Vacuum heat treatment containing tool for pressing plate type parts

Abstract

The utility model relates to a vacuum heat treatment containing tool for pressing plate type parts, which comprises a cuboid-shaped container with an upper opening, and is technically characterized in that four side walls and the bottom surface of the cuboid-shaped container are respectively of a hollow-out structure, and each hollow-out structure consists of a plurality of rows of circular rings and radial connecting ribs which are arranged on the peripheries of the circular rings in a cross shape; every two adjacent circular rings share the same radial connecting rib, an upper layer hollow horizontal supporting plate and a lower layer hollow horizontal supporting plate are arranged in the cuboid-shaped container, an upper operating arm and a lower operating arm are arranged on the outer portions of the two opposite side walls of the cuboid-shaped container respectively, and a plurality of inserting columns are arranged on the sides, facing the cuboid-shaped container, of the operating arms at intervals. The tail ends of the inserting columns penetrate through the corresponding circular rings and then are clamped and fixed to the edges of the hollowed-out horizontal supporting plates, and clamping grooves corresponding to the hollowed-out horizontal supporting plates are formed in the end faces of the inserting columns. Compared with a traditional tool, on one hand, the weight is reduced, the charging amount of parts is increased, on the other hand, the hollow structure is adopted, the contact area between the parts and argon is increased, and the quenching effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of parts manufacturing, in particular to a vacuum heat treatment containing tooling for press plate parts. Background Art

[0002] At present, some platen parts need to be treated by vacuum quenching. When performing vacuum heat treatment on them, the platen parts are usually stacked in a traditional tooling. The traditional tooling is a rectangular container with an upper opening. Multiple platen parts are stacked and loaded into the traditional tooling. The tooling and platen parts are pushed into a vacuum heat treatment furnace together. The heat treatment furnace begins to be evacuated to 5×10 -3 Pa, after the vacuum is completed, start heating to the set temperature and keep it warm. After the insulation is completed, argon gas is filled into the furnace body and cooled to room temperature to complete vacuum quenching.

[0003] However, there are the following problems when using traditional tooling for vacuum gas quenching heat treatment: 1. The tooling and parts are put into the furnace together, and the combined weight of the two is limited by the maximum load-bearing capacity of the heat treatment furnace. That is, the heavier the tooling, the fewer parts can be loaded. Traditional tooling increases the production cost of parts; 2. When argon is filled to quench the parts, the contact area between the parts and the argon is greatly limited, which directly affects the cooling rate of the parts and indirectly affects the qualified rate of the heat treatment products. Utility Model Content

[0004] The purpose of the utility model is to provide a vacuum heat treatment holding fixture for pressure plate-type parts with a reasonable structure and reliable use to solve the above-mentioned problems. Compared with traditional fixtures of the same specifications, on the one hand, the weight is reduced, which greatly reduces the proportion of the fixture in the load-bearing weight of the heat treatment furnace, thereby increasing the amount of parts loaded into the furnace and reducing production costs; on the other hand, a hollow structure is adopted to increase the contact area between the parts and argon gas, improve the quenching effect, and thus significantly improve the qualified rate of products.

[0005] The technical solution of the utility model is:

[0006] A vacuum heat treatment containing tooling for press plate-type parts comprises a rectangular container with an upper opening, and its technical highlights are: the four side walls and the bottom surface of the rectangular container are all hollow structures, and the hollow structure is composed of multiple rows of circular rings and radial connecting ribs arranged in a cross shape on the outer circumference of the circular rings, and two adjacent circular rings share the same radial connecting ribs; an upper and a lower layer of hollow horizontal support plates are provided in the rectangular container, and the structure of the hollow horizontal support plates is the same as that of the hollow structure; an upper and a lower operating arm are respectively provided on the outside of two opposite side walls of the rectangular container, and a plurality of plug posts are arranged at intervals on the operating arms facing the side of the rectangular container, and the ends of the plug posts pass through the corresponding circular rings and are clamped and fixed to the edges of the hollow horizontal support plates, and the end faces of the plug posts are provided with clamping grooves corresponding to the hollow horizontal support plates.

[0007] In the above-mentioned press plate type parts vacuum heat treatment containing fixture, a group of baffles are respectively fixed at the outer edges of the upper end surfaces of the four side walls of the rectangular container, each group of baffles is composed of two baffles arranged at intervals, and the upper edges of the baffles are higher than the upper end surfaces of the side walls of the rectangular container. This structural design is conducive to maintaining a stable state when multiple rectangular containers are stacked.

[0008] In the above-mentioned vacuum heat treatment containing tooling for press plate-type parts, a plurality of reinforcing ribs are provided in the middle of the hollow structure on the bottom surface of the rectangular container, and the reinforcing ribs are connected between two diagonally arranged circular rings.

[0009] In the above-mentioned vacuum heat treatment containing tooling for press plate-type parts, ventilation gaps are left between the four sides of the hollow horizontal support plate and the four side walls of the rectangular container.

[0010] The above-mentioned press plate type parts vacuum heat treatment containing tooling, the operating arm is provided with a push handle on the side facing away from the rectangular container.

[0011] The above-mentioned press plate type parts vacuum heat treatment containing tooling, a chamfered transition surface is provided between two adjacent side walls of the rectangular container to reduce the deformation of the tooling during heat treatment.

[0012] The beneficial effects of the utility model are:

[0013] 1. Compared with traditional tooling, the weight is reduced by about 30%, which reduces the manufacturing cost of tooling. At the same time, the reduced weight can process 80 more products in each heat treatment, and the production cost of parts is greatly reduced.

[0014] 2. The main body of the tooling is hollowed out, including the horizontal support plate, which increases the number of parts contained on the one hand, and greatly increases the contact area between the parts and the argon gas on the other hand, so that the quenching effect of the parts is improved and the product qualification rate is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a rectangular parallelepiped container of the utility model;

[0016] Figure 2 yes Figure 1 Left view of

[0017] Figure 3 yes Figure 1 Bottom view of

[0018] Figure 4 It is a cross-sectional view of the utility model;

[0019] Figure 5 It is a schematic diagram of the external structure of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the operating arm and peripheral components of the utility model;

[0021] Figure 7 yes Figure 6 Bottom view of

[0022] Figure 8 It is a schematic diagram of the bottom loading parts of the utility model.

[0023] In the figure: 1. rectangular container, 2. circular ring, 3. radial connecting ribs, 4. reinforcing ribs, 5. baffles, 6. chamfered transition surface, 7. hollow horizontal support plate, 8. plug-in column, 9. operating arm, 10. push handle, 11. slot, 12. pressure plate parts. DETAILED DESCRIPTION

[0024] The utility model is described in detail according to the accompanying drawings of the specification.

[0025] like Figures 1 to 8 As shown, the vacuum heat treatment containing tooling for the platen-type parts comprises a rectangular container 1 with an upper opening.

[0026] The four side walls and the bottom surface of the rectangular container 1 are all hollow structures. The hollow structure is composed of multiple rows of circular rings 2 and radial connecting ribs 3 arranged in a cross shape on the outer periphery of the circular rings 2, and two adjacent circular rings 2 share the same radial connecting rib 3. A plurality of reinforcing ribs 4 are provided in the middle of the hollow structure of the bottom surface of the rectangular container 1, and the reinforcing ribs 4 are connected between two circular rings 2 arranged diagonally.

[0027] The rectangular container 1 is provided with upper and lower hollow horizontal support plates 7, and the structure of the hollow horizontal support plates 7 is the same as the hollow structure. Ventilation gaps are left around the hollow horizontal support plates 7 and the four side walls of the rectangular container 1.

[0028] The two opposite side walls of the rectangular container 1 are provided with upper and lower operating arms 9, respectively. The operating arms 9 are provided with a plurality of plug posts 8 at intervals facing the rectangular container 1. The ends of the plug posts 8 pass through the corresponding rings 2 and are fixedly engaged with the edges of the hollow horizontal support plates 7. The end faces of the plug posts 8 are provided with card slots 11 corresponding to the hollow horizontal support plates 7. The operating arms 9 are provided with a push handle 10 on the side facing away from the rectangular container 1.

[0029] A group of baffles 5 are fixed at the outer edges of the upper end surfaces of the four side walls of the rectangular container 1, each group of baffles 5 is composed of two baffles 5 arranged at intervals, and the upper edges of the baffles 5 are higher than the upper end surfaces of the side walls of the rectangular container 1. This structural design is conducive to maintaining a stable state when multiple rectangular containers 1 are stacked.

[0030] A chamfered transition surface 6 is provided between two adjacent side walls of the rectangular container 1 to reduce the deformation of the tooling during heat treatment. The hollow ring 2 and the radial connecting rib 3 use arc transitions, and the radial connecting rib 3 and the side wall of the rectangular container 1 use arc transitions to avoid a 90° right angle, disperse the internal stress caused by thermal expansion and contraction, reduce the occurrence of tooling cracking and deformation problems, and extend the service life of the tooling.

[0031] When using, see Figure 8 First, evenly and separately place a layer of laminate parts 12 on the bottom surface of the tooling, and then use the plug-in column 8 on the operating arm 9 to position and fix the hollow horizontal support plate 7 of the lower layer. After that, evenly and separately place the second layer of laminate parts 12 above the hollow horizontal support plate 7 of the lower layer, and then use the plug-in column 8 on the operating arm 9 to position and fix the hollow horizontal support plate 7 of the upper layer. Finally, evenly and separately place the third layer of laminate parts 12 above the hollow horizontal support plate 7 of the upper layer, increase the number of parts placed, and increase the contact area between each part and argon gas, to ensure the quality of heat treatment and product quality.

[0032] The above is a detailed description of the embodiments of the utility model, but the above contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of the invention of the utility model should still fall within the scope of this patent.

Claims

1. A vacuum heat treatment container for platen parts, comprising a rectangular container with an upper opening, characterized in that: The four side walls and the bottom surface of the rectangular container are all hollow structures, and the hollow structure is composed of multiple rows of circular rings and radial connecting ribs arranged in a cross shape on the outer circumference of the circular rings. Two adjacent circular rings share the same radial connecting rib. The rectangular container is provided with upper and lower layers of hollow horizontal support plates, and the structure of the hollow horizontal support plates is the same as the hollow structure. Upper and lower operating arms are respectively provided on the outside of two opposite side walls of the rectangular container, and a plurality of plug posts are provided at intervals on the operating arms toward the side of the rectangular container. The ends of the plug posts pass through the corresponding circular rings and are clamped and fixed to the edges of the hollow horizontal support plates, and the end faces of the plug posts are provided with clamping grooves corresponding to the hollow horizontal support plates.

2. The vacuum heat treatment holding fixture for press plate parts according to claim 1 is characterized in that: A group of baffles are respectively fixed at the outer edges of the upper end surfaces of the four side walls of the rectangular container, each group of baffles consists of two baffles arranged at intervals, and the upper edges of the baffles are higher than the upper end surfaces of the side walls of the rectangular container.

3. The vacuum heat treatment holding fixture for press plate parts according to claim 1 is characterized in that: A plurality of reinforcing ribs are provided in the middle of the hollow structure of the bottom surface of the rectangular container, and the reinforcing ribs are connected between two diagonally arranged circular rings.

4. The vacuum heat treatment holding fixture for press plate parts according to claim 1 is characterized in that: Ventilation gaps are left around the hollow horizontal support plate and between the four side walls of the rectangular container.

5. The vacuum heat treatment holding fixture for press plate parts according to claim 1 is characterized in that: The operating arm is provided with a push handle on the side facing away from the rectangular container.

6. The vacuum heat treatment holding fixture for press plate parts according to claim 1, characterized in that: A chamfered transition surface is provided between two adjacent side walls of the rectangular parallelepiped container.

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