CN114770169B - Milling machine fixture for air distribution pipe and clamping method - Google Patents
Milling machine fixture for air distribution pipe and clamping method Download PDFInfo
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- CN114770169B CN114770169B CN202210565440.6A CN202210565440A CN114770169B CN 114770169 B CN114770169 B CN 114770169B CN 202210565440 A CN202210565440 A CN 202210565440A CN 114770169 B CN114770169 B CN 114770169B
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- air distribution
- distribution pipe
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- compression
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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
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses an air distribution pipe milling machine fixture and a clamping method. The installation chassis is provided with a supporting inclined plane, a bottom surface and a pressing surface, the first pressing arc plate and the second pressing arc plate press the air distribution pipe at the position of the supporting inclined plane, the positioning baffle plate positions and limits the air distribution pipe on the installation chassis, and the pressing screw and the pressing aluminum plate press the air distribution pipe from two sides. By adopting the milling machine fixture and the clamping method, the positioning processing is convenient to adjust, the working efficiency is improved, the consistency of the product performance is ensured, and the appearance quality of the product is improved.
Description
Technical Field
The invention relates to the technical field of numerical control milling processing, in particular to a clamp and a clamping method for ensuring that an air distribution pipe assembly of an outlet muffler on a large aircraft meets performance requirements.
Background
As part of the exit muffler system on large aircraft, the air distribution pipe is an important component, the air distribution pipe is a thin wall machined part, consistency of manufacturing quality is particularly important, weight requirements are strict, and appearance quality is particularly important. If the traditional method of alignment adjustment and positioning clamping is adopted, the alignment clamping is difficult, the quality of the product is poor, the assembly clamping deformation is easy to cause, the product is scrapped, and in order to produce the actual needs, a set of air distribution pipe milling machine fixture is urgently needed to be designed.
Disclosure of Invention
The invention aims to provide an air distribution pipe milling machine fixture and a clamping method, wherein the fixture is used for compressing an air distribution pipe to be processed after combined positioning and locking, and then carrying out numerical control milling processing on a surface to be processed, so that an outlet muffler on a large aircraft is ensured to meet performance requirements, positioning processing is convenient to adjust after clamping, the working efficiency is improved, the product performance consistency is ensured, and meanwhile, the appearance quality of the product is improved.
The invention is realized by the following technical scheme:
the milling machine fixture for the air distribution pipe comprises a main pipe body in a cylindrical shape, the surface of the main pipe body extends out of a distribution branch pipe, the axis of the distribution branch pipe is coplanar with the axis of the main pipe body and has a first included angle, the end face of the distribution branch pipe is a surface to be processed, the surface to be processed is parallel to the axis of the main pipe body, the milling machine fixture comprises,
the air distribution pipe comprises an installation underframe, a main pipe body and a main pipe body, wherein the installation underframe comprises a supporting inclined plane, a compression surface and a bottom surface, an included angle between the supporting inclined plane and the bottom surface is a second included angle, the second included angle is complementary with the first included angle, the main pipe body of the air distribution pipe is clung to the supporting inclined plane, and the two compression surfaces are parallel and distributed on two sides of the supporting inclined plane at intervals;
the positioning baffle is positioned at the lower end of the installation underframe and is intersected with the downward extension surface of the supporting inclined surface, and the positioning baffle is detachably connected with the installation underframe;
the first compression arc plate is detachably connected to the supporting inclined plane and is close to the positioning baffle plate;
the second pressing arc plate is detachably connected to the supporting inclined plane and is far away from the positioning baffle plate;
the compression aluminum plate is arranged between the compression surface and the air distribution pipe;
the jacking screw is in threaded connection with the compression surface, and the moving path of the jacking screw is intersected with the compression aluminum plate;
when the air distribution pipe and the milling machine fixture are clamped, the main pipe body of the air distribution pipe is positioned between the first compression arc plate, the second compression arc plate, the bottom surface and the two compression surfaces, the distribution branch pipe is positioned between the second compression arc plate and the first compression arc plate, and the surface to be processed at the tail end of the distribution branch pipe, the first compression arc plate and the second compression arc plate are simultaneously positioned on the same side of the supporting inclined plane.
Further, the mounting chassis has a pentagonal prism shape, and includes,
the first side plate is positioned on the top surface of the pentagonal prism;
the second side plate is positioned on the bottom surface of the pentagonal prism and is parallel to the first side plate, and the second side plate and the first side plate form two compression surfaces on the installation underframe together;
a first side surface, which is one of five side surfaces of the pentagonal prism, and forms a supporting inclined surface;
the second side surface is one of two side surfaces which are not connected with the first side surface in the five side surfaces of the pentagonal prism, and the second side surface forms a bottom surface;
the third side surface is one of two side surfaces connected with the first side surface in the five side surfaces of the pentagonal prism, and the positioning baffle is detachably connected to the third side surface.
Further, the positioning baffle is a flat plate and is connected with the installation underframe through holes and screws at two ends of the flat plate.
Further, each of the two ends of the first pressing arc plate is provided with an opening, the first pressing arc plate is connected with the supporting inclined plane through the opening and the screw, the first pressing arc plate further comprises a pressing surface, and the curvature of the pressing surface is consistent with the curvature of the surface of the main pipe body of the air distribution pipe.
Further, the two ends of the second compaction arc plate are respectively provided with an opening, the second compaction arc plate is connected with the supporting inclined plane through the opening and the screw, the second compaction arc plate further comprises a compaction surface, and the curvature of the compaction surface is consistent with the curvature of the surface of the main pipe body of the air distribution pipe.
Further, the pressing aluminum plate is a flat plate with two flat surfaces.
Further, the jacking screw is a screw with knurled surface.
An air distribution pipe clamping method adopting the milling machine fixture comprises the following steps,
the first pressing arc plate and the second pressing arc plate are detached from the milling machine fixture, an air distribution pipe is arranged on a supporting inclined plane of the installation underframe, the distribution branch pipe, the first pressing arc plate and the second pressing arc plate are positioned on the same side of the supporting inclined plane, and the positioning baffle is used for preliminary limiting and positioning;
secondly, placing a compressed aluminum plate between a compression surface of the mounting underframe and the air distribution pipe, and preliminarily positioning and pre-tightening the air distribution pipe by using a jacking screw;
thirdly, limiting, compressing and locking the air distribution pipe by using the first compression arc plate and the second compression arc plate;
positioning and locking the air distribution pipe by using a jacking screw;
fifthly, placing the air distribution pipe and the milling machine fixture together on a milling machine for positioning and compacting;
milling the surface to be processed of the air distribution pipe (milling according to the drawing requirements and the technological specification requirements);
and seventhly, checking the machining process according to the process requirement, finishing machining, detaching the machined air distribution pipe from the milling machine fixture, and cleaning and checking.
Compared with the prior art, the invention has the following characteristics:
1. the milling machine fixture of the air distribution pipe is relatively simple to manufacture and convenient to use;
2. the air distribution pipe is independently arranged in the milling machine fixture, so that coordination limiting is conveniently adjusted, particularly, the axis of the main pipe body of the air distribution pipe is obliquely arranged, so that the axis of the distribution pipe is perpendicular to a milling machine working platform (figure 6), and as the main body of the distribution pipe is a cylindrical surface, the clamping mode ensures that the included angle between the axis of the distribution pipe and the axis of the main pipe body does not deviate greatly when the surface to be processed is milled, and the requirement of the installation angle of a subsequent finished product is met (because the milling acting force is along the axial direction of the distribution pipe, the axial rigidity of the distribution pipe is better, and the distribution pipe can resist compression deformation more, if the milling acting force forms an included angle with the axial direction of the distribution pipe, the distribution pipe can bend and deform to a certain extent relative to the own axis, and the included angle between the final main pipe body axis deviates from a design included angle value); meanwhile, the surface to be processed is in a plane state, so that the milling is easier to control, and the influence on uneven wall thickness is reduced;
3. the air distribution pipe is locked by pressing the jacking screw, so that the requirement of the product processing size is ensured, and the milling machine fixture mechanism is simple and compact, convenient to position and clamp, convenient to adjust, position and clamp and very suitable for milling the air distribution pipe; when the compaction aluminum plate is compacted from two sides of the main pipe body, the compaction force applied by the compaction aluminum plate plays a role of pre-deformation (the main pipe body has a flattened trend), so that the deformation influence of the force on the main pipe body when a part of surfaces to be processed of the distribution branch pipes are milled can be counteracted (the feeding direction of the milling cutter is along the axial direction of the distribution branch pipes, and the deformation direction of the main pipe body is opposite to the deformation direction of the compaction force of the compaction aluminum plate due to the axial force);
4. the milling machine fixture of the air distribution pipe is convenient to reset, has good use effect and reliable and stable quality, ensures the appearance quality requirement of the air distribution pipe, and meets the weight requirement of the air distribution pipe of the product;
5. the milling machine fixture for the air distribution pipe not only ensures the smooth delivery of the product with quality, but also creates good economic benefit.
Drawings
FIGS. 1-4 are schematic diagrams of air distribution pipe milling machine fixture devices;
FIG. 5 is a perspective view of an air distribution tube;
FIG. 6 is a side view of an air distribution tube with the primary tube axis and the distribution manifold axis angled;
FIGS. 7-9 are schematic views of an air distribution tube mounted on an air distribution tube milling machine fixture apparatus;
FIGS. 10-13 are schematic views of a mounting chassis;
FIGS. 14-15 are schematic diagrams of positioning baffles;
FIGS. 16-17 are schematic views of a first pinch arc plate;
FIGS. 18-19 are schematic views of a second pinch-arc plate;
FIGS. 20 to 21 are schematic diagrams of the pressed aluminum plate;
FIGS. 22 and 23 are schematic views of a set screw;
in the figure: 1-mounting underframe, 2-positioning baffle, 3-first compaction arc plate, 4-second compaction arc plate, 5-compaction aluminum plate, 6-jacking screw and 7-standard component.
Detailed Description
The present invention will be further described with reference to the drawings and the specific embodiments, but it should not be construed that the scope of the subject matter of the present invention is limited to the following embodiments, and various modifications, substitutions and alterations made according to the ordinary skill and familiar means of the art to which this invention pertains are included within the scope of the present invention without departing from the above technical idea of the invention.
As shown in fig. 5 and 6, the air distribution pipe comprises a main pipe body in a cylindrical shape, the surface of the main pipe body extends out of a distribution branch pipe, the axis of the distribution branch pipe is coplanar with the axis of the main pipe body, the included angle is a first included angle (47.6 degrees), the end face of the distribution branch pipe is a surface to be processed, the surface to be processed is parallel to the axis of the main pipe body, and the included angle between the axis of the main pipe body and the plane of a milling machine workbench is 42.4 degrees +/-5' during processing.
The air distribution pipe milling machine fixture comprises an installation underframe 1, a positioning baffle plate 2, a first compression arc plate 3, a second compression arc plate 4, a compression aluminum plate 5, a jacking screw 6 and a standard part 7.
The schematic diagrams of the milling machine fixture with the air distribution pipe are shown in fig. 1-4, the design of the milling machine fixture combines the installation posture of the air distribution pipe, and factors such as selection of a positioning surface and a limiting surface (clamping limiting of a main pipe body), selection of a pressing surface and a pressing mode (pressing on two sides of the main pipe body, upper pressing and lower supporting), auxiliary positioning and auxiliary pressing (limiting of a single-side tail end positioning baffle), the relation (included angle relation) between the fixture and a working table surface of the milling machine, the weight of the fixture and the like are considered.
The schematic diagrams of the air distribution tube mill fixture with the air distribution tube product mounted thereon are shown in fig. 7-9.
As shown in fig. 10 to 13, for the structural schematic diagram of the installation underframe 1, the installation underframe 1 is a bracket for installing and positioning an air distribution pipe in the milling machine fixture of the air distribution pipe, and the main functions of the bracket are to install, position, adjust and limit the air distribution pipe assembly; the mounting underframe 1 comprises a supporting inclined plane, a compression surface and a bottom surface, wherein a second included angle (42.4 degrees plus or minus 5 ') is formed between the supporting inclined plane and the bottom surface, the main pipe axis of the air distribution pipe is arranged along the supporting inclined plane (namely, the included angle between the main pipe axis of the air distribution pipe and the bottom surface is 42.4 degrees plus or minus 5'), and the two compression surfaces are parallel and distributed on two sides of the supporting inclined plane at intervals. Specifically, the mounting chassis 1 has a pentagonal prism shape, and includes,
a first side plate 11 positioned on the top surface of the pentagonal prism;
the second side plate 12 is positioned on the bottom surface of the pentagonal prism, the second side plate 12 is parallel to the first side plate 11, and the second side plate 12 and the first side plate 11 form two pressing surfaces on the installation underframe 1 together;
a first side surface, which is one of five side surfaces of the pentagonal prism, and forms a supporting inclined surface;
the second side surface is one of two side surfaces which are not connected with the first side surface in the five side surfaces of the pentagonal prism, and the second side surface forms a bottom surface;
and the third side surface is one of two side surfaces connected with the first side surface of the five side surfaces of the pentagonal prism, and the positioning baffle plate 2 is detachably connected to the third side surface.
As shown in fig. 12, the mounting chassis 1 is provided with a weight reducing design, such as a weight reducing hole.
As shown in fig. 14 to 15, for the positioning baffle plate 2, the positioning baffle plate 2 is a component for assembling and limiting an air distribution pipe in the milling machine fixture of the air distribution pipe, and has the main functions of installing and positioning the air distribution pipe, positioning and limiting the air distribution pipe from the lower end of the air distribution pipe, and ensuring the correct positioning, limiting and clamping of the air distribution pipe.
As shown in fig. 16 to 17, the first pressing arc plate 3 is one of positioning pressing parts in the air distribution pipe milling machine fixture, and the main function of the first pressing arc plate 3 is to press and lock a product on the milling machine fixture; the two ends of the first pressing arc plate 3 are respectively provided with an opening, the first pressing arc plate 3 is connected with the supporting inclined plane through the openings and the screws, the first pressing arc plate 3 further comprises a pressing surface, and the curvature of the pressing surface is consistent with the curvature (cylindrical surface) of the main pipe body surface of the air distribution pipe.
As shown in fig. 18 to 19, the second pressing arc plate 4 is one of positioning pressing parts in the air distribution pipe milling machine fixture, and the main function of the second pressing arc plate 4 is to press and lock a product on the milling machine fixture; the two ends of the second pressing arc plate 4 are respectively provided with an opening, the second pressing arc plate 4 is connected with the supporting inclined plane through the openings and the screws, the second pressing arc plate 4 further comprises a pressing surface, and the curvature of the pressing surface is consistent with the curvature (cylindrical surface) of the main pipe body surface of the air distribution pipe.
As shown in fig. 20 and 21, the pressing aluminum plate 5 is a part for positioning, pressing and protecting an air distribution pipe in the milling machine fixture of the air distribution pipe, and has the main functions of isolating the main pipe body of the air distribution pipe from the pressing screws 6, and playing a role in protecting the product when the product is pressed against the milling machine fixture from two sides by the pressing screws 6; the pressing aluminum plate 5 is a flat plate with two flat surfaces.
As shown in fig. 22 and 23, the tightening screw 6 is an adjusting and locking component in the milling machine fixture of the air distribution pipe, and has the main functions of adjusting and locking and limiting the position of the air distribution pipe, so that the displacement of the air distribution pipe during the milling process is prevented; the jacking screw 6 is a screw with knurled surface.
The standard part 7 is a connecting and locking part in the air distribution pipe milling machine fixture, and has the main functions of connecting and locking and pressing the connecting part, and the standard part 7 adopted in the embodiment is a pressing bolt and used for pressing and locking the first pressing arc plate 3 and the second pressing arc plate 4.
As shown in fig. 1 to 4, the mounting chassis 1, the positioning baffle 2, the first pressing arc plate 3, the second pressing arc plate 4, the pressing aluminum plate 5, the pressing screw 6 and the standard member 7 (pressing bolt) are assembled together according to the following structure: 1. the positioning baffle plate 2 is assembled and installed on the installation underframe 1, and the positioning baffle plate is positioned close to the bottom surface of the installation underframe 1;
2. the jacking screw 6 is arranged on the compression surface of the installation underframe 1;
3. the first compaction arc plate 3 is arranged on a supporting inclined plane of the installation underframe 1 to compact and position the air distribution pipe; 4. the second compaction arc plate 4 is arranged on a supporting inclined plane of the installation underframe 1 to compact and position the air distribution pipe; 5. two pressing aluminum plates 5 are respectively placed between the installation underframe 1 and the air distribution pipe, and the air distribution pipe is positioned and pressed (locked) by using a jacking screw 6;
6. finally, the first compression arc plate 3 and the second compression arc plate 4 are connected and locked and compressed by a standard part 7 (compression bolt).
The clamping step by using the air distribution pipe milling machine fixture comprises the following steps:
1. the first compaction arc plate 3 and the second compaction arc plate 4 are dismounted from the milling machine fixture, and products (air distribution pipes) are mounted at the supporting inclined plane position of the milling machine fixture, and are initially limited and positioned by the positioning baffle plate 2; 2. two compaction aluminum plates 5 are respectively placed between the compaction surface of the installation underframe 1 and the air distribution pipe, and the air distribution pipe is positioned and pre-tightened by using a jacking screw 6 in a preliminary step;
3. the first compaction arc plate 3 and the second compaction arc plate 4 are utilized to carry out limit compaction and lock the air distribution pipe;
4. positioning and locking the air distribution pipe by using a jacking screw 6;
5. placing the air distribution pipe and the milling machine fixture together on a milling machine for positioning and compacting;
6. processing according to drawing requirements and technical specification requirements;
7. and (3) checking the machining process according to the technological requirements, finishing machining, detaching the machined air distribution pipe from the milling machine fixture, and cleaning and checking.
The above embodiments are not intended to limit the scope of the present invention, and all modifications, or equivalent substitutions made on the basis of the technical solutions of the present invention should fall within the scope of the present invention.
Claims (7)
1. The utility model provides an air distribution pipe clamping method, air distribution pipe includes the main body of cylinder face form, and main body surface extends the branch distribution pipe, and the axis of branch distribution pipe is coplanar and the contained angle is first contained angle with main body axis, and the terminal surface of branch distribution pipe is waiting to process the face, waits to process the face and main body axis parallel, its characterized in that:
the adopted milling machine fixture comprises a milling machine fixture body,
the mounting underframe (1) comprises a supporting inclined plane, a compression surface and a bottom surface, wherein an included angle between the supporting inclined plane and the bottom surface is a second included angle which is complementary with the first included angle, a main pipe body of the air distribution pipe is tightly attached to the supporting inclined plane, and the two compression surfaces are parallel and distributed on two sides of the supporting inclined plane at intervals;
the positioning baffle plate (2) is positioned at the lower end of the installation underframe (1) and is intersected with the downward extension surface of the supporting inclined surface, and the positioning baffle plate (2) is detachably connected with the installation underframe (1);
the first pressing arc plate (3) is detachably connected to the supporting inclined plane and is close to the positioning baffle plate (2);
the second pressing arc plate (4) is detachably connected to the supporting inclined plane and is far away from the positioning baffle plate (2);
the pressing aluminum plate (5) is arranged between the pressing surface and the air distribution pipe;
the jacking screw (6) is in threaded connection with the compression surface, and the moving path of the jacking screw (6) is intersected with the compression aluminum plate (5);
when the air distribution pipe is clamped with the milling machine fixture, the main pipe body of the air distribution pipe is positioned between the first compression arc plate (3), the second compression arc plate (4), the bottom surface and the two compression surfaces, at the moment, the distribution branch pipe is positioned between the second compression arc plate (4) and the first compression arc plate (3), and the surface to be processed at the tail end of the distribution branch pipe, the first compression arc plate (3) and the second compression arc plate (4) are simultaneously positioned at the same side of the supporting inclined plane;
the clamping method comprises the steps of,
the method comprises the steps that firstly, a first compression arc plate (3) and a second compression arc plate (4) are detached from a milling machine fixture, an air distribution pipe is arranged on a supporting inclined plane of an installation underframe (1), the distribution branch pipe, the first compression arc plate (3) and the second compression arc plate (4) are positioned on the same side of the supporting inclined plane, and preliminary limiting and positioning are performed by using a positioning baffle plate (2);
secondly, placing a compression aluminum plate (5) between a compression surface of the installation underframe (1) and an air distribution pipe, and preliminarily positioning and pre-tightening the air distribution pipe by using a jacking screw (6);
thirdly, limiting, compressing and locking the air distribution pipe by using the first compression arc plate (3) and the second compression arc plate (4);
positioning and locking the air distribution pipe by using a jacking screw (6);
fifthly, placing the air distribution pipe and the milling machine fixture together on a milling machine for positioning and compacting;
milling a surface to be processed of the air distribution pipe;
and seventhly, checking the machining process according to the process requirement, finishing machining, detaching the machined air distribution pipe from the milling machine fixture, and cleaning and checking.
2. The air distribution tube clamping method according to claim 1, wherein: the installation underframe (1) is in a pentagonal prism shape and comprises,
a first side plate (11) positioned on the top surface of the pentagonal prism;
the second side plate (12) is positioned on the bottom surface of the pentagonal prism, the second side plate (12) is parallel to the first side plate (11), and the second side plate (12) and the first side plate (11) form two pressing surfaces on the installation underframe (1) together;
a first side surface, which is one of five side surfaces of the pentagonal prism, and forms a supporting inclined surface;
the second side surface is one of two side surfaces which are not connected with the first side surface in the five side surfaces of the pentagonal prism, and the second side surface forms a bottom surface;
and the third side surface is one of two side surfaces connected with the first side surface of the five side surfaces of the pentagonal prism, and the positioning baffle plate (2) is detachably connected to the third side surface.
3. The air distribution tube clamping method according to claim 1, wherein: the positioning baffle (2) is a flat plate and is connected with the installation underframe (1) through holes and screws at two ends of the flat plate.
4. The air distribution tube clamping method according to claim 1, wherein: the two ends of the first compaction arc plate (3) are respectively provided with an opening, the first compaction arc plate (3) is connected with the supporting inclined plane through the openings and the screws, the first compaction arc plate (3) further comprises a compaction surface, and the curvature of the compaction surface is consistent with the curvature of the surface of the main pipe body of the air distribution pipe.
5. The air distribution tube clamping method according to claim 1, wherein: the two ends of the second compaction arc plate (4) are respectively provided with an opening, the second compaction arc plate (4) is connected with the supporting inclined plane through the openings and the screws, the second compaction arc plate (4) further comprises a compaction surface, and the curvature of the compaction surface is consistent with the curvature of the surface of the main pipe body of the air distribution pipe.
6. The air distribution tube clamping method according to claim 1, wherein: the pressing aluminum plate (5) is a flat plate with two flat surfaces.
7. The air distribution tube clamping method according to claim 1, wherein: the jacking screw (6) is a screw with knurled surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210565440.6A CN114770169B (en) | 2022-05-23 | 2022-05-23 | Milling machine fixture for air distribution pipe and clamping method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210565440.6A CN114770169B (en) | 2022-05-23 | 2022-05-23 | Milling machine fixture for air distribution pipe and clamping method |
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| Publication Number | Publication Date |
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| CN114770169A CN114770169A (en) | 2022-07-22 |
| CN114770169B true CN114770169B (en) | 2023-08-04 |
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| CN107511696A (en) * | 2017-09-11 | 2017-12-26 | 江苏华阳管业股份有限公司 | A kind of skew T clamp for machining |
| CN211889081U (en) * | 2019-12-30 | 2020-11-10 | 大连林洋精密铸造有限公司 | Tee bend pipe fitting processing fixed platform that punches |
| CN215146945U (en) * | 2021-05-17 | 2021-12-14 | 无锡梯梯科技有限公司 | Processing tool with multi-angle adjusting function |
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| CN114770169A (en) | 2022-07-22 |
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