Lengthened roller type lathe center frame

A technology of center frame and roller, which is applied in the field of center frame of extended roller type lathe, which can solve the problems of small clamping range, difficulty in installation, and large size, and achieve the effect of increasing clamping range, increasing contact area and reducing adjustment

Pending Publication Date: 2021-02-05
宁波市精恒凯翔机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, due to the large size of the traditional steady frame and relatively small clamping...

Method used

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  • Lengthened roller type lathe center frame
  • Lengthened roller type lathe center frame
  • Lengthened roller type lathe center frame

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0023] Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] Figures 1 to 8 It is the schematic diagram of construction and wall pile of the present invention.

[0025] The reference signs are: return plate H, obliquely long chute H1, bolt L, mounting seat 1, mounting cavity 1a, notch 1b, guide slide 1c, main base body 11, cover plate 12, support ear 13, rotating shaft Hole 13a, limit block 14, oil cylinder 2, central arm 21, support arm 3, rotating shaft 31, pressure bearing wheel 32, pressure bearing wheel shaft 33, roller 4, extended roller 41, extended roller support 5, assembly cavity 5a, safety Valve 6, wedge-shaped plate 7, thrust slope 7a, support fixing frame 8, adjustment seat 9.

[0026] Such as Figure 1 to Figure 8 As shown, the present invention provides a kind of center frame of extended roller type lathe, and this center frame adopts hydraulic power, and it comprises a flat rec...

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PUM

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Abstract

The invention discloses a lengthened roller type lathe center frame. The lengthened roller type lathe center frame comprises a center arm arranged in an installation base and two supporting arms hinged to the installation base, and the front end of the center arm and the front ends of the supporting arms are each provided with a roller; the rollers are lengthened rollers, lengthened roller supports are installed at the front end of the center arm and the front ends of the supporting arms, and the lengthened rollers are installed in the lengthened roller supports; the central arm is a cylinderbody of an oil cylinder hidden in the installation base, a safety valve is installed on the rear end surface of the installation base, and a piston rod of the oil cylinder is connected with the safetyvalve; and the two supporting arms are symmetrically arranged, pressure-bearing wheels are installed at the rear ends of the supporting arms, wedge-shaped plates are installed on the upper side faceand the lower side face of the center arm, thrust slopes in rolling contact with the pressure-bearing wheels are formed on the wedge-shaped plates, the center arm pushes the pressure-bearing wheels through the thrust slopes to drive the two supporting arms to move synchronously to be closed while advancing under the hydraulic action, so that a workpiece is controlled in a circle formed by supporting points of the three rollers, and return plates used for pulling the supporting arms to be opened and reset are installed on the wedge-shaped plates.

Description

technical field [0001] The invention relates to the technical field of mechanical processing equipment, in particular to a center frame applied to a lathe, in particular to an extended roller type center frame of a lathe. Background technique [0002] The center frame is an auxiliary support device used in the turning or grinding process of slender shaft parts, which makes it possible for high-precision machining of ultra-thin optical shafts, precision screw rods, ball screws and other parts. In the prior art, the support wheel used to support the workpiece on the lathe steady frame is generally a very short roller, which is similar to a point support, so it is troublesome to adjust the center of the workpiece clamped by the long axis. Furthermore, due to the large size of the traditional steady frame and relatively small clamping range, it is also difficult to install it on a machine tool with a small space and a large clamping range. Contents of the invention [0003] T...

Claims

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Application Information

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IPC IPC(8): B23Q1/76
CPCB23Q1/763
Inventor 李龙江
Owner 宁波市精恒凯翔机械有限公司
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