阅读说明：本技术 一种应用加工治具加工径向锻造机锻造模具的方法 (Method for machining forging die of radial forging machine by applying machining jig ) 是由 奥出丰 任烨 段微 茅晓晓 于 2021-09-27 设计创作，主要内容包括：本发明提供一种应用加工治具加工径向锻造机锻造模具的方法,锻造模具包括安装部和锻造部,加工治具包括外壳、垫片和底座。装夹时,底座与锻造模具的安装部的尾部锁紧,外壳、垫片与锻造模具的安装部锁紧。此加工治具可同时装夹多个锻造模具进行车削加工,降低加工难度,提高加工效率,并且能够保证多个模具的尺寸一致性,保证锻造精度；外壳的安装槽位与锻造模具的锥度相匹配,装夹操作快速、便捷,降低了加工难度；垫片具有不同厚度规格,通过不同厚度的垫片的更换实现锻造模具不同部位圆弧的车削,操作方便；此加工治具可用于装夹不同型号的锻造模具进行车削加工,结构简单,可有效节省空间,降低制造成本,通用性高。(The invention provides a method for processing a forging die of a radial forging machine by using a processing jig. During clamping, the base is locked with the tail part of the mounting part of the forging die, and the shell, the gasket and the mounting part of the forging die are locked. The processing jig can simultaneously clamp a plurality of forging dies for turning, reduces the processing difficulty, improves the processing efficiency, can ensure the size consistency of the plurality of dies and ensures the forging precision; the mounting groove position of the shell is matched with the taper of the forging die, so that the clamping operation is quick and convenient, and the processing difficulty is reduced; the gaskets have different thickness specifications, the turning of arcs at different parts of the forging die is realized by replacing the gaskets with different thicknesses, and the operation is convenient; the processing jig can be used for clamping forging dies of different models to perform turning processing, is simple in structure, can effectively save space, reduces manufacturing cost, and is high in universality.)

1. A method for processing a forging die of a radial forging machine by using a processing jig comprises a mounting part and a forging part, wherein the mounting part is provided with at least one clamping hole, the tail end of the mounting part is provided with at least one positioning hole, and the central axis of the clamping hole is perpendicular to the central axis of the positioning hole; the method is characterized in that:

the processing jig comprises a shell, a gasket and a base; the shell is in a hollow cylindrical shape, a plurality of mounting groove positions for mounting the forging die are arranged on the inner wall of the shell, the mounting groove positions extend along the axial direction of the shell, and the structures of the mounting groove positions are matched with those of the mounting part of the forging die; a plurality of first assembling holes which penetrate through the shell along the radial direction are formed in the mounting groove position; the gasket is arranged in the mounting groove position, the structure of the gasket is matched with that of the mounting groove position, a plurality of second assembling holes are formed in the gasket, and the structures of the second assembling holes are matched with those of the first assembling holes and the positioning holes; the base is detachably connected to the tail end of the shell and is in a circular ring shape, a plurality of die connecting holes are formed in the base, and the structures of the die connecting holes are matched with those of the positioning holes;

the processing method comprises the following steps:

step S1: clamping: placing the gasket with the first thickness in the corresponding mounting groove positions, placing a plurality of forging dies to be processed in the corresponding mounting groove positions, penetrating a first screw through a die connecting hole in the base and a positioning hole in the tail end of the mounting part of the forging die, and screwing the first screw tightly to realize the locking of the tail end of the forging die; sequentially penetrating a second screw through a first assembling hole in the shell, a second assembling hole in the corresponding gasket and a clamping hole in the forging die mounting part, screwing the second screw, tightly attaching the forging parts of the plurality of forging dies, and locking the mounting part through the second screw;

step S2: processing a central arc: integrally fixing the machining jig after clamping the forging die on a numerical control lathe, and turning by using the numerical control lathe to machine a central arc of a forging part of the forging die;

step S3: disassembling: the whole machining jig is detached from the numerical control machine tool, the second screw and the first screw are loosened, and the forging die after the central arc is machined is taken out;

step S4: secondary clamping: placing the gasket with the second thickness in the corresponding mounting groove position, placing a plurality of forging dies with the arc-shaped center into the corresponding mounting groove positions, penetrating a first screw through a die connecting hole in the base and a positioning hole at the tail end of the mounting part of the forging die, and screwing the first screw tightly to realize tail end locking of the forging die; sequentially penetrating a second screw through a first assembling hole in the shell, a second assembling hole in the corresponding gasket and a clamping hole in the forging die mounting part, screwing the second screw, tightly attaching the forging parts of the plurality of forging dies, and locking the mounting part through the second screw;

step S5: processing the outer side great arc: integrally fixing the machining jig after clamping the forging die on a numerical control lathe, and turning by using the numerical control lathe to machine the outer side large arc of the forging part of the forging die;

step S6: disassembling: and (4) integrally detaching the processing jig from the numerical control machine tool, loosening the second screw and the first screw, and taking out the processed forging die.

2. The process of claim 1 wherein: the second thickness is less than the first thickness.

3. The process of claim 1 wherein: the tail end of the shell is provided with a base mounting groove, a plurality of base connecting holes are arranged in the base mounting groove, and the central axis of each base connecting hole is parallel to the central axis of the shell; the base is provided with a plurality of fixing holes, the structures of the fixing holes are matched with the structures of the base connecting holes, and the base is detachably fixed in the base mounting groove through fastening screws.

4. The process of claim 3 wherein: the middle part of base is equipped with the centre bore, and a plurality of mould connecting holes are followed the circumference of centre bore is evenly arranged, and a plurality of fixed orificess are followed the circumference of centre bore is evenly arranged.

5. The process of claim 1 wherein: the installation part of the forging die is provided with a taper, and the thickness of the installation part is gradually reduced from the head to the tail along the length direction of the forging die.

6. The process of claim 5 wherein: the tank bottom of installation trench has the tapering, and its tapering is the same with the tapering of the installation department of forging the mould.

7. The process of claim 6 wherein: the number of the installation slot positions is four, the four installation slot positions are evenly distributed along the circumferential direction of the inner wall of the shell, and the gasket is arranged in each installation slot position.

8. The process according to any one of claims 1 to 7, wherein: the gasket has a variety of thickness specifications.

9. The process according to any one of claims 1 to 7, wherein: the forging die is of an integrated structure.

Technical Field

The invention relates to the technical field of automobile part die machining, in particular to a method for machining a forging die of a radial forging machine by applying a machining jig.

Background

With the requirements of energy conservation and emission reduction in the automobile industry, the substitution of a hollow shaft for a solid shaft is inevitably a trend. Radial forging is one of the common methods for machining parts having a tubular internal shape. The machining of the hollow shaft involves radial forging. The key to radial forging is the forging die. The forging die is a tool capable of forming a blank into a die forging, the forging die is used in the forging process, and raw materials generate plastic deformation in the forging die under the action of external force, so that the required shape and size are obtained.

Forging generally comprises multiple steps of forming and complex structure, metal forging forming belongs to volume forming, one-step forming is difficult to realize, and multiple deformation is needed, so that one set of forging die is often formed by more than one die, and a complete die consists of four identical dies. In addition, because of the dynamics is big when radial forging machine forges, damage to forging the mould is big, and the life-span of forging the mould is low, and moreover, because of the difference of different products, it is also different to correspond the forging mould, and when the product shape is complicated, the quantity, the processing degree of difficulty, the process time that correspond the forging mould will increase, can appear not following the frequency of use of mould, and then influence the output.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a method for machining a forging die of a radial forging machine by using a machining jig, which is convenient for machining forging dies with different sizes, reduces the machining difficulty and improves the machining efficiency.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a radial forging machine forges processing tool of mould, the forging mould includes installation department and forging portion, be equipped with at least one clamping hole on the installation department, the tail end of installation department is equipped with at least one locating hole, the axis perpendicular to in clamping hole the axis of locating hole.

The processing jig comprises a shell, a gasket and a base; the shell is in a hollow cylindrical shape, a plurality of mounting groove positions for mounting the forging die are arranged on the inner wall of the shell, the mounting groove positions extend along the axial direction of the shell, and the structures of the mounting groove positions are matched with those of the mounting part of the forging die; a plurality of first assembling holes which penetrate through the shell along the radial direction are formed in the mounting groove position; the gasket is arranged in the mounting groove position, the structure of the gasket is matched with that of the mounting groove position, a plurality of second assembling holes are formed in the gasket, and the structures of the second assembling holes are matched with those of the first assembling holes and the positioning holes; the base is detachably connected to the tail end of the shell and is in a circular ring shape, a plurality of die connecting holes are formed in the base, and the structures of the die connecting holes are matched with those of the positioning holes.

Preferably, a base mounting groove is formed in the tail end of the shell, a plurality of base connecting holes are formed in the base mounting groove, and the central axis of each base connecting hole is parallel to the central axis of the shell; the base is provided with a plurality of fixing holes, the structures of the fixing holes are matched with the structures of the base connecting holes, and the base is detachably fixed in the base mounting groove through fastening screws.

Preferably, the middle part of the base is provided with a central hole, the plurality of die connecting holes are uniformly distributed along the circumferential direction of the central hole, and the plurality of fixing holes are uniformly distributed along the circumferential direction of the central hole.

Preferably, the mounting portion of the forging die has a taper, and the thickness of the mounting portion gradually decreases from the top to the bottom along the length direction of the forging die.

Preferably, the bottom of the installation slot has a taper, and the taper is the same as that of the installation part of the forging die.

Preferably, the number of the installation slot positions is four, the four installation slot positions are uniformly distributed along the circumferential direction of the inner wall of the shell, and the gasket is arranged in each installation slot position.

Preferably, the shim has a plurality of thickness specifications.

Preferably, the forging die is of a unitary structure.

The invention also provides a method for processing the forging die of the radial forging machine by applying the processing jig, which comprises the following steps:

step S1: clamping: placing the gasket with the first thickness in the corresponding mounting groove positions, placing a plurality of forging dies to be processed in the corresponding mounting groove positions, penetrating a first screw through a die connecting hole in the base and a positioning hole in the tail end of the mounting part of the forging die, and screwing the first screw tightly to realize the locking of the tail end of the forging die; the second screw penetrates through the first assembling hole in the shell, the second assembling holes in the corresponding gaskets and the clamping holes in the forging die mounting part in sequence, the second screw is screwed, the forging parts of the plurality of forging dies are attached tightly, and the mounting part is locked through the second screw.

Step S2: processing a central arc: and integrally fixing the machining jig after clamping the forging die on a numerical control lathe, and turning by using the numerical control lathe to machine the central arc of the forging part of the forging die.

Step S3: disassembling: and (4) integrally detaching the processing jig from the numerical control machine tool, loosening the second screw and the first screw, and taking out the forging die behind the circular arc of the processing center.

Step S4: secondary clamping: placing the gasket with the second thickness in the corresponding mounting groove position, placing a plurality of forging dies with the arc-shaped center into the corresponding mounting groove positions, penetrating a first screw through a die connecting hole in the base and a positioning hole at the tail end of the mounting part of the forging die, and screwing the first screw tightly to realize tail end locking of the forging die; the second screw penetrates through the first assembling hole in the shell, the second assembling holes in the corresponding gaskets and the clamping holes in the forging die mounting part in sequence, the second screw is screwed, the forging parts of the plurality of forging dies are attached tightly, and the mounting part is locked through the second screw.

Step S5: processing the outer side great arc: and integrally fixing the machining jig after clamping the forging die on a numerical control lathe, and turning by using the numerical control lathe to machine the outer side great arc of the forging part of the forging die.

Step S6: disassembling: and (4) integrally detaching the processing jig from the numerical control machine tool, loosening the second screw and the first screw, and taking out the processed forging die.

Preferably, the second thickness is less than the first thickness.

Compared with the prior art, the invention has the beneficial effects that: the processing jig can simultaneously clamp a plurality of forging dies for turning, reduces the processing difficulty, improves the processing efficiency, can ensure the size consistency of the plurality of dies and ensures the forging precision; the mounting groove position of the shell is matched with the taper of the forging die, the clamping operation is quick and convenient, the problem of the taper of the forging die does not need to be considered during clamping and processing, and the processing difficulty is reduced; the gaskets have different thickness specifications, the turning of arcs at different parts of the forging die is realized by replacing the gaskets with different thicknesses, and the operation is convenient; the processing jig can be used for clamping forging dies of different models to perform turning processing, is simple in structure, can effectively save space, reduces manufacturing cost, and is high in universality.

Drawings

FIG. 1 is a front view of a machining jig of a forging die of a radial forging machine according to the present invention;

FIG. 2 is a side view of a tooling fixture for a forging die of a radial forging machine according to the present invention;

FIG. 3 is a front view of a split structure of a machining jig of a forging die of a radial forging machine according to the present invention;

FIG. 4 is a side view of the split structure of the processing jig of the forging die of the radial forging machine of the present invention;

FIG. 5 is a front view of a forging die to be machined;

FIG. 6 is a side view of the forging die to be machined;

FIG. 7 is a front view of the processing fixture of the present invention after clamping the forging die;

FIG. 8 is a side view of the processing tool of the present invention after clamping the forging die;

fig. 9 is a front view of the forging die after completion of the process.

In the figure, 100-machining jig, 10-housing, 11-mounting groove position, 12-first assembling hole, 13-base mounting groove, 14-base connecting hole, 20-gasket, 21-second assembling hole, 30-base, 31-die connecting hole, 32-fixing hole, 33-center hole, 200-forging die, 210-mounting portion, 211-mounting hole, 212-positioning hole 220-forging portion, 221-center circular arc forging surface, 222-outer side large circular arc forging surface.

Detailed Description

In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.

Referring to fig. 5 and 6 in combination, fig. 5 is a front view of a forging die to be processed; FIG. 6 is a side view of the forging die to be machined; the forging die 200 to be processed is of an integral structure and comprises an installation part 210 and a forging part 220, wherein at least one clamping hole 211 is formed in the installation part 210, at least one positioning hole 212 is formed in the tail end of the installation part 210, and the central axis of the clamping hole 211 is perpendicular to the central axis of the positioning hole 212. The mounting portion 210 of the forging die 200 has a taper, and the thickness of the mounting portion 210 gradually decreases from the top to the bottom along the length direction of the forging die 200.

In an embodiment of the present invention, the mounting portion 210 of the forging die 200 is provided with two clamping holes 211 respectively located at the head and tail ends of the mounting portion 210, and in other embodiments, the number of the clamping holes 211 may be reasonably set according to actual requirements, which is not limited in the present invention.

In order to meet the processing requirements of the forging die, the invention provides the processing jig of the forging die of the radial forging machine, which controls the production cost, improves the production efficiency and reduces the processing difficulty. Referring to fig. 1 to fig. 4, fig. 1 is a front view of a processing jig of a forging die of a radial forging machine according to the present invention; FIG. 2 is a side view of a tooling fixture for a forging die of a radial forging machine according to the present invention; FIG. 3 is a front view of a split structure of a machining jig of a forging die of a radial forging machine according to the present invention; FIG. 4 is a side view of the split structure of the processing jig of the forging die of the radial forging machine of the present invention; the processing jig 100 of the forging die of the radial forging machine comprises a shell 10, a gasket 20 and a base 30; the shell 10 is a cylinder with a hollow interior, the inner wall of the shell 10 is provided with a plurality of mounting slots 11 for mounting the forging die 200, the mounting slots 11 extend along the axial direction of the shell 10, and the structure of the mounting slots 11 is matched with that of the mounting part 210 of the forging die; preferably, the bottom of the mounting groove 11 has a taper, and the taper is the same as that of the mounting portion 210 of the forging die. During clamping, the mounting portion 210 of the forging die is located in the mounting groove 11, the taper degrees of the mounting portion and the taper degrees of the mounting groove are matched, and clamping difficulty and machining difficulty are reduced.

A plurality of first assembling holes 12 which penetrate through the shell 10 along the radial direction are arranged in the mounting groove position 11; in the installation trench 11 was located to gasket 20, gasket 20's structure and installation trench 11's structure phase-match were equipped with a plurality of second pilot holes 21 on gasket 20, the structure of second pilot hole 21 and the structure phase-match of first pilot hole 12, locating hole 212. In use, the gasket 20 is placed in the mounting slot 11, the plurality of forging dies 200 are placed in the corresponding mounting slots 11, the gasket 20 is located between the housing 10 and the forging dies 200, the forging portions 220 of the plurality of forging dies are attached, the first assembling holes 12 and the second assembling holes 21 correspond to the positioning holes 212, and the forging dies 200, the housing 10 and the gasket 20 can be locked and fixed through screws and other parts.

In the preferred embodiment of the present invention, the shim 20 has various thickness specifications, and the clamping position of the forging die 200 can be changed by replacing shims 20 with different thicknesses, so as to achieve turning of arcs at different positions of the forging die.

The base 30 is detachably connected to the tail end of the housing 10, and specifically, please refer to fig. 2 and fig. 4 in combination, a base mounting groove 13 is formed at the tail end of the housing 10, a plurality of base connecting holes 14 are formed in the base mounting groove 13, and a central axis of each base connecting hole 14 is parallel to a central axis of the housing 10; the base 30 is the ring form, and the middle part of base 30 is equipped with centre bore 33, is equipped with a plurality of fixed orificess 32 on the base 30, and a plurality of fixed orificess 32 evenly arrange along the circumference of centre bore 33, and the structure of fixed orificess 32 and the structure phase-match of base connecting hole 14, base 30 pass through fastening screw detachably to be fixed in base mounting groove 13, wherein, fastening screw's structure and fixed orifices 32, the structure phase-match of base connecting hole 14. The base 30 is provided with a plurality of die connecting holes 31, the die connecting holes 31 are uniformly distributed along the circumferential direction of the central hole 33, and the structure of the die connecting holes 31 is matched with that of the positioning holes 212. When the forging die 200 is arranged in the mounting groove 11, the positioning hole 212 at the tail of the forging die 200 corresponds to the die connecting hole 31 on the base 30, and the tail of the forging die 200 can be locked and fixed with the base 30 through fasteners such as screws, so that the clamping stability is improved, and the turning processing is facilitated. The fixing hole 32 on the base 30 is matched with the base connecting hole 14 at the tail end of the shell 10, the base 30 is connected with the shell 10 through a fastening screw, and the base 30 is convenient to replace after being detached after being worn after long-term use, so that the whole scrapping is avoided, and the production cost is saved.

In a preferred embodiment of the present invention, the number of the mounting slots 11, the number of the base connection holes 14, the number of the fixing holes 32, and the number of the die connection holes 31 are four, the four mounting slots 11 are uniformly arranged along the circumferential direction of the inner wall of the housing 10, a gasket 20 is disposed in each mounting slot 11, the four fixing holes 32 are uniformly arranged along the circumferential direction of the central hole 33, the four die connection holes 31 are uniformly arranged along the circumferential direction of the central hole 33, and each die connection hole 31 corresponds to the middle portion of the tail end of the mounting slot 11. This processing tool of preferred embodiment can four forging moulds of clamping simultaneously, carries out lathe work simultaneously, has guaranteed the machining dimension uniformity, has improved machining efficiency, and four forging moulds after the processing constitute a pair and forge the mould subassembly, install in radial forging machine, and the assembly precision is high, radially forges the shaft member under the exogenic action, forges effectually.

Referring to fig. 1 to 8, fig. 7 is a front view of the processing jig of the present invention after clamping the forging die; FIG. 8 is a side view of the processing tool of the present invention after clamping the forging die; the method for processing the forging die 200 by using the processing jig 100 for the forging die of the radial forging machine comprises the following operation steps:

step S1: clamping: placing the gasket 20 with the first thickness into the corresponding mounting groove 11, placing a plurality of forging dies 200 to be processed into the corresponding mounting groove 11, penetrating a first screw through the die connecting hole 31 on the base 30 and the positioning hole 212 at the tail end of the forging die mounting part 210, and screwing the first screw to lock the tail end of the forging die 200; the second screws are sequentially passed through the first assembling holes 12 on the housing 10, the second assembling holes 21 on the corresponding gaskets 20 and the clamping holes 211 on the forging die mounting portions 210, the second screws are screwed, the forging portions 220 of the plurality of forging dies 200 are attached tightly, and the mounting portions 210 are locked by the second screws. The structure of the first screw is matched with the structures of the die connecting hole 31 and the positioning hole 212, and the structure of the second screw is matched with the structures of the first assembling hole 12, the second assembling hole 21 and the clamping hole 211.

Step S2: processing a central arc: the machining jig 100 after clamping the forging die 200 is integrally fixed to a numerically controlled lathe, and the central arc of the forging portion 220 of the forging die is machined by the numerically controlled lathe.

Step S3: disassembling: and (4) integrally detaching the processing jig 100 from the numerical control machine tool, loosening the second screw and the first screw, and taking out the forging die after the circular arc of the processing center.

Step S4: secondary clamping: placing the gasket 20 with the second thickness into the corresponding mounting groove 11, placing the plurality of forging dies 200 with the arc-shaped machining center into the corresponding mounting groove 11, penetrating a first screw through the die connecting hole 31 on the base 30 and the positioning hole 212 at the tail end of the forging die mounting part 210, and screwing the first screw to lock the tail end of the forging die 200; the second screws sequentially pass through the first assembling holes 12 on the shell 10, the second assembling holes 21 on the corresponding gaskets 20 and the clamping holes 211 on the forging die mounting parts 210, the second screws are screwed, the forging parts 220 of the plurality of forging dies are attached tightly, and the mounting parts 210 are locked through the second screws. Wherein, the second thickness is less than the first thickness, and after the thickness of gasket 20 reduced, the opening of constituteing between the forging portion 220 of a plurality of forging mould will grow, be convenient for in the follow-up technology to the lathe work of the outside orthodrome of forging portion 220 of forging mould.

Step S5: processing the outer side great arc: the processing jig 100 after clamping the forging die 200 is integrally fixed to a numerically controlled lathe, and the outer side great arc of the forging portion 220 of the forging die is turned by the numerically controlled lathe.

Step S6: disassembling: and (4) detaching the whole machining jig 100 from the numerical control machine tool, loosening the second screw and the first screw, and taking out the machined forging die 200.

In the preferred embodiment of the present invention, four mounting slots 11 are provided in the housing 10 of the processing jig 100, so that the four forging dies 200 can be simultaneously clamped and turned, and the processing consistency and the assembly precision are good.

Referring to fig. 9, fig. 9 is a front view of the forging die after the process is completed. The forging portion 220 of the machined forging die 200 has a central arc forging surface 221 and outer large arc forging surfaces 222 located on both sides of the central arc forging surface 221, the radian radius of the central arc forging surface 221 is smaller than that of the outer large arc forging surfaces 222, and the central angle corresponding to the central arc forging surface 221 is smaller than that of the outer large arc forging surfaces 222. When the four forging dies 200 are mounted on the radial forging machine, the central arc forging surface 221 is used for plastically deforming the shaft member to obtain a desired shape and size, and the outer large arc forging surface 222 is used for reducing resistance during forging and improving forging efficiency.

In summary, the invention provides a method for processing a forging die of a radial forging machine by using a processing jig, the processing jig can simultaneously clamp a plurality of forging dies for turning, the processing difficulty is reduced, the processing efficiency is improved, the dimensional consistency of the plurality of forging dies can be ensured, and the forging precision is ensured; the mounting groove position of the shell is matched with the taper of the forging die, the clamping operation is quick and convenient, the problem of the taper of the forging die does not need to be considered during clamping and processing, and the processing difficulty is reduced; the gaskets have different thickness specifications, the turning of arcs at different parts of the forging die is realized by replacing the gaskets with different thicknesses, and the operation is convenient; the processing jig can be used for clamping forging dies of different models to perform turning processing, is simple in structure, can effectively save space, reduces manufacturing cost, and is high in universality.

The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.