Windscreen wiper connecting plate and step pin assembly detection automation system

Abstract

The invention relates to an automatic assembly and detection system for a windscreen wiper connecting plate and a step pin, which can efficiently and orderly complete riveting and automatic feeding and assembly of the windscreen wiper connecting plate and the step pin, and can detect whether the front and back surfaces of the connecting plate are correct or not when the connecting plate is fed. If not, a pause system manually confirms the placing direction of the connecting plate in the cartridge holder, if yes, the next step is continued, whether the connecting plate and the step pin are installed in place or not is detected, if yes, riveting, finished product detection and discharging are normally conducted subsequently, and if not, riveting, finished product detection and discharging are paused; the connecting plate and the step pin which are not installed in place can be recycled through the pre-riveting unqualified part connecting plate discharging mechanism and the pre-riveting unqualified part step pin discharging mechanism, the whole process is automatic, all procedures are reasonable and orderly, multiple times of detection are conducted before riveting and after riveting, the waste probability can be reduced, the part utilization rate can be increased, efficiency is high, precision is high, and the product quality is improved. And the labor cost is reduced.

Description

Technical Field

[0001] The present invention relates to the field of automotive parts assembly, and particularly to an automatic assembly detection system for a wiper connecting plate and a stepped pin. Background Art

[0002] Currently, the measurement and assembly of the wiper connecting plate and the stepped pin are generally carried out manually. Manual inspection is used, and the judgment of unqualified products is not intuitive enough, the accuracy is not high, and it is easy to get tired after long-term operation. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an automatic assembly detection system for a wiper connecting plate and a stepped pin that is convenient and has high accuracy in view of the above deficiencies.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions:

[0005] An automatic assembly detection system for a wiper connecting plate and a stepped pin, including a turntable. Along the rotation direction on the outer periphery of the turntable, a stepped pin feeding mechanism, a connecting plate feeding mechanism, a pre-riveting detection mechanism, a riveting mechanism, a height detection mechanism, a finished product discharging mechanism, a connecting plate discharging mechanism for unqualified parts in pre-riveting inspection and a stepped pin discharging mechanism for unqualified parts in pre-riveting inspection are sequentially arranged; on the inner side of the edge of the upper surface of the turntable, a plurality of jigs are evenly arranged. On the jigs, a stepped pin positioning block and a connecting plate placing groove are arranged corresponding to the assembly positions of the stepped pin and the connecting plate. The turntable is used to drive the jigs to pass through the stepped pin feeding mechanism, the connecting plate feeding mechanism, the pre-riveting detection mechanism, the riveting mechanism, the height detection mechanism, the finished product discharging mechanism, the connecting plate discharging mechanism for unqualified parts in pre-riveting inspection and the stepped pin discharging mechanism for unqualified parts in pre-riveting inspection at a constant speed in sequence and stay directly below / directly in front of these mechanisms for a preset time;

[0006] The stepped pin feeding mechanism is used to convey a stepped pin to the stepped pin positioning block of the jig on the turntable directly in front every preset time through a hollow air pipe;

[0007] The connecting plate feeding mechanism is used to clamp a connecting plate into the connecting plate placing groove of the jig on the turntable directly below every preset time;

[0008] The pre-riveting detection mechanism is used to detect whether the connecting plate and the stepped pin are both placed in place by detecting the relative height between the connecting plate and the stepped pin. If they are placed in place, the riveting mechanism, the height detection mechanism and the finished product discharging mechanism work normally, and the connecting plate discharging mechanism for unqualified parts in pre-riveting inspection and the stepped pin discharging mechanism for unqualified parts in pre-riveting inspection both pause once; if they are not placed in place, the riveting mechanism, the height detection mechanism and the finished product discharging mechanism all pause once, and the connecting plate discharging mechanism for unqualified parts in pre-riveting inspection and the stepped pin discharging mechanism for unqualified parts in pre-riveting inspection work normally;

[0009] The riveting mechanism is used to rivet the connecting plate and the stepped pin to obtain the finished product;

[0010] The height detection mechanism is used to detect the height of the stepped pin on the finished product and determine whether the riveting is qualified;

[0011] The finished product discharging mechanism is used to clamp and place the qualified finished products into the qualified box, and clamp and place the unqualified finished products into the waste box;

[0012] The connecting plate discharging mechanism for unqualified parts before riveting inspection is used to clamp the connecting plate on the fixture into the connecting plate collection box, and the stepped pin discharging mechanism for unqualified parts before riveting inspection is used to clamp the remaining stepped pins on the fixture into the stepped pin collection box.

[0013] Further, the stepped pin feeding mechanism includes a sorting table, a connecting channel, a translation mechanism, a hollow air pipe and an air pump. The sorting table is used to convey the stepped pins in a single row in a fixed direction through the sorting table into the connecting channel. A translation block is arranged at the front end of the connecting channel, and a stepped pin placement groove is arranged on the translation block. The translation mechanism is used to drive the translation block to reciprocate between the front end of the connecting channel and the inlet end of the hollow air pipe, and sequentially convey the stepped pin at the forefront of the connecting channel to the inlet end of the hollow air pipe one by one. The air pump is used to convey the stepped pins at the inlet end through the hollow air pipe to the stepped pin positioning block on the fixture on the front turntable one by one.

[0014] Further, the connecting plate feeding mechanism includes a magazine loading rack, a first pushing mechanism, a connecting plate detection mechanism, a second pushing mechanism and a clamping mechanism. The magazine loading rack is used to stack and place the connecting plates. The detection position is directly below the connecting plate detection mechanism. The first pushing mechanism is used to push the lowermost connecting plate on the magazine loading rack to the detection position. The connecting plate detection mechanism is used to judge whether the detection head can pass through the eccentric hole by detecting the height at the eccentric hole in the center of the connecting plate. If it can pass through, it is judged that the front and back sides of the connecting plate are correctly installed. If it cannot pass through, it is judged that the front and back sides of the connecting plate are incorrectly installed, and an alarm is given and the entire system is paused. The second pushing mechanism is used to push the detected connecting plate at the detection position to directly below the clamping mechanism. The clamping mechanism is used to clamp the connecting plate directly below into the connecting plate placement groove on the fixture on the turntable.

[0015] Further, a pressing mechanism is arranged below the riveting mechanism. The pressing mechanism is used to press the connecting plate on the fixture during riveting.

[0016] The beneficial effects of the present invention are as follows: The present invention can efficiently and orderly complete the automatic feeding and assembly of the wiper connecting plate and the stepped pin. Moreover, it can detect whether the front and back sides of the connecting plate are correct when feeding the connecting plate. If not, the system will pause and the operator needs to confirm the placement direction of the connecting plate in the magazine manually. If correct, the next step will be continued. It will detect whether the connecting plate and the stepped pin are properly installed in the fixture. If they are in place, the subsequent riveting, finished product inspection, and blanking will proceed normally. If not, the riveting, finished product inspection, and blanking will be paused. The feeding mechanism for the connecting plate with unqualified parts before riveting inspection and the feeding mechanism for the stepped pin with unqualified parts before riveting inspection can recycle the connecting plates and stepped pins that are not properly installed. The present invention is fully automated, with each process being reasonable and orderly. There are multiple inspections before and after riveting, which can reduce the probability of defective products, improve the utilization rate of parts, and has high efficiency and high precision, reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall schematic diagram of one angle of the present invention;

[0018] Figure 2 is the overall schematic diagram of another angle of the present invention;

[0019] Figure 3 is the structural schematic diagram of the stepped pin feeding mechanism;

[0020] Figure 4 is the structural schematic diagram of the connecting plate feeding mechanism;

[0021] Figure 5 is the structural schematic diagram of the assembled finished product.

[0022] In the drawings, the list of components represented by each reference numeral is as follows:

[0023] 1, turntable; 2, stepped pin feeding mechanism; 3, connecting plate feeding mechanism; 4, pre-riveting inspection mechanism; 5, riveting mechanism; 6, height detection mechanism; 7, finished product blanking mechanism; 8, feeding mechanism for connecting plate with unqualified parts before riveting inspection; 9, feeding mechanism for stepped pin with unqualified parts before riveting inspection; 10, pressing mechanism; 21, sorting table; 22, connecting channel; 23, translation mechanism; 31, magazine loading rack; 32, first pushing mechanism; 33, connecting plate detection mechanism; 34, second pushing mechanism; 35, clamping mechanism. DETAILED DESCRIPTION OF THE INVENTION

[0024] The principles and features of the present invention will be described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0025] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0026] As Figures 1-5 shown, an automatic detection system for assembling a wiper connecting plate and a stepped pin includes a turntable 1. Along the circumferential direction of the turntable 1 in the rotation direction, a stepped pin feeding mechanism 2, a connecting plate feeding mechanism 3, a pre-riveting detection mechanism 4, a riveting mechanism 5, a height detection mechanism 6, a finished product discharging mechanism 7, a connecting plate discharging mechanism 8 for unqualified parts before pre-riveting inspection, and a stepped pin discharging mechanism 9 for unqualified parts before pre-riveting inspection are sequentially arranged. On the inner side of the edge of the upper surface of the turntable 1, a plurality of jigs are evenly arranged. On the jigs, a stepped pin positioning block and a connecting plate placing groove are arranged corresponding to the assembly positions of the stepped pin and the connecting plate. The turntable 1 is used to drive the jigs to pass through the stepped pin feeding mechanism 2, the connecting plate feeding mechanism 3, the pre-riveting detection mechanism 4, the riveting mechanism 5, the height detection mechanism 6, the finished product discharging mechanism 7, the connecting plate discharging mechanism 8 for unqualified parts before pre-riveting inspection, and the stepped pin discharging mechanism 9 for unqualified parts before pre-riveting inspection at a constant speed and stay directly below / directly in front of these mechanisms for a preset time.

[0027] The stepped pin feeding mechanism 2 is used to convey a stepped pin to the stepped pin positioning block of the jig on the turntable 1 directly in front through a hollow air pipe every preset time.

[0028] The connecting plate feeding mechanism 3 is used to clamp a connecting plate into the connecting plate placing groove of the jig on the turntable 1 directly below every preset time.

[0029] The pre-riveting detection mechanism 4 is used to detect whether the connecting plate and the stepped pin are both placed in place by detecting the relative height between the connecting plate and the stepped pin. If they are placed in place, the riveting mechanism 5, the height detection mechanism 6, and the finished product discharging mechanism 7 work normally, and the connecting plate discharging mechanism 8 for unqualified parts before pre-riveting inspection and the stepped pin discharging mechanism 9 for unqualified parts before pre-riveting inspection both pause once. If they are not placed in place, the riveting mechanism 5, the height detection mechanism 6, and the finished product discharging mechanism 7 all pause once, and the connecting plate discharging mechanism 8 for unqualified parts before pre-riveting inspection and the stepped pin discharging mechanism 9 for unqualified parts before pre-riveting inspection work normally.

[0030] The riveting mechanism 5 is used to rivet the connecting plate and the stepped pin to obtain a finished product.

[0031] The height detection mechanism 6 is used to detect the height of the stepped pin on the finished product and judge whether the riveting is qualified.

[0032] The finished product blanking mechanism 7 is used to clamp and place the qualified finished products detected by height into the qualified box, and clamp and place the unqualified finished products detected by height into the waste box;

[0033] The unqualified part connecting plate blanking mechanism 8 before riveting inspection is used to clamp the connecting plate on the fixture into the connecting plate collection box, and the unqualified part step pin blanking mechanism 9 before riveting inspection is used to clamp the remaining step pins on the fixture into the step pin collection box.

[0034] As an implementation manner, the step pin feeding mechanism 2 includes a sorting table 21, a connecting channel 22, a translation mechanism 23, a hollow air pipe and an air pump. The sorting table 21 is used to convey the step pins in a single row in a fixed direction through the sorting table 21 into the connecting channel 22. A translation block is provided at the front end of the connecting channel 22, and a step pin placement groove is provided on the translation block. The translation mechanism 23 is used to drive the translation block to reciprocate between the front end of the connecting channel 22 and the inlet end of the hollow air pipe, and sequentially convey the step pin at the forefront of the connecting channel 22 to the inlet end of the hollow air pipe one by one. The air pump is used to sequentially convey the step pins at the inlet end to the step pin positioning block of the fixture on the front turntable 1 through the hollow air pipe one by one.

[0035] As an implementation manner, the connecting plate feeding mechanism 3 includes a magazine feeding rack 31, a first pushing mechanism 32, a connecting plate detection mechanism 33, a second pushing mechanism 34 and a clamping mechanism 35. The magazine feeding rack 31 is used to stack and place the connecting plates. The detection position is directly below the connecting plate detection mechanism 33. The first pushing mechanism 32 is used to push the connecting plate at the bottom of the magazine feeding rack 31 to the detection position. The connecting plate detection mechanism 33 is used to judge whether the detection head can pass through the eccentric hole by detecting the height at the eccentric hole in the center of the connecting plate. If it can pass through, it is judged that the front and back sides of the connecting plate are correctly installed. If it cannot pass through, it is judged that the front and back sides of the connecting plate are incorrectly installed, and an alarm is given and the entire system is paused. The second pushing mechanism 34 is used to push the detected connecting plate at the detection position directly below the clamping mechanism 35. The clamping mechanism 35 is used to clamp the connecting plate directly below into the connecting plate placement groove of the fixture on the turntable 1.

[0036] As an implementation manner, a pressing mechanism 10 is provided below the riveting mechanism 5. The pressing mechanism 10 is used to press the connecting plate on the fixture during riveting.

[0037] The working process of the present invention is as follows:

[0038] The step pin feeding mechanism 2 conveys a step pin to the step pin positioning block of the fixture on the front turntable through the hollow air pipe every preset time; the turntable rotates, driving all the fixtures to move one station;

[0039] The connecting plate feeding mechanism 3 clamps a connecting plate into the connecting plate placement groove of the fixture on the turntable 1 directly below at every preset time, and before clamping, it detects whether the front and back sides of the connecting plate are correctly installed through the connecting plate detection mechanism. If it is judged that the front and back sides of the connecting plate are installed incorrectly, an alarm will be given and the entire system will be paused. If it is correct, the connecting plate will be clamped into the connecting plate placement groove of the fixture on the turntable. The turntable rotates, driving all the fixtures to move one station.

[0040] The pre-riveting detection mechanism 4 detects whether the connecting plate and the stepped pin are both placed in place by detecting the relative height between the connecting plate and the stepped pin. If they are placed in place, the riveting mechanism 5, the height detection mechanism 6, and the finished product discharging mechanism 7 will work normally, and the connecting plate discharging mechanism 8 for unqualified parts in pre-riveting inspection and the stepped pin discharging mechanism 9 for unqualified parts in pre-riveting inspection will both be paused once. If they are not placed in place, the riveting mechanism 5, the height detection mechanism 6, and the finished product discharging mechanism 7 will all be paused once, and the connecting plate discharging mechanism 8 for unqualified parts in pre-riveting inspection and the stepped pin discharging mechanism 9 for unqualified parts in pre-riveting inspection will work normally.

[0041] If they are placed in place, the turntable continues to rotate. After driving all the fixtures to move one station, the riveting mechanism 5 rivets the connecting plate and the stepped pin to obtain a finished product.

[0042] The turntable continues to rotate. After driving all the fixtures to move one station, the height detection mechanism 6 detects the height of the stepped pin on the finished product and judges whether the riveting is qualified.

[0043] The turntable continues to rotate. After driving all the fixtures to move one station, the finished product discharging mechanism 7 clamps and places the finished products with qualified height detection into the qualified box, and clamps and places the finished products with unqualified height detection into the waste box.

[0044] If they are not placed in place, when the connecting plate and the stepped pin that are not placed in place move to the connecting plate discharging mechanism for unqualified parts in pre-riveting inspection after passing through three stations, the connecting plate discharging mechanism 8 for unqualified parts in pre-riveting inspection clamps the connecting plate on the fixture into the connecting plate collection box. The turntable rotates, driving all the fixtures to move one station. The stepped pin discharging mechanism 9 for unqualified parts in pre-riveting inspection is used to clamp the remaining stepped pins on the fixture into the stepped pin collection box.

[0045] The above is an example of the best implementation mode of the present invention. The parts not described in detail are all common general knowledge of those of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims. Any equivalent transformation based on the technical inspiration of the present invention is also within the protection scope of the present invention.

Claims

1. An automatic detection system for assembling a wiper connecting plate and a step pin, characterized in that It includes a turntable. Along the circumferential direction of the turntable in the rotation direction, a stepped pin feeding mechanism, a connecting plate feeding mechanism, a pre-riveting inspection mechanism, a riveting mechanism, a height inspection mechanism, a finished product discharging mechanism, a connecting plate discharging mechanism for unqualified parts before pre-riveting inspection, and a stepped pin discharging mechanism for unqualified parts before pre-riveting inspection are sequentially arranged. On the inner side of the edge of the upper surface of the turntable, a plurality of jigs are evenly arranged. On the jigs, a stepped pin positioning block and a connecting plate placement groove are arranged corresponding to the assembly positions of the stepped pin and the connecting plate. The turntable is used to drive the jigs to sequentially pass through the stepped pin feeding mechanism, the connecting plate feeding mechanism, the pre-riveting inspection mechanism, the riveting mechanism, the height inspection mechanism, the finished product discharging mechanism, the connecting plate discharging mechanism for unqualified parts before pre-riveting inspection, and the stepped pin discharging mechanism for unqualified parts before pre-riveting inspection at a constant speed and stay for a preset time directly below / directly in front of these mechanisms. The stepped pin feeding mechanism is used to convey a stepped pin to the stepped pin positioning block of the jig on the turntable directly in front through a hollow air pipe every preset time. The connecting plate feeding mechanism is used to clamp a connecting plate into the connecting plate placement groove of the jig on the turntable directly below every preset time. The pre-riveting inspection mechanism is used to detect whether the connecting plate and the stepped pin are both placed in place by detecting the relative height between the connecting plate and the stepped pin. If they are placed in place, the riveting mechanism, the height inspection mechanism, and the finished product discharging mechanism work normally, and the connecting plate discharging mechanism for unqualified parts before pre-riveting inspection and the stepped pin discharging mechanism for unqualified parts before pre-riveting inspection both pause once. If they are not placed in place, the riveting mechanism, the height inspection mechanism, and the finished product discharging mechanism all pause once, and the connecting plate discharging mechanism for unqualified parts before pre-riveting inspection and the stepped pin discharging mechanism for unqualified parts before pre-riveting inspection work normally. The riveting mechanism is used to rivet the connecting plate and the stepped pin to obtain a finished product. The height inspection mechanism is used to detect the height of the stepped pin on the finished product and judge whether the riveting is qualified. The finished product discharging mechanism is used to clamp and place the qualified finished products into the qualified box and clamp and place the unqualified finished products into the waste box. The connecting plate discharging mechanism for unqualified parts before pre-riveting inspection is used to clamp the connecting plate on the jig into the connecting plate collection box, and the stepped pin discharging mechanism for unqualified parts before pre-riveting inspection is used to clamp the remaining stepped pins on the jig into the stepped pin collection box.

2. The automated inspection system for assembling the wiper connecting plate and the stepped pin according to claim 1, wherein The stepped pin feeding mechanism includes a sorting table, a connecting channel, a translation mechanism, a hollow air pipe, and an air pump. The sorting table is used to convey the stepped pins in a single row in a fixed direction into the connecting channel through the sorting table. A translation block is arranged at the front end of the connecting channel, and a stepped pin placement groove is arranged on the translation block. The translation mechanism is used to drive the translation block to reciprocate between the front end of the connecting channel and the inlet end of the hollow air pipe, and sequentially convey the stepped pin at the forefront of the connecting channel to the inlet end of the hollow air pipe one by one. The air pump is used to sequentially convey the stepped pins at the inlet end through the hollow air pipe to the stepped pin positioning block of the jig on the turntable directly in front.

3. The automated assembly detection system for the windshield wiper connecting plate and the stepped pin according to claim 1, characterized in that The connecting plate loading mechanism includes a magazine loading rack, a first pushing mechanism, a connecting plate detection mechanism, a second pushing mechanism, and a clamping mechanism. The magazine loading rack is used for stacking and placing connecting plates. The detection position is directly below the connecting plate detection mechanism. The first pushing mechanism is used to push the connecting plate at the bottom of the magazine loading rack to the detection position. The connecting plate detection mechanism is used to judge whether the detection head can pass through the eccentric hole by detecting the height at the center of the eccentric hole of the connecting plate. If it can pass through, it is judged that the front and back sides of the connecting plate are correctly installed. If it cannot pass through, it is judged that the front and back sides of the connecting plate are incorrectly installed, and an alarm is given and the entire system is paused. The second pushing mechanism is used to push the detected connecting plate at the detection position to directly below the clamping mechanism. The clamping mechanism is used to clamp the connecting plate directly below into the connecting plate placement groove on the fixture on the turntable.

4. The automated detection system for assembling the wiper connecting plate and the stepped pin according to claim 1, wherein A pressing mechanism is arranged below the riveting mechanism. The pressing mechanism is used to press the connecting plate on the fixture during riveting.

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