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Reverse boring cutter

A technology of back-boring cutter and cutter body, which is applied in the direction of boring head, tool holder, etc., can solve the problems of affecting the efficiency of processing, cumbersome processing preparation work, and affecting the processing accuracy of inner wall step holes, so as to improve processing efficiency and space utilization Efficiency increase, anti-rotation effect and anti-rotation torque optimization effect

Active Publication Date: 2010-10-06
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the above-mentioned back boring cutter, the machining preparation work is very cumbersome, which affects the efficiency of machining, and the frequent disassembly and installation of the cutter body will affect the machining accuracy of the inner wall step hole

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The back boring tool of the present invention is as figure 2 , 3 , Shown in 4, including the cutter bar 1 and the cutter body 2, the cutter body 2 is arranged on the processing side of the cutter bar 1. Knife bar 1 is made of knife bar body 3 and the end block 12 that is fixedly connected at the front end of knife bar body 3, and knife bar body is as Figure 6 , 7 As shown, end blocks such as Figure 8 , 9 As shown, the rear end of the tool body 3 is provided with a flange 5 for connecting with the motor and a cavity 6 for accommodating the inertial drive mechanism, and a gap 4 is opened at the front end, and the gap 4 is formed together with the inner wall of the end block for accommodating The slit 7 of the cutter body 2; the lower side of the cutter body 3 is provided with a long hole 8 connecting the cavity 6 and the gap 4, and the end block 12 is provided with a shaft hole 9 corresponding to the long hole 8. Slotted hole 8 front and back respectively is inser...

Embodiment 2

[0040] The structure of the anti-boring tool of this embodiment is basically the same as that of Embodiment 1, the difference is that this embodiment uses a bidirectional drive cam to replace the unidirectional drive cam in Embodiment 1—the fan-shaped cam 18. The so-called bidirectional drive cam can drive telescopic The cam of the two-way (telescopic) movement of the rod, the two-way driving cam of the present embodiment adopts the following Figure 14 As shown in the cylindrical cam 30, the cylindrical surface of the cylindrical cam 30 is provided with a curved groove 32, and the rear end of the telescopic rod 11 is provided with a crank arm 31 that matches the curved groove 32, and the end of the crank arm 31 is provided with a roller 33 .

[0041] When the back-boring tool of this embodiment is working, the rotation of the cylindrical cam drives the reciprocating movement of the telescopic rod, and no return spring is needed to provide the reset power of the telescopic rod...

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Abstract

The invention discloses a reverse boring cutter which comprises a cutter rod and a cutter body, wherein the cutter body is arranged at the processing side of the cutter rod; a cutter groove for accommodating and recovering the cutter body is arranged in the peripheral surface of the cutter rod; the cutter body is assembled in the cutter groove in a rotating way; a rotating shaft axis of the cutter body and a cutter rod axis are parallel and are deviated; a rotation stopping mechanism is arranged between the cutter body and the cutter rod and comprises clamping grooves which are respectively arranged on the cutter body and the cutter rod and wedge blocks which are in sliding fit with the clamping grooves; the wedge blocks are matched and connected with an inertial drive mechanism by a telescopic rod which is in transmission connection with the wedge blocks, and a resetting mechanism is arranged on the telescopic rod; the inertial drive mechanism comprises a single-path drive cam which is in drive matching with the telescopic rod and an eccentric inertial block which is fixedly connected with the cam; and a drive wedge block of the eccentric inertial block enables the inertial deviating trend of the cutter body for separating a rotation stopping state to be the same with the inertial recovering trend of the cutter body. The reverse boring cutter realizes the recovery and opening of the cutter body by carrying out rotation in the reverse direction and the positive direction on the reverse boring cutter and is convenient for use.

Description

technical field [0001] The invention relates to a counter-boring cutter, which belongs to the technical field of mechanical processing equipment. Background technique [0002] In the field of boring machine processing technology, for some workpieces with stepped holes on the inner wall, it is necessary to use a back boring tool for processing. At present, the traditional back boring tool has a simple structure, such as figure 1 As shown, a cutter bar 43 is included, and a cutter body 41 protruding from the peripheral surface of the cutter bar is provided on the processing side of the cutter bar 43 , and a cutter head 44 is fixedly connected to the end of the cutter body 41 . During processing, the cutter body 41 is first removed, and then the cutter bar 43 is inserted into the wall hole of the workpiece 40, and then the cutter body 41 is installed on the cutter bar 43, and the cutter head is driven to process on the inner wall of the workpiece by the rotation of the cutter ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B29/03B23B29/12
Inventor 张子明裴韶光苗沛淋刘建权
Owner STATE GRID CORP OF CHINA
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