Capacitance and resistance testing device

Abstract

The invention relates to the field of capacitance and resistance detection, and discloses a capacitance and resistance testing device. The device comprises a conveying mechanism for conveying a capacitor or a resistor, an identification mechanism for identifying the resistor, the capacitor type and the placing direction, a rotating mechanism, an overturning mechanism, a conveying mechanism for receiving and clamping a pin of a vertical state element and conveying the pin to a test station, a resistor test mechanism and a capacitor test mechanism, the static elimination module is arranged on the conveying path at the downstream of the testing mechanism and used for neutralizing static electricity left on the surfaces of the tested elements; and the intelligent sorting output module is arranged at the downstream of the static elimination module and used for automatically classifying and outputting the elements according to testing results. The whole process is automatic, and the efficiency is remarkably improved; and the static elimination module is integrated in the middle of the test process, so that the test safety and accuracy are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of capacitor resistance detection, in particular to a capacitor resistance testing device. BACKGROUND

[0002] In the manufacturing of electronic products, in order to ensure the performance of the circuit, the LCR parameters of resistors, capacitors and other components need to be accurately tested before mounting. The traditional testing method relies on manual contact of the pins of the components with the clamping electrodes of the LCR tester one by one, which is low in efficiency and prone to errors or static damage caused by human operation. For batch research and development testing or small batch production verification, an integrated device capable of automatically completing feeding, positioning, testing, protection and sorting is urgently needed to improve testing efficiency, consistency and component safety. SUMMARY

[0003] To solve at least one of the above problems, the present application provides a capacitor resistance testing device, which comprises a conveying mechanism for conveying capacitors or resistors, an identification mechanism for identifying the types and orientations of resistors and capacitors, a rotating mechanism, a turnover mechanism, a conveying mechanism, a resistance testing mechanism, a capacitor testing mechanism, an electrostatic elimination module and an intelligent sorting output module. The identification mechanism and the turnover mechanism are both installed on the conveying mechanism, and the turnover mechanism is used to adsorb and turn the horizontally placed resistors or capacitors adjusted by the rotating mechanism to a state with the pins vertically downward. The conveying mechanism is connected downstream of the turnover mechanism and is used to receive and clamp the pins of the resistors or capacitors in the vertical state and convey them along a predetermined path. The resistance testing mechanism is arranged on the conveying path of the conveying mechanism and comprises a rotating wheel assembly for clamping the pins of the resistors at the testing station and a resistance testing assembly electrically connected to the pins of the resistors for measuring the resistance value. The capacitor testing mechanism is arranged on the conveying mechanism in a spaced manner along the conveying direction with the resistance testing mechanism and comprises a short-circuiting and discharging assembly for guiding the pins of the capacitors to be close to each other for short-circuiting and discharging and a capacitor testing assembly electrically connected to the discharged pins of the capacitors for measuring the capacitance value. The electrostatic elimination module is arranged on the conveying path downstream of the capacitor testing mechanism and is used to neutralize and discharge the static electricity of the tested resistors or capacitors. The intelligent sorting output module is arranged downstream of the electrostatic elimination module and is used to automatically sort the components to different collection boxes according to the test results.

[0004] Optionally, the turnover mechanism comprises a suction disc assembly, a pushing assembly and a turnover assembly. The turnover assembly comprises a guide plate provided with a guide groove, and the suction disc assembly is installed on a turnover block that can move in the guide groove, so as to complete the turnover during the pushing process.

[0005] Optionally, the guide slot comprises a first horizontal slot, a guide inclined slot and a second horizontal slot, the first horizontal slot and the second horizontal slot are arranged in a vertical direction, the guide inclined slot is located between the first horizontal slot and the second horizontal slot, and the first horizontal slot and the second horizontal slot are communicated through the guide inclined slot, and the turnover block is turned by 90 degrees under the action of the guide inclined slot.

[0006] Optionally, the conveying mechanism comprises a support table and two groups of symmetrical conveying clamping assemblies, each group of clamping assemblies comprises a first conveying belt and a second conveying belt arranged in parallel and spaced apart, and used for clamping a single pin.

[0007] Optionally, the rotating wheel assembly comprises a cam, an oscillating motor driving the cam, and a rotating column; the resistance test assembly comprises a liftable plug-in block; the rotating column is provided with a driving inclined slot, and the plug-in block is provided with a connecting column matched with the driving inclined slot.

[0008] Optionally, the short-circuit discharge assembly comprises a lifting plate with a cross guide slot opened at the top, a screw pair structure driving the lifting plate to lift, and a gear set transmitting the rotation of the rotating column to the screw pair structure.

[0009] Optionally, the support table is provided with a vertical air cylinder, and the vertical air cylinder is used to drive the oscillating motor to lift as a whole, so as to switch the resistance test mode and the capacitance test mode.

[0010] Optionally, the static electricity elimination module is an ion fan.

[0011] Optionally, the intelligent sorting output module comprises a collection box, a flexible clamping jaw air cylinder and a cross linear module, the collection box is located on one side of the static electricity elimination module, the collection box comprises a qualified resistance box, an unqualified resistance box, a qualified capacitance box and an unqualified capacitance box; the flexible clamping jaw air cylinder is installed on the cross linear module, and the cross linear module drives the flexible clamping jaw air cylinder to move the capacitance or resistance whose static electricity is eliminated by the static electricity elimination module to the corresponding collection box.

[0012] Optionally, the intelligent sorting output module further comprises a photoelectric sensor used to trigger a sorting action.

[0013] Compared with the prior art, the beneficial technical effects of the present application are that:

[0014] 1. Full-process automation, efficiency is significantly improved, and full-process automation from disordered feeding, automatic identification and orientation, turnover positioning, automatic testing to classification output is realized, manual operation links are greatly reduced, and it is particularly suitable for rapid testing of batch components.

[0015] 2. High test precision, ensuring consistency during the test process, through mechanical mechanisms to ensure the force and position of the pin clamping and electrical contact during each test, avoiding random errors in manual operation, ensuring the reliability and repeatability of test data, through the design of the lifting swing motor and linkage gear set, a set of drive system can intelligently switch the clamping mode of resistance test and the short-circuit discharge mode of capacitance test, clever structure, cost saving;

[0016] 3. The static electricity elimination module is integrated in the middle of the test process, which can effectively eliminate the static electricity accumulated in the conveying and testing process of the components, prevent potential damage of electrostatic discharge (ESD) to sensitive elements, avoid the interference of static electricity on high-precision testing, and improve the testing safety and accuracy;

[0017] 4. Combined with identification and test results, the device can automatically sort components according to type and qualified state to different collection boxes, not only improving the output efficiency, but also facilitating quality statistics and traceability, providing structured data support for research and analysis. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the overall structure schematic diagram in the embodiment of the present application.

[0019] Figure 2 is the cooperation structure schematic diagram of the conveying mechanism, identification mechanism, rotating mechanism and overturning mechanism in the embodiment of the present application.

[0020] Figure 3 is the cooperation structure schematic diagram of the longitudinal conveying belt and the overturning mechanism in the embodiment of the present application.

[0021] Figure 4 is the exploded view of the overturning mechanism in the embodiment of the present application.

[0022] Figure 5 is the structure schematic diagram of the conveying mechanism, resistance test mechanism and capacitance test mechanism in the embodiment of the present application.

[0023] Figure 6 is the structure schematic diagram of the rotating wheel assembly and the short-circuit discharge assembly in the embodiment of the present application.

[0024] Figure 7 is the exploded structure schematic diagram of the rotating wheel assembly and the plug-in block in the embodiment of the present application.

[0025] Figure 8 is the exploded structure schematic diagram of the short-circuit discharge assembly in the embodiment of the present application.

[0026] Figure 9 is the structure diagram of the conveying mechanism, static electricity elimination module and intelligent sorting output module in the embodiment of the present application.

[0027] Explanation of reference signs: 1, conveying mechanism; 11, transverse conveying belt; 12, longitudinal conveying belt; 13, connecting plate; 14, pushing assembly; 141, push rod; 142, transverse air cylinder; 143, vertical air cylinder; 144, supporting plate; 15, driving air cylinder; 2, identification mechanism; 21, high-definition camera; 22, stand column; 3, rotating mechanism; 31, linkage plate; 32, overhanging plate; 33, rotating motor; 34, first suction cup; 4, overturning mechanism; 41, suction cup assembly; 411, second suction cup; 412, overturning plate; 42, pushing assembly; 421, mounting plate; 422, pushing air cylinder; 43, overturning assembly; 431, guide plate; 4311, guide groove; 4312, first horizontal groove; 4313, guide inclined groove; 4314, second horizontal groove; 432, sliding block; 4321, waist-shaped groove; 433, rotating shaft; 434, overturning block; 435, roller; 5, conveying mechanism; 51, support table; 52, conveying clamping assembly; 53, first conveying belt; 54, second conveying belt; 55, vertical air cylinder; 56, motor plate; 57, damping shaft; 6, resistance testing mechanism; 61, rotating wheel assembly; 62, resistance testing assembly; 63, cam; 64, swing motor; 65, rotating column; 651, driving inclined groove; 66, resistance tester; 67, plug-in block; 671, conductive hole; 68, connecting column; 69, guide rod; 7, capacitance testing mechanism; 71, short-circuit discharge assembly; 72, capacitance testing assembly; 73, lifting plate; 731, cross guide groove; 74, threaded column; 75, rotating sleeve; 76, driving gear; 77, driven gear; 78, directional rod; 79, capacitance tester; 8, electrostatic elimination module; 9, intelligent sorting output module; 91, collection box; 92, flexible clamping cylinder; 93, cross linear module. DETAILED DESCRIPTION

[0028] In order to make the above objectives, characteristics and advantages of the present application more apparent and comprehensible, the following will combine the accompanying drawings to make a further detailed description. Figures 1-9 The present application is further described in detail.

[0029] The present application provides a capacitance and resistance testing device, which refers to Figure 1The capacitor resistance testing device comprises a conveying mechanism 1 for conveying capacitors or resistors, an identification mechanism 2 for identifying the types and directions of the resistors and capacitors, a rotating mechanism 3, a turnover mechanism 4, a conveying mechanism 5, a resistor testing mechanism 6, a capacitor testing mechanism 7, an electrostatic elimination module 8 and an intelligent sorting output module 9. The identification mechanism 2 and the turnover mechanism 4 are both installed on the conveying mechanism 1, and the turnover mechanism 4 is used for adsorbing and turning the horizontally placed resistors or capacitors adjusted by the rotating mechanism 3 to the state of the pins vertically downward. The conveying mechanism 5 is connected downstream of the turnover mechanism 4, used for receiving and clamping the pins of the resistors or capacitors in the vertical state and conveying them along a preset path. The resistor testing mechanism 6 is arranged on the conveying path of the conveying mechanism 5 and comprises a rotating wheel assembly 61 for clamping the resistor pins at a testing station and a resistor testing assembly 62 electrically connected with the resistor pins for measuring the resistance. The capacitor testing mechanism 7 is arranged on the conveying mechanism 5 and spaced apart from the resistor testing mechanism 6 along the conveying direction, and comprises a short-circuit discharge assembly 71 for guiding the capacitor pins to be close to each other for short-circuit discharge and a capacitor testing assembly 72 electrically connected with the capacitor pins after the discharge for measuring the capacitance. The electrostatic elimination module 8 is arranged on the conveying path downstream of the capacitor testing mechanism 7 and used for neutralizing and leading out the static electricity of the tested resistors or capacitors. The intelligent sorting output module 9 is arranged downstream of the electrostatic elimination module 8 and used for automatically sorting the elements according to the test results.

[0030] In the process, the resistors or capacitors are placed horizontally on the conveying mechanism 1; the turnover mechanism 4 turns the horizontally placed resistors or capacitors by 90 degrees to the vertical state, i.e. makes the two pins of the resistors or capacitors vertically downward.

[0031] With reference to Figure 1 With Figure 2 The conveying mechanism 1 comprises a horizontal conveying belt 11, a vertical conveying belt 12 and a connecting plate 13. The horizontal conveying belt 11 is located on one side of the vertical conveying belt 12, and the horizontal conveying belt 11 and the vertical conveying belt 12 are perpendicular to each other, and the resistors or capacitors are conveyed from the horizontal conveying belt 11 to the vertical conveying belt 12. The connecting plate 13 is located between the horizontal conveying belt 11 and the vertical conveying belt 12 and is used for providing support for the resistors or capacitors moving from the horizontal conveying belt 11 to the vertical conveying belt 12, and the connecting plate 13 is welded on the horizontal conveying belt 11.

[0032] With reference to Figure 1 With Figure 2The side wall of the transverse conveying belt 11 is provided with a pushing assembly 14 for pushing the resistance or capacitance on the connecting plate 13 to the longitudinal conveying belt 12. The pushing assembly 14 comprises a pushing rod 141, a transverse cylinder 142 and a vertical cylinder 143. The vertical cylinder 143 is fixedly installed on the side wall of the transverse conveying belt 11, and a supporting plate 144 is installed on the piston rod of the vertical cylinder 143. The transverse cylinder 142 is installed on the supporting plate 144 and moves up and down under the driving of the vertical cylinder 143. The pushing rod 141 is installed on the piston rod of the transverse cylinder 142 and moves in the same direction as the conveying direction of the transverse conveying belt 11.

[0033] When the resistance or capacitance is conveyed from the transverse conveying belt 11 to the connecting plate 13, the vertical cylinder 143 drives the transverse cylinder 142 to rise, so that the pushing rod 141 does not interfere with the movement of the resistance or capacitance. When the resistance or capacitance is pushed from the connecting plate 13 to the longitudinal conveying belt 12, the vertical cylinder 143 drives the transverse cylinder 142 to descend, and the transverse cylinder 142 drives the pushing rod 141 to move.

[0034] Referring to Figure 1 With Figure 2 The identification mechanism 2 comprises a high-definition camera 21 and a stand 22. The stand 22 is located on the side of the transverse conveying belt 11 away from the vertical cylinder 143, and the high-definition camera 21 is installed on the stand 22 and located directly above the connecting plate 13. The high-definition camera 21 takes a photo of the resistance or capacitance on the connecting plate 13 and transmits it to the control system for identification.

[0035] The rotating mechanism 3 comprises a linkage plate 31, an overhanging plate 32, a rotating motor 33 and a first suction cup 34. One side of the linkage plate 31 is fixedly connected with the supporting plate 144, and the other side extends towards the longitudinal conveying belt 12. The overhanging plate 32 is welded to the top of the linkage plate 31 on one side, and extends above the longitudinal conveying belt 12 on the other side. The rotating motor 33 is located above the longitudinal conveying belt 12 and is installed on the overhanging plate 32. The first suction cup 34 is installed on the motor shaft of the rotating motor 33. The first suction cup 34 rises and falls synchronously under the action of the vertical cylinder 143, thereby sucking the resistance or capacitance and rotating it under the action of the rotating motor 33, so that the resistance or capacitance is rotated to the correct and consistent direction.

[0036] Referring to Figure 2 With Figure 3, the turnover mechanism 4 comprises a suction disc assembly 41, a pushing assembly 42 and a turnover assembly 43. The turnover assembly 43 is connected to the longitudinal conveying belt 12, the suction disc assembly 41 is rotatably installed on the turnover assembly 43, and the pushing assembly 42 is installed on the longitudinal conveying belt 12 and pushes the suction disc assembly 41 to move towards the conveying mechanism 5. In the process of movement, the suction disc assembly 41 makes a ninety-degree turnover action under the guidance of the turnover assembly 43.

[0037] The pushing assembly 42 comprises a mounting plate 421 and a pushing cylinder 422. The mounting plate 421 is installed on the side wall of the longitudinal conveying belt 12, and the pushing cylinder 422 is fixedly installed on the mounting plate 421.

[0038] In combination Figure 2 With reference to Figure 3 With Figure 4 , the turnover assembly 43 comprises a guide plate 431 located above the longitudinal conveying belt 12, a sliding block 432 oriented sliding on the guide plate 431, a rotating shaft 433 rotatably installed on the sliding block 432, and a turnover block 434 sleeved on the rotating shaft 433 and slidingly installed on the guide plate 431. The sliding block 432 is hinged to the piston rod of the pushing cylinder 422 through a rotating shaft, so that the sliding block 432 slides along a horizontal direction perpendicular to the conveying direction of the longitudinal conveying belt 12 under the pushing of the pushing cylinder 422. The suction disc assembly 41 is installed on the rotating shaft 433 and rotates synchronously with the rotating shaft 433.

[0039] Specifically, the guide plate 431 is provided with a guide column on which the sliding block 432 is sleeved to realize directional sliding. The side of the guide plate 431 close to the turnover block 434 is provided with a guide groove 4311 for guiding the ninety-degree turnover of the turnover block 434. The side of the turnover block 434 close to the guide plate 431 is fixedly installed with a roller 435 inserted into the guide groove 4311 and moving in the guide groove 4311 under the driving of the sliding block 432.

[0040] With reference to Figure 3 With Figure 4 , the guide groove 4311 comprises a first horizontal groove 4312, a guide inclined groove 4313 and a second horizontal groove 4314. The first horizontal groove 4312 is located on the side of the second horizontal groove 4314 close to the pushing cylinder 422, and the first horizontal groove 4312 and the second horizontal groove 4314 are arranged in a vertical direction. The guide inclined groove 4313 is located between the first horizontal groove 4312 and the second horizontal groove 4314, one end of the guide inclined groove 4313 communicates with the end of the first horizontal groove 4312 close to the second horizontal groove 4314; the other end of the guide inclined groove 4313 communicates with the end of the second horizontal groove 4314 close to the first horizontal groove 4312. When the roller 435 slides in the guide inclined groove 4313, the turnover block 434 will make a ninety-degree turnover under the action of the guide inclined groove 4313.

[0041] in combination with Figure 2 with reference to Figure 3 with Figure 4 The suction cup assembly 41 comprises a second suction cup 411 and a turnover plate 412. The turnover plate 412 is installed on the rotating shaft 433 and rotates synchronously with the rotating shaft 433. The second suction cup 411 is installed on the turnover plate 412. When the roller 435 is located in the first horizontal slot 4312, the second suction cup 411 faces the longitudinal conveying belt 12; when the roller 435 is located in the second horizontal slot 4314, the second suction cup 411 faces the conveying mechanism 5.

[0042] A driving cylinder 15 is installed on the side wall of the longitudinal conveying belt 12 away from the mounting plate 421. The piston rod of the driving cylinder 15 is connected to the bottom of the guide plate 431, so that the driving cylinder 15 can drive the guide plate 431 and the second suction cup 411 to rise or fall. After the second suction cup 411 falls, the resistance or the capacitor can be sucked up, and the resistance or the capacitor after turnover can be inserted into the conveying mechanism 5 for conveying. Correspondingly, a waist-shaped slot 4321 is formed on the sliding block 432, which extends in the vertical direction. The rotating shaft of the sliding cylinder 422 is inserted into the waist-shaped slot 4321.

[0043] with reference to Figure 5 The conveying mechanism 5 comprises a support table 51 and two groups of conveying and clamping assemblies 52 symmetrically installed on the support table 51. The two groups of conveying and clamping assemblies 52 are arranged at intervals along the vertical conveying direction. The two legs of the resistance or the capacitor are clamped and conveyed by the two groups of conveying and clamping assemblies 52.

[0044] The conveying and clamping assembly 52 comprises a first conveying belt 53 and a second conveying belt 54. The first conveying belt 53 and the second conveying belt 54 are both annular conveying belts, and the first conveying belt 53 and the second conveying belt 54 are vertically placed. The first conveying belt 53 and the second conveying belt 54 are arranged at intervals along the vertical conveying direction, so that one of the legs can be inserted into the gap between the first conveying belt 53 and the second conveying belt 54. Since the conveying and clamping assembly 52 is provided in two groups, the two first conveying belts 53 are located between the two second conveying belts 54.

[0045] with reference to Figure 5 with Figure 6 The resistance testing mechanism 6 comprises a rotating wheel assembly 61 installed on the support table 51 to clamp and limit the resistance, and a resistance testing assembly 62 cooperating with the rotating wheel assembly 61 and sliding in the vertical manner to electrically connect or not electrically connect with the two legs of the resistance for testing the resistance.

[0046] The rotating wheel assembly 61 is provided with two groups, and the two groups of rotating wheel assemblies 61 are symmetrically arranged and cooperated with two second conveying belts 54 respectively. The rotating wheel assembly 61 comprises a cam 63, an oscillating motor 64 and a rotating column 65. The oscillating motor 64 is located below the second conveying belt 54, the rotating column 65 is connected with a motor shaft of the oscillating motor 64, and then the rotating column 65 can reciprocating rotate under the action of the oscillating motor 64. The cam 63 is sleeved on the rotating column 65 and synchronously rotates with the rotating column 65. The cam 63 is located inside the second conveying belt 54 and on the side of the second conveying belt 54 away from the first conveying belt 53. When the cam 63 rotates and the convex part abuts against the second conveying belt 54, the second conveying belt 54 moves to the direction close to the first conveying belt 53 to clamp and limit the legs of the resistor or capacitor.

[0047] With reference to Figure 5 With reference to Figure 6 The resistor testing assembly 62 comprises a resistor tester 66 installed on the support table 51 and a plug-in block 67 slidably installed below the conveying and clamping assembly 52 and enabling the two legs of the resistor to be inserted. The plug-in block 67 is electrically connected with the resistor tester 66, and the plug-in block 67 is provided with conductive holes 671 for the legs to be inserted. After the legs of the resistor are inserted into the conductive holes 671, the resistor tester 66 can measure the resistance value of the resistor, so as to know whether the resistance value of the measured resistor is qualified.

[0048] With reference to Figure 6 With reference to Figure 7 The outer peripheral wall of the rotating column 65 is provided with a driving inclined groove 651 for driving the plug-in block 67 to ascend and descend. The driving inclined groove 651 is in a spiral shape, that is, the driving inclined groove 651 extends upward along the circumference of the rotating column 65. The outer wall of the plug-in block 67 is welded with a connecting column 68 which is inserted into the driving inclined groove 651 and can slide in the driving inclined groove 651. The support table 51 is fixedly installed with a guide rod 69 which passes through the plug-in block 67 and guides the ascending and descending of the plug-in block 67. Therefore, after the rotating column 65 rotates, the plug-in block 67 is driven to ascend and descend in a direction by the connecting column 68 and the driving inclined groove 651.

[0049] With reference to Figure 5 With reference to Figure 6 With reference to Figure 7 When the cam 63 rotates to drive the first conveying belt 53 and the second conveying belt 54 to clamp the legs, the conveying and clamping assembly 52 will temporarily stop running, and at the same time, the plug-in block 67 ascends so that the legs can be inserted into the conductive holes 671.

[0050] The capacitor testing mechanism 7 and the resistance testing mechanism 6 are arranged along the conveying direction of the conveying and clamping assembly 52. The capacitor testing mechanism 7 comprises a short-circuit discharging assembly 71 for short-circuit discharging the two branches of the capacitor by moving the two branches of the capacitor close to each other and a capacitor testing assembly 72 for testing the capacitor by electrically connecting or not electrically connecting the two branches of the capacitor. The capacitor is first subjected to the short-circuit discharging and then is tested, because the capacitor needs to be subjected to the short-circuit discharging before the capacitor is tested, otherwise the testing instrument will be damaged.

[0051] In combination Figure 6 With reference to Figure 7 With Figure 8 The short-circuit discharging assembly 71 comprises a lifting plate 73, a screw pair structure for driving the lifting plate 73 to lift and a gear set for transmitting the rotation of the rotating column 65 to the screw pair structure. The screw pair structure comprises a threaded column 74 and a rotating sleeve 75. The gear set comprises a driving gear 76 and a driven gear 77. The rotating sleeve 75 is rotatably arranged on the support table 51. The threaded column 74 is inserted into the rotating sleeve 75 and is threadedly connected with the rotating sleeve 75. The lifting plate 73 is fixedly arranged on the top of the threaded column 74. The driving gear 76 is arranged on the rotating column 65 and rotates synchronously with the rotating column 65. The driven gear 77 is sleeved and fixed on the rotating sleeve. The driven gear 77 can mesh with the driving gear 76. The support table 51 is fixed with a directional rod 78 for orienting the lifting plate 73 to prevent the lifting plate 73 from rotating. When the driving gear 76 rotates, the rotating sleeve rotates, the threaded column 74 is driven to rotate out of the rotating sleeve 75 and to lift up under the action of the directional rod 78, thereby driving the lifting plate 73 to lift up.

[0052] In combination Figure 6 With reference to Figure 7 With Figure 8 The top of the lifting plate 73 is provided with a cross-directional groove 731 for guiding the two branches of the capacitor to move close to each other to realize the short-circuit discharging. The cross-directional groove 731 is an X-shaped groove. When the two branches of the capacitor enter the cross-directional groove 731, the two branches will move close to each other. When the two branches reach the intersection, the two branches abut against each other to realize the short-circuit discharging. Then, the two branches move away from each other under the guidance of the cross-directional groove 731.

[0053] The support table 51 is provided with a vertical cylinder 55 for driving the swing motor 64 to lift. The piston rod of the vertical cylinder 55 is provided with a motor plate 56, and the two swing motors 64 are arranged on the motor plate 56. The guide rod 69 is arranged through the motor plate 56 and away from the support table 51. When testing the resistance, the vertical cylinder 55 drives the swing motor 64 to lift, so that the driving gear 76 and the driven gear 77 are disengaged and arranged in an up-down interval, the cam 63 is arranged inside the second conveying belt 54, and the lifting plate 73 does not interfere with the foot of the resistance. When testing the capacitance, the vertical cylinder 55 drives the swing motor 64 to descend, so that the driving gear 76 and the driven gear 77 are engaged with each other, the cam 63 is arranged below the outside of the second conveying belt 54 and does not drive the second conveying belt 54 to move, and the plug-in block 67 does not interfere with the foot of the capacitance.

[0054] In combination Figure 6 With reference to Figures 7 to 9 The support table 51 is provided with a damping shaft 57, and the rotating sleeve 75 is sleeved on the damping shaft 57. Further, the rotating sleeve 75 does not rotate when subjected to a force smaller than the damping force of the damping shaft 57. Further, the driving gear 76 can be more accurately engaged with the driven gear 77 after descending.

[0055] The capacitance testing assembly 72 comprises a capacitance tester 79 arranged on the support table 51. The position of the capacitance tester 79 is also provided with two sets of rotating wheel assemblies 61 for driving the two second conveying belts 54 to move and clamp the foot of the capacitance. At the same time, the two sets of rotating wheel assemblies 61 are also provided with a plug-in block 67 arranged therebetween, so as to facilitate the testing of the value of the capacitance.

[0056] The electrostatic elimination module 8 is arranged on the support table 51 and below the first conveying belt 53 and the second conveying belt 54, i.e., below the foot of the capacitance or the resistance. The element to be tested continues to move with the clamping assembly 52, and first passes through the electrostatic elimination module 8. In the embodiment, the electrostatic elimination module 8 is preferably an ion fan. The ion fan blows ion wind to the pin area of the element to neutralize static electricity and effectively eliminate static electricity.

[0057] With reference to Figure 1 With Figure 9After the static electricity is eliminated, the component reaches the intelligent sorting output module 9. The intelligent sorting output module 9 includes a collection box 91, a flexible gripper cylinder 92, and a cross linear module 93. The collection box 91 is located on one side of the static electricity elimination module 8 and is installed on the support table 51. The collection box 91 includes spaced-apart qualified resistor boxes, unqualified resistor boxes, qualified capacitor boxes, and unqualified capacitor boxes. The flexible gripper cylinder 92 is located above the second transmission belt 52 to clamp and convey the component. The flexible gripper cylinder 92 is installed on the sliding part of the cross linear module 93 (prior art, with a sliding part that can move the component in the vertical and horizontal directions). The cross linear module 93 is installed on the support table 51 to drive the flexible gripper cylinder 92 to move the capacitor or resistor that has eliminated static electricity in the static electricity elimination module 8 into the corresponding collection box 91 for collection. The gripper of the flexible gripper cylinder 92 is made of elastic material (such as a rubber gripper), which can ensure clamping effect and not damage the component when clamping the component.

[0058] Optionally, the intelligent sorting output module 9 also includes a photoelectric sensor. When the photoelectric sensor detects that the component is in place, the control system triggers the cross linear module 93 to drive the flexible gripper cylinder 92 to act, clamps the component, and moves it into the corresponding collection box 91, such as a qualified resistor box, an unqualified capacitor box, etc.

[0059] The implementation principle of the capacitor and resistor testing device according to an embodiment of the application is that the resistor or capacitor is conveyed from the horizontal conveying belt 11 to the connecting plate 13. The high-definition camera 21 takes a picture of the resistor or capacitor on the connecting plate 13 and transmits it to the control system for identification. Then the horizontal cylinder 142 pushes the resistor or capacitor on the connecting plate 13 to the vertical conveying belt 12.

[0060] When the resistor or capacitor moves below the first suction cup 34, the first suction cup 34 is lowered to suck it up. The rotating motor 33 rotates the resistor or capacitor to a consistent direction. The turnover mechanism 4 sucks and turns the resistor or capacitor lying on the conveying mechanism 1 to a vertical state, i.e., makes the two legs face downward and places them on the conveying mechanism 5. Then the resistor is tested by the resistor testing mechanism 6 or the capacitor is tested by the capacitor testing mechanism 7.

[0061] When testing the resistance, the convex part of the cam 63 at the position of the resistance tester 66 abuts against the second conveying belt 54, the second conveying belt 54 moves to the direction close to the first conveying belt 53 to clamp and limit the legs of the resistance, at this time the control system controls the conveying and clamping assembly 52 to temporarily stop running. At the same time, the plug-in block 67 is lifted under the action of the connecting column 68 and the driving chute 651, so that the two legs of the resistance are inserted into the conductive hole 671, the resistance and the plug-in block 67 are electrically connected, and then the resistance tester 66 tests the resistance value of the measured resistance. It should be pointed out that at this time the vertical cylinder 55 drives the swing motor 64 to rise, at this time the driving gear 76 and the driven gear 77 are disengaged and arranged in an up-down interval state, and the cam 63 is located inside the second conveying belt 54, and the lifting plate 73 does not interfere with the legs of the resistance.

[0062] When testing the resistance, the convex part of the cam 63 at the position of the resistance tester 66 abuts against the second conveying belt 54, the second conveying belt 54 moves to the direction close to the first conveying belt 53 to clamp and limit the legs of the resistance, at this time the control system controls the conveying and clamping assembly 52 to temporarily stop running. At the same time, the plug-in block 67 is lifted under the action of the connecting column 68 and the driving chute 651, so that the two legs of the resistance are inserted into the conductive hole 671, the resistance and the plug-in block 67 are electrically connected, and then the resistance tester 66 tests the resistance value of the measured resistance. It should be pointed out that at this time the vertical cylinder 55 drives the swing motor 64 to rise, at this time the driving gear 76 and the driven gear 77 are disengaged and arranged in an up-down interval state, and the cam 63 is located inside the second conveying belt 54, and the lifting plate 73 does not interfere with the legs of the resistance.

[0063] The element that completes the test continues to move, first passes through the static electricity elimination module 8, the static electricity elimination module 8 blows ion wind to neutralize static electricity to the element pin area, eliminates static electricity, and then the intelligent sorting output module 9 pushes the element into the corresponding collection groove 91 for collection.

[0064] The above embodiments only express several embodiments of the present disclosure, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the invention patent. It should be pointed out that for ordinary skilled in the art, without departing from the inventive concept of the present disclosure, a number of modifications and improvements can be made, which belong to the protection scope of the present disclosure.

Claims

1. A capacitance and resistance testing device, characterized in that: The system includes a conveying mechanism (1) for transporting capacitors or resistors, an identification mechanism (2) for identifying the type and orientation of resistors and capacitors, a rotating mechanism (3), a flipping mechanism (4), a conveying mechanism (5), a resistance testing mechanism (6), a capacitance testing mechanism (7), an electrostatic elimination module (8), and an intelligent sorting output module (9). The identification mechanism (2) and the flipping mechanism (4) are both installed on the conveying mechanism (1). The flipping mechanism (4) is used to attract and flip the horizontally placed resistors or capacitors, which have been adjusted by the rotating mechanism (3), to a position where the pins are vertically downward. The conveying mechanism (5) is connected downstream of the flipping mechanism (4) and is used to receive and clamp the pins of the vertically positioned resistors or capacitors and transport them along a preset path. The resistance testing mechanism (6) and the capacitance testing mechanism (7) are connected to the flipping mechanism (8). The test mechanism (7) is spaced along the conveying path of the conveying mechanism (5). The resistance test mechanism (6) includes a rotating wheel assembly (61) for clamping the resistance pins at the test station and a resistance test assembly (62) electrically connected to the resistance pins to measure the resistance value. The capacitance test mechanism (7) includes a short-circuit discharge assembly (71) for guiding the capacitance pins to short-circuit and discharge each other and a capacitance test assembly (72) electrically connected to the discharged capacitance pins to measure the capacitance value. The electrostatic elimination module (8) is located downstream of the capacitance test mechanism (7) and is used to neutralize and discharge the electrostatics of the tested resistors or capacitors. The intelligent sorting output module (9) is located downstream of the electrostatic elimination module (8) and is used to automatically sort the components to different collection boxes according to the test results.

2. The capacitance and resistance testing device according to claim 1, characterized in that: The flipping mechanism (4) includes a suction cup assembly (41), a pushing assembly (42) and a flipping assembly (43); the flipping assembly (43) includes a guide plate (431) with a guide groove (4311), and the suction cup assembly (41) is mounted on a flipping block (434) that can move in the guide groove (4311), thereby completing the flipping during the pushing process.

3. The capacitance and resistance testing device according to claim 2, characterized in that: The guide groove (4311) includes a first horizontal groove (4312), a guide inclined groove (4313), and a second horizontal groove (4314). The first horizontal groove (4312) and the second horizontal groove (4314) are arranged at intervals along the vertical direction. The guide inclined groove (4313) is located between the first horizontal groove (4312) and the second horizontal groove (4314), and the first horizontal groove (4312) and the second horizontal groove (4314) are connected through the guide inclined groove (4313). The flipping block (434) realizes the function of flipping ninety degrees under the action of the guide inclined groove (4313).

4. The capacitance and resistance testing device according to claim 1, characterized in that: The conveying mechanism (5) includes a support platform (51) and two sets of symmetrical conveying clamping assemblies (52). Each set of clamping assemblies (52) includes a first conveyor belt (53) and a second conveyor belt (54) arranged in parallel intervals for clamping a single pin.

5. The capacitance and resistance testing device according to claim 4, characterized in that: The rotating wheel assembly (61) includes a cam (63), a swing motor (64) that drives the cam, and a rotating column (65); the resistance testing assembly (62) includes a liftable plug-in block (67); the rotating column (65) has a drive groove (651) on its surface, and the plug-in block (67) has a connecting column (68) that cooperates with the drive groove (651).

6. The capacitance and resistance testing device according to claim 5, characterized in that: The short-circuit discharge assembly (71) includes a lifting plate (73) with a cross guide groove (731) on the top, a threaded pair structure for driving the lifting plate (73) to rise and fall, and a gear set for transmitting the rotation of the rotating column (65) to the threaded pair structure.

7. The capacitance and resistance testing device according to claim 6, characterized in that: The support platform (51) is equipped with a vertical cylinder (55), which is used to drive the swing motor (64) to lift and lower as a whole, so as to switch the resistance test mode and the capacitance test mode.

8. The capacitance and resistance testing device according to claim 1, characterized in that: The static elimination module (8) is an ion fan.

9. The capacitance and resistance testing device according to claim 1, characterized in that: The intelligent sorting output module (9) includes a collection box (91), a flexible gripper cylinder (92), and a cross-shaped linear module (93). The collection box (91) is located on one side of the static elimination module (8). The collection box (91) includes qualified resistor boxes, unqualified resistor boxes, qualified capacitor boxes, and unqualified capacitor boxes. The flexible gripper cylinder (92) is installed on the cross-shaped linear module (93), and the cross-shaped linear module (93) drives the flexible gripper cylinder (92) to transfer the capacitor or resistor that has been eliminated by the static elimination module (8) to the corresponding collection box (91).

10. The capacitance and resistance testing device according to claim 1, characterized in that: The intelligent sorting output module (9) also includes a photoelectric sensor for triggering sorting actions.

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