Novel electric guide sleeve of core moving machine
By using an independent conductive sleeve structure to rotate synchronously with the motor spindle, the problems of high vibration and noise in existing technologies are solved, achieving high-precision synchronous operation and stable material processing, and adapting to the auxiliary processing needs of long and short materials.
Patent Information
- Application Number
- CN202520353573.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-03
AI Technical Summary
The existing electric guide sleeve of the sliding core machine is difficult to achieve high-precision synchronization when running at high speed, resulting in large vibration and noise of the equipment, reduced lifespan, and affecting the processing of parts.
It adopts an independent conductive sleeve structure, including a protective structure, a rotating structure and a driving structure. It uses angular contact ball bearings and deep groove ball bearings to achieve synchronous rotation with the motor spindle, avoiding vibration and noise caused by the connecting rod. Power is provided by the motor stator and rotor to achieve accurate positioning with 360° infinite indexing.
It achieves synchronous high-speed operation of the conductive sleeve and the motor spindle, reduces vibration and noise, improves equipment life, stabilizes material processing, especially the material support effect for slender materials, and is suitable for auxiliary processing of both long and short materials.
Smart Images
Figure CN223917360U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of CNC sliding head machine technology, and in particular relates to a new type of electric conductive sleeve for sliding head machines. Background Technology
[0002] In the operation of a Swiss-type machining center, the electric guide sleeve serves as an auxiliary shaft to the main spindle. The technology of guide sleeves for Swiss-type machining centers has been continuously researched in the current market. Currently, the most widely used type is the movable guide sleeve, which connects to the main spindle via a linkage mechanism. This structure solves the problem of difficult-to-process materials encountered during machining in current Swiss-type machining centers. However, this structure has a drawback: because of the linkage sleeve, it is difficult to drive the guide sleeve to operate synchronously with high precision after the main spindle reaches high speed. This results in significant vibration and noise during equipment operation, reduces overall lifespan, and negatively impacts parts processing.
[0003] To address the aforementioned issues, we propose a novel electric conductor sleeve for the sliding core mechanism. Utility Model Content
[0004] The purpose of this utility model is to provide a new type of electric conductor sleeve for a sliding core machine, thereby solving the existing problems.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model relates to a novel conductive sleeve for a sliding head machine, comprising a protective structure, a rotating structure, and a driving structure. The protective structure includes a front nut, a front end cover, a rear nut, a rear cover, a body shell, and a rear bearing seat. The rotating structure includes a shaft, a front bearing, and a rear bearing. The driving structure includes a motor stator and a motor rotor.
[0007] The front nut and the inner ring of the front bearing are threaded together and fitted onto the left end of the shaft core; the front end cover and the outer ring of the front bearing are fixed to the left end of the main body shell by screws; the front end cover is fitted onto the outer surface of the front nut.
[0008] The rear nut and the inner ring of the rear bearing are threaded together and fitted onto the right end of the main body shell; the rear cover and the outer ring of the rear bearing are fixed to the right end of the main body shell by screws; the rear bearing seat and the main body shell are fixed to the left end of the main body shell by screws; the main body shell is fixed between the front cover and the rear bearing seat.
[0009] The motor stator is sleeved on the outer surface of the motor rotor, and the motor stator is fixed inside the main body housing.
[0010] In one embodiment, the front bearing is two angular contact ball bearings.
[0011] In one embodiment, the rear bearing is a deep groove ball bearing.
[0012] In one embodiment, the rear cover is fitted onto the outer surface of the rear nut.
[0013] This utility model has the following beneficial effects:
[0014] 1. The electric guide sleeve of the Swiss-type machine is an independent unit. The guide sleeve is composed of a stator unit and a rotor unit, which can independently rotate with the motor spindle and synchronize with the motor spindle without the need for a connecting rod. In this way, the electric guide sleeve can synchronize with the motor spindle to reach high speed, and avoid the vibration and noise caused by the connecting rod.
[0015] 2. When machining slender parts, the motor spindle clamps the bar stock, and the conductive sleeve supports the material at the front end of the machine tool, so that the material is stable when the tool is machining the part, especially when machining slender parts, it plays a supporting role.
[0016] 3. The conductive sleeve is matched with the stator and rotor, and is independently controlled by the system in the equipment. It is synchronized with the main shaft, so it can achieve 360° infinite indexing and accurate positioning.
[0017] 4. The conductive sleeve is independent of the spindle and does not need to be connected. Therefore, it can avoid the problem of excessive inertia caused by excessive centrifugal force due to the excessive length of the connecting parts between the spindle and the guide sleeve. It can easily achieve the purpose of auxiliary processing of materials of different lengths.
[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a cross-sectional view of a novel type of electric conductor sleeve for a sliding core mechanism.
[0021] The attached diagram lists the components represented by each number as follows:
[0022] 11. Front nut; 12. Front end cover; 13. Rear nut; 14. Rear cover; 15. Main body housing; 16. Rear bearing housing; 21. Shaft core; 22. Front bearing; 23. Rear bearing; 31. Motor stator; 32. Motor rotor. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] Example 1
[0027] Please see Figure 1 As shown, this utility model is a novel electric conductor sleeve for a sliding core machine, including a protective structure, a rotating structure, and a driving structure. The protective structure includes a front nut 11, a front end cover 12, a rear nut 13, a rear cover 14, a body shell 15, and a rear bearing seat 16; the rotating structure includes a shaft core 21, a front bearing 22, and a rear bearing 23; the driving structure includes a motor stator 31 and a motor rotor 32.
[0028] The front nut 11 is threadedly pressed onto the inner ring of the front bearing 22 and fitted onto the left end of the shaft core 21; the front cover 12 is screwed onto the outer ring of the front bearing 22 and fixed to the left end of the main body housing 15; the front cover 12 is fitted onto the outer surface of the front nut 11.
[0029] The rear nut 13 and the inner ring of the rear bearing 23 are threaded together and fitted onto the right end of the main body housing 15; the rear cover 14 and the outer ring of the rear bearing 23 are fixed to the right end of the main body housing 15 by screws; the rear bearing seat 16 and the main body housing 15 are fixed to the left end of the main body housing 15 by screws; the main body housing 15 is fixed between the front cover 12 and the rear bearing seat 16.
[0030] The motor stator 31 is sleeved on the outer surface of the motor rotor 32, and the motor stator 31 is fixed inside the main body housing 15.
[0031] Furthermore, the front bearing 22 consists of two angular contact ball bearings.
[0032] Furthermore, the rear bearing 23 is a deep groove ball bearing.
[0033] Furthermore, the rear cover 14 is fitted onto the outer surface of the rear nut 13.
[0034] Example 2
[0035] Please see Figure 1 As shown, further explanation is needed:
[0036] I. In this embodiment, the front end of the structure consists of a shaft core 21, a front nut 11, a front cover 12, a front bearing 22, and a main body housing 15, serving as both a front-end positioning and protection unit. The front bearing 22 uses two angular contact ball bearings in a "DB" bearing configuration, which significantly improves production efficiency. The front bearing 22 is heat-fitted onto the left stepped surface of the shaft core 21, and the right stop end of the front nut 11 has a preload on the inner ring of the front bearing 22. The front cover 12 is secured to the left end face of the main body housing 15 with screws, and the right stop end of the front cover 12 has a preload on the outer ring of the front bearing 22, with a preload of 0.015-0.02 mm. The front bearing 22 is fitted into the left inner hole of the main body housing 15 with clearance. Thus, the front bearing 22, using two angular contact ball bearings in a "DB" bearing configuration, completes the force application.
[0037] Second, the final part of the structure consists of a rear nut 13, a rear cover 14, a main body shell 15, a rear bearing housing 16, and a rear bearing 23, which provide rear-end support and protection. The rear bearing 23 uses a single deep groove ball bearing, effectively saving costs and reducing space. The rear bearing housing 16 is secured to the right end face of the main body shell 15 with screws. The rear bearing 23 is heat-fitted onto the right positioning step surface of the shaft core 21. The left stop end of the rear nut 13 has a preload on the inner ring of the rear bearing 23, and the left stop end of the rear cover 14 has a gap of 0.5-1mm on the outer ring of the rear bearing 23. The rear bearing 23 fits into the left inner hole of the rear bearing housing 16, and the left end of the inner hole of the bearing housing 16 also has a gap of 0.5-1mm on the outer ring of the rear bearing 23. Thus, the rear bearing 23, using a single deep groove ball bearing, completes the bearing assembly's load-bearing support function.
[0038] Third, the middle part of the structure consists of a motor stator 31 and a motor rotor 32, which provide rotational power to the conductive sleeve. The motor rotor 32 is located in the middle position between the heat sleeve and the shaft core 21, and the motor stator 31 is located in the middle position between the heat sleeve and the outer shell 15. The middle position of the built-in motor can provide better power, reduce mechanical transmission loss, and achieve high transmission efficiency and low noise.
[0039] Fourth, the conductive sleeve supports the material at the front end of the machine tool, making the material stable during the machining of parts, especially for machining slender materials, it can play a supporting role. The conductive sleeve and the spindle are controlled by the same system, which makes it easier to adapt to the acceleration and emergency stop of the Swiss-type lathe spindle.
[0040] 5. The conductive sleeve is driven by a rotating structure and independently controlled by the system in the equipment. It can start and stop synchronously with the spindle. The guide sleeve rotates at the same speed as the spindle, so that the workpiece and the guide sleeve rotate at the same speed, so that there is no relative rotation between the two, reducing the wear of the guide sleeve on the surface of the workpiece.
[0041] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0042] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A new type of core walking machine electrical guide sleeve, comprising a protection structure, a rotating structure and a driving structure, characterized in that: The protection structure includes a front nut (11), a front end cover (12), a rear nut (13), a rear cover (14), a body shell (15) and a rear bearing seat (16); the rotating structure includes a shaft core (21), a front bearing (22) and a rear bearing (23); the driving structure includes a motor stator (31) and a motor rotor (32); The front nut (11) is threadedly pressed with the inner ring of the front bearing (22) and is sleeved on the left end of the shaft core (21); the front end cover (12) is fixedly screwed with the outer ring of the front bearing (22) and is fixed on the left end of the body shell (15); the front end cover (12) is sleeved on the outer surface of the front nut (11); The rear nut (13) is threadedly pressed with the inner ring of the rear bearing (23) and is sleeved on the right end of the body shell (15); the rear cover (14) is fixedly screwed with the outer ring of the rear bearing (23) and is fixed on the right end of the body shell (15); the rear bearing seat (16) is fixedly screwed with the body shell (15) and is fixed on the left end of the body shell (15); the body shell (15) is fixed between the front end cover (12) and the rear bearing seat (16); The motor stator (31) is sleeved on the outer surface of the motor rotor (32), and the motor stator (31) is fixed in the body shell (15).
2. A new core running machine electrical guide sleeve according to claim 1, characterized in that, The front bearing (22) is two angular contact ball bearings.
3. A new type of core running machine electrical guide sleeve according to claim 1, characterized in that, The rear bearing (23) is a deep groove ball bearing.
4. A new type of core running machine electrical guide sleeve according to claim 1, characterized in that, The rear cover (14) is sleeved on the outer surface of the rear nut (13).