CN2291231Y

CN2291231Y - Riveting die for clutch driven disc assembly

Info

Publication number: CN2291231Y
Application number: CN 96239546
Authority: CN
Inventors: 卢楚芳
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-09-01
Filing date: 1996-09-01
Publication date: 1998-09-16
Anticipated expiration: 2006-09-01

Abstract

The utility model relates to a riveting die of a clutch driven disc assembly for automobiles, tractors and cars, which is characterized in that the surfaces of an upper die and a lower die are provided with a disc-shaped pressing plate and a spring thereof, the pressing plate is provided with a through hole for inserting an inner rivet head and an outer rivet head, the surface of the pressing plate is provided with a concave part corresponding to the surface bulge of the clutch driven disc assembly, and a limiting ring for fixing the pressing plate on the surfaces of the upper die and the lower die is arranged, and the riveting die is characterized in that the clutch driven disc assembly is riveted under the state of pre-pressure, the disc surface cannot be bent or deformed, and the qualification rate reaches 100 percent.

Description

Clutch driven disc assembly riveting dress mould

The utility model relates to mechanical engineering, is the riveting dress mould of the clutch driven disc assembly used of automobile, tractor and car.

The riveting dress mould of existing clutch driven disc assembly, be with clutch plate, damping disc, the clutch disk shell, after rivet and other need the part assembling of assembly, be placed in the mould, at clutch plate, under the state of the unfettered power of damping disc two outer surfaces, corresponding each rivet head of each die of mould is riveted, this clinching method usually causes clutch plate, the table plane of damping disc produces irregular micro-deflection and deformation, cause the end face garden jerk value of clutch driven disc assembly to surpass the tolerance of stipulating on the drawing, defective work reaches more than 70%, to these defective works, general employing is manually beaten, hammering, proofread and correct and dispatch from the factory then, the certified products of this class reparation exist hidden danger of quality naturally.

The purpose of this utility model provides a kind of clutch driven disc assembly riveting dress mould, and it can not cause card deflection and deformation when riveting is adorned, and qualification rate reaches 100%.

The purpose of this utility model is to realize like this, be provided with upper and lower mould in the mould bases of clutch driven disc assembly riveting dress mould, upper and lower mould constitutes by backing plate, fixed head, interior die, outer die, upper and lower mould surface also is provided with the pressing plate and the spring thereof of garden dish type, pressing plate is provided with the through hole that inserts for inside and outside die, clamp surface is provided with and clutch driven disc assembly rat corresponding concave part, is provided with the spacing collar that pressing plate is fixed on upper and lower mould surface usefulness.

Characteristics of the present utility model are: clutch driven disc assembly is riveted under the state of precompression being subjected to, can not produce card deflection and deformation, qualification rate reaches 100%.

Embodiment further describes below in conjunction with accompanying drawing, accompanying drawing is a structural representation of the present utility model, riveting dress mould with east wind EQ140D type vehicle clutch driven disc assembly is embodiment, it is 315 * 250 * 245-290I type that mould bases 1 is selected the GB2851.3-81 specification for use, and backing plate 2, fixed head 3, interior die 4 and outer die 5 are all adorned mould together with former riveting; Pressing plate 6 is that the 40Cr material is made, and is of a size of Φ 190MM, thick 28MM, and surperficial heat treatment hardness requires HRC45-50; Spring 8 is a Φ 4.5MM steel wire coiled, external diameter Φ 29.5MM, drift 26MM, 4.5 circles, quenching hardness HRC43-48; Spacing collar 7 is made by 45 steel material, be evenly equipped with six interior dies and six outer dies in the mould, be provided with six springs, select the above forcing press of 63T for use, the utility model is exactly to set up garden dish type pressing plate and spring thereof on the upper and lower mould surface of original general clutch driven plate riveting dress mould, and is fixed on upper and lower mould surface with spacing collar and forms.Following narrating action, when the downward riveting of forcing press drive patrix is adorned, also has the 3.3MM place at the distance bottom dead centre, workpiece enters the riveted joint primary state, total precompression of rag iron spring is 170KG, when arriving bottom dead centre, total precompression of rag iron spring reaches 378KG, these are defeated at clutch plate, around the table plane and rivet of damping disc, to guarantee not produce deflection and deformation, the rivet force of forcing press is 55T, core rod 9 is to be fixed on the counterdie among the figure, be used for making workpiece to locate, the utility model is if be used for tractor, car or other model automobiles, the then every size of riveting dress mould, parameter, specification should be done corresponding change.

Claims

Be provided with upper and lower mould in the mould bases 1 of clutch driven disc assembly riveting dress mould, upper and lower mould constitutes by backing plate 2, fixed head 3, interior die 4, outer die 5, it is characterized in that: upper and lower mould surface also is provided with the pressing plate 6 and the spring 8 thereof of garden dish type, pressing plate is provided with the through hole that inserts for inside and outside die, and clamp surface is provided with and clutch driven disc assembly rat corresponding concave part; Be provided with the spacing collar 7 that pressing plate is fixed on upper and lower mould surface usefulness.