Adjustable forging die for upsetting shafts

Abstract

The utility model discloses an adjustable forging die for upsetting shafts, which comprises a bottom plate, a first vertical plate, a second vertical plate and a third vertical plate are fixed at the top of the bottom plate, and an accommodating space for an upsetting module is formed between the first vertical plate and the second vertical plate; the side, away from the containing space of the upsetting module, of the second vertical plate is connected with a connector driven by a first locking cylinder so that the second vertical plate can not move in the horizontal direction when the upsetting module conducts upsetting. The bottom of the side, deviating from the containing space of the upsetting module, of the second vertical plate is further connected with a second locking cylinder so as to prevent the second vertical plate from rotating anticlockwise in the upsetting process. The utility model has the beneficial effects that the connector and the first locking cylinder are arranged on the back side of the second vertical plate, and the second locking cylinder is arranged on one side, close to the connector, of the bottom of the second vertical plate, so that the displacement and rotation of the second vertical plate in the horizontal direction are further limited.

Description

Technical Field

[0001] The utility model belongs to the technical field of shaft forging and upsetting, in particular to an adjustable forging die for shaft upsetting. Background Art

[0002] When upsetting shafts, an upsetting die is needed, especially when upsetting tapered shafts with variable diameters, a split die is often used. Different shaft upsetting requires the use of corresponding die, which results in a wide variety of upsetting dies. When replacing the die during production, the operation is inconvenient. At the same time, since the limiting fixtures of the split die are not unified, it is inconvenient to replace the die. The inventors found that in addition to the inconvenience of operation, the existing limiting fixtures are often used in the upsetting operation of the split die, and the shaft diameter is often too large and the length is too small, resulting in a very high scrap rate. Summary of the invention

[0003] The purpose of the embodiment of the utility model is to provide an adjustable forging die for upsetting shafts, aiming to solve the problem that the limiting fixtures of the split dies in the prior art are not unified, resulting in inconvenience in operation when replacing the dies. The inventors found that in addition to the inconvenience in operation, the existing limiting fixtures often cause the shaft diameter to be too large and the length to be too small during the upsetting operation of the split dies, resulting in a technical problem of an extremely high scrap rate.

[0004] The utility model embodiment is achieved in this way:

[0005] An adjustable forging die for upsetting shafts, the forging die comprising a base plate, a first vertical plate, a second vertical plate and a third vertical plate fixed on the top of the base plate, a housing space for an upsetting module being formed between the first vertical plate and the second vertical plate; a connector driven by a first locking cylinder is connected to a side of the second vertical plate away from the housing space for the upsetting module to prevent the second vertical plate from being displaced in the horizontal direction during upsetting of the upsetting module; a second locking cylinder is also connected to the bottom of a side of the second vertical plate away from the housing space for the upsetting module to prevent the second vertical plate from rotating counterclockwise during upsetting.

[0006] Furthermore, the first vertical plate, the second vertical plate and the third vertical plate are all rectangular cuboids, and the four top corners of the first vertical plate, the second vertical plate and the third vertical plate are connected by guide columns and locked by fixing nuts.

[0007] Furthermore, the connector includes two symmetrically arranged straight-shaped first connecting rods, two symmetrically arranged straight-shaped second connecting rods, two symmetrically arranged third connecting rods, and four symmetrically arranged fifth connecting rods. One end of the two first connecting rods is symmetrically hinged to the fourth connecting rod fixed to the end of the piston rod of the first locking cylinder, the two first connecting rods are hinged to the end of the second connecting rod, the other end of the second connecting rod is connected to the fifth connecting rod, and the fifth connecting rod is divided into two groups, each group includes two fifth connecting rods, one group is symmetrically fixed at the top and bottom of the third vertical plate, and the other group is symmetrically fixed at the top and bottom of the first vertical plate; the middle part of the second connecting rod is hinged to the third connecting rod, and the other end of the third connecting rod is connected to the fifth connecting rod fixed to the top and bottom of the first vertical plate.

[0008] Furthermore, the middle portion of the fourth connecting rod is threadedly connected to the end of the piston rod of the locking cylinder through a threaded hole, and the end of the piston rod of the locking cylinder is provided with a locking nut for adjusting and locking the position of the fourth connecting rod at the end of the piston rod.

[0009] Furthermore, the connector includes a connecting shaft connecting the first locking cylinder and the first vertical plate.

[0010] Furthermore, the first locking cylinder and the second locking cylinder are both oil cylinders or air cylinders.

[0011] Furthermore, a cushion block is provided at the bottom of the accommodating space to adjust the positions of upsetting modules of different heights in the forging die.

[0012] The positive effect of the utility model is that by setting up a connector and a first locking cylinder on the back side of the second vertical plate, and setting up a second locking cylinder on the bottom side of the second vertical plate close to the connector, further restriction on the horizontal displacement and rotation of the second vertical plate is achieved, which can further improve the displacement of the upsetting module during upsetting, resulting in the shape of the upsetting part deviating from the design requirements, and provides a technical means for the refinement of the upsetting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of an adjustable forging die for shaft upsetting of the utility model;

[0014] Figure 2 yes Figure 1 The front view of an adjustable forging die for upsetting shafts of the utility model is shown in FIG.

[0015] Figure 3 yes Figure 2 A cross-sectional view of an adjustable forging die for upsetting shafts of the utility model is shown in FIG.

[0016] Figure 4 yes Figure 1A three-dimensional structural schematic diagram of a second embodiment of an adjustable forging die for shaft upsetting of the utility model is shown in FIG.

[0017] Figure 5 yes Figure 4 The front view of an adjustable forging die for upsetting shafts of the utility model is shown in FIG.

[0018] Legend: 1—base plate, 2—first vertical plate, 3—second vertical plate, 4—end plate, 6—fixing nut, 7—limiting protrusion, 8—upsetting module, 9—guide column, 10—connector, 1001—connecting shaft, 1002—first connecting rod, 1003—second connecting rod, 1004—third connecting rod, 1005—locking nut, 1006—fourth connecting rod, 1007—fifth connecting rod, 1008—sixth connecting rod, 1009—spacer, 11—first locking cylinder, 12—third vertical plate, 13—second locking cylinder. DETAILED DESCRIPTION

[0019] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments:

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] like Figures 1 to 3 As shown in the figure, it is a structural diagram of an adjustable forging die for shaft upsetting provided by an embodiment of the utility model, comprising a bottom plate 1, a first vertical plate 2, a second vertical plate 3 and a third vertical plate 12 are fixed on the top of the bottom plate 1, and a receiving space for the upsetting module 8 is formed between the first vertical plate 2 and the second vertical plate 3; a connector 10 driven by a first locking cylinder 11 is connected to the side of the second vertical plate 3 away from the receiving space of the upsetting module 8, so as to keep the second vertical plate 3 from being moved during the upsetting of the upsetting module Figure 1The second vertical plate 3 away from the bottom of the upsetting module 8 of the accommodating space on one side is also connected to the second locking cylinder 13 to limit the second vertical plate 3 in the upsetting, will not occur Figure 1 Counterclockwise rotation from the position shown.

[0023] Preferably, a cushion block 1009 is provided at the bottom of the accommodating space to adjust the positions of upsetting modules of different heights in the forging die.

[0024] In the embodiment of the utility model, by setting up a connector 10 and a first locking cylinder 11 on the back side of the second vertical plate, and setting up a second locking cylinder on the bottom side of the second vertical plate close to the connector 10, further restriction on the horizontal displacement and rotation of the second vertical plate 10 is achieved, which can further improve the displacement of the upsetting module during upsetting, resulting in the shape of the upsetting part deviating from the design requirements, and provide a technical means for the refinement of the upsetting process.

[0025] Specifically, an adjustable forging die for upsetting a shaft includes a bottom plate 1, a first vertical plate 2, a second vertical plate 3 and a third vertical plate 12 are fixed on the top of the bottom plate 1, and a receiving space for an upsetting module 8 is formed between the first vertical plate 2 and the second vertical plate 3; a connector 10 driven by a first locking cylinder 11 is connected to the side of the second vertical plate 3 away from the receiving space of the upsetting module 8, so as to keep the second vertical plate 3 from being deformed during upsetting. Figure 1 The second vertical plate 3 is also connected to the second locking cylinder 13 on the side close to the connector on the bottom of the side away from the accommodating space of the upsetting module 8 to limit the second vertical plate 3 from being upset. Figure 1 Counterclockwise rotation of the position shown;

[0026] The first vertical plate 2, the second vertical plate 3 and the third vertical plate 12 are all rectangular cuboids, and the four vertices of the first vertical plate 2, the second vertical plate 3 and the third vertical plate 12 are connected by guide columns 9 and locked by fixing nuts 6;

[0027] Among them, Figure 2 and Figure 3As shown, the connector 10 includes two symmetrically arranged straight first connecting rods 1002, two symmetrically arranged L-shaped second connecting rods 1003, two symmetrically arranged third connecting rods 1004, and four symmetrically arranged fifth connecting rods 1007, one end of the two first connecting rods 1002 is symmetrically hinged to the fourth connecting rod 1006 fixed to the end of the piston rod of the first locking cylinder 11, the two first connecting rods 1002 are hinged to the end of the second connecting rod 1003, the other end of the second connecting rod 1003 is connected to the fifth connecting rod 1007, and the fifth connecting rod 1007 is divided into two groups, each group includes two fifth connecting rods 1007, one group is symmetrically fixed to the top and bottom of the third vertical plate 12, and the other group is symmetrically fixed to the top and bottom of the first vertical plate 2; the middle part of the second connecting rod 1003 is hinged to the third connecting rod 1004, and the other end of the third connecting rod 1004 is connected to the fifth connecting rod 1007 fixed to the top and bottom of the first vertical plate 2;

[0028] Preferably, the middle portion of the fourth connecting rod 1006 is threadedly connected to the end of the piston rod of the locking cylinder 11 through a threaded hole, and the end of the piston rod of the locking cylinder 11 is provided with a locking nut 1005, which is used to adjust and lock the position of the fourth connecting rod 1006 at the end of the piston rod; through the self-locking characteristics of the connecting rod, the horizontal displacement and rotation of the second vertical plate 10 are further restricted, which can further improve the displacement of the upsetting module during upsetting, resulting in the shape of the upsetting part deviating from the design requirements, and provides a technical means for the refinement of the upsetting process.

[0029] Preferably, the first locking cylinder 11 and the second locking cylinder 13 are both oil cylinders or air cylinders;

[0030] Preferably, the end of the bottom plate 1 is provided with an end 4 for fixing and pressing on the working belt of the forging machine to prevent the entire die from moving.

[0031] Preferably, Figures 4 to 5 As shown, it is a structural diagram of a second embodiment of an adjustable forging die for shaft upsetting. In this embodiment, the connector 10 only includes a connecting shaft 1001, which connects the first locking cylinder 11 with the first vertical plate 2, and further limits the horizontal displacement and rotation of the second vertical plate 10. It can further improve the displacement of the upsetting module during upsetting, resulting in the shape of the upsetting part deviating from the design requirements, and provides a technical means for the refinement of the upsetting process. Compared with the first embodiment, this embodiment has a simple structure. At that time, the first locking cylinder 11 needs to bear the force from the first vertical plate 2 alone, while in the first embodiment, the connector 10 of the connecting rod mechanism and the first locking cylinder 11 bear it together.

[0032] The foregoing has broadly outlined some aspects and features of various embodiments, which should be construed as merely illustrative of various potential applications. Other beneficial results may be obtained by applying the disclosed information in different ways or by combining various aspects of the disclosed embodiments. Other aspects and a more comprehensive understanding may be obtained by reference to the detailed description of the exemplary embodiments in conjunction with the accompanying drawings, within the scope defined by the claims.

[0033] The above embodiments provide a detailed description of the present invention. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions, reductions, and substitutions made by relevant technicians within the essential scope of the present invention also fall within the protection scope of the present invention.

Claims

1. An adjustable forging die for shaft upsetting, characterized in that: The forging die comprises a bottom plate, a first vertical plate, a second vertical plate and a third vertical plate are fixed on the top of the bottom plate, and a receiving space for the upsetting module is formed between the first vertical plate and the second vertical plate; A connector driven by a first locking cylinder is connected to the side of the second vertical plate away from the accommodating space of the upsetting module to prevent the second vertical plate from being displaced horizontally during upsetting of the upsetting module; the bottom of the second vertical plate away from the side of the accommodating space of the upsetting module is also connected to the second locking cylinder to prevent the second vertical plate from rotating counterclockwise during upsetting.

2. The adjustable forging die for shaft upsetting according to claim 1, characterized in that: The first vertical plate, the second vertical plate and the third vertical plate are all rectangular cuboids. The four top corners of the first vertical plate, the second vertical plate and the third vertical plate are connected by guide columns and locked by fixing nuts.

3. The adjustable forging die for shaft upsetting according to claim 2, characterized in that: The connector includes two symmetrically arranged straight-shaped first connecting rods, two symmetrically arranged straight-shaped second connecting rods, two symmetrically arranged third connecting rods, and four symmetrically arranged fifth connecting rods. One end of the two first connecting rods is symmetrically hinged to the fourth connecting rod fixed to the end of the piston rod of the first locking cylinder, the two first connecting rods are hinged to the end of the second connecting rod, the other end of the second connecting rod is connected to the fifth connecting rod, and the fifth connecting rod is divided into two groups, each group includes two fifth connecting rods, one group is symmetrically fixed at the top and bottom of the third vertical plate, and the other group is symmetrically fixed at the top and bottom of the first vertical plate; the middle part of the second connecting rod is hinged to the third connecting rod, and the other end of the third connecting rod is connected to the fifth connecting rod fixed to the top and bottom of the first vertical plate.

4. The adjustable forging die for shaft upsetting according to claim 3, characterized in that: The middle part of the fourth connecting rod is threadedly connected to the end of the piston rod of the locking cylinder through a threaded hole. The end of the piston rod of the locking cylinder is provided with a locking nut for adjusting and locking the position of the fourth connecting rod at the end of the piston rod.

5. The adjustable forging die for shaft upsetting according to claim 2, characterized in that: The connector includes a connecting shaft, which connects the first locking cylinder with the first vertical plate.

6. An adjustable forging die for shaft upsetting according to any one of claims 1 to 5, characterized in that: The first locking cylinder and the second locking cylinder are both oil cylinders or air cylinders.

7. The adjustable forging die for shaft upsetting according to claim 6, characterized in that: A cushion block is provided at the bottom of the accommodating space to adjust the positions of upsetting modules of different heights in the forging die.

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