JP2006341296A - Device for cutting microjoint - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting device of a microjoint with which the direction of burrs generated by cutting the microjoint and the direction of burrs generated by punching with a turret punch press or the like are made so as to be the same direction, deffective cutting caused by the rotation of a product and the rotation of the product after cutting in the horizontal direction by pressing force for positioning the product when cutting the final microjoint part are prevented. <P>SOLUTION: In this cutting device of the microjoint, by providing a lower edge 59 which can be inserted into the underside of the product in the microjoint part, a first upper edge 61 and a second upper edge 63 for cutting the microjoint part in the corner part of the product on the side of the outer periphery of the product and providing a rotation preventing member 62 providing the same contact surface as a contact surface which is provided in the shaft part of the lower edge and brought into contact with the side edge of the product separately in the vicinity on the side of the first upper edge, the product is not rotated in the horizontal direction when cutting the last microjoint part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a micro joint cutting apparatus.

  For example, when one or a plurality of products having various contours are cut from a sheet metal material by a punch press or a turret punch press, grooves are formed along the outer periphery of the product by overtaking or nibbling. In the case of a rectangular product, the fine joints that connect the sheet metal material and the product to the four corners of the product (in the sheet metal processing industry, the four corner joints are micro joints, and the fine joints provided on the outer periphery of the product other than the four corners) The joint is called a wire joint), and the semi-finished product is processed by cutting the joint part and separating each product.

As an example of the above-described micro joint cutting device for cutting the joint portion, a vertically movable frame is provided on a movable positioning frame that can be moved and positioned in the X and Y axis directions. The micro joint cutting tool in the micro joint cutting apparatus is provided so as to be movable and positionable in the Y-axis direction, and the micro joint cutting tool in the micro joint cutting device can enter the lower side of the micro joint portion from the groove formed around the product. A blade and an upper blade that is movable up and down to cooperate with the lower blade to cut the micro joint portion, and the lift frame is an actuator such as a fluid pressure cylinder for lowering the upper blade The thing of the structure provided with is known (for example, refer patent document 1, 2).
JP 2005-095927 A JP 2004-306207 A

  In the micro joint cutting apparatus described in Patent Documents 1 and 2, the micro blade is positioned on the lower surface of the sheet metal material side or the remaining material (also referred to as skeleton) and the punch is positioned above the product side. Since it is configured to cut the joint part or wire joint part, the burrs generated in the product will be upward, opposite to the direction of burrs generated by punching with a punch press or turret punch press. There is a problem that the deburring process is a double-sided work as well as a single-sided process.

  Also, in the cutting process of multiple micro joint parts or wire joint parts, the cut product rotates horizontally due to the pressing force at the time of positioning of the micro joint cutting device during the final cutting process, resulting in poor cutting. There is a problem that the product rotates horizontally after cutting, and the subsequent product accumulation process is supported.

  In addition, the product after cutting gets on the remaining material (skeleton) and does not fall on the product accumulation pallet, or the groove of the product to be cut next is blocked and the micro joint part of the next product is cut. There are problems such as being unable to.

  The present invention has been made to solve the above-described problems, and the problem of the present invention is that the direction of burrs generated in products during microjoin cutting is generated by punching with a punch press or turret punch press. The direction of the burr is the same as the direction of the burrs, and the cut product rotates horizontally due to the pressing force at the time of positioning in the final micro-joint cutting process, resulting in poor cutting or cutting. It is to provide a microjoint cutting device in which the product does not turn horizontally later.

  As a means for solving the above-mentioned problem, the micro joint cutting device according to claim 1 is a semi-finished product processed into a state in which a sheet metal material and a product are connected and supported by a plurality of fine joint portions and held on a holding table. A micro-joint cutting device that cuts the plurality of fine joint portions to separate the sheet metal material and the product from the groove formed between the sheet metal material and the periphery of the product. A lower blade that can enter the lower side of the product in the micro joint portion, and a vertically movable body that cooperates with the lower blade to cut the micro joint portion that connects the straight edge portion of the product and the sheet metal material. And a second upper blade that can be moved up and down to cut a micro joint portion that connects a corner portion of the product and the sheet metal material, and is formed around the product. Provided on the groove side, a plate pressing member capable of pressing and holding the product on the lower blade inserted into the lower surface of the product, and provided with the micro joint cutting device so as to be capable of rotational positioning, and on the shaft portion of the lower blade An anti-rotation member having a contact surface that is the same as the contact surface that contacts the side edge of the product is provided in the vicinity of the first upper blade side, and at the time of the last cutting of the plurality of micro joint portions The main point is to prevent the product from rotating in the horizontal direction.

  The micro joint cutting device according to claim 2, wherein the plurality of fine joint portions are processed from a semi-finished product that is processed and held on a holding table by connecting and supporting a sheet metal material and a product by a plurality of fine joint portions. In the micro-joint cutting device that separates the sheet metal material and the product by cutting the plate, a plate pressing device that presses and holds the product on the holding table from above is provided so as to be movable up and down. The gist of the invention is that it can be moved gently in the direction.

  The micro joint cutting device according to claim 3 is the micro joint cutting device according to claim 2, wherein the plate pressing device includes a Y axis moving body having a plate pressing member on a lower surface, and an upper portion of the Y axis moving body. And a pair of Y-axis guide rails integrally fixed to the Y-axis mobile body, and a pair of X-axis guide rails fixed integrally to the X-axis mobile body. The Y-axis moving body is provided via a Y-axis guide rail holding body that is movably engaged with a pair of X-axis guide rails of the X-axis moving body and movably engages with the Y-axis guide rail. The X-axis moving body is engaged and held so as to be movable in the X-axis and Y-axis directions, and the X-axis moving body is pressed and urged from both sides in the X-axis direction to move the X-axis. Symmetrical Y-axis that holds the body at a fixed position in the X-axis direction A pair of X-direction pressing and biasing means is provided, and the Y-axis moving body is pressed and biased from both sides in the Y-axis direction to the Y-axis moving body to hold the Y-axis moving body at a fixed position in the Y-axis direction. The gist of the present invention is to provide a pair of Y-direction pressing and biasing means symmetrical to the X axis.

  According to a fourth aspect of the present invention, there is provided the micro joint cutting device according to the third aspect, wherein the pair of symmetrical X-direction pressing urging means is applied to the left and right side surfaces of the Y-axis guide rail holder. A pair of locking plates that can be contacted are provided, and one end of a rod member that extends substantially in the middle of the pair of X-axis guide rails is integrally fixed to the pair of locking plates. The other end is provided so as to penetrate the end of the X-axis moving body, the other end of the rod member is provided so as to be movable away from the X-axis moving body, and the other end of the rod member is provided on the other end. A locking member that restricts the movement of the X-axis moving body in the direction is provided, and a spring that presses and urges the pair of left and right locking plates in the left-right side surface direction of the X-axis moving body. A pair of X-axis guide rails between the X-axis moving body The pair of Y-direction pressing and urging means that are inserted and mounted on the Y-axis are moved in the Y-axis direction to the Y-axis guide rail holding body by moving the pair of Y-axis guide rails provided on the Y-axis moving body. A rod that is provided so as to be engaged with each other and that is provided with a pair of locking plates that can come into contact with the side surface of the X-axis moving body, and that extends substantially parallel to the pair of locking plates in the middle of the pair of Y-axis guide rails. One end of the member is fixed integrally, and the other end of the rod member is provided to penetrate the end of the Y-axis moving body, and the other end of the rod member is separated from the Y-axis moving body. A locking member that restricts movement of the rod member in the direction of the X-axis moving body is provided at the other end of the rod member, and the pair of left and right locking plates are connected to the X-axis moving body. A spring that presses and urges in the lateral direction is provided between the locking plate and the X-axis moving body. To the X-axis guide rails be inserted bullets instrumentation is intended to be subject matter.

  According to the present invention, in the microjoint cutting apparatus, the lower blade that can enter the lower side of the product in the microjoint portion from the groove formed between the sheet metal material and the periphery of the product, and in cooperation with the lower blade Rotation prevention provided with an upper blade capable of moving up and down to cut a micro joint portion connecting the straight edge portion of the product and the sheet metal material, and having the same contact surface as the contact surface contacting the side edge of the product Since the member is provided in the vicinity of the upper blade, it is possible to prevent the product from rotating in the horizontal direction at the time of the last cutting of the micro joint part, and at the time of occurrence of defective products or product accumulation Trouble is reduced.

  In addition, a plate pressing device that presses and clamps the sheet metal material on the holding table from above when the micro joint is cut is provided to be movable up and down, and an action of a spring provided on the X axis moving body and the Y axis moving body in the plate pressing device. Thus, since it is provided so as to be able to move slowly in the X and Y axis directions, no relative movement occurs between the Y axis moving body having the plate pressing member on the lower surface and the sheet metal material. In other words, the pressed product is not moved in the horizontal direction by releasing the plate pressing device.

  Further, it is possible to prevent the sheet metal material from moving in the horizontal direction due to the pressing force at the time of positioning to the cutting portion of the micro joint cutting device, and the occurrence of defective products and troubles during product integration are reduced.

  In addition, since the microjoint is cut by the lower blade that can enter the lower side of the product and the upper blade provided on the outer peripheral side of the product, the direction of burr generation when punching and when cutting the microjoint is downward. Thus, the deburring work in the post process is a single-sided work, and the deburring process becomes easy. Therefore, the line system including the deburring process has an advantage that it can be easily incorporated into the line.

  Embodiments of the present invention will be described below with reference to the drawings.

  Referring to FIGS. 1 to 5, a micro joint cutting apparatus 1 according to an embodiment of the present invention, for example, uses one or a plurality of products P having various contours from a sheet metal material W in a known turret punch press. In the case of cutting, a plurality of grooves S are formed along the outer periphery of the product P by overtaking or nibbling, and in the case of the product P having a rectangular outer shape, the sheet metal material W and the product P are formed at the four corners of the product P. The micro joint part MJ is cut and the products P are separated from a semi-finished product that has been processed in a state where a fine joint part that connects the two and so-called micro joint part MJ is left.

  In the sheet metal processing industry, the joints at the four corners are called micro joints, and the fine joints provided on the outer periphery of the product other than the four corners are called wire joints. It is described as meaning both.

  The above-described micro joint cutting process is performed by an X and Y positioning device (not shown) provided with a moving positioning frame 3 above a holding table (not shown) such as a brush table capable of holding the product without causing scratches. ) Is provided. In addition, since the structure of the X, Y positioning device provided with the above-mentioned positioning frame 3 is generally known, detailed description of the X, Y positioning device is omitted.

  As shown well in FIGS. 4 and 5, the movable positioning frame 3 is provided with a vertical guide member 5, and the guide member 5 has a vertical guide 9 provided in the lifting frame 7. Are engaged so as to be movable up and down. The elevating frame 7 is moved up and down by an elevating actuator 11 such as an air cylinder provided in the movable positioning frame 3.

  The elevating frame 7 is provided with a guide member 13 in the X1 axis direction (parallel to the X axis) horizontally, and an X1 axis guide 17 provided on the X1 axis moving frame 15 is movably engaged with the guide member 13. Yes.

  As shown in FIG. 4, the X1-axis moving frame 15 is substantially L-shaped in plan view, and a guide member 19 in the Y1-axis direction (parallel to the Y-axis) is horizontally disposed on the X1-axis moving frame 15. Is provided. The guide member 19 in the Y1 axis direction is provided at substantially the same level as the guide member 13 in the X1 axis direction. A Y1 axis guide 23 provided on the Y1 axis moving frame 21 is movably engaged with the guide member 19.

  As shown in FIG. 5, the movement of the X1 axis moving frame 15 in the X1 axis direction is performed by the operation of an X1 axis actuator 25 such as an air cylinder attached to the elevating frame 7. More specifically, a plate-like moving member for moving the X1-axis moving frame 15 in the X1-axis direction is provided at the tip of an operating rod 27 such as a piston rod provided in the X1-axis actuator 25 so as to be reciprocally movable. 29 is attached integrally. An escape mechanism 31 is provided between the moving member 29 and the X1-axis moving frame 15 to allow minute movement of the moving member 29 in the X1-axis direction from the neutral position.

  In the escape mechanism 31 described above, the X1-axis moving frame 15 is provided with a floating cylinder 33 as a pair of urging means facing each other with the moving member 29 therebetween. The piston rod 35 of the floating cylinder 33 is always in contact with both surfaces of the moving member 29 at the projecting stroke end. Therefore, the moving member 29 can be positioned at a neutral position between both the floating cylinders 33 facing each other.

  In the escape mechanism 31 configured as described above, in a state where both the floating cylinders 33 are operated to project the piston rod 35 and the moving member 29 is sandwiched, the X1-axis moving frame 15 is integrated with the moving member 29. Will move. Further, by holding the fluid in the floating cylinders 33 in the drain state, the X1-axis moving frame 15 can move in the X1-axis direction by a minute distance relative to the moving member 29, that is, X1. Escape operation in the axial direction is possible.

  The Y1-axis moving frame 21 is moved in the Y1-axis direction by the operation of a Y1-axis actuator 37 such as an air cylinder mounted on the X1-axis moving frame 15. That is, the Y1-axis actuator 37 has the same configuration as the X1-axis actuator 25, and the movement of the Y1-axis actuator 37 is reciprocally movable in the Y1-axis direction. A moving member 41 similar to the member 29 is integrally attached.

  On both sides of the moving member 41 in the Y1-axis direction, the tip portions of the respective piston rods 35 provided in the floating cylinder 33 attached to the Y1-axis moving frame 21 are in contact. That is, an escape mechanism 43 similar to the escape mechanism 31 is provided between the moving member 41 and the Y1-axis moving frame 21.

The Y1-axis moving frame 21 supports a cutting device 45 having a cutting tool, which will be described in detail later, for cutting the micro joint portion MJ connecting the sheet metal material W and the product P, and is rotatably supported. As shown in FIG. 1, a cutting tool support main body 51 is pivotable horizontally through a bearing 49 on the Y1-axis moving frame 21 as shown in FIG. A toothed belt 57 is wound around a pulley 53 provided on the upper portion of the cutting tool support main body 51 and a pulley 55 provided on the servo motor 47. Therefore, the cutting tool support body 51 can be indexed to a desired rotation position by appropriately rotating the servo motor 47.

  A lower blade body CB provided at the lower portion of the cutting tool support body 51 is provided with a lower blade 59 that can enter the lower side of the product P in the micro joint portion MJ as a tool for cutting the micro joint portion MJ. Are provided so as to protrude downward, and the first upper blade 61 and the second upper blade 63 (FIGS. 12 and 16 to FIG. 16 to cut the micro joint portion MJ in cooperation with the lower blade 59). 18) can be moved up and down.

  As shown in FIGS. 12, 13, 17, and 18, a shaft portion 59 </ b> J having a contact surface 59 </ b> T made of, for example, a flat surface that contacts the side edge 60 of the product P below the lower blade body CB. And a cutting blade portion 59S provided with a straight blade 59K protruding leftward from the shaft portion 59J (in FIG. 17) is formed below the shaft portion 59J.

  The cutting blade surface of the straight blade 59K and the contact surface 59T are on the same plane. The cutting blade portion 59S provided with the straight blade 59K and the first upper blade 61 cooperate to cut a fine micro joint MJ (or wire joint) portion provided on the outer periphery of the product P.

  An inclined blade portion 59C having an inclined blade 59M having an angle of 45 degrees protruding from the shaft portion 59J to the right (in FIG. 17) is formed below the shaft portion 59J of the lower blade 59. The inclined blade portion 59C and the second upper blade 63 having the same inclination cooperate to cut the micro joint MJ portion at the corner of the product P. In this case, the corner portion of the product P is chamfered by 45 degrees.

   As shown in FIGS. 11 to 15, the first upper blade 61 and the second upper blade 63 are provided with a first lifting rod 65 </ b> A and a second lifting / lowering supported by the cutting tool support body 51 so as to be movable up and down. Between the punch heads 67A and 67B provided at the upper ends of the first and second elevating rods 65A and 65B and the cutting tool support main body 51. Lift springs 69A and 69B for raising and returning the first and second lifting rods 65A and 65B to their original raised positions are respectively mounted.

  As shown well in FIG. 14, the punch heads 67A and 67B are partly close to each other, and in this close part, the punch heads 67A and 67B are pressed and lowered by both the punch heads 67A and 67B. A plate pressing member 71 is supported on the cutting tool support body 51 so as to be movable up and down. At the lower end of the plate pressing member 71, the upper surface of the sheet metal material W is placed on the lower blade 59 when the microjoint cutting process is performed by the lower blade 59 and the first upper blade 61 or the second upper blade 63. For example, a contact portion 73 made of a flat surface is formed.

  A flange portion 75 is provided on the upper side of the plate pressing member 71 described above. Between the flange portion 75 and the cutting tool support body 51, the plate pressing member 71 is returned to its original raised position. A lift spring 77 is elastically mounted, and a second spring 79 stronger than the lift spring 77 is loaded between the flange portion 75 and both the punch heads 67A and 67B. It should be noted that a slight gap is provided between the second spring 79 and both the punch heads 67A and 67B, and the mounting load is zero.

  As shown well in FIGS. 11, 12, and 16, on the left side of the lower blade 59 protruding to the lower part of the cutting tool support body 51, at the time of the last cutting of a plurality of micro joint portions. An anti-rotation member 62 for preventing the product from rotating in the horizontal direction due to the pressing force at the time of positioning of the micro joint cutting device is attached by a bolt 64.

  The cutting tool support body 51 is composed of two support blocks 51A and 51B as shown in FIG.

  The rotation preventing member 62 is formed with a contact surface 62T in which the shaft portion 59J of the lower blade 59 is flush with the contact surface 59T that contacts the side edge 60 of the product P. That is, the contact surface 62T is provided so as to contact the side edge 60 of the product P simultaneously with the contact surface 59T of the shaft portion 59J of the lower blade 59.

  As shown in FIGS. 1 and 6 to 8, the lifting frame 7 on the right side of the cutting tool support main body 51 is provided with a lifting cylinder 66 such as a pneumatic cylinder. A plate pressing device 70 for pressing and holding the product on the holding table (not shown) from above is attached to the lower end portion of the piston rod 68 that extends from the elevating cylinder 66 so as to expand and contract downward.

  The plate pressing device 70 described above includes a Y-axis moving body 74 having a plate pressing member 72 made of an elastic member such as relatively hard rubber on the lower surface, and an X-axis moving body provided on the Y-axis moving body 74. 76, a pair of Y-axis guide rails 78 are integrally fixed to the Y-axis moving body 74, and a pair of X-axis guide rails 80 are integrally fixed to the X-axis moving body 76. The Y-axis guide rail holding body 88 is movably engaged with the pair of X-axis guide rails 80 of the X-axis moving body 76 and movably engaged with the Y-axis guide rail 78. A Y-axis moving body 74 is engaged with and held by the X-axis moving body 76 so as to be movable in the X-axis and Y-axis directions.

  The X-axis moving body 76 is a pair of Y-axis symmetric members that press and urge the Y-axis moving body 74 from both sides in the X-axis direction to hold the X-axis moving body 76 at a fixed position in the X-axis direction. X-direction pressing and urging means 82 is provided, and the Y-axis moving body 74 is pressed and urged from both sides in the Y-axis direction to cause the Y-axis moving body 74 to move in the Y-axis direction. A pair of Y-direction pressing and urging means 84 symmetrical to the X-axis to be held at a fixed position is provided.

  The X-direction pressing and urging means 82 is provided with a pair of locking plates 86X that can come into contact with the left and right (in FIG. 6) side surfaces of the Y-axis guide rail holding body 88, and the pair of locking plates 86X has the pair of locking plates 86X. One end of a rod member 90 extending substantially in the middle of the X-axis guide rail 80 is fixed integrally, and the other end of the rod member 90 is provided so as to penetrate the end of the X-axis moving body 76. The other end of the rod member 90 is movably provided in a direction away from the X-axis moving body 76, and the other end of the rod member 90 is restricted from moving in the direction of the X-axis moving body 76. A locking member 92 is provided, and a spring 99 that presses and urges the pair of left and right locking plates 86 </ b> Y toward the left and right side surfaces of the X-axis moving body 76 is formed between the locking plate 86 </ b> X and the X-axis moving body 76. A bullet inserted into a pair of X-axis guide rails 80 between One in which you composed.

  The Y-direction pressing and biasing means 84 is provided by engaging a pair of Y-axis guide rails 78 provided on the Y-axis moving body 74 with the Y-axis guide rail holding body 88 so as to be movable in the Y-axis direction. A pair of locking plates 86Y that can come into contact with the side surfaces of the shaft moving body 76 are provided, and one end portion of a rod member 94 that extends substantially in the middle of the pair of Y-axis guide rails 78 on the pair of locking plates 86Y. The rod member 94 is fixed integrally, and the other end portion of the rod member 94 is provided so as to penetrate the end portion of the Y-axis moving body 74, and the other end portion of the rod member 94 is separated from the Y-axis moving body 74. A locking member 96 that restricts movement of the rod member 94 in the direction of the X-axis moving body 76 is provided at the other end of the rod member 94, and the pair of left and right locking plates 86Y are connected to the X-axis. Spring 9 that presses and urges the moving body 76 in the left and right side directions The is made by inserting bullet instrumentation into a pair of X-axis guide rails 78 between the locking plate 86Y and the X-axis moving body 76.

  By the plate holding device 70 having the above-described configuration, the micro joint cutting device is moved to the upper position of the micro joint portion by the X and Y positioning devices (not shown) provided with the moving positioning frame 3 at the time of micro joint cutting processing described in detail later. Then, the lifting cylinder 66 is moved downward to place the cutting tool of the cutting device 45 in contact with the micro joint portion of the sheet metal material W in a state where the plate pressing device 70 presses the surface of the sheet metal material W. At this time, for example, when the micro-joint cutting device is moved in a 45 degree direction and positioned at the micro joint portion, the plate pressing device 70 is in an X and Y positioning device (not shown) while pressing the sheet metal material W. ) Springs 98 provided on the X-axis moving body 76 and the Y-axis moving body 74 in a direction opposite to the positioning direction of By the action of 9, it is possible to gradually move, does not occur relative movement between said plate presser member 72 with the lower surface Y-axis moving member 74 and the sheet metal material W.

  Without the springs 98 and 99, the pressed product moves by the amount that the X and Y positioning devices have moved, and the final cutting position is inclined. As described above, the plate pressing device 70 is moved by the springs 98 and 99. By letting go, the pressed product will not move. That is, the sheet metal material W is not moved in the horizontal direction by the sheet pressing member 72.

  Moreover, it can prevent that a product rotates horizontally by the pressing force at the time of positioning of a micro joint cutting device after the cutting of the last micro joint part. If the plate pressing device 70 is raised, the position of the Y-axis moving body 74 returns to the initial neutral position.

  FIG. 9 and FIG. 10 are simplified illustrations of the above-described explanatory diagram “FIG. 7” of the plate pressing device 70. In this simplified view, the plate pressing device 70 is moved in the Y direction and returned to the initial state. 9A and 9B, the Y-axis moving body 74 is not applied with a force in the Y direction, and the X-axis moving body 76 is positioned at the neutral position by the pair of left and right locking plates 86Y. is there. FIG. 10 shows a state in which the Y-axis moving body 74 is pressed to the left. At this time, the right-side spring 98 is compressed, but the left-side spring 98 remains attached. 74 and move to the left. Thereafter, when the force pressing the Y-axis moving body 74 to the left is lost, the right spring 98 returns to the initial neutral position. Even if the force in the opposite direction acts on the Y-axis moving body 74, the operation in the opposite direction is performed. When the force from the left and right directions does not act on the Y-axis moving body 74, the neutral set by the pair of left and right locking plates 86Y. It will return to the exact position.

  With the above configuration, when one punch head 67A (or 67B) is appropriately lowered to perform micro joint cutting, the second spring 79 is pressed by the punch head 67A (or 67B), and the lift spring 77 is attached. The plate pressing member 71 and the lifting rod 65A (or 65B) are lowered simultaneously against the force.

  When the plate pressing portion 73 at the lower end portion of the plate pressing member 71 contacts the upper surface of the sheet metal material W and the lowering stops, the punch head 67A (or 67B) is moved to the upper end against the urging force of the second spring 79. The first upper blade 61 (or second upper blade 63) at the lower end of the lifting rod 65A (or 65B) provided in the portion cuts the micro joint portion MJ in cooperation with the lower blade 59.

  In order to press down the punch head 67A (or 67B), an actuator 81 (see FIGS. 1 and 2) such as a fluid pressure cylinder is provided above the punch head 67A (67B). The actuator 81 is mounted on an overhang 83 provided by bending the elevating frame 7. The actuator 81 has a punch head at a position below a press operating rod 85 such as a vertically movable piston rod. 67A (or 67B) is provided for indexing and positioning.

  For the indexing positioning of the punch heads 67A and 67B to the lower position of the pressing operating rod 85, the servo motor 47 rotates the tool support main body 51 and moves the X1-axis actuator 25 and the Y1-axis actuator 37. It can be performed by appropriately moving in the X1 axis direction and the Y1 axis direction and appropriately moving the X1 axis moving frame 15 and the Y1 axis moving frame 21 in the X1 axis direction and the Y1 axis direction.

  Further, when the punch 81A (or 67B) is pressed and lowered by the actuator 81, a rising prevention means 87 is provided for preventing the actuator 81 from relatively rising by the reaction force.

  More specifically, as shown in FIG. 1, the actuator 81 is provided with a horizontal bracket 89, and the Y1-axis moving frame 21 has a support bracket 91 whose tip is positioned above the bracket 89. Are standing up together. An upper surface pressing member 95 having a contact member 93 such as a ball that is relatively movable in contact with the upper surface of the bracket 89 is provided at the tip of the support bracket 91.

  Therefore, when the upper surface of the bracket 89 is pressed by the upper surface pressing member 95 and the upward movement is restricted, the pressing head 85A presses the punch head 67A (67B) downward. The reaction force is received by the protruding portion 83 and the upper surface pressing member 95. The downward force acting on the tool support body 51 when the punch head 67A (67B) is pushed down is caused by the Y1-axis moving frame 21, the X1-axis moving frame 15, the lifting frame 7 and the support bracket 91. Will receive.

  That is, when cutting the micro joint portion, the acting force and the reaction force when the actuator 81 is operated and the punch head 67A (or 67B) is pressed down are received in the structure of the closed environment. Therefore, it is not necessary to increase the overall configuration more than necessary, and the overall configuration can be reduced in size and weight.

  In the configuration as described above, as shown in FIG. 17, for example, when the groove S is machined along the outer shape of the product P by a turret punch press (not shown), the sheet metal material W and the product P are connected to each other. Making a semi-finished product that leaves the joint MJ (including the wire joint) and the micro-joint MJ in which the corner and the sheet metal material W are connected to the corner of the product P. is there. Therefore, in order to obtain the product P from such a semi-finished product, it is necessary to cut the micro joint portion MJ.

  As shown in FIG. 17, the micro joint portion MJ1 located in the middle of the groove S1 (usually a rectangular linear shape, but in the case of a trapezoid in which the sheet metal material W side is slightly widened in order to increase the product support strength. Positioning and cutting when cutting are also performed as follows.

  For example, in the example of the substantially square product P shown in FIG. 18, the product P and the sheet metal material W include four micro joint portions MJ2, MJ4, MJ6 and MJ8 at four corners, and four grooves S1, S2, and so on. The micro joint portions MJ1, MJ3, MJ5, and MJ7, which are located approximately in the middle between S3 and S4, are joined by a total of eight micro joint portions MJ. For example, for the micro joint portion MJ1, The cutting device 45 is rotated and indexed to 0 degrees so that the punch head 67A integrated with the first upper blade 61 is positioned below the pressing operating rod 85, and positioning is performed. With respect to the sheet metal material W (not shown), the moving positioning frame 3 is moved and positioned by an X, Y positioning device (not shown), and the micro joint portion The positioning of the cutting device 45 relative to the existing groove S1 of J1.

  Next, the lifting / lowering actuator 11 is operated to lower the lifting / lowering frame 7, and the lower blade 59 protruding from the lower part of the cutting tool support body 51 in the cutting device 45 is inserted into the groove S <b> 1. Then, the X1-axis actuator 25 is actuated to slightly move the X1-axis moving frame 15 in the X1-axis direction, and the cutting blade portion 59S having the linear blade 59K in the lower blade 59 contacts the lower surface of the product P. The contact surface 59T of the shaft portion 59J below the lower blade 59 is positioned so as to contact the side edge 60 of the product P, and then the Y1 axis actuator 37 is operated to move the Y1 axis. The frame 21 is moved slightly in the Y1 axis direction so that the side surface of the shaft portion 59J of the lower blade 59 on the cutting blade portion 59S side is brought into contact with the micro joint portion MJ1.

  When the lower blade 59 is positioned with respect to the micro joint portion MJ1 described above, the fluid pressure in the floating cylinder 33 in the relief mechanisms 31 and 43 is maintained at a low pressure, and the internal fluid is allowed to flow out through the throttle valve or the like. Since the Y1-axis actuator 37 and the X1-axis actuator 25 are operated, the contact surface 59T of the lower blade 59 and the side edge 60 of the product P are contacted with a weak force, and similarly the cutting blade portion Similarly, the contact between the side surface on the 59S side and the micro joint portion MJ1 is also made with a weak force.

  After positioning the lower blade 59 with respect to the micro joint portion MJ1, the actuator 81 is operated and the punch head 67A is pressed by the pressing operation rod 85, whereby the lower blade 59 and the first upper blade 61 cooperate. The micro joint part MJ1 is cut. At this time, since the micro joint portion MJ1 is cut by the first upper blade 61 located outside the product P and the lower blade 59 located below the product P, the direction of the burr generated in the product is the product. This occurs in the same direction as the direction of burrs generated by punching with a normal turret punch press or punch press. There is no need to perform a removal process. Therefore, the line system including the deburring process has an advantage that it can be easily incorporated into the line.

  18 shows a state in which the cutting tool support main body 51 is rotated 90 degrees counterclockwise from the cutting position of the micro joint portion MJ1 by the servo motor 47. Similarly, the micro joint portion MJ3 shown in FIG. MJ5 and micro joint part MJ7 show the states rotated by 180 degrees and 270 degrees, respectively.

  Further, in FIG. 18, cutting of the four corners of the micro joints MJ2, MJ4, MJ6 and MJ8 is performed by, for example, operating the lifting actuator 11 to lower the lifting frame 7 for the micro joint MJ2. The lower blade 59 protruding below the cutting tool support main body 51 in the cutting device 45 is inserted into the groove S1, and then the Y1-axis actuator 37 is operated to move the Y1-axis moving frame 21 in the Y1-axis direction. The X1 axis moving frame 15 is slightly moved in the X1 axis direction by moving the X1 axis actuator 25 by operating the X1 axis actuator 25 while moving the inclined blade portion 59C of the lower blade 59 into contact with the lower surface of the product P. And the contact surface 59T of the shaft portion 59J below the lower blade 59 is positioned so as to contact the side edge 60 of the product P. Rutotomoni, to position the cutting edge portion 59C side of the side surface of the shaft portion 59J of the lower knife 59 so as to abut against the right side surface of the groove S1.

  After positioning the lower blade 59 with respect to the micro joint portion MJ2, the actuator 81 is operated and the punch head 67B is pressed by the pressing operation rod 85, whereby the lower blade 59 and the second upper blade 63 cooperate. The micro joint part MJ2 is cut. The corner of the product P is chamfered 45 degrees by cutting the micro joint MJ2.

  Note that the cutting with respect to the micro joint portion MJ4 shows a state in which the cutting tool support body 51 is rotated 90 degrees counterclockwise from the cutting position of the micro joint portion MJ2 by the servo motor 47. The joint part MJ6 and the micro joint part MJ8 can be positioned and cut by rotating 180 degrees and 270 degrees, respectively.

Front explanatory drawing of the micro joint cutting device concerning the present invention. The right view which abbreviate | omitted a part of micro joint cutting device concerning the present invention. The left view of the micro joint cutting device concerning the present invention. Plane explanatory drawing which omitted a part of micro joint cutting device concerning the present invention. Explanatory drawing of the relief mechanism of the X1-axis direction and the Y1-axis direction in the AA cross section in FIG. Explanatory drawing of the board pressing apparatus 70 which presses and clamps the product on a holding table (illustration omitted) from upper direction in the JJ cross section in FIG. Explanatory drawing of the board | substrate holding | maintenance apparatus 70 of a micro joint cutting device in the KK cross section in FIG. Explanatory drawing of the board | substrate holding | maintenance apparatus 70 of a clo joint cutting apparatus in the LL cross section in FIG. Explanatory drawing of the operation principle of the board pressing apparatus 70 by the simplified figure of the board pressing apparatus 70. FIG. Explanatory drawing of the operation principle of the board pressing apparatus 70 by the simplified figure of the board pressing apparatus 70. FIG. Front explanatory drawing of the cutting device 45 in the micro joint cutting device which concerns on this invention. Explanatory drawing of the cutting device 45 in the micro joint cutting device which concerns on this invention in the FF cross section in FIG. Explanatory drawing of the cutting device 45 in the micro joint cutting device which concerns on this invention by the BB cross section in FIG. It is a top view in FIG. 11, and is explanatory drawing which abbreviate | omitted one part of the micro joint cutting device which concerns on this invention. Explanatory drawing of the cutting device 45 in the micro joint cutting device which concerns on this invention in the CC cross section in FIG. Explanatory drawing of the cutting device 45 in the micro joint cutting device based on this invention in the DD cross section in FIG. Explanatory drawing of the cutting device 45 in the micro joint cutting device which concerns on this invention in the EE cross section in FIG. Explanatory drawing which shows the directivity of the lower blade and the upper blade when cut | disconnecting the micro joint around a product with the micro joint cutting device which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Micro joint cutting device 3 Movement positioning frame 5 Guide member 7 Lifting frame 9 Guide 11 Lifting actuator 13 Guide member 15 X1-axis moving frame 17 X1-axis guide 19 Guide member 21 Y1-axis moving frame 23 Y1-axis guide 25 X1-axis actuator 27 Operating rod 29 Moving member 31 Escape mechanism 33 Floating cylinder 35 Piston rod 37 Y1 axis actuator 39 Actuating rod 41 Moving member 43 Escape mechanism 45 Cutting device 47 Servo motor 49 Bearing 51 Cutting tool support body 51A, 51B Support block 52, 64 Bolt 53, 55 Pulley 57 Toothed belt 59 Lower blade 59C Inclined blade portion 59J Shaft portion 59K Straight blade 59S Cutting blade portion 59T Contact surface 60 Side edge of product P 61 First upper blade 62 times Preventing member 62T Contact surface 63 Second upper blade 65A First lifting rod 65B Second lifting rod 66 Lifting cylinder 68 Piston rod 67A, 67B Punch head 69A, 69B Lift spring 70 Plate pressing device 71 Lifting rod 72 Plate pressing member 73 Plate Holding portion 74 Y-axis moving body 75 Flange portion 76 X-axis moving body 77 Lift spring 78 Y-axis guide rail 79 Second spring 80 X-axis guide rail 81 Actuator 82 X-direction pressing biasing means 83 Overhanging portion 84 Y-direction pressing bias Means 85 Pressing operation rod 86X, 86Y Locking plate 87 Lift prevention means 88 Y-axis guide rail holder 89 Bracket 90, 94 Rod member 91 Support bracket 92, 96 Locking member 93 Contact member 98, 99 Spring 95 Upper surface pressing member CB Lower blade body MJ1-MJ8 Micro joint part S1-S4 Groove P Product W Sheet metal material

Claims (4)

  The sheet metal material and the product are separated from the semi-finished product which is processed into a state where the sheet metal material and the product are connected and supported by a plurality of fine joint portions and held on a holding table. In the micro joint cutting device, a lower blade capable of entering the lower side of the product in the micro joint portion from a groove formed in the micro joint cutting device between the sheet metal material and the periphery of the product, and the lower blade A first upper blade that can be moved up and down to cut a micro joint portion that connects the linear edge portion of the product and the sheet metal material in cooperation with the corner portion of the product and the sheet metal material. A second upper blade that can be moved up and down to cut the micro joint portion is provided on the groove side formed around the product, and the product on the lower blade inserted into the lower surface of the product is pressed and held freely. And a rotation preventing member having the same contact surface as the contact surface contacting the side edge of the product provided in the shaft portion of the lower blade. 1. A micro joint cutting device, wherein the micro joint cutting device is provided separately in the vicinity of one upper blade side and prevents the product from rotating in the horizontal direction at the time of the last cutting of the plurality of micro joint portions.   The sheet metal material and the product are separated from the semi-finished product which is processed into a state where the sheet metal material and the product are connected and supported by a plurality of fine joint portions and held on a holding table. In the micro joint cutting device, the plate pressing device that presses and holds the product on the holding table from above is provided so as to be movable up and down, and the plate pressing device is provided so as to be able to move slowly in the X and Y axis directions. Micro joint cutting device.   The micro joint cutting device according to claim 2, wherein the plate pressing device includes a Y-axis moving body having a plate pressing member on a lower surface, and an X-axis moving body provided on the Y-axis moving body, A pair of Y-axis guide rails are integrally fixed to the Y-axis moving body, and a pair of X-axis guide rails are integrally fixed to the X-axis moving body. The Y-axis moving body is connected to the X-axis moving body via the Y-axis guide rail holding body movably engaged with the X-axis guide rail and movably engaged with the Y-axis guide rail. The Y-axis moving body is pressed and urged to the X-axis moving body from both sides in the X-axis direction to hold the X-axis moving body at a fixed position in the X-axis direction. A pair of X-direction pressing and biasing means symmetrical to the Y axis is provided, and the front A pair of Y-direction pressing and biasing means symmetric to the X-axis that presses and urges the Y-axis moving body from both sides in the Y-axis direction to hold the Y-axis moving body at a fixed position in the Y-axis direction. A micro-joint cutting device characterized by comprising:   4. The micro joint cutting apparatus according to claim 3, wherein the pair of left and right symmetrically pressing urging means includes a pair of locking plates capable of contacting the left and right side surfaces of the Y-axis guide rail holder, One end of a rod member that extends substantially in the middle of the pair of X-axis guide rails is integrally fixed to a pair of locking plates, and the other end of the rod member is an end of the X-axis moving body. The other end of the rod member is movably provided in a direction away from the X-axis moving body, and the movement of the rod member in the direction of the X-axis moving body is restricted at the other end. A pair of X-axis between the locking plate and the X-axis moving body is provided with a spring that presses and urges the pair of left and right locking plates in the left-right side surface direction of the X-axis moving body. It is inserted and mounted on a guide rail, and a pair of Y is symmetrical in the longitudinal direction. The direction pressing urging means is provided by engaging a pair of Y-axis guide rails provided on the Y-axis moving body with the Y-axis guide rail holding body so as to be movable in the Y-axis direction. A pair of locking plates that can be in contact with each other, and integrally fixing one end of a rod member that extends substantially in the middle of the pair of Y-axis guide rails to the pair of locking plates; The other end portion of the rod member is provided so as to penetrate the end portion of the Y-axis moving body, the other end portion of the rod member is provided movably in a direction away from the Y-axis moving body, and the other end portion of the rod member is provided. A locking member for restricting movement of the X-axis moving body in the direction of the X-axis moving body, and a spring for pressing and biasing the pair of left and right locking plates in the left-right side surface direction of the X-axis moving body. Inserted and mounted on a pair of X-axis guide rails between the X-axis moving body Micro joint cutting device according to symptoms.

Images