CN206706153U - A kind of vacuum drying oven carburizing and quenching frock - Google Patents

Abstract

The utility model discloses a kind of vacuum drying oven carburizing and quenching frock, including base and multiple vertical rods, multiple vertical rods are into array distribution on base, multiple crossbeams are connected between laterally adjacent vertical rod, multiple crossbeams are in Multi-layers distributing, multiple bridging bars are distributed with along the length direction of crossbeam between every layer of adjacent beams, the both ends of bridging bar are respectively placed in adjacent beams；The section of bridging bar is cross, and equidistantly distributed has multiple boss along its length on bridging bar.It is simple in construction, it is easy to setup, production efficiency is improved, is effectively utilized space, adds batch, it is cost-effective, quenching quality is improved, the part quality of production is stable, suitable for batch production.

Description

A kind of vacuum drying oven carburizing and quenching frock

Technical field

It the utility model is related to technical field of heat treatment, and in particular to a kind of vacuum drying oven carburizing and quenching frock.

Background technology

Prior heat treatment frock clamping quenches, and using the mode that mounts, part is passed to bridging pole from endoporus, is used between partPacking ring separates, and part is also easy to produce quenching soft spot with washer contacts region, and in order to reduce the contact between packing ring and part Area, packing ring size is reduced as far as possible, it is impossible to ensure the gap between part, cause to touch between part and part so as to influence heat Quality is handled, and packing ring is worn and presss from both sides cumbersome, low production efficiency.Mount part only have endoporus top and pole contact area by Upper support force effect, by downward Action of Gravity Field, this force way is yielding in quenching process at other positions, deformation Amount does not reach production requirement more than 0.04mm.Same direction is placed between levels part, and levels part overlaps together increasing Add heat treatment deformation amount, such as to have avoided levels part from laminating, levels part gap need to be increased, but batch is reduced, it is raw Produce cost increase.

The content of the invention

The technical problems to be solved in the utility model is, in view of the foregoing defects the prior art has, there is provided Yi Zhongzhen Empty stove carburizing and quenching frock, it is simple in construction, it is easy to setup, production efficiency is improved, is effectively utilized space, is added Batch, it is cost-effective, quenching quality is improved, the part quality of production is stable, suitable for batch production.

The utility model is that technical scheme is used by solving above-mentioned technical problem：

A kind of vacuum drying oven carburizing and quenching frock, including base and multiple vertical rods, multiple vertical rods into array distribution in On base, multiple crossbeams are connected between laterally adjacent vertical rod, multiple crossbeams are in Multi-layers distributing, along horizontal stroke between every layer of adjacent beams Multiple bridging bars are distributed with the length direction of beam, and the both ends of bridging bar are respectively placed in adjacent beams；

The section of bridging bar is cross, and equidistantly distributed has multiple boss along its length on bridging bar.

According to above-mentioned technical proposal, multiple hollow out air-vents are distributed with base, air-vent is square opening, and base is heat-resisting The base of steel casting.

According to above-mentioned technical proposal, boss includes convex platform and lower convex platform, and convex platform is arranged at the top of bridging bar, under it is convex Platform is arranged at the lower section of bridging bar, and lower convex platform is than convex director.

According to above-mentioned technical proposal, the upper end of crossbeam is evenly distributed with multiple grooves along its length.

According to above-mentioned technical proposal, groove is square groove.

According to above-mentioned technical proposal, the side end face of crossbeam is provided with multiple circulation grooves.

According to above-mentioned technical proposal, circulation groove is rectangular channel.

According to above-mentioned technical proposal, crossbeam is connected between longitudinally adjacent vertical rod.

According to above-mentioned technical proposal, the boss on bridging bar between adjacent two layers is in staggered distribution.

The utility model has the advantages that：

It is simple in construction between 1. part is placed directly within the boss of bridging bar two by the utility model, it is easy to setup, improve life Efficiency is produced, bridging bar Multi-layers distributing, part is distributed in spatial multi, is effectively utilized space, adds clamping quantity, is saved Cost, suitable for batch production, cross bridging bar mounts part, avoids part from becoming in quenching process because of unbalance stress Shape, the boss of equidistantly distributed separates part on bridging bar, ensures the gap between part, reduces hanger and feature contacts Area, quenching hardness soft spots is avoided, improve quenching quality, the part quality of production is stable.

2. being designed with equidistant rectangular recess on crossbeam places bridging bar, prevent bridging bar from sliding, while add part Stability when entering stove, coming out of the stove and entering oil hardening；The boss on bridging bar between adjacent two layers is in staggered distribution, and makes phase up and down Adjacent bed placing part intersects modes of emplacement using staggering, and avoids levels part from laminating increase deflection, while effective utilization Space, increase batch, it is cost-effective.

Brief description of the drawings

Fig. 1 is the front view of vacuum drying oven carburizing and quenching frock in the utility model embodiment；

Fig. 2 is Fig. 1 A-A sectional views；

Fig. 3 is the sectional view of eccentric gear in the utility model embodiment；

Fig. 4 is the structural representation of bridging crossbeam in the utility model embodiment；

Fig. 5 is the structural representation of fixed cross beam in the utility model embodiment；

Fig. 6 is the structural representation of bridging bar in the utility model embodiment；

Fig. 7 is Fig. 6 left view；

Fig. 8 is the top view of bottom in the utility model embodiment；

In figure, 1- bases, 2- vertical rods, 3- crossbeams, 4- bridging bars, 5- parts, 6- square grooves, 7- rectangular channels, 8- boss.

Embodiment

The utility model is described in detail with reference to the accompanying drawings and examples.

Shown in 1~Fig. 8 of reference picture, vacuum drying oven carburizing and quenching work in a kind of embodiment provided by the utility model Dress, including base and multiple vertical rods, multiple vertical rods, on base, are connected with multiple horizontal strokes into array distribution between laterally adjacent vertical rod Beam, multiple crossbeams are in Multi-layers distributing, and multiple bridging bars, bridging bar is distributed with along the length direction of crossbeam between every layer of adjacent beams Both ends be respectively placed in adjacent beams；

The section of bridging bar is cross, and multiple boss are evenly distributed with along its length on bridging bar.

Further, multiple hollow out air-vents are distributed with base, air-vent is square opening, saves material, and ensures to ooze The circulation of atmosphere during carbon, base are the base of casting heat resistant steel.

Further, boss includes convex platform and lower convex platform, and convex platform is arranged at the top of bridging bar, and lower convex platform is arranged at The lower section of bridging bar, lower convex platform is than convex director, composite special-shaped pore structure.

Further, the upper end of crossbeam is evenly distributed with multiple grooves along its length；Groove is used to place bridging bar, prevents Sliding stop；

Further, groove is square groove.

Further, the side end face of crossbeam is provided with multiple circulation grooves；Circulation groove can ensure the stream of atmosphere and quenching oil The general character.

Further, circulation groove is rectangular channel.

Further, crossbeam is connected between longitudinally adjacent vertical rod, crossbeam is divided into bridging crossbeam and fixed cross beam, and bridging is horizontal Beam is cross direction profiles, and for supporting bridging bar, bridging crossbeam upper end is provided with square groove, multiple circulations are distributed with side end face Groove, fixed cross beam are genesis analysis, and for reinforcing the intensity between longitudinally adjacent vertical rod, multiple circulations are distributed with fixed cross beam Groove, fixed cross beam upper end is without being provided with direction groove.

Further, the boss on the bridging bar between adjacent two layers is in staggered distribution, and adjacent two layers part is staggered intersection Place, avoid neighbouring layer part from laminating, effective utilization space.

The part for needing to quench in the present embodiment is eccentric gear schematic diagram, eccentric gear part with holes, and material is SNCM220 or other carburizing steel, external diameterEndoporusThickness 4-6mm, case hardness require HRC58-62, had Hardened-depth 0.4-0.6mm is imitated, centre hardness is not more than 300HV5, and surface is not allow for soft spots, and gear member dimensional accuracy will Ask higher, be molded using fine blanking technology, heat treatment deformation amount is not more than 0.04mm.

As shown in Fig. 1~Fig. 7, a kind of vacuum drying oven carburizing or carbonitriding heat treatment tooling schematic diagram, the present embodiment is A kind of little gear fine part with holes；Heat treatment tooling involved in the present invention includes base 1, vertical rod 2, crossbeam 3, bridging bar 4；Bottom Seat 1 is designed with square opening, is formed by casting heat resistant steel, saves material, and ensures the circulation of atmosphere during carburizing, as shown in Figure 8； Vertical rod 2 and crossbeam 3 use Q345 materials, are welded between the periphery of base 1 and adjacent vertical rod, part 5 is mounted on bridging bar 4 from endoporus On, bridging bar is designed as cross, saves material, and equidistant boss is designed with ten word directions, between ensureing between part Gap, the present embodiment gear are eccentric gear, and boss 8 is designed as short lower length, composite special-shaped pore structure, as shown in Fig. 6~Fig. 7； The bridging bar 4 for putting on part is lain on crossbeam 3, and levels part, which staggers to intersect, to be placed, and avoids levels part from laminating, effectively Utilization space；Bridging direction crossbeam is designed with equidistant square groove 6, and for placing bridging bar, anti-sliding stop, rectangular channel 7 can To ensure the circulation of atmosphere and quenching oil, as shown in Figure 4；Vertical bridging direction crossbeam need not design square groove, for solid Determine vertical rod, consolidate frock, as shown in Figure 5.

The utility model specific embodiment and workflow are as follows：

1. the part for needing to quench is linked on cross bridging bar by endoporus, part is placed between two boss 8, is ensured adjacent Gap between part, 20 parts of every bridging bar clamping in the present embodiment；

2. the bridging bar of clamping part is placed horizontally on the crossbeam with rectangular channel, it is spaced at equal intervals with layer part, Levels part, which staggers to intersect, to be placed, and shown in 1~Fig. 2 of below figure, every stove batch is 1000-1200 parts zero in the present embodiment Part.

The power for being only preferred embodiment of the present utility model, the utility model can not being limited with this certainly above Sharp scope, therefore the equivalence changes made according to present utility model application the scope of the claims, still belong to the scope of protection of the utility model.

Claims (9)

1. A kind of 1. vacuum drying oven carburizing and quenching frock, it is characterised in that including base and multiple vertical rods, multiple vertical rod Cheng Zhen Column distribution is on base, being connected with multiple crossbeams between laterally adjacent vertical rod, multiple crossbeams are in Multi-layers distributing, every layer of adjacent beams Between along the length direction of crossbeam multiple bridging bars are distributed with, the both ends of bridging bar are respectively placed in adjacent beams；

   The section of bridging bar is cross, and equidistantly distributed has multiple boss along its length on bridging bar.
2. 2. vacuum drying oven carburizing and quenching frock according to claim 1, it is characterised in that be distributed with base multiple Hollow out air-vent, base are the base of casting heat resistant steel.
3. 3. vacuum drying oven carburizing and quenching frock according to claim 1, it is characterised in that boss include convex platform and Lower convex platform, convex platform are arranged at the top of bridging bar, and lower convex platform is arranged at the lower section of bridging bar, and lower convex platform is than convex director.
4. 4. vacuum drying oven carburizing and quenching frock according to claim 1, it is characterised in that the upper end edge length of crossbeam Direction is evenly distributed with multiple grooves.
5. 5. vacuum drying oven carburizing and quenching frock according to claim 4, it is characterised in that groove is square groove.
6. 6. vacuum drying oven carburizing and quenching frock according to claim 1, it is characterised in that set on the side end face of crossbeam There are multiple circulation grooves.
7. 7. vacuum drying oven carburizing and quenching frock according to claim 6, it is characterised in that circulation groove is rectangular channel.
8. 8. vacuum drying oven carburizing and quenching frock according to claim 1, it is characterised in that between longitudinally adjacent vertical rod It is connected with crossbeam.
9. 9. vacuum drying oven carburizing and quenching frock according to claim 1, it is characterised in that the extension between adjacent two layers Boss on material bar is in staggered distribution.