CN208613926U - A kind of process tool of semiclosed chamber stepped hole - Google Patents
A kind of process tool of semiclosed chamber stepped hole Download PDFInfo
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- CN208613926U CN208613926U CN201821189525.4U CN201821189525U CN208613926U CN 208613926 U CN208613926 U CN 208613926U CN 201821189525 U CN201821189525 U CN 201821189525U CN 208613926 U CN208613926 U CN 208613926U
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- cutter head
- knife bar
- hole
- chamber
- stepped hole
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Abstract
The utility model discloses a kind of process tools of semiclosed chamber stepped hole, including knife bar (8) and the cutter head by being fixed on knife bar one end (1), the inner hole (7) for being passed through coolant liquid is arranged in the axial direction of the knife bar, the cutter head has multiple, the radius of clean-up of each cutter head is different, the cutter head for selecting different radiuss of clean-up is needed to connect with the knife bar according to cutting, the same size screw thread for connecting with the knife bar is arranged in each cutter head, and the cutter head includes the multiple blade parts (2) for being set to head peripheral and the cooling hole portion (3) for flowing out coolant liquid, the chamber (5) for being passed through coolant liquid is arranged in the axial direction of the cutter head, the cooling hole portion is connected with the chamber, when the cutter head and knife bar are connected as one, the chamber of the cutter head is connected to integrally with the inner hole of the knife bar.The utility model structure is simple, and processing method is practical, high in machining efficiency, processing quality is good, is able to solve the problem of semiclosed chamber stepped hole class formation processing difficulties.
Description
Technical field
The utility model relates to a kind of process tool for machining, especially a kind of semiclosed chamber stepped hole class knot
The process tool of structure.
Background technique
Semiclosed chamber stepped hole, that is, smaller inner hole in aperture is larger, the open special cavity of inner hole end face part.Such as Fig. 1 institute
Showing, is the typical part structure of semiclosed chamber stepped hole, this kind of part exit orifice A is small, and inner hole B is big, and hole bottom cavity C is semiclosed, and
Hole depth usually is out the international standard vibration damping knife bar range of work, and universal cutter can not be processed in place, and difficulty of processing is big.
Semiclosed chamber stepped hole class formation is generally welded type or fabricated construction, while mitigating part quality as far as possible
Guarantee part strength and realize its function, the structure is widely used on the undercarriage of aircraft.But as aircraft is to rising and falling
The raising of frame performance and life requirements, this class formation are designed to independent part, and as carry-on part, to material
There is special requirement.Such as titanium alloy T C18M, this material belongs to a kind of transitional alloy, has intensity height, medium temperature performance good, resistance to
The advantages that higher toughness of burn into and plasticity, but its thermal coefficient is small (only 1/6 or so of 45 steel), and elasticity modulus is small (about
The 1/2 of 45 steel) and chemical activity height, Tensile strength is not less than 1280Mpa, intensity height, good toughness, easily burn.It is comprehensive with
The structure of upper analysis, semiclosed chamber stepped hole is special, the difficult processing of material, and application requirement is very high on board the aircraft, therefore
Very high requirement is proposed to technique, the difficulty of machining greatly improves.
The processing method of semiclosed chamber stepped hole, the first is electrical discharge machining, subdrilling bottom outlet, then uses electrical fire flower process
Inboard macropore is processed, but part is bad in electrical discharge machining rear surface quality, and electrical fire flower process has spy to part material attribute
It is different to require, uncertain burn can be generated to part；Second is to bore the form that bore hole combines using tradition, this is traditional work
Skill scheme presss from both sides part outer circle, bores bottom outlet with long drill bit, removes stepped hole surplus with vibration reducing boring cutter, but due to too long, the knife bar that overhangs
Intensity is insufficient, and cutting force is larger, and shaking in process, knife is serious, and cutter easily wears and scraps, even if after processing, part
Surface tool marks are deeper, also do not meet design requirement；When hole depth is more than noiseless alloy turning tool rod length range, then it is difficult to ensure that hole
Quality, when the intracavitary bore dia of step is more much bigger than outer bore dia, and depth is deeper, then can not using Boring Bar boring plus
Work process.
Utility model content
In order to solve the problems, such as semiclosed chamber stepped hole class formation processing difficulties, the utility model provides a kind of semiclosed
The structure novel of the process tool of chamber stepped hole, the process tool is practical, and processing method is easy to operate, high in machining efficiency, and adds
Work part it is high-quality.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of semiclosed chamber stepped hole plus
Work cutter, including knife bar and the cutter head by being fixed on knife bar one end, the axial of the knife bar is arranged for being passed through coolant liquid
Inner hole, the cutter head have multiple, and the radius of clean-up of each cutter head is different, needs to select the knife of different radiuss of clean-up according to cutting
Head is connect with the knife bar, and the same size screw thread for connecting with the knife bar is arranged in each cutter head, and the cutter head includes
Multiple blade parts of head peripheral and the cooling hole portion for flowing out coolant liquid are set to, the axial of the cutter head is arranged for leading to
Entering the chamber of coolant liquid, the cooling hole portion is connected with the chamber, when the cutter head is connected as one with knife bar, the cutter head
Chamber be connected to integrally with the inner hole of the knife bar.
The further improvement of above scheme is that the cutter head is cylinder step structure, which includes being equipped with
The big cylinder of the blade part and small column for being fixedly connected with the knife bar.
The further improvement of above scheme is that the internal thread hole for being connected and fixed cutter head is arranged in one end of the knife bar,
And the inner hole of the knife bar is connected to the internal thread hole, the small column periphery of the cutter head is equipped with external thread part, the cutter head
The internal thread hole of external thread part and the knife bar be connected and fixed.
The further improvement of above scheme is that the inner hole runs through the knife bar, (is needed with facilitating with common numerically-controlled machine tool
With interior cold function) connection.
The further improvement of above scheme is that the cooling hole portion is arranged on the blade part, so that blade part can be more preferable
Ground is cooled down.
The utility model knife bar is that hollow structure is used to supply coolant liquid to cutter head, and one end band internal thread hole is used for fixing cutter
Head, it is general collet to be adapted to numerically-controlled machine tool cold in different band that knife bar, which clamps one end,；The cutting edge of cutter head is in side edge top, knife
Head is internal the elongated hole (chamber) for leading to blade part surface from small column fixing end, for flowing out coolant liquid cooling knife in processing
Head cutting edge.
In order to adapt to process different size of step chamber, the knife bar thread parameter fixed with cutter head is fixed, can be passed through
Different size of cutter head is replaced, different size of stepped hole is processed.Special blade is selected, processes difficult to machine material, as above
State the special blade of middle titanic alloy machining.
Compared with prior art, the utility model has the beneficial effects that
1. knife bar design scheme is simple, manufacturing process is mature；
2. cutter head can customize, the matching cutter head of the parts information model towards different kind of material, replacement is convenient；
3. cutter head is to be threadedly coupled, blade nearby has cooling liquid outlet, and coolant liquid can be made to reach knife in deep hole processing
Sword position；
4. the processing method using the utility model is simple, high-efficient, processing part quality is good；
5. having reference in the processing of semiclosed step chamber using the processing method of the utility model.
Detailed description of the invention
Fig. 1 is the typical part structure chart of semiclosed chamber stepped hole.
Fig. 2 is the structural schematic diagram of the utility model process tool.
Fig. 3 is the part drawing for processing bottom outlet.
Fig. 4 is the structural schematic diagram that the utility model knife bar protrudes into part bottom outlet.
Fig. 5 is that the utility model process tool prepares the structural schematic diagram for starting to process inner hole.
Fig. 6 is the structural schematic diagram that stepped hole is processed using the utility model process tool.
Specific embodiment
As shown in Fig. 2, a kind of one embodiment of process tool of semiclosed chamber stepped hole of the utility model includes knife bar 8 and leads to
Cross the cutter head 1 for being threadedly coupled and being fixed on knife bar 8.Knife bar 8 includes internal thread hole 6 for fixing cutter head 1 and cold for being passed through
But the inner hole 7 of liquid, and inner hole 7 is connected to respect to the axial setting of knife bar 8, and through knife bar 8 with internal thread hole 6.Cutter head 1 includes
Process multiple blade parts 2 of part, the multiple cooling hole portions 3 for flowing out coolant liquid, the external thread part for being connected and fixed with knife bar 8
4, it is passed through the chamber 5 of coolant liquid, and the cooling setting of hole portion 3, on blade part 2, chamber 5 is arranged with respect to the axial of cutter head 1, chamber 5 and cooling
Hole portion 3 is connected, and when cutter head 1 is connected and fixed with knife bar 8, chamber 5 is connected to integrally with inner hole 7.Cutter head 1 can have it is multiple, and
The outer diameter of multiple cutter heads 1 is sequentially arranged from small to large, but 4 size of external thread part of each cutter head 1 is identical, so as to same knife bar 8
Internal thread hole 6 be connected to a fixed.
To process semiclosed chamber stepped hole as shown in Figure 1, the utility model uses process tool knot as shown in Figure 2
Structure, specific processing method are as described below:
1. the part of the semiclosed chamber of clamping band bores bottom outlet in part unprocessed hole location, as shown in Figure 3；
2. the knife bar 8 for the cutter for processing semiclosed chamber stepped hole is fixed on lathe tool apron, control lathe tool apron makes knife
Bar 8 protrudes into inside bottom outlet along the bottom outlet being drilled, until passing through bottom outlet, as shown in Figure 4；
3. hand-held cutter head 1 is put into part from semiclosed chamber, and the internal thread hole 6 of itself and knife bar 8 is tightened, cutter head 1 is checked
Whether safety is fixed on knife bar 8, as shown in Figure 5；
4. starting to process semiclosed chamber stepped hole, cooling device is opened, coolant liquid should be sprayed from the cooling hole portion 3 of cutter head 1,
Control 8 reverse drawing cutter head 1 of knife bar towards movement outside, as shown in Figure 6；
5. control knife bar 8 exits stepped hole, lower cutter head 1 is unloaded, replaces the cutter head 1 being relatively large in diameter, repeats step 3 and step 4,
Until stepped hole is worked into desired size.
The semiclosed chamber stepped hole of the utility model above method processing is easy to operate, easy to process, can effectively improve production
Quality.
Claims (5)
1. a kind of process tool of semiclosed chamber stepped hole, including knife bar (8) and the cutter head by being fixed on knife bar one end (1),
It is characterized in that, the inner hole (7) for being passed through coolant liquid is arranged in the axial direction of the knife bar, the cutter head has multiple, each knife
The radius of clean-up of head is different, needs the cutter head for selecting different radiuss of clean-up to connect with the knife bar according to cutting, each cutter head is set
The same size screw thread for connecting with the knife bar is set, and the cutter head includes the multiple blade parts for being set to head peripheral
(2) and the cooling hole portion (3) for flowing out coolant liquid, the axial chamber (5) being arranged for being passed through coolant liquid of the cutter head are described
Cooling hole portion is connected with the chamber, when the cutter head is connected as one with knife bar, the chamber of the cutter head and the knife bar
Inner hole connection is integral.
2. a kind of process tool of semiclosed chamber stepped hole according to claim 1, which is characterized in that the cutter head is circle
Pylon stage structure, the cylinder step structure include the big cylinder equipped with the blade part and the roundlet for connecting with the knife bar
Column.
3. a kind of process tool of semiclosed chamber stepped hole according to claim 2, which is characterized in that the one of the knife bar
The internal thread hole (6) for being connected and fixed cutter head is arranged in end, and the inner hole of the knife bar is connected to the internal thread hole, the knife
The small column periphery of head is equipped with external thread part (4), and the external thread part of the cutter head and the internal thread hole of the knife bar are connected and fixed.
4. a kind of process tool of semiclosed chamber stepped hole according to claim 1, which is characterized in that the inner hole runs through
The knife bar.
5. a kind of process tool of semiclosed chamber stepped hole according to claim 1, which is characterized in that on the blade part
The cooling hole portion (3) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821189525.4U CN208613926U (en) | 2018-07-26 | 2018-07-26 | A kind of process tool of semiclosed chamber stepped hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821189525.4U CN208613926U (en) | 2018-07-26 | 2018-07-26 | A kind of process tool of semiclosed chamber stepped hole |
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| Publication Number | Publication Date |
|---|---|
| CN208613926U true CN208613926U (en) | 2019-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821189525.4U Active CN208613926U (en) | 2018-07-26 | 2018-07-26 | A kind of process tool of semiclosed chamber stepped hole |
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| CN (1) | CN208613926U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110090975A (en) * | 2019-05-18 | 2019-08-06 | 山西汾西重工有限责任公司 | The cutting tool for boring of interchangeable bit for machining small diameter with step circular hole inner cavity |
-
2018
- 2018-07-26 CN CN201821189525.4U patent/CN208613926U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110090975A (en) * | 2019-05-18 | 2019-08-06 | 山西汾西重工有限责任公司 | The cutting tool for boring of interchangeable bit for machining small diameter with step circular hole inner cavity |
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