High-frequency quenching spring center device

Abstract

The utility model discloses a high-frequency quenching spring centre device, which relates to the technical field of machine tool parts, aims to solve the problem that hinged edge products are easy to deform in the quenching process, and comprises a centre body, a mounting cavity is arranged at the top end of the centre body, a spring is arranged in the mounting cavity, and a spring is arranged in the mounting cavity. A base plate is arranged at the top end of the spring, and the top end of the spring abuts against the base plate. The machine tool tip extends into the mounting cavity and abuts against the base plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of machine tool parts, and particularly relates to a high-frequency quenching spring center device. BACKGROUND

[0002] High-frequency quenching is mostly used for surface quenching of industrial metal parts, is a kind of metal heat treatment method that makes the surface of workpiece produce certain induced current, rapidly heats the surface of parts, and then rapidly quenches. Induction heating equipment, that is, equipment for carrying out induction heating on parts to carry out surface quenching.

[0003] At present, for hinge edge type products (round rod type products), high-frequency quenching needs to use the upper and lower centers of the machine tool for clamping, and the upper and lower centers are respectively tightly pressed into the center holes at the upper and lower ends of the workpiece, and then the parts are processed. Since the upper and lower centers of the machine tool are rigidly pressed, the workpiece is prone to deformation during processing, which affects the clamping tightness and further affects the size and precision of the workpiece. CONTENT OF THE UTILITY MODEL

[0004] To solve the above problems, that is, the problem that the hinge edge type product is prone to deformation during quenching, the utility model provides a high-frequency quenching spring center device, which comprises a center body, an installation cavity is formed in the top end of the center body, a spring is installed in the installation cavity, a pad is arranged at the top end of the spring, and the top end of the spring abuts against the pad. The machine center extends into the installation cavity and abuts against the pad.

[0005] The utility model further provides that a screw is threadedly connected to the side wall of the center body, one end of the screw extends into the installation cavity, and a limiting groove is formed in the side wall of the machine center corresponding to the screw.

[0006] The utility model further provides that the two limiting grooves are symmetrically arranged about the axis of the machine center.

[0007] The utility model has the advantages that:

[0008] 1. The spring and the limiting groove cooperate to automatically adjust the clamping position of the center device according to the stress after the workpiece is heated and expanded, so that the stress on the workpiece is more reasonable, and the deformation of the workpiece caused by the stress is reduced.

[0009] 2. The device has simple structure, is convenient to install and disassemble, has relatively light weight, and can be installed and disassembled by the operator alone. DRAWINGS

[0010] Figure 1 The structure of the utility model is shown in the drawing.

[0011] Figure 2 A-A direction cross-sectional view is shown.

[0012] Figure 3 The working state reference diagram is shown.

[0013] Figure 4 The structure schematic diagram of the machine tool center is shown.

[0014] Reference signs: 1, center body; 11, installation cavity; 111, spring; 112, pad plate; 12, screw; 2, machine tool center; 21, limiting groove; 3, workpiece; 4, fixed center. DETAILED DESCRIPTION

[0015] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application.

[0016] The utility model provides a kind of high frequency quenching spring 111 center device, including center body 1, the center body 1 is set to cylindrical, and its bottom end is integratedly connected center.

[0017] The top end of center body 1 is provided with installation cavity 11, and the diameter of installation cavity 11 is the same as the diameter of machine tool center 2, and spring 111 is installed in installation cavity 11, the bottom end of spring 111 abuts with the bottom end of installation cavity 11, and circular pad plate 112 is also provided in installation cavity 11, and pad plate 112 is provided at the top end of spring 111 and abuts with spring 111.

[0018] Machine tool center 2 is arranged in installation cavity 11, and abuts with pad plate 112.

[0019] Two screws 12 are threadedly connected on the side wall of center body 1, one end of screw 12 is arranged in installation cavity 11, two screws 12 are symmetrically arranged about the axis of installation cavity 11, two limiting grooves 21 are arranged on the side wall of machine tool center 2, two limiting grooves 21 are arranged corresponding to two screws 12, and the end of screw 12 arranged in installation cavity 11 is arranged in limiting groove 21 to limit the up-down movement and rotation of machine tool center 2.

[0020] When used, the device needs to be used with fixed center 4, that is, the device is tightly arranged on the top end of workpiece 3, and fixed center 4 is arranged on the bottom end of workpiece 3.

[0021] When the workpiece 3 is heated and expanded, the expansion force generated thereby pushes the top body 1 to move upward, thereby compressing the spring 111 in cooperation with the base plate 112 and the machine tool center 2, so that the workpiece 3 has a certain expansion space, and the counterforce generated by the compression of the spring 111 can also better act on the workpiece 3 to ensure the clamping force.

[0022] In summary, the spring 111 cooperates with the limiting groove 21, so that after the workpiece 3 is heated and expanded, the center device automatically adjusts the clamping position according to the stress, so that the stress on the workpiece 3 is more reasonable, thereby reducing the deformation of the workpiece 3 due to stress. The device has the advantages of simple structure, convenient installation and disassembly, light self-weight, and the operator can install and disassemble it alone.

[0023] Although the utility model has been described with reference to the preferred embodiments, various improvements can be made and equivalent parts can be replaced without departing from the scope of the utility model, and in particular, the technical features mentioned in each embodiment can be combined in any way as long as there is no structural conflict. The utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

[0024] In the description of the utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and is not intended to indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In addition, it should be noted that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] The term "includes" or any other similar term is intended to cover non-exclusive inclusion, so that the process, article or equipment / device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in the process, article or equipment / device.

[0027] Thus far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the protection scope of the utility model is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without deviating from the principles of the utility model, and the technical schemes after these changes or replacements will all fall within the protection scope of the utility model.

Claims

1. A high-frequency quenching spring tip device, characterized in that: The device includes a center body (1), which has a mounting cavity (11) at its top end. A spring (111) is installed in the mounting cavity (11), and a pad (112) is provided at the top end of the spring (111), with the top end of the spring (111) abutting against the pad (112). The machine tool center (2) extends into the mounting cavity (11) and abuts against the pad (112).

2. The high-frequency quenching spring tip device according to claim 1, characterized in that: A screw (12) is threaded onto the side wall of the center body (1), and one end of the screw (12) extends into the mounting cavity (11); a limiting groove (21) is formed on the side wall of the machine tool center (2) corresponding to the screw (12).

3. The high-frequency quenching spring tip device according to claim 2, characterized in that: There are two limiting grooves (21), and the two limiting grooves (21) are symmetrically arranged about the axis of the machine tool tip (2).

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