PCB support screw locking assembly equipment

Abstract

The utility model belongs to the field of equipment for assembling, specifically relates to a kind of PCB support screw lock attachment equipment for assembling, including rack, the top of the rack is horizontally provided with conveying mechanism, the top of the conveying mechanism is detachably provided with carrier, the carrier includes bottom plate, the top of the bottom plate is provided with PCB limiting slot, the top edge of the bottom plate is provided with several support placing groove, the side of the conveying mechanism is separately provided with first mechanical arm and second mechanical arm, the moving stage of the first mechanical arm is vertically provided with first lifting mechanism, the lifting platform of the first lifting mechanism is provided with assembling mechanism, the moving stage of the second mechanical arm is vertically provided with second lifting mechanism, the lifting platform of the second lifting mechanism is provided with lock attachment mechanism.The utility model has the beneficial effects that by being provided with first mechanical arm, second mechanical arm, assembling mechanism and lock attachment mechanism, the automatic lock attachment of PCB support screw can be realized, and the assembling efficiency of PCB support is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of assembly equipment, specifically a PCB bracket screw fastening assembly equipment. Background Technology

[0002] PCB brackets, as key components supporting and fixing printed circuit boards in electronic devices, play a crucial role in improving mechanical stability, optimizing heat dissipation, and enabling modular design. Their applications cover demanding scenarios such as consumer electronics, automotive electronics, industrial control, and aerospace. Traditional PCB brackets mostly use glass fiber reinforced epoxy resin (FR-4) or polyimide (PI). The former is known for its low cost and mature manufacturing process, while the latter is widely used in the aerospace field due to its high-temperature resistance. In recent years, metal brackets (such as stainless steel and aluminum alloys) have seen an increased adoption in automotive and power electronics modules due to their high strength and thermal conductivity.

[0003] PCB brackets need to be attached to the surface of the PCB board with screws during assembly. In most cases, the screws are attached manually by hand with a screwdriver, which is inefficient and prone to errors, affecting the attachment accuracy. Utility Model Content

[0004] The purpose of this invention is to solve the problem of low efficiency and screw fastening accuracy of existing PCB brackets.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A PCB bracket screw fastening assembly device includes a frame, a conveying mechanism horizontally arranged on the top of the frame, a carrier detachably arranged on the top of the conveying mechanism, the carrier including a base plate, a PCB limiting groove formed on the top of the base plate, and several bracket placement grooves formed on the top edge of the base plate. A first robotic arm and a second robotic arm are respectively arranged on the side of the conveying mechanism. A first lifting mechanism is vertically arranged on the moving platform of the first robotic arm, and an assembly mechanism is arranged on the lifting platform of the first lifting mechanism. A second lifting mechanism is vertically arranged on the moving platform of the second robotic arm, and a fastening mechanism is arranged on the lifting platform of the second lifting mechanism. A screw hopper is fixedly connected to the top edge of the frame away from the second robotic arm. The fastening mechanism includes a mounting frame, a lifting cylinder is fixedly connected to the bottom of the side wall of the mounting frame, a screw gun is fixedly connected to the lifting platform of the lifting cylinder, a negative pressure generator is arranged on the lower side of the mounting frame, and a suction tube is fixedly connected to the bottom of the negative pressure generator.

[0007] Furthermore, a guide block is fixedly connected to the top of the negative pressure generator, the head of the screw gun is coaxially arranged with the suction tube, the head of the screw gun extends through the guide block into the interior of the suction tube, and a conical feeding hopper is fixedly connected to the top of the screw hopper.

[0008] Furthermore, the conveying mechanism includes a fixed streamline and a movable streamline arranged in parallel. The bottom of the fixed streamline is fixedly connected to the top of the frame, and the bottom of the movable streamline is slidably connected to the top of the frame. The sliding direction of the movable streamline is perpendicular to the fixed streamline.

[0009] Furthermore, a blocking cylinder is fixedly connected to the middle of the side wall of the movable streamline facing the fixed streamline, a fixed pressure plate is horizontally fixedly connected to the top of the outer side of the fixed streamline, a floating pressure plate is horizontally fixedly connected to the top of the outer side of the movable streamline, a lifting mechanism is provided between the bottom of the fixed pressure plate and the floating pressure plate, and a positioning plate is detachably provided between the top of the fixed pressure plate and the floating pressure plate, with several positioning grooves opened on the top of the positioning plate.

[0010] Furthermore, the assembly mechanism includes a connecting column, a connecting cylinder detachably provided on the outer side of the connecting column, an assembly frame fixedly connected to the bottom of the side wall of the connecting cylinder, a vacuum suction cup provided at the bottom of the assembly frame, a plurality of suction nozzles provided at the bottom of the vacuum suction cup, and a plurality of springs connecting the vacuum suction cup and the assembly frame.

[0011] Furthermore, a barcode scanning mechanism is provided at the bottom of the lifting mechanism on the side away from the blocking cylinder, and a visual positioning mechanism is provided at the bottom of the lifting mechanism on the side facing the blocking cylinder.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. The present invention relates to a PCB bracket screw fastening assembly device, which, by setting up a first robotic arm, a second robotic arm, an assembly mechanism and a fastening mechanism, can realize the automatic fastening of PCB bracket screws, effectively improving the assembly efficiency of PCB brackets.

[0014] 2. The PCB bracket screw fastening assembly equipment of this utility model, by setting a positioning plate and a vision positioning mechanism, can perform positioning during PCB bracket assembly and screw fastening, effectively improving the assembly accuracy of PCB bracket. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a PCB bracket screw fastening assembly device according to the present invention.

[0016] Figure 2This is a schematic diagram of a visual positioning mechanism for a PCB bracket screw fastening assembly equipment according to the present invention.

[0017] Figure 3 This is a schematic diagram of a conveying mechanism for a PCB bracket screw fastening assembly equipment according to the present invention.

[0018] Figure 4 This is a schematic diagram of a PCB bracket screw fastening assembly equipment carrier structure according to the present invention.

[0019] Figure 5 This is a schematic diagram of the assembly mechanism of a PCB bracket screw fastening assembly equipment according to the present invention.

[0020] Figure 6 This is a schematic diagram of the screw fastening mechanism of a PCB bracket screw fastening assembly equipment according to the present invention.

[0021] In the diagram: 1. Frame; 2. Conveying mechanism; 201. Fixed flow line; 202. Moving flow line; 203. Blocking cylinder; 204. Lifting mechanism; 205. Fixed pressure plate; 206. Floating pressure plate; 207. Positioning plate; 208. Positioning slot; 3. Carrier; 301. Base plate; 302. PCB limiting slot; 303. Bracket placement slot; 4. First robotic arm; 5. First lifting mechanism; 6. Assembly mechanism; 601 602. Connecting column; 603. Connecting cylinder; 604. Assembly frame; 605. Vacuum suction cup; 606. Suction nozzle; 7. Second robotic arm; 8. Second lifting mechanism; 9. Locking mechanism; 901. Mounting frame; 902. Lifting cylinder; 903. Screw gun; 904. Guide block; 905. Negative pressure generator; 906. Suction tube; 10. Scanning mechanism; 11. Vision positioning mechanism; 12. Screw hopper; 13. Conical hopper. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-2 , Figure 4 as well as Figure 6The PCB bracket screw fastening assembly equipment of this embodiment includes a frame 1. A conveying mechanism 2 is horizontally arranged on the top of the frame 1 for conveying a carrier 3 and materials. The carrier 3 is detachably arranged on the top of the conveying mechanism 2. The carrier 3 includes a base plate 301. A PCB limiting groove 302 is opened on the top of the base plate 301. A plurality of bracket placement grooves 303 are opened on the top edge of the base plate 301. A first robotic arm 4 and a second robotic arm 7 are respectively arranged on the side of the conveying mechanism 2. A first lifting mechanism 5 is vertically arranged on the moving platform of the first robotic arm 4. An assembly mechanism 6 is arranged on the lifting platform of the first lifting mechanism 5 for assembling the bracket and the PCB board. A second lifting mechanism 8 is vertically arranged on the moving platform of the second robotic arm 7. The lifting platform of the second lifting mechanism 8 is arranged with... The locking mechanism 9 is used to lock the bracket to the top of the PCB board with screws. The top of the frame 1 is fixedly connected to the side edge away from the second robotic arm 7. The locking mechanism 9 includes a mounting frame 901. A lifting cylinder 902 is fixedly connected to the bottom of the side wall of the mounting frame 901. A screw gun 903 is fixedly connected to the lifting platform of the lifting cylinder 902. A negative pressure generator 905 is provided on the lower side of the mounting frame 901. A suction tube 906 is fixedly connected to the bottom of the negative pressure generator 905. A guide block 904 is fixedly connected to the top of the negative pressure generator 905. The head of the screw gun 903 is coaxially arranged with the suction tube 906. The head of the screw gun 903 extends through the guide block 904 into the interior of the suction tube 906. A conical feeding hopper 13 is fixedly connected to the top of the screw hopper 12. During assembly, the carrier 3 is transported to the assembly station via the conveying mechanism 2. At this time, the first robotic arm 4 drives the first lifting mechanism 5 and the assembly mechanism 6 to place the bracket inside the bracket placement slot 303 onto the top of the PCB board inside the PCB limiting slot 302. Then, the second robotic arm 7 drives the second lifting mechanism 8 and the locking mechanism 9 to lock the screws of the bracket. During locking, the second robotic arm 7 drives the screw gun 903 and the bottom suction tube 906 to move directly above the screw hopper 12. At this time, the second lifting mechanism 8 drives the suction tube 906 to move downward and insert it into the conical feeding hopper 13. During the downward movement of the suction tube 906, the negative pressure generator 905 is activated. This creates negative pressure at the bottom of the straw 906, attracting the screw. Then, the second lifting mechanism 8 moves the straw 906 back to its original position, and the second robotic arm 7 drives the straw 906 to move directly above the locking position of the bracket. The second lifting mechanism 8 then drives the straw 906 downward until the bottom of the screw is inserted into the locking hole of the bracket. At this point, the negative pressure generator 905 is turned off, the screw gun 903 is activated, and the lifting cylinder 902 drives the screw gun 903 downward, so that the head of the screw gun 903 passes through the straw 906 and abuts against the screw, locking it. Repeating the above steps can automatically lock screws in different positions, effectively improving the assembly efficiency of the bracket.

[0024] Please see Figure 3The conveying mechanism 2 includes a fixed streamline 201 and a movable streamline 202 arranged in parallel. The bottom of the fixed streamline 201 is fixedly connected to the top of the frame 1, and the bottom of the movable streamline 202 is slidably connected to the top of the frame 1. The sliding direction of the movable streamline 202 is perpendicular to the fixed streamline 201. A blocking cylinder 203 is fixedly connected to the middle of the side wall of the movable streamline 202 facing the fixed streamline 201. A fixed pressure plate 205 is horizontally fixedly connected to the top of the outer side of the fixed streamline 201, and a floating pressure plate 206 is horizontally fixedly connected to the top of the outer side of the movable streamline 202. A lifting mechanism 204 is provided between the bottom of the fixed pressure plate 205 and the floating pressure plate 206. A positioning plate 207 is detachably provided between the top of the fixed pressure plate 205 and the floating pressure plate 206. Several positioning grooves 208 are opened on the top of the positioning plate 207. When the carrier 3 is being transported, the sliding movable streamline 202 is made to match the spacing between the fixed streamline 201 and the movable streamline 202. When the bracket is being assembled, the blocking cylinder 203 moves to the blocking position to limit and fix the carrier 3. At this time, the lifting mechanism 204 lifts the carrier 3 until the two sides of the carrier 3 abut against the fixed pressure plate 205 and the floating pressure plate 206, so that the carrier 3 moves upward to the assembly position. The positioning plate 207 and the positioning groove 208 can be used to position the assembly position of the bracket, thereby improving the assembly accuracy of the bracket.

[0025] Please see Figure 5 The assembly mechanism 6 includes a connecting column 601, a connecting cylinder 602 detachably provided on the outside of the connecting column 601, an assembly frame 603 fixedly connected to the bottom of the side wall of the connecting cylinder 602, a vacuum suction cup 604 provided at the bottom of the assembly frame 603, a plurality of suction nozzles 605 provided at the bottom of the vacuum suction cup 604, and a plurality of springs connecting the vacuum suction cup 604 and the assembly frame 603. During assembly, the first robotic arm 4 drives the vacuum suction cup 604 to move directly above the bracket placement slot 303. At this time, the first lifting mechanism 5 drives the vacuum suction cup 604 to move downward until the bottom suction nozzle 605 contacts the bracket, lifting the bracket. Then, the first lifting mechanism 5 resets, and the first robotic arm 4 drives the vacuum suction cup 604 to move directly above the positioning slot 208. At this time, the first lifting mechanism 5 drives the vacuum suction cup 604 to move downward until the bracket abuts against the PCB board at the top of the PCB limiting slot 302. At this time, the assembly frame 603 continues to move downward, and the spring is compressed until both ends of the assembly frame 603 contact the PCB board, generating downward pressure on the PCB board and limiting the bracket and PCB board to prevent the bracket from tilting when the screws are tightened. Through the above steps, the bracket is automatically assembled. The spring can prevent the bracket from making hard contact with the PCB board, avoiding damage to the bracket or PCB board.

[0026] A barcode scanning mechanism 10 is installed on the bottom side of the lifting mechanism 204 away from the blocking cylinder 203, and a visual positioning mechanism 11 is installed on the bottom side of the lifting mechanism 204 facing the blocking cylinder 203. During assembly, the information of the PCB board can be scanned and registered by the barcode scanning mechanism 10. During the assembly of the bracket by the first robotic arm 4, the vacuum suction cup 604 drives the bracket past the top of the visual positioning mechanism 11, which can detect the assembly position of the bracket and prevent the bracket from tilting during assembly.

[0027] Working principle: During assembly, the carrier 3 is transported to the assembly station via the conveying mechanism 2. While transporting the carrier 3, the sliding movable flow line 202 is adjusted to match the spacing between the fixed flow line 201 and the movable flow line 202. During bracket assembly, the blocking cylinder 203 moves to the blocking station to limit and fix the carrier 3. At this time, the lifting mechanism 204 lifts the carrier 3 until its two side edges abut against the fixed pressure plate 205 and the floating pressure plate 206, causing the carrier 3 to move upwards to the assembly station. The positioning plate 207 and the positioning groove 208 can position the bracket at its assembly location, improving the assembly accuracy. Meanwhile, the first robotic arm 4 drives the first lifting mechanism 5 and the assembly machine... The assembly mechanism 6 places the bracket inside the bracket placement slot 303 onto the top of the PCB board inside the PCB limiting slot 302. During assembly, the first robotic arm 4 drives the vacuum suction cup 604 to move directly above the bracket placement slot 303. At this time, the first lifting mechanism 5 drives the vacuum suction cup 604 to move downward until the bottom suction nozzle 605 contacts the bracket, lifting it up. Then, the first lifting mechanism 5 resets, and the first robotic arm 4 drives the vacuum suction cup 604 to move directly above the positioning slot 208. At this time, the first lifting mechanism 5 drives the vacuum suction cup 604 to move downward until the bracket abuts against the top of the PCB board in the PCB limiting slot 302. Meanwhile, the assembly frame 603 continues to move downward, compressing the spring until assembly is complete. Both ends of the bracket 603 contact the PCB board, exerting downward pressure on the PCB board and limiting the position of the bracket and the PCB board to prevent the bracket from tilting during screw tightening. Through the above steps, the bracket is automatically assembled. The spring prevents the bracket from making hard contact with the PCB board, avoiding damage to the bracket or the PCB board. Then, the second robotic arm 7 drives the second lifting mechanism 8 and the locking mechanism 9 to tighten the screws of the bracket. During tightening, the second robotic arm 7 drives the screw gun 903 and the suction tube 906 at the bottom to move directly above the screw hopper 12. At this time, the second lifting mechanism 8 drives the suction tube 906 to move downward and insert it into the conical feeding hopper 13. During the process, the negative pressure generator 905 is activated, creating negative pressure at the bottom of the straw 906 to attract the screw. Then, the second lifting mechanism 8 drives the straw 906 to reset, and the second robotic arm 7 drives the straw 906 to move directly above the bracket locking position. The second lifting mechanism 8 then drives the straw 906 downward until the bottom of the screw is inserted into the locking hole of the bracket. At this point, the negative pressure generator 905 is turned off, the screw gun 903 is activated, and the lifting cylinder 902 drives the screw gun 903 downward, so that the head of the screw gun 903 passes through the straw 906 and abuts against the screw, locking it. Repeating the above steps can automatically lock screws in different positions, effectively improving the assembly efficiency of the bracket.During assembly, the PCB board information can be scanned and registered using the barcode scanning mechanism 10. During the assembly of the bracket by the first robotic arm 4, the vacuum suction cup 604 moves the bracket past the top of the vision positioning mechanism 11, which can detect the assembly position of the bracket and prevent it from tilting during assembly.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PCB holder screw locking assembly apparatus, characterized by: The system includes a frame (1), a conveying mechanism (2) is horizontally arranged on the top of the frame (1), a carrier (3) is detachably arranged on the top of the conveying mechanism (2), the carrier (3) includes a base plate (301), a PCB limiting groove (302) is opened on the top of the base plate (301), and several bracket placement grooves (303) are opened on the top edge of the base plate (301). A first robotic arm (4) and a second robotic arm (7) are respectively arranged on the side of the conveying mechanism (2). A first lifting mechanism (5) is vertically arranged on the moving platform of the first robotic arm (4), and an assembly mechanism (6) is arranged on the lifting platform of the first lifting mechanism (5). The moving platform of the two robotic arms (7) is vertically provided with a second lifting mechanism (8). The lifting platform of the second lifting mechanism (8) is provided with a locking mechanism (9). The top of the frame (1) is fixedly connected to a screw hopper (12) on the side edge away from the second robotic arm (7). The locking mechanism (9) includes a mounting frame (901). The bottom of the side wall of the mounting frame (901) is fixedly connected to a lifting cylinder (902). The lifting platform of the lifting cylinder (902) is fixedly connected to a screw gun (903). A negative pressure generator (905) is provided on the lower side of the mounting frame (901). A suction tube (906) is fixedly connected to the bottom of the negative pressure generator (905).

2. The PCB support screw locking assembly apparatus of claim 1, wherein: The top of the negative pressure generator (905) is fixedly connected to a guide block (904), the head of the screw gun (903) is coaxially arranged with the suction tube (906), the head of the screw gun (903) extends through the guide block (904) into the interior of the suction tube (906), and the top of the screw hopper (12) is fixedly connected to a conical feeding hopper (13).

3. The PCB support screw locking assembly apparatus of claim 1, wherein: The conveying mechanism (2) includes a fixed streamline (201) and a movable streamline (202) arranged in parallel. The bottom of the fixed streamline (201) is fixedly connected to the top of the frame (1), and the bottom of the movable streamline (202) is slidably connected to the top of the frame (1). The sliding direction of the movable streamline (202) is perpendicular to the fixed streamline (201).

4. The PCB support screw locking assembly apparatus of claim 3, wherein: A blocking cylinder (203) is fixedly connected to the middle of the side wall of the movable streamline (202) facing the fixed streamline (201). A fixed pressure plate (205) is horizontally fixedly connected to the top of the outer side of the fixed streamline (201). A floating pressure plate (206) is horizontally fixedly connected to the top of the outer side of the movable streamline (202). A lifting mechanism (204) is provided between the bottom of the fixed pressure plate (205) and the floating pressure plate (206). A positioning plate (207) is detachably provided between the top of the fixed pressure plate (205) and the floating pressure plate (206). Several positioning grooves (208) are opened on the top of the positioning plate (207).

5. The PCB support screw locking assembly apparatus of claim 1, wherein: The assembly mechanism (6) includes a connecting column (601), a connecting cylinder (602) is detachably provided on the outside of the connecting column (601), an assembly frame (603) is fixedly connected to the bottom of the side wall of the connecting cylinder (602), a vacuum suction cup (604) is provided at the bottom of the assembly frame (603), a plurality of suction nozzles (605) are provided at the bottom of the vacuum suction cup (604), and a plurality of springs are connected between the vacuum suction cup (604) and the assembly frame (603).

6. The PCB support screw locking assembly apparatus of claim 4, wherein: A barcode scanning mechanism (10) is provided on the bottom side of the lifting mechanism (204) away from the blocking cylinder (203), and a visual positioning mechanism (11) is provided on the bottom side of the lifting mechanism (204) facing the blocking cylinder (203).

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