CN114061393A - Marking inspection clamp for precision casting with complex structure - Google Patents
Marking inspection clamp for precision casting with complex structure Download PDFInfo
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- CN114061393A CN114061393A CN202111343560.3A CN202111343560A CN114061393A CN 114061393 A CN114061393 A CN 114061393A CN 202111343560 A CN202111343560 A CN 202111343560A CN 114061393 A CN114061393 A CN 114061393A
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- chassis
- spoke
- positioning pin
- outer ring
- mandrel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
A marking inspection clamp for a precision casting with a complex structure comprises the following structures: the marking inspection fixture for the precision casting with the complex structure solves the problem of rough material inspection of a precision casting casing with a large complex structure and fills the blank that the angular position of the support plate cannot be inspected in the conventional marking inspection. The invention abandons the original way of manually marking and checking the blank machining allowance by a fitter, not only greatly improves the production efficiency, but also greatly reduces the detection difficulty. The invention improves the quality and the processing efficiency of parts while reducing the working strength of operators and gets rid of the lagging situation of the original processing mode.
Description
Technical Field
The invention relates to the technical field of aerospace and aviation, and particularly provides an inspection clamp suitable for large-scale complex casting structure casing parts.
Background
With the gradual maturity of the manufacturing technology of aerospace engines, the overall structure of the casing type parts is also developing towards the direction of complex structure and diversified processing method, and more parts adopt more complex design structures. Due to the actual processing requirement of parts, most of precision castings need to perform marking inspection on rough materials before formal machining, and the purpose is to determine the allowance of the rough materials through marking inspection and find out the insufficient allowance phenomenon existing in the castings in time. In addition, in the process of processing parts by using rough materials as precision castings, the phenomenon that local allowance is insufficient due to the fact that the parts are complex in structure, the rough material casting difficulty is high and the like easily occurs. In order to meet the machining requirements of parts, the castings need to be subjected to marking inspection before machining so as to determine whether the machining allowance can meet the machining requirements.
However, at present, the domestic marking inspection method is still manually performed by a fitter, and the fitter uses general tools such as an index plate, a vernier caliper and a height gauge on a fitter table to perform marking inspection. The whole process requires a lot of size calculation by the operator and is completely dependent on manual completion by the operator. Meanwhile, the structure of the detected casting is complex, the size is large, the difficulty of the process of marking and checking the casting is high, and the checking time is long. Moreover, the influence of human factors is large in the inspection process, the requirements on the technical level and the processing experience of an operator are strict, the difficulty of the scribing inspection work process is large, the processing efficiency is extremely low, and the scribing inspection of an average single part needs 12 hours. This situation seriously affects the overall machining cycle and quality of the parts. Even if the time is long, in the conventional scribing inspection, the angular position of the support plate cannot be inspected, and the inspection content is always in a blank state. The current machining state of the parts always leads the machining technology of the parts to be in a lagging level, high-efficiency and high-precision machining cannot be realized in a true sense, and the parts are low in production efficiency, high in cost and poor in machining quality.
Disclosure of Invention
The invention aims to provide a rough material inspection clamp which abandons a manual marking method of a bench worker, so that the rough material allowance inspection method is greatly improved, the influence of human factors is reduced, the operation difficulty is greatly reduced, and the processing efficiency is improved.
The invention particularly provides a marking inspection clamp for a precision casting with a complex structure, which comprises the following structures:
a. alignment measures are as follows: in the prior art, in the process of scribing inspection, an operator needs to determine a scribing reference of a part according to an end face, an inner hole and an angular reference hole on a blank before scribing, and then scribing is carried out on the reference.
The tool chassis 1 with the alignment function is of a double-layer structure, different layers are arranged in parallel, and the different layers are riveted or welded through bolts. The outer ring of the chassis 1 is connected via spokes 2 to a central web 3, which is open in the center of the chassis central hole 4. The outer ring positioning pin 5 and the spoke positioning pin 6 are respectively arranged on the outer ring of the chassis 1 and the spoke 2 and can be matched with the angular positioning holes in the end face of the part, the circular arcs where the outer ring positioning pin 5 and the spoke positioning pin 6 are respectively located form concentric circles with the central hole 4 of the chassis, and the angular direction and the radial reference of the part can be determined simultaneously through the structural design. An auxiliary support 7 is fixed on the chassis 1, and the auxiliary support 7 is positioned on the same plane with the axial positioning surfaces of the outer ring positioning pin 5 and the spoke positioning pin 6 to determine the axial reference of the part.
b. Axial dimension inspection measures: the axial and radial dimensions in the part are the main machining dimensions of the part, and the machining allowance confirmation of this part is particularly important. In order to meet the inspection requirement of the part of the size conveniently and quickly, the central hole 4 of the chassis is inserted with the mandrel 8, the axis of the mandrel 8 is coaxial with the axis of the central hole 4 of the chassis, and the coincidence of the center of the mandrel 8 and the center of a part can be met during the blank inspection. Several scribes 10 having different axial heights are mounted on the mandrel 8 perpendicular to the axis of the mandrel 8. The axial height of each scribe pin is the same as the axial dimension of the part being inspected. The structural design meets the inspection requirement of the axial dimension of the part.
c. Radial dimension inspection measures: since the surface on which the radial dimension is located is on the end face of the part, unlike the axial dimension, existing mandrel structures do not satisfy the inspection of the radial dimension. A cross beam 9 is fixed at the top end of the mandrel 8, and the cross beam 9 can rotate by taking the mandrel 8 as a circle center. Several scribes 10 are fixed at the bottom of the beam 9 according to the radial dimension to be checked. The cross beam and the mandrel are in precise fit, and fit errors are reduced to the minimum, so that the inspection precision is increased. When in use, the cross beam can rotate around the mandrel, so that the radial dimension is checked.
d. And (3) carrying out angular dimension inspection measures on the support plate: in the conventional scribing inspection, the angular position of the support plate cannot be inspected, and the inspection content is always in a blank state. The supporting plate type surface sample plate is manufactured according to the theoretical type surface design of each supporting plate, the supporting plate type surface sample plate 11 is horizontally arranged on the support 12 through the fixing bolt according to the theoretical position, the supporting plate type surface sample plate 11 can horizontally move along the fixing bolt, and the part assembling and disassembling and the size detection are facilitated. The support 12 is fixed on the outer ring of the chassis 1, and the central axis of the fixing bolt and the center of the central hole 4 of the chassis form a straight line. When the size is checked, the profile template slides to the part support plate, whether the support plate is overlapped with the profile template or not is observed, and therefore the angular deviation condition of the part support plate is judged.
Specifically, the auxiliary support 7 is disposed on the spoke 2 and on the same plane as the outer ring positioning pin 5 and the spoke positioning pin 6.
The outer ring positioning pin 5 is at least provided with 3 groups. The spoke positioning pins 6 are provided in at least 3 sets. The auxiliary supports 7 are provided in at least 4 groups.
In particular, the cross beam 9 is overall triangular.
The marking inspection clamp for the precision casting with the complex structure can solve the problems of high marking inspection difficulty, long processing period and the like of the precision casting with the complex structure. The invention can make a solution according to the position and the characteristics of the inspected size through the analysis of the complex structure of the precision casting rough material.
The marking inspection clamp for the precision casting with the complex structure fills the blank that the angular position of the support plate cannot be inspected in the conventional marking inspection. The invention abandons the original way of manually marking and checking the blank machining allowance by a fitter, not only greatly improves the production efficiency, but also greatly reduces the detection difficulty. The invention improves the quality and the processing efficiency of parts while reducing the working strength of operators and gets rid of the lagging situation of the original processing mode.
Drawings
The invention is described in further detail below with reference to the accompanying drawings:
FIG. 1 is a schematic view of the structure of the chassis of the present invention;
FIG. 2 is a schematic view of a mandrel construction of the present invention;
FIG. 3 is a schematic view of the measurement structure of the present invention;
FIG. 4 is a schematic view of a template structure of the support plate of the present invention;
FIG. 5 is a schematic view of the overall cross-sectional structure of the present invention;
FIG. 6 is a schematic three-dimensional structure of the present invention.
Detailed Description
Description of the symbols of the drawings:
1 chassis, 2 spokes, 3 spokes, 4 chassis center holes, 5 outer ring positioning pins, 6 spoke positioning pins, 7 auxiliary supports, 8 mandrels, 9 cross beams, 10 scribes, 11 support plate type surface templates and 12 supports.
Example 1
The purpose of this embodiment is to provide a blank inspection anchor clamps that abandons the manual marking method of pincers worker, make blank surplus inspection method have by a wide margin improvement, reduced the influence of human factor, greatly reduced the operation degree of difficulty, improved machining efficiency.
The embodiment specifically provides a fine casting marking inspection clamp with a complex structure, which comprises the following structures:
a. alignment measures are as follows: in the prior art, in the process of scribing inspection, an operator needs to determine a scribing reference of a part according to an end face, an inner hole and an angular reference hole on a blank before scribing, and then scribing is carried out on the reference.
The tool chassis 1 with the alignment function is of a double-layer structure, different layers are arranged in parallel, and the tool chassis is riveted or welded through bolts. The outer ring of the chassis 1 is connected via spokes 2 to a central web 3, which is open in the center of the chassis central hole 4. The outer ring positioning pin 5 and the spoke positioning pin 6 are respectively arranged on the outer ring of the chassis 1 and the spoke 2 and can be matched with the angular positioning holes in the end face of the part, the circular arcs where the outer ring positioning pin 5 and the spoke positioning pin 6 are respectively located form concentric circles with the central hole 4 of the chassis, and the angular direction and the radial reference of the part can be determined simultaneously through the structural design. An auxiliary support 7 is fixed on the chassis 1, and the auxiliary support 7 is positioned on the same plane with the axial positioning surfaces of the outer ring positioning pin 5 and the spoke positioning pin 6 to determine the axial reference of the part.
b. Axial dimension inspection measures: the axial and radial dimensions in the part are the main machining dimensions of the part, and the machining allowance confirmation of this part is particularly important. In order to meet the inspection requirement of the part of the size conveniently and quickly, the central hole 4 of the chassis is inserted with the mandrel 8, the axis of the mandrel 8 is coaxial with the axis of the central hole 4 of the chassis, and the coincidence of the center of the mandrel 8 and the center of a part can be met during the blank inspection. Several scribes 10 having different axial heights are mounted on the mandrel 8 perpendicular to the axis of the mandrel 8. The axial height of each scribe pin is the same as the axial dimension of the part being inspected. The structural design meets the inspection requirement of the axial dimension of the part.
c. Radial dimension inspection measures: since the surface on which the radial dimension is located is on the end face of the part, unlike the axial dimension, existing mandrel structures do not satisfy the inspection of the radial dimension. A cross beam 9 is fixed at the top end of the mandrel 8, and the cross beam 9 can rotate by taking the mandrel 8 as a circle center. Several scribes 10 are fixed at the bottom of the beam 9 according to the radial dimension to be checked. The cross beam and the mandrel are in precise fit, and fit errors are reduced to the minimum, so that the inspection precision is increased. When in use, the cross beam can rotate around the mandrel, so that the radial dimension is checked.
d. And (3) carrying out angular dimension inspection measures on the support plate: in the conventional scribing inspection, the angular position of the support plate cannot be inspected, and the inspection content is always in a blank state. The supporting plate type surface sample plate is manufactured according to the theoretical type surface design of each supporting plate, the supporting plate type surface sample plate 11 is horizontally arranged on the support 12 through the fixing bolt according to the theoretical position, the supporting plate type surface sample plate 11 can horizontally move along the fixing bolt, and the part assembling and disassembling and the size detection are facilitated. The support 12 is fixed on the outer ring of the chassis 1, and the central axis of the fixing bolt and the center of the central hole 4 of the chassis form a straight line. When the size is checked, the profile template slides to the part support plate, whether the support plate is overlapped with the profile template or not is observed, and therefore the angular deviation condition of the part support plate is judged.
Specifically, the auxiliary support 7 is disposed on the spoke 2 and on the same plane as the outer ring positioning pin 5 and the spoke positioning pin 6.
The outer ring positioning pin 5 is at least provided with 3 groups. The spoke positioning pins 6 are provided in at least 3 sets. The auxiliary supports 7 are provided in at least 4 groups.
In particular, the cross beam 9 is overall triangular.
The complex-structure precision casting marking inspection clamp solves the problem of blank inspection of a large complex-structure precision casting casing, and fills the gap that the angular position of a support plate cannot be inspected in the conventional marking inspection. The embodiment abandons the original mode that the bench worker manually marked the line and checks the blank machining allowance, not only improves on production efficiency by a wide margin, but also greatly reduces the detection difficulty. The embodiment improves the quality and the processing efficiency of parts while reducing the working strength of operators, and gets rid of the lagging situation of the original processing mode.
Example 2
The operation flow of this embodiment is as follows:
1. the inspection process of the size of the wool is analyzed to determine the size to be detected and the specific position of each surface.
2. Based on the dimensions and surfaces detected, a general implementation is made. Aiming at the characteristics of parts, a chassis structure capable of carrying out primary positioning without secondary alignment is established, and the chassis structure comprises positioning pins, auxiliary supports and the like.
3. And aiming at the detected size and surface, an axial size detection scheme taking the mandrel and the detection scriber as main structural features is formulated.
4. A radial dimension detection scheme taking the mandrel, the cross beam and the detection scriber as main structural features is formulated, and the radial dimension detection scheme comprises information such as the size of the cross beam, the size of the mandrel, the position and the size of the scriber and the like.
5. And establishing and implementing a supporting plate angular inspection scheme taking the profile template and the support as main structures. According to the structure of the woolen support plate, the support plate type surface sample plates with the same shape and size are appointed, the angle of each support plate type surface sample plate is adjusted to be consistent, and the angle of one support plate in the woolen is adjusted to be consistent.
6. And (5) carrying out scribing detection on the wool.
The rest of the structure, technical solution, implementation mode and expected effect of the present example are the same as those of example 1.
Example 3
In the embodiment, 12 support plates are uniformly distributed on the circumference of the part to be detected, 12 support plate type surface templates are designed and manufactured according to the theoretical type surface of each support plate, the templates are assembled on the chassis through the support according to the theoretical positions, the type surface templates can slide on the support along the diameter direction of the part, and the part assembling and disassembling and size detection are facilitated. When the size is checked, the profile template slides to the part support plate, whether the support plate is overlapped with the profile template or not is observed, and therefore the angular deviation condition of the part support plate is judged.
The rest of the structure, technical solution, implementation mode and expected effect of the present example are the same as those of example 1.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a complicated structure precision casting marking off inspection anchor clamps which characterized in that:
a. alignment measures are as follows:
the chassis (1) is of a double-layer structure, different layers are arranged in parallel and riveted or welded through bolts; the outer ring of the chassis (1) is connected to a spoke plate (3) at the center through a spoke (2), and a chassis center hole (4) is formed in the center of the spoke plate; an outer ring positioning pin (5) and a spoke positioning pin (6) are respectively arranged on an outer ring and a spoke (2) of the chassis (1), and arcs where the outer ring positioning pin (5) and the spoke positioning pin (6) are respectively located form concentric circles with a chassis center hole (4); an auxiliary support (7) is fixed on the chassis (1), and the auxiliary support (7) and the axial positioning surfaces of the outer ring positioning pin (5) and the spoke positioning pin (6) are on the same plane;
b. axial dimension inspection measures:
a mandrel (8) is inserted into the central hole (4) of the chassis, and the axis of the mandrel (8) is coaxial with the axis of the central hole (4) of the chassis; mounting scribes (10) with different axial heights on the mandrel (8) on an axis perpendicular to the mandrel (8);
c. radial dimension inspection measures:
a cross beam (9) is fixed at the top end of the mandrel (8), and the cross beam (9) can rotate by taking the mandrel (8) as a circle center; a scriber (10) is fixed at the bottom of the cross beam (9);
d. and (3) carrying out angular dimension inspection measures on the support plate:
horizontally installing the support plate type surface template (11) on a support (12) through a fixing bolt, wherein the support plate type surface template (11) can horizontally move along the fixing bolt; the support (12) is fixed on the outer ring of the chassis (1), and the central axis of the fixing bolt is in line with the center of the chassis central hole (4).
2. The fixture of claim 1, wherein: the auxiliary support (7) is arranged on the spoke (2) and is positioned on the same plane with the outer ring positioning pin (5) and the spoke positioning pin (6).
3. The fixture of claim 1, wherein: the outer ring positioning pin (5) is at least provided with 3 groups.
4. The fixture of claim 1, wherein: the spoke positioning pins (6) are at least provided with 3 groups.
5. The fixture of claim 1, wherein: the auxiliary supports (7) are at least provided with 4 groups.
6. The fixture of claim 1, wherein: the cross beam (9) is integrally triangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111343560.3A CN114061393A (en) | 2021-11-13 | 2021-11-13 | Marking inspection clamp for precision casting with complex structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111343560.3A CN114061393A (en) | 2021-11-13 | 2021-11-13 | Marking inspection clamp for precision casting with complex structure |
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| Publication Number | Publication Date |
|---|---|
| CN114061393A true CN114061393A (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111343560.3A Pending CN114061393A (en) | 2021-11-13 | 2021-11-13 | Marking inspection clamp for precision casting with complex structure |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19641815A1 (en) * | 1996-10-10 | 1998-04-16 | Frank Dr Budei | Method for determining thickness of surface coatings |
| KR20060130908A (en) * | 2005-06-09 | 2006-12-20 | 대한민국(관리부서:농촌진흥청장) | Body condition score checking tool hanwoo and milk cows |
| CN102019627A (en) * | 2009-09-11 | 2011-04-20 | 上海边光实业有限公司 | Marking device |
| CN102363300A (en) * | 2011-10-09 | 2012-02-29 | 南京汽轮电机(集团)有限责任公司 | Three-coordinate line drawing device |
| CN102528787A (en) * | 2011-12-30 | 2012-07-04 | 太原轨道交通装备有限责任公司 | Center measuring device |
| CN109551450A (en) * | 2018-11-29 | 2019-04-02 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of labyrinth precision castings scribing inspection device and method |
| CN112504051A (en) * | 2020-11-17 | 2021-03-16 | 中国航发沈阳黎明航空发动机有限责任公司 | Scribing inspection device and method for spoke type casing parts |
-
2021
- 2021-11-13 CN CN202111343560.3A patent/CN114061393A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19641815A1 (en) * | 1996-10-10 | 1998-04-16 | Frank Dr Budei | Method for determining thickness of surface coatings |
| KR20060130908A (en) * | 2005-06-09 | 2006-12-20 | 대한민국(관리부서:농촌진흥청장) | Body condition score checking tool hanwoo and milk cows |
| CN102019627A (en) * | 2009-09-11 | 2011-04-20 | 上海边光实业有限公司 | Marking device |
| CN102363300A (en) * | 2011-10-09 | 2012-02-29 | 南京汽轮电机(集团)有限责任公司 | Three-coordinate line drawing device |
| CN102528787A (en) * | 2011-12-30 | 2012-07-04 | 太原轨道交通装备有限责任公司 | Center measuring device |
| CN109551450A (en) * | 2018-11-29 | 2019-04-02 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of labyrinth precision castings scribing inspection device and method |
| CN112504051A (en) * | 2020-11-17 | 2021-03-16 | 中国航发沈阳黎明航空发动机有限责任公司 | Scribing inspection device and method for spoke type casing parts |
Non-Patent Citations (1)
| Title |
|---|
| 王涛;: "一种测量直角尺垂直度的便捷装置", 品牌与标准化 * |
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