High-precision bidding document drawing identification scanning device capable of automatically calibrating angle

Abstract

The utility model discloses a high-precision bidding document drawing identification scanning device capable of automatically calibrating an angle, and relates to the technical field of drawing scanning devices. The utility model discloses a three-dimensional multi-axis manipulator, a scanning head, a charge coupled device (CCD) visual module, an external computer data line, a fixed seat and a movable seat, the three-dimensional multi-axis manipulator is mounted on one side of the upper end of the workbench, and the scanning head is fixed at the end of the three-dimensional multi-axis manipulator. The bidding document drawing fixed in the movable seat and the fixed seat can be stretched and flattened through moving driving, and the situation that due to the fact that the curled edges of the bidding document drawing are uneven, the scanning result goes wrong is avoided. And the movable seat can be adjusted according to the length of the bidding document, so that the decoration adaptability is improved, and bidding document drawings with various lengths can be scanned on the premise of not exceeding the moving length of the movable block.

Description

Technical Field

[0001] The utility model belongs to the field of drawing scanning devices, and specifically relates to a high-precision bid drawing recognition and scanning device with automatic angle calibration. Background Technique

[0002] A drawing scanner is a portable, low-carbon, and environmentally friendly office device. It is used to scan CAD drawings, with a maximum scanning size of A3. It uses a super-convenient structural design, is powered by USB, adopts the CMOS imaging principle, and can instantaneously input our paper documents in 1 second. Through OCR recognition, it can quickly convert images into word and Excel files, quickly save, modify, and manage various files. In order to improve the working efficiency of the drawing scanning device, a three-dimensional manipulator vision system has now been combined to help the scanning head quickly automatically adjust and calibrate the best shooting and scanning position according to the paper size.

[0003] Since the engineering bid drawings are relatively delicate, it is necessary to ensure the accuracy of the scanned drawings during scanning. However, the warping or unevenness of the drawings during the scanning process will affect the scanning results. In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0004] The technical problem to be solved by the present utility model is to overcome the deficiencies of the prior art and provide a high-precision bid drawing recognition and scanning device with automatic angle calibration.

[0005] To solve the above technical problems, the basic concept of the technical solution adopted by the present utility model is:

[0006] A high-precision bid drawing recognition and scanning device with automatic angle calibration includes a workbench, a three-dimensional multi-axis manipulator, a scanning head, a CCD vision module, an external computer data cable, a fixed seat, and a moving seat. It is characterized in that a three-dimensional multi-axis manipulator is installed on one side of the upper end of the workbench, a scanning head is fixed at the end of the three-dimensional multi-axis manipulator, and CCD vision modules connected to the control system of the three-dimensional multi-axis manipulator are fixed on both sides of the housing of the scanning head. An external computer data cable connected to the computer data is provided on one side of the control box of the three-dimensional multi-axis manipulator;

[0007] A reserved groove for the horizontal movement of the driving block is provided on the upper surface of the workbench. An activity seat for fixing one side of the bid drawing is provided at the upper end of the driving block, and a fixed seat is provided on the opposite side of the activity seat. The fixed seat is fixedly installed on the upper end of the workbench by screws.

[0008] Optionally, a miniature pen-type electric push rod is fixed to the upper end of the movable seat and the fixed seat, and the telescopic ends of the two miniature pen-type electric push rods respectively penetrate the middle of the movable seat and the fixed seat and are fixed to the pressure plate, and the lower end of each pressure plate is fixed with an anti-slip strip in contact with the surface of the bid drawing, and the lower end surface of each anti-slip strip is provided with an anti-slip protrusion, and the middle of the fixed seat and the movable seat are provided with a guide rail for the longitudinal movement of the pressure plate.

[0009] Optionally, a laser positioning light is fixed to the rear ends of the fixed seat and the movable seat, and the lamp head of the laser positioning light penetrates into the middle of the fixed seat and the movable seat, the outer cover of the lamp head of the laser positioning light is provided with a perspective protection plate, and the perspective protection plate is fixed to the inner wall of the fixed seat or the movable seat by screws, and the upper ends of the fixed seat and the movable seat are provided with embedded grooves for installing the perspective observation plate.

[0010] Optionally, the middle part of the lower end of the movable seat is rotatably connected to the top end of the driving block through a hinge shaft, a return spring is provided between the movable seat and the driving seat, and touch pressure sensors are fixed to the outer sides of the two return springs, and the touch pressure ends of the touch pressure sensors are located below the bottom of the movable seat, a damper is fixed to the upper end of the driving block, and the telescopic ends of the two dampers are rotatably connected to a connecting frame through a rotating shaft, and the connecting frame is fixed to the bottom of the movable seat by screws.

[0011] Optionally, the workbench is provided with cavities for installing a screw and a self-locking motor respectively, the output shaft of the self-locking motor is fixed to the screw through a coupling, the other end of the screw is rotatably connected to the inner wall of the cavity through a bearing, a driver is provided at the front end of the self-locking motor, a threaded sleeve is installed on the outside of the screw, the upper end of the threaded sleeve is fixed to the driving block through a screw, and a clearance hole for a guide rod to pass through is provided in the middle of the driving block, and the guide rod is fixedly installed inside the cavity and above the screw.

[0012] Optionally, a universal adjustment rod is fixed to the upper end of the workbench by screws, a fill light holder is fixed to the top of the universal adjustment rod, and a light strip for supplementing ambient light is provided inside the fill light holder.

[0013] Optionally, positioning blocks are fixed to the lower sides of the front and rear surfaces of the workbench, an adjustment bolt is threadedly connected to the middle of each positioning block, the bottom end of each adjustment bolt is rotatably connected to the support foot through a bearing, and a reference bubble is also fixed to the front end surface of the workbench.

[0014] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0015] Through the movement of the drive, the tender drawings fixed inside the moving seat and the fixed seat will be flattened, avoiding problems with the scanning results caused by curled and uneven tender drawings. Moreover, since the moving seat can be adjusted according to the length of the tender, the decorative adaptability is improved, enabling the scanning of tender drawings of various lengths without exceeding the moving length of the moving block.

[0016] The following further describes in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. Description of the Drawings

[0017] The following drawings are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0018] Figure 1 is the front view sectional structure schematic diagram of the present utility model;

[0019] Figure 2 is the combined part structure diagram of the fixed seat, the micro pen-type electric push rod, the pressing plate and the laser positioning lamp in the present utility model;

[0020] Figure 3 is the schematic diagram of another perspective of the combined part structure of the anti-slip strip and the anti-slip protrusion in the present utility model;

[0021] Figure 4 is the combined part structure diagram of the damper, the rotating shaft and the connecting frame in the present utility model;

[0022] Figure 5 is Figure 1 the schematic diagram of the part structure of part A in

[0023] In the drawings, the list of components represented by each reference numeral is as follows:

[0024] 1, workbench; 2, three-dimensional multi-axis manipulator; 3, scanning head; 4, CCD vision module; 5, external computer data cable; 6, drive block; 7, movable seat; 8, fixed seat; 9, micro pen-type electric push rod; 10, pressing plate; 11, anti-slip strip; 12, anti-slip protrusion; 13, guide rail; 14, laser positioning lamp; 15, perspective protection plate; 16, perspective observation plate; 17, hinge shaft; 18, return spring; 19, touch pressure sensor; 20, damper; 21, rotating shaft; 22, connecting frame; 23, lead screw; 24, self-locking motor; 25, driver; 26, threaded sleeve; 27, guide rod; 28, universal adjusting rod; 29, supplementary lamp holder; 30, lamp strip; 31, positioning block; 32, adjusting bolt; 33, support leg; 34, reference bubble.

[0025] It should be noted that these drawings and textual descriptions are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0026] Now, the present utility model will be further described in detail with reference to the drawings.

[0027] Please refer to Figures 1 to 5 , the present utility model provides a technical solution: a high-precision bid document drawing recognition and scanning device with automatic angle calibration, including a workbench 1, a three-dimensional multi-axis manipulator 2, a scanning head 3, a CCD vision module 4, an external computer data cable 5, a fixed seat 8 and a moving seat. One side of the upper end of the workbench 1 is installed with a three-dimensional multi-axis manipulator 2, and a scanning head 3 is fixed at the end of the three-dimensional multi-axis manipulator 2. CCD vision modules 4 connected to the control system of the three-dimensional multi-axis manipulator 2 are fixed on both sides of the housing of the scanning head 3. One side of the control box of the three-dimensional multi-axis manipulator 2 is provided with an external computer data cable 5 connected to the computer data;

[0028] A horizontal movement reserved groove for the driving block 6 is opened on the upper surface of the workbench 1. An activity seat 7 for fixing one side of the bid document drawing is provided at the upper end of the driving block 6. A fixed seat 8 is provided on the opposite side of the activity seat 7. The fixed seat 8 is fixedly installed at the upper end of the workbench 1 by screws. Considering that the engineering bid document drawings are relatively delicate and the accuracy of the scanned drawings needs to be ensured during scanning, and the situation of warping or unevenness of the drawings during the drawing scanning process will affect the scanning results. The present utility model makes the bid document drawings fixed inside the moving seat and the fixed seat 8 be flattened through the movement of the driving, avoiding the problem of the scanning results being affected due to the curled and uneven bid document drawings. And since the moving seat can be adjusted according to the length of the bid document, the decoration adaptability is improved, so that bid document drawings of various lengths can be scanned without exceeding the moving length of the moving block.

[0029] Among them, micro pen-type electric push rods 9 are fixed to the upper ends of the movable seat 7 and the fixed seat 8. The telescopic ends of the two micro pen-type electric push rods 9 respectively penetrate through the middle parts of the movable seat 7 and the fixed seat 8 and are fixed to the pressing plates 10. Anti-slip strips 11 that are in contact with the surface of the tender document drawing are fixed to the lower ends of each pressing plate 10, and anti-slip protrusions 12 are provided on the lower surface of each anti-slip strip 11. Guide rails 13 for the longitudinal movement of the pressing plates 10 are provided in the middle parts of the fixed seat 8 and the movable seat 7. By setting the micro pen-type electric push rods 9, the pressing plates 10 and the anti-slip strips 11 inside the movable seat 7 and the fixed seat 8 to cooperate, the two sides of the tender document drawing are fixed. That is, before scanning the tender document drawing with the scanning head 3, the two sides of the tender document drawing are respectively placed into the middle parts of the fixed seat 8 and the movable seat. Subsequently, the switch of the micro pen-type electric push rod 9 is activated, and the telescopic end of the micro pen-type electric push rod 9 extends out, causing the pressing plate 10 to descend longitudinally along the direction of the guide rail 13. When the anti-slip strip 11 abuts against the upper surface of the tender document drawing, the fixing process is completed. The presence of the anti-slip strip 11 increases the friction between the pressing plate 10 and the tender document drawing, avoiding the situation that the smooth surface causes too small friction and the side of the drawing slips during the process of flattening the tender document drawing.

[0030] Among them, laser positioning lights 14 are fixed to the rear ends of the fixed seat 8 and the movable seat 7, and the lamp heads of the laser positioning lights 14 penetrate through the middle parts of the fixed seat 8 and the movable seat 7. A perspective protection plate 15 is sleeved outside the lamp heads of the laser positioning lights 14, and the perspective protection plate 15 is fixed to the inner wall of the fixed seat 8 or the movable seat by screws. Embedding grooves for installing the perspective observation plate 16 are provided at the upper ends of the fixed seat 8 and the movable seat. By setting the laser positioning lights 14, it helps the user to know whether the tender document drawing placed inside the movable seat and the fixed seat 8 is offset. That is, the laser line emitted by the laser positioning light 14 can be used to cover the upper surface of the tender document drawing, so that the user can judge whether the side of the drawing is offset by whether the ray emitted through the laser positioning light 14 is parallel to the side of the drawing.

[0031] Among them, the middle part of the lower end of the movable seat 7 is rotatably connected to the top end of the driving block 6 through a hinge shaft 17. A return spring 18 is provided between the movable seat 7 and the driving seat. Touch pressure sensors 19 are fixed on the outer sides of the two return springs 18. The touch pressure ends of the touch pressure sensors 19 are located below the bottom of the movable seat. A damper 20 is fixed to the upper end of the driving block 6. The telescopic ends of the two dampers 20 are rotatably connected to a connecting frame 22 through a rotating shaft 21. The connecting frame 22 is fixed to the bottom of the movable seat by screws. Considering that the driving block 6 is used to drive the movable seat to move horizontally to flatten the curled drawing, uneven force may cause damage to the tender drawing. Therefore, the device is designed with touch pressure sensors 19 to sense whether the drawing is in a flattened state. That is, when the movable seat is flattened by the transmission of the lead screw 23 and the threaded sleeve 26, after being stretched to the length of the hull, a tensile force will be generated. At this time, the movable seat hinged to the upper end of the driving seat is stressed and slightly tilted. At this time, the bottom of the movable seat contacts the detection end of the touch pressure sensor 19 at the upper end of the driving seat. At this time, the touch pressure sensor 19 is triggered, and after obtaining the analog quantity, it feeds back to the motor driver 25. The processor carried by the motor driver 25 processes the analog quantity information. The processed data result will cause the self-locking motor 24 to close. At this time, the drawing will be flattened and will not be damaged due to excessive stretching. The tilted starting seat will also be reset by the damping rod in cooperation with the return spring 18.

[0032] Among them, cavities for installing the lead screw 23 and the self-locking motor 24 are respectively opened inside the workbench 1. The output shaft of the self-locking motor 24 is fixed to the lead screw 23 through a coupling. The other end of the lead screw 23 is rotatably connected to the inner side wall of the cavity through a bearing. A driver 25 is provided at the front end of the self-locking motor 24. A threaded sleeve 26 is installed outside the lead screw 23. The upper end of the threaded sleeve 26 is fixed to the driving block 6 by screws. A through hole for the guide rod 27 to pass through is formed in the middle of the driving block 6. The guide rod 27 is fixedly installed inside the cavity and above the lead screw 23. The guide rod 27 plays a guiding role for the driving block 6.

[0033] Among them, a universal adjusting rod 28 is fixed to the upper end of the workbench 1 by screws. A supplementary light lamp holder 29 is fixed to the top end of the universal adjusting rod 28. A lamp strip 30 for supplementing ambient light is provided inside the supplementary light lamp holder 29. By providing the supplementary light lamp holder 29 in cooperation with the lamp strip 30, it provides supplementary light for the scanning head 3, avoiding the influence of poor light on the scanning clarity. And in order to facilitate the user to adjust the supplementary light angle, the supplementary light angle will be adjusted through the universal adjusting rod 28.

[0034] Wherein, positioning blocks 31 are fixedly arranged on the lower sides of the front and rear surfaces of the workbench 1, adjusting bolts 32 are threadedly connected to the middle of each positioning block 31, the bottom ends of each adjusting bolts 32 are rotatably connected to the supporting feet 33 through bearings, and a reference bubble 34 is further fixedly arranged on the front end surface of the workbench 1. By arranging the adjusting bolts 32 in cooperation with the positioning blocks 31, the workbench 1 is adjusted to be horizontal, avoiding the device being in an inclined state during placement and affecting scanning. When adjusting, observe whether the position of the bubble inside the reference bubble 34 is in the middle position to judge whether the workbench is in a horizontal state. When in an inclined state, the levelness of the workbench 1 is adjusted by tightening the adjusting bolts 32.

[0035] The present utility model is not limited to the above embodiments. Anyone should know that structural changes made under the inspiration of the present utility model, as long as they have the same or similar technical solutions as the present utility model, fall within the protection scope of the present utility model. The technologies, shapes, and structures not described in detail in the present utility model are all well-known technologies.

Claims

1. A high-precision bidding document and drawing recognition scanning device with automatic angle calibration, comprising a workbench (1), a three-dimensional multi-axis manipulator (2), a scanning head (3), a CCD visual module (4), an external computer data cable (5), a fixed seat (8) and a movable seat, characterized in that: A three-dimensional multi-axis manipulator (2) is installed on one side of the upper end of the workbench (1), a scanning head (3) is fixed at the end of the three-dimensional multi-axis manipulator (2), and CCD vision modules (4) connected to the control system of the three-dimensional multi-axis manipulator (2) are fixed on both sides of the housing of the scanning head (3), and an external computer data cable (5) connected to computer data is provided on one side of the control box of the three-dimensional multi-axis manipulator (2); The upper surface of the workbench (1) is provided with a reserved groove for horizontal movement of the driving block (6), and a movable seat (7) for fixing one side of the tender drawing is provided at the upper end of the driving block (6), and a fixed seat (8) is provided on the opposite side of the movable seat (7), and the fixed seat (8) is fixedly mounted on the upper end of the workbench (1) by means of screws.

2. The high-precision bidding document and drawing recognition and scanning device with automatic angle calibration according to claim 1 is characterized in that: The upper ends of the movable seat (7) and the fixed seat (8) are both fixed with miniature pen-type electric push rods (9), the telescopic ends of the two miniature pen-type electric push rods (9) respectively penetrate the middle of the movable seat (7) and the fixed seat (8) and are fixed to the pressing plate (10), the lower end of each pressing plate (10) is fixed with an anti-slip strip (11) in contact with the surface of the bid drawing, and the lower end surface of each anti-slip strip (11) is provided with an anti-slip protrusion (12), and the middle of the fixed seat (8) and the movable seat (7) are both provided with a guide rail (13) for the longitudinal movement of the pressing plate (10).

3. The high-precision bidding document and drawing recognition and scanning device with automatic angle calibration according to claim 1 is characterized in that: A laser positioning lamp (14) is fixed to the rear ends of the fixed seat (8) and the movable seat (7), and the lamp head of the laser positioning lamp (14) extends through the middle of the fixed seat (8) and the movable seat (7). The outer cover of the lamp head of the laser positioning lamp (14) is provided with a perspective protection plate (15), and the perspective protection plate (15) is fixed to the inner wall of the fixed seat (8) or the movable seat by screws. The upper ends of the fixed seat (8) and the movable seat are provided with an embedded groove for installing a perspective observation plate (16).

4. The high-precision bidding document and drawing recognition and scanning device with automatic angle calibration according to claim 1 is characterized in that: The middle part of the lower end of the movable seat (7) is rotatably connected to the top end of the driving block (6) through a hinge shaft (17); a reset spring (18) is provided between the movable seat (7) and the driving seat; and touch pressure sensors (19) are fixed to the outer sides of the two reset springs (18); and the touch pressure ends of the touch pressure sensors (19) are located below the bottom of the movable seat; a damper (20) is fixed to the upper end of the driving block (6); and the telescopic ends of the two dampers (20) are rotatably connected to a connecting frame (22) through a rotating shaft (21); and the connecting frame (22) is fixed to the bottom of the movable seat by screws.

5. The high-precision bidding document and drawing recognition and scanning device with automatic angle calibration according to claim 1 is characterized in that: The workbench (1) is provided with cavities for installing a screw rod (23) and a self-locking motor (24), respectively. The output shaft of the self-locking motor (24) is fixed to the screw rod (23) through a coupling, and the other end of the screw rod (23) is rotatably connected to the inner wall of the cavity through a bearing. A driver (25) is provided at the front end of the self-locking motor (24). A threaded sleeve (26) is installed on the outside of the screw rod (23), and the upper end of the threaded sleeve (26) is fixed to the driving block (6) through a screw, and a clearance hole for a guide rod (27) to pass through is provided in the middle of the driving block (6), and the guide rod (27) is fixedly installed in the cavity and located above the screw rod (23).

6. The high-precision bidding document and drawing recognition and scanning device with automatic angle calibration according to claim 1 is characterized in that: A universal adjustment rod (28) is fixed to the upper end of the workbench (1) by means of screws, a fill light holder (29) is fixed to the top end of the universal adjustment rod (28), and a light bar (30) for supplementing ambient light is provided inside the fill light holder (29).

7. The high-precision bidding document and drawing recognition and scanning device with automatic angle calibration according to claim 1 is characterized in that: Positioning blocks (31) are fixed to the lower sides of the front and rear surfaces of the workbench (1); an adjusting bolt (32) is threadedly connected to the middle of each positioning block (31); the outer bottom end of each adjusting bolt (32) is rotatably connected to a support foot (33) via a bearing; and a reference bubble (34) is also fixed to the front end surface of the workbench (1).

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