A support device for welding and assembling fitness equipment

Abstract

The present invention relates to the technical field of welding and assembly of fitness equipment, and discloses a supporting device for welding and assembly of fitness equipment, comprising a movable frame, an adjusting mechanism movably installed inside the movable frame, two clamping mechanisms movably installed inside the adjusting mechanism, and a pressing component fixedly installed above the movable frame. The limiting threaded rod is sequentially placed in the limiting groove inside the third clamping arm, the second clamping arm or the first clamping arm by adjusting the limiting threaded rod. At this time, the positioning rod is respectively parallel to the gear display groove in the bottom, middle or top position in the positioning groove, and the limiting threaded rod does not limit the second clamping arm and the third clamping arm, or limits the second clamping arm in the first clamping arm, or limits the third clamping arm and the second clamping arm in the second clamping arm and the first clamping arm in turn, thereby the third clamping arm, the second clamping arm or the first clamping arm clamps the bent pipe part, thereby achieving the effect of improving the flexibility and efficiency of the production line.

Description

Technical Field

[0001] The invention relates to the technical field of welding and assembling of fitness equipment, and in particular to a supporting device for welding and assembling of fitness equipment. Background Art

[0002] The support device used for welding and assembly of fitness equipment is usually called a welding bracket or assembly fixture. The main function of this support device is to fix the various components of the fitness equipment during welding or assembly, ensuring that they remain stable and accurately positioned during welding to avoid deformation or dislocation. Some fitness equipment, such as the handlebars of elliptical machines and the support rods of spinning bikes, usually use bent pipes to provide ergonomic designs. The welding of bent pipes is more complex because the angle and curvature of the pipe bending need to be considered. During welding, it is necessary to ensure that the bent pipes are accurately docked with other components.

[0003] A support device for welding and assembling fitness equipment is disclosed in the patent publication number CN114559203A, which relates to the technical field of welding and assembling fitness equipment, wherein a rolling component can drive a round tube workpiece fixed by a supporting and fixing component to rotate and roll, so that workers do not need to move when welding the workpiece, which is convenient and flexible, and a swinging component can drive the welding rod to swing automatically, so that workers do not need to manually control the swing of the welding gun, further simplifying the workflow during welding and assembling of round tube workpieces of fitness equipment, greatly reducing the labor intensity of workers, and solving the problem that workers need to constantly move around the round tube to weld during welding in the existing welding device, which is troublesome, and the welding gun needs to be manually swung with great labor intensity.

[0004] The prior art has the following defects:

[0005] Unable to adjust the clamp according to the shape of the bent pipe: The bent pipes in fitness equipment are usually used to form the frame structure or support part of the equipment. The bent pipes provide a more ergonomic design for the equipment through their unique bending shape, while also enhancing the aesthetics and functionality of the equipment. Since the bending angles and shapes of the bent pipes vary, if the fixing clamp cannot be adjusted according to its bending contour, it may cause the parts to be unable to be accurately aligned, thereby affecting the quality of the final product after welding. Therefore, it is necessary to set up an arbitrarily adjustable clamp to suit bent pipes with different bending angles and shapes, so as to improve the quality of the welded joints and the structural stability.

[0006] Insufficient adjustment range of the clamp according to the diameter of the bent pipe: The diameter of the bent pipes in fitness equipment varies depending on the type and purpose of the equipment, usually ranging from 15 mm to 80 mm, with a large span. Pipes with larger diameters provide better stability and load-bearing capacity, while pipes with smaller diameters are used for lightweight and flexible parts. Clamps with insufficient adjustment range cannot cover these size ranges. Pipes that are too large may not be fixed, and pipes that are too small may become loose, resulting in unstable support and affecting welding accuracy. Therefore, it is necessary to set up a structure that can adjust the diameter of the clamp over a wide range to adapt to bent pipes of different diameters, so as to improve the flexibility and efficiency of the production line. Summary of the invention

[0007] In view of the problems in the prior art that the clamp cannot be adjusted according to the shape of the bent pipe and the adjustment range of the clamp is insufficient according to the diameter of the bent pipe, a support device for welding and assembling fitness equipment is proposed.

[0008] The present application provides a support device for the welding and assembly of fitness equipment, the purpose of which is: by setting an adjustment mechanism, the clamp can be flipped, moved horizontally and vertically to be suitable for clamping bent pipes with different bending angles and shapes, thereby achieving the effect of improving the quality of the welded joint and the structural stability. At the same time, by setting a clamping mechanism, the diameter of the clamp can be adjusted over a wide range to be suitable for bent pipes of different diameters, thereby achieving the effect of improving the flexibility and efficiency of the production line.

[0009] The technical solution of the present invention is: a support device for welding and assembling fitness equipment, comprising a movable frame, an adjustment mechanism movably installed inside the movable frame, two clamping mechanisms movably installed inside the adjustment mechanism, a pressing assembly fixedly installed above the movable frame, a bent pipe member arranged between the two clamping mechanisms and the pressing assembly, a support platform arranged at the bottom of the movable frame, and an equipment main frame arranged above the support platform, the outer wall of the equipment main frame overlaps the outer wall of the bent pipe member, the clamping mechanism comprises a first clamping arm movably installed inside the adjustment mechanism, the inner wall of the first clamping arm is slidably connected to the second clamping arm, the inner wall of the second clamping arm is slidably connected to the third clamping arm, and the first clamping arm, the second clamping arm and the third clamping arm are internally movably installed with a limiting assembly;

[0010] The limit assembly includes a limit groove and a positioning groove opened inside the first clamping arm, the second clamping arm and the third clamping arm, the inner wall of the limit groove is threadedly connected to a limit threaded rod, the bottom of the limit threaded rod is fixedly connected to a positioning rod, the outer wall of the positioning rod is slidably connected to the inner wall of the positioning groove, and the outer wall of the first clamping arm is provided with a plurality of gear display grooves.

[0011] By adopting the above scheme, the main frame of the equipment is placed on the support table, and then the movable frame is moved to the welding position. The clamping mechanism is adjusted according to the diameter of the bent pipe, and the limiting threaded rod is adjusted to be placed in the limiting groove inside the third clamping arm, the second clamping arm or the first clamping arm in sequence. At this time, the positioning rod is parallel to the gear display groove in the bottom, middle position or top position in the positioning groove, respectively, and the limiting threaded rod does not limit the second clamping arm and the third clamping arm, or limits the second clamping arm in the first clamping arm, or limits the third clamping arm and the second clamping arm in the second clamping arm and the first clamping arm in sequence. In this way, the bent pipe is clamped by the third clamping arm, the second clamping arm or the first clamping arm, thereby achieving the effect of improving the flexibility and efficiency of the production line.

[0012] Furthermore, the clamping mechanism also includes a second telescopic spring fixedly connected between the first clamping arm and the second clamping arm, and a first telescopic spring fixedly connected between the second clamping arm and the third clamping arm.

[0013] By adopting the above solution, by providing a first telescopic spring, the third clamping arm can be telescoped in the second clamping arm, and by providing a second telescopic spring, the second clamping arm can be telescoped in the first clamping arm.

[0014] Furthermore, the first clamping arm, the second clamping arm and the third clamping arm can respectively clamp bent pipes of different diameters. When the third clamping arm is used for clamping, the limiting threaded rod is threadedly rotated into the limiting groove inside the third clamping arm. At this time, the positioning rod is at the bottom of the positioning groove and is parallel to the bottom gear display groove.

[0015] Furthermore, when the second clamping arm is used for clamping, the limiting threaded rod is threadedly rotated into the limiting groove inside the second clamping arm. At this time, the positioning rod is in the middle position of the positioning groove and is parallel to the gear display groove in the middle position.

[0016] Furthermore, when the first clamping arm is used for clamping, the limiting threaded rod is threadedly rotated into the limiting groove inside the first clamping arm. At this time, the positioning rod is at the top of the positioning groove and is parallel to the top gear display groove.

[0017] By adopting the above scheme, through the setting of the clamping mechanism, when the diameter of the bent pipe is greater than or equal to 15 mm and less than 40 mm, the third clamping arm can be selected for clamping; when the diameter of the bent pipe is greater than or equal to 40 mm and less than 60 mm, the second clamping arm can be selected for clamping; when the diameter of the bent pipe is greater than or equal to 60 mm and less than or equal to 80 mm, the first clamping arm can be selected for clamping.

[0018] Furthermore, the adjustment mechanism comprises a vertical moving rod threadedly connected to the inner wall of the first clamping arm, the outer wall of the vertical moving rod is rotatably connected to a vertical moving frame, and the inner wall of the vertical moving frame is threadedly connected to a horizontal moving component.

[0019] Furthermore, the horizontal moving assembly includes a horizontal moving rod threadedly connected to the inner wall of the vertical moving frame, the outer wall of the horizontal moving rod is provided with a left-handed thread and a right-handed thread, the outer walls of the left-handed thread and the right-handed thread are respectively threadedly connected to the inner walls of the two vertical moving frames, and one end of the horizontal moving rod is fixedly connected to a handwheel.

[0020] Furthermore, the adjustment mechanism also includes a flip frame rotatably connected to the outer wall of the horizontal moving rod, both ends of the flip frame are fixedly connected with rotating wheels, the outer walls of the two rotating wheels are rotatably connected to the inner wall of the movable frame, and the outer wall of the rotating wheel on the same side of the handwheel is fixedly connected with an adjustment wheel.

[0021] By adopting the above scheme, the horizontal moving rod is driven to rotate by twisting the hand wheel, and the left-handed thread and the right-handed thread on the horizontal moving rod drive the two vertical moving frames to move towards each other, so that the clamping mechanism clamps the bent pipe fitting, and then the vertical moving rod drives the clamping mechanism to move for height adjustment, and the adjusting wheel drives the flip frame to flip for angle adjustment, so that the welding point of the bent pipe fitting overlaps the welding point of the main frame of the equipment, providing stable support for welding.

[0022] Furthermore, the pressing assembly includes a fixed frame fixedly connected to the top of the movable frame, the inner wall of the fixed frame is rotatably connected to a first swing arm, the inner wall of the first swing arm is rotatably connected to a second swing arm, the outer wall of the second swing arm is rotatably connected to a V-shaped pressing pipe fitting, and the bottom of the V-shaped pressing pipe fitting overlaps the top of the bent pipe fitting.

[0023] Furthermore, a swing shaft and a fixed threaded rod are rotatably connected between the fixed frame and the first swing arm, the first swing arm and the second swing arm, and the second swing arm and the V-shaped pressure pipe fitting. The inner walls of the multiple swing shafts are provided with fixed grooves, and the inner walls of the multiple fixed grooves are respectively threadedly connected to the outer walls of the multiple fixed threaded rods.

[0024] By adopting the above scheme, the angles and distances of the first swing arm, the second swing arm and the V-shaped pipe pressing fitting are adjusted, the V-shaped pipe pressing fitting is pressed on top of the bent pipe fitting, and multiple fixed threaded rods are rotated and pushed into the fixed grooves of the corresponding swing shafts, so that the first swing arm, the second swing arm and the V-shaped pipe pressing fitting are fixed, thereby improving the stability during welding.

[0025] Beneficial effects of the present invention:

[0026] 1. By adjusting the limiting threaded rod, the limiting threaded rod is placed in the limiting groove inside the third clamping arm, the second clamping arm or the first clamping arm in turn. At this time, the positioning rod is parallel to the gear display groove in the bottom, middle or top position in the positioning groove respectively, and the limiting threaded rod does not limit the second clamping arm and the third clamping arm, or limits the second clamping arm in the first clamping arm, or limits the third clamping arm and the second clamping arm in the second clamping arm and the first clamping arm in turn, thereby the third clamping arm, the second clamping arm or the first clamping arm clamps the bent pipe fitting, thereby achieving the effect of improving the flexibility and efficiency of the production line.

[0027] 2. By twisting the handwheel, the horizontal moving rod is driven to rotate, and the left-handed and right-handed threads on the horizontal moving rod drive the two vertical moving frames to move toward each other, so that the clamping mechanism clamps the bent pipe fitting, and then the vertical moving rod drives the clamping mechanism to move for height adjustment, and the adjusting wheel drives the flip frame to flip for angle adjustment, so that the welding part of the bent pipe fitting overlaps the welding part of the main frame of the equipment, providing stable support for welding.

[0028] 3. By adjusting the angles and distances of the first swing arm, the second swing arm and the V-shaped pipe pressing fitting, the V-shaped pipe pressing fitting is pressed on top of the bent pipe fitting, and multiple fixed threaded rods are rotated and pushed into the fixed grooves of the corresponding swing shafts to fix the first swing arm, the second swing arm and the V-shaped pipe pressing fitting, thereby improving stability during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0030] Figure 2 It is a structural schematic diagram of the bending pipe of the present invention;

[0031] Figure 3 It is a partial structural schematic diagram of the regulating mechanism of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure explosion of the regulating mechanism of the present invention;

[0033] Figure 5 It is a schematic diagram of the explosion of the structure of the horizontal moving component of the present invention;

[0034] Figure 6 It is a schematic diagram of the structure explosion of the clamping mechanism of the present invention;

[0035] Figure 7 It is a schematic cross-sectional view of the structure of the limiting component of the present invention;

[0036] Figure 8 It is a schematic diagram of different states of the limit assembly of the present invention;

[0037] Fig. 9It is a structural schematic diagram of the pressing component of the present invention;

[0038] Fig.10 Schematic diagram of different states of the fixed threaded rod of the present invention.

[0039] In the figure:

[0040] 1. Movable frame; 2. Adjusting mechanism; 21. Rotating wheel; 22. Adjusting wheel; 23. Flipping frame; 24. Horizontal moving assembly; 241. Hand wheel; 242. Horizontal moving rod; 243. Left-handed thread; 244. Right-handed thread; 25. Vertical moving frame; 26. Vertical moving rod; 3. Clamping mechanism; 31. First clamping arm; 32. Second clamping arm; 33. Third clamping arm; 34. Limiting assembly; 341. Limiting threaded rod; 342. Positioning rod; 343. Limiting groove; 344. Positioning groove; 345. Gear position display groove; 35. First telescopic spring; 36. Second telescopic spring; 4. Pressing assembly; 41. Fixed frame; 42. First swing arm; 43. Second swing arm; 44. V-shaped pressing pipe fitting; 45. Swinging shaft; 46. Fixed threaded rod; 47. Fixed groove; 5. Bending pipe fitting; 6. Support table; 7. Main frame of equipment. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0042] Example 1, reference Figure 1 - Figure 8 , which is the first embodiment of the present invention, provides a support device for welding and assembling fitness equipment, including a movable frame 1, an adjusting mechanism 2 movably installed inside the movable frame 1, two clamping mechanisms 3 movably installed inside the adjusting mechanism 2, a pressing assembly 4 fixedly installed above the movable frame 1, a bending pipe member 5 arranged between the two clamping mechanisms 3 and the pressing assembly 4, a supporting platform 6 arranged at the bottom of the movable frame 1, and an equipment main frame 7 arranged above the supporting platform 6, the outer wall of the equipment main frame 7 overlaps the outer wall of the bending pipe member 5, the clamping mechanism 3 includes a first clamping arm 31 movably installed inside the adjusting mechanism 2, the inner wall of the first clamping arm 31 is slidably connected to the second clamping arm 32, the inner wall of the second clamping arm 32 is slidably connected to the third clamping arm 33, and the first clamping arm 31, the second clamping arm 32 and the third clamping arm 33 are internally movably installed with a limiting assembly 34.

[0043] Reference Figure 6 - Figure 7The limit assembly 34 includes a limit groove 343 and a positioning groove 344 opened inside the first clamping arm 31, the second clamping arm 32 and the third clamping arm 33. The inner wall of the limit groove 343 is threadedly connected to the limit threaded rod 341, and the bottom of the limit threaded rod 341 is fixedly connected to the positioning rod 342. The outer wall of the positioning rod 342 is slidably connected to the inner wall of the positioning groove 344. The outer wall of the first clamping arm 31 is provided with a plurality of gear display grooves 345.

[0044] Specifically, the movable frame 1 is movable and fixable, and is provided with a flippable adjusting mechanism 2 and a freely movable pressing component 4. Two clamping mechanisms 3 are respectively provided at the two ends of the adjusting mechanism 2, and can move oppositely to clamp the bent pipe 5. The support platform 6 can be moved by a forklift, and the main frame 7 of the equipment can be manually or mechanically transported to the support platform 6. The adjusting mechanism 2, the clamping mechanism 3 and the pressing component 4 are used to fix the bent pipe 5 at the corresponding welding position of the main frame 7 of the equipment; the first clamping arm 31, the second clamping arm 32 and the third clamping arm 33 are sequentially sleeved, and the second clamping arm 32 and the third clamping arm 33 are limited by the position of the limiting threaded rod 341 in the limiting groove 343, and the limiting position is displayed by the positioning rod 342 in the positioning groove 344 at a position parallel to the multiple gear display grooves 345.

[0045] By placing the main frame 7 of the equipment on the support table 6, and then moving the movable frame 1 to the welding position, the clamping mechanism 3 is adjusted according to the diameter of the bent pipe 5, and the limiting threaded rod 341 is adjusted to be placed in the limiting groove 343 inside the third clamping arm 33, the second clamping arm 32 or the first clamping arm 31 in turn. At this time, the positioning rod 342 is parallel to the gear display groove 345 in the bottom, middle position or top in the positioning groove 344 respectively, and the limiting threaded rod 341 does not limit the second clamping arm 32 and the third clamping arm 33, or limits the second clamping arm 32 in the first clamping arm 31, or limits the third clamping arm 33 and the second clamping arm 32 in the second clamping arm 32 and the first clamping arm 31 in turn, thereby the third clamping arm 33, the second clamping arm 32 or the first clamping arm 31 clamps the bent pipe 5, thereby achieving the effect of improving the flexibility and efficiency of the production line.

[0046] Reference Figure 5 - Figure 7 The clamping mechanism 3 also includes a second telescopic spring 36 fixedly connected between the first clamping arm 31 and the second clamping arm 32 , and a first telescopic spring 35 fixedly connected between the second clamping arm 32 and the third clamping arm 33 .

[0047] By providing the first telescopic spring 35 , the third clamping arm 33 can be telescoped in the second clamping arm 32 . By providing the second telescopic spring 36 , the second clamping arm 32 can be telescoped in the first clamping arm 31 .

[0048] Reference Figure 8 The first clamping arm 31, the second clamping arm 32 and the third clamping arm 33 can respectively clamp the bent pipe parts 5 of different diameters. When the third clamping arm 33 is used for clamping, the limiting threaded rod 341 is threadedly rotated to the limiting groove 343 inside the third clamping arm 33. At this time, the positioning rod 342 is at the bottom of the positioning groove 344 and is parallel to the bottom gear display groove 345. When the second clamping arm 32 is used for clamping, the limiting threaded rod 341 is threadedly rotated to the limiting groove 343 inside the second clamping arm 32. At this time, the positioning rod 342 is in the middle position of the positioning groove 344 and is parallel to the gear display groove 345 at the middle position. When the first clamping arm 31 is used for clamping, the limiting threaded rod 341 is threadedly rotated to the limiting groove 343 inside the first clamping arm 31. At this time, the positioning rod 342 is at the top of the positioning groove 344 and is parallel to the top gear display groove 345.

[0049] By setting up the clamping mechanism 3, when the diameter of the bent pipe member 5 is greater than or equal to 15 mm and less than 40 mm, the third clamping arm 33 can be selected for clamping; when the diameter of the bent pipe member 5 is greater than or equal to 40 mm and less than 60 mm, the second clamping arm 32 can be selected for clamping; when the diameter of the bent pipe member 5 is greater than or equal to 60 mm and less than or equal to 80 mm, the first clamping arm 31 can be selected for clamping.

[0050] Reference Figure 7-8 The adjusting mechanism 2 includes a vertical moving rod 26 threadedly connected to the inner wall of the first clamping arm 31, the outer wall of the vertical moving rod 26 is rotatably connected to the vertical moving frame 25, the inner wall of the vertical moving frame 25 is threadedly connected to the horizontal moving assembly 24, the horizontal moving assembly 24 includes a horizontal moving rod 242 threadedly connected to the inner wall of the vertical moving frame 25, the outer wall of the horizontal moving rod 242 is provided with a left-handed thread 243 and a right-handed thread 244, the outer walls of the left-handed thread 243 and the right-handed thread 244 are respectively threadedly connected to the inner walls of the two vertical moving frames 25, one end of the horizontal moving rod 242 is fixedly connected to a hand wheel 241, the adjusting mechanism 2 also includes a flip frame 23 rotatably connected to the outer wall of the horizontal moving rod 242, both ends of the flip frame 23 are fixedly connected to rotating wheels 21, the outer walls of the two rotating wheels 21 are rotatably connected to the inner wall of the movable frame 1, and the outer wall of the rotating wheel 21 on the same side of the hand wheel 241 is fixedly connected to the adjusting wheel 22.

[0051] Specifically, the turning frame 23 can be turned over by the adjusting wheel 22, the two vertical moving frames 25 can be driven to move toward each other in the turning frame 23 by the hand wheel 241, and the first clamping arm 31 can be driven to move up and down in the vertical moving frame 25 by the vertical moving rod 26.

[0052] By twisting the hand wheel 241, the horizontal moving rod 242 is driven to rotate, and the left-handed thread 243 and the right-handed thread 244 on the horizontal moving rod 242 drive the two vertical moving frames 25 to move in opposite directions, so that the clamping mechanism 3 clamps the bent pipe 5, and then the vertical moving rod 26 drives the clamping mechanism 3 to move for height adjustment, and the adjusting wheel 22 drives the flip frame 23 to flip for angle adjustment, so that the welding point of the bent pipe 5 overlaps with the welding point of the equipment main frame 7, providing stable support for welding.

[0053] During use, the main frame 7 of the equipment is placed on the support table 6, and then the movable frame 1 is moved to the welding position, and the clamping mechanism 3 is adjusted according to the diameter of the bent pipe 5; when the diameter of the bent pipe 5 is greater than or equal to 15 mm and less than 40 mm, the third clamping arm 33 is selected for clamping, and the limiting threaded rod 341 is adjusted to the limiting groove 343 inside the third clamping arm 33. At this time, the positioning rod 342 is parallel to the lowermost gear display groove 345 in the positioning groove 344, and the limiting threaded rod 341 limits the third clamping arm 33 and the second clamping arm 32 in sequence. The third clamping arm 33 is located between the second clamping arm 32 and the first clamping arm 31, so that the bent pipe 5 is clamped by the third clamping arm 33. When the diameter of the bent pipe 5 is greater than or equal to 40 mm and less than 60 mm, the second clamping arm 32 is selected for clamping, and the limiting threaded rod 341 is adjusted to the limiting groove 343 inside the second clamping arm 32. At this time, the positioning rod 342 is parallel to the gear display groove 345 in the middle position in the positioning groove 344. The limiting threaded rod 341 limits the second clamping arm 32 in the first clamping arm 31, and the third clamping arm 33 can be in the second clamping arm The holding arm 32 can slide arbitrarily inside, thereby the second clamping arm 32 clamps the bent pipe 5. When the diameter of the bent pipe 5 is greater than or equal to 60 mm and less than or equal to 80 mm, the first clamping arm 31 is selected for clamping, and the limiting threaded rod 341 is adjusted to the limiting groove 343 inside the first clamping arm 31. At this time, the positioning rod 342 is parallel to the uppermost gear display groove 345 in the positioning groove 344, and the second clamping arm 32 and the third clamping arm 33 are not limited. The second clamping arm 32 can slide arbitrarily inside the first clamping arm 31, thereby The bent pipe fitting 5 is clamped by the first clamping arm 31, and then the hand wheel 241 is twisted to drive the horizontal moving rod 242 to rotate, and the left-handed thread 243 and the right-handed thread 244 on the horizontal moving rod 242 drive the two vertical moving frames 25 to move in opposite directions, so that the clamping mechanism 3 clamps the bent pipe fitting 5, and then the clamping mechanism 3 is driven by the vertical moving rod 26 to move for height adjustment, and the turning frame 23 is turned by the adjusting wheel 22 for angle adjustment, so that the welding point of the bent pipe fitting 5 overlaps with the welding point of the equipment main frame 7, providing stable support for welding.

[0054] Example 2, reference Fig. 9 - Fig.10 , which is the second embodiment of the present invention, and which is different from the first embodiment in that: Fig. 9 The pressing assembly 4 includes a fixed frame 41 fixedly connected to the top of the movable frame 1, the inner wall of the fixed frame 41 is rotatably connected to the first swing arm 42, the inner wall of the first swing arm 42 is rotatably connected to the second swing arm 43, the outer wall of the second swing arm 43 is rotatably connected to the V-shaped pressing pipe fitting 44, and the bottom of the V-shaped pressing pipe fitting 44 overlaps the top of the bending pipe fitting 5.

[0055] Reference Fig.10 A swing shaft 45 and a fixed threaded rod 46 are rotatably connected between the fixed frame 41 and the first swing arm 42, between the first swing arm 42 and the second swing arm 43, and between the second swing arm 43 and the V-shaped pressing pipe fitting 44. The inner walls of the multiple swing shafts 45 are each provided with a fixing groove 47, and the inner walls of the multiple fixing grooves 47 are respectively threadedly connected to the outer walls of the multiple fixing threaded rods 46.

[0056] Specifically, the fixing frame 41 , the first swing arm 42 , the second swing arm 43 and the V-shaped pressing pipe fitting 44 are rotatably connected in sequence, and the first swing arm 42 , the second swing arm 43 and the V-shaped pressing pipe fitting 44 can be fixed by using a fixing threaded rod 46 .

[0057] During use, by adjusting the angle and distance between the first swing arm 42, the second swing arm 43 and the V-shaped pipe pressing member 44, the V-shaped pipe pressing member 44 is pressed on the upper side of the bent pipe member 5, and the plurality of fixed threaded rods 46 are rotated and pushed into the fixed grooves 47 of the corresponding swing shafts 45, so that the first swing arm 42, the second swing arm 43 and the V-shaped pipe pressing member 44 are fixed, thereby improving the stability during welding. The rest of the structure is the same as that of the first embodiment.

[0058] Working principle of the present invention:

[0059] During operation, the main frame 7 of the equipment is placed on the support table 6, and then the movable frame 1 is moved to the welding position, and the clamping mechanism 3 is adjusted according to the diameter of the bent pipe 5; when the diameter of the bent pipe 5 is greater than or equal to 15 mm and less than 40 mm, the third clamping arm 33 is selected for clamping, and the limiting threaded rod 341 is adjusted to the limiting groove 343 inside the third clamping arm 33. At this time, the positioning rod 342 is parallel to the lowest gear display groove 345 in the positioning groove 344, and the limiting threaded rod 341 limits the third clamping arm 33 and the second clamping arm 32 in the second clamping arm 32 and the first clamping arm 31 respectively, so that the third clamping arm 33 clamps the bent pipe 5.

[0060] When the diameter of the bent pipe 5 is greater than or equal to 40 mm and less than 60 mm, the second clamping arm 32 is selected for clamping, and the limiting threaded rod 341 is adjusted to the limiting groove 343 inside the second clamping arm 32. At this time, the positioning rod 342 is parallel to the gear display groove 345 in the middle position in the positioning groove 344. The limiting threaded rod 341 limits the second clamping arm 32 in the first clamping arm 31, and the third clamping arm 33 can slide arbitrarily inside the second clamping arm 32, thereby the second clamping arm 32 clamps the bent pipe 5.

[0061] When the diameter of the bent pipe 5 is greater than or equal to 60 mm and less than or equal to 80 mm, the first clamping arm 31 is selected for clamping, and the limiting threaded rod 341 is adjusted to the limiting groove 343 inside the first clamping arm 31. At this time, the positioning rod 342 is parallel to the top gear display groove 345 in the positioning groove 344, and the second clamping arm 32 and the third clamping arm 33 are not limited. The second clamping arm 32 can slide arbitrarily inside the first clamping arm 31, thereby the first clamping arm 31 clamps the bent pipe 5.

[0062] Then, the hand wheel 241 is twisted to drive the horizontal moving rod 242 to rotate, and the left-handed thread 243 and the right-handed thread 244 on the horizontal moving rod 242 drive the two vertical moving frames 25 to move in opposite directions, so that the clamping mechanism 3 clamps the bent pipe 5, and then the vertical moving rod 26 drives the clamping mechanism 3 to move for height adjustment, and the adjusting wheel 22 drives the flip frame 23 to flip for angle adjustment, so that the welding point of the bent pipe 5 overlaps with the welding point of the equipment main frame 7, providing stable support for welding.

[0063] Finally, by adjusting the angles and distances of the first swing arm 42, the second swing arm 43 and the V-shaped pipe pressing fitting 44, the V-shaped pipe pressing fitting 44 is pressed above the bent pipe fitting 5, and multiple fixed threaded rods 46 are rotated and pushed into the fixed grooves 47 of the corresponding swing shafts 45, so that the first swing arm 42, the second swing arm 43 and the V-shaped pipe pressing fitting 44 are fixed, thereby improving the stability during welding.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A support device for welding and assembling fitness equipment, comprising a movable frame (1), an adjustment mechanism (2) movably mounted inside the movable frame (1), two clamping mechanisms (3) movably mounted inside the adjustment mechanism (2), a pressing assembly (4) fixedly mounted above the movable frame (1), a bent pipe member (5) disposed between the two clamping mechanisms (3) and the pressing assembly (4), a support platform (6) disposed at the bottom of the movable frame (1), and an equipment main frame (7) disposed above the support platform (6), wherein the outer wall of the equipment main frame (7) overlaps the outer wall of the bent pipe member (5), and is characterized in that: The clamping mechanism (3) comprises a first clamping arm (31) movably mounted inside the adjusting mechanism (2); the inner wall of the first clamping arm (31) is slidably connected to a second clamping arm (32); the inner wall of the second clamping arm (32) is slidably connected to a third clamping arm (33); and a limiting assembly (34) is movably mounted inside the first clamping arm (31), the second clamping arm (32) and the third clamping arm (33); The limiting assembly (34) comprises a limiting groove (343) and a positioning groove (344) which are provided inside the first clamping arm (31), the second clamping arm (32) and the third clamping arm (33); the inner wall of the limiting groove (343) is threadedly connected to a limiting threaded rod (341); the bottom of the limiting threaded rod (341) is fixedly connected to a positioning rod (342); the outer wall of the positioning rod (342) is slidably connected to the inner wall of the positioning groove (344); and the outer wall of the first clamping arm (31) is provided with a plurality of gear display grooves (345); The clamping mechanism (3) further comprises a second telescopic spring (36) fixedly connected between the first clamping arm (31) and the second clamping arm (32), and a first telescopic spring (35) fixedly connected between the second clamping arm (32) and the third clamping arm (33); The pressing assembly (4) comprises a fixed frame (41) fixedly connected to the upper part of the movable frame (1); the inner wall of the fixed frame (41) is rotatably connected to a first swing arm (42); the inner wall of the first swing arm (42) is rotatably connected to a second swing arm (43); the outer wall of the second swing arm (43) is rotatably connected to a V-shaped pipe pressing member (44); the bottom of the V-shaped pipe pressing member (44) overlaps the top of the bent pipe member (5); A swing shaft (45) and a fixed threaded rod (46) are rotatably connected between the fixing frame (41) and the first swing arm (42), between the first swing arm (42) and the second swing arm (43), and between the second swing arm (43) and the V-shaped pressing pipe member (44). The inner walls of the plurality of swing shafts (45) are each provided with a fixed groove (47), and the inner walls of the plurality of fixed grooves (47) are respectively threadedly connected to the outer walls of the plurality of fixed threaded rods (46).

2. The support device for welding and assembling fitness equipment according to claim 1, characterized in that: The first clamping arm (31), the second clamping arm (32) and the third clamping arm (33) can respectively clamp curved pipes (5) of different diameters. When the third clamping arm (33) is used for clamping, the limiting threaded rod (341) is threadedly rotated into a limiting groove (343) inside the third clamping arm (33). At this time, the positioning rod (342) is located at the bottom of the positioning groove (344) and is parallel to the gear position display groove (345) at the bottom.

3. The support device for welding and assembling fitness equipment according to claim 2, characterized in that: When the second clamping arm (32) is used for clamping, the limiting threaded rod (341) is threadedly rotated into the limiting groove (343) inside the second clamping arm (32), and at this time, the positioning rod (342) is located in the middle position of the positioning groove (344) and is parallel to the gear position display groove (345) in the middle position.

4. The support device for welding and assembling fitness equipment according to claim 3, characterized in that: When the first clamping arm (31) is used for clamping, the limiting threaded rod (341) is threadedly rotated into the limiting groove (343) inside the first clamping arm (31), and the positioning rod (342) is now at the top of the positioning groove (344) and parallel to the top gear display groove (345).

5. The support device for welding and assembling fitness equipment according to claim 1, characterized in that: The adjustment mechanism (2) comprises a vertical moving rod (26) threadedly connected to the inner wall of the first clamping arm (31); the outer wall of the vertical moving rod (26) is rotatably connected to a vertical moving frame (25); and the inner wall of the vertical moving frame (25) is threadedly connected to a horizontal moving assembly (24).

6. The support device for welding and assembling fitness equipment according to claim 5, characterized in that: The horizontal moving assembly (24) comprises a horizontal moving rod (242) threadedly connected to the inner wall of the vertical moving frame (25); the outer wall of the horizontal moving rod (242) is provided with a left-handed thread (243) and a right-handed thread (244); the outer walls of the left-handed thread (243) and the right-handed thread (244) are respectively threadedly connected to the inner walls of the two vertical moving frames (25); and one end of the horizontal moving rod (242) is fixedly connected to a hand wheel (241).

7. The support device for welding and assembling fitness equipment according to claim 6, characterized in that: The adjusting mechanism (2) further comprises a flip frame (23) rotatably connected to the outer wall of the horizontal moving rod (242), both ends of the flip frame (23) are fixedly connected to rotating wheels (21), the outer walls of the two rotating wheels (21) are rotatably connected to the inner wall of the movable frame (1), and the outer wall of the rotating wheel (21) on the same side of the hand wheel (241) is fixedly connected to the adjusting wheel (22).

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