CN202701276U

CN202701276U - Tooling of bearing sleeve forged part with hemispherical section

Info

Publication number: CN202701276U
Application number: CN 201220271108
Authority: CN
Inventors: 戴玉同; 吴剑; 潘正华; 朱乾浩; 钱喜根
Original assignee: ZHANGJIAGANG HAILU ANNULAR FORGINGS CO Ltd
Current assignee: ZHANGJIAGANG HAILU ANNULAR FORGINGS CO Ltd
Priority date: 2012-06-11
Filing date: 2012-06-11
Publication date: 2013-01-30
Anticipated expiration: 2022-06-11

Abstract

The utility model relates to a tooling of a bearing sleeve forged part with a hemispherical section, wherein the tooling comprises a lower punch, an upper punch and a core roller; the lower punch forms an integral body through a cone, a concave type circular arc, a convex type circular arc and a cylinder in turn from top to bottom; the cone and the concave type circular arc are inclined in a small angle; the concave type circular arc is tangent to the convex type circular arc; the convex type circular arc is tangent to the cylinder; the upper punch forms an integral body by coaxially arranging the core and the cylinder in turn from top to bottom; the small diameter of the cone is equal to that of the cylinder; the diameter of the cylinder of the upper punch is equal to the large diameter of the cone of the lower punch; the core roller forms an integral body through the cylinder, the concave type circular arc, a convex type semi-circle, the concave type circular arc and the cylinder in turn from top to bottom; and various joints are tangent. The tooling disclosed by the utility model is applied to forging the bearing sleeve forged part with the hemispherical section; materials and energy are saved; the machining processes are reduced; and the forging performance can be increased.

Description

Hemisphere sectional axis bearing sleeve forging frock

Technical field

The utility model relates to a kind of hemisphere sectional axis bearing sleeve forging frock, is mainly used in the forging of hemisphere sectional axis bearing sleeve forging, belongs to the forging special-shape ring technical field of mold.

Background technology

The application at home and abroad of hemisphere sectional axis bearing sleeve forging is very extensive, is mainly used in large size bearing.The structure of hemisphere sectional axis bearing sleeve forging as shown in Figure 5, its cross section is hemispherical.Traditional hemisphere sectional axis bearing sleeve forging is when forging, at first forge the straight-flanked ring blank by upper punch and low punch, when rolling over ring, the contact-making surface between the inwall of hemisphere core roller and straight-flanked ring blank is little, cause rolling shakiness, easily produce crooked, eccentric, fill the defectives such as type is imperfect.

The utility model content

Technical problem to be solved in the utility model is: provide a kind of blank material that can make can have than large contact surface with hemisphere core roller behind base, reduce the hemisphere sectional axis bearing sleeve forging frock of bandaging piece vibration deformation when rolling over ring.

For addressing the above problem, the technical solution adopted in the utility model is: hemisphere sectional axis bearing sleeve forging frock, comprise low punch, upper punch and core roller, described low punch consists of an integral body by cone, matrix circular arc, convex circular arc and cylinder from top to bottom successively, cone and matrix circular arc have small angle inclination, matrix circular arc and convex circular arc are tangent, and convex circular arc and cylinder are tangent; Described upper punch consists of an integral body by cone and coaxial setting of cylinder from top to bottom successively, and the minor diameter of cone equals cylindrical diameter; The cylindrical diameter of described upper punch equals the major diameter of the cone of low punch; Described core roller consists of an integral body by cylinder, matrix circular arc, convex semicircle, matrix circular arc and cylinder from top to bottom successively, and each junction is all tangent, and the concave circular arcs of core roller is identical with the concave circular arcs of low punch.

The beneficial effects of the utility model are: adopt above-mentioned hemisphere sectional axis bearing sleeve forging frock, can make forging stock and core roller that larger contact-making surface is arranged, when rolling over ring, the rolled piece energy is rolling steadily, size is accurate, it is complete to fill type, and then reduced the scrappage of ring forging, save material, saved the energy and man-hour, improved production efficiency.

Description of drawings

Fig. 1 is the structural representation of low punch in the utility model frock;

Fig. 2 is the structural representation of upper punch in the utility model frock;

Fig. 3 is the structural representation of blank after the punching of the utility model frock;

Fig. 4 is the structural representation of the utility model frock core roller;

Fig. 5 is the forging schematic diagram that the utility model frock is made;

Among the figure: 1, low punch, 11, the low punch cone, 12, the low punch concave arc, 13, low punch dome arc, 14, the low punch cylinder, 2, upper punch, 21, upper punch cone, 22, the upper punch cylinder, 3, blank, 4, core roller, 41, core roller cylinder, 42, core roller concave arc, 43, core roller semi arch, 44, core roller concave arc, 45, core roller cylinder, 5, ring forging, 51, semi arch.

The specific embodiment

Below by specific embodiment the utility model hemisphere sectional axis bearing sleeve forging frock is described in further detail.

Hemisphere sectional axis bearing sleeve forging frock, comprise low punch 1, upper punch 2 and core roller 4, as shown in Figure 1, described low punch 1 is made of low punch cone 11, low punch concave arc 12, low punch dome arc 13 and low punch cylinder 14 from top to bottom successively, 12 one-tenth one fixed inclinations of low punch cone 11 and low punch concave arc, low punch concave arc 12 is tangent with low punch dome arc 13, and low punch dome arc 13 is tangent with low punch cylinder 14; As shown in Figure 2, described upper punch 2 is made of upper punch cone 21 and upper punch cylinder 22; As shown in Figure 4, described core roller 4 is made of core roller cylinder 41, core roller concave arc 42, core roller semi arch 43, core roller concave arc 44 and core roller cylinder 45 from top to bottom successively, core roller cylinder 41 is tangent with core roller concave arc 42, core roller concave arc 42 is tangent with core roller semi arch 43, core roller semi arch 43 is tangent with core roller concave arc 44, and core roller concave arc 44 is tangent with core roller cylinder 45; The major diameter of the low punch cone 11 of described low punch 1 equals the diameter of upper punch cylinder 22; The low punch concave arc 12 of described low punch 1 is identical with the core roller concave arc 42 of core roller 4.

Operation principle of the present utility model is: after forging and pressing, adopt low punch 1 to carry out lower punching, adopt afterwards upper punch 2 to carry out upper punching, thereby make structure blank material 3 as shown in Figure 3, adopt at last core roller 4 to roll over ring, make structure ring forging 5 as shown in Figure 5.Wherein, low punch 1 at first stamps out interior concave arc with blank material 3, so that blank material 3 inner circular arcs and core roller match; When upper punch 2 carried out punching, again because the major diameter of the low punch cone 11 of low punch 1 equals the diameter of upper punch cylinder 22, under the momentum effect of upper punch 2, so that blank material 5 is realized punching and blankings, and blank interior shape and core roller 4 matched; When adopting core roller 4 to roll over ring because the core roll shape matches with the inner pass of blank so that rolling steadily, size is accurate, it is complete to fill type, and then reduced the scrappage of ring forging 5, saved material, saved the energy and man-hour, improved operating efficiency.

The above embodiments are principle and the effect thereof of illustrative the invention only, and the embodiment of part utilization, but not is used for restriction the utility model; Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model creation design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.

Claims

1. hemisphere sectional axis bearing sleeve forging frock, comprise low punch, upper punch and core roller, it is characterized in that: described low punch consists of an integral body by cone, matrix circular arc, convex circular arc and cylinder from top to bottom successively, cone and matrix circular arc have small angle inclination, matrix circular arc and convex circular arc are tangent, and convex circular arc and cylinder are tangent; Described upper punch consists of an integral body by cone and coaxial setting of cylinder from top to bottom successively, and the minor diameter of cone equals cylindrical diameter; The cylindrical diameter of described upper punch equals the major diameter of the cone of low punch; Described core roller consists of an integral body by cylinder, matrix circular arc, convex semicircle, matrix circular arc and cylinder from top to bottom successively, and each junction is all tangent, and the concave circular arcs of core roller is identical with the concave circular arcs of low punch.