Automatic assembling equipment for electromagnetic valve

Abstract

The invention discloses automatic electromagnetic valve assembling equipment, and relates to the technical field of assembling equipment, the automatic electromagnetic valve assembling equipment comprises a workbench and a turntable conveying device arranged on the workbench, a carrier is arranged on the turntable conveying device, the carrier comprises a first positioning seat and a second positioning seat, and a positioning cylinder is rotationally arranged in the second positioning seat; a pre-screwing station, a valve body carrying station and a screwing station are sequentially arranged on the workbench in the conveying direction of the rotary disc conveying device, and a pre-screwing device used for elastically pressing the valve rod in the positioning barrel and screwing the positioning barrel so that the valve rod can be accurately positioned into the positioning barrel is arranged at the pre-screwing station. The valve body carrying station is provided with a valve body carrying device used for carrying the valve body on the first positioning seat to the second positioning seat, and the tightening station is provided with a tightening device used for pressing the valve body on the second positioning seat and screwing the positioning cylinder so as to screw the valve rod in the positioning cylinder to the valve body. According to the automatic assembling device, automatic assembling of the electromagnetic valve is achieved, and the assembling qualification rate and the assembling efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of assembly equipment, and in particular to automatic assembly equipment for solenoid valves. Background Art

[0002] The solenoid valve of a washing machine is an important component of the washing machine control system. At present, the solenoid valve is mainly assembled manually. There are many human factors in manual assembly. Among them, the problems of valve body and valve stem being twisted off and twisting force not meeting the requirements are particularly prominent. Once a problem occurs, it will directly affect the assembly qualification rate of the solenoid valve. In addition, manual assembly also has the problem of low assembly efficiency and cannot meet customer needs. Summary of the invention

[0003] In view of the above defects in the prior art, the present invention provides an automatic assembly device for solenoid valves, which realizes the automatic assembly of solenoid valves and improves the assembly qualification rate and assembly efficiency.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] An automatic assembly device for solenoid valves comprises a workbench and a turntable conveyor device arranged on the workbench, wherein the workbench is provided with a pre-tightening station, a valve body transporting station and a tightening station in sequence along the conveying direction of the turntable conveyor device, the pre-tightening station is provided with a pre-tightening device, the valve body transporting station is provided with a valve body transporting device, and the tightening station is provided with a tightening device; a carrier is provided on the turntable conveyor device, and the turntable conveyor device is used to rotate and transport the carrier to each station; the carrier comprises a first A positioning seat and a second positioning seat, wherein a positioning cylinder for positioning a valve stem is rotatably arranged in the second positioning seat; the pre-tightening device is used to elastically compress the valve stem in the positioning cylinder, and to screw the positioning cylinder so that the valve stem is accurately positioned in the positioning cylinder; the valve body transporting device is used to transport the valve body on the first positioning seat to the second positioning seat; the tightening device is used to compress the valve body on the second positioning seat, and to screw the positioning cylinder so that the valve stem in the positioning cylinder is screwed onto the valve body so that the two are assembled into a solenoid valve.

[0006] Among them, the pre-tightening device includes a valve stem elastic clamping mechanism and a pre-tightening mechanism, the valve stem elastic clamping mechanism is used to elastically press down the valve stem; the pre-tightening mechanism includes a first movable module arranged on the workbench and a first electric screwing tool arranged on the first movable module, the first movable module is used to drive the first electric screwing tool to move horizontally and vertically, and the first electric screwing tool is used to screw the positioning cylinder.

[0007] The valve body handling device includes a second movable module arranged on the workbench and a first clamping mechanism arranged on the second movable module, the second movable module is used to drive the first clamping mechanism to move horizontally and vertically, and the first clamping mechanism is used to clamp the valve body.

[0008] Among them, the tightening device includes a valve body clamping mechanism and a tightening mechanism, the valve body clamping mechanism is used to press down the valve body; the tightening mechanism includes a third movable module arranged on the workbench and a second electric screwing tool arranged on the third movable module, the third movable module is used to drive the second electric screwing tool to vertically reciprocate linear motion, and the second electric screwing tool is used to screw the positioning cylinder.

[0009] Among them, a visual inspection station is also provided on the workbench, and the visual inspection station is located between the pre-tightening station and the valve body transporting station. A visual inspection device is provided at the visual inspection station, and the visual inspection device includes an ejection mechanism, a first visual inspection mechanism and a second visual inspection mechanism. The ejection mechanism is used to eject the positioning cylinder in the second positioning seat so that the second visual inspection mechanism can perform an appearance inspection on the valve stem in the positioning cylinder, and the first visual inspection mechanism is used to perform an appearance inspection on the valve body on the first positioning seat.

[0010] Among them, a valve body dust removal device is also provided at the visual inspection station, and the valve body dust removal device includes a sealing mechanism and a dust suction mechanism. The valve body has a main channel and a branch channel connected to the main channel, and the branch channel is provided with a valve stem mounting hole connecting the branch channel and the outside world. The sealing mechanism is used to seal the valve stem mounting hole, and the dust suction mechanism is used to be connected to the main channel to remove dust from the interior of the valve body.

[0011] Among them, a height detection station is also arranged on the workbench. Along the conveying direction of the turntable conveying device, the height detection station is located downstream of the tightening station. A lifting and turning device and a height detector are arranged at the height detection station. The lifting and turning device includes a lifting driving component arranged on the workbench and a clamping and turning mechanism arranged on the lifting driving component. The clamping and turning mechanism is used to clamp the solenoid valve and turn the solenoid valve. The lifting driving component is used to drive the turned solenoid valve to move vertically to the detection position of the height detector. The height detector is used to detect whether the assembly height of the solenoid valve is qualified.

[0012] Among them, a material unloading station is also arranged on the workbench. Along the conveying direction of the turntable conveyor device, the material unloading station is located downstream of the height detection station. Two material unloading and conveying devices are arranged at the material unloading station. One of the material unloading and conveying devices is used to transport and unload the solenoid valve that passes the height detection, and the other material unloading and conveying device is used to transport and unload the solenoid valve that fails the height detection.

[0013] Among them, the unloading and handling device includes a fourth movable module arranged on the workbench and a second clamping mechanism arranged on the fourth movable module, the fourth movable module is used to drive the second clamping mechanism to move horizontally and vertically, and the second clamping mechanism is used to clamp the solenoid valve to transport the solenoid valve to a qualified product conveyor or a waste material box.

[0014] Among them, a carrier dust removal station is also provided on the workbench. Along the conveying direction of the turntable conveyor device, the carrier dust removal station is located downstream of the unloading station. A carrier dust removal device connected to a vacuum cleaner is provided at the carrier dust removal station. The carrier dust removal device is used to remove dust from the empty carrier.

[0015] By adopting the above technical solution, the beneficial effects of the present invention are:

[0016] The automatic assembly equipment for solenoid valves provided by the present invention rotates and transports the carrier to each workstation through a turntable conveying device, thereby realizing automatic transportation; the valve stem in the positioning cylinder is elastically pressed by a pre-tightening device, and the positioning cylinder is screwed so that the valve stem is accurately positioned in the positioning cylinder, thereby realizing precise positioning of the valve stem in the positioning cylinder; the valve body is positioned by a first positioning seat and a second positioning seat, thereby realizing precise positioning of the valve body; the valve body on the first positioning seat is transported to the second positioning seat by a valve body transporting device, thereby realizing automatic transport of the valve body; the valve body on the second positioning seat is pressed by a tightening device, and the positioning cylinder is screwed so that the valve stem in the positioning cylinder is screwed onto the valve body so that the two are assembled into a solenoid valve, thereby realizing automatic assembly of the solenoid valve. Compared with the prior art, the automatic assembly equipment for solenoid valves of the present invention realizes automation, and can automatically assemble the solenoid valve more quickly, stably and accurately, thereby avoiding various assembly quality problems occurring during manual assembly, thereby ensuring the assembly consistency of the solenoid valve, and improving the assembly qualification rate and assembly efficiency of the solenoid valve, thereby meeting customer needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the solenoid valve body;

[0018] Figure 2 It is a structural diagram of the valve stem of the solenoid valve;

[0019] Figure 3It is a structural schematic diagram of the automatic assembly equipment of the solenoid valve of the present invention;

[0020] Figure 4 yes Figure 3 The structural diagram of the turntable conveying device;

[0021] Figure 5 yes Figure 3 Schematic diagram of the structure of the medium vehicle;

[0022] Figure 6 It is a schematic diagram of the positioning of the valve body, valve stem and carrier;

[0023] Figure 7 yes Figure 3 A schematic diagram of the structure of the pre-tightening device;

[0024] Figure 8 yes Figure 3 Schematic diagram of the structure of the visual inspection device and the valve body dust removal device;

[0025] Fig. 9 yes Figure 3 Structural schematic diagram of the middle valve body handling device;

[0026] Fig.10 yes Figure 3 A schematic diagram of the structure of the tightening device;

[0027] Fig.11 yes Figure 3 Schematic diagram of the structure of the middle lifting and turning device and the height detector;

[0028] Fig.12 yes Figure 3 Structural schematic diagram of the intermediate material handling device;

[0029] Fig.13 yes Figure 3 A schematic diagram of the structure of the dust removal device for the mid-carrier;

[0030] In the figure: 1, workbench; 2, turntable conveying device; 21, turntable; 22, photoelectric detection switch; 3, pre-tightening device; 31, valve stem elastic clamping mechanism; 32, pre-tightening mechanism; 321, first mobile module; 322, first electric screwing tool; 4, valve body conveying device; 41, second mobile module; 42, first clamping mechanism; 5, tightening device; 51, valve body clamping mechanism; 52, tightening mechanism; 521, third mobile module; 522, second electric screwing tool; 6, carrier; 61, first positioning seat; 62, second positioning seat; 63, positioning cylinder; 7, visual Detection device; 71. Ejection mechanism; 72. First visual detection mechanism; 73. Second visual detection mechanism; 8. Dust removal device for valve body; 81. Sealing mechanism; 82. Dust suction mechanism; 9. Lifting and turning device; 91. Lifting drive member; 92. Clamping and turning mechanism; 10. Height detector; 11. Material unloading and handling device; 111. Fourth movable module; 112. Second clamping mechanism; 12. Conformity conveyor; 13. Waste material box; 14. Carrier dust removal device; 15. Valve body; 150. Valve stem mounting hole; 151. Main channel; 152. Branch channel; 16. Valve stem. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] like Figure 1 and Figure 2 As shown, the present embodiment discloses a solenoid valve for a washing machine, comprising a valve body 15 and four valve stems 16. The valve body 15 has a main channel 151 and a branch channel 152 connected to the main channel 151. The branch channel 152 is provided with four valve stem mounting holes 150 connected to the outside. The four valve stems 16 are respectively screwed into the corresponding valve stem mounting holes 150. In order to realize the automatic assembly of the solenoid valve, the present embodiment discloses a solenoid valve automatic assembly device.

[0033] like Figures 3 to 13As shown, the solenoid valve automatic assembly equipment includes a workbench 1 and a turntable conveyor 2 arranged on the workbench 1. The workbench 1 is provided with a pre-tightening station, a valve body transporting station and a tightening station in sequence along the conveying direction of the turntable conveyor 2. The pre-tightening station is provided with a pre-tightening device 3, the valve body transporting station is provided with a valve body transporting device 4, and the tightening station is provided with a tightening device 5; a carrier 6 is provided on the turntable conveyor 2, and the turntable conveyor 2 is used to rotate and transport the carrier 6 to each station; the carrier 6 includes a first positioning seat 6 for positioning the valve body 15 1 and a second positioning seat 62, in which a positioning cylinder 63 for positioning the valve stem 16 is rotatably arranged; the pre-tightening device 3 is used to elastically compress the valve stem 16 in the positioning cylinder 63, and screw the positioning cylinder 63 to accurately position the valve stem 16 in the positioning cylinder 63; the valve body carrying device 4 is used to carry the valve body on the first positioning seat 61 to the second positioning seat 62; the tightening device 5 is used to compress the valve body 15 on the second positioning seat 62, and screw the positioning cylinder 63 to screw the valve stem 16 in the positioning cylinder 63 onto the valve body 15 so that the two are automatically assembled into a solenoid valve.

[0034] The solenoid valve automatic assembly equipment realizes the rapid, stable and precise automatic assembly of solenoid valves, avoiding various assembly quality problems that occur during the manual assembly process. It not only ensures the assembly consistency of the solenoid valves, but also improves the assembly qualification rate and assembly efficiency of the solenoid valves, meeting customer needs.

[0035] The turntable conveying device 2 in this embodiment includes a turntable 21 driven by a motor or a pneumatic rotating platform, a plurality of carriers 6 are fixedly arranged on the turntable 21, and a plurality of photoelectric detection switches 22 corresponding to the carriers 6 are arranged on the turntable 21, and the photoelectric detection switch 22 is used to detect whether there is a valve body 15 on the carrier 6. By setting the turntable conveying device 2, not only can the carrier 6 be rotated and conveyed to each workstation, realizing automatic conveyance, but also the turntable conveying device 2 makes the structure of the entire equipment more compact, reduces the volume of the equipment, saves space, improves the space utilization rate of the equipment, and is more conducive to the spatial arrangement of the equipment.

[0036] The pre-tightening device 3 in this embodiment includes a valve stem elastic clamping mechanism 31 and a pre-tightening mechanism 32. The valve stem elastic clamping mechanism 31 is used to elastically press down the valve stem 16. The pre-tightening mechanism 32 includes a first movable module 321 arranged on the workbench 1 and a first electric screwing tool 322 arranged on the first movable module 321. The first movable module 321 is used to drive the first electric screwing tool 322 to move horizontally and vertically. The first electric screwing tool 322 is used to screw the positioning cylinder 63. The pre-tightening device 3 elastically presses the valve stem 16 in the positioning cylinder 63 through the valve stem elastic clamping mechanism 31, and screws the positioning cylinder 63 through the pre-tightening mechanism 32 so that the valve stem 16 in the positioning cylinder 63 is accurately positioned in the positioning cylinder 63, thereby realizing the precise positioning of the valve stem 16 in the positioning cylinder 63, and making full preparations for the precise assembly of the solenoid valve.

[0037] Specifically, the valve stem elastic clamping mechanism 31 includes a vertical telescopic cylinder arranged on the workbench 1 through a bracket and an elastic floating pressure head arranged on the vertical telescopic cylinder. The vertical telescopic cylinder is used to drive the elastic floating pressure head to perform vertical reciprocating linear motion, and the elastic floating pressure head is used to press down the valve stem 16; the first movable module 321 includes a horizontal telescopic cylinder and a vertical telescopic cylinder whose movement directions are perpendicular to each other, the horizontal telescopic cylinder is arranged on the workbench 1, and the vertical telescopic cylinder is arranged on the power output part of the horizontal telescopic cylinder, and a mounting seat is arranged on the power output part of the vertical telescopic cylinder, and the first electric screwing tool 322 includes a motor arranged on the mounting seat and a screwdriver driven by the motor.

[0038] In order to further improve the assembly efficiency, four elastic floating pressure heads are provided in this embodiment. When pressed down, the four elastic floating pressure heads press down four valve stems 16 respectively; at the same time, two sets of first electric screwing tools 322 are provided, one set of screwing tools 322 has a screwing cutter directly connected to its motor, and the other set of screwing cutter of the first electric screwing tool 322 is connected to its motor through a belt transmission mechanism. When in use, the four valve stems 16 are grouped in pairs, and the two sets of first electric screwing tools 322 first pre-tighten one group of valve stems 16 at the same time, and then pre-tighten the other group of valve stems 16 at the same time.

[0039] The valve body handling device 4 in this embodiment includes a second movable module 41 disposed on the workbench 1 and a first clamping mechanism 42 disposed on the second movable module 41, the second movable module 41 is used to drive the first clamping mechanism 42 to move horizontally and vertically, and the first clamping mechanism 42 is used to clamp the valve body 15. The valve body handling device 4 takes over the conventional manual handling and loading tasks, realizes the automatic handling of the valve body 15, and greatly improves the assembly efficiency.

[0040] Specifically, the second movable module 41 includes a horizontal linear electric cylinder arranged on the workbench 1 through a bracket and a vertical telescopic cylinder arranged on the horizontal linear electric cylinder. The first clamping mechanism 42 includes a pneumatic clamp arranged on the vertical telescopic cylinder. The pneumatic clamp is used to clamp or release the valve body 15. The horizontal linear electric cylinder is used to drive the clamped valve body 15 to perform horizontal reciprocating linear motion. The vertical telescopic cylinder is used to drive the clamped valve body 15 to perform vertical reciprocating linear motion.

[0041] The tightening device 5 in this embodiment includes a valve body clamping mechanism 51 and a tightening mechanism 52. The valve body clamping mechanism 51 is used to press down the valve body 15. The tightening mechanism 52 includes a third movable module 521 arranged on the workbench 1 and a second electric screwing tool 522 arranged on the third movable module 521. The third movable module 521 is used to drive the second electric screwing tool 522 to vertically reciprocate linearly, and the second electric screwing tool 522 is used to screw the positioning cylinder 63. The tightening device 5 presses the valve body 15 on the second positioning seat 62 through the valve body clamping mechanism 51, and screws the positioning cylinder 63 through the tightening mechanism 52 to screw the valve stem 16 onto the valve body 15 so that the two are automatically assembled into a solenoid valve, thereby realizing the automatic assembly of the solenoid valve.

[0042] Specifically, the valve body clamping mechanism 51 includes a vertical telescopic cylinder arranged on the workbench 1 through a bracket and a pressure head arranged on the vertical telescopic cylinder. The vertical telescopic cylinder is used to drive the pressure head to perform vertical reciprocating linear motion, and the pressure head is used to press down the valve body 15; the third movable module 521 includes a vertical telescopic cylinder arranged on the workbench 1 through a bracket, and the second electric screwing tool 522 is slidably arranged on the bracket through a slide rail and is connected to the power output part of the telescopic cylinder. The vertical telescopic cylinder drives the second electric screwing tool 522 to perform vertical reciprocating linear motion, and the second electric screwing tool 522 is used to screw the positioning cylinder 63. Since the second electric screwing tool 522 is a purchased part and is a prior art, it will not be described here.

[0043] Since the solenoid valve in this embodiment has four valve stems 16 , four sets of tightening devices 5 are correspondingly provided in this embodiment. The four sets of tightening devices 5 are respectively used to screw the corresponding valve stems 16 into the corresponding valve stem mounting holes 150 of the valve body 15 .

[0044] The workbench 1 in this embodiment is also provided with a visual inspection station, which is located between the pre-tightening station and the valve body handling station. A visual inspection device 7 is provided at the visual inspection station, and the visual inspection device 7 includes an ejection mechanism 71, a first visual inspection mechanism 72 and a second visual inspection mechanism 73. The ejection mechanism 71 is used to eject the positioning cylinder 63 in the second positioning seat 62 so that the second visual inspection mechanism 73 can perform an appearance inspection on the valve stem 16 in the positioning cylinder 63. The first visual inspection mechanism 72 is used to perform an appearance inspection on the valve body 15 on the first positioning seat 61. The visual inspection device 7 takes over the manual routine inspection tasks, avoids the occurrence of false inspections and missed inspections in manual inspections, and not only improves the inspection accuracy, but also greatly improves the work efficiency.

[0045] There are two sets of ejection mechanisms 71 , each set of ejection mechanisms 71 corresponds to two positioning cylinders 63 , and the two sets of ejection mechanisms 71 are symmetrically arranged on the bracket of the workbench 1 .

[0046] Specifically, the ejection mechanism 71 includes a vertical telescopic cylinder arranged on a bracket and a ejection block arranged on the vertical telescopic cylinder; the first visual inspection mechanism 72 and the second visual inspection mechanism 73 both include a horizontal telescopic cylinder and a light source arranged on the workbench 1 through a bracket, and a visual camera arranged on the horizontal telescopic cylinder. The second visual inspection mechanism 73 performs an appearance inspection on the valve stem 16 from the side, and the first visual inspection mechanism 72 performs an appearance inspection on the valve body 15 from the top.

[0047] In order to ensure the cleanliness of the interior of the valve body 15, a valve body dust removal device 8 is also provided at the visual inspection station in this embodiment. The valve body dust removal device 8 includes a sealing mechanism 81 and a dust suction mechanism 82. The sealing mechanism 81 is used to seal the four valve stem mounting holes 150, and the dust suction mechanism 82 is used to connect with the main channel 151 to remove dust from the interior of the valve body 15.

[0048] In order to save space, the present embodiment arranges the blocking mechanism 81 and the ejection mechanism 71 on the same bracket. Specifically, the blocking mechanism 81 includes a vertical telescopic cylinder arranged on the bracket and a blocking box arranged on the vertical telescopic cylinder. Avoidance holes are respectively arranged at the positions of the turntable 21 corresponding to the first positioning seat 61 and the second positioning seat 62. The blocking box is used to block the avoidance holes corresponding to the first positioning seat 61, thereby achieving the blocking of the four valve stem mounting holes 150; the dust suction mechanism 82 includes a horizontal telescopic cylinder arranged on the workbench 1 through the bracket and a suction head arranged on the horizontal telescopic cylinder and connected to the vacuum cleaner, and the suction head is used to be connected to the main channel 151 of the valve body 15.

[0049] The workbench 1 in this embodiment is also provided with a height detection station. Along the conveying direction of the turntable conveyor 2, the height detection station is located downstream of the tightening station. A lifting and flipping device 9 and a height detector 10 are provided at the height detection station. The lifting and flipping device 9 includes a lifting drive 91 provided on the workbench 1 and a clamping and flipping mechanism 92 provided on the lifting drive 91. The clamping and flipping mechanism 92 is used to clamp the solenoid valve and flip the solenoid valve. The lifting drive 91 is used to drive the solenoid valve to move vertically to the detection position of the height detector 10. The height detector 10 is used to detect whether the assembly height of the solenoid valve is qualified. The lifting and flipping device 9 and the height detector 10 take over the manual routine detection tasks, avoid the occurrence of false detection and missed detection, not only improve the detection accuracy, but also greatly improve the work efficiency.

[0050] Specifically, the lifting drive 91 is preferably a pneumatic slide arranged on the workbench 1 through a bracket, and the clamping and flipping mechanism 92 includes a rotary cylinder arranged on the pneumatic slide and a pneumatic clamp arranged on the rotary cylinder. The pneumatic clamp is used to clamp the assembled solenoid valve, and the rotary cylinder is used to drive the clamped solenoid valve to flip 180°, and the pneumatic slide is used to drive the solenoid valve to move to the detection position of the height detector 10; the height detector 10 in this embodiment is preferably a laser 3D line scanning detector in the prior art. Of course, other height detection equipment can also be used, and the specific selection is based on actual needs. This embodiment does not limit this.

[0051] In this embodiment, a material unloading station is also provided on the workbench 1. The material unloading station is located downstream of the height detection station along the conveying direction of the turntable conveyor 2. Two material unloading and handling devices 11 are provided at the material unloading station. One of the material unloading and handling devices 11 is used to unload the solenoid valves that have passed the height detection, and the other material unloading and handling device 11 is used to unload the solenoid valves that have failed the height detection. By providing the material unloading and handling device 11, automatic unloading of the solenoid valve is achieved.

[0052] The unloading and handling device 11 in this embodiment includes a fourth movable module 111 arranged on the workbench 1 and a second clamping mechanism 112 arranged on the fourth movable module 111. The fourth movable module 111 is used to drive the second clamping mechanism 112 to move horizontally and vertically, and the second clamping mechanism 112 is used to clamp the solenoid valve to transport the solenoid valve to the qualified product conveyor 12 or the waste material box 13.

[0053] Specifically, the fourth movable module 111 includes a linear electric cylinder arranged on the workbench 1 through a bracket and a pneumatic cylinder arranged on the linear electric cylinder. The second clamping mechanism 112 includes a pneumatic clamp arranged on the pneumatic cylinder. The pneumatic clamp is used to clamp the solenoid valve, the linear electric cylinder is used to drive the clamped solenoid valve to move horizontally back and forth, and the pneumatic cylinder is used to drive the clamped solenoid valve to move vertically back and forth.

[0054] In this embodiment, a carrier dust removal station is also provided on the workbench 1, and along the conveying direction of the turntable conveyor 2, the carrier dust removal station is located downstream of the unloading station, and a carrier dust removal device 14 connected to a dust collector is provided at the carrier dust removal station, and the carrier dust removal device 14 is used to remove dust from the empty carrier 6. By providing the carrier dust removal device 14, automatic dust removal of the carrier 6 is achieved, and the cleanliness of the carrier 6 is ensured.

[0055] Specifically, the carrier dust removal device 14 includes a vertical telescopic cylinder set on the workbench 1 through a bracket and a dust hood set on the vertical telescopic cylinder and connected to the vacuum cleaner. The vertical telescopic cylinder is used to drive the dust hood to reciprocate vertically. The dust hood is set on the carrier 6 and removes dust from the carrier 6 under the action of the vacuum cleaner.

[0056] In this embodiment, a loading station is also provided on the workbench 1. The carrier 6 after dust removal by the carrier dust removal device 14 is rotated and transported to the loading station by the turntable conveyor device 2, and then the carrier 6 at the loading station is loaded by a robot. Then, the turntable conveyor device 2 rotates and transports the carrier 6 carrying the valve body 15 and the valve stem 16 to each station.

[0057] The following is the assembly process of the solenoid valve automatic assembly equipment of this embodiment:

[0058] At the loading station, the robot loads the carrier 6 at the loading station, and then the turntable conveying device 2 rotates and conveys the carrier 6 carrying the valve body 15 and the valve stem 16 to the pre-tightening station.

[0059] At the pre-tightening station, the valve stem 16 in the positioning cylinder 63 is elastically compressed by the valve stem elastic clamping mechanism 31, and the positioning cylinder 63 is screwed by the pre-tightening mechanism 32 to accurately position the valve stem 16 in the positioning cylinder 63, and then the turntable conveying device 2 rotates the carrier 6 carrying the valve body 15 and the valve stem 16 to the visual inspection station.

[0060] At the visual inspection station, the first visual inspection mechanism 72 performs an appearance inspection on the valve body 15 on the first positioning seat 61; the ejection mechanism 71 ejects the positioning cylinder 63 in the second positioning seat 62, and the second visual inspection mechanism 73 performs an appearance inspection on the valve stem 16 in the positioning cylinder 63. At this station, if both the valve body 15 and the valve stem 16 are qualified, the turntable conveyor 2 rotates the carrier 6 carrying both to the valve body handling station; if unqualified valve bodies 15 and / or valve stems 16 are detected, they are directly discharged by the robot (not shown in the figure), and the downstream process will no longer be carried out until the carrier 6 is rotated and transported to the loading station and then replenished by the robot for the next round of assembly process.

[0061] At the valve body transporting station, the first clamping mechanism 42, driven by the second movable module 41, transports the valve body 15 on the first positioning seat 61 to the second positioning seat 62, and then the turntable conveyor device 2 rotates and transports the carrier 6 carrying the valve body 15 and the valve stem 16 to the tightening station.

[0062] At the tightening station, the four sets of tightening devices 5 screw the corresponding valve stems 16 into the corresponding valve stem mounting holes 150 of the valve body 15 through the rotation and conveying of the turntable conveyor 2. When tightening, the valve body 15 on the second positioning seat 62 is pressed by the valve body clamping mechanism 51, and the positioning cylinder 63 is screwed by the tightening mechanism 52 to screw the valve stem 16 onto the valve body 15. After the four valve stems 16 and the valve body 15 are assembled into a solenoid valve, the turntable conveyor 2 rotates and conveys the carrier 6 carrying the solenoid valve to the height detection station.

[0063] At the height detection station, the solenoid valve is first clamped by the clamping and flipping mechanism 92 of the lifting and flipping device 9, and then the lifting and flipping driving member 91 of the lifting and flipping device 9 drives the clamping and flipping mechanism 92 and the clamped solenoid valve to move vertically to the detection position of the height detector 10, and then the clamping and flipping mechanism 92 flips the solenoid valve 180°, and then the height detector 10 detects whether the assembly height of the solenoid valve is qualified. After the detection is completed, the lifting and flipping device 9 puts the tested solenoid valve back on the carrier 6, and then the turntable conveyor 2 rotates the carrier 6 carrying the solenoid valve to the unloading station.

[0064] At the unloading station, through the rotation and conveying of the turntable conveyor 2, one unloading and conveying device 11 unloads the electromagnetic valves that have passed the height detection, and another unloading and conveying device 11 unloads the electromagnetic valves that have failed the height detection. When unloading, the second clamping mechanism 112, driven by the fourth moving module, transports the electromagnetic valves that have passed the height detection to the qualified product conveyor 12 or transports the electromagnetic valves that have failed the height detection to the waste material box 13. After unloading, the turntable conveyor 2 rotates and conveys the empty carrier 6 to the carrier dust removal station.

[0065] At the carrier dust removal station, the carrier 6 is dusted by the carrier dust removal device 14, and then the empty carrier 6 after dust removal is rotated and transported to the loading station by the turntable conveyor device 2.

[0066] The above is only one embodiment of the automatic assembly equipment for solenoid valves of the present invention, and there are more embodiments that will not be described in detail here. In summary, the automatic assembly equipment for solenoid valves of the present invention realizes automation, and can automatically assemble solenoid valves more quickly, stably and accurately, avoiding various assembly quality problems that occur during manual assembly, ensuring the assembly consistency of the solenoid valves, and improving the assembly qualification rate and assembly efficiency of the solenoid valves, thus meeting customer needs.

[0067] The present invention is not limited to the above-mentioned specific implementation modes. Various changes made by ordinary technicians in this field based on the above-mentioned concepts without creative work all fall within the protection scope of the present invention.

Claims

1. A solenoid valve automatic assembly equipment, characterized in that: It comprises a workbench and a turntable conveying device arranged on the workbench, wherein the workbench is provided with a pre-tightening station, a valve body transporting station and a tightening station in sequence along the conveying direction of the turntable conveying device, the pre-tightening station is provided with a pre-tightening device, the valve body transporting station is provided with a valve body transporting device, and the tightening station is provided with a tightening device; a carrier is provided on the turntable conveying device, and the turntable conveying device is used to rotate and transport the carrier to each station; The carrier includes a first positioning seat and a second positioning seat for positioning the valve body, and a positioning cylinder for positioning the valve stem is rotatably arranged in the second positioning seat; the pre-tightening device is used to elastically compress the valve stem in the positioning cylinder, and to screw the positioning cylinder so that the valve stem is accurately positioned in the positioning cylinder; the valve body conveying device is used to convey the valve body on the first positioning seat to the second positioning seat; the tightening device is used to compress the valve body on the second positioning seat, and to screw the positioning cylinder so that the valve stem in the positioning cylinder is screwed onto the valve body so that the two are assembled into a solenoid valve.

2. The automatic assembly equipment for solenoid valves according to claim 1, characterized in that: The pre-tightening device includes a valve stem elastic clamping mechanism and a pre-tightening mechanism, the valve stem elastic clamping mechanism is used to elastically press down the valve stem; the pre-tightening mechanism includes a first movable module arranged on the workbench and a first electric screwing tool arranged on the first movable module, the first movable module is used to drive the first electric screwing tool to move horizontally and vertically, and the first electric screwing tool is used to screw the positioning cylinder.

3. The automatic assembly equipment for solenoid valves according to claim 1, characterized in that: The valve body handling device includes a second movable module arranged on the workbench and a first clamping mechanism arranged on the second movable module, the second movable module is used to drive the first clamping mechanism to move horizontally and vertically, and the first clamping mechanism is used to clamp the valve body.

4. The automatic assembly equipment for solenoid valves according to claim 1, characterized in that: The tightening device includes a valve body clamping mechanism and a tightening mechanism, the valve body clamping mechanism is used to press down the valve body; the tightening mechanism includes a third movable module arranged on the workbench and a second electric screwing tool arranged on the third movable module, the third movable module is used to drive the second electric screwing tool to vertically reciprocate linear motion, and the second electric screwing tool is used to screw the positioning cylinder.

5. The automatic assembly equipment for solenoid valves according to claim 1, characterized in that: A visual inspection station is also provided on the workbench, and the visual inspection station is located between the pre-tightening station and the valve body transporting station. A visual inspection device is provided at the visual inspection station, and the visual inspection device includes an ejection mechanism, a first visual inspection mechanism, and a second visual inspection mechanism. The ejection mechanism is used to eject the positioning cylinder in the second positioning seat so that the second visual inspection mechanism can perform an appearance inspection on the valve stem in the positioning cylinder, and the first visual inspection mechanism is used to perform an appearance inspection on the valve body on the first positioning seat.

6. The automatic assembly equipment for solenoid valves according to claim 5, characterized in that: A valve body dust removal device is also provided at the visual inspection station, and the valve body dust removal device includes a sealing mechanism and a dust suction mechanism. The valve body has a main channel and a branch channel connected to the main channel. The branch channel is provided with a valve stem mounting hole connecting the branch channel and the outside world. The sealing mechanism is used to seal the valve stem mounting hole, and the dust suction mechanism is used to be connected to the main channel to remove dust from the interior of the valve body.

7. The automatic assembly equipment for solenoid valves according to claim 1, characterized in that: A height detection station is also provided on the workbench. Along the conveying direction of the turntable conveyor, the height detection station is located downstream of the tightening station. A lifting and turning device and a height detector are provided at the height detection station. The lifting and turning device includes a lifting drive component provided on the workbench and a clamping and turning mechanism provided on the lifting drive component. The clamping and turning mechanism is used to clamp the solenoid valve and turn the solenoid valve. The lifting drive component is used to drive the solenoid valve to move vertically to the detection position of the height detector. The height detector is used to detect whether the assembly height of the solenoid valve is qualified.

8. The automatic assembly equipment for solenoid valves according to claim 7, characterized in that: The workbench is also provided with a material unloading station, which is located downstream of the height detection station along the conveying direction of the turntable conveyor device. Two material unloading and conveying devices are provided at the material unloading station, one of which is used to transport and unload the solenoid valve that has passed the height detection, and the other material unloading and conveying device is used to transport and unload the solenoid valve that has failed the height detection.

9. The automatic assembly equipment for solenoid valves according to claim 8, characterized in that: The unloading and handling device includes a fourth movable module arranged on the workbench and a second clamping mechanism arranged on the fourth movable module, the fourth movable module is used to drive the second clamping mechanism to move horizontally and vertically, and the second clamping mechanism is used to clamp the solenoid valve to transport the solenoid valve to a qualified product conveyor or a waste material box.

10. The automatic assembly equipment for solenoid valves according to claim 8, characterized in that: A carrier dust removal station is also provided on the workbench. Along the conveying direction of the turntable conveyor, the carrier dust removal station is located downstream of the unloading station. A carrier dust removal device connected to a vacuum cleaner is provided at the carrier dust removal station. The carrier dust removal device is used to remove dust from the empty carrier.

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