CN110524069B - Positioning guide device for processing inclined hole - Google Patents
Positioning guide device for processing inclined hole Download PDFInfo
- Publication number
- CN110524069B CN110524069B CN201910812253.1A CN201910812253A CN110524069B CN 110524069 B CN110524069 B CN 110524069B CN 201910812253 A CN201910812253 A CN 201910812253A CN 110524069 B CN110524069 B CN 110524069B
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- baffle
- tooth
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- guide plate
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- 238000000034 method Methods 0.000 claims abstract description 29
- 238000010892 electric spark Methods 0.000 abstract description 5
- 238000003754 machining Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention discloses a positioning and guiding device for machining inclined holes, which comprises a tooth-shaped positioning block, a baffle and a guiding plate, wherein the tooth-shaped positioning block is arranged on the baffle; a baffle is arranged on the tooth-shaped positioning block; the baffle plate is provided with a guide plate; the guide plate is provided with a mounting hole for mounting the guide sleeve, and the guide sleeve is in interference fit with the mounting hole. The positioning and guiding device solves the problem that the inclined hole at the bottom of the turbine disc mortise slot is difficult to process and guarantee, has reasonable and compact structure, accurate and reliable positioning, quick and convenient clamping, is easy to align in the processing process, can accurately guide an electrode, completely meets the requirement of the electric spark processing of the inclined hole at the bottom of the turbine disc mortise slot, and provides reference experience for similar problems.
Description
[ technical field ] A method for producing a semiconductor device
The invention belongs to the technical field of electric spark machining, and relates to a positioning guide device for machining an inclined hole.
[ background of the invention ]
The turbine disc is one of key parts of engine parts, and is a ring-shaped part, tens of zigzag tongue-and-grooves are uniformly distributed on the excircle along the circumferential direction, the central symmetry plane of the tongue-and-groove is inclined with the end face of the tongue-and-groove under most conditions, and a plurality of inclined holes need to be processed at the bottom of the tongue-and-groove. As shown in figures 1, 2 and 3, the inclined angle alpha between the central symmetrical plane of the mortise and the end face of the mortise is 80 degrees, the size H1 from the intersection point of the central symmetrical plane of the mortise and the central line of the turbine disc to the end face of the mortise is 22mm, the mortise is really seen from A direction, the intersection point formed by the plane 4.15mm away from the end face H2 of the mortise, the symmetrical central plane of the tenon and the 3 plane of the bottom of the mortise is processed to be parallel to the end face of the mortise, and the inclined angle beta between the central line of the turbine disc and the central line is 35 degrees, the diameter D1 is phi 1.2 inclined hole, so that the hole can not be processed from the excircle, the hole diameter is small, the inclined hole can only be processed from the back by electric spark, the machine tool is not easy to find the position and the direction of the inclined hole, and the turbine disc is processed to the final procedure, so that the positioning guide device which has high cost, reliable positioning, quick and convenient clamping and can accurately, since such problems have not been encountered before, there is no reference to experience.
[ summary of the invention ]
The invention aims to solve the problem that an inclined hole at the bottom of a turbine disc mortise slot is difficult to process and guarantee, and provides a positioning guide device for processing the inclined hole.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
a positioning guide device for machining an inclined hole comprises:
the tooth-shaped positioning block is provided with a baffle;
the baffle plate is provided with a guide plate;
the guide plate, set up the mounting hole that is used for installing the guide pin bushing on the guide plate, guide pin bushing and mounting hole interference fit.
The invention further improves the following steps:
the tooth-shaped positioning block is a special-shaped block with helical teeth, and a process ball is arranged on the tooth-shaped positioning block.
The tooth-shaped positioning block is provided with a process ball mounting hole, and the process ball is mounted in the process ball mounting hole.
One side of the tooth-shaped positioning block is provided with a convex tooth which is in clearance fit with the mortise of the turbine disc and has the same inclination angle.
The baffle is a triangular flat plate, and the upper end surface of the baffle is a front surface.
The guide plate is positioned and installed on the baffle plate through two cylindrical pins and is fixed through screws.
The guide board is the L template, is equipped with two cylindric lock mounting holes of being connected with the baffle on the guide board and with baffle screw hole assorted screw via hole.
The guide sleeve is mounted on the guide plate through an outer cylinder.
The guide plate is provided with a through hole, and the outer cylinder of the guide sleeve is in interference fit with the through hole in the guide plate.
The center hole of the guide sleeve is coaxial with the outer cylinder and is in clearance fit with the electrode.
Compared with the prior art, the invention has the following beneficial effects:
the positioning and guiding device solves the problem that the inclined hole at the bottom of the turbine disc mortise slot is difficult to process and guarantee, has reasonable and compact structure, accurate and reliable positioning, quick and convenient clamping, is easy to align in the processing process, can accurately guide an electrode, completely meets the requirement of the electric spark processing of the inclined hole at the bottom of the turbine disc mortise slot, and provides reference experience for similar problems.
[ description of the drawings ]
FIG. 1 is a front view of a turbine disk; beta is an included angle between the center line of the turbine disc and the center line of the inclined hole;
FIG. 2 is a left side view of FIG. 1; alpha is an included angle between a symmetrical center plane of the mortise of the turbine disc and the end face (plane C) of the disc, H1 is a distance between the intersection point of the symmetrical center plane of the mortise and the center line of the turbine disc and the plane C, and H2 is a distance between the center of the inclined hole and the plane C;
FIG. 3 is a drawing A of FIG. 1;
FIG. 4 is a front view of the present invention; l1 is the distance between the center of the process ball and the center line of the turbine disc, L2 is the distance between the center of the process ball and the center of the turbine disc, and beta is the included angle between the center line of the turbine disc and the center line of the guide sleeve;
FIG. 5 is a left side view of FIG. 4; h3 is the height from the right side (FIG. 5) of the baffle plate, i.e. the positioning surface of the plane C, to the process ball; alpha is the included angle between the tooth-shaped symmetrical center plane of the tooth-shaped positioning block and the right side surface (figure 5) of the baffle;
FIG. 6 is a view from the direction B of FIG. 4; d2 is the inner diameter of the guide sleeve;
FIG. 7 is a cross-sectional view A-A of FIG. 4;
FIG. 8 is a front view of the toothed locating block of the present invention; alpha is the included angle between the tooth-shaped symmetrical center plane and the plane D;
FIG. 9 is a top view of the toothed locating block of the present invention;
FIG. 10 is a view of the toothed positioning block of the present invention in the direction of C;
FIG. 11 is a schematic structural view of a baffle of the present invention;
figure 12 is a D-D cross-sectional view of a guiding plate according to the invention; d3 is the pore diameter; h4 is the distance between plane E and the center of the D3 hole;
fig. 13 is a front view of the guiding plate of the invention;
FIG. 14 is a schematic view of the structure of the guide sleeve of the present invention; d4 is the outer diameter; d5 is the inside diameter.
Wherein: 1-a tooth-shaped positioning block; 2-a baffle plate; 3-a guide plate; 4-guiding the guide sleeve; 5-a process ball; 6-mounting holes for process balls; 7-cylindrical pin mounting holes; 8-a threaded hole; 9-cylindrical pin mounting holes; 10-screw through holes; 11-a threaded hole; 12-cylindrical pin mounting holes; 13-screw via.
[ detailed description ] embodiments
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments, and are not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Various structural schematics according to the disclosed embodiments of the invention are shown in the drawings. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.
In the context of the present disclosure, when a layer/element is referred to as being "on" another layer/element, it can be directly on the other layer/element or intervening layers/elements may be present. In addition, if a layer/element is "on" another layer/element in one orientation, then that layer/element may be "under" the other layer/element when the orientation is reversed.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 4-7, the processed inclined hole is positioned at the bottom of the sawtooth-shaped inclined groove, and the positioning guide device for processing the inclined hole comprises a tooth-shaped positioning block 1, a baffle plate 2, a guide plate 3, a guide sleeve 4, a connecting screw and a cylindrical pin.
As shown in fig. 8-10, the tooth-shaped positioning block 1 is a special-shaped block with oblique teeth, the plane D is as high as the plane C of the turbine disc, the plane D is provided with a process ball mounting hole 6 through which a process ball 5 is mounted, the right side of the tooth-shaped positioning block 1 is provided with convex teeth which are closely matched with the size of the mortise of the turbine disc in a clearance way and have the same inclination angle, the tooth-shaped positioning block 1 controls the size of the convex teeth through the process ball 5, and the tooth-shaped positioning block 1 is further provided with 2 cylindrical pin mounting holes 7 and threaded holes 8.
As shown in fig. 11, the baffle 2 is a triangular flat plate, the upper end surface of the baffle is an alignment surface, 2 groups of cylindrical pin mounting holes 9 are arranged on the baffle, one group of cylindrical pin mounting holes 9 on the left side correspond to the cylindrical pin mounting holes 7 on the toothed positioning block 1 in position and have the same size, the screw through holes 10 on the baffle are matched with the threaded holes B on the toothed positioning block 1, and the baffle 2 is arranged on the plane D of the toothed positioning block 1 in a one-side two-pin positioning mode and is fastened by screws; and the middle part of the other group of cylindrical pin mounting holes 9 is provided with a threaded hole 11.
As shown in fig. 12 and 13, the guide plate 3 is fixed to the baffle plate 2 by a plane E and two cylindrical pins and fixed by screws. After assembly, dimension L3 and angle β in fig. 4, dimension H2 in fig. 7, are ensured, and the front face in fig. 4 is found perpendicular to the centerline of the D3 hole. As shown in fig. 12 and 13, the guide plate 3 is an L-shaped plate, and 2 cylindrical pin mounting holes 12 connected to the baffle plate 2 and screw through holes 13 matched with the threaded holes 11 of the baffle plate 2 are formed in the L-shaped plate, and the distance H4 from the center of the hole from the plane E to the hole D3 is equal to the thickness of H2+ the baffle plate 2.
As shown in fig. 14, the guide sleeve 4 is installed in the hole D3 of the guide plate 3 through the outer cylinder D4, nominal sizes of D3 and D4 are the same, the nominal sizes of the D3 and D4 are in interference fit, the center hole D5 of the guide sleeve 4 and the outer cylinder D4 have coaxiality requirements, D5 is D1-a bilateral discharge gap, the nominal size is the same as that of an electrode, and the electrode is in small clearance fit with the electrode, when the electric spark machine tool is processed, the electrode discharges to a metal material, the electrode reciprocates in the guide sleeve, and therefore the guide sleeve 4 is made of the non-metal wear-resistant material MC nylon.
The structural principle and the working process of the invention are as follows:
the invention is composed of a tooth-shaped positioning block 1, a baffle 2, a guide plate 3, a guide sleeve 4, a connecting screw and a cylindrical pin. Baffle 2 installs on profile of tooth locating piece 1 to through screw pin connection, guide board 3 installs on baffle 2, also through screw pin connection, guide sleeve 4 installs in the hole on guide board 3, interference fit between the two. Because the electric processing is not stressed, the turbine disc is heavier and does not need to be pressed on a feeding bed; the processed inclined hole has larger position degree, and the positioning guide device has smaller fit clearance because of being positioned by the sawtooth-shaped tenon teeth, can be ignored in the limited moving range in the processing process and is not required to be fixed on a turbine disc.
When the positioning guide device is used, the turbine disc plane C is horizontally placed on the workbench in an upward mode, and then the positioning guide device is installed in a mortise on the disc, wherein an inclined hole is to be machined; as shown in fig. 4, the straightening surface in fig. 4 is aligned, and the electrode in the electrode holder is inserted into the inner hole D5 of the guide sleeve 4, and then the electrode is machined. And after a hole is machined, taking out the positioning guide device, and inserting the positioning guide device into another groove for machining.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (1)
1. A positioning and guiding device for processing inclined holes is characterized by comprising:
the tooth-shaped positioning block (1), wherein a baffle (2) is arranged on the tooth-shaped positioning block (1); one side of the tooth-shaped positioning block (1) is provided with a convex tooth which is in clearance fit with the mortise of the turbine disc and has the same inclination angle; the tooth-shaped positioning block (1) is a special-shaped block with helical teeth, and is provided with a process ball (5); a process ball mounting hole (6) is formed in the tooth-shaped positioning block (1), and a process ball (5) is mounted in the process ball mounting hole (6);
the baffle (2), install the guide plate (3) on the baffle (2); the baffle (2) is a triangular flat plate, and the upper end surface of the baffle is a front surface;
the guide plate (3) is provided with a mounting hole for mounting the guide sleeve (4), and the guide sleeve (4) is in interference fit with the mounting hole; the guide plate (3) is positioned and installed on the baffle plate (2) through two cylindrical pins and is fixed through screws; the guide plate (3) is an L-shaped plate, and two cylindrical pin mounting holes connected with the baffle (2) and screw through holes matched with the threaded holes of the baffle (2) are formed in the guide plate (3);
the guide sleeve (4) is arranged on the guide plate (3) through an outer cylinder; a through hole is formed in the guide plate (3), and the outer cylinder of the guide sleeve (4) is in interference fit with the through hole in the guide plate (3); the center hole of the guide sleeve (4) is coaxial with the outer cylinder and is in clearance fit with the electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910812253.1A CN110524069B (en) | 2019-08-30 | 2019-08-30 | Positioning guide device for processing inclined hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910812253.1A CN110524069B (en) | 2019-08-30 | 2019-08-30 | Positioning guide device for processing inclined hole |
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| Publication Number | Publication Date |
|---|---|
| CN110524069A CN110524069A (en) | 2019-12-03 |
| CN110524069B true CN110524069B (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910812253.1A Active CN110524069B (en) | 2019-08-30 | 2019-08-30 | Positioning guide device for processing inclined hole |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112296377B (en) * | 2020-12-29 | 2021-05-07 | 江苏乐萌精密科技有限公司 | Method for processing qualified inclined hole on surface of metal mask frame with allowance |
| CN114406374B (en) * | 2021-12-29 | 2023-02-28 | 南京航空航天大学 | Aero-engine turbine disc mortise electrolytic broaching machining device and method |
| CN114918482A (en) * | 2022-06-21 | 2022-08-19 | 中国航发贵州黎阳航空动力有限公司 | Machining method for wide and large mortise of turbine disc |
| CN114888371B (en) * | 2022-06-29 | 2023-11-24 | 中国航发动力股份有限公司 | Device for machining multiple groups of holes in embedded part and application method of device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080075546A1 (en) * | 2006-09-21 | 2008-03-27 | Tung-Chuan Lin | Inclined-hole drilling jig |
| CN201320694Y (en) * | 2008-12-31 | 2009-10-07 | 天长缸盖有限公司 | Clamp for processing spatial angular hole |
| CN201755676U (en) * | 2010-08-20 | 2011-03-09 | 常州特尔玛机电实业有限公司 | Jig for processing valve body slant holes |
| CN202192300U (en) * | 2011-07-25 | 2012-04-18 | 天津市汉沽德源机械制造有限公司 | Drilling die for throttling valve body |
| CN103769877A (en) * | 2012-10-24 | 2014-05-07 | 西安志越机电科技有限公司 | Disk workpiece inclined hole drilling clamp |
| CN203599908U (en) * | 2013-11-21 | 2014-05-21 | 中国南方航空工业(集团)有限公司 | Machining clamp for turbine work blade |
| CN103801735A (en) * | 2014-03-12 | 2014-05-21 | 无锡威孚马山油泵油嘴有限公司 | Drill jig structure for processing lower inclined hole of plunger bushing |
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| CN110524069A (en) | 2019-12-03 |
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Effective date of registration: 20240611 Address after: 710000, Room 401, 4th Floor, Building 7, Dapu Industrial Park, No. 4955 Shangyuan Road, Economic Development Zone, Xi'an City, Shaanxi Province Patentee after: XI'AN Xaec Suntimes HIGH-TECH Co.,Ltd. Country or region after: China Address before: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province Patentee before: AECC AVIATION POWER CO,LTD. Country or region before: China |