A hole parameter measuring device

Abstract

This application provides a hole parameter measuring device, relating to the field of measurement technology. The device includes a detection component, a mounting component, a lifting drive component, a rotating drive component, and a support component. By abutting the support component against the surface of the part, the stability of the hole parameter measuring device during the measurement process is improved. The lifting and rotating drive components enable the detection component to move up and down and rotate within the hole of the part, facilitating the measurement of various hole parameters and improving measurement efficiency. The detection component includes a connector, a sealing component, a detection component, a piston, a pressure regulating component, and a position detection component. During measurement, the pressure regulating component can adjust the air pressure between the sealing component and the piston in real time to ensure the detection component abuts against the inner wall of the hole. The position detection component can record the position of the piston in real time, allowing personnel to obtain hole information. This solves the problem of traditional measurement methods being unable to directly measure data such as roughness, thus improving the measurement accuracy of the hole parameter measuring device.

Description

Technical Field

[0001] This application relates to the field of measurement technology, and in particular to a hole parameter measuring device. Background Technology

[0002] In engineering machinery, various types of holes are often machined on parts, with varying requirements for hole precision. The main parameters affecting hole precision include hole depth, perpendicularity, ovality, and surface roughness. The accuracy of hole parameter measurements directly impacts the overall machining precision of the part, and consequently, the performance of the entire engineering machinery.

[0003] In the existing technology, technicians often use a depth gauge to measure the depth of a hole; a vernier caliper to measure the diameter and ellipticity of a hole; a caliper bar and a right-angle ruler to measure the perpendicularity of a hole; and visual inspection or comparison with test blocks to confirm the roughness of the hole's inner wall.

[0004] However, existing methods for measuring borehole parameters suffer from low measurement efficiency and inaccurate measurement data. Summary of the Invention

[0005] This application provides a hole parameter measuring device that improves measurement efficiency and accuracy.

[0006] In a first aspect, this application provides a hole parameter measuring device for measuring the parameters of a hole to be measured on the surface of a part. The hole parameter measuring device includes a detection component, a mounting component, a lifting drive component, a rotating drive component, and a support component, wherein the support component is used to abut against the surface of the part.

[0007] The detection component is slidably connected to the mounting component, and the lifting drive component is connected to the detection component to drive the detection component to move up and down relative to the mounting component.

[0008] The mounting component is rotatably connected to the support component, and the rotation drive is connected to the mounting component to drive the mounting component to rotate relative to the support component.

[0009] The detection assembly includes a connector, a plug, a detection element, a piston, a pressure regulating element, and a position detection element. The connector has a cavity extending along the length of the connector. The plug and the piston are spaced apart in the cavity. There is a pressure regulating cavity between the piston and the plug, and the pressure regulating element is connected to the pressure regulating cavity. The piston is movably connected to the detection element, and the detection end of the detection element is located outside the cavity.

[0010] The position detection element is located in the pressure regulating chamber and is used to measure the position of the piston.

[0011] Optionally, the above-mentioned orifice parameter measuring device may also include a movable connecting rod, wherein the piston and the detection element are connected by the movable connecting rod, the first end of the movable connecting rod is rotatably connected to the piston, and the second end of the movable connecting rod is rotatably connected to the detection element.

[0012] The movable link includes a first link segment, a second link segment, and a third link segment connected in sequence. The extension directions of the first link segment and the third link segment are parallel to each other, and both are set at an angle to the second link segment.

[0013] The end side wall of the connector near the detection component has a movable opening, and part of the third connecting rod section passes through the movable opening and is located outside the cavity.

[0014] The first end of the test piece near the movable connecting rod is rotatably connected to the connecting piece.

[0015] Optionally, in the above-mentioned hole parameter measuring device, a rolling element is provided at the second end of the detection element.

[0016] Optionally, the above-mentioned hole parameter measuring device may also include a bearing, and the mounting assembly is rotatably connected to the support assembly via the bearing.

[0017] The support assembly has a support opening, within which the bearing and part of the mounting assembly are located; the outer ring surface of the bearing is in close contact with the inner wall of the support opening, and the inner ring surface of the bearing is in close contact with part of the mounting assembly.

[0018] In the above-mentioned hole parameter measuring device, optionally, the mounting component is provided with a mounting opening, the connector passes through the mounting opening, the driving end of the lifting drive component is provided with a lifting gear, and the outer wall surface of the connector is provided with a lifting rack extending along the extension direction of the connector, and the lifting gear and the lifting rack mesh.

[0019] In the aforementioned hole parameter measuring device, optionally, the mounting assembly includes a mounting plate and a mounting protrusion, with the mounting opening extending through the mounting plate and the mounting protrusion along the thickness direction of the mounting assembly; the mounting protrusion is located at the support opening.

[0020] The raised outer peripheral wall of the mounting plate fits tightly against the inner ring surface of the bearing.

[0021] In the aforementioned hole parameter measuring device, optionally, the drive end of the rotary drive component is provided with a first rotary gear, and the support assembly is provided with a second rotary gear, with the first rotary gear and the second rotary gear meshing.

[0022] In the above-mentioned hole parameter measuring device, optionally, the first rotating gear is a ring gear, which is located close to the support opening and surrounds the outer periphery of the support opening.

[0023] In the above-mentioned hole parameter measuring device, optionally, the support assembly includes a support plate and at least three support legs, the at least three support legs being connected to the support plate at circumferential intervals.

[0024] The support opening is provided on the support plate, and the support opening is located at the geometric center of the support plate.

[0025] In the above-mentioned hole parameter measuring device, optionally, the first end of the support leg is connected to the support plate, and the second end of the support leg is provided with a suction cup.

[0026] At least three support legs have equal extension lengths along the thickness direction of the support plate.

[0027] This application provides a hole parameter measuring device, which includes a detection component, a mounting component, a lifting drive component, a rotating drive component, and a support component. By providing the support component, which abuts against the surface of the part, the stability of the hole parameter measuring device during measurement is improved. Through the lifting and rotating drive components, the detection component can be raised and lowered relative to the mounting component and rotated relative to the support component, realizing the lifting and rotation of the detection component within the hole of the part. This hole parameter measuring device integrates multiple measurement methods, improving detection efficiency and shortening the measurement time. The measurement time for the parameters of the machined hole is reduced. Additionally, the detection assembly includes a connector, a plug, a detection element, a piston, a pressure regulating element, and a position detection element. By setting these components, during the measurement process of the hole parameter measuring device, the pressure regulating element can adjust the air pressure between the plug and the piston in real time, the moving piston pushes the detection element to contact the inner wall of the hole in real time, and the position detection element can record the position of the piston in real time. Thus, the data acquisition personnel can obtain hole information through the position detection element, solving the problem that traditional measurement methods cannot directly measure roughness and other data, and improving the measurement accuracy of the hole parameter measuring device.

[0028] The structure of this application, as well as its other practical purposes and beneficial effects, will become more apparent and understandable through the description of the preferred embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of the hole parameter measuring device provided in the embodiments of this application;

[0031] Figure 2 A schematic diagram of the hole parameter measuring device provided in this application when it is on the surface of a part;

[0032] Figure 3 This is a schematic diagram of the detection component of the orifice parameter measuring device provided in an embodiment of this application.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100: Detection component; 200: Support component; 300: Mounting component; 400: Lifting drive component; 500: Rotation drive component;

[0035] 101: Connecting component; 102: Sealing component; 103: Piston; 104: Moving connecting rod; 105: Detection component; 106: Rolling component;

[0036] 201: Support plate; 202: Support leg; 203: Suction cup;

[0037] 301: Mounting plate; 302: Mounting protrusion;

[0038] 401: Lifting gear; 402: Lifting rack;

[0039] 600: Bearing; 700: Part.

[0040] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0041] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0042] The inventors of this application discovered during their research that in engineering machinery, parts are often connected using bolts and nuts. This connection method requires machining holes with varying precision requirements on the parts for assembly. For parts with high precision requirements, the depth and precision (perpendicularity, ovality, roughness) of the holes machined during manufacturing affect the overall performance of the part, and in severe cases, can significantly impact the operation of the equipment using the part. Currently, commonly used equipment for machining holes includes drilling machines, milling machines, boring machines, and radial drilling machines. Due to factors such as equipment stability, operator skill level, tool condition, and machining parameters, the depth and precision (perpendicularity, ovality, roughness) of the same type of hole machined by these machines can vary.

[0043] In existing technologies, technicians typically measure the depth of a hole using a depth gauge; the diameter and ovality of a hole are typically measured using vernier calipers; and the perpendicularity of a hole is typically measured using a calibration bar and a right-angle ruler. The roughness of the hole's inner wall is usually confirmed by visual inspection or by comparing it with a reference test block.

[0044] However, during hole machining, to facilitate processing, most drill bits have a drill tip angle, resulting in a tapered shape at the bottom of the hole after machining. This significantly affects the measurement of hole depth, leading to substantial errors when using depth gauges. Furthermore, the roughness of the hole's inner wall can only be observed visually or compared with test blocks, making it impossible to obtain accurate data. In summary, measuring hole depth and accuracy requires numerous measuring tools, resulting in low efficiency in hole parameter measurement. Moreover, existing measurement methods are susceptible to human error, leading to inaccurate measurement data.

[0045] Therefore, this application provides a hole parameter measuring device, which includes a detection component, a mounting component, a lifting drive component, a rotating drive component, and a support component. By providing the support component, which abuts against the surface of the part, the stability of the hole parameter measuring device during the measurement process is improved. By providing the lifting and rotating drive components, the detection component can be raised and lowered relative to the mounting component and rotated relative to the support component, realizing the lifting and rotation of the detection component within the hole of the part. This hole parameter measuring device integrates multiple measurement methods, improving detection efficiency. This improves efficiency and shortens the measurement time for hole parameters after machining. Furthermore, the detection assembly includes a connector, a plug, a detection component, a piston, a pressure regulating component, and a position detection component. By setting these components, during the hole parameter measurement process, the pressure regulating component can adjust the air pressure between the plug and the piston in real time, the moving piston pushes the detection component to contact the inner wall of the hole in real time, and the position detection component can record the piston's position in real time. Thus, the data acquisition personnel can obtain hole information through the position detection component, solving the problem that traditional measurement methods cannot directly measure roughness and other data, and improving the measurement accuracy of the hole parameter measurement device.

[0046] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0047] In a first aspect, this application provides a hole parameter measuring device for measuring the parameters of a hole to be measured on the surface of a part 700. The hole parameter measuring device includes a detection component 100, a mounting component 300, a lifting drive component 400, a rotating drive component 500, and a support component 200, the support component 200 being used to abut against the surface of the part 700.

[0048] The detection component 100 is slidably connected to the mounting component 300, and the lifting drive component 400 is connected to the detection component 100 to drive the detection component 100 to rise and fall relative to the mounting component 300.

[0049] The mounting component 300 is rotatably connected to the support component 200, and the rotation drive component 500 is connected to the mounting component 300 to drive the mounting component 300 to rotate relative to the support component 200.

[0050] The detection assembly 100 includes a connector 101, a plugging component 102, a detection component 105, a piston 103, a pressure regulating component, and a position detection component. The connector 101 has a cavity extending along the length of the connector 101. The plugging component 102 and the piston 103 are spaced apart in the cavity. There is a pressure regulating cavity between the piston 103 and the plugging component 102. The pressure regulating component communicates with the pressure regulating cavity. The piston 103 is movably connected to the detection component 105. The detection end of the detection component 105 is located outside the cavity.

[0051] The position detection element is located in the pressure regulating chamber and is used to measure the position of piston 103.

[0052] For example, refer to Figure 1 and Figure 2 As shown, when it is necessary to measure the parameters of the hole on part 700, the support assembly 200 and the surface of part 700 are first brought into contact. This ensures the stability of the hole parameter measuring device during the testing process and ensures that the hole parameter measuring device is parallel to the surface of part 700, thereby improving the measurement accuracy of the hole parameters. Then, the position of the detection assembly 100 in the hole is adjusted by the lifting drive 400. When it is time to measure the hole depth, perpendicularity, and roughness parameters, the lifting drive 400 is used to move the detection assembly 100 up and down relative to the mounting assembly 300, thus allowing the detection assembly 100 to move up and down in the hole. When it is time to measure the ellipticity parameter of the hole, the lifting drive 400 is used to move the detection assembly 100 to the corresponding position in the hole, and the rotation drive 500 is used to rotate the mounting assembly 300 relative to the support assembly 200, thus allowing the detection assembly 100 to rotate inside the hole. This hole parameter measuring device can detect hole depth, as well as hole ellipticity, perpendicularity, and roughness. It integrates multiple testing methods and effectively improves the measurement efficiency of hole parameters.

[0053] When measuring borehole parameters, the detection end of the detection element 105 is always in contact with the inner wall of the borehole. To ensure that the detection end of the detection element 105 is in contact with the inner wall of the borehole in real time, a connecting rod is set up, in which the piston 103 and the sealing element 102 are placed in the connecting rod cavity. The pressure regulating component adjusts the pressure in the regulating cavity between the sealing element 102 and the piston 103 in real time to ensure that the detection end of the detection element 105 is in contact with the inner wall of the borehole in real time. By setting up a position detection element, the position detection element detects the position between the piston 103 and the sealing element 102 in real time to accurately confirm the positional change of the detection element 105, and thus confirm the relevant borehole parameter information.

[0054] This orifice parameter measuring device, by setting up a pressure regulating component and a position detection component, eliminates the need for manual control of the detection component 105. It has the advantages of high automation and less human factor in the detection results, which helps to improve the accuracy of the data detected by the orifice parameter measuring device and reduce the adverse effects of human factors on the measurement data.

[0055] In one possible implementation, the support assembly 200 includes a support plate 201 and at least three support legs 202, the at least three support legs 202 being circumferentially connected to the support plate 201.

[0056] The support opening is provided on the support plate 201, and the support opening is located at the geometric center of the support plate 201.

[0057] For example, refer to Figure 2 As shown, when the hole parameter measuring device is placed on the surface of part 700, the first end of the support leg 202 abuts against the surface of the part 700 to be measured, and the support plate 201 connected to the second end of the support leg 202 is above the surface of part 700. At this time, the mounting assembly 300, the lifting drive 400 and the rotating drive 500 are all on the support surface provided by the support plate 201, and can apply a force toward the hole to be measured to the support plate 201. In this way, the support leg 202 and the support plate 201 can provide support force for the entire hole parameter measuring device to ensure the stability of the hole parameter measuring device during the measurement process.

[0058] In addition, by setting the support leg 202, there is a gap between the support plate 201 and the surface to be measured of the part 700. During the process of raising, lowering and rotating the detection component 100, the measuring personnel can adjust the position of the detection component 100 in real time through the gap, and adjust the position of the detection end of the detection piece 105 in a timely manner, thereby improving the accuracy of the hole parameter measuring device.

[0059] In some embodiments, the support plate 201 is a circular plate, and the three support legs 202 are connected near the outer periphery of the support plate 201 with the straight line containing the center of the circular plate as the axis of symmetry. In this case, the geometric center is the center of the circular plate.

[0060] In some other embodiments, the support plate 201 is a square plate, and four support legs 202 are connected to the support plate 201 with the straight line where the intersection of the two diagonals of the square plate is the axis of symmetry. The support legs 202 can be located near the four corners of the square plate, and the geometric center is the intersection of the two diagonals of the square plate.

[0061] It is understood that the number of support legs 202 can be 3, 4, or 5. The number of support legs 202 should be set to meet the stability requirements of the hole parameter testing device. This application does not limit the number of support legs 202.

[0062] For example, by using the support leg 202 as the axis of symmetry about the straight line containing the geometric center of the support plate 201, the support stability of the support assembly 200 can be improved.

[0063] As one feasible implementation, the first end of the support leg 202 is connected to the support plate 201, and the second end of the support leg 202 is provided with a suction cup 203.

[0064] At least three support legs 202 have equal extension lengths along the thickness direction of the support plate 201.

[0065] In some embodiments, the suction cup 203 is a vacuum suction cup made of rubber. Since the vacuum suction cup 203 is made of rubber, it will not cause any damage to the surface of the part 700 when it is picked up or put down. The suction cup 203 is connected to the vacuum equipment through the connecting pipe, and then it is brought into contact with the surface of the part 700. The vacuum equipment is started to draw suction, so that negative air pressure is generated inside the suction cup 203, thereby fastening the surface of the part 700 and the suction cup 203.

[0066] In other embodiments, the suction cup 203 is an electromagnetic suction cup 203, and the material of the suction cup 203 can be metal. The electromagnetic suction cup 203 is a suction cup that utilizes electromagnetic principles. By energizing the suction cup 203, a magnetic force is generated, which tightly attracts the suction cup 203 to the surface of the part 700. When the power is turned off, the magnetic force of the suction cup 203 disappears, achieving demagnetization, and thus the suction cup 203 separates from the surface of the part 700. The electromagnetic suction cup 203 uses DC power supply, which is stable and has strong suction force, improving the connection strength between the suction cup 203 and the surface to be measured.

[0067] For example, the support leg 202 has a telescopic function. The support leg 202 includes a fixed rod and a telescopic rod. The telescopic rod is slidably connected to the fixed rod, the fixed rod is connected to the suction cup 203, and the telescopic rod is connected to the support plate 201. In this way, by adjusting the telescopic rod, the distance between the support plate 201 and the surface of the part 700 can be adjusted to ensure that the support plate 201 and the surface to be measured are parallel to each other, thereby improving the testing accuracy of the hole parameter measuring device.

[0068] In some embodiments, when there is a protrusion on the surface to be measured of part 700, the protrusion will affect the placement of the hole parameter measuring device. In this case, the length of the support leg 202 can be increased by adjusting the telescopic rod so that the hole parameter measuring device can measure the hole.

[0069] For example, parallelism refers to the degree to which two planes are parallel, specifically the maximum permissible error in the parallelism of one plane relative to another. Testers can determine the parallelism between the support plate 201 and the surface with the hole using a comparative measurement method. First, the tester selects two reference surfaces with high parallelism as reference surfaces. The surface with the hole is placed on a horizontal plane of one of the reference surfaces, and a suitable measuring tool (such as a vernier caliper or parallelism measuring instrument) is used to measure the distance between the surface with the hole and the other reference surface. The surface with the hole is then moved, and the measurement is repeated, recording the distance values ​​at different locations. By comparing the measurement results at different locations, the parallelism can be calculated.

[0070] For example, the outer peripheral wall of the first end of the support leg 202 connected to the support plate 201 is provided with a first thread, the support plate 201 has a corresponding opening, and the inner peripheral wall of the opening is provided with a second thread. The first thread and the second thread are screwed together. By making the support plate 201 and the support leg 202 detachably connected, it is beneficial to the later maintenance of the hole parameter measuring device.

[0071] As one feasible implementation, the hole parameter measuring device also includes a bearing 600, and the mounting assembly 300 is rotatably connected to the support assembly 200 via the bearing 600.

[0072] The support assembly 200 has a support opening, and the bearing 600 and part of the mounting assembly 300 are located inside the support opening; the outer ring surface of the bearing 600 is in close contact with the inner wall surface of the support opening, and the inner ring surface of the bearing 600 is in close contact with part of the mounting assembly 300.

[0073] For example, by rotating the drive component 500 to drive the mounting component 300, the mounting component 300 rotates relative to the support component 200 under the drive of the bearing 600. In this way, the mounting component 300 drives the connector 101 to rotate, and then the detection end of the detection component 105 rotates along the circumference of the hole.

[0074] For example, the outer ring surface of bearing 600 is in close contact with the inner wall of the support opening, and the inner ring surface of bearing 600 is in close contact with part of the mounting assembly 300. This creates an interference fit between the inner ring of bearing 600 and the mounting assembly 300, and between the outer ring and the support opening; it improves the tightness of the connection between the outer ring of bearing 600 and the support assembly 200, and between the inner ring of bearing 600 and the mounting assembly 300, improves the smoothness of the rotation of the mounting assembly 300 relative to the support assembly 200, and improves the load-bearing capacity of bearing 600; moreover, the interference fit reduces the number of components required for the hole parameter detection device, which is beneficial for simplifying the hole parameter measurement device.

[0075] For example, bearing 600 can be a precision bearing to further improve the assembly accuracy of the bore parameter detection device.

[0076] In one feasible implementation, the mounting assembly 300 includes a mounting plate 301 and a mounting protrusion 302, with a mounting opening extending through the mounting plate 301 and the mounting protrusion 302 along the thickness direction of the mounting assembly 300; the mounting protrusion 302 is located at the support opening.

[0077] The outer peripheral wall of the mounting protrusion 302 and the inner ring surface of the bearing 600 are in close contact.

[0078] For example, a mounting protrusion 302 is provided on the side of the mounting plate 301 near the support plate 201. The centers of the mounting plate 301 and the mounting protrusion 302 coincide, and a mounting opening is provided at the center. The connector 101 passes through the mounting opening and moves up and down along the axial direction of the mounting plate 301 under the drive of the lifting drive 400.

[0079] For example, by setting a mounting protrusion 302 and tightly abutting the outer peripheral wall of the mounting protrusion 302 against the inner gear ring of the bearing 600, under the driving action of the rotation drive member 500, the mounting protrusion 302 can rotate relative to the support plate 201, driving the mounting plate 301 to rotate, and then the mounting plate 301 drives the connector 101 to rotate, and the connector 101 drives the detection end of the detection member 105 to rotate along the center of the hole.

[0080] As one feasible implementation, the mounting assembly 300 is provided with a mounting opening, the connector 101 passes through the mounting opening, the driving end of the lifting drive 400 is provided with a lifting gear 401, and the outer wall surface of the connector 101 is provided with a lifting rack 402 extending along the extension direction of the connector 101, and the lifting gear 401 and the lifting rack 402 mesh.

[0081] In some embodiments, the lifting drive component 400 includes a lifting drive motor. When the lifting drive motor is started, its drive end drives the lifting gear 401 to rotate. The lifting rack 402, disposed on the outer wall of the connector 101, moves along the axial direction of the connector 101 under the action of the lifting gear 401. Thus, the connector 101 moves along its own axial direction through the mounting opening. The connector 101, rotating along its own axial direction, drives the detection component 105 to move along the depth direction of the hole, measuring parameters such as the hole depth. By converting the rotational motion of the lifting drive motor into the linear reciprocating motion of the rack, the movement of the connector 101 is realized, improving the transmission efficiency.

[0082] For example, the lifting rack 402 may be equipped with a scale so that the measuring personnel can check the depth of the connector 101 extending into the hole in real time.

[0083] In one feasible implementation, the drive end of the rotation drive 500 is provided with a first rotation gear, and the support assembly 200 is provided with a second rotation gear, with the first rotation gear and the second rotation gear meshing.

[0084] For example, the rotation drive 500 includes a rotation drive motor. When the drive end of the rotation drive motor is connected to the first rotation gear, the rotation drive motor drives the first rotation gear to rotate, and then the first rotation gear drives the second rotation gear located in the support assembly 200 to rotate. In this way, the mounting plate 301 rotates, the mounting plate 301 drives the mounting protrusion 302 to rotate, and then the mounting protrusion 302 drives the bearing 600 to rotate, realizing the rotation of the mounting assembly 300 relative to the support assembly 200. In this way, the connector 101 provided in the mounting opening rotates, and the connector 101 drives the detection element 105 to rotate along the circumference of the hole.

[0085] As one feasible implementation, the first rotating gear is a ring gear, which is located close to the support opening and surrounds the outer periphery of the support opening.

[0086] For example, aligning the central axis of the ring gear with the central axis of the second rotating gear can improve the meshing degree between the first rotating gear and the second rotating gear, thereby increasing the transmission efficiency between them.

[0087] Understandably, by surrounding the first rotating gear with the outer periphery of the support opening, the engagement of the first and second rotating gears is avoided to prevent adverse effects on the rotation of the bearing 600.

[0088] As one feasible implementation, the hole parameter measuring device also includes a movable connecting rod 104, with the piston 103 and the detection element 105 connected by the movable connecting rod 104. The first end of the movable connecting rod 104 is rotatably connected to the piston 103, and the second end of the movable connecting rod 104 is rotatably connected to the detection element 105.

[0089] The movable link 104 includes a first link segment, a second link segment, and a third link segment connected in sequence. The extension directions of the first link segment and the third link segment are parallel to each other and are both set at an angle to the second link segment.

[0090] The connector 101 has a movable opening on the end side wall near the detector 105, and part of the third connecting rod section passes through the movable opening and is located outside the cavity.

[0091] The first end of the detection component 105 near the movable connecting rod 104 is rotatably connected to the connecting component 101.

[0092] For example, connector 101 can be a connecting rod, and detection component 105 can be a detection rod. The connecting rod has a connecting opening at its first end near the detection component 105, and also a connecting hole for a pin to pass through. The opening of the connecting opening faces the detection component 105. It should be noted that the connecting opening is not connected to the cavity. The detection component 105 has a detection through hole at its first end near the connector 101. The first end of the detection rod is located at the opening of the first end of the connecting rod, and the pin passes through the connecting hole of the connector 101 and the detection through hole of the detection component 105, thus allowing the first end of the detection rod to be rotatably connected to the first end of the connecting rod.

[0093] For example, when the first end of the detection element 105 is aligned with the connecting element 101 along its axial extension direction, the rotation angle of the detection end of the detection element 105 is limited. Therefore, the hole parameter measuring device is also provided with a movable connecting rod 104. The first end of the movable connecting rod 104 is rotatably connected to the piston 103, and the second end of the movable connecting rod 104 is rotatably connected to the detection element 105. Moreover, part of the movable connecting rod 104 is located outside the cavity, as shown in the reference. Figure 3 As shown, the rotation direction of the detection end of the detection component 105 is referenced. Figure 3 As indicated by the black arrow, the rotation angle of the detection element 105 is increased to improve the testing accuracy of the hole parameter measuring device.

[0094] For example, in the cavity of the connector 101, the sealing member 102 is fixed to the inner wall of the cavity. A piston 103 and a movable connecting rod 104 are provided at the end of the cavity near the detection member 105. The first connecting rod segment of the movable connecting rod 104 is connected to the piston 103, and the third connecting rod segment of the movable connecting rod 104 is movably connected to the first end of the detection member 105. Under the pressure of the pressure regulating chamber, the piston 103 moves closer to or further away from the detection member 105, thereby causing the first, second, and third connecting rod segments of the movable connecting rod 104 to move sequentially closer to the detection member 105, thus changing the position of the detection end of the detection member 105. In this way, a lever structure is formed between the piston 103, the movable connecting rod 104, and the detection member 105. By controlling the position of the piston 103 in the cavity through the pressure regulating member, the position of the detection end of the detection member 105 can be controlled.

[0095] Understandably, the connecting member 101 has a movable opening on its end side wall near the detection member 105, and a portion of the third connecting rod section passes through this movable opening. This creates a lever structure between the piston 103, the movable connecting rod 104, and the detection member 105, increasing the rotation angle of the detection end of the detection member 105. By allowing the third connecting rod section to pass through the movable opening, the rotation angle range of the detection member 105 is increased, and damage to the cavity caused by the movement of the movable connecting rod 104 can be avoided.

[0096] For example, the extension directions of the first and second connecting rod segments are parallel to each other, and the extension directions of the first and third connecting rod segments intersect with the extension direction of the second connecting rod segment. In this way, the movable connecting rod 104 can be extended out of the cavity through the movable opening, and the rotation angle of the detection element 105 can be increased under the drive of the piston 103 and the movable connecting rod 104.

[0097] In some embodiments, to control the pressure of the pressure regulating chamber, the pressure regulating component adjusts the pressure of the pressure regulating chamber in real time to ensure that the detection element 105 abuts against the inner wall of the hole. The pressure regulating component can supply gas to the pressure regulating chamber. In this case, the working principle of the pressure regulating component is the same as that of a pneumatic transmission system, using compressed air as the working medium for transmission. The pressure regulating component includes an air compressor pump, an air tank, a control valve, and an air inlet pipe. The air inlet pipe is connected to the pressure regulating chamber, and the pressure of the pressure regulating chamber is controlled by the control valve.

[0098] For example, the position detection component can be a position sensor, which can be set on the blocking component 102. The position sensor can obtain the distance between the piston 103 and the position blocking component 102 in real time.

[0099] For example, the sealing element 102 can be a metal block.

[0100] As one feasible implementation, the second end of the detection element 105 is provided with a rolling element 106. The rolling element 106 is replaceable. By replacing the workpiece with a different ball diameter, different levels of roughness can be detected. That is to say, the smaller the ball diameter of the rolling element 106, the higher the accuracy and precision of the roughness that can be detected.

[0101] For example, during the operation of the hole parameter measuring device, the second end of the detection element 105 is always in contact with the inner wall of the hole. By setting a rolling element 106 at the second end of the detection element 105, the rolling element 106 rolls against the inner wall of the hole, which can reduce the frictional resistance between the detection element 105 and the inner wall of the hole. This has the advantages of high mechanical efficiency and easy start-up. It can also prevent the detection element 105 from damaging the inner wall of the hole during the testing process.

[0102] For example, the rolling element 106 can be a rolling steel column.

[0103] In some embodiments, when the ellipticity of a hole needs to be tested, the support leg 202 is fixed to the surface of the part 700 to be tested by the suction cup 203. The connecting member 101 is driven by the lifting drive 400 to move relative to the mounting plate 301 towards the hole. In this way, the lifting gear 401 of the lifting drive 400 drives the lifting rack 402 on the connecting member 101 to move, thereby moving the connecting member 101 towards the hole. When the testing member 105 extends into the preset position in the hole, the lifting drive 400 is turned off. At this time, the rotation drive 500 is started. The drive end of the rotation drive 500 drives the first rotation gear to rotate. The first rotation gear drives the second rotation gear meshing with it to rotate. At this time, through the rotating second rotation gear and bearing 600, the mounting plate 301 rotates relative to the support plate 201. The mounting plate 301 drives the connecting piece 101 connected to it to rotate. The detection end of the detection piece 105 connected to the connecting piece 101 rotates. At this time, the pressure regulating component controls the pressure of the pressure regulating chamber in real time to ensure that the piston 103 can push the movable connecting rod 104 to move closer to the detection piece 105 in real time, ensuring that the detection end of the detection piece 105 abuts against the inner wall of the hole. The position detection component detects the distance between the piston 103 and the sealing piece 102 in real time, and obtains the ellipticity information of the hole through analysis.

[0104] In other embodiments, when the depth and perpendicularity of a hole need to be tested, the support leg 202 is fixed to the surface of the part 700 to be tested by the suction cup 203. The connecting member 101 is driven by the lifting drive 400 to move relative to the mounting plate 301 towards the hole. In this way, the lifting gear 401 of the lifting drive 400 drives the lifting rack 402 on the connecting member 101 to move, thereby moving the connecting member 101 towards the hole. When the detection end of the detection member 105 is parallel to the surface of the part 700, the pressure regulating member controls the pressure of the pressure regulating chamber in real time to ensure that the piston 103 can push the movable connecting rod 104 towards the detection member 105 in real time, ensuring that the detection end of the detection member 105 abuts against the inner wall of the hole. The position detection member detects the distance between the piston 103 and the sealing member 102 in real time, and obtains information about the depth, perpendicularity, and ellipticity of the hole by analysis.

[0105] In the above description, it should be understood that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal connection of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. The terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "multiple" means two or more, unless otherwise precisely specified.

[0106] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0107] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A hole parameter measuring device, characterized in that, The device is used for measuring the parameters of holes to be tested on the surface of a part. The hole parameter measuring device includes a detection component, a mounting component, a lifting drive component, a rotating drive component, and a support component. The support component is used to abut against the surface of the part. The detection component is slidably connected to the mounting component, and the lifting drive component is connected to the detection component to drive the detection component to move up and down relative to the mounting component. The mounting component is rotatably connected to the support component, and the rotation drive is connected to the mounting component to drive the mounting component to rotate relative to the support component. The detection assembly includes a connector, a plugging component, a detection component, a piston, a pressure regulating component, and a position detection component. The connector has a cavity extending along its length. The plugging component and the piston are spaced apart within the cavity. A pressure regulating cavity is located between the piston and the plugging component, and the pressure regulating component communicates with the pressure regulating cavity. The piston is movably connected to the detection component, and the detection end of the detection component is located outside the cavity. The position detection element is disposed in the pressure regulating chamber and is used to measure the position of the piston; It also includes a movable connecting rod, through which the piston and the detection element are connected. The first end of the movable connecting rod is rotatably connected to the piston, and the second end of the movable connecting rod is rotatably connected to the detection element. The movable link includes a first link segment, a second link segment, and a third link segment connected in sequence. The extension directions of the first link segment and the third link segment are parallel to each other, and both are set at an angle to the second link segment. The connector has a movable opening on the end side wall near the detector, and part of the third connecting rod segment passes through the movable opening and is located outside the cavity; The first end of the detection component near the movable connecting rod is rotatably connected to the connecting component. It also includes a bearing, through which the mounting assembly is rotatably connected to the support assembly; The support assembly has a support opening, and the bearing and part of the mounting assembly are located within the support opening; the outer ring surface of the bearing is in close contact with the inner wall surface of the support opening, and the inner ring surface of the bearing is in close contact with part of the mounting assembly. The mounting assembly is provided with a mounting opening, the connector passes through the mounting opening, the driving end of the lifting drive is provided with a lifting gear, and the outer wall surface of the connector is provided with a lifting rack extending along the extension direction of the connector, the lifting gear and the lifting rack meshing.

2. The hole parameter measuring device according to claim 1, characterized in that, The second end of the detection element is provided with a rolling element.

3. The hole parameter measuring device according to claim 1, characterized in that, The mounting assembly includes a mounting plate and a mounting protrusion, and the mounting opening extends through the mounting plate and the mounting protrusion along the thickness direction of the mounting assembly; the mounting protrusion is located at the support opening; The outer peripheral wall of the mounting protrusion and the inner ring surface of the bearing are in close contact.

4. The hole parameter measuring device according to claim 1, characterized in that, The drive end of the rotating drive component is provided with a first rotating gear, and the support assembly is provided with a second rotating gear, wherein the first rotating gear and the second rotating gear mesh.

5. The hole parameter measuring device according to claim 4, characterized in that, The first rotating gear is a ring gear, which is located close to the support opening and surrounds the outer periphery of the support opening.

6. The hole parameter measuring device according to claim 1, characterized in that, The support assembly includes a support plate and at least three support legs, wherein the at least three support legs are circumferentially spaced from the support plate. The support opening is disposed on the support plate, and the support opening is located at the geometric center of the support plate.

7. The hole parameter measuring device according to claim 6, characterized in that, The first end of the support leg is connected to the support plate, and the second end of the support leg is provided with a suction cup; At least three of the support legs have equal extension lengths along the thickness direction of the support plate.

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