A mobile gantry image measuring instrument

Abstract

The utility model belongs to the field of image measurement technology, specifically is a kind of mobile gantry image measuring instrument, it includes marble platform, detection platform, movable gantry mechanism, optical mechanism and bottom lamp illumination system.Detection platform is fixed on marble platform, Y axis drive beam is slidably connected with first linear guide rail, movable gantry mechanism is connected with Y axis drive beam by support column, optical mechanism and bottom lamp realize synchronous motion by steel wire rope.Equipment is additionally provided with auxiliary guide rail, transport fixing block and limit sensing system, and the stability, transport safety and detection accuracy are improved.The application can expand the detection range, improve the measurement accuracy and operation convenience, and is suitable for the high-precision image measurement needs of various industrial scenes.

Description

Technical Field

[0001] This utility model belongs to the field of image measurement technology, specifically a mobile gantry image measuring instrument. Background Technology

[0002] In the field of image measurement, traditional image measuring instruments typically employ a structural design where the optical mechanism is fixed and the detection platform moves to a position below the optical mechanism for detection.

[0003] While this design can meet some measurement needs, the limited range of motion of the inspection platform restricts the size of the inspected products, making it difficult to adapt to the measurement requirements of large workpieces. To address this issue, some devices have adopted a design with movable optical mechanisms, but this improvement often comes at the cost of reduced equipment stability and inspection accuracy, especially in high-precision measurement scenarios, where its performance is often unsatisfactory.

[0004] Furthermore, existing image measurement equipment has certain shortcomings in terms of illumination uniformity. Insufficient or excessive light in certain areas may lead to missed detections or misjudgments, thus affecting detection efficiency and the accuracy of results. At the same time, it is difficult to guarantee the axial alignment between the optical system and the base lamp, which further affects the detection effect.

[0005] Therefore, a mobile gantry image measuring instrument is proposed to address the above problems. Summary of the Invention

[0006] In order to overcome the shortcomings of the existing technology and solve at least one of the technical problems mentioned in the background technology, this utility model proposes a mobile gantry image measuring instrument.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The mobile gantry image measuring instrument of this utility model includes: a marble platform, a detection platform, a movable gantry mechanism, an optical mechanism, and a bottom lighting system. The detection platform is fixedly installed on the marble platform. The movable gantry mechanism consists of a support column and an X-axis crossbeam. The bottom of the support column is fixedly connected to a movable Y-axis drive beam, and the top is supported by an X-axis crossbeam. The optical mechanism is slidably connected to the X-axis crossbeam through a Z-axis motion mechanism.

[0008] Furthermore, it also includes a Y-axis motion mechanism, which includes a first linear guide rail and a first auxiliary guide rail. The Y-axis drive beam is slidably connected to the first linear guide rail and the first auxiliary guide rail, and the first auxiliary guide rail is disposed between the first linear guide rail.

[0009] Furthermore, it also includes a third linear guide rail, a bottom light mounting plate, a steel wire rope, and multiple drive wheels. The bottom light mounting plate is slidably connected to the Y-axis drive beam through the third linear guide rail, and the steel wire rope is wound around multiple drive wheels and drives the bottom light mounting plate to move synchronously with the optical mechanism.

[0010] Furthermore, the multiple transmission wheels include a first transmission wheel, a second transmission wheel, a third transmission wheel, and a fourth transmission wheel located at the four corners of one side of the movable gantry mechanism. The wire rope is wound around the first transmission wheel, the second transmission wheel, the third transmission wheel, and the fourth transmission wheel. A first auxiliary wheel is also provided next to the second and third transmission wheels, and a second auxiliary wheel is also provided next to the first transmission wheel and / or the fourth transmission wheel.

[0011] Furthermore, it also includes an X-axis motion mechanism, which includes a second linear guide rail, a second auxiliary guide rail, a first grating ruler, and a first reading head. The second linear guide rail and the second auxiliary guide rail are fixed on two adjacent surfaces of the X-axis beam. The L-shaped slide plate is slidably connected to the second linear guide rail and the second auxiliary guide rail via a slider. The first grating ruler is fixed on the X-axis beam, and the first reading head is set on the L-shaped slide plate.

[0012] Furthermore, it also includes a first photoelectric sensor and a first sensing baffle. The first photoelectric sensor is installed at both ends of the X-axis crossbeam, and the first sensing baffle is installed on both sides of the L-shaped slide plate.

[0013] Furthermore, it also includes a limiting and sensing system, which includes a second photoelectric sensor, a second sensing baffle, a second grating ruler, and a second reading head. The second photoelectric sensor is disposed on the marble platform along the direction of the first linear guide rail, the second sensing baffle is disposed on the Y-axis drive beam, the second grating ruler is disposed on the marble platform along the Y-axis direction, and the second reading head is disposed on the Y-axis drive beam.

[0014] Furthermore, it also includes a transport fixing device, which includes a Y-axis transport fixing block and an X-axis transport fixing block. The Y-axis transport fixing block is located on one or both sides of the Y-axis drive beam, and the X-axis transport fixing block is located on one side of the L-shaped slide plate.

[0015] The beneficial effects of this utility model are: This utility model provides a mobile gantry image measuring instrument to improve equipment stability: auxiliary guide rails are added to the Y-axis motion mechanism and X-axis motion mechanism, and the overall stability of the equipment is effectively improved through multi-point support, reducing measurement errors caused by mechanical vibration; Enhanced transportation safety: Added Y-axis and X-axis transportation fixing blocks to lock key components during transportation, preventing equipment damage caused by vibration or collision and extending the service life of the equipment; Improved detection accuracy: The optical mechanism and the bottom light are moved synchronously by a steel wire rope, keeping their axes aligned, thereby improving the detection effect and reducing measurement errors caused by axis deviation; Extended inspection range: The movable gantry mechanism design overcomes the limitation of the inspection range of traditional image measuring instruments, enabling it to adapt to larger-sized products and meet the needs of diverse industrial scenarios. Optimized user experience: Through the combination of limit switches and sensing systems, precise control of the equipment's movement distance is achieved, simplifying the operation process, improving detection efficiency, and lowering the technical threshold for operators; In summary, the mobile gantry image measuring instrument provided by this invention has the advantages of compact structure, high stability, wide detection range, and convenient operation, and is suitable for high-precision image measurement needs in various industrial scenarios. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0017] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the Y-axis motion mechanism and the bottom light illumination system of the present invention; Figure 3 This is a schematic diagram of the movable gantry mechanism and transmission system of the present invention; Figure 4 This is a schematic diagram of the X-axis motion mechanism and optical mechanism of the present invention; Figure 5 This is a schematic diagram of the limiting and sensing system and the transport fixing device of the present invention.

[0018] Legend: 1. Marble platform; 2. Inspection platform; 3. Movable gantry mechanism; 4. Optical mechanism; 5. Y-axis drive beam; 6. First linear guide rail; 7. First auxiliary guide rail; 8. Third linear guide rail; 9. Bottom light mounting plate; 10. Bottom light; 11. Support column; 12. X-axis crossbeam; 13. First transmission wheel; 14. Second transmission wheel; 15. Third transmission wheel; 16. Fourth transmission wheel; 17. First auxiliary wheel; 18. Second auxiliary wheel; 19. 20. Steel wire rope; 21. Second linear guide rail; 22. Second auxiliary guide rail; 23. L-shaped sliding plate; 24. Z-axis motion mechanism; 25. First photoelectric sensor; 26. First induction baffle; 27. First grating ruler; 28. First reading head; 29. ​​Y-axis transport fixing block; 30. X-axis transport fixing block; 31. Steel wire clamping fixture; 32. Second grating ruler; 33. Second reading head; 34. Second photoelectric sensor; 35. Second induction baffle. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Specific implementation examples are given below.

[0021] Please see Figures 1-5 This utility model provides a mobile gantry image measuring instrument, including a marble platform 1, a detection platform 2, a movable gantry mechanism 3, an optical mechanism 4, and a bottom lighting system. The marble platform 1, serving as the basic support of the entire device, is made of high-rigidity material, effectively reducing vibration interference during operation and ensuring measurement accuracy. The detection platform 2 is fixedly installed on the marble platform 1 and is made of transparent glass, allowing light to pass through and thus enabling image acquisition of the measured object. A Y-axis drive beam 5 is located below the detection platform 2, which is slidably connected to the Y-axis motion mechanism, enabling precise movement in the Y-axis direction. The specific structure of the Y-axis motion mechanism is as follows... Figure 2 As shown, it includes two first linear guide rails 6 and one or more first auxiliary guide rails 7. The first linear guide rails 6 are fixed on the marble platform 1 to provide guidance in the Y-axis direction. The first auxiliary guide rails 7 are set between the two first linear guide rails 6 to improve the stability of the Y-axis drive beam 5 by adding additional support points.

[0022] The movable gantry mechanism 3 consists of two supporting columns 11 and an X-axis crossbeam 12. The bottom of the supporting columns 11 is fixedly connected to the Y-axis drive beam 5, and the top is supported by the X-axis crossbeam 12. The design of the supporting columns 11 gives the entire gantry mechanism high rigidity and stability, enabling it to adapt to a wide range of movement requirements. The X-axis crossbeam 12 is equipped with an X-axis motion mechanism, the specific structure of which is as follows: Figure 3 As shown, the system includes two second linear guide rails 20 and one second auxiliary guide rail 21. All three rails are fixed to the X-axis beam 12 to provide guidance in the X-axis direction. An L-shaped slide plate 22 is slidably connected to the second linear guide rails 20 and the second auxiliary guide rail 21 via a slider, enabling movement in the X-axis direction. A Z-axis motion mechanism 23 is mounted on one side of the L-shaped slide plate 22, and an optical mechanism 4 is slidably connected to the Z-axis motion mechanism 23 for performing high-precision image measurement tasks. The design of the Z-axis motion mechanism 23 allows the optical mechanism 4 to flexibly adjust its position in the vertical direction, thus adapting to objects of different heights.

[0023] The synchronized movement of the optical mechanism 4 and the bottom lamp 10 is one of the important technical features of this invention. For example... Figure 2 and Figure 3 As shown, a first transmission wheel 13, a second transmission wheel 14, a third transmission wheel 15, and a fourth transmission wheel 16 are respectively installed at the four corners of one side of the movable gantry mechanism 3. A steel wire rope 19 is wound around the transmission wheels to drive the optical mechanism 4 and the base lamp 10 to move synchronously. A first auxiliary wheel 17 is also provided next to the second transmission wheel 14 and the third transmission wheel 15 to guide the direction of the steel wire rope 19; a second auxiliary wheel 18 is also provided next to the first transmission wheel 13 and / or the fourth transmission wheel 16 to adjust the tension of the steel wire rope 19, preventing it from becoming slack or overly tensile during operation. The steel wire rope 19 passes through the L-shaped sliding plate 22 and the base lamp mounting plate 9, and is fixed by a steel wire clamping fixture 30 to ensure the alignment of the optical mechanism 4 and the base lamp 10 during movement. The base lamp 10 is mounted on the base lamp mounting plate 9, which is slidably connected to the Y-axis drive beam 5 via a third linear guide rail 8 and a slider, allowing it to move synchronously with the optical mechanism 4 in the Y-axis direction. The bottom light 10 provides a uniform lighting environment for the detection platform 2, avoiding detection omissions or misjudgments caused by insufficient or excessive local light, thereby improving detection efficiency.

[0024] To further improve the ease of operation and safety of the equipment, this invention designs a comprehensive limit and sensing system. For example... Figure 4 and Figure 5As shown, multiple second photoelectric sensors 33 are provided on the marble platform 1 along the direction of the first linear guide rail 6, and corresponding second sensing baffles 34 are provided on the Y-axis drive beam 5. The two work together to limit the movement range of the Y-axis drive beam 5. A second grating ruler 31 is also provided on the marble platform 1 along the Y-axis direction, and a second reading head 32 is provided on the Y-axis drive beam 5 to precisely control the movement distance of the movable gantry mechanism 3. First photoelectric sensors 24 are installed at both ends of the X-axis crossbeam 12, and a first sensing baffle 25 is installed on each side of the L-shaped slide plate 22. The two work together to limit the movement of the optical mechanism 4. A first grating ruler 26 is fixedly provided on one side of the X-axis crossbeam 12, and a first reading head 27 is provided on the L-shaped slide plate 22 to control the movement distance of the optical mechanism 4. The cooperation of the first grating ruler 26 and the first reading head 27 realizes the precise positioning of the optical mechanism 4 in the X-axis direction, meeting the requirements of high-precision image measurement.

[0025] The design of the transport fixing device is another important technical feature of this invention. During transportation, Y-axis transport fixing blocks 28 are provided on one or both sides of the Y-axis drive beam 5, and X-axis transport fixing blocks 29 are provided on one side of the L-shaped slide plate 22. These lock the movable gantry mechanism 3 and the optical mechanism 4 respectively, ensuring the safety and stability of the equipment during transportation. The design of the transport fixing device effectively solves the problem of component displacement caused by vibration or impact during long-distance transportation, extending the service life of the equipment.

[0026] The working principle of this invention is as follows: When image measurement of the object to be measured is required, the object is first placed on the detection platform 2. After the equipment is started, the Y-axis drive beam 5 slides along the first linear guide rail 6 and the first auxiliary guide rail 7 via the Y-axis motion mechanism, driving the movable gantry mechanism 3 to move to a suitable position in the Y-axis direction. Subsequently, the L-shaped slide plate 22 slides along the second linear guide rail 20 and the second auxiliary guide rail 21 via the X-axis motion mechanism, driving the optical mechanism 4 to move to the target position in the X-axis direction. The Z-axis motion mechanism 23 is responsible for adjusting the position of the optical mechanism 4 in the vertical direction, aligning it with the area to be measured of the object. While the optical mechanism 4 moves, the steel wire rope 19 drives the bottom light 10 to move synchronously along the third linear guide rail 8, ensuring that the bottom light 10 and the axis of the optical mechanism 4 are aligned, thereby providing a uniform lighting environment. The cooperation of the first grating ruler 26 with the first reading head 27 and the second grating ruler 31 with the second reading head 32 enables precise positioning of the optical mechanism 4 in the X and Y axes. The cooperation of the first photoelectric sensor 24 with the first sensing baffle 25 and the second photoelectric sensor 33 with the second sensing baffle 34 limits the movement range of the optical mechanism 4 in the X and Y axes, preventing it from exceeding the preset range. After the measurement is completed, the device automatically returns to the initial position, ready for the next measurement.

[0027] In practical applications, the mobile gantry image measuring instrument of this invention is suitable for high-precision image measurement needs in various industrial scenarios. For example, in the electronics manufacturing industry, it can be used to inspect the solder joint quality of circuit boards; in the automotive manufacturing industry, it can be used to measure the dimensional accuracy of parts; and in the aerospace field, it can be used to analyze the surface morphology of complex curved parts. The device has a compact overall structure, is easy to operate, and can significantly improve inspection efficiency and measurement accuracy, while expanding the inspection range of traditional image measuring instruments and meeting the needs of diverse industrial scenarios.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A mobile gantry image measuring instrument, characterized in that, include: The marble platform (1), the inspection platform (2), the movable gantry mechanism (3), the optical mechanism (4) and the bottom lighting system are provided. The inspection platform (2) is fixedly installed on the marble platform (1). The movable gantry mechanism (3) consists of a support column (11) and an X-axis crossbeam (12). The bottom of the support column (11) is fixedly connected to the movable Y-axis drive beam (5), and the top is supported by the X-axis crossbeam (12). The optical mechanism (4) is slidably connected to the X-axis crossbeam (12) through the Z-axis motion mechanism (23).

2. The mobile gantry image measuring instrument according to claim 1, characterized in that: It also includes a Y-axis motion mechanism, which includes a first linear guide (6) and a first auxiliary guide (7). The Y-axis drive beam (5) is slidably connected to the first linear guide (6) and the first auxiliary guide (7). The first auxiliary guide (7) is arranged between the first linear guide (6).

3. The mobile gantry image measuring instrument according to claim 2, characterized in that: It also includes a third linear guide (8), a bottom lamp mounting plate (9), a steel wire rope (19), and multiple drive wheels. The bottom lamp mounting plate (9) is slidably connected to the Y-axis drive beam (5) through the third linear guide (8). The steel wire rope (19) is wound around multiple drive wheels and drives the bottom lamp mounting plate (9) and the optical mechanism (4) to move synchronously.

4. The mobile gantry image measuring instrument according to claim 3, characterized in that: Multiple drive wheels include a first drive wheel (13), a second drive wheel (14), a third drive wheel (15), and a fourth drive wheel (16) located at the four corners of one side of the movable gantry mechanism (3). A wire rope (19) is wound around the first drive wheel (13), the second drive wheel (14), the third drive wheel (15), and the fourth drive wheel (16). A first auxiliary wheel (17) is also provided next to the second drive wheel (14) and the third drive wheel (15). A second auxiliary wheel (18) is also provided next to the first drive wheel (13) and / or the fourth drive wheel (16).

5. The mobile gantry image measuring instrument according to claim 1, characterized in that: It also includes an X-axis motion mechanism, which includes a second linear guide (20), a second auxiliary guide (21), a first grating ruler (26), and a first reading head (27). The second linear guide (20) and the second auxiliary guide (21) are fixed on two adjacent surfaces of the X-axis beam (12). The L-shaped slide plate (22) is slidably connected to the second linear guide (20) and the second auxiliary guide (21) through a slider. The first grating ruler (26) is fixed on the X-axis beam (12), and the first reading head (27) is set on the L-shaped slide plate (22).

6. The mobile gantry image measuring instrument according to claim 5, characterized in that: It also includes a first photoelectric sensor (24) and a first sensing baffle (25). The first photoelectric sensor (24) is installed at both ends of the X-axis beam (12), and the first sensing baffle (25) is installed on both sides of the L-shaped slide plate (22).

7. The mobile gantry image measuring instrument according to claim 1, characterized in that: It also includes a limit and sensing system, which includes a second photoelectric sensor (33), a second sensing baffle (34), a second grating ruler (31), and a second reading head (32). The second photoelectric sensor (33) is set on the marble platform (1) along the direction of the first linear guide rail (6), the second sensing baffle (34) is set on the Y-axis drive beam (5), the second grating ruler (31) is set on the marble platform (1) along the Y-axis direction, and the second reading head (32) is set on the Y-axis drive beam (5).

8. The mobile gantry image measuring instrument according to claim 1, characterized in that: It also includes a transport fixing device, which includes a Y-axis transport fixing block (28) and an X-axis transport fixing block (29). The Y-axis transport fixing block (28) is set on one or both sides of the Y-axis drive beam (5), and the X-axis transport fixing block (29) is set on one side of the L-shaped slide plate (22).

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