Multi-position high-precision flatness detection device
By designing a multi-position high-precision planarity detection device in die-casting production, using a combination of laser sensors and positioning columns, the problems of low detection efficiency and poor accuracy in the existing technology are solved, and efficient and accurate planarity detection is achieved, ensuring that Consistency of product quality.
Patent Information
- Application Number
- CN202323654818.9
- 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
在压铸生产过程中,现有技术中平面度检测效率低且精度差,难以满足产品品质要求,尤其是对压铸件的多点检测存在检测效率低和精度不一致的问题。
A multi-position high-precision plane detection device is designed, using a combination of laser sensors and positioning columns. The surface distance of the parts to be tested is sensed through the laser sensor, and the precise positioning and multi-point data acquisition of the parts are achieved in combination with the positioning columns, avoiding the need to be tested. Direct contact of parts improves detection efficiency and accuracy.
It realizes efficient and accurate planarity detection, improves detection efficiency, avoids damage during the inspection process, and ensures consistency of product quality and data consistency of multiple parts.
Smart Images
Figure CN222211607U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of flatness detection, in particular to a multi-position high-precision flatness detection device. Background Art
[0002] During the die-casting production process, the flatness of die-cast parts is deformed and fails to meet the technical requirements, which is one of the common defects in die-casting production. Therefore, in the later stage of die-casting production, it is necessary to detect the flatness of die-casting parts to ensure product quality, and it is necessary to detect the flatness of die-casting products to screen out defective products. In the prior art, flatness detection generally uses camera imaging or multi-point detection by probes one by one, which has problems such as low detection efficiency and poor detection accuracy. Utility Model Content
[0003] The main purpose of the utility model is to provide a multi-position high-precision flatness detection device, which not only improves the detection efficiency, but also can realize the precise positioning of the parts to be tested in multiple directions, thereby ensuring the accuracy of the detection of each part to be tested and the data consistency of the detection of multiple identical parts to be tested.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a multi-position high-precision flatness detection device for detecting parts to be detected, 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, characterized in that: a carrier plate and a top plate for placing the parts to be detected are sequentially arranged 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 faces the upper surface of the part to be detected on the carrier plate, and is used to sense the distance value between the upper surface of the part to be detected;
[0005] The lower surface of the part to be measured is provided with a plurality of downward protrusions, the upper surface of the carrier plate is provided with a plurality of strip grooves corresponding to the protrusions on the part to be measured, the width of each of the strip grooves extending along the width direction of the part to be measured and the carrier plate is greater than the width of the corresponding protrusion, and the upper surface of the carrier plate is provided with at least two first positioning columns and at least one second positioning column spaced apart in its length direction, the at least two first positioning columns are used for pressing and contacting with the side surface of the long side of the part to be measured, and the at least one second positioning column is used for pressing and contacting with the side surface of the short side of the part to be measured.
[0006] The further improved scheme in the above technical scheme is as follows:
[0007] 1. In the above solution, each of the strip-shaped grooves penetrates the carrier plate in the width direction.
[0008] 2. In the above solution, a recessed portion is provided on the side surface of the part to be tested for cooperating with the first positioning column, and at least one of the first positioning columns is used for pressing and contacting with the side wall of the recessed portion.
[0009] 3. In the above solution, the part to be tested is an aluminum alloy die casting or an aluminum-magnesium alloy die casting.
[0010] 4. In the above solution, 8 to 12 laser sensors are installed on the lower surface of the top plate through a support plate.
[0011] 5. In the above solution, a display is installed on the top of the frame, and a keyboard and a mouse that match the display are provided on the upper surface of the bottom substrate.
[0012] 6. In the above solution, a reference calibration plate is provided on the upper surface of the bottom substrate for calibrating and resetting the laser sensor.
[0013] 7. In the above solution, the reference calibration plate is placed on the bottom substrate via four support seats arranged at its corners.
[0014] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:
[0015] The utility model discloses a multi-position high-precision 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 is directed toward 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 the part to be measured, and can obtain data of multiple points to be measured on the 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, thereby ensuring the various qualities of the detected product; further, the lower surface of the part to be measured has a plurality of downward protrusions A plurality of strip grooves corresponding to the raised portions on the part to be tested are provided on the upper surface of the carrier plate, and the width of each strip groove extending along the width direction of the part to be tested and the carrier plate is greater than the width of the corresponding raised portion. At least two first positioning posts and at least one second positioning post are installed on the upper surface of the carrier plate, which are spaced apart in the length direction thereof. The at least two first positioning posts are used for pressing and contacting the side surfaces of the long sides of the part to be tested, and the at least one second positioning post is used for pressing and contacting the side surfaces of the short sides of the part to be tested, which is convenient for taking, placing and installing the part to be tested, and can realize accurate positioning of the part to be tested in multiple directions, thereby ensuring the accuracy of detecting each part to be tested and the consistency of data detected on multiple identical parts to be tested. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall structure of the multi-position high-precision flatness detection device of the utility model;
[0017] Figure 2 It is a partial structural schematic diagram of the multi-position high-precision flatness detection device of the utility model;
[0018] Figure 3 This is a schematic diagram of the principle of the multi-position high-precision flatness detection device of the utility model;
[0019] Figure 4 This is a front view of the carrier board without the part to be tested placed on it;
[0020] Figure 5 This is a front view of the carrier board with the parts to be tested placed on it.
[0021] In the above figures: 100, part to be tested; 101, raised portion; 102, recessed portion; 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; 7, support seat; 8, reference calibration plate; 9, strip groove; 10, first positioning column; 11, second positioning column; 12, frame; 13, bottom substrate; 14, display; 151, keyboard; 152, mouse. Implementation
[0022] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.
[0023] Embodiment 1: A multi-position high-precision flatness detection device, used 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;
[0024] The lower surface of the part to be tested 100 is provided with a plurality of downward protrusions 101, and the upper surface of the carrier plate 2 is provided with a plurality of strip grooves 9 corresponding to the protrusions 101 on the part to be tested 100. The width of each of the strip grooves 9 extending along the width direction of the part to be tested 100 and the carrier plate 2 is greater than the width of the corresponding protrusion 101. At least two first positioning columns 10 and at least one second positioning column 11 are installed on the upper surface of the carrier plate 2 and are arranged at intervals in the length direction thereof. The at least two first positioning columns 10 are used for pressing and contacting with the side surface of the long side of the part to be tested 100, and the at least one second positioning column 11 is used for pressing and contacting with the side surface of the short side of the part to be tested 100.
[0025] Each of the strip grooves 9 is through the carrier plate 2 in the width direction; the side surface of the part to be tested 100 for cooperating with the first positioning column 10 has a recessed portion 102, and at least one of the first positioning columns 10 is used to press against the side wall of the recessed portion 102;
[0026] The part to be tested is placed on the carrier plate so that each protrusion on the lower surface of the part to be tested is correspondingly embedded in the strip groove on the carrier plate;
[0027] Then, the part to be tested is pushed toward the first positioning pillar until the side surface of one long side of the part to be tested is pressed and contacted with at least two first positioning pillars. During this process, each protrusion located on the lower surface of the part to be tested slides in the corresponding strip groove along the length direction of the strip groove.
[0028] Next, the part to be tested is pushed toward the second positioning post until the side surface of one end face thereof is pressed against the second positioning post, thereby realizing accurate positioning of the part to be tested and facilitating the placement and installation of the part to be tested, thereby ensuring the accuracy of testing each part to be tested and the consistency of data for testing multiple identical parts to be tested;
[0029] 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;
[0030] A laser sensor 6 is mounted on the lower surface of the top plate 3 via a support plate 5 .
[0031] Embodiment 2: A multi-position high-precision 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 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;
[0032] 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 in contact with the part to be tested and cannot be identified during the detection process, thereby ensuring the quality of the tested products;
[0033] The lower surface of the part to be tested 100 is provided with a plurality of downward protrusions 101, and the upper surface of the carrier plate 2 is provided with a plurality of strip grooves 9 corresponding to the protrusions 101 on the part to be tested 100. The width of each of the strip grooves 9 extending along the width direction of the part to be tested 100 and the carrier plate 2 is greater than the width of the corresponding protrusion 101. At least two first positioning columns 10 and at least one second positioning column 11 are installed on the upper surface of the carrier plate 2 and are arranged at intervals in the length direction thereof. The at least two first positioning columns 10 are used for pressing and contacting with the side surface of the long side of the part to be tested 100, and the at least one second positioning column 11 is used for pressing and contacting with the side surface of the short side of the part to be tested 100.
[0034] The above-mentioned part 100 to be tested is an aluminum-magnesium alloy die-casting; 12 laser sensors 6 are installed on the lower surface of the above-mentioned top plate 3 through a support plate 5;
[0035] A display 14 is installed on the top of the frame 12, and a keyboard 151 and a mouse 152 that cooperate with the display 14 are arranged on the upper surface of the bottom substrate 13;
[0036] A reference calibration plate 8 is disposed on the upper surface of the bottom substrate 13. The thickness of the reference calibration plate 8 used for calibrating and resetting the laser sensor 6 is 10.5 mm, and the flatness is ±0.003 mm. The reference calibration plate 8 is placed on the bottom substrate 13 through four support seats 7 disposed at its corners. 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 upper laser sensor and lower laser sensor.
[0037] 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.
[0038] The utility model adopts the multi-position high-precision flatness detection device.
[0039] Working principle:
[0040] First, place the reference calibration plate on the upper surface of the carrier plate, and calibrate and return each upper laser sensor and lower laser sensor to zero;
[0041] Next, the part to be tested is placed on the carrier plate so that each protrusion on the lower surface of the part to be tested is correspondingly embedded in the strip groove on the carrier plate;
[0042] Then, the part to be tested is pushed toward the first positioning pillar until the side surface of one long side of the part to be tested is pressed and contacted with at least two first positioning pillars. During this process, each protrusion located on the lower surface of the part to be tested slides in the corresponding strip groove along the length direction of the strip groove.
[0043] Next, the part to be tested is pushed toward the second positioning post until the side surface of one end face thereof is pressed against the second positioning post, thereby realizing accurate positioning of the part to be tested and facilitating the placement and installation of the part to be tested, thereby ensuring the accuracy of testing each part to be tested and the consistency of data for testing multiple identical parts to be tested;
[0044] 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.
[0045] 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. A multi-position high-precision flatness detection device for detecting a part to be detected (100), comprising: A frame (12), a detection substrate (1) mounted on the upper part of the frame (12), and a bottom substrate (13) mounted on the 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 at intervals directly above the detection substrate (1); the detection substrate (1) and the carrier plate (2) are connected via at least two first equal-height columns (41); the top plate (3) and the carrier plate (2) are connected via 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); 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); the emitting end of each of the laser sensors (6) faces the upper surface of the part to be tested (100) on the carrier plate (2) and is used to sense the distance value between the upper surface of the part to be tested (100); The lower surface of the part to be tested (100) is provided with a plurality of downwardly directed protrusions (101); the upper surface of the carrier plate (2) is provided with a plurality of strip grooves (9) corresponding to the protrusions (101) on the part to be tested (100); the width of each of the strip grooves (9) extending in the width direction of the part to be tested (100) and the carrier plate (2) is greater than the width of the corresponding protrusion (101); the upper surface of the carrier plate (2) is provided with at least two first positioning columns (10) and at least one second positioning column (11) spaced apart in the length direction thereof; the at least two first positioning columns (10) are used for pressing and contacting the side surface of the long side of the part to be tested (100); and the at least one second positioning column (11) is used for pressing and contacting the side surface of the short side of the part to be tested (100).
2. The multi-position high-precision flatness detection device according to claim 1, characterized in that: Each of the strip-shaped grooves (9) passes through the carrier plate (2) in the width direction.
3. The multi-position high-precision flatness detection device according to claim 1, characterized in that: A recessed portion (102) is provided on the side surface of the part to be tested (100) for cooperating with the first positioning column (10), and at least one of the first positioning columns (10) is used for pressing and contacting with the side wall of the recessed portion (102).
4. The multi-position high-precision flatness detection device according to claim 1, characterized in that: The part to be tested (100) is an aluminum alloy die casting or an aluminum-magnesium alloy die casting.
5. The multi-position high-precision 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 multi-position high-precision flatness detection device according to claim 1, characterized in that: A display (14) is installed on the top of the frame (12), and a keyboard (151) and a mouse (152) that cooperate with the display (14) are provided on the upper surface of the bottom substrate (13).
7. The multi-position high-precision flatness detection device according to claim 1, characterized in that: The upper surface of the bottom substrate (13) is provided with a reference calibration plate (8) for calibrating and resetting the laser sensor (6).
8. The multi-position high-precision flatness detection device according to claim 7, characterized in that: The reference calibration plate (8) is placed on the bottom substrate (13) via four support seats (7) arranged at its corners.