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Bolt type twisting handle

A plug-type and plug-in technology, which is applied to turning equipment, parts of boring machine/drilling machine, accessories of toolholders, etc., can solve the problems of reducing the mechanical strength of microscopic fiber structures and affecting the cutting efficiency of crown drills, etc., to improve drilling performance , smooth chip discharge and optimized flute shape

Inactive Publication Date: 2015-07-29
SUZHOU AHNO PRECISION CUTTING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the spiral flutes of crown drills are milled by milling process. The microscopic fiber structure of the cutter body is destroyed, resulting in a great reduction in mechanical strength, which in turn affects the cutting efficiency of crown drills.

Method used

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  • Bolt type twisting handle
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Examples

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Embodiment Construction

[0024] Such as figure 1 As shown, the bolt-type twist handle includes a handle body 1, a bolt 3 and a fastening screw 4. The handle body 1 has a T-shaped structure, including a head on the left and a tail on the right, as shown in figure 2 , the tail is a square prism structure, which can be placed on the square tool holder of the lathe like a turning tool; the head is provided with a round hole 2 for installing the drill body along the front and rear directions, so that the drill body can be inserted into the round hole when working 2. The head is provided with a pin hole 6 for installing the latch 3 along the up and down direction, such as Figure 4 , the pin hole intersects with the round hole, and the left side of the head is provided with threaded holes 5 for installing fastening screws 4 from left to right, such as image 3 , the threaded hole intersects with the pin hole for fastening the bolt 3.

[0025] Wherein, there are two pin holes 6, one upper and lower respe...

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Abstract

The invention relates to a bolt type twisting handle, which comprises a handle body, bolts and fastening screws, wherein the handle body is of a T-shaped structure, and comprises a left head and a right tail, the tail is of a quadrangular prism structure, the head is provided with a round hole for the mounting of a bit body along the longitudinal direction, the head is provided with a bolt hole for the mounting of the bolts along the vertical direction, the bolt hole is communicated with the round hole, the left side of the head is provided with threaded holes for the mounting of the fastening screws from the left to the right, and the threaded holes are communicated with the bolt holes. The bolt type twisting handle can be applied to ordinary lathes, and by means of a transmission mechanism of a machine tool, the bolt type twisting handle can implement the twisting of constant lead; the helical chip groove of the body of a crown bit can be obtained by twisting, an optimized groove design can be achieved with only a small amount of grinding, and the bolt type twisting handle has the advantages of high mechanical strength, high cutting efficiency and the like, and is particularly suitable for the machining of crown bit bodies with helical internal cooling holes.

Description

technical field [0001] The invention relates to a bolt-type twist handle, which belongs to the technical field of high-speed and high-efficiency cutting tools. Background technique [0002] The crown drill bit is a combined drill bit whose head is made of cemented carbide or other high-performance materials, and the cutter body is made of alloy steel. It has the advantages of low cost of use and large processing range. [0003] At present, most of the helical flutes of crown drills are milled by milling process. The microscopic fiber structure of the cutter body is destroyed, resulting in a great reduction in mechanical strength, which in turn affects the cutting efficiency of crown drills. Contents of the invention [0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a latch type twist handle. [0005] The purpose of the present invention is achieved through the following technical solutions: [0006] The bolt-type t...

Claims

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Application Information

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IPC IPC(8): B23B25/00B23B47/00
CPCB23B25/00B23B47/00
Inventor 刘伟蒋长青仲益张建国
Owner SUZHOU AHNO PRECISION CUTTING TECH CO LTD
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