A double-layer automatic connection tool and an assembling method using the same

Abstract

The application relates to the field of machining, in particular to a double-layer automatic connection tool and an assembly method applying the tool, which comprises a carrying assembly mechanism, a conveying mechanism and an accessory installation tool; the conveying mechanism comprises an assembly area and a blanking area; two groups of the accessory installation tools are respectively in transmission connection with the conveying mechanism, and in the vertical direction, the two groups of the accessory installation tools are arranged in a vertical direction staggered mode; the carrying assembly mechanism is located at the blanking end of the conveying mechanism and can be arranged opposite to the blanking area; through cooperation of the two groups of accessory installation tools arranged in the vertical direction staggered mode and the conveying mechanism, the upstream and downstream processes can be simultaneously carried out, that is, synchronous operation of the processing process at the carrying assembly mechanism and the manual assembly process at one side of the assembly area is realized, the overall beat is improved, and the assembly efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of machining, and more particularly to a double-layer automated assembly line fixture and an assembly method using the fixture. Background Technology

[0002] In the assembly process of workpiece accessories, taking the assembly of glass accessories as an example, various accessories need to be installed manually on the fixture base plate beforehand. Then, a robot arm picks up and transfers the glass onto the fixture base plate. Positioning fixtures are needed for positioning the glass during the pick-up and transfer process. The glass on the fixture base plate is then fitted with accessories through the cooperation of the robot arm and the motion mechanisms arranged on the fixture base plate. This assembly process is a single-station operation; that is, while the robot arm is assembling, the operator must wait for the robot arm to finish before proceeding to the next fixture base plate for accessory installation. Overall, the assembly efficiency is low, limiting production capacity. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a double-layer automated assembly line tooling that accelerates production cycle and improves assembly efficiency, and an assembly method using the tooling.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: a double-layer automated connection tooling, including a handling and assembly mechanism, a conveying mechanism, and an accessory installation tooling; the conveying mechanism includes an assembly area and a unloading area; two sets of accessory installation tooling are respectively connected to the conveying mechanism for transmission, and the two sets of accessory installation tooling are staggered in the vertical direction; the handling and assembly mechanism is located at the unloading end of the conveying mechanism and can be arranged opposite to the unloading area.

[0005] An assembly method is also provided for use in the aforementioned double-layer automated connection tooling: S1: The transport and assembly mechanism transports the workpiece to be assembled to the accessory installation fixture located in the unloading area; S2: The accessory installation fixtures in the unloading area enter the assembly area through the conveying mechanism to assemble the accessories on the accessory installation fixtures located in the assembly area. S3: After the accessory installation fixture is assembled, it enters the unloading area through the conveying mechanism and is then assembled on the accessory installation fixture by the handling and assembly mechanism. S4: The conveying and assembly mechanism will unload the workpiece after it has been assembled, and repeat S1 at the same time.

[0006] The beneficial effects of this invention are as follows: by cooperating with two sets of accessory installation fixtures and conveying mechanisms arranged in a vertically staggered manner, upstream and downstream processes can be carried out simultaneously, that is, the processing process at the handling and assembly mechanism and the manual assembly process on one side of the assembly area can be carried out synchronously, thereby improving the overall cycle time and assembly efficiency. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of the double-layer automated connection tooling according to a specific embodiment of the present invention; Figure 2 This is a schematic diagram of the robotic gripper fixture of the double-layer automated connection tooling according to a specific embodiment of the present invention. Figure 3 This is a schematic diagram of the robotic gripper fixture of the double-layer automated connection tooling according to a specific embodiment of the present invention from another perspective. Figure 4 This is a schematic diagram of the workpiece positioning fixture of the double-layer automated connection fixture according to a specific embodiment of the present invention; Figure 5 A schematic diagram of the accessory installation fixture of the double-layer automated connection fixture according to a specific embodiment of the present invention; Figure 6 This is a schematic diagram of the nail-post installation structure of the double-layer automated connection tooling according to a specific embodiment of the present invention; Figure 7 This is a schematic diagram of the locking structure of a double-layer automated connection tooling according to a specific embodiment of the present invention. Figure 8 for Figure 5 Enlarged view of point A; Figure 9 This is a schematic diagram of the conveying mechanism of the double-layer automated connection tooling according to a specific embodiment of the present invention; Figure 10 This is a schematic diagram of the conveying mechanism of the double-layer automated connection tooling according to a specific embodiment of the present invention from another perspective. Figure 11 for Figure 10 Enlarged view at point B.

[0008] Label Explanation: 1. Handling and assembly mechanism; 11. Clamping block assembly; 12. Locking bracket; 13. Mounting bracket; 14. Positioning pin; 15. Suction cup assembly; 2. Upper and lower layer tooling; 21. Accessory installation tooling; 211. Tooling base plate; 212. Positioning pin seat; 213. Contouring body; 214. Nail column installation structure; 2141. First connecting plate; 2142. Nail column mounting seat; 2143. First clearance opening; 215. Suction cup lifting structure; 216. Pad block installation assembly; 217. Locking structure; 2171. Docking seat; 2172. Locking pin; 218. Vertical tooling positioning pin; 219. Fiber optic display box; 220. Horizontal tooling positioning pin; 22. Upper slide rail; 23. Lower slide rail; 24. Slide rail base; 25. Lifting slider; 26. Assembly area; 27. Unloading area; 28. Tooling positioning seat; 29. ​​Positioning socket; 3. Workpiece positioning fixture; 31. Machine base; 32. Support component; 33. Lateral positioning component; 331. Lateral positioning seat; 34. Vertical positioning component; 341. Vertical positioning seat; 35. Roller; 4. Guardrails. Detailed Implementation

[0009] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0010] Taking the assembly of glass accessories as an example, the traditional method requires manual assembly of accessories one by one, followed by the transfer of glass and installation of accessories by a robotic arm. During the robotic arm's operation, the operator needs to wait for the robotic arm to complete its processing before proceeding to the installation of accessories on the next tooling base plate 211.

[0011] Please refer to Figures 1 to 11 A double-layer automated assembly line tooling includes a handling and assembly mechanism 1, a conveying mechanism, and an accessory installation tooling 21; the conveying mechanism includes an assembly area 26 and a unloading area 27; the two sets of accessory installation tooling 21 are respectively connected to the conveying mechanism for transmission, and the two sets of accessory installation tooling 21 are staggered in the vertical direction; the handling and assembly mechanism 1 is located at the unloading end of the conveying mechanism and can be arranged opposite to the unloading area 27.

[0012] It is understood that the beneficial effects of the present invention are as follows: by cooperating with the two sets of accessory installation fixtures 21 arranged vertically in a staggered manner and the conveying mechanism, the upstream and downstream processes can be carried out simultaneously, that is, the processing process at the handling assembly mechanism 1 and the manual assembly process on one side of the assembly area 26 can be carried out synchronously, thereby improving the overall cycle time and assembly efficiency.

[0013] In some embodiments, the conveying mechanism includes a slide rail base 24, an upper slide rail 22, a lower slide rail 23, a lifting slider 25, and a driving mechanism. The slide rail base 24 has a recessed space, the upper slide rail 22 is located on the upper side of the slide rail base 24, and the lower slide rail 23 is located in the recessed space. The two sets of accessory installation fixtures 21 are respectively an upper fixture slidably connected to the upper slide rail 22 and a lower fixture slidably connected to the lower slide rail 23. A lifting slider 25 is provided between the upper fixture and the upper slide rail. The driving mechanism is connected to the upper fixture and the lower fixture in a transmission manner. As described above, the upper slide rail 22 and the lower slide rail 23 on the slide rail base 24 are respectively located on the upper side of the slide rail base 24 and in the sunken space, so that the two sets of accessory installation fixtures 21 are staggered. Furthermore, by setting the lifting slider 25 of the upper slide rail 22, it is ensured that the accessory installation fixture 21 located on the lower slide rail 23 has sufficient passage space. The upper and lower fixtures slide through the connected drive mechanism, which is arranged in the sunken space.

[0014] In some embodiments, a positioning component is further included. The positioning component comprises a lateral positioning component and a vertical positioning component, which are mounted on the conveying mechanism. The lateral and vertical positioning components are respectively connected to corresponding accessory mounting fixtures to limit their displacement in the conveying direction of the conveying mechanism and perpendicular to the conveying direction. As can be seen from the above, through the positioning cooperation of the lateral and vertical positioning components, the positioning of the accessory mounting fixture after it moves to the assembly area can be achieved, ensuring the accuracy of subsequent processing actions.

[0015] In some embodiments, the accessory installation fixture 21 includes a fixture base plate 211 and an accessory installation mechanism. The accessory installation mechanism is provided on the upper surface of the fixture base plate 211. The accessory installation mechanism is used to cooperate with the handling and assembly mechanism 1. As can be seen from the above description, by arranging the accessory installation mechanism on the upper surface of the fixture base plate 211, interference can be avoided when the upper accessory installation fixture 21 and the lower accessory installation fixture 21 move together. At the same time, compared with the traditional single-layer fixture, the single-sided arrangement of the accessory installation mechanism can reduce the overall thickness of the fixture, which is more suitable for the synchronous operation of the upper and lower layers.

[0016] In some embodiments, the accessory mounting fixture 21 further includes a contouring body 213 and a vacuum system. The contouring body 213 is used to cooperate and fix with the workpiece to be assembled. Both the contouring body 213 and the vacuum system are located on the upper surface of the fixture base plate 211, and the vacuum system is connected to the accessory mounting mechanism. As can be seen from the above description, the contouring body 213 is used to cooperate and fix with the workpiece to be assembled, and the vacuum system is used as the driving force to drive the accessory mounting mechanism to perform the assembly operation. The arrangement of the above structure on the upper surface of the fixture base plate 211 ensures that the lower surface of the fixture base plate 211 and the space corresponding to the lower surface are not occupied, thus ensuring a compact arrangement of the upper and lower fixtures 2.

[0017] In some embodiments, the vacuum system includes a shunt line, and the contoured body 213 is hollow inside, with the shunt line arranged within the contoured body 213. As can be seen from the above description, by arranging the shunt line of the vacuum system inside the contoured body 213, the space occupied by the shunt line and the tooling base plate 211 can be reduced, ensuring the dimensional reduction design of the accessory mounting tooling 21.

[0018] In some embodiments, the accessory installation mechanism includes a nail post mounting structure 214. The nail post mounting structure 214 includes a first connecting plate 2141, a first driving cylinder, and a nail post mounting seat 2142. The tooling base plate 211 is provided with a first clearance opening 2143 at a position opposite to the nail post mounting structure 214. The first connecting plate 2141 is connected to the edge of the first clearance opening 2143. The first driving cylinder is connected to the first connecting plate 2141. The driving end of the first driving cylinder is provided with the nail post mounting seat 2142. As described above, the nail post mounting structure 214 can be used for nail post mounting on the workpiece to be assembled. During installation, the operator in the assembly area 26 places the nail post on the nail post mounting seat 2142. After the accessory mounting fixture 21 is transferred to the transport assembly mechanism 1, the transport assembly mechanism 1 fixes the workpiece to be assembled. Then, the first drive cylinder drives the nail post mounting seat 2142 to move toward the nail post mounting position of the workpiece to be assembled and adheres the nail post. The design of the first clearance port 2143 ensures that the first drive cylinder has sufficient drive stroke.

[0019] In some embodiments, the handling and assembly mechanism 1 includes a mounting bracket 13, a pressure block assembly 11, and a locking bracket 12. The pressure block assembly 11 and the locking bracket 12 are both located on the side of the mounting bracket 13 near the accessory mounting fixture 21. The pressure block assembly 11 is used to press the workpiece to be assembled against the accessory mounting fixture 21. The accessory mounting mechanism includes a locking structure 217, which includes a second drive cylinder, a docking seat 2171, and a locking pin 2172. The docking seat 2171 is provided with a docking groove that engages with the locking bracket 12. The locking bracket 12 and the docking groove are both provided with communicating insertion ports. The second drive cylinder drives the locking pin 2172 to insert into the insertion port. As described above, the conveying and assembly mechanism 1 integrates a pressure block assembly 11 and a locking bracket 12 by setting a mounting bracket 13 as the mounting position. The pressure block assembly 11 is used to press and fix the workpiece to be assembled onto the accessory mounting fixture 21. The locking bracket 12 cooperates with the locking structure 217. After the locking bracket 12 is inserted into the docking groove of the docking seat 2171, the second drive cylinder drives the locking pin 2172 to pass through the locking bracket 12 and the docking seat 2171 at the same time, so that the two are fixedly engaged. This avoids the conveying and assembly mechanism 1 as a whole pressing against the workpiece to be assembled, and avoids the reverse impact that would affect the movement accuracy of the conveying and assembly mechanism 1 itself.

[0020] In some embodiments, the workpiece positioning fixture 3 is further included. The workpiece positioning fixture 3 is disposed on one side of the conveying and assembly mechanism 1. The workpiece positioning fixture 3 includes a machine base 31, a support member 32, a transverse positioning member 33, and a vertical positioning member 34. The machine base 31 is provided with a support member 32 for supporting the workpiece. The transverse positioning member 33 includes a transverse positioning seat 331, and the vertical positioning member 34 includes a vertical positioning seat 341. In the length direction of the machine base 31, at least one transverse positioning seat 331 is provided at each end of the machine base 31, and every two oppositely arranged transverse positioning seats 331 can move towards each other. In the width direction of the machine base 31, at least one vertical positioning seat 341 is provided at each end of the machine base 31, and every two oppositely arranged transverse positioning seats 331 can move towards each other. As described above, the workpiece positioning fixture 3 performs positioning processing on the workpiece to be assembled before transferring it to the accessory mounting fixture 21. Then, it can be positioned and transferred to the accessory mounting fixture 21 by the transport assembly mechanism 1 without having to readjust the position of the workpiece to be assembled on the accessory mounting fixture 21. Specifically, after the workpiece to be assembled is transferred to the workpiece positioning fixture 3, it is supported by the support member 32, and then the horizontal positioning seat 331 and the vertical positioning seat 341 sequentially clamp and position the workpiece to be assembled in four directions.

[0021] An assembly method applied to the aforementioned double-layer automated connection tooling: S1: The conveying and assembly mechanism 1 conveys the workpiece to be assembled to the accessory installation fixture 21 located in the unloading area 27; S2: The accessory installation fixture 21 in the unloading area 27 enters the assembly area 26 through the conveying mechanism to assemble the accessories in the accessory installation fixture 21 located in the assembly area 26. S3: After the accessory installation fixture 21 is assembled, it enters the unloading area 27 through the conveying mechanism and is then assembled on the accessory installation fixture 21 by the handling and assembly mechanism 1. S4: After the workpiece to be assembled is assembled, the handling and assembly mechanism 1 will unload it and repeat S1.

[0022] As can be seen from the above description, the assembly method described above can realize the synchronous operation of the assembly area 26 and the unloading area 27, which improves the situation in traditional single-layer tooling applications where operators are idle and waiting for the handling mechanism 1 to complete the assembly operation, thus slowing down the production cycle.

[0023] Please refer to Figures 1 to 11 Example 1: A double-layer automated production line fixture includes a handling and assembly mechanism 1 and upper and lower layer fixtures 2. The upper and lower layer fixtures 2 include an accessory installation fixture 21, a slide rail base 24, a drive mechanism, an upper slide rail 22, and a lower slide rail 23. The slide rail base 24, the upper slide rail 22, the lower slide rail 23, and the drive mechanism are combined to form a conveying mechanism. The two ends of the conveying mechanism are provided with an assembly area 26 and a unloading area 27. The accessory installation fixture 21 includes an upper fixture and a lower fixture. The upper slide rail 22 and the lower slide rail 23 are parallel and arranged vertically on the slide rail base 24. Specifically, the upper slide rail 22 is located on the upper side of the slide rail base 24, and a recessed space is provided inside the slide rail base 24. The lower slide rail 23 is located in the recessed space, and the upper fixture is movably mounted on the upper slide rail 22, while the lower fixture is movably mounted on the lower slide rail 23. A lifting slider 25 is provided at the bottom of the upper fixture to increase the gap between the upper and lower fixtures and avoid sliding interference of the lower fixture. The transmission end of the drive mechanism is connected to the upper and lower fixtures. The transport and assembly mechanism 1 is located in the unloading area 27 of the conveying mechanism. In this embodiment, the transport and assembly mechanism 1 is a robotic gripper fixture. Correspondingly, a guardrail 4 is provided at the assembly area 26. During the operation, the accessory installation fixture 21 transferred by the upper slide rail 22 is first assembled by the operator in the assembly area 26, while the accessory installation fixture 21 transferred by the lower slide rail 23 is assembled in the assembly area 26 and then transferred to the robotic arm fixture for processing. The accessory installation fixtures 21 on both the upper slide rail 22 and the lower slide rail 23 can be assembled simultaneously by the robotic arm fixture or the operator in the assembly area 26, greatly improving the overall assembly efficiency.

[0024] like Figure 5As shown, specifically, to ensure that the accessory installation fixture 21 can move on the upper slide rail 22 and the lower slide rail 23 without interference, a thinning treatment is adopted for the accessory installation fixture 21. The accessory installation fixture 21 includes a fixture base plate 211 and an accessory installation mechanism. The accessory installation mechanism includes a contoured body 213, a vacuum system, a nail post mounting structure 214, and a suction cup lifting structure 215. All of the above accessory installation mechanisms are installed on the upper surface of the fixture base plate 211, making the lower surface of the fixture base plate 211 flat and providing sufficient clearance to allow the other accessory installation fixture 21 to move on the lower slide rail 23. In addition, a fiber optic display box 219 for leak-proof accessory installation is also provided in the middle of the fixture base plate 211.

[0025] Depending on the processing requirements, the accessory mounting mechanism may also include a pad mounting assembly 216 for mounting pads on workpieces to be assembled.

[0026] like Figure 10 and Figure 11 As shown, the attachment installation fixture 21 is positioned in the assembly area 26 via a positioning component. This positioning component includes a horizontal positioning component and a vertical positioning component. The horizontal positioning component restricts the movement of the attachment installation fixture 21 along the length of the conveying mechanism. The horizontal positioning component includes a positioning socket 29 and a drive cylinder disposed between the fixture base plate 211 and the slide rail base 24, as well as a horizontal fixture positioning pin 220 disposed on the underside of the fixture base plate 211. After the fixture base plate 211 is in position, the drive cylinder drives the positioning socket 29 to rise and fall to engage with the horizontal fixture positioning pin 220, thereby restricting the movement of the fixture base plate 211 along the length of the conveying mechanism.

[0027] The vertical tooling positioning assembly includes a vertical tooling positioning pin 218, a positioning cylinder, and a tooling positioning seat 28. The upper slide rail 22 and lower slide rail 23 are equipped with the tooling positioning seat 28 located in the assembly area 26. The vertical tooling positioning pin 218 and the positioning cylinder are mounted on the tooling base plate 211 of the accessory installation tooling 21. After the tooling base plate 211 moves to the assembly area 26, the positioning cylinder connected to the vertical tooling positioning pin 218 drives the pin to engage with the tooling positioning seat 28, thus achieving tooling positioning. Through the positioning cooperation of the horizontal tooling positioning assembly and the vertical tooling positioning assembly, the positioning of the accessory installation tooling 21 after movement is achieved.

[0028] The contouring body 213 is arranged in a frame shape on the tooling base plate 211. Multiple suction cup lifting structures 215 are arranged in an array in its central part, forming a space for vacuum system installation. Pad mounting components 216 are spaced along the edge of the contouring body 213, and nail mounting structures 214 are also arranged inside the contouring body 213. Specifically, the nail mounting structure 214 includes a first connecting plate 2141, a first driving cylinder, and a nail mounting seat 2142. The tooling base plate 211 has a first clearance opening 2143 positioned opposite to the nail mounting structure 214. The first connecting plate 2141 is connected to the edge of the first clearance opening 2143. The first driving cylinder is connected to the first connecting plate 2141, and the driving end of the first driving cylinder has the nail mounting seat 2142. Compared to the traditional nail-post installation structure 214, which requires adjustable space and needs to be recessed to the lower end of the tooling base plate 211, the nail-post installation structure 214 in this solution can be directly arranged on the upper end of the tooling base plate 211 to avoid the space occupied by the recessed design on the lower end of the tooling base plate 211.

[0029] The vacuum system includes multiple diversion lines connected to the aforementioned pad mounting assembly 216, suction cup lifting structure 215, and nail mounting structure 214. The vacuum system serves as the driving source for the operation of these structures. Specifically, the contouring body 213 has a hollow interior design, and the diversion lines are arranged inside the contouring body 213, greatly reducing the space occupied on the upper surface of the tooling base plate 211.

[0030] Example 2: The difference between this embodiment and Embodiment 1 is that: Figure 2 and Figure 3 As shown, the robotic gripper fixture includes a mounting bracket 13, a pressure block assembly 11, a locking bracket 12, a suction cup assembly 15, and a positioning pin 14. The pressure block assembly 11, the locking bracket 12, and the suction cup assembly 15 are all located on the side of the mounting bracket 13 near the upper and lower layer fixtures 2. The pressure block assembly 11 is used to press the workpiece to be assembled against the upper and lower layer fixtures 2. Specifically, the pressure block assembly 11 is opposite to the edge strip that is manually assembled on the accessory mounting fixture 21, and the pressure block assembly 11 presses the workpiece to be assembled against and fits the edge strip. The suction cup assembly 15 is used to adsorb the workpiece to be assembled.

[0031] like Figure 5As shown, the accessory installation mechanism also includes a locking structure 217 and a positioning pin seat 212. The locking bracket 12 is used to cooperate with the locking structure 217. The locking structure 217 includes a second drive cylinder, a docking seat 2171, and a locking pin 2172. The docking seat 2171 is provided with a docking groove for insertion into the locking bracket 12. Both the locking bracket 12 and the docking groove are provided with communicating insertion ports. The second drive cylinder drives the locking pin 2172 to insert into the insertion port. The positioning pin seat 212 cooperates with the positioning pin 14 to achieve positioning of the robotic arm fixture tooling during operation.

[0032] After the accessory installation fixture 21 is transferred to the unloading area 27, the robotic arm clamp fixture moves down so that the workpiece to be assembled is close to the fixture base plate 211. Then, the suction cup lifting structure 215 on the fixture base plate 211 lifts and adsorbs the workpiece to be assembled. Then, the pressure block assembly 11 of the robotic arm clamp fixture moves, and the locking bracket 12 of the robotic arm clamp fixture cooperates with the locking structure 217 to fix it, so as to avoid the impact of downward pressure affecting the movement accuracy of the robotic arm clamp fixture.

[0033] Example 3: The difference between this embodiment and Embodiment 1 is that: Figure 4 As shown, the system also includes a workpiece positioning fixture 3, which is located on one side of the robot gripper fixture. The workpiece positioning fixture 3 includes a machine base 31, a support member 32, a transverse positioning member 33, and a vertical positioning member 34. The machine base 31 is equipped with a support member 32 for supporting the workpiece. The transverse positioning member 33 and the vertical positioning member 34 are respectively arranged in the length and width directions of the machine base 31. The transverse positioning member 33 includes at least two opposing transverse positioning seats 331 and a third drive cylinder, which drives the transverse positioning seats 331 to move in the length direction of the machine base 31. The vertical positioning member 34 includes at least two opposing vertical positioning seats 341 and a fourth drive cylinder, which drives the vertical positioning seats 341 to move in the width direction of the machine base 31. Both the transverse positioning seats 331 and the vertical positioning seats 341 are equipped with rollers 35, which abut against the edge of the workpiece to be assembled.

[0034] During processing, the workpiece to be assembled is first transferred to the workpiece positioning fixture 3 for clamping and positioning. The workpiece to be assembled is supported by the support member 32, and then clamped and positioned by the horizontal positioning seats 331 on the left and right sides of the machine base 31 and the vertical positioning seats 341 on the upper and lower sides of the machine base 31. Finally, the workpiece to be assembled is positioned, and then it is transferred by the robot arm fixture. This avoids the need for secondary positioning of the workpiece on the accessory mounting fixture 21.

[0035] Example 4: An assembly method applicable to any of the two-layer automated connection tooling in Embodiments 1 to 4: S0: The operator in assembly area 26 pre-assembles the accessories using the accessory installation fixtures; S1: The conveying and assembly mechanism 1 conveys the workpiece to be assembled to the first set of accessory installation fixtures 21 located in the unloading area 27; S2: The first set of accessory installation fixtures 21 in the unloading area 27 enters the assembly area 26 through the conveying mechanism. In the assembly area 26, the operator assembles the accessories on the accessory installation fixtures 21. At the same time, the transport assembly mechanism 1 transports the workpiece to be assembled to the second set of accessory installation fixtures 21 located in the unloading area 27. S3: After the first set of accessory installation fixtures 21 is assembled, it enters the unloading area 27 through the conveying mechanism. The second set of accessory installation fixtures 21 enters the assembly area 26 through the conveying mechanism. The handling and assembly mechanism 1 performs the assembly operation on the first set of accessory installation fixtures 21. The operator in the assembly area 26 begins to assemble the accessories on the second set of accessory installation fixtures 21. S4: After the workpiece to be assembled is assembled, the handling and assembly mechanism 1 will unload it and repeat S1.

[0036] Working principle: The workpiece to be assembled is first transferred to the workpiece positioning fixture 3 for clamping and positioning. The workpiece is clamped and positioned by the horizontal positioning component 33 and the vertical positioning component 34, and then transferred by the robot arm fixture.

[0037] Next, at the two tooling locations (upper and lower layers), the operator in assembly area 26 assembles the edge strips, pads, and nails onto the corresponding contoured body 213, pad mounting assembly 216, and nail mounting structure 214 of the accessory mounting tooling 21. Then, the accessory mounting tooling 21 is transferred to the unloading area 27 via the upper slide rail 22 or the lower slide rail 23. Afterwards, the robotic arm clamping tooling moves down and engages with the positioning pin seat 212 and locking structure 217 of the accessory mounting tooling 21. The suction cup lifting structure 215 then lifts and transfers the workpiece to be assembled. Subsequently, the pressure block assembly 11, pad mounting assembly 216, and nail mounting structure 214 move synchronously to install the edge strips, pads, and nails onto the workpiece. Finally, the assembled workpiece is transferred using the robotic arm clamping tooling.

[0038] While the robotic gripper is assembling one accessory mounting fixture 21, another accessory mounting fixture 21 is transferred to the assembly area 26 via the upper slide rail 22 or the lower slide rail 23 for accessory installation. The machining of the robotic gripper and manual assembly are carried out simultaneously.

[0039] In summary, the double-layer automated assembly line fixture provided by this invention, through the cooperation of two sets of accessory installation fixtures arranged vertically in a staggered manner and a conveying mechanism, enables the synchronous operation of upstream and downstream processes, namely, the processing process at the handling and assembly mechanism and the manual assembly process on one side of the assembly area, thereby improving the overall cycle time and assembly efficiency. The staggered arrangement of the upper and lower slide rails on the slide rail base, located on the upper side and in the recessed space respectively, achieves the two sets of accessory installation fixtures. Furthermore, the lifting slider of the upper slide rail ensures sufficient passage space for the accessory installation fixtures located on the lower slide rail. After the conveying mechanism transfers the accessory installation fixtures to the assembly area, the cooperation of the positioning cylinder and the fixture positioning pin ensures... The tooling positioning pin is inserted into the tooling positioning seat on the conveying mechanism for tooling positioning; the arrangement of the accessory mounting mechanism on the upper surface of the tooling base plate avoids interference when the upper and lower accessory mounting toolings move; at the same time, compared with traditional single-layer tooling, the single-sided arrangement of the accessory mounting mechanism can reduce the overall thickness of the tooling, making it more suitable for simultaneous upper and lower layer operations; the contour body is used to cooperate and fix with the workpiece to be assembled, and the vacuum system is used as the driving force to drive the accessory mounting mechanism to perform assembly operations; the arrangement of the above structure on the upper surface of the tooling base plate ensures that the lower surface of the tooling base plate and the corresponding space thereunder are not occupied, ensuring a compact arrangement of upper and lower layer tooling; by arranging the shunt lines of the vacuum system on the contour body... The internal structure reduces the space occupied by the distribution pipelines and the tooling base plate, ensuring a thinner design for the accessory installation tooling. The nail post mounting structure can be used for nail post installation on the workpiece to be assembled. During installation, the operator in the assembly area places the nail post on the nail post mounting seat. After the accessory installation tooling is transferred to the transport assembly mechanism, the transport assembly mechanism fixes the workpiece to be assembled. Then, the first drive cylinder drives the nail post mounting seat to move toward the nail post mounting position of the workpiece to be assembled and adheres the nail post. The design of the first clearance opening ensures that the first drive cylinder has sufficient drive stroke. Compared with the traditional I-shaped integrated drive suction cup, the suction cup lifting structure arrayed on the tooling base plate can reduce the installation space occupied by the tooling base plate. Ensure sufficient installation space for other components such as the vacuum system, thereby reducing the installation arrangement on the lower end of the tooling base plate and ensuring a thinner arrangement of the accessory installation tooling to suit the upper and lower slide rails for conveying. The handling and assembly mechanism integrates a pressure block assembly and a locking bracket by setting up a mounting bracket as the mounting position. The pressure block assembly is used to press and fix the workpiece to be assembled onto the accessory installation tooling, while the locking bracket, in cooperation with the locking structure, after the locking bracket is inserted into the docking slot of the docking seat, the second drive cylinder drives the locking pin to pass through the locking bracket and the docking seat simultaneously, so that the two are fixedly engaged, thereby avoiding the entire handling and assembly mechanism pressing against the workpiece to be assembled and being subjected to reverse impact, which would affect the movement accuracy of the handling and assembly mechanism itself.Before being transferred to the accessory mounting fixture, the workpiece is positioned using a workpiece positioning fixture. Then, it is gripped and transferred to the accessory mounting fixture by a robotic arm fixture, eliminating the need to readjust the position of the workpiece on the mounting fixture. A guardrail design separates the material unloading area from the assembly area, ensuring processing safety.

[0040] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A double-layer automated connection tooling, characterized in that, Includes a handling and assembly mechanism, a conveying mechanism, and two sets of accessory installation fixtures; The conveying mechanism includes an assembly area and a feeding area; The two sets of accessory installation fixtures are respectively connected to the conveying mechanism for transmission, and the two sets of accessory installation fixtures are staggered in the vertical direction; The handling and assembly mechanism is located at the unloading end of the conveying mechanism and can be arranged opposite to the unloading area; The accessory installation fixture can be transferred from the assembly area to the unloading area, and from the unloading area to the assembly area; The accessory installation fixture includes a fixture base plate and an accessory installation mechanism. The upper surface of the fixture base plate is provided with the accessory installation mechanism. The accessory installation mechanism is used to cooperate with the handling and assembly mechanism. The accessory installation fixture also includes a contour-following body and a vacuum system; The vacuum system includes a flow divider, the contouring body is hollow, and the flow divider is arranged inside the contouring body. The handling and assembly mechanism includes a mounting bracket, a pressure block assembly, and a locking bracket, wherein the pressure block assembly and the locking bracket are both located on the side of the mounting bracket near the accessory mounting fixture. The pressure block assembly is used to press the workpiece to be assembled against the accessory installation fixture; The accessory installation mechanism includes a locking structure, which includes a second drive cylinder, a docking seat, and a locking pin. The docking seat is provided with a docking groove that engages with the locking bracket. Both the locking bracket and the docking groove are provided with communicating ports. The second drive cylinder drives the locking pin to insert into the port.

2. The double-layer automated connection tooling according to claim 1, characterized in that, The conveying mechanism includes a slide rail base, an upper slide rail, a lower slide rail, a lifting slider, and a driving mechanism. The slide rail base has a recessed space, the upper slide rail is located on the upper side of the slide rail base, and the lower slide rail is located within the recessed space. The two sets of accessory installation fixtures are an upper fixture slidably connected to the upper slide rail and a lower fixture slidably connected to the lower slide rail. A lifting slider is provided between the upper fixture and the upper slide rail. The driving mechanism is connected to the upper fixture and the lower fixture in a transmission manner.

3. The double-layer automated connection tooling according to claim 1, characterized in that, It also includes positioning components, which include a lateral positioning component and a vertical positioning component. The lateral positioning component and the vertical positioning component are disposed on the conveying mechanism. The lateral positioning component and the vertical positioning component are respectively connected to the corresponding accessory mounting fixture to limit their displacement in the conveying direction of the conveying mechanism and perpendicular to the conveying direction of the conveying mechanism.

4. The double-layer automated connection tooling according to claim 1, characterized in that, The contoured body is used to mate and fix with the workpiece to be assembled; Both the contouring body and the vacuum system are located on the upper surface of the tooling base plate, and the vacuum system is connected to the accessory installation mechanism.

5. The double-layer automated connection tooling according to claim 1, characterized in that, The accessory installation mechanism includes a nail-post installation structure; The nail mounting structure includes a first connecting plate, a first driving cylinder, and a nail mounting base; The tooling base plate is provided with a first clearance opening at the position opposite to the nail column installation structure, and the first connecting plate is connected to the edge of the first clearance opening; The first drive cylinder is connected to the first connecting plate, and the transmission end of the first drive cylinder is provided with a nail mounting seat.

6. The double-layer automated connection tooling according to claim 1, characterized in that, It also includes a workpiece positioning fixture, which is located on one side of the handling and assembly mechanism. The workpiece positioning fixture includes a machine base, a support member, a transverse positioning member, and a vertical positioning member. The machine base is provided with a support member for supporting the workpiece. The transverse positioning member includes a transverse positioning seat, and the vertical positioning member includes a vertical positioning seat. Along the length of the machine base, at least one transverse positioning seat is provided at each end of the machine base, and every two oppositely provided transverse positioning seats can move towards each other. Along the width of the machine platform, at least one vertical positioning seat is provided at each end of the machine platform, and every two oppositely arranged horizontal positioning seats can move towards each other.

7. An assembly method applied to a double-layer automated assembly line tooling as described in any one of claims 1 to 6, characterized in that, Includes the following steps: S1: The transport and assembly mechanism transports the workpiece to be assembled to the accessory installation fixture located in the unloading area; S2: The accessory installation fixtures in the unloading area enter the assembly area through the conveying mechanism to assemble the accessories on the accessory installation fixtures located in the assembly area. S3: After the accessory installation fixture is assembled, it enters the unloading area through the conveying mechanism and is then assembled on the accessory installation fixture by the handling and assembly mechanism. S4: The conveying and assembly mechanism will unload the workpiece after it has been assembled, and repeat S1 at the same time.

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