Aluminum plate bending equipment with detection structure and use method

Abstract

The present application discloses an aluminum plate bending device with a detection structure and a method for use thereof, which relates to the technical field of aluminum plate bending. The device includes a base, a mold, a bending rod, and a sensor assembly. A workbench is provided above the base; the mold is installed on the workbench, and a mold groove is provided on the upper end face of the mold; the bending rod is slidably installed on the base, and the bending rod is located above the mold groove. A first driving member that drives the bending rod to move closer to or away from the mold groove is provided on the base; the sensor assembly includes two infrared sensors, both of which are installed on the bending rod. The infrared sensors can emit and receive infrared rays, and the infrared rays emitted by the infrared sensors are irradiated on the aluminum plate. The present application has the effect of being able to detect whether the aluminum plate is qualified in a timely manner while the aluminum plate completes the bending process, so that the bending machine can re-bend and repair the unqualified aluminum plate, thereby improving the qualified rate and production efficiency of the product production.

Description

Technical Field

[0001] The present application relates to the technical field of aluminum plate bending, and in particular to an aluminum plate bending device with a detection structure and a method of use. Background Art

[0002] Aluminum plate bending machine is a type of metal processing equipment, mainly used to bend aluminum alloy plates into specific angles and shapes to meet the needs of different industries and product fields. It uses mechanical force or hydraulic pressure to perform precise bending operations on aluminum plates through specific molds and tools.

[0003] The bending machine in the prior art mainly includes a positioning component and a bending component. After the aluminum plate is positioned by the positioning component, the aluminum plate is bent by the bending component, and finally the aluminum plate is tested by a dedicated testing equipment to determine whether the aluminum plate reaches the determined curvature.

[0004] However, when the inspection equipment detects unqualified aluminum plates, the already bent aluminum plates are difficult to put into the bending machine for re-bending. Therefore, the unqualified aluminum plates need to be manually trimmed or directly discarded. Manual trimming requires additional working time, and discarding requires the bending machine to continue working to produce a sufficient amount of qualified aluminum plates. Therefore, no matter which treatment method is used, the production efficiency of qualified aluminum plates will be reduced. Summary of the Invention

[0005] The purpose of this application is to provide an aluminum plate bending device with a detection structure and a method of use, which can detect whether the aluminum plate is qualified in time when the aluminum plate completes the bending process, so that the bending machine can re-bend and trim the unqualified aluminum plate, thereby improving the qualification rate and production efficiency of product production.

[0006] In the first aspect, the present application provides an aluminum plate bending device with a detection structure adopting the following technical solutions:

[0007] A base, with a workbench provided on the base;

[0008] A mold is mounted on the workbench, wherein the upper end surface of the mold is provided with a mold groove, and the cross section of the mold groove is triangular;

[0009] A bending rod is slidably mounted on the base, the bending rod is located above the die groove, one end of the bending rod close to the die groove is configured as a triangular end adapted to the shape of the die groove, and a first driving member is provided on the base to drive the bending rod to move closer to or away from the die groove;

[0010] The sensor assembly includes two infrared sensors, which are both installed on the press-bending rod and relatively distributed on both sides of the press-bending rod. The infrared sensors can emit and receive infrared rays. There is a certain angle between the output end of the infrared sensor and the press-bending rod. The output end of the infrared sensor is perpendicular to the groove wall of the mold groove. The infrared rays emitted by the infrared sensor are irradiated on the aluminum plate.

[0011] Optionally, pressure plates are respectively provided on both sides of the triangular end of the output end of the bending rod, and the angle formed between the two pressure plates is the same as the angle of the triangular end of the bending rod. The pressure plates are parallel to the groove walls of the mold groove, and the pressure plates are pressed against the surface of the aluminum plate so that the aluminum plate can maintain the bent state as much as possible after bending.

[0012] Optionally, a heating component is provided inside the triangular end of the bending rod, and the heating component can increase the temperature of the triangular end of the bending rod. When the angle of the aluminum plate needs to be corrected, the bending rod can heat and soften the bending part of the aluminum plate, so that the aluminum plate can be bent relatively easily, and the pressing plate can simultaneously press the softened area and non-softened area of ​​the aluminum plate, so that the aluminum plate can be bent at an angle as a whole, rather than locally.

[0013] Optionally, the infrared sensor is slidably installed on the side wall of the bending rod, and the bending rod is provided with a second driving member for driving the rod to slide in the direction of approaching or moving away from the mold groove. The infrared sensor can slide into the interlayer space between the pressing plate and the bending rod, and the infrared rays emitted by the infrared sensor at this time will be irradiated onto the pressing plate, so as to measure the angle of the triangular end of the bending rod, thereby determining whether the bending rod can continue to be used.

[0014] Optionally, the second driving member includes a slide rail and a slider, and there are two slide rails and two sliders respectively. The two sliders correspond one-to-one to the two slide rails, and the two infrared sensors correspond one-to-one to the two slide rails. The slide rails are fixedly installed on the side walls of the bending rod, and the sliders are slidably installed on the slide rails. A connecting rod is provided between the two sliders, and an electric push rod is provided on the bending rod, and the output shaft of the electric push rod is connected to the connecting rod.

[0015] Optionally, the first driving member includes a hydraulic cylinder, which is mounted on the base, and an output shaft of the hydraulic cylinder is connected to the bending rod.

[0016] Optionally, a first detachable connecting member is provided between the hydraulic cylinder output shaft and the bending rod to facilitate replacement of bending rods of different models.

[0017] Optionally, a second detachable connector is provided between the mold and the workbench to facilitate replacement of molds of different models.

[0018] Optionally, a positioning component for positioning the aluminum plate is provided on the workbench.

[0019] In a second aspect, the present application provides a method for using a bending device, comprising the following steps:

[0020] S1: Before starting the equipment, the infrared sensor is moved to the sandwich between the pressing plate and the bending rod by the electric push rod. The infrared sensor emits infrared rays and measures the distance between the infrared sensor and the pressing plate. The angle between the infrared sensor and the bending rod and the length of the infrared sensor and the triangular end of the bending rod are known. The angle between the two pressing plates and the triangular end of the bending rod is calculated according to the sine theorem to determine whether the bending rod can be used normally. Then the aluminum plate is placed on the mold and positioned by the positioning assembly.

[0021] S2: Start the hydraulic cylinder, which drives the bending rod to move in the direction close to the aluminum plate until the bending rod abuts against the aluminum plate and bends the aluminum plate;

[0022] S3: After the aluminum plate is bent, it becomes V-shaped. At this time, the infrared sensor emits infrared rays and measures the distance between the infrared sensor and the aluminum plate. The angle between the infrared sensor and the bending rod and the length between the infrared sensor and the bending part of the aluminum plate are known. The bending angle of the aluminum plate is calculated according to the cosine theorem.

[0023] S31: When the measured angle reaches a predetermined value, the aluminum plate is removed;

[0024] S32: When the measured angle reaches a predetermined value, the heating component is started, and then steps S2 and S3 are repeated;

[0025] S4: Measure that the angle of the trimmed aluminum plate reaches the predetermined value, and process the next aluminum plate. If it does not reach the predetermined value and the angle of the triangular end of the bent rod is normal, replace the mold and repeat S1, S2 and S3.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The setting of infrared sensor can measure the bending angle of aluminum plate immediately after the bending equipment completes the bending work on the aluminum plate. When the bending degree of the aluminum plate is measured to be less than the preset value, the bending equipment will immediately re-bend the aluminum plate. At this time, the aluminum plate is still in the bending equipment, and workers do not need to carry and position the aluminum plate again, thereby saving labor and simplifying the overall operation steps, and improving the production efficiency of aluminum plate; at the same time, the bending equipment can measure and trim the aluminum plate in time, which not only saves the time of rework as a whole, but also further reduces the defective rate of aluminum plate produced by the bending equipment, thereby further improving the production efficiency and production qualification rate of the equipment as a whole;

[0028] 2. When the triangular end of the bending rod is used to extrude and bend the aluminum plate, the pressure on the aluminum plate is relatively concentrated due to the small contact area between the triangular end and the aluminum plate, making the aluminum plate prone to breakage. The setting of the pressing plate increases the contact area between the aluminum plate, the bending rod, and the triangular end, thereby dispersing the concentrated pressure on the aluminum plate and reducing the probability of the aluminum plate breaking. In addition, when the aluminum plate is subjected to the pressure of the triangular end of the bending rod, the internal part of the bending part of the aluminum plate is prone to deformation due to the stress. The setting of the pressing plate ensures that both sides of the aluminum plate are subjected to the pressure of the pressing plate and the support force of the die groove wall respectively, thereby reducing the probability of deformation of the aluminum plate and improving the qualified rate of the product.

[0029] 3. Since the angle between the two pressing plates is the same as the angle of the triangular end of the bending rod, the angle between the two pressing plates can be measured by the infrared sensor, and the angle of the triangular end of the bending rod can be measured. This allows a self-test of the standardization of the bending rod to minimize the bending deformation of the bending rod due to long-term operation, thereby reducing product productivity.

[0030] 4. When it is detected that the angle of the aluminum plate does not reach the predetermined value, it is necessary to heat the triangular end of the bending rod through the heating component, so that when the triangular end of the bending rod contacts the bent part of the aluminum plate, the aluminum plate is softened to a certain extent due to the heat, which makes it convenient for the bending rod to re-bend and repair the bent part of the aluminum plate. The softened aluminum plate is prone to concave deformation due to extrusion, rather than repairing the angle of the entire aluminum plate. The setting of the pressing plate enables the pressing plate to abut the softened part of the bent part of the aluminum plate, and also to abut the unsoftened part of the bent part of the aluminum plate. Therefore, the pressing plate can make the softened part and the unsoftened part of the aluminum plate on the same plane, thereby minimizing the situation where the softened part of the aluminum plate is pressed and dented. When the bending rod repairs the aluminum plate, the aluminum plate can be repaired at an angle as a whole, thereby further improving the practicality and production qualification rate of this equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present application;

[0032] Figure 2 This is a schematic structural diagram of the press-bent rod in Example 1 of the present application;

[0033] Figure 3 This is a schematic structural diagram of the connecting portion in Example 1 of the present application;

[0034] Figure 4 yes Figure 3 A magnified schematic diagram of point A in the middle;

[0035] Figure 5 is a schematic structural diagram of the second driving member in Example 1 of the present application;

[0036] Figure 6 is a schematic structural diagram of the positioning component in Example 1 of the present application;

[0037] Figure 7 is a schematic diagram of the detection angle of the infrared sensor in Example 1 of the present application;

[0038] In the figure, 1. base; 11. workbench; 12. bracket; 2. mold; 21. mold groove; 3. bending rod; 31. connecting part; 32. working part; 321. through groove; 322. mounting groove; 33. pressure plate; 34. infrared sensor; 4. first driving member; 5. second driving member; 51. slide rail; 52. slider; 53. connecting rod; 54. electric push rod; 55. reinforcing rib; 6. first detachable connecting member; 61. internal threaded tube; 62. external thread; 7. second detachable connecting member; 71. connecting bolt; 72. bolt hole; 8. positioning assembly; 81. column; 811. positioning groove; 82. positioning block; 83. positioning spring; 9. heating assembly. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-7 , further details of this application are given. Example 1

[0040] An aluminum plate bending device with a detection structure, referring to Figure 1 and Figure 2 , including a base 1, a mold 2, a bending rod 3 and a sensor assembly.

[0041] In this embodiment, the base 1 is arranged in a rectangular parallelepiped shape, a universal wheel is arranged below the base 1, a workbench 11 is arranged on the upper end surface of the base 1, and a bracket 12 is fixedly connected to the upper end surface of the base 1, and a crossbeam in the bracket 12 is located above the workbench 11.

[0042] The mold 2 is mounted on the workbench 11 . A mold groove 21 is provided on the upper end surface of the mold 2 . The mold groove 21 is arranged horizontally and runs through the entire mold 2 . In this embodiment, the cross section of the mold groove 21 is triangular.

[0043] The bending rod 3 in this embodiment mainly includes two parts, a connecting part 31 and a working part 32. One end of the connecting part 31 is slidably connected to the bracket 12, and the other end of the connecting part 31 is fixedly connected to the working part 32. The connecting part 31 and the working part 32 are arranged perpendicular to each other. The working part 32 is configured as a long strip as a whole, and its cross-section is also configured as a triangle that matches the die groove 21. Reinforcing ribs 55 are fixedly connected to both sides of the connecting part 31, and the two reinforcing ribs 55 are arranged opposite to each other, and the end of the reinforcing rib 55 away from the connecting part 31 is fixedly connected to the working part 32. A first driving part 4 for driving the bending rod 3 to move closer to or away from the die groove 21 is provided on the bracket 12.

[0044] The sensor assembly includes two infrared sensors 34 .

[0045] Both infrared sensors 34 are installed on the connecting part 31 on the bending rod 3. The two infrared sensors 34 are relatively distributed on both sides of the connecting part 31, and the infrared sensors 34 are not on the same plane as the reinforcing rib 55. The infrared sensor 34 in this embodiment can emit and receive infrared rays. The infrared sensor 34 is electrically connected to the control center in the equipment. There is a certain angle between the infrared sensor 34 in this embodiment and the surface of the connecting part 31. The infrared ray emitted by one infrared sensor 34 is perpendicular to the plane of one side of the groove wall of the die groove 21, and the infrared ray emitted by the other infrared sensor 34 is perpendicular to the plane of the other side of the groove wall of the die groove 21. Since the two surfaces of the aluminum plate after bending are parallel to the two groove walls of the die groove 21, the infrared ray emitted by the infrared sensor 34 is perpendicular to the plane after the aluminum plate is bent.

[0046] When the aluminum plate needs to be bent, the aluminum plate is placed on the upper end surface of the mold 2, and the first driving member 4 is started. The first driving member 4 drives the working part 32 of the bending rod 3 to move in the direction close to the die groove 21 until the working part 32 of the bending rod 3 abuts the aluminum plate and bends the aluminum plate. The bent aluminum plate is pressed against the groove wall of the die groove 21, and then the working part 32 of the bending rod 3 is driven by the first driving member 4 to move a short distance in the direction away from the aluminum plate until the working part 32 of the bending rod 3 is no longer in contact with the aluminum plate. At this time, the aluminum plate is bent, and the aluminum plate bends upward from both sides of the bend to form an inverted V shape. Then the infrared light emitted by the infrared sensor 34 hits the aluminum plate. Since the aluminum plate should be parallel to the groove wall of the die groove 21 at this time, that is, the infrared light emitted by the infrared sensor 34 is vertical The infrared sensor 34 is perpendicular to the aluminum plate. Therefore, after the infrared ray contacts the aluminum plate, it will be reflected back to the emitting end surface of the infrared sensor 34. Based on the time between the infrared sensor 34 emitting and receiving the infrared ray and the propagation speed of the infrared ray, the distance of the infrared ray, that is, the distance between the infrared sensor 34 and the aluminum plate, can be calculated. Since the angle between the infrared sensor 34 and the connecting portion 31 of the bending rod 3, and the relative position of the infrared sensor 34 and the triangular end of the working portion 32 of the bending rod 3 are fixed, the angle between the infrared sensor 34 and the connecting portion 31 of the bending rod 3, and the length of the bending point between the infrared sensor 34 and the aluminum plate are already known. Then, the vertical distance between the infrared sensor 34 and the aluminum plate measured by the infrared sensor 34 can be calculated according to the cosine theorem:

[0047]

[0048] The angle between the bent side of the aluminum plate and the bent rod 3 can be calculated, and then the angle between the two bent sides of the aluminum plate and the bent rod 3 can be added together to obtain the angle of the overall aluminum plate bending (combined with Figure 7 ).

[0049] When it is measured that the curvature of the aluminum plate does not reach the predetermined value, the first driving member 4 is started, and the above operation is repeated to perform a re-bend repair process on the aluminum plate. At this time, the aluminum plate is still in the bending equipment, and the workers do not need to move and position the aluminum plate again, thereby saving the labor of the staff and simplifying the overall operation steps, thereby improving the production efficiency of the aluminum plate; at the same time, the bending equipment in this embodiment can measure and trim the aluminum plate in a timely manner, which not only saves the rework time as a whole, but also further reduces the defective rate of aluminum plates produced by the bending equipment, thereby further improving the production efficiency and production qualification rate of the equipment as a whole.

[0050] In addition, when the infrared sensor 34 does not receive the reflected infrared rays, it means that the emitted infrared rays are not perpendicular to the aluminum plate, which also means that the bending angle of the aluminum plate has not reached the predetermined value. Therefore, it also needs to be repaired by re-bending.

[0051] In this embodiment, a pressure plate 33 is provided on both sides of the triangular end of the working part 32 of the bending rod 3. The angle formed between the two pressure plates 33 is the same as the angle of the triangular end of the bending rod 3. The pressure plate 33 is parallel to the groove wall of the die groove 21. The pressure plate 33 is pressed against the surface of the aluminum plate so that the aluminum plate can maintain the bent state as much as possible after bending.

[0052] When the triangular end of the working part 32 of the bending rod 3 extrude and bends the aluminum plate, the pressure on the aluminum plate is relatively concentrated due to the small contact area between the triangular end and the aluminum plate, and the aluminum plate is prone to breakage. The setting of the pressure plate 33 increases the contact area between the aluminum plate, the bending rod 3 and the triangular end, thereby dispersing the concentrated pressure on the aluminum plate and reducing the probability of the aluminum plate breaking. In addition, when the aluminum plate is subjected to the pressure of the triangular end of the bending rod 3, the internal part of the bending part of the aluminum plate is prone to deformation due to the effect of stress. The setting of the pressure plate 33 makes the two bent sides of the aluminum plate respectively subjected to the pressure of the pressure plate 33 and the support force of the wall of the die groove 21, so that the aluminum plate is not easy to deform, thereby improving the qualified rate of the product.

[0053] In order to further improve the ability of the press-bending rod 3 to repair the aluminum plate, a heating component 9 is provided inside the triangular end of the working portion 32 of the press-bending rod 3 .

[0054] The heating component 9 in this embodiment is a heating rod, which is connected to an external power source via a wire (not shown in the figure). The heating component 9 can increase the temperature of the triangular end of the working portion 32 of the bending rod 3.

[0055] When the bending angle of the aluminum plate measured according to the above method does not reach the predetermined value, the heating component 9 is started to heat the working part 32 of the bending rod 3. At this time, the working part 32 of the bending rod 3 is only a short distance away from the bending part of the aluminum plate. The first driving member 4 is started to drive the working part 32 of the bending rod 3 to move in the direction close to the bending part of the aluminum plate until the working part 32 of the bending rod 3 abuts against the bending part of the aluminum plate. The working part 32 of the bending rod 3 with a higher temperature can conduct heat to the bending part of the aluminum plate. The bending part of the aluminum plate will soften when heated, and the softened aluminum plate has better ductility. Therefore, at this time, the working part 32 of the bending rod 3 can better perform bending repair on the softened aluminum plate.

[0056] It should be noted that when the softened aluminum plate is subjected to pressure, it is also easy for itself to undergo local deformation due to the pressure. The contact area between the triangular end of the traditional bending rod 3 and the bending part of the aluminum plate is relatively small. Therefore, when the bending part of the aluminum plate is softened by heat, the triangular end of the traditional bending rod 3 is easy to press the heated bending part of the aluminum plate into a depression or local deformation, thereby causing damage to the aluminum plate; in this embodiment, a pressing plate 33 is provided on the working part 32. When the working triangular end of the bending rod 3 abuts against the bending part of the aluminum plate, the pressing plate 33 can increase the contact area between the working part 32 of the bending rod 3 and the aluminum plate, so that the pressing plate 33 can simultaneously press the softened area and non-softened area of ​​the aluminum plate, so that the aluminum plate can be bent at an angle as a whole, rather than locally depressed and deformed, thereby ensuring the overall repair effect of this equipment on substandard aluminum plates.

[0057] The infrared sensor 34 in this embodiment is slidably mounted on the side wall of the connecting portion 31 of the bending rod 3 , and the connecting portion 31 of the bending rod 3 is provided with a second driving member 5 for driving the rod to slide in a direction close to or away from the die groove 21 .

[0058] The infrared sensor 34 in this embodiment can slide into the interlayer space between the pressing plate 33 and the connecting portion 31 of the bending rod 3, and the infrared rays emitted by the infrared sensor 34 at this time will irradiate the pressing plate 33. Since the pressing plate 33 and the die groove 21 are arranged relatively parallel, the infrared rays emitted by the infrared sensor 34 are also perpendicular to the plane where the pressing plate 33 is located. The angle between the infrared sensor 34 and the connecting portion 31 of the bending rod 3 is known. The distance between the infrared sensor 34 and the pressing plate 33 in the initial state is fixed and known. The moving distance of the infrared sensor 34 is fixed and known. Therefore, after the movement, the infrared sensor 34 and the pressing plate 3 are at a fixed distance. 3 is known, so according to the above formula and method, the angle between the pressure plate 33 and the connecting part 31 of the pressure bending rod 3, the angle between the two pressure plates 33 and the angle of the triangular end of the working part 32 of the pressure bending rod 3 can be measured. By comparing these angle values ​​with the original initial values, it can be determined whether the pressure bending rod 3 and the pressure plate 33 have been deformed after a long period of work. If the measured angle value is the same as the original initial value, it means that the pressure bending rod 3 and the pressure plate 33 have not been deformed and can continue to be used; otherwise, it means that the pressure bending rod 3 and the pressure plate 33 have been deformed, and the pressure bending rod 3 and the pressure plate 33 need to be replaced or repaired.

[0059] Secondly, the first driving member 4 in this embodiment is configured as a hydraulic cylinder, which is fixedly mounted on the bracket 12, and the output shaft of the hydraulic cylinder is connected to the connecting portion 31 of the bending rod 3; in addition, a first detachable connecting member 6 is provided between the output shaft of the hydraulic cylinder and the connecting portion 31 of the bending rod 3 in this embodiment so that different models of bending rods 3 can be replaced.

[0060] The first detachable connecting member 6 in this embodiment includes an external thread 62, which is arranged on the outer peripheral wall of the connecting portion 31 of the bending rod 3. An internal threaded tube 61 is coaxially fixedly connected to the output shaft of the hydraulic cylinder. When the bending rod 3 needs to be connected to the output shaft of the hydraulic cylinder, the connecting portion 31 of the bending rod 3 can be screwed into the internal threaded tube 61. Conversely, when the bending rod 3 needs to be replaced, the connecting portion 31 of the bending rod 3 can be screwed out of the internal threaded tube 61.

[0061] Reference Figure 3 、 Figure 4 and Figure 5 The second driving member 5 includes a slide rail 51 and a slider 52 .

[0062] There are two slide rails 51 and two sliders 52 respectively, and the two sliders 52 correspond to the two slide rails 51 one by one. The two infrared sensors 34 correspond to the two slide rails 51 one by one. The slide rail 51 is fixedly installed on the side wall of the connecting part 31 of the bending rod 3, and the slider 52 is slidably installed on the slide rail 51. A connecting rod 53 is arranged between the two sliders 52. A through groove 321 for the connecting rod 53 to pass through is provided on the peripheral wall of the working part 32, and a placement groove is provided inside the through groove 321. An electric push rod 54 is arranged in the placement groove, and the output shaft of the electric push rod 54 is connected to the connecting rod 53.

[0063] When it is necessary to move the infrared sensor 34 to the interlayer between the pressing plate 33 and the connecting part 31 of the bending rod 3, the electric push rod 54 is started, the electric push rod 54 extends, and drives the two infrared sensors 34 to move simultaneously in the direction close to the die groove 21 through the connecting rod 53. After the infrared measurement is completed, the electric push rod 54 is started to retract, so that the infrared sensor 34 returns to the initial position to measure the bending angle of the aluminum plate.

[0064] It should be noted that in this embodiment, the moving distance of the infrared sensor 34 is fixed, and there are only two fixed positions: the initial position and the position after movement. Therefore, the distance between the infrared sensor 34 and the pressure plate 33 is known, and since the thickness of the pressure plate 33 is constant, the distance between the infrared sensor 34 and the wall of the mold groove 21 is also known.

[0065] Finally, refer to Figure 6 In this embodiment, a positioning assembly 8 for positioning the aluminum plate is provided on the workbench 11. The positioning assembly 8 includes a column 81, a positioning block 82 and a positioning spring 83.

[0066] There are two columns 81, and the two positioning columns are fixedly installed on the workbench 11 and are relatively distributed on both sides of the mold 2. There are also two positioning blocks 82 and two positioning springs 83. The two positioning blocks 82 correspond one-to-one to the two columns 81, and the two positioning blocks 82 correspond one-to-one to the two positioning springs 83. A positioning groove 811 for the positioning block 82 to slide into is provided on the side wall of the column 81 close to the mold 2. The positioning spring 83 is located in the positioning groove 811. One end of the positioning spring 83 is fixedly connected to the groove wall of the positioning groove 811, and the other end of the positioning spring 83 is fixedly connected to the positioning block 82.

[0067] When the aluminum plate needs to be positioned, the two positioning blocks 82 are moved in the direction close to the positioning spring 83, the positioning spring 83 is compressed, and then the aluminum plate is placed on the mold 2. The positioning spring 83 is reset to drive the two positioning blocks 82 to move in the direction close to the aluminum plate until the positioning blocks 82 abut against the aluminum plate. Under the pressure of the two positioning blocks 82, the aluminum plate can be relatively stably positioned on the mold 2, thereby minimizing the rotation or sliding of the aluminum plate on the mold 2, which causes the required bending of the aluminum plate to change. Example 2

[0068] A method for using a bending device, based on the above-mentioned aluminum plate bending device with a detection structure, comprises the following steps:

[0069] S1: Before starting the equipment, the infrared sensor 34 is moved to the sandwich between the pressing plate 33 and the bending rod 3 by the electric push rod 54. The infrared sensor 34 emits infrared rays and measures the distance between the infrared sensor 34 and the pressing plate 33. The angle between the infrared sensor 34 and the bending rod 3 and the length of the triangular end of the bending rod 3 are known. The angle between the two pressing plates 33 and the triangular end of the bending rod 3 are calculated according to the cosine theorem to determine whether the bending rod 3 can be used normally. Then, the aluminum plate is placed on the mold 2 and positioned by the positioning assembly 8.

[0070] S2: The hydraulic cylinder is activated, and the hydraulic cylinder drives the bending rod 3 to move in the direction close to the aluminum plate until the bending rod 3 abuts against the aluminum plate and bends the aluminum plate. At this time, the pressing plate 33 also abuts against the aluminum plate.

[0071] S3: After the aluminum plate is bent, it becomes V-shaped. At this time, the infrared sensor 34 emits infrared rays and measures the distance between the infrared sensor 34 and the aluminum plate. The angle between the infrared sensor 34 and the bending rod 3 and the length between the infrared sensor 34 and the bending portion of the aluminum plate are known. The bending angle of the aluminum plate is calculated according to the cosine theorem.

[0072] S31: When the measured angle reaches a predetermined value, the aluminum plate is removed;

[0073] S32: When the measured angle reaches the predetermined value, the heating assembly 9 is started, and then steps S2 and S3 are repeated, wherein the pressing plate 33 can ensure that the aluminum plate can perform the overall angle bending repair process;

[0074] S4: Measure that the angle of the trimmed aluminum plate reaches the predetermined value, and process the next aluminum plate. If it does not reach the predetermined value and the angle of the triangular end of the bent rod 3 is normal, replace the mold 2, and then repeat S1, S2 and S3.

[0075] The method can produce products of higher quality and accelerate the production rate of products.

[0076] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. An aluminum plate bending device with a detection structure, characterized in that: include: A base (1), a workbench (11) is provided above the base (1); a mold (2), mounted on the workbench (11), an upper end surface of the mold (2) being provided with a mold groove (21), the cross section of the mold groove (21) being triangular; a bending rod (3), slidably mounted on the base (1), the bending rod (3) being located above the mold groove (21), an end of the bending rod (3) close to the mold groove (21) being provided as a triangular end adapted to the shape of the mold groove (21), and a first driving member (4) for driving the bending rod (3) to move closer to or away from the mold groove (21); A sensor assembly, comprising two infrared sensors (34), both of which are mounted on the press-bending rod (3) and relatively distributed on both sides of the press-bending rod (3), the infrared sensors (34) being capable of emitting and receiving infrared rays, an output end of the infrared sensor (34) being at a certain angle to the press-bending rod (3), the output end of the infrared sensor (34) being perpendicular to the groove wall of the die groove (21), and the infrared rays emitted by the infrared sensor (34) being irradiated on the aluminum plate; A pressing plate (33) is provided on both sides of the triangular end of the output end of the bending rod (3), and the angle formed between the two pressing plates (33) is the same as the angle of the triangular end of the bending rod (3). The pressing plates (33) are parallel to the groove wall of the die groove (21), and the pressing plates (33) are pressed against the surface of the aluminum plate so that the aluminum plate can maintain the bent state as much as possible after bending. A heating component (9) is provided inside the triangular end of the bending rod (3), and the heating component (9) can increase the temperature of the triangular end of the bending rod (3). When the angle of the aluminum plate needs to be corrected, the bending rod (3) can heat and soften the bent portion of the aluminum plate, so that the aluminum plate can be bent relatively easily. The pressing plate (33) can simultaneously press the softened area and the non-softened area of ​​the aluminum plate, so that the aluminum plate can be bent at an angle as a whole, rather than locally. The infrared sensor (34) is slidably mounted on the side wall of the bending rod (3). The bending rod (3) is provided with a second driving member (5) for driving the rod to slide in a direction close to or away from the die groove (21). The infrared sensor (34) can slide into the interlayer space between the pressing plate (33) and the bending rod (3), and the infrared ray emitted by the infrared sensor (34) at this time will irradiate the pressing plate (33) so as to measure the angle of the triangular end of the bending rod (3), thereby determining whether the bending rod (3) can continue to be used.

2. The aluminum plate bending equipment with a detection structure according to claim 1, characterized in that: The second driving member (5) includes a slide rail (51) and a slider (52), and two slide rails (51) and two sliders (52) are respectively provided. The two sliders (52) correspond to the two slide rails (51) one by one, and the two infrared sensors (34) correspond to the two slide rails (51) one by one. The slide rail (51) is fixedly mounted on the side wall of the bending rod (3), and the slider (52) is slidably mounted on the slide rail (51). A connecting rod (53) is provided between the two sliders (52), and an electric push rod (54) is provided on the bending rod (3). The output shaft of the electric push rod (54) is connected to the connecting rod (53).

3. The aluminum plate bending equipment with a detection structure according to claim 1, characterized in that: The first driving member (4) comprises a hydraulic cylinder, the hydraulic cylinder is mounted on the base (1), and the output shaft of the hydraulic cylinder is connected to the bending rod (3).

4. The aluminum plate bending equipment with a detection structure according to claim 3, characterized in that: A first detachable connecting member (6) is provided between the hydraulic cylinder output shaft and the bending rod (3) to facilitate replacement of bending rods (3) of different models.

5. The aluminum plate bending equipment with a detection structure according to claim 1, characterized in that: A second detachable connecting member (7) is provided between the mold (2) and the workbench (11) to facilitate replacement of molds (2) of different models.

6. The aluminum plate bending equipment with a detection structure according to claim 1, characterized in that: The workbench (11) is provided with a positioning component (8) for positioning the aluminum plate.

7. A method for using a bending device, based on the aluminum plate bending device with a detection structure according to any one of claims 1 to 6. The following steps are involved: S1: Before starting the equipment, the infrared sensor (34) is moved to the sandwich between the pressing plate (33) and the bending rod (3) by the electric push rod (54), and the infrared sensor (34) emits infrared rays, and the distance between the infrared sensor (34) and the pressing plate (33) is measured. The angle between the infrared sensor (34) and the bending rod (3) and the length of the triangular end of the infrared sensor (34) and the bending rod (3) are known. According to the cosine theorem, the angle between the two pressing plates (33) and the triangular end of the bending rod (3) is calculated to determine whether the bending rod (3) can be used normally. Then, the aluminum plate is placed on the mold (2) and the aluminum plate is positioned by the positioning component (8); S2: Start the hydraulic cylinder, and the hydraulic cylinder drives the bending rod (3) to move in the direction close to the aluminum plate until the bending rod (3) abuts against the aluminum plate and bends the aluminum plate; S3: After the aluminum plate is bent, the aluminum plate is in a V shape. At this time, the infrared sensor (34) emits infrared rays, and the distance between the infrared sensor (34) and the aluminum plate is measured. The angle between the infrared sensor (34) and the bending rod (3) and the length of the bending portion of the aluminum plate are known. The bending angle of the aluminum plate is calculated according to the cosine theorem; S31: The measured angle reaches a predetermined value, and the aluminum plate is removed; S32: The measured angle does not reach the predetermined value, and the heating component (9) is started, and then the steps of S2 and S3 are repeated; S4: The angle of the trimmed aluminum plate is measured to reach the predetermined value, and the next aluminum plate is processed. If it does not reach the predetermined value and the angle of the triangular end of the bending rod (3) is normal, the mold (2) is replaced, and then S1, S2 and S3 are repeated.

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