KR101789519B1 - Small size heat treatment parts pallet - Google Patents

Abstract

[0002] The present invention relates to a small heat-
A base tray having a lattice-like structure having a plurality of through holes penetrating in the up-and-down direction, the base tray having an outer portion including an upper edge and a plurality of post insertion holes at the center; A post inserted into the post insertion hole of the base tray to support the supporting member; A support member inserted into the post and supporting the hanger member; And a hanger member provided on the support member and supporting the small heat treatment component.
It is possible to safely load a large amount of miniature heat treatment parts and charge them in the precise position of the heat treatment furnace, thereby improving the heat treatment productivity and minimizing thermal deformation of the component parts.

Description

{SMALL SIZE HEAT TREATMENT PARTS PALLET}

[0001] The present invention relates to a small heat-treated component mounting board which is loaded into a heat treatment furnace for heat treatment such as softening, and more particularly to a small heat-treated component mounting board which can load large amounts of small heat- Lt; / RTI >

Generally, the heat treatment refers to an operation for improving the properties of a material by heating and cooling at a proper speed.

Heat treatment is a production technology required to improve various properties such as strength, hardness, abrasion resistance, fatigue resistance, impact resistance, workability and magnetic properties required for metals or alloys by controlling the structure by heating and cooling the material parts. As the industry is at the very end of the process and at the core of the process, the impact on all industries, especially the metal industry, is enormous.

The type of heat treatment is used for the type of phase present or the material of which the composition is changed due to temperature, quenching at high temperature, quenching for partially or wholly preventing the change that usually occurs, And then annealing the material at a relatively low temperature to quench the material to slightly change the material to make it have proper characteristics. The material is heated and slowly cooled to correct the warping of the metal material, or to make the phase change stable to a stable state.

On the other hand, when the object to be heat-treated is a small-sized component (hereinafter referred to as a heat-treated component), it is common to charge a large amount of the heat-treating furnace using a loading table. It is more important than anything else to have heat transferred.

Meanwhile, as a kind of liquid immersion method, the softening heat treatment, which is called tuft triade, is carried out by maintaining a softening bath at 350-570 ° C, feeding air at 30% at all times, heating the object for 20-30 minutes, Lt; / RTI >

Softened heat-treated parts are tempered in advance by quenching (550-600 ° C). Softened heat-treated parts have improved abrasion resistance and fatigue resistance, so they are subjected to softening heat treatment mainly for shafts and gears of automobile parts

The following Patent Document 1 discloses a mounting apparatus for heat treatment of components of a breaker.

The mounting device for heat treatment of parts of the breaker of Patent Document 1 allows the rectangular frame to be easily moved into and out of the heat treatment unit through a ring integrally formed on the upper side of the corner portion, Shaped support bars are integrally formed to be integrally formed to increase the strength of the stacking frame and to prevent breakage and deformation of the stacking frame in advance and to prevent the breaking and deformation of the stacking frame by stacking and transporting a plurality of stacked heavy- Shaped support bars and support rods, and the arc-shaped component support grooves are integrally formed at upper and lower portions at a predetermined interval in the interior of the loading frame And are spaced apart from each other at regular intervals through a component supporting jig, And the circular breaker parts can be arranged and stacked successively in succession through the component supporting jig, so that the flow of the breaker parts can be prevented and the effect of heat treatment of the breaker parts inside the loader frame can be further enhanced .

The following Patent Document 2 discloses a loading apparatus for supporting a component to be heat-treated in a furnace.

The heat-treated parts loading apparatus of Patent Document 2 includes a base portion; A loading post extending above at least the entire height of the loading device while being secured to the base; A plurality of spacers which are provided with a central passage through which the stacking columns can pass and which allow the trays to be mounted at predetermined intervals in succession and which, after the trays are assembled, A plurality of stacking trays for conveying the same number of spacers arranged to form the part; At least one spacer carried by each tray having a size or arrangement different from the space being conveyed by the same trays so that they can be displayed during assembly, .

Patent Document 3 below discloses a workpiece stacking apparatus for a heat treatment apparatus.

The heat treatment part loading apparatus of Patent Document 3 has a plurality of loading sections and a loading section support which are capable of stacking the plate-like workpieces to be heat-treated up and down at a predetermined interval, and each loading section has a plurality of workpieces At least one of the plurality of workpiece receiving members is supported at a position away from the periphery of the workpiece, and each of the workpiece receiving members has a long length and a flat upper surface.

The following Patent Document 4 discloses a rack for supporting parts to be heat-treated.

The rack of the patent document 4 consists essentially of a composition of a hot-spot composition comprising a bottom plate, a partition extending over the bottom plate, a plurality of support arms fixed to the partition and extending generally horizontally from the partition to the free end, Only one of the arms is supported at a fixed position.

Korean Patent Publication No. 10-2013-0134886 (published on Dec. 10, 2013) Korean Patent Publication No. 10-2001-0024719 (published on Mar. 26, 2001) Korean Patent Publication No. 10-2004-0029193 (published on Apr. 06, 2004) Korean Patent Publication No. 10-2001-0053379 (published on June 25, 2001)

However, there is a problem that it is difficult to load a large amount of miniature heat-treated parts in the heat-treated part loading apparatus according to the related art including Figs. 1 to 4.

In addition, the heat-treated component mounting apparatus according to the related art has no means for safely charging the heat-treating furnace, and there is a problem that the heat-treated component can not be positioned at the correct position inside the heat-treating furnace.

In addition, in the heat-treated component mounting apparatus according to the related art, thermal deformation of component parts is caused by the process gas and heat involved in the heat treatment process, which has a problem that the service life is shortened.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the prior art, and it is an object of the present invention to provide a small heat-treated parts stacking table capable of safely loading a large amount of small heat-treated parts.

It is another object of the present invention to provide a small heat treatment component mounting board capable of facilitating charging of a heat treatment furnace and positioning a compact heat treatment component in a precise position inside the heat treatment furnace.

Another object of the present invention is to provide a small heat-treated part stacking table that can minimize the deformation of component parts exposed to the process gas and heat together with the miniature heat-treated parts in the heat-treating furnace.

Another object of the present invention is to provide a small heat-treated part stacking table capable of safely pulling out a small heat-treated part finished in a heat-treating furnace.

In order to achieve the above object, the small heat-treated part mounting board according to the present invention has a grid-like structure having a plurality of vent holes penetrating in the up and down direction, and has an outer portion including an upper corner and a plurality of post insertion holes A base tray provided; A post inserted into the post insertion hole of the base tray to support the supporting member; A support member inserted into the post and supporting the hanger member; A pair of rail grooves spaced horizontally from the upper and lower ends of the base tray are formed in the forward and backward directions and are provided in the forward and rearward directions at the inlet of the heat treatment furnace The small heat-treated component mounting block is loaded smoothly into the heat treatment furnace through the guide rails, and the small heat-treated component mounted on the small heat-treated component mounting stand is heat-treated stably at the set position.

delete

The small heat-treated component mounting board according to the present invention is characterized in that the small heat-treated component mounting board and the small heat-treated component mounted thereon are hooked at the upper front center and the upper rear center of the base tray when the heat- And at least one deformation preventing groove is provided on both sides of the base tray.

The small heat-treated component mounting board according to the present invention is characterized in that the post inserting portion is integrally provided at the lower portion of the support portion of the post and the support member inserting portion having a positive (+) type cross-section is integrally provided at the upper portion of the support portion, .

 The small heat-treated part mounting board according to the present invention is characterized in that an elliptical insertion portion having a front-rear width larger than the width of the left and right sides is provided on the front and rear sides of the support member, the support portion is integrally provided between the two insertion portions, And a through hole is formed in the front or rear of the insert to be connected to the insert hole so that the process gas and heat of the heat treatment furnace are transferred to the inside and the outside of the insert hole.

The small heat-treated component mounting board according to the present invention is characterized in that a plurality of ventilation holes are provided in the front-rear direction on the support portion, and reinforcing ribs are provided on both sides of the support portion.

The small heat-treated component mounting board according to the present invention is characterized in that a plurality of fitting protrusions are provided at the upper and lower ends of the receiving portion of the receiving member, respectively, so that the receiving member can be used upside down.

The small heat-treated component mounting board according to the present invention is characterized in that the hanger member is provided with connecting portions on both sides and the center thereof and a hanger portion is provided between a pair of adjacent connecting portions, and a plurality of small heat- And the hooking grooves are provided in the left-right direction.

According to the small heat-treated part mounting table of the present invention, it is possible to safely load a large amount of small heat-treated parts, thereby improving the productivity of heat treatment and reducing the cost.

According to the small heat-treated part mounting board of the present invention, it is possible to easily charge the heat-treating furnace, and the heat-treating efficiency can be improved because the small heat-treating part can be positioned at the correct position in the heat-treating furnace.

According to the small-sized heat-treated part mounting table of the present invention, the process gas and heat transferred to each component are smoothly moved in the process of heat treatment for the small heat-treated component in the heat treatment furnace, thereby preventing thermal deformation of the component .

According to the small heat-treated part mounting table of the present invention, since the main parts such as the base tray, the supporting member, the hanger member and the like can be turned over, the handling of the parts can be simplified and the deformation due to continuous use in one direction can be prevented do.

According to the small heat-treated component mounting board of the present invention, a small heat-treated component that has undergone a heat treatment operation in a heat treatment furnace can be safely taken out to the outside.

1 is an exploded perspective view of a small heat-treated part mounting board according to a preferred embodiment of the present invention,
Fig. 2 is a perspective view of a small heat-treated part mounting board according to the preferred embodiment,
Fig. 3 is a front view of the small heat-treated part mounting table according to the preferred embodiment,
4 is a plan view of the base tray of the small heat-treated part mounting table according to the preferred embodiment,
Fig. 5A is a partially cutaway front view of a post of the miniature heat-treated part stand according to the preferred embodiment, Fig.
Fig. 5B is a plan view of the post of the miniature heat-treated part stand according to the preferred embodiment, Fig.
Fig. 6A is a front view of the supporting member of the small heat-treated part mounting table according to the preferred embodiment, Fig.
Fig. 6B is a plan view of the supporting member of the small heat-treated part mounting table according to the preferred embodiment, Fig.
Fig. 6C is a left side view of the supporting member of the small heat-treated part mounting table according to the preferred embodiment, Fig.
Fig. 7A is a front view of a hanger member of a small heat-treated part mounting board according to the preferred embodiment; Fig.
Fig. 7B is a plan view of the hanger member of the small heat-treated part mounting board according to the preferred embodiment, Fig.
Fig. 7C is a partially enlarged front view of a hanger member of a small heat-treated part mounting board according to the preferred embodiment; Fig.
FIG. 7D is an enlarged right side view of the hanger member of the small heat-treated part mounting board according to the preferred embodiment,
Fig. 8A is a front view of another hanger member of the miniature heat-treated parts stand according to the preferred embodiment, Fig.
Fig. 8B is an enlarged view of a part of another hanger member of the small heat-treated parts stand according to the preferred embodiment; Fig.
Fig. 8C is a longitudinal sectional view of another hanger member of the miniature heat-treated part mounting board according to the preferred embodiment, Fig.
Fig. 9 is a longitudinal sectional view of a receiving member post insertion portion of the small heat-treated component mounting board according to the preferred embodiment; Fig.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a small heat-treated part mounting board according to the present invention will be described in detail with reference to the accompanying drawings.

In the following, the terms "upward", "downward", "forward" and "rearward" and other directional terms are defined with reference to the states shown in the drawings.

2 is a perspective view of a small heat-treated part mounting board according to the preferred embodiment of the present invention, and Fig. 3 is a perspective view of the small heat-treated part mounting board according to the preferred embodiment of the present invention. Fig. It is frontal view of the unit.

The miniature heat treated part mounting table 100 according to the preferred embodiment of the present invention includes a base tray 110, a post 120, a supporting member 130, and a hanger member 140.

The base tray 110 supports both the post 120 and the supporting member 130, the hanger member 140, and the miniature heat-treated part P.

Fig. 4 is a plan view of a base tray of a small heat-treated part mounting table according to the preferred embodiment.

The base tray 110 is rectangular, and a plurality of post insertion holes 111 are provided at an outer portion including the upper edge and a central portion.

The base tray 110 has a lattice-like structure having a plurality of through holes 112 penetrating in the up and down direction, allowing the process gas and heat to move up and down through the vent holes 112.

At the upper and lower ends of the base tray 110, a pair of rail grooves 113 spaced from each other in the left-right direction are formed in the front-rear direction.

The pair of rail grooves 113 allow the small heat treatment component mounting table 100 to be smoothly loaded into the heat treatment furnace through the guide rails provided in the forward and backward directions at the entrance of the heat treatment furnace, So that the heat-treated parts stacked on the heat-treated parts are stably heat-treated at the set positions.

The rail groove 113 is formed at the same position on the top because the lower end of the base tray 110 is connected to the guide rail but the base tray 110 can be used in an inverted manner.

A widening portion is provided at the front end and the rear end of the rail groove 113, so that it can be smoothly inserted into the guide rail.

In the upper front center and upper rear center of the base tray 110, when the small heat treatment component mounting table 100 and the small heat treatment component P loaded thereon are taken out from the inside by a high temperature heat treatment, And a hooking hole 114 is formed so that it can be engaged.

At least one or more deformation preventing grooves 115 are formed on both sides of the base tray 110 to prevent deformation, cracks, and other damage due to thermal expansion and contraction. And is formed into an arc shape.

FIG. 5A is a partial cutaway front view of a post of a miniature heat-treated part stand according to the preferred embodiment, and FIG. 5B is a top view of a post of a miniature heat-treated part stand according to the preferred embodiment.

The post 120 is for supporting the support member 130. The post insertion portion 121 is integrally provided at a lower portion of the support portion 122 having an oval planar shape, And a support member insertion portion 123 having a positive (+) shape is integrally provided.

The upper end of the support member insertion portion 123 is formed to be pointed so that the support member 130 can be easily engaged.

The post 120 is formed in a positive (+) shape so that the process gas and heat can provide a passage through which the gas can move in the vertical direction.

Fig. 6A is a front view of the supporting member of the small heat-treated part mounting board according to the preferred embodiment of the present invention, Fig. 6B is a plan view of the supporting member of the small heat- Fig. 7 is a left side view of the supporting member of the heat treatment part mounting stand. Fig.

The support member 130 supports the miniature heat treatment component P via the hooking member 140 and is installed on both upper sides of the upper side of the base tray 110 via the posts 120. [

The support member 130 may be installed on the upper center of the upper end of the base tray 110 when the weight of the small heat-treated component P as the object to be stacked is heavy.

The support member 130 has a rectangular shape with a short vertical length and a long left and right length.

The receiving member 130 is provided with an elliptical insertion portion 131 having front and rear widths larger than the width of the left and right front and rear portions and a receiving portion 132 is integrally provided between the two insertion portions 131.

The insertion portion 131 is provided with an elliptical insertion hole 133 in the vertical direction and a ventilation hole 134 is formed in the front or rear of the insertion portion 131 to be connected to the insertion hole 133.

The support portion 132 is provided with a plurality of ventilation holes 135 in the forward and backward directions and the reinforcing ribs 136 are provided at both sides of the support portion 132.

A plurality of fitting protrusions 137 for supporting the hanger member 140 are provided at the upper and lower ends of the receiving portion 132 in the forward and backward directions.

The hanger member 140 is inserted between a pair of fitting protrusions 137 provided at the upper end of the receiving portion 132 but a plurality of pairs of fitting protrusions 137 are formed at the lower end of the receiving portion 132 The reason for this is that the support member 130 can be turned over.

The insertion portions 131 of the support member 130 are inserted into the posts 120 provided in the base tray 110. [

A plurality of other supporting members 130 are installed on the upper part of the inserted supporting member 130 of the post 120 and the spaces between the supporting members 130 are spaced apart through the cylindrical spacers 150.

Fig. 7A is a front view of a hanger member of the miniature heat treated part mounting board according to the preferred embodiment, Fig. 7B is a plan view of the hanger member of the miniature heat treated part mounting board according to the preferred embodiment, Fig. 7D is an enlarged right side view of the hanger member of the miniature heat-treated parts stand according to the preferred embodiment of the present invention; Fig.

The hanger member 140 supports the miniature heat-treated component P and is installed at the upper end of the pair of right and left support members 130. [

The hanger member 140 has a connecting portion 141 at both sides and a center, and a row rejection 142 is provided between a pair of adjacent connecting portions 141. [

A plurality of hooking grooves 143 capable of hanging the small heat-treated parts P are provided at the upper and lower ends of the row rejection 142 in the left-right direction.

The hanger member 140 can be variously modified according to the shape of the small heat-treated parts P to be supported.

In the hanger member 140 shown in Figs. 7A to 7D, the longitudinal direction of the connection portion 141 is square, and the longitudinal direction of the row rejection 142 is positive.

Fig. 8A is a front view of another hanger member of the miniature heat-treated parts stand according to the presently preferred embodiment, Fig. 8B is a partial enlarged view of another hanger member of the miniature heat-processed part stand according to the presently preferred embodiment, Fig. 6 is a longitudinal sectional view of another hanger member of the small heat-treated part mounting board according to the example. Fig.

The other hanger member 140 shown in FIGS. 8A to 8C is for supporting a lightweight miniature heat-treated component P and is provided in such a form that the connecting portion 141 is not provided at the center, And the vertical row rejection regions 142 are all circular in shape.

The small heat treatment component mounting table 100 according to the preferred embodiment of the present invention is installed in the left and right direction on a plurality of support members 130 arranged vertically through the posts 120 on the top of the base tray 110 A large amount of small heat-treated parts P can be stably loaded through the plurality of hanger members 140. [

A process of loading the miniature heat treatment part P on the small untreated part mounting table 100 according to the preferred embodiment of the present invention will be described below.

First, the posts 120 are installed on the base tray 110.

Two pairs of posts 120 are provided on both sides of the base tray 110 in a rectangular planar shape when the posts 120 are installed and when the weight of the small heat treatment parts P is heavy, A pair of posts 120 are also provided in the front center and the upper rear center respectively.

Next, the support member 130 is installed on both sides of the top of the base tray 110 through a pair of posts 120 spaced in the front-rear direction.

When the posts 120 are provided at the upper front center and the upper rear center of the base tray 110, the supporting members 130 are also installed at the upper center of the base tray 110.

A plurality of hanger members 140 hanging small heat-treated parts P are arranged in the front-rear direction on the upper end of the receiving member 130 for each hook groove 143 of the row rejection 142. [

The spacer 150 is inserted into each of the posts 120 to secure a gap therebetween and a new support member 130 is installed on the upper surface of each support member 130 and the upper end of the newly installed support member 130 A plurality of hanger members 140 hanging small heat-treated parts P are arranged in the front-rear direction.

The operation of installing the new support member 130 and the hanger member 140 is repeated until no further supporting member 130 can be installed on the post 120. [

After the loading of the miniature heat-treated parts P, the small heat-treated parts stand 100 is charged into the heat-treating furnace filled with the process gas.

The small heat treatment part mounting table 100 according to the preferred embodiment of the present invention is provided with the rail grooves 113 at the lower end of the base tray 110. Therefore, when loading the heat treatment furnace into the heat treatment furnace, It is possible to move the small heat treated part mounting table 100 to the correct position inside the heat treatment furnace through the rail.

The small heat treatment part mounting table 100 is loaded in the heat treatment furnace and the ventilation holes 112 of the base tray 110 and the supporting member 130 The process gas and heat are freely moved through the ventilation holes 135, so that thermal deformation of the base tray 110 and the supporting member 130 can be minimized.

Fig. 9 is a longitudinal sectional view of the support member post insertion portion of the small heat-treated component mounting board according to the preferred embodiment of the present invention.

The elliptical insertion hole 133 of the insertion portion 131 of the supporting member 130 is inserted into the receiving member insertion portion 123 of the positive type post 120 in the small heat treated component mounting stand 100 according to the preferred embodiment of the present invention And a vent hole 134 is formed in front of or behind the insertion portion 131 of the receiving member 130. [

The process gas and heat that have entered the elliptical insertion hole 133 of the insertion portion 131 of the receiving member 130 are freely moved up and down along the receiving member insertion portion 123 of the + The thermal deformation of the inserting portion 131 of the receiving member 130 can be minimized since it can be discharged to the outside of the receiving member 130 through the vent hole 134 of the receiving member 130.

As described above, the small-sized heat-treated component mounting table 100 according to the preferred embodiment of the present invention includes the base tray 110 (shown in FIG. 1) which is heated together with the miniature heat-treated component P while being heated in the heat- ), The post 120, the support member 130, and the like can be minimized.

After the heat treatment process in the heat treatment furnace is completed, the hooks of the pulling means are coupled to the hook holes 114 provided at the upper front center of the base tray 110 and the upper rear center of the base tray 110, So that the small heat-treated component P can be pulled out to be safely withdrawn from the inside by a high-temperature heat treatment.

Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

100: Small heat-treated parts loading stand
110: Base tray
120: Post
130: Support member
140: absence of hanger

Claims (8)

A base tray 110 having a grid-like structure having a plurality of ventilation holes 112 penetrating in a vertical direction, the base tray 110 having a plurality of post insertion holes 111 at an outer portion including an upper edge and a central portion;
A post 120 inserted into the post insertion hole 111 of the base tray 120 to support the supporting member 130;
A receiving member 130 inserted in the post 120 and supporting the hanger member 140;
And a hanger member (140) provided on the support member (130) for supporting the miniature heat treated component (P)
A pair of rail grooves 113 spaced left and right from the upper and lower ends of the base tray 110 are formed in the forward and backward directions to guide the small heat treatment component mounting table 100 through the guide rails provided in the forward and backward directions at the entrance of the heat treatment furnace, And the small heat-treated parts (P) loaded on the small-sized heat-treated part mounting table (100) are stably heat-treated at the set positions. delete The method according to claim 1,
When the small heat treatment component mounting table 100 and the small heat treatment component P mounted thereon are taken out to the outside from the inside of the high temperature heat treatment furnace at the upper front center and the upper rear center of the base tray 110, And a hook hole (114) is formed to allow the engaging hole (114) to be engaged with the engaging hole (114). The method according to claim 1,
The post 120 is integrally provided with a post insertion portion 121 at a lower portion of the support portion 122 and a support member insertion portion 123 integrally formed at the upper portion of the support portion 122 in a cross- Wherein the process gas and heat are transferred in a vertical direction. The method according to claim 1,
The receiving member 130 is provided with an elliptical insertion portion 131 having front and rear widths larger than the width of the left and right widths and a receiving portion 132 is integrally provided between the both insertion portions 131, An elliptical insertion hole 133 is provided in the insertion hole 131 in the vertical direction and a ventilation hole 134 is formed in the front or rear of the insertion portion 131 to be connected to the insertion hole 133, And the process gas and heat of the heat treatment furnace are transferred to the outside. 6. The method of claim 5,
Characterized in that a plurality of ventilation holes (135) are provided in the fore and aft direction on the support part (132), and a reinforcing rib (136) is provided on both sides of both sides of the support part (132). The method according to claim 5 or 6,
Wherein the support member 130 is provided with a plurality of pairs of fitting protrusions 137 at the upper and lower ends of the receiving unit 132 so that the receiving unit 130 can be turned upside down. The method according to claim 1,
The hanger member 140 is provided with a connecting portion 141 at both sides and a center and a row rejecting portion 142 is provided between a pair of adjacent connecting portions 141. The hanger member 140 has a small Characterized in that a plurality of hooking grooves (143) capable of suspending the heat-treated parts (P) are provided in the left-right direction.

Images