CN104275514A

CN104275514A - Drilling cutter

Info

Publication number: CN104275514A
Application number: CN201410494134.3A
Authority: CN
Inventors: 程建华
Original assignee: Changzhou Jianhua Changsheng Tools Co Ltd
Current assignee: Changzhou Jianhua Changsheng Tools Co Ltd
Priority date: 2014-09-24
Filing date: 2014-09-24
Publication date: 2015-01-14

Abstract

The invention relates to a drilling cutter which comprises a cutter bit and a cutter handle. The cutter bit is fixedly connected with the cutter handle. A conical head is disposed at the end of the cutter bit. A spiral edge for drilling and a reamer for chambering and trimming holes are respectively disposed on the surfaces at two ends of the cutter bit. A cutter handle sleeve is disposed on the cutter handle. The cutter sleeve is connected with the cutter handle through a key which is used for radially positioning the cutter handle sleeve. A key groove is formed in the cutter handle. The key matched with the key groove is disposed on the inner wall of the cutter handle sleeve. The cutter handle sleeve and the cutter handle are fixedly connected through a fixing part. The fixing part is used for axially positioning the cutting handle sleeve. The fixing part is disposed at the end of the cutter handle. Oil ducts for lubricating the cutter bit are formed in the cutter handle sleeve. The drilling cutter is simple in structure, firm in clamping, long in service life, and the like.

Description

Drilling tool

Technical field

The present invention relates to Machining Technology field, be specifically related to a kind of drilling tool.

Background technology

Existing drilling tool is directly clamped on claw to use, and Long-Time Service can have wearing and tearing to handle of a knife, finally causes damaged, and clamping is unstable, so that scraps; When drilling tool uses, usually can produce high temperature and inevitably rub, which results in cutter head and scrap fast, cost increases greatly; After Workpiece boring, often need to change cutter and carry out repairing hole and reaming, so just considerably increase non-cutting time, reduce operating efficiency.

Summary of the invention

For above-mentioned technical problem, the invention provides a kind of structure simple, firm grip, the drilling tool of long service life.

Realize technical scheme of the present invention as follows:

Drilling tool, comprise cutter head and handle of a knife, described cutter head is fixedly connected with handle of a knife, the end of cutter head is provided with conical head, the surface at cutter head two ends is respectively equipped with spiral cutting edge for holing and for reaming and the reamer repairing hole, described handle of a knife is arranged with handle of a knife cover, handle of a knife cover is also connected by key with handle of a knife, key is used for handle of a knife to overlap radial location, handle of a knife is provided with keyway, handle of a knife cover inwall is provided with the key adapted with keyway, handle of a knife cover is connected and fixed by fixture with handle of a knife, fixture is used for handle of a knife to overlap axial location, fixture is arranged on the end of handle of a knife, handle of a knife puts the oil duct be provided with lubricating cutter head.

Described fixture comprises bolt and pad, and pad diameter is greater than the diameter of handle of a knife, and handle of a knife is provided with the screwed hole adapted to bolt, and advantage can be fixed on handle of a knife by handle of a knife cover, forms integrative-structure, with slip-off preventing.

The surface of the oil-out laminating handle of a knife of described oil duct, advantage is that the lubricating oil in oil duct can flow to cutter head along handle of a knife surface, lubricates or cool cutter head, reduces the wearing and tearing of blade, extends its physical life.

The junction of described cutter head and handle of a knife is set to pyramidal structure, and its side and horizontal angle are 30 °, and advantage is convenient to chip removal, prevents scrap from piling up and hindering this Tool in Cutting workpiece.

Have employed such scheme, conical head on cutter head is used for preferentially carrying out machining center hole to workpiece, so just serve the guide effect to cutter, eliminate the operation of the front tool setting of processing, at match-drill blade and reamer, the hole of workpiece is processed, reaming and repair hole, settle at one go, multiple operation is brought together, and greatly saves the time, simplify the operation, improve operating efficiency; The setting that handle of a knife overlaps is for the protection of the handle of a knife of cutter; in Long-Time Service; handle of a knife can not receive direct wearing and tearing; so just make greatly increase its service life; handle of a knife cover is connected by key with handle of a knife; key serves guiding and position-limiting action; coordinating fixture to be entangled firm by handle of a knife more firmly fixes on handle of a knife; add like this and only need clamp handle of a knife cover man-hour and can process, the oil duct that handle of a knife puts for heaven cooling fluid or lubricating oil, thus solves the problem of cutter head maintenance; and can add at any time; use at any time, does not cause waste, simple and convenient.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the present invention is further described.

See Fig. 1, drilling tool, comprise cutter head 1 and handle of a knife 2, described cutter head 1 is fixedly connected with handle of a knife 2, the end of cutter head 1 is provided with conical head 11, the surface at cutter head 1 two ends is respectively equipped with spiral cutting edge 12 for holing and for reaming and the reamer 13 repairing hole, described handle of a knife 2 is arranged with handle of a knife cover 3, handle of a knife cover 3 is also connected by key with handle of a knife 2, key is used for handle of a knife to overlap radial location, handle of a knife 2 is provided with keyway 21, handle of a knife overlaps 3 inwalls and is provided with the key 32 adapted with keyway 21, handle of a knife cover 3 is connected and fixed by fixture with handle of a knife 2, fixture is used for handle of a knife to overlap axial location, fixture is arranged on the end of handle of a knife, handle of a knife cover 3 is provided with and the oil duct 31 lubricating cutter head.

Described fixture comprises bolt 4 and pad 5, and pad 5 diameter is greater than the diameter of handle of a knife 2, and handle of a knife is provided with the screwed hole adapted to bolt, and advantage can be fixed on handle of a knife by handle of a knife cover, forms integrative-structure, with slip-off preventing.

The surface of the oil-out laminating handle of a knife 2 of described oil duct 31, advantage is that the lubricating oil in oil duct can flow to cutter head along handle of a knife surface, lubricates or cool cutter head, reduces the wearing and tearing of blade, extends its physical life.

Described cutter head 1 is set to pyramidal structure with the junction of handle of a knife 2, and its side and horizontal angle α are 30 °, and advantage is convenient to chip removal, prevents scrap from piling up and hindering this Tool in Cutting workpiece.

Claims

1. drilling tool, comprise cutter head and handle of a knife, it is characterized in that: described cutter head is fixedly connected with handle of a knife, the end of cutter head is provided with conical head, the surface at cutter head two ends is respectively equipped with spiral cutting edge for holing and for reaming and the reamer repairing hole, described handle of a knife is arranged with handle of a knife cover, handle of a knife cover is also connected by key with handle of a knife, key is used for handle of a knife to overlap radial location, handle of a knife is provided with keyway, handle of a knife cover inwall is provided with the key adapted with keyway, handle of a knife cover is connected and fixed by fixture with handle of a knife, fixture is used for handle of a knife to overlap axial location, fixture is arranged on the end of handle of a knife, handle of a knife puts the oil duct be provided with lubricating cutter head.

2. drilling tool according to claim 1, is characterized in that: described fixture comprises bolt and pad, and pad diameter is greater than the diameter of handle of a knife, and handle of a knife is provided with the screwed hole adapted to bolt.

3. drilling tool according to claim 1, is characterized in that: the surface of the oil-out laminating handle of a knife of described oil duct.

4. drilling tool according to claim 1, is characterized in that: the junction of described cutter head and handle of a knife is set to pyramidal structure, and its side and horizontal angle are 30 °.