A cam curve parameter detection device

Abstract

The utility model relates to the technical field of cam detection, especially to a cam curve parameter detection device, including detection table, positioning assembly, rotation structure, frame, detection assembly and data processing module, positioning assembly sets up at the top of detection table through rotation structure, positioning assembly is used for positioning the cam of detection, and rotation structure is used for driving the rotation of the cam of detection, frame is fixed in the outside of detection table, positioning assembly and rotation structure, two sets of detection assembly install on the frame and are used for gathering the curve parameter of the cam of detection, data processing module is electrically connected with detection assembly and is used for receiving and processing the parameter data that detection assembly gathered, and it is through the cooperation of non -contact detection assembly and adaptable positioning structure, realizes the automation integrated detection of multi -specification cam curve parameter under the stable controllable detection environment, promotes the detection efficiency, accuracy and adaptability.

Description

Technical Field

[0001] This utility model relates to the technical field of cam detection, and in particular to a cam curve parameter detection device. Background Technology

[0002] In the field of precision manufacturing, cams are core components for achieving precise mechanical motion control. The accuracy of their curve parameters directly determines the transmission accuracy, operational stability, and service life of the equipment. Especially in the roller cam structure of a horizontal rotary table, the cam curve must ensure continuous meshing between the double rollers and the cam to eliminate backlash, which is the key foundation for achieving zero-backlash transmission and high-precision positioning.

[0003] Current methods for detecting cam curve parameters largely rely on contact measurement, using mechanical probes to collect data point by point. This approach suffers from low measurement efficiency, errors introduced by probe wear, and difficulty adapting to the dynamic detection needs of complex curved surfaces. While some non-contact detection devices have solved the contact wear problem, they generally suffer from complex structures and poor adaptability, making them incompatible with cam detection of different sizes and specifications, and unable to simultaneously achieve integrated detection of multiple dimensions such as curve profile and surface flatness. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a non-contact integrated detection device for cam curve parameters that is highly adaptable, efficient, and accurate.

[0005] This utility model discloses a cam curve parameter detection device, comprising a detection platform, a positioning component, a rotating structure, a frame, detection components, and a data processing module. The positioning component is mounted on the top of the detection platform via the rotating structure and is used to position the cam to be detected. The rotating structure is used to drive the cam to be detected to rotate. The frame is fixed to the outside of the detection platform, the positioning component, and the rotating structure. Two sets of detection components are mounted on the frame and are used to collect the curve parameters of the cam to be detected. The data processing module is electrically connected to the detection components and is used to receive and process the parameter data collected by the detection components.

[0006] As a preferred embodiment of this utility model, the testing platform includes a base and a support plate; support legs and pulleys are installed around the bottom of the support plate, the pulleys are located inside the support legs, the base has a groove matching the pulleys, and the base is provided with a buffer bumper for limiting and buffering the support plate.

[0007] As a preferred embodiment of this utility model, the positioning component includes a support and a radial limiting member; the support is rotatably connected to the support plate through a rotating structure, and the radial limiting member is disposed on the top of the support to limit the radial movement of the cam to be detected.

[0008] As a preferred embodiment of this utility model, the radial limiting component includes a mounting base, a first rotary drive component, a disc, movable rods, and a locking block. The mounting base is embedded in the support and has a cavity inside. The first rotary drive component is fixed in the cavity, and the disc is fixedly installed at the output end of the first rotary drive component. One end of each of the three movable rods is rotatably mounted on the lower surface of the disc, and a pressing rod is rotatably mounted on the ends of the movable rods that are far apart from each other. The top of the pressing rod passes through the mounting base and is connected to the locking block. The outer circumferential surface of the locking block fits against the side wall of the shaft hole of the cam to be tested. A path hole adapted to the movement trajectory of the pressing rod is opened through the upper surface of the mounting base.

[0009] As a preferred embodiment of this utility model, the rotating structure includes a bearing, a rotating sleeve, a second rotating drive component, a first gear, and a second gear. The bearing is fixed on the support plate, and the annular rotating sleeve is rotatably connected to the support plate through the bearing. The end of the rotating sleeve away from the support plate is fixed to the support. The second rotating drive component is fixed on the support plate, and the second gear is fixedly installed at the output end of the second rotating drive component. The first gear is fixedly installed outside the rotating sleeve, and the first gear and the second gear mesh.

[0010] As a preferred embodiment of this utility model, the detection assembly includes a linear drive, a detection bracket, and a contour scanner; the linear drive is mounted on a frame, and the detection bracket is connected to the output end of the linear drive; the contour scanner is mounted on the detection bracket and is used to collect the curve contour data of the cam.

[0011] As a preferred embodiment of this utility model, the detection assembly further includes an angle adjustment component, which is disposed between the detection bracket and the contour scanner and is used to adjust the detection angle of the contour scanner.

[0012] As a preferred embodiment of this utility model, the data processing module includes a data receiving unit, a data analysis unit, and a result output unit; the data receiving unit is used to receive the raw data collected by the detection component, the data analysis unit is used to filter, fit, and perform error analysis on the raw data, and the result output unit is used to output a detection report.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] By combining a contour scanner with a displacement sensor, a non-contact detection method is adopted, which avoids the error problem caused by probe wear in traditional contact measurement. At the same time, it can simultaneously collect multi-dimensional parameters such as cam curve contour and surface flatness, eliminating the need for multiple replacements of detection equipment and improving the comprehensiveness and accuracy of detection. In the positioning component, the radial limiter drives the disk to rotate through the first rotary drive component, which can drive the three movable rods to link the pressing rod and the locking block to expand or contract synchronously, adapting to the positioning requirements of cams with different shaft hole sizes. The detection component uses a linear drive component to adjust the position of the detection bracket, and coordinates with the angle adjustment component to adjust the angle of the contour scanner, which can be compatible with the detection of cams of various specifications. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a partial structural schematic diagram of the present invention. Figure 1 ;

[0017] Figure 3 This is a partial structural schematic diagram of the present invention. Figure 2 ;

[0018] Figure 4 yes Figure 3 A schematic diagram of the cross-sectional structure of section AA in the middle;

[0019] Figure 5 This is a partial structural schematic diagram of the radial limiting component of this utility model;

[0020] Figure 6 This is a schematic diagram of the detection component of this utility model;

[0021] Figure 7 This is a schematic diagram of the data processing module of this utility model;

[0022] The attached diagram shows the following components: 1. Detection platform; 11. Base; 111. Slide groove; 112. Buffer bumper; 12. Support plate; 121. Support leg; 122. Pulley; 2. Positioning assembly; 21. Support; 22. Radial limiter; 221. Mounting base; 2211. Cavity; 2212. Path hole; 222. First rotary drive component; 223. Disc; 224. Movable rod; 225. Locking block; 226. Pressing rod; 3. Rotating structure; 31. Bearing; 32. Rotating sleeve; 33. Second rotary drive component; 34. First gear; 35. Second gear; 4. Frame; 5. Detection assembly; 51. Linear drive component; 52. Detection bracket; 54. Contour scanner; 55. Angle adjustment component; 6. Data processing module; 61. Data receiving unit; 62. Data analysis unit; 63. Result output unit. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Reference Figure 1 This embodiment provides a cam curve parameter detection device, including a detection platform 1, a positioning component 2, a rotating structure 3, a frame 4, detection components 5, and a data processing module 6. The positioning component 2 is mounted on the top of the detection platform 1 via the rotating structure 3. The positioning component 2 is used to position the cam to be detected, and the rotating structure 3 is used to drive the cam to be detected to rotate. The frame 4 is fixed to the outside of the detection platform 1, the positioning component 2, and the rotating structure 3. Two sets of detection components 5 are mounted on the frame 4 and are used to collect the curve parameters of the cam to be detected. The data processing module 6 is electrically connected to the detection components 5 and is used to receive and process the parameter data collected by the detection components 5. In this embodiment, the positioning component 2 accurately positions the cam to be detected, the rotating structure 3 drives the cam to rotate stably, the two sets of detection components 5 synchronously collect curve parameters, and the data processing module 6 realizes real-time data processing and analysis. The overall structure has a high degree of integration and can effectively solve the problems of low efficiency, large error, and poor adaptability of traditional detection methods.

[0026] Reference Figures 2-3 The testing table 1 includes a base 11 and a support plate 12. Support legs 121 and pulleys 122 are installed around the bottom of the support plate 12. The pulleys 122 are located inside the support legs 121. The base 11 has a groove 111 that matches the pulleys 122. The base 11 is provided with a buffer bumper 112 for limiting and buffering the support plate 12. Specifically, the slide groove 111 is opened along the length of the base 11, and its cross-section is adapted to the rim shape of the pulley 122 to ensure that the support plate 12 slides stably along a straight line; the support legs 121 can be electric telescopic rods, with a total of 4, located at the four corners of the bottom of the support plate 12. When the support plate 12 moves to the detection position, the support legs 121 extend and fit against the surface of the base 11, so that the pulley 122 is disengaged from the sliding surface, thereby achieving stable fixation of the support plate 12; the buffer bumper 112 can be made of elastic rubber. When the support plate 12 slides to the limit position, the buffer bumper 112 can absorb the impact force and avoid damage to the components due to collision; in use, the support plate 12 can be pushed to make the pulley 122 slide along the slide groove 111 to achieve quick position adjustment and avoid the frame 4 affecting the disassembly and assembly of the cam.

[0027] The positioning component 2 includes a support 21 and a radial limiting member 22. The support 21 is rotatably connected to the support plate 12 through the rotating structure 3. The radial limiting member 22 is set on the top of the support 21 to limit the radial displacement of the cam to be tested during rotation and ensure the stability of the detection point position.

[0028] Specifically, refer to Figures 3-5 The radial limiting component 22 includes a mounting base 221, a first rotary drive component 222, a disc 223, movable rods 224, and a locking block 225. The mounting base 221 is embedded in the support 21, and its interior has a cavity 2211. The first rotary drive component 222 can be a stepper motor, which is fixed in the cavity 2211. The disc 223 is fixedly installed on the output end of the first rotary drive component 222. The length of the movable rods 224 is designed according to the diameter range of the camshaft hole. One end of each of the three movable rods 224 is rotatably mounted on the lower surface of the disc 223, and the ends of the movable rods 224 that are far apart from each other are rotatably mounted on a locking block 225. The pressure rod 226 has its top extending through the mounting base 221 and connecting to the locking block 225. The outer circumferential surface of the locking block 225 is in contact with the side wall of the shaft hole of the cam to be tested. A polyurethane anti-slip pad can be attached to the outer circumferential surface of the locking block 225. The contact friction between the anti-slip pad surface and the side wall of the cam shaft hole can further improve the positioning stability. A path hole 2212 adapted to the moving trajectory of the pressure rod 226 is provided through the upper surface of the mounting base 221. Its length is slightly greater than the moving stroke of the pressure rod 226, and its width is clearance-fitted with the cross-sectional width of the pressure rod 226, which can guide the moving direction of the pressure rod 226. When radially positioning the cam to be tested, the cam shaft hole is fitted onto the outside of the three locking blocks 225. The first rotary drive 222 is activated, driving the disc 223 to rotate. The disc 223 pushes the pressing rod 226 along the path hole 2212 away from the center of the mounting base 221 via the movable rod 224, thereby causing the locking blocks 225 to expand outward until the outer circumferential surface of the locking blocks 225 is tightly fitted with the side wall of the cam shaft hole, completing the radial positioning. When it is necessary to remove the cam, the first rotary drive 222 is controlled to rotate in the opposite direction, and the disc 223 pulls the pressing rod 226 inward via the movable rod 224, thus separating the locking blocks 225 from the cam shaft hole. This structure can be adapted to cam shaft holes of different diameters.

[0029] The rotating structure 3 includes a bearing 31, a rotating sleeve 32, a second rotating drive component 33, a first gear 34, and a second gear 35. The bearing 31 is fixed on the support plate 12. The annular rotating sleeve 32 is rotatably connected to the support plate 12 via the bearing 31. The end of the rotating sleeve 32 away from the support plate 12 is fixed to the support 21. The second rotating drive component 33 can be a servo motor, fixed on the support plate 12. The second gear 35 is fixedly installed at the output end of the second rotating drive component 33, and the first gear 34 is fixedly installed outside the rotating sleeve 32, with the first gear 34 and the second gear 35 meshing. During operation, the second rotating drive component 33 is started, and its output shaft drives the second gear 35 to rotate. The second gear 35 drives the first gear 34 to rotate through meshing transmission, thereby driving the rotating sleeve 32 and the support 21 to rotate synchronously, ultimately realizing the rotational movement of the cam to be detected. The servo motor can achieve closed-loop position control through an encoder, which can accurately control the rotation angle and speed of the cam according to the detection requirements.

[0030] Reference Figure 6 The detection component 5 includes a linear drive 51, a detection bracket 52, and a contour scanner 54. The linear drive 51 is mounted on the frame 4, and the detection bracket 52 is connected to the output end of the linear drive 51. The contour scanner 54 is mounted on the detection bracket 52 and is used to collect the curve contour data of the cam. Specifically, the linear drive 51 can be a transverse drive pair and a longitudinal drive pair composed of a cylinder, an electric push rod, or other commonly used linear drive components. The fixed part of the longitudinal drive pair is located on the moving part of the transverse drive pair, and the moving part of the longitudinal drive pair forms the output end of the linear drive 51, which can drive the detection bracket 52 to move to the detection area to adapt to the detection of cams with different axial heights. The contour scanner 54 is a line laser contour scanner, which can quickly collect the contour data of the cam surface. The two sets of detection components 5 are symmetrically arranged on both sides of the frame 4. Before use, according to the size specifications of the cam, the position of the detection bracket 52 is adjusted by the linear drive 51 so that the detection head of the contour scanner 54 is aligned with the curve contour of the cam. During the detection process, the contour scanner 54 continuously collects the contour data of the cam.

[0031] The detection assembly 5 also includes an angle adjustment component 55, which is located between the detection bracket 52 and the contour scanner 54 and is used to adjust the detection angle of the contour scanner 54. The angle adjustment component 55 can be electrically driven and consists of a micro servo motor, a harmonic reducer, and an angle encoder. The micro servo motor is fixed to the detection bracket 52, and its output end is connected to the contour scanner 54 via the harmonic reducer. The angle encoder provides real-time feedback of the rotation angle to achieve precise electric adjustment of the detection angle. This structure ensures that the contour scanner 54 is aligned with the cam at the optimal angle, improving the quality of data acquisition.

[0032] Reference Figure 7The data processing module 6 includes a data receiving unit 61, a data analysis unit 62, and a result output unit 63. The data processing module 6 can be implemented using a computer, which communicates with the contour scanner 54 in the detection component 5 via Ethernet. The data receiving unit 61 is a data acquisition card in the computer, used to receive the raw data collected by the detection component 5. The data analysis unit 62 has a built-in data processing algorithm, used to filter, fit, and analyze errors in the raw data. The result output unit 63 is a display, used to display the data curves and error analysis results during the detection process in real time, and output a detection report. This structure enables efficient reception, accurate processing, and intuitive presentation of cam curve parameters, improving detection efficiency and result readability.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A cam curve parameter detection device, characterized in that, The system includes a testing platform (1), a positioning component (2), a rotating structure (3), a frame (4), a testing component (5), and a data processing module (6). The positioning component (2) is mounted on the top of the testing platform (1) via the rotating structure (3). The positioning component (2) is used to position the cam to be tested, and the rotating structure (3) is used to drive the cam to be tested to rotate. The frame (4) is fixed to the outside of the testing platform (1), the positioning component (2), and the rotating structure (3). Two sets of testing components (5) are mounted on the frame (4) and are used to collect the curve parameters of the cam to be tested. The data processing module (6) is electrically connected to the testing component (5) and is used to receive and process the parameter data collected by the testing component (5).

2. The cam curve parameter detection device as described in claim 1, characterized in that, The testing platform (1) includes a base (11) and a support plate (12); the support plate (12) is equipped with support legs (121) and pulleys (122) around its bottom edge. The pulleys (122) are located inside the support legs (121). The base (11) has a groove (111) that matches the pulleys (122). The base (11) is provided with a buffer bumper (112) for limiting and buffering the support plate (12).

3. The cam curve parameter detection device as described in claim 2, characterized in that, The positioning component (2) includes a support (21) and a radial limiting member (22); the support (21) is rotatably connected to the support plate (12) through the rotating structure (3), and the radial limiting member (22) is disposed on the top of the support (21) to limit the radial movement of the cam to be detected.

4. The cam curve parameter detection device as described in claim 3, characterized in that, The radial limiting member (22) includes a mounting base (221), a first rotary drive member (222), a disc (223), movable rods (224), and a locking block (225); the mounting base (221) is embedded in the support (21), and has a cavity (2211) inside it; the first rotary drive member (222) is fixed in the cavity (2211), and the disc (223) is fixedly installed at the output end of the first rotary drive member (222); the three movable rods (224) 4) One end of each of the movable rods (224) is rotatably mounted on the lower surface of the disc (223), and the ends of each of the movable rods (224) that are far apart from each other are rotatably mounted with a pressing rod (226); the top of the pressing rod (226) passes through the mounting base (221) and is connected to the locking block (225); the outer peripheral surface of the locking block (225) is in contact with the side wall of the shaft hole of the cam to be tested; the upper surface of the mounting base (221) is provided with a path hole (2212) that is adapted to the moving trajectory of the pressing rod (226).

5. The cam curve parameter detection device as described in claim 3, characterized in that, The rotating structure (3) includes a bearing (31), a rotating sleeve (32), a second rotating drive (33), a first gear (34), and a second gear (35). The bearing (31) is fixed on the support plate (12). The rotating sleeve (32), which has an annular structure, is rotatably connected to the support plate (12) through the bearing (31). One end of the rotating sleeve (32) away from the support plate (12) is fixed to the support (21). The second rotating drive (33) is fixed on the support plate (12). The second gear (35) is fixedly installed at the output end of the second rotating drive (33). The first gear (34) is fixedly installed outside the rotating sleeve (32), and the first gear (34) and the second gear (35) mesh.

6. The cam curve parameter detection device as described in claim 1, characterized in that, The detection component (5) includes a linear drive (51), a detection bracket (52), and a contour scanner (54); the linear drive (51) is mounted on the frame (4), and the detection bracket (52) is connected to the output end of the linear drive (51); the contour scanner (54) is mounted on the detection bracket (52) and is used to collect the curve contour data of the cam.

7. The cam curve parameter detection device as described in claim 6, characterized in that, The detection component (5) further includes an angle adjustment component (55), which is disposed between the detection bracket (52) and the contour scanner (54) for adjusting the detection angle of the contour scanner (54).

8. The cam curve parameter detection device as described in claim 1, characterized in that, The data processing module (6) includes a data receiving unit (61), a data analysis unit (62), and a result output unit (63). The data receiving unit (61) is used to receive the raw data collected by the detection component (5), the data analysis unit (62) is used to filter, fit, and perform error analysis on the raw data, and the result output unit (63) is used to output a detection report.

Images