Converter transformer coil outlet positioning tool

Abstract

The utility model belongs to the field of transformer coils, and relates to a converter transformer coil outgoing head positioning tool which is characterized in that a pressure plate with a disc structure is placed on the ground, and a tool cushion block with a cuboid structure is placed on the periphery of the upper surface of the pressure plate to form a circumferential structure; the coil assembly lower base plate of a disc structure is placed at the upper end of the tool cushion block, the fixing plate is installed at the edge position of the coil assembly lower base plate, a through notch and a groove notch which are crossed are formed in the upper surface of the fixing plate, and the cross laser gradienter is installed at the intersection point position of the through notch and the groove notch. A distance is reserved between the cross laser level meter and the edge of the base plate on the lower portion of the coil assembly, the cross laser level meter emits cross three-dimensional laser, and the tool level meter is fixedly installed on the upper surface of the fixing plate. According to the coil outlet positioning device, coil outlet positioning lines are spatialized, assembly errors caused by manual positioning are avoided, operation is easy, accuracy is high, and the working efficiency of coil outlet positioning can be effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformer coils, and in particular relates to a converter transformer coil head positioning tool in a coil assembly process. Background Art

[0002] The shielding of the lead wire of the converter transformer coil usually adopts the structure of the lead molding plus the shielding tube. In order to ensure the shielding effect, the matching gap between the shielding tube and the lead molding is usually designed to be very small. Since the lead of the converter transformer coil is located at the center of the lead molding, if the position of the coil lead is offset from the designed position during the coil assembly process, it will cause difficulties in the assembly of the shielding tube, thereby affecting the shielding effect of the converter transformer coil lead.

[0003] Therefore, for converter transformers, accurate positioning of the coil head during coil assembly is very important. At present, the commonly used converter transformer coil head positioning tool is a plumb bob and a level ruler positioning tool, which is greatly affected by the operator's operating skills and may produce large errors. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a converter transformer coil head positioning tool. The technical solution adopted by the utility model is as follows:

[0005] The tooling for positioning the coil head of the converter transformer includes a trapezoidal fixed plate, a tooling level and a cross laser level. A cross-crossed through-slot and groove openings are provided on the upper surface of the fixed plate. The groove openings are parallel to and close to the long straight sides of the fixed plate. The cross laser level is installed at the intersection of the through-slot and the groove openings. A gap is left between the cross laser level and the edge of the lower pad of the coil group. The cross laser level emits cross-crossed three-dimensional lasers. The tooling level is fixedly installed on the upper surface of the fixed plate.

[0006] Preferably, a disc-structured pressure plate is placed on the ground, a plurality of rectangular-structured tooling pads are placed on the outer periphery of the upper surface of the pressure plate to form a circumferential structure, the lower pad of the coil group of the disc structure is placed on the upper end of the tooling pad, and the fixed plate is installed at the edge of the lower pad of the coil group.

[0007] Preferably, two fixing screws are symmetrically fixedly arranged on the lower surface of the fixing plate, and the lower ends of the fixing screws are screwed into the fastening nuts.

[0008] Preferably, a pair of countersunk holes are provided on the lower surface of the fixing plate, the countersunk holes are threaded, and the upper end of the fixing screw is screwed into the countersunk hole with the inner circumference tapped.

[0009] Preferably, a card structure is provided on the fixed plate, a buckle structure cooperating with the card structure is provided on the cross laser level, and the cross laser level is installed at the intersection of the through slot and the groove through the buckle structure.

[0010] Preferably, a groove one is provided at a position where a cross laser level is installed on the upper surface of the fixed plate, and the cross laser level is installed in the groove one.

[0011] Preferably, a second groove is dug at the position where the tooling level is installed on the upper surface of the fixed plate, and an edge groove is arranged inside the second groove. The edge groove on the fixed plate and the edge installation groove of the tooling level are interlocked.

[0012] Beneficial effects of the utility model:

[0013] The utility model utilizes some special tooling including a fixing plate and a cross laser level to spatialize the coil head positioning line, thereby avoiding assembly errors caused by manual positioning. The utility model tooling is simple to manufacture, low in cost, easy to operate, and has high positioning accuracy. It can effectively improve the work efficiency of coil head positioning and has a broad application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 This is a structural front view of the coil outlet positioning tooling of an embodiment of the utility model;

[0016] Figure 2 for Figure 1 AA direction top view;

[0017] Figure 3 for Figure 1 Schematic diagram of the connection structure of the BB direction fixing plate;

[0018] Figure 4 This is a working principle diagram of a cross laser level according to an embodiment of the utility model;

[0019] Figure 5 It is a schematic diagram of the principle of laser line spatial visualization of an embodiment of the utility model;

[0020] Among them, 1 is a tooling level, 2 is a cross laser level, 3 is a fixing screw, 4 is a fixing plate, 5 is a fastening nut, 6 is a lower pad of the coil group, 7 is a pressure plate, 8 is a tooling pad, 9 is a coil head, 10 is a coil head positioning line, 11 is a through slot, 12 is a groove slot, and 13 is an inner coil. DETAILED DESCRIPTION

[0021] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0022] like Figure 1-3 As shown, the converter transformer coil head positioning tooling includes a fixing plate 4, a tooling level 1 and a cross laser level 2. The pressure plate 7 is placed on the ground, and the pressure plate 7 is a disc structure. A plurality of tooling pads 8 are directly placed on the outer periphery of the upper surface of the pressure plate 7. The tooling pads 8 are rectangular parallelepiped structures, and a plurality of tooling pads 8 form a circumferential structure. The coil group lower pad 6 is placed on the upper end of the tooling pad 8, and the coil group lower pad 6 is a disc structure.

[0023] Two fixing screws 3 are symmetrically fixed on the lower surface of the fixing plate 4. The fixing plate 4 is installed at the edge of the upper surface of the coil assembly lower pad 6. The fixing screws 3 are close to the outer edge of the coil assembly lower pad 6. The fixing nut 5 is screwed into and tightened at the lower end of the fixing screw 3. The fixing plate 4 is a trapezoidal structure as a whole. The upper surface of the fixing plate 4 is provided with a cross-shaped through-slot 11 and a groove 12. The groove 12 is parallel to the long straight side of the fixing plate 4 and close to the long straight side of the fixing plate 4. A pair of countersunk holes are symmetrically provided on the lower surface of the fixing plate 4 corresponding to the positions on both sides of the through-slot 11. Threads are tapped in the countersunk holes, and the fixing screws 3 are directly screwed into the countersunk holes with inner circumference tapping.

[0024] The card structure is arranged on the fixing plate 4 , and the buckle structure is arranged on the cross laser level 2 , and the card structure and the buckle structure are matched and connected together.

[0025] A groove 1 is provided on the upper surface of the fixed plate 4 at the position where the cross laser level 2 is installed. The cross laser level 2 is installed in the groove 1. The groove 1 makes the cross laser level 2 more stable. The upper surface of the cross laser level 2 is slightly higher than the upper surface of the fixed plate 4.

[0026] Groove 2 needs to be dug on the upper surface of the fixed plate 4 at the position where the tooling level 1 is installed. Both ends of the bubble tube assembly of the tooling level 1 are respectively provided with ridge mounting grooves. A ridge groove is provided on the inner side of groove 2 of the fixed plate 4. The ridge groove on the fixed plate 4 and the ridge mounting groove of the tooling level 1 cooperate with each other to achieve a snap fit. Groove 2 and the ridge groove make the tooling level 1 more stable.

[0027] The tooling level 1 is a conventional bubble-shaped level, and the cross laser level 2 is a device that emits three-dimensional laser lines for human eye observation.

[0028] The utility model introduces the plane positioning line into the three-dimensional space through the "cross" positioning of the laser line. The operation is simple and clear, and the accuracy of the positioning of the coil head 9 during the coil assembly process is effectively ensured. The tooling adopts a cylindrical fixing screw 3 to install the fixing plate 4. The tooling can be assembled on the lower pad 6 of the coil group of any size, and is not affected by the outer dimensions of the lower pad 6 of the coil group. The cross laser level 2 of the tooling is connected to the fixing plate 4 by a buckle, and the fixing screw 3 is connected by a thread and a fastening nut 5, so that the tooling can be disassembled, which is convenient for storage and transportation of the tooling.

[0029] like Figure 4 , 5 As shown, the steps for using the converter transformer coil head positioning tool are as follows:

[0030] Step 1: Preparation before coil assembly.

[0031] 1.1. Assemble the pressure plate 7, tooling pad 8 and the bottom pad 6 of the coil assembly, and ensure that the horizontal deviation between the pressure plate 7 and the bottom pad 6 of the coil assembly is ≤2mm. The specific method is:

[0032] 1.2. Draw a vertical line on the outer side of the coil assembly bottom pad 6 to mark the coil head positioning line 10.

[0033] 1.3. Assemble the internal insulation parts of the coil in the converter transformer coil.

[0034] Step 2: Assemble the positioning tooling.

[0035] 2.1. Place the fixing plate 4 on the edge of the upper surface of the coil assembly lower pad 6, place the fixing screw 3 close to the outer edge of the coil assembly lower pad 6, screw in and tighten the fastening nut 5 at the lower end of the fixing screw 3, and the upper surface of the fastening nut 5 is close to the edge of the lower surface of the coil assembly lower pad 6. The fixing plate 4 is fixedly installed on the edge of the coil assembly lower pad 6 by the fixing screw 3 and the fastening nut 5 on the lower surface of the fixing plate 4.

[0036] 2.2. Fix the cross laser level 2 at the intersection of the through slot 11 and the groove slot 12 through a connector with a snap-on structure, and fix the tooling level 1 on the upper surface of the fixed plate 4. There should be a certain distance between the cross laser level 2 and the edge of the lower pad 6 of the coil group, and the tooling level 1 is located above the lower pad 6 of the coil group.

[0037] 2.3. Use the tooling level 1 to confirm the levelness of the bottom pad 6 of the coil assembly to ensure that the bottom pad 6 of the coil assembly is in a horizontal state.

[0038] 2.4. Adjust the horizontal position of the cross laser level 2 so that one of the laser lines emitted by the cross laser level 2 passes through the through slot 11 on the fixing plate 4 and through the coil head positioning line 10 on the outside of the coil assembly lower pad 6. Because the light is blocked by the insulating part inside the coil, the laser line is projected on the surface of the insulating part inside the coil, that is, the laser line with a certain vertical height is visualized in space.

[0039] The laser lines 1 and 2 emitted by the cross laser level 2 not only cross horizontally, but also have a certain vertical height, that is, the laser lines are a three-dimensional structure of a cross. If the laser line 2 passing through the groove opening 12 is parallel to the long straight edge of the fixed plate, it means that the direction of the laser line 1 passing through the coil head positioning line 10 is correct.

[0040] Step 3: Assemble the inner coil 13.

[0041] 3.1. Use a pen to mark the center position of the coil head 9 on the surface of the coil head 9.

[0042] 3.2. Install the inner coil 13 and adjust the position of the inner coil 13 during its falling process to ensure that the laser line passes through the center of the coil head 9.

[0043] Step 4: Other coil sets.

[0044] Repeat steps 2 and 3 until the entire converter transformer coil assembly is assembled. The converter transformer coil assembly generally includes multiple coils, and each coil needs to be assembled separately in sequence.

[0045] In the embodiments of the utility model, the technical features not described in detail are all existing technologies or conventional technical means and will not be described in detail here.

[0046] Finally, it should be noted that the above embodiments are only specific implementation methods of the present utility model, which are used to illustrate the technical solution of the present utility model, rather than to limit it, and the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that any technician familiar with the technical field can modify the technical solution recorded in the above embodiments within the technical scope disclosed by the present utility model, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the present utility model, and should be covered within the protection scope of the present utility model.

Claims

1. The converter transformer coil head positioning tool is characterized by: It includes a fixed plate with a trapezoidal structure, a tooling level and a cross laser level. The upper surface of the fixed plate is provided with cross-shaped through slots and grooves. The grooves are parallel to and close to the long straight sides of the fixed plate. The cross laser level is installed at the intersection of the through slots and the grooves. There is a distance between the cross laser level and the edge of the lower pad of the coil group. The cross laser level emits cross-shaped three-dimensional lasers. The tooling level is fixedly installed on the upper surface of the fixed plate.

2. The converter transformer coil end positioning tool according to claim 1, characterized in that: The disc-structured pressure plate is placed on the ground, and several cuboid-structured tooling pads are placed around the upper surface of the pressure plate to form a circular structure. The lower pad of the disc-structured coil group is placed on the upper end of the tooling pad, and the fixed plate is installed at the edge of the lower pad of the coil group.

3. The converter transformer coil end positioning tool according to claim 2, characterized in that: Two fixing screws are symmetrically fixed on the lower surface of the fixing plate, and the lower ends of the fixing screws are screwed into fastening nuts.

4. The converter transformer coil head positioning tool according to claim 3, characterized in that: A pair of countersunk holes are arranged on the lower surface of the fixing plate, threads are tapped in the countersunk holes, and the upper end of the fixing screw rod is screwed into the countersunk hole with inner circumference tapping.

5. The converter transformer coil end positioning tool according to claim 2, characterized in that: A card structure is arranged on the fixed plate, a buckle structure matched with the card structure is arranged on the cross laser level, and the cross laser level is installed at the intersection of the through slot and the groove through the buckle structure.

6. The converter transformer coil end positioning tool according to claim 5, characterized in that: A groove one is formed at a position where the cross laser level is installed on the upper surface of the fixed plate, and the cross laser level is installed in the groove one.

7. The converter transformer coil end positioning tool according to claim 2, characterized in that: A second groove is dug at the position where the tooling level is installed on the upper surface of the fixed plate, and an edge groove is arranged inside the second groove. The edge groove on the fixed plate and the edge installation groove of the tooling level are buckled with each other.

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