Enhanced flange live center

By setting a flange ring and a reinforcing ring on the live center and connecting it to the machine tool tailstock, the problems of live center deflection and rotational stability are solved, the machining accuracy and stability are improved, and disassembly is facilitated.

CN224309630UActive Publication Date: 2026-06-02HENAN LIVE TOP MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN LIVE TOP MASCH CO LTD
Filing Date
2025-06-17
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The deflection and rotational stability of the live tip affect machining accuracy, and existing technologies are unable to effectively solve this problem.

Method used

A flange ring and a reinforcing ring are installed on the live center as reinforcement components, which are connected to the machine tool tailstock by fasteners to transfer the load, reduce deflection and enhance stability.

Benefits of technology

It improves the accuracy and stability of the live center during rotation, enhances the stability of the connection, and facilitates disassembly.

✦ Generated by Eureka AI based on patent content.

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Abstract

An enhanced flanged live center includes a live center housing and a reinforcing member. The live center housing includes a front bearing cavity and a rear tapered shank for insertion into a tapered hole in a machine tool tailstock. The reinforcing member includes a flange ring and a reinforcing ring. The flange ring is fixed to the outer circumferential surface of the front bearing cavity. The reinforcing ring is C-shaped, and its two ends are connected by a second fastener, allowing the reinforcing ring to grip the outside of the machine tool tailstock. The flange ring and the reinforcing ring are connected by a first fastener, allowing the load borne by the front bearing cavity to be transferred to the machine tool tailstock through the reinforcing member. The enhanced flanged live center, with its reinforcing member for connecting to the machine tool tailstock, reduces the deflection of the live center and enhances its stability, thus improving the accuracy of the live center during rotation.
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Description

Technical Field

[0001] This utility model relates to the field of live center technology, specifically an enhanced flange live center. Background Technology

[0002] A live center, also known as a slewing center, is a machine tool component used in machining to support the workpiece. The live center contains rolling or sliding bearings, allowing its tip to rotate synchronously with the workpiece. This structural design effectively reduces frictional resistance between the workpiece and the center, preventing excessive heat generated by high-speed rotation from affecting machining accuracy.

[0003] The live center includes a front bearing cavity and a rear tapered shank. The front bearing cavity houses the bearing and the center part, while the rear tapered shank is connected to the telescopic sleeve of the machine tool tailstock. Since the live center only contacts the workpiece directly through its center part, the center part forms a cantilever structure with the machine tool tailstock. This structure has a certain degree of deflection, which will affect the stability and accuracy of the center part's rotation during the workpiece support process. Utility Model Content

[0004] The purpose of this invention is to propose an enhanced flange live center, which has a reinforcing member on the live center for connecting to the machine tool tailstock, thereby reducing the deflection of the live center and enhancing its stability, which is beneficial to improving the accuracy of the live center during rotation.

[0005] The technical solution adopted by this utility model is: an enhanced flange live center, including a live center shell and a reinforcing member; the live center shell includes a front bearing cavity and a rear tapered shank for insertion into the tapered hole of the machine tool tailstock;

[0006] The reinforcing components include flange rings and reinforcing rings;

[0007] The flange ring is fixed to the outer circumferential surface of the front bearing cavity;

[0008] The reinforcing ring is C-shaped, and its two ends are connected by a second fastener, so that the reinforcing ring can be tightly held on the outside of the machine tool tailstock.

[0009] The flange ring and the reinforcing ring are connected by a first fastener, so that the load borne by the front bearing cavity is transferred to the machine tool tailstock through the reinforcing member.

[0010] As a preferred embodiment, the flange ring is integrally formed with the front bearing cavity.

[0011] As a preferred embodiment, the reinforcing ring is an elastic ring.

[0012] As a preferred embodiment, one end of the reinforcing ring is provided with a positioning pin, and the other end is provided with a positioning hole that cooperates with the positioning pin.

[0013] As a preferred embodiment, the reinforcing ring portion covers the outer circumferential surface of the front bearing cavity.

[0014] As a preferred embodiment, the reinforcing ring is provided with a stepped groove, and the end of the front bearing cavity near the reinforcing ring extends into the stepped groove.

[0015] As a preferred embodiment, the first fastener is a first bolt, and the flange ring has first threaded holes distributed along its circumference. The reinforcing ring is provided with first open holes that correspond one-to-one with the first threaded holes. The first bolt passes through the first open hole and is threadedly connected to the corresponding first threaded hole.

[0016] As a preferred embodiment, the second fastener is a second bolt, one end of the reinforcing ring is provided with a second threaded hole, and the other end of the reinforcing ring is provided with a second open hole corresponding to the second threaded hole. The second bolt passes through the second open hole and is threadedly connected to the corresponding second threaded hole.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model provides a reinforcing member on the live center for connecting to the machine tool tailstock, so that the load borne by the front bearing cavity is transferred to the machine tool tailstock through the reinforcing member, thereby reducing the deflection of the live center and enhancing its stability, which is beneficial to improving the accuracy of the live center during rotation.

[0019] 2. The reinforcing component consists of a flange ring and a reinforcing ring, which provides a stable connection and facilitates disassembly. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0022] Figure 2 This is an installation diagram of the present invention;

[0023] Figure 3 This is a partial schematic diagram of the present invention;

[0024] Figure 4 This is a partial cross-sectional view of the reinforcing ring in this utility model;

[0025] Figure 5 This is a partial longitudinal section diagram of the reinforcing ring in this utility model;

[0026] Figure 6 This is a schematic cross-sectional view of the reinforcing ring in this utility model.

[0027] Reference numerals: 1. Front bearing cavity; 2. Rear tapered shank body; 3. Flange ring; 301. First threaded hole; 4. Reinforcing ring; 401. Locating pin; 402. Locating hole; 403. Step groove; 404. First smooth hole; 405. Second threaded hole; 406. Second smooth hole; 5. Machine tool tailstock; 6. First bolt; 7. First bolt. Detailed Implementation

[0028] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0029] It should be noted that, unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "a," "an," or "the," etc., used in this utility model patent application specification and claims do not express a quantity limitation, but rather indicate the presence of at least one; the terms "first," "second," and "third," as used herein, should not be considered as a limitation on the order of components, but are merely for distinguishing different components; the terms "comprising" or "including," etc., indicate that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects having the same function.

[0030] To more clearly describe the specific structural composition of this reinforced flange live center, in conjunction with the attached... Figure 1-6 This embodiment is described as follows:

[0031] like Figure 1-3 As shown, an enhanced flange live center includes a live center housing and a reinforcing member. The live center housing includes a front bearing cavity 1 and a rear tapered shank 2 for insertion into a tapered hole in a machine tool tailstock 5. The reinforcing member includes a flange ring 3 and a reinforcing ring 4. The flange ring 3 is fixed to the outer circumferential surface of the front bearing cavity 1. The reinforcing ring 4 is C-shaped, and its two ends are connected by a second fastener, so that the reinforcing ring 4 can be tightly held on the outside of the machine tool tailstock 5. The flange ring 3 and the reinforcing ring 4 are connected by a first fastener, so that the load borne by the front bearing cavity 1 is transferred to the machine tool tailstock 5 through the reinforcing member.

[0032] During use, insert the rear taper shank 2 into the sleeve of the machine tool tailstock 5, then clamp the reinforcing ring 4 on the outside of the rear taper shank 2, and tighten the flange ring 3 and reinforcing ring 4 with the first fastener and the reinforcing ring 4 with the second fastener.

[0033] In the above embodiments, the flange ring 3 can be integrally formed with the front bearing cavity 1, which helps to ensure stability and structural strength.

[0034] In the above embodiments, the reinforcing ring 4 can be an elastic ring.

[0035] See Figure 5 To ensure that the reinforcing ring 4 is tightened quickly, a positioning pin 401 is provided at one end of the reinforcing ring 4, and a positioning hole 402 that mates with the positioning pin 401 is provided at the other end. Before installing the second fastener, the positioning pin 401 is inserted into the positioning hole 402 to make the two ends of the reinforcing ring 4 aligned and flat, and then the second fastener can be installed quickly.

[0036] See Figure 1 and Figure 2 To ensure connection strength, the reinforcing ring 4 can be made to cover the outer circumferential surface of the front bearing cavity 1.

[0037] For details, please refer to Figure 6 The reinforcing ring 4 is provided with a stepped groove 403, and the end of the front bearing cavity 1 near the reinforcing ring 4 extends into the stepped groove 403.

[0038] See Figures 3-6 In the above embodiments, the fastener is a bolt, specifically:

[0039] The first fastener is the first bolt 6. The flange ring 3 has first threaded holes 301 distributed along its circumference. The reinforcing ring 4 has first smooth holes 404 that correspond one-to-one with the first threaded holes 301. The first bolt 6 passes through the first smooth holes 404 and is threadedly connected to the corresponding first threaded holes 301.

[0040] The second fastener is the second bolt 7. One end of the reinforcing ring 4 is provided with a second threaded hole 405, and the other end of the reinforcing ring 4 is provided with a second smooth hole 406 corresponding to the second threaded hole 405. The second bolt 7 passes through the second smooth hole 406 and is threadedly connected to the corresponding second threaded hole 405.

[0041] The parts not described in detail in the above embodiments are existing technologies.

[0042] It should be noted that although the present invention has been described through the above embodiments, there may be other various embodiments of the present invention. Without departing from the spirit and scope of the present invention, those skilled in the art can obviously make various corresponding changes and modifications to the present invention, but all such changes and modifications should fall within the scope of protection of the appended claims and their equivalents.

Claims

1. A reinforced flange live center, characterized in that: Includes a live-top shell and reinforcement components; The live center housing includes a front bearing cavity (1) and a rear tapered shank (2) for insertion into the tapered hole of the machine tool tailstock (5); The reinforcing components include a flange ring (3) and a reinforcing ring (4); The flange ring (3) is fixed on the outer circumferential surface of the front bearing cavity (1); The reinforcing ring (4) is C-shaped, and the two ends of the reinforcing ring (4) are connected by a second fastener so that the reinforcing ring (4) can hug the outside of the machine tool tailstock (5); The flange ring (3) and the reinforcing ring (4) are connected by a first fastener, so that the load borne by the front bearing cavity (1) is transmitted to the machine tool tailstock (5) through the reinforcing member.

2. The enhanced flange live center according to claim 1, characterized in that: The flange ring (3) is integrally formed with the front bearing cavity (1).

3. The enhanced flange live center according to claim 1, characterized in that: The reinforcing ring (4) is an elastic ring.

4. The enhanced flange live center according to claim 1, characterized in that: One end of the reinforcing ring (4) is provided with a positioning pin (401), and the other end is provided with a positioning hole (402) that cooperates with the positioning pin (401).

5. The enhanced flange live center according to claim 1, characterized in that: The reinforcing ring (4) partially covers the outer circumferential surface of the front bearing cavity (1).

6. The enhanced flange live center according to claim 1, characterized in that: The reinforcing ring (4) is provided with a stepped groove (403), and the end of the front bearing cavity (1) near the reinforcing ring (4) extends into the stepped groove (403).

7. The enhanced flange live center according to claim 1, characterized in that: The first fastener is the first bolt (6). The flange ring (3) has first threaded holes (301) distributed along its circumference. The reinforcing ring (4) has first open holes (404) corresponding to the first threaded holes (301). The first bolt (6) passes through the first open hole (404) and is threadedly connected to the corresponding first threaded hole (301).

8. The enhanced flange live center according to claim 1, characterized in that: The second fastener is the second bolt (7). One end of the reinforcing ring (4) is provided with a second threaded hole (405), and the other end of the reinforcing ring (4) is provided with a second smooth hole (406) corresponding to the second threaded hole (405). The second bolt (7) passes through the second smooth hole (406) and is threadedly connected to the corresponding second threaded hole (405).