Novel real-time height measuring device for water cutting
By using laser rangefinders and two-dimensional force sensors in the water cutting device, the movement and stress of the altitude measurement ring are directly detected and sensed, and the problems of complex transmission structure and lack of anti-collision and emergency stop in the prior art are solved, and high-precision and safe altitude measurement functions are achieved.
Patent Information
- Application Number
- CN202422174239.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-05
AI Technical Summary
The transmission structure of the existing real-time height measurement device for water cutting is complex and has many steps, which affects the measurement accuracy and lacks anti-collision emergency stop function.
The laser rangefinder is used to directly detect the moving distance of the height measurement ring, and the two-dimensional force sensor is used to sense the force that the height measurement ring is subjected to during the movement. When the impact occurs, it stops moving immediately to realize the anti-collision emergency stop function.
It simplifies the structure, improves measurement accuracy, and has anti-collision emergency stop function to ensure the safety and accuracy of the cutting process.
Smart Images
Figure CN223005498U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a novel real-time height measuring device for water jet cutting, belonging to the technical field of water jet cutting. Background Technique
[0002] Water jet cutting is to increase the pressure of ordinary tap water to 1000 - 4000 kg / cm2 after a pressurizing device, and then spray it through a nozzle with a diameter of about 0.1 - 0.4 mm to form a high-speed "water arrow" with a speed of 800 - 1000 m / s (about 3 times the speed of sound). Usually, we commonly call this high-speed water arrow the "water knife". Generally, the water knife is used to cut products such as ceramic tiles, glass, rock slabs, and stones.
[0003] When using the water knife to cut products, since the heights of different models of products and different areas of the same product are different, it is necessary to control the height between the tool head of the water knife and the workpiece during cutting so that the tool head of the water knife is at the most favorable height for cutting, and it is necessary to detect the working height of the workpiece in real time during cutting.
[0004] The prior art "Application No.: 2023210824233" discloses a real-time height measuring device for water jet cutting. By the up and down movement of the height measuring ring following the product, the first hinge and the second hinge can be driven to rotate through the bracket and the fixed plate, thereby driving the sector gear to rotate, and then driving the angular displacement sensor, so as to feedback the detected data to the controller of the water jet cutting machine tool, thereby realizing the real-time detection of the height of the workpiece to be cut. The above prior art has the following defects: the up and down movement of the height measuring ring needs to drive the first hinge and the second hinge to rotate through the bracket and the fixed plate, thereby driving the sector gear to rotate, and then driving the angular displacement sensor, so as to feedback the detected data to the controller of the water jet cutting machine tool. The transmission structure is complex, with many steps, which affects the measurement accuracy; at the same time, it does not have an anti-collision emergency stop function.
[0005] Therefore, how to provide a real-time height measuring device for water jet cutting with a simple structure, high measurement accuracy, and an anti-collision emergency stop function at the same time is the research purpose of the utility model. Content of the Utility Model
[0006] In view of the above deficiencies in the technology, the utility model provides a novel real-time height measuring device for water jet cutting. The up and down movement distance of the height measuring ring is directly detected by a laser rangefinder, with a simple structure and high measurement accuracy; the two-dimensional force sensor is used to sense the force received by the height measuring ring during movement. When the height measuring ring hits the product, the two-dimensional force sensor transmits the force information of the height measuring ring to the numerical control center to stop the movement.
[0007] In order to solve the problems of the prior art, the technical solutions adopted by the utility model are as follows:
[0008] A novel real-time height measuring device for water jet cutting, characterized in that: it includes a base, on which a laser rangefinder, a slide plate, a mounting plate and a cylinder are respectively provided. The mounting plate is provided with a liftable guide rod through a linear bearing. The guide rod is fixedly connected to the slide plate through a connecting seat. A spring is sleeved outside the guide rod. The top of the spring contacts the mounting plate, and the bottom contacts the connecting seat. One side of the slide plate is provided with a measuring plate used in conjunction with the laser rangefinder, and the other side is connected to the piston rod of the cylinder through a connecting plate. A two-dimensional force sensor is provided on the connecting plate. The bottom end of the guide rod is also connected with a height measuring ring.
[0009] Further, the slide plate is movably arranged on the base through a slider, the connecting seat is fixedly connected to the slide plate by bolts or welding, and the connecting seat is fixedly connected to the guide rod by welding.
[0010] Further, the mounting plate is fixedly arranged on the base by bolts or welding.
[0011] Further, the connecting plate and the measuring plate are fixedly connected to the slide plate by welding.
[0012] Further, a through hole for the guide rod to pass through is provided at the bottom of the base.
[0013] The beneficial effects of the present utility model are: 1. The up and down movement distance of the height measuring ring is directly detected by the laser rangefinder, with a simple structure and high measurement accuracy; 2. The force received by the height measuring ring during movement is sensed by the two-dimensional force sensor. When the height measuring ring hits the product, the two-dimensional force sensor transmits the force information of the height measuring ring to the numerical control center to stop moving, having an anti-collision emergency stop function. Description of the Drawings
[0014] Figure 1 is the front view of the present utility model.
[0015] Figure 2 is the side view of the present utility model.
[0016] Figure 3 is the top view of the height measuring ring of the present utility model.
[0017] Wherein: base 1, laser rangefinder 2, slide plate 3, mounting plate 4, cylinder 5, guide rod 6, connecting seat 7, spring 8, measuring plate 9, connecting plate 10, two-dimensional force sensor 11, height measuring ring 12. Detailed Implementation Modes
[0018] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the following combines the attached Figures 1-3 to further analyze the present utility model.
[0019] As Figures 1-3 shown, a novel real-time height measuring device for water cutting is characterized in that: it includes a base 1, on which a laser rangefinder 2, a slide plate 3, a mounting plate 4 and a cylinder 5 are respectively arranged. The mounting plate 4 is provided with a liftable guide rod 6 through a linear bearing. The guide rod 6 is fixedly connected to the slide plate 3 through a connecting seat 7. A spring 8 is sleeved outside the guide rod 6. The top of the spring 8 contacts the mounting plate 4, and the bottom contacts the connecting seat 7, which is used to push the guide rod 6 to move downward. A measuring plate 9 used in cooperation with the laser rangefinder 2 is arranged on one side of the slide plate 3, and the other side is connected to the piston rod of the cylinder 5 through a connecting plate 10. A two-dimensional force sensor 11 is arranged on the connecting plate 10. The bottom end of the guide rod 6 is also connected with a height measuring ring 12. When the height measuring ring 12 encounters an impact during movement, the force information is transmitted to the two-dimensional force sensor 11 through the guide rod 6, the slide plate 3 and the connecting plate 10, and the two-dimensional force sensor 11 transmits the force information to the numerical control center of the water cutting device to control the height measuring ring 12 to stop moving.
[0020] In this embodiment, preferably, the slide plate 3 is arranged on the base 1 so as to be movable up and down through a slider. The connecting seat 7 is fixedly connected to the slide plate 3 by bolts or welding, and the connecting seat 7 is fixedly connected to the guide rod 6 by welding.
[0021] In this embodiment, preferably, the mounting plate 4 is fixedly arranged on the base 1 by bolts or welding.
[0022] In this embodiment, preferably, the connecting plate 10 and the measuring plate 9 are fixedly connected to the slide plate 3 by welding.
[0023] In this embodiment, preferably, a through hole for the guide rod 6 to pass through is provided at the bottom of the base 1.
[0024] Working principle of the utility model: When the height of the product is measured by using the height measuring ring 12, the cylinder 5 has no movement at this time. The height measuring ring 12 descends to the lowest position under the elastic force of the spring 8. The height measuring ring 12 moves along with the product. When the height measuring ring 12 moves up and down with the plane height of the product, the measuring plate 9 is driven to rise and fall through the guide rod 6 and the sliding plate 3. Then, the laser rangefinder 2 measures the rise and fall of the measuring plate 9, so as to realize the real-time detection of the moving height of the height measuring ring 12. When the height measuring ring 12 moves and impacts the product, the two-dimensional force sensor 11 transmits the force information of the height measuring ring 12 to the numerical control center, and the movement stops; when the height measurement of the product is completed, under the action of the spring 8, the guide rod 6 and the height measuring ring 12 are pushed down so that the height measuring ring 12 returns to the original position, which is convenient for the height measurement of the next product. When height measurement is not required, the cylinder 5 is started, and the piston rod of the cylinder 5 drives the connecting plate 10 to rise, driving the height measuring ring 12 to rise and compressing the spring 8, so that the spring 8 can push the height measuring ring 12 downward to the height measurement position during height measurement.
[0025] The technical solutions provided in this application have been introduced in detail above. In this article, embodiments are used to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application; at the same time, for those of ordinary skill in the art, according to the idea of this application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to this application.
Claims
1. A new type of real-time height measuring device for water jet cutting, characterized by: The utility model comprises a base, on which a laser rangefinder, a slide plate, a mounting plate and a cylinder are respectively arranged, the mounting plate is provided with a liftable guide rod through a linear bearing, the guide rod is fixedly connected to the slide plate through a connecting seat, a spring is sleeved on the outer side of the guide rod, the top end of the spring contacts the mounting plate, and the bottom end contacts the connecting seat, one side of the slide plate is provided with a measuring plate used in combination with the laser rangefinder, and the other side is connected to the piston rod of the cylinder through a connecting plate, the connecting plate is provided with a two-dimensional force sensor, and the bottom end of the guide rod is also connected to a height measuring ring.
2. According to claim 1, a novel real-time height measuring device for water jet cutting is characterized in that: The slide plate is movably arranged on the base via a slider, the connecting seat is fixedly connected to the slide plate via bolts or welding, and the connecting seat is fixedly connected to the guide rod via welding.
3. According to claim 1, a novel real-time height measuring device for water jet cutting is characterized in that: The mounting plate is fixed on the base by means of bolts or welding.
4. According to claim 1, a novel real-time height measuring device for water jet cutting is characterized in that: The connecting plate and the measuring plate are fixedly connected to the sliding plate by welding.
5. According to claim 1, a novel real-time height measuring device for water jet cutting is characterized in that: The bottom of the base is provided with a through hole for the guide rod to pass through.