Annular array arc-shaped sheet-shaped rhombic coil stacking positioning tool

Abstract

The utility model discloses a kind of annular array type arc sheet shape rhombic coil stacking positioning tool, including the center cylinder of overall cylindrical, the side wall of center cylinder is annularly provided with sliding hole, one positioning column is slidably connected in each sliding hole, and the end of positioning column away from the center axis of center cylinder is positioning end;The stacking positioning tool includes positioning state and material withdrawal state;When positioning state, the positioning end of all positioning columns is all stretched out the outside wall of center cylinder;When material withdrawal state, all positioning end is housed in sliding hole.Compared with prior art, the utility model changes the center cylinder of cylindrical into traditional planar coil stacking tool, and under positioning state, the positioning column of protruding outside center cylinder is distributed, to provide condition for realizing that multiple arc sheet shape rhombic coil is stacked along circle.In material withdrawal state, positioning column is withdrawn to center cylinder, does not affect that circular coil is along the axial direction of center cylinder and is taken out, facilitate to realize unloading.

Description

Technical Field

[0001] This utility model belongs to the technical field of hollow cup motor coil manufacturing equipment, and particularly relates to a ring array type arc-shaped sheet rhomboid coil stacking and positioning fixture. Background Technology

[0002] In the development of a new rhomboid sheet coil rolling scheme, a tooling is needed for stacking multiple arc-shaped sheet rhomboid coils. This tooling can satisfy the requirement that multiple arc-shaped sheet rhomboid coils be stacked in a circle (Note: This paragraph is only used to illustrate the development background of this utility model and does not constitute an existing technical solution).

[0003] The existing stacking fixture includes a flat support plate and positioning posts that are fixed to the support plate in a straight line. The distance between adjacent positioning posts is equal. The positioning posts are used to ensure the stacking accuracy of multiple rhomboid sheet coils. In specific implementation, the distance between the positioning posts is set according to the specifications and shape of the rhomboid sheet coils.

[0004] The shortcoming of the existing technology is that the existing stacking fixture can only be used to stack multiple rhomboid coils in a straight line, and is only applicable to the traditional rhomboid sheet coil rolling process (the traditional rhomboid sheet coil rolling process includes: planar sheet coil stacking, coarse rolling and fine rolling), and cannot provide a basis for forming a ring array stacked shape for arc-shaped sheet rhomboid coils.

[0005] Therefore, it is necessary to provide a new ring array type arc-shaped sheet-like rhomboid coil stacking positioning fixture to solve the above-mentioned technical problems. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] Based on this, the present invention provides a ring array type arc-shaped sheet rhomboid coil stacking positioning fixture to solve the technical problem that existing coil stacking fixtures cannot provide a basis for forming a ring array type stacking shape for arc-shaped sheet rhomboid coils.

[0008] (II) Technical Solution

[0009] To solve the above-mentioned technical problems, this utility model proposes a ring-array type arc-shaped sheet-like rhombic coil stacking positioning fixture, including a central cylinder that is cylindrical in shape. The side wall of the central cylinder is provided with n sliding holes passing through it, where n is a natural number ≥ 3. A positioning post is slidably connected within each sliding hole, and the end of the positioning post away from the central axis of the central cylinder is the positioning end. The ring-array type arc-shaped sheet-like rhombic coil stacking positioning fixture includes a positioning state and a retraction state. When the ring-array type arc-shaped sheet-like rhombic coil stacking positioning fixture is in the positioning state... The positioning ends of all the positioning posts extend out of the outer wall of the central cylinder; when the annular array arc-shaped sheet rhombic coil stack positioning fixture is in the unloading state, all the positioning ends are received in the sliding hole; the annular array arc-shaped sheet rhombic coil stack positioning fixture also includes a central abutment rod with one end extending into the central cylinder, the central abutment rod including a pushing section that is integrally shaped like a frustum cone, the pushing section being used to push all the positioning posts out of the sliding hole, and to make the annular array arc-shaped sheet rhombic coil stack positioning fixture in the positioning state.

[0010] Preferably, the n sliding holes are located at the same height of the central cylinder, and the n sliding holes are evenly distributed with the central axis of the central cylinder as the center.

[0011] Preferably, the central abutment further includes a sliding section fixed to the lower part of the pushing section and a connecting section fixed to the lower part of the sliding section; both the pushing section and the sliding section are located inside the central cylinder, and the connecting section is located below the central cylinder; the pushing section is generally shaped like a frustum of a cone, smaller at the top and larger at the bottom; the sliding section is cylindrical and slidably connected to the inner wall of the central cylinder; the annular array arc-shaped sheet rhombic coil stacked positioning fixture further includes a telescopic drive connected to the connecting section and used to drive the central abutment to slide along the axial direction of the central cylinder; the end of the positioning post away from the positioning end is the abutting end; when the annular array arc-shaped sheet rhombic coil stacked positioning fixture is in the positioning state, the upper part of the sliding section abuts against the abutting end.

[0012] Preferably, the positioning post includes a connected positioning main body segment and a post head segment; the positioning main body segment is cylindrical in shape, the post head segment is cylindrical in shape, the positioning main body segment and the post head segment are coaxially arranged, and the diameter of the post head segment is larger than the diameter of the positioning main body segment; the post head segment is located inside the central cylinder, and the positioning main body segment is slidably connected to the sliding hole; the side of the post head segment away from the positioning main body segment is the positioning end; the side of the positioning main body segment away from the post head segment is the abutting end; the positioning end and the outer surface of the post head segment are connected by an arc surface transition.

[0013] Preferably, the central abutment further includes a spring-loaded section fixed to the top of the pushing section, the lower part of which is provided with a raised support step ring; the annular array arc-shaped sheet-like rhomboid coil stacking positioning fixture further includes a locking head unit, the locking head unit including: a pressure plate, a compression spring and a spring pressure ring; the pressure plate is fixed to the top of the spring-loaded section; the spring pressure ring is generally a downward-opening circular cap, the upper part of the spring pressure ring is movably sleeved on the support step ring, the inner side of the spring pressure ring and the outer side of the spring-loaded section form a locking gap, and the outer bottom of the spring pressure ring... The part has an inclined guide surface; the compression spring is sleeved outside the spring section, and the upper and lower ends of the compression spring abut against the pressure plate and the spring pressure ring respectively; the annular array arc-shaped sheet-like rhomboid coil stacking positioning fixture also includes a transition state. When the annular array arc-shaped sheet-like rhomboid coil stacking positioning fixture is in the transition state, the compression spring is in a compressed state under the squeezing action of the column head section; when the annular array arc-shaped sheet-like rhomboid coil stacking positioning fixture is in the unloading state, the compression spring is in a relaxed state, and the column head section is engaged in the column head engagement gap.

[0014] Preferably, the annular array type arc-shaped sheet-like rhombic coil stacking positioning fixture further includes an overall disc-shaped support base, the support base is provided with a recessed central column insertion groove, the lower part of the central column is inserted into and fixed in the central column insertion groove; the annular array type arc-shaped sheet-like rhombic coil stacking positioning fixture further includes a rotating unit connected to the support base and used to drive the support base to rotate.

[0015] Preferably, the rotating unit includes: a rotating drive, a driving gear, and a driven gear; the driven gear is a cylindrical gear coaxially arranged with the supporting chassis, the cylindrical gear is fixed to the lower part or the outer part of the supporting chassis, the driving gear meshes with the driven gear, the rotating drive is located on one side of the supporting chassis, and the rotating drive is connected to the driving gear and used to drive the driving gear to rotate.

[0016] Preferably, the annular array type arc-shaped sheet rhombic coil stacking positioning fixture further includes: a base plate, a fixing ring fixed above the base plate, and a bushing disposed inside the fixing ring. The lower part of the bushing is rotatably connected to the fixing ring via a bearing, and the upper part of the bushing is fixedly connected to a driven gear and a supporting chassis. The bushing is a cylindrical shape with openings at the top and bottom. The connecting section and the telescopic drive extend into the bushing from the upper and lower ends, respectively.

[0017] Preferably, a connector mounting bracket is fixed to the lower part of the base plate, and an air pipe connector is provided on the connector mounting bracket. The telescopic drive is a cylinder, and a rotary joint for introducing pressurized gas into the cylinder is provided at the bottom of the cylinder. A connecting air pipe is provided between the air pipe connector and the rotary joint.

[0018] Preferably, the annular array arc-shaped sheet-like rhombic coil stacking positioning fixture further includes a sensor mounting bracket. The upper part of the sensor mounting bracket is fixed to the connecting section, and the lower part of the sensor mounting bracket extends downward from the bushing. A sensing ring is fixedly installed below the sensor mounting bracket. A lifting position sensor is provided on one side of the sensing ring to cooperate with the sensing ring and to detect the lifting position of the central abutment. The lifting position sensor includes a first sensor and a second sensor arranged vertically, which are respectively installed on the lower part of the base plate. The annular array arc-shaped sheet-like rhombic coil stacking positioning fixture further includes a third sensor located on one side of the driven gear and used to detect the rotation angle of the driven gear. The driven gear is provided with a sensing sheet that cooperates with the third sensor.

[0019] (III) Beneficial Effects

[0020] Compared with existing technologies, this invention replaces the traditional planar coil stacking fixture with a cylindrical central cylinder. In the positioning state, protruding positioning posts are distributed on the outer side of the central cylinder, providing conditions for stacking multiple arc-shaped, diamond-shaped coils along a circle. In the unloading state, the positioning posts retract into the central cylinder, without affecting the axial release of the wound coils along the central cylinder, facilitating unloading. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional illustration of the present invention. Figure 1 ;

[0023] Figure 2 This is a three-dimensional illustration of the present invention. Figure 2 ;

[0024] Figure 3 This is a schematic cross-sectional view of the present invention;

[0025] Figure 4 for Figure 3A partial enlarged view of point A (also a schematic diagram of the positioning state of this utility model);

[0026] Figure 5 This is a schematic diagram of the transition state of this utility model;

[0027] Figure 6 This is a schematic diagram of the material unloading state of this utility model;

[0028] Figure 7 This is the usage state of the present utility model. Figure 1 (The inner diagonal point A of the arc-shaped rhomboid coil is attached to the positioning post; the inner diagonal point B is not yet attached to the positioning post.)

[0029] Figure 8 This is the usage state of the present utility model. Figure 2 (The inner diagonal points A and B of the arc-shaped rhomboid coil are simultaneously attached to the positioning post, and multiple arc-shaped rhomboid coils together form a rolled coil.)

[0030] Figure 9 This is a three-dimensional schematic diagram of the overall structure of the arc-shaped, sheet-like, rhomboid coil in this utility model;

[0031] Figure 10 This is a top view of the arc-shaped, sheet-like rhomboid coil in this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Arc-shaped, sheet-like, rhomboid coil;

[0034] 2. Annular array type arc-shaped sheet-like rhomboid coil stacking positioning fixture;

[0035] 11. Central cylinder; 161. Support base; 1611. Central cylinder insertion slot;

[0036] 21. Positioning pin; 22. Center stop bar; 23. Telescopic drive; 24. Base plate; 25. Fixing ring; 26. Bushing; 27. Column head snap-fit ​​gap; 28. Spring pressure ring; 29. ​​Third sensor; 30. Connector mounting bracket; 31. Air pipe connector; 32. Rotary joint; 34. Sensor mounting bracket; 35. Sensing ring; 36. First sensor; 37. Second sensor; 38. Pressure plate; 39. Compression spring; 40. Rotary drive; 41. Driving gear; 42. Driven gear;

[0037] 112. Sliding hole;

[0038] 211. Positioning main section; 212. Column head section;

[0039] 221. Spring-loaded section; 222. Pushing section; 223. Sliding section; 224. Connecting section;

[0040] 281. Guide surface;

[0041] 2111, Connecting end;

[0042] 2121, Positioning end; 2122, Arc surface;

[0043] 2211. Supporting step ring. Detailed Implementation

[0044] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0045] The following is in conjunction with the appendix Figure 1-10 The circular array type arc-shaped sheet rhomboid coil stacking positioning fixture 2 of this utility model will be further described.

[0046] Please refer to this carefully. Figure 1-4 and Figure 6 ,in, Figure 4 The hollow arrow in the image indicates the direction of movement of the central abutment 22. Figure 4 The direction of the hollow arrow in the image is the direction of the external power extrusion positioning column 21.

[0047] This utility model discloses a ring-array type arc-shaped sheet-like rhombic coil stacking positioning fixture 2, including a central cylinder 11 that is cylindrical in shape. The side wall of the central cylinder 11 is provided with n sliding holes 112 passing through it, where n is a natural number ≥ 3. A positioning post 21 is slidably connected within each sliding hole, with the end of the positioning post 21 away from the central axis of the central cylinder 11 being the positioning end 2121. The ring-array type arc-shaped sheet-like rhombic coil stacking positioning fixture 2 includes a positioning state and a retraction state. When the ring-array type arc-shaped sheet-like rhombic coil stacking positioning fixture 2 is in the positioning state, all... The positioning ends 2121 of the positioning posts 21 all extend out of the outer wall of the central cylinder 11; when the annular array arc-shaped sheet rhombic coil stack positioning fixture 2 is in the unloading state, all positioning ends 2121 are received in the sliding hole; the annular array arc-shaped sheet rhombic coil stack positioning fixture 2 also includes a central abutment 22 with one end extending into the central cylinder 11. The central abutment 22 includes a pushing section 222 that is shaped like a frustum cone. The pushing section 222 is used to push all the positioning posts 21 out of the sliding hole 112 and make the annular array arc-shaped sheet rhombic coil stack positioning fixture 2 in the positioning state.

[0048] It should be noted that the annular array type arc-shaped sheet-like rhombic coil stacking and positioning fixture 2 of this utility model is used in a novel rhombic sheet-like coil rolling scheme, which is different from the traditional rhombic sheet-like coil rolling scheme. The traditional rhombic sheet-like coil rolling scheme involves stacking planar rhombic coils sequentially along a straight line and then rolling them into a circle. The novel rolling scheme includes:

[0049] Step 1, please refer to it carefully. Figure 9-10 The planar rhomboid sheet coil is first pre-bent into an arc-shaped rhomboid sheet coil; wherein: the inner hole of the arc-shaped rhomboid sheet coil is rhomboid, including the inner diagonal points A and B arranged opposite each other in the transverse direction.

[0050] Step 2, please refer to it carefully. Figure 7 Taking n=13 as an example, 13 arc-shaped rhomboid coils are arranged in a circular array along the same cylinder (in this embodiment, the central cylinder 11). Among them, the inner diagonal point A of the arc-shaped rhomboid coil is attached to the positioning post 21; the inner diagonal point B is not attached to the positioning post 21.

[0051] Step 3, please refer to it carefully. Figure 8 All the arc-shaped, sheet-like rhomboid coils are wound and stacked around the central cylinder 11 to form a whole coil; wherein: the rhomboid sheet-like coils are sleeved on the two positioning posts 21, and the inner diagonal points A and B are in contact with the positioning posts 21 respectively.

[0052] Step 4: The coiled wire wrapped around the central cylinder 11 is lifted upwards a certain distance to provide conditions for removing the coiled wire from the central cylinder 11.

[0053] The ring array type arc-shaped sheet-like rhomboid coil stacking positioning fixture 2 in this embodiment is mainly used to provide conditions for realizing the above steps S2-S3. The functions of each component in this embodiment are described as follows.

[0054] The central cylinder 11 serves as a support for the stacking of multiple rhomboid coils. The cylindrical shape of the central cylinder 11 provides the foundation for the circular array of stacked arc-shaped rhomboid coils. A central abutment 22 is positioned along the axial direction of the central cylinder 11. The extension and retraction direction of the positioning posts 21 is consistent with the radial direction of the central cylinder 11. When the central abutment 22 extends, the frustum-shaped pushing section 222 pushes all the positioning posts 21 out of the sliding hole 112. The circular array arc-shaped rhomboid coil stacking positioning fixture 2 is in a positioned state. An external power source can be used to mount the rhomboid coils onto the two positioning posts 21. In practice, the length of the positioning posts 21 extending beyond the outer wall of the central cylinder 11 is sufficient to securely hold the arc-shaped rhomboid coils 100. By selecting a regular stacking scheme, a circular array stacking shape can be obtained, forming a rolled coil.

[0055] When the center abutment 22 retracts, the positioning end 2121 is pressed inward by external power, so that the positioning end 2121 retracts into the sliding hole 112. The positioning post 21 will not restrict the axial movement of the coil, which is conducive to taking out the coil axially upward along the center cylinder 11, that is, providing conditions for implementing the above step 4.

[0056] Compared with the prior art, this utility model replaces the traditional planar coil stacking fixture with a cylindrical central cylinder 11. In the positioning state, protruding positioning posts 21 are distributed on the outer side of the central cylinder 11, providing conditions for multiple arc-shaped sheet-like rhomboid coils 100 to be stacked in a circle. In the unloading state, the positioning posts 21 retract into the central cylinder 11, without affecting the unwinding of the coil along the axial direction of the central cylinder 11, thus facilitating unloading.

[0057] According to a specific embodiment of the present invention, n sliding holes 112 are located at the same height of the central cylinder 11, and the n sliding holes 112 are evenly distributed with the central axis of the central cylinder 11 as the center.

[0058] In this embodiment, the structure is used to ensure that all the arc-shaped sheet-like rhomboid coils 100 are stacked evenly at the same height, so as to improve the accuracy of coil winding.

[0059] According to a specific embodiment of this utility model, the central abutment 22 further includes a sliding section 223 fixed to the lower part of the pushing section 222 and a connecting section 224 fixed to the lower part of the sliding section 223; the pushing section 222 and the sliding section 223 are both located inside the central cylinder 11, and the connecting section 224 is located below the central cylinder 11. The pushing section 222 is generally shaped like a frustum of a cone, which is smaller at the top and larger at the bottom; the sliding section 223 is cylindrical and is slidably connected to the inner wall of the central cylinder 11; the annular array arc-shaped sheet rhombic coil stacked positioning fixture 2 further includes a telescopic drive 23 connected to the connecting section 224 and used to drive the central abutment 22 to slide along the axial direction of the central cylinder 11; the end of the positioning post 21 away from the positioning end 2121 is the abutment end 2111; when the annular array arc-shaped sheet rhombic coil stacked positioning fixture 2 is in the positioning state, the upper part of the sliding section 223 abuts against the abutment end 2111.

[0060] In this embodiment, the telescopic drive 23 is connected to the central abutment 22 via the connecting section 224 to provide lifting power for the central abutment 22. When the central abutment 22 rises, the outer side of the pushing section 222 acts on the abutment end 2111 from bottom to top, pushing the positioning post 21 to extend outward. When the central abutment 22 continues to rise until the sliding section 223 replaces the pushing section 222 and abuts the abutment end 2111, the central abutment 22 stops rising. Since the sliding section 223 is a cylindrical surface, compared with the conical structure of the pushing section 222, the contact range between the sliding section 223 and the abutment end 2111 is larger. Using this state as the positioning state can ensure the stability of the positioning post 21.

[0061] According to a specific embodiment of this utility model, the positioning column 21 includes a positioning main body segment 211 and a column head segment 212 connected together; the positioning main body segment 211 is cylindrical in shape, the column head segment 212 is cylindrical in shape, the positioning main body segment 211 and the column head segment 212 are coaxially arranged, and the diameter of the column head segment 212 is larger than the diameter of the positioning main body segment 211; the column head segment 212 is located inside the central cylinder 11, and the positioning main body segment 211 is slidably connected to the sliding hole 112; the side of the column head segment 212 away from the positioning main body segment 211 is the positioning end 2121; the side of the positioning main body segment 211 away from the column head segment 212 is the abutment end 2111; the positioning end 2121 and the outer surface of the column head segment 212 are transitionally connected through an arc surface 2122.

[0062] In this embodiment, the positioning post 21 is a bolt without threads, and the head section 212 has a large diameter to prevent it from coming loose. The positioning body section 211 and the head section 212 are connected by a smooth transition. This smooth transition structure facilitates contact with the guide surface 281 and allows for flexible compression of the guide surface 281 upwards.

[0063] According to a specific embodiment of this utility model, the central abutment 22 further includes a spring-loaded section 221 fixed to the top of the pushing section 222, and the lower part of the spring-loaded section 221 is provided with a raised support step ring 2211; the ring array type arc-shaped sheet-like rhomboid coil stacking positioning fixture 2 also includes a locking head unit, which includes: a pressure plate 38, a compression spring 39 and a spring pressure ring 28; the pressure plate 38 is fixed to the top of the spring-loaded section 221; the spring pressure ring 28 is generally a round cover with an opening facing downwards, and the upper part of the spring pressure ring 28 is movably sleeved on the support step ring 2211, and the inner side of the spring pressure ring 28 and the outer side of the spring-loaded section 221 form a locking gap 27 between the locking head and the outer side of the spring pressure ring 28, and the bottom of the outer side of the spring pressure ring 28 has an inclined guide surface 281; the compression spring 39 is sleeved on the spring-loaded section 221, and the upper and lower ends of the compression spring 39 abut against the pressure plate 38 and the spring pressure ring 28 respectively.

[0064] Please refer to this carefully. Figure 5 , Figure 5 The hollow arrow indicates the direction of movement of the central abutment 22. The annular array type arc-shaped sheet-like rhomboid coil stacking positioning fixture 2 also includes a transition state. When the annular array type arc-shaped sheet-like rhomboid coil stacking positioning fixture 2 is in the transition state, the compression spring 39 is in a compressed state under the squeezing action of the column head section 212; when the annular array type arc-shaped sheet-like rhomboid coil stacking positioning fixture 2 is in the unloading state, the compression spring 39 is in a relaxed state, and the column head section 212 is engaged in the column head engagement gap 27.

[0065] In this embodiment, the spring section 221 is used to install the locking head unit. The two ends of the pressure plate 38 and the spring pressure ring 28 respectively abut against the compression spring 39. The pressure plate 38 is a fixed structure, and the spring pressure ring 28 is a movable structure. By squeezing the spring pressure ring 28, the compression spring 39 can be compressed.

[0066] When the annular array type arc-shaped sheet-like rhomboid coil stacking positioning fixture 2 is in the positioning state, the telescopic drive 23 drives the central abutment 22 together with the locking column unit downward, so that the column head section 212 presses the guide surface 281, so that the spring pressure ring 28 compresses the compression spring 39 upward, and the compression spring 39 accumulates elastic force, so that the annular array type arc-shaped sheet-like rhomboid coil stacking positioning fixture 2 is in the transition state.

[0067] When the annular array arc-shaped sheet rhombic coil stacking positioning fixture 2 is in the transition state, under the action of the external device, the positioning end 2121 is squeezed along the axial direction of the positioning column 21 until the column head section 212 moves to the bottom of the column head snap-fit ​​gap 27. Under the action of the elastic force of the compression spring 39, the spring pressure ring 28 is pushed down, and the column head section 212 is snapped into the column head snap-fit ​​gap 27, realizing the anti-retraction function of the column head section 212. The annular array arc-shaped sheet rhombic coil stacking positioning fixture 2 switches to the unloading state.

[0068] In this embodiment, a locking column unit is added so that when the ring array arc-shaped sheet rhomboid coil stacking positioning fixture 2 is in the unloading state, the column head section 212 can be locked in the column head locking gap 27 to prevent the positioning column 21 from moving. This ensures that even if there is an external impact during operation, the positioning column 21 can be firmly fixed and will not protrude from the sliding hole 112, thus ensuring the smooth unloading of the coil.

[0069] According to a specific embodiment of the present invention, the annular array type arc-shaped sheet rhombic coil stacking positioning fixture 2 further includes a support base 161 that is generally in the shape of a disc. The support base 161 is provided with a recessed central column insertion groove 1611, and the lower part of the central column 11 is inserted into and fixed in the central column insertion groove 1611. The annular array type arc-shaped sheet rhombic coil stacking positioning fixture 2 also includes a rotating unit connected to the support base 161 and used to drive the support base 161 to rotate.

[0070] In this embodiment, the rotating unit drives the supporting chassis 161 to rotate, which in turn drives the central cylinder 11 and the positioning post 21 to rotate synchronously. The synchronous rotation of the central cylinder 11 and the positioning post 21 serves two purposes: firstly, it adjusts the position of the positioning post 21, facilitating its alignment and insertion into the arc-shaped rhomboid coil 100; secondly, when used in conjunction with an external positioning rod, with the external positioning rod inserted into the arc-shaped rhomboid coil 100, the rotation of the central cylinder 11 and the positioning post 21 causes the positioning post 21 to move away from the external positioning rod, automatically widening the distance between the two diagonal points A and B of the arc-shaped rhomboid coil 100, facilitating the subsequent process of fitting the other end of the arc-shaped rhomboid coil 100 onto the corresponding positioning post 21.

[0071] According to a specific embodiment of the present invention, the rotating unit includes: a rotating drive 40, a driving gear 41, and a driven gear 42; the driven gear 42 is a cylindrical gear coaxially arranged with the supporting chassis 161, the cylindrical gear is fixed to the lower part or the outer part of the supporting chassis 161, the driving gear 41 meshes with the driven gear 42, the rotating drive 40 is located on one side of the supporting chassis, and the rotating drive 40 is connected to the driving gear 41 and is used to drive the driving gear 41 to rotate.

[0072] Since the telescopic drive 23 is connected to the lower part of the central abutment 22, meaning that the telescopic drive 23 occupies the position of the rotation center of the support chassis 161, it is difficult to directly connect the rotational power at the rotation center. In this embodiment, the rotary drive 40 (such as a motor) is located on one side. By using the rotary drive 40 to drive the driving gear 41 and the driven gear 42 to rotate, the support chassis 161 together with the central cylinder 11 and the positioning column 21 can be rotated as a whole by driving the side.

[0073] Since the central cylinder 11 needs to rotate at a relatively small angle during operation (to adjust the rotation angle of the telescopic positioning column 21 to align with the inner hole of the arc-shaped rhomboid coil 100; and to slightly widen the distance between the diagonal points A and B), in specific implementation, the number of teeth of the driving gear 41 is less than the number of teeth of the driven gear 42, which is conducive to deceleration drive and facilitates precise control of the rotation angle of the support chassis 161.

[0074] According to a specific embodiment of the present invention, the ring array type arc-shaped sheet rhombic coil stacking positioning fixture 2 further includes: a base plate 24, a fixing ring 25 fixed above the base plate 24, and a bushing 26 disposed inside the fixing ring 25. The lower part of the bushing 26 is rotatably connected to the fixing ring 25 via a bearing, and the upper part of the bushing 26 is fixedly connected to the driven gear 42 and the supporting base 161. The bushing 26 is a cylindrical shape with openings at the top and bottom. The connecting section 224 and the telescopic drive 23 extend into the bushing 26 from the upper and lower ends of the bushing 26, respectively.

[0075] More specifically, the base plate 24 is flat, the fixing ring 25 is circular, and the bushing 26 is circular in shape.

[0076] In this embodiment, the base plate 24 provides a fixed support, and the bushing 26, the support chassis 161, and the driven gear 42 are rotatably connected to the fixed ring 25. This embodiment provides a rotating support structure, which helps to improve the overall stability and integrity of this utility model.

[0077] According to a specific embodiment of the present invention, a connector mounting bracket 30 is fixed on the lower part of the base plate 24, and an air pipe connector 31 is provided on the connector mounting bracket 30. The telescopic drive 23 is a cylinder, and a rotary joint 32 for introducing pressurized gas into the cylinder is provided at the bottom of the cylinder. A connecting air pipe is provided between the air pipe connector 31 and the rotary joint 32.

[0078] In this embodiment, the air pipe connector 31 is used to introduce pressurized gas into the cylinder, and the rotary connector 32 can meet the requirements of rotary connection and adapt to the axial rotation of the cylinder.

[0079] According to a specific embodiment of this utility model, the annular array type arc-shaped sheet-like rhombic coil stacking positioning fixture 2 also includes a sensor mounting bracket 34. The upper part of the sensor mounting bracket 34 is fixed to the connecting section 224, and the lower part of the sensor mounting bracket 34 extends downward with a bushing 26. A sensing ring 35 is fixedly installed below the sensor mounting bracket 34. A lifting position sensor is provided on one side of the sensing ring 35 to cooperate with the sensing ring 35 and to detect the lifting position of the center stop 22. The lifting position sensor includes a first sensor 36 and a second sensor 37 arranged vertically. The first sensor 36 and the second sensor 37 are respectively installed on the lower part of the base plate 24. The annular array type arc-shaped sheet-like rhombic coil stacking positioning fixture 2 also includes a third sensor 29 provided on one side of the driven gear 42 and used to detect the rotation angle of the driven gear 42. A sensing sheet is provided on the driven gear 42 to cooperate with the third sensor 29.

[0080] In this embodiment, by using a sensor in conjunction with an induction ring 35 or an induction plate, the lifting and rotating positions of the center stop 22 can be detected, which facilitates integration with the electrical control system and enables precise control of the lifting stroke of the cylinder and the rotation angle of the driven gear 42.

[0081] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components; and they can also refer to a "transmission connection," that is, a power connection through various suitable methods such as belt drive, gear drive, or sprocket drive. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A ring-array type arc-shaped sheet-like rhomboid coil stacking positioning fixture, characterized in that, The fixture comprises a central cylindrical cylinder, with n sliding holes (n being a natural number ≥ 3) circumferentially arranged on its sidewalls. Each sliding hole houses a slidably connected positioning post, with the end of the positioning post furthest from the central axis of the cylinder serving as the positioning end. The annular array of arc-shaped, sheet-like, rhomboid coil stacking positioning fixture includes a positioning state and a retraction state. In the positioning state, the positioning ends of all the positioning posts extend beyond the outer sidewall of the central cylinder. In the retraction state, all the positioning ends are contained within the sliding holes. The fixture also includes a central abutment rod with one end extending into the central cylinder. This central abutment rod includes a frustum-shaped pushing section, which pushes all the positioning posts out of the sliding holes, thus positioning the fixture in the positioning state.

2. The ring array type arc-shaped sheet rhombic coil stacking positioning fixture according to claim 1, characterized in that, The n sliding holes are located at the same height of the central cylinder, and the n sliding holes are evenly distributed with the central axis of the central cylinder as the center.

3. The ring array type arc-shaped sheet-like rhomboid coil stacking positioning fixture according to claim 2, characterized in that, The central abutment also includes a sliding section fixed to the lower part of the pushing section and a connecting section fixed to the lower part of the sliding section; both the pushing section and the sliding section are located inside the central cylinder, and the connecting section is located below the central cylinder. The pushing section is generally shaped like a frustum of a cone, smaller at the top and larger at the bottom; the sliding section is cylindrical and slidably connected to the inner wall of the central cylinder; the annular array arc-shaped sheet rhombic coil stacked positioning fixture also includes a telescopic drive connected to the connecting section and used to drive the central abutment to slide along the axial direction of the central cylinder; the end of the positioning post away from the positioning end is the abutting end; when the annular array arc-shaped sheet rhombic coil stacked positioning fixture is in the positioning state, the upper part of the sliding section abuts against the abutting end.

4. The ring array type arc-shaped sheet rhombic coil stacking positioning fixture according to claim 3, characterized in that, The positioning column includes a connected positioning main body segment and a column head segment; the positioning main body segment is cylindrical in shape, the column head segment is cylindrical in shape, the positioning main body segment and the column head segment are coaxially arranged, and the diameter of the column head segment is larger than the diameter of the positioning main body segment; the column head segment is located inside the central cylinder, and the positioning main body segment is slidably connected to the sliding hole; the side of the column head segment away from the positioning main body segment is the positioning end; the side of the positioning main body segment away from the column head segment is the abutting end; the positioning end and the outer surface of the column head segment are connected by an arc surface transition.

5. The ring array type arc-shaped sheet rhombic coil stacking positioning fixture according to claim 4, characterized in that, The central abutment also includes a spring-loaded section fixed to the top of the pushing section, and the lower part of the spring-loaded section is provided with a protruding support step ring; The annular array type arc-shaped sheet-like rhombic coil stacking positioning fixture also includes a locking head unit, which includes: a pressure plate, a compression spring, and a spring pressure ring; the pressure plate is fixed to the top of the spring-loaded section; the spring pressure ring is generally a downward-opening circular cap, the upper part of the spring pressure ring is movably sleeved on the supporting step ring, the inner side of the spring pressure ring and the outer side of the spring-loaded section form a locking gap, and the bottom of the outer side of the spring pressure ring has an inclined guide surface; the compression spring is sleeved on the spring-loaded section, and the upper and lower ends of the compression spring abut against the pressure plate and the spring pressure ring respectively; the annular array type arc-shaped sheet-like rhombic coil stacking positioning fixture also includes a transition state, when the annular array type arc-shaped sheet-like rhombic coil stacking positioning fixture is in the transition state, the compression spring is in a compressed state under the squeezing action of the locking head section; When the circular array type arc-shaped sheet-like rhomboid coil stacked positioning fixture is in the unloading state, the compression spring is in the relaxed state, and the column head section is engaged in the column head engagement gap.

6. The ring array type arc-shaped sheet-like rhomboid coil stacking positioning fixture according to claim 5, characterized in that, The ring array type arc-shaped sheet rhombic coil stacking positioning fixture also includes an overall disc-shaped support base, on which a recessed central column insertion groove is provided, and the lower part of the central column is inserted into and fixed in the central column insertion groove; the ring array type arc-shaped sheet rhombic coil stacking positioning fixture also includes a rotating unit connected to the support base and used to drive the support base to rotate.

7. The ring array type arc-shaped sheet rhombic coil stacking positioning fixture according to claim 6, characterized in that, The rotating unit includes a rotation drive, a driving gear, and a driven gear; the driven gear is a cylindrical gear coaxially arranged with the supporting chassis, the cylindrical gear is fixed to the lower or outer part of the supporting chassis, the driving gear meshes with the driven gear, the rotation drive is located on one side of the supporting chassis, and the rotation drive is connected to the driving gear and used to drive the driving gear to rotate.

8. The ring array type arc-shaped sheet rhombic coil stacking positioning fixture according to claim 7, characterized in that, The ring array type arc-shaped sheet rhombic coil stacking positioning fixture further includes: a base plate, a fixing ring fixed above the base plate, and a bushing disposed inside the fixing ring. The lower part of the bushing is rotatably connected to the fixing ring via a bearing, and the upper part of the bushing is fixedly connected to a driven gear and a supporting chassis. The bushing is a cylindrical shape with openings at the top and bottom. The connecting section and the telescopic drive extend into the bushing from the upper and lower ends, respectively.

9. The ring array type arc-shaped sheet rhombic coil stacking positioning fixture according to claim 8, characterized in that, The lower part of the base plate is fixed with a connector mounting bracket, the connector mounting bracket is provided with an air pipe connector, the telescopic drive is a cylinder, the bottom of the cylinder is provided with a rotary joint for introducing pressurized gas into the cylinder, and a connecting air pipe is provided between the air pipe connector and the rotary joint.

10. The ring array type arc-shaped sheet rhombic coil stacking positioning fixture according to claim 9, characterized in that, The circular array type arc-shaped sheet-like rhombic coil stacking positioning fixture also includes a sensor mounting bracket. The upper part of the sensor mounting bracket is fixed to the connecting section, and the lower part of the sensor mounting bracket extends downward from the bushing. A sensing ring is fixedly installed below the sensor mounting bracket. A lifting position sensor is provided on one side of the sensing ring to cooperate with the sensing ring and to detect the lifting position of the central abutment. The lifting position sensor includes a first sensor and a second sensor arranged vertically. The first sensor and the second sensor are respectively installed on the lower part of the base plate. The circular array type arc-shaped sheet-like rhombic coil stacking positioning fixture also includes a third sensor located on one side of the driven gear and used to detect the rotation angle of the driven gear. The driven gear is provided with a sensing sheet that cooperates with the third sensor.

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