Lamination tool
By using the limiting and clamping structure of the lamination tooling, the problems of poor lamination accuracy and outdated fixing process in the manufacturing of transformer core columns have been solved, realizing high-precision lamination and efficient production of core columns.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG CHINT ELECTRIC CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-01
AI Technical Summary
The existing transformer core column manufacturing process suffers from poor lamination accuracy and outdated fixing technology, resulting in asymmetrical core magnetic circuits and low production efficiency.
The tooling used for stacking iron chips includes a tooling body and a constraint component. The tooling body has a receiving groove along a first direction for stacking iron chips, and the iron chips are limited and clamped by limiting and clamping components. The constraint component is used to further correct the position of the iron chips.
This reduces interlayer misalignment of the core columns, simplifies the core column bonding process, and improves the accuracy and production efficiency of lamination.
Smart Images
Figure CN224190798U_ABST
Abstract
Description
Stacking tooling Technical Field
[0001] This utility model relates to the field of transformer core column manufacturing technology, and in particular to a lamination tooling. Background Technology
[0002] The core column of a transformer is its core component, primarily responsible for forming the magnetic circuit and concentrating magnetic flux to achieve efficient energy transfer. Generally, the core column adopts a laminated structure, which consists of multiple silicon steel sheets, or iron laminations, stacked sequentially in one direction.
[0003] Currently, transformer core column manufacturing generally uses a manual lamination process, which has two major technical drawbacks:
[0004] 1) Poor stacking accuracy: When silicon steel sheets are placed manually, misalignment between layers is easy to occur, resulting in asymmetry of the core magnetic circuit and affecting the transformer's energy efficiency.
[0005] 2) Outdated fixing process: After the stacking is completed, manual wrapping with yarn tape is required, which is time-consuming and labor-intensive. There are problems such as uneven fixing strength, core misalignment, and poor process consistency, which seriously restricts production efficiency.
[0006] Therefore, there is an urgent need for a stacking fixture to solve the above-mentioned technical problems. Summary of the Invention
[0007] The purpose of this invention is to provide a stacking fixture that can reduce interlayer misalignment during iron chip stacking and simplify the bonding process of the iron core column.
[0008] To achieve this objective, the present invention adopts the following technical solution:
[0009] Stacking fixtures, including:
[0010] The tooling body has a receiving groove along the first direction, and a placement groove is provided on the bottom surface of the receiving groove. The receiving groove is used to stack multiple iron chips and forms a limiting engagement with the edge of the iron chips along the second and third directions.
[0011] The constraint assembly includes a first clamping member and a second clamping member. The first clamping member is detachably disposed in the placement groove. The second clamping member can pass through multiple iron chips and is connected to the first clamping member. The first clamping member and the second clamping member can clamp multiple iron chips.
[0012] The first direction, the second direction, and the third direction mentioned above are all perpendicular to each other.
[0013] As a preferred technical solution of the above-mentioned stacking tooling, the first clamping member and the second clamping member are threadedly connected, a first anti-rotation part is provided in the placement groove, and a second anti-rotation part is provided in the first clamping member. The first anti-rotation part and the second anti-rotation part can abut against each other along the rotational circumference of the second clamping member.
[0014] As a preferred technical solution of the above-mentioned stacking tooling, in the cross section perpendicular to the first direction, the cross-sectional shape of the placement groove and the cross-sectional shape of the first clamping member are both polygonal.
[0015] As a preferred technical solution of the above-mentioned stacking tooling, the tooling body includes:
[0016] The base, on which the aforementioned placement groove is provided;
[0017] The limiting member is provided in multiple ways, and the multiple limiting members are installed on the base and surround the base to form the receiving groove.
[0018] As a preferred technical solution of the above-mentioned stacking tooling, the limiting member forms a guide surface at the end opposite to the base in the first direction, and the guide surface is used to guide the iron chip to move into the receiving groove.
[0019] As a preferred technical solution for the above-mentioned stacking tooling, the guide surface is set as a rounded or chamfered surface.
[0020] As a preferred technical solution of the above-mentioned stacking tooling, the above-mentioned limiting member is threadedly connected to the above-mentioned base, and the above-mentioned limiting member has a slotted countersunk hole or a cross-shaped countersunk hole at the end opposite to the above-mentioned base in the first direction.
[0021] As a preferred technical solution of the above-mentioned stacking tooling, the base includes n mounting positions, and the limiting members are provided with m, wherein the m limiting members can be selectively installed in the m mounting positions, where m and n are both positive integers and satisfy 1 < m < n.
[0022] As a preferred technical solution of the above-mentioned stacking tooling, the bottom surface of the accommodating groove is provided with a clearance opening that communicates with the accommodating groove, and the iron chip can block at least part of the clearance opening.
[0023] As a preferred technical solution of the above-mentioned stacking tooling, it also includes a lifting member, which is disposed along the first direction on the side of the tooling body opposite to the receiving groove, and the lifting member can pass through the clearance opening and push the multiple iron chips away from the receiving groove.
[0024] The beneficial effects of this utility model are:
[0025] This utility model provides a stacking fixture, comprising a fixture body and a constraint assembly. The fixture body has a receiving groove along a first direction, and a placement groove is provided on the bottom surface of the receiving groove. The receiving groove is used to stack multiple iron chips and forms a limiting engagement with the edges of the iron chips along a second direction and a third direction. The constraint assembly includes a first clamping member and a second clamping member. The first clamping member is detachably disposed in the placement groove, and the second clamping member can pass through multiple iron chips and is connected to the first clamping member. The first clamping member and the second clamping member can clamp the multiple iron chips. The first direction, the second direction, and the third direction are perpendicular to each other.
[0026] Multiple iron chips are placed in a receiving groove along a first direction and stacked sequentially to form an iron core column. The peripheral sidewall of the receiving groove can limit the iron chips in a second and third direction during the stacking process, thereby achieving preliminary position correction of the iron chips. The constraint component facilitates the complete removal of the iron core column from the receiving groove. Furthermore, the insertion of the second clamping component into the iron core column can perform a second position correction on the stacked iron chips, further reducing interlayer errors of the iron core column and preventing deformation during removal. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model 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 the content of the embodiments of this utility model and these drawings without creative effort.
[0028] Figure 1 is a schematic diagram of the assembly of the lamination tooling and the iron core column provided in this embodiment of the present invention;
[0029] Figure 2 is an exploded view of the lamination tooling and iron core column provided in the embodiment of this utility model;
[0030] Figure 3 is a schematic diagram of the stacking fixture provided in an embodiment of the present invention;
[0031] Figure 4 is a schematic diagram of the structure of the substrate provided in an embodiment of the present invention;
[0032] Figure 5 is a magnified view of part A in Figure 4;
[0033] Figure 6 is a structural schematic diagram of the limiting member provided in an embodiment of this utility model;
[0034] Figure 7 is a structural schematic diagram of a constraint component provided in an embodiment of the present invention;
[0035] Figure 8 is a structural schematic diagram of a constraint component provided in another embodiment of the present invention;
[0036] Figure 9 is a schematic diagram of the stacking fixture and core column provided in the embodiment of this utility model.
[0037] Figure 10 is a schematic diagram of the assembly of the limiting member and the substrate provided in another embodiment of the present invention.
[0038] In the picture:
[0039] X, first direction; Y, second direction; Z, third direction;
[0040] 1. Lamination fixture; 2. Iron core column; 21. Through hole;
[0041] 100, base; 110, placement groove; 111, first anti-rotation part; 120, clearance groove; 130, clearance opening; 140, second threaded hole; 150, sliding groove; 151, first retaining edge;
[0042] 200. Limiting component; 201. First limiting component A; 202. First limiting component B; 203. Second limiting component A; 204. Second limiting component B; 205. Third limiting component A; 206. Third limiting component B; 210. First end; 220. Intermediate section; 230. Second end; 231. Guide surface; 241. Second retaining edge A; 242. Second retaining edge B; 243. Threaded fastener;
[0043] 300, constraint assembly; 310, first clamping member; 311, first threaded hole; 312, insertion hole; 313, annular groove; 314, second anti-rotation part; 320, second clamping member; 321, abutment part; 322, insertion part; 3221, protrusion;
[0044] 400. Receptacle. Detailed Implementation
[0045] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0046] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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 communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0048] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0049] As shown in Figures 1 to 9, this utility model provides a stacking fixture 1, including a fixture body and a constraint assembly 300. The fixture body has a receiving groove 400 along a first direction X, and a placement groove 110 on the bottom surface of the receiving groove 400. The receiving groove 400 is used to stack multiple iron chips and forms a limiting fit with the edges of the iron chips along a second direction Y and a third direction Z. The constraint assembly 300 includes a first clamping member 310 and a second clamping member 320. The first clamping member 310 is detachably disposed in the placement groove 110, and the second clamping member 320 can pass through multiple iron chips and is connected to the first clamping member 310. The first clamping member 310 and the second clamping member 320 can clamp the multiple iron chips. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.
[0050] For example, the receiving groove 400 includes a bottom wall and a peripheral side wall. The peripheral side wall is fixed relative to the bottom wall. The receiving groove 400 forms an opening in the first direction X. The iron chip is placed in the receiving groove 400 along the first direction X. The bottom wall supports the iron chip in the direction of gravity. In the receiving groove 400, the peripheral side wall of the receiving groove 400 can abut against the iron chip in the second direction Y and the third direction Z. That is, it realizes the limiting constraint in the plane perpendicular to the first direction X. Multiple iron chips are stacked sequentially along the first direction X to form an iron core column 2. Through the limiting of the peripheral side wall of the receiving groove 400, the iron chips can be initially corrected in position during the stacking process, reducing the interlayer misalignment of the iron core column 2.
[0051] Furthermore, to maintain alignment when the core post 2 is removed from the tooling body, this embodiment provides a constraint component 300. The constraint component 300 includes a first clamping member 310 and a second clamping member 320. The second clamping member 320 includes an abutment portion 321 and an insertion portion 322. The core chips have pre-set through holes 21. When multiple core chips are stacked sequentially along the first direction X, their through holes 21 tend to be coaxially arranged. The insertion portion 322 of the second clamping member 320 passes through the through holes 21 sequentially to further correct the position of the multiple core chips, making the through holes 21 coaxially arranged, thereby aligning the core chips and reducing interlayer misalignment of the core post 2. The abutment portions 321 of the first clamping member 310 and the second clamping member 320 are located on opposite sides of the core post 2 in the first direction X, for clamping the core post 2 in the first direction X.
[0052] In use, the first clamping member 310 is first placed in the receiving groove 400, and then iron chips are stacked in the receiving groove 400 in sequence. When a sufficient number are accumulated or a preset thickness is reached along the first direction X, multiple iron chips form an iron core column 2. An insertion part 322 is inserted into the through hole 21 of the iron chip. The insertion part 322 is fixed to the first clamping member 310. The abutting part 321 of the first clamping member 310 and the second clamping member 320 approach each other, so that multiple iron chips are close to each other. Finally, the iron core column 2 together with the constraint assembly 300 is completely removed from the receiving groove 400 along the first direction X.
[0053] Furthermore, since the first clamping member 310 is clamped between the iron chip and the bottom wall of the receiving groove 400, in order to ensure that the iron chip can be stably placed on the bottom wall of the groove and to reduce the stress concentration of the force exerted by the first clamping member 310 on the iron chip, in this embodiment, a placement groove 110 is provided on the bottom wall of the groove, the first clamping member 310 is placed in the placement groove 110, the depth of the placement groove 110 in the first direction X is greater than or equal to the thickness of the first clamping member 310, and one end of the insertion part 322 can extend into the placement groove 110 and connect with the first clamping member 310.
[0054] Regarding the connection method between the first clamping member 310 and the second clamping member 320 in the constraint assembly 300.
[0055] In this embodiment, the first clamping member 310 and the second clamping member 320 are threadedly connected. Specifically, the first clamping member 310 has a first threaded hole 311, and one end of the insertion part 322 is provided with an external thread structure. The insertion part 322 is inserted into the first threaded hole 311 and is threadedly connected to the first clamping member 310 within the first threaded hole 311. Thus, by screwing the second clamping member 320, the connection between the second clamping part and the first clamping member 310 and the locking in the first direction X can be achieved until the abutting part 321 of the second clamping member 320 and the first clamping member 310 both abut against the iron core column 2.
[0056] In other embodiments, as shown in FIG8, the first clamping member 310 has an insertion hole 312 along the first direction X. The inner sidewall of the insertion hole 312 also has an annular groove 313 around the axis of the through hole 21. The end of the insertion part 322 for connecting with the first clamping member 310 is provided with a plurality of protrusions 3221 along the first direction X. The protrusions 3221 are annular around the axis of the insertion part 322 and can undergo elastic deformation. When the insertion part 322 extends into the insertion hole 312 in the first direction X, the protrusion 3221 abuts against the axial end face of the insertion hole 312. The protrusion 3221 is squeezed and undergoes elastic deformation, contracting in the axial direction of the insertion part 322. After entering the insertion hole 312, the protrusion 3221 recovers its deformation in the annular groove 313. The protrusion 3221 is locked in the annular groove 313, thereby locking the insertion part 322 and the first clamping member 310.
[0057] Of course, the first clamping member 310 and the second clamping member 320 can also be connected in other ways, and this embodiment does not limit this. Regarding the connection method between the abutting part 321 and the insertion part 322 in the second clamping member 320.
[0058] In this embodiment, the abutting part 321 and the inserting part 322 are integrally formed and can be a bolt. The abutting part 321 is the nut of the bolt, and the inserting part 322 is the bolt shank.
[0059] In other embodiments, the abutting part 321 and the insertion part 322 can be detachably connected, such as by threaded connection or latching connection.
[0060] Optionally, the first clamping member 310 and the second clamping member 320 are threadedly connected. A first anti-rotation part 111 is provided in the placement groove 110, and the first clamping member 310 is provided with a second anti-rotation part 314. The first anti-rotation part 111 and the second anti-rotation part 314 can abut against each other along the rotational circumference of the second clamping member 320. With this configuration, the abutment between the first anti-rotation part 111 and the second anti-rotation part 314 can restrict the rotation of the first clamping member 310 relative to the tooling body within the placement groove 110, so that the insertion part 322 of the second clamping member 320 can be threadedly connected to the first clamping member 310.
[0061] In one embodiment, the cross-sectional shapes of both the placement groove 110 and the first clamping member 310 are polygons in a section perpendicular to the first direction X. Specifically, the cross-sectional shape of the placement groove 110 is a first polygon, and the cross-sectional shape of the first clamping member 310 is a second polygon, wherein the radius of the inscribed circle of the first polygon is smaller than the radius of the circumscribed circle of the second polygon.
[0062] As shown in Figures 4, 5, and 7, in this embodiment, the cross-sectional shape of the placement groove 110 is a regular hexagon, the cross-sectional shape of the first clamping member 310 is a regular hexagon, and the radius of the circumcircle of the first polygon is D. 第一外接 The radius of the inscribed circle of the first polygon is D. 第一内切 The radius of the circumcircle of the second polygon is d. 第二外接 Specific satisfaction, D 第一内切 <d 第二外接 <D 第一外接 That is, d 第二外接 <D 第一外接 This allows the first clamping member 310 to be placed within the placement slot 110; D 第一内切 <d 第二外接 This allows the inner wall of the placement groove 110 to restrict the rotation of the first clamping member 310 relative to the tooling body.
[0063] In other embodiments, the cross-section of the placement groove 110 may also be irregular in shape. For example, the cross-sectional shape of the placement groove 110 is D-shaped, and the cross-sectional shape of the first clamping member 310 is D-shaped.
[0064] In other embodiments, one of the placement groove 110 and the first clamping member 310 is provided with a pin on the eccentric side of the axis of the insertion part 322, and the other is provided with a corresponding insertion hole. The pin and the insertion hole are inserted into each other along the first direction X, thereby restricting the relative rotation between the first clamping member 310 and the tooling body.
[0065] Optionally, the tooling body includes a base 100 and limiting members 200. The base 100 is provided with a placement groove 110; multiple limiting members 200 are provided, and the multiple limiting members 200 are installed on the base 100 and surround the base 100 to form a receiving groove 400.
[0066] Specifically, the base 100 provides an installation foundation for the limiting member 200 and the constraint component 300, and supports the iron chip in the direction of gravity. The first direction X is parallel to the direction of gravity. The limiting members 200 are all installed on the base 100. The multiple limiting members 200 and the base 100 can form a receiving groove 400. That is, the multiple limiting members 200 form the peripheral sidewall of the receiving groove 400, and part of the base 100 forms the bottom wall of the receiving groove 400. The multiple limiting members 200 include a first limiting member A201 and a first limiting member B202 that are spaced apart in the second direction Y, and a second limiting member A203 and a second limiting member B204 that are spaced apart in the third direction Z. The first limiting member A201 and the first limiting member B202 can both abut against the iron chip in the second direction Y, thereby restricting the movement of the iron chip relative to the base 100 in the second direction Y. The second limiting member A203 and the second limiting member B204 can both abut against the iron chip in the third direction Z, thereby restricting the movement of the iron chip relative to the base 100 in the third direction Z. Thus, the iron chip can only be placed into the receiving slot 400 along the first direction X, and multiple iron chips are stacked sequentially along the first direction X to form the iron core column 2. Through the limiting member 200, the iron chips can be initially corrected in position during the stacking process, reducing the interlayer misalignment of the iron core column 2.
[0067] For example, as shown in Figures 1 to 3, the iron chip is n-shaped and includes two first extensions and one second extension. The two first extensions are spaced apart in the second direction Y and are parallel to the third direction Z. The second extension is parallel to the second direction Y and is connected to the two first extensions on the same side of the third direction Z. Each first extension is equipped with at least one set of first limiting components. Each set of first limiting components includes a first limiting member A201 and a first limiting member B202. The first limiting members A201 and B202 in the same set are spaced apart in the second direction Y. When each first extension is equipped with at least two sets of first limiting components, the first limiting components corresponding to the same first extension are spaced apart in the third direction Z. The second extension is equipped with a second limiting component and a third limiting component. The second limiting component includes a second limiting member A203 and a second limiting member B204. The second limiting member A203 and the second limiting member B204 are spaced apart in the third direction Z. For example, there are three second limiting members A203 spaced apart in the second direction Y, and one second limiting member B204 is provided and is spaced apart in the third direction Z from the second limiting member A203 located in the middle position. The third limiting component includes a third limiting member A205 and a third limiting member B206, with the third limiting member A205 and the third limiting member B206 spaced apart in the second direction Y.
[0068] Optionally, the limiting member 200 forms a guide surface 231 at the end opposite to the base 100 in the first direction X. The guide surface 231 is used to guide the iron chip to move towards the inside of the receiving groove 400. This facilitates the placement of the iron chip on the tooling body.
[0069] Optionally, the guide surface 231 may be a rounded or chamfered surface. For example, the cross-section of the limiting member 200 is circular and the guide surface 231 is a chamfered surface. It can be understood that the end of the limiting member 200 facing away from the base 100 is frustum-shaped.
[0070] Preferably, the angle between the generatrix of the frustum and the first direction X is between 9° and 12°.
[0071] Optionally, the limiting member 200 is threadedly connected to the base 100. The limiting member 200 has a slotted countersunk hole or a Phillips head countersunk hole at its end facing away from the base 100 in the first direction X. The slotted countersunk hole is for insertion with a slotted screwdriver, and the Phillips head countersunk hole is for insertion with a Phillips head screwdriver. This allows the user to easily tighten or loosen the limiting member 200 with a screwdriver, thus enabling quick assembly and disassembly of the limiting member 200 from the base 100.
[0072] For example, the limiting member 200 is threadedly connected to the base 100, and the base 100 has a second threaded hole 140. The limiting member 200 includes a first end 210 and a second end 230 along the first direction X. The first end 210 forms an external thread, and the second end 230 is frustum-shaped. The first end 210 is threadedly connected to the base 100 in the second threaded hole 140. In this way, the assembly structure between the limiting member 200 and the base 100 is simple and easy to assemble.
[0073] It should be noted that, as shown in Figure 6, the limiting member 200 includes a first end 210, a middle section 220 and a second end 230 along the first direction X. The first end 210, the middle section 220 and the second end 230 are connected in sequence. The first end 210 is used to fix it to the base 100. The second end 230 has a guide surface 231 formed on the side away from the base 100. The middle section 220 has a constant diameter structure. For example, the distance between the middle section 220 of the first limiting member 200A and the middle section 220 of the first limiting member 200B in the second direction Y is always equal. The iron core chips are stacked in the middle section 220 area of the limiting member 200 to reduce the interlayer error of the iron core column 2.
[0074] Optionally, as shown in Figure 9, the base 100 includes n mounting positions, and m limiting members 200 are provided. The m limiting members 200 can be selectively installed in the m mounting positions, where m and n are both positive integers and satisfy 1 < m < n. With this setting, the positions of the limiting members 200 can be arranged according to the different objects being worked on, i.e., the different shapes or sizes of the iron chips. This ensures that after the iron chip is placed on the base 100, the iron chip is always limited by multiple limiting members 200 in the second direction Y and the third direction Z, thereby improving the usability of the stacking fixture 11.
[0075] For example, in this embodiment, each mounting position has a second threaded hole 140.
[0076] In other embodiments, as shown in FIG10, the base 100 has a sliding groove 150 along the second direction Y. Multiple sliding grooves 150 are provided and are arranged parallel to each other along the third direction Z. A first stop 151 is provided in the sliding groove 150. The limiting member 200 includes a second stop A241 and a second stop B242. The limiting member 200 is inserted into the sliding groove 150 along the second direction Y. Along the first direction X or the second direction Y, the second stop A241, the first stop 151 and the second stop B242 are arranged sequentially. The second stop A241 is threadedly connected to a threaded fastener 243. One end of the threaded fastener 243 can abut the first stop 151 against the second stop B242, thereby realizing the position locking of the limiting member 200 and the base 100. Furthermore, this configuration allows for the formation of multiple consecutive mounting positions along the length of the slide groove 150, i.e., the second direction Y. This enables stepless adjustment of the relative position between the limiting member 200 and the base 100, allowing the multiple limiting members 200 to form a peripheral wall of the receiving groove 400 that better conforms to the outer contour of the iron chip, thus reducing the gap between the limiting member 200 and the iron chip in the second direction Y. Optionally, the bottom surface of the receiving groove 400 is provided with a clearance opening 130 communicating with the receiving groove 400, and the iron chip can block at least part of the clearance opening 130.
[0077] With this configuration, when the iron chip is placed on the base 100, the projection of the iron chip in the first direction X coincides with the outer contour of the clearance opening 130. After multiple iron chips are stacked to form the iron core column 2, the iron core column 2 is subjected to a force in the first direction X through the clearance opening 130 on the side of the base 100 away from the iron core column 2, so that the iron core column 2 can move away from the base 100 in the first direction X, so that the iron core column 2 can be completely removed from the self-accommodating groove 400.
[0078] Optionally, the stacking fixture 11 also includes a lifting member, which is disposed along the first direction X on the side of the fixture body opposite to the receiving groove 400, and the lifting member can pass through the clearance opening 130 and push the multiple iron chips away from the receiving groove 400.
[0079] For example, the lifting component is a telescopic rod structure such as a cylinder, an electric push rod, or a hydraulic rod.
[0080] Optionally, the base 100 also has a clearance groove 120, which communicates with the placement groove 110. The clearance groove 120 is used to avoid the edges of the first clamping member 310. As shown in FIG5, in this embodiment, the cross-section of the placement groove 110 is a regular hexagon, and the base 100 has a clearance groove 120 along the first direction X. Each placement groove 110 is equipped with six clearance grooves 120. The clearance grooves 120 are formed at the corners of the regular hexagon. When the first clamping member 310, which also has a regular hexagonal cross-section, is placed into the placement groove 110 along the first direction X, the six edges of the first clamping member 310 that are parallel to the first direction X can be inserted into the clearance grooves 120, thereby reducing the machining accuracy of the placement groove 110 and / or the first clamping member 310.
[0081] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.
Claims
1. A stacking fixture, characterized in that, include: The tooling body has a receiving groove (400) along a first direction (X), and a placement groove (110) is provided on the bottom surface of the receiving groove (400). The receiving groove (400) is used to stack multiple iron chips and form a limiting engagement with the edge of the iron chips along a second direction (Y) and a third direction (Z). The constraint assembly (300) includes a first clamping member (310) and a second clamping member (320). The first clamping member (310) is detachably disposed in the placement groove (110). The second clamping member (320) can pass through multiple iron chips and is connected to the first clamping member (310). The first clamping member (310) and the second clamping member (320) can clamp multiple iron chips. The first direction (X), the second direction (Y) and the third direction (Z) are perpendicular to each other.
2. The stacking fixture according to claim 1, characterized in that, The first clamping member (310) and the second clamping member (320) are threadedly connected. A first anti-rotation part (111) is provided in the placement groove (110), and a second anti-rotation part (314) is provided in the first clamping member (310). The first anti-rotation part (111) and the second anti-rotation part (314) can abut against each other along the rotational circumference of the second clamping member (320).
3. The stacking fixture according to claim 2, characterized in that, In a cross section perpendicular to the first direction (X), both the cross-sectional shape of the placement groove (110) and the cross-sectional shape of the first clamping member (310) are polygonal.
4. The stacking fixture according to claim 1, characterized in that, The tooling body includes: a base (100) on which the placement groove (110) is provided; and a limiting member (200) there are multiple limiting members (200), which are installed on the base (100) and surround the base (100) to form the receiving groove (400).
5. The stacking fixture according to claim 4, characterized in that, The limiting member (200) forms a guide surface (231) at one end opposite to the base (100) in the first direction (X), and the guide surface (231) is used to guide the iron chip to move into the receiving groove (400).
6. The stacking fixture according to claim 5, characterized in that, The guide surface (231) is set as a rounded surface or a chamfered surface.
7. The stacking fixture according to claim 4, characterized in that, The limiting member (200) is threadedly connected to the base (100), and the limiting member (200) has a slotted countersunk hole or a cross-shaped countersunk hole at one end opposite to the base (100) in the first direction (X).
8. The stacking fixture according to claim 4, characterized in that, The base (100) includes n mounting positions, and the limiting member (200) is provided with m. The m limiting members (200) can be selectively installed in the m mounting positions, where m and n are both positive integers and satisfy 1 < m < n.
9. The stacking fixture according to claim 1, characterized in that, The bottom surface of the receiving groove (400) is provided with a clearance opening (130) communicating with the receiving groove (400), and the iron chip can block at least part of the clearance opening (130).
10. The stacking fixture according to claim 9, characterized in that, It also includes a lifting member, which is disposed along the first direction (X) on the side of the tooling body opposite to the receiving groove (400), and the lifting member can pass through the clearance opening (130) and push the plurality of iron chips away from the receiving groove (400).