Positioning device for circuit board pressing

Abstract

The utility model discloses a positioning device for circuit board pressing, which relates to the technical field of elevators and comprises a base, a U-shaped frame is fixedly arranged at the upper end of the base, a cylinder is fixedly arranged on the upper inner side wall of the U-shaped frame, a circular truncated cone is rotatably arranged in the cylinder, and a rotating rod is fixedly connected to the middle of the upper end face of the circular truncated cone. The upper end of the rotating rod rotationally penetrates through the upper side wall of the U-shaped frame through a first bearing and is fixedly connected with a first handle, a clamping mechanism capable of fixing the circular truncated cone is arranged on the cylinder, an air cylinder is connected to the middle of the lower side of the circular truncated cone, a transverse plate is fixedly arranged at the lower end of the air cylinder, and telescopic grooves are formed in the left side and the right side of the transverse plate correspondingly. The multi-layer circuit board pressing device has the advantages that the distance between the two strip-shaped pressing plates can be conveniently adjusted, so that multi-layer circuit boards of different sizes and specifications can be conveniently pressed, the application range is wider, and the multi-layer circuit board pressing device can be conveniently used by people.

Description

Technical Field

[0001] This utility model relates to the field of lifting machine technology, specifically a positioning device for circuit board pressing. Background Technology

[0002] Circuit boards can be broadly classified into three categories based on the number of layers: single-sided boards, double-sided boards, and multilayer boards. First, single-sided boards are the most basic type, where components are concentrated on one side and conductors on the other. Because the conductors only appear on one side, this type of board is called a single-sided board. Single-sided boards are generally simple to manufacture and inexpensive, but their disadvantage is that they cannot be used for overly complex products. Double-sided boards are an extension of single-sided boards. When single-layer wiring cannot meet the needs of electronic products, double-sided boards are used. Both sides have copper cladding and traces, and vias can be used to connect the lines between the two layers, forming the required network connection. Multilayer boards are printed circuit boards with three or more conductive pattern layers laminated with insulating materials in between, and the conductive patterns are interconnected as required. Multilayer boards are a product of the development of electronic information technology towards high speed, multi-functionality, large capacity, small size, thinness, and lightweight.

[0003] During the production of multilayer circuit boards, the layers need to be pressed together using a dedicated circuit board laminating machine. However, the size of the laminating structure on the laminating machine is generally fixed, which means that it can only press multilayer circuit boards of a single size, resulting in a limited range of applications and inconvenience for users. To address this, we propose a positioning device for circuit board lamination. Summary of the Invention

[0004] The purpose of this invention is to provide a positioning device for pressing circuit boards.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a positioning device for circuit board pressing, comprising a base, a U-shaped frame fixedly mounted on the upper end of the base, a cylinder fixedly mounted on the upper inner side wall of the U-shaped frame, a frustum rotatably mounted inside the cylinder, a rotating rod fixedly connected to the middle of the upper end face of the frustum, the upper end of the rotating rod rotatably passing through the upper side wall of the U-shaped frame via a first bearing and fixedly connected to a first handle, a locking mechanism for fixing the frustum is provided on the cylinder, a cylinder is connected to the middle of the lower side of the frustum, a horizontal plate is fixedly mounted on the lower end of the cylinder, telescopic grooves are provided on both the left and right sides of the horizontal plate, a shrinking plate is slidably mounted in each telescopic groove, a set of elastic telescopic rods is fixedly mounted on opposite ends of the lower sides of the two shrinking plates, a strip pressure plate is fixedly mounted on the lower end of each set of elastic telescopic rods, and an adjustment mechanism for driving the two shrinking plates to move relative to each other is provided in the horizontal plate.

[0006] As a further embodiment of this utility model: the adjustment mechanism includes a gear pair, a bidirectional threaded rod, and an adjustment rod. A cavity is formed in the center of the horizontal plate. The bidirectional threaded rod is horizontally arranged in the cavity. Both ends of the rod wall of the bidirectional threaded rod are rotatably passed through the left and right sides of the cavity via second bearings and extend into two telescopic grooves respectively. Threaded holes are formed at the opposite ends of the two contraction plates and are threadedly connected to the ends of the rod wall of the bidirectional threaded rod respectively. The adjustment rod is rotatably inserted into the front side of the horizontal plate via a third bearing, and the rear end of the adjustment rod extends into the cavity and is connected to the bidirectional threaded rod via a gear pair. A second handle is fixedly connected to the front end of the adjustment rod.

[0007] As a further embodiment of this utility model: the gear pair includes a first bevel gear and a second bevel gear, both of which are located in a cavity. The first bevel gear is fixedly connected to the rear end of the adjusting rod, and the second bevel gear is fixedly sleeved to the wall of the bidirectional threaded rod. The first bevel gear and the second bevel gear are meshed together.

[0008] As a further embodiment of this utility model, a rubber pad is fixedly provided on the lower side of each of the strip pressure plates.

[0009] As a further embodiment of this utility model: the snap-fit ​​mechanism includes a snap-fit ​​rod and a tension spring. A circular hole is provided on the right side wall of the cylinder, and the snap-fit ​​rod is slidably inserted into the circular hole. Two snap-fit ​​grooves are provided on the circumferential side wall of the frustum for the snap-fit ​​rod to slide into. The two snap-fit ​​grooves are vertically distributed. A pull ring is fixedly provided at the outer end of the snap-fit ​​rod. The tension spring is fixedly provided between the pull ring and the cylinder, and the tension spring is movably sleeved with the snap-fit ​​rod.

[0010] As a further embodiment of this utility model: two arc-shaped grooves are provided on the lower side of the cylinder, and a slider is slidably arranged in each of the two arc-shaped grooves. Both sliders are fixedly connected to the frustum, and the arc of each arc-shaped groove is 90 degrees.

[0011] Compared with the prior art, the beneficial effects of this utility model by adopting the above technical solution are as follows:

[0012] 1. In use, rotating the second handle drives the adjusting rod to rotate. The adjusting rod, through a gear pair, drives the bidirectional threaded rod to rotate. The rotation of the bidirectional threaded rod causes the two shrink plates to move in opposite directions, thereby adjusting the extension and retraction length of the two shrink plates. The two shrink plates, through two sets of elastic telescopic rods, drive the two strip pressure plates to move in opposite directions, thereby adjusting the distance between the two strip pressure plates. This facilitates the pressing of multilayer circuit boards of different specifications. After two opposite sides of the multilayer circuit board are pressed together, pulling the pull ring moves the locking rod, causing the locking rod to move out of the locking slot. Remove the handle, then rotate the first handle to drive the rotating rod to rotate. The rotating rod drives the cylinder and the horizontal plate to rotate through the truncated cone, causing the horizontal plate to rotate the two strip pressure plates 90 degrees. At this time, the locking rod will align with another slot on the truncated cone. Release the pull ring, and under the action of the tension spring, the locking rod will insert into this slot to fix the truncated cone. This allows the other two opposite sides of the multilayer circuit board to be pressed together. The above device makes it easy to adjust the distance between the two strip pressure plates, thus facilitating the pressing of multilayer circuit boards of different sizes and specifications. This makes the application range wider and easier for people to use.

[0013] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall front view in an embodiment of this utility model;

[0015] Figure 2 This is a top cross-sectional view of the horizontal plate in an embodiment of the present invention;

[0016] Figure 3 This is a front cross-sectional view of the cylinder and frustum in an embodiment of the present invention;

[0017] Figure 4 This is a schematic diagram of the bottom surface of the cylinder in an embodiment of this utility model.

[0018] In the diagram: 1. Base; 2. U-shaped frame; 3. Cylinder; 4. Frustum; 5. Rotating rod; 6. First handle; 7. Cylinder; 8. Horizontal plate; 9. Shrink plate; 10. Elastic telescopic rod; 11. Strip pressure plate; 12. Bidirectional threaded rod; 13. Adjusting rod; 14. Second handle; 15. First bevel gear; 16. Second bevel gear; 17. Rubber pad; 18. Clamping rod; 19. Tension spring; 20. Pull ring; 21. Slider. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand this utility model, but does not constitute a limitation on this utility model.

[0020] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] Please see the appendix Figure 1 -Appendix Figure 4 This utility model discloses a positioning device for circuit board pressing, comprising a base 1, a U-shaped frame 2 fixedly mounted on the upper end of the base 1, a cylinder 3 fixedly mounted on the upper inner side wall of the U-shaped frame 2, a frustum 4 rotatably mounted inside the cylinder 3, a rotating rod 5 fixedly connected to the middle of the upper end face of the frustum 4, the upper end of the rotating rod 5 rotatably passing through the upper side wall of the U-shaped frame 2 via a first bearing and fixedly connected to a first handle 6, a locking mechanism for fixing the frustum 4 is provided on the cylinder 3, a cylinder 7 is connected to the middle of the lower side of the frustum 4, a horizontal plate 8 is fixedly mounted on the lower end of the cylinder 7, telescopic grooves are provided on both the left and right sides of the horizontal plate 8, a shrink plate 9 is slidably mounted in each telescopic groove, a set of elastic telescopic rods 10 is fixedly mounted on the opposite ends of the lower sides of the two shrink plates 9, a strip pressure plate 11 is fixedly mounted on the lower end of each set of elastic telescopic rods 10, and an adjustment mechanism for driving the two shrink plates 9 to move relative to each other is provided in the horizontal plate 8.

[0022] In one embodiment of this utility model: the adjustment mechanism includes a gear pair, a bidirectional threaded rod 12, and an adjustment rod 13. A cavity is opened in the middle of the interior of the horizontal plate 8. The bidirectional threaded rod 12 is horizontally arranged in the cavity. Both ends of the rod wall of the bidirectional threaded rod 12 are rotatably passed through the left and right sides of the cavity through the second bearing and extend into the two telescopic grooves respectively. The two shrink plates 9 are threaded at opposite ends and are threadedly connected to the two ends of the rod wall of the bidirectional threaded rod 12 respectively. The adjustment rod 13 is rotatably inserted into the front side of the horizontal plate 8 through the third bearing, and the rear end of the adjustment rod 13 extends into the cavity and is connected to the bidirectional threaded rod 12 through the gear pair. A second handle 14 is fixedly connected to the front end of the adjustment rod 13.

[0023] In one embodiment of this utility model: the gear pair includes a first bevel gear 15 and a second bevel gear 16. Both the first bevel gear 15 and the second bevel gear 16 are located in a cavity. The first bevel gear 15 is fixedly connected to the rear end of the adjusting rod 13, and the second bevel gear 16 is fixedly sleeved to the rod wall of the bidirectional threaded rod 12. The first bevel gear 15 and the second bevel gear 16 are meshed together.

[0024] In one embodiment of this utility model: a rubber pad 17 is fixedly provided on the lower side of each strip pressure plate 11.

[0025] In one embodiment of this utility model: the snap-fit ​​mechanism includes a snap-fit ​​rod 18 and a tension spring 19. A circular hole is provided on the right side wall of the cylinder 3, and the snap-fit ​​rod 18 is slidably inserted into the circular hole. Two snap-fit ​​grooves are provided on the circumferential side wall of the frustum 4 for the snap-fit ​​rod 18 to slide into. The two snap-fit ​​grooves are vertically distributed. A pull ring 20 is fixedly provided on the outer end of the snap-fit ​​rod 18. The tension spring 19 is fixedly provided between the pull ring 20 and the cylinder 3, and the tension spring 19 is movably sleeved with the snap-fit ​​rod 18.

[0026] In one embodiment of this utility model: two arc-shaped sliding grooves are provided on the lower side of the cylinder 3, and sliders 21 are slidably arranged in both arc-shaped sliding grooves. Both sliders 21 are fixedly connected to the frustum 4. The arc of each arc-shaped sliding groove is 90 degrees, which can limit the rotation angle of the frustum 4 in the cylinder 3. When the frustum 4 rotates 90 degrees, it cannot continue to rotate.

[0027] Working principle:

[0028] In use, rotating the second handle 14 rotates the adjusting rod 13, which in turn rotates the double-threaded rod 12 via a gear pair. The rotation of the double-threaded rod 12 causes the two shrink plates 9 to move in opposite directions, thus adjusting their telescopic length. The two shrink plates 9, via two sets of elastic telescopic rods 10, respectively, cause the two strip pressure plates 11 to move in opposite directions, thereby adjusting the distance between the two strip pressure plates 11. This facilitates the pressing of multilayer circuit boards of different specifications. After two opposite edges of the multilayer circuit board are pressed together, pulling the pull ring 20 moves the locking rod 18, causing it to move out of the slot. Then, by rotating the first handle 6, the rotating rod 5 is driven to rotate. The rotating rod 5 drives the cylinder 7 and the horizontal plate 8 to rotate through the truncated cone 4, causing the horizontal plate 8 to drive the two strip pressure plates 11 to rotate 90 degrees. At this time, the locking rod 18 will align with another slot on the truncated cone 4. The pull ring 20 is released, and under the action of the tension spring 19, the locking rod 18 is inserted into this slot to fix the truncated cone 4, thereby enabling the pressing of the other two opposite sides of the multilayer circuit board. Through the above device, the distance between the two strip pressure plates 11 can be easily adjusted, thus facilitating the pressing of multilayer circuit boards of different sizes and specifications, making it more widely applicable and convenient for people to use.

[0029] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0031] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0032] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0034] For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model will still fall within the protection scope of this utility model.

Claims

1. A positioning device for circuit board pressing, comprising a base (1), characterized in that: A U-shaped frame (2) is fixedly installed on the upper end of the base (1). A cylinder (3) is fixedly installed on the upper inner wall of the U-shaped frame (2). A frustum (4) is rotatably installed inside the cylinder (3). A rotating rod (5) is fixedly connected to the middle of the upper end face of the frustum (4). The upper end of the rotating rod (5) passes through the upper wall of the U-shaped frame (2) through a first bearing and is fixedly connected to a first handle (6). A snap-fit ​​mechanism for fixing the frustum (4) is provided on the cylinder (3). The lower side of the frustum (4) A cylinder (7) is connected in the middle. A horizontal plate (8) is fixedly installed at the lower end of the cylinder (7). A telescopic groove is opened on both the left and right sides of the horizontal plate (8). A shrink plate (9) is slidably installed in each telescopic groove. A set of elastic telescopic rods (10) is fixedly installed at opposite ends of the lower side of the two shrink plates (9). A strip pressure plate (11) is fixedly installed at the lower end of each set of elastic telescopic rods (10). An adjustment mechanism that can drive the two shrink plates (9) to move relative to each other is provided in the horizontal plate (8).

2. The positioning device for circuit board pressing according to claim 1, characterized in that: The adjustment mechanism includes a gear pair, a bidirectional threaded rod (12), and an adjustment rod (13). A cavity is provided in the middle of the interior of the horizontal plate (8). The bidirectional threaded rod (12) is arranged horizontally in the cavity. Both ends of the rod wall of the bidirectional threaded rod (12) are rotated through the left and right sides of the cavity by the second bearing and extend into the two telescopic grooves respectively. The two shrink plates (9) are provided with threaded holes at their opposite ends and are threadedly connected to the two ends of the rod wall of the bidirectional threaded rod (12) respectively. The adjustment rod (13) is rotatably inserted into the front side of the horizontal plate (8) by the third bearing, and the rear end of the adjustment rod (13) extends into the cavity and is connected to the bidirectional threaded rod (12) through the gear pair. A second handle (14) is fixedly connected to the front end of the adjustment rod (13).

3. The positioning device for circuit board pressing according to claim 2, characterized in that: The gear pair includes a first bevel gear (15) and a second bevel gear (16). Both the first bevel gear (15) and the second bevel gear (16) are located in the cavity. The first bevel gear (15) is fixedly connected to the rear end of the adjusting rod (13). The second bevel gear (16) is fixedly sleeved to the wall of the bidirectional threaded rod (12). The first bevel gear (15) and the second bevel gear (16) are meshed together.

4. The positioning device for circuit board pressing according to claim 1, characterized in that: A rubber pad (17) is fixedly provided on the lower side of each of the strip pressure plates (11).

5. A positioning device for circuit board pressing according to claim 1, characterized in that: The snap-fit ​​mechanism includes a snap-fit ​​rod (18) and a tension spring (19). A circular hole is provided on the right side wall of the cylinder (3). The snap-fit ​​rod (18) is slidably inserted into the circular hole. Two slots are provided on the circumferential side wall of the truncated cone (4) for the snap-fit ​​rod (18) to slide into. The two slots are vertically distributed. A pull ring (20) is fixedly provided on the outer end of the snap-fit ​​rod (18). The tension spring (19) is fixedly provided between the pull ring (20) and the cylinder (3), and the tension spring (19) is movably sleeved with the snap-fit ​​rod (18).

6. The positioning device for circuit board pressing according to claim 1, characterized in that: Two arc-shaped grooves are provided on the lower side of the cylinder (3), and a slider (21) is slidably arranged in each of the two arc-shaped grooves. Both sliders (21) are fixedly connected to the frustum (4), and the arc of each arc-shaped groove is 90 degrees.

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