CN104148709A - Trepanning tool - Google Patents
Trepanning tool Download PDFInfo
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- CN104148709A CN104148709A CN201410303719.2A CN201410303719A CN104148709A CN 104148709 A CN104148709 A CN 104148709A CN 201410303719 A CN201410303719 A CN 201410303719A CN 104148709 A CN104148709 A CN 104148709A
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- bite
- cutter hub
- jacking
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- tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
- B23B51/0466—Drills for trepanning with exchangeable cutting inserts, e.g. able to be clamped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
- B23B51/042—Drills for trepanning with lubricating or cooling equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/40—Flutes, i.e. chip conveying grooves
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- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a trepanning tool. By the adoption of the structural design, the cutting force is lowered, the amount of feed is increased, cutting efficiency is improved, and cutting stability is improved. The mode is that an inner cutter, a middle cutter and an outer cutter are adopted to conduct cutting working on different circumferences of a shaft body to be machined; a main cutting edge of the inner cutter and a main cutting edge of the outer cutter are arranged in an inclined mode; a chip splitting cutter is arranged; an inner clipping cutter, a middle clipping cutter and an outer clipping cutter are optimized, and the structure parameters, position parameters and other parameters of the chip splitting cutter are optimized.
Description
Technical field
The present invention relates to the tool for cutting machining technical field of metal material, be specifically related to a kind of jacking cutting tool of the deep hole jacking for metal material.
Background technology
Existing drill bit can only be processed the deep hole of diameter below 120mm.For the processing of the above deep hole of 120mm, can only first use the deep hole of diameter 120mm of holing out, and then use boring cutter reaming, the value of clout is low.In addition, this first boring, the secondary operations mode step trouble of bore hole again, labour intensity is large, and bore hole extends the process time of deep hole, has reduced working (machining) efficiency.Taking with processing diameter as the deep hole of 180mm is as example, the bore hole time is about 2 times of left and right of drilling time, bore hole operation just makes increase by 200% the process time of whole deep hole.
For overcoming above-mentioned defect, people develop deep hole jacking technology for this reason.The feature of deep hole jacking is when deep hole processing, to utilize the shear action of blade from solid bar, by the continuous chip removal of high pressure cutting oil, in completing deep hole machining, obtains an overall virgin material, improves the utilization rate of work metal material.Deep hole taking processing diameter as 120mm, as example, by overlaying processing, can obtain the clout plug that diameter is about 60mm.Secondly, can time processing, reduce process time.
The structure of existing jacking cutting tool mainly contains two kinds: a kind of is that each blade cut tread degree of jacking cutting tool is consistent, adopts difform cutting edge, if application number is 201310628202.6 disclosed treapanning drills; Its advantage is that feed is stable, but that shortcoming is cutting force is large, and the depth of cut is little.Another kind is that each cutting edge width increases successively, and the cutter head flank of tooth stretches out size and differs certain distance, obtains being step-like cutting face, if application number is that disclosed trepanning tool in 87203994, application number are 201310652659.0 disclosed jacking cutting tools; Its advantage is that cutting force is little, and the depth of cut is large, but shortcoming is feed shakiness, the endoporus poor dimensional precision of processing.
In addition, above-mentioned jacking cutting tool adopts the mode of external chip discharging more, it is the periphery that chip area and chip pocket are located at jacking cutting tool, therefore consider powder to be worth doing to stop up the gap between jacking cutting tool and axis body to be processed, cause obstruction to jacking cutting tool precession axis body to be processed, therefore this go out bits mode more consume energy, can improve cutting force and reduce the depth of cut.
Summary of the invention
According to company's machine tool, through practice and studying intensively, conventional jacking cutting tool has been carried out to innovative improvement, reduce the required cutting force of cutter work, improved the depth of cut, simultaneously can ensure steady feed, the dimensional accuracy that machinable deep hole size range is large, obtain after processing is high.
A kind of jacking cutting tool of the present invention, comprises columnar cutter hub, and cutter hub one end end face is provided with some bites, and the cutter hub other end is provided with the screw thread for connecting, each cutting edge is positioned at the different annular of cutter hub end face, comprise the bite that is positioned at inner side annulus, be arranged in the outer bite and the bite that is positioned at central circular of outside annulus, the main cutting edge of interior bite extends cutter hub inwall in cutter hub end face, and be obliquely installed to the cutter hub other end, the main cutting edge of outer bite extends cutter hub outer wall in cutter hub end face, and be obliquely installed to the cutter hub other end, the main cutting edge of interior bite is all arranged on the annulus of bite place or annulus away from the main cutting edge of cutter hub central shaft one end and outer bite by feed body central shaft one end, cutter hub is provided with the chip area of the rake face that is communicated to each bite, on the pipe shaft circumference of cutter hub, is provided with the chip pocket being communicated with each chip area.
Compared with existing jacking cutting tool, jacking cutting tool of the present invention is shared cutting output by interior, domestic and abroad bite, inside and outside, middle bite treat respectively processing axis body treat jacking part interior, in, excircle cuts, cutting force is little, the depth of cut is large, stock-removing efficiency is high, can process pore diameter range large; And the main cutting edge of interior bite extends cutter hub inwall in cutter hub end face, be obliquely installed to the cutter hub other end, the main cutting edge of outer bite extends cutter hub outer wall in cutter hub end face, be obliquely installed to the cutter hub other end, make inside and outside bite all start gradually jacking from the middle part circumference for the treatment of jacking part of axis body to be processed, stable cutting like this, is difficult for making the jacking cutting tool shake of trembling, and it is high that processing obtains endoporus dimensional accuracy.
Smear metal size is large, easily stops up the gap between axis body to be processed and jacking cutting tool or stops up chip area, causes the increase of cutting force.In order to reduce cutting force, described bite also comprises point bits bite of the central circular that is positioned at described cutter hub end face, and a point bits bite is provided with pointed tooth, and the crown of pointed tooth exceeds the rear knife face of described middle bite.Divide bits bite by setting, reduced smear metal size, and then reduced the required cutting force of work.
For heat radiation better, make jacking cutting tool treat processing axis body uniform force application simultaneously, avoid jacking process generation deflection, avoid the jacking cutting tool shake of trembling, improve stable cutting degree, improve processing endoporus dimensional accuracy, preferred technical scheme is that described inside and outside, middle bite and a point bits bite are evenly distributed on described cutter hub end face by circumference equal dividing; Wherein, inside and outside bite is oppositely arranged, and middle bite is oppositely arranged with a point bits bite.
For fear of the jacking cutting tool shake of trembling, improve stable cutting degree, improve processing endoporus dimensional accuracy, preferred technical scheme is that the drift angle of the main cutting edge of described outer bite equates with the drift angle of the main cutting edge of interior bite; The drift angle of the cutting edge of described middle bite is 0 °, and a point bits bite is provided with single pointed tooth, the center line of pointed tooth and cutter hub central axes, and point bits cutting edge is along the center line symmetry of pointed tooth.
For fear of the gap between outer wall and the axis body inwall to be processed of smear metal obstruction jacking cutting tool, and then the horsepower requirement of the motor of reduction to driving jacking cutting tool, preferably technical scheme is,
Described chip pocket is located at the inwall of described cutter hub; The outer wall of cutter hub is provided with cooling passage, and cooling passage is communicated to described chip area place.
In order to make trepanning tool have enough intensity to overcome the distortion power of axis body to be processed to it, the front end of jacking cutting tool need to have adequate thickness, but the weight of the excessive easy increase jacking cutting tool of jacking cutting tool thickness, the horsepower of raising motor.In order to lower the weight of jacking cutting tool, reduce driving force, ensure enough intensity simultaneously, preferred technical scheme is, described cutter hub outer wall is ladder platform structure, and the cutter hub external diameter at one end place at described bite place is greater than the cutter hub external diameter at the other end place at described screw thread place.Further preferred technical scheme is that described cutter hub is also inlaid with guide pad, to avoid jacking process generation deflection.
Described bite and described cutter hub can be monolithic construction.
In order to make to be convenient to change after bite wearing and tearing, reduce costs, preferred technical scheme is that described bite and described cutter hub are split-type structural; Described bite is fixed on tool rest, and tool rest is fixed in the tool rest groove of cutter hub end face.Wherein, further preferably technical scheme is, the tool rest groove of corresponding described outer bite is located at cutter hub outer wall and end face junction, and outer bite place tool rest has the arc-shaped outer surface identical with this side tool body diameter; The tool rest groove of corresponding described interior bite is located at cutter hub inwall and end face junction, and the tool rest at interior bite place has the arc-shaped inner surface identical with this side tool body internal diameter; The tool rest groove of corresponding described middle bite and described point of bits bite is located in cutter hub end face.Can prevent that like this smear metal is deposited in dead angle, reduce Mary's requirement of motor, reduce cutting force.
Preferably, described bite is indexable mechanical clamped cutting blade.Several cutting edges of each described bite can use in transposition, have not only improved the durability of bite, have saved knife bar material, reduce the cost of charp tool, improved production efficiency, be suitable for producing in enormous quantities, and cutting quality is stable, also can contribute to reduce the consumed power of motor.Wherein, for the better work that adapts to jacking cutting tool, preferably, that described middle bite is selected from is T-shaped, L shaped, one in S type, C type blade, described point of bits bite is selected from the one in W type and F type blade, and that described interior bite is selected from is T-shaped, L shaped, one in S type, C type blade; Described outer bite is selected from the one in L-type, S type, C type, T-shaped blade.Further preferably, described inside and outside, middle bite is T-shaped blade, and described point of bits bite is W type blade.Adopt T-shaped and W type blade to there are the both sides that contact with tool rest, stressed more steady therefore can make blade cut time, make jacking cutting tool smooth working.
In order to make stable cutting, preferred technical scheme is, described bite taking its one end away from described cutter hub center radially as benchmark, rake face is partial to described cutter hub center and is arranged, the deviation angle is 2 ~ 3 °; The drift angle of the main cutting edge of described outer bite is 5 ~ 30 °; In, the back angle of domestic and abroad bite and point bits bite is 5 ~ 30 °, cutting anterior angle is 1 ~ 10 °.
The present invention reduces in the following manner cutting force, improves the depth of cut and stock-removing efficiency, improves stable cutting degree.These modes comprise:
1, born the cutwork of the different circumference of axis body to be processed by interior, domestic and abroad bite, cut more laborsaving.
2, being obliquely installed the cutting edge of inside and outside bite, make inside and outside bite all start gradually jacking from the middle part circumference for the treatment of jacking part of axis body to be processed, make cutting more steady, can prevent from moving in interior bite, outer bite moves outward, improved the precision of processing dimension.
3, be provided with a point bits smear metal cutter, make smear metal divide bits to form less size, suppressed smear metal and stopped up chip area, thereby reduced the horsepower requirement to motor, improve stable cutting degree, reduced cutting force.
4, optimized in, structural parameters and the location parameter of domestic and abroad smear metal cutter and point bits smear metal cutter, thereby reduced cutting force, improve stable cutting.
5, in employing, go out bits mode and carry out chip removal, avoid smear metal to stop up the gap between outer wall and the axis body inwall to be processed of jacking cutting tool, and then reduced the horsepower requirement of motor, improved stable cutting, reduced cutting force.
6, optimized the tool-apron structure for fixing inside and outside bite, eliminated smear metal and piled up dead angle, reduced the consumed power of motor, made cutting more steady.
Compared with prior art, the advantage of jacking cutting tool of the present invention and beneficial effect are:
1, I take charge of this jacking cutting tool of current use and can process diameter and reach deep hole more than 300mm, process only needs the processing that overlaying processing can complete large diameter, deep borehole, has reduced labour intensity, has reduced the production time, improve speed of production, improved production efficiency and product competitiveness.
2, the clout that adopts this jacking cutting tool cover to get off is larger, and the optional scope of other spare and accessory parts that can be used for processing is larger, has greatly improved the utilization rate of material.Taking with this jacking cutting tool processing diameter as the deep hole of 180mm is as example, the clout obtaining is the circle material of the nearly 130mm of diameter.
3,, while using this jacking cutting tool, bits powder goes out bits in being, has greatly saved the use of cooling fluid, has reduced waste, and can keep the scene intact environmental sanitation and safety.
4, this jacking cutting tool can be processed conventional deep hole and small-sized deep hole equally; When conventional the and small-sized deep hole of processing, because the required nominal torque of this jacking cutting tool is little, therefore, compared with conventional jacking cutting tool, there is the advantage of saving energy resource consumption.Certainly, also have above-mentioned for large diameter, deep borehole add man-hour saving cooling fluid, improve stock utilization, be beneficial to the advantages such as environment cleaning.
5, easy for installation, the long service life of this jacking cutting tool, changes bite convenient.
6, this jacking cutting tool stable working, required cutting force is little, the depth of cut is large, stock-removing efficiency is high.
Brief description of the drawings
Fig. 1 is the perspective view of jacking cutting tool in the present invention;
Fig. 2 is the schematic top plan view of Fig. 1;
Fig. 3 is the schematic top plan view after the dismounting of guide bracket and tool rest groove in Fig. 1;
What Fig. 4 was Fig. 3 along I-I partly cuts open schematic diagram;
Fig. 5 is the rake face of outer bite of Fig. 1 partial structurtes schematic diagram in the time of observer;
Fig. 6 is the rake face of interior bite of Fig. 1 partial structurtes schematic diagram in the time of observer;
Fig. 7 is the rake face of middle bite of Fig. 1 partial structurtes schematic diagram in the time of observer;
Fig. 8 is the rake face of point bits bite of Fig. 1 partial structurtes schematic diagram in the time of observer;
Fig. 9 is the rake face of middle bite of Fig. 1 partial structurtes schematic diagram when right;
Figure 10 is the partial enlarged drawing at A place in Fig. 9.
In figure: 1, cutter hub; 2, outer bite; 3, interior bite; 4, middle bite; 5, divide bits bite; 6, chip area; 7, chip pocket; 8, guide pad; 9-1,9-2,9-3,9-4, tool rest groove; 10-1,10-2,10-3,10-4, tool rest; 11, screw thread; 12, cooling passage; 21 and 31, main cutting edge; 41, cutting edge; 51, divide bits cutting edge.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples are only for technical scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.
As shown in Figures 1 to 4, the present invention is a kind of jacking cutting tool, comprises columnar cutter hub 1, and cutter hub 1 one end end face is provided with some bites, and cutter hub 1 other end is provided with the screw thread 11 for connecting, each cutting edge is positioned at the different annular of cutter hub 1 end face, comprise the bite 3 that is positioned at inner side annulus, be arranged in the outer bite 2 and the bite 4 that is positioned at central circular of outside annulus, the main cutting edge 31 of interior bite 3 extends cutter hub 1 inwall in cutter hub 1 end face, and be obliquely installed to cutter hub 1 other end, the main cutting edge 21 of outer bite 2 extends cutter hub 1 outer wall in cutter hub 1 end face, and be obliquely installed to cutter hub 1 other end, the main cutting edge 31 of interior bite 3 is all arranged on bite 4 place annulus or annulus away from the main cutting edge 21 of cutter hub 1 central shaft one end and outer bite 2 by feed body 1 central shaft one end, cutter hub 1 is provided with the chip area 5 of the rake face that is communicated to each bite, is provided with the chip pocket 7 being communicated with each chip area 6 on the pipe shaft circumference of cutter hub 1.
In design at least, in, outer bite 3, 4, 2 share cutting output, wherein, in, outer bite 3, 4, 2 cut respectively the different circumference of axis body to be processed, therefore stock-removing efficiency is high, in addition, the main cutting edge 31 of interior bite 3 extends cutter hub 1 inwall in cutter hub 1 end face, be obliquely installed to cutter hub 1 other end, the main cutting edge 21 of outer bite 2 extends cutter hub 1 outer wall in cutter hub 1 end face, be obliquely installed to cutter hub 1 other end, in making like this, outer bite 3, 2 all start jacking gradually from the middle part circumference for the treatment of jacking part of axis body to be processed, stable cutting like this, be difficult for making the jacking cutting tool shake of trembling, it is high that processing obtains endoporus dimensional accuracy.
Smear metal size is large, easily stops up the gap between axis body to be processed and jacking cutting tool or stops up chip area, increases power consumption, improve cutting force, and smear metal meeting is difficult to fall into chip pocket 7.In order to reduce cutting force, bite also comprises point bits bite 5 of the central circular that is positioned at cutter hub 1 end face, and a point bits bite 5 is provided with pointed tooth, and the crown of pointed tooth exceeds the rear knife face of middle bite 4.Divide bits bite 5 by setting, reduced smear metal size, and then reduced cutting force.Dividing a point bits cutting edge 51 for bits bite 5 can be to have monodentate or multiple tooth cutting edge, and it can divide bits to form thinner plurality of fibers smear metal when cutting lay is cut.
For heat radiation better, make jacking cutting tool treat processing axis body uniform force application simultaneously, avoid jacking process generation deflection, avoid the jacking cutting tool shake of trembling, improve stable cutting degree, improve processing endoporus dimensional accuracy, as shown in Figure 2, inside and outside, middle bite 3,2,4 and a point bits bite 5 are evenly distributed on cutter hub 1 end face by circumference equal dividing.Due to outer bite 2 and interior bite 3 for axis body to be processed be axially certain angle of inclination to the axis body application of force to be processed, best inside and outside bite 3,2 is oppositely arranged, middle bite 4 is oppositely arranged with a point bits bite 5, the active force that outer like this bite 2 and interior bite 3 are treated a processing axis body point active force diametrically can be offset, and improves stable cutting degree.
In order further to avoid the jacking cutting tool shake of trembling, improve stable cutting degree, improve processing endoporus dimensional accuracy, as shown in Figure 5 and Figure 6, the drift angle α 2 of the main cutting edge 21 of outer bite 2 equates with the drift angle α 3 of the main cutting edge 31 of interior bite 3, is 5 ~ 30 °; As shown in Figure 7, the cutting edge 41 of middle bite 4 without drift angle, drift angle α 4 is 0 ° in other words; As shown in Figure 8, a point bits bite 5 is provided with single pointed tooth, α 5=β 5=5 ~ 30 °, drift angle of pointed tooth both sides, and the center line of pointed tooth and cutter hub central axes, point bits cutting edge 51 is along the center line symmetry of pointed tooth.As shown in Figure 9 and Figure 10, back angle γ 2, γ 3, γ 4, the γ 5 of interior bite 3, outer bite 2, middle bite 4, point bits bite 5 are 5 ~ 30 °, and cutting anterior angle δ 2, δ 3, δ 4, δ 5 are 1 ~ 10 °; So outer, interior, middle bite 2,3,4 and point bits bite 5 are set, are conducive to reduce cutting force, improve cutting output.
In order to make stable cutting, taking one end away from cutter hub 1 center of each cutting edge radially as benchmark, rake face deflection cutter hub 1 center of each bite is arranged, deviation angle Φ is 2 ~ 30 °, as shown in Figure 2.Chip pocket 7 is preferably crescent, and smear metal can more effectively slip into chip pocket bottom and outwards not trickle down like this.
For fear of the gap between outer wall and the axis body inwall to be processed of smear metal obstruction jacking cutting tool, and then the horsepower requirement of the motor of reduction to driving jacking cutting tool, chip pocket 7 is located at the inwall of cutter hub 1; The mode of chip removal in adopting; Can reduce like this horsepower requirement of the motor to driving jacking cutting tool.The outer wall of cutter hub 1 is provided with cooling passage 12, and cooling passage 12 is communicated to chip area 6 places.
In order to make trepanning tool have enough intensity to overcome the distortion power of axis body to be processed to it, the front end of jacking cutting tool need to have adequate thickness, but the weight of the excessive easy increase jacking cutting tool of jacking cutting tool thickness improves motor driving force.In order to lower the weight of jacking cutting tool, reduce driving force, ensure enough intensity simultaneously, cutter hub 1 outer wall is preferably ladder platform structure, and cutter hub 1 external diameter at one end place at bite place is greater than cutter hub 1 external diameter at the other end place at screw thread 11 places.Cutter hub 1 is also inlaid with guide pad 8, to avoid jacking process generation deflection.
Bite and cutter hub 1 can be monolithic construction.But after wearing and tearing, to be convenient to change bite in order making, to reduce costs, bite and cutter hub 1 are split-type structural, as shown in Figures 2 and 3; Interior bite 3, outer bite 2, middle bite 4 and a point bits bite 5 are respectively fixed on tool rest 10-1,10-2,10-3,10-4 are upper, and tool rest 10-1,10-2,10-3,10-4 are fixed in the tool rest groove 9-1,9-2,9-3,9-4 of cutter hub 1 end face.The fixed form of each bite has upper pressure type, self-locking, elastic compression-type etc., illustrates no longer one by one here.
For more convenient installation inside and outside bite 3,2 wherein, prevent that smear metal is deposited in dead angle simultaneously, reduce the driving force of motor, as depicted in figs. 1 and 2, the tool rest groove 9-1 of corresponding outer bite 2 is located at cutter hub 1 outer wall and end face junction, and outer bite 2 place tool rest 10-1 have the arc-shaped outer surface identical with this side tool body 1 external diameter; In corresponding, the tool rest groove 9-2 of bite 3 is located at cutter hub 1 inwall and end face junction, and the tool rest 10-2 at interior bite 3 places has the arc-shaped inner surface identical with this side tool body 1 internal diameter; In correspondence, tool rest groove 9-3, the 9-4 of bite 4 and point bits bite 5 are located in cutter hub 1 end face.
While selecting bite, preferably selecting each bite is indexable mechanical clamped cutting blade, several cutting edges of each so described bite can use in transposition, not only improve the durability of bite, saved knife bar material, reduced the cost of charp tool, improve production efficiency, be suitable for producing in enormous quantities, and cutting quality is stable, also can contributes to reduce the consumed power of motor.Wherein, for the better work that adapts to jacking cutting tool, middle bite 4 can be selected from the one in T-shaped (equilateral triangle blade), L shaped (rectangle blade), S type (square blade), C type blade (parallelogram blade), point bits bite 5 can be selected from as the one in W type (the protruding triangular blade of positive protrusions) and F type blade (the protruding triangular blade of amesiality projection), and that interior bite 3 can be selected from is T-shaped, L shaped, one in S type, C type blade; Outer bite 2 can be selected from the one in L-type, S type, C type, T-shaped blade.In Fig. 1, interior, domestic and abroad bite 3,4,2 is T-shaped blade, and a point bits bite 5 is W type blade.T-shaped and W type blade has the both sides that contact with each tool rest, stressed more steady therefore can make blade cut time, makes jacking cutting tool smooth working.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a jacking cutting tool, is characterized in that, comprises columnar cutter hub, and cutter hub one end end face is provided with some bites, and the cutter hub other end is provided with the screw thread for connecting, each cutting edge is positioned at the different annular of cutter hub end face, comprise the bite that is positioned at inner side annulus, be arranged in the outer bite and the bite that is positioned at central circular of outside annulus, the main cutting edge of interior bite extends cutter hub inwall in cutter hub end face, and be obliquely installed to the cutter hub other end, the main cutting edge of outer bite extends cutter hub outer wall in cutter hub end face, and be obliquely installed to the cutter hub other end, the main cutting edge of interior bite is all arranged on the annulus of bite place or annulus away from the main cutting edge of cutter hub central shaft one end and outer bite by feed body central shaft one end, cutter hub is provided with the chip area of the rake face that is communicated to each bite, on the pipe shaft circumference of cutter hub, is provided with the chip pocket being communicated with each chip area.
2. jacking cutting tool as claimed in claim 1, is characterized in that, described bite also comprises point bits bite of the central circular that is positioned at described cutter hub end face, and a point bits bite is provided with pointed tooth, and the crown of pointed tooth exceeds the rear knife face of described middle bite.
3. jacking cutting tool as claimed in claim 2, is characterized in that, described inside and outside, middle bite and a point bits bite are evenly distributed on described cutter hub end face by circumference equal dividing; Wherein, inside and outside bite is oppositely arranged, and middle bite is oppositely arranged with a point bits bite.
4. jacking cutting tool as claimed in claim 3, is characterized in that, the drift angle of the main cutting edge of described outer bite equates with the drift angle of the main cutting edge of interior bite; The drift angle of the cutting edge of described middle bite is 0 °, and a point bits bite is provided with single pointed tooth, the center line of pointed tooth and cutter hub central axes, and point bits cutting edge is along the center line symmetry of pointed tooth.
5. jacking cutting tool as claimed in claim 4, is characterized in that, described chip pocket is located at the inwall of described cutter hub; The outer wall of cutter hub is provided with cooling passage, and cooling passage is communicated to described chip area place.
6. jacking cutting tool as claimed in claim 5, is characterized in that, described cutter hub outer wall is ladder platform structure, and the cutter hub external diameter at one end place at described bite place is greater than the cutter hub external diameter at the other end place at described screw thread place; Described cutter hub is also inlaid with guide pad.
7. jacking cutting tool as claimed in claim 6, is characterized in that, described bite and described cutter hub are split-type structural; Described bite is fixed on tool rest, and tool rest is fixed in the tool rest groove of cutter hub end face; Wherein, the tool rest groove of corresponding described outer bite is located at cutter hub outer wall and end face junction, and outer bite place tool rest has the arc-shaped outer surface identical with this side tool body diameter; The tool rest groove of corresponding described interior bite is located at cutter hub inwall and end face junction, and the tool rest at interior bite place has the arc-shaped inner surface identical with this side tool body internal diameter; The tool rest groove of corresponding described middle bite and described point of bits bite is located in cutter hub end face.
8. jacking cutting tool as claimed in claim 7, is characterized in that, described bite is indexable mechanical clamped cutting blade; Wherein, that described middle bite is selected from is T-shaped, L shaped, one in S type, C type blade, and described point of bits bite is selected from the one in W type and F type blade, and that described interior bite is selected from is T-shaped, L shaped, one in S type, C type blade; Described outer bite is selected from the one in L-type, S type, C type, T-shaped blade.
9. jacking cutting tool as claimed in claim 8, is characterized in that, described inside and outside, middle bite is T-shaped blade, and described point of bits bite is W type blade.
10. the jacking cutting tool as described in claim 1 to 9 any one, is characterized in that, described bite taking its one end away from described cutter hub center radially as benchmark, rake face be partial to described cutter hub center arrange, the deviation angle is 2 ~ 3 °; The drift angle of the main cutting edge of described outer bite is 5 ~ 30 °; In, the back angle of domestic and abroad bite and point bits bite is 5 ~ 30 °, cutting anterior angle is 1 ~ 10 °.
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CN201410303719.2A CN104148709A (en) | 2014-06-30 | 2014-06-30 | Trepanning tool |
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CN201410303719.2A CN104148709A (en) | 2014-06-30 | 2014-06-30 | Trepanning tool |
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CN113477990A (en) * | 2021-07-16 | 2021-10-08 | 穆格精密工具(杭州)有限公司 | Automatic pushing mechanism of jacking knife |
CN113798551A (en) * | 2021-09-13 | 2021-12-17 | 江苏华龙铸铁型材有限公司 | Alloy cast iron section bar deep hole jacking processing and forming device and using method thereof |
EP4005713A3 (en) * | 2020-11-18 | 2022-06-08 | Gühring KG | Machining tool for machining plastic |
CN115609030A (en) * | 2022-11-11 | 2023-01-17 | 大连理工大学 | Automatic chip breaking circular blade for ultrasonic cutting of honeycomb core |
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CN105478863A (en) * | 2015-12-18 | 2016-04-13 | 天津卓达管道机械制造有限公司 | Cylindrical cutter for cutting stainless steel pipes |
CN108145215A (en) * | 2016-12-06 | 2018-06-12 | 马学礼 | Energy-efficient trepanning tool |
CN107127379A (en) * | 2017-07-11 | 2017-09-05 | 福州大学 | The deep hole trepanning tool of band point bits guide function |
CN109605584B (en) * | 2018-12-28 | 2024-05-24 | 嘉善佳腾自润滑材料厂 | Graphite column cutting system |
CN109605584A (en) * | 2018-12-28 | 2019-04-12 | 嘉善佳腾自润滑材料厂 | A kind of graphite column diced system |
CN110153472A (en) * | 2019-05-30 | 2019-08-23 | 靖江新源电力器械有限公司 | A kind of trepanning tool structure |
CN110238413A (en) * | 2019-07-22 | 2019-09-17 | 沈阳露天采矿设备制造有限公司 | A kind of device carrying out overlaying processing for mine excavator centerpivot |
CN111644810A (en) * | 2020-05-22 | 2020-09-11 | 吴明伟 | Manufacturing process of U-shaped aluminum pipe |
CN111644669A (en) * | 2020-06-11 | 2020-09-11 | 中国航发航空科技股份有限公司 | Hole digging cutter for machining large-diameter assembly holes of aviation parts |
EP4005713A3 (en) * | 2020-11-18 | 2022-06-08 | Gühring KG | Machining tool for machining plastic |
CN113477990A (en) * | 2021-07-16 | 2021-10-08 | 穆格精密工具(杭州)有限公司 | Automatic pushing mechanism of jacking knife |
CN113477990B (en) * | 2021-07-16 | 2022-04-08 | 穆格精密工具(杭州)有限公司 | Automatic pushing mechanism of jacking knife |
CN113798551A (en) * | 2021-09-13 | 2021-12-17 | 江苏华龙铸铁型材有限公司 | Alloy cast iron section bar deep hole jacking processing and forming device and using method thereof |
CN115609030A (en) * | 2022-11-11 | 2023-01-17 | 大连理工大学 | Automatic chip breaking circular blade for ultrasonic cutting of honeycomb core |
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