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CN-121972945-A - Kitchen fan magnesium alloy part riveting set

CN121972945ACN 121972945 ACN121972945 ACN 121972945ACN-121972945-A

Abstract

The invention relates to a kitchen fan magnesium alloy part riveting device, which belongs to the technical field of fan assembly, and comprises a machine body, a rotary workbench, a supporting frame, a pressing driving cylinder, a stamping rod piece, a cutting sleeve II, a liftable supporting base and a liftable cutting sleeve I, wherein the upper end and the lower end of the cutting sleeve II and the cutting sleeve I are respectively provided with the cutting sleeve II and the cutting sleeve I which can be linked, when in riveting, the pressing driving cylinder drives the cutting sleeve II to be punched with the cutting sleeve I on the lifting supporting base, the device realizes the integrated linkage of the punching and riveting actions of the insulating gaskets, effectively isolates the direct contact of the magnesium alloy parts and the rivets, radically avoids electrochemical corrosion, simplifies the processing procedure, and improves the production efficiency and the riveting quality.

Inventors

  • FANG YINJIE
  • Kong Wanqin
  • FANG YAJIE
  • SHI HUA

Assignees

  • 杭州亿方电器有限公司

Dates

Publication Date
20260505
Application Date
20260325

Claims (10)

  1. 1. A kitchen fan magnesium alloy part riveting set, characterized in that includes: A machine body (1); The rotary workbench (2) is rotatably arranged at the top of the machine body (1) and is used for placing an assembly sleeve (3) to be riveted and a protective mounting cover (4); The support frame (5) is fixedly arranged at the top of the machine body (1); the pushing-down driving cylinder (6) is fixedly arranged at the top of the supporting frame (5); The stamping rod piece (61) is fixedly arranged at the output end of the pressing driving cylinder (6) and is used for stamping rivets; The cutting sleeve II (63) is sleeved on the outer wall of the stamping rod piece (61) in a sliding manner and is used for cutting the insulating belt (86) by matching with the protective mounting cover (4) under the driving of the pushing-down driving cylinder (6); The support base (16) is arranged at the top of the machine body (1) in a lifting manner, and the top of the support base is used for abutting against the lower edge of the assembly sleeve (3) so as to be matched with the stamping rod piece (61) to press the rivet; and a cutting sleeve I (164) which is arranged on the top of the supporting base (16) in a lifting manner and is used for cutting the insulating tape (86) by matching with the lower edge of the assembling sleeve (3) when the supporting base (16) ascends to form an annular gasket; During riveting, the cutting sleeve II (63) and the cutting sleeve I (164) are punched, an insulating tape (86) between the cutting sleeve II and the cutting sleeve I is synchronously punched into the annular gasket, and the annular gasket is pressed between the rivet and the component in the subsequent riveting process.
  2. 2. Kitchen ventilator magnesium alloy part riveting device according to claim 1, characterized by further comprising a conveying device (8) arranged at the top of the machine body (1), the conveying device (8) being used for conveying the insulating tape (86) between the assembly sleeve (3) and the protective mounting cover (4) for punching of the cutting sleeve II (63) and the cutting sleeve I (164).
  3. 3. Kitchen ventilator magnesium alloy part riveting apparatus according to claim 2, characterized in that the conveying means (8) comprise: a unreeling disc (87) rotatably arranged at the top of the machine body (1) and used for unreeling the insulating tape (86); A reel body (83) rotatably arranged at the top of the machine body (1); The driving motor (85) is in transmission connection with the winding disc body (83) and is used for driving the winding disc body (83) to rotate; And a guide roller (84) rotatably provided on the top of the body (1) for guiding the insulating tape (86); One end of the insulating tape (86) is wound on the unreeling disc body (87), the other end of the insulating tape bypasses the guide roller (84) and is then fixed on the reeling disc body (83), and the driving motor (85) winds the reeling disc body (83) through driving so as to pull the insulating tape (86) to be conveyed at a constant speed.
  4. 4. Kitchen ventilator magnesium alloy part riveting device according to claim 1, characterized in that it further comprises positioning means (9), said positioning means (9) being arranged on one side of the support frame (5) for positioning the assembly sleeve (3) before riveting.
  5. 5. Kitchen ventilator magnesium alloy part riveting apparatus according to claim 4, characterized in that the positioning means (9) comprise: A rotary connection plate (91) one end of which is rotatably connected to the support frame (5); the conical positioning disc (93) is arranged at the other end of the rotary connecting plate (91) and is used for being matched with the mounting hole on the assembly sleeve (3); And a driving cylinder I (94), the cylinder body of which is hinged with the supporting frame (5), and the output end of which is rotationally connected with the rotating connecting plate (91) so as to drive the conical positioning disc (93) to insert into or withdraw from the mounting hole, thereby realizing the circumferential and axial positioning of the assembly sleeve (3).
  6. 6. Kitchen fan magnesium alloy part riveting set according to claim 1, characterized in that a plurality of groups of threaded holes (21) are formed in the top of the rotary table (2), and positioning rods (22) for abutting against the inner wall of the assembly sleeve (3) are connected in the threaded holes (21) so as to realize radial positioning of the assembly sleeve (3).
  7. 7. Kitchen ventilator magnesium alloy part riveting device according to claim 1, characterized in that it further comprises a lifting driving cylinder (14), wherein the lifting driving cylinder (14) is fixedly arranged at the top of the machine body (1), and the output end of the lifting driving cylinder is in transmission connection with the support base (16) so as to drive the support base (16) to lift.
  8. 8. The magnesium alloy part riveting device for a kitchen fan according to claim 1, wherein a fixed mounting hole (161) is formed in the top of the supporting base (16), a lower die base (163) for supporting rivets is arranged in the fixed mounting hole (161), and the cutting sleeve I (164) is sleeved on the outer wall of the lower die base (163) and can slide relative to the lower die base.
  9. 9. The magnesium alloy part riveting apparatus of a kitchen ventilator according to claim 8, wherein the outer wall of the lower die base (163) is sleeved with a spring I (165), and both ends of the spring I (165) respectively abut against the bottom wall of the fixed mounting hole (161) and the bottom of the cutting sleeve I (164) to drive the cutting sleeve I (164) to return.
  10. 10. The kitchen ventilator magnesium alloy part riveting apparatus according to claim 1, further comprising: The conveying guide rail (17) is fixedly arranged at the bottom of the supporting frame (5); a feed channel (64) communicated with the conveying guide rail (17) is formed in the outer wall of the cutting sleeve II (63) and is used for receiving rivets from the vibration feeding disc; And a spring II (62) sleeved on the outer wall of the stamping rod piece (61), wherein two ends of the spring II respectively collide with the tops of the stamping rod piece (61) and the cutting sleeve II (63) and are used for enabling the cutting sleeve II (63) to contact with the stamping rod piece (61) and cut the insulating tape (86) in preference to the stamping rod piece (61) when the pushing driving cylinder (6) drives.

Description

Kitchen fan magnesium alloy part riveting set Technical Field The invention belongs to the technical field of fan assembly, and relates to a magnesium alloy part riveting device of a kitchen fan. Background The kitchen fan is used as a core component of kitchen exhaust equipment, has higher use requirements on light weight, structural strength and corrosion resistance, and the magnesium alloy material is widely applied to processing production of the core components such as impellers and brackets of the kitchen fan due to the characteristics of low density, high specific strength and excellent heat dissipation performance, and the riveting process is a main stream processing mode of assembling the magnesium alloy fan component, so that the connection strength between the components can be ensured, the processing characteristics of the magnesium alloy material are adapted, and the structural stability requirement of long-term operation of the fan is met. At present, the riveting processing of magnesium alloy parts of the kitchen fan is finished by adopting conventional punching riveting equipment, and the equipment has a plurality of technical defects in the actual production and use processes, so that the equipment is difficult to adapt to the use environment and the mass production requirements of the kitchen fan. The kitchen fan is in a use environment of lampblack and water vapor mixing for a long time, the contact position of the rivet and a magnesium alloy part is extremely easy to form a primary battery effect, electrochemical corrosion of the contact position is caused, corrosion and connection looseness of the surface of the part are caused if the weight is light, the fan structure is invalid, a large potential safety hazard exists, in order to relieve corrosion problems, the kitchen fan is mostly treated in a mode of spraying anti-corrosion paint by a whole machine after riveting, but tiny gaps between the bottom of the rivet and the magnesium alloy part are difficult to be completely filled with paint liquid, lampblack and water vapor can still enter the gaps through capillary permeation, the anti-corrosion effect is limited, part of production scenes are isolated and contacted by adopting a mode of manually pre-filling insulating gaskets, the problems of complicated manual operation, poor positioning precision and easy deviation and leakage of gaskets are solved, the assembly efficiency is greatly reduced, and the rhythm of batch production cannot be met. The positioning and supporting structure of the existing riveting equipment adopts special rigid profiling molds, one type of mold can only be adapted to fan components with single specification, the universality is poor, the corresponding mold is required to be replaced aiming at magnesium alloy components with different types, the equipment investment cost is high, the mold replacement time is long, and the production continuity is affected. Meanwhile, the magnesium alloy part has casting tolerance, the rigid die cannot be completely attached to the curved surface of the part, and instantaneous impact force in the riveting process can act on the attaching gap, so that the magnesium alloy part is extremely easy to deform and crack, and the product qualification rate is reduced. In the processing procedure, the integrated linkage of insulating gasket punching, rivet feeding and riveting actions is not realized by the existing equipment, and the procedures of insulating tape cutting, gasket placement, rivet feeding, riveting pressing and the like are independent operations, so that auxiliary operations of a plurality of links are needed to be manually participated, the degree of automation is low, the procedure connection is tedious, the manual labor intensity is high, and the processing consistency is difficult to guarantee. In addition, the existing equipment lacks a mechanical linkage structure for synchronous punching cladding, and on-site punching and press-embedding of the insulating gasket can not be completed while riveting, so that the complexity of a processing flow is further increased, and the improvement of the assembly quality and the production efficiency of the magnesium alloy part of the kitchen fan is restricted. Therefore, a riveting device for magnesium alloy parts of kitchen fans is provided, and the riveting device is used for solving the problems. Disclosure of Invention The invention aims to solve the core technical defects in the riveting of the magnesium alloy part of the existing kitchen fan, namely electrochemical corrosion of the magnesium alloy and a steel rivet (corrosion failure caused by primary battery effect in oil smoke and water vapor environment), inaccurate positioning of an artificially preset insulating gasket, offset and leakage, low efficiency and easy deformation of the part caused by rigid die impact. In order to achieve the purpose, the invention provides the technical scheme that the magnesium alloy