CN106736683A - A kind of positioning fixture and application method for the processing of hot investment casting part - Google Patents
A kind of positioning fixture and application method for the processing of hot investment casting part Download PDFInfo
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- CN106736683A CN106736683A CN201611153849.8A CN201611153849A CN106736683A CN 106736683 A CN106736683 A CN 106736683A CN 201611153849 A CN201611153849 A CN 201611153849A CN 106736683 A CN106736683 A CN 106736683A
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- Prior art keywords
- rectangle
- hole
- inspecting
- rectangular
- cabinet
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Classifications
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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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The present invention relates to a kind of positioning fixture and application method for the processing of hot investment casting part, step is as follows：By in 12 positioning locating slots on specific four raised locating pieces of locating clip in totally 12 raised correspondence insertion cabinet B faces casings, the specific bottom surface of locating clip is fitted with case box B faces, it is placed on and post-processing A C two sides is clamped on sleeping milling machine, change to again and D faces are processed on end mill, in face of processing B, the cutter that chisel will be visited successively is placed in the specific rectangle inspecting hole I of locating clip, rectangle inspecting hole II, in two rectangle inspecting holes III, chisel handle is visited with hammer, make cabinet left wall, mesospore, right wall leaves the cut marking, then pull down locating clip specific, respectively with left wall reference side wall, mesospore reference side wall, right wall reference side wall compares, how the machining benchmark in analysis B faces offsets.Technologist designs processing scheme by observing stamp positions, it is ensured that the control errors after cabinet processing improve processing efficiency in the reasonable scope.
Description
Technical field
The present invention relates to a kind of special machine positioning clamp for machining, more particularly to a kind of positioning for the processing of hot investment casting part
Fixture and application method, the positioning before being finished for hot investment casting cabinet.
Background technology
I considers processing cost problem by company's model cabinet, and hot investment casting, the size of hot investment casting are changed to by machining
Uniformity is difficult to ensure that each fur cabinet will design different processing schemes in process, because casting size becomes
Change than larger, so the datum level for finding cabinet is very tired, many situations are that requirement each cabinet is carried out to knife on milling machine, seeks chi again
It is very little, changed in processing, and also technologist and operating personnel pay close attention to the machining state of each cabinet the moment, and it is such to add
Work efficiency rate is very low bothersome laborious.
The content of the invention
In view of the situation of prior art, being processed for hot investment casting part for processing efficiency is improved the invention provides a kind of
Positioning fixture and application method.
In order to accurately find out whether position of the milling machine when inner chamber is processed coincide with positioning datum, technologist is facilitated to add
Accurate processing scheme is made before work, rectangle inspecting hole I, II, two rectangles of rectangle inspecting hole are particularly outputed in locating clip
Inspecting hole III, before processing technologist's simulating cutting process using with cutting edge spy dig, by rectangle inspecting hole I, rectangle
II, two rectangle inspecting holes III of inspecting hole carve the marking on casing, and technologist designs processing side by observing stamp positions
Case.
To achieve the above object, the technical scheme for being used is the present invention：A kind of positioning for the processing of hot investment casting part
Fixture, it is characterised in that：Including locating clip it is specific, visit chisel；
The locating clip is specially rectangular plate-like, and the rectangular through-hole of several losss of weight is provided with the specific reverse side concave surface of locating clip,
Several rectangular through-holes are spaced symmetric arrays by four rows, often arrange four rectangular through-holes, and four rectangular through-holes are placed equidistant, in first row
The top of first, second rectangular through-hole and first, second rectangular through-hole of the 4th row be respectively arranged below with one
Individual raised locating piece, first in second row, first of second rectangular through-hole and the 3rd row, second rectangular through-hole it
Between, two raised locating pieces are provided with, the face of each raised locating piece is provided with three projections,
A rectangle inspecting hole I is provided with the plate face of top between the 3rd of first row and the 4th rectangular through-hole,
A rectangle inspecting hole II is provided with the plate face of lower section between the 3rd of the 4th row and the 4th rectangular through-hole, the
On concave surface between first of two rows, first of second rectangular through-hole and the 3rd row, second rectangular through-hole, two are provided with
Individual rectangle inspecting hole III, two obverse both sides of rectangle inspecting hole III coordinate for gap, and centre communicates, rectangle inspecting hole I, length
Square inspecting hole II and two centers of rectangle inspecting hole III are on a horizontal line；
Described chisel one end of visiting is handle, and the other end is cutter, and the section of cutter is rectangle, is beveled mouth at the cutting edge of cutter；
The cutter for visiting chisel is placed in rectangle inspecting hole I or is placed in rectangle inspecting hole II or be respectively placed in two rectangles and visited
In hole III, rectangular cutter is respectively with rectangle inspecting hole I, rectangle inspecting hole II and two rectangle inspecting holes III for small―gap suture is matched somebody with somebody
Close.
A kind of positioning fixture application method for the processing of hot investment casting part, it is characterised in that：Step is as follows,
12 locating slots of cabinet inside be have selected as the positioning in cabinet X, Y-direction, the B parallel with face where 12 locating slots
Face is the bottom surface of wax-pattern in cabinet casting, and this facial disfigurement is smaller, so this face is used as the positioning in Z-direction, first will be fixed
In 12 positioning locating slots on the raised locating pieces of position fixture body four in totally 12 raised correspondence insertion cabinet B faces casings, will
The specific bottom surface of locating clip is fitted with case box B faces, locating clip is specifically placed on sleeping milling machine with cabinet after combination clamps
Post-processing A-C two sides, then processing D faces on end mill are changed to, because B faces are key, in face of processing B, the cutter for digging will be visited successively
It is placed in the specific rectangle inspecting hole I of locating clip, II, two rectangle inspecting holes III of rectangle inspecting hole, chisel handle is visited with hammer
Hand, makes the beveled mouth of cutter be contacted with cabinet left wall, mesospore, right wall, and leaves the cut marking, then pulls down locating clip and specifically sees
Examine the cut marking in cabinet left wall, mesospore, right wall, and respectively with left wall reference side wall, mesospore reference side wall, right wall reference side
Wall compares, and how the machining benchmark in analysis B faces offsets, and several cabinets are classified according to side-play amount, then adjusts skew by class
Amount, processing B faces.The beneficial effects of the invention are as follows：In order to accurately find out milling machine process inner chamber when position whether with positioning base
Standard coincide, facilitate technologist to make accurate processing scheme before processing, locating clip particularly output rectangle inspecting hole I,
II, two rectangle inspecting holes III of rectangle inspecting hole, before processing technologist's simulating cutting process using with cutting edge spy dig,
The marking is carved on casing by rectangle inspecting hole I, II, two rectangle inspecting holes III of rectangle inspecting hole, technologist is by seeing
Examine stamp positions and design processing scheme, it is ensured that the control errors after cabinet processing in the reasonable scope, improve processing effect
Rate.
Brief description of the drawings
Fig. 1 is structural decomposition diagram of the invention；
Fig. 2 is the specific reverse structure schematic of locating clip of the present invention；
Fig. 3 is the structural representation that the present invention visits chisel；
Fig. 4 is the B faces schematic diagram for being processed cabinet；
Fig. 5 is the schematic diagram after locating clip of the present invention is specifically engaged with processed cabinet B faces；
Fig. 6 is use state schematic diagram of the invention；
The schematic diagram that the actual cut marking left avertences of Fig. 7 are moved；
Fig. 8 is the enlarged drawing of Fig. 7 A.
Specific embodiment
As shown in Figure 1, 2, 3, a kind of positioning fixture for the processing of hot investment casting part, including locating clip specific 1, spy chisel 2.
Locating clip specific 1 is rectangular plate-like, and the rectangular through-hole of several losss of weight is provided with the specific 1 reverse side concave surface of locating clip
1-1, several rectangular through-hole 1-1 are spaced symmetric arrays by four rows, often arrange four rectangular through-holes 1-1, four rectangular through-hole 1-1 equidistant
Set, in the top of first, second rectangular through-hole 1-1 of first row and first, second rectangular through-hole of the 4th row
1-1's is respectively arranged below with a raised locating piece 1-2, first in second row, second rectangular through-hole 1-1 and the 3rd row
First, between second rectangular through-hole 1-1, two raised locating piece 1-2 are provided with, on the face of each raised locating piece 1-2
Be provided with three projection 1-3, between the 3rd of first row and the 4th rectangular through-hole 1-1 top plate face on be provided with one it is long
The 1-4 of square inspecting hole I, between the 3rd of the 4th row and the 4th rectangular through-hole 1-1 lower section plate face on be provided with one it is rectangular
The 1-5 of shape inspecting hole II, first in second row, first, second rectangular through-hole of second rectangular through-hole 1-1 and the 3rd row
On concave surface between 1-1, two 1-6 of rectangle inspecting hole III are provided with, two obverse both sides of the 1-6 of rectangle inspecting hole III are gap
Coordinate, centre communicates, and the 1-4 of rectangle inspecting hole I, II 1-5 and two center of the 1-6 of rectangle inspecting hole III of rectangle inspecting hole are at one
On horizontal line.
It is handle to visit 2 one end of chisel, and the other end is cutter 2-1, and the section of cutter 2-1 is rectangle, at the cutting edge of cutter 2-1
It is beveled mouth 2-2.
The cutter 2-1 for visiting chisel 2 is placed in the 1-4 of rectangle inspecting hole I or is placed in the 1-5 of rectangle inspecting hole II or is respectively placed in two
In the individual 1-6 of rectangle inspecting hole III.
Cutter 2-1 is respectively small with the 1-4 of rectangle inspecting hole I, II 1-5 and two 1-6 of rectangle inspecting hole III of rectangle inspecting hole
Clearance fit relationship.
As shown in Figure 4,5, 6, a kind of positioning fixture application method for the processing of hot investment casting part, step is as follows：
During Milling Machining, it is desirable to positioned using fixture, how to select cabinet 3 is ten with the cooperation position of positioning fixture
It is point important, with reference to cabinet 3 after each part of fit on, between part and part to inserting relation and quality of fit just, choosing
The 12 locating slot 3-1 in inside of cabinet 3 are selected as shown in figure 4, as the positioning in cabinet 3X, Y-direction, with 12 locating slot 3-1
The parallel B faces in place face are the bottom surface of wax-pattern during cabinet 3 casts, and this facial disfigurement is smaller, so this face is used as in Z-direction
Positioning.
First by totally 12 projection 1-3 correspondences insert cabinet 3B faces casing on specific 1 four raised locating piece 1-2 of locating clip
In 12 interior positioning locating slot 3-1, the bottom surface of locating clip specific 1 is fitted with the casing B faces of cabinet 3, by locating clip after combination
Specific 1 is placed on clamping post-processing A-C two sides on sleeping milling machine with the direction that such as Fig. 5 illustrates of cabinet 3, then changes to processing on end mill
D faces, because B faces are key, in face of face processing B, the cutter 2-1 that will visit chisel 2 is successively placed in the rectangle inspecting hole of locating clip specific 1
In I 1-4, the 1-5 of rectangle inspecting hole II, two 1-6 of rectangle inspecting hole III, and through the 1-4 of rectangle inspecting hole I, rectangle inspecting hole II
In 1-5, two 1-6 of rectangle inspecting hole III, 2 handles of chisel are visited with hammer, make the beveled mouth 2-2 of cutter 2-1 and the left wall of cabinet 3
3-2, mesospore 3-3, right wall 3-4 contacts, and cut marking 3-5 is left, then pull down the specific 1 observation cabinet 3 left wall 3- of locating clip
2nd, the cut marking 3-5 on mesospore 3-3, right wall 3-4, as shown in figure 4, simultaneously respectively with left wall 3-2 reference sides wall, mesospore 3-2 bases
Quasi- side wall, right wall 3-2 reference side walls compare, and how the machining benchmark in analysis B faces offsets, and is entered several cabinets 3 according to side-play amount
Row classification, B faces are processed by class again.
Left wall 3-2 reference sides wall, mesospore 3-3 reference sides wall, the selection of right wall 3-4 reference side walls, are according to positioning fixture
The position of opening determination of the 1-4 of rectangle inspecting hole I, II 1-5 of rectangle inspecting hole, two 1-6 of rectangle inspecting hole III that body 1 is provided with, that is, press from both sides
Cutting edge roundness position is just to cabinet reference side wall after tool oblong aperture insertion spy chisel 2.
Embodiment as shown in Figure 7,8, three actual cut marking 3-5 respectively with respect to left wall 3-2 reference side walls 3-2-1, in
Wall 3-3 reference side walls 3-3-1, right wall 3-4 reference side walls 3-4-1 offset 0.4mm to the left, are divided into a class, then during reality processing B faces
Consider for machining benchmark right avertence to move 0.2mm according to actual cut marking 3-5 and the balance of reference side wall.
If actual cut marking 3-5 respectively with respect to left wall 3-2 reference side walls 3-2-1, mesospore 3-3 reference side walls 3-3-1,
Right wall 3-4 reference side walls 3-4-1 offsets to the right 0.4mm, is divided into two classes, then according to actual marking 3-5 and base during reality processing B faces
Quasi- side wall balance considers for machining benchmark left avertence to move 0.2mm.
If side-play amount is smaller, without adjustment, it is divided into the 3rd class.
If left and right side-play amount is more than 0.4mm, belong to the big cabinet of deformation, be divided into the 4th class, wouldn't process.
Claims (2)
1. it is a kind of for hot investment casting part processing positioning fixture, it is characterised in that：It is specific including locating clip（1）, visit chisel（2）；
The locating clip is specific（1）It is rectangular plate-like, it is specific in locating clip（1）The rectangle of several losss of weight is provided with reverse side concave surface
Through hole（1-1）, several rectangular through-holes（1-1）Symmetric arrays are spaced by four rows, four rectangular through-holes are often arranged（1-1）, four rectangles
Through hole（1-1）It is placed equidistant, first, second rectangular through-hole in first row（1-1）Top and first of the 4th row,
Second rectangular through-hole（1-1）Be respectively arranged below with a raised locating piece（1-2）, first, second in second row
Rectangular through-hole（1-1）First, second rectangular through-hole with the 3rd row（1-1）Between, it is provided with two raised locating pieces（1-
2）, each raised locating piece（1-2）Face be provided with three projections（1-3）,
In the 3rd of first row and the 4th rectangular through-hole（1-1）Between top plate face be provided with a rectangle inspecting hole I
（1-4）,
In the 3rd of the 4th row and the 4th rectangular through-hole（1-1）Between lower section plate face be provided with a rectangle inspecting hole II
（1-5）, first, second rectangular through-hole in second row（1-1）First, second rectangular through-hole with the 3rd row（1-
1）Between concave surface on, be provided with two rectangle inspecting holes III（1-6）, two rectangle inspecting holes III（1-6）Obverse both sides are
Gap coordinates, and centre communicates, rectangle inspecting hole I（1-4）, rectangle inspecting hole II（1-5）With two rectangle inspecting holes III（1-6）'s
Center is on a horizontal line；
It is described to visit chisel（2）One end is handle, and the other end is cutter（2-1）, cutter（2-1）Section be rectangle, cutter（2-1）
Cutting edge at be beveled mouth（2-2）；
It is described to visit chisel（2）Cutter（2-1）It is placed in rectangle inspecting hole I（1-4）In or be placed in rectangle inspecting hole II（1-5）In or point
Two rectangle inspecting holes III are not placed in（1-6）In, rectangular cutter（2-1）Respectively with rectangle inspecting hole I（1-4）, rectangle
Inspecting hole II（1-5）With two rectangle inspecting holes III（1-6）For small―gap suture coordinates.
2. a kind of using according to the above-mentioned positioning fixture application method processed for hot investment casting part of claim 1, its feature
It is：Step is as follows,
Have selected cabinet（3）Internal 12 locating slots（3-1）As cabinet（3）Positioning in X, Y-direction, with 12 locating slots
（3-1）The parallel B faces in place face are cabinet（3）The bottom surface of wax-pattern in casting, this facial disfigurement is smaller, so this face is used as Z
Positioning on direction,
It is first that locating clip is specific（1）Four raised locating pieces（1-2）On totally 12 projections（1-3）Correspondence insertion cabinet（3）B faces
12 positioning locating slots in casing（3-1）In, locating clip is specific（1）Bottom surface and cabinet（3）Casing B faces are fitted, combination
It is afterwards that locating clip is specific（1）With cabinet（3）It is placed on and post-processing A-C two sides is clamped on sleeping milling machine, then changes to D is processed on end mill
Face, because B faces are key, in face of processing B, digs visiting（2）Cutter（2-1）Successively it is placed in locating clip specific（1）Rectangle
Inspecting hole I（1-4）, rectangle inspecting hole II（1-5）, two rectangle inspecting holes III（1-6）It is interior, visited with hammer and dug（2）Handle, makes
Cutter（2-1）Beveled mouth（2-2）With cabinet（3）Left wall（3-2）, mesospore（3-3）, right wall（3-4）Contact, and leave cut print
Note（3-5）, then pull down locating clip specific（1）Observation cabinet（3）Left wall（3-2）, mesospore（3-3）, right wall（3-4）On cut
The marking（3-5）, and respectively with left wall（3-2）Reference side wall, mesospore（3-3）Reference side wall, right wall（3-4）Reference side wall compares,
How the machining benchmark in analysis B faces offsets, according to side-play amount by several cabinets（3）Classified, then side-play amount is adjusted by class, plus
Work B faces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611153849.8A CN106736683B (en) | 2016-12-14 | 2016-12-14 | A kind of positioning fixture and application method for the processing of hot investment casting part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611153849.8A CN106736683B (en) | 2016-12-14 | 2016-12-14 | A kind of positioning fixture and application method for the processing of hot investment casting part |
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| CN106736683A true CN106736683A (en) | 2017-05-31 |
| CN106736683B CN106736683B (en) | 2019-05-24 |
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