Flatness detection tool for die-casting part

Abstract

The utility model discloses a die-casting part flatness detection tool, which is characterized in that a carrier plate for placing a part to be detected and a top plate are sequentially arranged right above a bottom substrate at intervals, and a plurality of vertically extending upper support plates are arranged on the lower surface of the top plate at intervals; an upper laser sensor is installed on the side surface of each upper supporting plate, the upper end of each upper supporting plate is connected with the top plate, and the transmitting end of each upper laser sensor faces the upper surface of a to-be-measured part on the carrier plate and is used for sensing the value of the distance between the transmitting end and the upper surface of the to-be-measured part. A plurality of vertically extending lower supporting plates are mounted on the upper surface of the bottom substrate at intervals, a lower laser sensor is mounted on the side surface of each lower supporting plate with the lower end connected with the bottom substrate, and a plurality of detection through holes corresponding to the lower laser sensors are formed in the carrier plate. According to the utility model, the detection efficiency is improved, and the position deviation and the damage to the part caused in the turn-over detection process of the part to be detected can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of flatness detection, in particular to a flatness detection tool for die-casting parts. Background Art

[0002] Die casting is a kind of pressure-casting part. It uses a pressure casting machine equipped with a casting mold to pour liquid metals such as copper, zinc, aluminum or aluminum alloy into the inlet of the die casting machine. The die casting machine is die-cast to cast copper, zinc, aluminum or aluminum alloy parts in the shape and size limited by the mold. Such parts are usually called die castings.

[0003] At present, castings need to have good flatness during processing. In order to ensure product quality, it is necessary to detect the flatness of die-cast products to screen out defective products. In the existing technology, flatness detection is generally carried out 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

[0004] The main purpose of the utility model is to provide a flatness detection tool for die-cast parts, which not only improves the detection efficiency, but also avoids position deviation and damage to the parts caused by the flipping detection process of the parts to be tested.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a flatness detection tool for die-cast parts, used for detecting parts to be tested, comprising: a bottom base plate, a carrier plate for placing parts to be tested and a top plate are sequentially arranged above the bottom base plate, the bottom base plate 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 upper support plates are installed at intervals on the lower surface of the top plate, an upper laser sensor is installed on the side surface of each of the upper support plates connected to the top plate at the upper end, and the emitting end of each of the upper laser sensors faces the upper surface of the part to be tested on the carrier plate, and is used to sense the distance value between the upper surface of the part to be tested;

[0006] A plurality of vertically extending lower support plates are installed at intervals on the upper surface of the bottom substrate, a lower laser sensor is installed on the side surface of each of the lower support plates connected to the bottom substrate at the lower end, and a plurality of detection through holes corresponding to the lower laser sensors are opened on the carrier plate, so that the detection light emitted from the emitting end of each lower laser sensor toward the lower surface of the carrier plate can pass through the detection through hole and reflect and contact with the lower surface of the part to be tested.

[0007] The further improved scheme in the above technical scheme is as follows:

[0008] 1. In the above scheme, 12 upper laser sensors are installed on the lower surface of the top plate through the upper support plate, and 8 lower laser sensors are installed on the upper surface of the bottom substrate through the lower support plate.

[0009] 2. In the above scheme, there is also a reference calibration plate, which is used to calibrate and reset the upper laser sensor and the lower laser sensor. The thickness of the reference calibration plate is 10.5 mm and the flatness is ±0.003 mm.

[0010] 3. In the above solution, the part to be tested is an aluminum alloy die casting or an aluminum-magnesium alloy die casting.

[0011] 4. In the above scheme, the part to be tested is a heat sink of a new energy vehicle.

[0012] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0013] According to the utility model of the present invention, a plurality of vertically extending upper support plates are installed at intervals on the lower surface of the top plate, an upper laser sensor is installed on the side surface of each upper support plate connected to the top plate at the upper end, an emitting end of each upper laser sensor is directed toward the upper surface of the part to be measured on the carrier plate, and is used for sensing the distance value between the upper surface of the part to be measured, a plurality of vertically extending lower support plates are installed at intervals on the upper surface of the bottom substrate, a lower laser sensor is installed on the side surface of each lower support plate connected to the bottom substrate at the lower end, and a plurality of detection through holes corresponding to the lower laser sensors are opened on the carrier plate, so that the detection light emitted by the emitting end of each lower laser sensor toward the lower surface of the carrier plate can pass through the detection through holes and reflect and contact with the lower surface of the part to be measured, so that one-time non-contact detection of the two surfaces of the part to be measured can be realized simultaneously and multiple test point data on each surface can be obtained at the same time, which not only improves the detection efficiency, but also avoids the position deviation and damage to the part caused by the flipping detection process of the part to be measured. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the flatness detection tooling of the die-casting parts of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the flatness detection tooling of the die-casting parts of the utility model when viewed from above;

[0016] Figure 3 for Figure 2 A magnified view of the local structure in

[0017] Figure 4 It is a schematic diagram of the principle of the utility model.

[0018] In the above drawings: 100, part to be tested; 1, bottom substrate; 2, carrier plate; 3, top plate; 41, first equal height column; 42, second equal height column; 51, upper support plate; 52, lower support plate; 61, upper laser sensor; 62, lower laser sensor; 7, detection through hole; 8, reference calibration plate. Implementation

[0019] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0020] Embodiment 1: A flatness detection tool for die-cast parts, used for detecting a part 100 to be tested, comprising: a bottom substrate 1, a carrier plate 2 for placing the part 100 to be tested and a top plate 3 are sequentially arranged above the bottom substrate 1, the bottom 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 upper support plates 51 are installed at intervals on the lower surface of the top plate 3, an upper laser sensor 61 is installed on the side surface of each of the upper support plates 51 whose upper end is connected to the top plate 3, and the emitting end of each of the upper laser sensors 61 is facing the upper surface of the part 100 to be tested on the carrier plate 2, and is used for sensing the distance value between each point to be tested on the upper surface of the part 100 to be tested;

[0021] A plurality of lower supporting plates 52 extending vertically are installed at intervals on the upper surface of the bottom substrate 1, and a lower laser sensor 62 is installed on the side surface of each lower supporting plate 52 connected to the bottom substrate 1 at the lower end, and a plurality of detection through holes 7 corresponding to the lower laser sensors 62 are opened on the carrier plate 2, so that the detection light emitted from the emitting end of each lower laser sensor 62 toward the lower surface of the carrier plate 2 can pass through the detection through hole 7 and reflectively contact with the to-be-detected point on the lower surface of the to-be-detected part 100;

[0022] Control multiple upper laser sensors and multiple lower laser sensors to work simultaneously, respectively collect the distance between them and each measured point on the upper and lower surfaces of the part to be measured, and form a fitting plane corresponding to the upper and lower surfaces of the part to be measured based on the collected data, and judge whether the part to be measured is qualified by comparing with a preset threshold value.

[0023] There is also a reference calibration plate 8, which is used to calibrate and reset the upper laser sensor 61 and the lower laser sensor 62. The thickness of the reference calibration plate 8 is 10.5mm, and the flatness is ±0.003mm. 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 the lower laser sensor.

[0024] The above-mentioned part 100 to be tested is an aluminum-magnesium alloy die-casting.

[0025] Embodiment 2: A flatness detection tool for die-cast parts, used for detecting a part 100 to be tested, comprising: a bottom substrate 1, a carrier plate 2 for placing the part 100 to be tested and a top plate 3 are sequentially arranged above the bottom substrate 1, the bottom 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 upper support plates 51 are installed at intervals on the lower surface of the top plate 3, an upper laser sensor 61 is installed on the side surface of each of the upper support plates 51 whose upper end is connected to the top plate 3, and the emitting end of each of the upper laser sensors 61 is facing the upper surface of the part 100 to be tested on the carrier plate 2, and is used for sensing the distance value between each point to be tested on the upper surface of the part 100 to be tested;

[0026] A plurality of vertically extending lower support plates 52 are installed at intervals on the upper surface of the bottom substrate 1, and a lower laser sensor 62 is installed on the side surface of each of the lower support plates 52 connected to the bottom substrate 1 at the lower end. A plurality of detection through holes 7 corresponding to the lower laser sensors 62 are opened on the carrier plate 2, so that the detection light emitted from the emitting end of each lower laser sensor 62 toward the lower surface of the carrier plate 2 can pass through the detection through hole 7 and reflect and contact with the test point on the lower surface of the part 100 to be tested.

[0027] Twelve upper laser sensors 61 are mounted on the lower surface of the top plate 3 via an upper support plate 51, and eight lower laser sensors 62 are mounted on the upper surface of the bottom substrate 1 via a lower support plate 52;

[0028] The above-mentioned part 100 to be tested is an aluminum alloy die casting;

[0029] The above-mentioned part 100 to be tested is a heat sink of a new energy vehicle;

[0030] The upper laser sensor 61 and the lower laser sensor 62 are both Lanbao HL-G103-SJ laser ranging displacement sensors with a measuring distance of 30mm, a measuring range of ±4mm, a resolution of 0.5μm, a repeatability of 2.5μm, and a digital display with a zero key.

[0031] Working principle:

[0032] 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;

[0033] Next, the part to be tested is placed on a carrier plate and positioned;

[0034] Next, multiple upper laser sensors and multiple lower laser sensors are controlled to work simultaneously, and the distances between them and each test point on the upper and lower surfaces of the part to be tested are respectively collected, and fitting planes corresponding to the upper and lower surfaces of the part to be tested are formed according to the collected data, and whether the part to be tested is qualified is judged by comparing with a preset threshold value, thereby realizing a one-time non-contact detection of the two surfaces of the part to be tested, which not only improves the detection efficiency, but also avoids the position deviation caused by the flipping detection process of the part to be tested and the damage to the part caused by the probe contacting the part during the flipping process and in the prior art.

[0035] The flatness detection tooling of the die-cast parts of the utility model can realize one-time non-contact detection of two surfaces of the tested parts at the same time and obtain data of multiple test points on each surface at the same time, which not only improves the detection efficiency but also avoids position deviation and damage to the parts caused by turning over the tested parts during the detection process.

[0036] 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 flatness detection tool for die-cast parts, used for detecting a part to be detected (100), comprising: A bottom substrate (1), characterized in that: a carrier plate (2) for placing a part to be measured (100) and a top plate (3) are arranged in sequence above the bottom substrate (1); the bottom 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 upper support plates (51) are installed at intervals on the lower surface of the top plate (3); an upper laser sensor (61) is installed on the side surface of each of the upper support plates (51) whose upper end is connected to the top plate (3); the emitting end of each of the upper laser sensors (61) faces the upper surface of the part to be measured (100) on the carrier plate (2) and is used to sense the distance value between the upper surface of the part to be measured (100); A plurality of lower support plates (52) extending vertically are installed at intervals on the upper surface of the bottom substrate (1); a lower laser sensor (62) is installed on the side surface of each lower support plate (52) whose lower end is connected to the bottom substrate (1); and a plurality of detection through holes (7) corresponding to the lower laser sensors (62) are provided on the carrier plate (2), so that the detection light emitted from the emitting end of each lower laser sensor (62) toward the lower surface of the carrier plate (2) can pass through the detection through hole (7) and reflect and contact with the lower surface of the part (100) to be tested.

2. The flatness detection tool for die-cast parts according to claim 1, characterized in that: Twelve upper laser sensors (61) are mounted on the lower surface of the top plate (3) via an upper support plate (51), and eight lower laser sensors (62) are mounted on the upper surface of the bottom substrate (1) via a lower support plate (52).

3. The flatness detection tool for die-cast parts according to claim 1, characterized in that: It also has a reference calibration plate (8) for calibrating and resetting the upper laser sensor (61) and the lower laser sensor (62). The thickness of the reference calibration plate (8) is 10.5 mm and the flatness is ±0.003 mm.

4. The flatness detection tool for die-cast parts 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 flatness detection tool for die-cast parts according to claim 1, characterized in that: The part to be tested (100) is a heat sink of a new energy vehicle.

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