Double-beam laser scanning device

Abstract

The invention discloses a double-beam laser scanning device, and belongs to the technical field of laser scanning equipment, the double-beam laser scanning device comprises a supporting seat and a supporting disc rotatably connected in the supporting seat, a fixed sleeve is fixed on the surface of the supporting disc, an adjusting sleeve is movably connected in the fixed sleeve, and a protection box is arranged at the top of the adjusting sleeve. Two partition plates are symmetrically fixed in the protection box, the opposite faces of the two partition plates are each rotationally connected with two connecting columns, two protection sleeves fixedly connected with the connecting columns are arranged between the two partition plates, laser emitters are installed in the protection sleeves, and a plurality of fans are installed in the protection box. Two moving grooves are symmetrically formed in the outer wall of one side of the protection box, and flow guide plates are movably connected into the moving grooves of the protection box. According to the double-beam laser scanning device, the scanning range can be adjusted according to scanning requirements, dust in the scanning range can be blown away in the scanning process, and the scanning precision is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of laser scanning equipment, and in particular relates to a double-beam laser scanning device. Background Art

[0002] Existing laser scanning systems are widely used. They are generally assembled with laser transmitters, high-speed galvanometer systems, etc. Its principle is to use a laser beam to scan the surface of an object and obtain the shape and color information of the object's surface through the reflected light signal.

[0003] In the prior art, when the environment where the scanned object is located is dusty, part of the reflected light signal will be blocked by dust particles in the air, resulting in incomplete reflected light signal, affecting the scanning accuracy, and requiring an increase in the number of scans, thereby affecting the scanning efficiency of the object. Summary of the invention

[0004] The purpose of the present invention is to provide a dual-beam laser scanning device to solve the problem raised in the above background technology that when the environment where the scanned object is located is dusty, part of the reflected light signal will be blocked by dust particles in the air, resulting in incomplete reflected light signal, affecting the scanning accuracy, and requiring an increase in the number of scans, thereby affecting the scanning efficiency of the object.

[0005] To achieve the above object, the present invention provides the following technical solution: a dual-beam laser scanning device, comprising a support seat and a support plate rotatably connected to the support seat, a fixed sleeve is fixed to the surface of the support plate, an electric telescopic rod is installed in the fixed sleeve, and an adjusting sleeve movably connected to the fixed sleeve is fixed to the output end of the electric telescopic rod, a threaded column is fixed to the top of the adjusting sleeve, and a protective box is threadedly connected to the outer wall of the threaded column;

[0006] Two partitions are symmetrically fixed in the protective box, and the opposite surfaces of the two partitions are rotatably connected to two connecting columns, and two protective sleeves fixedly connected to the connecting columns are arranged between the two partitions, a laser emitter is installed in the protective sleeve, and two lenses are arranged on one side of the laser emitter, a forward and reverse motor is installed on the inner wall of one side of the protective box, and a plurality of installation grooves are opened on the outer wall of one side of the protective box, and a fan is installed in the installation groove of the protective box, and two movable grooves are symmetrically opened on the outer wall of one side of the protective box, and a guide plate is movably connected in the movable groove of the protective box.

[0007] In a further embodiment, a stepper motor is installed on the bottom wall of the inner cavity of the support seat, a driving gear is fixed to the outer wall of the output shaft of the stepper motor, the bottom wall of the inner cavity of the support seat is rotatably connected to a rotating column fixedly connected to the support plate, and a driven gear meshing with the driving gear is fixed to the outer wall of the rotating column.

[0008] In a further embodiment, a guide screw is fixed to the output end of the forward and reverse motor, the outer wall of the guide screw is threadedly connected to a guide block, and push-pull rods are provided on the upper and lower sides of the guide block, and a support frame movably connected to the protective sleeve is provided on one side of the push-pull rod.

[0009] In a further embodiment, threaded holes are provided on both side outer walls of the support frame, and fixing bolts are threadedly connected to the fixing holes of the support frame, and both ends of the push-pull rod are rotatably connected to connecting seats fixedly connected to the support frame and the guide block.

[0010] In a further embodiment, two linear reciprocating motors are symmetrically mounted on the bottom wall of the inner cavity of the protection box, and a connecting rod fixedly connected to the guide plate is fixed on the surface of the working table of the linear reciprocating motor.

[0011] In a further embodiment, the outer walls around the support plate are provided with rotation grooves, and a limiting ball is rotatably connected in the rotation groove of the support plate, and the inner wall of the support seat is provided with a limiting sliding groove for the limiting ball to slide.

[0012] In a further embodiment, a through slot is formed on one side outer wall of the protection box, and a protection plate is installed in the through slot of the protection box.

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

[0014] The dual-beam laser scanning device moves the scanning device to the front of the scanned object, and multiple fans work at the same time to blow away the dust between the device and the scanned object, so as to prevent dust particles in the air from affecting the reflected light signal, thereby ensuring the scanning quality. At the same time, the linear reciprocating motor works, and when the fan works, the guide plate is pushed out of the protective box to limit the wind blown by the fan, so that the wind blown by the fan forms a specific route, thereby ensuring the cleaning effect of dust particles.

[0015] Through the setting of two laser emitters, synchronous scanning can be achieved, especially for the symmetrical parts of the same object, synchronous scanning can be achieved with high accuracy, no need to use multiple scanning devices for scanning, simple structure, easy to use, while the stepper motor works, can drive the laser emitter to rotate horizontally, the electric telescopic rod works, can drive the laser emitter to rise and fall vertically, so as to quickly adjust the scanning position and improve the scanning efficiency;

[0016] The guide screw is driven to rotate by the forward and reverse motors, thereby driving the guide block to move. In conjunction with the push-pull rod, the protective sleeve can be rotated along the position of the connecting column, changing the angle of the laser emitter and adjusting the scanning range to meet scanning requirements in different situations. The dual-beam laser scanning device can adjust the scanning range according to the scanning requirements. During the scanning process, the dust within the scanning range can be blown away to ensure scanning 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 schematic structural diagram of a stepping motor and a supporting plate of the present invention;

[0020] Figure 3 An exploded view of the fixing sleeve of the present invention;

[0021] Figure 4 is a cross-sectional view of the protective box of the present invention;

[0022] Figure 5 It is a schematic structural diagram of the protective sleeve and the support frame of the present invention;

[0023] Figure 6 For the present invention Figure 4 The enlarged view of point A in the middle;

[0024] Figure 7 It is a schematic structural diagram of the linear reciprocating motor and the guide plate of the present invention.

[0025] In the figure: 1. support seat; 2. stepper motor; 3. driving gear; 4. rotating column; 5. driven gear; 6. support plate; 7. limit ball; 8. fixed sleeve; 9. electric telescopic rod; 10. adjusting sleeve; 11. threaded column; 12. protective box; 13. partition; 14. connecting column; 15. protective sleeve; 16. laser transmitter; 17. lens; 18. support frame; 19. fixing bolt; 20. forward and reverse motor; 21. guide screw; 22. guide block; 23. push-pull rod; 24. fan; 25. linear reciprocating motor; 26. connecting rod; 27. guide plate; 28. protective plate. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] See also Figure 1-7 The present invention provides a dual-beam laser scanning device, comprising a support seat 1 and a support plate 6 rotatably connected to the support seat 1, a stepper 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 on the outer wall of the output shaft of the stepper motor 2, a rotating column 4 fixedly connected to the support plate 6 is rotatably connected to the bottom wall of the inner cavity of the support seat 1 by a welded bearing, and a driven gear 5 meshing with the driving gear 3 is welded on the outer wall of the rotating column 4, the driving gear 3 is driven to rotate by the stepper motor 2, thereby driving the driven gear 5 and the rotating column 4 to rotate, and then driving the support plate 6 to rotate, the support plate 6 can rotate within a range of ±60°, rotating grooves are provided on the outer walls around the support plate 6, and a limiting ball 7 is rotatably connected in the rotating groove of the support plate 6, and a limiting slide groove for sliding the limiting ball 7 is provided on the inner wall of the support seat 1, and the limiting ball 7 slides in the limiting slide groove of the support seat 1, which can limit the position of the support plate 6 and ensure that the support plate 6 rotates more smoothly in the support seat 1;

[0029] A fixed sleeve 8 is fixed to the surface of the support plate 6 by bolts, an electric telescopic rod 9 is installed in the fixed sleeve 8 by bolts, and an adjusting sleeve 10 movably connected to the fixed sleeve 8 is fixed to the output end of the electric telescopic rod 9, a cavity for accommodating the electric telescopic rod 9 is opened in the adjusting sleeve 10, a threaded column 11 is welded to the top of the adjusting sleeve 10, and a protective box 12 is threadedly connected to the outer wall of the threaded column 11;

[0030] Two partitions 13 are symmetrically fixed by bolts in the protective box 12. The opposite surfaces of the two partitions 13 are rotatably connected to two connecting columns 14 through welded bearings, and two protective sleeves 15 fixedly connected to the connecting columns 14 are arranged between the two partitions 13. A guide groove for the movement of the protective sleeve 15 is opened on the outer wall of one side of the protective box 12. A laser emitter 16 is installed in the protective sleeve 15. The laser emitter 16 is a prior art, and its structure will not be described in detail here. Two lenses 17 are arranged on one side of the laser emitter 16. The shape of the lens 17 can be set according to actual use requirements, so as to adjust the refraction angle of light;

[0031] A forward and reverse motor 20 is installed on the inner wall of one side of the protective box 12 by bolts, and a guide screw 21 is fixed to the output end of the forward and reverse motor 20 through a coupling, and a guide block 22 is threadedly connected to the outer wall of the guide screw 21, and push-pull rods 23 are provided on the upper and lower sides of the guide block 22. A support frame 18 movably connected to the protective sleeve 15 is provided on one side of the push-pull rod 23, and threaded holes are provided on the outer walls of both sides of the support frame 18, and fixing bolts 19 are threadedly connected in the fixing holes of the support frame 18. The fixing bolts 19 are rotated to make the fixing bolts 19 fit on the outside of the protective sleeve 15, so that the protective sleeve can be adjusted. The position of the barrel 15 is fixed, and both ends of the push-pull rod 23 are rotatably connected to a connecting seat fixedly connected to the support frame 18 and the guide block 22. Through the arrangement of two laser emitters 16, synchronous scanning can be achieved, especially for symmetrical parts of the same object, synchronous scanning can be achieved with high accuracy, and there is no need to use multiple scanning devices for scanning. The structure is simple and easy to use. At the same time, the stepper motor 2 works to drive the laser emitter 16 to rotate horizontally, and the electric telescopic rod 9 works to drive the laser emitter 16 to rise and fall vertically, so as to quickly adjust the scanning position and improve the scanning efficiency;

[0032] The guide screw 21 is driven to rotate by the forward and reverse motor 20, thereby driving the guide block 22 to move, and the push-pull rod 23 is cooperated to make the protective sleeve 15 rotate along the position of the connecting column 14, change the angle of the laser emitter 16, adjust the scanning range, and meet the scanning requirements in different situations;

[0033] A plurality of mounting grooves are provided on one side outer wall of the protection box 12, and a fan 24 is installed in the mounting groove of the protection box 12 by bolts, and the wind speed of the fan 24 can be set according to actual use requirements, two movable grooves are symmetrically provided on one side outer wall of the protection box 12, and a guide plate 27 is movably connected in the movable groove of the protection box 12, and two linear reciprocating motors 25 are symmetrically installed in the bottom wall of the inner cavity of the protection box 12 by bolts, and a connecting rod 26 fixedly connected to the guide plate 27 is fixed on the surface of the working table of the linear reciprocating motor 25 by bolts, and a through groove is provided on one side outer wall of the protection box 12, and a through groove of the protection box 12 is provided in the through groove of the protection box 12. A protective plate 28 is installed by bolts. The detachable protective plate 28 is convenient for disassembly and maintenance of the components in the protective box 12. The scanning device is moved in front of the scanned object. Multiple fans 24 work at the same time to blow away the dust between the device and the scanned object to prevent dust particles in the air from affecting the reflected light signal and ensure the scanning quality. At the same time, the linear reciprocating motor 25 works. When the fan 24 is working, the guide plate 27 is pushed out of the protective box 12 to limit the wind blown by the fan 24, so that the wind blown by the fan 24 forms a specific route to ensure the cleaning effect of dust particles.

[0034] 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.

[0035] 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.

[0036] Working principle:

[0037] When the dual-beam laser scanning device is used, the scanning device is moved in front of the scanned object, the laser emitter 16 is started, and the lens 17 is used to scan the object. During the scanning process, multiple fans 24 are started at the same time, and then the linear reciprocating motor 25 is started. The multiple fans 24 work at the same time to blow away the dust between the device and the scanned object, so as to prevent dust particles in the air from affecting the reflected light signal, thereby ensuring the scanning quality. At the same time, the linear reciprocating motor 25 works to push the guide plate 27 out of the protective box 12, and limit the wind blown by the fan 24, so that the wind blown by the fan 24 forms a specific route, thereby ensuring the cleaning effect of dust particles.

[0038] When it is necessary to adjust the scanning position and scanning range, start the stepper motor 2 to drive the active gear 3 to rotate, and the active gear 3 drives the rotating column 4 and the supporting plate 6 to rotate through the driven gear 5, thereby driving the laser emitter 16 to rotate horizontally, and the electric telescopic rod 9 works to drive the adjustment sleeve 10 to move up and down, thereby driving the laser emitter 16 to move vertically, and quickly adjust the scanning position, and then start the forward and reverse motor 20 to drive the guide screw 21 to rotate, thereby driving the guide block 22 to move, and cooperate with the push-pull rod 23 to make the protective sleeve 15 rotate along the position of the connecting column 14, change the angle of the laser emitter 16, and adjust the scanning range to meet the scanning needs in different situations.

[0039] 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 dual-beam laser scanning device, comprising a support base (1) and a support plate (6) rotatably connected to the support base (1), characterized in that: A fixed sleeve (8) is fixed on the surface of the support plate (6), an electric telescopic rod (9) is installed in the fixed sleeve (8), and an adjusting sleeve (10) movably connected to the fixed sleeve (8) is fixed at the output end of the electric telescopic rod (9), a threaded column (11) is fixed on the top of the adjusting sleeve (10), and a protective box (12) is threadedly connected to the outer wall of the threaded column (11); Two partitions (13) are symmetrically fixed in the protective box (12), and the opposite surfaces of the two partitions (13) are rotatably connected to two connecting columns (14), and two protective sleeves (15) fixedly connected to the connecting columns (14) are arranged between the two partitions (13), a laser emitter (16) is installed in the protective sleeve (15), and two lenses (17) are arranged on one side of the laser emitter (16), a forward and reverse motor (20) is installed on the inner wall of one side of the protective box (12), and a plurality of installation grooves are opened on the outer wall of one side of the protective box (12), and a fan (24) is installed in the installation groove of the protective box (12), and two movable grooves are symmetrically opened on the outer wall of one side of the protective box (12), and a guide plate (27) is movably connected in the movable groove of the protective box (12).

2. A dual-beam laser scanning device according to claim 1, characterized in that: A stepper motor (2) is mounted on the bottom wall of the inner cavity of the support seat (1); a driving gear (3) is fixed to the outer wall of the output shaft of the stepper motor (2); a rotating column (4) fixedly connected to the support plate (6) is rotatably connected to the bottom wall of the inner cavity of the support seat (1); and a driven gear (5) meshing with the driving gear (3) is fixed to the outer wall of the rotating column (4).

3. A dual-beam laser scanning device according to claim 1, characterized in that: A guide screw (21) is fixed to the output end of the forward and reverse motor (20), the outer wall of the guide screw (21) is threadedly connected to a guide block (22), and push-pull rods (23) are provided on both upper and lower sides of the guide block (22), and a support frame (18) movably connected to the protective sleeve (15) is provided on one side of the push-pull rod (23).

4. A dual-beam laser scanning device according to claim 3, characterized in that: The outer walls of both sides of the support frame (18) are provided with threaded holes, and the fixing holes of the support frame (18) are threadedly connected with fixing bolts (19), and both ends of the push-pull rod (23) are rotatably connected to connecting seats fixedly connected to the support frame (18) and the guide block (22).

5. A dual-beam laser scanning device according to claim 1, characterized in that: Two linear reciprocating motors (25) are symmetrically mounted on the bottom wall of the inner cavity of the protection box (12), and a connecting rod (26) fixedly connected to a guide plate (27) is fixed on the surface of a working table of the linear reciprocating motor (25).

6. A dual-beam laser scanning device according to claim 2, characterized in that: The outer walls of the support plate (6) are all provided with rotation grooves, and a limit ball (7) is rotatably connected in the rotation groove of the support plate (6), and the inner wall of the support seat (1) is provided with a limit sliding groove for the limit ball (7) to slide.

7. A dual-beam laser scanning device according to claim 5, characterized in that: A through slot is provided on one side outer wall of the protection box (12), and a protection plate (28) is installed in the through slot of the protection box (12).

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