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A retractable and controllable front and back deburring tool

A deburring, front and back technology, applied in the direction of manufacturing tools, metal processing equipment, maintenance and safety accessories, etc., can solve the problems of complex structure, poor functional reliability, and damage to the surface quality of the processed hole wall, and achieve simple operation and manufacturing The effect of low cost and simple structure

Active Publication Date: 2020-06-02
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing problems of telescopic deburring tools are as follows: (1) Some retractable tools using the spring principle, in the deburring process, when the tool passes through the hole wall, the blade will contact and squeeze the inner wall of the processing hole so that When retracted inside, the blade and the hole wall are always in contact and generate friction, which damages the surface quality of the processed hole wall; (2) Some telescopic and controllable burr tools can automatically retract the blade before the blade touches the hole wall, but Complex structure, poor functional reliability

Method used

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  • A retractable and controllable front and back deburring tool
  • A retractable and controllable front and back deburring tool
  • A retractable and controllable front and back deburring tool

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Such as figure 1 As shown, a telescopic and controllable front and back deburring tool mainly uses pressure fluid to control the extension and retraction of the blade 1 to avoid scratching the hole wall and remove the burrs on the front and back of the processed hole.

[0035] Such as figure 2 , image 3 As shown, a telescopic and controllable front and back deburring tool includes a cylindrical cutter body 4, a control pin 6, a reset device, a spring leaf 2, a blade 1 and an end cap 8. In this embodiment, the reset The device is a compression spring 5. It can be understood that in other embodiments, the reset device can also be a shrapnel, a hydraulic cylinder or a pneumatic cylinder, as long as it can produce a force opposite to the force of the pressure fluid on the control pin. The inside of the cutter body 4 is provided with a mounting groove, and the outer wall is provided with a fixing groove 4.1. The mounting groove extends axially inside the cutter body 4 an...

Embodiment 2

[0051] Figure 6-Figure 8 As another embodiment, it is shown as follows, that is, a telescopic and controllable front and back deburring tool includes a cutter body 4, a control pin 6, a compression spring 5, a leaf spring 2, a blade 1 and an end cap 8; the leaf spring 2 installed upside down on the fixing groove 4.1, similarly, the control pin 6 can reciprocate in the installation groove, such as Figure 7 As shown, by passing pressurized fluid to the inlet 9, under the action of pressure, the control pin 6 overcomes the thrust of the compression spring 5 and moves downward. The arm 11 swings outwards so that the blade 1 extends out of the outer peripheral surface of the cutter body 4 to perform deburring work. When the cutter passes through the machining hole, the pressurized fluid is stopped, and the control pin 6 moves upward under the action of the compression spring 5 to control The round platform at the lower end of the pin 6 is separated from the control surface 10, a...

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Abstract

The invention discloses a telescopic and controllable burr removal tool for a front surface and a back surface. The telescopic and controllable burr removal tool for the front surface and the back surface comprises a tool body, a control pin, a spring sheet and a return device, wherein the rotary radius of the tool body is less than the radius of a machined hole; the control pin is located in thetool body, and an inlet used for a pressure fluid and pushing the control pin to move downwards in the axial direction of the tool body is formed in the rear end of the tool body; the spring sheet islocated in the tool body, one end of the spring sheet is fixedly connected with the tool body, a control surface passing through the downwards-moving path of the lower end of the control pin is formedat the inner side of the other end of the spring sheet, a blade is arranged at the outer side, the tool body is provided with a blade groove used for enabling the blade to be bulged outwards to reachthe rotary radius of the tool body, and the included angle between a tangent line passing through the control surface and the lower end of the control pin, and the downwards-moving path of the lowerend of the control pin is an acute angle; and the return device is located in the tool body, and used for separating the lower end of the control pin from the control surface in the case of no entrance of the pressure fluid. According to the telescopic and controllable burr removal tool for the front surface and the back surface, the stretching and retreating of the burr removal blade can be controlled by virtue of the pressure fluid, so that no contact between the blade and the machined hole wall is avoided, and scratches caused to the hole wall are avoided when the tool body penetrates through the hole.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a retractable and controllable front and back deburring tool for deburring the front and back of holes. Background technique [0002] At present, in the field of mechanical processing, after the holes are machined on the workpiece, burrs are often generated at the entrance and exit of the holes, and deburring tools are generally required to remove them. Among them, because the exit burr is on the back side, the accessibility of tools is poor, and it is difficult to remove it. Usually, manual scraping is required on the back side. In order to remove the burrs at the hole outlet from the front of the workpiece, some inventions have been disclosed, including some retractable special tools for deburring. The existing problems of telescopic deburring tools are as follows: (1) Some retractable tools using the spring principle, in the deburring process, when the tool passes through...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23D79/00B23Q11/10
CPCB23D79/00B23Q11/1023
Inventor 康仁科董志刚杨国林朱祥龙鲍岩
Owner DALIAN UNIV OF TECH