A hanging conveying device for electroplating treatment of automobile workpiece surface

Abstract

The present application relates to the technical field of automobile workpiece conveying, in particular to a suspension conveying device for electroplating treatment of automobile workpiece surface, comprising a gantry conveyor, the gantry conveyor comprising a gantry conveying frame, a suspension unit is installed on the gantry conveying frame, a damping unit is installed on the suspension unit, and a vibration unit is also installed on the suspension unit; the present application is used for suspension conveying of automobile workpieces, so that the swinging lifting appliance can quickly recover to a stationary state, thereby increasing the electroplating efficiency of automobile workpieces, meanwhile, the present application reduces the residual amount of treatment liquid by reciprocating rotation of the lifting appliance and vibration of the lifting appliance, ensures the electroplating quality of automobile workpieces, and the lower end of the lifting appliance can periodically deflect backward by a certain angle, thereby when electroplating treatment is performed on workpieces with complex shapes or recesses, the inclined posture of the lifting appliance can ensure that the residual treatment liquid can be completely drained, thereby further ensuring the electroplating quality of automobile workpieces.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile workpiece conveying, in particular to a suspension conveying device for surface electroplating treatment of automobile workpieces. BACKGROUND

[0002] Surface electroplating treatment of automobile workpieces is an important process for improving the corrosion resistance, wear resistance and aesthetics of parts, and is widely used in electroplating processing of small and medium-sized workpieces such as fasteners, connectors, small brackets and sensor housings. The electroplating process includes oil removal, pickling, electroplating, washing and drying, etc. During the electroplating process of automobile workpieces, the automobile workpieces need to be sequentially immersed in different treatment liquid tanks through a suspension conveying device to complete the electroplating treatment of the surface of the automobile workpieces.

[0003] The existing suspension conveying device usually uses a gantry type suspension conveyor to convey automobile workpieces. The automobile workpieces are fixed on a lifting tool by manual operation, and the lifting tool is hung on the gantry type suspension conveyor by a robot. The gantry type suspension conveyor drives the lifting tool to move to above each treatment liquid tank and stop moving, and the lifting tool is sequentially immersed in different treatment liquid tanks by controlling the gantry type suspension conveyor, so as to realize the electroplating treatment of the automobile workpieces.

[0004] The existing suspension conveying device has the following problems when conveying automobile workpieces: 1. Treatment liquid residue: When the lifting tool is moved out of the treatment liquid tank, only gravity is relied on to naturally drain the residual treatment liquid on the automobile workpiece. For automobile workpieces with complex shape or recesses, the residual treatment liquid is difficult to completely drip off, resulting in a large amount of residual treatment liquid on the automobile workpiece, which in turn pollutes the subsequent treatment liquid tank and affects the electroplating quality of the automobile workpiece.

[0005] 2. Lifting tool shaking: When the gantry type suspension conveyor drives the lifting tool to move to above the treatment liquid tank and stop moving, the lifting tool may shake under the action of inertia. Therefore, it is necessary to wait for the lifting tool to stop shaking to ensure that the lifting tool can be stably immersed in the treatment liquid tank, thereby reducing the electroplating efficiency of the automobile workpiece. SUMMARY

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a suspended conveying device for electroplating treatment of automotive workpiece surfaces, comprising a gantry conveyor, the gantry conveyor including a gantry conveyor frame, a suspension unit for suspending a hanger mounted on the gantry conveyor frame, a damping unit for quickly restoring a swaying hanger to a stationary state mounted on the suspension unit, and a vibration unit for a vibrating hanger also mounted on the suspension unit; the suspension unit includes a top plate slidably mounted vertically within the gantry conveyor frame, the upper end of the top plate being connected to the gantry conveyor via a connector, and a transmission plate mounted on the lower end of the top plate via a rotating assembly, the left and right inner walls of the transmission plate being connected by a linkage. The components are all mounted with a suspension plate; the damping unit includes two damping plates symmetrically arranged front and back, which are slidably mounted on the lower side of the horizontal section of the transmission plate. The opposite sides of the two damping plates are set with a trapezoidal structure and are in contact with the lower side of the suspension plate. Multiple damping springs are connected between the front and rear sides of the vertical section of the damping plate and the transmission plate. An offset mechanism for driving the two damping plates to move synchronously back and forth is installed between the upper side of the vertical section of the two damping plates and the transmission plate; the vibration unit includes a vibration plate that is in contact with the upper end of the suspension plate. A striking mechanism for driving the vibration plate to strike the hanger on the suspension plate up and down is installed between the upper side of the vibration plate and the transmission plate.

[0007] Preferably, the rotating assembly includes a rotating cylinder fixedly installed on the upper middle part of the transmission plate. The inner wall of the rotating cylinder has multiple circumferentially evenly arranged mating grooves. Each mating groove has a mating block slidably installed in it. The mating groove is set as an inclined structure that mates with the mating block. A transmission rod is fixedly installed on the opposite sides of the multiple mating blocks. The upper end of the transmission rod is fixedly connected to a hydraulic rod output shaft fixedly installed on the lower side of the top plate.

[0008] Preferably, the rotating assembly further includes two symmetrically arranged support rods fixedly installed on the upper side of the horizontal section of the transmission plate, with the upper ends of the support rods slidably installed in a pre-set arc-shaped groove on the lower side of the top plate.

[0009] Preferably, the linkage assembly includes a rotating shaft rotatably mounted in the middle of the left and right inner walls of the transmission plate. The outer side of the rotating shaft is connected to the transmission plate through multiple arc-shaped sliders, and an arc-shaped spring is connected between the arc-shaped sliders and the transmission plate. The two rotating shafts are fixedly connected to the suspension plate on opposite sides.

[0010] Preferably, the offset mechanism includes two sliding plates symmetrically arranged front and back, which are slidably mounted on the upper side of the transmission plate by multiple connecting blocks. Multiple actuating blocks evenly arranged left and right are fixedly mounted on the rear side of the front sliding plate, and multiple L-shaped blocks evenly arranged left and right are fixedly mounted on the front side of the rear sliding plate.

[0011] Preferably, the offset mechanism further includes a plurality of mating rods evenly arranged on the left and right sides and fixedly installed on the upper side of the vertical section of the damping plate. The upper ends of the mating rods slide through the transmission plate back and forth. The installation positions of the mating rods located in front correspond one-to-one with the installation positions of the actuating blocks, and the installation positions of the mating rods located in the rear correspond one-to-one with the installation positions of the L-shaped blocks. The rear side of the actuating block and the left side of the horizontal section of the L-shaped block are both set as inclined surfaces that cooperate with their corresponding mating rods.

[0012] Preferably, a square rod is fixedly installed on the left end of both sliding plates. The lower end of the square rod is slidably connected to the upper side of the connecting plate and the transmission plate through a connecting plate. A return spring is connected between the connecting plate and the transmission plate. A square-structured synchronizing rod is fixedly installed on the left end of the square rod through two symmetrically arranged fixing rods. A toggle rod is fixedly installed on the upper middle part of the synchronizing rod.

[0013] Preferably, an arc-shaped plate is fixedly installed at the lower end of the top plate corresponding to the position of the lever, and the front end of the arc-shaped plate is set as an inclined surface that cooperates with the lever.

[0014] Preferably, the striking mechanism includes a striking plate fixedly mounted on the upper end of the vibrating plate by multiple fixing blocks. The striking plate slides up and down through the left and right ends of the transmission plate. A top extension spring connects the striking plate and the transmission plate. Elastic linkage rods are fixedly mounted on both the left and right ends of the striking plate. Inclined surfaces are opened on the opposite sides of the two elastic linkage rods.

[0015] Preferably, two L-shaped plates symmetrically arranged on the left and right are fixedly installed at the lower end of the top plate. Multiple lifting blocks arranged in an arc shape are fixedly installed on the upper side of the horizontal section of the L-shaped plates, and the upper end of the lifting blocks is provided with an inclined surface. When the transmission plate rotates clockwise, the inclined surface of the lifting block is used to drive the elastic linkage rod to move upward. When the transmission plate rotates counterclockwise, the inclined surface of the elastic linkage rod is used to cooperate with the lifting block to compress the telescopic end of the elastic linkage rod.

[0016] The beneficial effects of this invention are as follows: 1. When the hanger moves upward out of the treatment liquid tank, this invention, by setting a suspension unit to drive the hanger to reciprocate, causes the residual treatment liquid on the automotive workpiece to be thrown out under the action of centrifugal force. Furthermore, this invention, by setting a vibration unit to vibrate the hanger, ensures that the residual treatment liquid on the automotive workpiece is drained, reducing the amount of residual treatment liquid, thereby ensuring the electroplating quality of the automotive workpiece. At the same time, this invention, by setting an offset mechanism, allows the lower end of the hanger to periodically deflect backward at a certain angle. Therefore, when electroplating workpieces with complex shapes or grooves, the tilted hanger can ensure that the residual treatment liquid is completely drained, further reducing the amount of residual treatment liquid, thereby further ensuring the electroplating quality of the automotive workpiece.

[0017] 2. When the lifting device sways, the present invention uses a damping plate to prevent the swaying of the lifting device under the action of multiple damping springs, thereby enabling the lifting device to quickly return to a stationary state and increasing the electroplating efficiency of the lifting device.

[0018] 3. The present invention uses an offset mechanism to move the lifting device out of the treatment liquid tank in an inclined position, thereby reducing the amount of treatment liquid residue on the automotive workpiece when it is removed from the treatment liquid tank. This facilitates the rapid draining of the residual treatment liquid on the automotive workpiece and further increases the electroplating efficiency of the automotive workpiece. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a three-dimensional structural diagram of the invention and the lifting device.

[0021] Figure 2 This is a three-dimensional structural diagram of part of the structure and lifting device of the present invention.

[0022] Figure 3 This is a cross-sectional view of a portion of the structure of this invention.

[0023] Figure 4 This is a cross-sectional view of the suspension unit, damping unit, and vibration unit of the present invention.

[0024] Figure 5 This is a top view of the rotating assembly of the present invention.

[0025] Figure 6 This is a cross-sectional view of the rotating component structure of the present invention.

[0026] Figure 7 This is a cross-sectional view of the suspension unit, damping unit, and vibration unit of the present invention.

[0027] Figure 8 This is a cross-sectional view of the transmission plate and linkage assembly of the present invention.

[0028] Figure 9 This is a three-dimensional structural diagram of the suspension unit and vibration unit after the transmission plate has been partially removed, according to the present invention.

[0029] Reference numerals: 1. Gantry conveyor; 11. Gantry conveyor frame; 2. Suspension unit; 21. Top plate; 211. Arc-shaped trough; 212. Arc-shaped plate; 213. L-shaped plate; 214. Lifting block; 22. Connecting component; 23. Rotating assembly; 231. Rotating cylinder; 232. Mating block; 233. Transmission rod; 234. Hydraulic rod; 235. Support rod; 24. Transmission plate; 25. Linkage assembly; 251. Rotating shaft; 252. Arc-shaped spring 26. Spring; 3. Suspension plate; 3. Damping unit; 31. Damping plate; 32. Damping spring; 33. Offset mechanism; 331. Sliding plate; 332. Actuating block; 333. L-shaped block; 334. Matching rod; 335. Square rod; 336. Return spring; 337. Synchronizing rod; 338. Actuating rod; 4. Vibration unit; 41. Vibrating plate; 42. Striking mechanism; 421. Striking plate; 422. Top extension spring; 423. Elastic linkage rod. Detailed Implementation

[0030] The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Where no specific technology or conditions are specified in the embodiments, they shall be performed in accordance with the technology or conditions described in the literature in the field or in accordance with the product manual.

[0031] See Figure 1 and Figure 2 A suspended conveying device for electroplating treatment of automotive workpiece surfaces includes a gantry conveyor 1, the gantry conveyor 1 includes a gantry conveyor frame 11, a suspension unit 2 for a suspended hanger is installed on the gantry conveyor frame 11, a damping unit 3 for quickly restoring the swaying hanger to a stationary state is installed on the suspension unit 2, and a vibration unit 4 for a vibrating hanger is also installed on the suspension unit 2.

[0032] It should be noted that the gantry conveyor 1 also includes a slide rail and a drive unit. By controlling the drive unit, the gantry conveyor frame 11 is driven to move back and forth along the slide rail. A lifting component is installed on the lower side of the transverse section of the gantry conveyor frame 11, and the lifting component is connected to the suspension unit 2. By controlling the lifting component, the suspension unit 2 is driven to move up and down.

[0033] This invention is used for suspending and conveying automotive workpieces. It can quickly restore the swaying lifting device to a stationary state, thereby increasing the electroplating efficiency of the automotive workpieces. At the same time, by reciprocating and vibrating the lifting device, this invention ensures that the residual treatment liquid on the automotive workpieces is drained, reducing the amount of residual treatment liquid, thereby ensuring the electroplating quality of the automotive workpieces.

[0034] Specifically, firstly, an external robot places the lifting device for mounting the automotive workpiece onto the suspension unit 2. Then, the gantry conveyor 1 is controlled to move the suspension unit 2 and the lifting device to the corresponding position in the treatment liquid tank and stop moving. Under the action of the damping unit 3, the lifting device can quickly return to a stationary state. Then, the gantry conveyor 1 is controlled to move the suspension unit 2 downward, and the suspension unit 2 moves the lifting device into the treatment liquid tank in sequence. Next, the gantry conveyor 1 is controlled to move the suspension unit 2 upward, and the suspension unit 2 moves the lifting device upward out of the treatment liquid tank. Finally, the suspension unit 2 is controlled to rotate the lifting device back and forth, so that the residual treatment liquid on the automotive workpiece is thrown out under the action of centrifugal force. At the same time, the vibration unit 4 can vibrate the lifting device to ensure that the residual treatment liquid on the automotive workpiece is drained, reducing the amount of residual treatment liquid on the automotive workpiece.

[0035] The gantry conveyor 1 is controlled again to move the suspension unit 2 and the lifting device to the corresponding position of the next processing liquid tank and then stop moving. The above steps are repeated so that the gantry conveyor 1 moves the suspension unit 2 and the lifting device to the corresponding position of each processing liquid tank in sequence to realize the electroplating treatment of the automotive workpiece. After the electroplating treatment of the automotive workpiece is completed, the lifting device is removed from the suspension unit 2 by an external robot to complete the electroplating treatment of the automotive workpiece.

[0036] See Figure 1 , Figure 2 and Figure 7 The suspension unit 2 includes a top plate 21 that is slidably installed in the gantry conveyor frame 11. The upper end of the top plate 21 is connected to the gantry conveyor 1 through a connector 22. The lower end of the top plate 21 is equipped with a U-shaped transmission plate 24 through a rotating assembly 23. The left and right inner walls of the transmission plate 24 are equipped with suspension plates 26 through a linkage assembly 25.

[0037] It should be noted that the connecting piece 22 includes two inclined plates arranged symmetrically front to back and fixedly installed on the upper end of the top plate 21 by multiple bolts. The upper ends of the two inclined plates are inclined towards each other and fixedly installed with a fixed plate by multiple bolts. The upper end of the fixed plate is connected to the lifting component of the gantry conveyor 1 by bolts. By controlling the lifting component, the fixed plate is driven to move up and down, so that the fixed plate drives the top plate 21 to move up and down through the two inclined plates.

[0038] The suspension unit 2 is used to suspend the lifting device. Specifically, the external robot drives the lifting device to the corresponding position of the suspension plate 26 and hangs the lifting device on the suspension plate 26. The gantry conveyor 1 is controlled to move the lifting device sequentially to the corresponding position of each treatment liquid tank through the connector 22 and the top plate 21. The gantry conveyor 1 is also controlled to move the lifting device downward or upward through the connector 22 and the top plate 21, so that the lifting device can be immersed in the treatment liquid tank or removed from the treatment liquid tank. This allows the lifting device to be immersed in each treatment liquid tank in sequence, thereby realizing the electroplating treatment of automotive workpieces.

[0039] When the gantry conveyor 1 is controlled to move the lifting device upward out of the treatment liquid tank via the connector 22 and the top plate 21, the control rotation component 23 drives the transmission plate 24 to rotate back and forth. The transmission plate 24 drives the lifting device to rotate back and forth via the linkage component 25 and the suspension plate 26. This allows the residual treatment liquid on the automotive workpiece to be thrown out under the action of centrifugal force, thereby draining the automotive workpiece and reducing the amount of residual treatment liquid on the automotive workpiece, ensuring the electroplating quality of the automotive workpiece. After the electroplating of the automotive workpiece is completed, the lifting device is removed from the suspension plate 26 by an external robot.

[0040] See Figures 1-3 , Figure 5 and Figure 6 The rotating assembly 23 includes a rotating cylinder 231 fixedly installed on the upper middle part of the transmission plate 24. The inner wall of the rotating cylinder 231 is provided with multiple circumferentially evenly arranged mating grooves. Each mating groove is slidably installed with a mating block 232. The mating groove is set as an inclined structure that mates with the mating block 232. A transmission rod 233 is fixedly installed on the opposite sides of the multiple mating blocks 232. The upper end of the transmission rod 233 is fixedly connected to the output shaft of the hydraulic rod 234 fixedly installed on the lower side of the top plate 21. The rotating assembly 23 also includes two left-right symmetrically arranged support rods 235 fixedly installed on the upper side of the horizontal section of the transmission plate 24. The upper end of the support rod 235 is slidably installed in the arc-shaped groove 211 preset on the lower side of the top plate 21.

[0041] The rotating assembly 23 is used to drive the transmission plate 24 to reciprocate. Specifically, when the gantry conveyor 1 is controlled to move the lifting device upward out of the treatment liquid tank through the connecting piece 22 and the top plate 21, the control hydraulic rod 234 drives the mating block 232 to move up and down reciprocally through the transmission rod 233, so that the mating groove of the mating block 232 and the rotating cylinder 231 engages to drive the rotating cylinder 231 to reciprocate, thereby causing the rotating cylinder 231 to drive the transmission plate 24 to reciprocate, and the transmission plate 24 drives the support rod 235 to slide in the arc groove 211, so that the transmission plate 24 rotates stably under the action of the support rod 235.

[0042] See Figure 1 , Figure 2 and Figure 7 The damping unit 3 includes two symmetrically arranged L-shaped damping plates 31 that are slidably mounted on the lower side of the horizontal section of the transmission plate 24. The opposite sides of the two damping plates 31 are both set as trapezoidal structures and are in contact with the lower side of the suspension plate 26. Multiple damping springs 32 are connected between the front and rear sides of the vertical section of the damping plate 31 and the transmission plate 24. An offset mechanism 33 for driving the two damping plates 31 to move synchronously back and forth is installed on the upper side of the vertical section of the two damping plates 31 and the transmission plate 24.

[0043] See Figure 7 and Figure 8The linkage assembly 25 includes a rotating shaft 251 rotatably mounted in the middle of the left and right inner walls of the transmission plate 24. The outer side of the rotating shaft 251 is connected to the transmission plate 24 through multiple arc-shaped sliders, and an arc-shaped spring 252 is connected between the arc-shaped sliders and the transmission plate 24. The two rotating shafts 251 are fixedly connected to the opposite sides of the suspension plate 26.

[0044] The damping unit 3 is used to quickly restore the swaying lifting device to a stationary state. Specifically, when the lifting device is moved to the corresponding position of the suspension plate 26 by an external robot, the trapezoidal structure of the damping plate 31 ensures that the damping plate 31 will not interfere with the movement of the lifting device, ensuring that the lifting device can be hung on the suspension plate 26. Furthermore, the lifting device and the trapezoidal structure of the damping plate 31 can cooperate to ensure that the opposite sides of the two damping plates 31 are attached to the lifting device. Finally, the gantry conveyor 1 moves the lifting device to the corresponding position of the processing liquid tank and stops. During movement, the lifting device sways due to inertia. The swaying device drives the rotating shaft 251 to rotate through the suspension plate 26. Since the two damping plates 31 are attached to the lifting device, when the lifting device sways, it drives the damping plates 31 in the direction of movement to move and causes the corresponding damping springs 32 to deform. Under the action of multiple damping springs 32, the damping plates 31 in the direction of movement of the lifting device resist the swaying of the lifting device, thereby allowing the lifting device to quickly return to a stationary state and increasing the electroplating efficiency of the lifting device.

[0045] When the hanger needs to be removed from the treatment liquid tank, the offset mechanism 33 is controlled to move the hanger out of the treatment liquid tank in an inclined position, thereby reducing the amount of treatment liquid residue on the automotive workpiece when it is removed from the treatment liquid tank. This facilitates the rapid draining of the residual treatment liquid on the automotive workpiece and further increases the electroplating efficiency of the automotive workpiece. When the electroplated hanger is removed from the suspension plate 26, the rotating shaft 251 is in the vertical plane under the action of the arc-shaped slider and the arc-shaped spring 252, so as not to affect the subsequent hanging of the hanger on the suspension plate 26.

[0046] See Figure 3 and Figure 7 The offset mechanism 33 includes two sliding plates 331 that are symmetrically arranged front and back and are slidably mounted on the upper side of the transmission plate 24 via multiple connecting blocks. Multiple actuating blocks 332 that are evenly arranged left and right are fixedly mounted on the rear side of the sliding plate 331 located in front, and multiple L-shaped blocks 333 that are evenly arranged left and right are fixedly mounted on the front side of the sliding plate 331 located in rear.

[0047] See Figure 3 and Figure 4The offset mechanism 33 also includes a plurality of mating rods 334 evenly arranged on the left and right sides and fixedly installed on the upper side of the vertical section of the damping plate 31. The upper ends of the mating rods 334 slide through the transmission plate 24. The installation positions of the mating rods 334 located in front correspond one-to-one with the installation positions of the actuating block 332, and the installation positions of the mating rods 334 located in the rear correspond one-to-one with the installation positions of the L-shaped block 333. The rear side of the actuating block 332 and the left side of the horizontal section of the L-shaped block 333 are both set as inclined surfaces that cooperate with their corresponding mating rods 334.

[0048] See Figures 3-7 A square rod 335 is fixedly installed on the left end of the two sliding plates 331. The lower end of the square rod 335 is slidably connected to the upper side of the transmission plate 24 via a connecting plate. A return spring 336 is connected between the connecting plate and the transmission plate 24. A square synchronous rod 337 is fixedly installed on the left end of the square rod 335 via two symmetrically arranged fixed rods. A toggle rod 338 is fixedly installed on the upper middle part of the synchronous rod 337. Reinforcing ribs are fixedly installed between the fixed rods, the square rod 335, and the synchronous rod 337 to increase the stability between the fixed rods, the square rod 335, and the synchronous rod 337.

[0049] See Figure 3 and Figure 4 An arc-shaped plate 212 is fixedly installed at the lower end of the top plate 21 at the position corresponding to the toggle lever 338. The front end of the arc-shaped plate 212 is set as an inclined surface that cooperates with the toggle lever 338.

[0050] The offset mechanism 33 is used to drive the two damping plates 31 to move back and forth synchronously. Specifically, when it is necessary to remove the lifting device from the treatment fluid tank, the hydraulic rod 234 is first controlled to drive the mating block 232 to move downward through the transmission rod 233, so that the mating groove of the mating block 232 and the rotating cylinder 231 engages and drives the transmission plate 24 to rotate clockwise by a certain angle through the rotating cylinder 231. The transmission plate 24 drives the synchronous rod 337 to rotate clockwise through the square rod 335 and the fixed rod. The synchronous rod 337 drives the actuating rod 338 to rotate clockwise. When the actuating rod 338 rotates to the corresponding position of the arc plate 212, the actuating rod 338, under the action of the inclined surface of the arc plate 212, drives the square rod 335 to move to the left along the length direction of the sliding plate 331 through the synchronous rod 337 and the fixed rod.

[0051] Simultaneously, the square rod 335 drives the connecting plate to move and compresses the return spring 336. The square rod 335 drives the sliding plate 331 to move synchronously, causing the two sliding plates 331 to drive the actuating block 332 and the L-shaped block 333 to move to the left along the length of the sliding plate 331. When the inclined surfaces of the actuating block 332 and the L-shaped block 333 move to the corresponding positions of their corresponding mating rods 334, the mating rod 334 in front, under the action of the inclined surface of the actuating block 332, drives the damping plate 31 in front to move backward. The mating rod 334 in the rear, under the action of the inclined surface of the L-shaped block 333, drives the damping plate 31 in the rear to move backward, so that the damping plate 31 in front can push the lifting device backward, causing the lower end of the lifting device to deflect backward at a certain angle. At the same time, the damping plate 31 in the rear will not obstruct the movement of the lifting device, thereby allowing the lifting device to move out of the treatment liquid tank in an inclined posture.

[0052] When the hanger moves upward out of the treatment liquid tank and rotates back and forth, the lower end of the hanger can still be periodically deflected backward by a certain angle under the action of the inclined surface of the lever 338 and the arc plate 212. Therefore, when electroplating workpieces with complex shapes or grooves, the inclined hanger can ensure that the residual treatment liquid can be completely drained, further reducing the amount of residual treatment liquid, and thus further ensuring the electroplating quality of automotive workpieces.

[0053] See Figure 2 and Figure 7 The vibration unit 4 includes a vibration plate 41 that is in contact with the upper end of the suspension plate 26. A striking mechanism 42 is installed on the upper side of the vibration plate 41 and between the transmission plate 24. The striking mechanism 42 is used to drive the vibration plate 41 to strike the hanger on the suspension plate 26 up and down.

[0054] Vibration unit 4 is used to vibrate the lifting device. Specifically, when the lifting device is hung on the suspension plate 26 by an external robot, the vibration plate 41 is attached to the upper side of the lifting device. When the lifting device moves upward out of the treatment liquid tank and rotates back and forth, the striking mechanism 42 drives the vibration plate 41 to strike the vibrating device up and down, thereby making the automotive workpiece vibrate. This causes the residual treatment liquid on the automotive workpiece to drip off quickly under the action of vibration, further reducing the amount of residual treatment liquid, thereby further ensuring the electroplating quality of the automotive workpiece and increasing the electroplating efficiency of the automotive workpiece.

[0055] See Figure 7 and Figure 9 The striking mechanism 42 includes a striking plate 421 fixedly installed on the upper end of the vibrating plate 41 by multiple fixing blocks. The striking plate 421 slides up and down through the left and right ends of the transmission plate 24. A top extension spring 422 is connected between the striking plate 421 and the transmission plate 24. Elastic linkage rods 423 are fixedly installed on both the left and right ends of the striking plate 421. The two elastic linkage rods 423 have inclined surfaces on opposite sides.

[0056] See Figure 2 and Figure 3 Two L-shaped plates 213 arranged symmetrically on the left and right are fixedly installed at the lower end of the top plate 21. Multiple lifting blocks 214 arranged in an arc shape are fixedly installed on the upper side of the horizontal section of the L-shaped plate 213. The upper end of the lifting block 214 is provided with an inclined surface. When the transmission plate 24 rotates clockwise, the inclined surface of the lifting block 214 is used to drive the elastic linkage rod 423 to move upward. When the transmission plate 24 rotates counterclockwise, the inclined surface of the elastic linkage rod 423 is used to cooperate with the lifting block 214 to compress the telescopic end of the elastic linkage rod 423.

[0057] The striking mechanism 42 is used to drive the vibrating plate 41 to strike the vibrating lifting device up and down. Specifically, when the lifting device rotates clockwise, the transmission plate 24 drives the two elastic linkage rods 423 to rotate clockwise through the striking plate 421. When the two elastic linkage rods 423 rotate to the corresponding position of their respective lifting blocks 214, the two elastic linkage rods 423 drive the striking plate 421 to move upward under the action of the inclined surface of the lifting block 214 and compress the top extension spring 422. The striking plate 421 drives the vibrating plate 41 to move upward through the fixing block and separates from the lifting device. When the elastic linkage rods 423 and the lifting block 214 separate... When the device is lifted, the striking plate 421, under the action of the top extension spring 422, drives the vibrating plate 41 to strike the vibrating device downward through the fixed block. Multiple lifting blocks 214 are provided, so that the vibrating plate 41 can continuously strike the vibrating device downward. When the device rotates counterclockwise, the transmission plate 24 drives the two elastic linkage rods 423 to rotate counterclockwise through the striking plate 421. When the elastic linkage rod 423 rotates to the corresponding position of the lifting block 214, the inclined surface of the elastic linkage rod 423 and the lifting block 214 cooperate to compress the extension end of the elastic linkage rod 423, so as not to interfere with the movement of the elastic linkage rod 423.

[0058] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A suspended conveying device for electroplating treatment of automotive workpiece surfaces, comprising a gantry conveyor, the gantry conveyor including a gantry conveyor frame, and a suspension unit on which a suspension hanger is mounted, characterized in that, The suspension unit is equipped with a damping unit that allows the swaying lifting device to quickly return to a stationary state, and the suspension unit is also equipped with a vibration unit for the vibrating lifting device. The suspension unit includes a top plate that is slidably installed in the gantry conveyor frame. The upper end of the top plate is connected to the gantry conveyor through a connector. The lower end of the top plate is equipped with a transmission plate through a rotating assembly. The left and right inner walls of the transmission plate are equipped with suspension plates through a linkage assembly. The damping unit includes two damping plates symmetrically arranged front and back, which are slidably mounted on the lower side of the horizontal section of the transmission plate. The opposite sides of the two damping plates are set as trapezoidal structures and are in contact with the lower side of the suspension plate. Multiple damping springs are connected between the front and rear sides of the vertical section of the damping plate and the transmission plate. An offset mechanism for driving the two damping plates to move synchronously back and forth is installed on the upper side of the vertical section of the two damping plates and the transmission plate. The vibration unit includes a vibration plate that is in contact with the upper end of the suspension plate, and a striking mechanism that drives the vibration plate to strike the hanger on the suspension plate up and down is installed between the upper side of the vibration plate and the transmission plate.

2. The suspended conveyor device for electroplating treatment of automotive workpiece surfaces according to claim 1, characterized in that, The rotating assembly includes a rotating cylinder fixedly installed on the upper middle part of the transmission plate. The inner wall of the rotating cylinder has multiple circumferentially evenly arranged mating grooves. Each mating groove has a mating block slidably installed in it. The mating groove is set as an inclined structure that mates with the mating block. A transmission rod is fixedly installed on the opposite sides of the multiple mating blocks. The upper end of the transmission rod is fixedly connected to the hydraulic rod output shaft fixedly installed on the lower side of the top plate.

3. The suspended conveyor device for electroplating treatment of automotive workpiece surfaces according to claim 1, characterized in that, The rotating assembly also includes two symmetrically arranged support rods fixedly installed on the upper side of the horizontal section of the transmission plate, with the upper ends of the support rods slidably installed in a pre-set arc-shaped groove on the lower side of the top plate.

4. A suspended conveyor device for electroplating treatment of automotive workpiece surfaces according to claim 1, characterized in that, The linkage assembly includes a rotating shaft rotatably mounted in the middle of the left and right inner walls of the transmission plate. The outer side of the rotating shaft is connected to the transmission plate through multiple arc-shaped sliders, and an arc-shaped spring is connected between the arc-shaped sliders and the transmission plate. The two rotating shafts are fixedly connected to the suspension plate on opposite sides.

5. A suspended conveyor device for electroplating treatment of automotive workpiece surfaces according to claim 1, characterized in that, The offset mechanism includes two sliding plates symmetrically arranged front and back, which are slidably mounted on the upper side of the transmission plate by multiple connecting blocks. Multiple actuating blocks evenly arranged left and right are fixedly installed on the rear side of the front sliding plate, and multiple L-shaped blocks evenly arranged left and right are fixedly installed on the front side of the rear sliding plate.

6. A suspended conveyor device for electroplating treatment of automotive workpiece surfaces according to claim 5, characterized in that, The offset mechanism also includes multiple mating rods evenly arranged on the left and right sides and fixedly installed on the upper side of the vertical section of the damping plate. The upper ends of the mating rods slide through the transmission plate back and forth. The installation positions of the mating rods located in front correspond one-to-one with the installation positions of the actuating blocks, and the installation positions of the mating rods located in the rear correspond one-to-one with the installation positions of the L-shaped blocks. The rear side of the actuating block and the left side of the horizontal section of the L-shaped block are both set as inclined surfaces that cooperate with their corresponding mating rods.

7. A suspended conveyor device for electroplating treatment of automotive workpiece surfaces according to claim 5, characterized in that, A square rod is fixedly installed on the left end of both sliding plates. The lower end of the square rod is slidably connected to the upper side of the connecting plate and the transmission plate through a connecting plate. A return spring is connected between the connecting plate and the transmission plate. A square-structured synchronizing rod is fixedly installed on the left end of the square rod through two symmetrically arranged fixing rods. A toggle rod is fixedly installed on the upper middle part of the synchronizing rod.

8. A suspended conveyor device for electroplating treatment of automotive workpiece surfaces according to claim 7, characterized in that, An arc-shaped plate is fixedly installed at the lower end of the top plate corresponding to the position of the lever, and the front end of the arc-shaped plate is set as an inclined surface to cooperate with the lever.

9. A suspended conveyor device for electroplating treatment of automotive workpiece surfaces according to claim 1, characterized in that, The striking mechanism includes a striking plate fixedly mounted on the upper end of a vibrating plate by multiple fixing blocks. The striking plate slides up and down through the left and right ends of a transmission plate. A top extension spring connects the striking plate and the transmission plate. Elastic linkage rods are fixedly mounted on both the left and right ends of the striking plate. Inclined surfaces are provided on the opposite sides of the two elastic linkage rods.

10. A suspended conveyor device for electroplating treatment of automotive workpiece surfaces according to claim 9, characterized in that, Two L-shaped plates are fixedly installed at the lower end of the top plate, arranged symmetrically on the left and right. Multiple lifting blocks are fixedly installed on the upper side of the horizontal section of the L-shaped plates, and the upper end of the lifting blocks is provided with an inclined surface. When the transmission plate rotates clockwise, the inclined surface of the lifting block is used to drive the elastic linkage rod to move upward. When the transmission plate rotates counterclockwise, the inclined surface of the elastic linkage rod is used to cooperate with the lifting block to compress the telescopic end of the elastic linkage rod.

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