CN115741623A - Open type cabin section inner cavity angle characteristic bench worker marking system and method - Google Patents
Open type cabin section inner cavity angle characteristic bench worker marking system and method Download PDFInfo
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- CN115741623A CN115741623A CN202211467717.8A CN202211467717A CN115741623A CN 115741623 A CN115741623 A CN 115741623A CN 202211467717 A CN202211467717 A CN 202211467717A CN 115741623 A CN115741623 A CN 115741623A
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Abstract
The invention discloses a bench worker marking system and method for angular characteristics of an inner cavity of an open cabin, belongs to the technical field of machining, and aims to solve the problem that marking of characteristic machining cut-off lines of a large-diameter cylindrical revolving body designed and calibrated by taking a circumferential angle as a unit is difficult to accurately complete. Comprises a rotary table, a working table surface, a vertical column, a laser transmitter and an alignment dial indicator; the working table surface is coaxially connected with the rotary table, the cabin section blank is coaxially arranged on the working table surface, a linear laser transmitter is arranged in the center of an inner hole of the cabin section blank, angle scale marks are arranged on the working table surface, an alignment dial indicator is arranged on one side of the working table surface, and the peripheral surface of the cabin section blank is located in the measuring range of the alignment dial indicator. The cabin section blank rotates concentrically around the laser emitter, the circumferential positions of the characteristics to be processed on the cabin section blank are determined by utilizing visible laser and angle scale marks to complete scribing work, and the laser generator replaces a bench work scribing tool and is not in direct contact with a workpiece, so that the workpiece is prevented from moving, and the precision is improved.
Description
Technical Field
The invention belongs to the technical field of machining, and particularly relates to an open type cabin inner cavity angle characteristic bench worker marking system and method.
Background
The open type cabin section is a cylindrical rotary body part used by the missile, a plurality of characteristics needing to be processed exist on the inner wall of the open type cabin section, a blank of the open type cabin section can be obtained through casting or 3D printing, then machining is carried out on the blank to obtain a finished cabin section part, a bench worker needs to mark the cabin section blank before machining so as to finish the confirmation work of the machining allowance of the cabin section blank, a machining reference is determined for subsequent machining, and if the marking process finds that the machining allowance of the cabin section blank is insufficient, the subsequent machining cannot be carried out.
The cutting of the machining cut-off line of each axial machining feature allowance of the cabin section blank can be easily finished by a bench worker, but because the diameter of the cabin section blank is larger and is generally about 1 meter, the spatial position relation exists between the features to be machined on an inner cavity, the included angle between each circumferential point is difficult to accurately measure, the cutting of each feature machining cut-off line designed and calibrated by taking the circumferential angle as a unit is difficult to accurately finish, the machining allowance of the cabin section blank cannot be accurately determined, and the machining reference cannot be accurately determined for subsequent machining.
Disclosure of Invention
The invention aims to provide an open cabin section inner cavity angle characteristic benchmarking system and method, which aim to solve the problem that the marking of each characteristic machining cut-off line of a large-diameter cylindrical revolving body designed and calibrated by taking a circumferential angle as a unit is difficult to accurately finish. The technical scheme adopted by the invention is as follows:
a bench worker marking system for angle characteristics of an inner cavity of an open cabin comprises a rotary table, a working table surface, an upright post, a laser emitter and an alignment dial indicator; the rotary table is an annular rotary table, the working table surface is an annular flat plate, the working table surface is coaxially connected with the output end of the rotary table, the cabin section blank is arranged on the working table surface and is coaxially arranged with the working table surface, a stand column is arranged in a central through hole of the rotary table, the top end of the stand column penetrates through an inner hole of the working table surface and extends into the cabin section blank, the stand column and the working table surface are coaxially arranged, gaps are respectively formed between the stand column and the inner hole of the rotary table and the inner hole of the working table surface, a laser transmitter is arranged on one side of the top end of the stand column, the laser transmitter is a linear laser or a cross laser, angle scale lines are arranged on the working table surface, an alignment support is arranged on one side of the working table surface, the magnetic gauge stand is attracted on the alignment support, an alignment dial gauge is arranged on a gauge clamp of the magnetic gauge stand, and the outer peripheral face of the cabin section blank is located within the measuring range of the alignment dial gauge.
The invention also provides an open type cabin section inner cavity angle characteristic bench worker scribing method, which is realized by the open type cabin section inner cavity angle characteristic bench worker scribing system and comprises the following steps:
step 1: calibrating an angle reference line on the cabin section blank according to the processing requirement;
step 2: adjusting the position of the cabin section blank to ensure that the angle reference line is superposed with a zero degree line of the angle scale line;
and step 3: starting the rotary table to enable the cabin section blank to rotate along with the working table surface, adjusting the position of a measuring head of the alignment dial indicator and the position of the cabin section blank on the basis of ensuring the steps until the measuring head of the alignment dial indicator keeps static and the cabin section blank rotates for a circle, the measuring head of the alignment dial indicator always abuts against the periphery of the cabin section blank, the change of the indication value of the alignment dial indicator is not more than 1mm, and at the moment, the cabin section blank can be judged to be coaxial with the working table surface;
and 4, step 4: removing the alignment dial indicator, starting the laser transmitter, and enabling the laser transmitter to emit a vertical visible laser marking;
and 5: enabling the worktable to continue rotating according to an included angle a between any feature to be machined and the angle reference line, shutting down the rotary table when the angle value of the visible laser on the angle scale mark is a, and marking a machining cut-off line in the circumferential direction of the feature according to the position projected by the visible laser on the cabin section blank;
step 6: and (5) repeating the step until the marking of the circumferential machining cut-off lines of all the features to be machined is completed.
Compared with the prior art, the invention has the beneficial effects that:
and placing the cabin blank on a working table with scales. A laser transmitter is erected at the center of the rotary table, and light rays emitted by the laser transmitter are vertical light rays. The turntable drives the cabin section blank to concentrically rotate around the laser transmitter, the circumferential positions of all features to be machined on the cabin section blank are determined by utilizing visible laser and angle scale lines to complete scribing work, the laser generator replaces tools such as a height gauge, a caliper, a chemical needle and the like used by the traditional bench worker for scribing and is not in direct contact with a workpiece, the workpiece is prevented from moving, the precision is improved, and particularly for large-diameter cylindrical revolution bodies such as the cabin section blank, all feature machining cut-off lines designed and calibrated by taking circumferential angles as units can be very accurately determined.
Drawings
FIG. 1 is a front half-sectional view of the present invention;
FIG. 2 is an isometric view of the present invention;
fig. 3 is a top view of the countertop.
In the figure: 1-a working table surface, 11-angle scale lines, 2-a rotary table, 3-an upright post, 4-an alignment bracket, 5-a magnetic gauge stand, 6-an alignment dial indicator, 7-a cabin section blank, 71-a feature to be processed and 8-a laser transmitter.
Detailed Description
In order that the objects, aspects and advantages of the invention will become more apparent, the invention will be described by way of example only, and with reference to the accompanying drawings. It is to be understood that this description is made only by way of example and not as a limitation on the scope of the invention. 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 invention.
The connection mentioned in the invention is divided into fixed connection and detachable connection, the fixed connection is non-detachable connection and comprises but is not limited to folding edge connection, rivet connection, bonding connection, welding connection and other conventional fixed connection modes, the detachable connection comprises but is not limited to bolt connection, buckle connection, pin connection, hinge connection and other conventional detachment modes, when the specific connection mode is not clearly limited, the skilled person can select at least one connection mode from the existing connection modes to realize the function according to the needs. For example: the fixed connection selects welded connection, and the detachable connection selects bolted connection.
The present invention will be described in further detail with reference to the accompanying drawings, and the following examples are illustrative of the present invention, but the present invention is not limited to the following examples.
Example 1: as shown in fig. 1-3, an open cabin inner cavity angle characteristic benchmarking system comprises a rotary table 2, a working table surface 1, an upright post 3, a laser emitter 8 and an alignment dial indicator 6; the rotary table 2 is an annular rotary table, the working table surface 1 is an annular flat plate, the working table surface 1 is coaxially connected with the output end of the rotary table 2, the cabin section blank 7 is arranged on the working table surface 1 and is coaxially arranged with the working table surface 1, an upright post 3 is arranged in a central through hole of the rotary table 2, the top end of the upright post 3 penetrates through an inner hole of the working table surface 1 and extends into the cabin section blank 7, the upright post 3 is coaxially arranged with the working table surface 1, gaps are respectively arranged between the upright post 3 and the inner hole of the rotary table 2 and the inner hole of the working table surface 1, a laser emitter 8 is arranged on one side of the top end of the upright post 3, the laser emitter 8 is a linear laser or a cross linear laser, an angle scale 11 is arranged on the working table surface 1, an alignment support 4 is arranged on one side of the working table surface 1, a magnetic gauge stand 5 is attracted on the alignment support 4, an alignment dial 6 is arranged on a gauge clamp of the magnetic gauge stand 5, and the outer peripheral surface of the cabin section blank 7 is in the measurement range of the alignment dial 6.
Example 2: an open cabin section inner cavity angle characteristic bench worker marking method is realized by relying on the open cabin section inner cavity angle characteristic bench worker marking system in embodiment 1, and comprises the following steps:
step 1: calibrating an angle reference line on the cabin section blank 7 according to the processing requirement;
step 2: adjusting the position of the cabin segment blank 7 to enable the angle reference line to be superposed with a zero-degree line of the angle scale mark 11;
and 3, step 3: starting the rotary table 2, enabling the cabin section blank 7 to rotate along with the working table surface 1, adjusting the measuring head of the alignment dial indicator 6 and the position of the cabin section blank 7 on the basis of ensuring the step 2 until the measuring head of the alignment dial indicator 6 is kept static and the cabin section blank 7 rotates for a circle, the measuring head of the alignment dial indicator 6 is always abutted against the periphery of the cabin section blank 7, the indication value change of the alignment dial indicator 6 is not more than 1mm, and at the moment, the cabin section blank 7 can be judged to be coaxial with the working table surface 1;
and 4, step 4: removing the alignment dial indicator 6, starting the laser transmitter 8, and enabling the laser transmitter 8 to emit a vertical visible laser marking;
and 5: enabling the working table top 1 to continue rotating according to an included angle a between any feature 71 to be machined and the angle reference line, shutting down the rotary table 2 when the angle value of the visible laser on the angle scale mark 11 is a, and marking a machining cut-off line in the circumferential direction of the feature according to the position projected by the visible laser on the cabin section blank 7;
step 6: and repeating the step 5 until the marking of all the circumferential machining cut-off lines of the features 71 to be machined is completed.
In the prior art, only the axial machining cut-off line of the open cabin section can be determined, and if the inner cavity has characteristics and the characteristics have spatial position relation in the circumferential direction, the prior art cannot accurately determine the axial machining cut-off line.
The cabin blank 7 is placed on the work bench 1 with the scale. A laser emitter 8 is erected at the center of the rotary table 2, and light rays emitted by the laser emitter 8 are vertical light rays. The turntable 2 drives the cabin section blank piece 7 to concentrically rotate around the laser emitter 8, the visible laser and the angle scale mark 11 are utilized to determine the circumferential position of each feature 71 to be machined on the cabin section blank piece 7, the scribing work is completed, the laser generator replaces tools such as height rulers, calipers, chemical needles and the like used by traditional benchmarking, the laser generator is not in direct contact with a workpiece, the workpiece is prevented from moving, the precision is improved, and particularly for large-diameter cylindrical rotary bodies such as the cabin section blank piece 7, each feature machining cut-off line designed and calibrated by taking the circumferential angle as a unit can be very accurately determined.
The above embodiments are merely illustrative of the present patent and do not limit the scope of the patent, and those skilled in the art can make modifications to the parts thereof without departing from the spirit and scope of the patent.
Claims (2)
1. The utility model provides an open cabin section inner chamber angle characteristic bench worker marking off system which characterized in that: comprises a rotary table (2), a working table surface (1), a stand column (3), a laser transmitter (8) and an alignment dial indicator (6); turntable (2) is annular turntable, table surface (1) is annular flat plate, table surface (1) and the output coaxial of turntable (2) link to each other, cabin section blank (7) set up on table surface (1), and with table surface (1) coaxial setting, be equipped with stand (3) in the central through hole of turntable (2), the hole of table surface (1) is passed on the top of stand (3), and extend to in cabin section blank (7), stand (3) and table surface (1) coaxial setting, be equipped with the clearance between stand (3) respectively and the hole of table surface (2) and the hole of table surface (1), top one side of stand (3) is equipped with laser emitter (8), laser emitter (8) are a word line laser instrument or cross line laser instrument, be equipped with angle scale mark (11) on table surface (1), one side of table surface (1) is equipped with alignment support (4), magnetic force gauge stand (5) actuation is on alignment support (4), be equipped with the micrometer holder blank (5) on the micrometer holder (6), the micrometer holder (6) of micrometer holder (7) measuring scope is in alignment section.
2. An open cabin section inner cavity angle characteristic bench worker marking method is realized by the open cabin section inner cavity angle characteristic bench worker marking system according to claim 1, and is characterized by comprising the following steps:
step 1: calibrating an angle reference line on the cabin section blank (7) according to the processing requirement;
and 2, step: adjusting the position of the cabin section blank (7) to enable the angle reference line to coincide with a zero-degree line of the angle scale mark (11);
and step 3: starting the rotary table (2), enabling the cabin section blank (7) to rotate along with the working table top (1), adjusting the measuring head of the alignment dial indicator (6) and the position of the cabin section blank (7) on the basis of ensuring the step 2 until the measuring head of the alignment dial indicator (6) is kept static and the cabin section blank (7) rotates for a circle, wherein the measuring head of the alignment dial indicator (6) always abuts against the periphery of the cabin section blank (7), the indication value change of the alignment dial indicator (6) is not more than 1mm, and at the moment, the cabin section blank (7) can be judged to be coaxial with the working table top (1);
and 4, step 4: removing the alignment dial indicator (6), starting the laser emitter (8), and enabling the laser emitter (8) to emit a vertical visible laser marking;
and 5: enabling the working table top (1) to continue rotating according to an included angle a between any feature (71) to be machined and the angle reference line, shutting down the rotary table (2) when the angle value of the visible laser on the angle scale mark (11) is a, and marking a machining cut-off line in the circumferential direction of the feature according to the position projected by the visible laser on the cabin section blank (7);
step 6: and (5) repeating the step (5) until the peripheral machining cut-off lines of all the features (71) to be machined are marked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211467717.8A CN115741623A (en) | 2022-11-22 | 2022-11-22 | Open type cabin section inner cavity angle characteristic bench worker marking system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211467717.8A CN115741623A (en) | 2022-11-22 | 2022-11-22 | Open type cabin section inner cavity angle characteristic bench worker marking system and method |
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| Publication Number | Publication Date |
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| CN115741623A true CN115741623A (en) | 2023-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211467717.8A Pending CN115741623A (en) | 2022-11-22 | 2022-11-22 | Open type cabin section inner cavity angle characteristic bench worker marking system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116748691A (en) * | 2023-06-25 | 2023-09-15 | 北京新风航天装备有限公司 | Casting blank laser scribing method |
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2022
- 2022-11-22 CN CN202211467717.8A patent/CN115741623A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116748691A (en) * | 2023-06-25 | 2023-09-15 | 北京新风航天装备有限公司 | Casting blank laser scribing method |
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