CN113865543A - Be used for three-dimensional curved surface part to measure strutting arrangement - Google Patents
Be used for three-dimensional curved surface part to measure strutting arrangement Download PDFInfo
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- CN113865543A CN113865543A CN202111195541.0A CN202111195541A CN113865543A CN 113865543 A CN113865543 A CN 113865543A CN 202111195541 A CN202111195541 A CN 202111195541A CN 113865543 A CN113865543 A CN 113865543A
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/20—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
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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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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention belongs to the technical field of mechanical engineering, in particular to a supporting device for measuring three-dimensional curved surface parts, which comprises an industrial control microcomputer, wherein the industrial control microcomputer comprises an industrial case and a liquid crystal display screen, and is provided with three-dimensional curved surface part modeling software; the transmission mechanism and the supporting unit fixing box comprise a motor, a speed reducer, a power supply, a signal cable and the like, and are used for regulating and controlling the supporting units and controlling each supporting unit to move to a target position; the supporting unit is composed of a driving screw rod, a square body, an elastic element, a supporting head, an anti-slip cap and the like and is used for supporting the three-dimensional curved surface part. The three-dimensional curved surface part correcting device is reasonable in structure, the influence of the self weight of the part on the shape precision of the part when the part is placed can be eliminated, the three-dimensional curved surface part can be conveniently precisely measured, the precise shape of the three-dimensional curved surface part can be obtained, the accurate correction data of the die and the digifax can be more favorably obtained, and the correction efficiency of the die and the digifax can be improved.
Description
Technical Field
The invention relates to the technical field of mechanical engineering, in particular to a supporting device for measuring a three-dimensional curved surface part.
Background
The large three-dimensional curved surface part is widely applied to the fields of aerospace, railway traffic, ships and naval vessels and the like, large errors are generated on the three-dimensional curved surface part due to die manufacturing errors and the resilience of the part in the part forming process, and the part is deformed again due to the dead weight of the part when the part is placed on a platform, so that the measured data is distorted. In order to correct the die or the digital-analog more accurately, the self-weight influence factors of the parts must be eliminated before the three-dimensional curved surface parts are measured. The three-dimensional curved surface part measuring and supporting device can effectively eliminate the influence factors of the dead weight of parts, and has the principle that three-dimensional curved surface parts are discretized, a plurality of supporting spherical surfaces replace a platform to support at a single point, the supporting area of the parts is increased, and further secondary deformation caused by the dead weight of the parts is overcome.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The invention provides a three-dimensional curved surface part measurement support device, which aims to solve the problems existing in the measurement support of the existing three-dimensional curved surface part.
Therefore, the invention aims to provide a supporting device for measuring a three-dimensional curved surface part, which can eliminate the influence of the self weight of the part on the shape of the part, is convenient for the precision measurement of the three-dimensional curved surface part, obtains the precise shape of the three-dimensional curved surface part, is beneficial to obtaining the precise correction data of a die and a digital-analog, and improves the correction efficiency of the die and the digital-analog.
To solve the above technical problem, according to an aspect of the present invention, the present invention provides the following technical solutions:
a support device for three-dimensional curved surface part measurement, comprising:
the industrial control microcomputer comprises an industrial case and a liquid crystal display screen, and modeling software of the three-dimensional curved surface part is installed;
the transmission mechanism and the supporting head fixing box comprise a motor, a speed reducer, a power supply, a signal cable and the like, are connected with the industrial control microcomputer and are used for executing regulation and control on the supporting units and controlling each supporting unit to move to a target position, so that the enveloping surface formed by the supporting units is the same as the shape of the three-dimensional curved surface part;
the supporting unit is composed of a driving screw, a square body, an elastic element, a supporting head, an anti-slip cap and the like. Each supporting unit is arranged on a fixing plate with a guiding function, is connected with a coupler and a speed reducer and is used for supporting the three-dimensional curved surface part.
As a preferable aspect of the present invention, there is provided a support device for measuring a three-dimensional curved surface part, wherein: the supporting unit can be a supporting unit for three-dimensional curved surface thin plate (soft) parts and comprises a driving screw rod, a square body, a soft supporting head and the like. The driving screw is connected with the coupler and the speed reducer and used for realizing the regulation and control of the position of the supporting unit. The bottom of the square body is provided with a threaded hole for connecting with a driving screw rod and further fixing through the matching of a pin and a pin hole.
As a preferable aspect of the present invention, there is provided a support device for measuring a three-dimensional curved surface part, wherein: the supporting unit can also be used for three-dimensional curved surface medium plate parts and comprises a driving screw rod, a square body, a hard supporting head, an anti-slip cap and the like. The anti-skid cap is generally made of materials with high strength, large elasticity, small deformation and good stretching force and is completely coated on the outer surface of the hard support head so as to realize the anti-skid and self-adaptive stretching functions of the support unit.
As a preferable aspect of the present invention, there is provided a support device for measuring a three-dimensional curved surface part, wherein: the supporting unit can also be a supporting unit a for three-dimensional curved surface thick plate parts, and consists of a driving screw rod, a square body, an annular clamp spring, a hard supporting head and the like. The annular clamp spring is arranged at the bottom of the hard support head connected with the square body and used for positioning the hard support head. The hard spring is arranged between the hard support head and the drive screw rod so as to realize the self-adaptive expansion and contraction of the support unit.
As a preferable aspect of the present invention, there is provided a support device for measuring a three-dimensional curved surface part, wherein: the supporting unit b can also be used for three-dimensional curved surface thick plate parts and comprises a driving screw rod, a square body, an annular clamp spring, a hard supporting head, an elastic circular ring and the like. The annular clamp spring is arranged at the bottom of the hard support head connected with the square body and used for positioning the hard support head. The elastic ring is arranged between the hard support head and the driving screw rod to realize the self-adaptive expansion of the support unit.
As a preferable aspect of the present invention, there is provided a support device for measuring a three-dimensional curved surface part, wherein: the using method comprises the following steps:
(1) modeling in modeling software of an industrial control computer according to the shape of the three-dimensional curved surface part;
(2) the transmission mechanism and the supporting unit fixing box execute computer instructions to adjust the height of each supporting unit, so that the envelope curved surface formed by the supporting units is the same as the curved surface of the three-dimensional part;
(3) and placing the three-dimensional curved surface part to be measured on the measuring and supporting device for curved surface measurement.
Compared with the prior art, the invention has the beneficial effects that: the invention discloses a curved surface part measurement auxiliary supporting device for eliminating influence of the self weight of a part on the shape of the part. The device can effectively eliminate the part shape distortion caused by the part deformation caused by the self weight of the three-dimensional curved surface part, is favorable for improving the shape measurement precision of the three-dimensional curved surface part, reduces the modification times of a part mould and a digital-analog, and further improves the production efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise. Wherein:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a measurement state according to the present invention;
FIG. 3 is a schematic view of the connection structure of the transmission mechanism and the supporting unit according to the present invention;
FIG. 4 is a schematic structural diagram of a supporting unit for a three-dimensional curved thin (soft) plate component according to the present invention;
FIG. 5 is a schematic structural view of a supporting unit for a three-dimensional curved medium plate part according to the present invention;
FIG. 6 is a schematic structural view of a supporting unit a for a three-dimensional curved thick plate part according to the present invention;
FIG. 7 is a schematic structural view of a supporting unit b for a three-dimensional curved thick plate part according to the present invention.
In the figure: the device comprises a supporting unit 1, a transmission mechanism 2, a supporting unit fixing box 3, a three-dimensional curved surface part, a curved surface measuring instrument 4, a supporting head 5, a square body 6, a driving screw 7, a driving screw fixing seat 8, a fixing plate 9, a speed reducer 10, a motor 11, a soft supporting head 12, a pin 13, a threaded hole 14, a pin hole 15, an axial through hole 16, a hard supporting head 17, an anti-slip cap 18, a hard spring 19, a ring-shaped snap spring 20 and an elastic ring 21.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and it will be apparent to those of ordinary skill in the art that the present invention may be practiced without departing from the spirit and scope of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Next, the present invention will be described in detail with reference to the drawings, wherein for convenience of illustration, the cross-sectional view of the device structure is not enlarged partially according to the general scale, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Example 1
A support device for three-dimensional curved surface part measurement, comprising:
the industrial control microcomputer comprises an industrial case and a liquid crystal display screen, and modeling software of the three-dimensional curved surface part is installed;
the transmission mechanism and the supporting head fixing box comprise a motor, a speed reducer, a power supply, a signal cable and the like, are connected with the industrial control microcomputer, and are used for executing regulation and control on the supporting units and controlling each supporting unit to move to a target position, so that an envelope curved surface formed by each supporting unit is the same as a curved surface of the three-dimensional part;
and the supporting unit is arranged on the fixing plate with the guiding function, is connected with the coupler and the speed reducer and is used for supporting the three-dimensional curved surface part.
Specifically, the supporting unit is a supporting unit head for a three-dimensional curved surface thin plate (soft) part and comprises a driving screw rod, a square body and a soft supporting head. The driving screw rod is connected with the coupler and the speed reducer and used for realizing the regulation and control of the position of the supporting head. The bottom of the square body is provided with a threaded hole for connecting with a driving screw and fixing through a pin and a pin hole.
The characteristics of light dead weight and easy deformation under stress of the metal thin (soft) plate are considered, and the indentation is easy to generate under the action of the dead weight of the part when the metal thin (soft) plate is placed on the three-dimensional curved surface part supporting device. Therefore, a soft supporting head is adopted to replace a common rigid supporting head at the position of the supporting head (figure 4). The supporting unit structure has the advantages that: 1) after the soft supporting head is stressed and compressed, the contact area between the supporting head and the part is increased, and the generation of indentation when the part is placed is effectively avoided; 2) the friction coefficient between the soft support head and the metal part is large, so that the part is prevented from sliding during measurement; 3) the soft supporting head can also passively stretch and retract according to the self stress state to adjust the height of the supporting unit so as to ensure that the stress of each supporting unit is uniform when supporting.
Example 2
A support device for three-dimensional curved surface part measurement, comprising:
the industrial control microcomputer comprises an industrial case and a liquid crystal display screen, and modeling software of the three-dimensional curved surface part is installed;
the transmission mechanism and the supporting head fixing box comprise a motor, a speed reducer, a power supply, a signal cable and the like, are connected with the industrial control microcomputer, and are used for executing regulation and control on the supporting units and controlling each supporting unit to move to a target position, so that an envelope curved surface formed by each supporting unit is the same as a curved surface of the three-dimensional part;
and the supporting unit is arranged on the fixing plate with the guiding function, is connected with the coupler and the speed reducer and is used for supporting the three-dimensional curved surface part.
Specifically, the supporting unit is used for three-dimensional curved surface medium plate parts and comprises a driving screw rod, a square body, a hard supporting head, an anti-skid cap and the like. The anti-skid cap is generally made of materials with high strength, large elasticity, small deformation and good stretching force and is completely coated on the outer surface of the hard support head so as to realize the anti-skid and self-adaptive stretching functions of the support unit.
Because the heavy and medium plates have large self-weight, the supporting head of the heavy and medium plates is required to have certain rigidity, and a hard supporting head wrapped with an anti-skid cap is adopted at the position of the supporting head (figure 5). The supporting unit structure has the advantages that: 1) the internal hard support head can provide larger support force and meet the support requirement of the curved surface part of the medium plate; 2) the contact area between the wrapped anti-slip cap and the part is increased after the wrapped anti-slip cap is stressed and compressed, and indentation is avoided when the part is placed; 3) the friction coefficient between the anti-slip cap and the metal part is large, so that larger friction force can be provided to prevent the part from sliding during measurement; 4) the height of the corresponding supporting unit can be adjusted by the aid of elasticity of the anti-slip cap according to the stress state of each supporting head in a passive telescopic mode, so that the supporting units are uniformly stressed when supported.
Example 3
A support device for three-dimensional curved surface part measurement, comprising:
the industrial control microcomputer comprises an industrial case and a liquid crystal display screen, and modeling software of the three-dimensional curved surface part is installed;
the transmission mechanism and the supporting head fixing box comprise a motor, a speed reducer, a power supply, a signal cable and the like, are connected with the industrial control microcomputer, and are used for executing regulation and control on the supporting units and controlling each supporting unit to move to a target position, so that an envelope curved surface formed by each supporting unit is the same as a curved surface of the three-dimensional part;
and the supporting unit is arranged on the fixing plate with the guiding function, is connected with the coupler and the speed reducer and is used for supporting the three-dimensional curved surface part.
Specifically, the supporting unit can also be a supporting unit a for a three-dimensional curved surface thick plate part, and comprises a driving screw rod, a square body, an annular clamp spring, a hard supporting head and the like. The annular clamp spring is arranged at the bottom of the hard support head connected with the square body and used for positioning the hard support head. The hard spring is arranged between the hard support head and the drive screw rod so as to realize the self-adaptive expansion and contraction of the support unit.
Because the thick plate has extremely high self weight and relatively high requirement on the supporting force of the supporting units, in order to prevent secondary deformation caused by uneven stress of each supporting unit due to inaccurate shape adjustment and other external factors when three-dimensional curved surface parts are placed, a hard spring is added between the hard supporting head and the driving screw rod (figure 6). The supporting unit structure has the advantages that: 1) the hard support head can provide larger support force and meet the support requirement of the thick plate curved surface part; 2) the hard spring between the hard support head and the driving screw rod can adaptively stretch according to the stress state, the height of the support unit is automatically corrected, the stress is uniform when the support unit is supported at each position, and the secondary deformation generated when parts are placed is avoided; 3) the heavy plate parts are heavy in self weight and difficult to carry and transfer, and the hard springs play a role in buffering and damping at the moment of placing the parts, so that the collision between the supporting unit and the parts is reduced, and the service life of the supporting unit is prolonged;
example 4
A support device for three-dimensional curved surface part measurement, comprising:
the industrial control microcomputer comprises an industrial case and a liquid crystal display screen, and modeling software of the three-dimensional curved surface part is installed;
the transmission mechanism and the supporting head fixing box comprise a motor, a speed reducer, a power supply, a signal cable and the like, are connected with the industrial control microcomputer, and are used for executing regulation and control on the supporting units and controlling each supporting unit to move to a target position, so that an envelope curved surface formed by each supporting unit is the same as a curved surface of the three-dimensional part;
and the supporting unit is arranged on the fixing plate with the guiding function, is connected with the coupler and the speed reducer and is used for supporting the three-dimensional curved surface part.
Specifically, the supporting unit b can also be a supporting unit b for a three-dimensional curved surface thick plate part and comprises a driving screw rod, a square body, an annular clamp spring, a hard supporting head, an elastic circular ring and the like. The annular clamp spring is arranged at the bottom of the hard support head and used for positioning the hard support head. The elastic ring is arranged between the hard support head and the driving screw rod to realize the self-adaptive expansion of the support unit.
In order to satisfy the requirement that the support has large supporting force and also has self-adaptive telescopic function, a thicker elastic circular ring is added between the supporting head and the driving screw rod (figure 7). The supporting unit structure has the advantages that: 1) the hard support head can provide larger support force and meet the support requirement of the thick plate curved surface part; 2) the elastic ring between the hard support head and the driving screw rod can be passively stretched according to the stress magnitude, the height of the support unit is automatically corrected, the stress is uniform when the support unit is supported at each position, and secondary deformation is avoided when parts are placed; 3) the thick plate part is from heavy, and the transport shifts the difficulty, and the elastic ring plays buffering and shock attenuation effect in the part is placed in the twinkling of an eye, reduces the collision between supporting element and the part, prolongs supporting element's life.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the disclosed embodiments of the invention may be used in any combination, provided that no structural conflict exists, and the combinations are not exhaustively described in this specification merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (6)
1. A support arrangement for being used for three-dimensional curved surface part to measure, its characterized in that includes:
the industrial control microcomputer comprises an industrial case and a liquid crystal display screen, and modeling software of the three-dimensional curved surface part (3) is installed;
the transmission mechanism and the supporting unit fixing box (2) comprise a motor (11), a speed reducer (10), a power supply, a signal cable and the like, are connected with an industrial control microcomputer and are used for executing regulation and control on the supporting units (1) and controlling each supporting unit (1) to move to a target position, so that an envelope surface formed by the supporting units (1) is the same as the shape of the three-dimensional curved surface part;
the supporting unit (1) comprises a driving screw rod (7), a square body (6), an elastic element, a supporting head (5), an anti-slip cap and the like, and each supporting unit is installed on a fixing plate with a guiding function, connected with a coupler and a speed reducer and used for supporting the three-dimensional curved surface part (3).
2. The support device for measuring the three-dimensional curved surface part according to claim 1, wherein: the supporting unit (1) can be a supporting unit for three-dimensional curved surface thin plate (soft) parts and comprises a driving screw rod (7), a square body (6), a soft supporting head (12) and the like, the driving screw rod (7) is connected with a coupler and a speed reducer (10) and used for adjusting and controlling the position of the supporting unit, a threaded hole (14) is machined in the bottom of the square body (6) and used for being connected with the driving screw rod (7) and further fixed through the matching of a pin (13) and a pin hole (15).
3. The support device for measuring the three-dimensional curved surface part according to claim 1, wherein: the supporting unit (1) can also be a supporting unit for three-dimensional curved surface medium plate parts, and is composed of a driving screw rod (7), a square body (6), a hard supporting head (17), an anti-slip cap (18) and the like, wherein the anti-slip cap (18) is completely coated on the outer surface of the hard supporting head (17) so as to realize the anti-slip and self-adaptive telescopic functions of the supporting unit.
4. The support device for measuring the three-dimensional curved surface part according to claim 1, wherein: the supporting unit (1) can also be a supporting unit a for three-dimensional curved surface thick plate parts, and is composed of a driving screw rod (7), a square body (6), an annular clamp spring (20), a hard spring (19), a hard supporting head (17) and the like, wherein the annular clamp spring (20) is arranged at the bottom position where the hard supporting head (17) is connected with the square body (6) and used for positioning the hard supporting head (17), and the hard spring (19) is arranged between the hard supporting head (17) and the driving screw rod (7) so as to realize the self-adaptive expansion of the supporting unit.
5. The support device for measuring the three-dimensional curved surface part according to claim 1, wherein: the supporting unit (1) can also be a supporting unit b for a three-dimensional curved surface thick plate part, and is composed of a driving screw rod (7), a square body (6), an annular clamp spring (20), a hard supporting head (17) and an elastic circular ring (21), wherein the annular clamp spring (20) is arranged at the bottom position where the hard supporting head (17) is connected with the square body (6) and used for positioning the hard supporting head (17), and the elastic circular ring (21) is arranged between the hard supporting head (17) and the driving screw rod (7) so as to realize self-adaptive expansion and contraction of the supporting unit.
6. The support device for measuring the three-dimensional curved surface part according to any one of claims 1 to 5, wherein: the using method comprises the following steps:
(1) modeling in modeling software of an industrial control computer according to the shape of the three-dimensional curved surface part (3);
(2) the transmission mechanism and the supporting unit fixing box (2) execute computer instructions to adjust the height of each supporting unit, so that the envelope curved surface formed by the supporting units is the same as the curved surface of the three-dimensional part;
(3) and placing the three-dimensional curved surface part (3) to be measured on the measuring and supporting device, and measuring by a curved surface measuring instrument (4).
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| CN202111195541.0A CN113865543A (en) | 2021-10-14 | 2021-10-14 | Be used for three-dimensional curved surface part to measure strutting arrangement |
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| CN202111195541.0A CN113865543A (en) | 2021-10-14 | 2021-10-14 | Be used for three-dimensional curved surface part to measure strutting arrangement |
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| CN105108674A (en) * | 2015-08-03 | 2015-12-02 | 合肥鑫晟光电科技有限公司 | Support adsorption component, support device and operation method thereof |
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Application publication date: 20211231 |