Flat valve plate assembly apparatus

Abstract

The application discloses a kind of flat valve plate assembly equipment, including carousel, a circle of carousel hole is arranged on the circumference of carousel, lower jig plate is set on the first guide column of each carousel hole, second guide column is arranged on lower jig plate, the circumference of carousel has valve plate feeding machine, valve piece feeding machine, valve piece detection machine, limiting piece feeding machine, rivet feeding machine, rivet detection machine, rivet press, air tightness detection machine, unloading transfer manipulator in sequence, the center position of carousel is fixed with upper jig plate manipulator, to grab upper jig plate and move load to the valve plate on the lower jig plate of valve plate feeding machine, limiting hole matched with valve plate groove is arranged on upper jig plate.The application integrates valve plate feeding, valve piece feeding, valve piece detection, limiting piece feeding, rivet feeding, rivet detection, rivet press, air tightness detection, finished product unloading, improves the assembly efficiency of flat valve plate, carousel design, small footprint, through the cooperation of upper jig plate and lower jig plate, to improve the accuracy of assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of valve plate assembly, in particular to a flat valve plate assembly equipment. BACKGROUND

[0002] The flat valve plate 1300 includes a valve plate 1310, a valve piece 1320, and a limiting piece 1330. The valve plate 1310 is provided with a valve plate groove 1311. The valve piece 1320 is installed in the valve plate groove 1311. The limiting piece 1330 is installed to limit the valve piece 1320 in the valve plate groove 1311. The three are riveted by a rivet 1340. At present, there are related valve plate assembly equipment on the market. For example, in the invention patent application with the publication number CN114012423A disclosed on February 8, 2022, a valve plate assembly machine is disclosed, which can complete the automatic assembly of the valve piece and the limiting plate on the valve plate. However, there is no riveting operation of the valve plate, the valve piece, and the limiting piece. The riveting operation needs to be performed on another riveting equipment, which increases the processing time and reduces the production efficiency. In addition, since the assembly equipment does not adopt a rotary disc structure, directly adding a riveting equipment will make the whole equipment longer and increase the floor area. SUMMARY

[0003] To overcome the above-mentioned shortcomings, the purpose of the present application is to provide a flat valve plate assembly equipment which can rivet and assemble the valve plate, the valve piece, and the limiting piece, improve the production efficiency, and reduce the floor area.

[0004] To achieve the above purpose, the technical scheme adopted by the present application is as follows: a flat valve plate assembly equipment, comprising:

[0005] A rotary disc is provided with a circle of rotary disc holes on the circumference. A first guide column is arranged on each rotary disc hole. A lower jig plate is sleeved on the first guide column. A jig through hole is arranged on the lower jig plate. A second guide column is arranged on the lower jig plate to position the valve plate and an upper jig plate. The circumference of the rotary disc has:

[0006] A valve plate feeding machine is connected with the rotary disc through a valve plate transfer manipulator;

[0007] A valve piece feeding machine is connected with the rotary disc through a valve piece transfer manipulator. A lifting cylinder is arranged on the valve piece transfer manipulator. The lifting cylinder acts on a lifting rod to bend the valve piece adsorbed by the valve piece transfer manipulator;

[0008] A valve piece detection machine includes a valve piece height detection sensor and a valve plate height detection sensor driven and lifted by a first detection cylinder. The height difference is calculated to determine whether it is a valve piece.

[0009] The limiting sheet loading machine comprises a limiting sheet vibrating disc and a limiting sheet transfer manipulator, the limiting sheet transfer manipulator is used to transfer the limiting sheet discharged from the limiting sheet vibrating disc to the rotating disc;

[0010] The rivet loading machine is connected with the rivet vibrating disc through a connecting pipeline.

[0011] The rivet detection machine comprises a rivet height displacement sensor driven to lift by a second detection cylinder and a valve plate height displacement sensor, and whether there is a rivet is determined by using the calculated height difference.

[0012] The rivet pressing machine is used to press rivets on valve plates, valve pieces and limiting sheets.

[0013] The upper jig plate manipulator is fixed at the center position of the rotating disc, is used to grab the upper jig plate and transfer the upper jig plate to the valve plate on the lower jig plate of the valve plate loading machine, the upper jig plate is provided with limiting holes matched with valve plate grooves, and is used to position the valve pieces and the limiting sheets.

[0014] The air tightness detection machine is used to detect the pressed valve plate.

[0015] The lower transfer manipulator is used to transfer the qualified products on the rotating disc to the qualified product collecting machine or transfer the unqualified products to the unqualified product collecting groove.

[0016] The flat valve plate assembling equipment has the advantages that the valve plate loading, valve piece loading, valve piece detection, limiting sheet loading, rivet loading, rivet detection, rivet pressing, air tightness detection and product lower loading operations of the equipment improve the assembling efficiency of the flat valve plate, the rotating disc type design occupies a small area, and the cooperation of the upper jig plate and the lower jig plate provides positioning for the loading of the valve pieces and the limiting sheets, so that the assembling accuracy is improved.

[0017] Preferably, the valve plate loading machine comprises two oppositely arranged valve plate storage bins, the two valve plate storage bins are driven by a first rotating cylinder, and any one of the valve plate storage bins can be rotated to the outside of the rotating disc, the bottom of each valve plate storage bin is provided with a notch, a jacking block is arranged below the notch close to the rotating disc, the jacking block is driven to lift by a lead screw jacking motor, and the valve plates in the valve plate storage bins are jacked one by one to the uppermost position for being grabbed by the valve plate transfer manipulator.

[0018] After the above technical scheme is adopted, the two valve plate storage bins are arranged to realize replacement feeding, so that the valve plates can be continuously fed to the valve plate loading station of the rotating disc, and the assembling efficiency is improved.

[0019] Preferably, the valve piece loading machine comprises a valve piece storage bin, a pushing block and a pushing driving source, the valve pieces are stacked in the valve piece storage bin, the pushing block is located below the valve piece storage bin, and the pushing driving source can drive the pushing block to move upwards to the valve piece storage bin to jack the valve pieces to the uppermost position of the valve piece storage bin.

[0020] Preferably, the rivet feeding machine comprises:

[0021] A support plate driven to lift by an upper air cylinder;

[0022] A rivet feeding pipe fixed on the support plate, the rivet feeding pipe having two oppositely arranged open rivet channels, the upper ends of the two open rivet channels being connected to the discharge ports of two rivet vibrating discs through two connecting channels respectively, the height of each open rivet channel being able to accommodate only one rivet;

[0023] Two elastic clamping jaws, the upper ends of the two elastic clamping jaws being fixed on the support plate respectively, the two elastic clamping jaws being located at the open ends of the open rivet channels, the outer sides of the two elastic clamping jaws being inclined surfaces;

[0024] A lifting plate slidingly arranged below the support plate, the lifting plate being provided with a clamping jaw through hole, the clamping jaw through hole being for the elastic clamping jaws and the rivet feeding pipe to pass through, the lifting plate being driven to lift by a lifting air cylinder, the clamping jaw through hole being lifted on the inclined surface, thereby forcing the two elastic clamping jaws to clamp or release the two rivets at the pipe openings of the rivet feeding pipe;

[0025] A blocking baffle between the connecting channels and the rivet feeding pipe, the blocking baffle being horizontally slidable driven by a blocking air cylinder, thereby opening or closing the rivet feeding pipe;

[0026] A positioning seat below the rotating disc, the positioning seat being provided with two positioning pins, the positioning seat being driven to lift by a lower air cylinder and being able to pass through the jig through hole.

[0027] After the above technical scheme is adopted, when the rivet feeding machine is operated, the two positioning pins of the positioning seat are positioned to the two riveting holes on the valve plate, the two riveting holes on the valve plate, and the two riveting holes on the limiting plate, and accurate positioning can be achieved.

[0028] Preferably, the rivet press comprises an upper die seat, a lower die seat, and a rivet head, the rivet head being fixed on the lower die seat, the upper die seat and the rivet head being located above and below the rotating disc respectively, the rivet head being driven to lift by a rivet air cylinder and acting on the lower jig plate and the flat valve plate assembly on the lower jig plate to move to the upper die seat for riveting. Riveting is performed on the upper die seat instead of on the rotating disc, thereby protecting the rotating disc from tilting to one side due to excessive pressure during riveting.

[0029] Preferably, a rivet detection machine is arranged between the rivet press and the air tightness detection machine, the rivet detection machine comprising a displacement sensor, the displacement sensor being driven to lift by a fourth detection air cylinder. The displacement sensor detects whether the flat valve plate after riveting is rotated to a predetermined position, thereby ensuring the accuracy of the upper jig plate gripper grabbing the upper jig plate.

[0030] Preferably, the upper jig plate mechanical arm comprises:

[0031] a second rotary cylinder fixed on the center of the upper surface of the rotary disc;

[0032] a connecting rod above and parallel to the rotary disc, the connecting rod being driven to rotate by the second rotary cylinder;

[0033] an upper jig plate moving mechanical arm fixed on the free end of the connecting rod;

[0034] a carrier slot arranged below the upper jig plate moving mechanical arm, above and parallel to the rotary disc, the size of the upper jig plate being larger than that of the valve plate, a gap being left between the upper jig plate and the lower jig plate, the upper jig plate moving mechanical arm being able to drive the carrier slot to move along the gap, and the upper jig plate limited by the second guide column being able to be inserted into the carrier slot. The carrier slot provides positioning for the upper jig plate to ensure the accuracy of the upper jig plate placed on the second guide column of the valve plate loading station.

[0035] Preferably, the air tightness detection machine comprises an upper detection seat and a lower detection seat arranged above and below the rotary disc, the lower detection seat being driven to lift by a third detection cylinder and being able to pass through the jig through hole, the lower detection seat being able to drive the lower jig plate and the flat valve plate thereon to move towards the upper detection seat and tightly fit to form an air tightness detection chamber.

[0036] Preferably, the valve plate moving mechanical arm, the valve piece moving mechanical arm, the limiting piece moving mechanical arm, the upper jig plate moving mechanical arm and the unloading moving mechanical arm all adopt vacuum suction mode and are able to lift and translate, the direction of the translation being the direction of approaching or moving away from the center of the rotary disc. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is a perspective view of the embodiment;

[0038] Figure 2 is a top view of the embodiment;

[0039] Figure 3 is a perspective view of the valve plate loading machine cooperating with the rotary disc of the embodiment;

[0040] Figure 4 is Figure 3 is a local enlarged view of A in the middle;

[0041] Figure 5 is a perspective view of the valve piece loading machine, the valve piece detection machine and the limiting piece loading machine cooperating with the rotary disc of the embodiment;

[0042] Figure 6 is a perspective view of the valve piece loading machine of the embodiment;

[0043] Figure 7 Figure 9 is a perspective view of the valve plate feeding machine part of the present embodiment;

[0044] Figure 8 Figure 10 is a perspective view of the first angle of cooperation between the rivet feeding machine, rivet detection machine, rivet press, rivet press detection machine and the turntable of the present embodiment;

[0045] Figure 9 Figure 11 is a perspective view of the second angle of cooperation between the rivet feeding machine, rivet detection machine, rivet press, rivet press detection machine and the turntable of the present embodiment;

[0046] Figure 10 Figure 12 is a perspective view of the rivet feeding machine part of the present embodiment;

[0047] Figure 11 Figure 13 is a perspective view of the upper jig plate mechanical arm of the present embodiment;

[0048] Figure 12 Figure 14 is a perspective view of the air tightness detection machine and the lower jig plate mechanical arm of the present embodiment.

[0049] In the drawings:

[0050] 100, turntable; 110, turntable hole; 120, first guide column; 130, lower jig plate; 131, jig through hole; 132, second guide column; 140, upper jig plate; 141, limiting hole; 150, gap;

[0051] 200, valve plate feeding machine; 210, valve plate moving mechanical arm; 220, valve plate stock bin; 221, notch; 230, first rotary air cylinder; 240, jacking block; 250, screw jacking motor; 251, screw; 252, longitudinal guide rod;

[0052] 300, valve plate feeding machine; 310, valve plate moving mechanical arm; 320, jacking air cylinder; 321, jacking rod; 330, valve plate stock bin; 340, pushing block; 350, pushing driving source;

[0053] 400, valve plate detection machine; 410, valve plate height detection sensor; 420, valve plate height detection sensor; 430, first detection air cylinder;

[0054] 500, limiting piece feeding machine; 510, limiting piece vibrating disc; 520, limiting piece moving mechanical arm;

[0055] 600, rivet feeding machine; 610, support plate; 620, upper air cylinder; 630, rivet feeding pipe; 631, open rivet pipe; 640, elastic clamping jaw; 641, inclined surface; 650, lifting plate; 651, clamping jaw through hole; 660, blocking baffle; 661, blocking air cylinder; 670, positioning seat; 671, positioning needle; 672, lower air cylinder;

[0056] 700, rivet detection machine; 710, second detection cylinder; 720, rivet height displacement sensor; 730, valve plate height displacement sensor;

[0057] 800, rivet press; 810, upper die holder; 820, lower die holder; 830, rivet pressing cylinder;

[0058] 900, upper jig plate manipulator; 910, second rotary cylinder; 920, connecting rod; 930, upper jig plate transfer manipulator; 940, carrier slot;

[0059] 1000, air tightness detection machine; 1010, upper detection seat; 1020, lower detection seat; 1030, third detection cylinder;

[0060] 1100, blank transfer manipulator; 1110, good product collecting machine; 1120, substandard product collecting tank;

[0061] 1200, rivet pressing detection machine; 1210, displacement sensor; 1220, fourth detection cylinder;

[0062] 1300, flat valve plate; 1310, valve plate; 1320, valve piece; 1330, limiting piece; 1340, rivet. DETAILED DESCRIPTION

[0063] The advantages and features of the present application will be more easily understood by those skilled in the art through the following detailed description of the preferred embodiments of the present application, with reference to the accompanying drawings, so that the scope of protection of the present application can be more clearly and definitely defined.

[0064] Referring to Figures 1-12 the present embodiment, a flat valve plate assembly device comprises:

[0065] The rotary disc 100 is provided with a rotary disc hole 110 on the circumference of the rotary disc 100, a first guide column 120 is arranged on each rotary disc hole 110, a lower jig plate 130 is sleeved on the first guide column 120, a jig through hole 131 is arranged on the lower jig plate 130, a second guide column 132 for positioning the valve plate 1310 and the upper jig plate 140 is arranged on the lower jig plate 130, the rotary disc 100 is distributed with a valve plate feeding station, a valve piece feeding station, a valve piece detection station, a limiting piece feeding station, a rivet feeding station, a rivet detection station, a rivet pressing station, an upper jig plate taking station, a gas tightness detection station and a discharging station, the valve plate feeding machine 200, the valve piece feeding machine 300, the valve piece detection machine 400, the limiting piece feeding machine 500, the rivet feeding machine 600, the rivet detection machine 700, the rivet pressing machine 800, the upper jig plate manipulator 900, the gas tightness detection machine 1000 and the discharging transfer manipulator 1100 are sequentially distributed in the valve plate feeding station, the valve piece feeding station, the valve piece detection station, the limiting piece feeding station, the rivet feeding station, the rivet detection station, the rivet pressing station, the upper jig plate taking station, the gas tightness detection station and the discharging station, and the rotary disc 100 is sequentially provided with:

[0066] The valve plate feeding machine 200 is connected with the rotary disc 100 through a valve plate transfer manipulator 210;

[0067] The valve piece feeding machine 300 is connected with the rotary disc 100 through a valve piece transfer manipulator 310, a top material air cylinder 320 is arranged on the valve piece transfer manipulator 310, the top material air cylinder 320 acts on a top material rod 321 to lift, and can act on the valve piece 1320 adsorbed by the valve piece transfer manipulator 310 to bend;

[0068] The valve piece detection machine 400 includes a valve piece height detection sensor 410 and a valve plate height detection sensor 420 driven to lift by a first detection air cylinder 430, and a height difference is calculated to determine whether it is a valve piece 1320;

[0069] The limiting piece feeding machine 500 includes a limiting piece vibrating disc 510 and a limiting piece transfer manipulator 520, and the limiting piece transfer manipulator 520 is used to transfer the limiting piece 1330 discharged from the limiting piece vibrating disc 510 to the rotary disc 100;

[0070] The rivet feeding machine 600 is connected with a rivet vibrating disc through a connecting pipeline;

[0071] The rivet detection machine 700 includes a rivet height displacement sensor 720 and a valve plate height displacement sensor 730 driven to lift by a second detection air cylinder 710, and a height difference is calculated to determine whether there is a rivet 1340;

[0072] The rivet pressing machine 800 is used to press the rivet 1340 on the valve plate 1310, the valve piece 1320 and the limiting piece 1330;

[0073] The upper jig plate mechanical arm 900 is fixed at the center of the rotating disc 100, and is used to grab the upper jig plate 140 and move it to the valve plate 1310 on the lower jig plate 130 at the valve plate feeding machine 200. The upper jig plate 140 is provided with a limiting hole 141 matched with the valve plate groove 1311;

[0074] The air tightness detection machine 1000 is used to detect the flat valve plate 1300 after the riveting;

[0075] The lower material moving mechanical arm 1100 moves the good products on the rotating disc 100 to the good product collecting machine 1110, or moves the defective products to the defective product collecting groove 1120.

[0076] The number of rotary disc holes 110 on the rotary disc 100 is consistent with the number of stations, and each rotary disc hole 110 of the rotary disc 100 is installed with a lower jig plate 130. The working principle of the embodiment is that the lower jig plate 130 is rotated to the valve plate feeding station by rotating the rotary disc 100, the valve plate feeding machine 200 feeds the valve plate 1310 to the second guide column 132 of the lower jig plate 130, then the upper jig plate manipulator 900 moves the upper jig plate 140 at the upper jig plate feeding station to the valve plate feeding station, along the second guide column 132, and places the upper jig plate 140 above the valve plate 1310, and the limiting hole 141 on the upper jig plate 140 positions the valve piece 1320 and the limiting piece 1330; the rotary disc 100 rotates the lower jig plate 130 to the valve piece feeding station, and moves the valve piece 1320 into the limiting hole 141; the rotary disc 100 rotates the lower jig plate 130 to the valve piece detection station, and detects whether only one valve piece 1320 is installed; the rotary disc 100 rotates the lower jig plate 130 to the limiting piece feeding station, and moves the limiting piece 1330 to the valve piece 1320 in the limiting hole 141; the rotary disc 100 rotates the lower jig plate 130 to the rivet feeding station, and feeds two rivets 1340 into the corresponding riveting holes of the limiting piece 1330, the valve piece 1320, and the valve plate 1310; the rotary disc 100 rotates the lower jig plate 130 to the rivet detection station, and performs riveting on the valve plate 1310, the valve piece 1320, and the limiting piece 1330; the rotary disc 100 rotates the lower jig plate 130 to the upper jig plate feeding station, and uses the upper jig plate manipulator 900 to cyclically move the upper jig plate 140 above the valve plate 1310 at the valve plate feeding station, and the upper jig plate 140 is cyclically moved; the rotary disc 100 rotates the lower jig plate 130 to the air tightness detection station, and the air tightness detection machine 1000 performs air tightness detection on the riveted flat valve plate 1300; the rotary disc 100 rotates the lower jig plate 130 to the discharging station, and the discharging and moving manipulator 1100 moves the detected flat valve plate 1300 to the good product collecting machine 1110, or moves the defective product to the defective product collecting groove 1120, and the assembly of the flat valve plate 1300 is completed, the assembly efficiency of the flat valve plate 1300 is improved, and the rotary disc 100 design occupies a small area, and the cooperation of the upper and lower jig plates 130 provides positioning for the feeding of the valve piece 1320 and the limiting piece 1330, thereby improving the assembly accuracy.

[0077] The valve plate feeding machine 200 in the embodiment includes two valve plate hoppers 220 arranged oppositely, the two valve plate hoppers 220 are driven by a first rotary cylinder 230, and any one of the valve plate hoppers 220 can be rotated to the outside of the turntable 100. The bottom of each valve plate hopper 220 is provided with a notch 221, and a jacking block 240 is arranged below the notch 221 close to the turntable 100. The jacking block 240 is driven to rise and fall by a screw jacking motor 250, and the valve plates 1310 in the valve plate hopper 220 are jacked one by one to the uppermost position for the valve plate transfer manipulator 210 to grab. The two valve plate hoppers 220 are arranged to realize replacement feeding and ensure that the valve plates 1310 can be continuously fed to the valve plate feeding station of the turntable 100 to improve the assembly efficiency. When feeding, one of the valve plate hoppers 220 is close to the valve plate feeding station of the turntable 100, the screw jacking motor 250 is started to drive the screw rod 251 to rotate, the jacking block 240 is sleeved on the screw rod 251 and is in threaded connection with the screw rod 251, the jacking block 240 is sleeved on the longitudinal guide rod 252 and is guided by the longitudinal guide rod 252. When the screw rod 251 rotates, the jacking block 240 is forced to move upward along the longitudinal guide rod, and the stacked valve plates 1310 at the bottom of the notch 221 of the valve plate hopper 220 are continuously driven to move upward. The valve plate transfer manipulator 210 moves the uppermost valve plate 1310 to the second guide column 132 of the lower jig plate 130 of the valve plate feeding station. When the uppermost valve plate 1310 is transferred to the lower jig plate 130, the screw jacking motor 250 is started again to drive the jacking block 240 to move the valve plates 1310 in the valve plate hopper 220 upward by one valve plate 1310 height, until all the valve plates 1310 in the first valve plate hopper 220 are transferred, the first rotary cylinder 230 is driven to rotate the second valve plate hopper 220 to the outside of the turntable 100, and the valve plates 1310 continue to be fed to the turntable 100.

[0078] The valve plate feeding machine in the embodiment includes a valve plate hopper 330, a pushing block 340 and a pushing driving source 350. The valve plates 1320 are stacked in the valve plate hopper 330. The pushing block 340 is located below the valve plate hopper 330. The pushing driving source 350 can drive the pushing block 340 to move upward into the valve plate hopper 330 to jack the valve plates 1320 to the uppermost position of the valve plate hopper 330.

[0079] The rivet feeding machine 600 in the embodiment includes:

[0080] A support plate 610 driven to rise and fall by an upper cylinder 620;

[0081] A rivet feeding pipe 630 fixed on the support plate 610. The rivet feeding pipe 630 has two oppositely arranged open rivet channels 631. The upper ends of the two open rivet channels 631 are connected with the discharge ports of two rivet vibration discs through two connecting channels respectively. The height of each open rivet channel 631 can only accommodate the height of one rivet 1340.

[0082] Two elastic clamping jaws 640, the upper end of which is fixed on the support plate 610 respectively, are located at the open end of the open rivet pipeline 631, and the outer side of the two elastic clamping jaws 640 is an inclined surface 641;

[0083] A lifting plate 650 is slidingly arranged below the support plate 610, the lifting plate 650 is provided with a clamping jaw through hole 651 for the elastic clamping jaw 640 and the rivet feeding pipeline 630 to pass through, the lifting plate 650 is driven to lift by a lifting cylinder 651, the clamping jaw through hole 651 is lifted on the inclined surface 641, thereby forcing the two elastic clamping jaws 640 to clamp or release the two rivets 1340 at the pipe opening of the rivet feeding pipeline 630;

[0084] A blocking baffle 660 is located between the connecting pipeline and the rivet feeding pipeline 630, the blocking baffle 660 is driven to slide horizontally by a blocking cylinder 661, thereby opening or closing the rivet feeding pipeline 630;

[0085] A positioning seat 670 is located below the rotating disc 100, the positioning seat 670 is provided with two positioning pins 671, the positioning seat 670 is driven to lift by a lower cylinder 672, and can pass through the jig through hole 131.

[0086] When the rivet feeding machine 600 is working, the two positioning pins 671 of the positioning seat 670 are driven by the lower cylinder 672, first inserted from below the valve plate 1310, and then positioned the two riveting holes on the valve plate 1310, the two riveting holes on the valve piece 1320 and the two riveting holes on the limiting piece 1330, then the positioning seat 670 is driven to move downward by the lower cylinder 672; in the positioning process of the positioning pin 671, each of the two open rivet pipelines 631 stores one rivet 1340 to be riveted, and the lifting plate 650 moves to the state that the two elastic clamping jaws 640 clamp the two rivets 1340 respectively; after positioning, the lifting plate 650 is driven to move upward along the inclined surface 641 by the lifting cylinder 651, until the two elastic clamping jaws 640 release the two rivets 1340, and the two rivets 1340 fall into the two rivet holes to be pressed, thereby completing the feeding of the two rivets 1340. The blocking baffle 660 ensures that each of the two open rivet pipelines 631 stores only one rivet 1340 to be riveted, and the positioning pin 671 is provided to ensure that the valve plate 1300 assembly (the valve plate 1310, the valve piece 1320 and the limiting piece 1330) can be accurately positioned.

[0087] The press riveting machine 800 of the embodiment includes an upper die seat 810, a lower die seat 820 and a press riveting head, the press riveting head is fixed on the lower die seat 820, the upper die seat 810 and the press riveting head are located above and below the rotating disc 100 respectively, the press riveting head is driven to lift by a press riveting cylinder 830, and acts on the lower jig plate 130 and the valve plate 1300 assembly on the lower jig plate 130 to move upward to the upper die seat 810 to perform press riveting.

[0088] The lower die seat 820 is driven to rise by the press-in air cylinder 830, and then the press-in head is moved up to press in on the upper die seat 810, instead of on the turntable 100, so as to protect the turntable 100 from being tilted to one side due to excessive pressure in the press-in process.

[0089] The press-in detection machine 1200 is arranged between the press-in machine 800 and the air tightness detection machine 1000, and the press-in detection machine 1200 comprises a displacement sensor 1210 driven to rise and fall by a fourth detection air cylinder 1220.

[0090] The press-in detection machine 1200 is located at the upper jig plate material taking station, and before the lower material moving and carrying manipulator 1100 grabs the upper jig plate 140, the displacement sensor 1210 can detect whether the flat valve plate 1300 after being pressed in is rotated to the predetermined position, so as to ensure the accuracy of the upper jig plate manipulator 900 grabbing the upper jig plate 140.

[0091] The upper jig plate manipulator 900 of the embodiment comprises:

[0092] A second rotary air cylinder 910 is fixed on the center of the upper surface of the turntable 100;

[0093] A connecting rod 920 is located above and parallel to the turntable 100, and the connecting rod 920 is driven to rotate by the second rotary air cylinder 910;

[0094] An upper jig plate moving and carrying manipulator 930 is fixed on the free end of the connecting rod 920;

[0095] A carrier slot 940 is arranged below the upper jig plate moving and carrying manipulator 930, above and parallel to the turntable 100, the size of the upper jig plate 140 is greater than that of the valve plate 1310, and a gap 150 is left between the upper jig plate 140 and the lower jig plate 130, and the upper jig plate 140 limited by the second guide column 132 can be inserted into the carrier slot 940.

[0096] The upper jig plate 140 is located above the valve plate 1310, and the size of the upper jig plate 140 is greater than that of the valve plate 1310, so that a gap 150 is left between the upper jig plate 140 and the lower jig plate 130, and the gap 150 can just allow the carrier slot 940 to translate until the upper jig plate 140 is completely located in the carrier slot 940, and the upper jig plate moving and carrying manipulator 930 vacuum adsorbs the upper jig, and the carrier slot 940 provides positioning for the upper jig plate 140, so as to ensure the accuracy of the upper jig plate 140 being placed on the second guide column 132 of the valve plate material station.

[0097] The air tightness detection machine 1000 of the embodiment includes an upper detection seat 1010 and a lower detection seat 1020 located above and below the rotating disc 100. The lower detection seat 1020 is driven to lift by a third detection air cylinder 1030 and can pass through the jig through hole 131. The lower detection seat 1020 can drive the lower jig plate 130 and the flat valve plate 1300 thereon to move towards the upper detection seat 1010 and tightly adhere to form an air tightness detection chamber. The assembled flat valve plate 1300 is detected by the compressed gas with a certain air pressure to determine whether it has a leakage.

[0098] The valve plate transfer robot 210, the valve piece transfer robot 310, the limiting piece transfer robot 520, the upper jig plate transfer robot 930 and the blank transfer robot 1100 of the embodiment all adopt a vacuum suction adsorption mode and can lift and translate. The direction of translation is the direction of approaching or moving away from the center of the rotating disc 100.

[0099] The above embodiments are only for illustrating the technical concept and characteristics of the present application, the purpose is to let the person skilled in the art understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A valve plate assembly device, characterized in that: include: A turntable, the turntable having a ring of holes around its circumference, each of the holes having a first guide post, a lower fixture plate fitted onto the first guide post, the lower fixture plate having a fixture through hole, and a second guide post for positioning a valve plate and an upper fixture plate. The circumference of the turntable has, in sequence: The valve plate loading machine is connected to the turntable via a valve plate transfer robot. The valve plate feeding machine is connected to the turntable via a valve plate transfer robot. The valve plate transfer robot is equipped with a top material cylinder. The top material cylinder raises and lowers the top material rod, which can bend the valve plate attracted by the valve plate transfer robot. The valve plate testing machine includes a valve plate height detection sensor and a valve plate height detection sensor that are driven to rise and fall by a first detection cylinder. The calculated height difference is used to determine whether it is a valve plate. A limit piece feeding machine includes a limit piece vibratory plate and a limit piece transfer robot, wherein the limit piece transfer robot is used to transfer the limit pieces discharged from the limit piece vibratory plate to the turntable; The rivet feeding machine is connected to a rivet vibratory feeder via a connecting pipe. The rivet inspection machine includes a rivet height displacement sensor and a valve plate height displacement sensor that are driven to rise and fall by a second detection cylinder. It uses the calculated height difference to determine whether there is a rivet. A riveting machine is used to press rivets onto valve plates, valve discs, and limit plates. The upper fixture plate robot is fixed at the center of the turntable and is used to grab the upper fixture plate and transfer it to the valve plate on the lower fixture plate at the valve plate loading machine. The upper fixture plate is provided with limiting holes that match the valve plate groove. An airtightness testing machine is used to test flat valve plates after they have been pressed and riveted. The unloading and transfer robot transfers good products from the turntable to the good product receiving machine, or transfers defective products to the defective product receiving trough. The rivet feeding machine includes: The support plate is raised and lowered by an upper cylinder; A rivet feeding tube is fixed on a support plate. The rivet feeding tube has two open rivet pipes arranged opposite each other. The upper ends of the two open rivet pipes are respectively connected to the discharge ports of two rivet vibrating plates through two connecting pipes. The height of each open rivet pipe can only accommodate the height of one rivet. Two elastic grippers, the upper ends of which are fixed to the support plate respectively, are located at the opening of the open rivet pipe, and the outer surfaces of the two elastic grippers are inclined surfaces. A lifting plate is slidably disposed below the support plate. The lifting plate is provided with a gripper through hole for the elastic gripper and the rivet feeding tube to pass through. The lifting plate is driven to rise and fall by a lifting cylinder. The gripper through hole rises and falls on the inclined surface, thereby forcing the two elastic grippers to clamp or loosen the two rivets at the opening of the rivet feeding tube. A baffle is located between the connecting pipe and the rivet feeding pipe. The baffle is driven by a baffle cylinder and can slide horizontally, thereby opening or closing the rivet feeding pipe. A positioning seat is located below the turntable. The positioning seat is equipped with two positioning pins. The positioning seat is driven to rise and fall by a lower cylinder and can pass through the through hole of the fixture. A riveting tester is provided between the riveting machine and the airtightness tester. The riveting tester includes a displacement sensor, which is driven to move up and down by a fourth test cylinder. The upper fixture plate robot includes: The second rotary cylinder is fixed at the center of the upper surface of the turntable; The airtightness testing machine includes an upper testing seat and a lower testing seat located above and below the turntable.

2. The valve plate assembly equipment according to claim 1, characterized in that: The valve plate loading machine includes two valve plate bins arranged opposite each other. The two valve plate bins are driven by a first rotary cylinder. Either valve plate bin can rotate to the outside of the turntable. Each valve plate bin has a notch at the bottom. A lifting block is provided below the notch of the turntable. The lifting block is driven to rise and fall by a screw lifting motor, lifting the valve plates in the valve plate bins one by one to the top for the valve plate transfer robot to grasp.

3. The valve plate assembly equipment according to claim 1, characterized in that: The valve plate feeder includes a valve plate hopper, a pusher block, and a pusher drive source. Valve plates are stacked in the valve plate hopper. The pusher block is located below the valve plate hopper. The pusher drive source can drive the pusher block to move upward into the valve plate hopper and push the valve plate to the top of the valve plate hopper.

4. The valve plate assembly equipment according to claim 1, characterized in that: The riveting machine includes an upper die base, a lower die base, and a riveting head. The riveting head is fixed on the lower die base. The upper die base and the riveting head are located above and below the turntable, respectively. The riveting head is driven to rise and fall by a riveting cylinder, and moves the lower jig plate and the flat valve plate assembly on the lower jig plate to the upper die base for riveting.

5. The valve plate assembly equipment according to claim 1, characterized in that: The upper fixture plate robot includes: A connecting rod is located above and parallel to the turntable, and the connecting rod is driven to rotate by a second rotary cylinder. The upper fixture plate transfer robot is fixed to the free end of the connecting rod; The carrier slot is located below the upper fixture plate transfer robot, above the turntable and parallel to it. The size of the upper fixture plate is larger than that of the valve plate. There is a gap between the upper fixture plate and the lower fixture plate. The upper fixture plate transfer robot can drive the carrier slot to move along the gap. The upper fixture plate, which is limited by the second guide post, can be inserted into the carrier slot.

6. The valve plate assembly equipment according to claim 1, characterized in that: The lower detection seat is driven to rise and fall by the third detection cylinder and can pass through the through hole of the fixture. The lower detection seat can drive the lower fixture plate and the flat valve plate on it to move upward to the detection seat and fit tightly to form an airtight detection chamber.

7. The valve plate assembly equipment according to claim 5, characterized in that: The valve plate transfer robot, valve disc transfer robot, limit plate transfer robot, upper fixture plate transfer robot, and unloading transfer robot all adopt a vacuum adsorption method and can be raised, lowered, and moved horizontally. The direction of the horizontal movement is towards or away from the center of the turntable.

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