A positioning device for inner layer PCB board

Abstract

The present application provides a positioning device for inner-layer PCB boards, which relates to the field of PCB board processing, including a pre-positioning mechanism for centering the PCB board, including a support frame arranged on a feed conveying unit, a positioning seat that can slide at any angle in the horizontal direction is arranged on the top of the support frame, a material plate is installed on the top of the positioning seat, a group of first adsorbents are installed in the middle of the material plate, and an X-RAY identification mechanism, including a support plate arranged on a frame and located on both sides of the middle of the feed conveying unit, and an X-ray camera module opposite to the material plate is vertically arranged on the support plate. The present application reads the inner-layer positioning target and direction mark of the PCB board through the X-ray camera module, and performs position information analysis, and then adjusts the position of the first correction unit, the second correction unit and the pre-positioning mechanism, so that the PCB board to be cut can be discharged in a unified position and direction; no drilling is required, and the inner-layer target and direction mark are directly used for positioning.

Description

Technical Field

[0001] The invention relates to the field of PCB board processing, and in particular to an alignment device for an inner layer PCB board. Background Art

[0002] After the PCB board is pressed, the board edge needs to be cut. The CCD alignment machine configured in the relevant cutting and grinding production line (alignment machine + cutting and grinding machine + chamfering machine + other equipment) usually uses through holes to position the PCB board, and the relevant cutting data of the PCB board needs to be input to the machine. The specific steps are as follows:

[0003] 1. Turn on the power switch of the equipment to put the equipment in the waiting state;

[0004] 2. Enter the relevant information of the board to be cut;

[0005] 3. Place the board into the loading position of the cutting and grinding machine;

[0006] 4. The alignment machine uses upper suction to transport the plate to the positioning platform;

[0007] 5. CCD grabs the through hole for positioning, calculates the deviation of the two target holes from the central axis, and then corrects it through the rotation and displacement of the upper suction transplantation;

[0008] 6. The alignment machine uses suction to transport the board to the cutting machine for cutting.

[0009] Although this processing method can realize the positioning of the PCB board, it still has the following disadvantages in the actual production process: for the PCB board without through-hole positioning, it will not be possible to perform positioning cutting. Summary of the invention

[0010] The purpose of the present invention is to address the problem that the CCD alignment machine configured in the existing related cutting and grinding production lines (alignment machine + cutting and grinding machine + chamfering machine + other equipment) usually uses through holes to position the PCB board. For PCB boards without through hole positioning, positioning and cutting cannot be performed.

[0011] In order to achieve the above-mentioned purpose of the invention, the present invention provides an alignment device for an inner layer PCB board to improve the above-mentioned problem.

[0012] A positioning device for an inner layer PCB board, comprising a frame, a feed conveying unit arranged at the feed end of the frame, a discharge conveying unit arranged at the transfer end of the frame, a first position correction unit arranged between the feed conveying unit and the discharge conveying unit and used for turning over the PCB, and a second position correction unit used for rotating the PCB within a range of 90° in the forward and reverse directions, and also comprising a pre-positioning mechanism for centering the PCB board, comprising a support frame arranged on the feed conveying unit, a positioning seat sliding at any angle in the horizontal direction is arranged on the top of the support frame, and the top of the positioning seat is A material plate is installed at the end, a group of first adsorption parts is installed in the middle of the material plate, a rotating assembly is installed at the bottom of the support frame, a first piston member is horizontally installed at the top of the rotating assembly, and the output end of the first piston member corresponds to the positioning seat; and an X-RAY identification mechanism, which is used to obtain the position information of the PCB board placed on the material plate, including a support plate arranged on the frame and located on both sides of the middle of the feeding and conveying unit, an X-ray camera module opposite to the material plate is vertically arranged on the support plate, wherein the two ends of the PCB board are respectively provided with a positioning target and a direction mark.

[0013] As a preferred technical solution of the present application, the middle part of the support frame has an annular panel, the inner side of the annular panel has an annular enclosure, the positioning seat is annular and is coaxially installed with the annular panel, the first piston member is located inside the positioning seat, and a group of elastic reset members are annularly equidistantly installed between the side wall of the positioning seat and the annular enclosure.

[0014] As a preferred technical solution of the present application, a group of support seats are equidistantly arranged in a ring shape on the inner side of the annular enclosure, balls are embedded at both ends of the support seats, and annular slide plates in contact with the balls are arranged at both ends of the positioning seats.

[0015] As a preferred technical solution of the present application, the first adsorption component includes an adsorption seat installed on the bottom of the material plate and a group of vacuum suction nozzles equidistantly arranged in a ring shape on the adsorption seat, the material plate has a through hole for the first adsorption component to pass through, the side of the adsorption seat has a connecting head for connecting the vacuum suction nozzle to an external air source, and the bottom end of the adsorption seat is installed on the annular slide through a mounting plate.

[0016] As a preferred technical solution of the present application, the bottom of the support frame has a base plate, a U-shaped mounting frame is installed on the base plate, the rotating assembly includes a first connecting tube rotatably installed on the U-shaped mounting frame, the first piston member is fixed to the top end of the first connecting tube and is connected to the first connecting tube, a first driven gear is installed on the first connecting tube, a motor and a driving gear arranged at the output end of the motor are installed on the base plate, and the driving gear is meshed with the first driven gear.

[0017] As a preferred technical solution of the present application, a first inner ratchet mechanism and a crank slider mechanism are installed on the U-shaped mounting frame, a linkage shaft is installed on one side of the U-shaped mounting frame, a second piston member is installed on the base plate, the crank slider mechanism is arranged between the linkage shaft and the output end of the second piston member, a second connecting tube is fixed to the end of the second piston member, the outer end of the second connecting tube is connected to the first connecting tube through a rotating connector, a second driven gear meshing with the first driven gear is installed on the U-shaped mounting frame, the top end of the linkage shaft is connected to the second driven gear through a second inner ratchet mechanism, and the first inner ratchet mechanism and the second inner ratchet mechanism have opposite rotation directions.

[0018] As a preferred technical solution of the present application, the first driven gear and the second driven gear are each provided with an inner ratchet groove in the middle and have a hollow extension shaft at the bottom, and the extension shaft is mounted on the top of the U-shaped mounting frame through a bearing.

[0019] As a preferred technical solution of the present application, the linkage shaft and the first connecting pipe are respectively mounted on a U-shaped mounting frame through one-way bearings, and the two one-way bearings are respectively located at the bottom of the top of the U-shaped mounting frame.

[0020] As a preferred technical solution of the present application, the crank slider mechanism includes a turntable fixedly mounted on the bottom end of the linkage shaft, a connecting rod hinged between the output end of the second piston member and the turntable, a linear slide rail is installed on the base plate, and the end of the output end of the second piston member is slidably connected to the linear slide rail through a slider.

[0021] As a preferred technical solution of the present application, the feed conveying unit includes a first linear module arranged in the middle of the frame, the support frame is installed on the first linear module through a substrate, the discharge conveying unit includes a second linear module arranged on the side of the frame, the second positioning unit is installed on the second linear module, and the first positioning unit is installed on the side of the second linear module and opposite to the first linear module.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] In the scheme of this application:

[0024] 1. The X-ray camera module reads the inner positioning target and direction mark of the PCB board, and transmits the information to the computer for position information analysis. By confirming the position information such as the board surface and direction, and adjusting the position of the first positioning unit, the second positioning unit and the pre-positioning mechanism, the PCB boards to be cut can be discharged in a unified position and direction. Compared with the traditional CCD grabbing through-hole method, there is no need to punch holes, and the inner layer target and direction mark are directly used for positioning;

[0025] 2. Through the pre-positioning mechanism, the center point of the PCB board on the material plate is obtained through the X-ray camera module, and then the direction of the first piston member is adjusted according to the relative direction between its center point and the pre-set alignment point. By driving the output end of the first piston member to move, the material plate is pushed to move along this direction so that the center point of the PCB board coincides with the alignment point to achieve the center positioning of the PCB board, thereby improving the cutting accuracy of the PCB board, and there is no need to position the PCB board before the loading process, making the processing process more flexible and adaptable to a wider range. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of the alignment device for the inner PCB board provided in this application;

[0027] Figure 2 A schematic diagram of the structure of the pre-positioning mechanism and the feeding and conveying unit of the alignment device for the inner PCB board provided in the present application;

[0028] Figure 3 A schematic diagram of the structure of the pre-positioning mechanism of the alignment device for the inner PCB board provided in the present application;

[0029] Figure 4 A schematic diagram of the structure in which the positioning seat and the support frame of the alignment device for the inner PCB board provided in the present application are separated;

[0030] Figure 5 A schematic diagram of the partial structure of a support frame of an alignment device for an inner PCB board provided in the present application;

[0031] Figure 6 A schematic diagram of the structure of the first piston member and the second piston member of the alignment device for the inner PCB board provided in the present application;

[0032] Figure 7 A schematic structural diagram of a first inner ratchet mechanism of an alignment device for an inner PCB board provided in the present application;

[0033] Figure 8 A top view of the first piston member and the positioning seat of the alignment device for the inner PCB board provided in the present application.

[0034] Indicated in the figure:

[0035] 100, frame; 101, feeding conveying unit; 102, discharging conveying unit; 103, first positioning unit; 104, second positioning unit; 105, X-RAY identification mechanism; 1051, support plate; 1052, X-ray camera module;

[0036] 200, support frame; 201, annular panel; 202, annular enclosure; 203, elastic reset member; 204, support seat; 205, ball bearing; 206, base plate; 207, U-shaped mounting frame;

[0037] 300, positioning seat; 301, annular slide plate; 302, material plate; 303, adsorption seat; 304, vacuum nozzle;

[0038] 400, first connecting pipe; 401, first driven gear; 402, first piston member; 403, second piston member; 404, second connecting pipe; 405, rotary connector;

[0039] 500, motor; 501, driving gear;

[0040] 600, first inner ratchet mechanism; 601, second inner ratchet mechanism; 700, crank slider mechanism; 701, linkage shaft; 702, second driven gear; 703, inner ratchet groove; 704, extension shaft; 705, turntable; 706, connecting rod; 707, linear guide rail. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments 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 creative work should fall within the scope of protection of the present invention.

[0042] The present invention will be further described below in conjunction with the embodiments.

[0043] Example: Please refer to Figures 1 to 8 , a positioning device for inner layer PCB board, comprising a frame 100, a feeding conveying unit 101 arranged at the feeding end of the frame 100, a discharging conveying unit 102 arranged at the cutting end of the frame 100, a first positioning unit 103 arranged between the feeding conveying unit 101 and the discharging conveying unit 102 and used for turning over the PCB, and a second positioning unit 104 used for rotating the PCB within a range of 90° in the forward and reverse directions. For details, please refer to Figure 1The feeding and conveying unit 101 includes a first linear module arranged in the middle of the frame 100, the support frame 200 is installed on the first linear module through the base plate 206, the discharging and conveying unit 102 includes a second linear module arranged on the side of the frame 100, the second positioning unit 104 is installed on the second linear module, and the first positioning unit 103 is installed on the side of the second linear module and opposite to the first linear module; through the arrangement of the first linear module, the second linear module, the first positioning unit 103 and the second positioning unit 104, the direction of the PCB board that needs to be turned over or rotated can be adjusted so that the direction is consistent when the board is discharged and cut, and then there is no need to fix the direction of the PCB material board 302 when loading, and the application is more flexible and adaptable.

[0044] It also includes a pre-positioning mechanism for centering the PCB board, including a support frame 200 arranged on the feed conveying unit 101, a positioning seat 300 that slides at any angle in the horizontal direction is arranged on the top of the support frame 200, a material plate 302 is installed on the top of the positioning seat 300, a group of first adsorption members are installed in the middle of the material plate 302, a rotating assembly is installed at the bottom of the support frame 200, a first piston member 402 is horizontally installed on the top of the rotating assembly, and the output end of the first piston member 402 corresponds to the positioning seat 300; and an X-RAY identification mechanism 105, for obtaining the position information of the PCB board placed on the material plate 302, including a support plate 1051 arranged on the frame 100 and located on both sides of the middle of the feed conveying unit 101, an X-ray camera module 1052 opposite to the material plate 302 is vertically arranged on the support plate 1051, wherein the two ends of the PCB board have a positioning target and a direction mark respectively;

[0045] The present application reads the inner layer positioning target and direction mark of the PCB board through the X-ray camera module 1052, and transmits its information to the computer for position information analysis. By confirming the position information such as the board surface and direction, and then adjusting the position of the first positioning unit 103, the second positioning unit 104 and the pre-positioning mechanism, the PCB boards to be cut can be discharged in a unified position and direction. Compared with the traditional CCD grasping through-hole method, there is no need to punch holes, and the inner layer target and direction mark are directly used for positioning.

[0046] Among them, in the specific process of centering the PCB board on the material plate 302, the center point of the PCB board on the material plate 302, that is, the intersection of the perpendicular midlines of the two adjacent sides of the PCB board, is first obtained through the X-ray camera module 1052, and then the direction of the first piston member 402 is adjusted according to the relative direction of its center point and a pre-set alignment point (generally speaking, the center point when the discharge conveying unit 102 absorbs the PCB board), and the output end of the first piston member 402 is driven to move to push the material plate 302 so that the center point of the PCB board coincides with the alignment point; through the setting of the above-mentioned structure, before the PCB board is loaded onto the material plate 302, there is no need to position the PCB board before the loading process, so that the processing process is more flexible and has a wider range of adaptability, which is beneficial to improving the processing efficiency and quality.

[0047] Specifically, please refer to Figures 2 to 4 The support frame 200 has an annular panel 201 in the middle, and an annular panel 201 has an annular enclosure 202 on the inner side. The positioning seat 300 is annular and is coaxially installed with the annular panel 201. The first piston member 402 is located inside the positioning seat 300. A group of elastic reset members 203 are annularly and equidistantly installed between the side wall of the positioning seat 300 and the annular enclosure 202.

[0048] By setting an annular positioning seat 300, the first piston member 402 is installed inside the positioning seat 300, and the positioning seat 300 can be pushed to move along its axial direction through the output end of the first piston member 402 to adjust its position, and after the output end is reset, the positioning seat 300 can be driven to reset through the elastic reset member 203, so as to continuously adjust the position of the next PCB board to be cut and moved in the center, and the elastic reset member 203 is installed in an annular shape with equal distances, so that the positioning seat 300 that moves at any angle in the horizontal direction can be reset, and the first piston member 402 and the positioning seat 300 are set independently, which is convenient for adjusting the direction of the first piston member 402.

[0049] Specifically, please refer to Figures 4 to 5 A group of support seats 204 are equidistantly arranged in a ring shape on the inner side of the annular enclosure 202, and balls 205 are respectively embedded at both ends of the support seats 204. An annular slide plate 301 in contact with the balls 205 is arranged at both ends of the positioning seat 300; the annular slide plates 301 located at the upper and lower ends of the positioning seat 300 can keep the material plate 302 level, which is convenient for the X-ray camera module 1052 to identify the PCB board. The balls 205 can reduce the friction of the annular slide plate 301 when it moves at any angle in the horizontal direction, and make its movement smoother.

[0050] Specifically, please refer to Figure 3 to Figure 4The first adsorption component includes an adsorption seat 303 installed on the bottom of the material plate 302 and a group of vacuum suction nozzles 304 arranged in a ring shape and equidistantly on the adsorption seat 303. The material plate 302 has a through hole for the first adsorption component to pass through. The side of the adsorption seat 303 has a connector for connecting the vacuum suction nozzle 304 with an external air source. The bottom end of the adsorption seat 303 is installed on the annular slide 301 through a mounting plate. By arranging the adsorption seat 303 above the positioning seat 300, when the position of the PCB board on the material plate 302 is adjusted, the state of the vacuum suction nozzle 304 is not affected by the movement of the positioning seat 300.

[0051] Specifically, please refer to Figures 3 to 6 The support frame 200 has a base plate 206 at the bottom, a U-shaped mounting frame 207 is installed on the base plate 206, the rotating assembly includes a first connecting tube 400 rotatably mounted on the U-shaped mounting frame 207, a first piston member 402 is fixed to the top of the first connecting tube 400 and communicated with the first connecting tube 400, a first driven gear 401 is installed on the first connecting tube 400, a motor 500 and a driving gear 501 arranged at the output end of the motor 500 are installed on the base plate 206, and the driving gear 501 is meshed with the first driven gear 401; through the cooperation of the above structure, the first connecting tube 400 can be driven to rotate and adjust the horizontal direction of the first piston member 402, so that the relative direction of its output end and the center point of the PCB board located on the material plate 302 and the pre-set alignment point is consistent, thereby facilitating the centering of the PCB board.

[0052] Specifically, please refer to Figures 3 to 6 , a first inner ratchet mechanism 600 and a crank slider mechanism 700 are installed on the U-shaped mounting frame 207, a linkage shaft 701 is installed on one side of the U-shaped mounting frame 207, a second piston member 403 is installed on the base plate 206, the crank slider mechanism 700 is arranged between the linkage shaft 701 and the output end of the second piston member 403, a second connecting pipe 404 is fixed to the end of the second piston member 403, the outer end of the second connecting pipe 404 is connected to the first connecting pipe 400 through a rotating connector 405, a second driven gear 702 meshing with the first driven gear 401 is installed on the U-shaped mounting frame 207, the top end of the linkage shaft 701 is connected to the second driven gear 702 through the second inner ratchet mechanism 601, and the first inner ratchet mechanism 600 and the second inner ratchet mechanism 601 have opposite rotation directions;

[0053] By setting up the first inner ratchet mechanism 600, the crank slider mechanism 700, the second inner ratchet mechanism 601 and the second piston member 403, in a specific implementation, the first rotation direction of the motor 500 is used to drive the first connecting tube 400 to rotate unidirectionally, so as to adjust the horizontal angle direction of the first piston member 402, and the second rotation direction of the motor 500 is used to drive the crank slider mechanism 700 to operate. The crank slider mechanism 700 has the characteristic of converting unidirectional cyclic rotation into linear reciprocating motion, which makes it easy to control the amount of medium in the second piston member 403 entering the first piston member 402, so that its output end pushes the positioning seat 300 to move, thereby adjusting the position of the positioning seat 300. The first piston member 402 can be driven to rotate and the output end of the driver can be extended or retracted by a single motor 500, thereby reducing the number and complexity of driving sources, making the overall structure more compact and simple, and saving costs.

[0054] Specifically, please refer to Figure 3 and Figure 7 The first driven gear 401 and the second driven gear 702 are both provided with an inner ratchet groove 703 in the middle and have a hollow extension shaft 704 at the bottom. The extension shaft 704 is mounted on the top of the U-shaped mounting frame 207 through a bearing; the ratchet teeth of the two inner ratchet mechanisms are elastically mounted on the corresponding first connecting tube 400 and the drive shaft of the crank slider mechanism 700, respectively, which will not be elaborated here.

[0055] By independently mounting the first driven gear 401 and the second driven gear 702 on the U-shaped mounting frame 207, when the motor 500 drives the driving gear 501 to rotate in the first direction, since the first inner ratchet mechanism 600 and the second inner ratchet mechanism 601 rotate in opposite directions, the first connecting tube 400 can be driven to rotate in one direction in this state, and can also rotate synchronously with the second driven gear 702, but will not drive the crank slider mechanism 700 to move. On the contrary, when the motor 500 drives the driving gear 501 to rotate in the second direction, the crank slider mechanism 700 is driven to move through the transmission of the first driven gear 401 and the second driven gear 702, and the first connecting tube 400 will not rotate in this state. By setting the above structure, the rotation and operation of the first piston member 402 can be driven independently and do not interfere with each other.

[0056] Among them, the linkage shaft 701 and the first connecting tube 400 are respectively installed on the U-shaped mounting frame 207 through one-way bearings, and the two one-way bearings are respectively located at the bottom of the top of the U-shaped mounting frame 207; due to the characteristic that the one-way bearing can only rotate in one direction, the static stability of the linkage shaft 701 is maintained when the first connecting tube 400 is driven to rotate, and the static stability of the first connecting tube 400 is maintained when the linkage shaft 701 is driven to rotate, thereby avoiding mutual interference between the two internal ratchet mechanisms during the synchronous operation.

[0057] Specifically, please refer to Figure 6 The crank slider mechanism 700 includes a rotating disk 705 fixedly mounted on the bottom end of the linkage shaft 701, a connecting rod 706 hinged between the output end of the second piston member 403 and the rotating disk 705, a linear slide rail 707 is mounted on the base plate 206, and the end of the output end of the second piston member 403 is slidably connected to the linear slide rail 707 through a slider;

[0058] As can be seen from the above, the output end of the second piston member 403 can be driven to perform a reciprocating motion by rotating the turntable 705 once. Correspondingly, the extension amount of the first output end is adjusted by rotating the turntable 705 within the range of 0°-180°. When the turntable 705 rotates 180°, the amount of the medium in the second piston member 403 entering the first piston member 402 reaches the maximum value.

[0059] In the specific implementation, firstly, the amount of the medium that needs to enter the first piston member 402 (i.e., the length of driving the output end thereof to extend) is obtained according to the distance between the center point of the PCB board on the material plate 302 and the preset alignment point, and then the rotation angle of the turntable 705 is obtained, and the linear movement drive of the second piston member 403 driven by the connecting rod 706 during the rotation is used to realize the amount of pushing the medium in the second piston member 403 into the medium in the first piston member 402, so that the output end of the first piston member 402 extends at a fixed distance, and the PCB board is centrally positioned;

[0060] It can be explained that, before the next PCB board is centered, the turntable 705 can be driven to rotate one circle (the uncompleted rotation of the turntable 705 last time), so that the output end of the first piston member 402 returns to the initial position, thereby facilitating the centering of the PCB board again; although the moving seat will continue to move a distance along the original angle direction during this process, it will also reset after the output end of the first piston member 402 is reset, so it will not affect the centering process of the next PCB board.

[0061] Through the cooperation of the above-mentioned structure, in the process of continuously centering the PCB board to be cut, since the first piston member 402 rotates unidirectionally, its angle can be cyclically adjusted through the unidirectional rotation. Therefore, it is only necessary to drive the turntable 705 to rotate one circle to control the output end of the first piston member 402 to reset so that the entire pre-positioning mechanism can maintain its initial state.

[0062] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A positioning device for an inner layer PCB board, comprising a frame (100), a feed conveying unit (101) arranged at a feed end of the frame (100), a discharge conveying unit (102) arranged at a transfer end of the frame (100), a first positioning unit (103) arranged between the feed conveying unit (101) and the discharge conveying unit (102) and used for turning over the PCB, and a second positioning unit (104) used for rotating the PCB within a range of 90° in the forward and reverse directions, characterized in that: Also includes: A pre-positioning mechanism, used for centering a PCB board, comprises a support frame (200) arranged on a feed conveying unit (101), a positioning seat (300) which slides at any angle in a horizontal direction is arranged on the top of the support frame (200), a material plate (302) is installed on the top of the positioning seat (300), a group of first adsorption members is installed in the middle of the material plate (302), a rotating assembly is installed on the bottom of the support frame (200), a first piston member (402) is horizontally installed on the top of the rotating assembly, and an output end of the first piston member (402) corresponds to the positioning seat (300); The bottom of the support frame (200) is provided with a base plate (206), a U-shaped mounting frame (207) is mounted on the base plate (206), the rotating assembly comprises a first connecting tube (400) rotatably mounted on the U-shaped mounting frame (207), the first piston member (402) is fixed to the top end of the first connecting tube (400) and is in communication with the first connecting tube (400), a first driven gear (401) is mounted on the first connecting tube (400), a motor (500) and a driving gear (501) arranged at the output end of the motor (500) are mounted on the base plate (206), and the driving gear (501) is meshed with the first driven gear (401); The U-shaped mounting frame (207) is mounted with a first inner ratchet mechanism (600) and a crank slider mechanism (700); a linkage shaft (701) is mounted on one side of the U-shaped mounting frame (207); a second piston member (403) is mounted on the base plate (206); the crank slider mechanism (700) is arranged between the linkage shaft (701) and the output end of the second piston member (403); and a second connecting pipe (404) is fixed to the end of the second piston member (403). , the outer end of the second connecting tube (404) is connected to the first connecting tube (400) via a rotating connector (405), a second driven gear (702) meshing with the first driven gear (401) is mounted on the U-shaped mounting frame (207), the top end of the linkage shaft (701) is connected to the second driven gear (702) via a second inner ratchet mechanism (601), and the first inner ratchet mechanism (600) and the second inner ratchet mechanism (601) have opposite rotation directions; The X-RAY identification mechanism (105) is used to obtain position information of a PCB board placed on a material plate (302), and comprises a support plate (1051) arranged on a frame (100) and located on both sides of the middle of a feed conveying unit (101), wherein an X-ray camera module (1052) opposite to the material plate (302) is vertically arranged on the support plate (1051), wherein two ends of the PCB board respectively have a positioning target and a direction mark.

2. The alignment device for inner PCB board according to claim 1, characterized in that: The support frame (200) has an annular panel (201) in the middle, and an annular enclosure (202) is provided on the inner side of the annular panel (201). The positioning seat (300) is annular and is coaxially mounted with the annular panel (201). The first piston member (402) is located inside the positioning seat (300). A group of elastic reset members (203) are equidistantly mounted in an annular shape between the side wall of the positioning seat (300) and the annular enclosure (202).

3. The alignment device for inner PCB board according to claim 2, characterized in that: A group of support seats (204) are arranged in an annular shape and equidistantly on the inner side of the annular enclosure (202), and balls (205) are respectively embedded at both ends of the support seats (204). Both ends of the positioning seat (300) are provided with an annular slide plate (301) in contact with the balls (205).

4. The alignment device for inner PCB board according to claim 3, characterized in that: The first adsorption component comprises an adsorption seat (303) mounted on the bottom of the material plate (302) and a group of vacuum suction nozzles (304) arranged in an annular shape and equidistantly on the adsorption seat (303); the material plate (302) has a through hole for the first adsorption component to pass through; the side of the adsorption seat (303) has a connector for connecting the vacuum suction nozzle (304) to an external air source; and the bottom end of the adsorption seat (303) is mounted on the annular slide plate (301) via a mounting plate.

5. The alignment device for inner PCB board according to claim 4, characterized in that: The first driven gear (401) and the second driven gear (702) are both provided with an inner ratchet groove (703) in the middle and have a hollow extension shaft (704) at the bottom. The extension shaft (704) is mounted on the top of the U-shaped mounting frame (207) via a bearing.

6. The alignment device for inner PCB board according to claim 5, characterized in that: The linkage shaft (701) and the first connecting pipe (400) are respectively mounted on the U-shaped mounting frame (207) via one-way bearings, and the two one-way bearings are respectively located at the bottom of the top of the U-shaped mounting frame (207).

7. The alignment device for inner PCB board according to claim 6, characterized in that: The crank slider mechanism (700) comprises a rotating disk (705) fixedly mounted on the bottom end of the linkage shaft (701), a connecting rod (706) hinged between the output end of the second piston member (403) and the rotating disk (705), a linear slide rail (707) being mounted on the base plate (206), and the end of the output end of the second piston member (403) being slidably connected to the linear slide rail (707) via a slider.

8. The alignment device for inner PCB board according to claim 7, characterized in that: The infeed conveying unit (101) comprises a first linear module arranged in the middle of the frame (100), the support frame (200) is mounted on the first linear module via a base plate (206), the outfeed conveying unit (102) comprises a second linear module arranged on the side of the frame (100), the second positioning unit (104) is mounted on the second linear module, and the first positioning unit (103) is mounted on the side of the second linear module and opposite to the first linear module.

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