A stator pressing mechanism for motor stator machining

Abstract

The utility model provides a kind of stator pressing mechanism for motor stator processing, it is related to motor production technical field, including bottom plate, the upper surface both ends of bottom plate are respectively equipped with first fixed plate and second fixed plate, the side of first fixed plate close to second fixed plate is equipped with support disc, and tensioning mechanism is installed on support disc.The utility model in first hydraulic cylinder drive connecting disc moves, and the sliding block is driven to slide along sliding groove by transmission block, so that tensioning block expands to raw material inside and is closely attached with raw material inner wall, while limit block and raw material inner wall snap fit, realize accurate positioning from inside, to ensure that raw material always keeps stable state in the process of stacking and extruding, offset condition cannot be generated, then second hydraulic cylinder and extruding plate can be used to compact raw material, improve stability in overall processing process.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing technology, and more specifically, to a stator clamping mechanism for motor stator processing. Background Technology

[0002] An electric motor is a device that converts electrical energy into mechanical energy. During the production of an electric motor, a clamping device is often used to clamp several stator laminations of the motor stator for preliminary processing. For example, the stator clamping device proposed in application number "202222135819.1" relates to the field of motor stator processing technology. It includes a support frame, on which a fixing mechanism is provided. The fixing mechanism includes a mounting shell, which is fixedly installed on the top of the support frame. A limiting mechanism is provided on the mounting shell, which includes a slide rail, which is fixedly installed on the top of the mounting shell. A slide block is slidably installed on the slide rail, and a fixing plate is fixedly installed on the slide rail. A spring is fixedly installed between the slide block and the fixing plate. Limit plates are fixedly installed on the top of both slide blocks. However, although the stator clamping device in the above technical solution initially solves the problem of easy displacement of the stator silicon steel sheet group before clamping through the limiting mechanism, it mainly relies on the elastic force of the spring to achieve the initial clamping of the silicon steel sheet group by the limiting plate. The clamping force is limited by the performance of the spring. When facing stator silicon steel sheet groups with larger specifications or heavier weight, the clamping force provided by the spring may be insufficient, and there is still a risk that the silicon steel sheet group will be slightly displaced in the subsequent clamping process. Therefore, we propose a stator clamping mechanism for motor stator processing to solve the above problems. Utility Model Content

[0003] The main purpose of this utility model is to provide a stator clamping mechanism for motor stator processing. This mechanism solves the problem that although the stator clamping device initially solves the problem of easy displacement of the stator silicon steel sheet assembly before clamping through the limiting mechanism, it mainly relies on the elastic force of the spring to achieve the initial clamping of the silicon steel sheet assembly by the limiting plate. The clamping force is limited by the performance of the spring. When dealing with stator silicon steel sheet assemblies with larger specifications or heavier weight, the clamping force provided by the spring may be insufficient, and there is still a risk that the silicon steel sheet assembly will slightly shift during the subsequent clamping process.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A stator clamping mechanism for motor stator processing includes a base plate. A first fixing plate and a second fixing plate are respectively mounted on both ends of the upper surface of the base plate. A support plate is mounted on the side of the first fixing plate closest to the second fixing plate. A tensioning mechanism is mounted on the support plate. A raw material is mounted on the outer side of the tensioning mechanism. A second hydraulic cylinder is mounted on the side of the second fixing plate furthest from the support plate. A pressing plate is installed between the second fixing plate and the raw material, the pressing plate being in contact with the raw material. The output end of the second hydraulic cylinder movably penetrates the interior of the second fixing plate and connects to the pressing plate. The tensioning mechanism includes sliding grooves arranged in a circumferential array on the side of the support plate closest to the raw material. A slider is movably mounted inside each sliding groove. A tensioning block is mounted on the end of each slider that is close to each other. The tensioning blocks are respectively engaged inside the raw material. Limiting blocks are respectively mounted on the side of each tensioning block that is far from each other, and the limiting blocks are respectively engaged with grooves on the inner wall of the raw material.

[0005] Preferably, a plurality of connecting blocks are installed on the side of the extrusion plate away from the raw material, and a transmission plate is installed on the side of the connecting blocks away from the raw material. The transmission plate is connected to the output end of the second hydraulic cylinder.

[0006] Preferably, a connecting rod is installed on the side of the transmission plate away from the raw material, and flanges are respectively installed on the end of the connecting rod away from the raw material and the output end of the second hydraulic cylinder, with several bolts installed between the flanges that are close to each other.

[0007] Preferably, the first fixed plate has a movable groove inside, the movable groove and the sliding groove are connected through each other, a connecting plate is movably installed inside the movable groove, and a transmission block is installed between the connecting plate and the tensioning block respectively.

[0008] Preferably, the tensioning blocks are provided with a first groove on the side that is close to each other, and the outer side of the connecting plate is provided with a plurality of second grooves. The first groove and the second groove are respectively installed with a fixing rod. The transmission blocks are respectively movably installed inside the first groove and the second groove, and the rods of the fixing rods are respectively movably installed through the two ends inside the transmission blocks.

[0009] Preferably, a first hydraulic cylinder is installed on the side of the first fixing plate away from the raw material. The output end of the first hydraulic cylinder moves through the interior of the first groove and is connected to the connecting plate.

[0010] Compared with the prior art, the present invention has the following beneficial effects: (1) In this utility model, the first hydraulic cylinder drives the connecting plate to move, and the transmission block drives the slider to slide along the slide groove, so that the tensioning block expands to the inside of the raw material and fits tightly against the inner wall of the raw material. At the same time, the limiting block engages with the groove of the inner wall of the raw material, achieving precise positioning from the inside, thereby ensuring that the raw material remains stable during the stacking and extrusion process and does not deviate. Then, the second hydraulic cylinder and the extrusion plate can be used to press the raw material, improving the stability of the overall processing.

[0011] (2) In this utility model, the spacing can be adjusted according to the size of the raw material by means of the cooperation between the connecting plate, the transmission block and the tensioning block, so as to adapt to various types of raw materials. Then, the extrusion plates of various types can be replaced and installed by means of bolts and flanges, which further improves the stability and adaptability of the raw material during the overall processing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a stator clamping mechanism for motor stator processing according to the present invention; Figure 2 This is a front view schematic diagram of a stator clamping mechanism for motor stator processing according to the present invention; Figure 3 This is a side view of the stator clamping mechanism for motor stator processing according to the present invention. Figure 4 This utility model relates to a stator clamping mechanism for motor stator processing. Figure 3 Schematic diagram of the cross-sectional structure at point AA; Figure 5 This utility model relates to a stator clamping mechanism for motor stator processing. Figure 2 Schematic diagram of the cross-sectional structure at point BB; Figure 6 This utility model relates to a stator clamping mechanism for motor stator processing. Figure 4 Enlarged structural diagram at point C; Figure 7 This utility model relates to a stator clamping mechanism for motor stator processing. Figure 4 Enlarged structural diagram at point D; Figure 8 This utility model relates to a stator clamping mechanism for motor stator processing. Figure 5 Enlarged structural diagram at point E in the middle.

[0013] In the diagram: 1. Base plate; 2. First fixed plate; 3. Second fixed plate; 4. Support plate; 5. Tensioning mechanism; 501. Slide groove; 502. Slider; 503. Tensioning block; 504. Limiting block; 505. First groove; 506. Transmission block; 507. Movable groove; 508. Connecting plate; 509. Second groove; 510. Fixed rod; 511. First hydraulic cylinder; 6. Raw material; 7. Second hydraulic cylinder; 8. Flange; 9. Transmission plate; 10. Connecting block; 11. Extrusion plate; 12. Connecting rod. Detailed Implementation

[0014] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0015] like Figures 1 to 8 As shown in the figure, this utility model embodiment proposes a stator clamping mechanism for motor stator processing, including a base plate 1. A first fixing plate 2 and a second fixing plate 3 are respectively installed at both ends of the upper surface of the base plate 1. A support plate 4 is installed on the side of the first fixing plate 2 near the second fixing plate 3. A tensioning mechanism 5 is installed on the support plate 4. A raw material 6 is installed on the outer side of the tensioning mechanism 5. A second hydraulic cylinder 7 is installed on the side of the second fixing plate 3 away from the support plate 4. A pressing plate 11 is installed between the second fixing plate 3 and the raw material 6. The pressing plate 11 is in contact with the raw material 6, and the second hydraulic cylinder 7 is pressed into place. The output end of cylinder 7 moves through the interior of the second fixed plate 3 and is connected to the extrusion plate 11. The tensioning mechanism 5 includes a slide groove 501. The slide groove 501 is arranged in a circumferential array on the side of the support plate 4 near the raw material 6. A slider 502 is movably installed inside each slide groove 501. A tensioning block 503 is installed at the end of the slider 502 that is close to each other. The tensioning blocks 503 are respectively engaged and installed inside the raw material 6. A limit block 504 is installed on the side of the tensioning blocks 503 that is far away from each other. The limit block 504 is respectively engaged and connected to the groove on the inner wall of the raw material 6.

[0016] like Figures 4 to 8As shown, in another embodiment of this utility model, a plurality of connecting blocks 10 are installed on the side of the extrusion plate 11 away from the raw material 6, and a transmission plate 9 is installed on the side of the connecting blocks 10 away from the raw material 6. The transmission plate 9 is connected to the output end of the second hydraulic cylinder 7. A connecting rod 12 is installed on the side of the transmission plate 9 away from the raw material 6. A flange 8 is installed on the end of the connecting rod 12 away from the raw material 6 and the output end of the second hydraulic cylinder 7, respectively. A plurality of bolts are installed between the flanges 8 that are close to each other. The interior of the first fixed plate 2 is provided with a movable groove 507. The movable groove 507 and the sliding groove 501 are connected through each other. A connecting plate 508 is movably installed inside the movable groove 507. The connecting plate 508 is connected to the tensioning plate. Transmission blocks 506 are installed between blocks 503 respectively. First grooves 505 are provided on the side of tensioning blocks 503 that are close to each other. Several second grooves 509 are provided on the outer side of connecting plate 508. Fixing rods 510 are installed inside the first grooves 505 and the second grooves 509 respectively. Transmission blocks 506 are movably installed inside the first grooves 505 and the second grooves 509 respectively. The rods of fixing rods 510 are movably installed through both ends inside the transmission blocks 506. A first hydraulic cylinder 511 is installed on the side of the first fixing plate 2 away from the raw material 6. The output end of the first hydraulic cylinder 511 movably passes through the inside of the first groove 505 and is connected to the connecting plate 508.

[0017] The raw material 6 to be processed is placed on the tensioning mechanism 5 on the outside of the support plate 4, ensuring that the inner wall of the raw material 6 is in initial contact with the tensioning block 503, preparing for subsequent inner positioning. Then, the first hydraulic cylinder 511 is activated, causing the output end of the first hydraulic cylinder 511 to push the connecting plate 508 inside the movable groove 507 to move. When the connecting plate 508 moves, the transmission block 506 connected to the second groove 509 on its outer side by the fixing rod 510 moves accordingly. The other end of the transmission block 506 is connected to the first groove 505 of the tensioning block 503 by the fixing rod 510, thereby driving the tensioning block 503 together with the bottom slider 502 to slide along the circumferential array of sliding grooves 501 on the support plate 4 away from the center of the support plate 4, until the outer side of the tensioning block 503 is tightly fitted with the inner wall of the raw material 6, and the limiting block 504 on the tensioning block 503 is fully engaged with the groove on the inner wall of the raw material 6, completing the precise positioning of the inner side of the raw material 6. Then, the second hydraulic cylinder 7 is activated, causing the second hydraulic cylinder 7 to move. The output end of the first hydraulic cylinder 511 pushes the connecting rod 12, which is connected to it by flange 8 and bolts. The connecting rod 12 drives the transmission plate 9 to move closer to the raw material 6. At the same time, the transmission plate 9 drives the extrusion plate 11 to move synchronously through the connecting block 10 until the extrusion plate 11 is in contact with the raw material 6. Then, as the second hydraulic cylinder 7 continues to push, the extrusion plate 11 can continue to apply pressure to the raw material 6. The extrusion plate 11, together with the support plate 4 and the slider 502, completes the pressing work on the raw material 6. After the processing is completed, the output end of the second hydraulic cylinder 7 is controlled to retract, driving the extrusion plate 11, transmission plate 9, and connecting rod 12 to reset. Then, the output end of the first hydraulic cylinder 511 is controlled to retract, pulling the connecting plate 508 to move in the opposite direction. Through the transmission block 506, the slider 502 and the tensioning block 503 slide along the slide groove 501 towards the center of the support plate 4, so that the limit block 504 is disengaged from the inner wall groove of the raw material 6 and the tensioning block 503 is separated from the inner wall of the raw material 6. Finally, the processed raw material 6 can be removed. The cooperative structure of the connecting plate 508, transmission block 506, slider 502 and slide groove 501 makes the movement trajectory of tension block 503 precise and controllable, ensuring that tension block 503 can expand evenly into the inner wall of raw material 6, realizing uniform force on the inner side of raw material 6, avoiding excessive local force that could cause deformation of raw material 6. The engaging design of limit block 504 and the inner wall groove of raw material 6 further improves the accuracy and stability of inner positioning, effectively limiting the circumferential and axial displacement of raw material 6, ensuring that raw material 6 remains stable during stacking and extrusion.

[0018] The working principle of a stator clamping mechanism for motor stator machining: In use, the raw material 6 to be processed is first placed on the tensioning mechanism 5 on the outside of the support plate 4, ensuring that the inner wall of the raw material 6 is in initial contact with the tensioning block 503, preparing for subsequent inner positioning. Then, the first hydraulic cylinder 511 is activated, causing the output end of the first hydraulic cylinder 511 to push the connecting plate 508 inside the movable groove 507 to move. When the connecting plate 508 moves, the transmission block 506 connected to the second groove 509 on its outer side by the fixing rod 510 moves accordingly. The other end of the transmission block 506 is connected to the first groove 505 of the tensioning block 503 by the fixing rod 510, thereby driving the tensioning block 503 together with the bottom slider 502 to slide along the circumferential array of sliding grooves 501 on the support plate 4 away from the center of the support plate 4, until the outer side of the tensioning block 503 is tightly fitted with the inner wall of the raw material 6, and the limiting block 504 on the tensioning block 503 is fully engaged with the groove on the inner wall of the raw material 6, completing the precise positioning of the inner side of the raw material 6. Then, the second hydraulic cylinder 7 is activated, causing the second hydraulic cylinder 503 to move. The output end of the pressure cylinder 7 pushes the connecting rod 12, which is connected to it via the flange 8 and bolts. The connecting rod 12 drives the transmission plate 9 to move closer to the raw material 6. At the same time, the transmission plate 9 drives the extrusion plate 11 to move synchronously through the connecting block 10 until the extrusion plate 11 is in contact with the raw material 6. Then, as the second hydraulic cylinder 7 continues to push, the extrusion plate 11 can continue to apply pressure to the raw material 6, allowing the extrusion plate 11 to work with the support plate 4 and the slider 502 to complete the pressing work on the raw material 6. After the processing is completed, the output end of the second hydraulic cylinder 7 is first controlled to retract, driving the extrusion plate 11, the transmission plate 9, and the connecting rod 12 to reset. Then, the output end of the first hydraulic cylinder 511 is controlled to retract, pulling the connecting plate 508 to move in the opposite direction. Through the transmission block 506, the slider 502 and the tensioning block 503 slide along the slide groove 501 towards the center of the support plate 4, causing the limit block 504 to disengage from the inner wall groove of the raw material 6 and the tensioning block 503 to separate from the inner wall of the raw material 6. Finally, the processed raw material 6 can be removed.

[0019] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A stator clamping mechanism for motor stator processing, comprising a base plate (1), characterized in that: A first fixing plate (2) and a second fixing plate (3) are respectively installed on both ends of the upper surface of the base plate (1). A support plate (4) is installed on the side of the first fixing plate (2) close to the second fixing plate (3). A tensioning mechanism (5) is installed on the support plate (4). A raw material (6) is installed on the outside of the tensioning mechanism (5). A second hydraulic cylinder (7) is installed on the side of the second fixing plate (3) away from the support plate (4). An extrusion plate (11) is installed between the second fixing plate (3) and the raw material (6). The extrusion plate (11) is in contact with the raw material (6), and the output end of the second hydraulic cylinder (7) moves through the second fixing plate (3). 3) is inside and connected to the extrusion plate (11). The tensioning mechanism (5) includes a slide groove (501). The slide groove (501) is arranged in a circumferential array on the side of the support plate (4) near the raw material (6). Each slide groove (501) is movably installed with a slider (502). Tensioning blocks (503) are installed at the ends of the sliders (502) that are close to each other. The tensioning blocks (503) are respectively engaged and installed inside the raw material (6). Limiting blocks (504) are respectively installed on the sides of the tensioning blocks (503) that are far away from each other. The limiting blocks (504) are respectively engaged and connected with the grooves on the inner wall of the raw material (6).

2. The stator clamping mechanism for motor stator processing according to claim 1, characterized in that: A plurality of connecting blocks (10) are installed on the side of the extrusion plate (11) away from the raw material (6), and a transmission plate (9) is installed on the side of the connecting block (10) away from the raw material (6). The transmission plate (9) is connected to the output end of the second hydraulic cylinder (7).

3. The stator clamping mechanism for motor stator processing according to claim 2, characterized in that: A connecting rod (12) is installed on the side of the transmission plate (9) away from the raw material (6). A flange (8) is installed on the end of the connecting rod (12) away from the raw material (6) and the output end of the second hydraulic cylinder (7). Several bolts are installed between the flanges (8) that are close to each other.

4. The stator clamping mechanism for motor stator processing according to claim 1, characterized in that: The first fixed plate (2) has an internal movable groove (507), which is connected to the sliding groove (501). A connecting plate (508) is movably installed inside the movable groove (507), and a transmission block (506) is installed between the connecting plate (508) and the tensioning block (503).

5. A stator clamping mechanism for motor stator processing according to claim 4, characterized in that: The tensioning blocks (503) are provided with first grooves (505) on their respective sides that are close to each other. The outer side of the connecting plate (508) is provided with several second grooves (509). Fixing rods (510) are installed inside the first grooves (505) and the second grooves (509). The transmission blocks (506) are movably installed inside the first grooves (505) and the second grooves (509), and the rods of the fixing rods (510) are movably installed through both ends inside the transmission blocks (506).

6. A stator clamping mechanism for motor stator processing according to claim 5, characterized in that: A first hydraulic cylinder (511) is installed on the side of the first fixed plate (2) away from the raw material (6). The output end of the first hydraulic cylinder (511) moves through the interior of the first groove (505) and is connected to the connecting plate (508).

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