CN220079134U

CN220079134U - Novel dish spring heat treatment anchor clamps

Info

Publication number: CN220079134U
Application number: CN202321690068.8U
Authority: CN
Inventors: 徐杰; 袁大传; 徐扬天
Original assignee: SHANGHAI HEGONG DISC SPRING MANUFACTURING CO LTD
Current assignee: SHANGHAI HEGONG DISC SPRING MANUFACTURING CO LTD
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2023-11-24
Anticipated expiration: 2033-06-29

Abstract

The utility model discloses a novel disc spring heat treatment clamp, which comprises a disc spring group formed by overlapping a plurality of disc springs, wherein the clamp comprises an upper clamp, a lower clamp and a connecting device, the centers of the upper clamp and the lower clamp are respectively provided with a connecting hole, the connecting device is matched with the connecting holes to connect and fix the upper clamp and the lower clamp, and a plurality of upper pressing strips are uniformly arranged on the periphery of the upper clamp; a plurality of lower pressing strips are equally arranged on the circumference of the lower clamp; the distance from the end point of the included angle formed between the adjacent upper pressing strips to the center point of the upper clamp is smaller than the distance from the inner diameter of the belleville spring to the center point of the upper clamp; the distance from the end point of the included angle formed between the adjacent lower pressing strips to the center point of the lower clamp is smaller than the distance from the inner diameter of the belleville spring to the center point of the lower clamp. The utility model ensures that the hardness of the quenched belleville springs is more uniform; the consistency of the disc springs in the disc spring group is better, and the quality of the disc springs is improved.

Description

Novel dish spring heat treatment anchor clamps

Technical Field

The utility model relates to a processing device of a spring, in particular to a novel disc spring heat treatment clamp.

Background

The spring is used as a basic component in mechanical equipment, and is applied to various fields in modern industry, in particular to the fields of mechanical industry, railway industry, building industry, nuclear power industry and the like. The demand for belleville spring devices is also increasing; in the prior art, when the disc springs are subjected to heat treatment, the upper clamp and the lower clamp are generally flat whole round clamps, threaded holes are formed in the middle parts of the upper clamp and the lower clamp, the disc springs to be subjected to heat treatment are overlapped between the upper clamp and the lower clamp and are fixedly connected through bolts, the disc springs are quenched after being placed into an induction furnace for heating, but when the conventional heat treatment clamp is used, quenching liquid can only permeate inwards through the outer diameter parts of the disc springs, the inner diameter parts of the disc springs cannot be rapidly contacted with quenching liquid, so that the difference of cooling speeds of the inner diameter parts and the outer diameter parts of the disc springs can be relatively large, the hardness of a single disc spring is uneven, the consistency between different disc springs in a set of disc spring groups subjected to simultaneous quenching is poor (for example, the upper disc spring and the lower disc spring are easier to contact with the quenching liquid, and when the disc spring groups are quenched, the cooling speeds of the upper disc spring and the lower disc spring are faster than those of the disc springs clamped in the middle part), and the force characteristic curve of the disc springs is influenced.

Disclosure of Invention

In view of this, the technical problems to be solved by the present utility model are: the novel disc spring heat treatment clamp with reasonable structural design is provided, and the problems of uneven hardness and poor consistency of the disc spring after quenching the disc spring are prevented.

In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:

the novel disc spring heat treatment clamp comprises a disc spring group formed by overlapping a plurality of disc springs, wherein the clamp comprises an upper clamp, a lower clamp and a connecting device, connecting holes are respectively formed in the centers of the upper clamp and the lower clamp, the connecting device is matched with the connecting holes to connect and fix the upper clamp and the lower clamp, and a plurality of upper pressing strips are uniformly arranged on the upper clamp in the circumferential direction; a plurality of lower pressing strips are equally arranged on the circumference of the lower clamp; the distance from the end point of the included angle formed between the adjacent upper pressing strips to the center point of the upper clamp is smaller than the distance from the inner diameter of the belleville spring to the center point of the upper clamp; the distance from the end point of the included angle formed between the adjacent lower pressing strips to the center point of the lower clamp is smaller than the distance from the inner diameter of the belleville spring to the center point of the lower clamp.

Preferably, the upper clamp and the lower clamp are identical and symmetrically arranged.

Preferably, the upper and lower clamps are respectively Zhou Xiangliu equally divided.

Preferably, the connecting device is a bolt or a nut.

When the disc spring quenching device is used, a plurality of disc springs (usually 3-50 disc springs) are stacked between the upper clamp and the lower clamp, the upper clamp is matched with the lower clamp and fixedly connected through bolts and nuts, the disc spring groups fixed by the upper clamp and the lower clamp are subjected to quenching treatment after being placed into a heat induction furnace to be heated to a required temperature, quenching liquid enters the space between the included angle between adjacent upper pressing strips and the inner diameter of the disc spring groups, so that the cooling speeds of the inner diameter and the outer diameter of the disc spring groups are kept consistent, the hardness of the inner diameter and the outer diameter of a single disc spring is more uniform, and the consistency of the disc springs in the same group is better.

By the technical scheme, the utility model has the beneficial effects that:

compared with the prior art, a plurality of perforations are formed between the centers of the upper clamp and the lower clamp and the disc spring group, so that quenching liquid can conveniently enter and contact with the inner diameter of the disc spring group rapidly, and can conveniently permeate from the inner diameter and the outer diameter of the disc spring group rapidly inwards, so that the hardness of the disc spring is more uniform; the consistency of the disc springs in the disc spring group is better, and the quality of the disc springs is improved.

Drawings

FIG. 1 is a schematic top view of the present utility model;

fig. 2 is a schematic view of the sectional structure of fig. 1 A-A.

Detailed Description

For a further understanding of the nature and aspects of the present utility model, reference should be made to the following detailed description of the utility model and the accompanying drawings.

1-2, a novel disc spring heat treatment fixture comprises a disc spring group 50 formed by overlapping a plurality of disc springs, wherein the fixture comprises an upper fixture 10, a lower fixture 20 and connecting devices which are identical and symmetrically arranged, the centers of the upper fixture 10 and the lower fixture 20 are respectively provided with a connecting hole, the connecting devices comprise bolts 30 and nuts 40, the bolts 30 and the nuts 40 are matched with the connecting holes to connect and fix the upper fixture 10 and the lower fixture 20, and six upper pressing strips 101 are arranged on the circumference of the upper fixture 10 in six equal parts; six lower pressing strips are equally divided into 20 weeks Xiang Liu of the lower clamp; the distance from the end point D of the included angle formed between the adjacent upper pressing strips to the center point of the upper clamp is smaller than the distance from the inner diameter E of the belleville spring to the center point (the connecting hole) of the upper clamp 10; the distance from the end point of the included angle formed between the adjacent lower pressing strips to the center point of the lower clamp is smaller than the distance from the inner diameter of the belleville spring to the center point of the lower clamp.

When the disc spring quenching device is used, a plurality of disc springs (usually 3-50 disc springs) are stacked between an upper clamp and a lower clamp, the upper clamp 10 is matched with the lower clamp 20 and is fixedly connected through bolts 30 and nuts 40, the disc spring group 50 fixed by the upper clamp and the lower clamp is subjected to quenching treatment after being placed into a thermal induction furnace to be heated to a required temperature, and quenching liquid enters a space at the inner diameter of the disc spring group 50 through an included angle between adjacent upper pressing strips 101, so that the cooling speeds at the inner diameter and the outer diameter of the disc spring group are kept consistent, and the hardness at the inner diameter and the outer diameter of a single disc spring is more uniform, and the consistency of the disc springs in the same group is better; perforations are formed between the centers of the upper clamp 10 and the lower clamp 20 and the disc spring group 50, so that quenching liquid is easier to circulate, the quenching liquid rapidly enters and contacts the inner diameter of the disc spring group 50, the quenching liquid can rapidly permeate inwards from the inner diameter and the outer diameter of the disc spring group 50, and the hardness of the disc spring after quenching is more uniform; the consistency of the disc springs in the disc spring group is better, and the quality of the disc springs is improved.

However, the foregoing description is only one embodiment of the present utility model and is not intended to limit the scope of the utility model, so that all changes that come within the meaning and range of equivalents of the utility model are intended to be embraced therein.

Claims

1. The utility model provides a novel belleville spring heat treatment anchor clamps, includes belleville spring group that a plurality of belleville springs coincide and forms, its characterized in that: the clamp comprises an upper clamp, a lower clamp and a connecting device, wherein connecting holes are respectively formed in the centers of the upper clamp and the lower clamp, the connecting device is matched with the connecting holes to fixedly connect the upper clamp and the lower clamp, and a plurality of upper pressing strips are uniformly arranged on the periphery of the upper clamp; a plurality of lower pressing strips are equally arranged on the circumference of the lower clamp; the distance from the end point of the included angle formed between the adjacent upper pressing strips to the center point of the upper clamp is smaller than the distance from the inner diameter of the belleville spring to the center point of the upper clamp; the distance from the end point of the included angle formed between the adjacent lower pressing strips to the center point of the lower clamp is smaller than the distance from the inner diameter of the belleville spring to the center point of the lower clamp.

2. The novel disc spring heat treatment clamp according to claim 1, wherein the upper clamp and the lower clamp are identical and symmetrically arranged.

3. The novel heat treatment clamp for the belleville springs, as set forth in claim 2, wherein the upper clamp and the lower clamp are respectively Zhou Xiangliu equally spaced.

4. The novel heat treatment clamp for the belleville springs, as set forth in claim 1, wherein the connecting device is a bolt or a nut.