CN216398016U

CN216398016U - Lathe tool for machining thin-walled tube

Info

Publication number: CN216398016U
Application number: CN202122923874.2U
Authority: CN
Inventors: 叶夕波
Original assignee: Chongqing Jiuwei Machinery Manufacturing Co ltd
Current assignee: Chongqing Jiuwei Machinery Manufacturing Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-04-29
Anticipated expiration: 2031-11-25

Abstract

The utility model discloses a lathe tool for machining a thin-walled tube, which comprises an installation frame, wherein the upper end of the installation frame is rotatably connected with a support ring, and a servo push rod is slidably connected with a limiting piece arranged on the support ring and an inner support assembly fixedly connected with the servo push rod in the support ring. The utility model relates to the technical field of machining equipment, and is characterized in that a servo push rod is arranged to be matched with an inner support assembly, when a thin-walled pipe is machined, the inner support assembly is inserted into the thin-walled pipe to serve as a support, so that the thin-walled pipe is prevented from being sunken inwards when clamped, the thin-walled pipe can be prevented from synchronously rotating along with a machine tool in the rotating process, the pipe can be stably clamped, meanwhile, the pipe can be effectively prevented from shaking, and the machining precision is improved.

Description

Lathe tool for machining thin-walled tube

Technical Field

The utility model relates to the technical field of machining equipment, in particular to a lathe tool for machining a thin-wall pipe.

Background

A lathe is a machine tool for turning a rotating workpiece mainly with a lathe tool. And the lathe can also be used for expanding a drill bit, a reamer, a screw tap, a die, a knurling tool and the like to perform corresponding processing, and additionally, devices such as a tailstock and the like are used for assisting in clamping workpieces to perform auxiliary clamping on various workpieces.

In the prior art, for better fixing a workpiece, a chuck is often used for clamping the workpiece, however, when a thin-walled tube is clamped, if the clamping force is too large, the tube is easily clamped and damaged, if the clamping force is too small, the tube is not only easily shaken in the clamping process, but even thrown away, and therefore, a lathe tool for machining the thin-walled tube is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art, and provides a lathe tool for machining a thin-wall pipe.

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

a lathe tool for machining a thin-walled tube comprises a mounting frame, wherein the upper end of the mounting frame is rotatably connected with a support ring, and a servo push rod is slidably connected in the support ring and is positioned on a limiting piece arranged on the support ring and an inner support assembly fixedly connected with the servo push rod;

preferably, the inner supporting assembly comprises a casing fixedly connected with the servo push rod, a bearing is fixedly connected in the casing, an inner supporting rod is detachably connected to the inner wall of the bearing, a plurality of idler wheels are rotatably connected to the side wall of the inner supporting rod, a sliding groove is formed in one end, away from the bearing, of the inner supporting rod, a compression spring is placed in the sliding groove, a sliding rod is slidably connected in the sliding groove, and a push rod is fixedly connected to one end, away from the inner supporting rod, of the sliding rod.

Preferably, the lateral wall fixedly connected with circle shell of bearing, the bell jar has been seted up to the inner wall of circle shell, and the outside threaded connection of circle shell has the stop collar, the inner wall fixedly connected with of stop collar is a plurality of push pedals that encircle the setting.

Preferably, the limiting part comprises a rotating rod rotatably connected with the support ring, a side wall of the rotating rod is fixedly connected with a breast board, and the surface of the breast board is fixedly connected with an anti-skid pad.

Preferably, the lateral wall of push rod is seted up and is encircleed the groove of stepping down that sets up, and steps down the inslot and be connected with the shaft through one-way bearing rotation, the fixed cover of lateral wall of shaft is equipped with the rubber wheel.

Preferably, the side wall of the mounting frame is fixedly connected with a permanent magnetic chuck.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the servo push rod is matched with the internal support assembly, when the thin-walled tube is processed, the thin-walled tube is inserted into the internal support assembly to serve as a support, so that the thin-walled tube is prevented from being sunken inwards when being clamped, and the thin-walled tube is prevented from synchronously rotating along with the rotation of a machine tool, so that the tube can be stably clamped, the tube can be effectively prevented from shaking, and the processing precision is improved;

2. according to the utility model, the slide rod is matched with the push rod, the slide rod with the smaller inner diameter is used for yielding the cutter, so that the cutter is prevented from contacting with the inner support rod when the thin-walled pipe is cut, and meanwhile, due to the compression spring, when the pipe is cut by the cutter after the machining is finished, the cut pipe is driven to move by utilizing the elasticity of the compression spring, so that the interference between the cut pipe and the cutter is prevented, and the damage to the cutter and the damage to a finished product are avoided.

Drawings

FIG. 1 is a schematic view of an overall structure of a lathe tool for machining thin-walled tubes according to the present invention;

FIG. 2 is a schematic structural view of a shell of a lathe tool for machining thin-walled tubes, which is provided by the utility model;

FIG. 3 is a schematic structural view of a position limiting member of a lathe tool for machining a thin-walled tube according to the present invention;

fig. 4 is a schematic cross-sectional structural view of an inner support rod in the lathe tool for processing the thin-walled tube provided by the utility model.

In the figure: 1. a mounting frame; 2. a support ring; 3. a servo push rod; 4. a housing; 5. a bearing; 6. an inner brace rod; 7. a roller; 8. a slide bar; 9. a compression spring; 10. a yielding groove; 11. a round shell; 12. a limiting sleeve; 13. pushing the plate; 14. a rotating rod; 15. a rubber wheel; 16. a permanent magnetic chuck; 17. a breast board.

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. 1-4, a lathe tool for thin-walled tube processing includes a mounting frame 1, a permanent magnetic chuck 16 is fixedly connected to a side wall of the mounting frame 1, in general terms, the mounting frame 1 is directly adsorbed to the side wall of a numerically controlled lathe through the permanent magnetic chuck 16 instead of being directly erected on the ground, so that the tool can be more conveniently operated by a user, the tool is adapted to machine tools with different height models, meanwhile, the size of the mounting frame 1 is reduced to be more conveniently stored, a support ring 2 is rotatably connected to the upper end of the mounting frame 1, a servo push rod 3 is slidably connected to the support ring 2, when the tube is processed, the tube is generally inserted into the numerically controlled lathe through a hole of a main shaft on the side of the numerically controlled lathe, in order to avoid work interference in feeding, the servo push rod 3 is firstly slid to draw out the servo push rod 3 and an inner support assembly, and then the support ring 2 is rotated, at this time, the user can carry out feeding operation, and after the feeding operation is finished, the user rotates the support ring 2 again, aligns the support ring 2 with the main shaft of the numerical control lathe, and then inserts the servo push rod 3 and the inner support rod 6 into the holes, wherein the limit part is arranged on the support ring 2, and the inner support component is fixedly connected with the servo push rod 3;

wherein, the inner support component comprises a shell 4 fixedly connected with the servo push rod 3, a bearing 5 is fixedly connected in the shell 4, a round shell 11 is welded on the side wall of the bearing 5, a tapered groove is arranged on the inner wall of the round shell 11, a limit sleeve 12 is connected with the outer thread of the round shell 11, a plurality of push plates 13 which are arranged in a surrounding way are fixedly connected on the inner wall of the limit sleeve 12, the push plates 13 are made of elastic metal, in the design, because the pipes to be processed have different specification models, and a single inner support rod 6 of the inner support component is only adapted to the pipe with a single inner diameter, when the pipes with different inner diameters are processed, the support rods with different outer diameters are replaced, at the moment, the connection between the bearing 5 and the inner support rod 6 also needs to be adapted to the inner support rods 6 with different outer diameters, in the design, after the inner support rod 6 is inserted into the round sleeve when the inner support rods 6 with different outer diameters are replaced, then the position limiting sleeve 12 is screwed, when the position limiting sleeve 12 is screwed, the push plates 13 are abutted against the inner wall of the conical groove and are bent under the driving of the inner wall of the conical groove, so that the clamping of the inner support rod 6 is completed by utilizing the plurality of push plates 13, the inner support rod can be adapted to the inner support rods 6 with different outer diameters, if the difference of the outer diameters of the inner support rods 6 is too large and exceeds the clamping range of the push plates 13, only the limit rings of the push plates 13 with different sizes to be used are required to be replaced, the side wall of the inner support rod 6 is rotatably connected with a plurality of rollers 7, the positions of the rollers 7 are opposite to the chuck position of a numerical control lathe and are used for balancing the internal stress of the thin-wall pipe, the inner support rod 6 can move along with the servo push rod 3 in a clamping state, a sliding groove is formed in one end, away from the bearing 5, a compression spring 9 is arranged in the sliding groove and is connected with a sliding rod 8 in the sliding groove, and one end, away from the inner support rod 6, is fixedly connected with the push rod 8, the side wall of the push rod is provided with a surrounding abdicating groove 10, the abdicating groove 10 is connected with a rotating rod 14 through a one-way bearing 5 in a rotating way, the one-way bearing 5 is a common part in the prior art, the characteristic is that the one-way bearing 5 can only rotate in one direction, the side wall of the wheel shaft is fixedly sleeved with a rubber wheel 15, the one-way bearing 5 is arranged for reducing the running resistance of the servo push rod 3 and ensuring that a compression spring 9 is in a state with elastic potential energy after the cutting is finished, when a user processes a thin-wall pipe, an internal support component is inserted into the pipe, a numerically controlled lathe runs, the outer wall of the pipe is clamped by using a clamping jaw, the inner wall of the pipe is supported by a roller 7 to avoid the pipe from sinking inwards, then a main shaft of the lathe runs and a tool rest drives a tool to move, and during the cutting process, the servo push rod 3 moves along with the tool synchronously, the servo push rod 3 drives the inner support rod 6 to move, so that the position of the slide rod 8 is aligned with the cutter, even if the cutter penetrates through a thin-walled tube due to machining errors in the cutting process, the cutter cannot be in contact with the inner support rod 6, on the other hand, when the lathe uses the cutting-off cutter to cut off the machined thin-walled tube, the cutting-off cutter is placed to interfere with the inner support rod 6, when boring is carried out, along with the insertion of the boring cutter into the tube, the servo push rod 3 drives the inner support rod 6 to gradually move along with the movement of the boring cutter, the distance that the tube loses the inner support is shortened while the boring cutter is ensured not to interfere with the push rod, the tube is effectively prevented from shaking along with the rotation process of the main shaft, the boring cutter is difficult to accurately machine the tube, when the last cutting-off process is mentioned, the servo push rod 3 carries out one telescopic cycle, and drives the inner support rod 6 and the slide rod 8 to move towards the chuck direction firstly, then the inner support rod 6 and the slide rod 8 are driven to move towards the tool rest direction, namely the compression spring 9 is in a compression state, when the pipe is cut off, the pipe which is cut off can be driven to move towards the direction far away from the cutting knife by the elasticity of the compression spring 9, so that the pipe is prevented from interfering with the tool, and the tool and a finished product are prevented from being damaged, wherein the limiting part comprises a rotating rod 14 which is rotatably connected with the support ring 2, a baffle plate 17 is fixedly connected with the side wall of the rotating rod 14, an anti-skid pad is fixedly connected with the surface of the baffle plate 17, the anti-skid pad is hard rubber or rubber with a smaller elastic coefficient, the position deviation of the slide rod 8 caused by the elastic deformation of the anti-skid pad is avoided while the limiting effect on the servo push rod 3 is ensured, the tool interferes with the inner support rod 6, and the limiting component is used for preventing the servo push rod 3 from operating in the processing process, when the inner support rod 6 is driven to move, the inner support rod slides in the direction far away from the machine tool due to the reaction force, and the stable operation of the tool is ensured.

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 equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a lathe frock is used in thin wall tubular product processing which characterized in that includes:

the upper end of the mounting rack is rotatably connected with a support ring, and a servo push rod is slidably connected in the support ring;

the limiting part is arranged on the supporting ring and the inner support component is fixedly connected with the servo push rod.

2. The lathe tool for processing the thin-walled tube according to claim 1, wherein the inner supporting assembly comprises a shell fixedly connected with a servo push rod, a bearing is fixedly connected in the shell, an inner supporting rod is detachably connected to the inner wall of the bearing, a plurality of rollers are rotatably connected to the side wall of the inner supporting rod, a sliding groove is formed in one end, away from the bearing, of the inner supporting rod, a compression spring is placed in the sliding groove, a sliding rod is slidably connected in the sliding groove, and a push rod is fixedly connected to one end, away from the inner supporting rod, of the sliding rod.

3. The lathe tool for machining the thin-walled tube according to claim 2, wherein a circular shell is fixedly connected to the side wall of the bearing, a tapered groove is formed in the inner wall of the circular shell, a limiting sleeve is in threaded connection with the outer portion of the circular shell, and a plurality of pushing plates which are arranged in a surrounding mode are fixedly connected to the inner wall of the limiting sleeve.

4. The lathe tool for machining thin-walled tubes according to claim 1, wherein the limiting member comprises a rotating rod rotatably connected with the support ring, side walls of the rotating rod are fixedly connected with breast plates, and surfaces of the breast plates are fixedly connected with anti-slip pads.

5. The lathe tool for machining the thin-walled tube according to claim 1, wherein the side wall of the push rod is provided with a circumferentially arranged abdicating groove, the abdicating groove is rotatably connected with a wheel shaft through a one-way bearing, and a rubber wheel is fixedly sleeved on the side wall of the wheel shaft.

6. The lathe tool for machining thin-walled tubes according to claim 1, wherein a permanent magnetic chuck is fixedly connected to the side wall of the mounting frame.