Heat treatment clamp for separation blade

Abstract

The utility model discloses a catch heat treatment clamp, which comprises a bolt, a lower pressing plate, an upper pressing plate and a locking nut, the lower pressing plate and the upper pressing plate are sleeved in the bolt, the locking nut is used for locking the lower pressing plate and the upper pressing plate, and catches to be subjected to heat treatment are stacked between the lower pressing plate and the upper pressing plate. When the heat treatment device is used, the lower pressing plate is firstly sleeved in the bolt, then the separation blades needing heat treatment are sequentially sleeved in the bolt and stacked on the lower pressing plate, and the upper pressing plate is sleeved in the bolt and pressed on the separation blades; then the locking nuts are screwed into the bolts, the upper pressing plate and the lower pressing plate are locked together, and finally the tool and the heat treatment part are integrally placed into a heat treatment furnace to be subjected to heat treatment. The utility model has the advantages of simple and firm structure, oxidation resistance and strong practicability; when the clamp is used for heat treatment of parts, heat treatment deformation of the parts can be prevented, and heat treatment quality of annular sheet parts is improved.

Description

Technical Field

[0001] The utility model relates to the field of heat treatment equipment, in particular to a baffle heat treatment fixture. Background Art

[0002] The baffle is made of 30CrMnSiA, and heat treatment requires a hardness of (35-45) HRC and a warpage of ≤0.1mm. This product is a stepped annular sheet with a thickness of only 3.6mm. Using traditional clamping methods for heat treatment, flatness control is difficult, seriously restricting production.

[0003] Therefore, how to solve the problems of deformation of baffle parts during heat treatment and inconsistent heat treatment quality is an urgent problem to be solved in the heat treatment production process. Summary of the Invention

[0004] In view of the above problems, the utility model provides a baffle heat treatment fixture, which reduces the heat treatment deformation of the baffle parts and improves the heat treatment quality of the baffle.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows:

[0006] A baffle heat treatment fixture includes a bolt, a lower pressing plate, an upper pressing plate and a locking nut. The lower pressing plate and the upper pressing plate are inserted into the bolt. The locking nut is used to lock the lower pressing plate and the upper pressing plate. The baffle to be heat treated is stacked between the lower pressing plate and the upper pressing plate.

[0007] Furthermore, the material of the lower pressing plate and the upper pressing plate are both Cr25Ni20, and the maximum thickness is 20 mm.

[0008] Furthermore, a plurality of circular holes are evenly distributed in the middle of the lower pressing plate and the upper pressing plate, and a plurality of rectangular notches are distributed on the outer circle.

[0009] Furthermore, the specification of the bolt is preferably M30×200 mm (indicates that the nominal diameter of the bolt is 30 mm and the total length of the bolt is 200 mm), and the material of the bolt is preferably Cr25Ni20.

[0010] Furthermore, the material of the locking nut is preferably Cr25Ni20.

[0011] The specific usage of the above-mentioned fixture is as follows:

[0012] (1) First, insert the lower pressure plate into the bolt;

[0013] (2) Insert the baffles that need to be heat treated into the bolts one by one and stack them on the lower pressure plate;

[0014] (3) Insert the upper pressure plate into the bolts and press it onto the baffle;

[0015] (4) Screw the locking nut into the bolt, lock the upper and lower pressure plates together, and finally place the tooling and heat treatment parts as a whole into the heat treatment furnace for heat treatment.

[0016] The beneficial effects of the present invention are:

[0017] The utility model has the advantages of simple structure, firmness, oxidation resistance and strong practicality; adopting the fixture to perform heat treatment on parts can prevent the parts from being deformed during heat treatment and improve the heat treatment quality of annular thin-sheet parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] In the figure: 1, bolt, 2, lower pressure plate, 3, upper pressure plate, 4, lock nut;

[0020] Figure 2 It is a structural diagram of the bolt;

[0021] Figure 3 Schematic diagram of the structure of the upper and lower pressure plates. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings, but the present invention is not limited thereto.

[0023] See also Figure 1 The baffle heat treatment fixture of the present invention includes a bolt 1, a lower pressing plate 2, an upper pressing plate 3 and a locking nut 4. The lower pressing plate 2 and the upper pressing plate 3 are inserted into the bolt 1. The locking nut 4 is used to lock the lower pressing plate 2 and the upper pressing plate 3. The baffle to be heat treated is stacked between the lower pressing plate 3 and the upper pressing plate 2.

[0024] Before using the fixture, first insert the lower pressure plate 2 into the bolt 1, then insert the baffle parts that need to be heat treated into the bolt 1 in turn and stack them on the lower pressure plate 2, then insert the upper pressure plate 3 into the bolt 1 and press it on the top baffle, finally screw the locking nut 4 into the bolt, lock the upper pressure plate 2 and the lower pressure plate 3 together to prevent the baffle from sliding, and then put the fixture and parts as a whole into the heat treatment furnace for heat treatment.

Claims

1. A baffle heat treatment fixture, characterized in that: It includes bolts, a lower pressing plate, an upper pressing plate and a locking nut. The lower pressing plate and the upper pressing plate are inserted into the bolts. The locking nut is used to lock the lower pressing plate and the upper pressing plate. A baffle to be heat treated is stacked between the lower pressing plate and the upper pressing plate. The material of the lower pressing plate and the upper pressing plate are both Cr25Ni20, with a maximum thickness of 20mm; A plurality of circular holes are evenly distributed in the middle of the lower pressing plate and the upper pressing plate, and a plurality of rectangular notches are distributed on the outer circle.

2. The baffle heat treatment fixture according to claim 1, characterized in that: The specification of the bolt is M30×200mm, and the material of the bolt is Cr25Ni20.

3. The baffle heat treatment fixture according to claim 1, characterized in that: The material of the locking nut is Cr25Ni20.

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