CN111112455B - Method for machining front bushing of swing arm of automobile suspension - Google Patents
Method for machining front bushing of swing arm of automobile suspension Download PDFInfo
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- CN111112455B CN111112455B CN202010000240.7A CN202010000240A CN111112455B CN 111112455 B CN111112455 B CN 111112455B CN 202010000240 A CN202010000240 A CN 202010000240A CN 111112455 B CN111112455 B CN 111112455B
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- processing
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- swing arm
- trimming
- automobile suspension
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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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
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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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
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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
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention relates to the technical field of machining, in particular to a method for machining a front bushing of a swing arm of an automobile suspension, which comprises the following machining steps: punching, namely processing a positioning process hole at a position to be cut of the workpiece; trimming, namely cutting off the part to be removed on the side surface of the workpiece in batches under the positioning action of the positioning process hole and separating waste materials to process an upper circular ring and a lower circular ring; side forming, namely stamping a workpiece into a preset shape to machine two concave arms; and (4) side shaping, namely trimming two concave arms on the workpiece. According to the processing method of the front bushing of the swing arm of the automobile suspension, the positioning process hole is processed on the workpiece, and the processing die and the positioning process hole are matched with each other to perform batch edge cutting on the workpiece, so that the influence on the roundness of the workpiece during edge cutting can be effectively reduced, the waste material can smoothly fall off, the probability of material clamping of the processing die is greatly reduced, and the processing precision of the workpiece is improved.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a method for machining a front bushing of a swing arm of an automobile suspension.
Background
The front bushing of the swing arm of the automobile suspension is a metal part and comprises an upper circular ring 1, a lower circular ring 2 and two concave arms 3 used for connecting the upper circular ring 1 and the lower circular ring 2, wherein the two concave arms 3 are symmetrically arranged, as shown in figure 1. The automobile suspension swing arm front bushing is used for fixing internal rubber, connecting an automobile body and a suspension and playing a role in connection and buffering. The automobile suspension swing arm front bushing is designed to effectively reduce the vibration of the automobile during running, prolong the service life of rubber and simultaneously ensure the strength.
In the prior art, the front bushing of the swing arm of the automobile suspension is mostly formed by stamping, turning or rolling assembly welding. Because the product is the cylinder, the processing mode material utilization who adopts the lathe work shaping is not enough to still need to carry out destressing after the shaping of automobile suspension swing arm front liner, the processing cost is too high. The processing mode of rolling, assembling and welding forming is adopted, the connecting strength of the finished product of the front bushing of the swing arm of the automobile suspension is not enough, and the product quality is reduced. The workpiece cannot be prevented from rotating by adopting a conventional metal plate stamping processing mode, the positioning is not stable enough, and the trimming precision of the workpiece cannot be ensured, so that the width difference of the two concave arms 3 is large, and the processing precision of the workpiece cannot be ensured; if adopt the mode of once cutting edge, the radian of cutting edge is great, and is big to the effort of work piece, leads to the work piece to warp, and the work piece circularity is low, and the powder is big, and dropping of waste material is not smooth, and the processing mould blocks the waste material easily and leads to exploding the processing mould. Therefore, the processing mode of the front bushing of the swing arm of the automobile suspension needs to be improved.
Disclosure of Invention
The invention aims to provide a method for machining a front bushing of a swing arm of an automobile suspension, which can improve the positioning precision of a workpiece and reduce the situation of clamping waste materials of a machining module.
The invention discloses a method for processing a front bushing of a swing arm of an automobile suspension, which comprises the following processing steps of:
punching, namely processing a positioning process hole at a position to be cut of the workpiece;
trimming, namely cutting off the part to be removed on the side surface of the workpiece in batches under the positioning action of the positioning process hole and separating waste materials to process an upper circular ring and a lower circular ring;
side forming, namely stamping a workpiece into a preset shape to machine two concave arms;
and (4) side shaping, namely trimming two concave arms on the workpiece.
As an improvement of the above scheme, the trimming comprises the following processing steps:
side trimming I, namely processing four correspondingly arranged cutter edges;
and fourthly, cutting off the connecting part at the position of the process hole and the connecting part symmetrical to the connecting part at the position of the process hole.
As an improvement of the above scheme, the side cutting step further includes a side cutting edge two and a side cutting edge three which are arranged between the side cutting edge one and the side cutting edge four, and the side cutting edge two and the side cutting edge three are respectively and correspondingly enlarged with two symmetrically arranged cutter edges, so that the connection part is processed to a preset size.
As an improvement of the scheme, the side trimming II and the side trimming III are carried out step by step.
As an improvement of the scheme, the punching and the side cutting are carried out simultaneously.
As an improvement of the scheme, the side molding adopts a mode that the top part applies pressure to be matched with the two sides apply balanced pressure.
As an improvement of the scheme, the punching, trimming, side forming and side shaping are processed by a continuous punching machine.
As an improvement of the scheme, the continuous punching machine adopts a mechanical arm to move materials.
As an improvement of the scheme, the method further comprises the following processing steps before punching:
blanking, cutting the round tube material into workpieces according to the set length and size.
As an improvement of the scheme, the blanking step adopts a numerical control lathe for processing.
The implementation of the invention has the following beneficial effects:
according to the processing method of the front bushing of the swing arm of the automobile suspension, the positioning process hole is processed on the workpiece, the processing die and the positioning process hole are matched with each other to perform batch edge cutting on the workpiece, so that the influence on the roundness of the workpiece during edge cutting can be effectively reduced, the waste material can smoothly fall off, the probability of material clamping of the processing die is greatly reduced, the condition of explosion of the processing die is reduced, the positioning process hole leaves the workpiece along with the waste material, the target shape of the workpiece is not influenced, and the processing precision of the workpiece is improved.
According to the processing method of the front bushing of the swing arm of the automobile suspension, the mode that the top applies pressure to be matched with the two sides apply balanced pressure is adopted for side forming. The workpiece is extruded and deformed in the model space of the processing die, and finally the shape and specification of the workpiece are formed. Compared with the traditional rolling forming and inner shrinkage forming, the processing method has the advantages of high production efficiency, low energy consumption, less deformation of processed workpieces, and more stability and reliability.
The processing method of the front bushing of the swing arm of the automobile suspension adopts the circular tube material with the corresponding specification as the raw material, cuts the circular tube material according to the set length, and then directly carries out subsequent processing, wherein the waste material consists of blanking loss and trimming waste material, and the material utilization rate is high. In order to improve the blanking precision of the round tube material, the blanking step is preferably processed by a numerical control lathe.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a force diagram of the side forming step in the embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating the processing steps of the method for processing the front bushing of the swing arm of the automotive suspension according to the embodiment of the present invention;
fig. 4 is a schematic structural diagram of a processing mold used in the processing method of the front bushing of the swing arm of the automotive suspension in the embodiment of the invention.
In the figure: 1. an upper circular ring; 2. a lower circular ring; 3. a concave arm.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments so as to more clearly understand the technical idea of the invention claimed. It is only noted that the invention is intended to be limited to the specific forms set forth herein, including any reference to the drawings, as well as any other specific forms of embodiments of the invention.
The invention provides a method for processing a front bushing of a swing arm of an automobile suspension, which comprises the following processing steps: punching, trimming, side forming and side shaping.
And punching, namely machining a positioning process hole at the position to be cut of the workpiece. The positioning process holes are round holes or elliptical holes, are arranged at positions to be cut off, and fall off along with the subsequent trimming step, so that the target shape of the workpiece is not affected.
And (3) trimming, namely cutting off the part to be removed on the side surface of the workpiece in batches under the positioning action of the positioning process hole and separating waste materials to machine the upper circular ring 1 and the lower circular ring 2. The processing mould of automobile suspension swing arm front bushing corresponds on and is equipped with the bolt that is used for inserting the location fabrication hole, when needing to enlarge the side cut opening, and the locating pin inserts earlier in the location fabrication hole, plays the effect that prevents the work piece rotation, mutually supports the side cut process through location fabrication hole and locating pin and realizes the location, improves the side cut precision, makes the width of two concave arms 3 at less within range, improves the machining precision of work piece. By adopting the mode of batch edge cutting, the stamping force to the workpiece is reduced at every time, the influence on the roundness of the workpiece during edge cutting can be effectively reduced, the waste material drops smoothly, and the probability of material clamping of the processing die is greatly reduced.
And (4) side forming, namely stamping the workpiece into a preset shape to machine the two concave arms 3. The processing mould acts on the inside and outside both sides of work piece respectively in the course of working, goes up the distance between ring 1 and the lower ring 2 and dwindles gradually at concave arm 3's forming process, and after concave arm 3 shaping, the distance between last ring 1 and the lower ring 2 reachs and predetermines the distance, improves the machining precision of work piece.
And (4) side shaping, namely trimming two concave arms 3 on the workpiece. The concave arm 3 is easy to generate rebound after side molding, and the processing precision of work is improved by trimming the concave arm 3.
According to the processing method of the front bushing of the swing arm of the automobile suspension, the positioning process hole is processed on the workpiece, the processing die and the positioning process hole are matched with each other to perform batch edge cutting on the workpiece, so that the influence on the roundness of the workpiece during edge cutting can be effectively reduced, the waste material can smoothly fall off, the probability of material clamping of the processing die is greatly reduced, the condition of explosion of the processing die is reduced, the positioning process hole leaves the workpiece along with the waste material, the target shape of the workpiece is not influenced, and the processing precision of the workpiece is improved.
It should be noted that the cutting edges preferably comprise the following processing steps: the side cutting edge is I, and the side cutting edge is IV.
And (5) side trimming I, and processing four correspondingly arranged cutter edges. The number of the cutting edges is increased from two to four, so that the effect of reducing the width of the cutting edges by more than half is achieved, and the influence of the trimming on the roundness of the workpiece is reduced.
And fourthly, cutting off the connecting part at the position of the process hole and the connecting part symmetrical to the connecting part at the position of the process hole. Positioning pins on the processing die are matched with the positioning process holes to position the workpiece, two cutting edges are processed on the four cutting edges, and the width of each cutting edge is consistent with the preset width. This approach is suitable for situations where the design width of the cutting edge is small.
When the width of the cutter edge is larger, the side cutting step preferably comprises a side cutting edge II and a side cutting edge III which are arranged between the side cutting edge I and the side cutting edge IV, and the side cutting edge II and the side cutting edge III respectively and correspondingly enlarge two groups of symmetrically arranged cutter edges, so that the connection part is machined to a preset size, and the width size of the concave arm 3 is ensured to be accurate. The second side edge cutting and the third side edge cutting can be carried out synchronously. In the embodiment, because the waste blanking space of the processing die is small, the side trimming II and the side trimming III are preferably performed step by step, and the processing die is placed to clamp the waste.
It should be noted that, since the positioning accuracy of the process positioning hole in the subsequent step is not affected by the process positioning hole processed by the punching and trimming in a step-by-step manner, the punching is preferably performed simultaneously with the side trimming, so as to optimize the structure of the processing mold.
As shown in fig. 2, side forming preferably employs a top applied pressure F1 in combination with a two side applied equilibrium pressure F2. The workpiece is extruded and deformed in the model space of the processing die, and finally the shape and specification of the workpiece are formed. Compared with the traditional rolling forming and inner shrinkage forming, the processing method has the advantages of high production efficiency, low energy consumption, less deformation of processed workpieces, and more stability and reliability. Similarly, the side shaping can be used for shaping the workpiece in a mode that the top applies pressure to be matched with the two sides apply balanced pressure.
Actually, the punching, trimming, side forming and side shaping are processed by a continuous punch press, and only the corresponding processing dies in each step need to be sequentially arranged on the continuous punch press, so that the workpiece can be efficiently processed. And in order to move the materials in coordination with the processing beat of the continuous punching machine, the continuous punching machine preferably adopts a mechanical arm to move the materials, and the mechanical arm pushes the workpiece to move to the next processing die every time the continuous punching machine is opened and closed, and the discharging is carried out until the processing is finished.
The processing method of the front bushing of the swing arm of the automobile suspension provided by the embodiment of the invention further comprises the processing steps before punching: blanking, cutting the round tube material into workpieces according to the set length and size. The circular tube material with corresponding specification is adopted as a raw material, the circular tube material is cut according to a set length, then subsequent processing is directly carried out, the waste material is composed of blanking loss and trimming waste, and the material utilization rate is high. In order to improve the blanking precision of the round tube material, the blanking step is preferably processed by a numerical control lathe.
As shown in fig. 3, the method for processing a front bushing of a swing arm of an automotive suspension according to an embodiment of the present invention includes the following processing steps:
p01, blanking;
p02, punching, cutting the side edge I, and simultaneously performing the punching on four A surfaces;
p03, side trimming II, and simultaneously performing two B surfaces;
p04, side trimming III, and simultaneously performing two C surfaces;
p05, side cutting four edges, and simultaneously performing two D surfaces;
p06, side molding;
p07, side shaping.
In addition, a processing die used in the processing method of the front bushing of the swing arm of the automobile suspension in fig. 3 is shown in fig. 4.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A processing method of a front bushing of an automobile suspension swing arm is characterized by comprising the following processing steps:
punching, namely processing a positioning process hole at a position to be cut of the workpiece;
trimming, namely cutting off the part to be removed on the side surface of the workpiece in batches under the positioning action of the positioning process hole and separating waste materials to process an upper circular ring and a lower circular ring;
Side forming, namely stamping a workpiece into a preset shape to machine two concave arms;
side shaping, namely trimming two concave arms on the workpiece;
the trimming comprises the following processing steps:
side trimming I, namely processing four correspondingly arranged cutter edges;
cutting off the connecting part at the positioning process hole and the connecting part symmetrical to the connecting part at the process hole;
the side cutting step further comprises a side cutting edge II and a side cutting edge III which are arranged between the side cutting edge I and the side cutting edge IV, and the side cutting edge II and the side cutting edge III correspondingly enlarge two groups of symmetrically arranged cutter edges respectively to enable the joint to be processed to a preset size.
2. The method for processing the front bushing of the swing arm of the automobile suspension as claimed in claim 1, wherein: and the second side trimming and the third side trimming are carried out step by step.
3. The method for processing the front bushing of the swing arm of the automobile suspension as claimed in claim 1, wherein: and the punching and the side cutting are synchronously carried out.
4. A method for processing a front bushing of a swing arm of an automobile suspension according to any one of claims 1 to 3, wherein: the side molding adopts a mode that the top applies pressure to match with the two sides to apply balanced pressure.
5. A method for processing a front bushing of a swing arm of an automobile suspension according to any one of claims 1 to 3, wherein: and the punching, trimming, side forming and side shaping are processed by a continuous punch press.
6. The method for processing the front bushing of the swing arm of the automobile suspension as claimed in claim 5, wherein: the continuous punching machine adopts a mechanical arm to move materials.
7. A method for machining a front bushing of a swing arm of an automobile suspension according to any one of claims 1 to 3, further comprising a machining step before punching:
blanking, cutting the round tube material into workpieces according to the set length and size.
8. The method for processing the front bushing of the swing arm of the automobile suspension as claimed in claim 7, wherein: and the blanking step adopts a numerical control lathe for processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010000240.7A CN111112455B (en) | 2020-01-02 | 2020-01-02 | Method for machining front bushing of swing arm of automobile suspension |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010000240.7A CN111112455B (en) | 2020-01-02 | 2020-01-02 | Method for machining front bushing of swing arm of automobile suspension |
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| Publication Number | Publication Date |
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| CN111112455A CN111112455A (en) | 2020-05-08 |
| CN111112455B true CN111112455B (en) | 2021-07-16 |
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| CN202010000240.7A Active CN111112455B (en) | 2020-01-02 | 2020-01-02 | Method for machining front bushing of swing arm of automobile suspension |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002021878A (en) * | 2000-07-04 | 2002-01-23 | Fuji Univance Corp | Method of manufacturing retainer for one-way clutch |
| CN208912912U (en) * | 2018-10-16 | 2019-05-31 | 昆山帝标汽配有限公司 | A kind of automatic punch machine producing automobile swing arm |
| CN209441123U (en) * | 2018-12-29 | 2019-09-27 | 苏州高求美达橡胶金属减震科技有限公司 | Front swing arm Large lining |
| KR102034525B1 (en) * | 2019-07-08 | 2019-10-21 | 주식회사 코디마 | Armature manufacturing method for actuator of automobile |
| CN209795091U (en) * | 2019-03-22 | 2019-12-17 | 麦格纳斯太尔汽车技术（上海）有限公司 | Novel lower swing arm before forged steel |
| CN110625005A (en) * | 2019-09-30 | 2019-12-31 | 江苏鸿基金属制品有限公司 | Full-automatic production die for circular lock latch driving sleeve of household door lock |
-
2020
- 2020-01-02 CN CN202010000240.7A patent/CN111112455B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002021878A (en) * | 2000-07-04 | 2002-01-23 | Fuji Univance Corp | Method of manufacturing retainer for one-way clutch |
| CN208912912U (en) * | 2018-10-16 | 2019-05-31 | 昆山帝标汽配有限公司 | A kind of automatic punch machine producing automobile swing arm |
| CN209441123U (en) * | 2018-12-29 | 2019-09-27 | 苏州高求美达橡胶金属减震科技有限公司 | Front swing arm Large lining |
| CN209795091U (en) * | 2019-03-22 | 2019-12-17 | 麦格纳斯太尔汽车技术（上海）有限公司 | Novel lower swing arm before forged steel |
| KR102034525B1 (en) * | 2019-07-08 | 2019-10-21 | 주식회사 코디마 | Armature manufacturing method for actuator of automobile |
| CN110625005A (en) * | 2019-09-30 | 2019-12-31 | 江苏鸿基金属制品有限公司 | Full-automatic production die for circular lock latch driving sleeve of household door lock |
Non-Patent Citations (1)
| Title |
|---|
| 汽车橡胶衬套件结构改进与静刚度性能研究;刘亚梅等;《制造业自动化》;20160425(第04期);90-92 * |
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