Forming process of jack head seat of oil jack

Abstract

The invention discloses a forming process of a jack head seat of an oil jack. The jack head seat structurally comprises a square jack head fixing plate, two side fixing plates and two arc-shaped surfaces, the two side fixing plates and the two arc-shaped surfaces are arranged on four sides of the jack head fixing plate correspondingly, the two side fixing plates are oppositely arranged, and the two arc-shaped surfaces are oppositely arranged, the jack head fixing plate, the two side fixing plates and the two arc-shaped surfaces are integrally formed from a steel plate, a cylindrical boss protruding upwards is arranged on the jack head fixing plate, the cylindrical boss and the jack head fixing plate are connected at 90 degrees, a threaded hole is formed in the cylindrical boss, and the length of the threaded hole is larger than or equal to 4.0 cm. According to the forming process of the jack head seat of the oil jack, the length of the threaded hole is designed to be larger than or equal to 4.0 cm, and the longer the threaded hole is, the higher the connection strength between the cylindrical boss and the jack head is.

Description

Technical field: [0001] The invention relates to the technical field of production of hydraulic jacks, in particular to a molding process of a plug seat of the hydraulic jack. Background technique: [0002] The rubber pad is set in the head seat of the hydraulic jack to directly contact the product (vehicle) that needs to be lifted, and the product on the head seat is lifted through the hydraulic cylinder. There is a step hole connected to the head of the hydraulic jack in the head seat In view of this, the stepped hole is related to the connection strength between the plug seat and the plug. Generally speaking, the higher the height of the stepped hole, the larger the contact area between the stepped hole and the plug seat, and the higher the connection strength. [0003] At present, the forming process of the plug seat is formed by one-piece cold extrusion of a steel plate. However, according to the requirements of the cold extrusion forming process of the steel plate, the...

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Problems solved by technology

[0003] At present, the forming process of the plug seat is formed by one-piece cold extrusion of a steel plate. However, according to the requirements of the cold extrusion forming process of the steel plate, the maximum thickness of the steel plate can only be selected as 4.0cm. In the existing process, the forming of the boss on the steel plate The height can only reach 50% of the thickness of the material itself, that is, the height of the boss can only reach 2.0cm at most, and the boss of this height is far from meeting the connection strength between the plug seat and the plug. Secondly, the plugs currently on the market When the seat is finally cold-extruded into one piece, due to the large extrusion of the edge of the material, the extruded surface of the edge of the plug seat will be damaged to a certain extent, which reduces the strength of the plug seat itself, and the strength of the plug seat itself It is directly related to the bearing capacity of the head seat itself to the external force

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