CN214443594U

CN214443594U - Clamping structure for machining worm gear to be machined on vertical gear hobbing machine

Info

Publication number: CN214443594U
Application number: CN202023224683.9U
Authority: CN
Inventors: 李胜; 施璐平; 王文才
Original assignee: HANGZHOU SUPERIOR TRANSMISSION MACHINERY CO LTD
Current assignee: HANGZHOU SUPERIOR TRANSMISSION MACHINERY CO LTD
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-10-22
Anticipated expiration: 2030-12-28

Abstract

The clamping structure for processing the worm gear to be processed on the vertical gear hobbing machine comprises a worm gear supporting tube, a worm gear clamping piece and a clamping piece pull rod. The inner surface of the worm wheel supporting tube is formed by sequentially connecting an upper cylindrical surface, a middle circular table surface and a lower cylindrical surface. The diameter of the upper end of the middle circular table surface is larger than that of the lower end. The outer surface of the upper end of the worm wheel clamping piece is a circular table top with the diameter of the upper end larger than that of the lower end and is contacted with the middle circular table top. The upper end of the worm wheel clamping piece is provided with a clamping process crack, and the middle end of the worm wheel clamping piece is provided with a clamping process hole. The outer cylindrical surface and the lower cylindrical surface of the lower end of the worm gear clamping piece are matched, and the lower end of the worm gear clamping piece is provided with an internal thread. The worm gear clamping piece is arranged in the worm gear supporting pipe. The upper end of the clamping piece pull rod is in threaded connection with the lower end of the worm wheel clamping piece. The utility model discloses simple structure, manufacturing is easy, and convenient to use is reliable.

Description

Clamping structure for machining worm gear to be machined on vertical gear hobbing machine

Technical Field

The utility model relates to a press from both sides tight worm gear's device when processing worm wheel on vertical gear hobbing machine.

Background

The method for machining the worm gear by using the vertical gear hobbing machine is a good method for machining the worm gear. Machining worm gears with vertical hobbing machines involves problems with the mounting and clamping of the worm gear on the hobbing machine. Application No. 201610571520.7, grant publication No. CN 106112133B, entitled "a vertical hobbing machine" discloses a vertical hobbing machine: "including frame, bracket and the stand of setting in the frame, set up the workstation on the bracket, set up gear hobbing unit head assembly, its characterized in that on the stand: the hobbing power head assembly comprises a hobbing cutter mounting device, a hobbing rotary device and a cutter fleeing device, wherein the hobbing cutter mounting device comprises a relay shaft assembly and a cutter fleeing spline shaft, the relay shaft assembly comprises a spline sleeve fixedly arranged on a hobbing rotary table, the spline sleeve is matched with the upper section of the cutter fleeing spline shaft, the lower section of the cutter fleeing spline shaft is fixedly connected with a flat key groove arranged in a center hole of a hobbing cutter, the cutter fleeing spline shaft is provided with a center hole, a T-shaped pull rod is inserted into the center hole, and a plurality of disc springs are sleeved on the pull rod between the pull rod head and the upper end part of the cutter fleeing spline shaft; the upper end surface of the pull rod is abutted against the lower end surface of the disc spring ejector rod, and the disc spring ejector rod is connected with a piston rod of a hobbing cutter tensioning oil cylinder; the upper end surface of the pull rod is matched with the cutter buckle component. The structure of installing and clamping the component to be processed is complex.

Disclosure of Invention

The main purpose of the present invention is to provide a worm wheel clamping device which has a simple structure and can quickly and firmly fix a worm wheel to be processed on a vertical hobbing machine.

The utility model discloses used technical scheme is: a clamping structure for machining a worm gear to be machined on a vertical gear hobbing machine is characterized in that the upper end and the lower end of a main body of the worm gear to be machined are respectively provided with a worm gear shaft section. Comprises a worm wheel supporting tube, a worm wheel clamping piece and a clamping piece pull rod;

the inner surface of the worm wheel supporting tube is formed by sequentially connecting an upper cylindrical surface, a middle circular table surface and a lower cylindrical surface. The diameter of the upper end of the middle circular table surface is larger than that of the lower end;

the outer surface of the upper end of the worm wheel clamping piece is a circular table top with the diameter of the upper end larger than that of the lower end and is contacted with the middle circular table top. The upper end of the worm wheel clamping piece is provided with a clamping process crack. The outer diameter of the middle end of the worm wheel clamping piece is smaller than the diameter of the outer cylindrical surface of the lower cylindrical surface, and the diameter of an inner hole of the middle end of the worm wheel clamping piece is larger than the inner diameter of the upper end of the worm wheel clamping piece; the outer cylindrical surface and the lower cylindrical surface of the lower end of the worm gear clamping piece are matched, and the lower end of the worm gear clamping piece is provided with an internal thread;

the worm wheel clamping piece is arranged in the worm wheel supporting pipe; the upper end of the clamping piece pull rod is in threaded connection with the lower end of the worm wheel clamping piece.

Here, the central angle of the middle circular table surface enables the worm wheel clamping piece to clamp a section of worm wheel shaft below the worm wheel to be processed, and then the worm wheel to be processed can be fixed on the processing position if enough upward thrust is not applied to the worm wheel clamping piece. The worm wheel supporting tube is connected with a transmission mechanism of the vertical gear hobbing machine, and the clamping piece pull rod is connected with a piston of a stretching oil cylinder. When the worm gear clamping device is used, a worm gear shaft below the to-be-machined worm gear extends into an inner hole in the upper end of the worm gear clamping piece, and a main body of the to-be-machined worm gear is supported on the upper end face of the worm gear supporting tube. And starting the stretching oil cylinder to pull the clamping piece pull rod downwards to drive the worm wheel clamping piece to move downwards so as to firmly fix the worm wheel to be processed on the processing position, so that the worm wheel to be processed can be correspondingly processed. The novel, simple structure of this implementation, work efficiency is high.

Preferably, the middle end of the worm wheel clamping piece is provided with a clamping process hole, the distance between the left side surface and the right side surface of the clamping process hole is larger than the distance between the left side surface and the right side surface of the clamping process crack, and the lower end of the clamping process crack is communicated with the upper end of the clamping process hole. By reasonably matching the sizes of the clamping process cracks and the clamping process holes, the clamping efficiency of the worm gear to be processed by the worm gear clamping piece can be greatly improved.

Preferably, the worm wheel supporting pipe is formed by detachably connecting a supporting pipe upper pipe and a supporting pipe lower pipe; the lower end surface of the worm gear clamping piece is positioned above the lower end surface of the upper pipe of the supporting pipe. During operation, the supporting pipe lower pipe drives the supporting pipe upper pipe to rotate, and then a corresponding processing operation flow can be entered. This preferred scheme is convenient for the utility model discloses installation and dismantlement on gear hobbing machine.

To sum up, the utility model discloses simple structure, manufacturing is easy, and convenient to use is reliable.

Drawings

FIG. 1: the structure of the utility model is shown schematically;

FIG. 2: the structure of the worm wheel clamping piece is schematic;

in the figure: the worm wheel clamping device comprises a worm wheel to be machined 1, a worm wheel to be machined main body 1.1, a worm wheel shaft 1.2, a worm wheel supporting tube 2, an upper cylindrical surface 2.1, a middle circular table surface 2.2, a lower cylindrical surface 2.3, a supporting tube upper tube 21, a supporting tube lower tube 22, a worm wheel clamping piece 3, an upper end 3.1 of the worm wheel clamping piece, a clamping process crack 3.11, a middle end 3.2 of the worm wheel clamping piece, a clamping process hole 3.21, a lower end 3.3 of the worm wheel clamping piece and a clamping piece pull rod 4.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

As shown in fig. 1 and 2, the present invention includes a worm wheel support tube 2, a worm wheel clamping member 3, and a clamping member pull rod 4. The upper end and the lower end of a main body 1.1 of the worm wheel 1 to be processed are respectively provided with a worm wheel shaft 1.2.

The inner surface of the worm wheel supporting tube 2 is formed by sequentially connecting an upper cylindrical surface 2.1, a middle circular table surface 2.2 and a lower cylindrical surface 2.3; the diameter of the upper end of the middle circular table surface 2.2 is larger than that of the lower end. The outer surface of the upper end 3.1 of the worm wheel clamping piece 3 is a circular table top with the diameter of the upper end larger than that of the lower end and is contacted with the middle circular table top 2.2. The upper end 3.1 of the worm wheel clamping piece 3 is provided with a clamping process crack 3.11; the outer diameter of the middle end 3.2 of the worm wheel clamping piece 3 is smaller than the diameter of the outer cylindrical surface of the lower cylindrical surface 2.3, the inner hole diameter of the middle end 3.2 of the worm wheel clamping piece 3 is larger than the inner diameter of the upper end 3.1 of the worm wheel clamping piece 3, the middle end 3.2 of the worm wheel clamping piece 3 is provided with a clamping process hole 3.21, the distance between the left side surface and the right side surface of the clamping process hole 3.21 is larger than the distance between the left side surface and the right side surface of the clamping process crack 3.11, and the lower end of the clamping process crack 3.11 is communicated with the upper end of the clamping process hole 3.21. The outer cylindrical surface of the lower end 3.3 of the worm wheel clamping part 3 is matched with the lower cylindrical surface 2.3, and the lower end 3.3 of the worm wheel clamping part 3 is provided with internal threads. The worm wheel clamping piece 3 is arranged in the worm wheel supporting pipe 2; the upper end of the clamping part pull rod 4 is screwed with the lower end 3.3 of the worm wheel clamping part 3.

Preferably, the worm wheel support pipe 2 is formed by detachably connecting a support pipe upper pipe 21 and a support pipe lower pipe 22. The lower end surface of the worm wheel clamp 3 is located above the lower end surface of the support pipe upper tube 21. Accordingly, the cylindrical surface supporting the lower end of the tube upper 21 constitutes the aforementioned lower cylindrical surface 2.3.

When the worm gear clamping device is used, the worm gear shaft 1.2 below the main body 1.1 of the worm gear 1 to be machined extends into an inner hole at the upper end of the worm gear clamping piece, and the main body 1.1 of the worm gear to be machined is supported on the upper end face of the worm gear supporting pipe 2. And starting a stretching oil cylinder which is not shown in the figure to pull the tension rod of the clamping piece downwards to drive the worm wheel clamping piece to move downwards, and firmly fixing the worm wheel to be processed on a processing position through the combined action of the middle circular table surface 2.2, the clamping process crack 3.11 and the clamping process hole 3.21 so as to perform corresponding processing operation on the worm wheel to be processed.

The above-described embodiments are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Indeed, many equivalent variations in the shapes, constructions and design objectives of the devices according to the present invention are possible. Therefore, all equivalent changes made in the shape, structure and design objectives of the present invention should be considered within the scope of the present invention, i.e. all equivalent changes should be protected by the present invention.

Claims

1. A clamping structure for machining a worm gear to be machined on a vertical gear hobbing machine is characterized in that the upper end and the lower end of a main body (1.1) of the worm gear (1) to be machined are respectively provided with a worm gear shaft (1.2); the method is characterized in that: comprises a worm wheel supporting tube (2), a worm wheel clamping piece (3) and a clamping piece pull rod (4);

the inner surface of the worm wheel supporting tube (2) is formed by sequentially connecting an upper cylindrical surface (2.1), a middle circular table surface (2.2) and a lower cylindrical surface (2.3); the diameter of the upper end of the middle round table top (2.2) is larger than that of the lower end;

the outer surface of the upper end (3.1) of the worm wheel clamping piece (3) is a circular table top with the diameter of the upper end larger than that of the lower end and is in contact connection with a middle circular table top (2.2); a clamping process crack (3.11) is arranged at the upper end (3.1) of the worm wheel clamping piece (3); the outer diameter of the middle end (3.2) of the worm wheel clamping piece (3) is smaller than the diameter of the outer cylindrical surface of the lower cylindrical surface (2.3), and the inner hole diameter of the middle end (3.2) of the worm wheel clamping piece (3) is larger than the inner diameter of the upper end (3.1) of the worm wheel clamping piece (3); the outer cylindrical surface of the lower end (3.3) of the worm gear clamping piece (3) is matched with the lower cylindrical surface (2.3), and the lower end (3.3) of the worm gear clamping piece (3) is provided with an internal thread;

the worm wheel clamping piece (3) is arranged in the worm wheel supporting tube (2); the upper end of the clamping piece pull rod (4) is in threaded connection with the lower end (3.3) of the worm wheel clamping piece (3).

2. The clamping structure for machining the worm wheel to be machined on the vertical hobbing machine according to claim 1, wherein: a clamping technical hole (3.21) is formed in the middle end (3.2) of the worm wheel clamping piece (3), the distance between the left side face and the right side face of the clamping technical hole (3.21) is larger than the distance between the left side face and the right side face of the clamping technical crack (3.11), and the lower end of the clamping technical crack (3.11) is communicated with the upper end of the clamping technical hole (3.21).

3. The clamping structure for machining the worm wheel to be machined on the vertical hobbing machine according to claim 1, wherein: the worm wheel supporting pipe (2) is formed by detachably connecting a supporting pipe upper pipe (21) and a supporting pipe lower pipe (22); the lower end surface of the worm wheel clamping piece (3) is positioned above the lower end surface of the support pipe upper pipe (21).