CN208245945U - A kind of bionical load shedding broaching tool of combined type - Google Patents
A kind of bionical load shedding broaching tool of combined type Download PDFInfo
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- CN208245945U CN208245945U CN201820677759.7U CN201820677759U CN208245945U CN 208245945 U CN208245945 U CN 208245945U CN 201820677759 U CN201820677759 U CN 201820677759U CN 208245945 U CN208245945 U CN 208245945U
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- helical teeth
- sword
- broaching
- concave texture
- teeth sword
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Abstract
The utility model discloses a kind of bionical load shedding broaching tools of combined type.Existing broaching tool uses horizontally taking type, and chip is liable to stick among the pit of every section of between cog.Four lands of the utility model near knife handle and four lands farthest away from knife handle are straight-tooth sword, remaining land is helical teeth sword；Adjacent inclined teeth sword inclined direction is opposite；Adjacent inclined teeth sword inclined direction is opposite；Two triangular groove groups or raindrop shape groove are opened up on each flank block after being separated on helical teeth sword by concave texture slot.The utility model uses cable-stayed type, reduces broaching load, and chip is made to be not easy to be attached in concave texture slot.
Description
Technical field
The utility model belongs to broaching tool technical field, and in particular to a kind of bionical load shedding broaching tool of combined type.
Background technique
With the development of Modern Manufacturing Industry, broaching tool processes the application of the key components and parts such as aircraft industry, car industry increasingly
Extensively.And existing load is larger during broaching, bits friction is larger for knife-work-, be also easy to produce built-up edge and abrasion be not easy it is real-time
The problems such as detection is always the difficult point in wire pulling method process precise treatment, high efficiency and intelligent realization, and how exploratory development is new
The broaching cutters of type configuration reduces broaching load, reduces the fretting wear of broaching tool, improves the reliability of broaching process, is broaching
One of project urgently to be resolved in processing industry.Therefore, a kind of broaching for reducing cutting load, anti abrasive new configurations is developed
Cutter has great significance to the development of broaching cutters industry.The service life for increasing the cutter that machining manufacture uses seems
It is particularly important.
Currently, keyway broach is all made of the mode of horizontal drawing, and there was only a small number of bionical texture broaching tools and preparation in related fields
Method has reduction slightly for broaching load, but chip is liable to stick among the pit of every section of between cog, and the time, which has been grown, to be easy
Blade is damaged, cutter life is reduced, and after broaching, since flow harden chip is attached on broaching tool, is not easy clear
Reason, there is very big defects.
Summary of the invention
There are rubbing between knife-work-bits, larger, land is easy to wear in the process for the broaching of existing broaching tool for the utility model,
The defects of service life is shorter provides a kind of novel texture broaching tool of bionical load shedding of combined type, which is equipped with helical teeth sword, and rear
Knife face, which has, is further added by triangle on the basis of imitative shell surface pattern texture or imitative shell surface pattern texture or raindrop shape is recessed
Slot reduces the frictional resistance between broaching tool and workpiece, improves the wear-resisting and heat-transfer effect of broaching tool.
A kind of bionical load shedding broaching tool of combined type of the utility model, including knife handle, near four lands and most of knife handle
Four lands far from knife handle are straight-tooth sword, remaining land is helical teeth sword；The folder of each helical teeth sword length direction and broaching direction
Angle is k, and 28 °≤k≤33 °, but adjacent inclined teeth sword inclined direction is opposite；The identical two neighboring helical teeth sword of inclined direction is ipsilateral
Side 16~18mm of spacing.The two sides of the bottom of straight-tooth sword and helical teeth sword are rounded down.
All helical teeth sword flanks of one of inclined direction are equipped with the first concave texture slot group, another inclination side
To all helical teeth sword flanks be equipped with the second concave texture slot group；The first concave texture slot group includes along helical teeth sword
Four concave texture slots of length direction equidistant placement, the second concave texture slot group includes along helical teeth sword length direction etc.
Three concave texture slots away from arrangement；The length direction of concave texture slot is consistent with broaching direction.
Two triangular groove groups are opened up on each flank block after being separated on helical teeth sword by concave texture slot, two
Triangular groove group is along 2~3mm of helical teeth sword length direction spacing；The triangular groove group includes along the broaching equidistant cloth in direction
Three set or four triangular grooves；The a line of triangular groove is vertical with broaching direction.
Raindrop shape groove is opened up on each flank block after being separated on helical teeth sword by concave texture slot；The raindrop shape
The cross-sectional shape of groove includes circular arc, two straight lines of equal length and two connection arcs；Two straight line one end endpoints are overlapped,
Two straight line other ends are separately connected by two connection arcs with circular arc both ends are connect；The angle value range of two straight lines is
30 °, arc radius is 1.5~2mm；Circular arc portion direction is contrary with broaching.
The utility model has the beneficial effects that
1, broaching layout is modified to the way of contact from point to surface, is reduced by the utility model by the way of oblique pull
Broaching load, and improve broaching efficiency；And oblique pull makes chip be not easy to be attached in concave texture slot.
2, the utility model is from bionics angle, by the analysis to shell surface pattern, it is found that it has preferably
Wear-resisting property.By imitating the concave-convex rule of shell surface, concave texture slot is opened up, and the concave that adjacent inclined teeth sword opens up is knitted
Flute is not exactly the same, reduces the load in cutting process according to broaching progress, reduces the friction between knife-work-bits, prevent from accumulating
The generation of bits knurl achievees the purpose that improve broaching tool reliability and service life.Concave texture slot not only substantially reduces load, while making to cut
It considers attachment surface to be worth doing to increase, chip accelerates cooling, is convenient to clean chip.
3, the triangular groove of the utility model not only acts as the effect for storing a small amount of cutting fluid, to reduce land and work
Frictional resistance between part, while accelerating the heat dissipation of machined part.Raindrop shape groove can not only store more cutting fluids, and
And chip is made to be not easy to be attached in flank.
Detailed description of the invention
Fig. 1 is the structural perspective of the utility model；
Fig. 2 is structural schematic diagram when the utility model only opens up concave texture slot；
Fig. 3 is the partial enlarged view in Fig. 2 at A；
Fig. 4 is structural schematic diagram when the utility model opens up concave texture slot and triangular groove；
Fig. 5 is the partial enlarged view in Fig. 4 at B；
Fig. 6 is the structural schematic diagram that the utility model opens up concave texture slot and raindrop shape groove；
Fig. 7 is the partial enlarged view in Fig. 6 at C.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Figure 1, a kind of bionical load shedding broaching tool of combined type, near four lands of knife handle and farthest away from knife handle
Four lands are straight-tooth sword, remaining land is helical teeth sword；Each helical teeth sword length direction and the angle in broaching direction are k, and 28 °
≤ k≤33 ° (in the present embodiment k=30 °), but adjacent inclined teeth sword inclined direction is on the contrary, form V-arrangement；The identical phase of inclined direction
Adjacent two helical teeth sword 16~18mm of ipsilateral side spacing (17.3mm is taken in the present embodiment).The two sides of the bottom of straight-tooth sword and helical teeth sword
It is rounded down.
Below in different embodiments, helical teeth sword flank is equipped with the first concave texture slot group and the second concave texture slot
Group, or it is equipped with the first concave texture slot group, the second concave texture slot group and triangular groove, or be equipped with the first concave texture slot
Group, the second concave texture slot group and raindrop shape groove.
Embodiment 1
As shown in Figures 2 and 3, all helical teeth sword flanks of one of inclined direction are equipped with the first concave texture slot
Group, all helical teeth sword flanks of another inclined direction are equipped with the second concave texture slot group；First concave texture slot group packet
Four concave texture slots along helical teeth sword length direction equidistant placement are included, the second concave texture slot group includes along helical teeth sword length side
To three concave texture slots of equidistant placement；The length direction of concave texture slot is consistent with broaching direction.Concave texture slot is not only
Substantially reduce load, while increase chip attachment surface, chip accelerates cooling, is convenient to clean chip.
Embodiment 2
As shown in Figures 2 and 3, all helical teeth sword flanks of one of inclined direction are equipped with the first concave texture slot
Group, all helical teeth sword flanks of another inclined direction are equipped with the second concave texture slot group；First concave texture slot group packet
Four concave texture slots along helical teeth sword length direction equidistant placement are included, the second concave texture slot group includes along helical teeth sword length side
To three concave texture slots of equidistant placement；The length direction of concave texture slot is consistent with broaching direction.
As shown in Figure 4 and Figure 5, two three are opened up on each flank block after being separated on helical teeth sword by concave texture slot
Angular groove group, two triangular groove groups are along 2~3mm of helical teeth sword length direction spacing (being 2mm in the present embodiment)；Triangle
Groove group includes three or four triangular grooves along broaching direction equidistant placement；The a line of triangular groove and broaching side
To vertical；Triangular groove not only acts as the effect for storing a small amount of cutting fluid, to reduce the friction resistance between land and workpiece
Power, while accelerating the heat dissipation of machined part.
Embodiment 3
As shown in Figures 2 and 3, all helical teeth sword flanks of one of inclined direction are equipped with the first concave texture slot
Group, all helical teeth sword flanks of another inclined direction are equipped with the second concave texture slot group；First concave texture slot group packet
Four concave texture slots along helical teeth sword length direction equidistant placement are included, the second concave texture slot group includes along helical teeth sword length side
To three concave texture slots of equidistant placement；The length direction of concave texture slot is consistent with broaching direction.
As shown in Figure 6 and Figure 7, raindrop shape is opened up on each flank block after being separated on helical teeth sword by concave texture slot
Groove；The cross-sectional shape of raindrop shape groove includes circular arc, two straight lines of equal length and two connection arcs；Two straight lines one
Endpoint is held to be overlapped, two straight line other ends are separately connected by two connection arcs with circular arc both ends are connect；The angle of two straight lines
Value range is 30 °, and arc radius is 1.5~2mm (2mm is taken in the present embodiment)；Circular arc portion direction is contrary with broaching；
Raindrop shape groove can not only store more cutting fluids, and chip is made to be not easy to be attached in flank.
Claims (3)
1. a kind of bionical load shedding broaching tool of combined type, including knife handle, it is characterised in that: near four lands of knife handle and farthest
Four lands from knife handle are straight-tooth sword, remaining land is helical teeth sword；The angle of each helical teeth sword length direction and broaching direction
It is k, 28 °≤k≤33 °, but adjacent inclined teeth sword inclined direction is opposite；The identical two neighboring ipsilateral side of helical teeth sword of inclined direction
16~18mm of interplanar distance；The two sides of the bottom of straight-tooth sword and helical teeth sword are rounded down；
All helical teeth sword flanks of one of inclined direction are equipped with the first concave texture slot group, another inclined direction
All helical teeth sword flanks are equipped with the second concave texture slot group；The first concave texture slot group includes along helical teeth sword length
Four concave texture slots of direction equidistant placement, the second concave texture slot group includes along the equidistant cloth of helical teeth sword length direction
The three concave texture slots set；The length direction of concave texture slot is consistent with broaching direction.
2. the bionical load shedding broaching tool of a kind of combined type according to claim 1, it is characterised in that: by concave texture on helical teeth sword
Two triangular groove groups are opened up on each flank block after slot separation, two triangular groove groups are along helical teeth sword length side
To 2~3mm of spacing；The triangular groove group includes three or four triangular grooves along broaching direction equidistant placement；
The a line of triangular groove is vertical with broaching direction.
3. the bionical load shedding broaching tool of a kind of combined type according to claim 1, it is characterised in that: by concave texture on helical teeth sword
Raindrop shape groove is opened up on each flank block after slot separation；The cross-sectional shape of the raindrop shape groove include circular arc,
Two straight lines of equal length and two connection arcs；Two straight line one end endpoints are overlapped, and two straight line other ends pass through two companies
It connects arc and is separately connected with circular arc both ends are connect；The angle value range of two straight lines is 30 °, and arc radius is 1.5~2mm；Circle
Arc is partially toward contrary with broaching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820677759.7U CN208245945U (en) | 2018-05-08 | 2018-05-08 | A kind of bionical load shedding broaching tool of combined type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820677759.7U CN208245945U (en) | 2018-05-08 | 2018-05-08 | A kind of bionical load shedding broaching tool of combined type |
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| CN208245945U true CN208245945U (en) | 2018-12-18 |
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| CN201820677759.7U Active CN208245945U (en) | 2018-05-08 | 2018-05-08 | A kind of bionical load shedding broaching tool of combined type |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102819A (en) * | 2019-04-29 | 2019-08-09 | 杭州电子科技大学 | The micro-structure keyway broach and preparation method thereof on imitative dung beetle elytrum surface |
| CN113305353A (en) * | 2021-06-11 | 2021-08-27 | 哈尔滨理工大学 | Broach based on tooth configuration and arrangement mode of shells and preparation method thereof |
-
2018
- 2018-05-08 CN CN201820677759.7U patent/CN208245945U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102819A (en) * | 2019-04-29 | 2019-08-09 | 杭州电子科技大学 | The micro-structure keyway broach and preparation method thereof on imitative dung beetle elytrum surface |
| CN110102819B (en) * | 2019-04-29 | 2020-04-07 | 杭州电子科技大学 | Molossi beetle fin surface-imitated micro-structure key slot broach and preparation method thereof |
| CN113305353A (en) * | 2021-06-11 | 2021-08-27 | 哈尔滨理工大学 | Broach based on tooth configuration and arrangement mode of shells and preparation method thereof |
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