CN102728896A

CN102728896A - Movable sheet trepan boring cutter

Info

Publication number: CN102728896A
Application number: CN2012101818583A
Authority: CN
Inventors: 朱小坤; 何建国
Original assignee: Jiangsu Tiangong Tools Co Ltd
Current assignee: Jiangsu Tiangong Tools Co Ltd
Priority date: 2012-06-05
Filing date: 2012-06-05
Publication date: 2012-10-17

Abstract

The invention relates to a movable sheet trepan boring cutter which comprises a taper shank and a cutter bar, wherein a movable sleeve is sheathed on the taper shank, the cutter bar is fixed on the taper shank by penetrating through the movable sleeve through a second screw, an elongated slot is milled in the cutter bar, two ends of the cutter bar are respectively provided with a first slicer and a second slicer in an inserting manner, the first slicer is fixed on one end of the cutter bar by virtue of a first screw in a screwing manner, the second slicer is fixed on the other end of the cutter bar by virtue of a third screw in a screwing manner, an elastic centre for positioning is arranged at the lower end of the taper shank, and scales are arranged on all the taper shank, the first slicer and the second slicer. The elastic centre plays a role in positioning, the elongated slot is milled in the cutter bar, regulation can be carried out according to the aperture size, the cutter bar can vertically move on the taper shank by virtue of the movable sleeve, thus processing various workpieces; and the cutter bits are arranged at two ends of the cutter bar, thus improving the working efficiency. The movable sheet trepan boring cutter has a simple structure, and is convenient to manufacture and low in cost.

Description

A kind of thin plate trepanning movable cutter

Technical field

The present invention relates to a kind of cutter, a kind of specifically thin plate trepanning movable cutter.

Background technology

Cutter is the instrument that job shop often uses, but each cutter all can only be suitable for can not workpiece on, common cutter; The processing aperture is greater than 50mm on drilling machine, and thickness is that the panel hole of 0.5～3mm is relatively more difficult, as adopting gas cutting; Plate not only is out of shape, and must clear up attached to the scum around the hole, could process; And when the processing different workpiece, need change cutter; Cumbersome, having plenty of needs circular also being difficult to of cutting to accomplish, so just needs a kind of cutter stable and that have multiple function that guarantee to cut.

Summary of the invention

In order to address the above problem, the invention provides a kind of stable cutter that guarantees to cut.

In order to achieve the above object, the present invention realizes through following technical scheme:

The present invention is a kind of thin plate trepanning movable cutter; Comprise taper shank and knife bar, on taper shank, be with movable sleeve, knife bar passes said movable sleeve through second screw and is fixed on the said taper shank; In knife bar, mill an elongated slot; Insert respectively at the two ends of knife bar and to be provided with first cutting knife and second cutting knife, first cutting knife is screwed on the end that is fixed on knife bar through first screw, and second cutting knife is screwed on the other end that is fixed on knife bar through the 3rd screw.

Further improvement of the present invention is: the lower end of taper shank is the centre with endlong movement of positioning action.

Further improvement of the present invention is: be provided with scale on taper shank, first cutting knife and second cutting knife.

The invention has the beneficial effects as follows: trepanning cutter of the present invention is made up of the taper shank that has centre with endlong movement and knife bar and cutting knife; Centre with endlong movement plays the role of positioning, and mills an elongated slot in the knife bar, can adjust according to pore size; Knife bar can move up and down on taper shank through movable sleeve; Can carry out the processing of various workpieces, the two ends of knife bar are provided with cutter head, increase work efficiency.

The present invention is simple in structure, and is easy to make, with low cost, can be used for processing sheet.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Wherein: 1-taper shank, 2-knife bar, 3-first cutting knife, 3-1-second cutter head, 4-first screw, 5-second screw, 6-centre with endlong movement, 7-elongated slot, 9-movable sleeve, 10-the 3rd screw.

The specific embodiment

In order to deepen to understanding of the present invention, will combine accompanying drawing and embodiment that the present invention is described in further detail below, this embodiment only is used to explain the present invention, protection scope of the present invention is not constituted to limit.

Shown in Fig. 1, the present invention is a kind of thin plate trepanning movable cutter, comprises taper shank 1 and knife bar 2; On said taper shank 1, be with movable sleeve 9, said knife bar 2 passes said movable sleeve 9 through second screw 5 and is fixed on the said taper shank 1, and knife bar 2 can move up and down through movable sleeve 9; The workpiece that conveniently carries out different size is processed, and in said knife bar 2, mills an elongated slot 7, inserts respectively at the two ends of said knife bar 2 to be provided with first cutting knife 3 and the second cutting knife 3-1; Two convenient processing of cutting knife; High efficiency, said first cutting knife 3 are screwed through first screw 4 on the end that is fixed on said knife bar 2, and the said second cutting knife 3-1 is screwed on the other end that is fixed on said knife bar 2 through the 3rd screw 10; The lower end of said taper shank 1 is the centre with endlong movement 6 of positioning action; Be provided with scale on said taper shank 1, said first cutting knife 3 and the said second cutting knife 3-1, be convenient for measuring, do not need to provide again survey tool.

Trepanning cutter of the present invention is made up of the taper shank that has centre with endlong movement and knife bar and cutting knife, and centre with endlong movement plays the role of positioning, and mills an elongated slot in the knife bar, can adjust according to pore size.

Claims

1. thin plate trepanning movable cutter; Comprise taper shank (1) and knife bar (2); It is characterized in that: on said taper shank (1), be with movable sleeve (9); Said knife bar (2) passes said movable sleeve (9) through second screw (5) and is fixed on the said taper shank (1), in said knife bar (2), mills an elongated slot (7), inserts respectively at the two ends of said knife bar (2) to be provided with first cutting knife (3) and second cutting knife (3-1); Said first cutting knife (3) is screwed through first screw (4) on the end that is fixed on said knife bar (2), and said second cutting knife (3-1) is screwed on the other end that is fixed on said knife bar (2) through the 3rd screw (10).

2. according to the said a kind of thin plate trepanning movable cutter of claim 1, it is characterized in that: the lower end of said taper shank (1) is the centre with endlong movement (6) of positioning action.

3. according to claim 1 or 2 said a kind of thin plate trepanning movable cutters, it is characterized in that: be provided with scale on said taper shank (1), said first cutting knife (3) and said second cutting knife (3-1).