A turnover mechanism for PCB processing

Abstract

The application discloses a turnover mechanism and belongs to the field of PCB processing, which comprises a base, an inner groove is formed on one side of the surface of the base, a motor is installed in the inner groove, a first transmission wheel is key-connected to the output end of the motor, a mounting rack body is bolted to the opening of the inner groove of the base, an opening is arranged at the bottom of the mounting rack body, a rotating disc is movably installed at the surface center of the mounting rack body through a bearing, a transmission shaft is inserted into the surface center of the rotating disc, a second transmission wheel is key-connected to one end of the transmission shaft, the first transmission wheel is drivingly connected with the second transmission wheel through a transmission belt, and a limiting mechanism is installed at the other end of the transmission shaft. The clamping mechanism is optimized, so that the protection can be achieved even if the clamping process is affected by external factors, the position offset is avoided, and the machining effect is ensured.

Description

TECHNICAL FIELD

[0001] The application relates to the field of PCB processing, and particularly relates to a turnover mechanism for PCB processing. BACKGROUND

[0002] The PCB is a printed circuit board, also known as a printed wiring board, is an important electronic component, is a support body of electronic components, and is a carrier for electrical interconnection of electronic components.

[0003] Application No. CN202220143345.2 discloses a device for turning over a PCB, and relates to the field of conveying and processing of PCBs. The device for turning over a PCB comprises a lifting assembly including a turnover assembly fixing plate and a driving unit capable of driving the turnover assembly fixing plate to move up and down; the turnover assembly is fixed to the turnover assembly fixing plate, and a jaw for clamping the PCB is arranged on the turnover assembly; the jaw is fixedly connected with the rotating shaft of a stepping motor of the turnover assembly; under the driving of the stepping motor, the jaw can be turned over 360 degrees in the vertical plane while clamping the PCB. Compared with the existing PCB turning device, the device can not only realize 180-degree turning of the PCB, but also has a smaller size; the device is also provided with a jacking mechanism, and the stop block and the positioning column of the jacking mechanism can accurately position the PCB, so that the position of the jaw clamping the PCB each time remains unchanged.

[0004] However, the following problems still exist: the overall structure of the device is relatively complex, and multiple structures need to be linked during use, which is inconvenient to operate and may cause the clamping position of the PCB to deviate due to other factors, and it is inconvenient for workers to intervene at any time. SUMMARY

[0005] The application aims to provide a turnover mechanism for PCB processing, which optimizes the clamping mechanism and can provide certain protection during clamping, avoiding easy deviation of the position, and thus ensuring the processing effect.

[0006] The application provides the following technical scheme: a turnover mechanism for PCB processing, comprising a base, an inner groove is formed on one side of the surface of the base, a motor is installed in the inner groove, a first transmission wheel is connected to the output end of the motor, a mounting rack is bolted to the opening of the inner groove of the base, an opening is formed in the bottom of the mounting rack, a rotating disc is movably installed on the surface center of the mounting rack through a bearing, a transmission shaft is inserted into the surface center of the rotating disc, a second transmission wheel is connected to one end of the transmission shaft, the first transmission wheel is connected to the second transmission wheel through a transmission belt, and a limiting mechanism is installed at the other end of the transmission shaft.

[0007] Another side surface of the base is provided with a mounting groove, and a sliding groove is formed in the mounting groove, a sliding block is slidably mounted on the sliding groove, a lead screw is screwed through and mounted on the surface of the sliding block, the two ends of the lead screw are movably arranged in the mounting groove through bearing cooperation, one end of the lead screw penetrates through the mounting groove and is key-connected with a rotating wheel, an auxiliary support is mounted on the sliding block, a piston rod is mounted on the surface of the auxiliary support, and a supporting seat is arranged at one end of the piston rod; a cushion block is laid on the surface of the supporting seat, the cushion block comprises a rubber pad and an anti-static layer, the rubber pad is bonded on the surface of the supporting seat, the anti-static layer is bonded on one side of the rubber pad, a pressure-resistant layer is bonded on one side of the anti-static layer, and the surface of the pressure-resistant layer is sequentially and uniformly provided with protruding blocks.

[0008] Preferably, the limiting mechanism comprises a first supporting plate, a second supporting plate, a connecting block, a connecting piece and a hinge, the two sides of the first supporting plate and the second supporting plate are respectively provided with connecting blocks, connecting springs are mounted between the connecting blocks arranged on the first supporting plate and the second supporting plate, one side of each of the four connecting blocks is hingedly connected with a connecting piece, and the connecting pieces are movably connected through the hinge.

[0009] Preferably, one side of the first supporting plate is key-connected with the end of the transmission shaft, and two damping rods are symmetrically mounted between the surface of the first supporting plate and the rotating disc.

[0010] Preferably, two adjustable folding supports are symmetrically mounted between the supporting seat and the auxiliary support.

[0011] Preferably, the anti-static layer is made of rock wool material, the pressure-resistant layer is an integrated structure made of silica gel material, and the protruding blocks are an integrated forming structure on the surface of the pressure-resistant layer.

[0012] The technical effects and advantages of the present application are as follows:

[0013] 1. The clamping mechanism is optimized, the lead screw drives the sliding block to move the supporting seat, so as to fix the PCB board between the limiting mechanism and the supporting seat, good clamping and fixing effects are achieved, and the connecting structure of the limiting mechanism and the supporting seat has a self-adaptive buffer adjusting function, so that the position is not easily deviated, and the machining effect is ensured.

[0014] 2. The overturning driving structure is optimized, the motor cooperates with the transmission wheel and the transmission belt to provide power, has good adjustability, is easy to adjust at any time according to specific needs, and can effectively ensure the convenience of subsequent machining. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structural schematic view of the present application.

[0016] Fig. 2 The limiting mechanism structure schematic view of the present application;

[0017] Fig. 3 The cushion block part structure schematic view of the present application.

[0018] Marked for: 1, base; 2, inner groove; 3, motor; 4, mounting frame body; 5, transmission shaft; 6, rotary disc; 7, limiting mechanism; 71, first branch plate; 72, second branch plate; 73, connecting block; 74, connecting piece; 75, hinge; 76, connecting spring; 8, first transmission wheel; 9, second transmission wheel; 10, transmission belt; 11, auxiliary support; 12, piston rod; 13, support seat; 14, cushion block; 141, rubber pad; 142, anti-static layer; 143, compression-resistant layer; 144, protruding block; 15, folding support; 16, damping rod; 17, sliding block; 18, lead screw; 19, rotary wheel; 20, sliding groove. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0020] The present application provides a kind of turnover mechanism for PCB processing as shown in Figs. 1-3 The turnover mechanism for PCB processing includes base 1, the surface side of base 1 is provided with inner groove 2, motor 3 is installed in inner groove 2, the output end key of motor 3 is connected with first transmission wheel 8, mounting frame body 4 is bolted on the opening of inner groove 2 of base 1, the bottom of mounting frame body 4 is provided with opening, the surface center of mounting frame body 4 is movably installed with rotary disc 6 by bearing, the surface center of rotary disc 6 is inserted with transmission shaft 5, one end of transmission shaft 5 is keyed with second transmission wheel 9, and first transmission wheel 8 is driven in cooperation with second transmission wheel 9 by transmission belt 10.

[0021] The other side surface of the base 1 is provided with a mounting groove, and a sliding groove 20 is formed in the mounting groove. A sliding block 17 is slidably mounted on the sliding groove 20. A threaded rod 18 is screwed through the surface of the sliding block 17. The two ends of the threaded rod 18 are movably arranged in the mounting groove through bearing cooperation. One end of the threaded rod 18 penetrates through the mounting groove and is key-connected with a rotating wheel 19. An auxiliary support 11 is mounted on the sliding block 17. A piston rod 12 is mounted on the surface of the auxiliary support 11. One end of the piston rod 12 is provided with a supporting seat 13. Two adjustable folding supports 15 are symmetrically mounted between the supporting seat 13 and the auxiliary support 11. The folding supports 15 also have a certain self-adaptive adjustment effect, which can cooperate with each other to ensure the stability of the supporting seat 13, and can also move when the piston rod 12 is compressed and shrunk, having a good auxiliary supporting effect.

[0022] The surface of the supporting seat 13 is paved with a cushion block 14. The cushion block 14 includes a rubber pad 141 and an anti-static layer 142. The rubber pad 141 is bonded to the surface of the supporting seat 13. The anti-static layer 142 is bonded to one side of the rubber pad 141. An anti-pressure layer 143 is bonded to one side of the anti-static layer 142. The surface of the anti-pressure layer 143 is uniformly provided with protruding blocks 144. The cushion block 14 forms a layered protection structure. The cooperation of the multi-layer protection structure makes the overall protection effect more excellent. The anti-static layer 142 is made of rock wool material. The anti-pressure layer 143 is an integrated structure made of silica gel material. The protruding blocks 144 are an integrated forming structure on the surface of the anti-pressure layer 143.

[0023] The other end of the transmission shaft 5 is provided with a limiting mechanism 7. The limiting mechanism 7 includes first supporting plates 71, second supporting plates 72, connecting blocks 73, connecting pieces 74, and hinges 75. The two sides of the first supporting plates 71 and the second supporting plates 72 are respectively provided with the connecting blocks 73. The connecting springs 76 are mounted between the connecting blocks 73 arranged on the first supporting plates 71 and the second supporting plates 72. The four connecting blocks 73 are each hingedly provided with a connecting piece 74. The connecting pieces 74 are movably connected through the hinges 75. The limiting mechanism 7 is arranged to limit the position of the pcb board to be processed. When clamping and fixing, first, one side of the pcb board is abutted against the surface of the second supporting plate 72. The other side is manually rotated to drive the threaded rod 18. The threaded rod 18 is rotated to drive the sliding block 17 to move, so that the sliding block 17 moves together with the auxiliary support 11. The supporting seat 13 structure on the auxiliary support 11 contacts the two sides of the pcb board and cooperates with each other to produce a certain extrusion. Due to the force generated by the extrusion, the second supporting plate 72 and the supporting seat 13 are both contracted. The connecting spring 76 between the second supporting plate 72 and the first supporting plate 71 is contracted and provides a counterforce to press the pcb board. The piston rod 12 on one side of the supporting seat 13 also changes. The two cooperate and control the adjustment degree of the rotating wheel 19 to achieve the clamping and fixing effect of the pcb board, while having a good auxiliary protection effect.

[0024] The side of the first supporting plate 71 is keyed connected with the end of the transmission shaft 5, and two damping rods 16 are symmetrically installed between the first supporting plate 71 and the surface of the rotating disc 6. When being bumped by the outside, the two damping rods 16 can also play an auxiliary supporting effect, and the cushion block 14 part also has a certain compression and impact resistance effect, realizing overall protection and improving the safety effect.

[0025] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A turnover mechanism for PCB board processing, characterized in that: The utility model provides a kind of rotary table, including base (1), the surface side of the base (1) is equipped with inner groove (2), motor (3) is installed in the inner groove (2), the output end key connection of the motor (3) is equipped with first transmission wheel (8);The mounting frame body (4) is bolted with the opening of inner groove (2) in the base (1), the bottom of the mounting frame body (4) is equipped with opening, the surface center of the mounting frame body (4) is movably installed with rotary table (6) by bearing, the surface center of the rotary table (6) is inserted with transmission shaft (5), one end key connection of the transmission shaft (5) is equipped with second transmission wheel (9), and the first transmission wheel (8) is drivenly connected with second transmission wheel (9) by transmission belt (10) cooperation, the other end of the transmission shaft (5) is equipped with limiting mechanism (7);The other surface of the base (1) is equipped with mounting groove, and sliding slot (20) is equipped in the mounting groove, sliding block (17) is slidably installed on the sliding slot (20), screw joint is passed through the surface of sliding block (17) and is installed with screw rod (18), and the both ends of the screw rod (18) are movably arranged in mounting groove by bearing cooperation, one end of the screw rod (18) passes through mounting groove and is key connected with rotating wheel (19), and auxiliary support (11) is installed on the sliding block (17), and piston rod (12) is installed on the surface of the auxiliary support (11), and the one end of the piston rod (12) is equipped with support seat (13);The surface of the support seat (13) is paved with cushion (14), and the cushion (14) includes rubber pad (141) and anti-static layer (142), the rubber pad (141) is bonded on the surface of support seat (13), one side of the rubber pad (141) is bonded with anti-static layer (142), one side of the anti-static layer (142) is bonded with pressure resistance layer (143), and the surface of the pressure resistance layer (143) is uniformly equipped with convex block (144) in sequence;The limiting mechanism (7) includes first support plate (71), second support plate (72), connecting block (73), connecting piece (74) and hinge (75), and the both sides of the first support plate (71) and the second support plate (72) are equipped with connecting block (73) respectively, connecting spring (76) is installed between the connecting block (73) arranged on the first support plate (71) and the second support plate (72), one side of four connecting block (73) is hingedly connected with connecting piece (74), and the connecting piece (74) is movably connected by hinge (75) cooperation between them.

2. The turnover mechanism for PCB board processing according to claim 1, characterized in that: One side of the first support plate (71) is key connected with the end of transmission shaft (5), and two damping rods (16) are symmetrically installed between the surface of the first support plate (71) and rotary table (6).

3. The turnover mechanism for PCB board processing according to claim 1, characterized in that: Two adjustable folding supports (15) are symmetrically installed between the support seat (13) and auxiliary support (11).

4. The turnover mechanism for PCB board processing according to claim 3, characterized in that: The anti-static layer (142) is made of rock wool material, the pressure resistance layer (143) is made of integrated structure of silica gel material, and the convex block (144) is integrally formed on the surface of the pressure resistance layer (143).

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