PCB board locking screw device

Abstract

The utility model discloses a PCB board lock pays screw device, including frame, setting belt streamline on frame along Y axle direction, set up in the frame buffer mechanism. Still include setting up in the frame pressure equipment mechanism and take material lock screw mechanism of loading, the pressure equipment mechanism includes base, the loading seat of sliding setting on the base, sets up the cover plate subassembly on the base, sets up the drive subassembly of loading seat sliding on the base and sets up pressure sensor for inductive cover plate subassembly pressure on the loading seat, the take material lock screw mechanism includes setting up X axle drive module on the frame, setting up take material module and lock screw module on X axle drive module. Advantage: can through pressure sensor real -time monitoring cover plate subassembly to the pressure value of product, ensure that the pressure that product suffers does not cause the product to over extrusion, after the board material pressure tight board material end face steady, ensure lock precision, and take material lock screw mechanism can realize the transfer of product and lock screw.

Description

Technical Field

[0001] This utility model relates to the field of PCBA, specifically a PCB board fastening screw device. Background Technology

[0002] Currently, when fastening screws on PCBAs, the method used is to manually place the product in a fixture and use a downward-pressing elbow clamp to complete the assembly. The product is primarily fastened manually using an electric screwdriver. This is fine for routine projects, but it's particularly problematic when dealing with fragile electronic products where the pressure needs to be within a specific range. If the elbow clamp is used manually, this pressure is very difficult to control, easily leading to damage to the board. Alternatively, a centering clamping method is used to clamp the board. This clamping method causes the board to vibrate during screw fastening, resulting in instability on the board's end face and reduced fastening effectiveness. For example, Chinese patent CN210209339U discloses a three-axis module PCB screw-locking machine, which includes a machine base, a carrier platform, a width adjustment device, and a three-axis module. A fixed platform plate is horizontally provided on the upper surface of the machine base, and the carrier platform is fixedly installed in the middle of the platform plate. The width adjustment device includes a mounting base, a width adjustment screw, a motor, and a clamping plate. A screw feeder is provided on the platform plate outside the front clamping plate. The three-axis module includes a support plate, a guide rail, a slider, an X-axis screw, a Y-axis screw, and a tightening device. The tightening device includes a mounting frame, a pressing cylinder, an intelligent screwdriver, and a non-magnetic high-precision suction nozzle. The three-axis module PCB screw-locking machine mentioned above uses a clamping plate to clamp the board material. This method makes the board material prone to vibration when screwing, causing the end face to shake and reducing the screw-locking effect.

[0003] Therefore, it is necessary to provide a PCB board fastening screw device. Utility Model Content

[0004] This utility model provides a PCB board fastening screw device, which effectively solves the problem of excessive pressure on the product or vibration of the board material during the assembly of the PCBA assembly device.

[0005] The technical solution adopted in this utility model is:

[0006] A PCB board screw fastening device includes a frame, a belt conveyor mounted on the frame along the Y-axis, and a buffer mechanism mounted on the frame; it also includes a loading mechanism and a screw-fastening mechanism mounted on the frame. The loading mechanism includes a base, a carrier slidably mounted on the base, a cover plate assembly mounted on the base, a drive assembly mounted on the base to drive the carrier to slide, and a pressure sensor mounted on the carrier to sense the pressure of the cover plate assembly. The screw-fastening mechanism includes an X-axis drive module mounted on the frame, a screw-fastening module mounted on the X-axis drive module, and a screw-fastening module.

[0007] Furthermore, the cover plate assembly includes two sets of linear guide rails vertically arranged on both sides of the base, two lifting plates slidably arranged on the two sets of linear guide rails, a cover plate connected to both ends of the lifting plates, and a sliding cylinder on the base for driving the lifting plates to move up and down.

[0008] Furthermore, the X-axis drive module includes an X-axis module mounted on the frame along two X-axis directions, and a profile whose two ends are respectively connected to the output ends of the two X-axis modules. The material picking module and the screw locking module are mounted on the profile.

[0009] Furthermore, the material handling module includes a mounting plate fixedly mounted on the profile, a clamping assembly and a material suction assembly mounted on the mounting plate. The clamping assembly includes a second linear guide rail vertically mounted on the mounting plate, a lifting frame slidably mounted on the second linear guide rail, a second Z-axis module A mounted on the mounting plate for driving the lifting frame to move up and down, a second Z-axis module B vertically mounted on the second lifting frame, a second connecting frame mounted at the output end of the second Z-axis module B, and a second gripper mounted on the second connecting frame.

[0010] Furthermore, the suction assembly includes a No. 3 Z-axis module mounted on the mounting plate, a No. 3 connecting frame mounted on the output end of the No. 3 Z-axis module, a rotating platform mounted on the No. 3 connecting frame, a No. 3 plate A mounted on the rotating platform, several No. 3 linear bearings mounted on the No. 3 plate A, several guide pillars respectively sleeved on the No. 3 linear bearings, a limiting plate mounted on the upper end face of the guide pillars, a No. 3 plate B fixedly connected to the lower end of the several guide pillars, springs at both ends abutting against the No. 3 plate A and the No. 3 plate B respectively, and several suction cups mounted on the lower end face of the No. 3 plate B.

[0011] Furthermore, the screw-locking module includes a No. 4 mounting plate mounted on the profile, a No. 4 Z-axis module mounted vertically on the No. 4 mounting plate, a No. 4 lifting plate mounted at the output end of the No. 4 Z-axis module, a No. 1 CCD camera and a No. 2 CCD camera mounted on the No. 4 lifting plate, and a screw-locking gun mounted between the No. 1 CCD camera and the No. 2 CCD camera.

[0012] Furthermore, the cache mechanism includes a support mounted on the rack and several fixtures mounted on the support.

[0013] The beneficial effects of the utility model are: it can monitor the pressure value of the cover plate assembly on the product in real time through the pressure sensor, ensuring that the pressure on the product will not cause excessive squeezing, and the end face of the plate is stable after the plate is pressed, ensuring the locking accuracy. The material picking and screw locking mechanism can realize the transfer of the product and the screw locking. Attached Figure Description

[0014] Figure 1This is an overall schematic diagram of the PCB board fastening screw device provided in the embodiments of this application.

[0015] Figure 2 This is a schematic diagram of the loading mechanism of the PCB board fastening screw device provided in the embodiments of this application.

[0016] Figure 3 This is a schematic diagram of the screw-picking and screw-locking mechanism of the PCB board screw-locking device provided in the embodiments of this application.

[0017] Figure 4 This is a schematic diagram of the material handling module of the PCB board screw fastening device provided in the embodiments of this application.

[0018] Figure 5 This is a schematic diagram of a screw-locking module of a PCB board screw-locking device provided in an embodiment of this application.

[0019] Figure 6 This is a schematic diagram of the clamping assembly of the PCB board fastening screw device provided in an embodiment of this application.

[0020] Figure 7 This is a schematic diagram of the material suction assembly of the PCB board fastening screw device provided in the embodiments of this application.

[0021] Figure 8 This is a schematic diagram of the suction assembly of the PCB board fastening screw device provided in the embodiments of this application after omitting the No. 3 Z-axis module.

[0022] The components in the diagram are labeled as follows: 1. Frame; 2. Belt conveyor; 3. Buffer mechanism; 4. Loading mechanism; 5. Material handling and screw-locking mechanism; 41. Base; 42. Carrier; 43. Cover plate assembly; 44. Drive assembly; 45. Pressure sensor; 51. X-axis drive module; 52. Material handling module; 53. Screw-locking module; 432. Lifting plate; 433. Cover plate; 431. No. 1 slide cylinder; 511. X-axis module; 512. Profile; 521. Mounting plate; 522. Clamping assembly; 523. Material suction assembly; 5221. No. 2 linear guide rail; 5222. Lifting frame; 5223. Z-axis module A (2nd axis); 5224, Z-axis module A (2nd axis); 5225, Connecting frame A (2nd axis); 5226, Gripper A (2nd axis); 5231, Z-axis module B (3rd axis); 5232, Connecting frame B (3rd axis); 5233, Rotary platform; 5234, Plate A (3rd axis); 5235, Linear bearing A (3rd axis); 5236, Guide post; 5237, Limiting plate; 5238, Plate B (3rd axis); 5239, Suction cup; 5230, Spring; 531, Mounting plate B (4th axis); 532, Z-axis module B (4th axis); 533, Lifting plate B (4th axis); 534, CCD camera A (1st axis); 535, CCD camera B (2nd axis); 536, Screwdriver. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] like Figure 1 As shown, the PCB board screw fastening device provided in the embodiments of this application includes a frame 1, a belt conveyor 2 arranged along the Y-axis on the frame 1, a buffer mechanism 3 arranged on the frame 1, a pressing and loading mechanism 4 arranged on the frame 1, and a screw fastening mechanism 5. Figure 2 As shown, the pressurized loading mechanism 4 includes a base 41, a carrier 42 slidably mounted on the base 41, a cover plate assembly 43 mounted on the base 41, a drive assembly 44 mounted on the base 41 for driving the carrier 42 to slide, and a pressure sensor 45 mounted on the carrier 42 for sensing the pressure of the cover plate assembly 43; Figure 3 As shown, the material picking and screw locking mechanism 5 includes an X-axis drive module 51 mounted on the frame 1, a material picking module 52 mounted on the X-axis drive module 51, and a screw locking module 53.

[0025] It should be noted that the carrier 42 is provided with slot 1 and slot 2 for placing product A and product B respectively. The subsequent transfer of product A to carrier 42 refers to its transfer to slot 1, and the transfer of product B to carrier 42 refers to its transfer to slot 2. Both product A and product B are PCB boards pre-installed with screws.

[0026] In actual use, product B is conveyed via belt conveyor 2, and product A is placed via buffer mechanism 3. Then, the X-axis drive module 51 drives the picking module 52 to move into buffer mechanism 3 to transfer product A from buffer mechanism 3 to carrier 42. Then, the picking module 52 is driven to move onto belt conveyor 2 to transfer product B to carrier 42. Then, the drive assembly 44 drives carrier 42 to slide under cover assembly 43. Subsequently, cover assembly 43 presses product A and product B on carrier 42. During the pressing process, pressure sensor 45 senses the pressure of cover assembly 43. When the pressure sensed by pressure sensor 45 reaches a preset value, X-axis drive module 51 drives screw-locking mechanism to tighten screws on product A and product B respectively.

[0027] In the above design, the pressure value of the cover plate assembly 43 on the product can be monitored in real time by the pressure sensor 45 to ensure that the pressure on the product will not cause excessive squeezing. After the plate is pressed, the end face of the plate is stable to ensure the locking accuracy. The material picking and screw locking mechanism 5 can realize the transfer of the product and the screw locking.

[0028] Specifically: such as Figure 2As shown, the cover plate assembly 43 includes two sets of linear guide rails (not shown) vertically arranged on both sides of the base 41, two lifting plates 432 respectively slidably arranged on the two sets of linear guide rails, a cover plate 433 connected to both ends of the lifting plates 432, and a sliding cylinder 431 arranged on the base 41 for driving the lifting plates 432 to rise and fall. The cover plate 433 is provided with a clearance hole for the locking screw module 53 to be positioned away.

[0029] In actual use, after the carrier 42 moves to below the cover plate 433 under the drive of the drive assembly 44, the first slide cylinder 431 drives the lifting plate 432 to move the cover plate 433 downward, so that the cover plate 433 presses the product on the carrier 42 assembly. After the product is screwed on, the first slide cylinder 431 drives the lifting plate 432 to move the cover plate 433 upward and detach it from the product.

[0030] In the above design, the structural design and specific implementation of the cover plate assembly 43 can achieve the pressing of the product, and the pressing process can be guided by the first linear guide rail to ensure the direction of pressure.

[0031] Specifically: such as Figure 3 As shown, the X-axis drive module 51 includes an X-axis module 511 arranged on the frame 1 along the two X-axis directions, and a profile 512 whose two ends are respectively connected to the output ends of the two X-axis modules 511. The material picking module 52 and the screw locking module 53 are arranged on the profile 512.

[0032] In actual use, the two X-axis modules 511 move synchronously, which drives the profile 512 to move synchronously. The movement of the profile 512 drives the material picking module 52 and the screw fastening module 53 to move, so that the material picking module 52 and the screw fastening module 53 can move to the corresponding positions.

[0033] In the above design, the X-axis drive module 51 uses two X-axis modules 511 to ensure the smooth movement of the profile 512 and to ensure power.

[0034] Specifically: such as Figure 4 As shown, the material handling module 52 includes a mounting plate 521 fixedly mounted on the profile 512, a clamping assembly 522 mounted on the mounting plate 521, and a material suction assembly 523. Figure 6As shown, the clamping assembly 522 includes a second linear guide rail 5221 vertically mounted on the mounting plate 521, a lifting frame 5222 slidably mounted on the second linear guide rail 5221, a second Z-axis module 5224A5223 mounted on the mounting plate 521 for driving the lifting frame 5222 to rise and fall, a second Z-axis module 5224B vertically mounted on the second lifting frame 5222, a second connecting frame 5225 mounted at the output end of the second Z-axis module 5224B, and a second gripper 5226 mounted on the second connecting frame 5225.

[0035] In actual use, when product A needs to be transferred on the buffer mechanism 3: the X-axis drive module 51 drives the clamping component 522 of the picking module 52 to move above the buffer mechanism 3. At this time, the second gripper 5226A corresponds to product A. Then, the second Z-axis module 5224A5223 drives the lifting frame 5222 to descend. Then, the second Z-axis module 5224B drives the second connecting frame 5225 to move down, so that the second gripper 5226A can clamp product A. Then, the lifting frame 5222 is reset under the drive of the second Z-axis module 5224A5223, and the second connecting frame 5225 is reset under the drive of the second Z-axis module 5224B. Then, the X-axis drive module 51 drives the clamping assembly 522 to move above the carrier 42. Subsequently, the second Z-axis module 5224A5223 drives the lifting frame 5222 to descend, and the second Z-axis module 5224B drives the second connecting frame 5225 to move down, so that the second gripper 5226A places the product on the carrier 42.

[0036] In the above design, the structural design and specific implementation of the material handling module 52 can effectively realize the transfer of product A.

[0037] Specifically: such as Figure 7 and Figure 8 As shown, the suction assembly 523 includes a third Z-axis module 5231 mounted on a mounting plate 521, a third connecting frame 5232 mounted on the output end of the third Z-axis module 5231, a rotating platform 5233 mounted on the third connecting frame 5232, a third plate A 5234 mounted on the rotating platform 5233, several third linear bearings 5235 mounted on the third plate A 5234, several guide posts 5236 respectively sleeved on the third linear bearings 5235, a limiting plate 5237 mounted on the upper end face of the guide post 5236, a third plate B 5238 fixedly connected to the lower end of the several guide posts 5236, springs 5230 whose two ends abut against the third plate A 5234 and the third plate B 5238 respectively, and several suction cups 5239 mounted on the lower end face of the third plate B 5238.

[0038] In actual use, when product B needs to be transferred: the rotary platform 5233 drives the No. 3 plate to rotate, which in turn drives the No. 3 linear bearing 5235, guide post 5236, limit plate 5237, spring 5230, No. 3 plate B 5238 and suction cup 5239 to rotate synchronously, so that each suction cup 5239 rotates to a position where it can pick up the material. Then, the X-axis drive module 51 drives the suction assembly 523 to the top of the belt flow line 2. Subsequently, the No. 3 Z-axis module 5231 drives the No. 3 connecting frame 5232 to move down until the suction cup 5239 contacts the product. After that, the No. 3 Z-axis module 5231 continues to drive, so that the guide post 5236 moves up and the spring 5230 is compressed to achieve buffering, until the suction cup 5239 picks up product B. Then, the X-axis drive module 51 drives it to the top of the carrier 42, and then the third Z-axis module 5231 drives the third connecting frame 5232 to move down, so that after the product B is placed on the carrier 42, the suction cup 5239 closes the vacuum and detaches from the product B.

[0039] In the above design, the structural design and specific implementation of the suction component 523 enable the movement of product B, and the spring 5230 can reduce the impact between the suction cup 5239 and product B when adsorbing product B.

[0040] Specifically: such as Figure 5 As shown, the screw-locking module 53 includes a fourth mounting plate 531521 mounted on the profile 512, a fourth Z-axis module 532 vertically mounted on the fourth mounting plate 531521, a fourth lifting plate 533432 mounted at the output end of the fourth Z-axis module 532, a first CCD camera 534 and a second CCD camera 535 mounted on the fourth lifting plate 533432, and a screw-locking gun 536 positioned between the first CCD camera 534 and the second CCD camera 535.

[0041] In actual use, before screwing in product A, the screw holes of product A are photographed and positioned using CCD camera 534. Then, Z-axis module 532 drives lifting plate 533432 to move screw gun 536 downwards, and screws are tightened using screw gun 536. Before screwing in product B, the screw holes of product B are photographed and positioned using CCD camera 535. Then, Z-axis module 532 drives lifting plate 533432 to move screw gun 536 downwards, and screws are tightened using screw gun 536.

[0042] In the above design, the structural design and specific implementation of the screw-locking module 53 enable automatic screw fastening for products A and B.

[0043] Specifically, the cache mechanism 3 includes a support mounted on the frame 1 and several fixtures mounted on the support.

[0044] In actual use, product A is placed on the fixture.

[0045] In the above design, the structural design and specific implementation of the cache mechanism 3 enable the placement of product A.

[0046] In further detail, it should be understood that the above description is only a specific embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A PCB board fastening screw device, comprising a frame (1), a belt conveyor (2) disposed on the frame (1) along the Y-axis direction, and a buffer mechanism (3) disposed on the frame (1), characterized in that: It also includes a loading mechanism (4) and a screw-locking mechanism (5) mounted on the frame (1). The loading mechanism (4) includes a base (41), a carrier (42) slidably mounted on the base (41), a cover plate assembly (43) mounted on the base (41), a drive assembly (44) mounted on the base (41) to drive the carrier (42) to slide, and a pressure sensor (45) mounted on the carrier (42) to sense the pressure of the cover plate assembly (43). The screw-locking mechanism (5) includes an X-axis drive module (51) mounted on the frame (1), a screw-locking module (52) mounted on the X-axis drive module (51), and a screw-locking module (53).

2. The PCB board fastening screw device according to claim 1, characterized in that: The cover plate assembly (43) includes two sets of linear guide rails vertically arranged on both sides of the base (41), two lifting plates (432) slidably arranged on the two sets of linear guide rails, a cover plate (433) connected to both ends of the lifting plates (432), and a sliding cylinder (431) arranged on the base (41) for driving the lifting plates (432) to rise and fall.

3. The PCB board fastening screw device according to claim 1, characterized in that: The X-axis drive module (51) includes an X-axis module (511) arranged on the frame (1) along two X-axis directions, and a profile (512) with both ends connected to the output ends of the two X-axis modules (511). The material picking module (52) and the screw locking module (53) are arranged on the profile (512).

4. The PCB board fastening screw device according to claim 1, characterized in that: The material handling module (52) includes a mounting plate (521) fixedly mounted on the profile (512), a clamping assembly (522) mounted on the mounting plate (521), and a suction assembly (523). The clamping assembly (522) includes a second linear guide rail (5221) mounted vertically on the mounting plate (521), a lifting frame (5222) slidably mounted on the second linear guide rail (5221), a second Z-axis module (5224)A (5223) mounted on the mounting plate (521) for driving the lifting frame (5222) to rise and fall, a second Z-axis module (5224)B mounted vertically on the second lifting frame (5222), a second connecting frame (5225) mounted at the output end of the second Z-axis module (5224)B, and a second gripper (5226) mounted on the second connecting frame (5225).

5. The PCB board fastening screw device according to claim 4, characterized in that: The suction assembly (523) includes a third Z-axis module (5231) mounted on a mounting plate (521), a third connecting frame (5232) mounted on the output end of the third Z-axis module (5231), a rotating platform (5233) mounted on the third connecting frame (5232), a third plate A (5234) mounted on the rotating platform (5233), and several third linear bearings (5235) mounted on the third plate A (5234). ), several guide posts (5236) respectively fitted on the No. 3 linear bearing (5235), a limiting plate (5237) set on the upper end face of the guide post (5236), a No. 3 plate B (5238) fixedly connected to the lower end of several guide posts (5236), a spring (5230) with both ends abutting against the No. 3 plate A (5234) and the No. 3 plate B (5238) respectively, and several suction cups (5239) set on the lower end face of the No. 3 plate B (5238).

6. The PCB board fastening screw device according to claim 1, characterized in that: The screw-locking module (53) includes a fourth mounting plate (531)(521) mounted on the profile (512), a fourth Z-axis module (532) mounted vertically on the fourth mounting plate (531)(521), a fourth lifting plate (533)(432) mounted at the output end of the fourth Z-axis module (532), a first CCD camera (534) and a second CCD camera (535) mounted on the fourth lifting plate (533)(432), and a screw-locking gun (536) mounted between the first CCD camera (534) and the second CCD camera (535).

7. The PCB board fastening screw device according to claim 1, characterized in that: The buffer mechanism (3) includes a support mounted on the frame (1) and several fixtures mounted on the support.

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