Transformer shaping device

Abstract

The utility model relates to a transformer shaping device in the technical field of transformer coil production, which comprises a base, the top surface of the base is slidably connected with a sliding plate along the longitudinal direction of the base, and a horizontal turntable is embedded in the middle of the top surface of the sliding plate; the door frame is longitudinally arranged above the base in a spanning manner; the first shaping mechanism comprises driving equipment and two arc-shaped clamping blocks which are symmetrically arranged; the second shaping mechanism comprises downward pressing equipment and a shaping pressing plate, the downward pressing equipment is fixed to the top of the door frame, and the output end of the downward pressing equipment is connected with the shaping pressing plate; the sliding plate is matched with the horizontal rotary table, when driving equipment drives the arc-shaped clamping blocks to move, the transformer coil is automatically centered and positioned under symmetrical clamping force, it is guaranteed that the semicircular part is evenly stressed in the shaping process, and size errors caused by deviation are avoided.

Description

Technical Field

[0001] This utility model relates to the field of transformer coil production technology, and in particular to a transformer shaping device. Background Technology

[0002] To meet the space requirements of locations with high space requirements and to better adapt to the shape of the transformer core, existing transformer coils often use elongated oval coils. Therefore, during the winding process, the copper wire often becomes loose. In order to ensure that the coil can be properly placed in the transformer tank for normal use, in addition to keeping the copper wire taut while winding, it can also be corrected through subsequent shaping and tightening processes.

[0003] Existing shaping and clamping devices, such as the long round coil shaping device for power transformers described in application number CN201922436419.2, use a plate that moves up and down to shape the transformer coil. This not only results in poor shaping effect but also fails to shape the curved side and is prone to deformation of the curved side when shaping the flat side.

[0004] To address this, we designed a transformer shaping device. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model discloses a transformer shaping device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A transformer shaping device, comprising:

[0008] The base has a sliding plate slidably connected to its top surface along its longitudinal direction, and a horizontal turntable is embedded in the middle of the top surface of the sliding plate;

[0009] The gantry is longitudinally mounted above the base;

[0010] The first shaping mechanism includes a driving device and two symmetrically arranged arc-shaped clamps. The driving device is connected to the arc-shaped clamps through a bidirectional driving component, which drives the two arc-shaped clamps to move synchronously towards or away from each other, so as to clamp and shape the semicircular part of the transformer coil.

[0011] The second shaping mechanism includes a pressing device and a shaping plate. The pressing device is fixed to the top of the gantry and its output end is connected to the shaping plate to drive the shaping plate to press down vertically to shape the planar portion of the transformer coil.

[0012] Furthermore, the driving device includes a drive motor, a rotating shaft, an adjusting screw, and a sliding guide column;

[0013] The output shaft of the drive motor is connected to the rotating shaft via a gear set, and the rotating shaft is arranged longitudinally along the base and rotatably connected to the bottom of the base;

[0014] The adjusting screw is provided in two parts, which are symmetrically connected to both ends of the rotating shaft and are connected to the rotating shaft through a transmission mechanism;

[0015] The sliding guide post is threaded onto the adjusting screw, and its inner end passes through the side wall of the gantry and is fixedly connected to the corresponding arc-shaped clamping block.

[0016] Furthermore, the base is provided with brackets at both ends, and the brackets are rotatably connected to the outer end of the adjusting screw to further support the rotational movement of the adjusting screw.

[0017] Furthermore, the shaping plate has downwardly extending arc-shaped portions on both sides of its edge, and the inner contour of the arc-shaped portions matches the outer contour of the upper section of the semicircular portion of the transformer coil.

[0018] Furthermore, the bottom edge of the arc-shaped portion is provided with rounded corners or embedded with flexible corner protectors.

[0019] Furthermore, a height gap of 2 to 10 mm is reserved between the upper side of the arc-shaped clamping block and the side of the shaping pressure plate.

[0020] Furthermore, a height gap of 2-5mm is reserved between the upper side of the arc-shaped clamping block and the surface of the horizontal turntable.

[0021] Furthermore, a reset spring is provided between both ends of the sliding plate and the base, which is used to drive the sliding plate to reset to the initial position after the shaping is completed.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. By cooperating with the sliding plate and the horizontal turntable, when the drive device moves the arc-shaped clamping block, the transformer coil is automatically centered and positioned by symmetrical clamping force, ensuring that the semicircular part is evenly stressed during the shaping process and avoiding dimensional errors caused by offset.

[0024] 2. Reset springs are installed at both ends of the sliding plate. After the shaping is completed, the driving force of the reset springs causes the sliding plate to automatically return to the initial position without manual intervention, which greatly shortens the loading and unloading interval time and improves the efficiency of continuous operation.

[0025] 3. The first shaping mechanism synchronously controls the arc-shaped clamping block through the bidirectional drive component to accurately clamp the semicircular part; when the shaping plate of the second shaping mechanism presses down, its arc-shaped part and flexible corner design synchronously fit the upper section of the semicircular part and the flat part, which not only ensures the tightness of the copper wire, but also avoids damage to the insulation layer. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is the first structural front view of the present invention;

[0028] Figure 3 This is a top view of the present invention;

[0029] Figure 4 This is a front view of the first structure of this utility model in its usage state;

[0030] Figure 5 This is a diagram of the second structure of this utility model;

[0031] Figure 6 This is a front view of the workpiece in the shaping state of this utility model.

[0032] In the diagram: 1. Base; 2. Sliding plate; 3. Horizontal turntable; 4. Gantry; 5. First shaping mechanism; 51. Drive device; 511. Drive motor; 512. Rotating shaft; 513. Adjusting screw; 514. Sliding guide column; 52. Arc-shaped clamp; 6. Second shaping mechanism; 61. Pressing device; 62. Shaping pressure plate; 621. Arc-shaped part; 7. Bracket; 8. Return spring. Detailed Implementation

[0033] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if terms such as "upper", "lower", "front", "rear", "left", "right" indicate orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention. It should be understood that if terms such as "end", "side", "end portion", "side part", "lateral", "longitudinal", etc. indicate orientation or positional relationship, they are only corresponding to the length and width of the corresponding component. That is, "end" indicates the head and tail area in the length direction of the corresponding component, and "side part" indicates the head and tail area in the width direction of the corresponding component. They are used for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation.

[0034] Example 1, in conjunction with Appendix Figure 1-4 A transformer shaping device includes a base 1, a sliding plate 2, a gantry 4, a first shaping mechanism 5, and a second shaping mechanism 6.

[0035] The base 1 is a cuboid structure with a guide rail (not labeled in the figure) along its longitudinal direction on its top surface. The sliding plate 2 is slidably connected to the base 1 via the guide rail. A horizontal turntable 3 is embedded in the center of the top surface of the sliding plate 2, which is used to place the transformer coil to be shaped. A return spring 8 is provided between both ends of the sliding plate 2 and the base 1. When the sliding plate 2 is deviated from its initial position by external force, the return spring 8 can drive it to automatically return to the center of the top surface of the base 1.

[0036] As needed, the base 1 is provided with support legs at the bottom to provide installation space for the drive device 51.

[0037] The gantry 4 is longitudinally mounted above the base 1 and fixed to both sides of the base 1 with bolts. A second shaping mechanism 6 is installed at the center of the top of the gantry 4. The second shaping mechanism 6 includes a pressing device 61 and a shaping plate 62. The pressing device 61 is preferably a hydraulic cylinder or an electric push rod, and its output end is vertically connected to the shaping plate 62.

[0038] The first shaping mechanism 5 is symmetrically arranged on both sides of the base 1, and includes a driving device 51 and an arc-shaped clamping block 52. The driving device 51 consists of a drive motor 511, a rotating shaft 512, an adjusting screw 513, and a sliding guide post 514. Among them, the rotating shaft 512, the adjusting screw 513, and the sliding guide post 514 constitute a bidirectional driving assembly.

[0039] The drive motor 511 is fixed below the base 1, and its output shaft is connected to the rotating shaft 512 via a gear set (not shown in the figure). The rotating shaft 512 extends longitudinally along the base 1, and its two ends are rotatably supported by bearing seats (not labeled in the figure). Two adjusting screws 513 are provided, which are respectively connected to the two ends of the rotating shaft 512 via a belt set or a gear set (not labeled in the figure), and the outer end of the adjusting screw 513 is rotatably fixed to the end of the base 1 via a bracket 7. The sliding guide post 514 is threadedly engaged with the adjusting screw 513, and its inner end passes through the guide hole in the side wall of the gantry 4 and is fixedly connected to the arc-shaped clamp 52.

[0040] Working principle:

[0041] Semicircular part shaping: After the drive motor 511 starts, it drives the rotating shaft 512 to rotate, which in turn drives the two adjusting screws 513 to rotate synchronously. The sliding guide post 514 moves along the guide rail under the thread drive of the adjusting screws 513, causing the two arc-shaped clamps 52 to move towards or away from each other. When the arc-shaped clamps 52 move towards each other, they clamp the semicircular part of the transformer coil, and the precise shaping of the semicircular part is completed by the positioning of the horizontal turntable 3.

[0042] Flat section shaping: The pressing device 61 of the second shaping mechanism 6 drives the shaping pressure plate 62 to press down vertically, and the arc-shaped part 621 fits into the upper section of the semi-circular part of the coil. At the same time, the pressure plate body applies uniform pressure to the flat part of the coil to avoid deformation of the copper wire.

[0043] It should be noted that the second shaping mechanism 6 can be used for assistance during the shaping of the semicircular portion. Similarly, the first shaping mechanism 5 can be used for assistance during the shaping of the planar portion. Taking the shaping of the semicircular portion as an example, the drive motor 511 is first started, causing the two arc-shaped clamps 52 to clamp the transformer coil. At this time, the transformer coil, whose position is uncertain, will move to the middle position. That is, when the transformer coil is placed with a longitudinal offset, the two arc-shaped clamps 52 clamping the transformer coil will cause the sliding plate 2 to slide longitudinally, thus moving the transformer coil to the middle position. When the transformer coil is placed with a horizontal angular deviation, the two arc-shaped clamps 52 clamping the transformer coil will cause the horizontal turntable 3 to rotate, thus moving the transformer coil to the middle position.

[0044] Reset and Adjustment: After the shaping is completed, the drive motor 511 reverses and the arc-shaped clamp 52 resets; the sliding plate 2 returns to its initial position under the action of the reset spring 8, making it easy to remove the shaped transformer coil.

[0045] As needed, a height gap of 2-5mm is reserved between the upper side of the arc-shaped clamping block 52 and the side of the shaping pressure plate 62, and between the lower side and the table surface of the horizontal turntable 3. That is, during the operation of the first shaping mechanism 5 and the second shaping mechanism 6, as shown in the attached... Figure 4 As shown, there is a height gap of 2~5mm between the arc-shaped clamping block 52, the shaping pressure plate 62, and the upper surface of the horizontal turntable 3.

[0046] It should be noted that the lengths of the arc-shaped clamp 52 and the shaping pressure plate 62 are greater than the length of the transformer coil to be shaped.

[0047] Example 2, in conjunction with Appendix Figure 5-6 A transformer shaping device, based on embodiment one: the shaping pressure plate 62 has downwardly extending arc-shaped portions 621 on both sides of its edges, the inner contour of the arc-shaped portions 621 matching the outer contour of the upper section of the semicircular portion of the transformer coil, ensuring that it can fit the semicircular portion of the coil when pressed down.

[0048] To further protect the coil surface, the bottom edge of the arc-shaped portion 621 is processed into rounded corners or inlaid with flexible corner protectors (such as rubber strips).

[0049] As needed, a height gap of 5-10mm is reserved between the upper side of the arc-shaped clamping block 52 and the side edge of the shaping pressure plate 62. That is, during the operation of the first shaping mechanism 5 and the second shaping mechanism 6, as shown in the attached... Figure 6 As shown, there is a 2-5mm height gap between the arc-shaped clamping block 52 and the upper surface of the horizontal turntable 3. Since the shaping pressure plate 62 has arc-shaped portions 621 on both sides, the height difference between the two can be amplified. That is, during the operation of the first shaping mechanism 5 and the second shaping mechanism 6, as shown in the attached diagram... Figure 6As shown, the height difference between the arc-shaped clamping block 52 and the arc-shaped part 621 of the shaping pressure plate 62 can be 5~10mm.

[0050] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims in this utility model, and no reference numerals in the claims should be regarded as limiting the content of the claims.

Claims

1. A transformer shaping device, characterized in that, include: The base (1) has a sliding plate (2) slidably connected to its top surface along its longitudinal direction, and a horizontal turntable (3) is embedded in the middle of the top surface of the sliding plate (2). The gantry (4) is longitudinally positioned above the base (1); The first shaping mechanism (5) includes a driving device (51) and two symmetrically arranged arc-shaped clamps (52). The driving device (51) is connected to the arc-shaped clamps (52) through a bidirectional driving component, which is used to drive the two arc-shaped clamps (52) to move synchronously towards each other or away from each other, so as to clamp and shape the semicircular part of the transformer coil. The second shaping mechanism (6) includes a pressing device (61) and a shaping plate (62). The pressing device (61) is fixed to the top of the gantry (4), and its output end is connected to the shaping plate (62) to drive the shaping plate (62) to press down vertically to shape the flat part of the transformer coil.

2. The transformer shaping device according to claim 1, characterized in that: The drive device (51) includes a drive motor (511), a rotating shaft (512), an adjusting screw (513), and a sliding guide column (514). The output shaft of the drive motor (511) is connected to the rotating shaft (512) via a gear set. The rotating shaft (512) is arranged longitudinally along the base (1) and rotatably connected to the bottom of the base (1). Two adjusting screws (513) are provided, which are symmetrically connected to both ends of the rotating shaft (512) and are connected to the rotating shaft (512) through transmission. The sliding guide post (514) is threaded onto the adjusting screw (513), and its inner end passes through the side wall of the gantry (4) and is fixedly connected to the corresponding arc-shaped clamp (52).

3. The transformer shaping device according to claim 2, characterized in that: The base (1) has brackets (7) at both ends. The brackets (7) are rotatably connected to the outer end of the adjusting screw (513) to further support the rotational movement of the adjusting screw (513).

4. The transformer shaping device according to claim 1, characterized in that: The shaping plate (62) has downwardly extending arc-shaped portions (621) on both sides of its edges. The inner contour of the arc-shaped portion (621) matches the outer contour of the upper section of the semicircular portion of the transformer coil.

5. A transformer shaping device according to claim 4, characterized in that: The bottom edge of the arc-shaped portion (621) is provided with rounded corners or embedded with flexible corner protectors.

6. The transformer shaping device according to claim 1, characterized in that: A height gap of 2-10mm is reserved between the upper side of the arc-shaped clamp (52) and the side of the shaping plate (62).

7. A transformer shaping device according to claim 1, characterized in that: A height gap of 2-5mm is reserved between the upper side of the arc-shaped clamp (52) and the table surface of the horizontal turntable (3).

8. A transformer shaping device according to claim 1, characterized in that: The sliding plate (2) is provided with a reset spring (8) between its two ends and the base (1), which is used to drive the sliding plate (2) to reset to the initial position after the shaping is completed.

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