CN202297702U

CN202297702U - Adjustable quenching fixture

Info

Publication number: CN202297702U
Application number: CN 201120412944
Authority: CN
Inventors: 令狐荣奎; 贾师强; 田伟枫
Original assignee: China Academy of Launch Vehicle Technology CALT; Capital Aerospace Machinery Co Ltd
Current assignee: China Academy of Launch Vehicle Technology CALT; Capital Aerospace Machinery Co Ltd
Priority date: 2011-10-26
Filing date: 2011-10-26
Publication date: 2012-07-04
Anticipated expiration: 2021-10-26

Abstract

The utility model belongs to a quenching technology, and in particular discloses an adjustable quenching fixture. The adjustable quenching fixture comprises two groups of four U-shaped block fixtures, wherein the U-shaped fixtures are provided with U-shaped grooves. The adjustable quenching fixture also comprises U-shaped bolts, wherein each U-shaped bolt consists of hollow pipes; the U-shaped mouth directions of each group of U-shaped bolts are communicated, and the hollow pipes at the two sides of each group of U-shaped bolts are respectively located in the U-shaped grooves of the U-shaped fixtures; the two groups of U-shaped bolts are crossly placed; a nut block is fixedly arranged at the upper end of each U-shaped block fixture; each nut block is provided with a bolt hole; and fastening bolts are arranged in the bolt holes. According to the utility model, the adjustable quenching fixture can not cause overlarge deformation of a workpiece in the quenching clamping process, thus the operation is simple and convenient, and the universality is strong; and a boss is designed on each U-shaped groove, so that the contact area of each U-shape bolt and the bottom surface of each U-shaped groove is reduced, all the U-shaped bolts are heated uniformly in the thermal treatment process, and the deformation of the clamped workpiece can not be caused.

Description

Adjustable quenching fixture

Technical field

The utility model belongs to quenching technology, is specifically related to a kind of anchor clamps.

Background technology

Existing quenching method comprises following two kinds of methods: 1. point was welded on the steel plate identical with the workpiece size size before workpiece quenched; 2. several workpiece intersect and tie down with the steel wire encircling.

Above-mentioned two kinds of methods have very big shortcoming, and the first method waste material also is prone to make workpiece to be destroyed because of spot welding; Steel wire was prone to produce fracture through pyroprocessing when second method was quenched, and caused distortion thereby workpiece is scattered.

Therefore need the anchor clamps of a kind of usefulness of quenching of invention, thereby realize part simple and efficient when quenching.

Summary of the invention

The purpose of the utility model is to provide a kind of adjustable quenching fixture that can not cause workpiece excessive deformation, adjustable, convenient mounting and clamping, suitable various rod type workpiece.

The technical scheme of the utility model is following:

A kind of adjustable quenching fixture, it comprises 2 groups 4 U type piece anchor clamps, said U type piece anchor clamps are provided with U type groove; Described adjustable quenching fixture also comprises U-bolt; This U-bolt is made up of open tube, and described U-bolt has several, is divided into two groups; The U mouth direction of every group U-bolt communicates, and the open tube of its both sides lays respectively in the U type groove of U type piece anchor clamps; Two groups of U-bolts intersect to be placed; Each U type piece anchor clamps upper end is fixed with nut block, and this nut block upper bolt hole is provided with holding bolt in the bolt hole.

In above-mentioned adjustable quenching fixture, described U-bolt is 6～10.

In above-mentioned adjustable quenching fixture, described nut block is welded on the upper end of U type piece anchor clamps.

The beneficial effect of the utility model is: the adjustable quenching fixture of the utility model can not cause the workpiece excessive deformation in the quenching clamping process, simple to operation, highly versatile.At U type groove design boss, reduce the contact area of U-bolt and U type groove bottom, make that all U-bolts are heated evenly in the heat treatment process, workpiece deformation that can the clamping of careless one-tenth.

Description of drawings

Fig. 1 is the U-bolt synoptic diagram;

Fig. 2 is nut block and holding bolt scheme of installation;

Fig. 3 is the adjustable quenching fixture synoptic diagram of the utility model;

Among the figure: 1.U type bolt; 2. nut block; 3. holding bolt; 4.U type piece anchor clamps; 5.U type groove; 6. bolt hole.

Embodiment

Below in conjunction with accompanying drawing and specific embodiment the utility model is done further explain.

U-bolt 1 as shown in Figure 1, it is made up of open tube.Entire structure is the U type.

As shown in Figure 2, described U type piece anchor clamps 4 are the rectangular parallelepiped of vertically placing, and are processed with U type groove 5 in the upper end, and the groove width of this U type groove 5 is greater than the caliber of above-mentioned U-bolt 1.On above-mentioned U type piece anchor clamps 4, place nut block 2, be processed with bolt hole 6 on this nut block 2, in the middle of the present embodiment, nut block 2 is processed into rectangular block, its size equates with the cross-sectional sizes of U type piece anchor clamps 4.During installation, the seamed edge inverse bonding that contacts of nut block 2 and U type piece anchor clamps 4 is connect cut, utilize the mode of welding that it is welded together.

As shown in Figure 3, the nut block 2 that above-mentioned welding is good is made 4 with U type piece anchor clamps 4.Again 6 U-bolts 1 are divided into two groups, the both sides of three U-bolts 1 of every group are passed the U type groove 5 on the U type piece anchor clamps 4 respectively.Two groups of U-bolts 1 intersect to be placed.Holding bolt 3 is screwed in respectively in the nut block 2 through bolt hole 6, and the bolt that is tightened.Kill for bolts and nuts piece after preventing thermal treatment, oildag capable of using evenly is applied on the screw thread when being selected into bolt, the phenomenon that bolts and nuts are killed after the reduction thermal treatment.

All U-bolts 1 are heated evenly in the heat treatment process in order to make; The bottom surface that U type piece anchor clamps 4 contact with U-bolt 1 will be reduced contact area as much as possible; Therefore can on the bottom surface of U type groove 5, process a boss; Nethermost U-bolt 1 is placed on the boss, under the prerequisite that guarantees bearing resistance, reduces the contact area of U-bolt and bottom surface.

Claims

1. adjustable quenching fixture, it is characterized in that: it comprises 2 groups 4 U type piece anchor clamps (4), said U type piece anchor clamps (4) are provided with U type groove (5); Described adjustable quenching fixture also comprises U-bolt (1); This U-bolt (1) is made up of open tube, and described U-bolt (1) has several, is divided into two groups; The U mouth direction of every group U-bolt (1) communicates, and the open tube of its both sides lays respectively in the U type groove (5) of U type piece anchor clamps (4); Two groups of U-bolts (1) intersect to be placed; Each U type piece anchor clamps (4) upper end is fixed with nut block (2), and this nut block (2) upper bolt hole (6) is provided with holding bolt (3) in the bolt hole (6).

2. adjustable quenching fixture as claimed in claim 1 is characterized in that: described U-bolt (1) is 6～10.

3. adjustable quenching fixture as claimed in claim 1 is characterized in that: described nut block (2) is welded on the upper end of U type piece anchor clamps (4).