Gear laser welding clamp

Abstract

The invention discloses a gear laser welding clamp, and relates to the technical field of manufacturing and automation, the gear laser welding clamp comprises a base, a butt joint device, a clamping device and an overturning device are arranged above the base, after a gear is installed, a rotating frame is rotated to be matched with a containing frame, a clamping block, a rotating button and a rotating rod to conduct rotary welding on the gear, and the gear can be welded conveniently. By means of accurate control and high energy density of laser beams, high-quality welding can be achieved on the joint portion of the gear, heat affected zones can be reduced, deformation and stress can be reduced, and therefore the strength and durability of a welding joint are improved, and if rotation is stopped, a limiting block is clamped into a limiting groove, at the moment, a turn button cannot rotate, and welding is completed. And a limiting block is matched with a contact block and a spiral groove, so that the limiting block drives the contact block to move rightwards, butt joint of the radius size of the gear can be properly adjusted, and the gear can adapt to the proper gear size.

Description

Technical Field

[0001] The invention relates to the technical field of manufacturing and automation, in particular to a gear laser welding fixture. Background Art

[0002] Gear laser welding fixtures are often used to achieve high-precision welding during gear manufacturing. The design goal of this fixture is to ensure that the gear remains stable and centered during laser welding, thereby improving welding quality and efficiency. It uses a high-energy laser beam to locally heat the welding material and is suitable for welding with high precision and complex geometries.

[0003] The patent with the patent announcement number CN202667942U involves the field of manufacturing and automation technology, including a power rotating mechanism, a welding platform, a gear ring clamping mechanism, a spoke clamping mechanism and a gear ring tightening mechanism; the welding platform is fixedly connected to the power rotating mechanism, the gear ring clamping mechanism is installed on the welding platform to implement axial clamping of the gear ring, the spoke clamping mechanism is installed on the welding platform to implement axial clamping of the spoke, and the gear ring tightening mechanism is installed on the welding platform to implement radial clamping of the gear ring. The gear ring in this patent is radially contracted and clamped by the gear ring tightening mechanism to ensure the concentricity of the gear ring; the gear ring is axially clamped by the gear ring clamping mechanism, which not only ensures the end face accuracy of the gear ring, but also plays a role in splash protection; the spoke is axially clamped by the spoke clamping mechanism to prevent the spoke welding deformation and improve the welding accuracy. The whole set of equipment can effectively prevent welding deformation, protect gears, and improve welding accuracy and welding efficiency.

[0004] In the above patent, the whole set of equipment can effectively prevent welding deformation, protect gears, and improve welding accuracy and efficiency. However, the current measuring equipment has the following problems: if the gears are difficult to rotate and weld, the molten pool during the welding process may not be evenly distributed, resulting in uneven welds, affecting strength and durability. If the rotating gears are not limited, external forces may accidentally cause rotation, thereby causing welding operation errors. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a gear laser welding fixture, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a gear laser welding fixture, comprising a base, a docking device, a clamping device and a flipping device are arranged above the base; wherein the docking device comprises a fixed frame, an adjusting frame, a fixed block, a knob, a limit rod, a limit block, a rotating rod, an elastic telescopic rod, a placement frame, a rotating frame, a clamping block, a bearing, a blocking wheel and a contact block, the fixed frame is fixedly mounted on the top of the base, the adjusting frame is rotatably mounted on the inner wall of the fixed frame, the fixed block is fixedly mounted on the top of the adjusting frame, the knob is rotatably mounted on the right side of the fixed block, a limit slot is provided on the right side of the knob, the limit rod is rotatably mounted on the right side of the knob, and the limit block is slidably mounted on the circumferential surface of the limit rod. One side of the rotating rod is fixedly installed on the left side of the rotating knob, and the other side of the rotating rod rotates and penetrates the inner and outer walls of the fixed block. The fixed end of the elastic telescopic rod is fixedly installed on the top of the base, and the placement frame is fixedly installed on the output end of the elastic telescopic rod. The rotating frame is rotatably installed on the inner wall of the placement frame, and the clamping block is rotatably installed on the surface of the placement frame. After the gear is installed, the gear can be rotationally welded by rotating the rotating frame to cooperate with the placement frame, the clamping block, the rotating knob and the rotating rod. A circular groove is opened on the surface of the rotating frame, and the bearing is arranged between the placement frame and the rotating frame. The resisting wheel is rotatably installed on the inner wall of the bearing, and the contact block is fixedly installed on the circumferential surface of the resisting wheel. If the rotation stops, the limit block is stuck in the limit groove, and the rotating knob cannot rotate at this time.

[0007] According to the above technical solution, a spiral groove is provided on the circumferential surface of the rotating rod, and the spiral groove is threadedly connected to the resisting wheel. The contact block is driven to rotate by rotating the resisting wheel, and the spiral groove drives the contact block to move to the right.

[0008] According to the above technical solution, the clamping device includes a tripod, a sliding column and a receiving plate. The tripod is fixedly mounted on the circumferential surface of the rotating rod, the sliding column is slidably mounted on the circumferential surface of the rotating rod, a No. 1 spring is arranged between the sliding column and the rotating rod, and the receiving plate is fixedly mounted on the circumferential surface of the sliding column. The contact block moves to contact the sliding column, so that the sliding column moves to the right and drives the receiving plate to move.

[0009] According to the above technical solution, the clamping device also includes an L-shaped slider and a rotating rod, one side of the L-shaped slider is slidably installed on the inner wall of the tripod, one side of the rotating rod is rotatably installed on the surface of the L-shaped slider, and the other side of the rotating rod is rotatably installed on the outer wall of the receiving plate. The receiving plate moves to cause the rotating rod to rotate upward, and the rotation of the rotating rod drives the L-shaped slider to move upward and limits the moving distance of the L-shaped slider through the tripod until it contacts the inner wall of the gear.

[0010] According to the above technical solution, the clamping device also includes a receiving block, a round rod and a positioning groove. The receiving block is fixedly installed on the front side of the fixed frame, the round rod is fixedly passed through the inner and outer walls of the fixed frame, and the positioning groove is fixedly installed on the outer wall of the adjusting frame. The round rod is released from the restriction so that the round rod can rotate freely.

[0011] According to the above technical solution, the flipping device includes a pressure plate, a connecting rod, a No. 2 spring and a limit column. The connecting rod slides through the inner and outer walls of the receiving block. The pressure plate is fixedly installed on the top of the connecting rod. The No. 2 spring is arranged between the receiving block and the pressure plate. One side of the limit column is fixedly installed on the surface of the connecting rod, and the other side of the limit column slides through the inner and outer walls of the round rod. By pressing the pressure plate, the connecting rod is driven to move downward and the No. 2 spring is compressed at the same time, so that the limit column is disengaged from the round rod.

[0012] According to the above technical solution, the flipping device also includes a mounting frame and a hollow block. The mounting frame is fixedly mounted on the top of the base, and the hollow block is fixedly mounted on the top of the mounting frame to support the clamping device after flipping.

[0013] According to the above technical solution, the flipping device also includes an insert block, a slide plate, a No. 3 spring and a limiting plate. The insert block is slidably installed on the inner wall of the hollow block, the slide plate is slidably installed on the inner wall of the hollow block, the No. 3 spring is arranged between the insert block and the slide plate, the limiting plate is fixedly installed on the rear side of the mounting frame, the top of the insert block is arranged as an inclined surface, and a No. 4 spring is arranged between the slide plate and the hollow block. If the adjusted frame needs to be released after rotation, the slide plate is moved by pulling the slide plate outward. The movement of the slide plate will stretch the No. 3 spring. When the No. 3 spring is stretched to a certain extent, it will pull the insert block to move. At this time, the insert block is disengaged from the positioning groove. Only then can the adjusting frame be rotated freely. The time during equipment installation and replacement of welding angles can be significantly reduced through rapid fixing and disassembly.

[0014] The present invention provides a gear laser welding fixture, which has the following beneficial effects: (1) The invention, through the setting of the docking device, after the gear is installed, the gear can be rotationally welded by rotating the rotating frame in conjunction with the placement frame, the clamping block, the knob and the rotating rod. The rotary welding utilizes the precise control and high energy density of the laser beam to achieve high-quality welding at the joint part of the gear, which can reduce the heat-affected zone, reduce deformation and stress, and thus improve the strength and durability of the welded joint. If the rotation is stopped, the limit block is stuck in the limit groove, and the knob cannot be rotated at this time, preventing external force from touching the knob and causing an operation error. At this time, the contact block is driven to rotate by rotating the limit block, and the limit block drives the contact block to move to the right through the spiral groove, so that the radius of the gear can be appropriately adjusted to adapt to the appropriate gear size.

[0015] (2) The invention, through the setting of the clamping device, after the gear is placed, the inner wall of the gear can be supported by the contact block in cooperation with the sliding column, the receiving plate, the rotating rod, the L-shaped slider and the tripod to clamp the gear. The triangular support can effectively disperse the force applied to the gear and reduce stress concentration, thereby reducing deformation or stress concentration problems that may occur during the processing. In this way, the geometric accuracy and functional consistency of the gear can be ensured. The restriction of the rotating frame by the clamping block is released and then removed. The circular rod is driven to rotate by the rotation of the adjustment frame, and the positioning groove is driven to move at the same time. At this time, the adjustment frame can be rotated 90° to the right, and the gear can be welded from the circumferential surface to the top of the gear. By welding at different angles, the size and shape of the gear can be more accurately controlled, thereby reducing the subsequent processing steps, which can reduce production costs and improve manufacturing efficiency.

[0016] (3) The invention, through the setting of the flipping device, supports the adjustment frame by pressing the pressure plate in conjunction with the connecting rod, No. 2 spring, limiting column, round rod, positioning groove, plug block, and No. 3 spring to prevent the adjustment frame from having no support after rotation, resulting in unstable position after rotation, thereby causing operational errors during welding. If the adjustment frame needs to be released after rotation, the slide plate is pulled outward to move it. The movement of the slide plate will stretch the No. 3 spring. When the No. 3 spring is stretched to a certain extent, it will pull the plug block to move. At this time, the plug block will be disengaged from the positioning groove. Only then can the adjustment frame be freely rotated. Through rapid fixing and disassembly, the time during equipment installation and replacement of welding angles can be significantly reduced, reducing downtime and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the position relationship between the clamping block and the rotating frame of the present invention; Figure 3 This is a schematic diagram of the positional relationship between the blocking wheel and the contact block of the present invention; Figure 4 This is a schematic diagram of the structural relationship between the position of the rotating rod and the sliding column of the present invention; Figure 5 This is a schematic diagram of the position relationship between the limit block and the limit rod of the present invention; Figure 6 This is a schematic diagram of the structural relationship between the receiving block and the round rod of the present invention; Figure 7 It is a schematic diagram of the internal structure of the hollow block of the present invention.

[0018] In the figure: 1, base; 10, fixed frame; 11, adjustment frame; 12, fixed block; 13, knob; 14, limit rod; 15, limit block; 16, rotating rod; 17, elastic telescopic rod; 18, placement frame; 19, rotating frame; 110, clamping block; 111, bearing; 112, blocking wheel; 113, contact block; 20, tripod; 21, sliding column; 22, receiving plate; 23, L-shaped slider; 24, rotating rod; 25, receiving block; 26, round rod; 27, positioning groove; 31, pressure plate; 32, connecting rod; 33, No. 2 spring; 34, limit column; 35, mounting frame; 36, hollow block; 37, plug block; 38, slide plate; 39, No. 3 spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 5An embodiment of the present invention is: a gear laser welding fixture, comprising a base 1, a docking device is arranged above the base 1, and the docking device comprises a fixed frame 10, an adjusting frame 11, a fixed block 12, a knob 13, a limit rod 14, a limit block 15, a rotating rod 16, an elastic telescopic rod 17, a placement frame 18, a rotating frame 19, a clamping block 110, a bearing 111, a blocking wheel 112 and a contact block 113. The fixed frame 10 is fixedly mounted on the top of the base 1, the adjusting frame 11 is rotatably mounted on the inner wall of the fixed frame 10, the fixed block 12 is fixedly mounted on the top of the adjusting frame 11, the rotating knob 13 is rotatably mounted on the right side of the fixed block 12, a limit slot is provided on the right side of the rotating knob 13, the limit rod 14 is rotatably mounted on the right side of the rotating knob 13, and the limit block 15 is slidably mounted on the circumferential surface of the limit rod 14 to prevent external force from touching the rotating knob 13 and causing an operation error. One side of 6 is fixedly mounted on the left side of the knob 13, and the other side of the rotating rod 16 rotates to penetrate the inner and outer walls of the fixed block 12. The fixed end of the elastic telescopic rod 17 is fixedly mounted on the top of the base 1, the placement frame 18 is fixedly mounted on the output end of the elastic telescopic rod 17, and the rotating frame 19 is rotatably mounted on the inner wall of the placement frame 18. The clamping block 110 is rotatably mounted on the surface of the placement frame 18. A circular groove is provided on the surface of the rotating frame 19. The bearing 111 is arranged between the placement frame 18 and the rotating frame 19. The resisting wheel 112 is rotatably mounted on the inner wall of the bearing 111, and the contact block 113 is fixedly mounted on the circumferential surface of the resisting wheel 112. At this time, the gear can be rotationally welded. Rotary welding utilizes the precise control and high energy density of the laser beam to achieve high-quality welding at the joint part of the gear, which can reduce the heat affected zone, reduce deformation and stress, and thus improve the strength and durability of the welded joint.

[0021] A spiral groove is formed on the circumferential surface of the rotating rod 16 , and the spiral groove is threadedly connected to the resisting wheel 112 , so that the resisting wheel 112 drives the contact block 113 to move rightward through the spiral groove.

[0022] When this embodiment is working, after the gear is installed, the rotating frame 19 is rotated to fit with the placement frame 18, and the rotating frame 19 is restricted by rotating the clamping block 110. At this time, the rotating rod 16 is driven to rotate by the turning knob 13. At this time, the gear can be rotationally welded. Rotary welding utilizes the precise control and high energy density of the laser beam to achieve high-quality welding at the joint part of the gear, which can reduce the heat-affected zone, reduce deformation and stress, and thus improve the strength and durability of the welded joint. If the rotation is stopped, the limit block 15 is engaged in the limit groove. At this time, the turning knob 13 cannot be rotated to prevent external force from touching the turning knob 13 and causing operational errors. At this time, the contact block 113 is driven to rotate by rotating the resisting wheel 112, and the resisting wheel 112 drives the contact block 113 to move to the right through the spiral groove. The radius of the gear can be appropriately adjusted to adapt to the appropriate gear size.

[0023] See also Figure 1-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, a clamping device and a flipping device are arranged above the base 1, and the clamping device includes a tripod 20, a sliding column 21 and a receiving plate 22. The tripod 20 is fixedly mounted on the circumferential surface of the rotating rod 16, and the sliding column 21 is slidably mounted on the circumferential surface of the rotating rod 16. A No. 1 spring is arranged between the sliding column 21 and the rotating rod 16, and the sliding column 21 is driven to reset by the arranged No. 1 spring. The receiving plate 22 is fixedly mounted on the circumferential surface of the sliding column 21, so that the sliding column 21 moves to the right to drive the receiving plate 22 to move, and the movement of the receiving plate 22 causes the rotating rod 24 to rotate upward.

[0024] The clamping device also includes an L-shaped slider 23 and a rotating rod 24. One side of the L-shaped slider 23 is slidably mounted on the inner wall of the tripod 20, one side of the rotating rod 24 is rotatably mounted on the surface of the L-shaped slider 23, and the other side of the rotating rod 24 is rotatably mounted on the outer wall of the receiving plate 22 to clamp the gear. The triangular support can effectively disperse the force applied to the gear and reduce stress concentration, thereby reducing deformation or stress concentration problems that may occur during the processing process, thereby ensuring the geometric accuracy and functional consistency of the gear.

[0025] The clamping device also includes a receiving block 25, a round rod 26 and a positioning groove 27. The receiving block 25 is fixedly installed on the front side of the fixed frame 10, the round rod 26 is fixedly passed through the inner and outer walls of the fixed frame 10, and the positioning groove 27 is fixedly installed on the outer wall of the adjusting frame 11. The adjusting frame 11 is rotated to drive the round rod 26 to rotate, and at the same time drive the positioning groove 27 to move. At this time, the adjusting frame 11 can be rotated 90° to the right.

[0026] The flipping device includes a pressure plate 31, a connecting rod 32, a No. 2 spring 33 and a limit column 34. The connecting rod 32 slides through the inner and outer walls of the receiving block 25. The pressure plate 31 is fixedly installed on the top of the connecting rod 32. The No. 2 spring 33 is arranged between the receiving block 25 and the pressure plate 31. The pressure plate 31 is reset by the arranged No. 2 spring 33. One side of the limit column 34 is fixedly installed on the surface of the connecting rod 32, and the other side of the limit column 34 slides through the inner and outer walls of the round rod 26. By pressing the pressure plate 31, the connecting rod 32 is driven to move downward and the No. 2 spring 33 is compressed at the same time, so that the limit column 34 is separated from the round rod 26.

[0027] The turning device further comprises a mounting frame 35 and a hollow block 36. The mounting frame 35 is fixedly mounted on the top of the base 1, and the hollow block 36 is fixedly mounted on the top of the mounting frame 35, so that the turning device can rotate.

[0028] The flipping device also includes an insert block 37, a slide plate 38, a No. 3 spring 39 and a limiting plate 310. The insert block 37 is slidably installed on the inner wall of the hollow block 36, and the slide plate 38 is slidably installed on the inner wall of the hollow block 36. The No. 3 spring 39 is arranged between the insert block 37 and the slide plate 38. The insert block 37 is reset by the arranged No. 3 spring 39. The limiting plate 310 is fixedly installed on the rear side of the mounting frame 35. The positioning groove 27 is supported by the limiting plate 310, that is, the adjusting frame 11 is supported to prevent the adjusting frame 11 from having nowhere to support after rotation, resulting in an unstable position after rotation, thereby causing operational errors during welding. The top of the insert block 37 is arranged as an inclined surface, and a No. 4 spring is arranged between the slide plate 38 and the hollow block 36. The slide plate 38 is reset by the arranged No. 4 spring.

[0029] When the present embodiment is working, after the gear is placed, the contact block 113 is moved to contact the sliding column 21, so that the sliding column 21 moves to the right and drives the receiving plate 22 to move. The receiving plate 22 moves so that the rotating rod 24 rotates upward. The rotating rod 24 rotates to drive the L-shaped slider 23 to move upward and the moving distance of the L-shaped slider 23 is limited by the tripod 20 until it contacts the inner wall of the gear. At this time, the inner wall of the gear can be supported to clamp the gear. The triangular support can effectively disperse the force applied to the gear and reduce stress concentration, thereby reducing deformation or stress concentration problems that may occur during processing. In this way, the geometric accuracy and functional consistency of the gear can be ensured. The restriction of the clamping block 110 on the rotating frame 19 is released and then removed. The round rod 26 is driven to rotate by the adjusting frame 11, and the positioning groove 27 is driven to move at the same time. At this time, the adjusting frame 11 can be rotated 90° to the right, and the gear can be welded from the circumferential surface to the top of the gear. By welding at different angles, the size and shape of the gear can be more accurately controlled, thereby reducing subsequent processing steps, which can reduce production costs and improve manufacturing efficiency. By pressing the pressure plate 31, the connecting rod 32 is driven downward and the No. 2 spring 33 is compressed, so that the limiting column 34 is disengaged from the round rod 26. At this time, the round rod 26 is free from the restriction so that the round rod 26 can rotate freely. At this time, the outer wall of the positioning groove 27 is brought into contact with the inclined surface of the plug block 37 through the movement of the positioning groove 27, so that the plug block 37 moves forward and compresses the No. 3 spring 39. When the positioning groove 27 and the plug block 37 are at the same level, the No. 3 spring 39 is released and drives the plug block 37 to be inserted into the positioning groove 27. At the same time, the outer wall of the positioning groove 27 is also in contact with the limiting plate 310, and the positioning groove 27 is supported by the limiting plate 310. That is, The adjusting frame 11 is supported to prevent the adjusting frame 11 from having nowhere to support after rotation, resulting in an unstable position after rotation, thereby causing operational errors during welding. If the rotating adjusting frame 11 needs to be released, the slide plate 38 can be pulled outward to move. The movement of the slide plate 38 will stretch the No. 3 spring 39. When the No. 3 spring 39 is stretched to a certain extent, it will pull the plug block 37 to move. At this time, the plug block 37 is disengaged from the positioning groove 27. Only then can the adjusting frame 11 be freely rotated. Through quick fixing and disassembly, the time during equipment installation and replacement of welding angles can be significantly reduced, thereby reducing downtime and improving production efficiency.

[0030] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gear laser welding fixture, comprising a base (1), characterized in that: A docking device, a clamping device and a turning device are arranged above the base (1); The docking device comprises a fixed frame (10), an adjusting frame (11), a fixed block (12), a rotating knob (13), a limiting rod (14), a limiting block (15), a rotating rod (16), an elastic telescopic rod (17), a placing frame (18), a rotating frame (19), a clamping block (110), a bearing (111), a blocking wheel (112) and a contact block (113), wherein the fixed frame (10) is fixedly mounted on the top of the base (1), the adjusting frame (11) is rotatably mounted on the inner wall of the fixed frame (10), the fixed block (12) is fixedly mounted on the top of the adjusting frame (11), the rotating knob (13) is rotatably mounted on the right side of the fixed block (12), a limiting groove is provided on the right side of the rotating knob (13), the limiting rod (14) is rotatably mounted on the right side of the rotating knob (13), and the limiting block (15) is slidably mounted on the rotating knob (13). The rotating rod (16) is mounted on the circumferential surface of the limit rod (14); one side of the rotating rod (16) is fixedly mounted on the left side of the rotating knob (13); the other side of the rotating rod (16) rotates through the inner and outer walls of the fixed block (12); the fixed end of the elastic telescopic rod (17) is fixedly mounted on the top of the base (1); the placement frame (18) is fixedly mounted on the output end of the elastic telescopic rod (17); the rotating frame (19) is rotatably mounted on the inner wall of the placement frame (18); the clamping block (110) is rotatably mounted on the surface of the placement frame (18); a circular groove is provided on the surface of the rotating frame (19); the bearing (111) is arranged between the placement frame (18) and the rotating frame (19); the blocking wheel (112) is rotatably mounted on the inner wall of the bearing (111); and the contact block (113) is fixedly mounted on the circumferential surface of the blocking wheel (112); The clamping device comprises a tripod (20), a sliding column (21) and a receiving plate (22), wherein the tripod (20) is fixedly mounted on the circumferential surface of the rotating rod (16), the sliding column (21) is slidably mounted on the circumferential surface of the rotating rod (16), a first spring is arranged between the sliding column (21) and the rotating rod (16), and the receiving plate (22) is fixedly mounted on the circumferential surface of the sliding column (21); The clamping device further comprises a receiving block (25), a round rod (26) and a positioning groove (27), wherein the receiving block (25) is fixedly mounted on the front side of the fixing frame (10), the round rod (26) is fixedly penetrated through the inner and outer walls of the fixing frame (10), and the positioning groove (27) is fixedly mounted on the outer wall of the adjusting frame (11); The turning device comprises a pressure plate (31), a connecting rod (32), a second spring (33) and a limiting column (34); the connecting rod (32) slides through the inner and outer walls of the receiving block (25); the pressure plate (31) is fixedly mounted on the top of the connecting rod (32); the second spring (33) is arranged between the receiving block (25) and the pressure plate (31); one side of the limiting column (34) is fixedly mounted on the surface of the connecting rod (32); and the other side of the limiting column (34) slides through the inner and outer walls of the round rod (26); The turning device further comprises a mounting frame (35) and a hollow block (36), wherein the mounting frame (35) is fixedly mounted on the top of the base (1), and the hollow block (36) is fixedly mounted on the top of the mounting frame (35); The flipping device further comprises an insert block (37), a slide plate (38), a No. 3 spring (39) and a limiting plate (310); the insert block (37) is slidably mounted on the inner wall of the hollow block (36); the slide plate (38) is slidably mounted on the inner wall of the hollow block (36); the No. 3 spring (39) is arranged between the insert block (37) and the slide plate (38); the limiting plate (310) is fixedly mounted on the rear side of the mounting frame (35); the top of the insert block (37) is arranged as an inclined surface; and a No. 4 spring is arranged between the slide plate (38) and the hollow block (36); A spiral groove is formed on the circumferential surface of the rotating rod (16), and the spiral groove is threadedly connected to the blocking wheel (112); The clamping device further comprises an L-shaped slider (23) and a rotating rod (24), one side of the L-shaped slider (23) being slidably mounted on the inner wall of the tripod (20), one side of the rotating rod (24) being rotationally mounted on the surface of the L-shaped slider (23), and the other side of the rotating rod (24) being rotationally mounted on the outer wall of the receiving plate (22).

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