Overlapping anti-water ingress sealing device for powder metallurgy

Abstract

The utility model relates to an overlapping anti-water ingress sealing device for powder metallurgy, which is installed at the flange of the rubber sleeve of the powder metallurgy mold, including an upper clamp, a lower clamp and a rubber plug; the rubber plug has a positioning part that fits with the outer end face of the flange of the rubber sleeve and a sealing part that extends into the rubber sleeve and can seal the rubber sleeve; the upper clamp fits with the outer end face of the positioning part of the rubber plug; the lower clamp is sleeved outside the rubber sleeve and fits with the inner end face of the flange of the rubber sleeve, including a left lower half clamp and a right lower half clamp that can overlap each other, and the left lower half clamp, the right lower half clamp and the upper clamp are locked by a plurality of countersunk screws. The lower clamp of the utility model adopts an overlapping form, which is convenient for installation and disassembly; the lower clamp is provided with an anti-slip groove to prevent relative sliding between the rubber sleeve and the rigid mold; the upper surface of the upper clamp is provided with a countersunk hole, and the upper surface of the screw head can be flush with the upper surface of the upper clamp by using a countersunk screw, so that the occupied space can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of target material processing, in particular to an overlapping anti-water ingress sealing device for powder metallurgy. Background Art

[0002] According to different uses, the target materials need to have various specifications, so different molds are required when cutting, including steel sleeves and rubber sleeves.

[0003] The existing rubber sleeve clamp sealing device occupies too much volume. Considering the limited space of the cold isostatic press, it is particularly important to minimize the volume occupied by the sealing device or the peripheral rigid mold in order to meet the blanking amount of products of different specifications. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model provides an overlapping anti-water ingress sealing device for powder metallurgy, which simplifies the original sealing structure.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A lap joint anti-water ingress sealing device for powder metallurgy, installed at the flange of the rubber sleeve of the powder metallurgy mold, comprising an upper clamp, a lower clamp and a rubber plug;

[0007] The rubber plug comprises a positioning portion which fits with the outer end surface of the flange of the rubber sleeve opening, and a sealing portion which extends into the rubber sleeve opening and can seal the rubber sleeve opening;

[0008] The upper clamp is fitted with the outer end surface of the positioning portion of the rubber plug;

[0009] The lower clamp is sleeved on the outside of the rubber sleeve opening and fits with the inner end face of the flange of the rubber sleeve opening, and includes a left lower half clamp and a right lower half clamp that can overlap each other. The left lower half clamp, the right lower half clamp and the upper clamp are locked by a plurality of countersunk screws.

[0010] In order to facilitate mutual cooperation, in a preferred embodiment of the present invention, the upper clamp, the lower clamp, the positioning part of the rubber plug and the flange are all rectangular frame structures, and the dimensions in the length and width directions are the same.

[0011] In order to facilitate the overlapping and disassembly between the left lower half clamp and the right lower half clamp, the opposite ends of the left lower half clamp and the right lower half clamp are provided with downwardly recessed L-shaped grooves, and the two L-shaped grooves overlap each other to form a rectangular frame structure.

[0012] In order to prevent relative sliding between the rubber sleeve and the rigid mold, a downwardly concave rectangular anti-slip groove is provided at the joint between the lower clamp and the inner end surface of the flange of the rubber sleeve opening.

[0013] The utility model is beneficial in that:

[0014] (1) The lower clamp of the utility model is divided into a left lower half clamp and a right lower half clamp, which are overlapped to facilitate installation and disassembly;

[0015] (2) The left lower half clamp and the right lower half clamp are provided with anti-slip grooves to prevent relative sliding between the rubber sleeve and the rigid mold, which may cause water ingress and damage to the material;

[0016] (3) A countersunk hole is opened on the upper surface of the upper fixture, and a countersunk screw is used so that the upper surface of the screw head is flush with the upper surface of the upper fixture. Because the cover of the cold isostatic press is not a flat surface, the use of countersunk screws can also reduce the occupied space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the overlapping anti-water ingress sealing device for powder metallurgy of the utility model;

[0018] Figure 2 It is an exploded view of the overlapping anti-water ingress sealing device for powder metallurgy of the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the lower clamp of the utility model. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more explicit definition of the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "side", "end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] like Figure 1 The illustrated overlapping anti-water ingress sealing device for powder metallurgy is installed at the flange 2 of the rubber sleeve mouth 1 of the powder metallurgy mold, and includes an upper clamp 4, a lower clamp 5 and a rubber plug 3, wherein the upper clamp 4, the lower clamp 5, the rubber plug 3 and the flange 2 are all rectangular frame structures, and their length and width dimensions are the same.

[0022] Specifically, combined Figure 2As shown, the rubber plug 3 has a positioning portion 301 that fits with the outer end surface of the flange 2 of the rubber sleeve opening 1 (the top end surface in the figure) and a sealing portion 302 that extends into the rubber sleeve opening 1 and can seal the entire rubber sleeve opening 1. The sealing portion 302 is a rectangular closed structure that can support the rubber sleeve opening 1.

[0023] The upper clamp 4 is fitted with the outer end surface (the top end surface in the figure) of the positioning portion 301 of the rubber plug 3, that is, the upper clamp 4 covers the positioning portion 301, and a circle of 10mm deep countersunk holes is provided on the surface of the upper clamp 4;

[0024] The lower clamp 5 is sleeved on the outside of the rubber sleeve opening 1 and fits against the inner end face (the bottom end face in the figure) of the flange 2 of the rubber sleeve opening 1. Figure 3 As shown, the lower clamp 5 includes a left lower half clamp 501 and a right lower half clamp 502 which can overlap each other, and the opposite ends of the left lower half clamp 501 and the right lower half clamp 502 are provided with a downwardly recessed L-shaped groove, and the two L-shaped grooves overlap each other to form a rectangular frame structure, and the lower clamp 5 is provided with a circle of threaded holes corresponding to the countersunk holes on the upper clamp 4. In addition, the lower clamp 5 is provided with a downwardly recessed rectangular anti-skid groove 503 at the inner end surface of the flange 2 of the rubber sleeve mouth 1. The anti-skid groove 503 is 5mm wide and 3mm deep, which can prevent relative sliding between the rubber sleeve and the rigid mold, resulting in water ingress and damage to the material.

[0025] When in use, after the material is put into the rubber sleeve, overlap the left lower half clamp 501 and the right lower half clamp 502, place them under the flange 2 of the rubber sleeve mouth 1, put in the rubber plug 3, and then put the upper clamp 4 on the rubber plug 3, tighten it with a countersunk screw, and the clamping is completed.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A lap joint anti-water ingress sealing device for powder metallurgy, installed at the flange of the rubber sleeve of the powder metallurgy mold, characterized in that: It includes an upper clamp, a lower clamp and a rubber plug; The rubber plug comprises a positioning portion which fits with the outer end surface of the flange of the rubber sleeve opening, and a sealing portion which extends into the rubber sleeve opening and can seal the rubber sleeve opening; The upper clamp is fitted with the outer end surface of the positioning portion of the rubber plug; The lower clamp is sleeved on the outside of the rubber sleeve opening and fits with the inner end face of the flange of the rubber sleeve opening, and includes a left lower half clamp and a right lower half clamp that can overlap each other. The left lower half clamp, the right lower half clamp and the upper clamp are locked by a plurality of countersunk screws.

2. The overlapping anti-water ingress sealing device for powder metallurgy according to claim 1, characterized in that: The upper clamp, the lower clamp, the positioning part of the rubber plug and the flange are all rectangular frame structures, and the dimensions in the length and width directions are the same.

3. The overlapping anti-water ingress sealing device for powder metallurgy according to claim 2, characterized in that: The opposite ends of the left lower half clamp and the right lower half clamp are both provided with L-shaped grooves recessed downwards, and the two L-shaped grooves overlap each other to form a rectangular frame structure.

4. The overlapping anti-water ingress sealing device for powder metallurgy according to claim 2 or 3, characterized in that: A downwardly concave rectangular anti-slip groove is provided at the joint position between the lower clamp and the inner end surface of the flange of the rubber sleeve opening.

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