CN212216804U - High-precision correction die system - Google Patents
High-precision correction die system Download PDFInfo
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- CN212216804U CN212216804U CN202020322238.7U CN202020322238U CN212216804U CN 212216804 U CN212216804 U CN 212216804U CN 202020322238 U CN202020322238 U CN 202020322238U CN 212216804 U CN212216804 U CN 212216804U
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- correction die
- ejector rod
- die
- hole
- correction
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Abstract
The utility model discloses a high-precision correction die system, which is used for correcting a workpiece and comprises a first correction die and a second correction die which are matched with each other to form a cavity for accommodating the workpiece; at least one of the first correction die and the second correction die is provided with a through hole and an ejector rod capable of moving in the through hole in an inserting manner, the through hole penetrates through the first correction die and/or the second correction die, one end of the through hole is communicated with the cavity, and the ejector rod can eject the workpiece when being inserted into the cavity; the through hole is a stepped hole and is internally provided with an elastic reset device for resetting the ejector rod. According to the high-precision correction die system, the design that the side face of the cavity of the correction die is in clearance fit with the workpiece is not adopted structurally, and the ejector rod can penetrate through the through hole to be inserted into the cavity by arranging the through hole communicated with the cavity in the correction die, so that the workpiece is ejected out.
Description
Technical Field
The utility model relates to a mould field is rectified to the work piece, especially relates to a mould system is rectified to high accuracy.
Background
Workpieces such as forgings and castings may be deformed such as bent or twisted due to various reasons in various production processes and transportation processes, and therefore, the workpieces need to be corrected by using a correction die. The use procedure of the forging correction die can be thermal correction after forging. In order to facilitate the smooth taking out of the workpiece after the correction procedure is finished, the side face of the cavity of the correction die and the workpiece can adopt a clearance fit design, namely the workpiece is placed into the cavity and has a certain clearance with the side face of the cavity. During use, the structural design has the following defects: when the correcting die is pressed against the workpiece, the workpiece is prone to be expanded or deformed improperly, and the deformation is filled in the gap, so that the workpiece is unqualified. For the workpiece with high requirement on product precision, the product percent of pass is low; for example, a 90-degree crankshaft, a 120-degree crankshaft, etc. may have a non-standard size, which may result in a large influence on the dynamic balance.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the problem that above-mentioned exists, provide a mould system is rectified to high accuracy, structurally do not adopt the design of rectifying mould die cavity side and work piece clearance fit, through set up the through-hole that communicates to the die cavity in rectifying the mould, can adopt the ejector pin to pass the through-hole and insert the die cavity to it is ejecting with the work piece.
The utility model adopts the technical scheme as follows:
a high-precision correction die system for correcting a workpiece comprises a first correction die and a second correction die which are matched with each other to form a cavity for accommodating the workpiece; at least one of the first correction die and the second correction die is provided with a through hole and an ejector rod capable of moving in the through hole in an inserting manner, the through hole penetrates through the first correction die and/or the second correction die, one end of the through hole is communicated with the cavity, and the ejector rod can eject the workpiece when being inserted into the cavity; the through hole is a stepped hole and is internally provided with an elastic reset device for resetting the ejector rod.
In some embodiments, the elastic resetting device comprises a shaft shoulder arranged on the ejector rod and a spring sleeved on the ejector rod, and two ends of the spring respectively abut against a step surface in the through hole and the shaft shoulder on the ejector rod; and the outer side of the first correction die and/or the second correction die is fixedly connected with an ejector rod pressing plate used for limiting the shaft shoulder in the through hole, and the ejector rod penetrates through the ejector rod pressing plate and is connected with a power mechanism.
The first correction die and/or the second correction die are/is connected with a die bottom plate, and the ejector rod is connected with the power mechanism through an ejector rod ejection plate. The die bottom plate is provided with a groove matched with the ejector rod ejection plate, the ejector rod ejection plate can slide in the groove, and the groove can limit the sliding direction of the ejector rod ejection plate.
The die bottom plate and the ejector rod pressing plate can be arranged into an integrated structure or a split structure; when a split structure is adopted, the die base plate and the ejector rod pressing plate can be respectively connected to the corresponding first correction die or second correction die, or the die base plate can be connected to the corresponding first correction die or second correction die after the ejector rod pressing plate is connected with the die base plate.
The first correction die and the second correction die are installed in a vertically matched mode, and the upper wall face of the first correction die and the lower wall face of the second correction die are provided with positioning pin holes and/or threaded holes for positioning and/or threaded connection between the die bottom plate and the ejector rod pressing plate.
In other embodiments, the axial direction of the through hole near-cavity end is perpendicular to the matching surfaces of the first correction die and the second correction die. The axial direction of the end of the through hole close to the cavity is vertical to the wall surface of the cavity. By the arrangement, the workpiece can be ejected out of the cavity more smoothly.
In other embodiments, a plurality of pairs of cylindrical holes are correspondingly arranged on the first correction die and the second correction die, and guide columns are inserted into at least one pair of cylindrical holes to limit the direction of relative movement of the first correction die and the second correction die along the guide columns. The cylindrical hole is provided with a boss at the periphery.
The matching surfaces of the first correction die and the second correction die are a single plane or are formed by combining a plurality of planes. According to some embodiments of the invention, the mating surface is provided as a combination of multiple planes to accommodate irregular cavity shapes.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the design that the side face of a cavity of the correcting die is in clearance fit with a workpiece is not adopted in the structure, so that the problem that the workpiece is not required in size due to improper expansion or deformation of the workpiece in the correcting process can be effectively avoided, and the size precision of the workpiece is greatly improved;
2. through set up the through-hole that communicates to the die cavity in proofreading the mould, adopt the ejector pin to pass the through-hole and ejecting the work piece, have advantages such as device simple structure, convenient operation.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of a first partial structure of the present invention;
fig. 3 is a second partial structural schematic diagram of the present invention;
FIG. 4 is a half-sectional view of the structure shown in FIG. 3;
fig. 5 is a schematic view of the overall structure of the first correction die;
FIG. 6 is a schematic view of the overall structure of a second correction mode;
FIG. 7 is a schematic view of a workpiece.
Description of reference numerals:
1-a first correction die, 2-a second correction die, 21-a columnar hole, 22-a guide column, 23-a boss, 3-a die bottom plate, 4-an ejector rod ejector plate, 5-an ejector rod pressing plate, 6-a positioning pin, 7-an ejector rod, 71-a shaft shoulder, 8-a through hole and 9-a workpiece.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1-7, a high precision correcting die system for correcting a workpiece 9 includes a first correcting die 1 and a second correcting die 2 disposed in an up-down opposite relationship and cooperating to form a cavity for receiving the workpiece 9. The configuration of the cavity matches that of the workpiece, and the illustration in fig. 7 is merely one exemplary configuration of a plurality of workpieces to which the present invention is applicable. First correction mould 1 and second correction mould 2 are the cuboid, and all are connected with mould bottom plate 3. The first correction mode 1 and the second correction mode 2 have some symmetrical arrangements, and the second correction mode 2 will be further described as an example.
The second correction die 2 is provided with a through hole 8 and an ejector rod 7 which can be inserted and moved in the through hole 8. The through hole 8 penetrates through the second correcting die 2, the upper end of the through hole is communicated with the cavity, and the ejector rod 7 can eject the workpiece 9 out of the cavity when being inserted into the cavity. The axial direction of the cavity-proximal end of the through-hole 8 is perpendicular to the mating faces of the first correction die 1 and the second correction die 2. The axial direction of the cavity-near end of the through hole 8 is perpendicular to the wall surface of the cavity. By such an arrangement, the workpiece 9 can be ejected from the cavity more smoothly.
The through hole 8 is a stepped hole and is internally provided with an elastic reset device for resetting the ejector rod 7. The elastic resetting device comprises a shaft shoulder 71 arranged on the ejector rod 7 and a spring (not shown in the figure) sleeved on the ejector rod 7, and two ends of the spring respectively abut against a step surface in the through hole 8 and the shaft shoulder 71 on the ejector rod 7. The outer side of the second correcting die 2 is fixedly connected with a mandril pressing plate 5 used for limiting the shaft shoulder 71 in the through hole 8, and the mandril 7 penetrates through the mandril pressing plate 5 and is connected with a power mechanism (not shown in the figure). The number of the push rods 7 and the elastic resetting devices thereof can be less than that of the through holes 8.
The second correction die 2 is also connected with a die bottom plate 3, and an ejector rod 7 is connected with a power mechanism through an ejector rod ejection plate 4. Have on the mould bottom plate 3 with 4 assorted recesses of ejector pin liftout plate, ejector pin liftout plate 4 can slide in the recess, the recess can realize the injecing to 4 slip directions of ejector pin liftout plate, can effectively solve following problem: when the connection positions of the ejector rod ejection plate 4, the ejector rod 7 and the power mechanism are improper, the direction of the ejector rod 7 under the thrust of the power mechanism does not correspond to the axial direction of the through hole 8, and the ejector rod 7 is damaged.
The mould bottom plate 3 and the ejector rod pressing plate 5 can be arranged into an integrated structure or a split structure; when adopting split type structure, can be connected to second correction mould 2 with mould bottom plate 3 and ejector pin clamp plate 5 respectively on, also can be connected mould bottom plate 3 to second correction mould 2 with ejector pin clamp plate 5 and mould bottom plate 3 back again. The lower wall surface of the second correcting die 2 is provided with a positioning pin hole for installing a positioning pin 6, and the positioning pin 6 is used for positioning with the die bottom plate 3. The lower wall surface of the second correcting die 2 is also provided with a threaded hole for threaded connection between the die bottom plate 3 and the ejector rod pressing plate 5.
The first correction die 1 and the second correction die 2 are similarly provided with the through hole 8, the ejector rod 7, the elastic reset device, the ejector rod ejection plate 4, the power mechanism and the like, and the description is omitted.
The first correction die 1 and the second correction die 2 are correspondingly provided with a pair of columnar holes 21 and a guide post 22 corresponding to the pair of columnar holes 21, and two ends of the guide post 22 are respectively inserted into the pair of columnar holes 21 so as to limit the direction of relative movement of the first correction die 1 and the second correction die 2 along the guide post 22. The columnar holes 21 and the guide posts 22 associated therewith may be provided in plural sets on the mating surfaces of the first correction die 1 and the second correction die 2, and the number of the columnar holes 21 may be larger than the number of the guide posts 22. The cylindrical hole 21 is also provided with a boss 23 around the circumference.
The mating surfaces of the first and second correction dies 1 and 2 may be a single plane or a combination of planes. In the present embodiment, the mating surfaces of the first correction die 1 and the second correction die 2 are provided as a combination of a plurality of planes to accommodate the irregular cavity shape, and the volume, weight, and material consumption of the first correction die 1 and the second correction die 2 can be effectively reduced.
The present invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.
Claims (10)
1. A high-precision correction die system is used for correcting a workpiece and is characterized in that: the device comprises a first correction die and a second correction die which are matched with each other to form a cavity for accommodating the workpiece; at least one of the first correction die and the second correction die is provided with a through hole and an ejector rod capable of moving in the through hole in an inserting manner, the through hole penetrates through the first correction die and/or the second correction die, one end of the through hole is communicated with the cavity, and the ejector rod can eject the workpiece when being inserted into the cavity; the through hole is a stepped hole and is internally provided with an elastic reset device for resetting the ejector rod.
2. The high precision corrective mold system of claim 1, wherein: the elastic reset device comprises a shaft shoulder arranged on the ejector rod and a spring sleeved on the ejector rod, and two ends of the spring respectively abut against the step surface in the through hole and the shaft shoulder on the ejector rod; and the outer side of the first correction die and/or the second correction die is fixedly connected with an ejector rod pressing plate used for limiting the shaft shoulder in the through hole, and the ejector rod penetrates through the ejector rod pressing plate and is connected with a power mechanism.
3. The high precision corrective mold system of claim 2, wherein: the first correction die and/or the second correction die are/is connected with a die bottom plate, the ejector rod is connected with the power mechanism through an ejector rod ejecting plate, and a groove matched with the ejector rod ejecting plate is formed in the die bottom plate.
4. The high precision corrective mold system of claim 3, wherein: the die bottom plate and the ejector rod pressing plate are of an integrated structure.
5. The high precision corrective mold system of claim 3, wherein: the first correction die and the second correction die are installed in a vertically matched mode, and the upper wall face of the first correction die and the lower wall face of the second correction die are provided with positioning pin holes and/or threaded holes.
6. The high precision corrective mold system according to any of claims 1-5, characterized in that: the axial direction of the through hole near the cavity end is perpendicular to the matching surfaces of the first correction die and the second correction die.
7. The high precision corrective mold system according to any of claims 1-5, characterized in that: the axial direction of the end of the through hole close to the cavity is vertical to the wall surface of the cavity.
8. The high precision corrective mold system according to any of claims 1-5, characterized in that: and a plurality of pairs of columnar holes are correspondingly arranged on the first correction die and the second correction die, and guide columns are inserted into at least one pair of columnar holes so as to limit the direction of relative movement of the first correction die and the second correction die to be along the guide columns.
9. The high precision corrective mold system of claim 8, wherein: the cylindrical hole is provided with a boss at the periphery.
10. The high precision corrective mold system according to any of claims 1-5, characterized in that: the matching surfaces of the first correction die and the second correction die are a single plane or are formed by combining a plurality of planes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020322238.7U CN212216804U (en) | 2020-03-16 | 2020-03-16 | High-precision correction die system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020322238.7U CN212216804U (en) | 2020-03-16 | 2020-03-16 | High-precision correction die system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212216804U true CN212216804U (en) | 2020-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020322238.7U Active CN212216804U (en) | 2020-03-16 | 2020-03-16 | High-precision correction die system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212216804U (en) |
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2020
- 2020-03-16 CN CN202020322238.7U patent/CN212216804U/en active Active
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