Spindle stabilizing device of high-speed and high-precision numerically controlled lathe
By designing cooling box support wheels and support limit mechanisms on the CNC lathe spindle, combined with a circulating water cooling system, the problems of spindle instability and excessive temperature were solved, thereby improving machining accuracy and service life.
Patent Information
- Application Number
- CN202520613043.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-02
AI Technical Summary
The spindle of a CNC lathe is unstable in the guide support limit, which leads to reduced machining accuracy and excessive temperature, affecting its service life.
The technology adopted is based on the spindle of a CNC lathe. The spindle is stably supported by the support wheels and support limiting mechanism on both sides of the cooling box, and the spindle is cooled down by the circulating water cooling mechanism.
Stable spindle rotation is achieved, avoiding deviation that could affect machining accuracy. Circulating water cooling is used to prevent overheating and extend spindle lifespan.
Smart Images
Figure CN223916678U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC lathe technology, and in particular to a high-speed, high-precision CNC lathe spindle stabilization device. Background Technology
[0002] CNC lathes are high-precision, high-efficiency automated machine tools equipped with multi-station turrets or power turrets, giving them a wide range of machining capabilities. The spindle is one of the most important components of a CNC lathe. It is mainly used for cutting the inner and outer cylindrical surfaces, inner and outer conical surfaces with arbitrary cone angles, complex rotating inner and outer curved surfaces, and cylindrical and conical threads of shaft or disc-shaped parts. It can also perform grooving, drilling, reaming, boring, and other machining operations.
[0003] However, in related technologies, it is inconvenient to provide stable guidance, support, and limiting for the CNC lathe spindle, which greatly reduces the spindle's stability and consequently reduces machining accuracy. At the same time, it is inconvenient to cool the spindle, causing it to overheat and reduce its service life, thus affecting the spindle's stable machining. Therefore, we propose a high-speed, high-precision CNC lathe spindle stabilization device to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings mentioned above by proposing a high-speed, high-precision CNC lathe spindle stabilization device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A high-speed, high-precision CNC lathe spindle stabilization device includes a cooling box, with sealed bearings fixedly connected to both sides of the cooling box. The spindle of the same CNC lathe is fixedly sleeved inside the inner rings of the two sealed bearings. Support rings are fixedly connected to both sides of the cooling box, and a support limiting mechanism is provided between the support rings and one side of the cooling box. A circulating water cooling mechanism is provided on the cooling box.
[0007] In a preferred embodiment of this utility model, the support and limiting mechanism includes a rotating ring rotatably connected to one side of the cooling box, four threaded cylinders rotatably connected to the outside of the support ring, and four transmission shafts rotatably connected to one side of the cooling box. A drive bevel gear is fixedly sleeved on the outer side of each transmission shaft. An internal gear ring is fixedly sleeved on the inner side of the rotating ring, and the internal gear ring meshes with the four drive gears. A driven bevel gear is fixedly connected to the outer end of each threaded cylinder, and the four drive bevel gears mesh with their corresponding driven bevel gears. A threaded rod is threadedly sleeved inside each threaded cylinder, and a mounting bracket is fixedly connected to the inner end of the threaded rod. The same support wheel is rotatably connected to the inner walls of both sides of the mounting bracket, and the four support wheels movably abut against the outer periphery of the main shaft.
[0008] As a preferred embodiment of this invention, several rotating handles are fixedly connected to the outer side of the rotating ring.
[0009] As a preferred embodiment of this utility model, bearing 1 is fixedly connected to both sides of the cooling box, two rotating rings are respectively fixedly sleeved in the inner ring of the corresponding bearing 1, bearing 2 is fixedly connected to all four sides of the support ring, and four threaded cylinders are respectively fixedly sleeved in the inner ring of the corresponding bearing 2.
[0010] As a preferred embodiment of this utility model, telescopic rods are fixedly connected to the inner circumference of the support ring, and ear plates are fixedly connected to the inner ends of the telescopic rods. The four ear plates are respectively fixedly connected to one side of the corresponding mounting bracket.
[0011] In a preferred embodiment of this utility model, the circulating water cooling mechanism includes a water tank fixedly connected to the top of the cooling tank and a circulating pump fixedly connected to the inner wall of the top of the cooling tank. The circulating pump is connected to the bottom of the water tank, and a water spray pipe is fixedly connected to the bottom of the circulating pump. Several nozzles are fixedly connected to the bottom of the water spray pipe. A water collection shroud is fixedly connected to the inner wall of the bottom of the cooling tank. The bottom end of the water collection shroud is fixedly connected to the rear side of the water tank through the same return pipe. The nozzles are located directly above the main shaft.
[0012] As a preferred embodiment of this utility model, the top of the water tank is fixedly connected to a water inlet pipe, and a sealing cap is threaded onto the outer side of the water inlet pipe.
[0013] As a preferred embodiment of this invention, a drain pipe is fixedly connected to one side of the return pipe, and a control valve is provided on the drain pipe.
[0014] In this invention, a high-speed, high-precision CNC lathe spindle stabilization device provides stable support for the spindle through two sets of support wheels on both sides of the cooling box. This makes the spindle rotation more stable and prevents spindle deviation from affecting machining accuracy. By rotating the handle, the rotating ring and internal gear ring can be rotated. The internal gear ring drives the synchronous rotation of four transmission gears, the transmission shaft, and the active bevel gear. The four active bevel gears drive the four driven bevel gears and the threaded cylinder to rotate. Under the limitation of the telescopic rod and the ear plate, the four threaded cylinders drive the four threaded rods, the mounting bracket, and the support wheels to move synchronously inward or outward. This allows for adjustment of the distance between the four support wheels to support and limit spindles of different diameters. At the same time, pressure can be applied to the four support wheels synchronously to adjust the support force according to the support needs, ensuring the effectiveness of support, limitation, and guidance.
[0015] In this utility model, a high-speed, high-precision CNC lathe spindle stabilization device uses a circulating pump to draw water from the water tank into the spray pipe, and finally sprays cold water from multiple nozzles to cool the spindle, preventing the temperature from being too high and affecting the stability of the spindle machining. The water falls into the water collection hood for collection, and under the pumping of the circulating pump, the water in the cooling tank can be pumped back to the return pipe and water tank for reuse, thus avoiding the waste of water resources.
[0016] This utility model has a reasonable structural design. The two sets of support wheels on both sides of the cooling box can provide stable support for the spindle, making the spindle rotation more stable and preventing the spindle from deviating and affecting the machining accuracy. It can also be used to support and limit spindles of different diameters. At the same time, pressure can be applied to the four support wheels simultaneously so that the support force can be adjusted synchronously according to the support needs, ensuring the support and limiting guidance effect. It can also cool the spindle to prevent the temperature from being too high and affecting the spindle machining accuracy. Attached Figure Description
[0017] Figure 1 This is a first-person perspective stereoscopic view of a high-speed, high-precision CNC lathe spindle stabilization device proposed in this utility model;
[0018] Figure 2 This is a second-view perspective perspective view of a high-speed, high-precision CNC lathe spindle stabilization device proposed in this utility model.
[0019] Figure 3 This is a cross-sectional view of a high-speed, high-precision CNC lathe spindle stabilization device proposed in this utility model;
[0020] Figure 4 for Figure 1 A schematic diagram of the structure of part A.
[0021] In the diagram: 1. Cooling tank; 2. Support ring; 3. Main shaft; 4. Support limiting mechanism; 5. Circulating water cooling mechanism; 6. Sealed bearing; 401. Bearing 1; 402. Rotating ring; 403. Internal gear ring; 404. Drive shaft; 405. Rotary handle; 406. Driving bevel gear; 407. Transmission gear; 408. Driven bevel gear; 409. Threaded cylinder; 410. Bearing 2; 411. Threaded rod; 412. Mounting bracket; 413. Telescopic rod; 414. Ear plate; 415. Support wheel; 51. Water tank; 52. Inlet pipe; 53. Return pipe; 54. Drain pipe; 55. Water collection cover; 56. Circulating pump; 57. Spray pipe; 58. Nozzle. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Reference Figures 1-4 A high-speed, high-precision CNC lathe spindle stabilization device includes a cooling box 1, with sealed bearings 6 fixedly connected to both sides of the cooling box 1. The spindle 3 of the same CNC lathe is fixedly sleeved inside the inner ring of the two sealed bearings 6. Support rings 2 are fixedly connected to both sides of the cooling box 1. A support limiting mechanism 4 is provided between the support ring 2 and one side of the cooling box 1. A circulating water cooling mechanism 5 is provided on the cooling box 1.
[0024] Furthermore, refer to Figures 1-4 The support limiting mechanism 4 includes a rotating ring 402 rotatably connected to one side of the cooling box 1, four threaded cylinders 409 rotatably connected to the outside of the support ring 2, and four transmission shafts 404 rotatably connected to one side of the cooling box 1. The outer side of the transmission shaft 404 is fixedly fitted with a transmission gear 407 and a driving bevel gear 406. The inner side of the rotating ring 402 is fixedly fitted with an internal gear ring 403, which meshes with the four transmission gears 407. The outer end of the threaded cylinder 409 is fixedly connected with a driven bevel gear 408, and the four driving bevel gears 406 mesh with the corresponding driven bevel gears 408. The threaded cylinder 409 is threaded with a threaded rod 411, and the inner end of the threaded rod 411 is fixedly connected with a mounting bracket 412. The same support wheel 415 is rotatably connected to the inner walls of both sides of the mounting bracket 412, and the four support wheels 415 move against the outer periphery of the main shaft 3.
[0025] The above scheme employs two sets of support wheels 415 on both sides of the cooling box 1 to provide stable support for the spindle 3, making the rotation of the spindle 3 more stable and preventing the spindle 3 from shifting and affecting machining accuracy. By rotating the handle 405, the rotating ring 402 and the internal gear ring 403 can be rotated. The internal gear ring 403 drives the four transmission gears 407, the transmission shaft 404, and the driving bevel gear 406 to rotate synchronously. The four driving bevel gears 406 drive the four driven bevel gears 408 and the threaded cylinder 409 to rotate. Under the limitation of the telescopic rod 413 and the ear plate 414, the four threaded cylinders 409 drive the four threaded rods 411, the mounting bracket 412, and the support wheels 415 to move synchronously inward or outward. This allows for adjustment of the distance between the four support wheels 415 to support and limit spindles 3 of different diameters. At the same time, pressure can be applied to the four support wheels 415 synchronously to adjust the support force synchronously according to the support needs, ensuring the effectiveness of support, limitation, and guidance.
[0026] Furthermore, several rotating handles 405 are fixedly connected to the outer side of the rotating ring 402 to facilitate the rotation of the rotating ring 402.
[0027] Furthermore, bearing 401 is fixedly connected to both sides of the cooling box 1, and two rotating rings 402 are respectively fixedly sleeved in the inner ring of the corresponding bearing 401. Bearing 410 is fixedly connected to all four sides of the support ring 2, and four threaded cylinders 409 are respectively fixedly sleeved in the inner ring of the corresponding bearing 410, which facilitates the support of the threaded cylinders 409 and the rotating rings 402, making their rotation more stable and smooth.
[0028] Furthermore, telescopic rods 413 are fixedly connected to the inner circumference of the support ring 2, and ear plates 414 are fixedly connected to the inner end of the telescopic rods 413. The four ear plates 414 are fixedly connected to one side of the corresponding mounting bracket 412, which facilitates the guidance of the mounting bracket 412 and makes its movement more stable.
[0029] Furthermore, refer to Figures 1-3 The circulating water cooling mechanism 5 includes a water tank 51 fixedly connected to the top of the cooling box 1 and a circulating pump 56 fixedly connected to the inner wall of the top of the cooling box 1. The circulating pump 56 is connected to the bottom of the water tank 51. A water spray pipe 57 is fixedly connected to the bottom of the circulating pump 56. Several nozzles 58 are fixedly connected to the bottom of the water spray pipe 57. A water collection cover 55 is fixedly connected to the inner wall of the bottom of the cooling box 1. The bottom end of the water collection cover 55 is fixedly connected to the same return pipe 53 between it and the rear side of the water tank 51. The nozzles 58 are located directly above the main shaft 3.
[0030] The above solution is adopted: the water in the water tank 51 can be pumped into the water spray pipe 57 by the circulation pump 56, and finally the cold water is sprayed out from multiple nozzles 58 to cool the spindle 3, so as to avoid the temperature being too high and affecting the processing stability of the spindle 3. The water falls into the water collection hood 55 for collection. Under the pumping of the circulation pump 56, the water in the cooling tank 1 can be pumped back into the return pipe 53 and the water tank 51 for reuse, thus avoiding the waste of water resources.
[0031] Furthermore, a water inlet pipe 52 is fixedly connected to the top of the water tank 51, and a sealing cap is threaded on the outside of the water inlet pipe 52. A drain pipe 54 is fixedly connected to one side of the return pipe 53, and a control valve is installed on the drain pipe 54 to facilitate regular water replacement.
[0032] In this invention, during use, the two sets of support wheels 415 on both sides of the cooling box 1 provide stable support for the main shaft 3, making the rotation of the main shaft 3 more stable and preventing the main shaft 3 from shifting and affecting the machining accuracy. By rotating the handle 405, the rotating ring 402 and the internal gear ring 403 can be rotated. The internal gear ring 403 drives the four transmission gears 407, the transmission shaft 404 and the driving bevel gear 406 to rotate synchronously. The four driving bevel gears 406 drive the four driven bevel gears 408 and the threaded cylinder 409 to rotate. Under the limitation of the telescopic rod 413 and the ear plate 414, the four threaded cylinders 409 drive the four threaded rods 411, the mounting bracket 412 and the support wheels 415 to move synchronously inward or outward. This allows the spacing between the four support wheels 415 to support and limit the main shaft 3 of different diameters. At the same time, pressure can be applied to the four support wheels 415 synchronously to adjust the support force synchronously according to the support needs, ensuring the support, limiting and guiding effect.
[0033] Meanwhile, the circulating pump 56 draws water from the water tank 51 into the spray pipe 57, and finally sprays cold water from multiple nozzles 58 to cool the spindle 3, preventing the temperature from being too high and affecting the stability of the spindle 3 machining. The water falls into the water collection hood 55 for collection. Under the pumping of the circulating pump 56, the water in the cooling tank 1 can be pumped back into the return pipe 53 and the water tank 51 for reuse, thus avoiding waste of water resources.
Claims
1. A high-speed high-precision CNC lathe spindle stabilizing device, characterized in that, The utility model provides a cooling box (1), both sides of cooling box (1) are fixedly connected with sealed bearing (6), the inner ring of two sealed bearings (6) is fixedly sleeved with the spindle (3) of same numerical control lathe, both sides of cooling box (1) are fixedly connected with support ring (2), be provided with support limiting mechanism (4) between support ring (2) and one side of cooling box (1), be provided with circulating water cooling mechanism (5) on cooling box (1).
2. The high-speed high-precision CNC lathe spindle stabilizing device according to claim 1, characterized in that, The support limiting mechanism (4) includes a rotating ring (402) rotatably connected to one side of the cooling box (1), four threaded cylinders (409) rotatably connected to the outside of the support ring (2), and four transmission shafts (404) rotatably connected to one side of the cooling box (1). The outside of the transmission shaft (404) is fixedly sleeved with a transmission gear (407) and a driving bevel gear (406). The inside of the rotating ring (402) is fixedly sleeved with an internal gear ring (403). The internal gear ring (403) is engaged with the four transmission gears (407). The outer end of the threaded cylinder (409) is fixedly connected with a driven bevel gear (408). The four driving bevel gears (406) are respectively engaged with the corresponding driven bevel gears (408). The threaded cylinder (409) is internally threaded with a threaded rod (411). The inner end of the threaded rod (411) is fixedly connected with a mounting bracket (412). The two inside walls of the mounting bracket (412) are rotatably connected with the same support wheel (415). The four support wheels (415) are movably abutted on the outside of the spindle (3).
3. The high-speed high-precision CNC lathe spindle stabilizing device according to claim 2, characterized in that, The outside of the rotating ring (402) is fixedly connected with a plurality of rotating handles (405).
4. The high-speed high-precision CNC lathe spindle stabilizing device according to claim 2, characterized in that, Both sides of the cooling box (1) are fixedly connected with a bearing one (401). The two rotating rings (402) are respectively fixedly sleeved in the inner ring of the corresponding bearing one (401). The support ring (2) is fixedly connected with a bearing two (410) around. The four threaded cylinders (409) are respectively fixedly sleeved in the inner ring of the corresponding bearing two (410).
5. The high-speed high-precision CNC lathe spindle stabilizing device according to claim 2, characterized in that, The inside of the support ring (2) is fixedly connected with a telescopic rod (413) around. The inner end of the telescopic rod (413) is fixedly connected with an ear plate (414). The four ear plates (414) are respectively fixedly connected to one side of the corresponding mounting bracket (412).
6. The high-speed high-precision CNC lathe spindle stabilizing device according to claim 1, characterized in that, The circulating water cooling mechanism (5) includes a water tank (51) fixedly connected to the top of the cooling box (1) and a circulating pump (56) fixedly connected to the inner wall of the top of the cooling box (1). The circulating pump (56) is in communication with the bottom of the water tank (51). The bottom of the circulating pump (56) is fixedly communicated with a water spray pipe (57). The bottom of the water spray pipe (57) is fixedly communicated with a plurality of spray heads (58). The bottom inner wall of the cooling box (1) is fixedly communicated with a water collecting cover (55). The bottom end of the water collecting cover (55) and the back side of the water tank (51) are fixedly communicated with the same return pipe (53). The spray head (58) is located directly above the spindle (3).
7. The high-speed high-precision CNC lathe spindle stabilizing device according to claim 6, characterized in that, The top of the water tank (51) is fixedly communicated with a water inlet pipe (52). The outside of the water inlet pipe (52) is threadedly sleeved with a sealing cover.
8. The high-speed high-precision CNC lathe spindle stabilizing device according to claim 6, characterized in that, One side of the reflux pipe (53) is fixedly connected with a drain pipe (54), and the drain pipe (54) is provided with a control valve.