A large part machining error rapid detection system

Abstract

The application discloses a large part machining error fast detection system, which comprises a movable detection support, a surface detection assembly, a transverse detection assembly and a clamping assembly are arranged on the detection support; the clamping assembly comprises a support structure, a mounting plate and a support column; one end of the support structure is fixedly connected with the detection support; the other end of the support structure is fixedly connected with the mounting plate; a mounting column is arranged on one side of the mounting plate, and an adjusting ring is arranged at the end of the mounting column; the adjusting ring is rotationally connected with the mounting column; and the adjusting ring is screwedly connected with the support column. In the application, the surface detection assembly and the transverse detection assembly are arranged simultaneously, so that the fast and comprehensive detection of the surface and the transverse size of the part can be realized, the detection efficiency and accuracy are improved, the clamping assembly can make the system adapt to parts of different sizes and shapes, the stability and non-deformation of the part during the detection process are ensured, and the error caused by improper clamping is reduced.

Description

Technical Field

[0001] This invention belongs to the field of parts inspection technology, specifically a rapid detection system for machining errors of large parts. Background Technology

[0002] Part machining error detection refers to a series of processes during manufacturing to measure and evaluate the dimensions, shape, position, and other parameters of a part to determine whether it meets design requirements and technical standards. Machining errors are usually caused by factors such as processes, equipment, and materials, and may affect the function, performance, and assembly accuracy of the part. Therefore, machining error detection is a crucial step in ensuring product quality.

[0003] In the prior art, for example, the technical solution described in patent publication number CN118258324A is a roundness detection device for disc-shaped parts, which measures the roundness of the disc-shaped parts using a V-shaped positioning block and a dial indicator. The V-shaped positioning block is fixed to the base by multiple V-shaped block fixing screws. One end face of the workpiece is placed on the inclined surface of the base, and the outer circle of the workpiece is positioned by the V-shaped positioning block. The probe of the dial indicator should retract inward by about 1 mm after contacting the workpiece and be tightened with two fixing screws, and the dial indicator should be zeroed. When the workpiece rotates within the V-shaped positioning block, the value at which the dial indicator deviates from zero is the roundness error value.

[0004] In current technology, the processing of large parts is typically carried out by multiple manufacturers, followed by unified assembly. For detecting processing errors in large parts, most companies still rely on traditional quality inspection methods, with quality department specialists responsible for checks. This method heavily depends on manual inspection, which, while able to identify some significant processing errors to a certain extent, cannot guarantee that all potential processing errors will be detected before shipment. If a problem is discovered, the assembly team may need to stop work for re-inspection and adjustments, severely threatening tight delivery schedules and causing delays in equipment delivery, thus affecting customer trust and satisfaction. Therefore, during assembly, parts need to be inspected again to ensure they meet assembly requirements. However, at this point, the parts are already in place and cannot be moved arbitrarily; therefore, inspection can only be performed using assembly inspection tools. Summary of the Invention

[0005] The purpose of this invention is to provide a rapid detection system for machining errors of large parts, in order to solve the problem in the prior art mentioned in the background that the machining errors of large parts are detected by humans, which cannot guarantee that all potential machining errors are checked before leaving the factory each time, and that manual inspection cannot be convenient and fast for large parts.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A rapid detection system for machining errors of large parts includes a movable detection bracket, on which a surface detection component, a lateral detection component, and a clamping component are mounted; wherein the surface detection component is located above the detection bracket, and the lateral detection component and the clamping component are located on the side wall of the detection bracket.

[0008] The clamping assembly includes a support structure, a mounting plate, and a support column; one end of the support structure is fixedly connected to the detection bracket; the other end of the support structure is fixedly connected to the mounting plate; a mounting column is provided on one side of the mounting plate, and the support column is installed inside the mounting column.

[0009] The mounting post extends to the other side of the mounting plate, and an adjusting ring is provided at the end of the mounting post; the adjusting ring is rotatably connected to the mounting post; an internal thread is provided on the inner wall of the adjusting ring, and an external thread is provided on the support post, and the adjusting ring is threadedly connected to the support post.

[0010] According to the above technical solution, the surface detection component includes a first camera and a first laser sensor; wherein the first camera and the first laser sensor are slidably mounted on the crossbeam of the detection bracket.

[0011] According to the above technical solution, a driving device is also provided on the crossbeam of the detection bracket. The driving device is used to drive the surface detection component to move left and right.

[0012] According to the above technical solution, the lateral detection component includes a second camera and a second laser sensor; wherein the second camera and the second laser sensor are disposed on the side wall of the detection bracket.

[0013] According to the above technical solution, there are four sets of transverse detection components, with two sets of transverse detection components set on the left and right sides of the detection bracket respectively.

[0014] According to the above technical solution, the support column includes an inner column and an outer column. A spring is sleeved on the outer wall of the inner column, one end of the spring is connected to the inner column, and the other end of the spring is connected to the inner wall of the outer column.

[0015] According to the above technical solution, the inner column is a magnetic fixing rod that obtains magnetism by passing an electric current through it. By passing an electric current through the inner column, the inner column becomes magnetic, thereby adsorbing and fixing the part to be tested.

[0016] According to the above technical solution, the support structure includes a mounting frame, a first support frame, and a second support frame; wherein, the first support frame is slidably mounted on the mounting frame, the second support frame is rotatably mounted on the mounting frame, and the first support frame and the second support frame are hinged together.

[0017] According to the above technical solution, the support structure also includes a drive cylinder, one end of which is fixedly mounted on the mounting bracket, and the other end of which is fixedly connected to the first support bracket. According to the above technical solution, a guide rail is also provided below the detection bracket, and the detection bracket is slidably mounted on the guide rail.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In this invention, by simultaneously setting up surface detection components and lateral detection components, rapid and comprehensive detection of the surface and lateral dimensions of parts can be achieved, improving detection efficiency and accuracy. The clamping components enable the system to adapt to parts of different sizes and shapes, ensuring the stability and non-deformation of parts during the detection process and reducing errors caused by improper clamping. Through the threaded connection between the adjusting ring and the support column, users can easily and precisely adjust the clamping force and position, thereby adapting to different part shapes and requirements and improving the system's flexibility. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the support column and adjusting ring of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the support column of the present invention;

[0023] Figure 4 This is a schematic diagram of the overall structure of the clamping assembly of the present invention;

[0024] Figure 5 This is one of the schematic diagrams for lateral inspection of the parts of this invention;

[0025] Figure 6 This is the second schematic diagram of the lateral inspection of the part of the present invention;

[0026] Figure 7 This is the third schematic diagram of the lateral inspection of the part of the present invention;

[0027] Figure 8 This is the fourth schematic diagram of the lateral inspection of the parts of this invention.

[0028] The markings in the diagram are: 100-Detection bracket, 200-Support structure, 300-Mounting plate, 400-Support column, 500-Adjusting ring, 600-First camera, 700-First laser sensor, 800-Drive device, 900-Second camera, 110-Second laser sensor, 111-Inner column, 112-Outer column, 113-Spring, 114-Mounting bracket, 115-First support bracket, 116-Second support bracket, 117-Drive cylinder, 118-Guide rail. Detailed Implementation

[0029] 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 some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1

[0031] like Figure 1 As shown, a rapid detection system for machining errors of large parts includes a movable detection bracket 100, on which a surface detection component, a lateral detection component, and a clamping component are disposed; wherein the surface detection component is disposed above the detection bracket 100, and the lateral detection component and the clamping component are disposed on the side wall of the detection bracket 100.

[0032] like Figure 4 As shown, the clamping assembly includes a support structure 200, a mounting plate 300, and a support column 400; wherein, one end of the support structure 200 is fixedly connected to the detection bracket 100; the other end of the support structure 200 is fixedly connected to the mounting plate 300; a mounting column is provided on one side of the mounting plate 300, and the support column 400 is disposed inside the mounting column;

[0033] like Figure 4 As shown, the mounting post extends to the other side of the mounting plate 300, and an adjusting ring 500 is provided at the end of the mounting post; the adjusting ring 500 is rotatably connected to the mounting post; an internal thread is provided on the inner wall of the adjusting ring 500, and an external thread is provided on the support post 400, and the adjusting ring 500 is threadedly connected to the support post 400.

[0034] In this invention, by simultaneously setting up a surface detection component and a lateral detection component, rapid and comprehensive detection of the surface and lateral dimensions of parts can be achieved, improving detection efficiency and accuracy. The clamping component enables the system to adapt to parts of different sizes and shapes, ensuring the stability and non-deformation of parts during the detection process and reducing errors caused by improper clamping. Through the threaded connection between the adjusting ring 500 and the support column 400, users can easily and precisely adjust the clamping force and position to adapt to different part shapes and requirements, thereby improving the flexibility of the system.

[0035] In this invention, the movable testing bracket 100 design allows the system to be moved and used between different workstations, saving space and improving work efficiency. The fixed support structure 200 and stable clamping method reduce testing errors caused by vibration or instability, thereby improving the overall reliability and accuracy of the testing. The system design in this invention simplifies the testing process, enabling operators to quickly learn and reduce operating time and labor costs.

[0036] The detection system in this invention significantly improves the detection efficiency, flexibility, and accuracy of large parts processing through the coordinated operation of multiple components, meeting the needs of modern industry for fast, efficient, and high-precision machine inspection.

[0037] Example 2

[0038] This embodiment is a further refinement of Embodiment 1.

[0039] like Figure 1 As shown, the surface detection assembly includes a first camera 600 and a first laser sensor 700; wherein the first camera 600 and the first laser sensor 700 are slidably mounted on the crossbeam of the detection bracket 100. A driving device 800 is also provided on the crossbeam of the detection bracket 100, and the driving device 800 is used to drive the surface detection assembly to move left and right.

[0040] Specifically, by setting the first camera 600 and the first laser sensor 700 on the crossbeam of the detection bracket 100, and by driving the first camera 600 and the first laser sensor 700 to move on the crossbeam through the drive device 800, the positions of the first camera 600 and the first laser sensor 700 can be adjusted left and right, thereby detecting different positions on the upper surface of the part to be tested.

[0041] Furthermore, the drive unit 800 uses existing devices, such as a motor-driven ball screw structure, to move the surface detection component.

[0042] The lateral detection assembly includes a second camera 900 and a second laser sensor 110; wherein the second camera 900 and the second laser sensor 110 are disposed on the side wall of the detection bracket 100. Four sets of lateral detection assemblies are provided, with two sets of lateral detection assemblies respectively disposed on the left and right sides of the detection bracket 100.

[0043] Furthermore, the lateral detection component can move on the detection bracket 100. For example, by setting up a pulley system driven by a motor and a traction rope, the lateral detection component is fixedly connected to the traction rope, thereby driving the lateral detection component to move on the detection bracket 100.

[0044] Specifically, such as Figure 1As shown, four sets of transverse detection components are respectively set on both sides of the detection bracket 100. The four sets of transverse detection components are arranged opposite each other in pairs. The transverse shaft hole of the part to be tested is detected through the two sets of transverse detection components arranged opposite each other.

[0045] This embodiment provides a specific inspection method for lateral inspection of parts.

[0046] Due to the large size of large parts, multiple manufacturers typically work together to process them in order to save processing time. After processing, the parts are then assembled. Before assembly, a final inspection is required. This inspection checks for coaxiality, machining errors, and deformation caused during transport, ensuring the quality of the parts before assembly and preventing assembly errors or misalignments. Therefore, this pre-assembly inspection is essential. Since moving the parts after placement is inconvenient, their positions are usually not adjusted, and they are never transported to a testing workshop. Therefore, on-site assembly and testing equipment is used to inspect the parts.

[0047] The testing bracket in this invention is composed of detachable brackets made of aluminum alloy. By disassembling or combining these brackets, the testing bracket can be deployed in any position, which facilitates the testing of large parts.

[0048] Furthermore, such as Figure 1 As shown, after the two guide rails 118 are laid, a connecting frame is installed on the two guide rails 118 to fix the two guide rails 118.

[0049] Step 1: As Figure 5 As shown, first attach a target paper (with a reflector) to one of the transverse shaft holes (let's say hole A) of the part to be tested.

[0050] Step 2: Start the lateral detection component. Before starting, zero the encoder; set the base point (move the second laser sensor 110 until it first touches the edge of hole A, such as...). Figure 6 (As shown in the "1" position), the second laser sensor 110 receives the reflected signal from the target paper at this time.

[0051] Step 3: The lateral detection component slowly moves upward along the detection bracket 100, the second laser sensor 110 continuously measures the distance, and the signal of the second laser sensor 110 remains unchanged until position "2" (e.g., Figure 6 As shown), when the signal of the second laser sensor 110 changes, ranging stops, and a distance d1 from point "1" to point "2" is recorded. The distance d1 recorded by the encoder is transmitted wirelessly to the computer to calculate the midpoint distance and coordinates O (as shown). Figure 7 (As shown). And control the lateral detection component to calculate the coordinates to the midpoint.

[0052] Step 4: The detection bracket 100 moves to the right along the guide rail 118, and the second laser sensor 110 continues to measure the distance. The signal of the second laser sensor 110 remains unchanged until the position "3" (e.g., Figure 8 As shown), the signal changes, stopping the ranging and moving a distance of d2. The encoder is zeroed, the base point is set, and then it moves to the left along guide rail 118 until position "4" (as shown). Figure 8 (As shown), stop measuring distance, record a distance d3, and transmit d2 and d3 to the computer wirelessly. Calculate the midpoint distance and coordinates O1 (the center of the hole) by using distances d2 and d3.

[0053] Step 5: Repeat steps 1-4 to measure the center coordinate O2 of another transverse shaft hole (let's say hole B).

[0054] Step 6: Compare whether the coordinates of O1 and O2 are consistent. If they are, they are coaxial; if not, they are not coaxial and the parts need to be adjusted.

[0055] like Figure 3 As shown, the support column 400 includes an inner column 111 and an outer column 112. A spring 113 is fitted onto the outer wall of the inner column 112. One end of the spring 113 is connected to the inner column 111, and the other end is connected to the inner wall of the outer column 112. The inner column 111 is a magnetic fixing rod. By energizing the inner column 111, it acquires magnetism, thereby attracting and fixing the part to be tested.

[0056] Specifically, when it is necessary to clamp the part to be tested, the support structure 200 drives the support columns 400 on both sides of the test bracket 100 to move relative to each other to clamp the part to be tested; when the end of the inner column 111 contacts the surface of the part to be tested, the inner column 111 will be squeezed, and the compression spring 113 will buffer the inner column 111 and the part to be tested to avoid the inner column 111 directly impacting the part to be tested, thereby causing damage to the surface of the part to be tested.

[0057] like Figure 2 As shown, when clamping an irregular part surface, the length of the support column 400 can be adjusted by rotating the adjusting ring 500, which in turn drives the end of the outer column 112 to rotate and move through the internal thread of the adjusting ring 500. This allows the support column 400 to clamp the irregular part surface, thus improving the application range of the clamping assembly.

[0058] The support structure 200 includes a mounting frame 114, a first support frame 115, and a second support frame 116; wherein the first support frame 115 is slidably disposed on the mounting frame 114, the second support frame 116 is rotatably disposed on the mounting frame 114, and the first support frame 115 and the second support frame 116 are hinged together.

[0059] The support structure 200 also includes a drive cylinder 117, one end of which is fixedly mounted on the mounting bracket 114, and the other end of which is fixedly connected to the first support bracket 115.

[0060] Specifically, the first support frame 115 is moved by the drive cylinder 117, which causes the first support frame 115 to drive the second support frame 116 to rotate together, thereby supporting the mounting plate 300.

[0061] A guide rail 118 is also provided below the testing bracket 100, and the testing bracket 100 is slidably mounted on the guide rail 118.

[0062] Specifically, the guide rail 118 is used to detect the movement of the support bracket 100. A drive wheel is provided below the detection bracket 100, which is driven by a motor, thereby causing the detection bracket 100 to move.

[0063] The working principle of this invention is as follows: During use, the position of the detection bracket 100 is adjusted by moving the detection bracket 100 so that the part to be tested is located in the middle of the detection bracket 100. Then, the drive cylinder 117 pushes the first support frame 115 to move, causing the first support frame 115 to drive the second support frame 116 to rotate together, thereby supporting the mounting plate 300. The mounting plate 300 drives the support columns 400 on both sides of the detection bracket 100 to move relative to each other, clamping the part to be tested. The internal thread of the adjusting ring 500 drives the end of the outer column 112 to rotate and move, thereby adjusting the length of the support column 400 so that the support column 400 can clamp the irregular surface of the part.

[0064] Then, the surface of the part to be tested and the transverse shaft hole are detected by the surface detection component and the transverse detection component.

[0065] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0066] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A large part machining error rapid detection system, characterized in that: The surface detection assembly, the lateral detection assembly and the clamping assembly are arranged on the movable detection support (100); the surface detection assembly is arranged above the detection support (100), and the lateral detection assembly and the clamping assembly are arranged on the side wall of the detection support (100); The clamping assembly comprises a support structure (200), a mounting plate (300) and a support column (400); one end of the support structure (200) is fixedly connected with the detection support (100); the other end of the support structure (200) is fixedly connected with the mounting plate (300); a mounting column is arranged on one side of the mounting plate (300), and the support column (400) is arranged in the mounting column; The support structure (200) comprises a mounting frame (114), a first support frame (115) and a second support frame (116); the first support frame (115) is slidingly arranged on the mounting frame (114), and the second support frame (116) is rotatably arranged on the mounting frame (114); the first support frame (115) and the second support frame (116) are hingedly connected; The mounting column extends to the other side of the mounting plate (300), and an adjusting ring (500) is arranged at the end of the mounting column; the adjusting ring (500) is rotatably connected with the mounting column; an internal thread is arranged on the inner wall of the adjusting ring (500), and an external thread is arranged on the support column (400); the adjusting ring (500) is threadedly connected with the support column (400); The support column (400) comprises an inner column (111) and an outer column (112); a spring (113) is sleeved on the outer wall of the inner column (111); one end of the spring (113) is connected with the inner column (111), and the other end of the spring (113) is connected with the inner wall of the outer column (112); the inner column (111) is a magnetically attractive fixing rod with magnetism obtained by electrification; the inner column (111) is electrified to obtain magnetism, so as to adsorb and fix the measured part; When the measured part needs to be clamped, the support structure (200) drives the support columns (400) on both sides of the detection support (100) to move relatively, so as to clamp the measured part; when the end of the inner column (111) contacts the surface of the measured part, the inner column (111) is extruded, and the compression spring (113) is compressed to buffer the inner column (111) and the measured part, so as to avoid that the inner column (111) directly impacts the measured part and causes damage to the surface of the measured part.

2. The system for rapid detection of machining errors of large parts according to claim 1, characterized in that: The surface detection assembly comprises a first camera (600) and a first laser sensor (700); the first camera (600) and the first laser sensor (700) are slidingly arranged on the crossbeam of the detection support (100).

3. The system for rapid detection of machining errors of large parts according to claim 2, characterized in that: A driving device (800) is further arranged on the crossbeam of the detection support (100), and the driving device (800) is used for driving the surface detection assembly to move left and right.

4. The system for rapid detection of machining errors of large parts according to claim 3, characterized in that: The lateral detection assembly comprises a second camera (900) and a second laser sensor (110); the second camera (900) and the second laser sensor (110) are arranged on the side wall of the detection support (100).

5. The system for rapid detection of machining errors of large parts according to claim 4, characterized in that: The transverse detection assembly is provided with four groups, and two groups of transverse detection assemblies are respectively arranged on the left and right sides of the detection support (100).

6. The system for rapid detection of machining errors of large parts according to claim 5, characterized in that: The support structure (200) further comprises a driving cylinder (117), one end of the driving cylinder (117) is fixedly arranged on the mounting rack (114), and the other end of the driving cylinder (117) is fixedly connected with the first support frame (115).

7. The system for rapid detection of machining errors of large parts according to claim 6, characterized in that: A guide rail (118) is further arranged below the detection support (100), and the detection support (100) is slidingly arranged on the guide rail (118).

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