Laser positioning detection device for steel corbels

Abstract

The present invention relates to the field of positioning technology for construction, and in particular to a laser positioning detection device for a steel corbel. The laser positioning detection device for a steel corbel comprises a fixing device, a height display unit and a lifting device, wherein the fixing device is used to connect with a beam, the lifting device is installed on the fixing device, a laser irradiator is installed on the lifting device, and the lifting device is used to drive the laser irradiator to move relative to the height display unit. The present invention solves the technical problem of low precision in manually measuring bolt holes on a steel corbel, and achieves the technical effect of improving the precision of measurement.

Description

Technical Field

[0001] The invention relates to the technical field of positioning in building construction, and in particular to a laser positioning detection device for a steel corbel. Background Art

[0002] In some large factories, vertical supports must be installed to ensure the lateral stability of the roof truss and transfer longitudinal horizontal forces and longitudinal wind loads to the roof truss pillars to further improve the stability of the factory building.

[0003] The vertical support bracket needs to fall on the steel beam and be welded to the steel beam. Most vertical supports require friction high-strength bolts, and accurate positioning of the bolt holes is a necessary condition for installation. Most of the connecting plates on the steel brackets of vertical supports need to be bent into arcs, but due to mechanical equipment, it is difficult to accurately cut the material and it is difficult to master the bending adjustment value in the bending of the steel plate, resulting in a few millimeters of error in the steel bracket.

[0004] During the installation of the steel bracket, multiple people need to coordinate with each other to draw the size. One person holds a ruler at the end of the steel beam, and the other person holds a ruler at the bolt hole position and uses a square to locate the hole. Due to human factors, it is impossible to ensure that everyone can accurately locate, which will cause errors. Too many accumulated errors will cause inaccurate positioning, and even make it impossible to install on site, and fail to meet the requirements of the plant design. Summary of the invention

[0005] The first aspect of the present invention aims to provide a laser positioning detection device for a steel corbel to solve the technical problem of low precision in manual measurement of bolt holes on a steel corbel provided by the related art.

[0006] The invention of this aspect provides a laser positioning detection device for a steel corbel, comprising a fixing device, a height display unit and a lifting device, wherein the fixing device is used to connect with a beam, the lifting device is installed on the fixing device, and a laser irradiator is installed on the lifting device.

[0007] The beneficial effects of the invention of this aspect are:

[0008] The present invention uses a fixing device to install the laser positioning detection device on a beam, and uses a lifting device to install a laser irradiator. The lifting device can be used to realize the lifting and lowering of the laser irradiator. After lifting and lowering, the positioning can be completed. The laser irradiator can have a certain position relative to the height display part, and the height of the laser irradiator can be read through the height display part to determine the position of the bolt hole. Not only does it reduce the number of operators, but also improves the measurement accuracy.

[0009] In an optional embodiment, the lifting device includes a lifting drive device and a lifting transmission device, and the lifting transmission device is used to convert the power of the lifting drive device into movement of the laser irradiator.

[0010] In an optional embodiment, the lifting drive device includes a lifting input device, the lifting transmission device includes a screw feeding device, the screw feeding device includes a lifting screw mounted on the fixing device and a lifting nut spirally connected to the lifting screw, and the lifting nut is transmission-connected to the lifting input device.

[0011] In an optional embodiment, the lifting input device includes a lifting worm, the lifting transmission device includes a lifting worm wheel, the lifting worm is meshed with the lifting worm wheel, and the lifting worm wheel is fixedly connected to the lifting nut.

[0012] In an optional embodiment, the lifting device includes a lifting frame, the laser irradiator is installed on the lifting frame, and the lifting transmission device is used to drive the lifting frame to rise or fall.

[0013] In an optional embodiment, the lifting device includes a guiding device, which includes a guide rod and a guide sleeve, the guide sleeve is connected to the guide rod for linear movement relative to the guide rod, and the lifting frame is also connected to one of the guide sleeve or the guide rod, and the guide rod is parallel to the lifting screw.

[0014] In an optional embodiment, the guide rod is provided with scale markings.

[0015] In an optional embodiment, the fixing device includes a fixing base and a clamping device, the clamping device is mounted on the fixing base, and the clamping device is used to clamp the beam together with the fixing base.

[0016] In an optional embodiment, the clamping device includes a clamping member and a clamping drive assembly, the clamping member is transmission-connected to the clamping drive assembly, and the clamping drive assembly is used to drive the clamping member to move relatively away from or closer to the fixed base.

[0017] In an optional embodiment, the clamping drive assembly includes a clamping threaded rod and a clamping nut, the clamping threaded rod passes through the fixed base and is screwed to the clamping nut, and the clamping threaded rod is fixedly connected to the clamping member. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic structural diagram of a laser positioning detection device for a steel corbel provided in Embodiment 1 of the present invention;

[0020] Figure 2 is a schematic cross-sectional view of the guide rod in the first embodiment;

[0021] Figure 3 It is a structural schematic diagram of the first embodiment when applied to the measurement of threaded holes on a steel corbel.

[0022] Icons: 11-fixed base; 12-clamping threaded rod; 13-clamping nut; 14-clamping piece; 21-lifting screw; 22-lifting worm; 23-lifting worm wheel; 24-lifting frame; 25-guide sleeve; 26-guide rod; 31-laser irradiator; 40-steel corbel; 50-beam. DETAILED DESCRIPTION

[0023] 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 below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of 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.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invented product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. The terms "first category", "second category", "third category", etc. are only used to distinguish, and the unified description of the same type of components or features means that the number of the components or features can be multiple, but it does not deny that the number of the components or features can be one.

[0027] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0030] like Figure 1-Figure 3 As shown, the laser positioning detection device for the steel corbel provided in this embodiment includes a fixing device, a height display part and a lifting device. The fixing device is used to be connected to the beam 50. The lifting device is installed on the fixing device. A laser irradiator 31 is installed on the lifting device. The lifting device is used to drive the laser irradiator 31 to move relative to the height display part.

[0031] The laser positioning detection device is mounted on the beam 50 by a fixing device, and the laser irradiator 31 is mounted by a lifting device. The lifting device can be used to lift the laser irradiator 31. After lifting, the positioning can be completed. The laser irradiator 31 can have a certain position relative to the height display part. The height of the laser irradiator 31 can be read through the height display part to determine the position of the bolt hole. This not only reduces the number of operators, but also improves the measurement accuracy.

[0032] In an optional embodiment, the lifting device includes a lifting drive device and a lifting transmission device, and the lifting transmission device is used to convert the power of the lifting drive device into the movement of the laser irradiator 31.

[0033] By setting up a lifting transmission device, the externally applied force can be converted into the lifting and lowering movement of the laser irradiator 31, and the operator does not need to directly move the laser irradiator 31 along the moving direction of the laser irradiator 31. On the one hand, the moving speed of the laser irradiator 31 can be reduced by the transmission device, which is conducive to timely controlling the stopping of the movement of the laser irradiator 31 and improving the positioning accuracy. On the other hand, the workers can control the lifting and lowering of the laser irradiator 31 with less force, thereby reducing the operating burden of the workers.

[0034] In an optional embodiment, the lifting drive device includes a lifting input device, the lifting transmission device includes a screw feed device, the screw feed device includes a lifting screw 21 installed on a fixing device and a lifting nut screwed to the lifting screw 21, and the lifting nut is in driving connection with the lifting input device. Specifically, in this embodiment, the lifting screw 21 is fixedly installed on the fixing device, and when the lifting nut rotates on the lifting screw 21, the lifting nut and the components fixedly connected to the lifting nut and the components supported by the lifting nut can be lifted and lowered.

[0035] The use of a spiral feed device can not only convert the rotational motion of the lifting nut into linear motion, which is beneficial for the lifting input device to input rotational power to the lifting nut, but also is beneficial for converting each large-scale motion input into a small height change of the lifting nut, which is beneficial for improving the accuracy of the motion and is beneficial for use on the construction site. In addition, the use of a spiral transmission method of the lifting nut and the lifting screw 21 can also achieve self-locking, that is, when the nut is rotated into place, the lifting input device is loosened and the lifting nut will not fall automatically, thereby ensuring the safety and reliability of the entire laser positioning device.

[0036] In an optional embodiment, the lifting input device includes a lifting worm 22, the lifting transmission device includes a lifting worm wheel 23, the lifting worm 22 is meshed with the lifting worm wheel 23, and the lifting worm wheel 23 is fixedly connected to the lifting nut.

[0037] By adopting the meshing of the lifting worm 22 and the lifting worm wheel 23, the rotation of the lifting worm 22 can be converted into the rotation of the lifting worm wheel 23, which significantly reduces the rotation speed of the lifting worm wheel 23 fixedly connected to the lifting nut, and at the same time can also reduce the torque input to the lifting worm 22, which is conducive to the direct manual operation. In addition, when the worm angle of the lifting worm 22 is a self-locking angle, the meshing of the lifting worm wheel 23 and the lifting worm 22 can also be used to achieve the self-locking of the worm wheel, so that the lifting nut can stay in place stably when it is lifted and lowered, and will not fall off.

[0038] Specifically, in the present embodiment, the rotation input of the lifting worm 22 can be achieved by providing a handwheel at one end of the lifting worm 22, or by providing a radially arranged hole on the lifting worm 22, or by directly holding the lifting worm 22 by hand to rotate it when the lifting worm 22 is not too thick and the torque applied to the lifting worm 22 is not too large. Of course, when the torque applied to the lifting worm 22 is large, the end of the lifting worm 22 can be configured into a regular hexagon or square, and a wrench can be used to drive the rotation of the lifting worm 22.

[0039] In addition, in this embodiment, the lifting worm 22 is axially fixed, circumferentially rotated, and radially fixedly installed in a lifting seat, and the lifting worm wheel 23 is also axially fixed, circumferentially rotated, and radially fixedly installed in the lifting seat. Since only the components directly related to the transmission are drawn in the figure, the lifting seat is not shown. Moreover, since in this embodiment, the lifting worm wheel 23 and the lifting nut are actually the same component, it is just that the internal thread is processed at the internal part of the lifting worm wheel 23, so that the outside of a certain component has the function of a worm wheel, and the inside has the function of a nut. Therefore, only the lifting worm wheel 23 is drawn in the figure, and the lifting nut is not drawn.

[0040] In an optional embodiment, the lifting device includes a lifting frame 24, the lifting transmission device is used to drive the lifting frame 24 to rise or fall, and the laser irradiator 31 is installed on the lifting frame 24. Specifically, in this embodiment, the lifting frame 24 is placed on the lifting nut, and the lifting frame 24 can rotate relative to the lifting nut. A part of the lifting frame 24 is mounted on the lifting screw 21 and can slide relative to the lifting screw 21. Since the weight of the lifting frame 24 and the laser irradiator 31 on the lifting frame 24 is not very large, and the laser positioning detection device in this embodiment is not in a 24-hour uninterrupted working system, but is only used when needed, the influence of wear between the bottom surface of the lifting frame 24 and the lifting nut can be ignored.

[0041] By setting the lifting frame 24, not only the laser irradiator 31 can be installed, but also the guide sleeve 25 can be installed through the lifting frame 24, so as to limit the lifting frame 24 from rotation. In addition, when a guide rod 26 with scale marks is provided, the laser irradiator 31 can be used to irradiate the optical fiber to the scale mark position of the guide rod 26, so as to facilitate reading the height data and better control the height.

[0042] In an optional embodiment, the lifting device includes a guide device, which includes a guide rod 26 and a guide sleeve 25. The guide sleeve 25 is linearly movable relative to the guide rod 26. The lifting frame 24 is also connected to the guide sleeve 25. The guide rod 26 is parallel to the lifting screw 21. Specifically, in this embodiment, the guide sleeve 25 is slidably set on the guide rod 26. In fact, the connection between the two can also be achieved by, for example, rolling a plurality of rollers. Specifically, the shape of the cross section of the guide rod 26 is as follows: Figure 2 As shown, it can be a roughly dumbbell shape, except that the dumbbell head is semicircular, and the edge of the semicircle diameter faces the dumbbell handle.

[0043] By providing a guide sleeve 25 which is linearly connected to the guide rod 26, the lifting frame 24 can be fixed in the horizontal plane by two rod-shaped objects, the guide rod 26 and the lifting screw 21, thereby limiting the rotation and movement of the lifting frame 24 in the plane, so that the laser irradiator 31 will not deviate due to the rotation of the worm gear.

[0044] In an optional embodiment, a scale mark is provided on the guide rod 26. The scale mark is the height display unit. It should be noted that the height display unit of the present application is not a relatively independent component that can be disassembled from other components, but can be a scale line provided on the guide rod 26. Specifically, the scale line can be provided on the guide rod 26. Figure 2 The side of the dumbbell handle of the guide rod 26 with a dumbbell-shaped cross-section is shown.

[0045] By providing scale marks on the guide rod 26 , the height at which the lifting frame 24 operates can be easily read.

[0046] In an optional embodiment, the fixing device includes a fixing base 11 and a clamping device, wherein the clamping device is mounted on the fixing base 11 , and the clamping device is used to clamp the beam 50 together with the fixing base 11 .

[0047] By setting up a fixed base 11, and utilizing the fixed base 11 and the clamping device to clamp the beam 50 together, the fixed base 11 is directly in contact with the beam 50, and the fixed base 11 is directly utilized to bear the supporting force of the beam 50. This can provide a reliable and firm installation foundation for the laser positioning detection device of the steel corbel, and prevent the lifting device on the fixed base 11 from shaking and affecting the positioning accuracy.

[0048] Specifically, in this embodiment, the fixed base 11 can be made of 8# angle steel.

[0049] In an optional embodiment, the clamping device includes a clamping member 14 and a clamping drive assembly, the clamping member 14 is in transmission connection with the clamping drive assembly, and the clamping drive assembly is used to drive the clamping member 14 to move relatively away from or close to the fixed base 11. Specifically, in this embodiment, the clamping member 14 can be made of 2# angle steel.

[0050] By providing a clamping drive assembly to drive the clamping member 14 to move relatively away from or close to the fixed base 11, the surface of the clamping member 14 facing the clamped portion of the beam 50 and the surface of the fixed base 11 facing the clamped portion of the beam 50 can form different distances. Thus, the laser positioning detection device can be adapted to beams 50 of different plate thicknesses, thereby expanding the scope of application of the laser positioning detection device.

[0051] In an optional embodiment, the clamping drive assembly includes a clamping threaded rod 12 and a clamping nut 13. The clamping threaded rod 12 passes through the fixed base 11 and is screwed to the clamping nut 13. The clamping threaded rod 12 is fixedly connected to a clamping member 14. Specifically, the upper portion of the clamping threaded rod 12 is a threaded portion, and the lower portion is a smooth rod portion. The diameter of the smooth rod portion is greater than the diameter of the threaded portion. The clamping member is provided with a through hole, and the threaded portion of the clamping threaded rod 12 passes through the through hole. The clamping member 14 beside the through hole is placed on the top of the smooth rod portion. When the clamping threaded rod 12 rises, the clamping member 14 can rise accordingly, and when the clamping threaded rod 12 falls, the clamping member 14 can also fall accordingly.

[0052] By setting the clamping threaded rod 12 and the clamping nut 13, the clamping nut 13 is set on the fixed base 11, and the position height of the clamping threaded rod 12 can be adjusted by utilizing the relative rotation of the clamping nut 13 and the clamping threaded rod 12, thereby adjusting the position height of the clamping member 14, so as to change the relative distance between the surface of the clamped part of the beam 50 facing the clamped part of the clamping member 14 and the surface of the clamped part of the fixed base 11 facing the beam 50, thereby adapting to beams 50 with different plate thicknesses.

[0053] The method of using the laser positioning detection device of the steel bracket of this embodiment is as follows:

[0054] When the steel corbel 40 is located on the flange plate of the H-shaped steel beam 50: 1. The riveter needs to mark the size on the beam 50 at one time; 2. The laser positioning detection device of the steel corbel is placed to the specified size position and fixed; 3. The clamping nut 13 is adjusted to control the position of the clamping part 14, so that the clamping part 14 is tightly attached to the lower surface of the upper flange of the beam 50 to ensure the horizontality and verticality of the measuring instrument; 4. The lifting worm 22 is rotated to move the height of the laser irradiator 31 so that the laser irradiator 31 reaches the required position, so that the position of the bolt hole can be accurately located.

[0055] The steel corbel 40 is located on the web of the H-shaped steel beam 50: 1. The riveter needs to mark the size on the wing plate of the beam 50 at one time; 2. Place the clamp 14 of the laser positioning detection device of the steel corbel on the other side of the base and clamp it with bolts; 3. Adjust the clamp nut 13 to control the position of the clamp 14 so that the clamp 14 fits tightly with the lower surface of the flange plate of the beam 50 to ensure the horizontality and verticality of the measuring instrument, rotate the lifting worm 22, move the height of the laser irradiator 31, and make the laser irradiator 31 reach the required position, so as to accurately locate the position of the bolt hole.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. For example:

[0057] Variant 1: In Embodiment 1, a combination of a lifting nut and a lifting screw is used to realize a spiral connection, and a combination of a lifting worm wheel and a lifting worm is used to realize a worm gear connection, and both can realize self-locking. In fact, one of the two connections can be set to a non-self-locking angle, that is, a non-self-locking spiral angle or a non-self-locking worm angle, such as a self-locking spiral connection + a non-self-locking worm gear, or a non-self-locking spiral + a self-locking worm gear. The use of a non-self-locking angle can improve transmission efficiency and reduce useless work caused by friction.

[0058] Variant 2: In Embodiment 1, a worm gear transmission is used to drive the lifting nut to rotate. In fact, other methods can be used to drive the lifting nut to rotate. For example, the outer surface of the lifting nut can be set to a regular hexagon or a square, and a wrench can be used to drive the lifting rotation; or a hand wheel can be fixedly connected to the outer surface of the lifting nut, and the rotation of the hand wheel can be used to drive the nut to rotate; or, a plurality of radial holes can be set on the outside of the lifting nut, and radial rods can be used to be alternately inserted into the radial holes to push the lifting nut to rotate, or when the outer size of the nut is not too large and the required torque is not large, the nut can be directly driven to rotate by hand.

[0059] Variant three: In embodiment one, the lifting frame is installed on the guide sleeve. In fact, it can also be installed on the guide rod. The guide rod and the lifting frame move up and down together, and the guide sleeve is fixed. Of course, this is only feasible in theory. In actual production, if the guide rod is movable, then the guide rod needs a certain amount of space for movement. If the space required for the guide rod is too large, the H-shaped steel beam may not be able to provide such a large space for movement, and the lifting of the lifting frame will be restricted.

[0060] Variant 4: In the first embodiment, a height display unit is provided on the guide rod. In fact, the height display unit may be provided separately, for example, a vertically placed ruler may be provided on the fixing device, and a portion on the lifting frame may correspond to the scale on the ruler.

[0061] However, these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A laser positioning detection device for a steel corbel, characterized in that: It comprises a fixing device, a height display part and a lifting device, the fixing device is used to be connected to a beam (50), the lifting device is installed on the fixing device, a laser irradiator (31) is installed on the lifting device, and the lifting device is used to drive the laser irradiator (31) to move relative to the height display part; The lifting device comprises a lifting drive device, a lifting transmission device, a lifting frame (24) and a guide device, wherein the lifting transmission device is used to convert the power of the lifting drive device into movement of the laser irradiator (31); The lifting transmission device comprises a screw feeding device, the screw feeding device comprises a lifting screw (21) mounted on the fixing device and a lifting nut screw-connected to the lifting screw (21), the lifting nut being drivingly connected to the lifting input device; The laser irradiator (31) is mounted on the lifting frame (24), and the lifting transmission device is used to drive the lifting frame (24) to rise or fall; The guide device comprises a guide rod (26) and a guide sleeve (25), the guide sleeve (25) is linearly movable relative to the guide rod (26), the lifting frame (24) is also connected to one of the guide sleeve (25) or the guide rod (26), and the guide rod (26) is parallel to the lifting screw (21); The guide rod (26) is provided with a scale mark; The fixing device comprises a fixing base (11) and a clamping device, wherein the clamping device is mounted on the fixing base (11), and the clamping device is used to clamp the beam (50) together with the fixing base (11).

2. The laser positioning detection device for steel corbels according to claim 1, characterized in that: The lifting input device comprises a lifting worm (22), the lifting transmission device comprises a lifting worm wheel (23), the lifting worm (22) is meshed with the lifting worm wheel (23), and the lifting worm wheel (23) is fixedly connected to the lifting nut.

3. The laser positioning detection device for steel corbels according to claim 1, characterized in that: The clamping device comprises a clamping member (14) and a clamping drive assembly, the clamping member (14) being in transmission connection with the clamping drive assembly, and the clamping drive assembly being used to drive the clamping member (14) and the fixed base (11) to move away from or closer to each other.

4. The laser positioning detection device for steel corbels according to claim 3 is characterized in that: The clamping drive assembly comprises a clamping threaded rod (12) and a clamping nut (13); the clamping threaded rod (12) passes through the fixed base (11) and is screwed to the clamping nut (13); and the clamping threaded rod (12) is fixedly connected to the clamping member (14).

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