KR20040043882A - Punching apparatus for pipe - Google Patents

Abstract

PURPOSE: A punching device of a pipe is provided to improve the quality and the reliability of a product by producing the product with more accurate standard. CONSTITUTION: A base(110) is formed by a structure with a certain height from a floor. A driving motor(120) offers driving force by installing in the upper part of the base. An operating member(130) is installed in the upper front part of the base to be reciprocated vertically by the driving motor. An operating key(140) is installed in the lower part of the base to reciprocate the operating member once by pushing. Wedge members(150) is installed in the lower sides of the operating member. A punching device(160) supports a pipe for a muffler by installing in the upper part of the base under the wedge members and punches both sides of the pipe by moving the operating member downward. Thereby, a product with a more accurate standard is produced by punching many holes through one operation.

Description

Punching apparatus for pipe

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe drilling apparatus, and more particularly, to a pipe drilling apparatus capable of drilling a more precise and regular hole in the surface of a muffler pipe constituting an automobile muffler.

In general, when the combustion gas burned by the automobile engine is directly discharged into the atmosphere, the explosion occurs due to a rapid expansion, thereby reducing the noise through the muffler to discharge the combustion gas into the atmosphere. Such a muffler for a vehicle is also called a muffler, and refers to a device that suppresses rapid expansion and explosion by lowering the pressure and temperature of the combustion gas before discharging the combustion gas into the atmosphere.

On the other hand, when looking at the exhaust system of the vehicle, the bellows pipe to block the transmission of the engine vibration to the end of the exhaust pipe connected to the exhaust manifold of the engine, the pressure of the converter and combustion gas to in turn release the harmful gas through the bellows pipe and It consists of a muffler that reduces temperature and suppresses rapid expansion and explosion.

As described above, the muffler is a hermetically sealed muffler body having a space therein, a plurality of baffles having a partition wall that attenuates noise by surrounding the interior of the muffler body into a plurality of spaces, and an inlet for introducing combustion gas into the muffler body. It consists of a pipe and an outlet pipe which discharges the combustion gas whose pressure and temperature have fallen to the atmosphere.

The aforementioned muffler introduces flue gas through the exhaust manifold, bellows pipe and converter through the inlet pipe and passes it through the inlet and outlet pipes and the holes drilled in these pipes, thereby reducing the pressure and temperature of the flue gas. It is then discharged into the atmosphere through the atmosphere and exposed tail pipes, with the abrupt expansion and explosion of the combustion gases.

On the other hand, in the configuration of the muffler as described above, the hole drilled in the inlet pipe or the outlet pipe has an important function to prevent the rapid expansion by reducing the pressure of the combustion gas, as a method of drilling a hole in the inlet pipe and the outlet pipe Conventionally, after one side is first drilled by pressing a mechanism such as a press from the top to the bottom while the pipe is fixed to the bottom side, the pipe is rotated again so that the other side corresponding to the perforated hole is directed upward. The work was done by drilling the opposite side.

However, since the drilling of the pipe is performed as described above, there is a problem in that the worker has to rotate the pipe next to the drilling device during the drilling, thereby degrading the efficiency of the work.

In addition, since the worker directly perforates while turning the pipe, a problem arises in that a defective product having an incorrect arrangement of holes to be perforated occurs. Accordingly, a problem occurs in the reliability of the product.

Moreover, there is a problem that the worker is exposed to the risk of accident due to the work to return the pipe during the drilling work.

The present invention was devised to solve the above-mentioned problems, and to manufacture a product of a more accurate standard through the development of a punching device to be able to drill a plurality of holes corresponding to both sides of the pipe by one operation The aim is to provide a pipe fabrication plant that can improve the quality and reliability of the product.

Another object of the present invention is to facilitate the drilling of pipes by allowing a plurality of holes corresponding to both sides of the pipe to be drilled by one operation.

In addition, the present invention is to allow a plurality of holes corresponding to both sides of the pipe to be punched by one operation to prevent the risk of work that can occur by conventional methods.

1 is a perspective view showing a pipe cloth mill in accordance with the present invention.

Figure 2 is a perspective view showing the drilling means of the pipe drilling apparatus according to the present invention.

Figure 3 is a front view showing a state before the pipe drilling operation for the muffler pipe drilling apparatus according to the present invention.

Figure 4 is a plan view and a front view showing the action of the drilling means according to FIG.

Figure 5 is a front view showing the action state during the pipe drilling operation for the muffler pipe drilling apparatus according to the present invention.

Figure 6 is a plan view and a front view showing the action of the drilling means according to FIG.

** Description of symbols for the main parts of the drawing **

100. Pipe puncher 110. Base

120. Drive motor 130. Operating member

140. Operation Key 150. Wedge Member

160. Pipe drilling means 161. Fixing piece

162. Moving piece 163. Moving piece guide member

164. Perforation 165. Perforation Guide Member

166. Pipe support rod 170. Wedge member entry hole

The present invention configured to achieve the above object is as follows. That is, the pipe mill according to the present invention, the pipe drilling device for drilling a hole in the muffler pipe, the base consisting of a structure of a certain height from the bottom; A driving motor installed at an upper side of the base to provide a driving force by applying power; An operating member installed on the upper front side of the base such that the linear reciprocating motion can be performed by the driving motor; An operation key installed at one lower side of the base to reciprocate the operation member once in a pressing operation by an operator's foot; A wedge member spaced apart at a predetermined distance from each of the front and rear sides of the lower surface of the operation member to face each other in the same size and shape; And means for drilling holes in both sides of the muffler pipe by downward movement of the operation member while being installed on the lower base upper surface of the wedge member to support the muffler pipe.

In the above-described configuration, the operation key is preferably installed on the lower side of the base so that it can be pressed by the operator's feet.

The above-mentioned drilling means includes a fixing piece that is installed opposite to the base upper surface both sides fixed; A moving piece which is installed on each of the inner surfaces of the two fixing pieces and is moved in the opposite direction by the pressing of the wedge member during the downward movement of the operating member; A movable piece guide member slidably connected to both sides of the two movable pieces to guide the linear movement when the movable piece is moved; A plurality of perforated pieces, one end of which is fixed to each of the two moving pieces and installed to protrude a predetermined length in opposite directions, while drilling a hole in the muffler pipe when the moving piece is moved; Perforated piece guide member which is installed on the inner surface of the two moving pieces spaced apart from each other by a predetermined distance while guiding the plurality of perforated pieces to move straight in the opposite direction; A pipe support rod which is installed between two perforated piece guide members and supports a muffler pipe fastened to its outer circumferential surface by forming a plurality of perforated piece entrance holes related to the perforated piece on both sides; And means for repositioning the moving piece pressed by the wedge member and moved.

A plurality of punching piece entrance holes formed at both sides of the pipe support bar described above are formed at positions related to each of the punching pieces, and the holes are drilled when the holes are drilled on both sides of the muffler pipe supported by the pipe support rod as the operating member moves downward. The side is configured to enter.

On the other hand, the means for repositioning the moving piece, the one end is fixed to each of the moving pieces, the other end of the sliding rod penetrates through the fixing piece so as to protrude out of the fixing piece; Screw member is fastened to the protruding end of the sliding rod; And an elastic spring installed on an outer circumferential surface of the sliding rod between the outer surface of the fixing piece and the screw member so that the force acts in the direction to always move the moving piece.

It is preferable that the upper side between the fixing piece and the moving piece forms a wedge-shaped wedge member entry portion related to the shape of the wedge member so that the wedge member can enter between the fixing piece and the moving piece according to the downward movement of the operation member described above. .

Hereinafter, a pipe drilling apparatus according to a preferred embodiment of the present invention will be described in detail.

1 is a perspective view showing a pipe drilling mill according to the present invention, Figure 2 is a perspective view showing a drilling means of the pipe drilling apparatus according to the present invention.

1 and 2, the pipe drilling apparatus 100 according to the present invention is a base 110 made of a structure of a certain height from the floor of the operator, a drive motor 120 for providing a driving force, a drive motor 120 The operation member 130 for linear reciprocating movement up and down by the driving of), the operation key 140 for operating the operation member 130 once by the pressing operation of the operator, before and after both sides of the lower surface of the operation member 130. It consists of a means 160 for drilling a hole by supporting the wedge member 150 and the muffler pipe 200 provided with a predetermined size.

The pipe drilling apparatus 100 configured as described above does not operate the operating member 130 even when there is no key input signal of the operation key 140 even when the driving motor 120 is driven. That is, when the pressing operation of the operation key 140 is made in the state in which the pipe 200 for the muffler is supported on the pipe drilling means 150, the operation of the operation member 130 is performed. Therefore, even when the operation of the operation member 130 is not made, the driving motor 120 to which power is applied to the pipe drilling apparatus 100 is in a driving state.

As described above, the operation of the operation member 130 after the key input of the operation key 140 is made is to operate the operation member 130 only during the drilling operation of the muffler pipe 200. At this time, the operation key 140 is preferably installed on the lower side of the base 110 so that the operator can facilitate the drilling operation.

In the configuration of the pipe drilling apparatus 100 according to the present invention, the configuration of the pipe drilling means 160 is provided on both sides of the fixing piece 161 and the two fixing pieces 161 that are installed opposite to the wedge member ( The moving piece guide member 163 which guides the moving piece 162 to move linearly by slidably connecting the both sides of the moving piece 162 and the two moving pieces 162 slidably by the pressurization of the 150, and the movement, When the piece 162 moves, a plurality of punch pieces 164 for drilling holes in the muffler pipe 200, a plurality of punch piece guide members 165 to guide the plurality of punch pieces 164 to move straight in the opposite direction, The moving piece 162 pressed and moved by the pipe support rod 166 and the wedge member 150 which are installed toward the front side between the two perforated piece guide members 165 and support the muffler pipe 200 fastened to the outer circumferential surface thereof. ) Is a means (167) for repositioning.

In the configuration of the pipe boring means 160 as described above, a plurality of boring piece entrance holes 166a are formed at positions related to each boring piece on both sides of the pipe support rod 166 to move downwardly of the operating member 130. The perforated piece 164 is configured to enter the perforated piece 164 when punching holes in both sides of the muffler pipe 200 supported by the pipe support rod 166.

That is, the above-described punch piece entry hole 166a is formed through both sides of the pipe support rod 166 related to the arrangement of the plurality of punch pieces 1664 arranged to face each other and moves in the opposite directions of the two moving pieces 162. The punch piece 164 enters while drilling the muffler pipe 200. Therefore, when drilling holes in both sides of the muffler pipe 200, it can be seen that the perforated piece entry hole 166a has a very important function.

In the above-described configuration of the pipe drilling means 160, the means 167 for repositioning the moving piece 162 is fixed to each of the moving pieces 162 and the other end slidably penetrates the fixing piece 161 so as to slide the fixing piece 161. A sliding rod 167a protruding outward from the 161, a screw member 167b fastened to the protruding end of the sliding rod 167a, and a sliding rod between the outer surface of the fixing piece 161 and the screw member 167b. 167a is provided on the outer circumferential surface and is composed of an elastic spring 167c whose force acts in a direction to normally move the moving piece 162.

The moving piece 162, the original position means 167 configured as described above, moves the moving pieces 162 moved to opposite sides to drill holes in both sides of the muffler pipe 200 supported by the pipe support rod 166. It returns to the upper position through the restoring force of the elastic spring 167c. Of course, in order to return the movable piece 162 to its original position after drilling a hole in the muffler pipe 200, the original position of the operation member 130 must be preceded.

On the other hand, the upper side between the fixing piece 161 and the moving piece 162 described above can enter the wedge member 150 between the fixing piece 161 and the moving piece 162 according to the downward movement of the operation member 130. The wedge-shaped wedge member entrance part 170 is formed so as to correspond to the shape of the wedge member 150.

As described above, the wedge member entrance part 170 has a wedge member 150 which is moved downward in accordance with the downward movement of the operating member 130 so that the wedge member 150 may be more easily entered between the stationary piece 161 and the moving piece 162. To help.

Referring to the pipe drilling apparatus 100 according to the present invention in more detail as follows. First, the base 110 is for installing the components of the pipe drilling apparatus 100, the base 100 is made of a structure of a certain height from the bottom surface of the workplace.

The drive motor 120 is to provide a driving force by applying power, and the drive motor 120 is installed at one upper side of the base 110. The driving motor 120 installed as described above transfers the driving force to the operating member 130 through the wheel 122, the belt 124, and the crank shaft 126.

When the operating member 130 drills a hole in the pipe 200 for the muffler, the pipe drilling means 160 is operated. The operating member 130 linearly reciprocates upward and downward on the front side of the upper side of the base 110. It is installed so that it can be done. At this time, the operating member 130 is guided in a linear reciprocating motion to the base 110 through both sides thereof, the upper end is rotatably connected to the crank shaft 126.

The operating member 130 configured as described above operates the pipe drilling means 160 while linearly reciprocating up and down by the rotation of the crank shaft 126.

The operation key 140 is for operating the operation member 130 once through a key input, and the operation key 140 is usually operated by pressing the foot of the operator so that the work can be made of the base 110. It is installed at the bottom.

As described above, the operation key 140 configured as described above performs the drilling operation by operating the operation member 130 one time (one operation from the top to the bottom and one to the bottom) through the pressing operation. Therefore, the pipe drilling apparatus 100 according to the present invention can be seen that the operation of the operating member 130 is not made even if the driving motor 120 is driven without the pressing operation of the operation key 140.

The wedge member 150 is for moving the moving piece 162 of the pipe drilling means 160 to proceed with the drilling operation, the wedge member 150 is opposed to each other back and forth on both sides of the lower side of the operating member 130. Is installed. At this time, the wedge member 150 is installed so that the lower end forms the end of the wedge.

The pipe drilling means 160 supports the muffler pipe 200 to drill the holes to drill holes, and the pipe drilling means 160 includes the stationary piece 161, the moving piece 162, and the moving piece guide. Member 163, a plurality of perforated pieces 164, perforated guide member 165, pipe support rod 166 and the means 167 for repositioning the moving piece 162 is horizontal to the base 110, the upper side Is installed.

In the pipe drilling means 160 as described above, the fixing piece 161 is fixedly installed to face each other at a predetermined distance from both sides of the upper surface of the base 110. The two fixing pieces 161 installed as described above allow the movable piece 162 to be pushed by the wedge member 150 with respect to the fixing piece 161.

The moving piece 162 is pushed and moved by the wedge member 150 as in the above technique, and is installed to face each other at a predetermined distance from the inner surface of each of the two fixing pieces 161. At this time, the moving piece 162 is installed to be movable in a direction opposite to each other.

The movable piece 162 installed as described above is moved by a length that is pushed in opposite directions when the operating member 130 is moved downward by the pressing operation of the operation key 140 and pressed by the wedge member 150. .

On the other hand, the upper side between the moving piece 162 and the fixing piece 161 is configured as described above, the fixing piece 161 and the moving piece to the wedge member 150 which is moved downward in accordance with the downward movement of the operation member 130 The wedge-shaped wedge member entrance part 170 which is related to the shape of the wedge member 150 is formed so that it may enter between 162.

The moving piece guide member 163 is for guiding the moving piece 162. The moving piece guide member 163 slidably penetrates to both sides of the two moving pieces 162 to go straight when the moving piece 162 moves. Guide it to move. At this time, the moving piece guide member 163 also penetrates both sides of the perforated piece guide member 165 to be described later to serve as an auxiliary support for the perforated piece guide member 165.

The punch piece 164 drills holes on both sides of the muffler pipe 200 supported by the pipe support rod 166, and the drill piece 164 relates to the number of holes to be drilled and the arrangement of the holes. The one end is fixed to the moving piece 162 in a fixed direction. At this time, the ends opposite to each other forms a free end, even if the moving piece 162 is moved to a distance that can be moved, the ends of the oppositely installed punching piece 164 do not touch each other.

The perforated piece guide member 165 guides the perforated piece 164 to move in a straight line. The perforated piece guide member 165 is installed to face each other on the inner surface of each of the two moving pieces 162. The perforated piece 164 is slidably penetrated. At this time, the punch piece guide member 165 is fixed to the base 110 to be spaced apart from the moving piece 162 to some extent.

The pipe support rod 166 is for supporting the pipe 200 for the muffler which drilled the hole, and is installed toward the front in the center between the two perforated guide members 165 of the pipe support rod 166. That is, the pipe support bar 166 is installed horizontally back and forth to allow the perforated piece 164 to enter the outer peripheral surface.

On the other hand, on both sides of the outer circumferential surface of the pipe support rod 166 as described above, a plurality of perforated piece entry holes 166a are formed in relation to the arrangement of the perforated pieces 164. At this time, the drilling piece entrance hole (166a) is a drilling piece when drilling holes on both sides of the muffler pipe 200 supported by the pipe support rod 166 in accordance with the downward movement of the operation member 130 ( 164 enters through the hole.

As described above, the configuration of the punch piece entry hole 166a plays a very important role in drilling the hole in the muffler pipe 200 through the punch piece 164. In other words, if there is no configuration of the punch piece entry hole 166a, it is difficult to drill a hole on the muffler pipe 200, so the configuration of the piece piece entry hole 166a is a very important component.

On the other hand, the means 167 for returning the moving piece 162 is for returning the moving piece 162 moved by the wedge member 150, and the means 167 for returning the moving piece 162 once It is fixed to each of the movable pieces 162, the other end is slidably penetrating the fixing piece 161 to protrude outward of the fixing piece, the screw member is fastened to the protruding end of the sliding rod 167a 167b and an elastic spring 167c installed on the outer circumferential surface of the sliding rod 167a between the outer surface of the fixing piece 161_ and the screw member 167b and acting in the direction in which the moving piece 162 is always in situ. Is done.

The means 167 for repositioning the movable piece 162 configured as described above is moved by the wedge member 150 and the movable piece 162 is moved to drill a hole in the muffler pipe 200, and then the operating member. When the pressing force of the wedge member 150 is removed by the original position of the 130, the moving piece 162 is also returned to its original position by the restoring force of the elastic spring 167c.

That is, when the moving piece 162 is moved by the pressure of the wedge member 150, the elastic spring 167c is contracted by the moving distance of the moving piece 162, and the original shape is removed when the pressing force of the wedge member 150 is removed. The moving piece 162 is restored to its original position.

The following shows the action during the drilling operation of the pipe drilling apparatus 100 according to the present invention.

Figure 3 is a front view showing a state before the pipe drilling operation for the muffler pipe drilling apparatus according to the present invention, Figure 4 is a plan view and a front view showing the action of the drilling means according to Figure 3, Figure 5 is a pipe drilling according to the present invention Figure 6 is a front view showing the action state of the muffler pipe drilling operation of the device, Figure 6 is a plan view and front view showing the action of the drilling means according to FIG.

First, Figures 3 and 4 show the state before the hole in the muffler pipe 200, the operating member 130 is located upwards, the pipe drilling means 160 is also in its original position before drilling It is a state. At this time, the driving motor 120 is being driven.

5 and 6 show a state in which a hole is drilled in the muffler pipe 200, and as shown in FIGS. 5 and 6, when the operator presses the operation key 140, the crank shaft 126 By rotation, the operating member 130 is moved downwards, so that the wedge member 150 enters the wedge member entry portion 170 between the fixed piece 161 and the moving piece 162, thereby moving the moving pieces 162 on both sides. ) Is pressed in mutually opposite directions.

As described above, when the moving piece 162 is pressed by the wedge member 150 and moved in the mutually opposite directions, the perforated piece 164 fixed to the moving piece 162 is fitted onto the pipe support rod 166 to be supported. A hole is drilled in the outer peripheral surface of the muffler pipe 200.

As described above, after the perforation is made to the muffler pipe 200, the elastic spring 167c when the pressing force of the wedge member 150 for pressing the moving piece 162 by the original position upward of the operating member 130 disappears. By the restoring force of the moving piece 162 is repositioned. This state is the state of FIGS. 3 and 4.

On the other hand, as described above, the process of drilling a hole in the muffler pipe 200 by one operation of the operation member 130 after the pressing operation of the operation key 140 has been described for a long time, such a process in a very short time Is done.

As described above, the muffler pipe 200 in which a hole is drilled through a process in which a hole is drilled in the muffler pipe 200 by a single operation of the operating member 130 after pressing the operation key 140 is a pipe. Removing from the support rod 166, and inserting the other muffler pipe 200 to the pipe support rod 166 is ready for the next operation. In this state, when there is a pressing action of the operation key 140, the pipe drilling apparatus 100 drills a hole through the same process as described above and returns to the original position.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea of the present invention.

As described above, according to the present invention, an effect of manufacturing a product having a more accurate standard is developed through the development of a punching device for drilling a plurality of holes corresponding to both sides of the pipe by one operation. It will be obvious that this will improve the quality and reliability of the product.

On the other hand, the present invention has the effect that it is possible to facilitate the pipe drilling operation by allowing a plurality of holes corresponding to both sides of the pipe to be punched by one operation.

In addition, the present invention enables the drilling of a plurality of holes corresponding to both sides of the pipe by one operation to prevent the risk of work that can occur by the existing method.

Claims (6)

In the pipe drilling device for drilling holes in the muffler pipe, A base consisting of a structure of a certain height from the bottom; A driving motor installed at an upper side of the base to provide a driving force by applying power; An operating member installed on the upper front side of the base such that the linear reciprocating motion is performed vertically by the driving of the driving motor; An operation key installed at one lower side of the base to reciprocate the operation member once by a pressing operation of an operator; A wedge member spaced apart at a predetermined distance from each of the front and rear sides of the lower surface of the operating member to face each other in the same size and shape; And Perforated pipe, characterized in that provided in the upper base surface of the lower side of the wedge member to support the muffler pipe and to drill holes in both sides of the muffler pipe by the downward movement of the operating member. Device. The pipe drilling apparatus of claim 1, wherein the operation key is installed at a lower side of the base to be pressed by an operator's foot. According to claim 1, The drilling means is fixed to the opposite sides installed and fixed to the upper surface of the base; A moving piece installed opposite to each of the inner surfaces of the two fixing pieces, the moving piece being moved in the opposite direction by the pressing of the wedge member when the operating member is moved downward; A movable piece guide member slidably connected to both sides of the two movable pieces to guide the linear movement when the movable pieces are moved; A plurality of perforated pieces, one end of which is fixed to each of the two moving pieces and installed to protrude a predetermined length in a direction opposite to each other, while drilling a hole in the muffler pipe when the moving piece is moved; A perforated piece guide member which is installed on each of the inner surfaces of the two moving pieces so as to face each other while being guided so that the plurality of perforated pieces move straight in opposite directions; A pipe support rod which is installed toward the front side between the two perforated piece guide members and supports the muffler pipe fastened to its outer circumferential surface by forming a plurality of perforated piece entrance holes related to the perforated piece; And And a means for returning the moving piece pressed and moved by the wedge member. According to claim 3, wherein the plurality of punching piece entrance holes formed on both sides of the pipe support rod is formed in a position associated with each of the punching piece so that the drill piece is supported on the pipe support rod in accordance with the downward movement of the operating member Pipe drilling apparatus, characterized in that the drilling piece enters when drilling holes on both sides of the muffler pipe. According to claim 3, The means for repositioning the moving piece, the one end is fixed to each of the moving piece, the other end is sliding sliding through the fixing piece to protrude out of the fixing piece; A screw member coupled to the protruding end of the sliding rod; And And an elastic spring installed on an outer circumferential surface of the sliding rod between the outer surface of the fixing piece and the screw member, the elastic spring acting in a direction in which the moving piece is always in the original position. According to any one of claims 3 to 5, wherein the upper side between the fixing piece and the moving piece to enter the wedge member between the fixing piece and the moving piece in accordance with the downward movement of the operating member is the wedge member Pipe drilling apparatus, characterized in that formed in the wedge-shaped wedge member entry portion related to the shape of the.