CN220240388U - Auxiliary supporting device for pipe cutting machine - Google Patents

Abstract

The utility model relates to the technical field of pipe cutting machines, in particular to an auxiliary supporting device for a pipe cutting machine, which comprises a first reducing wheel, a second reducing wheel, a first rotating shaft, a second rotating shaft, a first gear, a second gear, a third gear, a fourth gear, a first pin shaft, a second pin shaft, a gear seat, a lifting seat and a motor, wherein the first rotating shaft is connected with the first reducing wheel; the first reducing wheel and the second reducing wheel are symmetrically arranged, the first reducing wheel is connected with the first gear and the motor in series through a first rotating shaft, the second reducing wheel is connected with the fourth gear in series through a second rotating shaft, one side of the gear seat is fixedly connected with the lifting seat, and the second gear and the third gear are connected with the lifting seat through a first pin shaft and a second pin shaft respectively. The device can inhibit the pipe from swinging, simultaneously automatically adapt to different pipe specifications and avoid the damage and scratch on the surface of the pipe.

Description

Auxiliary supporting device for pipe cutting machine

Technical Field

The utility model relates to the technical field of pipe cutting machines, in particular to an auxiliary supporting device for a pipe cutting machine.

Background

The laser pipe cutting machine carries out rotary motion through chuck centre gripping tubular product, and back feeding simultaneously, and to the longer tubular product of length or the tubular product of the pipe wall thinness, pipe diameter are less, can obviously throw when rotatory, influence cutting accuracy, therefore need add auxiliary support device in the middle and support the tubular product of cutting to the unnecessary throwing of restraining tubular product. For this reason, chinese patent discloses a laser pipe cutting machine auxiliary stay device for processing of big pipe diameter tubular product, application number: 202111560114.8, including tubular product and pipe cutting machine base, pipe cutting machine base top one end is equipped with removes the cardboard, peripheral in the middle of the pipe cutting machine base is equipped with the longmen support, be equipped with laser cutting head in the middle of the longmen support top, it is equipped with end strutting arrangement to remove cardboard one end, end strutting arrangement one side is equipped with inner wall strutting arrangement, inside a plurality of outer wall strutting arrangement that are equipped with of pipe cutting machine base, pipe cutting machine base one side is equipped with control module, end strutting arrangement includes the fixing base, fixing base and removal cardboard fixed connection evenly are equipped with a plurality of backup pads on the fixing base outer diameter face, the backup pad tip all is equipped with the supporting wheel, backup pad one end is connected through the pivot with the fixing base, be equipped with the roof between the other end and the fixing base. The mechanism can only realize up-and-down following through cylinder control, the mechanism can not limit the left-and-right swinging of the pipe, has poor follow-up effect on the slender pipe, is easy to collide with the pipe, influences cutting precision, and is not easy to ensure surface quality.

Disclosure of Invention

In order to effectively solve the problems in the background art, the utility model provides an auxiliary supporting device for a pipe cutting machine.

The specific technical scheme is as follows:

an auxiliary supporting device for a pipe cutting machine comprises a first reducing wheel, a second reducing wheel, a first rotating shaft, a second rotating shaft, a first gear, a second gear, a third gear, a fourth gear, a first pin shaft, a second pin shaft, a gear seat, a lifting seat and a motor; the first reducing wheel and the second reducing wheel are symmetrically arranged, the first reducing wheel is connected with the first gear and the motor in series through the first rotating shaft, the second reducing wheel is connected with the fourth gear through the second rotating shaft, the middle parts of the first rotating shaft and the second rotating shaft are respectively connected with the lifting seat through first bearings, the lower parts of the first rotating shaft and the second rotating shaft are respectively connected with the gear seat through second bearings, one side of the gear seat is fixedly connected with the lifting seat, the second gear and the third gear are respectively connected with the lifting seat through a first pin shaft and a second pin shaft, and the first gear, the second gear, the third gear and the fourth gear are sequentially meshed with each other.

Preferably, the lifting seat is connected with a piston rod of a cylinder, and a cylinder body of the cylinder is fixed with the lathe bed through a cylinder mounting seat.

Preferably, two guide rail pairs are arranged on the back of the lifting seat, the sliding blocks of the guide rail pairs are fixed on the base, and the base is connected with the lathe bed.

Preferably, the first reducing wheel and the second reducing wheel are provided with reducing grooves which spiral downwards from top to bottom along the circumferences of the two reducing wheels, and the cambered surfaces become larger gradually.

Compared with the prior art, the utility model has the beneficial effects that: the device utilizes the symmetrically arranged reducing wheels of servo control to realize the purpose of automatically adapting to the pipes with different pipe diameters without manual intervention. The semicircular supporting surface formed by splicing the first reducing wheel and the second reducing wheel is used for supporting and limiting the lower part and the two sides of the pipe, so that the effect that the pipe can freely rotate and cannot swing is achieved, and better cutting precision is achieved.

For irregular pipes or pipes with larger errors, better inhibition effect and higher cutting precision can be realized by fine adjustment of the rotation angle of the reducing wheel, and the method can be realized by a program without any adjustment of hardware.

Because the diameter-variable wheel does not need to follow up from top to bottom in the pipe cutting process, the probability of collision between the pipe and the follow-up support is greatly reduced, and meanwhile, the first diameter-variable wheel and the second diameter-variable wheel are made of wear-resistant self-lubricating nonmetallic materials, so that scratches on the surface of the pipe due to collision are avoided, and the rejection rate is reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a lifting structure according to the present utility model;

FIG. 3 is a schematic view of the general structure of the present utility model;

FIG. 4 is a layout of two reducing wheels in the present utility model;

FIG. 5 is a schematic illustration of a reducing wheel gap in accordance with the present utility model;

FIG. 6 is another schematic view of a reducing wheel gap in accordance with the present utility model;

fig. 7 is a schematic installation view of the present utility model.

Detailed Description

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be oriented 90 degrees or at other orientations and the spatially relative descriptors used herein interpreted accordingly.

The following detailed description of the utility model refers to the accompanying drawings and preferred embodiments. As shown in fig. 1 to 3, an auxiliary supporting device for a pipe cutting machine comprises a first reducing wheel 1, a second reducing wheel 2, a first rotating shaft 3, a second rotating shaft 4, a first gear 5, a second gear 6, a third gear 7, a fourth gear 8, a first pin 9, a second pin 10, a gear seat 11, a lifting seat 12 and a motor 13; the motor adopts a servo motor. The first reducing wheel and the second reducing wheel are symmetrically arranged, the first reducing wheel is connected with the first gear and the motor in series through a first rotating shaft, the output shaft of the motor drives the first gear and the first reducing wheel to rotate, the second reducing wheel is connected with the fourth gear in series through a second rotating shaft, the middle parts of the first rotating shaft and the second rotating shaft are respectively connected with the lifting seat through first bearings, the lower parts of the first rotating shaft and the second rotating shaft are respectively connected with the gear seat through second bearings, one side of the gear seat is fixedly connected with the lifting seat, the second gear and the third gear are respectively connected with the lifting seat through a first pin shaft and a second pin shaft, and the first gear, the second gear, the third gear and the fourth gear are meshed with each other in sequence. Through the mutual engagement of four gears, the synchronous motion of two reducing wheels can be ensured, the gear seat can ensure that the four gears rotate more stably, and the second bearing is fixed on the gear seat through the flange cover.

In order to enable the lifting adjustment of the lifting device, the lifting device is arranged on a lifting mechanism, specifically, the lifting seat is connected with a piston rod of a cylinder 14, the cylinder body of the cylinder is fixed with the lathe bed through a cylinder mounting seat 15, the lifting seat can be driven to lift up and down through the cylinder, in order to enable the lifting seat to run more stably, two guide rail pairs 16 are arranged on the back of the lifting seat, a sliding block of each guide rail pair is fixed on a base 17, and the base is connected with the lathe bed. The lifting seat can stably run relative to the lathe bed through the guide rail pair.

The first reducing wheel and the second reducing wheel are provided with reducing grooves 18 which spiral downwards along the circumferences of the two reducing wheels, and the cambered surfaces become larger gradually.

Working principle: as shown in fig. 4, the servo motor drives the first reducing wheel to rotate in a certain direction through the first rotating shaft, and the second reducing wheel rotates in the opposite direction through the transmission of the first gear and the fourth gear. When the first diameter-variable wheel rotates to a specific angle, the inner sides of the first diameter-variable wheel and the second diameter-variable wheel form symmetrical semi-circles; when the rotation angle of the servo motor is changed, the first reducing wheel and the second reducing wheel synchronously rotate reversely, and the other group of semi-circles is formed; by adjusting the rotation angle of the servo motor, semicircular sections with different diameters can be realized.

As shown in fig. 5 and 6, for the same diameter-variable wheel, the height of the semicircular center of the notch is the same as the distance between the center of rotation of the diameter-variable wheel and the center of rotation of the diameter-variable wheel, and when the diameter-variable wheel rotates around the center of rotation of the diameter-variable wheel, the radius of the notch is increased or decreased in sequence. The specific value of the radius is determined by the circumcircle of the cut pipe, and is usually 1-3mm larger than the circumcircle radius of the pipe.

Therefore, for pipes with different diameters, the auxiliary supporting device does not need to follow up and down when the pipe is cut, only the rotation angle of the diameter-variable wheel is required to be adjusted according to the diameter of a pipe circumcircle, and for a pipe with a certain specific diameter, the diameter-variable wheel can keep the angle unchanged in the cutting process after being adjusted to the corresponding angle, and no additional servo follow-up is needed.

Therefore, the auxiliary supporting device does not need to be driven by a servo in the up-down direction, but only needs to be lifted to a certain fixed height along the vertical direction under the guide of the guide rail by the air cylinder, the specific lifting height is determined by the rotation center of the chuck, and the circle center of the notch of the diameter-variable wheel is generally concentric with the rotation center of the chuck.

As shown in fig. 7, for one machine tool, a plurality of such auxiliary supporting devices may be arranged in the pipe feeding direction.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims (4)

1. Auxiliary stay device for pipe cutting machine, its characterized in that: the device comprises a first reducing wheel, a second reducing wheel, a first rotating shaft, a second rotating shaft, a first gear, a second gear, a third gear, a fourth gear, a first pin shaft, a second pin shaft, a gear seat, a lifting seat and a motor; the first reducing wheel and the second reducing wheel are symmetrically arranged, the first reducing wheel is connected with the first gear and the motor in series through the first rotating shaft, the second reducing wheel is connected with the fourth gear through the second rotating shaft, the middle parts of the first rotating shaft and the second rotating shaft are respectively connected with the lifting seat through first bearings, the lower parts of the first rotating shaft and the second rotating shaft are respectively connected with the gear seat through second bearings, one side of the gear seat is fixedly connected with the lifting seat, the second gear and the third gear are respectively connected with the lifting seat through a first pin shaft and a second pin shaft, and the first gear, the second gear, the third gear and the fourth gear are sequentially meshed with each other.

2. The auxiliary supporting device for a pipe cutting machine according to claim 1, wherein the lifting seat is connected with a piston rod of a cylinder, and a cylinder body of the cylinder is fixed with the machine body through a cylinder mounting seat.

3. The auxiliary supporting device for pipe cutting machine according to claim 2, wherein two guide rail pairs are installed on the back of the lifting seat, the sliding blocks of the guide rail pairs are fixed on the base, and the base is connected with the machine body.

4. The auxiliary supporting device for pipe cutting machine according to claim 1, wherein the first diameter-variable wheel and the second diameter-variable wheel are provided with diameter-variable grooves which spiral downwards along the circumferences of the two diameter-variable wheels and the cambered surfaces become gradually larger.