Bearing mechanism for large workpiece scanning imaging

Abstract

The utility model discloses a bearing mechanism for large workpiece scanning imaging, which relates to the technical field of workpiece scanning imaging and comprises a bottom plate and a top plate, four cylinders are fixedly connected to the top of the bottom plate, and a lifting plate is mounted at the tops of the cylinders. A lifting plate drives a first movable rod and a second movable rod to move, shaking in the lifting process is effectively counteracted, the workpiece is kept horizontal, meanwhile, a first transmission rod and a second transmission rod rotate along with movement of the lifting plate, the second transmission rod rotates stably under assistance of a second supporting frame, and the position of a clamping groove is changed. The clamping state of the limiting plate and the clamping groove is accurately controlled through the driving rod, so that the angle of the second transmission rod is limited, the design ensures that the workpiece keeps a stable position and posture in the scanning process, the transmission rods are prevented from moving freely, and the scanning precision and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece scanning and imaging, in particular to a supporting mechanism for scanning and imaging of a large workpiece. Background Art

[0002] Scanning imaging relies on detection elements and scanning lenses to sample the target object point by point and line by line in units of instantaneous field of view in order to obtain information on the electromagnetic radiation characteristics of the target object and form an image of a certain spectral range.

[0003] However, in the prior art, when scanning large workpieces, the equipment ages over time, resulting in unnecessary up and down shaking of the equipment during the scanning process. This shaking will directly cause fluctuations in the distance between the scanning equipment and the workpiece, which in turn has a serious impact on the accuracy of the scanning. In particular, in applications that require extremely high accuracy of scanning data, this shaking leads to inaccurate scanning results and also causes the scanning equipment to be unable to correctly read the information on the surface of the workpiece, resulting in data loss or damage. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that the scanning device cannot correctly read the information on the surface of the workpiece due to shaking, and proposes a supporting mechanism for scanning and imaging of a large workpiece.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a supporting mechanism for scanning and imaging of large workpieces, comprising a bottom plate and a top plate, the top of the bottom plate is fixedly connected with four cylinders, the top of the cylinder is installed with a lifting plate, the top of the lifting plate is fixedly connected with four fixing rods, the top of the fixing rods is fixedly connected with the top plate, the top of the bottom plate is installed with a locking mechanism, and the inner side of the top plate is installed with multiple positioning mechanisms;

[0006] The locking mechanism includes a first transmission rod and a second transmission rod, the bottom end of the first transmission rod is rotatably connected to the first support frame, the bottom end of the second transmission rod is rotatably connected to the second support frame, the top end of the first transmission rod is rotatably connected to the first movable rod, the top end of the second transmission rod is rotatably connected to the second movable rod, the top ends of the second movable rod and the first movable rod are both rotatably connected to the connecting frame, the top of the connecting frame is fixedly connected to the bottom of the lifting plate, a slot is provided at one end of the second transmission rod, a driving rod is provided under the second transmission rod, one end of the driving rod is fixedly connected to a fixing plate, the top of the fixing plate is fixedly connected to a limiting plate, and the limiting plate and the second support frame are clamped.

[0007] Preferably, the bottom of the second support frame is fixedly connected to the top of the base plate, and the bottom of the first support frame is fixedly connected to the top of the base plate.

[0008] Preferably, one end of the driving rod is rotatably connected to a fixing frame, the bottom of the fixing frame is fixedly connected to the top of the base plate, the top of the base plate is fixedly connected to a supporting plate, and the supporting plate and the limiting plate are slidably connected.

[0009] Preferably, the positioning mechanism comprises a mounting frame, the mounting frame is fixedly connected to the inner wall of the top plate, a threaded rod is rotatably connected to the center of the inner bottom of the mounting frame, and a lifting block is threadedly connected to the outer surface of the top end of the threaded rod.

[0010] Preferably, a sliding rod is fixedly connected to the top inner side of the mounting frame, and clamping plates are slidably connected to the outer surfaces of both ends of the sliding rod.

[0011] Preferably, both sides of the top of the lifting block are rotatably connected with linkage rods, and the top of the linkage rod is rotatably connected to the bottom end of the clamping plate.

[0012] Preferably, a reduction motor is installed on the top of the lifting plate, and the output end of the reduction motor is fixedly connected to the threaded rod.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, a plurality of cylinders work together to accurately control the height of the lifting plate to ensure the stability of the workpiece. The lifting plate drives the first movable rod and the second movable rod to move, effectively offsetting the shaking during the lifting process and keeping the workpiece level. At the same time, the first transmission rod and the second transmission rod rotate as the lifting plate moves, wherein the second transmission rod rotates stably with the assistance of the second support frame and changes the position of the slot. The driving rod accurately controls the clamping state of the limit plate and the slot, thereby limiting the angle of the second transmission rod. This design ensures that the workpiece maintains a stable position and posture during the scanning process, prevents the transmission rod from moving at will, and improves the scanning accuracy and efficiency.

[0015] 2. In the utility model, after the reduction motor is started, it drives the threaded rod to rotate, so that the lifting block matched with it moves vertically. The linkage rod converts the vertical movement of the lifting block into horizontal movement of the clamping plate, so that the clamping plates move toward each other to clamp large workpieces. The size of the clamping space can be accurately controlled by adjusting the motor speed and pitch to adapt to workpieces of different sizes. At the same time, multiple positioning mechanisms are distributed around the workpiece to form an all-round clamping system, which can quickly and evenly clamp the workpiece to ensure that it is stable and motionless in the predetermined position. This multi-point clamping method improves the firmness and stability of positioning and prevents the workpiece from shifting or shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a schematic diagram of the overall three-dimensional structure of a supporting mechanism for scanning and imaging of a large workpiece;

[0017] Figure 2The utility model provides a front view structural schematic diagram of a supporting mechanism and positioning mechanism for scanning and imaging of a large workpiece;

[0018] Figure 3 The utility model provides a three-dimensional structural schematic diagram of a supporting mechanism locking mechanism for scanning and imaging of a large workpiece;

[0019] Figure 4 The utility model provides a partial three-dimensional structural schematic diagram of a supporting mechanism and a locking mechanism for scanning and imaging of a large workpiece.

[0020] Legend: 1. Base plate; 2. Cylinder; 3. Positioning mechanism; 31. Mounting frame; 32. Reducer motor; 33. Threaded rod; 331. Lifting block; 34. Sliding rod; 35. Clamp; 36. Linkage rod; 4. Locking mechanism; 41. First movable rod; 42. First transmission rod; 43. First support frame; 44. Second movable rod; 45. Second transmission rod; 451. Slot; 452. Second support frame; 46. Support plate; 47. Connecting frame; 48. Fixed frame; 49. Drive rod; 491. Fixed plate; 492. Limiting plate; 5. Fixed rod; 6. Top plate; 7. Lifting plate. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1: Figure 1 , Figure 3 and Figure 4 As shown, the utility model provides a supporting mechanism for scanning and imaging of large workpieces, including a bottom plate 1 and a top plate 6, four cylinders 2 are fixedly connected to the top of the bottom plate 1, a lifting plate 7 is installed on the top of the cylinder 2, four fixing rods 5 are fixedly connected to the top of the lifting plate 7, the top of the fixing rods 5 is fixedly connected to the top plate 6, a locking mechanism 4 is installed on the top of the bottom plate 1, and a plurality of positioning mechanisms 3 are installed on the inner side of the top plate 6;

[0024] The locking mechanism 4 includes a first transmission rod 42 and a second transmission rod 45. The bottom end of the first transmission rod 42 is rotatably connected to the first support frame 43, the bottom end of the second transmission rod 45 is rotatably connected to the second support frame 452, the top end of the first transmission rod 42 is rotatably connected to the first movable rod 41, the top end of the second transmission rod 45 is rotatably connected to the second movable rod 44, the top end of the second movable rod 44 and the top end of the first movable rod 41 are both rotatably connected to a connecting frame 47, the top of the connecting frame 47 is fixedly connected to the bottom of the lifting plate 7, a slot 451 is provided at one end of the second transmission rod 45, a driving rod 49 is provided below the second transmission rod 45, one end of the driving rod 49 is fixedly connected to a fixing plate 491, the top of the fixing plate 491 is fixedly connected to a limiting plate 492, and the limiting plate 492 is clamped with the second support frame 452. The bottom of the second support frame 452 is fixedly connected to the top of the bottom plate 1, and the bottom of the first support frame 43 is fixedly connected to the top of the bottom plate 1. One end of the driving rod 49 is rotatably connected to a fixing frame 48 , the bottom of the fixing frame 48 is fixedly connected to the top of the bottom plate 1 , the top of the bottom plate 1 is fixedly connected to a supporting plate 46 , and the supporting plate 46 and the limiting plate 492 are slidably connected.

[0025] The specific configuration and functions of this embodiment are described in detail below. First, multiple cylinders 2 are started simultaneously to accurately control the height of the lifting plate 7. The coordinated action of these cylinders 2 ensures that the lifting plate 7 can be moved to a predetermined position smoothly and accurately, thereby ensuring that a large workpiece can remain stable during scanning.

[0026] As the lifting plate 7 is lifted, the first movable rod 41 and the second movable rod 44 connected thereto also start to move. Through the linkage with the lifting plate 7, they effectively offset the shaking and tilting that may occur during the lifting process, ensuring that the workpiece can remain horizontal during scanning.

[0027] At the same time, the first transmission rod 42 and the second transmission rod 45 also play a role in this process. With the movement of the lifting plate 7, the two transmission rods will also rotate. With the assistance of the second support frame 452, the second transmission rod 45 can rotate stably and change the position of the slot 451 during the rotation process.

[0028] The position change of the slot 451 is closely related to the engagement of the limit plate 492. The limit plate 492 is connected to the driving rod 49 through the fixing frame 48, which allows us to move the driving rod 49 as needed, thereby accurately controlling the engagement state of the limit plate 492 and the slot 451. When the limit plate 492 is successfully engaged with the slot 451, the angle of the second transmission rod 45 is accurately limited.

[0029] This design not only serves to determine the angle, but more importantly, it can prevent the second transmission rod 45 and the first transmission rod 42 from moving randomly during the lifting process. This stability is crucial for scanning large workpieces, because it can ensure that the workpiece always maintains a stable position and posture during the scanning process, thereby improving the accuracy and efficiency of the scanning.

[0030] Embodiment 2: Figure 1 and Figure 2 As shown, the positioning mechanism 3 includes a mounting frame 31, which is fixedly connected to the inner wall of the top plate 6, and a threaded rod 33 is rotatably connected to the center of the inner bottom of the mounting frame 31, and a lifting block 331 is threadedly connected to the outer surface of the top of the threaded rod 33. A sliding rod 34 is fixedly connected to the top of the inner top of the mounting frame 31, and a clamping plate 35 is slidably connected to the outer surface of both ends of the sliding rod 34. Both sides of the top of the lifting block 331 are rotatably connected to linkage rods 36, and the top of the linkage rod 36 is rotatably connected to the bottom of the clamping plate 35. A reduction motor 32 is installed on the top of the lifting plate 7, and the output end of the reduction motor 32 is fixedly connected to the threaded rod 33.

[0031] The effect achieved by the whole embodiment is that when the reduction motor 32 is started, it drives the threaded rod 33 to start rotating. The threads on the surface of the threaded rod 33 match the threads inside the lifting block 331, so that when the threaded rod 33 rotates, the lifting block 331 can move vertically along its surface.

[0032] As the lifting block 331 gradually moves downward, the linkage rod 36 connected thereto also starts to move. The linkage rod 36 is used to convert the vertical movement of the lifting block 331 into the horizontal movement of the clamping plate 35. This conversion mechanism ensures that when the lifting block 331 descends, the clamping plates 35 can move closer to each other, thereby achieving the clamping and positioning of large workpieces.

[0033] When the two clamping plates 35 start to move synchronously and approach each other under the drive of the linkage rod 36, they will form a precise clamping space. The size of this clamping space can be precisely controlled by adjusting the speed of the reduction motor 32 and the pitch of the threaded rod 33 to accommodate large workpieces of different sizes.

[0034] In addition, the entire positioning system also includes multiple positioning mechanisms 3. These positioning mechanisms 3 are distributed around the large workpiece to form an all-round clamping system. When all positioning mechanisms 3 are started at the same time, they can clamp the workpiece quickly and evenly and fix it in a predetermined position in a short time. This multi-point clamping method not only improves the firmness and stability of positioning, but also effectively prevents the workpiece from shifting or shaking during processing.

[0035] The use method and working principle of this device: During the positioning of large workpieces, the threaded rod 33 is driven to rotate by the operation of the reduction motor 32, thereby moving the lifting block 331 on the surface of the threaded rod 33. As the lifting block 331 gradually descends, it will push the linkage rod 36 to move, and the linkage rod 36 will then control the movement of the clamp 35. Since the bottom of the clamp 35 is slidably connected to the slide bar 34, the clamp 35 can only move in a straight line along the slide bar 34. When the two clamps 35 are driven by the linkage rod 36, they begin to move synchronously and gradually approach each other, thereby achieving the positioning of the large workpiece. The coordinated work of multiple positioning mechanisms 3 can quickly clamp and position the workpiece, and improve the firmness and stability of the positioning.

[0036] In the supporting process before scanning the large workpiece, the height of the lifting plate 7 is synchronously controlled by multiple cylinders 2. As the lifting plate 7 is raised and lowered, the second movable rod 44 and the first movable rod 41 will also move accordingly, thereby ensuring the stability of the lifting process. In this process, the first transmission rod 42 and the second transmission rod 45 will rotate, and the second transmission rod 45 will not only rotate with the assistance of the second support frame 452, but also change the position of the slot 451. The angle of the second transmission rod 45 can be limited by the engagement of the limit plate 492 with the slot 451, which not only plays the role of determining the angle, but also prevents the second transmission rod 45 and the first transmission rod 42 from moving at will.

[0037] In addition, during the lifting process, the position of the driving rod 49 can be adjusted through the fixing frame 48 to ensure that the limiting plate 492 can be accurately engaged with the slot 451 .

[0038] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A supporting mechanism for scanning and imaging a large workpiece, comprising a bottom plate (1) and a top plate (6), wherein the top of the bottom plate (1) is fixedly connected to four cylinders (2), a lifting plate (7) is installed on the top of the cylinder (2), four fixing rods (5) are fixedly connected to the top of the lifting plate (7), and the top of the fixing rod (5) is fixedly connected to the top plate (6), characterized in that: A locking mechanism (4) is installed on the top of the bottom plate (1), and a plurality of positioning mechanisms (3) are installed on the inner side of the top plate (6); The locking mechanism (4) comprises a first transmission rod (42) and a second transmission rod (45), the bottom end of the first transmission rod (42) is rotatably connected to the first support frame (43), the bottom end of the second transmission rod (45) is rotatably connected to the second support frame (452), the top end of the first transmission rod (42) is rotatably connected to the first movable rod (41), the top end of the second transmission rod (45) is rotatably connected to the second movable rod (44), the top end of the second movable rod (44) and the top end of the first movable rod (41) are both rotatably connected to a connecting frame (47), the top of the connecting frame (47) is fixedly connected to the bottom of the lifting plate (7), one end of the second transmission rod (45) is provided with a clamping groove (451), a driving rod (49) is arranged below the second transmission rod (45), one end of the driving rod (49) is fixedly connected to a fixing plate (491), the top of the fixing plate (491) is fixedly connected to a limiting plate (492), and the limiting plate (492) is clamped with the second support frame (452).

2. The supporting mechanism for scanning and imaging of large workpieces according to claim 1, characterized in that: The bottom of the second support frame (452) is fixedly connected to the top of the base plate (1), and the bottom of the first support frame (43) is fixedly connected to the top of the base plate (1).

3. The supporting mechanism for scanning and imaging of large workpieces according to claim 1, characterized in that: One end of the driving rod (49) is rotatably connected to a fixing frame (48), the bottom of the fixing frame (48) is fixedly connected to the top of the base plate (1), the top of the base plate (1) is fixedly connected to a supporting plate (46), and the supporting plate (46) and the limiting plate (492) are slidably connected.

4. The supporting mechanism for scanning and imaging of large workpieces according to claim 1, characterized in that: The positioning mechanism (3) comprises a mounting frame (31), the mounting frame (31) being fixedly connected to the inner wall of the top plate (6), and a threaded rod (33) being rotatably connected to the center of the inner bottom of the mounting frame (31), and a lifting block (331) being threadedly connected to the outer surface of the top end of the threaded rod (33).

5. The supporting mechanism for scanning and imaging of large workpieces according to claim 4, characterized in that: A sliding rod (34) is fixedly connected to the top inner side of the mounting frame (31), and clamping plates (35) are slidably connected to the outer surfaces of both ends of the sliding rod (34).

6. The supporting mechanism for scanning and imaging of a large workpiece according to claim 5, characterized in that: Both sides of the top end of the lifting block (331) are rotatably connected to linkage rods (36), and the top end of the linkage rod (36) is rotatably connected to the bottom end of the clamping plate (35).

7. The supporting mechanism for scanning and imaging of a large workpiece according to claim 6, characterized in that: A reduction motor (32) is installed on the top of the lifting plate (7), and the output end of the reduction motor (32) is fixedly connected to the threaded rod (33).

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