Automatic welding clamp for liquid crystal display screen welding process

Abstract

The automatic welding clamp comprises a supporting shell, the top of the supporting shell is provided with an opening, the top of the supporting shell is connected with a table block through a bolt, a containing groove is formed in the position, close to the right side, of the top of the table block, and an upper pressing block is arranged in the position, close to the left side, in the containing groove in a sleeved mode. The top of the upper pressing block is connected with a butt joint plate through a bolt, and the left side of the butt joint plate is connected with a lifting plate through a bolt. According to the technical scheme, through mutual cooperation of an upper pressing block, a lifting plate, a butt joint column, a right-angle trapezoidal plate, a side pressing block, an air spraying hole and other components, the top and the side wall of a circuit board can be clamped in two directions at the same time, so that the circuit board can be stably clamped, position deviation is not prone to occurring in the welding process, and the welding quality is improved. The clamping efficiency and stability are improved, and air can be effectively guided during welding, so that auxiliary cooling can be performed, and the use efficiency and the working efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display welding technology, and in particular to an automatic welding fixture for liquid crystal display welding process. Background Technology

[0002] Liquid crystal displays (LCDs) rely on the anisotropy and dipole moment of liquid crystal molecules to establish a driving electric field by adjusting the phase, peak value, and frequency of the voltage signal applied to the electrodes of the LCD device, thereby achieving the display effect. The soldering process of LCD circuit boards requires the use of soldering fixtures. A liquid crystal display soldering fixture, as disclosed in application number 201620786197.0, can be bent and fixed during the soldering process, facilitating soldering and improving soldering quality.

[0003] However, the above structure cannot simultaneously clamp the top and side walls of the circuit board in both directions during use, which makes it unable to clamp stably. As a result, it is prone to positional displacement during the welding process, reducing its clamping efficiency and stability. Furthermore, it cannot effectively guide air during welding, thus failing to provide auxiliary cooling and reducing its usage efficiency and work efficiency. Therefore, we propose an automatic welding fixture for LCD screen welding process. Summary of the Invention

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an automatic welding fixture for the welding process of liquid crystal display screens. It can simultaneously clamp the top and side walls of the circuit board in both directions, thereby enabling it to be clamped stably. This makes it less prone to positional displacement during the welding process, improving its clamping efficiency and stability. Furthermore, it can effectively guide air during welding, thereby providing auxiliary cooling and improving its usage efficiency and work efficiency.

[0005] To achieve the above objectives, an automatic welding fixture for LCD screen welding processes is provided, comprising: a support housing with an open top; a platform connected to the top of the support housing by bolts; a placement groove near the right side of the top of the platform; an upper pressure block fitted into the placement groove near the left side; a mating plate connected to the top of the upper pressure block by bolts; a lifting plate connected to the left side of the mating plate by bolts; a first through groove matching the lifting plate on the top of the platform; a mating post connected to the bottom of the lifting plate through the first through groove and bolted to the support housing; a bracket connected to the bottom of the mating post by bolts; a contact wheel movably connected to the bracket via a rotating shaft and bearing; a right-angled trapezoidal plate abutting the bottom of the contact wheel; and the bottom of the right-angled trapezoidal plate slidably connected to the bottom of the inner cavity of the support housing.

[0006] According to the automatic welding fixture for the liquid crystal display welding process, a side pressure block is provided on the right side of the platform, and a movable plate is bolted to the left side of the side pressure block near the bottom. A second through slot matching the movable plate is opened on the right side of the support housing near the bottom. The left side of the movable plate passes through the second through slot and is connected to the right side wall of the right-angled trapezoidal plate.

[0007] According to the automatic welding fixture used in the liquid crystal display welding process, a cover is bolted to the left outer wall of the support housing near the bottom. An electric push rod is bolted to the left inner wall of the cover. Through holes are provided on the right inner wall of the cover and the left inner wall of the support housing. The right end of the electric push rod passes through the through hole and is connected to the left side wall of the right-angled trapezoidal plate.

[0008] According to the automatic welding fixture used in the liquid crystal display welding process, a buffer spring is sleeved on the docking column, and the top and bottom ends of the buffer spring are respectively connected to the bottom of the platform and the top of the bracket.

[0009] According to the automatic welding fixture used in the liquid crystal display welding process, the bottom of the right-angled trapezoidal plate is connected to a slider by bolts, and the bottom of the inner cavity of the support housing is provided with a groove that matches the slider.

[0010] According to the automatic welding fixture used in the liquid crystal display welding process, an air jet groove is provided on the left inner wall of the placement slot, and a groove is provided on the platform. Several evenly distributed air jet holes are connected between the right side of the groove and the air jet groove. A blower is bolted to the bottom of the platform near the left side, and the air outlet at the top of the blower is connected to the inside of the groove.

[0011] According to the automatic welding fixture used in the liquid crystal display welding process, an air guide groove is provided on the bottom of the inner cavity of the placement groove.

[0012] The above solution has at least one of the following beneficial effects: This technical solution, through the cooperation of components such as the upper pressure block, lifting plate, docking column, right-angle trapezoidal plate, side pressure block and air jet hole, enables it to simultaneously clamp the top and side walls of the circuit board in both directions, thereby enabling it to be clamped stably. This makes it less prone to positional displacement during the welding process, improving its clamping efficiency and stability. Furthermore, it can effectively guide air during welding, thereby providing auxiliary cooling and improving its usage efficiency and work efficiency.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a front perspective view of the present invention;

[0016] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;

[0017] Figure 3 for Figure 1 A magnified view of point A in the figure;

[0018] Figure 4 for Figure 1 Partial 3D view of components such as the right-angled trapezoidal plate and movable plate.

[0019] Legend:

[0020] 1. Support shell; 2. Platform; 3. First through slot; 4. Lifting plate; 5. Docking plate; 6. Upper pressure block; 7. Placement slot; 8. Side pressure block; 9. Movable plate; 10. Cover; 11. Second through slot; 12. Electric push rod; 13. Right-angled trapezoidal plate; 14. Buffer spring; 15. Docking column; 16. Contact wheel; 17. Bracket; 18. Blower; 19. Groove; 20. Air jet hole; 21. Air guide slot; 22. Air jet channel. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figures 1 to 4This utility model discloses an automatic welding fixture for LCD screen welding process, comprising a support housing 1 with an open top. A platform 2 is bolted to the top of the support housing 1. A placement groove 7 is formed near the right side of the top of the platform 2. An upper pressure block 6 is fitted inside the placement groove 7 near the left side. A mating plate 5 is bolted to the top of the upper pressure block 6. A lifting plate 4 is bolted to the left side of the mating plate 5. A first through groove 3 matching the lifting plate 4 is formed on the top of the platform 2. The bottom of the lifting plate 4 extends through the first through groove 3 into the support housing 1. A bolted docking post 15 is connected to the bottom of the docking post 15, and a bracket 17 is bolted to the bottom of the docking post 15. A buffer spring 14 is fitted on the docking post 15, and the top and bottom ends of the buffer spring 14 are respectively connected to the bottom of the platform 2 and the top of the bracket 17. A contact wheel 16 is movably connected inside the bracket 17 through a rotating shaft and bearing. A right-angled trapezoidal plate 13 is attached to the bottom of the contact wheel 16, and the bottom of the right-angled trapezoidal plate 13 is slidably connected to the bottom of the inner cavity of the support housing 1. A slider is bolted to the bottom of the right-angled trapezoidal plate 13, and a groove matching the slider is opened at the bottom of the inner cavity of the support housing 1.

[0023] A side pressure block 8 is provided on the right side of the platform 2. A movable plate 9 is bolted to the left side of the side pressure block 8 near the bottom. A second through slot 11 matching the movable plate 9 is provided on the right side of the support housing 1 near the bottom. The left side of the movable plate 9 passes through the second through slot 11 and is connected to the right side wall of the right-angled trapezoidal plate 13. A cover 10 is bolted to the left outer wall of the support housing 1 near the bottom. An electric push rod 12 is bolted to the left inner wall of the cover 10. Through holes are provided on the right inner wall of the cover 10 and the left inner wall of the support housing 1, and the right end of the electric push rod 12 passes through the through hole and is connected to the left side wall of the right-angled trapezoidal plate 13. This structure allows for simultaneous bidirectional clamping of the top and side walls of the circuit board, resulting in a stable clamping and preventing positional displacement during soldering, thus improving clamping efficiency and stability.

[0024] An air jet groove 22 is provided on the inner left side of the placement slot 7, and a groove 19 is provided on the platform 2. Several evenly distributed air jet holes 20 are connected between the right side of the groove 19 and the air jet groove 22. A blower 18 is bolted to the bottom of the platform 2 near the left side, and the air outlet at the top of the blower 18 is connected to the inside of the groove 19. An air guide groove 21 is provided on the bottom of the inner cavity of the placement slot 7. This structure allows for effective air guidance during welding, thereby providing auxiliary cooling and improving its efficiency and work efficiency.

[0025] Working Principle: In use, this technical solution first places the circuit board in the desired position via the support housing 1. Then, the electric push rod 12 extends, causing the right-angled trapezoidal plate 13 to slide to the right within the support housing 1. The right-angled trapezoidal plate 13, through the movable plate 9, moves the side pressure block 8 to the right. The inclined surface of the right-angled trapezoidal plate 13 abuts against the contact wheel 16, causing the contact wheel 16 to move the bracket 17 upward and compress the buffer spring 14. The bracket 17, through the docking column 15, lifting plate 4, and docking plate 5, moves the upper pressure block 6 upward, placing the circuit board in the placement slot 7. Then, the electric push rod 12 retracts, causing the right-angled trapezoidal plate 13 to slide to the left and right within the support housing 1. The right-angled trapezoidal plate 13, through the movable plate 9, moves the side pressure block 8 to the left, placing the circuit board on the right... The side clamping mechanism, along with the inclined surface of the right-angled trapezoidal plate 13 abutting against the contact wheel 16, causes the contact wheel 16 to drive the bracket 17 downward. The bracket 17, through the docking column 15, lifting plate 4, and docking plate 5, drives the upper pressure block 6 downward to press the top of the circuit board, enabling simultaneous bidirectional clamping of the top and side walls of the circuit board. This ensures stable clamping and prevents positional displacement during welding, improving clamping efficiency and stability. The blower 18 guides air into the groove 19 and through the jet hole 20 to the jet groove 22, allowing the air to flow out through the air guide groove 21. This effectively guides air during welding, providing auxiliary cooling and improving usage and work efficiency.

[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An automatic welding fixture for LCD screen welding process, characterized in that, include: A supporting shell (1) is provided, and the top of the supporting shell (1) is open. A platform (2) is bolted to the top of the supporting shell (1). A placement groove (7) is provided on the top of the platform (2) near the right side. An upper pressure block (6) is fitted inside the placement groove (7) near the left side. A docking plate (5) is bolted to the top of the upper pressure block (6). A lifting plate (4) is bolted to the left side of the docking plate (5). A connection is provided on the top of the platform (2) with the lifting plate (4). The bottom of the lifting plate (4) extends through the first through groove (3) into the support housing (1) and is connected to the docking column (15) by bolts. The bottom of the docking column (15) is connected to the bracket (17) by bolts. The bracket (17) is movably connected to the contact wheel (16) by a rotating shaft and bearing. The bottom of the contact wheel (16) is attached to a right-angled trapezoidal plate (13), and the bottom of the right-angled trapezoidal plate (13) is slidably connected to the bottom of the inner cavity of the support housing (1).

2. The automatic welding fixture for liquid crystal display screen welding process according to claim 1, characterized in that, A side pressure block (8) is provided on the right side of the platform (2). A movable plate (9) is bolted to the left side of the side pressure block (8) near the bottom. A second through groove (11) matching the movable plate (9) is opened on the right side of the support housing (1) near the bottom. The left side of the movable plate (9) passes through the second through groove (11) and is connected to the right side wall of the right-angled trapezoidal plate (13).

3. The automatic welding fixture for liquid crystal display screen welding process according to claim 1, characterized in that, The outer left side wall of the support housing (1) is connected to a cover (10) by bolts near the bottom. An electric push rod (12) is connected to the inner left side wall of the cover (10) by bolts. Through holes are provided on the inner right side wall of the cover (10) and the inner left side wall of the support housing (1). The right end of the electric push rod (12) passes through the through hole and is connected to the left side wall of the right-angled trapezoidal plate (13).

4. The automatic welding fixture for liquid crystal display screen welding process according to claim 1, characterized in that, A buffer spring (14) is fitted on the docking column (15), and the top and bottom ends of the buffer spring (14) are respectively connected to the bottom of the platform (2) and the top of the bracket (17).

5. The automatic welding fixture for liquid crystal display screen welding process according to claim 1, characterized in that, The bottom of the right-angled trapezoidal plate (13) is connected to a slider by bolts, and the bottom of the inner cavity of the support housing (1) is provided with a groove that matches the slider.

6. The automatic welding fixture for liquid crystal display screen welding process according to claim 1, characterized in that, An air jet groove (22) is provided on the inner left side of the placement slot (7), and a groove (19) is provided on the platform (2). Several evenly distributed air jet holes (20) are connected between the right side of the groove (19) and the air jet groove (22). A blower (18) is bolted to the bottom of the platform (2) near the left side, and the air outlet at the top of the blower (18) is connected to the inside of the groove (19).

7. The automatic welding fixture for liquid crystal display screen welding process according to claim 1, characterized in that, An air guide groove (21) is provided on the bottom of the inner cavity of the placement groove (7).

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