Pressing device for printed circuit board processing

Abstract

The utility model discloses a pressing device for printed circuit board processing, and belongs to the technical field of circuit board processing. The device mainly comprises a workbench, a panel is placed on the workbench, and a first groove is formed in the placing panel; the pressing assembly is provided with a pressing plate for pressing the circuit board; the clamping assembly is provided with two groups of sliding seats for clamping, adjusting and clamping the circuit board, a concave frame is mounted on the two groups of sliding seats, a second spring is arranged at the bottom end of the inner wall of the concave frame, a concave rod is mounted on the second spring, a guide rod is mounted on the concave rod, and two groups of friction units are mounted on the guide rod in a sliding manner; the friction unit comprises a sliding block which is slidably connected to the guide rod in a sleeving mode, a fixing disc is installed on the sliding block, a first screw rod is in threaded connection with the fixing disc, and an anti-skid pad is installed at one end of the first screw rod. According to the press-fit device for printed circuit board processing, the press-fit device can adapt to circuit boards of different shapes and different sizes through the slidable sliding blocks, the position-adjustable clamping rings, the clamping plates and the like.

Description

Technical Field

[0001] This application relates to the field of printed circuit board processing technology, specifically to a pressing device for printed circuit board processing. Background Technology

[0002] In the field of modern electronic equipment manufacturing, printed circuit boards (PCBs) serve as the key carrier for the electrical connection of electronic components, and their quality and performance directly affect the stability and reliability of electronic products. The lamination process plays an extremely important role in the PCB production process and is one of the core links that determines the final quality of the circuit board.

[0003] For example, the patent with publication number CN210641153U discloses a pressing device for printing circuit board processing, which includes a base, a support chamber, a support plate, a cylinder, a pressing table, a return spring, a placement plate, a first telescopic rod, a movable block, and a metal plate, so that the two clamping plates hold the circuit board to be pressed, and with the support of the placement plate, the circuit board is precisely fixed.

[0004] In terms of shape, in addition to the common rectangular shape, printed circuit boards (PCBs) also come in circular and irregular shapes. The aforementioned patented pressing device uses clamps with fixed dimensions and structures. These fixed clamps are difficult to adapt to the curved contours of circular PCBs, making it impossible to achieve uniform and stable clamping. Furthermore, when dealing with PCBs of varying sizes, excessively small PCBs are difficult to hold effectively between the clamps, easily shifting during pressing and compromising accuracy. Conversely, for excessively large PCBs, the clamps cannot provide sufficient clamping range, limiting the device's versatility. Therefore, it is necessary to provide a pressing device for printed circuit board processing to solve these problems.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0006] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a pressing device for printed circuit board processing. This addresses the issue that, in terms of shape, circuit boards, besides the common rectangular shape, also include circular and irregular shapes. The aforementioned patented pressing device uses clamps with fixed sizes and structures, which are difficult to adapt to the curved contours of circular circuit boards, making it impossible to achieve uniform and stable clamping. Furthermore, when dealing with circuit boards of varying sizes, excessively small circuit boards are difficult to fix effectively between the clamps, and are prone to displacement during pressing, failing to ensure pressing accuracy. For excessively large circuit boards, the clamps cannot provide sufficient clamping range.

[0007] The technical solution adopted by this application to solve its technical problem is: a pressing device for printed circuit board processing, including a worktable on which a panel is placed, and a first groove is formed on the panel; a pressing assembly mounted on the panel, the pressing assembly having a pressing plate for pressing the circuit board; and a clamping assembly mounted in the first groove, the clamping assembly having two sets of sliding seats for clamping and adjusting the circuit board, concave frames mounted on the two sets of sliding seats, the concave frames being open, a second spring being provided at the bottom of the inner wall of the concave frame, a concave rod being mounted on the second spring, and a guide rod being mounted on the concave rod, the guide rod sliding on the guide rod. Two sets of friction units are installed; each friction unit includes a slider slidably sleeved on a guide rod, the top of the inner wall of the slider being a certain distance from the guide rod, a fixed plate being installed on the slider, a first screw being threadedly connected to the fixed plate, one end of the first screw movably passing through the slider, and an anti-slip pad being installed at one end of the first screw; the friction unit located on the left is defined as the first friction unit, and the friction unit located on the right is defined as the second friction unit, the slider on the second friction unit is positioned as a sliding plate, a clamping plate is installed on the sliding plate on the second friction unit, and a second screw is installed on the slider on the first friction unit, with a clamping ring threadedly connected to the second screw.

[0008] Furthermore, a side plate is installed on the side of the concave rod, and two sets of second grooves are opened on the placement panel. Two sets of guide rails are installed in the second grooves. A slide block is slidably installed on the guide rail, and a third spring is installed on the slide block. A vertical rod is movably passed through the slide block. The vertical rod is located at the center position of the third spring. One end of the vertical rod and one end of the third spring are connected to the bottom surface of the side plate.

[0009] Furthermore, the guide rail is provided with a long groove that matches the diameter of the vertical rod.

[0010] Furthermore, the anti-slip mat is made of a material with a high coefficient of friction.

[0011] Furthermore, the clamping assembly includes a motor installed at one end of the inner wall of the first groove. Two sets of trapezoidal plates are installed in the first groove, and a lead screw is mounted between the two sets of trapezoidal plates via a bearing. The output end of the motor passes through one set of trapezoidal plates and is connected to the lead screw. Two sets of spiral grooves with opposite directions are opened on the lead screw, and two sets of sliding seats are threadedly connected to the spiral grooves.

[0012] Furthermore, a protective pad is provided in the contact area between the clamping plate and the rectangular printed circuit board. The protective pad is made of flexible material, and a flexible pad is provided in the contact area between the clamping ring and the circular printed circuit board.

[0013] The beneficial effects of this application are as follows: The pressing device for printed circuit board processing provided by this application can adapt to circuit boards of different shapes and sizes through various adjustable structures, such as sliding sliders, adjustable clamping rings and clamping plates, greatly improving the versatility of the device. In addition, a side plate is provided on the side of the concave rod, which is connected to the slide on the guide rail through a vertical rod and a third spring, and the third spring provides auxiliary support for the concave rod.

[0014] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0016] In the attached diagram:

[0017] Figure 1 This is an overall schematic diagram of the laminating device for printed circuit board processing in this application;

[0018] Figure 2 for Figure 1 A schematic diagram of the pressing component structure in the middle;

[0019] Figure 3 for Figure 2 A schematic diagram of a partial structure;

[0020] Figure 4 for Figure 3 Enlarged view of point A;

[0021] The following are the labeling elements in the figure:

[0022] 1. Working component; 11. Worktable; 12. Placement panel; 13. First groove; 14. Second groove; 2. Pressing component; 21. Support frame; 22. Cylinder; 23. Column; 24. Top plate; 25. Pressing plate; 26. Placement plate; 27. Support rod; 28. First spring; 3. Clamping component; 31. Motor; 32. Trapezoidal plate; 33. Lead screw; 34. Sliding seat; 35. Guide rod 36. Concave frame; 37. Second spring; 38. Concave rod; 39. Guide rod; 312. Slider; 313. Fixed plate; 314. First screw; 315. Anti-slip pad; 316. Second screw; 317. Clamping ring; 318. Flexible pad; 319. Clamping plate; 320. Guide rail; 321. Side plate; 322. Vertical rod; 323. Third spring; 324. Slide seat; 325. Long groove. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0025] like Figures 1-4 As shown, this application provides a pressing device for printed circuit board processing, including a working component 1. The working component 1 includes a worktable 11, and a placement panel 12 is fixedly installed on the worktable 11. A pressing component 2 is installed on the placement panel 12. The pressing component 2 includes a support frame 21 fixedly installed on the placement panel 12, and a cylinder 22 is fixedly installed on the support frame 21 near the placement panel 12.

[0026] Meanwhile, four sets of pillars 23 are fixedly installed on the support frame 21, and the telescopic end of the cylinder 22 is connected to one end of the four sets of pillars 23 and passes through the top plate 24. A pressing plate 25 is fixedly installed on the telescopic end of the cylinder 22. The pressing plate 25 is adapted to move with the telescopic end of the cylinder 22 to get closer to or away from the placement panel 12.

[0027] Four sets of first springs 28 are fixedly installed on the placement panel 12. A support rod 27 passes through the center of the first spring 28. The support rod 27 movably passes through the placement panel 12 and has an anti-detachment part (not shown in the figure) at one end. One end of the first spring 28 is connected to the anti-detachment part. A placement plate 26 is connected to one end of the four sets of support rods 27. The placement plate 26 is used to place the circuit board, and the first spring 28 is suitable for supporting the placement plate 26.

[0028] Furthermore, a first groove 13 is provided on the placement panel 12, and a clamping assembly 3 is installed in the first groove 13. The clamping assembly 3 includes a motor 31 fixedly installed on one end of the inner wall of the first groove 13, and two sets of trapezoidal plates 32 fixedly installed in the first groove 13. A lead screw 33 is mounted between the two sets of trapezoidal plates 32 and the output end of the motor 31 passes through a set of trapezoidal plates 32 and is connected to the lead screw 33. The lead screw 33 is adapted to rotate with the output end of the motor 31.

[0029] Furthermore, two sets of spiral grooves with opposite directions of rotation (not shown in the figure) are provided on the lead screw 33, and two sets of sliding seats 34 are threadedly connected to the spiral grooves. The two sets of sliding seats 34 are respectively located on both sides of the placement plate 26, and two sets of guide rods 35 are fixedly installed between the two sets of trapezoidal plates 32. The sliding seat 34 is movably sleeved on the guide rod 35, and the sliding seat 34 is adapted to move linearly on the two sets of guide rods 35 as the lead screw 33 rotates.

[0030] A concave frame 36 is fixedly installed on the side of each of the two sets of sliding seats 34 that are close to each other. The concave frame 36 is open and a second spring 37 is provided at the bottom of the inner wall of the concave frame 36. A concave rod 38 is fixedly installed on the second spring 37. A guide rod 39 is fixedly installed on the concave rod 38. Two sets of friction units are slidably installed on the guide rod 39. The friction unit includes a slider 312 that is slidably sleeved on the guide rod 39. The top of the inner wall of the slider 312 is a certain distance from the guide rod 39. A fixed plate 313 is fixedly installed on the slider 312. A first screw 314 is threadedly connected to the fixed plate 313. One end of the first screw 314 moves through the slider 312. An anti-slip pad 315 is fixedly installed at one end of the first screw 314.

[0031] The first screw 314 is adapted to rotate so as to push the anti-slip pad 315 into contact with the surface of the guide rod 39. Thus, when the position of the friction unit needs to be adjusted, the slider 312 is moved to the designated position, and then the first screw 314 is rotated to move the anti-slip pad 315 closer to and press against the guide rod 39. The anti-slip pad 315 is made of a material with a high coefficient of friction. When it comes into close contact with and presses against the surface of the guide rod 39, the frictional force between them increases rapidly. This increased frictional force is sufficient to overcome the resistance of the slider 312 sliding on the guide rod 39, thereby firmly fixing the slider 312 in the current position.

[0032] It should be noted that the friction unit located on the left is defined as the first friction unit, and the friction unit located on the right is defined as the second friction unit (see reference). Figure 3 The slider 312 on the second friction unit is positioned as a sliding plate, and a clamping plate 319 is fixedly installed on the sliding plate on the second friction unit. A protective pad is provided in the contact area between the clamping plate 319 and the rectangular printed circuit board. The protective pad is made of flexible material to avoid direct contact with the rectangular printed circuit board and cause damage. The clamping plate 319 is suitable for clamping the rectangular printed circuit board. At the same time, a second screw 316 is fixedly installed on the slider 312 on the first friction unit, and a clamping ring 317 is threaded onto the second screw 316. The clamping ring 317 is suitable for clamping the circular printed circuit board, and a flexible pad 318 is provided in the contact area between the clamping ring 317 and the circular printed circuit board to avoid damaging the circular printed circuit board.

[0033] To provide stable support for the concave rod 38, a side plate 321 is fixedly installed on the side of the concave rod 38, and two sets of second grooves 14 are provided on the placement panel 12. Two sets of guide rails 320 are fixedly installed in the second grooves 14, and a slide block 324 is slidably installed on the guide rails 320. A third spring 323 is fixedly installed on the slide block 324, and a vertical rod 322 is movably inserted through the slide block 324. The vertical rod 322 is located at the center of the third spring 323, and one end of the vertical rod 322 and the third spring 323 are connected to the bottom surface of the side plate 321. The third spring 323 is used to provide auxiliary support for the concave rod 38.

[0034] Meanwhile, a long groove 325 adapted to the diameter of the vertical rod 322 is provided on the guide rail 320. The long groove 325 is used to provide moving space for the vertical rod 322.

[0035] In summary: First, the circuit board to be pressed is placed on the placement plate 26. The placement plate 26 is supported by four sets of first springs 28 and support rods 27. The first springs 28 provide buffering and elastic support to ensure that the circuit board is placed stably and can adapt to certain pressure changes during the subsequent pressing process.

[0036] For a rectangular printed circuit board, start the motor 31 in the clamping assembly 3. The output end of the motor 31 drives the lead screw 33 to rotate. Since the lead screw 33 has two sets of spiral grooves with opposite directions, the two sets of sliding seats 34 that are threaded to the spiral grooves will move in a straight line along the two sets of guide rods 35 in opposite directions.

[0037] When the sliding seat 34 moves, the concave frame 36 fixed on it moves accordingly. The operator adjusts the position of the sliders 312 on the first and second friction units to fit the width of the rectangular circuit board. Specifically, after sliding the slider 312 to the appropriate position, the first screw 314 is rotated, pushing the anti-slip pad 315 to press against the guide rod 39, using the increased friction to fix the slider 312. At this time, the clamping plate 319 on the second friction unit approaches the rectangular circuit board. Because the contact area between the clamping plate 319 and the circuit board is equipped with a flexible protective pad, damage to the circuit board is avoided, achieving stable clamping of the rectangular circuit board.

[0038] For circular printed circuit boards, motor 31 is activated to rotate lead screw 33, which in turn moves sliding seat 34 and concave frame 36. The diameter of the circular circuit board is adapted by adjusting the position of slider 312 on the first and second friction units. On the first friction unit, a clamping ring 317 is threadedly connected to a second screw 316 fixedly mounted on slider 312. Rotating the second screw 316 adjusts the position of clamping ring 317, bringing it closer to the circular circuit board. At the same time, a flexible pad 318 is provided in the contact area between clamping ring 317 and the circular circuit board to prevent damage to the circuit board, thereby achieving a stable clamping of the circular circuit board.

[0039] After the circuit board is clamped, the cylinder 22 in the pressing assembly 2 is activated. The telescopic end of the cylinder 22 pushes the pressing plate 25 downward, closer to the circuit board on the placement panel 12. During the pressing process, the first spring 28 under the placement plate 26 acts as a buffer to prevent excessive pressure during pressing from damaging the circuit board. At the same time, the side plate 321 fixed to the side of the concave rod 38 and the slide 324 in the second groove 14 are connected by the vertical rod 322 and the third spring 323. The third spring 323 provides auxiliary support for the concave rod 38, enhancing the stability of the clamping structure during the pressing process. The vertical rod 322 can move within the long groove 325 on the guide rail 320, providing space for the small displacement of the concave rod 38 during the pressing process.

[0040] After pressing is completed, the telescopic end of cylinder 22 retracts, causing pressing plate 25 to move upward and away from the circuit board. At this time, the elastic force of the first spring 28, the second spring 37 and the third spring 323 causes the placement plate 26, concave rod 38 and other structures to return to their initial positions, facilitating the next placement and pressing operation of the circuit board.

[0041] This device, through various adjustable structures such as a sliding slider 312, an adjustable clamping ring 317, and a clamping plate 319, can adapt to circuit boards of different shapes (rectangular, circular, etc.) and sizes, greatly improving the device's versatility. Furthermore, a side plate 321 is provided on the side of the concave rod 38, which is connected to the slide block 324 on the guide rail 320 via a vertical rod 322 and a third spring 323. The third spring 323 provides auxiliary support to the concave rod 38, enhancing the stability of the entire clamping structure during the pressing process and ensuring good working condition when pressing different circuit boards.

[0042] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A pressing device for printed circuit board processing, characterized in that: Include: Workbench (11), the workbench (11) on which the panel (12) is placed, the first groove (13) is opened on the placing panel (12); Pressing assembly (2), the pressing assembly (2) is installed on the placing panel (12), and the pressing assembly (2) has a pressing plate (25) for pressing the circuit board; Clamping assembly (3), the clamping assembly (3) is installed in the first groove (13), the clamping assembly (3) has two groups of sliding seats (34) for clamping and adjusting the clamping of the circuit board, two groups of the sliding seats (34) are installed with concave frame (36), the concave frame (36) is provided with opening, the inner wall bottom end of the concave frame (36) is provided with second spring (37), the second spring (37) is installed with concave rod (38), the concave rod (38) is installed with guide rod (39), two groups of friction units are slidably installed on the guide rod (39); The friction unit includes a sliding sleeve on the guide rod (39), the inner wall top end of the sliding block (312) has a certain distance between the guide rods (39), the sliding block (312) is installed with a fixed disc (313), the fixed disc (313) is threadedly connected with a first screw rod (314), one end of the first screw rod (314) is movably penetrated into the sliding block (312), and the other end of the first screw rod (314) is installed with a non-slip pad (315); The friction unit located on the left side is defined as the first friction unit, the friction unit located on the right side is defined as the second friction unit, the sliding block (312) on the second friction unit is positioned as a sliding plate, the sliding plate on the second friction unit is installed with a clamping plate (319), the sliding block (312) on the first friction unit is installed with a second screw rod (316), and the second screw rod (316) is threadedly connected with a clamping ring (317).

2. The press bonding apparatus for processing a printed wiring board according to claim 1, characterized by: The side plate (321) is installed on the side of the concave rod (38), two groups of second grooves (14) are opened on the placing panel (12), two groups of guide rails (320) are installed in the second grooves (14), the sliding seat (324) is slidably installed on the guide rail (320), the third spring (323) is installed on the sliding seat (324), the vertical rod (322) is movably penetrated into the sliding seat (324), the vertical rod (322) is located at the center position of the third spring (323), and one end of the vertical rod (322) and the third spring (323) is connected with the bottom surface of the side plate (321).

3. The press bonding apparatus for processing a printed wiring board according to claim 2, characterized by: The guide rail (320) is provided with a long groove (325) matched with the diameter of the vertical rod (322).

4. The press bonding apparatus for processing a printed wiring board according to claim 3, characterized by: The clamping assembly (3) comprises a motor (31) installed on one end of the inner wall of the first groove (13), two sets of trapezoidal plates (32) are installed in the first groove (13), a lead screw (33) is bearingly installed between the two sets of trapezoidal plates (32), the output end of the motor (31) penetrates through one set of the trapezoidal plates (32) and is connected with the lead screw (33), two sets of helical grooves with opposite rotation directions are formed in the lead screw (33), and two sets of sliding seats (34) are threadedly connected on the helical grooves.

5. The press bonding apparatus for processing a printed wiring board according to claim 1, characterized by: The contact area of the clamping plate (319) with the rectangular printed circuit board is provided with a protective pad, the protective pad is made of flexible material, and the contact area of the clamping ring (317) with the circular printed circuit board is provided with a flexible pad (318).

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