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Borer having automatic position recoganition function

A technology for drilling machines and drilling tools, applied in portable drilling machines, drilling/drilling equipment, power metering, etc., can solve problems such as increased rotational resistance, spalling, and increased energy consumption during drilling

Inactive Publication Date: 2009-01-28
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to an increase in the rotational resistance acting on the drilling tool during drilling, thereby increasing the energy consumption of the drilling process
In unfavorable circumstances, it can even cause the drilling tool to stall or get stuck in the drilling hole, which can cause the drilling machine to turn and the handle to be disengaged from it without the drilling machine operator paying attention, which often leads to injury to the operator
[0004] On the other hand, when such a drilling machine is used to drill a hole through a wall or other workpiece made of cement or masonry, when the drilling tool comes out of the wall or workpiece, it tends to cause a larger piece of debris around the drilled hole. Spalling of cement or masonry, which is usually undesirable

Method used

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  • Borer having automatic position recoganition function
  • Borer having automatic position recoganition function
  • Borer having automatic position recoganition function

Examples

Experimental program
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Effect test

Embodiment Construction

[0017] The percussion drill 2 shown in the accompanying drawings is mainly composed of a housing 4 with a handle 6 and a drill sleeve 8 protruding from the housing 4, which is used to clamp a drill or another Drilling tool 10.

[0018] As common percussion drills on the market, the housing 4 is provided with on the handle 6: an on / off switch 12; A regulating wheel 14 of the rotating speed; a locking button 16 for the continuous operation of the drilling rig and a switch 18 for changing the direction of the drill ferrule 8 . A slide switch 20 is provided on the upper side of the housing 4 for switching from pure drilling operation to percussion drilling operation and vice versa. The housing 4 surrounds a drive motor and a gear (not shown) and is provided with ventilation slots 22 on its sides and top for ventilation of the motor.

[0019] In addition to the motor and transmission, the housing also encloses: an inclination sensor 24 for sensing the orientation of the drill axi...

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PUM

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Abstract

The invention relates to a drilling appliance (2), in particular a hand-held percussion drilling machine or a hand-held drilling hammer with electric drive motor. It is provided that the drilling appliance (2) has a sensor (24) for detecting the orientation of a drilling axis (B) and a sensor system (26, 28 fig 5) for detecting at least one drilling parameter, and also a device (52, fig 5) for evaluating output signals of the sensor (24) and the sensor system (26, 28) and for altering a movement of a drilling tool (10) of the drilling appliance (2) in response to the evaluation of the output signals. The drilling parameter may be rotational speed, torque, current supplied or power consumed.

Description

technical field [0001] The invention relates to a drilling machine, in particular a hand-held percussion drill or hand-held rock drill with a drive motor. Background technique [0002] Such hand-held power tools or drilling tools in the form of hammer drills and rock drills are well known and sold in large quantities not only for professional needs but also for domestic work. Walls, cement or stone are usually drilled with the aid of such hand drills, wherein holes can be drilled both vertically and horizontally. For drilling, a drilling tool in the form of a so-called helical drill is usually used, which has a helical torsion groove running along the drilling tool, through which the cuttings drilled by the drilling tool head in the drilled hole are transported Or drilling powder discharge. [0003] When the drilling machine is used to drill a hole vertically or obliquely downward, the drill cuttings or drilling powder drilled in the drill hole are discharged through the t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B45/16B23B45/02B25D11/00B25D17/00G01B5/24G01P15/00G01L3/00G01L5/00G01R19/00B25H1/00G01C9/26
CPCB25H1/0085B23B45/02B25D17/00B23B2260/128G01C9/26B25D2250/221
Inventor 安德烈亚斯·施特拉塞尔马库斯·洛伊佩特
Owner ROBERT BOSCH GMBH
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