Automatic composite measurement rotary table

Abstract

The invention relates to the technical field of mechanical assembly measurement, in particular to an automatic composite measurement rotary table. The invention provides an automatic composite measurement rotary table which comprises a base fixedly installed on the ground. The stand column is fixedly mounted on the base; the air floating rotary table is fixedly mounted on the base; the four-dimensional adjusting table is fixed above the air floating rotary table and is used for adjusting the orientation of the component to be detected; the three-jaw chuck is fixed above the four-dimensional adjusting table and is used for fixing components to be tested; the flexible supporting mechanism is used for carrying out auxiliary supporting on the to-be-tested component when the to-be-tested component is assembled; wherein the plurality of measuring cross arms are respectively assembled on two sides of the stand column and point to the center of the rotary table; and a plurality of measuring heads are assembled at the tail ends of the plurality of measuring cross arms and are used for detecting to-be-measured components on the air-floating rotary table. The automatic composite measurement rotary table provided by the invention not only improves the rotor assembly and measurement efficiency, but also ensures the measurement precision and stability.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical assembly measurement, and more specifically, to an automated composite measurement turntable. Background Art

[0002] The rotor components of large rotating machinery equipment have relatively large sizes and significant weights. For example, the diameter of an aero-engine rotor is generally in the range of 1 - 2 m, the height is in the range of 2 - 3 m, and the weight reaches several hundred kilograms or more. The geometric inspection items of these rotor components include the measurement of geometric dimensions (diameter, height) and circular runout (radial, vertical, oblique).

[0003] In traditional measurement methods, the measurement of geometric dimensions is usually carried out manually using standard measuring tools or coordinate measuring machines, while the measurement of circular runout generally uses an air-bearing turntable to drive the rotor to rotate and is completed by a contact probe on a cross arm. However, since different devices are used for the measured items, this method requires multiple hoisting and clamping of the engine rotor, resulting in cumbersome measurement steps and low measurement efficiency.

[0004] In addition, since there are many components of the engine rotor, geometric measurement of all parts needs to be carried out before assembly, and the assembly process also requires the assembly and geometric measurement of different hierarchical components. This makes the entire process require repeated hoisting and clamping between the assembly mounting seat and the geometric measurement equipment, further increasing the workload and complexity.

[0005] Therefore, it is necessary to design a composite measurement turntable device suitable for large rotating components to replace the traditional bulky assembly mounting seat. Summary of the Invention

[0006] The purpose of the present invention is to provide an automated composite measurement turntable to solve the problems of cumbersome measurement steps and low test efficiency in the geometric measurement of large rotating components in the prior art.

[0007] To achieve the above purpose, the present invention provides an automated composite measurement turntable, including a base, a column, an air-bearing turntable, a four-dimensional adjustment table, a three-jaw chuck, a flexible support mechanism, a plurality of measurement cross arms, and a plurality of probes:

[0008] The base is fixedly installed on the ground;

[0009] The column is fixedly installed on the base;

[0010] The air-bearing turntable is fixedly installed on the base;

[0011] The four-dimensional adjustment table is fixed above the air-bearing turntable and is used to adjust the orientation of the component to be measured;

[0012] The three-jaw chuck is fixed above the four-dimensional adjustment table and is used to fix the zero-component to be measured.

[0013] The flexible support mechanism is used to assist in supporting the zero-component to be measured when assembling the zero-component to be measured.

[0014] Among them, the several measuring cross arms are respectively assembled on both sides of the column and point to the center of the turntable.

[0015] The ends of the several measuring cross arms are assembled with several measuring heads to detect the zero-component to be measured on the air-bearing turntable.

[0016] In one embodiment, the base is a granite base.

[0017] The column is a granite column.

[0018] The measuring cross arm adopts a granite air-bearing structure.

[0019] In one embodiment, the cross-section of the column is a trapezoidal structure.

[0020] The several measuring cross arms are respectively assembled on both sides of the waist of the column.

[0021] The included angle between the measuring cross arms on both sides of the column pointing to the center of the turntable is an acute angle.

[0022] In one embodiment, the flexible support mechanism includes a support base, a support cover plate, a support spring block, a support adjustment screw, and a support return spring module:

[0023] The support spring block is installed on the support base and is connected to the support return spring module, and is used to clamp the zero-component to be measured.

[0024] The support return spring module applies a force away from the center to the support spring block.

[0025] The support cover plate is installed on the support base through the support adjustment screw.

[0026] Among them, the side surface of the support cover plate is an inclined surface and fits with the side surface of the support spring block.

[0027] In one embodiment, the support base has a through-hole structure in the middle.

[0028] The number of the support spring blocks is multiple, and they are circumferentially arranged at the through-hole position of the support base and are used to clamp the zero-component to be measured.

[0029] In one embodiment, the support spring block has a hollow structure inside.

[0030] The support return spring module is arranged inside the hollow structure and applies a force away from the center to the side wall of the support spring block.

[0031] In one embodiment, during the assembly stage, the support adjustment screw is tightened, and the support cover plate moves closer to the support base, pushing the support spring block towards the center, and the support spring block clamps the part.

[0032] In one embodiment, during the measurement stage, the support adjustment screw is loosened, and the support cover plate moves away from the support base. The support spring block is pulled away from the center by the support reset spring module, and the support spring block releases the part.

[0033] In one embodiment, each measurement cross arm includes an air-bearing cross arm and a measurement arm:

[0034] The air-bearing cross arm moves vertically along the column;

[0035] The measurement arm moves radially along the air-bearing cross arm.

[0036] In one embodiment, the end of the measurement cross arm is equipped with a standard probe mounting interface:

[0037] The standard probe mounting interface is used to mount a contact probe and / or a non-contact probe.

[0038] An automated composite measurement turntable provided by the present invention is designed for the rotor assembly requirements, has a high load capacity, can achieve firm vertical and radial clamping, and a circumferential anti-rotation function, can support the assembly and disassembly operations of rotor parts; can meet the geometric measurement requirements of rotor parts and components, and by conveniently changing the clamping conditions, realize the free rotation of the rotor under the lower support (vertical and radial constraints), and further support geometric dimension and runout measurement, which not only improves the efficiency of rotor assembly and measurement, but also ensures the accuracy and stability of measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The above-mentioned and other features, properties and advantages of the present invention will become more obvious through the following description in conjunction with the drawings and embodiments. The same reference numerals in the drawings always represent the same features, where:

[0040] Figure 1 Discloses a structural diagram of an automated composite measurement turntable according to an embodiment of the present invention;

[0041] Figure 2 Discloses a top view of an automated composite measurement turntable according to an embodiment of the present invention;

[0042] Figure 3a Discloses a schematic diagram of the first process of assembly and measurement of an automated composite measurement turntable according to an embodiment of the present invention;

[0043] Figure 3bSchematic diagram of the second process of assembly measurement of the automated composite measurement turntable according to an embodiment of the present invention;

[0044] Figure 3c Schematic diagram of the third process of assembly measurement of the automated composite measurement turntable according to an embodiment of the present invention;

[0045] Figure 4a Schematic diagram of the structure of the flexible support mechanism without the support cover plate installed during the assembly stage according to an embodiment of the present invention;

[0046] Figure 4b Schematic diagram of the complete structure of the flexible support mechanism during the assembly stage according to an embodiment of the present invention;

[0047] Figure 4c Partial cross-sectional view of the flexible support mechanism according to an embodiment of the present invention;

[0048] Figure 5 Front view of the automated composite measurement turntable according to an embodiment of the present invention.

[0049] The meanings of the reference numerals in the figure are as follows:

[0050] 1 Granite base;

[0051] 2 Granite column;

[0052] 3 Air-bearing turntable;

[0053] 4 Four-dimensional adjustment table;

[0054] 5 Three-jaw chuck;

[0055] 6 Flexible support mechanism;

[0056] 61 Support base;

[0057] 62 Support cover plate;

[0058] 63 Support spring block;

[0059] 64 Support adjustment screw;

[0060] 65 Support reset spring module;

[0061] 7 Left measurement cross arm;

[0062] 8 Right measurement cross arm;

[0063] 9 Coordinate measuring probe;

[0064] 10 Laser profiler;

[0065] 11 Rotary component;

[0066] 111 First rotor part;

[0067] 112 The second rotor part;

[0068] 12 The air - floating cross - arm;

[0069] 13 The measuring arm;

[0070] 14 The control cabinet. Detailed implementation manners

[0071] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the invention and are not used to limit the invention.

[0072] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above - mentioned terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0073] An automated composite measuring turntable suitable for large - scale rotating components proposed by the present invention has high load - bearing capacity, high reliability, and can achieve precise rotor assembly on the turntable. By vertically completing the firm clamping of the rotor assembly in the assembled and disassembled states, the problem of integrated rotor installation and measurement is solved. It can realize the inspection of key dimensions in place quickly while assembling the disk - drum components of the rotor, ensuring the rotor assembly quality and greatly improving the assembly efficiency at the same time. This equipment reduces the operation difficulty and workload, and can replace the traditional heavy assembly mounting base, which can not only improve the measurement efficiency and accuracy, but also reduce the operation difficulty and workload.

[0074] Figure 1 And Figure 2 respectively disclose the structure diagram and top view of the automated composite measuring turntable according to an embodiment of the present invention. As Figure 1 And Figure 2 shown, an automated composite measuring turntable proposed by the present invention includes: a granite base 1, a granite column 2, an air - floating turntable 3, a four - dimensional adjustment table 4, a three - jaw chuck 5, a flexible support mechanism 6, a left measuring cross - arm 7, a right measuring cross - arm 8, a three - coordinate scanning probe 9, a laser profiler 10, and a rotating component 11:

[0075] The granite base 1 is fixedly installed on the ground;

[0076] The granite column 2 is fixedly installed on the granite base 1;

[0077] The air-bearing turntable 3 is fixedly installed on the granite base 1, and more specifically, is embedded in the granite base 1;

[0078] The four-dimensional adjustment table 4 is fixed above the air-bearing turntable 3 and is used to adjust the orientation of the component to be measured;

[0079] The three-jaw chuck 5 is fixed above the four-dimensional adjustment table 4 and is used to fix the component to be measured;

[0080] The flexible support mechanism 6 is used to assist in supporting the component to be measured when assembling the component to be measured;

[0081] Among them, the left measuring cross arm 7 and the right measuring cross arm 8 are respectively assembled on both sides of the granite column 2 and point to the center of the turntable;

[0082] Several measuring heads are assembled at the ends of the left measuring cross arm 7 and the right measuring cross arm 8 to detect the component to be measured on the air-bearing turntable 3.

[0083] In this embodiment, several measuring heads include a coordinate measuring probe 9 and a laser profiler 10.

[0084] In this embodiment, the laser profiler 10 is arranged at the end of the left measuring cross arm 7, and the coordinate measuring probe 9 is arranged at the end of the right measuring cross arm 8.

[0085] The laser profiler 10 includes a point laser and a line laser. The point laser is suitable for measuring small areas or local details, while the line laser can quickly scan large areas.

[0086] In this embodiment, the component to be measured is a rotating component 11, which includes rotor parts such as a rotor.

[0087] The three-jaw chuck 5 is fixed above the four-dimensional adjustment table 4, and the rotating component 11 such as a rotor is fixed by the jaws of the three-jaw chuck 5. The flexible support mechanism 6 is used for auxiliary support during rotor assembly, and the control cabinet 14 controls the air-bearing turntable 3.

[0088] In this embodiment, the base of the automated composite measuring device is a granite base, the column is a granite column, and the measuring cross arm adopts a granite air-bearing structure. The granite structure has the characteristics of high rigidity, low friction, high precision, and low thermal expansion coefficient, which is convenient for precise control.

[0089] As Figure 2 shown, in this embodiment, the cross-section of the granite column 2 is a trapezoidal structure and is vertically fixed on the granite base 1;

[0090] Different from the conventional rectangular structure, the two sides of the waist of the trapezoidal structure of the granite column 2 are equipped with two measuring cross arms, namely, two left measuring cross arms 7 and two right measuring cross arms 8, for a total of four measuring cross arms.

[0091] The automated composite measuring device of the present invention adopts a structural form in which a group of granite columns are equipped with four independently driven measuring cross arms. The four measuring cross arms are all located on the same granite column. Compared with the traditional structural form with two columns, it is more convenient to load and unload workpieces and clamp rotors. At the same time, the operating space is more abundant, the structure is more reasonable, and the measuring accuracy is higher.

[0092] The four measuring cross arms simultaneously point to the center of the rotor to be measured, and the angles at which the measuring cross arms on the two sides of the granite column 2 point to the center of the turntable are acute angles, forming a "V"-shaped layout, ensuring that the four measuring cross arms all point to the center of the turntable, and can simultaneously realize the measurement of the geometric dimensions and end face runout of the rotor and other rotating components 11.

[0093] The automated composite measuring turntable proposed in the present invention adopts granite columns, trapezoidal cross-sections, materials and configurations, and can achieve high load and high reliability by precisely controlling the size and material selection of the assembly and measurement platform, thereby realizing the integration of assembly and measurement of the measuring equipment, making the turntable more convenient for precise rotor assembly, thereby improving the overall measurement efficiency.

[0094] Figure 3a , Figure 3b and Figure 3c Schematic diagrams of the first, second and third processes of assembly measurement of an automated composite measurement turntable according to an embodiment of the present invention are disclosed, such as Figures 3a to 3c As shown, the turntable takes into account both assembly and measurement functions. The specific process is as follows:

[0095] Step S1: Figure 3a As shown, the four-dimensional adjustment table 4 on which the rotor is supported and fixed is checked and adjusted so that the three-jaw chuck 5 and the flexible support mechanism 6 are preliminarily aligned;

[0096] Step S2: Figure 3b As shown, the first rotor part 111 is placed on the three-jaw chuck 5 of the measuring platform, and the centering and tilting adjustment device of the air-floating turntable 3 is adjusted manually or automatically so that the runout of the installation side of the first rotor part 111 to the reference surface meets the accuracy requirements;

[0097] During the part measurement process, the reference plane is the reference plane used to determine the measurement requirements. According to different measurement requirements, the corresponding reference plane needs to be selected. During the measurement process, the selection of the reference plane is crucial for ensuring the accuracy of the measurement results. By adjusting the position of the reference plane, the requirements of reference runout can be met, and thus the purposes of tilting adjustment and centering adjustment can be achieved. For the turntable, the reference plane and the measurement plane are actually the same, that is to say, the reference plane is also a kind of measurement plane. Therefore, in the turntable measurement, selecting a suitable reference plane is crucial for ensuring the accuracy of the measurement results.

[0098] Step S3: As Figure 3c shown, adjust the flexible support mechanism 6 to fix the first rotor part 111, and install the second rotor part 112 above the first rotor part 111;

[0099] Step S4: Loosen the flexible support mechanism 6 to disengage it from the first rotor part 111, adjust the centering and tilting device of the air-bearing turntable 3 so that the runout of the installation edge of the first rotor part 111 with respect to the reference plane meets the accuracy requirements, and then measure the end face and radial runout after the second rotor part 112;

[0100] Step S5: Repeat Step S3 and Step S4 for the subsequent rotor part assembly until the rotor assembly is completed.

[0101] The flexible support mechanism proposed by the present invention can support manual and quick adjustment, effectively complete the fixed clamping during the rotor assembly process, achieve vertical, radial, and circumferential stops, and provide great convenience for the assembly operations on the turntable. At the same time, during the geometric measurement process, the flexible support mechanism disengages from the rotor, allowing the air-bearing turntable to fully bear the gravity of the rotor, thus avoiding the influence on the measurement accuracy.

[0102] Figure 4a and Figure 4b respectively disclose the schematic diagrams of the unassembled support cover plate and the complete structure during the assembly stage of the flexible support mechanism according to an embodiment of the present invention, Figure 4c discloses the partial cross-sectional view of the flexible support mechanism according to an embodiment of the present invention. As Figures 4a to 4c shown, the flexible support mechanism 6 is composed of a support base 61, a support cover plate 62, a support spring block 63, a support adjustment screw 64, and a support return spring module 65.

[0103] The support spring block 63 is installed on the support base 61 and connected to the support return spring module 65 for clamping the component to be measured;

[0104] The support return spring module 65 is fixed on the support base 61 and applies a force away from the center to the support spring block 63;

[0105] The support cover plate 62 is mounted on the support base 61 through the support adjustment screw 64;

[0106] Among them, the support cover plate 62 is a wedge-shaped structure, and its side surface is an inclined surface, which fits with the side surface of the support spring block.

[0107] The support base 61 has a through-hole structure in the middle;

[0108] In this embodiment, the number of the support spring blocks 63 is 4, which are circumferentially arranged at the through-hole positions of the support base 61 and are used to clamp the component to be measured.

[0109] The support spring block 63 has a hollow structure inside;

[0110] The support reset spring module 65 is arranged inside the hollow structure and applies a force away from the center to the side wall of the support spring block 63.

[0111] The specific working process of the flexible support mechanism 6 is as follows:

[0112] In the assembly stage, the support adjustment screw 64 is tightened, and the support cover plate 62 moves downward close to the support base 61 under the control force of the screw. The support cover plate 62 pushes the support spring block 63, and the support spring block 63 moves radially toward the center of the through-hole of the support base. In Figure 4c it is the support spring block 63 moving to the right, and the flexible support mechanism 6 clamps the component to be measured through the 4 circumferential support spring blocks 63;

[0113] In the measurement stage, the support adjustment screw 64 is loosened, and the support cover plate 62 moves upward away from the support base 61. The support spring block 63 is pulled by the support reset spring module 65 to move away from the center. In Figure 4c it is the support spring block 63 moving to the left, and the support spring block 63 releases the component to be measured.

[0114] The flexible support mechanism proposed by the present invention not only improves the assembly efficiency but also ensures the measurement accuracy, and has high practical value.

[0115] The automated composite measurement device proposed by the present invention can ensure that the geometric dimensions (diameter, height) and circular runout (radial, vertical, oblique) of the rotor can be accurately detected simultaneously. The device is equipped with multiple groups of measurement cross arms, and all 4 measurement cross arms are equipped with independent vertical movement axes and radial movement axes, and have independent movement and displacement measurement functions. It can automatically complete the accurate positioning of the measurement points according to the geometric model of the measured object and automatically perform contact and non-contact measurements to achieve automatic movement.

[0116] Figure 5 Reveals a front view of an automated composite measurement turntable according to an embodiment of the present invention, as Figure 5As shown, both the left measuring cross arm 7 and the right measuring cross arm 8 are composed of an air-bearing cross arm 12 and a measuring arm 13:

[0117] The air-bearing cross arm 12 cooperates with the driving motor to perform high-precision vertical movement along the granite column 2;

[0118] The measuring arm 13 cooperates with the driving motor to perform high-precision radial movement along the air-bearing cross arm 12;

[0119] During the measurement of the rotor part waiting for the zero component to be measured, the measuring arm is mounted on the air-bearing cross arm and is driven by a linear motor to automatically control the lifting and radial movement of the measuring arm.

[0120] The movement of the measuring arm is driven by a high-precision linear motor, and automatic measurement positioning is realized through program control (or preset program). This not only improves the position accuracy but also makes the movement process more automated, greatly reducing the manual operation process and the dependence on manual experience.

[0121] The end of the measuring arm 13 is equipped with a standard probe mounting interface, which supports the installation of various types of contact and optical non-contact probes, realizes the integrated contact and non-contact measurement of the measured rotor, meets the automatic detection requirements of the geometric dimensions (diameter, height) and circular runout (radial, vertical, oblique) of the rotor, and can perform three-dimensional surface automatic scanning measurement of the annular round edge of the rotor part.

[0122] In this embodiment, the standard probe mounting interface can install either a coordinate measuring probe 9 or a laser profiler 10.

[0123] The coordinate measuring probe 9 belongs to a contact probe, and the laser profiler 10 belongs to an optical non-contact probe. The contact probe realizes the detection of the geometric dimensions and end face runout of the rotating zero component 11, and the optical non-contact probe realizes the three-dimensional model scanning measurement of the annular round edge of the rotating zero component 11, thus realizing the integrated contact and non-contact measurement.

[0124] An automatic composite measuring turntable proposed by the present invention uses a measuring arm that can automatically move along the outer contour dimensions of the zero component to be measured, is equipped with contact and non-contact measuring probes, supports the measurement of geometric dimensions and circular runout of various shaped parts, and greatly improves the detection efficiency. During contact measurement, the interaction force between the probe and the measured part is controllable, and non-contact measurement is supported, greatly improving the measurement accuracy.

[0125] The automatic composite measuring turntable proposed by the present invention has the following corresponding measuring working principles:

[0126] The three-jaw chuck 5 clamps and fixes the rotor part of the rotating zero component 11;

[0127] The probes of the three - coordinate scanning heads 9 at the ends of the two groups of right - hand measuring cross - arms 8 on the right side of the granite column 2 respectively contact two different outer - circle cross - sections of the rotor part;

[0128] The air - bearing turntable 3 rotates automatically to obtain the point - cloud data of the two outer - circle cross - sections. The system calculates the centers of the two outer - circle cross - sections and converts them into centering and tilting adjustment data. Manually complete the centering and tilting adjustment of the rotor part to ensure that the rotation center of the equipment coincides with the rotation center of the rotor part;

[0129] After centering and tilting adjustment, the left - hand measuring cross - arm 7 and the right - hand measuring cross - arm 8, together with the three - coordinate scanning heads 9 and laser profilers 10 at their ends, complete the measurement of the geometric dimensions and end - face run - out of the rotor part and the three - dimensional surface scanning of the rotor's annular round edge;

[0130] Finally, adjust the assembly phase according to the measurement results to complete the assembly of the rotor assembly.

[0131] Compared with the existing detection equipment, an automated composite measuring turntable proposed by the present invention can automatically complete the detection of the geometric dimensions and run - out of the rotor after a single clamping of rotor parts such as large - scale rotors, thus greatly improving the detection efficiency. It has the functions of loading and measuring, without the need to transfer the workpiece, further simplifying the operation process. It not only improves the accuracy and efficiency of measurement, but also reduces the dependence on manual experience, making the measurement process more reliable and controllable.

[0132] As shown in this application and the claims, unless the context clearly indicates an exceptional situation, words such as "a", "an", "one" and / or "the" are not specifically singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of the clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0133] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0134] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0135] In the description of the present invention, it should be noted that, unless otherwise clearly specified or limited, the terms "mounted", "connected" and "coupled" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the connection inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0136] The above embodiments are provided for those skilled in the art to implement or use the present invention. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited by the above embodiments, but should be the maximum scope that conforms to the innovative features mentioned in the claims.

Claims

1. An automated composite measurement turntable, characterized in that, it includes a base, a column, an air-bearing turntable, a four-dimensional adjustment table, a three-jaw chuck, a flexible support mechanism, a plurality of measurement cross arms, and a plurality of measuring heads: The base is fixedly installed on the ground; The column is fixedly installed on the base; The air-bearing turntable is fixedly installed on the base; The four-dimensional adjustment table is fixed above the air-bearing turntable and is used to adjust the orientation of the component to be measured; The three-jaw chuck is fixed above the four-dimensional adjustment table and is used to fix the component to be measured; The flexible support mechanism is used to assist in supporting the component to be measured during the assembly of the component to be measured; Among them, the plurality of measurement cross arms are respectively assembled on both sides of the column and point to the center of the turntable; A plurality of measuring heads are assembled at the ends of the plurality of measurement cross arms to detect the component to be measured on the air-bearing turntable.

2. The automated composite measurement turntable according to claim 1, characterized in that, The base is a granite base; The column is a granite column; The measurement cross arm adopts a granite air-bearing structure.

3. The automated composite measurement turntable according to claim 1, characterized in that, The cross-section of the column is a trapezoidal structure; The plurality of measurement cross arms are respectively assembled on both waists of the column; The included angle between the measurement cross arms on both sides of the column pointing to the center of the turntable is an acute angle.

4. The automated composite measurement turntable according to claim 1, characterized in that, The flexible support mechanism includes a support base, a support cover plate, a support spring block, a support adjustment screw, and a support return spring module: The support spring block is installed on the support base and is connected to the support return spring module for clamping the component to be measured; The support return spring module applies a force away from the center to the support spring block; The support cover plate is installed on the support base through the support adjustment screw; Among them, the side surface of the support cover plate is an inclined surface, which fits with the side surface of the support spring block.

5. The automated composite measurement turntable according to claim 4, characterized in that, The support base has a through-hole structure in the middle; The number of the support spring blocks is multiple, and they are circumferentially arranged at the through-hole position of the support base for clamping the component to be measured.

6. The automated composite measurement turntable according to claim 4, characterized in that, The support spring block has a hollow structure inside; The support return spring module is arranged inside the hollow structure and applies a force away from the center to the side wall of the support spring block.

7. The automated composite measurement turntable according to claim 4, characterized in that, During the assembly stage, tighten the support adjustment screw, the support cover plate moves closer to the support base, pushing the support spring block to move towards the center, and the support spring block clamps the component to be measured.

8. The automated composite measurement turntable according to claim 4, characterized in that, During the measurement stage, loosen the support adjustment screw, the support cover plate moves away from the support base, and the support spring block is pulled by the support return spring module to move away from the center, and the support spring block releases the component to be measured.

9. The automated composite measurement turntable according to claim 1, characterized in that, Each measurement cross arm includes an air-bearing cross arm and a measurement arm: The air-floating cross arm moves vertically along the column; The measuring arm moves radially along the air-floating cross arm.

10. The automated composite measuring turntable according to claim 1, characterized in that a standard probe mounting interface is provided at the end of the measuring cross arm: The standard probe mounting interface is used to mount contact probes and / or non-contact probes.

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