CN214868854U - Die insert integrates processing with clamping fixing device - Google Patents
Die insert integrates processing with clamping fixing device Download PDFInfo
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- CN214868854U CN214868854U CN202121140409.5U CN202121140409U CN214868854U CN 214868854 U CN214868854 U CN 214868854U CN 202121140409 U CN202121140409 U CN 202121140409U CN 214868854 U CN214868854 U CN 214868854U
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Abstract
The utility model discloses a clamping fixing device for integrated processing of a die insert, which comprises a standard clamp and a screw and pin integrated fastening jig; the standard fixture is provided with a plurality of clamping positioning holes arranged in an array and three machining reference positioning holes; the screw and pin integrated fastening jig comprises a sleeve positioning pin and a bolt; chamfers are arranged at two ends of the sleeve positioning pin, and a through hole which penetrates longitudinally is arranged in the middle of the sleeve positioning pin; the standard fixture is provided with a plurality of die inserts, each die insert is provided with two processing auxiliary positioning holes, one of the two processing auxiliary positioning holes is a counter bore, the other one of the two processing auxiliary positioning holes is a threaded hole, and the counter bore and the threaded hole are concentric.
Description
Technical Field
The utility model relates to a mould integrates the processing technology field, especially relates to a clamping fixing device that processing usefulness was inserted to mould.
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, the integrated processing method has two problems, 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 wait for the die holders to return for processing, 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 problem, the utility model aims at providing a die insert processing is with clamping fixing device.
The purpose of the utility model is realized through the following technical scheme:
a clamping and fixing device for machining a die insert comprises a standard clamp and a screw and pin integrated fastening jig;
the standard fixture is provided with a plurality of clamping positioning holes arranged in an array and three machining reference positioning holes; the screw and pin integrated fastening jig comprises a sleeve positioning pin and a bolt; chamfers are arranged at two ends of the sleeve positioning pin, and a through hole which penetrates longitudinally is arranged in the middle of the sleeve positioning pin; the standard fixture is provided with a plurality of die inserts, each die insert is provided with two processing auxiliary positioning holes, one of the two processing auxiliary positioning holes is a counter bore, the other one of the two processing auxiliary positioning holes is a threaded hole, and the counter bore and the threaded hole are concentric.
Compared with the prior art, the utility model discloses an advantage can have as follows to one or more embodiments:
the standard fixture is simple in shape and convenient to machine, and the die inserts can be compactly placed on the standard fixture according to the shape without being placed according to the installation positions on the die holders; because the size of the standard clamp is much smaller than that of the large die holder, large-scale machining equipment is not needed in the method, and the machining cost can be reduced; in addition, for the module needing to be maintained or replaced, the clamp can be conveniently used for maintenance and remanufacturing, and the interchangeability of parts is high.
The fixing method used by the device integrates sleeve positioning pin positioning and bolt fastening, 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 bolts and the sleeve positioning pins required in the 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 schematic view of a stationary die insert;
FIG. 2 is a top view of a standard fixture;
FIG. 3 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 clearer, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
As shown in fig. 1 to 3, the clamping and fixing device for machining a die insert provided by the present embodiment includes: the standard clamp 1 and the screw pin integrated fastening jig;
the standard fixture 1 is provided with a plurality of clamping positioning holes arranged in an array and three machining reference positioning holes; 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; the standard fixture 1 is provided with a plurality of die inserts 4, each die insert is provided with two processing auxiliary positioning holes, one of the two processing auxiliary positioning holes is a counter bore, the other one of the two processing auxiliary positioning holes is a threaded hole, and the counter bore and the threaded hole are concentric.
As shown in fig. 2, during clamping, the sleeve positioning pin 2 penetrates from the lower part of the standard fixture 1, and enters a counter bore on the processing auxiliary positioning hole of the die insert 4 through the positioning hole on the standard fixture 1, and the bolt 3 penetrates through the central through hole of the sleeve positioning pin from the lower part of the standard fixture and is matched with the threaded hole on the processing auxiliary positioning hole of the die insert, so that the clamping and fixing of the die insert are realized.
The sleeve positioning pin 2 and the bolt 3 are arranged at the same hole opening position of the clamping and fixing device, a central through hole of the sleeve positioning pin 2 is a through hole of the bolt 3, and the device integrates positioning functions of the positioning pin and fastening functions of the bolt.
The geometric center of the standard clamp 1 is set as a machining original point, and three machining reference positioning holes, namely a positioning hole A, a positioning hole B and a positioning hole C, are machined by taking the original point center as a coordinate axis; the positioning holes A are in the direction of a coordinate X, and the positioning holes B and the positioning holes C are in the direction of a coordinate Y and are symmetrically distributed along the coordinate axis.
As shown in fig. 3, a standard fixture is provided with a plurality of different die inserts, the die inserts are sent to a machining center along with the standard fixture 1, and the machining datum is determined by three machining datum positioning holes a, a datum positioning hole B and a datum positioning hole C, so that the die inserts are integrally machined
The sleeve positioning pin 2 is in interference fit with a positioning hole of the standard clamp 1 and is in clearance fit with a positioning hole of the die insert 4. The bottom of the die insert 4 is flat and is arranged on the standard clamp 1, and a positioning hole of the standard clamp and a positioning hole of the die insert are coaxial. The diameter of the central hole of the sleeve positioning pin 2 is larger than that of the bolt 3, and the bolt 3 freely slides in the central through hole of the sleeve positioning pin. The diameter machining tolerance of the counter bore reaches less than +/-0.03 mm, and the counter bore is in sliding fit with the sleeve positioning pin 3.
When the device is installed, the plurality of die inserts 4 are firstly arranged on the standard fixture, all the positioning holes on each die insert are respectively coaxial with one positioning hole on the standard fixture, the fixing method used by the device integrates positioning of the sleeve positioning pin and fastening of the bolt, the bolt penetrates through the center of the sleeve positioning pin hole, and the sleeve positioning pin and the bolt are installed at the same hole opening position, and the specific fixing method is as follows: the positioning holes of the standard clamp and the die insert are sequentially penetrated from the lower part by using a sleeve positioning pin to form matching with the two positioning holes, so that the positioning of each die insert is realized, and the bolt 3 penetrates through a sleeve positioning pin through hole from the lower part and then is connected with the internal thread of the die insert through an external thread, so that the fastening of each die insert is realized; the diameter of the through hole of the sleeve positioning pin is slightly larger than that of the bolt, and the bolt can slide in the through hole of the sleeve positioning pin; the sizes and the shapes of a plurality of bolts and sleeve positioning pins used in the installation are completely the same, and the interchangeability of parts is high.
After the plurality of die inserts are integrally clamped and fixed on the clamping and fixing device for die insert machining, the die inserts and the clamping and fixing device are sent into machining equipment together for integrated machining, and machining of a large-scale stamping part die can be efficiently completed by using small machining equipment.
According to the embodiment, the die insert can be clamped and fixed in integrated machining, the screw and pin integrated fastening jig integrates positioning and fastening functions, the space required for fixing the die insert is reduced, the integration degree of the standard clamp can be obviously improved, large-scale machining equipment is not required in the integrated machining method, the machining efficiency is improved, and the machining cost is greatly reduced.
Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. It will be apparent to persons skilled in the relevant art that various changes in form and detail can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A clamping and fixing device for integrated machining of a die insert is characterized by comprising a standard clamp (1) and a screw and pin integrated fastening jig;
the standard fixture (1) is provided with a plurality of clamping positioning holes arranged in an array and three machining reference positioning holes; 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; the standard fixture (1) is provided with a plurality of die inserts (4), each die insert is provided with two processing auxiliary positioning holes, one of the two processing auxiliary positioning holes is a counter bore, the other one of the two processing auxiliary positioning holes is a threaded hole, and the counter bore and the threaded hole are concentric.
2. The clamping and fixing device for integrated machining of the die insert according to claim 1, wherein the sleeve positioning pin (2) penetrates from the lower part of the standard fixture (1), passes through the positioning hole in the standard fixture (1), and enters the counter bore in the machining auxiliary positioning hole of the die insert (4), and the bolt (3) penetrates through the central through hole of the sleeve positioning pin from the lower part of the standard fixture and is matched with the threaded hole in the machining auxiliary positioning hole of the die insert, so that the clamping and fixing of the die insert are realized.
3. The clamping and fixing device for integrated machining of the die insert according to claim 1, wherein the sleeve positioning pin (2) and the bolt (3) are installed at the same hole opening position of the clamping and fixing device, and the central through hole of the sleeve positioning pin (2) is a through hole of the bolt (3).
4. The clamping and fixing device for integrated machining of the die insert according to claim 1, wherein the geometric center of the standard jig (1) is set as a machining origin, and three machining reference positioning holes, namely a positioning hole A, a positioning hole B and a positioning hole C, are machined by taking the origin center as a coordinate axis; the positioning holes A are in the direction of a coordinate X, and the positioning holes B and the positioning holes C are in the direction of a coordinate Y and are symmetrically distributed along the coordinate axis.
5. The clamping and fixing device for integrated machining of the die insert according to claim 1, wherein the sleeve positioning pin (2) is in interference fit with a positioning hole of a standard fixture (1) and is in clearance fit with a positioning hole of the die insert (4).
6. The clamping and fixing device for the integrated machining of the die insert according to claim 1, wherein the bottom of the die insert (4) is flat and is arranged on a standard clamp (1), and a positioning hole of the standard clamp is coaxial with a positioning hole of the die insert.
7. The clamping and fixing device for integrated machining of the die insert according to claim 1, wherein the diameter of the central hole of the sleeve positioning pin (2) is larger than that of the bolt (3), and the bolt (3) freely slides in the central through hole of the sleeve positioning pin.
8. The clamping and fixing device for integrated machining of the die insert according to claim 1, wherein the diameter machining tolerance of the counter bore is up to +/-0.03 mm, and the counter bore is in sliding fit with the sleeve positioning pin (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121140409.5U CN214868854U (en) | 2021-05-26 | 2021-05-26 | Die insert integrates processing with clamping fixing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121140409.5U CN214868854U (en) | 2021-05-26 | 2021-05-26 | Die insert integrates processing with clamping fixing device |
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| CN214868854U true CN214868854U (en) | 2021-11-26 |
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| CN202121140409.5U Active CN214868854U (en) | 2021-05-26 | 2021-05-26 | Die insert integrates processing with clamping fixing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113134715A (en) * | 2021-05-26 | 2021-07-20 | 广东同正精密模具有限公司 | Integrated machining method for large-scale die insert and clamping and fixing device thereof |
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2021
- 2021-05-26 CN CN202121140409.5U patent/CN214868854U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113134715A (en) * | 2021-05-26 | 2021-07-20 | 广东同正精密模具有限公司 | Integrated machining method for large-scale die insert and clamping and fixing device thereof |
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