CN206415682U - A kind of dedicated tool for the complicated hole system processing of large scale housing high accuracy - Google Patents
A kind of dedicated tool for the complicated hole system processing of large scale housing high accuracy Download PDFInfo
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- CN206415682U CN206415682U CN201621151071.2U CN201621151071U CN206415682U CN 206415682 U CN206415682 U CN 206415682U CN 201621151071 U CN201621151071 U CN 201621151071U CN 206415682 U CN206415682 U CN 206415682U
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Abstract
The utility model belongs to dedicated tool technical field, and in particular to a kind of dedicated tool for the complicated hole system processing of large scale housing high accuracy.The utility model includes main holes machining tool and eccentric aperture knife tool；Main holes machining tool includes handle of a knife and blade, and handle of a knife and blade are by being welded to connect；Eccentric aperture knife tool has 2 cutters tooth by the way of the welding-on blade on cutter hub on every parting tool sword.The utility model ensure that crudy and improve stock-removing efficiency, can apply the processing in the complicated hole system of high accuracy of the various complicated large scale profile housings of multiple model product servos.
Description
Technical field
The utility model belongs to dedicated tool technical field, and in particular to one kind is used for the complicated hole of large scale housing high accuracy
It is the dedicated tool of processing.
Background technology
Booster head shell is key structure part and stressed member in CZ-7 models, and its dimensions is big, and overall length is
447.5mm, cylindrical maximum is φ 210mm, and its hole system is more, and each hole size and form and position tolerance required precision are high, because of housing profile
Greatly, it is complicated, if using traditional general Vehicle Processing shoulder hole system, being also easy to produce in process and getting rid of pendulum and pattern can not be ensured and wanted
Ask, the processing efficiency of traditional fitter thread mill drilling is low, need frequently to change the thread tap of thread cutting machine manually, positioning easily occur inclined
Oblique phenomenon, easily occurs scuffing and taper hole phenomenon during deep hole processing and can not meet pattern requirement, is the difficult point of servo processing, seriously
Constrain the development and production of model.
The content of the invention
Present invention solves the technical problem that：In view of the shortcomings of the prior art, the utility model provides a kind of for large scale
The dedicated tool of the complicated hole system processing of housing high accuracy, ensure that crudy and improves stock-removing efficiency, can apply many
The processing of the complicated hole system of high accuracy of the individual various complicated large scale profile housings of model product servo.
The technical solution adopted by the present invention：
A kind of dedicated tool for the complicated hole system processing of large scale housing high accuracy, including main holes machining tool and partially
Heart aperture knife tool；Main holes machining tool includes handle of a knife and blade, and handle of a knife and blade are by being welded to connect；Eccentric hole machined knife
Tool has 2 cutters tooth by the way of the welding-on blade on cutter hub on every parting tool sword.
In the main holes machining tool, handle of a knife 1 selects hard alloy material, the clamping position that handle of a knife 1 is connected with lathe
For SK40.
In the main holes machining tool, there is the selection of blade 2 PCD composite sheets to be used as matrix.
The geometric parameter of the main holes machining tool is：Anterior angle γ0=30 °~42 °；Relief angle γ0=30 °~42 °；It is main
Drift angle kr=91 °~94 °；Front clearance α '0=12 °~14 °；Auxiliary angle kr'=3 °~5 °；Cutting edge inclination λs=4 °~6 °；Point of a knife is justified
Arc R=0.2；Blade width 2mm.
In the eccentric aperture knife tool, blade uses Hardmetal materials, and cutter hub and handle of a knife use high-speed steel material.
The eccentric aperture knife tool is provided with center Nei Leng holes.
The technical parameter of the eccentric aperture knife tool is：Anterior angle γ0=5 °~12 °；Relief angle α0=6 °~8 °；Front clearanceAuxiliary angle125 ° of sharp angle.
Beneficial effects of the present invention：
The utility model provides a kind of dedicated tool for the complicated hole system processing of large scale housing high accuracy, ensure that
Crudy and raising stock-removing efficiency, eliminate influence of the Milling Machining knife mark to housing seal, once hand over inspection qualification rate significantly
Be promoted to 95% and more than, and reduce manufacturing procedure, reach being substantially improved for the quality of production and efficiency.It can apply many
The processing of the complicated hole system of high accuracy of the individual various complicated large scale profile housings of model product servo.
Brief description of the drawings
Fig. 1 is the main aperture structural representation of head shell；
Fig. 2 is main holes machining tool structural representation；
Fig. 3 is main holes machining tool geometric parameter schematic diagram；
Fig. 4 is eccentric orfice structural representation；
Fig. 5 is eccentric aperture knife tool structural representation.
In figure：1- handle of a knifes, 2- blades,
Embodiment
It is multiple in high precision that the one kind provided below in conjunction with the accompanying drawings with specific embodiment the utility model is used for large scale housing
The dedicated tool of miscellaneous hole system processing is described in further detail.
A kind of dedicated tool for the complicated hole system processing of large scale housing high accuracy that the utility model is provided, including master
Holes machining tool and eccentric aperture knife tool；
It is as shown in Figure 1 processing main aperture system seal groove, main holes machining tool is used to process main aperture system seal groove, such as Fig. 2
Shown, main holes machining tool includes handle of a knife 1 and blade 2, and handle of a knife 1 and blade 2 are by being welded to connect.
(1) handle of a knife 1：
The material of handle of a knife 1：Handle of a knife selects hard alloy material, is due to that it has very high wearability, heat resistance, processed
Friction and cutting temperature that will not be because of chip in journey be higher and cause tool wear and deformation.
Linearity that handle of a knife 1 must have and enough intensity are with balanced cutting moment of torsion, and axiality is not between blade at two
Obtain and changed in working angles.
The clamping position that handle of a knife is connected with lathe is SK40.
(2) blade 2：
The material of blade 2：PCD (polycrystalline diamond) composite sheet of selection with extreme hardness and unique mechanical performance is used as base
Body.
PCD composite sheets are to be sintered to form at high temperature under high pressure by the mixture of diamond particles and catalyst, are being synthesized
Diamond particles commensal is generated in journey, and connection " bridge " is set up between diamond particles, so as to obtain with catalysis
Agent island structure, similar to the PCD material of overall diamond.
Edge structure is designed：Blade anterior angle γ0For 36 °, under the premise of ensureing that tool strength is rigid, there are enough chip faces
Product, is easy to chip removal.
Cutting edge is balanced：Milling cutter is acted in cutting by radial component and main cutting force, and 4 sword structures cause reamer to put down
Weigh stress, and cutter is not susceptible to beat in working angles.
The type of cooling：Cutter carries center Nei Leng holes, using the unobstructed chip removal of flow velocity of cutting oil, chip is deposited in row
Extruding hole wall causes that hole wall is scratched or cutter torque is excessive causes tool failure in bits groove.
(3) tool geometrical parameter：
As shown in figure 3, profile milling cutter geometric parameter includes anterior angle γ0, relief angle α0, tool cutting edge angle κr, auxiliary angleFront clearanceTool arc R and cutting edge inclination λs。
Wherein：Anterior angle γ0=30 °~42 °；Relief angle α0=10 °~18 °；Tool cutting edge angle kr=91 °~94 °；Front clearance α '0=
12 °~14 °；Auxiliary angle kr'=3 °~5 °；Cutting edge inclination λs=4 °~6 °；Tool arc R=0.2；Blade width 2mm.
Eccentric pore structure is illustrated in figure 4, is related to significant dimensions at 2,Kong HeHole, whereinHole at 238mm positions, the knife bar length of existing cutter do not meet processing request, it is necessary to which external coordination welding is lengthened
Knife bar, on the one hand adds processing cost, on the other hand, and the knife bar of cutter itself is very thin, and processing intensity is poor, easily causes cutter
Vibration and bending, it is impossible to ensure pattern requirement.
As shown in figure 5, eccentric aperture knife tool is used to process eccentric pore structure, eccentric aperture knife tool is used on cutter hub
There are 2 cutters tooth on the mode of welding-on blade, every parting tool sword,
Blade uses Hardmetal materials, and cutter hub and handle of a knife use high-speed steel material.
(1) the material selection of handle of a knife and cutter hub：High-speed steel is usually the structural alloy steel containing elements such as W, Cr, V, is had
Higher hardness and redhardneas, after being made annealing treatment, it is possible to decrease steel hardness, increases toughness, is not as handle of a knife and cutter hub
It can fracture or split because bearing stronger moment of torsion.
(2) the material selection of blade：Using material of the hard alloy as blade, hard alloy have hardness it is high, wear-resisting,
Intensity and a series of premium properties such as toughness is preferable, heat-resisting, corrosion-resistant, still have very high hardness, to protect when 500 DEG C
The requirement of the batch machining and dimensional accuracy of part is demonstrate,proved, is set in using the method for welding on cutter hub.
(3) type of cooling：Cutter carries center Nei Leng holes, utilizes the usual chip removal of flow velocity of cutting oil, it is to avoid chip is accumulated
Hole wall is extruded in chip area and causes that hole wall is scratched or cutter torque is excessive causes tool failure.
The technical parameter of eccentric aperture knife tool：
Anterior angle γ0=5 °~12 °；Relief angle α0=6 °~8 °；Front clearanceAuxiliary angle
125 ° of sharp angle.
Claims (5)
1. a kind of dedicated tool for the complicated hole system processing of large scale housing high accuracy, it is characterised in that：Including main aperture, system adds
Work cutter and eccentric aperture knife tool；Main holes machining tool includes handle of a knife (1) and blade (2), and handle of a knife (1) and blade (2) are logical
Cross and be welded to connect；Eccentric aperture knife tool has 2 cutters tooth by the way of the welding-on blade on cutter hub on every parting tool sword；Institute
State in main holes machining tool, handle of a knife 1 selects hard alloy material, the clamping position that handle of a knife 1 is connected with lathe is SK40；It is described
The technical parameter of eccentric aperture knife tool is：Anterior angle γ0=5 °~12 °；Relief angle α0=6 °~8 °；Front clearance
Auxiliary angle125 ° of sharp angle.
2. a kind of dedicated tool for the complicated hole system processing of large scale housing high accuracy according to claim 1, it is special
Levy and be：In the main holes machining tool, there is the selection of blade 2 PCD composite sheets to be used as matrix.
3. a kind of dedicated tool for the complicated hole system processing of large scale housing high accuracy according to claim 2, it is special
Levy and be：The geometric parameter of the main holes machining tool is：Anterior angle γ0=30 °~42 °；Relief angle γ0=30 °~42 °；It is main inclined
Angle kr=91 °~94 °；Front clearance α '0=12 °~14 °；Auxiliary angle kr'=3 °~5 °；Cutting edge inclination λs=4 °~6 °；Tool arc
R=0.2；Blade width 2mm.
4. a kind of dedicated tool for the complicated hole system processing of large scale housing high accuracy according to claim 1, it is special
Levy and be：In the eccentric aperture knife tool, blade uses Hardmetal materials, and cutter hub and handle of a knife use high-speed steel material.
5. a kind of dedicated tool for the complicated hole system processing of large scale housing high accuracy according to claim 1, it is special
Levy and be：The eccentric aperture knife tool is provided with center Nei Leng holes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621151071.2U CN206415682U (en) | 2016-10-31 | 2016-10-31 | A kind of dedicated tool for the complicated hole system processing of large scale housing high accuracy |
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| CN201621151071.2U CN206415682U (en) | 2016-10-31 | 2016-10-31 | A kind of dedicated tool for the complicated hole system processing of large scale housing high accuracy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109500439A (en) * | 2018-11-29 | 2019-03-22 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of stainless steel casing deep cavity shape slot high-efficiency milling process tool and method |
-
2016
- 2016-10-31 CN CN201621151071.2U patent/CN206415682U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109500439A (en) * | 2018-11-29 | 2019-03-22 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of stainless steel casing deep cavity shape slot high-efficiency milling process tool and method |
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