Three-phase intelligent electric energy meter mutual inductor spot welding clamp

Abstract

The utility model discloses a three-phase intelligent electric energy meter mutual inductor spot welding clamp, which belongs to the technical field of electric power equipment, and comprises a bottom plate, a fixing assembly, a distance adjusting assembly and a welding rod limiting stopper, the side wall of the bottom plate is provided with a through groove, the fixing assembly is installed on the side wall of the bottom plate, the fixing assembly is used for fixing a mutual inductor and a wiring terminal, and the distance adjusting assembly is used for adjusting the distance between the distance adjusting assembly and the welding rod limiting stopper. The distance adjusting assembly is installed on the side wall of the bottom plate and arranged below the fixing assembly, the distance adjusting assembly is used for adjusting the distance between the mutual inductor and the wiring terminal, and the multiple welding rod limiting stoppers are installed on the fixing assembly and used for fixing welding rods. The problems that in the prior art, due to the fact that manual feeding and fixed welding modes are adopted, time cost generated by welding is high, and efficiency is low are solved. The device has remarkable advantages in the aspects of suppressing magnetic field interference, improving welding efficiency, guaranteeing process precision, reducing comprehensive cost and the like, and an efficient and stable technical solution is provided for large-scale production.

Description

TECHNICAL FIELD

[0001] The utility model relates to power equipment technical field, concretely relates to a three -phase intelligent electric energy meter mutual -inductor spot welding fixture. BACKGROUND

[0002] The mutual -inductor is a kind of special transformer for measuring or protecting in power system, mainly for converting high voltage or large current into standardized low voltage or small current in proportion, to facilitate the safe measurement and control of instrument, electric energy meter and other equipment. In intelligent electric energy meter, the welding quality of mutual -inductor directly influences the accuracy of electric energy measurement and the long-term stability of equipment.

[0003] However, in the process of direct current spot welding, high current output can generate strong magnetic field around, and magnetic field force can cause electrical components to shift. Electric energy meter is a highly precise measuring instrument, and the installation position and relative error of internal components have strict technical requirements. If the components are offset due to magnetic field interference during welding, the measurement accuracy and reliability of electric energy meter will be affected. In the prior art, to avoid this adverse effect, manual feeding and fixed welding are generally used, which also leads to high time cost of welding and low efficiency.

[0004] Therefore, how to provide a three -phase intelligent electric energy meter mutual -inductor spot welding fixture to solve the defects existing in the prior art is a technical problem to be solved by the person skilled in the art. CONTENT OF THE UTILITY MODEL

[0005] Therefore, the utility model provides a three -phase intelligent electric energy meter mutual -inductor spot welding fixture to solve the problem of high time cost of welding and low efficiency caused by manual feeding and fixed welding in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0007] The utility model discloses a three -phase intelligent electric energy meter mutual -inductor spot welding fixture, including:

[0008] The bottom plate is provided with a through slot on the side wall;

[0009] The fixing assembly is installed on the side wall of the bottom plate, and the fixing assembly is used for fixing the mutual -inductor and the terminal;

[0010] The distance adjusting assembly is installed on the side wall of the bottom plate and is arranged below the fixing assembly, and the distance adjusting assembly is used for adjusting the distance between the mutual -inductor and the terminal;

[0011] A plurality of electrode limiters are installed on the fixing assembly, and the electrode limiter is used for fixing the electrode.

[0012] Furthermore, the fixing assembly includes:

[0013] A first fixing plate is mounted on the side wall of the bottom plate and is arranged above the through slot, and a plurality of fixing holes for fixing the mutual inductor are opened on the side wall of the first fixing plate;

[0014] a second fixing plate, mounted on the side wall of the bottom plate and disposed below the through slot, wherein the side wall of the second fixing plate is provided with a plurality of first fixing half slots for fixing the connection terminals;

[0015] A shaft block, mounted on a side wall of the base plate;

[0016] a first transverse pressure bar rotatably connected to the top wall of the shaft block, and a plurality of pressure blocks are installed on the side walls of the first transverse pressure bar;

[0017] A second transverse pressure strip is rotatably connected to the bottom wall of the shaft block, and a plurality of second fixed half grooves are formed on the side wall of the second transverse pressure strip to match the first fixed half grooves;

[0018] A locking block is installed between the first transverse pressure strip and the second transverse pressure strip, and a locking hole is opened on the side wall of the locking block;

[0019] A fixing block, mounted on a side wall of the base plate;

[0020] An adjusting nut is threadedly connected to the side wall of the fixing block, and the adjusting nut passes through the fixing block and is inserted into the locking hole.

[0021] Furthermore, the distance adjustment component includes:

[0022] a sliding post, threadedly connected to the lower side of the second fixing plate;

[0023] A support plate, slidably connected to the lower side of the second fixing plate via a sliding column;

[0024] The eccentric regulating wheel is symmetrically arranged, rotatably connected to the side wall of the bottom plate, and is arranged below the supporting plate.

[0025] Furthermore, the welding rod stopper is installed on the side wall of the second fixing plate, and a plurality of the welding rod stoppers are arranged at intervals.

[0026] Furthermore, a handle slot is provided on the circumferential side wall of the eccentric adjusting wheel.

[0027] Furthermore, the ratio of the number of the pressing blocks to the number of the first fixed half slots is 1:2.

[0028] The utility model has the following advantages:

[0029] The utility model discloses a fixed assembly is set up, makes the mutual inductor and wiring terminal relative position keep stable in the welding process, avoids the strong magnetic field effect and leads to component displacement, thereby guaranteeing the accuracy of the welding position, improve the measurement precision and reliability of electric energy meter.

[0030] Through setting distance adjusting assembly, the mutual inductor and wiring terminal between the spacing can be accurately adjusted, avoid the error produced by manual operation, improve the welding consistency, simultaneously, still can satisfy the welding demand of different model electric energy meter, improve the versatility and adaptability of clamp.

[0031] Through setting fixed assembly and distance adjusting assembly, realize the quick positioning and fixed of mutual inductor and wiring terminal, compared with traditional manual fixed welding mode, the clamp of the utility model discloses quick clamping and accurate positioning through mechanical structure, reduces manual adjustment time, reduces the labor intensity, improves product consistency.

[0032] Through setting electrode positioner, the position of electrode can be fixed, avoids the electrode deviation in the welding process, guarantees the welding quality stability. DRAWINGS

[0033] In order to more clearly illustrate the embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawing needed to be used in the embodiment or the prior art description. Obviously, the drawing in the following description is only exemplary, and for those skilled in the art, other implementation drawings can be obtained without creative labor on the basis of the provided drawings.

[0034] The structure, proportion, size and the like shown in the specification are only used to cooperate with the content disclosed in the specification, for understanding and reading by those skilled in the art, and are not used to limit the limiting conditions that can be implemented by the utility model, so they do not have the technical essence, any modification of structure, change of proportion relationship or adjustment of size, as long as it does not affect the effect and purpose that can be produced by the utility model, should still fall within the scope covered by the technical content disclosed by the utility model.

[0035] Figure 1 The utility model provides three -phase intelligent electric energy meter mutual inductor spot welding fixture front view;

[0036] Figure 2 The utility model provides three -phase intelligent electric energy meter mutual inductor spot welding fixture perspective drawing;

[0037] Figure 3 The utility model provides fixed assembly perspective drawing;

[0038] Figure 4 The utility model provides first fixed plate and first horizontal pressure bar perspective drawing;

[0039] Figure 5 The second fixed plate and the second transverse pressing strip of the utility model provide a perspective view;

[0040] Figure 6 The first fixed plate of the utility model provides a perspective view;

[0041] Figure 7 The briquetting of the utility model provides a perspective view;

[0042] Figure 8 The three-phase intelligent electric energy meter mutual inductor spot welding fixture of the utility model provides a bottom view;

[0043] Figure 9 The three-phase intelligent electric energy meter mutual inductor spot welding fixture of the utility model provides a sectional view.

[0044] In the drawing: 1 bottom plate; 2 through slot; 3 fixed assembly; 31 first fixed plate; 32 fixed hole; 33 second fixed plate; 34 first fixed half slot; 35 shaft block; 36 first transverse pressing strip; 37 briquetting; 38 second transverse pressing strip; 39 second fixed half slot; 310 locking block; 311 locking hole; 312 fixed block; 313 adjusting nut; 4 distance adjusting assembly; 41 slide column; 42 support plate; 43 eccentric adjusting wheel; 44 handle insertion slot; 5 electrode limiter. DETAILED DESCRIPTION

[0045] The embodiments of the utility model will be described by specific examples below, and those skilled in the art can easily understand other advantages and effects of the utility model from the disclosed content of the specification. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0046] Please refer to Figures 1-9 , the three-phase intelligent electric energy meter mutual inductor spot welding fixture disclosed by the utility model will be described, and the utility model has five parts, as shown in Figure 1 、 Figure 2 , including bottom plate 1, fixed assembly 3, distance adjusting assembly 4 and electrode limiter 5, the through slot 2 is formed on the side wall of the bottom plate 1, the fixed assembly 3 is installed on the side wall of the bottom plate 1, the fixed assembly 3 is used for fixing the mutual inductor and the wiring terminal, the distance adjusting assembly 4 is installed on the side wall of the bottom plate 1 and is arranged below the fixed assembly 3, the distance adjusting assembly 4 is used for adjusting the distance between the mutual inductor and the wiring terminal, and the electrode limiter 5 is installed on the fixed assembly 3, and the electrode limiter 5 is used for fixing the electrode.

[0047] In the embodiment, the through slot 2 is arranged at the central position of the side wall of the bottom plate 1, and the through slot 2 provides an operation space for subsequent welding work. The setting position and mode of the transformer and the terminal are shown in Figure 2 The fixing assembly 3 fixes the transformer and the terminal at the same time. In the direct current spot welding process, a strong magnetic field is generated around the high current output, and the magnetic field force can cause the electrical components to be displaced. Although the displacement is not significant, the installation position and relative error of the internal components of the electric energy meter as a highly precise metering instrument have strict technical requirements. If the components are displaced due to the magnetic field interference during welding, the metering accuracy and reliability of the electric energy meter will be affected.

[0048] By setting the fixing assembly 3, the relative position of the transformer and the terminal is kept stable during the welding process, which avoids the displacement of the components caused by the strong magnetic field, thereby ensuring the accuracy of the welding position and improving the metering accuracy and reliability of the electric energy meter.

[0049] By setting the distance adjusting assembly 4, the distance between the transformer and the terminal can be accurately adjusted, which avoids the errors caused by manual operation, improves the welding consistency, and also meets the welding requirements of different models of electric energy meters, thereby improving the universality and adaptability of the clamp.

[0050] By setting the fixing assembly 3 and the distance adjusting assembly 4, the quick positioning and fixing of the transformer and the terminal are realized. Compared with the traditional manual fixing and welding mode, the clamp realizes quick clamping and accurate positioning through mechanical structure, reduces the manual adjustment time, reduces the labor intensity, and improves the product consistency.

[0051] As shown in Figure 3-Figure 7As shown, the fixing assembly 3 includes a first fixing plate 31, a second fixing plate 33, a shaft block 35, a first transverse pressure strip 36, a second transverse pressure strip 38, a locking block 310, a fixing block 312 and an adjusting nut 313. The first fixing plate 31 is mounted on the side wall of the base plate 1 and is arranged above the through slot 2. A plurality of fixing holes 32 for fixing the transformer are opened on the side wall of the first fixing plate 31. The second fixing plate 33 is mounted on the side wall of the base plate 1 and is arranged below the through slot 2. A plurality of first fixing half grooves 34 for fixing the terminal blocks are opened on the side wall of the second fixing plate 33. The shaft block 35 is mounted on the side wall of the base plate 1. The first transverse pressure strip 36 is arranged above the through slot 2. The bar 36 is rotatably connected to the top wall of the shaft block 35, and a plurality of pressure blocks 37 are installed on the side wall of the first transverse pressure bar 36. The second transverse pressure bar 38 is rotatably connected to the bottom wall of the shaft block 35. The side wall of the second transverse pressure bar 38 is provided with a plurality of second fixed half grooves 39 that cooperate with the first fixed half grooves 34. The locking block 310 is installed between the first transverse pressure bar 36 and the second transverse pressure bar 38. A locking hole 311 is provided on the side wall of the locking block 310. The fixed block 312 is installed on the side wall of the base plate 1. The adjusting nut 313 is threadedly connected to the side wall of the fixed block 312. The adjusting nut 313 passes through the fixed block 312 and is inserted into the locking hole 311.

[0052] In this embodiment, the specific structures of the first fixing plate 31 and the first transverse pressing strip 36 are as follows: Figure 4 、 Figure 6 As shown, the fixing hole 32 is adapted to the shape of the mutual inductor and can fix the position of the mutual inductor; one end of the first transverse pressure bar 36 is rotatably connected to the shaft block 35, and the shaft block 35 is fixed to the bottom plate 1, so the first transverse pressure bar 36 can rotate with the shaft block 35 as the axis; the specific structure of the pressure block 37 is as shown Figure 7 As shown, the pressure block 37 is fixedly connected to the first transverse pressure strip 36 by bolts. Each mutual inductor has two connecting contacts. The pressure block 37 can fix one of the connecting contacts inside the pressure block 37 and separate the other connecting contact. Since the positions of the fixing hole 32, the first transverse pressure strip 36 and the pressure block 37 are fixed, the positions of the two connecting contacts are also relatively fixed.

[0053] During use, a plurality of mutual inductors to be welded are first placed in the fixing holes 32 , and then the first horizontal pressure strip 36 is rotated and pressed down, so that the pressing block 37 can fix the position of the connection contact pins.

[0054] The specific structures of the second fixing plate 33 and the second transverse pressing strip 38 are as follows: Figure 3 、 Figure 5As shown, one end of the second transverse bead 38 is rotatably connected to the shaft block 35, and the shaft block 35 is fixed to the bottom plate 1, so the second transverse bead 38 can rotate with the shaft block 35 as the axis. Because the locking block 310 is connected to the ends of the first transverse bead 36 and the second transverse bead 38 at the same time, the rotation of the first transverse bead 36 and the second transverse bead 38 is synchronized. The specific shapes of the first fixed half groove 34 and the second fixed half groove 39 are as follows. Figure 5 As shown, the shape of the terminal block is well known to those skilled in the art and will not be elaborated here. The first fixing half-slot 34 is polygonal, and the second fixing half-slot 39 is arc-shaped, both of which are compatible with the terminal block. The combined design of the locking block 310 and the adjusting nut 313 simplifies the clamping process. Simply rotating the adjusting nut 313 allows for quick locking and release, reducing operational difficulty.

[0055] When in use, a plurality of connecting terminals to be welded are first placed in the first fixed half groove 34 , and then the second horizontal pressure bar 38 is rotated and pressed down, so that the second fixed half groove 39 can limit the connecting terminals.

[0056] It is worth noting that the bottom of the terminal block extends below the first fixing half-slot 34 and the second fixing half-slot 39 in order to cooperate with the distance adjustment component 4 below.

[0057] It is worth noting that, since each transformer has two connecting contacts, each connecting contact needs to be welded with a terminal, so the ratio of the pressing block 37 for fixing the transformer to the first fixing half groove 34 for fixing the terminal is 1:2.

[0058] The synergistic effect of the first and second fixing plates 31, 33, first and second transverse bars 36, 38 in the fixing assembly 3, combined with the precise fit of the clamping block 37 within the fixing half-slot, secures the transformer, terminal blocks, and welding rods. This mechanical positioning effectively resists the electromagnetic forces generated by the strong magnetic field during DC spot welding, avoiding the risk of component displacement and ensuring that the welding position meets the high-precision measurement requirements of the energy meter.

[0059] like Figure 2 、 Figure 8 、 Figure 9 As shown, the distance adjustment assembly 4 includes a slide post 41, a support plate 42 and an eccentric adjustment wheel 43. The slide post 41 is threadedly connected to the bottom of the second fixed plate 33. The support plate 42 is slidingly connected to the bottom of the second fixed plate 33 through the slide post 41. The eccentric adjustment wheel 43 is symmetrically arranged, rotatably connected to the side wall of the base plate 1, and arranged below the support plate 42.

[0060] In this embodiment, the upper end of the slide post 41 is threaded, and the lower end of the slide post 41 is a smooth cylinder. The bottom of the second fixing plate 33 is provided with a threaded hole. The slide post 41 is threadedly connected to the lower portion of the second fixing plate 33, and the lower end extends below the lower portion of the second fixing plate 33. The support plate 42 has a through hole at a position corresponding to the slide post 41. The support plate 42 is slidably connected to the slide post 41 through this through hole. When the eccentric adjustment wheel 43 rotates, it pushes the support plate 42 upward, thereby pushing the terminal closer to the transformer connection contact, thereby changing the relative position between the terminal and the transformer connection contact. The distance adjustment assembly 4, through the cooperation between the support plate 42 and the eccentric adjustment wheel 43, can precisely adjust the distance between the transformer and the terminal. Compared with traditional manual methods, this design reduces errors caused by manual operation, shortens clamping time, significantly improves production efficiency, and reduces time costs.

[0061] like Figure 2 、 Figure 9 As shown, a handle slot 44 is provided on the circumferential side wall of the eccentric adjusting wheel 43 ; the handle slot 44 of the eccentric adjusting wheel 43 is designed to facilitate manual adjustment, further improving the usability of the device.

[0062] like Figure 1 、 Figure 3 As shown, the welding rod stopper 5 is mounted on the side wall of the second fixing plate 33, and a plurality of welding rod stoppers 5 are arranged at intervals. Since two points define a straight line, the number of welding rod stoppers 5 is at least two. In this embodiment, the number of welding rod stoppers 5 is three. The welding rod stoppers 5 can fix the position of the welding rod, prevent the welding rod from shifting during welding, and ensure stable welding quality.

[0063] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, such modifications or improvements, without departing from the spirit of the present invention, are within the scope of protection claimed herein.

Claims

1. A spot welding fixture for a three-phase intelligent electric energy meter transformer, characterized in that: include: A bottom plate (1) with a through slot (2) formed on the side wall; A fixing assembly (3) is mounted on the side wall of the base plate (1), and the fixing assembly (3) is used to fix the mutual inductor and the terminal block; A distance adjustment component (4) is mounted on the side wall of the base plate (1) and is arranged below the fixed component (3), and the distance adjustment component (4) is used to adjust the distance between the mutual inductor and the terminal block; A plurality of welding rod stoppers (5) are mounted on the fixing assembly (3), and the welding rod stoppers (5) are used to fix the welding rods.

2. The three-phase intelligent electric energy meter transformer spot welding fixture according to claim 1, characterized in that: The fixing assembly (3) comprises: A first fixing plate (31) is mounted on the side wall of the bottom plate (1) and is arranged above the through slot (2); a plurality of fixing holes (32) for fixing the mutual inductor are provided on the side wall of the first fixing plate (31); A second fixing plate (33) is mounted on the side wall of the bottom plate (1) and is arranged below the through slot (2); a plurality of first fixing half slots (34) for fixing the connection terminals are provided on the side wall of the second fixing plate (33); A shaft block (35) is mounted on the side wall of the base plate (1); A first transverse pressure strip (36) is rotatably connected to the top wall of the shaft block (35), and a plurality of pressure blocks (37) are installed on the side walls of the first transverse pressure strip (36); A second transverse pressure strip (38) is rotatably connected to the bottom wall of the shaft block (35), and a plurality of second fixed half grooves (39) are provided on the side wall of the second transverse pressure strip (38) and are matched with the first fixed half grooves (34); A locking block (310) is installed between the first transverse pressure strip (36) and the second transverse pressure strip (38), and a locking hole (311) is provided on a side wall of the locking block (310); A fixing block (312) is mounted on a side wall of the bottom plate (1); An adjusting nut (313) is threadedly connected to a side wall of the fixing block (312), and the adjusting nut (313) passes through the fixing block (312) and is inserted into the locking hole (311).

3. The three-phase intelligent electric energy meter transformer spot welding fixture according to claim 2, characterized in that: The distance adjustment component (4) comprises: A sliding post (41) threadedly connected to the lower side of the second fixing plate (33); A support plate (42) is slidably connected to the lower side of the second fixing plate (33) via a sliding column (41); The eccentric adjustment wheel (43) is symmetrically arranged, rotatably connected to the side wall of the bottom plate (1), and is arranged below the support plate (42).

4. The three-phase intelligent electric energy meter transformer spot welding fixture according to claim 2, characterized in that: The welding rod stopper (5) is mounted on the side wall of the second fixing plate (33), and a plurality of the welding rod stoppers (5) are arranged at intervals.

5. The three-phase intelligent electric energy meter transformer spot welding fixture according to claim 3, characterized in that: A handle slot (44) is provided on the circumferential side wall of the eccentric adjustment wheel (43).

6. The three-phase intelligent electric energy meter transformer spot welding fixture according to claim 2, characterized in that: The ratio of the number of the pressing blocks (37) to the number of the first fixed half grooves (34) is 1:2.

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