Tool clamp for coil framework

Abstract

The tool clamp comprises a bottom plate, a guide column is vertically fixed to the top of the bottom plate, a guide groove is formed in one side of the guide column, a strip-shaped through groove is formed in the other side of the guide column, the strip-shaped through groove is communicated with the guide groove, and a power clamping assembly is arranged at the position, located in the strip-shaped through groove, of the surface of the guide column. The guide column, the sliding block and the power clamping assembly are arranged, the power clamping assembly exerts power to drive the sliding block to move, the sliding block moves to drive the rod body connecting piece and the clamping plate to be close to each other, and therefore the rod body connecting piece and the clamping plate can be tightly clamped. In this way, the coil framework can be clamped from the top and the bottom of the coil framework when the coil framework is horizontally placed, clamping from the outer side face of the coil framework is not needed, side columns on the outer side of the coil framework are exposed through clamping, winding is facilitated, the side columns are protected, and the situation that the production quality of coils is affected due to bending of the side columns is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tool clamping, in particular to a tooling fixture for a coil skeleton. Background Art

[0002] A coil is an important component in a magneto. A magneto is a type of efficient generator device, and the quality of the coil directly affects the power generation efficiency of the magneto. In the production process of the coil, there is a winding step, mainly winding the wire group around the side columns of the coil skeleton.

[0003] The coil skeleton in the coil is an important component. Before winding the wire group, it is necessary to position the coil skeleton through a tooling fixture. In the prior art, the tooling fixture generally needs to place the coil skeleton on a table, and then clamp and position the coil skeleton by extruding the outside of the coil skeleton. In addition to being not easy to wind, this clamping method is also likely to cause the side columns on the coil skeleton to bend under extrusion, reducing the production quality of the coil.

[0004] Therefore, how to provide a tooling fixture for a coil skeleton is an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0005] An object of the utility model is to provide a tooling fixture for a coil skeleton, which solves the problems that the clamping method of the coil skeleton in the prior art is not easy to wind and is also likely to cause the side columns on the coil skeleton to bend, affecting the production quality.

[0006] According to an embodiment of the utility model, a tooling fixture for a coil skeleton includes a bottom plate. A guide post is vertically fixed on the top of the bottom plate. A guide groove is formed on one side of the guide post, and a strip-shaped through groove is arranged on the other side of the guide post. The strip-shaped through groove is communicated with the guide groove. A power clamping assembly is arranged on the surface of the guide post at the position of the strip-shaped through groove. The power clamping assembly includes two groups of positioning plates and a clamping cylinder. The two groups of positioning plates are respectively located on both sides of the strip-shaped through groove. A positioning shaft is arranged between the two groups of positioning plates. Two groups of clamping rods are movably sleeved on the surface of the positioning shaft. Two groups of sliders are movably arranged in the guide groove. Clamping grooves are formed on one side of the two groups of sliders located in the strip-shaped through groove. One ends of the two groups of clamping rods are movably arranged in the clamping grooves, and the other ends of the two groups of clamping rods are provided with a pushing assembly. The clamping cylinder is fixed at one end of the two groups of positioning plates away from the guide post, and the output shaft of the clamping cylinder is fixed to the pushing assembly.

[0007] Two groups of rod connectors are respectively arranged on the same side of the two groups of sliders. One ends of the two groups of rod connectors extend to the outside of the guide groove, and clamping plates are arranged at positions on the opposite sides of the two groups of rod connectors away from the sliders.

[0008] The two groups of rod connectors are horizontally arranged and parallel to each other.

[0009] There are two guide rods longitudinally arranged inside the guide groove, and the positions of the two guide rods are offset from the clamping grooves. Two groups of sliders are movably sleeved on the surfaces of the two guide rods.

[0010] The clamping rod member includes two special-shaped force-applying rods and two connecting rods. The two special-shaped force-applying rods are movably sleeved on the surface of the positioning shaft. One end of each of the two special-shaped force-applying rods is movably inserted into the inside of the clamping groove, and the other ends of the two special-shaped force-applying rods are rotatably connected to the two connecting rods.

[0011] The pushing assembly includes a connecting shaft, a sliding plate and a chute. The chute is opened on the opposite surfaces of the two groups of positioning plates. The sliding plate slides inside the chute. One end of each of the two connecting rods away from the two special-shaped force-applying rods is movably sleeved on the surface of the connecting shaft. The sliding plate is fixed on the two end faces of the connecting shaft. A pushing plate is arranged on one side of the sliding plate close to the clamping cylinder, and the pushing plate is fixed to the output shaft of the clamping cylinder.

[0012] Each rod body connecting member includes a fixed cylinder, a telescopic rod and a locking bolt. The fixed cylinder is fixed on the side surface of the slider. The telescopic rod moves inside the fixed cylinder. One end of the telescopic rod extends to the outside of the fixed cylinder. The locking bolt is arranged at a position on the top of the fixed cylinder away from the slider. The bottom end of the locking bolt passes through the fixed cylinder and closely fits on the surface of the telescopic rod.

[0013] The two telescopic rods are vertically rotatably connected to a rotating shaft through tapered bearings at positions away from the fixed cylinders. The two ends of the rotating shaft respectively extend above and below the telescopic rods. The clamping plates are fixed on the opposite surfaces of the two rotating shafts. A locking assembly is arranged at a position on the surface of one of the rotating shafts away from the clamping plate.

[0014] The locking assembly includes a locking gear, a positioning frame, an arc-shaped locking block, locking teeth and a locking bolt. The locking gear is fixedly sleeved on one of the rotating shafts at the uppermost part of the bottom plate. The positioning frame is fixed on the surface of the telescopic rod close to the locking gear. The arc-shaped locking block moves inside the positioning frame. The locking teeth are fixed on the arc surface of the arc-shaped locking block. The locking teeth are engaged with the locking gear to rotationally lock the rotating shaft. The locking bolt is arranged on one side of the positioning frame away from the locking gear. One end of the locking bolt passes through the positioning frame and closely fits on the arc-shaped locking block. The radian on the arc-shaped locking block is the same as the radian of the locking gear.

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

[0016] By setting the guide posts, sliders and power clamping components, power is applied through the power clamping components to drive the sliders to move. The movement of the sliders drives the rod connectors and the clamping plates to approach each other. In this way, when the coil bobbin is placed flat, the coil bobbin can be clamped from the top and bottom of the coil bobbin, so there is no need to clamp it from the outer side of the coil bobbin. Such clamping not only exposes the upper side columns on the outer side of the coil bobbin for convenient winding, but also protects the side columns and avoids the bending of the side columns, which affects the production quality of the coil.

[0017] By setting the rod connectors, the length of the rod connectors can be adjusted. The change in the length of the rod connectors will drive the change in the position of the clamping plates, making the clamping plates approach or move away from the guide posts. In this way, coil bobbins with different diameters can be clamped, avoiding the contact between the side columns and the guide posts when clamping larger coil bobbins. By setting the rotating shaft and the locking components, the rotating shaft rotates through the tapered bearings. In this way, the coil bobbin in the clamped state can be rotated, facilitating the rotation of other side columns out from the direction of the guide posts and improving the winding efficiency. When the rotating shaft rotates to the appropriate position, the position of the rotating shaft is locked and fixed by the locking components to prevent the continuous rotation of the rotating shaft. Brief Description of the Drawings

[0018] The drawings are used to provide a further understanding of the present invention and form a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0019] Figure 1 It is an overall three-dimensional flow chart of a tooling fixture for a coil bobbin proposed by the present invention.

[0020] Figure 2 It is a cross-sectional three-dimensional flow chart of the positions of the rod connectors, the rotating shaft and the locking components in a tooling fixture for a coil bobbin proposed by the present invention.

[0021] Figure 3 It is a cross-sectional three-dimensional flow chart of the position of the pushing component in a tooling fixture for a coil bobbin proposed by the present invention.

[0022] Figure 4 It is a cross-sectional three-dimensional flow chart of the position of the clamping rod in a tooling fixture for a coil bobbin proposed by the present invention.

[0023] Figure 5 It is a cross-sectional three-dimensional flow chart of the locking components and the rotating shaft in the locked state in a tooling fixture for a coil bobbin proposed by the present invention.

[0024] Attached drawing reference numerals: 1, bottom plate; 2, guide post; 3, guide groove; 4, strip-shaped through groove; 5, power clamping assembly; 6, positioning plate; 7, clamping cylinder; 8, positioning shaft; 9, clamping rod member; 10, slider; 11, clamping groove; 12, pushing assembly; 13, rod body connecting member; 14, clamping plate; 15, guide rod; 16, special-shaped force adding rod; 17, connecting rod; 18, connecting shaft; 19, sliding plate; 20, sliding groove; 21, pushing plate; 22, fixed cylinder; 23, telescopic rod; 24, locking bolt; 25, rotating shaft; 26, locking assembly; 27, locking gear; 28, positioning frame; 29, arc-shaped locking block; 30, locking tooth; 31, locking bolt. Detailed implementation manners

[0025] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0026] Embodiment 1

[0027] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4, including a bottom plate 1, a guide column 2 is vertically fixed on the top of the bottom plate 1, a guide groove 3 is opened on one side of the guide column 2, and a strip through groove 4 is arranged on the other side of the guide column 2, the strip through groove 4 is opened on the side adjacent to the opening side of the guide groove 3, the strip through groove 4 is connected with the guide groove 3, the strip through groove 4 is parallel to the guide groove 3, and the width of the strip through groove 4 is smaller than the width of the guide groove 3, so as to avoid the shaking of the slider 10 sliding in the slide groove 20 and affecting the sliding stability of the slider 10, the surface of the guide column 2 is located at the position of the strip through groove 4 and a power clamping assembly 5 is arranged, and the power clamping assembly 5 includes two groups of positioning plates 6 and a clamping cylinder 7, the two groups of positioning plates 6 are respectively located on both sides of the strip through groove 4, and a positioning shaft 8 is arranged between the two groups of positioning plates 6, and the positioning shaft 8 Two groups of clamping rods 9 are movably sleeved on the surface, and two groups of sliders 10 are movably arranged inside the guide groove 3. The two groups of sliders 10 are located on one side of the strip-shaped through groove 4 and are provided with a clamping groove 11. One end of the two groups of clamping rods 9 are movable inside the clamping groove 11. The clamping rod 9 includes two special-shaped force rods 16 and two connecting rods 17. One end of the special-shaped force rod 16 is arranged in an arc shape, and the other end is similar to the connecting rod 17, and the end face forms a rhombus with the two connecting rods 17. It should be noted that the two ends of the clamping rod 9 are on the same side, the two special-shaped force rods 16 are movably sleeved on the surface of the positioning shaft 8, one end of the two special-shaped force rods 16 is movably inserted into the inside of the clamping groove 11, and the other end of the two special-shaped force rods 16 is rotatably connected with the two connecting rods 17 Then, two guide rods 15 are longitudinally arranged inside the guide groove 3, and the positions of the two guide rods 15 are staggered with the clamping groove 11. The two groups of sliders 10 are movably sleeved on the surfaces of the two guide rods 15. The other ends of the two groups of clamping rods 9 are provided with a pushing assembly 12, which includes a connecting shaft 18, a sliding plate 19 and a sliding groove 20. The sliding groove 20 is opened on the opposite surfaces of the two groups of positioning plates 6. The sliding groove 20 is a rectangular groove for guiding the sliding plate 19. It should be noted that the sliding groove 20 is arranged on the opposite side of the positioning plate 6 and is located on the side of the positioning shaft 8 away from the guide column 2, so that the positioning shaft 8 is stationary. When the pushing assembly 12 is pushed, the clamping rod 9 can be driven to move, and the sliding plate 19 slides inside the sliding groove 20, and the connecting rod 17 is away from the two One end of each of the special-shaped force rods 16 is movably sleeved on the surface of the connecting shaft 18, and the sliding plate 19 is fixed on the two end surfaces of the connecting shaft 18. A pushing plate 21 is provided on the side of the sliding plate 19 close to the clamping cylinder 7. The pushing plate 21 not only levels the two sliding plates 19, but also connects and fixes the pushing plate 21 with the output shaft of the clamping cylinder 7. The clamping cylinder 7 is fixed to one end of the two sets of positioning plates 6 away from the guide column 2. The output shaft of the clamping cylinder 7 is fixed to the pushing component 12. During operation, the coil skeleton is placed on the clamping plate 14 at the bottom so that the iron core on the coil skeleton is located at the position of the clamping plate 14, and the clamping cylinder 7 is started. The clamping cylinder 7 starts and pushes the pushing plate 21 through the output shaft. The pushing plate 21 drives the two sliding plates 19 to move along the slide groove 20.When the two sliding plates 19 slide, they will drive the two connecting rods 17 to rotate through the connecting shaft 18, increasing the angle between the two connecting rods 17. When the two connecting rods 17 rotate, they will push the two special-shaped force-increasing rods 16 to rotate, causing the other ends of the two special-shaped force-increasing rods 16 close to the connecting rods 17 to move away from each other. At this time, the other ends of the two special-shaped force-increasing rods 16 will approach each other. The approaching of this end face will drive the two sliders 10 to slide and approach each other through the clamping grooves 11. When the two sliders 10 approach each other, they will drive the two clamping plates 14 to approach each other through the rod body connecting rod 17, so as to clamp the iron cores at the top and bottom of the coil skeleton through the two clamping plates 14. In this way, by clamping from the top and bottom positions of the coil skeleton, the side columns can be exposed, which not only facilitates winding but also avoids the problem that the side columns are bent under extrusion when clamped from the side;

[0028] Reference Figure 1 、 Figure 2 and Figure 3 On the same side of the two groups of the sliders 10, two groups of rod body connectors 13 are respectively arranged. One ends of the two groups of rod body connectors 13 extend to the outside of the guide groove 3. The two groups of rod body connectors 13 are horizontally arranged and parallel to each other. Each group of rod body connectors 13 includes a fixed cylinder 22, a telescopic rod 23 and a locking bolt 24. The inner wall of the fixed cylinder 22 is square-shaped. The outer shape of the telescopic rod 23 matches the shape of the inner wall of the fixed cylinder 22, so as to prevent the telescopic rod 23 from rotating by itself and affecting clamping. The fixed cylinder 22 is fixed on the side of the slider 10. The telescopic rod 23 moves inside the fixed cylinder 22. One end of the telescopic rod 23 extends to the outside of the fixed cylinder 22. The locking bolt 24 is arranged at a position on the top of the fixed cylinder 22 far from the slider 10. The bottom end of the locking bolt 24 passes through the fixed cylinder 22 and closely fits on the surface of the telescopic rod 23. Clamping plates 14 are arranged at positions on the opposite sides of the two groups of rod body connectors 13 far from the sliders 10. When clamping a larger coil skeleton, first loosen the locking bolt 24, and then pull the telescopic rod 23 to make it extend out of the fixed cylinder 22. The outward movement of the telescopic rod 23 will drive the clamping plate 14 away from the guide post 2. After the clamping plate 14 is adjusted to the appropriate position, rotate the locking bolt 24 in the reverse direction to position the telescopic rod 23. By changing the position of the clamping plate 14, coil skeletons of different sizes can be clamped. It should be noted that this operation can also be carried out after clamping the coil skeleton. The purpose of carrying it out during clamping is to change the position of the clamped coil skeleton.

[0029] Embodiment 2

[0030] Reference Figure 1 、 Figure 2 and Figure 5, at positions on the two telescopic rods 23 far from the fixed cylinder 22, a rotating shaft 25 is vertically rotatably connected through a tapered bearing. It should be noted that protrusions are also provided at the positions corresponding to the tapered bearings on the telescopic rods 23 and the rotating shaft 25. The purpose of this protrusion is to match the tapered bearing and improve the stability of the tapered bearing. The purpose of such a design is to improve the compressive capacity and keep it stable during clamping. If it is connected through an ordinary bearing, the bearing may be damaged or separated under the force of extrusion after clamping, thus affecting the use. The two ends of the rotating shaft 25 respectively extend above and below the telescopic rod 23, and the clamping plate 14 is fixed on the opposite surfaces of the two rotating shafts 25. A locking assembly 26 is provided at a position on the surface of one of the rotating shafts 25 far from the clamping plate 14. The locking assembly 26 includes a locking gear 27, a positioning frame 28, an arc-shaped locking block 29, locking teeth 30 and a locking bolt 31. The locking gear 27 is fixedly sleeved on one of the rotating shafts 25 at the uppermost position on the bottom plate 1. The positioning frame 28 is fixed on the surface of the telescopic rod 23 near the locking gear 27. The arc-shaped locking block 29 is movable within the positioning frame 28. The locking teeth 30 are fixed on the arc surface of the arc-shaped locking block 29. The locking teeth 30 are engaged with the locking gear 27 to rotationally lock the rotating shaft 25. The locking bolt 31 is arranged on one side of the positioning frame 28 far from the locking gear 27. One end of the locking bolt 31 passes through the positioning frame 28 and closely adheres to the arc-shaped locking block 29. The radian of the arc-shaped locking block 29 is the same as that of the locking gear 27, so that the locking teeth 30 have a higher degree of engagement with the locking gear 27 and improve the locking performance. When operating, it is necessary to rotate the locking bolt 31 to make it away from the arc-shaped locking block 29, and then the arc-shaped locking block 29 moves away from the locking gear 27, and then the rotating shaft 25 can be rotated. It should be noted that this operation is carried out after clamping the coil skeleton, and the purpose is to drive the coil skeleton to rotate. After the rotating shaft 25 rotates, the coil skeleton is driven to rotate through the clamping plate 14. When the other side columns of the coil skeleton are rotated to a position far from the guiding column 2 and need to be locked and positioned, the locking bolt 31 is rotated in the reverse direction to make it move to squeeze the arc-shaped locking block 29, so that the arc-shaped locking block 29 drives the locking teeth 30 to engage with the locking gear 27, and thus the position of the rotating shaft 25 can be locked and positioned. This position is mainly to rotate the coil skeleton in the clamped state to change the position of the coil skeleton, so as to facilitate the winding operation of the coil skeleton. It should be noted that this fixture structure can not only perform winding operations, but also clamp the coil skeleton for maintenance and repair operations.

[0031] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A fixture for a coil skeleton, characterized in that: The invention comprises a bottom plate (1), a guide column (2) is vertically fixed on the top of the bottom plate (1), a guide groove (3) is provided on one side of the guide column (2), a strip-shaped through groove (4) is provided on the other side of the guide column (2), the strip-shaped through groove (4) is connected with the guide groove (3), a power clamping assembly (5) is provided on the surface of the guide column (2) at the position of the strip-shaped through groove (4), and the power clamping assembly (5) comprises two groups of positioning plates (6) and a clamping cylinder (7), the two groups of positioning plates (6) are respectively located on both sides of the strip-shaped through groove (4), and a clamping cylinder (7) is provided between the two groups of positioning plates (6). A positioning shaft (8) is provided, and two groups of clamping rods (9) are movably sleeved on the surface of the positioning shaft (8), and two groups of sliders (10) are movably provided inside the guide groove (3), and the two groups of sliders (10) are located on one side of the strip-shaped through groove (4) and are provided with a clamping groove (11), and one end of the two groups of clamping rods (9) is movable inside the clamping groove (11), and the other end of the two groups of clamping rods (9) is provided with a pushing assembly (12), and a clamping cylinder (7) is fixed to one end of the two groups of positioning plates (6) away from the guide column (2), and the output shaft of the clamping cylinder (7) is fixed to the pushing assembly (12); Two groups of rod body connecting members (13) are respectively arranged on the same side of the two groups of slide blocks (10), one end of the two groups of rod body connecting members (13) extends to the outside of the guide groove (3), and a clamping plate (14) is arranged at a position of the two groups of rod body connecting members (13) facing away from the slide blocks (10).

2. A fixture for a coil skeleton according to claim 1, characterized in that: The two groups of rod connecting members (13) are arranged horizontally and parallel to each other.

3. A fixture for a coil skeleton according to claim 2, characterized in that: Two guide rods (15) are longitudinally arranged inside the guide groove (3), the positions of the two guide rods (15) are staggered from the clamping groove (11), and the two groups of slide blocks (10) are movably sleeved on the surfaces of the two guide rods (15).

4. A fixture for a coil skeleton according to claim 3, characterized in that: The clamping rod member (9) comprises two special-shaped force rods (16) and two connecting rods (17). The two special-shaped force rods (16) are movably sleeved on the surface of the positioning shaft (8). One end of the two special-shaped force rods (16) is movably inserted into the interior of the clamping groove (11), and the other end of the two special-shaped force rods (16) is rotatably connected to the two connecting rods (17).

5. A fixture for a coil skeleton according to claim 4, characterized in that: The pushing assembly (12) comprises a connecting shaft (18), a sliding plate (19) and a sliding groove (20). The sliding groove (20) is provided on opposite surfaces of the two sets of positioning plates (6). The sliding plate (19) slides inside the sliding groove (20). One end of the connecting rod (17) away from the two special-shaped force rods (16) is movably sleeved on the surface of the connecting shaft (18). The sliding plate (19) is fixed to the two end surfaces of the connecting shaft (18). A pushing plate (21) is provided on the side of the sliding plate (19) close to the clamping cylinder (7). The pushing plate (21) is fixed to the output shaft of the clamping cylinder (7).

6. A fixture for a coil skeleton according to claim 5, characterized in that: Each group of the rod body connecting parts (13) comprises a fixed cylinder (22), a telescopic rod (23) and a locking bolt (24); the fixed cylinder (22) is fixed to the side of the slider (10); the telescopic rod (23) moves inside the fixed cylinder (22); one end of the telescopic rod (23) extends to the outside of the fixed cylinder (22); the locking bolt (24) is arranged at a position where the top of the fixed cylinder (22) is away from the slider (10); and the bottom end of the locking bolt (24) passes through the fixed cylinder (22) and is tightly attached to the surface of the telescopic rod (23).

7. A fixture for a coil skeleton according to claim 6, characterized in that: A rotating shaft (25) is vertically rotatably connected to a position of the two sets of telescopic rods (23) away from the fixed cylinder (22) via a tapered bearing, and two ends of the rotating shaft (25) extend to the top and bottom of the telescopic rod (23) respectively. The clamping plate (14) is fixed to the opposite surfaces of the two rotating shafts (25), and a locking assembly (26) is provided on the surface of one of the rotating shafts (25) at a position away from the clamping plate (14).

8. A fixture for a coil skeleton according to claim 7, characterized in that: The locking assembly (26) comprises a locking gear (27), a positioning frame (28), an arc-shaped locking block (29), a locking tooth (30) and a locking bolt (31); the locking gear (27) is fixedly sleeved on a rotating shaft (25) at the top of the bottom plate (1); the positioning frame (28) is fixed on a surface of the telescopic rod (23) close to the locking gear (27); the arc-shaped locking block (29) moves in the positioning frame (28); the locking tooth (30 ... The locking gear (30) is fixed on the arc surface of the arc-shaped locking block (29), the locking teeth (30) mesh with the locking gear (27) to lock the rotation of the rotating shaft (25), the locking bolt (31) is arranged on the side of the positioning frame (28) away from the locking gear (27), one end of the locking bolt (31) passes through the positioning frame (28) and is tightly fitted on the arc-shaped locking block (29), and the arc of the arc-shaped locking block (29) is the same as the arc of the locking gear (27).

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