Rotor machining workpiece
By designing limiting and buffer components, the problem of shaft misalignment caused by connecting plate offset was solved, which improved the accuracy and stability of rotor processing, reduced the defect rate and noise, and extended the equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU CHANGHUA ELECTRIC CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-07-03
AI Technical Summary
In existing rotor processing equipment, the connecting plate is prone to displacement, which causes the axis of the limiting cylinder and the pressing column to be misaligned, resulting in jamming or uneven force during the pressing process, reducing processing accuracy and stability.
The system employs limit and positioning components, achieving precise alignment between the limit cylinder and the pressing column through threaded transmission and gear meshing. It also uses a buffer component to absorb impact force, ensuring uniform force distribution and preventing deformation and jamming.
It improves the precision and stability of rotor processing, reduces the defect rate, extends equipment life, creates a quiet working environment, and improves production efficiency.
Smart Images

Figure CN224459573U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rotor processing technology, and specifically relates to a rotor processing workpiece. Background Technology
[0002] The rotor is the core component of rotating machinery, typically composed of a shaft, impeller, coupling, etc. It rotates at high speed in equipment such as motors, turbines, and compressors, transmitting energy or achieving working cycles through principles such as electromagnetic induction and fluid dynamics. Its design precision, material strength, and dynamic balance performance directly affect the stability and efficiency of the equipment, making it a crucial foundational component for the normal operation of the mechanical system. Rotor machining is a key step in rotating machinery manufacturing, primarily involving the core rotating components of equipment such as motors, turbines, and compressors. Machining encompasses turning, milling, and grinding of shaft parts; five-axis simultaneous machining of impellers; and precision assembly of components such as couplings.
[0003] Announcement No. "CN219107253U" discloses a rotor lamination pressing device, comprising a device body, an externally fixedly connected mounting frame, an internally fixedly connected hydraulic push rod, an externally fixedly connected fixing plate, an externally fixedly connected pressing column, and an externally fixedly connected processing damping structure. This rotor lamination pressing device, by incorporating rubber pads, prevents collisions between the connecting plate and the mounting platform when the pressing column presses the rotor laminations. By incorporating limiting cylinders, it facilitates the stacking of rotor laminations, allowing for the pressing of up to fifteen rotor laminations at a time without waiting for the previous pressing operation to complete. This results in high efficiency, eliminates waiting time, reduces the total processing time and cost, and by incorporating damping springs, effectively reduces vibration generated during operation.
[0004] Although the above-mentioned utility model can stack rotor laminations without waiting for the previous pressing operation to complete, which is efficient, saves waiting time, and reduces the total processing time and cost of rotor processing, the connecting plate is easily offset by sliding and guiding it on one side only through the inner wall of the C-shaped mounting platform. This can cause the axis of the limiting cylinder and the pressing column to be misaligned. Moreover, when the connecting plate is slightly offset, the pressing column is difficult to insert smoothly into the limiting cylinder, which can lead to jamming or uneven force during the pressing process, reducing the processing accuracy and stability of the device. Utility Model Content
[0005] In response to the problems mentioned in the background art, the purpose of this utility model is to provide a rotor for machining workpieces, so as to solve the problem that the connecting plate is prone to displacement when the connecting plate is unilaterally slidably guided by the inner wall of the C-shaped mounting platform, which leads to misalignment between the axis of the limiting cylinder and the pressing column. Moreover, when the connecting plate is slightly offset, the pressing column is difficult to smoothly insert into the limiting cylinder, which will cause jamming or uneven force during the pressing process, reducing the processing accuracy and stability of the device.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0007] A rotor for machining workpieces includes a worktable, a top plate fixedly connected to the top of the worktable via a support column, a cylinder mounted on the top of the top plate, a lifting seat fixedly connected to the telescopic end of the cylinder, pressing columns symmetrically fixedly connected to the bottom of the lifting seat via a fixed plate, a mounting seat fixedly connected to the top of the worktable, a sliding groove provided on one side of the mounting seat, a tray slidably connected inside the sliding groove, limit cylinders symmetrically fixedly connected to the top of the tray, and limit components symmetrically mounted on the top of the mounting seat.
[0008] The limiting assembly includes a rotating column, a first threaded hole, a threaded rod, a limiting block, a drive gear, and a driven gear. The rotating column is symmetrically rotatably connected to the top of the mounting base. The rotating column has a first threaded hole at its top, and a threaded rod is threadedly connected inside the first threaded hole. A limiting block is fixedly connected to the top of the threaded rod. A driven gear is fixedly sleeved on the outside of the rotating column. A drive gear, with a diameter larger than the driven gear, is rotatably connected to the top of the mounting base. The drive gear and driven gear mesh with each other. The tray has symmetrically opened second threaded holes at its top, and the threaded rod is threadedly connected to the second threaded hole. This allows for precise alignment of the limiting cylinder and the pressing column, ensuring uniform force on the rotor laminations during pressing. This avoids localized stress concentration that could lead to lamination deformation or warping, ensuring lamination flatness and dimensional accuracy, improving the quality of the rotor's core components, and guaranteeing the stability of the pressing mechanism. It also reduces abnormal shaking or jamming caused by component misalignment, effectively reducing lamination displacement and pressure deviation during processing, lowering the defect rate, and improving production efficiency.
[0009] As a preferred technical solution, positioning components are installed on both sides of the tray. The positioning components include built-in holes, return springs, and positioning posts. Built-in holes are symmetrically opened on both sides of the tray. A return spring is fixedly connected to the bottom of the built-in hole, and a positioning post is fixedly connected to the other end of the return spring. The positioning post is slidably connected to the inside of the built-in hole. The other end of the positioning post extends out of the outside of the tray and is arc-shaped. Positioning holes are symmetrically opened on one side of the sliding groove. The positioning post and the positioning hole are snap-fitted together, which allows the tray to be automatically aligned when inserted into the sliding groove without the need for manual fine adjustment, greatly improving installation efficiency and ensuring the initial alignment accuracy of the limit cylinder and the pressing post.
[0010] As a preferred technical solution, a buffer plate is slidably sleeved on the outside of the support column, and a buffer spring is sleeved on the outside of the support column. The two ends of the buffer spring are fixedly connected to the bottom of the buffer plate and the top of the worktable, respectively. This effectively absorbs the impact force when the pressing column is pressed down, preventing the rotor laminations from being deformed or cracked due to excessive instantaneous pressure. At the same time, it reduces rigid collisions of components such as cylinders and pressing columns, ensuring stable processing quality and extending the service life of the equipment. Moreover, during the buffering process, the elastic buffering effect of the spring can suppress the vibration generated during the operation of the device and reduce the noise generated by the friction and collision of components by absorbing vibration energy, creating a more stable and quiet working environment.
[0011] As a preferred technical solution, the bottom of the tray is symmetrically provided with through holes, which are connected to the inside of the limiting cylinder. A collection box is fixedly connected to one side of the workbench. By pulling the tray, the punches are moved to the top of the collection box, and gravity is used to realize automatic material dropping. There is no need for manual removal of parts one by one, which reduces the process time and is suitable for mass production on the assembly line.
[0012] In summary, the present invention has the following main advantages:
[0013] First, in this utility model, the tray is pushed into the sliding groove of the mounting base. After the tray is positioned by the positioning component, the knob is turned to control the drive gear to rotate. The drive gear drives the driven gear to rotate, and the driven gear drives the rotating column to rotate. At the same time, the first threaded hole and the threaded rod are threaded to drive each other, thereby controlling the threaded rod to move forward and connect with the second threaded hole. This can make the limiting cylinder and the pressing column accurately aligned, so that the rotor lamination is subjected to uniform force when pressed, avoiding local stress concentration that causes lamination deformation and warping, ensuring the flatness and dimensional accuracy of the lamination, improving the quality of the core components of the rotor, and ensuring the stability of the pressing mechanism. This reduces abnormal shaking or jamming caused by component misalignment, effectively reducing problems such as lamination displacement and pressure deviation during processing, reducing the defect rate, and improving production efficiency.
[0014] Secondly, in this utility model, the rotor laminations are sequentially placed into the limiting cylinder on the tray. The cylinder is activated, and the lifting seat is controlled to lower the pressing column via the fixed plate. The pressing column presses against the inside of the limiting cylinder, pressing the rotor laminations tightly. At the same time, the lifting seat drives the pressure block to slide on the outside of the support column. The pressure block descends and presses against the buffer plate, which in turn presses against the buffer spring. This effectively absorbs the impact force when the pressing column presses down, preventing the rotor laminations from being deformed or cracked due to excessive instantaneous pressure. It also reduces rigid collisions between components such as the cylinder and the pressing column, ensuring stable processing quality and extending the service life of the equipment. Furthermore, during the buffering process, the elastic buffering effect of the spring can suppress the vibration generated during the operation of the device and reduce the noise generated by the friction and collision of components by absorbing vibration energy, creating a more stable and quiet working environment. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0016] Figure 2 This is the utility model Figure 1 Enlarged view of part A.
[0017] Figure 3 This is a three-dimensional structural diagram of the other side of this utility model.
[0018] Figure 4 This is a three-dimensional structural diagram of the present invention viewed from below.
[0019] Figure 5 This is a cross-sectional three-dimensional structural diagram of the positioning component of this utility model.
[0020] Reference numerals: 1. Workbench; 2. Support column; 3. Top plate; 4. Cylinder; 5. Lifting seat; 6. Fixing plate; 7. Pressing column; 8. Mounting seat; 9. Sliding groove; 10. Tray; 11. Limiting cylinder; 12. Through hole; 13. Limiting component; 131. Rotating column; 132. First threaded hole; 133. Threaded rod; 134. Limiting block; 135. Drive gear; 136. Driven gear; 14. Second threaded hole; 15. Positioning component; 151. Internal hole; 152. Return spring; 153. Positioning column; 16. Positioning hole; 17. Pressing block; 18. Buffer plate; 19. Buffer spring; 20. Collection box. Detailed Implementation
[0021] Example
[0022] refer to Figures 1 to 5 The rotor machining workpiece described in this embodiment includes a worktable 1. A top plate 3 is fixedly connected to the top of the worktable 1 via a support column 2. A cylinder 4 is installed on the top of the top plate 3. A lifting seat 5 is fixedly connected to the telescopic end of the cylinder 4. Pressing columns 7 are symmetrically fixedly connected to the bottom of the lifting seat 5 via a fixing plate 6. An installation seat 8 is fixedly connected to the top of the worktable 1. A sliding groove 9 is provided on one side of the installation seat 8. A tray 10 is slidably connected inside the sliding groove 9. Limiting cylinders 11 are symmetrically fixedly connected to the top of the tray 10. Limiting components 13 are symmetrically installed on the top of the installation seat 8.
[0023] The limiting assembly 13 includes a rotating column 131, a first threaded hole 132, a threaded rod 133, a limiting block 134, a drive gear 135, and a driven gear 136. The rotating column 131 is symmetrically rotatably connected to the top of the mounting base 8. The first threaded hole 132 is opened on the top of the rotating column 131, and the threaded rod 133 is threadedly connected inside the first threaded hole 132. The limiting block 134 is fixedly connected to the top of the threaded rod 133. The driven gear 136 is fixedly sleeved on the outer side of the rotating column 131. The drive gear 135 is rotatably connected to the top of the mounting base 8. The diameter of the drive gear 135 is larger than the diameter of the driven gear 136. 135 meshes with the driven gear 136. The top of the tray 10 is symmetrically provided with second threaded holes 14. The threaded rod 133 is threadedly connected to the second threaded hole 14. The tray 10 is pushed into the sliding groove 9 of the mounting base 8. After the tray 10 is positioned by the positioning component 15, the knob is turned to control the drive gear 135 to rotate. The drive gear 135 drives the driven gear 136 to rotate. The driven gear 136 drives the rotating column 131 to rotate. At the same time, the first threaded hole 132 and the threaded rod 133 perform threaded transmission, thereby controlling the threaded rod 133 to move forward and connect with the second threaded hole 14.
[0024] refer to Figure 5 Positioning components 15 are installed on both sides of the tray 10. Each positioning component 15 includes an internal hole 151, a return spring 152, and a positioning post 153. Internal holes 151 are symmetrically opened on both sides of the tray 10. A return spring 152 is fixedly connected to the bottom of each internal hole 151, and a positioning post 153 is fixedly connected to the other end of the return spring 152. The positioning post 153 is slidably connected to the inside of the internal hole 151. The other end of the positioning post 153 extends outward from the outside of the tray 10 and is arc-shaped. Positioning holes 153 are symmetrically opened on one side of the sliding groove 9. 6. The positioning post 153 is engaged with the positioning hole 16. When the tray 10 is pushed into the sliding groove 9 of the mounting base 8, the squeezing force applies pressure to the arc-shaped end of the positioning post 153, causing the positioning post 153 to slide inside the inner hole 151 and press against the return spring 152. The return spring 152 is compressed, and the positioning post 153 retracts into the inner hole 151. When the positioning post 153 moves to the positioning hole 16, the return spring 152 resets, and the positioning post 153 pops out and engages with the positioning hole 16.
[0025] refer to Figure 3A buffer plate 18 is slidably sleeved on the outside of the support column 2, and a buffer spring 19 is sleeved on the outside of the support column 2. The two ends of the buffer spring 19 are fixedly connected to the bottom of the buffer plate 18 and the top of the workbench 1, respectively. The rotor laminations are placed into the limiting cylinder 11 on the tray 10 in sequence. The cylinder 4 is started, and the lifting seat 5 is controlled to drive the pressing column 7 to descend through the fixing plate 6. The pressing column 7 presses into the limiting cylinder 11 to press the rotor laminations tightly. At the same time, the lifting seat 5 drives the pressing block 17 to slide on the outside of the support column 2. The pressing block 17 descends and presses against the buffer plate 18. The buffer plate 18 presses against the buffer spring 19, and the buffer spring 19 is compressed.
[0026] refer to Figure 4 The bottom of the tray 10 is symmetrically provided with through holes 12, which are connected to the inside of the limiting cylinder 11. A collection box 20 is fixedly connected to one side of the workbench 1. When the rotor lamination is pressed, the tray 10 is pulled outward, and the rotor lamination inside the limiting cylinder 11 moves at the same time. When it moves above the collection box 20, the rotor lamination falls into the collection box 20 through the through hole 12.
[0027] Operating principle and advantages: First, the tray 10 is pushed into the sliding groove 9 of the mounting base 8. During the pushing process, the squeezing force applies pressure to the arc-shaped end of the positioning pin 153, causing the positioning pin 153 to slide inside the inner hole 151. At the same time, it presses against the return spring 152, compressing the return spring 152 and causing the positioning pin 153 to retract into the inner hole 151. When the positioning pin 153 moves to the positioning hole 16, the return spring 152 returns to its original position, and the positioning pin 153 pops out and engages with the positioning hole 16. Then, the knob is turned to control the drive gear 135 to rotate. The drive gear 135 drives... The driven gear 136 rotates, which drives the rotating column 131 to rotate. At the same time, the first threaded hole 132 and the threaded rod 133 perform threaded transmission, thereby controlling the threaded rod 133 to move forward and connect with the second threaded hole 14. The cylinder 4 is activated, which controls the lifting seat 5 to drive the pressing column 7 to descend through the fixed plate 6. The pressing column 7 presses against the inside of the limiting cylinder 11 to press the rotor lamination tightly. At the same time, the lifting seat 5 drives the pressure block 17 to slide on the outside of the support column 2. The pressure block 17 descends and presses against the buffer plate 18. The buffer plate 18 presses against the buffer spring 19, and the buffer spring 19 is compressed.
[0028] This invention enables precise alignment between the limiting cylinder 11 and the pressing column 7, ensuring uniform force distribution on the rotor laminations during clamping. This avoids localized stress concentration that could lead to lamination deformation or warping, ensuring lamination flatness and dimensional accuracy, improving the quality of the rotor's core components, and guaranteeing the stability of the clamping mechanism. It also reduces abnormal shaking or jamming caused by component misalignment, effectively reducing lamination displacement and pressure deviation during processing, lowering the defect rate, and improving production efficiency.
Claims
1. A rotor machining workpiece comprising a worktable (1), characterized in that: The top of the workbench (1) is fixedly connected to a top plate (3) via a support column (2). A cylinder (4) is installed on the top of the top plate (3). A lifting seat (5) is fixedly connected to the telescopic end of the cylinder (4). A pressing column (7) is symmetrically fixedly connected to the bottom of the lifting seat (5) via a fixing plate (6). An installation seat (8) is fixedly connected to the top of the workbench (1). A sliding groove (9) is provided on one side of the installation seat (8). A tray (10) is slidably connected inside the sliding groove (9). A limit cylinder (11) is symmetrically fixedly connected to the top of the tray (10). A limit component (13) is symmetrically installed on the top of the installation seat (8). The limiting component (13) includes a rotating column (131), a first threaded hole (132), a threaded rod (133), a limiting block (134), a drive gear (135), and a driven gear (136). The top of the mounting base (8) is symmetrically rotatably connected to the rotating column (131). The top of the rotating column (131) is provided with a first threaded hole (132). The threaded rod (133) is threadedly connected inside the first threaded hole (132). The top of the threaded rod (133) is fixedly connected to the limiting block (134). The driven gear (136) is fixedly sleeved on the outside of the rotating column (131). The top of the mounting base (8) is rotatably connected to the drive gear (135).
2. A rotor machined workpiece according to claim 1, wherein: The diameter of the drive gear (135) is larger than the diameter of the driven gear (136), and the drive gear (135) and the driven gear (136) mesh with each other.
3. A rotor machined workpiece according to claim 1, wherein: The top of the tray (10) is symmetrically provided with a second threaded hole (14), and the threaded rod (133) is threadedly connected to the second threaded hole (14).
4. A rotor machined workpiece as claimed in claim 1, wherein: Positioning components (15) are installed on both sides of the tray (10). The positioning components (15) include an internal hole (151), a reset spring (152), and a positioning post (153). The internal holes (151) are symmetrically opened on both sides of the tray (10). The reset spring (152) is fixedly connected to the bottom of the internal hole (151). The positioning post (153) is fixedly connected to the other end of the reset spring (152). The positioning post (153) is slidably connected to the inside of the internal hole (151). The other end of the positioning post (153) extends out of the outside of the tray (10) and is arc-shaped.
5. A rotor machined workpiece according to claim 4, wherein: The sliding groove (9) has symmetrically opened positioning holes (16) on one side, and the positioning pin (153) is engaged with the positioning hole (16).
6. A rotor machined workpiece as claimed in claim 1, wherein: A buffer plate (18) is slidably sleeved on the outside of the support column (2), and a buffer spring (19) is sleeved on the outside of the support column (2). The two ends of the buffer spring (19) are fixedly connected to the bottom of the buffer plate (18) and the top of the workbench (1), respectively.
7. A rotor machined workpiece as claimed in claim 1, wherein: The bottom of the tray (10) is symmetrically provided with through holes (12), which are connected to the inside of the limiting cylinder (11). A collection box (20) is fixedly connected to one side of the workbench (1).