CN205020905U - BTA instrument - Google Patents

BTA instrument Download PDF

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Publication number
CN205020905U
CN205020905U CN201520752519.5U CN201520752519U CN205020905U CN 205020905 U CN205020905 U CN 205020905U CN 201520752519 U CN201520752519 U CN 201520752519U CN 205020905 U CN205020905 U CN 205020905U
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CN
China
Prior art keywords
edge
knife
deep
outside
cooling fluid
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
CN201520752519.5U
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Chinese (zh)
Inventor
李朱松
陈兰贞
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.)
Hangzhou Denglong Numerical Technology Co Ltd
Original Assignee
Hangzhou Denglong Numerical Technology 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 Hangzhou Denglong Numerical Technology Co Ltd filed Critical Hangzhou Denglong Numerical Technology Co Ltd
Priority to CN201520752519.5U priority Critical patent/CN205020905U/en
Application granted granted Critical
Publication of CN205020905U publication Critical patent/CN205020905U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a BTA instrument, including the cutter arbor, tool bit and handle of a knife, connect through the sword neck between cutter arbor and the handle of a knife, be equipped with the installation bearing on the sword neck, the surface of cutter arbor is equipped with along its length direction's outer chip groove, be equipped with in the cutter arbor along its length direction's coolant liquid hole, the tip of cutter arbor is equipped with eccentric knife tip, the both sides of eccentric knife tip are equipped with outside and inside edge respectively, the length of outside is less than inside edge, the tool cutting edge angle of outside is greater than inside edge's auxiliary angle, the coolant liquid hole is crossing respectively with inside edge and outside, the tip and the crossing outside limit and the interior side of forming of tool bit of outer chip groove, the contained angle of outside limit and interior side is 120 -150, form the chip removal transition face between interior side and the inside edge. The utility model discloses the chip removal is unobstructed, has good heat conductivility and cooling and lubrication function.

Description

A kind of deep-hole machining tool
Technical field
The utility model relates to the cutter of field of machining.
Background technology
Deep hole machining refers to the hole that draw ratio (i.e. the ratio of hole depth L and aperture d) is greater than 5 ~ 10.Common deep hole L/d<5 ~ 20, go processing after fluted drill spreading can being done length, the deep Kong Zexu of the spy for L/d>20 ~ 100 processes in special equipment, special deep hole working machine and deep hole tools.Be semiclosed in deep hole machining hole when, its intrinsic difficult problem is: chip breaking, chip removal are difficult, poor heat conductivity, cooling and lubricating not easily, the situation such as also there will be cutter poor rigidity, easily shake, vibrations, distortion fracture.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of deep-hole machining tool, and it is for the boring procedure of deep hole machining, and its chip removal is unobstructed, has good heat conductivility and cooling and lubricating function.
The technical scheme that the utility model technical solution problem adopts is: a kind of deep-hole machining tool, comprise knife bar, cutter head and handle of a knife, connected by cutter neck between described knife bar and handle of a knife, described cutter neck is provided with installation bearing, the outer surface of described knife bar is provided with external chip discharging groove along its length, cooling fluid apertures is along its length provided with in described knife bar, the end of described knife bar is provided with eccentric point of a knife, the both sides of described eccentric point of a knife are respectively equipped with outside and inner edge, the length of described outside is less than described inner edge, the tool cutting edge angle of described outside is greater than the auxiliary angle of described inner edge, described cooling fluid apertures and described inner edge and described outside crossing respectively, the end of described external chip discharging groove is crossing with cutter head forms outer side edges and inner side edge, the angle of described outer side edges and described inner side edge is 120-150 °, chip removal transition face is formed between described inner side edge and described inner edge.
While employing technique scheme, the utility model can also adopt or combine and adopt following further technical scheme:
Described installation bearing is dicyclo bearing.
Described knife bar and cutter head adopt carbide alloy to make.
Described handle of a knife and cutter neck adopt steel material to make.
Described outside is provided with blade, and described blade adopts carbide alloy to make, and described blade is provided with Cooling Holes, and described Cooling Holes is communicated with described cooling fluid apertures.
Described inner edge is provided with sliver, and described sliver forms chip removal lead-over groove between cutter head and knife bar, and chip removal lead-over groove is communicated with external chip discharging groove.
The afterbody of described external chip discharging groove has face excessive in the connection of described knife bar, and the excessive face of described connection is level and smooth cambered surface, and the afterbody in the excessive face of described connection forms outside channel of chip removal, and the afterbody of described external chip discharging groove extends to close to described cutter neck.
Described cooling fluid apertures is at least one, and when described cooling fluid apertures is one, described cooling fluid apertures is in the bar hole consistent with the cross section radian of described cutter head, and when described cooling fluid apertures is more than one, described cooling fluid apertures is uniform along the cross section radian of described cutter head.
Described cooling fluid apertures has certain angle of bend on the length direction along described knife bar.
The degree of depth of described external chip discharging groove is in camber line on the length direction along described knife bar, and the degree of depth in the middle part of it is greater than the degree of depth at two ends.
The beneficial effects of the utility model are: cutter head of the present utility model is eccentric design, outside and inner edge is provided with at cutter head position, outside main cutting is processed, liquid is led in the main chip removal of inner edge, outside installs carbide chip, inner edge and chip area are by chip removal transition face, interior outside complements each other to form good cutting and cooling and lubricating performance when rotating, while guaranteeing deep hole machining process smoothness, prevent waste material in process from piling up at drill bit position, drill bit is played a protective role, the degree of depth of chip area more from deep to shallow from shallow to deep, form smooth channel of chip removal, the width of chip area accounts for about 1/3 of knife bar sectional area, guarantee that process channel of chip removal extends to cutter neck position, advantageously in chip removal, cooling fluid apertures film-cooled heat of the present utility model is large, cooling fluid can be gone directly inner edge and outside, while lubrication is carried out to processing, also chip removal can be assisted, cooling fluid apertures has certain angle of bend in the longitudinal direction, guarantee the flow velocity that cooling fluid remains certain, in addition, the utility model is connected with handle of a knife knife bar by cutter neck position, bearing is arranged on cutter neck, improve bonding strength, guarantee the stability of cutter in processing, bearing adopts twin nuclei, guarantee installation accuracy further, when only having two BEARING SHAFTs to overlap, cutter could stable rotation.
Accompanying drawing explanation
Fig. 1 is overall structure figure of the present utility model.
Fig. 2 is the structure chart that the utility model conceals handle of a knife position.
Fig. 3 is the schematic diagram at the point of a knife position of embodiment 1 of the present utility model.
Fig. 4 is the upward view of Fig. 3.
Fig. 5 is the schematic diagram at the point of a knife position of embodiment 2 of the present utility model.
Fig. 6 is the upward view of Fig. 5.
Detailed description of the invention
Embodiment 1, with reference to accompanying drawing 1-4.
The utility model comprises knife bar 1, cutter head 2 and handle of a knife 3, is connected between knife bar 1 and handle of a knife 3 by cutter neck 4, and cutter neck 4 is provided with installs bearing 5, and installing bearing 5 is dicyclo bearing; Knife bar 1 and cutter head 2 adopt carbide alloy to make; Handle of a knife 3 and cutter neck 4 adopt steel material to make, and adopt brazing between knife bar 1 and cutter neck 4.
The outer surface of knife bar 1 is provided with external chip discharging groove 6 along its length, cooling fluid apertures 7 is along its length provided with in knife bar 1, the end of knife bar 1 is provided with eccentric point of a knife 8, the both sides of eccentric point of a knife 8 are respectively equipped with outside 9 and inner edge 10, and the length of outside 9 is less than inner edge 10, and the tool cutting edge angle of outside 9 is greater than the auxiliary angle 10 of inner edge, outside 9 is provided with blade 11, blade 11 adopts carbide alloy to make, and blade 11 is provided with Cooling Holes 12, and Cooling Holes 12 is communicated with cooling fluid apertures 7; Inner edge 10 is provided with sliver 13, and sliver 13 forms chip removal lead-over groove between cutter head 2 and knife bar 1, and chip removal lead-over groove is communicated with external chip discharging groove 6.
Cooling fluid apertures 7 and inner edge 10 and outside 9 crossing respectively, the end of external chip discharging groove 6 is crossing with cutter head 2 forms outer side edges 14 and inner side edge 15, and the angle of outer side edges 14 and inner side edge 15 is 120-150 °, forms chip removal transition face 16 between inner side edge 15 and inner edge 10.
The afterbody of external chip discharging groove 6 has the excessive face 17 with the connection of knife bar 2, and connecting excessive face 17 is level and smooth cambered surface, and the afterbody connecting excessive face 17 forms outside channel of chip removal, and the afterbody of external chip discharging groove 6 extends to close to cutter neck 4.
Cooling fluid apertures 7 of the present utility model is one, and cooling fluid apertures 7 is the bar hole consistent with the cross section radian of cutter head 2,
Cooling fluid apertures 7 has certain angle of bend on the length direction along knife bar 1.
The degree of depth of external chip discharging groove 6 is in camber line on the length direction along knife bar 1, and the degree of depth in the middle part of it is greater than the degree of depth at two ends.
Embodiment 2, with reference to accompanying drawing 1,2,5,6.
In the present embodiment, cooling fluid apertures 7 is more than one, and cooling fluid apertures 7 is uniform along the cross section radian of cutter head 2.Other embodiments of the present embodiment are identical with embodiment 1.

Claims (10)

1. a deep-hole machining tool, comprise knife bar, cutter head and handle of a knife, connected by cutter neck between described knife bar and handle of a knife, described cutter neck is provided with installation bearing, it is characterized in that: the outer surface of described knife bar is provided with external chip discharging groove along its length, cooling fluid apertures is along its length provided with in described knife bar, the end of described knife bar is provided with eccentric point of a knife, the both sides of described eccentric point of a knife are respectively equipped with outside and inner edge, the length of described outside is less than described inner edge, the tool cutting edge angle of described outside is greater than the auxiliary angle of described inner edge, described cooling fluid apertures and described inner edge and described outside crossing respectively, the end of described external chip discharging groove is crossing with cutter head forms outer side edges and inner side edge, the angle of described outer side edges and described inner side edge is 120-150 °, chip removal transition face is formed between described inner side edge and described inner edge.
2. a kind of deep-hole machining tool as claimed in claim 1, is characterized in that: described installation bearing is dicyclo bearing.
3. a kind of deep-hole machining tool as claimed in claim 1, is characterized in that: described knife bar and cutter head adopt carbide alloy to make.
4. a kind of deep-hole machining tool as claimed in claim 1, is characterized in that: described handle of a knife and cutter neck adopt steel material to make.
5. a kind of deep-hole machining tool as claimed in claim 1, is characterized in that: described outside is provided with blade, and described blade adopts carbide alloy to make, and described blade is provided with Cooling Holes, and described Cooling Holes is communicated with described cooling fluid apertures.
6. a kind of deep-hole machining tool as claimed in claim 1, it is characterized in that: described inner edge is provided with sliver, described sliver forms chip removal lead-over groove between cutter head and knife bar, and chip removal lead-over groove is communicated with external chip discharging groove.
7. a kind of deep-hole machining tool as claimed in claim 1, it is characterized in that: the afterbody of described external chip discharging groove has face excessive in the connection of described knife bar, the excessive face of described connection is level and smooth cambered surface, the afterbody in the excessive face of described connection forms outside channel of chip removal, and the afterbody of described external chip discharging groove extends to close to described cutter neck.
8. a kind of deep-hole machining tool as claimed in claim 1, it is characterized in that: described cooling fluid apertures is at least one, when described cooling fluid apertures is one, described cooling fluid apertures is in the bar hole consistent with the cross section radian of described cutter head, when described cooling fluid apertures is more than one, described cooling fluid apertures is uniform along the cross section radian of described cutter head.
9. a kind of deep-hole machining tool as claimed in claim 1, is characterized in that: described cooling fluid apertures has certain angle of bend on the length direction along described knife bar.
10. a kind of deep-hole machining tool as claimed in claim 1, is characterized in that: the degree of depth of described external chip discharging groove is in camber line on the length direction along described knife bar, and the degree of depth in the middle part of it is greater than the degree of depth at two ends.
CN201520752519.5U 2015-09-25 2015-09-25 BTA instrument Expired - Fee Related CN205020905U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520752519.5U CN205020905U (en) 2015-09-25 2015-09-25 BTA instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520752519.5U CN205020905U (en) 2015-09-25 2015-09-25 BTA instrument

Publications (1)

Publication Number Publication Date
CN205020905U true CN205020905U (en) 2016-02-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520752519.5U Expired - Fee Related CN205020905U (en) 2015-09-25 2015-09-25 BTA instrument

Country Status (1)

Country Link
CN (1) CN205020905U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106853578A (en) * 2016-12-28 2017-06-16 贵州黎阳国际制造有限公司 The processing method of tumbler blind hole in a kind of aero-engine
CN107914033A (en) * 2016-10-10 2018-04-17 中北大学 There is anti-bias outside chip removal deep hole drill
CN111036951A (en) * 2019-12-25 2020-04-21 北京航星机器制造有限公司 Skin deep hole machining method with active cooling channel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107914033A (en) * 2016-10-10 2018-04-17 中北大学 There is anti-bias outside chip removal deep hole drill
CN106853578A (en) * 2016-12-28 2017-06-16 贵州黎阳国际制造有限公司 The processing method of tumbler blind hole in a kind of aero-engine
CN111036951A (en) * 2019-12-25 2020-04-21 北京航星机器制造有限公司 Skin deep hole machining method with active cooling channel

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

Granted publication date: 20160210

Termination date: 20190925

CF01 Termination of patent right due to non-payment of annual fee