A machined part dimensional accuracy inspection device

Abstract

This invention relates to the field of parts inspection technology and discloses a dimensional accuracy inspection device for machined parts, including a support platform assembly. A turntable is rotatably connected inside the support platform assembly. An arc-shaped groove is arrayed on the edge of the turntable for accommodating a leaf spring to be inspected. A feeding assembly is located at the front of the support platform assembly, a pushing assembly is arrayed inside the turntable, a driving assembly is located above the pushing assembly, a detection assembly is located on the right side of the support platform assembly, and a discharging assembly is located on the left side of the driving assembly. The leaf spring is pushed into the inspection hopper by an arc-shaped pusher, so that the leaf spring is in contact with the surface of the measuring tape. A camera one captures the scale on the measuring tape at the end of the leaf spring to detect its length. Simultaneously, a camera two captures an image from above to measure the arc height of the leaf spring, thereby achieving high efficiency in leaf spring inspection.

Description

Technical Field

[0001] This invention relates to the field of parts inspection technology, specifically to a device for inspecting the dimensional accuracy of machined parts. Background Technology

[0002] Leaf springs are the most widely used elastic element in automotive suspensions. They are approximately equal-strength elastic beams composed of several alloy spring leaves of equal width but unequal length (thickness may be equal or unequal). After manufacturing, leaf springs need to be inspected for dimensions such as length and arc height.

[0003] Chinese patent application date: August 4, 2022, publication number: CN115355814B, discloses a plate spring flatness testing device, including a worktable; a movable support mechanism disposed on the worktable; a reciprocating flatness testing mechanism disposed on the worktable, the reciprocating flatness testing mechanism having a first testing module and a second testing module; a stabilizing support mechanism, two stabilizing support mechanisms slidably disposed on the worktable and respectively located on both sides of its opening, the stabilizing support mechanism having a first hydraulic cylinder; and a spacing adjustment mechanism. This application achieves the purpose of testing the flatness of the upper and lower surfaces of a few plate springs, testing the thickness of various parts, and testing the degree of influence of deformation on flatness.

[0004] However, the testing process for multi-leaf springs requires the inspection of multiple curved steel plates. Manually measuring the scale teeth by hand is labor-intensive and inefficient. Alternatively, manually placing the curved steel plate to be inspected on the testing device, adjusting its position, conducting the inspection, and removing the plate are time-consuming and inefficient. Therefore, further improvements are needed. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a workpiece dimensional accuracy inspection device with advantages such as high inspection efficiency, thus solving the problem of low efficiency in manual inspection.

[0007] (II) Technical Solution

[0008] To achieve the aforementioned goal of high detection efficiency, the present invention provides the following technical solution: a workpiece dimensional accuracy detection device, comprising a support platform assembly, a turntable rotatably connected within the support platform assembly, an arc-shaped groove arrayed on the edge of the turntable for accommodating a leaf spring to be detected; a feeding assembly is provided on the front side of the support platform assembly for feeding the leaf spring; a pushing assembly is arrayed within the turntable, a driving assembly is provided above the pushing assembly for driving two sets of pushing assemblies distributed on the left and right to move away from each other and push the two sets of leaf springs distributed on the left and right out of the arc-shaped groove; a detection assembly is provided on the right side of the support platform assembly for detecting the length of the leaf spring; and a discharging assembly is provided on the left side of the driving assembly for driving the leaf spring on the left to separate from the pushing assembly.

[0009] Preferably, the support platform assembly includes a tray, on which multiple arc-shaped baffles are fixedly installed around the circumference of the tray, and three notches are formed between the multiple arc-shaped baffles. The three notches are respectively used for loading the leaf spring, unloading the leaf spring, and transferring the leaf spring to the detection assembly for detection; support plates are fixedly arranged on the top of the tray and arc-shaped baffle assembly, and mounting covers are fixedly installed between the other ends of the multiple support plates.

[0010] Preferably, the turntable is rotatably connected to the inside of the tray and arc-shaped baffle assembly. A connecting shaft is fixedly installed at the bottom of the turntable and rotatably connected to the center of the tray. A gear is fixedly installed on the surface of the connecting shaft, and a gear meshes with a second gear. A motor is fixedly installed at the center of the bottom of the second gear. The surface of the turntable is arrayed with a sliding groove, which corresponds one-to-one with an arc-shaped groove and is connected to the arc-shaped groove. An arc-shaped groove is formed in the middle of one side wall of the turntable located in the arc-shaped groove.

[0011] Preferably, the feeding assembly includes a feeding hopper fixedly installed on the front side of the pallet and arc-shaped baffle assembly. A cylinder is fixedly installed on the front side of the feeding hopper. The output end of the cylinder is slidably connected to the feeding hopper. A push plate is fixedly installed on the output end of the cylinder. Two sets of L-shaped plates are fixedly installed on the front side of the bottom of the push plate. A support plate is fixedly installed between the front ends of the two sets of L-shaped plates. Two sets of guide grooves are opened through the bottom of the feeding hopper. The vertical parts of the two sets of L-shaped plates are slidably connected through the guide grooves. The support plate is attached to the bottom of the feeding hopper.

[0012] Preferably, the bottom of the feeding hopper is rotatably connected to two sets of rotating arms. The center of the two sets of rotating arms is rotatably connected to the feeding hopper via a connecting shaft. A second sliding groove is provided through one end of the outer side of each rotating arm. A sliding column is slidably connected through the second sliding groove. A sliding seat is fixedly installed at the top of the sliding column. Two sets of guide rods are fixedly installed on both sides of the feeding hopper. The first guide rod passes through the sliding seat, and the sliding seat is slidably connected to the first guide rod. Two sets of second guide rods are slidably connected through the middle of the sliding seat. A clamping plate is fixedly installed at one end of the two sets of second guide rods on the inner side of the feeding hopper. A first spring is fixedly installed between the clamping plate and the sliding seat. The first spring is used to drive the clamping plate away from the sliding seat. A clearance groove is provided through both sides of the feeding hopper. The clearance groove is used for the clamping plate to pass through.

[0013] Preferably, the pushing assembly includes a slider slidably connected within a slide groove, a connecting rod fixedly mounted on the surface of the slider, an arc-shaped push plate fixedly mounted on the other end of the connecting rod, an arc-shaped groove for accommodating the arc-shaped push plate, a spring fixedly mounted between the slider and the inner wall of the slide groove, the spring for driving the slider to move towards the center of the turntable; a magnetic block is embedded at the center of the arc-shaped push plate for attracting the steel leaf spring; a decorative cover plate is fixedly mounted on the top of the slider and the arc-shaped push plate, the decorative cover plate covers the top opening of the slide groove, and a boss is fixedly mounted on the top of the decorative cover plate.

[0014] Preferably, the driving assembly includes a driving disk rotatably connected inside the mounting cover, a threaded rod fixedly installed at the top center of the driving disk, the threaded rod rotatably connected through the center of the mounting cover, a fixed disk fixedly installed at the bottom of the mounting cover, and the fixed disk fitting against the top of the decorative cover plate; the surface of the fixed disk has two sets of sliding grooves distributed on the left and right, a slide bar slidably connected in the sliding grooves, and the top of the threaded rod is fixedly installed; the bottom of the driving disk is provided with a spiral thread, the top of the slide bar is correspondingly provided with a threaded groove, the driving disk and the slide bar mesh with each other, and the slide bar is used to push the boss outward.

[0015] Preferably, the detection assembly includes a detection hopper fixedly installed on the right side of the tray and arc-shaped baffle assembly. The detection hopper has winding wheels rotatably connected to its front and rear sides. A measuring cloth is fixedly installed between the two sets of winding wheels. Slots are provided through both sides of the detection hopper, through which the measuring cloth passes. A coil spring is fixedly installed between the winding wheels and the detection hopper, driving the winding wheels to wind up the measuring cloth. The surface of the measuring cloth has length markings. Two sets of cameras (one set) are fixedly installed on the right side of the detection hopper, distributed front to back. An arch frame is fixedly installed on the top of the detection hopper, with a second camera fixedly installed in the middle of the arch frame. An elastic pusher is provided inside the detection hopper, used to push the tested leaf spring back into the arc-shaped slot.

[0016] Preferably, the elastic pusher includes a cylinder two fixedly installed at the center of the right side of the detection bucket. The output end of the cylinder two is slidably connected to the detection bucket. A mounting base is fixedly installed at the output end of the cylinder two. Two sets of guide rods three are slidably connected to the surface of the mounting base. A push plate is fixedly installed between the left ends of the two sets of guide rods three. A spring three is fixedly installed between the push plate and the mounting base. The spring three is used to drive the push plate away from the mounting base.

[0017] Preferably, the feeding assembly includes a bracket threadedly connected to a threaded rod. The right end of the bracket has a threaded hole corresponding to the threaded rod. A guide rod four is provided through the middle of the bracket and is fixedly installed on the top of the mounting cover. A U-shaped plate is fixedly installed on the lower left side of the bracket. Pressure plates are fixedly installed on both ends of the U-shaped plate. An arc-shaped part is provided on the right end of the pressure plate, and the center of the arc of the arc-shaped part of the pressure plate is located on its upper side. A protective shell is fixedly installed on the top of the mounting cover. An opening is reserved on the left side of the protective shell to avoid the movement stroke of the bracket. The protective shell is sleeved on the outside of the threaded rod and the guide rod four. The threaded rod is rotatably connected to the protective shell and is fixedly installed on the top of the protective shell.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, the present invention provides a workpiece dimensional accuracy inspection device, which has the following beneficial effects:

[0020] 1. This dimensional accuracy testing equipment for processed parts pushes the leaf spring into the testing hopper through an arc-shaped pusher plate, so that the leaf spring is attached to the surface of the measuring cloth. The length of the leaf spring is detected by the camera one capturing the scale on the measuring cloth at the end of the leaf spring. At the same time, the arc height of the leaf spring is measured by the camera two capturing the image from above, thereby achieving the purpose of high efficiency in the testing of leaf springs.

[0021] 2. This dimensional accuracy inspection equipment for processed parts allows for manual or robotic placement of leaf springs inside the loading hopper. A cylinder and pusher plate work together to push the leaf springs into an arc-shaped groove. A rotating turntable then pushes the leaf springs to the inspection hopper, where an arc-shaped pusher plate pushes them inside for inspection. After inspection, the leaf springs are pushed to the left by the arc-shaped pusher plate. Simultaneously, a threaded rod drives a bracket downwards, and a pressure plate pushes the leaf springs downwards, separating them from the arc-shaped pusher plate. This automatically completes the loading and unloading of leaf springs, improving inspection efficiency.

[0022] 3. This dimensional accuracy testing equipment for processed parts works by placing the leaf spring to be tested inside the hopper. The output shaft of cylinder one retracts, pulling the assembly of the push plate, L-shaped plate, and support plate forward along the guide groove. The support plate presses against the rotating arm, causing it to deflect. This pushes the assembly of the sliding column and slide block along guide rod one into the hopper. Two sets of clamping plates hold the two ends of the leaf spring. As the slide block continues to move into the hopper, the spring is compressed and contracted. Through the elasticity of the spring, the two sets of clamping plates push the leaf spring, aligning its center with the center of the hopper. This achieves automatic correction of the leaf spring's position, avoiding manual adjustment and improving testing efficiency. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of a workpiece dimensional accuracy testing device proposed in this invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the assembly of the tray and arc-shaped baffle of the processing part dimensional accuracy detection equipment proposed in this invention, along with the turntable.

[0025] Figure 3 This is a three-dimensional structural diagram of the turntable of a workpiece dimensional accuracy detection device proposed in this invention;

[0026] Figure 4 This is a three-dimensional structural diagram of the loading component of a workpiece dimensional accuracy detection device proposed in this invention;

[0027] Figure 5 This is a bottom view of the loading assembly of a workpiece dimensional accuracy detection device proposed in this invention;

[0028] Figure 6 This is a schematic diagram of the three-dimensional assembly structure of the pusher assembly and turntable of a workpiece dimensional accuracy detection device proposed in this invention;

[0029] Figure 7 This is a three-dimensional structural diagram of the pusher assembly of a workpiece dimensional accuracy detection device proposed in this invention;

[0030] Figure 8 This is a three-dimensional structural diagram of the drive assembly of a workpiece dimensional accuracy detection device proposed in this invention;

[0031] Figure 9 This is a three-dimensional structural diagram of the detection component of a workpiece dimensional accuracy detection device proposed in this invention;

[0032] Figure 10 This is a top view schematic diagram of the detection component of a workpiece dimensional accuracy detection device proposed in this invention;

[0033] Figure 11 This is a three-dimensional structural diagram of the unloading component of a workpiece dimensional accuracy detection device proposed in this invention.

[0034] In the diagram: 100, Support platform assembly; 200, Turntable; 300, Feeding assembly; 400, Pushing assembly; 500, Drive assembly; 600, Detection assembly; 700, Unloading assembly; 101, Pallet; 102, Arc-shaped baffle; 103, Support plate; 104, Mounting cover; 201, Arc-shaped groove one; 202, Connecting shaft; 203, Gear one; 204, Gear two; 205, Motor one; 206, Slide groove one; 207, Arc-shaped groove two; 301, Feeding hopper; 302, Cylinder one; 303, Push plate; 304, L-shaped plate; 305, Support plate; 306, Guide groove; 307, Rotating arm; 308, Slide groove two; 309, Sliding column; 310, Sliding seat; 311, Guide rod one; 312, Guide rod two; 313, Clamping plate; 314 1. Spring 1; 3.15. Clearance groove; 4.01. Slider; 4.02. Connecting rod; 4.03. Arc-shaped push plate; 4.04. Spring 2; 4.05. Magnetic block; 4.06. Decorative cover plate; 4.07. Boss; 5.01. Drive plate; 5.02. Threaded rod; 5.03. Fixed plate; 5.04. Slide groove 3; 5.05. Slide bar; 6.01. Detection bucket; 6.02. Rewinding wheel; 6.03. Measuring tape; 6.04. Coil spring; 6.05. Slot; 6.06. Length scale; 6.07. Camera 1; 6.08. Cylinder 2; 6.09. Mounting base; 6.10. Guide rod 3; 6.11. Push plate; 6.12. Spring 3; 6.13. Arch frame; 6.14. Camera 2; 7.01. Bracket; 7.02. Guide rod 4; 7.03. U-shaped plate; 7.04. Pressure plate; 7.05. Protective shell. Detailed Implementation

[0035] The technical solutions of the embodiments 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figure 1A dimensional accuracy testing device for processed parts includes a support platform assembly 100, a turntable 200 rotatably connected within the support platform assembly 100, and an array of arc-shaped grooves 201 on the edge of the turntable 200 for accommodating leaf springs to be tested. A feeding assembly 300 is located at the front of the support platform assembly 100 for feeding leaf springs. Pushing assemblies 400 are arrayed within the turntable 200, and a driving assembly 500 is located above the pushing assemblies 400. The driving assembly 500 drives two sets of pushing assemblies 400 distributed to the left and right to move away from each other and push the two sets of leaf springs out of the arc-shaped grooves 201. A detection assembly 600 is located on the right side of the support platform assembly 100 for detecting the length of the leaf springs. A discharging assembly 700 is located on the left side of the driving assembly 500 for discharging the leaf springs on the left side from the pushing assemblies 400.

[0037] Please see Figures 2-3 and Figure 8 The support platform assembly 100 includes a tray 101, on which multiple arc-shaped baffles 102 are fixedly mounted around the circumference of the tray 101. Three notches are formed between the arc-shaped baffles 102, which are used for loading, unloading, and transferring the leaf springs to the detection assembly 600 for inspection. A loading assembly 300 is connected to the notch on the front side of the arc-shaped baffles 102, through which the leaf springs are loaded into the arc-shaped groove 201. The detection assembly 600 is connected to the notch on the right side of the baffles 102, through which the leaf springs in the arc-shaped groove 201 can enter the detection assembly 600 for inspection. Support plates 103 are fixedly arranged on the top of the tray 101 and arc-shaped baffle 102 assembly. A mounting cover 104 is fixedly mounted between the other ends of the multiple support plates 103, supporting the mounting cover 104.

[0038] Please see Figures 2-3 The turntable 200 is rotatably connected to the inside of the assembly of the tray 101 and the arc-shaped baffle 102. A connecting shaft 202 is fixedly installed at the bottom of the turntable 200. The connecting shaft 202 is rotatably connected to the center of the tray 101. A gear 203 is fixedly installed on the surface of the connecting shaft 202. The gear 203 meshes with a gear 204. A motor 205 is fixedly installed at the center of the bottom of the gear 204. The motor 205 drives the gear 204 to rotate, which in turn drives the assembly of the gear 203 and the connecting shaft 202 to rotate, thereby driving the turntable 200 to rotate.

[0039] The turntable 200 has an array of sliding grooves 206 on its surface, each corresponding to an arc-shaped groove 201, and the sliding grooves 206 and arc-shaped grooves 201 are connected. An arc-shaped groove 207 is located in the middle of the side wall of the arc-shaped groove 201 on the turntable 200. A pushing assembly 400 is housed within the sliding grooves 206 and the arc-shaped groove 207, and the pushing assembly 400 can magnetically attract the leaf springs. The leaf springs to be tested are placed in the feeding assembly 300 manually or by a robot, and then transferred to the arc-shaped groove 201 by the feeding assembly 300. The pushing assembly 400 then attracts and fixes the leaf springs, allowing them to move as the turntable 200 rotates.

[0040] Please see Figure 4 The feeding assembly 300 includes a feeding hopper 301 fixedly installed on the front side of the pallet 101 and the arc-shaped baffle 102 assembly. The feeding hopper 301 communicates with the notch on the front side of the arc-shaped baffle 102. A cylinder 302 is fixedly installed on the front side of the feeding hopper 301. The output end of the cylinder 302 is slidably connected to the feeding hopper 301. A push plate 303 is fixedly installed on the output end of the cylinder 302. After the leaf spring is placed inside the feeding hopper 301 manually or by a robot, the push plate 303 pushes the leaf spring toward the arc-shaped groove 201 by extending the output shaft of the cylinder 302.

[0041] Two sets of L-shaped plates 304 are fixedly installed on the front bottom of the push plate 303. A support plate 305 is fixedly installed between the front ends of the two sets of L-shaped plates 304. Two sets of guide grooves 306 are opened through the bottom of the feeding hopper 301. The vertical parts of the two sets of L-shaped plates 304 are slidably connected to the guide grooves 306 respectively. The support plate 305 is attached to the bottom of the feeding hopper 301. The push plate 303 is guided to move by the assembly of the L-shaped plates 304 and the support plate 305 cooperating with the guide grooves 306.

[0042] Please see Figures 4-5 Two sets of rotating arms 307 are rotatably connected to the bottom of the feeding hopper 301. The center of the two sets of rotating arms 307 is rotatably connected to the feeding hopper 301 through a connecting shaft. The support plate 305 is located between the two sets of rotating arms 307. A second sliding groove 308 is opened through one end of the outer side of the rotating arm 307. A sliding column 309 is slidably connected through the second sliding groove 308. A sliding seat 310 is fixedly installed at the top of the sliding column 309. Two sets of guide rods 311 are fixedly installed on both sides of the feeding hopper 301. The guide rods 311 pass through the sliding seat 310, and the sliding seat 310 is slidably connected to the guide rods 311. The guide rods 311 guide the movement path of the sliding seat 310.

[0043] Two sets of guide rods 312 are slidably connected through the middle of the slide block 310. A clamping plate 313 is fixedly installed at one end of each guide rod 312 on the inner side of the feeding hopper 301. A spring 314 is fixedly installed between the clamping plate 313 and the slide block 310. The spring 314 drives the clamping plate 313 away from the slide block 310. Both sides of the feeding hopper 301 have through-holes 315 for the clamping plate 313 to pass through. A push plate 303 is located between the two sets of clamping plates 313. After the leaf spring is placed inside the hopper 301, the output end of cylinder 302 retracts, causing the support plate 305 to move forward. The two ends of the support plate 305 press against the rotating arms 307, causing them to deflect. This pushes the assembly of the sliding column 309 and the sliding seat 310 upwards into the hopper 301. Consequently, the two sets of clamping plates 313 clamp the leaf spring on both sides. As the two sets of sliding seats 310 move closer together, the spring 314 is compressed and retracted. Under the elastic action of the springs 314 on both sides, the leaf spring moves left and right, aligning its center with the center of the hopper 301, thus correcting the position of the leaf spring.

[0044] Please see Figures 6-7 The pusher assembly 400 includes a slider 401 slidably connected within a slide groove 206. A connecting rod 402 is fixedly mounted on the surface of the slider 401, and an arc-shaped push plate 403 is fixedly mounted on the other end of the connecting rod 402. An arc-shaped groove 207 is used to accommodate the arc-shaped push plate 403. A spring 404 is fixedly mounted between the slider 401 and the inner wall of the slide groove 206. The spring 404 is used to drive the slider 401 to move towards the center of the turntable 200. A magnetic block 405 is embedded at the center of the arc-shaped push plate 403. The magnetic block 405 is used to attract the steel plate spring. A decorative cover plate 406 is fixedly mounted on the top of the slider 401 and the arc-shaped push plate 403. The decorative cover plate 406 covers the top opening of the slide groove 206. A boss 407 is fixedly mounted on the top of the decorative cover plate 406.

[0045] Please see Figure 8The drive assembly 500 includes a drive disk 501 rotatably connected within the mounting cover 104. A threaded rod 502 is fixedly installed at the top center of the drive disk 501, and the threaded rod 502 is rotatably connected through the center of the mounting cover 104. A fixed disk 503 is fixedly installed at the bottom of the mounting cover 104, and the fixed disk 503 is attached to the top of the decorative cover plate 406. Two sets of sliding grooves 504 distributed to the left and right are opened through the surface of the fixed disk 503. A slide bar 505 is slidably connected within the sliding grooves 504. The top of the threaded rod 502 is fixedly installed with 506. The bottom of the drive disk 501 is provided with a spiral thread, and the top of the slide bar 505 is provided with a corresponding threaded groove. The drive disk 501 and the slide bar 505 mesh with each other, and the slide bar 505 is used to push the boss 407 outward. By driving the threaded rod 502 and the drive disk 501 to rotate through 506, the slide bar 505 can be driven to slide along the sliding grooves 504. When the slide bar 505 slides outward along the slide groove 3 504, the slide bar 505 can push the boss 407 outward, thereby driving the assembly of the decorative cover plate 406, the slider 401, the connecting rod 402 and the arc-shaped push plate 403 to move outward. The magnetic block 405 attracts the steel leaf spring, so that the steel leaf spring is tightly attached to the surface of the arc-shaped push plate 403. At this time, the arc-shaped push plate 403 can push the steel leaf spring out of the arc-shaped groove 1 201.

[0046] Please see Figures 9-10 The detection assembly 600 includes a detection bucket 601 fixedly installed on the right side of the assembly of the tray 101 and the arc-shaped baffle 102. The detection bucket 601 is rotatably connected to the front and rear sides of the detection bucket 601. A measuring cloth belt 603 is fixedly installed between the two sets of winding wheels 602. The detection bucket 601 has slots 605 through it on both sides. The measuring cloth belt 603 passes through the middle of the slots 605. A coil spring 604 is fixedly installed between the winding wheel 602 and the detection bucket 601. The coil spring 604 is used to drive the winding wheel 602 to wind up the measuring cloth belt 603, so that the measuring cloth belt 603 is taut. The measuring tape 603 has length markings 606 on its surface. Two sets of cameras 607, arranged front and rear, are fixedly installed on the right side of the detection bucket 601. When the leaf spring is pushed into the detection bucket 601 by 413, the leaf spring adheres to the surface of the measuring tape 603. As the leaf spring moves, it pulls the measuring tape 603 partially released from the winding wheel 602 until both ends of the leaf spring are adhered to the measuring tape 603, causing the measuring tape 603 to bend at the ends of the leaf spring. At this time, the two cameras 607 capture images of the surface of the measuring tape 603 at the ends of the leaf spring, thus revealing the markings on the length markings 606 at both ends of the leaf spring, and consequently, the length of the outer arc surface of the leaf spring. Figure 9 In this context, the length of 'a' is the length of the outer arc surface of the leaf spring.

[0047] Please see Figures 9-10An elastic pusher is installed inside the detection bucket 601 to push the tested leaf spring back into the arc-shaped groove 201. The elastic pusher includes a cylinder 608 fixedly installed at the center of the right side of the detection bucket 601. The output end of the cylinder 608 is slidably connected to the detection bucket 601. A mounting base 609 is fixedly installed at the output end of the cylinder 608. Two sets of guide rods 610 are slidably connected through the surface of the mounting base 609. A push plate 611 is fixedly installed between the left ends of the two sets of guide rods 610. A spring 612 is fixedly installed between the push plate 611 and the mounting base 609. The spring 612 is used to drive the push plate 611 away from the mounting base 609. An arch frame 613 is fixedly installed on the top of the testing bucket 601, and a second camera 614 is fixedly installed in the middle of the arch frame 613. During the process of the arc-shaped steel plate pushing the measuring tape 603 to the right, the slot 605 will press the push plate 611 to the right, causing the push plate 611 to move to the right. A length scale for measuring the arc height of the leaf spring is set on the top of the testing bucket 601. By taking a picture from above using the second camera 614, the scale on the left end of the leaf spring and the left side of the push plate 611 at this length scale can be observed. Figure 10 The value 'b' represents the difference between the two sets of scales mentioned above. By subtracting the thickness of the measuring tape 603 from 'b', the arc height of the leaf spring can be obtained.

[0048] By connecting camera 607 and camera 614 to a computer, the values ​​of a and b can be automatically calculated. a reflects the length of the leaf spring; b, minus the thickness of the measuring tape 603, reflects the arc height of the leaf spring.

[0049] Please see Figure 11 The feeding assembly 700 includes a bracket 701 threadedly connected to a threaded rod 502. The right end of the bracket 701 has a threaded hole corresponding to the threaded rod 502. A guide rod 702 is provided through the middle of the bracket 701 and is fixedly installed on the top of the mounting cover 104. A U-shaped plate 703 is fixedly installed on the lower left side of the bracket 701. Pressure plates 704 are fixedly installed on both ends of the U-shaped plate 703. An arc-shaped part is provided on the right end of the pressure plate 704, and the center of the arc of the arc-shaped part of the pressure plate 704 is located on its upper side. A protective shell 705 is fixedly installed on the top of the mounting cover 104. An opening is reserved on the left side of the protective shell 705 to avoid the movement stroke of the bracket 701. The protective shell 705 is sleeved on the outside of the threaded rod 502 and the guide rod 702. The threaded rod 502 is rotatably connected to the protective shell 705 and is fixedly installed on the top of the protective shell 705.

[0050] In use, by placing the leaf spring to be tested inside the hopper 301, the output shaft of cylinder 302 retracts, pulling the assembly of push plate 303, L-shaped plate 304 and support plate 305 forward along guide groove 306. The support plate 305 squeezes the rotating arm 307, causing the rotating arm 307 to deflect, thereby pushing the assembly of slide column 309 and slide block 310 to move upward to hopper 301 along guide rod 311. Two sets of clamping plates 313 clamp the two ends of the leaf spring, and as the slide block 310 continues to move upward to hopper 301, spring 314 is squeezed and contracted. Through the elasticity of spring 314, the two sets of clamping plates 313 push the leaf spring, aligning the middle of the leaf spring with the middle of hopper 301.

[0051] Then, by extending the output end of cylinder 302, push plate 303 moves backward, pushing the steel leaf spring into the arc groove 201. The steel leaf spring is attached to the surface of arc push plate 403, and magnetic block 405 attracts the steel leaf spring.

[0052] Then, the motor 205 drives the gear 204 to rotate, which in turn drives the gear 203 to rotate, thereby driving the connecting shaft 202 and the turntable 200 to rotate synchronously, which in turn drives the steel leaf spring to move counterclockwise, so that the steel leaf spring moves to the left side of the detection bucket 601.

[0053] Driven by 506, the threaded rod 502 rotates, causing the drive disc 501 to rotate, which in turn causes the slide bar 505 to move outward along the slide groove 3 504. The slide bar 505 on the right pushes the assembly of the decorative cover plate 406 and the boss 407 to the right, which in turn causes the arc-shaped push plate 403 to push the leaf spring into the detection hopper 601. As the leaf spring moves inside the detection hopper 601, it compresses the measuring cloth 603. The measuring cloth 603 on the winding wheel 602 is gradually released until it adheres to the end of the leaf spring and bends at the end of the leaf spring. At this time, the camera 1 607 takes a picture of the scale on the measuring cloth 603 at the end of the leaf spring to measure the length of the leaf spring. At the same time, the camera 2 614 takes a picture from the top to measure the arc height of the leaf spring.

[0054] After the measurement is completed, the output shaft of cylinder 608 extends, and the push plate 611 pushes the steel leaf spring into the arc groove 201. At the same time, 506 drives the threaded rod 502 to rotate in the opposite direction, thereby driving the slide bar 505 to slide inward along the slide groove 504. The arc push plate 403 fits against the inner side of the steel leaf spring and moves into the arc groove 201.

[0055] As the slide bar 505 slides outward along the slide groove 3 504, the left slide bar 505 pushes the assembly of the left decorative cover plate 406 and boss 407 to move to the left. The arc-shaped push plate 403 pushes the steel leaf spring after detection on the left to the left side of the arc-shaped baffle 102. At the same time, when the threaded rod 502 rotates, it drives the bracket 701 to move downward along the guide rod 4 702. The assembly of the U-shaped plate 703 and pressure plate 704 moves downward. The pressure plate 704 pushes the steel leaf spring downward, causing the steel leaf spring to separate from the arc-shaped push plate 403, thus completing the unloading.

[0056] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dimensional accuracy testing device for machined parts, comprising a support platform assembly (100), characterized in that: The support platform assembly (100) is rotatably connected to a turntable (200), and the turntable (200) has an array of arc-shaped grooves (201) on its edge, which are used to accommodate the steel leaf spring to be tested. A feeding assembly (300) is provided on the front side of the support platform assembly (100), and the feeding assembly (300) is used for feeding steel leaf springs; The turntable (200) is arrayed with a pusher assembly (400), and a drive assembly (500) is provided above the pusher assembly (400). The drive assembly (500) is used to drive the two sets of pusher assemblies (400) distributed on the left and right to move away from each other and push the two sets of steel leaf springs distributed on the left and right out of the arc groove (201). A detection component (600) is provided on the right side of the support platform assembly (100), and the detection component (600) is used to detect the length of the leaf spring; a feeding component (700) is provided on the left side of the drive assembly (500), and the feeding component (700) is used to drive the leaf spring on the left side to separate from the pusher assembly (400). The detection assembly (600) includes a detection bucket (601) fixedly installed on the right side of the assembly of the tray (101) and the arc-shaped baffle (102). The detection bucket (601) is rotatably connected to the front and rear sides with winding wheels (602). A measuring cloth belt (603) is fixedly installed between the two sets of winding wheels (602). The detection bucket (601) has slots (605) through it on both sides. The measuring cloth belt (603) passes through the middle of the slots (605). A coil spring (604) is fixedly installed between the winding wheels (602) and the detection bucket (601). The coil spring (604) is used to drive the winding wheels (602) to wind up the measuring cloth belt (603). The surface of the measuring cloth belt (603) is provided with length scales (606). Two sets of cameras (607) are fixedly installed on the right side of the detection bucket (601) and distributed in front and behind. An arch frame (613) is fixedly installed on the top of the detection bucket (601), and a second camera (614) is fixedly installed in the middle of the arch frame (613). The second camera (614) takes pictures from above to measure the arc height of the steel leaf spring. An elastic pusher is provided inside the detection bucket (601), which is used to push the detected steel leaf spring back into the arc-shaped groove (201).

2. The dimensional accuracy testing equipment for machined parts according to claim 1, characterized in that: The support platform assembly (100) includes a tray (101), on which a plurality of arc-shaped baffles (102) are fixedly installed around the circumference of the tray (101). Three notches are formed between the plurality of arc-shaped baffles (102), and the three notches are respectively used for loading the steel leaf spring, unloading the steel leaf spring, and transferring the steel leaf spring to the detection assembly (600) for detection. The top array of the tray (101) and arc-shaped baffle (102) assembly is fixed with support plates (103), and mounting covers (104) are fixedly installed between the other ends of the plurality of support plates (103).

3. The dimensional accuracy testing equipment for machined parts according to claim 2, characterized in that: The turntable (200) is rotatably connected to the inside of the assembly body of the tray (101) and the arc-shaped baffle (102). A connecting shaft (202) is fixedly installed at the bottom of the turntable (200). The connecting shaft (202) is rotatably connected through the center of the tray (101). A gear one (203) is fixedly installed on the surface of the connecting shaft (202). The gear one (203) meshes with a gear two (204). A motor one (205) is fixedly installed at the bottom center of the gear two (204). The turntable (200) has an array of sliding grooves (206) on its surface. The sliding grooves (206) correspond one-to-one with the arc grooves (201). The sliding grooves (206) and the arc grooves (201) are connected. The turntable (200) has an arc groove (207) in the middle of the side wall of the arc grooves (201).

4. The dimensional accuracy testing equipment for machined parts according to claim 3, characterized in that: The feeding assembly (300) includes a feeding hopper (301) fixedly installed on the front side of the pallet (101) and arc-shaped baffle (102) assembly. A cylinder (302) is fixedly installed on the front side of the feeding hopper (301). The output end of the cylinder (302) is slidably connected to the feeding hopper (301). A push plate (303) is fixedly installed on the output end of the cylinder (302). Two sets of L-shaped plates (304) are fixedly installed on the front side of the bottom of the push plate (303). A support plate (305) is fixedly installed between the front ends of the two sets of L-shaped plates (304). Two sets of guide grooves (306) are opened through the bottom of the feeding hopper (301). The vertical parts of the two sets of L-shaped plates (304) are slidably connected through the guide grooves (306). The support plate (305) is attached to the bottom of the feeding hopper (301).

5. The dimensional accuracy testing equipment for machined parts according to claim 4, characterized in that: The bottom of the feeding hopper (301) is rotatably connected to two sets of rotating arms (307). The center of the two sets of rotating arms (307) is rotatably connected to the feeding hopper (301) through a connecting shaft. A sliding groove (308) is provided through one end of the outer side of the rotating arm (307). A sliding column (309) is slidably connected through the sliding groove (308). A sliding seat (310) is fixedly installed at the top of the sliding column (309). Two sets of guide rods (311) are fixedly installed on both sides of the feeding hopper (301). The guide rods (311) pass through the sliding seat (310), and the sliding seat (310) is slidably connected to the guide rods (311). Two sets of guide rods (312) are slidably connected through the middle of the slide (310). A clamping plate (313) is fixedly installed at one end of the two sets of guide rods (312) on the inner side of the feeding hopper (301). A spring (314) is fixedly installed between the clamping plate (313) and the slide (310). The spring (314) is used to drive the clamping plate (313) away from the slide (310). Both sides of the feeding hopper (301) are provided with clearance grooves (315) for the clamping plate (313) to pass through.

6. The dimensional accuracy testing equipment for machined parts according to claim 3, characterized in that: The pusher assembly (400) includes a slider (401) slidably connected in a slide groove (206), a connecting rod (402) fixedly mounted on the surface of the slider (401), an arc-shaped push plate (403) fixedly mounted on the other end of the connecting rod (402), an arc-shaped groove (207) for accommodating the arc-shaped push plate (403), and a spring (404) fixedly mounted between the slider (401) and the inner wall of the slide groove (206), the spring (404) for driving the slider (401) to move toward the center of the turntable (200); A magnetic block (405) is embedded in the center of the arc-shaped push plate (403), and the magnetic block (405) is used to attract the steel leaf spring; A decorative cover plate (406) is fixedly installed on the top of the slider (401) and the arc-shaped push plate (403). The decorative cover plate (406) covers the top opening of the slide groove (206). A boss (407) is fixedly installed on the top of the decorative cover plate (406).

7. The dimensional accuracy testing equipment for machined parts according to claim 6, characterized in that: The drive assembly (500) includes a drive disk (501) rotatably connected inside the mounting cover (104), a threaded rod (502) fixedly installed at the top center of the drive disk (501), the threaded rod (502) rotatably connected through the center of the mounting cover (104), and a fixing disk (503) fixedly installed at the bottom of the mounting cover (104), the fixing disk (503) fitting against the top of the decorative cover plate (406); The surface of the fixed plate (503) is provided with two sets of sliding grooves (504) distributed on the left and right. A sliding strip (505) is slidably connected in the sliding groove (504). A (506) is fixedly installed at the top of the threaded rod (502). The drive disk (501) has a spiral thread at the bottom and the slide bar (505) has a corresponding threaded groove at the top. The drive disk (501) and the slide bar (505) mesh with each other, and the slide bar (505) is used to push the boss (407) outward.

8. The dimensional accuracy testing equipment for machined parts according to claim 1, characterized in that: The elastic pusher includes a cylinder two (608) fixedly installed at the center of the right side of the detection bucket (601). The output end of the cylinder two (608) is slidably connected to the detection bucket (601). A mounting base (609) is fixedly installed at the output end of the cylinder two (608). Two sets of guide rods three (610) are slidably connected to the surface of the mounting base (609). A push plate (611) is fixedly installed between the left ends of the two sets of guide rods three (610). A spring three (612) is fixedly installed between the push plate (611) and the mounting base (609). The spring three (612) is used to drive the push plate (611) away from the mounting base (609).

9. The dimensional accuracy testing equipment for machined parts according to claim 7, characterized in that: The feeding assembly (700) includes a bracket (701) threadedly connected to a threaded rod (502). The right end of the bracket (701) has a threaded hole corresponding to the threaded rod (502). A guide rod four (702) is provided through the middle of the bracket (701). The guide rod four (702) is fixedly installed on the top of the mounting cover (104). A U-shaped plate (703) is fixedly installed on the lower left side of the bracket (701). A pressure plate (704) is fixedly installed on both ends of the U-shaped plate (703). An arc-shaped part is provided on the right end of the pressure plate (704). The arc center of the arc-shaped part of the pressure plate (704) is located on its upper side. A protective shell (705) is fixedly installed on the top of the mounting cover (104). An opening is reserved on the left side of the protective shell (705) to allow the bracket (701) to move. The protective shell (705) is sleeved on the outside of the threaded rod (502) and the guide rod (702). The threaded rod (502) is rotatably connected to the protective shell (705). The (506) is fixedly installed on the top of the protective shell (705).

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