Metal plate bending detection equipment

By designing a metal sheet testing device that includes bending and lifting clamps, and combining laser temperature measurement and resistance heating, the problem that traditional equipment cannot fully evaluate sheet performance is solved, and fully automatic and comprehensive performance testing is achieved.

CN121453545APending Publication Date: 2026-02-03HUNAN HUYU TECH CO LTD
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Patent Information

Application Number
CN202511538394.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-27
Publication Date
2026-02-03

AI Technical Summary

Technical Problem

Traditional metal sheet bending testing equipment has a simple structure, cannot fully evaluate the performance of the sheet, requires multiple devices to work together and is labor-intensive, and is difficult to test in environments with temperature differences.

Method used

Design a testing device that includes a bending clamp and a lifting clamp. The device can automatically test bending under different tensile forces and temperatures, and combine a laser temperature measurement module and resistance heating to achieve comprehensive performance evaluation.

Benefits of technology

It achieves fully automated and comprehensive performance testing of metal sheets, reduces manpower consumption, and can accurately evaluate sheet performance under temperature difference conditions.

✦ Generated by Eureka AI based on patent content.

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    Figure CN121453545A_ABST
Patent Text Reader

Abstract

The invention belongs to the field of metal plate performance detection, and particularly relates to metal plate bending detection equipment which comprises a supporting column frame, a bending clamping plate capable of rotating is installed at the position, close to the top, of the front end of the supporting column frame, and a lifting clamping plate capable of lifting is installed at the position, close to the middle, of the front end of the supporting column frame. The bending clamping plate and the lifting clamping plate are both used for fixing a metal plate, two communication plates capable of translating are installed at the front end, close to the bottom, of the bending clamping plate, the communication plates are used for allowing current to pass through the metal plate, and a laser temperature measuring module is fixedly connected to the bottom of the front end of the bending clamping plate. The laser temperature measurement module is located between the two communication plates, through the arrangement, only a long detection plate needs to be prepared, the influence of the bending frequency on the performance of the plate in different pulling force states can be fully automatically conducted in one-time detection, manual operation of an operator is not needed, and data can be recycled after detection is finished.
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Description

TECHNICAL FIELD

[0001] The application belongs to the field of metal plate performance detection, and particularly relates to a metal plate bending detection equipment. BACKGROUND

[0002] Metal plates are very important materials in metal processing and manufacturing, and are widely used in many fields such as automobiles, aerospace, construction, household appliances and the like. Metal plate bending detection is an important means for evaluating the mechanical properties and processing properties of the metal plates. In order to ensure the quality of the metal plates, the metal plates need to be detected in detail.

[0003] Among them, the repeated bending test is mainly used for evaluating the fatigue properties of metal materials. Through cyclic loading, the actual working condition is simulated, and the test machine repeatedly bends the sample at a fixed frequency, and the cycle number when the material cracks or breaks is recorded.

[0004] The conventional metal plate bending detection equipment is often simple in structure, and can only perform repeated bending experiments on the detection plate. When the plate breaks, only the fatigue bending number of the plate can be obtained. However, the performance data required by the metal plate in actual application is more comprehensive, and a plurality of different detection equipment needs to be used to obtain the required performance data. In addition, the operator needs to be always present beside the equipment to assist during the detection process, which consumes a large amount of human resources.

[0005] Therefore, the application provides a metal plate bending detection equipment. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background.

[0007] The technical scheme adopted by the application to solve the technical problems is that the metal plate bending detection equipment comprises a support frame, a bending clamp plate capable of rotating is installed at the front end of the top of the support frame, a lifting clamp plate capable of lifting is installed at the front end of the middle of the support frame, the bending clamp plate and the lifting clamp plate are both used for fixing the metal plate, two communication plates capable of translating are installed at the front end of the bottom of the bending clamp plate, the communication plates are used for passing current through the metal plate, a laser temperature measurement module is fixedly connected to the front end of the bottom of the bending clamp plate, and the laser temperature measurement module is located between the two communication plates. Only need to prepare a long detection plate, can be in a detection, full-automatic plate in different pulling force state, bending times on the performance of the plate, and without the need for operators to operate manually, after the detection of data recovery; At the same time, the repeated bending test under different temperature has a significant impact on the performance of metal materials, and the actual application of metal plate is often in the environment with large temperature difference, in order to ensure more comprehensive detection of the plate, after the room temperature detection, the communication board can be used, the communication board can be attached to the two sides of the detection plate after the detection plate is fixed, and the detection becomes resistance through the detection plate communication circuit, so as to generate heat when the current passes through, so as to heat the detection plate, the temperature of the detection plate is detected by the laser temperature measuring module, when the temperature reaches the requirement, stop heating, and let the communication board leave the detection plate, then the detection plate is bent and the data is recorded, so that the performance data of the metal plate can be obtained more comprehensively.

[0008] Preferably, the support frame comprises an upper deflection table and an adjusting seat, the upper deflection table is slidingly connected to the top surface of the adjusting seat, a lead screw nut mechanism for driving the upper deflection table to move horizontally is installed on the top of the adjusting seat, the bending clamp plate is installed on the upper deflection table, and the lifting clamp plate is installed on the adjusting seat. During work, the upper deflection table will adaptively move horizontally when the bending clamp plate is bent, so that the bending position of the detection plate remains at the bottom of the bending clamp plate when it is bent, and the lower bending clamp plate remains vertical. For example, when the bending clamp plate rotates counterclockwise, the upper deflection table moves left under the drive of the lead screw nut mechanism. In this way, the detection plate located below will not be bent too much, and the bending part is concentrated below the bending clamp plate. This can ensure that the bending force accurately acts on the detection position, and will not affect the detection plate below, so that the detection plate can remain unbent before subsequent detection.

[0009] Preferably, the bending clamp plate is composed of two metal plates with a gap between them, and a fixed clamp one capable of opening and closing is installed on the opposite side of the two metal plates. The front end of the lifting clamp plate is provided with an inner groove, and a fixed clamp two is installed on the two side walls of the inner groove. During work, the detection plate can be placed in the middle of the bending clamp plate and the inner groove of the lifting clamp plate from the front of the equipment, and then fixed by the fixed clamp one and the fixed clamp two. The fixed clamp one and the fixed clamp two are opened and closed by electric drive. Through the cooperation of the two, the detection plate can be fixed, and the detection plate can be continuously transported upward to achieve the effect of changing the detection position.

[0010] Preferably, the front end of the upper deflection table is fixedly connected with a sleeve, the front end of the sleeve is provided with a motor slot, the servo motor is fixedly connected in the motor slot, the rear end of the curved clamping plate is fixedly connected with an integrated plate, the output end of the servo motor is fixedly connected with the integrated plate, in operation, the sleeve fixes the servo motor, the integrated plate and the curved clamping plate are driven to rotate by the servo motor, at the same time, the whole sleeve can move horizontally along with the upper deflection table, so that the bending detection process is ensured to be smoothly performed.

[0011] Preferably, the front end of the adjusting seat is fixedly connected with a vertically arranged lifting slide rail, the front end of the lifting slide rail is provided with a vertically arranged clamping groove, the rear end of the lifting clamping plate is slidingly clamped in the clamping groove, the moving end of the lifting slide rail is fixedly connected with the lifting clamping plate, in operation, the lifting clamping plate is driven to lift by the lifting slide rail, the clamping groove is used to constrain the lifting clamping plate to ensure the stable lifting process of the lifting clamping plate, and the surface of the lifting slide rail is further provided with scales for conveniently observing the lifting amplitude of the lifting clamping plate and detecting the length of the plate.

[0012] Preferably, the outer side of the lifting clamping plate is fixedly connected with a horizontally arranged electric telescopic rod, the output end of the electric telescopic rod is fixedly connected with a pressing needle, and the end of the pressing needle is located in the inner groove, in operation, when the detection plate is fixed at the position of the lifting clamping plate, the pressing needle can be controlled to extrude the surface of the detection plate by the electric telescopic rod, the extrusion degree is controlled, and the depth of the pressing needle pressed into the detection plate is calculated; the depth is the same as the extension length of the electric telescopic rod; so that the barus hardness value of the detection plate is calculated; the performance value of the metal plate is more comprehensively detected through the arrangement; meanwhile, the hardness detection can be added in the bending experiment, the plate after being bent for many times or heated is placed in the lifting clamping plate again, the barus hardness is tested, and more detailed performance values of the plate under different states can be obtained; for example, after the plate is bent, the fixing clamp one is slightly loosened, the plate is still fixed, the lifting clamping plate is still fixed, then the plate is pulled downward, the fixing clamp one is fixed again after the plate is pulled to the position, the lifting clamping plate is unfixed and moved to the position of the bent or heated plate, and the hardness of the position is detected, so that the detection process is completed.

[0013] Preferably, the bottom of the integrated plate is fixedly connected with an extension box, the end of the extension box is provided with two groups of parallel arranged recycling grooves, the rear end of the communication plate is fixedly connected with a moving table, the electric slide rail is horizontally arranged in the recycling groove, the output end of the electric slide rail is fixedly connected with the moving table, the communication plate is made of elastic metal material, and the communication plate is arranged in an arc shape, in operation, the moving table and the communication plate are driven to extend out of the recycling groove by the electric slide rail, contact the detection plate, and complete the process of being electrified and heated, the end of the communication plate is arranged in an arc shape, can be bent when contacting the detection plate, and the contact and pressing of the detection plate are ensured.

[0014] Preferably, the upper part of the middle part of the integrated board is fixed with a plurality of horizontally arranged optical probes one, and the two sides of the extension box are provided with obliquely arranged optical probes two; during operation, the optical probes two can observe and record the cracks on the surface of the plate when it is bent for the first time; the optical probes one can first lock the detection plate, and when the detection plate is bent for the first time, the fixed clamp one is quickly loosened, the rebound of the detection plate is observed, and when the rebound is too large, the bending clamp plate can be rotated and adjusted according to the data of the optical probes one; through the above arrangement, the performance data of the plate that can be detected is further increased, and the detection comprehensiveness is improved.

[0015] Preferably, the rear end of the integrated board is fixed with a plurality of restraint rods, and the plurality of restraint rods are arranged in a ring shape at equal intervals; the rear end of the extension box is fixed with a power transmission rod for connecting the circuit; and the front end of the sleeve is provided with a restraint groove matched with the restraint rod and a power transmission groove matched with the power transmission rod; during operation, the cooperation of the restraint rod and the restraint groove ensures the stable rotation process of the integrated board; the power transmission rod has two contacts which are slidably attached to the power transmission groove to complete the current transmission without affecting the rotation process of the integrated board.

[0016] Preferably, the bottom of the support frame is fixed with a bottom plate, the middle part of the front end of the bottom plate is arranged in an inwardly recessed shape, and the outer side of the bottom plate is fixed with a protective shell wrapping the support frame; during operation, the bottom plate ensures the stability of the support of the equipment, and the protective shell protects the equipment; a transparent cover can be closed at the front end of the protective shell; after the detection plate is placed, the equipment can be completely closed for self-detection, reducing the influence of the external environment. The beneficial effects of the present application are as follows: 1. The metal plate bending detection equipment can fix the detection plate by using the bending clamp plate and the lifting clamp plate, control the rotation of the bending clamp plate to bend the detection plate, and perform reciprocating bending effect on the detection plate through the reciprocating rotation of the bending clamp plate; the lifting clamp plate clamps the lower part of the detection plate and applies appropriate falling force to the detection plate; in order to improve the detection comprehensiveness, the pulling force of the lifting clamp plate can be changed; when the detection plate is broken, the pulling force is increased or decreased for retesting; after repeated testing, more comprehensive data of the plate can be obtained; the whole process is fully automatic; a relatively long detection plate can be prepared in advance, a part of the detection plate is reserved below the lifting clamp plate, the position of the detection plate is adjusted when the upper detection position is broken, and the detection plate is fixed again to return to the initial fixed form; thus, only a relatively long detection plate needs to be prepared, and the detection plate can be automatically detected with different pulling forces in one detection without manual operation; after the detection is completed, the data can be recovered.

[0017] 2. The metal plate bending detection device of the present application can use the communication plate after the detection at room temperature is completed. The communication plate can be attached to both sides of the detection plate after the detection plate is fixed, and the detection becomes a resistor by the detection plate communication circuit, so that heat is generated when current passes through, thereby heating the detection plate. The temperature of the detection plate is detected by the laser temperature measurement module. When the temperature reaches the requirement, the heating is stopped, and the communication plate is separated from the detection plate. Then the bending detection of the detection plate is carried out again, and the data is recorded, so that the performance data of the metal plate can be obtained more comprehensively. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described below in conjunction with the drawings.

[0019] Figure 1 is a perspective view of the present application; Figure 2 is a front view of the support frame of the present application; Figure 3 is a perspective view of the upper deflection table of the present application; Figure 4 is a perspective view of the sleeve and the integrated plate of the present application; Figure 5 is a perspective view of the servo motor and the extension box of the present application; Figure 6 is a perspective view of the integrated plate and the communication plate of the present application; Figure 7 is a perspective view of the lifting slide rail and the lifting clamp plate of the present application; In the drawings: 1, protective shell; 2, support frame; 3, lifting clamp plate; 4, bending clamp plate; 5, upper deflection table; 6, adjustment seat; 7, bottom plate; 9, lifting slide rail; 10, fixed clamp one; 11, integrated plate; 12, optical probe one; 13, sleeve; 14, power supply groove; 15, restraint groove; 16, motor groove; 17, servo motor; 18, recovery groove; 19, optical probe two; 20, restraint rod; 21, extension box; 22, power transmission rod; 23, communication plate; 24, moving table; 25, pressing needle; 26, fixed clamp two; 27, inner recess; 28, clamping groove; 29, electric telescopic rod. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application will be further described below in conjunction with specific embodiments.

[0021] As Figures 1 to 7As shown, the metal plate bending detection equipment comprises a support frame 2, a bending clamp plate 4 capable of rotating is installed at the front end of the top of the support frame 2, a lifting clamp plate 3 capable of lifting is installed at the front end of the middle of the support frame 2, the bending clamp plate 4 and the lifting clamp plate 3 are both used for fixing the metal plate, two communication plates 23 capable of translating are installed at the front end of the bottom of the bending clamp plate 4, the communication plates 23 are used for allowing current to pass through the metal plate, a laser temperature measurement module is fixedly connected to the front end of the bottom of the bending clamp plate 4, and the laser temperature measurement module is located between the two communication plates 23; The metal plate to be detected is cut into a long strip-shaped detection plate, the thickness direction of the detection plate is towards the support frame 2, the detection plate is fixed by using the bending clamp plate 4 and the lifting clamp plate 3, the bending clamp plate 4 is controlled to rotate, so that the detection plate is bent, through the reciprocating rotation of the bending clamp plate 4, the reciprocating bending effect of the detection plate can be achieved; the lifting clamp plate 3 clamps the lower part of the detection plate and applies a proper falling force to the detection plate, during the bending process of the bending clamp plate 4, the lifting clamp plate 3 will be lifted adaptively with the movement of the detection plate, but the falling pulling force remains unchanged; after the detection plate is bent for many times, the tensile strength and other plate properties will be reduced due to metal fatigue, and the detection plate will be broken under the action of the falling pulling force, the bending frequency and the pulling force of the lifting clamp plate 3 are recorded, so that the fatigue performance of the metal plate can be obtained; in order to improve the detection comprehensiveness, the pulling force of the lifting clamp plate 3 can be changed, for example, a pulling force of ten kilograms is used for testing first; after the detection plate is broken, the pulling force is increased or decreased, and testing is performed again; after repeated several times, more comprehensive data of the plate can be obtained; at the same time, the whole process is automatically performed; a longer detection plate can be prepared in advance, a part of the detection plate is reserved below the lifting clamp plate 3, when the detection plate above is broken, the bending clamp plate 4 is released first, then the detection plate below is lifted by the lifting clamp plate 3, the bending clamp plate 4 can fix the detection plate again, then the lifting clamp plate 3 is released, the lifting clamp plate 3 is moved downward by a certain position, and the detection plate is fixed again, so as to return to the initial fixing mode, in this way, only a longer detection plate needs to be prepared, the influence of the bending frequency on the performance of the plate under different pulling forces can be automatically detected in one detection, and the operator does not need to manually operate, and the data can be recovered after detection is completed; At the same time, the repeated bending test at different temperatures has a significant impact on the performance of the metal material, and the actual application of the metal plate is often in an environment with a large temperature difference. In order to ensure more comprehensive detection of the plate, after the room temperature detection is completed, the communication plate 23 can be used. The communication plate 23 is fixed on both sides of the detection plate after the detection plate is fixed, and the detection plate is connected through the detection plate, so that the detection becomes a resistance, thereby generating heat when the current passes through, so as to heat the detection plate. The temperature of the detection plate is detected by the laser temperature measuring module. When the temperature reaches the requirement, stop heating, and let the communication plate 23 leave the detection plate, and then the detection plate is bent and detected, and the data is recorded. The performance data of the metal plate can be more comprehensively obtained.

[0022] The support frame 2 comprises an upper deflection table 5 and an adjusting seat 6, the upper deflection table 5 is slidingly clamped on the top surface of the adjusting seat 6, the top of the adjusting seat 6 is provided with a lead screw nut mechanism for driving the horizontal movement of the upper deflection table 5, the bending clamp plate 4 is installed on the upper deflection table 5, and the lifting clamp plate 3 is installed on the adjusting seat 6. When working, the upper deflection table 5 will adaptively move horizontally when the bending clamp plate 4 is bent to detect, so that the detection plate remains in the bending position at the bottom of the bending clamp plate 4 when bending, and the lower bending clamp plate 4 remains in a vertical state. For example, when the bending clamp plate 4 rotates counterclockwise, the upper deflection table 5 moves left under the drive of the lead screw nut mechanism. In this way, the detection plate located below will not be excessively bent, and the bending part is concentrated below the bending clamp plate 4. In this way, the bending force can be accurately applied to the detection position, and the detection plate below will not be affected, so that the detection plate can remain unbent before subsequent detection.

[0023] The bending clamp plate 4 is composed of two metal plates, and there is a gap between the two metal plates. The opposite sides of the two metal plates are provided with fixed clamps one 10 which can be opened and closed. The front end of the lifting clamp plate 3 is provided with an inner groove 27, and the two side walls of the inner groove 27 are provided with fixed clamps two 26. When working, the detection plate can be placed in the middle of the bending clamp plate 4 and the inner groove 27 of the lifting clamp plate 3 from the front of the equipment, and then the detection plate is fixed by the fixed clamps one 10 and the fixed clamps two 26. The fixed clamps one 10 and the fixed clamps two 26 are opened and closed by electric drive. Through the cooperation of the two, the fixation of the detection plate can be completed, and the detection plate can be continuously transported upward to achieve the effect of changing the detection position.

[0024] The front end of the upper deflection table 5 is fixedly connected with a sleeve 13, the front end of the sleeve 13 is provided with a motor slot 16, the servo motor 17 is fixedly connected in the motor slot 16, the rear end of the curved clamping plate 4 is fixedly connected with an integrated plate 11, and the output end of the servo motor 17 is fixedly connected with the integrated plate 11. In operation, the servo motor 17 is fixed by the sleeve 13, the integrated plate 11 and the curved clamping plate 4 are driven to rotate by the servo motor 17, and meanwhile the whole sleeve 13 can move horizontally along with the upper deflection table 5, so that the bending detection process is ensured to be smoothly performed.

[0025] The front end of the adjusting seat 6 is fixedly connected with a vertically arranged lifting slide rail 9, the front end of the lifting slide rail 9 is provided with a vertically arranged clamping groove 28, the rear end of the lifting clamping plate 3 is slidingly clamped in the clamping groove 28, and the moving end of the lifting slide rail 9 is fixedly connected with the lifting clamping plate 3. In operation, the lifting clamping plate 3 is driven to lift by the lifting slide rail 9, and the clamping groove 28 is bound to ensure the stable lifting process of the lifting clamping plate 3, and the surface of the lifting slide rail 9 is further provided with scales for conveniently observing the lifting amplitude of the lifting clamping plate 3 and detecting the length of the plate.

[0026] The outer side of the lifting clamping plate 3 is fixedly connected with a horizontally arranged electric telescopic rod 29, the output end of the electric telescopic rod 29 is fixedly connected with a pressing needle 25, and the end of the pressing needle 25 is located in the inner groove 27. In operation, when the detection plate is fixed at the position of the lifting clamping plate 3, the pressing needle 25 can be controlled to extrude the surface of the detection plate by the electric telescopic rod 29, the extrusion degree is controlled, and the depth of the pressing needle 25 pressed into the detection plate is calculated, so that the Brinell hardness value of the detection plate is calculated; the performance value of the metal plate is more comprehensively detected by this arrangement; meanwhile, the hardness detection can be added in the bending experiment, the plate after being bent for many times or after being heated is placed into the lifting clamping plate 3 again, the Brinell hardness is tested, and the more detailed performance value of the plate under different states can be obtained; for example, after the plate is bent, the fixed clamp one 10 is slightly loosened and still keeps fixing the plate, the lifting clamping plate 3 still keeps fixing, then the plate is pulled downward, the fixed clamp one 10 is fixed again after being pulled to the position, the lifting clamping plate 3 is unfixed and moved to the position after being bent or heated, and the hardness detection is performed on the position, so that the detection process is completed.

[0027] The bottom of the integrated plate 11 is fixedly connected with an extension box 21, the end of the extension box 21 is provided with two groups of parallel arranged recycling grooves 18, the rear end of the communication plate 23 is fixedly connected with a moving table 24, a horizontally arranged electric slide rail is installed in the recycling groove 18, the output end of the electric slide rail is fixedly connected with the moving table 24, the communication plate 23 is made of elastic metal material, and the communication plate 23 is arranged in an arc shape. In operation, the moving table 24 and the connecting plate 23 are driven by the electric sliding rail to extend from the recovery groove 18 and contact the detection plate, and the power-on heating process is completed, and the end of the connecting plate 23 is arc-shaped, which can bend when contacting the detection plate to ensure the contact and pressing of the detection plate.

[0028] The middle part of the integrated plate 11 is fixed to the upper part and is provided with a plurality of horizontally arranged optical probes one 12, and the two sides of the extension box 21 are provided with inclined optical probes two 19. In operation, the optical probes two 19 can observe and record the cracks on the surface of the detection plate when it is bent for the first time, and the optical probes one 12 can first lock the detection plate, quickly release the fixing clamp one 10 when the detection plate is bent for the first time, and observe the rebound of the detection plate. When the rebound is too large, the curved clamping plate 4 can be rotated and adjusted according to the data of the optical probes one 12. Through this setting, the performance data of the detection plate can be further increased, and the detection comprehensiveness is improved.

[0029] The rear end of the integrated plate 11 is fixed to a plurality of restraint rods 20, and the restraint rods 20 are arranged in a ring shape at equal intervals. The rear end of the extension box 21 is fixed to a power transmission rod 22 for connecting the circuit, and the front end of the sleeve 13 is provided with a restraint groove 15 matched with the restraint rod 20 and a power supply groove 14 matched with the power transmission rod 22. In operation, the restraint rod 20 and the restraint groove 15 ensure the stable rotation process of the integrated plate 11, and the power transmission rod 22 has two contacts which are in sliding fit with the power supply groove 14 to complete the current transmission without affecting the rotation process of the integrated plate 11.

[0030] The bottom plate 7 is fixed to the bottom of the support frame 2, the middle part of the front end of the bottom plate 7 is recessed, and the protective shell 1 is fixed to the outer side of the bottom plate 7. In operation, the bottom plate 7 ensures the stability of the equipment, and the protective shell 1 protects the equipment. A transparent cover can be closed at the front end of the protective shell 1. After the detection plate is placed, the equipment can be completely closed for self-detection, reducing the influence of the outside world.

[0031] In operation, the metal plate to be detected is cut into a long strip-shaped detection plate, and the thickness direction of the detection plate is directed towards the support frame 2. The detection plate is fixed by using the bending clamp plate 4 and the lifting clamp plate 3, the bending clamp plate 4 is controlled to rotate, thereby bending the detection plate. Through the reciprocating rotation of the bending clamp plate 4, the reciprocating bending effect of the detection plate can be achieved. The lifting clamp plate 3 clamps the lower part of the detection plate and applies a proper falling force to the detection plate. During the rotation and bending process of the bending clamp plate 4, the lifting clamp plate 3 will be lifted and lowered in accordance with the movement of the detection plate, but the falling pulling force remains unchanged. After the detection plate is bent multiple times, the tensile strength and other plate properties will decrease due to metal fatigue, and the detection plate will break under the action of the falling pulling force. The bending frequency and the pulling force of the lifting clamp plate 3 are recorded, thereby obtaining the fatigue performance of the metal plate. In order to improve the detection comprehensiveness, the pulling force of the lifting clamp plate 3 can be changed, for example, a pulling force of ten kilograms is used for testing first. After the detection plate breaks, the pulling force is increased or decreased, and testing is performed again. After repeating multiple times, more comprehensive data of the plate can be obtained. At the same time, the whole process is fully automatic. A longer detection plate can be prepared in advance, and a part of the detection plate is reserved below the lifting clamp plate 3. When the detection plate above breaks, the bending clamp plate 4 is released, and then the detection plate below is lifted by the lifting clamp plate 3. The bending clamp plate 4 can fix the detection plate again, and then the lifting clamp plate 3 is released. After the lifting clamp plate 3 is moved to a certain position, the detection plate is fixed again, thereby returning to the initial fixed form. In this way, only a longer detection plate needs to be prepared, and the influence of bending frequency on the performance of the plate under different pulling forces can be automatically detected in one detection without manual operation. After the detection is completed, the data is recovered. At the same time, repeated bending experiments at different temperatures have a significant impact on the performance of metal materials. Metal plates are often used in environments with large temperature differences. In order to ensure more comprehensive detection of the plate, after the room temperature detection is completed, the communication plate 23 can be used. After the detection plate is fixed, the communication plate 23 can be attached to both sides of the detection plate, and the detection plate is connected in circuit to become a resistor, thereby generating heat when current passes through, thereby heating the detection plate. When the temperature reaches the required temperature, stop heating and let the communication plate 23 leave the detection plate. Then the detection plate is bent and the data is recorded, thereby obtaining more comprehensive performance data of the metal plate.

[0032] When the bending detection is carried out on the bending clamp 4, the upper deflection table 5 is adaptively horizontally moved, so that the detection plate is kept at the bending position at the bottom of the bending clamp 4 when being bent, and the lower bending clamp 4 is kept in the vertical state. For example, when the bending clamp 4 is counterclockwise rotated, the upper deflection table 5 is driven by the screw nut mechanism to move leftward, so that the detection plate located below is not excessively bent, and the bending position is concentrated at the lower part of the bending clamp 4. In this way, the bending force can be accurately applied to the detection position, and meanwhile, the detection plate below is not affected, so that the detection plate can be kept in the unbent state before the subsequent detection.

[0033] The detection plate can be put into the middle part of the bending clamp 4 and the inner recess 27 of the lifting clamp 3 from the front of the equipment, and then the detection plate is fixed by the fixed clamp one 10 and the fixed clamp two 26. The fixed clamp one 10 and the fixed clamp two 26 are electrically driven to open and close. Through the cooperation of the two, the detection plate can be fixed, and meanwhile, the detection plate can be continuously transported upward by cooperating with the lifting clamp 3, so that the effect of changing the detection position can be achieved.

[0034] The sleeve 13 is used to fix the servo motor 17, the servo motor 17 is used to drive the integrated plate 11 and the bending clamp 4 to rotate, and meanwhile, the entire sleeve 13 can move horizontally with the upper deflection table 5, so that the bending detection process can be smoothly carried out.

[0035] The lifting clamp 3 is driven by the lifting slide rail 9 to lift, and the clamping groove 28 is used to constrain the lifting clamp 3 to ensure the stable lifting process. The surface of the lifting slide rail 9 is also provided with scales for observing the lifting amplitude of the lifting clamp 3 and the length of the detection plate.

[0036] When the detection plate is fixed on the lifting clamp 3, the pressing needle 25 can be controlled by the electric telescopic rod 29 to extrude the surface of the detection plate, the extrusion force is controlled, and the depth of the pressing needle 25 pressed into the detection plate is calculated. The depth is the same as the extension length of the electric telescopic rod 29, so that the Brinell hardness value of the detection plate can be calculated. In this way, the performance value of the metal plate can be more comprehensively detected. Meanwhile, the hardness detection can be added in the bending experiment. The plate is put into the lifting clamp 3 again after being bent for many times or being heated, and the Brinell hardness is tested, so that more detailed performance values of the plate in different states can be obtained. For example, after the plate is bent, the fixed clamp one 10 is slightly loosened to keep fixing the plate, the lifting clamp 3 is kept fixed, then the plate is pulled downward, the fixed clamp one 10 is fixed again after the plate is pulled to the position, the lifting clamp 3 is released from the fixing and is moved to the position of being bent or heated, and the hardness of the position is detected, so that the detection process is completed.

[0037] The moving table 24 and the connecting plate 23 are driven by the electric sliding rail to extend from the recovery groove 18, contact the detection plate and complete the process of power heating, the end of the connecting plate 23 is arc-shaped, which can be bent when contacting the detection plate, so that the contact with the detection plate is ensured.

[0038] The optical probe two 19 can observe and record the crack on the surface of the detection plate when the detection plate is bent for the first time; the optical probe one 12 can lock the detection plate, loosen the fixing clamp one 10 when the detection plate is bent for the first time, and observe the rebound of the detection plate; when the rebound is too large, the bending clamp plate 4 can be adjusted according to the data of the optical probe one 12; through the above setting, the performance data of the detection plate can be further increased, and the detection comprehensiveness is improved.

[0039] The binding rod 20 and the binding groove 15 are matched to ensure the stable rotation process of the integrated plate 11; the transmission rod 22 has two contacts, the two contacts are in sliding fit with the power supply groove 14 to complete the current transmission, and the rotation process of the integrated plate 11 is not affected.

[0040] The bottom plate 7 ensures the support stability of the equipment, and the protection shell 1 is used for protecting the equipment; a transparent cover can be further closed at the front end of the protection shell 1; after the detection plate is placed, the equipment can be completely closed for self-detection, and the influence of the outside world is reduced.

[0041] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A metal sheet bending detection device, characterized in that: The device includes a support frame, with a rotatable curved clamp plate installed near the top of the front end of the support frame, and a lifting clamp plate installed near the middle of the front end of the support frame. Both the curved clamp plate and the lifting clamp plate are used to fix the metal sheet. Two translatable connecting plates are installed near the bottom of the front end of the curved clamp plate. The connecting plates are used to allow current to pass through the metal sheet. A laser temperature measuring module is fixed to the bottom of the front end of the curved clamp plate, and the laser temperature measuring module is located between the two connecting plates.

2. The metal sheet bending detection device according to claim 1, characterized in that: The support frame includes an upper deflection platform and an adjustment seat. The upper deflection platform is slidably engaged with the top surface of the adjustment seat. The top of the adjustment seat is equipped with a screw and nut mechanism for driving the upper deflection platform to move horizontally. The bending clamp is installed on the upper deflection platform, and the lifting clamp is installed on the adjustment seat.

3. The metal sheet bending detection device according to claim 2, characterized in that: The bending clamp is composed of two metal plates with a gap between them. Each of the two metal plates has a fixing clamp that can be opened and closed on its opposite side. The front end of the lifting clamp has an inner groove, and fixing clamps are installed on both sides of the inner groove.

4. The metal sheet bending detection device according to claim 3, characterized in that: A sleeve is fixedly connected to the front end of the upper deflection platform. A motor slot is opened at the front end of the sleeve. A servo motor is fixedly connected in the motor slot. An integrated plate is fixedly connected to the rear end of the bending clamp. The output end of the servo motor is fixedly connected to the integrated plate.

5. The metal sheet bending detection device according to claim 4, characterized in that: The front end of the adjusting seat is fixedly connected to a vertically arranged lifting slide rail, the front end of the lifting slide rail is provided with a vertically arranged slot, the rear end of the lifting clamp is slidably engaged in the slot, and the moving end of the lifting slide rail is fixedly connected to the lifting clamp.

6. The metal sheet bending detection device according to claim 5, characterized in that: A horizontally arranged electric telescopic rod is fixed to the outside of the lifting clamp, and a pressure needle is fixed to the output end of the electric telescopic rod. The end of the pressure needle is located in the inner groove.

7. The metal sheet bending detection device according to claim 6, characterized in that: An extension box is fixed to the bottom of the integrated plate. Two sets of parallel recycling slots are opened at the end of the extension box. A moving platform is fixed to the rear end of the connecting plate. A horizontally arranged electric slide rail is installed in the recycling slot. The output end of the electric slide rail is fixed to the moving platform. The connecting plate is made of elastic metal and is arc-shaped.

8. The metal sheet bending detection device according to claim 7, characterized in that: Multiple horizontally arranged optical probes are fixedly connected to the upper middle part of the integrated plate, and inclined optical probes are installed on both sides of the extension box.

9. A metal sheet bending detection device according to claim 8, characterized in that: The rear end of the integrated plate is fixedly connected to multiple binding rods, which are arranged in a ring at equal intervals. The rear end of the extension box is fixedly connected to a power transmission rod for connecting the circuit. The front end of the sleeve is provided with a binding groove adapted to the binding rod and a power transmission groove adapted to the power transmission rod.

10. A metal sheet bending detection device according to claim 9, characterized in that: The bottom of the support frame is fixedly connected to a base plate, the front center of the base plate is recessed, and a protective shell covering the support frame is fixedly connected to the outer side of the base plate.