A semi-axle vertical induction integrated quenching device

By designing a vertical induction hardening device for the half-shaft, the problem of hardening quality caused by unstable half-shaft positioning was solved, and a high-efficiency and stable hardening effect was achieved.

CN116855695BActive Publication Date: 2026-02-06JINGJIANG HALF AXLE (HUBEI) CO LTD
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Patent Information

Application Number
CN202310857727.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-13
Publication Date
2026-02-06
Estimated Expiration
2043-07-13

AI Technical Summary

Technical Problem

In the traditional vertical surface hardening process of half-shafts, the workpiece is unstable in the axial direction due to the forging dimensional error of the half-shaft flange and the center hole depth error, which affects the hardening quality and positional deviation.

Method used

A vertical induction hardening device for half-shafts is adopted, including components such as cabinet, fixed base, angle iron, sensor fixing plate, sensor pipe clamp and induction coil, which are connected by bolts and nuts to ensure stable positioning of half-shaft and fixation of sensor, thereby improving the stability and connectivity of hardening.

Benefits of technology

It improves the overall quenching efficiency and stability, ensures the accuracy and consistency of half-shaft quenching, and reduces quenching position deviation.

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Abstract

The application discloses a shaft vertical type induction integrated quenching device, which comprises a cabinet, a fixing seat is arranged on the cabinet, the fixing seat is connected with angle irons, the number of the angle irons is four, the positions of the angle irons correspond to the positions of the fixing seat, the angle irons are connected with an inductor fixing plate through bolts, the angle irons are arranged on the two sides of the inductor fixing plate respectively, the inductor fixing plate is connected with an induction ring through an inductor pipe clamp, the inductor pipe clamp connects and fixes the inductor fixing plate and the induction ring, a half shaft is arranged in the middle of the induction ring, an upper ejector pin oil cylinder is connected to one side of the half shaft, and a lower ejector pin seat is arranged on the other side of the half shaft. The shaft vertical type induction integrated quenching device improves the integrated quenching efficiency and strengthens the stability and connectivity of the integrated quenching.
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Description

Technical Field

[0001] This invention relates to the field of quenching technology, and in particular to a half-shaft vertical induction integral quenching device. Background Technology

[0002] The automotive half-shaft is a solid shaft that transmits torque between the differential and the drive wheels. Its quality significantly affects the vehicle's performance, and the surface hardening quality of the half-shaft directly impacts its lifespan. In particular, the positioning of the half-shaft on the induction hardening machine is a key factor determining the hardening quality. Traditional vertical surface hardening processes for half-shafts use upper and lower double-pin positioning. However, in actual production, errors in the forging dimensions of the half-shaft flange and the depth of the center hole can cause fluctuations in the workpiece's positioning along the axial direction. This results in fluctuations in the distance between the inner end face of the half-shaft flange and the sensor that fixes the machine tool coordinates, leading to unstable hardening layer depth at the R-arc of the half-shaft.

[0003] In existing technologies, the half-shaft is fixed during the quenching process using a "two-pronged" positioning method. This involves using a pair of cylinders with their centers opposing each other to hold the center of the flange and the bottom of the rod end of the half-shaft. Due to machining tolerances in the half-shaft, these two centers are not necessarily strictly coaxial. This results in inaccurate positioning of the R-section requiring quenching when fixing the half-shaft in this way. Since the position of the quenching inductor cannot be adjusted, this positioning method easily leads to quenching position deviations. Therefore, this invention provides a vertical induction integral quenching device for half-shafts, which not only improves the overall quenching efficiency but also enhances the stability and connectivity of the overall quenching process. Summary of the Invention

[0004] The purpose of this invention is to provide a half-shaft vertical induction integral quenching device, which not only improves the overall quenching efficiency, but also enhances the stability and connectivity of the overall quenching process.

[0005] To achieve the above objectives, the present invention provides a half-shaft vertical induction integral quenching device, comprising a cabinet, a fixed base on the cabinet, and four angle irons connected and fixed to the fixed base. The angle irons are positioned corresponding to the fixed bases and are connected and fixed to a sensor fixing plate by bolts. The angle irons are respectively located on both sides of the sensor fixing plate. The sensor fixing plate is connected to an induction coil by a sensor tube clamp, which connects and fixes the sensor fixing plate to the induction coil. A half-shaft is provided in the middle of the induction coil. An upper ejector cylinder is connected to one side of the half-shaft, and a lower ejector seat is provided on the other side of the half-shaft.

[0006] Preferably, the cabinet has an opening on one side, the cabinet is made of stainless steel, and a mounting base is provided on the side of the opening on the cabinet.

[0007] Preferably, there are four fixing seats, which are evenly distributed. Each fixing seat has screw holes and is fixed to the angle iron by bolts. Preferably, there are two sensor fixing plates, each of which connects to two angle irons and has several screw holes.

[0008] Preferably, the number of sensor tube clamps is five, with two sensor tube clamps located on one side of the sensor fixing plate and three sensor tube clamps located on the other side of the sensor fixing plate.

[0009] Preferably, the sensor clamp is provided with a corresponding nut. Preferably, the side of the half shaft with the motor is connected to the upper ejector cylinder, and the side of the half shaft with the disc is provided with the lower ejector seat.

[0010] Therefore, the present invention provides a semi-shaft vertical induction integral quenching device with the above-mentioned structure, which not only improves the overall quenching efficiency, but also enhances the stability and connectivity of the overall quenching process.

[0011] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of an embodiment of a vertical induction hardening device for a half-shaft according to the present invention;

[0013] Figure 2 This is a schematic diagram of the cabinet structure of an embodiment of the vertical induction integral quenching device for half-shaft according to the present invention;

[0014] Figure 3 This is a side view of an embodiment of a semi-shaft vertical induction integral quenching device according to the present invention. (Figure reference numerals)

[0015] 1. Cabinet; 2. Mounting base; 3. Angle iron; 4. Sensor mounting plate; 5. Sensor tube clamp; 6. Induction coil; 7. Half shaft; 8. Motor; 9. Upper ejector cylinder; 10. Disc; 11. Lower ejector base. Detailed Implementation

[0016] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments. Unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by those skilled in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0017] like Figure 1-3 As shown, this invention provides a semi-shaft vertical induction integral quenching device, including a cabinet 1 with an opening on one side. The cabinet 1 is made of stainless steel, and a fixing seat 2 is provided on the side of the opening on the cabinet 1. Bolts and screw holes are used to connect and fix the angle iron 3 to the fixing seat 2 to ensure a tight connection.

[0018] There are four fixing seats 2, which are evenly distributed. Each fixing seat 2 has a screw hole. The fixing seat 2 is fixed to the angle iron 3 by bolts, which facilitates the connection and fixation of the angle iron 3 and the fixing seat 2.

[0019] The mounting base 2 is connected and fixed to the angle iron 3. There are four angle irons 3. The position of the angle iron 3 corresponds to the position of the mounting base 2. The angle iron 3 is connected and fixed to the sensor mounting plate 4 by bolts.

[0020] There are two sensor mounting plates 4, each sensor mounting plate 4 is connected to two angle irons 3, and each sensor mounting plate 4 is provided with several screw holes.

[0021] Angle irons 3 are respectively set on both sides of the sensor fixing plate 4. The sensor fixing plate 4 is connected to the sensing coil 6 through the sensor tube clamp 5. There are five sensor tube clamps 5, and each sensor tube clamp 5 is equipped with a corresponding nut.

[0022] Two sensor clamps 5 are located on one side of the sensor fixing plate 4, and three sensor clamps 5 are located on the other side of the sensor fixing plate 4. The sensor clamps 5 connect and fix the sensor fixing plate 4 to the sensing coil 6. A half shaft 7 is provided in the middle of the sensing coil 6. A motor 8 is provided on one side of the half shaft 7, which is connected to the upper ejector cylinder 9. A lower ejector seat 11 is provided on one side of the half shaft 7, which is provided with a disc 10.

[0023] Therefore, the present invention provides a semi-shaft vertical induction integral quenching device with the above-mentioned structure, which not only improves the overall quenching efficiency, but also enhances the stability and connectivity of the overall quenching process.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A vertical induction hardening device for half-shafts, comprising a cabinet with an opening on one side, the cabinet being made of stainless steel, and a fixing seat on the side of the opening on the cabinet; the fixing seat and angle iron are fixedly connected by bolts; the number of angle irons is four, the positions of the angle irons corresponding to the positions of the fixing seats, the angle irons are fixedly connected to a sensor fixing plate by bolts, the angle irons are respectively located on both sides of the sensor fixing plate, the sensor fixing plate is connected to an induction coil through a sensor tube clamp, the sensor tube clamp connects and fixes the sensor fixing plate to the induction coil, a half-shaft is provided in the middle of the induction coil, a motor is provided on one side of the half-shaft and an upper ejector cylinder is connected to it, and a lower ejector base is provided on one side of the half-shaft with a disc; The number of fixing seats is four, and the four fixing seats are evenly distributed. Each fixing seat is provided with a screw hole. The number of sensor tube clamps is five, with two sensor tube clamps located on one side of the sensor fixing plate and three sensor tube clamps located on the other side of the sensor fixing plate.

2. The half-shaft vertical induction integral quenching device according to claim 1, characterized in that: There are two sensor mounting plates, each of which is connected to two angle irons, and each sensor mounting plate is provided with several screw holes.

3. The half-shaft vertical induction integral quenching device according to claim 1, characterized in that: The sensor tube clamp is equipped with a corresponding nut.

Citation Information

Patent Citations

  • Vertical quench machining tool semi -axle flange fixes a position frock

    CN207596904U