External cooling assembly for lathe electric spindle

By designing a support sleeve and condensation pipe combined with an air-cooling structure on the outside of the lathe electric spindle, the problem of insufficient heat cooling of the lathe electric spindle is solved, achieving efficient cooling and convenient installation, and improving the spindle's operating efficiency and lifespan.

CN224182098UActive Publication Date: 2026-05-01JUSHENG PRECISION TECHNOLOGY (SHANDONG) CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JUSHENG PRECISION TECHNOLOGY (SHANDONG) CO LTD
Filing Date
2025-05-23
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The existing lathe electric spindle suffers from insufficient heat dissipation during use, affecting its operating efficiency and service life. Traditional heat sinks are ineffective in cooling.

Method used

Design an external cooling assembly, including a support sleeve, mounting side blocks, side mounting boxes, condenser pipes and main fan body, which is fixedly installed on the outside of the main shaft by bolts, and uses a combination of coolant and air cooling for all-round cooling.

Benefits of technology

It achieves comprehensive and efficient cooling of the spindle, improving operating efficiency and service life, and is easy to install with significantly improved cooling effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224182098U_ABST
    Figure CN224182098U_ABST
Patent Text Reader

Abstract

The utility model discloses an external cooling assembly for a lathe motorized spindle, which relates to the field of lathe motorized spindles and comprises a supporting sleeve body, mounting side blocks are uniformly welded on the outer side edge of the supporting sleeve body, fixing through holes are formed in the side edges of the mounting side blocks, a sleeving through hole is formed in the side edge of the supporting sleeve body, and the sleeving through hole is communicated with the mounting side blocks. An annular groove channel is formed in the side edge of the supporting sleeve body, side mounting boxes are symmetrically connected to one side edge of the supporting sleeve body in a butt joint mode, an isolation net plate is fixedly connected to one side edge of each side mounting box in a clamped mode, a ventilation grid is fixedly connected to the side edge, away from the isolation net plate, of each side mounting box in a clamped mode, and a connecting pipe body is connected to one side edge of each side mounting box in an inserted mode. The outer side edge of the supporting sleeve body is fixedly connected with a fixed side box, one end of the fixed side box is horizontally and fixedly connected with a connecting box body, split type is adopted, installation and use are more convenient, and meanwhile cooling and heat dissipation are more comprehensive and efficient under a rotary air cooling structure.
Need to check novelty before this filing date? Find Prior Art

Description

An external cooling assembly for a lathe electric spindle Technical Field

[0001] This utility model relates to the field of lathe electric spindle technology, specifically an external cooling assembly for lathe electric spindles. Background Technology

[0002] An electric spindle is a new technology in the field of CNC machine tools that integrates the machine tool spindle and spindle motor into one unit. The spindle is a complete assembly, including the electric spindle itself and its accessories: the electric spindle, high-frequency inverter, oil mist lubricator, cooling system, built-in encoder, tool changer, etc. This transmission structure, where the spindle motor and machine tool spindle are "integrated," makes the spindle component relatively independent from the machine tool's transmission system and overall structure. Therefore, it can be made into a "spindle unit," commonly known as an "electric spindle." Its characteristics include high speed, high precision, low noise, and an inner ring with a locking mechanism, making it more suitable for spray lubrication.

[0003] When using current lathe electric spindles, the single shaft installed in a designated position for rotation will generate heat. If the heat is not cooled in time, it will affect the operating efficiency of the spindle and, in severe cases, reduce its service life. Traditional cooling structures use heat sinks fixed near the spindle for heat dissipation, which is ineffective and cannot meet current requirements. Summary of the Invention

[0004] The purpose of this utility model is to provide an external cooling component for lathe electric spindles, in order to solve the problem mentioned in the background art that when current lathe electric spindles are in use, the single shaft installed in a designated position and rotating will generate heat in the spindle. If the heat is not cooled in time, it will affect the operating efficiency of the spindle and, in severe cases, affect the service life of the spindle. Traditional cooling structures use heat sinks fixed near the spindle for heat dissipation, which results in poor heat dissipation and cannot meet the current requirements.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An external cooling assembly for a lathe electric spindle includes a support sleeve. Mounting side blocks are uniformly welded to the outer side of the support sleeve. Each mounting side block has a fixing through hole on its side. The support sleeve also has a sleeve-connecting through hole on its side and an annular groove on its side. Side mounting boxes are symmetrically connected to one side of the support sleeve. An isolation mesh plate is fixedly snapped onto one side of the side mounting box. A ventilation grille is fixedly snapped onto the side of the side mounting box away from the isolation mesh plate. A connecting pipe is inserted into one side of the side mounting box. A fixed side box is fixedly connected to the outer side of the support sleeve. One side of the fixed side box... A connecting box is horizontally fixed to the end of the support sleeve. A rotating gear is engaged with the inner side of the support sleeve. A movable side block is engaged with the inner side of the annular channel. One end of the movable side block has evenly spaced mounting through holes. A side through groove is opened on the outer side of the support sleeve. A transmission gear is engaged with the inner side of the fixed side box. An adjusting motor is horizontally fixed to the inner side of the connecting box. One end of the side mounting box has evenly spaced mounting screw holes. A main fan body is horizontally fixed to the inner side of the side mounting box. A supporting inner frame is fixedly engaged with the inner side of the side mounting box. A condensate pipe is fixedly engaged with the inner side of the supporting inner frame.

[0007] In a preferred embodiment of this utility model, there are multiple mounting side blocks, which are arranged in a ring at equal intervals on the outer edge of the support sleeve, and a fixing through hole is opened through the center of the side of the mounting side block.

[0008] In a preferred embodiment of this utility model, the through hole is opened in the center of the side of the support sleeve, the annular channel is set in a semi-annular shape, and the annular channel is opened on the side of the support sleeve near the edge, and the interior of the annular channel is connected to the interior of the support sleeve.

[0009] In a preferred embodiment of this utility model, there are two side mounting boxes, which are arranged in parallel with each other. One end of the side mounting box is connected to the side of the movable side block. The isolation mesh plate and the venting grille are symmetrically fixed inside the openings on both sides of the side mounting box. One end of the connecting pipe extends and is fixedly connected to both ends of the condensate pipe to maintain continuity.

[0010] In a preferred embodiment of this utility model: the opening end of the fixed side box is fastened to the opening end of the side through groove to maintain communication, one end of the movable side block is through-fitted to the inner side of the annular groove, and the extension end is fixedly connected to the side of the rotating gear plate, and the side through groove is connected to the inside of the support sleeve.

[0011] In a preferred embodiment of this utility model: the side through groove of the transmission gear extends into the interior, and the extended side is toothed with the rotating gear disk. The output end of the adjusting motor extends horizontally and is fixedly connected to the center position of the transmission gear. The main fan body and the condenser pipe are arranged in parallel to each other.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention features a support sleeve that is fitted onto the outer side of the main shaft through a central through-hole. Bolts are then used to secure the mounting side blocks through the through-holes. Two side mounting boxes are arranged parallel to each other on the outer side of the main shaft. One end of each side mounting box is attached to the side of the movable side block and secured with bolts through the mounting through-holes and corresponding mounting screw holes. A coolant pipe is fixedly connected to one end of a connecting pipe, allowing coolant to enter the condenser pipe. After being transported through the condenser pipe, the coolant, under the operation of the internal main fan, provides air cooling to the outer side of the main shaft. Controlling the rotation of the regulating motor drives the transmission gear, which in turn drives the rotating gear disc, causing the movable side block to rotate along the annular groove. This allows the two side mounting boxes to rotate around the main shaft for comprehensive cooling. The modular design makes installation and use more convenient, and the rotating air-cooling structure ensures more comprehensive and efficient cooling. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 is a three-dimensional structural schematic diagram of an external cooling assembly for a lathe electric spindle;

[0016] Figure 2 is a schematic diagram showing the three-dimensional connection details of a support sleeve for an external cooling assembly of a lathe electric spindle;

[0017] Figure 3 is a schematic diagram showing the three-dimensional connection details of the fixed side box of an external cooling assembly for a lathe electric spindle;

[0018] Figure 4 is a structural schematic diagram showing the connection details of a three-dimensional cross-section of the side mounting box of an external cooling assembly for a lathe electric spindle.

[0019] In the diagram: 1. Support sleeve; 2. Mounting side block; 3. Fixing through hole; 4. Sleeve through hole; 5. Annular groove; 6. Side mounting box; 7. Isolation mesh plate; 8. Ventilation grille; 9. Connecting pipe; 10. Fixing side box; 11. Connecting box body; 12. Rotating gear; 13. Moving side block; 14. Mounting through hole; 15. Side through groove; 16. Transmission gear; 17. Adjusting motor; 18. Mounting screw hole; 19. Main fan body; 20. Support inner frame; 21. Condensate pipe. Detailed Implementation

[0020] Please refer to Figure 1. In this embodiment of the present invention, an external cooling assembly for a lathe electric spindle includes a support sleeve 1. Mounting side blocks 2 are uniformly welded to the outer side of the support sleeve 1. Fixing through holes 3 are provided on the side of each mounting side block 2. Multiple mounting side blocks 2 are arranged in a ring at equal intervals along the outer edge of the support sleeve 1. The fixing through holes 3 are provided through the center of the side of each mounting side block 2. A sleeve through hole 4 and an annular groove 5 are provided on the side of the support sleeve 1. The sleeve through hole 4 is provided through the center of the side of the support sleeve 1. The annular groove 5 is semi-annular in shape and is located near the edge of the side of the support sleeve 1. The interior of the annular groove 5 is connected to the support sleeve 1. The internal connection is maintained. A side mounting box 6 is symmetrically connected to one side of the support sleeve 1. An isolation mesh plate 7 is fixedly snapped to one side of the side mounting box 6. A ventilating grille 8 is fixedly snapped to the side of the side mounting box 6 away from the isolation mesh plate 7. A connecting pipe 9 is inserted into one side of the side mounting box 6. There are two side mounting boxes 6, and the two side mounting boxes 6 are arranged in parallel with each other. One end of the side mounting box 6 is connected to the side of the movable side block 13. The isolation mesh plate 7 and the ventilating grille 8 are symmetrically fixed inside the two openings of the side mounting box 6. One end of the connecting pipe 9 extends and is fixedly connected to both ends of the condensation pipe 21 to maintain a connection. A fixed side box 10 is fixedly connected to the outer side of the support sleeve 1. A connecting box 11 is horizontally fixedly connected to one end of the fixed side box 10.

[0021] Please refer to Figures 2-4. In this embodiment of the present invention, an external cooling assembly for a lathe electric spindle is provided. A rotating gear disk 12 is engaged with the inner side of a support sleeve 1, and a movable side block 13 is engaged with the inner side of an annular groove 5. One end of the movable side block 13 has evenly spaced mounting through holes 14. A side through groove 15 is provided on the outer side of the support sleeve 1. The opening end of a fixed side box 10 is fastened to the opening end of the side through groove 15 to maintain communication. One end of each movable side block 13 is through-engaged to the inner side of the annular groove 5, and its extended end is fixedly connected to the side of the rotating gear disk 12. The side through groove 15 maintains communication with the interior of the support sleeve 1. The fixed side box 10... A transmission gear 16 is snapped onto the inner side of the connecting box 11. An adjusting motor 17 is horizontally fixedly installed on the inner side of the connecting box 11. One end of the side mounting box 6 is evenly provided with mounting screw holes 18. The main fan body 19 is horizontally fixedly connected to the inner side of the side mounting box 6. The side of the transmission gear 16 extends into the interior through the side through groove 15, and the extended side is toothed with the rotating gear 12. The output end of the adjusting motor 17 is horizontally extended and fixedly connected to the center position of the transmission gear 16. The main fan body 19 and the condensing pipe 21 are arranged in parallel with each other. A supporting inner frame 20 is fixedly snapped onto the inner side of the side mounting box 6, and the condensing pipe 21 is fixedly snapped onto the inner side of the supporting inner frame 20.

[0022] The working principle of this utility model is as follows:

[0023] The support sleeve 1 is fitted onto the outer side of the main shaft through the central connecting hole 4. The mounting side block 2 is fixed in place by bolts passing through the fixing through hole 3. Two side mounting boxes 6 are arranged parallel to each other on the outer side of the main shaft. One end of each side mounting box 6 is aligned with the side of the movable side block 13 and then fixedly connected by bolts through the mounting through hole 14 and the corresponding mounting screw hole 18, thus fixing the side mounting box 6 in place. The coolant pipe is fixedly connected to one end of the connecting pipe 9, allowing the coolant to enter the condenser pipe 21 through the connecting pipe 9. After being transported through the condenser pipe 21, the coolant, under the operation of the internal main fan 19, provides air cooling to the outer side of the main shaft. Controlling the rotation of the regulating motor 17 drives the transmission gear 16, which in turn drives the rotating gear disk 12, causing the movable side block 13 to rotate along the annular groove 5. This allows the two side mounting boxes 6 to rotate around the main shaft for comprehensive cooling.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An external cooling assembly for a lathe electric spindle, comprising a support sleeve (1), characterized in that, The outer side of the support sleeve (1) is uniformly welded with mounting side blocks (2), the side of the mounting side block (2) is provided with a fixing through hole (3), the side of the support sleeve (1) is provided with a sleeve through hole (4), the side of the support sleeve (1) is provided with an annular groove (5), the side of the support sleeve (1) is symmetrically connected with a side mounting box (6), the side of the side mounting box (6) is fixedly snapped with an isolation mesh plate (7), the side of the side mounting box (6) away from the isolation mesh plate (7) is fixedly snapped with a breathable grille (8), the side of the side mounting box (6) is inserted with a connecting pipe (9), the outer side of the support sleeve (1) is fixedly connected with a fixing side box (10), one end of the fixing side box (10) is horizontally fixedly connected with a connecting box body (11), the... A rotating gear disk (12) is snapped onto the inner side of the support sleeve (1), a movable side block (13) is snapped onto the inner side of the annular channel (5), an installation through hole (14) is uniformly opened at one end of the movable side block (13), a side through groove (15) is opened on the outer side of the support sleeve (1), a transmission gear (16) is snapped onto the inner side of the fixed side box (10), an adjusting motor (17) is horizontally fixedly installed on the inner side of the connecting box (11), an installation screw hole (18) is uniformly opened at one end of the side mounting box (6), a main fan body (19) is horizontally fixedly connected to the inner side of the side mounting box (6), a support inner frame (20) is fixedly snapped onto the inner side of the side mounting box (6), and a condensate pipe (21) is fixedly snapped onto the inner side of the support inner frame (20).

2. The external cooling assembly for a lathe electric spindle according to claim 1, characterized in that, The number of mounting side blocks (2) is multiple, and the multiple mounting side blocks (2) are arranged in a ring at equal intervals on the outer edge of the support sleeve (1), and the fixing through hole (3) is opened through the center of the side of the mounting side block (2).

3. The external cooling assembly for a lathe electric spindle according to claim 1, characterized in that, The through hole (4) is opened through the center of the side of the support sleeve (1). The annular channel (5) is set in a semi-annular shape and is opened on the side of the support sleeve (1) near the edge. The interior of the annular channel (5) is connected to the interior of the support sleeve (1).

4. The external cooling assembly for a lathe electric spindle according to claim 1, characterized in that, There are two side mounting boxes (6), and the two side mounting boxes (6) are arranged in parallel to each other. One end of the side mounting box (6) is connected to the side of the movable side block (13). The isolation mesh plate (7) and the ventilation grille (8) are symmetrically fixed inside the openings on both sides of the side mounting box (6). One end of the connecting pipe (9) is extended and fixedly connected to both ends of the condensate pipe (21) to maintain communication.

5. The external cooling assembly for a lathe electric spindle according to claim 1, characterized in that, The opening end of the fixed side box (10) is fastened to the opening end of the side through groove (15) to maintain communication. One end of the movable side block (13) is through-fitted to the inner side of the annular groove (5), and the extension end is fixedly connected to the side of the rotating gear plate (12). The side through groove (15) and the inside of the support sleeve (1) are maintained in communication.

6. The external cooling assembly for a lathe electric spindle according to claim 1, characterized in that, The side through groove (15) of the transmission gear (16) extends into the interior, and the extended side is toothed with the rotating gear disk (12). The output end of the regulating motor (17) is horizontally extended and fixedly connected to the center of the transmission gear (16). The main fan body (19) and the condenser pipe (21) are arranged in parallel to each other.