A lifting RGV for transferring and hanging extra-long workpieces

Abstract

The present invention relates to the field of rail guided vehicle technology, specifically a lifting RGV for transferring and hanging extra-long workpieces, comprising a bottom bracket, a fixed frame fixedly mounted at one end of the top of the bottom bracket, a lifting mechanism provided on the top of the bottom bracket, a movable frame and a mounting platform connected to the lifting mechanism, a plurality of adjustment seats provided at the bottom of the mounting platform, a guide rod three fixedly mounted at both ends of the bottom of the mounting platform, both ends of the plurality of adjustment seats respectively slidingly sleeved on the outside of two guide rods three, and a position adjustment mechanism provided at one end inside the mounting platform. The beneficial effect of the present invention is that by providing a plurality of pre-fixing mechanisms, the fixed rods in the plurality of pre-fixing mechanisms are firstly made to fit with the surface of the suspended portion of the extra-long workpiece by means of a cylinder, and then the entire lifting seat is pushed up by the rotation of the threaded rod to support the suspended portion of the extra-long workpiece.

Description

Technical Field

[0001] The present invention relates to the technical field of rail guided vehicles, in particular to a lifting RGV used for transferring and hanging extra-long workpieces. Background Art

[0002] RGV is the abbreviation of Rail Guided Vehicle, which is an automated transportation equipment running on fixed tracks and is widely used in industrial logistics, production line transfer and warehousing systems.

[0003] When rehanging an overlong workpiece, the lifting mechanism in the RGV is usually used to move the movable frame from a low position to a high position, so that the overlong workpiece can be removed. The walking device at the bottom of the RGV then transports the overlong workpiece to a suitable position, and the movable frame moves downward to remove the overlong workpiece. For irregular overlong workpieces, the bottom of the workpiece cannot completely contact the surface of the movable frame, forming a suspended section. If the suspended section is at both ends of the overlong workpiece, the bottom of the overlong workpiece will bend due to the lack of support from the movable frame, which will cause the overlong workpiece to deform. The subsequent overlong workpiece will have docking misalignment problems during assembly, and the overlong workpiece will need to be replaced, thereby increasing the production cost of the equipment. Summary of the Invention

[0004] The object of the present invention is to provide a lifting RGV for transferring and hanging extra-long workpieces, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a lifting RGV for hanging extra-long workpieces, comprising a bottom bracket, a fixing frame fixedly installed at one end of the top of the bottom bracket, a lifting mechanism provided on the top of the bottom bracket, a movable frame and a mounting platform connected to the lifting mechanism, a plurality of adjustment seats provided at the bottom of the mounting platform, guide rods three fixedly installed at both ends of the bottom of the mounting platform, both ends of the plurality of adjustment seats are respectively slidably sleeved on the outside of two guide rods three, a position adjustment mechanism is provided at one end inside the mounting platform, a U-shaped fixing seat is fixedly installed on the top of the plurality of adjustment seats, a lifting seat and a supporting mechanism are provided inside the plurality of U-shaped fixing seats, an unlocking mechanism and a plurality of pre-fixing mechanisms are provided inside the plurality of lifting seats.

[0006] Preferably, the lifting mechanism includes two lifting devices and two guide slide rails. The two lifting devices are symmetrically fixedly installed on the top of the bottom bracket. The two guide slide rails are respectively fixedly installed on the two ends of the fixed bracket. The output shaft ends of the two lifting devices are fixedly installed with lifting brackets. Two symmetrically distributed sliding seats are fixedly installed on the side of the two lifting brackets close to the fixed bracket. The four sliding seats are respectively slidably mounted on the outside of their corresponding guide slide rails. The two ends of the movable frame and the two ends of the mounting platform are respectively fixedly connected to the two lifting brackets.

[0007] Preferably, the position adjustment mechanism includes a rack 1, multiple gears 1 and multiple motors 1, the rack 1 is fixedly installed inside one end of the mounting platform, the multiple gears 1 are all arranged at the bottom of the rack 1, and the multiple gears 1 are all engaged with the rack 1, the multiple gears 1 are respectively rotatably installed inside one end of the multiple adjustment seats near the rack 1, the multiple motors 1 are respectively fixedly installed on one side of the multiple adjustment seats near the rack 1, and the output shaft ends of the multiple motors 1 are respectively fixedly connected to their corresponding gears 1.

[0008] Preferably, the unlocking mechanism includes two unlocking blocks, two side plates and two guide rods, the two unlocking blocks are respectively fixedly mounted on both sides of the inner wall of the U-shaped fixing seat, the two guide rods are fixedly mounted on the top end inside the lifting seat, the two side plates are symmetrically arranged at both ends inside the lifting seat, the two ends of the top of the two side plates are respectively slidably sleeved on the outside of the two guide rods, the bottoms of the two side plates away from each other are fixedly mounted with trapezoidal blocks, the two trapezoidal blocks are slidably connected to the lifting seat, the tops of the opposite sides of the two side plates are fixedly mounted with a clamping plate group, the two ends of the outside of the two guide rods are respectively sleeved with springs, and the two ends of the four springs are respectively fixedly connected to the corresponding side plates and the inner wall of the lifting seat.

[0009] Preferably, the pre-fixing mechanism includes a fixing rod and two mounting plates, a fixing block is fixedly installed at the bottom of the fixing rod, and two guide rods are slidably sleeved inside both ends of the fixing block, the bottoms of the two guide rods are fixedly connected to the lifting seat, and the outsides of the two guide rods are sleeved with springs. The two mounting plates are respectively arranged on both sides of the fixing rod, and the tops of the two mounting plates are fixedly connected to the lifting seat. Two gears are rotatably installed between the two mounting plates, and racks are fixedly installed on both sides of the fixing rod. The two gears are respectively meshed with the two racks, and the two gears cooperate with the two sets of clamping plate groups.

[0010] Preferably, two symmetrically arranged sliding grooves are provided at both ends of the plurality of U-shaped fixing seats, two symmetrically arranged sliding rods are fixedly installed on both sides of the plurality of lifting seats, and the plurality of sliding rods are slidably installed inside their respective corresponding sliding grooves.

[0011] Preferably, the supporting mechanism includes a cylinder and a second motor, the telescopic shaft end of the cylinder is fixedly connected to the bottom of the lifting seat, the second motor is fixedly installed inside the adjustment seat, the output shaft end of the second motor is fixedly installed with a threaded rod, the external thread of the threaded rod is connected to the lifting seat, both ends of the lifting seat are slidably sleeved with limit rods, the two limit rods are fixedly installed inside the adjustment seat, and the cylinder is fixedly installed on the top of the lifting seat.

[0012] Preferably, a second guide rail is fixedly installed on the middle of the fixed frame near the movable frame, a second sliding seat is fixedly installed on the side of the movable frame near the fixed frame, and the second sliding seat is slidably installed on the outside of the second guide rail.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] By setting up multiple pre-fixing mechanisms, the fixing rods in the multiple pre-fixing mechanisms are first made to fit with the surface of the suspended part of the over-long workpiece through the cylinder, and then the entire lifting seat is pushed up by the rotation of the threaded rod to support the suspended part of the over-long workpiece. This solves the problem in the prior art that the bottom part of the over-long workpiece is bent due to the lack of support from the movable frame, which in turn causes deformation of the over-long workpiece, and the problem of docking misalignment of the over-long workpiece during subsequent assembly. At the same time, the fixing rods in the multiple pre-fixing mechanisms can adapt to the surfaces of different over-long workpieces and flexibly adjust their positions to ensure the supporting effect of the device on different over-long workpieces.

[0015] The lifting seat is raised by rotating the threaded rod to support the extra-long workpiece, so as to achieve the effect of accurately adjusting the height of the lifting seat, avoiding the lifting seat from being over-raised or failing to reach the best supporting height, which affects the supporting effect on the extra-long workpiece. By setting up multiple adjustment seats, multiple suspended positions in the extra-long workpiece can be supported, thereby improving the supporting effect of the device on the extra-long workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the local structure of the top of the bottom support of the present invention;

[0018] Figure 3 This is a structural diagram of one side of the lifting device of the present invention;

[0019] Figure 4This is a schematic diagram of the internal structure of the installation platform of the present invention;

[0020] Figure 5 This is a schematic diagram of the bottom structure of the mounting platform of the present invention;

[0021] Figure 6 This is a schematic diagram of the top structure of the adjustment seat of the present invention;

[0022] Figure 7 This is a schematic diagram of the external structure of the lifting seat of the present invention;

[0023] Figure 8 The interior of the lifting seat and the pre-fixing mechanism of the present invention;

[0024] Figure 9 This is a schematic diagram of the internal structure of the lifting seat of the present invention;

[0025] Figure 10 For the present invention Figure 9 A partial enlarged view in FIG;

[0026] Figure 11 It is a structural schematic diagram of the pre-fixing mechanism of the present invention;

[0027] Figure 12 It is a partial cross-sectional view of the adjustment seat of the present invention.

[0028] In the accompanying drawings, the list of components represented by each reference numeral is as follows: 1. Bottom bracket; 2. Fixed bracket; 3. Guide slide rail 1; 4. Lifting equipment; 5. Lifting bracket; 6. Sliding seat 1; 7. Movable frame; 8. Mounting platform; 9. Adjusting seat; 10. Guide rod 3; 11. Rack 1; 12. Gear 1; 13. Motor 1; 14. U-shaped fixed seat; 15. Lifting seat; 16. Unlocking block; 17. Side plate; 18. Trapezoidal block; 19. Clamping plate group; 20. Guide rod 1; 21. Spring 1; 22. Fixed rod; 23. Fixed block; 24. Guide rod 2; 25. Spring 2; 26. Mounting plate; 27. Gear 2; 28. Rack 2; 29. ​​Slide groove; 30. Slide rod; 31. Cylinder; 32. Motor 2; 33. Lifting seat; 34. Limiting rod; 35. Guide slide rail 2; 36. Sliding seat 2; 37. Threaded rod. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] The present invention provides a technical solution: Figures 1-12The shown lifting RGV for hanging extra-long workpieces includes a bottom bracket 1, a fixing frame 2 is fixedly installed at one end of the top of the bottom bracket 1, a lifting mechanism is provided on the top of the bottom bracket 1, a movable frame 7 and a mounting platform 8 are connected to the lifting mechanism, and a plurality of adjustment seats 9 are provided at the bottom of the mounting platform 8. Guide rods three 10 are fixedly installed at both ends of the bottom of the mounting platform 8, and both ends of the plurality of adjustment seats 9 are respectively slidably sleeved on the outside of the two guide rods three 10. A position adjustment mechanism is provided at one end inside the mounting platform 8, and a U-shaped fixing seat 14 is fixedly installed on the top of the plurality of adjustment seats 9. A lifting seat 15 and a supporting mechanism are provided inside the plurality of U-shaped fixing seats 14, and an unlocking mechanism and a plurality of pre-fixing mechanisms are provided inside the plurality of lifting seats 15.

[0031] The lifting mechanism includes two lifting devices 4 and two guide rails 3. The two lifting devices 4 are symmetrically fixed on the top of the bottom bracket 1. The two guide rails 3 are respectively fixed on the two ends of the fixed frame 2. The output shaft ends of the two lifting devices 4 are fixedly installed with lifting brackets 5. Two lifting brackets 5 are fixedly installed on the side close to the fixed frame 2. Two symmetrically distributed sliding seats 6 are respectively slidably sleeved on the outside of their corresponding guide rails 3. The two ends of the movable frame 7 and the two ends of the mounting platform 8 are respectively fixedly connected to the two lifting brackets 5.

[0032] The position adjustment mechanism includes a rack 11, multiple gears 12 and multiple motors 13. The rack 11 is fixedly installed inside one end of the mounting platform 8. The multiple gears 12 are all arranged at the bottom of the rack 11, and the multiple gears 12 are all engaged with the rack 11. The multiple gears 12 are respectively rotatably installed inside the multiple adjustment seats 9 near one end of the rack 11. The multiple motors 13 are respectively fixedly installed on one side of the multiple adjustment seats 9 near the rack 11, and the output shaft ends of the multiple motors 13 are respectively fixedly connected to their corresponding gears 12.

[0033] The unlocking mechanism includes two unlocking blocks 16, two side panels 17 and two guide rods 20. The two unlocking blocks 16 are respectively fixedly mounted on both sides of the inner wall of the U-shaped fixing seat 14. The two guide rods 20 are both fixedly mounted on the top of the lifting seat 15. The two side panels 17 are symmetrically arranged at both ends of the lifting seat 15. The two ends of the top of the two side panels 17 are respectively slidably mounted on the outside of the two guide rods 20. The bottom of the two side panels 17 away from each other is fixedly mounted with a trapezoidal block 18. The two trapezoidal blocks 18 are both slidably connected to the lifting seat 15. The tops of the opposite sides of the two side panels 17 are fixedly mounted with a clamping plate group 19. The two ends of the outside of the two guide rods 20 are both sleeved with springs 21. The two ends of the four springs 21 are respectively fixedly connected to the corresponding side panels 17 and the inner wall of the lifting seat 15.

[0034] The pre-fixing mechanism includes a fixing rod 22 and two mounting plates 26. A fixing block 23 is fixedly installed at the bottom of the fixing rod 22. Guide rods 24 are slidably sleeved inside both ends of the fixing block 23. The bottoms of the two guide rods 24 are fixedly connected to the lifting seat 15. The outsides of the two guide rods 24 are sleeved with springs 25. The two mounting plates 26 are respectively arranged on both sides of the fixing rod 22, and the tops of the two mounting plates 26 are fixedly connected to the lifting seat 15. Two gears 27 are rotatably installed between the two mounting plates 26. Racks 28 are fixedly installed on both sides of the fixing rod 22. The two gears 27 are respectively engaged with the two racks 28, and the two gears 27 cooperate with the two sets of card plate groups 19.

[0035] Two symmetrically arranged sliding grooves 29 are provided at both ends of the multiple U-shaped fixing seats 14, and two symmetrically arranged sliding rods 30 are fixedly installed on both sides of the multiple lifting seats 15. The multiple sliding rods 30 are slidably installed in the interior of their corresponding sliding grooves 29.

[0036] The supporting mechanism includes a cylinder 31 and a second motor 32. The telescopic shaft end of the cylinder 31 is fixedly connected to the bottom of the lifting seat 15. The second motor 32 is fixedly installed inside the adjusting seat 9. The output shaft end of the second motor 32 is fixedly installed with a threaded rod 37. The external thread of the threaded rod 37 is connected to the lifting seat 33. Both ends of the lifting seat 33 are slidably sleeved with limit rods 34. The two limit rods 34 are fixedly installed inside the adjusting seat 9. The cylinder 31 is fixedly installed on the top of the lifting seat 33.

[0037] A second guide rail 35 is fixedly installed on the middle of the fixed frame 2 close to the movable frame 7 , and a second sliding seat 36 is fixedly installed on the side of the movable frame 7 close to the fixed frame 2 . The second sliding seat 36 is slidably installed on the outside of the second guide rail 35 .

[0038] Working principle: The two lifting devices 4 in the present invention are both worm gear lifts. In the initial state, the movable frame 7 is in a low position. When the extra-long workpiece is to be hung, the movable frame 7 is moved to the bottom of the extra-long workpiece by the walking device at the bottom of the bottom bracket 1, and then the two lifting devices 4 are started. The two lifting devices 4 push the two lifting brackets 5 to move upward, thereby driving the movable frame 7 to move upward to a high position, so that the extra-long workpiece can be removed. While the two lifting brackets 5 move up and down, the four sliding seats 1 6 move along their respective corresponding guide rails 1 3. The mutual cooperation between the four sliding seats 1 6 and the two guide rails 1 3 improves the stability of the two lifting brackets 5 driving the movable frame 7 to rise and fall. While the movable frame 7 moves up and down, it drives the sliding seat 2 36 to move along the guide rail 2 35. With the mutual cooperation between the sliding seat 2 36 and the guide rail 2 35, the stability of the movable frame 7 during lifting and falling is further improved.

[0039] When the overlong workpiece is located at the top of the movable frame 7, the adjustment seat 9 with a close distance is adjusted to this position according to the position where the bottom of the overlong workpiece cannot be supported by the movable frame 7. The operation steps of the adjustment seat 9 and the corresponding motor 13, unlocking mechanism, multiple pre-fixing mechanisms and supporting mechanism are as follows: Motor 13 drives gear 12 to rotate, and under the action of the mutual engagement of gear 12 and rack 11, the adjustment seat 9 can move along the two guide rods 3 10 until the adjustment seat 9 moves to the position where the bottom of the overlong workpiece is suspended. Then, the cylinder 31 is started first, and the cylinder 31 pushes the lifting seat 15 to move upward. While the lifting seat 15 moves, it drives the two sliding rods 30 on both sides thereof to slide in their respective corresponding slide grooves 29. The mutual cooperation between the four sliding rods 30 and the four slide grooves 29 improves the stability of the lifting seat 15 when it is lifted and lowered. As the lifting seat 15 rises, multiple pre-fixing mechanisms move accordingly, and one of the pre-fixing mechanisms The movement process is as follows: when the fixed rod 22 touches the surface of the over-long workpiece, as the lifting base 15 continues to rise, the fixed rod 22 drives the fixed block 23 at its bottom to show a downward trend relative to the lifting base 15, and the fixed block 23 slides along the two guide rods 24 and squeezes the two springs 25. At the same time, since the two racks 28 are respectively engaged with the two gears 27, the two gears 27 rotate accordingly during this process. When the lifting base 15 moves to the top, the two unlocking blocks 16 at this time act on the two trapezoidal blocks 18 respectively, and the two trapezoidal blocks 18 are forced to move toward the inside of the lifting base 15, and the two ends of the top of the two side plates 17 move along the two guide rods 1 20 and squeeze the four springs 1 21. As the two side plates 17 approach each other, the two sets of clamping plate groups 19 are inserted into their corresponding gears 2 27, fixing the positions of the two gears 27, and the position of the fixed rod 22 is fixed. The fixing rods 22 in the multiple pre-fixing mechanisms are all in contact with the surface of the over-long workpiece. Finally, the motor 2 32 is started to drive the threaded rod 37 to rotate. At the same time, the lifting seat 33 rises under the action of the two limit rods 34, and the lifting seat 15 is driven to rise as a whole, thereby supporting the suspended position of the bottom of the over-long workpiece, solving the problem in the prior art that the bottom part of the over-long workpiece is bent due to the lack of support from the movable frame 7, which will lead to deformation of the over-long workpiece, and the problem of docking misalignment will occur during subsequent assembly of the over-long workpiece. The lifting seat 15 is raised to support the over-long workpiece by rotating the threaded rod 37, so as to achieve the effect of accurately adjusting the height of the lifting seat 15, avoiding the lifting seat 15 from being over-raised or failing to reach the best supporting height, affecting the supporting effect of the over-long workpiece. At the same time, the fixing rods 22 in the multiple pre-fixing mechanisms can adapt to the surfaces of different over-long workpieces, flexibly adjust the position, and ensure the supporting effect of the device on different over-long workpieces.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0041] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A lifting RGV for transferring and hanging an extra-long workpiece, comprising a bottom support (1), characterized in that: A fixing frame (2) is fixedly installed at one end of the top of the bottom bracket (1), a lifting mechanism is provided at the top of the bottom bracket (1), a movable frame (7) and a mounting platform (8) are connected to the lifting mechanism, a plurality of adjustment seats (9) are provided at the bottom of the mounting platform (8), a guide rod three (10) is fixedly installed at both ends of the bottom of the mounting platform (8), both ends of the plurality of adjustment seats (9) are respectively slidably sleeved on the outside of two guide rods three (10), a position adjustment mechanism is provided at one end inside the mounting platform (8), a U-shaped fixing seat (14) is fixedly installed on the top of the plurality of adjustment seats (9), a lifting seat (15) and a supporting mechanism are provided inside the plurality of U-shaped fixing seats (14), and an unlocking mechanism and a plurality of pre-fixing mechanisms are provided inside the plurality of lifting seats (15); The position adjustment mechanism includes a rack (11), a plurality of gears (12) and a plurality of motors (13), wherein the rack (11) is fixedly mounted inside one end of the mounting platform (8), the plurality of gears (12) are all arranged at the bottom of the rack (11), and the plurality of gears (12) are all meshed with the rack (11), the plurality of gears (12) are respectively rotatably mounted inside one end of the plurality of adjustment seats (9) close to the rack (11), the plurality of motors (13) are respectively fixedly mounted on one side of the plurality of adjustment seats (9) close to the rack (11), and the output shaft ends of the plurality of motors (13) are respectively fixedly connected to the corresponding gears (12); The unlocking mechanism comprises two unlocking blocks (16), two side plates (17) and two guide rods (20). The two unlocking blocks (16) are fixedly mounted on both sides of the inner wall of the U-shaped fixing seat (14). The two guide rods (20) are fixedly mounted on the top of the lifting seat (15). The two side plates (17) are symmetrically arranged at the two ends of the lifting seat (15). The two ends of the top of the two side plates (17) are slidably mounted on the two guide rods (20). On the outside, the bottoms of the two side panels (17) away from each other are fixedly mounted with trapezoidal blocks (18), and the two trapezoidal blocks (18) are slidably connected to the lifting seat (15). The tops of the two side panels (17) on the opposite sides are fixedly mounted with a clamping plate group (19), and both ends of the two guide rods (20) are sleeved with springs (21), and the two ends of the four springs (21) are respectively fixedly connected to the corresponding side panels (17) and the inner wall of the lifting seat (15); The pre-fixing mechanism includes a fixing rod (22) and two mounting plates (26), a fixing block (23) is fixedly installed at the bottom of the fixing rod (22), and guide rods (24) are slidably sleeved inside both ends of the fixing block (23), the bottoms of the two guide rods (24) are fixedly connected to the lifting seat (15), and the outsides of the two guide rods (24) are sleeved with springs (25), the two mounting plates (26) are respectively arranged on both sides of the fixing rod (22), and the tops of the two mounting plates (26) are fixedly connected to the lifting seat (15), and two gears (27) are rotatably installed between the two mounting plates (26), and racks (28) are fixedly installed on both sides of the fixing rod (22), the two gears (27) are respectively meshed with the two racks (28), and the two gears (27) are respectively matched with the two sets of card plate groups (19); Two symmetrically arranged sliding grooves (29) are provided at both ends of the plurality of U-shaped fixing seats (14), and two symmetrically arranged sliding rods (30) are fixedly installed on both sides of the plurality of lifting seats (15), and the plurality of sliding rods (30) are respectively slidably installed inside the corresponding sliding grooves (29).

2. The lifting RGV for transferring and hanging an extra-long workpiece according to claim 1, characterized in that: The lifting mechanism includes two lifting devices (4) and two guide rails (3). The two lifting devices (4) are symmetrically fixedly installed on the top of the bottom bracket (1). The two guide rails (3) are respectively fixedly installed on the two ends of the fixed frame (2). The output shaft ends of the two lifting devices (4) are fixedly installed with lifting brackets (5). Two symmetrically distributed sliding seats (6) are fixedly installed on the side of the two lifting brackets (5) close to the fixed frame (2). The four sliding seats (6) are respectively slidably sleeved on the outside of their corresponding guide rails (3). The two ends of the movable frame (7) and the two ends of the mounting platform (8) are fixedly connected to the lifting brackets (5).

3. The lifting RGV for transferring and hanging an extra-long workpiece according to claim 1, characterized in that: The supporting mechanism includes a cylinder (31) and a second motor (32), the telescopic shaft end of the cylinder (31) is fixedly connected to the bottom of the lifting seat (15), the second motor (32) is fixedly installed inside the adjustment seat (9), the output shaft end of the second motor (32) is fixedly installed with a threaded rod (37), the external thread of the threaded rod (37) is connected to the lifting seat (33), both ends of the lifting seat (33) are slidably sleeved with limit rods (34), the two limit rods (34) are fixedly installed inside the adjustment seat (9), and the cylinder (31) is fixedly installed on the top of the lifting seat (33).

4. The lifting RGV for transferring and hanging an extra-long workpiece according to claim 1, characterized in that: A second guide rail (35) is fixedly installed on the middle of the fixed frame (2) close to the movable frame (7), and a second sliding seat (36) is fixedly installed on the side of the movable frame (7) close to the fixed frame (2). The second sliding seat (36) is slidably installed on the outside of the second guide rail (35).

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