Device for detecting quality of cold-formed section steel

Abstract

The utility model discloses a device for detecting the quality of cold-formed section steel, which comprises stringing brackets arranged at the two ends of the cold-formed section steel, a stay wire for detection is arranged between the two stringing brackets, each stringing bracket comprises two side plates which are arranged in parallel, a cross beam plate is arranged between the two side plates, and the cross beam plate is arranged between the two side plates. A lateral abutting screw is arranged on one side edge plate on the lower side of the cross beam plate, swing arms are arranged on the two side edge plates on the upper side of the cross beam plate, a positioning column is arranged between the extending ends of the two swing arms, a first adjusting stress shaft is further arranged between the two swing arms, a second adjusting stress shaft is further arranged between the two side edge plates, and the first adjusting stress shaft is connected with the second adjusting stress shaft. The first adjusting stress shaft and the second adjusting stress shaft are each provided with a nut part, an adjusting screw is arranged between the two nut parts, the adjusting screw is used for driving the two nut parts to be close to or away from each other, and the positioning column is used for pressing the stay wire on the surface of the cold-formed section steel. The device can be operated by a single person, and can also keep the straight state of the stay wire, so that the detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cold-bent steel detection, in particular to a device for cold-bent steel quality detection. Background Art

[0002] The advantages of cold-formed steel mainly include economical and reasonable cross-sections, a wide variety of varieties, and applications in the construction, railway vehicle and other industries. The economical and reasonable cross-sections of cold-formed steel mean that its design structure can meet specific needs while achieving effective use of materials and reducing costs. In addition, there are many varieties of cold-formed steel that can meet the application needs of different fields. In the construction industry, cold-formed steel is widely used in building structures due to its excellent performance. In the railway vehicle industry, cold-formed steel is also widely used, including use on aerial lifting platform vehicles.

[0003] In some use environments, there are requirements for the straightness of cold-bent steel. The existing method is to manually pull a wire at both ends of the cold-bent steel, and then use a feeler gauge to measure. The two ends need to be fixed. In order to ensure that the wire can stably fit the surface of the cold-bent steel, it is often coordinated by multiple people, specifically two people press at both ends in real time, and then a third person uses a feeler gauge to measure. This detection method is inefficient, and the wire pulling is manually controlled, and the tightness is difficult to maintain, which greatly affects the measurement quality and is labor-intensive.

[0004] Some also use laser rangefinders and other equipment to assist in measurement, but the purchase cost is high, and wire pulling is still required for measurement during repair and maintenance. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a device for quality inspection of cold-bent steel, which can be operated by a single person and can also keep the tension wire in a straight state, thereby improving the accuracy of inspection.

[0006] In order to solve the above technical problems, the utility model provides a device for quality inspection of cold-bent steel, including a wire rack arranged at both ends of the cold-bent steel, a wire for inspection is arranged between the two wire racks, the wire rack includes two side plates arranged in parallel, a cross beam plate is arranged between the two side plates, one of the side plates on the lower side of the cross beam plate is provided with a lateral tightening screw, swing arms are arranged on the two side plates on the upper side of the cross beam plate, a positioning column is arranged between the protruding ends of the two swing arms, a first adjustment force axis is also arranged between the two swing arms, a second adjustment force axis is also arranged between the two side plates, nut parts are arranged on the first adjustment force axis and the second adjustment force axis, an adjusting screw is arranged between the two nut parts, the adjusting screw is used to drive the two nut parts to move closer or farther away, and the positioning column is used to press the wire against the surface of the cold-bent steel.

[0007] Furthermore, an oblique rear hook plate is provided on one side of the cross beam plate along the pulling direction of the tension wire, an acute-angle hook portion is formed between the bottom surface of the cross beam plate and the upper surface of the oblique rear hook plate, and a positioning bolt is provided on the oblique rear hook plate.

[0008] Furthermore, a connecting plate is provided between the tops of the two side panels.

[0009] Furthermore, a force-bearing plate is provided at the end of the lateral abutting screw, and the lateral abutting screw abuts against the surface of the cold-bent steel through the force-bearing plate.

[0010] Furthermore, an upper fixed shaft is provided between the two side plates, one end of the swing arm is sleeved on the end of the upper fixed shaft, and the upper fixed shaft is used for tying the pull wire.

[0011] Furthermore, a plurality of limiting ring grooves are arranged on the surface of the upper fixed shaft.

[0012] Furthermore, a lower limit protrusion is provided on the end of the swing arm located at one end of the positioning column, and the two lower limit protrusions of the two swing arms are used to limit the moving space of the pull wire along the axial direction of the positioning column.

[0013] Furthermore, the threaded portion of the adjusting screw is configured as a positive and negative thread structure.

[0014] Beneficial effects of the utility model:

[0015] The wire is clamped by two wire brackets and the two ends are attached to the two ends of the cold-bent steel surface. There is no need for manual real-time pressing and fixing, and it can be operated by one person.

[0016] The lateral tightening screws can fix the frame formed by the two side plates and the cross beam plate at the end of the cold-formed steel, and the operation is simple.

[0017] The two swing arms can drive the positioning column to press down, squeeze the pull wire onto the surface of the cold-bent steel, and through the cooperation of the two nut parts and the adjusting screw, the position of the positioning column can be adjusted by simply rotating the adjusting screw, with good fixing effect and convenient operation.

[0018] The setting of the oblique rear hook plate can limit the cold-formed steel in the length direction and on one side of the cold-formed steel, and in the direction perpendicular to the surface. The lateral tightening screw can limit the cold-formed steel in the width direction, thereby achieving installation and fixation in the X, Y, and Z directions. The overall fixing effect is good, stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the wiring bracket of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the utility model in which the cable rack is installed on the cold-bent steel;

[0022] Figure 4 It is a structural schematic diagram of the utility model when the wire rack is released and the wire is pulled;

[0023] Figure 5 The utility model is a schematic structural diagram of the wire rack when the wire is compressed and pulled. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0025] Reference Figures 1 to 4 As shown, an embodiment of the device for quality inspection of cold-bent steel of the utility model comprises a wire rack 1 arranged at both ends of the cold-bent steel 111, a wire 2 for inspection is arranged between the two wire racks, the wire rack comprises two side plates 3 arranged in parallel, a cross beam plate 4 is arranged between the two side plates, one of the side plates on the lower side of the cross beam plate is provided with a lateral tightening screw 5, swing arms 6 are arranged on the two side plates on the upper side of the cross beam plate, a positioning column 7 is arranged between the protruding ends of the two swing arms, a first adjustment force shaft 8 is also arranged between the two swing arms, a second adjustment force shaft 9 is also arranged between the two side plates, nut portions 10 are arranged on the first adjustment force shaft and the second adjustment force shaft, an adjusting screw 11 is arranged between the two nut portions, the adjusting screw is used to drive the two nut portions to move closer or farther away, and the positioning column is used to press the wire against the surface of the cold-bent steel.

[0026] The above-mentioned two side plates and cross beam plate cooperate to form an H-shaped frame. The opening at the bottom of the H-shaped frame extends directly from top to bottom to the surface of the cold-bent steel, and then extends out to abut against the side surface of the cold-bent steel through the lateral tightening screws. When tightened, the H-shaped frame can be fixed on the end of the cold-bent steel. The second adjusting force-bearing axis is arranged between the two side edges, which can rotate on itself but cannot move in the radial direction. The first adjusting force-bearing axis is arranged between the two swing arms, which can also rotate on itself but cannot move in the radial direction. The adjusting screw can be a positive and negative tooth structure, and the two threaded parts are respectively threadedly connected to the two nut parts. When the adjusting screw rotates, the nut part on the first adjusting force-bearing axis can be close to or away from the nut part on the second adjusting force-bearing axis, thereby realizing the swinging of the swing arm. The swinging of the swing arm realizes the action requirement of moving the positioning column away from the surface of the cold-bent steel or pressing down to the surface of the cold-bent steel. Of course, the adjusting screw can also be a common screw structure, which is threadedly connected to the nut part on the second adjusting force-bearing shaft, and is only inserted into the nut part on the first adjusting force-bearing shaft, and the tension wire is fixed by squeezing the nut on the first adjusting force-bearing shaft by the end of the adjusting screw. When operating the adjusting screw, since the first adjusting force-bearing shaft and the second adjusting force-bearing shaft are both self-rotating structures, the openings of the nut parts on both can be adaptively rotated to align them in an axial direction, so that the operation of the adjusting screw will not cause interference problems.

[0027] When in use, two H-shaped frames are respectively installed on the two ends of the cold-formed steel, and then one end of a cable is fixedly connected to one of the H-shaped frames, and then the other end of the cable is passed under the positioning column on the current H-shaped frame, and then extended to the bottom of the positioning column of the next H-shaped frame, and then fixedly connected to the next H-shaped frame after the bypassing setting. At this time, the cable needs to be initially tightened, and at least one of the two positioning columns does not abut against the cold-formed steel, refer to Figure 4 As shown, the adjusting screw is then operated to move the positioning column toward the surface of the cold-formed steel and to contact the pull wire against the surface of the cold-formed steel. Figure 5 As shown, the wire is effectively stretched tight and both ends are in contact with the surface of the cold-bent steel. A feeler gauge can be used to measure the straightness.

[0028] The height at which the above-mentioned pull wire is fixed to the H-shaped frame needs to be greater than the height when the pull wire passes around the bottom of the positioning column, so as to ensure that the pull wire can be tightened when the positioning column is pressed down. It can be an upper fixed shaft 16 set between the two side panels, and the two ends of the upper fixed shaft can be connected to one end of the swing arm. The swing arm can swing along the upper fixed shaft, and the upper fixed shaft is used to tie the pull wire. A number of limiting ring grooves can also be evenly arranged on the surface of the upper fixed shaft. During the process of tying the pull wire, the pull wire enters the limiting ring groove, so that the pull wire cannot slide along the axial direction of the upper fixed shaft. The outlet position of the pull wire is determined, which can improve the accuracy of the pull wire placement position and avoid the movement of the pull wire end during operation.

[0029] In order to improve the stability of the H-shaped frame after installation, an oblique rear hook plate 12 is also provided on one side of the cross beam plate along the direction of the tension wire pulling, and an acute hook portion is formed between the bottom surface of the cross beam plate and the upper surface of the oblique rear hook plate. Before the H-shaped frame is fixed, it moves to the end of the cold-formed steel in the length direction of the cold-formed steel, wherein the end of the upper surface of the cold-formed steel will be stuck in the acute hook portion, at which time the H-shaped frame cannot continue to move and is also limited along the Z-axis direction. A positioning bolt 13 is provided on the oblique rear hook plate, which extends out and presses against the inner surface of the cold-formed steel, so that the H-shaped frame can be clamped and fixed on the end, and the lateral tightening screw is used to fix it in the width direction of the cold-formed steel, so that the stability of the H-shaped frame after installation is higher. During operation, the lateral tightening screw can be operated first, and then the positioning bolt can be operated.

[0030] A connecting plate is arranged between the tops of the two side plates, that is, a connecting plate is arranged on the top of the H-shaped frame, so that the whole structure is stronger. A force plate 15 is arranged at the end of the lateral abutting screw, and the lateral abutting screw abuts against the surface of the cold-bent steel through the force plate, and the fixing effect is better after abutment.

[0031] In one embodiment, a lower limit protrusion is provided on the end of the swing arm at one end of the positioning column. The two lower limit protrusions of the two swing arms are used to limit the axial movement space of the pull wire along the positioning column. When the pull wire is set at the edge of the cold-bent steel, the lower limit protrusion can prevent the pull wire from slipping off the side of the positioning column, which is convenient for operation.

[0032] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by a person skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. A device for quality inspection of cold-formed steel, characterized in that: It includes a wire rack arranged at both ends of the cold-bent steel, a wire for detection is arranged between the two wire racks, the wire rack includes two side plates arranged in parallel, a cross beam plate is arranged between the two side plates, one of the side plates on the lower side of the cross beam plate is provided with a lateral tightening screw, two side plates on the upper side of the cross beam plate are provided with swing arms, a positioning column is arranged between the protruding ends of the two swing arms, a first adjustment force axis is also arranged between the two swing arms, a second adjustment force axis is also arranged between the two side plates, nut parts are arranged on the first adjustment force axis and the second adjustment force axis, an adjusting screw is arranged between the two nut parts, the adjusting screw is used to drive the two nut parts to move closer or farther away, and the positioning column is used to press the wire against the surface of the cold-bent steel.

2. The device for cold-bent steel quality inspection according to claim 1, characterized in that: An oblique rear hook plate is provided on one side of the cross beam plate along the pulling direction of the pull wire, an acute-angle hook portion is formed between the bottom surface of the cross beam plate and the upper surface of the oblique rear hook plate, and a positioning bolt is provided on the oblique rear hook plate.

3. The device for cold-bent steel quality inspection according to claim 1, characterized in that: A connecting plate is arranged between the tops of the two side plates.

4. The device for cold-bent steel quality inspection according to claim 1, characterized in that: A force-bearing plate is arranged at the end of the lateral abutting screw, and the lateral abutting screw abuts against the surface of the cold-bent steel through the force-bearing plate.

5. The device for cold-bent steel quality inspection according to claim 1, characterized in that: An upper fixed shaft is also arranged between the two side plates, one end of the swing arm is sleeved on the end of the upper fixed shaft, and the upper fixed shaft is used for tying a pull wire.

6. The device for cold-bent steel quality inspection according to claim 5, characterized in that: The surface of the upper fixed shaft is provided with a plurality of limiting ring grooves.

7. The device for cold-bent steel quality inspection according to claim 1, characterized in that: A lower limit convex portion is provided on the end portion of the swing arm located at one end of the positioning column, and the two lower limit convex portions of the two swing arms are used to limit the moving space of the pull wire along the axial direction of the positioning column.

8. The device for cold-bent steel quality inspection according to claim 1, characterized in that: The threaded portion of the adjusting screw is configured as a positive and negative thread structure.

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