Variable-size full-automatic concrete preformed hole device

Abstract

The utility model relates to the technical field of concrete preformed holes, in particular to a size-variable full-automatic concrete preformed hole device. The three-dimensional movement device drives the center rod to move in a three-dimensional mode, the first nut and the second nut are in threaded connection with the center rod, and the thread rotating directions are opposite. The first motor rotating disc and the second motor rotating disc are installed on the center rod, the first sheet-shaped scale strip and the second sheet-shaped scale strip are hinged to the first nut and the second nut respectively, and the first sheet-shaped scale strip and the second sheet-shaped scale strip are connected through the spring. The roll wrapper moving device drives the roll wrapper to move, and the first motor turntable and the second motor turntable drive the roll wrapper to be wound on the controller; the controller is fixedly connected to the first sheet-shaped scale strip, the second sheet-shaped scale strip or the spring. Full-automatic control is achieved, taking out is easy, no impurities are left in holes, and the hole diameter size and the bonding strength when secondary pouring is needed can be guaranteed; and meanwhile, the size can be changed, and the manufacturing requirements of concrete preformed holes of different shapes and sizes are met.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete reserved holes, in particular to a fully automatic concrete reserved hole device with variable sizes. Background Art

[0002] Concrete reserved holes refer to holes reserved in concrete structural components (such as beams and slabs) during construction to meet certain special needs (such as water, electricity, heating pipes, embedded bolts for equipment, etc.). Common reserved holes are round holes and square holes.

[0003] The existing method for constructing a reserved hole in concrete mainly uses a wooden mold or an iron mold to reserve in advance, and then removes the wooden mold or the iron mold after the concrete is poured and a certain strength is formed. Although the wooden mold is low in cost and easy to remove, its disadvantages are that it is difficult to fix, the aperture size is difficult to guarantee, and the debris left in the hole is difficult to remove. The iron mold overcomes the above-mentioned disadvantages of the wooden mold, but the cost is high, the size of the reserved hole is limited by the size of the iron pipe on the market, and the iron pipe is difficult to remove from the hole (the bonding performance of concrete and iron is good); the part of the iron mold exposed outside the hole is often cut off at the construction site, and the iron mold is left in the hole, causing a lot of waste. Regardless of whether it is a wooden mold or an iron mold, it needs to be made or purchased on site according to the reserved holes of different sizes; in addition, the side walls of the reserved holes formed by the wooden mold and the iron mold are relatively smooth, which is not conducive to the bonding of the new and old concrete in the case of secondary grouting. Moreover, the existing concrete reserved hole device and its construction method have a low degree of automation, and both require manual operation, low construction efficiency, high labor intensity, and unstable quality of the reserved hole.

[0004] In summary, (1) the existing concrete pre-hole cutters cannot achieve the goal of being easy to remove, leaving no debris in the hole, and ensuring the hole diameter size. (2) The existing concrete pre-hole cutters and their construction methods have a low degree of automation, low construction efficiency, high labor intensity, and unstable pre-hole quality. (3) The existing concrete pre-hole cutters can only produce concrete pre-holes of fixed shape and size. Once the shape and size of the concrete pre-hole change, a new concrete mold must be made. The mold can only be used once, has a low utilization rate, and has a high cost of use. (4) The existing concrete mold cannot ensure the roughness of the side wall of the concrete pre-hole. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the utility model provides a fully automatic concrete pre-hole device with variable size, which is fully automatically controlled, easy to take out, has no debris left in the hole, can ensure the hole diameter size, and the bonding strength when secondary pouring is required in the hole; at the same time, it can change the size to meet the production requirements of concrete pre-holes of different shapes and sizes.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A fully automatic concrete hole preserving device with variable size comprises a three-dimensional motion device, a center rod, a first nut, a second nut, a first motor turntable, a second motor turntable, a first sheet scale bar, a second sheet scale bar, a skin rolling moving device, a controller and a skin rolling device; the three-dimensional motion device supports the center rod, drives the center rod to move three-dimensionally, and drives the center rod to rotate around its own axis; the first nut and the second nut are threadedly connected to the center rod, and the thread rotation directions are opposite; the first motor turntable and the second motor turntable are installed on the center rod, and are located between the first nut and the second nut; the first sheet scale bar and the second sheet scale bar are connected to the center rod, and the first sheet scale bar and the second sheet scale bar are connected to the center rod ... The scale bars are hinged on the first nut and the second nut respectively, and are placed on the first motor turntable and the second motor turntable respectively. The first sheet-like scale bar and the second sheet-like scale bar are connected by a spring; the skin rolling moving device is installed on the center rod, and the skin rolling is installed on the skin rolling moving device. The fifth a, fifth b, seventh a, and seventh b servo motors of the skin rolling moving device drive the skin rolling to move, the sixth a servo motor of the first motor turntable and the sixth b servo motor of the second motor turntable are connected to the skin rolling, and drive the skin rolling to be wound around the controller; the controller is fixedly connected to the first sheet-like scale bar, the second sheet-like scale bar or the spring.

[0008] Furthermore, the three-dimensional motion device includes a support column, a tripod, a first servo motor, a support arm, a counterweight, a Y-direction guide rail, a second servo motor, a Y-direction push-pull rod, a third servo motor, an X-direction push-pull rod and a fourth servo motor; the support column is fixed to a fixed surface through the tripod, the first servo motor is installed on the support column, the support arm is installed on the first servo motor, and the first servo motor drives the support arm to rotate; the second servo motor and the Y-direction guide rail are installed on the support arm, and the second servo motor drives the third servo motor to move along the Y-direction guide rail through the Y-direction push-pull rod; the third servo motor drives the fourth servo motor to move in the X direction through the X-direction push-pull rod.

[0009] Furthermore, it also includes a guide rail rod, which passes through the first nut, the first motor turntable, the second motor turntable and the second nut in sequence for guiding.

[0010] Furthermore, the controller comprises a control ring and a control sheet, the control ring is fixedly connected to the first sheet-like scale strip and the second sheet-like scale strip, and the control sheet is fixedly connected to the spring.

[0011] Furthermore, the ends of the first sheet-like scale strip and the second sheet-like scale strip are both provided with through holes, and hooks are provided at both ends of the spring. The two ends of the spring are respectively hung on the first sheet-like scale strip and the second sheet-like scale strip, and the spring is always in a tension state.

[0012] Furthermore, the roll skin is made of thin iron sheet with a thickness of less than 0.5 mm, and the outer surface is provided with notches, which is a tape measure structure.

[0013] Furthermore, there are four first sheet scale bars and four second sheet scale bars, and the hinge points between the four first sheet scale bars and the first nut are rectangular, and the hinge points between the four second sheet scale bars and the second nut are rectangular, which are used to make circular reserved holes or rectangular reserved holes. If the reserved holes are of other shapes, the number of control points can be determined according to the shape of the reserved holes, thereby determining the number of the first sheet scale bars and the second sheet scale bars.

[0014] Furthermore, the skin rolling moving device includes the fifth a, fifth b, sixth a, sixth b, seventh a, and seventh b servo motors; it also includes a hole-making push-pull rod and a hole-making guide rail; the fifth a, fifth b, sixth a, and sixth b servo motors are installed on the center rod, the hole-making push-pull rod is connected to the fifth a and fifth b servo motors, and the hole-making guide rail, seventh a, and seventh b servo motors are installed on the hole-making push-pull rod.

[0015] Furthermore, it also includes a control system, which includes a host computer, a human-machine interface, first to fourth position sensors, a camera and an optical sensor, a sixth position sensor, a tripod motor and a motion control card; the host computer, the human-machine interface, the first to fourth position sensors, the camera and an optical sensor, the sixth position sensor, the motion control card, the first to seventh b servo motors, and the tripod motor are electrically connected.

[0016] Compared with the prior art, the utility model has at least the following technical effects or advantages:

[0017] 1. The host computer of the utility model controls the rotation of the tripod motor to unfold the tripod, and fixes the device on the fixed surface through the tripod; the host computer controls the first to third servo motors to rotate, so that the center rod moves in three-dimensional space, and cooperates with the camera and the optical sensor to move and fix the center rod just above the reserved hole position required on site, so that the center rod is centered; the host computer controls the fourth servo motor to drive the center rod to rotate according to the calculation model, so that point B or point C reaches the set position; the host computer controls the fifth a, fifth b, seventh a, and seventh b servo motors to rotate, drive the rolling skin to move, and the host computer controls the sixth a servo motor, the sixth b servo motor The servo motor rotates to drive the rolled skin to wrap around the controller; the host computer controls the second servo motor to drive the center rod to move downward, so that the center rod moves and is fixed at the required reserved hole position on site; concrete is poured on site, and after the concrete is initially solidified, the host computer controls the fourth servo motor to drive the center rod to rotate, so that the first nut and the second nut move in opposite directions, thereby reducing the size of the controller; at the same time, the host computer controls the sixth a servo motor and the sixth b servo motor to rotate to return the rolled skin to its original position, and the host computer controls the second servo motor to move the center rod upward and out of the hole; finally, the host computer controls the tripod motor to rotate, retracts the tripod, and takes away the entire reserved hole device.

[0018] The utility model realizes automatic operation in the whole process of making the concrete reserved hole, has high construction efficiency, saves labor cost and ensures stable quality of the reserved hole.

[0019] The utility model can meet the production requirements of concrete reserved holes of different shapes and sizes: by rotating the center rod, the first nut and the second nut are driven to move toward or away from each other along the center rod at the same time, and the size of the controller is adjusted so that the size of the controller is consistent with the size of the concrete reserved hole; thus, it can adapt to concrete reserved holes of different sizes, and the hole diameter size can be guaranteed, and it can be used multiple times with high utilization rate.

[0020] The utility model is easy to take out: after the concrete is formed, the central rod is rotated to make the first nut and the second nut move in opposite directions, and the size of the controller is reduced; the concrete reserved hole device can be taken out from the prepared concrete reserved hole, and no debris is left in the hole.

[0021] 2. The outer surface of the rolled skin of the utility model is provided with notches, and the side wall of the reserved hole formed is relatively rough, which meets the roughness requirement of the side wall of the reserved hole, and the roughness can be adjusted by the sparseness of the notches to meet the roughness requirements of different concrete reserved holes.

[0022] 3. The ends of the first sheet scale strip and the second sheet scale strip of the utility model are both provided with through holes, and hooks are provided at both ends of the spring, and the two ends of the spring are respectively hung on the first sheet scale strip and the second sheet scale strip. The spring is easy to load and unload, which improves the simplicity of the device.

[0023] 4. The control ring of the utility model is fixed on the first sheet scale strip and the second sheet scale strip, and the control sheet is fixed on the spring; there are four first sheet scale strips and four second sheet scale strips, and the hinge points of the four first sheet scale strips and the first nut are rectangular, and the hinge points of the four second sheet scale strips and the second nut are rectangular, which are used to make circular reserved holes or rectangular reserved holes. It can construct circular concrete and square concrete at the same time, and has strong adaptability.

[0024] 5. The guide rail rod of the utility model passes through the first nut, the first positioning plate, the second positioning plate and the second nut in sequence, and is used for guiding and controlling the movement, thereby preventing unnecessary movement and deflection during the movement, and thus improving stability and accuracy.

[0025] In short, the utility model can change the shape and size, and can basically meet all the requirements of the on-site concrete reserved hole. In addition, the utility model can meet the requirements of different roughness in the hole, ensure the bonding strength between the newly poured concrete in the hole and the original concrete, and then ensure the quality of the project in the hole. Finally, the utility model realizes full automatic control, which can greatly improve the construction efficiency and quality of the concrete reserved hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model.

[0027] Figure 2 It is a three-dimensional structural schematic diagram of the pore-forming structure part of the utility model.

[0028] Figure 3 It is a structural schematic diagram of the pore-forming structure part of the utility model.

[0029] Figure 4 It is a schematic diagram of the utility model in the unfolded state of the roll skin.

[0030] Figure 5 It is a schematic diagram of the wrapping state of the utility model.

[0031] Figure 6 The utility model is a schematic diagram of the structure of making a circular concrete reserved hole.

[0032] Figure 7 The utility model is a schematic diagram of the structure of making square concrete reserved holes.

[0033] In the figure: 1-hollow support column 2-trip frame M1-first servo motor 4-hollow support arm 5-counterweight 6-Y guide rail M2-second servo motor 8-Y push-pull rod M3-third servo motor 10-X push-pull rod M4-fourth servo motor 12-center rod M5a-fifth a servo motor M5b-fifth b servo motor M6a-sixth a servo motor M6b-sixth b servo motor M7a-seventh a servo motor M7b-seventh b servo motor 14a-first nut 14b-second nut 15a-first sheet scale bar 15b-second sheet scale bar 16-spring 17-guide rod 18-control sheet 19-control ring 21-hook 22-hole push-pull rod 23-hole guide rail 25-thin bent iron roll P1-first position sensor P2-second position sensor P3-third position sensor P4-fourth position sensor P5-camera and optical sensor P6-sixth position sensor DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below. In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the description of the utility model, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0039] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0040] [Example]

[0041] like Figure 1-7 As shown, the fully automatic concrete pre-drilling device with variable size consists of a three-dimensional moving part, a hole-forming structure part, and an automatic control part.

[0042] The three-dimensional moving part includes: a hollow support column 1, a tripod 2, a first servo motor M1, a hollow support arm 4, a counterweight 5, a Y-direction guide rail 6, a second servo motor M2, a Y-direction push-pull rod 8, a third servo motor M3, an X-direction push-pull rod 10, and a fourth servo motor M4. Its core function is to realize the spatial three-dimensional movement and fixation of the fourth servo motor M4 through the movement of the above-mentioned components.

[0043] The hollow support column 1 contains a battery for providing power to the entire device. There is a pulley at the bottom. When it moves to a certain area, it can be locked and unlocked by the automatic control and human-machine interface part, so as to be fixed and moved. The side wall of the hollow support column is connected to the tripod 2. When the bottom of the hollow support column 1 slides and locks itself, the tripod 2 can be automatically unfolded through the automatic control and human-machine interface part to fix the hollow support column 1.

[0044] The first servo motor M1 is hinged to the hollow support column 1 at the bottom and fixed to the hollow support arm 4 at the top. The first servo motor M1 can drive the hollow support arm 4 to rotate on the hollow support column 1; at the same time, a sixth position sensor P6 is installed on the first servo motor M1 for automatic control and human-computer interaction interface.

[0045] The bottom of the hollow support arm 4 is fixedly connected to the first servo motor M1, and there is a counterweight 5 on the left side for stabilizing the hollow support arm 4 and all the structures below. According to the balance principle of a balance scale, with the center line of the hollow support arm 4 as the central axis, the right power × power arm = left resistance × resistance arm, the mass of the required counterweight 5 can be calculated; in addition, the internal space of the hollow support arm 4 is used for threading wires.

[0046] The right side of the hollow support arm 4 is connected to the Y-direction guide rail 6. The Y-direction guide rail 6 has two layers, the left and right layers, which can slide against each other. The left layer is fixed to the hollow support arm 4 by bolts, the lower part of the right layer is fixed to the Y-direction push-pull rod 8, and the right side of the right layer is fixed to the third servo motor M3. The second servo motor M2 is fixed to the hollow support arm 4, and the upper part is hinged to the Y-direction push-pull rod 8. When the second servo motor M2 rotates, it can drive the Y-direction push-pull rod 8 to move up and down, thereby driving the third servo motor M3 to move up and down.

[0047] The left side of the X-axis push-pull rod 10 is hinged to the third servo motor M3, and the right side is fixed to the fourth servo motor M4. When the third servo motor M3 rotates, the X-axis push-pull rod 10 can be moved left and right through mechanical transmission, thereby driving the fourth servo motor M4 to move left and right. The X-axis push-pull rod 10 has an opening in part for inserting the wires of the right mechanical structure, and then connected to the power supply inside the hollow support column 1 through the hollow support arm 4.

[0048] Through the above connection method, the first servo motor M1 drives the space to rotate, and the second servo motor M2 and the third servo motor M3 drive the plane to move up and down and left and right, so that the fourth servo motor M4 can be moved to any point in the spatial polar coordinates, thereby realizing the spatial three-dimensional movement and fixation of the fourth servo motor M4.

[0049] The hole forming structure includes: a fourth servo motor M4, a center rod 12, a sixth servo motor M6a and a sixth servo motor M6b that are synchronously operated, a first nut 14a, a second nut 14b, a first sheet scale bar 15a, a second sheet scale bar 15b, a spring 16, a guide rod 17, a control plate, a control ring, a fifth servo motor M5a and a fifth servo motor M5b that are synchronously operated, a hook 21, a hole forming push-pull rod 22, a hole forming guide rail 23, a seventh servo motor M7a and a seventh servo motor M7b that are synchronously operated, and a thin bending iron roll 25. Its core function is to realize round hole and square hole molds of any size through the movement of the above components.

[0050] The center rod 12 is a hollow threaded rod with wires passing through it. The wires are connected to the power supply in the hollow support column 1 through the X-axis push-pull rod 10 and the hollow support arm 4. In addition, threads are provided in some areas of the top, middle and bottom of the center rod 12 for connection with different components. It should be emphasized that, through mechanical connection, all components connected to the non-threaded areas of the center rod 12 will move with the movement of the center rod 12, so the relative distance between them and the sixth a servo motor M6a and the sixth b servo motor M6b on the center rod 12 always remains unchanged, and this distance only depends on the position at the time of initial installation; and the components connected to the threaded areas in the middle and bottom of the center rod 12 move by sliding on the guide rod 17, so their final distance from the sixth a servo motor M6a and the sixth b servo motor M6b is related to the movement distance (or rotation angle) of the center rod 12.

[0051] The circular plate fixedly connected to the fourth servo motor M4 has an internal opening for passing the center rod 12, and the fourth servo motor M4 is connected to the top thread of the center rod 12 through a mechanical gear; due to the bite action between the fourth servo motor M4, the mechanical gear and the thread, when the fourth servo motor M4 rotates clockwise (or counterclockwise), the center rod 12 can move upward (or downward) relative to the fourth servo motor M4 due to its own rotation.

[0052] The fifth a servo motor M5a and the fifth b servo motor M5b have internal openings and are fixedly connected to the non-threaded area of ​​the center rod 12. The fifth a servo motor M5a and the fifth b servo motor M5b, which operate synchronously, can move with the up and down movement of the center rod 12, and the relative positions of the two always remain unchanged; in addition, the fifth a servo motor M5a and the fifth b servo motor M5b, which operate synchronously, are two completely identical servo motors and rotate completely synchronously, which ensures that the distance that the two hole-forming push-pull rods 22 move left and right each time is the same.

[0053] The sixth a servo motor M6a and the sixth b servo motor M6b, which operate synchronously, have internal openings that are fixedly connected to the non-threaded area of ​​the center rod 12. No matter how the center rod 12 moves, the sixth a servo motor M6a and the sixth b servo motor M6b simply follow the movement, so that the relative distance between the two remains unchanged; at the same time, the sixth a servo motor M6a and the sixth b servo motor M6b are fixedly connected to a hook 21 on the left side, and the hook 21 is connected to the connection point 1 of the thin bent iron sheet roll 25; in addition, the sixth a servo motor M6a and the sixth b servo motor M6b are two completely identical servo motors, and when the sixth a servo motor M6a and the sixth b servo motor M6b rotate clockwise (or counterclockwise), the thin bent iron sheet roll 25 is pulled out (or retracted); in addition, the sixth a servo motor M6a and the sixth b servo motor M6b have other internal openings at the same position for passing the guide rod 17.

[0054] The sixth a servo motor M6a (first motor turntable) and the sixth b servo motor M6b (second motor turntable) fix the rotating blades on the center rod 12. When the motor is powered on and rotated, the rotating blades remain stationary and drive the motor itself to rotate in the opposite direction; that is, the sixth a servo motor M6a and the sixth b servo motor M6b can realize synchronous rotation around the center rod 12, while the remaining connecting parts on the hollow threaded rod, except for the thin bent iron roll 25 that rotates synchronously because the connection point 1 is fixed with the hooks on M6a and M6b, remain stationary.

[0055] The first nut 14a and the second nut 14b are provided with internal threaded holes in the center and the bottom of the center rod 12, and two openings are provided inside to connect with the guide rod 17. It should be noted that the threads in the middle and the bottom of the center rod 12 need to be specially set to ensure that when the center rod 12 rotates clockwise (or counterclockwise), the first nut 14a and the second nut 14b move along the guide rod 17 simultaneously toward (or away from) the sixth a servo motor M6a and the sixth b servo motor M6b. In addition, the first nut 14a and the second nut 14b are fixed with connecting holes for connecting with the first sheet scale bar 15a and the second sheet scale bar 15b.

[0056] There are four first sheet scale strips 15a and four second sheet scale strips 15b, a total of eight, with exactly the same size. Each sheet scale strip is provided with a mounting hole on the top and bottom, and the upper mounting hole is hinged with the first nut 14a and the second nut 14b by screw nuts, so as to ensure that each sheet scale strip has only one sliding degree of freedom. The bottom of each sheet scale strip is freely placed on the sixth a servo motor M6a (first motor turntable) and the sixth b servo motor M6b (second motor turntable). The lower mounting hole is used to suspend the spring 16, and the spring 16 is always in a retracted and tightened state when it is pulled; through the above-mentioned connection method, when the first nut 14a and the second nut 14b are simultaneously approaching (or moving away from) the sixth a servo motor M6a along the guide rod 17 When the sixth a servo motor M6a (first motor turntable) and the sixth b servo motor M6b (second motor turntable) move in the direction of the eighth servo motor M6a (first motor turntable) and the sixth b servo motor M6b (second motor turntable), the eight sheet scale bars can slide at the outer edges of the sixth a servo motor M6a (first motor turntable) and the sixth b servo motor M6b (second motor turntable), and the intersection of the sixth a servo motor M6a (first motor turntable), the sixth b servo motor M6b (second motor turntable) and the sheet scale bars at any time is recorded as the relatively fixed point A; in addition, each of the eight sheet scale bars is engraved with a scale value, which represents the diameter of the circular hole or the side length of the square hole formed in the current state; in addition, the upper and lower mounting holes of one of the upper scale bars are recorded as physical calculation points D and E, which are used for the subsequent derivation of formulas of physical principles.

[0057] In the present embodiment, there are four springs 16, and both ends of each spring 16 are suspended to the bottom openings of the two scale bars. The initial state of the spring 16 is a stretched state, with an inward retraction force, and it is always in a stretched state during the entire movement process. In this way, it can be ensured that no matter how the hole-forming structure moves, the eight scale bars are tightly stuck at the outer edges of the sixth a servo motor M6a and the sixth b servo motor M6b through the inward retraction force of the spring.

[0058] The guide rod 17 passes through the first nut 14a, the sixth a servo motor M6a, and the sixth b servo motor M6b respectively, and is finally fixed on the second nut 14b. The first nut 14a and the second nut 14b are both moved towards (or away from) the sixth a servo motor M6a and the sixth b servo motor M6b on the guide rod 17.

[0059] The eight control plates 18 are completely identical in size and are L-shaped steel plates used for internal support and size control points when forming a square hole. Every two control plates 18 are symmetrically fixed to the spring 16. The outermost side of the control plate 18 is the inscribed square control point C.

[0060] The control ring 19 is a circular ring, with two in total and exactly the same size. First, put it on the four upper and lower scale bars, measure accurately (the positions of the two control rings 19 are completely symmetrical along the axis formed by the perpendicular bisector of the center line of M6a and M6b), fix it and weld it firmly, then use a cutting machine to find a suitable position to evenly cut each control ring 19 into four sections, and remember that the outermost side of the control ring 19 is the circumscribed circle control point B; the control ring 19 is used for internal support and size control points when forming a circular hole. The reason why they are cut off from each other after being welded on the scale bar is to prevent the steel ring from becoming a constraint that affects the up and down sliding of the scale bar.

[0061] like Figure 4 , Figure 5 As shown, the internal structure of the thin bent iron sheet roll 25 is similar to the internal structure of the tape measure. In the initial state, the thin bent iron sheet roll is wound on its own steel pipe shaft and always has a prestressed force to retract and wind inward; one end (connection point 2) is fixedly connected to the hole-forming guide rail 23 through its own steel pipe shaft, which is equivalent to the inner part of the tape measure being fixed on the hole-forming guide rail 23, and the other end (connection point 1) is fixedly connected to the hook 21, which is equivalent to the outer pulling end of the tape measure being fixed on the hook 21. When the hook 21 is ( When the thin bent iron roll 25 rotates clockwise (clockwise or counterclockwise), the thin bent iron roll 25 will be pulled out (or retracted); at the same time, when the thin bent iron roll 25 is partially pulled out by the hook 21 and stops moving, due to the presence of prestressed inward retraction, if the steel pipe axis position of the thin bent iron roll 25 itself moves at this time, the thin bent iron roll 25 will continue to be pulled out (or retracted); in addition, the outer surface of the thin bent iron roll 25 has scattered uneven scratches for controlling the roughness during hole forming.

[0062] There are two hole-forming guide rails 23, which are exactly the same in size. Their connection method is similar to the Y-guide rail 6 in the three-dimensional moving part mentioned above. Each hole-forming guide rail 23 is divided into two layers, left and right. The left side is connected to the synchronously operated seventh a servo motor M7a and seventh b servo motor M7b. At the same time, the left side is fixedly connected to the steel pipe shaft of the thin bent iron sheet roll 25 through a welded steel plate. When the hole-forming guide rail 23 on the left side is pushed forward and backward by the seventh a servo motor M7a and seventh b servo motor M7b, the thin bent iron sheet roll 25 will move with it; the right side of each hole-forming guide rail 23 is fixed to the hole-forming push-pull rod 22 by bolts. The synchronously operated seventh a servo motor M7a and seventh b servo motor M7b are exactly the same in size and are fixed to the hole-forming push-pull rod 22. When the two rotate synchronously clockwise (or counterclockwise), the thin bent iron sheet roll 25 can be driven to move forward (or backward) through the hole-forming guide rail 23.

[0063] The hole-forming structure is used to complete three actions, namely "hole-forming, mold sealing, and removal". The "hole-forming" action is driven by the fourth servo motor M4 to rotate and drive the center rod 12 to move up and down, thereby driving the first nut 14a and the second nut 14b to slide on the guide rod 17, and at the same time move toward or away from the sixth a servo motor M6a and the sixth b servo motor M6b, thereby causing the position of the physical calculation point E on the scale bar to change. Since the inscribed square control point C and the circumscribed circle control point B are both components welded on the scale bar (the distance from E can always be obtained through geometric dimensions), when the position of the physical calculation point E changes, the positions of the inscribed square control point C and the circumscribed circle control point B also change, that is, the size of the circular hole (or square hole) required for hole-forming changes.

[0064] The "sealing" action is divided into two types: forming a circular hole and forming a square hole. When the hole forming action is completed, the fifth servo motor M5a and the fifth servo motor M5b that are operated synchronously drive the thin bent iron roll 25 to move left and right, the seventh servo motor M7a and the seventh servo motor M7b that are operated synchronously drive the thin bent iron roll 25 to move forward and backward, and the sixth servo motor M6a and the sixth servo motor M6b that are operated synchronously drive the thin bent iron roll 25 to rotate, so that the thin bent iron roll 25 is attached to the circumscribed circle control point B or the inscribed square control point C; if the hole to be formed is a circular hole, the sixth servo motor M7a that is operated synchronously drives the thin bent iron roll 25 to move forward and backward, and the sixth servo motor M6a and the sixth servo motor M6b that are operated synchronously drives the thin bent iron roll 25 to rotate, so that the thin bent iron roll 25 is attached to the circumscribed circle control point B or the inscribed square control point C. The servo motor M6a and the sixth servo motor M6b rotate one circle, and the thin bent iron sheet 25 is rolled around the circumscribed circle control point B for one circle, and the round hole sealing is completed. If the hole to be completed is a square hole, the synchronously operated sixth servo motor M6a and the sixth servo motor M6b are first rotated 1 / 4 circle, and then the synchronously operated seventh servo motor M7a and the seventh servo motor M7b and the synchronously operated sixth servo motor M6a and the sixth servo motor M6b are adjusted to make the thin bent iron sheet roll 25 return to the square control point C again (this is because: for a circle with a radius of R, the side length of the inscribed square should be The synchronously operated sixth servo motor M6a and sixth servo motor M6b rotate 1 / 4 of a circle, which is equivalent to pulling the thin bent iron roll longer. Therefore, when the square corresponds to this place, the thin bent iron sheet should be retracted The process is repeated four times, and the synchronously operated 6th servo motor M6a and 6th servo motor M6b rotate one circle, and the thin bent iron sheet roll can be wound around the inscribed square control point C for one circle, that is, the square hole sealing is completed. The "removal" action is: after the concrete pouring is completed and the initial setting is completed, the "hole forming" action is reversed to reduce the size of the hole forming structure part, and then the "sealing" action is reversed to retract the thin bent iron sheet roll back into the steel pipe shaft.

[0065] The automatic control part is composed of the first to fourth position sensors P1~P4, camera and optical sensor P5, sixth position sensor P6, first to seventh servo motors M1~M7a, M7b, motion control card, host computer, and operation interface. Its core function is to issue various instructions through the operation interface of the host computer, which are converted into machine language to control the motion commands of the servo motors M1~M7a, M7b after being compiled by the motion control card, and the motion conditions are fed back to the motion control card through the position sensors P1~P4, camera and optical sensor P5, and position sensor P6 for reverse compilation, and then transmitted back to the operation interface of the host computer.

[0066] The first position sensor P1 and the sixth position sensor P6 are used to measure and record the relative position relationship between the center rod 12 and the hollow support column 1 in real time, and can verify whether the calculated position is consistent with the actual position. Assuming that the spatial coordinates of a point on the central axis of the hollow support column 1 are (0, 0, 0), after the servo motors M1 to M3 move, the spatial coordinates of the central axis of the servo motor M4 are calculated to be (x, y, z). Due to the inevitable errors in mechanical connection, manufacturing and motor rotation, the presence of position sensors P1 and P6 can reduce this error and convert the actual coordinates of the central axis of the servo motor M4 (x 1 ,y 1 , z 1 ) is recorded and fed back to the system. By modifying the calibration coefficients of the servo motors M1 to M3 in the operation interface, the calculated coordinates (x, y, z) can be made equal to the actual coordinates (x 1 ,y 1 , z 1 The position sensor P2 is used to measure and record the distance of the thin bent iron sheet roll 25 moving forward and backward in real time, and compare the actual result with the calculated result to calibrate the servo motors M7a and M7b.

[0067] The third position sensor P3 and the fourth position sensor P4 are used to measure and record in real time the distance between the thin bent iron roll and the circumscribed circle control point B and the inscribed square control point C, that is, the distance the thin bent iron roll moves left and right and the rotation angle of the synchronously operated servo motors M6a and M6b, and then used to calibrate the servo motors M5a, M5b, M6a, and M6b. The camera and optical sensor P5 are used to assist in the centering operation of the center rod and the reserved hole on site, and can observe the situation in the hole below. The host computer can also be replaced by mobile phone software and wireless network. It only needs to write the operation interface into software and implant it into the mobile phone, and then use the wireless network to connect with the motion control card to replace the host computer, making on-site operation more convenient.

[0068] The use of a variable-size fully automatic concrete hole making machine to make circular and square concrete holes specifically includes the following steps:

[0069] 1) The host computer controls the tripod motor to rotate, unfolds the tripod 2, and fixes the device on the fixed surface through the tripod 2;

[0070] 2) The host computer controls the first to third servo motors to rotate, so that the center rod 12 moves in three-dimensional space, and cooperates with the camera and optical sensor P5 to move and fix the center rod 12 just above the position of the reserved hole required on site, so that the center rod 12 is centered;

[0071] 3) The host computer controls the fourth servo motor M4 to drive the center rod 12 to rotate, so that point B or point C reaches the set position; the host computer controls the fifth a, fifth b, seventh a, and seventh b servo motors to rotate, driving the thin bent iron sheet to move; the host computer controls the sixth a servo motor and the sixth b servo motor to rotate, driving the thin bent iron sheet to wrap around the controller;

[0072] 4) The host computer controls the second servo motor M2 to drive the center rod 12 to move downward, so that the center rod 12 moves and is fixed at the position of the reserved hole required on site;

[0073] 5) Cast concrete on site. After the concrete is initially set, the host computer controls the fourth servo motor M4 to drive the central rod 12 to rotate, so that the first nut 14a and the second nut 14b move in opposite directions, reducing the size of the controller; at the same time, the host computer controls the sixth servo motor a and the sixth servo motor b to rotate, so that the thin bent iron sheet returns to its original position;

[0074] 6) Finally, the host computer controls the first to third servo motors to rotate, so that the portion of the entire reserved hole device that penetrates into the hole leaves the reserved hole, and the host computer controls the tripod motor to rotate, retracts the tripod 2, and takes away the entire reserved hole device.

[0075] The utility model can change the shape and size, and can basically meet all the requirements of the reserved holes for concrete on site, and has wide applicability. In addition, the utility model can meet the requirements of different roughness in the hole, ensure the bonding strength between the newly poured concrete in the hole and the original concrete, and then ensure the quality of the project in the hole. In addition, the utility model is fully automatically controlled, saves labor costs, is economical, and adapts to the development direction of the construction site, that is, the "intelligent construction" facing the future. Finally, the utility model is simple to operate and easy to use.

[0076] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Fully automatic concrete hole pre-drill with variable size, characterized by: It includes a three-dimensional motion device, a center rod, a first nut, a second nut, a first motor turntable, a second motor turntable, a first sheet scale bar, a second sheet scale bar, a skin rolling moving device, a controller and a skin rolling; The three-dimensional motion device supports the central rod, drives the central rod to move three-dimensionally, and drives the central rod to rotate around its own axis; The first nut and the second nut are threadedly connected to the center rod, and the thread rotation directions are opposite; The first motor turntable and the second motor turntable are installed on the central rod and are located between the first nut and the second nut; The first sheet scale strip and the second sheet scale strip are respectively hinged on the first nut and the second nut, respectively placed on the first motor turntable and the second motor turntable, and the first sheet scale strip and the second sheet scale strip are connected by a spring; The roll skin moving device is installed on the central rod, the roll skin is installed on the roll skin moving device, the fifth a, fifth b, seventh a, and seventh b servo motors of the roll skin moving device drive the roll skin to move, the sixth a servo motor of the first motor turntable and the sixth b servo motor of the second motor turntable are connected to the roll skin, and drive the roll skin to be wound on the controller; The controller is fixedly connected to the first sheet-like scale bar, the second sheet-like scale bar or the spring.

2. The variable-size fully automatic concrete hole pre-drill according to claim 1, characterized in that: The three-dimensional motion device includes a support column, a tripod, a first servo motor, a support arm, a counterweight, a Y-direction guide rail, a second servo motor, a Y-direction push-pull rod, a third servo motor, an X-direction push-pull rod and a fourth servo motor; The support column is fixed on the fixed surface through a tripod, the first servo motor is installed on the support column, the support arm is installed on the first servo motor, and the first servo motor drives the support arm to rotate; The second servo motor and the Y guide rail are installed on the support arm, and the second servo motor drives the third servo motor to move along the Y guide rail through the Y push-pull rod; The third servo motor drives the fourth servo motor to move in the X direction via the X-direction push-pull rod.

3. The variable-size fully automatic concrete hole pre-drill according to claim 1, characterized in that: It also includes a guide rail rod, which passes through the first nut, the first motor turntable, the second motor turntable and the second nut in sequence for guiding.

4. The variable-size fully automatic concrete hole pre-drill according to claim 1, characterized in that: The controller comprises a control ring and a control sheet. The control ring is fixedly connected to the first sheet-shaped scale strip and the second sheet-shaped scale strip, and the control sheet is fixedly connected to the spring.

5. The variable-size fully automatic concrete hole pre-drill according to claim 1, characterized in that: The ends of the first sheet-like scale strip and the second sheet-like scale strip are both provided with through holes, and hooks are provided at both ends of the spring, and the two ends of the spring are respectively hung on the first sheet-like scale strip and the second sheet-like scale strip.

6. The variable-size fully automatic concrete hole pre-drill according to claim 1, characterized in that: The roll skin is made of a thin iron sheet with a thickness of less than 0.5 mm, and is provided with notches on the outer surface, forming a tape measure structure.

7. The variable-size fully automatic concrete hole pre-drill according to claim 1, characterized in that: The skin rolling moving device includes the fifth a, fifth b, sixth a, sixth b, seventh a, and seventh b servo motors; and also includes a hole-forming push-pull rod and a hole-forming guide rail; The fifth a, fifth b, sixth a and sixth b servo motors are installed on the central rod, the hole-forming push-pull rods are connected to the fifth a and fifth b servo motors, and the hole-forming guide rails and the seventh a and seventh b servo motors are installed on the hole-forming push-pull rods.

8. The variable-size fully automatic concrete hole pre-drill according to claim 1, characterized in that: It also includes a control system, which includes a host computer, a human-machine interface, first to fourth position sensors, a camera and an optical sensor, a sixth position sensor, a tripod motor and a motion control card; The host computer, the human-machine interface, the first to fourth position sensors, the camera and the optical sensor, the sixth position sensor, the motion control card, the first to seventh b servo motors, and the tripod motor are electrically connected.

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