A probe size detection platform and its usage method

Abstract

The present invention discloses a probe size detection platform and a usage method. The detection platform includes a reference component, a fixing component, a supporting component, a calibration tool, an adjusting component, and a light gap detection device. The detection platform of the present invention can complete the detection work of the external dimensions of various types of probes required in the process of aero-engine test, including detecting the measuring point position, straightness, parallelism, coaxiality, and pitch angle of the total pressure probe, detecting the spherical quality of the ball head and the accuracy of the opening position of the five-hole ball head total pressure direction probe, etc., which is beneficial to improving the processing quality of the probes used in engine tests, thereby ensuring the measurement accuracy of the probes used in aero-engine tests, improving the detection efficiency of the external dimensions of the probe part, reducing the detection cost, and solving the problem that there are no relevant technical means to detect the external dimensions of the probe part at present.

Description

Technical Field

[0001] The present invention relates to the technical field of probe detection, and in particular, to a probe size detection platform and a usage method thereof. Background Art

[0002] During the development process of an aero-gas turbine engine, multiple rounds of ground tests are required. Through these tests, various flow field test parameters in the engine flow path are obtained, providing reference for the development work of the engine. In the current development process of aero-engines, probes are the main test means for obtaining the test parameters of the engine flow path. There are many types of probes used in aero-engine tests. According to different measured parameters, they can be divided into total pressure probes, air flow direction probes, total temperature probes, etc. According to different external shapes, they can be divided into comb-shaped probes, rake-shaped probes, ball-headed probes, etc. Probes are reliable in operation and low in manufacturing cost, and can well complete the measurement of common parameters in the engine flow path, so they are widely used.

[0003] To make the measurement of the probe more accurate, the relevant dimensions of the probe, especially the dimensional machining accuracy of the head measurement part (such as the air pipe, etc.), such as the measuring point position, the pitch angle of the measuring point, parallelism, and straightness, etc., need to meet the design requirements. However, most of the probes used in aero-engines are customized designs, with a wide variety of types and irregular shapes. The structures, measuring points, and installation methods of the probes are different, and the overall size of the probe is small, and the spacing between components is narrow. Therefore, the accurate measurement and inspection of the external dimensions of the probe have always been a difficult problem in the actual production and manufacturing process.

[0004] In the prior art, for the probes used in aero-engine test measurements, the surfaces that need to detect straightness are mostly cylindrical surfaces and generally have small sizes. As Figure 1 shown, the contact area between the surface of the probe to be detected and the handheld standard straight ruler is very small, and it is impossible to accurately align by relying on the human eye, which affects the detection accuracy and efficiency of relevant straightness dimensions. As Figure 2 shown, there are many interfering measurement points between the reference surfaces that need to detect parallelism and pitch angle and the air pipe and fairing at the head of the probe. The positions of the measurement points vary greatly between different probes, and the overall size is very small. It is very difficult to detect using a coordinate measuring machine. Moreover, the number of probes processed is large and the external shapes are different. Using a coordinate measuring machine to detect the relevant dimensions of the probe is costly and inefficient. As Figure 3 、 Figure 4 shown, there is currently no equipment for detecting the pitch angle of the air pipe and fairing at each measurement point and for detecting the roundness quality of the ball head of the five-hole ball head total pressure direction probe (the ball head is made by 3D printing and may have large size errors) and the accuracy of the hole opening position. In the actual production process, it can only rely on visual inspection by inspectors, and the detection accuracy is very low, and it is impossible to ensure that the relevant dimensions of the probe can meet the accuracy requirements in test measurements. Summary of the Invention

[0005] The object of the present invention is to provide a probe size detection platform and a method for using the same to solve the above technical problems.

[0006] The object of the present invention can be achieved by the following technical solutions:

[0007] A probe size detection platform, the detection platform includes a reference component, a fixing component, a supporting component, a calibration tool, an adjusting component and a light gap detection device;

[0008] The mounting seat of the probe is clamped between the reference component and the fixing component. The supporting component includes a supporting plate and a mounting plate. The mounting plate is vertically arranged on one side of the supporting plate. The calibration tool is detachably mounted on the mounting plate. The adjusting component is mounted on the reference component, and the mounting plate is mounted on the moving end of the adjusting component; the light gap detection device is used to detect the fitting degree between the calibration tool and the probe to be measured.

[0009] Preferably, the mounting plate is provided with a positioning groove, a mounting hole and a scale line. The calibration tool includes a plug gauge measurement component, a ball head measurement component and a straightness measurement component. Fixed holes are provided on the plug gauge measurement component, the ball head measurement component and the straightness measurement component, and bolts pass through the mounting hole and the fixed hole to fix the plug gauge measurement component, the ball head measurement component and the straightness measurement component on the mounting plate respectively.

[0010] Preferably, the plug gauge measurement component includes a first substrate, a plug gauge and a plug head. A placement groove is provided on the first substrate, a plug hole is communicated in the placement groove, the plug head is made of an elastic material, a clamping hole is provided in the plug head, and the inner diameter of the clamping hole is smaller than the outer diameter of the plug gauge. An extension hole is provided on the first substrate, and the plug gauge cooperates with the extension hole. The plug gauge passes through the extension hole and is inserted into the extension hole for limit fixation. A first scale block is provided on the first substrate, and the scale tip on the first scale block is in the same plane as the axis of the extension hole.

[0011] Preferably, the ball head measurement component includes a second substrate for mounting and positioning. A first measurement groove is provided at the top of the second substrate, a second measurement groove is provided at one end of the second substrate, and a second scale block is provided at the other end of the second substrate. Both the first measurement groove and the second measurement groove are semi-circular grooves, and the plane formed by the scale tip of the second scale block and the axis of the second measurement groove is parallel to the horizontal plane.

[0012] Preferably, the straightness measurement component includes a third substrate. A straightness detection plate is provided at one end of the third substrate, and a third scale block is provided at the other end of the third substrate. The straightness detection plate is perpendicular to the third substrate, and the scale tip of the third scale block is coplanar with the detection plane of the straightness detection plate.

[0013] Preferably, a first detection groove is communicated with the inside of the first measurement groove. Second detection grooves and third detection grooves are respectively arranged on both sides of the first measurement groove, and both the second detection groove and the third detection groove are communicated with the first measurement groove. The second detection groove and the third detection groove are both inclined and symmetrically distributed.

[0014] On one side of the second substrate, a fourth detection groove, a fifth detection groove, and a sixth detection groove are provided. One ends of the fourth detection groove, the fifth detection groove, and the sixth detection groove are all communicated with the second measurement groove. The fourth detection groove is horizontally arranged, and the fifth detection groove and the sixth detection groove are both inclined and symmetrically distributed.

[0015] Preferably, a first positioning block is arranged on the plug gauge measurement assembly, a second positioning block is arranged on the ball head measurement assembly, and a third positioning block is arranged on the straightness measurement assembly. The first positioning block, the second positioning block, and the third positioning block are all matched with the positioning groove.

[0016] Preferably, the detection table further includes a digital display angle gauge, and the digital display angle gauge is detachably installed on the support plate.

[0017] Preferably, the adjusting assembly includes an angle slide table and an XYZ three-axis slide table. The angle slide table is installed on the output stage of the XYZ three-axis slide table, and the support plate is installed on the output stage of the angle slide table.

[0018] A method for using a dimensional inspection table includes the following steps:

[0019] Clamp the probe to be detected and align the mounting seat of the probe through the adjusting assembly, and record the initial angle value and the initial scale value;

[0020] Coarsely adjust the calibration tool to make it close to and initially fit the air pipe, fairing or ball head of the probe to be detected. Fine-tune the adjusting assembly to make the calibration tool completely fit, and use the light gap method to detect whether the fit meets the requirements, and record the measuring point angle value and the measuring point scale value;

[0021] Subtracting the initial angle value from the measuring point angle value can obtain the pitch angle value of the air pipe and the fairing relative to the mounting seat of the probe. Subtracting the initial scale value from the measuring point scale value and then adding the change amount in the height direction of the adjusting assembly can obtain the height value of the air pipe and the fairing relative to the mounting seat of the probe.

[0022] Preferably, the usage method further includes the following steps:

[0023] Insert the plug gauge on the calibration tool into the air pipe hole of the probe. If the length of the straight section where the plug gauge is inserted into the air pipe hole of the probe is greater than 50% of the total length of the straight section of the air pipe hole, the coaxiality of the air pipe of the probe and the fairing is qualified.

[0024] Advantages of the present invention:

[0025] The detection platform of the present invention can complete the detection work of the external dimensions of various types of probes required in the test process of aero-engine tests, including detecting the measuring point position, straightness, parallelism, coaxiality, and pitch angle of the total pressure probe, detecting the spherical quality of the ball head and the accuracy of the opening position of the five-hole ball head total pressure direction probe, etc., which is beneficial to improving the processing quality of the probes used in engine tests, thereby ensuring the measurement accuracy of the probes used in aero-engine tests, improving the detection efficiency of the external dimensions of the probe part, reducing the detection cost, and solving the problem that there are no relevant technical means to detect the external dimensions of the probe part at present;

[0026] The present invention uses the light gap method to detect the parallelism, straightness, and spherical quality of the head of the comb-shaped probe by detecting the fit degree between the calibration tool and the air pipe, fairing, and ball head surface of the probe to be detected; the present invention uses the light gap method in cooperation with a standard plug gauge to achieve the detection of the coaxiality of the total pressure probe with a fairing, with accurate, convenient detection, easy operation, low manufacturing and use costs, meeting the actual needs of the probe detection work, and solving the problems of difficult detection of the spherical quality of the head and the accuracy of the opening position of the five-hole ball head total pressure probe, and solving the problem of difficult detection of the coaxiality of the total pressure probe with a fairing.

[0027] Other features and advantages of the present invention will be described in the subsequent specification, and part of them will be obvious from the specification or understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures pointed out in the specification, claims, and drawings. Brief Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0029] Figure 1 It is a schematic diagram of air pipe measurement in the prior art;

[0030] Figure 2 It is a schematic diagram of a three-coordinate measuring machine detecting the parallelism and pitch angle of a probe in the prior art;

[0031] Figure 3 It is a schematic diagram of the inclination angle of the air pipe of a probe in the prior art;

[0032] Figure 4 It is a schematic diagram of the head structure of a ball head probe in the prior art;

[0033] Figure 5 is a schematic structural diagram of the detection table of the present invention;

[0034] Figure 6 is a schematic partial structural diagram of the detection table of the present invention;

[0035] Figure 7 is a schematic structural diagram of the plug gauge measuring assembly of the present invention;

[0036] Figure 8 is a schematic partial structural diagram of the plug gauge measuring assembly of the present invention

[0037] Figure 9 is a schematic structural diagram of the ball head measuring assembly of the present invention;

[0038] Figure 10 is a schematic structural diagram of the fourth, fifth, and sixth detection grooves of the ball head measuring assembly of the present invention;

[0039] Figure 11 is a schematic structural diagram of the straightness measuring assembly of the present invention;

[0040] Figure 12 is a schematic structural diagram of the optical gap method measurement of the present invention.

[0041] In the figure: 1, reference component; 2, fixing component; 3, supporting component; 4, plug gauge measuring assembly; 5, ball head measuring assembly; 6, straightness measuring assembly; 7, digital display angle gauge; 8, angle slide; 9, XYZ three-axis slide; 11, base; 12, reference table; 13, through groove; 21, fixing plate; 22, through hole; 23, adjustment hole; 31, support plate; 32, mounting plate; 33, positioning groove; 34, mounting hole; 35, scale line; 41, first substrate; 42, plug gauge; 43, plug head; 44, first positioning; 45, first fixing hole; 46, placement groove; 47, plug hole; 48, extension hole; 49, first scale block; 51, second substrate; 52, second positioning block; 53, second positioning hole; 54, first measuring groove; 541, first detection groove; 542, second detection groove; 543, third detection groove; 55, second measuring groove; 551, fourth detection groove; 552, fifth detection groove; 553, sixth detection groove; 56, second scale block; 61, third substrate; 62, third positioning block; 63, third positioning hole; 64, straightness detection plate; 65, third scale block. Detailed implementation manners

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are 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 should not be understood as a limitation on the present invention.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] To facilitate the actual installation and positioning of the probe, each probe is provided with a mounting seat, and the probe and the mounting seat are arranged vertically. The three vertical hole axes of the ball head of the five-hole ball head total pressure probe are in the same plane, and the three horizontal hole axes are in the same plane.

[0046] like Figure 5 As shown, an embodiment of the present invention discloses a probe size detection platform, including a reference component 1, a fixed component 2, a support component 3, a plug gauge measuring component 4, a ball head measuring component 5, a straightness measuring component 6, a digital display angle meter 7, an adjustment component and an optical gap detection device; the fixed component 2 is detachably mounted on the reference component 1, and the probe is pressed and limited on the reference component 1 by the fixed component 2 to ensure the stability of the probe measurement and the appropriate alignment angle, the support component 3 is mounted on the reference component 1, the plug gauge measuring component 4, the ball head measuring component 5, the straightness measuring component 6 and the digital display angle meter 7 are all detachably mounted on the support component 3, and the support component 3 is mounted on the adjustment component, and the support component 3 is driven by the adjustment component to rotate and move in the XYZ three-axis direction to adjust the measurement position and measurement angle.

[0047] like Figure 12As shown in the figure, the light gap detection device includes a light box b, a light source c, and a ground glass d. The light source is installed inside the light box, and the ground glass is arranged on the light box. The light emitted by the light source passes through the ground glass and irradiates on the gap between the detection tool and the workpiece to be detected, forming a light gap. By comparing it with the standard light gap, the straightness or conformity error value can be judged.

[0048] The light gap method is a method of judging the size of the gap by observing the amount of visible light gap passing through the actual gap with the naked eye. In an environment with appropriate light (natural light or artificial light is acceptable), adjust the gap between the plane to be inspected and the standard knife edge (or the gap with the standard plane) to meet the requirements. Look horizontally from a direction perpendicular to the inspected gap with the naked eye, and read the color of the light transmitted through the inspected gap that is currently seen. When the gap between the plane to be measured and the standard knife edge is greater than 2.5μm, the transmitted light color is white; when the gap is 1 - 2μm, the transmitted light color is red; when the gap is 1μm, the transmitted light color is blue; when the gap is less than 1μm, the transmitted light color is purple; when the gap is less than 0.5μm, there is no light transmission.

[0049] The reference component 1 includes a base 11 and a reference table 12. The reference table 12 is arranged on the base 11. A through groove 13 is provided on the reference table 12, and the tabletop of the reference table 12 is parallel to the horizontal plane.

[0050] The fixing component 2 includes a fixing plate 21, a through hole 22, and a number of adjusting holes 23. The adjusting holes 23 are arranged along the circumference of the fixing plate 21 close to the edge to ensure that there is no interference during installation and facilitate installation. The probe passes through the through hole 22, and the mounting seat of the probe is clamped between the fixing plate 21 and the reference table 12. The bolt passes through the through hole 22 and is in threaded cooperation with the reference table 12. By rotating the bolt, the mounting seat of the probe is fixed between the fixing plate 21 and the reference table 12. There are at least three bolts on the upper part of the fixing plate 21 to ensure the stability of the installation and prevent the fixing plate 21 from swinging.

[0051] As Figure 5 、 Figure 6As shown in the figure, the support assembly 3 includes a support plate 31 and a mounting plate 32. The mounting plate 32 is vertically arranged on the support plate 31, and the mounting plate 32 is arranged on one side of the support plate 31 close to the reference table 12, which is convenient for adjustment during measurement. A positioning groove 33 is provided on the mounting plate 32 for positioning when the plug gauge measuring assembly 4, the ball head measuring assembly 5, and the straightness measuring assembly 6 are installed, ensuring that the installation position is appropriate. At the same time, it is limited that the plug gauge measuring assembly 4, the ball head measuring assembly 5, and the straightness measuring assembly 6 can only slide along the positioning groove 33, ensuring that they are basically straight and aligned after installation. An installation hole 34 is also provided on the mounting plate 32. Bolts pass through the through hole 22 to fix the measuring assembly on the support plate 31. A scale line 35 is provided on the mounting plate 32, which is convenient for reading the corresponding height position dimensions of the parts to be detected. The digital display angle gauge 7 is installed on the support plate 31. The digital display angle gauge 7 can be fixed on the support plate 31 by bolts, or a magnetic attraction assembly can be respectively provided at the bottom of the digital display angle gauge 7 and on the support plate 31, and the digital display angle gauge 7 can be fixed by magnetic attraction.

[0052] As Figure 7 , Figure 8 shown, the plug gauge measuring assembly 4 includes a first substrate 41, a plug gauge 42, and a plug head 43. A first positioning block 44 is provided on the first substrate 41. The first positioning block 44 cooperates with the positioning groove 33. A first fixing hole 45 is provided on the first substrate 41. A screw passes through the installation hole 34 and the first fixing hole 45 to fix the first substrate 41 on the mounting plate 32. A placement groove 46 is provided on the first substrate 41, and a plug hole 47 is communicated in the placement groove 46. The plug head 43 is made of an elastic material, and a clamping hole is provided in the plug head 43. The inner diameter of the clamping hole is slightly smaller than the outer diameter of the plug gauge 42. The plug gauge 42 is inserted into the clamping hole of the plug head 43 for limit fixation. An extension hole 48 is provided on the first substrate 41. The plug gauge 42 cooperates with the extension hole 48. The plug gauge 42 passes through the extension hole 48 and is inserted into the plug head 43 for limit fixation, so that the plug gauge 42 is stable when the part to be measured is detected. A first scale block 49 is provided on the first substrate 41. The cross-sectional area of the first scale block 49 gradually decreases from the bottom to the scale tip. The scale tip on the first scale block 49 and the axis of the extension hole 48 are in the same plane.

[0053] For different parts to be measured, plug gauges 42 of different sizes are required. Therefore, each plug gauge 42 (with different outer diameters) corresponds to a plug gauge measuring assembly 4. The difference between different plug gauge measuring assemblies 4 lies only in the different outer diameters of the plug gauges 42, the different inner diameters of the extension holes 48 that cooperate with the plug gauges 42, and the different sizes of the clamping holes of the plug heads 43 that fix the plug gauges 42.

[0054] It should be noted that in order to ensure the stability of the plug 43, the outer diameter of the plug 43 is slightly larger than the inner diameter of the plug hole 47. At the same time, to facilitate the insertion of the plug 43 into the plug hole 47, the outer surface of the plug 43 can be set as an inclined surface, that is, the cross-section of the front end (insertion end) of the plug 43 is smaller than the cross-section of the rear end, thereby reducing the insertion difficulty.

[0055] As Figure 9 shown, the ball head measuring assembly 5 includes a second substrate 51. A second positioning block 52 is arranged on the second substrate 51. The second positioning block 52 cooperates with the positioning groove 33 for installation and positioning. A second positioning hole 53 is arranged on the second substrate 51. A bolt passes through the mounting hole 34 and the second positioning hole 53 to fix the second substrate 51 on the mounting plate 32. A first measuring groove 54 is arranged at the top of the second substrate 51. The first measuring groove 54 is a semi-circular groove, which is used to detect the spherical machining quality of the ball head of the five-hole ball head total pressure direction probe in the horizontal direction. A first detection groove 541 is communicated with the first measuring groove 54. Second detection grooves 542 and third detection grooves 543 are respectively arranged on both sides of the first measuring groove 54, and both the second detection groove 542 and the third detection groove 543 are communicated with the first measuring groove 54. The second detection groove 542 and the third detection groove 543 are both inclined and symmetrically distributed. The first detection groove 541, the second detection groove 542 and the third detection groove 543 are used to detect whether the three openings of the ball head of the five-hole ball head total pressure direction probe in the horizontal direction meet the requirements.

[0056] As Figure 10 shown, a second measuring groove 55 is arranged on the second substrate 51. The second measuring groove 55 is a semi-circular groove, which is used to detect the spherical machining quality of the ball head of the five-hole ball head total pressure direction probe in the vertical direction (perpendicular to the horizontal direction). A fourth detection groove 551, a fifth detection groove 552 and a sixth detection groove 553 are arranged on one side of the second substrate 51. The fourth detection groove 551, the fifth detection groove 552 and the sixth detection groove 553 are used to detect whether the three openings of the ball head of the five-hole ball head total pressure direction probe in the vertical direction meet the requirements. One end of each of the fourth detection groove 551, the fifth detection groove 552 and the sixth detection groove 553 is communicated with the second measuring groove 55. The other end of the fourth detection groove 551 is communicated with the second positioning hole 53. The fourth detection groove 551 is horizontally arranged. The fifth detection groove 552 and the sixth detection groove 553 are inclined and symmetrically distributed. The second measuring groove 55 is arranged at one end of the second substrate 51. A second scale block 56 is arranged at the other end of the second substrate 51. The structure of the second scale block 56 is the same as that of the first scale block 49. The plane formed by the scale tip of the second scale block 56 and the axis of the second measuring groove 55 is parallel to the opening direction of the fourth detection groove 551. After installation, the second measuring groove 55 is on the side close to the workpiece to be measured, and the communication ends of the second detection groove 542 and the third detection groove 543 with the first measuring groove 54 are the ends close to the workpiece to be measured.

[0057] As shown Figure 11 in the figure, the straightness measurement assembly 6 includes a third substrate 61, on which a third positioning block 62 and a third positioning hole 63 are provided. The third positioning block 62 cooperates with the positioning groove 33 for installation and positioning. The bolt passes through the mounting hole 34 and the third positioning hole 63 to fix the third substrate 61 on the mounting plate 32. At one end of the third substrate 61, a straightness detection plate 64 is provided, and at the other end of the third substrate 61, a third scale block 65 is provided. The third scale block 65 has the same structure as the first scale block 49. The straightness detection plate 64 is perpendicular to the third substrate 61, and the scale tip of the third scale block 65 is coplanar with the detection plane of the straightness detection plate 64. After installation, the straightness detection plate 64 is on the side close to the probe to be detected.

[0058] The adjustment assembly includes an angle slide 8 and an XYZ three-axis slide 9. Both the angle slide 8 and the XYZ three-axis slide 9 are existing devices, and their internal structures will not be elaborated here. The angle slide 8 is installed at the output end of the XYZ three-axis slide 9, and the support plate 31 is installed at the output end of the angle slide 8. By adjusting the adjustment knobs in the X direction, Y direction, and Z direction of the XYZ three-axis slide 9, the angle slide 8 and the support assembly 3 thereon are adjusted to move, completing the adjustment of their spatial coordinates. By adjusting the angle adjustment knob of the angle slide 8, the support assembly 3 is driven to rotate, taking Figure 6 a right angle of the support plate 31 as the coordinate axis point, and the support assembly 3 rotates counterclockwise around an axis parallel to the Y axis at the bottom of the support plate 31, facilitating the measurement of the tilt angle of the probe, etc.

[0059] During detection, the mounting seat of the probe to be detected is placed on the tabletop of the reference table 12. The through hole 22 of the fixing plate 21 is sleeved through the probe and pressed on the mounting seat of the probe, and then the fixing plate 21 is fixed on the reference table 12 through bolts, thereby clamping the mounting seat of the probe and completing the fixing of the probe.

[0060] After installation, the XYZ three-axis slide 9 and the angle slide 8 are adjusted so that the upper surface of the support plate 31 is flush with the mounting seat of the probe. At this time, the reading of the digital display angle gauge 7 is the initial angle value, the value of the scale line 35 corresponding to the scale tip of the third scale block 65 is the initial scale value, and the coordinate value of the XYZ three-axis slide 9 at this time is the initial coordinate value.

[0061] When measuring the parallelism and included angle of the probe air pipe and the fairing, roughly adjust the straightness measuring assembly 6 so that the straightness detection plate 64 is as close as possible to the outer walls of the probe air pipe and the fairing. Then, finely adjust through the XYZ three-axis slide table 9 and the angle slide table 8 so that the straightness detection plate 64 fits the outer walls of the probe air pipe and the fairing to be measured until it cannot be adjusted further. Use the light gap detection equipment to detect the fit degree by the light gap method. When the fit degree meets the requirements, read the angle value of the digital display angle gauge 7 at this time, the scale point scale value of the scale tip of the third scale block 65 corresponding to the scale line 35, and the measuring point coordinate value of the XYZ three-axis slide table 9; measure the other air pipes and fairings on the probe in turn according to this method and record the corresponding measuring point angle values, measuring point scale values, and measuring point coordinate values respectively. Subtract the initial angle value from the measuring point angle value obtained from the subsequent measurement to get the pitch angle value of the air pipe and the fairing relative to the mounting base of the probe. Subtract the initial scale value from the measuring point scale value obtained from the subsequent measurement and then add the difference in the Z direction between the measuring point coordinate value and the initial coordinate value to get the height value of the air pipe and the fairing relative to the mounting base of the probe.

[0062] It should be noted that the straightness measuring assembly 6 can also detect the outer diameters of the air pipe and the fairing. By fitting the straightness detection plate 64 to the left and right sides or the upper and lower sides of the air pipe and the fairing respectively, the corresponding outer diameter size can be obtained through the change amount of the two measuring point coordinate values.

[0063] When detecting the coaxiality of the probe air pipe and the fairing, roughly adjust the first substrate 41 so that the plug gauge 42 with the corresponding diameter is as close as possible to the air pipe hole, and record the measuring point scale value at this time. Then, finely adjust through the XYZ three-axis slide table 9 and the angle slide table 8 so that the plug gauge 42 is inserted into the air pipe hole of the probe, and record the measuring point coordinate value at this time. If the total length of the straight section where the plug gauge 42 is inserted into the air pipe hole of the probe reaches more than 50%, it is considered that the coaxiality of the probe air pipe and the fairing is qualified. At this time, the measurement method of the height value of the measuring point is the same as that of the parallelism measurement height value, so as to obtain the height value of the measuring point.

[0064] When measuring the ball head of the five-hole ball head total pressure probe, control the tightness of the control bolt, control the sliding of the ball head measuring assembly 5 on the mounting plate 32, make the ball head close to the first measuring groove 54, complete the rough adjustment, and then finely adjust through the XYZ three-axis slide table 9 and the angle slide table 8 to make the ball head measuring assembly 5 fit with the first measuring groove 54 until it cannot be adjusted. The light gap detection device uses the light gap method to detect the fit degree between the head of the five-hole ball head and the first measuring groove 54. The irradiation direction of the light is from one end of the second substrate 51 and remains parallel to the grooving direction of the first measuring groove 54, and irradiates at the joint of the ball head and the groove surface of the first measuring groove 54 to observe whether the spherical shape of the probe head meets the requirements; then, by observing the opening directions of the three openings in the horizontal direction of the ball head of the probe with the first detection groove 541, the second detection groove 542, and the third detection groove 543, determine whether there is a large deviation in the opening of the ball head probe. If the corresponding holes seriously deviate from the directions of the first detection groove 541, the second detection groove 542, and the third detection groove 543, it is determined as unqualified; in the same operation mode, fit the ball head of the probe in the second measuring groove 55, the detection measuring device uses the light gap method to detect the fit degree between the head of the five-hole ball head and the second measuring groove 55, and at the same time, observe whether the opening directions of the three holes in the side direction of the fourth detection groove 551, the fifth detection groove 552, and the sixth detection groove 553 are consistent with the vertical direction of the probe. When they are inconsistent, it is unqualified. When detecting the ball center height of the ball head, after the probe ball head is adjusted to fit in the second measuring groove 55, record the measuring point scale value at this time, and then the height of the ball center can be obtained by using the same calculation method of parallelism.

[0065] An embodiment of the present invention also discloses a use method of a size detection table, including the following steps:

[0066] Clamp the probe to be detected and calibrate the reference surface through the adjustment assembly, and record the initial angle value and the initial scale value;

[0067] Coarsely adjust the calibration tool to make it close to and initially fit the air pipe, fairing or ball head of the probe to be detected, finely adjust the adjustment assembly to make the calibration tool fit completely, and use the light gap method to detect whether the fit degree meets the requirements, and record the measuring point angle value and the measuring point scale value;

[0068] Subtract the initial angle value from the measuring point angle value to obtain the pitch angle value of the air pipe and fairing relative to the mounting seat of the probe, and subtract the initial scale value from the measuring point scale value and then add the change amount in the height direction of the adjustment assembly to obtain the height value of the air pipe and fairing relative to the mounting seat of the probe.

[0069] Insert the plug gauge 42 on the calibration tool into the air pipe hole of the probe. If the total length of the straight section of the plug gauge 42 inserted into the air pipe hole of the probe exceeds 50%, the coaxiality of the air pipe and fairing of the probe is qualified.

[0070] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates 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 may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0071] In the description of this specification, the description of reference terms such as "an embodiment", "example", "specific example", etc. means 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 representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0072] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A probe size detection station, characterized in that, The detection table includes a reference component (1), a fixing component (2), a supporting component (3), a calibration tool, an adjusting component, and a light gap detection device; The mounting seat of the probe is clamped between the reference component (1) and the fixing component (2). The supporting component (3) includes a supporting plate (31) and a mounting plate (32). The mounting plate (32) is vertically arranged on one side of the supporting plate (31). The calibration tool is detachably mounted on the mounting plate (32). The adjusting component is mounted on the reference component (1), and the mounting plate (32) is mounted on the moving end of the adjusting component; The light gap detection device is used to detect the fitting degree between the calibration tool and the probe to be measured; The mounting plate (32) is provided with a positioning groove (33), a mounting hole (34), and a scale line (35). The calibration tool includes a plug gauge measuring component (4), a ball head measuring component (5), and a straightness measuring component (6). Fixed holes are provided on the plug gauge measuring component (4), the ball head measuring component (5), and the straightness measuring component (6). Bolts pass through the mounting hole (34) and the fixed holes to fix the plug gauge measuring component (4), the ball head measuring component (5), and the straightness measuring component (6) on the mounting plate (32) respectively; The plug gauge measuring component (4) includes a first substrate (41), a plug gauge (42), and a plug head (43). A placing groove (46) is provided on the first substrate (41). A plug hole (47) is communicated in the placing groove (46). The plug head (43) is made of an elastic material. A clamping hole is provided in the plug head (43). The inner diameter of the clamping hole is smaller than the outer diameter of the plug gauge (42). An extending hole (48) is provided on the first substrate (41). The plug gauge (42) is matched with the extending hole (48). The plug gauge (42) passes through the extending hole (48) and is inserted into the extending hole (48) for limit fixation. A first scale block (49) is provided on the first substrate (41). The scale tip on the first scale block (49) is in the same plane as the axis of the extending hole (48); The ball head measuring component (5) includes a second substrate (51) for mounting and positioning. A first measuring groove (54) is provided at the top of the second substrate (51). A second measuring groove (55) is provided at one end of the second substrate (51). A second scale block (56) is provided at the other end of the second substrate (51). The first measuring groove (54) and the second measuring groove (55) are both semi-circular grooves. The plane formed by the scale tip of the second scale block (56) and the axis of the second measuring groove (55) is parallel to the horizontal plane; A first detection groove (541) is communicated in the first measuring groove (54). Second detection grooves (542) and third detection grooves (543) are respectively provided on both sides of the first measuring groove (54). Both the second detection groove (542) and the third detection groove (543) are communicated with the first measuring groove (54). The second detection groove (542) and the third detection groove (543) are both inclined and symmetrically distributed; On one side of the second substrate (51), a fourth detection groove (551), a fifth detection groove (552) and a sixth detection groove (553) are provided. One ends of the fourth detection groove (551), the fifth detection groove (552) and the sixth detection groove (553) are all communicated with the second measurement groove (55). The fourth detection groove (551) is horizontally arranged, and the fifth detection groove (552) and the sixth detection groove (553) are both inclined and symmetrically distributed.

2. The probe size detection stage according to claim 1, wherein The straightness measurement assembly (6) includes a third substrate (61). At one end of the third substrate (61), a straightness detection plate (64) is provided. At the other end of the third substrate (61), a third scale block (65) is provided. The straightness detection plate (64) is perpendicular to the third substrate (61), and the scale tip of the third scale block (65) is coplanar with the detection plane of the straightness detection plate (64).

3. The probe size detection station according to claim 1, wherein A first positioning block (44) is provided on the plug gauge measurement assembly (4), a second positioning block (52) is provided on the ball head measurement assembly (5), and a third positioning block (62) is provided on the straightness measurement assembly (6). The first positioning block (44), the second positioning block (52) and the third positioning block (62) are all matched with the positioning groove (33).

4. A probe size detection station according to any one of claims 1-3, characterized in that, The detection table further includes a digital display angle gauge (7), and the digital display angle gauge (7) is detachably installed on the support plate (31).

5. A probe size detection station according to any one of claims 1-3, characterized in that, The adjustment assembly includes an angle slide table (8) and an XYZ three-axis slide table (9). The angle slide table (8) is installed on the output table of the XYZ three-axis slide table (9), and the support plate (31) is installed on the output table of the angle slide table (8).

6. A method for using the dimension detection table according to any one of claims 1-5, characterized in that, Including the following steps: Clamp the detected probe and align the mounting seat of the probe through the adjustment assembly, and record the initial angle value and the initial scale value; Coarsely adjust the calibration tool to make it close to and preliminarily fit the air pipe, fairing or ball head of the probe to be detected. Fine-tune the adjustment assembly to make the calibration tool fit completely, and use the light gap method to detect whether the fit meets the requirements, and record the measured point angle value and the measured point scale value; Subtracting the initial angle value from the measured point angle value can obtain the pitch angle value of the air pipe and the fairing relative to the mounting seat of the probe. Subtracting the initial scale value from the measured point scale value and then adding the change amount in the height direction of the adjustment assembly can obtain the height value of the air pipe and the fairing relative to the mounting seat of the probe.

7. The usage method of a size detection table according to claim 6, characterized in that, The usage method further includes the following steps: Insert the plug gauge (42) on the calibration tool into the air pipe hole of the probe. If the length of the straight section where the plug gauge is inserted into the air pipe hole of the probe is greater than 50% of the total length of the straight section of the air pipe hole, the coaxiality of the air pipe and the fairing of the probe is qualified.

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