An auxiliary welding tool for an electric energy meter

Abstract

The utility model discloses an auxiliary welding frock of electric energy meter belongs to electric energy meter manufacturing technical field, including the base body for providing installation reference and stable support for all parts, the top welding of base body has a plurality of first support column for positioning, the top of a plurality of first support column all is equipped with the post head for forming rigid positioning constraint and limiting horizontal direction's displacement, the top of base body is equipped with a plurality of second support column for providing electric energy meter auxiliary welding bearing capacity, a plurality of first support column and second support column all are perpendicular fixed on the surface of base body, the surface of base body is provided with the protection groove for forming physical isolation space and avoiding component, and this frock makes PCB board no obvious shaking, and left and right activity space control is in the minimum range, and operator need not repeatedly aligning, and directly can carry out soldering on tin, and single-process time is greatly shortened, and welding speed and efficiency are significantly improved.

Description

Technical Field

[0001] This utility model belongs to the field of electricity meter manufacturing technology, and in particular, it is an auxiliary welding fixture for electricity meters. Background Technology

[0002] As technology advances, electricity meters require more diverse functions, necessitating the design of different PCB boards for each function. Current soldering methods involve supporting the workpiece at one end of the PCB board while leaving the other end unsupported. This simple top-to-bottom support and large lateral movement space negatively impact soldering speed and efficiency.

[0003] A search revealed a Chinese patent document (authorization announcement number CN203092018U), which discloses a welding fixture for an electricity meter LCD screen. The fixture includes a panel corresponding to the electricity meter circuit board. Four positioning posts of the same height are fixedly installed at the four corners of the panel, corresponding to positioning holes on the circuit board. A positioning pin matching a positioning hole on the circuit board is fixedly installed at the center of the top of each of the four positioning posts. A positioning groove for the LCD screen is provided on the panel corresponding to the welding point of the LCD screen on the circuit board. Half of the positioning groove is open, and a foam board is fixedly connected to the half of the non-open groove inside. This welding fixture facilitates the welding and installation of the LCD screen, improves welding accuracy, eliminates the need for repeated welding, saves labor, increases production speed, and reduces production costs. While the device meets basic usage requirements, its simple vertical support and large lateral movement space can affect welding speed and result in low welding efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary welding fixture for electricity meters to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary welding fixture for an electricity meter, comprising a base body for providing installation reference and stable support for all components, wherein a plurality of first support columns for positioning are welded to the top of the base body; Each of the first support columns is equipped with a column head at its top to form a rigid positioning constraint and limit horizontal displacement. The top of the base body is equipped with a plurality of second support columns to provide auxiliary welding load-bearing capacity for the energy meter. The plurality of first support columns and second support columns are vertically fixed to the surface of the base body. The surface of the base body is provided with protective grooves to form a physical isolation space and to avoid components.

[0006] Preferably, a junction box is provided inside the protective groove.

[0007] Preferably, a PCB board body for mechanical positioning and electrical connection is provided on the upper part of the base body, and the surface of the PCB board body is provided with a plurality of fixing holes for tight fit with the column head.

[0008] Preferably, a first current transformer and a second current transformer are disposed below the PCB board body, and the top of the first current transformer and the second current transformer are both connected to terminals for soldering.

[0009] Preferably, the surface of the PCB board body is provided with a plurality of terminal holes for forming a dual connection of mechanical fixation and electrical conduction, and the wiring terminals completely penetrate the surface of the terminal holes.

[0010] Preferably, the fixing hole corresponds to the pin of the wiring terminal.

[0011] Preferably, the junction box contains an integrated component of multiple first current transformers and second current transformers.

[0012] Compared with the prior art, the technical effects and advantages of this utility model are as follows: This auxiliary welding fixture for electricity meters benefits from the structure of its support columns and column heads. The column head at the top of the first support column passes through a fixing hole to form a rigid positioning, restricting the lateral horizontal displacement of the PCB board. The second support column provides auxiliary support from below, working together with the column head to achieve stable vertical load-bearing on the PCB board. Compared to traditional auxiliary welding fixtures for electricity meters, which have weaker fixing effects, this structure ensures that the PCB board does not wobble significantly, and the lateral movement space is controlled to a minimum. Operators do not need to repeatedly align the components and can directly perform soldering, greatly shortening the single-process time and significantly improving welding speed and efficiency.

[0013] This auxiliary welding fixture for electricity meters, thanks to the structure of its terminals and terminal holes, ensures precise through-fitting between the terminals and holes. Combined with the positioning constraints of the fixing holes and the post head, this guarantees a completely coaxial welding interface. This structure reduces welding deviations, lowers rework rates, and indirectly improves overall production efficiency. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the PCB board body removed from the present invention. Figure 3 This is a schematic diagram of the structure of the present invention with the PCB board body removed; Figure 4 This is a top view of the present invention without the PCB board body. Figure 5 This utility model Figure 1 Enlarged view of point A in the middle.

[0016] Explanation of reference numerals in the attached figures: In the figure: 1. Base body; 101. First support column; 102. Column head; 103. Second support column; 104. First current transformer; 105. Wiring terminal; 106. Second current transformer; 2. Protective groove; 201. Junction box; 3. PCB board body; 301. Fixing hole; 302. Terminal hole. Detailed Implementation

[0017] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0018] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0019] like Figures 1 to 5 The auxiliary welding fixture for an electricity meter shown includes a base body 1 for providing installation reference and stable support for all components, and a plurality of first support columns 101 for positioning are welded to the top of the base body 1. Each of the first support columns 101 has a column head 102 installed on its top to form a rigid positioning constraint and limit horizontal displacement. The base body 1 has multiple second support columns 103 installed on its top to provide auxiliary welding load-bearing capacity for the energy meter. Both the first and second support columns 101 and 103 are vertically fixed to the surface of the base body 1. The surface of the base body 1 has a protective groove 2 to form a physical isolation space and avoid components. A junction box 201 is housed inside the protective groove 2. The base body 1 serves as the overall installation reference, and the vertically fixed first and second support columns 101 and 103 form a three-dimensional support frame: the column head 102 at the top of the first support column 101 is a pre-set positioning reference, and the second support columns 103 form an auxiliary support surface through equal-height design. The protective groove 2 forms a pre-positioning constraint on the junction box 201 through contour matching, preventing the junction box 201 from shifting during subsequent operations.

[0020] A PCB board body 3 for mechanical positioning and electrical connection is provided on the upper part of the base body 1. The surface of the PCB board body 3 is provided with a plurality of fixing holes 301 for tight fit with the column head 102. A first current transformer 104 and a second current transformer 106 are provided on the lower part of the PCB board body 3. The top of the first current transformer 104 and the second current transformer 106 are connected to the terminals 105 for soldering. The surface of the PCB board body 3 is provided with a plurality of terminal holes 302 for forming a dual connection of mechanical fixation and electrical conduction. The terminals 105 completely penetrate the surface of the terminal holes 302. The fixing holes 301 correspond to the pins of the terminals 105. The first current transformer 104, the second current transformer 106 and the terminals 105 on their tops in the junction box 201 are all in a preset soldering position. The fixing holes 301 of the PCB board body 3 are aligned with the column head 102 on the top of the first support column 101 and inserted vertically. The column head 102 passes through the fixing holes 301 to form a rigid positioning, restricting the horizontal displacement and rotation of the PCB board. Meanwhile, the second support column 103 provides auxiliary support to the non-positioning area of ​​the PCB board, preventing the board from sagging due to its own weight and ensuring the relative positional accuracy between the PCB board and the terminal block 105. During the PCB board lowering process, the terminal blocks 105 at the top of the first current transformer 104 and the second current transformer 106 automatically pass through the terminal holes 302 on the surface of the PCB board, forming a dual connection base of mechanical fixation and electrical conduction. At this time, the precise fit between the fixing hole 301 and the column head 102 (gap ≤ 0.05mm) ensures that the terminal block 105 and the terminal hole 302 are completely coaxial, providing a precise interface for soldering. The terminal blocks 105 passing through the terminal holes 302 can then be soldered. The junction box 201 contains multiple integrated components of the first current transformer 104 and the second current transformer 106.

[0021] Working principle This auxiliary welding fixture for electricity meters, when in use, uses the base body 1 as a reference, with the first support column 101 and the second support column 103 forming a support frame at its top. During operation, the junction box 201 is first placed into the protective groove 2, which restricts its movement and provides isolation. Then, the fixing hole 301 of the PCB board body 3 is aligned with the column head 102 at the top of the first support column 101 and inserted. The column head 102 passes through the fixing hole 301 to form a rigid position, and the second support column 103 provides additional support to prevent the PCB board from sagging. At this time, the terminals 105 at the top of the first current transformer 104 and the second current transformer 106 pass through the terminal holes 302 on the PCB board. The fixing hole 301 and the pins of the terminal 105 correspond to ensure coaxiality, allowing for soldering. Precise soldering is achieved through the coordinated operation of all components.

[0022] It should be noted that in this article, relational terms such as one and two are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary welding fixture for an electricity meter, comprising a base body (1) for providing installation reference and stable support for all components, characterized in that: The top of the base body (1) is welded with a plurality of first support columns (101) for positioning. The top of each of the first support columns (101) is equipped with a column head (102) for forming a rigid positioning constraint and limiting horizontal displacement. The top of the base body (1) is equipped with a plurality of second support columns (103) for providing auxiliary welding bearing capacity for the power meter. The plurality of first support columns (101) and second support columns (103) are vertically fixed to the surface of the base body (1). The surface of the base body (1) is provided with a protective groove (2) for forming a physical isolation space and avoiding components.

2. The auxiliary welding fixture for an electricity meter according to claim 1, characterized in that: A junction box (201) is provided inside the protective groove (2).

3. The auxiliary welding fixture for an electricity meter according to claim 1, characterized in that: The base body (1) is provided with a PCB board body (3) for mechanical positioning and electrical connection. The surface of the PCB board body (3) is provided with a plurality of fixing holes (301) for tight fit with the column head (102).

4. The auxiliary welding fixture for an electricity meter according to claim 3, characterized in that: The first current transformer (104) and the second current transformer (106) are provided below the PCB board body (3). The top of the first current transformer (104) and the second current transformer (106) are connected to the terminals (105) for soldering.

5. The auxiliary welding fixture for an electricity meter according to claim 4, characterized in that: The surface of the PCB board body (3) is provided with a plurality of terminal holes (302) for forming a dual connection of mechanical fixation and electrical conduction, and the wiring terminal (105) completely penetrates the surface of the terminal hole (302).

6. The auxiliary welding fixture for an electricity meter according to claim 5, characterized in that: The fixing hole (301) corresponds to the pin of the wiring terminal (105).

7. The auxiliary welding fixture for an electricity meter according to claim 2, characterized in that: The junction box (201) is internally equipped with an integrated component of multiple first current transformers (104) and second current transformers (106).

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