CN2696754Y

CN2696754Y - Hand operated hole cutter

Info

Publication number: CN2696754Y
Application number: CN 200420010415
Authority: CN
Inventors: 龚德先; 涂明武; 代永朝; 戴宏伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-18
Filing date: 2004-03-18
Publication date: 2005-05-04
Anticipated expiration: 2014-03-18

Abstract

The utility model discloses a hand operated hole cutter, which comprises a circle center positioning disk and a blade head, and the circle center is uniformly provided with screw holes. The utility model is characterized in that the circle center positioning disk is center-vertically upwardly connected with a fixing axis whose center part is rotating sheathed with a horizontal wiper, and the lower part of the fixing axis is sheathed with a spring for supporting the wiper while the upper part of the fixing axis is fixed with a crank. The wiper is sliding connected with a knife carriage whose lower part is provided with a blade head mounting hole and a hold down screw, the upper part of the knife carriage is provided with a turn knob for locking knife carriage, and the outer end of the wiper is provided with a turning handle. The utility model adopts the principle of fixed point circle drawing, the blade tools are designed on the circle moving trace in order to cut circle on the aluminum alloy and electron alloys aircraft skin, which can cut broken holes into regular circular holes. With changing different blade heads, the utility model can also cut circular holes on other material boards, which has the advantages of simple structure, flexible operation, rapid holing speed, accurate size and adjustable feeding amount according to the requirement.

Description

Manual circular hole cutter

Technical field:

The utility model belongs to cutting tool, is particularly suitable for cutting circular hole use on aircraft skin.

Background technology:

At present, the bigger circular hole of cutting has a kind of pneumatic dish type cutter on the aircraft skin of aluminium alloy, magnesium alloy, and it includes handle of a knife and cutterhead, is contained on the air drill, is used as power by gases at high pressure during work, can not cut bigger circular hole, and depends on pneumatic.With the bigger circular hole of manual cutting, all be on the plate face, to mark round track earlier, to process according to track with scroll saw, also available drill bit gets out preliminary circular hole according to track, polishes with file or emery wheel again, and the speed of its processing is slow, low precision, also relatively requires great effort.

Summary of the invention:

The purpose of this utility model is that a kind of using manually on aluminium alloy, magnesium alloy aircraft skin of design cut than big hole, and speed is fast, the manual circular hole cutter that precision is high.

The technical solution of the utility model is finished as follows, it includes center of circle positioning disk and cutter head, be evenly equipped with screw on the positioning disk of the center of circle, it is characterized in that: center of circle positioning disk central vertical upwards is connected with fixed axis, socket one horizontal cursor slide is rotated at the fixed axis middle part, the fixed axis bottom is with the spring that supports cursor slide, fixed axis top is fixed with handle, on cursor slide, slidely connect knife rest, there is the cutter head installing hole knife rest bottom and compresses spiral shell orders, knife rest top is equipped with the knob of locking knife rest, and there is a turning handle cursor slide outer end.The utility model adopts fixed point to draw the principle of circle, and Tool Design on the circular motion track, is justified cutting to the aircraft skin of aluminium alloy, magnesium alloy, holes can be cut into the circular hole of rule.The utility model is changed different cutter heads also can process circular hole on the plate face of other material.That this instrument has is simple in structure, flexible operation, perforate speed are fast, size accurately, the depth of cut advantage such as can adjust on request.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.Among the figure, 1. positioning disk, 2. spring, 3. fixed axis, 4. handle, 5. cursor slide, 6. knob, 7. turning handle, 8. knife rest, 9. housing screw, 10. cutter head.

The specific embodiment:

This cutting tool adopts fixed point to draw the principle of circle, and Tool Design on the circular motion track, is carried out the circular hole cutting to aircraft skin.Its specific design scheme is, at center of circle positioning disk 1 central vertical that is evenly equipped with screw affixed the fixed axis 3 that make progress, the middle part of fixed axis is rotatably connected to horizontal cursor slide 5, the bottom of fixed axis is with the spring 2 of a support cursor slide, handle 4 is arranged at fixed axis top, slidely connects knife rest 8 on cursor slide, and there is the installing hole of cutter head 10 the knife rest bottom and compresses spiral shell orders 9, knife rest top is equipped with the knob 6 of locking knife rest, and there is vertically upward a turning handle 7 the cursor slide outer end.In order accurately to grasp the size of cutting circular hole, on cursor slide, be carved with the length mark of radius.During the processing circular hole, plate face according to unlike material, different cutter heads is installed on knife rest, positioning disk is screwed on the plate face at the circular hole center that will cut, adjusts the circle hole radius that will cut, knife rest is locked on the cursor slide with knob according to the scale on the cursor slide, proficiency handrail handle, one hand-held turning handle rotates, and can cut, and the depth of cut can be adjusted as requested.

Claims

1, manual circular hole cutter, it includes center of circle positioning disk and cutter head, be evenly equipped with screw on the positioning disk of the center of circle, it is characterized in that: center of circle positioning disk central vertical upwards is connected with fixed axis, and socket one horizontal cursor slide is rotated at the fixed axis middle part, the fixed axis bottom is with the spring that supports cursor slide, fixed axis top is fixed with handle, slidely connects knife rest on cursor slide, and there is the cutter head installing hole knife rest bottom and compresses spiral shell orders, knife rest top is equipped with the knob of locking knife rest, and there is a turning handle cursor slide outer end.

2, circular hole cutter according to claim 1 is characterized in that: be provided with length mark on cursor slide.