A PCB board automatic clamping batch feeding mechanism

Abstract

The present invention discloses a PCB board automatic clamping batch feeding mechanism, which includes a clamp loading hanging basket capable of carrying a plurality of vertically arranged PCB clamps, a conveying device for realizing automatic conveying of the clamp loading hanging basket, a hanging basket clamping and transferring device for clamping the clamp loading hanging basket so that each PCB clamp in its basket is sequentially moved to a clamp loading station, a clamp lifting and clamping device for clamping and lifting the PCB clamp on the clamp loading station to a PCB clamping station, a PCB clamp guiding device for positioning and guiding the PCB clamp during the lifting process, a clamp opening device for opening the PCB clamp on the clamping station, and a PCB board conveying mechanism for conveying the PCB board to the clamping station and placing it in the PCB clamp. The present invention provides a prerequisite for realizing the automatic assembly line production of PCB boards, realizes the automatic clamping and automatic framing feeding of PCB boards, and greatly improves the production efficiency.

Description

[Technical field]

[0001] The invention belongs to the technical field of PCB board production equipment, and in particular relates to an automatic clamping batch feeding mechanism for PCB boards. [Background technology]

[0002] In the PCB electroplating PTH process, the PCB board needs to be placed in a potion pool, and it needs to be processed in other process steps, and the stability and accuracy of the position must be maintained during processing at each workstation, so a fixture is required to position it. In the prior art, there is no equipment that can automatically clamp large-size PCB boards and automatically assemble and realize batch feeding, which seriously affects the realization of automated production of PCB boards and has low production efficiency.

[0003] Therefore, it is necessary to provide a new PCB board automatic clamping batch feeding mechanism to solve the above problems. [Summary of the invention]

[0004] The main purpose of the present invention is to provide a PCB board automatic clamping batch feeding mechanism, which provides a prerequisite for realizing the automated assembly line production of PCB boards, realizes the automatic clamping and automatic framing feeding of PCB boards, and greatly improves the production efficiency.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions: a PCB board automatic clamping batch feeding mechanism, which includes a clamp loading hanging basket capable of carrying a plurality of vertically arranged PCB clamps, a conveying device for realizing automatic conveying of the clamp loading hanging basket, a hanging basket clamping and transferring device for clamping the clamp loading hanging basket so that each PCB clamp in its basket is moved to a clamp loading station in sequence, a clamp lifting and clamping device for clamping and lifting the PCB clamp on the clamp loading station to a PCB clamping station, a PCB clamp guiding device for positioning and guiding the PCB clamp during the lifting process, a clamp opening device for opening the PCB clamp on the clamping station, and a PCB board conveying mechanism for conveying the PCB board to the clamping station and placing it into the PCB clamp.

[0006] Furthermore, the plywood loading basket includes a supporting frame forming a three-dimensional frame structure, a pair of lower supporting bars arranged at the bottom of the supporting frame, a pair of upper limiting hanging plates arranged at the upper part of the supporting frame and cooperating with the lower supporting bars to carry the limiting PCB plywood, and a gantry hook fixed on both sides of the upper part of the supporting frame, and the lower supporting bars and the upper limiting hanging plates are provided with corresponding first limiting slots; the front and rear sides of the supporting frame are respectively provided with a front baffle and a rear baffle, and the bottom is provided with a hollow bottom plate.

[0007] Furthermore, the basket clamping and transferring device includes a first driving member, a first support plate driven by the first driving member to perform horizontal linear motion and distributed on both sides of the splint loading basket, and a plurality of limiting clamping units fixed on the first support plate and performing limiting clamping on all sides of the splint loading basket.

[0008] Furthermore, the first support plate is also provided with a middle lateral limiting mechanism for limiting the middle parts of both sides of the PCB clamp during the process of the PCB clamp entering and exiting the clamp loading hanging basket, and the middle lateral limiting mechanism includes a second cylinder and a limiting card plate driven by the second cylinder and extending into the clamp loading hanging basket, and a plurality of second limiting card slots are provided on the limiting card plate.

[0009] Furthermore, the PCB clamp guide device includes a clamp lifting mechanism for lifting the PCB clamp in the clamp loading basket upward from the bottom, and a bottom side guide mechanism for limiting and guiding the bottom of the PCB clamp on the left and right sides to prevent it from tilting.

[0010] Furthermore, the clamp lifting and clamping device includes a second driving member, a second support plate driven by the second driving member to move up and down, a fourth cylinder and a fifth cylinder fixed on the second support plate, a first clamp driven by the fourth cylinder to move horizontally and linearly, and a second clamp driven by the fifth cylinder to cooperate with the first clamp to clamp the PCB clamp frame; the second clamp is provided with a hook portion passing through the hollow area of ​​the PCB clamp frame, and the first clamp is provided with a support groove relatively plugged with the hook portion, and the support groove supports the bottom of the hook portion.

[0011] Furthermore, the clamp opening device includes a bottom support unit for supporting the bottom of the PCB clamp, a positioning unit for positioning the four sides of the PCB clamp, and a plurality of clamp opening units for opening all the clamps on the four sides of the PCB clamp.

[0012] Furthermore, the bottom support unit includes a fifth cylinder and an L-shaped bottom support plate which is driven by the fifth cylinder to move forward and backward and supports the bottom of the PCB clamping plate.

[0013] Furthermore, the clamping unit includes an upper clamping module, a lower clamping module, a left clamping module and a right clamping module; each of the above-mentioned clamping modules includes an opening clamping cylinder, a support plate driven by the opening clamping cylinder to move forward and backward, and a plurality of opening clamping pressure plates fixed on the support plate, and the opening clamping pressure plates correspond one by one to the clamps on the PCB clamping plate.

[0014] Furthermore, the positioning unit includes a limiting groove for limiting the position of the left and right frames of the PCB clamp, a lateral positioning mechanism that extends into the limiting groove to press the left and right frames of the PCB clamp toward the middle, and an upper pressing positioning mechanism that presses the upper frame of the PCB clamp downward onto the base unit.

[0015] Compared with the prior art, the beneficial effects of the automatic clamping and batch feeding mechanism for PCB boards of the present invention are: automatic clamping of PCB boards is realized, and vertical placement of batches of PCB clamps is realized by designing a clamp loading basket structure, which lays a foundation for batch feeding, so that batch feeding can be carried out in subsequent electroplating processes, greatly improving production efficiency, and laying an important foundation for the automation of PCB board manufacturing processes, which is of great significance.

Brief Description of the Drawings

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0017] Figure 2 It is a structural schematic diagram of a plywood loading basket in an embodiment of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the conveying device, the hanging basket clamping and transferring device and the PCB clamping plate guiding device in the embodiment of the present invention;

[0019] Figure 4 It is a schematic diagram of the structure of the clamping plate lifting and clamping device and the clamping plate opening device in an embodiment of the present invention;

[0020] Figure 5 It is a partial structural schematic diagram of a clamping plate lifting and clamping device in an embodiment of the present invention;

[0021] Figure 6 It is a structural schematic diagram of the bottom support unit and the lower opening clamping module in an embodiment of the present invention;

[0022] Figure 7 It is a structural schematic diagram of the upper opening clamping module and the clamping plate lifting and clamping device in an embodiment of the present invention;

[0023] Figure 8 It is a structural schematic diagram of a left-opening clamping module and a positioning unit in an embodiment of the present invention;

[0024] The numbers in the figure represent:

[0025] 100 PCB boards are automatically clamped and loaded in batches;

[0026] 1 a clamping plate loading hanging basket, 11 a supporting frame, 12 a lower supporting bar, 121 a first limiting slot, 13 an upper limiting hanging plate, 14 a gantry hook, 15 a front baffle, 16 a rear baffle, 17 a bottom plate;

[0027] 2 conveying device;

[0028] 3 hanging basket clamping and transferring device, 31 first driving member, 32 first supporting plate, 33 limiting clamping unit, 331 first cylinder, 332 V-type limiting, 34 middle side limiting mechanism, 341 second cylinder, 342 limiting clamping plate, 343 second limiting clamping slot;

[0029] 4PCB clamping plate guide device, 41 clamping plate lifting mechanism, 411 third cylinder, 412 lifting seat, 42 bottom side guide mechanism, 421 fourth cylinder, 422 V-type guide block;

[0030] 5 clamping plate lifting and clamping device, 51 second driving member, 52 second supporting plate, 53 fourth cylinder, 54 fifth cylinder, 55 first clamping plate, 551 supporting groove, 56 second clamping plate, 561 hooking part;

[0031] 6 Clamp opening device, 61 bottom support unit, 611 fifth cylinder, 612 L-type bottom support plate, 62 positioning unit, 621 limiting groove, 622 side positioning mechanism, 6221 tenth cylinder, 623 upper clamping positioning mechanism, 6231 eleventh cylinder, 6232 second clamping block, 63 clamping unit, 631 upper clamping module, 6311 sixth cylinder, 6312 third support plate, 6313 first clamping pressure plate, 632 lower clamping module, 6321 seventh cylinder, 6322 fourth support plate, 6323 second clamping pressure plate, 633 left clamping module, 6331 eighth cylinder, 6332 fifth support plate, 6333 third clamping pressure plate, 6334 clamping support plate, 6335 ninth cylinder, 634 right clamping module. [Specific implementation method]

[0032] Embodiment 1:

[0033] Please refer to Figure 1-Figure 8 The present embodiment is a PCB board automatic clamping batch feeding mechanism 100, which includes a clamping plate loading hanging basket 1, a conveying device 2 for realizing automatic conveying of the clamping plate loading hanging basket 1, a hanging basket clamping and transferring device 3 for clamping the clamping plate loading hanging basket 1 on the conveying device 2 and realizing movement of a set distance, a PCB clamping plate guiding device 4 for positioning and guiding the PCB clamping plate at the clamping plate loading station, a clamping plate lifting and clamping device 5 for realizing lifting and lowering of the PCB clamping plate at the clamping plate loading station, and a clamping plate opening device 6 for opening the PCB clamping plate on the clamping plate lifting and clamping device 4 at the clamping station, wherein the clamping station is located above the loading station.

[0034] This embodiment also includes a PCB board transporting mechanism (not shown in the figure) for transporting the PCB board.

[0035] The clamp loading hanging basket 1 comprises a support frame 11 forming a three-dimensional frame structure, a pair of lower support bars 12 arranged at the bottom of the support frame 11, a pair of upper limit hanging plates 13 arranged at the upper part of the support frame 11 and cooperating with the lower support bars 12 to carry the limit PCB clamp, and a gantry hook 14 fixed on both sides of the upper part of the support frame 11. The lower support bars 12 and the upper limit hanging plates 13 are provided with a one-to-one corresponding first limit card slot 121 for carrying the PCB clamp in a vertical state. The front and rear sides of the support frame 11 are respectively provided with a front baffle plate 15 and a rear baffle plate 16 to reduce the impact of the liquid medicine on the surface of the PCB board. The bottom of the support frame 1 is provided with a bottom plate 17, which is a flat hollow hole structure, which greatly reduces the impact of the liquid medicine on the PCB board while ensuring the entry of the liquid medicine. The upper two sides of the PCB clamp extend outward with hanging ears, which are hung in the first limit card slot 121 of the upper limit hanging plate 13, and the bottom is clamped in the first limit card slot 121 of the lower support bar 12.

[0036] The basket clamping and transferring device 3 includes a first driving member 31, a first support plate 32 driven by the first driving member 31 to perform horizontal linear motion and distributed on both sides of the plywood loading basket 1, and a plurality of limit clamping units 33 fixed on the first support plate 32 to limit and clamp the plywood loading basket 1 around. The limit clamping units 33 are provided with two groups respectively located on two horizontal planes at different heights, and each group is provided with four limit clamping units 33 and limits the four corner positions of the plywood loading basket 1 respectively. The limit clamping unit 33 includes a first cylinder 331 and a V-shaped limit 332 driven by the first cylinder 331 to clamp the corner column of the plywood loading basket 1. The basket clamping and transferring device 3 clamps the plywood loading basket 1 through the limit clamping unit 33 and moves forward at an equal distance, so that the PCB plywood in the plywood loading basket 1 moves forward to the loading station for clamping the PCB board.

[0037] The first support plate 32 is also provided with a middle side limiting mechanism 34 for limiting the middle of both sides of the PCB clamping plate when the PCB clamping plate enters and exits the clamping plate loading hanging basket 1. The middle side limiting mechanism 34 includes a second cylinder 341, a limiting card plate 342 driven by the second cylinder 341 to extend into the clamping plate loading hanging basket 1, and a plurality of second limiting card slots 343 are provided on the limiting card plate 342. The second limiting card slots 343 are provided one-to-one with the first limiting card slots 121.

[0038] The PCB clamp plate guide device 4 includes a clamp plate lifting mechanism 41 that lifts the PCB clamp plate in the clamp plate loading hanging basket 1 upward from the bottom, and a bottom side guide mechanism 42 that limits and guides the bottom of the PCB clamp plate on the left and right sides to prevent it from deflecting. The clamp plate lifting mechanism 41 includes a third cylinder 411 and a lifting seat 412 that is driven by the third cylinder 411 to move up and down, and the upper surface of the lifting seat 412 is provided with a V-shaped groove that supports the bottom of the PCB clamp plate. The bottom side guide mechanism 42 is provided with two groups distributed on both sides of the clamp plate loading hanging basket 1, and includes a fourth cylinder 421 and a V-shaped guide block 422 that is driven by the fourth cylinder 421 to extend into the clamp plate loading hanging basket 1 to limit and guide the side of the PCB clamp plate. Since the upper part of the PCB clamp is hung on the clamp loading basket 1, there is a certain gap between the position of the PCB clamp below the clamp loading basket 1 and the side surface of the clamp loading basket 1, and it is easy to shake during the lifting process. The limit guide of the bottom side guide mechanism 42 can effectively ensure the stability of the PCB clamp during the lifting process, prevent the PCB board from falling off and damaging the PCB board, and ensure that the PCB clamp can be accurately placed in the first limit slot 121. Since the PCB clamp has a certain weight, and the PCB board clamped on it is also very large, the bottom of the PCB clamp is stuck in the V-shaped groove, so there will be great resistance when it is clamped and lifted by the clamp lifting clamping device 5. The clamp lifting mechanism 41 can assist the PCB clamp to separate from the clamp loading basket 1, reduce the initial load of the clamp lifting clamping device 5, and prevent the clamping phenomenon.

[0039] In this embodiment, the clamp lifting mechanism 41 has another function, which is to lift the clamp that needs to clamp the PCB board to a higher level than the surface of other PCB clamps arranged side by side, so that the hook structure for clamping on the upper part of the PCB clamp is exposed, thereby providing space for the clamp lifting and clamping device 5 to clamp the PCB clamp, thereby facilitating the clamping of the PCB clamp.

[0040] The clamping plate lifting and clamping device 5 comprises a second driving member 51, a second supporting plate 52 driven by the second driving member 51 to move up and down, a fourth cylinder 53 and a fifth cylinder 54 fixed on the second supporting plate 52, a first clamping plate 55 driven by the fourth cylinder 53 to move horizontally and linearly, and a second clamping plate 56 driven by the fifth cylinder 54 to cooperate with the first clamping plate 55 to clamp the PCB clamping plate frame. The second clamping plate 56 is provided with a hook portion 561 passing through the hollow area of ​​the PCB clamping plate frame, and the first clamping plate 55 is provided with a supporting groove 551 that is plugged with the hook portion 561 and is used to hold the bottom of the hook portion 561 and provide support for the hook portion 561. Since the PCB clamp and the PCB board are both heavy, the general double-sided clamping structure cannot meet the required clamping force, which can easily cause the PCB clamp to be unclamped, posing a major safety hazard, and the PCB clamp and the PCB board are easily damaged. Therefore, this embodiment adopts a through-type clamping method to clamp the PCB clamp. The PCB clamp is equivalent to being hung on a hook formed by two clamps, which greatly improves the clamping safety of the PCB board.

[0041] The clamp opening device 6 includes a bottom supporting unit 61 for supporting the bottom of the PCB clamp, a positioning unit 62 for positioning the four sides of the PCB clamp, and a plurality of clamp opening units 63 for opening all the clamps on the four sides of the PCB clamp.

[0042] The bottom supporting unit 61 includes a fifth cylinder 611 and an L-shaped bottom supporting plate 612 which is driven by the fifth cylinder 611 to move forward and backward and supports the bottom of the PCB clamping plate.

[0043] The clamping unit 63 includes an upper clamping module 631 , a lower clamping module 632 , a left clamping module 633 and a right clamping module 634 .

[0044] The upper opening clamping module 631 includes a sixth cylinder 6311, a third support plate 6312 driven by the sixth cylinder 6311 to move forward and backward, and a plurality of first opening clamping plates 6313 fixed on the third support plate 6312. The first clamping plate 55 provides a supporting force to the PCB clamping board frame in the peripheral area of ​​the clamp corresponding to the first opening clamping plate 6313. All the clamps on the upper frame of the PCB clamping board can be opened by the first opening clamping plate 6313 in the upper opening clamping module 631.

[0045] The lower opening and clamping module 632 includes a seventh cylinder 6321, a fourth support plate 6322 driven by the seventh cylinder 6321 to move forward and backward, and a plurality of second opening and clamping plates 6323 fixed on the fourth support plate 6322. The L-shaped bottom support plate 612 provides support force to the PCB clamping plate frame in the area around the clips corresponding to the second opening and clamping plates 6323. All the clips on the lower frame of the PCB clamping plate can be opened by the second opening and clamping plates 6323 in the lower opening and clamping module 632.

[0046] The left opening clamping module 633 has the same structure as the right opening clamping module 634 and includes an eighth cylinder 6331, a fifth support plate 6332 driven by the eighth cylinder 6331 to move forward and backward, and a plurality of third opening clamping plates 6333 fixed on the fifth support plate 6332. Some of the third opening clamping plates 6333 are provided with opening clamping support plates 6334 that provide support force against the PCB clamping plate when opening the clamp. The opening clamping support plates 6334 are driven by a ninth cylinder 6335 to move forward and backward. All the clamps on the left and right frames of the PCB clamping plate can be opened by the third opening clamping plates 6333 in the left opening clamping module 633 and the right opening clamping module 634.

[0047] The positioning unit 62 includes a limiting groove 621 for limiting the position of the left and right frames of the PCB clamp, a lateral positioning mechanism 622 that extends into the limiting groove 621 to press the left and right frames of the PCB clamp toward the middle, and an upper pressing and positioning mechanism 623 that presses the upper frame of the PCB clamp downward onto the L-shaped bottom support plate 612. The lateral positioning mechanism 622 includes a tenth cylinder 6221 and a first pressing block (not shown in the figure) driven by the tenth cylinder 6221 to move left and right. The upper pressing and positioning mechanism 623 includes an eleventh cylinder 6231 and a second pressing block 6232 driven by the eleventh cylinder 6231 to move up and down. When the clamping plate lifting and clamping device 5 is in the process of clamping the PCB clamping plate to rise, the left and right frames of the PCB clamping plate enter the limiting groove 621, and the PCB clamping plate rises to a set height position higher than the L-shaped bottom support plate 612, and then the L-shaped bottom support plate 612 is extended, and the PCB clamping plate falls on the L-shaped bottom support plate 612, and the left and right positions of the PCB clamping plate are limited by the side positioning mechanisms 622 on both sides, and the upper and lower positions of the PCB clamping plate are limited by the side positioning mechanisms 622 and the L-shaped bottom support plate 612, thereby realizing the fixed positioning of the PCB clamping plate.

[0048] The working process of the automatic clamping batch feeding mechanism 100 of PCB boards in this embodiment is as follows: the clamp loading hanging basket 1 loaded with a plurality of empty PCB clamps is input from the rear end of the conveying device 2 to the set position, and is clamped on all sides by the hanging basket clamping and transferring device 3, and moves forward at an equal distance, so that the PCB clamps in the clamp loading hanging basket 1 arrive at the clamping station one by one; after the corresponding PCB clamps arrive at the clamping station, the clamp lifting mechanism 41 lifts the PCB clamp upwards, and at the same time, the bottom side guide mechanisms 42 on both sides and the middle side limit mechanism 34 extend at the same time to limit and guide the two sides of the PCB clamp; the two clamps of the clamp lifting and clamping device 5 descend to hook the hollow structure of the upper frame of the PCB clamp, and then are lifted up; the bottom support unit 61 extends to support the bottom of the PCB clamp, and the positioning unit 62 positions the PCB clamp on all sides; the clamping unit 6 The upper, lower, left and right opening and clamping modules in 3 act simultaneously to open all the clamps on the PCB clamp; the PCB board handling mechanism absorbs the PCB board and puts it into the PCB clamp, the opening and clamping unit 63 withdraws, and the clamp on the PCB clamp returns to the clamping state to clamp the PCB board; the positioning unit 62 and the bottom bracket unit 61 withdraw, and the clamp lifting and clamping device 5 clamps the PCB clamp with the PCB board and lowers it and puts it back into the clamp loading hanging basket 1; then the PCB clamp guide device 4 and the middle side limit mechanism 34 withdraw, and the hanging basket clamping and transferring device 3 clamps the clamp loading hanging basket 1 and moves forward a set distance, so that the next empty PCB clamp moves to the clamping station, and repeats the next PCB board clamping action. After all PCB clamps in the clamp loading hanging basket 1 are loaded with PCB boards, the whole is output to the next workstation by the conveying device 2, realizing batch feeding and loading.

[0049] The automatic clamping and batch loading mechanism 100 for PCB boards in this embodiment realizes the automatic clamping of PCB boards. By designing the clamp loading basket structure, the vertical placement of batches of PCB clamps is realized, which lays a foundation for batch feeding, so that batch feeding can be carried out in the subsequent electroplating process, greatly improving the production efficiency, and laying an important foundation for the automation of PCB board process, which is of great significance.

[0050] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A PCB board automatic clamping batch feeding mechanism, characterized by: It includes a plate loading basket capable of carrying a plurality of vertically arranged PCB plates, a conveying device for realizing automatic conveying of the plate loading basket, a basket clamping and transferring device for clamping the plate loading basket so that each PCB plate in its basket is moved to a plate loading station in sequence, a plate lifting and clamping device for clamping and lifting the PCB plate on the plate loading station to a PCB clamping station, a PCB plate guiding device for positioning and guiding the PCB plate during the lifting process, a plate opening device for opening the PCB plate on the clamping station, and a PCB board conveying mechanism for conveying the PCB board to the clamping station and placing it into the PCB plate.

2. The PCB board automatic clamping batch feeding mechanism according to claim 1, characterized in that: The plywood loading hanging basket includes a supporting frame forming a three-dimensional frame structure, a pair of lower supporting bars arranged at the bottom of the supporting frame, a pair of upper limit hanging plates arranged at the upper part of the supporting frame and cooperating with the lower supporting bars to carry the limiting PCB plywood, and a gantry hook fixed on both sides of the upper part of the supporting frame, and the lower supporting bars and the upper limit hanging plates are provided with a one-to-one corresponding first limit slot; the front and rear sides of the supporting frame are respectively provided with a front baffle and a rear baffle, and the bottom is provided with a hollow bottom plate.

3. The automatic clamping batch feeding mechanism for PCB boards as claimed in claim 1, characterized in that: The basket clamping and transferring device includes a first driving member, a first support plate driven by the first driving member to perform horizontal linear motion and distributed on both sides of the clamping plate loading basket, and a plurality of limiting clamping units fixed on the first support plate and performing limiting clamping on all sides of the clamping plate loading basket.

4. The automatic clamping batch feeding mechanism for PCB boards as claimed in claim 3, characterized in that: The first support plate is also provided with a middle lateral limiting mechanism for limiting the middle parts of both sides of the PCB clamp during the process of the PCB clamp entering and exiting the clamp loading hanging basket. The middle lateral limiting mechanism includes a second cylinder and a limiting card plate driven by the second cylinder and extending into the clamp loading hanging basket, and a plurality of second limiting card slots are provided on the limiting card plate.

5. The PCB board automatic clamping batch feeding mechanism as claimed in claim 1, characterized in that: The PCB clamp plate guiding device includes a clamp plate lifting mechanism for lifting the PCB clamp plate in the clamp plate loading basket upward from the bottom, and a bottom side guiding mechanism for limiting and guiding the bottom of the PCB clamp plate on the left and right sides to prevent it from deflecting.

6. The PCB board automatic clamping batch feeding mechanism according to claim 1, characterized in that: The clamping plate lifting and clamping device includes a second driving member, a second supporting plate driven by the second driving member to move up and down, a fourth cylinder and a fifth cylinder fixed on the second supporting plate, a first clamping plate driven by the fourth cylinder to move horizontally and linearly, and a second clamping plate driven by the fifth cylinder to cooperate with the first clamping plate to clamp the PCB clamping plate frame; a hook portion passing through a hollow area of ​​the PCB clamping plate frame is provided on the second clamping plate, and a support groove is provided on the first clamping plate to be plugged in relative to the hook portion, and the support groove supports the bottom of the hook portion.

7. The automatic clamping batch feeding mechanism for PCB boards as claimed in claim 1, characterized in that: The clamp opening device comprises a bottom supporting unit for supporting the bottom of the PCB clamp, a positioning unit for positioning the four sides of the PCB clamp, and a plurality of clamp opening units for opening all the clamps on the frames around the four sides of the PCB clamp.

8. The automatic clamping batch feeding mechanism for PCB boards as claimed in claim 7, characterized in that: The bottom support unit comprises a fifth cylinder and an L-shaped bottom support plate which is driven by the fifth cylinder to move forward and backward and supports the bottom of the PCB clamping plate.

9. The automatic clamping batch feeding mechanism for PCB boards as claimed in claim 7, characterized in that: The clamping unit includes an upper clamping module, a lower clamping module, a left clamping module and a right clamping module; each of the above-mentioned clamping modules includes an opening clamping cylinder, a support plate driven by the opening clamping cylinder to move back and forth, and a plurality of opening clamping pressure plates fixed on the support plate, and the opening clamping pressure plates correspond one by one to the clamps on the PCB clamping plate.

10. The automatic clamping batch feeding mechanism for PCB boards as claimed in claim 7, characterized in that: The positioning unit includes a limiting groove for limiting the position of the left and right frames of the PCB clamp, a lateral positioning mechanism that extends into the limiting groove and presses the left and right frames of the PCB clamp toward the middle, and an upper pressing and positioning mechanism that presses the upper frame of the PCB clamp downward onto the base unit.

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