Turnover PCBA circuit board fixing device

Abstract

The invention discloses a turnover PCBA circuit board fixing device, and particularly relates to the technical field of PCBA circuit board processing and manufacturing, the turnover PCBA circuit board fixing device comprises a fixing box, a first through groove is formed in the upper end of the fixing box, an electric cylinder is fixedly connected to the middle of the lower side of the inner surface of the fixing box, and a connecting plate is fixedly connected to the upper end of a piston rod at the output end of the electric cylinder; a bearing block is fixedly connected to the middle of the upper end of the connecting plate, bearing assemblies are symmetrically arranged on the left and right portions of the upper end of the connecting plate, clamping and overturning assemblies are symmetrically arranged on the left and right portions of the bearing block, rectangular boxes are symmetrically and fixedly connected to the left and right portions of the upper end of the fixing box, and second through grooves are formed in the middles of the opposite ends of the two rectangular boxes. According to the turnover PCBA circuit board fixing device, the two clamping and turnover assemblies are arranged, and after parts are assembled on the front face of the PCBA circuit board, the PCBA circuit board can be clamped, fixed and turned over to the back face of the PCBA circuit board, and follow-up part assembling work on the back face of the PCBA circuit board is continued.

Description

Technical Field

[0001] The invention relates to the technical field of PCBA circuit board processing and manufacturing, and in particular to a flippable PCBA circuit board fixing device. Background Art

[0002] PCBA, or printed circuit board assembly, refers to assembling electronic components, connectors, plug-ins, digital logic gates, microcontroller units, etc. onto a printed circuit board (PCB) according to a predetermined circuit diagram, and correctly connecting these components to the circuit diagram on the PCB through welding, plug-in and other processes to form a complete circuit system with specific functions; this process includes not only the physical installation of components, but also subsequent testing, debugging and other links to ensure the performance and reliability of the entire circuit system.

[0003] Clamping and fixing can ensure that the PCBA circuit board maintains a precise position and angle during installation or testing, avoiding poor connection or performance problems caused by position offset. During automated production or testing, the circuit board may be affected by various external forces. Clamping and fixing can prevent unnecessary movement of the circuit board and ensure smooth production or testing.

[0004] Some PCBA circuit boards require double-sided processing, such as double-sided SMT, welding, etc.; flipping the circuit board can easily achieve double-sided processing without taking the circuit board out of the processing equipment and repositioning it, thus saving time and improving production efficiency.

[0005] Chinese patent announcement number CN117794085A relates to the technical field of circuit board fixing, and specifically proposes a flippable PCBA circuit board fixing device, including: a fixed base, an anti-bias limit mechanism and a flip drive mechanism. The present invention fixes the PCBA circuit board in multiple directions through the anti-bias limit mechanism, effectively preventing the PCBA circuit board from moving during the flipping process, affecting the detection of the PCBA circuit board and the neatness of the subsequent stacking and placement, and the receiving plate receiving the PCBA circuit board is arranged obliquely below the connecting hole, thereby reducing the shielding of the PCBA circuit board by the receiving plate, avoiding the receiving plate from affecting the later detection of the PCBA circuit board, and at the same time, through the cooperation of the flip drive mechanism and the anti-bias limit mechanism, multiple PCBA circuit boards can be fixed at the same time, and multiple PCBA circuit boards can be driven to flip at the same time, effectively improving the practicality of the fixing device and the convenience of use and operating efficiency.

[0006] Although the above device can clamp and fix the PCBA circuit board during the production process of the PCBA circuit board, the side abutment plate can only clamp the PCBA circuit board with chamfered corners. However, the four corners of the PCBA circuit board are of several types, such as rounded corners, chamfered corners and right angles. The above device cannot clamp and fix the PCBA circuit board with right angles, which makes the above device limited in the specific production process of the PCBA circuit board. Summary of the invention

[0007] The main purpose of the present invention is to provide a flippable PCBA circuit board fixing device, which can effectively solve the problem of fixing and flipping the PCBA circuit board during the production of the PCBA circuit board.

[0008] To achieve the above object, the technical solution adopted by the present invention is:

[0009] A flippable PCBA circuit board fixing device comprises a fixing box, the upper end of which is provided with a through groove one, an electric cylinder is fixedly connected to the middle part of the lower side of the inner surface of the fixing box, the upper end of the piston rod of the electric cylinder output end is fixedly connected to a connecting plate, a supporting block is fixedly connected to the middle part of the upper end of the connecting plate, supporting components are symmetrically arranged on the left and right parts of the upper end of the connecting plate, a clamping and flipping component is symmetrically arranged on the left and right parts of the supporting block, a rectangular box is symmetrically fixedly connected to the left and right parts of the upper end of the fixing box, and two through grooves are opened in the middle parts of opposite ends of the two rectangular boxes.

[0010] Preferably, the supporting assembly includes a fixing plate 1, which is fixedly connected to the left upper end of the connecting plate, and a spring 1 is fixedly connected to the front and rear parts of the upper right side of the fixing plate 1, and a fixing plate 2 is commonly fixedly connected to the upper sides of the two springs 1, and a limiting assembly is provided in the middle part of the left lower end of the fixing plate 2.

[0011] Preferably, the limiting assembly includes a round rod 1, which is fixedly connected to the middle left portion of the lower end of the fixing plate 2, and a through round hole is opened in the middle left portion of the upper end of the fixing plate 1, and the round rod 1 is slidably connected to the inner surface of the round hole.

[0012] Preferably, the clamping and flipping assembly includes a rectangular plate 2, which is fixedly connected to the right upper end of the fixed plate 2, a sliding assembly is provided at the lower left portion of the rectangular plate 2, a positioning assembly is provided at the middle left portion of the rectangular plate 2, a flipping assembly is provided at the upper left portion of the rectangular plate 2, and a blocking plate is fixedly connected to the middle upper left end of the rectangular plate 2.

[0013] Preferably, the sliding assembly includes a telescopic rod, the second rectangular plate passes through the lower part of the right end and extends to the left side of the second rectangular plate and is slidably connected to the second round rod, the right end of the second round rod is fixedly connected to the first rectangular plate, the telescopic rod is fixedly connected to the left end of the second round rod, the left end of the telescopic rod is fixedly connected to a spherical block, the outer surface of the telescopic rod is sleeved with a second spring, the left and right sides of the second spring are respectively fixedly connected to the outer surface of the spherical block and the left end of the second round rod, and a slide groove assembly is provided on the left side of the spherical block.

[0014] Preferably, the slide groove assembly includes a slide groove 1, which is opened at the upper left part of the inner surface of the rectangular box, and a slide groove 2 which is connected with the slide groove 1 is opened at the lower left part of the inner surface of the rectangular box, and the spherical block is slidably connected to the inner surfaces of the slide groove 1 and the slide groove 2.

[0015] Preferably, the flip assembly includes a gear, the rectangular plate one and the rectangular plate two both penetrate the upper right end and extend to the left side of the rectangular plate two and are movably connected with a round rod three, the gear is fixedly connected to the left side of the outer surface of the round rod three, the front upper part of the inner surface of the rectangular box is fixedly connected with a rack, the right end of the round rod three is fixedly connected with a clamping plate, the front and rear parts of the upper end of the clamping plate are fixedly connected with an L-shaped plate, and the right end of the clamping plate is fixedly connected with a plurality of silicone bumps.

[0016] Preferably, the positioning assembly includes a fixed block 2 and a rubber arc block, the fixed block 2 is fixedly connected to the middle part of the left end of the rectangular plate 2, the upper end of the fixed block 2 is fixedly connected to a spring 3, the upper side of the spring 3 is fixedly connected to a fixed block 1, the fixed block 1 is slidably connected to the middle part of the left end of the rectangular plate 2, the middle part of the upper end of the fixed block 1 is fixedly connected to a slide rail, and the rubber arc block is slidably connected to the slide rail.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention provides two clamping and flipping components, which can clamp and fix the PCBA circuit board and flip it to the back side to continue the subsequent back side parts assembly work after the PCBA circuit board is assembled with parts on the front side, without the need to manually remove the PCBA circuit board and flip it to the back side for repositioning, thereby saving time and improving work efficiency; the two supporting components can enable the supporting block to continue to rise under the action of the electric cylinder after the PCBA circuit board is flipped from the front side to the back side, so as to provide the PCBA circuit board with a support in the subsequent back side parts assembly work of the PCBA circuit board, thereby preventing the PCBA circuit board from being damaged due to the lack of support on the lower side when the back side parts of the PCBA circuit board are assembled.

[0019] 2. The present invention provides two limit assemblies, so that when the electric cylinder drives the supporting block to continue to rise, the springs on the left and right sides are both compressed, so that the rising process is horizontal, and the springs will not shake around due to compression, thereby affecting the state of the PCBA circuit board after it is flipped from the front to the back; the sliding assembly and the flip assembly can realize the fixing and flipping operations of the PCBA circuit board while using one power source of the electric cylinder, thereby saving energy and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0022] Figure 3 It is a dynamic schematic diagram of the local structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the clamping and flipping assembly of the present invention;

[0024] Figure 5 It is a schematic diagram of the local structure of the present invention;

[0025] Figure 6 For the present invention Figure 4 Schematic diagram of the structure at A in the middle;

[0026] Figure 7 For the present invention Figure 5 Schematic diagram of the structure at point B in the middle.

[0027] In the figure: 1, fixed box; 2, through slot 1; 3, electric cylinder; 4, connecting plate; 5, supporting assembly; 51, spring 1; 52, fixed plate 1; 53, fixed plate 2; 54, limit assembly; 541, round hole; 542, round rod 1; 6, clamping and flipping assembly; 61, sliding assembly; 611, spherical block; 612, telescopic rod; 613, spring 2; 614, round rod 2; 615, rectangular plate 1; 616, slide assembly; 6161, Slideway one; 6162, slideway two; 62, flip assembly; 621, gear; 622, round rod three; 623, rack; 624, clamping plate; 625, L-shaped plate; 626, silicone protrusion; 63, positioning assembly; 631, rubber arc block; 632, slide rail; 633, fixed block one; 634, spring three; 635, fixed block two; 64, rectangular plate two; 65, blocking plate; 7, rectangular box; 8, through slot two; 9, supporting block. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] like Figure 1 As shown, a flippable PCBA circuit board fixing device comprises a fixing box 1, a through groove 2 is provided at the upper end of the fixing box 1, an electric cylinder 3 is fixedly connected to the middle part of the lower side of the inner surface of the fixing box 1, a connecting plate 4 is fixedly connected to the upper end of the piston rod at the output end of the electric cylinder 3, a supporting block 9 is fixedly connected to the middle part of the upper end of the connecting plate 4, supporting assemblies 5 are symmetrically arranged on the left and right parts of the upper end of the connecting plate 4, a clamping and flipping assembly 6 is symmetrically arranged on the left and right parts of the supporting block 9, a rectangular box 7 is symmetrically fixedly connected to the left and right parts of the upper end of the fixing box 1, and a through groove 8 is provided in the middle part of the opposite ends of the two rectangular boxes 7.

[0030] In the specific implementation, the PCBA circuit board after the front parts are assembled is placed in the two clamping and flipping assemblies 6, and the electric cylinder 3 is turned on to extend the piston rod, thereby driving the two clamping and flipping assemblies 6 and the PCBA circuit board to rise. During the rising process, the two clamping and flipping assemblies 6 fix the PCBA circuit board;

[0031] After the PCBA circuit board is fixed, the electric cylinder 3 continues to extend the piston rod, so that the two clamping and flipping components 6 and the PCBA circuit board continue to rise. In the subsequent rise, the two clamping and flipping components 6 flip the PCBA circuit board from the front side to the back side;

[0032] After the PCBA circuit board is flipped to the back side, the electric cylinder 3 continues to extend the piston rod. At this time, the two clamping and flipping components 6 and the PCBA circuit board do not rise. Under the action of the two supporting components 5, the supporting block 9 rises, providing support for the PCBA circuit board in the subsequent parts assembly work on the back side of the PCBA circuit board.

[0033] Specifically, in order to turn the PCBA circuit board over to the back side after completing the assembly of the parts on the front side of the PCBA circuit board, and continue the assembly of the parts on the back side, thereby improving the production efficiency of the PCBA circuit board, refer to Figure 2 The clamping and flipping assembly 6 includes a rectangular plate 64, which is fixedly connected to the right upper end of the fixed plate 53, a sliding assembly 61 is provided at the lower left side of the rectangular plate 64, a positioning assembly 63 is provided at the middle left side of the rectangular plate 64, a flipping assembly 62 is provided at the upper left side of the rectangular plate 64, and a blocking plate 65 is fixedly connected to the middle upper left end of the rectangular plate 64;

[0034] Further reading Figure 4The sliding assembly 61 includes a telescopic rod 612, the rectangular plate 64 passes through the lower part of the right end and extends to the left side of the rectangular plate 64 to be slidably connected to the round rod 614, the right end of the round rod 614 is fixedly connected to the rectangular plate 1 615, the telescopic rod 612 is fixedly connected to the left end of the round rod 614, the left end of the telescopic rod 612 is fixedly connected to the spherical block 611, the outer surface of the telescopic rod 612 is sleeved with a spring 613, the left and right sides of the spring 613 are respectively connected to the spherical block 611. The outer surface of the spherical block 611 is fixedly connected to the left end of the second round rod 614, and a slide groove assembly 616 is arranged on the left side of the spherical block 611; the slide groove assembly 616 includes a slide groove 1 6161, and the slide groove 1 6161 is opened at the upper left part of the inner surface of the rectangular box 7, and a slide groove 2 6162 which is connected with the slide groove 1 6161 is opened at the lower left part of the inner surface of the rectangular box 7, and the spherical block 611 is slidably connected with the inner surfaces of the slide groove 1 6161 and the slide groove 2 6162;

[0035] Further reading Figure 5 and Figure 7 The flip assembly 62 includes a gear 621. The rectangular plate 1 615 and the rectangular plate 2 64 both penetrate the upper right end and extend to the left side of the rectangular plate 2 64 and are movably connected to a round rod 3 622. The gear 621 is fixedly connected to the left side of the outer surface of the round rod 3 622. A rack 623 is fixedly connected to the upper front side of the inner surface of the rectangular box 7. The right end of the round rod 3 622 is fixedly connected to a clamping plate 624. The front and rear parts of the upper end of the clamping plate 624 are fixedly connected to an L-shaped plate 625. The right end of the clamping plate 624 is fixedly connected to a plurality of silicone bumps 626.

[0036] Further reading Figure 6 The positioning assembly 63 includes a second fixing block 635 and a rubber arc block 631. The second fixing block 635 is fixedly connected to the middle of the left end of the second rectangular plate 64. The upper end of the second fixing block 635 is fixedly connected to a spring 3 634. The upper side of the spring 3 634 is fixedly connected to a first fixing block 633. The first fixing block 633 is slidably connected to the middle of the left end of the second rectangular plate 64. The middle of the upper end of the first fixing block 633 is fixedly connected to a slide rail 632. The rubber arc block 631 is slidably connected to the slide rail 632.

[0037] The movable connection between the round rod 3 622 and the rectangular plate 1 615 and the rectangular plate 2 64 is a connection relationship that can slide and rotate. This connection relationship is a mature technical means in the prior art, and the present solution will not further elaborate on its structure and working principle;

[0038] The depths of the two second chutes 6162 are greater than the depths of the two first chutes 6161.

[0039] In a specific implementation, in the initial state, the two spherical blocks 611 are both located in the two second slide grooves 6162, and at this time, the two clamping plates 624 cannot clamp and fix the PCBA circuit board tightly. The PCBA circuit board after the front parts are assembled is placed on the two clamping plates 624, and at this time, the front of the PCBA circuit board faces upward, and the four L-shaped plates 625 cover the four corners of the PCBA circuit board respectively;

[0040] The electric cylinder 3 is turned on to extend the piston rod, driving the two clamping and flipping components 6 and the PCBA circuit board to rise. During this process, the two spherical blocks 611 are respectively in a sliding state in the second slide groove 6162 on the same side. After the electric cylinder 3 drives the two clamping and flipping components 6 and the PCBA circuit board to continue to rise, so that the two spherical blocks 611 completely slide from the second slide groove 6162 to the first slide groove 6161, the depth changes from deep to shallow, so that the two round rods 614 slide towards the supporting block 9 at the same time, thereby driving the two rectangular plates 615 to move towards the supporting block 9 at the same time. The supporting block 9 moves in the direction of the two round rods 622 and the two rubber arc blocks 631, thereby driving the two clamping plates 624 to move in the direction close to the supporting block 9, so that the two clamping plates 624 that were originally unable to fix the PCBA circuit board can clamp and fix the PCBA circuit board tightly, and the plurality of silicone protrusions 626 can play a role of buffering and shock absorption, so that the two clamping plates 624 will not cause damage to the PCBA circuit board itself during the process of clamping and fixing the PCBA circuit board;

[0041] After the PCBA circuit board is fixed, the electric cylinder 3 continues to extend the piston rod, driving the two clamping and flipping components 6 and the PCBA circuit board to continue to rise, until the two gears 621 are in contact and mesh with the racks 623 on the same side, and the electric cylinder 3 continues to drive the two clamping and flipping components 6 to continue to rise. After the two gears 621 are meshed with the two racks 623, the two gears 621 rotate, thereby causing the two round rods 622 to rotate, thereby driving the two clamping plates 624 and the PCBA circuit board to rotate, until the PCBA circuit board is flipped from the front to the back;

[0042] In this way, the piston rod is continuously extended by the electric cylinder 3, so that the two clamping and flipping components 6 first complete the clamping and fixing of the PCBA circuit board, and then complete the flipping of the PCBA circuit board. In this way, the staff does not need to flip the PCBA circuit board to the reverse side and re-fix it, thereby saving working time and improving working efficiency;

[0043] The two rubber arc blocks 631 always hold the outer surfaces of the two round rods 622, so that the rubber arc blocks 631 give the round rods 622 a friction force, so that when the electric cylinder 3 contracts the piston rod and the gear 621 is disengaged from the meshing state with the rack 623, the gear 621 immediately changes from the rotating state to the static state, so that the gear 621 and the rack 623 can also mesh next time, thereby completing the rotation;

[0044] Because the rotation of the round rod three 622 will cause friction with the rubber arc block 631, the rubber arc block 631 is a wearing part. By utilizing the reaction force of the spring three 634, the rubber arc block 631 can always be in close contact with the outer surface of the round rod three 622, thereby applying a friction force to the round rod three 622. The slide rail 632 makes the rubber arc block 631 replaceable.

[0045] Specifically, in order to ensure that the support block 9 does not hinder the process of flipping the PCBA circuit board from the front to the back, and at the same time supports the PCBA circuit board when the parts on the back of the PCBA circuit board are assembled, thereby preventing the PCBA circuit board from being damaged during the assembly of parts, refer to Figure 3 The supporting assembly 5 includes a fixing plate 52, which is fixedly connected to the left upper end of the connecting plate 4, and the front and rear parts of the upper right side of the fixing plate 52 are fixedly connected with springs 51, and the upper sides of the two springs 51 are commonly fixedly connected with a fixing plate 2 53, and a limiting assembly 54 is provided in the middle of the left lower end of the fixing plate 2 53; the limiting assembly 54 includes a round rod 542, which is fixedly connected to the middle of the left lower end of the fixing plate 2 53, and a through round hole 541 is provided in the middle of the left upper end of the fixing plate 52, and the round rod 542 is slidably connected to the inner surface of the round hole 541.

[0046] In a specific implementation, after the two clamping and flipping components 6 continue to rise under the action of the electric cylinder 3 to flip the PCBA circuit board to the reverse side, the upper ends of the two blocking plates 65 both contact the upper side of the inner surface of the through groove 2 8 on the same side. At this time, if the electric cylinder 3 continues to extend the piston rod, the two clamping and flipping components 6 and the PCBA circuit board will not continue to rise, and the PCBA circuit board will always remain in the state of being flipped to the reverse side;

[0047] Since there is a certain distance between the upper end of the supporting block 9 and the lower end of the PCBA circuit board clamped by the two clamping plates 624, the supporting block 9 will not hinder the turning process of the PCBA circuit board;

[0048] The electric cylinder 3 continues to extend the piston rod. At this time, under the action of the two blocking plates 65, the electric cylinder 3 exerts a force on the connecting plate 4 so that the springs 51 on the left and right sides are in a compressed state, thereby driving the supporting block 9 to rise to a position to support the lower end of the PCBA circuit board, so that the supporting block 9 can provide support for the PCBA circuit board during the subsequent assembly of parts on the back of the PCBA circuit board, thereby preventing the lower side of the PCBA circuit board from being suspended in the air, causing damage to the PCBA circuit board during the assembly of parts;

[0049] When the springs 51 on the left and right sides are both in a compressed state, the two round rods 542 are in a sliding state in the two round holes 541, which can play a guiding role to prevent the springs 51 from shaking around due to compression, thereby affecting the state of the PCBA circuit board;

[0050] At the same time, the reaction force of spring 1 51 can be used to restore the supporting block 9 to its initial position.

[0051] It should be noted that the specific installation method of the electric cylinder 3, the circuit connection method and the control method used in the present invention are all conventional designs and will not be elaborated in detail in the present invention.

[0052] The working principle of the present invention is:

[0053] Place the PCBA circuit board after the front parts are assembled on the two clamping plates 624, turn on the electric cylinder 3 to extend the piston rod, and drive the two clamping flip components 6 and the PCBA circuit board to rise. At this time, the two spherical blocks 611 slide in the two second slide grooves 6162. After the two spherical blocks 611 slide into the two first slide grooves 6161, the two clamping plates 624 clamp and fix the PCBA circuit board;

[0054] The electric cylinder 3 continues to drive the two clamping and flipping assemblies 6 and the PCBA circuit board to rise until the two gears 621 and the two racks 623 are meshed, so that the two gears 621 rotate, thereby causing the PCBA circuit board to rotate and flip to the reverse side. At this time, the upper ends of the two blocking plates 65 are in a state of abutting against the upper sides of the inner surfaces of the two through grooves 8.

[0055] The electric cylinder 3 continues to extend the piston rod, driving the support block 9 to rise until the upper end of the support block 9 contacts the lower end of the PCBA circuit board.

[0056] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A reversible PCBA circuit board fixing device, comprising a fixing box (1), characterized in that: The upper end of the fixed box (1) is provided with a through groove one (2); the middle part of the lower side of the inner surface of the fixed box (1) is fixedly connected to an electric cylinder (3); the upper end of the piston rod of the output end of the electric cylinder (3) is fixedly connected to a connecting plate (4); the middle part of the upper end of the connecting plate (4) is fixedly connected to a supporting block (9); the upper left and right parts of the connecting plate (4) are symmetrically provided with supporting components (5); the left and right parts of the supporting block (9) are symmetrically provided with a clamping and flipping component (6); the upper left and right parts of the fixed box (1) are symmetrically fixedly connected to rectangular boxes (7); and the middle parts of the opposite ends of the two rectangular boxes (7) are both provided with through grooves two (8).

2. The reversible PCBA circuit board fixing device according to claim 1, characterized in that: The supporting assembly (5) comprises a fixing plate 1 (52), wherein the fixing plate 1 (52) is fixedly connected to the left portion of the upper end of the connecting plate (4), the front and rear portions of the upper right side of the fixing plate 1 (52) are fixedly connected to springs 1 (51), the upper sides of the two springs 1 (51) are commonly fixedly connected to a fixing plate 2 (53), and a limiting assembly (54) is provided at the middle portion of the left side of the lower end of the fixing plate 2 (53).

3. The reversible PCBA circuit board fixing device according to claim 2, characterized in that: The limiting assembly (54) comprises a round rod (542) which is fixedly connected to the middle left portion of the lower end of the second fixing plate (53); a through round hole (541) is provided in the middle left portion of the upper end of the first fixing plate (52); and the round rod (542) is slidably connected to the inner surface of the round hole (541).

4. The reversible PCBA circuit board fixing device according to claim 3, characterized in that: The clamping and flipping assembly (6) comprises a second rectangular plate (64), the second rectangular plate (64) being fixedly connected to the right upper end of the second fixed plate (53), a sliding assembly (61) being arranged at the lower left side of the second rectangular plate (64), a positioning assembly (63) being arranged at the middle left side of the second rectangular plate (64), a flipping assembly (62) being arranged at the upper left side of the second rectangular plate (64), and a blocking plate (65) being fixedly connected to the middle upper left end of the second rectangular plate (64).

5. The reversible PCBA circuit board fixing device according to claim 4, characterized in that: The sliding assembly (61) comprises a telescopic rod (612), the second rectangular plate (64) penetrates the lower part of the right end and extends to the left side of the second rectangular plate (64) to be slidably connected with a second round rod (614), the right end of the second round rod (614) is fixedly connected with a first rectangular plate (615), the telescopic rod (612) is fixedly connected with the left end of the second round rod (614), the left end of the telescopic rod (612) is fixedly connected with a spherical block (611), the outer surface of the telescopic rod (612) is sleeved with a second spring (613), the left and right sides of the second spring (613) are respectively fixedly connected with the outer surface of the spherical block (611) and the left end of the second round rod (614), and a slide groove assembly (616) is arranged on the left side of the spherical block (611).

6. The reversible PCBA circuit board fixing device according to claim 5, characterized in that: The slide groove assembly (616) includes a slide groove 1 (6161), wherein the slide groove 1 (6161) is opened at the upper left portion of the inner surface of the rectangular box (7), and a slide groove 2 (6162) which is connected with the slide groove 1 (6161) is opened at the lower left portion of the inner surface of the rectangular box (7), and the spherical block (611) is slidably connected to the inner surfaces of the slide groove 1 (6161) and the slide groove 2 (6162).

7. The reversible PCBA circuit board fixing device according to claim 6, characterized in that: The flip assembly (62) includes a gear (621), the rectangular plate 1 (615) and the rectangular plate 2 (64) both penetrate the upper right end and extend to the left side of the rectangular plate 2 (64) and are movably connected to a round rod 3 (622), the gear (621) is fixedly connected to the left side of the outer surface of the round rod 3 (622), the upper front side of the inner surface of the rectangular box (7) is fixedly connected to a rack (623), the right end of the round rod 3 (622) is fixedly connected to a clamping plate (624), the front and rear parts of the upper end of the clamping plate (624) are fixedly connected to an L-shaped plate (625), and the right end of the clamping plate (624) is fixedly connected to a plurality of silicone protrusions (626).

8. The reversible PCBA circuit board fixing device according to claim 7, characterized in that: The positioning assembly (63) comprises a second fixing block (635) and a rubber arc block (631); the second fixing block (635) is fixedly connected to the middle part of the left end of the second rectangular plate (64); a third spring (634) is fixedly connected to the upper end of the second fixing block (635); a first fixing block (633) is fixedly connected to the upper side of the third spring (634); the first fixing block (633) is slidably connected to the middle part of the left end of the second rectangular plate (64); a slide rail (632) is fixedly connected to the middle part of the upper end of the first fixing block (633); and the rubber arc block (631) is slidably connected to the slide rail (632).

Images