CN220901769U - Rolling bearing device for thread rolling machine provided with rolling bearing - Google Patents

Abstract

The utility model belongs to the field of mechanical processing technology, and relates to a rolling bearing for a thread rolling machine equipped with a rolling bearing. The rolling bearing device for a thread rolling machine equipped with a rolling bearing comprises a support plate; the two ends of the support plate are respectively connected to side plates; the side plates are arranged perpendicular to the support plate; an open semicircular through hole is opened in the center of the upper end of the side plate; a rotating shaft for supporting the workpiece is installed between the open semicircular through holes of the two side plates; an auxiliary shaft for providing auxiliary support for the rotating shaft is also arranged between the two side plates; the auxiliary shaft is arranged parallel to the rotating shaft, and the auxiliary shaft is located below the rotating shaft; a plurality of radial ball bearings are sleeved on the auxiliary shaft; the outer ring of the radial ball bearing is tangent to the outer circle of the rotating shaft. The utility model greatly reduces the sliding friction between the workpiece and the support plate, increases the service life of the rotating shaft, and does not cause jamming, thereby ensuring the quality of the workpiece.

Description

A rolling bearing device for a thread rolling machine equipped with a rolling bearing

Technical Field

The utility model belongs to the technical field of mechanical processing, and in particular relates to a rolling support device for a thread rolling machine which is equipped with a rolling bearing.

Background technique

Thread processing of bolts and screws is generally done by thread rolling, which is a non-cutting cold rolling process with the advantages of high precision and efficiency, good quality, high stability and low material consumption.

During the thread rolling process, two rolling wheels are installed on parallel axes and move in the same direction at a constant speed. One of the rolling wheels also makes radial feed motion. The workpiece rotates under the drive of the rolling wheels, and threads are formed on the surface under the extrusion of the rolling wheels. The supporting tooling supports the workpiece during the processing. In the prior art, the thread rolling support of the thread rolling machine is generally a fixed bracket or a supporting shaft.

The fixed bracket is generally made of cemented carbide. During the processing, the workpiece rotates against the surface. Although the cemented carbide surface is very hard, it is constantly rubbing against the workpiece, which causes great wear to the fixed bracket over time and easily causes jamming, resulting in the scrapping of the workpiece and affecting the life of the thread rolling wheel. The method of using a rotating shaft for support is searched and the utility model patent: CN 204135249 U is the closest to the utility model. It uses two tangent rollers for support to avoid sliding friction damage between the workpiece and the bracket; but the two rollers rotate by the friction between each other, and the friction is large, which will also cause damage, and generate a lot of heat and noise, and the life of the device is short, and it still needs to be improved.

Summary of the invention

In order to solve the problems existing in the prior art, the purpose of the utility model is to provide a rolling support device for a thread rolling machine equipped with a rolling bearing.

The utility model adopts the following technical solutions to achieve the above purpose:

A rolling support device for a thread rolling machine equipped with a rolling bearing, the rolling support device comprising a support plate; side plates are respectively connected to the two ends of the support plate; the side plates are arranged perpendicular to the support plate; an open semicircular through hole is opened at the center of the upper end of the side plate; a rotating shaft for supporting a workpiece is installed between the open semicircular through holes of the two side plates; an auxiliary shaft for providing auxiliary support for the rotating shaft is also arranged between the two side plates; the auxiliary shaft is arranged parallel to the rotating shaft, and the auxiliary shaft is located below the rotating shaft; a plurality of radial ball bearings are sleeved on the auxiliary shaft; the outer ring of the radial ball bearing is tangent to the outer circle of the rotating shaft.

An open semicircular groove for installing an auxiliary shaft is provided below the open semicircular through hole of the side plate.

The lower part of the side plate is provided with through holes and positioning pin holes for installing screws and positioning pins.

The purpose of the utility model is to provide a rolling support device for a thread rolling machine equipped with a rolling bearing, in which a rotating shaft is in direct contact with a workpiece and rotates with the workpiece to provide effective support, while greatly reducing the friction between the workpiece and the rotating shaft to avoid damage to the workpiece and jamming; an auxiliary shaft provides auxiliary support for the rotating shaft to improve the rigidity of the rotating shaft; a radial ball bearing is installed on the auxiliary shaft to make the rotation of the two shafts smoother and avoid damage caused by sliding friction between the two shafts, so that the device has a long service life and high efficiency; the two side plates are connected to the support plate by screws, which are easy to disassemble and have good interchangeability.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of the utility model.

FIG. 2 is a side view of FIG. 1 .

FIG3 is a schematic structural diagram of a side panel of the present invention.

FIG. 4 is a side view of FIG. 3 .

In the figure: 1, rotating shaft, 2, side plate, 3, auxiliary shaft, 4, adjusting gasket, 5, radial ball bearing, 6, hexagon head bolt, 7, locating pin, 8, support plate, 9, elastic retaining ring.

Implementation

The utility model is described with reference to the accompanying drawings and specific embodiments:

As shown in Figures 1 and 2, a rolling bearing device for a thread rolling machine is installed with a rolling bearing, and the rolling bearing device has a support plate 8; the two ends of the support plate 8 are respectively connected to side plates 2; the side plates 2 are arranged perpendicular to the support plate 8; an open semicircular through hole is opened in the center of the upper end of the side plate 2; a rotating shaft 1 for supporting the workpiece is installed between the open semicircular through holes of the two side plates; an auxiliary shaft 3 for providing auxiliary support for the rotating shaft is also arranged between the two side plates 2; the auxiliary shaft 3 is arranged parallel to the rotating shaft 1, and the auxiliary shaft 3 is located below the rotating shaft 1; a plurality of radial ball bearings 5 are sleeved on the auxiliary shaft 3; the outer ring of the radial ball bearing 5 is tangent to the outer circle of the rotating shaft 1.

3 and 4 , an open semicircular groove for installing an auxiliary shaft is provided below the open semicircular through hole of the side panel; through holes and positioning pin holes for installing screws and positioning pins are provided below the side panel; four threaded holes and two positioning pin holes are drilled on the support plate 2 for installing screws 6 and positioning pins 7 to connect the side panel 2.

During installation, the two side plates 2 are connected to the support plate 8 by four screws 6, and the positioning pins 7 ensure the installation accuracy. The rotating shaft 1 is horizontally mounted on the semicircular holes above the two side plates 2, in direct contact with the workpiece, used to support the workpiece, and rotates with the workpiece. The radial ball bearing 5 is installed on the auxiliary shaft 3, and the distance between the radial ball bearings 5 is adjusted by adjusting the gasket 4. Finally, the radial ball bearing 5 is fixed on the auxiliary shaft 3 by the shaft elastic retaining ring 9. After the radial ball bearing 5 is installed, the auxiliary shaft 3 is horizontally mounted on the open semicircular groove in the middle of the side plate 2. The outer ring of the radial ball bearing 5 is tangent to the outer circle of the rotating shaft 1 and rotates with the rotating shaft 1.

The advantages of adopting the utility model are: the rotating shaft 1 is in direct contact with the workpiece and rotates with the workpiece to provide effective support, while greatly reducing the friction between the workpiece and the rotating shaft 1, avoiding damage to the workpiece and jamming; the auxiliary shaft 3 provides auxiliary support for the rotating shaft 1, improving the rigidity of the rotating shaft 1; installing a radial ball bearing 5 on the auxiliary shaft 3 makes the rotation of the two shafts smoother, avoiding damage caused by sliding friction between the two shafts, and the device has a long service life and high efficiency; the two side plates 2 are connected to the support plate 8 by screws 6, which are easy to disassemble and have good interchangeability.

Claims (3)

1. A rolling support device for a thread rolling machine equipped with a rolling bearing, characterized in that: the rolling support device has a support plate; the two ends of the support plate are respectively connected to side plates; the side plates are arranged perpendicular to the support plate; an open semicircular through hole is opened in the center of the upper end of the side plate; a rotating shaft for supporting the workpiece is installed between the open semicircular through holes of the two side plates; an auxiliary shaft is also arranged between the two side plates to provide auxiliary support for the rotating shaft; the auxiliary shaft is arranged parallel to the rotating shaft, and the auxiliary shaft is located below the rotating shaft; a plurality of radial ball bearings are sleeved on the auxiliary shaft; the outer ring of the radial ball bearing is tangent to the outer circle of the rotating shaft. 2. A rolling support device for a thread rolling machine equipped with a rolling bearing as described in claim 1, characterized in that an open semicircular groove for installing an auxiliary shaft is provided below the open semicircular through hole of the side plate. 3. A rolling support device for a thread rolling machine equipped with a rolling bearing as described in claim 1, characterized in that: there are through holes and positioning pin holes for installing screws and positioning pins below the side plate.