JP5573552B2 - Punch pin angle adjusting device and punching machine - Google Patents

Description

  The present invention is a punching machine in which a punch unit having a punch pin is operated to form a hole in a sheet-like workpiece such as a ceramic green sheet or a flexible substrate film. The present invention relates to an angle adjusting device for adjusting the angle and a punching machine using the angle adjusting device.

The punching machine has a die placed below the workpiece placement space for positioning the sheet-like workpiece, and a punch head provided with punch pins on the upper side of the workpiece placement space, and an actuator for contacting and separating the punch head from the die. A hole can be formed in the sheet-like workpiece by disposing the punch unit and operating the punch unit under the control of the actuator.
In such a punching machine, when the punch pin has an irregular cross section such as a rectangle or a U shape, the angle adjustment is performed by adjusting the position in the θ direction by rotating the punch pin around its axis in order to set the punch pin in an appropriate direction. A device is provided. As this angle adjusting device, for example, in Patent Document 1, a swing movement member is provided on a punch unit rotatably attached around a punch pin axis, and an engagement portion provided at one end is swung on a punch unit holding base. An apparatus is disclosed in which a T-shaped adjustment member which is engaged with a member and swingable about a pivot parallel to the axis of the punch pin is attached, and a pair of adjustment screws is screwed to the other end of the adjustment member. Yes. That is, the adjustment member is swung by adjusting the screwing amounts of both adjustment screws, whereby the punch unit and the punch pin are rotated about the axis to finely adjust the angle.

JP 2006-15363 A

  In the conventional angle adjusting device, since the angle is adjusted by the screwing amount of the pair of adjusting screws, it is difficult to finely adjust the angle, and sufficient accuracy cannot be obtained. In addition, it is necessary to rotate the adjustment screw alternately, which takes time and effort.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a punch pin angle adjusting device and a punching machine that can perform fine adjustment of the angle of the punch pin with high accuracy with simple labor.

In order to achieve the above object, the invention described in claim 1 is attached to a holding base of a punching machine in which a holding unit is provided with a punch unit provided with a punch pin at a lower portion so as to be rotatable around the axis of the punch pin. An angle adjusting device for adjusting the angle around the axis of the punch pin, wherein the rear end is engaged with the punch unit and supported so as to be swingable in the left-right direction around an axis parallel to the axis of the punch pin. A member, a screw-type pressing tool that directly or indirectly abuts the front end of the swinging member from either the left or right side and presses the front end by a screw feed operation; and the front end of the swinging member directly or indirectly from the other side And a biasing member that presses the front end toward the screw-type pressing tool side, and the punch unit is rotated by swinging the swinging member by screw feeding operation of the screw-type pressing tool. The angle Nchipin is adjustable, the pivot member and is supported by the holding member fixed to the holding base, a front face of the holding member is formed in plan view semicircular pivot center concentric with the swing member On the other hand, the front end of the rocking member is passed through a sliding body having a curved rear surface that matches the front surface of the holding member, and a nut is screwed together. The swinging member can be fixed by guiding the movement and pressing the sliding body against the holding member by tightening the nut .
According to a second aspect of the present invention, in the configuration of the first aspect, the screw-type pressing tool is a micrometer head in which the spindle performs screw feeding operation by rotating the dial, and the biasing member is biased by the elastic body. While a plunger is used, a shaft member is orthogonally connected to the front end of the swing member upward or downward, and a micrometer head and a plunger are arranged on the left and right sides of the shaft member to sandwich the shaft member. The shaft member is caused to follow the screw feeding operation of the spindle by the rotation operation of the dial, and the swing member is swung.
According to a third aspect of the present invention, in the configuration of the second aspect, the punch unit is rotated by 1 ° by a 1 mm screw feeding operation of the spindle of the micrometer head.
In order to achieve the above object, the invention according to claim 4 is a punching machine in which a holding unit is provided with a punch unit having a punch pin at a lower portion thereof so as to be rotatable around the axis of the punch pin. The punch pin angle adjusting device according to any one of claims 1 to 3 is attached to the base, and the rear end of the swing member is engaged with the punch unit.

According to invention of Claim 1 and 4 , adjustment of the angle of a punch pin is attained only by operation of a screw type pressing tool, and angle adjustment can be performed in a short time with simple labor. In addition, since the swinging member always follows the screw feeding operation of the screw-type pressing tool, the occurrence of backlash is suppressed and the accuracy related to the angle adjustment is increased. Furthermore, the swinging member can be swung accurately without rattling, and the locking / unlocking of the swinging member can be facilitated, leading to improvements in angle adjustment accuracy and operability.
According to the second aspect of the invention, in addition to the effect of the first aspect, the angle adjustment amount can be easily visually recognized with the micrometer head, and the adjustment time can be shortened. Further, since the swing member is swung via the shaft member, the pressing force of the micrometer head and the plunger is uniformly transmitted to the swing member.
According to the third aspect of the invention, in addition to the effect of the second aspect, fine adjustment of the punch pin can be performed more accurately.

It is a side view of a punching machine. It is the A section enlarged view of FIG. FIG. 3 is a view taken in the direction of arrow B in FIG. 2. It is a top view of the angle adjustment apparatus except a support member. FIG. 5 is a sectional view taken along line XX in FIG. 4.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing an example of a punching machine. The punching machine 1 has a processing chamber 3 at the top of the machine body 2, and a sheet-like workpiece (on a base 4 provided at the bottom of the processing chamber 3. Hereinafter, a work table 5 on which a holding frame (not shown) for holding the workpiece is held is provided. A well-known flat servo motor (not shown) is provided on the upper surface of the work table 5 so that the work frame can be positioned at an arbitrary position on the work table 5 by moving the holding frame back and forth and left and right.

  In addition, a frame 6 is installed in the left-right direction above the base 4 between the work table 5 and the flat servo motor, and a punch unit 7 for punching the work is installed in the frame 6. As shown in FIGS. 2 and 3, the punch unit 7 has three sets of punch units 7 in the left-right direction (up and down direction in FIG. 3, here the left side in FIGS. 1 and 2) above the work arrangement space on the work table 5. The die unit 8 (FIG. 1) corresponding to each punch unit 7 is provided below the work arrangement space.

  Each punch unit 7 includes an actuator unit 9 and a punch head 10 that holds a punch pin 11 below the actuator unit 9. The actuator portion 9 is suspended by being connected to a piston rod of an air cylinder 13 supported downward via a bracket 12 above the frame 6, and the punch head 10 is fixed to the frame 6 in the horizontal direction. 14 is held by a head holder 15 fixed to the lower portion of 14 so as to be movable up and down and rotatable around the axis of the punch pin 11. Reference numeral 16 denotes a fixing pin that is screwed into the holding base 14 from the front surface to fix the head holder 15.

  The actuator portion 9 has a pair of leg portions 19 and 19 connected to an upper portion of a U-shaped fixing plate 18 fixed to a base 17 connected to a piston rod of the air cylinder 13 via a thin neck portion. . Inside the fixed plate 18, there is provided a movable plate 20 connected to each leg portion 19 through a thin connecting portion, and the movable plate 20 is connected to the fixed plate 18 via a piezoelectric element 21. . On the other hand, the leg portion 19 extends downward through the outside of the fixed plate 18 and connects the rod 24 via the hammer 23 between the end portions of the leaf springs 22 respectively connected to the lower ends thereof. The lower end of the rod 24 is connected to the punch pin 11.

  Therefore, when the piston rod of the air cylinder 13 is extended, the base 17 and the punch head 10 are lowered to the punch position close to the die unit 8. When the piezoelectric element 21 expands and contracts in the vertical direction by energization in this state, the leg portions 19 and 19 open and close, the hammer 23 swings up and down through the leaf springs 22 and 22, and the punch pin 11 is die-attached through the rod 24. The unit 8 can be struck and punched into the workpiece.

  On the other hand, below the front part of the base 17 of each punch unit 7, a linkage block 25 in which a concave groove 26 in the vertical direction is formed on the front surface is detachable with bolts 27. .. Are formed in front of 25, and the angle adjusting device 30 of the punch pin 11 can be selectively attached to each set of the linkage block 25 and the through hole 28. Hereinafter, the angle adjusting device 30 will be described by taking as an example a case where the angle adjusting device 30 is provided for the central punch unit 7.

  In this angle adjusting device 30, first, a hinge base 31 as a holding member is attached to the front surface of the holding base 14 by upper and lower bolts 32, 32 so as to close the central through hole 28. The hinge base 31 is a rectangular plate body that is long in the vertical direction, and a circular convex portion 31a that fits into the through hole 28 protrudes from the rear surface. Further, as shown in FIG. 4, a laterally long through hole 33 having a wide left and right width is formed at the center of the hinge base 31 in the vertical direction, and a shaft as a swinging member that penetrates the through hole 33 forward and backward. A swing arm 34 is pivotally attached to the left and right through a hinge pin 35 in the vertical direction. The rear end 36 of the swing arm 34 has a spherical outer periphery, and penetrates the through hole 28 and is inserted and locked into the concave groove 26 of the linkage block 25. A semicircular guide surface 37 centering on the hinge pin 35 is formed on the central front surface of the hinge base 31 in the vertical direction.

  38 is a slide cylinder as a sliding body in front of the hinge base 31 through which the swing arm 34 penetrates, and the front end of the swing arm 34 is screwed with a nut 39 in front of the slide cylinder 38 as shown in FIG. It becomes the screw part 40 to be. The slide cylinder 38 is a cylinder having a square shape with a long cross section in the front-rear direction, and its rear surface is a curved slide surface 41 that matches the guide surface 37 of the hinge base 31. Further, a vertical support hole 42 perpendicular to the swing arm 34 is formed through the slide cylinder 38, and a chamfer 43 is formed on the upper surface of the swing arm 34 exposed in the support hole 42. . A threaded portion 46 of a shaft member 44 provided with a knob 45 at the upper end and a threaded portion 46 at the lower end is screwed into the chamfered portion 43, and the shaft member 44 that is orthogonally connected to the swing arm 34 has a support hole. 42 protrudes upward through 42.

  Therefore, the swing arm 34 is supported so as to be swingable in the left-right direction around the hinge pin 35 by the slide surface 41 being guided by the guide surface 37 together with the slide cylinder 38 between the hinge base 31 and the nut 39. The By swinging the swing arm 34, the rear end 36 tilts left and right within the concave groove 26 of the linkage block 25 to press the inner surface of the concave groove 26, and the base 17 of the punch unit 7 is inclined via the linkage block 25. I will tell you.

  A support member 47 is connected to the upper surface of the hinge base 31. The support member 47 includes a rear end portion 48 attached to the upper surface of the hinge base 31, two left support portions 49 and a right support portion 50 that are connected to each other on the front side of the rear end portion 48 at a predetermined interval on the left and right sides. And a pair of screw pins that are screwed into the hinge base 31 on the left and right sides of the positioning pin 51. The bolts 52 and 52 are attached to the hinge base 31. In this attached state, the slide cylinder 38 is positioned between the left and right support portions 49 and 50 in a plan view, and the shaft member 44 penetrates between the support portions 49 and 50.

  The left support portion 49 is provided with a micrometer head 53 as a screw type pressing tool. The micrometer head 53 has a well-known configuration in which a spindle 55 provided at the main body 54 is rotated to cause the spindle 56 at the tip to protrude and retract in the axial direction with a screw feed amount corresponding to the rotation amount. The screw feed amount of the spindle 56 per rotation is 0.25 mm. By passing the micrometer head 53 in the left-right direction from the outside of the left support portion 49 and fixing with the nut 57, the dial 55 is positioned outside the left support portion 49, while the spindle 56 is positioned on the left side surface of the shaft member 44. It is made to contact.

  On the other hand, the right support portion 50 is provided with a plunger 58 as an urging member. The plunger 58 has a known configuration in which a pin 60 is projected from the tip by a coil spring (not shown) built in the main body 59, and a screw portion 61 formed at the tip of the main body 59 is screwed into the right support portion 50 from the outside in the left-right direction. The pin 60 is brought into contact with the right side surface of the shaft member 44 opposite to the spindle 56 of the micrometer head 53 by being fixed by the nut 62. That is, the shaft member 44 is sandwiched between the spindle 56 of the micrometer head 53 and the pin 60 of the plunger 58.

  In the punching machine 1 configured as described above, when the angle of the punch pin 11 having an irregular cross section such as a rectangular shape is adjusted, the linkage block 25 is attached to the base 17 of the punch unit 7 to be adjusted as described above. Thus, the hinge base 31 is attached with bolts 32 and 32 at the position of the corresponding through hole 28, and the rear end 36 of the swing arm 34 is locked in the concave groove 26 of the linkage block 25. In this state, the nut 39 is loosened so that the slide cylinder 38 can slide. Here, when the dial 55 of the micrometer head 53 is rotated and the spindle 56 is protruded, the shaft member 44 is pressed to the right side, so that the front end of the swing arm 34 to which the shaft member 44 is connected is slid on the slide cylinder 38. The moving surface 41 swings around the hinge pin 35 while sliding on the guide surface 37 of the hinge base 31.

  Then, the rear end 36 of the swing arm 34 swings to the opposite side and tilts in the concave groove 26 to press the linkage block 25, so that the punch unit 7 rotates in the opposite direction to the swing arm 34 via the linkage block 25. To do. This is the same when the spindle 56 is retracted by rotating the dial 55. The shaft member 44 is pressed against the spindle 56 by the pin 60 of the plunger 58, so that the shaft member 44 follows the retraction of the spindle 56. Is pushed to the left and swings the swing arm 34.

  Thus, as the dial 55 of the micrometer head 53 is operated, the punch pin 11 is rotated around the axis and the angle can be adjusted (position in the θ direction shown in FIG. 3). Here, when the spindle 56 of the micrometer head 53 is moved by 1 mm, the punch unit 7 (punch pin 11) is rotated by 1 ° (that is, rotated by 0.001 ° at 1 μm). Even with such fine adjustment, the adjustment amount can be easily visually recognized by the dial 55 of the micrometer head 53, and the adjustment time can be reduced. Further, since the shaft member 44 is always kept pressed to the spindle 56 side by the pin 60 of the plunger 58, the backlash can be suppressed by following the shaft 56 without rattling as the spindle 56 comes and goes. The angle can be adjusted with high accuracy. When the nut 39 is tightened after the angle adjustment is completed, the slide cylinder 38 is pressed and fixed to the hinge base 31, and the swing arm 34 is also fixed at the position to set the angles of the punch unit 7 and the punch pin 11. .

  When adjusting the angle of the punch pin 11 of another punch unit 7, the bolt 32 of the hinge base 31 is loosened to temporarily remove the angle adjusting device 30 from the holding base 14, and as shown by a two-dot chain line in FIG. The swing base 34 may be inserted into the through hole 28 corresponding to the punch unit 7 for adjusting the angle and engaged with the linkage block 25 to fix the hinge base 31 to the position.

  Thus, according to the angle adjusting device 30 and the punching machine 1 of the above embodiment, the rear end is engaged with the punch unit 7 and supported so as to be swingable in the left-right direction around an axis parallel to the axis of the punch pin 11. The swing arm 34, a micrometer head 53 that indirectly contacts the front end of the swing arm 34 from the left side and presses the front end by a screw feed operation, and the front end of the swing arm 34 that indirectly contacts the front end from the right side. And a plunger 58 that presses the micrometer head 53 toward the micrometer head 53, and by swinging the swing arm 34 by a screw feed operation of the micrometer head 53, the punch unit 7 can be rotated to adjust the angle of the punch pin 11. Yes. Therefore, the angle of the punch pin 11 can be adjusted only by the operation of the micrometer head 53, and the angle can be adjusted in a short time with simple labor. Further, since the swing arm 34 always follows the screw feeding operation of the micrometer head 53, the occurrence of backlash is suppressed, and the accuracy related to the angle adjustment is increased.

  In particular, here, the screw-type pressing tool is a micrometer head 53 in which the spindle 56 is screw-fed by rotating the dial 55, and the biasing member is a plunger 58 biased by an elastic body, while the swing arm The shaft member 44 is connected to the front end of the shaft 34 in an orthogonal shape upward, and the micrometer head 53 and the plunger 58 are respectively disposed on the left and right sides of the shaft member 44 so that the shaft member 44 is sandwiched. Since the shaft member 44 is made to follow the screw feeding operation of the spindle 56 by the rotation operation and the swing arm 34 is swung, the angle adjustment amount can be easily visually recognized by the micrometer head 53 and the adjustment time can be shortened. it can. Further, since the swing arm 34 is swung via the shaft member 44, the pressing force of the spindle 56 and the plunger 58 is uniformly transmitted to the swing arm 34.

Further, since the punch unit 7 is rotated by 1 ° by the 1 mm screw feeding operation of the spindle 56 of the micrometer head 53, the fine adjustment of the punch pin 11 can be performed more accurately.
Further, the swing arm 34 is supported by the hinge base 31 fixed to the holding base 14, and the front surface of the hinge base 31 is formed in a semicircular shape in a plan view concentric with the swing center of the swing arm 34. The front end of the arm 34 is passed through a slide cylinder 38 having a curved rear surface that matches the front surface of the hinge base 31, and a nut 39 is screwed into the swing arm 34 by sliding the slide cylinder 38 relative to the front surface of the hinge base 31. The swing arm 34 can be fixed by pushing the slide cylinder 38 against the hinge base 31 by tightening the nut 39, so that the swing arm 34 can be swung accurately without rattling. At the same time, locking / unlocking is easy, leading to improved accuracy of angle adjustment and operability.

In the above embodiment, the micrometer head is arranged on the left side and the plunger is arranged on the right side. The shaft member is connected to the upper side of the swing arm and the support member connected to the upper side of the hinge base supports the micrometer head and the plunger, but the shaft member is connected to the lower surface of the swing arm and supported downward. The member may be connected to the lower side of the hinge base and held between the micrometer head and the plunger.
Furthermore, the screw-type pressing tool is not limited to a micrometer head, and a bolt may be screwed so that the tip abuts against the shaft member. In this case, it is desirable to prevent loosening with a coil spring or the like. The biasing member can be changed such as directly using an elastic body such as a coil spring in addition to the plunger.

On the other hand, in the above embodiment, the shaft member is connected to the swing arm and sandwiched between the micrometer head and the plunger, and the swing arm is indirectly swung, but the shaft member is eliminated and the screw type pressing tool is attached. The rocking member may be directly held between the rocking member and rocked.
In addition, the structure of the sliding body is not limited to the above form. For example, when the slide cylinder having a flat rear surface that is not a curved surface is screwed into the screw portion formed on the swing member and the slide cylinder is loosened, the rear surface is The sliding member is slid on the guide surface of the holding member to guide the swinging of the swinging member, while the slide tube is screwed to the holding member side so that the holding member is pressed to fix the swinging member. The design can be changed.

Furthermore, in the above embodiment, the angle of each punch pin is adjusted with respect to a plurality of punch units by changing one angle adjusting device to the holding base. Each may be provided to adjust the angle of the punch pin.
In addition, in the punching machine, the number of punch units, the direction in which the punch units are arranged, the structure of the punch units themselves, etc. are not limited to those described above, and can be changed as appropriate. -A Y stage (two-axis actuator using a ball screw and a servo motor) may be used.

  1 .... Punching machine 2 .... Airframe 3 .... Processing room 4 .... Base 5 ... Work table 6 ... Frame 7 ... Punch unit 9 ... Actuator 10 ... Punch head , 11 Punch pin, 13 Air cylinder, 14 Holding base, 17 Base, 22 Spring spring, 25 Hammer, 25 Link block, 26 Groove, 28 Hole, 30 ... angle adjusting device, 31 ... hinge base, 33 ... through hole, 34 ... swing arm, 35 ... hinge pin, 36 ... rear end, 37 ... guide surface, 38 ... slide cylinder, 39 ... Nut 41 ... Sliding surface 42 ... Support hole 44 ... Shaft member 47 ... Support member 48 ... Rear end 49 ... Left support 50 ... Right support 53..Micrometer head, 54..Main body, 55 Dial, 56 ... spindle, 58 ... plunger, 59 ... main body, 60 ... pin.

Claims (4)

Angle adjustment for adjusting the angle around the axis of the punch pin by attaching a punch unit having a punch pin to the holding base to the holding base of a punching machine that holds the punch unit rotatably around the axis of the punch pin A device,
A swinging member that is engaged with a rear end of the punch unit and is supported so as to be swingable in the left-right direction around an axis parallel to the axis of the punch pin;
A screw-type pressing tool that directly or indirectly contacts the front end of the rocking member from either the left or right side and presses the front end by a screw feed operation;
An urging member that directly or indirectly contacts the front end of the swing member from the other side and presses the front end toward the screw-type pressing tool,
By swinging the swinging member by screw feeding operation of the screw-type pressing tool, the punch unit can be rotated to adjust the angle of the punch pin ,
The rocking member is supported by a holding member fixed to the holding base, and the front surface of the holding member is formed in a semicircular shape in plan view concentric with the rocking center of the rocking member. The front end of the moving member is passed through a sliding body having a curved rear surface that matches the front surface of the holding member, a nut is screwed, and the sliding member slides with respect to the front surface of the holding member. A punch pin angle adjusting device characterized in that the swinging member can be fixed by guiding the swinging and pressing the sliding body against the holding member by tightening the nut .   The screw-type pressing tool is a micrometer head in which a spindle is screw-operated by rotating a dial, and the biasing member is a plunger biased by an elastic body, while the front end of the swinging member is The shaft member is connected orthogonally upward or downward, the micrometer head and the plunger are respectively arranged on the left and right sides of the shaft member to sandwich the shaft member, and the spindle is rotated by the dial. 2. The punch pin angle adjusting device according to claim 1, wherein the shaft member is caused to follow the screw feeding operation to swing the swinging member. 3.   3. The punch pin angle adjusting device according to claim 2, wherein the punch unit is rotated by 1 [deg.] By a 1 mm screw feeding operation of the spindle of the micrometer head. A punching machine comprising a holding base and a punch unit having a punch pin at a lower portion thereof, rotatably held around the axis of the punch pin,
A punching machine, wherein the holding base is mounted with the punch pin angle adjusting device according to any one of claims 1 to 3 , and a rear end of the swing member is engaged with the punch unit.

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