Fixing device of precise instrument state detector and use method

Abstract

The invention discloses a fixing device of a precise instrument state detector and a use method, the fixing device comprises a base, a positioning assembly and a detection fixing assembly, and the detection fixing assembly is connected with the base through a limiting rod; the positioning assembly comprises a first positioning plate and a second positioning plate which are located on the opposite sides of the periphery of the base correspondingly, limiting cavities are horizontally formed in the first positioning plate and the second positioning plate in a penetrating mode correspondingly, and the limiting rods are arranged at the ends, close to the base, in the limiting cavities in a sliding and sealing mode; the non-sliding sealing end of the limiting rod is hinged to the base, the other end of the limiting cavity is provided with a control valve, the control valve is used for guaranteeing that the position of the limiting rod is stable during detection, and the first positioning plate is used for fixing the detection position of the detection fixing assembly. And the second positioning plate is used for adjusting and fixing the detection angle of the detection fixing assembly so as to adapt to the detection requirements of to-be-detected equipment with different installation conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment detection, and in particular to a fixing device and a use method of a precision instrument status detection machine. Background Art

[0002] Precision instruments refer to scientific instruments or industrial equipment with high accuracy, high stability and high reliability, usually used for precise measurement, processing or experiments. Precision instrument status detection machine is a device that collects temperature, pressure, vibration and other data of precision instruments through sensors and monitoring equipment. During detection, the sensor rod needs to be fixed on the surface or inside of the equipment to be tested for detection.

[0003] For example, a Chinese patent with publication number CN117686087B discloses an equipment vibration detection device and detection method, including a detection instrument, a signal line, a vibration sensor, a contact surface adjustment component and a limit component. During detection, the device to be detected is clamped by the limit component to ensure that the sensing probe is in contact with the device to be detected and the detection accuracy is guaranteed. However, the above-mentioned device can only detect the device to be detected with a specific structure (the part to be detected needs to have a protruding structure) during detection, and its use is relatively limited. In addition, when detecting the status of industrial equipment, the sensor angle and the clamping position of the limit component are relatively fixed during detection of the device, and the flexibility is poor when detecting different parts of the device to be detected.

[0004] Therefore, it is necessary to provide a fixing device and a method for using a precision instrument status detector to solve the problems mentioned in the above background technology. Summary of the invention

[0005] To achieve the above object, the present invention provides the following technical solution: a fixing device and a method for using a precision instrument status detection machine, comprising a base, a positioning assembly and a detection fixing assembly, wherein the detection fixing assembly is connected to the base through a limit rod;

[0006] The positioning assembly includes a first positioning plate and a second positioning plate, the first positioning plate and the second positioning plate are respectively located on opposite sides of the outer periphery of the base, and a limit cavity is horizontally penetrated in the first positioning plate and the second positioning plate, the limit rod is provided in the limit cavity for sliding sealing near one end of the base, the non-sliding sealing end of the limit rod is hinged to the base, and a control valve is provided at the other end of the limit cavity, the control valve is used to ensure that the position of the limit rod is stable during detection, the first positioning plate is used to fix the detection position of the detection fixing assembly, and the second positioning plate is used to adjust and fix the detection angle of the detection fixing assembly to meet the detection requirements of the equipment to be inspected under different installation conditions;

[0007] A detection hole is provided through the middle of the base, and the detection fixing assembly is installed just above the detection hole. The detection fixing assembly is used to fix the measuring rods of detection instruments of different specifications, and the distance between the measuring rod and the detection part can be adjusted through the detection hole;

[0008] A plurality of suction cups are installed at the lower ends of the first positioning plate and the second positioning plate.

[0009] Preferably, the limiting cavity is a T-shaped cavity, the main cavity of the T-shaped cavity is perpendicular to the mounting surface of the limiting rod, and each end of the T-shaped cavity is respectively connected to the corresponding side surfaces of the first positioning plate and the second positioning plate;

[0010] A sliding plug is installed at the sliding sealing end of the limit rod, and the sliding plug is connected to the main path cavity of the T-shaped cavity in a sliding sealing manner, and the control valve is installed at the end of the branch cavity of the T-shaped cavity;

[0011] The sliding plug is connected to the bottom of the main path cavity of the T-shaped cavity through a tension spring.

[0012] Preferably, the limiting rod on one side of the first positioning plate is hinged to the base shaft, and the hinge shaft is horizontally arranged, and the limiting rod on one side of the second positioning plate is hinged to the base ball.

[0013] Preferably, the control valve comprises: a valve housing, the valve housing is a columnar structure, the valve housing is installed at the end of the branch cavity of the T-shaped cavity, and the end of the valve housing coaxially penetrates to open a flow channel, and the flow channel is connected to the branch cavity;

[0014] A cylindrical sliding cavity is coaxially opened in the flow channel, the diameter of the cylindrical sliding cavity is larger than the flow channel, a blocking block is provided for sliding sealing in the cylindrical sliding cavity, a plurality of supporting springs are provided on the side of the cylindrical sliding cavity close to the main path cavity, and the supporting springs are elastically supported between the blocking block and the end face of the cylindrical sliding cavity;

[0015] A plurality of C-shaped air channels are opened in the circumferential direction inside the side wall of the valve housing, and two ports of the C-shaped air channels are respectively located on the inner walls at both ends of the cylindrical sliding cavity, and are used to connect the two ends of the cylindrical sliding cavity, and the length of the blocking block is less than the distance between the two ports of the C-shaped air channel;

[0016] An exhaust column is fixedly arranged at the other end of the blocking block, and the exhaust column protrudes from the end surfaces of the first positioning plate and the second positioning plate.

[0017] Preferably, the detection fixing assembly comprises: a fixing cylinder, the fixing cylinder can be slidably arranged in the detection hole, the outer peripheral side of the fixing cylinder is a threaded structure, and the outer peripheral side of the fixing cylinder is axially provided with a plurality of guide grooves, the inner peripheral side of the detection hole is provided with a plurality of guide blocks corresponding to the guide grooves, and the guide grooves and the guide blocks are relatively slidably matched;

[0018] A threaded sleeve is screwed on the outside of the fixed cylinder, the threaded sleeve is located at the top of the base, an annular boss is radially protruded from the bottom of the threaded sleeve, a pressure ring is pressed on the annular boss, the pressure ring is fixedly connected to the base, and the threaded sleeve and the pressure ring are relatively rotated and matched;

[0019] A pressure plate and a support plate are coaxially arranged at both ends of the fixed cylinder, respectively. The support plate is fixed in the fixed cylinder, and the pressure plate and the fixed cylinder are slidably matched. The pressure plate and the support plate are annular plates with the same specifications. A plurality of radial grooves are evenly arranged on one side of the inner annular surface of the opposite ends of the pressure plate and the support plate along the circumferential direction.

[0020] Retractable clamps are slidably arranged in the radial slide grooves corresponding to the pressure plate and the support plate, and support airbags are arranged between the retractable clamps and the fixed cylinder, the pressure plate and the support plate. The outside of the support airbags is coated with a wear-resistant layer, and the top of the pressure plate is connected to an annular pressure plate through a plurality of connecting rods.

[0021] Preferably, the telescopic splint comprises two arc-shaped plates that are toothed and plugged into each other, and sliders are fixed vertically at both ends of the telescopic splint away from the axis, and the sliders are slidably arranged in the radial slots, and the sliders are connected to the inner ends of the radial slots via buffer springs.

[0022] Preferably, the inner annular surfaces of the pressure plate and the support plate are internal thread structures, and sealing rings are threadedly connected to the inner annular surfaces of the pressure plate and the support plate. When the sealing ring is fully screwed in, its screwed-in end surface is flush with the bottom end of the slide groove, and is used to seal the gap between the pressure plate and the support plate and the measuring rod.

[0023] Preferably, a limiting groove is formed through the upper portion of each guide groove, and a plurality of slots are evenly formed on both sides of the limiting groove along the extension direction thereof;

[0024] A plurality of clamping plates are arranged on the outer peripheral side of the pressure plate corresponding to the clamping slots, and the clamping plates are arranged in a plurality of layers along the axial direction of the pressure plate. By rotating the pressure plate, the clamping plates can enter the clamping slots to lock the position of the pressure plate.

[0025] Preferably, a baffle is rotatably provided on one side of the bottom end of the detection hole to limit the axial position of the measuring rod when it is fixed.

[0026] A method for using a fixing device of a precision instrument status detection machine includes:

[0027] S1. Determine the detection condition of the detection part, select the appropriate measuring rod specifications, and consider replacing the appropriate sealing ring. At the same time, turn the baffle to the limit state;

[0028] S2, placing the measuring rod on the baffle by the detection fixing assembly, and then pressing the annular pressure plate, using the deformation of the supporting airbag to push the telescopic clamping plate to move radially to clamp the measuring rod to a preset pressure value, and then rotating the annular pressure plate to lock the position of the pressure plate by using the clamping plate and the clamping slot 413;

[0029] S3, turn the baffle to a non-limiting state;

[0030] S4, adjusting the distance between the first positioning plate and the base based on the limit rod, fixing the first positioning plate on the surface to be inspected or the adjacent surface of the part to be inspected by using a suction cup, and fixing the position of the detection fixing component;

[0031] S5. Adjust the distance between the second positioning plate and the base based on the limit rod, fix the second positioning plate on the surface to be inspected or the adjacent surface of the part to be inspected by using a suction cup, and adjust and fix the detection angle of the detection fixing component;

[0032] S6. Rotate the threaded sleeve to drive the fixed tube and the measuring rod to move downward, and adjust the distance between the measuring rod and the surface to be inspected according to the preset requirements;

[0033] S7. Start the testing instrument to test the parts of the equipment to be tested.

[0034] Compared with the prior art, the present invention provides a fixing device and a method for using a precision instrument status detector, which has the following beneficial effects:

[0035] 1. By setting a base, a limit rod and a positioning component, the detection position of the detection fixing component is fixed by the first positioning plate, and the detection angle of the detection fixing component is adjusted and fixed by the second positioning plate to adapt to the detection requirements of different detection parts of the equipment to be inspected under different installation conditions, such as the detection and installation requirements of detection points between surfaces with different height differences and inclination angles. The device has wide applicability.

[0036] 2. By arranging a limit cavity, a control valve, a sliding plug and a tension spring in the first positioning plate and the second positioning plate, when the limit rod is extended to different lengths, a pressure-maintaining sealed chamber can be formed in the limit cavity, thereby reducing the impact of equipment vibration on the fixing device during the detection process and ensuring the detection accuracy.

[0037] 3. By setting the supporting airbag and the pressure plate to drive the telescopic clamp to move radially, measuring rods of different specifications can be clamped. At the same time, due to the circumferential gap of the telescopic clamp, the supporting airbag can be squeezed by the pressure plate to expand from the gap, and the measuring rod is clamped auxiliaryly, thereby improving the stability of the detection and fixing assembly for clamping the measuring rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of a fixing device of a precision instrument status detection machine;

[0039] Figure 2 It is a schematic diagram of the main and cross-sectional structure of a fixing device base and a positioning plate of a precision instrument status detection machine;

[0040] Figure 3 This is a schematic diagram of the main cross-sectional structure of a valve body of a fixing device for a precision instrument status detection machine;

[0041] Figure 4 It is a schematic diagram of the main and cross-sectional structure of a fixture detection component of a precision instrument status detection machine;

[0042] Figure 5 for Figure 4 The enlarged structural diagram at A in the middle;

[0043] Figure 6 This is a schematic diagram of the limit clamp structure of a fixing device of a precision instrument status detection machine;

[0044] In the figure: 1, base; 11, detection hole; 12, guide block; 2, positioning assembly; 21, first positioning plate; 22, second positioning plate; 23, limit cavity; 24, control valve; 241, valve housing; 242, cylindrical sliding cavity; 243, blocking block; 244, exhaust column; 245, support spring; 246, C-type airway; 3, limit rod; 31, sliding plug; 32, tension spring; 4, detection fixing assembly Parts; 41, fixing tube; 42, threaded sleeve; 43, pressure ring; 44, pressure plate; 45, support plate; 46, telescopic clamp; 47, support airbag; 48, annular pressure plate; 49, blocking ring; 410, baffle; 411, guide groove; 412, limit groove; 413, clamping groove; 441, clamping plate; 461, arc plate; 462, slider; 463, buffer spring; 5, suction cup; 6, measuring rod. DETAILED DESCRIPTION

[0045] Example 1: Please refer to Figure 1-6 The present invention provides a fixing device and a method for using a precision instrument status detection machine, comprising: a base 1, a positioning assembly 2 and a detection fixing assembly 4, wherein the detection fixing assembly 4 is connected to the base 1 through a limit rod 3;

[0046] The positioning assembly 2 includes a first positioning plate 21 and a second positioning plate 22, which are respectively located at opposite sides of the outer periphery of the base 1, and a limit cavity 23 is horizontally penetrated in the first positioning plate 21 and the second positioning plate 22, and the limit rod 3 is provided in the limit cavity 23 for sliding sealing near one end of the base 1, and the non-sliding sealing end of the limit rod 3 is hinged to the base 1, and a control valve 24 is provided at the other end of the limit cavity 23, and the control valve 24 is used to ensure that the position of the limit rod 3 is stable during detection, and the first positioning plate 21 and the second positioning plate 22 are used to fix the detection position of the detection fixing assembly 4;

[0047] A detection hole 11 is provided through the middle of the base 1, and the detection fixing assembly 4 is installed just above the detection hole 11. The detection fixing assembly 4 is used to fix the measuring rod 6 of the detection instrument of different specifications, and the distance between the measuring rod 6 and the detection part can be adjusted through the detection hole 11;

[0048] A plurality of suction cups 5 are installed at the lower ends of the first positioning plate 21 and the second positioning plate 22 .

[0049] Specifically, during the production and processing of high-precision industrial equipment, in order to ensure the stability of its processing quality, it is necessary to use a status detection machine to regularly detect the operating status of the industrial equipment, usually including the collection of dynamic and static data inside and outside the industrial equipment (temperature, pressure, vibration, etc.). When multiple parts of the equipment to be inspected are inspected, the installation position of the detection fixing component 4 is adjusted by the first positioning plate 21 and the second positioning plate 22 to adapt to the detection requirements of different parts of the equipment to be inspected under different installation conditions in the same plane. The device has a wide applicability.

[0050] Furthermore, if Figure 2 As shown, the limiting cavity 23 is a T-shaped cavity, the main cavity of the T-shaped cavity is perpendicular to the mounting surface of the limiting rod 3, and each end of the T-shaped cavity is respectively connected with the corresponding side surfaces of the first positioning plate 21 and the second positioning plate 22;

[0051] The sliding sealing end of the limit rod 3 is installed with a sliding plug 31, and the sliding plug 31 is slidingly and sealingly connected with the main path cavity of the T-shaped cavity, and the control valve 24 is installed at the end of the branch cavity of the T-shaped cavity;

[0052] The sliding plug 31 is connected to the bottom of the main path cavity of the T-shaped cavity through a tension spring 32.

[0053] In this embodiment, when the detection and fixing component 4 is fixed in the same plane, the elongation length of the limit rods 3 on both sides is changed by pulling the first positioning plate 21 and the second positioning plate 22, and the fixed positions of the first positioning plate 21 and the second positioning plate 22 on both sides of the detection and fixing component 4 are adjusted. This can meet the fixed installation of planes in different states in the same plane. For example, if there are depressions or protrusions on the side plane around the inspected part that cannot be installed, the applicability of the device can be improved by adjusting the fixed positions of the first positioning plate 21 and the second positioning plate 22.

[0054] Furthermore, if Figure 3 As shown, the control valve 24 comprises: a valve housing 241, the valve housing 241 is a columnar structure, the valve housing 241 is installed at the end of the branch cavity of the T-shaped cavity, and the end of the valve housing 241 is coaxially penetrated to form a flow channel, and the flow channel is connected to the branch cavity;

[0055] A cylindrical sliding cavity 242 is coaxially opened in the flow channel, and the diameter of the cylindrical sliding cavity 242 is larger than the flow channel. A blocking block 243 is provided in the cylindrical sliding cavity 242 for sliding sealing. A plurality of supporting springs 245 are provided on the side of the cylindrical sliding cavity 242 close to the main path cavity, and the supporting springs 245 are elastically supported between the blocking block 243 and the end surface of the cylindrical sliding cavity 242;

[0056] A plurality of C-shaped air passages 246 are opened in the circumferential direction inside the side wall of the valve housing 241. Two ports of the C-shaped air passage 246 are respectively located on the inner walls at both ends of the cylindrical sliding cavity 242, and are used to connect the two ends of the cylindrical sliding cavity 242. The length of the blocking block 243 is less than the distance between the two ports of the C-shaped air passage 246.

[0057] An exhaust column 244 is fixedly disposed at the other end of the blocking block 243 , and the exhaust column 244 protrudes from the end surfaces of the first positioning plate 21 and the second positioning plate 22 .

[0058] It should be explained that in the initial state, under the elastic force of the support spring 245, the blocking block 243 is located at one end of the cylindrical sliding cavity 242 close to the outside to block the flow channel. At this time, the interior of the limiting cavity 23 is relatively isolated from the external environment to form a sealed chamber. The contact surfaces of the blocking block 243 and the sliding plug 31 with each cavity are provided with a sealing layer (the sealing layer material is a polytetrafluoroethylene layer, a fluororubber layer, etc.). In order to facilitate assembly, the valve housing 241 is composed of an upper housing and a lower housing, which are plugged and connected.

[0059] Specifically, when the limit rod 3 is extended and adjusted, as the slide plug 31 moves, the blocking block 243 is affected by the internal and external pressures, the blocking block 243 compresses the support spring 245 to move synchronously, and the C-shaped airway 246 opens the limit cavity 23 to allow air to enter. When the limit rod 3 is extended to the required position, the blocking block 243 blocks the flow channel under the elastic force of the support spring 245, and a sealed chamber is formed again in the limit cavity 23. The tension spring 32 is provided to provide the slide plug 31 with a traction force toward the inside of the chamber, thereby enhancing the sealing performance of the blocking block 243 and the cylindrical slide cavity 242, and further improving the stability of the sealed chamber. During detection, since the limit cavities 23 on both sides form stable sealed chambers, the telescopic length of the limit rod 3 can remain relatively stable, avoiding the influence of equipment vibration on the detection fixing component 4 during the detection process, and ensuring the detection accuracy.

[0060] In addition, when the limit rod 3 is contracted and adjusted, the exhaust columns 244 on both sides of the T-shaped cavity are pressed to compress the support spring 245, so that the ports on both sides of the C-shaped airway 246 are connected for exhaust, which is convenient and efficient to operate.

[0061] Furthermore, if Figure 2 and Figure 4 As shown, the detection fixing assembly 4 includes: a fixing cylinder 41, which can be slid up and down in the detection hole 11, the outer peripheral side of the fixing cylinder 41 is a threaded structure, and the outer peripheral side of the fixing cylinder 41 is axially opened with a plurality of guide grooves 411, and the inner peripheral side of the detection hole 11 is provided with a plurality of guide blocks 12 corresponding to the guide grooves 411, and the guide grooves 411 and the guide blocks 12 are relatively slidably matched;

[0062] The outer side of the fixing cylinder 41 is screwed with a threaded sleeve 42, the threaded sleeve 42 is located at the top of the base 1, the bottom of the threaded sleeve 42 is radially protruding with an annular boss, the annular boss is pressed with a pressing ring 43, the pressing ring 43 is fixedly connected to the base 1, and the threaded sleeve 42 and the pressing ring 43 are relatively rotatably matched;

[0063] A pressure plate 44 and a support plate 45 are coaxially arranged at both ends of the fixed cylinder 41, and the support plate 45 is fixed in the fixed cylinder 41. The pressure plate 44 and the fixed cylinder 41 are slidably matched. The pressure plate 44 and the support plate 45 are annular plates with the same specifications. A plurality of radial grooves are evenly arranged on one side of the inner annular surface of the opposite ends of the pressure plate 44 and the support plate 45 along the circumferential direction.

[0064] Telescopic clamps 46 are slidably arranged in the radial slide grooves corresponding to the pressure plate 44 and the support plate 45, and a support airbag 47 is arranged between the telescopic clamp 46 and the fixed cylinder 41, the pressure plate 44 and the support plate 45. The outside of the support airbag 47 is coated with a wear-resistant layer, and the top of the pressure plate 44 is connected to an annular pressure plate 48 through a plurality of connecting rods.

[0065] A limiting groove 412 is formed through the upper part of each guide groove 411, and a plurality of clamping grooves 413 are evenly formed on both sides of the limiting groove 412 along the extending direction thereof;

[0066] A plurality of clamping plates 441 are arranged on the outer peripheral side of the pressure plate 44 corresponding to the clamping slot 413 . The clamping plates 441 are arranged in a plurality of layers along the axial direction of the pressure plate 44 . By rotating the pressure plate 44 , the clamping plates 441 can enter the clamping slot 413 to lock the position of the pressure plate 44 .

[0067] A baffle 410 is rotatably provided on one side of the bottom end of the detection hole 11 to limit the axial position of the measuring rod 6 when it is fixed.

[0068] Specifically, when fixing the measuring rod 6 of the detection instrument, first adjust the baffle 410 to the limit state (so that the baffle 410 is located directly below the detection hole 11), then place the measuring rod 6 on the baffle 410 through the fixing tube 41, and then press the annular pressure plate 48, the support airbag 47 is pressed to push the telescopic clamp 46 to move radially to clamp the measuring rod 6. At the same time, since there is a gap in the circumference of each telescopic clamp 46, the support airbag 47 can assist in clamping the measuring rod 6 through the gap, thereby improving the stability of the device clamping the measuring rod 6; when the measuring rod 6 is clamped, the annular pressure plate 48 is rotated, and the clamping plate 441 is clamped into the clamping groove 413 to lock the position of the pressure plate 44 and the telescopic clamp 46. Then, the baffle 410 is rotated to the non-limiting state, and then the distance between the measuring rod 6 and the detection part is adjusted by screwing the threaded sleeve 42, and the distance between the contact or non-contact measuring rod 6 and the part to be detected is accurately controlled to improve the detection accuracy.

[0069] The supporting airbag 47 is a cylindrical airbag or a plurality of strip-shaped airbags of the same specification, and the wear-resistant layer is a thermoplastic polyurethane coating.

[0070] Preferably, a pressure sensing unit is provided on the inner arc surface of the telescopic clamping plate 46, and a pressure display is provided on one side of the top of the base 1 for displaying the pressure value of the pressure sensing unit, so as to facilitate the operator to accurately control the clamping force of the fixing device.

[0071] Furthermore, if Figure 5 and Figure 6 As shown, the telescopic clamp 46 includes two arc-shaped plates 461 that are tooth-shaped and plugged into each other. Slide blocks 462 are fixed vertically at both ends of the telescopic clamp 46 away from the axis. The slide blocks 462 are slidably set in the radial slide groove. The slide blocks 462 are connected to the inner ends of the radial slide grooves through buffer springs 463.

[0072] Specifically, when the measuring rod 6 is clamped, the slider 462 moves along the radial groove. When the detection is completed, the lock on the pressure plate 44 and the telescopic clamp 46 is released. Each telescopic clamp 46 is synchronously reset under the elastic force of the buffer spring 463 and the support airbag 47, which is convenient for the next detection.

[0073] Furthermore, if Figure 4 As shown, the inner annular surfaces of the pressure plate 44 and the support plate 45 are internal thread structures, and a sealing ring 49 is screwed on the inner annular surfaces of the pressure plate 44 and the support plate 45. When the sealing ring 49 is fully screwed in, its screwed-in end surface is flush with the bottom end of the slide groove, which is used to seal the gap between the pressure plate 44 and the support plate 45 and the measuring rod 6.

[0074] Specifically, each specification of the sealing ring 49 is suitable for the specifications of the measuring rod 6 within a certain diameter range.

[0075] A method for using a fixing device of a precision instrument status detection machine includes:

[0076] S1. Determine the detection condition of the detection part, select the appropriate specification of the measuring rod 6, and consider replacing the appropriate blocking ring 49. At the same time, rotate the baffle 410 to the limit state;

[0077] S2, the measuring rod 6 is placed on the baffle 410 by the detection fixing assembly 4, and then the annular pressure plate 48 is pressed, and the deformation of the supporting airbag 47 is used to push the telescopic clamping plate 46 to move radially to clamp the measuring rod 6 to a preset pressure value, and then the annular pressure plate 48 is rotated to lock the position of the pressure plate 44 by using the clamping plate 441 and the clamping groove 413;

[0078] S3, rotating the baffle 410 to a non-limiting state;

[0079] S4, adjusting the distance between the first positioning plate 21 and the base 1 based on the limit rod 3, fixing the first positioning plate 21 on the surface to be inspected or the adjacent surface of the part to be inspected by using the suction cup 5, and fixing the position of the detection fixing component 4;

[0080] S5. Based on the limit rod 3, the distance between the second positioning plate 22 and the base 1 is adjusted, and the second positioning plate 22 is fixed on the surface to be inspected or the adjacent surface of the part to be inspected by using the suction cup 5, and the detection angle of the detection fixing component 4 is adjusted and fixed;

[0081] S6, rotating the threaded sleeve 42 to drive the fixed tube 41 and the measuring rod 6 to move downward, and adjusting the distance between the measuring rod 6 and the surface to be inspected according to the preset requirements;

[0082] S7. Start the testing instrument to test the parts of the equipment to be tested.

[0083] Embodiment 2: It is different from Embodiment 1 in that: the limiting rod 3 on at least one side of the first positioning plate 21 is hinged to the axis of the base 1, and the hinge axis is arranged horizontally.

[0084] In this embodiment, when the detection and fixing component 4 is fixed on a plane, the position of the detection and fixing component 4 is first fixed by the first positioning plate 21 or the second positioning plate 22, and then the detection angle of the detection and fixing component 4 is adjusted by rotating and fixing the remaining first positioning plate 21 or the second positioning plate 22 to adapt to the detection requirements of different parts of the equipment to be inspected under different installation conditions in the two-dimensional space. For example, it can be suitable for data collection of parts to be inspected between surfaces (plates, beams, columns, frames, etc.) with different height differences and inclination angles in the two-dimensional space, thereby further improving the applicability of the device.

[0085] Example 3: Figure 1 and Figure 2 The difference between it and Example 1 is that the limiting rod 3 on one side of the first positioning plate 21 is hinged to the axis of the base 1, and the hinge axis is horizontally arranged, and the limiting rod 3 on one side of the second positioning plate 22 is ball-hinged to the base 1.

[0086] In this embodiment, when the detection and fixing component 4 is fixed on a plane, the position of the detection and fixing component 4 is fixed by the first positioning plate 21, and then the second positioning plate 22 is rotated and fixed in the three-dimensional space, and the detection angle of the detection and fixing component 4 is adjusted to adapt to the detection requirements of different parts of the equipment to be inspected under different installation conditions in the three-dimensional space. For example, it can be applicable to data collection of parts to be inspected between surfaces (plates, beams, columns, frames, etc.) with different height differences and inclination angles in the three-dimensional space, further improving the applicability of the device.

[0087] In summary, when the present device is used to detect multiple parts of the equipment to be inspected, the installation position and the detection angle of the detection fixing component 4 are adjusted respectively by the first positioning plate 21 and the second positioning plate 22, which can adapt to the detection requirements of different parts of the equipment to be inspected under different installation conditions. For example, it can be suitable for data collection of parts to be inspected between surfaces with different height differences and inclination angles (plates, beams, columns, frames, etc.), and the device has a wide applicability.

[0088] What has been described above are only several embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention is disclosed as above in terms of preferred embodiments, they are not intended to limit the present invention. Any technician familiar with the profession, without departing from the scope of the technical solution of the present invention, using the technical contents disclosed above to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A fixing device for a precision instrument status detection machine, characterized in that: include: A base (1), a positioning assembly (2) and a detection and fixing assembly (4), wherein the detection and fixing assembly (4) is connected to the base (1) via a limiting rod (3); The positioning assembly (2) comprises a first positioning plate (21) and a second positioning plate (22), the first positioning plate (21) and the second positioning plate (22) are respectively located at opposite sides of the outer periphery of the base (1), and a limit cavity (23) is horizontally penetrated in the first positioning plate (21) and the second positioning plate (22), the limit rod (3) is slidingly sealed in the limit cavity (23) near one end of the base (1), the non-sliding sealing end of the limit rod (3) is hinged to the base (1), and the other end of the limit cavity (23) is provided with a control valve (24), the control valve (24) is used to ensure that the position of the limit rod (3) is stable during detection, the first positioning plate (21) is used to fix the detection position of the detection fixing assembly (4), and the second positioning plate (22) is used to adjust and fix the detection angle of the detection fixing assembly (4) to meet the detection requirements of the equipment to be detected under different installation conditions; A detection hole (11) is provided through the middle of the base (1), and the detection fixing assembly (4) is installed directly above the detection hole (11). The detection fixing assembly (4) is used to fix the measuring rod (6) of the detection instrument of different specifications, and can adjust the distance between the measuring rod (6) and the detection part through the detection hole (11); A plurality of suction cups (5) are installed at the lower ends of the first positioning plate (21) and the second positioning plate (22).

2. A fixing device for a precision instrument status detection machine according to claim 1, characterized in that: The limiting cavity (23) is a T-shaped cavity, the main cavity of the T-shaped cavity is perpendicular to the mounting surface of the limiting rod (3), and each end of the T-shaped cavity is respectively connected to the corresponding side surfaces of the first positioning plate (21) and the second positioning plate (22); A sliding plug (31) is installed at the sliding sealing end of the limit rod (3), the sliding plug (31) is slidingly and sealingly connected to the main path cavity of the T-shaped cavity, and the control valve (24) is installed at the end of the branch path cavity of the T-shaped cavity; The sliding plug (31) is connected to the bottom of the main path cavity of the T-shaped cavity via a tension spring (32).

3. The fixing device of a precision instrument status detection machine according to claim 1, characterized in that: The limiting rod (3) on one side of the first positioning plate (21) is hinged to the base (1) axis, and the hinge axis is arranged horizontally, and the limiting rod (3) on one side of the second positioning plate (22) is ball-hinged to the base (1).

4. A fixing device for a precision instrument status detection machine according to claim 2, characterized in that: The control valve (24) comprises: a valve housing (241), the valve housing (241) being a columnar structure, the valve housing (241) being installed at the end of the branch cavity of the T-shaped cavity, and a flow channel being coaxially penetrated through the end of the valve housing (241), the flow channel being in communication with the branch cavity; A cylindrical sliding cavity (242) is coaxially opened in the flow channel, the diameter of the cylindrical sliding cavity (242) is larger than the flow channel, a blocking block (243) is provided in the cylindrical sliding cavity (242) for sliding sealing, a plurality of supporting springs (245) are provided on the side of the cylindrical sliding cavity (242) close to the main path cavity, and the supporting springs (245) are elastically supported between the blocking block (243) and the end surface of the cylindrical sliding cavity (242); A plurality of C-shaped air channels (246) are provided inside the side wall of the valve housing (241) along the circumferential direction, and two ports of the C-shaped air channels (246) are respectively located on the inner walls at both ends of the cylindrical sliding cavity (242) for connecting the two ends of the cylindrical sliding cavity (242), and the length of the blocking block (243) is less than the distance between the two ports of the C-shaped air channels (246); An exhaust column (244) is fixedly disposed at the other end of the blocking block (243), and the exhaust column (244) is disposed protruding from the end surfaces of the first positioning plate (21) and the second positioning plate (22).

5. The fixing device of a precision instrument status detection machine according to claim 1, characterized in that: The detection fixing assembly (4) comprises: a fixing cylinder (41), the fixing cylinder (41) being slidably arranged in the detection hole (11) up and down, the outer peripheral side of the fixing cylinder (41) being a threaded structure, and the outer peripheral side of the fixing cylinder (41) being axially provided with a plurality of guide grooves (411), the inner peripheral side of the detection hole (11) being provided with a plurality of guide blocks (12) corresponding to the guide grooves (411), and the guide grooves (411) and the guide blocks (12) being relatively slidably matched; A threaded sleeve (42) is threadedly connected to the outer side of the fixing cylinder (41), the threaded sleeve (42) is located at the top of the base (1), an annular boss is radially protruded from the bottom of the threaded sleeve (42), a pressing ring (43) is pressed on the annular boss, the pressing ring (43) is fixedly connected to the base (1), and the threaded sleeve (42) and the pressing ring (43) are relatively rotatably matched; A pressure plate (44) and a support plate (45) are coaxially arranged at both ends of the fixed cylinder (41), and the support plate (45) is fixed in the fixed cylinder (41). The pressure plate (44) and the fixed cylinder (41) are slidably matched. The pressure plate (44) and the support plate (45) are annular plate structures of the same specifications. One side of the inner annular surface of the opposite ends of the pressure plate (44) and the support plate (45) is evenly provided with a plurality of radial sliding grooves along the circumferential direction. A telescopic clamp (46) is slidably arranged in the radial sliding grooves corresponding to the pressure plate (44) and the support plate (45), and a support air bag (47) is arranged between the telescopic clamp (46) and the fixed cylinder (41), the pressure plate (44) and the support plate (45). The outside of the support air bag (47) is coated with a wear-resistant layer. The top of the pressure plate (44) is connected to an annular pressure plate (48) through a plurality of connecting rods.

6. A fixing device for a precision instrument status detection machine according to claim 5, characterized in that: The telescopic clamp (46) comprises two arc-shaped plates (461) which are tooth-shaped and plugged into each other. Slide blocks (462) are fixed vertically at both ends of the telescopic clamp (46) away from the axis. The slide blocks (462) are slidably arranged in the radial slide groove. The slide blocks (462) are connected to the inner ends of the radial slide grooves via buffer springs (463).

7. The fixing device of a precision instrument status detection machine according to claim 5, characterized in that: The inner annular surfaces of the pressure plate (44) and the support plate (45) are of internal threaded structure, and a sealing ring (49) is screwed on the inner annular surfaces of the pressure plate (44) and the support plate (45). When the sealing ring (49) is fully screwed in, its screwed-in end surface is flush with the bottom end of the slide groove, and is used to seal the gap between the pressure plate (44) and the support plate (45) and the measuring rod (6).

8. The fixing device of a precision instrument status detection machine according to claim 5, characterized in that: A limiting groove (412) is formed through the upper portion of each guide groove (411), and a plurality of clamping grooves (413) are evenly formed on both sides of the limiting groove (412) along the extension direction thereof; A plurality of clamping plates (441) are arranged on the outer peripheral side of the pressure plate (44) corresponding to the clamping slot (413), and the clamping plates (441) are arranged in a plurality of layers along the axial direction of the pressure plate (44). By rotating the pressure plate (44), the clamping plates (441) can enter the clamping slot (413) to lock the position of the pressure plate (44).

9. The fixing device of a precision instrument status detection machine according to claim 1, characterized in that: A baffle (410) is rotatably provided on one side of the bottom end of the detection hole (11) and is used to axially limit the position of the measuring rod (6) when it is fixed.

10. A fixing device for a precision instrument status detection machine according to any one of claims 1 to 9, characterized in that: The method for using the fixing device comprises: S1. Determine the detection condition state of the detection part, select the appropriate specification of the measuring rod (6), and consider replacing the appropriate sealing ring (49). At the same time, rotate the baffle (410) to the limit state; S2, placing the measuring rod (6) on the baffle (410) by the detection fixing assembly (4), then pressing the annular pressure plate (48), using the deformation of the support airbag (47) to push the telescopic clamp (46) to move radially to clamp the measuring rod (6) to a preset pressure value, and then rotating the annular pressure plate (48) to lock the position of the pressure plate (44) by using the clamping plate (441) and the clamping groove 413; S3, rotating the baffle (410) to a non-limiting state; S4, adjusting the distance between the first positioning plate (21) and the base (1) based on the limit rod (3), fixing the first positioning plate (21) on the surface to be inspected or the adjacent surface of the part to be inspected by using the suction cup (5), and fixing the position of the detection fixing component (4); S5. Based on the limit rod (3), the distance between the second positioning plate (22) and the base (1) is adjusted, and the second positioning plate (22) is fixed on the surface to be inspected or the adjacent surface of the part to be inspected by using the suction cup (5), and the detection angle of the detection fixing component (4) is adjusted and fixed; S6, rotating the threaded sleeve (42) to drive the fixed tube (41) and the measuring rod (6) to move downward, and adjusting the distance between the measuring rod (6) and the surface to be inspected according to preset requirements; S7. Start the testing instrument to test the parts of the equipment to be tested.

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