A machine vision measurement device

By introducing a lifting module and a two-way vision camera into the machine vision measurement device, the problem that existing devices can only scan vertically is solved, enabling comprehensive measurement of the top and sides of the product and obtaining more complete data.

CN224285820UActive Publication Date: 2026-05-26CHANGCHUN GUANGHUA UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGCHUN GUANGHUA UNIV
Filing Date
2025-07-22
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing machine vision measurement devices can only be set vertically and cannot scan the sides of products, resulting in incomplete measurement data that cannot meet usage requirements.

Method used

A machine vision measurement device was designed, comprising a measuring stage, a measuring turntable, a lifting module, and a vision camera. The height of the vision camera is adjusted by the lifting module, and combined with the horizontally and vertically set vision cameras, the product is measured from above and the side.

Benefits of technology

It enables comprehensive measurement of the top and sides of the product, obtaining more complete data and meeting usage requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a machine vision measurement device, comprising: a measuring platform, a measuring turntable rotatably mounted at the center of the measuring platform, a measuring frame slidably mounted on the measuring platform, and a vertically mounted vision camera at the lower end of the measuring frame; a measuring component, mounted on the measuring frame, for measuring the product from the side; the measuring component includes a lifting module, the lifting module including a measuring electric cylinder mounted on the measuring frame, the telescopic end of the measuring electric cylinder penetrating the measuring frame and mounted on a measuring lifting seat, a measuring guide rod slidably inserted on the measuring frame, the lower end of the measuring guide rod being fixedly connected to the upper end of the measuring lifting seat, and a measuring mounting seat fixed at the lower end of the measuring lifting seat; this utility model has a reasonable structure and can simultaneously scan the top and side of the product, thereby obtaining more complete data and better meeting the needs of users.
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Description

Technical Field

[0001] This utility model relates to the field of visual measurement technology, specifically a machine vision measurement device. Background Technology

[0002] Machine vision systems utilize machines to perform various measurements and judgments, replacing human eyes. It is an important branch of computer science, integrating technologies from optics, mechanics, electronics, and computer hardware and software, encompassing multiple fields such as computer science, image processing, pattern recognition, artificial intelligence, signal processing, and opto-mechatronics. Currently, machine vision systems can accurately measure the dimensions of product surfaces using their measuring devices.

[0003] For example, the utility model patent with authorization announcement number CN221528407U discloses a machine vision measurement device. This device uses a cylinder to drive a slider to slide on a second slide groove to adjust the position of the clamping plate and effectively clamp the object being measured. It is suitable for objects of different sizes and effectively prevents the object from falling off during measurement. The motor drives the base plate to move up and down, which enhances the measurement effect.

[0004] However, in actual use, the machine vision measurement device is usually set vertically, which can only scan the product from above and cannot scan the side of the product (so the height information of the product cannot be obtained). The measurement data is not perfect and cannot meet the usage requirements well. Summary of the Invention

[0005] The purpose of this invention is to provide a machine vision measurement device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A machine vision measuring device includes: a measuring platform, a measuring turntable rotatably mounted at the center of the measuring platform, a measuring frame slidably mounted on the measuring platform, and a vertically mounted vision camera at the lower end of the measuring frame; a measuring assembly mounted on the measuring frame for measuring a product from the side; the measuring assembly includes a lifting module, the lifting module including a measuring electric cylinder mounted on the measuring frame, the telescopic end of the measuring electric cylinder penetrating the measuring frame and mounted on a measuring lifting seat, a measuring guide rod slidably inserted on the measuring frame, the lower end of the measuring guide rod being fixedly connected to the upper end of the measuring lifting seat, a measuring mounting seat fixedly mounted at the lower end of the measuring lifting seat, and a horizontally mounted vision camera on the measuring mounting seat.

[0008] As a preferred embodiment, the measuring platform is further equipped with an adjustment assembly for moving the measuring frame. The adjustment assembly includes an adjustment slider fixed at the lower end of the measuring frame and a pair of auxiliary sliders. The auxiliary sliders are slidably installed in auxiliary grooves opened on the measuring platform, and the adjustment sliders are slidably installed in adjustment grooves opened at the upper end of the measuring platform. An adjustment screw is also rotatably installed in the adjustment grooves, and the adjustment sliders are threaded onto the adjustment screws. An adjustment motor is also installed on the measuring platform, and the output end of the adjustment motor is drivenly connected to the shaft end of the adjustment screw.

[0009] As a preferred embodiment, a rotary motor for driving the measuring turntable to rotate is also installed at the lower end of the measuring platform.

[0010] As a preferred embodiment, the measuring platform is also equipped with a feeding conveyor belt for transporting products to the measuring turntable.

[0011] As a preferred embodiment, the measuring platform is also equipped with a conveyor belt for transferring the product away.

[0012] As a preferred embodiment, the measuring frame is also equipped with a feeding assembly, which includes a feeding electric cylinder mounted on the measuring frame. The telescopic end of the feeding electric cylinder passes through the measuring frame and is fixed with a feeding push plate. A feeding guide rod is also slidably inserted on the measuring frame, and the end of the feeding guide rod is fixedly connected to the feeding push plate.

[0013] As a preferred embodiment, the end of the feeding pusher plate extends to a feeding guard plate.

[0014] As a preferred embodiment, the electric unloading cylinder is horizontally positioned.

[0015] Compared with existing technologies, the advantages of this invention are as follows: By placing the product on the measuring turntable, and then lowering the measuring lifting seat via a measuring electric cylinder, the height of the second vision camera is adjusted. After adjustment, the first vision camera can measure the product from above, obtaining its length and width data. The second vision camera can measure the product from the side, obtaining its height data, thus providing more comprehensive data to better meet user needs. This invention has a reasonable structure and can simultaneously scan the top and sides of the product, thereby acquiring more complete data and better meeting user requirements. Attached Figure Description

[0016] Figure 1 A first-view stereoscopic structural diagram of a machine vision measurement device;

[0017] Figure 2 A schematic diagram of the overall second-view stereo structure of a machine vision measurement device;

[0018] Figure 3 A first-view three-dimensional structural diagram of the measuring frame position of a machine vision measuring device;

[0019] Figure 4 This is a schematic diagram of the second-view three-dimensional structure at the measuring frame position of a machine vision measuring device.

[0020] In the diagram: 1. Measuring platform; 11. Feeding conveyor belt; 12. Unloading conveyor belt; 13. Measuring frame; 14. Auxiliary chute; 2. Rotary motor; 21. Measuring turntable; 3. Vision camera one; 4. Measuring assembly; 41. Measuring electric cylinder; 42. Measuring guide rod; 43. Measuring lifting seat; 44. Measuring mounting seat; 45. Vision camera two; 5. Unloading assembly; 51. Unloading electric cylinder; 52. Unloading guide rod; 53. Unloading push plate; 54. Unloading guard plate; 6. Adjustment assembly; 61. Auxiliary slider; 62. Adjusting slider; 63. Adjusting motor; 64. Adjusting screw. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: Please refer to Figures 1-4 A machine vision measuring device includes: a measuring platform 1, a measuring turntable 21 rotatably mounted at the center of the measuring platform 1, a rotary motor 2 for driving the measuring turntable 21 to rotate at the lower end of the measuring platform 1, a measuring frame 13 slidably mounted on the measuring platform 1, and a vertically arranged vision camera 3 mounted at the lower end of the measuring frame 13; a measuring component 4, mounted on the measuring frame 13, for measuring the product from the side; the measuring component 4 includes a lifting module, the lifting module including a measuring electric cylinder 41 mounted on the measuring frame 13, the telescopic end of the measuring electric cylinder 41 penetrating the measuring frame 13 and mounted on a measuring lifting seat 43, a measuring guide rod 42 slidably inserted on the measuring frame 13, the lower end of the measuring guide rod 42 being fixedly connected to the upper end of the measuring lifting seat 43, a measuring mounting seat 44 fixed at the lower end of the measuring lifting seat 43, and a horizontally arranged vision camera 45 mounted on the measuring mounting seat 44.

[0023] The working principle of this utility model is as follows: During measurement, the product is placed on the measuring turntable 21. Then, the measuring electric cylinder 41 pushes the measuring lifting seat 43 to move down, thereby adjusting the height of the second vision camera 45. After the adjustment is completed, the product can be measured from above by the first vision camera 3, thereby obtaining the length and width data of the product. The second vision camera 45 can measure the product from the side, thereby obtaining the height data of the product, thus obtaining more complete data and better meeting the usage requirements.

[0024] As a further embodiment, the measuring platform 1 is also equipped with an adjustment assembly 6 for moving the measuring frame 13. The adjustment assembly 6 includes an adjustment slider 62 fixed at the lower end of the measuring frame 13 and a pair of auxiliary sliders 61. The auxiliary sliders 61 are slidably installed in an auxiliary slide groove 14 opened on the measuring platform 1, and the adjustment sliders 62 are slidably installed in an adjustment slide groove opened at the upper end of the measuring platform 1. An adjustment screw 64 is also rotatably installed in the adjustment slide groove, and the adjustment slider 62 is threaded onto the adjustment screw 64. An adjustment motor 63 is also installed on the measuring platform 1, and the output end of the adjustment motor 63 is drivenly connected to the shaft end of the adjustment screw 64.

[0025] The working principle of the adjustment component 6 is as follows: During adjustment, the adjustment motor 63 is started, which drives the adjustment screw 64 to rotate, thereby causing the adjustment slider 62, which is threaded onto the adjustment screw 64, to move the measuring frame 13. By adjusting the forward and reverse rotation of the adjustment motor 63, the measuring frame 13 can be moved back and forth, thereby enabling the vision camera 1 3 and vision camera 2 45 to move back and forth, which facilitates better vision measurement work.

[0026] To facilitate product transport, the measuring platform 1 is also equipped with a loading conveyor belt 11 for transporting products to the measuring turntable 21, and a unloading conveyor belt 12 for transferring products away. The loading conveyor belt 11 facilitates the transport of products to the measuring turntable 21, and the unloading conveyor belt 12 facilitates the transfer of measured products away.

[0027] As a further embodiment, the measuring frame 13 is also equipped with a feeding assembly 5, which includes a feeding electric cylinder 51 mounted on the measuring frame 13. The telescopic end of the feeding electric cylinder 51 passes through the measuring frame 13 and is fixed with a feeding push plate 53. A feeding guide rod 52 is also slidably inserted on the measuring frame 13. The end of the feeding guide rod 52 is fixedly connected to the feeding push plate 53. A feeding guard plate 54 extends from the end of the feeding push plate 53. In this embodiment, the feeding electric cylinder 51 is horizontally arranged.

[0028] The working principle of the feeding component 5 is as follows: During feeding, the feeding electric cylinder 51 extends and pushes the feeding push plate 53 to move, thereby pushing the product to fall onto the feeding conveyor belt 12, and then transferring the measured product away, which improves the measurement efficiency and can better meet the usage requirements.

[0029] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

Claims

1. A machine vision measurement device, characterized in that, include: A measuring table (1) is provided, with a measuring turntable (21) rotatably mounted in the middle position of the measuring table (1). A measuring frame (13) is also slidably mounted on the measuring table (1). A vertically mounted visual camera (3) is installed at the lower end of the measuring frame (13). The measuring component (4) is mounted on the measuring frame (13) for measuring the product from the side; The measuring component (4) includes a lifting module, which includes a measuring electric cylinder (41) mounted on a measuring frame (13). The telescopic end of the measuring electric cylinder (41) passes through the measuring frame (13) and is mounted on a measuring lifting seat (43). A measuring guide rod (42) is also slidably inserted on the measuring frame (13). The lower end of the measuring guide rod (42) is fixedly connected to the upper end of the measuring lifting seat (43). A measuring mounting seat (44) is fixedly mounted on the lower end of the measuring lifting seat (43). A horizontally set visual camera (45) is mounted on the measuring mounting seat (44).

2. The machine vision measurement device according to claim 1, characterized in that: The measuring platform (1) is also equipped with an adjustment assembly (6) for moving the measuring frame (13). The adjustment assembly (6) includes an adjustment slider (62) fixed at the lower end of the measuring frame (13) and a pair of auxiliary sliders (61). The auxiliary sliders (61) are slidably installed in the auxiliary slide groove (14) opened on the measuring platform (1). The adjustment sliders (62) are slidably installed in the adjustment slide groove opened at the upper end of the measuring platform (1). An adjustment screw (64) is also rotatably installed in the adjustment slide groove. The adjustment sliders (62) are threaded onto the adjustment screw (64). An adjustment motor (63) is also installed on the measuring platform (1). The output end of the adjustment motor (63) is drivenly connected to the shaft end of the adjustment screw (64).

3. The machine vision measurement device according to claim 2, characterized in that: The measuring platform (1) is also equipped with a rotary motor (2) for driving the measuring turntable (21) to rotate.

4. The machine vision measurement device according to claim 3, characterized in that: The measuring platform (1) is also equipped with a feeding conveyor belt (11) for conveying products to the measuring turntable (21).

5. The machine vision measurement device according to claim 4, characterized in that: The measuring platform (1) is also equipped with a feeding conveyor belt (12) for transferring the product away.

6. The machine vision measurement device according to claim 5, characterized in that: The measuring frame (13) is also equipped with a feeding assembly (5), which includes a feeding electric cylinder (51) installed on the measuring frame (13). The telescopic end of the feeding electric cylinder (51) passes through the measuring frame (13) and is fixed with a feeding push plate (53). A feeding guide rod (52) is also slidably inserted on the measuring frame (13), and the end of the feeding guide rod (52) is fixedly connected to the feeding push plate (53).

7. The machine vision measurement device according to claim 6, characterized in that: The end of the feeding push plate (53) extends to a feeding guard plate (54).

8. The machine vision measurement device according to claim 7, characterized in that: The electric cylinder (51) for feeding is set horizontally.