A quality detection device for a measuring instrument and a method of using the same

Abstract

The present invention discloses a quality inspection device and a method of using a measuring instrument, and relates to the technical field of quality inspection of measuring instruments. A quality inspection device of a measuring instrument comprises a propulsion assembly, a rebound assembly, a stretching assembly and a folding assembly, wherein the rebound assembly comprises a mounting block, the first end of the mounting block is rotatably connected to a chain, the second end of the mounting block is slidably connected to a second support plate, the second support plate is fixedly connected to a bottom plate, an electromagnet is slidably connected to the mounting block, the first end of an electromagnet spring is fixedly connected to the electromagnet, and the second end of the electromagnet spring is fixedly connected to the mounting block, and the stretching assembly comprises two upper clamping slides, the two upper clamping slides are respectively slidably connected to a fixed frame and a sliding frame, an upper clamping rod is slidably connected to the upper clamping slide, the first end of a clamping rod spring is fixedly connected to the upper clamping rod, and the second end of the clamping rod spring is fixedly connected to the upper clamping slide.

Description

Technical Field

[0001] The invention discloses a quality detection device for a measuring instrument and a use method thereof, and relates to the technical field of quality detection of measuring instruments. Background Art

[0002] Measuring instruments are widely used in various industries. As the industry's requirements for measurement accuracy and reliability continue to increase, the inaccuracy of measuring instruments will have a great impact on product performance and quality. Therefore, the quality inspection of measuring instruments is very important. Accurate measuring instruments can significantly improve production levels. At the same time, the stability of measuring instruments can effectively save time costs.

[0003] The utility model patent with announcement number CN216954248U discloses a detection device for construction measuring tools with adjustment function. The device includes a support plate, on which a moving rod is arranged. The moving rod is driven to move by a motor, and one end of the measuring tape is fixed by a fixing groove. The quality of the measuring tape is detected by repeatedly pulling out the ruler.

[0004] When the above-mentioned device is used to detect the tape measure, its operating process is relatively cumbersome, and the detection items of the device are relatively single. At the same time, in the prior art, the detection of measuring instruments usually relies on limited calibration standards and complex operating processes, and there are problems such as high time cost and high professional skills requirements. Summary of the invention

[0005] To solve the above problems, the present invention provides the following technical solutions: a quality detection device of a measuring instrument, comprising a propulsion assembly, a rebound assembly, a stretching assembly and a folding assembly, the propulsion assembly comprising a fixed disk, the fixed disk is rotatably connected to a first support plate, a fixed rod is slidably connected to the fixed disk, four fixed rods are provided, a first end of a fixed spring is fixedly connected to the fixed rod, a second end of the fixed spring is fixedly connected to the fixed disk, an adjusting belt is frictionally connected to the fixed disk, the adjusting belt is also frictionally connected to a handle, the handle is rotatably connected to the first support plate, the rebound assembly comprises a mounting block, a first end of the mounting block is rotatably connected to a chain, a second end of the mounting block is slidably connected to the second support plate, and the first end of the mounting block is frictionally connected to the second support plate. The two supporting plates are fixedly connected to the base plate, and the mounting block is slidably connected with an electromagnet, and the first end of the electromagnet spring is fixedly connected to the electromagnet, and the second end of the electromagnet spring is fixedly connected to the mounting block. The stretching component includes two upper clamping slots, and the two upper clamping slots are respectively slidably connected to the fixed frame and the sliding frame. The upper clamping slot is slidably connected with an upper clamping rod, and the upper clamping rod is fixedly connected with the first end of the clamping rod spring, and the second end of the clamping rod spring is fixedly connected to the upper clamping slot. The folding component includes a flap, which is rotatably connected to the mounting plate, and a transmission gear is fixedly connected to the flap, and the transmission gear meshes with a swing gear. The swing gear is fixedly connected to the swing rod, and the swing rod is rotatably connected to the mounting plate.

[0006] Preferably, the propulsion assembly also includes a base plate, to which a propulsion motor is fixedly connected, to which a first gear is fixedly connected, the first gear meshes with a second gear, the second gear is rotatably connected to a fixed groove, the fixed groove is fixedly connected to the base plate, and the second gear is also threadedly connected to the propulsion screw.

[0007] Preferably, the pushing screw is rotatably connected with a pushing block and an ejection rod, the pushing block is slidably connected to the fixed groove and the placement rack, the placement rack is fixedly connected to the bottom plate, the placement rack is fixedly connected with a first end of a pushing spring, the second end of the pushing spring is rotatably connected to the pushing ring, the pushing ring is rotatably connected to the pushing screw, two pushing springs are provided, the first end of another pushing spring is fixedly connected to the ejection rod, and the ejection rod is slidably connected to the fixed groove and the fixed disk.

[0008] Preferably, the rebound assembly also includes a rebound motor and an adjustment plate, the rebound motor is fixedly connected to the base plate, the rebound motor is frictionally connected to a rebound transmission belt, the rebound transmission belt is also frictionally connected to a rotating shaft, four rotating shafts are provided, the rotating shaft is rotatably connected to a first support plate, the first support plate is fixedly connected to the base plate, a chain is frictionally connected to the rotating shaft, the adjustment plate is slidably connected to the first support plate, the first end of an adjustment plate spring is fixedly connected to the adjustment plate, and the second end of the adjustment plate spring is fixedly connected to the first support plate.

[0009] Preferably, the stretching assembly also includes a stretching motor, which is fixedly connected to the base plate, and the stretching motor is frictionally connected to a stretching transmission belt, which is also frictionally connected to a stretching screw rod, which is rotatably connected to a support frame, which is fixedly connected to the base plate, and the stretching screw rod is rotatably connected to a first end of a fixed frame, and the second end of the fixed frame is fixedly connected to a slide rail, and the stretching screw rod is threadedly connected to a first end of a sliding frame, and the second end of the sliding frame is slidably connected to the slide rail, which is fixedly connected to the base plate, and the sliding frame is slidably connected to the second support plate.

[0010] Preferably, the stretching assembly also includes two upper hydraulic cylinders and two lower hydraulic cylinders, the two upper hydraulic cylinders are respectively fixedly connected to the fixed frame and the sliding frame, the upper hydraulic cylinders are slidably connected with an upper hydraulic rod, and the upper hydraulic rod is fixedly connected to the upper clamping slide groove, the two lower hydraulic cylinders are respectively fixedly connected to the fixed frame and the sliding frame, the lower hydraulic cylinders are slidably connected with a lower hydraulic rod, and the lower hydraulic rod is fixedly connected with a lower clamping rod.

[0011] Preferably, the folding assembly also includes a slide plate and a mounting plate, the slide plate is slidably connected to the upper clamping slide groove, the slide plate is fixedly connected to a pressure rod, the pressure rod is slidably connected to the second support plate, the mounting plate is slidably connected to the lower hydraulic rod, the mounting plate is fixedly connected to a sliding rod, the sliding rod is slidably connected to the base plate, the mounting plate is fixedly connected to a first end of a support spring, and the second end of the support spring is fixedly connected to the base plate.

[0012] Preferably, the folding assembly also includes a rotating swing shaft, which is rotatably connected to the mounting plate, slidably connected to the swing rod, and frictionally connected to a belt on the rotating swing shaft, which is also frictionally connected to the flipping motor, and the flipping motor is fixedly connected to the mounting plate.

[0013] A method for using a quality detection device of a measuring instrument, the method for using is:

[0014] Step 1: Manually place the tape measure on the rack, then start the propulsion motor to make the propulsion block slide toward the fixed disk, push the tape measure between the four fixed rods, then reverse the propulsion motor to reset the propulsion block, and then manually turn the handle so that the hook of the tape measure is facing the chain.

[0015] Step 2: Start the rebound motor to make the chain move, and the chain movement drives the electromagnet to slide down close to the adjustment plate. After sliding to the hook position, the electromagnet absorbs the hook, and then the electromagnet pulls the hook to the end of the chain close to the flip motor. Then the electromagnet is powered off, causing the hook to retract, and this is repeated to detect the resilience of the tape measure.

[0016] Step 3: When the folding performance test is required, the ruler hook is stretched to a position close to the flip motor by the electromagnet again, and then the upper hydraulic cylinder and the lower hydraulic cylinder are started, so that the lower clamping rod and the upper clamping rod clamp the tape measure in the middle, and then the electromagnet is powered off and the flip motor is started, so that the flap is flipped upward to realize the folding performance test of the tape measure.

[0017] Step 4: After the folding test is completed, the stretching motor is started to make the sliding frame slide in the direction of the flap, thereby stretching the tape measure to achieve the stretching performance test of the tape measure.

[0018] The present invention provides a quality detection device and a method for using a measuring instrument, which have the following beneficial effects:

[0019] 1. The present invention is provided with an adjustment plate, through the sliding of the adjustment plate, the electromagnet slides and compresses the electromagnet spring after moving to contact the adjustment plate, and then the electromagnet slides downward along the adjustment plate with the movement of the chain, and the electromagnet slides downward along the adjustment plate to realize the adsorption of the ruler hook.

[0020] 2. The present invention is provided with an upper clamping rod. Through the sliding of the upper clamping rod, when the lower clamping rod contacts the upper clamping rod, the two upper clamping rods are pushed to slide to both sides and the clamping rod spring is compressed. The upper clamping rod slides so that the lower clamping rod and the measuring tape are clamped between the two upper clamping rods, so that the measuring tape will not slide during the tensile performance test.

[0021] 3. The present invention is provided with a flap, and the flipping motor drives the rotating swing shaft to rotate through a belt, the rotating swing shaft drives the swing rod to swing, the swinging of the swing rod drives the swinging gear to swing, the swinging of the swinging gear drives the transmission gear to rotate, and the rotation of the transmission gear drives the flap to flip, and the folding performance test is realized by the flipping of the flap. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a front view of the present invention.

[0024] Figure 3 It is a top view of the present invention.

[0025] Figure 4 It is a side view of the present invention.

[0026] Figure 5 It is a structural schematic diagram of the propulsion assembly of the present invention.

[0027] Figure 6 It is a schematic structural diagram of the fixed disk of the present invention.

[0028] Figure 7 It is a schematic structural diagram of the rebound component of the present invention.

[0029] Figure 8 It is a structural schematic diagram of the mounting block of the present invention.

[0030] Fig. 9 It is a schematic structural diagram of the stretching assembly of the present invention.

[0031] Fig.10 It is a schematic structural diagram of the stretching screw rod of the present invention.

[0032] Fig.11 It is a cross-sectional view of the sliding frame of the present invention.

[0033] Fig.12 It is a schematic structural diagram of the folding assembly of the present invention.

[0034] Fig.13 It is a structural schematic diagram of the swing rod of the present invention.

[0035] Fig.14 It is a structural schematic diagram of the flap of the present invention.

[0036] In the figure: 1-propelling assembly; 2-rebound assembly; 3-stretching assembly; 4-folding assembly; 101-bottom plate; 102-propelling motor; 103-first gear; 104-second gear; 105-fixing groove; 106-propelling screw rod; 107-propelling block; 108-placing rack; 109-propelling spring; 110-propelling ring; 111-pushing rod; 112-fixing plate; 113-fixing rod; 114-fixing spring; 115-adjusting belt; 116-handle; 201-rebound motor; 202-rebound transmission belt; 203-rotating shaft; 204-first support plate; 205-chain; 206-mounting block; 207-second support plate; 208-electromagnet; 209-electromagnet spring; 2 10-adjustment plate; 211-adjustment plate spring; 301-stretching motor; 302-stretching transmission belt; 303-stretching screw rod; 304-support frame; 305-fixed frame; 306-sliding frame; 307-slide rail; 308-upper hydraulic cylinder; 309-upper hydraulic rod; 310-upper clamping slide; 311-upper clamping rod; 312-clamping rod spring; 313-lower hydraulic cylinder; 314-lower hydraulic rod; 315-lower clamping rod; 401-slide plate; 402-pressure rod; 403-mounting plate; 404-slide rod; 405-support spring; 406-flip plate; 407-transmission gear; 408-swing gear; 409-swing rod; 410-rotating swing shaft; 411-belt; 412-flip motor. DETAILED DESCRIPTION

[0037] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0038] See also Figures 1 to 14As shown, the present invention provides a technical solution: a quality detection device of a measuring instrument, comprising a propulsion component 1, a rebound component 2, a stretching component 3 and a folding component 4, wherein the propulsion component 1 comprises a fixed disk 112, the fixed disk 112 is rotatably connected to a first support plate 204, a fixed rod 113 is slidably connected to the fixed disk 112, four fixed rods 113 are provided, a first end of a fixed spring 114 is fixedly connected to the fixed rod 113, a second end of the fixed spring 114 is fixedly connected to the fixed disk 112, an adjusting belt 115 is frictionally connected to the fixed disk 112, the adjusting belt 115 is also frictionally connected to a handle 116, the handle 116 is rotatably connected to the first support plate 204, the rebound component 2 comprises a mounting block 206, a first end of the mounting block 206 is rotatably connected to a chain 205, a second end of the mounting block 206 is slidably connected to a second support plate 207, and the second support plate 207 is fixedly connected to the bottom On the plate 101, an electromagnet 208 is slidably connected to the mounting block 206, a first end of an electromagnet spring 209 is fixedly connected to the electromagnet 208, a second end of the electromagnet spring 209 is fixedly connected to the mounting block 206, the stretching component 3 includes two upper clamping slots 310, the two upper clamping slots 310 are respectively slidably connected to the fixed frame 305 and the sliding frame 306, an upper clamping rod 311 is slidably connected to the upper clamping slot 310, a first end of a clamping rod spring 312 is fixedly connected to the upper clamping slot 312, a second end of the clamping rod spring 312 is fixedly connected to the upper clamping slot 310, the folding component 4 includes a flap 406, the flap 406 is rotatably connected to the mounting plate 403, a transmission gear 407 is fixedly connected to the flap 406, the transmission gear 407 meshes with the swing gear 408, the swing gear 408 is fixedly connected to the swing rod 409, and the swing rod 409 is rotatably connected to the mounting plate 403.

[0039] The propulsion assembly 1 also includes a base plate 101, to which a propulsion motor 102 is fixedly connected, to which a first gear 103 is fixedly connected, the first gear 103 meshes with a second gear 104, the second gear 104 is rotatably connected to a fixed groove 105, the fixed groove 105 is fixedly connected to the base plate 101, and the second gear 104 is also threadedly connected to a propulsion screw 106.

[0040] The pushing screw 106 is rotatably connected with a pushing block 107 and an ejection rod 111, the pushing block 107 is slidably connected to the fixed groove 105 and the placement rack 108, the placement rack 108 is fixedly connected to the bottom plate 101, the placement rack 108 is fixedly connected with a first end of a pushing spring 109, the second end of the pushing spring 109 is rotatably connected to the pushing ring 110, the pushing ring 110 is rotatably connected to the pushing screw 106, two pushing springs 109 are provided, the first end of the other pushing spring 109 is fixedly connected to the ejection rod 111, and the ejection rod 111 is slidably connected to the fixed groove 105 and the fixed disk 112.

[0041] like Figure 5 and Figure 6 As shown, limit rings are provided at both ends of the pushing screw 106, and the pushing block 107 and the ejection rod 111 are rotatably connected to the pushing screw 106 while also being slidably connected to the pushing screw 106. The end of the fixed rod 113 close to the placement rack 108 is an inclined rod. When working, the measuring tape is placed upright on the placement rack 108, and then the pushing motor 102 is started. The pushing motor 102 drives the second gear 104 to rotate through the first gear 103. The rotation of the second gear 104 drives the pushing screw 106 to rotate and move in the direction of the ejection rod 111. When the pushing screw 106 slides in the direction of the ejection rod 111, the pushing screw 106 pushes the pushing block 107 to slide in the direction of the fixed rod 113 through the limit ring close to one end of the placement rack 108. The pushing block 107 slides in the direction of the fixed rod 113 to push the measuring tape placed on the placement rack 108 to move in the direction of the fixed disk 112. 107 slides in the direction of the fixed rod 113 and compresses the propulsion spring 109 on one side of the propulsion block 107. At the same time, when the propulsion screw 106 moves in the direction of the ejection rod 111, the propulsion spring 109 on one side of the ejection rod 111 pulls the ejection rod 111, so that the ejection rod 111 remains stationary. When the propulsion block 107 pushes the tape measure to move toward the fixed disk 112, the front end of the tape measure contacts the inclined rod of the fixed rod 113, thereby pushing the fixed rod 113 to slide and compressing the fixed spring 114. The sliding of the fixed rod 113 causes the tape measure to move between the four fixed rods 113. The four fixed rods 113 clamp the tape measure through the fixed spring 114. After the tape measure contacts the fixed disk 112, the propulsion motor 102 reverses to reset the propulsion screw 106. During the resetting process of the propulsion screw 106, the propulsion spring 109 on one side of the placement rack 108 pushes the propulsion block 107 to reset.

[0042] Before testing is required, the handle 116 is manually turned, and the handle 116 drives the fixed plate 112 to rotate by adjusting the belt 115. The rotation of the fixed plate 112 drives the measuring tape above it to rotate. The direction of the measuring tape hook is adjusted by rotating the fixed plate 112, so as to facilitate the next step of testing.

[0043] When the test is completed and the measuring tape needs to be taken out, the propulsion motor 102 is reversed, and the reversal of the propulsion motor 102 causes the propulsion screw 106 to move toward the placement rack 108. When the propulsion screw 106 moves toward the placement rack 108, the limiting ring close to the end of the handle 116 pushes the ejection rod 111 to slide toward the placement rack 108 and compresses the propulsion spring 109 on one side of the ejection rod 111. The ejection rod 111 slides toward the placement rack 108, pushing the measuring tape to detach from the fixing rod 113, and then the propulsion motor 102 is rotated forward, so that the propulsion screw 106 is reset, and the ejection rod 111 is reset by the propulsion spring 109.

[0044] The rebound component 2 also includes a rebound motor 201 and an adjustment plate 210. The rebound motor 201 is fixedly connected to the base plate 101. The rebound motor 201 is frictionally connected to a rebound transmission belt 202. The rebound transmission belt 202 is also frictionally connected to a rotating shaft 203. Four rotating shafts 203 are provided. The rotating shaft 203 is rotatably connected to a first support plate 204. The first support plate 204 is fixedly connected to the base plate 101. A chain 205 is frictionally connected to the rotating shaft 203. The adjustment plate 210 is slidably connected to the first support plate 204. The first end of an adjusting plate spring 211 is fixedly connected to the adjusting plate 210. The second end of the adjusting plate spring 211 is fixedly connected to the first support plate 204.

[0045] like Figure 5 , Figure 7 and Figure 8 As shown, the rebound transmission belt 202 frictionally connects the rebound motor 201 and the rotating shaft 203 closest to the rebound motor 201, two mounting blocks 206 are provided, which are symmetrically arranged on the chain 205, and each mounting block 206 is provided with an electromagnet 208. The adjustment plate 210 is close to one end of the fixed rod 113 close to the rebound motor 201 through the adjustment plate spring 211. When working, the rebound motor 201 drives the rotating shaft 203 to rotate through the rebound transmission belt 202, and the rotation of the rotating shaft 203 drives the chain 205 to move. When the chain 205 moves, it drives the two mounting blocks 206 to move. When the mounting blocks 206 move, they slide on the second support plate 207 at the same time, so that the electromagnet 208 starts Finally, it moves toward the adjustment plate 210. When the chain 205 drives the electromagnet 208 to move, the electromagnet 208 gradually contacts the adjustment plate 210. Then, with the movement of the chain 205, the electromagnet 208 slides downward along the adjustment plate 210 and adsorbs the ruler hook. When the fixed rod 113 clamps the tape measure, the fixed rod 113 expands outward to push the adjustment plate 210 to slide and compress the adjustment plate spring 211. At this time, when the electromagnet 208 contacts the adjustment plate 210, the adjustment plate 210 pushes the electromagnet 208 to slide and compresses the electromagnet spring 209. Therefore, when the size of the tape measure is different, the electromagnet 208 can always be adsorbed to the ruler hook through the sliding of the adjustment plate 210.

[0046] After the electromagnet 208 is adsorbed to the ruler hook, the movement of the chain 205 pulls the ruler hook toward the flap 406. After the mounting block 206 pushes the electromagnet 208 that adsorbs the ruler hook to one end close to the flap 406, the electromagnet 208 is powered off, causing the ruler hook to detach, thereby automatically retracting the belt. At the same time, another electromagnet 208 moves to the adsorption position and drives the ruler hook to move again. This is repeated to detect the resilience of the tape measure.

[0047] The stretching assembly 3 also includes a stretching motor 301, which is fixedly connected to the base plate 101. The stretching motor 301 is frictionally connected to a stretching transmission belt 302, and the stretching transmission belt 302 is also frictionally connected to a stretching screw rod 303. The stretching screw rod 303 is rotatably connected to a support frame 304, and the support frame 304 is fixedly connected to the base plate 101. The stretching screw rod 303 is rotatably connected to a first end of a fixed frame 305, and a second end of the fixed frame 305 is fixedly connected to a slide rail 307. The stretching screw rod 303 is threadedly connected to a first end of a sliding frame 306, and a second end of the sliding frame 306 is slidably connected to the slide rail 307. The slide rail 307 is fixedly connected to the base plate 101, and the sliding frame 306 is slidably connected to the second support plate 207.

[0048] The stretching assembly 3 also includes two upper hydraulic cylinders 308 and two lower hydraulic cylinders 313. The two upper hydraulic cylinders 308 are respectively fixedly connected to the fixed frame 305 and the sliding frame 306. The upper hydraulic cylinders 308 are slidably connected with an upper hydraulic rod 309, and the upper hydraulic rod 309 is fixedly connected to the upper clamping slide groove 310. The two lower hydraulic cylinders 313 are respectively fixedly connected to the fixed frame 305 and the sliding frame 306. The lower hydraulic cylinders 313 are slidably connected with a lower hydraulic rod 314, and the lower hydraulic rod 314 is fixedly connected with a lower clamping rod 315.

[0049] like Fig. 9 , Fig.10 and Fig.11As shown, each upper clamping slot 310 is provided with two upper clamping rods 311. When working, when the tape measure is pulled out by adsorbing the ruler hook through the electromagnet 208, the tape measure passes through the middle of the upper clamping rod 311 and the lower clamping rod 315. When the tensile performance test is required, the two upper hydraulic cylinders 308 and the two lower hydraulic cylinders 313 are started at the same time. The upper hydraulic cylinder 308 pushes the upper clamping slot 310 to move downward through the upper hydraulic rod 309. The downward movement of the upper clamping slot 310 drives the upper clamping rod 311 to move downward. At the same time, the lower hydraulic cylinder 313 pushes the lower hydraulic rod 314 to drive the lower clamping rod 315 to move upward. The upper clamping rod 311 and the lower clamping rod 315 clamp the measuring tape toward the middle, and the measuring tape is pre-clamped when the lower clamping rod 315 and the upper clamping rod 311 are close to each other. At this time, the upper clamping rod 311 and the lower clamping rod 315 continue to move, so that the lower clamping rod 315 pushes the upper clamping rod 311 to slide and compresses the clamping rod spring 312. After the upper clamping rod 311 slides, the lower clamping rod 315 and the measuring tape are tested to the middle of the two upper clamping rods 311, and the upper clamping rod 311 is pressed against the belt through the clamping rod spring 312, so that the belt is bent, and a thorough clamping is achieved to prevent the measuring tape from sliding during the tensile performance test and affecting the data accuracy.

[0050] After clamping is completed, the stretching motor 301 is started, and the stretching motor 301 drives the stretching screw 303 to rotate through the stretching transmission belt 302. The rotation of the stretching screw 303 causes the sliding frame 306 to slide along the slide groove and the slide rail 307 on the second support plate 207. The sliding frame 306 slides to stretch the measuring tape. After the setting is completed, the stretching motor 301 is reversed to reset the sliding frame 306. At the same time, the upper hydraulic cylinder 308 and the lower hydraulic cylinder 313 are used to reduce the pressure so that the upper clamping rod 311 and the lower clamping rod 315 are reset to release the clamping of the measuring tape.

[0051] The folding assembly 4 also includes a slide plate 401 and a mounting plate 403. The slide plate 401 is slidably connected to the upper clamping groove 310. The slide plate 401 is fixedly connected to a pressure rod 402, which is slidably connected to the second support plate 207. The mounting plate 403 is slidably connected to the lower hydraulic rod 314. The mounting plate 403 is fixedly connected to a sliding rod 404, which is slidably connected to the bottom plate 101. The mounting plate 403 is fixedly connected to a first end of a support spring 405, and the second end of the support spring 405 is fixedly connected to the bottom plate 101.

[0052] The folding assembly 4 also includes a rotating swing shaft 410, which is rotatably connected to the mounting plate 403, and is slidably connected to the swing rod 409. A belt 411 is frictionally connected to the rotating swing shaft 410, and the belt 411 is also frictionally connected to a flipping motor 412, and the flipping motor 412 is fixedly connected to the mounting plate 403.

[0053] like Fig.12 , Fig.13 and Fig.14 As shown, the support spring 405 is in a compressed state. When working, when the sliding frame 306 slides, because the slide plate 401 and the mounting plate 403 are slidably connected to the upper clamping slide groove 310 and the lower hydraulic rod 314, the slide plate 401 and the mounting plate 403 remain stationary. When clamping, the upper clamping slide groove 310 and the lower hydraulic rod 314 drive the slide plate 401 and the mounting plate 403 to move. When the upper clamping slide groove 310 moves downward, the slide plate 401 drives the pressure rod 402 to move downward, so that the pressure rod 402 presses the upper part of the tape measure, and at the same time, the lower hydraulic rod 314 moves upward, so that the support spring 405 pushes the mounting plate 403 to move upward, and the mounting plate 403 moves upward to make the flap 406 close to the lower part of the tape measure. After the clamping is completed and the flap 406 is close to the bottom of the tape measure, the flip motor 412 is started, and the flip motor 412 drives the rotating swing shaft 410 to rotate through the belt 411. When the slide plate 401 rotates, the end connected to the swing rod 409 slides on the swing rod 409, causing the swing rod 409 to swing, and the swing of the swing rod 409 drives the swing gear 408 to swing, and the swing of the swing gear 408 drives the transmission gear 407 to rotate, and the rotation of the transmission gear 407 drives the flap 406 to flip, and when the flap 406 flips upward, because the pressure rod 402 presses the tape measure, the flap 406 flips to achieve the folding of the tape measure, and the continuous operation of the flip motor 412 makes the flap 406 repeatedly flipped, thereby realizing the folding performance detection of the tape measure.

[0054] After the detection is completed, the flip motor 412 is turned off, and then the pressure rod 402 and the mounting plate 403 are reset by clamping and resetting. When the mounting plate 403 is reset, the mounting plate 403 pushes the slide bar 404 to slide and re-compresses the support spring 405.

[0055] A method for using a quality detection device of a measuring instrument, the method for using is:

[0056] Step 1: Manually place the measuring tape on the placement rack 108, then start the propulsion motor 102 to make the propulsion block 107 slide toward the fixed plate 112, push the measuring tape to be clamped between the four fixed rods 113, then reverse the propulsion motor 102 to reset the propulsion block 107, and then manually turn the handle 116 so that the hook of the measuring tape faces the chain 205.

[0057] Step 2: Start the rebound motor 201 to move the chain 205, and the chain 205 drives the electromagnet 208 to slide downward close to the adjustment plate 210. After sliding to the ruler hook position, the electromagnet 208 absorbs the ruler hook, and then the electromagnet 208 pulls the ruler hook to the end of the chain 205 close to the flip motor 412 through the chain 205. Then the electromagnet 208 is powered off, so that the ruler hook retracts, and the rebound elasticity of the tape measure is tested repeatedly.

[0058] Step 3: When the folding performance test is required, the ruler hook is stretched to a position close to the flip motor 412 by the electromagnet 208 again, and then the upper hydraulic cylinder 308 and the lower hydraulic cylinder 313 are started, so that the lower clamping rod 315 and the upper clamping rod 311 clamp the measuring tape toward the middle, and then the electromagnet 208 is powered off and the flip motor 412 is started, so that the flap 406 flips upward, thereby realizing the folding performance test of the measuring tape.

[0059] Step 4: After the folding property test is completed, the stretching motor 301 is started to make the sliding frame 306 slide in the direction of the flap 406, thereby stretching the measuring tape to achieve the stretching property test of the measuring tape.

[0060] Working principle: When in use, first place the tape measure to be tested upright on the placement rack 108, and then start the propulsion motor 102. The propulsion motor 102 drives the propulsion screw 106 to move. The movement of the propulsion screw 106 drives the propulsion block 107 to slide and compress the propulsion spring 109 on one side of the propulsion block 107. The propulsion block 107 slides and pushes the tape measure to the middle of the four fixed rods 113. The fixed rods 113 clamp the tape measure through the fixed springs 114. After the tape measure is close to the fixed disk 112, reverse the propulsion motor 102 to reset the propulsion screw 106. After the propulsion screw 106 is reset, the propulsion spring 109 pushes the propulsion block 107 to reset. After the propulsion block 107 is reset, manually turn the handle 116 to rotate the fixed disk 112. The fixed disk 112 rotates to adjust the ruler hook toward the side of the electromagnet 208.

[0061] After the direction of the ruler hook is adjusted, the rebound motor 201 is started. The movement of the rebound motor 201 causes the chain 205 to move, and the movement of the chain 205 drives the mounting block 206 to move. The movement of the mounting block 206 drives the electromagnet 208 to move. After the electromagnet 208 moves to the adsorption position, it adsorbs the ruler hook, and then pulls the ruler hook to the other end of the chain 205 through the movement of the chain 205. After the ruler hook reaches the other end, the electromagnet 208 is powered off, so that the ruler hook is separated from the adsorption, and the tape measure is retracted. After the tape measure is retracted, the chain 205 drives another electromagnet 208 to move to the adsorption position, adsorbs again, and then repeats, thereby realizing the detection of the resilience of the tape measure.

[0062] When the stretching performance and folding performance need to be tested, the rebound motor 201 is started, so that the electromagnet 208 pulls the ruler hook to pull out the tape measure, and when the tape measure reaches one end of the chain 205 close to the slide plate 401, the upper hydraulic cylinder 308 and the lower hydraulic cylinder 313 are started, and the upper hydraulic cylinder 308 and the lower hydraulic cylinder 313 drive the upper clamping rod 311 and the lower clamping rod 315 to clamp the tape measure toward the middle. While clamping, the upper clamping slide 310 and the lower hydraulic rod 314 drive the slide plate 401 and the mounting plate 403 to move. After the clamping is completed, the stretching motor 301 is started, and the stretching motor 301 drives the stretching screw rod 303 to rotate through the stretching transmission belt 302. The rotation of the stretching screw rod 303 drives the sliding frame 306 to slide, and the stretching performance of the tape measure is tested through the sliding side of the sliding frame 306. At the same time, after the clamping is completed, the flipping motor 412 is started, and the flipping motor 412 drives the rotating swing shaft 410 to rotate through the belt 411. The swing shaft 410 rotates to drive the swing rod 409 to swing, and the swing gear 408 is driven to swing through the swing rod 409. The swing gear 408 drives the flap 406 to flip through the transmission gear 407, thereby realizing the detection of the folding performance of the tape measure.

[0063] After the test is completed, the device is reset and the propulsion motor 102 is reversed, so that the propulsion screw 106 moves toward the placement rack 108. The movement of the propulsion screw 106 toward the placement rack 108 drives the push rod 111 to slide toward the placement rack 108. The push rod 111 slides toward the placement rack 108 to push the tape measure out.

Claims

1. A quality inspection device for a measuring instrument, comprising a propulsion component (1), a rebound component (2), a stretching component (3) and a folding component (4), characterized in that: The propulsion assembly (1) comprises a fixed disk (112), the fixed disk (112) being rotatably connected to a first support plate (204), a fixed rod (113) being slidably connected to the fixed disk (112), four fixed rods (113) being provided, a first end of a fixed spring (114) being fixedly connected to the fixed rod (113), a second end of the fixed spring (114) being fixedly connected to the fixed disk (112), an adjustment belt (115) being frictionally connected to the fixed disk (112), and the adjustment belt (115) is also frictionally connected to the handle (116), the handle (116) is rotatably connected to the first support plate (204), the rebound assembly (2) includes a mounting block (206), a first end of the mounting block (206) is rotatably connected to the chain (205), a second end of the mounting block (206) is slidably connected to the second support plate (207), the second support plate (207) is fixedly connected to the bottom plate (101), and an electromagnet (208) is slidably connected to the mounting block (206), the electromagnet The first end of the electromagnet spring (209) is fixedly connected to the iron (208), and the second end of the electromagnet spring (209) is fixedly connected to the mounting block (206). The stretching assembly (3) includes two upper clamping grooves (310), and the two upper clamping grooves (310) are respectively slidably connected to the fixed frame (305) and the sliding frame (306). The upper clamping grooves (310) are slidably connected to the upper clamping rod (311), and the upper clamping rod spring (312) is fixedly connected to the upper clamping rod (311). ), the second end of the clamping rod spring (312) is fixedly connected to the upper clamping slide groove (310), the folding assembly (4) comprises a flap (406), the flap (406) is rotatably connected to the mounting plate (403), a transmission gear (407) is fixedly connected to the flap (406), the transmission gear (407) is engaged with a swing gear (408), the swing gear (408) is fixedly connected to a swing rod (409), and the swing rod (409) is rotatably connected to the mounting plate (403).

2. The quality detection device of a measuring instrument according to claim 1, characterized in that: The propulsion assembly (1) further comprises a base plate (101), a propulsion motor (102) being fixedly connected to the base plate (101), a first gear (103) being fixedly connected to the propulsion motor (102), the first gear (103) being meshed with a second gear (104), the second gear (104) being rotatably connected to a fixing groove (105), the fixing groove (105) being fixedly connected to the base plate (101), and the second gear (104) being also threadedly connected to a propulsion screw rod (106).

3. The quality detection device of a measuring instrument according to claim 2, characterized in that: The pushing screw (106) is rotatably connected to a pushing block (107) and an ejection rod (111); the pushing block (107) is slidably connected to a fixed groove (105) and a placement rack (108); the placement rack (108) is fixedly connected to the bottom plate (101); a first end of a pushing spring (109) is fixedly connected to the placement rack (108); a second end of the pushing spring (109) is rotatably connected to a pushing ring (110); the pushing ring (110) is rotatably connected to the pushing screw (106); two pushing springs (109) are provided; a first end of another pushing spring (109) is fixedly connected to the ejection rod (111); and the ejection rod (111) is slidably connected to the fixed groove (105) and the fixed disk (112).

4. The quality detection device of a measuring instrument according to claim 1, characterized in that: The rebound component (2) further comprises a rebound motor (201) and an adjustment plate (210); the rebound motor (201) is fixedly connected to the bottom plate (101); a rebound drive belt (202) is frictionally connected to the rebound motor (201); the rebound drive belt (202) is also frictionally connected to a rotating shaft (203); four rotating shafts (203) are provided; the rotating shaft (203) is rotationally connected to a first support plate (204); the first support plate (204) is fixedly connected to the bottom plate (101); a chain (205) is frictionally connected to the rotating shaft (203); the adjustment plate (210) is slidably connected to the first support plate (204); a first end of an adjustment plate spring (211) is fixedly connected to the adjustment plate (210); and a second end of the adjustment plate spring (211) is fixedly connected to the first support plate (204).

5. The quality detection device of a measuring instrument according to claim 1, characterized in that: The stretching assembly (3) further comprises a stretching motor (301), the stretching motor (301) being fixedly connected to the base plate (101), a stretching transmission belt (302) being frictionally connected to the stretching motor (301), the stretching transmission belt (302) being frictionally connected to the stretching screw rod (303), the stretching screw rod (303) being rotationally connected to a support frame (304), the support frame (304) being fixedly connected to the base plate (101), a first end of a fixed frame (305) being rotationally connected to the stretching screw rod (303), a second end of the fixed frame (305) being fixedly connected to a slide rail (307), a first end of a sliding frame (306) being threadedly connected to the stretching screw rod (303), a second end of the sliding frame (306) being slidably connected to the slide rail (307), the slide rail (307) being fixedly connected to the base plate (101), and the sliding frame (306) being slidably connected to a second support plate (207).

6. The quality detection device of a measuring instrument according to claim 1, characterized in that: The stretching assembly (3) further comprises two upper hydraulic cylinders (308) and two lower hydraulic cylinders (313); the two upper hydraulic cylinders (308) are respectively fixedly connected to the fixed frame (305) and the sliding frame (306); an upper hydraulic rod (309) is slidably connected to the upper hydraulic cylinder (308); the upper hydraulic rod (309) is fixedly connected to the upper clamping slide groove (310); the two lower hydraulic cylinders (313) are respectively fixedly connected to the fixed frame (305) and the sliding frame (306); a lower hydraulic rod (314) is slidably connected to the lower hydraulic cylinder (313); and a lower clamping rod (315) is fixedly connected to the lower hydraulic rod (314).

7. The quality detection device of a measuring instrument according to claim 1, characterized in that: The folding assembly (4) further comprises a slide plate (401) and a mounting plate (403); the slide plate (401) is slidably connected to the upper clamping slide groove (310); a pressure rod (402) is fixedly connected to the slide plate (401); the pressure rod (402) is slidably connected to the second support plate (207); the mounting plate (403) is slidably connected to the lower hydraulic rod (314); a sliding rod (404) is fixedly connected to the mounting plate (403); the sliding rod (404) is slidably connected to the bottom plate (101); a first end of a support spring (405) is fixedly connected to the mounting plate (403); and a second end of the support spring (405) is fixedly connected to the bottom plate (101).

8. The quality detection device of a measuring instrument according to claim 1, characterized in that: The folding assembly (4) further comprises a rotating swing shaft (410), the rotating swing shaft (410) being rotatably connected to the mounting plate (403), the rotating swing shaft (410) being slidably connected to the swing rod (409), a belt (411) being frictionally connected to the rotating swing shaft (410), the belt (411) being frictionally connected to a flipping motor (412), and the flipping motor (412) being fixedly connected to the mounting plate (403).

9. A method for using a quality detection device of a measuring instrument as claimed in any one of claims 1 to 8, characterized in that: How to use: Step 1: manually placing the measuring tape on the placement frame (108), then starting the propulsion motor (102) so that the propulsion block (107) slides toward the fixed plate (112), pushing the measuring tape to be clamped between the four fixed rods (113), then reversing the propulsion motor (102) so that the propulsion block (107) is reset, and then manually turning the handle (116) so that the hook of the measuring tape faces the chain (205); Step 2: Start the rebound motor (201) to move the chain (205), and the movement of the chain (205) drives the electromagnet (208) to slide downward close to the adjustment plate (210). After sliding to the ruler hook position, the electromagnet (208) absorbs the ruler hook, and then the electromagnet (208) pulls the ruler hook to move to one end of the chain (205) close to the flip motor (412) through the chain (205); then the electromagnet (208) is powered off, so that the ruler hook retracts, and the process is repeated to detect the rebound elasticity of the tape measure; Step 3: When the folding performance test is required, the ruler hook is again stretched to a position close to the flip motor (412) by the electromagnet (208), and then the upper hydraulic cylinder (308) and the lower hydraulic cylinder (313) are started, so that the lower clamping rod (315) and the upper clamping rod (311) clamp the measuring tape in the middle, and then the electromagnet (208) is powered off and the flip motor (412) is started, so that the flap (406) flips upward, so as to realize the folding performance test of the measuring tape; Step 4: After the folding property test is completed, the stretching motor (301) is started to make the sliding frame (306) slide in the direction of the flap (406), thereby stretching the measuring tape, thereby realizing the stretching property test of the measuring tape.

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