Intelligent detection jig for precision parts

Abstract

The invention belongs to the field of rectifier bridge detection, and provides a precise part intelligent detection jig which comprises a detection table, a mounting cover is mounted at the bottom of the detection table, a rotating pipe is rotatably mounted in the mounting cover, one end, extending to the top of the detection table, of the rotating pipe is fixedly connected with a station rotating disc, the station rotating disc is provided with a plurality of stations, and the stations are arranged on the detection table. The station rotating disc is provided with a plurality of stations which are a detection station, a discharging station, a feeding station and a clamping station, and the multiple stations of the station rotating disc are each provided with a positioning and clamping mechanism. According to the invention, the component is positioned and clamped through the positioning and clamping mechanism, and when the positioning and clamping mechanism drives the component to move below the detection assembly, the output end of the detection assembly can be accurately connected to each pin of the component without repeated adjustment, so that the connection time is greatly saved, and the detection efficiency is improved; and each machine only needs one worker to be responsible for feeding and discharging, a large number of detection posts do not need to be arranged, and the labor cost is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of rectifier bridge detection, and particularly relates to an intelligent detection jig for precision parts. BACKGROUND

[0002] The rectifier bridge is a power distribution module unit for converting alternating current into direct current output. The input and output of the rectifier bridge are connected to the outside through pins. The rectifier bridge encapsulates rectifier tubes in a shell.

[0003] During production, manufacturers need to detect each rectifier bridge after encapsulation to ensure product quality.

[0004] In the prior art, the detection of the rectifier bridge is mostly manually operated, such as using a multimeter and manually connecting an alligator clip to each rectifier bridge pin for testing. Since the rectifier bridge is small in size and the alligator clip is large in size, it is not easy to connect the manual clamp to the pin of the rectifier bridge, which may cause misclamping and missing clamping. Therefore, it is necessary to repeatedly adjust the position of the clamp, which is very troublesome and wastes a lot of time, resulting in low detection efficiency. Moreover, when the number of rectifier bridges to be detected is large, the testing workload is great, and the unqualified rate is usually low. However, in order to ensure the quality of the rectifier bridge, each rectifier bridge needs to be detected. Therefore, multiple detection positions need to be set, which increases the labor cost. SUMMARY

[0005] The application aims to provide an intelligent detection jig for precision parts, which aims to solve the technical problems of high labor cost and low detection efficiency caused by manual detection of the rectifier bridge in the prior art.

[0006] The application is implemented as follows. An intelligent detection jig for precision parts comprises a detection table, a mounting cover is installed at the bottom of the detection table, a rotating pipe is rotatably installed in the mounting cover, a work station turntable is fixedly connected to one end of the rotating pipe extending to the top of the detection table, a plurality of evenly distributed positioning and clamping mechanisms are installed on the work station turntable, the positioning and clamping mechanisms are used for clamping components, each positioning and clamping mechanism is a work station, and there are four positioning and clamping mechanisms, which are a detection work station, a blanking work station, a feeding work station, and a clamping work station. A first servo motor is fixedly installed on the side surface of the mounting cover, and a transmission pair is connected between the output shaft of the first servo motor and the rotating pipe.

[0007] A detection assembly is further installed on the detection table, the output end of the detection assembly is located above the detection work station, and the detection assembly is used for detecting the components on the positioning and clamping mechanisms.

[0008] A fixing post is fixedly installed on the mounting cover. One end of the fixing post passes through the inside of the rotating tube and extends to the top of the workstation turntable. A fixing plate is fixedly installed on the top of the fixing post. A clamping power component and a release component are fixedly installed on the fixing plate. The positions of the clamping power component and the release component are adapted to the clamping station and the unloading station, respectively. The clamping power component is used to position and clamp the component by the positioning clamping mechanism, which facilitates the subsequent detection of the component by the detection component. The release component is used to release the clamping mechanism from the component, which facilitates the unloading of the component.

[0009] Further technical solution: The positioning and clamping mechanism includes a mounting platform fixedly installed on the workstation turntable. A feeding platform, a guide rail, and a limiting head are fixedly installed on the mounting platform in sequence. A clamping slider is slidably installed on the guide rail. The clamping slider is located between the feeding platform and the limiting head. A first compression spring is connected between the limiting head and the clamping slider. A positioning groove adapted to the component is opened on the side of the clamping slider near the feeding platform.

[0010] A release wedge is fixedly installed on the side of the clamping slider, and the release wedge has an inclined surface.

[0011] A limiting mechanism is installed between the mounting platform and the release wedge. When the clamping slider releases the components, the limiting mechanism is used to fix the release wedge and the clamping slider.

[0012] Further technical solution: The limiting mechanism includes a fixed cylinder fixedly installed on the mounting platform, a wedge block slidably installed inside the fixed cylinder, a second compression spring connected between the wedge block and the fixed cylinder, and a limiting triangular block adapted to the wedge block fixedly connected to the bottom of the releasing wedge block;

[0013] The wedge-shaped block is fixedly connected to a toothed block that cooperates with the clamping power assembly. The toothed block has an inclined surface at one end extending out of the fixed cylinder, and the side of the fixed cylinder has a sliding hole for the toothed block to move.

[0014] Further technical solution: The positioning and clamping mechanism further includes a buffer assembly, which includes a thickened copper tube, a third mounting bracket, and a permanent magnet. The thickened copper tube is fixedly mounted on the mounting platform, the third mounting bracket is fixedly mounted on the side of the clamping slider, and the permanent magnet is fixedly mounted on the end of the third mounting bracket. The axis of the permanent magnet coincides with the axis of the thickened copper tube.

[0015] A further technical solution: The clamping power assembly includes a third telescopic rod fixedly installed on a fixed plate, a fourth mounting frame fixedly installed on the movable end of the third telescopic rod, and a release roller that cooperates with the toothed block rotatably installed on the fourth mounting frame.

[0016] Further technical solutions: The limiting component includes a fourth telescopic rod fixedly installed on the fixed disc, a fifth mounting rack is fixedly installed at the movable end of the fourth telescopic rod, and a guide wheel matched with the limiting wedge is rotatably installed on the fifth mounting rack.

[0017] Further technical solutions: The detection component includes a fixed rack fixedly installed on the detection table, a linear module is installed on the side surface of the fixed rack, an installation block is installed at the output end of the linear module, a detection instrument is fixedly installed on the side surface of the installation block, detection probes in contact with the pins of the components are arranged on the bottom of the detection instrument, and the detection probes are located directly above the component pins.

[0018] Further technical solutions: The detection table is further provided with a material receiving mechanism, the material receiving mechanism includes a material blowing component, a material receiving component and a material receiving box, and the material receiving box is installed on the side surface of the detection table.

[0019] The material blowing component includes a second telescopic rod and a gas pump fixedly installed on the detection table, a second mounting rack is fixedly installed at the movable end of the second telescopic rod, a blowing pipe is fixedly installed on the top of the second mounting rack, the blowing pipe is communicated with a sealing cover penetrating the end of the detection table, a blowing hole is arranged on the work station turntable, a gas conveying hole and a discharging gas hole are arranged on the installation table and the material discharging table respectively and are communicated with each other, the gas conveying hole is communicated with the blowing hole, a hose is communicated with the gas outlet of the gas pump, and one end of the hose is communicated with the blowing pipe.

[0020] The material receiving component includes a first telescopic rod fixedly installed on the detection table, a first mounting rack is fixedly installed at the movable end of the first telescopic rod, a bellows is fixedly installed at the end of the first mounting rack, the bellows is located above the components at the discharging station, a material conveying pipe is fixedly installed on the detection table through a second connecting piece, one end of the bellows is fixedly connected with one end of the material conveying pipe, and the other end of the bellows extends into the interior of the material receiving box.

[0021] Further technical solutions: The material receiving mechanism further includes a material receiving table and a second servo motor, the material receiving table and the second servo motor are fixedly installed in the interior of the material receiving box, the second servo motor is located on the inner side of the material receiving table, a buffer plate is fixedly connected with the output shaft of the second servo motor, a buffer pad is arranged on the top of the buffer plate, one end of the material conveying pipe is fixedly installed on the material receiving box through a first fixing piece, initially, one end of the material conveying pipe is located directly above the buffer pad, a material scraping plate is further fixedly installed on the side surface of the material receiving box, the material scraping plate is located above the material receiving table, the distance from the bottom of the material scraping plate to the top of the buffer pad is less than the thickness of the components, and the distance from the bottom of the buffer plate to the surface of the material receiving table is less than the thickness of the components.

[0022] Compared with the prior art, the beneficial effects of the present application are as follows:

[0023] 1. This invention, by setting up a workstation turntable, a positioning clamping mechanism and a detection component, allows the positioning clamping mechanism to position and clamp components. When the positioning clamping mechanism moves the components to the bottom of the detection component, the output end of the detection component can be accurately connected to each pin of the components without repeated adjustments, greatly saving connection time and improving detection efficiency. Moreover, each machine only requires one worker to be responsible for loading and unloading, eliminating the need for a large number of detection positions and reducing labor costs.

[0024] 2. In this invention, by setting a limiting mechanism, the release component will drive the clamping slider to move backward during unloading, and then the limiting mechanism will fix the clamping slider, leaving space for placing components between the clamping slider and the unloading table, which makes it convenient for workers to load materials directly and shortens the loading time.

[0025] 3. In this invention, by setting up a thickened copper tube and a permanent magnet, when the clamping slider moves towards the unloading platform, the clamping slider drives the permanent magnet to insert into the thickened copper tube. The thickened copper tube provides resistance and buffer for the permanent magnet, so that the clamping slider slowly contacts the component and slowly clamps and fixes the component, thereby avoiding the clamping slider from impacting the component and preventing the component from being damaged.

[0026] 4. This invention, by setting up a blowing component, a receiving component, and a receiving box, allows components to be blown into the receiving component by the blowing component and then moved along the receiving component into the receiving box. This solves the problem of manual material handling, and compared to a robotic arm, this mechanism has a lower cost, making it affordable even for small factories. This mechanism does not require staff assistance, greatly shortens the material unloading time, avoids damage to components, and improves both material unloading and testing efficiency.

[0027] 5. In this invention, by setting up a receiving platform, a buffer plate, and a scraper, the components moving along the conveying conduit will fall onto the buffer pad. The buffer pad cushions the components, and the scraper scrapes the components off the buffer pad onto the receiving platform. When feeding again, the buffer pad can push the components on the surface of the receiving platform onto the slope of the receiving platform and fall into the receiving box. This mechanism can prevent the components from directly impacting the receiving box and also prevent a large number of components from accumulating below the end of the conveying conduit, thereby preventing the accumulated components from affecting the discharge of the conveying conduit. Attached Figure Description

[0028] Figure 1 This is a top view of the overall structure of the present invention.

[0029] Figure 2 In this invention Figure 1 Enlarged diagram of point A in the middle.

[0030] Figure 3Front view structure diagram of positioning and clamping mechanism in the application.

[0031] Figure 4 Partial structure diagram of positioning and clamping mechanism in the application.

[0032] Figure 5 Front view structure diagram of positioning and clamping mechanism in the application. Figure 1 Enlarged diagram at B in the application.

[0033] Figure 6 Front view structure diagram of positioning and clamping mechanism in the application. Figure 1 Enlarged diagram at C in the application.

[0034] Figure 7 Overall side view structure diagram in the application.

[0035] Figure 8 Front view structure diagram of positioning and clamping mechanism in the application. Figure 8 Enlarged diagram at E in the application.

[0036] Figure 9 Overall oblique view structure diagram in the application.

[0037] Figure 10 Front view structure diagram of positioning and clamping mechanism in the application. Figure 9 Enlarged diagram at D in the application.

[0038] Figure 11 Overall partial bottom view structure diagram in the application.

[0039] Figure 12 Structure diagram of material receiving assembly in the application.

[0040] Figure 13 Partial sectional structure diagram of positioning and clamping mechanism installation in the application.

[0041] In the attached diagram: 1. Inspection table; 2. Workstation turntable; 3. Receiving mechanism; 31. Receiving box; 32. Second servo motor; 33. Buffer pad; 34. Buffer plate; 35. First fixing component; 36. Conveying conduit; 37. Receiving platform; 38. Scraper; 39. First telescopic rod; 310. First mounting bracket; 311. Corrugated pipe; 312. Sealing cover; 313. Air blowing pipe; 314. Second mounting bracket; 315. Second telescopic rod; 316. Hose; 317. Air pump; 318. Air blowing hole; 4. Fixing plate; 5. Positioning and clamping mechanism; 51. Discharge platform; 52. Discharge air hole; 53. Positioning groove; 54. Buffer assembly; 541. Thickened copper pipe; 542. Permanent magnet; 543. Third mounting bracket; 55. Clamping slide. 56. Mounting platform; 57. Release wedge block; 58. Limiting mechanism; 581. Toothed block; 582. Second compression spring; 583. Fixed cylinder; 584. Wedge block; 585. Limiting triangular block; 59. First compression spring; 510. Guide rail; 511. Limiting head; 512. Air inlet; 6. Detection assembly; 61. Linear module; 62. Mounting block; 63. Detector; 64. Detection probe; 65. Fixing frame; 7. Clamping power assembly; 71. Third telescopic rod; 72. Fourth mounting frame; 73. Release roller; 8. First servo motor; 9. Release assembly; 91. Fourth telescopic rod; 92. Fifth mounting frame; 93. Guide wheel; 10. Components; 11. Fixed column; 12. Rotating tube; 13. Mounting cover. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0043] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0044] like Figures 1-13 As shown, this invention provides an intelligent inspection fixture for precision parts, including an inspection table 1. An installation cover 13 is mounted on the bottom of the inspection table 1. A rotating tube 12 is rotatably mounted inside the installation cover 13. A station turntable 2 is fixedly connected to one end of the rotating tube 12 extending to the top of the inspection table 1. Multiple evenly distributed positioning and clamping mechanisms 5 are mounted on the station turntable 2. The positioning and clamping mechanisms 5 are used to position and clamp components 10. In this embodiment, each positioning and clamping mechanism 5 is a station, and there are four positioning and clamping mechanisms 5 in total: an inspection station, a loading station, a loading station, and a clamping station. A first servo motor 8 is fixedly mounted on the side of the installation cover 13. A transmission pair connects the output shaft of the first servo motor 8 to the rotating tube 12.

[0045] The testing station 1 is also equipped with a testing component 6. The output end of the testing component 6 is located above the testing station. The testing component 6 is used to test the components 10 on the positioning and clamping mechanism 5.

[0046] A fixing post 11 is fixedly installed on the mounting cover 13. One end of the fixing post 11 passes through the inside of the rotating tube 12 and extends to the top of the workstation turntable 2. A fixing plate 4 is fixedly installed on the top of the fixing post 11. A clamping power assembly 7 and a release assembly 9 are fixedly installed on the fixing plate 4. The positions of the clamping power assembly 7 and the release assembly 9 are adapted to the clamping station and the unloading station, respectively. The clamping power assembly 7 is used to position and clamp the component 10 by the positioning clamping mechanism 5, which facilitates the subsequent detection of the component 10 by the detection assembly 6. The release assembly 9 is used to release the clamping mechanism 5 from the component 10, which facilitates the unloading of the component 10.

[0047] Specifically, at the loading station, the worker places component 10 onto the positioning and clamping mechanism 5. The first servo motor 8 drives the rotating tube 12 and the station turntable 2 to rotate one station through the transmission pair. The positioning and clamping mechanism 5 drives component 10 to rotate to the clamping station. The clamping power component 7 drives the output end of the positioning and clamping mechanism 5 to position and clamp component 10. Then, the first servo motor 8 drives the station turntable 2 to rotate one station. The detection component 6 detects component 10 on the positioning and clamping mechanism 5. Then, the first servo motor 8 drives the station turntable 2 to rotate one station again, so that the detected component 10 rotates to the unloading station. The release component 9 drives the output end of the positioning and clamping mechanism 5 to move in the opposite direction, thereby releasing the clamping of component 10, allowing component 10 to be unloaded at this point.

[0048] In this invention, the component 10 is placed on the positioning and clamping mechanism 5, which can position and clamp the component 10. When the positioning and clamping mechanism 5 moves the component 10 to the bottom of the detection component 6, the output end of the detection component 6 can be accurately connected to each pin of the component 10 without repeated adjustments, which greatly saves connection time and improves detection efficiency. Moreover, each machine only requires one worker to be responsible for loading and unloading, eliminating the need to set up a large number of detection positions and reducing labor costs.

[0049] In this embodiment, component 10 is a rectifier bridge, and the detection component 6 can detect parameters such as forward voltage drop (Vf), reverse leakage current (Ir), insulation resistance, and on-state voltage drop (full bridge) of component 10. These detection principles are existing technologies and will not be described in detail here.

[0050] The precision part intelligent detection jig provided by the application, in the embodiment, the positioning and clamping mechanism 5 comprises a mounting table 56 fixedly installed on the work station turntable 2, a feeding table 51, a guide rail 510 and a limiting head 511 are sequentially fixedly installed on the mounting table 56, a clamping sliding block 55 is slidably installed on the guide rail 510, the clamping sliding block 55 is located between the feeding table 51 and the limiting head 511, a first compression spring 59 is connected between the limiting head 511 and the clamping sliding block 55, and a positioning groove 53 matched with the component 10 is formed in the side surface of the clamping sliding block 55 close to the feeding table 51; the component 10 is placed on the feeding table 51, then the clamping sliding block 55 extrudes the component 10 on the feeding table 51 under the action of the first compression spring 59, at the same time, the component 10 is clamped into the positioning groove 53 to position the component 10, and subsequent detection is facilitated;

[0051] In order to facilitate pushing away of the clamping sliding block 55 to release the component 10, a limiting release wedge 57 is fixedly installed on the side surface of the clamping sliding block 55, the limiting release wedge 57 is provided with an inclined surface, and the output end of the limiting release assembly 9 extrudes the inclined surface of the limiting release wedge 57, so that the clamping sliding block 55 is reversely pushed out, thereby releasing the component 10;

[0052] In order to fix the clamping sliding block 55 to facilitate feeding on the feeding table 51, a limiting mechanism 58 is installed between the mounting table 56 and the limiting release wedge 57, and the limiting mechanism 58 is used for fixing the limiting release wedge 57 and the clamping sliding block 55 after the clamping sliding block 55 releases the component 10.

[0053] The precision part intelligent detection jig provided by the application, in the embodiment, the limiting mechanism 58 comprises a fixed cylinder 583 fixedly installed on the mounting table 56, a wedge-shaped block 584 is slidably installed in the fixed cylinder 583, a second compression spring 582 is connected between the wedge-shaped block 584 and the fixed cylinder 583, and a limiting triangular block 585 matched with the wedge-shaped block 584 is fixedly connected to the bottom of the limiting release wedge 57; when the clamping sliding block 55 drives the limiting release wedge 57 and the fixed cylinder 583 to retreat (moves in a direction away from the feeding table 51), the fixed cylinder 583 extrudes the wedge-shaped block 584 and passes over the wedge-shaped block 584, after the fixed cylinder 583 passes over the wedge-shaped block 584, the wedge-shaped block 584 returns to the original position under the action of the second compression spring 582, when the limiting release assembly 9 releases the clamping sliding block 55, the clamping sliding block 55 moves towards the feeding table 51 under the action of the first compression spring 59, then the limiting triangular block 585 is blocked by the wedge-shaped block 584, so that a space is left between the clamping sliding block 55 and the feeding table 51, and subsequent feeding is facilitated;

[0054] In order to remove the wedge-shaped block 584 from the blocking of the limiting triangular block 585, the side of the wedge-shaped block 584 is fixedly connected with a tooth block 581 matched with the clamping power assembly 7, and the end of the tooth block 581 extending from the fixed cylinder 583 is provided with an inclined surface, and the side of the fixed cylinder 583 is provided with a sliding hole for the tooth block 581 to move.

[0055] Specifically, when the clamping of the sliding block 55 is removed, the output end of the clamping power assembly 7 extrudes the tooth block 581, and the tooth block 581 drives the wedge-shaped block 584 to move downward, when the top of the wedge-shaped block 584 is lower than the bottom of the limiting triangular block 585, the wedge-shaped block 584 no longer blocks the limiting triangular block 585, and then the clamping sliding block 55 moves to the direction of the feeding table 51, so as to position and clamp the component 10 on the feeding table 51.

[0056] The precision part intelligent detection jig provided by the present application has small friction between the clamping sliding block 55 and the guide rail 510, and after the clamping of the clamping sliding block 55 is removed, under the large elasticity of the first compression spring 59, the clamping sliding block 55 will quickly impact the component 10, which may cause damage to the component 10, therefore, in the embodiment, the positioning and clamping mechanism 5 further comprises a buffer assembly 54, the buffer assembly 54 comprises a thickened copper pipe 541, a third mounting frame 543 and a permanent magnet 542, the thickened copper pipe 541 is fixedly installed on the mounting table 56, the third mounting frame 543 is fixedly installed on the side of the clamping sliding block 55, and the permanent magnet 542 is fixedly installed on the end of the third mounting frame 543, and the axis of the permanent magnet 542 coincides with the axis of the thickened copper pipe 541.

[0057] Specifically, when the clamping sliding block 55 moves to the direction of the feeding table 51, the clamping sliding block 55 drives the permanent magnet 542 to insert into the thickened copper pipe 541 through the third mounting frame 543, and the permanent magnet 542 moves in the thickened copper pipe 541, and the thickened copper pipe 541 buffers the resistance of the permanent magnet 542, so that the clamping sliding block 55 slowly contacts the component 10 and slowly clamps and fixes the component 10, thereby avoiding the impact of the clamping sliding block 55 on the component 10.

[0058] The principle of the thickened copper tube 541 buffering the permanent magnet 542 is as follows: when the permanent magnet 542 moves in the thickened copper tube 541, the magnetic field around the permanent magnet 542 changes constantly with the movement, and copper is a good conductor, and the changing magnetic field will induce a ring current, i.e. Eddy Current, in the inner wall of the thickened copper tube 541. According to Lenz's law, the direction of the induced current is always opposite to the change of the magnetic field that causes it, so the Eddy Current will generate a new magnetic field opposite to the direction of the magnetic field of the permanent magnet 542, which is equivalent to forming an "repulsion magnetic field" on one side of the permanent magnet 542 and an "attraction magnetic field" on the other side of the permanent magnet 542. Therefore, when the permanent magnet 542 moves, it is subjected to a reverse resistance (electromagnetic damping), which greatly reduces the movement speed of the permanent magnet 542, thereby achieving buffering of the permanent magnet 542 and the clamping slider 55.

[0059] Moreover, since the resistance between the permanent magnet 542 and the thickened copper tube 541 is entirely from the electromagnetic field, the permanent magnet 542 has no physical contact with the thickened copper tube 541, and thus there is no mechanical friction.

[0060] When the permanent magnet 542 is stationary in the thickened copper tube 541, no Eddy Current is generated due to no change in the magnetic field, and the resistance between the thickened copper tube 541 and the permanent magnet 542 disappears, so the clamping slider 55 can firmly clamp the component 10 on the feeding table 51.

[0061] In addition, factors affecting the resistance between the permanent magnet 542 and the thickened copper tube 541 include:

[0062] 1) Strength of the permanent magnet 542: The stronger the permanent magnet 542 (the greater the change rate of the magnetic field), the stronger the induced Eddy Current, the greater the resistance, and the slower the falling.

[0063] 2) Conductivity of the thickened copper tube 541: The better the conductivity of the thickened copper tube 541 (such as pure copper), the stronger the Eddy Current, and the more obvious the resistance.

[0064] 3) Wall thickness of the thickened copper tube 541: The thicker the wall, the smaller the resistance of the Eddy Current path, and the stronger the resistance.

[0065] 4) Diameter of the thickened copper tube 541: The tube diameter is best matched with the size of the permanent magnet 542 (the permanent magnet 542 is close to the wall of the thickened copper tube 541, and the magnetic field cutting is more sufficient).

[0066] 5) Temperature: At low temperature, the copper resistance decreases, the Eddy Current is stronger, and the resistance is greater.

[0067] In actual production, the parameters of the permanent magnet 542 and the thickened copper tube 541 can be adjusted according to the elastic coefficient of the first compression spring 59 selected, so that the permanent magnet 542 and the thickened copper tube 541 are optimally matched.

[0068] The precision part intelligent detection jig provided by the application, in the embodiment, the clamping power assembly 7 comprises a third telescopic rod 71 fixedly installed on the fixed disc 4, the movable end of the third telescopic rod 71 is fixedly installed with a fourth mounting bracket 72, and the fourth mounting bracket 72 is rotatably installed with a limit releasing roller 73 matched with the toothed block 581.

[0069] Specifically, in the clamping station, the third telescopic rod 71 drives the limit releasing roller 73 to move to the toothed block 581, the limit releasing roller 73 is in contact with and extrudes the inclined surface of the toothed block 581, the toothed block 581 can be extruded downwards, the toothed block 581 drives the wedge-shaped block 584 to move downwards, so that the blocking of the limiting triangular block 585 is released, and the clamping sliding block 55 can position and clamp the component 10 on the discharging table 51.

[0070] The precision part intelligent detection jig provided by the application, in the embodiment, the limit releasing assembly 9 comprises a fourth telescopic rod 91 fixedly installed on the fixed disc 4, the movable end of the fourth telescopic rod 91 is fixedly installed with a fifth mounting bracket 92, and the fifth mounting bracket 92 is rotatably installed with a guide wheel 93 matched with the limit releasing wedge block 57.

[0071] Specifically, in the discharging station, the fourth telescopic rod 91 drives the guide wheel 93 to move to the limit releasing wedge block 57, the guide wheel 93 is in contact with and extrudes the inclined surface of the limit releasing wedge block 57, the guide wheel 93 drives the limit releasing wedge block 57 and the clamping sliding block 55 to retreat, the fixation of the clamping sliding block 55 on the component 10 is released, when the limit releasing wedge block 57 drives the limiting triangular block 585 to pass the wedge-shaped block 584, the fourth telescopic rod 91 drives the guide wheel 93 to retreat, then the limiting triangular block 585 is blocked by the wedge-shaped block 584, so that the space for placing the component 10 is left between the clamping sliding block 55 and the discharging table 51.

[0072] The precision part intelligent detection jig provided by the application, in the embodiment, the detection assembly 6 comprises a fixed frame 65 fixedly installed on the detection table 1, the side surface of the fixed frame 65 is installed with a linear module 61, the output end of the linear module 61 is installed with a mounting block 62, the side surface of the mounting block 62 is fixedly installed with a detector 63, the bottom of the detector 63 is provided with a detection probe 64 in contact with the pin of the component 10, and the detection probe 64 is located directly above the pin of the component 10.

[0073] Specifically, when the positioning and clamping mechanism 5 drives the component 10 to rotate to the detection station, the linear module 61 drives the mounting block 62 and the detector 63 to descend, the detector 63 drives the detection probe 64 to be in contact with the pin of the component 10, so that the detector 63 can detect the component 10.

[0074] The detector 63 used in the application is an integrated tester, which can test parameters such as Vf, Ir, insulation resistance, etc. at one time, automatically determine OK / NG, and perform alarm to remind the staff.

[0075] The integrated tester is prior art, such as NSAT-2000, which adopts an ALL IN ONE mode, adapts different packaged devices through a unified interface; it supports multiple instrument parallel communication (such as programmable power supply, electronic load, digital multimeter); it has the functions of automatically saving data and report generation; it supports the detection of core parameters such as forward voltage drop (Vf) of rectifier bridge, reverse leakage current (Ir), insulation resistance, etc., and can be compatible with diodes, triodes and other discrete devices, and the principle thereof will not be described here.

[0076] The application provides a precision part intelligent detection jig. In the prior art, some small factories may not be able to afford a mechanical arm for feeding and discharging, and still use manual feeding and discharging. However, due to the small size of the component 10 (the largest rectifier bridge may be slightly larger than the thumb of a worker according to different models), it is inconvenient for the worker to pick up (relatively speaking, the feeding difficulty is less than the discharging difficulty, because the worker only needs to pinch the component 10 with two fingers, move the component 10 above the discharging table 51, and then release the component 10, and the component 10 will naturally fall onto the discharging table 51, and then the positioning groove 53 can position and clamp the component 10, so accurate positioning is not required when feeding the component 10; when discharging, the worker can only use a small part of the fingers to touch the component 10 because the discharging table 51 blocks the fingers, and it is difficult to stably pinch the component 10, especially in a very short time, which may cause the component 10 to fall and cause discharging difficulty during the process of picking up the component 10), therefore, in the embodiment, the detection table 1 is also provided with a receiving mechanism 3, and the receiving mechanism 3 comprises a blowing assembly, a receiving assembly and a receiving box 31, and the receiving box 31 is installed on the side of the detection table 1.

[0077] The blowing assembly comprises a second telescopic rod 315 and a gas pump 317 fixedly installed on the detection table 1, the movable end of the second telescopic rod 315 is fixedly installed with a second mounting bracket 314, the top of the second mounting bracket 314 is fixedly installed with a blowing pipe 313, the end of the detection table 1 is communicated with a sealing cover 312 through the blowing pipe 313, the blowing hole 318 is formed in the work station turntable 2, the gas conveying hole 512 and the discharging gas hole 52 are formed in the mounting table 56 and the discharging table 51 respectively and are in communication with each other, the gas conveying hole 512 is in communication with the blowing hole 318, the gas outlet of the gas pump 317 is communicated with a hose 316, and one end of the hose 316 is in communication with the blowing pipe 313.

[0078] The material receiving assembly comprises a first telescopic rod 39 fixedly installed on the detection table 1, a first mounting frame 310 is fixedly installed at the movable end of the first telescopic rod 39, a bellows 311 is fixedly installed at the end of the first mounting frame 310, the bellows 311 is located above the component 10 at the unloading station, a material conveying pipe 36 is also fixedly installed on the detection table 1 through a second connecting piece, one end of the bellows 311 is fixedly connected with one end of the material conveying pipe 36, and the other end of the bellows 311 extends into the interior of the material receiving box 31.

[0079] Specifically, when unloading, the unlimiting assembly 9 drives the clamping sliding block 55 to retreat, and the fixing state of the component 10 is released, then the second telescopic rod 315 drives the blowing pipe 313 and the sealing cover 312 to ascend, so that the sealing cover 312 is in contact with the bottom of the station turntable 2 and the sealing cover 312 is in communication with the blowing hole 318, then the first telescopic rod 39 drives the bellows 311 to descend through the first mounting frame 310, so that the bellows 311 covers the component 10, then the air pump 317 is started, the air pump 317 introduces high-pressure gas into the blowing hole 318 through the hose 316 and the blowing pipe 313, the high-pressure gas passes through the gas conveying hole 512 and is sprayed out from the unloading gas hole 52, the high-pressure gas can top the component 10 into the bellows 311, and the component 10 falls into the material receiving box 31 along the material conveying pipe 36, and the unloading process is completed.

[0080] After unloading, the first telescopic rod 39 drives the bellows 311 to ascend, so that the bellows 311 is away from the positioning and clamping mechanism 5, avoiding damaging the bellows 311 by the positioning and clamping mechanism 5, the second telescopic rod 315 drives the blowing pipe 313 and the sealing cover 312 to descend, so that the sealing cover 312 is away from the station turntable 2, avoiding damaging the integrity of the sealing cover 312 by the station turntable 2, then the station turntable 2 can be continuously rotated, the component 10 that has been detected is rotated to the unloading station, and the above process is repeated, so that the component 10 thereon is unloaded.

[0081] The mechanism is composed of existing components 10, and compared with a mechanical arm, the cost of the mechanism is lower, even a small factory can afford it, the mechanism can complete rapid unloading of the components 10 without the assistance of workers, greatly shortens the unloading time, avoids damage to the components 10, improves the unloading efficiency, and also improves the detection efficiency of the entire detection process.

[0082] The precision part intelligent detection jig provided by the application, in the process that the component 10 falls into the receiving box 31 through the feeding conduit 36, the component 10 will impact on the bottom of the receiving box 31, which can cause damage to the component 10, in the embodiment, the receiving mechanism 3 further comprises a receiving table 37 and a second servo motor 32, both of which are fixedly installed inside the receiving box 31, the receiving table 37 is an arc-shaped block, one end of the arc-shaped block is provided with a slope, the second servo motor 32 is located on the inner side of the receiving table 37, the output shaft of the second servo motor 32 is fixedly connected with a buffer plate 34, the top of the buffer plate 34 is provided with a buffer pad 33, the buffer pad 33 is made of sponge material, one end of the feeding conduit 36 is fixedly installed on the receiving box 31 through a first fixing piece 35, initially, one end of the feeding conduit 36 is located directly above the buffer pad 33, the side surface of the receiving box 31 is further fixedly installed with a scraping plate 38, the scraping plate 38 is located above the receiving table 37, the distance from the bottom of the scraping plate 38 to the top of the buffer pad 33 is less than the thickness of the component 10, and the distance from the bottom of the buffer plate 34 to the surface of the receiving table 37 is less than the thickness of the component 10.

[0083] Specifically, the component 10 entering the feeding conduit 36 will finally fall on the buffer pad 33, the buffer pad 33 buffers the component 10, then the second servo motor 32 drives the buffer pad 33 to rotate, when passing through the scraping plate 38, the component 10 on the buffer pad 33 is blocked, and the component 10 will fall on the receiving table 37, then the second servo motor 32 drives the buffer pad 33 to rotate for one circle and stop below the feeding conduit 36 again, when feeding again, the second servo motor 32 drives the buffer pad 33 to rotate again, then the buffer pad 33 can push the component 10 on the surface of the receiving table 37 to the slope of the receiving table 37, and under the action of gravity, the component 10 falls into the receiving box 31, while the component 10 on the buffer pad 33 falls on the receiving table 37, which is circulated, so that the component 10 can avoid directly impacting the receiving box 31, and a large number of components 10 can also avoid accumulating below the end of the feeding conduit 36, thereby avoiding that the accumulated components 10 affect the feeding of the feeding conduit 36.

[0084] In the application, the first telescopic rod 39, the second telescopic rod 315, the third telescopic rod 71 and the fourth telescopic rod 91 are hydraulic telescopic rods or pneumatic telescopic rods.

[0085] The above merely describes the preferred embodiments of the application and is not used to limit the application, and any modification, equivalent replacement and improvement made within the spirit and principle of the application shall be included in the protection scope of the application.

[0086] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. An intelligent detection jig for precision parts, comprising a detection table, characterized in that, The bottom of the detection table is provided with a mounting cover, a rotating pipe is rotatably arranged in the mounting cover, one end of the rotating pipe extends to the top of the detection table and is fixedly connected with a work station turntable, a plurality of work stations are arranged on the work station turntable, which are respectively a detection station, a blanking station, a feeding station and a clamping station, a positioning and clamping mechanism is arranged on each work station of the work station turntable, and the positioning and clamping mechanism is used for clamping components, a first servo motor is fixedly arranged on the side of the mounting cover, and a transmission pair is connected between the output shaft of the first servo motor and the rotating pipe; A detection assembly is further arranged on the detection table, and the output end of the detection assembly is located above the detection station, and the detection assembly is used for detecting the components on the positioning and clamping mechanism; A fixed column is fixedly arranged on the mounting cover, one end of the fixed column extends to the top of the work station turntable from the inside of the rotating pipe, a fixed disc is fixedly arranged on the top of the fixed column, a clamping power assembly and a releasing assembly are fixedly arranged on the fixed disc, the positions of the clamping power assembly and the releasing assembly are matched with the clamping station and the blanking station respectively, the clamping power assembly is used for positioning and clamping the components by the positioning and clamping mechanism, and the releasing assembly is used for releasing the clamping of the components by the positioning and clamping mechanism.

2. The precision part intelligent detection fixture of claim 1, wherein The positioning and clamping mechanism comprises a mounting table fixedly arranged on the work station turntable, a feeding table, a guide rail and a limiting head are sequentially fixedly arranged on the mounting table, a clamping sliding block is slidably arranged on the guide rail, a first compression spring is connected between the limiting head and the clamping sliding block, and a positioning groove matched with the components is formed in the side of the clamping sliding block close to the feeding table; A releasing wedge is fixedly arranged on the side of the clamping sliding block; A limiting mechanism is arranged between the mounting table and the releasing wedge, and the limiting mechanism is used for fixing the releasing wedge and the clamping sliding block after the clamping sliding block releases the components.

3. The precision part intelligent detection fixture of claim 2, wherein, The limiting mechanism comprises a fixed cylinder fixedly arranged on the mounting table, a wedge-shaped block is slidably arranged in the fixed cylinder, a second compression spring is connected between the wedge-shaped block and the fixed cylinder, and a limiting triangular block matched with the wedge-shaped block is fixedly connected to the bottom of the releasing wedge; A tooth block matched with the clamping power assembly is fixedly connected to the side of the wedge-shaped block.

4. The precision part intelligent detection fixture of claim 2, wherein, The positioning and clamping mechanism further comprises a buffer assembly, the buffer assembly comprises a thickened copper pipe, a third mounting frame and a permanent magnet, the thickened copper pipe is fixedly arranged on the mounting table, the third mounting frame is fixedly arranged on the side of the clamping sliding block, and the permanent magnet is fixedly arranged on the end of the third mounting frame, the axis of the permanent magnet coincides with the axis of the thickened copper pipe.

5. The precision part intelligent detection fixture of claim 1 or 3, wherein, The clamping power assembly comprises a third telescopic rod fixedly arranged on the fixed disc, a fourth mounting frame is fixedly arranged on the movable end of the third telescopic rod, and a releasing roller is rotatably arranged on the fourth mounting frame. 6.The precision part intelligent detection fixture according to claim 1 or 2, characterized in that, The releasing assembly comprises a fourth telescopic rod fixedly arranged on the fixed disc, a fifth mounting frame is fixedly arranged on the movable end of the fourth telescopic rod, and a guide wheel is rotatably arranged on the fifth mounting frame.

7. The precision part intelligent detection fixture of claim 1, wherein The detection assembly includes a fixed frame fixedly installed on a detection table, a linear module is installed on the side of the fixed frame, an installation block is installed at the output end of the linear module, a detector is fixedly installed on the side of the installation block, a detection probe is arranged at the bottom of the detector, and the detection probe is located directly above the pin of the component.

8. The precision part intelligent detection fixture of claim 1, wherein, A material receiving mechanism is also installed on the detection table, and the material receiving mechanism includes a material blowing assembly, a material receiving assembly and a material receiving box. The material blowing assembly includes a second telescopic rod and a gas pump fixedly installed on the detection table, a second installation frame is fixedly installed at the movable end of the second telescopic rod, a blowing pipe is fixedly installed at the top of the second installation frame, the blowing pipe is communicated with a sealing cover penetrating through the end of the detection table, a blowing hole is arranged on the work station turntable, a gas conveying hole and a discharging hole are respectively arranged on the installation table and the material placing table and are communicated with each other, the gas conveying hole is communicated with the blowing hole, a hose is communicated with the gas outlet of the gas pump, and one end of the hose is communicated with the blowing pipe. The material receiving assembly includes a first telescopic rod fixedly installed on the detection table, a first installation frame is fixedly installed at the movable end of the first telescopic rod, a bellows is fixedly installed at the end of the first installation frame, the bellows is located above the component at the discharging station, a material conveying pipe is also fixedly installed on the detection table through a second connecting piece, one end of the bellows is fixedly connected with one end of the material conveying pipe, and the other end of the bellows extends into the material receiving box. 9.The precision part intelligent detection fixture of claim 8, wherein, The material receiving mechanism also includes a material receiving table and a second servo motor, both of which are fixedly installed in the material receiving box, the second servo motor is located on the inner side of the material receiving table, a buffer plate is fixedly connected with the output shaft of the second servo motor, a buffer pad is arranged at the top of the buffer plate, one end of the material conveying pipe is fixedly installed on the material receiving box through a first fixing piece, initially, the one end of the material conveying pipe is located directly above the buffer pad, a material scraping plate is also fixedly installed on the side of the material receiving box, the material scraping plate is located above the material receiving table, the distance from the bottom of the material scraping plate to the top of the buffer pad is less than the thickness of the component, and the distance from the bottom of the buffer plate to the surface of the material receiving table is less than the thickness of the component.

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