CN204639250U - A kind of Double-head twist drill - Google Patents

A kind of Double-head twist drill Download PDF

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Publication number
CN204639250U
CN204639250U CN201520366283.1U CN201520366283U CN204639250U CN 204639250 U CN204639250 U CN 204639250U CN 201520366283 U CN201520366283 U CN 201520366283U CN 204639250 U CN204639250 U CN 204639250U
Authority
CN
China
Prior art keywords
drill
model
drill body
drillstock
bit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201520366283.1U
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Chinese (zh)
Inventor
陈永兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qidong Lvsi Technology Innovation Center Co Ltd
Original Assignee
Qidong Lvsi Technology Innovation Center Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qidong Lvsi Technology Innovation Center Co Ltd filed Critical Qidong Lvsi Technology Innovation Center Co Ltd
Priority to CN201520366283.1U priority Critical patent/CN204639250U/en
Application granted granted Critical
Publication of CN204639250U publication Critical patent/CN204639250U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of Double-head twist drill, comprises drillstock, drill body A and drill body B; Described drillstock both sides end face respectively has the groove that is convenient to grafting fixed drill bit body, and it has anti-slip tank; Described drill body A and drill body B is plugged on drillstock both sides respectively, it all has some cutting edges and has spiral chip area; The model of described drill body A is M8, and the model of described drill body B is M10.The utility model has the advantage of: the utility model Double-head twist drill drill body and drillstock separately, are convenient for changing drill bit, extend bit operation length; The drill body model at drillstock two ends is two kinds of conventional bit models, can adapt to most instructions for use; Bit-body face has one deck TiAlN coating, can strengthen the wearability of drill bit, improves service life.

Description

A kind of Double-head twist drill
Technical field
The utility model relates to a kind of drill bit, particularly a kind of Double-head twist drill.
Background technology
fluted drill is with the instrument of the circular hole of drilling workpiece by the rotary cutting of its relative fixed axis.Be similar to fried dough twist because of its chip pocket curl and gain the name.Helicla flute has 2 grooves, 3 grooves or more groove, but the most common with 2 grooves.Fluted drill can be clamped in manual, electronic hand
Hold on formula boring bar tool or drilling machine, milling machine, lathe and even machining center and use.Drill bit material is generally high-speed tool steel or carbide alloy.
Be mention a kind of Double-head twist drill in the utility model of 201220238225.7 in the patent No., comprise all-in-one-piece drillstock processed and drill body, drill body has spiral chip area, drill body is two, be separately positioned on the two ends of drillstock, drillstock has anti-slip tank, there is following shortcoming in the Double-head twist drill in above-mentioned patent: the Double-head twist drill after the wearing and tearing of two ends, this fluted drill will be discarded.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of Double-head twist drill, and its innovative point is: comprise drillstock, drill body A and drill body B; Described drillstock both sides end face respectively has the groove that is convenient to grafting fixed drill bit body, and it has anti-slip tank; Described drill body A and drill body B is plugged on drillstock both sides respectively, it all has some cutting edges and has spiral chip area.
Further, the model of described drill body A is M8, and the model of described drill body B is M10.
Further, there is one deck TiAlN coating on described drill body A and drill body B surface.
The utility model has the advantage of:
(1) the utility model Double-head twist drill drill body and drillstock separately, are convenient for changing drill bit, extend bit operation length;
(2) the drill body model at drillstock two ends is two kinds of conventional bit models, can adapt to most instructions for use;
(3) bit-body face has one deck TiAlN coating, can strengthen the wearability of drill bit, improves service life.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of Double-head twist drill of the utility model.
Detailed description of the invention
As shown in Figure 1, the utility model discloses a kind of Double-head twist drill, comprise drillstock 1, drill body A2 and drill body B3; Described drillstock 1 both sides end face respectively has the groove that is convenient to grafting fixed drill bit body, it has anti-slip tank 4; Described drill body A2 and drill body B3 is plugged on drillstock 1 both sides respectively, and it all has some cutting edges 6 and has spiral chip area 5, bit-body face has one deck TiAlN coating, can strengthen the wearability of drill bit, improves service life.
When drill body A2 or drill body B3 damages, only need take off the drill body on drillstock 1, be replaced by new drill body, this Double-head twist drill just can come into operation again, and does not need to purchase in addition; M8 and M10 is more common bit model, and in most drilling operation, the utilization rate of the drill bit of this two type is higher, thus use is more reasonable.
More than show and describe general principle of the present utility model and principal character.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (3)

1. a Double-head twist drill, its characteristic point is: comprise drillstock, drill body A and drill body B; Described drillstock both sides end face respectively has the groove that is convenient to grafting fixed drill bit body, and it has anti-slip tank; Described drill body A and drill body B is plugged in the groove of drillstock both sides respectively, it all has some cutting edges and has spiral chip area.
2. a kind of Double-head twist drill according to claim 1, its characteristic point is: the model of described drill body A is M8, and the model of described drill body B is M10.
3. a kind of Double-head twist drill according to claim 1, its characteristic point is: there is one deck TiAlN coating on described drill body A and drill body B surface.
CN201520366283.1U 2015-06-01 2015-06-01 A kind of Double-head twist drill Expired - Fee Related CN204639250U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520366283.1U CN204639250U (en) 2015-06-01 2015-06-01 A kind of Double-head twist drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520366283.1U CN204639250U (en) 2015-06-01 2015-06-01 A kind of Double-head twist drill

Publications (1)

Publication Number Publication Date
CN204639250U true CN204639250U (en) 2015-09-16

Family

ID=54092029

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520366283.1U Expired - Fee Related CN204639250U (en) 2015-06-01 2015-06-01 A kind of Double-head twist drill

Country Status (1)

Country Link
CN (1) CN204639250U (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150916

Termination date: 20160601