CN111136176B - Stamping die wedge processing method - Google Patents
Stamping die wedge processing method Download PDFInfo
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- CN111136176B CN111136176B CN201911396843.7A CN201911396843A CN111136176B CN 111136176 B CN111136176 B CN 111136176B CN 201911396843 A CN201911396843 A CN 201911396843A CN 111136176 B CN111136176 B CN 111136176B
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- wedge
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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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/20—Making tools by operations not covered by a single other subclass
Abstract
The invention provides a method for processing a tapered wedge of a stamping die, which belongs to the technical field of stamping dies and comprises the steps of reference surface processing, rough processing of a tapered wedge slide guide surface, rough processing of a profile contour, profile contour quenching, finish processing of a tapered wedge slide guide surface, tapered wedge assembly of a processing die holder, finish processing of a profile contour and the like. The method for processing the tapered wedge of the stamping die comprises the steps of performing single rough processing on the tapered wedge, then quenching the profile and the outline of the tapered wedge, performing finish machining on a slide guide surface on the tapered wedge after quenching, and finally assembling the tapered wedge on a die holder. The problem that the error between the profile contour of the inclined wedge assembled on the die holder and the profile contour of the die holder is large due to the fact that the inclined wedge is always and independently machined in place is solved.
Description
Technical Field
The invention belongs to the technical field of stamping dies, and particularly relates to a stamping die wedge processing method.
Background
With the development of economy in China, the popularization rate of automobiles in life is higher and higher. The automobile covering part is an important part for supporting a vehicle body and other parts of an automobile, and the automobile covering part needs to be formed by drawing, trimming, punching and the like of a plate in sequence by using a stamping die in the manufacturing process. The wedge is a heavy pressing part in a stamping die and plays a role in changing the stamping direction in the die, and the wedge has the working principle that an inclined mounting surface is arranged on a die holder, the wedge is slidably mounted on the inclined mounting surface, and then the movement in the vertical direction is converted into the movement of the wedge along the inclined mounting surface by extrusion in the vertical direction. However, most of the existing stamping dies have the problem that the error between the profile contour of the inclined wedge and the profile contour of the die holder is large after the inclined wedge is processed and assembled on the die holder.
Disclosure of Invention
The invention aims to provide a method for processing a tapered wedge of a stamping die, and aims to solve the problem that the error between the contour of the tapered wedge and the contour of a die holder is large after the conventional tapered wedge is processed and assembled.
In order to achieve the purpose, the invention adopts the technical scheme that: the method for processing the inclined wedge of the stamping die comprises the following steps:
processing reference surfaces, namely processing at least two reference surfaces on a process leg on the side surface of the wedge, and processing a fixing screw hole for fixing the wedge on the reference surfaces;
roughly machining a slide guide surface of the wedge, enabling the slide guide surface of the wedge to face upwards, machining the slide guide surface of the wedge by taking a reference surface as a reference, reserving a finish machining amount, and measuring the machined slide guide surface;
roughly machining the profile of the profile, namely facing the guide sliding surface of the wedge downwards, using the guide sliding surface of the wedge as a reference, machining the profile and the profile on the wedge, reserving finish machining amount, and measuring the machined profile and the machined profile;
quenching the profile of the profile, namely quenching the profile and the profile on the wedge and cooling in air;
finely machining the slide wedge guide sliding surface, enabling the slide wedge guide sliding surface to face upwards, machining the guide sliding surface and other structural surfaces of the slide wedge in place, and measuring the number of the machined guide sliding surface;
processing a die holder, namely processing an installation inclined plane for installing the wedge and other structural surfaces on the die holder in place;
assembling a wedge, assembling the wedge into the processed die holder, adjusting the wedge to the position where the wedge works, and locking and fixing the wedge; and
and (4) finishing the profile profiles, and processing all the profile profiles into position.
As another embodiment of the present application, the step of processing the reference surface further includes the following steps:
and arranging a process leg on the side surface of the model of the wedge lost foam before casting the wedge, casting and molding the wedge and annealing.
As another embodiment of the present application, the step of finishing the profile further comprises the steps of:
manufacturing a reference hole of the wedge, and processing the reference hole on the wedge body by taking the reference hole of the die holder as a reference;
detaching the wedge, and detaching the wedge from the die holder; and
and (4) independently processing the wedge, and independently processing the profile and the contour which are not processed in place on the wedge.
As another embodiment of the present application, the tolerance range of the diameter size of the reference hole in the step of making the wedge reference hole is +0mm- +0.005 mm.
As another embodiment of the present application, the quenching manner in the profile quenching step is flame quenching, and the temperature of the flame quenching is 630-.
As another embodiment of the application, the remaining processing amount of the wedge guide sliding surface in the step of roughly processing the wedge guide sliding surface is 0.3mm-0.6 mm.
As another embodiment of the application, the amount of processing left by the profile and the profile in the step of roughly processing the profile is 0.3mm-0.6 mm.
As another embodiment of the present application, the step of processing the die holder further includes:
roughly machining the bottom surface of the die holder, wherein the front surface of the die holder faces upwards, at least four reference surfaces are machined on the front surface of the die holder, the die holder is turned, and the bottom surface of the die holder is roughly machined;
the fine machining die holder bottom surface is subjected to fine machining, and a positioning key groove for determining the position of the die holder on the press machine and other structural surfaces on the bottom surface are machined on the die holder bottom surface;
manufacturing a machining standard, namely, enabling the front side of the die holder to face upwards, and machining at least three standard holes and at least three standard surfaces on the die holder by taking a positioning key groove and the bottom surface of the bottom of the die holder as the standard;
and processing an insert mounting surface, taking the reference hole and the reference surface on the die holder as references, processing a mounting surface for mounting the insert and other structural surfaces on the front surface of the die holder, and pointing out the position of the insert mounting screw hole.
As another embodiment of the present application, the step of finishing the bottom surface of the die holder further comprises:
and vibration aging, namely vibrating the die holder by using a vibration device, wherein when the vibration time is longer than four hours, the position of the vibration device on the die holder is replaced every one hour in the vibration process.
As another embodiment of the present application, the tolerance range of the diameter dimension of the reference hole in the reference step of the manufacturing process is +0mm- +0.005 mm.
The processing method of the stamping die wedge provided by the invention has the beneficial effects that: compared with the prior art, the method for processing the tapered wedge of the stamping die is used for processing the tapered wedge of the stamping die in a fine mode by firstly and independently carrying out rough processing on the tapered wedge, then quenching the profile and the outline of the tapered wedge, carrying out fine processing on the guide sliding surface on the tapered wedge after quenching, and finally assembling the tapered wedge on the die holder. The problem that the error between the profile contour of the inclined wedge assembled on the die holder and the profile contour of the die holder is large due to the fact that the inclined wedge is always and independently machined in place is solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic flow chart of a method for processing a tapered wedge of a stamping die according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a method for processing a wedge of a stamping die according to the present invention will now be described. The method for processing the inclined wedge of the stamping die comprises the following steps:
processing reference surfaces, namely processing at least two reference surfaces on a process leg on the side surface of the wedge, and processing a fixing screw hole for fixing the wedge on the reference surfaces;
roughly machining a slide guide surface of the wedge, enabling the slide guide surface of the wedge to face upwards, machining the slide guide surface of the wedge by taking a reference surface as a reference, reserving a finish machining amount, and measuring the machined slide guide surface;
roughly machining the profile of the profile, namely facing the guide sliding surface of the wedge downwards, using the guide sliding surface of the wedge as a reference, machining the profile and the profile on the wedge, reserving finish machining amount, and measuring the machined profile and the machined profile;
quenching the profile of the profile, namely quenching the profile and the profile on the wedge and cooling in air;
finely machining the slide wedge guide sliding surface, enabling the slide wedge guide sliding surface to face upwards, machining the guide sliding surface and other structural surfaces of the slide wedge in place, and measuring the number of the machined guide sliding surface;
processing a die holder, namely processing an installation inclined plane for installing the wedge and other structural surfaces on the die holder in place;
assembling a wedge, assembling the wedge into the processed die holder, adjusting the wedge to the position where the wedge works, and locking and fixing the wedge; and
and (4) finishing the profile profiles, and processing all the profile profiles into position.
Compared with the prior art, the method for processing the tapered wedge of the stamping die provided by the embodiment of the invention has the advantages that the tapered wedge is processed finely in a mode of firstly performing single rough processing on the tapered wedge, then quenching the profile and the outline of the tapered wedge, performing finish machining on the slide guide surface on the tapered wedge after quenching, and finally assembling the tapered wedge on the die holder. The problem that the error between the profile contour of the inclined wedge assembled on the die holder and the profile contour of the die holder is large due to the fact that the inclined wedge is always and independently machined in place is solved.
As a specific embodiment of the method for processing the tapered wedge of the stamping die provided by the present invention, referring to fig. 1, the method further includes the following steps before the step of processing the reference surface:
and arranging a process leg on the side surface of the model of the wedge lost foam before casting the wedge, casting and molding the wedge and annealing. After the wedge lost foam is machined, 4 rectangular columns are stuck to the side face of the lost foam, usually on the non-working face of the wedge. Thus, 4 technological legs for clamping the inclined wedge can be formed on the inclined wedge after the inclined wedge is cast. As the wedge is integrally assembled by the Mitsubishi column, the wedge is difficult to clamp and align, and the process legs can make the clamping and processing of the wedge more convenient.
Referring to fig. 1, the method for processing a tapered wedge of a stamping die according to an embodiment of the present invention further includes the following steps after the step of finishing the profile:
manufacturing a reference hole of the wedge, processing the reference hole on the wedge body by taking the reference hole of the die holder as a reference, wherein the diameter of the reference hole is 10mm, a reference surface is processed around the reference hole, and punching the center coordinate of the reference hole on the die holder;
detaching the wedge, detaching the wedge from the die holder by a fitter, detaching all standard parts of the wedge interfering with machining, and conveying the wedge to a machine tool of a machining center; and
and (3) independently processing the wedge, independently processing the profile and the contour which are not processed in place on the wedge, and processing the profile contour which is not processed in place on the wedge by taking the guide sliding surface of the wedge as the bottom surface and making the guide sliding surface of the wedge face downwards.
When the wedge is assembled on the die holder, the reference hole of the die holder is used as a reference to process the reference hole of the wedge on the wedge, and then the wedge is detached to process the position which can not be processed because the wedge is interfered by the parts on the die holder.
Referring to fig. 1, as a specific embodiment of the method for processing a tapered wedge of a stamping die, a tolerance range of a diameter size of a reference hole in a step of forming a tapered wedge reference hole is +0mm to +0.005 mm. The tolerance range of the reference hole adopts the numerical value, so that the machining precision of each part of the die is better on the premise of effectively ensuring the machining efficiency, the reference surface is machined around the reference hole, and marks are marked beside the reference surface. The setting of benchmark hole can guarantee that the slide wedge is the same with the benchmark of die holder, makes the assembly precision of slide wedge assembly back on the die holder better, also can guarantee machining efficiency simultaneously.
Referring to fig. 1, as a specific embodiment of the method for processing the tapered wedge of the stamping die, the quenching mode in the step of quenching the profile contour is flame quenching, and the temperature of the flame quenching is 630-. And (3) performing flame quenching by adopting flame quenching, wherein an acetylene flame gun is used for performing surface flame quenching along the cutting edge direction of the insert, and the moving speed of the acetylene flame gun is ensured to be about 0.4 mm/s.
Referring to fig. 1, as a specific embodiment of the method for processing the tapered wedge of the stamping die, the remaining processing amount of the tapered wedge slide guide surface in the step of roughly processing the tapered wedge slide guide surface is 0.3mm to 0.6 mm. After the contour and the molded surface of the wedge are quenched, the wedge is deformed due to quenching, the machining amount of the wedge is kept to be 0.3-0.6 mm, so that local loss can be avoided when the wedge is subjected to finish machining after deformation, and the finish machining efficiency can not be influenced by too large cutting amount of a cutter in the finish machining process due to too much flow.
Referring to fig. 1, the machining amount of the profile and the profile left in the step of roughly machining the profile is 0.3mm to 0.6mm, and the machining amount of the profile and the profile left in the rough machining is 0.3mm to 0.5mm, so that the thickness of a quenching layer is ensured within a required range during quenching, the deformation of the cutting edge of an insert is ensured not to exceed the remaining amount during finish machining, the situation that the cutting edge is notched and not machined in place can be prevented on the premise of ensuring the hardness of the cutting edge after quenching, and the effect of the finish machining caused by too much cutting amount of a cutter can be prevented.
As a specific embodiment of the method for processing a tapered wedge of a stamping die provided by the present invention, referring to fig. 1, the step of processing the die holder includes:
roughly machining the bottom surface of the die holder, wherein the front surface of the die holder faces upwards, at least four reference surfaces are machined on the front surface of the die holder, the die holder is turned, and the bottom surface of the die holder is roughly machined;
finely machining the bottom surface of the die holder, keeping the bottom surface of the die holder still after rough machining of the bottom surface of the die holder is completed, adjusting the feeding speed and cutting speed of each machining, finely machining the bottom surface of the die holder, and machining a positioning key groove for determining the position of the die holder on a press machine and other structural surfaces on the bottom surface of the die holder;
making reference holes, namely making the front side of the die holder upwards, processing at least three reference holes and at least three reference surfaces on the die holder by taking a positioning key groove at the bottom of the die holder and the bottom surface as references, and engraving coordinate values near the reference holes or the reference surfaces according to coordinates measured by a machine tool after the reference holes and the reference platform are processed;
and processing an insert mounting surface, taking a reference hole and a reference surface on the die holder as references, processing a mounting surface for mounting an insert and other structural surfaces on the front surface of the die holder, and pointing out the position of an insert mounting screw hole, wherein a pit with the depth of 0.5mm-1mm is processed on the insert mounting surface at the insert position by using a pit cutting tool.
Referring to fig. 1, before the step of finishing the bottom surface of the die holder, the method for processing the tapered wedge of the stamping die according to the present invention further includes:
and (3) carrying out vibration aging on the die holder, and vibrating the die holder by using a vibrating device, wherein when the vibration time is longer than four hours, the position of the vibrating device on the die holder is replaced every hour in the vibration process.
The aging vibration is used for eliminating the stress in the die holder, the vibration equipment is fixed at the bottom of the die holder, then the die holder is driven to move and vibrate, the residual stress in the die holder is eliminated through vibration, the die holder is prevented from deforming again after finish machining, the vibration aging is carried out at four corners of the die holder, the fixing positions of the vibration aging equipment are replaced every other small time, the stress of the die holder is released more uniformly, the die holder is prevented from deforming due to stress release after machining, and the machining precision of the die is higher.
As a specific embodiment of the method for processing the tapered wedge of the stamping die, please refer to fig. 1, in the step of making the processing reference, the tolerance range of the reference hole is +0mm- +0.005mm, and the tolerance range of the reference hole adopts the value, so that the processing precision of each part of the die is better on the premise of effectively ensuring the processing efficiency, and the reference surface is processed around the reference hole and marked beside the reference surface.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The method for processing the tapered wedge of the stamping die is characterized by comprising the following steps of:
arranging a process leg, arranging the process leg on the side surface of the model of the tapered wedge lost foam before casting the tapered wedge, casting and molding the tapered wedge and annealing;
processing reference surfaces, namely processing at least two reference surfaces on a process leg on the side surface of the wedge, and processing a fixing screw hole for fixing the wedge on the reference surfaces;
roughly machining a slide guide surface of the wedge, enabling the slide guide surface of the wedge to face upwards, machining the slide guide surface of the wedge by taking a reference surface as a reference, reserving a finish machining amount, and measuring the machined slide guide surface;
roughly machining the profile of the profile, namely facing the guide sliding surface of the wedge downwards, using the guide sliding surface of the wedge as a reference, machining the profile and the profile on the wedge, reserving finish machining amount, and measuring the machined profile and the machined profile;
quenching the profile of the profile, namely quenching the profile and the profile on the wedge in a flame quenching mode, wherein the temperature of the flame quenching is 630-650 ℃, and cooling in air;
finely machining the slide wedge guide sliding surface, enabling the slide wedge guide sliding surface to face upwards, machining the guide sliding surface and other structural surfaces of the slide wedge in place, and measuring the number of the machined guide sliding surface;
processing die holder includes: roughly machining the bottom surface of the die holder, wherein the front surface of the die holder faces upwards, at least four reference surfaces are machined on the front surface of the die holder, the die holder is turned, and the bottom surface of the die holder is roughly machined; vibration aging, namely vibrating the die holder by using a vibrating device, and replacing the position of the vibrating device on the die holder every other hour in the vibrating process when the vibration time is longer than four hours; the fine machining die holder bottom surface is subjected to fine machining, and a positioning key groove for determining the position of the die holder on the press machine and other structural surfaces on the bottom surface are machined on the die holder bottom surface; manufacturing a machining standard, namely enabling the front face of the die holder to face upwards, and machining at least three standard holes and at least three standard surfaces on the die holder by taking a positioning key groove at the bottom of the die holder and the bottom face as the standard; processing an insert mounting surface, taking a reference hole and a reference surface on the die holder as references, processing a mounting surface for mounting an insert and other structural surfaces on the front surface of the die holder, and pointing out the position of an insert mounting screw hole; processing an installation inclined plane for installing a wedge and other structural surfaces on a die holder in place;
assembling a wedge, assembling the wedge into the processed die holder, adjusting the wedge to the position where the wedge works, and locking and fixing the wedge; and
finishing the profile of the molded surface, and processing all the profiles of the molded surface in place;
manufacturing a reference hole of the wedge, and processing the reference hole on the wedge body by taking the reference hole of the die holder as a reference;
detaching the wedge, and detaching the wedge from the die holder; and
and (4) independently processing the wedge, and independently processing the profile and the contour which are not processed in place on the wedge.
2. The method for processing a press die wedge according to claim 1, wherein the reference hole diameter size in the step of forming the wedge reference hole has a tolerance range of +0mm to +0.005 mm.
3. The method for processing the tapered wedge of the stamping die as claimed in claim 1, wherein the remaining processing amount of the tapered wedge guiding and sliding surface in the step of roughly processing the tapered wedge guiding and sliding surface is 0.3mm to 0.6 mm.
4. The method for processing the inclined wedge of the stamping die as claimed in any one of claims 1 to 3, wherein the amount of processing left by the profile and the profile in the step of roughly processing the profile is 0.3mm to 0.6 mm.
5. The method of manufacturing a press die wedge according to claim 4, wherein the reference hole diameter size in the reference manufacturing step has a tolerance range of +0mm to +0.005 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911396843.7A CN111136176B (en) | 2019-12-30 | 2019-12-30 | Stamping die wedge processing method |
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| CN201911396843.7A CN111136176B (en) | 2019-12-30 | 2019-12-30 | Stamping die wedge processing method |
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| CN111136176A CN111136176A (en) | 2020-05-12 |
| CN111136176B true CN111136176B (en) | 2022-08-05 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0642969B2 (en) * | 1987-03-25 | 1994-06-08 | エスア−ルエンジニアリング株式会社 | Clamp device |
| JP2000126817A (en) * | 1998-10-22 | 2000-05-09 | Amada Co Ltd | Device for clamping dies |
| CN103962462B (en) * | 2013-01-29 | 2016-04-06 | 上海赛科利汽车模具技术应用有限公司 | The positioning and processing method of cam die |
| CN104551534A (en) * | 2013-10-29 | 2015-04-29 | 青岛天恒机械有限公司 | Numerical control machining method for large-size entire magnesium alloy casting |
| CN104384360B (en) * | 2014-07-30 | 2016-08-17 | 上海屹丰汽车模具制造有限公司 | Utilize the processing method becoming wedge benchmark at any angle with die holder |
| CN108857265A (en) * | 2017-05-12 | 2018-11-23 | 帅钢模架（苏州）有限公司 | A kind of mark mould processing process |
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