Automatic position changing tool for making semitrailer

Abstract

The application discloses a kind of automatic variable position tool for making semitrailer, it is related to the field of manufacturing production tool, including two mobile devices, two pairs of ground rails, frame body and installation unit, two the mobile device is respectively arranged on two pairs of ground rails and is used to move transport frame body, the installation unit is installed between two pairs of ground rails, variable position mechanism is installed on each the mobile device for frame body is positioned and turned over, a plurality of supporting frames are also provided between two pairs of the ground rail for placing frame body before supporting and positioning and turning over, the present application adopts mobile device, variable position mechanism and clamping unit, and a series of actions such as automatic clamping, lifting, turning, placing and the like are realized on frame, manual contact is reduced, production safety is improved, and after turning, frame can be accurately placed on the installation table of next process, so that production rhythm is improved, quality and efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of manufacturing tooling, and more particularly to an automatic positioning tooling for semi-trailer manufacturing. Background Technology

[0002] In the traditional manufacturing process of container semi-trailers, a gantry crane in the workshop is required to flip the semi-trailer frame. However, the semi-trailer frame is long and the weight distribution at both ends is uneven. Flipping the frame with a gantry crane is a complicated operation that requires multiple employees to work together near the workpiece. This not only results in low efficiency but also poses a risk of the frame slipping off the crane during the flipping process, causing personal injury or death. Safety cannot be guaranteed. Furthermore, after flipping the frame with a gantry crane, precise positioning cannot be achieved, requiring secondary movement before subsequent installation processes can be carried out, leading to low production efficiency. Therefore, an automatic positioning tooling for semi-trailer manufacturing is proposed. Summary of the Invention

[0003] The purpose of this invention is to solve the problems in the prior art by proposing an automatic positioning tool for semi-trailer manufacturing.

[0004] An automatic positioning fixture for semi-trailer manufacturing includes two moving devices, two pairs of ground rails, a frame body, and an installation unit. The two moving devices are respectively mounted on the two pairs of ground rails and are used to move and transport the frame body. The installation unit is installed between the two pairs of ground rails. Each moving device is equipped with a positioning mechanism for repositioning and flipping the frame body. Multiple support frames are also provided between the two pairs of ground rails for supporting the frame body before repositioning and flipping.

[0005] In the aforementioned automatic positioning fixture for semi-trailer manufacturing, each of the moving devices includes a housing and a first motor. The bottom of the housing is connected to two ground rail sliders, which are slidably connected to a pair of ground rails. The first motor is installed at the bottom of the housing, and the output shaft of the first motor extends to the outside of the housing and is coaxially connected to a first gear. A rack is installed on the bottom surface between the pair of ground rails, and the rack meshes with the first gear.

[0006] In the aforementioned automatic positioning fixture for semi-trailer manufacturing, the positioning mechanism includes a second motor and a third motor. A fixed ring is connected to one side of the outer wall of the housing. A rotating ring is rotatably connected to the fixed ring via a bearing. The second motor is mounted on the inner wall of the housing. The output shaft of the second motor extends into the rotating ring and is coaxially connected to a second gear. A gear ring is provided on the inner ring surface of the rotating ring. The second gear meshes with the gear ring. A rotating plate is connected to the rotating ring. Two symmetrically distributed first slide rails are provided on the rotating plate. A lifting plate is slidably connected to the two first slide rails. The third motor is mounted on one end of the rotating plate. A threaded rod is rotatably connected to the rotating plate and is coaxially connected to the output shaft of the third motor. A connecting block is installed on the back of the lifting plate and is threadedly connected to the threaded rod. A clamping element is installed on the front of the lifting plate.

[0007] In the aforementioned automatic positioning fixture for semi-trailer manufacturing, the clamping element includes an upper clamping plate and a cylinder. Two symmetrically distributed second slide rails are connected to the front of the lifting plate. The upper clamping plate is slidably connected to the second slide rails. The cylinder is installed at the upper end of the lifting plate, and its movable rod is fixedly connected to the upper clamping plate. Lower clamping plates perpendicular to each other are installed at the lower end of the lifting plate. A movable plate is rotatably connected to the bottom of the upper clamping plate. A first rotating groove is formed on the upper clamping plate. A pair of moving grooves are formed on the two side walls of the first rotating groove. Magnetic moving blocks are slidably connected within the moving grooves. Two moving blocks are rotatably connected to a rotating rod via pins. A second rotating groove is formed on the movable plate. The end of the rotating rod away from the moving block is rotatably connected to the two side walls of the second rotating groove via pins. An electromagnet is embedded within the upper clamping plate.

[0008] In the aforementioned automatic positioning fixture for semi-trailer manufacturing, the installation unit includes a high mounting platform and a low mounting platform, with multiple pairs of positioning blocks installed on the high and low mounting platforms, and auxiliary stair frames provided on both sides of the high and low mounting platforms.

[0009] In the aforementioned automatic positioning fixture for semi-trailer manufacturing, protective pads are provided on the platform of the high mounting platform and on some of the positioning blocks. The protective pads are made of sponge material.

[0010] In the aforementioned automatic positioning fixture for semi-trailer manufacturing, multiple limiting blocks are provided on the clamping surface of the lower clamping plate.

[0011] Compared with existing technologies, the advantages of this invention are:

[0012] 1. This invention uses a moving device, a displacement mechanism, and a clamping unit to automatically perform a series of actions such as clamping, lifting, flipping, and placing the chassis, reducing manual contact, improving production safety, and accurately placing the chassis onto the mounting table of the next process after flipping, thereby improving production cycle time and increasing efficiency.

[0013] 2. The present invention can set up clamping units according to the characteristics of the frame, which can not only accurately and efficiently clamp both ends of the frame, but also avoid the bumper to ensure clamping stability, further enhancing the stability and accuracy of frame lifting, flipping and placement. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the structure of the mobile device in this invention.

[0016] Figure 3 This is a cross-sectional view of the mobile device portion of the present invention.

[0017] Figure 4 This is a cross-sectional view of the chassis portion of the present invention.

[0018] Figure 5 This is a cross-sectional view of the upper clamping plate portion in this invention.

[0019] Figure 6 This is a schematic diagram of the structure of the vehicle frame body in this invention.

[0020] In the diagram: 1. Moving device, 10. Chassis, 11. Ground rail, 12. Ground rail slider, 13. First motor, 14. First gear, 15. Spur rack, 2. Positioning mechanism, 20. Second motor, 21. Fixed ring, 22. Rotating ring, 23. Second gear, 24. Rotating plate, 25. Third motor, 26. First slide rail, 261. Lifting plate, 262. Threaded rod, 263. Connecting block, 27. Second slide rail, 271. Upper clamping plate, 272. Movable plate, 273. First rotating groove, 274. Second rotating groove, 275. Moving groove, 276. Moving block, 277. Rotating rod, 278. Electromagnet, 28. Cylinder, 29. Lower clamping plate, 3. Frame body, 4. Installation unit, 41. High mounting platform, 42. Low mounting platform, 43. Positioning block, 44. Protective pad, 45. Auxiliary stair frame, 5. Support frame. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] Reference Figures 1-6As shown, an automatic positioning tooling for semi-trailer manufacturing includes two moving devices 1, two pairs of ground rails 11, a frame body 3, and an installation unit 4. The two moving devices 1 are respectively set on the two pairs of ground rails 11 and are used to move and transport the frame body 3. The installation unit 4 is installed between the two pairs of ground rails 11. Each moving device 1 is equipped with a positioning mechanism 2 for positioning and flipping the frame body 3. Multiple support frames 5 are also provided between the two pairs of ground rails 11 for placing and supporting the frame body 3 before positioning and flipping.

[0023] In this embodiment, each of the mobile devices includes a housing 10 and a first motor 13. The bottom of the housing 10 is connected to two ground rail sliders 12, which are slidably connected to a pair of ground rails 11. The first motor 13 is installed at the bottom of the housing 10. The output shaft of the first motor 13 extends to the outside of the housing 10 and is coaxially connected to a first gear 14. A rack 15 is installed on the bottom surface in the middle of the pair of ground rails 11, and the rack 15 meshes with the first gear 14.

[0024] In this embodiment, the displacement mechanism 2 includes a second motor 20 and a third motor 25. A fixed ring 21 is connected to one side of the outer wall of the housing 10. A rotating ring 22 is rotatably connected to the fixed ring 21 via a bearing. The second motor 20 is mounted on the inner wall of the housing 10. The output shaft of the second motor 20 extends into the rotating ring 22 and is coaxially connected to a second gear 23. A gear ring is provided on the inner ring surface of the rotating ring 22. The second gear 23 meshes with the gear ring. A [missing information - likely a component or component] is connected to the rotating ring 22. A rotating plate 24 is provided with two symmetrically distributed first slide rails 26. A lifting plate 261 is slidably connected to the two first slide rails 26. A third motor 25 is installed at one end of the rotating plate 24. A threaded rod 262 is rotatably connected to the rotating plate 24 and is coaxially connected to the output shaft of the third motor 25. A connecting block 263 is installed on the back of the lifting plate 261 and is threadedly connected to the threaded rod 262. A clamping element is installed on the front of the lifting plate 261.

[0025] In this embodiment, the clamping element includes an upper clamping plate 271 and a cylinder 28. Two symmetrically distributed second slide rails 27 are connected to the front of the lifting plate 261. The upper clamping plate 271 is slidably connected to the second slide rails 27. The cylinder 28 is installed at the upper end of the lifting plate 261, and the movable rod of the cylinder 28 is fixedly connected to the upper clamping plate 271. Lower clamping plates 29, perpendicular to each other, are installed at the lower end of the lifting plate 261. A movable plate 272 is rotatably connected to the bottom of the upper clamping plate 271. A first rotating groove 273 is formed on the upper clamping plate 271. The first rotating groove 273 has two sides... A pair of movable slots 275 are provided on the wall of the groove. A magnetic movable block 276 is slidably connected in the movable slot 275. The two movable blocks 276 are rotatably connected to a rotating rod 277 by a pin. A second rotating slot 274 is provided on the movable plate 272. The end of the rotating rod 277 away from the movable block 276 is rotatably connected to the two sides of the second rotating slot 274 by a pin. An electromagnet 278 is embedded in the upper clamping plate 271. The magnetism of the electromagnet 278 is controlled by changing the direction of the current, thereby generating a switching between magnetic attraction and magnetic repulsion on the movable block 276.

[0026] In this embodiment, the installation unit 4 includes a high installation platform 41 and a low installation platform 42. Multiple pairs of positioning blocks 43 are installed on the high installation platform 41 and the low installation platform 42. Auxiliary stair frames are provided on both sides of the high installation platform 41 and the low installation platform 42. Protective pads 44 are provided on the table surface of the high installation platform 41 and on some of the positioning blocks 43. The protective pads 44 are made of sponge material.

[0027] The lower clamping plate 29 has multiple limiting blocks on its clamping surface. The limiting blocks are bolted and detachable. The position of the limiting blocks can be adjusted according to different frame models to prevent the frame from sliding during flipping and improve flipping stability.

[0028] The working process and principle of this invention are as follows:

[0029] Before the frame body 3 is flipped, it is lifted by a crane onto the support frame 5. Before the moving device 1 moves, the lifting plate 261 is adjusted to the bottom position on the first slide rail 26, and the movable plate 272 in the clamping element is in a hanging state and flush with the upper clamping plate 271. Then, the first motor 13 is turned on to drive the first gear 14 to rotate, controlling the entire machine box 10 to slide on the ground rail, so that the two moving devices 1 move to the two ends of the frame body 3 respectively. Then, the third motor 25 is started to drive the threaded rod 262 to rotate, controlling the lifting plate to rise through the thread, so that the clamping surface of the lower clamping plate 29 contacts the bottom surfaces of both ends of the frame body 3. Then, the cylinder 28 is turned on to push the upper clamping plate 271 down. During this period, depending on the different structures at both ends of the frame, the control is adjusted. The switching current direction of the electromagnet 278 is different. For the front beam of the frame body 3, since there is no bumper to block it, the electromagnet 278 can switch the current earlier, and the magnetic repulsion force on the moving block 276 becomes magnetic attraction force, attracting the moving block 276 to slide upward in the moving groove 275. The movable plate 272 will flip upward under the pull of the rotating rod 277, perpendicular to the upper clamping plate 271. Under the push of the cylinder 28, it will contact the upper end surface of the front beam to complete the clamping. For the rear beam of the frame body 3, due to the presence of the bumper, the movable plate 272 needs to move downward in a hanging state. After the movable plate 272 passes the bumper, the electromagnet 278 is controlled to switch the current, so that the movable plate 272 completes the flipping to clamp the rear beam of the frame body 3.

[0030] After both ends of the frame body 3 are clamped, the third motor 25 is simultaneously activated to lift the frame body 3. After being lifted to a certain height, the second motor 20 in the two moving devices 1 is activated simultaneously. Through the meshing of the second gear 23 and the gear ring, the two rotating rings 22 rotate synchronously and in the same direction by 180°, completing the flipping of the frame body 3. Then, the first motor 13 in the two moving devices 1 is activated simultaneously to move the flipped frame body 3 horizontally to the position directly above the mounting unit 4. Afterwards, relying on the fine adjustments of the first motor 10 and the third motor 25, the frame body 3 is placed stably on the mounting platform for use in the next installation process. The second motor 20 and the third motor 25 in the displacement mechanism are controlled by an automatic program, making the flipping and displacement process more precise and synchronized, greatly improving production efficiency.

[0031] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or equivalent to the scope of this invention are included in this invention.

Claims

1. An automatic positioning fixture for semi-trailer manufacturing, characterized in that: It includes two moving devices (1), two pairs of ground rails (11), a frame body (3) and an installation unit (4). The two moving devices (1) are respectively set on the two pairs of ground rails (11) and are used to move and transport the frame body (3). The installation unit (4) is installed between the two pairs of ground rails (11). Each moving device (1) is equipped with a displacement mechanism (2) for displacing and flipping the frame body (3). Multiple support frames (5) are also provided between the two pairs of ground rails (11) for placing and supporting the frame body (3) before displacement and flipping. The mobile device includes a chassis (10), a fixed ring (21) is connected to one side of the outer wall of the chassis (10), a rotating ring (22) is rotatably connected to the fixed ring (21) through a bearing, a rotating plate (24) is connected to the rotating ring (22), two symmetrically distributed first slide rails (26) are provided on the rotating plate (24), a lifting plate (261) is slidably connected to the two first slide rails (26), and a clamping element is installed on the front of the lifting plate (261); The clamping element includes an upper clamping plate (271) and a cylinder (28). Two symmetrically distributed second slide rails (27) are connected to the front of the lifting plate (261). The upper clamping plate (271) is slidably connected to the second slide rails (27). The cylinder (28) is installed at the upper end of the lifting plate (261). The movable rod of the cylinder (28) is fixedly connected to the upper clamping plate (271). Lower clamping plates (29) perpendicular to each other are installed at the lower end of the lifting plate (261). A movable plate (272) is rotatably connected to the bottom of the upper clamping plate (271). An opening is provided on the upper clamping plate (271). There is a first rotating groove (273), and a pair of moving grooves (275) are provided on the two side walls of the first rotating groove (273). A magnetic moving block (276) is slidably connected in the moving groove (275). The two moving blocks (276) are rotatably connected to a rotating rod (277) by a pin. A second rotating groove (274) is provided on the movable plate (272). The end of the rotating rod (277) away from the moving block (276) is rotatably connected to the two side walls of the second rotating groove (274) by a pin. An electromagnet (278) is embedded in the upper clamping plate (271).

2. The automatic positioning fixture for semi-trailer manufacturing according to claim 1, characterized in that: Each of the moving devices also includes a first motor (13), and two ground rail sliders (12) are connected to the bottom of the housing (10). The two ground rail sliders (12) are slidably connected to a pair of ground rails (11). The first motor (13) is mounted on the bottom of the housing (10). The output shaft of the first motor (13) extends to the outside of the housing (10) and is coaxially connected to a first gear (14). A rack (15) is mounted on the bottom surface in the middle of the pair of ground rails (11). The rack (15) meshes with the first gear (14).

3. The automatic positioning fixture for semi-trailer manufacturing according to claim 2, characterized in that: The displacement mechanism (2) includes a second motor (20) and a third motor (25). The second motor (20) is installed on the inner wall of the housing (10). The output shaft of the second motor (20) extends into the rotating ring (22) and is coaxially connected to a second gear (23). A gear ring is provided on the inner ring surface of the rotating ring (22). The second gear (23) meshes with the gear ring. The third motor (25) is installed at one end of the rotating plate (24). A threaded rod (262) is rotatably connected to the rotating plate (24). The threaded rod (262) is coaxially connected to the output shaft of the third motor (25). A connecting block (263) is installed on the back of the lifting plate (261) and is threadedly connected to the threaded rod (262).

4. The automatic positioning fixture for semi-trailer manufacturing according to claim 1, characterized in that: The installation unit (4) includes a high installation platform (41) and a low installation platform (42). Multiple pairs of positioning blocks (43) are installed on the high installation platform (41) and the low installation platform (42). Auxiliary stair frames are provided on both sides of the high installation platform (41) and the low installation platform (42).

5. The automatic positioning fixture for semi-trailer manufacturing according to claim 4, characterized in that: The high mounting platform (41) has protective pads (44) on its surface and on some of the positioning blocks (43), and the protective pads (44) are made of sponge material.

6. The automatic positioning fixture for semi-trailer manufacturing according to claim 1, characterized in that: Multiple limiting blocks are provided on the clamping surface of the lower clamping plate (29).

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