Image mapping device

Abstract

The utility model discloses an image surveying and mapping device, and relates to the technical field of measuring equipment. The technical key points are that the system comprises an image mapping host, and a measuring table of the image mapping host is provided with two lifting mechanisms; the lifting mechanism comprises a guide rail, a plurality of vertical adjusting main frames are movably installed on the side, facing the center of a measuring table of the image surveying and mapping host, of the guide rail, and the adjusting main frames can move in the length direction of the guide rail. A horizontal fork rod is movably installed on each adjusting main frame, and the fork rods can freely move on the adjusting main frames at the corresponding positions in the vertical direction. Compared with the prior art, when the device is used for surveying and mapping the irregular object, the trouble that a worker holds the irregular object with hands can be omitted, the supporting effect on the irregular object is good, and therefore the measurement precision of the irregular object can be effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of measuring equipment, in particular to an image surveying device. BACKGROUND

[0002] The image surveying device is also called an image measuring instrument, which is a measuring equipment based on machine vision technology. The image surveying device captures the image of the measured object through a high-resolution camera, analyzes and processes the image by using an image processing algorithm, and thus realizes the accurate measurement of the size of the measured object. The image measuring instrument has the characteristics of non-contact, high precision and high efficiency, and thus is widely used in many fields.

[0003] For example, in geological exploration, the laboratory often needs to calibrate the size of some collected mineral specimens. The image surveying device is used in the calibration process. In addition, the image surveying device can also be used in the manufacturing industry of parts, and plays an important role in the size measurement and quality control of parts, so as to help enterprises find problems in the production process in time and improve product quality and production efficiency. These objects (such as the above-mentioned mineral specimens and parts) are usually irregular in shape. For example, in the measurement process, in order to make the axis of the circular truncated cone-shaped part in a horizontal state (so as to obtain the side view of the part by the image surveying device and compare the relevant data in the design drawing to obtain the relevant deviation range), the detection personnel often need to temporarily lift the small-diameter end of the circular truncated cone-shaped part by hand to find the level. This not only makes the operation inconvenient, but also may affect the measurement accuracy of the data due to the hand shaking of the detection personnel. CONTENT OF THE UTILITY MODEL

[0004] The present application provides an image surveying device, which can improve the measurement accuracy of the object while facilitating the operation of the worker when measuring the irregular object.

[0005] The above object of the present application is achieved by the following technical scheme:

[0006] An image surveying device comprises an image surveying host, two lifting mechanisms are symmetrically arranged along the width direction of the table surface of the measuring table of the image surveying host, and the two lifting mechanisms are used to lift the irregular object to the required state when measuring the irregular object.

[0007] The lifting mechanism comprises a guide rail fixedly laid along the length direction of the measuring table of the image surveying host, a plurality of vertical adjusting main frames are movably arranged on one side of the guide rail towards the center of the measuring table of the image surveying host, the adjusting main frames can move along the length direction of the guide rail, a horizontal fork rod is movably arranged on each adjusting main frame, and the fork rod can freely move in the vertical direction on the corresponding adjusting main frame.

[0008] Further, two adjusting main frames are installed on each guide rail.

[0009] Further, the guide rail is internally provided with a cavity, and the guide rail is open on one side towards the center of the measuring table of the image mapping main machine. The lower end of the adjusting main frame is inserted into the cavity of the guide rail from the open side of the guide rail in the horizontal direction and is connected in sliding manner.

[0010] Further, a guide cylinder is provided in the cavity of the guide rail along the length direction of the guide rail, and the two ends of the guide cylinder are fixedly connected with the two ends of the guide rail. The part of the adjusting main frame inserted into the cavity of the guide rail is movably sleeved on the guide cylinder. The top of the guide rail is also open, and the top of the part of the adjusting main frame inserted into the cavity of the guide rail is exposed. The lower end of the adjusting main frame is threadedly connected with a first adjusting bolt on the top of the part of the adjusting main frame inserted into the cavity of the guide rail.

[0011] Further, a groove is provided on the side of the adjusting main frame away from the guide rail along the length direction of the adjusting main frame. A threaded rod is provided in the groove in penetrating manner and is connected in rotating manner with the groove. The upper end of the threaded rod is connected with a driving turntable after penetrating through the top of the adjusting main frame. A moving block with a width equal to the width of the groove is fixedly connected with the end of the fork rod close to the adjusting main frame. The moving block is threadedly connected with the threaded rod after being sleeved on the threaded rod in the groove.

[0012] Further, a support limiting unit freely movable along the length direction of the fork rod is installed on the fork rod. The support limiting unit can limit the movement of the object to be detected along the width direction of the measuring table of the image mapping main machine.

[0013] Further, the support limiting unit comprises a wedge block on the fork rod towards one side of the center of the measuring table of the image mapping main machine. The inclined surface of the wedge block is away from the side of the adjusting main frame on which the fork rod is installed. A fixed sleeve is movably sleeved on the fork rod. The fixed sleeve and the side close to the wedge block are fixedly connected. A second adjusting bolt is inserted into the fixed sleeve and is threadedly connected with the fixed sleeve.

[0014] In summary, the present application has at least one of the following beneficial technical effects:

[0015] The adjustment main frame of the two lifting mechanisms located on the measuring platform of the image surveying and mapping host of the present application can move freely along the length direction of the guide rail, and the fork rod on the adjustment main frame can move freely along the vertical direction on the adjustment main frame. In this way, when measuring some irregular objects, the surveyor can adjust the spatial position of multiple fork rods to a suitable state according to the shape contour of the object to ensure that the irregular object can be kept in a horizontal state when placed on multiple fork rods. Since the image surveying and mapping device of the present application uses multiple flexibly adjustable fork rods instead of human hands to lift irregular objects to the state required for detection, this not only reduces the burden on the surveyor when lifting objects, but also because the adjusted equipment has a lower risk of human jitter than human hands, this can effectively improve the measurement accuracy of irregular objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of this application;

[0018] Figure 2 This is a schematic diagram of the structure of the measuring platform of the image surveying and mapping host computer of this application and its related components;

[0019] Figure 3 It is a schematic diagram of the state when a truncated cone-shaped irregular object is placed on the measuring table of the present application;

[0020] Figure 4 It is a schematic diagram of the state when another irregular object that is more complex than the frustum-shaped object is placed on the measuring table of the present application.

[0021] Figure numerals: 1. Image mapping host; 2. Measuring platform; 3. Lifting mechanism; 31. Guide rail; 32. Adjusting main frame; 33. Fork rod; 4. Guide cylinder; 5. First adjusting bolt; 6. Groove; 7. Threaded rod; 8. Driving turntable; 9. Moving block; 10. Support and limiting unit; 101. Wedge block; 102. Fixing sleeve; 103. Second adjusting bolt. DETAILED DESCRIPTION

[0022] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are described clearly and completely below. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0023] As shown in Figure 1 and Figure 2 An image mapping device disclosed by the present application comprises an image mapping host 1, two lifting mechanisms 3 are symmetrically arranged along the width direction of the table surface of a measuring table 2 of the image mapping host 1, and the two lifting mechanisms 3 are used to lift irregular objects to a required state when the irregular objects are measured.

[0024] The lifting mechanism 3 comprises a guide rail 31 fixedly laid along the length direction of the measuring table 2 of the image mapping host 1, a plurality of vertical adjusting main frames 32 movably mounted on one side of the guide rail 31 towards the center of the measuring table 2 of the image mapping host 1, and the adjusting main frames 32 can move along the length direction of the guide rail 31; one horizontal fork rod 33 is movably mounted on each adjusting main frame 32, and the fork rod 33 can freely move in the vertical direction on the corresponding adjusting main frame 32.

[0025] In the above embodiments, in the actual production process, in addition to the structural regular objects (such as rectangular objects), there are also many irregular objects (for the convenience of description and illustration, take the circular truncated cone object as an example), when using the image mapping device to detect regular objects, only need to be placed on the measuring table 2 of the image mapping device, and make its to be detected face towards the probe of the image mapping host 1, but for irregular objects, if they are placed on the measuring table 2, it is difficult for them to keep balance, for example, if the circular truncated cone object is directly placed on the measuring table 2, the lower side of the small diameter end and the lower side of the large diameter end will be in contact with the measuring table 2 at the same time, at this time, the projection of the circular truncated cone object on the horizontal plane is an irregular shape with arc lines at both ends, and the probe above the measuring table 2 will also obtain the irregular shape when taking a photo for measurement, generally, the design drawing of the circular truncated cone object mainly consists of three views, if the image mapping host 1 directly compares the irregular shape with the design drawing, there will be obvious errors. Therefore, the detection personnel often hold up the small diameter end of the circular truncated cone object with their hands until the axis is in a horizontal state, so that the image view angle captured by the probe of the image mapping host 1 will be the same as the view angle of one of the views in the design drawing. However, the detection personnel may need to control the image mapping host 1 during the process of holding up the irregular object, which will obviously be inconvenient, if an additional detection personnel is added to hold up the irregular object, it will affect other work in the laboratory, and during the process of holding up the object by the detection personnel, the hands will inevitably shake due to matching or other reasons, which will easily affect the detection accuracy of the object.

[0026] In the present application, one lifting mechanism 3 is arranged on each side of the width direction of the measuring table 2, and each lifting mechanism 3 contains a plurality of adjusting main frames 32 movably installed along the respective guide rails 31, and the adjusting main frames 32 are provided with fork rods 33 freely movable in the vertical direction, when the adjusting main frames 32 are moved along the guide rails 31, the adjusting main frames 32 will move along the length direction of the guide rails 31 together with the fork rods 33, and the fork rods 33 can freely move in the vertical direction on the adjusting main frames 32, so that the position of each fork rod 33 in the length direction of the measuring table 2 and the position in the vertical direction can be freely adjusted, as shown in Figure 3 and Figure 4 When measuring some irregular objects, the measurement personnel can adjust the spatial positions of the plurality of fork rods 33 to a suitable state according to the shape profile of the object, so as to ensure that the irregular object can be kept in a horizontal state when placed on the plurality of fork rods 33, since the image mapping device of the present application uses a plurality of flexibly adjustable fork rods 33 to replace human hands to hold up the irregular object to the required state for detection, not only the burden of the measurement personnel when holding up the object can be reduced, but also the risk of artificial shaking of the adjusted device is lower than that of human hands, so that the measurement accuracy of the irregular object can be effectively improved.

[0027] Further, as Figure 1 and Figure 2 shown, two adjusting main frames 32 are mounted on each guide rail 31.

[0028] In the above embodiment, two adjusting main frames 32 are arranged on each guide rail 31, so that there are four adjusting main frames 32 in total on the two guide rails 31. When providing support for irregular objects, the four prongs 33 on the four adjusting main frames 32 can provide four support points for the irregular objects. Compared with arranging one adjusting main frame 32 on each guide rail 31, the present application has better stability. Compared with arranging three or more adjusting main frames 32 on each guide rail 31, the present application has lower cost and occupies less space on the measuring table 2.

[0029] Further, as Figure 2 shown, the guide rail 31 is internally provided with a cavity, and the side of the guide rail 31 facing the center of the measuring table 2 of the image mapping host 1 is of an open structure. The lower end of the adjusting main frame 32 is inserted into the cavity of the guide rail 31 from the opening on the side of the guide rail 31 and is slidingly connected with the guide rail 31.

[0030] In the above embodiment, the lower end of the adjusting main frame 32 is provided with a horizontal section facing one side of the guide rail 31. The horizontal section of the adjusting main frame 32 is inserted into the cavity of the guide rail 31 from the opening on the side of the guide rail 31. In this way, when the adjusting main frame 32 moves along the guide rail 31, the guide rail 31 can guide the adjusting main frame 32 to move stably and not to shake.

[0031] Further, as Figure 2 shown, a guide cylinder 4 is arranged in the cavity of the guide rail 31 along the length direction of the guide rail 31. The two ends of the guide cylinder 4 are fixedly connected with the two ends of the guide rail 31. The part of the adjusting main frame 32 inserted into the cavity of the guide rail 31 is movably sleeved on the guide cylinder 4. The top of the guide rail 31 is also of an open structure. The opening on the top of the guide rail 31 exposes the top of the part of the adjusting main frame 32 inserted into the cavity of the guide rail 31. The top of the part of the adjusting main frame 32 inserted into the cavity of the guide rail 31 is threadedly connected with a first adjusting bolt 5.

[0032] In the above embodiment, the part of the adjusting main frame 32 located in the cavity of the guide rail 31 is sleeved on the guide cylinder 4, and the guide cylinder 4 can cooperate with the guide rail 31 to provide a guiding effect for the adjusting main frame 32 to make the movement process more stable. The first adjusting bolt 5 is inserted into the position corresponding to the part of the adjusting main frame 32 located in the cavity of the guide rail 31 in the opening on the upper side of the guide rail 31, and the lower end of the first adjusting bolt 5 is inserted into the part of the adjusting main frame 32 located in the cavity of the guide rail 31. During the movement of the adjusting main frame 32, the tester can loosen the adjusting bolt, so that the lower end of the adjusting bolt is not in contact with the guide cylinder 4. After the adjusting main frame 32 is moved to the appropriate position, the tester can tighten the adjusting bolt, so that the lower end of the adjusting bolt is in abutment with the guide cylinder 4. In this way, the adjusting bolt can form a restriction on the adjusting main frame 32 through the frictional force between the adjusting bolt and the guide cylinder 4, so as to prevent the adjusting main frame 32 from deviating during use.

[0033] Further, as shown in Figure 2 , the adjusting main frame 32 is provided with a groove 6 along the length direction away from the guide rail 31, a threaded rod 7 is inserted into the groove 6 and rotationally connected with the groove 6, the upper end of the threaded rod 7 is connected with a driving disc 8 after penetrating through the top of the adjusting main frame 32, and the end of the fork rod 33 close to the adjusting main frame 32 is fixedly connected with a moving block 9 with a width equal to that of the groove 6, the moving block 9 is sleeved on the threaded rod 7 in the groove 6 and threadedly connected with the threaded rod 7.

[0034] In the above embodiment, since the fork rod 33 needs to bear the gravity of the object during use, the force generated by the gravity acting on the adjusting main frame 32 is also vertically downward. At this time, if the way of balancing the gravity of the object by friction between the adjusting main frame 32 and the fork rod 33 in the last embodiment is adopted, when the weight of the object is large, there may be a risk of accidental falling during use. Therefore, the present application chooses to arrange the threaded rod 7 in the groove 6 of the adjusting main frame 32, and place the moving block 9 in the groove 6, and the moving block 9 is not only connected with the fork rod 33 but also sleeved on the threaded rod 7 and threadedly connected with the threaded rod 7. In this way, when the tester needs to adjust the position of the fork rod 33 in the vertical direction, the driving disc 8 is rotated to make the threaded rod 7 rotate in the adjusting main frame 32, and the threaded rod 7 drives the fork rod 33 to move in the vertical direction through the moving block 9. The principle is the same as that of the screw slide. When the object to be detected is placed on the fork rod 33, the external threads on the threaded rod 7 provide a vertically upward supporting force to the fork rod 33 through the moving block 9. The supporting effect of this structure is obviously better and more stable.

[0035] Further, as shown in Figure 2 , the fork rod 33 is provided with a support limiting unit 10 which can freely move along the length direction of the fork rod 33, and the support limiting unit 10 can limit the movement of the object to be detected in the width direction of the measuring table 2 of the image surveying host 1.

[0036] In the above embodiment, if the irregular object is directly placed on the fork rod 33 (such as a round table-shaped object), there is a risk of rolling of the round table-shaped object during the detection process due to the lack of restriction along the width direction of the round table-shaped object. Therefore, the support limiting unit 10 is additionally arranged on the fork rod 33 to provide a supporting force to the object to be detected and restrict the movement of the object along the width direction of the measuring table 2 of the image mapping host 1, so as to ensure the stability of the object detection process.

[0037] Further, as shown in Figure 2 the support limiting unit 10 includes a wedge block 101 arranged on the fork rod 33 and located on one side of the center of the measuring table 2 of the image mapping host 1. The inclined surface of the wedge block 101 is directed away from the adjusting main frame 32 to which the fork rod 33 is arranged. A fixing sleeve 102 is movably arranged on the fork rod 33 and fixedly connected to the side of the wedge block 101. A second adjusting bolt 103 is arranged in the fixing sleeve 102 and threadedly connected to the fixing sleeve 102.

[0038] In the above embodiment, the wedge block 101 of the present application can move along the length direction of the fork rod 33 through the fixing sleeve 102. In combination with the moving direction of the fork rod 33 and the adjusting main frame 32, the wedge block 101 of the present application has three adjusting degrees of freedom in use, which can further improve the application range of the image mapping device of the present application. Moreover, the inclined surface of the wedge block 101 is directed away from the adjusting main frame 32 at the corresponding position. Therefore, in use, the inclined surfaces of the wedge blocks 101 on the two guide rails 31 are both directed to the middle position. Therefore, when measuring some irregular objects, the wedge blocks 101 can form a limiting position for the irregular objects by using the inclined surfaces thereof, so as to reduce the risk of deviation of the irregular objects during the measurement process, as shown in Figure 3 when the round table-shaped irregular object is placed on the four wedge blocks 101 of the present application, the wedge blocks 101 can support the round table-shaped object and form a limiting position for the round table-shaped object by using the inclined surfaces of the wedge blocks 101, so as to prevent the round table-shaped object from shaking along the width direction of the measuring table 2 during the detection process, as shown in Figure 4 when another irregular part more complex than the round table-shaped object is placed on the four wedge blocks 101 of the present application, the same effect can be achieved. The second adjusting bolt 103 arranged on the fixing sleeve 102 has a similar use principle as the first adjusting bolt 5. When it is needed to move the wedge block 101, the second adjusting bolt 103 is loosened. When the position of the wedge block 101 is adjusted, the second adjusting bolt 103 is tightened, so that the end portion of the second adjusting bolt 103 is tightly arranged against the fork rod 33.

[0039] The implementation principle of the embodiment is: when the object needs to be tested, if the shape of the object is regular and can be stably self-standing on the measuring table 2, the object can be directly placed on the measuring table 2 according to the needs and measured by the image mapping host 1. If the shape of the object is irregular, the measuring personnel can adjust the position of one of the adjusting main frames 32 on the corresponding guide rail 31 according to the actual situation of the object, so that the fork rod 33 on the adjusting main frame 32 approaches one of the convenient support points on the irregular object, and then the height of the wedge-shaped block 101 in the vertical direction is adjusted by rotating the threaded rod 7 on the adjusting main frame 32 through the driving turntable 8, so that the height of the wedge-shaped block 101 in the vertical direction approaches the support point to be supported on the irregular object. Next, the wedge-shaped block 101 is moved on the fork rod 33 to support the support point to be supported on the irregular object by the wedge-shaped block 101, and the subsequent adjusting main frame 32, fork rod 33 and wedge-shaped block 101 are adjusted accordingly. The measuring personnel can adjust the position of the adjusting main frame 32, fork rod 33 and wedge-shaped block 101 in real time according to the actual situation during the adjustment process, so as to ensure that the irregular object is stably supported on the measuring table 2, and the surface to be mapped of the irregular object faces the probe of the image mapping host 1. At this time, the device can be started to start formal measurement work. Compared with the prior art, when the irregular object is mapped, the device of the present application can not only save the trouble of manually holding the irregular object, but also has good support effect on the irregular object, thereby effectively improving the measurement accuracy of the irregular object.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions described in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An image mapping device comprising an image mapping host (1), characterized in that: Two lifting mechanisms (3) are symmetrically arranged along the width direction of the table surface of the measuring table (2) of the image mapping host (1), and are used to lift irregular objects to a required state when measuring the irregular objects; The lifting mechanism (3) comprises a guide rail (31) fixedly arranged along the length direction of the measuring table (2) of the image mapping host (1), a plurality of vertical adjusting main frames (32) movably arranged on one side of the guide rail (31) towards the center of the measuring table (2) of the image mapping host (1), and the adjusting main frames (32) are movable along the length direction of the guide rail (31); a horizontal fork rod (33) is movably arranged on each adjusting main frame (32) and is freely movable in the vertical direction on the corresponding adjusting main frame (32).

2. The image mapping device of claim 1, wherein: Two adjusting main frames (32) are arranged on each guide rail (31).

3. The image mapping device of claim 2, wherein: The guide rail (31) is internally provided with a cavity, one side of the guide rail (31) towards the center of the measuring table (2) of the image mapping host (1) is in an open structure, and the lower end of the adjusting main frame (32) is inserted into the cavity of the guide rail (31) from the opening of the side of the guide rail (31) and is slidably connected with the guide rail (31).

4. The image mapping device of claim 3, wherein: A guide cylinder (4) is arranged in the cavity of the guide rail (31) along the length direction of the guide rail (31), both ends of the guide cylinder (4) are fixedly connected with both ends of the guide rail (31), and the part of the adjusting main frame (32) inserted into the cavity of the guide rail (31) is movably sleeved on the guide cylinder (4); the top of the guide rail (31) is also in an open structure, the opening of the top of the guide rail (31) can expose the top of the part of the adjusting main frame (32) inserted into the cavity of the guide rail (31), and a first adjusting bolt (5) is threadedly connected with the top of the part of the adjusting main frame (32) inserted into the cavity of the guide rail (31).

5. The video mapping device according to any one of claims 1 to 3, characterized in that: A recess (6) is arranged on the side of the adjusting main frame (32) away from the guide rail (31) along the length direction of the adjusting main frame (32), a threaded rod (7) is arranged in the recess (6) and is rotatably connected with the recess (6), the upper end of the threaded rod (7) is connected with a driving turntable (8) after penetrating through the top of the adjusting main frame (32), one end of the fork rod (33) close to the adjusting main frame (32) is fixedly connected with a moving block (9) with a width equal to the width of the recess (6), the moving block (9) is sleeved on the threaded rod (7) in the recess (6) and is threadedly connected with the threaded rod (7).

6. The image mapping device of claim 1, wherein: A supporting and limiting unit (10) freely movable along the length direction of the fork rod (33) is arranged on the fork rod (33), and the supporting and limiting unit (10) can limit the movement of the object to be detected along the width direction of the measuring table (2) of the image mapping host (1).

7. The image mapping device of claim 6, wherein: The support limiting unit (10) includes a wedge block (101) on the fork rod (33) towards one side of the center of the measuring table (2) on the image mapping host (1), the slope of the wedge block (101) is towards the side away from the adjusting main frame (32) where the fork rod (33) is installed, a fixed sleeve (102) is movably sleeved on the fork rod (33), the fixed sleeve (102) and the adjacent side of the wedge block (101) are fixedly connected, a second adjusting bolt (103) is inserted on the fixed sleeve (102) and is threadedly connected therebetween.

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