Scribing positioning tool for steel structure machining

Abstract

The utility model belongs to the technical field of tools for steel structure machining, and particularly relates to a lineation positioning tool for steel structure machining, which comprises a steel ruler, an alloy bearing fixed in the middle of one side of the steel ruler, a guide pipe fixed on the inner ring of the alloy bearing along the axial direction, and a mounting plate fixed on the outer side of the guide pipe along the axial direction and parallel to the steel ruler. Two groups of steel balls are rotationally mounted on the lower surface of the mounting plate and are distributed in a horizontal array, a guide wheel mechanism is arranged on the upper surface of the mounting plate and comprises two sliding plates slidably connected with the upper surface of the mounting plate, and the ends, away from each other, of the two sliding plates are bent downwards from the outer portion of the mounting plate; and a plurality of guide wheels are rotationally mounted at the bent ends of the two sliding plates. The steel ruler is kept suspended when pushed forward, the steel ruler can be turned downwards to be attached to a steel structure for positioning, the steel ruler is suspended again after scribing, and the back abrasion degree of the steel ruler in the positioning process can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of tooling for steel structure processing, and specifically relates to a marking and positioning tooling for steel structure processing. Background Art

[0002] Steel structure processing is to cut I-beams, square steel pipes, etc. into different components and then assemble them together. Assembly is also called "assembly", "riveting", and "riveting", which is to assemble parts such as parts plates or brackets to the main components. Generally, there are steps such as marking, marking, cutting, assembly, and spot welding.

[0003] When marking on a steel structure with a traditional handheld ruler, each line needs to be recalibrated and centered, which is a cumbersome process. Existing rulers often need to be equipped with positioning tools, such as using springs to tighten two rolling devices at both ends, and the two rolling devices can be used to roll along the two sides of the steel structure. The two rolling devices can only slide relative to the ruler along a straight line, thereby driving the ruler to the center.

[0004] When using a steel ruler to mark a steel structure, two rolling devices are used to stick to the two sides of the steel structure respectively, which can push it forward or backward. However, the steel ruler still needs to stick to the steel structure as a whole, and the friction area with the steel structure is large. The tilting of the steel ruler will cause the rolling device to separate from the steel structure, resulting in greater wear on the back of the steel ruler during positioning. For this reason, we propose a marking and positioning tool for steel structure processing. Utility Model Content

[0005] The utility model aims to provide a marking and positioning tool for steel structure processing, which keeps the steel ruler suspended in the air when being pushed forward, and can be turned down to stick to the steel structure for positioning. After marking, the steel ruler is suspended in the air again, which can reduce the wear degree of the back side of the steel ruler during the positioning process.

[0006] The technical solutions adopted in this utility are as follows:

[0007] A marking and positioning tool for steel structure processing comprises a steel ruler, an alloy bearing is fixed in the middle of one side of the steel ruler, a guide tube is fixed to the inner ring of the alloy bearing along the axial direction, a mounting plate is fixed to the outer side of the guide tube along the axial direction, the mounting plate is parallel to the steel ruler, two groups of steel balls are rotatably mounted on the lower surface of the mounting plate, and the two groups of several steel balls are distributed along a horizontal array, a guide wheel mechanism is arranged on the upper surface of the mounting plate, when marking and positioning, the spacing of the guide wheel mechanism is opened and sleeved on both sides of the steel structure, the mounting plate is placed on the upper surface of the steel structure and padded with the two groups of steel balls, so that the mounting plate is pushed forward along the axial direction of the steel structure and the steel ruler is kept suspended in the air, after reaching the designated position, the alloy bearing can be rotated under the support of the guide tube, and the steel ruler is flipped downward in a vertical plane, so that the scale of the steel ruler is conveniently placed at a designated distance on the steel structure, and the marking can be guided after the positioning is completed, and the position where the steel ruler is placed can be measured by a tape measure, and the steel ruler is flipped upward after marking and is suspended on the steel structure, so that the steel ruler does not need to be kept in close contact with the steel structure, the wear degree of the back side of the steel ruler during positioning can be reduced, and the service life of the steel ruler can be extended.

[0008] The guide wheel mechanism includes two sliding plates slidably connected to the upper surface of the mounting plate, the ends of the two sliding plates away from each other are bent downward from the outside of the mounting plate, and a plurality of guide wheels are rotatably installed at the bent ends of the two sliding plates, and a plurality of rubber bands are fixed at the ends of the two sliding plates close to each other, and the rubber bands pass through the guide tubes, and push the two sliding plates to slide along the upper surface of the mounting plate, away from each other to increase the spacing, and stretch these rubber bands, and then put the guide wheels at both ends of the mounting plate on both sides of the steel structure respectively, let go, and use the rubber bands to tighten the two sliding plates close to each other, drive the guide wheels to stick to the steel structure, and because the sliding plate only slides along the axial direction of the mounting plate, the mounting plate is straightened from both sides, so that the mounting plate and the steel structure are cross-shaped at this time.

[0009] Slide rails are axially fixed on both sides of the upper surface of the mounting plate, and the upper surfaces of the slide rails are slidably connected to the lower surfaces of adjacent sliding plates. The slide rails are used to guide the sliding plates axially in the mounting plates and to limit them in other directions in the horizontal plane to prevent the two sliding plates from deviating.

[0010] Both ends of the guide tube are bonded with polyurethane foam rings, and the two polyurethane foam rings wrap the inner edge of the guide tube. The inner edge of the guide tube is separated from the rubber band by the polyurethane foam ring, thereby reducing the cutting effect of the inner edge of the guide tube on the rubber band.

[0011] The lower surface of the guide tube is located on both sides of the alloy bearing and is fixed with support plates at intervals. The lower surfaces of the two support plates are fixedly connected to the upper surface of the mounting plate to support the guide tube from both sides of the alloy bearing. The support area is large and the fulcrums are sufficient so that the guide tube can stably support the alloy bearing and the steel ruler.

[0012] On both sides of the outer ring of the alloy bearing, gussets are fixed. One side of each of the two gussets is fixedly connected to one side of the steel ruler, increasing the connection area between the alloy bearing and the steel ruler, strengthening the connection between the alloy bearing and the steel ruler, and reducing the occurrence of fractures.

[0013] The technical effects achieved by this utility model are as follows:

[0014] For a scribing and positioning tooling for steel structure processing of this utility model, when scribing and positioning, open the spacing sleeve of the guide wheel mechanism and put it on both sides of the steel structure. Place the mounting plate on the upper surface of the steel structure and pad it with two groups of steel balls. In this way, push the mounting plate to move forward along the axial direction of the steel structure and keep the steel ruler suspended. After reaching the specified position, under the support of the guide pipe, the alloy bearing can be rotated, and the steel ruler can be flipped downward in a vertical plane, facilitating the scale of the steel ruler to be placed on the specified distance position on the steel structure. After positioning, it can guide scribing. The position where the steel ruler is placed can be measured with a tape measure. After scribing, flip the steel ruler upward and suspend it on the steel structure. There is no need for the steel ruler to be always in close contact with the steel structure, which can reduce the wear degree of the back surface of the steel ruler during the positioning process and extend the service life of the steel ruler. Description of the Drawings

[0015] Figure 1 is the front view of a scribing and positioning tooling for steel structure processing of this utility model;

[0016] Figure 2 is the rear view of the steel ruler of this utility model;

[0017] Figure 3 is the bottom view of the mounting plate of this utility model;

[0018] Figure 4 is the front view of the sliding plate of this utility model.

[0019] In the drawings, the list of components represented by each reference numeral is as follows:

[0020] 1. Steel ruler; 2. Alloy bearing; 3. Guide pipe; 4. Mounting plate; 5. Steel ball; 6. Sliding plate; 7. Guide wheel; 8. Rubber band; 9. Slide rail; 10. Polyurethane foam ring; 11. Support plate; 12. Gusset. Detailed Embodiments

[0021] In order to make the purpose and advantages of this utility model clearer, the following specifically describes this utility model in combination with embodiments. It should be understood that the following text only describes one or several specific implementation manners of this utility model and does not strictly limit the specific scope of protection requested by this utility model.

[0022] As Figures 1-4As shown in the figure, a scribing and positioning tool for steel structure processing includes a steel ruler 1. In the middle on one side of the steel ruler 1, an alloy bearing 2 is fixed. One side of the outer ring of the alloy bearing 2 is fixedly connected to the middle on one side of the steel ruler 1. Along the axial direction, a guide tube 3 is fixedly installed on the inner ring of the alloy bearing 2. Along the axial direction on the outer side of the guide tube 3, a mounting plate 4 is fixedly installed. The mounting plate 4 is parallel to the steel ruler 1. On the lower surface of the mounting plate 4, two groups of steel balls 5 are rotatably installed. A number of steel balls 5 in the two groups are all distributed in a horizontal array. On the upper surface of the mounting plate 4, a guide wheel mechanism is arranged. Before processing steel structures such as I-beams and square steel pipes, they need to be cut into different components. Generally, an oil-based pen or chalk is used for scribing and marking. When scribing and positioning, open the distance of the guide wheel mechanism and put it on both sides of the steel structure. The mounting plate 4 is placed on the upper surface of the steel structure and padded by two groups of steel balls 5. In this way, push the mounting plate 4 to move forward along the axial direction of the steel structure and keep the steel ruler 1 suspended. After reaching the specified position, under the support of the guide tube 3, the alloy bearing 2 can be rotated, and the steel ruler 1 can be turned downward in a vertical plane, which is convenient to place the scale of the steel ruler 1 at the specified distance position on the steel structure, complete the positioning and guide the scribing. The position where the steel ruler 1 is placed can be measured with a tape measure. After scribing, turn the steel ruler 1 upward and suspend it on the steel structure. There is no need for the steel ruler 1 to be always in close contact with the steel structure, which can reduce the wear degree of the back surface of the steel ruler 1 during the positioning process and extend the service life of the steel ruler 1.

[0023] As Figure 1 and Figure 3 shown, a number of steel balls 5 in the two groups are all partially embedded inside the mounting plate 4. In this way, it is convenient for the steel balls 5 to be suspended with the mounting plate 4, and lubricating oil can also be applied to the exposed parts of the steel balls 5 to lubricate between the steel balls 5 and the mounting plate 4. The overall height of the steel balls 5 and the mounting plate 4 is small, which will not significantly raise the center of gravity of the tooling, and is convenient for the tooling to maintain stability during the pushing process.

[0024] As Figure 1 and Figure 4 shown, the guide wheel mechanism includes two sliding plates 6 slidably connected to the upper surface of the mounting plate 4. One end of the two sliding plates 6 away from each other is bent downward from the outside of the mounting plate 4. A number of guide wheels 7 are rotatably installed at the bent ends of the two sliding plates 6. The bent ends of the sliding plates 6 can be selectively rotatably installed with pairs of guide wheels 7. A number of rubber bands 8 are fixed at the ends of the two sliding plates 6 close to each other. The rubber bands 8 all pass through the guide tube 3. Push the two sliding plates 6 to slide along the upper surface of the mounting plate 4, move away from each other to increase the distance, and stretch these rubber bands 8. Then place the guide wheels 7 at both ends of the mounting plate 4 on both sides of the steel structure respectively, and let go. Use the rubber bands 8 to pull the two sliding plates 6 close to each other, drive the guide wheels 7 to stick to the steel structure. Since the sliding plates 6 only slide along the axial direction of the mounting plate 4, straighten the mounting plate 4 from both sides so that the mounting plate 4 and the steel structure are in a cross shape at this time, without the need to straighten it by hand. Then the guide wheels 7 can rotate horizontally and move forward with the mounting plate 4 and the sliding plates 6.

[0025] As Figure 1 andFigure 4 As shown, slide rails 9 are fixedly installed along the axial direction on both sides of the upper surface of the mounting plate 4. The upper surfaces of the slide rails 9 are slidably connected to the lower surfaces of the adjacent sliding plates 6. The slide rails 9 are used to guide the sliding plates 6 in the axial direction of the mounting plate 4 and limit them in other directions on the horizontal plane to prevent the two sliding plates 6 from deviating.

[0026] As Figure 1 and Figure 2 shown, polyurethane foam rings 10 are bonded to both ends of the guiding tube 3. The two polyurethane foam rings 10 wrap the inner edges of the guiding tube 3, and the polyurethane foam rings 10 are used to separate the inner edges of the guiding tube 3 from the rubber band 8, reducing the cutting effect of the inner edges of the guiding tube 3 on the rubber band 8.

[0027] As Figure 1 and Figure 2 shown, supporting plates 11 are fixedly installed at intervals on the lower surface of the guiding tube 3 at positions on both sides of the alloy bearing 2. The lower surfaces of the two supporting plates 11 are fixedly connected to the upper surface of the mounting plate 4, supporting the guiding tube 3 from both sides of the alloy bearing 2. The supporting area is large and the fulcrums are sufficient, so that the guiding tube 3 can stably support the alloy bearing 2 and the steel ruler 1.

[0028] As Figure 1 and Figure 2 shown, angle plates 12 are fixedly installed on both sides of the outer ring of the alloy bearing 2. One side of the two angle plates 12 is fixedly connected to one side of the steel ruler 1, increasing the connection area between the alloy bearing 2 and the steel ruler 1, strengthening the connection between the alloy bearing 2 and the steel ruler 1, and reducing the occurrence of fracture.

[0029] The working principle of this utility model is as follows: When positioning by scribing, open the spacing sleeve of the guide wheel mechanism on both sides of the steel structure. Place the mounting plate 4 on the upper surface of the steel structure and pad it up with two groups of steel balls 5. Then push the mounting plate 4 to move forward along the axial direction of the steel structure and keep the steel ruler 1 suspended. After reaching the specified position, under the support of the guiding tube 3, the alloy bearing 2 can be rotated to turn the steel ruler 1 downward in a vertical plane, facilitating the scale of the steel ruler 1 to be placed on the specified distance position on the steel structure to complete the positioning and guide the scribing. The position where the steel ruler 1 is placed can be measured with a tape measure. After scribing, turn the steel ruler 1 upward to suspend it on the steel structure. There is no need for the steel ruler 1 to be always in close contact with the steel structure, which can reduce the wear degree of the back surface of the steel ruler 1 during the positioning process and extend the service life of the steel ruler 1.

[0030] The above are only the preferred embodiments of this utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of this utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of this utility model. The structures, devices, and operation methods not specifically described and explained in this utility model are implemented according to the conventional means in this field without special instructions and limitations.

Claims

1. A marking and positioning tool for steel structure processing, comprising a steel ruler (1), characterized in that: An alloy bearing (2) is fixed in the middle of one side of the steel ruler (1); a guide tube (3) is fixed axially to the inner ring of the alloy bearing (2); a mounting plate (4) is fixed axially to the outer side of the guide tube (3); the mounting plate (4) is parallel to the steel ruler (1); two groups of steel balls (5) are rotatably mounted on the lower surface of the mounting plate (4); the two groups of steel balls (5) are distributed in a horizontal array; and a guide wheel mechanism is arranged on the upper surface of the mounting plate (4).

2. The marking and positioning tool for steel structure processing according to claim 1, characterized in that: The guide wheel mechanism comprises two sliding plates (6) slidably connected to the upper surface of the mounting plate (4); the ends of the two sliding plates (6) that are away from each other are bent downward from the outside of the mounting plate (4); a plurality of guide wheels (7) are rotatably mounted on the bent ends of the two sliding plates (6); a plurality of rubber bands (8) are fixed to the ends of the two sliding plates (6) that are close to each other; and the rubber bands (8) pass through the guide tube (3).

3. The marking and positioning tool for steel structure processing according to claim 2, characterized in that: Slide rails (9) are fixed axially on both sides of the upper surface of the mounting plate (4), and the upper surfaces of the slide rails (9) are slidably connected to the lower surfaces of adjacent sliding plates (6).

4. The marking and positioning tool for steel structure processing according to claim 1, characterized in that: Both ends of the guide tube (3) are bonded with polyurethane foam rings (10), and the two polyurethane foam rings (10) wrap the inner edge of the guide tube (3).

5. The marking and positioning tool for steel structure processing according to claim 1, characterized in that: Support plates (11) are fixed at intervals on the lower surface of the guide tube (3) at positions on both sides of the alloy bearing (2), and the lower surfaces of the two support plates (11) are fixedly connected to the upper surface of the mounting plate (4).

6. The marking and positioning tool for steel structure processing according to claim 1, characterized in that: Angle plates (12) are fixed on both sides of the outer ring of the alloy bearing (2), and one side of the two angle plates (12) is fixedly connected to one side of the steel ruler (1).

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