Circuit board turnover machine

Abstract

The invention discloses a circuit board upender which comprises a supporting platform, and the front end and the rear end of the supporting platform are open ends; a driving device; a three-dimensional moving mechanism; the clamp assembly is arranged on the supporting platform, the clamp assembly is used for fixing the flexible circuit board, the clamp assembly is used for being matched with the driving device to drive the flexible circuit board to move along the supporting platform, and meanwhile the clamp assembly can drive the flexible circuit board to overturn up and down; and the supporting assembly is arranged on the supporting platform, and the supporting assembly is used for supporting the flexible circuit board during surface mounting, so that deformation or dislocation of the flexible circuit board in the surface mounting and welding process can be effectively avoided, accurate surface mounting and welding quality of elements are ensured, and the working intensity of operators is reduced.

Description

Technical Field

[0001] This invention relates to the field of circuit board processing technology, specifically to a circuit board flipping machine. Background Technology

[0002] With the increasing demands for functional integration and size in electronic products, flexible printed circuit boards (FPCs) are widely used in mobile phones, wearable devices, medical devices, automotive electronics, and other fields due to their excellent flexibility, thinness, and customizability. However, the design and manufacturing of FPCs presents greater challenges compared to traditional rigid circuit boards, especially in the surface mount technology (SMT) process. During double-sided SMT, the soft and thin nature of FPCs makes them prone to deformation, damage, or positioning errors, significantly complicating the production process.

[0003] Existing double-sided surface mount technology (SMT) typically involves two main steps: First, components are mounted on the first side of the flexible circuit board using a pick-and-place machine. Next, the mounted circuit board is sent to a reflow oven for soldering. After the components on the first side are soldered, the circuit board is cooled and removed. Then, the circuit board is flipped over and manually placed into the pick-and-place machine for mounting and soldering on the second side. During this process, due to the flexibility of the flexible circuit board itself, specific fixtures or support devices are often required to ensure its stability and positioning accuracy during mounting and soldering, and to avoid deformation or damage to the circuit board.

[0004] Currently, most production lines still rely on manual operation for flipping, positioning, and placement processes. Especially when placing components on the second side, workers must be careful to avoid crushing the circuit board or damaging previously soldered components due to excessive force. During the operation, workers need to repeatedly adjust the posture of the circuit board to ensure that the placement machine can accurately align the placement position of the components on the second side. This manual operation method not only increases the labor cost in the production process but also increases the workload of the operators. Furthermore, due to the uncontrollable factors in manual operation, it is easy to affect production efficiency and product quality consistency.

[0005] Therefore, we propose a circuit board flipping machine. Summary of the Invention

[0006] The purpose of this invention is to provide a circuit board flipping machine to solve the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: a circuit board flipping machine, comprising: The support platform has open ends at both the front and rear. Drive unit; Three-dimensional moving mechanism; A clamping assembly is disposed on a support platform. The clamping assembly is used to fix a flexible circuit board. The clamping assembly is used in conjunction with a driving device to drive the flexible circuit board to move along the support platform. At the same time, the clamping assembly can also drive the flexible circuit board to flip up and down. A support component is disposed on a support platform and is used to provide support when the flexible circuit board is mounted.

[0007] Preferably, the clamp assembly includes: The fixture plate has a hollow center and a clamping plate is provided on it. The clamping plate and the fixture plate are used to fix the flexible circuit board. The clamping plate has slots at its four corners. The clamping plate is slidably connected to the clamping plate at its four corners. A spring is provided between the abutting block and the fixture plate. One end of the spring is fixedly connected to the abutting block and the other end is fixedly connected to the fixture plate.

[0008] Preferably, the clamping plate is fixedly connected to both sides of the clamping block, a rotating block is provided on one side of the clamping block, a sliding groove is provided in the clamping block, an arc-shaped block is slidably connected in the sliding groove of the clamping block, a second spring is provided in the clamping block, one end of the second spring is fixedly connected to the other end of the arc-shaped block, an arc groove is provided on the rotating block for the arc-shaped block to be inserted into, a push-out block is slidably connected on the rotating block, the push-out block abuts against the arc-shaped block, and a triangular block is fixedly connected to the top of the push-out block; Roller components are disposed at both ends of the support platform and are used to press the triangular block into the rotating block.

[0009] Preferably, the clamp assembly further includes: A slider is slidably connected to a support platform. A drive rod is rotatably connected inside the slider. The drive rod is fixedly connected to a rotating block. A first roller is fixedly connected to a section of the drive rod away from the rotating block. A second roller is provided on one side of the first roller. A drive belt connects the first roller and the second roller. Motor 1, the outer casing of motor 1 is fixedly connected to the slider, and the end of the internal rotating shaft of motor 1 is fixedly connected to roller 2.

[0010] Preferably, the support component includes: The housing has several support rods rotatably connected to its top. The support rods are L-shaped and a folding drive mechanism is provided between the support rods and the housing. The folding drive mechanism is used to drive the support rods to rotate on the housing. The ends of the support rods are fixedly connected to abutment columns, and the surfaces of the abutment columns are covered with a rubber layer. The housing moves within the support platform space in conjunction with a three-dimensional moving mechanism.

[0011] Preferably, the folding drive mechanism includes: Motor 2 is fixedly installed inside the housing. A threaded rod is fixedly connected to the end of the internal shaft of Motor 2. The end of the threaded rod away from Motor 2 is rotatably connected to the housing. A sliding block is threadedly connected to the threaded rod. The sliding block is slidably connected to the inner wall of the housing. A hinge rod 1 is provided on the outside of the sliding block. One end of the hinge rod 1 is hinged to the sliding block and the other end is hinged to the support rod.

[0012] Preferably, a secondary support rod is rotatably connected to the support rod, and the secondary support rod is flush with the top of the support rod, and the two together support the flexible circuit board.

[0013] Preferably, a bevel gear is fixedly connected to one end of the support rod, a gear is rotatably connected to the support rod at the bevel gear, and a bevel gear is fixedly connected to the end of the gear that meshes with the bevel gear. A rack is slidably connected to a support rod and meshes with a gear. A hinge rod is provided at one end of the rack near the housing. One end of the hinge rod is hinged to the rack and the other end is hinged to the outer wall of the housing.

[0014] This invention has at least the following beneficial effects: 1. Workers can place the flexible circuit board on the fixture plate and use the support components to support the flexible circuit board from the bottom, thereby preventing the flexible circuit board from slipping off the fixture plate. After placing the flexible circuit board on the fixture plate, the clamping plate can be pressed into the fixture plate, so that the clamping plate and the fixture plate clamp the flexible circuit board tightly. By clamping and fixing the edge of the flexible circuit board, the displacement of the flexible circuit board during the placement process is reduced, ensuring the accuracy and stability of the placement operation. 2. The connection between the fixture plate and the rotating block adopts a detachable design. The staff can prepare multiple fixture plates in advance and directly fix the fixture plates and rotating blocks when it is necessary to mount the components. After the first side of the flexible circuit board is mounted, the fixture plate and the flexible circuit board are welded together through the conveyor belt of the reflow oven. In this process, since the flexible circuit board does not directly contact the groove surface of the conveyor belt, the misalignment of electronic components during the handover process is avoided as much as possible. 3. When it is necessary to mount a chip on the second side of the flexible circuit board, the folding drive mechanism drives the support rod to fold. The top of the folded support rod forms a quadrilateral structure. At this time, the abutment post at the top of the folded support rod can cooperate with the three-dimensional moving mechanism to contact the flexible circuit board. Since the contact surface of the abutment post is small, it can effectively avoid contact with the electronic components already mounted on the first side, while still providing necessary support to ensure the stability of the circuit board. During the contact process, the rubber layer wrapped on the abutment post can significantly reduce the stress generated when in contact with the surface of the flexible circuit board, thereby avoiding damage or deformation to the flexible circuit board. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the fixture plate structure of the present invention; Figure 4 This is a schematic cross-sectional view of the rotating block structure of the present invention; Figure 5 This is a schematic diagram of the triangular block structure of the present invention; Figure 6 This is a schematic diagram of the slider structure of the present invention; Figure 7 This is a schematic diagram of the supporting component structure of the present invention; Figure 8 This is a schematic diagram of the supporting auxiliary rod structure of the present invention; Figure 9 This is a schematic diagram of the internal structure of the support rod of the present invention.

[0016] In the diagram: 10. Support platform; 11. Drive device; 12. Three-dimensional moving mechanism; 20. Fixture assembly; 211. Fixture plate; 212. Clamping plate; 213. Abutting block; 214. Spring 1; 221. Positioning block; 222. Rotating block; 223. Arc block; 224. Arc groove; 225. Push-out block; 226. Triangular block; 227. Roller component; 231. Slider; 232. Drive rod; 233. Roller 1; 234. Roller 2; 235. Drive belt; 236. Motor 1; 30. Support assembly; 31. Housing; 32. Support rod; 33. Folding drive mechanism; 34. Abutting column; 35. Rubber layer; 41. Bevel gear 1; 42. Gear 1; 43. Bevel gear 2; 44. Rack; 45. Hinge rod two; 331. Motor two; 332. Threaded rod; 333. Sliding block; 334. Hinge rod one; 321. Support rod. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1: In the actual process of mounting electronic components on both sides of a flexible circuit board, one side of the circuit board is usually precisely mounted using a pick-and-place machine. After mounting, the circuit board is sent to a reflow oven for heating to complete the soldering and fixing of the electronic components. However, due to the relatively soft nature of flexible circuit boards, if they are placed directly into the reflow oven without proper support, the circuit board may deform or shift, which may lead to misalignment or poor soldering of electronic components. This embodiment is invented to solve the above problems.

[0019] Please see Figure 1-9 The present invention provides a technical solution: a circuit board flipping machine, comprising: Support platform 10, wherein both the front and rear ends of the support platform 10 are open; Drive device 11, the drive device 11 is disposed on the outside of the support platform 10; A three-dimensional moving mechanism 12 is disposed within the support platform 10; It should be noted that both the drive device 11 and the three-dimensional moving mechanism 12 are based on existing technologies, and will not be described in detail here. The clamping assembly 20 is disposed on the support platform 10. The clamping assembly 20 is used to fix the flexible circuit board. The clamping assembly 20 is used to cooperate with the driving device 11 to drive the flexible circuit board to move along the support platform 10. At the same time, the clamping assembly 20 can also drive the flexible circuit board to flip up and down. Support component 30, which is disposed on support platform 10, is used to provide support when flexible circuit board is mounted; It is worth noting that the drive device 11 drives the clamp assembly 20 to move to one end of the support platform 10. The operator fixes the flexible circuit board on the clamp assembly 20. After fixing, the drive device 11 drives the clamp assembly 20 again to move the flexible circuit board to the bottom of the pick-and-place machine. At this time, the pick-and-place machine, together with the support assembly 30, performs a precise placement operation on the first side of the flexible circuit board. After the first side is placed, the drive device 11, together with the clamp assembly 20, sends the flexible circuit board into the reflow oven for soldering. After welding, the clamping assembly 20 fixes the flexible circuit board and flips it to the reverse side. Then, the drive device 11 sends the flipped circuit board to the bottom of the pick and place machine again, and works in conjunction with the support assembly 30 to place the second side of the flexible circuit board. After the placement is completed, the circuit board is sent to the reflow oven for welding. Finally, the soldered flexible circuit board is removed, completing the entire double-sided mounting and soldering process. This method effectively avoids deformation or misalignment of the flexible circuit board during mounting and soldering, ensuring accurate component placement and soldering quality, and reducing the workload of operators.

[0020] Further as Figure 2 , Figure 3 and Figure 6 As shown, it is worth noting that the clamp assembly 20 includes: A clamping plate 211 is hollow in the middle. A clamping plate 212 is provided on the clamping plate 211. The clamping plate 212 and the clamping plate 211 are used to fix the flexible circuit board. The clamping plate 212 has slots at its four corners. The clamping plate 211 is slidably connected to the four corners of the clamping plate 212 with abutment blocks 213. A spring 214 is provided between the abutment blocks 213 and the clamping plate 211. One end of the spring 214 is fixedly connected to the abutment block 213 and the other end is fixedly connected to the clamping plate 211. The abutment block 213 can be inserted into the slot of the clamping plate 212. A lever is provided at the top of the abutment block 213 and the lever protrudes outside the clamping plate 211. The abutment block 213 can be separated from the slot by moving the lever. It should be noted that the operator can place the flexible circuit board on the fixture plate 211, and at the same time, the support component 30 can support the flexible circuit board from the bottom, thereby preventing the flexible circuit board from slipping off the fixture plate 211. After the flexible circuit board is placed on the fixture plate 211, the clamping plate 212 can be pressed into the fixture plate 211, so that the clamping plate 212 and the fixture plate 211 clamp the flexible circuit board. By clamping and fixing the edge of the flexible circuit board, the displacement of the flexible circuit board during the placement process is reduced, ensuring the accuracy and stability of the placement operation.

[0021] Further as Figure 3 As shown, it is worth noting that the clamping plate 211 is fixedly connected to both sides of the clamping block 221, and a rotating block 222 is provided on one side of the clamping block 221. A sliding groove is provided in the clamping block 221, and an arc-shaped block 223 is slidably connected in the sliding groove of the clamping block 221. A second spring is provided in the clamping block 221, and one end of the second spring is fixedly connected to the other end of the arc-shaped block 223. An arc-shaped groove 224 is provided on the rotating block 222 for the arc-shaped block 223 to be inserted into. A push-out block 225 is slidably connected on the rotating block 222, and the push-out block 225 abuts against the arc-shaped block 223. A triangular block 226 is fixedly connected to the top of the push-out block 225. Roller component 227 is disposed at both ends of the support platform 10. The roller component 227 is used to press the triangular block 226 into the rotating block 222. It should be noted that, in the initial state, the locking blocks 221 on both sides of the clamping plate 211 are engaged with the rotating block 222 through the arc-shaped block 223. When it is necessary to separate the clamping plate 211 from the rotating block 222, the rotating block 222 is moved to the position of the roller component 227 by the drive device 11. As the rotating block 222 moves, the roller component 227 contacts the triangular block 226. The triangular block 226 moves downward until the push-out block 225 at the bottom of the triangular block 226 pushes the arc-shaped block 223 out of the rotating block 222. At this time, the arc-shaped block 223 will retract into the groove in the locking block 221, thereby realizing the separation of the clamping plate 211. It is worth noting that, with this method, the connection between the fixture plate 211 and the rotating block 222 adopts a detachable design. The staff can prepare multiple fixture plates 211 in advance and directly fix the fixture plate 211 and the rotating block 222 when it is necessary to mount the chip. After the first side of the flexible circuit board is mounted, the fixture plate 211 and the flexible circuit board are welded together through the conveyor belt of the reflow oven. In this process, since the flexible circuit board does not directly contact the groove surface of the conveyor belt, the misalignment of electronic components during the handover process is avoided as much as possible.

[0022] Further as Figure 4 and Figure 5 As shown, it is worth noting that the clamp assembly 20 further includes: A slider 231 is slidably connected to a support platform 10. A drive rod 232 is rotatably connected inside the slider 231. The drive rod 232 is fixedly connected to a rotating block 222. A first roller 233 is fixedly connected to a section of the drive rod 232 away from the rotating block 222. A second roller 234 is provided on one side of the first roller 233. A drive belt 235 connects the first roller 233 and the second roller 234. Motor 236, the outer shell of motor 236 is fixedly connected to slider 231, and the end of the rotating shaft inside motor 236 is fixedly connected to roller 234; It should be noted that the motor 236 drives the roller 234 to rotate, and the roller 234 drives the roller 233 to rotate through the drive belt 235, which in turn drives the rotating block 222 to rotate through the drive rod 232. This method allows for the control of the flexible circuit board on the fixture plate 211 to be flipped.

[0023] In summary, by pre-fixing the flexible circuit board to be mounted on the fixture plate 211, it can be ensured that the flexible circuit board remains stable and undeformed during various operations such as mounting, soldering, and flipping. This effectively avoids poor soldering, component misalignment, or solder joint quality problems caused by circuit board deformation or misalignment, thereby improving the accuracy and reliability of the entire production process.

[0024] Example 2: In the actual placement process, since the flexible circuit board is relatively soft, it is necessary to support its bottom surface. When placing the first side, the second side can be supported by means such as a flat plate. With the help of the placement machine, the first side of the flexible circuit board can be placed. However, after the first side is placed and soldered, when flipping it over to place the second side, the electronic components on the first side form an uneven state on the surface of the flexible circuit board. If the first side is directly supported by a flat plate, the electronic components may be damaged or moved, resulting in defective products. To solve the above problems, the above embodiment is further improved. The support component 30 includes: The housing 31 has several support rods 32 rotatably connected to its top. The support rods 32 are L-shaped. A folding drive mechanism 33 is provided between the support rods 32 and the housing 31. The folding drive mechanism 33 is used to drive the support rods 32 to rotate on the housing 31. An abutment post 34 is fixedly connected to the end of the support rod 32. The surface of the abutment post 34 is covered with a rubber layer 35. The housing 31 moves within the space of the support platform 10 in cooperation with the three-dimensional moving mechanism 12. It should be noted that when the first side of the flexible circuit board is being patched, the folding drive mechanism 33 works in conjunction with the support rod 32 to provide stable support by unfolding the support rod 32. At least four support rods 32 are provided. After unfolding, the support rod 32 can move upward in conjunction with the three-dimensional moving mechanism 12 to provide support from the bottom of the flexible circuit board. In this way, the electronic components on the flexible circuit board are less likely to be misaligned during patching and movement, ensuring the accuracy of patching. When it is necessary to attach a chip to the second side of the flexible circuit board, the folding drive mechanism 33 drives the support rod 32 to fold. The top of the folded support rod 32 forms a quadrilateral structure. At this time, the abutment post 34 at the top of the folded support rod 32 can cooperate with the three-dimensional moving mechanism 12 to contact the flexible circuit board. Since the contact surface of the abutment post 34 is small, it can effectively avoid contact with the electronic components already attached to the first side, while still providing necessary support to ensure the stability of the circuit board. During the contact process, the rubber layer 35 wrapped on the abutment post 34 can significantly reduce the stress generated when in contact with the surface of the flexible circuit board, thereby avoiding damage or deformation to the flexible circuit board.

[0025] Further as Figure 7 As shown, it is worth noting that the folding drive mechanism 33 includes: Motor 2 331 is fixedly installed inside housing 31. A threaded rod 332 is fixedly connected to the end of the rotating shaft inside motor 2 331. The end of the threaded rod 332 away from motor 2 331 is rotatably connected to housing 31. A sliding block 333 is threadedly connected to the threaded rod 332. The sliding block 333 is slidably connected to the inner wall of housing 31. A hinge rod 334 is provided on the outside of the sliding block 333. One end of the hinge rod 334 is hinged to the sliding block 333 and the other end is hinged to the support rod 32. It should be noted that when the first side of the flexible circuit board needs to be mounted, the second motor 331 drives the threaded rod 332 to rotate, causing the sliding block 333 to slide along the axial direction of the threaded rod 332. As the sliding block 333 moves along the threaded rod 332, the first hinge rod 334 drives the support rod 32 to unfold, thereby providing necessary support for the flexible circuit board. After unfolding, the support rod 32 can stably support the bottom surface of the flexible circuit board, preventing the circuit board from shifting or deforming during the mounting process, and ensuring the mounting accuracy of the electronic components on the first side. Folding process: When it is necessary to attach a chip to the second side of the flexible circuit board, the motor 2 331 drives the threaded rod 332 to rotate in the reverse direction. The sliding block 333 slides back along the threaded rod 332. The retraction of the sliding block 333 drives the hinge rod 1 334 to fold the support rod 32. The top of the folded support rod 32 forms a smaller contact surface, which facilitates contact with the flexible circuit board and avoids contact with the electronic components already attached to the first side. The folded support rod 32 provides appropriate support for the circuit board and reduces the contact area with the electronic components, thereby avoiding damage to the components.

[0026] Further as Figure 7 and Figure 8 As shown, it is worth noting that a support sub-rod 321 is rotatably connected to the support rod 32, and the support sub-rod 321 is flush with the top of the support rod 32. The two together support the flexible circuit board. By setting a secondary support rod 321 on the support rod 32, the secondary support rod 321 can provide additional support for the positions that the support rod 32 fails to support, thereby enhancing the stability of the flexible circuit board during the placement process. The secondary support rod 321 can automatically work together with the support rod 32 while the support rod 32 is unfolded, covering the areas that the support rod 32 does not support, ensuring that the entire bottom surface of the circuit board is fully supported.

[0027] Further as Figure 8 As shown, it is worth noting that the support rod 321 is fixedly connected to a bevel gear 41 at one end of the support rod 32, and the support rod 32 is rotatably connected to a gear 42 at the bevel gear 41. The end of the gear 42 is fixedly connected to a bevel gear 43 that meshes with the bevel gear 41. Rack 44, which is slidably connected to support rod 32, meshes with gear 42, and has a hinge rod 45 at one end near housing 31. One end of the hinge rod 45 is hinged to rack 44 and the other end is hinged to outer wall of housing 31. It should be noted that when it is necessary to support the side with the mounted electronic components, the folding drive mechanism 33 will fold the support rod 32. During the folding process of the support rod 32, the hinge rod 45 will drive the rack 44 to move along the support rod 32. As the rack 44 moves, the rack 44 drives the gear 42 to rotate through the meshing gear 42. The bevel gear 43 fixed at the end of the gear 42 further drives the bevel gear 41 to rotate, thereby causing the bevel gear 41 to drive the support sub-rod 321 to be retracted. Through this process, the support sub-rod 321 is effectively retracted to one side of the support rod 32, avoiding mutual collision between the support sub-rods 321 and ensuring the compactness and stability of the support structure.

[0028] In summary, the precise support component 30 and folding drive mechanism 33 ensure stable support of the flexible circuit board during the placement process, preventing deformation or component displacement. During the first side placement, the support unfolds to provide full support and ensure placement accuracy. During the second side placement, the folded support rod 32 contacts a smaller contact surface, avoiding damage to the electronic components already placed on the first side while providing adequate support. The support sub-rod 321 further enhances support stability and is effectively housed through a precise gear transmission mechanism, preventing mutual collisions and ensuring a compact and efficient operation. This design improves the stability and placement accuracy of the flexible circuit board, prevents damage or deformation, and enhances overall production efficiency.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A circuit board flipping machine, comprising: Support platform (10), the support platform (10) has open ends at both the front and rear ends; Drive unit (11); Three-dimensional moving mechanism (12); Its features are: The clamp assembly (20) is disposed on the support platform (10). The clamp assembly (20) is used to fix the flexible circuit board. The clamp assembly (20) is used to cooperate with the drive device (11) to drive the flexible circuit board to move along the support platform (10). At the same time, the clamp assembly (20) can also drive the flexible circuit board to flip up and down. A support component (30) is disposed on a support platform (10) and is used to provide support when the flexible circuit board is mounted.

2. The circuit board flipping machine according to claim 1, characterized in that: The clamp assembly (20) includes: A clamping plate (211) is hollowed out in the middle. A clamping plate (212) is provided on the clamping plate (211). The clamping plate (212) and the clamping plate (211) are used to fix the flexible circuit board. The clamping plate (212) has slots at its four corners. The clamping plate (211) is slidably connected to the clamping plate (212) at its four corners. A spring (214) is provided between the abutting block (213) and the clamping plate (211). One end of the spring (214) is fixedly connected to the abutting block (213) and the other end is fixedly connected to the clamping plate (211).

3. A circuit board flipping machine according to claim 2, characterized in that: The clamp plate (211) is fixedly connected to two sides with locking blocks (221). A rotating block (222) is provided on one side of the locking block (221). A sliding groove is provided in the locking block (221). An arc-shaped block (223) is slidably connected in the sliding groove of the locking block (221). A second spring is provided in the locking block (221). One end of the second spring is fixedly connected to the other end of the arc-shaped block (223). An arc-shaped groove (224) is provided on the rotating block (222) for the arc-shaped block (223) to be inserted into. A push-out block (225) is slidably connected on the rotating block (222). The push-out block (225) abuts against the arc-shaped block (223). A triangular block (226) is fixedly connected to the top of the push-out block (225). Roller component (227) is disposed at both ends of the support platform (10) and is used to press the triangular block (226) into the rotating block (222).

4. A circuit board flipping machine according to claim 3, characterized in that: The clamp assembly (20) further includes: A slider (231) is slidably connected to a support platform (10). A drive rod (232) is rotatably connected inside the slider (231). The drive rod (232) is fixedly connected to a rotating block (222). A roller 1 (233) is fixedly connected to a section of the drive rod (232) away from the rotating block (222). A roller 2 (234) is provided on one side of the roller 1 (233). A drive belt (235) is connected between the roller 1 (233) and the roller 2 (234). Motor 1 (236), the outer shell of motor 1 (236) is fixedly connected to slider (231), and the end of the internal rotating shaft of motor 1 (236) is fixedly connected to roller 2 (234).

5. A circuit board flipping machine according to any one of claims 1 to 4, characterized in that: The support component (30) includes: The housing (31) has several support rods (32) rotatably connected to its top. The support rods (32) are L-shaped. A folding drive mechanism (33) is provided between the support rods (32) and the housing (31). The folding drive mechanism (33) is used to drive the support rods (32) to rotate on the housing (31). The end of the support rods (32) is fixedly connected to an abutment post (34). The surface of the abutment post (34) is covered with a rubber layer (35). The housing (31) moves within the space of the support platform (10) in cooperation with the three-dimensional moving mechanism (12).

6. A circuit board flipping machine according to claim 5, characterized in that: The folding drive mechanism (33) includes: Motor 2 (331) is fixedly installed inside housing (31). A threaded rod (332) is fixedly connected to the end of the rotating shaft inside motor 2 (331). The end of the threaded rod (332) away from motor 2 (331) is rotatably connected to housing (31). A sliding block (333) is threadedly connected to the threaded rod (332). The sliding block (333) is slidably connected to the inner wall of housing (31). A hinge rod 1 (334) is provided on the outside of the sliding block (333). One end of the hinge rod 1 (334) is hinged to the sliding block (333) and the other end is hinged to the support rod (32).

7. A circuit board flipping machine according to any one of claims 5 or 6, characterized in that: The support rod (32) is rotatably connected to a support sub-rod (321), and the support sub-rod (321) is flush with the top of the support rod (32), and the two together support the flexible circuit board.

8. A circuit board flipping machine according to claim 7, characterized in that: The support rod (321) is fixedly connected to a bevel gear (41) at one end of the support rod (32), and a gear (42) is rotatably connected to the bevel gear (41) at the end of the support rod (32). A bevel gear (43) that meshes with the bevel gear (41) is fixedly connected to the end of the gear (42). A rack (44) is slidably connected to a support rod (32). The rack (44) meshes with a gear (42). A hinge rod (45) is provided at one end of the rack (44) near the housing (31). One end of the hinge rod (45) is hinged to the rack (44) and the other end is hinged to the outer wall of the housing (31).

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