Online size measuring device based on machine vision
By introducing height adjustment and left-right movement mechanisms into the machine vision online dimensional measurement device, combined with a rotation mechanism and rubber pads, the problem that existing devices can only measure fixed-size parts has been solved, enabling all-round measurement of parts of different sizes and improving measurement efficiency and accuracy.
Patent Information
- Application Number
- CN202520030199.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Existing machine vision-based online dimension measurement devices can only measure shaft parts of a fixed type. When it is necessary to measure larger parts, the imaging is incomplete and the part size cannot be accurately measured.
The device employs a combination of an image acquisition mechanism, a second motor, a double-threaded lead screw, a moving plate, a rotating plate, and a second mounting frame. Through a height adjustment mechanism and a left-right moving mechanism, it can adapt to the dimensional measurement of parts of different sizes. Combined with a rotating mechanism and rubber pads, it enables omnidirectional measurement of parts.
The device's applicability has been expanded, and the efficiency and accuracy of part size measurement have been improved. It has a wider range of applications and higher measurement efficiency.
Smart Images
Figure CN223580945U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of online size measurement, especially online size measurement device based on machine vision. BACKGROUND
[0002] Machine vision is using optical device to carry out non - contact perception, automatic acquisition and interpretation a real scene image to obtain information and (or) control machine's process, namely through machine vision product will be taken target into image signal, transfer to the dedicated image processing system and image.
[0003] The existing online size measurement device based on machine vision is mostly used for measuring shaft parts, and when measuring the size of shaft parts, only fixed type parts can be measured, and when large size parts are needed, the device cannot image completely and cannot accurately measure the size of the parts. UTILITY MODEL CONTENT
[0004] Therefore, the utility model provides an online size measurement device based on machine vision, which mainly solves the technical problem that when measuring the size of shaft parts, only fixed type parts can be measured, and when large size parts are needed, the device cannot image completely and cannot accurately measure the size of the parts.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: an online size measurement device based on machine vision, comprising a workbench, the upper surface of the workbench is fixedly connected with a first mounting frame, the upper side of the first mounting frame is provided with a second mounting frame, the upper side of the second mounting frame is provided with an image acquisition mechanism, the upper side of the workbench is provided with a rotating mechanism, the first mounting frame and the second mounting frame are connected through a height adjusting mechanism, the second mounting frame and the image acquisition mechanism are connected through a left and right moving mechanism.
[0006] The height adjusting mechanism comprises a second motor, the side wall of the first mounting frame is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a double thread screw rod, the outer surface of the double thread screw rod is threadedly connected with a moving plate, the number of the moving plate is two, the upper surface of the moving plate is movably installed with a rotating plate, the end of the rotating plate away from the moving plate is movably installed with a second mounting frame, and a limiting mechanism is arranged between the second mounting frame and the workbench.
[0007] By adopting the above technical scheme, different size parts can be measured, and the application range is wider.
[0008] Further description of the above technical scheme:
[0009] The inner wall of the first mounting frame is fixedly connected with a sliding rod, and the outer surface of the sliding rod is sleeved with a moving plate.
[0010] By adopting the technical scheme, the slide rod can further limit the movement of the moving plate.
[0011] As a further description of the above technical scheme:
[0012] The left-right moving mechanism comprises a third motor, the side wall of the second mounting frame is fixedly connected with the third motor, the output end of the third motor is fixedly connected with a lead screw, the outer surface of the lead screw is threadedly connected with a moving block, and the upper surface of the moving block is fixedly connected with the image acquisition mechanism.
[0013] By adopting the technical scheme, the left-right movement of the image acquisition mechanism can be controlled through the left-right moving mechanism, and thus the image acquisition area of the image acquisition mechanism can be increased.
[0014] As a further description of the above technical scheme:
[0015] The limiting mechanism comprises two limiting blocks, the side wall of the second mounting frame is fixedly connected with the limiting blocks, the upper surface of the workbench is fixedly connected with a limiting rod, and the upper surface of the limiting rod is fixedly connected with a limiting disc.
[0016] By adopting the technical scheme, the limiting blocks and the limiting rod can cooperate to limit the up-down movement of the second mounting frame, so as to avoid the inclination of the second mounting frame during the up-down movement.
[0017] As a further description of the above technical scheme:
[0018] The rotating mechanism comprises a fixed seat, the upper surface of the workbench is fixedly connected with the fixed seat, the inner portion of the fixed seat is provided with a mounting groove, the inner bottom of the mounting groove is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a first rotating shaft, the upper surface of the first rotating shaft is fixedly connected with a rotating disc, and the upper surface of the rotating disc is fixedly connected with a rubber pad.
[0019] By adopting the technical scheme, the efficiency of the device in measuring the size of the part can be improved.
[0020] As a further description of the above technical scheme:
[0021] The upper surface of the fixed seat is fixedly connected with a limiting ring, the inner portion of the limiting ring is provided with a plurality of ball grooves, the inner portion of each ball groove is movably mounted with a ball, and the outer surface of the limiting ring is sleeved with the rotating disc.
[0022] By adopting the technical scheme, the friction between the limiting ring and the rotating disc can be greatly reduced through the balls, the rotating disc can rotate more smoothly, and the service life of the rotating disc is increased.
[0023] By the above technical scheme, the online size measuring device based on machine vision has at least the following beneficial effects:
[0024] Compared with the prior art, the online size measuring device based on machine vision can adjust the height of the image acquisition mechanism, thereby achieving the effect of photographing the whole part, and making the device more widely applicable.
[0025] Compared with the prior art, the online size measuring device based on machine vision can adjust the height of the image acquisition mechanism, thereby achieving the effect of photographing the whole part, and making the device more widely applicable.
[0026] Compared with the prior art, the online size measuring device based on machine vision can adjust the height of the image acquisition mechanism, thereby achieving the effect of photographing the whole part, and making the device more widely applicable. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 The overall structure of the online size measuring device based on machine vision is shown in the figure;
[0028] Figure 2 The overall structure of the online size measuring device based on machine vision is shown in the figure;
[0029] Figure 3The utility model provides an online size measuring device based on machine vision Figure 2 The structure enlarged view at A in the figure
[0030] Figure 4 The utility model provides an online size measuring device based on machine vision's whole structure part sectional view.
[0031] Legend:
[0032] 1, workbench, 2, first installation frame, 3, second installation frame, 4, image acquisition mechanism, 5, rotating mechanism, 51, fixed seat, 52, installation groove, 53, first motor, 54, first rotating shaft, 55, rotating disc, 56, limit ring, 57, ball groove, 58, ball, 59, rubber pad, 6, height adjusting mechanism, 61, second motor, 62, double thread screw rod, 63, moving plate, 64, rotating plate, 65, slide bar, 7, left and right moving mechanism, 71, third motor, 72, screw rod, 73, moving block, 8, limiting mechanism, 81, limiting block, 82, limiting rod, 83, limiting disc. Specific implementation
[0033] The utility model makes further explanation in combination with the drawings and specific embodiment to help understanding the contents of the utility model.The method used in the utility model is conventional method if no special provision, and the raw material and device used are conventional market products if no special provision.
[0034] Reference Figures 1-4 The utility model provides an online size measuring device based on machine vision: including workbench 1, the upper surface fixed connection of workbench 1 has first installation frame 2, the upper of first installation frame 2 is provided with second installation frame 3, the upper of second installation frame 3 is provided with image acquisition mechanism 4, and the specific model of image acquisition mechanism 4 is Mech-Eye UHP-140 of Meikaman. The upper of workbench 1 is provided with rotating mechanism 5, and first installation frame 2 is connected through height adjusting mechanism 6 between second installation frame 3, and second installation frame 3 and image acquisition mechanism 4 are connected through left and right moving mechanism 7;Height adjusting mechanism 6 includes second motor 61, and the side wall fixed connection of first installation frame 2 has second motor 61, and the output of second motor 61 is fixedly connected with double thread screw rod 62, and the outer surface screw connection of double thread screw rod 62 has moving plate 63, and the number of moving plate 63 is two, and the upper surface movable mounting of moving plate 63 has rotating plate 64, and the end away from moving plate 63 of rotating plate 64 movable mounting has second installation frame 3, and second installation frame 3 and workbench 1 between are provided with limiting mechanism 8. The inner wall fixed connection of first installation frame 2 has slide bar 65, and slide bar 65 can further limit the movement of moving plate 63, and the outer surface of slide bar 65 is covered with moving plate 63.
[0035] When encountering a slightly larger size of parts, the image acquisition mechanism 4 can first shoot the lower part of the image of the part, then drive the double-thread screw rod 62 to rotate by controlling the second motor 61, and then drive the adjacent moving plates 63 to move closer to each other, and then the adjacent rotating plates 64 are deflected, and then the second mounting frame 3 and the image acquisition mechanism 4 are moved upward, and then the image acquisition mechanism 4 can shoot the upper part of the image of the part, and the lower and upper parts of the image are combined by using the background software to obtain the whole image of the part, so that the application range of the device is wider.
[0036] Further, the left and right moving mechanism 7 includes a third motor 71, the side wall of the second mounting frame 3 is fixedly connected with the third motor 71, the output end of the third motor 71 is fixedly connected with a screw rod 72, the outer surface of the screw rod 72 is threadedly connected with a moving block 73, and the upper surface of the moving block 73 is fixedly connected with the image acquisition mechanism 4. The third motor 71 can drive the screw rod 72 to rotate, and then drive the moving block 73 to move left and right, and then drive the image acquisition mechanism 4 to move left and right, so that when the position of the part is not in the range of the camera, the image acquisition range of the image acquisition mechanism 4 can also be increased by adjusting the position of the image acquisition mechanism 4.
[0037] The limiting mechanism 8 includes a limiting block 81, the number of the limiting block 81 is two, the side wall of the second mounting frame 3 is fixedly connected with the limiting block 81, the upper surface of the workbench 1 is fixedly connected with a limiting rod 82, and the limiting block 81 and the limiting rod 82 can cooperate to limit the up-down movement of the second mounting frame 3, so as to avoid the inclination of the second mounting frame 3 when moving up and down. The upper surface of the limiting rod 82 is fixedly connected with a limiting disc 83, and the limiting disc 83 can limit the upward movement distance of the second mounting frame 3.
[0038] The rotating mechanism 5 comprises a fixed seat 51, the upper surface of the workbench 1 is fixedly connected with the fixed seat 51, the inside of the fixed seat 51 is provided with a mounting groove 52, the inner bottom of the mounting groove 52 is fixedly connected with a first motor 53, the output end of the first motor 53 is fixedly connected with a first rotating shaft 54, the upper surface of the first rotating shaft 54 is fixedly connected with a rotating disc 55, the upper surface of the rotating disc 55 is fixedly connected with a rubber pad 59, when the size of the part needs to be measured, the part is placed on the rubber pad 59, the first motor 53 works to drive the first rotating shaft 54 and the rotating disc 55 to rotate, and then the part can be rotated to the shooting range of the image acquisition mechanism 4, the data is collected by photographing through the image acquisition mechanism 4, and after the collection is completed, the rotating disc 55 continues to rotate to drive the next part to move to the shooting range, so that the size measurement efficiency of the device on the part is greatly enhanced. The upper surface of the fixed seat 51 is fixedly connected with a limiting ring 56, the inside of the limiting ring 56 is provided with a ball groove 57, the ball groove 57 provides an installation position for the ball 58, the number of the ball groove 57 is multiple, the inside of the ball groove 57 is movably installed with the ball 58, the friction between the limiting ring 56 and the rotating disc 55 can be greatly reduced through the ball 58, the rotating disc 55 can rotate more smoothly, and the service life of the rotating disc 55 is increased; the outer surface of the limiting ring 56 is sleeved with the rotating disc 55, the friction between the limiting ring 56 and the rotating disc 55 can be greatly reduced through the ball 58, the rotating disc 55 can rotate more smoothly, and the service life of the rotating disc 55 is increased.
[0039] Working principle:
[0040] When the size of the part is slightly large, the image acquisition mechanism 4 can first shoot the lower part image of the part, then the second motor 61 is controlled to work to drive the double-threaded screw rod 62 to rotate, then the adjacent moving plates 63 are driven to move close to each other, then the adjacent rotating plates 64 are deflected, then the second mounting frame 3 and the image acquisition mechanism 4 are driven to move upwards, then the image acquisition mechanism 4 can shoot the upper part image of the part, and the whole part image can be obtained by superimposing the lower part image and the upper part image through the background software, so that the application range of the device is wider.
[0041] And the third motor 71 work can drive the screw rod 72 rotation, in turn drive the moving block 73 left and right movement, in turn can drive the image acquisition mechanism 4 left and right movement, in turn when the need for parts position is not in the camera range also can through the adjustment image acquisition mechanism 4 position to increase the image acquisition mechanism 4 image acquisition range, when the need to measure the size of the parts, the parts are placed on the rubber pad 59, the first motor 53 work can drive the first shaft 54 and rotating disc 55 rotation, in turn can be rotated to the image acquisition mechanism 4 shooting range, through the image acquisition mechanism 4 photographing collection data, after the collection rotating disc 55 continues to rotate drive the next part moves to the shooting range, can let the device on the size measurement efficiency of parts greatly enhanced.
[0042] In the description of the present application, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "intermediate" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application.
[0043] The above-mentioned is only a specific embodiment of the present application, and cannot limit the scope of the present application, so the replacement of equivalent components or equivalent changes and modifications made in the scope of the present application patent protection should still belong to the scope covered by the claims of the present application.
Claims
1. An online machine vision based dimension measuring device comprising a work table (1), characterized in that: The upper surface of the workbench (1) is fixedly connected with a first mounting frame (2), the upper portion of the first mounting frame (2) is provided with a second mounting frame (3), the upper portion of the second mounting frame (3) is provided with an image acquisition mechanism (4), the upper portion of the workbench (1) is provided with a rotating mechanism (5), the first mounting frame (2) and the second mounting frame (3) are connected through a height adjusting mechanism (6), the second mounting frame (3) and the image acquisition mechanism (4) are connected through a left-right moving mechanism (7); The height adjusting mechanism (6) comprises a second motor (61), the side wall of the first mounting frame (2) is fixedly connected with the second motor (61), the output end of the second motor (61) is fixedly connected with a double-threaded screw rod (62), the outer surface of the double-threaded screw rod (62) is threadedly connected with a moving plate (63), the number of the moving plate (63) is two, the upper surface of the moving plate (63) is movably provided with a rotating plate (64), the end, away from the moving plate (63), of the rotating plate (64) is movably provided with the second mounting frame (3), and the second mounting frame (3) and the workbench (1) are provided with a limiting mechanism (8).
2. The machine vision-based online dimensional measurement device of claim 1, wherein: The inner wall of the first mounting frame (2) is fixedly connected with a sliding rod (65), and the outer surface of the sliding rod (65) is sleeved with the moving plate (63).
3. The machine vision-based online dimensional measurement apparatus of claim 1, wherein: The left-right moving mechanism (7) comprises a third motor (71), the side wall of the second mounting frame (3) is fixedly connected with the third motor (71), the output end of the third motor (71) is fixedly connected with a screw rod (72), the outer surface of the screw rod (72) is threadedly connected with a moving block (73), and the upper surface of the moving block (73) is fixedly connected with the image acquisition mechanism (4).
4. The machine vision-based online dimensional measurement apparatus of claim 1, wherein: The limiting mechanism (8) comprises a limiting block (81), the number of the limiting block (81) is two, the side wall of the second mounting frame (3) is fixedly connected with the limiting block (81), the upper surface of the workbench (1) is fixedly connected with a limiting rod (82), and the upper surface of the limiting rod (82) is fixedly connected with a limiting disc (83).
5. The machine vision-based online dimensional measurement apparatus of claim 1, wherein: The rotating mechanism (5) comprises a fixed seat (51), the upper surface of the workbench (1) is fixedly connected with the fixed seat (51), the inside of the fixed seat (51) is provided with a mounting groove (52), the inner bottom of the mounting groove (52) is fixedly connected with a first motor (53), the output end of the first motor (53) is fixedly connected with a first rotating shaft (54), the upper surface of the first rotating shaft (54) is fixedly connected with a rotating disc (55), and the upper surface of the rotating disc (55) is fixedly connected with a rubber pad (59).
6. An on-line machine vision-based dimension measuring apparatus according to claim 5, characterized in that: The upper surface of the fixed seat (51) is fixedly connected with a limiting ring (56), the inside of the limiting ring (56) is provided with a ball groove (57), the number of the ball groove (57) is plurality, the inside of the ball groove (57) is movably provided with a ball (58), and the outer surface of the limiting ring (56) is sleeved with the rotating disc (55).