JP3960326B2 - Punch press machine - Google Patents

Description

  The present invention relates to a punch press device, and more particularly to a turret type punch press device that continuously processes a workpiece such as a shaft member with a die die while indexing a plurality of punch dies.

  As this kind of punch press device, punches that perform desired punching work on workpieces such as plate materials, upper and lower turrets equipped with dies, strikers that can move up and down to strike the punches, and the workpieces in the X-axis and Y-axis directions There is known a work movement positioning device for moving and positioning the turret so that a plurality of processes are performed after one indexing positioning of the upper and lower turrets (see Patent Document 1).

  More specifically, this punch press apparatus improves the processing efficiency by shortening the indexing time, which has conventionally required a lot of time when indexing a pair of dies (punch, die) to the processing region. An upper turret that supports a number of punches and a lower turret that supports a number of dies corresponding to the punches are rotatably provided, and the punches that are indexed and positioned in the processing region by the rotation of both turrets A pressure striker is provided at a position above the upper turret so as to be movable up and down, and a workpiece movement positioning device is provided that can move and position a workpiece to be processed by a punch and a die in the X-axis and Y-axis directions.

Then, work and more turret punch press with work movement positioning apparatus movable positioning the X-axis and Y-axis direction, a plurality of upper holder which is detachably mounted on the upper and lower turrets being processed by the punch and the die In addition, a plurality of corresponding punches and dies are mounted in a two-dimensional manner, and the upper die holder and the lower die holder can be indexed and positioned in the machining area by rotating the upper and lower turrets, and are indexed and positioned in the machining area. and the striker to Da圧a plurality of punches supported by the upper holder those made provided so as to be movable in the X-axis and Y-axis directions.

  In this way, a plurality of punches and dies corresponding to the upper and lower mold holders that can be attached to and detached from the upper and lower turrets in the turret punch press are two-dimensionally mounted, and the striker is divided into processing areas. It is provided to move in the X and Y axis directions in order to apply a plurality of punches supported by the upper holder that has been positioned and positioned. Various workpieces are moved and positioned in the X and Y axis directions by a workpiece movement positioning device. When performing the above machining, a plurality of types of machining can be performed by moving the striker to a position above the punch in the upper die and lower die holder indexed and positioned in the machining area and the punch, and then pressing the punch. It can be done.

Japanese Examined Patent Publication No. 6-77780 (left column on page 2, right column on page 3 and FIGS. 1 and 6)

  However, this type of punch press apparatus is configured to move a vertically movable striker and a plate material work for pressing the punch against the punch and die of the upper die and the lower die that are positioned by rotational indexing of the upper and lower turrets, Since it is configured to move and position in the Y-axis direction, it takes a lot of time to move and position the striker and workpiece, and there are unsolved problems in improving machining efficiency. In particular, it has not been developed as a punch press device for a shaft member.

  The present invention has been made paying attention to such a problem. The structure can be simplified and the shaft member to be cut and supplied to the processing position on the die side can be simply rotated and indexed in the holder. It aims at providing the punch press apparatus which can be continuously processed in a short time by the press operation by a movement.

In order to solve the above-mentioned object, a punch press apparatus according to claim 1 of the present invention is provided on a circumference of a holder that is moved forward and backward by a drive source and supported so as to be capable of indexing rotation about a rotation axis. The axial direction of each of the punches in which the fixed-length shaft member is automatically indexed to the front surface of the processing position while sequentially indexing the plurality of punches arranged to face the processing position of the die on the axis. pressing the at the punch press machine so as to successively processed by the action, quantitatively to the punch press body 2 tip processing region 8 of the rear of the transfer device the elongated shaft member 10 to be automatically transferred in the axial direction by the a die 4 to the shaft member feed opening 12 provided in the vicinity of the machining position 5 projecting, the tip of the shaft member feed opening 12 or RaJo amount projecting the long shaft member 10 in moving orthogonal to the axial direction the shaft member W, which is cut to a predetermined length Lifting and a cut workpiece feeder T for moving and positioning the processing position 5 front surface of the die 4, the punch 36,38,50 ... of a plurality of types N as each to the processing position of the die 4 corresponds in the axial direction · holding by arranging N or the like rotary indexing machining step order on the same circumference,且 one axial forward and backward movably configured, the punches 36, 38 indexed corresponding to the machining position 5 a holder H for plastic working the end portion by pressing the shaft member W to be moved in the axial direction is positioned in the processing position 5 front toward the 50 ... to the machining position 5, a single A pair of gears G1 having an output shaft 60 for converting the rotation transmitted from the drive source to the input shaft 79 into a three-index operation and outputting it, and meshing with the output shaft 60 and the rotation shaft 55 of the holder H. , G2 are interchangeably mounted and via both gears G1, G2 It consists rotary indexing device 58 comprising a serial holder H is 3 indexable configured in the retracted position, the punches 36,38,50 of the holder H have been positioned and held at the processing position immediately before the upper Symbol die 4 The shaft member W is pressed between the die 4 by the forward movement in the axial direction and the initial process punch 36 for performing the initial process, and the shaft member W after the initial process is pressed between the die 4. Te intermediate step punch 48 which performs the intermediate process comprises a shaft member W after step between the middle than finishing punch 50 which performs finishing process by pressing between the die 4 and the rotary indexing device 58 Is a medium-diameter pulley 74 that is mounted on a drive shaft 78 attached to an input shaft 79 and is rotationally driven via a timing belt M that is spanned between the pulleys of the single drive source. Small tip of the drive shaft 78 through which the medium-diameter pulley 74 is inserted A small-diameter pulley 72 attached to the diameter shaft 76 and driven to rotate synchronously with the medium-diameter pulley 74, and a timing belt M attached to the cam shaft 54 of the lead cam 52 and spanned between the small-diameter pulley 72. The lead cam 52 comprises a large pulley 70 that rotationally drives the lead cam 52, and the rotational drive device 58 is mounted on the cam shaft 54 that is rotationally driven via the large pulley 70 by the single drive source. The cutting workpiece supply device T moves forward and backward between the shaft member supply port 12 and the machining position 5 of the die 4 and mechanically controls the rotation indexing of the holder H and the axial movement back and forth at the retracted position. It is comprised so that it may synchronize with, The punch press apparatus characterized by the above-mentioned.
According to the punch press device, holding the shaft member W being cut the tip of the shaft member W was quantified protrude from the shaft member feed opening 12 to the machining region 8 by moving the cutting work supply device T, the die 4 the shaft member W, which is moved positioned and held in the machining position 5 front, presses subjected to first step between the first step punch 36 and the die 4 by the axial forward movement of the holder 4, the rotary indexing device 58 The shaft member W after the initial process is pressed between the intermediate process punch 36 and the die 4 by the forward movement of the holder H, which is rotationally indexed at the retracted position, to perform the intermediate process, and at the retracted position. The shaft member W after the intermediate process is pressed between the finishing process punch 36 and the die 4 by the axial movement of the holder H, which is rotationally indexed, to perform a finishing process or the like. Then, the indexing operation of the holder H by the rotary indexing device 58 is performed by replacing the output shaft 60 that converts the rotation by a single drive source into a three-indexing operation and outputs the output shaft 60 and the rotating shaft 55 of the holder H. This is done via the possible gears G1, G2. In addition, a timing belt M that is driven between a driving force of a single drive source that rotationally drives the rotary indexing device 58 and a small-diameter pulley 72 attached to the input shaft 79 of the rotary indexing device 58 is applied. The cutting work supply device T moves forward and backward between the shaft member supply port 12 and the machining position 5 of the die 4 by the lead cam 52 of the cam shaft 54 to which the large pulley 70 that is rotationally driven is mounted, and the holder 4 These rotational indexing operations and the operation of moving back and forth in the axial direction are given as operations that mechanically synchronize.

The punch press device according to claim 2 of the present invention is configured such that the pressing shaft member 20 is inserted and held in the insertion hole 5 formed at the processing position of the die 4 in a state of being urged rearward. An operating shaft 80 that moves backward due to the deviation of the outer periphery of the disc cam 56 mounted at the tip of the cam shaft 54 is slidably held in an insertion hole 78 formed in the frame of the punch press apparatus 1, and the operating shaft The pressing shaft member 20 is moved forward to a predetermined position against the urging force via the swing lever 32 supported so as to be swingable on the outer wall surface of the frame by the backward movement of 80, and at each step described above. The end of the push rod 22 inserted into the insertion hole 5 of the die 4 is abutted and positioned, and the finished work is pushed out from the front surface of the die 4 at the end of the final process. And the holder H That is configured to synchronize the rotary indexing and axially forward and backward movement and mechanically a punch press apparatus according to claim.
According to the punch press device described above, when the operating shaft 80 moves backward due to the deviation of the outer periphery of the disc cam 56 attached to the tip of the cam shaft 54, the pressing shaft member 20 resists the urging force via the swing lever 32. Then, by moving forward to a predetermined position, the end portion of the shaft member W in each process is contacted and positioned, and at the end of the process, the completed work is pushed out from the front surface of the die 4 and the cutting work supply device T moves forward and backward . In addition, the rotational indexing of the holder 4 and the axial movement back and forth are mechanically synchronized.

  The present invention has the following effects.

According to the first aspect of the present invention, the tip of the long shaft member that is automatically transferred in the axial direction toward the processing region is cut and held by the cutting work supply device by movement perpendicular to the axial direction, and immediately before the die. shortening sequentially moved and positioned by a shaft member in the processing position, the rotation indexing operation of the holder, the processing time continuously pressing process between a plurality of types of punch and die by the axial forward movement of the holder As a result, the processing efficiency can be improved. In addition, the indexing speed of the holder can be appropriately changed by replacing the pair of gears mounted on the output shaft of the rotary indexing device and the rotary shaft of the holder with a pair of gears having a different ratio. Further, the lead cam mounted on the cam shaft allows the forward / backward movement of the cutting workpiece supply device performed between the shaft member supply port and the machining position of the die to function together with the rotary indexing of the holder and the forward / backward movement in the axial direction. The synchronous operation can be performed at high speed and reliably.

According to the second aspect of the present invention, since the pressing shaft member is positioned and held at a predetermined position by the deviation of the outer periphery of the disc cam, each punch of the holder is moved forward in the axial direction in synchronism with this operation. The shaft member pressed by the step can be received at a fixed position, and the completed workpiece at the end of the process is automatically pushed out from the front surface of the die, so that a reliable continuous operation can be performed at high speed.

  Examples of the present invention will be described below.

  An embodiment of the present invention will be described with reference to the drawings. First, FIG. 1 is a cross-sectional view of a punch press apparatus main body in an embodiment of the present invention, FIG. 2 is a vertical cross-sectional view of a punch press apparatus main body in an embodiment of the present invention, FIG. 3 is a plan sectional view of the punch press apparatus main body in the embodiment of the present invention, FIG. 4 is a plan sectional view showing the relationship between the punch for the initial process attached to the holder, the die and the cutting workpiece supply device, ) Is a plan sectional view showing the relationship between the intermediate process punch attached to the holder and the die, FIG. 6B is a plan sectional view showing the relationship between the finishing process punch attached to the holder and the die, and FIG. FIG. 7 shows a pressing process of the shaft member, (A) is an explanatory view of the initial process, (B) is an explanatory view of the intermediate process, and (C) is an explanatory view of the finishing process.

  First, as shown in FIG. 4, the punch press device 1 automatically transfers the long shaft member 10 toward the processing region 8 by the transfer device 15 in the vicinity of the small-diameter insertion hole 5 serving as the processing position of the die 4. A shaft member supply port 12 is provided, and the shaft member supply port 12 is provided in an axial direction parallel to the central axis of the die 4.

  2 and 3, the transfer device 15 has a long shaft between a pair of feed rollers 15a and 15b that are rotationally driven by a drive source 14 such as a motor attached to the outer wall surface 2a of the punch press device main body 2. The outer periphery of the member 10 is clamped and is automatically transferred toward the machining area 8 on the front surface of the die 4 through the insertion hole 16a of the guide tube 16.

  The insertion hole 5 of the die 4 is formed with a stepped large-diameter hole 25 on the rear side, and the pressing shaft member 20 is fixed in the stepped large-diameter hole 25 while being urged rearward by the compression spring 24. The small-diameter push rod 22 formed in contact with the position and formed at the distal end of the pressing shaft member 20 is inserted into the insertion hole 5, and the distal end is positioned at a fixed position inside the rear side of the front surface of the die 4. Has been.

The shaft member 26 is accommodated in the insertion hole 27 in the axially rearward direction of the pressing shaft member 20 in a state of being urged rearward through the compression spring 24 , and the rear end portion thereof is flush with the outer wall surface 2a. It is configured to be able to move forward via a swing lever described later.

  On the other hand, on the axis line of the insertion hole 5 which is the machining position at the center of the die 4, there are two kinds of N, for example, three kinds of punches 36, 48 and 50, so It is attached to a holder H that can be taken out.

  The holder H is a shaft that can be rotated and indexed via a rotation shaft 55 to a base body B fixed to the tip of a ram R supported by an internal frame (not shown) of the punch press apparatus main body 2 so as to be movable forward and backward. The gear G2 that is supported and attached to the rear end of the rotary shaft 55 meshes with the gear G1 that is attached to the output shaft 60 of a rotary indexing device 58 (described later) driven by a single drive source. The pair of gears G1 and G2 are configured to be exchangeable.

  The holder H is formed in three arms as shown in FIG. 6, and the three types of punches 36, 48, 50 attached to the front surface of each arm tip are on the same circumference around the rotation shaft 55. These three types of punches are composed of a first process punch 36, an intermediate process punch 48, and a finishing process punch 50.

  Specifically, as shown in FIGS. 4 and 6, the case body 46 is attached to the holder H via the flange 45, and the first process punch 36 is attached to the inside of the case body 46 via a detachable stopper member S. Is inserted into the hollow hole formed in the first process punch 36, and the pressing shaft 42 is urged forward toward the die 4 via the compression spring 44, and at the front of the pressing shaft 42. The integrally formed small-diameter sliding shaft 38 is biased in a state of slightly protruding from the tip surface through an insertion hole 40 formed at the center of the initial process punch 36.

  Next, as shown in FIG. 5A and FIG. 6, the intermediate process punch 48 has a case body 63 attached to the holder H via a flange 64, and a removable stop inside the case body 63. The intermediate process punch 48 is positioned and inserted via the member S, and a small-diameter pressing portion 48 a facing the die 4 is formed in front of the intermediate process punch 48.

  Further, as shown in FIGS. 5B and 6, the finishing process punch 50 has a case body 66 attached to a holder H via a flange 68, and a removable stop member inside the case body 66. The finishing process punch 50 is positioned and fitted via S, and a pressing shaft 71 is attached to the hollow hole 73 formed inside the finishing process punch 50 forward toward the die 4 via the compression spring SP. The small-diameter sliding shaft 75 integrally formed in front of the pressing shaft 71 is biased in a state of slightly protruding from the tip surface through the insertion hole 78 formed at the center of the finishing process punch 50. Has been.

  Then, the first process punch 36, the intermediate process punch 48, and the finishing process punch 50, which are three types of punches mounted on the same circumference centered on the rotation shaft 55 at the three-arm radial front end, are provided. Is positioned on the axis of the insertion hole 5 that is the processing position of the die 4 in the order of the process from the initial process punch 36 by rotating counterclockwise of the holder H shown in FIG.

  On the other hand, a cutting work supply device T is disposed in the vicinity of the die 4 as shown in FIGS. 1, 3, and 4. A large-diameter slide shaft 65 is slidably inserted into a boss 67 provided so as to penetrate, and a predetermined amount protrudes from the shaft member supply port 12 on the front surface of the die 4 at the tip of the slide shaft 65. A pressing member 69 is integrally attached together with a sliding plate 77 to which a cutting tool 62 having a circular receiving portion for cutting and holding the tip of the long shaft member 10 is attached.

Further, a holding shaft 61 is extended at the rear end of the sliding shaft 65, and a pair of cam followers C1 and C2 are disposed on the lower surface of the holding shaft 61 with a predetermined distance therebetween, and these cam followers C1 and C2 are arranged. A lead cam 52 at the center of the cam shaft 54 that is rotatably supported so as to cross the box K on the side wall 2b is sandwiched therebetween.

  A large pulley 70 that is driven via a rotary indexing device 58, which will be described later, is attached to the outer end portion of the cam shaft 54. The push rod 22 is attached to the inner end portion of the cam shaft 54 due to the deviation of the outer periphery. A disk cam 56 for operating is mounted.

  As shown in FIGS. 2 and 3, the rotary indexing device 58 has a drive shaft 78 with a medium-diameter pulley 74 attached to its input shaft 79, and the medium-diameter pulley 74 has a single unit (not shown). The timing belt M is stretched between the pulley of one drive source, and the small diameter shaft 76 at the tip of the drive shaft 78 inserted through the pulley 74 has a small diameter for rotationally driving the large pulley 70 via the timing belt M. A pulley 72 is attached.

  The output shaft 60 of the rotation indexing device 58 is configured so that rotation by a single drive source input to the input shaft 79 can be indexed at three positions in 120 degree units in the circumferential direction. The holder H is sequentially indexed counterclockwise via the gears G1, G2.

Then, on the outer periphery of the disk cam 56 mounted on the inner end of the cam shaft 54, rollers 82 rotatably supported on the tip of the operating shaft 80 is biased pressed through the roots if compression The lower end of the swing lever 32 supported swingably on the outer wall surface 2a contacts the rear end of the operating shaft 80 facing the outer wall surface 2a, and the upper end of the swing lever 32 faces the outer wall surface 2a. The shaft member 26 is in contact with the rear end.

  Next, the operation of the punch press apparatus will be described.

  In the initial state, as shown in FIGS. 4 and 6, the insertion hole in which the holder H is in the retracted position by the activation of a single drive source and the center axis of the initial process punch 36 is the machining position at the center of the die 4. Opposing on the 5 axis.

  At this time, the cutting workpiece supply device T is moved forward by the guide of the lead cam 52 and positioned so that the circular receiving portion of the cutting tool 62 corresponds to the shaft member supply port 12 on the front surface of the die 4. When the tip of the long shaft member 10 protrudes from the opening 12 by a predetermined amount, it is cut by the forward movement of the cutting tool 62 by the lead cam 52.

  The shaft member W cut to a predetermined length is supported by the circular receiving portion of the cutting tool 62 and is further moved forward by the guide of the lead cam 52 so as to be the machining position of the die 4. Positioned and held immediately before.

Therefore, when the holder H moves forward by the ram R shown in FIG. 2 by the action of the drive source, the initial process punch 36 moves toward the insertion hole 5 which is the machining position of the die 4, and the cutting shown in FIG. Both ends of the shaft member W supported by the circular receiving portion of the tool 62 are sandwiched between the slide shaft 38 and the push rod 22 protruding from the tip of the initial process punch 36.

At this time, the front end of the push rod 22 is pressed and positioned against the forward end against the biasing force via the swing lever 32 shown in FIGS. When the punch 36 is further moved forward, the sliding shaft 38 is pushed back against the urging force by the shaft member W, and only the initial process punch 36 is moved forward.

Thereby, in the first step, the outer circumferences of both ends of the shaft member W are pressed by the insertion hole 40 of the punch 36 for the first step and the small diameter insertion hole 5 of the die 4, thereby cutting as shown in FIG. Both ends of the shaft member W supported by the circular receiving portion of the tool 62 are formed into the diameters of the insertion hole 40 and the insertion hole 5 by plastic working, and are formed as a shaft member W having a large diameter portion W1 enlarged in the center. Is done.

In the next intermediate step, the holder H is indexed to rotate counterclockwise with the ram R moved to the retracted position, and the central axis of the intermediate step punch 48 corresponds to the axis of the insertion hole 5 of the die 4. the holder H moves forward again, the tip of the shaft member W which has been processed by the first process is the large diameter portion W2 is plastically worked into the tip of the pressed is the shaft member W in an intermediate step punch 48 forward of the pressing portion 48a .

  Next, in the finishing process, the holder H is similarly indexed by rotating counterclockwise at the retracted position, and the finishing process punch 50 is processed in the intermediate process in a state corresponding to the axis of the insertion hole 5 of the die 4. The large-diameter portion W2 at the tip of the member W is pressed by a concave mold formed at the tip of the sliding shaft 75, whereby a finished product of the shaft member W having the final finished shape W3 is obtained.

When the finished product of the shaft member W is formed, the push rod 22 moves forward by a predetermined amount via the swing lever 32 by the deviated portion of the disc cam 56, and the shaft member W is completed from the insertion hole 5 of the die 4. The product is ejected forward and discharged onto a chute 84 , shown in phantom in FIG.

As a result, when the machining cycle of the shaft member W is completed by the above-described three steps and a finished product of the shaft member W is projected from the insertion hole 5 of the die 4, machining in the next three steps is started. When the process is started, overlapping explanation is omitted, but both ends of the next shaft member W which is cut from the tip of the long shaft member 10 and positioned and held immediately before the processing position of the die 4 is the axis of the holder H. By the forward movement in the direction, plastic working is performed by the insertion hole 40 at the tip of the initial process punch 36 and the insertion hole 5 of the die 4.

  The following steps are the same as those described above, and the description thereof is omitted. As described above, the forward / backward movement between the shaft member supply port 12 of the cutting workpiece supply device T and the insertion hole 5 of the die 4, the rotational indexing of the holder H, and the forward / backward movement in the axial direction are mechanically synchronized. Further, the operation of positioning and holding the push rod 22 at a predetermined position via the shaft member 26 by the deviation of the outer periphery of the disc cam 56 and the shaft member W pressed by the punches 36, 48, 50 of the holder H are fixed. The axial forward movement movement received at the position is mechanically synchronized.

  As described above, the distal end of the long shaft member 10 that is automatically transferred in the axial direction toward the processing region is cut and held by the cutting workpiece supply device T by the movement orthogonal to the axial direction, and is moved to the processing position on the front surface of the die 4. The shaft member W, which is sequentially moved and positioned, is continuously moved between the three types of punches 36, 48, 50 and the die 4 by a simple three-position rotational indexing operation of the holder H and the forward movement of the holder H in the axial direction. By pressing to the processing time, the processing time can be shortened and the processing efficiency can be improved. Of course, in this example, an example in which three types of punches are used is shown. However, a plurality of punches N may be used in accordance with processing requirements, and each punch may be equally arranged.

  Further, a pair of gears G1 and G2 mounted on the output shaft 60 of the rotary indexing device 58 and the rotary shaft 55 of the holder H which converts the rotation of the driving source by a single driving source into a three-indexing operation and outputs it are provided. The indexing speed of the holder H can be appropriately changed by exchanging with a pair of gears with different ratios.

  Further, the cutting work supply device T is moved forward and backward between the shaft member supply port 12 and the insertion hole 5 serving as the machining position of the die 4 by the lead cam 52 mounted on the cam shaft 54 that is rotationally driven by a single drive source. This forward / backward movement is mechanically synchronized with the rotation index of the holder H and the forward / backward movement in the axial direction, so that a high-speed and reliable operation can be performed.

Since the push shaft member 20 moves forward due to the deviation of the outer periphery of the disc cam 56 , the push rod 22 is positioned and held at a predetermined position. Therefore, the holder is moved forward in the axial direction in synchronism with this operation. The shaft member W pressed by each of the H punches 36, 48, 50 can be received at a fixed position, and the finished workpiece at the end of the process is automatically pushed out from the front surface of the die 4 to ensure continuous operation at high speed. Is possible.

Further, when pressing is performed between the various punches 36, 48, 50 and the insertion hole 5 which is the processing position of the die 4, the pressing portion of the holder H is reinforced by the base body B shown in FIG. H itself can be reduced in weight.

It is a cross-sectional view of the punch press apparatus main body in the Example of this invention. It is a longitudinal cross-sectional view of the punch press apparatus main body in the Example of this invention. It is a plane sectional view of the punch press device main part in the example of the present invention. It is a top sectional view showing the relation between the first process punch attached to the holder, the die, and the cutting work supply device. (A) is a plane sectional view showing the relation between the intermediate process punch attached to the holder and the die, and (B) is a plane sectional view showing the relation between the finishing process punch attached to the holder and the die. It is a front view of a holder. The shaft member pressing step is shown (A) is an explanatory view of the initial step, (B) is an explanatory view of an intermediate step, and (C) is an explanatory view of a finishing step.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Punch press apparatus 2 Punch press apparatus main body 2a Outer wall surface 2b Side wall 4 Die 5 Insertion hole (processing position)
8 Processing region 10 Long shaft member 12 Shaft member supply port 15 Transfer device 15a, 15b Roller 16 Guide tube 16a Insert hole 20 Press shaft member 22 Push rod 25 Stepped large diameter hole 26 Shaft member 27 Insert hole 32 Oscillating lever 36 Initial process punch 38 Sliding shaft 40 Insertion hole 42 Press shaft 45 Flange 46 Case body 48 Intermediate process punch 48a Press part 50 Finishing process punch 52 Lead cam 54 Cam shaft 55 Rotating shaft 56 Disc cam 58 Rotating indexing device 60 Output shaft 61 Holding shaft 62 Cutting tool 63 Case body 64 Flange 65 Sliding shaft 66 Case body 67 Boss 68 Flange 69 Pressing member 70 Large pulley 71 Pressing shaft 72 Small diameter pulley 73 Hollow hole 74 Pulley 75 Sliding shaft 76 Small diameter shaft 77 Sliding Moving plate 78 Insertion hole 79 Input shaft 80 Operating shaft 82 Roller 84 Chute B Base body C1, C2 Cam Follower G1, G2 Gear H Holder K Box M Timing belt R Ram S Stopping member SP Compression spring T Cutting work feeder W Shaft member W1, W2 Large diameter part W3 Finished shape

Claims (2)

A plurality of punches equally distributed on the circumference of a holder that is moved forward and backward by a drive source and supported so as to be able to be indexed about the rotation axis is sequentially indexed so as to face the machining position of the die on the axis. In the punch press apparatus which is sequentially processed by the action of pressing the axial member of a fixed length automatically supplied to the front surface of the processing position in the axial direction of each of the indexed punches,
Die 4 the tip of the punch press body 2 behind the transfer device the elongated shaft member 10 to be automatically transferred in the axial direction by the is provided with a shaft member feed opening 12 for quantitatively projecting working area 8 near the machining position 5 When machining of the die 4 to retain the shaft member W, which is cut to a predetermined length of the distal end of the shaft member feed opening 12 or RaJo amount projecting the long shaft member 10 in moving orthogonal to the axial direction A plurality of types N of punches 36, 38, 50,... On the same circumference so as to correspond to the machining position of the die 4 and the cutting work supply device T that moves and positions at the front of the position 5 in the axial direction. and held by arranging N or the like rotary indexing machining process sequence,且 one axial reciprocating configured to be movable, the respective punches 36,38,50 ... which indexed corresponding to the machining position 5 the processing position 5 previous move axially toward the machining position 5 By pressing the shaft member W, which is positioned on the holder H for plastic working the end, the output shaft rotation 3 by converting the indexing operation the outputs to be transmitted to the input shaft 79 from a single drive source A pair of gears G1 and G2 meshing with the output shaft 60 and the rotation shaft 55 of the holder H are interchangeably mounted, and the holder H is moved to the retracted position 3 through both gears G1 and G2. Comprising a rotary indexing device 58 configured to be indexable ,
Each punch 36,38,50 of the holder H is the upper Symbol shaft member W, which is positioned and held at the processing position immediately before the die 4, the forward movement of the axial direction pressing to first step between the die 4 first in the step punch 36, the shaft member W after the first step working with intermediate step punch 48 which performs an intermediate step by pressing between the die 4, the die of the shaft member W after-process medium 4 for The rotary indexing device 58 is mounted on a drive shaft 78 attached to an input shaft 79 so as to perform a finishing process by pressing between them . A medium-diameter pulley 74 that is rotationally driven via a timing belt M spanned between the pulleys and a small-diameter shaft 76 at the tip of the drive shaft 78 that is inserted through the medium-diameter pulley 74 and is attached to the medium-diameter pulley. 74, a small-diameter pulley 72 driven to rotate synchronously with Is mounted on a cam shaft 54 of Dokamu 52 via a timing belt M stretched over between the small-diameter pulley 72 consists large pulley 70 for rotating the lead cam 52,
The rotary drive device 58 is connected to the shaft member supply port 12 by the lead cam 52 mounted on the cam shaft 54 that is rotationally driven by the single drive source via the large pulley 70. The die 4 is configured to move forward and backward with respect to the machining position 5 and to mechanically synchronize the rotation indexing of the holder H and the axial movement in the retracted position. Punch press device. The insertion hole 5 formed at the machining position of the die 4 is inserted and held in a state where the pressing shaft member 20 is urged rearward, and the outer periphery of the disc cam 56 mounted on the tip of the cam shaft 54. The operating shaft 80 that retreats due to the displacement of the punch is slidably held in the insertion hole 78 formed in the frame of the punch press apparatus 1 and can swing on the outer wall surface of the frame by the reciprocating movement of the operating shaft 80. The push shaft member 20 is moved forward to a predetermined position against the urging force through the swing lever 32 supported by the swaying lever 32, and the push rod 22 inserted into the insertion hole 5 of the die 4 at each step is used. The end part is abutted and positioned, and the finished work is pushed out from the front surface of the die 4 at the end of the final process. The cutting work supply device T is moved forward and backward, and the holder H is rotated and indexed and moved in the axial direction. Mechanically synchronized Punch press apparatus according to claim 1, characterized in that it is configured to so that.

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