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Double taper automatic centering device

A technology of automatic centering and centering device, which is applied in the direction of positioning device, clamping, support, etc., can solve the problem of low positioning accuracy and achieve the effect of maintaining stable force

Active Publication Date: 2015-10-28
成都华川电装有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a double-taper automatic centering device, which solves the problem of low positioning accuracy of the current centering lathe fixture and achieves the purpose of improving the centering accuracy

Method used

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  • Double taper automatic centering device
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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 As shown, the double taper automatic centering device of the present invention includes a clamping handle 12, which is used to be installed on a machine tool. There is a larger diameter ring on the clamping handle, and a positioning block 13 is installed on it. , On the axis of the clamping handle 12 is connected with a mandrel 1 through a fixing screw 11, the mandrel 1 is cylindrical, one end is provided with a larger diameter convex ring 2, and the other end is installed with a positioning sleeve 3, the positioning sleeve 3 can Move freely in the axial direction of the mandrel 1, a collar 9 is sleeved on the cylindrical portion 31 of the positioning sleeve 3, a limit screw 10 is installed on the cylindrical portion 31 of the positioning sleeve 3, between the positioning sleeve 3 and the collar 9 The mandrel 1 is sleeved with a first spring 14 in a compressed state. The first spring 14 is in a compressed state and can maintain the pressure on the positio...

Embodiment 2

[0024] Such as figure 2 As shown, the difference between this embodiment and the first embodiment is only: the cone portion 32 of the positioning sleeve 3 is larger and more obvious, and the cone in the first embodiment is smaller and not obvious, and the cone section 52 of the second positioning sleeve 5 The taper is larger and more obvious. The taper of the first embodiment is small and not obvious; according to the actual workpiece structure, the truncated cone 32 and truncated truncated section 52 can be used, and the truncated truncated section 32 and truncated truncated section in the same positioning device The taper of 52 can also be different, and the difference can be larger; the diameter of the positioning sleeve 3 is small, the length of the limit screw 10 is longer and passes through the cylindrical portion 31, and its two ends are used as limit points to protrude from the positioning sleeve 3. Column part 31.

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PUM

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Abstract

The invention discloses a dual taper automatic centring device. The dual taper automatic centring device comprises a central spindle, wherein one end of the central spindle is provided with a bulge loop with the diameter more than that of the central spindle, the other end of the central spindle is provided with a locating sleeve, a compressed first spring is sheathed on the central spindle between the locating sleeve and the bulge loop, the locating sleeve comprises a cylinder part and a circular truncated cone part in the axis direction, the surface of the circular truncated cone part is a conical surface, the end of the circular truncated cone part with the large diameter is connected with the central spindle with an end surface at the tail end through the cylinder part, the end of the circular truncated cone part with the small diameter is provided with a blind hole with the same coaxial line with the end, and a second conical surface centring device is installed in the blind hole. Due to the manner of centring at two conical surfaces, the direction of the chucking force applied on workpieces is increased, when the acting force between one conical surface is reduced, the acting force between the other conical surface is sure to be increased, so that the chucking force applied on the workpieces is not changed, the force applied on the workpieces is guaranteed to be stable, and the problems of eccentricity and shaking are solved.

Description

Technical field [0001] The invention relates to a positioning tool in the machining industry, in particular to a double taper automatic centering device. Background technique [0002] Lathe fixtures can be divided into centering type (mandrel type), chuck type, chuck type, angle iron type and faceplate type according to different positioning methods of the workpiece. Centering lathe fixture: On the centering lathe fixture, the workpiece is often positioned with a hole or outer circle, and the fixture adopts a centering clamping mechanism. Angle iron lathe fixture: When processing the rotating end face of the shell, support, lever, joint and other parts on the lathe, it is difficult to clamp on the general-purpose chuck due to the complicated shape of the parts, so special fixtures must be designed. The clamp of this clamp is in the shape of an angle iron, so it is called an angle iron lathe clamp. Faceplate lathe fixture: The fixture of this type of fixture is specifically call...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q3/14
Inventor 王勇
Owner 成都华川电装有限责任公司