Dishwasher inner tank forming and riveting device and control method thereof

Abstract

The present application relates to a kind of dishwasher inner container forming riveting device and its control method, the dishwasher forming equipment technical field, including support base plate, the support base plate is equipped with positioning mechanism, the positioning mechanism is equipped with dishwasher inner container, the positioning mechanism rear end is equipped with riveting assembly.The riveting assembly includes the riveting seat of displaceable alignment, the riveting seat is equipped with riveting head for the riveting forming of dishwasher inner container.The positioning mechanism includes lifting tool, the lifting tool is equipped with limiting tool between dishwasher inner container, the upper end of the dishwasher inner container is equipped with the pressing tool of fixed connection with lifting tool and pressure bonding with dishwasher inner container.It has the advantages of compact structure, high efficiency and good running stability.Solve the problem of automatic forming of dishwasher inner container.Lifting tool, riveting tool and rotating tool are used to realize the process of riveting forming of dishwasher inner container.

Description

Technical Field

[0001] This invention relates to the field of dishwasher molding equipment technology, specifically to a dishwasher inner liner molding and riveting device and its control method. Background Technology

[0002] A dishwasher is a device that automatically cleans tableware such as bowls, chopsticks, plates, dishes, knives, and forks. Fully automatic dishwashers on the market can be divided into two categories: household and commercial. Household fully automatic dishwashers are only suitable for home use and mainly include cabinet-style, countertop-style, sink-integrated, and combined models. As people's living standards improve, the task of washing dishes can be handled by a dishwasher, saving time.

[0003] In the current environment, there is a high demand for dishwashers. As an important part of the dishwasher, the inner tank is the working space of the dishwasher. The quality of its molding and riveting directly affects the quality of the entire dishwasher. Therefore, improving the process performance of this station is particularly important.

[0004] In dishwashers, the inner tub is the largest component in terms of volume. The inner tub is usually made by bending sheet metal to form an open structure on one side. The specific structure is made according to the specific structure of the dishwasher. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies by providing a dishwasher inner liner forming and riveting device and its control method, which features a compact structure, high efficiency, and good operational stability. It solves the problem of automated forming of the dishwasher inner liner. The process of riveting and forming the dishwasher inner liner is achieved using lifting fixtures, riveting fixtures, and rotating fixtures.

[0006] The above-mentioned technical problems of the present invention are mainly solved by the following technical solutions:

[0007] A dishwasher inner liner forming and riveting device includes a supporting base plate, a positioning mechanism on the supporting base plate, a dishwasher inner liner inside the positioning mechanism, and a riveting assembly at the rear end of the positioning mechanism. The riveting assembly includes a movable, alignable riveting seat, and a riveting head for riveting the dishwasher inner liner within the riveting seat. The positioning mechanism includes a lifting fixture, a limiting fixture between the lifting fixture and the dishwasher inner liner, and a clamping fixture fixedly connected to the lifting fixture and pressed against the dishwasher inner liner at the upper end of the dishwasher inner liner.

[0008] Preferably, the lifting fixture has a rotating jig at its front end, and connecting slide plates are provided between the lower ends of the lifting fixture and the supporting base plate on both sides. Several guide rails I are provided between the connecting slide plates and the supporting base plate and are inserted into the supporting base plate in a snap-fit ​​manner. A rack is provided on the inner side of each connecting slide plate, and a gear displacement motor that meshes with the rack to drive the lifting fixture to move forward and backward is provided on each connecting slide plate.

[0009] Preferably, the rotating fixture includes a rotating support column, a rotating motor is provided on the side of the rotating support column, and a rotating top plate is provided on the upper end of the rotating motor.

[0010] Preferably, the lifting fixture includes a pallet, a lifting motor is provided between the pallet and the connecting slide plate, guide posts extending from the upper end of the pallet are provided on both sides of the lifting motor, and guide bushings are provided between the guide posts and the pallet.

[0011] Preferably, the clamping fixture includes a clamping frame that is screwed and fixed to both ends of the tray, a clamping motor is provided on the clamping frame, a clamping motor seat is provided between the clamping motor and the clamping frame, and a clamping plate is provided between the clamping motor and the inner tub of the dishwasher.

[0012] Preferably, the limiting fixture includes a positioning plate that is fixed to the dishwasher inner tub by pressing it against the tray using a clamping fixture. The positioning plate is provided with a plurality of clamping cylinders that press against three sides of the dishwasher inner tub, and a limiting pressure plate is provided between the clamping cylinders and the dishwasher inner tub.

[0013] Preferably, the lower end of the rivet joint is provided with a guide seat that is slidably connected to the rivet base, and the rear end of the rivet base is provided with a rivet extension cylinder for driving the rivet joint to extend and retract for riveting. The lower end of the guide seat is provided with a rivet base plate, and a transverse base plate is provided between the rivet base plate and the guide seat. Below the rivet extension cylinder is a displacement adjustment cylinder for driving the guide seat to move back and forth. A lead screw is provided between the transverse base plate and the rivet base plate for driving the transverse base plate to move left and right. A lead screw motor is provided at one end of the lead screw. Bearing seats that are inserted and sleeved with the lead screw for limiting the position are provided at both ends of the rivet base plate. A slider and guide rail II are provided between the guide seat and the rivet base, between the guide seat and the transverse base plate, and between the transverse base plate and the rivet base plate.

[0014] Preferably, the lower end of the supporting base plate is provided with a plurality of rollers arranged in an array, and a frame is provided between the rollers and the supporting base plate.

[0015] A control method for a dishwasher inner tub forming and riveting device includes the following operating steps:

[0016] Step 1: Place the dishwasher inner tub onto the limiting fixture for fixation, and then press the fixture to perform upper and lower limit pressing.

[0017] Step 2: The lifting fixture is first raised and moved horizontally above the riveting assembly. Then the lifting fixture is lowered so that the edge of the dishwasher inner tub to be riveted is placed between the riveting seat and the riveting head. The riveting of one side of the dishwasher inner tub is completed under the displacement of the riveting assembly.

[0018] Step 3: The lifting fixture is raised and then moved onto the rotating jig. After the limiting fixture is placed on the rotating jig, the clamping fixture is disengaged. The lifting fixture then retracts and descends, causing the lifting fixture to disengage from the limiting fixture. The rotating jig then rotates 90 degrees to complete the changing process.

[0019] Step 4: The lifting fixture is raised so that it and the clamping fixture can position and fix the limiting fixture and the dishwasher inner tub.

[0020] Step 5: The lifting fixture is raised and moved backward to above the riveting assembly to rivet the other side of the dishwasher inner tub. The side-changing and riveting process is repeated to complete the forming and riveting process of the four sides of the dishwasher inner tub.

[0021] Preferably, the positioning mechanism provides the power for forward and backward displacement through gear displacement motor meshing with rack and pinion, and switches between rotation and riveting forming processes along guide rail I.

[0022] The present invention can achieve the following effects:

[0023] This invention provides a dishwasher inner liner forming and riveting device and its control method, which, compared with the prior art, has the advantages of compact structure, high efficiency, and good operational stability. It solves the problem of automated forming of dishwasher inner liners. The process of riveting and forming the dishwasher inner liner is realized by using lifting fixtures, riveting fixtures, and rotating fixtures. Attached Figure Description

[0024] Figure 1 This is a top view of the structure of the present invention.

[0025] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0026] Figure 3 This is a schematic diagram of the positioning mechanism of the present invention.

[0027] Figure 4 This is a schematic diagram of the limiting tooling of the present invention.

[0028] Figure 5 This is a structural schematic diagram of the riveting assembly of the present invention.

[0029] In the diagram: 1. Frame; 2. Riveting assembly; 3. Dishwasher inner tank; 4. Positioning mechanism; 5. Rack; 6. Guide rail I; 7. Rotating fixture; 8. Support base plate; 9. Lifting fixture; 10. Clamping fixture; 11. Limiting fixture; 12. Roller; 13. Connecting slide plate; 14. Gear displacement motor; 15. Rotating motor; 16. Rotating support column; 17. Rotating top plate; 18. Clamping frame; 19. Clamping motor seat; 20. Clamping motor; 21. Clamping plate; 22. Support plate; 23. Guide column; 24. Guide bushing; 25. Lifting motor; 26. Clamping cylinder; 27. Limiting pressure plate; 28. Positioning plate; 29. ​​Screw motor; 30. Riveting seat; 31. Riveting joint; 32. Guide seat; 33. Riveting telescopic cylinder; 34. Slider; 35. Guide rail II; 36. Displacement adjustment cylinder; 37. Bearing seat; 38. Screw; 39. Horizontal movement base plate; 40. Riveting base plate. Detailed Implementation

[0030] The technical solution of the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0031] Example: Figure 1-5 As shown, a dishwasher inner liner forming and riveting device includes a supporting base plate 8. Six rollers 12 arranged in an array are located at the lower end of the supporting base plate 8. A frame 1 is provided between the rollers 12 and the supporting base plate 8. A positioning mechanism 4 is provided on the supporting base plate 8, and the dishwasher inner liner 3 is located within the positioning mechanism 4. A riveting assembly 2 is located at the rear end of the positioning mechanism 4. The riveting assembly 2 includes a movable riveting seat 30, and a riveting head 31 for riveting the dishwasher inner liner 3 is located within the riveting seat 30. A guide seat 32 is provided at the lower end of the riveting head 31, which is slidably connected to the riveting seat 30. A riveting telescopic cylinder 33 for driving the riveting head 31 to extend and retract for riveting is located at the rear end of the riveting seat 30. The guide seat 32 is provided with a riveting base plate 40 at its lower end. A transverse base plate 39 is provided between the riveting base plate 40 and the guide seat 32. A displacement adjusting cylinder 36 is provided below the riveting telescopic cylinder 33 to drive the guide seat 32 to move back and forth. A lead screw 38 is provided between the transverse base plate 39 and the riveting base plate 40 to drive the transverse base plate 39 to move left and right. A lead screw motor 29 is provided at one end of the lead screw 38. Bearing seats 37 are provided at both ends of the riveting base plate 40 to be inserted into and limited by the lead screw 38. A slider 34 and a guide rail II 35 are provided between the guide seat 32 and the riveting base 30, between the guide seat 32 and the transverse base plate 39, and between the transverse base plate 39 and the riveting base 40.

[0032] The positioning mechanism 4 includes a lifting fixture 9, which includes a support plate 22. A lifting motor 25 is provided between the support plate 22 and the connecting slide 13. Guide posts 23 extending from the upper end of the support plate 22 are provided on both sides of the lifting motor 25. A guide bushing 24 is provided between the guide post 23 and the support plate 22. A limiting fixture 11 is provided between the lifting fixture 9 and the dishwasher inner tub 3. The limiting fixture 11 includes a positioning plate 28 that is fixed to the support plate 22 by pressing it against the dishwasher inner tub 3 using a pressing fixture 10. The positioning plate 28 is provided with eight pressing cylinders 26 that press against three surfaces of the dishwasher inner tub 3. A limiting pressure plate 27 is provided between the pressing cylinders 26 and the dishwasher inner tub 3. The upper end of the dishwasher inner tub 3 is provided with a clamping fixture 10 which is fixedly connected to the lifting fixture 9 and presses against the dishwasher inner tub 3. The clamping fixture 10 includes a clamping frame 18 which is fixedly connected to both ends of the support plate 22 with screws. A clamping motor 20 is provided on the clamping frame 18. A clamping motor seat 19 is provided between the clamping motor 20 and the clamping frame 18. A clamping plate 21 is provided between the clamping motor 20 and the dishwasher inner tub 3.

[0033] The lifting fixture 9 has a rotating jig 7 at its front end. The rotating jig 7 includes a rotating support column 16. A rotating motor 15 is located on the side of the rotating support column 16. A rotating top plate 17 is located on the upper end of the rotating motor 15. Connecting slide plates 13 are provided between the lower ends of the lifting fixture 9 and the supporting base plate 8 on both sides. Two guide rails I6 are provided between the connecting slide plates 13 and the supporting base plate 8 and are inserted into the supporting base plate 8. A rack 5 is provided on the inner side of the connecting slide plates 13. A gear displacement motor 14 is provided on the connecting slide plates 13 to drive the lifting fixture 9 to move back and forth by meshing with the rack 5.

[0034] A control method for a dishwasher inner tub forming and riveting device includes the following operating steps:

[0035] Step 1: Place the dishwasher inner tub 3 onto the limiting fixture 11 for fixation, and then press the fixture 10 to perform upper and lower limit pressing.

[0036] Step 2: The lifting fixture 9 is first raised and moved horizontally above the riveting assembly 2. Then the lifting fixture 9 is lowered so that the edge of the dishwasher inner tub 3 to be riveted is placed between the riveting seat 30 and the riveting head 31. The riveting of one side of the dishwasher inner tub 3 is completed under the displacement of the riveting assembly 2.

[0037] The positioning mechanism 4 provides the power for forward and backward displacement through the gear displacement motor 14 meshing with the rack 5, and switches the displacement along the guide rail I6 for rotation or riveting forming processes.

[0038] Step 3: The lifting fixture 9 is raised and then moved onto the rotating fixture 7. When the limiting fixture 11 is placed on the rotating fixture 7, the clamping fixture 10 is disengaged. The lifting fixture 9 then retracts and descends, so that the lifting fixture 9 is disengaged from the limiting fixture 11. Then, the rotating fixture 7 rotates 90 degrees to complete the changing process.

[0039] Step 4: Lifting fixture 9 is raised so that lifting fixture 9 and clamping fixture 10 complete the positioning and fixing of limiting fixture 11 and dishwasher inner tub 3.

[0040] Step 5: Lifting fixture 9 is raised and moved backward to above riveting assembly 2 to rivet the other side of dishwasher inner tub 3. The side-changing and riveting process is repeated to complete the forming and riveting process of the four sides of dishwasher inner tub 3.

[0041] In summary, the dishwasher inner liner forming and riveting device and its control method have the advantages of compact structure, high efficiency, and good operational stability. They solve the problem of automated forming of the dishwasher inner liner. The process of riveting and forming the dishwasher inner liner is realized by using lifting fixtures, riveting fixtures, and rotating fixtures.

[0042] 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 those skilled in the art within the scope of the present invention are covered by the patent scope of the present invention.

Claims

1. A control method for a dishwasher inner tub forming and riveting device, characterized in that: The dishwasher inner liner forming and riveting device includes a supporting base plate (8), a positioning mechanism (4) is provided on the supporting base plate (8), a dishwasher inner liner (3) is provided inside the positioning mechanism (4), and a riveting assembly (2) is provided at the rear end of the positioning mechanism (4); the riveting assembly (2) includes a riveting seat (30) that can be displaced and aligned, and a riveting head (31) for riveting the dishwasher inner liner (3) is provided inside the riveting seat (30); the positioning mechanism (4) includes a lifting fixture (9), a limiting fixture (11) is provided between the lifting fixture (9) and the dishwasher inner liner (3), and a pressing fixture (10) is provided at the upper end of the dishwasher inner liner (3) that is fixedly connected to the lifting fixture (9) and pressed against the dishwasher inner liner (3); The lifting fixture (9) is provided with a rotating jig (7) at the front end. The rotating jig (7) includes a rotating support column (16). A rotating motor (15) is provided on the side of the rotating support column (16). A rotating top plate (17) is provided at the upper end of the rotating motor (15). A connecting slide plate (13) is provided between the lower ends of the lifting fixture (9) and the supporting base plate (8). A number of guide rails I (6) are provided between the connecting slide plate (13) and the supporting base plate (8) and are inserted into the supporting base plate (8). A rack (5) is provided on the inner side of the connecting slide plate (13). A gear displacement motor (14) is provided on the connecting slide plate (13) to drive the lifting fixture (9) to move forward and backward in a meshing manner with the rack (5). The lifting fixture (9) includes a pallet (22), a lifting motor (25) is provided between the pallet (22) and the connecting slide plate (13), and guide posts (23) extending out of the upper end of the pallet (22) are provided on both sides of the lifting motor (25), and guide bushings (24) are provided between the guide posts (23) and the pallet (22). The clamping fixture (10) includes a clamping frame (18) that is screwed to both ends of the tray (22). The clamping frame (18) is equipped with a clamping motor (20). A clamping motor seat (19) is provided between the clamping motor (20) and the clamping frame (18). A clamping plate (21) is provided between the clamping motor (20) and the dishwasher inner tub (3). The control method includes the following operational steps: Step 1: Place the dishwasher inner tub (3) onto the limiting fixture (11) for fixation, and then press the fixture (10) to perform upper and lower limit pressing. Step 2: The lifting fixture (9) is first raised and moved horizontally above the riveting assembly (2), and then the lifting fixture (9) is lowered so that the edge of the dishwasher inner tub (3) to be riveted is placed between the riveting seat (30) and the riveting head (31). The riveting of one side of the dishwasher inner tub (3) is completed under the displacement of the riveting assembly (2). Step 3: The lifting fixture (9) is lifted and then moved to the rotating jig (7). When the limiting fixture (11) is placed on the rotating jig (7), the clamping fixture (10) is disengaged. The lifting fixture (9) then retracts and descends, so that the lifting fixture (9) is disengaged from the limiting fixture (11). The rotating jig (7) is then rotated 90 degrees to complete the changing process. Step 4: The lifting fixture (9) is raised so that the lifting fixture (9) and the clamping fixture (10) complete the positioning and fixing of the limiting fixture (11) and the dishwasher inner tub (3); Step 5: Lifting fixture (9) is raised and moved backward to above the riveting assembly (2) to rivet the other side of the dishwasher inner liner (3). The side-changing and riveting process is repeated to complete the forming and riveting process of the four sides of the dishwasher inner liner (3).

2. The control method for the dishwasher inner liner forming and riveting device according to claim 1, characterized in that: The limiting fixture (11) includes a positioning plate (28) that is fixed to the dishwasher inner tub (3) by pressing the tray (22) with the clamping fixture (10). The positioning plate (28) is provided with a plurality of clamping cylinders (26) that press against the three sides of the dishwasher inner tub (3). A limiting pressure plate (27) is provided between the clamping cylinders (26) and the dishwasher inner tub (3).

3. The control method for the dishwasher inner liner forming and riveting device according to claim 1, characterized in that: The lower end of the rivet joint (31) is provided with a guide seat (32) that is slidably connected to the rivet seat (30). The rear end of the rivet seat (30) is provided with a rivet telescopic cylinder (33) for driving the rivet joint (31) to telescopically rivet. The lower end of the guide seat (32) is provided with a rivet base plate (40). A transverse base plate (39) is provided between the rivet base plate (40) and the guide seat (32). Below the rivet telescopic cylinder (33) is a displacement adjusting cylinder (36) for driving the guide seat (32) to move back and forth. A lead screw (38) is provided between the base plate (39) and the riveting base plate (40) to drive the transverse base plate (39) to move left and right. A lead screw motor (29) is provided at one end of the lead screw (38). Bearing seats (37) that are inserted into and limited by the lead screw (38) are provided at both ends of the riveting base plate (40). A slider (34) and a guide rail II (35) are provided between the guide seat (32) and the riveting seat (30), between the guide seat (32) and the transverse base plate (39), and between the transverse base plate (39) and the riveting base plate (40).

4. The control method for the dishwasher inner liner forming and riveting device according to claim 1, characterized in that: The lower end of the supporting base plate (8) is provided with a number of rollers (12) arranged in an array, and a frame (1) is provided between the rollers (12) and the supporting base plate (8).

5. The control method for the dishwasher inner liner forming and riveting device according to claim 1, characterized in that: The positioning mechanism (4) provides the power for forward and backward displacement through gear displacement motor (14) meshing with rack (5), and performs displacement switching along guide rail I (6) for rotation or riveting forming process.

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