Shaping device for integrated large-plane rotating shaft part after heat treatment

Abstract

The utility model discloses an integrated large-plane rotating shaft part reshaping device after heat treatment, which comprises a device body, the device body comprises a lower die device, an upper die device and rotating shaft parts, the upper die device is arranged at the top of the lower die device, a group of rotating shaft parts are symmetrically arranged at the top of the lower die device, and the upper die device is arranged at the top of the lower die device. The lower die device is arranged below the upper die device; the lower die device comprises a lower die bottom plate and a lower die block, the lower die bottom plate is located at the bottom of the lower die block, the lower die bottom plate and the lower die block are each of a rectangular structure, a set of symmetrically-distributed lower die cavities are formed in the top of the lower die block, and lower die column receding positions are arranged at one ends of the lower die cavities and are each of a rectangular structure. A lower die shaping plane convex surface insert is installed in the lower die cavity and is of a rectangular protruding structure. The device can solve the problem of reshaping rebound caused by high hardness of parts, the yield is improved, and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to machining technical field, concretely is a kind of shaping device after integrated large plane shaft part heat treatment of integrated. BACKGROUND

[0002] Shaft is cylindrical article worn in the middle of bearing or wheel or gear, but also a small part is square, shaft is the mechanical part of supporting rotating part and with it together to transmit motion, torque or bending moment. Generally for metal round rod, each section can have different diameter. The part of rotating motion in machine is installed on shaft.

[0003] The existing shaft part machining has the following defects:

[0004] The existing shaft part is prone to plane deformation after heat treatment due to material stress release, especially large plane structure deformation is more remarkable. Traditional shaping mode usually adopts single-side pressing or simple die correction, but when the hardness of part is high (such as HRC40 or more), it is easy to rebound, resulting in that flatness is not up to standard, and subsequent assembly is affected.

[0005] Therefore, a solution is needed. UTILITY MODEL CONTENT

[0006] (I) technical problem solved

[0007] In view of the deficiencies of the prior art, the utility model provides a shaping device for integrated large plane shaft part after heat treatment, to solve the problems in the above background art.

[0008] (II) technical scheme

[0009] To achieve the above purpose, the utility model discloses a shaping device for integrated large plane shaft part after heat treatment, which comprises a device body, the device body comprises a lower die device, an upper die device and a shaft part, the upper die device is installed on the top of the lower die device, the shaft part is provided with a group, the shaft part is symmetrically installed on the top of the lower die device, and is located below the upper die device. The lower die device comprises a lower die bottom plate and a lower die block, the lower die bottom plate and the lower die block are smoothly connected and integrally formed, the lower die bottom plate is located at the bottom of the lower die block, the lower die bottom plate and the lower die block are rectangular structures, a group of lower die cavities are symmetrically arranged on the top of the lower die block, the lower die cavity is L-shaped structure, the lower die cavity is provided with a lower die column avoidance position at one end, the lower die column avoidance position is rectangular structure, a lower die shaping plane convex surface insert is installed in the lower die cavity, and the lower die shaping plane convex surface insert is rectangular convex structure.

[0010] Preferably, the bottom of the upper mold is provided with two groups of guide columns symmetrically distributed.

[0011] Preferably, the upper mold device comprises an upper mold base and an upper mold block, the upper mold base and the upper mold block are smoothly connected and integrally formed, the upper mold block is located below the upper mold base, the bottom of the upper mold block is provided with a group of upper mold cavities symmetrically distributed, the upper mold cavities are in L-shaped structure, one end of the upper mold cavities is provided with an upper mold column avoidance position, and an upper mold shaping flat concave insert is arranged in the upper mold cavities.

[0012] Preferably, the bottom of the upper mold block is provided with two groups of guide columns symmetrically distributed.

[0013] (Three) beneficial effects

[0014] The utility model provides a kind of integrated large plane shaft part shaping device after heat treatment. It has the following beneficial effects:

[0015] The integrated large plane shaft part shaping device after heat treatment in the scheme can solve the problem of shaping rebound caused by high hardness of the part, improve yield and reduce cost. This kind has the following beneficial effects: rebound is inhibited: by the interference fit of concave-convex insert, reverse stress is formed during press shaping, which offsets the residual stress of heat treatment and prevents rebound;

[0016] High-precision correction: guide column positioning ensures mold closing accuracy ±0.02mm, and flatness correction can reach within 0.05mm;

[0017] Yield improvement: after the flatness meets the standard, the shaft and the shell are bonded without glue leakage, and the yield is improved from 70% to more than 95%;

[0018] Cost reduction: long service life, reusable, single-piece processing cost reduced by 30% BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall structure diagram of the utility model;

[0020] Figure 2 It is the structure diagram of the lower mold device of the utility model;

[0021] Figure 3 It is the structure diagram of the upper mold device of the utility model;

[0022] Figure 4 It is the structure diagram of the shaft part of the utility model.

[0023] In the figure, 1, device body; 2, lower die device; 3, upper die device; 4, rotating shaft part; 5, lower die base plate; 6, lower die block; 7, lower die cavity; 8, lower die shaping flat convex insert; 9, lower die column avoidance position; 10, guide column hole; 11, upper die base plate; 12, upper die block; 13, upper die cavity; 14, upper die column avoidance position; 15, upper die shaping flat concave insert; 16, guide-in column. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Please refer to Figures 1-4 The embodiments of the present application provide a technical solution:

[0026] Embodiments

[0027] In view of the above problems to be solved: the existing rotating shaft part is prone to planar deformation after heat treatment due to material stress release, especially the deformation of large planar structure is more significant. The traditional shaping method usually adopts single-sided pressing or simple die correction, but when the hardness of the part is high (such as HRC 40 or above), it is easy to rebound, resulting in that the flatness does not meet the standard, which affects the subsequent assembly.

[0028] The solution is as follows: a one-piece integrated large-plane rotating shaft part shaping device after heat treatment, comprising a device body 1, the device body 1 comprising a lower mold device 2, an upper mold device 3 and a rotating shaft part 4, the upper mold device 3 being installed on the top of the lower mold device 2, the rotating shaft part 4 being provided with a group, the group of rotating shaft parts 4 being installed in a symmetrical manner on the top of the lower mold device 2 and below the upper mold device 3; the lower mold device 2 comprises a lower mold bottom plate 5 and a lower mold block 6, the lower mold bottom plate 5 and the lower mold block 6 being smoothly transitioned and integrally processed into a shaped structure, the lower mold bottom plate 5 being located at the bottom of the lower mold block 6, the lower mold bottom plate 5 and the lower mold block 6 both being rectangular in shape, a group of lower mold cavities 7 being provided in a symmetrical manner on the top of the lower mold block 6, the lower mold cavities 7 being L-shaped structures, the lower mold cavities 7 being provided with lower mold column avoidance positions 9 at one end, the lower mold column avoidance positions 9 being rectangular in shape, lower mold shaping flat convex inserts 8 being installed in the lower mold cavities 7, the lower mold shaping flat convex inserts 8 being rectangular convex structures, the workers placing the rotating shaft part after heat treatment in the lower mold cavities 7 on the top of the lower mold block 6, ensuring that the column part is embedded in the lower mold column avoidance positions 9; the workers starting the press to drive the upper mold device 2 to press down, two groups of guide-in columns 16 on the bottom of the upper mold block 12 being inserted into the guide column holes 10 on the top of the lower mold block 6 to realize precise positioning, the upper mold shaping flat concave inserts 6 and the lower mold shaping flat convex inserts 8 applying uniform pressure to the large plane of the rotating shaft to correct the deformation area, the mold being opened after pressure maintaining for 5-10 seconds, the shaped part being taken out, and the part being qualified after flatness detection entering the next process.

[0029] Two groups of guide column holes 10 are provided in a symmetrical manner on the top of the lower mold block 6, the guide column holes 10 being circular in shape, the guide column holes 10 being provided to facilitate the insertion of the guide-in columns 16, so that the lower mold device 2 and the upper mold device 3 are combined, and a lubricating coating is provided between the guide-in columns 16 and the guide column holes 10, so that the friction between the guide-in columns 16 and the guide column holes 10 can be reduced.

[0030] The upper mold device 3 comprises an upper mold bottom plate 11 and an upper mold block 12, the upper mold bottom plate 11 and the upper mold block 12 being smoothly transitioned and integrally processed into a shaped structure, the upper mold block 12 being located below the upper mold bottom plate 11, a group of upper mold cavities 13 being provided in a symmetrical manner on the bottom of the upper mold block 12, the upper mold cavities 13 being L-shaped structures, the upper mold cavities 13 being provided with upper mold column avoidance positions 14 at one end, upper mold shaping flat concave inserts 15 being installed in the upper mold cavities 13, the upper mold shaping flat concave inserts 15 being rectangular recessed structures, the rotating shaft part 4 being placed between the upper and lower molds, and the concave-convex cooperation of the upper mold shaping flat concave inserts 6 and the lower mold shaping flat convex inserts 8 correcting the plane deformation.

[0031] The upper module 12 bottom is equipped with two groups of symmetrically distributed guide columns 16, the guide columns 16 are in cylindrical structure, the guide column 16 of the upper module 12 bottom can be inserted into the guide column hole 10 of the lower module 6, so that the lower die device 2 and the upper die device 3 are combined, and a lubricating coating is arranged between the guide column 16 and the guide column hole 10, so that the friction between the guide column 16 and the guide column hole 10 can be reduced.

[0032] Working principle: during operation, the worker places the heat-treated shaft part in the lower mold cavity 7 on the top of the lower module 6, ensures that the column part is embedded in the lower mold column avoidance position 9; the worker starts the press to drive the upper die device 2 to press down, the two groups of guide columns 16 on the bottom of the upper module 12 are inserted into the guide column holes 10 on the top of the lower module 6 to realize accurate positioning, the upper shaping plane concave insert 6 and the lower shaping plane convex insert 8 apply uniform pressure to the large plane of the shaft, correct the deformation area, and open the mold after pressure maintaining for 5-10 seconds, take out the shaped part, and enter the next process after the flatness detection is qualified.

[0033] The utility model discloses a 1, device body, 2, lower die device, 3, upper die device, 4, shaft part, 5, lower mold base plate, 6, lower module, 7, lower mold cavity, 8, lower mold shaping plane convex insert, 9, lower mold column avoidance position, 10, guide column hole, 11, upper mold base plate, 12, upper module, 13, upper mold cavity, 14, upper mold column avoidance position, 15, upper mold shaping plane concave insert, 16, guide column, and the structure and principle of all components are general standard parts or components known to those skilled in the art, which can be known by technical manual or obtained by conventional experimental method, the problem solved by the utility model is that the shaft part is prone to plane deformation after heat treatment due to material stress release, especially the deformation of large plane structure is more remarkable. The traditional shaping mode usually adopts single side pressurization or simple mold correction, but when the hardness of the part is high (such as HRC40 or more), it is easy to rebound, which leads to the problem of non-standard flatness, affecting subsequent assembly. The utility model can solve the shaping rebound problem caused by high hardness of the part through the mutual combination of the above components, improve the yield and reduce the cost.

[0034] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure mark in the claims should not be regarded as limiting the involved claims.

[0035] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A device for shaping an integrated large flat pivot part after heat treatment, characterized in that: The utility model relates to a kind of moulding machine, including device body (1), the device body (1) includes lower mould device (2), upper mould device (3) and pivot part (4), the upper mould device (3) is installed at lower mould device (2) top, the pivot part (4) is provided with a group, a group of the pivot part (4) is installed in symmetrical mode at lower mould device (2) top, and located below upper mould device (3); The lower mould device (2) includes lower mould bottom plate (5) and lower mould block (6), the lower mould bottom plate (5) and lower mould block (6) are smoothly transitioned and integrally processed into shape structure, the lower mould bottom plate (5) is located at lower mould block (6) bottom, the lower mould bottom plate (5) and lower mould block (6) are all rectangular structure, a group of lower mould cavity (7) being symmetrically distributed is set in the top of the lower mould block (6), the lower mould cavity (7) is L-shaped structure, the lower mould cavity (7) one end is equipped with lower mould column empty space (9), the lower mould column empty space (9) is rectangular structure, lower mould shaping plane convex surface insert piece (8) is installed in the lower mould cavity (7), the lower mould shaping plane convex surface insert piece (8) is rectangular convex structure.

2. The device according to claim 1, characterized in that it is a device for shaping large planar shaft parts after heat treatment. Two groups of guide column holes (10) being symmetrically distributed are set in the top of the lower mould block (6), the guide column hole (10) is circular structure.

3. The device according to claim 1, characterized in that it is a device for shaping large planar shaft parts after heat treatment. The upper mould device (3) includes upper mould bottom plate (11) and upper mould block (12), the upper mould bottom plate (11) and upper mould block (12) are smoothly transitioned and integrally processed into shape structure, the upper mould block (12) is located below upper mould bottom plate (11), a group of upper mould cavity (13) being symmetrically distributed is set in the bottom of the upper mould block (12), the upper mould cavity (13) is L-shaped structure, the upper mould cavity (13) one end is equipped with upper mould column empty space (14), upper mould shaping plane concave surface insert piece (15) is installed in the upper mould cavity (13), the upper mould shaping plane concave surface insert piece (15) is rectangular recessed structure.

4. The device according to claim 3, characterized in that it is a device for the shaping of a one-piece integrated large planar pivot part after heat treatment. Two groups of guide-in columns (16) being symmetrically distributed are set in the bottom of the upper mould block (12), the guide-in column (16) is cylindrical structure.

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