Be applied to processingequipment of shock absorber rivet connection
阅读说明：本技术 一种应用于减振器铆钉连接的加工装置 (Be applied to processingequipment of shock absorber rivet connection ) 是由 何浦 吴德成 于 2020-07-29 设计创作，主要内容包括：本发明提供了一种应用于减振器铆钉连接的加工装置。该装置包括固定支承底座、用于承接压铆作用的模具、设于模具一端用于对模具进行径向定位的第一定位组件和设于模具另一端用于对模具进行的轴向定位的第二定位组件；模具的一端设置有复数个径向定位件,另一端设置有轴向定位槽,第一定位组件的作用端具有复数个与所述径向定位件数量相等的径向定位对应件；第二定位组件的作用端设有与径向定位槽对应设置的顶压头。本发明在轴向定位装置和径向定位装置的压力作用下会径向膨胀从而贴合减振器的贮油筒内壁,实现对弯曲面的铆接。此外,所用模具包含多种型号,可以适用于不同元件的铆接需求。(The invention provides a processing device applied to rivet connection of a shock absorber. The device comprises a fixed supporting base, a die for bearing the pressure riveting effect, a first positioning assembly arranged at one end of the die and used for radially positioning the die, and a second positioning assembly arranged at the other end of the die and used for axially positioning the die; one end of the mould is provided with a plurality of radial positioning pieces, the other end of the mould is provided with an axial positioning groove, and the action end of the first positioning component is provided with a plurality of radial positioning corresponding pieces with the same number as the radial positioning pieces; the action end of the second positioning component is provided with a jacking head which is correspondingly arranged with the radial positioning groove. The invention can expand radially under the pressure action of the axial positioning device and the radial positioning device so as to be attached to the inner wall of the oil storage cylinder of the shock absorber, thereby realizing the riveting of the curved surface. In addition, the used mould comprises various models and can be suitable for riveting requirements of different elements.)
1. The utility model provides a be applied to riveting set of automobile shock absorber which characterized in that: the riveting device comprises a fixed supporting base (1), a die (2) for bearing the function of riveting, a first positioning component (3) arranged at one end of the die and used for radially positioning the die, and a second positioning component (4) arranged at the other end of the die and used for axially positioning the die; one end of the mould (2) is provided with a plurality of radial positioning pieces (21), the other end of the mould is provided with an axial positioning groove (22), and the action end of the first positioning component (3) is provided with a plurality of radial positioning corresponding pieces (31) with the same number as the radial positioning pieces (21); the acting end of the second positioning component (4) is provided with a pushing head (41) which is arranged corresponding to the radial positioning groove (22).
2. The riveting device applied to the automobile shock absorber as claimed in claim 1, wherein: the mould (2) is a columnar mould formed by combining a plurality of fan-shaped mould pieces; the pushing head (41) is provided with a male guide inclined plane, the axial positioning groove (22) is provided with a female guide inclined plane, and the male guide inclined plane is matched with the female guide inclined plane.
3. The riveting device applied to the automobile shock absorber as claimed in claim 1, wherein: the non-acting ends of the first positioning component (3) and the second positioning component (4) are provided with positioning grooves (5).
4. The riveting device applied to the automobile shock absorber as claimed in claim 2, wherein: each fan-shaped die piece is provided with the radial positioning piece (21).
5. The riveting device applied to the automobile shock absorber as claimed in claim 2, wherein: the number of the fan-shaped die pieces is 4, 6 or 8.
6. The riveting device applied to the automobile shock absorber as claimed in claim 1, wherein: the second positioning component (4) is provided with a columnar guide part (42) which is matched with the inner wall of the oil storage cylinder as a riveting object.
7. The riveting device applied to the automobile shock absorber as claimed in claim 2, wherein: the outer diameter of the die (2) is smaller than the inner diameter of an oil storage cylinder as a riveting object, so that the fan-shaped die pieces can expand in the radial direction after being subjected to the axial action of the ejector head (41).
8. The riveting device applied to the automobile shock absorber as claimed in claim 7, wherein: the second positioning assembly (4) is provided with a columnar guide part (42) matched with the inner wall of the oil storage cylinder serving as a riveting object, and the columnar guide part (42) is larger than the outer diameter of the die (2).
9. The riveting device applied to the automobile shock absorber as claimed in claim 1, wherein: the die (2) is axially provided with a through hole (23) inside.
10. The riveting device applied to the automobile shock absorber as claimed in claim 1, wherein: the middle part of the action end of the first positioning component (3) forms a vacant area (32).
Technical Field
The invention relates to a processing device applied to rivet connection of a shock absorber, and belongs to the technical field of riveting.
Background
The shock absorber is a damping device, can be used for slowing down impact, is widely applied in the field of automobiles, and is greatly helpful for improving the driving smoothness of the automobiles. With the rapid development of the automobile industry, the automobile parts industry is synchronously developed, and meanwhile, the market competition of the damper industry is more intense, higher requirements are put on the damper, the damper is required to have higher strength, durability and sealing performance, and meanwhile, the problems of environmental protection and personal safety are increasingly emphasized in the damper manufacturing process.
The components of the automobile shock absorber include a spring plate, a stabilizer bar bracket, a U-shaped bracket, a positioning bracket, and the like, which are required to be fixed to an oil reservoir of the shock absorber. The current common mode is welding, after the element and the oil storage cylinder are jointed and positioned, a welding rod is used for jointing the element and the oil storage cylinder at a joint. Although this welding method is fast, it has various disadvantages in terms of safety and quality. On one hand, safety accidents such as fire, explosion, burning and acute poisoning and the like can happen in the operation process of the welding process, and factors harmful to human bodies such as arc light, electric welding smoke dust, toxic gas, high-frequency electromagnetic radiation and the like are generated to cause environmental pollution and harm to human health.
Riveting is a method for connecting two or more workpieces together by rivets, the operation process needs the participation of a mold and the rivets, generally, the workpieces to be riveted are fixed on the mold, then the rivets are nailed from the upper part, and after the rivets pierce the workpieces, the rivets deform to fit with the grooves of the mold, thereby realizing the connection and fixation of the workpieces. The riveting method can realize the welding-free and spraying-free connection between the elements of the shock absorber and the oil storage cylinder, improve the appearance quality, ensure the environmental friendliness in the whole manufacturing process and ensure the personal safety and health of operators. However, this method requires the fitting of a die, and generally a flat plate member to be caulked is easy to handle, and the conventional flat plate die cannot meet this requirement for a member such as an automobile shock absorber which requires the connection to a cylindrical oil reservoir. And the riveting points of different riveting parts are different in quantity, so that the position of the die needs to be frequently changed by riveting each time by a conventional method, and the operation process is complicated.
Disclosure of Invention
The invention provides a processing device applied to rivet connection of a shock absorber, aiming at solving the problems. The invention adopts an expandable die, and the expandable die is matched with the radial positioning rod and the axial positioning rod to realize the fitting of the die to the cylinder wall, thereby completing the riveting of the bending surface.
Specifically, the technical scheme of the invention is as follows:
a riveting device applied to an automobile shock absorber comprises the following components: the riveting device comprises a fixed supporting base, a die for bearing the riveting effect, a first positioning assembly arranged at one end of the die and used for radially positioning the die, and a second positioning assembly arranged at the other end of the die and used for axially positioning the die; a plurality of radial positioning pieces are arranged at one end of the die, an axial positioning groove is formed in the other end of the die, and a plurality of radial positioning corresponding pieces with the same number as the radial positioning pieces are arranged at the action end of the first positioning assembly; and the acting end of the second positioning component is provided with a jacking head which is correspondingly arranged with the radial positioning groove.
In the above, the action end refers to an end of the first positioning component and the second positioning component which are in direct contact with the mold in the working state.
Preferably, the mold is a columnar mold formed by combining a plurality of fan-shaped mold pieces; the top pressing head is provided with a male guide inclined plane, the axial positioning groove is provided with a female guide inclined plane, and the male guide inclined plane is matched with the female guide inclined plane.
Preferably, the non-acting ends of the first positioning assembly and the second positioning assembly are provided with positioning grooves for pressing of the hydraulic machine.
Preferably, each fan-shaped die piece is provided with the radial positioning piece.
Preferably, the number of the fan-shaped mold pieces is 4, 6 or 8.
Preferably, the second positioning means is provided with a columnar guide portion for engaging with an inner wall of the oil reservoir to be caulked.
Preferably, in the above aspect, the outer diameter of the die is smaller than the inner diameter of the oil reservoir to be caulked, so that the plurality of fan-shaped die pieces can expand radially after being subjected to the axial action of the ram.
Preferably, the second positioning means is provided with a columnar guide portion for engaging with an inner wall of an oil reservoir to be caulked, and the columnar guide portion is larger than an outer diameter of the mold.
Preferably, a through hole is axially formed in the mold.
Preferably, the middle part of the action end of the first positioning component forms a vacant area.
Preferably, the shape of the vacant region is cylindrical.
The technical scheme of the invention can obtain the following beneficial effects:
(1) one end of the die adopted by the invention is provided with a radial positioning piece corresponding to the action end of the first positioning component, and the die and the first positioning component can play a role in radially fixing the die after being combined through the radial positioning piece, so that the components cannot radially rotate; the other end of the die is provided with a female guide inclined plane corresponding to the male guide inclined plane of the second positioning assembly, the die and the second positioning assembly can be axially fixed after being combined through the female and male guide inclined planes, the die cannot axially slide, the die can be positioned to an appointed riveting place and then enters a fixed state through the combined use of the two positioning assemblies, and the riveting process cannot generate position deviation.
(2) The die used by the invention consists of a plurality of fan-shaped die pieces, each die piece is provided with a radial positioning assembly, and after the female guide inclined plane of the die is axially extruded by the male guide inclined plane, the die pieces can be radially stressed to respectively expand and disperse along the radial direction and be attached to the inner wall of the oil storage cylinder, so that the positioning of the die and the riveting point is realized, and the riveting of a bending surface is realized.
(3) The invention provides three types of dies comprising 4, 6 and 8 die pieces, and because the number of the sites needing riveting of different riveting elements is different, the corresponding dies can be adopted to play a role in avoiding operations such as die replacement, repositioning and the like in the riveting process, so that the time consumption of riveting is greatly shortened, errors caused by repositioning the dies are reduced, and the riveting quality is improved.
(4) The non-working ends of the first positioning component and the second positioning component are provided with two positioning grooves, when the hydraulic press presses the positioning components, the stress direction can be stabilized according to the positioning grooves, and the damage of the tool in the pressing process caused by the force deviation is avoided.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a schematic structural view of a second positioning assembly of the present invention;
FIG. 3 is a top view of the mold of the present invention;
FIG. 4 is an end view of the mold of the present invention;
FIG. 5 is a cross-sectional view of the mold of the present invention;
FIG. 6 is a schematic view of a first positioning assembly of the present invention;
FIG. 7 is an end view of the first positioning assembly of the present invention;
in the figure, 1-a fixed supporting base, 2-a mould, 3-a first positioning component, 4-a second positioning component and 5-a positioning groove; 21-radial positioning piece, 22-axial positioning groove and 23-through hole; 31-radial positioning of the counterparts, 32-free zones; 41-top pressure head, 42-columnar guide part.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to the embodiments.
As described in the background art, the conventional welding process for the automobile shock absorber component has various defects, and the conventional riveting technology is limited by a die, so that only a flat plate component can be riveted, and a curved surface such as an oil storage cylinder of the shock absorber cannot be machined.
In order to solve the problem, the invention provides a processing device applied to rivet connection of a shock absorber, which comprises a fixed supporting base 1, a die 2 for bearing the action of pressure riveting, a first positioning component 3 arranged at one end of the die and used for radially positioning the die, and a second positioning component 4 arranged at the other end of the die and used for axially positioning the die, wherein the die 2 is used for bearing the action of pressure riveting; one end of the die 2 is provided with 4
In addition, the invention also provides a specific operation method of the processing device applied to the rivet connection of the shock absorber, which specifically comprises the following steps:
(1) positioning of elements and mold: after the oil storage cylinder is placed on the fixed supporting base, the component to be riveted, the die, the blank holder and the squeeze riveter punch are positioned to the riveting part.
(2) Fixing and expansion fitting of the die: and applying pressure on the non-acting ends of the first positioning component and the second positioning component by using a hydraulic machine to expand the fan-shaped die piece of the die along the radial direction and tightly attach the fan-shaped die piece to the inner wall of the oil storage cylinder.
(3) Implementation of the riveting process: and (5) placing a rivet into the blank holder, and finishing riveting by using a punch.
(4) And (3) withdrawing the die: and after riveting is completed, the punch is withdrawn, the blank holder is taken down, the pressure of the hydraulic press is removed, and the second clamping device and the first clamping device are withdrawn from the oil storage cylinder pipeline in sequence.
The specific method of use of the present invention is further described by the following examples:
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