Anti-distortion auger mechanism of numerical control machine tool
By using a direct-connection structure and universal joint design, the problems of auger rod jamming and water leakage were solved, resulting in space saving, improved equipment performance, and reduced failure rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI SHENGHE PRECISE MASCH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-15
AI Technical Summary
The poor straightness of traditional auger rods leads to poor chip removal, making it impossible to prevent large parts from falling off. In addition, severe water leakage at the auger mechanism interface causes equipment downtime and maintenance problems.
It adopts a direct-connection structure, uses universal joints and multi-layer sealing ring design to allow the auger rod to float, and combines wear-resistant materials and self-lubricating coating to solve the problems of parts jamming and water leakage, while saving space.
It effectively prevents the auger rod from jamming, prevents water leakage, reduces the equipment footprint, improves equipment performance and workshop utilization, and reduces the failure rate.
Smart Images

Figure CN224238962U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC machine tool technology, and in particular to a CNC machine tool anti-twist auger mechanism. Background Technology
[0002] In traditional applications, poor straightness of the auger rod often leads to poor chip removal. Furthermore, since large parts inevitably fall inside the machine tool, the auger mechanism cannot function. Additionally, water leakage at the auger mechanism's interface is a significant problem, causing considerable issues for the industry. Utility Model Content
[0003] This utility model adopts a direct connection structure, which can save a lot of space and is easy to install. By using a universal joint, it effectively solves the problems of machine downtime and equipment maintenance caused by parts falling and jamming the auger rod.
[0004] The technical solution adopted in this utility model is as follows: a CNC machine tool anti-twist auger mechanism, comprising: a main motor, a main motor adapter bracket, a bearing seat, a fixing plate, a sleeve flange, a sealing ring, a dustproof ring, a rear support wheel, a coupling, a locking nut, a transmission shaft, a universal joint, and an auger rod.
[0005] The main motor is fixed via a main motor adapter bracket, and the bearing housing is fixed to a fixed plate, which is connected to the external bed. The sleeve flange is fixed to the inside of the fixed plate, and the sealing ring and dustproof ring are axially installed inside the sleeve flange. The drive shaft passes through the sealing ring, dustproof ring, and bearing housing in sequence and is locked in place by a locking nut. One end of the coupling is connected to the output shaft of the main motor, and the other end is connected to the drive shaft. One end of the universal joint is connected to the output end of the drive shaft, and the other end is connected to the auger rod. The dustproof ring is located at the front end of the sealing ring and is used to support the weight of the drive shaft and block debris to protect the sealing performance of the sealing ring. The universal joint allows the auger rod to float up and down when parts fall, preventing jamming.
[0006] As a further improvement of this utility model, the combination of the sealing ring and the dustproof ring includes at least three layers of sealing structure, wherein the dustproof ring is made of wear-resistant material and the sealing ring is made of elastic sealing material.
[0007] As a further improvement of this utility model, the universal joint is a cross-shaped universal joint, which allows the auger rod to float with a displacement of not less than 10mm in the vertical direction.
[0008] As a further improvement of this utility model, the rear support wheels are symmetrically arranged on both sides of the outer bed to assist in supporting the rotational stability of the auger rod.
[0009] As a further improvement of this utility model, a radial clearance adjustment device is provided between the drive shaft and the sleeve flange to compensate for the axial deviation of the drive shaft.
[0010] As a further improvement to this invention, the dustproof ring has a stepped cross-section, and its inner wall, in contact with the drive shaft, is coated with a self-lubricating coating.
[0011] As a further improvement of this utility model, the surface of the auger rod is coated with a wear-resistant alloy layer with a thickness of 0.5-1.2mm.
[0012] The beneficial effects of this utility model are as follows: Compared with traditional equipment, this utility model effectively solves three major problems: First, the use of a universal joint effectively solves the problem of the auger rod jamming due to fallen parts inside the machine tool; second, the simultaneous use of a sealing ring and a dustproof ring solves the water leakage problem; third, the direct-connection design of this utility model greatly saves design space. This utility model reduces the footprint of the equipment, solves practical problems for customers, and can also realize the transformation and upgrading of the combination machine tool field, thus possessing high socio-economic value. Attached Figure Description
[0013] Figure 1 This is a perspective view of a CNC machine tool anti-twist auger mechanism according to the present invention;
[0014] Figure 2 This is a front view of a CNC machine tool anti-twist auger mechanism according to this utility model;
[0015] Figure 3 This is a cross-sectional view of a CNC machine tool anti-twist auger mechanism according to the present invention.
[0016] As shown in the figure: 1. Main motor; 2. Main motor adapter bracket; 3. Bearing housing; 4. Fixing plate; 5. Sleeve flange; 6. Sealing ring; 7. Dustproof ring; 8. Rear support wheel; 9. Coupling; 10. Locking nut; 11. Drive shaft; 12. Universal joint; 13. Auger rod. Detailed Implementation
[0017] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.
[0018] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.
[0019] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0020] This utility model provides the following: Figure 1 The CNC machine tool anti-twist auger mechanism shown includes: a main motor 1, a main motor adapter bracket 2, a bearing seat 3, a fixing plate 4, a sleeve flange 5, a sealing ring 6, a dustproof ring 7, a rear support wheel 8, a coupling 9, a locking nut 10, a transmission shaft 11, a universal joint 12, and an auger rod 13.
[0021] The main motor 1 is fixed by the main motor adapter bracket 2, and the bearing housing 3 is fixed on the fixed plate 4. The fixed plate 4 is connected to the external bed. The sleeve flange 5 is fixed inside the fixed plate 4, and the sealing ring 6 and the dustproof ring 7 are axially installed inside the sleeve flange 5. The drive shaft 11 passes through the sealing ring 6, the dustproof ring 7 and the bearing housing 3 in sequence, and is locked and fixed by the locking nut 10. One end of the coupling 9 is connected to the output shaft of the main motor 1, and the other end is connected to the drive shaft 11. One end of the universal joint 12 is connected to the output end of the drive shaft 11, and the other end is connected to the auger rod 13. The dustproof ring 7 is located at the front end of the sealing ring 6 and is used to support the weight of the drive shaft 11 and block debris to protect the sealing performance of the sealing ring 6. The universal joint 12 allows the auger rod 13 to float up and down when parts fall, so as to avoid jamming.
[0022] In this utility model, the combination of sealing ring 6 and dustproof ring 7 includes at least three layers of sealing structure, wherein dustproof ring 7 is made of wear-resistant material and sealing ring 6 is made of elastic sealing material.
[0023] In this utility model, the universal joint 12 is a cross-shaped universal joint, which allows the auger rod 13 to float with a displacement of not less than 10mm in the vertical direction.
[0024] The rear support wheels 8 of this utility model are symmetrically arranged on both sides of the outer bed to assist in supporting the rotational stability of the auger rod 13.
[0025] In this utility model, a radial clearance adjustment device is provided between the drive shaft 11 and the sleeve flange 5 to compensate for the axial deviation of the drive shaft 11.
[0026] In this invention, the dustproof ring 7 has a stepped cross-section, and its inner wall is coated with a self-lubricating coating on the contact surface with the drive shaft 11.
[0027] In this utility model, the surface of the auger rod 13 is coated with a wear-resistant alloy layer with a thickness of 0.5-1.2mm.
[0028] Working principle: The main motor 1 rotates, driving the coupling 9, locking nut 10, drive shaft 11, universal joint 12, and auger rod 13 to rotate together, thereby realizing the overall rotation of the auger rod 13 and discharging the debris. During rotation, the drive shaft 11 is waterproofed by passing through the sealing ring 6 and dustproof ring 7. The dustproof ring 7 provides support during rotation, ensuring that the drive shaft 11 does not twist, preventing the sealing ring 6 from becoming obstructed and causing water leakage. Furthermore, if a part falls onto the machine tool during rotation, its size can often cause it to jam the auger. However, in this invention, due to the use of universal joint 12, if a part falls, the auger will float up and down according to the size of the part, discharging it from the equipment without causing the auger to become stuck.
[0029] In summary, this utility model fundamentally solves the existing problems in the industry. Firstly, it solves the common problem of auger mechanisms getting stuck when encountering fallen parts. Secondly, it solves the problem of water leakage at the auger drive shaft. Finally, it solves the problem of water leakage due to wear of seals in traditional augers. Furthermore, the direct-drive design greatly saves design space and reduces the overall footprint of the equipment, improving workshop utilization for customers. Through the application of this utility model, not only can the overall performance of the equipment be improved, malfunctions reduced, and the accident rate lowered, but the application of this utility model can also provide a valuable reference for the industry, enabling the overall technological advancement within the industry.
[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A CNC machine tool anti-twist auger mechanism, characterized in that, include: Main motor (1), main motor adapter bracket (2), bearing housing (3), fixing plate (4), sleeve flange (5), sealing ring (6), dustproof ring (7), rear support wheel (8), coupling (9), locking nut (10), drive shaft (11), universal joint (12) and auger rod (13), The main motor (1) is fixed by the main motor adapter bracket (2), the bearing seat (3) is fixed on the fixing plate (4), and the fixing plate (4) is connected to the external bed; the sleeve flange (5) is fixed inside the fixing plate (4), and the sealing ring (6) and dustproof ring (7) are axially installed inside the sleeve flange (5); the drive shaft (11) passes through the sealing ring (6), dustproof ring (7) and bearing seat (3) in sequence, and is locked and fixed by the locking nut (10); the connecting One end of the shaft assembly (9) is connected to the output shaft of the main motor (1), and the other end is connected to the drive shaft (11); one end of the universal joint (12) is connected to the output end of the drive shaft (11), and the other end is connected to the auger rod (13); the dustproof ring (7) is located at the front end of the sealing ring (6) and is used to support the weight of the drive shaft (11) and block debris to protect the sealing performance of the sealing ring (6); the universal joint (12) allows the auger rod (13) to float up and down when parts fall, avoiding jamming.
2. The anti-twist auger mechanism for CNC machine tools according to claim 1, characterized in that, The combination of the sealing ring (6) and the dustproof ring (7) includes at least three layers of sealing structure, wherein the dustproof ring (7) is made of wear-resistant material and the sealing ring (6) is made of elastic sealing material.
3. The anti-twist auger mechanism for CNC machine tools according to claim 1, characterized in that, The universal joint (12) is a cross-shaped universal joint, which allows the auger rod (13) to float in the vertical direction with a displacement of not less than 10 mm.
4. The anti-twist auger mechanism for CNC machine tools according to claim 1, characterized in that, The rear support wheels (8) are symmetrically arranged on both sides of the outer bed to assist in supporting the rotational stability of the auger rod (13).
5. The anti-twist auger mechanism for CNC machine tools according to claim 1, characterized in that, A radial clearance adjustment device is provided between the drive shaft (11) and the sleeve flange (5) to compensate for the axial deviation of the drive shaft (11).
6. The anti-twist auger mechanism for CNC machine tools according to claim 1, characterized in that, The dustproof ring (7) has a stepped cross section, and its inner wall is coated with a self-lubricating coating on the contact surface with the drive shaft (11).
7. The anti-twist auger mechanism for CNC machine tools according to claim 1, characterized in that, The surface of the auger rod (13) is coated with a wear-resistant alloy layer with a thickness of 0.5-1.2mm.