JP4562724B2 - Pipe processing equipment - Google Patents

Description

  The present invention relates to a pipe processing apparatus used for a pile or the like driven into the ground.

Conventionally, as a method of processing a pipe such as a pile, a method using a drilling tool such as a drill or a hole saw, or a method of punching by attaching a punch and a die to a hydraulic actuator (puncher) as disclosed in Patent Document 1, for example, is known. . In some cases, an installation-type large machine tool is used.

However, at the end of a large-diameter pipe, such as a pile, it is not easy to drill holes at 180 ° or to process notches, and for long pipes, it takes time for setup work and tools and equipment that can be used. Was limited. In addition, in processing with a conventional drilling tool or puncher, in order to perform processing on the opposite side 180 ° after processing on one side of the pipe circumferential surface, the pipe is rotated by 180 ° and positioned,
It was necessary to position the tool 180 ° opposite. In addition, since the positioning of the pipes and tools is inaccurate, there is a drawback in that processing defects occur and accurate positioning takes time.
Japanese Utility Model Publication No. 4-128120

The problem to be solved is that some of the conventional pipe processing apparatuses are capable of automatic face-to-face processing even if they are long pipes, but they are not practical at the construction site because they are large installation types.
Further, in the case of rotational cutting with a drilling tool such as a drill or a hole saw using an electric motor, processing of the circumferential surface and notching is dangerous, and setup work such as fixing and positioning of the pipe is troublesome. Even in punching using a puncher, it is difficult to accurately position the tool on the opposite side of the pipe by 180 °. Moreover, the method of processing one side at a time was inefficient.

Therefore, the present invention accurately and easily performs face-to-face processing of holes and notches when performing face-to-face processing of holes and notches on pipe ends, without positioning pipes or tools on each side. The purpose is to propose a pipe processing device that can be used.

To achieve the above object, the pipe processing apparatus according to the present invention, the hole and the hole in the pipes end or a hole and notch, or notches and the notch portions, facing machining pipe processing device a is an actuator which is secured to the base, the axis and the first punch capable reciprocating in the orthogonal direction of the processed pipe-exchange freely attached to and for the notch machining hole processing to the actuator, the A fixed second punch that is attached to the base so as to be interchangeable for hole machining and notch machining, and is disposed so as to face the first punch so that the tip surface portion faces the first punch, and the first punch and the second punch sliding portion is disposed for supporting the linearly reciprocable in the axial perpendicular direction of the positioning possible receiving metal of the inserted該被processed pipe inside of the processed pipe, the workpiece pipe receiving only fitting between and, the receiving gold Contact with the stopper portion for restricting the push-back for resilient member attached resiliently biased to retract into the first punch side, the stroke the receiving the fitting is advanced to the second punch side along the slide portion Further, the first punch is provided with an butt that abuts on the processed pipe after the processed pipe is punched out by the first punch.

The present invention has the following effects.
According to the pipe machining apparatus of the present invention, when facing a hole or a notch at a pipe end, a set-up operation (the pipe or tool position is rotated by 180 °) is performed after machining one side. Positioning work). That is, if this device is attached only once to the end of the pipe, it is possible to face the hole or notch to the end of the pipe. In addition, the operation can be performed easily and quickly, and since this apparatus requires only one actuator, it is lightweight and small, and is excellent in portability and easy to handle.

Hereinafter, the present invention will be described in detail based on the illustrated embodiment.
1 to 7, a pipe machining apparatus according to the present invention is a machining apparatus for machining a hole and / or a notch in a pipe end, and is a first punch 1 that can be reciprocated by an actuator 3. A fixed second punch 2 facing the first punch 1; a receiving metal fitting 4 disposed between the first punch 1 and the second punch 2 and inserted into the workpiece pipe 8; A slide portion 5 that supports the receiving bracket 4 so as to be linearly reciprocable, a resilient member 7 for pushing back the receiving bracket 4, and a stopper portion 6 that restricts a stroke in which the receiving bracket 4 advances along the slide portion 5. It is a thing. The axial center L ₁ of the first punch ₁ and the axial center L ₂ of the second punch 2 are provided in parallel and close to each other (or provided as the same axial center) and are inserted into the processed pipe 8. The shaft center of the received metal fitting 4 is provided as the same shaft center as the shaft center L _{4 of the} workpiece pipe, and both shaft centers L ₁ and L _{2 are provided.}
Each member is arranged so as to be orthogonal to

The actuator 3 is a hydraulic cylinder in which the rod 13 reciprocates by hydraulic pressure with the receiving metal 4 moving forward. The actuator 3 can be operated by a manual hydraulic pump or an electric hydraulic pump, and is fixed to the base 15. A first punch 1 for punching the processed pipe 8 is attached to the tip of the rod 13 of the actuator 3. In addition, the first punch 1 is disposed so that the front end face faces the opposite face of the first punch 1, and a fixed second punch 2 for punching the processed pipe 8 is attached to the base 15 in a replaceable manner.

Further, as shown in FIG. 2, a receiving metal fitting 4 that can be inserted into the processed pipe 8 is disposed between the first punch 1 and the second punch 2, and is orthogonal to the axis L ₄ of the processed pipe 8. It is supported by a slide portion 5 that can linearly reciprocate in the direction. The metal fitting 4 has a cylindrical shape for facilitating the insertion of the workpiece 8 and is provided with a tip slope 20 for further facilitating the insertion as shown in FIG. The contact surface forming step 21 can be positioned. A first die 11 for the first punch 1 is interposed on the outer peripheral surface portion 22 so as to face the first punch 1, and a second die 12 for the second punch 2 faces the second punch 2. Is intervening. The interior of the receiving metal 4 is provided with an internal space in which the processed pipe 8 can be punched with the first punch 1 and the first die 11 or the second punch 2 and the second die 12. Further, as shown in FIG. 4, it is desirable to provide a stopping portion 25 that can store the scrap 19 that has been punched out and a waste outlet 18 for the scrap 19.

Also, the first punch 1 and the second punch 2 are interchangeable, and the first punch 1 is attached to the tip of the rod 13 of the actuator 3 (hydraulic cylinder) depending on the use of each punch for hole machining and notch machining. The two punches 2 can be respectively attached to the base 15 so that the first punch 1 and the front end face portion face each other. Further, the first die 11 and the second die 12 can be exchanged, and can be attached to the metal fitting 4 by receiving a die suitable for each punch for hole machining and notch machining.

In addition, the first punch 1 is fixed with an attachment 9 for restricting the punching stroke. The hitting 9 hits after the rod 13 of the actuator 3 (hydraulic cylinder) moves forward and punches the workpiece pipe 8 inserted into the bracket 4 with the first punch 1, so that the workpiece 8 and the bracket 4 are brought into contact with each other. It is also possible to move forward. In addition, the second punch 2 is provided with an attachment 10, and the elastic member 17 is elastically biased toward the distal end surface of the second punch 2 by the elastic member 17, and the second punch 2 is connected to the second die 12 and the pipe 8 to be processed. This makes it easy to pull out from

The slide portion 5 is provided with two T-shaped rails 14 fixed to the base 15 and in a direction substantially orthogonal to the axis L _{4 of the} pipe 8 to be processed. As shown in FIG. 4, the T-groove 24 formed on the bottom surface portion 23 of the bracket 4 is slidably attached to the rail 14 so that the bracket 4 can reciprocate linearly.
Further, the stroke of the metal fitting 4 toward the second punch 2 is regulated by the stopper portion 6. Further, the metal fitting 4 is moved to the second punch 2 by the elastic member 7 housed in the recessed portion 30 of the base 15.
Although the bullet is always urged from the side to the first punch 1 side, the stroke is regulated by the contact portion 16.

That is, the pipe machining apparatus according to the present invention performs a process in which the first punch 1 performs a process with a larger processing area (lower processing surface pressure) than the second punch 2 as shown in FIG. With the pipe 8 to be processed inserted and the end face 26 in contact with the contact surface forming step 21, the actuator 3 (hydraulic cylinder) having the first punch 1 attached to the tip of the rod 13 is activated to move the first punch 1 Move forward. Next, as shown in FIG. 5B, the processed pipe 8 pressed by the first punch 1 moves to the second punch 2 side together with the receiving metal fitting 4, and the processed pipe 8 is pressed against the second punch 2. Second
The workpiece pipe 8 pressed against the punch 2 is punched before the first punch 1 by the second punch 2 and the second die 12 having a large processing surface pressure. Further, the workpiece 8 and the metal fitting 4 are pushed by the first punch 1, but the metal fitting 4 hits the stopper portion 6 and the movement stops.
Further, the elastic member 7 is compressed by the receiving metal fitting 4. Next, as shown in FIG. 5C, the workpiece pipe 8 pushed by the first punch 1 attached to the rod 13 that advances further is punched by the first punch 1 and the first die 11. After that, the work pipe 8 and the receiving metal fitting 4 hit the claws 9 fixed to the first punch 1 that moves forward, and the first punch 1 stops moving forward. Next, FIG.
When the rod 13 is retracted as in d), the receiving metal member 4 is pushed back by the compressed elastic member 7, and the second punch 2 is pulled out from the second die 12 and the workpiece pipe 8. Thereafter, the catch 4 comes into contact with the contact portion 16 and stops. Next, as shown in FIG. 5E, the rod 13 is further retracted, whereby the first punch 1 is pulled out from the first die 11 and the workpiece pipe 8. Thereafter, the work is completed by removing the workpiece pipe 8 from the metal fitting 4.

The first punch 1 performs a process in which the processing area is smaller than that of the second punch 2 (the processing surface pressure is large), as shown in FIG. With the end face 26 in contact with the contact face forming step 21, the actuator 3 (hydraulic cylinder) with the first punch 1 attached to the tip end of the rod 13 is activated to advance the first punch 1 forward. Next, as shown in FIG. 6B, the workpiece pipe 8 pushed by the first punch 1 moves to the second punch 2 side together with the receiving metal fitting 4 and is pressed against the second punch 2. Next, as shown in FIG. 6 (c), the processed pipe 8 pressed against the first punch 1 is punched before the second punch 2 by the first punch 1 and the first die 11 having a large processing surface pressure. Processed. Thereafter, the work pipe 8 and the receiving metal fitting 4 hit the butt 9 fixed to the first punch 1 that moves forward.
Pressed against the punch 2. Next, as shown in FIG. 6 (d), the pipe 8 to be machined pressed against the second punch 2 by the hitting 9 is punched by the second punch 2 and the second die 12. Thereafter, the work pipe 8 and the metal fitting 4 are further pushed by the tart 9, but the metal fitting 4 hits the stopper portion 6 and the movement stops. Further, the elastic member 7 is compressed by the receiving metal fitting 4. Next, as shown in FIG. 6 (e), when the rod 13 moves backward, the receiving member 4 is pushed back by the compressed elastic member 7, and the second punch 2 is pulled out from the second die 12 and the work pipe 8. Thereafter, the catch 4 comes into contact with the contact portion 16 and stops. Next, as shown in FIG. 6 (f), the rod 13 is further retracted, whereby the first punch 1 is pulled out from the first die 11 and the workpiece pipe 8. Thereafter, the work is completed by removing the workpiece pipe 8 from the metal fitting 4.

In addition, the process in which the first punch 1 performs processing with the same processing area as the second punch 2 (equivalent to the processing surface pressure) is performed by inserting the workpiece 8 into the receiving metal fitting 4 as shown in FIG. The actuator 3 (with the first punch 1 attached to the tip of the rod 13 with the end face 26 in contact with the contact surface forming step 21 (
1st punch 1 is advanced by starting the hydraulic cylinder). Next, as shown in FIG. 7B, the workpiece pipe 8 pressed by the first punch 1 moves to the second punch 2 side together with the receiving metal fitting 4 and is pressed against the second punch 2. Next, as shown in FIG. 7C, the processed pipe 8 pressed further by the first punch 1 has substantially the same processing surface pressure of the first punch 1 and the second punch 2.
The first punch 1 and the first die 11 or the second punch 2 and the second die 12 are punched at substantially the same time. Thereafter, the processed pipe 8 and the receiving metal fitting 4 come into contact with the butt 9 fixed to the first punch 1 that moves forward, and the processed pipe 8 and the receiving metal 4 are pushed by the butt 9 so that the receiving metal 4 hits the stopper portion 6. This stops the movement. Further, the elastic member 7 is compressed by the receiving metal fitting 4. Next, as shown in FIG. 7D, when the rod 13 moves backward, the receiving member 4 is pushed back by the compressed elastic member 7, and the second punch 2 is pulled out from the second die 12 and the work pipe 8. Thereafter, the catch 4 comes into contact with the contact portion 16 and stops. Next, as shown in FIG. 7E, the rod 13 is further retracted, whereby the first punch 1 is pulled out from the first die 11 and the workpiece pipe 8. Thereafter, the work is completed by removing the workpiece pipe 8 from the metal fitting 4.

In addition, the present invention can be modified in various ways other than the embodiment shown in the drawings, and the bat 10 and the resilient member 17 attached to the second punch 2 may be omitted. Further, as a through hole concentric to the pipe axis L ₄ direction on the bottom portion 23 and the base 15 of the waste inlet 18 receiving metal 4 of debris 19 may be provided.
The actuator 3 is not limited to a hydraulic cylinder, but may be any one as long as the first punch 1 is attached, can reciprocate, and can machine the workpiece 8. The resilient member 7 but it may also be installed and used in to attract the fitting 4 received from the first punch 1 side.

As described above, the pipe machining apparatus according to the present invention is a machining apparatus for machining a hole and / or a notch in a pipe end, and is a first punch 1 that can be reciprocated by an actuator 3.
A fixed second punch 2 disposed facing the first punch 1, and a receiving metal fitting 4 disposed between the first punch 1 and the second punch 2 and inserted into the processed pipe 8. , A slide portion 5 that supports the receiving bracket 4 so as to be able to reciprocate linearly, a resilient member 7 for pushing back the receiving bracket 4, and a stopper portion 6 that restricts a stroke in which the receiving bracket 4 advances along the slide portion 5. Therefore, when facing holes or notches in the pipe end, the pipe end can be easily, quickly and accurately positioned by one positioning without the need to position the pipe or tool on each side. Face-to-face processing of holes and notches can be performed. That is, there is no need to rotate the 180 ° pipe in the circumferential direction during face-to-face processing or to place the tool 180 ° facing. Therefore, machining defects due to positioning errors can be reduced, and positioning efficiency is not required, and work efficiency is increased. In addition, since two places can be processed by one activation of one actuator 3, it is efficient and economical. Further, since only one actuator 3 is required, the apparatus is small and light and the workability is good. In particular, large diameter driven piles (pipes) can be processed efficiently.

In addition, a hole and a hole, or a hole and a notch, or a notch and a notch,
A processing device that performs face-to-face processing, the first punch 1 that can be reciprocated in a direction orthogonal to the axis L _{4 of the} pipe 8 to be processed by the actuator 3, and the front surface portion of the first punch 1 that faces the first punch 1. A fixed second punch 2, a receiving metal 4 disposed between the first punch 1 and the second punch 2, inserted into the processed pipe 8 and capable of positioning the processed pipe 8, and the receiving metal 4 A slide portion 5 that supports a reciprocating linear movement in a direction orthogonal to the axis L _{4 of the} pipe 8 to be processed,
A push-back elastic member 7 that elastically urges the receiving metal 4 to move backward toward the first punch 1, and a stopper that restricts the stroke of the receiving metal 4 moving forward along the slide portion 5 toward the second punch 2. Because it is equipped with the part 6, when positioning the holes and notches in the pipe end, the positioning of the pipes and tools on each side is not performed, it is easy, quick and accurate In addition, it is possible to face the hole and notch to the pipe end. That is, there is no need to rotate the 180 ° pipe in the circumferential direction during face-to-face processing or to place the tool 180 ° facing. Therefore, machining defects due to positioning errors can be reduced, and positioning efficiency is not required, and work efficiency is increased. In addition, since two places can be processed by one activation of one actuator 3, it is efficient and economical. Further, since only one actuator 3 is required, the apparatus is small and light and the workability is good. In particular, large-diameter piles (pipes) can be processed efficiently.

It is a partial cross section side view of one Embodiment which shows a use condition. It is a side surface principal part enlarged view shown with a partial cross section. It is explanatory drawing of a usage method. It is a principal part sectional front view. It is an operation explanatory view. It is an operation explanatory view. It is an operation explanatory view.

DESCRIPTION OF SYMBOLS 1 1st punch 2 2nd punch 3 Actuator 4 Receiving metal fitting 5 Slide part 6 Stopper part 7 Elastic member 8 Processed pipe
9 Atari
15 base L ₄ axis

Claims (1)

A pipe processing device for facing a hole and a hole, or a hole and a notch, or a notch and a notch at a pipe end , and an actuator (3) fixed to a base (15); A first punch (1) attached to the actuator (3) so as to be exchangeable for hole machining and notch machining, and capable of reciprocating in a direction orthogonal to the axis (L ₄ ) of the pipe (8) to be machined ; A fixed second punch (2) attached to the base (15) so as to be exchangeable for hole machining and notch machining, and arranged to face the first punch (1) so that the front end face portion faces each other ; said first punch (1) and said second punch (2) arranged to be positionable receiving metal inside the inserted 該被processed pipe (8) of the workpiece pipe (8) between (4) And a direction perpendicular to the axis (L ₄ ) of the pipe (8) to be machined. Slide unit reciprocally supported to be able to (5) and said receiving metal (4) in contact with said first punch (1) pushed back for resilient member attached resiliently biased to retract to the side (7) And a stopper portion (6) for regulating a stroke of the receiving metal fitting (4) moving forward along the slide portion (5) toward the second punch (2) ,
In addition, the first punch (1) is provided with an attri (9) that abuts against the processed pipe (8) after the processed pipe (8) is punched out with the first punch (1). Characteristic pipe processing equipment.

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