Suspension conveyor for electrophoretic coating of new energy vehicles

Abstract

The present invention relates to the technical field of coating conveying equipment, and discloses a suspension conveying device for electrophoretic coating of new energy vehicles, including: a conveyor chain track, the conveyor chain track is arranged as two parallel tracks; a suspension frame, the suspension frame is connected to the bottom of the conveyor chain track and moves along the coating line direction; a swing mechanism, the swing mechanism is connected to the bottom of the suspension frame, and is used to drive the vehicle body to swing at a preset frequency; a vehicle body tooling, the vehicle body tooling is detachably connected between the swing mechanisms of the two conveyor chain tracks, and the vehicle body tooling is used to carry the vehicle body to be painted. The present invention adopts a double-track suspension conveying method, suspends the vehicle body tooling between the two conveyor chain tracks, and fully soaks it in the paint; drives the vehicle body to swing back and forth at a preset frequency, improves the uniformity of the contact between the vehicle body and the paint, helps to eliminate bubbles attached to the vehicle body, improves the coating effect, reduces the coating bubble points, solves the problem of uneven product coating when using suspension conveying, and improves the controllability of the coating process.

Description

Technical Field

[0001] The present invention relates to the technical field of coating conveying equipment, and more specifically, to a suspension conveying device for electrophoretic coating of new energy vehicles. Background Art

[0002] Electrophoretic coating is a process of metal coating. Its principle is to use water-soluble paint to treat the workpiece to be coated by tank immersion method, and use an external electric field to make the pigment and resin particles suspended in the electrophoretic liquid migrate and deposit on the surface of the workpiece to be coated as one of the electrodes. The hanging conveyor device for electrophoretic coating usually adopts a hanging conveyor chain combined with a track and a transmission chain. The hook is hung on the track to hang the workpiece to be coated and energized. As the conveyor chain moves, the workpiece to be coated is immersed in the electrophoretic tank and contacts the coating before coating.

[0003] In the prior art, such as the utility model patent with application number CN202220691043.9, a heavy-duty suspended conveyor chain track for painting is disclosed, including a support frame, a conveyor chain track body, a conveyor chain assembly, a suspension assembly, a roller, a drive assembly and a protective brake mechanism. The conveyor chain track body is fixed to the upper ends of two support frames, the conveyor chain assembly is installed on the outside of the conveyor chain track body, and the outside of the conveyor chain assembly is equidistantly installed with suspension assemblies, and one side of the suspension assembly is rotatably connected to a roller through an axle pin.

[0004] This device suspends the workpiece to be painted through the suspension component and moves it in the electrophoretic tank. The body remains unchanged or changes slightly in the paint. When applied to the painting of new energy vehicles, new energy vehicles have higher requirements for body streamline and body size, and the body structure is more complex than traditional vehicles. The above suspension immersion process has the problem that the paint cannot fully contact the body structure, which can easily lead to uneven body painting and affect the quality of new energy vehicle products.

[0005] Therefore, it is necessary to propose a suspension conveying device for electrophoretic coating of new energy vehicles to at least partially solve the problems existing in the prior art. Summary of the invention

[0006] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0007] In order to at least partially solve the above problems, the present invention provides a suspension conveying device for electrophoretic coating of new energy vehicles, comprising:

[0008] Conveyor chain tracks, the conveyor chain tracks are arranged into two parallel tracks;

[0009] A suspension frame, which is connected under the conveyor chain track and moves along the coating line direction;

[0010] A swing mechanism, which is connected to the bottom end of the suspension frame and is used to drive the vehicle body to swing at a preset frequency;

[0011] The body tooling is detachably connected between the swing mechanisms of the two conveyor chain tracks, and is used to carry the body to be painted.

[0012] Preferably, the suspension bracket comprises:

[0013] An upper suspension plate, which is connected to the bottom end of the conveyor chain track and moves along the coating line direction;

[0014] The lower suspension plate is L-shaped, the bottom of the lower suspension plate is connected to the bottom end of the upper suspension plate through a supporting component, and the swing mechanism is connected to the side of the lower suspension plate.

[0015] Preferably, two guide wheels are connected to the top of the upper suspension plate, a guide slide rail is arranged below the conveying track, and the two guide wheels are symmetrically arranged on both sides of the guide slide rail and roll along the guide slide rail.

[0016] Preferably, the support assembly comprises:

[0017] Upper support plates, two upper support plates are symmetrically connected to the front and rear sides of the upper suspension plate;

[0018] The top ends of the two lower support plates are respectively connected to the inner sides of the two upper support plates, and the bottom ends of the two lower support plates are respectively connected to the outer sides of the lower suspension plates;

[0019] A limit rod, the limit rod passes through the lower support plate and is slidably connected to the horizontal sliding grooves on the front and rear sides of the lower suspension plate;

[0020] A support rod, the top end of the support rod is hinged to the upper suspension plate, and the bottom end of the support rod is hinged in the oblique sliding groove of the lower support plate.

[0021] Preferably, a clamping rod is connected between the two upper support plates, and two clamping rods are arranged in parallel. A plurality of arc-shaped clamping grooves are arranged on the top of the oblique slide groove of the lower support plate, and the clamping rods are embedded in the arc-shaped clamping grooves.

[0022] Preferably, a protrusion is provided at the bottom end of the limiting rod, and the protrusion is limitedly connected in the horizontal slide groove; a compression spring is sleeved on the limiting rod, and the two ends of the compression spring are respectively abutted against the limiting rod end plate and the lower support plate.

[0023] Preferably, an electric telescopic rod is connected to the side of the lower suspension plate, and the output rod of the electric telescopic rod is connected to the inner side of the lower support plate through a pull rod.

[0024] Preferably, the swing mechanism comprises:

[0025] A rotating shaft, the rotating shaft is rotatably connected to the side of the lower suspension plate, and the rotating shaft is connected to the output end of the driving motor;

[0026] A transmission sleeve, which is connected to the rotating shaft and arranged close to the body tooling, and is provided with a clamping claw assembly for clamping the rotating shaft of the body tooling;

[0027] The electromagnetic ring is connected to the lower suspension plate and is concentrically arranged with the transmission sleeve.

[0028] Preferably, the clamping jaw assembly comprises:

[0029] Magnetic slip ring, which is slidably connected to the outer wall of the transmission sleeve. When the electromagnetic ring is energized, it generates attraction to the magnetic slip ring;

[0030] A clamping arm, wherein a first end of the clamping arm is hinged to the magnetic slip ring, and a second end of the clamping arm passes through a slot on the transmission sleeve and enters the interior of the transmission sleeve;

[0031] A clamping jaw, wherein the first end of the clamping jaw is hinged to the second end of the clamping arm, the middle portion of the clamping jaw is rotatably connected to the slot, the second end of the clamping jaw extends outwardly from the transmission sleeve, and the second end of the clamping jaw is connected to a latching tooth;

[0032] A plurality of clamping grooves are evenly arranged at the end of the rotating shaft of the vehicle body tooling along the circumferential direction, and the clamping teeth are clamped in the clamping grooves.

[0033] Preferably, two limit rings are coaxially connected to the transmission sleeve to limit the sliding range of the magnetic slip ring.

[0034] Preferably, the swing mechanism is provided with an automatic positioning component, and the automatic positioning component comprises:

[0035] A sealing seat, the sealing seat is connected to the inner wall of the transmission sleeve, and the sealing seat is provided with a first cavity located in the center and a plurality of second cavities arranged around the first cavity;

[0036] The first piston is slidably connected in the first cavity, the first piston rod is connected to the center of the first piston and penetrates the sealing seat, one end of the first piston rod is slidably connected to the inner hole of the shaft, and the other end is connected to the positioning hole at the end of the shaft of the vehicle body tooling, and a spring is connected between the first piston and the inner wall of the transmission sleeve; the end of the first piston rod and the inner wall of the positioning hole are both provided with a conical surface;

[0037] A second piston, the second piston is slidably connected in the second cavity, a second piston rod is connected to the center of the second piston, and one end of the second piston rod passes through the sealing seat;

[0038] A pressure plate is arranged at one end of the sealing seat close to the body tooling rotating shaft, the pressure plate is connected to the second piston rod, the first piston rod passes through the pressure plate, and a spring is connected between the pressure plate and the end of the sealing seat; the pressure plate is located on the side of the clamp arm away from the body tooling rotating shaft.

[0039] Compared with the prior art, the present invention has at least the following beneficial effects:

[0040] The suspension conveying device for electrophoretic coating of new energy vehicles provided by the present invention adopts a double-track suspension conveying method, and the body tooling is suspended between two conveyor chain tracks so that it is fully immersed in the paint during painting; and a swing mechanism is provided to drive the body to swing back and forth at a preset frequency, thereby improving the uniformity of contact between the body and the paint, helping to eliminate bubbles attached to the body, improving the coating effect, reducing the number of coating bubble points, solving the problem of uneven product coating when using suspension conveying, and improving the controllability of the coating process.

[0041] The other advantages, objectives and features of the suspension conveying device for electrophoretic coating of new energy vehicles described in the present invention will be partially reflected through the following description, and will also be partially understood by technicians in this field through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0043] Figure 1 It is a structural schematic diagram of the present invention;

[0044] Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0045] Figure 3 It is a structural schematic diagram of the suspension frame in the present invention;

[0046] Figure 4 It is a structural schematic diagram of the upper part of the suspension frame in the present invention;

[0047] Figure 5 It is a structural schematic diagram of the limiting rod in the present invention;

[0048] Figure 6 It is a schematic cross-sectional structure diagram of the swing mechanism in the present invention;

[0049] Figure 7 It is a structural schematic diagram of the swing mechanism in the present invention;

[0050] Figure 8 It is a structural schematic diagram of the swing mechanism in the present invention (the transmission sleeve is not shown);

[0051] Fig. 9 It is a schematic diagram of the cross-sectional structure of the automatic positioning component in the present invention.

[0052] In the figure: 1. conveyor chain track; 2. suspension frame; 3. swing mechanism; 4. body tooling; 5. body; 6. guide rail; 11. upper suspension plate; 12. lower suspension plate; 13. guide wheel; 14. upper support plate; 15. lower support plate; 16. limit rod; 17. support rod; 18. oblique slide; 19. clamping rod; 20. horizontal slide; 21. arc clamping groove; 22. bump; 23. compression spring; 24. electric telescopic rod; 25. Pull rod; 30. Drive motor; 31. Rotating shaft; 32. Transmission sleeve; 33. Vehicle body tooling rotating shaft; 34. Electromagnetic ring; 35. Magnetic slip ring; 36. Clamp arm; 37. Slot; 38. Clamp claw; 39. Gear; 40. Slot; 41. Sealing seat; 42. First cavity; 43. Second cavity; 44. First piston; 45. First piston rod; 46. Positioning hole; 47. Second piston; 48. Second piston rod; 49. Pressure plate. DETAILED DESCRIPTION

[0053] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0054] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0055] Embodiment 1:

[0056] like Figure 1 As shown, the present invention provides a suspension conveying device for electrophoretic coating of new energy vehicles, comprising:

[0057] Conveyor chain track 1, the conveyor chain track 1 is arranged into two parallel tracks;

[0058] A suspension frame 2, which is connected to the lower part of the conveyor chain track 1 and moves along the coating line direction;

[0059] A swing mechanism 3, which is connected to the bottom end of the suspension frame 2 and is used to drive the vehicle body 5 to swing at a preset frequency;

[0060] The vehicle body tooling 4 is detachably connected between the swing mechanisms 3 of the two conveyor chain tracks 1 , and the vehicle body tooling 4 is used to carry the vehicle body 5 to be painted.

[0061] The working principle and beneficial effects of the above technical solution are:

[0062] The suspension conveying device used for electrophoretic coating of new energy vehicles has a conveyor chain track 1 arranged above the electrophoretic tank, and the conveyor chain track 1 extends along the coating direction. The chain of the conveyor chain track 1 is connected to the suspension frame 2 below, driving the suspension frame 2 and the components below to move synchronously. During electrophoretic coating, the body 5 to be coated is fixed on the body tooling 4, and then the body tooling 4 is connected to the swing mechanism 3. During the coating process, the suspension frame 2 drives the body tooling 4 to move, so that the body 5 can be completely immersed in the electrophoretic tank, and the body 5 is coated. At the same time, the swing mechanism 3 is started to drive the body 5 to swing back and forth at a preset frequency, so that the body 5 is fully in contact with the paint in the electrophoretic tank. Protective covers are set on the suspension frame 2 and the swing mechanism 3 to prevent paint splashing.

[0063] Through the above-mentioned structural design, a suspension conveying device for electrophoretic coating of new energy vehicles is provided, which adopts a double-track suspension conveying method, and the body tooling 4 is suspended between two conveyor chain tracks 1, so that it is fully immersed in the paint during painting; and a swing mechanism 3 is provided to drive the body 5 to swing back and forth at a preset frequency, so as to improve the uniformity of contact between the body 5 and the paint, help eliminate bubbles attached to the body 5, improve the coating effect, reduce the coating bubble points, solve the problem of uneven product coating when using suspension conveying, and improve the controllability of the coating process.

[0064] Embodiment 2:

[0065] like Figure 1-4 As shown, based on the above embodiment 1, the suspension bracket 2 includes:

[0066] An upper suspension plate 11, which is connected to the bottom end of the conveyor chain track 1 and moves along the coating line direction;

[0067] The lower suspension plate 12 is L-shaped, the bottom of the lower suspension plate 12 is connected to the bottom end of the upper suspension plate 11 through a supporting assembly, and the swing mechanism 3 is connected to the side of the lower suspension plate 12.

[0068] Two guide wheels 13 are connected to the top of the upper suspension plate 11 , a guide rail 6 is arranged below the conveying track 1 , and the two guide wheels 13 are symmetrically arranged on both sides of the guide rail 6 and roll along the guide rail 6 .

[0069] The working principle and beneficial effects of the above technical solution are:

[0070] The suspension frame 2 adopts a split design, and is formed by splicing an upper suspension plate 11, a lower suspension plate 12 and a supporting component, which can reduce the weight of the structure while ensuring the stability of the structure.

[0071] Two guide wheels 13 are arranged at the top of the upper suspension plate 11 . When the upper suspension plate 11 moves driven by the chain, the guide wheels 13 roll along the two sides of the guide rails 6 to guide the upper suspension plate 11 .

[0072] Embodiment 3:

[0073] like Figure 3 , 4 As shown, based on the above embodiment 2, the support assembly includes:

[0074] Upper support plates 14, two upper support plates 14 are symmetrically connected to the front and rear sides of the upper suspension plate 11;

[0075] The top ends of the two lower support plates 15 are respectively connected to the inner sides of the two upper support plates 14, and the bottom ends of the two lower support plates 15 are respectively connected to the outer sides of the lower suspension plate 12;

[0076] A limit rod 16, the limit rod 16 passes through the lower support plate 15 and is slidably connected to the horizontal slide grooves 20 on the front and rear sides of the lower suspension plate 12;

[0077] The support rod 17 has a top end hinged to the upper suspension plate 14 , and a bottom end hinged to the oblique slide groove 18 of the lower support plate 15 .

[0078] A clamping rod 19 is connected between the two upper support plates 14 . Two clamping rods 19 are arranged in parallel. A plurality of arc-shaped clamping grooves 21 are arranged on the top of the oblique slide groove 18 of the lower support plate 15 . The clamping rods 19 are embedded in the arc-shaped clamping grooves 21 .

[0079] The working principle and beneficial effects of the above technical solution are:

[0080] When installing the support assembly, install the limit rod 16 in the horizontal slide groove 20 of the lower suspension plate 12, so that the bottom end of the lower support plate 15 can slide along the horizontal slide groove 20; adjust the angle of the lower support plate 15 to the preset position, and the bottom end of the support rod 17 slides along the oblique slide groove 18 of the lower support plate 15, so the support rod 17 has a certain limiting effect on the lower support plate 15; make the arc-shaped groove 21 of the lower support plate 15 correspond to the clamping rod 19 on the upper support plate 14, and the clamping rod 19 is embedded in the arc-shaped groove 21; because the clamping rod 19 is set as two parallel ones, the arc-shaped groove 21 and the clamping rod 18 can be stably connected.

[0081] Through the above-mentioned structural design, the two support plates can be combined, and the connection position between the lower support plate 15 and the upper support plate 14 can be adjusted according to the angle of the lower support plate 15, so that the support assembly is adjusted to a suitable posture and the structure is kept stable. The support rod 17 is arranged between the lower support plate 15 and the upper support plate 14, which can provide auxiliary support to the lower part of the structure.

[0082] Embodiment 4:

[0083] like Figure 5As shown, on the basis of the above-mentioned embodiment 3, a protrusion 22 is provided at the bottom end of the limiting rod 16, and the protrusion 22 is limitedly connected in the horizontal slide groove 20; a compression spring 23 is sleeved on the limiting rod 16, and the two ends of the compression spring 23 are respectively abutted against the end plate of the limiting rod 16 and the lower support plate 15.

[0084] The working principle and beneficial effects of the above technical solution are:

[0085] When the limiting rod 16 is used, the bottom end of the limiting rod 16 is installed in the horizontal slide groove 20, and the protrusion 22 is connected with the horizontal slide groove 20 to maintain the stability of the sliding process of the limiting rod 16. A compression spring 23 is arranged on the limiting rod 16, and the compression spring 23 applies pressure to the lower support plate 15, so that the lower support plate 15 is closely attached to the lower suspension plate 12, thereby reducing the installation gap and improving the structural stability.

[0086] Embodiment 5:

[0087] like Figure 3 As shown, on the basis of the above-mentioned embodiment 3, an electric telescopic rod 24 is connected to the side of the lower suspension plate 12, and the output rod of the electric telescopic rod 24 is connected to the inner side of the lower support plate 15 through a pull rod 25.

[0088] The working principle and beneficial effects of the above technical solution are:

[0089] An electric telescopic rod 24 is provided on the lower suspension plate 12. When the position of the lower suspension plate 12 needs to be adjusted, the electric telescopic rod 24 is started to extend, and one end of the pull rod 25 provided on the electric telescopic rod 24 is fixed to the lower support plate 15, so that the other end of the electric telescopic rod 24 moves horizontally and approaches the center of the suspension conveying device, so that the lower suspension plates 12 under the two suspension frames 2 are close to each other, that is, they can adapt to the body tooling 4 with a smaller width. On the contrary, when the electric telescopic rod 24 is started to be retracted, the two lower suspension plates 12 are separated from each other, so that they can adapt to the body tooling 4 with a larger width. When the electric telescopic rod 24 is extended or retracted, it drives the lower support plate 15 to rotate synchronously, so that the card slot 21 and the card rod 18 at the top of the lower support plate 15 rotate slightly.

[0090] Through the above structural design, on the one hand, the widths of the bodies 5 of new energy vehicles of different models are different. When performing electrophoretic coating, in order to ensure the stability of the tooling movement and reduce material waste, it is necessary to use body tooling 4 of different widths. By adjusting the connection position of the lower support plate 15 and the upper support plate 14 and the electric telescopic rod 24, the spacing between the two lower suspension plates 12 can be changed to adapt to the installation of body tooling 4 of different widths. On the other hand, the body tooling 4 and the swing mechanism 3 are detachably arranged. Through the design of the electric telescopic rod 24, the position of the swing mechanism 3 can be adjusted by adjusting the extension length of the electric telescopic rod 24 after installation, thereby reducing the installation gap between the swing mechanism 3 and the body tooling 4, and the stability is higher; after the current body 5 is painted, the body tooling 4 can be moved to the next station and disassembled as a whole, reducing the waiting time between processes.

[0091] Embodiment 6:

[0092] like Figure 6-8 As shown, based on the above-mentioned embodiment 2, the swing mechanism 3 includes:

[0093] A rotating shaft 31, the rotating shaft 31 is rotatably connected to the side of the lower suspension plate 12, the rotating shaft 31 is connected to the output end of the driving motor 30, and the driving motor 30 is installed on the lower suspension plate 12;

[0094] A transmission sleeve 32, which is connected to the rotating shaft 31 and arranged close to the body tooling 4, and a clamping claw assembly for clamping the body tooling rotating shaft 33 is provided on the transmission sleeve 32;

[0095] The electromagnetic ring 34 is connected to the lower suspension plate 12 and is concentrically arranged with the transmission sleeve 32 .

[0096] The jaw assembly includes:

[0097] A magnetic slip ring 35, which is slidably connected to the outer wall of the transmission sleeve 32, and the electromagnetic ring 34 generates an attractive force on the magnetic slip ring 35 when energized;

[0098] A clamping arm 36, wherein a first end of the clamping arm 36 is hinged to the magnetic slip ring 35, and a second end of the clamping arm 36 passes through a slot 37 on the transmission sleeve 32 and enters the interior of the transmission sleeve 32;

[0099] A clamping jaw 38, wherein the first end of the clamping jaw 38 is hinged to the second end of the clamping arm 36, the middle portion of the clamping jaw 38 is rotatably connected to the slot 37, the second end of the clamping jaw 38 extends outwardly from the transmission sleeve 32, and the second end of the clamping jaw 38 is connected to a latching tooth 39;

[0100] A plurality of slots 40 are evenly arranged at the end of the vehicle body tooling shaft 33 along the circumferential direction, and the latching teeth 39 are latched in the slots 40 .

[0101] Two limit rings are coaxially connected to the transmission sleeve 32 to limit the sliding range of the magnetic slip ring 35 .

[0102] The working principle and beneficial effects of the above technical solution are:

[0103] When the swing mechanism 3 is installed with the body tooling 4, the body tooling shaft 33 is aligned with the center of the transmission sleeve 32; the electromagnetic ring 34 is energized so that the electromagnetic ring 34 generates an attraction force on the magnetic slip ring 35, driving the magnetic slip ring 35 to slide along the outer wall of the transmission sleeve 32 and away from the body tooling shaft 33; the magnetic slip ring 35 drives one end of the clamp arm 36 to move, so that the clamp arm 36 rotates, and then drives the clamping claw 38 to rotate relative to the slot 37, that is, the multiple claws 38 have a tendency to converge toward the center, and one end of the clamping claw 38 with a clamping tooth 39 moves into the clamping groove 40 of the body tooling shaft 33 and is clamped in the clamping groove 40, and the clamping claw 39 limits and clamps the body tooling shaft 33, so that the body tooling shaft 33 can move synchronously with the transmission sleeve 32.

[0104] When the swing mechanism 3 swings the body tooling 4, the drive motor 30 is started, and the output shaft of the drive motor 30 is connected to the rotating shaft 31 through the transmission component, driving the rotating shaft 31 to move; the transmission component can be set to any one or more combinations of transmission modes such as belt drive, chain drive, gear drive, etc. The rotation of the rotating shaft 31 drives the rotation of the transmission sleeve 32, and then drives the rotation of the body tooling shaft 33, so that the body 3 can swing at a preset frequency and amplitude to fully contact with the paint.

[0105] When the vehicle body tooling 4 moves to the next station after painting, the electromagnetic ring 24 is powered off, and the magnetic slip ring 35 is reversely slid and reset under the action of the elastic member, and the claw 38 is driven to rotate in the reverse direction and move out of the slot 40, so that the vehicle body tooling shaft 33 is released.

[0106] Through the above structural design, the clamping claw assembly controlled by electromagnetic clutch is adopted to realize the rapid clamping and fixing of the body tooling 4, which is convenient for coupling and disassembly of the body tooling 4 and the rotating shaft 31, and the installation is stable and reliable with high control accuracy; the cooperation of multiple clamping claws 38 and the clamping groove 40 is adopted to limit the circumferential direction after clamping, so that the body tooling rotating shaft 33 and the rotating shaft 31 are coupled with each other. Compared with the existing clamping method relying on friction force, it is more reliable.

[0107] Embodiment 7:

[0108] like Figure 6-9 As shown, on the basis of the above-mentioned embodiment 6, an automatic positioning component is provided on the swing mechanism 3, and the automatic positioning component includes:

[0109] A sealing seat 41, the sealing seat 41 is connected to the inner wall of the transmission sleeve 32, and the sealing seat 41 is provided with a first cavity 42 located in the center and a plurality of second cavities 43 arranged around the first cavity 42;

[0110] The first piston 44 is slidably connected in the first cavity 42. The first piston rod 45 is connected to the center of the first piston 44 and penetrates the sealing seat 41. One end of the first piston rod 45 is slidably connected to the inner hole of the rotating shaft 31, and the other end is connected to the positioning hole 46 at the end of the vehicle body tooling rotating shaft 33. A spring is connected between the first piston 33 and the inner wall of the transmission sleeve 32; the end of the first piston rod 45 and the inner wall of the positioning hole 46 are both provided with a conical surface;

[0111] A second piston 47, the second piston 47 is slidably connected in the second cavity 43, a second piston rod 48 is connected to the center of the second piston 47, and one end of the second piston rod 48 passes through the sealing seat 41;

[0112] The pressure plate 49 is arranged at one end of the sealing seat 41 close to the body tooling shaft 33. The pressure plate 49 is connected to the second piston rod 46. The first piston rod 45 passes through the pressure plate 49. A spring is connected between the pressure plate 49 and the end of the sealing seat 41. The pressure plate 48 is located on the side of the clamp arm 36 away from the body tooling shaft 33.

[0113] The working principle and beneficial effects of the above technical solution are:

[0114] When there is a deviation between the body tooling shaft 33 and the center of the transmission sleeve 32, the degree of engagement between the clamping claws 38 and the locking teeth 39 at different positions is inconsistent, which will affect the installation stability of the body tooling 4 and the balance of torque transmission, so an automatic positioning component is set. When the electromagnetic ring 34 is energized and drives the magnetic slip ring 35 to slide along the outer wall of the transmission sleeve 32, the clamping arm 36 rotates and applies pressure to the pressure plate 48, causing the pressure plate 48 to move toward the side close to the sealing seat 41, and the pressure plate 48 drives the second piston rod 46 to move into the second cavity 43. The first cavity 42 and the second cavity 43 are connected, thereby squeezing the gas in the second cavity 43 into the first cavity 42, increasing the air pressure in the first cavity 42, and pushing the first piston 44 to drive the first piston rod 45 to move toward the direction close to the body tooling shaft 33. The first piston rod 45 is close to the positioning hole 46, and the conical surface of the first piston rod 45 slides relative to the conical surface of the inner wall of the positioning hole 46, thereby positioning the body tooling shaft 33 to a position concentric with the transmission sleeve 32. When the clamp arm 36 rotates and applies pressure to the pressure plate 48 , the pressure plate 48 squeezes the spring and stores energy therein. When the vehicle body tooling 4 is disassembled, the electromagnetic ring 34 is powered off, and the spring assists in quickly resetting the pressure plate 48 and the clamp arm 36 .

[0115] Through the above-mentioned structural design, when the body tooling shaft 33 is clamped, the body tooling shaft 33 can be automatically positioned to a position concentric with the transmission sleeve 32, so that the degree of engagement between the clamping claws 38 and the latch teeth 39 at each position remains consistent. When the shaft 31 rotates, the torque is evenly transmitted to the body tooling shaft 33 through the latch teeth 39, thereby reducing the bending of the body tooling shaft 33 and the imbalance of the body tooling 4, thereby extending the service life of the body tooling shaft 33.

[0116] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0117] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0118] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A suspension conveying device for electrophoretic coating of new energy vehicles, characterized in that: include: A conveyor chain track (1), wherein the conveyor chain track (1) is arranged into two parallel tracks; A suspension frame (2), the suspension frame (2) is connected to the bottom of the conveyor chain track (1) and moves along the coating line direction; A swing mechanism (3), the swing mechanism (3) is connected to the bottom end of the suspension frame (2) and is used to drive the vehicle body (5) to swing at a preset frequency; A vehicle body tooling (4), the vehicle body tooling (4) being detachably connected between the swing mechanisms (3) of the two conveyor chain tracks (1), and the vehicle body tooling (4) being used to carry a vehicle body (5) to be painted; The suspension bracket (2) comprises: An upper suspension plate (11), the upper suspension plate (11) is connected to the bottom end of the conveyor chain track (1) and moves along the coating line direction; A lower suspension plate (12), the lower suspension plate (12) is arranged in an L shape, the bottom of the lower suspension plate (12) is connected to the bottom end of the upper suspension plate (11) through a supporting assembly, and the swing mechanism (3) is connected to the side of the lower suspension plate (12); The swing mechanism (3) comprises: A rotating shaft (31), the rotating shaft (31) is rotatably connected to the side of the lower suspension plate (12), and the rotating shaft (31) is connected to the output end of the driving motor (30); A transmission sleeve (32), the transmission sleeve (32) is connected to the rotating shaft (31) and arranged close to the vehicle body tooling (4), and a clamping claw assembly for clamping the vehicle body tooling rotating shaft (33) is provided on the transmission sleeve (32); An electromagnetic ring (34), the electromagnetic ring (34) is connected to the lower suspension plate (12) and is arranged concentrically with the transmission sleeve (32); The jaw assembly includes: A magnetic slip ring (35), wherein the magnetic slip ring (35) is slidably connected to the outer wall of the transmission sleeve (32), and when the electromagnetic ring (34) is energized, an attractive force is generated on the magnetic slip ring (35); A clamping arm (36), wherein a first end of the clamping arm (36) is hinged to the magnetic slip ring (35), and a second end of the clamping arm (36) passes through a slot (37) on the transmission sleeve (32) and enters the interior of the transmission sleeve (32); A clamping jaw (38), wherein a first end of the clamping jaw (38) is hingedly connected to a second end of the clamping arm (36), a middle portion of the clamping jaw (38) is rotatably connected to the slot (37), a second end of the clamping jaw (38) extends outwardly from the transmission sleeve (32), and a latching tooth (39) is connected to the second end of the clamping jaw (38); A plurality of slots (40) are evenly arranged at the end of the vehicle body tooling rotating shaft (33) along the circumferential direction, and the latching teeth (39) are latched in the slots (40); Two limiting rings are coaxially connected to the transmission sleeve (32) and are used to limit the sliding range of the magnetic slip ring (35).

2. The suspension conveying device for electrophoretic coating of new energy vehicles according to claim 1 is characterized in that: Two guide wheels (13) are connected to the top of the upper suspension plate (11), a guide rail (6) is arranged below the conveying track (1), and the two guide wheels (13) are symmetrically arranged on both sides of the guide rail (6) and roll along the guide rail (6).

3. The suspension conveying device for electrophoretic coating of new energy vehicles according to claim 1 is characterized in that: The support components include: Upper support plates (14), two upper support plates (14) are symmetrically connected to the front and rear sides of the upper suspension plate (11); Lower support plates (15), the top ends of the two lower support plates (15) are respectively connected to the inner sides of the two upper support plates (14), and the bottom ends of the two lower support plates (15) are respectively connected to the outer sides of the lower suspension plates (12); A limit rod (16), the limit rod (16) passes through the lower support plate (15) and is slidably connected to the horizontal slide grooves (20) on the front and rear sides of the lower suspension plate (12); A support rod (17), the top end of the support rod (17) is hinged to the upper suspension plate (14), and the bottom end of the support rod (17) is hinged in the oblique slide groove (18) of the lower support plate (15).

4. The suspension conveying device for electrophoretic coating of new energy vehicles according to claim 3 is characterized in that: A clamping rod (19) is connected between the two upper support plates (14), and two clamping rods (19) are arranged in parallel. A plurality of arc-shaped clamping grooves (21) are arranged on the top of the oblique sliding groove (18) of the lower support plate (15), and the clamping rod (19) is embedded in the arc-shaped clamping grooves (21).

5. The suspension conveying device for electrophoretic coating of new energy vehicles according to claim 3 is characterized in that: A protrusion (22) is arranged at the bottom end of the limiting rod (16), and the protrusion (22) is limitedly connected in the horizontal slide groove (20); a compression spring (23) is sleeved on the limiting rod (16), and two ends of the compression spring (23) are respectively in contact with the end plate of the limiting rod (16) and the lower support plate (15).

6. The suspension conveying device for electrophoretic coating of new energy vehicles according to claim 3 is characterized in that: An electric telescopic rod (24) is connected to the side of the lower suspension plate (12), and an output rod of the electric telescopic rod (24) is connected to the inner side of the lower support plate (15) through a pull rod (25).

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