Rotary table clamping device and its clamping method

A technology of rotary table and clamping device, which is applied in the direction of manufacturing tools, metal processing equipment, metal processing machinery parts, etc., can solve the problems of lower production efficiency, inconcentricity, low work efficiency, etc., achieve low manufacturing cost and improve processing Efficiency, the effect of saving production costs

Inactive Publication Date: 2016-02-10
SANY GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two clamping methods use the same basic principle. Since the distance between the working surfaces is very small and the clamping surface is a circular arc surface, it is very difficult to install and debug, and there is a slight deviation. During the rotation of the worktable, The ring gear or table flange will collide with the clamping device, which will affect the normal operation of the machine tool and reduce production efficiency
In addition, there are T-type pallet tension type and steel ball rod locking type. The T-type pallet tension type clamping mechanism adopts four-cone positioning support or center support. The clamping force and the support point of the work surface are often If it cannot be concentric, it will cause additional deformation of the table under the action of clamping force, which will directly affect the precision of the table of the rotary table, and then affect the machining accuracy of the machine tool
Although the steel ball rod locking type realizes the clamping of the workbench, the clamping force is relatively small
At the same time, the operation is cumbersome, the labor intensity is high, the installation is inconvenient, the maintenance is difficult, the work efficiency is low, the reliability is poor, etc.
[0004] refer to figure 1 In the prior art shown, the upper end of the clamping body 45 is used to clamp the clamping structure 34 located in the ring gear, and the contact area is small, and because the workbench rotates, the groove in the ring gear is circular, in order to To achieve the clamping effect, the distance between the clamping structure and the groove in the ring gear is very small, so it is difficult to install and debug
If the installation is not suitable, it is likely to cause the worktable to collide with the clamping device when it is rotating, and damage the clamping device

Method used

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  • Rotary table clamping device and its clamping method
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Embodiment Construction

[0039] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. The specific embodiments described here are only used to explain the present invention, and are not used to limit the protection scope of the present invention.

[0040] refer to figure 2 The shown clamping device for a rotary table specifically includes: a clamping body 1, which has a U-shaped notch ( figure 2 not marked in), the upper and lower inner sides of the U-shaped notch are respectively provided with relatively parallel upper rail plate 7 and lower rail plate 8, and the gear 19 is located between the upper rail plate 7 and the lower rail plate 8; The upper and lower ends of the clamping body 1 are provided with a limit mechanism 5; the oil cylinder 15 is located directly below the limit mechanism 5 at the lower end of the clamping body 1, and the oil cylinder 15 has an oil chamber 23 with an open lower end. A first pipe jo...

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Abstract

The invention discloses a clamping device for a rotary table, and a clamping method thereof. The clamping device comprises a clamping body respectively provided with an upper guide rail plate and a lower guide rail plate which are oppositely arranged in parallel, limit mechanisms, an oil cylinder, a pressing plate and a piston rod, wherein a gear is positioned between the upper guide rail plate and the lower guide rail plate, and the upper and lower ends of the clamping body are provided with the limit mechanisms; the oil cylinder is positioned below the limit mechanism at the lower end of the clamping body, and is provided with an oil cavity with an opening at the lower end, and a first pipe joint and a second pipe joint are arranged at the outer side of the oil cylinder; a piston is arranged in the oil cavity, and a first oil way and a second oil way are separated by the piston; the piston is provided with a convex ring, and the lower end of the oil cylinder is provided with the pressing plate in an embedded way; and a gap is arranged between the oil cylinder and the pressing plate in the vertical direction, and the piston rod penetrates through the claming body, the limit mechanisms, the oil plate and the pressing plate. The clamping device provided by the invention has the advantages that: the structure is simple, the performance is stable, and the installation and debugging are easy; and the stability of pretightening force is effectively ensured by oil pressure, the machining efficiency of workpieces is improved to a certain extent, and the cost of production is saved.

Description

technical field [0001] The invention relates to a clamping device of a workbench, in particular to a clamping device of a rotary workbench and a clamping method thereof. Background technique [0002] my country is a country with a large demand for machine tools, and it needs to import a large number of machine tools from abroad every year, especially large and heavy machine tools. In recent years, the domestic demand for turning-milling compound machine tools has also increased day by day. Turning-milling compound machine tools integrate the functions of lathes and milling machines into one, which can meet the user's requirements for workpiece processing efficiency and processing automation to the greatest possible extent. However, the working principles of lathes and milling machines are completely different. Lathes use the table to rotate and the tool does not rotate to achieve processing; milling machines use the tool to rotate without the table to rotate. For turning an...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): B23Q1/26B23P23/02
Inventor谢卫其卢志明卢卫生
OwnerSANY GRP