KR200181003Y1 - Pipe to widen tube and machine to diminish face - Google Patents

Abstract

The present invention simplifies the work process by simultaneously chamfering and expanding the work with a single machine, and improves productivity by convenient and simple process work, and achieves good chamfering and expansion state so as to prevent leakage of the joint part after piping work. A pipe expansion and chamfering machine that improves product reliability by safe use.

This expansion pipe and chamfering machine is fixed to the pipe chamfering means to chamfer the end of the pipe by approaching the chamfering bite connected to the motor and to fix the pipe chamfered from the chamfering means, It includes expansion means for advancing the cylinder rod to the front surface and the predetermined range is expanded by the driving force. Accordingly, the stainless steel pipe of simple thickness can be easily chamfered and expanded with a single machine to shorten the labor time, improve productivity, achieve perfect contact with the contact area, and prevent leaks on the contact area so that the airtightness is excellent. The effect is to achieve a safe use.

Description

PIPE TO WIDEN TUBE AND MACHINE TO DIMINISH FACE}

The present invention relates to a machine for expanding and chamfering steel pipes used in various plumbing facilities. More specifically, the present invention simplifies the work process by simultaneously chamfering and expanding a single machine and improves productivity by convenient and simple work. The present invention relates to a pipe expansion and chamfering machine which improves product reliability through safe use by achieving a good chamfering and expansion state and preventing leakage of joints after piping work.

In general, stainless steel pipes, which are widely used in the construction of various piping facilities, are used for various purposes such as water pipes, cooling and heating, and cooling water for rust and less corrosion.

These stainless steel pipes are expensive because the thickness of the pipe to be processed for joint coupling is expensive, and there is a problem in that it is uneconomical and inconvenient to use because of the difficulty in processing the pipe having a thick thickness.

The present invention was devised to solve such a conventional problem, by simply and easily chamfering and expanding a stainless steel pipe having a thin thickness to make contact between the steel pipes completely in close contact with each other so that no leakage occurs. It is an object of the present invention to provide a pipe expansion and chamfering machine that has excellent airtightness and prevents contact parts from being separated even under high pressure, thereby achieving safe use.

The present invention for achieving the above object is to fix the pipe chamfered by chamfering the front end of the pipe by accessing the chamfering bite connected to the motor to drive the cut pipe, and fixed and chamfered pipe from the chamfering means, It is achieved by a pipe expansion and chamfering machine, characterized in that it comprises an expansion means for advancing the cylinder rod to the front of the pipe is expanded by a predetermined driving force.

Wherein the chamfering means is a chamfering bite installed on the rotating shaft of the hydraulic motor, birds slid in the longitudinal direction to correspond to the chamfering bite, a rotary shaft disposed in the center of the birds to make the fixed block reciprocating linearly according to the rotational direction It is preferable to constitute.

Wherein the expansion means is a frame holding the up and down block for fixing the chamfered pipe, the cylinder is installed in the lower end of the vertical reciprocating drive, connected to the rod of the cylinder to guide the vertical movement force to the upper block to achieve the lifting operation It is preferable to include a cylinder with a shaft rod and a cylinder rod built in the axially horizontal movement corresponding to one side of the vertical block.

The cylinder rod further includes a spiral groove formed on an outer circumferential surface, and the cylinder installed at the lower end of the frame is preferably fixed by supporting plates disposed at both ends of the spiral shaft installed in the horizontal direction.

1 is a perspective view of a machine to which the expansion and chamfering device according to the present invention is applied,

2 is a main perspective view of the expansion device according to the present invention,

Figure 3 is a sectional view of the main part showing a state in which the pipe is fixed and expanded through the expansion device according to the present invention,

Figure 4 is a plan view of a state supporting the tip of the pipe in the expansion device according to the present invention,

Figure 5 is a perspective view of the main part of the chamfering device according to the present invention,

Figure 6 is a sectional view of the main part of the chamfered state of the pipe according to the present invention,

7 is an operation state diagram of the fixed block according to the present invention,

8 is a perspective view of main parts of the pipe expanded by the present invention.

Explanation of symbols on main parts of drawing

12; Pipe 14; Hydraulic Motor

15,15a; Fixed block 16; Chamfer

17; Axis of rotation 19; Birds

22; Cylinder rod 32,32a; Top and bottom block

34; Frame 36; cylinder

37; Load 40; Information board

42; Cylinder 44; Machine body

46; Spiral groove 48; Spiral shaft

50,50a; Support plate 52; Fixed support

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a machine to which the expansion and chamfering device according to the present invention is applied,

Figure 2 is a main perspective view of the expansion device according to the present invention, Figure 3 is a sectional view of the main part showing a fixed state and expansion state of the pipe through the expansion device according to the present invention, Figure 4 is a pipe in the expansion device according to the present invention 5 is a plan view of the main portion of the chamfering device according to the present invention, the configuration of the pipe expansion and chamfering machine according to the present invention is a pipe expansion and chamfering machine is provided with chamfering means, and expansion means Doing.

After the chamfering means is fixed to the cut pipe 12, the chamfering bit 16 is connected to the hydraulic motor 14 to drive to chamfer the tip of the pipe 12, the expansion means is chamfering Fixing the pipe 12 chamfered from the means, and the cylinder rod 22 to the front of the fixed pipe 12 is configured to expand the predetermined range by the driving force, the chamfering means is a hydraulic motor ( The chamfering bite 16 installed on the rotating shaft of 14 is rotated, and the saddle 19 slides in the longitudinal direction so as to correspond to the chamfering bite 16, and is disposed in the center of the saddle 19 to rotate. It consists of a rotating shaft 17 for linearly reciprocating a pair of fixed blocks 15, 15a along the direction, the extension means is a vertical block (32, 32a) for fixing the chamfered pipe 12 And a frame (34) for holding the frame A cylinder 36 is installed at the bottom of the recess 34 and vertically reciprocates, and is connected to the rod 37 of the cylinder 36 to guide the vertical movement force to the upper block 32 to form a lifting operation 38. The rod 38 is connected to the upper block 32 through the lower block 32a and attached to the guide plate 40 attached to the upper surface of the cylinder rod 37 of the cylinder 36. In addition, a cylinder 42 having a cylinder rod 22 having a axially horizontal movement corresponding to one side of the upper and lower blocks 32 and 32a is provided at the upper end of the machine body 44.

Further, in the outer circumferential surface of the cylinder rod 22 embedded in the cylinder 42 and drawn out, a spiral groove 46 is formed to securely and satisfactorily expand without any resistance even when the diameter of the pipe 12 to be expanded is thick. The pressure of the force to be advanced so as to be unchanged, the cylinder 36 is installed on the lower end of the frame 34 is a spiral installed in the horizontal direction to support the cylinder 36 in the machine body 44 It is fixed by the support plates 50 and 50a disposed at both ends of the shaft 48 to maintain the vertical state when the cylinder 36 operates, thereby achieving a safe operation and maintaining a balance.

On the other hand, on one side of the frame (34) holding the expansion means is mounted pipe (12) to the upper and lower blocks (32, 32a) to the fixed support (52) so as not to protrude forward to the built-in pipe 54 It is built so that one side front is drawn out to the lower block 32a side by a slide movement.

The present invention made of such a configuration is to chamfer one side of the pipe 12 through the chamfering means is installed in the lower end of the machine body 44 for a large amount of cut and expansion at a predetermined interval. That is, when the handle 56 is rotated, the fixed shafts 15 and 15a, which are coupled to the rotary shaft 17 while the rotary shaft 17 rotates, are chamfered by chamfering means through straight reciprocating motions that are moved closer or farther away from the center. Fixing the pipe 12 to the fixing blocks 15, 15a, the fixing portion forms a V-groove to achieve a safe and secure fixing. Subsequently, when the stick lever 58 is reversed to move the upper and lower blocks 15 and 15a on which the pipe 12 is mounted through the saddle 19 to one side, the chamfers rotate by the rotational force of the hydraulic motor 14. One side of the pipe 12 is chamfered by the bite 16 so that the side of the pipe 12 has an even surface. The pipe 12 chamfered in this way is the fixed block 15, 15a is opened by the rotation of the rotary shaft 17 at the same time the pipe 12 is separated and recovered, and then installed on the upper surface of the machine body 44 One side of the pipe 12 is expanded through the expansion means.

That is, the chamfered pipe 12 can be fixed through the upper and lower blocks 32 and 32a provided in the frame 34. In this case, the cylinder rod 37 drawn out by the operation of the cylinder 36 is When drawn out in the vertical movement direction, the guide plate 40 which is disposed on the upper surface of the cylinder rod 37 is connected and the shaft 38 is elevated at the same time, so that the shaft 38 is penetrated by the lower block 32a. The pipe 12 is safely mounted through the upper block 32 and the lower block because it is connected to the block 32 so that only the upper block 32 is elevated.

At this time, when the pipe 12 is mounted on the upper and lower end blocks 32 and 32a, the fixed support 52 embedded in the built-in pipe 54 moves out from the side of the frame 34, and thus the pipe 12 is mounted. ) Length can be fixed to the selected length so that the amount of expansion can be adjusted uniformly.

Therefore, the cylinder rod 22, which is drawn out while the cylinder 42 is operated to the pipe 12 mounted on the upper and lower end blocks 32, 32a, is advanced so that the tip is inserted into the pipe 12 and the pipe diameter is larger than the pipe diameter. It is expanded by the cylinder rod 22 constituting a large diameter to achieve a predetermined expansion operation. On the other hand, the cylinder 36 loses a rigid fixed state in the vertical movement process, if the side shakes up and down the upper and lower blocks 32, 32a for fixing the pipe 12 can be secured to the fixed pipe Since the expansion work becomes poor, the vertical movement of the cylinder 36 is more effective because the cylinder 36 and the machine main body 44 are connected to the support plate 50 and 50a by the ovarian shaft to maintain a more stable and secure fixed state. It becomes stable and solid.

The present invention as described above makes it simple and convenient to chamfer and expand the thin-walled stainless steel pipe with a single machine, which reduces productivity and improves productivity, and makes contact close to the contact area, thereby preventing leakage. It is to provide the effect of achieving a safe use by ensuring excellent confidentiality.

Claims (5)

Chamfering means for chamfering the end of the pipe by accessing the chamfering bite connected to the motor by fixing the cut pipe; Fixing pipe chamfered from the chamfering means, pipe expansion and chamfering machine, characterized in that it comprises an expansion means for advancing the cylinder rod to the front of the fixed pipe and the predetermined range is expanded by its driving force. The method of claim 1; The chamfering means is a chamfering bite installed on the rotating shaft of the hydraulic motor, birds slid in the longitudinal direction to correspond to the chamfering bite, and a rotational shaft disposed in the center of the birds to make the fixed block reciprocating linearly according to the rotational direction Pipe expansion and chamfering machine characterized in that the configuration. The method of claim 1; The expansion means includes a frame holding up and down blocks for fixing the chamfered pipes, a cylinder installed at the bottom of the frame, and a vertical reciprocating cylinder, connected to a rod of the cylinder, to guide the vertical movement force to the upper block to achieve the lifting operation. Pipe and pipe chamfering machine, characterized in that it comprises a rod and a cylinder rod is built in the axially horizontal movement corresponding to one side of the vertical block. The method of claim 3; The cylinder rod pipe expansion and chamfering machine further comprises a spiral groove formed on the outer peripheral surface. The method of claim 3; The cylinder installed at the bottom of the frame is pipe expansion and chamfering machine, characterized in that fixed by the support plates disposed on both ends of the spiral shaft installed in the horizontal direction.