CN103317003A - Method for improving punching accuracy of frame and device - Google Patents
Method for improving punching accuracy of frame and device Download PDFInfo
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- CN103317003A CN103317003A CN2013102254563A CN201310225456A CN103317003A CN 103317003 A CN103317003 A CN 103317003A CN 2013102254563 A CN2013102254563 A CN 2013102254563A CN 201310225456 A CN201310225456 A CN 201310225456A CN 103317003 A CN103317003 A CN 103317003A
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Abstract
The invention discloses a method for improving the punching accuracy of a frame. The method comprises the steps of 1), producing a frame body; 2), fixedly connecting punched piece blanks to the frame body to form a frame to be punched; 3), performing uniform punching on the punched piece blanks on the frame to be punched. The invention further discloses a device for achieving the method for improving the punching accuracy of the frame. The device comprises a platform, and a plurality of stationery fixtures capable of fixing the frame to be punched and a plurality of punching mechanisms for punching the punched piece blanks are arranged on the platform. According to the punching method, the traditional technology in which punching is performed and welding is performed later is overturned and changed into a technology in which the frame to be punched is produced and uniform punching is performed then, the relative position accuracy of each hole position on the finished frame is guaranteed, the follow-up assembling work of a whole vehicle is facilitated, and the quality of the whole vehicle after machining is ensured. The punching device is designed for achieving the method. The method and the device are applicable to the punching process for automobile frames.
Description
Technical field
The present invention relates to a kind of punching technology of automobile frame, and corresponding hole punched device.
Background technology
The vehicle frame of automobile is bulky, except main body of vehicle frame, also has many less parts to weld together with main body of vehicle frame, and on these little parts, majority need to carry out punching processing.Present vehicle frame punching technology is such: main body of vehicle frame is produced, and got ready punching part blank; Punching part blank is carried out punching, make it to become punching part finished product; Then punching part finished product and main body of vehicle frame are welded together, form the vehicle frame finished product with position, hole.Accordingly, on the vehicle frame production line, special device for punching with it vehicle frame is arranged.Described hole punched device has a large platform, is provided with many cover stationary fixtures above the platform, and they are arranged apart on platform; When main body of vehicle frame through after hanging device is transplanted on the platform, stationary fixture forward and backward, medium place will fix vehicle frame, and then or manual or automatically, punching part finished product is welded on the assigned address.
Yet the drawback of this technique is apparent.Although the hole on the punching part blank is to come punching according to the drawing content, when each parts carries out welding assembly on production line, the trueness error problem such as the position that is easy to occur the hole is inaccurate, the hole axle is uneven.The low problem of this vehicle frame punching precision, the engineer needs to be resolved hurrily.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of method that improves vehicle frame punching precision is provided, and a kind of device of realizing the method.
The solution that the present invention solves its technical problem is:
A kind of method that improves vehicle frame punching precision may further comprise the steps:
1), produces main body of vehicle frame;
2), punching part blank is fixedly attached on the main body of vehicle frame, forms and treat the punching vehicle frame;
3), treat that to described punching part blank on the punching vehicle frame unifies punching.
Here said " unified punching " comprised and adopted the implication of finishing punching in same set of total system, the same operation.
As further improvement in the technical proposal, described step 2) in, the connected mode of punching part blank and main body of vehicle frame is welding.
Then, a kind of device of realizing the method for described raising vehicle frame punching precision, it comprises platform, is furnished with many covers on the described platform and can will treats the securing stationary fixture of punching vehicle frame, and the punch mechanism that carries out punching for the hole part blank that liquidates that overlaps more.
As further improvement in the technical proposal, also be provided with positioner on the described platform.
As further improvement in the technical proposal, positioner has two covers, and its left and right sides mirror image is arranged in the both sides of platform symmetrically; Positioner comprises a location cylinder, and the piston rod output of positioning cylinder is provided with the fastening screw that the locating hole on the punching vehicle frame cooperates for the treatment of with peripheral hardware.
The invention has the beneficial effects as follows: hole-punching method of the present invention, overturned traditional loose mail, coarse technique of integral solder again of processing first, change into making first and treat punching vehicle frame, then unified punching, this has just ensured the relative positional accuracy of each position, hole on the vehicle frame finished product, be conducive to follow-up car load assembly work, guarantee the quality of the rear car load of processing.For realizing what the method designed, its compactness rational in infrastructure can simply promptly be finished the punching operation of car load frame to hole punched device of the present invention just.The present invention is applicable in the punching process links of automobile frame.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use was done simple declaration during the below will describe embodiment.Obviously, described accompanying drawing is a part of embodiment of the present invention, rather than whole embodiment, and those skilled in the art can also obtain other designs and accompanying drawing according to these accompanying drawings under the prerequisite of not paying creative work.
Fig. 1 is each parts relative position form schematic diagram of the device of the realization of the present invention method that improves vehicle frame punching precision;
Fig. 2 is in the course of work of device of the realization of the present invention method that improves vehicle frame punching precision, the punching view of mounting bracket behind the lower swing arm.
The specific embodiment
Below with reference to embodiment and accompanying drawing the technique effect of design of the present invention, concrete structure and generation is carried out clear, complete description, to understand fully purpose of the present invention, feature and effect.Obviously; described embodiment is a part of embodiment of the present invention, rather than whole embodiment, based on embodiments of the invention; other embodiment that those skilled in the art obtains under the prerequisite of not paying creative work all belong to the scope of protection of the invention.In addition, all connection/annexations of mentioning in the literary composition are not to refer to that singly member directly joins, and refer to and can connect auxiliary by adding or reducing according to the implementation situation, form more excellent draw bail.Each technical characterictic in the invention can combination of interactions under the prerequisite of not mutual contradiction.
A kind of method that improves vehicle frame punching precision may further comprise the steps:
1), produces main body of vehicle frame;
2), punching part blank is fixedly attached on the main body of vehicle frame, forms and treat punching vehicle frame 5;
3), treat that to described punching part blank on the punching vehicle frame 5 unifies punching.
Be further used as preferred embodiment described step 2) in, the connected mode of punching part blank and main body of vehicle frame is welding.Method of the present invention is particularly effective to the assembling mode of welding.Because during welding, the changing of the relative positions between the parts and the contraction of metalwork are obvious especially, the precision between the Kong Yukong is relatively poor.And adopted after the method for the present invention, more unified punching of first weldering has improved the relative positional accuracy in each hole on the vehicle frame greatly.
Then, with reference to Fig. 1, a kind of device of realizing the method for described raising vehicle frame punching precision, it comprises platform 1, be furnished with many covers on the described platform 1 and can will treat the securing stationary fixture 2 of punching vehicle frame, and the punch mechanism 3 that carries out punching for the hole part blank that liquidates that overlaps more.
Because stationary fixture 2 and punch mechanism 3 all are the already present device of industry or equipment on the existing vehicle frame production line, therefore seldom describe.As can be seen from Figure 1, stationary fixture 2 has layout before, during and after platform 1, it can will treat that the punching vehicle frame clamps down on, pins, the position of punch mechanism 3 presets, after fixing until the punching vehicle frame, corresponding sheet metal component namely drops between the concave-convex mold of punch mechanism 3, can carry out immediately the punching in hole.
Be further used as preferred embodiment, also be provided with positioner 4 on the described platform 1.
Be further used as preferred embodiment, positioner 4 has two covers, and its left and right sides mirror image is arranged in the both sides of platform 1 symmetrically; Positioner 4 comprises a location cylinder, and the piston rod output of positioning cylinder is provided with the fastening screw that the locating hole on the main body of vehicle frame with peripheral hardware cooperates.Substantially all be installed with locating hole on the main body of vehicle frame, it is the both sides that are symmetrically located at main body of vehicle frame.For fear for the treatment of that the added position of punching vehicle frame is inaccurate, perhaps can the changing of the relative positions, therefore be provided with especially positioner 4.When put surely until punching vehicle frame 5 after, the piston rod action of positioning cylinder, fastening screw is inserted in the locating hole, has limited the vehicle frame free degree, prevents from toppling about it or the front and back fine motion.Further improve whole punching precision.
The punching of the below's mounting bracket behind the lower swing arm of automobile frame is told about working condition of the present invention as example:
With reference to Fig. 2, require to be provided with waist-shaped hole 7 behind the lower swing arm above the mounting bracket 6.Traditional technique namely is the punching part blank of making first mounting bracket behind the lower swing arm, then goes out waist-shaped hole 7 at punch press, is welded on the main body of vehicle frame again.And the present invention is welded to the punching part blank of mounting bracket behind the lower swing arm on the main body of vehicle frame first directly, makes and treats punching vehicle frame 5, then is transplanted between the concave-convex mold of punch mechanism 3 to carry out punching.
Above better embodiment of the present invention is specified, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite of spirit of the present invention, the modification that these are equal to or replacement all are included in the application's claim limited range.
Claims (5)
1. method that improves vehicle frame punching precision is characterized in that: may further comprise the steps:
1), produces main body of vehicle frame;
2), punching part blank is fixedly attached on the main body of vehicle frame, forms and treat the punching vehicle frame;
3), treat that to described punching part blank on the punching vehicle frame unifies punching.
2. the method for raising vehicle frame punching precision according to claim 1 is characterized in that: described step 2), the connected mode of punching part blank and main body of vehicle frame is welding.
3. device of realizing the method for claim 1 or 2 described raising vehicle frame punching precision, it is characterized in that: comprise platform (1), be furnished with many covers on the described platform (1) and can will treat the securing stationary fixture of punching vehicle frame (2), and the punch mechanism (3) that carries out punching for the hole part blank that liquidates that overlaps more.
4. realization according to claim 3 improves the device of the method for vehicle frame punching precision, it is characterized in that: also be provided with positioner (4) on the described platform (1).
5. realization according to claim 4 improves the device of the method for vehicle frame punching precision, and it is characterized in that: positioner (4) has two covers, and its left and right sides mirror image is arranged in the both sides of platform (1) symmetrically; Positioner (4) comprises a location cylinder, and the piston rod output of positioning cylinder is provided with the fastening screw that the locating hole on the punching vehicle frame cooperates for the treatment of with peripheral hardware.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102254563A CN103317003A (en) | 2013-06-07 | 2013-06-07 | Method for improving punching accuracy of frame and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102254563A CN103317003A (en) | 2013-06-07 | 2013-06-07 | Method for improving punching accuracy of frame and device |
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| Publication Number | Publication Date |
|---|---|
| CN103317003A true CN103317003A (en) | 2013-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013102254563A Pending CN103317003A (en) | 2013-06-07 | 2013-06-07 | Method for improving punching accuracy of frame and device |
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| CN (1) | CN103317003A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109158474A (en) * | 2018-09-07 | 2019-01-08 | 扬州宏运车业有限公司 | A kind of high-precision punching apparatus |
| CN112519637A (en) * | 2019-09-19 | 2021-03-19 | 观致汽车有限公司 | Rear-row seat mounting bracket, rear floor assembly and mounting method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5878473A (en) * | 1996-12-24 | 1999-03-09 | Dana Corporation | Method for aligning tube bracket holes |
| CN2421192Y (en) * | 2000-04-25 | 2001-02-28 | 锦州万得汽车减振器有限公司 | Synchronous punching special machine for jointing plate |
| CN2529718Y (en) * | 2002-02-06 | 2003-01-08 | 浙江精工科技股份有限公司 | Punching positioner for steel plate make-up machine |
| CN2670026Y (en) * | 2003-12-20 | 2005-01-12 | 东风汽车有限公司 | Punching device for vehicle body sheet part |
| US20060032052A1 (en) * | 2004-08-10 | 2006-02-16 | Albrecht Krueger-Eppstein | Process for milling metal parts |
| CN101774410A (en) * | 2010-03-04 | 2010-07-14 | 北汽福田汽车股份有限公司 | Method for producing automotive frame assembly |
| CN201900289U (en) * | 2010-12-28 | 2011-07-20 | 上海英伦帝华汽车部件有限公司 | Vertical type drilling machine |
| CN203330227U (en) * | 2013-06-07 | 2013-12-11 | 广东福迪汽车有限公司 | Device capable of improving precision of punching frame |
-
2013
- 2013-06-07 CN CN2013102254563A patent/CN103317003A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5878473A (en) * | 1996-12-24 | 1999-03-09 | Dana Corporation | Method for aligning tube bracket holes |
| CN2421192Y (en) * | 2000-04-25 | 2001-02-28 | 锦州万得汽车减振器有限公司 | Synchronous punching special machine for jointing plate |
| CN2529718Y (en) * | 2002-02-06 | 2003-01-08 | 浙江精工科技股份有限公司 | Punching positioner for steel plate make-up machine |
| CN2670026Y (en) * | 2003-12-20 | 2005-01-12 | 东风汽车有限公司 | Punching device for vehicle body sheet part |
| US20060032052A1 (en) * | 2004-08-10 | 2006-02-16 | Albrecht Krueger-Eppstein | Process for milling metal parts |
| CN101774410A (en) * | 2010-03-04 | 2010-07-14 | 北汽福田汽车股份有限公司 | Method for producing automotive frame assembly |
| CN201900289U (en) * | 2010-12-28 | 2011-07-20 | 上海英伦帝华汽车部件有限公司 | Vertical type drilling machine |
| CN203330227U (en) * | 2013-06-07 | 2013-12-11 | 广东福迪汽车有限公司 | Device capable of improving precision of punching frame |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109158474A (en) * | 2018-09-07 | 2019-01-08 | 扬州宏运车业有限公司 | A kind of high-precision punching apparatus |
| CN112519637A (en) * | 2019-09-19 | 2021-03-19 | 观致汽车有限公司 | Rear-row seat mounting bracket, rear floor assembly and mounting method thereof |
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Application publication date: 20130925 |