can be quickly adjusted according to the specifications of the workpiece, which is beneficial to improving the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 It is a schematic diagram of a three-dimensional structure from a first-person perspective;

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the roller brush;

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the adsorption component;

[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the regulating box.

[0017] In the figure: 1. tripod; 2. placing table; 3. slide groove; 4. slider; 5. first screw rod; 6. stepping motor; 7. guide rod; 8. moving groove; 9. moving block; 10. first connecting plate; 11. mounting frame; 12. roller brush; 13. motor; 14. second connecting plate; 15. air pump; 16. conduit; 17. vacuum box; 18. straw; 19. suction cup; 20. adjustment box; 21. adjustment groove; 22. adjustment block; 23. second screw rod; 24. knob; 25. adjustment plate; 26. push plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4As shown, a vacuum adsorption device for thin-walled workpieces includes a tripod 1, a placing table 2 is installed on the tripod 1, a slide groove 3 is opened on the placing table 2, a slider 4 is installed in the slide groove 3, a push plate 26 is welded on the top side of the slider 4, a first screw rod 5 is rotatably installed between the inner walls of the slide groove 3 through a bearing, the first screw rod 5 passes through the slider 4, a thread is opened on the slider 4 and slides with the first screw rod 5 through the thread, a stepping motor 6 is installed on the side wall of the placing table 2 through a machine base, the output shaft of the stepping motor 6 is fixedly connected to the first screw rod 5, two groups of guide rods 7 are symmetrically installed on the placing table 2, a moving groove 8 is opened in the guide rod 7, the moving groove 8 is an L-shaped structure, and a push plate 26 is installed in the moving groove 8 There are moving blocks 9, one of which is welded with a first connecting plate 10, a mounting frame 11 is welded on the bottom wall of the first connecting plate 10, a roller brush 12 is rotatably mounted between the inner walls of the mounting frame 11 through a bearing, a motor 13 is mounted on the side wall of the mounting frame 11 through a base, and the output shaft of the motor 13 is fixedly connected to the roller brush 12, a second connecting plate 14 is welded on the other moving block 9, an air pump 15 is fixedly mounted on the top side of the second connecting plate 14, a conduit 16 is connected to the air pump 15, and the other end of the conduit 16 is connected to an evacuation box 17, the top side of the evacuation box 17 is fixedly connected to the bottom side of the second connecting plate 14, and a plurality of groups of straws 18 are connected to the bottom plate of the evacuation box 17. A suction cup 19 is connected to the bottom end of 18, an adjustment box 20 is welded on the placing table 2, the adjustment box 20 is located between the two groups of guide rods 7, an adjustment slot 21 is opened inside the adjustment box 20, an adjustment block 22 is assembled in the adjustment slot 21, a second screw rod 23 is rotatably installed between the inner walls of the adjustment slot 21 through a bearing, the top end of the second screw rod 23 passes through the top plate of the adjustment box 20 and is welded with a knob 24, and adjustment plates 25 are symmetrically welded on the left and right sides of the adjustment block 22, and the other end of the adjustment plate 25 is fixedly connected to the moving block 9; when working, the existing vacuum adsorption device cannot clean the particles attached to the adsorption surface when adsorbing thin-walled workpieces, and the particles can easily cause the suction cup 19 to be adsorbed. The seal between the surfaces fails, causing the vacuum adsorption of the workpiece to fail, resulting in low stability of the workpiece, affecting the processing accuracy of the workpiece. By turning the knob 24, the second screw 23 is driven to rotate, and the adjustment block 22 on the second screw 23 moves vertically. The adjustment block 22 drives the adjustment plates 25 on both sides to move vertically. The two groups of adjustment plates 25 drive the two groups of moving blocks 9 to move vertically. The two groups of moving blocks 9 drive the first connecting plate 10 and the second connecting plate 14 to move vertically respectively. The first connecting plate 10 and the second connecting plate 14 drive the cleaning assembly and the adsorption assembly to move vertically, so that the roller brush 12 can contact the upper surface of the workpiece, and the height of the device can be quickly adjusted according to the specifications of the workpiece.By placing the thin-walled workpiece on the placement table 2, the stepper motor 6 operates to drive the first screw 5 to rotate, the slider 4 on the first screw 5 moves horizontally in the slide groove 3, the slider 4 drives the push plate 26 to move horizontally, the push plate 26 pushes the workpiece to move horizontally, the workpiece slides on the placement table 2, and when passing through the roller brush 12, the motor 13 operates to drive the roller brush 12 to rotate, and the roller brush 12 cleans the upper surface of the workpiece, thereby cleaning the particles attached to the adsorption surface. After the adsorption surface of the workpiece is cleaned, the push plate 26 continues to push the workpiece to move, and pushes the workpiece to the bottom of the adsorption structure, and the air pump 15 operates to create a certain negative pressure in the closed space formed by the adsorption surface of the workpiece, the suction cup 19, the suction pipe 18, the vacuum box 17 and the conduit 16. Under the action of the pressure difference, the upper surface of the workpiece is sucked by the suction cup 19, and the positioning of the workpiece is achieved. This structure avoids the sealing failure between the suction cup 19 and the adsorption surface by installing the cleaning component, reduces the vacuum adsorption failure of the workpiece, and is conducive to improving the stability of the workpiece. ;

[0020] Working principle: when the existing vacuum adsorption device adsorbs thin-walled workpieces, it is impossible to clean the particles attached to the adsorption surface. The particles can easily make the seal between the suction cup 19 and the adsorption surface fail, resulting in the failure of the vacuum adsorption of the workpiece, which leads to low stability of the workpiece and affects the processing accuracy of the workpiece. By turning the knob 24, the second screw rod 23 is driven to rotate, and the adjustment block 22 on the second screw rod 23 moves vertically. The adjustment block 22 drives the adjustment plates 25 on both sides to move vertically. The two groups of adjustment plates 25 drive the two groups of moving blocks 9 to move vertically. The two groups of moving blocks 9 drive the first connecting plate 10 and the second connecting plate 14 to move vertically respectively. The first connecting plate 10 and the second connecting plate 14 drive the cleaning component and the adsorption component to move vertically, so that the roller brush 12 can contact with the upper surface of the workpiece, and can be adjusted according to the workpiece surface. The height of the device can be quickly adjusted according to the specifications of the workpiece; by placing the thin-walled workpiece on the placement table 2, the stepper motor 6 is operated to drive the first screw rod 5 to rotate, the slider 4 on the first screw rod 5 moves horizontally in the slide groove 3, the slider 4 drives the push plate 26 to move horizontally, the push plate 26 pushes the workpiece to move horizontally, the workpiece slides on the placement table 2, and when passing through the roller brush 12, the motor 13 is operated to drive the roller brush 12 to rotate, the roller brush 12 cleans the upper surface of the workpiece, and realizes the cleaning of the particles attached to the adsorption surface. After the adsorption surface of the workpiece is cleaned, the push plate 26 continues to push the workpiece to move, and pushes the workpiece to the bottom of the adsorption structure, and the air pump 15 is operated to create a certain negative pressure in the closed space formed by the adsorption surface of the workpiece, the suction cup 19, the suction pipe 18, the vacuum box 17 and the conduit 16. Under the action of the pressure difference, the upper surface of the workpiece is sucked by the suction cup 19 to achieve the positioning of the workpiece. This structure avoids the failure of the seal between the suction cup 19 and the adsorption surface by installing a cleaning component, reduces the vacuum adsorption failure of the workpiece, and is beneficial to improving the stability of the workpiece.

[0021] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A vacuum adsorption device for thin-walled workpieces, characterized in that The invention comprises a tripod (1), wherein a placing platform (2) is installed on the tripod (1), a slide groove (3) is provided on the placing platform (2), a slider (4) is installed in the slide groove (3), a push plate (26) is welded on the top side of the slider (4), a first screw rod (5) is rotatably installed between the inner walls of the slide groove (3) through a bearing, the first screw rod (5) passes through the slider (4), a thread is provided on the slider (4) and slides with the first screw rod (5) through the thread, a stepping motor (6) is installed on the side wall of the placing platform (2) through a machine base, and the output shaft of the stepping motor (6) is fixedly connected to the first screw rod (5). Two groups of guide rods (7) are symmetrically mounted on the placement table (2), a movable groove (8) is provided in the guide rod (7), the movable groove (8) is an L-shaped structure, a movable block (9) is mounted in the movable groove (8), a first connecting plate (10) is welded to one of the movable blocks (9), a mounting frame (11) is welded to the bottom wall of the first connecting plate (10), a roller brush (12) is rotatably mounted between the inner walls of the mounting frame (11) via a bearing, a motor (13) is mounted on the side wall of the mounting frame (11) via a base, and an output shaft of the motor (13) is fixedly connected to the roller brush (12).

2. A thin-wall workpiece vacuum adsorption device according to claim 1, characterized in that: A second connecting plate (14) is welded to the other moving block (9), an air pump (15) is fixedly mounted on the top side of the second connecting plate (14), a conduit (16) is connected to the air pump (15), the other end of the conduit (16) is connected to an evacuation box (17), and the top side of the evacuation box (17) is fixedly connected to the bottom side of the second connecting plate (14).

3. A vacuum adsorption device for thin-walled workpieces according to claim 2, characterized in that: A plurality of groups of suction tubes (18) are connected to the bottom plate of the vacuum box (17), and a suction cup (19) is connected to the bottom end of each suction tube (18).

4. A thin-wall workpiece vacuum adsorption device according to claim 1, characterized in that: An adjustment box (20) is welded on the placement table (2), the adjustment box (20) is located between the two groups of guide rods (7), and an adjustment slot (21) is provided inside the adjustment box (20).

5. A thin-wall workpiece vacuum adsorption device according to claim 4, characterized in that: An adjusting block (22) is mounted in the adjusting groove (21), and a second screw rod (23) is rotatably mounted between the inner walls of the adjusting groove (21) via a bearing.

6. A thin-wall workpiece vacuum adsorption device according to claim 5, characterized in that: The top end of the second screw rod (23) passes through the top plate of the adjustment box (20) and is welded with a knob (24). Adjustment plates (25) are symmetrically welded on the left and right sides of the adjustment block (22). The other end of the adjustment plate (25) is fixedly connected to the moving block (9).

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