CN101116938A - Method for processing fluted twist drill helix plow-groove and machine-tooled plow-groove positioning device of the plow-groove machine - Google Patents
Method for processing fluted twist drill helix plow-groove and machine-tooled plow-groove positioning device of the plow-groove machine Download PDFInfo
- Publication number
- CN101116938A CN101116938A CNA2007100706132A CN200710070613A CN101116938A CN 101116938 A CN101116938 A CN 101116938A CN A2007100706132 A CNA2007100706132 A CN A2007100706132A CN 200710070613 A CN200710070613 A CN 200710070613A CN 101116938 A CN101116938 A CN 101116938A
- Authority
- CN
- China
- Prior art keywords
- groove
- machine
- fluted drill
- spiral grooves
- guide pin
- 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.)
- Pending
Links
Landscapes
- Drilling Tools (AREA)
Abstract
The present invention discloses a method to process the spiral groove of twist drill and a groove positioning device for machining groove, the method of the present invention is that firstly, a thermal pressing method is used to process a rough of the spiral groove and a machining allowance is kept, a groove machine with groove positioning device for machining is used to process the spiral groove; the structure of the positioning device of the present invention comprises an upper end guiding sleeve (13) and a guiding sleeve base (14) covered on a processed twist drill (12), the bottom of the guiding sleeve base is fixed on the surface of a machine tool, one side of the guiding sleeve base (14) and the guiding sleeve (13) are provided with a through hole (10) which is parallel and level with an axis line of the processed twist drill (12), a positioning rod (11) passes through the through hole (10), one end of which is pressed against a point on the groove wall (1) of the processed twist drill (12) while the other end is connected with a flexible pressing device arranged on the wall of the guiding sleeve base (14) at the same side. The invention has the combined advantages of two spiral groove processing methods, that is, the thermal pressing method and the machining method in prior art, and overcomes the shortcomings in the prior art.
Description
Technical field
The present invention relates to a kind of manufacture method and special equipment of fluted drill, specifically be a kind of method of processing the fluted drill spiral grooves and machined grooves machine () the groove positioner.
Background technology
The history in existing more than 100 year of the production of fluted drill.It generally is fracture → cylindrical grinding → mill or face work chamfering → processing (going out) spiral (shape) groove → mill or the car point → cylindrical grinding → heat treatment → cylindrical grinding → sharpening back of the body → abrasive drilling point → typewriting → finished product that prior art is made its processing step of fluted drill method.Certainly, some order can change in the above-mentioned processing method, and some step then can repeat.It more than is mature technology.
And the committed step in the above-mentioned processing step: the processing spiral grooves, prior art mainly contains two kinds of methods at present.
A kind of is to adopt the thermal pressure processing method directly to process spiral grooves.Described thermal pressure processing method also claims plastic deformation processing method, mainly comprise four rollings, four plates rub with the hands, roll turn round, extruding etc., these methods and equipment thereof are mature technology.The advantage that adopts the thermal pressure processing method directly to process spiral grooves is because the material longitudinal fiber is not cut off, so good rigidly, intensity height; Material makes carbide obtain further fragmentation through roll compacting once more, is evenly distributed, grain refinement, increased drill bit wearability, make the bit cutting life-span long; Because of amount of machining less, so save material; Process velocity is fast, the production efficiency height.But its shortcoming is also fairly obvious: low precision, i.e. and size inaccuracy, the morpheme error is bigger; There is the oxidation and decarbonization layer on the spiral grooves surface; The spiral grooves poor surface smoothness; Borehole accuracy is poor; Big (the industry generic term of the durability dispersiveness of drill bit.The quantity that means the hole that same batch, the drill bit of same specification can bore under identical service condition differs greatly.The durability dispersiveness of drill bit is big more, illustrates that the quality stability of drill bit is poor more; And the durability dispersiveness of following drill bit is less, and its meaning is just in time opposite, and the quality stability of explanation drill bit is better).
Another kind is to adopt machine-tooled method directly to process spiral grooves.Described machine-tooled method also claims machining process, mainly comprises mill, mills etc., and these methods and equipment thereof also are mature technology.The advantage that adopts machine-tooled method directly to process spiral grooves is the precision height, and promptly size is accurate, and the morpheme error is little; The spiral grooves surface smoothness is good; The borehole accuracy height; The durability dispersiveness of drill bit is less.And its relative shortcoming is because the material longitudinal fiber is cut off, so rigidity is relatively poor, intensity is lower; Because material is not through roll compacting once more, carbide does not obtain further fragmentation, and its distribution is owed evenly, crystal grain does not obtain further refinement, thereby the wearability of drill bit is relatively poor, and its bit cutting life-span is undesirable; Because of amount of machining more, so the waste of raw material such as high-speed tool steel is bigger; Its process velocity is slower, and production efficiency is lower.
For a long time, people get used to choosing any one kind of them in the method for above two kinds of processing spiral grooves, and the industry continues into the present always both at home and abroad.
Simultaneously, the fluted drill machined grooves machine of prior art such as notch grinder can only begin machined grooves such as slot grinding from the optional position of round bar, and can not be under fluted situation again machined grooves promptly lack the groove positioner of machined grooves machine such as notch grinder as the mill groove.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of advantage that has two kinds of processing methods of above prior art processing spiral grooves simultaneously is provided, and overcomes the method for the processing fluted drill spiral grooves of its shortcoming again simultaneously.
Technical scheme of the present invention is, with the thermal pressure processing of prior art and the ingenious combination of method of two kinds of processing of machined spiral grooves, provide a kind of new method of processing the fluted drill spiral grooves: process the spiral grooves blank with the thermal pressure processing method earlier, reserve machining allowance; Process spiral grooves having on the machined grooves machine of groove positioner again.
The described machining allowance of reserving is preferably and reserves grinding allowance, and the described grinding allowance of reserving is preferably 0.3～0.5mm.
Describedly process spiral grooves having on the machined grooves machine of groove positioner, be preferably having on the fluted drill notch grinder of groove positioner and carry out slot grinding.
After adopting above structure, the present invention processes the method for fluted drill spiral grooves, compare with above-described prior art, have following remarkable advantage and beneficial effect: combine rightly because the present invention processes the thermal pressure of prior art and the method for two kinds of processing of machined spiral grooves is ingenious, change the industry and defended tenaciously each defectiveness and two kinds of independent methods and irrational situation of depositing for a long time, thoroughly solved the technical barrier of the processing spiral grooves of puzzlement industry decades.
The method that the present invention processes the fluted drill spiral grooves has the advantage that above prior art is processed two kinds of processing methods of spiral grooves simultaneously, has overcome their shortcoming again simultaneously:
Compare with the method that adopts the thermal pressure processing method directly to process spiral grooves, method of the present invention has following significantly outstanding advantage and significant beneficial effect: fluted drill precision height, be that size is accurate, the morpheme error is little, the spiral grooves surface smoothness is good, the borehole accuracy height, the durability dispersiveness of drill bit is little.
Compare with the method that adopts machine-tooled method directly to process spiral grooves, method of the present invention has following significantly outstanding advantage and significant beneficial effect: because the material longitudinal fiber is not cut off, so good rigidly, intensity height, material is through roll compacting once more, make carbide obtain further fragmentation, be evenly distributed, grain refinement, the quality of fluted drill is greatly improved, increased fluted drill wearability, the working durability is prolonged significantly.Simultaneously in machined grooves such as slot grinding operation, amount of machining such as stock removal reduce significantly, (look drill bit specification difference so save material, can save high-speed tool steel average out to 20%～30%), emery wheel consumption reduces significantly, and the crushing number of times reduces, and the diamond pen loss is few, machine motor power reduces, thereby has reduced production cost.The probability of grinding burn descends, and oil smoke reduces during grinding, and ambient air contamination is alleviated.Machined such as grinding efficiency improve, and feed speed is accelerated, and production efficiency increases substantially.
Adopt method of the present invention to produce fluted drill, both for society has saved ample resources, had good social benefit, quality improves because cost reduces again, has strengthened the market competitiveness, brings good economic benefits to the applicant.
Another technical problem that the present invention will solve is, a kind of machined grooves machine groove positioner of implementing above method is provided, and it comprises that the upper end guide pin bushing is enclosed within on the processed fluted drill and the bottom is fixed on guide pin bushing seat on the lathe face; One side of guide pin bushing seat and guide pin bushing has the through hole of axis on same horizontal line of its axis and processed fluted drill, backstay pass through hole one end top to the processed fluted drill trench wall a bit, its other end is connected with elastic pressuring clamping device on being installed in this side guide pin bushing seat wall.
Described elastic pressuring clamping device can adopt following concrete structure: the connecting rod of positional cylinder is connected with connecting rod is vertical, and the cramp bar of connecting rod and elastic compression seat is vertical to be connected and its right angle node is hinged on the hinge pin that is fixed on the guide pin bushing seat wall; The other end of described backstay is connected the specific bit bar with elastic pressuring clamping device the other end is connected with the briquetting that is strutted by spring of pressed seat.
Described machined grooves machine is preferably notch grinder, and the bottom of described guide pin bushing seat is fixed on and refers on the lathe face be fixed on the lathe face of fluted drill notch grinder.
Description of drawings
Accompanying drawing is a structural representation of implementing the machined grooves machine groove positioner of the inventive method.
Shown in the figure 1, trench wall, 2, positional cylinder, 3, the connecting rod of oil cylinder, 4, connecting rod, 5, hinge pin, 6, support bar, 7, spring, 8, pressed seat, 9, compact heap, 10, (level) through hole, 11, backstay, 12, fluted drill, 13, guide pin bushing, 14, the guide pin bushing seat.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
The present invention is except that the method for committed step processing fluted drill spiral grooves, and other processing step of whole manufacturing fluted drill is same as the prior art, does not give unnecessary details at this.
Characteristics of the present invention are, the employing thermal pressure processing method of prior art directly processed spiral grooves and adopt machine-tooled method directly to process two kinds of methods of spiral grooves combine effectively, earlier process the spiral grooves blank with the thermal pressure processing method, reserve machining allowance, as reserve grinding allowance, the described grinding allowance of reserving is generally 0.3～0.5mm, carry out slot grinding at the machined grooves machine that has the groove positioner on as the fluted drill notch grinder that is having the groove positioner again, thereby process spiral grooves.
Describedly earlier processing the spiral grooves blank with the thermal pressure processing method, reserve machining allowance, generally is to carry out after the step (operation) of the face grinding chamfering in whole fluted drill manufacturing technology steps.Described thermal pressure method for processing is plastic deformation processing method and equipment, is mature technology as adopting four-high mill to process the spiral grooves blank, so also do not give unnecessary details at this.Describedly carrying out slot grinding at the machined grooves machine that has the groove positioner on as the fluted drill notch grinder that is having the groove positioner again, generally is to carry out after the step of the sharpening → cylindrical grinding → heat treatment → cylindrical grinding in whole fluted drill manufacturing technology steps.Described mach method and apparatus also is a mature technology as adopting fluted drill notch grinder slot grinding (groove positioner of the present invention will illustrate below), so also do not give unnecessary details at this.
In order to make above-mentioned content more clear, show the processing step letter of whole fluted drill manufacturing of the present invention as follows again: the fracture → cylindrical grinding → face grinding chamfering → plastic deformation processing groove → sharpening → cylindrical grinding → heat treatment → cylindrical grinding → mill groove → sharpening back of the body → abrasive drilling point → typewriting → finished product.
As shown in drawings, implementing the present invention, to process the structure of machined grooves machine groove positioner of fluted drill spiral grooves method as follows: it comprises that upper end guide pin bushing 13 is enclosed within on the processed fluted drill 12 and the bottom is fixed on guide pin bushing seat 14 on the lathe face; One side of guide pin bushing seat 14 and guide pin bushing 13 has the through hole 10 of axis on same horizontal line of its axis and processed fluted drill 12, backstay 11 pass through hole 10 one ends tops to processed fluted drill 12 trench walls 1 a bit, its other end is connected with elastic pressuring clamping device on being installed in these side guide pin bushing seat 14 outer walls.Described elastic pressuring clamping device refers to, the connecting rod 3 of positional cylinder 2 and 4 vertical connections of connecting rod, and the cramp bar 6 of connecting rod 4 and elastic compression seat 8 is vertical to be connected and its right angle node is hinged on the hinge pin 5 that is fixed on guide pin bushing seat 14 walls; The other end of described backstay 11 is connected specific bit bar 11 with elastic pressuring clamping device the other end is connected with the compact heap 9 that is strutted by spring 7 of pressed seat 8, and certainly, known to general knowledge, this end of backstay 11 passes the through hole of pressed seat 8 right-hand member walls.
Described machined grooves machine refers to notch grinder; The bottom of described guide pin bushing seat 14 is fixed on and refers on the lathe face fix as be fixed on the lathe face of fluted drill notch grinder with the screw (not shown).Hydraulic principle and structure as for hydraulic jack all belong to routine techniques, also do not give unnecessary details at this.
The present invention not only is confined to above embodiment, all various variations of in the protection domain of method independent claims 1 and equipment independent claims 5, being done all in protection scope of the present invention, as: as described in reserve the surplus that machining allowance also can refer to reserve milling; The described grinding allowance of reserving also can be in 0.3～0.5mm scope in addition; Describedly process spiral grooves having on the machined grooves machine of groove positioner, also can refer to carry out groove milling having on the fluted drill slotter of groove positioner; Described elastic pressuring clamping device also can be the elastic pressuring clamping device of pure machinery or the elastic pressuring clamping device that is replaced hydraulic jack by motor; Described machined grooves machine also can refer to slotter; The bottom of described guide pin bushing seat is fixed on and also can refers on the lathe face be fixed on the lathe face of fluted drill slotter; Or the like.More than these variations, all fall within the scope of protection of the present invention.
Claims (7)
1. a method of processing the fluted drill spiral grooves is characterized in that: process the spiral grooves blank with the thermal pressure processing method earlier, reserve machining allowance; Process spiral grooves having on the machined grooves machine of groove positioner again.
2. the method for processing fluted drill spiral grooves according to claim 1 is characterized in that: describedly reserve the surplus that machining allowance refers to reserve grinding.
3. the method for processing fluted drill spiral grooves according to claim 2 is characterized in that: the described surplus of reserving grinding is 0.3～0.5mm.
4. the method for processing fluted drill spiral grooves according to claim 1 is characterized in that: describedly process spiral grooves having on the machined grooves machine of groove positioner, refer to carry out slot grinding having on the fluted drill notch grinder of groove positioner.
5. machined grooves machine groove positioner of implementing any method in the claim 1～4 is characterized in that: it comprises that upper end guide pin bushing (13) is enclosed within that processed fluted drill (12) is gone up and the bottom is fixed on guide pin bushing seat (14) on the lathe face; One side of guide pin bushing seat (14) and guide pin bushing (13) has the through hole (10) of axis on same horizontal line of its axis and processed fluted drill (12), backstay (11) passes through hole (10), one end top to processed fluted drill (12) trench wall (1) a bit, its other end is connected with elastic pressuring clamping device on being installed in this side guide pin bushing seat (14) outer wall.
6. machined grooves machine groove positioner according to claim 5, it is characterized in that: described elastic pressuring clamping device refers to, the connecting rod (3) of positional cylinder (2) and vertical connection of connecting rod (4), the cramp bar (6) of connecting rod (4) and elastic compression seat (8) is vertical to be connected and its right angle node is hinged on the hinge pin (5) that is fixed on guide pin bushing seat (14) wall; The other end of described backstay (11) is connected specific bit bar (11) with elastic pressuring clamping device the other end is connected with the compact heap (9) that is strutted by spring (7) of pressed seat (8).
7. machined grooves machine groove positioner according to claim 5, it is characterized in that: described machined grooves machine refers to notch grinder; The bottom of described guide pin bushing seat (14) is fixed on and refers on the lathe face be fixed on the lathe face of fluted drill notch grinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100706132A CN101116938A (en) | 2007-08-30 | 2007-08-30 | Method for processing fluted twist drill helix plow-groove and machine-tooled plow-groove positioning device of the plow-groove machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100706132A CN101116938A (en) | 2007-08-30 | 2007-08-30 | Method for processing fluted twist drill helix plow-groove and machine-tooled plow-groove positioning device of the plow-groove machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101116938A true CN101116938A (en) | 2008-02-06 |
Family
ID=39053281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100706132A Pending CN101116938A (en) | 2007-08-30 | 2007-08-30 | Method for processing fluted twist drill helix plow-groove and machine-tooled plow-groove positioning device of the plow-groove machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101116938A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513885A (en) * | 2011-12-07 | 2012-06-27 | 苏州阿诺精密切削技术股份有限公司 | Processing method of carbide twist drill bit |
| CN105209190A (en) * | 2013-05-06 | 2015-12-30 | 喜利得股份公司 | Twist drill and production method |
| CN105397438A (en) * | 2015-12-31 | 2016-03-16 | 武汉江钻恒立工程钻具股份有限公司 | Manufacture method of way-type drilling unit |
| CN106181709A (en) * | 2016-08-01 | 2016-12-07 | 大连中实数控设备有限公司 | Full-automatic fluted drill ditch back of the body one grinding machine |
-
2007
- 2007-08-30 CN CNA2007100706132A patent/CN101116938A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513885A (en) * | 2011-12-07 | 2012-06-27 | 苏州阿诺精密切削技术股份有限公司 | Processing method of carbide twist drill bit |
| CN105209190A (en) * | 2013-05-06 | 2015-12-30 | 喜利得股份公司 | Twist drill and production method |
| CN105209190B (en) * | 2013-05-06 | 2017-08-25 | 喜利得股份公司 | Fluted drill and manufacture method |
| US10245657B2 (en) | 2013-05-06 | 2019-04-02 | Hilti Aktiengesellschaft | Twist drill and production method |
| CN105397438A (en) * | 2015-12-31 | 2016-03-16 | 武汉江钻恒立工程钻具股份有限公司 | Manufacture method of way-type drilling unit |
| CN106181709A (en) * | 2016-08-01 | 2016-12-07 | 大连中实数控设备有限公司 | Full-automatic fluted drill ditch back of the body one grinding machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102039519B (en) | Manufacturing process of high-precision extrusion die for DeNOx catalyst | |
| CN105665805B (en) | One kind is hardened the special indexable hat rose cutter of steel mold | |
| CN105750599A (en) | Integral compound tool for machining walls and bottoms of stepped holes | |
| CN101116938A (en) | Method for processing fluted twist drill helix plow-groove and machine-tooled plow-groove positioning device of the plow-groove machine | |
| CN203281947U (en) | Positive and negative chamfering bit for machining plate parts | |
| CN201415346Y (en) | A all-computer controlled grinding machine for drill bit and milling cutter | |
| CN100509196C (en) | Method for processing deep hole drill knife bar chip area utilizing common planning cart and special tool thereof | |
| CN111673403A (en) | Hard alloy twist drill rod grinding process | |
| CN101767226B (en) | Method for machining gear tooth of large module gear by double-cutter jacking | |
| CN105290482A (en) | Milling and rolling integrated cutter | |
| CN203031046U (en) | Diamond reamer for honing valve core holes | |
| CN100493823C (en) | Processing method of full-grinding twist drill after plastic deformation, and machining and positioning apparatus | |
| CN112621106B (en) | Groove machining method | |
| CN201862859U (en) | Taper reamer with unequal teeth | |
| CN110052671B (en) | TiC-based steel cemented hard alloy fine tooth external thread milling device | |
| CN2923121Y (en) | Turning cutter | |
| CN201483054U (en) | Cutter head for milling key slot | |
| CN109623617B (en) | A kind of device and final polishing method of removal surface material line | |
| CN106363199A (en) | Machining tool and machining method for deep and long annular cavity | |
| CN202317272U (en) | Processing rasper for compensation tank of cycloid hydraulic motor stator | |
| CN202804279U (en) | Embedded sheet type carbide drill for steel pieces | |
| CN1850425B (en) | Penknife spiral knife production method | |
| CN202824769U (en) | Abrasion-resistant tool used for counter sinking | |
| CN205237153U (en) | Powerful drill bit is used to gear wheel | |
| CN213410367U (en) | Novel numerical control machine tool cutter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |