KR970000799Y1 - Machine for cutting tubes - Google Patents

Abstract

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Description

Automatic cutting and chamfering device of pipe

The present invention relates to an apparatus for cutting a pipe formed by a pipe tube to a predetermined length and grinding the cutting surface to chamfer the cutting surface. In particular, the pipe is provided with cutting means and chamfering means in a transfer die reciprocating with a predetermined range. And then automatic cutting and chamfering of the pipes to automatically and quickly perform a series of operations for smooth grinding of the cut surface.

In general, various cutting devices for automatic cutting of pipes have been proposed in various forms. As an example of the cutting device for pipes according to the conventional example, a utility model was filed in Japan on August 5, 1991, and in March 1993. There is Japanese Unexamined Patent Publication No. 5-16052 published on the 2nd.

Japanese Unexamined Patent Application, First Publication No. Hei 5-16052, as shown in Figs. 1 and 2, a rotary cutting end 13 'provided freely in a lifting and lowering manner, a transfer device 3' for transferring a workpiece to a cutting position, and a cutting in 13 Clamping 35 ', 36' for holding and fixing the workpiece at the front and rear sides of the " ", the positioning device 50 'for positioning in contact with the distal end of the workpiece, and the workpiece having the cut dimensions at predetermined positions. And a transmission device 5 'for transmitting, wherein the positioning device 50' includes an end cut positioning device 51 'at the start of cutting of a pair of workpieces, and a subsequent two-stage position for stationary accommodation. It is characterized by including the determining device 52 '.

In the conventional pipe cutting device, the positioning device 50 'is composed of an end cut positioning device 51' and a two-stage stationary positioning device 52 '. Although there was an effect of cutting, both ends of the cut pipe had to be chamfered in a separate process.

That is, in the conventional pipe cutting device, for the production of various pipes, for example, a plate made of a material such as stainless steel is formed into a pipe having a certain diameter by a tube, and then cut to a certain length, and then the cutting surface is to be smoothly ground. In the related art, a pipe having a predetermined diameter is cut to a predetermined length through a cutter, and the cut pipe is loaded at a predetermined place, and the worker grabs the cut pipe one by one to chamfer the cut surface of the pipe by manual chamfering.

Since the pipes cut into the manual chamfering machine must be inserted into the manual chamfering machine as described above, there is a problem that the work time is delayed and the amount of work is not only large, but also the rough cut surfaces of the pipes are not precisely chamfered.

The present invention is devised to solve the above problems, the object of the present invention is to automatically cut by the required length of the pipe while moving the die with the movement of the pipe in the process of transporting the pipe by the tube, It is to provide an automatic cutting and chamfering device for pipes, which allows the cutting surface to be polished and chamfered so that a series of work processes are not interrupted, but are continuously synchronized, thereby reducing the working time.

Automatic cutting and chamfering device of the pipe according to the present invention for achieving the above object is of a pipe consisting of a clamping means for clamping the pipe, and cutting means for cutting the pipe clamped by the clamping means to a predetermined dimension In the automatic cutting device, the front and rear movable plate which is guided to the guide rail so as to be chamfered by both cutting surfaces of the pipe cut by the cutting means and moved in the front and rear direction, and guided by the guide rail to the front and rear movable plate and moved forward and backward Both cut surfaces of the pipe cut by being rotated by a front and rear movable plate, a left and right movable plate guided to the guide rail fixed to the front and rear movable plate, and a motor fixed to an upper portion of the left and right movable plate. Characterized in that the chamfering member for chamfering.

According to the automatic cutting and chamfering apparatus of the pipe according to the present invention, the pipe formed by the tube is cut to an appropriate dimension by the cutting means, and the pipe is moved by a transfer plate or the like on both cut surfaces of the pipe cut by the cutting means. Since the cutting and chamfering of the pipes are continuously performed by the chamfering means so that the cutting and chamfering of the pipes are not interrupted by a series of working processes, the working time is shortened, thereby improving productivity and obtaining a sophisticated product.

1 is a plan view of a cutting device for a pipe applied to the conventional example.

2 is a plan view of a cutting device for a pipe applied to the conventional example.

3 is a plan view schematically showing the operation of the automatic cutting and chamfering device according to the present invention.

4 is a plan view showing an operating state of cutting the pipe by the cutting means of the present invention in the third state.

5 is a plan view of a process in which the moving plate of the clamping means moves in the pipe conveying direction in an operating state in which the cutting means of the present invention retreats and the clamping means clamps the pipe up and down.

Figure 6 is a plan view showing the operating state of chamfering both ends of the pipe chamfered means of the present invention is advanced.

7 is a plan view showing an operating state in which the chamfering means and the clamping means of the present invention retreat and the moving plate of the clamping means is in place.

8 is a plan view of the transfer plate is transported after the cutting and chamfering of the pipe is completed.

9 is a perspective view showing a state in which the cutting means of the present invention cut the pipe.

10 is a perspective view showing a state in which the chamfering means of the present invention to chamfer the end of the cut pipe.

11 is an enlarged cross-sectional view taken along the line VII-VII of FIG. 4.

12 is an enlarged cross-sectional view taken along the line VII-VII of FIG.

＊ Explanation of symbols for main parts of drawing

1: transfer die 2: pipe

3: clamping means 4: cutting means

5: chamfering means 6: support

7: guide rod 8: bracket

9, 14: fixed clamps 10, 15, 1a, 12a, 19a, 24a, 26a: pneumatic cylinder

11, 16: moving clamp 12, 19: moving plate

24: forward and backward moving plate 26: left and right moving plate

13, 18, 25: guide rail 17: fixed plate

20, 27: motor 21, 28: pulley

22, 30: belt 23: cupper

29: chamfering member 31: feed roller

32: limit switch plate 34, 35: holder

Hereinafter, with reference to the accompanying drawings an embodiment of the automatic cutting and chamfering device of the pipe according to the present invention will be described in detail.

Figure 3 is a plan view schematically showing the operation before the automatic cutting and chamfering device according to the present invention, Figure 4 is a plan view showing an operating state of cutting the pipe by the cutting means of the present invention in the state of 3, Figure 5 is a plan view of a process in which the clamping means moves in the pipe conveying direction in an operating state in which the cutting means of the present invention is retracted and the clamping means clamps the pipe up and down, and FIG. 6 shows that the chamfering means of the present invention is advanced. 7 is a plan view showing the operating state of chamfering both ends of the cut pipe, Figure 7 is a plan view showing the operating state of the chamfering means and the clamping means of the present invention retreat and the moving plate of the clamping means is in place, Figure 8 is a cut of the pipe And a plan view of a state in which the transfer plate is transferred after the chamfering operation is completed, and FIG. 9 illustrates a state in which the cutting means of the present invention cuts the pipe. 10 is a perspective view showing a state in which the chamfering means of the present invention chamfered the end of the cut pipe, Figure 11 is an enlarged cross-sectional view taken along the line VII-VII of Figure 4, Figure 12 is VII- It is an enlarged sectional view along the X-ray.

3 to 12, reference numeral 1 denotes a transfer die reciprocating with a predetermined range, and reference numeral 3 denotes an upper portion of the transfer die 1 so as to move relative to the transfer die 1. Clamping means for clamping the pipe (2) to be used, (4) is a cutting means for cutting the pipe (2) to a predetermined length is installed on the transfer die (1), (5) is on the transfer die (1) Chamfering means for grinding the cut surface of the pipe (2) installed and cut.

In addition, the transfer die 1 is slidably coupled to the two guide rods 7 installed in the longitudinal direction of the support 6 through the bracket 8, as shown in FIG. 11, and the clamping means 3 As shown in FIG. 10, the movable clamp 11 and the movable plate 12 operated by the fixed clamp 9 and the pneumatic cylinder 10 are formed, and the movable plate 12 includes the transfer die 1. It moves to the left and right by the pneumatic cylinder 12a provided in the lower direction along the guide rail 13 provided in the upper surface of ().

Meanwhile, the fixing plate 17 is positioned at a predetermined distance from the clamps 9 and 11, and the fixing plate 14 is fixed to the fixing plate 17 so as to clamp the pipe 2. A moving clamp 16 which clamps the pipe 2 together with the clamp 14 is adapted to be operated by the pneumatic cylinder 15.

In addition, the cutting means (4) is a moving plate 19 is moved along the guide rail 18 installed across one side of the transfer die (1) and the motor (20) installed on the moving plate 19 and It consists of a cutter 23 is rotated via a valve 22 at a certain distance by the pulley 21 and the fixing table 34 connected to the motor 20, the lower surface of the moving plate 19 The pneumatic cylinder 19a provided in the upper and lower directions moves along the fraud guide rail 18.

In addition, the chamfering means (5) is guided to the guide rail 18, the front and rear movable plate 24 which is moved in the front and rear direction, and guided by the guide rail 25 provided on the front and rear movable plate 24 to the left and right direction A left and right moving plate 26 moving on the side, a motor 27 installed on the left and right moving plate 26 to generate power, a pulley 28 provided at the tip of the motor 27, and It is fixed to the left and right moving plate 26 via a fixing stand 35 is made of a chamfering member 29 for rotating and chamfered by grinding the end of the pipe (2) by the belt 30, the left and right movement Under the plate 24 and the front and rear movable plate 26, high pressure cylinders 24a and 26a for moving them are provided.

Next, the operation and effect of the automatic cutting and chamfering device of the pipe according to the present invention configured as described above.

The present invention is manufactured to be rolled round in a pipe shape of a certain diameter through the tube shown in the drawing while the stainless steel plate and the like are released from the take-up roll (not shown) and then welded along the longitudinal seam of the pipe, as shown in FIG. 3. As described above, the pipe 2 passes through the automatic cutting and chamfering device of the present invention by the transfer roller 31, and the pipe 2 to be conveyed passes through the support 6 and is provided at one end of the support 6. Upon contact with the switch plate 32, the feed die 1 starts to move along the guide rod 7 of the support 6 at the same speed as the feed of the pipe.

At the same time, the pneumatic cylinders 10 and 15 of the clamping means 3 are operated to clamp the pipes 2 between these clamps, with the movable clamps 11 and 16 approaching the stationary clamps 9 and 14; At the same time, the high pressure cylinder 1a installed under the transfer die 1 is operated to move the transfer die 1 along the guide rod 7 of the support 6 at the same speed as the transfer speed of the pipe 2.

In this state, the pneumatic cylinder 19a of the cutting means 4 is operated to cut the pipe 2 to an appropriate length. This is because the moving plate 19 formed on the upper surface of the transfer die 1 is the pneumatic cylinder 19a. The guide rail 18 is moved by the guide rail 18, and the moving plate 19 is provided with a motor 20. When the motor 20 operates, the pulley 21 connected to the belt 22 rotates. As the belt 23 rotates, the pipe 2 is cut into a predetermined length while the cutter 23 rotates.

That is, the cutter 23 cuts the pipe 2 while the moving plate 19 moves forward along the pipe by moving on the guide rail 18.

In this case, since the pipe 2 is fixed by the clamping means 3, the pipe 2 may be cut in a stable state when cutting by the cutter 23.

After the cutting operation is completed, the moving plate 19, which has been advanced, is retracted along the guide rail 18 by the post-operation of the pneumatic cylinder 19a to return to its original position, and the cutter 23 is also simultaneously retracted to the original position. To return, the motor 20 is in a non-operating state.

On the other hand, after the pipe 2 is cut, the movable plate 19 at the lower portion of the movable clamps 9 and 11 is guide rails while the movable clamps 9 and 11 hold the cut pipe 2. Take (13) and start moving laterally.

In other words, the pipe 2 cut by the cutting means 4 is moved together with the clamping means 3 to be separated from the manufactured original pipe to be opened at a predetermined interval.

In addition, when the movable plate 12 is moved along the guide rail 13 to a predetermined distance and stopped, the chamfering means 5 starts to operate. The chamfering means 5 is provided by a pneumatic cylinder 24a. The moving back and forth moving plate 214 is provided so that the back and forth moving plate 24 moves on the guide rail 18 and the chamfering member 29 is also moved at the same time.

In addition, when the chamfering member 29 reaches a predetermined position, the left and right movable plates 26 installed on the front and rear movable plates 24 are guided and moved to the guide rails 25 fixed to the front and rear movable plates 24. Once it reaches the predetermined position of the pipe 2, it stops once.

Then, when the front and rear movable plate 24 is guided and moved by the guide rail 18, the chamfering member 29 enters into the space between the separated pipes, and at this time, the motor installed on the left and right movable plate 26 ( As the 27 moves, the chamfering member 29 is rotated through the belt 30 connected through the pulley 28 to grind both cut surfaces of the cut pipe 2.

In addition, when the chamfering operation of the pipe 2 is completed by such an action, the forward and backward moving plate 24 moves forward again and returns to its original position, and the left and right moving plate 26 also returns to its original position.

At this time, the motor 27 is in a stopped state, and as shown in FIG. 7, the moving clamps 11 and 16 are retracted by the pneumatic cylinders 10 and 15 to release the clamping of the pipe, and chamfer. The pipe 2 on the left side is drawn out by the drawing roller and the moving plate 12 is returned to its original position.

When the cutting and chamfering operation as described above is completed and the transfer die 1 reaches the end of the support 6 as shown in FIG. 8 by the guide rod 7 of the support 6, the chamfered left side The pipe 2 is drawn out by the withdrawal roller, the pipe on the right side is continuously conveyed with one end chamfered, and the transfer die 1 is retracted in the longitudinal direction of the support 6 again.

As a result, the cutting and chamfering operations are completed, and the above operation is repeatedly performed in a state as shown in FIG. 3.

As described above, according to the automatic cutting and chamfering apparatus of the pipe according to the present invention, the cutting and chamfering operations of the pipe are continuously performed quickly during the conveyance of the pipe, thereby improving productivity and at the same time producing a sophisticated product. There is.

Claims (1)

In the automatic cutting device of a pipe comprising a clamping means (3) for clamping the pipe (2) and a shearing means (4) for cutting the pipe (2) clamped by the clamping means (3) to a predetermined dimension The front and rear movable plate 24 which is guided to the guide rail 18 and moved in the front and rear directions so that both cut surfaces of the pipe 2 cut by the cutting means 4 are chamfered, the front and rear movable plate 24 The pipe (2) is rotated by a left and right moving plate (26) guided by the guide rail (25) secured to the left and right and a motor (27) fixed to an upper portion of the left and right moving plate (26). Automatic cutting and chamfering device of the pipe, characterized in that made of a chamfering member 29 to chamfer both sides of the cut.