Scribing device for square tube corner arc machining
By designing a scribing device for the rounded corners of square tubes, the problems of inaccurate processing and time-consuming replacement of asphalt felt templates were solved, achieving efficient and accurate rounded corner processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-03-10
AI Technical Summary
In the existing technology, the asphalt felt arc template is prone to deviation in the processing of square tube corner arcs, resulting in inaccurate processing accuracy. Furthermore, replacing the template is time-consuming, labor-intensive, and inefficient.
A scribing device for rounding the corners of square tubes was designed. By using a combination of a horizontal bar, a rotating bar, and a sliding roller, the scribing pen can accurately draw arcs on the square tube, avoiding the need to replace the template. The horizontal bar and rotating bar are placed on the square tube, the upright bar is close to the outside, and the sliding roller is close to the inside. The scribing pen is inserted into the hole of the rotating bar to scribing the arc.
It improves the precision and efficiency of arc machining, ensures the accuracy of arc machining, simplifies the operation process, and avoids frequent template replacements.
Smart Images
Figure CN223981812U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of steel structure processing, and in particular provides a scribing device for the rounded corner processing of square tubes. Background Technology
[0002] When processing steel structures, the common practice for marking the rounded corners of square tubes is to first make an asphalt felt rounded template, and then place the template on the square tube to mark the rounded corners. The disadvantages of this method are twofold: first, the asphalt felt template is relatively soft and is prone to deviation during marking, resulting in out-of-tolerance rounded corners and waste; second, different asphalt felt rounded templates are required for processing square tubes with different rounded corners, which is labor-intensive, time-consuming, and inefficient. Utility Model Content
[0003] The purpose of this invention is to provide a scribing device for processing the rounded corners of square tubes, which solves the problem of making rounded templates for asphalt felt, ensures the accuracy of rounded processing, avoids the need to replace rounded templates, and improves processing efficiency.
[0004] This invention places the marking device on a square tube, with the horizontal bar and rotating rod on top of the tube, the vertical rod close to the outside of the tube, and the sliding roller close to the inside. A marking pen is then inserted into the hole in the rotating rod, with the pen tip contacting the tube. The rotating rod is then rotated horizontally, causing the marking pen to draw an arc on the tube. The tube is then cut according to the arc drawn. Different arcs can be drawn by inserting the marking pen into different holes on the rotating rod in the same manner.
[0005] This utility model includes a crossbar 1, a connecting rod 2, a sliding roller 3, a roller 4, a rotating rod 5, and a vertical rod 6, which are used in combination. One end of the crossbar 1 is vertically welded to the top of the vertical rod 6; the other end of the crossbar 1 is horizontally welded to one end of the connecting rod 2; the sliding roller 3 and the roller 4 form a rolling system, and the roller 4 can rotate in the sliding roller 3; the other end of the connecting rod 2 is vertically welded to the side of the sliding roller 3; the rotating rod 5 is vertically welded to the upper end of the roller 4 (see...). Figure 1 , Figure 2 ).
[0006] Among them, crossbar 1 is made of 14mm thick steel plate, and its dimensions are (length) Width) 200 50mm; Connecting rod 2 is machined from 10mm diameter round steel and is 260mm long; Sliding roller 3 is a purchased pre-made bearing with an outer diameter of 60mm and an inner diameter of 20mm; Roller 4 is machined from 20mm diameter round steel and is 100mm long; Rotating rod 5 is machined from 8mm thick steel plate and its dimensions are (length...) Width) 200 30mm, and 3-6 holes are evenly distributed on the rotating rod 5 as needed; the upright rod 6 is made of a 30mm diameter round tube and is 150mm long.
[0007] In use, place the marking device on the square tube 7, with the horizontal bar 1 and the rotating bar 5 on top of the square tube 7, the vertical bar 6 close to the outside of the square tube 7, and the sliding roller 3 close to the inside of the square tube 7. Then, insert the marking pen 8 into the hole of the rotating bar 5, so that the tip of the marking pen 8 contacts the square tube 7. Then, rotate the rotating bar 5 horizontally to make the marking pen 8 draw an arc on the square tube 7. Then, cut the square tube 7 according to the arc. In the same way, different arcs can be drawn by inserting the marking pen 8 into the holes at different positions on the rotating bar 5. Figure 3 , Figure 4 , Figure 5 ).
[0008] The advantages of this utility model are that it is easy to assemble, easy to operate, simple and practical, solves the problem of making arc templates for asphalt felt, ensures the accuracy of arc processing, avoids the need to replace arc templates, and improves processing efficiency. Attached Figure Description
[0009] Figure 1 This is a top view of the marking device;
[0010] Figure 2 This is the front view of the marking device;
[0011] Figure 3 Use a top view (1) for the marking device;
[0012] Figure 4 Use a top view (2) for the marking device;
[0013] Figure 5 Use the front view for the marking device;
[0014] In the diagram, there are: horizontal bar 1, connecting bar 2, sliding roller 3, roller 4, rotating bar 5, upright bar 6, square tube 7, and marking pen 8. Detailed Implementation
[0015] Figures 1-5 This is one specific embodiment of the present invention. The present invention will be further described below with reference to the accompanying drawings.
[0016] This utility model includes a crossbar 1, a connecting rod 2, a sliding roller 3, a roller 4, a rotating rod 5, and a vertical rod 6, which are used in combination. One end of the crossbar 1 is vertically welded to the top of the vertical rod 6; the other end of the crossbar 1 is horizontally welded to one end of the connecting rod 2; the sliding roller 3 and the roller 4 form a rolling system, and the roller 4 can rotate in the sliding roller 3; the other end of the connecting rod 2 is vertically welded to the side of the sliding roller 3; and the rotating rod 5 is vertically welded to the upper end of the roller 4.
[0017] In use, place the marking device on the square tube 7, with the horizontal bar 1 and the rotating bar 5 on top of the square tube 7, the vertical bar 6 close to the outside of the square tube 7, and the sliding roller 3 close to the inside of the square tube 7. Then, insert the marking pen 8 into the hole of the rotating bar 5, so that the tip of the marking pen 8 contacts the square tube 7. Then, rotate the rotating bar 5 horizontally to make the marking pen 8 draw an arc on the square tube 7. Then, cut the square tube 7 according to the arc. In the same way, different arcs can be drawn by inserting the marking pen 8 into the holes at different positions on the rotating bar 5.
[0018] During steel structure fabrication, a scribing device was used for marking the rounded corners of square tubes, achieving good results. This scribing device is used in combination: one end of a horizontal bar is welded perpendicularly to the top of the vertical post; the other end of the horizontal bar is welded horizontally to one end of a connecting rod; a sliding roller and a roller form a rolling system, allowing the roller to rotate; the other end of the connecting rod is welded perpendicularly to the side of the sliding roller; and a rotating rod is welded perpendicularly to the upper end of the roller. In use, the scribing device is placed on the square tube, with the horizontal bar and rotating rod on top, the vertical post close to the outside of the tube, and the sliding roller close to the inside. Then, a scribing pen is inserted into the hole in the rotating rod, ensuring the pen tip contacts the tube. The rotating rod is then rotated horizontally, causing the pen to draw an arc on the tube. The tube is then cut according to the arc drawn. Different arcs can be drawn by inserting the pen into different holes on the rotating rod in the same way. This marking device is simple to assemble, easy to operate, and practical. It solves the problem of making arc templates for asphalt felt, ensures the accuracy of arc processing, avoids the need to replace arc templates, and improves processing efficiency.
Claims
1. A square tube corner arc processing scribe device, characterized by The utility model relates to a horizontal rod (1), connecting rod (2), slide roll (3), roller (4), rotary rod (5), vertical rod (6) are included, combination is used, and the one end of horizontal rod (1) is perpendicular with the top of vertical rod (6) and is welded, the other end of horizontal rod (1) is perpendicular with the one end of connecting rod (2) and is welded in horizontal direction, slide roll (3) and roller (4) constitute rolling system, and roller (4) can rotate in slide roll (3), the other end of connecting rod (2) is perpendicular with the side of slide roll (3) and is welded, and rotary rod (5) is perpendicular with the upper end of roller (4) and is welded.
2. The square tube corner arc processing scribe line device according to claim 1, wherein Horizontal rod (1) is processed from 14mm thick steel plate, and the size is (length width) 200x50mm, connecting rod (2) is processed from diameter 10mm round steel, and the length is 260mm, slide roll (3) belongs to the bearing outer diameter 60mm of purchase finished product, and the inner diameter is 20mm, roller (4) is processed from diameter 20mm round steel, and the length is 100mm, rotary rod (5) is processed from 8mm thick steel plate, and the size is (length width) 200x30mm, and according to the need, 3-6 holes are evenly set up on rotary rod (5), vertical rod (6) is processed from diameter 30mm round tube, and the length is 150mm.