Vehicle door conveying line clamping and hoisting device for new energy vehicle general assembly workshop

Abstract

The invention relates to the technical field of new energy automobile processing, in particular to an automobile door conveying line clamping and hoisting device for a new energy automobile general assembly workshop, which comprises a hoisting assembly, a clamping assembly and a sensing assembly. The hoisting assembly comprises a hoisting base, two hoisting arms arranged in a staggered mode and a control piece. The two lifting arms which are arranged in a staggered mode are hinged to the lifting base, and the two lifting arms are hinged to each other. One end of the control piece is mounted on the hoisting seat, and the other end of the control piece is mounted at the hinged part of the two hoisting arms. The clamping assembly comprises two rotating seats, two rotating shafts and two clamping pieces, the rotating seats are installed on the hoisting arms in a one-to-one correspondence mode, the rotating shafts are rotationally connected into the rotating seats, and the clamping pieces are fixedly connected to the rotating shafts. The induction assembly comprises an induction piece and a locking piece, the induction piece is located at the bottom of the hoisting arm, one end of the locking piece is connected with the induction piece, and the other end of the locking piece is connected with the rotating base. The automobile door assembly device has the effect of facilitating assembly of the automobile door.

Description

Technical Field

[0001] This application relates to the technical field of new energy vehicle processing, and particularly relates to a clamping and lifting device for a door conveying line in a new energy vehicle general assembly workshop. Background Art

[0002] When installing the car door in the new energy vehicle general assembly workshop, the car door needs to be removed, conveyed to the door pre-assembly area through the door for assembly, and then the pre-assembled door is transported to the door assembly station on the mating line to re-assemble the door onto the whole vehicle.

[0003] At present, a door installation assisting robotic arm in a welding workshop with the publication number of CN219254590U includes an octagonal tube frame. The octagonal tube frame is a rectangular frame, and a swing joint is fixedly connected to the center position of one side of the top of the octagonal tube frame. The top of the octagonal tube frame is successively fixedly connected with a first dead point clamping component, a third dead point clamping component, and a fourth dead point clamping component. The first dead point clamping component and the third dead point clamping component are symmetrically arranged along the swing joint, and the position of the fourth dead point clamping component is higher than that of the third dead point clamping component and the first dead point clamping component. A second gap control insert component, a first car door gap control insert component, and a car door positioning pin switching cylinder component are fixedly connected to one side of the octagonal tube frame from top right to bottom respectively.

[0004] In view of the above related technologies, since a dead point clamping mechanism is used when clamping the car door, during the assembly process of the car door, it can only be located on one side of the octagonal tube frame, making it inconvenient to perform assembly on the other side of the octagonal tube frame. Summary of the Invention

[0005] In order to facilitate the assembly of the car door, this application provides a clamping and lifting device for a door conveying line in a new energy vehicle general assembly workshop.

[0006] The clamping and lifting device for a door conveying line in a new energy vehicle general assembly workshop provided by this application adopts the following technical solutions: A clamping and lifting device for a door conveying line in a new energy vehicle general assembly workshop, comprising: A lifting assembly, including a lifting seat, two staggeredly arranged lifting arms, and a control member. The two staggeredly arranged lifting arms are hinged to the lifting seat, and the intersection of the two staggeredly arranged lifting arms is hinged to each other. One end of the control member is installed on the lifting seat, and the other end is installed at the hinge of the two lifting arms to lock or release the position of the hinge of the lifting arms and the lifting seat; The clamping assembly includes a rotating base, a rotating shaft, and clamping members. There are two of each of the rotating base, the rotating shaft, and the clamping members. The rotating bases are respectively mounted on the lifting arm in a one-to-one correspondence, and the two rotating bases are arranged opposite to each other. The rotating shafts are respectively rotatably connected within the rotating bases, and the axis of the rotating shaft is located in the plane formed by the two intersecting lifting arms. The clamping members are fixedly connected to the rotating shafts. The sensing assembly includes a sensing member and a locking member. The sensing member is located at the bottom of the lifting arm. One end of the locking member is connected to the sensing member, and the other end is connected to the rotating base to lock the rotation of the rotating shaft.

[0007] By adopting the above technical solution, when it is necessary to convey the car door, the sensing assembly does not sense the weight of the car door. Therefore, the locking member does not lock the rotating shaft, and the rotating shaft can rotate freely. The opening of the clamping member is rotated to the outside of the plane where the lifting arm is located by using the rotation of the rotating shaft.

[0008] Then the car door is clamped into the opening of the clamping member, and the car door is controlled to continue to move into the plane where the lifting arm is located. After the car door moves into the plane where the lifting arm is located, the car door is lowered. At this time, the car door presses on the sensing member, so that the sensing member controls the locking member to lock the rotating shaft, thereby restricting the car door between the two lifting arms.

[0009] Then the lifting seat is controlled to lift the lifting arm. At this time, due to the influence of the self-weight of the car door on the lifting arm, the lower parts of the lifting arms approach each other, thereby driving the clamping members to clamp the car door tightly, and then the car door is conveyed to the processing station. At this time, the sealing strips on the car door can be assembled on both sides of the lifting assembly, which is convenient to set up assembly stations on both sides of the lifting assembly, optimize the spatial layout of the stations, and facilitate the assembly of the car door.

[0010] When removing and installing the car door, it is also possible to operate on either side of the lifting assembly. Lift the clamped car door on either side of the lifting assembly. During the lifting process of the car door, the pressure on the lifting arm decreases and the clamping is released naturally. At the same time, the sensing assembly does not sense the weight of the car door either. Therefore, the locking member releases the locking of the rotating shaft, enabling the rotating shaft to rotate freely. The rotation of the rotating shaft is used to pull the car door to move towards one side, thereby rotating the opening of the clamping member to the outside of the plane where the lifting arm is located, and then the car door can be easily removed and installed.

[0011] Then the control member is controlled to lock the hinge position of the lifting arm and the position of the lifting seat, thereby preventing the lifting arms from approaching each other due to their own self-weight, which is convenient for the subsequent conveying of the car door by the lifting assembly.

[0012] Clamping is carried out by using two staggered lifting arms and clamping members, which not only facilitates the setting of workstations on both sides of the lifting assembly to assemble the clamped car door, but also can optimize the spatial setting of the assembly workstations. At the same time, when transporting and removing the car door for installation, it can also be carried out on either side of the lifting assembly. Therefore, workstations for installing and removing the car door can be set on either side or both sides of the lifting assembly, thus greatly reducing the limitation of the assembly line workstations for car door installation and further greatly facilitating the assembly of the car door.

[0013] Optionally, the clamping member includes a clamping seat, clamping claws and a buffer part. The clamping seat is fixedly connected to the rotating shaft. The clamping claws are slidably connected to the clamping seat. The buffer part is installed in the clamping seat and is connected to the clamping claws.

[0014] By adopting the above technical solution, with the cooperation of the clamping seat, clamping claws and buffer part, when the car door is located between the two lifting arms and is clamped by the clamping member, the buffer part buffers the clamping of the car door, thereby reducing the damage suffered by the car door during assembly and transportation.

[0015] Optionally, a plurality of the clamping claws are provided on the same clamping seat. The buffer part includes a main balance rod, a secondary balance rod, a secondary balance rod and a buffer spring. The middle parts of the main balance rod and the secondary balance rod are hinged to the clamping seat, and one end of the main balance rod abuts against the secondary balance rod. A plurality of secondary balance rods are provided. The middle part of each balance rod is hinged to the main balance rod or the secondary balance rod. The shortest distance from each secondary balance rod to the middle part of the main balance rod or the secondary balance rod is equal. The clamping claws abut against both ends of the secondary balance rod one by one, and the buffer spring is sleeved on the clamping claws. One end of the buffer spring is fixedly connected to the end of the clamping claw close to the secondary balance rod, and the other end abuts against the inner wall of the clamping seat.

[0016] By adopting the above technical solution, when the car door is placed into the clamping claws, the car door will first abut against any one of the clamping claws. At this time, the abutting clamping claw will move towards the inside of the clamping seat, and the clamping claw moving towards the inside will synchronously push the adjacent clamping claws towards the car door for clamping through the lever action of the secondary balance rod, so that the clamping claws located on the same secondary balance rod abut against the car door.

[0017] And when the clamping claws located on the same secondary balance rod all abut against the car door, the secondary balance rod will continue to push one end of the secondary balance rod to rotate towards the inside of the clamping seat. By the lever action, the other end of the secondary balance rod will rotate towards the outside of the clamping seat, and then push the other secondary balance rod located on the same secondary balance rod to rotate towards the outside of the clamping seat synchronously, so that the clamping claws on the secondary balance rod that abut against the secondary balance rod all abut against the car door.

[0018] While the secondary balance bar rotates, it will also drive the main balance bar to rotate. The rotation of the main balance bar will further push the other end of the same main balance bar, the secondary balance bar, to rotate synchronously towards the outside of the clamping seat, so that all the clamping claws are in contact with the car door. While buffering the contact point of a single clamping claw, the other contact claws can also contact the car door synchronously, and multiple clamping claws can fit the curvature of the car door edge, making the contact of the clamping claws more stable.

[0019] Optionally, the two rotating seats are at the same height of the lifting arm.

[0020] By adopting the above technical solution, the clamping members are installed at the same height by using the rotating seats at the same height, so that the clamping members can be more evenly stressed during the clamping process.

[0021] Optionally, an installation groove is formed in the rotating seat, and the rotating shaft is inserted into the installation groove.

[0022] By adopting the above technical solution, the cooperation of the installation groove and the rotating shaft makes it convenient to disassemble the clamping member, so as to replace different clamping members for different models of car doors.

[0023] Optionally, the sensing member includes a pressure-receiving part, a return spring and a connecting rod. The pressure-receiving part is slidably connected to the bottom of the lifting arm in the vertical direction. One end of the return spring is fixedly connected to the lifting arm, and the other end is fixedly connected to the pressure-receiving part. One end of the connecting rod is fixedly connected to the pressure-receiving part, and the other end is fixedly connected to the locking member.

[0024] By adopting the above technical solution, when the car door presses on the pressure-receiving part, the pressure-receiving part moves downward, and the return spring is compressed. Thus, the pressure-receiving part drives the connecting rod to move downward, and the connecting rod moving downward drives the locking member to lock the rotating shaft.

[0025] When the car door disengages from the pressure-receiving part, the return spring resets, and the return spring pushes the pressure-receiving part to move upward. Thus, the pressure-receiving part drives the connecting rod to move upward, and the connecting rod moving upward drives the locking member to release the locking of the rotating shaft.

[0026] Optionally, the locking member includes a locking block. The locking block is fixedly connected to the connecting rod, and a locking groove is formed in the rotating shaft. The locking groove is located on the movement path of the locking block.

[0027] By adopting the above technical solution, when the pressure-receiving part drives the connecting rod to move downward, the locking block is inserted into the locking groove, so that the locking block locks the rotating shaft.

[0028] When the pressure-receiving part drives the connecting rod to move upward, the locking block disengages from the locking groove, so that the locking block releases the locking of the rotating shaft.

[0029] Optionally, a sliding hole is vertically formed in the lifting arm. The pressure-receiving part includes a force-receiving shaft and a pressure-receiving wheel. The force-receiving shaft is rotatably connected in the sliding hole. The pressure-receiving wheel is rotatably connected to the force-receiving shaft, and the diameter of the pressure-receiving wheel is larger than the width of the lifting arm.

[0030] By adopting the above technical solution, since relative movement will occur between the bottom of the lifting arm and the car door during the clamping process of the lifting arm, the pressure-receiving part is set as a pressure-receiving wheel, which facilitates the relative movement between the car door and the bottom of the lifting arm during the clamping process of the lifting arm.

[0031] Optionally, the pressure-receiving wheel includes an abutting wheel and a limiting disc. Both the abutting wheel and the limiting disc are sleeved on the force-receiving shaft. The diameter of the abutting wheel is smaller than that of the limiting disc. Two limiting discs are provided, and the abutting wheel is located between the two limiting discs.

[0032] By adopting the above technical solution, by using the cooperation of the abutting wheel and the limiting disc, when it is necessary to convey the car door, the car door is directly clamped between the two limiting discs, so that the car door can be quickly positioned in the plane where the lifting arm is located, achieving the effect of rapid feeding.

[0033] Optionally, the control part includes a locking box and a locking seat. Two relatively arranged guiding seats are fixedly connected in the locking box. A locking rod is slidably connected vertically in the guiding seat. One end of the locking rod passes through the locking box, and a locking head is fixedly connected to the end portion passing through the locking box. The horizontal cross-section of the locking head is rectangular. A guiding rod is fixedly connected to one end of the locking head located in the locking box. The guiding rod is located between the two mutually arranged guiding seats, so that the guiding rod drives the locking rod to rotate 90° each time the locking rod moves in the locking box. The locking seat is fixedly connected to the hinge joint of the two lifting arms. A locking plate is fixedly connected to the locking seat. A locking hole is formed in the locking plate, and the width of the opening of the locking hole is smaller than the length of the locking head.

[0034] By adopting the above technical solution, when it is necessary to lock the lifting arm, the lifting arm is abutted against the ground, so that the locking seat moves closer to the locking box. At this time, the locking head passes through the locking hole, and then the locking head abuts against the locking seat, so that the locking rod moves in the locking box. When the locking rod moves in the locking box, the guiding rod drives the locking rod to rotate under the guidance of the guiding seat. When the guiding rod rotates, the locking head rotates 90°, so that the length direction of the locking head is located in the width direction of the locking hole, and the locking head abuts against the inner side wall of the locking plate, thereby completing the locking of the position of the lifting arm.

[0035] When it is necessary to release the lock of the lifting arm, the lifting arm abuts against the ground, so that the locking head abuts against the locking seat, and the locking rod moves in the locking box. When the locking rod moves in the locking box, the guiding rod drives the locking rod to rotate under the guidance of the guiding seat. When the guiding rod rotates, it drives the locking head to rotate by 90°. At this time, the length direction of the locking head matches the length direction of the locking hole, so that the locking head disengages from the locking hole, thereby releasing the lock of the lifting arm.

[0036] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the cooperation of the lifting seat, lifting arm, control member, rotating seat, rotating shaft, clamping member, sensing member and locking member, it is not only convenient to set workstations on both sides of the lifting assembly to assemble the clamped car door, and the space setting of the assembly workstation can be optimized. At the same time, when transporting and removing the car door for installation, it can also be carried out on either side of the lifting assembly. Therefore, workstations for loading and unloading the car door can also be set on either side or both sides of the lifting assembly, thereby greatly reducing the limitation of the assembly line workstations for car door installation, and thus greatly facilitating the assembly of the car door; 2. Through the cooperation of the clamping seat, clamping claws, main balance rod, secondary balance rod, auxiliary balance rod and buffer spring, it is possible to fit the curvature of the car door edge, making the abutment of the clamping claws more stable; 3. Through the cooperation of the abutting wheel and the limiting disc, when it is necessary to transport the car door, the car door is directly clamped between the two limiting discs, so that the car door can be quickly positioned in the plane where the lifting arm is located, achieving the effect of rapid feeding; at the same time, during the clamping process of the lifting arm, relative movement will occur between the bottom of the lifting arm and the car door. The abutting wheel facilitates the relative movement between the car door and the bottom of the lifting arm during the clamping process of the lifting arm; and when controlling the lifting arm to be locked or unlocked, the pressure wheel on the bottom of the lifting arm can abut against the ground, facilitating the movement of the lifting arm on the ground and reducing the damage to the lifting arm. Description of the Drawings

[0037] Figure 1 It is a schematic structural diagram of a clamping and lifting device for a car door conveying line in an assembly workshop of a new energy vehicle in an embodiment of the present application.

[0038] Figure 2 It is a cross-sectional view of a clamping and lifting device for a car door conveying line in an assembly workshop of a new energy vehicle in an embodiment of the present application.

[0039] Figure 3 It is Figure 2 An enlarged view of part A in

[0040] Figure 4 It is Figure 2 An enlarged view of part B in

[0041] Figure 5 It is a schematic structural diagram of the control member in the embodiment of the present application.

[0042] Figure 6 It is a schematic structural diagram of the sensing member in the embodiment of the present application.

[0043] Description of the reference numerals: 1. Lifting assembly; 11. Lifting seat; 12. Lifting arm; 121. Hinge rod; 122. Clamping rod; 13. Control member; 131. Locking box; 132. Locking seat; 133. Guide seat; 134. Locking rod; 135. Locking head; 136. Guide rod; 137. Locking plate; 138. Locking hole; 2. Clamping assembly; 21. Rotating seat; 22. Rotating shaft; 23. Clamping member; 231. Clamping seat; 232. Clamping claw; 233. Buffer part; 2331. Main balance rod; 2332. Secondary balance rod; 2333. Slave balance rod; 2334. Buffer spring; 3. Sensing assembly; 31. Sensing member; 311. Compressed part; 3111. Force-bearing shaft; 3112. Compressed wheel; 312. Return spring; 313. Connecting rod; 32. Locking member; 321. Locking block; 4. Installation groove; 5. Limiting opening; 6. Locking groove; 7. Sliding hole; 8. Contact wheel; 9. Limiting disc. Detailed implementation manners

[0044] The following further Figures 1-6 describes the present application in detail with reference to the

[0045] The embodiment of the present application discloses a door conveying line clamping and lifting device for a new energy vehicle general assembly workshop.

[0046] Refer to Figure 1, A clamping and hoisting device for a door conveyor line in a new energy vehicle general assembly workshop includes a hoisting assembly 1, a clamping assembly 2, and an induction assembly 3. The hoisting assembly 1 includes a hoisting seat 11, two staggeredly arranged hoisting arms 12, and a control member 13. The two staggeredly arranged hoisting arms 12 are hinged to the hoisting seat 11, and the intersections of the two staggeredly arranged hoisting arms 12 are hinged to each other. One end of the control member 13 is installed on the hoisting seat 11, and the other end is installed at the hinge of the two hoisting arms 12. The clamping assembly 2 includes a rotating seat 21, a rotating shaft 22, and a clamping member 23. There are two rotating seats 21, rotating shafts 22, and clamping members 23 respectively. The rotating seats 21 are correspondingly installed on the hoisting arms 12, and the two rotating seats 21 are arranged oppositely. The rotating shafts 22 are correspondingly rotatably connected in the rotating seats 21. The axis of the rotating shaft 22 is located in the plane formed by the two staggeredly arranged hoisting arms 12. The clamping member 23 is fixedly connected to the rotating shaft 22. The induction assembly 3 includes an induction member 31 and a locking member 32. The induction member 31 is located at the bottom of the hoisting arm 12. One end of the locking member 32 is connected to the induction member 31, and the other end is connected to the rotating seat 21.

[0047] Clamping is carried out by using two staggeredly arranged hoisting arms 12 and the clamping member 23. This not only facilitates the setting of workstations on both sides of the hoisting assembly 1 for assembling the clamped door, but also can optimize the spatial setting of the assembly workstations. At the same time, when transporting and removing the door for installation, it can be carried out on either side of the hoisting assembly 1. Therefore, workstations for loading and unloading the door can be set on either side or both sides of the hoisting assembly 1, thus greatly reducing the limitation of the assembly line workstations for door installation, and further greatly facilitating the assembly of the door.

[0048] In this embodiment, the hoisting arm 12 includes a hinged rod 121 whose top is hinged to the hoisting seat 11 and a clamping rod 122 arranged in a hook shape. One end of the hinged rod 121 away from the hoisting seat 11 is hinged to the clamping rod 122. The clamping rods 122 are staggeredly arranged, and the intersections of the clamping rods 122 are hinged to each other. By hinging the hinged rod 121 and the clamping rod 122, a small rotation of the clamping rod 122 can change the distance between the hoisting seat 11 and the hinge of the clamping rod 122 to a greater extent.

[0049] Refer to Figures 2-5, the control member 13 includes a locking box 131 and a locking seat 132. Two oppositely arranged guiding seats 133 are fixedly connected inside the locking box 131. Guiding inclined surfaces are staggeredly arranged on the guiding seats 133. A locking rod 134 is slidably connected vertically inside the guiding seat 133. One end of the locking rod 134 passes through the locking box 131, and a locking head 135 is fixedly connected to the end portion passing through the locking box 131. The horizontal cross-section of the locking head 135 is rectangular. A guiding rod 136 is fixedly connected to one end of the locking head 135 located in the locking box 131. The guiding rod 136 is located between the two mutually arranged guiding seats 133. Each time the locking rod 134 moves inside the locking box 131, the guiding rod 136 abuts against the guiding inclined surface on the guiding seat 133, causing the guiding rod 136 to drive the locking rod 134 to rotate 90°. The locking seat 132 is fixedly connected to the hinge joint of the two lifting arms 12. A locking plate 137 is fixedly connected to the locking seat 132. A locking hole 138 is formed in the locking plate 137. The width of the opening of the locking hole 138 is smaller than the length of the locking head 135. By using the fact that each time the locking rod 134 moves inside the locking box 131, the guiding rod 136 drives the locking rod 134 to rotate 90°, the locking head 135 rotates 90° along with the locking rod 134. Furthermore, the locking head 135 switches while passing through the locking hole 138 and being limited by the locking plate 137, completing the locking or unlocking of the position between the locking seat 132 and the lifting seat 11.

[0050] When it is necessary to lock the lifting arm 12, the lifting arm 12 is abutted against the ground, causing the locking seat 132 to move closer to the locking box 131. At this time, the locking head 135 passes through the locking hole 138. Then the locking head 135 abuts against the locking seat 132, causing the locking rod 134 to move inside the locking box 131. When the locking rod 134 moves inside the locking box 131, the guiding rod 136 drives the locking rod 134 to rotate under the guidance of the guiding seat 133. When the guiding rod 136 rotates, it drives the locking head 135 to rotate 90°, causing the length direction of the locking head 135 to be located in the width direction of the locking hole 138. The locking head 135 abuts against the inner side wall of the locking plate 137, thus completing the locking of the position of the lifting arm 12.

[0051] When it is necessary to unlock the lifting arm 12, the lifting arm 12 is abutted against the ground, causing the locking head 135 to abut against the locking seat 132. The locking rod 134 moves inside the locking box 131. When the locking rod 134 moves inside the locking box 131, the guiding rod 136 drives the locking rod 134 to rotate under the guidance of the guiding seat 133. When the guiding rod 136 rotates, it drives the locking head 135 to rotate 90°. At this time, the length direction of the locking head 135 matches the length direction of the locking hole 138, causing the locking head 135 to disengage from the locking hole 138, thus unlocking the lifting arm 12.

[0052] The two rotating seats 21 are located at the same height of the lifting arm 12. The clamping members 23 at the same height are installed by using the rotating seats 21 at the same height, so that the clamping members 23 can clamp both sides of the door at the same height, making the forces on both sides of the door more uniform during the clamping process of the clamping members 23.

[0053] In an alternative embodiment, an installation groove 4 is formed in the rotating seat 21, and the rotating shaft 22 is inserted into the installation groove 4. By means of the cooperation between the installation groove 4 and the rotating shaft 22, the clamping member 23 is convenient to disassemble, so as to replace the clamping member 23 with different models for different types of doors.

[0054] Refer to Figure 1 , a limiting opening 5 is formed on one side of the installation groove 4. The limiting opening 5 is provided for the clamping member 23 to pass through. At the same time, the angle of the limiting opening 5 is 150°. The rotation range of the clamping member 23 is the opening angle of the limiting opening 5. Therefore, the edge of the limiting opening 5 limits the rotation angle of the clamping member 23 to prevent the rotation angle of the clamping member 23 from being too large. When installing the door, the clamping member 23 is rotated to abut against the edge of the limiting opening 5, so that the rotation angles of the two clamping members 23 are the same, facilitating the door to be placed into the two clamping members 23 simultaneously.

[0055] Refer to Figure 2 and Figure 5 , the clamping member 23 in this embodiment includes a clamping seat 231, clamping claws 232 and a buffer portion 233. The clamping seat 231 is fixedly connected to the rotating shaft 22, the clamping claws 232 are slidably connected to the clamping seat 231, the buffer portion 233 is installed in the clamping seat 231, and the buffer portion 233 is connected to the clamping claws 232. By means of the cooperation between the clamping seat 231, the clamping claws 232 and the buffer portion 233, when the clamping member 23 clamps the door between the two lifting arms 12, the buffer portion 233 buffers the clamping of the door, thereby reducing the damage suffered by the door during assembly and transportation.

[0056] There are multiple clamping claws 232 located on the same clamping seat 231. In this embodiment, the number of clamping claws 232 is set to 6. The buffer part 233 includes a main balance rod 2331, a secondary balance rod 2332, a slave balance rod 2333, and a buffer spring 2334. The middle parts of the main balance rod 2331 and the secondary balance rod 2332 are hinged on the clamping seat 231, and one end of the main balance rod 2331 abuts against the secondary balance rod 2332. There are 3 slave balance rods 2333, and the middle part of each balance rod is hinged on the main balance rod 2331 or the secondary balance rod 2332. The shortest distance from each slave balance rod 2333 to the middle part of the main balance rod 2331 or the secondary balance rod 2332 is equal. The clamping claws 232 abut against both ends of the slave balance rod 2333 one by one, and the buffer spring 2334 is sleeved on the clamping claw 232. One end of the buffer spring 2334 is fixedly connected to the end of the clamping claw 232 close to the slave balance rod 2333, and the other end abuts against the inner wall of the clamping seat 231.

[0057] When the car door is placed inside the clamping claws 232, the car door will first abut against any one of the clamping claws 232. At this time, the abutting clamping claw 232 will move towards the inside of the clamping seat 231, and the clamping claw 232 moving towards the inside will synchronously push the adjacent clamping claws 232 towards the car door for clamping through the lever action of the slave balance rod 2333, so that the clamping claws 232 located on the same slave balance rod 2333 abut against the car door.

[0058] And when all the clamping claws 232 located on the same slave balance rod 2333 abut against the car door, the slave balance rod 2333 will continue to push one end of the secondary balance rod 2332 to rotate towards the inside of the clamping seat 231. Due to the lever action, the other end of the secondary balance rod 2332 will rotate towards the outside of the clamping seat 231, and then push the other slave balance rod 2333 located on the same secondary balance rod 2332 to rotate synchronously towards the outside of the clamping seat 231, so that the clamping claws 232 on the slave balance rod 2333 that abut against the slave balance rod 2333 all abut against the car door.

[0059] When the secondary balance rod 2332 rotates, it will also drive the main balance rod 2331 to rotate. The rotation of the main balance rod 2331 will then push the other slave balance rod 2333 located on the same main balance rod 2331 to rotate synchronously towards the outside of the clamping seat 231, so that all the clamping claws 232 abut against the car door. While buffering the abutting point of a single clamping claw 232, other abutting claws can also abut against the car door synchronously, and multiple clamping claws 232 can fit the curvature of the car door edge, making the abutment of the clamping claws 232 more stable.

[0060] Refer to Figure 4 and Figure 6, the sensing member 31 includes a pressure-receiving portion 311, a return spring 312, and a connecting rod 313. The pressure-receiving portion 311 is slidably connected to the bottom of the lifting arm 12 in the vertical direction. One end of the return spring 312 is fixedly connected to the lifting arm 12, and the other end is fixedly connected to the pressure-receiving portion 311. One end of the connecting rod 313 is fixedly connected to the pressure-receiving portion 311, and the other end is fixedly connected to the locking member 32.

[0061] When the car door presses on the pressure-receiving portion 311, the pressure-receiving portion 311 moves downward, and the return spring 312 is compressed. Thus, the pressure-receiving portion 311 drives the connecting rod 313 to move downward, and the downward movement of the connecting rod 313 drives the locking member 32 to lock the rotating shaft 22.

[0062] When the car door disengages from the pressure-receiving portion 311, the return spring 312 resets, and the return spring 312 pushes the pressure-receiving portion 311 to move upward. Thus, the pressure-receiving portion 311 drives the connecting rod 313 to move upward, and the upward movement of the connecting rod 313 drives the locking member 32 to release the lock on the rotating shaft 22.

[0063] The locking member 32 in this embodiment includes a locking block 321. The locking block 321 is fixedly connected to the connecting rod 313. A locking groove 6 is formed on the rotating shaft 22, and the locking groove 6 is located on the movement path of the locking block 321. The rotating of the rotating shaft 22 is locked by using the locking block 321 to be clamped in the locking groove 6.

[0064] When the pressure-receiving portion 311 drives the connecting rod 313 to move downward, the locking block 321 is inserted into the locking groove 6, so that the locking block 321 locks the rotating shaft 22.

[0065] When the pressure-receiving portion 311 drives the connecting rod 313 to move upward, the locking block 321 disengages from the locking groove 6, so that the locking block 321 releases the lock on the rotating shaft 22.

[0066] A sliding hole 7 is formed in the lifting arm 12 in the vertical direction. The pressure-receiving portion 311 includes a force-receiving shaft 3111 and a pressure-receiving wheel 3112. The force-receiving shaft 3111 is rotatably connected in the sliding hole 7, and the pressure-receiving wheel 3112 is rotatably connected to the force-receiving shaft 3111, so that the force-receiving shaft 3111 can drive the pressure-receiving wheel 3112 to slide in the vertical direction.

[0067] Since relative movement will occur between the bottom of the lifting arm 12 and the car door during the clamping process of the lifting arm 12, the pressure-receiving portion 311 is set as the pressure-receiving wheel 3112, which is convenient for the relative movement between the car door and the bottom of the lifting arm 12 during the clamping process of the lifting arm 12.

[0068] Meanwhile, the diameter of the pressure wheel 3112 is greater than the width of the lifting arm 12. When the stress shaft 3111 is located at the uppermost end of the sliding hole 7, the lowermost edge of the pressure wheel 3112 is located on the lower side of the lifting arm 12. When controlling the locking or unlocking of the lifting arm 12, the pressure wheel 3112 on the bottom of the lifting arm 12 can abut against the ground, facilitating the movement of the lifting arm 12 on the ground and reducing the damage to the lifting arm 12.

[0069] In an alternative embodiment, the pressure wheel 3112 includes an abutting wheel 8 and a limiting disc 9. Both the abutting wheel 8 and the limiting disc 9 are sleeved on the stress shaft 3111, and the diameter of the abutting wheel 8 is smaller than that of the limiting disc 9. Two limiting discs 9 are provided, and the abutting wheel 8 is located between the two limiting discs 9. The setting of the two limiting discs 9 can position and limit the car door when loading the car door.

[0070] When it is necessary to convey the car door, the car door is directly clamped between the two limiting discs 9, so that the car door can be quickly positioned in the plane where the lifting arm 12 is located, achieving the effect of quick loading.

[0071] The implementation principle of the clamping and lifting device for the car door conveying line in the general assembly workshop of new energy vehicles in the embodiment of the present application is as follows: when it is necessary to convey the car door, at this time, the return spring 312 is in the reset state, so the rotating shaft 22 can rotate freely. Usually, when conveying the car door, after the previous car door is removed, when the car door is removed, it will drive the clamping jaw 232 to rotate towards the removed side. Therefore, when conveying the car door, the clamping jaw 232 is still facing the outside of the plane where the lifting arm 12 is located. At this time, it is convenient to insert the car door into the opening of the clamping member 23.

[0072] After inserting the car door into the opening of the clamping member 23, control the car door to continue to move into the plane where the lifting arm 12 is located, and then insert the car door between the two limiting discs 9. At this time, the car door moves to the plane where the lifting arm 12 is located. Lower the car door, and the car door presses the abutting wheel 8, causing the return spring 312 to compress, thereby driving the connecting rod 313 to move downward. The downward movement of the connecting rod 313 drives the locking block 321 to be inserted into the locking groove 6, so that the locking block 321 locks the rotating shaft 22, thereby restricting the car door between the two lifting arms 12.

[0073] Next, drive the lifting arm 12 to move downward so that the locking head 135 abuts against the locking seat 132. At this time, the guide rod 136 drives the locking rod 134 to rotate under the guidance of the guide seat 133. When the guide rod 136 rotates, it drives the locking head 135 to rotate 90°. The length direction of the locking head 135 matches the length direction of the locking hole 138, so that the locking head 135 disengages from the locking hole 138, thereby releasing the locking of the lifting arm 12. Then drive the lifting arm 12 to move upward. At this time, affected by the self-weight of the car door, the lower parts of the lifting arm 12 approach each other, thereby driving the clamping member 23 to clamp the car door, and then conveying the car door to the processing station. At this time, the sealing strips on both sides of the lifting assembly 1 can be assembled on the car door, which is convenient to set up assembly stations on both sides of the lifting assembly 1 respectively, optimize the spatial layout of the stations, and facilitate the assembly of the car door.

[0074] When installing the removed car door, lift the clamped car door on either side of the lifting assembly 1. During the lifting process of the car door, the pressure on the lifting arm 12 decreases and it naturally relaxes and clamps. At the same time, the return spring 312 returns and drives the connecting rod 313 to move upward. When the connecting rod 313 moves upward, the locking block 321 disengages from the locking groove 6, so that the locking block 321 releases the locking of the rotating shaft 22, and the clamping claw 232 can rotate freely, and the car door can be directly removed. At this time, the limiting disc 9 at the lower end of the lifting arm 12 abuts against the ground.

[0075] Then drive the lifting arm 12 to move downward so that the locking head 135 abuts against the locking seat 132. At this time, the guide rod 136 drives the locking rod 134 to rotate under the guidance of the guide seat 133. When the guide rod 136 rotates, it drives the locking head 135 to rotate 90°, so that the length direction of the locking head 135 is located in the width direction of the locking hole 138, and the locking head 135 abuts against the inner side wall of the locking plate 137, thereby completing the locking of the position of the lifting arm 12. At this time, the clamping claw 232 maintains the rotation angle when the car door is removed, so as to facilitate loading the car door when running to the car door loading station.

[0076] Using two staggered lifting arms 12 and clamping members 23 for clamping is not only convenient for setting up stations on both sides of the lifting assembly 1 to assemble the clamped car door, but also can optimize the spatial setting of the assembly stations. At the same time, when conveying, removing and installing the car door, it can also be carried out on either side of the lifting assembly 1. Therefore, the stations for loading and unloading the car door can also be set on either side or both sides of the lifting assembly 1, thereby greatly reducing the limitation of the assembly line stations for installing the car door, and thus greatly facilitating the assembly of the car door.

[0077] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A door conveying line clamping and hoisting device for the general assembly workshop of new energy vehicles, characterized in that, Comprising: A hoisting assembly (1), including a hoisting seat (11), two staggeringly arranged hoisting arms (12) and a control member (13). The two staggeringly arranged hoisting arms (12) are hinged to the hoisting seat (11), and the intersections of the two staggeringly arranged hoisting arms (12) are hinged to each other. One end of the control member (13) is installed on the hoisting seat (11), and the other end is installed at the hinge of the two hoisting arms (12) to lock or release the position of the hinge of the hoisting arm (12) and the hoisting seat (11); A clamping assembly (2), including a rotating seat (21), a rotating shaft (22) and a clamping member (23). There are two of the rotating seat (21), the rotating shaft (22) and the clamping member (23). The rotating seats (21) are respectively installed on the hoisting arms (12) in a one-to-one correspondence, and the two rotating seats (21) are arranged oppositely. The rotating shafts (22) are respectively rotatably connected in the rotating seats (21), and the axis of the rotating shaft (22) is located in the plane formed by the two staggeringly arranged hoisting arms (12). The clamping member (23) is fixedly connected to the rotating shaft (22); An induction assembly (3), including an induction member (31) and a locking member (32). The induction member (31) is located at the bottom of the hoisting arm (12). One end of the locking member (32) is connected to the induction member (31), and the other end is connected to the rotating seat (21) to lock the rotation of the rotating shaft (22).

2. The clamping and hoisting device for the door conveyor line in the general assembly workshop of new energy vehicles according to claim 1, wherein: The clamping member (23) includes a clamping seat (231), clamping claws (232) and a buffer portion (233). The clamping seat (231) is fixedly connected to the rotating shaft (22). The clamping claws (232) are slidably connected to the clamping seat (231). The buffer portion (233) is installed in the clamping seat (231), and the buffer portion (233) is connected to the clamping claws (232).

3. The clamping and lifting device for the door conveying line in the general assembly workshop of new energy vehicles according to claim 2, characterized in that: A plurality of the clamping claws (232) are provided on the same clamping seat (231). The buffer portion (233) includes a main balance rod (2331), a secondary balance rod (2332), a slave balance rod (2333), and a buffer spring (2334). The middle parts of the main balance rod (2331) and the secondary balance rod (2332) are hinged to the clamping seat (231), and one end of the main balance rod (2331) abuts against the secondary balance rod (2332). A plurality of slave balance rods (2333) are provided, and the middle part of each balance rod is hinged to the main balance rod (2331) or the secondary balance rod (2332). The shortest distance from the middle part of each slave balance rod (2333) to the middle part of the main balance rod (2331) or the secondary balance rod (2332) is equal. The clamping claws (232) abut against both ends of the slave balance rods (2333) one by one, and the buffer spring (2334) is sleeved on the clamping claws (232). One end of the buffer spring (2334) is fixedly connected to the clamping claw (232) near one end of the slave balance rod (2333), and the other end abuts against the inner wall of the clamping seat (231).

4. A door conveying line clamping and hoisting device for a new energy vehicle general assembly workshop according to claim 1, characterized in that: The two rotating seats (21) are at the same height of the lifting arm (12).

5. A door conveying line clamping and hoisting device for a new energy vehicle general assembly workshop according to claim 1, characterized in that: An installation groove (4) is formed in the rotating seat (21), and the rotating shaft (22) is inserted into the installation groove (4).

6. The clamping and lifting device for the door conveying line in the general assembly workshop of new energy vehicles according to claim 1, characterized in that: The sensing member (31) includes a pressure-receiving portion (311), a return spring (312), and a connecting rod (313). The pressure-receiving portion (311) is slidably connected to the bottom of the lifting arm (12) in the vertical direction. One end of the return spring (312) is fixedly connected to the lifting arm (12), and the other end is fixedly connected to the pressure-receiving portion (311). One end of the connecting rod (313) is fixedly connected to the pressure-receiving portion (311), and the other end is fixedly connected to the locking member (32).

7. The clamping and lifting device for the door conveying line in the general assembly workshop of new energy vehicles according to claim 6, characterized in that: The locking member (32) includes a locking block (321). The locking block (321) is fixedly connected to the connecting rod (313). A locking groove (6) is formed in the rotating shaft (22), and the locking groove (6) is located on the movement path of the locking block (321).

8. The clamping and hoisting device for the door conveying line in the general assembly workshop of new energy vehicles according to claim 6, characterized in that: A sliding hole (7) is formed in the lifting arm (12) in the vertical direction. The pressure-receiving portion (311) includes a force-receiving shaft (3111) and a pressure-receiving wheel (3112). The force-receiving shaft (3111) is rotatably connected to the sliding hole (7), and the pressure-receiving wheel (3112) is rotatably connected to the force-receiving shaft (3111), and the diameter of the pressure-receiving wheel (3112) is larger than the width of the lifting arm (12).

9. The clamping and lifting device for the door conveyor line in the general assembly workshop of new energy vehicles according to claim 8, characterized in that: The pressure-receiving wheel (3112) includes a contact wheel (8) and a limiting disc (9). The contact wheel (8) and the limiting disc (9) are both sleeved on the force-receiving shaft (3111), and the diameter of the contact wheel (8) is smaller than the diameter of the limiting disc (9). Two limiting discs (9) are provided, and the contact wheel (8) is located between the two limiting discs (9).

10. The clamping and lifting device for the door conveying line in the general assembly workshop of new energy vehicles according to claim 1, characterized in that: The control member (13) includes a locking box (131) and a locking seat (132). Two oppositely arranged guiding seats (133) are fixedly connected inside the locking box (131). A locking rod (134) is slidably connected vertically inside the guiding seat (133). One end of the locking rod (134) passes through the locking box (131), and a locking head (135) is fixedly connected to the end portion passing through the locking box (131). The horizontal cross-section of the locking head (135) is rectangular. A guiding rod (136) is fixedly connected to one end of the locking head (135) located in the locking box (131). The guiding rod (136) is located between the two mutually arranged guiding seats (133), such that each time the locking rod (134) expands and contracts, the guiding rod (136) drives the locking rod (134) to rotate 90°. The locking seat (132) is fixedly connected to the hinge joint of the two lifting arms (12). A locking plate (137) is fixedly connected to the locking seat (132). A locking hole (138) is formed in the locking plate (137). The width of the opening of the locking hole (138) is smaller than the length of the locking head (135).

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