PCB press-fit return line clamping device

Abstract

The utility model discloses a PCB press-fit return line clamping device, which relates to the technical field of clamping devices and comprises a mounting plate, two rotating shaft parts are symmetrically arranged at two ends of the top of the mounting plate, and an electric press plate part is arranged at the bottom of the mounting plate. Clamping air cylinder parts are arranged on the sides, close to each other, of the two rotating shaft parts, and lead screw motor parts are arranged at the tops of the rotating shaft parts; a pull rod is arranged on a pneumatic rod of the clamping cylinder part; two clamping rods are symmetrically arranged at the two ends of the lead screw motor component. And a linkage rod is arranged at the top of the clamping rod. Through the above structure, the distance between the clamping rods can be adjusted, printed circuit boards of different sizes can be clamped, the equipment cost can be reduced, the production efficiency can be improved, the top of the printed circuit board can be pressed, and the printed circuit board can be prevented from moving when the equipment moves the printed circuit board.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping devices, in particular to a PCB pressing return line clamping device. Background Art

[0002] A printed circuit board (PCB), short for printed circuit board, is an integral part of modern electronic devices. It's a substrate used to connect electronic components and provide electrical connections. The design and production of a PCB involves several complex steps, including circuit design, layout, wiring, fabrication, and testing.

[0003] During PCB production, different PCB sizes require different clamping devices. However, adding multiple clamping devices not only increases production costs but also requires frequent replacement of clamping devices, significantly reducing production efficiency. Therefore, we propose a clamping device for PCB press-fit reflow lines to address these issues. Utility Model Content

[0004] The purpose of the present utility model is to provide a PCB pressing return line clamping device to solve the problem raised in the above background technology that different sizes of PCBs require clamping devices of different sizes. However, adding clamping devices of multiple specifications not only increases production costs, but also requires frequent replacement of clamping devices, which greatly reduces production efficiency.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A PCB pressing and reflow line clamping device includes a mounting plate, two rotating shaft components are symmetrically provided at both ends of the top of the mounting plate, an electric pressing plate component is provided at the bottom of the mounting plate, a clamping cylinder component is provided on one side of the two rotating shaft components close to each other, a screw motor component is provided on the top of the rotating shaft component, a pull rod is provided on the pneumatic rod of the clamping cylinder component, two clamping rods are symmetrically provided at both ends of the screw motor component, and a linkage rod is provided on the top of the clamping rod;

[0007] The rotating shaft component includes two rotating shaft mounting seats, and a rotating shaft is provided on one side of the two rotating shaft mounting seats close to each other. Two limit pins are symmetrically provided on both sides of the rotating shaft, and two screw mounting blocks are provided at both ends of the rotating shaft through the rotating shaft mounting seats.

[0008] Furthermore, the two rotating shaft mounting seats are respectively fixedly connected to the two sides of one end of the top of the mounting plate, the two ends of the rotating shaft are respectively rotatably connected to the two rotating shaft mounting seats, the two limit pins are fixedly connected to the rotating shaft, and the two screw mounting blocks are respectively fixedly connected to the two ends of the rotating shaft.

[0009] Furthermore, the screw motor component includes forward and reverse screws, one end of the forward and reverse screws is provided with a motor through the screw mounting block, the two ends of the forward and reverse screws are respectively rotatably connected to the two screw mounting blocks, the motor is fixedly connected to the screw mounting block, and the transmission shaft of the motor is fixedly connected to the forward and reverse screws.

[0010] Furthermore, the tops of the two clamping rods are respectively threadedly connected to the two ends of the forward and reverse lead screws, and the other ends of the clamping rods are slidably connected to the rotating shaft through a limit pin.

[0011] Furthermore, one end of the linkage rod is rotatably connected to the clamping rod on the forward and reverse screw on one side, and the other end of the linkage rod is rotatably connected to the clamping rod on the forward and reverse screw on the other side.

[0012] Furthermore, the bottom of the pull rod is fixedly connected to the rotating shaft on one side of the top of the mounting plate, and the top of the pull rod is slidably connected to the forward and reverse screws on the top of the rotating shaft.

[0013] Furthermore, the clamping cylinder component includes a cylinder mounting seat, a cylinder is provided on the top of the cylinder mounting seat, the cylinder mounting seat is fixedly connected to the mounting plate, the bottom of the cylinder is rotatably connected to the cylinder mounting seat, and the pneumatic rod of the cylinder is rotatably connected to the pull rod.

[0014] Furthermore, the electric pressure plate component includes an electric push rod, a pressure plate is provided at the bottom of the electric push rod, the top of the electric push rod is fixedly connected to the mounting plate, a plurality of sliding rods are evenly spaced at the top of the pressure plate, the top of the pressure plate is fixedly connected to the bottom of the electric push rod, the bottoms of the plurality of sliding rods are fixedly connected to the pressure plate, and the sliding rods are slidably connected to the mounting plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The present invention comprises a mounting plate with two symmetrically mounted rotating shaft components at both ends of the top of the mounting plate. A clamping cylinder component is mounted on one side of the two rotating shaft components, and a lead screw motor component is mounted on top of the rotating shaft component. A pull rod is mounted on the pneumatic rod of the clamping cylinder component, and two symmetrically mounted clamping rods are mounted on both ends of the lead screw motor component. A linkage rod is mounted on top of each clamping rod. During this process, the clamping cylinder component drives the rotating shaft component, thereby driving multiple clamping rods inward to clamp printed circuit boards. Furthermore, the lead screw motor component drives the clamping rods to slide, allowing the distance between the clamping rods to be adjusted to clamp printed circuit boards of different sizes.

[0017] 2. The present invention utilizes a mounting plate with an electric pressure plate assembly disposed at its bottom. The electric pressure plate assembly includes an electric push rod, a pressure plate disposed at its bottom, and multiple sliding rods evenly spaced atop the pressure plate. During operation, the electric push rod pushes the pressure plate, which, after the multiple clamping rods have lifted the printed circuit board, presses down on the top of the printed circuit board, preventing the printed circuit board from moving and potentially damaging it when the device is moved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the electric pressing plate component of the utility model;

[0020] Figure 3 This is a schematic diagram of the side installation structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the screw motor component of the utility model;

[0022] Figure 5 This is a schematic diagram of the installation structure of the clamping cylinder component of the utility model;

[0023] Figure markings: 1. Mounting plate; 2. Rotating shaft component; 201. Rotating shaft mounting seat; 202. Rotating shaft; 203. Limit pin; 204. Screw mounting block; 3. Electric pressure plate component; 301. Electric push rod; 302. Pressure plate; 303. Sliding rod; 4. Clamping cylinder component; 401. Cylinder mounting seat; 402. Cylinder; 5. Screw motor component; 501. Forward and reverse screw; 502. Motor; 6. Pull rod; 7. Clamping rod; 8. Linkage rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 5The utility model provides a technical solution: a PCB pressing and reflow line clamping device, comprising a mounting plate 1, two rotating shaft components 2 are symmetrically provided at both ends of the top of the mounting plate 1, an electric pressing plate component 3 is provided at the bottom of the mounting plate 1, a clamping cylinder component 4 is provided on one side of the two rotating shaft components 2 close to each other, a screw motor component 5 is provided on the top of the rotating shaft component 2, a pull rod 6 is provided on the pneumatic rod of the clamping cylinder component 4, two clamping rods 7 are symmetrically provided at both ends of the screw motor component 5, and a linkage rod 8 is provided on the top of the clamping rod 7;

[0026] The rotating shaft component 2 includes two rotating shaft mounting seats 201, and a rotating shaft 202 is set on one side of the two rotating shaft mounting seats 201 close to each other. Two limit pins 203 are symmetrically set on both sides of the rotating shaft 202, and two screw mounting blocks 204 are set at both ends of the rotating shaft 202 through the rotating shaft mounting seats 201.

[0027] Two rotating shaft mounting blocks 201 are fixedly connected to both sides of one end of the top of the mounting plate 1. The ends of the rotating shaft 202 are rotatably connected to the two rotating shaft mounting blocks 201. Two stop pins 203 are fixedly connected to the rotating shaft 202. Two lead screw mounting blocks 204 are fixedly connected to both ends of the rotating shaft 202. In this embodiment, the provision of the stop pins 203 facilitates the sliding of the clamping rod 7 on the rotating shaft 202 and enables the rotating shaft 202 to drive the printed circuit board to be clamped.

[0028] The screw motor assembly 5 includes a forward and reverse screw 501. One end of the forward and reverse screw 501 passes through the screw mounting block 204 and is provided with a motor 502. The two ends of the forward and reverse screw 501 are respectively rotatably connected to the two screw mounting blocks 204. The motor 502 is fixedly connected to the screw mounting block 204, and the drive shaft of the motor 502 is fixedly connected to the forward and reverse screw 501. In this embodiment, the forward and reverse screw 501 is driven by the motor 502 to rotate, thereby driving the clamping rod 7, and adjusting the distance between the clamping rods 7 to facilitate clamping of the printed circuit board.

[0029] The tops of the two clamping rods 7 are respectively threadedly connected to the two ends of the forward and reverse lead screws 501, and the other ends of the clamping rods 7 are slidably connected to the rotating shaft 202 through the limit pin 203.

[0030] One end of the linkage rod 8 is rotatably connected to the clamping rod 7 on one side of the forward and reverse screw 501, and the other end of the linkage rod 8 is rotatably connected to the clamping rod 7 on the other side of the forward and reverse screw 501. In this embodiment, by providing the linkage rod 8, when the clamping rod 7 on one side clamps one side of the printed circuit board, it can drive the clamping rod 7 on the other side to clamp the other side of the printed circuit board.

[0031] The bottom of the pull rod 6 is fixedly connected to the rotating shaft 202 on one side of the top of the mounting plate 1, and the top of the pull rod 6 is slidably connected to the forward and reverse screw 501 on the top of the rotating shaft 202. In this embodiment, by providing the pull rod 6, it is convenient for the cylinder 402 to push the rotating shaft 202 and thus clamp the printed circuit board.

[0032] The clamping cylinder component 4 includes a cylinder mounting seat 401, a cylinder 402 is provided on the top of the cylinder mounting seat 401, the cylinder mounting seat 401 is fixedly connected to the mounting plate 1, the bottom of the cylinder 402 is rotatably connected to the cylinder mounting seat 401, and the pneumatic rod of the cylinder 402 is rotatably connected to the pull rod 6.

[0033] The electric pressure plate component 3 includes an electric push rod 301, a pressure plate 302 is provided at the bottom of the electric push rod 301, the top of the electric push rod 301 is fixedly connected to the mounting plate 1, and a plurality of sliding rods 303 are evenly spaced at the top of the pressure plate 302. The top of the pressure plate 302 is fixedly connected to the bottom of the electric push rod 301, and the bottoms of the plurality of sliding rods 303 are fixedly connected to the pressure plate 302. The sliding rods 303 are slidably connected to the mounting plate 1. In this embodiment, the provision of the plurality of sliding rods 303 facilitates the stable sliding of the pressure plate 302 within the mounting plate 1, thereby stably pressing the printed circuit board.

[0034] Working principle: The motor 502 drives the forward and reverse screws 501 to rotate, and then drives the clamping rods 7 at both ends to adjust the distance between the clamping rods 7 at both ends. The pneumatic rod of the cylinder 402 pushes the pull rod 6, and then drives the rotating shaft 202 to rotate. The rotating shaft 202 drives the clamping rod 7 to clamp one side of the printed circuit board through the limit pin 203. The clamping rod 7 drives the other side clamping rod 7 to clamp the other side of the printed circuit board through the linkage rod 8, and then clamps the bottom of both sides of the printed circuit board. At this time, the electric push rod 301 pushes the pressure plate 302, and the sliding rod 303 slides inside the mounting plate 1. The pressure plate 302 presses the top of the printed circuit board to facilitate the movement of the printed circuit board.

[0035] 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PCB pressing and reflow line clamping device, characterized by: It comprises a mounting plate (1), two rotating shaft components (2) are symmetrically arranged at both ends of the top of the mounting plate (1), an electric pressure plate component (3) is arranged at the bottom of the mounting plate (1), a clamping cylinder component (4) is arranged on one side of the two rotating shaft components (2) close to each other, a screw motor component (5) is arranged on the top of the rotating shaft component (2), a pull rod (6) is arranged on the pneumatic rod of the clamping cylinder component (4), two clamping rods (7) are symmetrically arranged at both ends of the screw motor component (5), and a linkage rod (8) is arranged on the top of the clamping rod (7); The rotating shaft component (2) comprises two rotating shaft mounting seats (201), a rotating shaft (202) is provided on one side of the two rotating shaft mounting seats (201) close to each other, two limiting pins (203) are symmetrically provided on both sides of the rotating shaft (202), and two screw mounting blocks (204) are provided at both ends of the rotating shaft (202) passing through the rotating shaft mounting seats (201).

2. A PCB pressing and reflow line clamping device according to claim 1, characterized in that: The two rotating shaft mounting seats (201) are respectively fixedly connected to the two sides of one end of the top of the mounting plate (1); the two ends of the rotating shaft (202) are respectively rotatably connected to the two rotating shaft mounting seats (201); the two limiting pins (203) are fixedly connected to the rotating shaft (202); and the two lead screw mounting blocks (204) are respectively fixedly connected to the two ends of the rotating shaft (202).

3. A PCB pressing and reflow line clamping device according to claim 2, characterized in that: The screw motor component (5) includes a forward and reverse screw (501), one end of the forward and reverse screw (501) passes through a screw mounting block (204) and is provided with a motor (502), both ends of the forward and reverse screw (501) are rotatably connected to the two screw mounting blocks (204), the motor (502) is fixedly connected to the screw mounting block (204), and the transmission shaft of the motor (502) is fixedly connected to the forward and reverse screw (501).

4. The PCB pressing and reflow line clamping device according to claim 3, characterized in that: The tops of the two clamping rods (7) are respectively threadedly connected to the two ends of the forward and reverse lead screws (501), and the other ends of the clamping rods (7) are slidably connected to the rotating shaft (202) via a limit pin (203).

5. The PCB pressing and reflow line clamping device according to claim 4, characterized in that: One end of the linkage rod (8) is rotatably connected to the clamping rod (7) on the forward and reverse screw (501) on one side, and the other end of the linkage rod (8) is rotatably connected to the clamping rod (7) on the forward and reverse screw (501) on the other side.

6. The PCB pressing and reflow line clamping device according to claim 5, characterized in that: The bottom of the pull rod (6) is fixedly connected to the rotating shaft (202) on one side of the top of the mounting plate (1), and the top of the pull rod (6) is slidably connected to the forward and reverse screws (501) on the top of the rotating shaft (202).

7. The PCB pressing and reflow line clamping device according to claim 1, characterized in that: The clamping cylinder component (4) includes a cylinder mounting seat (401), a cylinder (402) is provided on the top of the cylinder mounting seat (401), the cylinder mounting seat (401) is fixedly connected to the mounting plate (1), the bottom of the cylinder (402) is rotatably connected to the cylinder mounting seat (401), and the pneumatic rod of the cylinder (402) is rotatably connected to the pull rod (6).

8. The PCB pressing and reflow line clamping device according to claim 1, characterized in that: The electric pressure plate component (3) includes an electric push rod (301), a pressure plate (302) is provided at the bottom of the electric push rod (301), the top of the electric push rod (301) is fixedly connected to the mounting plate (1), a plurality of sliding rods (303) are evenly spaced at the top of the pressure plate (302), the top of the pressure plate (302) is fixedly connected to the bottom of the electric push rod (301), the bottoms of the plurality of sliding rods (303) are fixedly connected to the pressure plate (302), and the sliding rods (303) are slidably connected to the mounting plate (1).

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