CN106312573A - Inverted inner taper hole machining device and machining and detecting method - Google Patents
Inverted inner taper hole machining device and machining and detecting method Download PDFInfo
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- CN106312573A CN106312573A CN201610916285.2A CN201610916285A CN106312573A CN 106312573 A CN106312573 A CN 106312573A CN 201610916285 A CN201610916285 A CN 201610916285A CN 106312573 A CN106312573 A CN 106312573A
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- taper hole
- internal taper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses an inverted inner taper hole machining device and machining and detecting method. The inverted inner taper hole machining device comprises a combined clamp, a customized tool, a grinding taper bar, a customized measuring tool, and a detection taper bar. The combined clamp comprises a plurality of pressing plates, a plurality of pull rods, nuts, a balancing weight, a V-shaped positioning block, supporting blocks and a round foundation plate, wherein the pull rods and the V-shaped positioning block are fixed to the round foundation plate, the V-shaped positioning block is used for clamping and fixing a workpiece, the multiple pressing plates are provided with holes allowing the pull rods to be inserted into, the pressing plates are used for tightly pressing the balancing weight, the workpiece and the supporting blocks, and the nuts are in threaded connection with the pull rods so as to tightly press the pressing plates. The customized tool is used for boring. The taper surface of the grinding taper bar is evenly coated with grinding paste for grinding an inverted inner taper hole. The customized measuring tool is used for measuring the inverted inner taper hole. The detection taper bar is used for detecting the inverted inner taper hole. The invention further provides the inverted inner taper hole machining method. The problems that the machining dimension precision of inverted inner taper holes is difficult to ensure, the surface is rough, the product percent of pass is low, and cost is high are solved.
Description
Technical field
The invention belongs to machining and the detection field in hole, be specifically related to a kind of high accuracy and fall the machining of internal taper hole
And detection method.
Background technology
Taper hole, because having preferably location and quality of fit, generally uses in some peculiar parts.But, for taper hole
There is technical difficulty in the internal taper hole that especially falls in machining, such as, a kind of be positioned at the small-bore of tube side wall, size essence always
Degree require higher fall internal taper hole, because of being limited by processing space, the technological method for processing commonly used, process tool, test measuring device without
Method meets cone hole machine requirement so that Dimension Measurement low precision, and conforming product rate is low.
The processing method of existing a kind of internal taper hole is: makes profile milling cutter, carries out copy milling processing with milling machine.This
There is following problems in processing method: 1) for small-bore, and because cutter is elongated, tool strength is poor, and cutter loss is very fast, and cutter becomes
This height；2) it is not easy to carry out size detection in the course of processing；3) processing taper hole poor dimensional precision, surface roughness is low.In falling
Taper hole another kind processing method is: makes electrospark electrode, carries out galvano-cautery processing with electric spark equipment.This processing method is deposited
In following problems: 1) spark machined inefficiency；2) it is not easy to carry out size detection in the course of processing；3) electrospark electrode
Loss is fast, and accurate to dimension is difficult to control, and surface roughness is low.
Accordingly, it would be desirable to develop a kind of novel internal taper hole processing method, it is desirable to its working (machining) efficiency is high, accurate to dimension
High, roughness is low, processing cost is low.
Summary of the invention
For disadvantages described above or the Improvement requirement of prior art, the present invention provides a kind of processing unit (plant) of falling internal taper hole and processing
Detection method, design customization cutter, built-up jig, grinding cone rod, customization measurer and inspection cone rod, solve internal taper hole this
The tapered bore parts accurate to dimension of special structure form it is difficult to ensure that, rough surface, conforming product rate is low, high the asking of cost
Topic.
For achieving the above object, according to one aspect of the present invention, it is provided that a kind of processing unit (plant) of falling internal taper hole, it includes
Built-up jig, customization cutter, grind cone rod, customization measurer, inspection cone rod, wherein,
Described built-up jig includes pressing plate, pull bar, nut, balancing weight, V-type locating piece, bracer, circular foundation plate, institute
Stating pull bar and described V-type locating piece is fixed on circular foundation plate, described V-type locating piece is used for gripping workpiece,
Described pull bar has multiple, and pressing plate also has multiple, and described pressing plate has perforate, to be interspersed in described pull bar
On, described pressing plate is used for compressing described balancing weight, described workpiece and described bracer,
Described nut is screwed onto when being fixed on pull bar for spiral on described pull bar and is fixed described pressing plate, and then
Realization is fixed described balancing weight, described workpiece and described bracer,
Described balancing weight and described bracer position are adjustable, and so that position is adjusted flexibly as required, described balancing weight is used for
Adjusting barycenter overall after built-up jig fixes workpiece, described bracer is played a supporting role when clamping workpiece,
Described customization cutter is used for bore hole,
Described grinding is bored in the excellent internal taper hole obtained for loading described customization cutter boring to process, the described excellent cone of grinding cone
Uniform application abrasive pastes on face, for the spin finishing inwall of falling internal taper hole,
Measure internal taper hole described in customization measurer,
Inspection cone rod is used for detecting described internal taper hole, to judge whether it meets the requirements.
Further, described customization cutter is barb-shaped, and its cutter head is hook-shaped, and its cutter hub is round bar shape, wherein round bar shape
Cutter hub be divided into again big round rod segment that cross section is bigger and the less roundlet bar segment of cross section,
Customization cutter is utilized and used waste and old solid carbide end mill to be processed by tool grinder,
Its parameter is for including:
Anterior angle γ0: 15 °≤γ0≤20°；
Relief angle a0: 14 °≤a0≤18°；
Corner radius: 0.15mm≤re≤0.25mm。
Further, the described cone rod that grinds is inverted cone, is nodular cast iron for material.
Further, described customization measurer uses the transformation of the way of standard slide calliper rule, and bayonet socket root is cut into groove-like, detecting
Step down during the end diameter of falling internal taper hole, it is to avoid interfere phenomenon, it is thus possible to good, the end diameter of falling internal taper hole is detected.
Further, described inspection cone rod is positive taper, and inspection cone bar matter is alloy tool steel, and its surface is through quenching
Process.
According to another aspect of the present invention, also provide for a kind of side using as above device to carry out the processing of falling internal taper hole detection
Method, it comprises the steps,
S1: preparation customization cutter, described customization cutter utilizes scrap hard alloy milling cutter to change a social system, and customizes cutter parameters
Including:
Anterior angle γ0: 15 °≤γ0≤20°；
Relief angle a0: 14 °≤a0≤18°；
Corner radius re: 0.15mm≤re≤ 0.25mm,
S2: use built-up jig clamping workpiece, and by the deployed dynamic balancing of balancing weight, carry out down inner cone at numerically controlled lathe
Hole machined,
The excircle board of the circular foundation plate of S3: numerically controlled lathe three-jaw clamping built-up jig, numerical control programming boring processing inner cone
Hole, Cutting Parameters is:
Cutting speed v:50m/min≤v≤60m/min
Cutting depth ap: 0.2mm≤ap≤0.3mm
Amount of feeding f:0.05mm/r≤f≤0.1mm/r,
S4: use and customize to fall described in gage measuring internal taper hole,
S5: grinding uniform application abrasive pastes on the cone rod conical surface, grinding cone rod is being loaded workpiece and falls in internal taper hole, drilling machine bores
Cone rod staight shank is ground in chuck clamping, adjusts workpiece orientation and fixes, and drill press spindle rotary speed is set as 50r/min～60r/
Min, carries out precise finiss to workpiece internal taper hole,
S6: to coat a plurality of thickness be 0.1 μm～the pigment of 0.3 μm in inspection cone rod element of cone direction, then with grinding
The rear conical surface of falling internal taper hole is in close contact, and holds inspection cone bat handle, takes off after rotating 20 °～30 °, if inspection cone rod uniform coloring
Illustrate that the tapering of falling internal taper hole is qualified.
Further, in step S6, it is 0.1 μm～0.3 μm at inspection cone rod three thickness of element of cone direction coating
Red lead powder, to carry out tapering detection.
In general, by the contemplated above technical scheme of the present invention compared with prior art, it is possible to show under acquirement
Benefit effect:
The built-up jig of the present invention uses circular foundation plate, in conjunction with V-type locating piece and pressing plate, pull bar, nut, workpiece is solid
Tightly, make customization cutter, utilize numerical control workshop to fall internal taper hole, use customization measurer that the end diameter of falling internal taper hole is carried out directly
Connect measurement, utilize and grind cone rod precise finiss further and fall internal taper hole, use inspection cone rod to carry out falling internal taper hole after grinding
Color detects.Cutter structure of the present invention design and material selection are ingenious rationally, select suitable cutting parameter, and coordinate lapping mode,
Preferably solve the accurate little accurate to dimension of falling internal taper hole problem；By using customization measurer and special tapering purchase inspection gauge, relatively
Solve well little internal taper hole directly to measure and comprehensive detection.
Accompanying drawing explanation
Fig. 1 is the structural representation of the built-up jig of the processing unit (plant) of falling internal taper hole in the embodiment of the present invention；
Fig. 2 is the structural representation that the present invention needs to process taper hole workpiece；
Fig. 3 (a) is the customization cutter structure schematic diagram of the processing unit (plant) of falling internal taper hole in the embodiment of the present invention；
Fig. 3 (b) is the enlarged drawing being labeled as " I " place of customization cutter in Fig. 3 (a)；
Fig. 3 (c) is A-A face profile in Fig. 3 (a)；
Fig. 3 (d) is B-B face profile in Fig. 3 (a)；
Fig. 4 is the grinding rod structural representation of the processing unit (plant) of falling internal taper hole in the embodiment of the present invention；
Fig. 5 (a) is the customization measurer structural representation of the processing unit (plant) of falling internal taper hole in the embodiment of the present invention；
Fig. 5 (b) is the enlarged drawing in Fig. 5 (a) at circles mark；
Fig. 6 is the inspection cone bar structure schematic diagram of the processing unit (plant) of falling internal taper hole in the embodiment of the present invention.
In all of the figs, identical reference is used for representing identical element or structure, wherein:
Pressing plate 1, pull bar 2, nut 3, balancing weight 4, workpiece 5, V-type locating piece 6, a bracer 7, circular foundation plate 8, customization cutter
Tool 9, grind cone rod 10, customization measurer 11, inspection cone rod 12,5.1 fall internal taper hole.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.If additionally, technical characteristic involved in each embodiment of invention described below
The conflict of not constituting each other just can be mutually combined.
Fig. 1 is the structural representation of the built-up jig of the processing unit (plant) of falling internal taper hole in the embodiment of the present invention, as seen from the figure, falls
Internal taper hole processing unit (plant) includes pressing plate 1, pull bar 2, nut 3, balancing weight 4, V-type locating piece 6, bracer 7 and circular foundation plate
8。
As shown in fig. 1, built-up jig is installed V-type locating piece 6, balancing weight 4 and a bracer 7, V on circular foundation plate 8
Type locating piece 6 is used for gripping workpiece 5, and pull bar 2 is fixed on circular foundation plate 8, and pull bar 2 has multiple, and pressing plate 1 also has
Multiple, described pressing plate 1 has perforate, to be interspersed on described pull bar 2, described pressing plate 1 is used for compressing described balancing weight 4, institute
Stating workpiece 5 and described bracer 7, described nut 3 is screwed onto when being fixed on pull bar 2 for spiral on described pull bar 2 and presses
Fasten described pressing plate 1, and then realize being fixed described balancing weight 4, described workpiece 5 and described bracer 7, described counterweight
Block 4 and described bracer 7 position are adjustable, and so that position is adjusted flexibly as required, it is solid that described balancing weight 4 is used for adjusting built-up jig
Barycenter overall after determining workpiece 5, described bracer 7 is played a supporting role when clamping workpiece 5.In actual clamping process,
Adjust internal taper hole 5.1 to be processed so that it is axle center and circular foundation plate 8 center superposition, pressing plate 1 is adjacent to workpiece 5, screws spiral shell
Female 3 clamping platens thus workpiece 5 is fastened.
Wherein, described balancing weight is to be designed by three-dimensional modeling, according to centroid motion value after built-up jig assembling workpiece,
Manufacture the balancing weight of given configuration size and weight demands, it is ensured that after assembling, overall barycenter is on circular foundation plate disc axis,
Such design so that Work piece high-speed rotates to add and has preferable dynamic balancing man-hour, operates steadily.Further, it is also possible to guarantee counterweight
Block one side is adjacent to workpiece end face, axially positions workpiece.
Fig. 2 is the structural representation that the present invention needs to process taper hole workpiece, and as seen from the figure, its body is tubulose, at tubulose
There is on outer wall two stretched out internal taper hole 5.1.Should fall internal taper hole be divided into circular hole portion and taper hole section, taper hole section outside, circular hole
Section is near tubular body.
Fig. 3 (a) is the customization cutter structure schematic diagram of the processing unit (plant) of falling internal taper hole in the embodiment of the present invention；Fig. 3 (b) is figure
The enlarged drawing being labeled as " I " place of customization cutter in 3 (a), as seen from the figure, its point of a knife has circular arc；Fig. 3 (c) is in Fig. 3 (a)
A-A face profile；Fig. 3 (d) is B-B face profile in Fig. 3 (a), and as seen from the figure, customization cutter 9 uses " barb-shaped " special knot
Structure, its cutter head is hook-shaped, and its cutter hub is round bar shape, and wherein the cutter hub of round bar shape is divided into again the big round rod segment and horizontal stroke that cross section is bigger
The roundlet bar segment that cross section is less.Customization cutter 9 shape, size can preferably meet the workpiece boring of falling internal taper hole processing request, customize cutter
Tool is a nonstandard self-control cutter, gathers materials on the spot, and utilizes and used waste and old solid carbide end mill to be processed by tool grinder
Forming, cost is relatively low.Owing to customization cutter 9 utilizes scrap hard alloy milling cutter to change a social system, its parameter is different from universal cutter,
Comprising:
Anterior angle γ0: 15 °≤γ0≤20°；
Relief angle a0: 14 °≤a0≤18°；
Corner radius: 0.15mm≤re≤0.25mm。
Fig. 4 is the grinding rod structural representation of the processing unit (plant) of falling internal taper hole in the embodiment of the present invention, falls for improving further
Internal taper hole 5.1 dimensional accuracy, patent of the present invention is according to according to internal taper hole 5.1 construction features and dimensional requirement, it is provided that such as Fig. 4 institute
Show grinding cone rod 10, grind cone rod 10 and use cast iron bar to process.Have employed grinding cone rod 10, to combine abrasive pastes the most smart
Internal taper hole 5.1 is fallen in close grinding, improves cone match precision and surface roughness.
In one embodiment of the invention, grind cone bar material and use nodular cast iron, there is higher-strength, the most tough
Property, there is tiny holes processing rear surface, can preferable volume abrasive pastes, grinding effect is good；Grind cone rod according to the shape of falling internal taper hole
Size and meet processing request, is designed to inverted cone-shaped structure, after male cone (strobilus masculinus) is by machinery Precision Machining, has degree of precision, falls
Internal taper hole has higher tapering dimensional accuracy and surface roughness by grinding to bore after rod combines abrasive pastes grinding.
Fig. 5 (a) is the customization measurer structural representation of the processing unit (plant) of falling internal taper hole in the embodiment of the present invention；Fig. 5 (b) is figure
Enlarged drawing at circles mark in 5 (a), falls internal taper hole 5.1 internal diameter size testing requirement for meeting, and patent of the present invention is interior according to falling
Taper hole 5.1 construction features and dimensional requirement, it is provided that customization measurer 11 as shown in Figure 5, customization measurer 11 uses standard slide calliper rule to carry out
The suitably transformation of the way, meets and directly measures the end diameter of falling internal taper hole.Concrete, described customization measurer is to use normal tour
Mark slide calliper rule carry out the adaptability transformation of the way, bayonet socket root is cut into groove-like, can step down, it is to avoid send out during the detection end diameter of falling internal taper hole
Raw interference, can preferably detect the end diameter of falling internal taper hole, and this transformation of the way does not reduce the former accuracy value of slide gauge.
Fig. 6 is the inspection cone bar structure schematic diagram of the processing unit (plant) of falling internal taper hole in the embodiment of the present invention, as seen from the figure, is full
Foot internal taper hole 5.1 tapering size testing requirement, patent of the present invention is according to internal taper hole 5.1 dimensional requirement, it is provided that as shown in Figure 6
Inspection cone rod 12, utilizes red lead powder to carry out coloration detection to falling internal taper hole 5.1 after grinding, and inspection cone rod coloring can be wiped uniformly
Go, it is achieved the tapering of the aperture of falling inner cone is detected.
In one embodiment of the invention, described excellent 12 materials of inspection cone use alloy tool steel, surface hardening, tool
Higher hardness, wearability, inspection cone rod is had according to the geomery of falling internal taper hole and to meet testing requirement, be designed to positive taper knot
Structure, after male cone (strobilus masculinus) is by machinery Precision Machining, has degree of precision, and internal taper hole uses dye penetrant inspection by inspection cone rod, right
Conical surface precision carries out qualified judgement inspection.
The process using the processing unit (plant) of the falling internal taper hole clamping workpiece 5 of the present invention is as follows:
Use built-up jig circular foundation plate 8 clamping, built-up jig circular foundation plate 8 is installed V-type locating piece 6, counterweight
Block 4, workpiece 5 is fixed on V-type locating piece 6, adjusts internal taper hole 5.1 to be processed so that it is axle center and circular foundation plate 8 center
Overlap, balancing weight 4 is adjacent to workpiece 5, with pressing plate 1, pull bar 2, nut 3, workpiece 5 is fastened.
By the deployed dynamic balancing of balancing weight 4, carry out, at numerically controlled lathe, the processing of falling internal taper hole.Adding man-hour, numerically controlled lathe
Three-jaw clamping built-up jig circular foundation plate 8 cylindrical, numerical control programming boring processing internal taper hole 5.1.
The processing unit (plant) of falling internal taper hole using the present invention carries out the method for the processing of falling internal taper hole and detection and includes walking as follows
Rapid:
S1: according to the construction features of falling internal taper hole and dimensional requirement, makes customization cutter, and customization cutter utilizes waste and old hard to close
Gold milling cutter is changed a social system, and customization cutter parameters includes:
Anterior angle γ0: 15 °≤γ0≤20°；
Relief angle a0: 14 °≤a0≤18°；
Corner radius: 0.15mm≤re≤0.25mm。
S2: use built-up jig clamping, and by the deployed dynamic balancing of balancing weight, carry out down internal taper hole at numerically controlled lathe and add
Work.Installing V-type locating piece, balancing weight on built-up jig circular foundation plate, workpiece is fixed on V-type locating piece, adjusts to be added
Work falls internal taper hole so that it is axle center and circular foundation plate center superposition, balancing weight is adjacent to workpiece, with pressing plate, pull bar, nut by work
Part fastens.
S3: numerically controlled lathe three-jaw clamping built-up jig circular foundation plate cylindrical, numerical control programming boring processing internal taper hole.Cutting
Machined parameters is:
Cutting speed: 50m/min≤v≤60m/min；
Cutting depth: 0.2mm≤ap≤0.3mm；
The amount of feeding: 0.05mm/r≤f≤0.1mm/r.
S4: according to the construction features of falling internal taper hole and dimensional requirement, makes customization measurer, and customization measurer uses standard vernier calliper
Chi carries out adapting to the transformation of the way, slide gauge inner measuring jaw root is cut into opening shape (groove-like), it is to avoid straight to the small end of falling internal taper hole
Footpath measurement interferes, it is simple to directly measure the end diameter of falling internal taper hole.
S5: according to the construction features of falling internal taper hole and dimensional requirement, makes and grinds cone rod, grinds cone rod and uses nodular cast iron rod
Process.Grinding uniform application abrasive pastes on the cone rod conical surface, grinding cone rod loads workpiece and falls in internal taper hole, drill chuck of drilling machine
Cone rod staight shank is ground in clamping, adjusts workpiece orientation and fixes, and drill press spindle rotary speed is set as 50r/min～60r/min,
Workpiece internal taper hole is carried out precise finiss, improves the tapering of falling internal taper hole precision and surface roughness further.
S6: according to the dimensional requirement of falling internal taper hole, makes inspection cone rod, coats three thickness in inspection cone rod element of cone direction
Degree is 0.1 μm～the red lead powder of 0.3 μm, then with grind after the conical surface of falling internal taper hole be in close contact, hold inspection cone bat handle, rotation
Take off after 20 °～30 °, if the inspection cone rod uniform coloring explanation tapering of falling internal taper hole is qualified.
The technical process that employing numerically controlled lathe carries out the processing of falling internal taper hole in the process of the present invention is as follows:
1) clamping workpiece centering；
2) drill bit prebored hole is used；
3) with standard internal turning tool bore hole；
4) with standard internal turning tool car male cone (strobilus masculinus)；
5) fall internal taper hole 5.1 with customization cutter 9 car, carry out small end size with customization measurer 11 and directly measure；
6) combine the further precise finiss of abrasive pastes and fall internal taper hole 5.1 conical surface with grinding cone rod 10；
7) with inspection cone rod 12 by coloration detection, inspection cone rod coloring can be wiped uniformly, examines conical surface precision
Survey；
8) workpiece tune turn-over clamping centering, processes another and falls internal taper hole；
9) drill bit prebored hole is used；
10) with standard internal turning tool bore hole；
11) with standard internal turning tool car male cone (strobilus masculinus)；
12) fall internal taper hole 5.1 with customization cutter 9 car, carry out small end size with customization measurer 11 and directly measure；
13) combine the further precise finiss of abrasive pastes and fall internal taper hole 5.1 conical surface with grinding cone rod 10；
14) with inspection cone rod 12 by coloration detection, inspection cone rod coloring can be wiped uniformly, examines conical surface precision
Survey.
So far, complete two fall internal taper hole processing.
The built-up jig of the present invention uses circular foundation plate, in conjunction with V-type locating piece and pressing plate, pull bar, nut, workpiece is solid
Tightly, make customization cutter, utilize numerical control workshop to fall internal taper hole, use customization measurer that the end diameter of falling internal taper hole is carried out directly
Connect measurement, utilize and grind cone rod precise finiss further and fall internal taper hole, use inspection cone rod to carry out falling internal taper hole after grinding
Color detects.Cutter structure of the present invention design and material selection are ingenious rationally, select suitable cutting parameter, and coordinate lapping mode,
Preferably solve the accurate little accurate to dimension of falling internal taper hole problem；By using customization measurer and special tapering purchase inspection gauge, relatively
Solve well little internal taper hole directly to measure and comprehensive detection.
As it will be easily appreciated by one skilled in the art that and the foregoing is only presently preferred embodiments of the present invention, not in order to
Limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, all should comprise
Within protection scope of the present invention.
Claims (7)
1. the processing unit (plant) of falling internal taper hole, it is characterised in that it includes built-up jig, customization cutter (9), grinds cone rod
(10), customization measurer (11), inspection cone rod (12), wherein,
Described built-up jig include pressing plate (1), pull bar (2), nut (3), balancing weight (4), V-type locating piece (6), bracer (7),
Circular foundation plate (8), described pull bar (2) and described V-type locating piece (6) are fixed on circular foundation plate (6), described V-type locating piece
(6) it is used for gripping workpiece (5),
Described pull bar (2) has multiple, and pressing plate (1) also has multiple, and described pressing plate has perforate on (1), described to be interspersed in
On pull bar (2), described pressing plate (1) is used for compressing described balancing weight (4), described workpiece (5) and described bracer (7),
Described nut (3) is screwed onto on described pull bar (2) when being fixed on pull bar (2) for spiral and is fixed described pressing plate
(1), and then realize being fixed described balancing weight (4), described workpiece (5) and described bracer (7),
Described balancing weight (4) and described bracer (7) position are adjustable, so that position is adjusted flexibly as required, and described balancing weight (4)
Fixing, for adjusting built-up jig, the barycenter that workpiece (5) is overall afterwards, described bracer (7) is played when clamping workpiece (5) and is propped up
Support effect,
Described customization cutter (9) is used for bore hole,
Described grinding cone excellent (10) is used for loading in the internal taper hole that described customization cutter (8) boring processing obtains, and described grinding is bored
Uniform application abrasive pastes on rod (10) conical surface, for the spin finishing inwall of falling internal taper hole,
Internal taper hole is fallen in customization measurer (11) described measurement,
Inspection cone rod (12) is used for detecting described internal taper hole, to judge whether it meets the requirements.
2. a kind of processing unit (plant) of falling internal taper hole as claimed in claim 1, it is characterised in that described customization cutter (9) is barb
Shape, its cutter head is hook-shaped, and its cutter hub is round bar shape, and wherein the cutter hub of round bar shape is divided into again the big round rod segment and horizontal stroke that cross section is bigger
The roundlet bar segment that cross section is less,
Customization cutter (9) is utilized and used waste and old solid carbide end mill to be processed by tool grinder, and its parameter is bag
Include:
Anterior angle γ0: 15 °≤γ0≤20°；
Relief angle a0: 14 °≤a0≤18°；
Corner radius: 0.15mm≤re≤0.25mm。
3. a kind of processing unit (plant) of falling internal taper hole as claimed in claim 1 or 2, it is characterised in that described grinding cone rod (10) is
Inverted cone, is nodular cast iron for material.
4. a kind of processing unit (plant) of falling internal taper hole as claimed in claim 3, it is characterised in that described customization measurer (11) uses mark
Quasi-slide calliper rule are changed a social system, and bayonet socket root is cut into groove-like, can step down when detecting the end diameter of falling internal taper hole, it is to avoid interfere
Phenomenon, detects it is thus possible to good the end diameter of falling internal taper hole.
5. a kind of processing unit (plant) of falling internal taper hole as claimed in claim 3, it is characterised in that described inspection cone rod (12) is positive cone
Shape, inspection cone rod (12) material is alloy tool steel, and its surface is through Quenching Treatment.
6. one kind uses the method that device as described in one of claim 1-5 carries out the processing of falling internal taper hole detection, it is characterised in that
It comprises the steps,
S1: preparation customization cutter (9), described customization cutter utilizes scrap hard alloy milling cutter to change a social system, and customizes cutter parameters
Including:
Anterior angle γ0: 15 °≤γ0≤20°；
Relief angle a0: 14 °≤a0≤18°；
Corner radius re: 0.15mm≤re≤ 0.25mm,
S2: use built-up jig clamping workpiece (5), and by the deployed dynamic balancing of balancing weight, carry out down inner cone at numerically controlled lathe
Hole machined,
The excircle board of the circular foundation plate of S3: numerically controlled lathe three-jaw clamping built-up jig, numerical control programming boring processing internal taper hole, cut
Cutting machined parameters is:
Cutting speed v:50m/min≤v≤60m/min
Cutting depth ap: 0.2mm≤ap≤0.3mm
Amount of feeding f:0.05mm/r≤f≤0.1mm/r,
S4: use customization measurer (11) to measure described internal taper hole,
S5: grinding uniform application abrasive pastes on cone rod (10) conical surface, grinding cone rod is being loaded workpiece and falls in internal taper hole, drilling machine bores
Cone rod staight shank is ground in chuck clamping, adjusts workpiece orientation and fixes, and drill press spindle rotary speed is set as 50r/min～60r/
Min, carries out precise finiss to workpiece internal taper hole,
S6: to coat a plurality of thickness be 0.1 μm～the pigment of 0.3 μm in inspection cone rod (12) element of cone direction, then with grinding
The rear conical surface of falling internal taper hole is in close contact, and holds inspection cone bat handle, takes off after rotating 20 °～30 °, if inspection cone rod uniform coloring
Illustrate that the tapering of falling internal taper hole is qualified.
7. method as claimed in claim 6, it is characterised in that in step S6, in inspection cone rod element of cone direction coating three
Bar thickness is 0.1 μm～the red lead powder of 0.3 μm, to carry out tapering detection.
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| CN113909600A (en) * | 2021-10-09 | 2022-01-11 | 中国航发北京航空材料研究院 | Quality evaluation method for turbine blade electrosparking gas film hole |
| CN117516312A (en) * | 2024-01-08 | 2024-02-06 | 成都乘风阀门有限责任公司 | Vernier caliper for online measurement of cock conical surface and measuring method |
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| CN106312573B (en) | 2018-09-28 |
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