Self-locking vacuum target lifter

Abstract

The utility model provides a kind of self-locking target material vacuum suction crane, belong to handling equipment technical field, to solve the damage of the existing vacuum suction crane suction cup and cause insufficient adsorption, suction cup adsorption hoisting and transporting target material target plate and cause its drop damage problem;Through the suction cup body of fixed shell bottom and the top surface of target plate body are attached, vacuum pump uses the cooperation of fixed shell, fixed cylinder and moving tube to vacuumize suction cup body, to adsorb and hoist target plate body, while suction pipe carries out vacuumization to the air cylinder on the side of suction cup body, the negative pressure adsorption piston head in air cylinder and moving rod move up, moving rod moves up and slides along the guide inclined groove on the inner wall of support frame, so that support frame slides out from the limiting cavity in the installation seat at the bottom of air cylinder and is inserted into the bottom of target plate body, so that target plate body is lifted up, target plate body is clamped between support frame and suction cup body, realize automatic locking to target plate body, avoid the drop damage caused by insufficient adsorption when suction cup body hoists target plate body.

Description

Technical Field

[0001] This invention relates to the field of material handling equipment technology, and more specifically, to a self-locking vacuum suction lifting machine for target materials. Background Technology

[0002] Vacuum suction lifters (commonly known as elephant trunk vacuum lifters) are fast, safe, and convenient automated devices, classified as lifting equipment in other countries. They utilize the principle of vacuum adsorption, using a vacuum pump or vacuum blower as a vacuum source to generate a vacuum at the suction cup end, thereby firmly lifting various workpieces and then transporting them to a designated location via a rotating robotic arm or crane.

[0003] To prevent damage from conventional robotic arms when handling target materials, vacuum lifting machines are typically used during processing to move target materials and plates. These machines utilize the suction force of suction cups to lift and transport the target materials and plates to designated locations. However, after prolonged use, the suction cups of existing vacuum lifting machines often suffer from component damage, resulting in insufficient suction force. Since operators cannot constantly monitor the suction force, the suction cups are prone to detaching during target material handling, causing the target materials and plates to fall and become damaged.

[0004] Therefore, we have launched a self-locking vacuum suction hoist for target materials. Summary of the Invention

[0005] The purpose of this invention is to provide a self-locking vacuum suction lifting machine for target materials, which aims to solve the problem in the above-mentioned background art where the suction cup of the existing vacuum suction lifting machine is damaged, resulting in insufficient suction force and causing the target material to fall and be damaged when the suction cup is used to lift the target material.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a self-locking target vacuum suction lifting machine, comprising a mounting column and a control computer fixedly connected to the outer wall of the mounting column. A mounting plate is fixedly connected to the outer wall of the mounting column above the control computer. A boom beam is movably mounted at the top end of the mounting plate. A lifting lug is movably connected to the bottom of the boom beam. A fixed housing is fixedly connected to the bottom of the lifting lug. The fixed housing has a hollow structure, with vacuum pumps installed on both sides of its top. The vacuum pump's suction cylinder is connected to the fixed housing. A connected vacuum suction cup is installed at each of the four corners of the bottom of the fixed housing. The vacuum suction cup is used to adhere to and adsorb the target plate body. One side of the outer wall of the vacuum suction cup... An adjusting rod is fixedly connected to the top, and an air cylinder is fixedly connected to the end of the adjusting rod. The top of the air cylinder is connected to the side wall of the fixed housing through a flexible suction pipe. A mounting base is fixedly connected to the bottom of the air cylinder. A moving rod is movably installed through the bottom plate of the air cylinder. A piston head is fixedly connected to the top of the moving rod inside the air cylinder. The lower end of the moving rod extends through to the limiting cavity at the bottom of the mounting base. A return spring is wound on the outer wall of the moving rod between the top plate of the mounting base and the bottom plate of the air cylinder. A support frame is movably engaged inside the limiting cavity. Guide grooves are provided on the inner walls of both sides of the support frame. Limiting rods are fixedly connected to the outer walls on both sides at the bottom of the moving rod. The moving rod is movably connected to the support frame through the guide grooves at the ends of the limiting rods.

[0007] Furthermore, the limiting cavity port extends to the side wall of the mounting base near the fixed housing. The end of the support frame near the limiting cavity port has an inclined structure. When the reset spring is in a normally relaxed state, the limiting rod is located at the inclined lower end of the guide groove. At this time, the end of the support frame is flush with the limiting cavity port.

[0008] Furthermore, a manual vent valve is provided on the side wall of the air cylinder near the top, and air inlets are provided on both sides of the connection between the air cylinder and the mounting base, with the bottom plate of the air cylinder located above the air inlets.

[0009] Furthermore, the boom beam includes a rotating plate movably mounted on the top of the end of the mounting plate and a rotating shaft fixedly connected to the top of the rotating plate. A guide rail is fixedly connected to the outer wall of the rotating shaft on the side away from the mounting column. A pneumatic slider is movably mounted at the bottom of the guide rail. A boom component is fixedly connected to the bottom of the pneumatic slider. A lifting lug is movably connected to the bottom of the boom component.

[0010] Furthermore, a positioning plate is movably sleeved on the top of the rotating shaft, and the end of the positioning plate is fixedly connected to the side wall of the mounting column. A diagonal cable is provided on the side wall of the rotating shaft below the positioning plate, and the end of the diagonal cable is fixedly connected to the top of the guide rail.

[0011] Furthermore, the boom assembly includes an electric lifting rod fixedly connected to the bottom of the pneumatic slider and a limiting hook fixedly connected to the bottom of the electric lifting rod. The lifting lug is movably mounted on the outer wall of the limiting hook and then connected to the fixed housing. Connecting strips are fixedly connected to the outer walls on both sides of the straight rod at the end of the electric lifting rod, and a balance bar is movably installed through the end of the connecting strip.

[0012] Furthermore, the connecting bars are symmetrically arranged about the electric lifting rod, and the connecting bars are perpendicular to the guide rail. The bottom of the balance bar at the end of the connecting bar is attached to the top plate of the fixed housing.

[0013] Furthermore, the vacuum suction cup includes a fixed cylinder that is fixedly connected to the four corners of the bottom of the fixed housing and is in communication with them, and a movable tube that is movably installed through the bottom plate of the fixed cylinder. An adjusting rod is fixedly connected to the side wall of the fixed cylinder, and the bottom of the movable tube is fixedly connected to the suction cup body. A buffer spring is wound around the outer wall of the movable tube between the top of the suction cup body and the bottom of the fixed cylinder.

[0014] Furthermore, the adjusting rods at both ends of the lower part of the fixed housing are symmetrically arranged about the center line of the fixed housing, and the adjusting rods at the same end of the fixed housing are parallel to each other. The adjusting rods are used to adjust the distance between the mounting base and the suction cup body.

[0015] Furthermore, the adjusting rod includes an isolation cover fixedly connected to the side wall of the fixed cylinder and a telescopic spring rod movably extending through the top of the isolation cover. The lower end of the telescopic spring rod extends into the interior of the isolation cover. A limit block is fixedly connected to the side wall of the moving end of the top of the telescopic spring rod inside the isolation cover. A limit clamp is fixedly connected to the lower end of the top plate of the isolation cover outside the telescopic spring rod. A winding reel is fixedly connected to the outer wall of the non-moving end of the bottom of the telescopic spring rod. A traction rope is wound on the outer wall of the winding reel. The end of the traction rope is fixedly connected to the end side wall of the connecting rod that slides with the side wall of the isolation cover. The end of the connecting rod extends through to the outside of the isolation cover and its end is fixedly connected to the side wall of the air cylinder. An elastic component is wound around the outer wall of the connecting rod inside the isolation cover.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] This invention proposes a self-locking vacuum suction lifting machine for target materials. The suction cup body at the bottom of the fixed housing adheres to the top surface of the target plate body. A vacuum pump, through the cooperation of the fixed housing, fixed cylinder, and moving tube, evacuates the suction cup body, thereby adsorbing and lifting the target plate body. Simultaneously, the suction pipe evacuates the air cylinder next to the suction cup body. The negative pressure in the air cylinder causes the adsorption piston head and moving rod to move upwards. The moving rod slides along the guide groove on the inner wall of the support frame, causing the support frame to slide out from the limiting cavity in the mounting seat at the bottom of the air cylinder. The support frame slides out and approaches the target plate body, inserting into the bottom of the target plate body, causing the target plate body to rise upwards. This pushes the suction cup body and moving tube to compress the buffer spring, clamping the target plate body between the support frame and the suction cup body. The support frame automatically locks the target plate body, preventing it from falling and being damaged due to insufficient suction force when the suction cup body is lifting the target plate body. This design is convenient and practical. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the mounting structure of the fixed housing and vacuum suction cup of the present invention;

[0020] Figure 3 This is a schematic diagram of the installation structure of the air cylinder and adjusting rod of the present invention;

[0021] Figure 4 This is a schematic diagram of the air cylinder and mounting base installation structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the installation structure of the movable rod and the support frame of the present invention;

[0023] Figure 6 This is a schematic diagram of the adjusting rod structure of the present invention;

[0024] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0025] Figure 8 This is a schematic diagram of the boom component structure of the present invention.

[0026] In the diagram: 1. Mounting column; 2. Control computer; 3. Mounting plate; 4. Boom beam; 41. Rotating plate; 42. Rotating shaft; 43. Guide rail; 44. Pneumatic slider; 45. Boom components; 451. Electric lifting rod; 452. Limit hook; 453. Connecting bar; 454. Balance bar; 46. Positioning plate; 47. Diagonal cable; 5. Mounting lug; 6. Fixed housing; 7. Vacuum pump; 8. Vacuum suction cup; 81. Fixed cylinder; 82. Moving tube; 83. Suction cup body; 84. Buffer spring ; 10. Target plate body; 11. Adjusting rod; 111. Isolation cover; 112. Telescopic spring rotating rod; 113. Limiting block; 114. Limiting clamp; 115. Winding reel; 116. Traction rope; 117. Connecting rod; 118. Elastic component; 12. Air cylinder; 121. Manual air release valve; 122. Air inlet; 13. Suction pipe; 14. Mounting base; 15. Moving rod; 16. Piston head; 17. Limiting cavity; 18. Return spring; 19. Support frame; 20. Guide groove; 21. Limiting rod. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figure 1 A self-locking target vacuum suction lifting machine includes a mounting column 1 and a control computer 2 fixedly connected to the outer wall of the mounting column 1. A mounting plate 3 is fixedly connected to the outer wall of the mounting column 1 above the control computer 2. A boom beam 4 is movably installed at the top end of the mounting plate 3. The boom beam 4 includes a rotating plate 41 movably installed at the top end of the mounting plate 3 and a rotating shaft 42 fixedly connected to the top of the rotating plate 41. The bottom of the rotating plate 41 is fixedly connected to the output end of a rotating motor at the bottom of the mounting plate 3. The rotating motor can rotate in both directions. A guide rail 43 is fixedly connected to the outer wall of the rotating shaft 42 on the side away from the mounting column 1. A pneumatic slider 44 is movably installed at the bottom of the guide rail 43. A pneumatic component is installed inside the guide rail 43 to push the pneumatic slider 44 to move horizontally left and right. A boom component 45 is fixedly connected to the bottom of the pneumatic slider 44. A lifting lug 5 is movably connected to the bottom of the boom component 45.

[0029] A positioning plate 46 is movably sleeved on the top of the rotating shaft 42. The end of the positioning plate 46 is fixedly connected to the side wall of the mounting column 1. A diagonal cable 47 is provided on the side wall of the rotating shaft 42 below the positioning plate 46. The end of the diagonal cable 47 is fixedly connected to the top of the guide rail 43. The positioning plate 46 and the diagonal cable 47 enhance the stability of the guide rail 43.

[0030] To address the issue of insufficient suction force due to damage to the suction cups in existing vacuum lifting machines, causing target materials to fall and be damaged during lifting, please refer to [link to relevant documentation]. Figures 1-8 The following preferred technical solutions are provided:

[0031] The bottom of the boom beam 4 is movably connected to a lifting lug 5. A fixed housing 6 is fixedly connected to the bottom of the lifting lug 5. The fixed housing 6 is a hollow structure, with vacuum pumps 7 installed on both sides of its top. The vacuum pump 7's suction cylinder is connected to the fixed housing 6. Vacuum suction cups 8 are connected at the four corners of the bottom of the fixed housing 6. The vacuum suction cups 8 are used to adhere to and adsorb the target plate body 10. An adjusting rod 11 is fixedly connected to one outer wall of the vacuum suction cup 8. An air cylinder 12 is fixedly connected to the end of the adjusting rod 11. The top of the air cylinder 12 is connected to the side wall of the fixed housing 6 via a flexible suction pipe 13. A mounting base 14 is fixedly connected to the bottom of the air cylinder 12. A movable rod 15 is provided through the upper part of the cylinder 12. There is a gap between the movable rod 15 and the bottom plate of the cylinder 12. A piston head 16 is fixedly connected to the top of the movable rod 15 inside the cylinder 12. The lower end of the movable rod 15 extends through to the limiting cavity 17 at the bottom of the mounting base 14. A return spring 18 is wound on the outer wall of the movable rod 15 between the top plate of the mounting base 14 and the bottom plate of the cylinder 12. A support frame 19 is movably engaged inside the limiting cavity 17. Guide grooves 20 are provided on the inner walls of both sides of the support frame 19. Limiting rods 21 are fixedly connected to the outer walls on both sides at the bottom of the movable rod 15. The movable rod 15 is movably connected to the support frame 19 by engaging the guide grooves 20 at the end of the limiting rods 21.

[0032] The port of the limiting cavity 17 extends to the side wall of the mounting base 14 near the fixed housing 6. The end of the support frame 19 near the port of the limiting cavity 17 has an inclined structure. When the reset spring 18 is in a normally relaxed state, the limiting rod 21 is located at the inclined lower end of the guide groove 20. At this time, the end of the support frame 19 is flush with the port of the limiting cavity 17.

[0033] A manual vent valve 121 is provided on the side wall of the air cylinder 12 near the top. Air inlets 122 are provided on both sides of the connection between the air cylinder 12 and the mounting base 14, and the bottom plate of the air cylinder 12 is located above the air inlets 122.

[0034] The vacuum suction cup 8 includes a fixed cylinder 81 fixedly connected to the four corners of the bottom of the fixed housing 6 and connected to each other, and a movable tube 82 that is movably provided through the bottom plate of the fixed cylinder 81. The contact point between the movable tube 82 and the bottom plate of the fixed cylinder 81 is sealed. An adjusting rod 11 is fixedly connected to the side wall of the fixed cylinder 81. The bottom of the movable tube 82 is fixedly connected to the suction cup body 83. A buffer spring 84 is wound on the outer wall of the movable tube 82 between the top of the suction cup body 83 and the bottom of the fixed cylinder 81. The suction cup body 83 pushes the movable tube 82 to move into the fixed cylinder 81. The suction cup body 83 compresses the buffer spring 84. The buffer spring 84 acts in the opposite direction to push the suction cup body 83 and the support frame 19 to clamp the target plate body 10.

[0035] The boom assembly 45 includes an electric lifting rod 451 fixedly connected to the bottom of the pneumatic slider 44 and a limiting hook 452 fixedly connected to the bottom of the electric lifting rod 451. A lifting lug 5 is movably mounted on the outer wall of the limiting hook 452 and then connected to a fixed housing 6. Connecting strips 453 are fixedly connected to the outer walls of both sides of the straight rod at the end of the electric lifting rod 451. A balance bar 454 is movably inserted through the end of each connecting strip 453. The connecting strips 453 are symmetrically arranged about the electric lifting rod 451, and are perpendicular to the guide rail 43. The balance bar 454 at the end of each connecting strip 453... 54 The bottom of the fixed housing 6 is attached to the top plate. The electric lifting rod 451 is lowered so that the suction cup body 83 at the bottom of the fixed housing 6 contacts the top surface of the target plate body 10. When the suction cup body 83 vacuums and adsorbs the target plate body 10, the balance rod 454 is rotated so that its vertical connecting strip 453 moves down until the bottom of the balance rod 454 contacts the top surface of the target plate body 10. The width of the bottom of the balance rod 454 is used to press against the target plate body 10 to prevent the suction cup body 83 from shaking on the limit hook 452 when vacuuming and adsorbing the target plate body 10, thus maintaining the stability of the target plate body 10 during hoisting.

[0036] The adjusting rods 11 at both ends of the fixed housing 6 are symmetrically arranged about the center line of the fixed housing 6. The adjusting rods 11 at the same end of the fixed housing 6 are parallel to each other. The adjusting rods 11 are used to adjust the distance between the mounting base 14 and the suction cup body 83.

[0037] The adjusting rod 11 includes an isolation cover 111 fixedly connected to the side wall of the fixed cylinder 81 and a telescopic spring rod 112 movably extending through the top of the isolation cover 111. The lower end of the telescopic spring rod 112 extends into the interior of the isolation cover 111. A limit block 113 is fixedly connected to the side wall of the moving end of the top of the telescopic spring rod 112 inside the isolation cover 111. A limit clamp 114 is fixedly connected to the lower end of the top plate of the isolation cover 111 outside the telescopic spring rod 112. A winding reel 115 is fixedly connected to the outer wall of the non-moving end of the bottom of the telescopic spring rod 112. A traction rope 116 is wound on the outer wall of the winding reel 115. The end of the traction rope 116 is fixedly connected to the end side wall of the connecting rod 117, which slides against the side wall of the isolation cover 111. The end of the connecting rod 117 extends through the outside of the isolation cover 111 and is fixedly connected to the side wall of the air cylinder 12. A winding rod 117 is wound around the outer wall of the connecting rod 117 inside the isolation cover 111. The elastic component 118, depending on the size of the target plate body 10, presses down the telescopic spring rod 112 before the suction cup body 83 adheres to the top surface of the target plate body 10 for adsorption. This causes the limiting blocks 113 on both sides of the top moving end of the telescopic spring rod 112 inside the isolation cover 111 to disengage from the limiting sleeve 114. Then, the telescopic spring rod 112 is rotated, which drives the winding reel 115 to rotate and rewind or release the traction rope 116. By rotating and rewinding or releasing the traction rope 116, the connecting rod 117 is driven to move inside the isolation cover 111. Since the air extraction pipe 13 is soft and can be straightened or bent, the distance between the air cylinder 12 at the end of the connecting rod 117 and the suction cup body 83 is adjusted. This, in turn, adjusts the distance between the bottom mounting base 14 of the air cylinder 12 and the suction cup body 83, so that the bottom support frame 19 of the mounting base 14 extends out and cooperates with the suction cup body 83 to self-lock and clamp the target plate body 10, which is convenient and quick.

[0038] Specifically, the boom beam 4 suspends the movable fixed housing 6, causing the suction cup bodies 83 at the four corners of the bottom of the fixed housing 6 to press against the top surface of the target plate body 10. The vacuum pump 7 at the top of the fixed housing 6 is activated. The vacuum pump 7, through the cooperation of the fixed housing 6, the fixed cylinder 81, and the moving pipe 82, evacuates the suction cup bodies 83. After the suction cup bodies 83 contact the target plate body 10 and are evacuated, they are adsorbed and fixed by negative pressure. While the vacuum pump 7 is evacuating the fixed housing 6, the vacuum pipe 13 is simultaneously evacuating the air cylinder 12. The air cylinder 12 is evacuated to a negative pressure. Driven by the external atmospheric pressure, the piston head 16 moves the moving rod 15 upward in the air cylinder 12 and stretches the return spring 18. When the moving rod 15 moves upward, it drives the limiting rod 21 along the inner wall of the support frame 19. The guide groove 20 slides, and the limiting rod 21 pushes the support frame 19 to slide out of the limiting cavity 17 port at the bottom of the mounting base 14. After the support frame 19 slides out of the limiting cavity 17 port, its end slope contacts the bottom of the target plate body 10. The support frame 19 is inserted into the bottom of the target plate body 10, causing the target plate body 10 to be pushed upward and pushing the suction cup body 83 and the moving tube 82 to compress the buffer spring 84, clamping the target plate body 10 between the support frame 19 and the suction cup body 83. The support frame 19 automatically locks the target plate body 10 to prevent the target plate body 10 from falling and being damaged when the suction force of the suction cup body 83 is insufficient. After the target plate body 10 is lifted, the manual air release valve 121 on the side wall of the air cylinder 12 is opened, so that the support frame 19 is pulled away from the bottom of the target plate body 10, which is convenient and practical.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-locking target material vacuum suction crane, comprising a mounting column (1) and a control computer (2) fixedly connected to the outer wall of the mounting column (1), and a mounting plate (3) fixedly connected to the outer wall of the mounting column (1) above the control computer (2), wherein a hoist arm cross beam (4) is movably arranged at the top end of the mounting plate (3). The bottom of the boom cross beam (4) is movably connected with a mounting lug (5), the bottom of the mounting lug (5) is fixedly connected with a fixed shell (6), the fixed shell (6) is a hollow structure, the top of the fixed shell (6) is provided with a vacuum pump (7) on each side, the vacuum pump (7) is communicated with the fixed shell (6), the bottom of the fixed shell (6) is provided with a vacuum chuck (8) at each corner, the vacuum chuck (8) is used for adhering and absorbing a target plate body (10), the outer wall of one side of the vacuum chuck (8) is fixedly connected with an adjusting rod (11), the end of the adjusting rod (11) is fixedly connected with a cylinder (12), the top of the cylinder (12) is communicated with the side wall of the fixed shell (6) through a soft suction pipe (13), the bottom of the cylinder (12) is fixedly connected with a mounting seat (14), the bottom plate of the cylinder (12) is movably and penetratively provided with a moving rod (15), the top of the moving rod (15) in the cylinder (12) is fixedly connected with a piston head (16), the lower end of the moving rod (15) extends into a limiting cavity (17) in the bottom of the mounting seat (14), the outer wall of the moving rod (15) between the top plate of the mounting seat (14) and the bottom plate of the cylinder (12) is wound with a return spring (18), a supporting frame (19) is movably clamped in the limiting cavity (17), the inner walls of the two sides of the supporting frame (19) are provided with guide inclined grooves (20), the outer walls of the two sides of the bottom of the moving rod (15) are respectively fixedly connected with limiting rods (21), the moving rod (15) is movably clamped with the supporting frame (19) through the guide inclined grooves (20) at the ends of the limiting rods (21); The boom cross beam (4) comprises a rotating plate (41) movably arranged at the end top of the mounting plate (3) and a rotating shaft (42) fixedly connected to the top of the rotating plate (41), the outer wall of the side of the rotating shaft (42) away from the mounting stand (1) is fixedly connected with a guide sliding rail (43), the bottom of the guide sliding rail (43) is movably provided with a pneumatic sliding block (44), the bottom of the pneumatic sliding block (44) is fixedly connected with a boom part (45), and the bottom of the boom part (45) is movably connected with the mounting lug (5); The boom part (45) comprises an electric lifting rod (451) fixedly connected to the bottom of the pneumatic sliding block (44) and a limiting hook (452) fixedly connected to the bottom of the electric lifting rod (451), the outer wall of the limiting hook (452) is movably sleeved with the mounting lug (5) after being connected with the fixed shell (6), and the outer walls of the two sides of the straight rod at the end of the electric lifting rod (451) are fixedly connected with connecting strips (453), and the ends of the connecting strips (453) are movably and penetratively provided with balance rods (454).

2. A self-locking vacuum target lifter as claimed in claim 1, characterized in that: The port of the limiting cavity (17) extends to the side wall of the mounting seat (14) close to the side of the fixed shell (6), one end of the supporting frame (19) close to the port of the limiting cavity (17) is in an inclined surface structure, when the return spring (18) is in a normal relaxation state, the limiting rods (21) are located at the inclined lower end of the guide inclined groove (20), at this time, the end of the supporting frame (19) is flush with the port of the limiting cavity (17).

3. A self-locking vacuum target lifter as claimed in claim 1, characterized in that: The side wall of the air cylinder (12) is provided with a manual air release valve (121) near the top, the air cylinder (12) is provided with air inlets (122) on both sides of the connection with the mounting seat (14), and the bottom plate of the air cylinder (12) is arranged above the air inlets (122).

4. A self-locking vacuum target lifter as claimed in claim 1, characterized in that: The rotating shaft (42) is movably sleeved with a positioning plate (46) at the top, the positioning plate (46) is fixedly connected to the side wall of the mounting column (1) at the end, and the side wall of the rotating shaft (42) below the positioning plate (46) is provided with a diagonal cable (47), and the end of the diagonal cable (47) is fixedly connected to the top of the guide slide rail (43).

5. A self-locking vacuum target lifter as claimed in claim 1, characterized in that: The connecting strips (453) are symmetrically arranged about the electric lifting rod (451), and the connecting strips (453) are perpendicular to the guide slide rail (43), and the balance bars (454) at the ends of the connecting strips (453) are fixedly attached to the top plate of the fixed shell (6).

6. A self-locking vacuum target lifter as claimed in claim 1, characterized in that: The vacuum chuck (8) comprises a fixed cylinder (81) fixedly connected to the bottom of the fixed shell (6) at four corners and a movable tube (82) movably penetrating through the bottom plate of the fixed cylinder (81), a regulating rod (11) is fixedly connected to the side wall of the fixed cylinder (81), a chuck body (83) is fixedly connected to the bottom of the movable tube (82) and is in communication, and a buffer spring (84) is wound on the outer wall of the movable tube (82) between the top of the chuck body (83) and the bottom of the fixed cylinder (81).

7. A self-locking vacuum target lifter as claimed in claim 6, characterized in that: The regulating rods (11) at the two ends below the fixed shell (6) are symmetrically arranged about the center line of the fixed shell (6), the regulating rods (11) at the same end of the fixed shell (6) are parallel to each other, and the regulating rods (11) are used to adjust the distance between the mounting seat (14) and the chuck body (83).

8. A self-locking vacuum target lifter as claimed in claim 6, characterized in that: The regulating rod (11) comprises an isolation cover (111) fixedly connected to the side wall of the fixed cylinder (81) and a telescopic spring rotating rod (112) movably penetrating through the top of the isolation cover (111), the lower end of the telescopic spring rotating rod (112) extends into the isolation cover (111), a limiting block (113) is fixedly connected to the side wall of the movable end of the telescopic spring rotating rod (112) at the top in the isolation cover (111), a limiting block (113) is fixedly connected to the top plate of the isolation cover (111) outside the telescopic spring rotating rod (112), a limiting block (113) is fixedly connected to the bottom of the non-movable end of the telescopic spring rotating rod (112), a winding reel (115) is fixedly connected to the outer wall of the telescopic spring rotating rod (112), a traction rope (116) is wound on the outer wall of the winding reel (115), the end of the traction rope (116) is fixedly connected to the end wall of the connecting rod (117) in sliding fit with the side wall of the isolation cover (111), the connecting rod (117) extends through the end of the isolation cover (111) to the outside, and the end of the connecting rod (117) is fixedly connected to the side wall of the air cylinder (12).

Images