CN110052543B - Rotary riveting equipment for drum bottom of pulsator drum of washing machine and rotary riveting method thereof - Google Patents
Rotary riveting equipment for drum bottom of pulsator drum of washing machine and rotary riveting method thereof Download PDFInfo
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- CN110052543B CN110052543B CN201910433700.2A CN201910433700A CN110052543B CN 110052543 B CN110052543 B CN 110052543B CN 201910433700 A CN201910433700 A CN 201910433700A CN 110052543 B CN110052543 B CN 110052543B
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- 238000005406 washing Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 15
- 238000003825 pressing Methods 0.000 claims abstract description 28
- 230000009471 action Effects 0.000 claims abstract description 11
- 238000009957 hemming Methods 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 230000001174 ascending effect Effects 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 1
- 235000017491 Bambusa tulda Nutrition 0.000 claims 1
- 241001330002 Bambuseae Species 0.000 claims 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 1
- 239000011425 bamboo Substances 0.000 claims 1
- 230000000712 assembly Effects 0.000 abstract description 7
- 238000000429 assembly Methods 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
- B21D39/031—Joining superposed plates by locally deforming without slitting or piercing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D55/00—Safety devices protecting the machine or the operator, specially adapted for apparatus or machines dealt with in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention relates to rotary riveting equipment for the bottom of a drum of a pulsator of a washing machine and a rotary riveting mode thereof, comprising a frame and a working platform at the top, wherein a weight box is arranged at the rear side of the working platform, a supporting die assembly driven by a servo motor to move up and down is arranged on a guide rail at the front side of the working platform, and a die core is arranged at the lower part of the supporting die assembly; a profiling disc is arranged on a working platform right below the mold core, and a clamping assembly, a positioning assembly and a plurality of spin riveting assemblies are circumferentially arranged on the profiling disc; a main motor is arranged under the weight box, and an output shaft of the main motor drives the mold core and the profiling disk to rotate together through a spline shaft and belt transmission. According to the rotary riveting device, the clamping assembly and the positioning assembly are adopted to pre-position the cylinder body from the outside, the cylinder body is supported from the inside through the supporting die assembly and the die core, and finally the rotary riveting connection of the cylinder body and the cylinder bottom of the pulsator of the washing machine is realized under the action of the main motor and the rotary riveting assembly, so that the rotary riveting efficiency is high, and the rotary riveting pressing quality is good.
Description
Technical Field
The invention relates to the technical field of washing machine assembly equipment, in particular to rotary riveting equipment for a drum bottom of a pulsator drum of a washing machine and a rotary riveting method thereof.
Background
In the prior art, the riveting mode of the drum bottom of the pulsator drum of the washing machine needs to turn the flanging of the pulsator drum and the drum bottom, then the rotating rolling of the wheels with the notches is carried out, the rotating buckling of the two layers of material sheets is carried out, and then the riveting is carried out through the pressing of the edge pressing wheels.
In the prior art, the inner cylinder and the upper cover and the lower cover are riveted, the inner cylinder and the upper cover and the lower cover which are connected together through the flange plates, the flange plates of the upper cover and the lower cover are fixed through the upper flange plates and the lower flange plates of the equipment, and radial force is applied to the flange plates of the upper cover and the lower cover simultaneously during operation, so that the inner cylinder is in a thin-wall cylindrical structure, and the two ends of the inner cylinder slightly deform inwards when being stressed at the upper side and the lower side, so that the appearance quality of a product is influenced.
Disclosure of Invention
The applicant provides rotary riveting equipment and a rotary riveting method for the drum bottom of the pulsator drum of the washing machine with reasonable structure aiming at the defects in the prior art, thereby omitting the preliminary work of flanging connection firstly, firmly positioning and protecting the drum body in the pressing process, avoiding the deformation of the drum body and greatly improving the production quality and the production efficiency.
The technical scheme adopted by the invention is as follows:
the rotary riveting equipment for the bottom of the drum of the pulsator drum of the washing machine comprises a frame, wherein a working platform is arranged at the top of the frame, a 'L' -shaped weight box is arranged at the rear side of the upper surface of the working platform, a guide rail is arranged on the front side of the working platform, a supporting die assembly sliding along the guide rail is arranged on the guide rail, the supporting die assembly is driven by a servo motor arranged at the top of the weight box and is connected with a balancing weight arranged in the weight box through a chain on a driving chain wheel, and a mold core is arranged at the lower part of the supporting die assembly; a main motor is arranged on a working platform right below the weight box, and an output shaft of the main motor is connected with a vertically arranged spline shaft; the working platform right below the mold core is provided with a profiling disk, the profiling disk and the mold core are driven by a main motor to synchronously rotate, the working platforms positioned on the left side and the right side of the profiling disk are symmetrically provided with clamping assemblies and a plurality of spin riveting assemblies, each spin riveting assembly comprises a spin riveting wheel, the spin riveting wheel is arranged along the radial direction of the profiling disk, and the axis of the spin riveting wheel is parallel to the axis of the profiling disk; and a positioning assembly is arranged on the working platform positioned in front of the side of the profiling disk.
As a further improvement of the above technical scheme:
the structure of the clamping component is as follows: the clamping cylinder is horizontally arranged above the first bracket, the [ -shaped clamping block is arranged at the end part of the clamping cylinder, the two parallel side edges of the clamping block are of an inward concave circular arc structure, and the circular arc axis is parallel to the axis of the profiling disc.
The structure of the spin riveting assembly is as follows: the device comprises a base fixedly mounted with a working platform, wherein a fixed block is mounted at one end of the upper surface of the base, a radial motor is mounted above the outer side of the fixed block through a connecting block, the output end of the radial motor is connected with a first screw rod through a first belt, and the first screw rod sequentially penetrates through the connecting block and the fixed block and is connected with a sliding block at the end part of the first screw rod; a first sliding rail is arranged on the base positioned at the inner side of the fixed block, and the sliding block is matched with the first sliding rail to realize sliding along the radial direction of the profiling disc; the side end face of the sliding block is provided with a spin riveting wheel through a [ -shaped block.
The rotary riveting wheel comprises a hemming wheel and a blank pressing wheel, the hemming wheel and the blank pressing wheel are arranged at intervals, a circle of arc-shaped grooves are formed in the circumferential side face of the hemming wheel, and the blank pressing wheel is of a disc-shaped structure.
The structure of the positioning component is as follows: the device comprises a second bracket which is fixedly arranged with a working platform and is I-shaped, a positioning cylinder is horizontally arranged above the second bracket, a profiling block is arranged at the end part of the positioning cylinder, and the profiling block moves along the radial direction of a profiling disk under the driving of the positioning cylinder.
The structure of the die supporting assembly is as follows: the device comprises a fixed cover which is in sliding connection with a guide rail, wherein a supporting cylinder is arranged in the fixed cover, a hollow main shaft is arranged in the supporting cylinder through a bearing, and a pull rod is arranged in the supporting cylinder in a penetrating manner; the lower end of the main shaft extends out of the supporting cylinder, and the end part of the main shaft is fixedly connected with the mold core through a flange; the top of the supporting cylinder is provided with a L-shaped supporting block, the upper end of the main shaft extends out of the supporting cylinder, the end part of the main shaft is rotationally connected with the supporting block through a bearing, the top of the supporting block is provided with a guide mechanism, a supporting die motor is fixedly arranged on the guide mechanism, a second screw rod is arranged in the center of the guide mechanism in a penetrating manner, the lower end of the second screw rod is fixedly connected with the top of the pull rod, and the upper end of the second screw rod is connected with the supporting die motor through a second belt; and a belt wheel is also arranged on the main shaft positioned in the supporting block.
The structure of the mold core is as follows: the device comprises a top disc, a middle disc and a bottom disc which divide the device into an upper area and a lower area, wherein a pull rod is arranged in the center of the top disc, the middle disc and the bottom disc in a penetrating way, the top disc is fixedly connected with the bottom of the support module, the top disc is connected with the middle disc through an upper equal-height column and a support column, and the middle disc is connected with the bottom disc through a lower equal-height column; a bushing seat is fixedly arranged in the center of the lower part of the top disk, a plurality of groups of uniformly distributed sliding rails II are fixedly arranged on the top disk positioned on the outer side of the bushing seat, a sliding block is arranged on each group of sliding rails II, and an arc-shaped inner cylinder supporting die is fixedly arranged on the outer side surface of each sliding block; the pull rod below the bushing seat is provided with a die supporting seat at a sliding interval, the circumferential direction of the die supporting seat is rotationally connected with the sliding block through a rotating shaft, the pull rod below the die supporting seat is also sleeved with a spring jacking block, and the spring jacking block is connected with the die supporting seat through a first spring; the die supporting wedge blocks are fixedly sleeved on the pull rods positioned between the middle disc and the chassis, a plurality of large rotary riveting die supporting dies and small rotary riveting die supporting dies are installed at intervals matched with inclined planes of the die supporting wedge blocks in the circumferential direction, a plurality of T-shaped blocks are fixedly installed on the upper surface of the chassis in a ring-shaped centripetal mode, grooves for horizontally sliding the T-shaped blocks are formed in the middle parts of the large rotary riveting die supporting dies and the small rotary riveting die supporting dies, a spring II is further installed in each groove of the end parts of the T-shaped blocks, through holes for vertically sliding the die supporting wedge blocks are formed in the middle parts of the chassis, and a bottom end cover is fixedly installed below the die supporting dies.
The profiling disc penetrates through the working platform, and the bottom of the profiling disc is connected with the bottom end of the spline shaft through a toothed chain; and the support module assembly is connected with the top end of the spline shaft through a belt III.
A control box is further arranged at the rear side of the working platform; the working platform is characterized in that a protective cover is arranged around the working platform upwards, movable windows for maintenance are arranged on the left side and the right side of the protective cover, an open window is arranged in front of the protective cover, and safety gratings are arranged on the two sides of the window.
A spin riveting method utilizing spin riveting equipment for the bottom of a pulsator drum of a washing machine comprises the following operation steps:
the first step: preparing materials, namely preparing a cylinder body and a cylinder bottom; the cylinder body comprises a groove;
and a second step of: in an initial state, the servo motor drives the mold core to return to the highest stroke point, and the positioning cylinder and the clamping cylinder return to the minimum stroke point; the die supporting motor drives the pull rod to move downwards to an initial state through the second screw rod, and the die core is contracted;
and a third step of: feeding and pre-positioning, placing the cylinder bottom onto the profiling disk, placing the cylinder body onto the cylinder bottom, rotating the cylinder body to enable a groove on the cylinder body to be aligned with the direction of the positioning cylinder, manually poking the positioning cylinder, and driving the profiling block to move along the radial direction of the profiling disk and clamp into the groove;
fourth step: positioning, namely pressing a starting button, and driving the clamping blocks to move along the radial direction of the profiling disc by two symmetrical clamping cylinders to clamp the cylinder body; the profiling block radially retreats under the drive of the positioning cylinder; under the driving of a servo motor, a mold core on a fixed cover descends into a cylinder body, a second belt drives a screw rod to rotate, and then a pull rod is driven to ascend, a spring jacking block drives a support mold seat to ascend along the pull rod through a first spring, so that a sliding block rotationally connected with the support mold seat moves outwards along the radial direction of a sliding rail II, and then the support mold of the inner cylinder is driven to move outwards and tightly support the inner cylinder of the cylinder body, a support mold wedge block fixedly connected with the pull rod is driven to ascend in the ascending process of the pull rod, and a large spin riveting support mold and a small spin riveting support mold move outwards along the radial direction of a T-shaped block under the action of the inclined plane of the support mold wedge block of the ascending support mold until the large spin riveting support mold and the small spin riveting support mold move to the straight edge surface of the support mold wedge block, so that the part to be screwed below the cylinder body is completely propped, and the second spring is in a compressed state; the two clamping cylinders retract;
fifth step: spin riveting, wherein a main motor drives a cylinder body on a mold core and a cylinder bottom on a profiling disk to rotate simultaneously; the hemming wheel and the blank holder wheel are driven by respective radial motors to approach along the radial direction of the profiling disc and contact the contact edges of the cylinder body and the cylinder bottom, and rotate together with the rotary riveting wheel after the rotary riveting wheel touches the edges, and the contact edges are subjected to inward radial force and curled under the action of arc grooves of the hemming wheel; completing spin riveting;
sixth step: resetting and blanking, stopping rotating the main motor, driving the rotary riveting wheel to retract by the radial motor, simultaneously driving the pull rod to descend by the die supporting motor through the screw rod II, driving the die supporting seat to descend and driving the sliding block to move inwards along the radial direction of the sliding rail II, contracting the inner cylinder die supporting seat, supporting the die wedge block to descend, enabling the large rotary riveting die and the small rotary riveting die to move inwards to completely contract along the radial direction of the T-shaped block under the action of the pressed spring II, completely loosening the tightly supported cylinder body, and driving the die core to ascend to the highest position by the servo motor; taking down the spin-riveting finished product;
seventh step: the bottom and the body are placed and the third to sixth steps are repeated.
The beneficial effects of the invention are as follows:
the invention has compact and reasonable structure and convenient operation, the screw rod is driven to rotate by the second belt through the die supporting motor, the screw rod ascends along the guide mechanism when rotating, and then the pull rod is pulled to ascend, the inner cylinder die supporting, the large rotary riveting die supporting and the small rotary riveting die supporting are driven to be outwards stretched in the ascending process of the pull rod, the cylinder body and the lower edge of the cylinder body are firmly supported from the inside in two steps, and the deformation of the cylinder body due to stress in the riveting and pressing process is avoided; the output shaft of the main motor drives the mold core and the profiling disk to rotate together through the spline shaft, the belt and the toothed chain, so that the synchronous rotation of the cylinder body and the cylinder bottom is ensured, and the edge lamination of the two is accurate and does not deviate; the spin riveting assemblies are symmetrically arranged relative to the radial direction of the profiling disk, spin riveting wheels on the multiple groups of spin riveting assemblies are driven by respective motors through a belt and a screw rod to realize radial movement, so that the distance between the spin riveting wheels and the profiling disk can be adjusted, the flexibility of the device in use is improved, and the concentricity of the spin riveting wheels relative to the profiling disk during working is greatly ensured; the edge pressing wheel and the edge curling wheel are arranged at intervals, the edge pressing wheel moves radially and applies force to the barrel bottom and the barrel body during pressing, the circumferential side surface of the edge curling wheel is provided with an arc-shaped groove, the edge pressing wheel is of a disc-shaped structure, the edge pressing wheel achieves the function of pressing the contact edge of the barrel bottom and the barrel body upwards Fang Shebian, the edge curling wheel further turns the edge folding inwards on the basis of edge folding of the edge pressing wheel, the reliability and uniformity of spin riveting pressing are achieved through the action of the edge folding wheel, and the pressing strength is guaranteed;
the cylinder body is pre-positioned by adopting the positioning component and the clamping component, and then is positioned by the mold core, so that the absolute consistency of the cylinder bottom placed on the profiling disk and the center of the cylinder body is ensured;
according to the invention, the balancing weight is connected with the fixed cover through the transmission chain, and the arrangement of the balancing weight reduces the load of the servo motor and ensures uniform motion of the fixed cover;
according to the invention, the protective cover is arranged on the periphery of the working platform upwards, movable windows for maintenance are arranged on the left side and the right side, an open window is arranged in front of the working platform, and safety gratings are arranged on the two sides of the window, so that the convenience of equipment maintenance is realized on the premise of ensuring the operation safety of operators.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the present invention (the shield is omitted).
FIG. 3 is a schematic view of the installation of the weight box, the die supporting assembly, the profiling disk, etc. on the working platform of the present invention.
Fig. 4 is another view of fig. 3.
FIG. 5 is a schematic view of the installation of the positioning assembly, clamping assembly, spin-rivet assembly, profiling disk, etc. with the frame of the present invention.
Fig. 6 is another view of fig. 5.
Fig. 7 is a partial enlarged view of a portion a in fig. 6.
Fig. 8 is a schematic structural view of the spin-rivet assembly of the present invention.
Fig. 9 is a schematic structural view of the rivet assembly according to the present invention (another view).
Fig. 10 is a schematic structural view of the hemming wheel of the present invention.
FIG. 11 is a schematic view of the installation of the support mold assembly and the mold core of the present invention (omitting the fixed cover).
FIG. 12 is a schematic view of the installation of the mold supporting assembly and the mold core of the present invention (half-cut, omitting the fixed cover, the mold supporting motor, the second belt, the second screw, the guide mechanism, and the supporting block).
FIG. 13 is a schematic view of a mold core according to the present invention.
FIG. 14 is a schematic view of the present invention in a pre-positioning configuration of the work initial positioning assembly.
Fig. 15 is a partial enlarged view of the portion B in fig. 14.
FIG. 16 is a schematic view of the present invention in a configuration during clamping of the working primary clamping assembly.
Fig. 17 is a partial enlarged view of a portion C in fig. 16.
Fig. 18 is a schematic view of the structure of the present invention when fully positioned prior to clinching.
Fig. 19 is a partial enlarged view of a portion D in fig. 18.
Wherein: 1. a frame; 101. a working platform; 2. profiling disc; 3. a positioning assembly; 301. a second bracket; 302. positioning a cylinder; 303. profiling blocks; 4. a clamping assembly; 401. a first bracket; 402. a clamping cylinder; 403. a clamping block; 5. a spin riveting assembly; 501. a base; 502. a first slide rail; 503. a fixed block; 504. a connecting block; 505. a first belt; 506. a radial motor; 507. a sliding block; 508. "[ -shaped blocks; 509. a first screw rod; 6. a die supporting assembly; 601. a die supporting motor; 602. a second belt; 603. a second screw rod; 604. a guide mechanism; 605. a support block; 606. a support cylinder; 607. a main shaft; 608. a belt wheel; 7. a mold core; 701. a pull rod; 702. a top plate; 703. a middle plate; 704. a chassis; 705. an upper contour column; 706. a support column; 707. a lower contour column; 708. a bushing seat; 709. a second slide rail; 710. a slide block; 711. inner cylinder supporting die; 712. a spring ejector block; 713. a first spring; 714. a die supporting wedge block; 715. a T-shaped block; 716. large spin riveting supporting die; 717. a second spring; 718. small spin riveting supporting die; 719. a bottom end cap; 720. supporting a die holder; 8. a fixed cover; 9. a drive sprocket; 10. a weight box; 11. a guide rail; 12. a servo motor; 13. a crimping wheel; 1301. an arc-shaped groove; 14. edge pressing wheels; 15. balancing weight; 16. a third belt; 17. toothed chain; 18. a spline shaft; 19. a main motor; 20. a protective cover; 21. a barrel body; 2101. a groove; 22. a cylinder bottom.
Detailed Description
The following describes specific embodiments of the present invention with reference to the drawings.
As shown in fig. 1, 2, 3 and 4, the rotary riveting device for the drum bottom of the pulsator drum of the washing machine of the embodiment comprises a frame 1, wherein a working platform 101 is arranged at the top of the frame, a 'U' -shaped weight box 10 is arranged at the rear side of the upper surface of the working platform 101, a guide rail 11 is arranged on the front side of the frame, a supporting module component 6 sliding along the guide rail 11 is arranged on the guide rail 11, the supporting module component 6 is driven by a servo motor 12 arranged at the top of the weight box 10 and is connected with a balancing weight 15 arranged in the weight box 10 through a chain on a driving chain wheel 9, and a mold core 7 is arranged at the lower part of the supporting module component 6; a main motor 19 is arranged on a working platform 101 positioned right below the weight box 10, and an output shaft of the main motor is connected with a vertically arranged spline shaft 18; a profiling disc 2 is arranged on a working platform 101 positioned right below the mould core 7, and the profiling disc 2 and the mould core 7 synchronously rotate under the drive of a main motor 19; as shown in fig. 5, 6 and 7, the clamping assemblies 4 and the spin riveting assemblies 5 are symmetrically arranged on the working platforms 101 positioned on the left side and the right side of the profiling disk 2, each spin riveting assembly 5 comprises a spin riveting wheel, the spin riveting wheel is arranged along the radial direction of the profiling disk 2, and the axis of the spin riveting wheel is parallel to the axis of the profiling disk 2; a positioning assembly 3 is arranged on the working platform 101 positioned at the side front of the profiling disk 2.
The structure of the clamping assembly 4 is as follows: the device comprises a first bracket 401 which is fixedly arranged on a working platform 101 and is I-shaped, a clamping cylinder 402 is horizontally arranged above the first bracket 401, a clamping block 403 which is shaped like a Chinese character' is arranged at the end part of the clamping cylinder 402, the two parallel sides of the clamping block 403 are of concave arc structures, and the arc axis is parallel to the axis of the profiling disk 2.
As shown in fig. 8 and 9, the rivet assembly 5 has the structure that: the device comprises a base 501 fixedly arranged with a working platform 101, wherein a fixed block 503 is arranged at one end of the upper surface of the base 501, a radial motor 506 is arranged above the outer side of the fixed block 503 through a connecting block 504, the output end of the radial motor 506 is connected with a first lead screw 509 through a first belt 505, the first lead screw 509 sequentially passes through the connecting block 504 and the fixed block 503, and a sliding block 507 is connected at the end part of the first lead screw 509; a first slide rail 502 is arranged on the base 501 positioned on the inner side of the fixed block 503, and the sliding block 507 is matched with the first slide rail 502 to realize sliding along the radial direction of the profiling disk 2; the side end face of the sliding block 507 is provided with a spin riveting wheel through a [ -shaped block 508.
The riveting wheel comprises a hemming wheel 13 and a blank holder 14, wherein the hemming wheel 13 and the blank holder 14 are arranged at intervals, as shown in fig. 10, a circle of arc-shaped grooves 1301 are formed in the circumferential side surface of the hemming wheel 13, and the blank holder 14 is in a disc-shaped structure.
As shown in fig. 7, the positioning assembly 3 has the following structure: the device comprises a second bracket 301 which is fixedly arranged with the working platform 101 and is I-shaped, a positioning cylinder 302 is horizontally arranged above the second bracket 301, a profiling block 303 is arranged at the end part of the positioning cylinder 302, and the profiling block 303 moves along the radial direction of the profiling disk 2 under the driving of the positioning cylinder 302.
As shown in fig. 11 and 12, the die supporting assembly 6 has the structure that: the device comprises a fixed cover 8 which is in sliding connection with a guide rail 11, wherein a supporting cylinder 606 is arranged in the fixed cover 8, a hollow main shaft 607 is arranged in the supporting cylinder 606 through a bearing, and a pull rod 701 is arranged in the main shaft 607; the lower end of the main shaft 607 extends out of the supporting cylinder 606 and the end part is fixedly connected with the mold core 7 through a flange; the top of the supporting cylinder 606 is provided with a 'L' -shaped supporting block 605, the upper end of the main shaft 607 extends out of the supporting cylinder 606, the end part of the main shaft 607 is rotationally connected with the supporting block 605 through a bearing, the top of the supporting block 605 is provided with a guide mechanism 604, the guide mechanism 604 is fixedly provided with a mold supporting motor 601, the center of the guide mechanism 604 is provided with a second screw rod 603 in a penetrating way, the lower end of the second screw rod 603 is fixedly connected with the top of the pull rod 701, and the upper end of the second screw rod 603 is connected with the mold supporting motor 601 through a second belt 602; a belt wheel 608 is also arranged on the main shaft 607 in the supporting block 605, and the belt wheel 608 realizes the rotation of the main shaft 607 driven by the main motor 19 through a belt III 16.
As shown in fig. 13, the mold core 7 has the structure that: the device comprises a top disc 702, a middle disc 703 and a bottom disc 704 which divide the device into an upper area and a lower area, wherein a pull rod 701 is arranged in the center of the top disc 702, the middle disc 703 and the bottom disc 704 in a penetrating way, the top disc 702 is fixedly connected with the bottom of the support module 6, the top disc 702 is connected with the middle disc 703 through an upper equal-height column 705 and a support column 706, and the middle disc 703 is connected with the bottom disc 704 through a lower equal-height column 707; a bushing seat 708 is fixedly arranged in the center of the lower part of the top disk 702, a plurality of groups of slide rails II 709 which are uniformly distributed are fixedly arranged on the top disk 702 which is positioned outside the bushing seat 708, a sliding block 710 is arranged on a single group of slide rails II 709, and an arc-shaped inner barrel supporting die 711 is fixedly arranged on the outer side surface of the sliding block 710; the pull rod 701 positioned below the bushing seat 708 is provided with a die supporting seat 720 at a sliding interval, the circumference of the die supporting seat 720 is rotationally connected with the sliding block 710 through a rotating shaft, the pull rod 701 positioned below the die supporting seat 720 is also sleeved with a spring jacking block 712, and the spring jacking block 712 is connected with the die supporting seat 720 through a first spring 713; the pull rod 701 positioned between the middle disc 703 and the chassis 704 is fixedly sleeved with a supporting die wedge 714, a plurality of large rotary riveting supporting dies 716 and small rotary riveting supporting dies 718 are installed at intervals matched with the inclined surfaces of the supporting die wedge 714 in the circumferential direction, a plurality of T-shaped blocks 715 are fixedly installed on the upper surface of the chassis 704 in an annular centripetal mode, grooves for horizontally sliding the T-shaped blocks 715 are formed in the middle parts of the large rotary riveting supporting dies 716 and the small rotary riveting supporting dies 718, a spring 717 is further installed in the grooves at the end parts of the T-shaped blocks 715, through holes for vertically sliding the supporting die wedge 714 are formed in the middle part of the chassis 704, and a bottom end cover 719 is fixedly installed below.
The profiling disk 2 penetrates through the working platform 101, and the bottom of the profiling disk is connected with the bottom end of the spline shaft 18 through the toothed chain 17; the support module 6 is connected with the top end of the spline shaft 18 through a third belt 16; the profiling disk 2 and the mould core 7 are driven by a main motor 19 to realize synchronous rotation.
A control box is also arranged at the rear side of the working platform 101; the working platform 101 is provided with a protective cover 20 upwards at the periphery, movable windows for maintenance are arranged at the left and right sides of the protective cover 20, an open window is arranged at the front, and safety gratings are arranged at the two sides of the window.
The spin riveting method utilizing spin riveting equipment for the bottom of a pulsator drum of a washing machine comprises the following operation steps:
the first step: preparing a barrel 21 and a barrel bottom 22; the barrel 21 includes a recess 2101;
and a second step of: in the initial state, the servo motor 12 drives the mold core 7 to return to the highest stroke point, and the positioning cylinder 302 and the clamping cylinder 402 return to the minimum stroke point; the die supporting motor 601 drives the pull rod 701 to move downwards to an initial state through the second screw rod 603, and the die core 7 is contracted;
and a third step of: feeding and pre-positioning, placing the cylinder bottom 22 on the profiling disk 2, placing the cylinder body 21 on the cylinder bottom 22, rotating the cylinder body 21 to align the groove 2101 on the cylinder body with the direction of the positioning cylinder 302, manually stirring the positioning cylinder 302, and driving the profiling block 303 to move along the radial direction of the profiling disk 2 and clamp into the groove 2101, as shown in fig. 14 and 15;
fourth step: positioning, namely pressing a start button, and driving a clamping block 403 to move along the radial direction of the profiling disc 2 by two symmetrical clamping cylinders 402 to clamp the cylinder body 21; the profiling block 303 is radially retracted under the drive of the positioning cylinder 302 as shown in fig. 16 and 17; under the driving of a servo motor 12, a mold core 7 on a fixed cover 8 descends into a cylinder 21, a second screw rod 603 is driven by a second belt 602 by a mold supporting motor 601 so as to drive a pull rod 701 to ascend, a first spring 713 drives a mold supporting seat 720 to ascend along the pull rod 701 by a first spring 713, a sliding block 710 rotationally connected with the mold supporting seat 720 moves radially outwards along a second slide rail 709 so as to drive an inner cylinder mold supporting seat 711 to move radially outwards and tightly support the inner cylinder of the cylinder 21, a mold supporting wedge 714 fixedly connected with the inner cylinder mold supporting seat is also driven to ascend in the ascending process of the pull rod 701, and a large spin riveting mold 716 and a small spin riveting mold supporting seat 718 move radially outwards along a T-shaped block 715 under the action of the inclined surface of the upward mold supporting wedge 714 until the large spin riveting mold supporting seat 716 and the small spin riveting mold supporting seat 718 move relatively to the mold supporting seat 714 to the straight edge surface of the mold supporting seat so as to be completely stretched, and then the part to be riveted below the cylinder 21 is tightly supported, and the second spring 717 is in a compressed state; the two clamping cylinders 402 retract; as shown in fig. 18 and 19;
fifth step: spin riveting, the main motor 19 drives the cylinder body 21 on the mold core 7 and the cylinder bottom 22 on the profiling disk 2 to rotate simultaneously; the hemming wheel 13 and the blank holder 14 are driven by respective radial motors 506 to approach and contact the contact edges of the cylinder 21 and the cylinder bottom 22 along the radial direction of the profiling disc 2, and rotate together with the spin riveting wheel after the spin riveting wheel touches the edges, and the contact edges are subjected to inward radial force and curled under the action of arc grooves 1301 of the hemming wheel 13; completing spin riveting;
sixth step: resetting and blanking, stopping the main motor 19 from rotating, driving the rotary riveting wheel to retract by the radial motor 506, driving the pull rod 701 to descend by the die supporting motor 601 through the screw rod II 603, driving the sliding block 710 to move inwards in the radial direction along the slide rail II 709, shrinking the inner cylinder supporting die 711, driving the die supporting wedge block 714 to descend, enabling the large rotary riveting supporting die 716 and the small rotary riveting supporting die 718 to move inwards in the radial direction to completely shrink along the T-shaped block 715 under the action of the pressed spring II 717, and completely loosening the tightly supported cylinder 21, and driving the die core 7 to ascend to the highest position by the servo motor 12; taking down the spin-riveting finished product;
seventh step: the bottom 22 and the body 21 are placed and the third to sixth steps of the operation cycle are repeated.
The invention omits the preliminary work of flanging connection in the prior art, realizes the direct riveting and pressing of the cylinder body 21 and the cylinder bottom 22, avoids the deformation of the cylinder body 21 in the riveting process, ensures the accurate pressing of the edges of the cylinder body 21 and the cylinder bottom 22, and has good pressing quality and high efficiency.
The above description is intended to illustrate the invention and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the invention.
Claims (7)
1. The utility model provides a washing machine impeller section of thick bamboo barrel head rivets equipment soon, includes frame (1), and work platform (101) are installed at its top, and weight box (10) of "L" shape are installed to work platform (101) upper surface rear side, installs guide rail (11) on its leading flank, its characterized in that: the die supporting assembly (6) sliding along the guide rail (11) is arranged on the guide rail, the die supporting assembly (6) is driven by a servo motor (12) arranged at the top of the weight box (10) and is connected with a balancing weight (15) arranged in the weight box (10) through a chain on a driving chain wheel (9), and a die core (7) is arranged at the lower part of the die supporting assembly (6); a main motor (19) is arranged on a working platform (101) positioned right below the weight box (10), and an output shaft of the main motor is connected with a vertically arranged spline shaft (18); the working platform (101) right below the mold core (7) is provided with a profiling disk (2), the profiling disk (2) and the mold core (7) are driven by a main motor (19) to synchronously rotate, the working platform (101) on the left side and the right side of the profiling disk (2) is symmetrically provided with a clamping component (4) and a plurality of spin riveting components (5), each spin riveting component (5) comprises a spin riveting wheel, and the spin riveting wheels are arranged along the radial direction of the profiling disk (2) and the axis of each spin riveting wheel is parallel to the axis of the profiling disk (2); a positioning component (3) is arranged on the working platform (101) positioned at the side front of the profiling disk (2); the rotary riveting wheel comprises a hemming wheel (13) and a blank pressing wheel (14), wherein the hemming wheel (13) and the blank pressing wheel (14) are arranged at intervals, a circle of arc-shaped grooves (1301) are formed in the circumferential side surface of the hemming wheel (13), and the blank pressing wheel (14) is of a disc-shaped structure; the structure of the die supporting assembly (6) is as follows: comprises a fixed cover (8) which is in sliding connection with a guide rail (11), a supporting cylinder (606) is arranged in the fixed cover (8), a hollow main shaft (607) is arranged in the supporting cylinder (606) through a bearing, and a pull rod (701) is arranged in the main shaft (607) in a penetrating way; the lower end of the main shaft (607) extends out of the supporting cylinder (606) and the end part is fixedly connected with the mold core (7) through a flange; the top of the supporting cylinder (606) is provided with an L-shaped supporting block (605), the upper end of the main shaft (607) extends out of the supporting cylinder (606) and the end part of the main shaft is rotationally connected with the supporting block (605) through a bearing, the top of the supporting block (605) is provided with a guide mechanism (604), the guide mechanism (604) is fixedly provided with a die supporting motor (601), the center of the guide mechanism (604) is provided with a second screw rod (603) in a penetrating way, the lower end of the second screw rod (603) is fixedly connected with the top of the pull rod (701), and the upper end of the second screw rod (603) is connected with the die supporting motor (601) through a second belt (602); a belt wheel (608) is also arranged on the main shaft (607) positioned in the supporting block (605); the structure of the mold core (7) is as follows: the device comprises a top disc (702), a middle disc (703) and a bottom disc (704) which divide the device into an upper area and a lower area, wherein a pull rod (701) is arranged penetrating through the centers of the top disc (702), the middle disc (703) and the bottom disc (704), the top disc (702) is fixedly connected with the bottom of a support module assembly (6), the top disc (702) is connected with the middle disc (703) through an upper equal-height column (705) and a support column (706), and the middle disc (703) is connected with the bottom disc (704) through a lower equal-height column (707); a bushing seat (708) is fixedly arranged in the center of the lower part of the top disc (702), a plurality of groups of sliding rails II (709) which are uniformly distributed are fixedly arranged on the top disc (702) which is positioned at the outer side of the bushing seat (708), a sliding block (710) is arranged on the single group of sliding rails II (709), and an arc-shaped inner barrel supporting die (711) is fixedly arranged on the outer side surface of the sliding block (710); a die supporting seat (720) is arranged on the pull rod (701) below the bushing seat (708) at intervals in a sliding way, the circumferential direction of the die supporting seat (720) is rotationally connected with the sliding block (710) through a rotating shaft, a spring jacking block (712) is sleeved on the pull rod (701) below the die supporting seat (720), and the spring jacking block (712) is connected with the die supporting seat (720) through a first spring (713); the die supporting wedge block (714) is fixedly sleeved on the pull rod (701) positioned between the middle disc (703) and the bottom disc (704), a plurality of large rotary riveting supporting dies (716) and small rotary riveting supporting dies (718) are installed at intervals matching the circumferential direction of the die supporting wedge block (714) and the inclined planes of the die supporting wedge block, a plurality of T-shaped blocks (715) are fixedly installed on the upper surface of the bottom disc (704) in a ring-shaped centripetal mode, the middle parts of the large rotary riveting supporting dies (716) and the small rotary riveting supporting dies (718) are provided with grooves for horizontally sliding the T-shaped blocks (715), springs II (717) are further installed in the grooves at the end parts of the T-shaped blocks (715), through holes for vertically sliding the die supporting wedge blocks (714) are formed in the middle part of the bottom disc (704), and bottom end covers (719) are fixedly installed below.
2. The rotary riveting device for the bottom of a pulsator drum of a washing machine as claimed in claim 1, wherein: the structure of the clamping component (4) is as follows: the device comprises a first bracket (401) which is fixedly arranged with a working platform (101) and is I-shaped, a clamping cylinder (402) is horizontally arranged above the first bracket (401), and a [ -shaped clamping block (403) is arranged at the end part of the clamping cylinder (402).
3. The rotary riveting device for the bottom of a pulsator drum of a washing machine as claimed in claim 1, wherein: the structure of the spin riveting assembly (5) is as follows: the device comprises a base (501) fixedly mounted with a working platform (101), wherein a fixed block (503) is mounted at one end of the upper surface of the base (501), a radial motor (506) is mounted above the outer side of the fixed block (503) through a connecting block (504), the output end of the radial motor (506) is connected with a first lead screw (509) through a first belt (505), the first lead screw (509) sequentially penetrates through the connecting block (504) and the fixed block (503), and a sliding block (507) is connected at the end part of the first lead screw; a first slide rail (502) is arranged on the base (501) positioned at the inner side of the fixed block (503), and the sliding block (507) is matched with the first slide rail (502) to realize sliding along the radial direction of the profiling disc (2); the side end surface of the sliding block (507) is provided with a spin riveting wheel through a [ -shaped block (508).
4. The rotary riveting device for the bottom of a pulsator drum of a washing machine as claimed in claim 1, wherein: the structure of the positioning component (3) is as follows: the device comprises a bracket II (301) which is fixedly arranged with a working platform (101) and is shaped like an I, a positioning cylinder (302) is horizontally arranged above the bracket II (301), a profiling block (303) is arranged at the end part of the positioning cylinder (302), and the profiling block (303) moves along the radial direction of a profiling disc (2) under the driving of the positioning cylinder (302).
5. The rotary riveting device for the bottom of a pulsator drum of a washing machine as claimed in claim 1, wherein: the profiling disc (2) penetrates through the working platform (101), and the bottom of the profiling disc is connected with the bottom end of the spline shaft (18) through a toothed chain (17); the supporting die assembly (6) is connected with the top end of the spline shaft (18) through a belt III (16).
6. The rotary riveting device for the bottom of a pulsator drum of a washing machine as claimed in claim 1, wherein: a control box is further arranged at the rear side of the working platform (101); the working platform (101) is provided with a protective cover (20) upwards around, movable windows for maintenance are arranged on the left side and the right side of the protective cover (20), an open window is arranged in front of the protective cover, and safety gratings are arranged on the two sides of the window.
7. A spin riveting method using the spin riveting device for the bottom of the pulsator drum of the washing machine as claimed in claim 1, characterized in that: the method comprises the following operation steps:
the first step: preparing a barrel (21) and a barrel bottom (22); the barrel (21) comprises a groove (2101);
and a second step of: in an initial state, the servo motor (12) drives the mold core (7) to return to the highest stroke point, and the positioning cylinder (302) and the clamping cylinder (402) return to the minimum stroke point; the die supporting motor (601) drives the pull rod (701) to descend to an initial state through a screw rod II (603), and the die core (7) is contracted;
and a third step of: feeding and pre-positioning, placing a cylinder bottom (22) on a profiling disc (2), placing a cylinder body (21) on the cylinder bottom (22), rotating the cylinder body (21) to enable a groove (2101) on the cylinder body to be aligned with the direction of a positioning cylinder (302), manually stirring the positioning cylinder (302), and driving a profiling block (303) to move along the radial direction of the profiling disc (2) and clamp into the groove (2101);
fourth step: positioning, namely pressing a starting button, and driving a clamping block (403) to move along the radial direction of the profiling disc (2) by two symmetrical clamping cylinders (402) to clamp a cylinder body (21); the profiling block (303) is driven by the positioning cylinder (302) to retract radially; under the driving of a servo motor (12), a mold core (7) on a fixed cover (8) descends into a cylinder body (21), a mold supporting motor (601) drives a screw rod II (603) to rotate through a belt II (602) so as to drive a pull rod (701) to ascend, a spring jacking block (712) drives a mold supporting seat (720) to ascend along the pull rod (701) through a spring I (713), a sliding block (710) rotationally connected with the mold supporting seat (720) radially outwards moves along a slide rail II (709), the inner cylinder mold supporting seat (711) is driven to radially outwards move and tightly support the inner cylinder of the cylinder body (21), a mold supporting (714) fixedly connected with the mold supporting seat is also driven to ascend in the ascending process of the pull rod (701), and a large spin riveting mold supporting seat (716) and a small spin riveting mold supporting seat (714) radially outwards move along a T-shaped block (715) under the action of an inclined plane of the ascending mold supporting wedge (714) until the large spin supporting seat (716) and the small spin riveting mold supporting seat (718) relatively move along the slide rail II (709) to completely support the straight side of the cylinder body (21), and then the large spin riveting mold supporting seat (714) is in a state of being completely compressed by the spring II; the two clamping cylinders (402) are retracted;
fifth step: spin riveting, wherein a main motor (19) drives a cylinder body (21) on a mold core (7) and a cylinder bottom (22) on a profiling disk (2) to rotate simultaneously; the hemming wheel (13) and the edge pressing wheel (14) are driven by respective radial motors (506) to approach along the radial direction of the profiling disc (2) and contact the contact edges of the cylinder body (21) and the cylinder bottom (22), and the contact edges are subjected to inward radial force and curled under the action of arc grooves (1301) of the hemming wheel (13); completing spin riveting;
sixth step: resetting and blanking, wherein a main motor (19) stops rotating, a radial motor (506) drives a spin riveting wheel to retract, a die supporting motor (601) drives a pull rod (701) to descend through a screw rod II (603), a die supporting seat (720) descends and drives a sliding block (710) to move inwards along a sliding rail II (709) in the radial direction, an inner cylinder supporting die (711) contracts, a die supporting wedge block (714) descends, a large spin riveting supporting die (716) and a small spin riveting supporting die (718) move inwards to completely contract along a T-shaped block (715) in the radial direction under the action of a compressed spring II (717), a tightly supported cylinder body (21) is completely loosened, and a die core (7) ascends to the highest position under the driving of a servo motor (12); taking down the spin-riveting finished product;
seventh step: the bottom (22) and the body (21) are placed and the third to sixth steps of operation cycle work are repeated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910433700.2A CN110052543B (en) | 2019-05-23 | 2019-05-23 | Rotary riveting equipment for drum bottom of pulsator drum of washing machine and rotary riveting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910433700.2A CN110052543B (en) | 2019-05-23 | 2019-05-23 | Rotary riveting equipment for drum bottom of pulsator drum of washing machine and rotary riveting method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111266515B (en) * | 2020-02-14 | 2021-12-24 | 无锡艾度科技有限公司 | Full-automatic spin riveting machine and using method thereof |
| CN112589039A (en) * | 2020-11-23 | 2021-04-02 | 苏州凯图特自动化有限公司 | Multi-position spin riveting machine |
| CN114042715B (en) * | 2021-11-02 | 2023-05-23 | 无锡艾度科技有限公司 | Cleaning method of full-automatic cleaning device of oil drum |
| CN114618227A (en) * | 2022-03-24 | 2022-06-14 | 张安辉 | Quick-release concentration equipment for processing silica sol modified building exterior wall coating |
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