Riveting machine for closing and forming top cover and middle shell of electronic water pump and working method of riveting machine

Abstract

The invention relates to a riveting machine for closing and forming a top cover and a middle shell of an electronic water pump and a working method of the riveting machine, and belongs to the field of electronic water pumps in new energy automobiles. An upper rack is matched with a lower rack, a pressing riveting mechanism and a positioning transplanting mechanism are fixed to the lower rack, and a left riveting head combining mechanism and a right riveting head combining mechanism are arranged on the pressing riveting mechanism; a sliding shaft mounting plate in the pressing and riveting mechanism is connected with a plurality of sliding shafts, the sliding shafts are matched with a plurality of linear bearings, a plurality of positioning air cylinders are all installed on an upper top plate, a positioning rod mounting plate is connected with the sliding shafts, a pressing head connecting plate is connected with a pressing air cylinder, and a riveting air cylinder floating head is connected with a riveting air cylinder. The riveting air cylinder floating head is in floating connection with the connecting pieces, the floating bearings are all arranged on the upper floating plate and the lower floating plate, and the connecting pieces are all arranged on the upper floating plate and the lower floating plate. The device is reasonable in structure, improves the riveting success rate, guarantees one-time closing forming, can guarantee the use performance of the electronic water pump, is convenient to operate, and meets the use requirements.

Description

Technical Field

[0001] The present invention relates to a riveting machine and its working method, in particular to a riveting machine for the closing and forming of the top cover and the middle shell of an electronic water pump and its working method. It is mainly used for the riveting process of the top cover and the middle shell of an electronic water pump to achieve the one-time closing and forming during the assembly of the top cover and the pump body. It belongs to the technical field of electronic water pumps in new energy vehicles. Background Art

[0002] New energy vehicles usually have two or more electronic water pumps. The electronic water pump is the power source of the entire cooling system of new energy vehicles. The power battery, drive motor, etc. of new energy vehicles all rely on the electronic water pump to drive the coolant to circulate and cool.

[0003] The existing electronic water pumps in the prior art generally include a top cover, a pump housing, a middle shell, a shaft core, a rotor assembly, a stator assembly, a circuit board assembly, etc.; the top cover, the pump housing, and the middle shell are combined and fixed to each other to form a chamber. Both ends of the shaft core are fixed on the top cover and the pump housing respectively. The rotor assembly is supported in the chamber between the top cover and the pump housing through the shaft core. The stator assembly is arranged outside the chamber and can magnetically couple and drive the rotor assembly to rotate in the chamber between the top cover and the pump housing, so as to drive the water flow through the impeller on the rotor assembly to make the water flow directionally.

[0004] The existing method uses manual processing, with low automation. If the riveting and closing between the top cover and the pump housing are not in place, it will cause an internal and external pressure difference in the chamber between the top cover and the middle shell, which will directly affect the service performance and life of the electronic water pump.

[0005] Therefore, it is particularly necessary to provide a riveting machine with a reasonable structural design, which can improve the riveting success rate, ensure one-time closing and forming, and thus ensure the service performance of the electronic water pump. Summary of the Invention

[0006] The purpose of the present invention is to overcome the above-mentioned deficiencies existing in the prior art, and provide a riveting machine for the closing and forming of the top cover and the middle shell of an electronic water pump and its working method, which has a reasonable structural design, is safe and reliable, can improve the riveting success rate, ensure one-time closing and forming, and thus ensure the service performance of the electronic water pump, and is convenient to operate.

[0007] The technical solution adopted by the present invention to solve the above problems is as follows: The combined riveting machine for the flanging forming of the top cover and the middle shell of an electronic water pump includes an upper frame and a lower frame, and the upper frame matches the lower frame. It is characterized in that it further includes a positioning and transplanting mechanism, a pressing and riveting mechanism, a left riveting head mechanism, and a right riveting head mechanism. The pressing and riveting mechanism and the positioning and transplanting mechanism are respectively fixed on the lower frame, and the left riveting head mechanism and the right riveting head mechanism are respectively fixed on the pressing and riveting mechanism. The pressing and riveting mechanism includes a sliding shaft mounting plate, an upper top plate, a pressing cylinder, an upper and lower floating plate, a pressing head connecting plate, a pressing head, a riveting cylinder floating head, a positioning rod mounting plate, multiple sliding shafts, multiple support columns, multiple floating bearings, multiple positioning rods, multiple connecting pieces, multiple positioning cylinders, multiple linear bearings, and multiple riveting cylinders. The sliding shaft mounting plate is connected to multiple sliding shafts, and the multiple sliding shafts cooperate with multiple linear bearings. Multiple positioning cylinders are all installed on the upper top plate, multiple positioning rods are all fixed on the positioning rod mounting plate, multiple linear bearings are all fixed on the upper top plate, the pressing cylinder is installed on the upper top plate, multiple riveting cylinders are all fixed on the upper top plate, the positioning rod mounting plate is connected to the sliding shaft, the pressing head connecting plate is connected to the pressing cylinder, the pressing head is installed on the pressing head connecting plate, the riveting cylinder floating head is connected to the riveting cylinder, and the riveting cylinder floating head is floatingly connected to the connecting piece. Multiple floating bearings are all fixed on the upper and lower floating plate, multiple connecting pieces are all installed on the upper and lower floating plate, the upper end of each support column is connected to the upper top plate, and the other end of the support column is connected to the lower frame. The left riveting head mechanism and the right riveting head mechanism have the same structure. The left riveting head mechanism includes a riveting head body, a slider, a guide rail, a fixed block, a cylinder, an adjusting piece, a cylinder mounting plate, a floating joint, a riveting positioning hole, and a handle. The riveting head body is fixed on the slider, and the slider is arranged on the guide rail and can slide. The cylinder is fixed to the cylinder mounting plate, and the cylinder mounting plate is installed on the fixed block. One end of the floating joint is connected to the cylinder, and the other end of the floating joint is movably connected to the slider. The adjusting piece is arranged on the upper and lower floating plate in the pressing and riveting mechanism and can adjust the positions of the left riveting head mechanism and the right riveting head mechanism. The slider is provided with a riveting positioning hole, and the handle is arranged on the riveting head body.

[0008] Preferably, the positioning and transplanting mechanism of the present invention includes a cylinder, a bottom plate, a slide rail, a conversion bottom plate, a product setting seat, a product orientation block, and a slider mounting plate. One end of the cylinder is fixed to the bottom plate, and the piston rod in the cylinder is floatingly connected to the slider mounting plate. The slider mounting plate is movably arranged on the slide rail, and the slide rail is fixed to the bottom plate. The conversion bottom plate is installed on the slider mounting plate, the product setting seat is installed on the conversion bottom plate, and the product orientation block is connected to the product setting seat.

[0009] Preferably, the pressing and riveting mechanism of the present invention further includes a detection and sensing component, and the detection and sensing component is installed on the lower frame.

[0010] The present invention also provides a working method for a combined riveting machine used for the closing and forming of the top cover and the middle shell of an electronic water pump, which is characterized in that the specific steps are as follows: (S1) The positioning and transplanting mechanism is at the material level (original position). The product (first the top cover, and then the middle shell assembly) is manually placed into the product setting seat in the positioning and transplanting mechanism. Then, the angle is restricted by the product orientation block. Then, the product is detected for its arrival by the detection and sensing component. The product is brought into the riveting position by the cylinder, and then the position is detected by the detection and sensing component; (S2) The pressing cylinder in the pressing and riveting mechanism works to drive the pressing head to press the product. The cylinder parts in the left riveting head mechanism and the right riveting head machine work to drive the riveting positioning holes on the slider parts to reach the working position. The positioning cylinder works to drive the positioning rod to cooperate with the riveting positioning holes to ensure the consistency of the riveting position. At this time, the cylinder parts in the left riveting head mechanism and the right riveting head mechanism cut off the air supply; (S3) The riveting cylinder acts, and the floating head of the riveting cylinder presses the slider part, so that the upper and lower floating plates drive the riveting head bodies in the left riveting head mechanism and the right riveting head mechanism to perform riveting; (S4) The corresponding mechanisms are all reset. The positioning and transplanting mechanism returns the product to the material level, and the operator takes the part, ending the entire riveting process.

[0011] Compared with the prior art, the present invention has the following advantages and effects: (1) The overall structure is reasonably designed, safe and reliable. It can complete the one-time forming of the closing and riveting of the top cover and the middle shell, with high automation, high integration, and fast production rhythm; (2) The angle of the closing and riveting can be controlled by changing the left and right riveting heads. Multiple quick-change interfaces for the riveting of various electronic water pumps are reserved in the design, and it can be compatible with the production of various irregular electronic water pumps on this machine; (3) The product setting seat, quick-change bottom plate, and product orientation block in the positioning and transplanting mechanism can be changed to different product models; the riveting head bodies in the left riveting head mechanism and the right riveting head mechanism can be changed and the angle can be adjusted; the pressing head on the pressing head connecting plate can also be changed to meet the use requirements. Description of the Drawings

[0012] Figure 1 is the overall front view structural schematic diagram of the embodiment of the present invention.

[0013] Figure 2 is the structural schematic diagram of the positioning and transplanting mechanism in the embodiment of the present invention.

[0014] Figure 3 is the structural schematic diagram of the middle shell and the top cover in the embodiment of the present invention.

[0015] Figure 4 is the three-dimensional structural schematic diagram of the pressing and riveting mechanism in the embodiment of the present invention.

[0016] Figure 5It is a front view structural schematic diagram of the pressing and riveting mechanism in the embodiment of the present invention.

[0017] Figure 6 It is a side view structural schematic diagram of the pressing and riveting mechanism in the embodiment of the present invention.

[0018] Figure 7 It is a structural schematic diagram of the left riveting head mechanism in the embodiment of the present invention.

[0019] In the figure: upper platform 1, lower platform 2, positioning and transplanting mechanism 3, pressing and riveting mechanism 4, left riveting head mechanism 5, right riveting head mechanism 6, middle shell Z, top cover D; Positioning and transplanting mechanism 3: cylinder 31, bottom plate 32, slide rail 33, tool change bottom plate 34, product setting seat 35, product orientation block 36, slider mounting plate 37, ear plate 38; Pressing and riveting mechanism 4: sliding shaft mounting plate 401, sliding shaft 402, upper top plate 403, pressing cylinder 404, support column 405, floating bearing 406, upper and lower floating plate 407, pressing head connecting plate 408, pressing head 409, positioning rod 410, connecting piece 411, positioning cylinder 412, linear bearing 413, riveting cylinder 414, riveting cylinder floating head 415, detection and sensing component 416, positioning rod mounting plate 417, reinforcing rib 418; Left riveting head mechanism 5: riveting head body 51, slider part 52, guide rail 53, fixed block 54, cylinder part 55, adjusting part 56, cylinder mounting plate 57, floating joint 58, riveting positioning hole 521, handle 511. Specific embodiments

[0020] The present invention will be further described in detail below in conjunction with the drawings and through embodiments. The following embodiments are explanations of the present invention, and the present invention is not limited to the following embodiments.

[0021] Embodiment.

[0022] See Figures 1 to 7, the riveting machine used in this embodiment for the flanging and forming of the top cover and the middle shell of the electric water pump includes an upper frame 1, a lower frame 2, a positioning and transplanting mechanism 3, a pressing and riveting mechanism 4, a left riveting head mechanism 5 and a right riveting head mechanism 6. The electric water pump is first transplanted to the riveting position through the positioning and transplanting mechanism 3, and the pressing cylinder 404 in the pressing and riveting mechanism 4 presses the electric water pump to ensure the uniqueness of its position. Then, after the left riveting head mechanism 5 and the right riveting head mechanism 6 reach the designated positions, the air supply is cut off, and the positioning cylinder 412 in the pressing and riveting mechanism 4 will position the left riveting head mechanism 5 and the right riveting head mechanism 6 to ensure their accuracy during the riveting process. Furthermore, the riveting cylinder 14 in the pressing and riveting mechanism 4 will drive the left riveting head mechanism 5 and the right riveting head mechanism 6 to complete the riveting of the top cover D and the middle shell Z of the electric water pump. Finally, the relevant mechanisms return to their original positions, and the positioning and transplanting mechanism 3 transplants the riveted electric water pump to the unloading position.

[0023] In this embodiment, the upper frame 1 matches the lower frame 2. The pressing and riveting mechanism 4 and the positioning and transplanting mechanism 3 are respectively fixed on the lower frame 2, and the left riveting head mechanism 5 and the right riveting head mechanism 6 are respectively fixed on the pressing and riveting mechanism 4.

[0024] The positioning and transplanting mechanism 3 in this embodiment includes a cylinder 31, a bottom plate 32, a slide rail 33, a conversion bottom plate 34, a product setting seat 35, a product orientation block 36, a slider mounting plate 37 and an ear plate 38. One end of the cylinder 31 is fixed to the bottom plate 32, and the piston rod in the cylinder 31 is floatingly connected to the slider mounting plate 37. The slider mounting plate 37 is movably arranged on the slide rail 33, and the slide rail 33 is fixed to the bottom plate 32. The conversion bottom plate 34 is installed on the slider mounting plate 37.

[0025] In this embodiment, the product setting seat 35 is installed on the conversion bottom plate 34, the product orientation block 36 is connected to the product setting seat 35, and the product setting seat 35 and the conversion bottom plate 34 are integrated; for changing different product models.

[0026] There are two ear plates 38 in this embodiment. The two ear plates 38 are arranged left and right on the middle shell Z, and the top cover D and the middle shell Z cooperate with each other.

[0027] In this embodiment, the pressing and riveting mechanism 4 includes a sliding shaft mounting plate 401, sliding shafts 402, an upper top plate 403, a pressing cylinder 404, support columns 405, floating bearings 406, an upper and lower floating plate 407, a pressing head connecting plate 408, a pressing head 409, positioning rods 410, connecting pieces 411, positioning cylinders 412, linear bearings 413, riveting cylinders 414, riveting cylinder floating heads 415, a detection and sensing assembly 416, a positioning rod mounting plate 417, and reinforcing ribs 418. There are four sliding shafts 402 and four linear bearings 413. The sliding shaft mounting plate 401 is connected to the four sliding shafts 402, and the four sliding shafts 402 are matched with the four linear bearings 413. There are two positioning cylinders 412, and both of the two positioning cylinders 412 are installed on the upper top plate 403. There are two positioning rods 410, and both of the two positioning rods 410 are fixed on the positioning rod mounting plate 417. There are four linear bearings 413, and all of the four linear bearings 413 are fixed on the upper top plate 403. The pressing cylinder 404 is installed on the upper top plate 403. There are two riveting cylinders 414, and both of the two riveting cylinders 414 are fixed on the upper top plate 403. The positioning rod mounting plate 417 is connected to the sliding shafts 402.

[0028] In this embodiment, the pressing head connecting plate 408 is connected to the pressing cylinder 404, the pressing head 409 is installed on the pressing head connecting plate 408, the riveting cylinder floating head 415 is connected to the riveting cylinder 414, and the riveting cylinder floating head 415 is floatingly connected to the connecting piece 411. In this embodiment, there are four floating bearings 406 and two connecting pieces 411. All of the four floating bearings 406 are fixed on the upper and lower floating plate 407, and both of the two connecting pieces 411 are installed on the upper and lower floating plate 407.

[0029] In this embodiment, there are four support columns 405. The upper ends of the support columns 405 are connected to the upper top plate 403, and the other ends of the support columns 405 are connected to the lower stage frame 2.

[0030] In this embodiment, the detection and sensing assembly 416 is installed on the lower stage frame 2, and reinforcing ribs 418 are provided on the upper and lower floating plate 407.

[0031] In this embodiment, the left riveting head mechanism 5 and the right riveting head mechanism 6 have the same structure. The left riveting head mechanism 5 includes a riveting head body 51, a slider member 52, a guide rail 53, a fixed block 54, a cylinder member 55, an adjusting member 56, a cylinder mounting plate 57, a floating joint 58, a riveting positioning hole 521, and a handle 511. The riveting head body 51 is fixed on the slider member 52. The slider member 52 is arranged on the guide rail 53 and can slide. The cylinder member 55 is fixed to the cylinder mounting plate 57, and the cylinder mounting plate 57 is installed on the fixed block 54. One end of the floating joint 58 is connected to the cylinder member 55, and the other end of the floating joint 58 is connected to the slider member 52 and can move.

[0032] In this embodiment, the adjusting member 56 is arranged on the upper and lower floating plate 407 in the pressing and riveting mechanism 4, and the positions of the left riveting head mechanism 5 and the right riveting head mechanism 6 can be adjusted.

[0033] In this embodiment, a riveting positioning hole 521 is arranged on the slider member 52, and the handle 511 is arranged on the riveting head body 51.

[0034] The functions of the riveting head body 51 in this embodiment are as follows: ① Different products can be changed; ② Different closing angles can be satisfied.

[0035] The working process of the riveting machine used for closing and forming the top cover and the middle shell of the electronic water pump in this embodiment is as follows: (S1) The positioning and transplanting mechanism 3 is in the material position (original position). The product (first the top cover and then the middle shell assembly) is manually placed into the product setting seat 35 in the positioning and transplanting mechanism 3, and then the angle is restricted by the product orientation block 36. Then, whether the product is in place is detected by the detection and sensing component 416. The product is brought into the riveting position by the cylinder 31, and the position is detected by the detection and sensing component 416 again.

[0036] (S2) The pressing cylinder 404 in the pressing and riveting mechanism 4 works to drive the pressing head 409 to press the product. The cylinder parts 55 in the left riveting head mechanism 5 and the right riveting head mechanism 6 work to drive the riveting positioning hole 521 on the slider member 52 to reach the working position. The positioning cylinder 412 works to drive the positioning rod 410 to cooperate with the riveting positioning hole 521 to ensure the consistency of the riveting position. At this time, the cylinder parts 55 in the left riveting head mechanism 5 and the right riveting head mechanism 6 are cut off from the air supply.

[0037] (S3) The riveting cylinder 414 acts, and the slider member 52 is pressed through the floating head 415 of the riveting cylinder, so that the upper and lower floating plate 407 drives the riveting head body 51 in the left riveting head mechanism 5 and the right riveting head mechanism 6 to achieve riveting.

[0038] (S4) The corresponding mechanisms are all reset. The positioning and transplanting mechanism 3 returns the product to the material position, and the operator takes the part, ending the entire riveting process.

[0039] Through the above description, those skilled in the art can already implement it.

[0040] In addition, it should be noted that for the specific embodiments described in this specification, the shapes, names, etc. of their parts and components can be different. The above content described in this specification is only an example of the structure of the present invention. Any equivalent changes or simple changes made according to the structure, features, and principles conceived in this invention patent are included within the protection scope of this invention patent. Those skilled in the technical field to which the present invention pertains can make various modifications, supplements, or use similar methods for substitution to the specific embodiments described, as long as they do not deviate from the structure of the present invention or exceed the scope defined by this claims, they should fall within the protection scope of the present invention.

Claims

1. A combined riveting machine for the closing and forming of the top cover and the middle shell of an electronic water pump, comprising an upper table frame (1) and a lower table frame (2), wherein the upper table frame (1) matches with the lower table frame (2), and is characterized in that: It also includes a positioning and transplanting mechanism (3), a pressing and riveting mechanism (4), a left riveting head mechanism (5) and a right riveting head mechanism (6). The pressing and riveting mechanism (4) and the positioning and transplanting mechanism (3) are respectively fixed on the lower bench (2), and the left riveting head mechanism (5) and the right riveting head mechanism (6) are respectively fixed on the pressing and riveting mechanism (4). The pressing and riveting mechanism (4) includes a sliding shaft mounting plate (401), an upper top plate (403), a pressing cylinder (404), an upper and lower floating plate (407), a pressing head connecting plate (408), a pressing head (409), a riveting cylinder floating head (415), a positioning rod mounting plate (417), multiple sliding shafts (402), multiple support columns (405), multiple floating bearings (406), multiple positioning rods (410), multiple connecting pieces (411), multiple positioning cylinders (412), multiple linear bearings (413) and multiple riveting cylinders (414). The sliding shaft mounting plate (401) is connected to the multiple sliding shafts (402), the multiple sliding shafts (402) are matched with the multiple linear bearings (413), the multiple positioning cylinders (412) are all installed on the upper top plate (403), the multiple positioning rods (410) are all fixed on the positioning rod mounting plate (417), the multiple linear bearings (413) are all fixed on the upper top plate (403), the pressing cylinder (404) is installed on the upper top plate (403), the multiple riveting cylinders (414) are all fixed on the upper top plate (403), the positioning rod mounting plate (417) is connected to the sliding shaft (402), the pressing head connecting plate (408) is connected to the pressing cylinder (404), the pressing head (409) is installed on the pressing head connecting plate (408), the riveting cylinder floating head (415) is connected to the riveting cylinder (414), the riveting cylinder floating head (415) is floatingly connected to the connecting piece (411), the multiple floating bearings (406) are all fixed on the upper and lower floating plate (407), the multiple connecting pieces (411) are all installed on the upper and lower floating plate (407), and the upper end of each support column (405) is connected to the upper top plate (403), and the other end of the support column (405) is connected to the lower bench (2). The left riveting head mechanism (5) and the right riveting head mechanism (6) have the same structure. The left riveting head mechanism (5) includes a riveting head body (51), a slider (52), a guide rail (53), a fixed block (54), a cylinder part (55), an adjusting part (56), a cylinder mounting plate (57), a floating joint (58), a riveting positioning hole (521) and a handle (511). The riveting head body (51) is fixed on the slider (52), the slider (52) is arranged on the guide rail (53) and can slide, the cylinder part (55) is fixed to the cylinder mounting plate (57), and the cylinder mounting plate (57) is installed on the fixed block (54). One end of the floating joint (58) is connected to the cylinder part (55), and the other end of the floating joint (58) is connected to the slider (52) and can move.The adjusting member (56) is arranged on the upper and lower floating plate (407) in the pressing and riveting mechanism (4), and can adjust the positions of the left riveting head mechanism (5) and the right riveting head mechanism (6); a riveting positioning hole (521) is arranged on the slider member (52), and the handle (511) is arranged on the riveting head body (51).

2. The riveting machine for flanging and forming the top cover and the middle shell of the electric water pump according to claim 1, wherein: The positioning and transplanting mechanism (3) includes a cylinder (31), a bottom plate (32), a slide rail (33), a conversion bottom plate (34), a product setting seat (35), a product orientation block (36), and a slider mounting plate (37). One end of the cylinder (31) is fixed to the bottom plate (32), and the piston rod in the cylinder (31) is floatingly connected to the slider mounting plate (37). The slider mounting plate (37) is movably arranged on the slide rail (33), and the slide rail (33) is fixed to the bottom plate (32). The conversion bottom plate (34) is mounted on the slider mounting plate (37), the product setting seat (35) is mounted on the conversion bottom plate (34), and the product orientation block (36) is connected to the product setting seat (35).

3. The riveting machine for the flanging and forming of the top cover and the middle shell of the electric water pump according to claim 1, wherein: The pressing and riveting mechanism (4) further includes a detection and sensing assembly (416), and the detection and sensing assembly (416) is mounted on the lower bench (2).

4. Working method of a combined riveting machine for the necking forming of the top cover and the middle shell of an electronic water pump, using the combined riveting machine for the necking forming of the top cover and the middle shell of an electronic water pump as described in any one of claims 1 to 3, characterized in that: The specific steps are as follows: (S1) The positioning and transplanting mechanism (3) is at the material position. Manually place the product into the product setting seat (35) in the positioning and transplanting mechanism (3), then limit the angle through the product orientation block (36), and then detect whether the product is in place through the detection and sensing assembly (416). Bring the product to the riveting position through the cylinder (31), and then detect the position through the detection and sensing assembly (416); (S2) The pressing cylinder (404) in the pressing and riveting mechanism (4) works to drive the pressing head (409) to press the product. The cylinder parts (55) in the left riveting head mechanism (5) and the right riveting head mechanism (6) work to drive the riveting positioning holes (521) on the slider parts (52) to reach the working position. The positioning cylinder (412) works to drive the positioning rod (410) to cooperate with the riveting positioning holes (521) to ensure the consistency of the riveting position. At this time, the cylinder parts (55) in the left riveting head mechanism (5) and the right riveting head mechanism (6) cut off the air supply; (S3) The riveting cylinder (414) acts, and presses the slider part (52) through the floating head (415) of the riveting cylinder, so that the upper and lower floating plates (407) drive the riveting head bodies (51) in the left riveting head mechanism (5) and the right riveting head mechanism (6) to perform riveting; (S4) The corresponding mechanisms are all reset, and the positioning and transplanting mechanism (3) returns the product to the material position, and the operator takes the part to end the entire riveting process.

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