A high-precision high-frequency transformer wire frame cutting device

Abstract

The present invention provides a high-precision high-frequency transformer wire rack cutting device, comprising a trimming table and a trimming mechanism arranged on the trimming table, the trimming mechanism comprising a trimming plate arranged in a trimming opening on the upper end surface of the trimming table, a lifting assembly arranged on the bottom wall of a working chamber of the trimming table, a fixing assembly arranged on the lifting assembly for clamping and fixing the bent legs of the transformer, and a shearing assembly arranged on the fixing assembly for cutting the bent legs; a plurality of trimming holes arranged at equal intervals and for the bent legs of the transformer to pass through are provided on the surface of the trimming plate; the present invention can conveniently trim a plurality of bent legs of transformers, and can trim the bent legs of transformers of different models, thereby improving the trimming efficiency of the bent legs of the transformers.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer wire frame cutting, in particular to high-precision high-frequency transformer wire frame cutting equipment. Background Art

[0002] BOBBIN refers to the bobbin, also known as the transformer bobbin or transformer wire frame, and is a component of the transformer's main structure. Transformers are widely used in today's society, and the corresponding main body is also indispensable, so the bobbin plays an irreplaceable role.

[0003] Bobbins are generally categorized by the core (or iron core) used in the transformer, including EI, EE, EF, EPC, ER, RM, PQ, and UU. Each model can be further differentiated by core (or iron core) size, such as EE5, EE8, EE13, and EE19. Bobbins are categorized by shape: vertical and horizontal. They are further categorized by the operating frequency of the transformer into high-frequency and low-frequency bobbins. The frequency here refers not to the number of uses, but to the number of cyclic changes during operation of the transformer, measured in Hertz (Hz), also commonly referred to as kilohertz (kHz), megahertz (MHz), or GHz. Bobbins are further categorized by the pinout used, into direct-in-place (DIP) and surface-mount (SMD) bobbins.

[0004] After the production of the transformer wire rack, the bent legs of the transformer wire rack need to be trimmed according to different requirements and needs. Among the transformer corner shearing machines disclosed and put into use in the prior art, most of the corner shearing machines shear the transformer bent legs through the following process: the corner shearing machine is provided with a corner shearing hole that matches the bent legs of the corresponding model of transformers, and the bent legs of the corresponding model of transformers are directly inserted into the corner shearing hole and the pneumatic machine can shear the bent legs. However, this trimming method will result in low trimming efficiency even if trimming is performed mechanically, and can only modify the bent legs of a single type of transformer, resulting in a small range of use of the product. Summary of the Invention

[0005] In response to the above technical problems, the present invention provides a high-precision high-frequency transformer wire rack cutting device, which can conveniently trim multiple transformer bent legs and can trim the bent legs of transformers of different models, thereby improving the trimming efficiency of transformer bent legs.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a high-precision high-frequency transformer wire rack cutting device, comprising a trimming table and a trimming mechanism disposed on the trimming table, the trimming mechanism comprising a trimming plate disposed within a trimming opening formed on an end surface of the trimming table, a lifting assembly disposed on the bottom wall of a working chamber of the trimming table, a fixing assembly disposed on the lifting assembly for clamping and fixing a bent leg of the transformer, and a shearing assembly disposed on the fixing assembly for cutting the bent leg;

[0007] The trimming plate is provided with a plurality of trimming holes arranged at equal intervals for the transformer bent legs to pass through;

[0008] The fixing assembly includes a lifting plate disposed in the working chamber and below the trimming plate, a plurality of clamping plates symmetrically disposed on the upper surface of the lifting plate in groups of two about each row of trimming holes, and a fixing member disposed on the lifting plate and controlling the top sides of each two groups of clamping plates to approach each other. The lifting plate is disposed on the lifting assembly and connected to the shearing assembly.

[0009] The fixing member includes a rotating rod fixedly arranged on both sides of each clamping plate and rotatably connected to the lifting plate at the bottom end, a pulling block arranged between the top sides of each two sets of clamping plates, two linkage rods, one end of which is rotatably connected to the two ends of the pulling block and the other end of which is connected to the top of the two rotating rods, and a fixing structure arranged on the lifting plate and controlling the pulling block to move toward the lifting plate;

[0010] The shearing assembly includes two driving rods arranged parallel to the lifting plate and located on both sides of the clamping plate, an elastic member arranged on the lower side of the driving rod and connected to the upper end surface of the lifting plate, a cutting blade arranged between the two driving rods, and a shearing member arranged on the driving rod and driving the cutting blade to move between the two driving rods; the lower side of the driving rod is in contact with the top of the rotating rod.

[0011] Preferably, the fixed structure includes a linkage plate parallel to the lifting plate and arranged below the lifting plate, a control cylinder whose bottom end is vertically arranged on the lower end surface of the lifting plate and whose output end is connected to the upper end surface of the linkage plate, and multiple adjustment rods arranged in the vertical direction and whose top ends are rotatably connected to multiple pulling blocks one by one and whose bottom ends are fixedly connected to the side of the linkage plate.

[0012] Preferably, the lifting assembly includes a support block arranged in the working chamber and located below the lifting plate, and a lifting cylinder whose two bottom ends are symmetrically arranged on the upper end surface of the support block with respect to the lifting plate and whose output ends are fixedly connected to the side surfaces of the lifting plate.

[0013] Preferably, the elastic member includes a telescopic rod whose top end is fixedly arranged at the two ends of the lower side of each driving rod and whose bottom end is vertically fixedly arranged on the upper end surface of the lifting plate, and a tension spring which is sleeved on the telescopic rod and whose two ends are respectively fixedly connected to the lower side of the driving rod and the upper end surface of the lifting plate.

[0014] Preferably, the shearing piece includes a driving screw arranged in a driving groove opened along the length direction of the adjacent side surfaces of the two driving rods, a screw nut arranged in the driving groove and sleeved on the driving screw and connected to both ends of the cutting blade, and a driving motor arranged at one end of each driving rod and with the output end connected to one end of the driving screw.

[0015] The beneficial effects of the present invention are as follows: the transformer is directly plugged into the trimming hole provided on the trimming plate through the bent leg, a part of the bent leg passes through the trimming hole below the trimming plate, and then the bent leg is trimmed by the shearing component, and the number of bent legs of transformers of different models and the spacing distances therebetween are different, wherein a plurality of trimming holes are provided on the trimming plate, thereby facilitating the insertion of the bent legs of transformers of different models into the trimming holes on the trimming plate, thereby facilitating the trimming of the bent legs of transformers of different models by the trimming component, thereby improving the scope of use of the trimming of the bent legs of the transformers, facilitating use, and controlling a plurality of transformers to be synchronously inserted into the trimming holes through the bent legs by an existing device, thereby facilitating the trimming of the bent legs of a plurality of transformers, conveniently trimming a plurality of bent legs of transformers, and trimming the bent legs of transformers of different models, thereby improving the trimming efficiency of the bent legs of the transformers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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:

[0017] Figure 1 This is a simplified structural diagram of the high-precision high-frequency transformer wire frame cutting equipment proposed by the present invention.

[0018] Figure 2 Schematic diagram of the internal structure of the working chamber of the present invention.

[0019] Figure 3 It is a schematic structural diagram of the trimming mechanism of the present invention.

[0020] Figure 4 It is a schematic diagram of the enlarged structure of point A of the present invention.

[0021] Figure 5 This is an enlarged structural diagram of point B of the present invention.

[0022] In the figure: 1. Trimming table; 2. Trimming mouth; 3. Trimming plate; 4. Working chamber; 5. Support block; 6. Lifting cylinder; 7. Lifting plate; 8. Control cylinder; 9. Linkage plate; 10. Drive rod; 11. Cutting blade; 12. Adjustment rod; 13. Drive motor; 14. Drive slot; 15. Drive screw; 16. Telescopic rod; 17. Tension spring; 18. Rotating rod; 19. Pulling block; 20. Linkage rod; 21. Clamping plate. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments and drawings. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0024] See also Figure 1-5 A high-precision high-frequency transformer wire rack cutting device includes a trimming table 1 and a trimming mechanism disposed on the trimming table 1. The trimming mechanism includes a trimming plate 3 disposed in a trimming opening 2 provided on the upper end surface of the trimming table 1, a lifting assembly disposed on the bottom wall of a working chamber 4 of the trimming table 1, a fixing assembly disposed on the lifting assembly for clamping and fixing the transformer bent leg, and a shearing assembly disposed on the fixing assembly for cutting the bent leg.

[0025] The trimming plate 3 is provided with a plurality of trimming holes which are arranged at equal intervals and for the bent legs of the transformer to pass through.

[0026] like Figure 1-5 As shown, the trimming plate 3 is provided with a plurality of trimming holes arranged at equal intervals, and the number and distance between the bent legs of different types of transformers are different. When the bent legs of the transformer are trimmed by the existing transformer shearing machine, it is necessary to replace the transformer shearing machine of different models when trimming the transformers of different models, so as to facilitate the trimming of the bent legs of transformers of different models corresponding to the models of transformers of different models. In this application, the bent legs of transformers of different models are directly passed through the trimming holes provided on the trimming plate 3, and then the trimming assembly provided in the working chamber 4 is used to facilitate the trimming of the length of the bent legs passing through the trimming holes, and the working A lifting assembly and a fixing assembly are provided in the working chamber 4, and the shearing assembly is provided on the lifting assembly. The lifting assembly is used to facilitate changing the height of the fixing assembly in the working chamber 4, thereby facilitating adjusting the height of the fixing assembly provided in the working chamber 4, thereby facilitating fixing the bent leg of the transformer by adjusting the height of the fixing assembly in the working chamber 4, and facilitating adjusting the length of the trimmed bent leg through the lifting assembly, thereby improving the quality of trimming the bent leg of the transformer, conveniently trimming multiple bent legs of transformers, and trimming the bent legs of transformers of different models, thereby improving the trimming efficiency of the bent legs of the transformer.

[0027] The fixing assembly includes a lifting plate 7 arranged in the working chamber 4 and below the trimming plate 3, a plurality of clamping plates 21 symmetrically arranged in groups of two on the upper end surface of the lifting plate 7 about each column of trimming holes, and a fixing member arranged on the lifting plate 7 and controlling the top sides of each two groups of clamping plates 21 to approach each other. The lifting plate 7 is arranged on the lifting assembly and connected to the shearing assembly.

[0028] like Figure 2-3 As shown, the lifting plate 7 is driven by the lifting assembly to move to the bottom of the bent leg passing through the trimming hole, and then the two clamping plates 21 are driven to approach each other by the fixing member, so that the two clamping plates 21 are brought close to each other, so that the bent leg passing through the trimming hole is clamped and fixed by the clamping plates 21, so as to ensure that the position of the bent leg in the working chamber 4 is relatively fixed, so as to facilitate the subsequent shearing of the bent leg by the shearing assembly, so as to ensure the smoothness of the shearing part of the bent leg, and improve the quality of trimming the bent leg of the transformer.

[0029] When the bent legs of transformers of different models pass through the trimming holes and enter the working chamber 4, the top sides of the clamping plates 21 symmetrically arranged on both sides of each row of multiple trimming holes are close to each other, so as to facilitate the fixation of the bent legs, that is, the bent legs passing through the trimming holes are clamped and fixed, so that the shearing assembly is convenient for trimming the bent legs of transformers of different models, avoiding the tedious steps of replacing the bent leg trimming machines of transformers of different models, and reducing costs. It is convenient to trim the bent legs of multiple transformers and the bent legs of transformers of different models, thereby improving the trimming efficiency of the bent legs of transformers.

[0030] The fixing parts include a rotating rod 18 fixedly arranged on both sides of each clamping plate 21 and rotatably connected to the lifting plate 7 at the bottom end, a pulling block 19 arranged between the top sides of each two groups of clamping plates 21, two linkage rods 20 one end of which is rotatably connected to the two ends of the pulling block 19 and the other end of which is connected to the top of the two rotating rods 18, and a fixed structure arranged on the lifting plate 7 and controlling the pulling block 19 to move toward the lifting plate 7.

[0031] like Figure 2 、 Figure 3 and Figure 5 As shown, the pulling block 19 is driven to move toward the lifting plate 7 by the fixed structure, so that the top ends of the two rotating rods 18 are pulled closer to each other by the two linkage rods 20, thereby driving the two clamping plates 21 closer to each other, so that the bent legs passing through the trimming holes can be clamped and fixed by the two clamping plates 21, thereby facilitating the clamping and fixing of the bent legs of transformers of different models, that is, the clamped and fixed bent legs can be trimmed by the shearing assembly, and the trimming quality of the bent legs can be guaranteed.

[0032] The fixed structure includes a linkage plate 9 parallel to the lifting plate 7 and arranged below the lifting plate 7, a control cylinder 8 whose bottom end is vertically arranged on the lower end surface of the lifting plate 7 and whose output end is connected to the upper end surface of the linkage plate 9, and multiple adjustment rods 12 arranged in the vertical direction and whose top ends are rotatably connected to multiple pulling blocks 19 in a one-to-one correspondence and whose bottom ends are fixedly connected to the side of the linkage plate 9.

[0033] like Figure 2-3As shown, the output end of the cylinder 8 is controlled to drive the linkage plate 9 to move away from the lifting plate 7, thereby facilitating the pulling of multiple pulling blocks 19 toward the lifting plate 7 through multiple adjusting rods 12, thereby facilitating the control of the two clamping plates 21 to clamp and fix the bent legs passing through the trimming holes, thereby facilitating the subsequent trimming of the bent legs.

[0034] The lifting assembly includes a support block 5 arranged in the working chamber 4 and located below the lifting plate 7, and a lifting cylinder 6 whose two bottom ends are symmetrically arranged on the upper end surface of the support block 5 with respect to the lifting plate 7 and whose output ends are fixedly connected to the side surfaces of the lifting plate 7.

[0035] like Figure 2-3 As shown, the output end of the lifting cylinder 6 is used to facilitate adjustment of the position of the bent leg when the clamping plate 21 clamps the bent leg, thereby facilitating adjustment of the trimming length of the transformer bent leg, ensuring the trimming quality of the transformer bent leg, and improving the trimming efficiency of the transformer bent leg.

[0036] The shearing assembly includes two driving rods 10 arranged parallel to the lifting plate 7 and located on both sides of the clamping plate 21, an elastic member arranged on the lower side of the driving rod 10 and connected to the upper end surface of the lifting plate 7, a cutting blade 11 arranged between the two driving rods 10, and a shearing member arranged on the driving rod 10 and driving the cutting blade 11 to move between the two driving rods 10; the lower side of the driving rod 10 is in contact with the top of the rotating rod 18.

[0037] The elastic member includes a telescopic rod 16 whose top end is fixedly arranged at the two ends of the lower side of each driving rod 10 and whose bottom end is vertically fixedly arranged on the upper end surface of the lifting plate 7, and a tension spring 17 which is sleeved on the telescopic rod 16 and whose two ends are fixedly connected to the lower side surface of the driving rod 10 and the upper end surface of the lifting plate 7 respectively.

[0038] like Figure 2-4 As shown, the tension spring 17 is in a tensioned state, thereby having a tendency to pull the drive rod 10 to move toward the lifting plate 7, and the bent foot passes through the trimming hole into the working chamber 4, and the two clamping plates 21 are adjusted to clamp and fix the bent foot passing through the trimming hole. At this time, the top ends of the two rotating rods 18 will be close to each other, and at the same time, the driving rod 10 provided on the lifting plate 7 at the top end of the rotating rod 18 is fitted through the telescopic rod 16. Under the action of the tension spring 17, the driving rod 10 will have a tendency to move toward the lifting plate 7, so that the cutting blade 11 provided between the two driving rods 10 is always in the position on the top side of the clamping plate 21, so as to facilitate the cutting blade 11 to cut along the position where the bent foot is fixed by the clamping plate 21, thereby ensuring the smoothness of the bent foot cutting and improving the shearing effect of the bent foot.

[0039] The shearing piece includes a driving screw 15 arranged in a driving groove 14 opened along the length direction on the adjacent sides of the two driving rods 10, a screw nut arranged in the driving groove 14 and sleeved on the driving screw 15 and connected to the two ends of the cutting blade 11, and a driving motor 13 arranged at one end of each driving rod 10 and with the output end connected to one end of the driving screw 15.

[0040] like Figure 4 As shown, the driving motor 13 drives the driving screw 15 to rotate, thereby driving the screw nut sleeved on the driving screw 15 to move in the length direction of the driving screw 15, thereby driving the cutting blade 11 to move along the length direction between the two driving rods 10, and the cutting blade 11 is attached to the upper side of the clamping plate 21, so that the cutting blade 11 can accurately cut along the position where the bent leg is fixed by the clamping plate 21, thereby improving the trimming quality of the bent leg of the transformer.

[0041] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision high-frequency transformer wire frame cutting device, comprising a trimming table (1) and a trimming mechanism arranged on the trimming table (1), characterized in that: The trimming mechanism comprises a trimming plate (3) arranged in a trimming opening (2) provided on the upper end surface of the trimming table (1), a lifting assembly arranged on the bottom wall of a working chamber (4) of the trimming table (1), a fixing assembly arranged on the lifting assembly for clamping and fixing the bent leg of the transformer, and a shearing assembly arranged on the fixing assembly for cutting the bent leg; The trimming plate (3) is provided with a plurality of trimming holes arranged at equal intervals and for the transformer bent legs to pass through; The fixing assembly comprises a lifting plate (7) arranged in a working chamber (4) and below the trimming plate (3), a plurality of clamping plates (21) arranged in pairs on the upper end surface of the lifting plate (7) symmetrically about each row of trimming holes, and a fixing member arranged on the lifting plate (7) and controlling the top sides of each two groups of clamping plates (21) to approach each other. The lifting plate (7) is arranged on the lifting assembly and connected to the shearing assembly. The fixing member comprises a rotating rod (18) fixedly arranged on both sides of each clamping plate (21) and having its bottom end rotatably connected to the lifting plate (7), a pulling block (19) arranged between the top sides of each two groups of clamping plates (21), two linkage rods (20) each having one end rotatably connected to both ends of the pulling block (19) and the other end connected to the top ends of the two rotating rods (18), and a fixing structure arranged on the lifting plate (7) and controlling the pulling block (19) to move toward the lifting plate (7); The shearing assembly comprises two driving rods (10) arranged in parallel on the lifting plate (7) and respectively located on both sides of the clamping plate (21), an elastic member arranged on the lower side of the driving rod (10) and connected to the upper end surface of the lifting plate (7), a cutting blade (11) arranged between the two driving rods (10), and a shearing member arranged on the driving rod (10) and driving the cutting blade (11) to move between the two driving rods (10); the lower side of the driving rod (10) is in contact with the top end of the rotating rod (18).

2. The high-precision high-frequency transformer wire frame cutting device according to claim 1, characterized in that: The fixed structure comprises a linkage plate (9) arranged parallel to the lifting plate (7) and below the lifting plate (7), a control cylinder (8) with a bottom end vertically arranged on the lower end surface of the lifting plate (7) and an output end connected to the upper end surface of the linkage plate (9), and a plurality of adjustment rods (12) arranged in a vertical direction and with the top ends rotatably connected to the plurality of pulling blocks (19) in a one-to-one correspondence and the bottom ends fixedly connected to the side surfaces of the linkage plate (9).

3. The high-precision high-frequency transformer wire frame cutting device according to claim 1 or 2, characterized in that: The lifting assembly comprises a support block (5) arranged in a working chamber (4) and located below a lifting plate (7), and a lifting cylinder (6) having two bottom ends symmetrically arranged on the upper end surface of the support block (5) with respect to the lifting plate (7) and output ends fixedly connected to the side surfaces of both sides of the lifting plate (7).

4. The high-precision high-frequency transformer wire frame cutting device according to claim 1, characterized in that: The elastic member comprises a telescopic rod (16) whose top end is fixedly arranged at the two ends of the lower side of each driving rod (10) and whose bottom end is vertically fixedly arranged on the upper end surface of the lifting plate (7); and a tension spring (17) which is sleeved on the telescopic rod (16) and whose two ends are fixedly connected to the lower side of the driving rod (10) and the upper end surface of the lifting plate (7).

5. A high-precision high-frequency transformer wire frame cutting device according to claim 1, characterized in that: The shearing piece comprises a driving screw (15) arranged in a driving groove (14) provided along the length direction of adjacent side surfaces of two driving rods (10), a screw nut arranged in the driving groove (14) and sleeved on the driving screw (15) and connected to both ends of the cutting blade (11), and a driving motor (13) arranged at one end of each driving rod (10) and having an output end connected to one end of the driving screw (15).

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