Multi-mode optical online measuring device

Abstract

The invention discloses a multi-mode optical on-line measuring device, and belongs to the technical field of optical measurement, the multi-mode optical on-line measuring device comprises a supporting seat and a fixed box fixed on the surface of the supporting seat, a rotating pipe is rotatably connected in the supporting seat, an object placing table is fixed on the outer wall of the rotating pipe, a connecting column is movably connected in the fixed box, and the connecting column is fixedly connected with the object placing table. A mounting frame movably connected with the fixing box is fixed to the outer wall of the connecting column, two fixing columns are symmetrically fixed to the outer wall of one side of the mounting frame, a protective shell is fixed to the end faces of the fixing columns, an industrial camera is installed on the outer wall of one side of the protective shell, and a dustproof sleeve is movably connected into the protective shell; and a measuring lens, a telecentric lens and a zoom lens are respectively arranged in the dustproof sleeve. According to the multi-mode optical online measurement device, on the premise that the workpiece is not moved, the workpiece can be comprehensively measured, the measurement efficiency is improved, meanwhile, different measurement modes can be selected according to measurement requirements, and the measurement precision is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of optical measurement, and in particular relates to a multi-mode optical online measurement device. Background Art

[0002] Three-dimensional dimension measurement technology is a key technology for the development of modern manufacturing industry. With the continuous improvement of industrial manufacturing level, there are more and more products with complex surfaces, and the development of three-dimensional dimension measurement technology is becoming more and more important.

[0003] Traditionally, the appearance defect detection of workpieces such as electronic components, die slices, battery structural parts, etc. still mainly relies on manual visual inspection. As workpieces develop towards miniaturization and complexity, tiny appearance defects cannot be accurately detected by the naked eye, the measurement accuracy is low, and the measurement results are easily affected by the subjective factors of the inspectors and are not transferable. Therefore, there are currently some machine vision-based solutions for workpiece size measurement and appearance defect detection, but they can only be used for workpieces of a certain type or several types of appearance forms, without considering the differences in material or appearance style, and cannot meet the above-mentioned workpiece size measurement and appearance defect detection needs. Summary of the invention

[0004] The purpose of the present invention is to provide a multi-mode optical online measuring device to solve the problem that there are currently some machine vision-based solutions proposed in the above background technology, which are used for workpiece size measurement and appearance defect detection, but they can only be used for workpieces of a certain type or several types of appearance forms, without considering the differences in material materials or appearance styles, and cannot meet the above-mentioned problems of workpiece size measurement and appearance defect detection requirements.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-mode optical online measurement device, comprising a support seat and a fixed box fixed to the surface of the support seat, a rotating motor is installed on the bottom wall of the inner cavity of the support seat, a rotating hole is opened on the top of the support seat, and a rotating tube is rotatably connected in the rotating hole of the top of the support seat, a storage table is fixed on the outer wall of the rotating tube, a vacuum pump is installed on the bottom wall of the inner cavity of the support seat, and a suction end of the vacuum pump is installed with a suction tube rotatably connected to the rotating tube;

[0006] The outer walls on both sides of the fixed box are provided with movable grooves, and connecting columns are movably connected in the movable grooves of the fixed box, the outer walls of the connecting columns are fixed with a mounting bracket movably connected to the fixed box, one side outer wall of the mounting bracket is symmetrically fixed with two fixed columns, the end surface of the fixed column is fixed with a protective shell, an industrial camera is installed on one side outer wall of the protective shell, and a dust cover is movably connected in the protective shell, and a measuring lens, a telecentric lens and a zoom lens are respectively installed in the dust cover.

[0007] In a further embodiment, a driving gear is fixed to the outer wall of the output shaft of the rotating motor, a driven gear meshing with the driving gear is fixed to the outer wall of the rotating tube, and a plurality of air suction holes are opened on the surface of the storage table.

[0008] In a further embodiment, two forward and reverse motors are installed on an outer wall of one side of the fixed box, and a winding reel is fixed on the outer wall of the output shaft of the forward and reverse motor.

[0009] In a further embodiment, a draw cord is wound around the outside of the cable reel, and a draw ring fixedly connected to the connecting column is fixed at one end of the draw cord.

[0010] In a further embodiment, a linear reciprocating motor is mounted on the surface of the protective shell, and a connecting block fixedly connected to a working table of the linear reciprocating motor is fixed on the top of the dust cover.

[0011] In a further embodiment, a limiting column is fixed on an inner wall of one side of the mounting frame, a rotation groove is provided on one end of the limiting column facing the fixed box, and a limiting ball is rotatably connected in the rotation groove of the limiting column, and a limiting sliding groove is provided on an outer wall of one side of the fixed box for the limiting ball to slide.

[0012] In a further embodiment, a through groove is formed on an outer wall of one side of the support seat, and a protective plate is installed in the through groove of the support seat.

[0013] Technical effects and advantages of the present invention:

[0014] The multi-mode optical online measuring device can select one or more of the measuring lens, telecentric lens and zoom lens to measure the workpiece by cooperating with the industrial camera through the measuring lens, telecentric lens and zoom lens that are set at the same time, effectively increasing the measuring range, greatly improving the versatility, and meeting the inspection requirements of the appearance of different workpieces. At the same time, when the linear reciprocating motor drives the dust cover to move for switching different lenses, the protective cover can shield the connection ends of different lenses and the industrial camera to prevent dust from entering the lens, thereby ensuring the accuracy of data collected by different lenses;

[0015] The rotating motor drives the active gear to rotate, and the active gear drives the driven gear, the rotating tube and the storage table to rotate, which can automatically drive the workpiece to rotate, so that the industrial camera can collect data and images around the workpiece. The forward and reverse motors drive the winding reel to rotate, which can drive the mounting frame and the protective shell to move, so that the industrial camera can be moved to the top of the workpiece. Without moving the workpiece, the different positions of the workpiece can be comprehensively measured, which improves the measurement efficiency and avoids the need for re-positioning due to the movement of the workpiece, reducing the difficulty of measurement.

[0016] Through the setting of the vacuum pump, after the workpiece is placed on the surface of the storage table, the vacuum pump cooperates with the suction pipe to evacuate the storage table, so that the workpiece is firmly adsorbed on the surface of the storage table, avoiding displacement of the workpiece when the storage table rotates, thereby affecting the measurement accuracy. The multi-mode optical online measurement device can comprehensively measure the workpiece without moving the workpiece, thereby improving the measurement efficiency. At the same time, different measurement modes can be selected according to measurement requirements to improve the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the rotating motor and the storage platform of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the forward and reverse motor and the cable reel of the present invention;

[0021] Figure 4 It is a structural schematic diagram of the mounting frame of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the protective shell and the linear reciprocating motor of the present invention;

[0023] Figure 6 It is a schematic structural diagram of the dust cover of the present invention.

[0024] In the figure: 1. Support seat; 2. Rotating motor; 3. Driving gear; 4. Rotating tube; 5. Driven gear; 6. Storage table; 7. Vacuum pump; 8. Suction pipe; 9. Protective plate; 10. Fixed box; 11. Forward and reverse motor; 12. Winding reel; 13. Connecting column; 14. Pull ring; 15. Mounting frame; 16. Limit column; 17. Limit ball; 18. Fixed column; 19. Protective shell; 20. Industrial camera; 21. Dust cover; 22. Linear reciprocating motor; 23. Connecting block; 24. Measuring lens; 25. Telecentric lens; 26. Zoom lens. DETAILED DESCRIPTION

[0025] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0026] Unless otherwise defined, the up, down, left, right, front, back, inside and outside directions involved in this document are based on the up, down, left, right, front, back, inside and outside directions in the figures shown in the present invention, and are explained here together.

[0027] See also Figure 1-6 The present invention provides a multi-mode optical online measurement device, comprising a support seat 1 and a fixing box 10 fixed to the surface of the support seat 1, a rotating motor 2 is installed on the bottom wall of the inner cavity of the support seat 1 by bolts, a driving gear 3 is welded to the outer wall of the output shaft of the rotating motor 2, a rotating hole is opened on the top of the support seat 1, and a rotating tube 4 is rotatably connected to the rotating hole on the top of the support seat 1 through a welded bearing, a driven gear 5 meshing with the driving gear 3 is welded to the outer wall of the rotating tube 4, a storage platform 6 is welded to the outer wall of the rotating tube 4, the storage platform 6 is rotatably connected to the support seat 1, a cavity is opened in the storage platform 6, and a plurality of suction holes are opened on the surface of the storage platform 6;

[0028] A vacuum pump 7 is installed on the bottom wall of the inner cavity of the support seat 1 through bolts, and a suction pipe 8 rotatably connected to the rotating tube 4 is installed at the suction end of the vacuum pump 7. The suction pipe 8 is rotatably connected to the rotating tube 4 through a welded bearing. When the rotating tube 4 rotates, the suction pipe 8 is prevented from restricting the rotation of the rotating tube 4. A sealing ring is provided at the contact position between the rotating tube 4 and the suction pipe 8 to ensure the suction effect of the vacuum pump 7. After the workpiece is placed on the surface of the storage table 6, the vacuum pump 7 works, and cooperates with the suction pipe 8 to perform a vacuum operation on the storage table 6, so that the workpiece is firmly adsorbed on the surface of the storage table 6, to avoid displacement of the workpiece when the storage table 6 rotates, thereby affecting the measurement accuracy. A through groove is opened on the outer wall of one side of the support seat 1, and a protective plate 9 is installed in the through groove of the support seat 1 through bolts. The detachable protective plate 9 is convenient for disassembly and maintenance of the components in the support seat 1;

[0029] The fixed box 10 is welded to the surface of the support seat 1. The fixed box 10 consists of a vertical rod and a horizontal rod. The contact position of the vertical rod and the horizontal rod of the fixed box 10 is an arc structure. The outer walls of both sides of the fixed box 10 are provided with movable grooves, and the movable grooves of the fixed box 10 are movably connected with connecting columns 13. The outer walls of the connecting columns 13 are welded with mounting frames 15 movably connected with the fixed box 10. Two forward and reverse motors 11 are installed on the outer wall of one side of the fixed box 10 by bolts. The two forward and reverse motors 11 are respectively installed on the vertical rod and the horizontal rod of the mounting box. A winding drum 12 is welded on the outer wall of the output shaft of the forward and reverse motor 11. The winding drum 12 is rotatably connected to the fixed box 10. A pull rope is wound around the outside of the winding drum 12. One end of the pull rope is fixed with a pull ring 14 welded and fixed to the connecting column 13. The rotation direction of the two forward and reverse motors 11 can be set according to actual use requirements. When the two forward and reverse motors 11 work at the same time, the two winding drums 12 are respectively used for releasing and rewinding;

[0030] A limiting column 16 is welded to the inner wall of one side of the mounting frame 15, and a rotation groove is provided at one end of the limiting column 16 facing the fixed box 10, and a limiting ball 17 is rotatably connected in the rotation groove of the limiting column 16, and a limiting slide groove for sliding the limiting ball 17 is provided on the outer wall of one side of the fixed box 10. The limiting column 16 can play a supporting role for the mounting frame 15 to ensure the stability of the mounting frame 15 moving outside the fixed box 10. The limiting ball 17 slides in the limiting slide groove of the fixed box 10, which can make the limiting column 16 move more smoothly outside the fixed box 10;

[0031] One side outer wall of the mounting frame 15 is symmetrically fixed with two fixing columns 18 by bolts, and the end face of the fixing column 18 is fixed with a protective shell 19 by bolts, and one side outer wall of the protective shell 19 is installed with an industrial camera 20 by bolts, and the outer wall of the protective shell 19 is provided with a through hole for the industrial camera 20 to shoot, and the industrial camera 20 is connected with an external data acquisition device through a data transmission line, and after the industrial camera 20 measures, the online transmission of data is directly realized, and a dust cover 21 is movably connected in the protective shell 19, and the end face of the dust cover 21 located inside the protective shell 19 is in contact with the inner wall of the protective shell 19, and measuring lenses are respectively installed in the dust cover 21 24, telecentric lens 25 and zoom lens 26, through the rotating motor 2 to drive the driving gear 3 to rotate, the driving gear 3 drives the driven gear 5, the rotating tube 4 and the storage table 6 to rotate, which can automatically drive the workpiece to rotate, so that the industrial camera 20 can collect data and images around the workpiece, and through the forward and reverse motor 11 to drive the winding reel 12 to rotate, it can drive the mounting frame 15 and the protective shell 19 to move, so that the industrial camera 20 moves to the top of the workpiece, without moving the workpiece, the different positions of the workpiece are comprehensively measured, the measurement efficiency is improved, and at the same time, it is avoided that the workpiece moves and needs to be re-positioned, which reduces the difficulty of measurement;

[0032] A linear reciprocating motor 22 is installed on the surface of the protective shell 19 by bolts, and a connecting block 23 fixedly connected to the workbench of the linear reciprocating motor 22 is fixed on the top of the dust cover 21. A moving groove for the connecting block 23 to move is opened on the surface of the protective shell 19. By setting a measuring lens 24, a telecentric lens 25 and a zoom lens 26 at the same time, in conjunction with the industrial camera 20, one or more of the measuring lens 24, the telecentric lens 25 and the zoom lens 26 can be selected to measure the workpiece, effectively increasing the measuring range, greatly improving the versatility, and meeting the inspection requirements of the appearance of different workpieces. At the same time, when the linear reciprocating motor 22 drives the dust cover to move for switching different lenses, the protective cover can block the connection ends of different lenses and the industrial camera 20 to prevent dust from entering the lens, thereby ensuring the accuracy of data collected by different lenses.

[0033] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The control method of the present invention is controlled by a controller, and the control circuit of the controller can be realized by simple programming by technicians in this field. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0034] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] Working principle:

[0036] When the multi-mode optical online measuring device is used, the workpiece to be measured is placed on the surface of the storage table 6, the vacuum pump 7 is started, and the suction pipe 8 is used to evacuate the storage table 6 so that the workpiece is firmly adsorbed on the surface of the storage table 6. The workpiece is measured through the industrial camera 20 in cooperation with one or more of the measuring lens 24, the telecentric lens 25 and the zoom lens 26. When it is necessary to switch the lens, the linear reciprocating motor 22 is started to drive the connecting block 23 and the dust cover 21 to move and switch the lens. After the lens switching is completed, the protective cover covers the connection ends of different lenses and the industrial camera 20 to prevent dust from entering the lens.

[0037] During the measurement of the workpiece, the rotating motor 2 and the forward and reverse motor 11 are started, the rotating motor 2 drives the active gear 3 to rotate, the active gear 3 drives the driven gear 5, the rotating tube 4 and the storage table 6 to rotate, and automatically drives the workpiece to rotate, so that the industrial camera 20 can collect data and images around the workpiece, and the forward and reverse motor 11 drives the winding reel 12 to rotate, drives the mounting frame 15 and the protective shell 19 to move, so that the industrial camera 20 moves from bottom to top until it moves to the top of the workpiece. Without moving the workpiece, comprehensive measurements are performed on different positions of the workpiece to improve measurement efficiency. At the same time, it also avoids the need for re-positioning due to the movement of the workpiece, reducing the difficulty of measurement. The measured data is transmitted to the data acquisition device through the data transmission line to realize online data transmission.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-mode optical online measurement device, comprising a support base (1) and a fixing box (10) fixed to the surface of the support base (1), characterized in that: A rotating motor (2) is installed on the bottom wall of the inner cavity of the support seat (1); a rotating hole is opened on the top of the support seat (1); a rotating tube (4) is rotatably connected to the rotating hole at the top of the support seat (1); a storage table (6) is fixed to the outer wall of the rotating tube (4); a vacuum pump (7) is installed on the bottom wall of the inner cavity of the support seat (1); and a suction pipe (8) rotatably connected to the rotating tube (4) is installed at the suction end of the vacuum pump (7); The outer walls of both sides of the fixed box (10) are provided with movable grooves, and a connecting column (13) is movably connected in the movable groove of the fixed box (10), and a mounting frame (15) movably connected to the fixed box (10) is fixed on the outer wall of the connecting column (13), and two fixed columns (18) are symmetrically fixed on the outer wall of one side of the mounting frame (15), and a protective shell (19) is fixed on the end surface of the fixed column (18), and an industrial camera (20) is installed on the outer wall of one side of the protective shell (19), and a dust cover (21) is movably connected in the protective shell (19), and a measuring lens (24), a telecentric lens (25) and a zoom lens (26) are respectively installed in the dust cover (21).

2. A multi-mode optical online measurement device according to claim 1, characterized in that: A driving gear (3) is fixed to the outer wall of the output shaft of the rotating motor (2), a driven gear (5) meshing with the driving gear (3) is fixed to the outer wall of the rotating tube (4), and a plurality of air intake holes are provided on the surface of the storage platform (6).

3. The multi-mode optical online measurement device according to claim 1, characterized in that: Two forward and reverse motors (11) are installed on one side outer wall of the fixed box (10), and a winding drum (12) is fixed on the outer wall of the output shaft of the forward and reverse motor (11).

4. A multi-mode optical online measurement device according to claim 3, characterized in that: A draw cord is wound around the outside of the cable reel (12), and a draw ring (14) fixedly connected to the connecting column (13) is fixed at one end of the draw cord.

5. The multi-mode optical online measurement device according to claim 1, characterized in that: A linear reciprocating motor (22) is installed on the surface of the protective shell (19), and a connecting block (23) fixedly connected to a workbench of the linear reciprocating motor (22) is fixed on the top of the dust cover (21).

6. The multi-mode optical online measurement device according to claim 1, characterized in that: A limiting column (16) is fixed on an inner wall of one side of the mounting frame (15); a rotation groove is provided at one end of the limiting column (16) facing the fixed box (10); a limiting ball (17) is rotatably connected in the rotation groove of the limiting column (16); and a limiting sliding groove for the limiting ball (17) to slide is provided on an outer wall of one side of the fixed box (10).

7. The multi-mode optical online measurement device according to claim 1, characterized in that: A through groove is provided on one side outer wall of the support seat (1), and a protective plate (9) is installed in the through groove of the support seat (1).

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