Auxiliary welding tool for liquid crystal

Abstract

The utility model belongs to the technical field of power distribution equipment manufacturing, and discloses an auxiliary welding tool for liquid crystal, the auxiliary welding tool comprises a tool body and a limiting piece, the tool body is provided with a supporting surface and a containing groove, the supporting surface is used for supporting a circuit board, the containing groove is used for containing the display liquid crystal, and the limiting piece is movably installed on the tool body. The limiting piece can abut against the display liquid crystal. A first hand buckling groove and a second hand buckling groove are formed in the two oppositely-arranged side walls of the tool body, and the first hand buckling groove communicates with the containing groove. According to the auxiliary welding tool, the problem that welding of the display liquid crystal is skew can be well solved, reworking caused by welding skew is avoided, the product yield is increased, the auxiliary welding tool is convenient to use, and an operator can conveniently take the circuit board and the display liquid crystal.

Description

Technical Field

[0001] This utility model relates to the field of power distribution equipment manufacturing technology, and in particular to an auxiliary welding fixture for liquid crystals. Background Technology

[0002] During the manufacturing process of electricity meters, some meters do not have an LCD bracket to meet actual usage requirements. However, during actual assembly, the LCD display requires a certain soldering height. Without the support of the LCD bracket, it is easy for the soldering to become tilted (i.e., the upper surface of the LCD display is not parallel to the circuit board and has an angle). When the electricity meter is powered on, the tilted LCD display creates a sense of distance when viewed through the meter's transparent window, affecting the customer's viewing experience. In this case, the solder on the LCD pins needs to be melted, the LCD position readjusted, and re-soldered. Furthermore, because the LCD pins are relatively long and only have pins on one side, parallelism is difficult to control. During soldering, the LCD needs to be placed on the circuit board and then inverted on the workbench, with the circuit board supported by a bakelite block. After soldering, some LCD pins may not be parallel to the circuit board, requiring rework. Moreover, over time, the bakelite block will wear down, resulting in slight differences in the soldered LCD displays. In addition, bakelite blocks are relatively inconvenient to carry, and it is not easy to handle circuit boards and LCD displays. Soldering is also inconvenient, which affects the production capacity of electricity meters. Utility Model Content

[0003] The purpose of this invention is to provide an auxiliary welding fixture for liquid crystal displays. This auxiliary welding fixture can effectively solve the problem of misaligned welding of liquid crystal displays, eliminating rework caused by misaligned welding, improving product yield, and is easy to use, allowing operators to easily handle circuit boards and liquid crystal displays.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] This utility model discloses an auxiliary welding fixture for liquid crystal displays, comprising: a fixture body having a supporting surface and a receiving groove, the supporting surface being used to support a circuit board, and the receiving groove being used to receive a display liquid crystal, the display liquid crystal being used for an electricity meter or a data acquisition terminal; and a limiting member movably mounted on the fixture body, the limiting member being able to abut against the display liquid crystal; wherein: the fixture body has a first handle groove and a second handle groove on two oppositely arranged side walls, the first handle groove communicating with the receiving groove.

[0006] In some embodiments, the auxiliary welding fixture for liquid crystals further includes a positioning component, which is mounted on the fixture body and used to fix the limiting member to the fixture body.

[0007] In some specific embodiments, the tooling body is provided with a limiting groove communicating with the receiving groove, the limiting member is slidably installed in the limiting groove, and the positioning component is used to fix the limiting member in the limiting groove.

[0008] In some more specific embodiments, the positioning component includes a magnetic element disposed on the bottom wall of the limiting groove, the magnetic element being capable of attracting the limiting element.

[0009] In some more specific embodiments, the tooling body further includes a mounting groove that communicates with the limiting groove, and the positioning component further includes a clamping member that is fixed in the mounting groove and is used to limit the sliding stroke of the limiting member.

[0010] In some optional embodiments, the clamping member is provided with a first groove, and the limiting member is provided with a second groove corresponding to the first groove.

[0011] In some more specific embodiments, the limiting member has an L-shaped structure and includes a horizontal portion and a vertical portion, wherein the horizontal portion is slidably installed in the limiting groove.

[0012] In some embodiments, the limiting members are arranged in pairs, and the paired limiting members can abut against two oppositely arranged sidewalls of the display liquid crystal.

[0013] In some embodiments, the support surface is provided with positioning posts, which can cooperate with positioning holes on the circuit board.

[0014] In some embodiments, the support surface is provided with a plurality of clearance grooves, which are used to avoid circuit components on the circuit board.

[0015] The auxiliary welding fixture for LCDs of this invention offers the following advantages: During the welding process, the LCD is housed within a receiving groove and restrained on the fixture body by limiting components, preventing the LCD from tilting relative to the fixture body. This effectively solves the problem of LCD welding misalignment, eliminating rework due to welding misalignment and improving product yield. Furthermore, the fixture body is equipped with a first and second hand slot, allowing operators to grip the two opposing sidewalls of the circuit board and remove it from the fixture body. This makes the auxiliary welding fixture convenient to use, allowing operators to easily handle the circuit board and LCD.

[0016] 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

[0017] Figure 1 This is a schematic diagram of the structure of an auxiliary welding fixture for liquid crystal according to an embodiment of the present invention;

[0018] Figure 2 This is an exploded view of an auxiliary welding fixture for liquid crystal according to an embodiment of the present invention;

[0019] Figure 3 This is a cross-sectional view of an auxiliary welding fixture for liquid crystals according to an embodiment of the present invention.

[0020] Figure label:

[0021] 100. Auxiliary welding fixture; 110. Fixture body; 111. Receiving groove; 112. Support surface; 113. First handle groove; 114. Second handle groove; 115. Limiting groove; 116. Mounting groove; 117. Positioning post; 118. Clearance groove; 120. Limiting component; 121. Horizontal part; 1211. Second groove; 122. Vertical part; 130. Positioning assembly; 131. Magnetic component; 132. Clamping component; 1321. First groove;

[0022] 200. Circuit board; 210. Solder;

[0023] 300, LCD display; 310, pins. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to the present invention are shown in the drawings, not the entire structure. In the description of the present invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances. In the description of this embodiment, the terms "upper," "lower," "left," "right," "front," and "rear," etc., are based on the orientation or positional relationship shown in the accompanying drawings and are only for ease of description and simplification of operation, not to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first" and "second" are merely used to distinguish between descriptions and have no special meaning.

[0025] This utility model discloses an auxiliary welding fixture for liquid crystals (hereinafter referred to as auxiliary welding fixture 100 for ease of description), see reference. Figures 1-3 As shown, the auxiliary welding fixture 100 includes a fixture body 110 and a limiting member 120. The fixture body 110 has a support surface 112 and a receiving groove 111. The support surface 112 supports the circuit board 200, and the receiving groove 111 accommodates the display liquid crystal 300. The display liquid crystal 300 is used for an energy meter or a data acquisition terminal, which can be an ammeter, voltmeter, or other test instrument for acquiring circuit signals. The limiting member 120 is movably mounted on the fixture body 110 and can abut against the display liquid crystal 300. The fixture body 110 has a first hand-holding groove 113 and a second hand-holding groove 114 on two opposite side walls. The first hand-holding groove 113 communicates with the receiving groove 111. Understandably, in actual operation, after placing the display LCD 300 (with pins 310 of the display LCD 300 inserted into solder holes on the circuit board 200) on the circuit board 200, it is inverted and placed on the fixture body 110, so that the circuit board 200 abuts against the support surface 112, the display LCD 300 is accommodated in the receiving groove 111, and the surface of the display LCD 300 is in contact with the bottom wall of the receiving groove 111. Then, the limiting member 120 is pushed to move relative to the fixture body 110, so that the limiting member 120 abuts against the side wall of the display LCD 300 to lock the display LCD 300 (of course, it is also possible that the display LCD 300 is accommodated in the receiving groove 111). Within the receiving groove 111, the surface of the display liquid crystal 300 is spaced apart from the bottom of the receiving groove 111. After the limiting member 120 is pushed to move, the limiting member 120 stops against the surface of the display liquid crystal 300 facing the bottom of the receiving groove 111 to restrict it. Finally, the solder 210 on the pins 310 of the display liquid crystal 300 can be soldered. After the soldering is completed, the limiting member 120 is pulled open to release the display liquid crystal 300. The operator can use the first hand groove 113 and the second hand groove 114 to clamp the two opposite side walls of the circuit board 200 and remove it from the tooling body 110, thereby completing the soldering of the display liquid crystal 300.

[0026] In summary, because the LCD 300 is housed within the receiving groove 111 and restrained on the fixture body 110 by the limiting member 120 during the welding process, the LCD 300 is prevented from tilting relative to the fixture body 110, thus effectively solving the problem of welding misalignment of the LCD 300 and eliminating rework due to welding misalignment, thereby improving product yield. Since the fixture body 110 is equipped with a first handle groove 113 and a second handle groove 114, the operator can use the first handle groove 113 and the second handle groove 114 to clamp the two opposing side walls of the circuit board 200 and remove it from the fixture body 110. This makes it convenient for the welding operator to use the LCD 300 of the energy meter and data acquisition terminal, allowing the operator to easily handle the circuit board 200 and the LCD 300.

[0027] refer to Figure 2 and Figure 3 As shown, the auxiliary welding fixture 100 also includes a positioning component 130, which is mounted on the fixture body 110 and used to fix the limiting member 120 to the fixture body 110. It can be understood that in actual operation, the positioning component 130 fixes the limiting member 120, preventing the display liquid crystal 300 from tilting due to the shaking of the limiting member 120 when it abuts against the side wall of the display liquid crystal 300 during welding, thereby further improving the welding yield.

[0028] Optional, see reference Figure 2 As shown, the tooling body 110 is provided with a limiting groove 115 communicating with the receiving groove 111. The limiting member 120 is slidably installed in the limiting groove 115, and the positioning component 130 is used to fix the limiting member 120 in the limiting groove 115. It can be understood that the limiting groove 115 on the tooling body 110 restricts the sliding direction of the limiting member 120. In actual operation, when the operator pushes the limiting member 120, the limiting member 120 can only slide in the direction extending the limiting groove 115, avoiding the phenomenon of the display liquid crystal 300 being skewed due to the skewness of the limiting member 120, thereby further improving the welding yield. Placing the positioning component 130 in the limiting groove 115 can effectively fix the limiting member 120, ensuring the limiting effect of the limiting member 120 on the display liquid crystal 300.

[0029] Optionally, the positioning component 130 includes a magnetic element 131 disposed on the bottom wall of the limiting groove 115, which can attract the limiting component 120. It is understood that during actual operation, when the circuit board 200 and the display liquid crystal 300 are placed on the tooling body 110 and the limiting component 120 is pushed to slide within the limiting groove 115, when the limiting component 120 abuts against the side wall of the display liquid crystal 300, the magnetic element 131 can attract the limiting component 120 to prevent it from shaking, thereby preventing the display liquid crystal 300 from tilting due to the shaking of the limiting component 120, thus further improving the soldering yield. Of course, in other embodiments of this utility model, the positioning component 130 can also be a positioning bead, with a positioning groove on the limiting component 120 that cooperates with the positioning bead. When the limiting component 120 slides to a designated position, the positioning bead can be engaged in the positioning groove to fix the limiting component 120. When it is necessary to slide the limit member 120 again, simply lift the limit member 120 a short distance so that the positioning post 117 is disengaged from the positioning groove.

[0030] Further optional, see reference Figure 2 As shown, the tooling body 110 also includes a mounting groove 116, which communicates with the limiting groove 115. The positioning component 130 also includes a clamping member 132, which is fixed in the mounting groove 116 and is used to limit the sliding stroke of the limiting member 120. It is understandable that in actual operation, if the limiting member 120 extends too far into the limiting groove 115, it will exert a large force on the side wall of the display liquid crystal 300, increasing the risk of the display liquid crystal 300 being damaged. Conversely, when releasing the locking of the display liquid crystal 300, if the stroke of the limiting member 120 is too large, it will disengage from the limiting groove 115 and may be lost. In this embodiment, the positioning component 130 further includes a clamping member 132 for limiting the sliding stroke of the limiting member 120. During actual operation, when the limiting member 120 is pushed inward, due to the limiting effect of the clamping member 132, when the limiting member 120 stops against the side wall of the display liquid crystal 300, further pushing of the limiting member 120 will not cause it to continue to squeeze the display liquid crystal 300, thus preventing the display liquid crystal 300 from being damaged by the limiting member 120. When the limiting member 120 is pulled outward, due to the limiting effect of the clamping member 132, the limiting member 120 is prevented from dislodging from the limiting groove 115, thus preventing the limiting member 120 from being lost.

[0031] Optionally, the clamping member 132 is provided with a first groove 1321, and the limiting member 120 is provided with a second groove 1211 corresponding to the first groove 1321. Understandably, during actual operation, when the limiting member 120 is pushed inward, when one sidewall of the first groove 1321 along its length direction abuts against one sidewall of the clamping member 132 along its width direction, the limiting member 120 cannot continue to move. When the limiting member 120 is pulled outward, when the other sidewall of the first groove 1321 along its length direction abuts against the other sidewall of the clamping member 132 along its width direction, the limiting member 120 cannot continue to move. This achieves the limitation of the travel of the limiting member 120 by the clamping member 132.

[0032] Of course, in other embodiments of this utility model, the clamping member 132 may be provided with a groove, and the limiting member 120 may be provided with a protrusion, so that the protrusion abuts against the two side walls of the groove along its length direction to achieve the limiting.

[0033] refer to Figure 2 As shown, the limiting member 120 has an L-shaped structure and includes a horizontal portion 121 and a vertical portion 122. The horizontal portion 121 is slidably installed within the limiting groove 115. It is understood that the horizontal portion 121 is used to limit the display liquid crystal 300, while the vertical portion 122 facilitates user operation. Of course, in other embodiments of this utility model, the limiting member 120 can also be a straight structure or other structures with handles, and is not limited to the L-shaped structure of this embodiment.

[0034] refer to Figure 1 As shown, the limiting members 120 are arranged in pairs, and the paired limiting members 120 can abut against the two oppositely arranged side walls of the display liquid crystal 300. It can be understood that by setting the paired limiting members 120 against the two oppositely arranged side walls of the display liquid crystal 300, it is beneficial to enhance the restraining effect on the display liquid crystal 300, thereby further preventing the display liquid crystal 300 from tilting.

[0035] refer to Figure 1 As shown, a positioning post 117 is provided on the support surface 112, and the positioning post 117 can cooperate with the positioning hole on the circuit board 200. It can be understood that when the circuit board 200 is installed on the support surface 112, the positioning post 117 can be inserted into the positioning hole, which can better prevent the circuit board 200 from shaking during the soldering process, thereby improving the soldering yield.

[0036] refer to Figure 1As shown, the support surface 112 is provided with multiple clearance grooves 118, which are used to avoid circuit components on the circuit board 200. It can be understood that the circuit board 200 usually has protruding circuit components such as inductors and resistors. Providing clearance grooves 118 on the support surface 112 can prevent the protruding circuit components on the circuit board 200 from being squeezed by the tooling body 110, thereby reducing the probability of damage to the circuit board 200 during the soldering process.

[0037] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An auxiliary welding fixture for liquid crystals, characterized in that, include: The tooling body (110) has a support surface (112) and a receiving groove (111). The support surface (112) is used to support the circuit board (200), and the receiving groove (111) is used to receive the display liquid crystal (300). The display liquid crystal (300) is used for an energy meter or a data acquisition terminal. A limiting member (120) is movably mounted on the tooling body (110) and can abut against the display liquid crystal (300); wherein: The tool body (110) has a first hand groove (113) and a second hand groove (114) on two opposite side walls, and the first hand groove (113) is connected to the receiving groove (111).

2. The auxiliary welding fixture for liquid crystals according to claim 1, characterized in that, It also includes a positioning component (130), which is mounted on the tooling body (110) and is used to fix the limiting member (120) to the tooling body (110).

3. The auxiliary welding fixture for liquid crystals according to claim 2, characterized in that, The tooling body (110) is provided with a limiting groove (115) communicating with the receiving groove (111). The limiting member (120) is slidably installed in the limiting groove (115). The positioning component (130) is used to fix the limiting member (120) in the limiting groove (115).

4. The auxiliary welding fixture for liquid crystals according to claim 3, characterized in that, The positioning component (130) includes a magnetic element (131) disposed on the bottom wall of the limiting groove (115), the magnetic element (131) being able to attract the limiting element (120).

5. The auxiliary welding fixture for liquid crystals according to claim 3, characterized in that, The tooling body (110) also includes a mounting groove (116), which is connected to the limiting groove (115). The positioning component (130) also includes a clamping member (132), which is fixed in the mounting groove (116) and is used to limit the sliding stroke of the limiting member (120).

6. The auxiliary welding fixture for liquid crystals according to claim 5, characterized in that, The clamping member (132) is provided with a first groove (1321), and the limiting member (120) is provided with a second groove (1211) corresponding to the first groove (1321).

7. The auxiliary welding fixture for liquid crystals according to claim 3, characterized in that, The limiting member (120) has an L-shaped structure and includes a horizontal part (121) and a vertical part (122). The horizontal part (121) is slidably installed in the limiting groove (115).

8. The auxiliary welding fixture for liquid crystals according to any one of claims 1-7, characterized in that, The limiting members (120) are arranged in pairs, and the paired limiting members (120) can abut against the two oppositely arranged side walls of the display liquid crystal (300).

9. The auxiliary welding fixture for liquid crystals according to any one of claims 1-7, characterized in that, The support surface (112) is provided with a positioning post (117), which can cooperate with the positioning hole on the circuit board (200).

10. The auxiliary welding fixture for liquid crystals according to any one of claims 1-7, characterized in that, The support surface (112) is provided with a plurality of clearance grooves (118), which are used to avoid circuit elements on the circuit board (200).

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