CN216808928U

CN216808928U - Special double-frequency quenching clamp

Info

Publication number: CN216808928U
Application number: CN202123195441.6U
Authority: CN
Inventors: 兰勇; 高伟; 崔海峰; 王文明; 宋伟
Original assignee: Baosteel Roll Science & Technology Co ltd
Current assignee: Baosteel Roll Science & Technology Co ltd
Priority date: 2021-12-19
Filing date: 2021-12-19
Publication date: 2022-06-24
Anticipated expiration: 2031-12-19

Abstract

The utility model discloses a special double-frequency quenching clamp, which is formed by assembling a clamp bottom lining and a clamp lining through bolts; the clamp bottom lining is provided with a bottom lining lower part, a bottom lining middle part with the inner diameter smaller than that of the bottom lining lower part, and a bottom lining upper part with the outer diameter larger than that of the bottom lining lower part; a bottom lining screw hole is formed on the bottom lining of the clamp; the height of the clamp bottom lining is 100-200 mm; the clamp inner lining is provided with an inner lining lower part, an inner lining middle part with inner diameter and outer diameter smaller than the inner lining lower part, and an inner lining upper part with inner diameter and outer diameter equal to the inner lining lower part; the inner liner of the clamp is provided with a liner screw hole; the height of the clamp lining is 80-160 mm; the outer diameter of the middle part of the lining is 3-9 mm smaller than the inner diameter of the middle part of the bottom lining; the height of the middle part of the lining is 1-3 mm greater than that of the middle part of the bottom lining. The clamp special for double-frequency quenching is light in weight, convenient to assemble and disassemble and capable of improving production efficiency; and the inner lining of the clamp is designed according to products with different specifications, so that the application range of the clamp is greatly improved.

Description

Special double-frequency quenching clamp

Technical Field

The utility model relates to a clamp, in particular to a special clamp for double-frequency quenching.

Background

The roller body of the roller needs to be subjected to induction quenching in order to meet certain surface hardness and hardening layer depth, and the double-frequency quenching is a commonly used quenching mode at present. The double-frequency quenching machine tool is composed of a power frequency power supply and a medium frequency power supply, wherein the power frequency is 50Hz, the medium frequency is 250Hz, the quenching process is firstly carried out by heating to the required diathermy depth from the power frequency, then the medium frequency is carried out by temperature equalization, finally the water spraying quenching is carried out, and the product obtained by the quenching mode has a deeper quenching layer and a good hardness gradient.

With the rapid development of the machine manufacturing industry, the product is updated more and more rapidly, the traditional manufacturing mode is gradually replaced by mechanization and automation, the machine manufacturing system needs higher flexibility to adapt to the change, the focus of flexibility is mainly on two aspects of a machine tool and a tool, and a combined tool clamp becomes the key point of tool flexibility. In order to shorten the auxiliary time in workpiece processing and reduce the labor intensity of workers, the clamping and the disassembly of the tool also need to be mechanized and automated so as to realize quick assembly.

The cross-sectional structure of the existing dual-frequency quenching clamp is shown in fig. 1: the height H 'of the clamp is usually 330-370 mm, the outer diameter phi' of the clamp is usually 350-400 mm, the inner diameter phi 'of the clamp body is usually 200-230 mm, and the inner diameter d' of the clamping part is usually 180-200 mm. The clamp is not enough: (1) the volume is large (mainly the height is high), so that the weight is heavy, the assembly and disassembly are not easy, and the production efficiency is influenced; (2) the clamp is an integrated piece, has a small application range and cannot cover rollers of various specifications.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provides a special double-frequency quenching clamp which is light in weight, convenient to assemble and disassemble and wide in application range.

The technical scheme for realizing the purpose of the utility model is as follows: a dual-frequency quenching special fixture is assembled by a fixture bottom lining and a fixture lining through bolts; the clamp bottom liner is provided with a bottom liner lower part, a bottom liner middle part with an inner diameter smaller than that of the bottom liner lower part, and a bottom liner upper part with an outer diameter larger than that of the bottom liner lower part; the clamp bottom liner is provided with a bottom liner screw hole; the height of the clamp bottom lining is 100-200 mm; the clamp inner liner is provided with an inner liner lower part, an inner liner middle part with inner diameter and outer diameter smaller than those of the inner liner lower part, and an inner liner upper part with inner diameter and outer diameter equal to those of the inner liner lower part; the inner lining of the clamp is provided with an inner lining screw hole; the height of the clamp lining is 80-160 mm; the outer diameter of the middle part of the lining is 3-9 mm smaller than the inner diameter of the middle part of the bottom lining; the height of the middle part of the lining is 1-3 mm greater than that of the middle part of the bottom lining.

The bottom lining screw hole is formed in the middle of the bottom lining of the clamp bottom lining; the lining screw hole is formed in the middle of the lining of the clamp lining.

The height H of the clamp bottom lining is 135-165 mm; the height of the clamp lining is 110-130 mm.

The outer diameter of the lower part of the lining is 1-3 mm smaller than the inner diameter of the lower part of the bottom lining.

The outer diameter of the upper part of the lining is 1-3 mm smaller than the inner diameter of the upper part of the bottom lining; the height of the upper part of the liner is equal to that of the upper part of the bottom lining.

The utility model has the following positive effects: (1) the dual-frequency quenching special fixture disclosed by the utility model has the advantages that the structure of the fixture is optimally designed, a combined assembly mode is adopted, and compared with the existing fixture, the height of the fixture can be reduced, so that the weight of the fixture is reduced, the assembly and disassembly are convenient, the operation strength is greatly reduced, and the production efficiency is improved. (2) The clamp bottom liner of the special double-frequency quenching clamp is a product with fixed specification, and the clamp lining is designed according to products with different specifications, so that the application range of the clamp is greatly enlarged.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of a conventional dual-frequency quenching jig.

Fig. 2 is a schematic cross-sectional structure view of the dual-frequency quenching special fixture of the present invention.

FIG. 3 is a schematic cross-sectional view of a clamping base according to the present invention.

FIG. 4 is a schematic cross-sectional view of the clamp liner of the present invention.

Detailed Description

(example 1)

Referring to fig. 2, the dual-frequency quenching special fixture of the embodiment is formed by assembling a fixture bottom liner 1 and a fixture lining 2 through bolts 3.

Referring to fig. 3, the fixture bottom liner 1 has a bottom liner lower portion 11, a bottom liner middle portion 12 and a bottom liner upper portion 13, wherein the bottom liner middle portion 12 is provided with bottom liner screw holes 1-1.

The lower portion 11 of the bottom lining of this embodiment has an external diameter of 370mm, an internal diameter of 330mm and a height of 72 mm.

The central portion 12 of the bottom lining of this embodiment has an outer diameter of 370mm, an inner diameter of 310mm and a height of 38 mm.

In this embodiment, the outer diameter Φ (equivalent to the outer diameter of the jig for double frequency quenching) of the upper portion 13 of the bottom lining is 385mm, the inner diameter is 330mm, and the height is 40 mm.

That is, the height H of the jig base 1 of the present embodiment (corresponding to the height of the jig dedicated to double-frequency quenching) is 150 mm.

Referring to fig. 4, the clamp liner 2 has a liner lower portion 21, a liner middle portion 22, and a liner upper portion 23, the liner middle portion 22 having liner threaded holes 2-1.

In this embodiment, the outer diameters of the lower liner portion 21 and the upper liner portion 23 are 328mm, the inner diameters phi (equivalent to the inner diameter of the main body of the dual-frequency quenching jig) are 216mm, and the heights thereof are 40 mm.

The inner liner middle portion 22 of this embodiment has an outer diameter of 304mm, an inner diameter d (equivalent to the inner diameter of the clamping portion of the jig for double frequency quenching) of 196mm, and a height of 40 mm.

That is, the height of the jig liner 2 of the present embodiment is 120 mm.

Claims

1. A dual-frequency quenching special fixture is characterized in that: the clamp is formed by assembling a clamp bottom liner (1) and a clamp lining (2) through bolts (3);

the clamp bottom liner (1) is provided with a bottom liner lower part (11), a bottom liner middle part (12) with an inner diameter smaller than that of the bottom liner lower part (11), and a bottom liner upper part (13) with an outer diameter larger than that of the bottom liner lower part (11); the clamp bottom liner (1) is provided with a bottom liner screw hole (1-1); the height of the clamp bottom liner (1) is 100-200 mm;

the clamp liner (2) has a liner lower portion (21), a liner middle portion (22) having an inner diameter and an outer diameter both smaller than the liner lower portion (21), and a liner upper portion (23) having an inner diameter and an outer diameter both equal to the liner lower portion (21); a lining screw hole (2-1) is formed in the clamp lining (2); the height of the clamp lining (2) is 80-160 mm;

the outer diameter of the lining middle part (22) is 3-9 mm smaller than the inner diameter of the bottom lining middle part (12); the height of the lining middle part (22) is 1-3 mm greater than that of the bottom lining middle part (12).

2. The clamp special for double-frequency quenching according to claim 1, characterized in that: the bottom lining screw holes (1-1) are formed in the middle (12) of the bottom lining of the clamp bottom lining (1); the lining screw hole (2-1) is arranged on the middle part (22) of the lining of the clamp (2).

3. The clamp special for double-frequency quenching according to claim 1, characterized in that: the height H of the clamp bottom liner (1) is 135-165 mm; the height of the clamp lining (2) is 110-130 mm.

4. The clamp special for double-frequency quenching according to claim 1, characterized in that: the outer diameter of the lower lining part (21) is 1-3 mm smaller than the inner diameter of the lower bottom lining part (11).

5. The clamp special for double-frequency quenching according to claim 1, characterized in that: the outer diameter of the upper lining part (23) is 1-3 mm smaller than the inner diameter of the upper bottom lining part (13); the height of the liner upper part (23) is equal to the height of the bottom lining upper part (13).