Welding device for preventing dynamic deformation of flat tube of treadmill

Abstract

The invention relates to the technical field of welding equipment, in particular to a treadmill flat tube anti-dynamic deformation welding device which comprises a rack, a first stand and a second stand are fixedly mounted at the top of a first table plate and the top of a second table plate respectively, and tilting transmission assemblies are arranged in the first stand and the second stand respectively. The tilting transmission assembly is used for driving the treadmill flat tube to tilt along the X axis; a middle bearing block is fixedly installed at the end of a piston stroke rod of the first air cylinder, and a rubber ring is installed at the top of the middle bearing block. An ejector rod arranged in the Y-axis direction is arranged on one side of the treadmill flat tube, the other end of the ejector rod is connected with a Y-axis adjusting assembly, a second air cylinder is arranged at the top of the third platen on the other side of the treadmill flat tube, the second air cylinder is connected with a welding gun, and the welding gun is used for welding a stamping opening of the treadmill flat tube. The structural strength and the sealing performance of the welding joint are fundamentally improved, and meanwhile the welding quality and the structural reliability of the flat tube of the treadmill are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and in particular discloses a treadmill flat tube anti-dynamic deformation welding device. Background Art

[0002] Treadmill flat tubes refer to special tubes with rectangular, oval or double oval cross-sections. They are used for key supporting structures such as the main vertical tube and chassis frame of the treadmill. They are mostly made of high-strength steel. The design of the flat tube can reduce the height of the entire treadmill through the horizontal extension of the flat cross-section, so as to achieve a compact structure, save space, and ensure load-bearing stability. During the production and processing of treadmill flat tubes, high-strength steel strips are precisely processed into oval or double oval cross-sections through a stamping process. A pipe seam is set on one side of the processed flat tube, which is a stamping opening. After forming, the stamping opening is sealed using welding technology to form a high-strength closed tube body.

[0003] The invention with authorization announcement number: CN118720355A introduces an environmentally friendly and energy-saving welding forming equipment for straight seam submerged arc welded pipes and a welding method thereof. The existing technology includes a support mechanism, a mobile drive mechanism, a flux feeding mechanism, a welding mechanism, a flux adsorption mechanism and a flux coating scraping mechanism. The mobile drive mechanism can drive the flux feeding mechanism and the flux coating scraping mechanism to move; the welding mechanism in the existing technology can be translated along the support mechanism, and by fixing the steel pipe under the horizontal bracket, the welding mechanism can weld the straight seam of the steel pipe.

[0004] The above-mentioned prior art is a vertical welding technology, in which the welding mechanism is arranged vertically to weld the straight seam. First, during the welding process, the molten iron in the molten pool in the straight seam of the steel pipe is subject to gravity and is prone to falling, resulting in undercutting on the upper side of the weld and weld nodules or unfused welds on the lower side due to accumulation of molten iron, which significantly weakens the joint strength and causes stress concentration. Second, it is difficult to control heat input during vertical welding. Arc blow can easily occur due to improper current parameters or uneven heat dissipation, exacerbating the risk of insufficient gas escape from the molten pool and slag retention, reducing the sealing of the weld structure, and severely shortening fatigue life. In addition, the thin-walled area at the edge of the stamped opening is prone to angular deformation or wave deformation under the high heat input of vertical welding, affecting the flatness and assembly accuracy of the treadmill frame and causing inconvenience to the assembly of the treadmill frame. Summary of the Invention

[0005] In view of the problems of low sealing of the welding structure and easy deformation of the edge of the punched opening in the current welding operation of the flat tube of a treadmill, the present invention provides a treadmill flat tube anti-dynamic deformation welding device.

[0006] To solve the above problems, the present invention provides the following technical solutions: A treadmill flat tube anti-dynamic deformation welding device includes a platform, the platform is provided with a first platform and a second platform arranged in the horizontal direction of the X-axis and with adjustable spacing, the tops of the first platform and the second platform are respectively fixedly installed with a first vertical frame and a second vertical frame, the first vertical frame and the second vertical frame are both provided with a tilting transmission assembly, the two tilting transmission assemblies are both connected to a driving shaft, the two driving shafts are respectively fastened to two inner plates, and the two inner plates are respectively embedded on the inner sides of the ports of the treadmill flat tube, the tilting transmission assembly is used to drive the treadmill flat tube to flip and tilt along the X-axis; a No. 1 cylinder is fixedly installed in the platform, and a middle bearing block is fixedly installed at the end of the piston stroke rod of the No. 1 cylinder, and the top of the middle bearing block The top of the treadmill is provided with a rubber ring that fits with the bottom of the treadmill flat tube; a push rod arranged along the Y-axis direction is provided on one side of the treadmill flat tube, one end of the push rod can contact the treadmill flat tube, and the other end of the push rod is connected with a Y-axis adjustment component, and the Y-axis adjustment component is used to adjust the arrangement position of the push rod along the horizontal direction of the Y-axis. A third platform with adjustable position along the horizontal direction of the X-axis is provided on the other side of the treadmill flat tube, and a No. 2 cylinder with adjustable position along the vertical direction of the Z-axis and adjustable flip angle along the X-axis is provided on the top of the third platform. The No. 2 cylinder is arranged along the horizontal direction of the Y-axis, and the end of the piston stroke rod of the No. 2 cylinder is fastened with a welding gun, and the welding gun is used to weld the stamped opening of the treadmill flat tube.

[0007] Preferably, the platform is provided with two symmetrically arranged spacing adjustment components, and the two spacing adjustment components are respectively connected to the first platform and the second platform; the spacing adjustment component includes a No. 3 cylinder arranged along the horizontal direction of the X-axis, and the No. 3 cylinder is fastened to the platform through a mounting plate, and an adjustment plate is fixedly installed on the end of the piston stroke rod of the No. 3 cylinder, and a through groove is provided on the platform for convenience of the adjustment plate to pass through, and the two adjustment plates are respectively fastened to the first platform and the second platform, and a plurality of first track plates arranged along the horizontal direction of the X-axis are fixedly installed on the platform, and a first sliding seat is slidably installed on each first track plate, and the tops of the first sliding seats in the two spacing adjustment components are respectively fastened to the first platform and the second platform.

[0008] Preferably, the two tilting transmission assemblies each include an electric motor, and the two electric motors are respectively fastened to the first frame and the second frame, and the first transmission plate is fastened on the output shaft of the electric motor, and the first rod seat and the second rod seat are fixedly installed in the first frame and the second frame, and a transmission rod arranged along the Y-axis horizontal direction is rotatably installed in the first rod seat and the second rod seat, and the outer end of the transmission rod is fixedly mounted with the second transmission plate, and the first transmission plate and the second transmission plate are connected by a belt drive; the transmission rod is mounted with a first transmission plate and a second transmission plate, and the transmission rod drives the first transmission plate and the second transmission plate to move towards each other or away from each other, and the driving shaft is fastened to the rotating plate, and the inner sides of the bottom and top edges of the rotating plate are respectively mounted with a symmetrically arranged first driving rod and a second driving rod, and the first driving rod and the second driving rod are respectively transmission-connected to the first transmission plate and the second transmission plate, and when the first transmission plate and the second transmission plate move towards each other, the rotating plate can rotate counterclockwise, and when the first transmission plate and the second transmission plate move away from each other, the rotating plate can rotate clockwise.

[0009] The second transmission gear is connected with the drive shaft by the linking mechanism, and the transmission gear is connected with the drive shaft by the linking mechanism. The second transmission gear is connected with the drive shaft by the linking mechanism. The transmission gear is connected with the drive shaft by the linking mechanism.

[0010] Preferably, the thread lengths of the forward-spinning thread and the reverse-spinning thread are the same, the thread length of the forward-spinning thread is greater than the radius of the rotating disk, the spacing between the first drive block and the first transmission plate is equal to the spacing between the second drive block and the second transmission plate, and the spacing between the first drive block and the first transmission plate is less than the thread length of the forward-spinning thread.

[0011] Preferably, the Y-axis adjustment assembly includes a first support and a second support which are fastened to the table, a No. 4 cylinder is fixedly installed in the first support, a second track plate is fixedly installed on the second support, a second sliding seat is slidably installed on the second track plate, a receiving seat is fastened to the top of the second sliding seat, a connecting plate is fastened to the end of the piston stroke rod of the No. 4 cylinder, the connecting plate is fastened to the side of the receiving seat, and a connecting seat is provided on the side of the receiving seat for engaging with the push rod.

[0012] Preferably, the first support and the second support are arranged to be tilted downward in the Y-axis direction, and a third support is fixedly installed on the platform. The middle part of the top rod is a straight part arranged in the horizontal direction of the Y-axis, and the straight part slides with the third support. Both ends of the top rod are bent parts arranged to be tilted upward in the Z-axis direction.

[0013] Preferably, an electromagnetic slide rail and a third track plate arranged along the horizontal direction of the X-axis are fixedly installed on the platform, a third sliding seat is slidably installed on the third track plate, and the sliding end of the third sliding seat and the electromagnetic slide rail are fastened together with the third platform.

[0014] Preferably, the third platen is fixedly mounted with a No. 5 cylinder arranged in the vertical direction of the Z axis, the top of the cylinder body of the No. 5 cylinder is fixedly mounted with a load plate, the load plate is fixedly mounted with a hinge seat, the third hinge plate is hingedly mounted on the hinge seat, the end of the piston stroke rod of the No. 5 cylinder is hingedly mounted with a fourth hinge plate, the fourth hinge plate is hinged to the third hinge plate, the fourth hinge plate is fixedly mounted with a support rod, and the cylinder body of the No. 1 cylinder is fastened to the top of the support rod.

[0015] Preferably, a plurality of evenly arranged supporting legs are fixedly mounted on the bottom of the stand.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides a first platen and a second platen with adjustable spacing, and a first stand and a second stand mounted thereon, and a spacing adjustment assembly driven by a No. 3 cylinder, thereby controlling the spacing between the first platen and the second platen, so that the inner plate can accurately adapt to treadmill flat tubes of different lengths and firmly embed their ports, forming a stable end reference. The No. 1 cylinder drives the middle bearing block and the rubber ring on its top to flexibly fit and support the bottom of the tube body, providing buffering and adapting to posture changes, absorbing vibrations, and at the same time, the push rod elastically presses the tube body from the side. The above three directions work together to form a dynamically stable three-dimensional constraint field under the welding thermal cycle, significantly limiting the free contraction and warping of the tube body, especially the thin-walled area of ​​the stamped opening, effectively resisting local dynamic deformation such as angular deformation and wave deformation caused by thermal stress, and ensuring the final geometric accuracy and flatness of the treadmill flat tube; 2. The present invention provides two tilting transmission assemblies that work together to precisely drive the inner plate embedded in the pipe mouth and the entire treadmill flat tube to tilt around the X-axis, and adjust the angle of the horizontal stamping opening to facilitate tilt welding. This fundamentally eliminates the drop of the molten pool caused by gravity and ensures uniform distribution of the molten metal. The welding gun is installed on a third platen that can move horizontally along the X-axis. Its height is adjusted along the Z-axis by a No. 5 cylinder through a load plate. Its welding angle is steplessly adjusted around the X-axis by a hinge mechanism consisting of a hinge seat, a third hinge plate, and a fourth hinge plate. The above structure jointly ensures that the welding gun can always accurately align and track the stamping opening at the optimal angle, distance, and trajectory, providing stable and uniform heat input, creating a stable molten pool environment, and greatly reducing arc blow, air holes, and slag inclusions, thereby obtaining a high-strength sealed weld with good fusion, consistent penetration, and internal density. 3. The tilting transmission assembly in the present invention can drive the first and second transmission plates to move linearly in opposite directions by setting a forward-rotating thread and a reverse-rotating thread, and drive the first driving block and the second driving block to move through the first sliding rod and the second sliding rod, and then convert the linear displacement into an arc motion of the driving rod through the first hinge plate and the second hinge plate, and finally push the rotating disk to achieve angular rotation. The above design completes motion amplification with high rigidity and low inertia characteristics, and the transmission ratio is precisely controllable and has no return gap. A mechanical limit is formed by limiting the distance between the driving block and the transmission plate to avoid overtravel jamming, and the slight elastic deformation ability of the first hinge plate and the second hinge plate can absorb instantaneous stress impact, so as to eliminate intermediate transmission errors and ensure that the flipping angle error of the treadmill flat tube is controlled within the standard range, further improving the stability of the welding quality of the stamping opening of the treadmill flat tube, and creating basic conditions for high-quality welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the present invention, the following briefly introduces the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive efforts. Figure 1 The overall structure of the device of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the device of the present invention is shown in FIG. Figure 2 ; Figure 3 This is a schematic diagram of the installation of the tilting transmission assembly and the Y-axis adjustment assembly of the present invention; Figure 4 This is a schematic diagram of the mandrel installation structure of the present invention; Figure 5 This is a schematic diagram of the through-groove structure of the present invention; Figure 6This is a schematic diagram of the flat tube arrangement structure of the treadmill of the present invention; Figure 7 This is a schematic diagram of the installation structure of the adjustment plate of the present invention; Figure 8 This is a schematic diagram of the motor installation structure of the present invention; Figure 9 This is a schematic diagram of the specific structure of the tilting transmission assembly of the present invention; Figure 10 Schematic diagram of the structure of the forward-spinning thread and the reverse-spinning thread of the present invention; Figure 11 This is a schematic diagram of the rubber ring installation structure of the present invention; Figure 12 This is a schematic diagram of the specific structure of the Y-axis adjustment component of the present invention; Figure 13 This is a schematic diagram of the third platform installation structure of the present invention; Figure 14 This is a schematic diagram of the welding gun installation structure of the present invention; In the figure: 1. platform, 2. first platform, 3. second platform, 4. first vertical frame, 5. second vertical frame, 6. tilting transmission assembly, 601. motor, 602. first transmission disc, 603. first rod seat, 604. second rod seat, 605. transmission rod, 606. second transmission disc, 607. belt, 608. first transmission plate, 609. second transmission plate, 610. rotating disc, 611. first driving rod, 612. second driving rod, 613. forward thread, 614. reverse thread, 615. first sliding rod, 616. second sliding rod, 617. first driving block, 618. second driving block, 619. first hinge plate, 620. second hinge plate, 7. driving shaft, 8. inner plate, 9. treadmill flat tube, 10. No. 1 cylinder, 11. middle bearing block, 12. rubber ring, 13. Push rod, 14. Y-axis adjustment assembly, 1401. First support, 1402. Second support, 1403. No. 4 cylinder, 1404. Second track plate, 1405. Second sliding seat, 1406. Receiver seat, 1407. Connecting plate, 1408. Clamping seat, 1409. Third support, 15. Third platform, 16. No. 2 cylinder, 17. Welding gun, 18. Spacing adjustment assembly, 1801. No. 3 cylinder, 1802. Mounting plate, 1803. Adjustment plate, 1804. First track plate, 1805. First sliding seat, 19. Through slot, 20. Electromagnetic slide rail, 21. Third track plate, 22. Third sliding seat, 23. No. 5 cylinder, 24. Load plate, 25. Articulated seat, 26. Third hinged plate, 27. Fourth hinged plate, 28. Support rod, 29. Support leg. DETAILED DESCRIPTION

[0018] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] This specific embodiment provides a treadmill flat tube anti-dynamic deformation welding device, such as Figures 1-14 As shown, the apparatus comprises a stand 1, which is a two-layer structure. The top layer serves as the main support structure of the welding device. Multiple columns are fixedly mounted within the stand 1 to enhance its stability and provide a partition cavity within the stand 1. Multiple support legs 29 are fixedly mounted at the bottom of the stand 1. The top ends of the support legs 29 are securely connected to the bottom layer of the stand 1. The multiple support legs 29 are evenly arranged and vertically arranged. In this embodiment, the vertical arrangement direction is the Z-axis direction.

[0020] like Figure 5-Figure 7 As shown, the top layer of the platform 1 is provided with two symmetrically arranged spacing adjustment assemblies 18. The two spacing adjustment assemblies 18 are respectively connected to the first platform 2 and the second platform 3. The first platform 2 and the second platform 3 are both arranged horizontally along the X-axis. The two spacing adjustment assemblies 18 can be used to adjust the spacing between the first platform 2 and the second platform 3. This embodiment is described with reference to the spacing adjustment assembly 18 connected to the first platform 2. The spacing adjustment assembly 18 includes a number 3 cylinder 1801, which is disposed in a spacer cavity within the platform 1 and arranged horizontally along the X-axis. The No. 3 cylinder 1801 is fastened to the top layer of the platform 1 via a mounting plate 1802. An adjustment plate 1803 is fixedly mounted to the end of the piston stroke rod of the No. 3 cylinder 1801. The platform 1 is provided with a through slot 19 for the adjustment plate 1803 to pass through. The adjustment plate 1803 is fastened to the bottom of the first platform 2. The position of the adjustment plate 1803 is adjusted by controlling the piston stroke rod of the No. 3 cylinder 1801. A plurality of first track plates 1804 are fixedly mounted on the platform 1. The first track plates 1804 are arranged horizontally along the X-axis. A first sliding seat 1805 is slidably mounted on each first track plate 1804. The top of each first sliding seat 1805 is fastened to the bottom of the first platform 2, so that the first track plates 1804 provide a supporting sliding structure for position adjustment of the adjustment plates 1803.

[0021] like Figure 3 、 Figure 6As shown, a first vertical frame 4 and a second vertical frame 5 are fixedly mounted on the tops of the first and second platform plates 2 and 3, respectively. A treadmill flat tube 9 is disposed between the first and second vertical frames 4 and 5, and the treadmill flat tube 9 is arranged horizontally along the X-axis. A tilting transmission assembly 6 is disposed within each of the first and second vertical frames 4 and 5. Inner plates 8 are embedded in the inner sides of the ports on both sides of the treadmill flat tube 9. The shape of the inner plates 8 matches the shape of the ports of the treadmill flat tube 9, and the two inner plates 8 can secure the ends of the treadmill flat tube 9. The two tilting transmission assemblies 6 can tilt the treadmill flat tube 9 along the X-axis via a drive shaft 7.

[0022] This embodiment is described with the tilting transmission assembly 6 in the first stand 4; Figures 8-10 As shown. The first frame 4 is composed of two vertical plates connected by a connecting rod in the middle. The tilting transmission assembly 6 includes a motor 601, which is fastened to the outer side of the vertical plates of the first frame 4 via a side mounting bracket. A first rod seat 603 and a second rod seat 604 are fixedly mounted on the inner side of the vertical plates of the first frame 4. A transmission rod 605 is mounted in the first and second rod seats 603 and 604 for joint rotation. The transmission rod 605 is arranged horizontally along the Y-axis. One end of the transmission rod 605 extends from the first rod seat 603 and is arranged outside the first frame 4. A first transmission disc 602 is fastened to the output shaft of the motor 601. A second transmission disc 606 is fixed to the outer end of the transmission rod 605. The first and second transmission discs 602 and 606 are connected by a belt 607, thereby allowing the motor 601 to drive the transmission rod 605 to rotate within the first frame 4. The first transmission disc 602 is provided with a plurality of belt grooves with different inner diameters, which can adjust the tightness of the belt 607 on the one hand and the differential ratio of the motor 601 on the other hand, thereby controlling the output efficiency of the motor 601 .

[0023] The transmission rod 605 is provided with a first transmission plate 608 and a second transmission plate 609. The first transmission plate 608 and the second transmission plate 609 are not in contact with the first stand 4. Figure 9The first and second transmission plates 608 and 609 are positioned at the ends of a transmission rod 605. The transmission rod 605 is provided with a forward-spinning thread 613 and a reverse-spinning thread 614. The forward-spinning thread 613 and the reverse-spinning thread 614 are symmetrically arranged on the transmission rod 605. A rounded portion is provided between the forward-spinning thread 613 and the reverse-spinning thread 614. The rounded portion serves as a partition between the forward-spinning thread 613 and the reverse-spinning thread 614. The first and second transmission plates 608 and 609 are respectively engaged in threaded rotation with the forward-spinning thread 613 and the reverse-spinning thread 614. A drive shaft 7 is mounted on the surface of the inner panel 8 on the side adjacent to the first stand 4. A rotating disk 610 is provided between the two vertical plates of the first stand 4. The rotating disk 610 is a circular disk structure, and the center of the rotating disk 610 is connected to the drive shaft 7. A first driving rod 611 and a second driving rod 612 are symmetrically installed on the inner sides of the bottom and top edges of the rotating disk 610. The first driving rod 611 and the second driving rod 612 are both arranged horizontally along the X-axis and parallel to the driving shaft 7.

[0024] A first slide bar 615 and a second slide bar 616 are fixedly connected to the inner sides of the first transmission plate 608 and the second transmission plate 609, respectively. The first slide bar 615 is arranged on the lower side of the transmission rod 605, and the second slide bar 616 is arranged on the upper side of the transmission rod 605, so that the first slide bar 615 and the second slide bar 616 are arranged on both sides of the transmission rod 605 and are arranged parallel to the transmission rod 605. Circular holes are formed in the first transmission plate 608 and the second transmission plate 609 to facilitate the passage of the first slide bar 615 and the second slide bar 616, so that the first slide bar 615 and the second slide bar 616 are slidably engaged with the second transmission plate 609 and the first transmission plate 608, respectively. The outer periphery of the first sliding rod 615 and the second sliding rod 616 are respectively fastened with a first driving block 617 and a second driving block 618. The outer side of the first driving block 617 is hingedly installed with a first hinge plate 619 through a pin shaft. The first hinge plate 619 is hinged to the first driving rod 611. The outer side of the second driving block 618 is hingedly installed with a second hinge plate 620 through a pin shaft. The second hinge plate 620 is hinged to the second driving rod 612. When the motor 601 drives the transmission rod 605 to rotate counterclockwise, the first transmission plate 608 and the second transmission plate 609 can reduce the distance between them under the transmission action of the transmission rod 605. Specifically, the first transmission plate 608 and the second transmission plate 609 move towards each other, so that the second driving block 618 gradually approaches the first transmission plate 608, and at the same time, the first driving block 617 gradually approaches the second transmission plate 609, so that the rotating disk 610 rotates counterclockwise. Under the linkage action of the driving shaft 7, the rotating disk 610 drives the embedded plate 8 to drive the treadmill flat tube 9 to flip and tilt counterclockwise along the X-axis, so that the stamping opening of the treadmill flat tube 9 is tilted upward; conversely, the transmission rod 605 is driven clockwise by the motor 601 to reset the treadmill flat tube 9 to its initial position.

[0025] Among them, the thread length dimensions of the forward-spinning thread 613 and the reverse-spinning thread 614 are the same, which is used to improve the synchronization during the movement of the first transmission plate 608 and the second transmission plate 609; the thread length dimension of the forward-spinning thread 613 is larger than the radius dimension of the rotating disk 610, thereby controlling the flipping angle of the treadmill flat tube 9 within the range of 90°; the spacing dimension between the first driving block 617 and the first transmission plate 608 is equal to the spacing dimension between the second driving block 618 and the second transmission plate 609, and the spacing dimension between the first driving block 617 and the first transmission plate 608 is smaller than the thread length dimension of the forward-spinning thread 613, so that the thread lengths of the forward-spinning thread 613 and the reverse-spinning thread 614 meet the required moving distances of the first transmission plate 608 and the second transmission plate 609, thereby improving the coordination of the tilting transmission assembly 6.

[0026] like Figure 11As shown, a No. 1 cylinder 10 is fixedly installed inside the platform 1. There are four No. 1 cylinders 10 in total, arranged in groups of two. The two No. 1 cylinders 10 in the same group are arranged on the same side of the treadmill flat tube 9. The No. 1 cylinders 10 are all arranged in a partition cavity inside the platform 1 and are connected to its top layer. The No. 1 cylinders 10 are all arranged vertically along the Z axis. The end of the piston stroke rod of each No. 1 cylinder 10 can extend out of the platform 1 and be arranged above the platform 1. The end of the piston stroke rod of each No. 1 cylinder 10 is fixedly installed with a center support block 11. The top of the center support block 11 is installed with a rubber ring 12. The rubber ring 12 can fit the bottom of the treadmill flat tube 9. By providing a matching structure of the No. 1 cylinders 10 and the rubber ring 12, the treadmill flat tube 9 can be effectively supported. This not only facilitates the transportation operation of the treadmill flat tube 9 at the front end, but also provides stable support for the punching and opening welding operation of the treadmill flat tube 9.

[0027] like Figure 12 As shown, a Y-axis adjustment component 14 is fixedly installed above the platform 1, and the Y-axis adjustment component 14 is arranged on one side of the rear portion of the treadmill flat tube 9. The Y-axis adjustment assembly 14 includes a first support 1401 and a second support 1402 which are fastened to the stand 1. There are two second supports 1402. The first support 1401 and the second support 1402 are both arranged tilted downward in the Y-axis direction. A No. 4 cylinder 1403 is fixedly installed in the first support 1401. A second track plate 1404 is fixedly installed on the two second supports 1402. A second sliding seat 1405 is slidably installed on the second track plate 1404. The top of the second sliding seat 1405 is fastened with a receiving seat 1406. A connecting plate 1407 is fastened with the end of the piston stroke rod of the No. 4 cylinder 1403. The connecting plate 1407 is fastened with the side of the receiving seat 1406. The position of the receiving seat 1406 can be appropriately adjusted under the drive of the No. 4 cylinder 1403. A snap-fit ​​seat 1408 is provided on the side of the receiving seat 1406, and the snap-fit ​​seat 1408 is snap-fitted with the push rod 13. A third support 1409 is fixedly mounted on the platform 1. The middle portion of the push rod 13 is a straight portion arranged horizontally along the Y-axis, which slides with the third support 1409. Both ends of the push rod 13 are bent portions arranged upwardly along the Z-axis. The end of the push rod 13 away from the Y-axis adjustment assembly 14 can contact the treadmill flat tube 9, thereby assisting in supporting the treadmill flat tube 9 and further enhancing its stability.

[0028] like Figure 13-14As shown, the platform 1 is fixedly installed with an electromagnetic slide rail 20 and a third track plate 21 arranged along the horizontal direction of the X-axis. The electromagnetic slide rail 20 and the third track plate 21 are arranged on the front side of the treadmill flat tube 9. The third sliding seat 22 is slidably installed on the third track plate 21. The sliding end of the third sliding seat 22 and the electromagnetic slide rail 20 are fastened together with the third table 15, so that the electromagnetic slide rail 20 drives the third table 15 to adjust its position along the horizontal direction of the X-axis. The third table 15 is fixedly installed with a No. 5 cylinder 23 arranged along the vertical direction of the Z-axis. The top of the cylinder body of the No. 5 cylinder 23 is fixedly installed with a load plate 24. The load plate 24 is fixedly installed with a hinge seat 25. The third hinge plate 26 is hingedly installed on the hinge seat 25. The piston stroke rod end of the No. 5 cylinder 23 is hingedly installed with a fourth hinge plate 27. Figure 14 The figure shows the layout of the fourth hinge plate 27 in its initial state. The fourth hinge plate 27 is hinged to the third hinge plate 26. The tilt angle of the fourth hinge plate 27 along the X-axis can be adjusted by controlling the piston stroke rod of the No. 5 cylinder 23. Two support rods 28 are fixedly mounted on the fourth hinge plate 27. The tops of the two support rods 28 are fastened to the No. 2 cylinder 16. The cylinder body of the No. 2 cylinder 16 is fastened to the tops of the support rods 28. The No. 2 cylinder 16 is arranged horizontally along the Y-axis. A welding gun 17 is fastened to the end of the piston stroke rod of the No. 2 cylinder 16. The welding gun 17 is used to weld the punched openings of the treadmill's flat tubes 9.

[0029] The working principle of the present invention is: Before welding the punched opening of the treadmill flat tube 9, the No. 1 cylinder 10 is controlled to make the arrangement positions of each rubber ring 12 in the vertical direction of the Z axis the same, so that the treadmill flat tube 9 is placed on the rubber ring 12 and stably arranged above the stand 1.

[0030] Cylinder No. 3 1801 drives adjustment plate 1803, causing first platform 2 to drive first frame 4, and second platform 3 to drive second frame 5. This reduces the distance between first frame 4 and second frame 5, allowing two inner panels 8 to enter the inner side of treadmill flat tube 9 through the openings at both ends. The inner panels 8 effectively support both ends of treadmill flat tube 9. Motor 601 controls the rotation of transmission rod 605, which, in conjunction with first and second transmission plates 608 and 609, rotates rotating disk 610, causing treadmill flat tube 9 to tilt counterclockwise and tilt the punched opening of treadmill flat tube 9 upward. The flipping angle of the No. 2 cylinder 16 can be controlled by the No. 5 cylinder 23, so that the welding head of the welding gun 17 is adapted to the inclination angle of the stamping opening of the treadmill flat tube 9, so that the included angle is greater than 90°, and under the action of the No. 2 cylinder 16, the welding head of the welding gun 17 is close to the stamping opening of the treadmill flat tube 9, and at the same time, under the driving action of the electromagnetic slide rail 20, the stamping opening of the treadmill flat tube 9 is welded.

[0031] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A treadmill flat tube anti-dynamic deformation welding device, comprising a stand (1), characterized in that: The platform (1) is provided with a first platform (2) and a second platform (3) arranged in the horizontal direction of the X-axis and with adjustable spacing, and the tops of the first platform (2) and the second platform (3) are respectively fixedly mounted with a first vertical frame (4) and a second vertical frame (5), and the first vertical frame (4) and the second vertical frame (5) are both provided with a tilting transmission assembly (6), and the two tilting transmission assemblies (6) are both connected to a driving shaft (7), and the two driving shafts (7) are respectively fastened to two inner panels (8), and the two inner panels (8) are respectively embedded in the inner side of the port of the treadmill flat tube (9), and the tilting transmission assembly (6) is used to drive the treadmill flat tube (9) to tilt along the X-axis; a No. 1 cylinder (10) is fixedly mounted in the platform (1), and a middle support block (11) is fixedly mounted on the end of the piston stroke rod of the No. 1 cylinder (10), and a top of the middle support block (11) is mounted with a piston rod connected to the treadmill flat tube. (9) a rubber ring (12) fitted at the bottom; one side of the treadmill flat tube (9) is provided with a push rod (13) arranged along the Y-axis direction, one end of the push rod (13) can contact the treadmill flat tube (9), and the other end of the push rod (13) is connected to a Y-axis adjustment component (14), and the Y-axis adjustment component (14) is used to adjust the arrangement position of the push rod (13) along the horizontal direction of the Y-axis. The other side of the treadmill flat tube (9) is provided with a third platen (15) whose position is adjustable along the horizontal direction of the X-axis, and the top of the third platen (15) is provided with a No. 2 cylinder (16) whose position is adjustable along the vertical direction of the Z-axis and whose flip angle is adjustable along the X-axis, and the No. 2 cylinder (16) is arranged along the horizontal direction of the Y-axis, and the end of the piston stroke rod of the No. 2 cylinder (16) is fastened with a welding gun (17), and the welding gun (17) is used to weld the punched opening of the treadmill flat tube (9).

2. A treadmill flat tube anti-dynamic deformation welding device according to claim 1, characterized in that: The platform (1) is provided with two symmetrically arranged spacing adjustment components (18), and the two spacing adjustment components (18) are connected to the first platform (2) and the second platform (3) respectively; the spacing adjustment component (18) includes a No. 3 cylinder (1801) arranged in the horizontal direction of the X-axis, the No. 3 cylinder (1801) is fastened to the platform (1) through a mounting plate (1802), and an adjustment plate (1803) is fixedly mounted on the end of the piston stroke rod of the No. 3 cylinder (1801). There is a through slot (19) for the adjustment plate (1803) to pass through, and the two adjustment plates (1803) are respectively fastened to the first table plate (2) and the second table plate (3). A plurality of first track plates (1804) arranged horizontally along the X-axis are fixedly mounted on the table frame (1), and a first sliding seat (1805) is slidably mounted on each first track plate (1804). The tops of the first sliding seats (1805) in the two spacing adjustment assemblies (18) are respectively fastened to the first table plate (2) and the second table plate (3).

3. The treadmill flat tube anti-dynamic deformation welding device according to claim 1, characterized in that: The two tilting transmission assemblies (6) each include an electric motor (601), and the two electric motors (601) are respectively fastened to the first stand (4) and the second stand (5); a first transmission disc (602) is fastened on the output shaft of the electric motor (601); a first rod seat (603) and a second rod seat (604) are fixedly installed in the first stand (4) and the second stand (5); a transmission rod (605) arranged in the horizontal direction of the Y axis is rotatably installed in the first rod seat (603) and the second rod seat (604); the outer end of the transmission rod (605) is fixedly fitted with a second transmission disc (606); the first transmission disc (602) and the second transmission disc (606) are connected to each other by a belt (607); a first transmission plate (608), a second transmission plate (609) and a second transmission plate (601) are fitted on the transmission rod (605); Two transmission plates (609), the transmission rod (605) drives the first transmission plate (608) and the second transmission plate (609) to move toward or away from each other, the driving shaft (7) is fastened to the rotating disk (610), and the inner sides of the bottom and top edges of the rotating disk (610) are respectively installed with a first driving rod (611) and a second driving rod (612) arranged symmetrically, the first driving rod (611) and the second driving rod (612) are respectively connected to the first transmission plate (608) and the second transmission plate (609) for transmission, when the first transmission plate (608) and the second transmission plate (609) move toward each other, the rotating disk (610) can be rotated counterclockwise, and when the first transmission plate (608) and the second transmission plate (609) move away from each other, the rotating disk (610) can be rotated clockwise.

4. A treadmill flat tube anti-dynamic deformation welding device according to claim 3, characterized in that: The rotating disk (610) is a circular disk structure. The center of the rotating disk (610) is connected to the driving shaft (7). The transmission rod (605) is provided with a forward-spinning thread (613) and a reverse-spinning thread (614). The first transmission plate (608) and the second transmission plate (609) are respectively threadedly matched with the forward-spinning thread (613) and the reverse-spinning thread (614). The inner sides of the first transmission plate (608) and the second transmission plate (609) are respectively fixedly connected with a first slide bar (615) and a second slide bar (616). The first slide bar (615) and the second slide bar (616) are respectively arranged on The first slide bar (615) and the second slide bar (616) are arranged on both sides of the transmission rod (605) and parallel to it, and the first slide bar (615) and the second slide bar (616) are respectively slidably matched with the second transmission plate (609) and the first transmission plate (608), and the peripheries of the first slide bar (615) and the second slide bar (616) are respectively fastened with a first driving block (617) and a second driving block (618), and a first hinge plate (619) is hingedly installed between the first driving block (617) and the first driving rod (611), and a second hinge plate (620) is hingedly installed between the second driving block (618) and the second driving rod (612).

5. A treadmill flat tube anti-dynamic deformation welding device according to claim 4, characterized in that: The thread lengths of the forward-spinning thread (613) and the reverse-spinning thread (614) are the same, the thread length of the forward-spinning thread (613) is greater than the radius of the rotating disk (610), the spacing between the first driving block (617) and the first transmission plate (608) is equal to the spacing between the second driving block (618) and the second transmission plate (609), and the spacing between the first driving block (617) and the first transmission plate (608) is less than the thread length of the forward-spinning thread (613).

6. The treadmill flat tube anti-dynamic deformation welding device according to claim 1, characterized in that: The Y-axis adjustment assembly (14) includes a first support (1401) and a second support (1402) which are fastened to the stand (1); a No. 4 cylinder (1403) is fixedly installed in the first support (1401); a second track plate (1404) is fixedly installed on the second support (1402); a second sliding seat (1405) is slidably installed on the second track plate (1404); a receiving seat (1406) is fastened to the top of the second sliding seat (1405); a connecting plate (1407) is fastened to the end of the piston stroke rod of the No. 4 cylinder (1403); the connecting plate (1407) is fastened to the side of the receiving seat (1406); and a connecting seat (1408) which is fastened to the side of the receiving seat (1406) is provided with a connecting seat (1408) which is fastened to the push rod (13).

7. A treadmill flat tube anti-dynamic deformation welding device according to claim 6, characterized in that: The first support (1401) and the second support (1402) are both arranged to be tilted downward in the Y-axis direction, and a third support (1409) is fixedly mounted on the stand (1). The middle portion of the top rod (13) is a straight portion arranged in the horizontal direction of the Y-axis, and the straight portion is slidably matched with the third support (1409). Both ends of the top rod (13) are bent portions arranged to be tilted upward in the Z-axis direction.

8. The treadmill flat tube anti-dynamic deformation welding device according to claim 1, characterized in that: An electromagnetic slide rail (20) and a third track plate (21) arranged in the horizontal direction of the X-axis are fixedly mounted on the platform (1); a third sliding seat (22) is slidably mounted on the third track plate (21); and the sliding end of the third sliding seat (22) and the electromagnetic slide rail (20) are fastened together with the third platform (15).

9. The treadmill flat tube anti-dynamic deformation welding device according to claim 1, characterized in that: A No. 5 cylinder (23) arranged in the vertical direction of the Z axis is fixedly mounted on the third platen (15); a load plate (24) is fixedly mounted on the top of the cylinder body of the No. 5 cylinder (23); a hinge seat (25) is fixedly mounted on the load plate (24); a third hinge plate (26) is hingedly mounted on the hinge seat (25); a fourth hinge plate (27) is hingedly mounted on the end of the piston stroke rod of the No. 5 cylinder (23); the fourth hinge plate (27) is hinged to the third hinge plate (26); a support rod (28) is fixedly mounted on the fourth hinge plate (27); the cylinder body of the No. 1 cylinder (10) is fastened to the top of the support rod (28).

10. The treadmill flat tube anti-dynamic deformation welding device according to claim 1, characterized in that: A plurality of evenly arranged supporting legs (29) are fixedly mounted on the bottom of the stand (1).

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