Printed circuit board (PCB) patch transferring device

Abstract

The utility model relates to the technical field of PCB surface mounting, and discloses a PCB surface mounting transferring device which comprises a bottom plate, the upper portion of the bottom plate is connected with a moving plate in a sliding mode, the upper surface of the moving plate is provided with a first sliding groove, the middle of the first sliding groove is connected with a first two-way screw in a rotating mode, the upper portion of the moving plate is connected with a moving frame in a sliding mode, and the upper portion of the moving frame is provided with a second two-way screw in a rotating mode. A first bevel gear is rotationally connected to the side face of the front portion of the moving frame, a square rod is rotationally connected to the upper portion of the moving plate, a second two-way screw is rotationally connected to the middle of the moving frame, and a second bevel gear is rotationally connected to the front portion of the second two-way screw. According to the utility model, the circuit board can be clamped in the left-right direction by rotating the first two-way screw, enabling the moving frames on the left side and the right side to be close to each other, rotating the square rod, enabling the two first bevel gears to rotate simultaneously, enabling the second bevel gear to rotate, enabling the second two-way screw to rotate, enabling the sliding blocks on the front side and the rear side to be close to each other, and clamping the circuit board in the front-back direction.

Description

Technical Field

[0001] This utility model relates to the field of PCB board mounting technology, specifically a PCB board mounting transfer device. Background Technology

[0002] PCB, or Printed Circuit Board, is an important electronic component. It serves as the support for electronic components and the carrier for their electrical connections. Because it is manufactured using electronic printing techniques, it is called a "printed" circuit board. PCB surface mount technology (SMT) is an electronic manufacturing process that accurately mounts surface mount components onto designated locations on a PCB. The SMT process typically involves printing solder paste, using a stencil to evenly coat the PCB pads; then, a pick-and-place machine quickly and accurately places various components onto their corresponding pads according to a programmed sequence; finally, reflow soldering melts the solder paste, ensuring reliable soldering between the component leads and the pads.

[0003] For example, Chinese Patent Publication No. CN216775409U discloses a fully automatic intelligent PCB board placement and transfer platform, which relates to the field of PCB board placement application technology. It includes a base plate, a bonding bracket fixed to the top surface of the base plate, a placement machine at the bottom of the bonding bracket, a moving track fixed to the top surface of the base plate, a worktable on the surface of the moving track, and the worktable movably connected to the moving track. Limit blocks are fixed to the sides of the moving track. A positioning sensor is fixed to the bottom surface of the bonding bracket, and a CCD camera is fixed to the sides of the bonding bracket. When the worktable moves horizontally along the moving track to below the placement machine, the positioning sensor detects the limit blocks fixed to the sides of the worktable, enabling precise positioning of the worktable. Furthermore, the CCD cameras on both sides of the bonding bracket allow for machine vision-based inspection of the bonded products. These designs replace manual labor with machines, improving the efficiency of PCB board placement.

[0004] After using the fully automatic intelligent PCB board mounting and transfer platform, it was found that although the platform can fix the circuit boards, the circuit boards are all different sizes, and it is inconvenient to change the clamping mold, thus limiting its practicality. Utility Model Content

[0005] The purpose of this invention is to provide a PCB board mounting and transfer device to solve the problem that the circuit boards are of different sizes and it is inconvenient to change the clamping mold.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a PCB board mounting and transfer device, comprising a base plate, a movable plate slidably connected to the upper part of the base plate, a first sliding groove formed on the upper surface of the movable plate, a first bidirectional screw rotatably connected to the middle of the first sliding groove, a movable frame slidably connected to the upper part of the movable plate, the first bidirectional screw threadedly connected to the movable frame, a sliding groove penetrating the middle of the movable frame, a slider slidably connected inside the sliding groove, a first bevel gear rotatably connected to the front side of the movable frame, a through hole formed in the middle of the first bevel gear, a square rod rotatably connected to the upper part of the movable plate, the square rod engaging with the through hole, a second bidirectional screw rotatably connected to the middle of the movable frame, a second bevel gear rotatably connected to the front of the second bidirectional screw, the first bevel gear meshing with the second bevel gear, and the second bidirectional screw threadedly connected to the slider.

[0007] Preferably, a motor is fixedly installed on the front side of the base plate, a lead screw is fixedly installed on the output shaft of the motor, a second sliding groove is provided on the upper part of the base plate, the lead screw is rotatably connected to the second sliding groove, and the lead screw is threadedly connected to the moving plate.

[0008] Preferably, a bracket is fixedly connected to the top of the base plate, an electric telescopic rod is fixedly installed in the middle of the bracket, and a chip mounter is installed on the output shaft of the electric telescopic rod.

[0009] Preferably, the two second bidirectional screws are parallel to each other.

[0010] Preferably, the first bidirectional screw and the second bidirectional screw are perpendicular to each other.

[0011] Preferably, the motor is a stepper motor, model 86BYG250D.

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

[0013] This invention clamps the circuit board from the left and right sides by rotating the first bidirectional screw, which brings the left and right movable frames closer together. Rotating the square rod causes the two first bevel gears to rotate simultaneously, and the second bevel gear and the second bidirectional screw to rotate, bringing the front and rear sliders closer together, which clamps the circuit board from the front and rear. This device does not require a clamping mold. When mounting circuit boards of different sizes, simply rotating the first bidirectional screw and the square rod is sufficient, making it convenient to use and improving its practicality. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 for Figure 1A magnified view of the structure at point A in the middle;

[0016] Figure 3 This is a schematic diagram of the first bidirectional screw and moving frame structure of this utility model;

[0017] Figure 4 This is a side cross-sectional view of the mobile frame of this utility model.

[0018] In the diagram: 1. Base plate; 101. Motor; 102. Lead screw; 2. Bracket; 201. Electric telescopic rod; 202. Placement machine; 3. Moving plate; 301. First bidirectional screw; 302. Moving frame; 303. Sliding groove; 4. Square rod; 401. First bevel gear; 402. Second bevel gear; 403. Second bidirectional screw; 404. Slider. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Please see Figure 1-4This utility model provides a technical solution: a PCB board mounting and transfer device, including a base plate 1, which is placed on a flat plane. A movable plate 3 is slidably connected to the upper part of the base plate 1. The movable plate 3 can move back and forth. A first sliding groove is formed on the upper surface of the movable plate 3. A first bidirectional screw 301 is rotatably connected to the middle of the first sliding groove. A movable frame 302 is slidably connected to the upper part of the movable plate 3. The first bidirectional screw 301 is threadedly connected to the movable frame 302. Rotation of the first bidirectional screw 301 can move the movable frame 302. The left and right movable frames 302 move in opposite directions and move closer to each other, clamping the circuit board from the left and right directions. A sliding groove 303 is formed through the middle of the movable frame 302. Two sets of sliding grooves 303 are parallel to each other. A slider 404 is slidably connected inside the sliding groove 303. The slider 404 moves, clamping the circuit board from the front and back directions. A first bevel gear 401 is rotatably connected to the front side of the 02. A through hole is provided in the middle of the first bevel gear 401. A square rod 4 is rotatably connected to the upper part of the movable plate 3. The square rod 4 cooperates with the through hole. Rotating the square rod 4 can make the two first bevel gears 401 rotate simultaneously. Although the movement of the movable frame 302 will cause the first bevel gears 401 to move, the square rod 4 always passes through the through hole in the middle of the first bevel gear 401. A second bidirectional screw 403 is rotatably connected to the middle of the movable frame 302. The second bevel gear 402 is rotatably connected to the front of the second bidirectional screw 403. The first bevel gear 401 and the second bevel gear 402 mesh. When the first bevel gear 401 rotates, the second bevel gear 402 rotates, and the second bidirectional screw 403 rotates. The second bidirectional screw 403 is threadedly connected to the slider 404. When the second bidirectional screw 403 rotates, the slider 404 can move, and the front and rear sliders 404 move in opposite directions.

[0021] The base plate 1 has a motor 101 fixedly installed on the front side, and a lead screw 102 fixedly installed on the output shaft of the motor 101. The upper part of the base plate 1 has a second sliding groove, and the lead screw 102 is rotatably connected to the second sliding groove. The lead screw 102 is threadedly connected to the moving plate 3. When the motor 101 rotates, the lead screw 102 can rotate, and the moving plate 3 can move back and forth. The circuit board is placed on the front side, and the chip mounter 202 is used to mount the circuit board on the rear side.

[0022] The base plate 1 is fixedly connected to the top of the bracket 2, and the bracket 2 is fixedly installed in the middle of the bracket 2. The output shaft of the electric telescopic rod 201 is equipped with a pick and place machine 202. The pick and place machine 202 can be replaced. The bracket 2 supports the electric telescopic rod 201. When the electric telescopic rod 201 is working, it can make the pick and place machine 202 move up and down to perform pick and place. Different pick and place machines 202 are used for different circuit boards.

[0023] Among them, the two second bidirectional screws 403 are parallel to each other, and the distance between the two front sliders 404 is always the same as the distance between the two rear sliders 404.

[0024] The first bidirectional screw 301 and the second bidirectional screw 403 are perpendicular to each other, and the four sliders 404 are always located at the four vertices of the rectangle.

[0025] Among them, the motor 101 is a stepper motor, model 86BYG250D. The motor 101 needs to rotate a fixed number of revolutions so that the moving plate 3 can move back and forth a fixed distance.

[0026] Working principle: When in use, rotating the first bidirectional screw 301 causes the left and right movable frames 302 to move closer together, clamping the circuit board from the left and right. Rotating the square rod 4 causes the two first bevel gears 401 to rotate simultaneously, the second bevel gear 402 to rotate, and the second bidirectional screw 403 to rotate. The front and rear sliders 404 move closer together, clamping the circuit board from the front and rear. This device is only suitable for rectangular circuit boards. The motor 101 rotates, the lead screw 102 rotates, and the movable plate 3 moves, placing the circuit board on the front side and placing it on the rear side via the pick-and-place machine 202.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PCB board patch transfer device comprising a base plate (1), characterized in that: The upper part of the bottom plate (1) is slidably connected with a moving plate (3), the upper surface of the moving plate (3) is provided with a first sliding groove, the middle part of the first sliding groove is rotatably connected with a first bidirectional screw rod (301), the upper part of the moving plate (3) is slidably connected with a moving frame (302), the first bidirectional screw rod (301) is threadedly connected with the moving frame (302), the middle part of the moving frame (302) is provided with a sliding groove (303), the inside of the sliding groove (303) is slidably connected with a sliding block (404), the front side of the moving frame (302) is rotatably connected with a first bevel gear (401), the middle part of the first bevel gear (401) is provided with a through hole, the upper part of the moving plate (3) is rotatably connected with a square rod (4), the square rod (4) is matched with the through hole, the middle part of the moving frame (302) is rotatably connected with a second bidirectional screw rod (403), the front part of the second bidirectional screw rod (403) is rotatably connected with a second bevel gear (402), the first bevel gear (401) is engaged with the second bevel gear (402), and the second bidirectional screw rod (403) is threadedly connected with the sliding block (404).

2. The PCB board pick-and-place device of claim 1, wherein: The front side of the bottom plate (1) is fixedly installed with a motor (101), the output shaft of the motor (101) is fixedly installed with a lead screw (102), the upper part of the bottom plate (1) is provided with a second sliding groove, the lead screw (102) is rotatably connected with the second sliding groove, and the lead screw (102) is threadedly connected with the moving plate (3).

3. The PCB board pick-and-place device of claim 1, wherein: The top of the bottom plate (1) is fixedly connected with a support (2), the middle part of the support (2) is fixedly installed with an electric telescopic rod (201), and the output shaft of the electric telescopic rod (201) is installed with a chip mounter (202).

4. The PCB board pick-and-place device of claim 1, wherein: The two second bidirectional screw rods (403) are parallel to each other.

5. The PCB board pick-and-place device of claim 1, wherein: The first bidirectional screw rod (301) is perpendicular to the second bidirectional screw rod (403).

6. The PCB board pick-and-place device of claim 2, wherein: The motor (101) is a stepper motor, and the model number is 86BYG250D.

Images