Novel electronic control endoscope system lens image calibration device

Abstract

A novel electrically-controlled endoscope system lens image calibration device comprises a PLC, a fixing base, an electric linear sliding table, a motor speed reducing mechanism, a machine vision calibration plate and a fixing mechanism. The fixed seats are mounted on the calibration workbench, the first electric linear sliding table is mounted behind one of the fixed seats, and the second electric linear sliding table is mounted on the fixed seat; the third electric linear sliding table is installed on the second electric linear sliding table sliding block, the first motor speed reducing mechanism is installed on the third electric linear sliding table sliding block, a supporting plate is installed on a power output shaft of the first motor speed reducing mechanism, and the second motor speed reducing mechanism is installed on the supporting plate. A power output shaft of the second set of motor reducing mechanism is provided with a connecting plate, and a machine vision calibration plate is arranged on the connecting plate; the fixing mechanism is installed on the front portion of a sliding block of the first electric linear sliding table. According to the utility model, multi-mode lens parameter calibration can be realized, convenience is brought to technicians, and the calibration efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of calibration equipment, in particular to a novel electrically controlled endoscope system lens image calibration and demarcation device. Background Art

[0002] The general structure of the endoscope system, including the endoscope system used for internal organ detection, includes a lens and a display mechanism (for example, an endoscope system used for pipeline defect detection in the industrial field). When in use, the lens transmits the real-time image to the display mechanism through the video line. The software unit of the main control board inside the display mechanism processes the image and displays it on the display screen. In this way, doctors can intuitively understand the image data of the corresponding organ position in the patient's body, providing data support for diagnosing the patient's condition. The lens of the endoscope system is an important component. In order to obtain three-dimensional and real image data of organs in the human body, the lens of the existing endoscope system generally has two lenses, which are installed in the front end of the endoscope tube of the endoscope system at a distance from each other. Since the diameter of the endoscope lens is usually only 1-6mm, and there are many devices such as fill light to assist the lens, it is inevitable that there will be factors such as deviations in the production and assembly (such as the spacing between the two lenses, angle deviation, etc.). If it is used directly after assembly, there will be serious dimensional deviations when used for visual measurement. Therefore, each endoscope system with visual measurement function must be calibrated before leaving the factory to achieve the purpose of its deviation within the qualified range. Specifically, the calibration method is to fix the endoscope tube and the calibration object (machine vision calibration board) (align the front end of the lens with the calibration object), and then when the calibration object moves at multiple angles (the machine vision calibration board serves as the lens to collect reference signals), based on the image data input by the lens to the software unit of the main control board of the calibration device (the lens signal line of the endoscope tube and the video signal input end of the main control board of the calibration device are connected via a data cable), the technician adjusts the internal software unit parameters of the endoscope system so that under the current lens installation state, the image processed by the software processing unit is clearer and meets the actual detection needs.

[0003] From the existing patent-related search websites and known technologies, it can be known that there are generally two ways to coordinate the calibration of the lens parameters of the endoscope system. The first is that the technician moves the endoscope tube or the calibration object by hand and performs parameter calibration in coordination with the software unit of the main control board. Since the above is a fully manual operation, the stability and consistency are very poor, and it is impossible to ensure that the endoscope tube or the calibration object (machine vision calibration board) is at a set spacing or angle, so it is even more impossible to ensure accurate calibration parameters. Another use is to use a manual displacement stage, clamp the endoscope tube on the displacement stage, and then the technician manually rotates the calibration object on the displacement stage to achieve different spacing and angles between the movement and the lens, which plays a role in stabilizing the debugging parameters, but the above manual operation debugging steps are relatively complicated, which brings inconvenience to the technicians, and correspondingly is not conducive to improving the calibration efficiency. Taking all the above factors into consideration, the existing endoscope system lens parameter calibration cannot effectively meet the actual production needs. Utility Model Content

[0004] In order to overcome the disadvantages of inconvenience to technicians and inability to ensure accurate calibration parameters in the existing endoscope system lens parameter calibration due to technical limitations, the utility model provides a new type of electrically-controlled endoscope system lens image calibration device which can control the machine vision calibration plate to rotate 360 ​​degrees, move forward and backward, left and right, and up and down in front of the fixed endoscope system lens in a non-human operation mode, thereby realizing multi-mode lens parameter calibration, thereby bringing convenience to technicians and correspondingly improving the calibration efficiency and effect.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A novel electrically controlled endoscope system lens image calibration and calibration device comprises a PLC, a fixed seat, an electric linear slide, a motor reduction mechanism, and a machine vision calibration plate. There are multiple sets of electric linear slides, and there are at least two sets of motor reduction mechanisms and fixed seats respectively; it is characterized in that it also has a fixing mechanism; the two sets of fixed seats are respectively installed at both ends of the calibration workbench, the lower end of the shell of the first set of electric linear slide is installed on the rear end of one of the fixed seats, the lower ends of the shell of the second set of electric linear slide are respectively installed on the upper ends of the two sets of fixed seats, the lower end of the shell of the third set of electric linear slide is installed on the sliding block of the second set of electric linear slide, and the lower end of the shell of the first set of motor reduction mechanism is installed on the sliding block of the third set of electric linear slide; a support plate is installed on the power output shaft of the first set of motor reduction mechanism, and the shell of the second set of motor reduction mechanism is installed on the side end of the support plate; a connecting plate is installed on the power output shaft of the second set of motor reduction mechanism, and the machine vision calibration plate is installed on the side end of the connecting plate; the rear end of the fixing mechanism is installed in front of the sliding block of the first set of electric linear slide.

[0007] Furthermore, the fixing mechanism includes a fixing plate, a fixing clamp, and a nut. The fixing clamp has a fixing hole at the front, the fixing plate has a lower fixing groove, the fixing clamp has an upper fixing groove, the fixing plate has a bolt at the front, and the fixing clamp is installed on the fixing plate.

[0008] Furthermore, the upper fixing groove and the lower fixing groove are in a vertical plane, the inner diameter formed by the upper fixing groove and the lower fixing groove is smaller than the outer diameter of the lens tube of the endoscope system, and the lens tube of the endoscope system is installed between the upper part of the lower fixing groove of the fixing plate and the lower end of the upper fixing groove of the fixing clamp.

[0009] Furthermore, the first set of electric linear slides is in a vertical state, the second set of electric linear slides is in a transverse horizontal structure, the third set of electric linear slides is in a longitudinal horizontal structure, the first set of motor reduction mechanisms is in a horizontal structure, and the second set of motor reduction mechanisms is in a vertical structure.

[0010] Compared with the prior art, the present invention has the following beneficial effects: (1) Before calibration, the lens tube of the endoscope system is installed between the upper part of the lower fixing groove of the fixing plate and the lower end of the upper fixing groove of the fixing clamp, and the right front end of the lens is aligned with the machine vision calibration plate. This not only fixes the endoscope reliably, but also makes installation and disassembly very convenient. (2) During calibration, the sliding block of the first set of electric linear slides can drive the lens tube of the endoscope system to move up or down, and the second and third sets of electric linear slides can drive the calibration object to move left or right, forward or backward. The first set of motor reduction mechanisms can drive the machine vision calibration plate to rotate horizontally, and the second set of motor reduction mechanisms can drive the machine vision calibration plate to rotate vertically. In this way, the calibration of multi-mode lens parameters can be realized, which brings convenience to technical personnel and correspondingly improves the calibration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 It is a schematic diagram of the overall structure and the partially enlarged structure of the utility model. DETAILED DESCRIPTION

[0013] Figure 1As shown, a new type of electrically controlled endoscope system lens image calibration and calibration device includes a PLC1, a fixed seat 2, an electric linear slide (a finished electric lead screw slide), a motor reduction mechanism (a coaxial motor gear reducer), and a machine vision calibration plate 3. There are three sets of electric linear slides, two sets of motor reduction mechanisms and two sets of fixed seats respectively, and the power input ends of the three sets of electric linear slides and two sets of motor reduction mechanisms and the five-way power output ends of the PLC are respectively connected by wires; it also has a fixing mechanism, and the lower ends of the two sets of fixed seats 2 are longitudinally distributed on the left and right ends of the calibration workbench by bolts, the lower end of the shell of the first set of electric linear slides 41 is vertically distributed and fixedly installed on the rear end of the left fixed seat 2 by bolts, and the lower end of the shell of the second set of electric linear slides 42 is horizontally distributed and fixedly installed on the left and right fixed seats 2 by bolts on both sides. The middle upper end; the lower end of the shell of the third electric linear slide 43 is longitudinally distributed and fixedly installed on the sliding block of the second electric linear slide 42 by bolts, and the lower end of the shell of the first motor reduction mechanism 51 is horizontally fixedly installed on the sliding block of the third electric linear slide 43 by bolts. An "L"-shaped support plate 6 is horizontally welded on the upper part of the power output shaft of the first motor reduction mechanism 51, and the rear end of the shell of the second motor reduction mechanism 52 (the power output shaft is in the front) is horizontally distributed and fixedly installed on the upper part of the rear end of the support plate 6 by bolts; a "¬"-shaped connecting plate 7 is welded in front of the power output shaft of the second motor reduction mechanism 52, and the right end of the machine vision calibration plate 3 is fixedly installed on the left front end of the connecting plate 7 by bolts; the rear end of the fixing plate 81 of the fixing mechanism is horizontally welded and installed in front of the sliding block of the first electric linear slide 41.

[0014] Figure 1As shown, the fixing mechanism includes a fixing plate 81, a fixing clip 82, and a manual nut 87. The front of the fixing clip 82 has a through fixing hole 83, and the middle of the fixing plate has a concave lower fixing groove 84 horizontally distributed on the left and right sides. There are two fixing clips 82, and each fixing clip has a horizontally distributed upper fixing groove 86 in the middle of the lower end. A bolt 85 is vertically welded on the left and right sides of the front of the fixing plate 81. The fixing holes 83 of the two fixing clips 82 are respectively sleeved on the outer ends of the two bolts 85 from top to bottom. Two manual nuts 87 are respectively screwed into the outer threads of the two bolts to install the two fixing clips 82 on the left and right ends of the fixing plate 81. The upper fixing groove 86 and the lower fixing groove 84 are in a vertical plane. The inner diameter of the upper fixing groove 86 and the lower fixing groove 84 is slightly smaller than the outer diameter of the lens tube of the endoscope system (not shown in the figure, and its outer end has a glue layer so it has a certain plasticity). The lens tube of the endoscope system is installed between the upper part of the lower fixing groove 84 of the fixing plate and the lower ends of the upper fixing grooves 86 of the two fixing clips. The first electric linear slide 41 is in a vertical state, the second electric linear slide 42 is in a transverse horizontal structure, the third electric linear slide 43 is in a longitudinal horizontal structure, the first motor reduction mechanism 51 is in a horizontal structure, and the second motor reduction mechanism 52 is in a vertical structure.

[0015] Figure 1As shown, before calibration of the new type, the lens tube of the endoscope system is installed between the upper part of the lower fixing groove 84 of the fixing plate and the lower ends of the upper fixing grooves 86 of the two fixing clips, and the right front end of the lens is aligned with the machine vision calibration plate 3. Due to the reliable fixation, the lens tube will not be displaced during the detection, and the installation and disassembly are very convenient (the lens tube of the endoscope system can be taken out by loosening the nut 87 later). During calibration, after the multi-channel power output terminals of the PLC output power respectively, the sliding block of the first set of electric linear slides 41 can drive the lens tube of the endoscope system to move up or down, the second set of electric linear slides 42 and the third set of electric linear slides 43 will drive the machine vision calibration plate to move left or right, forward or backward, the first set of motor reduction mechanisms 51 will drive the machine vision calibration plate 3 to rotate horizontally (not exceeding 360 degrees), and the second set of motor reduction mechanisms 52 will drive the machine vision calibration plate 3 to rotate vertically (not exceeding 360 degrees). In this way, the calibration of multi-mode lens parameters can be realized (the lens signal line of the endoscope tube and the signal input end of the calibration device main control board are connected via a data line). During specific calibration, according to the calibration object image data input to the software unit of the calibration device main control board from the front right end of the lens, the technician adjusts the internal software unit parameters of the endoscope system so that under the current lens installation state, the image processed by the software processing unit is clearer to meet the actual detection needs. In this new type, there is no need for manual displacement of the lens tube or the machine vision calibration plate, and the lens of the lens tube and the calibration object (machine vision calibration plate) can be adjusted in multiple spacings, multiple angles, and multiple height modes, which provides technical support for the calibration equipment main control board and the internal software unit to calibrate the corresponding lens, brings convenience to technical personnel, and correspondingly improves the calibration efficiency. It should be noted that the existing mature technology for calibration (including PLC controlling the working mode of electrical equipment according to the program, etc. are all existing mature technologies), and this application does not provide any protection for this technical point, nor does it elaborate on the working principle. This application protects that, under the action of relevant mechanisms, the lens of the lens tube and the calibration object (machine vision calibration plate) can be adjusted in multiple spacings, multiple angles, and multiple height modes, which provides technical support for the calibration equipment main control board and the internal software unit to calibrate the corresponding lens.

[0016] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0018] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A new type of electronically controlled endoscope system lens image calibration device, comprising a PLC, a fixed seat, an electric linear slide, a motor reduction mechanism, and a machine vision calibration plate. There are multiple sets of electric linear slides, and there are at least two sets of motor reduction mechanisms and fixed seats respectively; the characteristics are as follows: It also has a fixing mechanism; the two sets of fixing seats are respectively installed at both ends of the calibration workbench, the lower end of the shell of the first set of electric linear slide is installed on the rear end of one of the fixing seats, the lower ends of the shell of the second set of electric linear slide are respectively installed on the upper ends of the two sets of fixing seats, the lower end of the shell of the third set of electric linear slide is installed on the sliding block of the second set of electric linear slide, and the lower end of the shell of the first set of motor reduction mechanism is installed on the sliding block of the third set of electric linear slide; a support plate is installed on the power output shaft of the first set of motor reduction mechanism, and the shell of the second set of motor reduction mechanism is installed on the side end of the support plate; a connecting plate is installed on the power output shaft of the second set of motor reduction mechanism, and the machine vision calibration plate is installed on the side end of the connecting plate; the rear end of the fixing mechanism is installed in front of the sliding block of the first set of electric linear slide.

2. According to the novel electrically controlled endoscope system lens image calibration device of claim 1, it is characterized in that: The fixing mechanism comprises a fixing plate, a fixing clamp and a nut. The front of the fixing clamp is provided with a fixing hole, the fixing plate is provided with a lower fixing groove, the fixing clamp is provided with an upper fixing groove, the front of the fixing plate is provided with a bolt, and the fixing clamp is installed on the fixing plate.

3. The novel electrically controlled endoscope system lens image calibration device according to claim 1 is characterized in that: The upper fixing groove and the lower fixing groove are in a vertical plane, the inner diameter of the upper fixing groove and the lower fixing groove is smaller than the outer diameter of the lens tube of the endoscope system, and the lens tube of the endoscope system is installed between the upper part of the lower fixing groove of the fixing plate and the lower end of the upper fixing groove of the fixing clamp.

4. The novel electrically controlled endoscope system lens image calibration device according to claim 1 is characterized in that: The first set of electric linear slides is in a vertical state, the second set of electric linear slides is in a transverse horizontal structure, the third set of electric linear slides is in a longitudinal horizontal structure, the first set of motor reduction mechanisms is in a horizontal structure, and the second set of motor reduction mechanisms is in a vertical structure.

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