Clamping tool for assembling umbrella framework

Abstract

The invention discloses a clamping tool for assembling an umbrella framework, and relates to the technical field of umbrella production, and the clamping tool comprises a bottom shell, a clamping table is arranged at the top of the bottom shell, a rotating rod is fixedly embedded in the clamping table, and the bottom end of the rotating rod penetrates through the top of the bottom shell and is connected with the inner wall of the bottom of the bottom shell; the first toothed plate and the second toothed plate are both fixedly connected to the top of the bottom shell, and the first toothed plate and the second toothed plate are both arranged to be in an arc shape; the device has the beneficial effects that a second piston moves downwards under the action of a first pipeline and a three-way pipe, air in a second box body can enter two first box bodies, then two first pistons, two moving rods and two clamping blocks are pushed to move towards the middle, and therefore the two clamping blocks can clamp and fix a middle rod; according to the device, the middle rod can be clamped and fixed in the process that the clamping assembly moves from the rear side to the right side, manual fixing is not needed, and the labor intensity of workers can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of umbrella production, and in particular to a clamping tool for assembling an umbrella frame. Background Art

[0002] During the production of umbrellas, the frame needs to be assembled. During the assembly, a clamping tool is needed. The clamping tool can clamp the umbrella pole in the frame, thereby facilitating the assembly of the umbrella ribs on the umbrella pole, thus completing the assembly of the frame. The existing clamping tooling is found to be unable to automatically fix the umbrella pole during use and needs to be manually fixed during clamping, which has a low degree of automation and high labor intensity, so it needs to be improved. For this reason, it is necessary to invent a clamping tool for assembling an umbrella frame. Summary of the Invention

[0003] To this end, the present invention provides a clamping tool for assembling an umbrella frame to solve the problems in the background technology.

[0004] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a clamping tool for assembling an umbrella frame, comprising: A bottom shell, wherein a clamping platform is provided on the top of the bottom shell, a rotating rod is fixedly embedded on the clamping platform, and the bottom end of the rotating rod passes through the top of the bottom shell and is connected to the bottom inner wall of the bottom shell; Tooth plate 1 and tooth plate 2, both of which are fixedly connected to the top of the bottom shell, and both of which are configured as arcs; There are four clamping assemblies, which are evenly distributed in a circular shape, and the four clamping assemblies are all arranged on the clamping table; The driving assembly is arranged in the bottom shell and is used for driving the clamping platform to rotate.

[0005] Preferably, the clamping assembly includes a cylinder, which is embedded in the clamping table, a sleeve is fixedly embedded in the top of the cylinder, a plurality of arc-shaped spring pieces that are evenly distributed in a circular shape are fixedly connected to the inner wall of the sleeve, a support rod is fixedly connected to the inside of the cylinder, and the support rod is located at the bottom of the sleeve, a rotating plate is fixedly sleeved on the cylinder, a plurality of slots that are evenly distributed in a circular shape are opened on the rotating plate, a protrusion is fixedly connected to the inner wall of the top of the clamping table, the protrusion is embedded in one of the slots, and the protrusion is in sliding contact with the rotating plate.

[0006] Preferably, a box body is fixedly embedded on both sides of the cylinder, the two box bodies are located between the sleeve and the support rod, a through groove is opened on the inner side of the two box bodies, two blocks are provided between the two box bodies, and the outer sides of the two blocks are fixedly connected to a moving rod, the two moving rods respectively pass through the two through grooves and slide in contact with them, and a piston is fixedly sleeved on the outside of the two moving rods, and the two pistons are respectively slidably set in the two box bodies.

[0007] Preferably, the inner wall of the bottom of the clamping table is fixedly connected to a box body 2, the box body 2 is located on the rear side of the cylinder, the top of the box body 2 is set to be open, a piston 2 is slidably provided inside the box body 2, a tee is fixedly embedded on the cylinder, the top ends of the tee are respectively fixedly connected to the two box bodies 1, a pipe 1 is fixedly embedded at the bottom of the box body 2 and the clamping table, one end of the pipe 1 is sleeved on the bottom end of the tee and connected to it through a sealed bearing.

[0008] Preferably, the clamping assembly also includes a threaded rod, which is embedded in the clamping table and located on the rear side of the cylinder. A threaded block is provided on the outside of the threaded rod, and the threaded block is connected to the threaded rod through threads. A pull rod is fixedly connected between the threaded block and piston 2. A gear is fixedly provided on the outside of the bottom end of the threaded rod. A limiting rod is fixedly connected to the clamping table, and the limiting rod passes through the threaded block and is in sliding contact with it.

[0009] Preferably, a U-shaped rod is fixedly connected to the inner wall of the top of the clamping table, a pin rod is slidably embedded in the bottom of the U-shaped rod, a spring is sleeved on the outside of the pin rod, the two ends of the spring are respectively fixedly connected to the U-shaped rod and the protrusion at the bottom end of the pin rod, a moving block is provided at the bottom end of the pin rod, and the moving block is fixedly connected to the top of the threaded block.

[0010] Preferably, a cavity one is provided on each of the two moving rods, an air outlet is provided on the top and bottom of each of the two cavities one, a piston three is slidably provided inside each of the two cavities one, a spring two is fixedly connected to the inner side of each of the two pistons three, and the inner ends of the two springs two are respectively fixedly connected to the inner sides of the two cavities one.

[0011] Preferably, the drive assembly includes a servo motor and a connecting block, and the servo motor and the connecting block are fixedly connected to the bottom inner wall of the bottom shell. The output shaft of the servo motor is fixedly connected to a worm, and the worm passes through the connecting block. The front side of the worm is provided with a worm wheel that is meshed with it. The worm wheel is fixedly sleeved on the outside of the rotating rod, and the worm and the connecting block are connected through a bearing.

[0012] Preferably, the rotating rod is connected to the bottom shell via a bearing, the cylinder is connected to the clamping platform via a bearing, and the threaded rod is connected to the clamping platform via a bearing.

[0013] The beneficial effects of the present invention are: The present invention is designed with a clamping assembly. When in use, the piston two moves downward under the action of the pipe one and the tee pipe, so that the air in the box two can enter the two box one, and then push the two pistons one, the two moving rods and the two clamping blocks to move toward the middle, so that the two clamping blocks can clamp and fix the center rod. In this way, the device can achieve clamping and fixing of the center rod in the process of the clamping assembly moving from the rear side to the right side, without the need for manual fixing, which can reduce the labor intensity of manual work.

[0014] The present invention can rotate the cylinder by rotating the rotating plate to adjust the position of the middle pole, and then assemble the umbrella ribs at different positions on the middle pole. A plurality of sockets are designed on the rotating plate, and a clamping table is provided with protrusions embedded in the sockets. When the rotating plate is rotated under the action of the toughness of the protrusions, the protrusions will be embedded in other sockets, which can increase the resistance to rotating the rotating plate, thereby preventing the cylinder from rotating when the rotating plate is touched, and ensuring that the assembly work is carried out smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are intended only to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall still fall within the scope of the technical contents disclosed herein.

[0017] Figure 1 A schematic diagram of the overall structure provided by the present invention; Figure 2 A front cross-sectional view provided by the present invention; Figure 3 The present invention provides Figure 2 A magnified view of point A in the figure; Figure 4 A side cross-sectional view provided for the present invention; Figure 5 The present invention provides Figure 4 Enlarged view of point B in FIG. Figure 6 The present invention provides Figure 4 Enlarged view of point C in the figure; Figure 7 A bottom perspective view without the bottom shell provided by the present invention; Figure 8 A rear perspective view of the present invention without the clamping table; Figure 9 A three-dimensional exploded view of a single clamping assembly provided by the present invention; In the figure: 1. bottom shell; 2. clamping table; 3. rotating rod; 4. tooth plate 1; 5. tooth plate 2; 6. cylinder; 7. sleeve; 8. arc-shaped spring piece; 9. support rod; 10. rotating plate; 11. bump; 12. box body 1; 13. clamping block; 14. moving rod; 15. piston 1; 16. box body 2; 17. piston 2; 18. tee pipe; 19. pipe 1; 20. threaded rod; 21. threaded block; 22. pull rod; 23. gear; 24. limit rod; 25. U-shaped rod; 26. pin rod; 27. spring 1; 28. moving block; 29. ​​cavity 1; 30. air outlet; 31. piston 3; 32. spring 2; 33. servo motor; 34. connecting block; 35. worm; 36. worm gear. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0019] Refer to the attached Figure 1 -Attached Figure 9 The present invention provides a clamping tool for assembling an umbrella frame, comprising: The bottom shell 1 has a clamping platform 2 on the top, a rotating rod 3 is fixedly embedded on the clamping platform 2, and the bottom end of the rotating rod 3 passes through the top of the bottom shell 1 and is connected to the bottom inner wall of the bottom shell 1; Tooth plate 1 4 and tooth plate 2 5 are fixedly connected to the top of the bottom shell 1, and tooth plate 1 4 and tooth plate 2 5 are both configured in an arc shape; There are four clamping assemblies, which are evenly distributed in a circular shape, and the four clamping assemblies are all arranged on the clamping platform 2; A driving assembly, which is disposed in the bottom shell 1 and is used to drive the clamping table 2 to rotate; The clamping assembly includes a cylinder 6, which is embedded in the clamping platform 2. A sleeve 7 is fixedly embedded on the top of the cylinder 6. The inner wall of the sleeve 7 is fixedly connected to a plurality of arc-shaped spring pieces 8 that are evenly distributed in a circumferential shape. A support rod 9 is fixedly connected to the inside of the cylinder 6. The support rod 9 is located at the bottom of the sleeve 7. A rotating plate 10 is fixedly sleeved on the cylinder 6. The rotating plate 10 is provided with a plurality of slots that are evenly distributed in a circumferential shape. A protrusion 11 is fixedly connected to the inner wall of the top of the clamping platform 2. The protrusion 11 is embedded in one of the slots. The protrusion 11 is in sliding contact with the rotating plate 10, and a box body 12 is fixedly embedded on both sides of the cylinder 6. The two box bodies 12 are located between the sleeve 7 and the support rod 9. A through groove 1 is provided on the inner side of the two box bodies 12. Two blocks 13 are provided between the two box bodies 12. The outer sides of the two blocks 13 are fixedly connected to the moving rod 14. The two moving rods 14 respectively pass through the two through grooves and slide in contact with them. The outer sides of the two moving rods 14 are fixedly sleeved with a piston 15. The two pistons 15 are respectively The sliding is set in the two boxes 12, and the inner wall of the bottom of the clamping platform 2 is fixedly connected with the box 2 16. The box 2 16 is located on the rear side of the cylinder 6. The top of the box 2 16 is set to be open. The piston 2 17 is slidingly provided inside the box 2 16. A three-way pipe 18 is fixedly embedded on the cylinder 6. The top ends of the three-way pipe 18 are respectively fixedly connected to the two boxes 12. A pipe 19 is fixedly embedded on the bottom of the box 2 16 and the clamping platform 2. One end of the pipe 19 is sleeved on the bottom end of the three-way pipe 18. The head is connected to it through a sealed bearing. The clamping assembly also includes a threaded rod 20, which is embedded in the clamping platform 2 and located on the rear side of the cylinder 6. A threaded block 21 is provided on the outside of the threaded rod 20. The threaded block 21 is connected to the threaded rod 20 through a threaded connection. A pull rod 22 is fixedly connected between the threaded block 21 and the piston 2 17. A gear 23 is fixedly provided on the outside of the bottom end of the threaded rod 20. A limit rod 24 is fixedly connected to the clamping platform 2. The limit rod 24 passes through the threaded block 21 and is in sliding contact with it. In this embodiment, a clamping assembly is designed. When in use, the downward movement of the second piston 17 under the action of the first pipe 19 and the tee pipe 18 allows the air in the second box 16 to enter the two first boxes 12, thereby pushing the two first pistons 15, the two moving rods 14 and the two clamping blocks 13 to move toward the middle. In this way, the two clamping blocks 13 can clamp and fix the center rod. In this way, the device can achieve the clamping and fixing of the center rod during the movement of the clamping assembly from the rear to the right side, without the need for manual fixing. The top of the pin 26 can be inserted into the socket directly above it, so that the rotating plate 10 can be restricted. In this way, when the assembled skeleton is pulled out and a new middle rod is inserted, it can be avoided that the cylinder 6 can be rotated at will due to excessive force. Among them, in order to avoid the occurrence of movement obstruction and to clamp and fix the middle rods of different diameters, this device adopts the following technical solutions: a cavity 29 is provided on each of the two moving rods 14, and an air outlet 30 is provided on the top and bottom of the two cavities 29. A piston 31 is slidably provided inside the two cavities 29, and a spring 2 32 is fixedly connected to the inner side of the two pistons 31. The inner ends of the two springs 2 32 are respectively fixedly connected to the inner sides of the two cavities 29. When the clamping assembly moves from the rear side to the right side, it will perform clamping and fixing work. When the middle rod is fixed, the two blocks 13 will contact the middle rod. When the diameter of the middle rod becomes larger, the distance the two blocks 13 move toward the middle becomes smaller. However, at this time, the The gear 23 on the clamping assembly is still in a state of meshing with the tooth plate 14 and has not completely disengaged from the tooth plate 14. The threaded rod 20 still needs to rotate, and the threaded block 21 still needs to continue to move downward. A cavity 129 is designed on the moving rod 14, and a piston 31 and a spring 23 are designed in the cavity 129. In this way, when the threaded block 21 continues to move downward, the air in the box body 2 16 continues to enter the box body 12, and then the two pistons 31 can be squeezed to move toward the middle, and the spring 3 can be squeezed to cause elastic deformation. In this way, the threaded rod 20 can continue to rotate smoothly and the threaded block 21 can continue to move downward smoothly to avoid the occurrence of movement obstruction. At the same time, the clamping assembly can also clamp and fix middle rods of different diameters. Among them, in order to achieve the purpose of driving, this device adopts the following technical solutions: the driving component includes a servo motor 33 and a connecting block 34, the servo motor 33 and the connecting block 34 are fixedly connected to the bottom inner wall of the bottom shell 1, the output shaft of the servo motor 33 is fixedly connected to a worm 35, the worm 35 passes through the connecting block 34, the front side of the worm 35 is provided with a worm wheel 36 meshing with the worm 35, the worm wheel 36 is fixedly sleeved on the outside of the rotating rod 3, and the worm 35 is connected to the connecting block 34 through a bearing; Among them, in order to achieve the purpose of reducing wear, this device adopts the following technical solution: the rotating rod 3 is connected to the bottom shell 1 through a bearing, the cylinder 6 is connected to the clamping platform 2 through a bearing, and the threaded rod 20 is connected to the clamping platform 2 through a bearing. The bearing connection can reduce wear.

[0020] The use process of the present invention is as follows: Figure 1 As shown, when assembling the umbrella frame, the middle pole of the umbrella is inserted into the cylinder 6 of the rear clamping assembly. After the insertion, the bottom end of the middle pole contacts the support rod 9, and the multiple arc-shaped spring pieces 8 will have a preliminary clamping effect with the middle pole. Then, the servo motor 33 is controlled to rotate the worm 35. The rotation of the worm 35 drives the worm gear 36 to rotate. The rotation of the worm gear 36 drives the rotating rod 3 to rotate. The rotation of the rotating rod 3 can rotate the clamping platform 2. The servo motor 33 is controlled to rotate the clamping platform 2 clockwise (from a top view) by 90 degrees. In this way, the clamping assembly on the rear side can be moved to the right. When moving to the right, the gear 23 on the clamping assembly will mesh with the tooth plate 4. In this way, the threaded rod 20 can be rotated, and the rotation of the threaded rod 20 drives the threaded block 21 to move downward. The downward movement of the threaded block 21 can make the pull rod 22 and the piston 2 17 move downward. Then, under the action of the pipe 19 and the tee pipe 18, the piston 2 17 moves downward, which can make the air in the box 2 16 enter the two box 1s 12, thereby pushing the two pistons 15, the two moving rods 14 and the two clamping blocks 13 to move toward the middle, so that the two clamping blocks 13 can clamp and fix the center rod. In this way, the present device can realize the clamping and fixing of the center rod in the process of the clamping assembly moving from the rear side to the right side, without the need for manual fixation, which can reduce the labor intensity of manual work; Then the same steps are followed to insert the middle pole into the clamping assembly on the rear side, and then the servo motor 33 is controlled again to rotate the clamping platform 2 ninety degrees. Based on the same principle, when the clamping assembly moves from the rear side to the right side, the inserted middle pole can be automatically fixed, and the first clamping assembly inserted into the middle pole will move to the front side. At this time, the ribs can be assembled on the middle pole on the front side of the device, thus realizing the assembly of the umbrella frame. During assembly, the rotating plate 10 can be manually rotated. The rotation of the rotating plate 10 can rotate the cylinder 6, thereby rotating the middle pole, which makes it convenient to adjust the position of the middle pole, and then assemble the ribs at different positions on the middle pole. In addition, the rotating plate 10 can be manually rotated. Multiple sockets are designed, and the clamping table 2 has a protrusion 11 embedded in the socket. When the rotating plate 10 is rotated under the action of the toughness of the protrusion 11, the protrusion 11 will be embedded in other sockets, which can increase the resistance to rotating the rotating plate 10, thereby avoiding the cylinder 6 from rotating when the rotating plate 10 is touched, which can ensure the smooth progress of the assembly work. After completion, the servo motor 33 is controlled to rotate the clamping table 2 again by 90 degrees, and at the same time, the middle rod is inserted into the clamping assembly on the rear side. The middle rod is fixed in the same principle, and the second middle rod is moved to the front side of the device. Then the manual assembly work is performed again. In this way, the assembly work can be continuously carried out in a cycle, which can increase the efficiency of assembly. When the first assembled middle pole moves from the left to the rear side, the gear 23 on the clamping assembly will engage with the tooth plate 2 5. Since the teeth on the tooth plate 1 4 face outward and the teeth on the tooth plate 2 5 face inward, the threaded rod 20 will reverse when engaging with the tooth plate 2 5, and then the threaded block 21, the pull rod 22, the piston 2 17 and other components will move upward and reset, and then the air in the two boxes can be sucked away, and then the two pistons 15, the two moving rods 14 and the two clamping blocks 13 will move outward and reset, thus automatically releasing the fixation of the middle pole, making it convenient to manually pull out the assembled umbrella frame from the clamping assembly, and also making it convenient to place a new middle pole on the clamping assembly.

[0021] The above are merely preferred embodiments of the present invention. Anyone skilled in the art may modify the present invention using the above-described technical solutions or modify them into equivalent technical solutions. Therefore, any simple modification or equivalent replacement based on the technical solutions of the present invention falls within the scope of protection claimed by the present invention.

Claims

1. A clamping tool for assembling an umbrella frame, characterized in that: include: A bottom shell (1), wherein a clamping platform (2) is provided on the top of the bottom shell (1), a rotating rod (3) is fixedly embedded on the clamping platform (2), and the bottom end of the rotating rod (3) passes through the top of the bottom shell (1) and is connected to the bottom inner wall of the bottom shell (1); Tooth plate one (4) and tooth plate two (5), said tooth plate one (4) and tooth plate two (5) are both fixedly connected to the top of the bottom shell (1), and said tooth plate one (4) and tooth plate two (5) are both arranged in an arc shape; Clamping assemblies, which are arranged in four and evenly distributed in a circular shape, and the four clamping assemblies are all arranged on the clamping platform (2); A driving assembly is arranged in the bottom shell (1) and is used to drive the clamping platform (2) to rotate.

2. The clamping tool for assembling an umbrella frame according to claim 1, characterized in that: The clamping assembly includes a cylinder (6), which is embedded in the clamping platform (2), a sleeve (7) is fixedly embedded in the top of the cylinder (6), and a plurality of arc-shaped spring pieces (8) are fixedly connected to the inner wall of the sleeve (7) and are evenly distributed in a circumferential shape. A support rod (9) is fixedly connected inside the cylinder (6), and the support rod (9) is located at the bottom of the sleeve (7). A rotating plate (10) is fixedly sleeved on the cylinder (6), and a plurality of slots evenly distributed in a circumferential shape are opened on the rotating plate (10). A protrusion (11) is fixedly connected to the inner wall of the top of the clamping platform (2), and the protrusion (11) is embedded in one of the slots. The protrusion (11) is in sliding contact with the rotating plate (10).

3. The clamping tool for assembling an umbrella frame according to claim 2, characterized in that: A box body (12) is fixedly embedded on both sides of the cylinder (6), and the two box bodies (12) are located between the sleeve (7) and the support rod (9). A through groove (1) is provided on the inner side of the two box bodies (12). Two clamping blocks (13) are provided between the two box bodies (12). The outer sides of the two clamping blocks (13) are fixedly connected with a moving rod (14). The two moving rods (14) respectively pass through the two through grooves and are in sliding contact with them. The outer sides of the two moving rods (14) are fixedly sleeved with a piston (15), and the two pistons (15) are respectively slidably set in the two box bodies (12).

4. The clamping tool for assembling an umbrella frame according to claim 3, characterized in that: The inner wall of the bottom of the clamping platform (2) is fixedly connected with a box body 2 (16), the box body 2 (16) is located at the rear side of the cylinder (6), the top of the box body 2 (16) is set to be open, and a piston 2 (17) is slidably provided inside the box body 2 (16), a three-way pipe (18) is fixedly embedded on the cylinder (6), and the top ends of the three-way pipe (18) are respectively fixedly connected to the two box bodies 1 (12), and a pipe 1 (19) is fixedly embedded on the bottom of the box body 2 (16) and the clamping platform (2), and one end of the pipe 1 (19) is sleeved on the bottom end of the three-way pipe (18) and connected to it through a sealed bearing.

5. The clamping tool for assembling an umbrella frame according to claim 4, characterized in that: The clamping assembly further comprises a threaded rod (20), the threaded rod (20) being embedded in the clamping platform (2) and being located at the rear side of the cylinder (6), the threaded rod (20) being externally sleeved with a threaded block (21), the threaded block (21) being connected to the threaded rod (20) by threads, a pull rod (22) being fixedly connected between the threaded block (21) and the second piston (17), the threaded rod (20) being externally sleeved with a gear (23), a limiting rod (24) being fixedly connected to the clamping platform (2), the limiting rod (24) passing through the threaded block (21) and being in sliding contact with the threaded block (21).

6. The clamping tool for assembling an umbrella frame according to claim 5, characterized in that: A U-shaped rod (25) is fixedly connected to the inner wall of the top of the clamping table (2), a pin rod (26) is slidably embedded in the bottom of the U-shaped rod (25), a spring (27) is sleeved on the outside of the pin rod (26), and the two ends of the spring (27) are fixedly connected to the U-shaped rod (25) and the bottom end protrusion of the pin rod (26), respectively. A moving block (28) is provided at the bottom end of the pin rod (26), and the moving block (28) is fixedly connected to the top of the threaded block (21).

7. The clamping tool for assembling an umbrella frame according to claim 3, characterized in that: A cavity one (29) is provided on each of the two moving rods (14), and an air outlet (30) is provided on the top and bottom of each of the two cavities one (29). A piston three (31) is slidably provided inside each of the two cavities one (29), and a spring two (32) is fixedly connected to the inner side of each of the two pistons three (31). The inner ends of the two springs two (32) are fixedly connected to the inner sides of the two cavities one (29), respectively.

8. The clamping tool for assembling an umbrella frame according to claim 1, characterized in that: The driving assembly comprises a servo motor (33) and a connecting block (34), wherein the servo motor (33) and the connecting block (34) are both fixedly connected to the inner wall of the bottom of the bottom shell (1), and the output shaft of the servo motor (33) is fixedly connected to a worm (35), wherein the worm (35) passes through the connecting block (34), and a worm wheel (36) meshingly connected to the worm (35) is provided on the front side of the worm (35), and the worm wheel (36) is fixedly sleeved on the outside of the rotating rod (3), and the worm (35) and the connecting block (34) are connected via a bearing.

9. The clamping tool for assembling an umbrella frame according to claim 5, characterized in that: The rotating rod (3) is connected to the bottom shell (1) via a bearing, the cylinder (6) is connected to the clamping platform (2) via a bearing, and the threaded rod (20) is connected to the clamping platform (2) via a bearing.

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