CN207013813U - A kind of ultra dense tooth inner hole forming device - Google Patents
A kind of ultra dense tooth inner hole forming device Download PDFInfo
- Publication number
- CN207013813U CN207013813U CN201720476627.3U CN201720476627U CN207013813U CN 207013813 U CN207013813 U CN 207013813U CN 201720476627 U CN201720476627 U CN 201720476627U CN 207013813 U CN207013813 U CN 207013813U
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- China
- Prior art keywords
- cutterhead
- knife
- handle
- forming device
- inner hole
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Abstract
The utility model discloses a kind of ultra dense tooth inner hole forming device, including handle of a knife, the cutterhead being installed on handle of a knife and the positioning table for positioning part to be processed, the first end of the handle of a knife is provided with the handle of a knife connecting rod being connected with machine tool chief axis, second end of the handle of a knife is provided with the cutterhead mounting head fixed with cutterhead, the periphery of the cutterhead is provided with cutter tooth, also include the guiding mandrel on positioning table, the guiding mandrel include big footpath positioning section and connect with big footpath positioning section and diameter be less than big footpath positioning section path guide section, it is enclosed in the big footpath positioning section in the centre bore of part to be processed, the center of the cutterhead is provided with is oriented to the pilot hole coordinated with path guide section, the center of the cutterhead mounting head is provided with the middle cavity for inserting path guide section.The technical solution adopted in the utility model, it is not in uneven, deformation to make processed flute profile, meets technical requirements and the production efficiency requirement of product.
Description
Technical field
It the utility model is related to mechanical manufacturing technology, and in particular to ultra dense perforation forming technique.
Background technology
In new product development trial-production production, the flute profile groove that ultra dense degree is designed with some hole in piece part is frequently encountered, is such as existed
Internal diameter is the rake tooth type groove that 190mm inner bore of step Surface Machining goes out 540, long 45mm, deep 0.3mm, and the distribution of tooth belongs to
Ultra dense degree.The product material is HT250 grey cast-irons, and working position is in inner bore of step surface, and the quantity of tooth is so more, one
As traditional machining processes be difficult to process, the flute profile of processing can uneven, deformation, can not meet technical requirements and the life of product
Produce efficiency requirements.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of ultra dense tooth inner hole forming device, avoids processing
Flute profile is uneven, deformation.
In order to solve the above technical problems, the utility model adopts the following technical scheme that：A kind of ultra dense tooth inner hole forming device,
Including handle of a knife, the cutterhead being installed on handle of a knife and positioning table for positioning part to be processed, the first end of the handle of a knife is set
There is the handle of a knife connecting rod being connected with machine tool chief axis, the second end of the handle of a knife is provided with the cutterhead mounting head fixed with cutterhead, described
The periphery of cutterhead is provided with cutter tooth, in addition to the guiding mandrel on positioning table, the guiding mandrel include big footpath positioning section and
Connect with big footpath positioning section and diameter is less than the path guide section of big footpath positioning section, be enclosed on processed zero in the big footpath positioning section
In the centre bore of part, the center of the cutterhead is provided with is oriented to the pilot hole coordinated with path guide section, the cutterhead mounting head
Center is provided with the middle cavity for inserting path guide section.
Preferably, the cutterhead is positioned on cutterhead installation end surface and fixed by screw and cutterhead mounting head.
Preferably, the material of the cutterhead is W18Cr4V and cutter tooth carries out surface coated treatment.
Preferably, the primary clearance of the cutter tooth and side relief angle are 3 °~5 °, and anterior angle is 0 °.
Preferably, the material of the handle of a knife is 40Cr, and hardness is HRC43~48 after heat-treatment quenching.
Preferably, the material of the guiding mandrel is 20CrMnTi, and be heat-treated carburizing and quenching after hardness be HRC58~
63。
The technical solution adopted in the utility model, according to the machining shape of part to be processed, positioning method, set and be oriented to the heart
Axle, the guiding mandrel one end position the datum hole of part to be processed, one end positioning cutterhead pilot hole, rise and guide to centering function,
Make push broach center line and work piece Central of the parts line on the same axis, cutter traffic direction will not run-off the straight.Therefore, quilt
The flute profile of processing is not in uneven, deformation, or even damages the situation of cutter, and the technical requirements and production for meeting product are imitated
Rate requirement.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and detailed description：
Fig. 1 is the fit structure schematic diagram of push broach and guiding mandrel；
Fig. 2 is the structural representation of the utility model in the operating condition.
Embodiment
The utility model is according to the technical characterstic of part to be processed：Diameter is big, ultra dense degree tooth, tooth depth is shallower, has step
Hole, cutting force is little, devises a kind of ultra dense tooth inner hole forming device, can be pushed away on vertical broaching machine or common hydraulic press
Pressure processing, the product quality processed are stable.
The technical scheme of the utility model embodiment is explained with reference to the accompanying drawing of the utility model embodiment and
Illustrate, but following embodiments are only preferred embodiment of the present utility model, and it is not all.Based on the embodiment in embodiment,
Those skilled in the art obtain other embodiment on the premise of creative work is not made, and belong to of the present utility model
Protection domain.
A kind of ultra dense tooth inner hole forming device as depicted in figs. 1 and 2, including push broach and guiding mandrel, push broach include knife
Handle 1, the cutterhead 2 being installed on handle of a knife 1 and the positioning table 4 for positioning part to be processed 5, the first end of the handle of a knife 1 are set
There is the handle of a knife connecting rod 12 being connected with machine tool chief axis, the second end of the handle of a knife is provided with the cutterhead mounting head 11 fixed with cutterhead 2,
Handle of a knife 1 is provided with transition axis 13 between handle of a knife connecting rod 12 and cutterhead mounting head 11, and the periphery of the cutterhead 2 is provided with cutter tooth 21.
The key that push broach correctly works is that its center line must be with the center line of part to be processed on the same axis, cutter
Traffic direction must not tilt.Therefore, the utility model is also provided with guiding mandrel 3, and guiding mandrel 3 includes the big He of footpath positioning section 32
Connect with big footpath positioning section 32 and diameter is less than the path guide section 31 of big footpath positioning section 32, one end positioning quilt of apotting spindle 3
The datum hole of part is processed, other end positions the pilot hole of cutterhead, plays guiding to centering function, specifically, big footpath positioning
It is enclosed in section 32 in the centre bore of part to be processed, the center of cutterhead is provided with is oriented to the pilot hole coordinated with path guide section, together
When cutterhead mounting head center be provided with make path guide section insert middle cavity 22, pilot centering work(is drawn by guiding mandrel 3
Can, push broach center line is correctly worked in same axis, guiding push broach with work piece Central of the parts line.Therefore, it is processed
Flute profile is not in uneven, deformation, or even damages the situation of cutter, and the technical requirements and production efficiency for meeting product will
Ask.
Wherein, in the selection of material, the material 20CrMnTi of guiding mandrel 3, heat treatment carburizing and quenching HRC58~63.Knife
The material of handle 1 is 40Cr, heat-treatment quenching HRC43~48.The material of cutterhead 2 is W18Cr4V and cutter tooth carries out surface coated treatment.
Cutterhead 2 is positioned on cutterhead installation end surface and fixed by screw and cutterhead mounting head 11, convenient to pacify installation and dismantling
Unload.Double annealing processing must be carried out after the blank of cutterhead 2 is forged, then is machined, cutter tooth primary clearance and side relief angle are equal
For 3 °~5 °, 0 ° of anterior angle, cutter tooth heat-treatment quenching HRC65~70, after finishing, cutter tooth position is both needed to carry out at face coat
Reason.Therefore cutter tooth has higher hardness and toughness, and combination property is good, and due to the suitable push broach parameter of optimum choice and
Working process parameter, pushing processing can be carried out on vertical broaching machine or common hydraulic press, the product quality processed is stable.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, it is familiar with the those skilled in the art and should be understood that the utility model includes but is not limited to accompanying drawing and above specific embodiment party
Content described in formula.Any modification without departing from function and structure principle of the present utility model is intended to be included in claims
Scope in.
Claims (6)
1. a kind of ultra dense tooth inner hole forming device, including handle of a knife, the cutterhead that is installed on handle of a knife and for positioning processed zero
The positioning table of part, the first end of the handle of a knife are provided with the handle of a knife connecting rod being connected with machine tool chief axis, and the second end of the handle of a knife is set
There is the cutterhead mounting head fixed with cutterhead, the periphery of the cutterhead is provided with cutter tooth, it is characterised in that：Also include on positioning table
Guiding mandrel, the guiding mandrel includes big footpath positioning section and connects with big footpath positioning section and diameter is less than big footpath positioning section
Path guide section, it is enclosed in the centre bore of part to be processed in the big footpath positioning section, the center of the cutterhead is provided with and path
Guide section is oriented to the pilot hole coordinated, and the center of the cutterhead mounting head is provided with the middle cavity for inserting path guide section.
A kind of 2. ultra dense tooth inner hole forming device according to claim 1, it is characterised in that：The cutterhead is positioned at cutterhead
Fixed on installation end surface and by screw and cutterhead mounting head.
A kind of 3. ultra dense tooth inner hole forming device according to claim 1, it is characterised in that：The material of the cutterhead is
W18Cr4V and cutter tooth progress surface coated treatment.
A kind of 4. ultra dense tooth inner hole forming device according to claim 3, it is characterised in that：The primary clearance of the cutter tooth and
Side relief angle is 3 °~5 °, and anterior angle is 0 °.
A kind of 5. ultra dense tooth inner hole forming device according to Claims 1-4 any one, it is characterised in that：The knife
The material of handle is 40Cr, and hardness is HRC43~48 after heat-treatment quenching.
A kind of 6. ultra dense tooth inner hole forming device according to claim 1, it is characterised in that：The material of the guiding mandrel
For 20CrMnTi, and hardness is HRC58~63 after being heat-treated carburizing and quenching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720476627.3U CN207013813U (en) | 2017-04-28 | 2017-04-28 | A kind of ultra dense tooth inner hole forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720476627.3U CN207013813U (en) | 2017-04-28 | 2017-04-28 | A kind of ultra dense tooth inner hole forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207013813U true CN207013813U (en) | 2018-02-16 |
Family
ID=61460855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720476627.3U Active CN207013813U (en) | 2017-04-28 | 2017-04-28 | A kind of ultra dense tooth inner hole forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207013813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113592955A (en) * | 2021-07-27 | 2021-11-02 | 中国科学院西安光学精密机械研究所 | Circular workpiece plane coordinate high-precision positioning method based on machine vision |
-
2017
- 2017-04-28 CN CN201720476627.3U patent/CN207013813U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113592955A (en) * | 2021-07-27 | 2021-11-02 | 中国科学院西安光学精密机械研究所 | Circular workpiece plane coordinate high-precision positioning method based on machine vision |
| CN113592955B (en) * | 2021-07-27 | 2024-04-09 | 中国科学院西安光学精密机械研究所 | Round workpiece plane coordinate high-precision positioning method based on machine vision |
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