FPC winding assembly production line

Abstract

The application provides an FPC winding assembly production line, comprising: a machine table, wherein the machine table is sequentially provided with an adhesive station, a winding station, a rod separation station, an assembly station and a detection station along a production direction, and the adhesive station, the winding station, the rod separation station, the assembly station and the detection station are sequentially provided with an adhesive device, a winding device, a rod separation device, an assembly device and a detection device, respectively, wherein the adhesive device is used for adhesively fixing a mandrel to one end of a sheet-shaped FPC; the winding device is used for winding and adhesively fixing the remaining part of the FPC on the mandrel to form an FPC roll; the rod separation device is used for heating the mandrel and separating the mandrel from the FPC roll; the assembly device is used for gluing and sleeving a shell on the outer periphery of the separated FPC roll to form a finished product; and the detection device is used for visually detecting the two axial ends of the finished product to determine the roundness. In the above manner, full automation from the sheet-shaped FPC to the finished product is realized, and the production efficiency, the winding quality and the finished product yield are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of automated assembly equipment technology, and in particular to an FPC winding assembly production line. Background Technology

[0002] Flexible printed circuit boards (FPCs) are widely used in consumer electronics, medical devices, and automotive electronics due to their advantages such as bendability, light weight, and high wiring density. In some specific applications, FPCs need to be pre-wound into a cylindrical shape and then fitted with a protective shell to form a finished component.

[0003] Traditional FPC winding and assembly methods rely heavily on manual operation: operators first glue the mandrel to one end of the FPC, then manually apply adhesive and wind it, followed by using tools to remove the mandrel, and finally fitting it into the outer casing and visually inspecting its roundness. This manual production method is inefficient and prone to issues such as incomplete gluing and improper winding. Especially during the mandrel separation process, improper manual operation can easily damage the FPC, making it difficult to control the consistency of the final product and resulting in a low yield. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes an FPC winding assembly production line that effectively improves assembly efficiency and finished product precision.

[0005] The main content of this invention includes: a machine platform, wherein the machine platform is arranged sequentially along the production direction as follows: a bonding station, a winding station, a rod removal station, an assembly station, and an inspection station, and corresponding to each station are arranged sequentially as follows: An adhesive bonding device is used to bond and fix the mandrel to one end of a sheet-like FPC. A winding device is used to wind and bond the remaining portion of the FPC to the mandrel to form an FPC roll; A mandrel release device is used to heat the mandrel and separate it from the FPC roll; An assembly device is used to apply adhesive to the outer periphery of the separated FPC rolls and fit them with a housing to form a finished product. The inspection device is used to visually inspect both ends of the finished product along its axial direction to determine its roundness. The machine is equipped with a handling robot on its exterior, which is used to connect two adjacent workstations in sequence to facilitate product transfer.

[0006] Preferably, the bonding device includes: An adhesive support fixture is movably disposed on the machine base along a first direction. The adhesive support fixture has a first support plane for adsorbing and fixing the FPC, and a first mounting groove extending through along a second direction for accommodating the mandrel. The first dispensing mechanism includes a first dispensing head and a first three-axis motion drive module for driving the first dispensing head to move in multiple directions, for applying adhesive to the portion of the FPC carried corresponding to the first mounting groove. The mandrel clamping mechanism includes two first clamping members disposed opposite to each other on both sides of the adhesive bearing fixture along the second direction, for clamping both ends of the mandrel and pressing the mandrel into the first placement groove, so that the mandrel is bonded to the FPC adhesive portion; The first transverse drive module is used to drive the adhesive bearing fixture to reciprocate along the first direction.

[0007] Preferably, the adhesive bearing fixture includes: Fixture base plate; The first carrier plate is floatingly supported on the fixture base plate by a number of vertically arranged first guide rods and a first buffer spring sleeved on the first guide rods. The first bearing plane and the first placement groove are formed on the upper surface of the first carrier plate. The first bearing plane is provided with vacuum adsorption holes and is provided with positioning blocks in its circumference for defining the FPC placement area.

[0008] Preferably, each of the first clamping components includes a first gripper and a first lifting drive component for driving the first gripper to move vertically up and down; One set of first jaws has a prism-shaped groove on the inner side of its gripping arm that matches the prism structure end of the mandrel, and the other set of first jaws has an arc-shaped groove on the inner side of its gripping arm that matches the cylindrical end of the mandrel.

[0009] Preferably, the winding device includes: A winding support fixture is movably disposed on the machine base along a first direction. It has a second carrier plate that can float up and down. The upper surface of the second carrier plate forms a second bearing plane and a second mounting groove extending through along a second direction for mounting the mandrel and FPC that have been bonded. The second dispensing mechanism includes a second dispensing head and a second three-axis motion drive module that drives the second dispensing head to move in multiple directions. The rotary clamping mechanism includes two sets of second clamping members disposed opposite to each other on both sides of the winding support fixture along the second direction. Each set of second clamping members is configured to be liftable and used to clamp both ends of the mandrel and drive the mandrel to rotate. The auxiliary pressing mechanism includes a pressing roller located directly above the second mounting groove, and a roller lifting drive for driving the pressing roller to rise and fall, for pressing down the wound FPC at all times during the winding process.

[0010] Preferably, the rod removal device includes: A heated clamping mechanism for clamping the prismatic end of a mandrel includes a third jaw, a second rotary drive for driving the third jaw to rotate around a clamping axis, and a heater connected to the clamping arm of the third jaw. The clamping arm of the third jaw is configured to conform to the prismatic end of the mandrel. The FPC clamping mechanism includes a fourth clamping jaw and a bidirectional lateral movement drive module that drives the fourth clamping jaw to move horizontally along a first direction and a second direction. The clamping end of the fourth clamping jaw has a contoured clamping groove adapted to the curvature of the FPC roll, which is used to clamp the FPC roll out from the cylindrical end of the mandrel.

[0011] Preferably, the rod release device further includes an auxiliary heating mechanism, which is disposed at the end of the clamped mandrel away from the clamping heating mechanism; The auxiliary heating mechanism includes a heating sleeve and a second transverse drive member that drives the heating sleeve to move axially along the mandrel. The heating sleeve has a heating through hole that extends axially and is coaxially arranged with the third gripper. The inner diameter of the heating through hole is slightly larger than the diameter of the cylindrical end of the mandrel.

[0012] Preferably, the FPC clamping mechanism is further configured with a force detection unit; the moving end of the bidirectional transverse drive module is configured with a connecting plate, and the fourth gripper is mounted on the connecting plate in cooperation with a slide rail slider, the slide rail being parallel to the axis of the clamped mandrel; a fixing plate is fixed at one end of the slide rail away from the mandrel prism structure, and a tension sensor is provided between the fourth gripper and the fixing plate.

[0013] Preferably, the assembly device includes: A temporary storage platform with vertically extending temporary storage slots for placing the outer casing; A rotating support mechanism includes a fixture platform, a third rotary drive for driving the fixture platform to rotate, and a fourth rotary drive for driving the fixture platform and the third rotary drive to swing as a whole. The fixture platform is provided with a protruding positioning post, and the positioning post has a vacuum adsorption hole in its circumferential direction for positioning and adsorbing rolled FPC. The third rotary drive is used to drive the fixture platform to rotate about the axial direction of the positioning post. The fourth rotary drive is used to drive the fixture platform to rotate, so that the positioning post switches between a vertical state and a horizontal state. The third dispensing mechanism includes a third dispensing head and a third three-axis motion drive module for driving the third dispensing head to move in multiple directions, for applying adhesive to the outer peripheral surface of the roll-shaped FPC positioned on the fixture platform. The conveying mechanism is used to connect the temporary storage platform and the rotating bearing mechanism, including a material transfer gripper and a fourth three-axis motion drive module for driving the material transfer gripper to move in multiple directions.

[0014] Preferably, the detection device includes: A testing fixture, wherein a vertically extending receiving groove is provided on the testing fixture for temporarily storing finished products; A visual inspection unit includes a light source and an inspection camera arranged opposite each other in a vertical direction; The finished product clamping and handling mechanism includes a detection gripper, a sixth lifting drive for driving the detection gripper to rise and fall, a rotation drive for driving the detection gripper to rotate around a horizontal axis, and a sixth lateral drive for driving the detection gripper to move horizontally toward the vision inspection unit.

[0015] The beneficial effects of this invention are as follows: by arranging bonding stations, winding stations, rod removal stations, assembly stations, and inspection stations sequentially along the production direction, and cooperating with a handling robot to achieve automatic workpiece transfer, the entire process of automated production from sheet FPC to finished components is realized, significantly improving production efficiency and product consistency. In the winding station, the rotary clamping mechanism is configured with a height-adjustable structure, and rises synchronously with the pressure roller in the auxiliary pressing mechanism. This can compensate for height changes caused by the increase in FPC winding thickness in real time, ensuring that the pressure roller always presses the FPC roll with uniform pressure, thereby ensuring the tightness of the winding and avoiding damage to the FPC. In the separation station, the mandrel release device uses a heating clamping mechanism and an auxiliary heating mechanism to simultaneously heat both ends of the mandrel, causing the adhesive layer to melt quickly. Combined with a horizontally movable FPC clamping mechanism and a rotational swing motion, reliable separation of the mandrel and the FPC roll is achieved. At the same time, by setting up a tension sensor and a slide rail structure, the separation force can be precisely controlled, effectively preventing damage to the FPC roll during the release process and improving the stability and yield of the separation process. Attached Figure Description

[0016] Figure 1 This is a top view of a preferred embodiment. Figure 2 This is a three-dimensional structural schematic diagram of the bonding device in a preferred embodiment; Figure 3 A three-dimensional structural diagram of the bonding support fixture and mandrel clamping mechanism in a preferred embodiment of the bonding device; Figure 4 A three-dimensional structural schematic diagram of the bonding support fixture in a preferred embodiment of the bonding device; Figure 5 This is a three-dimensional structural schematic diagram of the winding device in a preferred embodiment; Figure 6 A three-dimensional structural diagram of the winding support fixture and the winding clamping mechanism in a preferred embodiment of the winding device; Figure 7 A three-dimensional structural diagram of the FPC roll and mandrel used to complete the winding action; Figure 8This is a three-dimensional structural schematic diagram of the rod removal device in a preferred embodiment; Figure 9 A three-dimensional structural diagram of the FPC clamping mechanism in a preferred embodiment of the rod release device; Figure 10 This is a three-dimensional structural schematic diagram of the assembly device in a preferred embodiment; Figure 11 This is a three-dimensional structural diagram of the rotating bearing mechanism in a preferred embodiment of the assembly device; Figure 12 A three-dimensional structural diagram of the third dispensing mechanism and the conveying mechanism in the assembly device according to a preferred embodiment; Figure 13 This is a three-dimensional structural diagram of the detection device in a preferred embodiment; Figure label: 1. Bonding device; 11. Bonding support fixture; 111. Fixture base plate; 112. First carrier plate; 113. First guide rod; 114. First buffer spring; 115. First bearing plane; 116. First mounting groove; 117. Positioning block; 118. Vacuum adsorption hole; 12. First dispensing mechanism; 121. First dispensing head; 122. First three-axis movement drive module; 13. Mandrel clamping mechanism; 131. First gripper; 132. First lifting drive component; 14. First transverse drive module; 2. Winding device; 21. Winding support fixture; 211. Second carrier plate; 22. Second dispensing mechanism; 221. Second dispensing head; 222. Second three-axis moving drive module; 23. Rotary clamping mechanism; 231. Second gripper; 232. First rotary drive component; 233. Second lifting drive component; 24. Auxiliary pressing mechanism; 241. Pressing roller; 242. Roller lifting drive component; 25. Second transverse drive module; 3. Rod release device; 31. Heating clamping mechanism; 311. Third gripper; 312. Second rotary drive component; 313. Heater; 314. Heat insulation block; 32. FPC clamping mechanism; 321. Fourth gripper; 322. Bidirectional transverse movement drive module; 323. Contouring clamping groove; 324. Connecting plate; 325. Slide rail; 326. Fixing plate; 327. Tension sensor; 33. Auxiliary heating mechanism; 331. Heating sleeve; 332. Second transverse movement drive component; 34. Receiving box; 4. Assembly device; 41. Temporary storage platform; 411. Temporary storage slot; 42. Rotary bearing mechanism; 421. Fixture platform; 422. Positioning pin; 423. Third rotary drive component; 424. Fourth rotary drive component; 43. Third dispensing mechanism; 431. Third dispensing head; 432. Third three-axis moving drive module; 44. Transport mechanism; 441. Material transfer gripper; 5. Detection device; 51. Detection fixture; 511. Receiving slot; 521. Light source; 522. Detection camera; 523. Fifth lifting drive component; 53. Finished product clamping and conveying mechanism; 531. Detection gripper; 532. Sixth lifting drive component; 533. Rotation drive component; 534. Sixth lateral movement drive component 61. FPC roll; 62. Mandrel; 621. Prismatic end; 622. Cylindrical end; 63. Outer shell. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1-12 The technical solution protected by this invention will be described in detail below.

[0018] Please see Figures 1 to 12 This invention provides an FPC winding and assembly production line, including a machine base with a bonding station, a winding station, a rod removal station, an assembly station, and an inspection station arranged sequentially along the production direction. Each station is equipped with a bonding device 1, a winding device 2, a rod removal device 3, an assembly device 4, and an inspection device 5. This production line is used to wind sheet-like FPCs into rolls, and then assemble the roll-like FPCs with a housing to form a finished product. Specifically, at the bonding station, the bonding device 1 is used to bond and fix a mandrel to one end of the sheet-like FPC; subsequently, the winding device 2 is used to wind and bond the remaining portion of the FPC to the mandrel, forming an FPC roll; next, the rod removal device 3 is used to heat the mandrel and separate it from the FPC roll; after separation, the assembly device 4 is used to apply adhesive to the outer periphery of the separated FPC roll and fit it with a housing to form a finished product; finally, the inspection device 5 is used to visually inspect both ends of the finished product along its axial direction to determine its roundness. A handling robot (not shown) is installed outside the machine to connect two adjacent workstations in sequence and transfer products between each workstation.

[0019] like Figure 2-4 As shown, the bonding device 1 specifically includes: a bonding support fixture 11, a first dispensing mechanism 12, a mandrel clamping mechanism 13, and a first transverse drive module 14. The bonding support fixture 11 is movably mounted on the machine base along a first direction, and has a first support plane 115 for adsorbing and fixing the FPC, and a first mounting groove 116 extending through along a second direction for accommodating the mandrel, wherein the first direction and the second direction are perpendicular to each other.

[0020] The first transverse drive module 14 is used to drive the bonding support fixture 11 to reciprocate along the first direction, so as to move the bonding support fixture 11 to the position below the first dispensing mechanism 12 to perform FPC dispensing, and then move it to the position of the mandrel clamping mechanism 13 to perform the bonding action between the mandrel and the FPC.

[0021] Specifically, such as Figure 2As shown, the bonding support fixture 11 includes a fixture base plate 111 and a first carrier plate 112. The first carrier plate 112 is floatingly supported on the fixture base plate 111 by a plurality of vertically arranged first guide rods 113 and first buffer springs 114 sleeved on the first guide rods 113. A first bearing plane 115 and a first placement groove 116 are both formed on the upper surface of the first carrier plate 112. A vacuum adsorption hole 118 is provided on the first bearing plane 115 for adsorbing and fixing the FPC to prevent displacement during fixture movement. The bonding support fixture 11 also includes a positioning component, which includes a positioning block 117 disposed circumferentially on the first bearing plane 115 for defining the placement area of ​​the FPC and ensuring that the placement position of each FPC is accurate and consistent.

[0022] The first dispensing mechanism 12 includes a first dispensing head 121 and a first three-axis motion drive module 122 for driving the first dispensing head 121 to move in multiple directions, for applying adhesive to the portion of the FPC corresponding to the first mounting groove 116.

[0023] The mandrel clamping mechanism 13 includes two first clamping members disposed opposite to each other on both sides of the bonding support fixture 11 along a second direction, for clamping both ends of the mandrel and pressing the mandrel into the first mounting groove 116, so that the mandrel is bonded to the FPC adhesive portion. Each first clamping member includes a first jaw 131 and a first lifting drive 132 (such as a lifting cylinder) for driving the first jaw 131 to move vertically up and down.

[0024] like Figure 7 As shown, since the main body of the mandrel 62 is a cylindrical structure, one end is configured as a prism structure end 621 for subsequent anti-rotation. The prism can be square or hexagonal, and the other end is a cylindrical end 622. Therefore, the clamping arms of the two sets of first grippers 131 are respectively configured with contouring. Specifically, the inner side of the clamping arm of one set of first grippers 131 has a prism contouring groove adapted to the prism structure end 621 of the mandrel, and the inner side of the clamping arm of the other set of first grippers 131 has an arc contouring groove adapted to the cylindrical end 622 of the mandrel. This can achieve stable clamping of the mandrel and ensure the stability of the clamping angle of the mandrel, preventing rotation or displacement during the pressing process.

[0025] After initial bonding, the workpiece is transferred to the winding station. For example... Figure 5 , Figure 6As shown, the winding device 2 includes: a winding support fixture 21, a second dispensing mechanism 22, a rotary clamping mechanism 23, an auxiliary pressing mechanism 24, and a second transverse drive module 25. The winding support fixture 21 is movably mounted on the machine base along a first direction. It has a second carrier plate 211 that can float up and down. The upper surface of the second carrier plate 211 forms a second support plane and a second mounting groove extending through along a second direction. When the bonded mandrel and FPC are placed on the second carrier plate 211, the FPC is placed on the second support plane, and the mandrel is correspondingly placed in the second mounting groove.

[0026] The second dispensing mechanism 22 includes a second dispensing head 221 and a second three-axis motion drive module 222 that drives the second dispensing head 221 to move in multiple directions. The second dispensing head 221 is used to dispense adhesive onto the part of the FPC to be wound.

[0027] The rotary clamping mechanism 23 includes two sets of second clamping members disposed opposite to each other on both sides of the winding support fixture 21 along the second direction, for clamping the two ends of the mandrel and driving the mandrel to rotate so as to wind the FPC around the mandrel circumferentially.

[0028] During the winding process, to accommodate the gradual increase in the diameter of the FPC roll, each set of second clamping components is configured with a liftable structure, capable of rising synchronously with the increase in the FPC roll diameter. Specifically, each set of second clamping components includes a second jaw 231, a first rotary drive 232 (such as a rotary cylinder) that drives the second jaw 231 to rotate, and a second lifting drive 233 (such as a lifting cylinder) that drives the second jaw 231 and the first rotary drive 232 to rise and fall synchronously. The clamping ends of the two sets of second jaws 231 are also adapted to conform to the prism structure end and cylindrical end of the mandrel, respectively. During the winding process, as the FPC is wound, the second lifting drive 233 gradually drives the second jaw 231 to rise, compensating for the increased height due to the increased FPC winding thickness, thus smoothly completing the winding operation.

[0029] The auxiliary pressing mechanism 24 includes a pressing roller 241 positioned directly above the second mounting groove, and a roller lifting drive 242 that drives the pressing roller 241 to rise and fall. This mechanism is used to consistently press down on the wound FPC during the winding process, ensuring the tightness of the winding and guaranteeing the winding effect. As the second lifting drive 233 drives the second gripper 231 to rise, the roller lifting drive 242 simultaneously drives the pressing roller 241 to rise to a corresponding height, ensuring that the FPC roll receives a relatively uniform pressing force and preventing excessive pressure that could cause crushing and wear on the FPC roll.

[0030] After winding is completed, the resulting FPC roll 71 (e.g.) Figure 7 As shown), the FPC roll is transferred to the unwinding station. Figure 8 , Figure 9As shown, the rod release device 3 includes a heating clamping mechanism 31 and an FPC clamping mechanism 32.

[0031] The heated clamping mechanism 31 is used to clamp the prismatic end of the mandrel. Specifically, it includes a third jaw 311, a second rotary drive 312 that drives the third jaw 311 to oscillate and rotate around a clamping axis, and a heater 313 connected to the clamping arm of the third jaw 311. The heater 313 heats the clamping arm, and the heat is conducted to the mandrel, melting the adhesive layer between the mandrel and the FPC, facilitating the separation of the mandrel from the FPC roll. Specifically, the clamping arm of the third jaw is contoured to the prismatic end of the mandrel to ensure that the mandrel rotates synchronously with the rotation of the third jaw.

[0032] The FPC clamping mechanism 32 is used to clamp a wound FPC roll. It includes a fourth jaw 321 and a bidirectional lateral movement drive module 322 that drives the fourth jaw 321 to move horizontally along a first direction and a second direction. In order not to damage the FPC roll during clamping, the clamping end of the fourth jaw 321 has a contoured clamping groove 323 adapted to the curvature of the FPC roll. The contoured clamping groove extends along the second direction (coaxially arranged with the mandrel). The fourth jaw 321 can clamp the FPC roll and release it from the cylindrical end of the mandrel.

[0033] Preferably, to improve heating efficiency and uniformity, the rod release device 3 further includes an auxiliary heating mechanism 33. This auxiliary heating mechanism 33 is located at the end of the clamped mandrel away from the heating clamping mechanism 31. It includes a heating sleeve 331 and a second transverse drive member 332 that drives the heating sleeve 331 to move axially (in the second direction) along the mandrel. A heat insulation pad is provided between the heating sleeve 331 and the second transverse drive member 332 to prevent heat transfer to the drive member. The heating sleeve 331 has an axially extending heating perforation (not shown) coaxially arranged with the third gripper 311, the inner diameter of which is slightly larger than the diameter of the cylindrical end of the mandrel. During operation, the second transverse drive member 332 drives the heating sleeve 331 to fit over the cylindrical end of the mandrel for heating, cooperating with the heating clamping mechanism 31 to achieve synchronous and rapid heating of both ends of the mandrel. After heating is completed, the second transverse drive member 332 drives the heating sleeve 331 back to its original position to prevent interference with the separation of the FPC roll.

[0034] Preferably, to precisely control the separation force and avoid damaging the FPC, the FPC clamping mechanism 32 is also equipped with a force detection unit. Specifically, the moving end of the bidirectional lateral drive module 322 is equipped with a connecting plate, and the fourth gripper 321 is mounted on the connecting plate 324 via a slide rail slider. The slide rail 325 is parallel to the axis of the clamped mandrel. A fixing plate 326 is fixed to the end of the slide rail 325 away from the prismatic structure of the mandrel, and a tension sensor 327 is provided between the fourth gripper 321 and the fixing plate 326. When the fourth gripper 321 pulls the FPC roll apart from the mandrel, the tension sensor 327 can monitor the tension value in real time. Furthermore, due to the use of the slide rail structure, stress in other directions can be offset, ensuring the accuracy of the measurement and thus improving the stability of the separation process.

[0035] When the FPC roll that has completed the winding process is transferred to the separation station, the prismatic end of the mandrel is first stably clamped by the third gripper 311. The third gripper 311 conducts heat to the mandrel. At the same time, the second lateral drive 332 drives the heating sleeve 331 to move, so that the heating sleeve 331 is fitted onto the outer circumference of the cylindrical end of the mandrel, and the mandrel is heated synchronously. After a certain period of heating, the adhesive on the outer circumference of the mandrel melts, the fourth gripper 321 approaches and clamps the FPC roll, and the second lateral drive 332 drives the heating sleeve 331 to return to its original position. The second rotation drive 312 drives the third gripper 311 to rotate and swing, so that the adhesive layer between the mandrel and the FPC roll is separated. The fourth gripper 321 maintains the clamping state of the FPC roll, while the bidirectional lateral drive module 322 drives the third gripper 311 to move horizontally along the second direction, moving the FPC roll away from the mandrel. Until most of the FPC roll has detached from the mandrel, the third gripper 311 opens and continues to move horizontally in the second direction. There is only a partial connection between the FPC roll and the end of the mandrel (the separated part of the FPC roll is in an inclined hanging state under the action of gravity). The third gripper 311 moves to the inclined hanging end of the FPC roll and performs a clamping action. Its clamping arm contacts the end of the FPC roll during the retraction process, which can knock the FPC roll down, so that the separated FPC roll falls into the receiving box 34 below.

[0036] The FPC roll that falls into receiving box 34 continues to flow to the assembly station. Please refer to [link / reference]. Figure 10 The assembly device 4 includes a temporary storage platform 41, a rotating bearing mechanism 42, a third dispensing mechanism 43, and a transport mechanism 44.

[0037] The temporary storage platform 41 is located on the machine base and has a vertically extending temporary storage slot 411 for placing the outer casing 63 (the outer casing 63 is loaded by an external robot arm).

[0038] The rotating support mechanism 42 includes a fixture platform 421, a third rotating drive 423 for driving the fixture platform 421 to rotate, and a fourth rotating drive 424 for driving the fixture platform 421 and the third rotating drive 423 to swing as a whole. The fixture platform 421 has protruding positioning pins 422, each with circumferential vacuum suction holes for positioning and adsorbing rolled FPC. The third rotating drive 423 drives the fixture platform 421 to rotate around the axial direction of the positioning pins 422; the fourth rotating drive 424 drives the fixture platform 421 to rotate, switching the positioning pins 422 between a vertical state (for loading the FPC roll) and a horizontal state (for applying adhesive to the circumferential direction of the FPC roll).

[0039] The third dispensing mechanism 43 includes a third dispensing head 431 and a third three-axis motion drive module 432 that drives the third dispensing head 431 to move in multiple directions, for applying adhesive to the outer peripheral surface of the roll-shaped FPC sleeved on the positioning post 422.

[0040] The conveying mechanism 44 connects the temporary storage platform 41 and the rotating bearing mechanism 42, and includes a material transfer gripper 441 and a fourth three-axis motion drive module that drives the material transfer gripper 441 to move in multiple directions. After the FPC roll is coated with adhesive, the rotating bearing mechanism 42 rotates the FPC roll back to a vertical position, and the conveying mechanism 44 picks up the outer shell from the temporary storage platform 41 and places it on the outer periphery of the FPC roll from above to form the finished product.

[0041] Preferably, in this embodiment, in order to save equipment space and equipment cost, the third dispensing mechanism 43 and the conveying mechanism 44 share a set of three-axis moving drive modules, that is, the third dispensing head 431 and the material transfer gripper 441 are both arranged on the moving end of the third three-axis moving drive module 432.

[0042] Finally, the finished product is transported to the testing station. For example... Figure 13 As shown, the testing device 5 includes a testing fixture 51, a vision inspection unit, and a finished product clamping and transporting mechanism 53.

[0043] The testing fixture 51 has a vertically extending receiving groove 511 for temporarily storing finished products.

[0044] The visual inspection unit includes a light source 521 and an inspection camera 522 arranged vertically opposite each other. The inspection camera 522 is connected to a fifth lifting drive 523, enabling the image capture height to be adjustable to accommodate products of different lengths and sizes.

[0045] The finished product clamping and handling mechanism 53 includes a detection gripper 531, a sixth lifting drive 532 for raising and lowering the detection gripper 531, a rotation drive 533 for rotating the detection gripper 531 around a horizontal axis, and a sixth lateral drive 534 for moving the detection gripper 531 horizontally toward the vision inspection unit. During inspection, the detection gripper 531 grips the finished product from the receiving slot 511 and moves to the space between the light source 521 and the inspection camera 522 under the drive of the sixth lifting drive 532 and the sixth lateral drive 534. The inspection camera 522 takes a picture of one axial end face of the finished product, and then the rotation drive 533 drives the detection gripper 531 to rotate 180 degrees to take a picture of the other axial end face. The roundness of the two end faces is analyzed by image processing algorithms to determine whether the finished product meets the quality requirements. After both axial ends of the finished product are inspected, it is removed and unloaded by an external robot.

[0046] The above are merely embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. An FPC winding and assembly production line, characterized in that, The machine includes a bonding station, a winding station, a rod removal station, an assembly station, and an inspection station arranged sequentially along the production direction. Corresponding to each station are the following: Adhesive device (1) is used to bond and fix the mandrel to one end of the sheet FPC; A winding device (2) is used to wind and bond the remaining portion of the FPC to the mandrel to form an FPC roll; A mandrel release device (3) is used to heat the mandrel and separate the mandrel from the FPC roll; Assembly device (4) is used to apply glue to the outer periphery of the separated FPC roll and fit it with a shell to form a finished product; The inspection device (5) is used to visually inspect both ends of the finished product along the axial direction to determine its roundness. The machine is equipped with a handling robot on its exterior, which is used to connect two adjacent workstations in sequence to facilitate product transfer.

2. The FPC winding and assembly production line according to claim 1, characterized in that, The bonding device (1) includes: An adhesive support fixture (11) is movably disposed on the machine base along a first direction. The adhesive support fixture has a first support plane (115) for adsorbing and fixing the FPC, and a first mounting groove (116) extending through along a second direction for accommodating the mandrel. The first dispensing mechanism (12) includes a first dispensing head (121) and a first three-axis motion drive module (122) for driving the first dispensing head (121) to move in multiple directions, for applying adhesive to the portion of the FPC that is carried corresponding to the first mounting groove (116). The mandrel clamping mechanism (13) includes two first clamping members disposed opposite to each other on both sides of the adhesive bearing fixture (11) along the second direction, for clamping both ends of the mandrel and pressing the mandrel into the first mounting groove (116) so that the mandrel is bonded to the FPC adhesive portion; The first transverse drive module (14) is used to drive the adhesive bearing fixture (11) to reciprocate along the first direction.

3. The FPC winding and assembly production line according to claim 2, characterized in that, The adhesive bearing fixture (11) includes: Fixture base plate (111); The first carrier plate (112) is floatingly supported on the fixture base plate (111) by a number of vertically arranged first guide rods (113) and a first buffer spring (114) sleeved on the first guide rods (113). The first bearing plane (115) and the first placement groove (116) are formed on the upper surface of the first carrier plate (112). The first bearing plane (115) is provided with a vacuum adsorption hole (118) and a positioning block (117) for defining the FPC placement area is provided around it.

4. The FPC winding and assembly production line according to claim 2, characterized in that, Each of the first clamping components includes a first gripper (131) and a first lifting drive (132) that drives the first gripper (131) to move vertically up and down. Among them, the inner side of the clamping arm of one set of first jaws (131) is provided with a prism-shaped groove that matches the prism structure end of the mandrel, and the inner side of the clamping arm of another set of first jaws (131) is provided with an arc-shaped groove that matches the cylindrical end of the mandrel.

5. The FPC winding and assembly production line according to claim 1, characterized in that, The winding device (2) includes: A winding support fixture (21) is movably disposed on the machine base along a first direction. It has a second carrier plate (211) that can float up and down. The upper surface of the second carrier plate (211) forms a second bearing plane and a second mounting groove extending through along a second direction for mounting the mandrel and FPC that have been bonded. The second dispensing mechanism (22) includes a second dispensing head (221) and a second three-axis motion drive module (222) that drives the second dispensing head (221) to move in multiple directions. The rotating clamping mechanism (23) includes two sets of second clamping members arranged opposite to each other on both sides of the winding support fixture (21) along the second direction. Each set of second clamping members is configured to be liftable and used to clamp the two ends of the mandrel and drive the mandrel to rotate. The auxiliary pressing mechanism (24) includes a pressing roller (241) located directly above the second mounting groove, and a roller lifting drive (242) for driving the pressing roller (241) to rise and fall, for pressing the wound FPC at all times during the winding process.

6. The FPC winding and assembly production line according to claim 1, characterized in that, The rod release device (3) includes: The heating clamping mechanism (31) is used to clamp the prismatic end of the mandrel, including a third jaw (311), a second rotary drive (312) that drives the third jaw (311) to rotate around the clamping axis, and a heater (313) connected to the clamping arm of the third jaw (311). The clamping arm of the third jaw (311) is configured to conform to the prismatic end of the mandrel. The FPC clamping mechanism (32) includes a fourth jaw (321) and a bidirectional transverse drive module (322) for driving the fourth jaw (321) to move horizontally along a first direction and a second direction. The clamping end of the fourth jaw has a contoured clamping groove (323) adapted to the curvature of the FPC roll for clamping the FPC roll to come out from the cylindrical end of the mandrel.

7. The FPC winding and assembly production line according to claim 6, characterized in that, The rod release device (3) also includes an auxiliary heating mechanism (33), which is located at the end of the clamped mandrel away from the clamping heating mechanism (31); The auxiliary heating mechanism (33) includes a heating sleeve (331) and a second transverse drive (332) that drives the heating sleeve (331) to move axially along the mandrel. The heating sleeve (331) has a heating through hole that extends axially and is coaxially arranged with the third gripper (311). The inner diameter of the heating through hole is slightly larger than the diameter of the cylindrical end of the mandrel.

8. The FPC winding and assembly production line according to claim 6, characterized in that, The FPC clamping mechanism (32) is also equipped with a force detection unit; the moving end of the bidirectional transverse drive module (322) is equipped with a connecting plate (324), the fourth gripper (321) is mounted on the connecting plate (324) through a slider of a slide rail (325), the slide rail (325) is parallel to the axis of the clamped mandrel; a fixing plate (326) is fixed at one end of the slide rail (325) away from the mandrel prism structure, and a tension sensor (327) is provided between the fourth gripper (321) and the fixing plate (326).

9. The FPC winding and assembly production line according to claim 1, characterized in that, The assembly device (4) includes: A temporary storage platform (41) having a vertically extending temporary storage slot (41) for placing the outer casing; The rotating support mechanism (42) includes a fixture platform (421), a third rotating drive (421) for driving the fixture platform (421) to rotate, and a fourth rotating drive (424) for driving the fixture platform (421) and the third rotating drive (423) to swing as a whole; the fixture platform (421) is provided with a protruding positioning post (422), and the positioning post (422) has a vacuum adsorption hole in its circumference for positioning and adsorbing the rolled FPC; the third rotating drive is used to drive the fixture platform to rotate around the axial direction of the positioning post; the fourth rotating drive is used to drive the fixture platform to rotate, so that the positioning post switches between a vertical state and a horizontal state; The third dispensing mechanism (43) includes a third dispensing head (431) and a third three-axis motion drive module (431) for driving the third dispensing head (431) to move in multiple directions, for applying adhesive to the outer peripheral surface of the roll-shaped FPC positioned on the fixture platform (421). The conveying mechanism (44) is used to connect the temporary storage platform (41) and the rotating bearing mechanism (42), including a material transfer gripper (441) and a fourth three-axis motion drive module that drives the material transfer gripper (441) to move in multiple directions.

10. The FPC winding and assembly production line according to claim 1, characterized in that, The detection device (5) includes: The testing fixture (51) has a vertically extending receiving groove (511) for temporarily storing finished products; The visual inspection unit (52) includes a light source (521) and an inspection camera (522) arranged opposite each other in the vertical direction. The finished product clamping and handling mechanism (53) includes a detection gripper (531), a sixth lifting drive (532) for driving the detection gripper (531) to rise and fall, a rotation drive (533) for driving the detection gripper (531) to rotate around a horizontal axis, and a sixth lateral drive (534) for driving the detection gripper (531) to move horizontally toward the vision detection unit (52).

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