CN-122002715-A - Automatic positioning and pressing device for circuit board and working method of automatic positioning and pressing device

Abstract

The invention discloses an automatic positioning and pressing device for a circuit board and a working method thereof, which relate to the field of integrated circuit board production and comprise a frame, wherein a bottom pressing plate is fixedly connected on the frame, the top pressing plate is arranged at a corresponding position above the bottom pressing plate and fixedly connected with the frame through a first vertical electric push rod, and a heating assembly for heating the top pressing plate and the bottom pressing plate is fixedly connected to the frame. The automatic centering device has the beneficial effects that the automatic centering of the circuit board is realized by matching the guide inclined plane of the electric grid frame with the adaptive inclined plane of the guide block, manual intervention is not needed, and press fit dislocation caused by circuit board deviation and skew is effectively avoided. The top pressing plate and the bottom pressing plate are strictly arranged in parallel, and are matched with a uniform pressing surface and adjustable pressure, so that the whole circuit board is uniformly stressed, no warpage or layering exists after pressing, and the product quality of the circuit board is obviously improved.

Inventors

• LI HONGMEI
• XIA HU

Assignees

• 深圳市睿杰鑫电子有限公司

Dates

Publication Date

20260508

Application Date

20260204

Claims (10)

1. 1. The automatic positioning and pressing device for the circuit board is characterized by comprising a frame (1), wherein a bottom pressing plate (3) is fixedly connected to the frame (1), a top pressing plate (2) is arranged at a corresponding position above the bottom pressing plate (3), the top pressing plate (2) is fixedly connected with the frame (1) through a first vertical electric push rod (4), and a heating component (5) for heating the top pressing plate (2) and the bottom pressing plate (3) is fixedly connected to the frame (1); The electric grille frame (8) is connected to the bottom pressing plate (3) in a sliding manner and used for moving the pressed circuit board out of the bottom pressing plate (3), and the cooling component (6) is fixedly connected to the frame (1) and used for cooling the circuit board and pushing the circuit board out of the electric grille frame (8).
2. 2. The automatic positioning and pressing device for the circuit board according to claim 1, wherein the first electric push rod (4) is vertically and fixedly connected to the frame (1), the other end of the first electric push rod (4) is fixedly connected with the top pressing plate (2), and the top pressing plate (2) is parallel to the bottom pressing plate (3).
3. 3. The automatic positioning and pressing device for the circuit board according to claim 1, wherein the pushing assembly (7) is arranged on the top pressing plate (2) and used for pushing the circuit board to separate the circuit board from the bottom of the top pressing plate (2).
4. 4. The automatic positioning and pressing device for the circuit board according to claim 3, wherein the pushing assembly (7) comprises a plurality of spring pins (701), the spring pins (701) are arranged at the top of the top pressing plate (2), the pin shafts penetrate through the top pressing plate (2) and are fixedly connected with the top plate (702), and grooves in clearance fit with the top plate (702) are formed in the bottom of the top pressing plate (2).
5. 5. The automatic positioning and pressing device for the circuit board according to claim 1, wherein the heating assembly (5) comprises an electric heating water tank (501) fixedly connected to the frame (1), circulating pore channels (505) are formed in the top pressing plate (2) and the bottom pressing plate (3), the two circulating pore channels (505) are mutually communicated through a second pipeline (504), and the two circulating pore channels (505) are respectively communicated with the electric heating water tank (501) through a circulating pump (502) and a first pipeline (503).
6. 6. The automatic positioning and pressing device for the circuit board according to claim 1, wherein the electric grid frame (8) comprises a plurality of sliding grooves (805) which are formed in the bottom pressing plate (3) and are parallel to each other in the length direction, sliding strips (803) are connected in a sliding mode in the sliding grooves (805), and the sliding strips (803) are fixedly connected through connecting rods (802).
7. 7. The automatic positioning and pressing device for the circuit board according to claim 6, wherein the electric grid frame (8) further comprises an electric push rod II (801) fixedly connected to the frame (1), the movable end of the electric push rod II (801) is fixedly connected with the connecting rod (802), two convex and symmetrical guide inclined planes (804) are arranged on the sliding strip (803), the guide inclined planes (804) are staggered with the top pressing plate (2), and the parts, except the guide inclined planes (804), of the upper side of the sliding strip (803) are flush with the upper side of the bottom pressing plate (3).
8. 8. The automatic positioning and pressing device for the circuit board according to claim 7, wherein the cooling component (6) comprises a mounting plate (601) fixedly connected to the frame (1), two first rotating shafts (602) are rotatably connected to the mounting plate (601), fans (603) are fixedly connected to the first rotating shafts (602), the two fans (603) are parallel to each other and respectively dissipate heat at the top and the bottom of the circuit board, ejector rods (609) are fixedly connected to the fans (603) at the lower side, and the ejector rods (609) are arc-shaped and can penetrate through gaps between two adjacent sliding strips (803).
9. 9. The automatic positioning and pressing device for the circuit board according to claim 8, wherein a synchronizing wheel (608) is fixedly connected to the first rotating shaft (602), the second rotating shaft (604) is rotatably connected to the mounting plate (601), a double-groove synchronizing belt wheel (606) is fixedly connected to the second rotating shaft (604), the double-groove synchronizing belt wheel (606) is respectively in transmission connection with the two synchronizing wheels (608) through two synchronizing belts (607), a motor (605) is fixedly connected to the mounting plate (601), and an output shaft of the motor (605) is fixedly connected with the end portion of the second rotating shaft (604) and is used for rotating the second rotating shaft (604).
10. 10. An operating method of an automatic positioning and pressing device for a circuit board is based on any one of claims 1-9, characterized in that: S1, starting a heating assembly (5), starting an electric heating water tank (501) and a circulating pump (502), monitoring heating temperature changes, and ensuring that a top pressing plate (2) and a bottom pressing plate (3) are uniformly heated to a preset pressing temperature; S2, ensuring the circuit board to be positioned on the electric grid frame (8) in a centered manner by means of a guide block (9) and a guide inclined plane (804) of the slide bar (803), starting an electric push rod I (4), observing the uniform descending of the top pressing plate (2), applying preset pressure to enter a constant-temperature pressing stage after the circuit board is attached, continuously monitoring the running state of equipment (no abnormal sound, stable pressure and normal temperature) in the pressing process, strictly preventing from leaving a post, and recording pressing parameters; S3, after the lamination is completed, starting an electric push rod I (4) to drive a top pressing plate (2) to reset, observing that a top plate (702) of a pushing component (7) normally stretches out, ensuring that a circuit board and the top pressing plate (2) are completely debonded, starting an electric grid frame (8), stably transferring the circuit board between fans (603) of a cooling component (6), starting a motor (605) to perform double-sided cooling, monitoring the cooling speed of the circuit board until the cooling speed is reduced to a preset blanking temperature, observing that the fans (603) overturn and a push rod (609) push the circuit board to blanking after the cooling is completed, confirming that the circuit board accurately falls into a collecting device or a next process channel, and controlling the cooling component and the electric grid frame to reset at the same time so as to prepare for the next batch operation.

Description

Automatic positioning and pressing device for circuit board and working method of automatic positioning and pressing device Technical Field The invention relates to the technical field of integrated circuit board production, in particular to an automatic positioning and pressing device for a circuit board and a working method thereof. Background In the production and processing process of the circuit board, the pressing procedure is a key link for realizing the adhesion of each layer of circuit board, and the cooling and blanking procedure after pressing is a core bottleneck for guaranteeing the product quality of the circuit board and improving the production safety and efficiency. The existing device adopts a mode of unidirectional blowing cooling or natural cooling, and the heat dissipation speed of the upper surface and the lower surface of the high-temperature circuit board is inconsistent, so that the circuit board is easy to warp and delaminate after cooling, the product quality is affected, the cooling time is too long, and the production beat is seriously dragged and slowed down; After cooling is finished, the circuit board is manually taken out from the cooling area, an operator directly contacts the high-temperature circuit board to easily cause scalding accidents, great potential safety hazards exist, meanwhile, the manual blanking efficiency is low, the surface of the circuit board is easily scratched due to misoperation, and the circuit board is easily deformed; the blanking structural design is unreasonable, and partial device tries to set up simple and easy unloading part, but unloading part and cooling part mutual interference can't realize synchronous linkage, and the problem that card material, unloading are unsmooth easily appears during the unloading, need artifical supplementary clearance, further increase intensity of labour. Disclosure of Invention The present invention is directed to an automatic positioning and pressing device for a circuit board and a working method thereof, which are described in detail below. In order to achieve the above purpose, the present invention provides the following technical solutions: The invention provides an automatic positioning and pressing device for a circuit board, which comprises a frame, wherein a bottom pressing plate is fixedly connected to the frame, a top pressing plate is arranged at a corresponding position above the bottom pressing plate, the top pressing plate is fixedly connected with the frame through a first vertical electric push rod, and a heating component for heating the top pressing plate and the bottom pressing plate is fixedly connected to the frame; The electric grille frame is connected to the bottom pressing plate in a sliding manner and used for moving the pressed circuit board out of the bottom pressing plate, and the cooling assembly is fixedly connected to the frame and used for cooling the circuit board and pushing the circuit board away from the electric grille frame. Preferably, the first electric push rod is vertically and fixedly connected to the frame, the other end of the first electric push rod is fixedly connected with a top pressing plate, and the top pressing plate is parallel to the bottom pressing plate. Preferably, a pushing component is arranged on the top pressing plate and used for pushing the circuit board to separate the circuit board from the bottom of the top pressing plate. Preferably, the pushing assembly comprises a plurality of spring pins, the spring pins are arranged at the top of the top pressing plate, the pin shafts penetrate through the top pressing plate and are fixedly connected with a top plate, and grooves in clearance fit with the top plate are formed in the bottom of the top pressing plate. Preferably, the heating assembly comprises an electric heating water tank fixedly connected to the frame, circulating pore channels are formed in the top pressing plate and the bottom pressing plate, the two circulating pore channels are mutually communicated through a second pipeline, and the two circulating pore channels are respectively communicated with the electric heating water tank through a first circulating pump and a first pipeline. Preferably, the electric grid frame comprises a plurality of sliding grooves which are formed in the bottom pressing plate and are parallel to each other in the length direction, sliding strips are connected in the sliding grooves in a sliding mode, and the sliding strips are fixedly connected through connecting rods. Preferably, the electric grille frame further comprises an electric push rod II fixedly connected to the frame, the movable end of the electric push rod II is fixedly connected with the connecting rod, two convex and symmetrical guide inclined planes are arranged on the slide bar, the guide inclined planes are staggered with the top pressing plate, and the parts, except the guide inclined planes, of the upper side of the slide bar are flush wi