Turnover device for circuit board production

Abstract

The invention relates to the technical field of circuit board processing, and provides a turnover device for circuit board production, which comprises clamping turnover mechanisms, and is characterized in that when a rotary outer cover rotates, the two clamping turnover mechanisms can be driven to revolve at the same time, and at the moment, two abutting rods on each clamping turnover mechanism can slide along the interiors of an outer guide groove and an inner guide groove respectively; according to the circuit board clamping and overturning mechanism, the two pushing plates are arranged, so that the relative positions of the two pushing plates are kept fixed, the two right-angle clamping plates can stably clamp circuit boards, in actual application, a proper number of clamping and overturning mechanisms can be installed according to needs, a plurality of circuit boards can be machined at the same time, and the working efficiency is remarkably improved. When the clamping turnover mechanism is about to rotate to the right front of the rotary outer cover, one of the rotating rollers starts to slide along the inner side of the turnover track, the clamping turnover mechanism is driven by the rotary outer cover to continue to revolve, and the arc turnover block starts to turn over, so that the clamping turnover mechanism turns over to complete automatic turnover work of the circuit board.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board processing, and in particular to a turning device for circuit board production. Background Art

[0002] Circuit boards are the most common structure among electronic components. Existing double-layer circuit board processing requires processing one side of the circuit board first, then manually flipping the circuit board to assist in turning the circuit board over, and then processing the other side of the circuit board. This method is inefficient.

[0003] A search revealed an existing patent (publication number: CN113597114B) that discloses a flipping device for circuit board production. The device comprises two support plates symmetrically fixed to a frame, with a fixed frame positioned between them. Support shafts are fixed to each side of the fixed frame, passing through and rotatably connected to the support plates. Positioning rods are fixed to each side of the fixed frame, each equipped with a positioning block rotatably connected to the rod. A positioning cylinder is also fixed between the two support plates, with a positioning plate fixed to the end of the cylinder's piston rod. Connecting blocks are fixed to the positioning plates at positions corresponding to the positioning blocks, each connected to the corresponding positioning block via a spring. A limiter is fixed between the two support plates on either side of the fixed frame. This device enables automatic 180-degree flipping of circuit boards, eliminating the need for manual flipping and significantly improving circuit board production efficiency.

[0004] However, the above solution still has certain shortcomings. Although it can flip the circuit board during processing, it can only process a single circuit board at a time. That is, after processing the front side of a circuit board, it must be flipped over to process the other side, which reduces work efficiency. In addition, after processing one circuit board, it is necessary to manually remove the circuit board and install the next one, which is cumbersome and inconvenient, further reducing work efficiency.

[0005] In view of this, the present invention provides a turning device for circuit board production. Summary of the Invention

[0006] The present invention provides a turning device for circuit board production, which solves the problem in the related art that the existing circuit board turning mechanism can only process a single circuit board at a time, requires manual disassembly of the circuit board, and has low work efficiency.

[0007] The technical solution of the present invention is as follows: A turning device for circuit board production, comprising: a fixed inner cover and a rotating outer cover rotatably sleeved on the outer side of the fixed inner cover, a cross brace fixedly connected to the interior of the upper port of the rotating outer cover, a plurality of support legs fixedly connected to the inner wall of the top of the fixed inner cover for supporting the fixed inner cover, a frame fixedly connected between the plurality of support legs, a motor fixedly mounted on the top of the frame, the top end of the motor output shaft fixedly connected to the cross brace, and the rotating outer cover is driven by the motor to rotate outside the fixed inner cover; Two clamping and flipping mechanisms are symmetrically arranged on the outside of the rotating outer cover for mounting the circuit board to be processed. During the rotation of the rotating outer cover, the clamping and flipping mechanisms can be driven to revolve. A guide mechanism is arranged on the outside of the rotating outer cover. During the rotation of the clamping and flipping mechanisms driven by the rotating outer cover, the circuit board in the clamping and flipping mechanisms can be clamped or released in cooperation with the transmission of the guide mechanism. A positioning block is provided on one side of the fixed inner cover, and the positioning block is fixedly connected to the supporting leg. A flip track is formed between the positioning block and the fixed inner cover. When the clamping and flipping mechanism revolves along with the rotating outer cover, the clamping and flipping mechanism can be flipped in cooperation with the positioning block and the flip track.

[0008] Preferably, the clamping and flipping mechanism includes an arc-shaped flipping block arranged between the rotating outer cover and the fixed inner cover, and the outer wall of one side of the arc-shaped flipping block is rotatably connected to two rollers. The outer walls of the two rollers on the arc-shaped flipping block in a horizontal state are in contact with the bottom of the fixed inner cover. A fixed sleeve is provided on one side of the arc-shaped flipping block, and the fixed sleeve rotates and passes through the outer wall of the rotating outer cover.

[0009] Preferably, the clamping and flipping mechanism also includes two outer plates arranged in parallel and a rotating rod rotatably sleeved inside the fixed sleeve, one end of the rotating rod is fixedly connected to one of the outer plates, and the other end of the rotating rod is fixedly connected to the outer wall of the arc-shaped flipping block.

[0010] Preferably, two groups of guide and constraint components are symmetrically arranged between the two outer plates, each group of guide and constraint components includes two fixed shafts fixed to the outer walls of the outer plates, and two displacement components are symmetrically arranged between the two groups of guide and constraint components, and an extrusion component is arranged on one side of each displacement component.

[0011] Preferably, the displacement assembly includes a push plate slidably mounted on the outer wall of the fixed shaft, a number of springs are connected between the push plate and the outer plate, the springs are mounted on the outside of the fixed shaft, and a limiting ring is fixedly mounted on the outer wall of each fixed shaft for limiting the push plate.

[0012] Preferably, the displacement assembly further comprises a fixed block fixedly connected to the outer wall of the push plate, and a resistance rod is vertically passed through and fixedly connected to the interior of the fixed block.

[0013] Preferably, the extrusion assembly includes a right-angle clamping plate, an adjusting component is provided between the right-angle clamping plate and the push plate, and a telescopic rod is provided between the right-angle clamping plate and the push plate on both sides of the adjusting component, the telescopic rod includes an inner rod fixed to the outer wall of the right-angle clamping plate and an outer cylinder fixed to the outer wall of the push plate, and the inner rod slides and extends to the inside of the outer cylinder.

[0014] Preferably, the adjusting component includes a connecting piece fixedly connected to the outer wall of the right-angle clamping plate and a threaded barrel rotatably connected to the outer wall of the push plate, a threaded rod is threadedly connected to the inner part of the threaded barrel, and one end of the threaded rod is fixedly connected to the connecting piece.

[0015] Preferably, the guide mechanism includes two inner guide rails and two outer guide rails which are symmetrically arranged in the upper and lower parts. The inner guide rails are located on the inner side of the outer guide rails. The inner guide rails and the outer guide rails are fixedly connected by a connecting frame. The outer walls on the opposite sides of the two inner guide rails are each provided with an inner guide groove, and the outer walls on the opposite sides of the two outer guide rails are each provided with an outer guide groove. The inner guide groove and the outer guide groove match the interference rod.

[0016] Preferably, the outer guide groove is provided with a large convex bend and a small convex bend protruding outward, and the inner guide groove is provided with a large concave bend and a small concave bend concave inward.

[0017] The working principle and beneficial effects of the present invention are: In the present invention, when the motor drives the cross brace and the rotating outer cover to rotate via its output shaft, the rotating outer cover simultaneously drives the two clamping and flipping mechanisms to revolve. At this time, the two abutting rods on each clamping and flipping mechanism can slide along the outer guide groove and the inner guide groove respectively, so that the relative position between the two push plates remains fixed, thereby enabling the two right-angle clamping plates to stably clamp the circuit board, ensuring good stability of the circuit boards in the two clamping and flipping mechanisms during processing, and significantly improving work efficiency. In the present invention, when the clamping and flipping mechanism is about to rotate to the front of the rotating outer cover, the resistance rod disengages from the inner guide groove or the outer guide groove, and one of the rollers begins to slide along the inner side of the flipping track. As the rotating outer cover drives the clamping and flipping mechanism to continue to revolve, the arc-shaped flipping block begins to flip, so that the clamping and flipping mechanism flips to complete the automatic flipping of the circuit board. The operation is simple, convenient, stable and efficient. In the present invention, after the turning over of a circuit board is completed, when the two interference rods move to the large convex bend and the large concave bend respectively, the two interference rods move away from each other and then towards each other. When the two interference rods move away from each other, the two right-angle clamping plates are moved away from each other by means of the fixed block, the push plate, the threaded cylinder and other components, so that the spring is further compressed. This allows the circuit board that was originally stably clamped between the two right-angle clamping plates and has been processed on both the front and back sides to automatically fall off and be unloaded, thereby realizing automatic unloading of the circuit board and further improving work efficiency. In the present invention, after the circuit board is unloaded, when the two interference rods move to the small convex bend and the small concave bend respectively, the two interference rods will similarly move away from each other and then toward each other. The difference is that the degree of separation between the two interference rods is small, ensuring that the circuit board can be placed while not stably clamping the circuit board. In this case, it is convenient for workers to place the circuit board to be processed between the two right-angle clamping plates. Afterwards, the two interference rods move toward each other, automatically clamping the circuit board, so that the circuit board processing work can continue. While achieving automatic flipping of the circuit board, the present invention can simultaneously process multiple circuit boards. It can also utilize the specific trajectory of the large convex bend and the small convex bend in conjunction with the spring assembly while adjusting the position of the clamping and flipping mechanism to achieve a continuous "clamp-relax-automatic unloading" action, automatically completing the unloading work of the circuit board after double-sided processing, and facilitating the loading of the circuit board to be processed. It has a good automation design and high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a turning device for circuit board production proposed by the present invention; Figure 2 This is a schematic diagram of the assembly structure of the rotary outer cover and the clamping and flipping mechanism proposed in the present invention; Figure 3 This is a schematic diagram of the structural composition of the clamping and flipping mechanism proposed in the present invention; Figure 4 This is a schematic diagram of the structural composition of the extrusion component and displacement component proposed in the present invention; Figure 5 This is a schematic diagram of the structural composition of the guide mechanism proposed in the present invention; Figure 6 This is a schematic diagram of the top view of the inner and outer guide rails proposed in the present invention; Figure 7 This is a schematic diagram of the flipping state of the arc-shaped flip block proposed by the present invention; Figure: 1, rotating outer cover; 2, cross brace; 3, fixed inner cover; 31, positioning block; 32, turning track; 4, supporting leg; 5, frame; 6, clamping and turning mechanism; 61, arc-shaped turning block; 62, rotating roller; 63, fixed sleeve; 64, rotating rod; 65, outer plate; 66, fixed shaft; 67, extrusion assembly; 671, right-angle clamping plate; 672, telescopic rod; 673, threaded barrel; 674 , threaded rod; 675, connecting piece; 68, displacement assembly; 681, push plate; 682, spring; 683, limit ring; 684, resistance rod; 685, fixed block; 7, guide mechanism; 71, inner guide rail; 711, inner guide groove; 712, large concave bend; 713, small concave bend; 72, outer guide rail; 721, outer guide groove; 722, large convex bend; 723, small convex bend; 73, connecting frame; 8, motor. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention. Example

[0021] See also Figure 1 、 Figure 2 、 Figure 3 as well as Figure 4 A turning device for circuit board production comprises a fixed inner cover 3 and a rotating outer cover 1 that rotatably fits around the outer side of the fixed inner cover 3. A cross brace 2 is fixedly attached to the interior of the upper port of the rotating outer cover 1. A plurality of support legs 4 are fixedly attached to the inner wall of the top of the fixed inner cover 3 for supporting the fixed inner cover 3. A frame 5 is fixedly attached between the plurality of support legs 4. A motor 8 is fixedly mounted on the top of the frame 5. The top end of the output shaft of the motor 8 is fixedly attached to the cross brace 2. The motor 8 drives the rotating outer cover 1 to rotate outside the fixed inner cover 3. Two clamping and turning mechanisms 6 are symmetrically arranged on the outer side of the rotating outer cover 1 for mounting the circuit boards to be processed. As the rotating outer cover 1 rotates, it can drive the clamping and turning mechanisms 6 to revolve.

[0022] Specifically, the clamping and flipping mechanism 6 includes an arc-shaped flipping block 61 disposed between the rotating outer cover 1 and the fixed inner cover 3. Two rollers 62 are rotatably connected to one side of the outer wall of the arc-shaped flipping block 61. When the arc-shaped flipping block 61 is horizontal, the outer walls of the two rollers 62 abut against the bottom of the fixed inner cover 3. A fixed sleeve 63 is disposed on one side of the arc-shaped flipping block 61, which rotatably extends through the outer wall of the rotating outer cover 1. The clamping and flipping mechanism 6 also includes two parallel outer plates 65 and a rotating rod 64 rotatably sleeved within the fixed sleeve 63. One end of the rotating rod 64 is fixedly connected to one of the outer plates 65, and the other end of the rotating rod 64 is fixedly connected to the outer wall of the arc-shaped flipping block 61.

[0023] Furthermore, two groups of guide and constraint components are symmetrically arranged between the two outer plates 65, and each group of guide and constraint components includes two fixed shafts 66 fixed to the outer wall of the outer plate 65. Two displacement components 68 are symmetrically arranged between the two groups of guide and constraint components, and an extrusion component 67 is arranged on one side of each displacement component 68.

[0024] The displacement assembly 68 includes a push plate 681 that is slidably mounted on the outer wall of the fixed shaft 66. A plurality of springs 682 are connected between the push plate 681 and the outer plate 65. The springs 682 are mounted on the outer side of the fixed shaft 66. A limiting ring 683 is fixedly mounted on the outer wall of each fixed shaft 66 to limit the position of the push plate 681. The displacement assembly 68 also includes a fixed block 685 fixedly connected to the outer wall of the push plate 681. A resisting rod 684 is vertically and fixedly connected to the fixed block 685.

[0025] Among them, the extrusion assembly 67 includes a right-angle clamping plate 671, an adjusting component is arranged between the right-angle clamping plate 671 and the push plate 681, and a telescopic rod 672 is arranged between the right-angle clamping plate 671 and the push plate 681 on both sides of the adjusting component. The telescopic rod 672 includes an inner rod fixed on the outer wall of the right-angle clamping plate 671 and an outer cylinder fixed on the outer wall of the push plate 681, and the inner rod slides and extends to the inside of the outer cylinder.

[0026] Furthermore, the adjusting component includes a connecting piece 675 fixedly connected to the outer wall of the right-angle clamping plate 671 and a threaded barrel 673 rotatably connected to the outer wall of the push plate 681 . The threaded barrel 673 is internally threaded with a threaded rod 674 , and one end of the threaded rod 674 is fixedly connected to the connecting piece 675 .

[0027] In this embodiment, the power is turned on and the motor 8 is started. The motor 8 drives the cross brace 2 and the rotating outer cover 1 to rotate through its output shaft. The rotating outer cover 1 also drives the two clamping and flipping mechanisms 6 to revolve. In actual circuit board processing, the structure of the extrusion assembly 67 can be adjusted in advance for circuit boards of different sizes. By turning the threaded barrel 673, the threaded rod 674 can move inside the threaded barrel 673 under the limit of the telescopic rod 672, thereby adjusting the relative position of the two right-angle clamping plates 671 so that they can clamp circuit boards of different sizes. After the adjustment is completed, it is ensured that the push plate 681 is always pressed and fitted with the limit ring 683 under the push of the spring 682. Example

[0028] See also Figure 1 、 Figure 4 、 Figure 5 as well as Figure 6 A turning device for circuit board production includes all the contents of Example 1. In addition, a guide mechanism 7 is provided on the outside of the rotating outer cover 1. When the rotating outer cover 1 drives the clamping and turning mechanism 6 to revolve, the circuit board in the clamping and turning mechanism 6 can be clamped or released under the transmission cooperation with the guide mechanism 7.

[0029] Specifically, the guide mechanism 7 includes two inner guide rails 71 and two outer guide rails 72 that are symmetrically arranged in the upper and lower directions. The inner guide rail 71 is located on the inner side of the outer guide rail 72. The inner guide rail 71 and the outer guide rail 72 are fixedly connected by a connecting frame 73. The outer walls on the opposite sides of the two inner guide rails 71 are each provided with an inner guide groove 711, and the outer walls on the opposite sides of the two outer guide rails 72 are each provided with an outer guide groove 721. The inner guide groove 711 and the outer guide groove 721 are matched with the interference rod 684.

[0030] Furthermore, a large convex bend 722 and a small convex bend 723 are provided on the outer guide groove 721 to protrude outward, and a large concave bend 712 and a small concave bend 713 are provided on the inner guide groove 711 to concave inward.

[0031] In this embodiment, when the rotating outer cover 1 drives the clamping and flipping mechanism 6 to revolve clockwise, the two interference rods 684 on each clamping and flipping mechanism 6 can slide along the outer guide groove 721 and the inner guide groove 711 respectively. At this time, the interference rods 684 are constrained by the outer guide groove 721 or the inner guide groove 711, so that the relative position between the two push plates 681 remains fixed, so that the two right-angle clamping plates 671 can stably clamp the circuit board, ensuring that the circuit boards in the two clamping and flipping mechanisms 6 have good stability during processing.

[0032] In this embodiment, when the two interference rods 684 move to the large convex bend 722 and the large concave bend 712 respectively, the two interference rods 684 move away from each other and then towards each other. When the two interference rods 684 move away from each other, the two right-angle clamping plates 671 are moved away from each other through the fixed block 685, the push plate 681, the threaded cylinder 673 and other components, so that the spring 682 is further compressed. This allows the circuit board that was originally stably clamped between the two right-angle clamping plates 671 and has been processed on both sides to automatically fall off and be unloaded. In actual work, an external tray can be provided to receive the falling circuit board. Example

[0033] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 as well as Figure 7 A flipping device for circuit board production includes all the contents of Example 2. In addition, a positioning block 31 is provided on one side of the fixed inner cover 3. The positioning block 31 is fixedly connected to the support leg 4. A flipping track 32 is formed between the positioning block 31 and the fixed inner cover 3. When the clamping and flipping mechanism 6 revolves with the rotating outer cover 1, the clamping and flipping mechanism 6 can be flipped in cooperation with the positioning block 31 and the flipping track 32.

[0034] Specifically, when the clamping and flipping mechanism 6 is about to rotate to the front of the rotating outer cover 1, the resistance rod 684 disengages from the inner guide groove 711 or the outer guide groove 721, and one of the rollers 62 begins to slide along the inner side of the flip track 32. As the rotating outer cover 1 drives the clamping and flipping mechanism 6 to continue to revolve, the arc-shaped flipping block 61 begins to flip. When one of the rollers 62 slides to the top of the flip track 32, as the clamping and flipping mechanism 6 continues to revolve, the arc-shaped flipping block 61 flips 180 degrees and causes the two rollers 62 to swap positions and continue to roll along the bottom end of the fixed inner cover 3. After the clamping and flipping mechanism 6 flips 180 degrees, the circuit board is flipped over, and the resistance rod 684 again slides and limits itself on the inner side of the outer guide groove 721 or the inner guide groove 711.

[0035] Working principle and usage process: Turn on the power and start the motor 8. The motor 8 drives the cross support 2 and the rotary cover 1 to rotate through its output shaft. The rotary cover 1 drives the two clamping and flipping mechanisms 6 to revolve at the same time. Figure 1Taking the position shown as an example, when the rotating outer cover 1 drives the clamping and flipping mechanism 6 to revolve clockwise, the two interference rods 684 on each clamping and flipping mechanism 6 can slide along the outer guide groove 721 and the inner guide groove 711 respectively. At this time, the interference rods 684 are constrained by the outer guide groove 721 or the inner guide groove 711, so that the relative position between the two push plates 681 remains fixed, so that the two right-angle clamping plates 671 can stably clamp the circuit board, ensuring that the circuit boards in the two clamping and flipping mechanisms 6 have good stability during processing.

[0036] When the circuit board is processed, the clamping and turning mechanism 6 continues to rotate, and the two rollers 62 roll along the bottom end of the fixed inner cover 3. When the clamping and turning mechanism 6 is about to rotate to the front of the rotating outer cover 1, the abutting rod 684 disengages from the inner guide groove 711 or the outer guide groove 721, and one of the rollers 62 begins to slide along the inner side of the turning track 32. As the rotating outer cover 1 drives the clamping and turning mechanism 6 to continue to rotate, the arc-shaped turning block 61 begins to turn over. When one of the rollers 62 slides to the top of the turning track 32, as the clamping and turning mechanism 6 continues to rotate, the arc-shaped turning block 61 turns 180 degrees and causes the two rollers 62 to switch positions and continue to roll along the bottom end of the fixed inner cover 3. After the clamping and turning mechanism 6 turns 180 degrees, the circuit board is turned over, and the abutting rod 684 again slides in the outer guide groove 721 or the inner guide groove 711 to limit.

[0037] It should be noted that during the 180-degree flipping of the clamping flipping mechanism 6, the push plate 681 is pushed under the action of the spring 682, so that the two push plates 681 can be tightly attached to the limiting ring 683. This means that even when the limit of the resistance rod 684 is removed, the two extrusion assemblies 67 can still maintain a relatively stable state, and will not cause the circuit board to fall off and become loose.

[0038] When the two interference rods 684 move to the large convex bend 722 and the large concave bend 712 respectively, the two interference rods 684 move away from each other and then towards each other. When the two interference rods 684 move away from each other, the two right-angle clamping plates 671 are moved away from each other through the fixing block 685, the push plate 681, the threaded cylinder 673 and other components, so that the spring 682 is further compressed. This allows the circuit board that was originally stably clamped between the two right-angle clamping plates 671 and has been processed on both sides to automatically fall off and be unloaded. In actual work, an external tray can be provided to receive the falling circuit board.

[0039] After the circuit board is unloaded, when the two resistance rods 684 move to the small convex bend 723 and the small concave bend 713 respectively, the two resistance rods 684 will also move away from each other and then towards each other. The difference is that the two resistance rods 684 are less away from each other, ensuring that the circuit board can be placed while not stably clamping the circuit board. In this case, it is convenient for the staff to place the circuit board to be processed between the two right-angle clamping plates 671. Afterwards, the two resistance rods 684 approach each other and automatically clamp the circuit board, thereby continuing the processing of the circuit board.

[0040] In actual circuit board processing, the structure of extrusion assembly 67 can be pre-adjusted for circuit boards of different sizes. By rotating threaded barrel 673, threaded rod 674 can be moved within barrel 673 under the limit of telescopic rod 672, thereby adjusting the relative position of the two right-angle clamping plates 671 to enable clamping of circuit boards of different sizes. After adjustment, the push plate 681 is ensured to always be pressed and fit against the limit ring 683 under the push of spring 682.

[0041] It is worth noting that the circuits, electronic components and modules involved in the present invention are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A turning device for circuit board production, characterized in that: include: A fixed inner cover (3) and a rotary outer cover (1) rotatably sleeved on the outer side of the fixed inner cover (3); a cross brace (2) is fixedly connected to the interior of the upper port of the rotary outer cover (1); a plurality of support legs (4) for supporting the fixed inner cover (3) are fixedly connected to the inner wall of the top of the fixed inner cover (3); a frame (5) is fixedly connected between the plurality of support legs (4); a motor (8) is fixedly installed on the top of the frame (5); the top end of the output shaft of the motor (8) is fixedly connected to the cross brace (2); and the rotary outer cover (1) is driven by the motor (8) to rotate on the outer side of the fixed inner cover (3); Two clamping and flipping mechanisms (6) are symmetrically arranged on the outside of the rotating outer cover (1) for installing the circuit board to be processed. During the rotation of the rotating outer cover (1), the clamping and flipping mechanisms (6) can be driven to perform revolution. A guide mechanism (7) is arranged on the outside of the rotating outer cover (1). During the rotation of the rotating outer cover (1), the clamping and flipping mechanisms (6) can be driven to perform revolution. The guide mechanism (7) can clamp or release the circuit board in the clamping and flipping mechanisms (6) in cooperation with the transmission of the guide mechanism (7). A positioning block (31) is provided on one side of the fixed inner cover (3), the positioning block (31) and the supporting leg (4) are fixedly connected, and a flip track (32) is formed between the positioning block (31) and the fixed inner cover (3). When the clamping and flipping mechanism (6) revolves along with the rotating outer cover (1), the clamping and flipping mechanism (6) can be flipped in cooperation with the positioning block (31) and the flip track (32).

2. A turning device for circuit board production according to claim 1, characterized in that: The clamping and flipping mechanism (6) comprises an arc-shaped flipping block (61) arranged between the rotating outer cover (1) and the fixed inner cover (3); an outer wall of one side of the arc-shaped flipping block (61) is rotatably connected to two rollers (62); the outer walls of the two rollers (62) on the arc-shaped flipping block (61) in a horizontal state are in contact with the bottom of the fixed inner cover (3); a fixed sleeve (63) is provided on one side of the arc-shaped flipping block (61); the fixed sleeve (63) is rotatably passed through the outer wall of the rotating outer cover (1).

3. A turning device for circuit board production according to claim 2, characterized in that: The clamping and flipping mechanism (6) further comprises two outer plates (65) arranged in parallel and a rotating rod (64) rotatably sleeved inside the fixed sleeve (63), one end of the rotating rod (64) being fixedly connected to one of the outer plates (65), and the other end of the rotating rod (64) being fixedly connected to the outer wall of the arc-shaped flipping block (61).

4. A turning device for circuit board production according to claim 3, characterized in that: Two groups of guide and constraint components are symmetrically arranged between the two outer plates (65), each group of guide and constraint components includes two fixed shafts (66) fixed to the outer wall of the outer plate (65), and two displacement components (68) are symmetrically arranged between the two groups of guide and constraint components, and an extrusion component (67) is arranged on one side of each displacement component (68).

5. A turning device for circuit board production according to claim 4, characterized in that: The displacement assembly (68) includes a push plate (681) slidably mounted on the outer wall of the fixed shaft (66), a plurality of springs (682) are connected between the push plate (681) and the outer plate (65), and the springs (682) are mounted on the outer side of the fixed shaft (66). A limiting ring (683) is fixedly mounted on the outer wall of each fixed shaft (66) for limiting the position of the push plate (681).

6. A turning device for circuit board production according to claim 5, characterized in that: The displacement assembly (68) further includes a fixed block (685) fixedly connected to the outer wall of the push plate (681), and a resisting rod (684) is vertically penetrated and fixedly connected inside the fixed block (685).

7. A turning device for circuit board production according to claim 6, characterized in that: The extrusion assembly (67) includes a right-angle clamping plate (671), an adjustment component is provided between the right-angle clamping plate (671) and the push plate (681), and a telescopic rod (672) is provided between the right-angle clamping plate (671) and the push plate (681) on both sides of the adjustment component. The telescopic rod (672) includes an inner rod fixed to the outer wall of the right-angle clamping plate (671) and an outer cylinder fixed to the outer wall of the push plate (681), and the inner rod slides and extends into the interior of the outer cylinder.

8. A turning device for circuit board production according to claim 7, characterized in that: The adjusting component comprises a connecting piece (675) fixedly connected to the outer wall of the right-angle clamping plate (671) and a threaded barrel (673) rotatably connected to the outer wall of the push plate (681), wherein the threaded barrel (673) is internally threadedly connected to a threaded rod (674), and one end of the threaded rod (674) is fixedly connected to the connecting piece (675).

9. A turning device for circuit board production according to claim 8, characterized in that: The guide mechanism (7) includes two inner guide rails (71) and two outer guide rails (72) that are symmetrically arranged in an upper and lower direction. The inner guide rail (71) is located inside the outer guide rail (72). The inner guide rail (71) and the outer guide rail (72) are fixedly connected via a connecting frame (73). The outer walls of the two inner guide rails (71) on opposite sides are each provided with an inner guide groove (711). The outer walls of the two outer guide rails (72) on opposite sides are each provided with an outer guide groove (721). The inner guide groove (711) and the outer guide groove (721) are matched with the abutment rod (684).

10. A turning device for circuit board production according to claim 9, characterized in that: The outer guide groove (721) is provided with a large convex bend (722) and a small convex bend (723) protruding outward, and the inner guide groove (711) is provided with a large concave bend (712) and a small concave bend (713) concave inward.

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