Device for ensuring uniformity of R angle of high-strength thin-wall square and rectangular pipe
Through the multiple bending and down pressure device, the positioning mechanism and multi-angle vertical rollers are used to solve the problem of uneven R angle caused by the high-strength thin-walled strip steel during the forming process, and the uniform R angle of the square rectangular tube is achieved It is convenient for processing high-strength thin-wall strip steel.
Patent Information
- Application Number
- CN202420772989.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-15
AI Technical Summary
High-strength thin-walled strip steel is prone to wander in the hole shape during the forming process, resulting in uneven R angles of the square rectangular tube.
A device including multiple frames and positioning mechanisms is designed, and through multiple bending and downward pressures of the first vertical roller, the second vertical roller, etc., the positioning frame, the screw, the drive motor and the limiting member are combined to ensure that The positioning and downward pressure of high-strength thin-wall strip steel during bending to avoid unevenness caused by rebound.
It effectively avoids the uneven R angle of square rectangular tube caused by rebound of high-strength thin-wall strip steel, improves the bending effect of high-strength thin-wall strip steel, and facilitates the production of uniform square rectangular tubes.
Smart Images
Figure CN222268457U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of square tubes, in particular to a device for ensuring uniform R angles of high-strength thin-wall square tubes. Background Art
[0002] High-strength thin-walled strip steel, from its name, we can analyze two key properties: high strength and thin wall. High strength means that the strip steel has excellent mechanical properties, and thin wall means that the thickness of the strip steel is relatively small, with light weight and good flexibility. High-strength thin-walled strip steel is a steel with high strength and thin wall characteristics. It combines excellent mechanical properties and lightweight design, making it have wide application value in many industrial fields. People will use high-strength thin-walled strip steel to make square tubes.
[0003] After massive searches, it was found that there were problems in the production of high-strength thin-walled square tubes in the prior art. Due to the large rebound and thin wall of high-strength thin-walled strip steel, the high-strength thin-walled strip steel easily wanders in the hole during the forming process, resulting in uneven R angles of the four square tubes. Therefore, based on the above searches and combined with the prior art, the utility model proposes a device to ensure uniform R angles of high-strength thin-walled square tubes to solve the above problems. Utility Model Content
[0004] The utility model aims to provide a device for ensuring uniform R angle of high-strength thin-walled square tubes, so as to solve the problems raised in the above-mentioned background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A device for ensuring uniform R angle of high-strength thin-walled square tubes comprises a first frame, a second frame is arranged on one side of the first frame, a third frame is arranged on one side of the second frame, a fourth frame is arranged on one side of the third frame, a fifth frame is arranged on one side of the fourth frame, a sixth frame is arranged on one side of the fifth frame, a seventh frame is arranged on one side of the sixth frame, an eighth frame is arranged on one side of the seventh frame, and a plurality of positioning mechanisms for positioning high-strength thin-walled strip steel are arranged at intervals between the first frame to the sixth frame.
[0007] Furthermore, a first vertical roller for bending high-strength thin-walled strip steel is installed on the top surface of the first frame, two second vertical rollers are installed on the top surface of the second frame, two third vertical rollers are installed on the top surface of the third frame, two fourth vertical rollers are installed on the top surface of the fourth frame, two fifth vertical rollers are installed on the top surface of the fifth frame, two sixth vertical rollers are installed on the top surface of the sixth frame, two seventh vertical rollers are installed on the top surface of the seventh frame, and two eighth vertical rollers are installed on the top surface of the eighth frame.
[0008] Furthermore, both ends of the seventh vertical roller are inclined toward the middle position at an angle of 48°, and both ends of the eighth vertical roller are inclined toward the middle position at an angle of 58°.
[0009] Furthermore, the positioning mechanism includes a plurality of positioning frames, the interior of the positioning frames is rotatably connected to a screw rod, a first driving motor for driving the screw rod to rotate is fixedly installed on one side of the positioning frame, the outer circular wall surface of the first driving motor is slidably connected to a sliding block, the top surface of the sliding block is rotatably connected to a vertical rod, the outer circular wall surface of the vertical rod is connected to a first positioning roller via a bearing, and the top surface of the vertical rod is provided with a limiting member for limiting the vertical rod.
[0010] Furthermore, a first pressing roller for pressing down high-strength thin-walled strip steel is installed inside the first frame, two second pressing rollers are installed inside the second frame, two third pressing rollers are installed inside the third frame, two fourth pressing rollers are installed inside the fourth frame, two fifth pressing rollers are installed inside the fifth frame, two sixth pressing rollers are installed inside the sixth frame, two seventh pressing rollers are installed inside the seventh frame, and two eighth pressing rollers are installed inside the eighth frame.
[0011] Furthermore, two threaded columns for fixing the positioning rack are installed on the bottom surface of the positioning rack.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. Through the first frame, the high-strength thin-walled strip steel bent on the first frame will enter the interior of the positioning frame and then enter the interior of the second frame. The high-strength thin-walled strip steel after bending is positioned by the cooperation of the first driving motor, the screw rod, the sliding block, the vertical rod, the first positioning roller and the second driving motor. The staff uses the first positioning roller, the second positioning roller, the third guide roller and the fourth positioning roller at different angles on multiple positioning frames to position the high-strength thin-walled strip steel during the bending process multiple times to avoid uneven R angle of the square tube due to the rebound of the high-strength thin-walled strip steel, so as to ensure the uniform R angle of the square tube, which is convenient for the staff to use the high-strength thin-walled strip steel to make square tubes;
[0014] 2. By calculating the rebound amount of high-strength thin-walled strip steel, the staff increased the angles of the seventh and eighth vertical rollers to overcome the defects of the seventh and eighth vertical rollers, avoiding the failure of high-strength thin-walled strip steel to reach the expected design value due to the large rebound amount of high-strength thin-walled strip steel, and improving the bending effect of high-strength thin-walled strip steel. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0016] Figure 2 This is a schematic diagram of the pole structure of the utility model;
[0017] Figure 3 This is a schematic diagram of the second frame structure of the utility model;
[0018] Figure 4 This is a schematic diagram of the structure of the second positioning roller of the utility model;
[0019] Figure 5 This is a schematic diagram of the structure of the third lower pressing roller of the utility model;
[0020] Figure 6 This is a schematic diagram of the structure of the fourth lower pressing roller of the utility model;
[0021] Figure 7 This is a schematic diagram of the structure of the third guide roller of the utility model;
[0022] Figure 8 This is a schematic structural diagram of the fifth lower pressing roller of the utility model;
[0023] Fig. 9 This is a schematic diagram of the structure of the fourth positioning roller of the utility model;
[0024] Fig.10 This is a schematic diagram of the sixth vertical roller structure of the utility model;
[0025] Fig.11 This is a schematic structural diagram of the seventh lower pressing roller of the utility model;
[0026] Fig.12 This is a schematic diagram of the structure of the eighth lower pressing roller of the utility model;
[0027] Fig.13 It is a schematic cross-sectional structure diagram of the seventh vertical roller and the eighth vertical roller of the utility model.
[0028] In the figure: 1, first frame; 2, column; 3, transmission shaft; 4, first vertical roller; 5, first lower pressure roller; 6, support shaft; 7, connecting shaft; 8, bushing; 9, positioning mechanism; 10, positioning frame; 11, threaded column; 12, first drive motor; 13, screw rod; 14, sliding block; 15, bearing sleeve; 16, second drive motor; 17, column; 18, first positioning roller; 19, guide rod; 20, second frame; 21, second vertical roller; 22, second lower pressure roller; 23, second positioning roller; 24 , the third frame; 25, the third vertical roller; 26, the third lower pressure roller; 27, the fourth frame; 28, the fourth vertical roller; 29, the fourth lower pressure roller; 30, the third guide roller; 31, the fifth frame; 32, the fifth vertical roller; 33, the fifth lower pressure roller; 34, the fourth positioning roller; 35, the sixth frame; 36, the sixth vertical roller; 37, the sixth lower pressure roller; 38, the seventh frame; 39, the seventh vertical roller; 40, the seventh lower pressure roller; 41, the eighth frame; 42, the eighth vertical roller; 43, the eighth lower pressure roller; 44, the connecting block. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 and Fig.13, a device for ensuring uniform R angle of high-strength thin-walled square tube, comprising a first frame 1, a second frame 20 is arranged on one side of the first frame 1, a third frame 24 is arranged on one side of the second frame 20, a fourth frame 27 is arranged on one side of the third frame 24, a fifth frame 31 is arranged on one side of the fourth frame 27, a sixth frame 35 is arranged on one side of the fifth frame 31, a seventh frame 38 is arranged on one side of the sixth frame 35, and an eighth frame 41 is arranged on one side of the seventh frame 38, so that the first frame 1 to the eighth frame 41 can bend the high-strength thin-walled strip steel in sequence, which is the square tube processing flow, and a positioning mechanism 9 for positioning the high-strength thin-walled strip steel is arranged between the first frame 1 and the second frame 20, between the second frame 20 and the third frame 24, between the fourth frame 27 and the fifth frame 31, and between the fifth frame 31 and the sixth frame 35;
[0031] The top surface of the first frame 1 is equipped with a first vertical roller 4 for bending high-strength thin-walled strip steel, the top surface of the second frame 20 is equipped with two second vertical rollers 21, the top surface of the third frame 24 is equipped with two third vertical rollers 25, the top surface of the fourth frame 27 is equipped with two fourth vertical rollers 28, the top surface of the fifth frame 31 is equipped with two fifth vertical rollers 32, the top surface of the sixth frame 35 is equipped with two sixth vertical rollers 36, the top surface of the seventh frame 38 is equipped with two seventh vertical rollers 39, the top surface of the eighth frame 41 is equipped with two eighth vertical rollers 42, the first vertical roller 4, the second vertical roller 21, the third vertical roller 25, the fourth vertical roller 28, the fifth vertical roller 32, the sixth vertical roller 36, the seventh vertical roller 39 and the seventh vertical roller 39 all have different angles;
[0032] When the square tube is made of high-strength thin-walled strip steel as the material through the first frame 1, the high-strength thin-walled strip steel will first enter the first frame 1, and the two first vertical rollers 4 inside the first frame 1 will extrude the high-strength thin-walled strip steel so that the high-strength thin-walled strip steel is bent. After the initial bending, the high-strength thin-walled strip steel will enter the second frame 20, and the second vertical roller 21 inside the second frame 20 will bend the high-strength thin-walled strip steel again. By analogy, the high-strength thin-walled strip steel continuously passes through the first frame 1 all the way to the eighth frame 41, and the angle of the high-strength thin-walled strip steel is gradually bent. The first vertical roller 4, the second vertical roller 21, the third vertical roller 25, the fourth vertical roller 28, the fifth vertical roller 32, the sixth vertical roller 36, and the seventh vertical roller 39 all have different angles, so the high-strength thin-walled strip steel can be continuously bent, so as to be processed into a square tube using the high-strength thin-walled strip steel;
[0033] Both ends of the seventh vertical roller 39 are inclined toward the middle position with an angle of 48°, and both ends of the eighth vertical roller 42 are inclined toward the middle position with an angle of 58°. By calculating the rebound amount of the high-strength thin-walled strip, the staff increased the angles of the seventh vertical roller 39 and the eighth vertical roller 42 to overcome the defects of the seventh vertical roller 39 and the eighth vertical roller 42, avoiding the high-strength thin-walled strip and the large rebound amount. The high-strength thin-walled strip cannot reach the expected design value, and the bending effect of the high-strength thin-walled strip is improved. In addition, when bending a circular cross-section rod, the calculation formula for the punch corner radius is technical common knowledge known to personnel in this technical field.
[0034] Example 2: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 and Fig.13 A device for ensuring uniform R angle of high-strength thin-walled square tube, a positioning mechanism 9 includes a plurality of positioning frames 10, the plurality of positioning frames 10 are arranged at intervals between the first frame 1 and the second frame 20, between the second frame 20 and the third frame 24, between the fourth frame 27 and the fifth frame 31, and between the fifth frame 31 and the sixth frame 35, the inner rotatable connection of the positioning frame 10 is connected with a screw rod 13, a first driving motor 12 for driving the screw rod 13 to rotate is fixedly installed on one side of the positioning frame 10, the outer circumferential wall surface of the first driving motor 12 is slidably connected with a sliding block 14, a bearing sleeve 15 is installed on the sliding block 14 by bolts, the inner circumferential wall surface of the bearing sleeve 15 is slidably connected with the outer circumferential wall surface of the screw rod 13, and the top surface of the sliding block 14 is rotatably connected with a vertical Rod 17, the outer circumferential wall surface of the vertical rod 17 is connected with the first positioning roller 18 through a bearing, and the top surface of the vertical rod 17 is provided with a limiting member for limiting the vertical rod 17, and the limiting member includes two connecting blocks 44, and the two connecting blocks 44 are respectively installed on the top surfaces of the two vertical rods 17 through bearings, and a guide rod 19 is slidably connected between the connecting blocks 44. Through the vertical rod 17, the vertical rod 17 will move inward along the guide rod 19 when moving inward, and the guide rod 19 can limit the position of the vertical rod 17 to avoid the deviation of the two vertical rods 17. Because the multiple positioning racks 10 have the same structures except for the first positioning roller 18, the second positioning roller 23, the third guide roller 30 and the fourth positioning roller 34 with different angles, so that this effect is also applicable to other positioning racks 10;
[0035] Through the first frame 1 that is set up, the high-strength thin-walled strip steel bent on the first frame 1 will enter the interior of the positioning frame 10 and then enter the interior of the second frame 20. The staff starts the first drive motor 12, and the driving shaft of the first drive motor 12 rotates to drive the screw rod 13 to rotate. The rotation of the screw rod 13 causes the two sliding blocks 14 to drive the vertical rod 17 to move inward along the screw rod 13 until the first positioning roller 18 on the vertical rod 17 abuts against the bent high-strength thin-walled strip steel. At the same time, the staff starts the second drive motor 16, and the driving shaft of the second drive motor 16 rotates to drive the vertical rod 17 to rotate and the inner ring of the bearing. The two first positioning rollers 18 can position the high-strength thin-walled strip steel after bending to prevent To prevent the high-strength thin-walled strip steel from rebounding after being bent by the first frame 1, the staff arranges multiple positioning frames 10 between the first frame 1 and the second frame 20, the second frame 20 and the third frame 24, the fourth frame 27 and the fifth frame 31, and the fifth frame 31 and the sixth frame 35, respectively, so that the first positioning roller 18, the second positioning roller 23, the third guide roller 30 and the fourth positioning roller 34 of the multiple positioning frames 10 with different angles can perform multiple positioning on the high-strength thin-walled strip steel during the bending process, so as to avoid the uneven R angle of the square tube caused by the rebound of the high-strength thin-walled strip steel, so as to achieve the effect of ensuring the uniform R angle of the square tube, and facilitate the staff to use the high-strength thin-walled strip steel to make the square tube;
[0036] The first frame 1 is provided with a first pressing roller 5 for pressing down the high-strength thin-walled strip steel, the second frame 20 is provided with two second pressing rollers 22, the third frame 24 is provided with two third pressing rollers 26, the fourth frame 27 is provided with two fourth pressing rollers 29, the fifth frame 31 is provided with two fifth pressing rollers 33, the sixth frame 35 is provided with two sixth pressing rollers 37, the seventh frame 38 is provided with two seventh pressing rollers 40, the eighth frame 41 is provided with two eighth pressing rollers 43, the first pressing roller 5, the second pressing roller 22, the third pressing roller 26, the fourth pressing roller 29, the fifth pressing roller 33, the sixth pressing roller 37, the seventh pressing roller 40 and the eighth pressing roller 43 are provided with different angles, as shown in the attached drawings of the specification, the top surface of the first frame 1 is provided with a moving part for moving the first vertical roller 4 and the first pressing roller 5, the moving part comprises two upright posts 2, and the two upright posts 2 are both slidably connected to the first frame 1. The top surface of the frame 1, the top surface of the first frame 1 is provided with a slide groove, the bottom surface of the column 2 is fixedly installed with a slider, the slider is slidably connected to the slide groove, a transmission shaft 3 is rotatably connected between the two columns 2, a motor for driving the transmission shaft 3 to rotate is fixedly installed on one side of the first frame 1, two first vertical rollers 4 and two first lower pressure rollers 5 are respectively slidably connected to the outer circumferential wall surfaces of the two transmission shafts 3, the second frame 20, the third frame 24, the fourth frame 27, the fifth frame 31, the sixth frame 35, the seventh frame 38 and the eighth frame 41 have the same moving parts as those on the first frame 1, which will not be described one by one here. Through the first frame 1, when the high-strength thin-walled strip enters the first frame 1, the motor rotates to drive the two transmission shafts 3 to rotate, and the two transmission shafts 3 rotate to make the two columns 2 slide along the transmission shafts 3. The sliding of the columns 2 drives the two sets of first vertical rollers 4 and the first lower pressure roller 5 to move inward to bend the high-strength thin-walled strip. The subsequent second frame 20, the third frame 24, etc. also have the same working process;
[0037] The moving part also includes two supporting shafts 6, which are respectively slidably connected to the inside of the column 2, a connecting shaft 7 is installed between the two supporting shafts 6, and two shaft sleeves 8 are arranged between the connecting shaft 7 and the supporting shaft 6. The shaft sleeves 8 connect the supporting shaft 6 and the connecting shaft 7 together through the hexagon socket bolts. Through the setting of the column 2, the column 2 moves inward along the supporting shaft 6 and the connecting shaft 7. The supporting shaft 6 and the connecting shaft 7 can limit the movement of the column 2 to avoid offset between the two columns 2;
[0038] By setting the first frame 1, when the high-strength thin-walled strip enters the first frame 1 for bending, the two first lower pressing rollers 5 on the first frame 1 can press down the high-strength thin-walled strip. Similarly, the second lower pressing roller 22 on the second frame 20, the third vertical roller 25 on the third frame 24, the fourth lower pressing roller 29 on the fourth frame 27, the fifth lower pressing roller 33 on the fifth frame 31, the sixth lower pressing roller 37 on the sixth frame 35, the seventh lower pressing roller 40 on the seventh frame 38 and the eighth lower pressing roller 43 on the eighth frame 41 can all press down the high-strength thin-walled strip during the bending process, thereby limiting the high-strength thin-walled strip, thereby improving the bending effect of the high-strength thin-walled strip.
[0039] Two threaded columns 11 for fixing the positioning frame 10 to the ground are installed on the bottom surface of the positioning frame 10. Two circular holes are provided on the inner bottom surface of the positioning frame 10. The threaded columns 11 are movably sleeved on the inner circular wall of the circular hole. Through the setting of the positioning frame 10, the staff can use the threaded columns 11 on the positioning frame 10 to fix the positioning frame 10 on the ground, thereby achieving the installation effect of the positioning frame 10.
[0040] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.
Claims
1. A device for ensuring uniform R angle of high-strength thin-walled square tubes, comprising a first frame (1), characterized in that: A second frame (20) is disposed on one side of the first frame (1), a third frame (24) is disposed on one side of the second frame (20), a fourth frame (27) is disposed on one side of the third frame (24), a fifth frame (31) is disposed on one side of the fourth frame (27), a sixth frame (35) is disposed on one side of the fifth frame (31), a seventh frame (38) is disposed on one side of the sixth frame (35), and an eighth frame (41) is disposed on one side of the seventh frame (38), and a plurality of positioning mechanisms (9) for positioning high-strength thin-walled steel strips are disposed at intervals between the first frame (1) to the sixth frame (35).
2. A device for ensuring uniform R angle of high-strength thin-walled square tubes according to claim 1, characterized in that: The top surface of the first frame (1) is equipped with a first vertical roller (4) for bending high-strength thin-walled strip steel, the top surface of the second frame (20) is equipped with two second vertical rollers (21), the top surface of the third frame (24) is equipped with two third vertical rollers (25), the top surface of the fourth frame (27) is equipped with two fourth vertical rollers (28), the top surface of the fifth frame (31) is equipped with two fifth vertical rollers (32), the top surface of the sixth frame (35) is equipped with two sixth vertical rollers (36), the top surface of the seventh frame (38) is equipped with two seventh vertical rollers (39), and the top surface of the eighth frame (41) is equipped with two eighth vertical rollers (42).
3. A device for ensuring uniform R angle of high-strength thin-walled square tubes according to claim 2, characterized in that: Both ends of the seventh vertical roller (39) are inclined toward the middle position at an angle of 48°, and both ends of the eighth vertical roller (42) are inclined toward the middle position at an angle of 58°.
4. The device for ensuring uniform R angle of high-strength thin-walled square tube according to claim 1, characterized in that: The positioning mechanism (9) comprises a plurality of positioning frames (10), wherein a lead screw (13) is rotatably connected inside the positioning frame (10), a first driving motor (12) for driving the lead screw (13) to rotate is fixedly mounted on one side of the positioning frame (10), a sliding block (14) is slidably connected to the outer circular wall surface of the first driving motor (12), a vertical rod (17) is rotatably connected to the top surface of the sliding block (14), the outer circular wall surface of the vertical rod (17) is connected to a first positioning roller (18) via a bearing, and a limiting member for limiting the vertical rod (17) is provided on the top surface of the vertical rod (17).
5. The device for ensuring uniform R angle of high-strength thin-walled square tube according to claim 1, characterized in that: A first pressing roller (5) for pressing down high-strength thin-walled steel strip is installed inside the first frame (1), two second pressing rollers (22) are installed inside the second frame (20), two third pressing rollers (26) are installed inside the third frame (24), two fourth pressing rollers (29) are installed inside the fourth frame (27), two fifth pressing rollers (33) are installed inside the fifth frame (31), two sixth pressing rollers (37) are installed inside the sixth frame (35), two seventh pressing rollers (40) are installed inside the seventh frame (38), and two eighth pressing rollers (43) are installed inside the eighth frame (41).
6. The device for ensuring uniform R angle of high-strength thin-walled square tube according to claim 4, characterized in that: Two threaded columns (11) for fixing the positioning frame (10) are installed on the bottom surface of the positioning frame (10).