An optical detection and acquisition device

Abstract

The present invention discloses an optical detection and acquisition device, which relates to the field of optical detection. A bracket is fixed on the bottom plate, a cylinder is fixed on the bracket, an output end of the cylinder is fixed with a fixing plate, and an adjusting mechanism is arranged below the fixing plate. This optical detection and acquisition device adopts an adaptive adjusting mechanism, which can automatically adjust the position of the optical detection probe according to the size of the workpiece, so as to meet the detection of annular workpieces of different sizes and improve the adaptability of the device. Specifically, the adjusting mechanism can be driven to move by the cylinder. When the ejector rod contacts the tray, the cylinder continues to extend, and with the transmission of the connecting rod, the movable block, the mounting plate and the optical detection probe move, so as to realize the automatic adjustment of the position of the optical detection probe. The positioning can be realized until the ball contacts the inner wall of the tray, so as to ensure the normal subsequent detection.

Description

Technical Field

[0001] The present invention relates to the technical field of optical detection, and particularly to an optical detection and acquisition device. Background Art

[0002] Optical detection is a method that uses optical principles and technical means to perform non-contact, high-precision, and high-efficiency measurement and detection on the object to be measured. It is widely used in industrial production. Through optical detection, key indicators such as surface defects, dimensional accuracy, and color differences of workpieces can be detected to ensure product quality.

[0003] The existing optical detection devices for industrial products mainly detect the surface of the product through an optical detection probe. In the actual use process, for workpieces with a ring structure, in order to ensure that the optical detection probe can accurately detect the workpiece, it is necessary to adjust the position of the optical detection probe according to the size of the ring workpiece, which is rather troublesome. Therefore, in view of the above problems, an optical detection and acquisition device is designed to better meet the actual use requirements. Summary of the Invention

[0004] The purpose of the present invention is to provide an optical detection and acquisition device to solve the problems put forward in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An optical detection and acquisition device, including a bottom plate and a bracket. The bracket is fixed on the bottom plate, and a cylinder is fixed on the bracket. The output end of the cylinder is fixed with a fixing plate. An adjusting mechanism is arranged below the fixing plate. The adjusting mechanism includes a counterweight, a sliding rod, a cross rod, a movable block, a connecting rod, a mounting plate, an optical detection probe, a positioning plate, a ball, and a top rod. The counterweight is arranged below the fixing plate. The upper end surface of the counterweight is symmetrically fixed with sliding rods on the left and right, and the sliding rods are slidably connected with the fixing plate. The left and right sides of the counterweight are symmetrically fixed with cross rods. The cross rods are slidably connected with movable blocks. One end of the connecting rod is rotatably connected with the movable block, and the other end of the connecting rod is rotatably connected to the fixing plate. The lower end surface of the movable block is fixed with a mounting plate. The lower end surface of the mounting plate is fixed with an optical detection probe. The lower end surface of the mounting plate is also fixed with a positioning plate. The positioning plate is provided with a rollable ball. The lower end surface of the counterweight is fixed with a top rod, and the lower end surface of the top rod is lower than the lower end surface of the positioning plate. When the cylinder extends to drive the adjusting mechanism to move downward, when the top rod contacts the tray, the counterweight moves upward relative to the fixing plate. With the transmission of the connecting rod, the positions of the movable block, the mounting plate, the optical detection probe, the positioning plate, and the ball can be adjusted until the ball contacts the tray to achieve limiting. At this time, the optical detection probe is located above the workpiece for detection.

[0006] Preferably, a rotating mechanism is fixed on the bottom plate, a positioning mechanism is installed on the rotating mechanism, and a workpiece is placed on the positioning mechanism. Through the above structure, a basic guarantee can be provided for the positioning and rotation of the workpiece, thus facilitating the subsequent detection.

[0007] Preferably, the rotating mechanism includes a circular plate, a vertical rod, a movable cylinder, a spring, a pressure sensor, a spiral groove, a fixed rod and a convex shaft. The circular plate is connected to the bottom plate by a bearing, and a vertical rod is fixed on the upper end surface of the circular plate. The vertical rod is slidably connected to the movable cylinder. Through the sliding action between the vertical rod and the movable cylinder, the total length of the vertical rod and the movable cylinder can be adjusted, thus providing a basic guarantee for the normal operation of the device.

[0008] Preferably, one end of the spring is fixed to the circular plate, and the other end of the spring is fixed to the lower end surface of the movable cylinder. Through the elastic action of the spring, a basic acting force can be provided for the automatic reset of the movable cylinder, thus ensuring the normal operation of the device.

[0009] Preferably, a pressure sensor is fixed inside the movable cylinder, and the pressure sensor is located directly above the vertical rod. The pressure sensor is electrically connected to the PLC controller. A spiral groove is provided on the outer wall of the movable cylinder. During the operation of the device, when the vertical rod contacts the pressure sensor, a signal can be transmitted, providing a basic guarantee for the automatic control of the cylinder.

[0010] Preferably, the fixed rod is fixed on the bottom plate, and a convex shaft is fixed on the fixed rod. The convex shaft is slidably connected to the spiral groove. When the movable cylinder moves, in cooperation with the sliding action between the convex shaft and the spiral groove, a basic acting force can be provided for the rotation of the movable cylinder, the positioning mechanism and the workpiece, so as to realize the comprehensive detection of the workpiece.

[0011] Preferably, the positioning mechanism includes a tray, a limiting frame, a connecting seat, a positioning seat and a fastening rubber ring. The limiting frames are fixed on the tray at equal angles. A workpiece is placed between the limiting frames and the tray, and an anti-slip rubber pad is provided on the contact surface between the limiting frames and the workpiece. Through the action of the limiting frames and the tray, a basic guarantee can be provided for the positioning of the workpiece, thus ensuring the stability during the subsequent workpiece detection.

[0012] Preferably, the connecting seat is fixed to the lower end surface of the tray, and the connecting seat is nested with the positioning seat. The positioning seat is fixed to the upper end of the movable cylinder. Through the nesting action between the connecting seat and the positioning seat, the positioning installation of the tray can be conveniently realized, and the disassembly and assembly of the tray can be facilitated, improving the convenience of tray replacement.

[0013] Preferably, a fastening rubber ring is fixed on the outer side of the positioning seat, and there is an interference fit between the fastening rubber ring and the connecting seat. When nesting the connecting seat and the positioning seat, the fastening rubber ring can ensure the stability of the connection between the connecting seat and the positioning seat, thus providing a basic guarantee for the normal use of the device.

[0014] Preferably, the optical detection probe is electrically connected to the detection host, and the storage module in the detection host collects and stores the collected information. Through the action of the optical detection probe, the detection of the workpiece can be realized.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The optical detection and acquisition device adopts an adaptive adjustment mechanism, which can automatically adjust the position of the optical detection probe according to the size of the workpiece, so as to meet the detection of annular workpieces of different sizes and improve the adaptability of the device. Specifically, the cylinder can drive the adjustment mechanism to move. When the ejector rod contacts the tray, the cylinder continues to extend, and with the transmission action of the connecting rod, the movable block, the mounting plate and the optical detection probe move, so as to realize the automatic adjustment of the position of the optical detection probe. When the ball contacts the inner wall of the tray, positioning can be achieved for subsequent normal detection.

[0017] 2. The optical detection and acquisition device adopts a linkage rotation mechanism, which can realize the automatic rotation of the workpiece after the position of the optical detection probe is adjusted, thus providing a basic guarantee for the comprehensive detection of the workpiece. Specifically, after the ball contacts the inner wall of the tray for positioning, the cylinder continues to extend, so that the tray and the movable cylinder move downward relative to the vertical rod under force. With the sliding action between the convex shaft and the spiral groove, the vertical rod, the movable cylinder, the tray and the workpiece can rotate, and the rotation angle is greater than 360 degrees, so as to realize the comprehensive detection of the workpiece.

[0018] 3. The optical detection and acquisition device adopts a nested installation structure, which can realize the quick disassembly and replacement of the tray, so as to adapt to the installation and positioning of different workpieces. Specifically, after selecting a suitable tray, positioning can be achieved by nesting the connecting seat and the positioning seat. With the fastening effect between the fastening rubber ring and the connecting seat, the stability of the connection between the connecting seat and the positioning seat can be ensured. The whole operation is convenient and simple, and the replacement efficiency of the tray can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view three-dimensional structure diagram of the overall composition of the device of the present invention;

[0020] Figure 2 It is a bottom view three-dimensional structure diagram of the overall composition of the device of the present invention;

[0021] Figure 3 This is a schematic diagram of the three-dimensional perspective view from the bottom of the rotation mechanism and the positioning mechanism of the present invention;

[0022] Figure 4 This is a schematic diagram of the three-dimensional perspective view of the front view cross-section of the rotation mechanism of the present invention;

[0023] Figure 5 This is a schematic diagram of the three-dimensional perspective view of the front view of the adjustment mechanism of the present invention;

[0024] Figure 6 This is a schematic diagram of the three-dimensional perspective view from the bottom of the adjustment mechanism of the present invention.

[0025] In the figure: 1, bottom plate; 2, bracket; 3, rotation mechanism; 301, circular plate; 302, vertical rod; 303, movable cylinder; 304, spring; 305, pressure sensor; 306, spiral groove; 307, fixed rod; 308, convex shaft; 4, positioning mechanism; 401, tray; 402, limit frame; 403, connecting seat; 404, positioning seat; 405, fastening rubber ring; 5, workpiece; 6, cylinder; 7, fixing plate; 8, adjustment mechanism; 801, counterweight; 802, sliding rod; 803, cross bar; 804, movable block; 805, connecting rod; 806, mounting plate; 807, optical detection probe; 808, positioning plate; 809, ball; 810, ejector rod. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1 - 6 , the present invention provides a technical solution: an optical detection and acquisition device, including a bottom plate 1 and a bracket 2, the bracket 2 is fixed on the bottom plate 1, a cylinder 6 is fixed on the bracket 2, the output end of the cylinder 6 is fixed with a fixing plate 7, and an adjustment mechanism 8 is arranged below the fixing plate 7.

[0028] The positioning mechanism 4 includes a tray 401, a limit frame 402, a connecting seat 403, a positioning seat 404 and a fastening rubber ring 405. The limit frame 402 is fixed on the tray 401 at equal angles, and a workpiece 5 is placed between the limit frame 402 and the tray 401. An anti-slip rubber pad is provided on the contact surface between the limit frame 402 and the workpiece 5. The lower end surface of the tray 401 is fixed with the connecting seat 403, and the connecting seat 403 and the positioning seat 404 are nested. The positioning seat 404 is fixed on the upper end of the movable cylinder 303. A fastening rubber ring 405 is fixed on the outside of the positioning seat 404, and the fastening rubber ring 405 and the connecting seat 403 are in interference connection. The optical detection probe 807 is electrically connected to the detection host, and the storage module in the detection host collects and stores the collected information.

[0029] When using the optical detection and acquisition device, as Figures 1 - 6 shown, first select a suitable tray 401 for installation according to the size of the workpiece 5. When installing the tray 401, through the nesting effect between the connecting seat 403 and the positioning seat 404, the installation positioning of the tray 401 can be realized. With the interference connection between the fastening rubber ring 405 and the connecting seat 403, the fastening effect between the connecting seat 403 and the positioning seat 404 can be realized, ensuring the stability of the tray 401 installation. After the tray 401 is installed, place the workpiece 5 to be detected between the limit frame 402 and the tray 401. Through the action of the limit frame 402 and the tray 401, the positioning of the workpiece 5 can be realized. And through the action of the anti-slip rubber pad on the limit frame 402, not only the stability of the workpiece 5 can be ensured, but also the edge of the workpiece 5 can be protected to avoid friction damage to the edge of the workpiece 5 by the limit frame 402.

[0030] The adjusting mechanism 8 includes a counterweight 801, a sliding rod 802, a cross rod 803, a movable block 804, a connecting rod 805, a mounting plate 806, an optical detection probe 807, a positioning plate 808, a ball 809 and a push rod 810. The counterweight 801 is arranged below the fixed plate 7. Symmetrically fixed on the upper end surface of the counterweight 801 are the sliding rods 802, and the sliding rods 802 are slidably connected to the fixed plate 7. Symmetrically fixed on the sides of the counterweight 801 are the cross rods 803. Slidably connected to the cross rods 803 are the movable blocks 804. One end of the connecting rod 805 is rotatably connected to the movable block 804, and the other end of the connecting rod 805 is rotatably connected to the fixed plate 7. Fixed to the lower end surface of the movable block 804 is the mounting plate 806. Fixed to the lower end surface of the mounting plate 806 is the optical detection probe 807. Also fixed to the lower end surface of the mounting plate 806 is the positioning plate 808. Mounted on the positioning plate 808 are the rollable balls 809. Fixed to the lower end surface of the counterweight 801 is the push rod 810, and the lower end surface of the push rod 810 is lower than the lower end surface of the positioning plate 808. By the extension of the air cylinder 6, the adjusting mechanism 8 is driven to move downward. When the push rod 810 contacts the tray 401, the counterweight 801 moves upward relative to the fixed plate 7. With the transmission of the connecting rod 805, the positions of the movable block 804, the mounting plate 806, the optical detection probe 807, the positioning plate 808 and the ball 809 can be adjusted until the ball 809 contacts the tray 401 to achieve limiting. At this time, the optical detection probe 807 is located above the workpiece 5 for detection;

[0031] After the workpiece 5 is installed, as Figures 1 - 6 shown, by controlling the extension of the air cylinder 6, the fixed plate 7 and the adjusting mechanism 8 are driven to move downward. When the push rod 810 contacts the tray 401, at this time the push rod 810 is limited and no longer moves downward. By continuously extending the air cylinder 6, the fixed plate 7 can move downward relative to the counterweight 801. With the sliding guiding function between the sliding rod 802 and the fixed plate 7, the stability of the movement of the fixed plate 7 can be ensured, and the distance between the fixed plate 7 and the counterweight 801 is reduced. With the transmission of the connecting rod 805, the movable block 804 slides on the cross rod 803, thereby adjusting the position of the movable block 804. When the movable block 804 moves, it synchronously drives the mounting plate 806, the optical detection probe 807, the positioning plate 808 and the ball 809 to move. When the ball 809 contacts the tray 401, the limiting function is achieved. At this time, the optical detection probe 807 is exactly located above the workpiece 5 for subsequent detection;

[0032] A rotating mechanism 3 is fixed on the bottom plate 1, a positioning mechanism 4 is installed on the rotating mechanism 3, and a workpiece 5 is placed on the positioning mechanism 4; the rotating mechanism 3 includes a circular plate 301, a vertical rod 302, a movable cylinder 303, a spring 304, a pressure sensor 305, a spiral groove 306, a fixed rod 307 and a convex shaft 308. The circular plate 301 is connected to the bottom plate 1 by a bearing, and a vertical rod 302 is fixed on the upper end surface of the circular plate 301, and the vertical rod 302 is slidably connected to the movable cylinder 303; one end of the circular plate 301 is fixedly connected to one end of the spring 304, and the other end of the spring 304 is fixed on the lower end surface of the movable cylinder 303; a pressure sensor 305 is fixed inside the movable cylinder 303, and the pressure sensor 305 is located directly above the vertical rod 302, and the pressure sensor 305 is electrically connected to the PLC controller. A spiral groove 306 is formed on the outer wall of the movable cylinder 303; the fixed rod 307 is fixed on the bottom plate 1, and a convex shaft 308 is fixed on the fixed rod 307, and the convex shaft 308 is slidably connected to the spiral groove 306;

[0033] When the ball 809 contacts the tray 401 to achieve positioning, as Figures 1 - 6 shown, at this time, the air cylinder 6 continues to extend. Since the distance between the fixed plate 7 and the counterweight 801 is limited, when the air cylinder 6 continues to extend, the ejector rod 810 generates a downward pressure on the tray 401, so that the movable cylinder 303 moves downward relative to the circular plate 301 under force. With the sliding guiding effect between the movable cylinder 303 and the vertical rod 302, the stability of the movement of the movable cylinder 303 can be ensured. When the movable cylinder 303 moves, with the sliding action between the convex shaft 308 and the spiral groove 306, the movable cylinder 303, the vertical rod 302 and the circular plate 301 are forced to rotate synchronously, so as to drive the tray 401 and the workpiece 5 to rotate. By rotating the workpiece 5, it is convenient for the optical detection probe 807 to comprehensively detect the workpiece 5, and the detected data is transmitted to the storage module in the detection host for collection and storage for the staff to view. And when the movable cylinder 303 slides with the vertical rod 302, when the vertical rod 302 contacts the pressure sensor 305 to generate pressure, at this time, the pressure sensor 305 transmits a signal to the PLC controller, so as to control the air cylinder 6 to stop extending and complete the detection. At this time, the air cylinder 6 contracts to drive the device to reset. When the ejector rod 810 no longer generates pressure on the tray 401, at this time, through the elastic action of the spring 304, the movable cylinder 303 can be reset. At this time, the air cylinder 6 continues to contract. Due to the gravity of the counterweight 801, the fixed plate 7 moves upward relative to the counterweight 801 at this time, so that the mounting plate 806, the optical detection probe 807, the positioning plate 808 and the ball 809 are reset. After the mounting plate 806, the optical detection probe 807, the positioning plate 808 and the ball 809 are reset, at this time, the air cylinder 6 continues to contract, and the ejector rod 810 can be separated and reset from the tray 401 for the next detection. This is the working principle of the optical detection and acquisition device.

[0034] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An optical detection and acquisition device, comprising a bottom plate and a bracket, wherein the bracket is fixed on the bottom plate, and is characterized in that: A cylinder is fixed on the bracket, and a fixing plate is fixed at the output end of the cylinder. An adjusting mechanism is arranged below the fixing plate. The adjusting mechanism includes a counterweight block arranged below the fixing plate. Slide bars are symmetrically fixed on the left and right of the upper end face of the counterweight block, and the slide bars are slidably connected to the fixing plate. Cross bars are symmetrically fixed on the left and right sides of the counterweight block. A movable block is slidably connected to the cross bars. One end of the connecting rod is rotatably connected to the movable block, and the other end of the connecting rod is rotatably connected to the fixing plate. An installation plate is fixed on the lower end face of the movable block. An optical detection probe is fixed on the lower end face of the installation plate. A positioning plate is also fixed on the lower end face of the installation plate. Rollable balls are installed on the positioning plate. A top rod is fixed on the lower end face of the counterweight block, and the lower end face of the top rod is lower than the lower end face of the positioning plate. When the cylinder extends to drive the adjusting mechanism to move downward, when the top rod contacts the tray, the counterweight block moves upward relative to the fixing plate. With the transmission of the connecting rod, the positions of the movable block, the installation plate, the optical detection probe, the positioning plate and the balls can be adjusted until the balls contact the tray to achieve limiting. At this time, the optical detection probe is located above the workpiece for detection. A rotating mechanism is fixed on the bottom plate, a positioning mechanism is installed on the rotating mechanism, and a workpiece is placed on the positioning mechanism. The rotating mechanism includes a circular plate connected to the bottom plate through a bearing. A vertical rod is fixed on the upper end face of the circular plate, and the vertical rod is slidably connected to the movable cylinder. One end of the circular plate is fixed to one end of a spring, and the other end of the spring is fixed to the lower end face of the movable cylinder. A pressure sensor is fixed in the movable cylinder, and the pressure sensor is located directly above the vertical rod and is electrically connected to a PLC controller. A spiral groove is formed on the outer wall of the movable cylinder. A fixed rod is fixed on the bottom plate, and a convex shaft is fixed on the fixed rod, and the convex shaft is slidably connected to the spiral groove. The positioning mechanism includes a tray.

2. An optical detection and acquisition device according to claim 1, characterized in that: The positioning mechanism includes a limiting frame, a connecting seat, a positioning seat and a fastening rubber ring. Limiting frames are fixed on the tray at equal angles. A workpiece is placed between the limiting frames and the tray, and an anti-slip rubber pad is arranged on the contact surface between the limiting frames and the workpiece.

3. An optical detection and acquisition device according to claim 2, characterized in that: A connecting seat is fixed on the lower end face of the tray, and the connecting seat is nested with the positioning seat, and the positioning seat is fixed on the upper end of the movable cylinder.

4. An optical detection and acquisition device according to claim 2, characterized in that: A fastening rubber ring is fixed on the outside of the positioning seat, and the fastening rubber ring is in interference connection with the connecting seat.

5. An optical detection and acquisition device according to claim 1, characterized in that: The optical detection probe is electrically connected to the detection host, and the storage module in the detection host collects and stores the collected information.

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