CN2930932Y

CN2930932Y - Round tube material milling machine

Info

Publication number: CN2930932Y
Application number: CN 200620024271
Authority: CN
Inventors: 刘庆国
Original assignee: Yanshan University
Current assignee: Yanshan University
Priority date: 2006-04-29
Filing date: 2006-04-29
Publication date: 2007-08-08
Anticipated expiration: 2016-04-29

Abstract

The utility model discloses a round-tubular rolling cutter, which comprises a roller with a turntable, wherein a swing link with a heavy block is hinge jointed with the turntable; and one end of the swing link is hinged to a connecting rod and the other end is hinged with a tool holder with a hob to form a rolling cutter mechamism. The described roller is arranged with a motor pulley. The utility model has the advantages of reasonable overall design, easy operation, and applications in non-chip cutting of metal pipe or non-metal pipe.

Description

A kind of circular tube slitting mill

Technical field

The utility model relates to a kind of tubing and cuts off equipment, specifically relates to a kind of cutting, the circular tube slitting mill of chipless.

Background technology

At present, the circular cross-section tubing slitting mill of using on the tubulation production line, the radially feed of its hobboing cutter all is to adopt hydraulic way, needs configuration hydraulic system and movement transferring.Have whole mechanism complexity, the production cost height, and feed synchronized movement difference easily breaks down.Cause mechanism's complicated problems for solving the hydraulic radial feed mode, in disclosed bibliographical information, invent two rotary bodies of a kind of employing gear mechanism control and can produce speed discrepancy, utilize relative rotation speed high turn on cam bit is set, radial end face by cam bit cooperates the feed force that entad forms with the rolling cut cutter, finish radially rolling cut.No matter this slitting mill all is better than hydraulic way from the design of mechanism and on using.But unique problem is, because the interruption cam bit that adopts cooperates with the rolling cut device, and promptly can only admission.Like this after a cut-out job is finished, during next work to be recycled, wherein related withdrawing mode need be reversed and be finished withdrawing.Therefore, this mechanism not only causes the impact of mechanism in using, but also has influenced operating efficiency, also brings operational inconvenience simultaneously.So can not reach desirable effect in actual applications, must be improved and improve.

The utility model content

The purpose of this utility model is for addressing the above problem, and a kind of centrifugal force that rotation or braking produced that utilizes rotary body is provided, a kind of circular tube slitting mill of control rolling and cutting mechanism advance and retreat cutter.

Technical solution of the present utility model is finished like this: a kind of circular tube slitting mill, has a hinged fork that has pouring weight on the rotating disk of rotating cylinder body end, this fork other end articulated linkage, be installed in the rolling and cutting mechanism that the knife rest that is provided with hobboing cutter in the rotating disk radial groove is formed by rod hinge connection, be provided with a reset tension spring at the hinged end of described fork and connecting rod; Electrical machine belt pulley directly is housed on the described rotating cylinder.When rotating cylinder rotated, the relative knife rest of pouring weight quality in the rolling and cutting mechanism on the rotating disk was big, and was in the outer ring swing of rotating disk, produced entad motion by overcoming knife rest centrifugal force, acted on hobboing cutter and cut off tubing along circumferentially rolling; When braking, pouring weight resets under the effect of a spring that resets, and promptly finishes tool backlash movement.

In this was novel, the pin joint of described fork was to should be greater than the pin joint of the fork distance to connecting rod and knife rest pin joint with the length sum of the pin joint of connecting rod and connecting rod and knife rest pin joint, made the angle of 90 °-180 ° of formation between fork and connecting rod.

In this is novel, more than one rolling and cutting mechanism is set at least on the described rotating disk.Can improve rolling cut efficient like this.And the rolling cut of this rolling and cutting mechanism and suitable metal tubing, be specially adapted to be cut with the copper pipe of non-ferrous metal tube material, the plastic tube and the PAP of aluminum pipe nonmetallic materials.

A kind of circular tube slitting mill of the present utility model because of having adopted the coherence pouring weight, by the radial feed of pendulum, connecting rod control knife rest, is realized the cut-out of knot tubing, when braking, by the extension spring effect pouring weight retraction is resetted, control knife rest withdrawing.In addition, this slitting mill utilizes also that rotation is simplified directly to be connected with drive unit, and the overall structure that makes it slitting mill is simple, and is reasonable in design, utilize mechanics principle can finish rolling cut and move, so have easy to operate, broad-spectrum characteristics.

Description of drawings

Fig. 1 is this novel structural representation.

Fig. 2 is that the A of Fig. 1 is to schematic diagram.

The specific embodiment

Below in conjunction with accompanying drawing embodiment, to this novel being described in further detail.

By Fig. 1, a kind of circular tube slitting mill shown in Figure 2, have a frame 3, on this frame 3, be provided with the rotating cylinder 2 that can rotate thereon.One end of described rotating cylinder 2 and electrical machine belt pulley 1 are connected to rotating cylinder 2 power are provided; Have the rotating disk 4 of a diameter on the body of the other end of this rotating cylinder 2, and rolling and cutting mechanism radially is housed at rotating disk 4 greater than rotating cylinder 2 diameters.At the longitudinal end of described rotating disk 4, the rotating shaft 5 hinged forks 7 by axial setting make an end of its fork 7 that pouring weight 6 is housed; The hinged connecting rod 8 of the other end, and establish a reset tension spring 11 at the hinged end of two bodies is connected on the rotating disk 4, and its effect is during in order to Brake stop, and the control knife rest withdraws from.The other end of this connecting rod 8 is hinged on the other end of the knife rest 9 that has hobboing cutter 10.Described knife rest 9 is installed in the rotating disk 4 end face radial grooves, make its knife rest 9 can be in its chute of base radially displacement and the rolling and cutting mechanism formed.

Rotating shaft 5 pin joints of the fork 7 that the utility model is related to the length sum of the pin joint of connecting rod 8 and connecting rod 8 and knife rest 9 pin joints should be greater than the pin joint of fork 7 distance to connecting rod 8 and knife rest 9 pin joints; Form 90 °-180 ° angle by

fork

7 and 8 on connecting rod.The centrifugal action that produces when pouring weight 6 rotations increases the angle between fork 7 and the connecting rod 8 gradually, thereby makes knife rest 9 produce the feed campaign; Otherwise pouring weight 6 centrifugal force when stopping brake reduces, and under the effect of extension spring 11, the angle theta between fork 7 and the connecting rod 8 is reduced, and acts on knife rest 9 this moment and produces the withdrawing motion.

The related hobboing cutter mechanism of the utility model is provided with one at least on rotating disk 4.Set three rolling and cutting mechanisms on rotating disk 4 of present embodiment are 120 ° of distributions.Can increase in right amount or subtract according to the material difference of required rolling cut.This slitting mill is applicable to metal pipe material or nonmetal tubing, as copper pipe, aluminum pipe, PAP, plastic tube etc.

The slitting mill that this is novel drives rotating cylinder 2 by electrical machine belt pulley 1 and rotates, and the rolling and cutting mechanism on it rotates thereupon synchronously.When the quality of the pouring weight in the rolling and cutting mechanism 6 compares knife rest 9 when big, according to mechanics principle, the theory that the centrifugal force that produces when object is made circular motion is directly proportional with quality and radius is so pouring weight 6 has overcome the centrifugal force of knife rest 9, produce entad motion, at this moment act on hobboing cutter 10 incision tubing to cutting off; When braking rotating cylinder 2,, drive knife rest 9 withdrawings because the effect of reset tension spring 11 makes it pouring weight 6 retractions and resets.

Claims

1, a kind of circular tube slitting mill, comprise the rotating disk that rotating cylinder and end thereof are provided with, it is characterized in that, have at rotating disk (4) and go up a hinged fork (7) that has pouring weight (6), the one end articulated linkage (8) of this fork (7), the knife rest (9) that has hobboing cutter (10) by connecting rod (8) other end and is hinged the rolling and cutting mechanism of composition; Hinged end at described fork (7) and connecting rod (8) is provided with a back-moving spring (11); Electrical machine belt pulley (1) is housed on the described rotating cylinder (2).

2, press the described slitting mill of claim 1, it is characterized in that, the pin joint of described fork (7) is to should be greater than the pin joint of fork (7) distance to connecting rod (8) and knife rest (9) pin joint with the length sum of the pin joint of connecting rod (8) and connecting rod (8) and knife rest (9) pin joint, makes the angle of 90 °-180 ° of formation between fork (7) and connecting rod (8).

3, by the described slitting mill of claim 1, it is characterized in that described rotating disk is provided with more than one rolling and cutting mechanism on (4) at least.