CN216192573U

CN216192573U - Locating rack for heat treatment of shaft workpieces

Info

Publication number: CN216192573U
Application number: CN202122642855.2U
Authority: CN
Inventors: 杨道荣; 李涛
Original assignee: Zhejiang Wanliyang Intelligent Manufacturing Co ltd
Current assignee: Zhejiang Wanliyang Intelligent Manufacturing Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-04-05
Anticipated expiration: 2031-11-01

Abstract

The utility model relates to a positioning frame for heat treatment of shaft workpieces. The utility model provides an axle type is locating rack for work piece thermal treatment, includes the chassis, and the chassis is equipped with two at least parallels and runs through the cooperation groove on chassis along the horizontal direction, be equipped with a plurality of first baffles and a plurality of second baffle that the interval set up from top to bottom on the chassis, the equal array of first baffle and second baffle is equipped with a plurality of stands that upwards extend and be used for the location work piece. The utility model has the advantages of improving the charging amount, improving the production efficiency, reducing the rejection rate and prolonging the service life.

Description

Locating rack for heat treatment of shaft workpieces

Technical Field

The utility model relates to a positioning frame for heat treatment of shaft workpieces.

Background

As shown in fig. 1, the workpiece 100 has a central hole 101, the depth of the central hole 101 exceeds 80mm, and the workpiece 100 needs to be heat-treated, carburized and quenched. In the prior art, a workpiece is generally clamped by a clamping tool, and then the clamping tool and the workpiece are placed into a furnace together for heat treatment. The clamping tool occupies a large space, the furnace charging amount is influenced, and the production efficiency is low.

Disclosure of Invention

The utility model aims to provide a positioning frame for heat treatment of shaft workpieces, which can improve the charging amount and improve the production efficiency.

In order to achieve the purpose, the utility model adopts the following technical scheme: a positioning frame for heat treatment of shaft workpieces comprises a chassis, wherein the chassis is provided with at least two matching grooves which are parallel and penetrate through the chassis along the horizontal direction, the chassis is provided with a plurality of first partition plates and a plurality of second partition plates which are arranged at intervals up and down, the first partition plates and the second partition plates are respectively provided with a plurality of upright posts which extend upwards and are used for positioning the workpieces in an array manner, the upper end face of the chassis is supported with a first partition plate, the chassis is supported with first fixing columns, the middle part of the first partition plate at the lowest side is supported with second fixing columns, at least three first fixing columns are uniformly distributed at the circumferential edge of a bottom plate, the first partition plates and the second partition plates are respectively provided with first matching holes which penetrate through up and down to be matched with the first fixing columns, the middle parts of the first partition plates and the second partition plates are respectively provided with second matching holes which penetrate through up and down to be matched with the second fixing columns, a plurality of first sleeves which are arranged in an up-down stacking manner and a plurality of second sleeves which are arranged in an up-down stacking manner are arranged between the second partition plates and the first partition plates, first sleeve cover is established outside first fixed column, and second sleeve cover is established outside the second fixed column.

The arrangement of at least three first fixing columns and one second fixing column can reduce the lower layer deformation of the positioning frame during heat treatment, and can prolong the service life of the positioning frame. The positioning frame adopts the stand column to position the deep hole of the shaft workpiece, can ensure that the shaft workpiece is in a vertical state, ensure that the workpiece is aligned, can reduce the bending deformation of the workpiece, and reduce the scrappage ratio caused by the bending deformation in the subsequent alignment.

Meanwhile, the positioning frame is composed of at least two layers, more workpieces can be placed, and the matching groove formed in the chassis can be matched with a forklift for use, so that the positioning frame is convenient to carry, the furnace loading amount is further increased, and the production efficiency is improved.

Preferably, a fixing hole for fixing the lower end of the first fixing column is formed in the edge of the upper end face of the chassis, a thread structure matched with the inner wall of the fixing hole and the outer wall of the lower end of the first fixing column is arranged on the inner wall of the fixing hole, a first convex ring extending towards the outside in the circumferential direction is arranged at the position of the deviated lower end of the first fixing column, a second convex ring extending towards the outside in the circumferential direction is arranged at the position of the deviated lower end of the second fixing column, and the lower end of the second fixing column extends into a second matching hole of the first partition plate located at the lowest side.

Only first fixed column is fixed with the chassis, demolish the second baffle of top after, can easily take off the second fixed column, the workman of being convenient for takes away the work piece on the first baffle of downside. The first convex ring and the second convex ring are used for supporting and positioning the first fixing column and the second fixing column respectively.

Preferably, the lower end surface of the first partition plate is provided with a positioning groove with a downward opening, and the first convex ring of the first fixing column is supported on the upper side of the chassis and is positioned in the positioning groove. The positioning groove is matched with the first convex ring to realize the positioning between the chassis and the first partition plate, so that the workpieces are placed more uniformly, and the heat treatment effect is better.

Preferably, the upright column on the first partition plate is integrally formed with the first partition plate, and the upright column on the second partition plate is integrally formed with the second partition plate. The stand and first baffle and second baffle integrated into one piece, the casting of the stand of being convenient for, and the stand can be done longer more thin to fix a position the less axle type work piece of centering bore internal diameter.

Preferably, the cross section of the upright post is in a cross shape or a meter shape, and the outer wall of the upright post is in an arc surface shape. The stand is cross or the rice font, can reduce the area of contact of work piece and stand, is convenient for the work piece to insert on the stand, has the gap simultaneously between stand surface and the work piece, is convenient for flow oil, is convenient for quenching oil circulation. The outer wall of the upright post is an arc surface, so that a workpiece can be effectively positioned, the workpiece is kept in a vertical state, and the heat treatment effect can be improved.

Preferably, the first partition plate and the second partition plate are alternately arranged up and down at intervals, and the axes of the upright columns on the first partition plate deviate from the axes of the upright columns on the second partition plate. The arrangement ensures that the workpiece is placed more uniformly and the heat treatment effect is better.

Preferably, the first sleeve and the second sleeve are provided with through holes penetrating in the radial direction. The service life of the first sleeve and the second sleeve is prolonged by arranging the through holes.

Preferably, the first convex ring divides the first fixed column into a first upper section and a first lower section, and the cross section of the first upper section is in a cross shape or a meter shape.

Preferably, the second convex ring divides the second fixed column into a second upper section and a second lower section, the section of the second upper section is cross-shaped or m-shaped, the section of the second lower section is circular, the maximum width of the second upper section is the same as the width of the second lower section, and the inner diameters of the second matching hole of the first partition plate and the second matching hole of the second partition plate are the same. Through making the second upper segment cross-section be cross or meter font to have great gap between second upper segment outer wall and the second sleeve inner wall, can reduce second fixed column and the telescopic area of contact of second, the telescopic getting of second of being convenient for is put, increase of service life simultaneously.

Preferably, the first partition plate and the second partition plate are both in a net plate type structure, and notches are formed in the peripheral edge of the first partition plate and the peripheral edge of the second partition plate. The notches are arranged, so that the latticed edges of the first partition plate and the second partition plate are thinned and even broken, casting of the first partition plate and the second partition plate can be facilitated, deformation or cracking of the positioning frame in the using process can be reduced, and the service life can be prolonged.

The utility model has the advantages of improving the charging amount, improving the production efficiency, reducing the rejection rate and prolonging the service life.

Drawings

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a top view of a first separator plate of the present invention;

FIG. 3 is a top view of a second separator plate according to the present invention;

FIG. 4 is a top view of the stud at the first separator plate of the present invention;

FIG. 5 is a schematic structural diagram of a first fixing pillar according to the present invention;

fig. 6 is a schematic structural diagram of a second fixing column according to the present invention.

Detailed Description

The utility model is further described below with reference to the figures and specific embodiments.

As shown in fig. 1 to 6, the positioning frame for heat treatment of shaft workpieces of the present invention comprises a chassis 1, wherein the chassis 1 is provided with at least two matching grooves 11 which are parallel and penetrate through the chassis along a horizontal direction, the chassis is provided with a first partition plate 2 and a second partition plate 3 which are arranged at an interval from top to bottom, and the first partition plate 2 and the second partition plate 3 are both provided with a plurality of upright posts 4 which extend upwards and are used for positioning the workpiece 100. Wherein the first partition 2 is supported on the chassis 1. Wherein, first baffle 2 and second baffle 3 all are netted plate type structure, and first baffle 2 all is equipped with breach 30 around the edge with second baffle 3 all around.

Wherein, stand and the first baffle 2 integrated into one piece setting on the first baffle 2, stand and the second baffle 3 integrated into one piece setting on the second baffle 3. Wherein, the cross-section of the upright post 4 is in a cross shape, and the outer wall of the upright post 4 is in an arc surface shape. Wherein, the axes of the upright columns on the first clapboard 2 deviate from the axes of the upright columns on the second clapboard 3.

The four corners of the circumferential edge of the chassis 1 are respectively provided with a fixing hole 13 for fixing the lower end of the first fixing column 5, and the inner wall of the fixing hole 13 and the outer wall of the lower end of the first fixing column 5 are provided with thread structures matched with each other. The deviated lower extreme department of first fixed column 5 is equipped with the first bulge loop 51 that extends to the week outside, and the lower terminal surface department in 2 four corners of first baffle is equipped with downwardly opening's constant head tank 21, and first bulge loop 51 of first fixed column 5 supports in chassis 1 upside and is located constant head tank 21, first bulge loop outer wall and constant head tank 21 lateral wall clearance fit. The first partition board 2 and the second partition board 3 are both provided with first matching holes 29 which penetrate through the first partition board from top to bottom to match with the first fixing columns 5.

First baffle 2 middle part and second baffle 3 middle part all are equipped with and run through from top to bottom in order to with the 6 complex second mating holes 39 of second fixed column, and the skew lower extreme department of second fixed column has the second bulge loop 61 to the outside extension of week, and second bulge loop 61 supports on first baffle 2. A plurality of first sleeves 71 arranged in an up-down stacked mode and a plurality of second sleeves 72 arranged in an up-down stacked mode are arranged between the second partition plate 3 and the first partition plate 2, the first sleeves 71 are sleeved outside the first fixing columns 5, the second sleeves 72 are sleeved outside the second fixing columns 6, and the second sleeves 72 at the lowest side are supported on the second convex rings 61 of the second fixing columns. Wherein the first sleeve 71 and the second sleeve 72 are provided with a through hole 70 penetrating in the radial direction.

The first convex ring 51 divides the first fixing column into a first upper section 501 and a first lower section 501, the cross section of the first upper section 501 is cross-shaped, and the outer wall of the first lower section 501 is provided with an external thread structure used for being matched with the fixing hole 13. The second convex ring 61 divides the second fixing column 6 into a second upper section 601 and a second lower section 602, the section of the second upper section 601 is cross-shaped, the section of the second lower section 602 is circular, the maximum width of the second upper section 601 is the same as the width of the second lower section 602, and the inner diameters of the second matching hole of the first partition plate 2 and the second matching hole of the second partition plate 3 are the same.

Claims

1. The positioning frame for heat treatment of shaft workpieces is characterized by comprising a chassis, wherein the chassis is provided with at least two matching grooves which are parallel and penetrate through the chassis in the horizontal direction, the chassis is provided with a plurality of first partition plates and a plurality of second partition plates which are arranged at intervals up and down, the first partition plates and the second partition plates are respectively provided with a plurality of upright columns which extend upwards and are used for positioning the workpieces in an array mode, the upper end face of the chassis is supported by a first partition plate, first fixing columns are supported on the chassis, second fixing columns are supported in the middle of the first partition plate at the lowest side, at least three first fixing columns are uniformly distributed on the circumferential edge of a bottom plate, the first partition plates and the second partition plates are respectively provided with first matching holes which penetrate through the first partition plates up and down and are matched with the first fixing columns, second matching holes which penetrate through the first partition plates up and down and are matched with the second fixing columns are arranged in the middle of the first partition plates, and a plurality of first sleeves which are arranged in an up-and down stacked mode and a plurality of second matching holes which are arranged in an up and a stacked mode are arranged in the second partition plates are arranged in the up and down and are arranged in a stacked mode And the second sleeve is sleeved outside the first fixed column and the second fixed column.

2. The positioning frame for heat treatment of shaft workpieces as claimed in claim 1, wherein the edge of the upper end face of the base plate is provided with a fixing hole for fixing the lower end of the first fixing column, the inner wall of the fixing hole and the outer wall of the lower end of the first fixing column are provided with screw structures which are matched with each other, a first convex ring extending towards the outer side in the circumferential direction is arranged at the position of the offset lower end of the first fixing column, a second convex ring extending towards the outer side in the circumferential direction is arranged at the position of the offset lower end of the second fixing column, and the lower end of the second fixing column extends into a second matching hole of the first partition plate at the lowest side.

3. The positioning frame for heat treatment of shaft workpieces as claimed in claim 1 or 2, wherein the lower end surface of the first partition plate is provided with a positioning groove with a downward opening, and the first protruding ring of the first fixing column is supported on the upper side of the base plate and is located in the positioning groove.

4. The positioning frame for heat treatment of shaft-like workpieces according to claim 1, wherein the upright posts on the first partition plate are integrally formed with the first partition plate, and the upright posts on the second partition plate are integrally formed with the second partition plate.

5. The positioning frame for heat treatment of shaft workpieces as claimed in claim 1 or 4, wherein the cross section of the upright post is cross-shaped or m-shaped, and the outer wall of the upright post is arc-surface-shaped.

6. The positioning frame for heat treatment of shaft-like workpieces according to claim 1, wherein the first partition plate and the second partition plate are alternately arranged up and down, and the axes of the columns on the first partition plate are deviated from the axes of the columns on the second partition plate.

7. The positioning frame for heat treatment of shaft-like workpieces as claimed in claim 1, wherein the first sleeve and the second sleeve are provided with through holes penetrating radially.

8. The positioning frame for heat treatment of shaft-like workpieces as claimed in claim 2, wherein the first protruding ring divides the first fixing column into a first upper section and a first lower section, and the cross section of the first upper section is cross-shaped or m-shaped.

9. The positioning frame for heat treatment of shaft-like workpieces according to claim 2, wherein the second protruding ring divides the second fixing column into a second upper section and a second lower section, the second upper section has a cross-shaped or m-shaped cross section, the second lower section has a circular cross section, the maximum width of the second upper section is the same as the width of the second lower section, and the inner diameters of the second matching hole of the first partition plate and the second matching hole of the second partition plate are the same.

10. The positioning frame for heat treatment of shaft workpieces as claimed in claim 1, wherein the first partition plate and the second partition plate are both in a net plate-shaped structure, and the peripheral edges of the first partition plate and the second partition plate are both provided with notches.