KR100348144B1 - Punching press - Google Patents

Abstract

The present invention relates to a punching press, the present invention has a cylinder chamber 12 therein, the housing 10 through which the main shaft coupling hole 18 passes through the cylinder chamber 12, and the main shaft coupling hole (18) is fitted to slide, the upper end is coupled to the upper spindle 20 and the upper spindle 20 coupled to the piston 22 for reciprocating up and down in the cylinder chamber 12, the main shaft coupling hole ( 18 is reciprocated up and down, and is rotated by the main shaft rotating means 40 installed in the housing 10, the cylinder chamber 32 is formed therein, the cylinder chamber 32 is penetrated downward The rod coupling hole 34 is coupled to the lower axis 30 and the piston 52 linearly reciprocating up and down in the cylinder chamber 32 of the lower axis 30 is coupled up and down along the rod coupling hole 34. Reciprocating with the rod 50, the lower end of the rod 50 is formed with a holder 54, by the holder 54 and selectively coupled / min with the rod 50 In the same direction as the punching part 60, the punching part 60 and the die holder rotation part 80 are supported by the punching part 60 to reciprocate up and down in conjunction with the rod 50 and punch the work material W. Rotating, the workpiece material (W) is mounted on the upper surface die portion 70 for performing a punching operation in cooperation with the punching portion 60, and a plurality of punch insertion hole for receiving the punching portion 60 ) Is formed at predetermined edges along the circumferential direction at the edge, and has an upper diameter 90 and a larger diameter than the upper diameter 90 that rotate about the upper central axis 94. A plurality of die insertion holes 102 for receiving the die portion 70 in the circumferential direction is rotated about the lower center axis 104, which is spaced apart from the 94 at a predetermined distance from each other, the center of the lower axis (104) It is formed at predetermined equal intervals, and each insertion hole corresponds to the punching position when rotating Is a tool lock / to prevent the flow of the punching portion 60 accommodated in the punch insertion hole 92 when the lower insert 100 is located on the concentric line with the punch insertion hole 92, and the upper slot 90 is rotated. The release means 110, the die-locking / release means 120 for preventing the flow of the die portion 70 accommodated in the die insertion hole 102 during the rotation of the bottom 100, and the die portion 70 punching It consists of a clamping means (130) to hold the flow does not flow in position, the present invention is a tool change operation is made quickly because a plurality of pre-set tools on the turret is rotated along the turret exchanged Automatic and continuous drilling, the tool and die rotate along the turret. When the punching position is reached, the angle of the tool and die is changed easily and quickly by the rotating means, so the angle can be freely changed even when drilling holes of the same shape. Various by each It has the ability to effect a boring.

Description

Punching press {Punching press}

The present invention relates to a punching press, and more particularly, to continuously and automatically drill holes of various sizes and shapes.

As is well known, punching presses are disclosed in various types as devices for continuously and automatically drilling holes of various sizes and shapes.

When explaining a punching press using a turret in order to help the present invention among various types of punching presses, after presetting a plurality of tools on the turret, the turret rotates and moves the desired tool to the punching position to automatically perform the punching operation. As a result, various holes can be easily drilled.

However, these punching presses can quickly and easily change tools to drill holes of various shapes continuously, but since the angles of the tools themselves are not changed, the punching press has the same shape but if you try to drill holes with different angles, There was an inconvenience in having to replace the die.

On the other hand, a punching press is disclosed in which the angle of the tool itself is adjusted. However, since the operation of adjusting the angle of the tool itself is complicated and time-consuming, the punching press is time-consuming when the tool is changed, so that the overall punching work is performed. There was a delay.

That is, the punching press that can adjust the angle of the tool takes a long time to change the tool, the punching press that can change the tool quickly had a disadvantage that the angle of the tool itself can not be adjusted.

The present invention has been made in view of the above-described problems, the object of which is that the tool rotates along the turret so that the tool can be changed quickly and at the same time the tool itself can be easily rotated at the desired angle It is to make it easier, faster and more perforated holes of various shapes.

In order to achieve the above object, the present invention has a cylinder chamber therein, and is inserted into the housing through which the shaft coupling hole penetrates downwardly from the cylinder chamber and slides in the shaft coupling hole, and the upper end portion reciprocates up and down in the cylinder chamber. The upper shaft is coupled to the piston and the upper shaft is reciprocated up and down along the shaft coupling hole, and is rotated by the spindle rotating means installed in the housing, the cylinder chamber is formed inside the cylinder chamber penetrates downward Combining the lower shaft and the rod coupling hole is in communication with the piston which linearly reciprocates up and down in the cylinder chamber of the lower shaft, and reciprocates up and down along the rod coupling hole, the rod formed by the holder at the bottom and the rod and A punching part for punching the workpiece material and reciprocating up and down by selectively engaging and disconnecting, interlocking with rods when joining, and die holder It is supported on the whole and rotates in the same direction as the punching part, the workpiece is loaded on the upper surface to perform punching work in cooperation with the punching part, and a plurality of punching insertion holes accommodating the punching part along the circumferential direction at the edge. It is formed at predetermined equal intervals, and rotates about an upper turret rotating about an upper central axis, and having a larger diameter than the upper turret, and spaced apart from the upper central axis at a predetermined distance from each other. At the edge, a plurality of die insertion holes are formed at predetermined equal intervals to accommodate the die portion along the circumferential direction, and each insertion hole has a lower turret positioned concentrically with the corresponding punching insertion hole at the punching position at the time of rotation. Tool-locking release means for preventing the flow of the punching portion accommodated in the punching insertion hole during rotation, and die insertion during rotation of the lower lid Provided is a punching press comprising die-locking release means for preventing flow of a die portion received in a hole and clamping means for holding the die portion from flowing at the punching position.

1 is an overall cross-sectional view of the present punching press,

2a and 2b are a side view and a plan view schematically showing a turret in the present invention

3 is a perspective view showing a punching part and a die part in the present invention;

4 is a cross-sectional view showing a punching portion and a die portion in the present invention,

Figure 5 is an exploded cross-sectional view showing a punching portion in the present invention,

Figure 6 is an exploded cross-sectional view showing the die portion in the present invention,

7 is a plan view showing the die portion and the clamping means in the present invention,

8 is a cross-sectional view taken along the line A-A of FIG.

9 is a sectional view showing an operating state of the locking / release means and the clamping means.

◎ Explanation of symbols for main part of drawing

1: body frame 10: housing 12: cylinder chamber

14: first passage 16: second passage 18: spindle coupling hole

20: Upper spindle 22: Piston 24: Spindle position sensor

26: flange portion 30: lower spindle 32: cylinder chamber

34: cylinder chamber 40: spindle rotation means 42: worm wheel

44: worm 46: motor 50: rod

52: piston 54: holder 54a: coupling groove

54b: Jamming 56: First Passage 58: Second Passage

60: punching part 62: tool 62b: keyway

65: anti-rotation key 66: tool holder 66a: key groove

66b: flow preventing protrusion 67: compression spring 68: connecting member

68a: locking portion 68b: locking groove 68e: flow preventing groove

70: die portion 72: die 72a: punching ball

72b: keyway 74: die holder 74a: coupling groove

74b: keyway 74c: discharge hole 74d: release prevention groove

80: die holder rotating portion 81: rotating member 81a: through hole

81b: keyway 82: support 84: worm wheel

86: worm 88: motor 90: from above

92: punching hole 94: upper center axis 100: lower hard

102: die insertion hole 104: lower center axis 110: tool locking / release means

112: key casing 114: flow preventing key 116: pneumatic cylinder

116a: rod 117: stopper 118: tool locking / release detection sensor

120: die-locking / release means 122: key casing

124: flow prevention key 126: pneumatic cylinder 126a: rod

127: stopper 128: die-locking / release detection sensor

130: clamping means 132: fixed clamp 132a: fixed locking projection

134: movable clamp 134a: movable locking projection 136: slider

136a: engaging jaw 137: compression spring 138: air cylinder

138a: rod 138b: locking piece 139: position sensor

140: first hydraulic pressure supply means 142: oil distribution supply member

142a: first supply path 142b: second supply path 144: hydraulic solenoid valve

160: tool position sensor 170: die position sensor

200: position adjusting means 202: protruding end 204: fixing member

204a: slider groove 206: adjusting bolt W: workpiece material

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

1 to 4, the body frame 2 is fixedly installed to the housing 10 by bolts. A cylinder chamber 12 is formed at an upper portion of the housing 10, and a spindle coupling hole 18 penetrating downward is formed at a bottom of the cylinder chamber 12, and a cylinder is formed at one side of the cylinder chamber 12. The first passage 14 communicating with the upper portion of the chamber 12 and the second passage 16 communicating with the lower portion of the cylinder chamber 12 are formed to penetrate to the outside.

A main shaft is coupled to the main shaft coupling hole 18 is operated, the main shaft is divided into an upper axis (20) and a lower axis (30).

The upper end of the upper shaft 20 is coupled to the piston 22 which is operated in the cylinder chamber 12 of the housing 10, the piston 22 is linearly reciprocating up and down by the first hydraulic pressure supply means 140 While moving the upper axis 20.

The first hydraulic pressure supply unit 140 is composed of an oil distribution supply member 142 attached to one side of the housing 10 and a hydraulic solenoid valve 144 for supplying hydraulic pressure to the oil distribution supply member 142. The supply member 142 is provided with a first supply path 142a communicating with the first passage 14 of the housing 10, and a second supply path 142b communicating with the second passage 16, thereby providing a hydraulic solenoid. The hydraulic pressure supplied from the valve 144 is selectively supplied to the cylinder chamber 12. Since the oil distribution supply member 142 is attached to one side of the housing 10, the hydraulic pressure is quickly transmitted.

Herein, the piston is described as being operated by hydraulic pressure, but pneumatic pressure may be used instead of hydraulic pressure.

The lower shaft 30 is connected to the upper shaft 20 by the flange portion 26 and reciprocates up and down, and rotates in the flange portion 26 by the main shaft rotating means 40. In addition, one side of the flange portion 26 is equipped with a main shaft position sensor 24, the main shaft position sensor 24 detects whether the main shaft is in the raised position or the lowered position.

The main shaft rotating means 40 has a worm wheel 42 coupled to the outer diameter of the lower spindle 30, and the worm wheel 44 is engaged with the worm wheel to transfer the driving force of the motor 46 to the worm wheel 42. It consists of Here, the motor 46 can be selectively rotated forward and reverse, whereby the lower axis 30 is free to rotate in the desired direction.

And, the lower end of the lower axis 30, the tool position sensor 160 is installed on one side to detect the rotation angle or position of the lower axis 30 when replacing the tool to the lower spindle 30 in the set position Rotated. Here, the tool position sensor 160 is used as a contact sensor.

In addition, a cylinder chamber 32 is formed inside the lower shaft 30, and a rod coupling hole 34 penetrates downward in the bottom of the cylinder chamber 32. In addition, a first passage 56 communicating with an upper portion of the cylinder chamber 32 and a second passage 58 communicating with a lower portion of the cylinder chamber 32 are formed at one side of the lower shaft 30. However, hydraulic pressure is selectively supplied to the first passage 56 and the second passage 58 by the second hydraulic pressure supply means. Here, since the second hydraulic pressure supply means is configured in the same manner as the first hydraulic pressure supply means 140, the description thereof will be omitted.

The rod 50 is coupled to the rod coupling hole 34 of the lower shaft 30 so that the rod 50 is slid, and the piston 50 installed in the cylinder chamber 32 is coupled to the upper end of the rod 50 so that the rod 50 is horizontal. The decoupling hole 34 reciprocates up and down. In addition, the holder 54 is fixed to the lower end of the rod 50, the holder 54 is formed with a coupling groove 54a penetrating from one side to the other side. Here, the coupling groove 54a is formed to be curved in an arc shape, and the locking jaw 54b is formed at the lower end of the coupling groove 54a.

The puncher 60 is optionally connected to the rod 50 by the holder 54. As shown in FIG. 5, the punching part 60 has a tool 62 having a screw hole 62a formed at the center of the upper surface thereof and a key groove 62b formed along the longitudinal direction at one side thereof, and the tool 62 has a connection member. It fits in the engaging hole 68d formed in 68. As shown in FIG.

A locking portion 68a is formed on an upper surface of the connecting member 68, and the locking portion 68a is formed to be curved in an arc shape so as to fit into the coupling groove 54a of the holder 54 and protrude upward. . A locking groove 68b is formed at the lower end of the locking portion 68a so that the locking jaw 54b of the holder 54 is caught, and a bolt supporting hole through which the bolt 64 passes through the upper surface of the locking portion 68a. 68c is formed to communicate with the coupling hole 68d, and the bolt 64 penetrating the bolt support hole 68c is fastened to the screw hole 62a formed in the tool 62 to connect the connecting member 68 and the tool. Join 62.

In addition, a flow preventing groove 68e is formed in one side of the connecting member 68 along the vertical direction, and a tool rotation preventing key is provided on the side adjacent to the flow preventing groove 68e to prevent the flow of the tool 62. 65 is penetrated and fitted into the key groove 62b formed on one side of the tool 62.

The connection member 68 is coupled to the inner diameter of the tool holder 66 and slides, and a plurality of compression springs 67 are installed at equal intervals between the bottom surface of the tool holder 66 and the connection member 68. To elastically support the connecting member 68 in the upward direction. In addition, the outer side of the tool holder 66 is formed by cutting the key groove 66a in a downward direction at a position corresponding to the tool locking / release means 110 to be described later, the flow preventing groove in the inner side of the tool holder 66 A flow preventing protrusion 66b is formed to fit the 68c and prevent the flow of the connecting member 68.

Such a punching part 60 is inserted into the punch insertion hole 92 formed at the edge of the upper riet 90 to rotate together with the upper riet 90, and the punching unit 60 rotates to the connecting member 68. The formed locking portion 68a is selectively fitted into the coupling groove 54a formed in the holder 54 and coupled thereto. At this time, since the locking jaw 54b of the holder 54 is caught by the locking groove 68b of the connecting member 68, when the holder 54 is raised, the punching part 60 also rises with the holder 54. It is fixedly supported by the lower axis (30).

The die portion 70 is disposed below the punching portion 60, and the die portion 70 is also inserted into the die insertion hole 102 formed at the edge of the bottom portion 100 to rotate together with the bottom portion 100. do.

Referring to FIG. 6, the die part 70 includes a punching hole 72a corresponding to the tool 62, a die 72 having a key groove 72b formed in a vertical direction on one side thereof, and a die 72 formed on the die part 70. It is divided into a die holder 74 having a coupling groove 74a to be coupled. The die holder 74 has a key groove 74b corresponding to the key groove 72b of the die 72 on one side of the coupling groove 74a, and a discharge hole through which punched scrap is discharged at the bottom of the coupling groove 74a. 74c is formed to penetrate downward. In addition, the outer circumferential surface of the die holder 74 is formed with a departure preventing groove 74d in a circular shape along the outer circumferential surface, and a key groove 74e is formed on the upper side of the separation preventing groove 74d so as to correspond to the tool locking / release means described later. The key groove 74f is also formed at one side of the lower end portion.

In order to prevent the flow of the die 72, the die fixing key 75 is fitted into the key groove 72b of the die 72 and the key groove 74b of the die holder 74, and the flow of the die holder 74 is prevented. The die holder fixing key 76 is fitted in the key groove 74f of the die holder 74 and the key groove 81b formed in the rotating member 81 to be described later.

This die portion 70 is coupled to the die holder rotating portion 80 to rotate along the die holder rotating portion 80. The die holder rotating part 80 includes a rotating member 81 to which the die holder 74 is coupled, a rotating means for rotating the rotating member 81, and a support part 82 supporting the rotating member 81.

A through hole 81a communicating with the discharge hole 74c of the die holder 74 is formed in the inner side of the rotating member 81, and the die holder 74 cooperates with the key groove 74f of the die holder 74. In order to prevent the flow of), the key holder 81b to which the die holder fixing key 76 is fitted is formed.

The rotating means is composed of a worm wheel 84 coupled with the rotating member 81, and the worm 86 is engaged with the worm wheel to transfer the driving force of the motor 88 to the worm wheel 84, In the motor 88 is selectively rotated forward and reverse rotation freely rotating the rotating member 81 in the desired direction.

Here, a die position sensor 170 is installed on one side of the rotating member 81 to detect the rotation angle or position of the rotating member 81 to set the rotating member 81 when the die 70 is replaced. It will rotate to the right position. Here, the die position detecting sensor 170 uses a contact sensor.

On the other hand, the disk top and bottom 90 and the bottom 100 is provided with a predetermined gap through which the workpiece material (W) passes.

The top 90 is rotated about the upper center shaft 94, and a plurality of punch insertion holes 92 have a predetermined equal interval along the circumferential direction to accommodate the punching portion 60 at the edge thereof. Is formed.

The lower 100 has a larger diameter than the upper 90 and rotates about the lower central axis 104 which is different from each other at a predetermined distance from the upper central axis 94. In addition, a plurality of die insertion holes 102 are formed at predetermined edges along the circumferential direction so as to accommodate the die portion 70 at the edges, and each die insertion hole 102 is formed at a punching position during rotation. When it reaches, it is placed on the same line as the corresponding punch insertion hole 92. That is, the upper 90 and lower 100 are spaced apart from each other by a predetermined distance from each other to rotate around a central axis having a different position, but the rotational speed is different, so that each insertion hole is matched at the punching position to perform a punching operation. Make it work.

Here, the upper and lower liths 90 and 100 are rotated by a driving means (not shown). The driving means comprises a normal motor and a transmission means for transmitting the driving force of the motor to the upper and lower riets. The transmission means preferably forms a gear along the circumferential direction on the sides of the top and bottom, and transfers the driving force through the intermediate gear, but may also use a belt or chain.

On the other hand, when the punching part 60 reaches the punching position while rotating, it is supported to be selectively connected to the lower axis 30 by the holder 54 formed at the lower end of the rod 50 as described above, and the die part 70 Is rotated and supported by the clamping means 130 when the punching position is reached.

4, 7 and 8, the clamping means 130 is composed of a fixed clamp 132, a movable clamp 134 and an air cylinder 138 for operating the movable clamp 134.

The fixed clamp 132 is fixed on the support portion 82 of the die holder rotating portion 80 so that collision does not occur when the die holder 74 rotates along the bottom 100, and prevents the die holder 74 from being separated. A fixed locking projection 132a fitted to a portion of the groove 74d is formed.

On the opposite side from the fixed clamp 132, a movable clamp 134 is installed to selectively hold the die holder 74, and the movable clamp 134 is provided with a movable locking projection fitted into the escape preventing groove 74d. 134a is formed, and the movable clamp 134 is fixed to the upper one side of the slider 136.

The slider 136 is installed on the rotating member 81 to rotate together with the rotating member 81, and compression springs 137 are installed on both sides of the slider 136 so that the movable clamp 134 is always elastically supported in the holding direction. do. In addition, a locking jaw 136a is formed at an upper side of the slider 136.

In addition, an air cylinder 138 is installed at one side close to the slider 136, and a rod 138a of the rod 138a of the air cylinder 138 is fixed at an end thereof, and the latch piece 138b is a slider. The latching jaw 136a of 136 is selectively caught by the locking jaw in a direction in which the movable clamp is separated from the die holder.

Then, the position detecting sensor 139 for detecting the position of the movable clamp 134 is installed. Here, the position detecting sensor 139 is one at a position capable of detecting the position where the movable clamp 134 is separated, and one at a position capable of detecting the position where the movable clamp 134 holds the die holder 74. Are each installed and the two work in pairs.

On the other hand, the tool locking / release means is installed on one side of the top from the outlet 90 so as not to flow when the punching portion 60 rotates along the top 90.

Referring to FIG. 4, the tool locking / release means 110 is provided with a key casing 112 fixed on the top 90 and a tip portion of the key casing 112 is provided in the tool holder 66. A flow preventing key 114 is selectively installed in the formed key groove 66a to prevent the flow of the tool holder 66, and a recess 114a is formed at an upper side of the flow preventing key 114.

In addition, a spring 115 for elastically supporting the flow preventing key 114 in the tool holder direction is installed in the key casing 112, and a pneumatic cylinder 116 is disposed above the key casing 112. The pneumatic cylinder 116 is fixed with a stopper 117 at one end of the rod 116a, and the stopper 117 moves in a direction to separate the flow preventing key 114 from the tool holder 66 while descending. That is, an inclined surface is formed at the lower end of the stopper 117 in contact with one side end of the recess 114a formed in the flow preventing key 114. When the stopper 117 descends, the recess 114a moves along the inclined surface to prevent flow. The key 114 is separated from the keyway 66a of the toolholder 66.

In addition, a tool locking / release detection sensor 118 is installed above the rear end of the flow prevention key 114, and the tool locking / release detection sensor 118 has a flow prevention key 114 locked in the groove 114a. Two sensors operate in pairs, each sensing the closed state and the flow prevention key separated from the groove.

Then, at one side of the bottom 100, die-locking / release means is installed so that the die holder 74 does not flow when rotating along the bottom 100.

The die-locking / release means 120 is provided with a key casing 122 fixed on the bottom 100, and the inside of the key casing 122 is provided with a key groove 74e formed at the die holder 74. A flow prevention key 124 is selectively installed to prevent flow of the die holder 74, and a recess 124a is formed at an upper side of the flow prevention key 124.

In addition, a spring 125 for elastically supporting the flow preventing key 124 in the die holder direction is installed in the key casing 122, and a pneumatic cylinder 126 is disposed below the key casing 122. The pneumatic cylinder 126 is fixed with a stopper 127 at one end of the rod 126a, and the stopper 127 moves up and moves the flow preventing key 124 in a direction to be separated from the die holder 74. That is, an inclined surface is formed at the upper end of the stopper 127 in contact with one end of the recess 124a formed in the flow preventing key 124. When the stopper 127 is raised, the recess 124a moves along the inclined surface to prevent flow. The key 124 is separated from the keyway 74e of the die holder 74.

In addition, a die locking / release detection sensor 128 is installed below the rear end of the flow prevention key 124, and the die locking / release detection sensor 128 has a flow prevention key 124 locked in the groove 124a. The two sensors operate in pairs, each sensing the closed state and the flow prevention key from the groove.

On the other hand, when the punch press is used for a long time, the position of the punching hole is minutely changed. In order to adjust the position of the punching hole, the die holder rotating part 80 and the upper end 90 and the lower end 100 are respectively positioned at the ends. The adjusting means 200 is installed.

Here, since the position adjusting means 200 are of the same configuration, it will be described together with the same reference numerals.

The position adjusting means 200 forms a protruding end 202 protruding outward at each end of the support portion 82 and the upper center shaft 94 and the lower center shaft 104 of the die holder rotating portion 80, The projecting end 202 is pressed to adjust the position.

The fixing member 204 is coupled to the protruding end 202 in all directions, and the slider member 204 is formed with the slider groove 204a so that the protruding end 202 is coupled and slides. Then, four pairs of two adjusting bolts 206 penetrating the slider grooves 204a at each position are fastened to four sides of the fixing member 204, and the adjusting bolts 206 press the protruding end 202. The position will be adjusted.

Now, the operation and operation of the present invention will be described.

First, the hydraulic solenoid valve 144 of the first hydraulic pressure supply unit 140 operates to supply hydraulic pressure to the second passage 16 communicating with the cylinder chamber 12 of the housing 10 via the oil distribution supply member 142. Supply. Then, as the piston 22 is raised, the upper axis 20 and the lower axis 30 also rise together. However, the piston 52 coupled to the rod 50 maintains the lowered state by the hydraulic pressure introduced into the first passage 56. That is, the rod 50 coupled with the lower shaft 30 maintains the raised state together with the lower spindle 30, and at the same time, the rod 50 itself maintains the lowered state inside the lower shaft 30. .

Next, the punching portion 60 is inserted into the punch insertion hole 92 of the upper rivet 90, and the die portion 70 is inserted into the die insertion hole 102 of the lower riet 100, and the upper portion is driven through the driving means. Rotating turret 90 and the bottom 100 from the center axis. At this time, the upper 90 and the lower 100 are different from each other in diameter, but the punching portion 60 and the die portion 70 are placed on the concentric line at the punching position by the rotational speed.

Then, when the punching part 60 reaches the punching position when rotating from the top to the lid 90, as shown in FIG. 9, the engaging portion 68a formed in the connecting member 68 is the coupling groove of the rod 50. The rod 50 and the punching part 60 are connected while being fitted by 54a.

Then, the hydraulic pressure is supplied to the second passage 58 through the hydraulic solenoid valve of the second hydraulic pressure supply means to raise the piston 52 of the cylinder chamber 32. At this time, the rod 50 rises together with the piston 52, and together with the rod 50 because the locking jaw 54b of the holder 54 is caught in the locking groove 68b of the locking portion 68a. The punching unit 60 is also raised. Then, when the upper surface of the connection member 68 of the punching portion 60 is in close contact with the bottom surface of the lower shaft 30, the rising of the punching portion 60 is stopped, at this time the piston and the main shaft to continue to rise by the hydraulic pressure Since the punching portion 60 is in close contact with the lower axis 30 because it has a force does not fall easily. Here, the rising and falling state of the upper axis 20 and the lower axis 30 is detected and operated by the main axis position sensor 24.

On the other hand, when the punching portion 60 rotates along the top 90, the tool locking / release means 110 is operated as shown in FIG. 4 to prevent the position of the punching portion from changing.

Referring to the tool locking / release means 110, when the punching part 60 rotates along the top 90, the pneumatic cylinder 116 is operated to retract the rod 116a. Then, the stopper 117 fixed to the end of the rod 116a is separated from the groove 114a of the flow preventing key 114 while being raised, and the flow preventing key 114 is punched by the restoring force of the spring 115. The tool holder 66 is inserted into the key groove 66a formed in the tool holder 66 to prevent the flow of the tool holder 66. This toollocking / release detection sensor 118 is to rotate the top 90 from the top.

However, when the punching part 60 reaches the punching position while rotating along the top 90 from the top, as shown in FIG. 4, the tool locking / release means 110 is operated in the opposite direction so that the flow preventing key 114 is the keyway. Separated at 66a to allow the punching portion 60 to rotate freely. That is, when the stopper 117 descends while the rod 116a is extended by the pneumatic cylinder 116, the end of the stopper 117 when the stopper 117 is inserted into the groove 114a of the flow preventing key 114 A groove 114a moves along the inclined surface formed in the direction away from the tool holder 66 while the flow preventing key 114 is separated from the key groove 66a.

Next, when the die portion 70 reaches the punching position while rotating in the same direction as the punching portion 60 along the bottom 100, the clamping means 130 is operated as shown in FIG. It catches the flow of the portion (70). That is, when the die portion 70 rotates from the bottom to the punching position to reach the punching position, the departure preventing groove 74d of the die holder 74 is fitted into the fixing locking protrusion 132a of the fixing clamp 132. While supporting the one side of the die holder 74. When the die portion 70 reaches the punching position as described above, the air cylinder 138 is operated to extend the rod 138a, thereby causing the locking piece 138b, which was pulling the locking jaw 136a, to the locking jaw. Away from 136a. At this time, the slider 136 is moved in the holding direction by the restoring force of the compression spring 137 installed inside the slider 136, and the movable locking projection 134a of the movable clamp 134 is the die holder 74. It is coupled to the other side of the departure prevention groove (74d) of the die holder 74 is prevented from being separated in the upward direction by the cooperation with the locking projection (132a). Here, the air cylinder 138 is operated by the position sensor 139 for detecting the position of the fixed clamp 132.

Then, when the die portion 70 rotates along the bottom 100, the die locking / release means 120 is operated as shown in FIG. 9 to prevent the position from being changed by the flow.

Referring to the die-locking / release means 120, when the die portion 70 rotates along the bottom 100, the pneumatic cylinder 126 is operated to retract the rod 126a. Then, the stopper 127 fixed to the end of the rod 126a is separated from the groove 124a of the flow preventing key 124 while descending, and the flow preventing key 124 is driven by the restoring force of the spring 125. It fits in the key groove 74e formed in the die holder 74 of 70 to prevent the flow of the die holder 74. This die-locking / release detection sensor 128 detects and rotates the bottom 100.

However, when the die portion 70 reaches the punching position while rotating along the bottom 100, as shown in FIG. 4, the die-locking / release means 120 is operated in the opposite direction so that the flow preventing key 124 is the key groove. Separated at 74e to allow the die portion 70 to rotate freely. That is, when the stopper 127 rises while the rod 126a is extended by the pneumatic cylinder 126, the end of the stopper 127 when the stopper 127 is inserted into the groove 124a of the flow preventing key 124 The groove 124a is moved away from the die holder 74 along the inclined surface formed in the flow preventing key 124 to be separated from the key groove 74e.

Thus, when the punching part 60 and the die holder 74 reach the punching position, the workpiece | work material W moves between the punching part 60 and the die holder 74 to perform a punching operation | work, and die | dye 72 It will be placed on the top of).

Then, the tool 62 and the die 72 are rotated to the set positions, respectively. That is, the motor 46 of the main shaft rotation means 40 is operated so that the worm wheel 42 engaged with the dignity 44 rotates, and the lower axis 30 coupled with the worm wheel 42 rotates. While rotating the tool 62 to the set position. At the same time, the motor 88 of the rotating means is operated so that the worm wheel 84 engaged with the dignity 86 is rotated, and the rotating member 81 coupled with the worm wheel 84 is rotated, so that the die ( 72 is rotated to the same position as that of the tool 62. At this time, since the motor 46 can be selectively rotated forward and reverse, the punching hole can freely change the angle.

When the positions of the tool 62 and the die 72 are determined in this way, the tool 62 is lowered to perform the punching operation on the workpiece material W. That is, when the first hydraulic pressure supply means 140 is operated to supply the hydraulic pressure to the first passage 14 and the hydraulic pressure in the cylinder chamber 12 to the second passage 16 is discharged, the upper and lower spindles 20 30 is lowered, and the tool 62 interlocked with the lower spindle is also lowered to drill holes in the workpiece material W. On the contrary, when the hydraulic pressure is supplied to the second passage 16 and the hydraulic pressure of the cylinder chamber 12 is discharged to the first passage 14, the tool 62 is raised together with the upper and lower spindles. (W) is moved. In this way, when the hydraulic pressure is alternately supplied to the first passage 14 and the second passage 16 by the first hydraulic pressure supply means 140, the tool 62 along with the upper and lower spindles repeatedly moves up and down. Therefore, a continuous and continuous drilling operation takes place.

When this punching operation is operated, the tool rotation prevention key 65 is coupled to the key groove 62b of the tool 62 through the connecting member 68, so that the flow of the tool 62 is prevented and the die ( The flow of the die 72 seated on the die holder 74 is prevented by the die fixing key 75 fitted in the key groove 72b of the 72 and the key groove 74b of the die holder 74, and the die holder 74 is prevented. The flow of the die holder 74 is prevented by the die holder fixing key 76 fitted in the key groove 74f and the key groove 81b of the rotating member 81 formed in the above.

Now, when it is necessary to exchange the punching portion 60 and the die portion 70 to drill holes of different shapes, the punching portion 60 and the die portion having the tool 62 and the die 72 of different shapes are needed. 70 is moved while rotating along the turret to the punching position.

First, when the punching unit 60 is moved, the punching unit rotates to the set position. Then, the hydraulic pressure is supplied to the second passage 16 through the first hydraulic pressure supply means 140 and the hydraulic pressure is discharged to the first passage 14 so that the piston 22 rises and the lower shaft 30 rises. . Then, the hydraulic pressure is supplied to the first passage 56 through the second hydraulic pressure supply means and the hydraulic pressure is discharged to the second passage 58 so that the piston 52 descends and the rod 50 descends. Next, the pneumatic cylinder 116 of the tool locking / release means 110 is operated so that the flow preventing key 114 is fitted into the key groove 66a of the tool holder 66 to prevent the flow of the tool holder 66. . In this state, when the upper rivet 90 is rotated, the locking portion 68a of the punching portion 60 is separated from the holder 54 of the rod 50 while the punching portion 60 follows the upper rivet 90. After the rotation, the new punching part 60 is moved to the punching position to prepare for drilling a new shape hole. Of course, as described above, when the new punching part 60 is moved to the punching position, the flow preventing key 114 is separated from the key groove 66a, and the rod 50 is coupled with the punching part 60 to the main shaft. Together the punching section 60 is activated.

On the other hand, when moving the die part 70, the die part is rotated to the set position. Then, the pneumatic cylinder 126 of the die-locking / release means 120 is operated so that the flow preventing key 124 is fitted into the key groove 74e of the die holder 74 to prevent the flow of the die holder 74. When the rod 138a is contracted by the operation of the air cylinder 138, the locking piece 138b fixed to the end of the rod 138a moves in a direction away from the die holder 74 to hold the locking jaw 136a. Pull to move the slider 136. Then, the movable clamp 134 fixed to the slider 136 is separated from the holding position to allow the die portion 70 to rotate. When the die portion 70 is freely rotated as described above, the die portion 70 rotates along the bottom 100, and the new die portion 70 is moved to the punching position and punched to drill a hole having a new shape. Cooperate with department 60. Of course, when the new die portion 70 reaches the punching position, the movable clamp 134 is moved again to prevent rotation of the die portion 70, and the flow preventing key 124 is separated from the key groove 74e.

On the other hand, if a minute error occurs in the punching operation by using the device for a long time by the position adjusting means 200 provided at each end of the die holder rotating portion 80, the upper center shaft 94 and the lower center shaft 104 What is necessary is just to adjust the position of the support part 82, the upper earlet 90, and the lower earlet 100.

That is, tightening the adjustment bolt 206 fastened to one side of the plurality of adjustment bolts 206 fastened to all sides of the fixing member 204 and loosen the adjustment bolt 206 fastened to the opposite side, the adjustment bolt 206 ) Pressurizes the protruding end 202 so that the position of the support 82, the top 90 and the bottom 100 are finely moved. In this way, while adjusting the position of the support portion 82, the top from the top 90 and the bottom from the bottom 100, the fine error of the punching operation is corrected so that the hole can be drilled at the correct position at all times.

As described above, according to the present invention, since a plurality of tools preset on the turret are exchanged while rotating along the turret, a tool change can be performed quickly, and holes of various shapes can be automatically and continuously drilled. When the die rotates along the turret and reaches the punching position, the angle between the tool and the die is changed easily and quickly by the rotating means, so that even if a hole of the same shape is drilled, the angle can be freely changed and drilled at various angles. .

In addition, the present invention is a fine error occurs in the tool and the die when the drilling operation for a long time, there is an advantage that can always be punctured precisely because such an error can be easily adjusted through a fine adjustment means, because it is produced directly in the country Compared to the device that relies on imports, the price is lower and the A / S can be received more quickly.

Claims (11)

A housing 10 having a cylinder chamber 12 therein and having a main shaft coupling hole 18 therethrough in the cylinder chamber 12; An upper spindle 20 coupled to the main shaft coupling hole 18 and having a piston 22 coupled to the upper end thereof to reciprocate up and down in the cylinder chamber 12; It is coupled to the upper spindle 20 and reciprocates up and down along the spindle coupling hole 18, and is rotated by the spindle rotation means 40 installed in the housing 10, the cylinder chamber 32 therein It is formed and the cylinder chamber 32 has a lower shaft 30 in which the rod coupling hole 34 communicates with the downward direction; It is coupled to the piston 52 which linearly reciprocates up and down in the cylinder chamber 32 of the lower axis 30, and reciprocates up and down along the rod coupling hole 34, the lower end of the rod (54) 50); A punching part 60 which is selectively coupled / separated from the rod 50 by the holder 54 and reciprocates up and down in conjunction with the rod 50 to punch the work material W during engagement; A die part supported by the die holder rotating part 80 and rotated in the same direction as the punching part 60, and the workpiece material W is placed on an upper surface thereof to perform a punching operation in cooperation with the punching part 60 ( 70); A plurality of punch insertion holes (92) for accommodating the punching part (60) are formed at predetermined intervals along the circumferential direction at the edges and rotated about the upper central axis (94); It has a larger diameter than the upper 90 from the top 90, and rotates about the lower central axis 104, which is different from each other at a predetermined distance from the upper central axis 94, and has a circumferential direction at the edge. A plurality of die insertion holes 102 for receiving the die portion 70 are formed at predetermined equal intervals, and each insertion hole is located concentrically with the punch insertion hole 92 corresponding to the punching position at the time of rotation. Lower and lower (100); Tool locking / releasing means (110) for preventing the flow of the punching portion (60) accommodated in the punch insertion hole (92) when the top (90) is rotated; Die-locking / releasing means (120) for preventing the flow of the die portion (70) accommodated in the die insertion hole (102) during the rotation of the lower lid (100); Punching press consisting of the clamping means 130 to hold the die portion 70 does not flow in the punching position. According to claim 1, The first hydraulic pressure supply means 140 for supplying the hydraulic pressure so that the piston 22 linearly reciprocates in the cylinder chamber 12 of the housing 10, and the cylinder chamber of the lower shaft 30 And a second hydraulic pressure supply means for supplying hydraulic pressure so that the piston (52) reciprocates linearly at (32). The first supply passage 142a of claim 2, wherein the first hydraulic pressure supply unit 140 is attached to one side of the housing 10 and communicates with the first passage 14 penetrating the upper portion of the cylinder chamber 12. ), An oil distribution supply member 142 having a second supply path 142b communicating with a second passage 16 penetrating the lower portion of the cylinder chamber 12, and the oil distribution supply member 142. Punching press, characterized in that consisting of a hydraulic solenoid valve (144) for selectively supplying hydraulic pressure to the first supply path (142a) and the second supply path (142b). According to claim 2, The punching portion 60 is a tool 62 is formed with a key groove 62b in the longitudinal direction on one side, A coupling hole 68d to which the tool 62 is coupled is formed, and a locking portion 68a that is selectively coupled to the holder 54 of the rod 50 is formed at an upper portion thereof, and a lower portion of the locking portion 68a is formed. A locking groove 68b for catching the locking jaw 54b of the holder 54 is formed, and a bolt supporting hole 68c communicating with the coupling hole 68d is formed on an upper surface of the locking portion 68a. One side of the outer circumferential surface and a connection member 68 having a flow preventing groove 68e formed therein; A tool rotation preventing key 65 penetrating through one side of the connection member 68 to be inserted into the key groove 62b of the tool 62 to prevent rotation of the tool 62; The connection member 68 is coupled to slide along the inner diameter, one side of the inner diameter is inserted into the flow preventing groove (68e) to prevent the flow of the connection member 68 is formed a flow preventing projection (66b), the outer peripheral surface of A tool holder 66 having a key groove 66a formed at a position corresponding to the tool locking / release means 110 at one side thereof; Punching press, characterized in that consisting of a plurality of compression springs (67) mounted between the bottom of the connection member 68 and the tool holder (66) to elastically support the connection member (68). According to claim 4, The engaging portion (68a) is formed to be curved in an arc shape to protrude in the upper direction, the lower end is formed with a locking groove (68b), the holder 54 of the rod 50 is the engaging portion The engaging groove 54a is formed so as to be curved in an arc shape in the same manner as the locking portion 68a so that the 68a can be fitted in the rotational direction when the upper portion is rotated by the top 90. Punching press, characterized in that the engaging jaw (54b) is formed in the lower end of the 54a) is fitted into the engaging groove (68b). According to claim 2, wherein the main shaft rotating means 40 is engaged with the worm wheel 42 and the worm wheel (42) fixed to the lower shaft 30 so that the lower axis 30 is rotated and selectively Punching press, characterized in that consisting of the worm 44 for transmitting the driving force of the motor 46 is rotated forward or reverse to the worm wheel 42. The method of claim 4, wherein the tool-locking / release means 110 and the key casing 112 is fixed on the top 90, A flow preventing key 114 accommodated in the key casing 112 to selectively insert the tip portion into the key groove 66a of the tool holder 66 to prevent the flow of the tool holder 66; A spring 115 installed in the key casing 112 and holding the flow preventing key 114 toward the tool holder 66; A pneumatic cylinder 116 installed above the key casing 112, A stopper 117 fixed to one end of the rod 116a of the pneumatic cylinder 116 to press the flow preventing key 114 to be separated from the tool holder 66; Punching press, characterized in that consisting of a tool locking / release detection sensor for detecting the locking / release state of the flow preventing key (114). According to claim 7, The die portion 70 is formed with a punching hole (72a) corresponding to the tool 62, the die 72 is formed with a key groove (72b) on one side, A coupling groove 74a to which the die 72 is coupled is formed on an upper surface, and a key groove 74b corresponding to the key groove 72b of the die 72 is formed on one side of the coupling groove 74a. A discharge hole 74c through which the punched scrap is discharged is formed downward in the bottom of the 74a, and an escape prevention groove 74d is formed along the outer circumferential surface of the outer circumferential surface, and the die-locking / release means 120 A key holder 74e is formed at a corresponding position, and a die holder 74 having a key groove 74f formed at a lower end thereof; Punching press, characterized in that made of a die fixing key (75) is inserted into the key groove (72b) of the die 72 and the key groove (74b) of the die holder 74 to prevent the flow of the die (72). 9. The die holder rotating part (80) of claim 8, wherein the die holder rotating part (80) includes a rotating member (81) to which the die holder (74) is coupled, a worm wheel (84) coupled to the rotating member (81), and a worm wheel (10). The worm 86 which transfers the driving force of the motor 88 engaged with the 84 and selectively forward or reverse rotation to the worm wheel 84, and the support for supporting the rotating member 81 on the bottom ( 82) punching press, characterized in that consisting of. 10. The method of claim 9, wherein the clamping means 130 is fixed to a position where no collision occurs when the die holder 74 rotates along the bottom 100, it is fitted in a portion of the departure preventing groove (74d) A fixed clamp 132 having a fixed locking projection 132a, and A movable clamp 134 which selectively holds the die holder 74 on the opposite side from the fixed clamp 132, and has a movable locking protrusion 134a fitted into the release preventing groove 74d therein; A slider 136 installed on the rotating member 81 of the die holder rotating part 80 and having a movable clamp 134 fixed to an upper side thereof, and a latching jaw 136a formed at one side thereof; A compression spring 137 installed inside the slider 136 to press the movable clamp 134 to a holding position; It is installed on one side of the slider 136 close to the end of the rod 138a is caught by the locking jaw 136a and pulls the locking jaw 136a in the direction in which the movable clamp 134 is separated from the die holder 74. An air cylinder 138 having a locking piece 138b formed therein; Punching press, characterized in that consisting of a position detecting sensor (139) for recognizing the position of the movable clamp (134). The method of claim 10, wherein the die-locking / unlocking means 120 is a key casing (122) fixed to the bottom 100, A flow preventing key 124 accommodated in the key casing 122 and selectively inserted into a key groove 74e formed in the die holder 74 to prevent the flow of the tool holder 66; A spring 125 installed in the key casing 122 and holding the flow preventing key 124 toward the die holder 74; A pneumatic cylinder 126 installed below the key casing 122, A stopper 127 connected to one end of the rod 126a of the pneumatic cylinder 126 to press the flow preventing key 124 to be separated from the die holder 74; Punching press, characterized in that consisting of a die-locking / release detection sensor for detecting the locking / release state of the flow preventing key (124).