CN211967262U

CN211967262U - Rotary circular tube clamping device

Info

Publication number: CN211967262U
Application number: CN202020722833.XU
Authority: CN
Inventors: 李萍
Original assignee: Suzhou Saishuola Stainless Steel Product Co ltd
Current assignee: Suzhou Saishuola Stainless Steel Product Co ltd
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2020-11-20
Anticipated expiration: 2030-05-06

Abstract

The utility model discloses a rotatory pipe clamping device relates to machining technical field, including fixing base, pinion and gear wheel. First bearing has been embedded to the first half of fixing base, the hole and the rotation axis one end fixed connection of first bearing, the other end and the disc fixed connection of rotation axis, it has three second bearing, three to embed on the disc second bearing ring shape and evenly distributed are on the disc, the hole and the connecting axle one end of second bearing are connected, the other end fixedly connected with pinch roller of connecting axle, connecting axle middle part fixed mounting have pinion, three the internal meshing of pinion in the gear wheel. The clamping device can clamp the target rotating circular tube more and more tightly, the radial force borne by the rotating circular tube can be increased accordingly, and the rotating circular tube is effectively prevented from axially moving in the working process.

Description

Rotary circular tube clamping device

Technical Field

The utility model relates to the technical field of machining, specifically relate to a rotatory pipe clamping device.

Background

Carry out machining to the pipe, need operate when the pipe is rotatory sometimes, for example at the in-process that carries out the knurling operation to the stainless steel pipe, because the mould has radial force and the effect of axial force simultaneously to the pipe of high-speed rotation, if the pipe is at knurling in-process towards axial motion, can lead to knurling length inhomogeneous, the knurling effect is unstable, and then product quality can receive the influence.

At present, the circular tube is mainly manually and radially held in production, and the axial movement of the steel tube is avoided by the radial clamping force on the steel tube.

Therefore, it is desirable to provide a rotary round tube clamping device that addresses the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a rotatory pipe clamping device to solve the problem that exists among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a rotary circular tube clamping device comprises a fixed seat, a first bearing, a disc, a pinion and a bull gear. First bearing has been embedded to the first half of fixing base, the hole and the rotation axis one end fixed connection of first bearing, the other end and the disc fixed connection of rotation axis, it has three second bearing, three to embed on the disc second bearing ring shape and evenly distributed are on the disc, the hole of second bearing is connected with the one end of connecting axle, the other end fixedly connected with pinch roller of connecting axle, connecting axle middle part fixed mounting have pinion, three the internal gearing of pinion is in the gear wheel.

As a further aspect of the present invention, the pinch wheel is a cam, and the curvature of the profile curve of the cam is gradual.

As a further scheme of the utility model, fixing base both sides fixedly connected with installation base, it has the bolt through-hole to open on the installation base, the installation base is used for this rotatory pipe clamping device's fixed and installation.

As a further aspect of the present invention, one side of the gear wheel near the cam is connected with a three rotating handle, three rotating handle ring-shaped and evenly distributed on the surface of the gear wheel.

As a further aspect of the present invention, the first bearing is a tapered roller bearing or a thrust roller bearing, and the tapered roller bearing or the thrust roller bearing can bear a large axial force.

As a further aspect of the present invention, the pinch roller is an eccentric wheel, the eccentric wheel is circular, and has a through hole therein, the through hole is eccentrically disposed.

To sum up, the beneficial effects of the utility model are that:

through the setting of gear wheel, pinion and tight pulley of clamp, can press from both sides the rotatory pipe of target, rotatory pipe is when rotatory moreover, because the frictional force effect, three tight pulley of clamp can press from both sides the rotatory pipe of target more tight, and the radial force that the rotatory pipe received also can increase thereupon, can effectively prevent rotatory pipe to carry out axial displacement at the course of the work.

Drawings

Fig. 1 is a front view of a rotary round tube clamping device according to embodiment 1 of the present invention.

Fig. 2 is a left side view of a rotary round tube clamping device according to embodiment 1 of the present invention.

Fig. 3 is a partial three-dimensional view of a in fig. 2.

Fig. 4 is a front view of a rotary round tube clamping device according to embodiment 2 of the present invention.

Reference numerals: 1-a fixed seat, 2-an installation base, 3-a bolt through hole, 4-a rotating handle, 5-a pinion, 6-a bull gear, 7-a cam, 8-a connecting shaft, 9-a first bearing, 10-a disc, 11-a rotating shaft, 12-a second bearing and 13-an eccentric wheel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following description of the present invention with reference to the accompanying drawings and specific embodiments will explain the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

Referring to fig. 1, 2 and 3, a rotary round tube clamping device includes a fixed base 1, a pinion gear 5, a bull gear 6 and a cam 7. First bearing 9 has been embedded to fixing base 1 first half, the hole of first bearing 9 and the one end fixed connection of rotation axis 11, the other end and the 10 fixed connection of disc of rotation axis 11, it has three second bearing 12, three to embed on the disc 10 second bearing 12 annular and evenly distributed are on disc 10, the hole of second bearing 12 is connected with the one end of connecting axle 8, the other end fixedly connected with cam 7 of connecting axle 8, the curved camber of profile of cam 7 is gradual change, 8 middle part fixed mounting of connecting axle have pinion 5, three the internal meshing of pinion 5 is in gear wheel 6.

The fixing seat is characterized in that mounting bases 2 are fixedly connected to two sides of the fixing seat 1, bolt through holes 3 are formed in the mounting bases 2, and the mounting bases 2 are used for fixing and mounting the rotary circular tube clamping device.

The first bearing 9 is a tapered roller bearing or a thrust roller bearing, and the two bearings can bear large axial force.

One side, close to the cam 7, of the large gear 6 is connected with three rotating handles 4, the three rotating handles 4 are evenly distributed on the surface of the large gear 6 in an annular mode, the rotating handles 4 are used for rotating the large gear 6, and finally a rotating circular tube is clamped.

Example 2

Referring to fig. 4, the rotary round tube clamping device comprises a fixed seat 1, a pinion 5, a gearwheel 6 and an eccentric wheel 13. First bearing 9 has been embedded to fixing base 1 first half, the hole of first bearing 9 is connected with the one end of rotation axis 11, the other end and the 10 fixed connection of disc of rotation axis 11, it has three second bearing 12, three to embed on the disc 10 second bearing 12 annular and evenly distributed are on disc 10, the hole of second bearing 12 is connected with the one end of connecting axle 8, the other end fixedly connected with eccentric wheel 13 of connecting

axle

8, 8 middle part fixed mounting of connecting axle have pinion 5, three the internal meshing of pinion 5 is in gear wheel 6.

The eccentric wheel 13 is circular, and is internally provided with a through hole which is eccentrically arranged.

The first bearing 9 is a tapered roller bearing or a thrust roller bearing, and both bearings can bear large axial force.

One side, close to the eccentric wheel 13, of the large gear 6 is connected with three rotating handles 4, the three rotating handles 4 are evenly distributed on the surface of the large gear 6 in an annular mode, and the rotating handles 4 are used for rotating the large gear 6 and finally clamping a rotating circular tube.

The embodiment of the utility model provides a working process does: firstly, one end of a rotating circular tube is placed between the three eccentric wheels 13, then the rotating handle 4 is rotated by hands, the rotating handle 4 drives the large gear 6 to rotate, the large gear 6 continuously drives the three small gears 5 to rotate, and the eccentric wheels 13 rotate along with the small gears 5 until the target rotating circular tube is clamped tightly. The rotating direction of the rotating handle is kept consistent with the rotating direction of the target rotating circular tube, so that when the rotating circular tube rotates, due to the action of friction force, the target rotating circular tube is clamped more and more tightly by the three eccentric wheels 13, the radial force borne by the rotating circular tube is increased accordingly, and the rotating circular tube can be effectively prevented from axially moving in the working process.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. A rotary round tube clamping device comprises a fixed seat (1), a first bearing (9), a pinion (5) and a bull gear (6), it is characterized in that a first bearing (9) is embedded in the upper half part of the fixed seat (1), the inner hole of the first bearing (9) is fixedly connected with one end of the rotating shaft (11), the other end of the rotating shaft (11) is fixedly connected with the disc (10), three second bearings (12) are embedded in the disc (10), the three second bearings (12) are annularly and uniformly distributed on the disc (10), the inner hole of the second bearing (12) is connected with one end of the connecting shaft (8), the other end fixedly connected with pinch roller of connecting axle (8), connecting axle (8) middle part fixed mounting has pinion (5), three pinion (5) crescent in gear wheel (6).

2. The rotary pipe gripping apparatus according to claim 1, wherein the gripping wheel is a cam (7), and the curvature of the profile curve of the cam (7) is gradual.

3. The rotary round tube clamping device as claimed in claim 2, characterized in that three rotary handles (4) are connected to the side of the gearwheel (6) close to the cam (7), and the three rotary handles (4) are annularly and uniformly distributed on the surface of the gearwheel (6).

4. The rotating round tube clamping device as claimed in claim 3, wherein the two sides of the fixed seat (1) are fixedly connected with mounting bases (2), and the mounting bases (2) are provided with bolt through holes (3).

5. A rotary round tube clamping device as claimed in claim 4, characterized in that the first bearing (9) is a tapered roller bearing or a thrust roller bearing.

6. A device for clamping rotating round tubes as in claim 1, characterized in that the clamping wheel is an eccentric (13), the eccentric (13) being circular and having a through hole in it, the through hole being eccentrically located.