Bending equipment for evaluating welding seam performance indexes

By designing support components and limit-controlled loading bend components, the problem that existing equipment cannot adapt to small-sized thin-wall structural samples is solved, and efficient and accurate evaluation of weld performance indicators is achieved.

CN223210264UActive Publication Date: 2025-08-12CHINA IRON & STEEL RESEARCH INSTITUTE GROUP CO LTD
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Patent Information

Application Number
CN202422414815.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-08
Publication Date
2025-08-12
Estimated Expiration
2034-10-08

AI Technical Summary

Technical Problem

The existing bending equipment is huge in size and cannot be used for small-sized thin-walled specimens, and the human-computer interactive interface design is cumbersome, which reduces the bending efficiency of small-sized specimens.

Method used

A bending device including a support assembly, a motor and a load bending assembly is designed. The load bending assembly consists of a coupling, a lead screw, a slide table, a tool load table, a bending head and a bending mold table. The lead screw drives the sliding table and a bending head to move through the motor, and combines the limit control assembly to prevent excessive bending, and is suitable for small-sized thin-walled structural samples.

Benefits of technology

It realizes simple operation and high-precision bending of small-sized thin-walled structural specimens, adapts to different bending requirements, prevents damage to equipment and specimens, and improves bending efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to bending equipment for evaluating welding seam performance indexes, belongs to the technical field of bending equipment, and aims to solve the technical problem that bending equipment in the prior art is large in size and not suitable for samples of small-size thin-wall structures. The bending equipment for evaluating the performance indexes of the welding seam comprises a supporting assembly, a motor and a loading and bending assembly, the motor is connected with the loading and bending assembly, and the loading and bending assembly is arranged on the supporting assembly; the loading and bending assembly comprises a coupler, a lead screw, a sliding table, a tool carrying table, a bending and pressing tool bit and a bending die table, the lead screw is connected with the motor through the coupler, a threaded sleeve is arranged on the lead screw, and the threaded sleeve is connected with the sliding table. The device is simple and convenient to operate and simple in structure, and can be suitable for thin-wall structure samples with small sizes.
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Description

Technical Field

[0001] The utility model relates to the technical field of bending equipment, in particular to a bending equipment for evaluating weld performance indicators. Background Art

[0002] Bending equipment usually uses mechanical force or hydraulic power to make the upper and lower dies apply pressure to the metal sheet to bend it according to a specific angle and shape.

[0003] Bending equipment in the existing technology is generally aimed at large plates, pipes and bars, etc., and mainly adopts a hydraulic drive system to push the workbench up and down through the hydraulic cylinder to achieve bending of metal materials.

[0004] When performing bending tests on specimens, the bend must occur at the center of the specimen's weld. Existing equipment is bulky and unsuitable for small, thin-walled specimens, failing to meet test-level bending accuracy. Furthermore, the complex human-machine interface design of the bending machine reduces the efficiency of bending simple specimens. Utility Model Content

[0005] In view of the above analysis, the present invention aims to provide a bending device for evaluating weld performance indicators, so as to solve the technical problem that the bending device in the prior art is large in size and not suitable for specimens with small-sized thin-walled structures.

[0006] The purpose of this utility model is mainly achieved through the following technical solutions:

[0007] A bending device for evaluating weld performance indicators, comprising a support assembly, a motor, and a loading bending assembly, wherein the motor is connected to the loading bending assembly, and the loading bending assembly is arranged on the support assembly;

[0008] The loading and bending assembly includes a coupling, a lead screw, a slide, a tool carrier, a bending and pressing tool head, and a bending die. The lead screw is connected to the motor through the coupling. A threaded sleeve is provided on the lead screw, and the threaded sleeve is connected to the slide.

[0009] The tool carrier is arranged on the slide, the tool carrier is connected to the bending and pressing tool head, the bending die table is connected to the supporting assembly, and the bending die table cooperates with the bending and pressing tool head so that the bending and pressing tool head can bend the sample placed on the bending die table.

[0010] Furthermore, a first slope surface, a second slope surface and a center arc surface are provided on the end surface of the bending and pressing tool head that contacts the sample.

[0011] Furthermore, a bending groove is provided on the bending die table, and inclined surfaces are provided on both sides of the bending groove. The inclined surfaces are used to limit the bending angle of the sample. The position of the bending groove cooperates with the bending and pressing tool head so that the bending and pressing tool head can squeeze the sample into the bending groove.

[0012] Furthermore, the support assembly includes a base plate and a support frame, the top of the support frame is connected to the motor, and the bottom of the support frame is connected to the base plate.

[0013] Furthermore, a slide rail is provided on the support frame, and the slide rail cooperates with the slide platform so that the slide platform can slide along the slide rail.

[0014] Furthermore, the support assembly further includes a support rib, which is connected to the base plate and can provide support for the support frame.

[0015] Furthermore, the bending die table is detachably connected to the base plate.

[0016] Furthermore, the tool carrier is detachably connected to the bending and pressing tool head.

[0017] Furthermore, it also includes a limit control component, which includes a position sensor, an upper limit baffle, a lower limit baffle and a controller.

[0018] Furthermore, the upper limit baffle is arranged on the end surface of the slide away from the bending die table, and the lower limit baffle is arranged on the end surface of the slide close to the bending die table.

[0019] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0020] (1) The bending device for evaluating weld performance indicators of the present invention is configured to bend a specimen by setting a loading bending assembly so that the bending and pressing head can move up and down under the drive of a motor. The device is easy to operate and has a simple structure, and can be applied to thin-walled specimens of smaller size.

[0021] (2) The tool carrier is detachably connected to the bending tool head, and the bending die table is detachably connected to the base plate, so that the bending equipment can easily replace the bending tool head and the bending die table according to the bending requirements, so that the bending tool head and the bending die table can adapt to different bending requirements of the sample;

[0022] (3) The utility model sets a limit control component, sets a position sensor, an upper limit baffle and a lower limit baffle so that the controller can control the motor brake according to the position of the slide, thereby preventing the slide from being lifted too much and causing damage to the equipment or the slide from being moved down too much and causing excessive bending of the sample, thereby causing damage to the sample.

[0023] In the present invention, the above-mentioned technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of the present invention will be described in the following content, and some advantages will become apparent from the description or be understood through practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the text and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. Throughout the accompanying drawings, the same reference symbols denote the same components.

[0025] Figure 1 This is a schematic diagram of the overall structure of the bending equipment used to evaluate weld performance indicators of the present invention;

[0026] Figure 2 This is a longitudinal cross-sectional view of the bending equipment used to evaluate weld performance indicators of the present utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the connection between the slide and the slide rail of the utility model;

[0028] Figure 4 This is a structural diagram of the bending and pressing cutter head of the present utility model;

[0029] Figure 5 This is a structural diagram of the bending die table of the present invention.

[0030] Reference numerals:

[0031] 1-Support assembly; 11-Base plate; 12-Support frame; 121-Slide rail; 13-Support rib; 2-Motor; 3-Loading bending assembly; 31-Coupling; 32-Lead screw; 321-Threaded sleeve; 33-Slide; 34-Tool carrier; 35-Bending tool head; 351-First slope; 352-Second slope; 353-Center arc surface; 36-Bending die; 361-Inclined surface; 362-Bending groove; 4-Limit control assembly; 41-Position sensor; 42-Upper limit baffle; 43-Lower limit baffle; DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, and are not used to limit the scope of the present invention.

[0033] A specific embodiment of the present utility model discloses a bending device for evaluating weld performance indicators, such as Figure 1As shown, it includes a support component 1, a motor 2 and a loading and bending component 3. The motor 2 is connected to the loading and bending component 3. The loading and bending component 3 is arranged on the support component 1. The motor 2 can control the loading and bending component 3 to load the sample and bend the sample.

[0034] like Figures 1 and 2 As shown, the support assembly 1 includes a base plate 11 and a support frame 12. The top of the support frame 12 is connected to the motor 2, and the bottom of the support frame 12 is connected to the base plate 11. Preferably, as Figure 2 As shown, the support assembly 1 further includes a support rib 13 , which is connected to the bottom plate 11 . The support rib 13 can provide support for the support frame 12 and increase the balance and stability of the bending device.

[0035] like Figures 1 to 3 As shown, the loading and bending assembly 3 includes a coupling 31, a lead screw 32, a slide 33, a tool carrier 34, a bending and pressing cutter head 35, and a bending die 36. The lead screw 32 is connected to the motor 2 via the coupling 31, so that the motor 2 can drive the lead screw 32 to achieve forward and reverse rotation. For example, the motor 2 is a DC speed motor. A threaded sleeve 321 is provided on the lead screw 32, and the threaded sleeve 321 is connected to the slide 33, so that the slide 33 moves up and down with the forward and reverse rotation of the lead screw 32; a tool carrier 34 is provided on the slide 33, and the tool carrier 34 is connected to the bending and pressing cutter head 35, so that the bending and pressing cutter head 35 moves up and down with the slide 33; a bending die 36 is connected to the base plate 11, and the bending die 36 cooperates with the bending and pressing cutter head 35. When a sample is placed on the bending die 36, the bending and pressing cutter head 35 can bend the sample.

[0036] Preferably, Figure 3 As shown, a slide rail 121 is provided on the support frame 12 , and the slide rail 121 cooperates with the slide 33 so that the slide 33 can slide along the slide rail 121 , thereby increasing the stability of the slide 33 when it moves up and down with the lead screw 32 .

[0037] Preferably, the tool carrier 34 and the bending and pressing tool head 35 are detachably connected, such as by screws, so that the bending and pressing tool head 35 can be easily replaced according to bending requirements.

[0038] Preferably, the bending die table 36 is detachably connected to the base plate 11 , such as by bolts, so that the bending die table 36 can be easily replaced according to bending requirements.

[0039] like Figure 4 As shown, the end surface of the bending and pressing tool 35 that contacts the specimen is provided with a first slope 351, a second slope 352, and a central arc surface 353. When the specimen is bent, the central arc surface 353 contacts and squeezes the specimen, causing it to bend along the first slope 351 and the second slope 352, thereby reducing shear damage to the specimen during the bending impact and reducing local stress concentration.

[0040] like Figure 5 As shown, a bending groove 362 is provided on the bending die 36, and inclined surfaces 361 are provided on both sides of the bending groove 362. The position of the bending groove 362 cooperates with the bending and pressing head 35 so that the bending and pressing head 35 can squeeze the sample into the bending groove 362. The inclined surface 361 is used to limit the bending angle of the sample.

[0041] Preferably, the inclined surface 361 is chamfered to avoid scratching the sample during the bending process.

[0042] Furthermore, if Figure 1 As shown, the bending equipment for evaluating weld performance indicators further includes a limit control assembly 4, which includes a position sensor 41, an upper limit stopper 42, a lower limit stopper 43, and a controller. The position sensor 41 is disposed at the top and bottom of the support frame 12, and the upper limit stopper 42 is disposed on the end surface of the slide 33 away from the bending die 36. When the upper limit stopper 43 moves to the top of the support frame 12, the position of the upper limit stopper 43 matches the position of the position sensor 41 disposed at the top of the support frame 12, allowing the position sensor 41 to recognize the position signal of the upper limit stopper 43. The lower limit stopper 43 is disposed on the end surface of the slide 33 near the bending die 36. When the lower limit stopper 43 moves to the bottom of the support frame 12, the position of the lower limit stopper 43 matches the position of the position sensor 41 disposed at the bottom of the support frame 12, allowing the position sensor 41 to recognize the position signal of the lower limit stopper 43. The position sensor 41 is electrically connected to the controller, which is in turn electrically connected to the motor 2.

[0043] When the sample is bent, the slide 33 rotates with the screw 32 and moves along the guide rail toward the bending die table 36. When the lower limit baffle 43 on the slide 33 moves to the position of the position sensor 41 at the bottom of the support frame 12, the lower limit baffle 43 cooperates with the position sensor 41, and the position sensor 41 identifies the position signal of the lower limit baffle 43 and sends it to the controller, so that the controller controls the motor 2 to stop and prevent excessive bending; when the upper limit baffle 42 on the slide 33 moves to the position of the position sensor 41 at the top of the support frame 12, the upper limit baffle 42 cooperates with the position sensor 41, and the position sensor 41 identifies the position signal of the upper limit baffle 42 and sends it to the controller, so that the controller controls the motor 2 to stop and prevent the slide 33 from being lifted excessively.

[0044] Compared with the prior art, the bending equipment for evaluating weld performance indicators of the present invention sets a loading and bending component 3 so that the bending and pressing cutter head 35 can move up and down under the drive of the motor 2, thereby bending the sample. It is easy to operate, simple in structure, and can be suitable for thin-walled structure samples with smaller sizes; the tool carrier 34 is detachably connected to the bending and pressing cutter head 35, and the bending die table 36 is detachably connected to the base plate 11, so that it is convenient to replace the bending and pressing cutter head 35 and the bending die table 36 according to the bending requirements, so that the bending and pressing cutter head 35 and the bending die table 36 can adapt to different bending requirements of the sample; the present invention sets a limit control component 4, and sets a position sensor 41, an upper limit baffle 42 and a lower limit baffle 43 so that the controller can control the braking of the motor 2 according to the position of the slide 33 to prevent the slide 33 from being lifted excessively to cause damage to the equipment or the slide 33 from being moved down excessively to cause excessive bending of the sample, thereby causing damage to the sample.

[0045] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the protection scope of the present invention.

Claims

1. A bending device for evaluating weld performance indicators, characterized in that: It comprises a support assembly (1), a motor (2) and a loading and bending assembly (3), wherein the motor (2) is connected to the loading and bending assembly (3), and the loading and bending assembly (3) is arranged on the support assembly (1); The loading and bending assembly (3) comprises a coupling (31), a lead screw (32), a slide (33), a tool carrier (34), a bending and pressing tool head (35) and a bending die (36); the lead screw (32) is connected to the motor (2) via the coupling (31); a threaded sleeve (321) is provided on the lead screw (32), and the threaded sleeve (321) is connected to the slide (33); The tool carrier (34) is arranged on the slide (33), the tool carrier (34) is connected to the bending and pressing tool head (35), the bending die platform (36) is connected to the support assembly (1), and the bending die platform (36) cooperates with the bending and pressing tool head (35) so that the bending and pressing tool head (35) can bend the sample placed on the bending die platform (36).

2. The bending device for evaluating weld performance indicators according to claim 1, characterized in that: A first slope surface (351), a second slope surface (352) and a central arc surface (353) are provided on the end surface of the bending and pressing blade head (35) that contacts the sample.

3. The bending device for evaluating weld performance indicators according to claim 1, characterized in that: A bending groove (362) is provided on the bending die table (36), and inclined surfaces (361) are provided on both sides of the bending groove (362). The inclined surfaces (361) are used to limit the bending angle of the sample. The position of the bending groove (362) cooperates with the bending and pressing tool head (35), so that the bending and pressing tool head (35) can squeeze the sample into the bending groove (362).

4. The bending device for evaluating weld performance indicators according to claim 1, characterized in that: The support assembly (1) comprises a base plate (11) and a support frame (12), wherein the top of the support frame (12) is connected to the motor (2), and the bottom of the support frame (12) is connected to the base plate (11).

5. The bending device for evaluating weld performance indicators according to claim 4, characterized in that: A slide rail (121) is provided on the support frame (12), and the slide rail (121) cooperates with the slide platform (33) so that the slide platform (33) can slide along the slide rail (121).

6. The bending device for evaluating weld performance indicators according to claim 4, characterized in that: The support assembly (1) further comprises a support rib (13), wherein the support rib (13) is connected to the base plate (11), and the support rib (13) can provide support for the support frame (12).

7. The bending device for evaluating weld performance indicators according to claim 4, characterized in that: The bending die platform (36) is detachably connected to the bottom plate (11).

8. The bending device for evaluating weld performance indicators according to claim 1, characterized in that: The tool carrier (34) is detachably connected to the bending and pressing tool head (35).

9. The bending device for evaluating weld performance indicators according to any one of claims 1 to 8, characterized in that: It also includes a limit control component (4), which includes a position sensor (41), an upper limit baffle (42), a lower limit baffle (43) and a controller.

10. The bending device for evaluating weld performance indicators according to claim 9, characterized in that: The upper limit baffle (42) is arranged on the end surface of the slide (33) away from the bending die table (36), and the lower limit baffle (43) is arranged on the end surface of the slide (33) close to the bending die table (36).