Position-adjustable stator casing stamping tool

By designing an adjustable stator housing stamping fixture, and employing a lateral adjustment mechanism consisting of a screw and nut seat driven by a drive motor, and a stable connection between the hydraulic cylinder and the stamping block, the problems of inconvenient adjustment and inflexible positioning of existing fixtures are solved, achieving efficient and precise stamping processing, and improving the versatility of the equipment and the stability of the overall machine operation.

CN224157590UActive Publication Date: 2026-04-24CHONGQING NUOXIN ELECTROMECHANICAL EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING NUOXIN ELECTROMECHANICAL EQUIP CO LTD
Filing Date
2025-05-27
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing stator housing stamping fixtures are inconvenient to adjust during operation, have a narrow range of applicability, and are not flexible enough in stamping positioning. This results in high manual labor intensity, increased equipment maintenance costs, and may cause unstable dimensions and poor coaxiality of stamped parts due to positioning deviations, affecting the overall assembly quality and operational reliability of the machine.

Method used

An adjustable stator housing stamping fixture was designed. It adopts a lateral adjustment mechanism consisting of a screw and nut seat driven by a drive motor. Combined with the sliding cooperation between the bearing frame and the adjustment frame, the stamping block can be flexibly adjusted in three-dimensional space. The stable connection between the hydraulic cylinder and the stamping block ensures that the vertical impact force during the stamping process is uniform and accurate. The clamping structure is reasonably designed to improve the fixing stability of the material and the processing accuracy.

Benefits of technology

It improves the versatility and flexibility of the equipment, enhances the precision and consistency of stamping, reduces manual debugging time and labor intensity, shortens the production preparation cycle, and ensures the dimensional stability of the products and the reliability of the whole machine operation.

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Abstract

The utility model relates to the technical field of stator casing stamping, in particular to a position-adjustable stator casing stamping tool which is characterized in that a screw rod is rotatably connected to the inner side of a top frame, a driving motor is fixedly connected to one side of the outer wall of the top frame through a bolt, and one end of the screw rod penetrates through the side wall of the top frame and is in transmission connection with an output shaft of the driving motor; one end of the screw rod penetrates through and is in screwed connection with a nut seat through threads, a bearing frame is fixedly connected to the bottom of the nut seat, an adjusting frame is slidably connected to the inner side of the bearing frame, a hydraulic oil cylinder is fixedly connected to the inner side of the adjusting frame through bolts, and a stamping block is arranged at the bottom of the adjusting frame. By arranging the transverse adjusting mechanism composed of the screw rod driven by the driving motor and the nut seat and combining sliding fit between the bearing frame and the adjusting frame, the multi-direction adjusting function of the stamping block in the horizontal plane is achieved, and the problem that traditional equipment cannot rapidly adjust the stamping position according to the sizes of different products is effectively solved.
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Description

Technical Field

[0001] This utility model relates to the field of stator housing stamping technology, and in particular to a stator housing stamping fixture with adjustable position. Background Technology

[0002] Stator housing stamping is a crucial processing step in motor manufacturing. It involves punching, stretching, or forming sheet metal to create a standard housing structure for mounting the stator core. This process not only determines the housing's geometric dimensions and shape accuracy but also directly impacts the installation quality of stator components and the overall stability of the machine during subsequent assembly. Therefore, stator housing stamping fixtures, as core equipment for achieving high-precision stamping, occupy a vital position in the field of motor component processing.

[0003] Utility model patent CN206936186U discloses a stator housing stamping fixture, including a worktable. Two sets of guide strips extending along the length direction are provided on the upper side of the worktable. One end of each set of guide strips has a baffle vertically mounted on the worktable. A mounting rod is vertically mounted on the center of the baffle near the two sets of guide strips. A push plate is movably mounted on the mounting rod. A stator is mounted on the mounting rod on the side of the push plate away from the baffle. A housing fixing seat is vertically mounted on the worktable at the end of each set of guide strips away from the baffle. The housing fixing seat has a housing fixing cavity coaxial with the mounting rod on the side near the guide strips. An annular positioning plate is provided at the bottom of the housing fixing cavity. A housing is installed between the positioning plate and the side wall of the housing fixing cavity. This utility model has a simple structure, reduces the difficulty of initial fixing, improves installation efficiency, and can meet the coaxiality requirements of the stator and housing, ensuring product quality.

[0004] However, in practical applications, this type of stamping fixture still has many shortcomings. Specifically, existing stator housing stamping fixtures face problems such as inconvenient adjustment, narrow adaptability, and insufficient flexibility in stamping positioning during operation. This not only significantly increases the intensity of manual labor and equipment maintenance costs, but may also cause unstable dimensions and poor coaxiality of stamped parts due to positioning deviations, thereby affecting the overall assembly quality and operational reliability of the machine. Therefore, to address the many shortcomings of existing technologies, we urgently need an innovative stator housing stamping fixture to solve these problems. Utility Model Content

[0005] The purpose of this utility model is to provide a position-adjustable stator housing stamping fixture, which solves the problems of inconvenient adjustment, narrow adaptability range, and insufficient stamping positioning faced by existing stator housing stamping fixtures during operation. These not only significantly increase the intensity of manual labor and equipment maintenance costs, but may also cause unstable dimensions and poor coaxiality of stamped parts due to positioning deviations, thereby affecting the overall assembly quality and operational reliability of the machine.

[0006] To achieve the above objectives, this utility model provides a position-adjustable stator housing stamping fixture, including a frame, a top frame fixedly connected to the top of the frame, and a clamping frame fixedly connected to the bottom inner side of the frame.

[0007] A screw is rotatably connected to the inner side of the top frame, and a drive motor is fixedly connected to one side of the outer wall of the top frame by bolts. One end of the screw passes through the side wall of the top frame and is connected to the output shaft of the drive motor. One end of the screw passes through and is connected to a nut seat by thread. A bearing frame is fixedly connected to the bottom of the nut seat. An adjusting frame is slidably connected to the inner side of the bearing frame. A hydraulic cylinder is fixedly connected to the inner side of the adjusting frame by bolts. A stamping block is provided at the bottom of the adjusting frame. The output shaft of the hydraulic cylinder passes through the bottom of the adjusting frame and is fixedly connected to the top of the stamping block.

[0008] The clamping frame has clamping plates on both inner sides, and one side of each clamping plate is rotatably connected to a threaded rod via a pivot. One end of each threaded rod passes through the side wall of the clamping frame via a threaded groove.

[0009] The clamping frame has sliding rods fixedly connected to both sides of its inner side, and both ends of the two sliding rods are fitted with sliding sleeves. One side of each of the four sliding sleeves is fixedly connected to one side of the two clamping plates.

[0010] One end of the screw is rotatably connected to the inner wall of the top frame via a rotating shaft, and the other end of the screw passes through the side wall of the top frame via a bearing sleeve.

[0011] The top of the nut seat is fixedly connected to a slider, and the slider is slidably connected to the top of the top frame through a groove.

[0012] The adjusting frame has sliding blocks fixedly connected to both sides, and the two sliding blocks are slidably connected to the inner wall of the supporting frame through sliding grooves. A cylinder is fixedly connected to one side of the outer wall of the frame by bolts, and the output shaft of the cylinder passes through the side wall of the supporting frame and is fixedly connected to one side of the adjusting frame.

[0013] This utility model discloses a position-adjustable stator housing stamping fixture. By incorporating a lateral adjustment mechanism consisting of a screw and nut seat driven by a drive motor, combined with a sliding fit between the support frame and the adjustment frame, it achieves multi-directional adjustment of the stamping block in the horizontal plane. This effectively solves the problem of traditional equipment being unable to quickly adjust the stamping position according to different product sizes, greatly improving the equipment's versatility and flexibility. Secondly, the stable connection structure between the hydraulic cylinder and the stamping block ensures uniform and accurate vertical impact force during the stamping process, improving stamping accuracy and reducing product dimensional instability caused by uneven pressure or positioning deviations. Furthermore, the fixture has a reasonable structural design, is easy to operate, and offers intuitive and efficient adjustment, significantly reducing manual debugging time and labor intensity, shortening the production preparation cycle, and improving overall processing efficiency. In addition, by optimizing the stamping block's position control logic, the stamping consistency of products in the same batch is improved, which helps to enhance the matching degree between the stator and the housing during subsequent assembly, ensuring the stability and reliability of the entire machine operation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall main view structure of an embodiment of this utility model.

[0016] Figure 2 This is a top view of an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the top frame and its structure according to an embodiment of the present utility model.

[0018] Figure 4 This is a schematic diagram of the support frame structure according to an embodiment of the present utility model.

[0019] Figure 5 This is a schematic diagram of the clamping frame structure according to an embodiment of the present utility model.

[0020] 1. Frame; 2. Top frame; 3. Screw; 4. Nut seat; 5. Slider; 6. Slide groove; 7. Drive motor; 8. Bearing frame; 9. Sliding block; 10. Sliding groove; 11. Cylinder; 12. Stamping block; 13. Clamping frame; 14. Clamping plate; 15. Screw; 16. Slide rod; 17. Sliding sleeve; 18. Adjusting frame; 19. Hydraulic cylinder. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] Please see Figure 1-5 An adjustable stator housing stamping fixture includes a frame 1, a top frame 2 fixedly connected to the top of the frame 1, and a clamping frame 13 fixedly connected to the bottom inner side of the frame 1. A screw 3 is rotatably connected to the inner side of the top frame 2, and a drive motor 7 is fixedly connected to one side of the outer wall of the top frame 2 by bolts. One end of the screw 3 passes through the side wall of the top frame 2 and is connected to the output shaft of the drive motor 7. One end of the screw 3 passes through and is connected to a nut seat 4 by threaded connection. A bearing frame 8 is fixedly connected to the bottom of the nut seat 4. An adjusting frame 18 is slidably connected to the inner side of the bearing frame 8. A hydraulic cylinder 19 is fixedly connected to the inner side of the adjusting frame 18 by bolts. A stamping block 12 is provided at the bottom of the adjusting frame 18. The output shaft of the hydraulic cylinder 19 passes through the bottom of the adjusting frame 18 and is fixedly connected to the top of the stamping block 12.

[0023] First, the stator housing material to be stamped is placed in the clamping frame 13 and initially fixed by the clamping device. Then, depending on the required stamping position, the drive motor 7 installed on one side of the outer wall of the top frame 2 is started. The output shaft of the drive motor 7 drives the screw 3 connected to it to rotate. Since the screw 3 and the nut seat 4 are connected by a threaded connection, when the screw 3 rotates, the nut seat 4 can slide along the length of the screw 3 inside the top frame 2, thereby driving the bearing frame 8 fixed to its bottom to move laterally. At the same time, the adjusting frame 18 can slide inside the bearing frame 8, thereby flexibly adjusting the longitudinal position of the stamping block 12. After the precise positioning of the stamping position is completed, the hydraulic cylinder 19 fixed inside the adjusting frame 18 by bolts is started. The output shaft of the hydraulic cylinder 19 pushes the stamping block 12 to move downward in the vertical direction, and finally performs a precise stamping operation on the stator housing material in the clamping frame 13.

[0024] Furthermore, clamping plates 14 are provided on both inner sides of the clamping frame 13, and threaded rods 15 are rotatably connected to one side of each clamping plate 14 via a rotating shaft. One end of each threaded rod 15 passes through the side wall of the clamping frame 13 through a threaded groove. After the stator housing material to be stamped is placed in the clamping frame 13, the clamping plates 14 are moved inward by rotating the threaded rods 15, which achieves a firm clamping of the material and improves the stability and processing accuracy.

[0025] Furthermore, sliding rods 16 are fixedly connected to both sides of the inner side of the clamping frame 13, and sliding sleeves 17 are fitted at both ends of the two sliding rods 16. One side of each of the four sliding sleeves 17 is fixedly connected to one side of the two clamping plates 14. When the clamping plates 14 are moved laterally to clamp or release, the cooperation between the sliding rods 16 and the sliding sleeves 17 ensures the smoothness of the movement of the clamping plates 14 and avoids jamming, thereby improving the ease of operation and the durability of the equipment.

[0026] Furthermore, one end of the screw 3 is rotatably connected to the inner wall of the top frame 2 via a rotating shaft, and the other end of the screw 3 passes through the side wall of the top frame 2 via a bearing sleeve.

[0027] Furthermore, a slider 5 is fixedly connected to the top of the nut seat 4, and the slider 5 is slidably connected to the top of the top frame 2 through the slide groove 6. During the rotation of the screw 3, the slider 5 slides along the slide groove 6, providing additional guidance and preventing the nut seat 4 from deflecting when moving, thereby further improving the position adjustment accuracy and the overall reliability of the equipment.

[0028] Furthermore, sliding blocks 9 are fixedly connected to both sides of the adjusting frame 18, and both sliding blocks 9 are slidably connected to the inner wall of the supporting frame 8 through sliding grooves 10. A cylinder 11 is fixedly connected to one side of the outer wall of the frame 1 by bolts, and the output shaft of the cylinder 11 passes through the side wall of the supporting frame 8 and is fixedly connected to one side of the adjusting frame 18. When it is necessary to adjust the longitudinal position of the stamping block 12, the cylinder 11 is activated to push the adjusting frame 18 to slide along the sliding groove 10, realizing precise position adjustment and improving the flexibility and ease of operation of longitudinal position adjustment. At the same time, the cooperation between the sliding blocks 9 and the sliding groove 10 ensures the stability and smoothness of the adjusting frame 18 during movement, which helps to maintain the high precision requirements of the stamping operation.

[0029] In summary:

[0030] First, the stator housing material to be stamped is placed inside the clamping frame 13. The threaded rods 15 mounted on both sides of the frame are rotated to move the clamping plates 14 inwards, clamping and fixing the material. Simultaneously, the sliding rod 16 and sliding sleeve 17 ensure smooth and uninterrupted movement of the clamping plates 14. Then, depending on the required stamping position, the drive motor 7 mounted on one side of the outer wall of the top frame 2 is activated. The output shaft of the drive motor 7 drives the screw 3, which is connected to it, to rotate. One end of the screw 3 is rotatably connected to the inner wall of the top frame 2 via a rotating shaft, while the other end passes through the side wall of the top frame 2 via a bearing sleeve for stable support. Furthermore, the nut seat 4 and the screw 3 are threadedly connected. Therefore, when the screw 3 rotates, the nut seat 4 can slide along the length of the screw 3 within the top frame 2. The slider 5, fixedly connected to the top of the nut seat 4, slides synchronously in the sliding groove 6, providing guidance and preventing deviation, thereby driving the material... The bottom-fixed support frame 8 enables precise lateral movement. Simultaneously, the adjustment frame 18 can slide inside the support frame 8. Sliding blocks 9 are provided on both sides of the adjustment frame 18, forming a sliding engagement with the sliding groove 10 on the inner wall of the support frame 8, further enhancing the stability of longitudinal adjustment. Furthermore, a cylinder 11 is bolted to one side of the outer wall of the frame 1. The output shaft of the cylinder 11 passes through the side wall of the support frame 8 and is fixedly connected to one side of the adjustment frame 18. When the longitudinal position of the stamping block 12 needs adjustment, the cylinder 11 is activated to push the adjustment frame 18 back and forth, achieving flexible setting of the stamping position. After precise positioning of the stamping position, the hydraulic cylinder 19, bolted to the inside of the adjustment frame 18, is activated. The output shaft of the hydraulic cylinder 19 pushes the stamping block 12 downwards in the vertical direction, ultimately performing a precise stamping operation on the stator housing material in the clamping frame 13. First, the lateral adjustment mechanism, composed of the drive motor 7, screw 3, nut seat 4, slider 5, and slide groove 6, combined with the longitudinal adjustment system consisting of the sliding block 9, slide groove 10, and cylinder 11, enables flexible adjustment of the stamping block 12 in three-dimensional space. This effectively solves the problem that traditional equipment cannot quickly adjust the stamping position according to different product sizes, greatly improving the equipment's versatility and flexibility. Second, the combination structure of the clamping plate 14, threaded rod 15, slide rod 16, and sliding sleeve 17 inside the clamping frame 13 makes the material clamping process more stable and reliable, avoiding processing errors caused by unstable clamping, and improving the product's forming accuracy and... Furthermore, the stable connection structure between the hydraulic cylinder 19 and the stamping block 12 ensures uniform and accurate vertical impact force during the stamping process, reducing product dimensional instability caused by uneven pressure or positioning deviation. In addition, the overall structure of the tooling is reasonably designed, with coordinated linkage between various components, and the operation is simple and intuitive, greatly reducing the time and labor intensity of manual debugging, shortening the production preparation cycle, and improving the overall processing efficiency. By optimizing the position control logic of the stamping block 12, the stamping consistency of products in the same batch is better, which helps to improve the matching degree between the stator and the housing during subsequent assembly, ensuring the stability and reliability of the whole machine operation.

[0031] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A position-adjustable stator housing stamping fixture, comprising a frame, characterized in that, It also includes a top frame fixedly connected to the top of the frame, and a clamping frame fixedly connected to the bottom inner side of the frame; A screw is rotatably connected to the inner side of the top frame, and a drive motor is fixedly connected to one side of the outer wall of the top frame by bolts. One end of the screw passes through the side wall of the top frame and is connected to the output shaft of the drive motor. One end of the screw passes through and is connected to a nut seat by threaded connection. A bearing frame is fixedly connected to the bottom of the nut seat. An adjusting frame is slidably connected to the inner side of the bearing frame. A hydraulic cylinder is fixedly connected to the inner side of the adjusting frame by bolts. A stamping block is provided at the bottom of the adjusting frame. The output shaft of the hydraulic cylinder passes through the bottom of the adjusting frame and is fixedly connected to the top of the stamping block.

2. The position-adjustable stator housing stamping fixture as described in claim 1, characterized in that, The clamping frame has clamping plates on both inner sides, and one side of each clamping plate is rotatably connected to a threaded rod via a pivot. One end of each threaded rod passes through the side wall of the clamping frame via a threaded groove.

3. The position-adjustable stator housing stamping fixture as described in claim 1, characterized in that, The inner sides of the clamping frame are fixedly connected with sliding rods, and both ends of the two sliding rods are fitted with sliding sleeves. One side of each of the four sliding sleeves is fixedly connected to one side of the two clamping plates.

4. The position-adjustable stator housing stamping fixture as described in claim 1, characterized in that, One end of the screw is rotatably connected to the inner wall of the top frame via a rotating shaft, and the other end of the screw passes through the side wall of the top frame via a bearing sleeve.

5. The position-adjustable stator housing stamping fixture as described in claim 1, characterized in that, The top of the nut seat is fixedly connected to a slider, and the slider is slidably connected to the top of the top frame through a groove.

6. The position-adjustable stator housing stamping fixture as described in claim 1, characterized in that, Both sides of the adjustment frame are fixedly connected to sliding blocks, and both sliding blocks are slidably connected to the inner wall of the support frame through sliding grooves. A cylinder is fixedly connected to one side of the outer wall of the frame by bolts, and the output shaft of the cylinder passes through the side wall of the support frame and is fixedly connected to one side of the adjustment frame.

Citation Information

Patent Citations

  • Stator housing punching press frock

    CN206936186U