A detection device for precise processing of a plate

Abstract

The utility model discloses a kind of detection devices for plate precision machining, including fixed support and the mobile support slidingly connected with fixed support, one end of fixed support is fixedly connected with cylinder, the working end of cylinder is fixedly connected in mobile support, and installation column is connected on mobile support, the end of installation column is provided with linear switch inductor, linear switch inductor is measured to plate processing surface position data by contacting plate processing surface, this plate precision machining detection device is provided with movable micron level linear switch inductor, linear switch inductor and plate processing surface contact can obtain accurate position data, detection precision is high, in plate milling machining or grinding machining process, the position of plate processing surface is measured regularly intermittently multiple times, plate plane real-time processing size is obtained, operator can decide precision machining feed quantity according to plate real-time processing size, improve product processing quality.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal machining and inspection technology, and in particular to a detection device for precision sheet metal machining. Background Technology

[0002] In precision machining processes such as sheet metal milling and grinding, real-time measurement of workpiece dimensions is a crucial step in ensuring machining accuracy. However, traditional measurement methods have significant drawbacks:

[0003] (1) Manual measurement is inefficient and prone to errors. Currently, operators need to frequently use tools such as calipers and micrometers for manual measurement, which is not only inefficient, but also greatly affected by human factors. Due to the different feel and force application habits of different operators, the measurement data is prone to fluctuations. Especially in batch processing, repeated measurements further increase time costs and the risk of human error. (2) Traditional machine tool measurement functions are insufficient. For equipment such as double-head milling machines, the measurement accuracy of traditional tool setters or contact probes is limited and relies on manual intervention. It is impossible to achieve real-time dimensional feedback during the processing, and it is difficult to stably control the accuracy to the level of 0.01mm. Utility Model Content

[0004] This invention addresses the issue of inaccurate dimensional measurements during precision machining processes such as milling and grinding of sheet metal in the prior art, by proposing a detection device for precision machining of sheet metal.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A detection device for precision machining of sheet metal includes a fixed bracket and a movable bracket slidably connected to the fixed bracket. A cylinder is fixedly connected to one end of the fixed bracket, and the working end of the cylinder is fixedly connected to the movable bracket. A mounting column is connected to the movable bracket, and a linear switch sensor is provided at the end of the mounting column away from the cylinder. The cylinder is used to adjust the position of the linear switch sensor to achieve contact or separation between the linear switch sensor and the sheet metal machining surface. The linear switch sensor measures the position data of the sheet metal machining surface by contacting the sheet metal machining surface.

[0007] Preferably, the fixed bracket is provided with a guide rail and a slider that matches the guide rail. The extension direction of the guide rail is parallel to or coincides with the axial direction of the cylinder, and the movable bracket is fixedly connected to the slider.

[0008] Preferably, a stop pin is provided on the side of the movable bracket where the mounting column is installed, and an adjusting bolt is provided on the end of the fixed bracket away from the cylinder. The position of the adjusting bolt corresponds to the position of the stop pin, and the stop pin is used to contact the end of the adjusting bolt to limit the movement of the movable bracket.

[0009] Preferably, the adjusting bolt and the fixed bracket are connected by threads, the axis of the adjusting bolt is parallel to or coincides with the axis of the cylinder, and the position of the adjusting bolt end is adjusted by rotating the adjusting bolt.

[0010] Preferably, the detection device for precision machining of sheet metal also includes a dust cover, which surrounds the fixed bracket from four directions to form an active space. The guide rail, slider, and movable bracket are located inside the active space, and the end of the mounting column with the linear switch sensor extends out from the active space.

[0011] Preferably, connecting brackets are provided on both sides of the fixed bracket, and connecting brackets are provided with connecting holes. The part of the connecting bracket with connecting holes extends out from inside the dust cover.

[0012] Preferably, the dust cover is made of transparent plastic.

[0013] Preferably, the output terminal of the linear switching sensor is connected to at least one input terminal of the machine tool to realize data transmission between the linear switching sensor and the machine tool.

[0014] The beneficial effects of this utility model are:

[0015] (1) The detection device for precision machining of this sheet metal is equipped with a movable micron-level linear switch sensor. The installation rod and the linear switch sensor are moved by the cylinder, so that the linear switch sensor comes into contact with the sheet metal processing surface, thereby obtaining accurate position data of the sheet metal processing surface and achieving high detection accuracy.

[0016] (2) This precision machining detection device for sheet metal can be installed on a machine tool. During the milling or grinding process of sheet metal, the position of the sheet metal processing surface is measured repeatedly and intermittently to obtain the real-time processing dimensions of the sheet metal plane. The operator can determine the precision machining feed amount based on the real-time processing dimensions of the sheet metal to improve the product processing quality.

[0017] (3) The linear switch sensor of the detection device for precision machining of sheet metal can transmit data to the machine tool. It can compare the actual machining amount of the sheet metal surface with the machining amount set by the machine tool to obtain the tool tip wear, thereby optimizing the tool position or machining parameters of the machining system and compensating for tool tip wear to ensure machining accuracy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of the detection device used for precision machining of this sheet metal.

[0019] Figure 2 This is a schematic diagram of the side structure of the detection device used for precision machining of this sheet metal;

[0020] Figure 3This is a schematic diagram of the detection device (without the dust cover) used for precision machining of this sheet metal.

[0021] Figure 4 This is a schematic diagram of the working operation of the detection device used for precision machining of this sheet metal.

[0022] In the diagram: 1. Fixed bracket; 2. Dust cover; 3. Cylinder; 4. Mounting column; 5. Linear switch sensor; 6. Guide rail; 7. Slider; 8. Moving bracket; 9. Machined surface; 81. Stop pin; 11. First fixed plate; 12. Connecting bracket; 13. Second fixed plate; 14. Adjusting bolt. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-3 A detection device for precision machining of sheet metal includes a fixed bracket 1. A first fixed plate 11 is fixedly connected to one end of the fixed bracket 1, and a second fixed plate 13 is fixedly connected to the other end of the fixed bracket 1. The first fixed plate 11 and the second fixed plate 13 are respectively fixedly connected to the second fixed plate 13 by screws. Connecting brackets 12 are conveniently provided on both sides of the fixed bracket 1. Connecting brackets 12 are provided with connecting holes for connecting the precision machining detection device to a corresponding machine tool.

[0025] A cylinder 3 is provided on the first fixing plate 11, and the cylinder 3 is fixedly connected to the side of the first fixing plate 11 away from the second fixing plate 13. The first fixing plate 11 is provided with a through hole for the working end of the cylinder 3 to pass through, and the working end of the cylinder 3 extends through the first fixing plate 11 to the space between the first fixing plate 11 and the second fixing plate 13.

[0026] Furthermore, a guide rail 6 is provided between the first fixed plate 11 and the second fixed plate 13, and the extending direction of the guide rail 6 is parallel to or coincides with the axial direction of the cylinder 3. A slider 7 matching the guide rail 6 is provided on the guide rail 6, and the slider 7 can slide along the extending direction of the guide rail 6. The working end of the cylinder 3 is fixedly connected to the movable bracket 8, and the movable bracket 8 and the slider 7 are fixedly connected by screws.

[0027] A mounting column 4 is connected to the movable bracket 8, and the axis of the mounting column 4 is parallel to or coincides with the axis of the cylinder 3. A linear switch sensor 5 is provided at the end of the mounting column 4 away from the cylinder 3. The position of the linear switch sensor 5 can be adjusted by retracting the cylinder 3, so as to achieve contact or separation between the linear switch sensor 5 and the sheet metal processing surface 9. The linear switch sensor 5 measures the position data of the sheet metal processing surface by contacting the sheet metal processing surface.

[0028] The linear switch sensor 5 in this embodiment is a mechatronic measuring device in the prior art. It is a composite sensor that simultaneously achieves position detection and precise displacement measurement through mechanical contact triggering. The linear switch sensor 5 generally includes a high-sensitivity mechanical probe, a displacement measurement unit, and a signal output module. The mechanical probe contacts the workpiece surface, the displacement measurement unit locks the measurement reference point after the mechanical probe contacts the workpiece surface, and measures the actual contact displacement through a grating or inductor unit. The signal output module synchronously outputs a switch signal and the displacement value. The signal output module is electrically connected to the machine tool interface, enabling real-time communication between the linear switch sensor 5 and the CNC system. The CNC system automatically adjusts the tool path based on the measurement results to improve machining quality.

[0029] When the probe of the linear switch sensor 5 contacts the workpiece, a trigger signal is immediately generated. Then, the precise displacement value of the contact point is fed back in real time through the built-in displacement measurement unit (such as a grating or inductive sensor). This linear switch sensor 5 has a measurement accuracy at the micrometer level. If the displacement measurement unit is a grating encoder, its resolution can reach 0.1 μm; if the displacement measurement unit is an inductive displacement sensor, its repeatability is ±1 μm.

[0030] When the detection device for precision sheet metal machining is in operation, cylinder 3 first moves the movable support 8, mounting column 4, and linear switch sensor 5, causing the probe of linear switch sensor 5 to contact the machining surface 9 of the sheet metal. Linear switch sensor 5 immediately generates a trigger signal and obtains the measurement reference point of the machining surface 9 through the displacement measurement unit. Then, cylinder 3 moves linear switch sensor 5 away from the machining surface 9. During the grinding or milling process of the sheet metal surface, cylinder 3 can push linear switch sensor 5 to contact the machining surface again to obtain machining data of the machining surface 9. During sheet metal machining, the linear switch sensor 5 can perform multiple detections, with a detection time interval of 8-9 seconds, to obtain real-time machining data of the machining surface 9.

[0031] refer to Figure 2 An adjusting bolt 14 is provided at the end of the fixed bracket 1 away from the cylinder 3. The adjusting bolt 14 is threadedly connected to the fixed bracket 1, and the axis of the adjusting bolt 14 is parallel to or coincides with the axis of the cylinder 3. A stop pin 81 is provided on the side of the movable bracket 8 where the mounting column 4 is installed. The stop pin 81 corresponds to the position of the adjusting bolt 14.

[0032] When cylinder 3 pushes the movable bracket 8 to its limit position, the stop pin 81 on the movable bracket 8 contacts the end of the adjusting bolt 14, thereby limiting the movable bracket 8. The position of the end of the adjusting bolt 14 can be adjusted by rotating the adjusting bolt 14, thereby adjusting the position of the mounting post 4 and the linear switch sensor 5. During measurement, the position of the probe at the end of the linear switch sensor 5 can be adjusted to compensate for wear at the end of the linear switch sensor 5.

[0033] In this embodiment, the detection device for precision machining of sheet metal also includes a dust cover 2. The dust cover 2 surrounds the fixed bracket 1 from four directions: top, two sides, and one end face, and forms a movable space below the fixed bracket 1. The guide rail 6, slider 7, and movable bracket 8 are all located inside the movable space formed by the dust cover 2. The dust cover 2 is used to protect the guide rail 6, slider 7, and movable bracket 8, reduce the entry of machining cuttings or dust into the dust cover 2, and maintain the smooth movement of the movable bracket 8.

[0034] The dust cover 2 has a through hole on its end face for accommodating the mounting post 4. The end of the mounting post 4 on which the linear switch sensor 5 is mounted extends out from the movable space of the dust cover 2.

[0035] In this embodiment, the dust cover 2 is made of transparent plastic, which is lightweight and allows for easy observation of the components inside the dust cover 2.

[0036] In this embodiment, the part of the connecting bracket 12 with the connecting hole extends out from inside the dust cover 2, which facilitates the installation of the entire detection device.

[0037] The process of using the detection device for precision machining of this sheet metal:

[0038] refer to Figure 4 This precision machining detection device for sheet metal can be installed on a machine tool. A linear switch sensor 5 faces the machining surface 9 of the sheet metal. A cylinder 3 drives the mounting column 4 and the linear switch sensor 5 to move, bringing the linear switch sensor 5 into contact with the machining surface 9. The linear switch sensor 5 immediately generates a trigger signal, and the displacement measurement unit obtains the measurement reference position of the machining surface 9. Contact detection of the machining surface 9 is performed at 8-second intervals. During the grinding or milling process of the sheet metal surface, the linear switch sensor 5 performs contact detection multiple times on the machining surface 9, obtaining real-time machining data. The operator can determine the precision machining feed rate based on the real-time machining dimensions of the sheet metal, improving product machining quality.

[0039] The number of detection devices used for precision machining of this sheet metal can be multiple, which facilitates overall machining inspection and flatness inspection of large flat surfaces.

[0040] Furthermore, the detection device for precision machining of sheet metal can transmit the detection data to the CNC system of the machine tool. The CNC system can compare the actual machining amount of the sheet metal surface with the machining amount set by the machine tool to obtain the tool tip wear amount, and then optimize the tool position or machining parameters of the machining system to compensate for tool tip wear and ensure machining accuracy.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A detection device for precision machining of sheet metal, comprising a fixed bracket (1) and a movable bracket (8) slidably connected to the fixed bracket (1), characterized in that, A cylinder (3) is fixedly connected to one end of the fixed bracket (1). The working end of the cylinder (3) is fixedly connected to the movable bracket (8). A mounting column (4) is connected to the movable bracket (8). A linear switch sensor (5) is provided at the end of the mounting column (4) away from the cylinder (3). The cylinder (3) is used to adjust the position of the linear switch sensor (5) to achieve contact or separation between the linear switch sensor (5) and the plate processing surface (9). The linear switch sensor (5) measures the position data of the plate processing surface by contacting the plate processing surface. The fixed bracket (1) is provided with a guide rail (6) and a slider (7) that matches the guide rail (6). The extension direction of the guide rail (6) is parallel to or coincides with the axial direction of the cylinder (3). The movable bracket (8) is fixedly connected to the slider (7). The movable bracket (8) is provided with a stop pin (81) on one side where the mounting column (4) is installed, and the fixed bracket (1) is provided with an adjusting bolt (14) at the end away from the cylinder (3). The position of the adjusting bolt (14) corresponds to the position of the stop pin (81). The stop pin (81) is used to contact the end of the adjusting bolt (14) to limit the movable bracket (8). It also includes a dust cover (2), which surrounds the fixed bracket (1) from four directions to form an active space. The guide rail (6), slider (7) and movable bracket (8) are located inside the active space. The end of the mounting column (4) with the linear switch sensor (5) extends out from the active space.

2. The detection device for precision machining of sheet metal according to claim 1, characterized in that, The adjusting bolt (14) is connected to the fixed bracket (1) by a thread. The axis of the adjusting bolt (14) is parallel or coincident with the axis of the cylinder (3). The position of the end of the adjusting bolt (14) can be adjusted by rotating the adjusting bolt (14).

3. The detection device for precision machining of sheet metal according to claim 1, characterized in that, The fixed bracket (1) is provided with connecting brackets (12) on both sides respectively. The connecting brackets (12) are provided with connecting holes, and the part of the connecting brackets (12) with connecting holes extends out from the inside of the dust cover (2).

4. The detection device for precision machining of sheet metal according to claim 3, characterized in that, The dust cover (2) is made of transparent plastic.

5. The detection device for precision machining of sheet metal according to any one of claims 1-4, characterized in that, The output terminal of the linear switch sensor (5) is connected to at least one input terminal of the machine tool to realize data transmission between the linear switch sensor (5) and the machine tool.

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