CN216639571U

CN216639571U - Positioning fixture for fastener tempering furnace

Info

Publication number: CN216639571U
Application number: CN202123006970.7U
Authority: CN
Inventors: 任雪飞; 邓勇; 李春花
Original assignee: Yuanfang High Tech Equipment Parts Co ltd
Current assignee: Yuanfang High Tech Equipment Parts Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-05-31
Anticipated expiration: 2031-12-01

Abstract

The utility model provides a positioning fixture for a fastener tempering furnace, which comprises a base, wherein a supporting column is arranged at the top of the base, a plurality of positioning plates are arranged on the supporting column at intervals along the axial direction of the supporting column, the positioning plates are rotatably connected with the supporting column and are in strip shapes, a plurality of positioning holes for placing fasteners are arranged at two ends of each positioning plate, and detachable bushings are arranged in the positioning holes. The utility model can avoid the situation that the hardenability of the fasteners cannot meet the requirement due to stacking, and can improve the product quality.

Description

Positioning fixture for fastener tempering furnace

Technical Field

The utility model relates to the technical field of tempering, in particular to a positioning fixture for a fastener tempering furnace.

Background

The fastener (especially the bolt, it is made up of head and threaded spindle, need to cooperate with nut), it is a kind of mechanical part used for fastening connection and applied very extensively. Tempering is a metal heat treatment process in which the quenched workpiece is reheated to a suitable temperature below the lower critical temperature Ac1, and is cooled in air or a medium such as water, oil and the like after heat preservation for a period of time, or the quenched alloy workpiece is heated to a suitable temperature, is heat preserved for a period of time, is then slowly or rapidly cooled, and is tempered at a low temperature, so as to maintain high hardness and wear resistance of the quenched workpiece and reduce quenching residual stress and brittleness.

The traditional fastener tempering method is characterized in that the fasteners are stacked in order and placed in a furnace for tempering, the fasteners are easily stacked together due to collision and shaking in the furnace tempering process, the hardenability of the stacked fasteners cannot be reached, hardness soft points are easily generated, further, warping deformation is generated, and the product quality is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a positioning fixture for a fastener tempering furnace, which can avoid the situation that the hardenability of fasteners cannot meet the requirement due to stacking of the fasteners and improve the product quality.

The embodiment of the utility model is realized by the following technical scheme:

the utility model provides a positioning fixture for fastener tempering furnace, includes the base, and the top of base is equipped with the support column, is equipped with a plurality of locating plates along its axial interval on the support column, and the locating plate rotates with the support column to be connected and the locating plate is the bar form, and the both ends of locating plate all are equipped with a plurality of locating holes that are used for placing the fastener, are equipped with the detachable bush in the locating hole.

Optionally, the top of locating plate is equipped with the limiting plate, is equipped with a plurality of mounting holes that correspond with the locating hole position on the limiting plate, the top fixed connection of bush is in the inside of mounting hole.

Optionally, the limiting plate is connected with the positioning plate through at least one screw.

Optionally, the below of locating plate is equipped with the gear, and the center of gear is equipped with the connecting hole, the connecting hole with support column fixed connection, one side of gear is equipped with rather than the rack of meshing, the top fixedly connected with guide arm of rack, the guide arm with wear to locate with sliding on the locating plate, the top of guide arm runs through the top of locating plate and is connected with the dog, the cover is equipped with the spring on the guide arm, the one end and the rack butt of spring, the other end of spring with the locating plate butt.

Optionally, the number of the positioning plates is three, and eight positioning holes are respectively arranged at two ends of each positioning plate.

Optionally, the base is in a shape of a disk, and a weight block is disposed on the top of the base.

Optionally, two ends of the positioning plate at the top of the support column are provided with hanging rings.

The utility model has at least the following advantages and beneficial effects:

1. according to the utility model, the fasteners are placed through the positioning holes, so that the fasteners are separated from each other, mutual stacking is avoided, and the hardenability of each fastener is ensured to meet the requirement.

2. Through changing the bush of different internal diameters, can adapt to the fastener of different diameters, improve application scope, it is more convenient to use.

3. The locating plate rotates with the support column to be connected and the locating plate is the bar form for can make the locating plate that is located the below spill through rotating the locating plate, conveniently place the fastener.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

FIG. 1 is a cross-sectional view of a positioning fixture for a fastener tempering furnace provided by the utility model;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view of the overall structure of the bushing and the limiting plate;

icon: 1-base, 2-support column, 3-positioning plate, 4-bushing, 5-limiting plate, 6-screw, 7-gear, 8-rack, 9-guide rod, 10-spring, 11-stop block, 12-counterweight block, 13-hoisting ring, 14-bearing, 15-cover plate and 16-fastener.

Detailed Description

As shown in fig. 1-3, a positioning fixture for fastener tempering furnace, includes base 1, and base 1 is discoid, improves stability, and the top of base 1 is equipped with balancing weight 12, and balancing weight 12 can make whole anchor clamps focus be located the bottom, further improves stability, avoids empting in the tempering furnace.

The top of base 1 is equipped with support column 2, is equipped with a plurality of locating plates 3 along its axial interval on the

support column

2, and 3 both ends of locating plate that are located the 2 tops of support column are equipped with rings 13, and rings 13 are convenient for put into tempering furnace or take out from the tempering furnace through lifting by crane equipment with this anchor clamps.

Both ends of the positioning plate 3 are provided with a plurality of positioning holes for placing fasteners 16 (specifically, bolts in the present invention), specifically, in the present embodiment, the number of the positioning plates 3 is three, and both ends of each positioning plate 3 are respectively provided with eight positioning holes, so that forty-eight fasteners 16 can be clamped at a time, and the production efficiency is improved. Furthermore, it should be noted that the present invention positions the fasteners 16 through the locating holes so that each fastener 16 is separated from each other, thereby avoiding stacking and ensuring the desired hardenability of each fastener 16.

Be equipped with detachable bush 4 in the locating hole, through the bush 4 of changing different internal diameters, can adapt to the fastener 16 of different diameters, improve application scope, it is more convenient to use. It will be readily appreciated that the inner diameter of the bush 4 is greater than the diameter of the fastener 16, to avoid the fastener 16 engaging the inner wall of the bush 4 and thereby affecting the tempering effect.

In this embodiment, the top of locating plate 3 is equipped with limiting plate 5, and limiting plate 5 is connected with locating plate 3 through at least one screw 6, is equipped with a plurality of mounting holes that correspond with the locating hole position on the limiting plate 5, and the top fixed connection of bush 4 is in the inside of mounting hole.

It should be noted that, during the manufacturing, the bushing 4 and the limiting plate 5 can be regarded as a whole, that is, the bushing 4 and the limiting plate 5 with the same inner diameter can be fixed by welding or by threaded connection; and then another inner diameter bushing 4 is fixed with the limiting plate 5, so that a plurality of sets of limiting plates 5 and bushings 4 are manufactured, the difference between each set of limiting plates 5 and bushings 4 is only that the inner diameters of the bushings 4 are different, and the limiting plates 5 and the bushings 4 can be adapted to the whole body if fasteners 16 with different diameters need to be clamped in use. In addition, all the bushings 4 can be replaced at one time only by detaching the screws 6 for connecting the limiting plates 5 and the positioning plates 3 during replacement, and the replacement is simple and quick.

The positioning plate 3 is rotatably connected with the support column 2, and the positioning plate 3 is in a strip shape, so that the positioning plate 3 positioned below can be leaked out by rotating the positioning plate 3, and a fastener 16 can be conveniently placed; in the embodiment, the positioning plate 3 is connected with the supporting column 2 through a bearing 14, and cover plates 15 are arranged above and below the bearing 14.

The below of locating plate 3 is equipped with gear 7, the center of gear 7 is equipped with the connecting hole, connecting hole and support column 2 fixed connection, one side of gear 7 is equipped with rather than the rack 8 of meshing, the top fixedly connected with guide arm 9 of rack 8, guide arm 9 wears to locate on locating plate 3 with sliding, the top of guide arm 9 runs through locating plate 3's top and is connected with dog 11, the cover is equipped with spring 10 on the guide arm 9, spring 10's one end and the 8 butt of rack, spring 10's the other end and the 3 butt of locating plate.

When the positioning plate is used, the positioning plate 3 can be kept fixed and cannot rotate through the mutual meshing of the rack 8 and the gear 7, the fastener 16 is convenient to place, the positioning plate 3 is prevented from rotating in the hoisting process, when the positioning plate 3 needs to be rotated, the rack 8 only needs to be pulled upwards to separate the rack 8 from the gear 7, the positioning plate 3 can be rotated, after the positioning plate is rotated in place, the rack 8 is loosened to enable the rack 8 and the gear 7 to be meshed, and the positioning plate 3 can be kept fixed, so that the operation is simple and convenient.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a positioning fixture for fastener tempering furnace which characterized in that: including base (1), the top of base (1) is equipped with support column (2), is equipped with a plurality of locating plates (3) along its axial interval on support column (2), and locating plate (3) rotate with support column (2) and are connected and locating plate (3) and be the bar form, and the both ends of locating plate (3) all are equipped with a plurality of locating holes that are used for placing fastener (16), are equipped with detachable bush (4) in the locating hole.

2. The positioning fixture for the fastener tempering furnace according to claim 1, characterized in that: the top of locating plate (3) is equipped with limiting plate (5), is equipped with a plurality of mounting holes that correspond with the locating hole position on limiting plate (5), the top fixed connection of bush (4) is in the inside of mounting hole.

3. The positioning fixture for the fastener tempering furnace according to claim 2, characterized in that: the limiting plate (5) is connected with the positioning plate (3) through at least one screw (6).

4. The positioning fixture for the fastener tempering furnace according to claim 1, characterized in that: the below of locating plate (3) is equipped with gear (7), and the center of gear (7) is equipped with the connecting hole, the connecting hole with support column (2) fixed connection, one side of gear (7) is equipped with rather than rack (8) of meshing, top fixedly connected with guide arm (9) of rack (8), and guide arm (9) wear to locate with sliding on locating plate (3), the top of guide arm (9) runs through the top of locating plate (3) and is connected with dog (11), and the cover is equipped with spring (10) on guide arm (9), the one end and the rack (8) butt of spring (10), the other end of spring (10) with locating plate (3) butt.

5. The positioning fixture for the fastener tempering furnace according to claim 1, characterized in that: the number of the positioning plates (3) is three, and eight positioning holes are formed in two ends of each positioning plate (3).

6. The positioning fixture for the fastener tempering furnace according to claim 1, characterized in that: the base (1) is disc-shaped, and a balancing weight (12) is arranged at the top of the base (1).

7. The positioning fixture for the fastener tempering furnace according to claim 1, characterized in that: and hoisting rings (13) are arranged at two ends of the positioning plate (3) positioned at the top of the supporting column (2).