CN113134715A - Integrated machining method for large-scale die insert and clamping and fixing device thereof - Google Patents
Integrated machining method for large-scale die insert and clamping and fixing device thereof Download PDFInfo
- Publication number
- CN113134715A CN113134715A CN202110575770.9A CN202110575770A CN113134715A CN 113134715 A CN113134715 A CN 113134715A CN 202110575770 A CN202110575770 A CN 202110575770A CN 113134715 A CN113134715 A CN 113134715A
- Authority
- CN
- China
- Prior art keywords
- hole
- die
- insert
- integrated
- clamping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- B23P15/24—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The invention discloses an integrated processing method of a large-scale die insert and a clamping and fixing device thereof, wherein the method comprises the following steps of performing insert design on a working part of a stamping die according to the industrial standards of length and weight; processing an auxiliary clamping hole, a screw hole and a pin threading hole; reversing the die insert, and processing a screw hole countersunk hole and a pin hole countersunk hole; clamping the die insert on a standard fixture, sending the standard fixture and the die insert into a machining center, finding a machining reference according to a reference hole in the standard fixture, and performing integrated rough machining on a working profile of the die insert; grinding the right-angle surface of the die insert, finely milling counter bores on the auxiliary clamping holes by taking the grinding right angle as a reference, and cutting all pin holes in a doubling manner; the method comprises the following steps of integrally clamping a die insert on a clamp, sending a standard clamp and the die insert into a machining center, finding a machining reference according to a reference hole, and performing integrated finish machining on a working profile of the insert based on the machining reference; and taking down the insert block, clamping the insert block on the die holder, and carrying out die assembly, die adjustment and die test.
Description
Technical Field
The invention relates to the technical field of machining, in particular to an integrated machining method for a large-scale die insert and a clamping and fixing device used by the method.
Background
The design of the large stamping part die basically adopts a modularization method, each forming station is divided into independent modules, and corresponding die inserts are designed. The processing of the modularized large stamping part die has two traditional methods, one is a single piece processing method, and the die inserts are independently fixed in a processing center one by one for processing, so that the processing efficiency is low, and the overall accuracy of the die is low; the other method is an integrated processing method, all the forming die inserts are fixed on the die holder according to the working positions and are sent to a processing center together with the die holder for integrated processing, and the method improves the overall precision of the die inserts and also improves the processing efficiency. However, two problems also exist in the integrated processing method, firstly, the die holders of each set of large stamping part die need to be customized independently, the customization time is long (generally more than 35 days), and all the modules need to be processed after the die holders return, so that the integral manufacturing period of the large stamping part die is long; secondly, the die holder of the large stamping part die is large in size, generally more than 2 meters, so that an enterprise must be provided with a large and high-precision machining center, and the production cost is high.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide an integrated processing method of a large die insert and a clamping and fixing device used by the method.
The purpose of the invention is realized by the following technical scheme:
an integrated processing method for a large-scale die insert comprises the following steps:
step A, designing a 3D final assembly structure of a large die, and carrying out insert design on a working part of a stamping die according to industrial standards of length and weight;
b, processing auxiliary clamping holes for processing from the direction of the fixed surface of the single die insert by using a milling machine, and processing a plurality of screw holes for mounting and pin threading holes; then, reversing the die insert, and processing a screw hole countersunk hole and a pin hole countersunk hole in the working profile;
step C, clamping all the die inserts on a standard fixture by using a screw pin top integrated fixture, sending the inserts and the standard fixture into a machining center, finding a machining reference according to a reference hole in the standard fixture, and performing integrated rough machining on a working profile of the die inserts based on the machining reference;
d, unloading all the die inserts after rough machining is finished, carrying out heat treatment, grinding right-angle surfaces of the die inserts by using a grinding machine, carrying out finish milling on counter bores in the two auxiliary clamping holes for machining by taking the grinding right angle as a reference, and cutting all pin holes in a doubling manner;
step E, integrally clamping the die insert on the standard fixture by using the screw and pin integrated fixture again, sending the standard fixture and the die insert into the machining center again, finding a machining reference according to a reference hole in the standard fixture, and performing integrated finish machining on a working profile of the insert based on the machining reference;
and F, after the machining is finished, taking down the insert, directly clamping the die insert on the die holder by using screws and pins, and carrying out die final assembly, die adjustment and die testing.
A clamping and fixing device for integrated processing of a die insert comprises a standard clamp and a screw and pin integrated fastening jig;
the standard fixture is provided with a plurality of positioning holes which are arranged in an array mode, have the same diameter and penetrate through longitudinally; the longitudinal edge and the transverse edge of the standard clamp are provided with three processing and positioning reference holes;
the screw and pin integrated fastening jig comprises a sleeve positioning pin and a bolt; a through hole which penetrates through the sleeve positioning pin longitudinally is formed in the middle of the sleeve positioning pin and serves as an assembling through hole of a bolt; the standard clamp is provided with a plurality of die inserts, and the bottom of each die insert is provided with a positioning hole and an internal threaded hole; the sleeve positioning pin sequentially penetrates into the positioning holes of the standard clamp and the die insert from the lower part and is matched with the two positioning holes to realize the positioning of the die insert; the bolt is connected with the die and the die insert through the external thread, so that the die insert is fastened.
One or more embodiments of the present invention may have the following advantages over the prior art:
1. the method can be used for finishing the working molded surfaces of various large dies with standardized and embedded designs, including progressive dies and transfer dies;
2. the standard fixture and the clamping and fixing jig thereof are standardized devices and can be used for integrated processing of all die inserts; the clamping mode of the die insert on the standard clamp is different from that of the die holder, the die insert can be randomly placed, the clamping integration degree is higher, and the machining efficiency can be improved;
3. in the prior art, the insert blocks are dispersedly clamped on the die holder according to the working positions, and a large machining center is needed when the die insert blocks are integrally machined due to the large size of the die holder; the standard fixture and the clamping and fixing method can integrally clamp the same number of die inserts on a small fixture, so that only a small machining center is needed, and the equipment cost and the machining cost can be saved;
4. the standard clamp has simple shape and convenient and fast processing; the clamping and fixing method integrates positioning of the sleeve positioning pin and fastening of the bolt, and the bolt penetrates through the center of the sleeve positioning pin hole, so that the sleeve positioning pin and the bolt are installed at the same hole opening position, and the number of the bolt and the sleeve positioning pin required in installation of the die module can be reduced on the basis of ensuring stable clamping; when the small-sized die insert is fixed, a plurality of bolt holes and sleeve positioning pin holes are respectively arranged in insufficient space, and the die insert can be positioned and fastened in the limited space by adopting the fixing method.
Drawings
FIG. 1 is a flow chart of a large die insert integrated machining method;
FIG. 2 is a schematic view of a stationary die insert;
FIG. 3 is a top view of a standard fixture;
FIG. 4 is a schematic cross-sectional view of a bushing dowel pin integral with a bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
As shown in fig. 1, the method for integrated processing of large die inserts comprises:
and 60, after the machining is finished, taking down the insert, directly clamping the die insert on the die holder by using screws and pins, and carrying out die final assembly, die adjustment and die testing.
Each auxiliary clamping hole for machining comprises a counter bore D1And a threaded hole D0Said counter bore D1And screw hole D0Concentric with, and screw hole D0Is matched with the bolt, and a counter bore D1Is matched with the size of the sleeve positioning pin.
As shown in fig. 2, the clamping and fixing device for machining a die insert provided in this embodiment includes:
the standard clamp 1 and the screw and pin integrated fastening jig; the standard fixture 1 is provided with a plurality of positioning holes which are arranged in an array mode, have the same diameter and penetrate through in the longitudinal direction, and three processing positioning reference holes are formed in the longitudinal edge and the transverse edge of the standard fixture; the screw and pin integrated fastening jig comprises a sleeve positioning pin 2 and a bolt 3; chamfers are arranged at two ends of the sleeve positioning pin 2, and a through hole which penetrates longitudinally is arranged in the middle of the sleeve positioning pin and is used as an assembling through hole of the bolt 3; the standard fixture 1 is provided with a plurality of die inserts 4, and each die insert 4 is provided with an auxiliary clamping hole consisting of a counter bore and a threaded hole; the sleeve positioning pin 2 penetrates through the positioning hole of the standard fixture and the clamping hole counter bore on the die insert in sequence from the lower part and is matched with the two holes to realize the positioning of the die insert, and the bolt 3 penetrates through the sleeve positioning pin and is connected with a threaded hole in the auxiliary clamping hole for processing the die insert to realize the clamping fixation of the die insert.
Before clamping, grinding the installation reference of the die insert to ensure that the perpendicularity and the flatness of the reference surface of the die insert meet the required precision requirement; processing an auxiliary clamping hole on the die insert, wherein a counter bore on the processed auxiliary clamping hole needs to be subjected to finish milling, the bore tolerance reaches +/-0.03 mm, and the sliding fit between the counter bore and the sleeve positioning pin 2 is ensured; and processing a threaded connecting hole by taking the center of the counter bore as a reference, wherein the diameter of the thread is matched with the size of the bolt 3.
The bolt and pin integrated fastening jig integrates the functions of pin positioning and bolt fastening, and realizes that the positioning pin and the bolt are installed at the same hole opening position. The sleeve positioning pin 2 is in interference fit with the positioning hole of the standard clamp 1, and is in sliding fit with a counter bore of an auxiliary clamping hole for machining on the die insert 4. The diameter of the through hole of the sleeve positioning pin 2 is slightly larger than that of the bolt 3, and the bolt slides in the through hole of the sleeve positioning pin.
The die inserts 4 are integrated on the standard fixture 1, are connected and fastened through the sleeve positioning pins 2 and the bolts 3 of the screw and pin integrated fastening jig, and are sent into processing equipment together for integrated processing.
As shown in fig. 3, during clamping, the sleeve positioning pin 2 is inserted from the lower part of the standard fixture 1, enters a counter bore on the processing auxiliary clamping hole of the die insert 4 through a positioning hole on the standard fixture, and is inserted from the lower part of the standard fixture 1 of the bolt 3, and is connected and matched with a threaded hole on the processing auxiliary clamping hole of the die insert 4 through a central through hole of the sleeve positioning pin 2, so that the connection and fastening between the die insert 4 and the standard fixture 1 are realized.
Clamping a plurality of different die inserts on a standard fixture as shown in FIG. 4, feeding the die inserts into a machining center along with the standard fixture 1, and machining three machining reference positioning holes, namely a positioning hole A, a positioning hole B and a positioning hole C, by taking an original point center as a coordinate axis; the positioning hole A is in the direction of a coordinate X, the positioning hole B and the positioning hole C are in the direction of a coordinate Y, and machining benchmarks are determined by symmetrical distribution along coordinate axes, so that integrated machining of the die insert is realized.
Although the embodiments of the present invention have been described above, the above descriptions are only for the convenience of understanding the present invention, and are not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110575770.9A CN113134715A (en) | 2021-05-26 | 2021-05-26 | Integrated machining method for large-scale die insert and clamping and fixing device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110575770.9A CN113134715A (en) | 2021-05-26 | 2021-05-26 | Integrated machining method for large-scale die insert and clamping and fixing device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113134715A true CN113134715A (en) | 2021-07-20 |
Family
ID=76815697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110575770.9A Pending CN113134715A (en) | 2021-05-26 | 2021-05-26 | Integrated machining method for large-scale die insert and clamping and fixing device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113134715A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113751968A (en) * | 2021-09-07 | 2021-12-07 | 广东同正精密模具有限公司 | Die insert machining method for constructing machining reference by using atomic ash |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003103316A (en) * | 2001-09-27 | 2003-04-08 | Seiko Epson Corp | Press mold |
| CN101537457A (en) * | 2009-04-17 | 2009-09-23 | 重庆元创技研实业开发有限公司 | Die insert modular machining method |
| CN201410624Y (en) * | 2009-04-17 | 2010-02-24 | 重庆元创技研实业开发有限公司 | Standard modularized bearing plate for processing inserts |
| CN102500694A (en) * | 2011-10-28 | 2012-06-20 | 奇瑞汽车股份有限公司 | Die insert fixing structure |
| CN106695369A (en) * | 2015-07-13 | 2017-05-24 | 孙园园 | Auto outer door panel die trimming deflashing insert profile processing device |
| CN107042272A (en) * | 2017-04-17 | 2017-08-15 | 辽宁五八内燃机配件有限公司 | A kind of mould for preventing thin-wall hole punching forgings from deforming |
| US20200291974A1 (en) * | 2019-03-15 | 2020-09-17 | Acument Intellectual Properties, Llc | Bolted joint using deformable sleeve with longitudinal grooves |
| CN212122471U (en) * | 2020-05-29 | 2020-12-11 | 重庆平伟汽车科技股份有限公司 | Die insert processing clamping structure |
| CN112077214A (en) * | 2020-08-05 | 2020-12-15 | 格致汽车科技股份有限公司 | Machining method for functional insert of large stamping die |
| CN214868854U (en) * | 2021-05-26 | 2021-11-26 | 广东同正精密模具有限公司 | Die insert integrates processing with clamping fixing device |
-
2021
- 2021-05-26 CN CN202110575770.9A patent/CN113134715A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003103316A (en) * | 2001-09-27 | 2003-04-08 | Seiko Epson Corp | Press mold |
| CN101537457A (en) * | 2009-04-17 | 2009-09-23 | 重庆元创技研实业开发有限公司 | Die insert modular machining method |
| CN201410624Y (en) * | 2009-04-17 | 2010-02-24 | 重庆元创技研实业开发有限公司 | Standard modularized bearing plate for processing inserts |
| CN102500694A (en) * | 2011-10-28 | 2012-06-20 | 奇瑞汽车股份有限公司 | Die insert fixing structure |
| CN106695369A (en) * | 2015-07-13 | 2017-05-24 | 孙园园 | Auto outer door panel die trimming deflashing insert profile processing device |
| CN107042272A (en) * | 2017-04-17 | 2017-08-15 | 辽宁五八内燃机配件有限公司 | A kind of mould for preventing thin-wall hole punching forgings from deforming |
| US20200291974A1 (en) * | 2019-03-15 | 2020-09-17 | Acument Intellectual Properties, Llc | Bolted joint using deformable sleeve with longitudinal grooves |
| CN212122471U (en) * | 2020-05-29 | 2020-12-11 | 重庆平伟汽车科技股份有限公司 | Die insert processing clamping structure |
| CN112077214A (en) * | 2020-08-05 | 2020-12-15 | 格致汽车科技股份有限公司 | Machining method for functional insert of large stamping die |
| CN214868854U (en) * | 2021-05-26 | 2021-11-26 | 广东同正精密模具有限公司 | Die insert integrates processing with clamping fixing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113751968A (en) * | 2021-09-07 | 2021-12-07 | 广东同正精密模具有限公司 | Die insert machining method for constructing machining reference by using atomic ash |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217493461U (en) | Flexible combined clamp suitable for multi-surface machining | |
| CN102328216A (en) | Fixture for excircle finish turning and fixture processing method | |
| CN214868854U (en) | Die insert integrates processing with clamping fixing device | |
| CN101733663A (en) | Novel general key groove milling fixture | |
| CN215281032U (en) | Adjustable positioning and stopping device for inner cavity hole machining | |
| CN119609711A (en) | Multi-working-procedure grouping quick-change device for machining rocker arm parts and machining method | |
| CN218556754U (en) | Clamping device | |
| CN110561139A (en) | General clamping device of axle type part | |
| CN110625342B (en) | Method for manufacturing gyroscope substrate | |
| CN208195747U (en) | A kind of fixture for aircraft escape door brace drill bore hole | |
| CN210360402U (en) | Positioning fixture for chamfering connecting rod | |
| CN102896525A (en) | Fixture for machining cam link | |
| CN219945875U (en) | Tool clamp for processing semiconductor parts | |
| CN207710351U (en) | a positioning tool | |
| CN223876588U (en) | A multi-specification workpiece positioning component for a machining center | |
| CN217551814U (en) | Milling machine extension workstation | |
| CN218556343U (en) | Cutting positioning device suitable for single-process double-station thin-wall lathe | |
| CN223629966U (en) | A type of machining fixture for thin-walled aerospace applications | |
| CN119141167B (en) | Machining methods to improve the coaxiality of the spindle bores in the worktable housing | |
| CN213531718U (en) | Precision parts machining frock | |
| CN219074477U (en) | Clamp for milling screw holes and peripheral molded surfaces of supporting piece | |
| CN119187655B (en) | Processing method of special-shaped part | |
| CN215393814U (en) | High-precision locking clamp | |
| CN219617197U (en) | Special tool for machining special-shaped thin-wall part | |
| CN220920931U (en) | Clamp for machining eccentric shaft body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210720 |
|
| RJ01 | Rejection of invention patent application after publication |