CN203947132U - Tooth surface back cold quenching induction device - Google Patents

Abstract

The tooth surface back cold quenching induction device comprises a large gear workpiece, a quenching liquid auxiliary spraying assembly, a transition plate, a quenching inductor assembly and a busbar assembly. The bus bar assembly is fixedly connected with the quenching inductor assembly through a copper screw, so that a bus bar water feeding pipe of the bus bar assembly is connected with an inductor return cooling water pipe of the quenching inductor assembly, and a bus bar water return pipe of the bus bar assembly is connected with an inductor upper cooling water pipe of the quenching inductor assembly to form an internal cooling system of the quenching inductor. The transition plate is connected with the quenching inductor assembly and the quenching liquid auxiliary spraying assembly by bolts from top to bottom, and the quenching liquid flows to the two quenching liquid auxiliary spraying assemblies through the quenching liquid pipe and the transition plate. The quenching liquid auxiliary spraying assembly can adjust the tooth surface contact angle with the large-size gear workpiece through the auxiliary spraying angle adjusting part. The utility model not only satisfies the quenching hardness and depth after quenching, but also has good quality, high efficiency and no crack.

Description

Tooth surface back cold quenching induction device

technical field

The utility model relates to a gear surface induction quenching heat treatment technology, in particular to a tooth surface back cooling quenching induction device for a quenching machine tool.

Background technique

At present, the domestic tooth induction quenching uses a spray water box directly on the sensor. During the tooth induction hardening, the spray water box on the sensor is directly sprayed to the surface of the tooth. During the tooth induction hardening, the internal stress of the quenched workpiece material cannot be completely If it is applied evenly, the water in the water box will be sprayed directly onto the surface of the teeth, so that cracks will appear on the surface of the quenched teeth.

Utility model content

The technical problem to be solved by the utility model is that, in order to solve the problem of cracks in the tooth surface quenching, a tooth surface back cold quenching induction device is provided. This device can perform single tooth back cold quenching to change the material structure. There will be quenching cracks, and the larger surface hardness and hardened layer depth are obtained, not only the deformation is small, but the quenching quality is good, and it is simple and convenient to use.

The technical solutions adopted are:

Tooth surface back cooling quenching induction device, including large gear workpiece, quenching liquid auxiliary spray assembly, transition plate, quenching sensor assembly, bus bar assembly. Put the large gear workpiece to be quenched on the quenching machine tool, and connect the bus bar assembly with the transformer bracket of the quenching machine tool. The busbar assembly and the quenching sensor assembly are fixedly connected by copper screws, so that the busbar upper water pipe of the busbar assembly is connected to the inductor return cooling water pipe of the quenching sensor assembly, and the busbar return pipe of the busbar assembly is connected to the quenching sensor assembly. The cooling water pipe on the sensor of the sensor assembly is connected to form the internal cooling system of the quenching sensor. Bolts are used to connect the transition plate to the quenching sensor assembly downwards, and to connect the transition plate to the quenching liquid auxiliary spraying assembly upwards, and the quenching liquid flows to the two quenching liquid auxiliary spraying assemblies through the quenching liquid pipe and the transition plate.

The aforementioned quenching liquid auxiliary spray assembly can adjust the tooth surface contact angle with the large gear workpiece through the auxiliary spray angle adjustment member.

The utility model can internally cool the quenching inductor through the cooling water in the busbar, and can cool the back of the quenched teeth through the auxiliary spray assembly of the quenching liquid, improve the surface hardness and hardened layer depth of the quenched workpiece, and meet the requirements of the internal structure of the material. Changes to achieve crack-free quenching and improve production efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

The tooth surface back cooling quenching induction device includes a large gear workpiece 1, a quenching liquid auxiliary spray assembly 2, a transition plate 3, a quenching sensor assembly 4, and a bus assembly 5. Put the quenched large gear workpiece 1 on the quenching machine tool, and connect the bus bar assembly 5 with the transformer bracket of the quenching machine tool. The busbar assembly 5 and the quenching sensor assembly 4 are fixedly connected by copper screws 8, so that the busbar upper water pipe 6 of the busbar assembly 5 is connected with the inductor return cooling water pipe 10 of the quenching sensor assembly 4, and the busbar assembly 5 The confluence discharge water pipe 7 is connected with the cooling water pipe 9 on the inductor of the quenching inductor assembly 4 to form the internal cooling system of the quenching inductor. Connect the transition plate 3 with the quenching sensor assembly 4 downward with bolts, and connect the transition plate 3 with the quenching liquid auxiliary spray assembly 2 upward, and the quenching liquid flows through the quenching liquid pipe 11 and the transition plate 3 to the two quenching liquid auxiliary sprays component2. The quenching liquid auxiliary spray assembly 2 can adjust the tooth surface contact angle with the large gear workpiece 1 through the auxiliary spray angle adjustment member 12 . The back side of the quenching tooth is cooled by the quenching liquid auxiliary spray head assembly 2, so as to prevent the tooth from cracking due to insufficient cooling during induction hardening. During quenching, the transformer bracket of the machine tool moves from bottom to top to realize tooth surface back cooling induction hardening.

Claims (2)

1. Tooth surface back cooling quenching induction device, including large gear workpiece (1), quenching liquid auxiliary spray assembly (2), transition plate (3), quenching sensor assembly (4), bus bar assembly (5), the The large gear workpiece (1) to be quenched is placed on the quenching machine tool, and the bus bar assembly (5) is connected to the transformer bracket of the quenching machine tool, which is characterized in that the bus bar assembly (5) and the quenching sensor assembly (4) Fix the connection with the copper screw (8), so that the bus upper water pipe (6) of the bus bar assembly (5) is connected to the inductor return cooling water pipe (10) of the quenching sensor assembly (4), and the bus bar assembly (5) The confluence drain water pipe (7) is connected with the cooling water pipe (9) on the sensor of the quenching sensor assembly (4) to form the internal cooling system of the quenching sensor; use bolts to connect the transition plate (3) and the quenching sensor assembly ( 4) Connect, connect the transition plate (3) with the quenching liquid auxiliary spray assembly (2) upwards, and the quenching liquid flows to the two quenching liquid auxiliary spray assemblies (2) through the quench liquid pipe (11) and the transition plate (3) . 2. The cooling and quenching induction device for the back of the tooth surface according to claim 1, characterized in that the quenching liquid auxiliary spray assembly (2) can be adjusted with the large gear workpiece (1) through the auxiliary spray angle adjustment member (12) ) tooth surface contact angle.