Automation Equipment for Automatic Detection of Part Dimensions Based on Laser Linear Displacement Sensors

Abstract

The present invention discloses an automatic part size detection automation device based on a laser line displacement sensor, which includes a bracket. A laser displacement sensor capable of detecting the contour size of a part located below it is provided on the bracket. A transfer mechanism, a qualified product storage device, and a defective product storage device are provided on the bracket. The transfer mechanism is used to carry the part and move the part below the laser displacement sensor for size detection or move the part away from below the laser displacement sensor. A sorting device for sending the qualified parts sent out by the transfer mechanism into the qualified product storage device or sending the unqualified parts sent out by the transfer mechanism into the defective product storage device is provided between the transfer mechanism, the qualified product storage device, and the defective product storage device. A feeding mechanism for automatically supplying parts to the transfer mechanism is provided on the bracket. The laser displacement sensor, the transfer mechanism, the feeding mechanism, and the sorting device are controlled by a control system to work to achieve automatic size detection of batch parts.

Description

Technical Field

[0001] The present invention relates to an automatic detection automation device for part dimensions based on a laser line displacement sensor.

Background Art

[0002] In the inspection of mechanical parts, there are usually inspections of internal conical holes and external conical tapers. For example, the conical internal hole of a bushing or the external cone of the inner ring of a conical bearing. During mass production, the inspection of the internal hole taper or external cone taper of parts generally uses conical gauges such as plug gauges or snap rings for manual measurement one by one. The production efficiency is low, the labor cost is high. When performing manual batch inspections, workers constantly repeat the same operations, which easily causes physical and mental fatigue and is prone to human errors, misjudging defective products as good products or good products as defective products.

[0003] The present invention is made in view of this situation.

Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an automatic detection automation device for part dimensions based on a laser line displacement sensor, which is used to automatically detect the dimensions of parts, improve the part detection efficiency during mass part production, improve the accuracy of part detection, reduce the working intensity of staff, and save labor.

[0005] To solve the above technical problem, an automatic detection automation device for part dimensions based on a laser line displacement sensor of the present invention is characterized in that: it includes a bracket and a control system. A laser displacement sensor capable of detecting the contour dimensions of a part located below it from top to bottom is provided on the bracket. A transfer mechanism is provided below the laser displacement sensor on the bracket. The transfer mechanism is used to carry the part and move the part into the position below the laser displacement sensor for dimension detection or move the part away from below the laser displacement sensor. A feeding mechanism for automatically supplying parts to the transfer mechanism is provided on the bracket. A good product storage device for collecting qualified parts after being detected by the laser displacement sensor and a defective product storage device for collecting unqualified parts are provided on the bracket. A sorting device for sending the detected qualified parts sent out by the transfer mechanism into the good product storage device or sending the detected unqualified parts sent out by the transfer mechanism into the defective product storage device is provided between the transfer mechanism, the good product storage device and the defective product storage device. The laser displacement sensor, the transfer mechanism, the feeding mechanism and the sorting device are electrically connected to the control system.

[0006] The automatic detection automation device for part dimensions based on a laser line displacement sensor as described above is characterized in that: the transfer mechanism includes a detection channel passing through below the laser displacement sensor from left to right, and a conveying device for gradually conveying the parts on the detection channel from left to right.

[0007] The automatic detection automation equipment for part dimensions based on a laser line displacement sensor as described above is characterized in that: the feeding mechanism includes a sorting device for automatically sorting parts and sending out the sorted parts; a feeding channel is provided between the sorting device and the detection channel for the parts to move from the sorting device into the detection channel; a camera is provided above the feeding channel for detecting whether the tapered inner hole of the part or the outer cone of the part is placed reversely on the feeding channel; a pushing device is provided on one side of the feeding channel for pushing the reversely placed parts detected by the camera out of the feeding channel; a flipping device is provided on the other side of the feeding channel opposite to the pushing device for catching the parts pushed out by the pushing device and flipping the parts 180° up and down; and a return feeding device is provided on the bracket for conveying the parts on the flipping device into the detection channel.

[0008] The automatic detection automation equipment for part dimensions based on a laser line displacement sensor as described above is characterized in that: a storage area for temporarily storing parts is provided at the left end of the detection channel; a pushing device is provided on the bracket at the left end of the storage area for pushing the parts in the storage area to the right for the handling device to handle; and a side inlet communicating with the feeding channel is provided on the side of the storage area for the parts in the feeding channel to enter the storage area.

[0009] The automatic detection automation equipment for part dimensions based on a laser line displacement sensor as described above is characterized in that: the flipping device includes a rotary cylinder and a flipping frame; the flipping frame includes a vertical plate fixedly connected to the rotary cylinder; an upper and lower flat plate is horizontally arranged on the vertical plate; the vertical plate and the upper and lower flat plates form a clamping groove with three sides and three open sides through which the parts can enter and exit respectively; an anti-flipping platform is provided outside the flipping frame; a rotary groove for the flipping frame to rotate inside is provided on the anti-flipping platform; when the flipping frame rotates, the groove wall of the rotary groove blocks the outside of the downward opening of the flipping frame and prevents the parts from falling out of the opening of the flipping frame under the action of centrifugal force and gravity.

[0010] The automatic detection automation equipment for part dimensions based on a laser line displacement sensor as described above is characterized in that: the opening of the flipping frame opposite to the vertical plate is arranged corresponding to the pushing device and is for the pushing device to push the parts into the clamping groove through this opening; when the clamping groove is in the horizontal position, the clamping groove communicates with the storage area through an opening on one side of the flipping frame and a return feeding channel for the parts in the clamping groove to enter the storage area is formed therebetween; the return feeding device includes a return feeding cylinder that can extend into the clamping groove from the opening on the other side of the flipping frame to push the parts in the clamping groove into the storage area; when the clamping groove is in the horizontal position, the groove wall of the rotary groove on the side close to the storage area is equal to or lower than the lower bottom surface of the clamping groove, and the groove wall of the rotary groove far from the storage area is higher than the lower bottom surface of the clamping groove.

[0011] The automatic detection automation device for part dimensions based on a laser line displacement sensor as described above is characterized in that: the sorting device includes a rotatable rotating disk, and a fixed turntable frame surrounds the outside of the rotating disk. The rotating disk and the turntable frame enclose a circular cavity with a fixed side and a rotatable bottom. The feeding channel is connected to the cavity. The feeding channel includes a feeding section and a flipping section. The feeding section and the flipping section respectively include a left baffle, a right baffle and a bottom plate. The right baffle of the feeding section is tangentially connected to the turntable frame. One end of the left baffle extends into the cavity and forms a gap for parts to pass through between the turntable frame and the rotating disk. The flipping section leads to the detection channel. When the rotating disk rotates, the parts adhering to the turntable frame rotate with the rotating disk and enter the feeding channel from the gap. The rotating disk is a conical disk with a higher middle part and a lower outer part. A diversion plate is provided in the cavity to guide the parts in the middle of the cavity to the turntable frame when the rotating disk rotates. By continuously rotating the rotating disk and continuously feeding parts into the feeding channel, the parts push one another and move in the feeding channel. The flipping device is located outside the left baffle of the flipping section, and the pushing device is located outside the right baffle of the flipping section. A push-out port corresponding to the flipping device and for parts to enter the flipping device from the feeding channel is provided on the left baffle of the flipping section. The top of the bottom plate of the flipping section has an inclined surface that slopes downward from the side of the left baffle to the side of the right baffle. An adjusting plate connecting the left baffle and the right baffle is provided between the tops of the left baffle and the right baffle of the feeding section. The left baffle is detachably connected to the adjusting plate and can move left and right relative to the right baffle. The adjusting plate is provided with a strip-shaped hole, and the adjusting plate is connected and fixed to the left baffle by screws passing through the strip-shaped hole and the left baffle.

[0012] The automatic detection automation device for part dimensions based on a laser line displacement sensor as described above is characterized in that: the detection channel includes a bottom plate for supporting parts and allowing parts to slide thereon. A side baffle for blocking the parts on the bottom plate from one side is provided above the bottom plate. The handling device includes a handling plate arranged opposite to the side baffle, a clamping cylinder for driving the handling plate to approach or move away from the side baffle, and a moving cylinder for driving the handling plate to move left and right. A plurality of card slots with openings facing the side baffle are evenly arranged on the handling plate in the left-right direction. The distance between two adjacent card slots is the distance of one stroke for the moving cylinder to drive the handling plate to move left or right. When handling parts from left to right, the handling plate approaches the side baffle to clamp the parts between the side baffle and the card slots. The handling plate moves to the right, and the parts are held by the card slots and move to the right for one stroke along the side baffle.

[0013] The automatic detection automation equipment for part sizes based on a laser line displacement sensor as described above is characterized in that: the part feeding device includes a part feeding rack located at the right end of the detection channel, and a part feeding rotary cylinder for driving the part feeding rack to turn up and down. A part feeding groove is provided on the part feeding rack for the handling board to hold the part and move in and out. The left and right ends of the part feeding groove are open and can respectively supply parts to enter and exit. A defective product receiving flow channel with an inlet located directly below the part feeding rack is provided on the support. A non-defective product receiving flow channel with an inlet located below the right side of the part feeding rack is provided on the support. The non-defective product receiving flow channel and the defective product receiving flow channel respectively lead to a non-defective product storage device and a defective product storage device.

[0014] The automatic detection automation equipment for part sizes based on a laser line displacement sensor as described above is characterized in that: a mounting plate capable of moving up and down is slidably connected to the support. A motor for driving the mounting plate to move is provided on the support. The motor is in threaded connection and transmission with the mounting plate through a lead screw. The laser displacement sensor is installed at the bottom of the mounting plate through a cross slide.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. In the present invention, the laser displacement sensor, the transfer mechanism, the feeding mechanism and the part feeding device are controlled by the control system. Parts are provided by the feeding mechanism, and then the parts are sent below the laser displacement sensor by the transfer mechanism. The laser displacement sensor detects the sizes of the parts. After the detection is completed, the transfer mechanism moves the parts away from below the laser displacement sensor and sends them into the part feeding device. The part feeding device sends the parts that pass the detection into the non-defective product storage device and the parts that fail the detection into the defective product storage device, realizing the automatic size detection of batch parts, with high detection efficiency, high accuracy, few required staff and low labor intensity.

[0017] 2. The present invention combines a camera, a pushing device, a flipping device and a feeding-back device. During automatic feeding, it automatically detects whether the parts are placed in the wrong direction and automatically flips the parts placed in the wrong direction upside down, and then sends them for inspection, so that the part of the structure of the part that needs to be inspected is exposed upwards for the laser displacement sensor to detect, preventing errors in the feeding stage, resulting in the rejection of qualified parts due to the unqualified detection of the parts placed in the wrong direction by the laser displacement sensor. It is particularly suitable for detecting the taper and related dimensions of the conical structure of bushing parts with conical inner holes or parts with external cones. During inspection, the parts to be tested are batch-loaded into the sorting device, sorted by the sorting device and arranged in order in the feeding channel, and flow into the inspection channel. When the part moves to the camera in the feeding channel, the camera takes a photo to detect the front and back of the part. When the part is placed correctly, the part of the structure that needs to be inspected is exposed upwards for the laser displacement sensor to detect, otherwise it is placed in the wrong direction. When it is detected that the conical hole of the part is placed in the wrong direction, that is, the small end of the conical hole is located above and the large end is located below; or when it is detected that the external cone of the part is placed in the wrong direction, that is, the large end of the external cone is located above and the small end is located below; the pushing device pushes the part from the feeding channel into the flipping device, and the flipping device flips the part on it 180° upside down, so that the part is flipped from the wrong direction state to the correct direction state, so that the laser displacement sensor can process the contour of the conical structure and analyze its taper and related conical dimensions; then the feeding-back device sends the inverted part into the inspection channel, and the handling device moves it to the right and passes under the laser displacement sensor for inspection. By automatically detecting and correcting the conical parts placed in the wrong direction, the automatic and accurate feeding of conical parts is realized.

[0018] 3. The present invention flips the parts by means of a rotary cylinder and a flipping frame. The flipping frame is composed of a longitudinal plate and upper and lower flat plates, and forms a clamping groove with three open sides. The opening on the side corresponds to the pushing device, and the openings at both ends allow the feeding-back cylinder to extend from one end and push the parts in the clamping groove out from the other end into the storage area. The flipping frame rotates in the rotating groove on the anti-flipping table. When the clamping groove is in the horizontal position, the groove wall on the side of the rotating groove close to the storage area is equal to or lower than the lower bottom surface of the clamping groove, and the groove wall on the side of the rotating groove far from the storage area is higher than the lower bottom surface of the clamping groove. Before the flipping frame flips, the higher groove wall of the rotating groove blocks the part from the side, and the flipping frame flips towards this side, avoiding the part from being thrown out of the clamping groove at the beginning of flipping. During the flipping process, the groove wall of the rotating groove blocks the outside of the downward opening of the flipping frame, preventing the part from falling out of the opening of the flipping frame under the action of centrifugal force and gravity. The structure is simple and the control is convenient, and it can be used for flipping bushing parts or conical parts that can be placed flat with small height.

[0019] 4. In the present invention, a material distributing rack is arranged at the right end of the detection channel. The material distributing rack is provided with a material distributing groove that is open at both the left and right ends and can respectively supply and receive parts. The inlet of the defective product receiving channel is arranged directly below the material distributing rack, and the inlet of the non-defective product receiving channel is arranged below the right side of the material distributing rack. When the detected unqualified parts are sent into the material distributing groove through the handling plate, the material distributing rack flips to the left. Initially, the parts are blocked in the material distributing groove by the right end of the detection channel. When the downward-facing notch of the material distributing groove rotates downward out of the detection channel and reaches the inlet of the corresponding defective product receiving channel, there is no longer any obstruction at the downward-facing notch of the material distributing groove, and the parts fall from the material distributing groove into the defective product receiving channel and flow into the defective product storage device. When the detected qualified parts are sent into the material distributing groove through the handling plate and the handling plate returns, the material distributing rack flips to the right. After the material distributing groove tilts to the right, the parts fall from the diagonally downward notch into the non-defective product receiving channel and flow into the non-defective product storage device. The structure is simple and the control is convenient.

Description of the Drawings

[0020] The following further details the specific embodiments of the present invention with reference to the drawings, where:

[0021] Figure 1 is the structural schematic diagram of the present invention;

[0022] Figure 2 is Figure 1 the partial enlarged view at A in

[0023] Figure 3 is the structural schematic diagram of another perspective of the present invention;

[0024] Figure 4 is Figure 3 the partial enlarged view at B in

[0025] Figure 5 is the combined structural schematic diagram of the pushing device, the flipping device, and the material returning device;

[0026] Figure 6 is the structural schematic diagram of the feeding mechanism;

[0027] Figure 7 is the structural schematic diagram of the feeding channel at the flipping section.

Specific Embodiments

[0028] The following further describes the present invention with reference to the drawings:

[0029] Such as Figures 1 to 7An automatic detection automation device for part dimensions based on a laser line displacement sensor, including a bracket 1 and a control system. A laser displacement sensor 2 capable of detecting the contour dimensions of a part 10 located below it from top to bottom is provided on the bracket 1. A transfer mechanism 3 is provided below the laser displacement sensor 2 on the bracket 1. The transfer mechanism 3 is used to carry the part 10 and move the part 10 into the position below the laser displacement sensor 2 for dimension detection or move the part 10 away from the position below the laser displacement sensor 2. A feeding mechanism 4 for automatically supplying parts to the transfer mechanism 3 is provided on the bracket 1. A good product storage device 5 for collecting qualified parts after being detected by the laser displacement sensor 2 and a defective product storage device 6 for collecting unqualified parts are provided on the bracket 1. A sorting device 7 for sending the detected qualified parts sent out by the transfer mechanism 3 into the good product storage device 5 or sending the detected unqualified parts sent out by the transfer mechanism 3 into the defective product storage device 6 is provided between the transfer mechanism 3, the good product storage device 5 and the defective product storage device 6. The laser displacement sensor 2, the transfer mechanism 3, the feeding mechanism 4 and the sorting device 7 are electrically connected to the control system. Parts are provided by the feeding mechanism 4, and then the parts are sent below the laser displacement sensor 2 by the transfer mechanism 3. The laser displacement sensor 2 performs dimension detection on the parts. After the detection is completed, the transfer mechanism 3 moves the parts away from the position below the laser displacement sensor 2 and sends them into the sorting device 7. The sorting device 7, according to the detection results, sends the detected qualified parts into the good product storage device 5 and sends the detected unqualified parts into the defective product storage device 6, realizing the automatic dimension detection of batch parts, with high detection efficiency, high accuracy, few required staff, and low labor intensity.

[0030] The transfer mechanism 3 includes a detection channel 31 passing through from below the laser displacement sensor 2 from left to right, and a conveying device 32 for gradually conveying the part 10 on the detection channel 31 from left to right, with a simple structure.

[0031] The feeding mechanism 4 includes a sorting device 41 for automatically sorting parts and sending out the sorted parts. A feeding channel 42 for the parts to move from the sorting device 41 to the detection channel 31 is provided between the sorting device 41 and the detection channel 31. A camera 43 for detecting whether the tapered inner hole of the part or the outer cone of the part is placed reversely on the feeding channel 42 is provided above the feeding channel 42. A pushing device 44 for pushing the reversely placed part 10 detected by the camera 43 out of the feeding channel 42 is provided on one side of the feeding channel 42. A flipping device 45 for receiving the part 10 pushed out by the pushing device 44 and flipping the part 10 by 180° up and down is provided on the other side of the feeding channel 42 opposite to the pushing device 44. A return feeding device 46 for conveying the part 10 on the flipping device 45 to the detection channel 31 is provided on the bracket 1.

[0032] Therefore, the automatic detection automation equipment for part dimensions can be used to detect the taper and related dimensions of the conical structure of bushing parts with tapered inner holes, such as Figure 1 and Figure 3 the part 10 shown in; or for detecting the taper and related dimensions of the conical structure of parts with external cones. During detection, the parts to be measured are batch-loaded into the sorting device 41, sorted by the sorting device 41 and arranged in order in the feeding channel 42, and flow into the detection channel 31. When the part moves to the camera 43 in the feeding channel 42, the camera 43 takes pictures to detect the front and back of the part. When the part is placed correctly, the structure of the part that needs to be measured is exposed upward for the laser displacement sensor 2 to detect, and vice versa for the reverse placement. When it is detected that the tapered hole of the part is placed in reverse, that is, the small end of the tapered hole is located above and the large end is located below; or when it is detected that the external cone of the part is placed in reverse, that is, the large end of the external cone is located above and the small end is located below; the pushing device 44 pushes the part out of the feeding channel 42 into the flipping device 45, and the flipping device 45 flips the part on it 180° up and down, so that the part is flipped from the reverse placement state to the correct placement state, so that the laser displacement sensor 2 can process the contour of the conical structure and analyze its taper and related conical dimensions; then the reversed part is sent into the detection channel 31 by the return device 46, and is carried by the handling device 32 to the right and detected under the laser displacement sensor 2. By automatically detecting and correcting the reversely placed conical parts, the automatic and accurate feeding of conical parts is realized, preventing feeding errors, resulting in the laser displacement sensor 2 detecting the reversely placed parts as unqualified and causing qualified parts to be scrapped.

[0033] For the specific detection principle, the contour of the part can be processed by the laser displacement sensor 2 to obtain the contour dimensions of the part, and the control system then calculates the corresponding dimension parameters according to the contour dimensions. For example, when detecting the taper of a cone, the small end dimension d, large end dimension D and length L and other contour dimensions of the cone are obtained by the laser displacement sensor 2, and the taper is obtained according to the calculation formula (D - d)÷L.

[0034] A storage area 311 for temporarily storing the part 10 is provided at the left end of the detection channel 31. A pushing device 33 for pushing the part 10 in the storage area 311 to the right for handling by the handling device 32 is provided at the left end of the storage area 311 on the bracket 1. A side inlet 312 communicating with the feeding channel 42 and allowing the part 10 in the feeding channel 42 to enter the storage area 311 is provided on the side of the storage area 311, with a simple structure.

[0035] The pushing device 44 and the pushing device 33 respectively include a pushing cylinder 441 and a push plate 442 connected to the piston rod of the pushing cylinder 441, with a simple structure and convenient control.

[0036] The flipping device 45 includes a rotary cylinder 451 and a flipping frame. The flipping frame includes a vertical plate 452 fixedly connected to the rotary cylinder 451. A top and bottom flat plate 453 is horizontally arranged on the vertical plate 452. The vertical plate 452 and the top and bottom flat plate 453 form a clamping groove 454 with three sides and three open sides, and the openings can respectively allow the parts 10 to enter and exit. An anti-flipping platform 455 is arranged on the outer side of the flipping frame. A rotating groove 456 for the flipping frame to rotate inside is arranged on the anti-flipping platform 455. When the flipping frame rotates, the groove wall of the rotating groove 456 blocks the outside of the downward opening of the flipping frame and prevents the parts 10 from falling out of the opening of the flipping frame under the action of centrifugal force and gravity. The structure is simple and the control is convenient. It can be used for flipping shaft sleeve-like or conical parts that are small in height and can be laid flat.

[0037] The opening of the flipping frame opposite to the vertical plate 452 corresponds to the pushing device 44 and allows the pushing device 44 to push the parts 10 into the clamping groove 454 through this opening. When the clamping groove 454 is in the flat position, the clamping groove 454 communicates with the storage area 311 through the opening on one side of the flipping frame, and a return material channel 450 for the parts in the clamping groove 454 to enter the storage area 311 is formed between them. The return material device 46 includes a return material cylinder 461 that can extend into the clamping groove 454 from the opening on the other side of the flipping frame to push the parts 10 in the clamping groove 454 into the storage area 311. When the clamping groove 454 is in the flat position, the groove wall of the rotating groove 456 on the side close to the storage area 311 is equal to or lower than the lower bottom surface of the clamping groove 454, and the groove wall of the rotating groove 456 on the side far from the storage area 311 is higher than the lower bottom surface of the clamping groove 454. Before the flipping frame flips, the higher side groove wall of the rotating groove 456 blocks the parts 10 from the side. The flipping frame flips towards this side to prevent the parts 10 from being thrown out of the clamping groove 454 at the beginning of flipping. During the flipping process, the groove wall of the rotating groove 456 blocks the outside of the downward opening of the flipping frame to prevent the parts 10 from falling out of the opening of the flipping frame under the action of centrifugal force and gravity. After the flipping is completed, the parts are pushed out of the clamping groove 454 by the return material cylinder 461 and sent into the storage area 311 through the return material channel 450.

[0038] The sorting device 41 includes a rotatable rotating disk 411 driven by a motor to rotate. A fixed turntable frame 412 is arranged around the outer side of the rotating disk 411. The rotating disk 411 and the turntable frame 412 enclose a circular cavity 410 with a fixed side and a rotatable bottom. The feeding channel 42 is communicated with the cavity 410. The feeding channel 42 includes a feeding section 4201 and a turning section 4202. The feeding section and the turning section respectively include a left baffle 422, a right baffle 423 and a bottom plate 424. The right baffle 423 of the feeding section is tangentially connected to the turntable frame 412. One end of the left baffle 422 extends into the cavity 410 and forms a gap 413 for parts to pass through between the turntable frame 412 and the rotating disk 411. The turning section leads to the detection channel 31. When the rotating disk 411 rotates, the parts adhering to the turntable frame 412 rotate with the rotating disk 411 and are transferred into the feeding channel 42 from the gap 413. The rotating disk 411 is a conical disk with a higher middle part and a lower outer part. A guide plate 414 is arranged in the cavity 410 to guide the parts 10 in the middle of the cavity 410 to the turntable frame 412 when the rotating disk 411 rotates. This sorting device 41 is convenient for sorting sleeve-like or conical parts. For example, Figure 1 as shown, during sorting, the parts 10 are poured into the cavity 410 in batches. The rotating disk 411 rotates clockwise, driving the parts 10 to rotate. The parts corresponding to the gap 413 pass through the gap 413 and flow into the feeding channel 42. By continuously rotating the rotating disk 411 and continuously feeding parts into the feeding channel 42, the parts push one another and move in the feeding channel 42. Some of the parts 10 in the middle of the cavity 410, located inside the corresponding position of the gap 413, are guided by the guide plate 414 when the rotating disk 411 rotates, so that these parts slide down along the inclined surface of the rotating disk 411 to the periphery for turning out from the gap 413, with a simple structure. The sorting device 41 can also adopt a vibrating disk structure.

[0039] The flipping device 45 is located outside the left baffle 422 of the flipping section, and the pushing device 44 is located outside the right baffle 423 of the flipping section. A push outlet 420 corresponding to the flipping device 45 and through which the part 10 enters the flipping device 45 from the feeding channel 42 is provided on the left baffle 422 of the flipping section. The top of the bottom plate 424 of the flipping section has an inclined surface 421. Since the parts move one by one in the feeding channel 42, the inclined surface 421 slopes downward from the side of the left baffle 422 to the side of the right baffle 423, causing the parts at the inclined surface 421 in the feeding channel 42 to slope obliquely downward to the side opposite to the push outlet 420 under their own weight, preventing the parts at the push outlet 420 from being squeezed by the front and rear parts and automatically sliding out of the push outlet 420 when the part 10 moves in the feeding channel 42. When the inclined surface 421 extends all the way to the storage area 311, the inclined surface 421 is higher than the bottom surface of the storage area 311 for the parts on the inclined surface 421 to slide into the storage area 311; and the inclined surface 421 is lower than the top surface of the bottom plate of the feeding section so that the parts can enter the flipping section from the feeding section.

[0040] An adjusting plate 425 connecting the two is provided between the tops of the left baffle 422 and the right baffle 423 of the feeding section. A strip hole 426 is provided on the adjusting plate 425. The adjusting plate 425 is detachably connected to the left baffle 422 through a screw passing through the strip hole 426, and the left baffle 422 can move left and right relative to the right baffle 423 to adjust the distance between the left baffle 422 and the right baffle 423 of the feeding section, so as to adjust the width of the feeding channel 42 in the feeding section according to the size of the parts to adapt to the feeding of parts of different sizes.

[0041] The detection channel 31 includes a bottom plate 310 for supporting the parts and allowing the parts to slide thereon. A side baffle 313 for blocking the parts on the bottom plate 310 from one side is provided above the bottom plate 310. The handling device 32 includes a handling plate 321 arranged opposite to the side baffle 313, a clamping cylinder 322 for driving the handling plate 321 to approach or move away from the side baffle 313, and a moving cylinder 323 for driving the handling plate 321 to move left and right. The handling plate 321 is fixedly connected to the clamping cylinder 322. The clamping cylinder 322 is slidably connected to the bottom plate 310 or the bracket 1, and the moving cylinder 323 is connected to the clamping cylinder 322.

[0042] A plurality of card slots 324 with the slot openings facing the side baffle 313 are evenly arranged on the handling plate 321 in the left-right direction. The distance between two adjacent card slots 324 is the distance of one stroke for the moving cylinder 323 to drive the handling plate 321 to move left or right. When handling parts from left to right, the handling plate 321 leans against the side baffle 313 to clamp the part 10 between the side baffle 313 and the card slot 324. Then the handling plate 321 moves to the right, and the part 10 is clamped by the card slot 324 to make the part 10 move rightward for one stroke along with the side baffle 313. Then the handling plate 321 moves away from the side baffle 313 to release the part 10 and returns to the left. By repeating the control of the reciprocating motion of the handling plate 321, the parts are gradually handled from left to right one by one. Among them, after the handling of a certain stroke is completed, the handled part is located below the laser displacement sensor 2. The structure is simple, the control is convenient, and it is convenient for the conveying of bushing-like or conical parts.

[0043] A spring top 325 for pressing the part 10 is arranged in the card slot 324, so as to elastically clamp the part between the side baffle 313 and the card slot 324, which is suitable for the clamping and detection of parts of different sizes.

[0044] The material distribution device 7 includes a material distribution frame 72 located at the right end of the detection channel 31, and a material distribution rotary cylinder 71 for driving the material distribution frame 72 to turn up and down. A material distribution slot 721 through which the handling plate 321 can hold and pass the part 10 is arranged on the material distribution frame 72. The left and right ends of the material distribution slot 721 are open and can respectively allow the part 10 to enter and exit. A defective product receiving flow channel 73 with an entrance located directly below the material distribution frame 72 is arranged on the support 1. A non-defective product receiving flow channel 74 with an entrance located below the right side of the material distribution frame 72 is arranged on the support 1. The non-defective product receiving flow channel 74 and the defective product receiving flow channel 73 respectively lead to the non-defective product storage device 5 and the defective product storage device 6. When the unqualified part is sent into the material distribution slot 721 by the handling plate 321 and the handling plate 321 returns, the material distribution frame 72 turns to the left. At the beginning, the part is blocked in the material distribution slot 721 by the right end of the detection channel 31. When the downward slot opening of the material distribution slot 721 turns downward out of the detection channel 31 and turns to the entrance of the corresponding defective product receiving flow channel 73, there is no longer any blockage at the downward slot opening of the material distribution slot 721, and the part falls from the material distribution slot 721 into the defective product receiving flow channel 73 and flows into the defective product storage device 6; when the qualified part is sent into the material distribution slot 721 by the handling plate 321 and the handling plate 321 returns, the material distribution frame 72 turns to the right. After the material distribution slot 721 inclines to the right, the part falls from the downward-sloping slot opening into the non-defective product receiving flow channel 74 and flows into the non-defective product storage device 5. The structure is simple and the control is convenient.

[0045] The good product storage device 5 and the defective product storage device 6 respectively include a storage box 51. A storage cylinder 52 and a storage plate 53 for pushing the parts stacked at the entrance of the storage box 51 to the inside of the storage box 51 are provided on one side of the storage box 51 at the entrance.

[0046] A mounting plate 11 capable of moving up and down is slidably connected to the bracket 1. A motor 12 for driving the movement of the mounting plate 11 is provided on the bracket 1. The motor 12 is in threaded connection with the mounting plate 11 through a lead screw for transmission. The laser displacement sensor 2 is installed at the bottom of the mounting plate 11 through a cross slide 13 so as to adjust the height and horizontal position of the laser displacement sensor 2 according to the detected parts for accurate measurement.

Claims

1. An automatic part size detection automation device based on a laser line displacement sensor, Characterized in that: It includes a bracket (1) and a control system. A laser displacement sensor (2) capable of detecting the contour dimensions of a part (10) located below it from top to bottom is provided on the bracket (1). A transfer mechanism (3) is provided below the laser displacement sensor (2) on the bracket (1). The transfer mechanism (3) is used to carry the part (10) and move the part (10) into the position below the laser displacement sensor (2) for dimension detection or move the part (10) away from below the laser displacement sensor (2). A feeding mechanism (4) for automatically supplying parts to the transfer mechanism (3) is provided on the bracket (1). A good product storage device (5) for collecting qualified parts after being detected by the laser displacement sensor (2) and a defective product storage device (6) for collecting unqualified parts are provided on the bracket (1). A sorting device (7) for sending the detected qualified parts sent out by the transfer mechanism (3) into the good product storage device (5) or sending the detected unqualified parts sent out by the transfer mechanism (3) into the defective product storage device (6) is provided between the transfer mechanism (3), the good product storage device (5) and the defective product storage device (6). The laser displacement sensor (2), the transfer mechanism (3), the feeding mechanism (4) and the sorting device (7) are electrically connected to the control system. The transfer mechanism (3) includes a detection channel (31) passing through from below the laser displacement sensor (2) from left to right, and a conveying device (32) for gradually conveying the part (10) on the detection channel (31) from left to right. The feeding mechanism (4) includes a sorting device (41) for automatically sorting parts and sending out the sorted parts. A feeding channel (42) for the part to move from the sorting device (41) to the detection channel (31) is provided between the sorting device (41) and the detection channel (31). A camera (43) for detecting whether the tapered inner hole of the part or the outer cone of the part is placed upside down on the feeding channel (42) is provided above the feeding channel (42). A pushing device (44) for pushing the part (10) detected by the camera (43) and placed upside down out of the feeding channel (42) is provided on one side of the feeding channel (42). The pushing device (44) includes a pushing cylinder (441) and a push plate (442) connected to the piston rod of the pushing cylinder (441). A turning device (45) opposite to the pushing device (44) and used to catch the part (10) pushed out by the pushing device (44) and then turn the part (10) 180° up and down is provided on the other side of the feeding channel (42). A return feeding device (46) for conveying the part (10) on the turning device (45) to the detection channel (31) is provided on the bracket (1). A storage area (311) for temporarily storing the part (10) is provided at the left end of the detection channel (31). The turning device (45) includes a rotary cylinder (451) and a turning frame. The turning frame includes a longitudinal plate (452) fixedly connected to the rotary cylinder (451). A upper and lower flat plate (453) is horizontally arranged on the longitudinal plate (452).The longitudinal plate (452) and the upper and lower flat plates (453) form a clamping groove (454) with three sides and an opening on the other three sides, and the opening can respectively allow the part (10) to enter and exit. An anti-overturning platform (455) is provided on the outer side of the turnover frame. A rotating groove (456) for the turnover frame to rotate therein is provided on the anti-overturning platform (455). When the turnover frame rotates, the groove wall of the rotating groove (456) blocks the outer side of the downward opening of the turnover frame and prevents the part (10) from falling out of the opening of the turnover frame under the action of centrifugal force and gravity. The opening of the turnover frame opposite to the longitudinal plate (452) is correspondingly provided with a pushing device (44), and the pushing device (44) is used to push the part (10) into the clamping groove (454) from this opening. When the clamping groove (454) is in the horizontal position, the clamping groove (454) communicates with the storage area (311) through the opening on one side of the turnover frame, and a return material channel (450) for the part in the clamping groove (454) to enter the storage area (311) is formed therebetween. The return material device (46) includes a return material cylinder (461) that can extend into the clamping groove (454) from the opening on the other side of the turnover frame and push the part (10) in the clamping groove (454) into the storage area (311). When the clamping groove (454) is in the horizontal position, the groove wall of the rotating groove (456) on the side close to the storage area (311) is equal to or lower than the lower bottom surface of the clamping groove (454), and the groove wall of the rotating groove (456) on the side far from the storage area (311) is higher than the lower bottom surface of the clamping groove (454).

2. The automatic part size detection automation device based on a laser line displacement sensor according to claim 1, Characterized in that: A pushing device (33) for pushing the parts (10) in the storage area (311) to the right for the handling device (32) to handle is provided at the left end of the storage area (311) on the bracket (1), and a side inlet (312) communicating with the feeding channel (42) and allowing the parts (10) in the feeding channel (42) to enter the storage area (311) is provided on the side of the storage area (311).

3. The automatic part size detection automation device based on a laser line displacement sensor according to claim 1 or 2, Characterized in that: The sorting device (41) includes a rotatable rotating disk (411), and a fixed turntable frame (412) is arranged around the outside of the rotating disk (411). The rotating disk (411) and the turntable frame (412) enclose a circular cavity (410) with a fixed side and a rotatable bottom. The feeding channel (42) is communicated with the cavity (410). The feeding channel (42) includes a feeding section (4201) and a turning section (4202). The feeding section and the turning section respectively include a left baffle (422), a right baffle (423) and a bottom plate (424). The right baffle (423) of the feeding section is tangentially connected to the turntable frame (412). One end of the left baffle (422) extends into the cavity (410) and a gap (413) for parts to pass through is formed between the left baffle (422) and the turntable frame (412) and the rotating disk (411). The turning section leads to the detection channel (31). When the rotating disk (411) rotates, the parts adhering to the turntable frame (412) rotate with the rotating disk (411) and enter the feeding channel (42) from the gap (413). The rotating disk (411) is a conical disk with a higher middle part and a lower outer part. A flow guide plate (414) for guiding the parts (10) in the middle of the cavity (410) to the turntable frame (412) when the rotating disk (411) rotates is arranged in the cavity (410). By continuously rotating the rotating disk (411) and continuously feeding parts into the feeding channel (42), the parts push one another and move in the feeding channel (42). The turning device (45) is located outside the left baffle (422) of the turning section. The pushing device (44) is located outside the right baffle (423) of the turning section. A push-out port (420) corresponding to the turning device (45) and for the parts (10) to enter the turning device (45) from the feeding channel (42) is arranged on the left baffle (422) of the turning section. The top of the bottom plate (424) of the turning section has an inclined surface (421), and this inclined surface (421) slopes downward from the side of the left baffle (422) to the side of the right baffle (423). An adjusting plate (425) connecting the two is arranged between the tops of the left baffle (422) and the right baffle (423) of the feeding section. The left baffle (422) is detachably connected to the adjusting plate (425) and can move left and right relative to the right baffle (423). A strip-shaped hole (426) is arranged on the adjusting plate (425), and the adjusting plate (425) is connected and fixed to the left baffle (422) by screws passing through the strip-shaped hole (426).

4. The automatic part size detection automation equipment based on a laser linear displacement sensor according to claim 1 or 2, characterized in that: The detection channel (31) includes a bottom plate (310) for supporting the part and allowing the part to slide thereon. Above the bottom plate (310), there is a side baffle (313) for blocking the part on the bottom plate (310) from one side. The handling device (32) includes a handling plate (321) arranged opposite to the side baffle (313), a clamping cylinder (322) for driving the handling plate (321) to approach or move away from the side baffle (313), and a moving cylinder (323) for driving the handling plate (321) to move left and right. On the handling plate (321), a plurality of card slots (324) with the slot openings facing the side baffle (313) are evenly arranged in the left-right direction. The distance between two adjacent card slots (324) is the distance of one stroke when the moving cylinder (323) drives the handling plate (321) to move left or right. When handling the part from left to right, the handling plate (321) leans towards the side baffle (313) to clamp the part (10) between the side baffle (313) and the card slot (324), and the handling plate (321) moves to the right, and the part (10) is held by the card slot (324) to make the part (10) move to the right by one stroke along the side baffle (313).

5. The automatic part size detection automation equipment based on a laser linear displacement sensor according to claim 4, characterized in that: The material distribution device (7) includes a material distribution rack (72) located at the right end of the detection channel (31), and a material distribution rotary cylinder (71) for driving the material distribution rack (72) to turn up and down. On the material distribution rack (72), there is a material distribution slot (721) through which the handling plate (321) can hold the part (10) to enter and exit. The left and right ends of the material distribution slot (721) are open and can respectively allow the part (10) to enter and exit. On the bracket (1), there is a defective product receiving flow channel (73) with an inlet located directly below the material distribution rack (72), and a non-defective product receiving flow channel (74) with an inlet located below the right side of the material distribution rack (72). The non-defective product receiving flow channel (74) and the defective product receiving flow channel (73) respectively lead to a non-defective product storage device (5) and a defective product storage device (6).

6. The automatic part size detection automation equipment based on a laser linear displacement sensor according to claim 1 or 2, characterized in that: A mounting plate (11) that can move up and down is slidably connected to the bracket (1). On the bracket (1), there is a motor (12) for driving the mounting plate (11) to move. The motor (12) is in threaded connection with the mounting plate (11) through a lead screw for transmission. The laser displacement sensor (2) is installed at the bottom of the mounting plate (11) through a cross slide (13).

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