Device and method for detecting impact resistance of toughened glass for constructional engineering

Abstract

The invention relates to the technical field of constructional engineering material detection, in particular to a device and method for detecting the impact resistance of tempered glass for constructional engineering, and the device comprises a base, an impact generation module, a glass fixing module, a data acquisition module and a control module; the data acquisition module comprises a high-speed camera, a strain sensor and an acceleration sensor; the control module comprises a PLC fixedly arranged on the side face of the base through a mounting rod. By arranging an impact generation module, a glass fixing module, a data acquisition module and a control module, an impact drill bit can freely fall downwards at a specific speed, so that the impact drill bit falls on the surface of glass, the impact resistance of the glass is detected, and meanwhile, the surface deformation of the glass at the impact moment is recorded through a high-speed camera; dynamic stress distribution is collected through the strain sensor, and the PLC automatically judges whether the glass is broken or not and generates an impact energy-deformation quantity curve report.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building engineering material detection, in particular to a tempered glass impact resistance performance detection device and method for building engineering. BACKGROUND

[0002] Tempered glass is widely used in the field of building due to its high strength and safety, but its impact resistance directly affects the use safety. At present, the impact resistance of tempered glass is mainly detected by methods such as drop ball impact test and canister impact test. In recent years, automatic detection equipment has gradually become popular, but the existing equipment generally has defects such as inaccurate impact force control, glass fixing mode easy to cause edge stress concentration, and inability to simulate multi-angle impact. The following schemes are mainly used in the prior art to detect the impact resistance performance of tempered glass: Manual drop hammer test: a standard weight drop hammer is used to impact the glass surface from a fixed height, and whether it is broken is judged by visual observation or simple instrument. The advantage is low cost, and the disadvantage is that the impact energy is not adjustable and the result is subjective.

[0003] Pneumatic driven impact testing machine: the punch is pushed by compressed air to impact the glass, the impact speed can be adjusted but the contact time cannot be accurately controlled, and the equipment is bulky.

[0004] Electromagnetic impact table: uses electromagnets to generate controllable impact force, but there is a waveform distortion problem when high-frequency impact, and the adaptability to glass thickness is poor.

[0005] The above-mentioned methods for detecting the impact resistance performance of tempered glass have the following defects: The impact energy adjustment range is limited, the actual complex working conditions cannot be simulated, the glass clamp design is unreasonable, additional stress is easily introduced to cause test data deviation, there is a lack of high-speed camera synchronous recording system to analyze the crack propagation process, and most of the equipment cannot realize continuous multi-point impact test.

[0006] Therefore, the application provides a tempered glass impact resistance performance detection device and method for building engineering. SUMMARY

[0007] The purpose of the application is to solve at least one technical problem in the background art.

[0008] The application provides a tempered glass impact resistance performance detection device for building engineering, which comprises a base, an impact generation module, a glass fixing module, a data acquisition module and a control module. The impact generating module comprises a portal frame fixed on the upper surface of the base, and a lifting frame slidingly arranged in the inner wall of the portal frame, the inner top wall of the lifting frame is slidingly provided with a positioning cylinder, and the inside of the positioning cylinder is clamped and fixed with an impact drill bit, the impact generating module further comprises two first motors arranged on the top of the portal frame for driving the lifting frame to automatically lift up and down; The glass fixing module comprises a positioning table arranged on the upper surface of the base, and a plurality of vacuum suction cups arranged in a rectangular array on the upper surface of the positioning table, the glass fixing module further comprises four sliding cavities opened in a rectangular array on the upper surface of the positioning table, and an electric push rod fixed in the inner wall of the sliding cavity, the telescopic end of the electric push rod is fixed with an abutting plate, and the surface of the abutting plate is fixed with a rubber buffer pad; The data acquisition module comprises a high-speed camera, a strain sensor and an acceleration sensor; The control module comprises a PLC controller fixed on the side surface of the base through a mounting rod.

[0009] By adopting the above technical scheme, the impact drill bit can freely fall downward at a specific speed, so that the impact drill bit falls on the surface of the glass, and the impact resistance of the glass is detected, at the same time, the surface deformation of the glass at the moment of impact is recorded by the high-speed camera, the dynamic stress distribution is collected by the strain sensor, the PLC controller automatically determines whether the glass is broken, and an impact energy-deformation curve report is generated.

[0010] Preferably, the inner walls of the two sides of the portal frame are both provided with a strip-shaped opening, the two ends of the lifting frame are slidingly connected with the inner walls of the two strip-shaped openings respectively, the output ends of the two first motors extend into the interiors of the two strip-shaped openings and are both fixed with first threaded columns, and the upper surfaces of the two ends of the lifting frame are both provided with threaded holes threadedly connected with the outer surfaces of the two first threaded columns respectively.

[0011] By adopting the above technical scheme, the rotation of the first motor can drive the rotation of the first threaded column, so that the purpose of automatically lifting the lifting frame is achieved.

[0012] Preferably, the inner top wall of the lifting frame is provided with a strip-shaped groove, the inner wall of the strip-shaped groove is slidingly provided with a transverse sliding block, the side surface of the lifting frame is fixed with a second motor, the output end of the second motor extends into the interior of the strip-shaped groove and is fixed with a second threaded column, and the side surface of the transverse sliding block is provided with a threaded hole threadedly connected with the outer surface of the second threaded column.

[0013] By adopting the above technical scheme, the rotation of the second motor can drive the rotation of the second threaded column, the rotation of the second threaded column drives the movement of the transverse sliding block, and the movement of the transverse sliding block adjusts the transverse coordinate of the impact drill bit.

[0014] Preferably, the bottom end of the transverse slider is fixed with a longitudinal frame, the inner top wall of the longitudinal frame is slidingly provided with a longitudinal slider, the top end of the positioning cylinder is fixedly connected with the bottom end of the longitudinal slider, the outer surface of the longitudinal frame is fixedly provided with a third motor, the output end of the third motor extends to the inside of the longitudinal frame and is fixedly provided with a third threaded column, and the surface of the longitudinal slider is provided with a threaded hole in threaded connection with the outer surface of the third threaded column.

[0015] By adopting the above technical scheme, the rotation of the third motor can drive the third threaded column to rotate, and the rotation of the third threaded column can drive the longitudinal slider to move, so that the longitudinal coordinate of the impact drill bit can be adjusted.

[0016] Preferably, the outer surface of the positioning cylinder is fixedly provided with four hydraulic rods in a circumferential array, and the telescopic ends of the four hydraulic rods extend to the inside of the positioning cylinder and are fixedly provided with arc-shaped positioning plates.

[0017] By adopting the above technical scheme, the extension of the four hydraulic rods can drive the four arc-shaped positioning plates to move towards the middle at the same time, so that the impact drill bit can be effectively fixed.

[0018] Preferably, the outer surface of the gantry frame is fixedly provided with a mounting bracket, the high-speed camera is fixedly arranged at the end of the mounting bracket and faces the glass, the strain sensor is arranged on the upper surface of the positioning table and is adsorbed and attached to the non-detection surface of the glass during detection, and the acceleration sensor is arranged on the upper surface of the positioning cylinder.

[0019] By adopting the above technical scheme, the surface deformation of the glass at the moment of impact can be recorded by the high-speed camera, and the dynamic stress distribution can be collected by the strain sensor.

[0020] Preferably, the vacuum chuck is two groups, which are used for positioning two glasses respectively, and the positioning table is slidingly arranged on the upper surface of the base, the upper surface of the positioning table is provided with the surface of the base, and a switching assembly for driving the two glasses to switch is arranged on the surface of the base, the switching assembly comprises a rectangular groove arranged on the upper surface of the base, and a moving block slidingly arranged on the inner wall of the rectangular groove, and the top end of the moving block is fixedly connected with the lower surface of the positioning table.

[0021] By adopting the above technical scheme, the purpose of automatically switching the glasses that have been detected and have not been detected on the positioning table can be achieved under the action of the switching assembly.

[0022] Preferably, the side surface of the base is fixedly provided with a stepping motor, the output end of the stepping motor extends to the inside of the rectangular groove and is fixedly provided with a lead screw, the side surface of the moving block is provided with a threaded hole in threaded connection with the outer surface of the lead screw, the lower surface of the positioning table is fixedly provided with two symmetrical T-shaped sliding strips, and the upper surface of the base is provided with two T-shaped sliding grooves in sliding connection with the two T-shaped sliding strips respectively.

[0023] By adopting the technical scheme, the rotation of the stepping motor drives the rotation of the lead screw, and the rotation of the lead screw drives the movement of the moving block, so that the automatic movement of the positioning table is realized, and the stability of the positioning table is effectively ensured under the action of the two T-shaped slides.

[0024] Preferably, the inside of the positioning table is provided with a reinforcing assembly for reinforcing the glass fixed by the vacuum suction cups during the movement switching of the positioning table, the reinforcing assembly comprises a sealed cavity opened in the inside of the positioning table, the bottom ends of the plurality of vacuum suction cups extend into the inside of the sealed cavity, and the inside of the vacuum suction cup is in communication with the sealed cavity.

[0025] By adopting the technical scheme, the reinforcing assembly effectively increases the adsorption force between the vacuum suction cups and the surface of the glass, so that the purpose of further reinforcing the glass is achieved.

[0026] Preferably, the reinforcing assembly further comprises a rectangular cavity opened in the inside of the positioning table and corresponding to the sealed cavity, and a rectangular plate and a sealing plate respectively slidingly arranged on the inner wall of the rectangular cavity, opposite surfaces of the rectangular plate and the sealing plate are fixedly provided with a connecting rod, the inner top wall of the rectangular cavity is provided with a communication pipe extending into the inside of the sealed cavity, the inner wall of the rectangular cavity is rotatably provided with a transverse threaded column, the side surface of the rectangular plate is provided with a threaded hole threadedly connected with the outer surface of the transverse threaded column, the lower surface of the positioning table is provided with a connecting groove corresponding to the rectangular cavity, one end of the transverse threaded column extends into the inside of the connecting groove and is fixedly provided with a toothed disc, and the upper surface of the base is provided with a straight toothed groove meshing with the toothed disc.

[0027] By adopting the technical scheme, the purpose of effectively reinforcing the glass entering the detection area is achieved during the movement of the positioning table to realize the automatic switching of the two glasses.

[0028] The application also provides a method for detecting the impact resistance of tempered glass for construction engineering, comprising the following steps: S1, placing the glass on the surface of the vacuum suction cups on the positioning table, adsorbing and fixing the glass by the vacuum suction cups, and starting the four electric push rods to tightly abut the four rubber buffer pads around the glass; S2, setting the value of the acceleration sensor by the PLC controller to determine the impact energy, and adjusting the position of the impact drill bit; S3, driving the impact drill bit to a specified speed by the first motor, and then releasing the impact drill bit; S4, recording the surface deformation of the glass at the moment of impact by the high-speed camera, and collecting the dynamic stress distribution by the strain sensor; S5, the PLC controller automatically determines whether the glass is broken, and generates an impact energy-deformation curve report.

[0029] In summary, the present application includes at least one of the following beneficial technical effects: 1. The building engineering tempered glass impact resistance detection device and method provided by the present application, by setting the impact generation module, glass fixing module, data acquisition module and control module, when the impact resistance of the tempered glass is detected, the impact drill bit can be freely dropped downward at a certain speed, so that the impact drill bit falls on the surface of the glass, the impact resistance of the glass is detected, the surface deformation of the glass at the impact moment is recorded by the high-speed camera, the dynamic stress distribution is collected by the strain sensor, the PLC controller automatically determines whether the glass is broken, and an impact energy-deformation curve report is generated.

[0030] 2. The building engineering tempered glass impact resistance detection device and method provided by the present application, by setting the switching assembly, after one glass on the positioning table is detected, the stepper motor is started to drive the screw to rotate, the rotation of the screw drives the moving block to move, the movement of the moving block drives the positioning table to move, so that the detected glass is separated from the detection area, and the undetected glass enters the detection area, thereby effectively improving the detection efficiency.

[0031] 3. The building engineering tempered glass impact resistance detection device and method provided by the present application, by setting the reinforcing assembly, when the undetected glass follows the positioning table to enter the detection area directly below, the movement of the positioning table can drive the corresponding gear disc to rotate under the action of the straight tooth groove, the rotation of the gear disc drives the horizontal screw column to rotate, the rotation of the horizontal screw column drives the rectangular plate to move, the movement of the rectangular plate drives the sealing plate to move through the connecting rod, the movement of the sealing plate causes the rectangular cavity to inhale the inside of the sealed cavity through the communication pipe, so that negative pressure is generated in the sealed cavity, thereby the plurality of vacuum suction cups can realize effective negative pressure adsorption on the surface of the glass, and further adsorption and reinforcement of the glass placed on the vacuum suction cups is realized, thereby further ensuring the stability of the glass during detection, and when the detected glass is separated from the detection area, the gear disc can be reversed to drive the sealing plate to move reversely, so that the air in the rectangular cavity is pressed into the sealed cavity, the inside of the vacuum suction cup is inflated, thereby the vacuum suction cup and the glass are no longer adsorbed, and then the personnel can take out the glass. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a perspective structural schematic diagram of the present application; Figure 2 is a rear view structural schematic diagram of the present application; Figure 3 is a lifting frame perspective structural schematic diagram of the present application; Figure 4is a bottom view structural schematic diagram of the lifting frame of the present application; Figure 5 is a top view structural schematic diagram of the present application; Figure 6 is a bottom view structural schematic diagram of the lifting frame of the present application; Figure 5 Figure 7 is a bottom view structural schematic diagram of the base of the present application; Figure 8 is a side view structural schematic diagram of the base and the positioning table of the present application; Figure 9 is a bottom view structural schematic diagram of the lifting frame of the present application; Figure 8

[0033] BRIEF DESCRIPTION OF DRAWINGS 100, base; 200, impact generation module; 201, gantry frame; 202, lifting frame; 203, positioning cylinder; 204, impact drill bit; 205, first motor; 206, first threaded column; 207, transverse sliding block; 208, arc-shaped positioning plate; 209, second motor; 2010, second threaded column; 2011, longitudinal frame; 2012, longitudinal sliding block; 2013, third motor; 2014, third threaded column; 2015, hydraulic rod; 300, glass fixing module; 301, positioning table; 302, vacuum chuck; 303, electric push rod; 304, abutting plate; 305, rubber buffer pad; 400, data acquisition module; 401, high-speed camera; 402, strain sensor; 403, acceleration sensor; 500, control module; 501, PLC controller; 600, switching assembly; 601, moving block; 602, stepper motor; 603, lead screw; 604, T-shaped sliding bar; 700, reinforcing assembly; 701, sealed cavity; 702, rectangular cavity; 703, rectangular plate; 704, sealing plate; 705, connecting rod; 706, communication pipe; 707, transverse threaded column; 708, toothed disc; 709, straight toothed groove. DETAILED DESCRIPTION

[0034] The present application will be further described in detail below. Figures 1 to 9

[0035] Embodiment One Please pay attention to Figures 1 to 6 ​​​The utility model provides a kind of anti-impact performance detection device for toughened glass of construction engineering, including base 100, impact generation module 200, glass fixed module 300, data acquisition module 400 and control module 500;Impact generation module 200 includes gantry frame 201 being fixed on the upper surface of base 100, and lifting frame 202 being slidably arranged in the inner wall of gantry frame 201, the inner top wall of lifting frame 202 is slidably provided with positioning cylinder 203, and impact drill bit 204 is clamped and fixed in the inside of positioning cylinder 203, impact generation module 200 further includes two first motors 205 for driving lifting frame 202 to automatically lift, which are arranged at the top of gantry frame 201;Glass fixed module 300 includes positioning table 301 being arranged on the upper surface of base 100, and several vacuum chucks 302 being arranged in rectangular array on the upper surface of positioning table 301, glass fixed module 300 further includes four sliding cavities being opened in rectangular array on the upper surface of positioning table 301, and electric push rod 303 being fixed in the inner wall of sliding cavity, the telescopic end of electric push rod 303 is fixed with abutting plate 304, and rubber buffer pad 305 is fixed on the surface of abutting plate 304;Data acquisition module 400 includes high-speed camera 401, strain sensor 402 and acceleration sensor 403;Control module 500 includes PLC controller 501 being fixed on the side of base 100 by mounting rod.

[0036] Specifically, impact drill bit 204 can be made to free fall downward at a certain speed, so that impact drill bit 204 falls on the surface of glass, realizing the detection of the impact resistance of glass, while high-speed camera 401 records the deformation of glass surface at the moment of impact, strain sensor 402 collects dynamic stress distribution, and PLC controller 501 automatically determines whether the glass is broken and generates impact energy-deformation curve report.

[0037] Please refer to Figure 1 , Figure 2 The inner wall of both sides of gantry frame 201 is provided with a strip-shaped opening, and the two ends of lifting frame 202 are slidably connected with the inner walls of two strip-shaped openings, respectively, and the output ends of two first motors 205 extend into the interiors of two strip-shaped openings and are fixed with first threaded columns 206, respectively, and the upper surfaces of the two ends of lifting frame 202 are provided with threaded holes which are threadedly connected with the outer surfaces of two first threaded columns 206, respectively.

[0038] Specifically, first threaded column 206 can be rotated by the rotation of first motor 205, so as to realize the purpose of automatic lifting of lifting frame 202.

[0039] Please refer to Figure 3 , Figure 4The inner top wall of the lifting frame 202 is provided with a strip-shaped slot, the inner wall of the strip-shaped slot is slidably provided with a transverse sliding block 207, the side surface of the lifting frame 202 is fixedly provided with a second motor 209, and the output end of the second motor 209 extends to the inside of the strip-shaped slot and is fixedly provided with a second threaded column 2010. The side surface of the transverse sliding block 207 is provided with a threaded hole in threaded connection with the outer surface of the second threaded column 2010.

[0040] Specifically, the rotation of the second motor 209 can drive the second threaded column 2010 to rotate, the rotation of the second threaded column 2010 can drive the transverse sliding block 207 to move, and the movement of the transverse sliding block 207 can realize the adjustment of the transverse coordinate of the impact drill bit 204.

[0041] Please refer to Figure 3 , Figure 4 , the bottom end of the transverse sliding block 207 is fixedly provided with a longitudinal frame 2011, the inner top wall of the longitudinal frame 2011 is slidably provided with a longitudinal sliding block 2012, the top end of the positioning cylinder 203 is fixedly connected with the bottom end of the longitudinal sliding block 2012, the outer surface of the longitudinal frame 2011 is fixedly provided with a third motor 2013, and the output end of the third motor 2013 extends to the inside of the longitudinal frame 2011 and is fixedly provided with a third threaded column 2014. The surface of the longitudinal sliding block 2012 is provided with a threaded hole in threaded connection with the outer surface of the third threaded column 2014.

[0042] Specifically, the rotation of the third motor 2013 can drive the third threaded column 2014 to rotate, the rotation of the third threaded column 2014 can drive the longitudinal sliding block 2012 to move, thereby realizing the adjustment of the longitudinal coordinate of the impact drill bit 204.

[0043] Please refer to Figure 3 , Figure 4 , the outer surface of the positioning cylinder 203 is fixedly provided with four hydraulic rods 2015 in a circumferential array, and the telescopic ends of the four hydraulic rods 2015 all extend to the inside of the positioning cylinder 203 and are fixedly provided with arc-shaped positioning plates 208.

[0044] Specifically, the elongation of the four hydraulic rods 2015 can drive the four arc-shaped positioning plates 208 to move towards the middle at the same time, thereby realizing the effective fixation of the impact drill bit 204.

[0045] Please refer to Figure 3 , Figure 6 , the outer surface of the gantry frame 201 is fixedly provided with a mounting bracket, the high-speed camera 401 is fixedly arranged at the end of the mounting bracket and faces the glass, the strain sensor 402 is arranged on the upper surface of the positioning table 301 and is adsorbed and attached to the non-detection surface of the glass during detection, and the acceleration sensor 403 is arranged on the upper surface of the positioning cylinder 203.

[0046] Specifically, the deformation of the glass surface at the moment of impact can be recorded by the high-speed camera 401, and the dynamic stress distribution can be collected by the strain sensor 402.

[0047] In this embodiment, by setting the impact generating module 200, the glass fixing module 300, the data acquisition module 400 and the control module 500, when the impact resistance of the tempered glass is detected, the glass can be first placed on the vacuum chuck 302 on the positioning table 301, the vacuum chuck 302 can effectively adsorb and fix the glass, and four electric push rods 303 are started to drive four abutting plates 304 to move to the middle, so that four rubber buffer pads 305 contact the four sides of the glass, effectively absorbing the vibration of the glass edge. After setting the value of the acceleration sensor 403 through the PLC controller 501, the first motor 205 is started to drive the first threaded column 206 to rotate, the first threaded column 206 drives the lifting frame 202 to automatically move upward to a specified height, and then the first motor 205 is reversed to drive the lifting frame 202 to move downward to drive the impact drill bit 204 to move downward to a specified speed. At this time, the acceleration sensor 403 transmits a signal to the PLC controller 501, the PLC controller 501 automatically controls the electric push rod 303 to retract and closes the first motor 205, so that the impact drill bit 204 is released and freely falls downward at a specific speed, so that the impact drill bit 204 falls on the surface of the glass, realizing the detection of the impact resistance of the glass. At the same time, the high-speed camera 401 records the deformation of the glass surface at the moment of impact, the strain sensor 402 collects the dynamic stress distribution, the PLC controller 501 automatically determines whether the glass is broken, and generates an impact energy-deformation curve report.

[0048] Embodiment two On the basis of embodiment one, referring to Figures 5 to 9 , and different from embodiment one: Please refer to Figure 5 , Figure 7 , the vacuum chuck 302 is two groups, which are respectively used for positioning two glasses, and the positioning table 301 is slidingly arranged on the upper surface of the base 100. The upper surface of the positioning table 301 is provided with a switching assembly 600 for driving two glasses to switch, the switching assembly 600 includes a rectangular groove opened on the upper surface of the base 100, and a moving block 601 slidingly arranged on the inner wall of the rectangular groove. The top end of the moving block 601 is fixedly connected with the lower surface of the positioning table 301.

[0049] Specifically, the purpose of automatically switching the glass on the positioning table 301 between the detected and undetected can be achieved under the action of the switching assembly 600.

[0050] Please refer to Figure 7 , Figure 8The side surface of the base 100 is fixed with a stepping motor 602, the output end of the stepping motor 602 extends to the inside of the rectangular groove and is fixed with a lead screw 603, the side surface of the moving block 601 is provided with a threaded hole in threaded connection with the outer surface of the lead screw 603, the lower surface of the positioning table 301 is fixed with two symmetrical T-shaped sliding strips 604, and the upper surface of the base 100 is provided with T-shaped sliding grooves in sliding connection with the two T-shaped sliding strips 604 respectively.

[0051] Specifically, the rotation of the stepping motor 602 can drive the rotation of the lead screw 603, the rotation of the lead screw 603 can drive the movement of the moving block 601, the automatic movement of the positioning table 301 is realized, and the stability of the positioning table 301 can be effectively ensured under the action of the two T-shaped sliding strips 604.

[0052] Among them, the switching assembly 600 is arranged, after one glass on the positioning table 301 is detected, the stepping motor 602 is started to drive the rotation of the lead screw 603, the rotation of the lead screw 603 drives the movement of the moving block 601, the movement of the moving block 601 drives the movement of the positioning table 301, so that the detected glass is separated from the detection area, and the undetected glass enters the detection area, thereby effectively improving the detection efficiency.

[0053] Please refer to Figure 8 , Figure 9 The inside of the positioning table 301 is provided with a reinforcing assembly 700 for reinforcing the glass fixed by the vacuum suction cup 302 in the process of moving and switching of the positioning table 301, the reinforcing assembly 700 comprises a sealing cavity 701 provided in the inside of the positioning table 301, the bottom ends of the plurality of vacuum suction cups 302 extend to the inside of the sealing cavity 701, and the inside of the vacuum suction cup 302 is in communication with the sealing cavity 701.

[0054] Specifically, the reinforcing assembly 700 can effectively increase the adsorption force between the vacuum suction cup 302 and the glass surface, so as to further reinforce the glass.

[0055] Please refer to Figure 8 , Figure 9The reinforcing assembly 700 further comprises a rectangular cavity 702 formed in the positioning table 301 and corresponding to the sealed cavity 701, and a rectangular plate 703 and a sealing plate 704 respectively slidably arranged on the inner wall of the rectangular cavity 702, opposite surfaces of the rectangular plate 703 and the sealing plate 704 are fixedly provided with a connecting rod 705, the inner top wall of the rectangular cavity 702 is provided with a communication pipe 706 extending into the interior of the sealed cavity 701, the inner wall of the rectangular cavity 702 is rotatably provided with a transverse threaded column 707, the side surface of the rectangular plate 703 is formed with a threaded hole threadedly connected with the outer surface of the transverse threaded column 707, the lower surface of the positioning table 301 is formed with a connecting groove corresponding to the rectangular cavity 702, one end of the transverse threaded column 707 extends into the interior of the connecting groove and is fixedly provided with a tooth disc 708, and the upper surface of the base 100 is formed with a straight toothed groove 709 meshing with the tooth disc 708.

[0056] Specifically, the glass entering the detection area can be effectively reinforced during the movement of the positioning table 301 and the automatic switching of the two glasses.

[0057] In the process of switching the glass to be detected and the glass detected, when the glass to be detected follows the positioning table 301 to enter the position directly below the detection area, the movement of the positioning table 301 can drive the tooth disc 708 corresponding to the glass to be detected to rotate under the action of the straight toothed groove 709, the rotation of the tooth disc 708 drives the transverse threaded column 707 to rotate, the rotation of the transverse threaded column 707 drives the rectangular plate 703 to move, the movement of the rectangular plate 703 drives the sealing plate 704 to move through the connecting rod 705, the movement of the sealing plate 704 causes the rectangular cavity 702 to inhale the interior of the sealed cavity 701 through the communication pipe 706, so that the negative pressure is generated in the sealed cavity 701, thereby enabling the plurality of vacuum suction cups 302 to effectively adsorb the surface of the glass under negative pressure, and further achieving the purpose of further adsorbing and reinforcing the glass placed on the vacuum suction cup 302, thereby further ensuring the stability of the glass during detection, and when the glass detected leaves the detection area, the tooth disc 708 can be reversely rotated, thereby driving the sealing plate 704 to move reversely, so that the air in the rectangular cavity 702 is pressed into the sealed cavity 701, thereby achieving the purpose of inflating the interior of the vacuum suction cup 302, so that the vacuum suction cup 302 is no longer adsorbed with the glass, thereby facilitating personnel to take out the glass.

[0058] The application also provides a tempered glass impact resistance detection method for construction engineering, comprising the following steps: S1, placing the glass on the surface of the vacuum suction cup 302 on the positioning table 301, adsorbing and fixing the glass through the vacuum suction cup 302, and starting the four electric push rods 303 to make the four rubber buffer pads 305 abut against the four sides of the glass; S2, set the value of the acceleration sensor 403 by the PLC controller 501 to determine the impact energy, while adjusting the position of the impact drill 204; S3, the first motor 205 drives the impact drill 204 to move to the specified speed, and then releases the impact drill 204; S4, record the deformation of the glass surface at the moment of impact by the high-speed camera 401, and collect the dynamic stress distribution by the strain sensor 402; S5, the PLC controller 501 automatically determines whether the glass is broken, and generates an impact energy-deformation curve report.

[0059] Working principle: In the impact resistance performance test of tempered glass, the glass can be placed on the vacuum chuck 302 on the positioning table 301 first, so that the vacuum chuck 302 effectively adsorbs and fixes the glass, and four electric push rods 303 are started to drive four abutting plates 304 to move to the middle, so that four rubber buffer pads 305 contact the four sides of the glass, effectively absorbing the vibration of the glass edge. Then set the value of the acceleration sensor 403 through the PLC controller 501, and start the first motor 205 to drive the first screw column 206 to rotate. After the first screw column 206 rotates and drives the lifting frame 202 to automatically move upward to a specified height, the first motor 205 is reversed to drive the lifting frame 202 to move downward to drive the impact drill bit 204 to move downward to a specified speed. At this time, the acceleration sensor 403 transmits a signal to the PLC controller 501, which automatically controls the electric push rod 303 to retract and closes the first motor 205, so that the impact drill bit 204 is released and freely falls downward at a certain speed, so that the impact drill bit 204 falls on the surface of the glass, realizing the impact resistance performance test of the glass. At the same time, the high-speed camera 401 records the deformation of the glass surface at the moment of impact, the strain sensor 402 collects dynamic stress distribution, the PLC controller 501 automatically determines whether the glass is broken, and generates an impact energy-deformation curve report. Moreover, after the glass on the positioning table 301 is detected, the stepper motor 602 is started to drive the lead screw 603 to rotate, the rotation of the lead screw 603 drives the moving block 601 to move, and the movement of the moving block 601 drives the positioning table 301 to move, so that the detected glass is separated from the detection area, and the undetected glass enters the detection area, thereby effectively improving the detection efficiency. When the stepper motor 602 is started to realize the switching of the detected glass and the undetected glass, when the undetected glass follows the positioning table 301 to enter the detection area directly below, the movement of the positioning table 301 can drive the tooth disc 708 corresponding to the undetected glass to rotate under the action of the straight tooth groove 709. The rotation of the tooth disc 708 drives the horizontal screw column 707 to rotate, and the rotation of the horizontal screw column 707 drives the rectangular plate 703 to move. The movement of the rectangular plate 703 drives the sealing plate 704 to move through the connecting rod 705. The movement of the sealing plate 704 causes the rectangular cavity 702 to suck air into the sealing cavity 701 through the communication pipe 706, so that negative pressure is generated in the sealing cavity 701. Therefore, a plurality of vacuum chucks 302 can effectively adsorb the glass surface under negative pressure, thereby achieving the purpose of further adsorbing and reinforcing the glass placed on the vacuum chuck 302, and further ensuring the stability of the glass during detection. When the detected glass is separated from the detection area, the tooth disc 708 is reversed to drive the sealing plate 704 to move reversely, so that the air in the rectangular cavity 702 is pressed into the sealing cavity 701, thereby achieving the purpose of inflating the inside of the vacuum chuck 302, so that the vacuum chuck 302 and the glass are no longer adsorbed, thereby facilitating personnel to take out the glass.

[0060] The embodiments of the present application are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, wherein the same parts are denoted by the same reference numerals. Therefore, any equivalent changes made on the structure, shape, and principle of the present application should be covered by the protection scope of the present application.

Claims

1. A device for testing the impact resistance of tempered glass used in building construction, characterized in that, It includes a base (100), an impact generating module (200), a glass fixing module (300), a data acquisition module (400), and a control module (500); The impact generating module (200) includes a gantry frame (201) fixed on the upper surface of the base (100) and a lifting frame (202) slidably disposed on the inner wall of the gantry frame (201). A positioning cylinder (203) is slidably disposed on the inner top wall of the lifting frame (202), and an impact drill bit (204) is clamped and fixed inside the positioning cylinder (203). The impact generating module (200) also includes two first motors (205) disposed on the top of the gantry frame (201) for driving the lifting frame (202) to automatically lift and lower. The glass fixing module (300) includes a positioning platform (301) disposed on the upper surface of the base (100), and a plurality of vacuum suction cups (302) arranged in a rectangular array on the upper surface of the positioning platform (301). The glass fixing module (300) also includes four sliding cavities arranged in a rectangular array on the upper surface of the positioning platform (301), and an electric push rod (303) fixed to the inner wall of the sliding cavity. The telescopic end of the electric push rod (303) is fixed with a pressing plate (304), and a rubber buffer pad (305) is fixed on the surface of the pressing plate (304). The data acquisition module (400) includes a high-speed camera (401), a strain sensor (402), and an acceleration sensor (403). The control module (500) includes a PLC controller (501) fixed to the side of the base (100) by a mounting rod.

2. The impact resistance testing device for tempered glass used in building construction according to claim 1, characterized in that, The inner walls of both sides of the gantry frame (201) are provided with strip-shaped openings. The two ends of the lifting frame (202) are slidably connected to the inner walls of the two strip-shaped openings respectively. The output ends of the two first motors (205) extend into the interior of the two strip-shaped openings and are each fixed with a first threaded post (206). The upper surfaces of both ends of the lifting frame (202) are provided with threaded holes that are threadedly connected to the outer surfaces of the two first threaded posts (206) respectively.

3. The device for testing the impact resistance of tempered glass for building engineering according to claim 1, characterized in that, The inner top wall of the lifting frame (202) is provided with a strip groove, and a horizontal slider (207) is slidably provided on the inner wall of the strip groove. A second motor (209) is fixedly provided on the side of the lifting frame (202), and the output end of the second motor (209) extends into the interior of the strip groove and is fixedly provided with a second threaded post (2010). The side of the horizontal slider (207) is provided with a threaded hole that is threadedly connected to the outer surface of the second threaded post (2010).

4. The impact resistance testing device for tempered glass used in building construction according to claim 3, characterized in that, The bottom end of the horizontal slider (207) is fixedly provided with a longitudinal frame (2011), and the inner top wall of the longitudinal frame (2011) is slidably provided with a longitudinal slider (2012). The top end of the positioning cylinder (203) is fixedly connected to the bottom end of the longitudinal slider (2012). The outer surface of the longitudinal frame (2011) is fixedly provided with a third motor (2013), and the output end of the third motor (2013) extends into the interior of the longitudinal frame (2011) and is fixedly provided with a third threaded post (2014). The surface of the longitudinal slider (2012) is provided with a threaded hole that is threadedly connected to the outer surface of the third threaded post (2014).

5. The impact resistance testing device for tempered glass used in building construction according to claim 1, characterized in that, The outer surface of the positioning cylinder (203) is fixed with four hydraulic rods (2015) in a circumferential array, and the telescopic ends of the four hydraulic rods (2015) extend into the interior of the positioning cylinder (203) and are fixed with an arc-shaped positioning plate (208).

6. The device for testing the impact resistance of tempered glass for building engineering according to claim 1, characterized in that, The outer surface of the gantry frame (201) is fixed with a mounting bracket. The high-speed camera (401) is fixed at the end of the mounting bracket and faces the glass. The strain sensor (402) is set on the upper surface of the positioning platform (301) and adsorbs and adheres to the non-detection surface of the glass during detection. The acceleration sensor (403) is set on the upper surface of the positioning cylinder (203).

7. The device for testing the impact resistance of tempered glass for building engineering according to claim 1, characterized in that, The vacuum suction cups (302) are in two sets, used to position the two glass pieces respectively. The positioning platform (301) is slidably disposed on the upper surface of the base (100). The upper surface of the positioning platform (301) is provided with a switching component (600) for driving the two glass pieces to switch. The switching component (600) includes a rectangular groove opened on the upper surface of the base (100) and a moving block (601) slidably disposed on the inner wall of the rectangular groove. The top of the moving block (601) is fixedly connected to the lower surface of the positioning platform (301).

8. The device for testing the impact resistance of tempered glass for building engineering according to claim 7, characterized in that, A stepper motor (602) is fixedly mounted on the side of the base (100). The output end of the stepper motor (602) extends into the interior of the rectangular groove and is fixedly mounted with a lead screw (603). The side of the moving block (601) is provided with a threaded hole that is threadedly connected to the outer surface of the lead screw (603). Two symmetrical T-shaped slide bars (604) are fixedly mounted on the lower surface of the positioning table (301). The upper surface of the base (100) is provided with T-shaped slide grooves that are slidably connected to the two T-shaped slide bars (604) respectively.

9. A device for testing the impact resistance of tempered glass for building construction as described in claim 8, characterized in that, The positioning platform (301) is provided with a reinforcement component (700) for reinforcing the glass fixed by the vacuum suction cup (302) during the movement and switching of the positioning platform (301). The reinforcement component (700) includes a sealed cavity (701) opened inside the positioning platform (301). The bottom ends of several vacuum suction cups (302) extend into the interior of the sealed cavity (701), and the interior of the vacuum suction cups (302) communicates with the sealed cavity (701). The reinforcement assembly (700) further includes a rectangular cavity (702) formed inside the positioning platform (301) and corresponding to the sealing cavity (701), and a rectangular plate (703) and a sealing plate (704) slidably disposed on the inner wall of the rectangular cavity (702). A connecting rod (705) is fixedly provided on the opposite surfaces of the rectangular plate (703) and the sealing plate (704). A connecting pipe (706) extending into the sealing cavity (701) is provided on the inner top wall of the rectangular cavity (702). The inner wall of the rectangular plate (702) is rotatably provided with a transverse threaded column (707). The side of the rectangular plate (703) is provided with a threaded hole that is threaded to the outer surface of the transverse threaded column (707). The lower surface of the positioning table (301) is provided with a connecting groove corresponding to the rectangular cavity (702). One end of the transverse threaded column (707) extends into the interior of the connecting groove and is fixedly provided with a toothed disc (708). The upper surface of the base (100) is provided with a straight toothed groove (709) that meshes with the toothed disc (708).

10. A method for testing the impact resistance of tempered glass used in building construction, characterized in that, Includes the following steps: S1. Place the glass on the surface of the vacuum suction cup (302) on the positioning platform (301), and use the vacuum suction cup (302) to fix the glass by adsorption, and start the four electric push rods (303) to make the four rubber buffer pads (305) press against the glass from all sides. S2. The impact energy is determined by setting the value of the acceleration sensor (403) through the PLC controller (501), and the position of the impact drill bit (204) is adjusted at the same time. S3. After the first motor (205) drives the impact drill bit (204) to move to the specified speed, the impact drill bit (204) is released. S4. Record the deformation of the glass surface at the moment of impact using a high-speed camera (401) and collect the dynamic stress distribution using a strain sensor (402); S5, PLC controller (501) automatically determines whether the glass is broken and generates an impact energy-deformation curve report.

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