Automatic assembly and detection equipment for overflow valve

Abstract

The utility model discloses automatic assembly and detection equipment for an overflow valve. The automatic assembly and detection equipment comprises a rack, a feeding mechanism, a spring feeding mechanism, a detection mechanism and a screening mechanism, a turntable mechanism is arranged in the middle of the upper surface of the rack; the three sets of feeding mechanisms are arranged on the upper surface of the rack and located on the edges of the rotary disc mechanism correspondingly; the spring feeding mechanism comprises a tray assembly, a linear module, a second two-axis module and a spring grabbing assembly, the overflow valve automatic assembly detection equipment achieves automatic assembly of overflow valves and similar products, manpower is saved, the efficiency is improved, the production cost is reduced, meanwhile, through the design of customized blister trays, transportation and storage of springs are facilitated, and the production efficiency is improved. And the problems of material distribution, positioning and material supply during spring automation are solved, automatic detection is carried out, unqualified products are removed, and the percent of pass of the products leaving the factory or transferred to the next procedure is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of overcurrent valve manufacturing, in particular to an automatic assembly and detection device for an overcurrent valve. Background Technique

[0002] The overcurrent valve is also called a throttle valve, which is a valve that controls the fluid flow by changing the throttle section or throttle length. Combining a throttle valve and a check valve in parallel can form a one-way throttle valve. The throttle valve and the one-way throttle valve are simple flow control valves.

[0003] There is no automated solution in the overcurrent valve industry. All are manually assembled, which is not only laborious but also inefficient. There is no reliable detection method for whether the overcurrent valve is qualified, resulting in uncontrollable product quality. Moreover, the current labor cost is high and it is difficult to recruit workers. At the same time, the spring wire diameter of the overcurrent valve on the self-closing valve and pressure regulator is less than 1 mm, which is thin and soft. After being twisted together, it is very difficult to separate. The transportation and storage of the spring are very troublesome, and there is no detection for whether the product is qualified. Only when the overcurrent valve is installed in the self-closing valve or pressure regulator and the whole machine is detected can unqualified products be found, resulting in high waste of manpower and material resources. Therefore, we propose an automatic assembly and detection device for an overcurrent valve. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects, provide an automatic assembly and detection device for an overcurrent valve, realize the automatic assembly of the overcurrent valve and similar products, save labor, improve efficiency, reduce production costs. At the same time, through the design of a customized plastic suction tray, it is convenient for the transportation and storage of the spring, and solves the problems of material separation, positioning, and feeding during spring automation. Moreover, it automatically detects and rejects unqualified products, improving the pass rate of products when leaving the factory or being transferred to the next process, and can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an automatic assembly and detection device for an overcurrent valve, including a frame, a feeding mechanism, a spring feeding mechanism, a detection mechanism, and a screening mechanism;

[0006] Frame: A turntable mechanism is arranged in the middle of its upper surface;

[0007] Feeding mechanism: There are three groups in total. The feeding mechanisms are all arranged on the upper surface of the frame and are respectively located at the edges of the turntable mechanism;

[0008] Spring feeding mechanism: It includes a tray assembly, a linear module, a two-axis module two, and a spring grasping component. The linear module and the two-axis module two are arranged at the rear side of the upper surface of the frame. The tray assembly is placed on the upper surface of the sliding table of the linear module. The lower end of the sliding table of the two-axis module two is provided with a spring grasping component. The linear sliding table of the two-axis module two is located above the turntable mechanism;

[0009] Detection mechanism: It is arranged on the upper surface of the frame and the upper end of the turntable mechanism;

[0010] Screening mechanism: It is arranged on the upper surface and inside of the frame, realizing the automatic assembly of overcurrent valves and similar products, saving labor, improving efficiency, reducing production costs. At the same time, through the design of customized plastic trays, it facilitates the transportation and storage of springs, and also solves the problems of material separation, positioning, and feeding during spring automation. Moreover, it automatically detects and rejects unqualified products, improving the pass rate of products when leaving the factory or being transferred to the next process.

[0011] Furthermore, it also includes a bracket. The bracket is fixedly connected to the upper surface of the frame. The upper end of the bracket is provided with a controller. The input end of the controller is electrically connected to an external power supply. The input ends of the linear module and the second-axis module two are both electrically connected to the output end of the controller to control each electrical appliance of the control device.

[0012] Furthermore, the turntable mechanism includes a turntable, a positioning tooling, and a indexing cam. The middle part of the upper surface of the frame is fixedly connected with an indexing cam. The upper end of the output end of the indexing cam is fixedly connected with a turntable. The edge of the turntable is fixedly connected with evenly distributed positioning tooling. The input end of the driving motor of the indexing cam is electrically connected to the output end of the controller to realize the station transformation of the positioning tooling.

[0013] Furthermore, the feeding mechanism includes a vibrating bowl, a positioning channel, a first second-axis module, a mechanical gripper one, a cylinder one, and a photoelectric sensor. The front and rear ends on the left side and the front end on the right side of the upper surface of the frame are both fixedly connected with vibrating bowls. The upper surface of the frame is respectively provided with evenly distributed positioning channels and a first second-axis module. The middle parts of the positioning channels are respectively fixedly connected with the screening channels of the adjacent vibrating bowls. The first second-axis module is respectively located between the turntable and the adjacent vibrating bowls. The lower ends of the toolings of the first second-axis module are both provided with mechanical gripper one. Cylinder one is arranged at one end of the positioning channel far from the turntable. The telescopic ends of cylinder one are respectively slidably connected inside the adjacent positioning channels. The transmitting ends of the photoelectric sensors are fixedly connected to the upper surfaces of the positioning channels at one end far from the turntable. The receiving ends of the photoelectric sensors are fixedly connected to the upper surfaces of the positioning channels at one end close to the turntable. The air inlet of cylinder one is connected to an external air pump. The input ends of the transmitting ends of the photoelectric sensors, the vibrating bowls, the first second-axis module, and the mechanical gripper one are all electrically connected to the output end of the controller. The receiving ends of the photoelectric sensors are both bidirectionally electrically connected to the controller to realize the automatic feeding and assembly of each component.

[0014] Furthermore, the tray assembly includes a tray, a concave opening, and a spring hole. The tray is placed on the upper surface of the sliding table of the linear module. The inside of the tray is provided with evenly distributed spring holes. Vertical springs are placed inside the spring holes. The edges of the tray are all provided with evenly distributed concave openings, which are convenient for the transportation and storage of springs.

[0015] Further, the spring grasping assembly includes an air extraction interface, a hollow air passage, a positioning mandrel, a ventilation slit and a housing. A housing is provided at the lower end of the slide of the second two-axis module. A hollow air passage is provided inside the housing. An air extraction interface is inserted at the upper end of the housing. The air inlet of the air extraction interface is communicated with the hollow air passage. A positioning mandrel is provided at the lower end inside the housing. A ventilation slit is left between the positioning mandrel and the lower end inside the housing to realize the positioning and suction of the spring.

[0016] Further, the detection mechanism includes a second cylinder, an air connection port, a suction cup, a positioning ventilation tooling and a third cylinder. The upper surface of the frame is fixedly connected with a second cylinder. The upper end of the telescopic end of the second cylinder is fixedly connected with an air connection port. The air inlet of the air connection port is connected with a detection air path. A pressure sensor, a solenoid valve and an electro-hydraulic proportional valve are sequentially arranged on the outside of the detection air path from near to far from the air connection port. A suction cup is provided at the air outlet of the air connection port. The upper surface of the turntable is fixedly connected with a third cylinder. The lower end of the telescopic end of the third cylinder is fixedly connected with a positioning ventilation tooling. The second cylinder and the third cylinder are corresponding in the up-and-down position. The air inlets of the second cylinder and the third cylinder are both electrically connected to an external air pump. The pressure sensor is bidirectionally electrically connected to the controller, and the input ends of the solenoid valve and the electro-hydraulic proportional valve are both electrically connected to the output end of the controller to realize automatic detection.

[0017] Further, the screening mechanism includes a third two-axis module, a second mechanical gripper, a qualified product chute, an unqualified product chute, a qualified product bin and an unqualified product bin. The front end of the upper surface of the frame is fixedly connected with a third two-axis module. The lower end of the slide of the third two-axis module is provided with a second mechanical gripper. The front end of the upper surface of the frame is fixedly connected with a qualified product chute and an unqualified product chute. The unqualified product chute is located at the front end of the qualified product chute. The qualified product bin and the unqualified product bin are placed at the lower end of the frame. The lower end of the unqualified product chute corresponds to the unqualified product bin in the up-and-down position. The lower end of the qualified product chute corresponds to the qualified product bin in the up-and-down position. The input ends of the third two-axis module and the second mechanical gripper are both electrically connected to the output end of the controller to realize the sorting of the overcurrent valve.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: This automatic assembly and detection equipment for overcurrent valves has the following advantages:

[0019] 1. Pour the overcurrent front cover, overcurrent piece, and overcurrent rear cover into the interiors of their respective vibrating bowls. Pour the overcurrent front cover into the vibrating bowl at the front left end of the upper surface of the frame, pour the overcurrent piece into the vibrating bowl at the rear left end of the upper surface of the frame, and pour the overcurrent rear cover into the vibrating bowl at the front right end of the upper surface of the frame. Then, turn on each electrical appliance through the controller. The vibrating bowls screen and convey the components. The screening channels of the vibrating bowls are designed differently and can screen according to the differences in the shapes of the components, so that the components reaching the adjacent positioning channels all maintain the same posture. The components are respectively sent into the interiors of the corresponding positioning channels. At this time, the signal between the receiving end and the transmitting end of the photoelectric sensor is disconnected. The receiving end of the photoelectric sensor transmits the information that the component has reached the interior of the positioning channel to the controller. The controller controls the external air pump to start. The telescopic end of the first cylinder extends and pushes the component to the clamping position. The center lines of the positioning channel and the adjacent positioning tooling coincide, and the first mechanical gripper coincides with the center line of the adjacent positioning tooling. The first two-axis module drives the first mechanical gripper to move to the clamping position. The first mechanical gripper descends to clamp the component. Subsequently, the first two-axis module drives the first mechanical gripper to move to the upper end of the positioning tooling that coincides with the center line of the adjacent positioning channel again and places the component into the interior of the positioning tooling. The three feeding mechanisms all place the overcurrent front cover, overcurrent piece, and overcurrent rear cover into the interiors of the adjacent positioning tooling in the same way. When the positioning tooling for assembling the overcurrent front cover and overcurrent piece is transmitted to the rear side of the frame, the slide of the second two-axis module sends the housing to the upper end of the tray. Then, the slide of the second two-axis module descends, and the positioning mandrel is inserted into the interior of the spring. The external air pump pumps air through the air extraction interface. The negative pressure air flow acts on the spring through the central air duct and the ventilation slit. The spring locates the inner diameter through the positioning mandrel. In this way, both suction and positioning are achieved. Subsequently, the slide of the second two-axis module sends the housing to the upper end of the positioning tooling for assembling the overcurrent front cover and overcurrent piece. Then, the slide of the second two-axis module descends, and the positioning mandrel is inserted into the interior of the positioning tooling. The external air pump is turned off, and the spring drops, completing the assembly of the spring. The linear module and the second two-axis module achieve the suction of the springs at different positions on the tray. This realizes the automatic assembly of the overcurrent valve and similar products, saves labor, improves efficiency, and reduces production costs.

[0020] 2. The spring hole is a vertical spring hole. The concave opening does not penetrate from the upper plane of the tray to the bottom. The height of the concave opening is slightly higher than the height of the spring. In this way, when the trays are stacked, the bottom of the concave opening can support on the upper plane of the next-layer blister tray and will not compress the spring, which is convenient for the transportation and storage of the spring and also solves the problems of material separation, positioning, and feeding during the automation of the spring.

[0021] 3. The turntable continues to rotate. The positioning tooling equipped with the flow valve rotates between cylinder two and cylinder three. The external air pump starts. The air connection port contacts the front end of the flow valve cover. It is sealed with the positioning tooling through the suction cup. The positioning and ventilation tooling presses against the rear cover of the flow valve. The side of the flow valve rear cover is made to communicate with the atmosphere through the positioning and ventilation tooling. Subsequently, the electromagnetic proportional valve is adjusted to different pressure values. The solenoid valve is opened to supply air to the flow valve. By detecting the pressure value of the pressure sensor, the qualification status of the flow valve is determined. In this way, unqualified products with multiple springs or stuck flow chips can be detected. The turntable continues to rotate. The two-axis module three drives the mechanical gripper two to take out the assembled flow valve from inside the positioning tooling. The two-axis module three drives the mechanical gripper two to send the qualified flow valves from the qualified product chute to the qualified product bin. The unqualified flow valves are sent from the unqualified product chute to the unqualified product bin. Automatic detection is carried out and unqualified products are removed, improving the qualification rate of products when leaving the factory or being transferred to the next process. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of the present utility model;

[0023] Figure 2 It is a schematic structural diagram of the feeding mechanism of the present utility model;

[0024] Figure 3 It is a schematic structural diagram of the spring feeding mechanism of the present utility model;

[0025] Figure 4 It is a schematic cross-sectional structural diagram of the tray of the present utility model;

[0026] Figure 5 It is a schematic cross-sectional structural diagram of the spring grasping assembly of the present utility model;

[0027] Figure 6 It is a schematic structural diagram of the detection mechanism of the present utility model;

[0028] Figure 7 It is a schematic principle diagram of the detection air circuit of the present utility model.

[0029] In the figure: 1 frame, 2 support, 3 turntable mechanism, 31 turntable, 32 positioning tooling, 33 indexing cam, 4 feeding mechanism, 41 vibrating bowl feeder, 42 positioning channel, 43 first two-axis module, 44 first mechanical gripper, 45 first cylinder, 46 photoelectric sensor, 5 controller, 6 spring feeding mechanism, 61 tray assembly, 611 tray, 612 concave opening, 613 spring hole, 62 linear module, 63 second two-axis module, 64 spring gripping assembly, 641 air extraction interface, 642 middle air passage, 643 positioning mandrel, 644 ventilation slot, 645 housing, 7 spring, 8 detection mechanism, 81 second cylinder, 82 air connection port, 83 suction cup, 84 positioning ventilation tooling, 85 third cylinder, 9 screening mechanism, 91 third two-axis module, 92 second mechanical gripper, 93 qualified product chute, 94 unqualified product chute, 95 qualified product bin, 96 unqualified product bin, 10 pressure sensor, 11 solenoid valve, 12 electro-hydraulic proportional valve, 13 detection air circuit. Detailed implementation mode

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figure 1-7 , this embodiment provides a technical solution: an overcurrent valve automatic assembly and detection device, including a frame 1, a feeding mechanism 4, a spring feeding mechanism 6, a detection mechanism 8 and a screening mechanism 9;

[0032] Frame 1: A turntable mechanism 3 is arranged in the middle of the upper surface thereof. The turntable mechanism 3 includes a turntable 31, a positioning tooling 32 and an indexing cam 33. The indexing cam 33 is fixedly connected to the middle of the upper surface of the frame 1. The upper end of the output end of the indexing cam 33 is fixedly connected to the turntable 31. The edge of the turntable 31 is fixedly connected with evenly distributed positioning tooling 32. The input end of the drive motor of the indexing cam 33 is electrically connected to the output end of the controller 5;

[0033] Feeding mechanism 4: There are three groups in total. The feeding mechanisms 4 are all arranged on the upper surface of the frame 1. The feeding mechanisms 4 are respectively located at the edges of the turntable mechanism 3. The feeding mechanism 4 includes a vibrating bowl 41, a positioning channel 42, a two-axis module 43, a mechanical gripper 44, a cylinder 45 and a photoelectric sensor 46. The front and rear ends on the left side and the front end on the right side of the upper surface of the frame 1 are fixedly connected with vibrating bowls 41 respectively. The upper surface of the frame 1 is respectively provided with evenly distributed positioning channels 42 and two-axis modules 43. The middle parts of the positioning channels 42 are fixedly connected with the screening channels of the adjacent vibrating bowls 41 respectively. The two-axis modules 43 are respectively located between the turntable 31 and the adjacent vibrating bowls 41. Mechanical grippers 44 are arranged at the lower ends of the toolings of the two-axis modules 43. Cylinders 45 are arranged at the ends of the positioning channels 42 far from the turntable 31. The telescopic ends of the cylinders 45 are respectively slidably connected inside the adjacent positioning channels 42. The transmitting ends of the photoelectric sensors 46 are fixedly connected to the upper surfaces of the positioning channels 42 at the ends far from the turntable 31. The receiving ends of the photoelectric sensors 46 are fixedly connected to the upper surfaces of the positioning channels 42 at the ends close to the turntable 31. The air inlets of the cylinders 45 are connected to an external air pump. The transmitting ends of the photoelectric sensors 46, and the input ends of the vibrating bowls 41, the two-axis modules 43 and the mechanical grippers 44 are all electrically connected to the output end of the controller 5. The receiving ends of the photoelectric sensors 46 are bidirectionally electrically connected to the controller 5. Pour the overcurrent front cover, overcurrent piece and overcurrent rear cover into the interiors of the respective vibrating bowls 41. Pour the overcurrent front cover into the interior of the vibrating bowl 41 at the front end on the left side of the upper surface of the frame 1. Pour the overcurrent piece into the interior of the vibrating bowl 41 at the rear end on the left side of the upper surface of the frame 1. Pour the overcurrent rear cover into the interior of the vibrating bowl 41 at the front end on the right side of the upper surface of the frame 1. Then turn on each electrical appliance through the controller 5. The vibrating bowls 41 screen and convey the parts. The screening channels of the vibrating bowls 41 are designed differently and can screen according to the differences in the shapes of the respective parts, so that the parts reaching the adjacent positioning channels 42 all maintain the same posture. The parts are respectively sent into the corresponding positioning channels 42. At this time, the signal between the receiving end and the transmitting end of the photoelectric sensor 46 is disconnected. The receiving end of the photoelectric sensor 46 transmits the information that the part has reached the interior of the positioning channel 42 to the controller 5. The controller 5 controls the external air pump to start. The telescopic end of the cylinder 45 extends out and pushes the part to the clamping position. The center lines of the positioning channel 42 and the adjacent positioning tooling 32 coincide. The center line of the mechanical gripper 44 coincides with that of the adjacent positioning tooling 32. The two-axis module 43 drives the mechanical gripper 44 to move to the clamping position. The mechanical gripper 44 descends to clamp the part. Subsequently, the two-axis module 43 drives the mechanical gripper 44 to move to the upper end of the positioning tooling 32 where the center line coincides with that of the adjacent positioning channel 42 again, and places the part into the interior of the positioning tooling 32. The three feeding mechanisms 4 similarly place the overcurrent front cover, overcurrent piece and overcurrent rear cover into the adjacent positioning toolings 32;

[0034] Spring feeding mechanism 6: It includes a tray assembly 61, a linear module 62, a two-axis module two 63, and a spring grasping component 64. The linear module 62 and the two-axis module two 63 are arranged at the rear side of the upper surface of the frame 1. The tray assembly 61 is placed on the upper surface of the slide table of the linear module 62. The lower end of the slide table of the two-axis module two 63 is provided with the spring grasping component 64. The linear slide table of the two-axis module two 63 is located above the turntable mechanism 3. The tray assembly 61 includes a tray 611, a concave notch 612, and a spring hole 613. The tray 611 is placed on the upper surface of the slide table of the linear module 62. Uniformly distributed spring holes 613 are arranged inside the tray 611. Vertically placed springs 7 are placed inside each of the spring holes 613. Uniformly distributed concave notches 612 are arranged on the edge of the tray 611. The spring grasping component 64 includes an air extraction interface 641, a central air duct 642, a positioning mandrel 643, an air vent slit 644, and a housing 645. The housing 645 is arranged at the lower end of the slide table of the two-axis module two 63. The central air duct 642 is opened inside the housing 645. The air extraction interface 641 is inserted into the upper end of the housing 645. The air inlet of the air extraction interface 641 is communicated with the central air duct 642. The positioning mandrel 643 is arranged at the lower end inside the housing 645. An air vent slit 644 is left between the positioning mandrel 643 and the lower end inside the housing 645. When the positioning tooling 32 for assembling the overcurrent front cover and the overcurrent piece is transmitted to the rear side of the frame 1, the slide table of the two-axis module two 63 sends the housing 645 to the upper end of the tray 611. Then, the slide table of the two-axis module two 63 moves downward. The positioning mandrel 643 is inserted into the inside of the spring 7. The external air pump extracts air through the air extraction interface 641. The negative pressure air flow acts on the spring 7 through the central air duct 642 and the air vent slit 644. The spring 7 also positions the inner diameter through the positioning mandrel 643. In this way, both the suction and the positioning are achieved. The linear module 62 and the two-axis module two 63 achieve the suction of the springs 7 at different positions of the tray 611. The spring holes 613 are vertical spring holes. The concave notches 612 do not penetrate from the upper plane of the tray 611 to the bottom. The height of the concave notches 612 is slightly higher than the height of the spring 7. In this way, when the trays 611 overlap, the bottom of the concave notches 612 can support on the upper plane of the next-layer blister tray and will not compress the spring 7. This not only facilitates the transportation and storage of the spring 7 but also solves the problems of material separation, positioning, and feeding during the automation of the spring 7. Subsequently, the slide table of the two-axis module two 63 sends the housing 645 to the upper end of the positioning tooling 32 for assembling the overcurrent front cover and the overcurrent piece. Subsequently, the slide table of the two-axis module two 63 moves downward. The positioning mandrel 643 is inserted into the inside of the positioning tooling 32. The external air pump is turned off, and the spring 7 drops, completing the assembly of the spring 7;

[0035] Detection mechanism 8: The detection mechanism 8 includes cylinder two 81, air connection port 82, suction cup 83, positioning and ventilation tooling 84, and cylinder three 85. The upper surface of the frame 1 is fixedly connected with cylinder two 81. The upper end of the telescopic end of cylinder two 81 is fixedly connected with air connection port 82. The air inlet of air connection port 82 is connected with the detection air circuit 13. The external part of the detection air circuit 13 is successively provided with a pressure sensor 10, a solenoid valve 11, and an electro-hydraulic proportional valve 12 from near to far starting from air connection port 82. The air outlet of air connection port 82 is provided with a suction cup 83. The upper surface of the turntable 31 is fixedly connected with cylinder three 85. The lower end of the telescopic end of cylinder three 85 is fixedly connected with positioning and ventilation tooling 84. Cylinder two 81 and cylinder three 85 are in corresponding upper and lower positions. The air inlets of cylinder two 81 and cylinder three 85 are both electrically connected to an external air pump. The pressure sensor 10 is bidirectionally electrically connected to the controller 5. The input ends of the solenoid valve 11 and the electro-hydraulic proportional valve 12 are both electrically connected to the output end of the controller 5. The turntable 31 continues to rotate and places the positioning tooling 32 equipped with the overcurrent front cover, overcurrent piece, and spring 7 into the overcurrent rear cover to complete the assembly of the overcurrent valve. The turntable 31 continues to rotate, and the positioning tooling 32 with the assembled overcurrent valve rotates between cylinder two 81 and cylinder three 85. The external air pump is started. The air connection port 82 contacts the overcurrent front cover end, and is hermetically sealed with the positioning tooling 32 through the suction cup 83. The positioning and ventilation tooling 84 presses on the rear cover of the overcurrent valve, and makes the side of the overcurrent rear cover communicate with the atmosphere through the positioning and ventilation tooling 84. Subsequently, the electro-hydraulic proportional valve 12 is adjusted to different pressure values, the solenoid valve 11 is opened to supply air to the overcurrent valve, and by detecting the pressure value of the pressure sensor 10, the qualification situation of the overcurrent valve is determined. The electro-hydraulic proportional valve 12 first outputs a set smaller pressure value P1. If there is no spring 7 in the overcurrent valve, the overcurrent piece will fit with the overcurrent rear cover, blocking the air flow from flowing out through the overcurrent rear cover. At this time, the value of the pressure sensor 10 is P11. If there is a spring or the overcurrent piece is stuck, or there are multiple springs 7, the overcurrent piece will not fit with the rear cover under the pressure P1, so the air flow channel is unobstructed, and the value of the pressure sensor 10 will be less than P11. In this way, the unqualified products without the overcurrent piece can be detected. The electro-hydraulic proportional valve 12 then outputs a set larger pressure value P2. Under the pressure P2, exactly one spring and a flexible overcurrent piece can be pushed to fit with the overcurrent rear cover, blocking the air flow from flowing out through the overcurrent rear cover. At this time, the value of the pressure sensor 10 is P21. If the overcurrent piece is stuck, or there are multiple springs, the overcurrent piece will not fit with the rear cover under the pressure P2, so the air flow channel is unobstructed, and the value of the pressure sensor 10 will be greater than P21. In this way, the unqualified products with multiple springs or stuck overcurrent pieces can be detected;

[0036] Screening mechanism 9: It is arranged on the upper surface and inside of the frame 1. The screening mechanism 9 includes a two-axis module three 91, a mechanical gripper two 92, a qualified product chute 93, a non-qualified product chute 94, a qualified product bin 95 and a non-qualified product bin 96. The front end of the upper surface of the frame 1 is fixedly connected with a two-axis module three 91. The lower end of the slide of the two-axis module three 91 is provided with a mechanical gripper two 92. The front end of the upper surface of the frame 1 is fixedly connected with a qualified product chute 93 and a non-qualified product chute 94. The non-qualified product chute 94 is located at the front end of the qualified product chute 93. The lower ends of the qualified product bin 95 and the non-qualified product bin 96 are placed at the lower end of the frame 1. The lower end of the non-qualified product chute 94 corresponds to the non-qualified product bin 96 in the up and down position. The lower end of the qualified product chute 93 corresponds to the qualified product bin 95 in the up and down position. The input ends of the two-axis module three 91 and the mechanical gripper two 92 are electrically connected to the output end of the controller 5. The turntable 31 continues to rotate. The two-axis module three 91 drives the mechanical gripper two 92 to take out the assembled overcurrent valve from the positioning tooling 32. The two-axis module three 91 drives the mechanical gripper two 92 to send the qualified overcurrent valve from the qualified product chute 93 to the qualified product bin 95, and the unqualified overcurrent valve is sent from the non-qualified product chute 94 to the non-qualified product bin 96.

[0037] Among them: It also includes a bracket 2. The bracket 2 is fixedly connected to the upper surface of the frame 1. The upper end of the bracket 2 is provided with a controller 5. The input end of the controller 5 is electrically connected to an external power supply. The input ends of the linear module 62 and the two-axis module two 63 are electrically connected to the output end of the controller 5.

[0038] The working principle of an overcurrent valve automatic assembly and detection device provided by the present utility model is as follows: Pour the overcurrent front cover, overcurrent piece, and overcurrent rear cover into the interiors of respective vibrating bowls 41. Pour the overcurrent front cover into the vibrating bowl 41 at the front end on the left side of the upper surface of the frame 1, pour the overcurrent piece into the vibrating bowl 41 at the rear end on the left side of the upper surface of the frame 1, and pour the overcurrent rear cover into the vibrating bowl 41 at the front end on the right side of the upper surface of the frame 1. Then, turn on each electrical appliance through the controller 5. The vibrating bowls 41 screen and feed the components. The screening channels of the vibrating bowls 41 are designed differently and can screen according to the differences in the shapes of the components, so that the components reaching the adjacent positioning channels 42 all maintain the same posture. The components are respectively sent into the corresponding positioning channels 42. At this time, the signal between the receiving end and the transmitting end of the photoelectric sensor 46 is disconnected. The receiving end of the photoelectric sensor 46 transmits the information that the component reaches the interior of the positioning channel 42 to the controller 5. The controller 5 controls the external air pump to start, and the telescopic end of the first cylinder 45 extends to push the component to the clamping position. The center lines of the positioning channel 42 and the adjacent positioning fixture 32 coincide, and the center line of the first mechanical gripper 44 coincides with the adjacent positioning fixture 32. The first two-axis module 43 drives the first mechanical gripper 44 to move to the clamping position. The first mechanical gripper 44 descends to clamp the component. Subsequently, the first two-axis module 43 drives the first mechanical gripper 44 to move to the upper end of the positioning fixture 32 that coincides with the center line of the adjacent positioning channel 42 again and places the component into the interior of the positioning fixture 32. The three feeding mechanisms 4 all place the overcurrent front cover, overcurrent piece, and overcurrent rear cover into the adjacent positioning fixtures 32 in the same way. When the positioning fixture 32 for assembling the overcurrent front cover and overcurrent piece is transmitted to the rear side of the frame 1, the slide of the second two-axis module 63 sends the housing 645 to the upper end of the tray 611. Then, the slide of the second two-axis module 63 descends, and the positioning mandrel 643 is inserted into the interior of the spring 7. The external air pump pumps air through the air extraction interface 641, and the negative pressure air flow acts on the spring 7 through the central air passage 642 and the ventilation slit 644. The spring 7 positions the inner diameter through the positioning mandrel 643. In this way, both suction and positioning are achieved. The spring hole 613 is a vertical spring hole, and the concave opening 612 does not penetrate from the upper plane of the tray 611 to the bottom. The height of the concave opening 612 is slightly higher than the height of the spring 7. In this way, when the trays 611 overlap, the bottom of the concave opening 612 can support on the upper plane of the next-layer blister tray and will not compress the spring 7, which is convenient for the transportation and storage of the spring 7 and also solves the problems of material separation, positioning, and feeding of the spring 7 during automation. The linear module 62 and the second two-axis module 63 achieve the suction of the springs 7 at different positions of the tray 611. Subsequently, the slide of the second two-axis module 63 sends the housing 645 to the upper end of the positioning fixture 32 for assembling the overcurrent front cover and overcurrent piece. Subsequently, the slide of the second two-axis module 63 descends, and the positioning mandrel 643 is inserted into the interior of the positioning fixture 32. The external air pump is turned off, and the spring 7 falls to complete the assembly of the spring 7.Subsequently, the turntable 31 continues to rotate, and the positioning tooling 32 equipped with the overcurrent front cover, overcurrent piece, and spring 7 is placed into the overcurrent rear cover to complete the assembly of the overcurrent valve. The turntable 31 continues to rotate, and the positioning tooling 32 with the assembled overcurrent valve rotates between the second cylinder 81 and the third cylinder 85. The external air pump is started, and the air connection port 82 contacts the overcurrent front cover end. It is sealed with the positioning tooling 32 through the suction cup 83. The positioning and venting tooling 84 presses against the rear cover of the overcurrent valve, and the overcurrent rear cover side communicates with the atmosphere through the positioning and venting tooling 84. Subsequently, the electromagnetic proportional valve 12 is adjusted to different pressure values, the solenoid valve 11 is opened to supply air to the overcurrent valve, and the qualified situation of the overcurrent valve is determined by detecting the pressure value of the pressure sensor 10. The electromagnetic proportional valve 12 first outputs a set smaller pressure value P1. If there is no spring 7 in the overcurrent valve, the overcurrent piece will fit against the overcurrent rear cover, blocking the airflow from flowing out through the overcurrent rear cover. At this time, the value of the pressure sensor 10 is P11. If there is a spring or the overcurrent piece is stuck, or there are multiple springs 7, the overcurrent piece will not fit against the rear cover under the pressure P1, so the airflow channel is unobstructed, and the value of the pressure sensor 10 will be less than P11. In this way, the unqualified products without the overcurrent piece can be detected. Then the electromagnetic proportional valve 12 outputs a set larger pressure value P2. Under the pressure P2, exactly one spring and a flexible overcurrent piece can be pushed to fit against the overcurrent rear cover, blocking the airflow from flowing out through the overcurrent rear cover. At this time, the value of the pressure sensor 10 is P21. If the overcurrent piece is stuck, or there are multiple springs, the overcurrent piece will not fit against the rear cover under the pressure P2, so the airflow channel is unobstructed, and the value of the pressure sensor 10 will be greater than P21. In this way, the unqualified products with multiple springs or stuck overcurrent pieces can be detected. After the detection is completed, the telescopic ends of the second cylinder 81 and the third cylinder 85 retract, the air connection port 82 and the positioning and venting tooling 84 leave the positioning tooling 32, the turntable 31 continues to rotate, and the two-axis module three 91 drives the mechanical gripper two 92 to take out the assembled overcurrent valve from the inside of the positioning tooling 32. The two-axis module three 91 drives the mechanical gripper two 92 to send the qualified overcurrent valve from the qualified product material channel 93 to the qualified product material box 95, and the unqualified overcurrent valve is sent from the unqualified product material channel 94 to the unqualified product material box 96.

[0039] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be included in the patent protection scope of the present invention by the same token.

Claims

1. An automatic assembly and detection device for a flow valve, characterized in that: It comprises a frame (1), a feeding mechanism (4), a spring feeding mechanism (6), a detection mechanism (8) and a screening mechanism (9); Frame (1): a turntable mechanism (3) is arranged in the middle of its upper surface; Feeding mechanism (4): there are three groups of feeding mechanisms (4), all of which are arranged on the upper surface of the frame (1), and the feeding mechanisms (4) are respectively located at the edge of the turntable mechanism (3); A spring feeding mechanism (6): comprising a tray assembly (61), a linear module (62), a second two-axis module (63) and a spring grabbing assembly (64); the linear module (62) and the second two-axis module (63) are arranged on the rear side of the upper surface of the frame (1); the tray assembly (61) is placed on the upper surface of the slide of the linear module (62); the spring grabbing assembly (64) is arranged at the lower end of the slide of the second two-axis module (63); and the linear slide of the second two-axis module (63) is located at the upper end of the turntable mechanism (3); Detection mechanism (8): it is arranged on the upper surface of the frame (1) and the upper end of the turntable mechanism (3); Screening mechanism (9): It is arranged on the upper surface and inside of the frame (1).

2. The automatic assembly and detection equipment for flow valves according to claim 1 is characterized in that: It also includes a bracket (2), the bracket (2) being fixedly connected to the upper surface of the frame (1), a controller (5) being arranged at the upper end of the bracket (2), an input end of the controller (5) being electrically connected to an external power supply, and input ends of the linear module (62) and the second two-axis module (63) being electrically connected to an output end of the controller (5).

3. The automatic assembly and detection device for a flow valve according to claim 2 is characterized in that: The turntable mechanism (3) comprises a turntable (31), a positioning fixture (32) and a station divider (33); the station divider (33) is fixedly connected to the middle of the upper surface of the frame (1); the upper end of the output end of the station divider (33) is fixedly connected to the turntable (31); the edge of the turntable (31) is fixedly connected to evenly distributed positioning fixtures (32); and the input end of the drive motor of the station divider (33) is electrically connected to the output end of the controller (5).

4. The automatic assembly and detection device for a flow valve according to claim 3 is characterized in that: The feeding mechanism (4) comprises a vibration plate (41), a positioning channel (42), a two-axis module (43), a mechanical gripper (44), a cylinder (45) and a photoelectric sensor (46). The front and rear ends on the left side and the front end on the right side of the upper surface of the frame (1) are fixedly connected to the vibration plate (41). The upper surface of the frame (1) is provided with evenly distributed positioning channels (42) and two-axis modules (43). The middle of the positioning channel (42) is fixedly connected to the screening channel of the adjacent vibration plate (41). The two-axis modules (43) are respectively located between the rotating plate (31) and the adjacent vibration plate (41). The lower end of the tooling of the two-axis modules (43) is provided with a mechanical gripper (44). The positioning channel (42) is located at a distance of 100 m from the upper surface of the frame (1). A cylinder (45) is provided at one end away from the turntable (31), and the telescopic ends of the cylinder (45) are respectively slidably connected to the inside of the adjacent positioning channel (42). The end of the upper surface of the positioning channel (42) away from the turntable (31) is fixedly connected to the transmitting end of the photoelectric sensor (46), and the end of the upper surface of the positioning channel (42) close to the turntable (31) is fixedly connected to the receiving end of the photoelectric sensor (46). The air inlet of the cylinder (45) is connected to an external air pump, and the transmitting end of the photoelectric sensor (46), the input end of the vibration plate (41), the two-axis module (43) and the mechanical gripper (44) are all electrically connected to the output end of the controller (5), and the receiving end of the photoelectric sensor (46) is bidirectionally electrically connected to the controller (5).

5. The automatic assembly and detection equipment for flow valves according to claim 1 is characterized in that: The tray assembly (61) comprises a tray (611), an inner recess (612) and a spring hole (613); the tray (611) is placed on the upper surface of the slide table of the linear module (62); the tray (611) is provided with evenly distributed spring holes (613) inside; vertically placed springs (7) are placed inside the spring holes (613); and the edges of the tray (611) are provided with evenly distributed inner recesses (612).

6. The automatic assembly and detection equipment for flow valve according to claim 1, characterized in that: The spring grabbing assembly (64) comprises an air extraction interface (641), an air passage (642), a positioning core shaft (643), a ventilation slit (644) and a shell (645); the lower end of the slide table of the two-axis module (63) is provided with a shell (645); the interior of the shell (645) is provided with an air passage (642); the upper end of the shell (645) is plugged with an air extraction interface (641); the air inlet of the air extraction interface (641) is connected to the air passage (642); the lower end of the interior of the shell (645) is provided with a positioning core shaft (643); and a ventilation slit (644) is left between the positioning core shaft (643) and the lower end of the interior of the shell (645).

7. The automatic assembly and detection equipment for flow valves according to claim 3 is characterized in that: The detection mechanism (8) comprises a second cylinder (81), an air connection port (82), a suction cup (83), a positioning ventilation tool (84) and a third cylinder (85); the upper surface of the frame (1) is fixedly connected to the second cylinder (81); the upper end of the telescopic end of the second cylinder (81) is fixedly connected to the air connection port (82); the air inlet of the air connection port (82) is connected to a detection air circuit (13); and the outside of the detection air circuit (13) is provided with a pressure sensor (10), a solenoid valve (11) and a solenoid proportional valve (12) in sequence from the air connection port (82) to the farthest. The air outlet of the air inlet (82) is provided with a suction cup (83), the upper surface of the turntable (31) is fixedly connected to the cylinder three (85), the lower end of the telescopic end of the cylinder three (85) is fixedly connected to the positioning ventilation tool (84), the upper and lower positions of the cylinder two (81) and the cylinder three (85) correspond to each other, the air inlets of the cylinder two (81) and the cylinder three (85) are both electrically connected to an external air pump, the pressure sensor (10) is bidirectionally electrically connected to the controller (5), and the input ends of the solenoid valve (11) and the solenoid proportional valve (12) are both electrically connected to the output end of the controller (5).

8. The automatic assembly and detection equipment for flow valves according to claim 2, characterized in that: The screening mechanism (9) comprises a two-axis module three (91), a mechanical clamp two (92), a qualified product material channel (93), a non-qualified product material channel (94), a qualified product material frame (95) and a non-qualified product material frame (96); the front end of the upper surface of the frame (1) is fixedly connected to the two-axis module three (91); the lower end of the slide table of the two-axis module three (91) is provided with a mechanical clamp two (92); the front end of the upper surface of the frame (1) is fixedly connected to the qualified product material channel (93) and the non-qualified product material frame (96); The unqualified product material channel (94) is located at the front end of the qualified product material channel (93). A qualified product material frame (95) and an unqualified product material frame (96) are placed at the lower end of the frame (1). The lower end of the unqualified product material channel (94) corresponds to the upper and lower positions of the unqualified product material frame (96). The lower end of the qualified product material channel (93) corresponds to the upper and lower positions of the qualified product material frame (95). The input ends of the two-axis module three (91) and the mechanical gripper two (92) are electrically connected to the output end of the controller (5).

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