CN113319740A

CN113319740A - Roller for dressing grinding wheel

Info

Publication number: CN113319740A
Application number: CN202110647982.3A
Authority: CN
Inventors: 刘泽寅
Original assignee: Zhengzhou University
Current assignee: Zhengzhou University
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-08-31

Abstract

The invention discloses a roller for dressing a grinding wheel. The roller body includes a roller body. The roller body includes an axial surface and a radial surface. The axial surface is provided with a boss along the axis of the roller body, and the inner wall of the counterbore is provided with a spline tooth groove. The side of the outer surface of the shaft head close to the spline tooth groove is provided with a spline shaft, the side of the outer surface of the shaft head away from the limit cam is provided with an external thread, and the side of the outer surface of the shaft head close to the external thread is threadedly installed. A cam is installed, a chamfering surface is arranged at the connection between the radial surface and the axial surface, and a rounded surface is arranged at the connection between the chamfering surface and the axial surface. The invention is more suitable for the assembly of the shaft head, it is not easy to jump when the grinding wheel is trimmed, prevent the damage of the grinding wheel, and also is not easy to cause the axial slip after the roller is installed, avoids the machining accuracy of the workpiece from being inaccurate, and is very simple to install. , saves time and effort, has more functions, and has a wider range of use.

Description

Roller for dressing grinding wheel

Technical Field

The invention relates to the technical field of machining, in particular to a roller for trimming a grinding wheel.

Background

The grinding wheel is also called a consolidation grinding tool, and is a consolidation grinding tool which is formed by consolidating common grinding materials into a certain shape (mostly circular, with a through hole in the center) by a binding agent and has certain strength. It is generally composed of abrasive, bond and air holes, which are often referred to as the three elements of a bonded abrasive tool. According to different classes of binders, ceramic (binder) grinding wheels, resin (binder) grinding wheels, and rubber (binder) grinding wheels are common. The grinding wheel is the grinding tool with the largest use amount and the widest use range, rotates at high speed when in use, can perform coarse grinding, semi-fine grinding and fine grinding, slotting, cutting and the like on the excircle, the inner circle, the plane, various molded surfaces and the like of a metal or nonmetal workpiece, and is the most important grinding tool in grinding processing. The grinding wheel is inevitably worn in the process of grinding the workpiece, so that the grinding wheel is often required to be dressed by using a dressing roller, the damaged surface of the grinding wheel is recovered, and the grinding precision of the workpiece is indirectly improved.

Present roller of repairing the emery wheel and the assembly of drive shaft are not laminated enough, appear the condition of beating easily when repairing the emery wheel, damage the emery wheel easily, when repairing the emery wheel that has great wheel base, the condition that the axial skidded appears in the gyro wheel easily on the spindle nose, can lead to the machining precision of work piece to be out of alignment indirectly, and the gyro wheel of present some flange formulas, it is more troublesome again during the assembly, to common mode of polishing like excircle, interior circle, the emery wheel of cutting off, current gyro wheel can only be repaired one of them emery wheel alone, application range is narrower.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides the roller for trimming the grinding wheel, which is fit with the shaft head in assembly, is not easy to jump during trimming the grinding wheel, prevents the grinding wheel from being damaged, is not easy to axially slip after the roller is mounted, avoids the misalignment of the processing precision of a workpiece, is very simple to mount, saves trouble and labor, has more functions and is wider in application range.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a maintain gyro wheel of emery wheel, includes the gyro wheel body, the gyro wheel body includes axial surface and radial surface, axial surface is provided with the boss along the axis of gyro wheel body, the medial surface of boss is provided with the counter bore, the inner wall of counter bore is provided with the spline tooth's socket, the medial surface of spline tooth's socket is pegged graft and is had the spindle nose, one side that the surface of spindle nose is close to the spline tooth's socket is provided with the integral key shaft, one side that the surface of spindle nose is close to the counter bore is provided with spacing cam, one side that spacing cam was kept away from to the surface of spindle nose is provided with the external screw thread, one side screw thread that the surface of spindle nose is close to the external screw thread is installed the installation cam, radial surface is provided with the chamfer machined surface with axial surface's junction, the chamfer machined surface is provided with the fillet machined surface with axial surface's junction.

Preferably, the inner wall of the counter bore and the outer surface of the mounting cam are both subjected to sanding treatment, and the fillet processing surface, the chamfer processing surface and the axial surface are provided with coarse-grained diamond layers.

Preferably, the edges of the bosses are rounded, and the shaft heads, the limiting cams and the mounting cams are all made of GCr15 steel.

Preferably, the inner wall of the spline tooth groove is matched with the shape of the spline shaft, and the number of the bosses is two.

Compared with the prior art, the invention has the beneficial effects that:

1. be provided with spline tooth's socket and integral key shaft, the spline tooth is laminated with the assembly comparison of integral key shaft, and the condition of radial slipping is difficult for appearing, and the moment of torsion that provides when can transmitting the spindle nose rotation steadily prevents to repair in-process gyro wheel body and takes place to beat and damage.

2. The installation cam is arranged, the spline tooth grooves can be firmly clamped after the installation cam is installed, the axial slipping condition is prevented when the roller body does linear motion, and the processing precision of workpieces is prevented from being inaccurate.

3. Be provided with the external screw thread, the gyro wheel body of current flange formula of contrast, the external screw thread is used for installing the wrong income of cam for the installation of gyro wheel body is very simple, and is more laborsaving in trouble.

4. The grinding wheel is provided with an axial surface, a chamfer processing surface and a fillet processing surface, and integrates a plurality of functions of a grinding wheel for finishing an outer circle grinding disc type grinding wheel, a cutting type grinding wheel and a grinding groove type workpiece, so that the application range is expanded.

Drawings

FIG. 1 is a sectional view of a dressing wheel according to the present invention;

FIG. 2 is a front view of a dressing wheel according to the present invention;

FIG. 3 is a schematic view of a spline tooth groove of a roller for dressing a grinding wheel according to the present invention;

FIG. 4 is a schematic view of a radial surface of a wheel for dressing a grinding wheel according to the present invention;

FIG. 5 is a perspective view of the spline shaft of a grinding wheel dressing roller according to the present invention.

In the figure: 1. a roller body; 2. an axial surface; 3. a radial surface; 4. a boss; 5. a counter bore; 6. spline tooth grooves; 7. a shaft head; 8. a spline shaft; 9. a limiting cam; 10. an external thread; 11. installing a cam; 12. chamfering the machined surface; 13. round corner processing surface; 14. a coarse diamond layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, a roller for dressing a grinding wheel comprises a roller body 1, the roller body 1 comprises an axial surface 2 and a radial surface 3, the axial surface 2 is used for dressing a cylindrical side surface of a cylindrical grinding wheel, the axial surface 2 is provided with a boss 4 along the axis of the roller body 1, the inner side surface of the boss 4 is provided with a counter bore 5, the counter bore 5 enables an installation cam 11 and a limit cam 9 to be assembled to clamp a spline tooth groove 6, the inner wall of the counter bore 5 is provided with the spline tooth groove 6, the spline tooth groove 6 is matched with the spline tooth 8 to enable a shaft head 7 to be difficult to radially slide in the roller body 1, the inner side surface of the spline tooth groove 6 is spliced with a shaft head 7, one side of the outer surface of the shaft head 7 close to the spline tooth groove 6 is provided with the spline tooth groove 8, one side of the outer surface of the shaft head 7 close to the counter bore 5 is provided with the limit cam 9, and the limit cam 9 prevents the roller body 1 from being assembled to overtravel, one side that spacing cam 9 was kept away from to the surface of spindle nose 7 is provided with external screw thread 10, external screw thread 10 is used for twisting into installation cam 11, installation cam 11 is installed to one side screw thread that the surface of spindle nose 7 is close to external screw thread 10, radial surface 3 is provided with chamfer machined surface 12 with axial surface 2's junction, chamfer machined surface 12 is used for repairing the radial side chamfer of cutting type emery wheel, chamfer machined surface 12 is provided with fillet machined surface 13 with axial surface 2's junction, fillet machined surface 13 is used for repairing the edge of the emery wheel of ditch class work piece of polishing.

According to the invention, the inner wall of the counter bore 5 and the outer surface of the mounting cam 11 are both subjected to sanding treatment, the sanding treatment can improve the friction coefficient between the inner wall of the counter bore 5 and the outer surface of the mounting cam 11, so that the mounting of the mounting cam 11 is firmer, the radial slipping is not easy to occur, the loosening of the mounting cam 11 is avoided, the round corner processing surface 13, the chamfer processing surface 12 and the axial surface 2 are all provided with the coarse-grained diamond layer 14, the coarse-grained diamond layer 14 is a grinding layer of the roller body 1 and is used for trimming the complex forming surface of the grinding wheel, the coarse-grained diamond layer 14 is hard in texture, is not easy to wear and has a longer service life.

In the invention, the edge of the boss 4 is rounded, the spindle head 7, the limiting cam 9 and the mounting cam 11 are all made of GCr15 steel, and the spindle head 7, the limiting cam 9 and the mounting cam 11 made of GCr15 steel have better wear resistance and anti-fatigue relief performance, higher strength and durability.

In the invention, the inner wall of the spline tooth groove 6 is matched with the appearance of the spline shaft 8, so that the spline tooth groove 6 is more fit with the spline shaft 8, the number of the bosses 4 is two, and the bosses 4 can improve the bending moment bearing capacity when the roller body 1 is used for dressing a grinding wheel and are not easy to break.

When the flange type roller body 1 is used, the roller body 1 is sleeved on the shaft head 7 during installation, so that the spline tooth groove 6 and the spline shaft 8 are assembled well, the inner wall of the spline tooth groove 6 is matched with the appearance of the spline shaft 8, the assembly of the inner wall of the spline tooth groove 6 and the spline shaft 8 is relatively fit, the torque provided when the shaft head 7 rotates can be stably transmitted, the radial slipping condition is not easy to occur, the roller body 1 can be prevented from jumping, then the installation cam 11 is screwed into the counter bore 5 along the external thread 10, the spline tooth groove 6 is firmly clamped, the axial slipping condition when the roller body 1 finishes a grinding wheel to do linear motion is prevented, the processing precision of a workpiece is prevented from being inaccurate, compared with the current flange type roller body 1, the external thread 10 on the shaft head 7 enables the installation of the roller body 1 to be very simple, the trouble and labor are saved, and both the inner wall of the counter bore 5 and the outer surface of the installation cam 11 are subjected to sanding treatment, the installation cam 11 is not easy to loosen, the spindle head 7 is driven to rotate through the motor or the machine tool when the grinding wheel is dressed, the roller body 1 is rotated, when the roller body 1 rotates, the cylindrical side face of the cylindrical grinding wheel in contact with the axial surface 2 can be used for dressing, the radial side face of the cutting type grinding wheel in contact with the chamfer machining face 12 can be used for dressing, the edge of the grinding wheel in contact with a grinding ditch type workpiece can be used for dressing, and the application range is wide.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A roller for dressing a grinding wheel, comprising a roller body (1), characterized in that the roller body (1) comprises an axial surface (2) and a radial surface (3), and the axial surface (2) A boss (4) is provided along the axis of the roller body (1), the inner surface of the boss (4) is provided with a counterbore (5), and the inner wall of the counterbore (5) is provided with a spline tooth groove ( 6), the inner surface of the spline tooth slot (6) is inserted with a shaft head (7), and the outer surface of the shaft head (7) is provided with a spline shaft on the side close to the spline tooth slot (6) (8), a limit cam (9) is provided on the side of the outer surface of the shaft head (7) close to the counterbore (5), and the outer surface of the shaft head (7) is far away from one side of the limit cam (9). An external thread (10) is provided on the side, a mounting cam (11) is threadedly installed on the side of the outer surface of the shaft head (7) close to the external thread (10), and the radial surface (3) is connected to the axial surface ( 2) is provided with a chamfered surface (12), and the connection between the chamfered surface (12) and the axial surface (2) is provided with a rounded surface (13).

2. The roller for dressing grinding wheel according to claim 1, wherein the inner wall of the counterbore (5) and the outer surface of the mounting cam (11) are both sanded, and the rounded surface ( 13) Both the chamfering surface (12) and the axial surface (2) are provided with a coarse-grained diamond layer (14).

3 . The roller for dressing grinding wheel according to claim 1 , wherein the edge of the boss ( 4 ) is rounded, and the shaft head ( 7 ), the limit cam ( 9 ) and the The material of the mounting cam (11) is GCr15 steel.

4 . The roller for dressing grinding wheel according to claim 1 , wherein the inner wall of the spline tooth groove ( 6 ) is consistent with the shape of the spline shaft ( 8 ), and the boss ( 4 ) has a The number is two groups.