A device for detecting bending defects in aluminum curtain wall panels

Abstract

This utility model belongs to the field of metal sheet forming and processing technology, specifically disclosing a device for detecting bending defects in aluminum curtain wall panels. The device includes a workbench with a through-hole mounting groove on its end face. A bending assembly is installed within the mounting groove. A clamping assembly is located below the workbench, and a mounting base is located above the workbench. The bending assembly includes two support plates symmetrically fixed to the side walls of the mounting groove, forming a bending channel one between the two support plates. Each support plate has a downward-sloping surface on its end face away from the mounting groove, making the opening of bending channel one larger as it approaches the clamping assembly. A bending roller and a hinged bending plate are respectively installed above the two support plates, forming a bending channel two between them. This bending channel two connects with bending channel one to form a channel to be bent. This device solves the problem of aluminum sheet performance being damaged due to excessive bending defects during the bending process in current devices.

Description

Technical Field

[0001] This utility model belongs to the field of metal sheet forming and processing technology, and specifically relates to a device for detecting bending defects in aluminum curtain wall panels. Background Technology

[0002] With the rapid development of the construction industry, aluminum panels for curtain walls are widely used in the exterior decoration of high-rise buildings due to their advantages such as lightweight, corrosion resistance, and aesthetics. The bending and forming process of aluminum panels is a crucial step in curtain wall manufacturing, and its bending quality directly affects the structural strength, sealing performance, and appearance of the curtain wall. However, during the bending process, aluminum panels are prone to defects such as cracks and wrinkles due to uneven material ductility and stress concentration. If these defects are not detected and adjusted in time, they will lead to the scrapping of finished products or a decline in performance.

[0003] Traditional aluminum sheet bending defect detection mainly relies on manual visual inspection or post-processing sampling, which has the following technical drawbacks:

[0004] Inspection lag: Manual inspection must be carried out after bending, which makes it impossible to monitor the processing in real time, resulting in defective aluminum plates flowing into subsequent processes;

[0005] Subjective error: Human judgment is easily limited by experience, resulting in low accuracy in identifying minute cracks or wrinkles;

[0006] Lack of adjustment capability: Most existing bending equipment adopts a fixed clamping structure, with a single bending path. It cannot dynamically adjust the position of the bending area when defects are detected, resulting in a high defect rate.

[0007] In recent years, although optical inspection technology has been gradually applied to the field of materials processing, existing solutions mostly focus on static surface inspection and lack a linkage control mechanism with bending processes. For example, some equipment measures the bending angle through laser displacement sensors, but cannot directly provide feedback on the internal stress distribution of the material or surface defect information, and the adjustment methods are limited to resetting processing parameters, which is inefficient.

[0008] Therefore, a bending defect detection device for aluminum curtain wall panels is proposed to address the problem of aluminum panel performance being damaged due to excessive bending defects during the bending process of current devices. Utility Model Content

[0009] The purpose of this invention is to provide a device for detecting bending defects in aluminum curtain wall panels, in order to solve the problems mentioned in the background art.

[0010] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a curtain wall aluminum panel bending defect detection device, including a workbench, an installation groove is formed through the end face of the workbench, a bending component is arranged in the installation groove, a clamping component is arranged below the workbench, and an installation seat is arranged above the workbench;

[0011] The bending assembly includes two support plates symmetrically fixed to the two side walls of the mounting groove, forming a bending channel one between the two support plates. Each support plate has a downward slope on its side end face away from the mounting groove, so that the bending channel one is larger as it gets closer to the clamping assembly.

[0012] A bending roller and a hinged bending plate are respectively installed above the two support plates. A second bending channel is formed between the bending roller and the bending plate. The second bending channel is connected to the first bending channel to form a channel to be bent.

[0013] A cylinder is hinged to the side of the bending plate away from the bending roller, and the other end of the cylinder is hinged to the inner wall of the mounting base.

[0014] The clamping assembly includes a fixing block fixed to the worktable, the fixing block is rotatably connected to cylinder two and an adjusting plate, the adjusting plate has a longitudinal sliding groove, an L-shaped clamping seat is slidably connected in the sliding groove, and the output end of cylinder two is fixed to the clamping seat;

[0015] The clamping seat sidewall is slidably connected to the clamping plate, and the distance between the clamping plate and the clamping seat is adjusted by linear drive.

[0016] This utility model further illustrates that an arc-shaped mounting groove is opened on the side of the bending roller near the bending plate, a light emitter is installed in the arc-shaped mounting groove, several detection holes are opened through the groove wall of the arc-shaped mounting groove, a second sliding groove is opened horizontally above the arc-shaped mounting groove, and a light refraction surface is connected in the second sliding groove by a spring. In the initial state, part of the light refraction surface is exposed outside the bending roller.

[0017] The present invention further explains that the fixing block is connected to the adjusting plate bearing via a connecting rod, the support under the workbench is hinged to cylinder three, and the other end of cylinder three is hinged to the end of the clamping seat away from the clamping plate.

[0018] This utility model further explains that the arc-shaped mounting groove is symmetrically opened based on the horizontal plane of the center of the bending roller, and the light refraction surface and the output end of the light emitter are arranged symmetrically based on the horizontal plane of the center.

[0019] The present invention further explains that the detection holes are evenly distributed along the circumference of the arc-shaped mounting groove, and the sliding grooves penetrate the bending roller through the bending plate.

[0020] This utility model further explains that the bending channel one and the bending channel two constitute the aluminum plate bending path, and the bending plate is driven by the cylinder one to rotate toward the bending roller to compress and bend the aluminum plate.

[0021] The present invention further explains that the clamping seat is driven by cylinder two to move longitudinally within sliding groove one, and the clamping plate is driven by linear motion to move laterally along the side wall of the clamping seat.

[0022] The present invention further explains that the light refraction surface is elastically connected to the sliding groove by a spring, and in the initial state, it is partially exposed outside the bending roller to receive reflected light.

[0023] Compared with existing technologies, the beneficial effects achieved by this invention are as follows: This invention monitors defects such as cracks and wrinkles in the bending area by reflecting light, replacing traditional manual visual inspection, realizing online quality inspection during processing, and improving the detection response speed. When the reflectivity approaches the threshold A, the system automatically triggers the clamping components to adjust, preventing defects from expanding and thus improving the finished product qualification rate. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the clamping component structure according to an embodiment of the present utility model;

[0027] Figure 3 This is a schematic diagram of the bending roller structure according to an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the internal structure of an embodiment of the present utility model;

[0029] Figure 5 This is an embodiment of the present utility model. Figure 4 A magnified view of region A;

[0030] In the diagram: 1. Workbench; 101. Mounting slot; 2. Bending assembly; 201. Support plate; 202. Bending channel one; 203. Bending roller; 204. Bending plate; 205. Bending channel two; 206. Arc-shaped mounting slot; 207. Detection hole; 208. Sliding slot two; 209. Spring; 210. Light refraction surface; 211. Emitter mounting slot; 212. Light emitter; 3. Clamping assembly; 301. Fixing block; 302. Cylinder two; 303. Adjusting plate; 304. Sliding slot one; 305. Clamping seat; 306. Clamping plate; 307. Linear drive; 308. Connecting rod; 309. Cylinder three; 4. Mounting seat; 401. Cylinder one. Detailed Implementation

[0031] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] Please see Figure 1-5 The present invention provides a technical solution: a device for detecting bending defects in aluminum curtain wall panels, comprising a workbench 1.

[0033] like Figure 1 As shown, a mounting groove 101 is provided through the end face of the workbench 1. A bending component 2 is provided in the mounting groove 101. The bending component 2 is used to bend aluminum plates. A clamping component 3 is provided below the workbench 1. The clamping component 3 is located below the bending component 2 and is used to clamp aluminum plates. A mounting base 4 is also provided above the workbench 1.

[0034] like Figure 4 As shown, the bending assembly 2 includes two support plates 201, which are respectively fixed on the two side walls of the mounting groove 101. The bending channel 202 is formed between the two support plates 201. The end face of any support plate 201 away from the mounting groove 101 has a downward slope, so that the opening of the bending channel 202 is larger as it gets closer to the clamping assembly 3, so that the aluminum plate can be adjusted in angle when bending.

[0035] A bending roller 203 and a bending plate 204 are respectively provided above the two support plates 201. The bending plate 204 is located on the support plate 201 with a slope and is hinged. The bending roller 203 is fixed on the other support plate 201. A second bending channel 205 is formed between the bending roller 203 and the bending plate 204. The second bending channel 205 communicates with the first bending channel 202 to form a channel for bending the aluminum plate.

[0036] A cylinder 401 is hinged to the side of the bending plate 204 away from the bending roller 203. The cylinder 401 is located inside the mounting base 4, and the other end of the cylinder 401 is hinged to the inner wall of the mounting base 4.

[0037] When it is necessary to bend the aluminum plate, the bending plate 204 is driven to rotate towards the bending roller 203 by the cylinder 401, so that the aluminum plate is attached and bent along the outer diameter of the bending roller 203.

[0038] like Figure 2 and Figure 4As shown, the clamping assembly 3 includes a fixing block 301. One side of the fixing block 301 is fixed to the worktable 1, and a cylinder 302 is rotatably connected to the other side of the fixing block 301. An adjusting plate 303 is rotatably connected below the fixing block 301. A sliding groove 304 is longitudinally formed on the adjusting plate 303. A clamping seat 305 is slidably connected in the sliding groove 304. The output end of the cylinder 302 is fixed above the clamping seat 305 and is used to drive the clamping seat 305 to move longitudinally in the sliding groove 304. The clamping seat 305 is an L-shaped plate. A clamping plate 306 parallel to the side wall of the clamping seat 305 is slidably connected to the clamping seat 305. A linear drive 307 is provided in the clamping plate 306 away from the clamping seat 305. The distance between the clamping plate 306 and the clamping seat 305 is adjusted by the linear drive 307 to clamp the aluminum plate.

[0039] When it is necessary to bend the aluminum panel of the curtain wall, the aluminum panel is first passed through the bending channel 205 between the bending plate 204 and the bending roller 203, and one end of it contacts the clamping seat 305. Then, the clamping plate 306 is driven to move towards the aluminum panel by the linear drive 307 to fix the aluminum panel between the clamping seat 305 and the clamping plate 306.

[0040] The fixed block 301 is connected to a connecting rod 308 on the side away from the cylinder 302, and the other end of the connecting rod 308 is connected to the bearing of the adjusting plate 303.

[0041] A cylinder 309 is hinged to the support below the workbench 1, and the other end of the cylinder 309 is hinged to the end of the clamping seat 305 away from the clamping plate 306.

[0042] Function: Bending defects can damage the performance of aluminum sheets. Therefore, when the bending line in the bending area is too large, the cylinder 302 is activated to move the clamping seat 305 towards the bending roller 203. The clamping seat 305 lifts the aluminum sheet upward, thereby changing the position of the bending area and allowing the aluminum sheet to be bent to the required angle without affecting its performance.

[0043] like Figure 3 - Figure 5 As shown, the bending roller 203 has an arc-shaped mounting groove 206 on the side near the bending plate 204. The arc-shaped mounting groove 206 is symmetrically opened based on the horizontal center plane of the bending roller 203 and has the same curvature as the bending roller 203.

[0044] The arc-shaped mounting groove 206 is provided with a plurality of detection holes 207 extending through the bending plate 204. The plurality of detection holes 207 communicate with the arc-shaped mounting groove 206. A second sliding groove 208 is provided horizontally above the arc-shaped mounting groove 206. The second sliding groove 208 extends through the bending roller 203 toward the bending plate 204. A spring 209 is fixed at the bottom of the second sliding groove 208. A light refraction surface 210 is fixed at the other end of the spring 209. In the initial state, the light refraction surface 210 is partially exposed outside the bending roller 203. A transmitter mounting groove 211 is provided below the arc-shaped mounting groove 206. A light emitter 212 is provided in the transmitter mounting groove 211. The output end of the light emitter 212 is symmetrical to the light refraction surface 210 based on the central horizontal plane.

[0045] During the bending process, bending defects such as cracks or wrinkles may occur in the bending area. Excessive bending defects can affect the performance of the aluminum sheet. Therefore, during the bending process, the light emitter 212 emits light, which illuminates the bending area of ​​the aluminum sheet and is reflected onto the light refraction surface 210. By detecting the reflectivity of the light reflected onto the light refraction surface 210, bending defects in the bending area are detected.

[0046] Working principle: When it is necessary to bend the aluminum panel of the curtain wall, the aluminum panel is first passed through the bending channel 205 between the bending plate 204 and the bending roller 203, and one end of it contacts the clamping seat 305. The clamping plate 306 is then driven by the linear drive 307 to move towards the aluminum panel and fix the aluminum panel between the clamping seat 305 and the clamping plate 306.

[0047] By starting the cylinder 401, the bending plate 204 is driven to rotate relative to the bending roller 203, thereby pressing the aluminum plate and causing it to bend. At this time, the area where the aluminum plate contacts the bending roller 203 is the bending area.

[0048] During the bending process, bending defects such as cracks or wrinkles may occur in the bending area. If the bending defects are too large, they will affect the performance of the aluminum plate. Therefore, during the bending process of the aluminum plate, the light emitter 212 emits light and the emitted light shines on the bending area of ​​the aluminum plate and is reflected onto the light refraction surface 210. The bending defects in the bending area are detected by detecting the reflectivity of the light reflected onto the light refraction surface 210.

[0049] The reference reflectance was measured by using a standard sample (defect-free aluminum plate) at a specific bending angle, and A was set as 80%-85% of the reference value.

[0050] When the reflectivity is greater than A, bending defects will damage the performance of the aluminum plate. Therefore, when the reflectivity of the bending area is detected to be close to A, the cylinder 302 is activated to drive the clamping seat 305 to move towards the bending roller 203. The clamping seat 305 lifts the aluminum plate upward, thereby changing the position of the bending area, so that the aluminum plate can be bent to the required angle without affecting the performance.

[0051] Since the aluminum plate has already been bent when the position of the bending area is changed, and in order to ensure that the center of the bending point of the aluminum plate is in the same position as the bending roller 203, the angle below the bending roller 203 needs to be adjusted accordingly when the bending area of ​​the aluminum plate is changed. By starting the cylinder 309, the cylinder 309 drives the adjusting plate 303 to rotate relative to the fixed block 301 through the clamping seat 305. During the rotation, the bending area is adjusted in real time by the cylinder 202 until it is bent to the required angle.

[0052] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for detecting bending defects in aluminum curtain wall panels, comprising a workbench (1), characterized in that: The end face of the workbench (1) has a through mounting groove (101), a bending component (2) is provided in the mounting groove (101), a clamping component (3) is provided below the workbench (1), and a mounting base (4) is provided above the workbench (1). The bending assembly (2) includes two support plates (201) symmetrically fixed to the two side walls of the mounting groove (101), forming a bending channel (202) between the two support plates (201). Each support plate (201) has a downward slope on its side face away from the mounting groove (101), so that the bending channel (202) is larger as it gets closer to the clamping assembly (3). A bending roller (203) and a hinged bending plate (204) are respectively installed above the two support plates (201). A second bending channel (205) is formed between the bending roller (203) and the bending plate (204). The second bending channel (205) is connected to the first bending channel (202) to form a channel to be bent. A cylinder (401) is hinged to the side of the bending plate (204) away from the bending roller (203), and the other end of the cylinder (401) is hinged to the inner wall of the mounting base (4). The clamping assembly (3) includes a fixing block (301) fixed to the worktable (1), the fixing block (301) is rotatably connected to cylinder two (302) and adjusting plate (303), the adjusting plate (303) has a longitudinal sliding groove (304), an L-shaped clamping seat (305) is slidably connected in the sliding groove (304), and the output end of cylinder two (302) is fixed to the clamping seat (305); The clamping seat (305) is slidably connected to the clamping plate (306) on its side wall, and the clamping plate (306) is adjusted to be spaced from the clamping seat (305) by a linear drive (307).

2. The device for detecting bending defects in aluminum curtain wall panels according to claim 1, characterized in that: The bending roller (203) has an arc-shaped mounting groove (206) on the side near the bending plate (204). A light emitter (212) is installed in the arc-shaped mounting groove (206). Several detection holes (207) are opened through the groove wall of the arc-shaped mounting groove (206). A second sliding groove (208) is opened horizontally above the arc-shaped mounting groove (206). A light refraction surface (210) is connected to the second sliding groove (208) by a spring (209). In the initial state, part of the light refraction surface (210) is exposed outside the bending roller (203).

3. The device for detecting bending defects in aluminum curtain wall panels according to claim 2, characterized in that: The fixing block (301) is connected to the adjusting plate (303) bearing via the connecting rod (308). The support under the workbench (1) is hinged to the cylinder three (309). The other end of the cylinder three (309) is hinged to the end of the clamping seat (305) away from the clamping plate (306).

4. The curtain wall aluminum panel bending defect detection device according to claim 3, characterized in that: The arc-shaped mounting groove (206) is symmetrically opened based on the center horizontal plane of the bending roller (203), and the light refraction surface (210) and the output end of the light emitter (212) are arranged symmetrically based on the center horizontal plane.

5. The curtain wall aluminum panel bending defect detection device according to claim 4, characterized in that: The detection holes (207) are evenly distributed around the arc-shaped mounting groove (206), and the sliding groove (208) passes through the bending roller (203) towards the bending plate (204).

6. The device for detecting bending defects in aluminum curtain wall panels according to claim 5, characterized in that: The bending channel one (202) and the bending channel two (205) constitute the aluminum plate bending path. The bending plate (204) is driven by the cylinder one (401) to rotate towards the bending roller (203) to press the aluminum plate to bend.

7. The curtain wall aluminum panel bending defect detection device according to claim 6, characterized in that: The clamping seat (305) is driven by cylinder two (302) to move longitudinally in sliding groove one (304), and the clamping plate (306) is driven by linear drive (307) to move laterally along the side wall of the clamping seat (305).

8. The device for detecting bending defects in aluminum curtain wall panels according to claim 7, characterized in that: The light refraction surface (210) is elastically connected to the sliding groove (208) via a spring (209), and in the initial state, it is partially exposed outside the bending roller (203) to receive reflected light.

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