CN210307311U

CN210307311U - A top structure for positioning version roller taper hole

Info

Publication number: CN210307311U
Application number: CN201921000438.4U
Authority: CN
Inventors: 李京
Original assignee: Chongqing Jingzhun Printing Plate Co ltd
Current assignee: Chongqing Jingzhun Printing Plate Co ltd
Priority date: 2019-06-30
Filing date: 2019-06-30
Publication date: 2020-04-14
Anticipated expiration: 2029-06-30

Abstract

The utility model provides a top structure for fixing a position version roller taper hole belongs to mechanical technical field. The center solves the problems of small application range and low efficiency during replacement of the existing center. This top structure for fixing a position version roller taper hole, including a location section of thick bamboo, the through-hole that has coaxial setting in the section of thick bamboo of fixing a position wears to be equipped with in the through-hole and can follow through-hole axial motion's ejector pin, and the front end of ejector pin articulates the bracer that has a plurality of axis ring array along the ejector pin and distributes, and a plurality of bracers constitute conical addendum cone, are equipped with between addendum cone and the location section of thick bamboo to be used for changing the conical adjusting part of addendum cone. The utility model has the advantages of wide application range, good clamping stability and the like.

Description

A top structure for positioning version roller taper hole

Technical Field

The utility model belongs to the technical field of machinery, a top structure for fixing a position version roller taper hole is related to.

Background

The plate roller is also called a steel roller and is divided into a hollow roller and a solid roller, and two ends of the hollow roller are provided with conical clamping holes (taper holes). The sizes and the tapers of the tapered clamping holes at the two ends of the steel rollers of different models are different. When grinding hollow steel rolls, grinding equipment is usually used. For example, the chinese patent discloses a hollow plate roller grinding apparatus [ No. CN205799191U ], which comprises a grinding groove and a grinding head, wherein a rotating shaft is arranged at the left end in the grinding groove, the left end of the rotating shaft is connected with a rotating motor, and the right end of the rotating shaft is provided with a left center which can rotate along with the rotating shaft; the right-hand member sets up the afterbody fixing base in the grinding groove, and afterbody fixing base left end is provided with rotatable right top. The tip is fixed in shape, so that the tip can only be matched with a taper hole of a printing roller of a certain type, and the application range is small; when grinding equipment processes printing rollers of different models, the top point needs to be replaced in order to obtain a better clamping effect, but the problems of difficulty in replacement and low efficiency exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided a can be with the top structure that is used for fixing a position version roller taper hole of the taper hole matching of different version rollers.

The purpose of the utility model can be realized by the following technical proposal:

the tip structure for positioning the roller taper hole is characterized by comprising a positioning barrel, wherein a through hole is coaxially formed in the positioning barrel, a push rod capable of axially moving along the through hole penetrates through the through hole, a plurality of supporting blocks distributed along the central axis of the push rod in an annular array mode are hinged to the front end of the push rod, the supporting blocks form a conical tip cone, and an adjusting assembly used for changing the taper of the tip cone is arranged between the tip cone and the positioning barrel.

When the positioning cylinder is used, the positioning cylinder can be rotatably arranged in a chuck seat of a grinding machine, and after the positioning cylinder is arranged, the positioning cylinder can rotate around the central axis of the positioning cylinder and is axially fixed. Due to the fact that the adjusting assembly is arranged, the taper of the tip cone can be adjusted according to the taper of the roller taper hole, and the application range is wide.

In the tip structure for positioning the roller taper hole, a plurality of mounting grooves are distributed at the front end of the ejector rod along the central axis of the tip structure, the mounting grooves extend axially along the ejector rod, the depth direction of the mounting grooves extends radially along the ejector rod, the supporting block is hinged in the mounting groove correspondingly arranged with the supporting block through a hinge rod, and the minimum distance from the outer surface of the supporting block to the central axis of the ejector rod is greater than the radius of the supporting rod. The supporting blocks are the same in shape and size, and a tip cone formed by the supporting blocks is arranged coaxially with the ejector rod.

In the tip structure for positioning the roller taper hole, the outer surface of the supporting block is a cylindrical surface. The supporting block which is a cylindrical surface is in line contact with the taper hole of the plate roller, so that the friction between the supporting block and the taper hole can be reduced.

In the tip structure for positioning the roller taper hole, the adjusting assembly comprises a limiting blocking edge arranged at the rear end of the positioning cylinder, a spring with the front end abutting against the ejector rod is arranged in the through hole, and the rear end of the spring abuts against the limiting blocking edge.

In the tip structure for positioning the roller taper hole, the front end of the positioning cylinder is provided with an annular convex edge, and the front end of the annular convex edge is provided with a fillet.

In the tip structure for positioning the roller taper hole, the outer surfaces of the supporting blocks are provided with grooves perpendicular to the central line of the ejector rod, the grooves in the plurality of supporting blocks are positioned on the same annular line of the tip cone, and the grooves are internally provided with elastic rings. The elastic rubber is a rubber ring, and the outer diameter of the elastic rubber is smaller than the depth of the groove. The inner side surfaces of the plurality of supporting blocks are always abutted against the rounded angle of the annular convex edge under the action of the elastic ring.

Under the normal state, the spring is in the extension state, and the ejector pin moves forward to foremost position, makes the tapering of the apical cone that constitutes by a plurality of bracers minimum under the effect of elastic ring this moment. When the printing roller is positioned, the front end of the printing roller is clamped on a chuck of a grinding machine, then the chuck seat is moved, a tip cone formed by a plurality of supporting blocks extends into a conical hole of the printing roller, the chuck seat is continuously moved forwards, the plurality of supporting blocks are extruded by the inner wall of the conical hole of the printing roller, meanwhile, the ejector rod is moved backwards under the supporting action of the annular convex edge until the outer surface of the supporting block is in line contact with the inner side surface of the conical hole of the printing roller, and at the moment, the spring is compressed, and the positioning of the printing roller is completed.

Compared with the prior art, this a top structure for positioning version roller taper hole has following advantage: the taper holes of different printing rollers can be adapted in a self-adaptive manner, and the application range is wide; and structural design is reasonable, convenient assembling, and the support nature to version roller is good, can effectively improve the stability in the version roller course of working.

Drawings

Fig. 1 is a schematic view of a first state of the tip structure provided by the present invention.

Fig. 2 is a left side view of fig. 1 provided by the present invention.

Fig. 3 is a schematic diagram of a second state of the tip structure provided by the present invention.

In the figure, 1, a positioning cylinder; 2. a top rod; 3. a support block; 4. mounting grooves; 5. a hinged lever; 6. a limiting blocking edge; 7. a spring; 8. an annular convex edge; 9. rounding off; 10. an elastic ring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

The centre structure for positioning the roller taper hole as shown in fig. 1 comprises a positioning cylinder 1 which is rotatably arranged in a chuck seat of a grinding machine, and after the centre structure is installed, the positioning cylinder 1 can rotate around a central axis of the centre structure and is axially fixed. The through-hole that has coaxial setting in the location section of thick bamboo 1 wears to be equipped with in the through-hole and can follow through-hole axial motion's ejector pin 2, and the front end of ejector pin 2 articulates has a plurality of bracers 3 that distribute along the axis annular array of ejector pin 2, and a plurality of bracers 3 constitute conical addendum cone, are equipped with between addendum cone and the location section of thick bamboo 1 to be used for changing the conical adjusting part of addendum cone.

As shown in fig. 1 and 2, the front end of the ejector rod 2 is distributed with a plurality of mounting grooves 4 along the self central axis in an annular array manner, the length direction of the mounting grooves 4 extends along the axial direction of the ejector rod 2, the depth direction extends along the radial direction of the ejector rod 2, the supporting block 3 is hinged in the mounting groove 4 correspondingly arranged with the supporting block through the hinge rod 5, and the minimum distance from the outer surface of the supporting block 3 to the central axis of the ejector rod 2 is greater than the radius of the supporting rod. The supporting blocks 3 are the same in shape and size, and a tip cone formed by the supporting blocks 3 is arranged coaxially with the ejector rod 2. The width of the supporting block 3 is equal to that of the mounting groove 4.

As shown in fig. 2, the outer surface of the supporting block 3 is a cylindrical surface, and the supporting block 3 in the cylindrical surface is in line contact with the tapered hole of the plate roller, so that friction between the supporting block and the tapered hole can be reduced.

As shown in figure 1, the adjusting component comprises a limiting blocking edge 6 arranged at the rear end of the positioning cylinder 1, a spring 7 with the front end abutting against the ejector rod 2 is arranged in the through hole, and the rear end of the spring 7 abuts against the limiting blocking edge 6. The front end of the positioning cylinder 1 is provided with an annular convex edge 8, and the front end of the annular convex edge 8 is provided with a fillet 9.

As shown in fig. 1, the outer surface of the supporting block 3 is provided with a groove perpendicular to the central line of the mandril 2, the grooves of the supporting blocks 3 are positioned on the same annular line of the mandril, and as shown in fig. 2, the grooves are internally provided with elastic rings 10. The elastic rubber is a rubber ring, and the outer diameter of the elastic rubber is smaller than the depth of the groove. The inner side surfaces of the plurality of supporting blocks 3 are always abutted against the rounded corners 9 of the annular convex edges 8 under the action of the elastic rings 10.

Normally, the spring 7 is in an extended state, and the ram 2 moves forward to a forwardmost position, as shown in fig. 1, where the taper of the tip cone formed by the plurality of spacers 3 is minimized by the elastic ring 10. When the plate roller is positioned, the front end of the plate roller is clamped on a chuck of a grinding machine, then the chuck seat is moved, a tip cone formed by a plurality of supporting blocks 3 extends into a conical hole of the plate roller, the chuck seat is moved forwards continuously, the inner wall of the conical hole of the plate roller extrudes the plurality of supporting blocks 3, meanwhile, the ejector rod 2 moves backwards under the supporting action of the annular convex edge 8, as shown in figure 2, until the outer surface of the supporting block 3 is in line contact with the inner side surface of the conical hole of the plate roller, and at the moment, the spring 7 is compressed, and the positioning of the plate roller is completed.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a top structure for fixing a position version roller taper hole, its characterized in that, includes a location section of thick bamboo (1), a location section of thick bamboo (1) in have the through-hole of coaxial setting, the through-hole in wear to be equipped with ejector pin (2) that can follow through-hole axial motion, the front end of ejector pin (2) articulates has a plurality of bracers (3) that distribute along the axis ring array of ejector pin (2), a plurality of bracers (3) constitute conical tip cone, be equipped with between tip cone and a location section of thick bamboo (1) and be used for changing the conical adjusting part of tip cone.

2. The apex structure for positioning the roller taper hole according to claim 1, wherein a plurality of mounting grooves (4) are distributed at the front end of the ejector rod (2) along the central axis of the ejector rod in an annular array, the length direction of each mounting groove (4) extends along the axial direction of the ejector rod (2), the depth direction of each mounting groove extends along the radial direction of the ejector rod (2), the supporting block (3) is hinged in the corresponding mounting groove (4) through a hinge rod (5), and the minimum distance from the outer surface of the supporting block (3) to the central axis of the ejector rod (2) is greater than the radius of the supporting rod.

3. The structure of the apexes used for positioning the tapered holes of a plate roller according to claim 2, wherein the outer surface of the stay block (3) is a cylindrical surface.

4. The centre structure for positioning the conical holes of the plate rollers as claimed in claim 1, wherein the adjusting assembly comprises a limiting stop edge (6) arranged at the rear end of the positioning cylinder (1), a spring (7) with the front end abutting against the ejector rod (2) is arranged in the through hole, and the rear end of the spring (7) abuts against the limiting stop edge (6).

5. The centre structure for positioning the conical holes of a printing roller according to claim 4, characterized in that the front end of the positioning cylinder (1) is provided with an annular flange (8), and the front end of the annular flange (8) is provided with a rounded corner (9).

6. The centre structure for positioning the conical holes of the plate rollers as claimed in claim 5, wherein the outer surfaces of the supporting blocks (3) are provided with grooves perpendicular to the central line of the mandril (2), the grooves on a plurality of supporting blocks (3) are positioned on the same annular line of the mandril, and the grooves are internally provided with the elastic rings (10).