Dish washing machine inner container spin riveting forming device and control method thereof

Abstract

The invention relates to a dish-washing machine inner container spin riveting forming device and a control method thereof, and belongs to the technical field of dish-washing machine assembling equipment, the dish-washing machine inner container spin riveting forming device comprises a rack, a positioning tool is arranged on the rack, and spin riveting forming assemblies movably displacing relative to the positioning tool are arranged on the left side and the right side of the positioning tool. The machine frame comprises a base frame, and rails which are connected with the spin riveting forming assembly in a sliding and inserted mode are arranged between the two sides of the base frame and the spin riveting forming assembly. The spin riveting forming assembly comprises a spin riveting sliding table seat, a spin riveting chain wheel is arranged at the front end of the spin riveting sliding table seat, a gear motor for driving the spin riveting chain wheel to operate is arranged at the lower end of the spin riveting sliding table seat, a plurality of spin riveting air cylinders are arranged on the two side edges and the upper end of the spin riveting chain wheel, and spin riveting pressing frames are arranged between the spin riveting air cylinders and the spin riveting chain wheel. And the rotary riveting effect is achieved while positioning and limiting are achieved for dish-washing machine inner container spin riveting machining, and the quality stability and machining precision of dish-washing machine inner container spin riveting machining are improved.

Description

Technical Field

[0001] The invention relates to the technical field of dishwasher assembly equipment, and in particular to a dishwasher inner tank rotary riveting forming device and a control method thereof. Background Art

[0002] A dishwasher is a device that automatically washes dishes such as bowls, chopsticks, plates, dishes, knives, forks, etc. Fully automatic dishwashers on the market can be divided into two categories: home and commercial. Home fully automatic dishwashers are only suitable for families, and they mainly include cabinet, tabletop, sink-integrated, and integrated types. With the increasing consumption level of people, the work of washing dishes can be handed over to dishwashers, saving time.

[0003] An existing dishwasher generally includes a dishwasher inner tank, an inner tank, and a flange arranged on the inner tank and used to achieve sealing between the inner tank and an outer shell of the drawer-type dishwasher. The flange is mostly made of plastic or rubber, and the inner tank itself needs to be provided with a connection structure that cooperates with the flange, which makes the structure of the inner tank complicated and increases the difficulty of processing.

[0004] The invention patent with application number 201810414162.8 discloses an inner tank assembly and a dishwasher, wherein the inner tank assembly includes an inner tank having a receiving cavity with an opening at the top; a sealing frame, the sealing frame is arranged at the top of the inner tank, and a sealing groove is provided on the side of the sealing frame facing the inner tank, and the edge of the opening is accommodated in the sealing groove. The inner tank assembly includes a limiting folding edge, the limiting folding edge is arranged on the outer side wall of the top of the inner tank; a supporting rib is arranged on the side wall of the sealing groove corresponding to the limiting folding edge, and the bottom surface of the limiting folding edge abuts against the top of the supporting rib.

[0005] Although the sealing effect between the sealing frame and the inner liner is improved, the limiting folding edge and the inner liner are an integrated structure and the inner liner body needs to be bent at multiple angles to form. The inner liner molding is complicated, which increases the difficulty of processing the inner liner. The production efficiency is low for producing inner liner of different heights and sizes. Correspondingly, the structure of the inner liner mold is complicated. For inner liner of different specifications and sizes, multiple molds of different specifications are required, which not only increases the cost but also has poor versatility. Summary of the invention

[0006] The present invention mainly solves the deficiencies in the prior art and provides a dishwasher liner rotary riveting forming device and a control method thereof, which has the characteristics of compact structure, time-saving, labor-saving and good operation stability. The problem of rotary riveting forming the dishwasher liner through the liner frame and the two end covers is solved. The rotary riveting process of the dishwasher liner plays a role of positioning and limiting while completing the rotary riveting and pressing, thereby improving the quality stability and processing accuracy of the rotary riveting process of the dishwasher liner.

[0007] The above technical problems of the present invention are mainly solved by the following technical solutions: A rotary riveting forming device for the inner tank of a dishwasher comprises a frame, a positioning tool is provided on the frame, and rotary riveting forming components that are movable and displaced with the positioning tool are provided on the left and right sides of the positioning tool. The frame comprises a base frame, and tracks that are slidably plugged with the rotary riveting forming components are provided between the two sides of the base frame and the rotary riveting forming components. The rotary riveting forming components comprise a rotary riveting slide seat, a rotary riveting sprocket is provided at the front end of the rotary riveting slide seat, a gear motor that drives the rotary riveting sprocket to operate is provided at the lower end of the rotary riveting slide seat, a plurality of rotary riveting cylinders are provided on both sides and the upper end of the rotary riveting sprocket, and a rotary riveting press frame is provided between the rotary riveting cylinder and the rotary riveting sprocket.

[0008] Preferably, the positioning tooling includes a tooling base plate, a gear box is provided at the upper end of the tooling base plate, a gear pair is provided in the gear box for driving the positioning tooling frames on both sides to open and contract synchronously, a gear motor is provided at the lower end of the tooling base plate for helical gear meshing transmission with the gear pair, and positioning tooling frames are provided on the left and right sides of the gear box for displacement and extension relative to the gear box.

[0009] Preferably, the positioning fixture includes a core-pulling fixing plate, a push plate is provided at the front end of the core-pulling fixing plate, clamping plates are provided on both sides of the upper end of the push plate, a transition push block fixed to the clamping plate with screws is provided between the clamping plate and the push plate, a cylinder fixing base plate is provided at the lower end of the core-pulling fixing plate, a telescopic cylinder for driving the clamping plate to loosen and limit the position is provided between the cylinder fixing base plate and the push plate, and a connecting joint is provided between the telescopic cylinder and the push plate.

[0010] Preferably, the upper rear end of the core-pulling fixed plate is provided with a plurality of positioning cylinders respectively connected with the push plate and the clamping plate, and a plurality of guide rods movably nested with the gear box are provided below the positioning cylinder. Bearing seats are provided between the positioning cylinder and the push plate, between the positioning cylinder and the clamping plate, and between the guide rod and the gear box.

[0011] Preferably, both the front and rear sides of the positioning fixture are provided with limit seats fixedly connected with the base frame by bolts, the limit seats are provided with limit side pressure plates, and a limit cylinder is provided between the limit side pressure plates and the limit seats.

[0012] Preferably, both left and right ends of the base frame are provided with screw motors, and a screw member for driving the screw riveting forming assembly to slide left and right is provided between the screw motor and the screw riveting forming assembly.

[0013] A control method for a dishwasher inner tank rotary riveting forming device includes the following operating steps: Step 1: Place the inner liner frame on the positioning fixture. The gear motor drives the gear pair to open the core-pulling fixing plate, and the two end covers are placed in the rotary riveting forming components respectively.

[0014] Step 2: The positioning tooling drives the push plate to squeeze the clamping plate through the telescopic cylinder to limit the inner tank frame.

[0015] Step 3: The rotary riveting slides on both sides move toward the positioning fixture along the track until the end cover is engaged with the inner liner frame.

[0016] Step 4: The positioning cylinder drives the clamping plate to position the end cover and the inner tank frame.

[0017] Step 5: The gear motor starts to drive the rivet sprocket to rotate, and then the rivet cylinder drives the rivet press frame to make the rivet sprocket complete the rivet process of the end cover and the inner liner frame.

[0018] Step 6: After the riveting is completed, the riveting cylinder contracts, and the riveting forming components retreat to both sides. Then the positioning cylinder is deflated, the telescopic cylinder contracts, and finally the gear motor drives the gear pair to contract the core-pulling fixing plate. At this time, the riveting of the dishwasher inner tank is completed and the material is taken for the next process.

[0019] The present invention can achieve the following effects: The present invention provides a dishwasher liner rotary riveting forming device and a control method thereof, which, compared with the prior art, has the characteristics of compact structure, time-saving and labor-saving, and good operation stability. The problem of rotary riveting forming the dishwasher liner through the liner frame and the two end covers is solved. The rotary riveting process of the dishwasher liner plays a role of positioning and limiting while completing the rotary riveting pressing, thereby improving the quality stability and processing accuracy of the rotary riveting process of the dishwasher liner. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the positioning tool of the present invention.

[0022] Figure 3 It is a front view structural schematic diagram of the positioning tool of the present invention.

[0023] Figure 4 It is a structural exploded view of the positioning tool of the present invention.

[0024] Figure 5 It is a structural schematic diagram of the frame of the present invention.

[0025] Figure 6 It is a structural schematic diagram of the rotary riveting forming assembly of the present invention.

[0026] In the figure: spin riveting forming component 1, positioning tool 2, frame 3, gear box 4, positioning tool frame 5, tool base plate 6, gear motor 7, clamping plate 8, positioning cylinder 9, push plate 10, bearing seat 11, transition push block 12, connecting joint 13, telescopic cylinder 14, cylinder fixed base plate 15, core pulling fixed plate 16, guide rod 17, gear pair 18, base frame 19, screw motor 20, screw member 21, track 22, limit cylinder 23, limit side pressure plate 24, limit seat 25, spin riveting slide seat 26, spin riveting cylinder 27, spin riveting press frame 28, spin riveting sprocket 29, gear motor 30. DETAILED DESCRIPTION

[0027] The technical solution of the invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0028] Example: Figure 1-6 As shown, a rotary riveting forming device for the inner tank of a dishwasher comprises a frame 3, a positioning fixture 2 is provided on the frame 3, and rotary riveting forming components 1 that are movable and displaced with the positioning fixture 2 are provided on the left and right sides of the positioning fixture 2. The frame 3 comprises a base frame 19, screw motors 20 are provided on the left and right ends of the base frame 19, and a screw member 21 that drives the rotary riveting forming component 1 to slide left and right is provided between the screw motor 20 and the rotary riveting forming component 1. Tracks 22 that are slidably plugged with the rotary riveting forming component 1 are provided between the two sides of the base frame 19 and the rotary riveting forming component 1. A limit seat 25 that is bolted and fixed to the base frame 19 is provided on the front and rear sides of the positioning fixture 2, a limit side pressure plate 24 is provided on the limit seat 25, and a limit cylinder 23 is provided between the limit side pressure plate 24 and the limit seat 25.

[0029] The rotary riveting forming assembly 1 includes a rotary riveting slide 26, a rotary riveting sprocket 29 is provided at the front end of the rotary riveting slide 26, a gear motor 30 is provided at the lower end of the rotary riveting slide 26 to drive the rotary riveting sprocket 29 to operate, a plurality of rotary riveting cylinders 27 are provided on both sides and the upper end of the rotary riveting sprocket 29, and a rotary riveting press frame 28 is provided between the rotary riveting cylinder 27 and the rotary riveting sprocket 29.

[0030] The positioning fixture 2 includes a fixture base plate 6, a gear box 4 is provided at the upper end of the fixture base plate 6, a gear pair 18 is provided in the gear box 4 for driving the positioning fixture frames 6 on both sides to open and contract synchronously, a gear motor 7 is provided at the lower end of the fixture base plate 6 for helical gear meshing transmission with the gear pair 18, and positioning fixture frames 6 are provided on both sides of the gear box 4 for displacement and telescopic movement with the gear box 4. The positioning fixture frame 6 includes a core-pulling fixed plate 16, a push plate 10 is provided at the front end of the core-pulling fixed plate 16, a clamping plate 8 is provided on both sides of the upper end of the push plate 10, a transition push block 12 is provided between the clamping plate 8 and the push plate 10, and a cylinder fixed base plate 15 is provided at the lower end of the core-pulling fixed plate 16, a telescopic cylinder 14 for driving the clamping plate 8 to loosen and limit is provided between the cylinder fixed base plate 15 and the push plate 10, and a connecting joint 13 is provided between the telescopic cylinder 14 and the push plate 10. Three positioning cylinders 9 are provided at the rear end of the upper part of the core-pulling fixing plate 16, which are respectively connected to the push plate 10 and the clamping plate 8. Four guide rods 17 that are movably nested with the gear box 4 are provided below the positioning cylinder 9. Bearing seats 11 are provided between the positioning cylinder 9 and the push plate 10, between the positioning cylinder 9 and the clamping plate 8, and between the guide rod 17 and the gear box 4.

[0031] A control method for a dishwasher inner tank rotary riveting forming device includes the following operating steps: The first step: placing the inner liner frame on the positioning fixture 2, the gear motor 7 drives the gear pair 18 to open the core-pulling fixing plate 16, and the two end covers are respectively placed in the rotary riveting forming assembly 1.

[0032] Step 2: The positioning tool 2 drives the push plate 10 to press the clamping plate 8 to limit the inner liner frame by lifting the telescopic cylinder 14.

[0033] Step 3: The rotary riveting slide seats 26 on both sides move toward the positioning tool 2 along the track 22 until the end cover is sleeved with the inner liner frame.

[0034] Step 4: The positioning cylinder 9 drives the clamping plate 8 to position the end cover and the inner tank frame.

[0035] Step 5: The gear motor 30 starts to drive the riveting sprocket 29 to rotate, and then the riveting cylinder 7 drives the riveting press frame 28 so that the riveting sprocket 29 completes the riveting process of the end cover and the inner liner frame.

[0036] Step 6: After the riveting is completed, the riveting cylinder 7 contracts, and the riveting forming assembly 1 retreats to both sides. Then the positioning cylinder 9 is deflated, and the telescopic cylinder 14 contracts. Finally, the gear motor 7 drives the gear pair 18 to contract the core-pulling fixing plate 16. At this time, the riveting of the dishwasher inner tank is completed and the material is taken for the next process.

[0037] In summary, the dishwasher liner rotary riveting forming device and control method thereof have the characteristics of compact structure, time-saving and labor-saving, and good operation stability. The problem of rotary riveting forming the dishwasher liner through the liner frame and the two end covers is solved. The rotary riveting process of the dishwasher liner plays a role of positioning and limiting while completing the rotary riveting press, thereby improving the quality stability and processing accuracy of the rotary riveting process of the dishwasher liner.

[0038] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A rotary riveting forming device for a dishwasher liner, characterized in that: The invention comprises a frame (3), wherein a positioning tool (2) is provided on the frame (3), and a rotary riveting forming component (1) which is movable relative to the positioning tool (2) is provided on the left and right sides of the positioning tool (2); the frame (3) comprises a base frame (19), and rails (22) which are slidably plugged with the rotary riveting forming component (1) are provided between the two sides of the base frame (19) and the rotary riveting forming component (1); the rotary riveting forming component (1) comprises a rotary riveting slide seat (26), a rotary riveting sprocket (29) is provided at the front end of the rotary riveting slide seat (26), a gear motor (30) which drives the rotary riveting sprocket (29) to operate is provided at the lower end of the rotary riveting slide seat (26), a plurality of rotary riveting cylinders (27) are provided at the two sides and the upper end of the rotary riveting sprocket (29), and a rotary riveting pressing frame (28) is provided between the rotary riveting cylinders (27) and the rotary riveting sprocket (29).

2. The dishwasher inner tank rotary riveting forming device according to claim 1, characterized in that: The positioning fixture (2) comprises a fixture base plate (6), a gear box (4) is provided at the upper end of the fixture base plate (6), a gear pair (18) is provided in the gear box (4) for driving the positioning fixture frames (6) on both sides to synchronously open and retract, a gear motor (7) is provided at the lower end of the fixture base plate (6) for helical gear meshing transmission with the gear pair (18), and positioning fixture frames (6) are provided on both left and right sides of the gear box (4) for displacement and extension relative to the gear box (4).

3. The dishwasher inner tank rotary riveting forming device according to claim 2, characterized in that: The positioning fixture frame (6) includes a core-pulling fixing plate (16), a push plate (10) is provided at the front end of the core-pulling fixing plate (16), clamping plates (8) are provided on both sides of the upper end of the push plate (10), a transition push block (12) is provided between the clamping plate (8) and the push plate (10) and is screwed to the clamping plate (8), a cylinder fixing base plate (15) is provided at the lower end of the core-pulling fixing plate (16), a telescopic cylinder (14) for driving the clamping plate (8) to limit the tension is provided between the cylinder fixing base plate (15) and the push plate (10), and a connecting joint (13) is provided between the telescopic cylinder (14) and the push plate (10).

4. The dishwasher inner tank rotary riveting forming device according to claim 3, characterized in that: The upper rear end of the core-pulling fixing plate (16) is provided with a plurality of positioning cylinders (9) respectively connected to the push plate (10) and the clamping plate (8); a plurality of guide rods (17) movably nested with the gear box (4) are provided below the positioning cylinders (9); and bearing seats (11) are provided between the positioning cylinders (9) and the push plate (10), between the positioning cylinders (9) and the clamping plate (8), and between the guide rods (17) and the gear box (4).

5. The dishwasher inner tank rotary riveting forming device according to claim 1, characterized in that: The positioning fixture (2) is provided with a limit seat (25) on both the front and rear sides thereof and is fixedly connected to the base frame (19) by bolts. A limit side pressure plate (24) is provided on the limit seat (25), and a limit cylinder (23) is provided between the limit side pressure plate (24) and the limit seat (25).

6. The dishwasher inner tank rotary riveting forming device according to claim 1, characterized in that: The left and right ends of the base frame (19) are each provided with a screw motor (20), and a screw member (21) for driving the screw riveting forming assembly (1) to slide left and right is provided between the screw motor (20) and the screw riveting forming assembly (1).

7. The control method of the dishwasher inner tank riveting forming device according to claim 4, characterized in that The steps are as follows: Step 1: placing the inner liner frame onto the positioning fixture (2), the gear motor (7) drives the gear pair (18) to open the core-pulling fixing plate (16), and the two end covers are respectively placed into the rotary riveting forming assembly (1); Step 2: The positioning tool (2) drives the push plate (10) to press the pressing plate (8) to limit the inner liner frame by lifting the telescopic cylinder (14); Step 3: The riveting slide seats (26) on both sides move toward the positioning tool (2) along the track (22) until the end cover is sleeved with the inner liner frame; Step 4: The positioning cylinder (9) drives the pressing plate (8) to position the end cover and the inner container frame; Step 5: The gear motor (30) is started to drive the riveting sprocket (29) to rotate, and then the riveting cylinder (7) drives the riveting press frame (28) so that the riveting sprocket (29) completes the riveting process of the end cover and the inner liner frame; Step 6: After the riveting is completed, the riveting cylinder (7) contracts, and the riveting forming assembly (1) retreats to both sides. Then, the positioning cylinder (9) is deflated, and the telescopic cylinder (14) contracts. Finally, the gear motor (7) drives the gear pair (18) to contract the core-pulling fixing plate (16). At this time, the riveting of the inner tank of the dishwasher is completed and the material is taken out for the next process.

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