CN216939618U

CN216939618U - Tensioning disc

Info

Publication number: CN216939618U
Application number: CN202121476110.7U
Authority: CN
Inventors: 董国庆
Original assignee: Beijing Aobo Automotive Electronic & Electric Appliance Co ltd
Current assignee: Beijing Aobo Automotive Electronic & Electric Appliance Co ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2022-07-12
Anticipated expiration: 2031-06-29

Abstract

The utility model discloses a tension disc, which is used for connecting a lathe spindle and a workpiece, and comprises: the elastic body is detachably connected with the lathe spindle, and a through hole is formed in the elastic body in a penetrating mode; and the expansion plug is inserted in the through hole, wherein the workpiece is movably sleeved outside the elastic body, and when the expansion plug is inserted in the through hole, the workpiece is clamped with the elastic body. When the expansion plug is used, the workpiece is sleeved on the elastic body, and then the expansion plug is inserted into the through hole of the elastic body to enable the elastic body to expand outwards, so that the workpiece is clamped on the outer side of the elastic body.

Description

Tensioning disc

Technical Field

The utility model relates to the technical field of lathes. More particularly, the present invention relates to a tension disc.

Background

The lathe comprises a lathe spindle and a chuck arranged at the output end of the lathe spindle, wherein the chuck is a mechanical device for clamping a workpiece. At present, a chuck fixes a workpiece in an inward clamping mode or an outward clamping mode, and the workpiece is deformed before being machined due to the action of external force on the workpiece, so that the produced workpiece is unqualified.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.

It is a further object of the present invention to provide a tension disc that can hold a workpiece while avoiding deformation of the workpiece.

To achieve these objects and other advantages in accordance with the purpose of the utility model, there is provided a tension disc for connecting a lathe spindle and a workpiece, the tension disc comprising: the elastic body is detachably connected with the lathe spindle, and a through hole is formed in the elastic body in a penetrating mode; and the expansion plug is inserted in the through hole, wherein the workpiece is movably sleeved outside the elastic body, and when the expansion plug is inserted in the through hole, the workpiece is clamped with the elastic body.

Preferably, the lathe further comprises a limiting device, the limiting device is connected with the lathe spindle, the elastic body is arranged at one end, far away from the lathe spindle, of the limiting device, and the elastic body is detachably connected with the limiting device.

Preferably, an air cylinder is fixedly arranged on the lathe spindle, an output end of the air cylinder penetrates through the limiting device in a sliding mode and penetrates through the through hole, the expansion plug is detachably and fixedly arranged at the output end of the air cylinder, and one end, close to the lathe spindle, of the limiting device is detachably connected with a cylinder body end of the air cylinder.

Preferably, a shell is sleeved on the outer side of the air cylinder, one end of the shell is fixedly connected with the lathe spindle, the other end of the shell is detachably connected with the limiting device, the air cylinder is fixedly connected with the shell, and the output end of the air cylinder sequentially penetrates through the other end of the shell, the limiting device and the through hole to be detachably connected with the expansion plug.

Preferably, the limiting device is a sleeve, the sleeve is sleeved on the output end of the cylinder and is coaxially arranged with the output end of the cylinder, one end of the sleeve is screwed with the shell, and the other end of the sleeve is detachably connected with the elastic body.

Preferably, the elastic body is a cone-like body, the elastic body and the sleeve are coaxially arranged, and the thin end of the elastic body is connected with the sleeve.

Preferably, the thin end of the elastic body is provided with a connecting block, and the connecting block is screwed with the sleeve.

Preferably, the elastic body is composed of a plurality of elastic blocks, and one end of each elastic block is fixedly connected with the connecting block.

Preferably, the number of the elastic blocks is four, and the section of the elastic body formed by the four elastic blocks, which is perpendicular to the piston rod of the cylinder, is rectangular.

Preferably, a plurality of protrusions are uniformly distributed on the outer side of the elastic body.

The utility model at least comprises the following beneficial effects:

during the use, establish the work piece cover on the elastomer earlier, then peg graft the perforation of elastomer with the inflation stopper in, make the outside inflation of elastomer to make the work piece joint in the elastomer outside, this is novel when fixed work piece, can avoid the work piece to warp.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

FIG. 1 is a schematic structural view of a tension disc according to one embodiment of the present invention;

fig. 2 is a side view of an elastomer according to one embodiment of the present invention.

Reference numerals: the lathe comprises a lathe spindle 1, a workpiece 2, an elastic body 3, a through hole 4, a limiting device 5, an expansion plug 6, a cylinder 7, a shell 8 and an elastic block 9.

Detailed Description

The present invention is described in further detail below with reference to the attached drawings so that those skilled in the art can implement the utility model by referring to the description text.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

As shown in fig. 1-2, the present invention provides a tension disc for connecting a lathe spindle 1 and a workpiece 2, the tension disc comprising: the elastic body 3 is detachably connected with the lathe spindle 1, and a through hole 4 is formed in the elastic body 3 in a penetrating mode; and the expansion plug 6 is inserted into the through hole 4, wherein the workpiece 2 is movably sleeved outside the elastic body 3, and when the expansion plug 6 is inserted into the through hole 4, the workpiece 2 is clamped with the elastic body 3.

In above-mentioned technical scheme, the take-up pulley includes elastomer 3 and inflation stopper 6, this novel shape that does not restrict elastomer 3 and inflation stopper 6, as long as elastomer 3 can joint work piece 2 under the circumstances of inflation can, inflation stopper 6 and perforation 4 looks adaptation, when inflation stopper 6 pegs graft and can make elastomer 3 outwards inflation can in perforation 4. This novel work piece 2 that indicates is work piece 2 that has the jack, according to the jack specification that work piece 2 is different, removable looks adaptation's elastomer 3 and inflation stopper 6. During the use, establish work piece 2 cover on elastomer 3 earlier, then peg graft elastomer 3's perforation 4 with expansion plug 6 in, make elastomer 3 outwards expand to make 2 joints of work piece in the 3 outsides of elastomer, this is novel when fixed work piece 2, can avoid work piece 2 to warp.

In another technical scheme, still include stop device 5, stop device 5 with lathe spindle 1 is connected, elastomer 3 is located stop device 5 keeps away from the one end of lathe spindle 1, elastomer 3 with stop device 5 can dismantle the connection, and this novel shape that does not restrict stop device 5, as shown in fig. 1, when expansion plug 6 grafting elastomer 3, stop device 5 can avoid work piece 2 landing from elastomer 3 with work piece 2 butt.

In another technical scheme, an air cylinder 7 is fixedly arranged on the lathe spindle 1, an output end of the air cylinder 7 penetrates through the limiting device 5 in a sliding mode and penetrates through the through hole 4, and the expansion plug 6 is detachably and fixedly arranged at the output end of the air cylinder 7, wherein one end, close to the lathe spindle 1, of the limiting device 5 is detachably connected with a cylinder body end of the air cylinder 7, the air cylinder 7 is used for controlling the expansion plug 6 to move, and manual insertion of the expansion plug 6 into the through hole 4 of the elastic body 3 is replaced.

In another technical scheme, a shell 8 is sleeved on the outer side of the cylinder 7, one end of the shell 8 is fixedly connected with the lathe spindle 1, the other end of the shell 8 is detachably connected with the limiting device 5, the cylinder 7 is fixedly connected with the shell 8, the output end of the cylinder 7 sequentially penetrates through the other end of the shell 8, the limiting device 5 and the through hole 4 to be detachably connected with the expansion plug 6, and the shell 8 plays a role in protecting the cylinder 7.

In another kind of technical scheme, stop device 5 is the sleeve pipe, the sleeve pipe cover is established on cylinder 7's the output and rather than coaxial setting, sheathed tube one end with casing 8 spiral shell closes, the other end with elastomer 3 can dismantle the connection, when work piece 2 overlaps on elastomer 3, can avoid work piece 2 landing with sheathed tube tip butt, and the sleeve pipe has also played the effect of protection cylinder 7's output simultaneously.

In another technical scheme, the elastic body 3 is a cone-like body, the elastic body 3 and the sleeve are coaxially arranged, the thin end of the elastic body 3 is connected with the sleeve, and the end, far away from the sleeve, of the elastic body 3 is a thick end, so that the expansion plug 6 is easy to insert.

In another technical scheme, the thin end of elastomer 3 is equipped with the connecting block, the connecting block with the sleeve pipe spiral shell closes, in order to connect, this neotype connecting block is the rigidity piece, does not have elasticity promptly, non-deformable.

In another technical scheme, the elastic body 3 is composed of a plurality of elastic blocks 9, one end of each elastic block 9 is fixedly connected with the connecting block, the elastic blocks 9 are not connected with each other, when the expansion plug 6 is inserted into the elastic blocks 9, the elastic blocks 9 are easy to expand all around, and the larger the volume of the expansion plug 6 is, the larger the expanded volume of the elastic body 3 is.

In another technical scheme, the number of the elastic blocks 9 is four, the section of the elastic body 3 formed by the four elastic blocks 9, which is perpendicular to the piston rod of the cylinder 7, is rectangular, and when the expansion plug 6 is inserted, the four elastic blocks 9 can expand all around.

In another technical scheme, a plurality of protrusions are uniformly distributed on the outer side of the elastic body 3, and the plurality of protrusions increase the friction force on the outer side of the elastic body 3, so that the workpiece 2 is prevented from sliding off the elastic body 3.

The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the tension disc of the present invention will be apparent to those skilled in the art.

While embodiments of the utility model have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the utility model pertains, and further modifications may readily be made by those skilled in the art, it being understood that the utility model is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. A tension disc for connecting a lathe spindle and a workpiece, the tension disc comprising:

the elastic body is detachably connected with the lathe spindle, and a through hole is formed in the elastic body in a penetrating mode;

and the expansion plug is inserted in the through hole, wherein the workpiece is movably sleeved outside the elastic body, and when the expansion plug is inserted in the through hole, the workpiece is clamped with the elastic body.

2. The tensioner as in claim 1 further comprising a stop coupled to the lathe spindle, wherein the elastomer is disposed on an end of the stop distal from the lathe spindle, and wherein the elastomer is removably coupled to the stop.

3. The tension disc as recited in claim 2, wherein a cylinder is fixedly disposed on said lathe spindle, an output end of said cylinder slidably extends through said stop means and through said aperture, and said expansion plug is removably secured to an output end of said cylinder, wherein an end of said stop means adjacent said lathe spindle is removably connected to a body end of said cylinder.

4. The tension disc as recited in claim 3, wherein a housing is sleeved outside the cylinder, one end of the housing is fixedly connected with the lathe spindle, the other end of the housing is detachably connected with the limiting device, the cylinder is fixedly connected with the housing, and the output end of the cylinder penetrates through the other end of the housing, the limiting device and the through hole in sequence and is detachably connected with the expansion plug.

5. The tensioner as in claim 4, wherein the limiting means is a sleeve disposed over and coaxially with the output end of the cylinder, one end of the sleeve being threadably engaged with the housing and the other end being removably connected to the elastomer.

6. The tensioner as in claim 5, wherein the elastomer is cone-like, the elastomer being disposed coaxially with the sleeve, the elastomer having a thin end attached to the sleeve.

7. The tensioner as in claim 6, wherein the thin end of the elastomer is provided with a connecting block, the connecting block being threaded with the bushing.

8. The tensioner as in claim 7, wherein the elastomer is comprised of a plurality of elastomeric blocks, each elastomeric block having one end secured to the connecting block.

9. The tension disc as recited in claim 8, wherein the number of the elastic blocks is four, and the cross section of the elastic body composed of four elastic blocks, which is perpendicular to the piston rod of the cylinder, is rectangular.

10. The tension disc as recited in claim 1, wherein a plurality of protrusions are uniformly distributed on the outer side of the elastic body.