Cold forging device for hollow shaft machining

Vibration aging treatment using a cold forging device solves the problem of stress accumulation in hollow shafts during processing, achieving stress release and improving the service life and reliability of hollow shafts.

CN224487568UActive Publication Date: 2026-07-14YANCHENG LIWEI PRECISION TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANCHENG LIWEI PRECISION TECHNOLOGY CO LTD
Filing Date
2025-05-30
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

During the processing of existing hollow shafts, the cold forging equipment causes a large amount of stress to accumulate inside the metal material, which may lead to deformation and cracking of the hollow shaft during subsequent use, affecting its service life and reliability.

Method used

A cold forging device is used, in which a bottom hydraulic press drives a vibrating plate and spring to vibrate, and an electromagnet holds the hollow shaft in place. The vibrator is used to release stress and achieve vibration aging treatment.

Benefits of technology

It effectively releases the stress generated by cold forging of hollow shafts, avoids deformation and cracking, and improves the service life and reliability of hollow shafts.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hollow shaft processing is used cold forging device relates hollow shaft processing equipment technical field, including the workstation, the workstation upper surface is provided with the fixed base, and the workstation lower surface is provided with the bottom hydraulic component, one side of fixed base is provided with the support frame, and the bottom hydraulic component top is provided with the vibration magnetic attraction board through the workstation, the top of support frame is provided with the top hydraulic component, two vibrators are symmetrically set up in vibration magnetic attraction board bottom part both sides, and vibration magnetic attraction board top is provided with the bottom mould, and vibration magnetic attraction board includes the vibration board, the lower surface both ends of vibration board are fixedly connected with a plurality of springs respectively, and the upper surface both sides of vibration board are fixedly connected with two electromagnets, through above -mentioned structure, the utility model discloses can attract tight top bottom mould inside the hollow shaft of forming, and when the hollow shaft is vibrated and is aged, and then releases the stress of hollow shaft cold forging, avoids the deformation, cracking and so on of hollow shaft.
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Description

Technical Field

[0001] This utility model relates to the technical field of hollow shaft processing equipment, specifically to a cold forging device for hollow shaft processing. Background Technology

[0002] A hollow shaft is a type of shaft component characterized by its hollow internal structure, meaning the central part of the shaft is empty, forming a through-hole. This design allows the hollow shaft to transmit torque and rotational motion while also meeting certain special engineering requirements, such as weight reduction and the arrangement of pipelines or cables through internal channels.

[0003] Existing cold forging apparatuses for hollow shaft machining often rely on hydraulic equipment to apply pressure to the hollow shaft during processing, inducing plastic deformation to achieve the desired shape. However, when the hollow shaft undergoes plastic deformation under pressure, a large amount of stress accumulates within the metal material. This stress is highly likely to cause deformation and cracking of the hollow shaft during subsequent use, adversely affecting its service life and reliability. Therefore, we propose a cold forging apparatus for hollow shaft machining to solve the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a cold forging apparatus for processing hollow shafts, addressing the problems mentioned in the background section. Existing cold forging apparatuses for processing hollow shafts often rely on hydraulic equipment to apply pressure to the hollow shaft during processing, causing plastic deformation to achieve the desired shape. However, when the hollow shaft undergoes plastic deformation under pressure, a large amount of stress accumulates inside the metal material. This stress is highly likely to cause deformation and cracking of the hollow shaft during subsequent use, adversely affecting its service life and reliability.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A cold forging device for processing hollow shafts includes a processing table, a fixed seat is provided on the upper surface of the processing table, a bottom hydraulic component is provided on the lower surface of the processing table, a support frame is provided on one side of the fixed seat, a vibrating magnetic suction plate is provided through the top of the bottom hydraulic component and the processing table, a top hydraulic component is provided on the top of the support frame, two vibrators are symmetrically arranged on both sides of the bottom of the vibrating magnetic suction plate, and a bottom mold is provided on the top of the vibrating magnetic suction plate.

[0007] The vibrating magnetic plate includes a vibrating plate, with multiple springs fixedly connected to both sides of the lower surface of the vibrating plate, and two electromagnets symmetrically fixedly connected to both sides of the upper surface of the vibrating plate.

[0008] Furthermore, the fixed base is provided with a top plate slot, the fixed base is fixedly connected to the processing table, a vibration plate slot is provided on the outer side of the top of the top plate slot, two vibrator slots are symmetrically provided on both sides of the top plate slot, a movable groove is provided on the outer side of the top of the vibration plate slot, and the support frame is fixedly connected to one side of the processing table.

[0009] Furthermore, the bottom hydraulic component includes a bottom hydraulic press, the output end of which passes through the processing table and the fixed base and is fixedly connected to a top plate. The bottom hydraulic press is fixedly connected to the processing table, and the outer side of the top plate is slidably connected to a top plate slot.

[0010] Furthermore, the outer side of the vibration plate is slidably connected to the vibration plate slot, and the bottom of the plurality of springs is fixedly connected to the upper surface of the top plate.

[0011] Furthermore, the two vibrators are fixedly connected to both sides of the lower surface of the vibrating plate, and the vibrators are slidably connected to the vibrator slots. Two magnetic slots are symmetrically arranged on both sides of the lower surface of the bottom mold. The bottom mold is fixedly connected to two electromagnets through the two magnetic slots, and the bottom mold is fixedly connected to the upper surface of the vibrating plate.

[0012] Furthermore, the top hydraulic component includes a top hydraulic press, the output end of which passes through a support frame and is fixedly connected to a top mold, and the top hydraulic press is fixedly connected to the support frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model uses a bottom hydraulic press to lift the top plate, which in turn lifts the vibrating plate. Then, two electromagnets are energized to hold the hollow shaft formed inside the top and bottom molds. The two vibrators then drive the vibrating plate and multiple springs at the bottom to vibrate, which can perform vibration aging treatment on the formed hollow shaft, thereby releasing the stress generated by the cold forging of the hollow shaft and preventing deformation, cracking, and other problems in the subsequent use of the hollow shaft.

[0015] 2. This utility model, through the top plate slot set on the fixed base, can retract the top plate by the bottom hydraulic press, and then lock the vibrating plate by the vibrating plate slot, which facilitates more stable cold forging. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a side sectional view of the installation structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the mounting structure of the fixing base of this utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the vibrating magnetic suction plate of this utility model;

[0020] Reference numerals: 1. Processing table; 2. Fixed base; 201. Top plate slot; 202. Vibration plate slot; 203. Vibrator slot; 204. Movable slot; 3. Bottom hydraulic component; 301. Bottom hydraulic press; 302. Top plate; 4. Support frame; 5. Vibration magnetic plate; 501. Vibration plate; 502. Spring; 503. Electromagnet; 6. Top hydraulic component; 601. Top hydraulic press; 602. Top mold; 7. Vibrator; 8. Bottom mold; 801. Magnetic slot. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 This utility model provides a technical solution: a cold forging device for processing hollow shafts, including a processing table 1, a fixed seat 2 on the upper surface of the processing table 1, a bottom hydraulic component 3 on the lower surface of the processing table 1, a support frame 4 on one side of the fixed seat 2, a vibrating magnetic suction plate 5 passing through the processing table 1 at the top of the bottom hydraulic component 3, a top hydraulic component 6 at the top of the support frame 4, two vibrators 7 symmetrically arranged on both sides of the bottom of the vibrating magnetic suction plate 5, and a bottom mold 8 at the top of the vibrating magnetic suction plate 5;

[0023] The vibrating magnetic plate 5 includes a vibrating plate 501. Multiple springs 502 are fixedly connected to both sides of the lower surface of the vibrating plate 501. Two electromagnets 503 are symmetrically fixedly connected to both sides of the upper surface of the vibrating plate 501.

[0024] The fixed base 2 is provided with a top plate slot 201, and the fixed base 2 is fixedly connected to the processing table 1. A vibration plate slot 202 is provided on the outer side of the top of the top plate slot 201. Two vibrator slots 203 are symmetrically arranged on both sides of the top plate slot 201. A movable groove 204 is provided on the outer side of the top of the vibration plate slot 202. The support frame 4 is fixedly connected to one side of the processing table 1. In this example, by providing the vibrator slots 203, the vibrator 7 can be inserted into the vibrator slots 203 when the top plate 302 is lowered, which facilitates the cold forging of the hollow shaft.

[0025] The bottom hydraulic component 3 includes a bottom hydraulic press 301. The output end of the bottom hydraulic press 301 passes through the processing table 1 and the fixed base 2 and is fixedly connected to a top plate 302. The bottom hydraulic press 301 is fixedly connected to the processing table 1, and the outer side of the top plate 302 is slidably connected to the top plate slot 201. In this example, by setting the bottom hydraulic component 3, the vibrating magnetic suction plate 5 can be driven to rise and fall, which facilitates cold forging and vibration aging treatment.

[0026] The outer side of the vibrating plate 501 is slidably connected to the vibrating plate slot 202, and the bottom of multiple springs 502 is fixedly connected to the upper surface of the top plate 302. In this example, by setting multiple springs 502, the top vibrating plate 501 is made to vibrate, thereby performing vibration aging treatment on the formed hollow shaft.

[0027] Two vibrators 7 are fixedly connected to both sides of the lower surface of the vibrating plate 501, and the vibrators 7 are slidably connected to the vibrator slots 203. Two magnet slots 801 are symmetrically arranged on both sides of the lower surface of the bottom mold 8. The bottom mold 8 is fixedly connected to two electromagnets 503 through the two magnet slots 801, and the bottom mold 8 is fixedly connected to the upper surface of the vibrating plate 501. In this example, by setting the vibrators 7, the vibrating plate 501 can be driven to rotate, which facilitates vibration aging treatment.

[0028] The top hydraulic component 6 includes a top hydraulic press 601. The output end of the top hydraulic press 601 passes through the support frame 4 and is fixedly connected to the top mold 602. The top hydraulic press 601 is fixedly connected to the support frame 4.

[0029] Working principle: The hollow shaft is placed on the bottom mold 8. The top hydraulic press 601 pushes the top mold 602 down, causing the hollow shaft to deform. Then the top mold 602 is raised, and the bottom hydraulic press 301 lifts the top plate 302, causing the top plate 302 to slide upward inside the top plate slot 201. This causes the vibrating plate 501 to slide out of the vibrating plate slot 202 and into the movable groove 204. The two electromagnets 503 are energized to attract the formed hollow shaft. The two vibrators 7 work, driving the vibrating plate 501 and multiple springs 502 to vibrate, thus performing vibration aging treatment on the formed hollow shaft.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cold forging apparatus for machining hollow shafts, characterized in that: The equipment includes a processing table (1), a fixed seat (2) on the upper surface of the processing table (1), a bottom hydraulic component (3) on the lower surface of the processing table (1), a support frame (4) on one side of the fixed seat (2), a vibrating magnetic suction plate (5) passing through the processing table (1) at the top of the bottom hydraulic component (3), a top hydraulic component (6) at the top of the support frame (4), two vibrators (7) symmetrically arranged on both sides of the bottom of the vibrating magnetic suction plate (5), and a bottom mold (8) at the top of the vibrating magnetic suction plate (5). The vibrating magnetic plate (5) includes a vibrating plate (501), and multiple springs (502) are fixedly connected to both sides of the lower surface of the vibrating plate (501), and two electromagnets (503) are symmetrically fixedly connected to both sides of the upper surface of the vibrating plate (501).

2. The cold forging apparatus for machining hollow shafts according to claim 1, characterized in that: The fixed base (2) is provided with a top plate slot (201), the fixed base (2) is fixedly connected to the processing table (1), the top outer side of the top plate slot (201) is provided with a vibration plate slot (202), two vibrator slots (203) are symmetrically provided on both sides of the top plate slot (201), the top outer side of the vibration plate slot (202) is provided with a movable slot (204), and the support frame (4) is fixedly connected to one side of the processing table (1).

3. The cold forging apparatus for machining hollow shafts according to claim 2, characterized in that: The bottom hydraulic component (3) includes a bottom hydraulic press (301). The output end of the bottom hydraulic press (301) passes through the processing table (1) and the fixed seat (2) and is fixedly connected to a top plate (302). The bottom hydraulic press (301) is fixedly connected to the processing table (1), and the outer side of the top plate (302) is slidably connected to the top plate slot (201).

4. The cold forging apparatus for machining hollow shafts according to claim 3, characterized in that: The outer side of the vibration plate (501) is slidably connected to the vibration plate slot (202), and the bottom of the multiple springs (502) is fixedly connected to the upper surface of the top plate (302).

5. The cold forging apparatus for machining hollow shafts according to claim 4, characterized in that: The two vibrators (7) are fixedly connected to the two sides of the lower surface of the vibrating plate (501) respectively. The vibrators (7) are slidably connected to the vibrator slots (203). The two sides of the lower surface of the bottom mold (8) are symmetrically provided with two magnet slots (801). The bottom mold (8) is fixedly connected to the two electromagnets (503) through the two magnet slots (801) respectively. The bottom mold (8) is fixedly connected to the upper surface of the vibrating plate (501).

6. The cold forging apparatus for machining hollow shafts according to claim 1, characterized in that: The top hydraulic component (6) includes a top hydraulic press (601), the output end of which passes through the support frame (4) and is fixedly connected to the top mold (602). The top hydraulic press (601) is fixedly connected to the support frame (4).