Testing device and testing method for detecting tensile capacity of laser film

Abstract

The invention belongs to the technical field of laser film tensile capacity detection, and particularly relates to a testing device for laser film tensile capacity detection, which comprises a tensile testing machine, the tensile testing machine comprises a bottom plate, a control table is fixedly mounted at the right end of the top surface of the bottom plate, and a traction mechanism is fixedly mounted at the left end of the top surface of the bottom plate; a lifting mechanism is arranged in the traction mechanism, a traction block is installed on the lifting mechanism, and an adjusting mechanism is installed on the front side face of the traction block. The inclination state of the laser film in the front-back direction can be monitored in real time through the adjusting mechanism, the first detection head and the second detection head, the adjusting block is driven by the adjusting motor to move front and back along the track, the front-back inclination deviation of the laser film is automatically corrected, and it is ensured that the laser film is in the vertical state in the front-back direction in the stretching process; stress concentration caused by lateral component force generated by front-back inclination is avoided, it is guaranteed that tension data collected by the intelligent sensor truly reflect the uniform stress condition of the laser film, and the accuracy of detection data is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of laser film tensile strength testing technology, and in particular to a testing device and testing method for testing the tensile strength of laser films. Background Technology

[0002] Currently, the mainstream equipment in the field of tensile strength testing of laser films is based on a universal testing machine. Its typical structure includes a frame, a traction drive assembly, a fixed clamping fixture, and a detection module integrating intelligent sensors. During testing, the laser film sample is fixed to the upper and lower clamping ends of the equipment through the clamping fixture. The traction drive assembly is started to apply axial tension at a constant speed. The intelligent sensor collects data such as tension and displacement in real time and transmits them to the control terminal. After data analysis, mechanical performance indicators such as tensile strength and elongation at break are obtained.

[0003] However, existing testing devices for tensile strength testing of laser films still have significant shortcomings in practical applications: On the one hand, the clamping fixtures of the equipment lack an attitude adjustment structure, and the laser film is prone to tilting in the front-back and left-right directions during installation. This causes the force data collected by the intelligent sensor to deviate from the actual uniform stress state of the sample, resulting in a significant increase in the error of the test results, and even failing to reflect the true mechanical properties of the laser film. On the other hand, traditional clamping fixtures mostly use a single mechanical extrusion method, which has poor adaptability to thin laser films and is prone to insecure clamping. The probability of sample slippage during testing is high, which not only interrupts the testing process but may also damage the detection element of the intelligent sensor due to sudden force fluctuations. At the same time, the uneven force on the laser film in the tilted state may cause it to break prematurely in areas that are not weak in the material, further leading to the invalidation of the test data.

[0004] Therefore, we propose a testing device for detecting the tensile strength of laser films. Summary of the Invention

[0005] To overcome the above-mentioned shortcomings in the prior art, the present invention aims to provide a laser film tensile strength testing device that can automatically correct the tilt in the front-back and left-right directions during the installation of the laser film, achieve double stable clamping to prevent the sample from slipping, and at the same time ensure the accuracy of the detection data of the intelligent sensor, thereby improving the detection efficiency and the reliability of the results.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows:

[0007] A testing device for detecting the tensile strength of a laser film includes a tensile testing machine. The tensile testing machine includes a base plate, a control console fixedly installed at the right end of the top surface of the base plate, and a traction mechanism fixedly installed at the left end of the top surface of the base plate. The traction mechanism has a lifting mechanism inside, a traction block installed on the lifting mechanism, an adjustment mechanism installed on the front side of the traction block, and a correction mechanism located in front of the traction mechanism on the top surface of the base plate. Both the bottom surface of the adjustment mechanism and the top surface of the correction mechanism have clamping mechanisms. The laser film is clamped between the two clamping mechanisms. The adjustment mechanism adjusts the tilt of the laser film in the front-back direction, and the correction mechanism adjusts the tilt of the laser film in the left-right direction. A monitoring mechanism located below the adjustment mechanism is located on the front side of the traction mechanism, and the monitoring mechanism monitors the tilt of the laser film in the left-right direction. Leveling feet are installed at the four corners of the bottom surface of the base plate.

[0008] Preferably, the adjusting mechanism includes an adjusting block located in front of the pulling block. Two symmetrical through holes are formed on the adjusting block, and two rollers are symmetrically mounted on the inner walls of the through holes. A track is inserted into the through holes, located below the rollers. The end face of the track is U-shaped, and the bottom of the rollers is inserted into the track. The rollers travel on the bottom surface of the track cavity. The rear end of the track is fixedly connected to the front side of the pulling block. A baffle is provided on the front side of the track, and two U-shaped grooves are formed on the surface of the baffle near the track. The free ends of the two tracks are respectively inserted into the two U-shaped grooves and fixed with bolts. A track located in the middle position is fixedly inserted into the bottom of the front side of the adjusting block. The threaded tube extends from the rear end of the adjusting block. An adjusting screw is installed inside the threaded tube with a threaded fit. The rear end of the adjusting screw extends from the rear end of the threaded tube and is fixedly connected to an adjusting motor. The adjusting motor is bolted to the front side of the pulling block. A pressure sensor located in the middle of the adjusting block is fixedly installed on the bottom surface of the adjusting block. The bottom end of the pressure sensor is fixed to the top of the corresponding clamping mechanism. The pressure sensor is electrically connected to the control console. A protective shell is fitted over the adjusting block. An adapter hole is opened on the rear end of the protective shell. The track and the adjusting motor are inserted into the adapter hole. The rear end of the protective shell is fixedly connected to the front side of the pulling block.

[0009] Preferably, the correction mechanism includes a correction strip and a correction block. The bottom surface of the correction strip is fixedly connected to the top surface of the base plate and located in front of the traction mechanism. The front side of the correction strip is parallel to the front side of the traction mechanism. A side strip is fixedly connected to the top surface of the correction strip. The front and rear sides of the correction strip are symmetrical about the midpoint of the correction strip. A correction groove is formed in the middle of the top surface of the side strip. The bottom end of the correction groove extends downward into the interior of the correction strip. A correction screw is rotatably installed on the right side of the cavity of the correction groove. The other end of the correction screw extends out from the left side of the correction strip and is fixed. A straightening motor is fixedly installed, and the straightening motor bolt is installed on the left end face of the straightening strip. A displacement block is slidably inserted into the straightening groove. A displacement screw hole is opened inside the displacement screw hole. The straightening screw is movably inserted into the displacement screw hole and threaded. A T-shaped hole is opened inside the straightening block. The bottom end of the T-shaped hole is open and the opening is located on the bottom surface of the straightening block. The straightening strip is inserted into the opening at the bottom end of the T-shaped hole. The side strip is inserted into the T-shaped hole. The top of the displacement block is connected to the top surface of the inner cavity of the T-shaped hole. The corresponding clamping mechanism is installed on the top surface of the straightening block.

[0010] Preferably, the top surface of the displacement block is provided with an adapter groove, and an adapter block is slidably inserted into the adapter groove. The top of the adapter block is fixed to the top surface of the T-shaped hole cavity.

[0011] Preferably, three spherical grooves are equally spaced on the front and rear edges of the top surface of the T-shaped hole, and a ball bearing is rotatably installed inside the spherical groove. An arc groove is formed on the front and rear edges of the top surface of the side strip, and the ball bearing rolls inside the arc groove.

[0012] Preferably, the clamping mechanism includes a base block. The adjusting mechanism is fixedly installed on the base block of the clamping mechanism at the bottom of the pressure sensor. The correcting mechanism is fixedly connected to the base block of the clamping mechanism on the top surface of the correcting block. Opening holes are provided on the two adjacent surfaces of the two base blocks. The opening holes extend in the left and right direction. Two mounting holes are symmetrically provided on the front side of the base block. The other end of the two mounting holes passes through the base block. Clamping cylinders are fixedly inserted into the front and rear ends of the inner cavity of the mounting holes. The clamping cylinders are electrically connected to the control console. The ends of the extension rods on the four clamping cylinders extend into the inner cavity of the opening holes and are fixedly connected to clamping plates. The ends of the extension rods inside the two clamping cylinders on the same side of the opening holes are fixedly connected to the same clamping plate. The clamping plate is movably inserted into the inner cavity of the opening hole. The two clamping plates cooperate to clamp the end of the laser film.

[0013] Preferably, the front side of the base block has a threaded hole located between two assembly holes. The threaded hole passes through the base block, and the opening hole divides the threaded hole into two parts. Clamping screws are threadedly installed inside both parts of the threaded hole. A rotating cap is fixedly connected to the end of the clamping screw on the front side of the base block away from the base block. Rotating columns are rotatably installed at both ends of the two clamping screws that are close to each other. Fixing holes are opened on both clamping plates, and the rotating columns are rotatably inserted into the fixing holes. Receiving holes are opened on both the front and rear sides of the opening hole. The two rotating columns are rotatably inserted into the two receiving holes respectively. The two rotating columns initially clamp and fix the laser film.

[0014] Preferably, an auxiliary plate is fixedly connected to the end of the clamping plate away from the base block, and the auxiliary plate is slidably connected to the end face of the free end of the base block.

[0015] Preferably, each of the two clamping plates has a clamping strip fixedly connected to its top on both sides that are close to each other. The clamping strip is made of elastic material, and the two clamping strips clamp the laser film.

[0016] Preferably, multiple anti-detachment cones are fixedly connected at equal distances on two surfaces of the two clamping plates that are close to each other, and the anti-detachment cones on the two surfaces are staggered.

[0017] Preferably, a first probe and a second probe located behind the opening are fixedly connected to the bottom surface of the base block at the bottom of the adjustment block. A fixed insertion hole is provided on the corresponding auxiliary plate. The first probe and the second probe are both inserted into the fixed insertion hole. The free ends of the first probe and the second probe are both inclined towards the rear side of the laser film. The angle between the axis of the first probe and the bottom surface of the base block is 30 degrees, and the angle between the axis of the second probe and the bottom surface of the base block is 60 degrees.

[0018] Preferably, the device further includes a compensation mechanism, which comprises four sliding holes. All four sliding holes are located on the bottom surface of the correcting block and communicate with the T-shaped hole. The four sliding holes are divided into two groups of two, with the two groups of sliding holes symmetrical about the opening of the T-shaped hole. A sliding rod is slidably inserted into each of the four sliding holes. A stop cap is fixedly connected to the bottom end of each of the four sliding rods. A preload spring is sleeved on the outside of each of the four sliding rods, located inside the T-shaped hole. The bottom end of the preload spring abuts against the bottom surface of the inner cavity of the T-shaped hole. The top ends of two sliding rods on the same side of the T-shaped hole opening are fixedly connected to the same compensation strip. The top end of the preload spring abuts against the bottom surface of the compensation strip. An inserting hole is provided on the top surface of the compensation strip, and a ball is inserted inside the inserting hole. An arc-shaped track groove is provided on the bottom surface of the side strip, and the ball rolls inside the arc-shaped track groove.

[0019] Preferably, the bottom surface of the correcting block has two fixing screw holes, which are symmetrical about the opening of the T-shaped hole. The fixing screw holes are threadedly fitted with compensating screws. The top ends of the two compensating screws are respectively abutted against the middle of the bottom surface of the two compensating bars. The bottom ends of the two compensating screws are fixedly connected to a winding wheel. The outside of the winding wheel is wound with a force line. The free end of the force line is fixedly connected to a pre-tension spring. The other end of the pre-tension spring is provided with a hook, which is hung on the slide bar at one end of the compensating bar.

[0020] Preferably, the monitoring mechanism includes a monitoring strip, which is fixedly connected to the left edge of the front side of the traction mechanism. A monitoring block is provided on the right side of the monitoring strip. Two through holes are symmetrically opened inside the monitoring block, and guide rods are slidably inserted into each of the two through holes. The left ends of the two guide rods are fixedly connected to the right side of the monitoring strip. A third probe and a fourth probe are fixedly installed at the upper and lower ends of the front side of the monitoring block, respectively. The third probe and the fourth probe are electrically connected to the control console. A drive screw hole is opened in the middle of the monitoring block, and a drive screw is installed inside the drive screw hole with a threaded fit. The left end of the drive screw is rotatably installed on the right side of the monitoring strip. A reinforcing strip is movably sleeved on the right end of the drive screw, and the reinforcing strip is fixedly connected to the right edge of the front side of the traction mechanism. The right ends of the two guide rods are fixedly connected to the left side of the reinforcing strip. A drive motor is fixedly installed on the right end of the drive screw, and the drive motor is bolted to the right side of the reinforcing strip. A fifth probe is fixedly installed on the left side of the reinforcing strip, and the other end of the fifth probe points to the right side of the monitoring block.

[0021] Preferably, a test method for detecting the tensile strength of laser films includes the following steps:

[0022] S: Use two clamping mechanisms to clamp the two ends of the laser film respectively;

[0023] S: Then, the tensile testing machine is used to start the testing process. The tensile testing machine, clamping mechanism, adjustment mechanism, correction mechanism, compensation mechanism and monitoring mechanism work together to automatically complete the test.

[0024] S: Inspection complete. Remove the laser film from the two clamping mechanisms.

[0025] The beneficial effects of this invention are as follows:

[0026] 1. This invention, through an adjustment mechanism and a first and second probe, can monitor the tilt state of the laser film in the front-back direction in real time. By using an adjustment motor to drive the adjustment block to move back and forth along the track, the front-back tilt deviation of the laser film is automatically corrected, ensuring that the laser film is vertical in the front-back direction during the stretching process. This avoids stress concentration caused by lateral force due to the front-back tilt, and ensures that the tension data collected by the intelligent sensor truly reflects the uniform stress of the laser film, significantly improving the accuracy of the detection data.

[0027] 2. This invention uses the third and fourth probes of the monitoring mechanism to capture the tilt signal of the laser film in the left and right directions in real time. Combined with the displacement data fed back by the fifth probe, the control console accurately calculates the tilt degree. Then, the correction motor drives the correction block to move left and right, which drives the bottom of the laser film to adjust synchronously. This completely eliminates the installation offset in the left and right directions, so that the laser film is always subjected to axial force. This avoids the distortion of tensile strength test values ​​caused by left and right tilt, and further ensures the reliability of the test results.

[0028] 3. This invention achieves initial limiting clamping through the rotating column of the clamping mechanism, and then the clamping cylinder drives the clamping plate to form a double stable clamping with the elastic clamping strip and the misaligned anti-detachment cone. The anti-detachment cone penetrates the laser film to form an anchor, effectively preventing the sample from slipping during the test. At the same time, the rolling ball of the compensation mechanism and the rolling ball of the correction mechanism use rolling friction instead of sliding friction, which significantly reduces the frictional resistance and wear in the structural movement. In addition, the auxiliary plate avoids frictional damage caused by the laser film embedding gap. This not only ensures clamping stability, but also eliminates detection errors caused by friction factors, and improves the smoothness of the test process and the accuracy of the data. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0030] Figure 2 For the present invention Figure 1 A three-dimensional structural diagram of the orthodontic mechanism;

[0031] Figure 3 For the present invention Figure 2 A schematic diagram of the three-dimensional structure from another perspective;

[0032] Figure 4 For the present invention Figure 2 A schematic diagram of the split structure;

[0033] Figure 5 For the present invention Figure 4 A three-dimensional structural diagram of the central correction block;

[0034] Figure 6 For the present invention Figure 4 A three-dimensional structural diagram of the middle clamping plate;

[0035] Figure 7 For the present invention Figure 1 A three-dimensional structural diagram of the central adjustment mechanism;

[0036] Figure 8 For the present invention Figure 7 A schematic diagram of the split structure;

[0037] Figure 9 For the present invention Figure 8 A schematic diagram of the three-dimensional structure from another perspective;

[0038] Figure 10 For the present invention Figure 4 A three-dimensional structural diagram of the corrective strip;

[0039] Figure 11 For the present invention Figure 4 A three-dimensional structural diagram of the mid-displacement block;

[0040] Figure 12 For the present invention Figure 4 A three-dimensional structural diagram of the compensation mechanism;

[0041] Figure 13 For the present invention Figure 1 A three-dimensional structural diagram of the monitoring agency.

[0042] In the diagram: 1. Tensile testing machine; 101. Base plate; 102. Control console; 103. Traction mechanism; 104. Traction block; 105. Leveling foot;

[0043] 2. Clamping mechanism; 201. Base block; 202. Opening hole; 203. Assembly hole; 204. Clamping cylinder; 205. Clamping plate; 206. Clamping screw; 207. Threaded hole; 208. Rotating cap; 209. Fixing hole; 210. Rotating column; 211. Receiving hole; 212. Auxiliary plate; 213. Clamping strip; 214. Anti-disengagement cone;

[0044] 3. Adjustment mechanism; 301. Adjustment block; 302. Through hole; 303. Roller; 304. Track; 305. Baffle; 306. Threaded tube; 307. Adjustment screw; 308. Adjustment motor; 309. Protective shell; 310. Adapter hole; 311. Fixing socket; 312. First probe; 313. Second probe;

[0045] 4. Correction mechanism; 401. Correction strip; 402. Side strip; 403. Correction groove; 404. Correction screw; 405. Correction motor; 406. Correction block; 407. T-hole; 408. Spherical groove; 409. Ball bearing; 410. Arc groove; 411. Displacement block; 412. Displacement screw hole; 413. Adaptive groove; 414. Adaptive block;

[0046] 5. Compensation mechanism; 501. Sliding hole; 502. Sliding rod; 503. Stop cap; 504. Preload spring; 505. Compensating strip; 506. Mounting hole; 507. Ball; 508. Arc track groove; 509. Fixing screw hole; 510. Compensating screw; 511. Winding wheel; 512. Gravity line; 513. Pretension spring;

[0047] 6. Monitoring mechanism; 601. Monitoring strip; 602. Monitoring block; 603. Through hole; 604. Guide rod; 605. Third probe; 606. Fourth probe; 607. Drive screw hole; 608. Drive screw; 609. Reinforcing strip; 610. Drive motor; 611. Fifth probe. Detailed Implementation

[0048] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0049] In this embodiment, refer to Figure 1-13 This solution provides a testing device for detecting the tensile strength of laser film, which includes a tensile testing machine 1. The tensile testing machine 1 includes a base plate 101, a control console 102 fixedly installed on the right end of the top surface of the base plate 101, and a tensioning mechanism 103 fixedly installed on the left end of the top surface of the base plate 101. The tensioning mechanism 103 has a lifting mechanism inside, which is electrically connected to the control console 102. A tension block 104 is installed on the lifting mechanism, and an adjustment mechanism 3 is installed on the front side of the tension block 104. The top surface of the base plate 101 is located at the tensioning mechanism 104. The front side of the correction mechanism 4, the bottom surface of the adjustment mechanism 3 and the top surface of the correction mechanism 4 are all equipped with clamping mechanisms 2. The laser film is clamped between the two clamping mechanisms 2. The adjustment mechanism 3 adjusts the tilt state of the laser film in the front-back direction, and the correction mechanism 4 adjusts the tilt state of the laser film in the left-right direction. The front side of the traction mechanism 103 is equipped with a monitoring mechanism 6 located below the adjustment mechanism 3. The monitoring mechanism 6 monitors the tilt state of the laser film in the left-right direction. The four corners of the bottom surface of the base plate 101 are all equipped with leveling feet 105.

[0050] The traction mechanism 103 is equipped with a distance sensor, which can detect the position and height of the traction block 104.

[0051] The console 102 calculates the vertical height between the two clamping mechanisms 2 by using the height value of the position of the traction block 104 detected by the distance sensor, providing data support for subsequent calibration.

[0052] All electrical components and devices are electrically connected to the control panel 102.

[0053] Please see Figure 7 , Figure 8 and Figure 9The adjusting mechanism 3 includes an adjusting block 301, which is located in front of the pulling block 104. Two through holes 302 are symmetrically formed on the adjusting block 301. Two rollers 303 are symmetrically mounted on the inner wall of each through hole 302. A track 304, located below the rollers 303, is inserted into the through hole 302. The end face of the track 304 is U-shaped. The bottom of the rollers 303 is inserted into the track 304, and the rollers 303 travel on the bottom surface of the inner cavity of the track 304. The rear end of the track 304 is fixedly connected to the front side of the pulling block 104. A baffle 305 is provided on the front side of the track 304. Two U-shaped grooves are formed on the surface of the baffle 305 near the track 304. The free ends of the two tracks 304 are respectively inserted into the two U-shaped grooves and fixed with bolts. A track 304 located in the middle position is fixedly inserted into the bottom of the front side of the adjusting block 301. The threaded tube 306 extends from the rear end of the adjusting block 301. An adjusting screw 307 is installed inside the threaded tube 306 with thread engagement. The rear end of the adjusting screw 307 extends from the rear end of the threaded tube 306 and is fixedly connected to an adjusting motor 308. The adjusting motor 308 is bolted to the front side of the pulling block 104. A pressure sensor located in the middle is fixedly installed on the bottom surface of the adjusting block 301. The bottom end of the pressure sensor is fixed to the top of the corresponding clamping mechanism 2. The pressure sensor is electrically connected to the control console 102. A protective shell 309 is movably sleeved on the outside of the adjusting block 301. An adapter hole 310 is opened on the rear end face of the protective shell 309. The track 304 and the adjusting motor 308 are inserted into the adapter hole 310. The rear end face of the protective shell 309 is fixedly connected to the front side of the pulling block 104.

[0054] Please see Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 10 and Figure 11The correction mechanism 4 includes a correction strip 401 and a correction block 406. The bottom surface of the correction strip 401 is fixedly connected to the top surface of the base plate 101 and located in front of the traction mechanism 103. The front side of the correction strip 401 is parallel to the front side of the traction mechanism 103. A side strip 402 is fixedly connected to the top surface of the correction strip 401. The front and rear sides of the correction strip 401 are symmetrical about the middle surface of the correction strip 401. A correction groove 403 is formed in the middle of the top surface of the side strip 402. The bottom end of the correction groove 403 extends downward into the interior of the correction strip 401. A correction screw 404 is rotatably installed on the right side of the cavity of the correction groove 403. The other end of the correction screw 404 extends out from the left side of the correction strip 401 and is fixedly installed with a correction screw 406. A straightening motor 405 is bolted to the left end face of the straightening strip 401. A displacement block 411 is slidably inserted into the straightening groove 403. A displacement screw hole 412 is opened inside the displacement block 411. The straightening screw 404 is movably inserted into the displacement screw hole 412 and threaded. A T-shaped hole 407 is opened inside the straightening block 406. The bottom end of the T-shaped hole 407 is open and the opening is located on the bottom surface of the straightening block 406. The straightening strip 401 is inserted into the opening at the bottom end of the T-shaped hole 407. The side strip 402 is inserted into the T-shaped hole 407. The top end of the displacement block 411 is connected to the top surface of the inner cavity of the T-shaped hole 407. The corresponding clamping mechanism 2 is installed on the top surface of the straightening block 406.

[0055] Please see Figure 11 The top surface of the displacement block 411 is provided with an adapter groove 413, and an adapter block 414 is slidably inserted into the adapter groove 413. The top of the adapter block 414 is fixed to the top surface of the inner cavity of the T-shaped hole 407.

[0056] Please see Figure 5 and Figure 10 Three spherical grooves 408 are equally spaced on the front and rear edges of the top surface of the T-shaped hole 407. Ball bearings 409 are rotatably installed inside the spherical grooves 408. Arc grooves 410 are provided on the front and rear edges of the top surface of the side strip 402. The ball bearings 409 roll inside the arc grooves 410.

[0057] The rolling friction of the ball 409 inside the arc groove 410 replaces the sliding friction, which significantly reduces friction, reduces wear, and increases the accuracy of detection.

[0058] Please see Figure 5 , Figure 6 , Figure 9The clamping mechanism 2 includes a base block 201. The adjusting mechanism 3 is fixedly installed on the bottom end of the pressure sensor corresponding to the base block 201 on the clamping mechanism 2. The correcting mechanism 4 is fixedly connected to the top surface of the correcting block 406 corresponding to the base block 201 on the clamping mechanism 2. Opening holes 202 are provided on the two adjacent surfaces of the two base blocks 201, and the opening holes 202 extend in the left and right direction. Two mounting holes 203 are symmetrically provided on the front side of the base block 201, and the other end of the two mounting holes 203 penetrates through the base block. 201. Clamping cylinders 204 are fixedly inserted into both the front and rear ends of the inner cavity of the assembly hole 203. The clamping cylinders 204 are electrically connected to the control console 102. The ends of the protruding rods on the four clamping cylinders 204 extend into the interior of the opening hole 202 and are fixedly connected to clamping plates 205. The ends of the protruding rods inside the two clamping cylinders 204 on the same side of the opening hole 202 are fixedly connected to the same clamping plate 205. The clamping plate 205 is movably inserted into the interior of the opening hole 202. The two clamping plates 205 cooperate to clamp the end of the laser film.

[0059] Please see Figure 5 and Figure 6 The front side of the base block 201 has a threaded hole 207 located between two assembly holes 203. The threaded hole 207 passes through the base block 201. The opening hole 202 divides the threaded hole 207 into two parts. The two parts of the threaded hole 207 are threadedly fitted with clamping screws 206. The end of the clamping screw 206 on the front side of the base block 201 away from the base block 201 is fixedly connected to a rotating cap 208. The two clamping screws 206 are rotatably mounted with rotating columns 210 at their close ends. The two clamping plates 205 are each provided with a fixing hole 209. The rotating columns 210 are rotatably inserted into the fixing hole 209. The front and rear sides of the opening hole 202 are provided with receiving holes 211. The two rotating columns 210 are rotatably inserted into the two receiving holes 211 respectively. The two rotating columns 210 initially clamp and fix the laser film.

[0060] The clamping screw 206 connected to the rotating cap 208 is adjustable and is used to drive the corresponding rotating column 210 to move towards another rotating column 210 to achieve the clamping effect. The end face of the other clamping screw 206 has a cross groove, and people can use a Phillips screwdriver to adjust the position of the corresponding rotating column 210.

[0061] The rotating column 210 can move axially inside the receiving hole 211 and the fixing hole 209.

[0062] Please see Figure 2 , Figure 5 and Figure 6 An auxiliary plate 212 is fixedly connected to one end of the clamping plate 205 away from the base block 201. The auxiliary plate 212 is slidably connected to the end face of the free end of the base block 201.

[0063] The auxiliary plate 212 blocks the gap between the clamping plate 205 and the inner wall of the opening 202, preventing people from accidentally inserting the laser film into the gap, making it easier for people to use and reducing unnecessary work.

[0064] Two clamping plates 205 are fixedly connected to two adjacent surfaces with clamping strips 213 at their top ends. The clamping strips 213 are made of elastic material and the two clamping strips 213 clamp the laser film.

[0065] By setting the clamping strip 213 elastically, when the clamping strip 213 is not elastically deformed, the clamping strip 213 can guide the placed laser film and avoid wrinkles. When the two clamping strips 213 squeeze each other to clamp the laser film, the two clamping strips 213 elastically contract synchronously, providing stroke variables for the anti-detachment cone 214 to pierce the laser film.

[0066] Multiple anti-detachment cones 214 are fixedly connected at equal distances on the two close surfaces of the two clamping plates 205, and the anti-detachment cones 214 on the two surfaces are staggered.

[0067] The laser membrane is fixed in place by inserting an anti-detachment cone 214 into it, using the insertion point as an anchor point. This ensures a more secure fixation and prevents the laser membrane from falling off during subsequent tensile strength testing.

[0068] The design of the anti-detachment cones 214 on the two sides being staggered allows both anti-detachment cones 214 on both sides to play an anchoring role without interfering with each other, resulting in a better fixation effect on the laser film.

[0069] When the clamping plate 205 is not clamping the laser film and is in the starting position, the rotating column 210 protrudes more than the clamping bar 213 and the anti-detachment cone 214, ensuring that the anti-detachment cone 214 will not scratch the laser film during the process of placing the laser film between the two rotating columns 210, which can increase the accuracy of the test results.

[0070] When the clamping plate 205 is not clamping the laser film and is in the initial position, the clamping strip 213 protrudes more than the anti-detachment cone 214, and the rotating column 210 protrudes more than the clamping strip 213. When placing the laser film, the two rotating columns 210 provide initial positioning of the laser film, and the two clamping strips 213 provide secondary positioning of the laser film, ensuring that the laser film will not be scratched during placement, and further increasing the accuracy of the test results.

[0071] Please see Figure 9A first probe 312 and a second probe 313 located behind the opening 202 are fixedly connected to the bottom surface of the base block 201 at the bottom of the adjusting block 301. A fixed insertion hole 311 is provided on the corresponding auxiliary plate 212. The first probe 312 and the second probe 313 are both inserted into the fixed insertion hole 311. The free ends of the first probe 312 and the second probe 313 are inclined towards the rear side of the laser film. The angle between the axis of the first probe 312 and the bottom surface of the base block 201 is 30 degrees, and the angle between the axis of the second probe 313 and the bottom surface of the base block 201 is 60 degrees.

[0072] The fixed socket 311 prevents the auxiliary plate 212 from hitting the first probe 312 and the second probe 313 during movement.

[0073] By measuring the distance values ​​monitored by the first probe 312 and the second probe 313, and the angle between the axes of the first probe 312 and the second probe 313 and the bottom surface of the base block 201, the horizontal distance between the detection point on the laser film surface and the first probe 312 and the second probe 313 can be calculated. Combined with the distance between the first probe 312 and the second probe 313, the control console 102 can infer the tilt of the laser film in the front-back direction. The horizontal distance between the second probe 313 and the corresponding detection point is equal to the distance between the first probe 312 and the second probe 313 plus the horizontal distance between the first probe 312 and the corresponding detection point. When the sum of the horizontal distance values ​​is greater than the sum of the horizontal distance values ​​between the first probe 312 and the second probe 313 and between the first probe 312 and the corresponding detection point, the bottom of the laser film tilts forward in the front-back direction. When the sum of the horizontal distance values ​​between the second probe 313 and the corresponding detection point is less than the sum of the horizontal distance values ​​between the first probe 312 and the second probe 313 and between the first probe 312 and the corresponding detection point, the bottom of the laser film tilts backward in the front-back direction, providing data support for subsequent adaptive adjustment.

[0074] The distance between the first probe 312 and the second probe 313, and the angle between the axes of the first probe 312 and the second probe 313 and the bottom surface of the base block 201 are preset in the control console 102.

[0075] Please see Figure 5 , Figure 10 and Figure 12It also includes a compensation mechanism 5, which includes four sliding holes 501. All four sliding holes 501 are located on the bottom surface of the correcting block 406 and communicate with the T-shaped hole 407. The four sliding holes 501 are divided into two groups of two, with the openings of the two groups of sliding holes 501 symmetrical about the T-shaped hole 407. A sliding rod 502 is slidably inserted into each of the four sliding holes 501. A stop cap 503 is fixedly connected to the bottom end of each of the four sliding rods 502. A preload located inside the T-shaped hole 407 is fitted onto the outside of each of the four sliding rods 502. Spring 504, the bottom end of the preloaded spring 504 abuts against the bottom surface of the inner cavity of T-shaped hole 407. The top ends of two slide rods 502 on the same side of the opening of T-shaped hole 407 are fixedly connected to the same compensating strip 505. The top end of the preloaded spring 504 abuts against the bottom surface of the compensating strip 505. An inserting hole 506 is opened on the top surface of the compensating strip 505. A ball 507 is inserted inside the inserting hole 506. An arc track groove 508 is opened on the bottom surface of the side strip 402. The ball 507 rolls inside the arc track groove 508.

[0076] The preloaded spring 504 applies an upward thrust to the compensation bar 505, causing the compensation bar 505 to carry the ball 507 upward to apply pressure to the arc track groove 508. In conjunction with the ball 409, it restricts the correction block 406, preventing the correction block 406 from wobbling up and down relative to the side bar 402, which helps to increase the accuracy of the detection.

[0077] The bottom surface of the correcting block 406 has two fixing screw holes 509, which are symmetrical about the opening of the T-shaped hole 407. The fixing screw holes 509 are threadedly fitted with compensating screws 510. The top ends of the two compensating screws 510 are respectively abutted against the middle of the bottom surface of the two compensating bars 505. The bottom ends of the two compensating screws 510 are fixedly connected to winding wheels 511. The outside of the winding wheels 511 is wound with attraction lines 512. The free end of the attraction lines 512 is fixedly connected to a pre-tension spring 513. The other end of the pre-tension spring 513 is provided with a hook, which is hung on the slide bar 502 at one end of the compensating bar 505.

[0078] The pre-tension spring 513 pulls the attraction line 512 out of the winding wheel 511 and drives the winding wheel 511 to rotate. The winding wheel 511 rotates with the compensation screw 510. The compensation screw 510 moves upward under the action of the threaded engagement between itself and the fixed screw hole 509, supporting the compensation strip 505 upward. This ensures that the compensation strip 505 moves upward in one direction only, so that the correction block 406 will not move up and down relative to the side strip 402 during the entire test. This helps to increase the accuracy of the test and overcome the error caused by wear.

[0079] Please see Figure 1 and Figure 13The monitoring mechanism 6 includes a monitoring strip 601, which is fixedly connected to the left edge of the front side of the traction mechanism 103. A monitoring block 602 is provided on the right side of the monitoring strip 601. Two symmetrical insertion holes 603 are provided inside the monitoring block 602, and guide rods 604 are slidably inserted into each of the two insertion holes 603. The left ends of the two guide rods 604 are fixedly connected to the right side of the monitoring strip 601. A third probe 605 and a fourth probe 606 are fixedly installed at the upper and lower ends of the front side of the monitoring block 602, respectively. Both the third probe 605 and the fourth probe 606 are electrically connected to the control console 102. A drive screw hole 607 located in the middle of the monitoring block 602 is provided inside the drive screw hole 607. A drive screw 608 is installed in a threaded fit. The left end of the drive screw 608 is rotatably mounted on the right side of the monitoring strip 601. A reinforcing strip 609 is movably sleeved on the right end of the drive screw 608. The reinforcing strip 609 is fixedly connected to the right edge of the front side of the traction mechanism 103. The right ends of the two guide rods 604 are fixedly connected to the left side of the reinforcing strip 609. A drive motor 610 is fixedly installed on the right end of the drive screw 608. The drive motor 610 is bolted to the right side of the reinforcing strip 609. A fifth probe 611 is fixedly installed on the left side of the reinforcing strip 609. The other end of the fifth probe 611 points to the right side of the monitoring block 602. The drive motor 610, the fifth probe 611 and the control console 102 are electrically connected.

[0080] The movement direction of the monitoring block 602 is parallel to the extension direction of the correction strip 401.

[0081] The axes of the two guide rods 604 and the drive screw 608 are located in the same vertical plane and are horizontal, so that the monitoring block 602 can only move horizontally.

[0082] The direction of the laser film's tilt is determined by the order in which the third probe 605 and the fourth probe 606 detect the edge of the laser film. When the third probe 605 detects the edge of the laser film first, the top of the laser film tilts to the left. When the fourth probe 606 detects the edge of the laser film first, the top of the laser film tilts to the right.

[0083] By monitoring the displacement value generated by the fifth probe 611 and the monitoring block 602 during the time when the third probe 605 and the fourth probe 606 successively detect the edge of the laser film, and combining the distance value between the third probe 605 and the fourth probe 606, the control console 102 can calculate the tilt of the laser film in the left and right directions, providing data support for adaptive adjustment.

[0084] The distance between the third probe 605 and the fourth probe 606 is preset in the control console 102.

[0085] The distance values ​​from the front and rear sides of the correction strip 401 to the monitoring block 602 are both set inside the control console 102. When the distance values ​​detected by the third probe 605 and the fourth probe 606 fall between the two distance values ​​from the front and rear sides of the correction strip 401 to the monitoring block 602, it is considered that the edge of the laser film has been detected. The range between the two distance values ​​from the front and rear sides of the correction strip 401 to the monitoring block 602 is used as the preset range.

[0086] A test method for detecting the tensile strength of laser films includes the following steps:

[0087] S1: Use two clamping mechanisms 2 to clamp the two ends of the laser film respectively;

[0088] S2: Then, the tensile testing machine 1 is used to start the testing work. Then, the tensile testing machine 1, clamping mechanism 2, adjusting mechanism 3, correction mechanism 4, compensation mechanism 5 and monitoring mechanism 6 work together to automatically complete the test.

[0089] S3: The test is over. Remove the laser film from the two clamping mechanisms 2.

[0090] Working principle

[0091] First, the top of the laser film is inserted into the opening hole 202 on the clamping mechanism 2 below the adjusting mechanism 3. Then, the clamping screw 206 is tightened by rotating the cap 208. Next, the clamping screw 206, under the action of its threaded engagement with the threaded hole 207, moves the corresponding rotating column 210 closer to another rotating column 210. Then, the two rotating columns 210 fix and clamp the top of the laser film. Then, the bottom of the laser film is inserted into the opening hole 202 on the clamping mechanism 2 at the top of the straightening mechanism 4. Then, the corresponding clamping screw 206 is tightened by rotating the cap 208. Then, the two rotating columns 210 clamp the bottom of the laser film in the same way. Then, the control console 102 controls the pulling mechanism 103 to move the pulling block 104 upward. Next, the pulling block 104 pulls the top of the laser film through the adjusting mechanism 3 and the corresponding clamping mechanism 2. Then, the pressure sensor detects the pulling force on the laser film in real time. The control console 102 has a preset minimum pulling force value. When the pulling force detected by the pressure sensor is at the minimum value, the laser film straightens under the action of the pulling force. Since the rotating column 210 can rotate freely about the clamping screw 206 as the central axis, the laser film can adaptively change during the straightening process, reducing the error of manual installation of the laser film. Subsequently, the control console 102 controls the force on the pressure sensor by controlling the running direction of the pulling mechanism 103, so that the force on the pressure sensor fluctuates within a small range near the minimum value, ensuring that the laser film is always in a straight state. Then, the control... Console 102 infers the tilt of the laser film using data detected by the first probe 312 and the second probe 313. During detection, console 102 calculates the horizontal distance from the detection point on the laser film surface to the first probe 312 and the second probe 313 using the distance values ​​monitored by the first probe 312 and the second probe 313 and the angle between the axes of the first probe 312 and the second probe 313 and the bottom surface of the base block 201. Combining this with the distance value between the first probe 312 and the second probe 313, console 102 can deduce the tilt of the laser film in the front-back direction. The horizontal distance between the second probe 313 and the corresponding detection point is equal to the horizontal distance between the first probe 312 and the second probe 313. When the sum of the distance between probes 313 and the horizontal distance between the first probe 312 and the corresponding detection point is greater than the sum of the distance between the first probe 312 and the corresponding detection point, the laser film is vertical in the front-back direction. When the horizontal distance between the second probe 313 and the corresponding detection point is greater than the sum of the distance between the first probe 312 and the second probe 313 and the horizontal distance between the first probe 312 and the corresponding detection point, the bottom of the laser film tilts forward in the front-back direction. At this time, the control console 102 controls the adjustment motor 308 to run. The adjustment motor 308 rotates the adjustment screw 307. Under the action of the threaded engagement between the threaded tube 306 and the adjustment screw 307, the adjustment block 301 moves the top of the laser film forward through the pressure sensor and the corresponding clamping mechanism 2.Until the horizontal distance between the second probe 313 and the corresponding detection point is equal to the sum of the distance between the first probe 312 and the second probe 313 and the horizontal distance between the first probe 312 and the corresponding detection point, ensuring the laser film is vertical, and the horizontal distance between the second probe 313 and the corresponding detection point is less than the sum of the distance between the first probe 312 and the second probe 313 and the horizontal distance between the first probe 312 and the corresponding detection point, the bottom end of the laser film tilts backward in the front-to-back direction. At this time, the control console 102 controls the adjusting motor 30. 8. Reverse operation: The adjusting motor 308, through the adjusting screw 307, threaded pipe 306, adjusting block 301, pressure sensor, and corresponding clamping mechanism 2, moves the top of the laser film backward until the horizontal distance between the second probe 313 and the corresponding detection point equals the sum of the distance between the first probe 312 and the second probe 313 and the horizontal distance between the first probe 312 and the corresponding detection point. At this point, the control console 102 stops the adjusting motor 308, ensuring the laser film is vertical. This process adjusts the laser film to a vertical position in both the forward and backward directions.

[0092] Then, console 102 controls drive motor 610 to run, which in turn drives drive screw 608 to rotate. Drive screw 608, under the action of its threaded engagement, moves monitoring block 602 to the right. Monitoring block 602 then moves the third probe 605 and the fourth probe 606 to the right. Console 102 then uses the third probe 605, fourth probe 606, and fifth probe 611 to detect distance values ​​in real time. When the distance value detected by the third probe 605 falls within a preset range, console 102 determines that the top of the laser film is tilted to the left. Simultaneously, console 102 records the distance value detected by the fifth probe 611. Then, when the value detected by the fourth probe 606 falls within the preset range, console 102 records the distance value detected by the fifth probe 611. The second distance value detected by head 611 is then calculated by console 102. Next, console 102 calculates the difference between these two distance values. Based on this difference and the distance between the third probe head 605 and the fourth probe head 606, console 102 calculates the tilt of the laser film in the left-right direction. Then, based on the vertical distance between the two clamping mechanisms 2, console 102 calculates the distance the top clamping mechanism 2 of the correction mechanism 4 needs to move to the left. Console 102 then controls the correction motor 405 to operate. The correction motor 405, through the threaded engagement between the correction screw 404 and the displacement screw hole 412, and the insertion action between the displacement block 411, the adapter block 414, and the adapter groove 413, moves the clamping mechanism 2 on the correction mechanism 4 to the left. The moving distance is equal to the calculated distance. The distance that the clamping mechanism 2 on the correction mechanism 4 needs to move is equal to the distance that the bottom end of the laser film needs to move to the left. When the distance value detected by the fourth probe 606 falls within the preset range, the control console 102 determines that the top end of the laser film is tilted to the right. At this time, the control console 102 controls the correction motor 405 to run in reverse. The correction motor 405, through the threaded engagement between the correction screw 404 and the displacement screw hole 412, and the insertion action between the displacement block 411, the adapter block 414 and the adapter groove 413, moves the clamping mechanism 2 on the correction mechanism 4 to the right. The moving distance is equal to the distance that the clamping mechanism 2 on the correction mechanism 4 needs to move. The bottom end of the laser film moves to the right simultaneously. In this way, the adjustment of the laser film in the left and right directions is achieved. After the adjustment, the laser film is on the left... The laser film is initially vertical in the right direction. When the fifth probe 611 detects that the monitoring block 602 has moved to its extreme position to the right, the control console 102 controls the drive motor 610 to reverse direction. Then, the monitoring block 602, along with the third probe 605 and the fourth probe 606, moves to the left back to the starting position. During this process, the control console 102 adjusts the laser film based on the data detected by the third probe 605 and the fourth probe 606 during their return stroke, ensuring the film remains vertical in the left-right direction. This ensures the adjusted laser film is vertical in the left-right direction. After adjustment, the control console 102 controls the clamping cylinder 204 to extend, and then the clamping cylinder 204, along with the clamping plate 205, approaches the laser film.The clamping plates 205 on both sides of the laser film then hold the laser film in place. The control console 102 then controls the pulling block 104 to rise via the pulling mechanism 103 to begin the experiment. Pressure sensors continuously monitor the traction force data and send it to the control console 102 until the experiment is complete.

[0093] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A testing device for detecting the tensile strength of laser films, comprising a tensile testing machine (1), characterized in that, The tensile testing machine (1) includes a base plate (101), a control console (102) is fixedly installed on the right end of the top surface of the base plate (101), and a traction mechanism (103) is fixedly installed on the left end of the top surface of the base plate (101). The traction mechanism (103) is equipped with a lifting mechanism inside, and a traction block (104) is installed on the lifting mechanism. An adjustment mechanism (3) is installed on the front side of the traction block (104). A correction mechanism (4) is located on the top surface of the base plate (101) in front of the traction mechanism (103). The bottom surface of the adjustment mechanism (3) and the correction mechanism are connected. The top surface of the structure (4) is provided with clamping mechanism (2), and the laser film is clamped between the two clamping mechanisms (2). The adjustment mechanism (3) adjusts the tilt state of the laser film in the front and back direction, and the correction mechanism (4) adjusts the tilt state of the laser film in the left and right direction. The front side of the pulling mechanism (103) is provided with a monitoring mechanism (6) located below the adjustment mechanism (3). The monitoring mechanism (6) monitors the tilt state of the laser film in the left and right direction. The four corners of the bottom surface of the base plate (101) are all equipped with leveling feet (105).

2. The testing device for detecting the tensile strength of laser films according to claim 1, characterized in that, The adjustment mechanism (3) includes an adjustment block (301), which is located in front of the pulling block (104). Two through holes (302) are symmetrically opened on the adjustment block (301). Two rollers (303) are symmetrically installed on the inner wall of the through holes (302). A track (304) located below the rollers (303) is inserted into the through holes (302). The end face of the track (304) is U-shaped. The bottom of the rollers (303) is inserted into the track (304). Inside, the roller (303) travels on the bottom surface of the inner cavity of the track (304). The rear end of the track (304) is fixedly connected to the front side of the pulling block (104). A baffle (305) is provided on the front side of the track (304). Two U-shaped grooves are opened on the surface of the baffle (305) near the track (304). The free ends of the two tracks (304) are respectively inserted into the two U-shaped grooves and fixed with bolts. The bottom of the front side of the adjusting block (301) is fixedly inserted with a device located in the middle. A threaded tube (306) is positioned in the middle. The rear end of the threaded tube (306) extends from the rear end face of the adjusting block (301). An adjusting screw (307) is installed inside the threaded tube (306) with thread engagement. The rear end of the adjusting screw (307) extends from the rear end of the threaded tube (306) and is fixedly connected to an adjusting motor (308). The adjusting motor (308) is bolted to the front side of the pulling block (104). A pressure sensor located in the middle is fixedly installed on the bottom surface of the adjusting block (301). The bottom end of the pressure sensor is fixed to the top of the corresponding clamping mechanism (2). The pressure sensor is electrically connected to the control console (102). A protective shell (309) is fitted on the outside of the adjusting block (301). An adapter hole (310) is opened on the rear end face of the protective shell (309). The track (304) and the adjusting motor (308) are inserted into the adapter hole (310). The rear end face of the protective shell (309) is fixedly connected to the front side of the pulling block (104).

3. The testing device for detecting the tensile strength of laser films according to claim 1, characterized in that, The correction mechanism (4) includes a correction strip (401) and a correction block (406). The bottom surface of the correction strip (401) is fixedly connected to the top surface of the base plate (101) and located in front of the traction mechanism (103). The front side of the correction strip (401) is parallel to the front side of the traction mechanism (103). A side strip (402) is fixedly connected to the top surface of the correction strip (401). The front and rear sides of the correction strip (401) are symmetrical about the middle surface of the correction strip (401). A correction groove (403) is opened in the middle of the top surface of the side strip (402). The bottom end of the correction groove (403) extends downward into the interior of the correction strip (401). A correction screw (404) is rotatably installed on the right side of the cavity of the correction groove (403). The other end of the correction screw (404) extends out from the left side of the correction strip (401) and is fixedly installed with a correction screw. A straightening motor (405) is bolted to the left end face of the straightening strip (401). A displacement block (411) is slidably inserted into the straightening groove (403). A displacement screw hole (412) is opened inside the displacement block (411). A straightening screw (404) is movably inserted into the displacement screw hole (412) and threaded. A T-shaped hole (407) is opened inside the straightening block (406). The bottom end of the T-shaped hole (407) is open and the opening is located on the bottom surface of the straightening block (406). The straightening strip (401) is inserted into the opening at the bottom end of the T-shaped hole (407). The side strip (402) is inserted into the T-shaped hole (407). The top end of the displacement block (411) is connected to the top surface of the inner cavity of the T-shaped hole (407). The corresponding clamping mechanism (2) is installed on the top surface of the straightening block (406). The displacement block (411) has an adapter groove (413) on its top surface. An adapter block (414) is slidably inserted into the adapter groove (413). The top of the adapter block (414) is fixed to the top surface of the T-shaped hole (407). Three spherical grooves (408) are equally spaced on the front and rear edges of the top surface of the T-shaped hole (407). A ball bearing (409) is rotatably installed inside the spherical groove (408). A circular arc groove (410) is provided on the front and rear edges of the top surface of the side strip (402). The ball bearing (409) rolls inside the circular arc groove (410).

4. A testing device for detecting the tensile strength of laser films according to claim 2 or 3, characterized in that, The clamping mechanism (2) includes a base block (201). The adjusting mechanism (3) is fixedly installed on the bottom of the pressure sensor corresponding to the base block (201) on the clamping mechanism (2). The correcting mechanism (4) is fixedly connected to the top surface of the correcting block (406) corresponding to the base block (201) on the clamping mechanism (2). Opening holes (202) are provided on the two surfaces of the two base blocks (201) that are close to each other. The opening holes (202) extend in the left and right direction. Two mounting holes (203) are symmetrically provided on the front side of the base block (201). The other end of the two mounting holes (203) penetrates the base. The base block (201) has clamping cylinders (204) fixedly inserted at both ends of the inner cavity of the assembly hole (203). The clamping cylinders (204) are electrically connected to the control console (102). The ends of the extension rods on the four clamping cylinders (204) extend into the interior of the opening hole (202) and are fixedly connected to clamping plates (205). The ends of the extension rods inside the two clamping cylinders (204) on the same side of the opening hole (202) are fixedly connected to the same clamping plate (205). The clamping plate (205) is movably inserted into the interior of the opening hole (202). The two clamping plates (205) cooperate to clamp the end of the laser film. The front side of the base block (201) has a threaded hole (207) located between two assembly holes (203). The threaded hole (207) passes through the base block (201), and the opening hole (202) divides the threaded hole (207) into two parts. A clamping screw (206) is threadedly installed inside both parts of the threaded hole (207). A rotating cap (208) is fixedly connected to the end of the clamping screw (206) on the front side of the base block (201) away from the base block (201). Each clamping screw (206) has a rotating column (210) mounted on both ends that are close to each other. Each of the two clamping plates (205) has a fixing hole (209). The rotating column (210) is rotatably inserted into the fixing hole (209). The front and rear sides of the inner cavity of the opening hole (202) are provided with receiving holes (211). The two rotating columns (210) are rotatably inserted into the two receiving holes (211). The two rotating columns (210) initially clamp and fix the laser film.

5. The testing device for detecting the tensile strength of laser films according to claim 4, characterized in that, An auxiliary plate (212) is fixedly connected to one end of the clamping plate (205) away from the base block (201), and the auxiliary plate (212) is slidably connected to the end face of the free end of the base block (201); Each of the two clamping plates (205) has a clamping strip (213) fixedly connected to its top surface on both sides that are close to each other. The clamping strip (213) is made of elastic material and the two clamping strips (213) clamp the laser film. Multiple anti-detachment cones (214) are fixedly connected at equal distances on the two surfaces of the two clamping plates (205) that are close to each other, and the anti-detachment cones (214) on the two surfaces are staggered.

6. The testing device for detecting the tensile strength of laser films according to claim 2, characterized in that, The adjustment block (301) has a base block (201) at the bottom surface of which a first probe (312) and a second probe (313) are fixedly connected. The corresponding auxiliary plate (212) has a fixed insertion hole (311). The first probe (312) and the second probe (313) are both inserted into the fixed insertion hole (311). The free ends of the first probe (312) and the second probe (313) are both tilted towards the rear side of the laser film. The angle between the axis of the first probe (312) and the bottom surface of the base block (201) is 30 degrees, and the angle between the axis of the second probe (313) and the bottom surface of the base block (201) is 60 degrees.

7. The testing device for detecting the tensile strength of laser films according to claim 3, characterized in that, It also includes a compensation mechanism (5), which includes four sliding holes (501). The four sliding holes (501) are all opened on the bottom surface of the correcting block (406) and communicate with the T-shaped hole (407). The four sliding holes (501) are divided into two groups of two. The two groups of sliding holes (501) are symmetrical about the opening of the T-shaped hole (407). A sliding rod (502) is slidably inserted into each of the four sliding holes (501). A stop cap (503) is fixedly connected to the bottom end of each of the four sliding rods (502). A preload spring located inside the T-shaped hole (407) is sleeved on the outside of each of the four sliding rods (502). Spring (504), the bottom end of the preload spring (504) abuts against the bottom surface of the inner cavity of the T-shaped hole (407). The top ends of the two slide rods (502) on the same side of the opening of the T-shaped hole (407) are fixedly connected to the same compensating strip (505). The top end of the preload spring (504) abuts against the bottom surface of the compensating strip (505). An inserting hole (506) is provided on the top surface of the compensating strip (505). A ball (507) is inserted inside the inserting hole (506). An arc track groove (508) is provided on the bottom surface of the side strip (402). The ball (507) rolls inside the arc track groove (508).

8. The testing device for detecting the tensile strength of laser films according to claim 7, characterized in that, The bottom surface of the correction block (406) has two fixing screw holes (509). The two fixing screw holes (509) are symmetrical about the opening of the T-shaped hole (407). The fixing screw holes (509) are threadedly fitted with compensation screws (510). The top ends of the two compensation screws (510) are respectively abutted at the middle position of the bottom surface of the two compensation bars (505). The bottom ends of the two compensation screws (510) are fixedly connected to the winding wheel (511). The winding wheel (511) is wound with a force line (512). The free end of the force line (512) is fixedly connected to a pre-tension spring (513). The other end of the pre-tension spring (513) is provided with a hook, which is hung on the slide bar (502) at one end of the compensation bar (505).

9. The testing device for detecting the tensile strength of laser films according to claim 1, characterized in that, The monitoring mechanism (6) includes a monitoring strip (601), which is fixedly connected to the left edge of the front side of the traction mechanism (103). A monitoring block (602) is provided on the right side of the monitoring strip (601). Two through holes (603) are symmetrically opened inside the monitoring block (602). Guide rods (604) are slidably inserted into the two through holes (603). The left ends of the two guide rods (604) are fixedly connected to the right side of the monitoring strip (601). A third probe (605) and a fourth probe (606) are fixedly installed at the upper and lower ends of the front side of the monitoring block (602). The third probe (605) and the fourth probe (606) are electrically connected to the control console (102). A drive screw hole located in the middle of the monitoring block (602) is opened inside the monitoring block (602). (607), a drive screw (608) is installed in the drive screw hole (607) with internal thread engagement. The left end of the drive screw (608) is rotatably installed on the right side of the monitoring strip (601). A reinforcing strip (609) is movably sleeved on the right end of the drive screw (608). The reinforcing strip (609) is fixedly connected to the right edge of the front side of the traction mechanism (103). The right ends of the two guide rods (604) are fixedly connected to the left side of the reinforcing strip (609). A drive motor (610) is fixedly installed on the right end of the drive screw (608). The drive motor (610) is bolted to the right side of the reinforcing strip (609). A fifth probe (611) is fixedly installed on the left side of the reinforcing strip (609). The other end of the fifth probe (611) points to the right side of the monitoring block (602).

10. A test method for detecting the tensile strength of a laser film, comprising a test apparatus for detecting the tensile strength of a laser film as described in any one of claims 1-9, characterized in that, Includes the following steps: S1: Use two clamping mechanisms (2) to clamp the two ends of the laser film respectively; S2: Then, the tensile testing machine (1) is used to start the testing work. Then, the tensile testing machine (1), clamping mechanism (2), adjustment mechanism (3), correction mechanism (4), compensation mechanism (5) and monitoring mechanism (6) work together to automatically complete the test. S3: The test is over. Remove the laser film from the two clamping mechanisms (2).

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