Sheet metal flatness detection tool

Abstract

The utility model discloses a sheet metal flatness detection tool, and relates to the sheet metal detection technology field, the sheet metal flatness detection tool comprises a pedestal, a mounting frame, a placing table, a detection device and a scanning driving mechanism, the placing table is movably arranged at the upper end of the pedestal, and the placing table is provided with a placing groove used for placing a sheet metal; the mounting frame is mounted at the upper end of the placement table, the detection device is movably connected in the mounting frame and corresponds to the placement groove, and the detection device comprises an infrared range finder and an infrared thermal detection imager which are arranged in the detection groove in parallel; according to the metal plate flatness detection device, flatness detection can be carried out on a metal plate in an infrared distance measuring and infrared thermal imaging mode through the infrared distance measuring device and the infrared thermal sensing detection imager in the detection device, the detection range is comprehensive, and the arranged light shield can further improve the detection precision; and detection errors or omission can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sheet metal detection, and specifically to a sheet metal flatness detection tool. BACKGROUND

[0002] Sheet metal flatness detection is an important link for evaluating the deviation of the surface of a sheet metal part from an ideal plane, aiming to ensure machining precision. Main detection methods include visual inspection, caliper measurement, laser scanning, stylus profilometry, and optical interferometry, etc. Avoiding the unevenness of sheet metal will affect the service life, so it is necessary to strictly detect its flatness.

[0003] The existing detection equipment, such as the Chinese patent with application number 202222990821.7, discloses a sheet metal flatness detection device. Its technical solution is to detect the surface of sheet metal by scanning with an infrared distance sensor. The detection method is single, and the infrared distance sensor of this technical solution is point type, which cannot detect a small area between adjacent scanning infrared distance sensors, and there is a risk of detection omission. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of sheet metal flatness detection tool to solve the problem of single detection method of existing sheet metal flatness detection equipment.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of sheet metal flatness detection tool, including base, further including installation frame, placement table, detection device and scanning drive mechanism, wherein:

[0006] The placement table is movably arranged on the upper end of the base, and the placement table is provided with a placement groove for placing sheet metal.

[0007] The installation frame is installed on the upper end of the placement table, and the detection device is movably connected in the installation frame and corresponds to the placement groove. The detection device includes an infrared distance sensor and an infrared thermal imaging detector arranged in parallel in the detection groove.

[0008] The scanning drive mechanism is arranged on the side end of the installation frame and is used to drive the movement of the detection device.

[0009] As a preferred technical scheme of the utility model, a clamping plate is movably connected in the placement groove in a symmetrical manner. A plurality of guide rods are installed on the side end of the clamping plate. A plurality of fixed cylinders are installed on the inner wall of the placement groove close to one side of the clamping plate. Springs are sleeved on the guide rods and the outer wall of the fixed cylinders.

[0010] As a preferred technical scheme of the utility model, the driving mechanism includes driving motor which is symmetrically installed at the side end of the installation frame, a screw rod is installed at the output end of the driving motor, the detection device is symmetrically installed with sliding table which is provided with screw hole at both ends, and the screw rod is threadedly connected with the screw hole on the sliding table.

[0011] As a preferred technical scheme of the utility model, the utility model also includes light shield, the light shield is fixed on the outer wall of the installation frame and wraps the driving motor, and the placement table is movably connected with the light shield and fits.

[0012] As a preferred technical scheme of the utility model, the light shield is symmetrically hinged with lightproof observation window at both sides.

[0013] As a preferred technical scheme of the utility model, the base is installed with driving cylinder which faces upwards at the upper end, and the output end of the driving cylinder is fixedly connected with the bottom of the placement table.

[0014] As a preferred technical scheme of the utility model, the base is installed with a plurality of installation guide columns on the upper end face, the installation guide column penetrates the placement table and is movably connected with the placement table, and the installation guide column is fixedly connected with the bottom of the installation frame.

[0015] Compared with the prior art, the utility model provides a kind of sheet metal flatness detection tool, with the following beneficial effects:

[0016] The utility model can detect the flatness of sheet metal by infrared ranging and infrared thermal imaging mode through infrared ranging device and infrared thermal detection imaging instrument in detection device, not only comprehensive detection range, and higher precision, there is no missing part, and the light shield set can further improve detection accuracy, avoid detection error or omission. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is overall structure schematic view of the utility model;

[0018] Figure 2 It is internal structure schematic view of the utility model;

[0019] Figure 3 It is internal structure section view of the utility model;

[0020] Figure 4 It is the utility model Figure 3 A zone enlarged view in the utility model;

[0021] Figure 5 It is detection device bottom structure schematic view of the utility model.

[0022] In the figure: 1, base; 11, drive cylinder; 12, mounting guide column; 2, light shield; 21, observation window; 3, mounting frame; 4, scanning drive mechanism; 41, drive motor; 42, screw rod; 43, sliding table; 5, placing table; 51, placing groove; 52, clamping plate; 53, guide rod; 54, fixed cylinder; 55, spring; 6, detection device; 61, detection groove; 62, infrared distance sensor; 63, infrared thermal imaging detector. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to the accompanying drawings Figures 1-5 The utility model discloses a sheet metal flatness detection frock, including base 1, still including mounting frame 3, placing table 5, detection device 6 and scanning drive mechanism 4, wherein:

[0025] The placing table 5 movably arranged on the upper end of the base 1, the placing table 5 is equipped with the placing groove 51 for placing sheet metal;

[0026] The mounting frame 3 is installed on the upper end of the placing table 5, the detection device 6 is movably connected in the mounting frame 3 and corresponds with the placing groove 51, the detection device 6 includes infrared distance sensor 62 and infrared thermal imaging detector 63 that are arranged in the detection groove 61 in parallel;

[0027] The scanning drive mechanism is arranged at the side end of the mounting frame 3 and is used for driving the detection device 6 to move.

[0028] Please refer to the accompanying drawings Figure 4 The clamping plate 52 is movably connected in the placing groove 51 symmetrically, a plurality of guide rods 53 are installed on the side end of the clamping plate 52, a plurality of fixed cylinders 54 are installed on the inner wall of the placing groove 51 close to one side of the clamping plate 52, and the guide rod 53 and the fixed cylinder 54 are sleeved with the spring 55 on the outer wall.

[0029] Specifically, the clamping plate 52 can clamp and fix the sheet metal placed in the placing groove 51 under the driving of the spring 55.

[0030] Please refer to the accompanying drawings Figure 3 The scanning drive mechanism includes the drive motor 41 symmetrically installed at the side end of the mounting frame 3, the drive motor 41 is installed on the output end with the screw rod 42, the detection device 6 is symmetrically installed on the sliding table 43 with the screw hole, and the screw rod 42 is threadedly connected with the screw hole on the sliding table 43.

[0031] Specifically, the driving motor 41 drives the screw rod 42 to rotate, the screw rod 42 drives the sliding table 43 to move, and the sliding table 43 drives the detection device 6 to move to reciprocatingly scan the metal plate placed in the placing groove 51 on the upper end of the placing table 5.

[0032] It should be noted that, in the detection process, first, the infrared thermal imaging detector 63 is started to detect, and during the detection of the infrared thermal imaging detector 63, the infrared distance meter 62 needs to be kept off, because the infrared distance meter 62 will destroy the temperature distribution of the surface of the metal plate, and affect the detection accuracy of the infrared thermal imaging detector 63.

[0033] Please refer to the accompanying drawings Figures 1-2 Further, the light shield 2 is fixed to the outer wall of the mounting frame 3 and wraps the driving motor 41, and the placing table 5 is movably connected with the light shield 2 and fits with the light shield 2.

[0034] Further, the light shield 2 is fixed to the outer wall of the mounting frame 3 and wraps the driving motor 41, and the placing table 5 is movably connected with the light shield 2 and fits with the light shield 2.

[0035] Please refer to the accompanying drawings Figure 3 Further, the light shield 2 is fixed to the outer wall of the mounting frame 3 and wraps the driving motor 41, and the placing table 5 is movably connected with the light shield 2 and fits with the light shield 2.

[0036] Further, the light shield 2 is fixed to the outer wall of the mounting frame 3 and wraps the driving motor 41, and the placing table 5 is movably connected with the light shield 2 and fits with the light shield 2.

[0037] The working principle and use process of the utility model are as follows: before use, first, the driving cylinder 11 is controlled to drive the placing table 5 to move downwards, so that the placing groove 51 on the placing table 5 leaks, then the metal plate to be detected is clamped between the clamping plates 52 in the placing groove 51, the clamping plates 52 clamp the metal plate in the placing groove 51 through the springs 55, then the driving cylinder 11 is started to drive the placing table 5 to move upwards, the placing table 5 moves upwards to enter the light shield 2, at this time, the driving motor 41 is started, the driving motor 41 drives the screw rod 42 to rotate, the screw rod 42 drives the sliding table 43 to move, and the sliding table 43 drives the detection device 6 to move;

[0038] At this time, the detection device 6 is driven by the driving motor 41 to reciprocatingly scan the metal plate in the placing groove 51 on the upper end of the placing table 5, first, the infrared thermal imaging detector 63 in the detection device 6 is started, the infrared thermal imaging detector 63 is used for infrared thermal imaging detection on the surface of the metal plate, the temperature difference between uneven places and normal places is used for flatness detection, then the infrared thermal imaging detector 63 is turned off, and the infrared distance meter 62 is started to detect the flatness of the metal plate through distance measurement.

Claims

1. A sheet metal flatness inspection fixture, comprising a base (1), characterized in that, It also includes a mounting frame (3), a placement stage (5), a detection device (6), and a scanning drive mechanism (4), wherein: The placement platform (5) is movably mounted on the upper end of the base (1), and the placement platform (5) is provided with a placement slot (51) for placing sheet metal. The mounting frame (3) is mounted on the upper end of the placement platform (5), and the detection device (6) is movably connected in the mounting frame (3) and corresponds to the placement slot (51). The detection device (6) includes an infrared rangefinder (62) and an infrared thermal imaging camera (63) arranged parallel to each other in the detection slot (61). The scanning drive mechanism is located on the side of the mounting frame (3) and is used to drive the detection device (6) to move.

2. The sheet metal flatness inspection fixture according to claim 1, characterized in that: The placement groove (51) is symmetrically and movably connected with a clamping plate (52). Multiple guide rods (53) are installed on the side of the clamping plate (52). Multiple fixing cylinders (54) are installed on the inner wall of the placement groove (51) near the clamping plate (52). Springs (55) are sleeved on the outer walls of the guide rods (53) and the fixing cylinders (54).

3. The sheet metal flatness inspection fixture according to claim 2, characterized in that: The driving mechanism includes a drive motor (41) symmetrically mounted on the side of the mounting frame (3). The output end of the drive motor (41) is equipped with a screw (42). The detection device (6) is symmetrically mounted with slides (43) with screw holes at both ends. The screw (42) is threadedly connected to the screw hole on the slide (43).

4. The sheet metal flatness inspection fixture according to claim 3, characterized in that: It also includes a light shield (2), which is fixed to the outer wall of the mounting frame (3) and encloses the drive motor (41). The placement platform (5) is movably connected to and fits the light shield (2).

5. The sheet metal flatness inspection fixture according to claim 4, characterized in that: The light shield (2) has opaque observation windows (21) symmetrically hinged on both sides.

6. The sheet metal flatness inspection fixture according to claim 1, characterized in that: An upward-facing drive cylinder (11) is installed on the upper end of the base (1), and the output end of the drive cylinder (11) is fixedly connected to the bottom of the placement platform (5).

7. The sheet metal flatness inspection fixture according to claim 6, characterized in that: The upper surface of the base (1) is equipped with multiple installation guide columns (12), which pass through the placement platform (5) and are movably connected to the placement platform (5). The installation guide columns (12) are fixedly connected to the bottom of the installation frame (3).

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