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Drill hole depth identification through ray

A technology for drilling tools and drilling depth, which is applied in the direction of drilling/drilling equipment, manufacturing tools, portable mobile devices, etc., and can solve problems such as surface damage

Inactive Publication Date: 2008-12-31
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when drilling holes in workpieces with sensitive surfaces, this mechanical depth stop can cause damage to the surface if the front end hits the surface when the desired drilling depth is reached
Furthermore, the length of this depth stop is not always sufficient when using long drilling tools, and it is usually arranged on the left side of the drilling tool, so that its front end is close to the preset drilling hole. Depth, while good for right-handers, is not for left-handers as the view is blocked by the drill chuck of the drilling tool

Method used

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Embodiment Construction

[0024] The drilling machine 2 shown in the accompanying drawings mainly consists of a housing 4 with a handle 6, a drill chuck 8 protruding from the housing 4 for clamping a drill 10 or other drilling tools, and a The device 12 that is mounted detachably on the surface of the housing 4 consists of a contactless determination of a borehole 18 to be drilled on a wall 16 or other flat surface 14 of a workpiece by means of a drilling machine 2 and a drill bit 10 The preset drilling depth T is reached in the middle (Fig. 3).

[0025] Like most drilling machines commonly seen in the market, an on / off switch 20 is provided on the handle 6 of the housing 4, and an on / off switch 20 integrated in the on / off switch 20 is used to adjust the drill chuck. An adjustment wheel 22 for the rotational speed of the disc 8 , a determination button 24 for continuous operation of the drilling machine 2 , and a switch 26 for changing the direction of rotation of the drill chuck 8 . The housing 4 sur...

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Abstract

Device for detecting the attainment of a predefined drill hole depth of a hole being drilled with a drilling unit. The device comprises an arrangement (44, 46) for emitting two convergent light beams (52, 54) from a drill (2) towards the surface (14) of material (16) being drilled. By evaluation of the position of two light spots generated on the material surface, the attainment of a preset drilling depth can be detected. An independent claim is made for a drilling method in which a predefined drilling depth is defined and attainment of the depth is indicated when angled light beams, emitted from a unit mounted on a drill, meet.

Description

technical field [0001] The invention relates to a device for detecting or determining that a predetermined drilling depth has been reached in a drilling hole drilled from a workpiece surface into a workpiece by means of a drilling tool of a drilling tool. The invention also relates to a drilling tool equipped with such a device, in particular an electrically driven hand-held drilling tool such as a drilling machine, percussion drilling machine or chisel drilling machine. Furthermore, the invention relates to a drilling method, in which a drill hole is drilled from the workpiece surface into the workpiece by means of a drill tool of a drill tool and a predetermined drilling depth from the workpiece surface is determined to be reached. Background technique [0002] Devices of the type mentioned at the outset are already known in the field of hand-held drilling tools, by means of which the attainment of a preset drilling depth can be mechanically determined. This known device ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B49/00
CPCB23B49/00B23B2260/092B25F5/003B25H1/0092
Inventor 维尔纳·许泽
Owner ROBERT BOSCH GMBH
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