Automatic wire arranging device for transformer production

Abstract

This utility model belongs to the field of transformer production equipment, and proposes an automatic wire laying device for transformer production. It includes a base, a main shaft mechanism, a tailstock mechanism, a center, and a support rod. The support rod includes blind holes, a square tube, a baffle, and positioning holes. A limiting mechanism is provided on the support rod, which includes a grid-shaped frame and a rod assembly. An anti-slip-coil mechanism is provided on one side of the base, which includes a base, a support arm, a cantilever shaft, and a rotating sleeve. The rotating sleeve is used to rotate the supporting coil. This utility model, by using a grid-shaped frame limiting mechanism, can be quickly installed on the support rod, forming a clamping effect with the baffle on the coil, effectively limiting the axial movement of the coil. The anti-slip-coil mechanism can press against the already wound surface of the coil while laying it, effectively preventing the wire from slipping during real-time laying, thus improving laying quality and efficiency, and is suitable for large-scale promotion.

Description

Technical Field

[0001] This utility model belongs to the field of transformer production equipment, and in particular relates to an automatic wire laying device for transformer production. Background Technology

[0002] A transformer mainly consists of an iron core, windings, insulation, and accessories. The windings, also known as coils, are the part of the transformer that conducts current. The main task of transformer winding operations is to wind the transformer coils. Traditionally, this was done manually, but now workshops use automated winding machines, effectively improving production efficiency.

[0003] Most existing transformer winding frames generally include components such as the frame, main shaft mechanism, tailstock, and center. Since the center can cooperate with the main shaft to improve the rotational center accuracy of the coil, the main shaft mechanism used for coil winding is equipped with a support rod that cooperates with the coil. The end of the support rod has a tapered groove that cooperates with the center. However, the axial movement of the coil is difficult to control. Chinese utility model patent CN215118629U discloses a transformer winding frame with adjustable width. Although this device can limit the axial position of the coil, it lacks the centering function of the center, thus directly affecting the quality of coil winding.

[0004] Furthermore, guide wheels are installed in the inlet direction of the transformer winding equipment to guide the conductors. These guide wheels can reciprocate horizontally to assist the winding equipment in completing the orderly winding of the coils. However, to prevent coil skipping and overlap, workers are usually present to monitor the winding process in real time. If a skipped coil occurs, it is manually corrected. Although the winding speed is not very high, the speed must be reduced again during correction to avoid excessively long skipped coils, which directly affects the winding efficiency. Utility Model Content

[0005] This utility model addresses the technical problems existing in the aforementioned automatic transformer winding equipment by proposing an automatic winding device for transformer production that is reasonably designed, can reduce the axial movement of the coil, has an anti-coil-jumping mechanism, and is conducive to ensuring winding efficiency.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: The automatic winding device for transformer production provided by this utility model includes a base, on which a main shaft mechanism and a tailstock mechanism are provided. Inside the base is a lead screw mechanism for driving the tailstock mechanism to perform linear reciprocating motion. A center is provided at the end of the tailstock mechanism, and a support rod is provided at the end of the main shaft mechanism. A blind hole is provided at the end of the support rod to cooperate with the center. The support rod includes a square tube, with a baffle provided near the main shaft mechanism and multiple pairs of positioning holes provided away from the main shaft mechanism. A limiting mechanism is provided on the support rod, including a grid-shaped frame. Insertion rod assemblies penetrating the grid-shaped frame and the positioning holes are provided on one pair of sides of the grid-shaped frame. An anti-jumping coil mechanism is provided on one side of the base, including a base. A support arm is provided on the base, with a cantilever shaft at the upward-facing end of the support arm. A rotating sleeve is provided on the cantilever shaft, and the rotating sleeve is used to rotate the support coil.

[0007] Preferably, the support arm is hinged to the base, and a floating spring is provided on one side of the support arm, with the two ends of the floating spring connected to the support arm and the base respectively.

[0008] Preferably, the base has a positioning plate on its side facing the machine base. The positioning plate has a groove-shaped structure and its groove opening faces downwards and is fastened onto the machine base. The positioning plate has a pair of slots on its side facing the base, and the machine base has a plug that mates with the slots.

[0009] Preferably, the positioning plate has a threaded hole on the side facing away from the anti-jumping ring mechanism, and a set screw is provided in the threaded hole, with one end of the set screw abutting against one side of the machine base.

[0010] Preferably, both ends of the rotating sleeve are provided with countersunk holes, the cantilever shaft is provided with a stop nut that mates with the countersunk hole at one end facing the limiting mechanism, the cantilever shaft is provided with a bushing between the rotating sleeve and the support arm, and the cantilever shaft is provided with an anti-loosening nut on the other side of the support arm.

[0011] Preferably, the grid-shaped frame has two through tubes on its inner sides, and the through tubes have pin holes on their sides, which cooperate with the insertion rod assembly.

[0012] Preferably, the insertion rod assembly includes a hollow outer rod, one end of which is provided with a handle, and an inner rod is provided inside the outer rod. Two spaced-apart automatic springs are provided on the inner rod, and one end of each automatic spring is provided with a spring pin. The spring pin is used to cooperate with a pin hole and a radial hole provided on the outer rod.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This utility model provides an automatic coil laying device for transformer production. Through a grid-shaped frame limiting mechanism, it can be quickly installed on a support rod, forming a clamping effect with the baffle to effectively limit the axial movement of the coil. The anti-skip-coil mechanism, which presses against the already wound surface of the coil during laying, effectively prevents coil skipping during real-time laying, thus improving laying quality. This utility model is rationally designed, reduces axial movement of the coil, has an anti-skip-coil mechanism, and ensures laying efficiency, making it suitable for large-scale deployment. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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 based on these drawings without creative effort.

[0015] Figure 1 A perspective view of an automatic wire laying device for transformer production provided in an embodiment; Figure 2 A front view of an automatic wire laying device for transformer production provided in an embodiment; Figure 3 A side view of an automatic wire laying device for transformer production provided in an embodiment; Figure 4 An exploded view of the limiting mechanism provided in the embodiment; Figure 5 A cross-sectional view of the limiting mechanism provided in the embodiment; Figure 6 for Figure 5 Enlarged schematic diagram of the limiting mechanism at point A; Figure 7 A perspective view of the anti-jump ring mechanism and positioning plate provided in the embodiment; Figure 8 Top view of the anti-jumping ring mechanism and positioning plate provided in the embodiment; Figure 9 for Figure 3 A cross-sectional view of the automatic wire laying device used in the production of transformers along the GG direction; In the above figures: 1. Base; 2. Spindle mechanism; 3. Tailstock mechanism; 4. Center; 5. Support rod; 51. Blind hole; 52. Square tube; 53. Baffle; 54. Positioning hole; 6. Limiting mechanism; 61. Grid frame; 62. Insert rod assembly; 621. Outer rod; 622. Handle head; 623. Inner rod; 624. Automatic spring; 625. Spring pin; 626. Radial hole; 63. Through tube; 64. Pin hole; 7. Anti-jumping ring mechanism; 71. Base; 72. Support arm; 73. Cantilever shaft; 74. Rotating sleeve; 741. Countersunk hole; 75. Floating spring; 76. Insert block; 77. Stop nut; 78. Bushing; 79. Anti-loosening nut; 8. Positioning plate; 81. Slot; 82. Set screw. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Examples, such as Figures 1-9 As shown, the automatic wire laying device for transformer production provided by this utility model includes a base 1, on which a main shaft mechanism 2 and a tailstock mechanism 3 are provided. Inside the base 1 is a lead screw mechanism for driving the tailstock mechanism 3 to perform linear reciprocating motion. A center point 4 is provided at the end of the tailstock mechanism 3, and a support rod 5 is provided at the end of the main shaft mechanism 2. The end of the support rod 5 has a blind hole 51 that mates with the center point 4. The support rod 5 includes a square tube 52, and a baffle 53 is provided near the main shaft mechanism 2. The baffle 53 is located at the far end of the square tube 52. Multiple pairs of positioning holes 54 are provided at a position away from the main spindle mechanism 2. A limit mechanism 6 is provided on the support rod 5. The limit mechanism 6 includes a grid-shaped frame 61. A pair of sides of the grid-shaped frame 61 are provided with a rod assembly 62 that passes through the grid-shaped frame 61 and the positioning holes 54. An anti-jumping coil mechanism 7 is provided on one side of the base 1. The anti-jumping coil mechanism 7 includes a base 71. A support arm 72 is provided on the base 71. A cantilever shaft 73 is provided at the upward end of the support arm 72. A rotating sleeve 74 is provided on the cantilever shaft 73. The rotating sleeve 74 is used to rotate the support coil.

[0019] Specifically, a control box is provided on the side of the main spindle mechanism 2. The control box is equipped with control switches, emergency stop switches, and speed adjustment buttons for controlling the internal transmission mechanism and lead screw mechanism of the main spindle mechanism 2. The lead screw mechanism is used to drive the tailstock mechanism 3 to approach and move away from the support rod 5. The tip 4 is rotatably mounted at the end of the tailstock mechanism 3. The handwheel of the tailstock mechanism 3 is used to control the horizontal feed of the tip 4 to tighten the support rod 5, thereby improving the balance and coaxiality of the transformer coil as it rotates with the main spindle. Based on this, the limiting mechanism 6 provided by this utility model can be quickly installed on the support rod 5 and forms a clamping mechanism for the coil with the baffle 53, thereby effectively limiting the axial movement of the coil. An anti-jump mechanism 7 is provided in the rotation direction of the coil and the guiding wire feeding direction. The anti-jump mechanism 7 can abut against the already wound surface of the coil while the coil is being laid, which can effectively prevent the wire from jumping during real-time laying, thus improving the laying quality and laying efficiency.

[0020] To improve the dynamic contact performance between the anti-jump mechanism 7 and the coil surface, the support arm 72 provided in this invention is hinged to the base 71. A floating spring 75 is provided on one side of the support arm 72, and the two ends of the floating spring 75 are respectively connected to the support arm 72 and the base 71. The anti-jump mechanism 7 uses a cantilever design to avoid the rotating part of the grid frame 61, preventing the grid frame 61 from hitting the cantilever shaft 73 when rotating with the main shaft. Supported by the floating spring 75, the support arm 72 and the cantilever shaft 73 can abut against the coil surface. As the coil rotates continuously, dynamic pressure is applied to the floating spring 75 sequentially from the rotating sleeve 74, the cantilever shaft 73, and the support arm 72. The floating spring 75 adjusts the angle of the support arm 72 in real time according to the pressure, thereby allowing the rotating sleeve 74 to better contact the coil surface. Especially for transformers with non-circular coil structures, providing a support arm 72 with a certain swing amplitude can effectively improve the actual working performance of this anti-jump mechanism 7.

[0021] To facilitate the installation of the anti-jump ring mechanism 7, this utility model adopts a positioning plate 8 for installing the anti-jump ring mechanism 7. Specifically, the base 71 is provided with a positioning plate 8 on its side facing the base 1. The positioning plate 8 has a groove-shaped structure and its groove opening faces downwards and is fastened to the base 1. The positioning plate 8 is provided with a pair of slots 81 on its side facing the base 71. The base 1 is provided with a plug 76 that mates with the slots 81. The positioning plate 8 is provided with a threaded hole on its side facing away from the anti-jump ring mechanism 7. A set screw 82 is provided in the threaded hole, and one end of the set screw 82 abuts against one side of the base 1. The positioning plate 8 has a groove that spans across the base 1. The positioning plate 8 is upside down on the base 1, and its two sides can be kept stable by friction with the two sides of the base 1. To further improve assembly reliability, the positioning plate 8 is pressed by the set screw 82. The positioning plate 8 is installed with the anti-jump mechanism 7 through the slot 81 and the insert block 76. The main pressure of the anti-jump mechanism 7 comes from the spindle mechanism 2 above it. Installing the anti-jump mechanism 7 through the positioning plate 8 can provide effective anti-overturning force and ensure that the anti-jump mechanism 7 can effectively perform its anti-jump function.

[0022] Furthermore, the rotating sleeve 74 provided by this invention can rotate with the coil, avoiding the impact of excessive relative friction on the surface quality of the coil conductor. Based on this, both ends of the rotating sleeve 74 provided by this invention are provided with countersunk holes 741. The cantilever shaft 73 has a stop nut 77 that mates with the countersunk hole 741 at one end facing the limiting mechanism 6. A bushing 78 is provided on the cantilever shaft 73 between the rotating sleeve 74 and the support arm 72, and an anti-disengagement nut 79 is provided on the other side of the cantilever shaft 73 located on the support arm 72. The stop nut 77 is concealed at one end of the rotating sleeve 74, while the other end of the rotating sleeve 74 uses bushings 78 of different lengths to control its actual distance from the support arm 72. The anti-disengagement nut 79 is used to prevent large axial displacement of the rotating sleeve 74. In this way, the combination of the rotating sleeve 74, the anti-disengagement nut 79, the stop nut 77, and the bushing 78 ensures that the rotating sleeve 74 has sufficient axial horizontal support length for the coil, meeting the basic requirements of the anti-coil-jumping function.

[0023] To improve the fit between the grid-shaped frame 61 and the insertion rod assembly 62, the grid-shaped frame 61 provided by this utility model has two through-tubes 63 on a pair of inner sides. The sides of the through-tubes 63 are provided with pin holes 64, which engage with the insertion rod assembly 62. In this way, the grid-shaped frame 61 not only provides an effective cross-shaped support span for the ends of the coil, especially suitable for non-circular coils, such as key-shaped coils, but also provides a mounting base for the through-tubes 63 that limits lateral movement, and allows for quick engagement with the insertion rod assembly 62 via the pin holes 64. It should be noted that during the production of transformer coils, end flanges or other tooling structures are generally provided at the center and both ends, which are not removed before assembling the transformer. Therefore, they can be inserted with the support rod 5 to complete the wiring operation.

[0024] Furthermore, the insertion rod assembly 62 provided by this utility model includes a hollow outer rod 621, one end of which is provided with a handle 622, and an inner rod 623 is provided inside the outer rod 621. Two spaced automatic springs 624 are provided on the inner rod 623, and one end of the automatic spring 624 is provided with a spring pin 625. The spring pin 625 is used to cooperate with the pin hole 64 and the radial hole 626 provided on the outer rod 621. One end of the inner rod 623 is provided with a tip and its diameter is smaller than that of the through tube 63, which can be held by hand to facilitate the insertion of the inner rod 623 into the outer rod 621. The inner rod 623, together with the automatic spring 624 and the spring pin 625, is inserted into the outer rod 621. The pressure of the automatic spring 624 can cause the spring pin 625 to pop out near the radial hole. By holding the handle 622 and inserting the insertion rod assembly 62 into the grid frame 61, the spring pin 625 pops out from the pin hole 64, which can fix the limiting mechanism 6. If the spring pin 625 is manually pressed to compress it a certain distance towards the inner rod 623, the insertion rod assembly 62 can be held away from the grid frame 61, thereby completing the quick removal of the grid frame 61.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An automatic wire-laying device for transformer production, comprising a base, on which a main spindle mechanism and a tailstock mechanism are mounted; a lead screw mechanism for driving the tailstock mechanism to perform linear reciprocating motion is disposed inside the base; a center is disposed at the end of the tailstock mechanism; a support rod is disposed at the end of the main spindle mechanism; and a blind hole is disposed at the end of the support rod to mate with the center. The device is characterized in that... The support rod includes a square tube with a baffle near the main spindle mechanism and multiple pairs of positioning holes away from the main spindle mechanism. A limiting mechanism is provided on the support rod, comprising a grid-shaped frame. Insert rod assemblies penetrating the grid-shaped frame and the positioning holes are provided on one pair of sides of the grid-shaped frame. An anti-jumping coil mechanism is provided on one side of the base, comprising a base with a support arm on it. A cantilever shaft is provided at the upward-facing end of the support arm, and a rotating sleeve is provided on the cantilever shaft for rotating the support coil.

2. The automatic wire laying device for transformer production according to claim 1, characterized in that, The support arm is hinged to the base, and a floating spring is provided on one side of the support arm. The two ends of the floating spring are respectively connected to the support arm and the base.

3. The automatic wire laying device for transformer production according to claim 2, characterized in that, The base has a positioning plate on its side facing the machine base. The positioning plate has a groove-shaped structure and its groove opening faces downwards and is fastened onto the machine base. The positioning plate has a pair of slots on its side facing the base. The machine base has a plug that mates with the slots.

4. The automatic wire laying device for transformer production according to claim 3, characterized in that, The positioning plate has a threaded hole on the side facing away from the anti-jumping ring mechanism, and a set screw is provided in the threaded hole. One end of the set screw abuts against one side of the machine base.

5. The automatic wire laying device for transformer production according to claim 4, characterized in that, Both ends of the rotating sleeve are provided with countersunk holes. The cantilever shaft is provided with a stop nut that mates with the countersunk hole at one end facing the limiting mechanism. The cantilever shaft is provided with a bushing between the rotating sleeve and the support arm. The cantilever shaft is provided with an anti-loosening nut on the other side of the support arm.

6. The automatic wire laying device for transformer production according to claim 1 or 5, characterized in that, Two through-tubes are provided on a pair of inner sides of the grid-shaped frame, and pin holes are provided on the sides of the through-tubes, which cooperate with the insertion rod assembly.

7. The automatic wire laying device for transformer production according to claim 6, characterized in that, The insertion rod assembly includes a hollow outer rod with a handle at one end and an inner rod inside the outer rod. The inner rod has two spaced-apart automatic springs, each with a spring pin at one end. The spring pin is used to engage with a pin hole and a radial hole on the outer rod.

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