Thermal bending equipment beneficial to stress elimination

By preheating and fixing the tubular steel components, the stress after bending is eliminated, improving the practicality and safety of the equipment and solving the problem that existing equipment cannot eliminate stress.

CN223902680UActive Publication Date: 2026-02-13CHANGSHU CHANGSHENG HEAVY IND STEEL STRUCTURE CO LTD
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Patent Information

Application Number
CN202423184418.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2026-02-13
Estimated Expiration
2034-12-24

AI Technical Summary

Technical Problem

Existing equipment cannot effectively eliminate stress after bending tubular steel components, resulting in deformation and reduced safety.

Method used

A hot bending device including a heating component and a fixing component was designed. The device changes the material microstructure by preheating the tubular steel component and then fixes it after bending to eliminate stress.

Benefits of technology

It effectively eliminates the stress in tubular steel components after bending, improves durability and safety, and avoids springback and deformation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of bending, and discloses a thermal bending device helpful for eliminating stress, which comprises four supporting legs, the outer surfaces of the four supporting legs are jointly and fixedly connected with four reinforcing rods, the upper ends of the four supporting legs are jointly and fixedly connected with a bending mechanism, and the upper part of the bending mechanism is fixedly connected with a controller. The tubular steel member can be bent through the bending mechanism, the tubular steel member can bear larger pressure and force through bending treatment, the durability and safety of the tubular steel member can be effectively improved, heat treatment can be conducted on the tubular steel member through the heating assembly before the tubular steel member is bent, the organization structure of a material can be changed, and the durability and safety of the tubular steel member can be improved. And the heating assembly is matched with the fixing assembly, after the tubular steel component is bent, the tubular steel component can be fixed, the springback phenomenon is avoided, therefore, the stress generated in the tubular steel component is eliminated, and the practicability of equipment is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bending, specifically relates to a hot bending equipment that is helpful to eliminate stress. BACKGROUND

[0002] Steel member refers to the steel plate, angle steel, channel steel, I-beam, welded or hot-rolled H-shaped steel cold bending or welded through connecting piece connection and become the steel structure combination member that can bear and transmit load, wherein the tubular steel member is common in the building steel structure house, and the steel pipe is often used to constitute the skeleton of the house, such as stair handrails, railings, beams, columns and other components. Through bending treatment, the tubular steel member can bear greater pressure and force, improve its durability and safety, for example, in some compact space, the tubular steel member needs to be bent for many times, so that after installation, it can better meet the actual use demand.

[0003] Chinese patent authorized announcement number: CN210231120U provides a pipe bending equipment, the scheme is through setting up the limit ring, make the same batch pipe away from the distance between the one end of rotating frame to rotating frame, to ensure that the same batch pipe to be bent region is consistent, reduce the possibility of error, improve pipe processing quality, through setting up height adjusting assembly, the height of support rod can be adjusted, to reduce the interference of support rod to limit ring, improve the convenience when using support rod, through setting up die, it can ensure that the one end of pipe is straight pipe shape, reduce the possibility of deformation of the one end of pipe that is not bent.

[0004] But in the specific implementation process, there are still the following defects: when the equipment bends the tubular steel member, it cannot process the tubular steel member before and after bending, which will cause the tubular steel member to deform under the action of stress after bending.

[0005] Therefore, the utility model designs a hot bending equipment that is helpful to eliminate stress to solve the above problems. UTILITY MODEL CONTENTS

[0006] In view of the above-mentioned shortcomings of prior art, the utility model provides a hot bending equipment that is helpful to eliminate stress.

[0007] To achieve the above purpose, the utility model realizes by the following technical scheme:

[0008] A hot bending equipment that is helpful to eliminate stress, four support legs are fixedly connected with four reinforcing rods on the outer surface, a bending mechanism is fixedly connected with a controller on the upper part of the bending mechanism, four support legs are fixedly connected with the bending mechanism on the upper end, and the controller is fixedly connected with the bending mechanism on the upper part.

[0009] Further, the bending mechanism comprises a support plate, the upper end of the support plate is fixedly connected with the lower end of the controller, the upper end of the support plate is fixedly connected with a vertical plate, the rear end of the vertical plate is fixedly connected with a support frame one, the upper end of the support frame one is fixedly connected with a support seat, the front end of the support plate is fixedly connected with a driving assembly, the upper end of the support plate is fixedly connected with a bending assembly, the lower end of the support plate is fixedly connected with a fixing assembly, and the upper end of the support plate is fixedly connected with a heating assembly.

[0010] Further, the driving assembly comprises a support frame two, the upper end of the support frame two is fixedly connected with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with a rack, the outer surface of the rack is slidably connected with a sliding groove, and the front end of the sliding groove is fixedly connected with a support one.

[0011] Further, the bending assembly comprises a pad, the lower end of the pad is fixedly connected with the upper end of the support plate, the upper end of the pad is fixedly connected with a rotating seat, the inner surface of the rotating seat is rotatably connected with a rotating rod, the outer surface of the rotating rod is fixedly connected with a gear, and the outer surface of the rotating rod is fixedly connected with a bending wheel.

[0012] Further, the heating assembly comprises two support twos, the lower end of each of the two support twos is fixedly connected with the upper end of the support plate, the ends close to each other of the two support twos are fixedly connected with two reinforcing plates, the front ends of the two support twos are fixedly connected with a connecting plate, the front end of the connecting plate is fixedly connected with an electric heating tube, and the front end of the connecting plate is fixedly connected with a fixed arc plate.

[0013] Further, the fixing assembly comprises a motor, the upper end of the motor is fixedly connected with the lower end of the support plate, the output end of the motor is fixedly connected with a transmission plate through a shaft coupling, the upper end of the transmission plate is fixedly connected with a bending plate, the inner surface of the bending plate is slidably connected with an arc-shaped rod, the two ends of the arc-shaped rod are fixedly connected with positioning rods, and the lower ends of the two positioning rods are fixedly connected with the upper end of the support plate.

[0014] Further, the outer surface of the gear is meshingly connected with the outer surface of the rack.

[0015] Further, the rear end of the support frame two is fixedly connected with the front end of the vertical plate, the lower end of the support one is fixedly connected with the upper end of the support plate, and the lower end of the support plate is fixedly connected with the upper end of the four supporting legs. Advantages

[0016] (1) The bending mechanism can bend the tubular steel member, so that the pipeline can withstand greater pressure and force, and effectively improve the durability and safety.

[0017] (2) The scheme can heat the tubular steel member before bending, and can change the material structure to eliminate the stress generated by bending.

[0018] (3) The scheme can fix the tubular steel member after bending, avoid the springback phenomenon, eliminate the stress generated in the tubular steel member, and improve the practicability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 It is the overall structure schematic diagram of the present application;

[0021] Figure 2 It is the bending mechanism schematic diagram of the present application;

[0022] Figure 3 It is the driving assembly schematic diagram of the present application;

[0023] Figure 4 It is the bending assembly schematic diagram of the present application;

[0024] Figure 5 It is the heating assembly schematic diagram of the present application;

[0025] Figure 6 It is the fixing assembly schematic diagram of the present application.

[0026] The numbers in the drawings respectively represent:

[0027] 1, support leg; 2, reinforcing rod; 3, bending mechanism; 31, support plate; 32, vertical plate; 33, support frame one; 34, support seat; 35, driving assembly; 351, support frame two; 352, hydraulic cylinder; 353, rack; 354, sliding groove; 355, support one; 36, bending assembly; 361, cushion block; 362, rotating seat; 363, rotating rod; 364, gear; 365, bending wheel; 37, fixing assembly; 371, motor; 372, transmission plate; 373, bending plate; 374, arc rod; 375, positioning rod; 38, heating assembly; 381, support two; 382, reinforcing plate; 383, connecting plate; 384, electric heating tube; 385, fixed arc plate; 4, controller. DETAILED DESCRIPTION

[0028] The technical solutions and advantages of the utility model will be more apparent through the following description of the embodiments of the utility model with reference to the drawings. Obviously, the described embodiments are some but not all of the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by persons of ordinary skill in the art without creative work fall within the scope of the utility model.

[0029] The utility model will be further described in connection with the embodiments.

[0030] In some embodiments, referring to the drawings attached Figures 1-6 A hot bending equipment that helps to eliminate stress, including four support legs 1, four support legs 1 outer surface is fixedly connected with four reinforcing bars 2, four support legs 1 upper end is fixedly connected with bending mechanism 3, and bending mechanism 3 upper part is fixedly connected with controller 4.

[0031] In the utility model embodiment, the stability of the equipment when in use is guaranteed by four support legs 1 and four reinforcing bars 2, and the bending mechanism 3 is supported, and the bending mechanism 3 is controlled by controller 4, so that the tubular steel member can be bent quickly to improve its durability and safety.

[0032] In some embodiments, as shown in Figures 2-6 As a preferred embodiment of the utility model, the bending mechanism 3 includes support plate 31, the lower end of support plate 31 is fixedly connected with the upper end of four support legs 1, the upper end of support plate 31 is fixedly connected with the lower end of controller 4, the upper end of support plate 31 is fixedly connected with vertical plate 32, the rear end of vertical plate 32 is fixedly connected with support frame one 33, the upper end of support frame one 33 is fixedly connected with support seat 34, the front end of support plate 31 is fixedly connected with driving assembly 35, the upper end of support plate 31 is fixedly connected with bending assembly 36, the lower end of support plate 31 is fixedly connected with fixed assembly 37, and the upper end of support plate 31 is fixedly connected with heating assembly 38.

[0033] Driving assembly 35 includes support frame two 351, the rear end of support frame two 351 is fixedly connected with the front end of vertical plate 32, the upper end of support frame two 351 is fixedly connected with hydraulic cylinder 352, the output end of hydraulic cylinder 352 is fixedly connected with rack 353, rack 353 outer surface is slidably connected with sliding groove 354, the front end of sliding groove 354 is fixedly connected with support one 355, and the lower end of support one 355 is fixedly connected with the upper end of support plate 31.

[0034] The bending assembly 36 comprises a cushion block 361, the lower end of the cushion block 361 is fixedly connected with the upper end of the supporting plate 31, the upper end of the cushion block 361 is fixedly connected with a rotating seat 362, the inner surface of the rotating seat 362 is rotatably connected with a rotating rod 363, the outer surface of the rotating rod 363 is fixedly connected with a gear 364, the outer surface of the gear 364 is meshingly connected with the outer surface of the gear rack 353, and the outer surface of the rotating rod 363 is fixedly connected with a bending wheel 365.

[0035] The heating assembly 38 comprises two supports two 381, the lower end of each of the two supports two 381 is fixedly connected with the upper end of the supporting plate 31, the end close to each other of the two supports two 381 is commonly fixedly connected with two reinforcing plates 382, the front end of the two supports two 381 is commonly fixedly connected with a connecting plate 383, the front end of the connecting plate 383 is fixedly connected with an electric heating pipe 384, and the front end of the connecting plate 383 is fixedly connected with a fixed arc plate 385.

[0036] The fixing assembly 37 comprises a motor 371, the upper end of the motor 371 is fixedly connected with the lower end of the supporting plate 31, the output end of the motor 371 is fixedly connected with a transmission plate 372 through a shaft coupling, the upper end of the transmission plate 372 is fixedly connected with a bending plate 373, the inner surface of the bending plate 373 is slidably connected with an arc-shaped rod 374, the two ends of the arc-shaped rod 374 are fixedly connected with positioning rods 375, and the lower end of each of the two positioning rods 375 is fixedly connected with the upper end of the supporting plate 31.

[0037] In the embodiment of the utility model, the tubular steel member needing to be bent is put into the inner surface of the support seat 34, and is pushed forward from one end, so that the pipe body passes through the electric heating pipe 384 and the fixed arc plate 385 and reaches the inner surface of the bending plate 373, so that the pipe section needing to be bent is inside the electric heating pipe 384, at this time, the controller 4 is used to control the electric heating pipe 384 to heat the pipe section, the tubular steel member is heat treated, the organizational structure of the tubular steel member is changed, so that the stress generated by bending is eliminated, after heating, the tubular steel member is continuously pushed forward, so that the heated part is located on the outer surface of the bending wheel 365, at this time, the controller 4 is used to control the motor 371 to start, and the transmission plate 372 rotates together with the bending plate 373 under the action of the motor 371, the bending plate 373 slides along the outer surface of the arc-shaped rod 374 when rotating, and gradually bends the tubular steel member, when the bending plate 373 rotates to the final point, at this time, the tubular steel member is bent to 90 °, and the two sides of the bent part of the tubular steel member are fixed under the pipe body action of the fixed arc plate 385 and the bending plate 373, so that the rebound and outward warping phenomenon can be effectively avoided, so that the stress generated in the tubular steel member is eliminated, at this time, the controller 4 is used to control the hydraulic cylinder 352 to start, and the rack 353 slides along the inner surface of the sliding groove 354 under the action of the hydraulic cylinder 352, the rack 353 drives the gear 364 to rotate when sliding, the gear 364 rotates and drives the rotating rod 363 located on the inner surface thereof to rotate on the inner surface of the rotating seat 362, the rotating rod 363 rotates and drives the bending wheel 365 to rotate, so that the bending wheel 365 is used to roll the bent part which has not cooled down, so that the bent part is smoother, the bending quality is improved, and the stress of the tubular steel member can be further eliminated, after the bent part is completely cooled by rolling, the controller 4 is used to control the motor 371 to reverse, so that the bending plate 373 no longer fixes the tubular steel member, at this time, the bent tubular steel member can be taken out, and the next tubular steel member is replaced to continue bending.

[0038] It should be noted that the specific installation method, circuit connection mode, oil connection mode and control method of the controller 4, the motor 371, the hydraulic cylinder 352 and the electric heating pipe 384 in the utility model are all conventional designs, and the utility model will not be described in detail.

[0039] Working principle: when the device needs to be used to bend the tubular steel member, the tubular steel member needing to be bent is put into the inner surface of the support seat 34 and is pushed forward, so that the pipe body passes through the electric heating pipe 384 and the fixed arc plate 385 and reaches the inner surface of the bending plate 373, so that the pipe section needing to be bent is inside the electric heating pipe 384, at this time, the controller 4 is used to control the electric heating pipe 384 to heat the pipe section, the tubular steel member is heat treated, the organizational structure of the tubular steel member is changed, so that the stress generated by bending is eliminated.

[0040] After heating is completed, the tubular steel member is continuously pushed forward so that the heated part is located on the outer surface of the bending wheel 365, at this time the controller 4 is used to control the motor 371 to start, and the transmission plate 372 drives the bending plate 373 to rotate under the action of the motor 371, the bending plate 373 slides along the outer surface of the arc-shaped rod 374 when rotating, and gradually bends the tubular steel member, when the bending plate 373 rotates to the final point, the tubular steel member is bent to 90° at this time, and the two sides of the bent tubular steel member are fixed under the action of the fixed arc plate 385 and the pipe body of the bending plate 373, which can effectively avoid the rebound and outward buckling phenomenon, thereby eliminating the stress generated in the tubular steel member.

[0041] The controller 4 is used to control the hydraulic cylinder 352 to start, and the rack 353 slides along the inner surface of the sliding groove 354 under the action of the hydraulic cylinder 352, the rack 353 drives the gear 364 to rotate when sliding, the gear 364 rotates to drive the rotating rod 363 located on the inner surface thereof to rotate in the inner surface of the rotating seat 362, the rotating rod 363 rotates to drive the bending wheel 365 to rotate, so that the bending wheel 365 is used to roll the unbent part after cooling, so that the bending part is smoother, which can further eliminate the stress of the tubular steel member, and the bending quality is improved, after the bending part is completely cooled, the controller 4 is used to control the motor 371 to reverse, so that the bending plate 373 no longer fixes the tubular steel member, at this time the bent tubular steel member can be taken out, and the next tubular steel member is replaced to continue bending.

[0042] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A hot bending apparatus that helps to eliminate stress, comprising four supporting legs (1), characterized in that: Four reinforcing rods (2) are fixedly connected to the outer surfaces of the four supporting legs (1), and a bending mechanism (3) is fixedly connected to the upper ends of the four supporting legs (1).

2. The thermal bending apparatus for facilitating stress relief according to claim 1, wherein: The bending mechanism (3) comprises a supporting plate (31), the upper end of the supporting plate (31) is fixedly connected with the lower end of the controller (4), the upper end of the supporting plate (31) is fixedly connected with a vertical plate (32), the rear end of the vertical plate (32) is fixedly connected with a supporting frame one (33), the upper end of the supporting frame one (33) is fixedly connected with a supporting seat (34), the front end of the supporting plate (31) is fixedly connected with a driving assembly (35), the upper end of the supporting plate (31) is fixedly connected with a bending assembly (36), the lower end of the supporting plate (31) is fixedly connected with a fixing assembly (37), and the upper end of the supporting plate (31) is fixedly connected with a heating assembly (38).

3. The thermal bending apparatus for facilitating stress relief according to claim 2, wherein: The driving assembly (35) comprises a supporting frame two (351), the upper end of the supporting frame two (351) is fixedly connected with a hydraulic cylinder (352), the output end of the hydraulic cylinder (352) is fixedly connected with a rack (353), the outer surface of the rack (353) is slidably connected with a sliding groove (354), and the front end of the sliding groove (354) is fixedly connected with a support one (355).

4. The thermal bending apparatus for facilitating stress relief according to claim 3, wherein: The bending assembly (36) comprises a cushion block (361), the lower end of the cushion block (361) is fixedly connected with the upper end of the supporting plate (31), the upper end of the cushion block (361) is fixedly connected with a rotating seat (362), the inner surface of the rotating seat (362) is rotatably connected with a rotating rod (363), the outer surface of the rotating rod (363) is fixedly connected with a gear (364), and the outer surface of the rotating rod (363) is fixedly connected with a bending wheel (365).

5. The thermal bending apparatus to facilitate stress relief of claim 2, wherein: The heating assembly (38) comprises two support two (381), the lower end of the two support two (381) is fixedly connected with the upper end of the supporting plate (31), the two support two (381) are fixedly connected with two reinforcing plates (382) on the side close to each other, the front end of the two support two (381) is fixedly connected with a connecting plate (383), the front end of the connecting plate (383) is fixedly connected with an electric heating tube (384), and the front end of the connecting plate (383) is fixedly connected with a fixed arc plate (385).

6. The thermal bending apparatus to facilitate stress relief of claim 2, wherein: The fixing assembly (37) comprises a motor (371), the upper end of the motor (371) is fixedly connected with the lower end of the supporting plate (31), the output end of the motor (371) is fixedly connected with a transmission plate (372) through a shaft coupling, the upper end of the transmission plate (372) is fixedly connected with a bending plate (373), the inner surface of the bending plate (373) is slidably connected with an arc-shaped rod (374), the two ends of the arc-shaped rod (374) are fixedly connected with positioning rods (375), and the lower ends of the two positioning rods (375) are fixedly connected with the upper end of the supporting plate (31).

7. The thermal bending apparatus for facilitating stress relief of claim 4, wherein: The outer surface of the gear (364) is meshingly connected with the outer surface of the rack (353).

8. The thermal bending apparatus for facilitating stress relief of claim 3, wherein: The rear end of the support frame two (351) is fixedly connected with the front end of the vertical plate (32), the lower end of the support frame one (355) is fixedly connected with the upper end of the support plate (31), and the lower end of the support plate (31) is fixedly connected with the upper ends of the four supporting legs (1).

Citation Information

Patent Citations

  • Pipe fitting bending equipment

    CN210231120U