High-frequency transformer pin punching tool

Abstract

The utility model provides a high-frequency transformer pin punching tool which comprises a tool body, a movable plate is arranged on the tool body, the top of the movable plate is rotationally connected with a tool rest, tool sleeves are fixedly arranged on the two sides of the tool rest, a limiting hole is formed in one side of each tool sleeve in a penetrating mode, and the limiting holes are communicated with the tool rest. The top of the movable plate is connected with a limiting plate in an up-down elastic sliding mode, and the bottom of the limiting plate is fixedly connected with a limiting pin matched with the limiting hole in an inserted mode. The cutter rest is rotationally connected to the movable plate, the cutter sleeves are arranged on the two sides of the cutter rest, and the limiting plate for rotationally locking the cutter rest is arranged on the movable plate, so that when different cutters need to be switched, the cutter rest can be quickly turned over by operating the limiting plate, the cutter changing function is achieved, and the cutter changing efficiency in the machining process is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer pin cutting, in particular to a high-frequency transformer pin punching tool. Background Art

[0002] There are multiple pairs of pins on a high-frequency transformer. Since the pins are too long, the excess parts need to be cut off during the production process. In the prior art, when shearing the pins, a cutter driven by a cylinder is usually used for punching. However, for some high-frequency transformers with specific structures, the pins of this type of high-frequency transformer are located on the side of the transformer bottom plate, and the pins are short, and their ends do not exceed the end surface of the transformer bottom plate. Due to the large number of pins, there is a defect of low cutting efficiency.

[0003] At present, the publication number CN218926085U proposes a high-frequency transformer pin punching tool, including a base, a fixed plate at one end of the base, a cylinder at the other end, a guide rod connected to the fixed plate near the cylinder, a movable plate slidably connected to the guide rod, a cutter connected to the movable plate near the fixed plate, and the other side cooperates with the cylinder, a transformer positioning piece is provided on the fixed plate, and a positioning beam that cooperates with the cutter and a positioning groove for placing the transformer bottom plate are provided on the transformer positioning piece. When the transformer bottom plate is located in the positioning groove, the transformer pin fits the positioning beam. The utility model can meet the pin punching requirements of high-frequency transformers with pins distributed on the periphery of the transformer bottom plate and short pin length, replaces the manual shearing method, improves production efficiency, reduces labor intensity, and ensures product quality.

[0004] However, the above-mentioned prior art still has some shortcomings in actual use: 1. Due to the large number of pins to be cut, the cutting edge of the cutter will wear out after long-term use, resulting in uneven cut surfaces of the pins. However, the cutter is mounted on the movable plate by screws, and the screws need to be removed before the cutter can be replaced, resulting in a defect of low tool changing efficiency; 2. The cutter and the knife groove on the movable plate are in a fastened connection state after being docked for a long time, so it is difficult to remove the cutter after the screws are removed, resulting in a defect of great difficulty in tool changing.

[0005] To this end, the utility model provides a high-frequency transformer pin punching tool. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a high-frequency transformer pin punching tool to solve the problems raised in the above background technology. The utility model has the advantages of quick tool change during punching and cutting, and also has the advantage of more labor-saving tool change.

[0007] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a high-frequency transformer pin punching tool, including a tool body, a movable plate is arranged on the tool body, the top of the movable plate is rotatably connected to a tool holder, tool sleeves are fixedly arranged on both sides of the tool holder, a limiting hole is penetrated on one side of the tool sleeve, the top of the movable plate is elastically slidably connected to the limiting plate up and down, and the bottom of the limiting plate is fixedly connected to a limiting pin that is plugged into and matched with the limiting hole.

[0008] Furthermore, a clearance gap is provided on the top of the movable plate, support shafts are welded on both sides of the clearance gap, and connecting holes rotatably connected to the support shafts are provided at both ends of the tool holder.

[0009] Furthermore, a guide hole is opened at the top of the movable plate, a tension spring is arranged in the guide hole, a guide shaft with one end sleeved in the guide hole is welded to the bottom of the limit plate, and the bottom of the guide shaft is welded to one end of the tension spring.

[0010] Furthermore, a handle is welded on the top of the limiting plate.

[0011] Furthermore, the limiting hole is conical, and a conical head matching the taper of the limiting hole is welded to the bottom of the limiting pin.

[0012] Furthermore, a positioning hole connected to the inner cavity of the knife sleeve is opened on one side of the tool holder, a rotating shaft is sleeved in the positioning hole, a frustum located at the bottom of the inner cavity of the knife sleeve is welded to the bottom of the rotating shaft, and a plane is opened on the outer peripheral wall of the frustum.

[0013] Furthermore, an external hexagonal head is welded on one end of the rotating shaft located outside the tool holder.

[0014] Furthermore, the tool sleeves on both sides of the tool holder are connected, and the number of the rotating shaft is one and is located in the middle of the tool holder.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. The utility model is connected to the tool holder by rotating on the movable plate, tool sleeves are arranged on both sides of the tool holder, and a limit plate for locking the rotation of the tool holder is arranged on the movable plate. When it is necessary to switch to different cutting knives, the tool holder can be quickly flipped by operating the limit plate to realize the tool changing function, which greatly improves the efficiency of tool changing during processing.

[0017] 2. The utility model arranges a rotating shaft on one side of the tool holder, and a truncated cone located at the bottom of the tool sleeve is arranged at one end of the rotating shaft. A plane is provided on the outer periphery of the truncated cone. When in use, the plane abuts against the tail of the cutter. When the cutter and the tool sleeve need to be separated, the cutter can be pushed out of the tool sleeve by controlling the rotation of the rotating shaft, which has the advantage of saving effort in disassembling the cutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a high-frequency transformer pin punching tool of the utility model;

[0019] Figure 2 This is a cross-sectional view of the connection between a moving plate, a tool holder and a limit plate of a high-frequency transformer pin punching tool of the utility model;

[0020] Figure 3 This is a cross-sectional view of the cooperation between a tool holder and a tool sleeve of a high-frequency transformer pin punching tool of the utility model;

[0021] In the figure: 1. tool body; 2. movable plate; 21. clearance gap; 211. support shaft; 22. guide hole; 221. tension spring; 3. tool holder; 31. connecting hole; 32. positioning hole; 4. tool sleeve; 41. limiting hole; 5. limiting plate; 51. guide shaft; 52. handle; 6. limiting pin; 61. conical head; 7. rotating shaft; 71. frustum; 711. plane; 72. external hexagonal head. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] See also Figures 1 to 3 The utility model provides a technical solution: a high-frequency transformer pin punching tool, including a tool body 1, on which a movable plate 2 is arranged. The technical solution mainly improves the structure of the movable plate 2, and other undisclosed structures adopt the existing technology mentioned in the background technology. That is to say, when the movable plate 2 moves, it drives the cutter thereon to realize the punching action.

[0024] In the present technical solution, the top of the movable plate 2 is rotatably connected with the tool holder 3. Specifically, a clearance notch 21 is provided at the top of the movable plate 2. Support shafts 211 are welded on both sides of the clearance notch 21. Connection holes 31 rotatably connected with the support shaft 211 are provided at both ends of the tool holder 3. The connection holes 31 and the support shaft 211 can be connected through bearings. The tool holder 3 is used to install a cutter. A knife sleeve 4 is fixedly provided on both sides of the tool holder 3. One knife sleeve 4 is correspondingly installed with one cutter. When in use, the tail end of the cutter is inserted into the knife sleeve 4. It should be noted that the inner size of the knife sleeve is adapted to the size of the cutter insertion, that is, the tail of the cutter will not shake after being inserted into the knife sleeve, and is in a tight state. In specific implementation, the tail of the cutter can be set to a cone, and the inner cavity of the knife sleeve 4 can be set to a cone. When the tool holder 3 rotates, different cutters can be switched to the punching station to achieve fast switching of different cutters.

[0025] A limiting hole 41 is provided through one side of the knife sleeve 4, and the limiting hole 41 is connected to the inner cavity of the knife sleeve 4. A clamping hole is also provided on the side wall of the cutter. After the cutter is inserted into the knife sleeve 4, the clamping hole on the cutter and the limiting hole 41 are in a coaxial state. A limiting plate 5 is elastically slidably connected up and down on the top of the movable plate 2, and a limiting pin 6 that is plugged and matched with the limiting hole 41 is fixedly connected to the bottom of the limiting plate 5. When the limiting plate 5 is close to the knife holder 3, the limiting pin 6 can pass through the limiting hole 41 and the clamping hole on the cutter. At this time, the entire knife holder 3 and the cutter are fixed, and the movable plate 2 is controlled to move, and the cutter currently in the work station performs the punching operation. When it is necessary to switch to a different cutter, the limiting plate 5 is pulled out, and then the knife holder 3 is flipped, wherein the knife holder 3 is a strip-shaped block structure.

[0026] Furthermore, a guide hole 22 is provided at the top of the movable plate 2, and a tension spring 221 is provided in the guide hole 22. A guide shaft 51 with one end sleeved in the guide hole 22 is welded at the bottom of the limit plate 5. The bottom of the guide shaft 51 is welded to one end of the tension spring 221. The tension spring 221 applies elastic tension to the guide shaft 51, and the tension makes the limit plate 5 have a tendency to move toward the movable plate 2. A handle 52 is welded at the top of the limit plate 5, and the handle 52 is an operating component for manually controlling the movement of the limit plate 5.

[0027] In this embodiment, the limiting hole 41 is conical, and a conical head 61 matching the taper of the limiting hole 41 is welded to the bottom of the limiting pin 6. This arrangement allows the conical head 61 to be in a tightly fitted state after entering the limiting hole 41, thereby preventing the tool holder 3 from shaking.

[0028] In this embodiment, a positioning hole 32 connected to the inner cavity of the knife sleeve 4 is provided on one side of the tool holder 3, and a rotating shaft 7 is provided inside the positioning hole 32. A truncated cone 71 located at the bottom of the inner cavity of the knife sleeve 4 is welded to the bottom of the rotating shaft 7. A plane 711 is provided on the outer peripheral wall of the truncated cone 71. When the tail of the cutter is inserted into the knife sleeve 4, it will abut against the plane 711. When the cutter needs to be removed, the rotating shaft 7 is controlled to rotate, and the truncated cone 71 will push the cutter out of the knife sleeve 4, making the removal of the cutter more labor-saving. An outer hexagonal head 72 is welded to one end of the rotating shaft 7 located outside the tool holder 3, and the outer hexagonal head 72 is a part for the wrench to dock and twist.

[0029] Furthermore, the tool sleeves 4 located on both sides of the tool holder 3 are connected, and the number of the rotating shaft 7 is one and is located in the middle of the tool holder 3. At this time, two planes 711 are opened on the truncated table 71. When one rotating shaft 7 is controlled to rotate, the rotation of the truncated table 71 will squeeze the two cutting knives out of the tool sleeve 4 at the same time.

[0030] Working principle: When the transformer pin needs to be punched, the transformer is placed on the right side of the movable plate, and then the transformer positioning piece in the prior art is used for positioning. The movable plate 2 is controlled to move to achieve pin punching. When the cutting blade is worn too much and the punching opening is uneven, the handle 52 is manually pulled outward, the limit plate 5 moves outward, the limit pin 6 drives the conical head 61 to leave the limit hole 41, and the conical head 61 also leaves the clamping hole on the cutter. At this time, the cutter is in the state of being released from restriction. state, but the cutter is still in the clamping state with the knife sleeve 4, use a wrench to twist the shaft 7 through the outer hexagonal head 72, the round table 71 will rotate, the arc surface of the round table 71 will squeeze the tail end of the cutter, so that the cutter is squeezed out relative to the knife sleeve 4, and then directly replace the cutter, after replacement, control the conical head 61 to align with the limit hole 41 and release the handle 52, the tension spring 221 will pull the limit plate 5 to push the conical head 61 into the limit hole 41, the tool holder 3 and the cutter will be fixed on the moving plate 2 at the same time, and the cutter replacement is completed. Similarly, different cutters can be quickly switched during the processing process.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-frequency transformer pin punching tool, comprising a tool body (1), on which a movable plate (2) is arranged, characterized in that: The top of the movable plate (2) is rotatably connected to a tool holder (3), and tool sleeves (4) are fixedly arranged on both sides of the tool holder (3). A limiting hole (41) is penetrated through one side of the tool sleeve (4). The top of the movable plate (2) is elastically slidably connected to a limiting plate (5) in an up-and-down manner, and the bottom of the limiting plate (5) is fixedly connected to a limiting pin (6) that is plugged into and matched with the limiting hole (41).

2. A high-frequency transformer pin punching tool according to claim 1, characterized in that: A clearance notch (21) is provided at the top of the movable plate (2), support shafts (211) are welded on both sides of the clearance notch (21), and connection holes (31) rotatably connected to the support shafts (211) are provided at both ends of the tool holder (3).

3. The high-frequency transformer pin punching tool according to claim 1, characterized in that: A guide hole (22) is provided at the top of the movable plate (2), a tension spring (221) is arranged in the guide hole (22), a guide shaft (51) with one end sleeved in the guide hole (22) is welded to the bottom of the limit plate (5), and the bottom of the guide shaft (51) is welded to one end of the tension spring (221).

4. A high-frequency transformer pin punching tool according to claim 3, characterized in that: A handle bar (52) is welded to the top of the limiting plate (5).

5. The high-frequency transformer pin punching tool according to claim 3, characterized in that: The limiting hole (41) is conical, and a conical head (61) matching the taper of the limiting hole (41) is welded to the bottom of the limiting pin (6).

6. The high-frequency transformer pin punching tool according to claim 1, characterized in that: A positioning hole (32) communicating with the inner cavity of the knife sleeve (4) is provided on one side of the knife holder (3); a rotating shaft (7) is sleeved in the positioning hole (32); a truncated cone (71) located at the bottom of the inner cavity of the knife sleeve (4) is welded to the bottom of the rotating shaft (7); and a plane (711) is provided on the outer peripheral wall of the truncated cone (71).

7. A high-frequency transformer pin punching tool according to claim 6, characterized in that: An external hexagonal head (72) is welded to one end of the rotating shaft (7) located outside the tool holder (3).

8. The high-frequency transformer pin punching tool according to claim 6, characterized in that: The knife sleeves (4) located on both sides of the knife holder (3) are connected, and the number of the rotating shaft (7) is one and is located in the middle of the knife holder (3).

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