CN111790877A - Be applied to processingequipment of shock absorber rivet connection - Google Patents
Be applied to processingequipment of shock absorber rivet connection Download PDFInfo
- Publication number
- CN111790877A CN111790877A CN202010743370.XA CN202010743370A CN111790877A CN 111790877 A CN111790877 A CN 111790877A CN 202010743370 A CN202010743370 A CN 202010743370A CN 111790877 A CN111790877 A CN 111790877A
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- Prior art keywords
- positioning
- die
- riveting
- shock absorber
- pieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
- B21J15/14—Riveting machines specially adapted for riveting specific articles, e.g. brake lining machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/38—Accessories for use in connection with riveting, e.g. pliers for upsetting; Hand tools for riveting
- B21J15/42—Special clamping devices for workpieces to be riveted together, e.g. operating through the rivet holes
Abstract
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.
Description
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 radial positioning pieces 21, the other end is provided with an axial positioning groove 22, and the acting end of the first positioning component 3 is provided with 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 jacking head 41 which is arranged corresponding to the radial positioning groove 22. The mould 2 is a columnar mould formed by combining 4 fan-shaped mould pieces; the top pressing head 41 is provided with a male guiding inclined surface, the axial positioning groove 22 is provided with a female guiding inclined surface, and the male guiding inclined surface and the female guiding inclined surface are arranged in a matched mode. The non-acting ends of the first positioning component 3 and the second positioning component 4 are both provided with positioning grooves 5. Each fan-shaped die piece is provided with the radial positioning piece 21. The second positioning unit 4 is provided with a columnar guide portion 42 for fitting the inner wall of the oil reservoir as a caulking target. The outer diameter of the die 2 is smaller than the inner diameter of an oil reservoir to be caulked, so that the 4 fan-shaped die pieces can be radially expanded by the axial action of the ejector 41. The second positioning component 4 is provided with a columnar guide part 42 matched with the inner wall of an oil storage cylinder as a riveting object, and the columnar guide part 42 is larger than the outer diameter of the die 2. The interior of the mould 2 is provided axially with a through hole 23. The middle of the active end of the first positioning element 3 forms a vacant area 32.
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:
example 1
Riveting the hose bracket:
(1) placing two supporting bases, wherein one base is placed under a punch of the squeeze riveter, and the other base is 200mm away from the punch, and mechanically fixing the two bases; the oil storage cylinder is horizontally placed on the supporting base, the axial position is adjusted, and the part to be riveted is placed under the punch of the squeeze riveter; placing a mould containing 4 fan-shaped mould pieces into an oil storage cylinder pipeline, axially positioning the mould to a position to be riveted by using a first positioning assembly, and rotating a mould group by using the first positioning assembly to enable a mould groove to align to the position to be riveted; and positioning the hose support and the blank holder for placing the rivet to a part to be riveted, and positioning the punch of the riveting press aiming at the blank holder.
(2) And inserting the second positioning assembly from the other side of the oil storage cylinder pipeline, and after the female guide inclined surface of the mold is jointed with the male guide inclined surface of the second positioning assembly, pressing inwards by using a hydraulic device through the positioning grooves at the non-acting ends of the first positioning assembly and the second positioning assembly to enable the fan-shaped mold pieces of the mold to expand and move along the radial direction and finally to be tightly attached to the inner wall of the oil storage cylinder.
(3) And (3) placing a rivet into the blank holder, and applying pressure to the rivet by using the punch so that the rivet pierces the part to be riveted and the oil storage cylinder and deforms to realize the connection function. After the riveting operation is completed, the punch of the riveting press is withdrawn, the blank holder is taken down, the hydraulic device is closed, the second positioning assembly is withdrawn from the pipeline along the axial direction, the die is contracted in the radial direction, and then the die and the first positioning assembly are withdrawn from the pipeline together to complete the riveting operation.
Example 2
Riveting the spring disc:
(1) placing three supporting bases, horizontally placing the oil storage cylinder on the bases, adjusting the positions of the bases to ensure that one base is in the center of the cylinder and the other two bases are respectively at positions 30mm away from the two ends of the cylinder, and mechanically fixing the bases; sleeving a spring disc on the oil storage cylinder, and adjusting the position of the spring disc to enable the part of the spring disc to be riveted to be aligned with the punch; placing a die containing 8 dies into an oil storage barrel, axially positioning the die to a position to be riveted by using a first positioning assembly, and rotating the die to enable a die groove to align to the position to be riveted; and positioning the spring disc and the blank holder for placing the rivet to a part to be riveted, and positioning the punch of the riveting press aiming at the blank holder.
(2) And inserting the second positioning device from the other side of the oil storage cylinder pipeline, and after the female guide inclined surface of the mould is jointed with the male guide inclined surface of the second positioning assembly, using a hydraulic device to press inwards through the positioning grooves at the non-acting ends of the first positioning assembly and the second positioning assembly so as to enable each fan-shaped mold sheet of the mould to expand and move along the radial direction and finally be tightly jointed with the inner wall of the oil storage cylinder.
(3) And placing a rivet into the blank holder, applying pressure to the rivet by using the punch to enable the rivet to pierce the part to be riveted and the oil storage cylinder and deform to realize connection, returning the punch of the riveting press after the connection is completed, and taking down the blank holder to complete the riveting of one part.
(4) And (3) reducing the pressure of the hydraulic device, rotating the oil storage cylinder and the positioning device to enable the position to be riveted at the second position of the spring disc to be aligned with the punch, raising the pressure of the hydraulic machine to completely fix the device, positioning the blank holder, adjusting the punch to be aligned with the blank holder, putting the rivet into the rivet, and riveting the rivet by operating in the same step (3).
(5) And (4) repeating the operation in the step (4) for multiple times until all the parts to be riveted are riveted, then closing the hydraulic device, withdrawing the second positioning assembly out of the pipeline along the axial direction to enable the mould to shrink in the radial direction, and then withdrawing the mould and the first positioning device out of the pipeline together to complete the riveting operation.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010743370.XA CN111790877A (en) | 2020-07-29 | 2020-07-29 | Be applied to processingequipment of shock absorber rivet connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010743370.XA CN111790877A (en) | 2020-07-29 | 2020-07-29 | Be applied to processingequipment of shock absorber rivet connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111790877A true CN111790877A (en) | 2020-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010743370.XA Pending CN111790877A (en) | 2020-07-29 | 2020-07-29 | Be applied to processingequipment of shock absorber rivet connection |
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| CN (1) | CN111790877A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113602408A (en) * | 2021-09-15 | 2021-11-05 | 常州开发减震器有限公司 | Front fork tube for shock absorber and manufacturing method thereof |
-
2020
- 2020-07-29 CN CN202010743370.XA patent/CN111790877A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113602408A (en) * | 2021-09-15 | 2021-11-05 | 常州开发减震器有限公司 | Front fork tube for shock absorber and manufacturing method thereof |
| CN113602408B (en) * | 2021-09-15 | 2022-11-01 | 常州开发减震器有限公司 | Front fork tube for shock absorber and manufacturing method thereof |
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