Efficient flatness detection device
By designing an efficient detection device for laser sensors to sense multiple point distances, the problems of low planarity detection efficiency and part damage in die casting are solved, and fast and accurate detection is achieved, ensuring product quality.
Patent Information
- Application Number
- CN202323654749.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-31
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-31
AI Technical Summary
In die casting production, the prior art is used for low flatness detection efficiency and easily leads to damage to the parts to be tested, and unrecognized defects exist.
An efficient detection device including a frame, a detection substrate, a carrier plate, a roof plate and a laser sensor is designed. The laser sensor senses multiple point distances on the surface of the part to be tested to form a fitting plane to determine whether the part is qualified or not. Avoid contact detection with parts.
Improves detection efficiency, avoids damage caused by contact, ensures product quality, and facilitates parts pick-up and placement and assembly of devices.
Smart Images
Figure CN222211605U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of flatness detection, in particular to a high-efficiency flatness detection device. Background Art
[0002] Die casting is a process that uses a pressure casting mechanical die casting machine equipped with a casting mold to pour heated liquid metals such as copper, zinc, aluminum or aluminum alloy into the feed port of the die casting machine, and then die-casts the copper, zinc, aluminum parts or aluminum alloy parts of the shape and size limited by the mold through the die casting machine. During the die casting production process, the flatness of the die casting parts is deformed and fails to meet the technical requirements, which is one of the defects that often occur in die casting production. Therefore, in the later stage of die casting production, it is necessary to detect the flatness of the die castings to ensure the product quality, and it is necessary to detect the flatness of the die-casting products to screen out defective products. In the prior art, the flatness is generally detected by camera imaging or multi-point detection by probes one by one, which has problems such as low detection efficiency and easy secondary damage to the product. Utility Model Content
[0003] The main purpose of the utility model is to provide an efficient flatness detection device, which not only improves the detection efficiency, but also avoids the situation where the parts cannot be identified due to damage during the detection process caused by contact with the parts to be detected, thereby ensuring the quality of the products after detection.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an efficient flatness detection device for detecting parts to be tested, comprising: a frame, a detection substrate installed on the upper part of the frame, and a bottom substrate installed on the frame and located below the detection substrate, a carrier plate for placing the parts to be tested and a top plate are arranged in sequence directly above the detection substrate, the detection substrate and the carrier plate are connected by at least two first equal-height columns, the top plate and the carrier plate are connected by at least two second equal-height columns, a plurality of vertically extending support plates are installed at intervals on the lower surface of the top plate, a laser sensor is installed on the side surface of each of the support plates connected to the top plate at the upper end, and the emitting end of each of the laser sensors is facing the upper surface of the part to be tested on the carrier plate, for sensing the distance value between the upper surface of the part to be tested.
[0005] The further improved scheme in the above technical scheme is as follows:
[0006] 1. In the above scheme, the upper surface of the detection substrate is connected to the lower surface of the carrier plate by four first equi-height columns, and four corners on the upper surface of the carrier plate are respectively provided with a second equi-height column connected to the lower surface of the top plate, and the four second equi-height columns are all located on the inner side of the four first equi-height columns.
[0007] 2. In the above solution, three baffles are installed on the frame and located outside the carrier plate.
[0008] 3. In the above scheme, at least one of the baffles is rotatably mounted on the frame via at least two hinges arranged at intervals.
[0009] 4. In the above solution, 8 to 12 laser sensors are installed on the lower surface of the top plate through a support plate.
[0010] 5. In the above scheme, a reference calibration plate is provided on the upper surface of the bottom substrate. The reference calibration plate used to calibrate and reset the laser sensor has a thickness of 10.5 mm and a flatness of ±0.003 mm.
[0011] 6. In the above solution, the reference calibration plate is placed on the bottom substrate via four support seats arranged at its corners.
[0012] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:
[0013] The utility model is a highly efficient flatness detection device, wherein a plurality of vertically extending support plates are installed at intervals on the lower surface of the top plate, and a laser sensor is installed on the side surface of each support plate connected to the top plate at the upper end, and the emitting end of each laser sensor faces the upper surface of the part to be measured on the carrier plate, and is used to sense the distance value between the upper surface of the part to be measured, and can obtain multiple test point position data on the test surface of the part to be measured at the same time without contacting the part to be measured, which not only improves the detection efficiency, but also avoids the situation that the part cannot be identified due to damage during the detection process caused by contact with the part to be measured, and ensures various qualities of the detected product; in addition, the upper surface of the detection substrate is connected to the lower surface of the carrier plate by four first equi-height columns, and four corners on the upper surface of the carrier plate are respectively provided with a second equi-height column connected to the lower surface of the top plate, and the four second equi-height columns are all located on the inner side of the four first equi-height columns, which is convenient for assembling the first and second equi-height columns to ensure the flatness of the carrier plate itself, and provides a larger space for placing the part to be measured on the upper surface of the carrier plate, which is convenient for taking and placing the part to be measured. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the high-efficiency flatness detection device of the utility model;
[0015] Figure 2 It is a partial structural schematic diagram of the high-efficiency flatness detection device of the utility model;
[0016] Figure 3 It is a schematic diagram of the principle of the efficient flatness detection device of the utility model.
[0017] In the above figures: 100, part to be tested; 1, detection substrate; 2, carrier plate; 3, top plate; 41, first equal height column; 42, second equal height column; 5, support plate; 6, laser sensor; 8, reference calibration plate; 9, baffle; 10, hinge; 11, support seat; 12, frame; 13, bottom substrate. Implementation
[0018] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.
[0019] Embodiment 1: An efficient flatness detection device for detecting a part 100 to be detected, comprising: a frame 12, a detection substrate 1 installed on the upper part of the frame 12, and a bottom substrate 13 installed on the frame 12 and located below the detection substrate 1, characterized in that: a carrier plate 2 for placing the part 100 to be detected and a top plate 3 are sequentially arranged above the detection substrate 1, the detection substrate 1 and the carrier plate 2 are connected by at least two first equal-height columns 41, and the top plate 3 and the carrier plate 2 are connected by at least two second equal-height columns 42, a plurality of vertically extending support plates 5 are installed at intervals on the lower surface of the top plate 3, and a laser sensor 6 is installed on the side surface of each of the support plates 5 connected to the top plate 3 at the upper end, and the emitting end of each of the laser sensors 6 faces the upper surface of the part 100 to be detected on the carrier plate 2, and is used to sense the distance value between each to-be-detected point on the upper surface of the part 100 to be detected;
[0020] Control multiple laser sensors to work simultaneously, respectively collect the distance between them and each test point on the upper surface of the part to be tested, and form a fitting plane corresponding to the upper surface of the part to be tested based on the collected data, and judge whether the part to be tested is qualified by comparing with a preset threshold value, so as to obtain data of multiple test points on the surface of the part to be tested at the same time without contacting the part to be tested, which not only improves the efficiency of detection, but also avoids the situation in the prior art that the probe is damaged during the detection process due to contact with the part to be tested and cannot be identified, thereby ensuring the quality of the tested products.
[0021] Twelve laser sensors 6 are installed on the lower surface of the above-mentioned top plate 3 through the support plate 5; the upper surface of the above-mentioned detection substrate 1 is connected to the lower surface of the carrier plate 2 through four first equi-height columns 41, and the four corners of the upper surface of the above-mentioned carrier plate 2 are respectively provided with a second equi-height column 42 connected to the lower surface of the top plate 3, and the four second equi-height columns 42 are all located on the inner side of the four first equi-height columns 41, which is convenient for assembling the first and second equi-height columns to ensure the flatness of the carrier plate itself, and provides a larger space for placing the parts to be tested on the upper surface of the carrier plate, which is convenient for taking and placing the parts to be tested.
[0022] Embodiment 2: An efficient flatness detection device, used for detecting a part 100 to be detected, comprises: a frame 12, a detection substrate 1 installed on the upper part of the frame 12, and a bottom substrate 13 installed on the frame 12 and located below the detection substrate 1, characterized in that: a carrier plate 2 for placing the part 100 to be detected and a top plate 3 are arranged in sequence above the detection substrate 1, the detection substrate 1 is connected to the carrier plate 2 by at least two first equal-height columns 41, and the top plate 3 is connected to the carrier plate 2 by at least two second equal-height columns 42, and a plurality of vertically extending support plates 5 are installed at intervals on the lower surface of the top plate 3, and a laser sensor 6 is installed on the side surface of each of the support plates 5 connected to the top plate 3 at the upper end, and the emitting end of each of the laser sensors 6 is facing the upper surface of the part 100 to be detected on the carrier plate 2, and is used to sense the distance value between each measured point on the upper surface of the part 100 to be detected.
[0023] Three baffles 9 are installed on the frame 12 and outside the carrier plate 2; at least one of the baffles 9 is rotatably installed on the frame 12 through at least two hinges 10 arranged at intervals;
[0024] Twelve laser sensors 6 are mounted on the lower surface of the top plate 3 through the support plate 5; a reference calibration plate 8 is provided on the upper surface of the bottom substrate 13, and the reference calibration plate 8 used for calibrating and resetting the laser sensor 6 has a thickness of 10.5 mm and a flatness of ±0.003 mm. Before testing the parts to be tested, the reference calibration plate is placed on the upper surface of the carrier plate to calibrate and reset each laser sensor and the lower laser sensor;
[0025] The above-mentioned reference check plate 8 is placed on the bottom substrate 13 through four support seats 11 arranged at its corners;
[0026] The above-mentioned part 100 to be tested is an aluminum alloy die-casting; the above-mentioned part 100 to be tested is a heat sink of a new energy vehicle;
[0027] The laser sensor 6 is a Lanbao HL-G103-SJ laser ranging displacement sensor with a measuring distance of 30 mm, a measuring range of ±4 mm, a resolution of 0.5 μm, a repeatability of 2.5 μm, and a digital display with a zero key.
[0028] Working principle:
[0029] First, place the reference calibration plate on the upper surface of the carrier plate, and calibrate and return each laser sensor and the lower laser sensor to zero;
[0030] Next, the part to be tested is placed on a carrier plate and positioned;
[0031] Next, multiple laser sensors are controlled to work simultaneously, and the distance between them and each test point on the upper surface of the part to be tested is respectively collected. A fitting plane corresponding to the upper surface of the part to be tested is formed according to the collected data, and whether the part to be tested is qualified is judged by comparing with a preset threshold value. In this way, data of multiple test points on the surface of the part to be tested can be obtained at the same time without contacting the part to be tested, which not only improves the efficiency of detection, but also avoids the situation in the prior art where the probe is in contact with the part to be tested and is damaged during the detection process and cannot be identified, thereby ensuring the quality of the tested products.
[0032] The high-efficiency flatness detection device of the utility model can obtain data of multiple points on the surface of the part to be tested at the same time without contacting the part to be tested, which not only improves the efficiency of detection, but also avoids the situation that the part cannot be identified due to damage during the detection process caused by contact with the part to be tested, thereby ensuring the quality of the tested product.
[0033] In addition, it is convenient to assemble the first and second equal-height columns to ensure the flatness of the carrier plate itself, and provides a larger space for placing the parts to be tested on the upper surface of the carrier plate, which is convenient for taking and placing the parts to be tested.
[0034] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.
Claims
1. An efficient flatness detection device for detecting a part to be detected (100), comprising: A machine frame (12), a detection substrate (1) mounted on the upper part of the machine frame (12), and a bottom substrate (13) mounted on the machine frame (12) and located below the detection substrate (1), characterized in that: a carrier plate (2) for placing a part to be tested (100) and a top plate (3) are sequentially arranged above the detection substrate (1), the detection substrate (1) and the carrier plate (2) are connected by at least two first equal-height columns (41), the top plate (3) and the carrier plate (2) are connected by at least two second equal-height columns (42), a plurality of vertically extending support plates (5) are installed on the lower surface of the top plate (3), a laser sensor (6) is installed on the side surface of each of the support plates (5) whose upper end is connected to the top plate (3), and the emitting end of each of the laser sensors (6) is directed toward the upper surface of the part to be tested (100) on the carrier plate (2) for sensing the distance value between the upper surface of the part to be tested (100) and the top plate (3).
2. The high-efficiency flatness detection device according to claim 1, characterized in that: The upper surface of the detection substrate (1) and the lower surface of the carrier plate (2) are connected via four first-level columns (41). Four corners of the upper surface of the carrier plate (2) are respectively provided with a second-level column (42) connected to the lower surface of the top plate (3). The four second-level columns (42) are all located on the inner side of the four first-level columns (41).
3. The high-efficiency flatness detection device according to claim 1, characterized in that: Three baffles (9) are installed on the frame (12) and outside the carrier plate (2).
4. The high-efficiency flatness detection device according to claim 3, characterized in that: At least one of the baffles (9) is rotatably mounted on the frame (12) via at least two hinges (10) arranged at intervals.
5. The high-efficiency flatness detection device according to claim 1, characterized in that: 8 to 12 laser sensors (6) are mounted on the lower surface of the top plate (3) via a support plate (5).
6. The high-efficiency flatness detection device according to claim 1, characterized in that: A reference calibration plate (8) is provided on the upper surface of the base substrate (13). The reference calibration plate (8) used for calibrating and resetting the laser sensor (6) has a thickness of 10.5 mm and a flatness of ±0.003 mm.
7. The high-efficiency flatness detection device according to claim 6, characterized in that: The reference calibration plate (8) is placed on the bottom substrate (13) via four support seats (11) arranged at its corners.