CN-117733453-B - Liquid crystal display welding positioning device

Abstract

The invention discloses a liquid crystal display welding positioning device which comprises a base plate, a positioning plate, a pressing plate, a cover plate and a pressing piece, wherein a concave cavity is formed in the base plate, the positioning plate is covered on the base plate, a hollowed-out portion is formed in the positioning plate, the pressing plate is covered on the positioning plate, a hollow-out avoidance hole is formed in the pressing plate, when the pressing plate is covered on the positioning plate, at least a part of the pressing plate is pressed above the hollowed-out portion, the cover plate is covered on the pressing plate, the pressing piece is arranged on the base plate, and the pressing piece can be pressed on the top of the cover plate to press the cover plate, the pressing plate and the positioning plate. The liquid crystal screen welding positioning device can weld the liquid crystal screen with longer pins and more pins on the circuit board with high quality, and ensure the installation precision of the liquid crystal screen on the circuit board.

Inventors

• GUO WENBIAO

Assignees

• 珠海市声驰电器有限公司

Dates

Publication Date

20260512

Application Date

20231223

Claims (9)

1. 1. Liquid crystal display welding positioner, its characterized in that includes: The liquid crystal display comprises a substrate, wherein a concave cavity for accommodating a liquid crystal display circuit board is formed in the substrate, and an opening for inserting pins of the liquid crystal display is formed in the inner bottom of the concave cavity; The positioning plate is covered on the substrate, the positioning plate is provided with a hollowed-out part for accommodating a substrate of a liquid crystal screen of the liquid crystal screen circuit board, the positioning plate is provided with a first avoidance position and a second avoidance position, the hollowed-out part comprises a first hollowed-out part and a second hollowed-out part which are mutually communicated, the first hollowed-out part is square, the second hollowed-out part is triangular, the first avoidance position is arranged on the side wall of the first hollowed-out part, the second avoidance position is arranged on the side wall of the second hollowed-out part, and the first avoidance position and the second avoidance position are respectively used for avoiding pins of the liquid crystal screen circuit board; the pressing plate is covered on the positioning plate, an avoidance hollow space is formed in the pressing plate, when the pressing plate is covered on the positioning plate, at least one part of the pressing plate is pressed above the hollow part, the avoidance hollow space is square, the avoidance hollow space is used for accommodating a liquid crystal screen of the liquid crystal screen circuit board, and when the pressing plate is covered on the positioning plate, at least one part of the pressing plate can be pressed above the second hollow part; A cover plate covered on the pressing plate to cover the hollow-out space and The pressing pieces are arranged on the base plate and can be propped against the top of the cover plate to press the cover plate, the pressing plate and the positioning plate.
2. 2. The welding positioning device of the liquid crystal display screen according to claim 1, wherein the pressing member comprises a base, an adjusting bolt, a spring and a pressing part, the base is arranged on the base, the adjusting bolt is screwed on the base, the spring is sleeved on the adjusting bolt, the pressing part is sleeved on the adjusting bolt and is rotationally connected with the adjusting bolt, one end of the spring is pressed on the pressing part, the other end of the spring is pressed on a nut of the adjusting bolt, The pressing part can be pressed on the top of the cover plate to press the cover plate, the pressing plate and the positioning plate.
3. 3. The device for positioning and soldering a liquid crystal display according to claim 1, wherein the openings comprise a first opening, a second opening and a third opening, the first opening and the second opening are respectively used for inserting pins of a circuit board of the liquid crystal display, and the third opening is used for accommodating soldering positions of connection terminals of the circuit board of the liquid crystal display.
4. 4. The liquid crystal display welding positioning device according to claim 1, wherein a third avoidance position for avoiding pins of the liquid crystal display circuit board is arranged on the side wall of the avoidance hollow space.
5. 5. The welding positioning device of a liquid crystal display screen according to claim 1, wherein a first concave avoidance portion is arranged between two adjacent side walls of the concave cavity.
6. 6. The welding positioning device of a liquid crystal display screen according to claim 4, wherein the four corner positions of the first hollowed-out portion are respectively provided with a second concave avoiding portion.
7. 7. The welding positioning device for the liquid crystal display according to any one of claims 1 to 6, further comprising at least two positioning columns, wherein the bottoms of the positioning columns are arranged on the corner positions of the inner bottom of the concave cavity, the at least two positioning columns are respectively positioned on two diagonal positions of the inner bottom of the concave cavity, at least two first through holes matched with the positioning columns are formed in the positioning plate, at least two second through holes matched with the positioning columns are formed in the pressing plate, at least two third through holes matched with the positioning columns are formed in the cover plate, and the positioning columns can be sequentially inserted into the first through holes, the second through holes and the third through holes.
8. 8. The welding positioning device of claim 7, wherein the number of the positioning posts, the first through holes, the second through holes and the third through holes is two, and the two positioning posts are respectively positioned at two diagonal positions of the bottom in the concave cavity.
9. 9. The welding and positioning device for the liquid crystal display according to claim 7, wherein the number of the positioning columns, the number of the first perforations and the number of the second perforations are two, the number of the third perforations is four, the two positioning columns are respectively positioned on two diagonal positions of the bottom in the concave cavity, and the four third perforations are distributed in a square shape.

Description

Liquid crystal display welding positioning device Technical Field The invention relates to a liquid crystal display welding positioning device. Background The liquid crystal display (such as the liquid crystal display on the kneader) needs to be welded on the circuit board, in order to enable the liquid crystal display not to interfere with components and parts on the drive circuit board, the length of pins on the liquid crystal display is sometimes longer, and the number of pins on the liquid crystal display is also more, so that when the pins on the liquid crystal display are plugged on the circuit board, the pins are longer and the number is more, the length of each pin on the liquid crystal display extending out of the bottom of the circuit board is difficult to keep consistent when each pin on the liquid crystal display is plugged on the circuit board, and therefore the liquid crystal display is easy to incline bad after the pins of the liquid crystal display are welded, and the follow-up clamping installation of the liquid crystal display is affected. For this reason, it is necessary to develop an auxiliary positioning device that can ensure that the protruding length of each pin on the liquid crystal panel is consistent when it is plugged onto the circuit board. Disclosure of Invention The invention aims to provide a liquid crystal display welding positioning device which aims to solve at least one of the technical problems. The invention provides a liquid crystal display welding positioning device, which comprises: The substrate is provided with a concave cavity for accommodating the liquid crystal display circuit board, and the inner bottom of the concave cavity is provided with an opening for inserting pins of the liquid crystal display; the positioning plate is covered on the base plate and is provided with a hollowed-out part for accommodating a substrate of a liquid crystal screen of the liquid crystal screen circuit board; The pressing plate is covered on the positioning plate, an avoidance hollowed-out hole is formed in the pressing plate, and when the pressing plate is covered on the positioning plate, at least one part of the pressing plate is pressed above the hollowed-out part; a cover plate covering the pressing plate to cover the hollow space and The pressing pieces are arranged on the base plate and can be propped against the top of the cover plate to press the cover plate, the pressing plate and the positioning plate. According to the liquid crystal screen welding positioning device, after all pins of the liquid crystal screen are inserted into the circuit board, when the pins of the liquid crystal screen are required to be welded, the circuit board of the liquid crystal screen is clamped and accommodated in the concave cavity on the base plate, the pins of the liquid crystal screen are partially inserted into the holes on the bottom in the concave cavity, then the positioning plate is covered on the base plate, at the moment, the base of the liquid crystal screen of the circuit board of the liquid crystal screen is accommodated in the hollowed-out part, the positioning plate can prevent the liquid crystal screen of the circuit board of the liquid crystal screen from moving on the horizontal plane, then the pressing plate is covered on the positioning plate, the base of the liquid crystal screen of the circuit board of the liquid crystal screen can be further prevented from moving on the horizontal plane, then the cover plate is covered on the pressing plate to further ensure that the liquid crystal screen of the circuit board of the liquid crystal screen cannot move on the longitudinal direction, and finally the pressing piece is pressed on the cover plate, at the moment, the liquid crystal screen of the circuit board is positioned, pressed and fixed on the horizontal plane and the longitudinal direction, so that the pins of the liquid crystal screen of the circuit board can be prevented from moving on the horizontal plane, the liquid crystal screen can be further, the pins of the liquid crystal screen can be prevented from being mounted on the bottom the circuit board, the circuit board can be further, the pins of the liquid crystal screen can be prevented from being welded, and the pins can be successfully, and the quality of the liquid crystal screen can be welded, and the pins can be guaranteed to be mounted on the surface higher, and the pins can be well, and can be mounted on the pins and can be welded. Preferably, the pressing piece comprises a base, an adjusting bolt, a spring and a pressing part, wherein the base is arranged on the base plate, the adjusting bolt is screwed on the base, the spring is sleeved on the adjusting bolt, the pressing part is sleeved on the adjusting bolt and is rotationally connected with the adjusting bolt, one end of the spring is pressed on the pressing part, the other end of the spring is pressed on a nut of the adjusting bolt, The pressing part