Non-contact type detection device compatible with both bar and cylinder

Abstract

The application discloses a kind of non-contact simultaneously compatible bar and cylinder detection device, including center processing system, inner cavity detection unit, outer wall detection unit, rotating support assembly and rack assembly;Rotating support assembly, inner cavity detection unit and outer wall detection unit are all set in rack assembly top;Center processing system is set in rack assembly;Inner cavity detection unit is used to collect the inner cavity data of measured object and is passed to center processing system;Outer wall detection unit is used to collect the outer wall data of measured object and is passed to center processing system;Center processing system is used to control inner cavity detection unit, outer wall detection unit and rotating support assembly and according to inner cavity data and / or outer cavity data calculate and analyze whether measured object satisfies processing requirement;The application can realize automatic detection, solve because artificial detection needs to invest a lot of manpower and material resources, detection precision and detection speed are difficult to meet the increasingly strict technical problem, applicable to detection under the condition of large quantities, multi-specification.

Description

A non-contact testing device that can simultaneously detect bar stock and cylinder stock Technical Field

[0001] This invention belongs to the field of quality inspection technology, specifically relating to a non-contact inspection device that can simultaneously inspect bars and cylinders. Background Technology

[0002] Bar stock and cylinders are widely used in various industries, primarily for filling, sealing, constructing pressure-bearing spaces, and withstanding certain pressures and temperatures. Their manufacturing quality plays a crucial role in the product's performance and even its normal function. Cylinders and bars come in various specifications and styles. For cylinders, it is necessary to inspect the machining of the internal cavity (such as internal threads) to ensure it meets requirements. If necessary, the external wall must also be inspected, such as whether the axial length and external thread machining meet requirements. For bars, the main requirement is to inspect the external wall, such as the side tapered holes, the bar's length and short diameters, external threads, and stepped shaft dimensions. If necessary, the internal cavity must also be inspected, such as the threads within axial blind holes.

[0003] Currently, bar stock is mainly inspected manually, while cylindrical parts are inspected in two ways: one is by manual inspection, and the other is by machine vision and image processing technology.

[0004] When using manual inspection, taking bar stock as an example, the inspection method involves using a V-block as a support, measuring the diameter of the bar stock with calipers, and measuring the inner tapered hole with a dial indicator. Multiple sets of tooling are required. If the bar stock lengths are inconsistent, the position of the V-block needs to be changed, resulting in a large workload. Furthermore, the contact-based inspection process may cause cosmetic damage to the product, leading to wear or injury and further affecting product accuracy. Moreover, the entire measurement process is done manually, which is highly susceptible to subjective influence and has significant errors, making it difficult to meet customer requirements. Similar situations exist when manually inspecting cylindrical products.

[0005] Currently, there are devices that use machine vision and image processing technology to inspect the inner cavity of cylinders. However, when it is necessary to inspect the outer wall of the cylinder and the bar stock, the existing automatic inspection devices cannot meet the requirements for compatible inspection. Summary of the Invention

[0006] In view of this, the present invention discloses a non-contact testing device that can simultaneously test bar stock and cylindrical parts, which can test bar stock and cylindrical parts in large batches, with high efficiency, high precision and full automation, enhance the safety of the testing process, improve the testing level, testing accuracy and production efficiency, significantly reduce the intensity of manual labor and reduce production costs.

[0007] This invention is achieved through the following technical solution:

[0008] A non-contact inspection device that can simultaneously inspect bar stock and cylinder stock includes a central processing system, an inner cavity inspection unit, an outer wall inspection unit, a rotating support assembly, and a frame assembly.

[0009] The rotating support assembly, the inner cavity detection unit, and the outer wall detection unit are all located on the top of the rack assembly; the central processing system is located inside the rack assembly.

[0010] The internal cavity detection unit is used to collect internal cavity data of the object under test and transmit it to the central processing system;

[0011] The outer wall detection unit is used to collect data on the outer wall of the object under test and transmit it to the central processing system;

[0012] The central processing system is used to control the internal cavity detection unit, the external wall detection unit, and the rotating support assembly, and to calculate and analyze whether the test object meets the processing requirements based on the internal cavity data and / or external cavity data.

[0013] The internal cavity detection unit includes internal cavity detection module I and internal cavity detection module II, which are arranged opposite to each other.

[0014] The object to be tested is located on the rotating support assembly and between the inner cavity detection module I and the inner cavity detection module II. The rotating support assembly is used to support the object to be tested and drive the object to be tested to rotate around its own axis.

[0015] The outer wall detection unit includes a light source emitting unit and a camera unit; the light source emitting unit and the camera unit are arranged opposite to each other, with the light source emitting unit located on one side of the object to be measured and the camera unit located on the other side of the object to be measured; the light source emitting unit and the camera unit can move synchronously along the axial direction of the object to be measured.

[0016] Furthermore, the cavity detection module I is fixedly connected to the frame assembly, and the position of the cavity detection module II relative to the cavity detection module I is adjustable to adjust the distance between the cavity detection module I and the cavity detection module II.

[0017] Furthermore, the rotating support assembly includes support wheel assembly A and support wheel assembly B;

[0018] Support wheel assembly A is fixedly mounted on the frame assembly, and support wheel assembly B is mounted on the inner cavity detection module II; support wheel assembly A and support wheel assembly B are opposite to each other;

[0019] One end of the object to be tested is placed on support wheel assembly A, and the other end is placed on support wheel assembly B.

[0020] Furthermore, the support wheel assembly A includes a support wheel frame I, two active support wheels, and a motor III; the two active support wheels are arranged side by side on the support wheel frame I and can rotate relative to the support wheel frame I; a V-groove is formed between the two active support wheels for supporting one end of the object to be measured; the main body of the motor III is fixedly mounted on the support wheel frame I, and the output end of the motor III is connected to the two active support wheels through a transmission component. The motor III drives the two active support wheels to rotate synchronously according to the control of the central processing system.

[0021] The support wheel assembly B includes a support wheel frame II and two driven support wheels. The two driven support wheels are arranged side by side on the support wheel frame II and can rotate relative to the support wheel frame II. A V-groove is formed between the two driven support wheels to support the other end of the object to be measured.

[0022] Under the influence of friction between the active support wheel and the object under test, as well as the gravity of the object under test, the rotation of the active support wheel can drive the object under test to rotate, and the driven support wheel of support wheel assembly B will rotate accordingly.

[0023] Furthermore, the support wheel assembly B also includes a fine-tuning slide. The support wheel frame II is connected to the fine-tuning slide. By adjusting the fine-tuning slide, the height of the support wheel frame II can be adjusted to make the object to be measured horizontal.

[0024] Furthermore, the outer wall detection unit also includes a drive module for driving the light source emitting unit and the camera unit to move along the axis of the object under test;

[0025] The drive module includes: a U-shaped bracket, a lead screw drive motor, a lead screw, and a lead screw nut;

[0026] The lead screw is located at the bottom of the top plate of the frame assembly, and its axis is parallel to the axis of the object to be measured. Both ends of the lead screw are rotatably connected to the top plate of the frame. The lead screw drive motor is fixedly installed at the bottom of the top plate of the frame. The output end of the lead screw drive motor is connected to the lead screw through a transmission component. The lead screw drive motor drives the lead screw to rotate according to the control of the central processing system. The lead screw nut is sleeved on the lead screw. When the lead screw rotates, the lead screw nut can move linearly along the axis of the lead screw.

[0027] The U-shaped support includes a horizontally arranged base plate and two vertical support brackets arranged at both ends of the base plate; the top plate of the frame is provided with two elongated holes whose length is along the axis of the object to be measured.

[0028] A horizontal plate is installed after the top of each support bracket passes through the elongated hole on the corresponding side. The light source emitting unit is mounted on one horizontal plate by a fixed bracket, and the camera unit is mounted on another horizontal plate by another fixed bracket. The base plate is located at the bottom of the top plate of the frame and is fixedly connected to the lead screw nut by a connecting block.

[0029] Furthermore, both the cavity detection module I and the cavity detection module II include a moving module, a bracket, a spectral confocal sensor, a connecting sleeve, a reflector, and a driving assembly;

[0030] The movable module is mounted on the frame assembly, and the support is slidably mounted on the movable module. The spectral confocal sensor is mounted on the support and can rotate relative to the support. The reflector is coaxially connected to the spectral confocal sensor via a connecting sleeve. A probe is provided at the front end of the spectral confocal sensor, and the reflector is positioned opposite the probe. The probe can emit a light beam, and the reflector can extend into the inner cavity of the object to be measured and reflect the light beam onto the inner wall of the object. The drive assembly is mounted on the support and connected to the spectral confocal sensor. The drive assembly is used to drive the spectral confocal sensor to rotate along the axis according to the control of the central processing system.

[0031] Furthermore, the movable module of the internal cavity detection module II is the movable module II; the sliding of the bracket of the internal cavity detection module II on the movable module II causes the corresponding reflector to move along the axis of the object to be measured;

[0032] The mobile module II includes a base and a drive slide rail II and a driven slide rail II arranged parallel to each other on the base;

[0033] The frame assembly is equipped with an adjustment rail, and the base is connected to the adjustment rail. The base can move along the length of the adjustment rail and be fixed at any position, thereby realizing the position adjustment of the inner cavity detection module II.

[0034] The bracket of the internal cavity detection module II is connected to the drive slide rail II and the driven slide rail II respectively through two sliders. The drive slide rail II is also equipped with a linear drive unit II, which drives the corresponding bracket to slide along the drive slide rail II and the driven slide rail II.

[0035] Furthermore, both the inner cavity detection module I and the inner cavity detection module II are equipped with magnetic rulers for measuring the axial movement distance of the corresponding reflectors;

[0036] In the central processing system, the data reception volume or data reception interval of the cavity detection module I and the cavity detection module II can be set respectively, and the corresponding interval distance can be calculated according to the corresponding data reception volume or data reception interval. The interval distance is the axial movement distance of the corresponding reflector during each data reception.

[0037] Whenever the magnetic ruler measures the movement of the corresponding reflector by the corresponding interval distance, the central processing system receives the cavity data collected by the corresponding spectral confocal sensor.

[0038] Furthermore, a push plate is provided on the inner cavity detection module I, and a baffle is provided on the inner cavity detection module II, with a limit bearing provided on the top of the baffle;

[0039] At the start of the test, the push plate can push the object to be tested until it abuts against the outer ring of the upper limit bearing of the baffle, which is used to position the object to be tested in its initial position.

[0040] During testing, the push plate moves away from the object to be tested, and the outer ring of the limit bearing contacts the end of the object to be tested.

[0041] Beneficial effects:

[0042] (1) The inner cavity detection unit and outer wall detection unit of the present invention can be compatible with non-contact acquisition of outer wall data and inner cavity data of bar stock and cylinder, and the central processing system can control the inner cavity detection unit, outer wall detection unit and rotating support assembly, which can realize automated detection, solve the problem that manual detection requires a lot of manpower and material resources, and the detection accuracy and detection speed are difficult to meet the increasingly stringent technical problems, and are suitable for detection in large batches and multiple specifications.

[0043] (2) The position of the inner cavity detection module II of the present invention is adjustable. By adjusting the position of the inner cavity detection module II, the distance between the inner cavity detection module I and the inner cavity detection module II can be adjusted, thereby adapting to non-contact detection of bars and cylinders of different lengths.

[0044] (3) By setting up support wheel assembly A and support wheel assembly B, the present invention can not only achieve stable support for the object under test, but also drive the rotation of the object under test.

[0045] (4) The support wheel assembly B of the present invention also includes a fine adjustment slide. By adjusting the fine adjustment slide, the height of the support wheel frame II can be adjusted so that the object to be tested is horizontal, thereby making the detection device suitable for non-contact detection of bars and cylinders with different diameters at both ends.

[0046] (5) Both the inner cavity detection module I and the inner cavity detection module II of the present invention are equipped with magnetic scales. By setting the magnetic scales, data can be collected accurately according to the set data receiving interval or data receiving amount, which facilitates the high-precision detection of bars and cylinders.

[0047] (6) The push plate and baffle of the present invention can position the object to be tested, and can also position the initial positions of the inner cavity detection module I and the inner cavity detection module II. Moreover, the upper limit bearing of the baffle can limit the axial movement of the object to be tested, and can also reduce the friction between the object and the object to be tested. Attached Figure Description

[0048] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0049] Figure 2 is a schematic diagram of the outer wall detection unit structure of the present invention;

[0050] Figure 3 is a schematic diagram of the rotating support assembly and the inner cavity detection module II of the present invention;

[0051] Figure 4 is a schematic diagram of the internal cavity detection module I of the present invention;

[0052] Figure 5 is a schematic diagram of the internal cavity detection module I of the present invention;

[0053] Wherein, 1-the object to be tested, 100-inner cavity detection module I, 200-inner cavity detection module II, 300-outer wall detection unit, 400-frame assembly;

[0054] 101-Drive slide rail I, 102-Spectral confocal sensor, 103-Connecting sleeve, 104-Protective cover I, 105-Protective cover II, 106-Reflector, 107-Connecting rod, 108-Driven synchronous pulley, 109-Driven synchronous pulley, 110-Push plate, 111-Motor I, 112-Bracket, 113-Motor II, 114-Support wheel assembly A, 115-Motor III, 116-Driven slide rail I;

[0055] 201-Support wheel assembly B, 202-Fine adjustment slide, 203-Base, 204-Scale holder II, 206-Magnetic head bracket II, 207-Baffle, 208-Limit bearing.

[0056] 301-Top plate of the frame, 302-Fixed bracket, 303-Light source emitting unit, 304-Camera unit, 305-Screw drive motor, 306-Motor frame, 307-Screw support seat, 308-Screw, 309-Screw nut, 311-Connecting block, 312-Slider, 313-Base plate, 314-Lifting bracket. Detailed Implementation

[0057] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0058] As shown in Figure 1, this embodiment provides a non-contact detection device that can simultaneously detect bar stock and cylinder stock, including a central processing system, an inner cavity detection unit, an outer wall detection unit 300, a rotating support assembly, and a frame assembly 400.

[0059] The rotating support assembly, the inner cavity detection unit, and the outer wall detection unit 300 are all located on the top of the rack assembly 400; the central processing system is located inside the rack assembly 400.

[0060] The internal cavity detection unit is used to collect internal cavity data of the test object 1 and transmit it to the central processing system. The internal cavity data includes: total internal cavity length, internal diameter, internal runout, internal thread dimensions (major diameter, minor diameter, pitch diameter, pitch, tooth height, intercept, length), internal cavity roundness, hole depth, step distance, and hole dimensions (depth, taper, internal diameter).

[0061] The outer wall detection unit is used to collect the outer wall data of the object under test 1 and transmit it to the central processing system; the outer wall data includes the total length of the outer wall, outer diameter, outer circular runout, external thread size (major diameter, minor diameter, pitch diameter, pitch, tooth height, intercept, length), outer wall roundness, step distance, and hole size (depth, taper, inner diameter);

[0062] The central processing system is used to control the inner cavity detection unit, the outer wall detection unit, and the rotating support assembly, and to calculate and analyze whether the test object 1 meets the processing requirements based on the inner cavity data and / or the outer wall data.

[0063] The internal cavity detection unit includes an internal cavity detection module I 100 and an internal cavity detection module II 200, which are arranged opposite to each other. The object to be tested 1 is located on a rotating support assembly and between the internal cavity detection module I 100 and the internal cavity detection module II 200. The rotating support assembly is used to support the object to be tested 1 and drive the object to be tested 1 to rotate around its own axis. The internal cavity detection module I 100 is fixedly connected to the frame assembly 400. The position of the internal cavity detection module II 200 relative to the internal cavity detection module I 100 is adjustable to adjust the distance between the internal cavity detection module I 100 and the internal cavity detection module II 200 to accommodate objects to be tested 1 of different lengths.

[0064] This embodiment provides a non-contact testing device that can simultaneously detect bar stock and cylindrical parts. It can perform non-contact testing of both bar stock and cylindrical parts, solving the problem that manual testing requires a large investment of manpower and resources, and that the detection accuracy and speed are difficult to meet increasingly stringent technical requirements. It can meet the testing needs of large batches and multiple specifications.

[0065] Referring to Figure 2, the outer wall detection unit 300 includes a light source emitting unit 303 and a camera unit 304. The light source emitting unit 303 and the camera unit 304 are arranged opposite to each other, with the light source emitting unit 303 located on one lateral side of the object under test 1 and the camera unit 304 located on the other lateral side of the object under test 1. The light source emitting unit 303 and the camera unit 304 can move synchronously along the axial direction of the object under test 1. Combined with the rotation support assembly driving the rotation of the object under test 1, the outer wall data of the object under test 1 can be acquired through imaging by the camera unit 304. In a specific embodiment, the light source emitting unit 303 includes one or more light sources, which are arranged vertically side by side; the camera unit 304 includes one or more cameras, which are arranged vertically side by side; and the light sources and cameras are one-to-one opposite each other. As the number of light sources and the number of cameras increases, the range of outer contour dimensions of bars and cylinders that the outer wall detection unit can detect also increases.

[0066] Furthermore, the outer wall detection unit 300 also includes a drive module for driving the light source emitting unit 303 and the camera unit 304 to move along the axial direction of the object under test 1;

[0067] The drive module includes: a U-shaped bracket, a lead screw drive motor 305, a lead screw 308, and a lead screw nut 309;

[0068] The lead screw 308 is located at the bottom of the top plate 301 of the frame assembly, and the axis of the lead screw 308 is parallel to the axis of the object to be measured 1. Both ends of the lead screw 308 are supported on the top plate 301 of the frame by lead screw support seats 307. The lead screw drive motor 305 is fixedly mounted at the bottom of the top plate 301 of the frame by a motor frame 306. The output end of the lead screw drive motor 305 is connected to the lead screw 308 through a transmission component. The lead screw drive motor 305 drives the lead screw 308 to rotate according to the control of the central processing system. The lead screw nut 309 is sleeved on the lead screw 308. When the lead screw 308 rotates, the lead screw nut 309 can move linearly along the axis of the lead screw 308. The transmission component can be a coupling, a gear, or a pulley.

[0069] The U-shaped support includes a horizontally arranged base plate 313 and two vertical support brackets arranged at both ends of the base plate 313. The top plate 301 of the frame is provided with two elongated holes with a length along the axis of the object to be measured 1. The top of each support bracket passes through the elongated hole on the corresponding side and then a horizontal plate is set thereafter. Alternatively, the two ends of the base plate 313 extend out of the top plate 301 of the frame, and the two support brackets extend upward from the outer side of the corresponding side of the top plate 301 of the frame and then a horizontal plate is set thereafter.

[0070] The light source emitting unit 303 is mounted on a horizontal plate on one side via a fixed bracket 302, and the camera unit 304 is mounted on a horizontal plate on the other side via another fixed bracket 302; the base plate 313 is located at the bottom of the top plate 301 of the frame and is fixedly connected to the lead screw nut 309 via a connecting block 301; thus, the U-shaped bracket can move along the length direction of the lead screw 308, thereby driving the light source emitting unit 303 and the camera unit 304 to move synchronously along the axial direction of the object to be measured 1.

[0071] Furthermore, the drive module also includes two slide rails and two sliders 312. The two slide rails are arranged parallel to each other on the bottom surface of the top plate 301 of the frame, and the length direction of each slide rail is parallel to the lead screw 308. The two sliders 312 are slidably arranged on the slide rails one-to-one, and both sliders 312 are fixedly connected to the base plate 313. The arrangement of the slide rails and sliders 312 further ensures the stability of the movement of the U-shaped bracket.

[0072] Referring to Figure 3, the rotating support assembly includes a support wheel assembly A114 and a support wheel assembly B201. The support wheel assembly A114 is fixedly mounted on the frame assembly 400, and the support wheel assembly B201 is mounted on the inner cavity detection module II 200. The support wheel assembly A114 and the support wheel assembly B201 are opposite to each other. One end of the object to be tested 1 is placed on the support wheel assembly A114, and the other end is placed on the support wheel assembly B201.

[0073] The support wheel assembly A114 includes a support wheel frame I, two active support wheels, and a motor III115. The two active support wheels are arranged side by side on the support wheel frame I and can rotate relative to the support wheel frame I. A V-groove is formed between the two active support wheels to support one end of the object to be measured 1. The main body of the motor III115 is fixedly mounted on the support wheel frame I. The output end of the motor III115 is connected to the two active support wheels through a transmission component. The motor III115 drives the two active support wheels to rotate synchronously according to the control of the central processing system.

[0074] The support wheel assembly B201 includes a support wheel frame II and two driven support wheels. The two driven support wheels are arranged side by side on the support wheel frame II and can rotate relative to the support wheel frame II. A V-shaped groove is formed between the two driven support wheels to support the other end of the object to be tested 1. Under the action of friction between the active support wheel and the object to be tested 1 and the gravity of the object to be tested 1, the rotation of the active support wheel can drive the object to be tested 1 to rotate, and the driven support wheels of the support wheel assembly B201 will rotate accordingly.

[0075] Furthermore, the support wheel assembly B201 also includes a fine-tuning slide 202. The support wheel frame II is connected to the fine-tuning slide 202. By adjusting the fine-tuning slide 202, the height of the support wheel frame II can be adjusted so that the object to be tested 1 is horizontal, thereby making the detection device applicable to the object to be tested 1 with different outer diameters at both ends.

[0076] Referring to Figures 3-5, both the cavity detection module I 100 and the cavity detection module II 200 include a moving module, a bracket 112, a spectral confocal sensor 102, a connecting sleeve 103, a reflector 106, and a driving assembly.

[0077] A movable module is mounted on a frame assembly 400, a bracket 112 is slidably mounted on the movable module, and a spectral confocal sensor 102 is mounted on the bracket 112 and can rotate relative to the bracket 112. A reflector 106 is coaxially connected to the spectral confocal sensor 102 via a connecting sleeve 103. A probe is provided at the front end of the spectral confocal sensor 102, and the position of the reflector 106 is opposite to the probe. The probe can emit a light beam, and the reflector 106 can extend into the inner cavity of the object under test 1 and reflect the light beam onto the inner wall of the object under test 1. After reflection by the inner wall of the object under test 1, the light beam returns to the spectral confocal sensor 102 along the original optical path. A drive assembly is mounted on the bracket 112 and connected to the spectral confocal sensor 102. The drive assembly is used to drive the spectral confocal sensor 102 to rotate along the axis according to the control of the central processing system, thereby realizing the acquisition of inner cavity data on the circumference.

[0078] Furthermore, the drive assembly includes a motor II 113, a driven synchronous pulley 108, a driving synchronous pulley 109, a connecting rod 107, and a belt;

[0079] The main body of motor II 113 is fixedly mounted on bracket 112. The drive shaft of motor II 113 passes through bracket 112 and is coaxially fixedly connected to the active synchronous pulley 109. The spectral confocal sensor 102 is coaxially fixedly connected to the connecting sleeve 103. One end of the connecting rod 107 is coaxially fixedly connected to the tail of the connecting sleeve 103, and the other end of the connecting rod 107 passes through bracket 112 and is rotatably engaged with bracket 112. The tail wire of the spectral confocal sensor 102 passes through the connecting rod 107 and is connected to the outside. The driven synchronous pulley 108 is coaxially sleeved in the middle of the connecting rod 107, and the driven synchronous pulley 108 and the active synchronous pulley 109 are located on the same side of bracket 112. A belt is simultaneously wound around both the driven synchronous pulley 108 and the driving synchronous pulley 109. The output of motor II 113 rotates the driving synchronous pulley 109 synchronously. Under the action of the belt, the driving synchronous pulley 109 drives the driven synchronous pulley 108 to rotate, thereby driving the connecting rod 107, connecting sleeve 103, and spectral confocal sensor 102 to rotate synchronously, achieving the rotation of the spectral confocal sensor 102 relative to the bracket 112. The drive assembly does not use a motor directly coaxially connected to the connecting rod 107; instead, it uses the driven synchronous pulley 108, the driving synchronous pulley 109, and a belt, leaving space for the electrical connection of the wiring at the tail of the spectral confocal sensor 102. Specifically, the rotation of motor II 113 is controlled by the central processing system; the tail end of the connecting sleeve 103 and the front end of the connecting rod 107 are fixedly connected by a bolted flange.

[0080] In one embodiment, a protective cover II 105 is provided on one side of the bracket 112 to protect the tail wiring of the motor II 113 and the spectral confocal sensor 102; a protective cover I 104 is provided on the other side of the bracket 112 to protect the driven synchronous pulley 108, the driving synchronous pulley 109 and the belt, and the provision of protective covers I 104 and protective covers II 105 can also make the device look simple and beautiful.

[0081] In one embodiment, the movable module of the cavity detection module I 100 is the movable module I. The sliding of the bracket 112 of the cavity detection module I 100 on the movable module I causes the corresponding reflector 106 to move along the axial direction of the object to be tested 1, so as to realize the acquisition of cavity data at one end of the axial direction of the object to be tested 1.

[0082] The mobile module I includes a drive slide rail I101 and a driven slide rail I116 arranged in parallel; the corresponding bracket 112 is connected to the drive slide rail I101 and the driven slide rail I116 respectively through two sliders. A linear drive unit is also provided on the drive slide rail I101, and the linear drive unit drives the bracket 112 to slide along the drive slide rail I101 and the driven slide rail I116.

[0083] In one embodiment, the linear drive unit may include a motor I111 and a lead screw assembly. The motor I111 is connected to the tail end of the drive slide rail I101, and the output end of the motor I111 is connected to the corresponding bracket 112 through the lead screw assembly. The rotation of the drive motor I111 is controlled by the central processing system, which can drive the bracket 112 to slide along the drive slide rail I101 and the driven slide rail I116.

[0084] In one embodiment, the movable module of the cavity detection module II 200 is the movable module II; the sliding of the bracket 112 of the cavity detection module II 200 on the movable module II causes the corresponding reflector 106 to move along the axis of the object to be tested 1, thereby realizing the acquisition of cavity data at the other end of the axis of the object to be tested.

[0085] The mobile module II includes a base 203 and a drive slide rail II and a driven slide rail II arranged parallel to the base;

[0086] The frame assembly 400 is provided with an adjustment rail, and the base 203 is connected to the adjustment rail. The base 203 can move along the length of the adjustment rail and be fixed at any position (such as snap-fit ​​or concave-convex fit connection), thereby realizing the position adjustment of the inner cavity detection module II 200; the support wheel assembly B201 is provided on the base 203 and is located at the front end of the bracket 112.

[0087] The bracket 112 of the internal cavity detection module II 200 is connected to the drive slide rail II and the driven slide rail II respectively through two sliders. The drive slide rail II is also equipped with a linear drive unit II, which drives the corresponding bracket 112 to slide along the drive slide rail II and the driven slide rail II.

[0088] In one embodiment, the linear drive unit II may include a motor IV and a lead screw assembly. The motor IV is connected to the tail end of the drive slide rail II, and the output end of the motor IV is connected to the corresponding bracket 112 through the lead screw assembly. The rotation of the drive motor IV is controlled by the central processing system, which can drive the corresponding bracket 112 to slide along the drive slide rail II and the driven slide rail II.

[0089] Furthermore, both the inner cavity detection module I 100 and the inner cavity detection module II 200 are equipped with magnetic rulers for measuring the axial movement distance of the corresponding reflector 106;

[0090] In the central processing system, the data reception volume or data reception interval of the cavity detection module I100 and the cavity detection module II200 can be set respectively, and the corresponding interval distance can be calculated according to the corresponding data reception volume or data reception interval. The interval distance is the axial movement distance of the corresponding reflector 106 each time data is received.

[0091] Whenever the magnetic ruler measures the movement of the corresponding reflector 106 by the corresponding interval distance, the central processing system receives the cavity data collected by the corresponding spectral confocal sensor 102;

[0092] Furthermore, the magnetic scale of the internal cavity detection module I 100 includes a scale base I and a magnetic head I; the scale base I is fixedly mounted on the frame assembly, and the magnetic head I is fixed relative to the bracket 112 of the internal cavity detection module I 100; the magnetic head I can slide relative to the length direction of the scale base I, thereby realizing the acquisition of the axial movement distance of the corresponding reflector 106.

[0093] The magnetic scale of the internal cavity detection module II 200 includes a scale base II 204 and a magnetic head II; the scale base II 204 is fixedly mounted on the base 203, and the magnetic head II is fixed relative to the corresponding bracket 112; the magnetic head II can slide relative to the length direction of the scale base II 204, thereby realizing the acquisition of the axial movement distance of the reflector 106.

[0094] Furthermore, a magnetic head support I is provided on the ruler I, which can slide along the length direction of the ruler I, and the magnetic head I is fixedly mounted on the magnetic head support I;

[0095] The ruler base II 204 is provided with a magnetic head support II 206 that can slide along the length direction of the ruler base II 204, and the magnetic head II is fixedly mounted on the magnetic head support II 206.

[0096] In one embodiment, referring to Figures 3 and 4, the inner cavity detection module I 100 is provided with a push plate 110, and the inner cavity detection module II 200 is provided with a baffle 207. A limit bearing 208 is provided on the top of the baffle 207. When the detection starts, the push plate 110 pushes the object to be tested 1 to abut against the outer ring of the upper limit bearing 208 of the baffle 207 to position the object to be tested 1 at its initial position. During the detection, the push plate 110 moves away from the object to be tested 1, and the outer ring of the limit bearing 208 slides and rubs against the end of the object to be tested 1. The purpose of the limit bearing 208 is to prevent the object to be tested 1 from moving towards the baffle 207 while also reducing friction to ensure that the object to be tested 1 can rotate smoothly along its own axis.

[0097] It should be noted that when the test object 1 rotates around itself, it may experience axial movement. However, the oblique cutting marks on the outer wall of the test object 1 only cause the test object 1 to move in one axial direction. Therefore, a limit bearing is only set at the baffle 207. When placing the test object 1, the direction of movement of the test object 1 can be predicted in advance or obtained experimentally. If this direction is aligned with the limit bearing, axial movement of the test object 1 during the testing process can be avoided.

[0098] Furthermore, the push plate 110 is fixedly mounted on the bracket 112 of the inner cavity detection module I 100 and is located on one side of the connecting sleeve 103; the push plate 110 does not extend axially beyond the end of the reflector 106 of the connecting sleeve 103, so that the corresponding reflector 106 can extend into the inner cavity of the object to be tested 1; the baffle 207 is fixedly mounted on the base 203 of the inner cavity detection module II 200.

[0099] Working principle:

[0100] The position of the inner cavity detection module II 200 on the frame assembly is manually adjusted according to the axial length of the object to be tested 1; the object to be tested 1 is placed on the support wheel assembly A114 and the support wheel assembly B201; the fine adjustment slide 202 of the support wheel assembly B201 is manually adjusted, thereby adjusting the height of the driven support wheel of the support wheel assembly B201 so that the object to be tested 1 is horizontal; the inner cavity detection module I 100 is controlled by the central processing system to move towards the object to be tested 1, so that the push plate 110 abuts against one end of the object to be tested 1, and then the object to be tested 1 is pushed further so that the other end of the object to be tested abuts against the limit bearing 208 on the support wheel assembly B. At this time, the positions of the inner cavity detection module I 100 and the inner cavity detection module II 200 are the initial positions, and the reflector 106 of the inner cavity detection module I 100 is located in the inner cavity of the object to be tested 1;

[0101] The initial position of the outer wall detection unit is: the light source emitting unit 303 and the camera unit 304 are located at one end of the object to be tested 1;

[0102] When it is necessary to inspect the outer wall of the object to be tested 1, the central processing system controls the lead screw drive motor of the outer wall detection unit to rotate, thereby controlling the light source emitting unit 303 and the camera unit to move along the axial direction of the object to be tested 1; the central processing system controls the motor Ⅲ115 of the rotating support assembly to rotate, and under the friction of the two active support wheels and the support of the two driven support wheels, the object to be tested 1 rotates relative to the light source emitting unit 303 and the camera unit, and the acquisition of all outer wall data on the outer wall surface of the object to be tested 1 is realized based on the imaging of the camera unit;

[0103] When it is necessary to detect the inner cavity of the object to be tested 1, the central processing system controls the support 112 to move slightly away from the object to be tested 1, so that the push plate 110 moves away from the object to be tested 1, preventing interference with the rotation of the object to be tested 1; the central processing system controls the motor I111 of the inner cavity detection module I100 and the motor IV of the inner cavity detection module II200 to rotate respectively, so that the motor I111 of the inner cavity detection module I100 and the two reflectors 106 of the inner cavity detection module II200 enter or move out of the inner cavity of the object to be tested 1 from both ends of the object to be tested 1 in a direction parallel to the axis of the object to be tested 1;

[0104] The central processing system controls the rotation of motor II113 of the inner cavity detection module I100 and motor IV of the inner cavity detection module II200, causing the reflector 106 and the spectral confocal sensor 102 to rotate. The light beam emitted by the spectral confocal sensor 102 is reflected by the reflector 106 onto the inner wall of the object under test 1. After reflection from the inner wall of the object under test 1, it returns to the spectral confocal sensor 102 along the original light path, thus realizing the acquisition of all inner cavity data on the inner cavity of the object under test 1.

[0105] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A non-contact testing device compatible with both bar and cylinder inspection, characterized in that, The system includes a central processing system, an inner cavity detection unit, an outer wall detection unit (300), a rotating support assembly, and a frame assembly (400). The rotating support assembly, inner cavity detection unit, and outer wall detection unit (300) are all located on top of the frame assembly (400). The central processing system is located inside the frame assembly (400). The inner cavity detection unit is used to collect inner cavity data of the test object (1) and transmit it to the central processing system. The outer wall detection unit (300) is used to collect outer wall data of the test object (1) and transmit it to the central processing system. The central processing system is used to control the inner cavity detection unit, the outer wall detection unit, and the outer wall detection unit. The measuring unit (300) and the rotating support assembly are used to calculate and analyze whether the test object (1) meets the processing requirements based on the internal cavity data and / or external wall data; the internal cavity detection unit includes internal cavity detection module I (100) and internal cavity detection module II (200), which are arranged opposite to each other; the test object (1) is located on the rotating support assembly and between the internal cavity detection module I (100) and the internal cavity detection module II (200), and the rotating support assembly is used to support the test object (1) and drive the test object (1) to rotate around its own axis; Both the internal cavity detection module I (100) and the internal cavity detection module II (200) include a moving module, a bracket (112), a spectral confocal sensor (102), a connecting sleeve (103), a reflector (106), and a drive assembly. The moving module is mounted on the frame assembly (400), the bracket (112) is slidably mounted on the moving module, and the spectral confocal sensor (102) is mounted on the bracket (112) and can rotate relative to the bracket (112). The reflector (106) is connected to the spectral confocal sensor (102) via the connecting sleeve (103). The coaxial connection is provided with a probe at the front end of the spectral confocal sensor (102), and the position of the reflector (106) is opposite to the probe. The probe can emit a light beam, and the reflector (106) can extend into the inner cavity of the object to be measured (1) and reflect the light beam onto the inner wall of the object to be measured (1). The driving component is set on the bracket (112) and connected to the spectral confocal sensor (102). The driving component is used to drive the spectral confocal sensor (102) to rotate along the axis according to the control of the central processing system. The moving module of the inner cavity detection module II (200) is the moving module II. The bracket (112) of the cavity detection module II (200) slides on the moving module II, causing the corresponding reflector (106) to move along the axial direction of the object to be tested (1); the moving module II includes a base (203) and a drive slide rail II and a driven slide rail II arranged parallel to the base (203); an adjustment rail is provided on the frame assembly (400), and the base (203) is connected to the adjustment rail. The base (203) can move along the length direction of the adjustment rail and be fixed at any position, thereby realizing the position adjustment of the cavity detection module II (200); the bracket (112) of the cavity detection module II (200) is connected to the drive slide rail II and the driven slide rail II respectively through two sliders (312). The drive slide rail II is also provided with a linear drive single The linear drive unit II drives the corresponding bracket (112) to slide along the drive slide rail II and the driven slide rail II; the outer wall detection unit (300) includes a light source emitting unit (303) and a camera unit (304); the light source emitting unit (303) and the camera unit (304) are arranged opposite to each other, with the light source emitting unit (303) located on one side of the object to be measured (1) and the camera unit (304) located on the other side of the object to be measured (1); the light source emitting unit (303) and the camera unit (304) can move synchronously along the axial direction of the object to be measured (1); the outer wall detection unit (300) also includes a drive module for driving the light source emitting unit (303) and the camera unit (304) to move along the axial direction of the object to be measured (1); the drive module includes Includes: a U-shaped bracket, a lead screw drive motor (305), a lead screw (308), and a lead screw nut (309); the lead screw (308) is located at the bottom of the top plate (301) of the frame assembly (400), and the axis of the lead screw (308) is parallel to the axis of the object to be measured (1); both ends of the lead screw (308) are rotatably connected to the top plate (301) of the frame, the lead screw drive motor (305) is fixedly installed at the bottom of the top plate (301), the output end of the lead screw drive motor (305) is connected to the lead screw (308) through a transmission component, the lead screw drive motor (305) drives the lead screw (308) to rotate according to the control of the central processing system, and the lead screw nut (309) is sleeved on the lead screw (308); when the lead screw (308) rotates, the lead screw nut... The mother (309) can move linearly along the axis of the lead screw (308); the U-shaped bracket includes a horizontally set base plate (313) and two vertical lifting brackets (314) set at both ends of the horizontal direction of the base plate (313); the top plate (301) of the frame is provided with two elongated holes with a length along the axis of the object to be measured (1); the top of each lifting bracket (314) passes through the elongated hole on the corresponding side and is set with a horizontal plate, the light source emitting unit (303) is set on a horizontal plate through a fixed bracket (302), and the camera unit (304) is set on another horizontal plate through another fixed bracket (302); the base plate (313) is located at the bottom of the top plate (301) of the frame and is fixedly connected to the lead screw nut (309) through a connecting block (311).

2. The non-contact testing device for both bar and cylinder components as described in claim 1, characterized in that, The cavity detection module I (100) is fixedly connected to the frame assembly (400), and the position of the cavity detection module II (200) relative to the cavity detection module I (100) is adjustable to adjust the distance between the cavity detection module I (100) and the cavity detection module II (200).

3. The non-contact testing device for both bar and cylinder components as described in claim 2, characterized in that, The rotating support assembly includes support wheel assembly A (114) and support wheel assembly B (201); support wheel assembly A (114) is fixedly mounted on the frame assembly (400), and support wheel assembly B (201) is mounted on the inner cavity detection module II (200); support wheel assembly A (114) and support wheel assembly B (201) are opposite to each other; one end of the object to be tested (1) is placed on support wheel assembly A (114), and the other end is placed on support wheel assembly B (201).

4. The non-contact testing device for both bar and cylinder components as described in claim 3, characterized in that, Support wheel assembly A (114) includes support wheel frame I, two active support wheels and motor III (115); the two active support wheels are arranged side by side on support wheel frame I and can rotate relative to support wheel frame I; a V-groove is formed between the two active support wheels for supporting one end of the object to be tested (1); the main body of motor III (115) is fixedly arranged on support wheel frame I, and the output end of motor III (115) is connected to the two active support wheels through a transmission component. Motor III (115) drives the two active support wheels to rotate synchronously according to the control of the central processing system; support wheel assembly B (201) includes support wheel frame II and two driven support wheels, the two driven support wheels are arranged side by side on support wheel frame II and can rotate relative to support wheel frame II; A V-groove is formed between the two driven support wheels to support the other end of the test object (1). Under the action of friction between the active support wheel and the test object (1) and the gravity of the test object (1), the rotation of the active support wheel can drive the test object (1) to rotate, and the driven support wheel of the support wheel assembly B (201) will rotate accordingly.

5. The non-contact testing device for both bar and cylinder components as described in claim 4, characterized in that, The support wheel assembly B (201) also includes a fine adjustment slide (202). The support wheel frame II is connected to the fine adjustment slide (202). By adjusting the fine adjustment slide (202), the height of the support wheel frame II can be adjusted so that the object to be measured (1) is horizontal.

6. The non-contact testing device for both bar and cylinder components as described in claim 1, characterized in that, Both the inner cavity detection module I (100) and the inner cavity detection module II (200) are equipped with magnetic rulers for measuring the axial movement distance of the corresponding reflector (106). The data receiving quantity or data receiving interval of the inner cavity detection module I (100) and the inner cavity detection module II (200) can be set respectively in the central processing system, and the corresponding interval distance can be calculated according to the corresponding data receiving quantity or data receiving interval. The interval distance is the axial movement distance of the corresponding reflector (106) each time data is received. Whenever the magnetic ruler measures the movement of the corresponding reflector (106) by the corresponding interval distance, the central processing system receives the inner cavity data collected by the corresponding spectral confocal sensor (102).

7. A non-contact testing device compatible with both bar and cylinder materials as described in any one of claims 1-5, characterized in that, A push plate (110) is provided on the inner cavity detection module I (100), and a baffle (207) is provided on the inner cavity detection module II (200). A limit bearing (208) is provided on the top of the baffle (207). When the detection starts, the push plate (110) can push the object to be tested (1) to abut against the outer ring of the upper limit bearing (208) of the baffle (207) to position the object to be tested (1) at its initial position. When the detection is performed, the push plate (110) moves away from the object to be tested (1), and the outer ring of the limit bearing (208) contacts the end of the object to be tested (1).

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