Stator laminating tool

Abstract

The utility model discloses a stator overlying tool which comprises a panel, a bottom plate and two supporting blocks which are connected between the panel and the bottom plate and provide fixed supporting connection, the two supporting blocks are oppositely arranged on the two sides of the space between the panel and the bottom plate respectively, and limiting sliding grooves are vertically formed in the opposite side faces of the two supporting blocks in parallel. A pressing plate is transversely arranged between the two supporting blocks, and the pressing plate is clamped in the limiting sliding grooves of the two supporting blocks and can slide up and down. The device further comprises a downward-pressing operation mechanism, the downward-pressing operation mechanism comprises a vertically-arranged screw and an operation rod fixedly connected to the top end of the screw, a threaded hole is formed in the middle of the panel, the screw penetrates through the threaded hole in the middle of the panel and is in threaded fit with the threaded hole, and the bottom end of the screw extends downwards to abut against the pressing plate. According to the utility model, the part clamping mode of the stator lamination sheet is changed, and the lamination processing production efficiency of the stator lamination sheet and the product processing reliability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet lamination and bonding, in particular to a stator lamination tool. Background Art

[0002] The rail transit traction motor system is mainly composed of traction motor, traction converter, traction DC power supply system, electric dynamometer and digital measuring device. In order to ensure the manufacturing quality and qualified rate of the core components of the traction motor, the core components such as stator wire package are all independently produced and processed to protect the traction motor. The quality of the stator wire package focuses on the quality of the punching sheet, the quality of the core lamination and the quality of the winding.

[0003] The stator core is made of several stacked stator laminations. During the production of a motor stator core, the laminations must be stacked and pressed tightly, heated to ensure the adhesive solidifies, and repeatedly pressed to ensure uniform adhesive distribution between laminations. Existing techniques, using tools such as wrenches, vises, and presses, make it difficult to ensure adhesive uniformity and maintain dimensional and positional tolerances. This results in uneven adhesive distribution between laminations after machining into finished parts, and areas without adhesive can easily break apart, leading to scrapped parts. Utility Model Content

[0004] The utility model aims to provide a stator lamination tool, which is used to change the parts clamping mode of the stator lamination sheets, and help improve the lamination processing production efficiency of the stator lamination sheets and the reliability of product processing.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The utility model discloses a stator lamination tool, comprising a panel and a base plate, and two support blocks connected between the panel and the base plate to provide a fixed support connection, the two support blocks are respectively arranged on both sides of the space between the panel and the base plate, and limiting slide grooves are provided vertically and parallel on the opposite side surfaces of the two support blocks; a pressure plate is arranged horizontally between the two support blocks, and the pressure plate is clamped in the limiting slide grooves of the two support blocks and can slide up and down, and the space between the pressure plate and the base plate forms an extrusion space for stacking the stator laminations; it also includes a downward pressing operating mechanism, the downward pressing operating mechanism includes a vertically arranged screw and an operating rod fixedly connected to the top end of the screw, a threaded hole is provided at the middle position of the panel, the screw passes through the threaded hole in the middle of the panel and is threadedly engaged with it, and the bottom end of the screw extends downward and abuts against the pressure plate.

[0007] As a preferred solution, two long-shaped limit blocks are respectively arranged on both sides of the extrusion space, and the pressure plate is positioned at the position of the limit blocks by a screw. At this time, the laminated sheets to be stacked placed in the extrusion space are stacked to a set size.

[0008] As a preferred solution, a limiting blind hole coaxial with the threaded hole is provided at a middle position on the upper surface of the bottom plate, and the screw rod extends into the limiting blind hole and abuts against the pressure plate.

[0009] As a preferred solution, coaxial positioning countersunk holes are respectively provided at the four corners of the end faces of the panel and the base plate, and positioning threaded holes corresponding to the positioning countersunk holes are provided at both ends of the support block. The positioning threaded holes are provided with threads for locking. The panel and the base plate are respectively threadedly fastened to the positioning threaded holes at both ends of the support block after countersunk screws are inserted into the positioning countersunk holes, thereby realizing a fixed connection between the panel and the base plate and the support block.

[0010] As a preferred solution, a pin hole is provided in the middle of the operating rod, and a pin block that can cooperate with the pin hole is provided at the top of the screw rod. The operating rod is engaged with the pin block through the pin hole in the middle thereof to achieve a detachable connection with the screw rod.

[0011] The technical solution of the utility model has the following beneficial effects:

[0012] The utility model provides structural support through a support frame composed of a panel, a base plate, and a support block. The threaded holes on the panel cooperate with the screws, and the screws are rotated downward to provide downward pressure on the pressure plate, causing the pressure plate to gradually move downward, providing uniform downward pressure on the stator laminated sheets to be processed, and tightly pressing the laminated sheets until the lamination process is completed. In this way, the lamination process of the stator laminated sheets is easy to operate and easy to control the downward pressure, reducing the complexity of the operation and the possibility of error. The lamination of the laminated sheets by the gradually moving pressure plate makes the glue of the laminated sheets more uniform and the glue between the sheets more full, thereby ensuring a stronger bond between the laminated sheets and improving the reliability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings, in which:

[0014] Figure 1 This is a schematic structural diagram of the stator lamination tooling of the present invention;

[0015] Figure 2 This is a top perspective view of the structure of the present invention.

[0016] Explanation of the accompanying numbers: 1-base plate, 101-positioning countersunk hole, 2-pressure plate, 201-limiting blind hole, 3-support block, 301-limiting slide groove, 4-screw, 5-operating rod, 6-countsunk screw, 7-panel, 8-limiting block. DETAILED DESCRIPTION

[0017] In order to better understand the purpose, structure and function of the present invention, the stator lamination tooling of the present invention is further described in detail below with reference to the accompanying drawings.

[0018] Existing tools for laminating and bonding thin sheets, such as wrenches, vises, and presses, are prone to uneven glue distribution, insufficient glue between sheets, and easy scattering of sheets in areas without glue, resulting in scrapped parts. In addition, the lack of conventional clamping measures can easily lead to problems such as difficulty in controlling the dimensional tolerance and form and position tolerance of the laminations.

[0019] Based on the above technical problems to be solved, such as Figure 1 、 2 As shown, the specific embodiment of the present invention discloses a stator lamination tooling, including a panel 7 and a base plate 1, and two support blocks 3 connected between the panel 7 and the base plate 1 to provide a fixed support connection, the two support blocks 3 are respectively arranged on both sides of the space between the panel 7 and the base plate 1, and the two support blocks 3 are vertically parallel to each other on the opposite sides of the two support blocks 3; a pressure plate 2 is arranged horizontally between the two support blocks 3, and the pressure plate 2 is clamped in the limiting slots 301 of the two support blocks 3 and can slide up and down, and the space between the pressure plate 2 and the base plate 1 forms an extrusion space for stator lamination lamination; it also includes a downward pressing operating mechanism, the downward pressing operating mechanism includes a vertically arranged screw 4 and an operating rod 5 fixedly connected to the top end of the screw 4, a threaded hole is provided at the middle position of the panel 7, the screw 4 passes through the threaded hole in the middle of the panel 7 and is threadedly matched with it, and the bottom end of the screw 4 extends downward and abuts against the pressure plate 2.

[0020] In response to the problems existing in the prior art, the stator lamination tooling of the present invention is used to achieve lamination and bonding of stator lamination sheets through the rational design of a special fixture; in specific use, the stator lamination sheets coated with glue and ready for lamination are placed in the extrusion space between the pressure plate 2 and the base plate 1, and after adjusting the stacking position of the stator lamination sheets, the screw 4 is used to abut against the pressure plate 2, and the screw 4 is rotated downward to provide downward pressure on the pressure plate 2, so that the pressure plate 2 gradually moves downward and presses down evenly. After the laminations are tightly pressed, the tooling and the laminated parts that remain in the lamination state can be placed in an oven for heating to soften and solidify the glue until the lamination process is completed and then taken out. In this way, it is achieved that the glue in the laminations is uniform and full during the lamination process, so that the laminations are more firmly bonded and the laminations are avoided from falling apart in places without glue.

[0021] In this embodiment, two long-shaped limit blocks 8 are respectively arranged on both sides of the extrusion space. The pressure plate 2 is positioned at the position of the limit blocks 8 by the screw 4. At this time, the laminated sheets to be stacked placed in the extrusion space are stacked to a set size.

[0022] In this way, the limit block 8 can ensure that the movement of the pressure plate 2 on the base plate 1 is limited, and the control of the thickness size and shape and position of the laminate during lamination can be achieved. When the pressure plate moves to the positioning position, the thickness of the laminate is consistent with the thickness of the limit block 8, ensuring that the laminate reaches the set size, and when the pressure plate 2 is positioned at the position of the limit block 8, the pressure is evenly distributed on the entire laminate during the lamination process, avoiding local overpressure or underpressure caused by unsaturated glue, and the uniform pressure makes the glue evenly distributed between the laminates, ensuring the quality of bonding; at the same time, through the coordinated use of the screw 4 and the limit block 8, rapid positioning and repeated positioning can be achieved, which speeds up the lamination process, reduces errors in human operation, and can effectively control the thickness dimensional tolerance and shape and position tolerance of the laminate, thereby improving product consistency.

[0023] In this embodiment, a limiting blind hole 201 coaxial with the threaded hole is provided at the middle position of the upper surface of the base plate 1 , and the screw rod 4 extends into the limiting blind hole 201 and abuts against the pressing plate 2 .

[0024] In this way, the screw 4 passes through the threaded hole and the limiting blind hole 201 in sequence, ensuring that the screw 4 is accurately fixed in the center position of the panel 7, providing a stable reference point, and ensuring the coaxiality and verticality of the screw 4; at the same time, the limiting blind hole 201 is used to ensure that the pressure plate 2 will not undergo lateral swinging displacement during the downward rotation and extrusion of the screw 4. The pressure plate 2 is pushed by rotation, applying a horizontal downward force, and the pressure of the stacking is controlled, thereby maintaining the consistency and stability of the stacking.

[0025] In this embodiment, coaxial positioning countersunk holes 101 are respectively provided at the four corners of the end faces of the panel 7 and the base plate 1, and positioning threaded holes corresponding to the positioning countersunk holes 101 are provided at both ends of the support block 3. The positioning threaded holes are provided with threads for locking. After the panel 7 and the base plate 1 are inserted into the positioning countersunk holes 101 by the countersunk screws 6, they are respectively threadedly fastened with the positioning threaded holes at both ends of the support block 3, thereby realizing a fixed connection between the panel 7 and the base plate 1 and the support block 3.

[0026] In this way, the countersunk screw connection and installation method between the panel 7, the base plate 1 and the support block 3 helps to enhance the connection strength and stability among the three, so that the panel 7, the base plate 1 and the support block 3 can be connected to form a solid tooling support frame, while also avoiding the leakage of screws, which helps to better maintain the neatness and beauty of the appearance of the tooling structure; at the same time, if the threaded holes of the panel 7 are aging, or the base plate 1 is compressed and deformed after long-term use, when the panel 7 and the base plate 1 need to be replaced, the countersunk screw connection method can also be used for disassembly and replacement.

[0027] In this embodiment, a pin hole is provided in the middle of the operating rod 5, and a pin block that can cooperate with the pin hole is provided at the top of the screw rod 4. The operating rod 5 is engaged with the pin block through the pin hole in the middle thereof to achieve a detachable connection with the screw rod 4.

[0028] In specific implementation, the pin block can be designed as a square pin or a hexagonal pin. In this way, the operating rod 5 and the screw 4 can effectively transmit torque through the cooperation of the pin block and the pin hole structure, so that the screw 4 can be driven to rotate by twisting the operating rod 5 during use. At the same time, when the stacking process is completed and needs to be left still, the operating rod 5 can also be removed to avoid the operating rod 5 being accidentally touched and affecting the extrusion force maintained by the screw 4 on the pressure plate 2, thereby ensuring the stacking quality. At the same time, the detachable equipment parts also facilitate maintenance or replacement of tooling.

[0029] In this embodiment, after the laminations are laminated, the laminations need to be cut into wire embedding grooves before the wire packages are embedded.

[0030] In specific implementations, the stator lamination fixture of the present invention can be used to place the fixture and the laminated components in an oven for heating, thereby softening and curing the adhesive. This improves the quality of the laminate bonding, ensures uniform distribution of the adhesive between the laminates, enhances the stability and firmness of the laminate structure, and avoids problems such as lamination loosening, loose lamination, and substandard dimensional and geometric tolerances caused by the press being removed from the oven due to inability to enter the oven. Furthermore, this process simplifies the operating process, improves production efficiency, and ensures sufficient curing of the adhesive, thereby enhancing the reliability and performance of the final product.

[0031] The stator lamination tooling disclosed in this specific embodiment has the following technical effects: the utility model provides structural support through a support frame composed of a panel, a base plate and a support block, and utilizes the threaded holes on the panel to cooperate with the screw. The screw is rotated downward to provide downward pressure on the pressure plate, so that the pressure plate gradually moves downward, providing uniform downward pressure on the stator lamination sheets to be processed. After the laminations are tightly pressed, the tooling and the laminated parts that remain in the laminated state can be placed in an oven for heating to soften and solidify the glue until the lamination process is completed and then taken out. In this way, the lamination process of the stator lamination sheets is easy to operate and easy to control the downward pressure, reducing the complexity of the operation and the possibility of error. The laminates are laminated by the gradually moving pressure plate, making the glue of the laminated parts more uniform and the glue between the sheets more full, thereby ensuring a stronger bonding between the laminations and improving the reliability of the product.

[0032] It will be understood that the present invention is described with reference to certain specific embodiments / examples. Those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments / examples without departing from the spirit and scope of the present invention. In light of the present invention, these features and embodiments / examples may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. The embodiments / examples described herein represent only a portion of the embodiments / examples of the present invention, and are not intended to be exhaustive. The components of the embodiments / examples of the present invention generally described and illustrated in the accompanying drawings may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments / examples of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments / examples of the present invention. Therefore, the present invention is not limited to the specific embodiments / examples disclosed herein. All other embodiments / examples deriving from the specific embodiments / examples disclosed herein without inventive effort by a person of ordinary skill in the art are intended to fall within the scope of protection of the present invention.

Claims

1. A stator lamination tool, characterized in that: The cam is secured to a position 56° to the left of the platform and secured to the bottom of the platform so that the cam can slide smoothly along its length, with the cam being secured to the top of the platform and secured to the bottom of the platform.

2. The stator lamination tooling according to claim 1, characterized in that: Two long limit blocks are respectively arranged on both sides of the extrusion space. The pressure plate is positioned at the position of the limit blocks by a screw. At this time, the laminated sheets to be laminated placed in the extrusion space are laminated to a set size.

3. The stator lamination tooling according to claim 1, characterized in that: A limiting blind hole coaxial with the threaded hole is provided at the middle position of the upper surface of the bottom plate, and the screw rod extends into the limiting blind hole and abuts against the pressing plate.

4. The stator lamination tooling according to claim 1, characterized in that: Coaxial positioning countersunk holes are respectively provided at the four corners of the end faces of the panel and the base plate, and positioning threaded holes corresponding to the positioning countersunk holes are provided at both ends of the support block. The positioning threaded holes are provided with threads for locking. The panel and the base plate are respectively threadedly fastened to the positioning threaded holes at both ends of the support block after countersunk screws are inserted into the positioning countersunk holes, thereby realizing a fixed connection between the panel and the base plate and the support block.

5. The stator lamination tooling according to claim 1, characterized in that: A pin hole is provided in the center of the operating rod, and a pin block capable of cooperating with the pin hole is provided at the top end of the screw rod. The operating rod is engaged with the pin block through the pin hole in the middle thereof to realize a detachable connection with the screw rod.

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