An automobile outer shell assembly structure

Abstract

The present application relates to hot melt processing technical field, and relates to a car shell assembly structure.The present application carries out once hot melt welding on the shell on the hot melt fixture through the welding assembly, the transfer manipulator drives the transfer gripper to carry the once hot melt welded shell on the hot melt welding mechanism to the nut hot melt mechanism for nut hot melt welding, the transfer manipulator carries the shell that completes nut hot melt to the assembly mechanism, the turntable drives the shell that completes nut hot melt to rotate and make it pass through the attached assembly to attach the foam block, the pressure maintaining assembly carries out pressure maintaining treatment to the shell, and the blanking assembly carries out blanking to the shell that completes assembly, can accurately hot melt processing to the car shell, realizes the secondary hot melt processing to the shell to be processed through the cooperation of the nut hot melt mechanism and the hot melt welding mechanism, has high degree of automation and production efficiency.

Description

A car body assembly structure Technical Field

[0001] This invention relates to the field of hot melt processing technology, and specifically to an automotive body assembly structure. Background Technology

[0002] Automotive parts, as the foundation of the automotive industry, are essential for its continued healthy development. Independent vehicle brands and technological innovation rely on parts as a foundation, while independent innovation in parts, in turn, strongly drives the development of the entire vehicle industry. They are mutually influential and interactive. Since a vehicle's outer shell is divided into multiple parts, these components need to be connected. Nut connection is a common method, typically using thermoforming nut insertion. Simultaneously, some shells with reflectors or other accessories require the reflectors and other accessories to be thermofused onto the outer shell. These two processes are generally carried out separately, requiring multiple people to operate on different machines, resulting in wasted time and manpower. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an automotive shell assembly structure that can accurately perform hot-melt processing on automotive shells, realize secondary hot-melt processing of the shells to be processed, and has a high degree of automation and production efficiency.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0005] A car body assembly structure, comprising:

[0006] A hot melt welding mechanism includes a hot melt fixture and a welding assembly. The hot melt fixture is provided with a positioning groove for placing a housing. The welding assembly is disposed above the hot melt fixture and is used to perform hot melt welding on the housing on the hot melt fixture.

[0007] A nut hot-melt mechanism includes a positioning fixture and a hot-melt assembly. The positioning fixture is provided with a fixing groove for placing a shell that has completed hot-melt welding. The hot-melt assembly is disposed above the positioning fixture and is used to perform multi-point nut hot-melt welding on the shell that has completed hot-melt welding.

[0008] The transfer mechanism includes a transfer manipulator, which is driven to a transfer gripper. The transfer manipulator drives the transfer gripper to move the housing on the hot melt welding mechanism to the nut hot melt mechanism for nut hot melt, or to transfer the housing after nut hot melt to the assembly mechanism for foam block assembly.

[0009] The assembly mechanism includes a turntable, around which are arranged an attachment component, a pressure holding component, and a material unloading component. The turntable drives the housing after the nut has been heat-melted to rotate so that it passes through the attachment component to attach foam blocks, the pressure holding component to hold the housing under pressure, and the material unloading component unloads the assembled housing.

[0010] Furthermore, the transfer gripper includes a transfer frame, on which two transfer components are symmetrically arranged. Each transfer component includes a transfer plate, on which multiple material-picking rods are evenly arranged, and each material-picking rod is equipped with a material-picking suction cup.

[0011] Furthermore, the welding assembly includes a welding frame, a welding driver is provided on the welding frame, a lifting frame is slidably mounted on the welding frame, the welding driver is drivenly connected to the lifting frame, a heat insulation frame is provided on the lifting frame, a heater is provided on the heat insulation frame, and a hot melt head is provided on the heater;

[0012] Guide rods are installed at the four corners of the lifting frame. The guide rods are connected to the pressure plate. The pressure plate is located below the hot melt head and has clearance holes that match the hot melt head. A spring is sleeved on the guide rod. One end of the spring abuts against the pressure plate and the other end abuts against the lifting frame. The welding driver is used to drive the lifting frame to move toward the housing, so that after the pressure plate presses the housing, the hot melt head performs hot melt welding on the housing.

[0013] Furthermore, the hot melt fixture includes a fixture plate, the positioning groove is disposed on the fixture plate, the fixture plate is disposed on a slide plate, the slide plate is slidably disposed on a hot melt slide rail, the slide plate is driven to be connected to a moving driver, and the moving driver drives the fixture plate on the slide plate to reciprocate along the hot melt slide rail for conveying the housing.

[0014] Furthermore, the positioning fixture includes multiple positioning blocks, which surround a positioning frame for loading the housing. The fixing groove is disposed on the positioning frame, and the positioning frame is provided with a positioning protrusion or positioning recess that matches the shape of the housing. Pressing cylinders are disposed on both sides of the positioning frame, and the pressing cylinders are drivenly connected to the pressing blocks. The pressing cylinders drive the pressing blocks to press the housing onto the positioning frame.

[0015] Furthermore, the hot-melt assembly includes a hot-melt robot arm, on which a hot-melt frame is mounted, a pusher frame slides on the hot-melt frame, a pusher rod is mounted on the pusher frame, and a pusher driver is mounted on the hot-melt frame, the pusher driver being drivenly connected to the pusher frame;

[0016] The bottom of the hot melt frame is provided with a heating element, a discharge pipe is provided on the heating element, a switching element is provided on the heating element, and a feed pipe is provided at the bottom of the heating element. The feed pipe is arranged opposite to the switching element. The feed pipe feeds the nut to the switching element, and the switching element transfers the nut to the discharge pipe. The pusher drive drives the pusher rod to pass through the discharge pipe and push the heated nut out of the discharge pipe and hot melt weld it to the housing.

[0017] Furthermore, the attachment assembly includes an attachment robot and a foam feeding component. The attachment robot is equipped with a material picking component, which drives the material picking component to grab the foam block on the foam feeding component and place the foam block on the housing located on the turntable.

[0018] Furthermore, the pressure holding assembly includes a pressure holding bracket, a pressure holding plate slidably mounted on the pressure holding bracket, a pressure holding cylinder mounted on the pressure holding bracket, the pressure holding cylinder being drivenly connected to the pressure holding plate, and a pressure holding block matching the foam block being mounted on the pressure holding plate. The pressure holding cylinder drives the pressure holding block on the pressure holding plate to press the foam block tightly onto the housing for pressure holding.

[0019] Furthermore, there are two nut heat-melting mechanisms, and each nut heat-melting mechanism is arranged in a one-to-one correspondence with a transfer mechanism. A transition mechanism is provided between the two nut heat-melting mechanisms. The transition mechanism is used to place the unprocessed shell or the shell that needs to be processed.

[0020] Furthermore, the transition mechanism includes a transition frame, on which a transition driver is provided. The transition driver is driven to the transition plate. The transition frame is provided with a transition guide rail. The transition plate is slidably mounted on the transition guide rail. The transition plate is provided with a positioning protrusion for positioning the housing. The transition driver drives the transition plate to reciprocate along the transition guide rail.

[0021] The beneficial effects of this invention are:

[0022] This invention involves performing a first-stage hot-melt welding on the shell of a hot-melt fixture using a welding assembly. A transfer robot then moves the welded shell from the hot-melt welding mechanism to a nut hot-melt welding mechanism for nut hot-melt welding. The robot then transfers the shell with the completed nut hot-melt welding to an assembly mechanism. A turntable rotates the shell, allowing it to pass through an attachment assembly to attach foam blocks. A pressure-holding assembly then applies pressure to the shell. Finally, a material unloading assembly unloads the assembled shell. This method enables accurate hot-melt processing of automotive shells. Through the cooperation of the nut hot-melt welding mechanism and the nut hot-melt welding mechanism, a second hot-melt processing of the shell to be processed is achieved, resulting in high automation and production efficiency. Attached Figure Description

[0023] Figure 1 is a schematic diagram of an automotive shell assembly structure according to the present invention.

[0024] Figure 2 is a schematic diagram of the hot melt welding mechanism of the present invention.

[0025] Figure 3 is a schematic diagram of the welding assembly of the present invention.

[0026] Figure 4 is a schematic diagram of the transition mechanism of the present invention.

[0027] Figure 5 is a schematic diagram of the transfer gripper of the present invention.

[0028] Figure 6 is a schematic diagram of the nut hot-melting mechanism of the present invention.

[0029] Figure 7 is a schematic diagram of the hot melt assembly of the present invention.

[0030] Figure 8 is a schematic diagram of the switching component of the present invention.

[0031] Figure 9 is a schematic diagram of the foam feeding component of the present invention.

[0032] Figure 10 is a schematic diagram of the pressure-holding component of the present invention.

[0033] Figure 11 is a schematic diagram of the material handling component of the present invention.

[0034] Figure 12 is a schematic diagram of the feeding assembly of the present invention.

[0035] The following are the labeling instructions in the diagram: 1. Hot melt welding mechanism; 2. Welding assembly; 21. Welding frame; 22. Welding actuator; 23. Lifting frame; 24. Hot melt head; 25. Pressure plate; 26. Heat insulation frame; 27. Heater; 28. Guide rod; 29. ​​Spring; 291. Clearance hole; 3. Hot melt fixture; 31. Fixture plate; 32. Hot melt slide rail; 33. Movement actuator; 4. Nut hot melt mechanism; 41. Nut feeding component; 42. Transfer pipe; 43. Transfer robot; 44. 45. Material conveyor belt; 5. Hot melt robot; 5. Hot melt assembly; 51. Hot melt frame; 52. Pusher driver; 521. Pusher frame; 53. Pusher rod; 54. Feed pipe; 55. Heating component; 46. Discharge pipe; 47. Switching frame; 48. Switching cylinder; 49. Sliding groove; 491. Switching plate; 492. Nut feed hole; 493. Push hole; 494. First hole; 495. Hot melt nut; 496. Second hole; 6. Positioning fixture; 61. Positioning block; 62. 63. Positioning frame; 64. Pressing cylinder; 7. Pressing block; 8. Housing; 9. Transfer gripper; 10. Transfer frame; 11. Transfer plate; 12. Picking rod; 13. Picking suction cup; 14. Transition mechanism; 15. Transition frame; 16. Transition driver; 17. Transition guide rail; 18. Transition plate; 19. Turntable; 10. Machining fixture; 11. Attaching robot; 12. Picking component; 13. Picking bracket; 13. Picking plate; 13. Rotary wheel; 13. Lifting bracket; 135. 136. Synchronous belt; 137. Fixing block; 138. Material picking support rod; 14. Foam suction cup; 15. Foam feeding component; 16. Feeding rack; 17. Feeding roller; 18. Receiving roller; 19. Material belt; 10. Separating plate; 10. Receiving platform; 11. Pressure holding assembly; 12. Pressure holding bracket; 133. Pressure holding plate; 144. Pressure holding cylinder; 155. Pressure holding block; 16. Unloading assembly; 17. Unloading rack; 18. Unloading robot; 19. Unloading suction cup. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0037] Referring to Figure 1, an automotive body assembly structure includes:

[0038] The hot melt welding mechanism 1 includes a hot melt fixture 3 and a welding assembly 2. The hot melt fixture 3 is provided with a positioning groove for placing the housing 7. The welding assembly 2 is disposed above the hot melt fixture 3 and is used to perform hot melt welding on the housing 7 on the hot melt fixture 3.

[0039] The nut hot-melt mechanism 4 includes a positioning fixture 6 and a hot-melt assembly 5. The positioning fixture 6 is provided with a fixing groove for placing the shell 7 that has completed hot-melt welding. The hot-melt assembly 5 is disposed above the positioning fixture 6 and is used to perform multi-point nut hot-melt welding on the shell 7 that has completed hot-melt welding.

[0040] The transfer mechanism includes a transfer robot 43, which is driven to connect with a transfer gripper 8. The transfer robot 43 drives the transfer gripper 8 to move the housing 7 on the hot melt welding mechanism 1 to the nut hot melt mechanism 4 for nut hot melt or to transfer the housing 7 after nut hot melt to the assembly mechanism for foam block assembly.

[0041] The assembly mechanism includes a turntable 10. Around the turntable 10 are an attachment component, a pressure holding component 15, and a material unloading component 16. The turntable 10 drives the housing 7, which has completed the nut heat fusion, to rotate so that it passes through the attachment component to attach foam blocks, the pressure holding component 15 to hold the housing 7 under pressure, and the material unloading component 16 unloads the assembled housing 7.

[0042] This invention involves performing a first-stage hot-melt welding on the housing 7 on the hot-melt fixture 3 using the welding assembly 2. Then, the transfer robot 43, driven by the transfer gripper 8, moves the housing 7, after the first-stage hot-melt welding on the hot-melt welding mechanism 1, to the nut hot-melt mechanism 4 for nut hot-melt welding. The transfer robot 43 then transfers the housing 7 with the completed nut hot-melt welding to the assembly mechanism. The turntable 10 rotates the housing 7 with the completed nut hot-melt welding, causing it to pass through the attachment assembly to attach foam blocks. After the pressure holding assembly 15 performs pressure holding treatment on the housing 7, the unloading assembly 16 unloads the assembled housing 7. This allows for accurate hot-melt processing of the car housing 7. Through the cooperation of the nut hot-melt mechanism 4 and the hot-melt welding mechanism 1, a second hot-melt processing of the housing 7 to be processed is achieved, resulting in a high degree of automation and production efficiency.

[0043] Referring to Figure 5, the transfer gripper 8 further includes a transfer frame 81, on which two transfer components are symmetrically arranged. Each transfer component includes a transfer plate 82, on which a plurality of material picking rods 83 are evenly arranged, and on which material picking rods 83 are material picking suction cups 84.

[0044] Specifically, the transfer robot 43 drives the transfer gripper 8 to move the housing 7 between the hot melt welding mechanism 1, the nut hot melt mechanism 4, and the assembly mechanism. This reduces labor costs, avoids personal safety accidents, ensures stable product quality, and meets the needs of mass production. The material handling rod 83 is equipped with a material handling suction cup 84, which can prevent the robot from damaging the housing 7 or leaving scratches that would render the part unusable. This effectively ensures the integrity of the part during the gripping process, allowing the part to be used intact.

[0045] Referring to FIG3, the welding assembly 2 further includes a welding frame 21, a welding driver 22 is provided on the welding frame 21, a lifting frame 23 is slidably provided on the welding frame 21, the welding driver 22 is drivenly connected to the lifting frame 23, a heat insulation frame 26 is provided on the lifting frame 23, a heater 27 is provided on the heat insulation frame 26, and a hot melt head 24 is provided on the heater 27;

[0046] Guide rods 28 are provided at the four corners of the lifting frame 23. The guide rods 28 are connected to the pressure plate 25. The pressure plate 25 is located below the hot melt head 24 and has clearance holes 291 that match the hot melt head 24. A spring 29 is sleeved on the guide rods 28. One end of the spring 29 abuts against the pressure plate 25 and the other end abuts against the lifting frame 23. The welding driver 22 is used to drive the lifting frame 23 to move toward the housing 7, so that after the pressure plate 25 presses the housing 7, the hot melt head 24 performs hot melt welding on the housing 7.

[0047] Specifically, the welding driver 22 drives the lifting frame 23 to move towards the housing 7, so that the pressure plate 25 first presses against the housing 7, making the parts tightly adhere to the welding position. The welding driver 22 drives the lifting frame 23 to continue moving towards the housing 7, so that the lifting frame 23 compresses the spring 29, ensuring that the pressure plate 25 presses the housing 7 and the parts evenly, enhancing the welding accuracy. The hot melt head 24 passes through the clearance hole 291 and contacts the welding position on the housing 7 to complete the hot melt welding of the housing 7 and the parts. Multiple points can be welded at the same time, making the welding strength consistent, greatly reducing the welding time, and enhancing the quality and aesthetics of the welded products.

[0048] Furthermore, the hot melt fixture 3 includes a fixture plate 31, the positioning groove is disposed on the fixture plate 31, the fixture plate 31 is disposed on a sliding plate, the sliding plate is slidably disposed on the hot melt slide rail 32, the sliding plate is drivenly connected to a moving driver 33, and the moving driver 33 drives the fixture plate 31 on the sliding plate to reciprocate along the hot melt slide rail 32 to transport the housing 7.

[0049] Specifically, the mobile driver 33 drives the jig plate 31 on the slide to reciprocate along the hot melt slide rail 32 to transport the housing 7. That is, the mobile driver 33 drives the housing 7 on the jig plate 31 to switch and transfer from the housing 7 loading position, the welding assembly 2 and the transfer loading position, thereby increasing the flow speed of the hot melt housing 7 and improving the processing efficiency.

[0050] Referring to Figure 2, the positioning fixture 6 further includes a plurality of positioning blocks 61, which surround a positioning frame 62 for loading the housing 7. The fixing groove is provided on the positioning frame 62. The positioning frame 62 is provided with a positioning protrusion or positioning recess that matches the shape of the housing 7. A pressing cylinder 63 is provided on both sides of the positioning frame 62. The pressing cylinder 63 is drivenly connected to the pressing block 64. The pressing cylinder 63 drives the pressing block 64 to press the housing 7 onto the positioning frame 62.

[0051] Specifically, the shell 7, which has completed hot-melt welding, is placed onto the positioning frame 62 by the transfer robot 43. The pressing cylinder 63 drives the pressing block 64 to press the shell 7 onto the positioning frame 62, thus clamping the shell 7 and ensuring the positioning effect of the shell 7. The positioning protrusion or positioning recess provided on the positioning frame 62 can position different types of shells 7, improving the applicability of the device.

[0052] Referring to FIG7, the hot melt assembly 5 further includes a hot melt robot 45, a hot melt frame 51 is provided on the hot melt robot 45, a pusher frame 521 is slidably provided on the hot melt frame 51, a pusher rod 53 is provided on the pusher frame 521, and a pusher driver 52 is provided on the hot melt frame 51, and the pusher driver 52 is drivenly connected to the pusher frame 521;

[0053] A heating element 55 is provided at the bottom of the hot melt frame 51. A discharge pipe 46 is provided on the heating element 55. A switching element is provided on the heating element 55. A feed pipe 54 is provided at the bottom of the heating element 55. The feed pipe 54 is arranged opposite to the switching element. The feed pipe 54 feeds the nut to the switching element. The switching element transfers the nut to the discharge pipe 46. The pusher driver 52 drives the pusher rod 53 to pass through the discharge pipe 46 and push the heated nut out of the discharge pipe 46 for hot melt welding onto the housing 7.

[0054] Specifically, the feed pipe 54 transmits the nut to the heating component 55, the switching component transmits the nut to the discharge pipe 46, and the pusher driver 52 drives the pusher rod 53 to pass through the discharge pipe 46 to push the heated nut out of the discharge pipe 46 and heat-melt weld it to the housing 7. The nut passes through the discharge pipe 46. It has high precision, fast speed, and accurate positioning, which improves production quality and efficiency and ensures the heat-melting efficiency and quality of the nut.

[0055] Referring to Figure 8, the heating component 55 is provided with a nut inlet hole 492 and a pusher hole 493 for passing through the pusher rod 53. The pusher hole 493 and the discharge pipe 46 are on the same center line, which facilitates the reciprocating movement of the pusher rod 53 on the discharge pipe 46.

[0056] The switching component includes a switching cylinder 48, a switching frame 47 is provided on the pusher frame 521, the switching cylinder 48 is provided on the switching frame 47, a switching plate 491 is provided at the piston rod end of the switching cylinder 48, a sliding groove 49 matching the switching plate 491 is provided on the heating component 55, the switching plate 491 is slidably disposed on the sliding groove 49, the sliding groove 49 is connected to the nut feed hole 492, the push hole 493 and the discharge pipe 46, and the switching cylinder 48 drives the switching plate 491 to reciprocate on the sliding groove 49;

[0057] The switching plate 491 is provided with a first hole 494 and a second hole 496. The first hole 494 is opposite to the nut feed hole 492. The second hole 496 is located between the push hole 493 and the discharge pipe 46. The hot-melt nut 495 enters the nut feed hole 492 through the feed pipe 54 and falls onto the first hole 494. The switching cylinder 48 drives the switching plate 491 to move towards the discharge pipe 46 until the first hole 494, the push hole 493, and the discharge pipe 46 are on the same center line. At this time, the nut is located between the push hole 493 and the discharge pipe 46. The push driver 52 drives the push rod 53 to pass through the push hole 493 and push the nut on the first hole 494 onto the discharge pipe 46 until the heated nut is pushed out of the discharge pipe 46 and hot-melt welded onto the housing 7, thus completing the hot-melt welding of the nut.

[0058] Specifically, the pusher driver 52 drives the pusher rod 53 to pass through the pusher hole 493, pushing the nut on the first hole 494 to the discharge pipe 46 until the heated nut is pushed out of the discharge pipe 46 and heat-melted welded to the housing 7, completing the heat-melt welding of the nut. This enables rapid nut transfer, offers good flexibility, is easy to operate, improves discharge efficiency, and reduces initial investment costs. The switching cylinder 48 drives the switching plate 491 to reciprocate on the sliding groove 49. Its structure is compact, economical, practical, and occupies little space.

[0059] The pusher driver 52 drives the switching plate 491 to move, which reduces the complexity of the nut transmission structure and helps to rationalize the overall structure of the hot melt machine.

[0060] The turntable 10 is provided with a loading station, an attaching station, a pressure holding station, and a unloading station. Each of the loading station, attaching station, pressure holding station, and unloading station is provided with a processing fixture 11 for placing the shell 7 after nut welding. The processing fixture 11 is provided with a limiting groove for positioning the shell 7. The turntable 10 is driven by a rotary driver, which drives the turntable 10 to rotate, so that the shell 7 on the processing fixture 11 is processed one by one at the loading station, attaching station, pressure holding station, and unloading station.

[0061] Specifically, the rotary driver drives the turntable 10 to rotate, causing the housing 7 with the foam block attached to rotate sequentially to the attachment station, the pressure holding station, and the unloading station. The attachment mechanism attaches the foam block to the housing 7, and the housing 7 with the foam block attached is pressure-held by the pressure holding mechanism, which allows the car body 7 to be quickly bonded to the foam block. The degree of automation is high. By holding the pressure for a certain period of time, the bonding is more stable and tighter, which can improve work efficiency and reduce errors. The unloading component 16 adopts automated means to achieve unloading without stopping the machine, thereby improving the production efficiency of the equipment.

[0062] Referring to FIG9, the attachment assembly further includes an attachment robot 12 and a foam feeding component 14. The attachment robot 12 is provided with a material picking component 13. The attachment robot 12 drives the material picking component 13 to grab the foam block on the foam feeding component and place the foam block on the housing 7 located on the turntable 10.

[0063] The foam feeding component includes a feeding rack 141, on which a feeding plate is provided. The feeding plate is connected to a separating plate 145. A receiving platform 146 is provided on the feeding rack 141. A separation gap is provided between the receiving platform 146 and the separating plate 145. A receiving roller 143 and a discharging roller 142 are provided on the feeding rack 141. The receiving roller 143 is driven and connected to a receiving motor. The discharging roller 142 discharges the material strip 144 with foam blocks attached to it onto the separating plate 145. The receiving motor drives the receiving roller 143 to rotate, causing it to pull the material strip 144 on the separating plate 145 through the separation gap to separate the foam blocks onto the receiving platform 146.

[0064] Specifically, the feeding roller 142 feeds the material strip 144 with foam blocks attached onto the separating plate 145. The receiving motor drives the receiving roller 143 to rotate, which pulls the material strip 144 on the separating plate 145 through the separation gap to separate the foam blocks onto the receiving table 146. This effectively saves manpower and foam block loading time, enables rapid material supply, and greatly improves processing efficiency.

[0065] Referring to Figure 11, the material picking component 13 is mounted on the material picking bracket 131, and includes a material picking plate 132. Two rotating wheels 133 are mounted at both ends of the material picking plate 132 and connected by a synchronous belt 135. One of the rotating wheels 133 is connected to a motor drive. A lifting bracket 134 is mounted on the synchronous belt 135, and a fixing block 136 is mounted on the lifting bracket 134. A material picking support rod 137 is mounted on the fixing block 136, and a foam suction cup 138 is mounted on the material picking support rod 137. The motor drives the rotating wheel 133 to rotate, causing the lifting bracket 134 on the synchronous belt 135 to move downwards, thereby driving the foam suction cup 138 on the fixing block 136 to pick up the foam block.

[0066] Specifically, the foam suction cup 138 on the fixing block 136 picks up the foam block, ensuring the stability of the position of the foam suction cup 138, solving the problem of low work efficiency of manually attaching foam blocks. The foam suction cup 138 can pick up various types of foam blocks and has a wide range of applications.

[0067] Referring to FIG10, the pressure holding assembly 15 further includes a pressure holding bracket 151, a pressure holding plate 152 slidably mounted on the pressure holding bracket 151, a pressure holding cylinder 153 mounted on the pressure holding bracket 151, the pressure holding cylinder 153 being drivenly connected to the pressure holding plate 152, and a pressure holding block 154 matching the foam block being mounted on the pressure holding plate 152. The pressure holding cylinder 153 drives the pressure holding block 154 on the pressure holding plate 152 to press the foam block tightly onto the housing 7 for pressure holding.

[0068] Specifically, the pressure-holding cylinder 153 drives the pressure-holding block 154 on the pressure-holding plate 152 to press the foam block onto the housing 7 for pressure holding. After holding the pressure for a period of time, the assembly of the housing 7 and the foam block can be completed. It can simultaneously hold and press the housing 7 on the turntable 10, saving time and effort and improving production efficiency. The pressure-holding block 154 can ensure the pressing force and the pressure holding effect.

[0069] Referring to Figure 12, the unloading assembly 16 includes an unloading rack 161, an unloading robot 162 is mounted on the unloading rack 161, an unloading bracket is mounted on the unloading robot 162, and an unloading suction cup 163 is mounted on the unloading bracket. An unloading conveyor belt 44 is mounted on one side of the assembly mechanism. After the unloading robot 162 drives the unloading suction cup 163 to pick up the pressure-held housing 7, it is transported to the unloading conveyor belt 44 under the drive of the unloading robot 162. The unloading conveyor belt 44 transports the assembled housing 7 to the next process.

[0070] Specifically, the assembly shell 7 is transported to the unloading conveyor belt 44 by the unloading robot 162. The unloading conveyor belt 44 then transports the assembled shell 7 to the next process. By using automated means, unloading can be carried out without stopping the machine, thereby improving the production efficiency of the equipment. By setting the unloading conveyor belt 44 on one side of the assembly mechanism, the limited space can be fully utilized, making the overall equipment compact and aesthetically pleasing.

[0071] Referring to Figure 1, there are two nut heat-melting mechanisms 4, and each nut heat-melting mechanism 4 is arranged in a one-to-one correspondence with a transfer mechanism. A transition mechanism 9 is provided between the two nut heat-melting mechanisms 4. The transition mechanism 9 is used to place the unprocessed shell 7 or the shell 7 that needs to be processed.

[0072] Specifically, the transition mechanism 9 is used to place the unprocessed housing 7 or the housing 7 that requires secondary processing, ensuring that the workpiece can be accurately and smoothly transferred between the two nut heat-melting mechanisms 4 without manual transfer, and has good versatility.

[0073] Referring to FIG4, the transition mechanism 9 further includes a transition frame 91, on which a transition driver 92 is provided. The transition driver 92 is drivenly connected to the transition plate 94. The transition frame 91 is provided with a transition guide rail 93. The transition plate 94 is slidably mounted on the transition guide rail 93. The transition plate 94 is provided with a positioning protrusion for positioning the housing 7. The transition driver 92 drives the transition plate 94 to reciprocate along the transition guide rail 93.

[0074] Specifically, the housing 7 that has completed one nut hot-melt welding is placed on the transition plate 94. The transition driver 92 drives the transition plate 94, which carries the housing 7 that has completed one nut hot-melt welding, to another nut hot-melt mechanism 4. This ensures that the workpiece can be accurately and smoothly transferred between the two nut hot-melt mechanisms 4 without manual transfer, effectively reducing the labor intensity of workers and improving production efficiency.

[0075] Usage process

[0076] The housing 7 to be processed is placed on the positioning groove of the hot melt fixture 3, and the accessories (plastic or iron parts) to be hot melt welded are placed on the housing 7. The moving driver 33 drives the housing 7 on the fixture plate 31 to move along the hot melt slide rail 32 to below the welding assembly 2. The welding driver 22 drives the lifting frame 23 to move toward the housing 7, so that the pressure plate 25 first presses against the housing 7, so that the accessories are close to the welding position. The welding driver 22 drives the lifting frame 23 to continue to move toward the housing 7, so that the lifting frame 23 compresses the spring 29, ensuring that the pressure plate 25 presses the housing 7 and accessories evenly. The hot melt head 24 passes through the clearance hole 291 and contacts the welding position on the housing 7 to complete the hot melt welding of the housing 7 and accessories. After the hot melt welding is completed, the welding driver 22 drives the lifting frame 23 to move away from the housing 7, and the moving driver 33 drives the housing 7 on the fixture plate 31 to move from below the welding assembly 2 to the transfer and loading position.

[0077] The transfer robot 43 drives the transfer gripper 8 to move towards the shell 7 that has completed hot-melt welding, so that the material-grabbing suction cup 84 on the transfer plate 82 adsorbs and grabs the shell 7 on the positioning groove. Under the action of the transfer robot 43, the shell 7 that has completed hot-melt welding is placed onto the positioning frame 62. The pressing cylinder 63 drives the pressing block 64 to press the shell 7 firmly onto the positioning frame 62. After that, the hot-melt robot 45 drives the hot-melt frame 51 to move towards the shell 7. The nut feeding component 41 feeds the nuts one by one into the feed pipe 54 through the transmission pipe 42. The pusher driver 52 drives the pusher rod 53 to pass through the heating element. On component 55, the nut enters the nut feed hole 492 through the feed pipe 54 and falls onto the first hole 494. The switching cylinder 48 drives the switching plate 491 to move toward the discharge pipe 46 until the first hole 494, the push hole 493, and the discharge pipe 46 are on the same center line. At this time, the nut is located between the push hole 493 and the discharge pipe 46. The push driver 52 drives the push rod 53 to pass through the push hole 493 and push the nut on the first hole 494 onto the discharge pipe 46 until the heated nut is pushed out of the discharge pipe 46 and heat-melted welded onto the housing 7, thus completing the heat-melting welding of the nut.

[0078] After the nut welding of the housing 7 is completed, the pressing cylinder 63 drives the pressing block 64 away from the housing 7. The material-picking suction cup 84 on the transfer plate 82 picks up the housing 7 on the positioning frame 62. Under the drive of the transfer robot 43, the housing 7 with the nut welding completed is placed onto the processing fixture 11 located at the loading station of the turntable 10. The rotary driver drives the turntable 10 to rotate, causing the processing fixture 11 to rotate to the attachment station. The attachment robot 12 drives the material-picking suction cup 84 to pick up the foam block on the docking table 146. Under the drive of the attachment robot 12, the foam block is attached to the housing 7.

[0079] The rotary driver drives the turntable 10 to rotate, causing the housing 7 with the foam block attached to rotate to the pressure holding station. The pressure holding cylinder 153 drives the pressure holding block 154 on the pressure holding plate 152 to press the foam block onto the housing 7 for pressure holding. After a period of pressure holding, the rotary driver drives the turntable 10 to rotate, causing the pressure-held housing 7 to rotate to the unloading station. Driven by the unloading robot 162, it is transported to the unloading conveyor belt 44. The unloading conveyor belt 44 transports the assembled housing 7 to the next process.

[0080] When the housing 7 requires secondary nut hot-melt welding, the transfer robot 43 located on one side of the hot-melt welding mechanism 1 drives the material suction cup 84 to pick up the housing 7 on the positioning frame 62 and place the housing 7 that has completed the first nut hot-melt welding on the transition plate 94. The transition driver 92 drives the transition plate 94 carrying the housing 7 that has completed the first nut hot-melt welding to another nut hot-melt mechanism 4. The transfer robot 43 located on one side of the nut hot-melt mechanism 4 drives the material suction cup 84 to transfer the housing 7 that has completed the first nut hot-melt welding on the transition plate 94 to the positioning frame 62 on the other nut hot-melt mechanism 4 for secondary nut hot-melt welding of the housing 7. After that, the transfer robot 43 located on one side of the nut hot-melt mechanism 4 transports the housing 7 that has completed the second nut hot-melt welding to the processing fixture 11 at the loading station of the turntable 10.

[0081] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A car body assembly structure, characterized in that, include: A hot-melt welding mechanism includes a hot-melt fixture and a welding assembly. The hot-melt fixture has a positioning groove for placing a housing. The welding assembly is positioned above the hot-melt fixture and is used to perform hot-melt welding on the housing on the hot-melt fixture. A nut hot-melt mechanism includes a positioning fixture and a hot-melt assembly. The positioning fixture has a fixing groove for placing a housing that has undergone hot-melt welding. The hot-melt assembly is positioned above the positioning fixture and is used to perform multi-point nut hot-melt welding on the housing that has undergone hot-melt welding. A transfer mechanism includes a transfer manipulator. The transfer manipulator is driven and connected to a transfer gripper. The transfer manipulator drives the transfer gripper to transport the housing from the hot-melt welding mechanism to the nut hot-melt mechanism. The process involves heat-melting a nut or transferring the heat-melted shell to an assembly mechanism for attaching foam blocks. The assembly mechanism includes a turntable surrounded by an attachment component, a pressure-holding component, and a feeding component. The turntable rotates the heat-melted shell, causing it to pass through the attachment component to attach foam blocks, the pressure-holding component to hold the shell under pressure, and the feeding component to unload the assembled shell. The heat-melting component includes a heat-melting robot arm with a heat-melting frame. A pusher frame slides on the heat-melting frame, with a pusher rod on the pusher frame and a pusher driver connected to the pusher frame. A heating element is located at the bottom of the heat-melting frame. The heating element is equipped with a discharge pipe and a switching component. A feed pipe is located at the bottom of the heating element and is positioned opposite the switching component. The feed pipe feeds nuts to the switching component, which then transfers the nuts to the discharge pipe. A pusher actuator drives a pusher rod through the discharge pipe to push the heated nuts out of the discharge pipe and heat-weld them to the housing. The switching component includes a switching cylinder. A switching frame is mounted on the pusher frame, and the switching cylinder is mounted on the switching frame. A switching plate is located at the piston rod end of the switching cylinder. The heating element has a sliding groove that matches the switching plate, and the switching plate slides on the sliding groove. The sliding groove is aligned with the nut feed... The hole, the push hole, and the discharge pipe are connected. The switching cylinder drives the switching plate to reciprocate on the sliding groove. The switching plate is provided with a first hole and a second hole. The first hole is opposite to the nut feed hole, and the second hole is located between the push hole and the discharge pipe. The hot-melt nut enters the nut feed hole through the feed pipe and falls onto the first hole. The switching cylinder drives the switching plate to move toward the discharge pipe until the first hole, the push hole, and the discharge pipe are on the same center line. At this time, the nut is located between the push hole and the discharge pipe. The push drive drives the push rod to pass through the push hole and push the nut on the first hole onto the discharge pipe until the heated nut is pushed out of the discharge pipe and hot-melted welded to the shell, thus completing the hot-melt welding of the nut.

2. The automotive body assembly structure as described in claim 1, characterized in that, The transfer gripper includes a transfer frame, on which two transfer components are symmetrically arranged. Each transfer component includes a transfer plate, on which multiple material picking rods are evenly arranged, and each material picking rod is equipped with a material picking suction cup.

3. The automotive body assembly structure as described in claim 1, characterized in that, The welding assembly includes a welding frame, a welding driver mounted on the welding frame, a lifting frame slidably mounted on the welding frame, the welding driver being drivenly connected to the lifting frame, a heat insulation frame mounted on the lifting frame, a heater mounted on the heat insulation frame, and a hot melt head mounted on the heater; guide rods are inserted through the four corners of the lifting frame, the guide rods being connected to a pressure plate, the pressure plate being positioned below the hot melt head, and the pressure plate having clearance holes matching the hot melt head; springs are sleeved on the guide rods, one end of the spring abutting against the pressure plate, and the other end abutting against the lifting frame; the welding driver is used to drive the lifting frame to move towards the housing, so that after the pressure plate presses the housing, the hot melt head performs hot melt welding on the housing.

4. The automotive body assembly structure as described in claim 1, characterized in that, The hot melt fixture includes a fixture plate, a positioning groove is disposed on the fixture plate, the fixture plate is disposed on a slide plate, the slide plate is slidably disposed on a hot melt slide rail, the slide plate is driven to be connected to a moving driver, and the moving driver drives the fixture plate on the slide plate to reciprocate along the hot melt slide rail for conveying the housing.

5. The automotive body assembly structure as described in claim 1, characterized in that, The positioning fixture includes multiple positioning blocks, which are arranged to form a positioning frame for loading the housing. The fixing groove is provided on the positioning frame. The positioning frame is provided with a positioning protrusion or positioning recess that matches the shape of the housing. Pressing cylinders are provided on both sides of the positioning frame. The pressing cylinders are driven and connected to the pressing blocks. The pressing cylinders drive the pressing blocks to press the housing onto the positioning frame.

6. The automotive body assembly structure as described in claim 1, characterized in that, The attachment assembly includes an attachment robot and a foam feeding component. The attachment robot is equipped with a material picking component. The attachment robot drives the material picking component to grab the foam block on the foam feeding component and place the foam block on the housing located on the turntable.

7. The automotive body assembly structure as described in claim 1, characterized in that, The pressure holding assembly includes a pressure holding bracket, a pressure holding plate slidably mounted on the pressure holding bracket, a pressure holding cylinder mounted on the pressure holding bracket, the pressure holding cylinder being drivenly connected to the pressure holding plate, and a pressure holding block matching the foam block mounted on the pressure holding plate. The pressure holding cylinder drives the pressure holding block on the pressure holding plate to press the foam block tightly onto the housing for pressure holding.

8. The automotive body assembly structure as described in claim 1, characterized in that, There are two nut heat-melting mechanisms, and each nut heat-melting mechanism is set up in a one-to-one correspondence with a transfer mechanism. A transition mechanism is set between the two nut heat-melting mechanisms. The transition mechanism is used to place the unprocessed shell or the shell that needs to be processed.

9. The automotive body assembly structure as described in claim 8, characterized in that, The transition mechanism includes a transition frame, on which a transition driver is mounted. The transition driver is driven to a transition plate. The transition frame is provided with a transition guide rail. The transition plate is slidably mounted on the transition guide rail. The transition plate is provided with a positioning protrusion for positioning the housing. The transition driver drives the transition plate to reciprocate along the transition guide rail.

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