CN113977011A

CN113977011A - Novel expansion sleeve of gear grinding tool and gear grinding tool

Info

Publication number: CN113977011A
Application number: CN202111208474.1A
Authority: CN
Inventors: 郑志仪; 任国华
Original assignee: Wuxi Hengyitong Machinery Co ltd
Current assignee: Wuxi Hengyitong Machinery Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-01-28

Abstract

The invention discloses a novel expansion sleeve of a gear grinding tool, which comprises an expansion sleeve body, wherein the expansion sleeve body is arranged on the gear grinding tool, a gear workpiece is sleeved on the outer side of the expansion sleeve body, the expansion sleeve body comprises an inner ring and an outer ring, an annular cavity is formed between the inner ring and the outer ring, an elastic filler is filled in the cavity, a pressing block positioned at the upper end of the elastic filler is movably arranged in the cavity, the upper end of the pressing block extends out of the cavity and is in contact with the gear grinding tool, the elastic filler is pressed downwards by the pressing block, and the elastic filler is elastically deformed under pressure so as to push the outer ring to expand the inner ring of the gear workpiece. The utility model provides a gear grinding frock, includes the shell, install on the shell and be equipped with positioning core axle and pull rod, the last cover of positioning core axle is equipped with including the above-mentioned tight cover that expands. Through the mode, the novel expansion sleeve of the gear grinding tool and the gear grinding tool can ensure that the expansion sleeve effectively expands a workpiece, and are simple in structure, good in using effect, safe and reliable.

Description

Novel expansion sleeve of gear grinding tool and gear grinding tool

Technical Field

The invention relates to the field of expansion sleeves, in particular to a novel expansion sleeve of a gear grinding tool and the gear grinding tool.

Background

The process of grinding the teeth of a gear using a gear grinding machine is called gear grinding. The existing gear grinding machine generally expands the gear through an expansion sleeve of a hydraulic tool clamp, the existing expansion sleeve has poor expansion effect on a workpiece, and the gear grinding machine can possibly cause the looseness of the gear workpiece in gear grinding processing and cannot meet the use requirement.

Disclosure of Invention

The invention mainly solves the technical problem of providing a novel expansion sleeve of a gear grinding tool and the gear grinding tool, which can ensure that the expansion sleeve effectively expands a workpiece, and have the advantages of simple structure, good use effect, safety and reliability.

In order to solve the technical problems, the invention adopts a technical scheme that: the utility model provides a novel tight cover that expands of gerar grinding frock, including the tight cover body that expands, the tight cover body that expands is installed on the gerar grinding frock, the outside cover of the tight cover body that expands is equipped with gear workpiece, including the tight cover body that expands including inner circle and outer lane, form annular cavity between inner circle and the outer lane, the cavity intussuseption is filled with the elastic filling thing, the cavity internalization is equipped with the compact heap that is located the elastic filling thing upper end, the upper end of compact heap stretches out in the cavity to contact with the gerar grinding frock, the compact heap pushes down the elastic filling thing, thereby the elastic filling thing pressurized elastic deformation promotes the inner circle of the tight gear workpiece of outer lane.

In a preferred embodiment of the invention, the lower surface of the compression block completely abuts the upper surface of the elastic filler, and at least 1/3 of the upper end of the compression block extends out of the cavity.

In a preferred embodiment of the invention, the compression block is in clearance fit with the cavity, and the compression block moves up and down in the cavity.

In a preferred embodiment of the present invention, the pressing block is an annular pressing block.

In a preferred embodiment of the invention, the height of the elastic filler accounts for 3/4-4/5 of the depth of the cavity.

In a preferred embodiment of the present invention, the elastic filler is a polyurethane elastomer.

In a preferred embodiment of the invention, the expansion sleeve body is a high-elasticity thin-wall expansion sleeve made of metal.

In order to solve the technical problem, the invention adopts another technical scheme that: the utility model provides a gear grinding tool, which comprises an outer shell, install on the shell and be equipped with positioning core axle and pull rod, the last cover of positioning core axle is equipped with including the above-mentioned tight cover that expands, the inner circle cover of the tight cover body that expands is established at positioning core axle, the cover is equipped with gear workpiece on the outer lane of the tight cover body that expands, the pressure head lower extreme and the compact heap of pull rod laminate mutually, the pull rod descends and drives the pressure head and push down the compact heap, and the compact heap pushes down elastic filler, thereby elastic filler pressurized elastic deformation promotes the inner circle of the tight gear workpiece that expands in outer lane.

The invention has the beneficial effects that: the novel expansion sleeve of the gear grinding tool and the gear grinding tool can ensure that the expansion sleeve can effectively expand a workpiece, and are simple in structure, good in using effect, safe and reliable.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic structural view of a preferred embodiment of the gear grinding tool of the present invention;

FIG. 2 is a partial cross-sectional view of FIG. 1;

the parts in the drawings are numbered as follows: 1. the device comprises a shell, 2, a positioning mandrel, 3, an expansion sleeve body, 301, an inner ring, 302, an outer ring, 303, an elastic filler, 304, a pressing block, 4, a gear workpiece, 7, a pull rod, 701 and a pressure head.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2, a novel expansion sleeve of a gear grinding tool comprises an expansion sleeve body 3, the expansion sleeve body 3 is mounted on the gear grinding tool, a gear workpiece 4 is sleeved outside the expansion sleeve body 3, the expansion sleeve body 3 comprises an inner ring 301 and an outer ring 302, an annular cavity is formed between the inner ring 301 and the outer ring 302, an elastic filler 303 is filled in the cavity, a pressing block 304 located at the upper end of the elastic filler 303 is movably arranged in the cavity, the upper end of the pressing block 304 extends out of the cavity and is in contact with the gear grinding tool, the pressing block 304 presses the elastic filler 303 downwards, and the elastic filler 303 is elastically deformed under pressure so as to push the outer ring 302 to expand an inner ring of the gear workpiece.

In addition, the lower surface of the pressing block 304 completely abuts against the upper surface of the elastic filler 303, and at least 1/3 at the upper end of the pressing block 304 extends out of the cavity.

In addition, the hold down block 304 is clearance fit with the cavity and the hold down block 304 moves up and down within the cavity.

In addition, the compression block 304 is an annular compression block.

In addition, the height of the resilient filler 303 accounts for 3/4-4/5 of the depth of the cavity.

In addition, the expansion sleeve body 3 is a high-elasticity thin-wall expansion sleeve made of metal. The friction force of the metal material is larger, and the structure of the high-elasticity thin wall is easier to be pressed and expanded.

In addition, the elastic filler 303 is preferably a polyurethane elastomer. The elastomeric filler 303 may also be replaced with a highly elastic rubber or other similar elastomeric material.

The utility model provides a gear grinding tool, which comprises an outer shell, install on shell 1 and be equipped with positioning core axle 2 and pull rod 7, the cover is equipped with including the above-mentioned tight cover that expands on the positioning core axle 2, the inner circle 301 cover of tight cover body 3 that expands is established on positioning core axle 2, the cover is equipped with gear workpiece 4 on the outer lane 302 of tight cover body 3 that expands, the pressure head 701 lower extreme and the compact heap 304 of pull rod 7 laminate mutually, pull rod 7 drives pressure head 701 down and pushes down compact heap 304 down, compact heap 304 pushes down elastic filler 303, thereby elastic filler 303 receives the inner circle that the elastic deformation promoted outer lane 302 bloated tight gear workpiece 4. The pull rod 7 is connected with the piston rod through a connecting rod, a hydraulic oil path is arranged in the shell 1 to drive the piston rod to move downwards, and the moving mode of the piston rod is not limited to hydraulic type, and can also be driven through other mechanical structures. The pressure of the pressure head 701 is transmitted to the elastic filler 303 through the pressing block 304, the elastic filler 303 is transversely elastically deformed after being pressed and pushes the outer ring 302 to deform and then expand the inner ring of the gear workpiece 4, a good expansion effect is achieved, the gear workpiece is prevented from loosening, and after the pressing block 304 is loosened in an upward mode by the pull rod 7, the expansion sleeve body 3 and the elastic filler 303 recover elastic deformation.

Different from the prior art, the novel expansion sleeve of the gear grinding tool and the gear grinding tool can ensure that the expansion sleeve can effectively expand a workpiece, and are simple in structure, good in using effect, safe and reliable.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a tight cover of novel expanding of gerar grinding frock, is including the tight cover body that expands, the tight cover body that expands is installed on the gerar grinding frock, the outside cover of the tight cover body that expands is equipped with gear workpiece, a serial communication port, including the tight cover body that expands including inner circle and outer lane, form annular cavity between inner circle and the outer lane, the cavity intussuseption is filled with the elastic filler, the cavity internalization is equipped with the compact heap that is located the elastic filler upper end, the upper end of compact heap stretches out in the cavity to contact with the gerar grinding frock, the compact heap pushes down the elastic filler, thereby the elastic filler pressurized elastic deformation promotes the inner circle of the tight gear workpiece of outer lane.

2. The novel expansion sleeve of the gear grinding tool according to claim 1, wherein the lower surface of the pressing block is completely attached to the upper surface of the elastic filler, and at least 1/3 of the upper end of the pressing block extends out of the cavity.

3. The novel expansion sleeve of the gear grinding tool as claimed in claim 2, wherein the pressing block is in clearance fit with the cavity, and the pressing block moves up and down in the cavity.

4. The novel expansion sleeve of the gear grinding tool according to claim 3, wherein the compression block is an annular compression block.

5. The novel expansion sleeve of the gear grinding tool as claimed in claim 1, wherein the height of the elastic filler accounts for 3/4-4/5 of the depth of the cavity.

6. The novel expansion sleeve of the gear grinding tool as claimed in claim 5, wherein the elastic filler is a polyurethane elastomer.

7. The novel expansion sleeve of the gear grinding tool according to any one of claims 1 to 6, wherein the expansion sleeve body is a high-elasticity thin-wall expansion sleeve made of metal.

8. The utility model provides a gear grinding tool, includes the shell, install on the shell and be equipped with positioning core axle and pull rod, its characterized in that, the last cover of positioning core axle is equipped with including any of claims 1-7 expand tight cover, the inner circle cover of the tight cover body that expands is established on positioning core axle, the cover is equipped with gear workpiece on the outer lane of the tight cover body that expands, the pressure head lower extreme and the compact heap of pull rod are laminated mutually, the pull rod descends and drives the pressure head and push down the compact heap, and the compact heap pushes down the elastic filler, thereby the elastic filler pressurized elastic deformation promotes the inner circle of the tight gear workpiece of outer lane expand.