PCB (Printed Circuit Board) chip mounter matched with SMT (Surface Mount Technology) chip mounter

Abstract

The invention discloses a PCB (Printed Circuit Board) chip mounting device matched with an SMT (Surface Mount Technology) chip mounter for use, which relates to the field of PCB chip mounting processing and comprises a bottom plate mounted on the SMT chip mounter; the bearing box is installed on the bottom plate, the top end of the bearing box is arranged in an opening shape, and a concave table used for supporting the PCB is arranged on the side wall of the top end of the bearing box; the ejector pins are arranged in the bearing box and used for conducting auxiliary supporting on the PCB, and moving driving pieces are arranged at the bottoms of the ejector pins; according to the PCB chip mounting device matched with the SMT chip mounter for use, the bearing box and the detachable ejector pin are arranged, so that PCBs of different versions and different models can be effectively supported, various jigs do not need to be used, the manufacturing cost of an enterprise is reduced, turnover and double-sided chip mounting of the PCBs can be realized on the same station through the integrated turnover mechanism, and the production efficiency is improved. The problem that an additional turn-over step is needed in a traditional process is avoided, and the production process is greatly simplified.

Description

Technical Field

[0001] The invention relates to a PCB board patch processing technology, and in particular to a PCB board patch device used in a matching SMT patch machine. Background Art

[0002] During the manufacturing process of LED display screen modules, the production methods of the lamp surface and the driver surface are different, resulting in differences in their production processes. The driver surface components are at a distance from the edge of the PCB, so during the production process, the driver surface can be produced normally without the support of a jig; and the lamp surface is close to the edge of the pad, and the lamp beads are even flush with the edge of the PCB after mounting, so the production process requires the use of a jig to support the whole board mounting of the product. In the actual production process, for different models and versions, due to the non-uniform arrangement of the driver surface components and the inconsistent number of components, the components need to be given way when the module is placed on the jig, and different versions and models require the use of a variety of jigs to cooperate with production.

[0003] Since different versions and models require different jigs to support the bottom of the PCB board to achieve the patching of the PCB board, the production process is complicated and the cost is too high, which is a heavy burden on the company's production. In addition, for double-sided patching of PCB boards, the PCB boards need to be transported to another station to be turned over and then transported to the SMT patch machine for patching, resulting in low patching efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a PCB board patch device used in conjunction with an SMT patch machine, so as to solve the problem in the prior art that different versions and different models require different jigs to support the bottom of the PCB board to realize the patch of the PCB board, resulting in a complicated production process and high cost, which is a heavy burden on enterprise production. In addition, when double-sided patching of the PCB board is performed, the PCB board needs to be transported to another station for turning over and then transported to the SMT patch machine for patching, resulting in low patch efficiency.

[0005] In order to achieve the above object, the present invention provides the following technical solution: a PCB board mounting device used in a matching SMT mounting machine, comprising:

[0006] Base plate, which is mounted on the SMT placement machine;

[0007] The carrying box is installed on the bottom plate, the top of the carrying box is open, and the top side wall of the carrying box is provided with a concave platform for supporting the PCB board;

[0008] A plurality of ejectors are arranged inside the carrying box and used to provide auxiliary support for the PCB board. A movable driving member is arranged at the bottom of the ejectors, and the movable driving member is used to drive the ejectors to move along the height direction of the carrying box.

[0009] A flipping mechanism is installed on a carrying box and is used to clamp and flip the PCB board. The flipping mechanism includes an A drive component and two positioning components. The two positioning components are symmetrically arranged on both sides of the carrying box. One side of the two positioning components is respectively connected to the A drive component. The A drive component is used to drive the two positioning components to move toward or in the opposite direction. The positioning component includes a positioning piece, a B drive component and a flipping component. The other side of the positioning piece is connected to the B drive component for driving the positioning piece to move along the height direction of the carrying box. The flipping component includes a C shaft and a C drive component. One side of the C shaft is connected to the positioning piece, and the other side of the C shaft is connected to the C drive component for driving the C shaft to rotate around its own axis.

[0010] Furthermore, an inserting plate is arranged inside the carrying box, and a plurality of inserting holes for the ejector pins to be inserted are evenly arranged on the inserting plate.

[0011] Furthermore, through holes are provided on both side walls of the carrying box, the through holes are connected to the interior of the carrying box, and the through holes are arranged on the upper part of the plug board, and the through holes are connected to the external vacuum generator through pipelines.

[0012] Furthermore, the plug hole passes through the plug board, the outer wall of the plug board is slidably connected to the inner wall of the carrying box, the movable driving member is an A telescopic driving member, and the lower surface of the plug board is fixedly connected to the movable end of the A telescopic driving member.

[0013] Furthermore, the positioning member includes an A bracket, on which an A rotating shaft is fixedly mounted, and the A rotating shaft is externally rotatably connected to two A connecting rods, the two A connecting rods are symmetrically arranged, one side of the two A connecting rods is fixedly connected to a torsion spring, the other ends of the two torsion springs are fixedly connected to the A rotating shaft, the ends of the two A connecting rods away from the A rotating shaft are fixedly connected to the B rotating shaft, and the bottom ends of the two B rotating shafts are rotatably connected to A limiting wheels.

[0014] Furthermore, the positioning member also includes a B connecting rod fixedly connected to the side wall of the B rotating shaft, and the end of the B connecting rod away from the B rotating shaft is rotatably connected to the B limiting wheel, and one side of the B connecting rod is connected to an E driving assembly that can drive the B connecting rod to rotate around the axis of the B rotating shaft.

[0015] Furthermore, the E drive assembly includes a guide rail, which is fixedly mounted on the A bracket. A transverse groove is provided on the guide rail. A sliding rod is slidably connected to the inner wall of the transverse groove. A C connecting rod is fixedly connected to the top of the sliding rod. The end of the C connecting rod away from the sliding rod is fixedly connected to the B connecting rod.

[0016] Furthermore, the B drive assembly includes a B bracket, on which a B telescopic drive member is fixedly mounted, a movable end of the B telescopic drive member is fixedly connected to a C bracket, a guide rod is fixedly connected to the lower surface of the C bracket, an outer wall of the guide rod is slidingly connected to the B bracket, a flip assembly is mounted on the C bracket, an outer wall of the C rotating shaft is rotatably connected to the C bracket, and one end of the C rotating shaft is fixedly connected to the A bracket.

[0017] Furthermore, the C drive assembly is an A rotary drive component, the A rotary drive component is fixedly mounted on the C bracket, and the output shaft end of the A rotary drive component is fixedly connected to the end of the C rotating shaft.

[0018] Furthermore, the A drive assembly includes a gear, with racks meshing on both sides of the gear, one side of the two racks is slidably connected to the inner wall of the carrying box, the ends of the two racks away from each other are fixedly connected to cross bars, the outer walls of the two cross bars are slidably connected to the carrying box, the ends of the two cross bars away from the gears are respectively fixedly connected to the adjacent B brackets, and one side of the gear is connected to a B rotating drive member for driving the gear to rotate around the gear axis.

[0019] Compared with the prior art, the PCB mounting device provided by the present invention, which is used in a matching SMT mounting machine, can effectively support PCB boards of different versions and models by providing a carrying box and a detachable ejector pin, without using a variety of jigs, thereby reducing the manufacturing cost of the enterprise;

[0020] The integrated flipping mechanism can realize the flipping and double-sided patching of PCB boards at the same workstation, avoiding the problem of additional flipping steps required in traditional processes and greatly simplifying the production process. The A limit wheel and B limit wheel can effectively prevent the vibration and displacement of the PCB board during the flipping process, ensuring the patch accuracy and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of the overall external structure provided by an embodiment of the present invention;

[0023] Figure 2 A schematic cross-sectional view of an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the coordination of a bottom plate, a carrying box, an ejector pin, a through hole and an insert plate provided in an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the structure of a positioning member provided in an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the coordination of the B rotating shaft, the B connecting rod, the B limiting wheel, the sliding rod and the C connecting rod provided in an embodiment of the present invention;

[0027] Figure 6A schematic diagram of the structure of a B drive component provided in an embodiment of the present invention;

[0028] Figure 7 A schematic diagram of the structure of the A drive component provided in an embodiment of the present invention;

[0029] Figure 8 The embodiment of the present invention provides Figure 2 A is an enlarged schematic diagram.

[0030] Description of reference numerals:

[0031] 1. Bottom plate; 2. Carrying box; 3. Ejector pin; 4. Flipping mechanism; 41. Positioning member; 411. Bracket A; 412. A rotating shaft; 413. A connecting rod; 414. Torsion spring; 415. B rotating shaft; 416. A limiting wheel; 417. B connecting rod; 418. B limiting wheel; 419. Guide rail; 4191. Sliding rod; 4192. C connecting rod; 42. A driving component; 421. Gear; 422. Rack; 423. Cross bar; 424. B rotating driving component; 43. B driving component; 431. Bracket B; 432. B telescopic driving component; 433. Bracket C; 434. Guide rod; 44. Flipping component; 441. C rotating shaft; 442. C driving component; 5. Insert plate; 6. Moving driving component; 7. Through hole. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] See also Figure 1 to Figure 2 , a PCB board mounting device used in conjunction with an SMT mounting machine, comprising:

[0034] A base plate 1, which is mounted on an SMT placement machine;

[0035] The carrying box 2 is installed on the bottom plate 1. The top of the carrying box 2 is open, and the top side wall of the carrying box 2 is provided with a concave platform for supporting the PCB board. A plurality of mounting holes are provided at the bottom of the carrying box 2, and a plurality of positioning rods matching the mounting holes are provided on the bottom plate 1. The bottom plate 1 is fixed to the SMT placement machine by a detachable connection method such as bolts, so that the carrying box 2 can be easily disassembled and assembled on the SMT placement machine.

[0036] A plurality of ejector pins 3 are arranged inside the carrying box 2 and are used to provide auxiliary support for the PCB board;

[0037] The flipping mechanism 4 is installed on the carrying box 2 and is used to clamp and flip the PCB board. The flipping mechanism 4 includes an A drive component 42 and two positioning components. The two positioning components are symmetrically arranged on both sides of the carrying box 2. One side of the two positioning components is respectively connected to the A drive component 42. The A drive component 42 is used to drive the two positioning components to move toward or in the opposite direction. The positioning component includes a positioning member 41, a B drive component 43 and a flipping component 44. The other side of the positioning member 41 is connected to the B drive component 43 for driving the positioning member 41 to move along the height direction of the carrying box 2. The flipping component 44 includes a C shaft 441 and a C drive component 442. One side of the C shaft 441 is connected to the positioning member 41, and the other side of the C shaft 441 is connected to the C drive component 442 for driving the C shaft 441 to rotate around its own axis.

[0038] The prior art requires the use of jigs for production during the lamp surface mounting process. Different versions and models require different jigs to support the bottom of the PCB board to achieve the mounting of the PCB board, which results in a complicated production process and high costs, which is a heavy burden on the production of enterprises. In addition, for double-sided mounting of the PCB board, the PCB board needs to be transported to another station for flipping and then transported to the SMT mounting machine for mounting, resulting in low mounting efficiency.

[0039] To this end, the present application sets a carrying box 2, places the PCB board on the concave platform on the top side wall, and supports the PCB through multiple ejector pins 3 to realize the veneer work of the PCB board. When the PCB needs to be veneered, the ejector pins 3 are driven to move upward by the mobile driving member 6, and the ejector pins 3 lift the PCB board. After the PCB board is lifted away from the carrying box 2, the A driving component 42 is controlled to drive the two positioning components to move toward each other, and the positioning component 41 in the positioning component clamps and fixes the PCB board, and then the positioning component 41 is driven by the B driving component 43 to move upward along the height direction of the carrying box 2. , so that the PCB board moves to a position where it can be flipped. At this time, the C drive component 442 drives the C shaft 441 to rotate, and the C shaft 441 drives the positioning member 41 to rotate, thereby realizing the flipping of the PCB board. After the flipping is completed, the positioning member 41 is driven by the B drive component 43 to move downward along the height direction of the carrying box 2, so that the PCB board moves downward. After the PCB board moves down to the extreme position, the A drive component 42 is controlled to drive the two positioning components to move in the opposite direction, and the PCB board falls onto the carrying box 2, so that the patch work on the other side of the PCB board can be carried out, effectively improving the patch efficiency of the PCB board.

[0040] See also Figures 2 to 3In one embodiment of the present invention, a plug board 5 is provided inside the carrying box 2, and a plurality of plug holes for the ejector pins 3 to be inserted are evenly provided on the plug board 5, so that the ejector pins 3 can be inserted into the plug holes at different positions to support PCB boards of different versions and models. This device can replace the lamp surface mounting fixture, saving manufacturing costs for enterprises;

[0041] In one embodiment of the present invention, through holes 7 are provided on both side walls of the carrying box 2, the through holes 7 are connected to the interior of the carrying box 2, and the through holes 7 are arranged on the upper part of the plug board 5. The through holes 7 are connected to an external vacuum generator through a pipeline. The vacuum generator is a suction port of a vacuum pump connected to the through holes 7, and the exhaust port of the vacuum generator is directly connected to the atmosphere. The gas in the carrying box 2 is extracted by the vacuum pump, so that negative pressure is generated in the carrying box 2. Under the action of the negative pressure, the PCB board is adsorbed on the carrying box 2, so that the PCB board is more stable;

[0042] In one embodiment of the present invention, the plug hole passes through the plug plate 5, the outer wall of the plug plate 5 is slidably connected to the inner wall of the carrying box 2, the movable driving member 6 is a telescopic driving member A, the lower surface of the plug plate 5 is fixedly connected to the movable end of the telescopic driving member A, the telescopic driving member A is a telescopic cylinder or a hydraulic cylinder, and the telescopic driving member A is fixedly installed inside the carrying box 2;

[0043] The plug plate 5 is moved by the extension and retraction of the moving end of the A telescopic driving member, and the plug plate 5 drives the ejector pin 3 to move when moving, and the ejector pin 3 lifts up the PCB, so that the positioning members 41 in the two positioning components move toward each other to clamp the PCB board, so as to realize the flipping of the PCB board.

[0044] See also Figure 4 In one embodiment of the present invention, the positioning member 41 includes an A bracket 411, on which an A rotating shaft 412 is fixedly mounted, and the A rotating shaft 412 is externally rotatably connected to two A connecting rods 413, the two A connecting rods 413 are symmetrically arranged, one side of the two A connecting rods 413 is fixedly connected to a torsion spring 414, and the other ends of the two torsion springs 414 are fixedly connected to the A rotating shaft 412, and the ends of the two A connecting rods 413 away from the A rotating shaft 412 are fixedly connected to the B rotating shaft 415, and the bottom ends of the two B rotating shafts 415 are rotatably connected to the A limiting wheels 416;

[0045] When the A driving component 42 drives the two positioning components to move toward or in opposite directions, the positioning members 41 in the two positioning components move toward or in opposite directions. When the two positioning members 41 move toward each other, the A limiting wheel 416 in the positioning member 41 first contacts the side of the PCB board. When the positioning member 41 continues to move, the A limiting wheel 416 moves relative to the side of the PCB board. At this time, the torsion spring 414 is twisted by force, and the four A limiting wheels 416 clamp and fix the PCB board.

[0046] When the PCB board is separated from the carrying box 2, the PCB board is lifted up by the ejector pin 3. During and after the PCB board is lifted up, there is no limiting member to effectively limit the PCB board. The PCB board is easily vibrated and displaced under the vibration of a vibration source such as an SMT placement machine, resulting in that after the PCB board is turned over, it cannot be accurately placed on the carrying box 2 for placement on the other side. For this reason, in one embodiment of the present invention, the positioning member 41 also includes a B connecting rod 417 fixedly connected to the side wall of the B rotating shaft 415, and the end of the B connecting rod 417 away from the B rotating shaft 415 is rotatably connected to a B limiting wheel 418, and one side of the B connecting rod 417 is connected to an E driving component capable of driving the B connecting rod 417 to rotate around the axis of the B rotating shaft 415;

[0047] When the A limiting wheel 416 contacts and clings to the edge of the PCB board, the E driving assembly drives the B connecting rod 417 to rotate around the axis of the B rotating shaft 415, and the B connecting rod 417 drives the B limiting wheel 418 to rotate to the other side of the PCB board and cling to the other side of the PCB board. Under the action of the A limiting wheel 416 and the B limiting wheel 418, the PCB board is repositioned, and the four side edges of the PCB board are clamped and fixed, which effectively ensures the stability of the PCB when it is turned over;

[0048] In one embodiment of the present invention, the outer side walls of the A limiting wheel 416 and the B limiting wheel 418 are covered with anti-skid pads to increase the friction when in contact with the PCB board, so as to clamp the PCB board more firmly;

[0049] In one embodiment of the present invention, the E drive assembly includes a guide rail 419, which is fixedly mounted on the A bracket 411. A transverse groove is provided on the guide rail 419, and a slide bar 4191 is slidably connected to the inner wall of the transverse groove. A C connecting rod 4192 is fixedly connected to the top of the slide bar 4191, and one end of the C connecting rod 4192 away from the slide bar 4191 is fixedly connected to the B connecting rod 417;

[0050] When the two positioning members 41 move toward each other, the A limit wheel 416 in the positioning member 41 first contacts the side of the PCB board, the A connecting rod 413 rotates relative to the A rotating shaft 412, the torsion spring 414 is twisted by force, and the A connecting rod 413 drives the B connecting rod 417 and the C connecting rod 4192 to rotate through the B rotating shaft 415, and the sliding rod 4191 on the C connecting rod 4192 slides along the transverse groove on the guide rail 419, and the sliding rod 4191 drives the B limit wheel 418 to rotate around the axis of the B rotating shaft 415 through the C connecting rod 4192, thereby realizing the contact and limitation of the B limit wheel 418 on the other side of the PCB board.

[0051] See also Figure 1 , Figure 2 , Figure 6 and Figure 7In one embodiment of the present invention, the B drive assembly 43 includes a B bracket 431, on which a B telescopic drive member 432 is fixedly mounted, the B telescopic drive member 432 is a telescopic cylinder or a hydraulic cylinder, the movable end of the B telescopic drive member 432 is fixedly connected to a C bracket 433, a guide rod 434 is fixedly connected to the lower surface of the C bracket 433, the outer wall of the guide rod 434 is slidably connected to the B bracket 431, the flip assembly 44 is mounted on the C bracket 433, the outer wall of the C rotating shaft 441 is rotatably connected to the C bracket 433, and one end of the C rotating shaft 441 is fixedly connected to the A bracket 411;

[0052] When the moving end of the B telescopic driving member 432 is extended and retracted, it drives the C bracket 433 to move up and down, and the C bracket 433 drives the C rotating shaft 441 to drive the positioning member 41 to move up and down, so that the two positioning members 41 can cooperate to drive the PCB board to move up and down, so that the PCB board is away from the carrying box 2 to achieve space for the PCB board to flip;

[0053] In one embodiment of the present invention, the C drive assembly 442 is an A rotary drive member, the A rotary drive member is fixedly mounted on the C bracket 433, the output shaft end of the A rotary drive member is fixedly connected to the end of the C rotating shaft 441, and the A rotary drive member is a rotary cylinder or a motor;

[0054] The C shaft 441 is driven to rotate by the A rotating drive member, and the C shaft 441 drives the positioning member 41 to rotate around the axis of the C shaft 441 through the A bracket 411, so that the two positioning members 41 drive the PCB board to rotate around the axis of the C shaft 441, thereby realizing the flipping of the PCB board.

[0055] See also Figure 2 and Figure 7 In one embodiment of the present invention, the A driving assembly 42 includes a gear 421, both sides of the gear 421 are meshed with racks 422, one side of the two racks 422 is slidably connected to the inner wall of the carrying box 2, the ends of the two racks 422 away from each other are fixedly connected to a cross bar 423, the outer side walls of the two cross bars 423 are slidably connected to the carrying box 2, the ends of the two cross bars 423 away from the gear 421 are respectively fixedly connected to the B brackets 431 adjacent thereto, and one side of the gear 421 is connected to a B rotating driving member 424 for driving the gear 421 to rotate around the axis of the gear 421, the B rotating driving member 424 is a rotating cylinder or a motor, the B rotating driving member is fixedly installed inside the carrying box 2, and the gear 421 is fixedly sleeved on the outside of the output shaft of the B rotating driving member 424;

[0056] When the two positioning components need to move toward or against each other, the gear 421 is driven to rotate through the B rotating drive member 424, and the gear 421 drives the two racks 422 to move in opposite directions. The racks 422 drive the B bracket 431 to move through the cross bar 423, and the B bracket 431 drives the positioning components to move, thereby realizing the toward or against movement of the two positioning components, thereby realizing the clamping and release of the PCB board by the two positioning members 41.

[0057] In one embodiment of the present invention, a corresponding control unit can be set for use. The control unit can select any controller to be connected to the electrical parts in the present application, so as to control the opening and closing operation of each electrical part. This part is the prior art. Here, a single-chip microcomputer can be provided as a control unit for display. The single-chip microcomputer in this embodiment is a typical embedded microcontroller (Microcontroller Unit), which is composed of an arithmetic unit, a controller, a memory, an input and output device, etc., which is equivalent to a microcomputer. Compared with the general-purpose microprocessor used in personal computers, it emphasizes self-supply (no external hardware) and cost saving. Its biggest advantage is that it is small in size and can be placed inside the instrument, but it has a small storage capacity, a simple input and output interface, and low functional consumption.

[0058] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A PCB mounting device for use with an SMT mounting machine, characterized in that: include: A base plate (1) mounted on a SMT placement machine; A carrying box (2) is mounted on the bottom plate (1), the top of the carrying box (2) is arranged in an open shape, and the top side wall of the carrying box (2) is provided with a concave platform for supporting the PCB board; A plurality of ejector pins (3) are arranged inside the carrying box (2) and are used to provide auxiliary support for the PCB board; a movable driving member (6) is arranged at the bottom of the ejector pins (3); the movable driving member (6) is used to drive the ejector pins (3) to move along the height direction of the carrying box (2); A flipping mechanism (4) is mounted on a carrying box (2) and is used to clamp and flip a PCB board. The flipping mechanism (4) comprises an A drive assembly (42) and two positioning assemblies. The two positioning assemblies are symmetrically arranged on both sides of the carrying box (2). One side of the two positioning assemblies is respectively connected to the A drive assembly (42). The A drive assembly (42) is used to drive the two positioning assemblies to move towards or in the opposite direction. The positioning assembly comprises a positioning member (41), a B drive assembly (43) and a flipping assembly (44). The other side of the positioning member (41) is connected to the B drive assembly (43) used to drive the positioning member (41) to move along the height direction of the carrying box (2). The flipping assembly (44) comprises a C rotating shaft (441) and a C driving assembly (442). One side of the C rotating shaft (441) is connected to the positioning member (41), and the other side of the C rotating shaft (441) is connected to the C driving assembly (442) used to drive the C rotating shaft (441) to rotate around its own axis.

2. A PCB mounting device for use with an SMT mounting machine according to claim 1, characterized in that: An inserting plate (5) is arranged inside the carrying box (2), and a plurality of inserting holes for the ejector pins (3) to be inserted are evenly arranged on the inserting plate (5).

3. A PCB board mounting device for use with an SMT mounting machine according to claim 2, characterized in that: Through holes (7) are provided on both side walls of the carrying box (2), the through holes (7) are connected to the interior of the carrying box (2), and the through holes (7) are arranged on the upper part of the plug plate (5). The through holes (7) are connected to an external vacuum generator through a pipeline.

4. A PCB board mounting device for use with an SMT mounting machine according to claim 2, characterized in that: The plug hole passes through the plug plate (5), the outer wall of the plug plate (5) is slidably connected to the inner wall of the carrying box (2), the movable driving member (6) is an A telescopic driving member, and the lower surface of the plug plate (5) is fixedly connected to the movable end of the A telescopic driving member.

5. A PCB mounting device for use with an SMT mounting machine according to claim 1, characterized in that: The positioning member (41) comprises an A bracket (411), an A rotating shaft (412) is fixedly mounted on the A bracket (411), the A rotating shaft (412) is externally rotatably connected to two A connecting rods (413), the two A connecting rods (413) are symmetrically arranged, one side of the two A connecting rods (413) is fixedly connected to a torsion spring (414), the other ends of the two torsion springs (414) are fixedly connected to the A rotating shaft (412), the ends of the two A connecting rods (413) away from the A rotating shaft (412) are fixedly connected to the B rotating shaft (415), and the bottom ends of the two B rotating shafts (415) are rotatably connected to the A limiting wheels (416).

6. A PCB mounting device for use with an SMT mounting machine according to claim 5, characterized in that: The positioning member (41) further comprises a B connecting rod (417) fixedly connected to the side wall of the B rotating shaft (415); one end of the B connecting rod (417) away from the B rotating shaft (415) is rotatably connected to a B limiting wheel (418); one side of the B connecting rod (417) is connected to an E driving assembly capable of driving the B connecting rod (417) to rotate around the axis of the B rotating shaft (415).

7. A PCB mounting device for use with an SMT mounting machine according to claim 6, characterized in that: The E driving assembly comprises a guide rail (419), which is fixedly mounted on the A bracket (411). A transverse groove is provided on the guide rail (419), a sliding rod (4191) is slidably connected to the inner wall of the transverse groove, a C connecting rod (4192) is fixedly connected to the top of the sliding rod (4191), and an end of the C connecting rod (4192) away from the sliding rod (4191) is fixedly connected to the B connecting rod (417).

8. The PCB mounting device for use with an SMT mounting machine according to claim 5, characterized in that: The B drive assembly (43) comprises a B bracket (431), a B telescopic drive member (432) is fixedly mounted on the B bracket (431), a movable end of the B telescopic drive member (432) is fixedly connected to a C bracket (433), a guide rod (434) is fixedly connected to the lower surface of the C bracket (433), an outer wall of the guide rod (434) is slidably connected to the B bracket (431), a flip assembly (44) is mounted on the C bracket (433), an outer wall of a C rotating shaft (441) is rotatably connected to the C bracket (433), and one end of the C rotating shaft (441) is fixedly connected to the A bracket (411).

9. A PCB mounting device for use with an SMT mounting machine according to claim 8, characterized in that: The C driving assembly (442) is an A rotating driving member, which is fixedly mounted on the C bracket (433), and the output shaft end of the A rotating driving member is fixedly connected to the end of the C rotating shaft (441).

10. A PCB mounting device for use with an SMT mounting machine according to claim 8, characterized in that: The A driving assembly (42) comprises a gear (421), both sides of the gear (421) are meshed with racks (422), one side of the two racks (422) is slidably connected to the inner wall of the carrying box (2), the ends of the two racks (422) away from each other are fixedly connected to a cross bar (423), the outer side walls of the two cross bars (423) are slidably connected to the carrying box (2), the ends of the two cross bars (423) away from the gear (421) are respectively fixedly connected to the B brackets (431) adjacent thereto, and one side of the gear (421) is connected to a B rotating driving member (424) for driving the gear (421) to rotate around the axis of the gear (421).

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