A laser cladding surface flatness measuring mechanism

Abstract

The utility model discloses a kind of laser cladding surface flatness measuring mechanism, including bottom plate, the mounting seat that can be moved along its width direction is equipped on the bottom plate, positioning member is equipped on the mounting seat, and the mounting plate that can be moved along its length direction is also equipped on the bottom plate, the side surface of the mounting plate is equipped with fixing frame, elastic column is installed on the fixing frame, the telescopic end of the elastic column is equipped with detection rod, the side surface of detection rod is equipped with conducting strip, resistance rod is equipped on mounting plate with the contact of conducting strip;Conducting strip is electrically connected with resistor and power supply by wire.The laser cladding surface flatness measuring mechanism, simple structure can be measured by the change of resistance two end voltage to detect the flatness of highway, and the overall change of sample surface cladding layer flatness can be displayed according to waveform, the topographic data of cladding layer undulation is conveniently obtained, detection precision is high, low in cost, convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of laser cladding technology, specifically to a laser cladding surface flatness measurement mechanism. Background Technology

[0002] Laser cladding is an advanced surface treatment technology that can form a high-quality coating on metal surfaces, improving the metal's wear resistance, corrosion resistance, and high-temperature resistance. The thickness range of laser cladding is very wide, ranging from a few micrometers to several millimeters, depending on factors such as material properties, laser power, and scanning speed. During laser cladding, the laser beam generates a high-temperature region on the metal surface, melting the metal and fusing it with the cladding material to form a uniform coating.

[0003] Although laser cladding has significant advantages in improving material surfaces, and researchers both domestically and internationally have conducted numerous experiments and achieved many results, research on cladding on common material surfaces is scarce. Studies have found that the thicker the cladding layer, the more defects it contains, with surface unevenness being one of the main quality problems associated with laser cladding layers.

[0004] Traditional measurement methods have the following problems: 1. Existing online detection systems mostly use infrared thermometry or visual recognition, which cannot directly acquire morphological data with millimeter-level undulations; 2. Although non-contact optical measurement (such as laser interferometers) has high accuracy (±0.1μm), the equipment cost is expensive (>200,000 RMB), and the high reflectivity of the cladding surface easily causes signal distortion. Therefore, this application provides a laser cladding surface flatness measurement mechanism to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a laser cladding surface flatness measurement mechanism. It has a simple structure and can detect the flatness of the road by measuring the change in voltage across a resistor. It can also display the overall change in the flatness of the cladding layer on the sample surface according to the waveform, which is convenient for obtaining the morphological data of the cladding layer undulation. It has high detection accuracy, low cost, and is easy to use, and can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a laser cladding surface flatness measuring mechanism, comprising a base plate, a mounting seat movable along its width direction on the base plate, a positioning element on the mounting seat, and a mounting plate movable along its length direction on the base plate, a fixing frame on the side of the mounting plate, an elastic column mounted on the fixing frame, a detection rod on the telescopic end of the elastic column, a conductive sheet on the side of the detection rod, and a resistance rod in contact with the conductive sheet on the mounting plate; the conductive sheet is electrically connected to a resistor and a power supply via wires, the two ends of the resistor are electrically connected to an oscilloscope displaying the voltage waveform across the resistor via wires, and the bottom of the resistance rod is electrically connected to the power supply via wires.

[0007] As a preferred technical solution of this utility model, the upper surface of the base plate is provided with a sliding groove along its width direction, and the bottom of the mounting base is slidably disposed inside the sliding groove. An adjusting screw is rotatably disposed on the side of the base plate corresponding to the sliding groove, and the adjusting screw is threadedly connected to the mounting base.

[0008] As a preferred technical solution of this utility model, the positioning component includes several positioning plates and pressure plates. The positioning plates are arranged at one end of the upper surface of the mounting base along the length direction of the mounting base, and the pressure plates are arranged on the other side of the mounting base along the length direction of the mounting base.

[0009] As a preferred embodiment of this utility model, the lower end of the side of the pressure plate is movably inserted into the corresponding groove on the side of the mounting base, and the mounting base and the side corresponding to the pressure plate are rotatably provided with adjusting bolts, and the adjusting bolts are threadedly connected to the pressure plate.

[0010] As a preferred technical solution of this utility model, the upper surface of the base plate is provided with a driving screw and a sliding rod arranged in parallel, and the mounting base is located between the driving screw and the sliding rod. One end of the mounting plate is threadedly connected to the driving screw, and one end of the driving screw is provided with a servo motor that drives its rotation. The other end of the mounting plate is provided with a sliding sleeve that is slidably arranged on the sliding rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The laser cladding surface smoothness measuring mechanism of this utility model has a simple structure. It can detect the smoothness of the road by measuring the change in voltage across a resistor, and can display the overall change in the smoothness of the cladding layer on the sample surface according to the waveform. It is convenient to obtain the morphological data of the cladding layer undulation, with high detection accuracy, low cost and easy use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2This is a schematic diagram of the right-side structure of this utility model; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This is a circuit diagram of the present invention.

[0013] In the diagram: 1 base plate, 2 mounting base, 21 adjusting screw, 22 positioning plate, 23 pressure plate, 24 adjusting bolt, 3 mounting plate, 31 sliding sleeve, 32 fixing bracket, 4 servo motor, 41 drive screw, 5 sliding rod, 6 elastic column, 61 detection rod, 62 conductive sheet, 7 resistance rod, 8 resistor, 9 oscilloscope. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4 This utility model provides a technical solution: a laser cladding surface flatness measuring mechanism, including a base plate 1, a mounting seat 2 movable along its width direction on the base plate 1, a positioning element on the mounting seat 2, and a mounting plate 3 movable along its length direction on the base plate 1. A fixing frame 32 is provided on the side of the mounting plate 3, and an elastic column 6 is mounted on the fixing frame 32. A detection rod 61 is provided at the telescopic end of the elastic column 6, and a conductive sheet 62 is provided on the side of the detection rod 61. A resistance rod 7 in contact with the conductive sheet 62 is provided on the mounting plate 3. The conductive sheet 62 is electrically connected to a resistor 8 and a power supply via wires, and the two ends of the resistor 8 are electrically connected via wires. An oscilloscope 9 is connected to display the voltage waveform across resistor 8. The bottom of resistor 7 is electrically connected to the power supply via a wire. The sample is placed on mounting base 2, and the position of mounting base 2 is adjusted. Mounting base 2 moves the sample under detection rod 61, keeping detection rod 61 under the pressure of the sample. Detection rod 61 compresses elastic column 6, causing elastic column 6 to deform and shorten. When the sample surface is uneven, detection rod 61 causes conductive sheet 62 to fluctuate up and down. At this time, the resistance of resistor 7 connected in series in the circuit changes, and the voltage distributed by resistor 8 also changes. The waveform of oscilloscope 9 changes accordingly. The flatness of the sample surface is judged by the change of waveform of oscilloscope 9.

[0016] Furthermore, the upper surface of the base plate 1 is provided with a sliding groove along its width direction, and the bottom of the mounting base 2 is slidably disposed inside the sliding groove. An adjusting screw 21 is rotatably disposed on the side of the base plate 1 corresponding to the sliding groove. The adjusting screw 21 is threadedly connected to the mounting base 2. Rotating the adjusting screw 21 can drive the mounting base 2 to move, which facilitates the detection of different positions of the sample.

[0017] Furthermore, the positioning component includes several positioning plates 22 and pressure plates 23. The positioning plates 22 are disposed at one end of the upper surface of the mounting base 2 along the length direction of the mounting base 2, and the pressure plates 23 are disposed on the other side of the mounting base 2 along the length direction of the mounting base 2. The lower end of the side of the pressure plate 23 is movably inserted into the corresponding groove on the side of the mounting base 2. The mounting base 2 and the side of the pressure plate 23 are rotatably provided with adjusting bolts 24, and the adjusting bolts 24 are threadedly connected to the pressure plates 23. When the sample is placed on the mounting base 2, the adjusting bolts 24 are rotated, and the adjusting bolts 24 push the pressure plates 23 to move. The pressure plates 23 cooperate with the positioning plates 22 to squeeze and position the sample.

[0018] Furthermore, the upper surface of the base plate 1 is provided with a parallel drive screw 41 and a slide rod 5, and the mounting base 2 is located between the drive screw 41 and the slide rod 5. One end of the mounting plate 3 is threadedly connected to the drive screw 41, and one end of the drive screw 41 is provided with a servo motor 4 that drives its rotation. The other end of the mounting plate 3 is provided with a sliding sleeve 31 that is slidably disposed on the slide rod 5. The servo motor 4 drives the drive screw 41 to rotate. When the drive screw 41 rotates, it drives the mounting plate 3 to move. The mounting plate 3 drives the fixing frame 32 to move. The fixing frame 32 drives the elastic column 6 and the detection rod 61 to move, thereby causing the detection rod 61 to move on the sample surface. During the movement of the detection rod 61, the elastic column 6 pushes the detection rod 61 to always be in contact with the sample surface.

[0019] The servo motor 4 and oscilloscope 9 used in this utility model are common electrical components in the prior art. Their working methods and circuit structures are well-known technologies and will not be described in detail here. The conductive sheet 62 and the resistor rod 7 form a simple sliding rheostat. The sliding rheostat, resistor 8 and power supply are connected in series to form a simple closed loop. The oscilloscope 9 is connected in parallel with the resistor 8 to detect the voltage across the resistor 8.

[0020] When using: Place the sample on the mounting base 2, rotate the adjusting screw 21, the adjusting screw 21 drives the mounting base 2 to move, the mounting base 2 drives the sample to move under the detection rod 61, at this time the detection rod 61 is squeezed by the sample, the detection rod 61 squeezes the elastic column 6, the elastic column 6 deforms and shortens. Turn on the power of the oscilloscope 9 and control the servo motor 4 to work. The servo motor 4 drives the drive screw 41 to rotate. When the drive screw 41 rotates, it drives the mounting plate 3 to move. The mounting plate 3 drives the fixing frame 32 to move. The fixing frame 32 drives the elastic column 6 and the detection rod 61 to move, so that the detection rod 61 moves on the sample surface. During the movement of the detection rod 61, the elastic column 6 pushes the detection rod 61 to always be in contact with the sample surface. When there are pits on the sample surface, the detection rod 61 moves the conductive sheet 62 downward. At this time, the resistance of the resistor rod 7 connected in series in the circuit decreases, the voltage distributed by the resistor 8 increases, and the waveform on the oscilloscope 9 rises. Conversely, when there is a protrusion on the sample surface, the detection rod 61 moves the conductive sheet 62 upward. At this time, the resistance of the resistor rod 7 connected in series in the circuit increases, the voltage distributed by the resistor 8 decreases, and the waveform on the oscilloscope 9 points downward. Rotate the adjusting screw 21 to adjust the position of the mounting base 2 and the sample, so that the detection rod 61 is relatively displaced in the width direction of the sample. Then repeat the above steps to detect different positions of the sample.

[0021] This invention has a simple structure and can detect the smoothness of a road by measuring the change in voltage across resistor 8. It can also display the overall change in the smoothness of the cladding layer on the sample surface based on the waveform, making it convenient to obtain the morphological data of the cladding layer undulation. It has high detection accuracy, low cost, and is easy to use.

[0022] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser cladding surface flatness measuring mechanism, comprising a base plate (1), characterized in that: The base plate (1) is provided with a mounting seat (2) that can move along its width direction. The mounting seat (2) is provided with a positioning component. The base plate (1) is also provided with a mounting plate (3) that can move along its length direction. The mounting plate (3) is provided with a fixing frame (32) on its side. An elastic column (6) is installed on the fixing frame (32). The telescopic end of the elastic column (6) is provided with a detection rod (61). The side of the detection rod (61) is provided with a conductive sheet (62). The mounting plate (3) is provided with a resistance rod (7) that contacts the conductive sheet (62). The conductive sheet (62) is electrically connected to the resistor (8) and the power supply via wires. The two ends of the resistor (8) are electrically connected to an oscilloscope (9) that displays the voltage waveform across the resistor (8) via wires. The bottom of the resistor rod (7) is electrically connected to the power supply via wires.

2. The laser cladding surface flatness measuring mechanism according to claim 1, characterized in that: The upper surface of the base plate (1) is provided with a sliding groove along its width direction, and the bottom of the mounting base (2) is slidably disposed inside the sliding groove. The side of the base plate (1) corresponding to the sliding groove is rotatably provided with an adjusting screw (21), and the adjusting screw (21) is threadedly connected to the mounting base (2).

3. The laser cladding surface flatness measuring mechanism according to claim 1, characterized in that: The positioning component includes several positioning plates (22) and pressure plates (23). The positioning plates (22) are arranged at one end of the upper surface of the mounting base (2) along the length direction of the mounting base (2), and the pressure plates (23) are arranged on the other side of the mounting base (2) along the length direction of the mounting base (2).

4. The laser cladding surface flatness measuring mechanism according to claim 3, characterized in that: The lower side of the pressure plate (23) is movably inserted into the groove corresponding to the side of the mounting base (2). The mounting base (2) and the side corresponding to the pressure plate (23) are rotatably provided with adjusting bolts (24), and the adjusting bolts (24) are threadedly connected to the pressure plate (23).

5. The laser cladding surface flatness measuring mechanism according to claim 1, characterized in that: The upper surface of the base plate (1) is provided with a parallel drive screw (41) and a slide rod (5), and the mounting base (2) is located between the drive screw (41) and the slide rod (5). One end of the mounting plate (3) is threadedly connected to the drive screw (41), and one end of the drive screw (41) is provided with a servo motor (4) that drives it to rotate. The other end of the mounting plate (3) is provided with a sliding sleeve (31) that is slidably disposed on the slide rod (5).

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