Annular magnetic core chamfering machine

Abstract

The utility model discloses an annular magnetic core chamfering machine which comprises a base, a moving part, a positioning part and a cutting part, and a magnetic core is rotationally arranged on the base; the moving part is arranged on the base, and a fixed block is fixed on the moving part; the positioning part is fixed on the fixed block and abuts against the magnetic core through the moving part; and the cutting part is movably arranged on the fixed block. The annular magnetic cores needing to be machined are pre-positioned by arranging the moving part and the positioning part, then chamfering cutting is conducted, the machining position can be matched with the annular magnetic cores with different diameters, inner chamfers of the magnetic cores are machined, and therefore the production cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of annular magnetic cores, in particular to an annular magnetic core chamfering machine. Background Art

[0002] During the production process of annular magnetic cores, the edges and corners are often sharp, which may cause poor pressure resistance during the spraying process or safety accidents during the subsequent coil winding. Therefore, the edges and corners of the magnetic ring need to be chamfered after forming and pressing. Existing chamfering machines can only adapt to one type of annular magnetic core and cannot process annular magnetic cores of different diameters, increasing production costs. Utility Model Content

[0003] In view of the above-mentioned technical deficiencies, the purpose of the utility model is to provide a ring core chamfering machine to solve some or all of the above technical problems.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model provides a ring-shaped magnetic core chamfering machine, comprising:

[0006] A base, on which a magnetic core is rotatably arranged;

[0007] A moving part, the moving part is arranged on the base, and a fixed block is fixed on the moving part;

[0008] A positioning part, the positioning part is fixed on the fixed block, and the positioning part abuts against the magnetic core through the moving part;

[0009] The cutting part is movably arranged on the fixed block.

[0010] The moving part includes a first base plate, a first oil cylinder and a second oil cylinder. A fixed plate is fixed on the base. One end of the first oil cylinder is fixed on the first base plate, and the other end of the first oil cylinder is fixed on the fixed plate. The first base plate is slidably arranged on the base through the first oil cylinder. The second oil cylinder is fixed on the upper end of the first base plate, and the other end of the second oil cylinder can extend to the magnetic core.

[0011] A telescopic rod is also fixed on the first base plate, a fixing block is fixed to the other end of the telescopic rod, and the other end of the second oil cylinder is fixed to the fixing block.

[0012] The positioning part comprises a fixing rod, a pulley and a connecting shaft, wherein the fixing rod is fixed on the fixing block, and the pulley is rotatably arranged at the end of the fixing rod through the connecting shaft, and the pulley can contact the magnetic core.

[0013] The cutting part includes a rotating shaft, a slider, a limit strip and a cutting knife. The rotating shaft is rotatably arranged in a fixed block. A threaded groove is provided at the end of the rotating shaft. A threaded hole matching the threaded groove at the end of the rotating shaft is provided in the slider. The slider is slidably arranged on the rotating shaft through the threaded hole. A through hole is provided on the slider. A limit strip is provided on the fixed block. The limit strip is fixed on the slider through the through hole. The limit strip is slidably arranged in the limit strip. A cutting knife is fixed at the end of the limit strip.

[0014] A second substrate is fixed on the base, a clamping device is fixed on the second substrate, and the magnetic core is rotated by the clamping device.

[0015] The beneficial effect of the utility model is that the annular magnetic core to be processed is pre-positioned by setting the moving part and the positioning part, and then chamfering is performed, so that the processing position can be matched with annular magnetic cores of different diameters, and the inner chamfer of the magnetic core is processed, thereby saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the overall appearance of the ring core chamfering machine.

[0018] Figure 2 for Figure 1 Enlarged schematic diagram of part A in the middle.

[0019] Figure 3 This is a schematic diagram of the explosion of the cutting part.

[0020] Figure 4 This is a cross-sectional view of the pre-positioning of the cutting part.

[0021] Description of reference numerals:

[0022] 11-base, 111-slideway, 12-second substrate, 13-clamping device, 14-magnetic core;

[0023] 21-fixed plate, 22-first base plate, 23-first oil cylinder, 24-second oil cylinder, 25-telescopic rod;

[0024] 31-fixed block, 311-through slot, 312-limiting slot, 32-fixed rod, 33-pulley, 34-connecting shaft;

[0025] 41-rotating shaft, 411-thread groove, 43-motor, 44-limiting plate, 45-slider, 46-limiting strip, 47-cutting knife. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1-Figure 4 As shown, the utility model provides a ring-shaped magnetic core chamfering machine, including a base 11, a second substrate 12 is fixed on the base 11, and a clamping device 13 is fixed on the second substrate 12. In this embodiment, the clamping device 13 is a three-jaw chuck, and magnetic cores 14 of different diameters can be fixed by the three-jaw chuck, and the magnetic core 14 is rotatably arranged on the base 11 by the three-jaw chuck for chamfering. The three-jaw chuck is a prior art and will not be described in detail here.

[0028] Furthermore, the base 11 is also provided with a moving part, a positioning part and a cutting part, wherein the moving part is provided on the base 11, and a fixed block 31 is fixed on the moving part; the positioning part is fixed on the fixed block 31, and the positioning part is moved by the moving part, so that it can contact the magnetic core 14 for positioning before chamfering; the cutting part is movably provided on the fixed block 31, and the magnetic core 14 is chamfered;

[0029] Specifically, the moving part includes a first substrate 22, a first oil cylinder 23 and a second oil cylinder 24. A fixed plate 21 is fixed on the base 11. One end of the first oil cylinder 23 is fixed on the first substrate 22. The output end of the first oil cylinder 23 is fixed on the fixed plate 21. The first substrate 22 is slidably arranged on the base 11 through the first oil cylinder 23. Further, a slide groove 111 is provided on the base 11. The bottom end of the first substrate 22 has a protrusion that cooperates with the slide groove 111, so that the first substrate 22 can be limited when sliding on the base 11; the second oil cylinder 24 is fixed on the upper end of the first substrate 22, and the output end of the second oil cylinder 24 is fixed with a fixed block 31. The fixed block 31 can extend into the circular ring of the magnetic core 14. It should be noted that in this embodiment, the extension direction of the first oil cylinder 23 is perpendicular to that of the second oil cylinder 24.

[0030] Furthermore, a telescopic rod 25 is fixed on the first base plate 22, and a fixing block 31 is fixed to the other end of the telescopic rod 25. The telescopic rod 25 can guide the second oil cylinder 24 and enhance the stability of the second oil cylinder 24.

[0031] Further, the positioning part includes a fixing rod 32, a pulley 33 and a connecting shaft 34. The fixing rod 32 is fixed on the fixing block 31. The pulley 33 is rotatably arranged at the end of the fixing rod 32 through the connecting shaft 34. The pulley 33 can contact the magnetic core 14. When the magnetic core 14 is chamfered, the magnetic core 14 needs to rotate. The pulley 33 can reduce the friction on the magnetic core 14.

[0032] The cutting part includes a rotating shaft 41, a slider 45, a limiting strip 46 and a cutting knife 47. The rotating shaft 41 is rotatably arranged in the fixed block 31. The fixed block 31 is provided with a through groove 311 and a limiting strip 312. The rotating shaft 41 is rotatably arranged in the through groove 311. The limiting strip 46 is slidably arranged in the limiting groove 312. Further, a thread groove 411 is arranged at the end of the rotating shaft 41. The thread groove 411 is located outside the fixed block 31. The slider 45 is provided with a thread groove 411 at the end of the rotating shaft 41. The slider 45 is slidably arranged on the rotating shaft 41, and the other end of the rotating shaft 41 is fixed with a motor 43; the slider 45 is provided with a through hole, and a limit bar 46 is fixed on the slider 45 through the through hole, and a cutting knife 47 is fixed at the end of the limit bar 46. The limit bar 46 can limit the slider 45, so that when the motor 43 drives the rotating shaft 41 to rotate, the slider 45 can slide on the rotating shaft 41 through the threaded groove 411, thereby driving the cutting knife 47 to move, and the magnetic core 14 is chamfered.

[0033] Furthermore, a limiting plate 44 is fixed to the end of the rotating shaft 41 to limit the slider 45 and prevent the slider 45 from being separated from the rotating shaft 41;

[0034] When in use, the annular magnetic core 14 is first installed through the clamping device 13, and then the second oil cylinder 24 moves first to move the positioning part into the circular ring of the magnetic core 14, and then the first oil cylinder 23 drives the first substrate 22 to move, so that the positioning part is positioned; when the pulley 33 hits the inner wall of the circular ring of the magnetic core 14, the first oil cylinder 23 stops moving, completing the positioning of the magnetic core 14, and then the cutting starts, the magnetic core 14 rotates, and the motor 43 drives the cutting knife 47 forward, so as to perform internal chamfering on the magnetic core 14.

[0035] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. Ring core chamfering machine, characterized in that: include: A base (11), wherein a magnetic core (14) is rotatably arranged on the base (11); A moving part, the moving part is arranged on a base (11), and a fixed block (31) is fixed on the moving part; A positioning portion, the positioning portion is fixed on a fixed block (31), and the positioning portion contacts the magnetic core (14) via a moving portion; A cutting part is movably arranged on a fixed block (31).

2. The annular core (14) chamfering machine according to claim 1, characterized in that: The moving part comprises a first base plate (22), a first oil cylinder (23) and a second oil cylinder (24); a fixing plate (21) is fixed on the base (11); one end of the first oil cylinder (23) is fixed on the first base plate (22); the other end of the first oil cylinder (23) is fixed on the fixing plate (21); the first base plate (22) is slidably arranged on the base (11) through the first oil cylinder (23); the second oil cylinder (24) is fixed on the upper end of the first base plate (22); the other end of the second oil cylinder (24) can extend to the magnetic core (14).

3. The annular core (14) chamfering machine according to claim 2, characterized in that: A telescopic rod (25) is also fixed on the first base plate (22), a fixing block (31) is fixed to the other end of the telescopic rod (25), and the other end of the second oil cylinder (24) is fixed to the fixing block (31).

4. The annular core (14) chamfering machine according to claim 1, characterized in that: The positioning portion comprises a fixing rod (32), a pulley (33) and a connecting shaft (34); the fixing rod (32) is fixed on a fixing block (31); the pulley (33) is rotatably arranged at the end of the fixing rod (32) via the connecting shaft (34); and the pulley (33) can contact the magnetic core (14).

5. The annular core (14) chamfering machine according to claim 1, characterized in that: The cutting part comprises a rotating shaft (41), a sliding block (45), a limiting strip (46) and a cutting knife (47); the rotating shaft (41) is rotatably arranged in the fixed block (31); a threaded groove (411) is provided at the end of the rotating shaft (41); a threaded hole matching the threaded groove (411) at the end of the rotating shaft (41) is provided in the sliding block (45); the sliding block (45) is slidably arranged on the rotating shaft (41) through the threaded hole; a through hole is provided on the sliding block (45); a limiting groove (312) is provided on the fixed block (31); the limiting strip (46) is fixed on the sliding block (45) through the through hole; the limiting strip (46) is slidably arranged in the limiting groove (312); and a cutting knife (47) is fixed at the end of the limiting strip (46).

6. The annular core (14) chamfering machine according to claim 1, characterized in that: A second substrate (12) is fixed on the base (11), a clamping device (13) is fixed on the second substrate (12), and the magnetic core (14) rotates via the clamping device (13).

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