JP2009241217A - Feeding device and machining device for bar material with deformed section - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a general-purpose and economical device capable of performing various types of machining of a long and narrow bar material without turning the bar around its axis at a short cycle time. <P>SOLUTION: A bar material feeding device and a machining device can machine a bar material with deformed section by using a general-purpose two-spindle opposed lathe having two spindles opposed each other and two rotary tool turrets oppositely arranged with the axis of the spindles being between the turrets. The bar material feeding device 2 feeds the shape to the machining device 1 in its axial direction by fixing a phase of the bar material with deformed section. A V-shaped receiving member 41 for movably supporting the bar material in the axial direction is arranged on a pointed head of an arm 44 extending in a direction orthogonal to the longitudinal direction of a long and narrow vertically-moving base 45 prepared in the longitudinal direction of the bar material. The center of the cross-section of the bar material supported by a plurality of V-shaped receiving members 41 is positioned on the feeding axis by moving the vertically-moving base 45 vertically and horizontally, and the bar material is fed to the machining device 1 by pushing a rear end of the bar material with a pusher 51. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  In the present invention, at least a part of the peripheral surface is provided with a fixed surface such as a flat surface or a concave surface that prevents rolling of the bar material on the horizontal surface (a surface that can be fixed on the horizontal surface with the surface at the bottom) in the longitudinal direction. Bar material supply device that feeds bar material with an irregular cross-section provided over its entire length in the longitudinal direction to a lathe or other processing machine, and an irregular cross-section bar including such bar material supply device and processing machine The present invention relates to a material processing apparatus.

  As a means of continuously processing a number of processed products from the bar material, the bar material is fed from the bar material supply device to the processing machine in the longitudinal direction, and the tip of the fed bar material is gripped by the chuck provided in the processing machine, After processing the tip of the bar material protruding from the chuck with a tool provided on the processing machine, cut the processed part from the tip of the bar material to make a processed product, and then open the chuck to set the bar material to the specified length. Processing means for repeating the operation of sending and closing the chuck is known.

  The bar material supply device used for such processing includes a receiving member that supports the bar material so as to be movable in the axial direction (longitudinal direction of the bar material; hereinafter the same) on the feed axis, and a bar supported by the receiving member. And a pusher that pushes the rear end of the material (the end on the side opposite to the processing machine) in the axial direction. Furthermore, in this type of bar material supply device, a plurality of bar materials to be fed onto the receiving member are provided on the side of the receiving member so that a plurality of bar materials can be continuously supplied to the processing machine. It is also common to provide a storage section for storing. In a general structure, the bar materials stored side by side in the storage section are dropped onto the receiving member one by one by a delivery device provided on the delivery end side.

As this type of bar material supply device, Patent Document 1 discloses that a storage shelf provided on the side of the feed axis of the bar material is multi-staged, and a bar is provided from the delivery side end (end on the feed axis side) of the storage shelf. There has been proposed a bar material supply device having a structure in which a material is once lifted and fed onto a receiving member. Further, in Patent Document 2, when a bar material is fed into a lathe through a through hole provided in the center of the main shaft, a stopper inserted into the through hole of the main shaft from the chuck side is provided so as to be reciprocally movable in the axial direction. When the tip of the cross-section bar interferes with the chuck claw and cannot pass through the through-hole, the phase of the spindle is adjusted while the bar is retracted by pushing the stopper in the counter feed direction with a force larger than the pusher feed force. A technique is disclosed that enables the supply of a modified cross-section bar material to a lathe by a changing inching operation.
Japanese Patent Laid-Open No. 5-17012 Japanese Patent Laid-Open No. 7-204905

  The bar material supply device having the above structure is widely used for processing for supplying a bar material to a lathe through a through-hole provided in the shaft center of the main shaft and turning the tip of the supplied bar material. In such a bar material supply device, a structure is employed in which the bar material is rotatably supported on the receiving member, and there are many round bars as the bar material, even if it is called a deformed bar material, a regular hexagonal cross section Most of the bar materials have a regular polygonal cross section.

  However, the bar material has not only a circular cross section or a regular polygon cross section, but also a rectangular cross section or a cross section called a D-cut material provided with a fixed surface (generally a flat surface) at one place on the circumference. Machining of these irregular cross-section bar materials is also widely performed. Conventionally, however, there is no general-purpose processing device that can continuously process this type of cross-section bar material in one step, and an expensive dedicated machine is required to perform processing with a particularly short tact time. .

  An object of the present invention is to provide a general-purpose and economical apparatus capable of performing various types of processing on an elongated bar member without rotation around an axis with a short tact time. In order to solve this problem, the present invention uses a general-purpose two-spindle opposed lathe provided with two opposing spindles and two rotary tool turrets arranged opposite to each other across the spindle axis. Provided is a bar material supply device that makes it possible to perform processing based on a stationary surface of a deformed cross-section bar material, and a bar material processing device including the bar material supply device and a processing machine such as a two-spindle opposed lathe. ing.

  The bar material supply device 2 according to the present invention supplies the processing unit 1 in the axial direction with the phase (angle around the central axis) of the odd-shaped cross-section bar material W set to a fixed angle. The receiving member that supports the bar material W fed into the processing machine 1 so as to be movable in the axial direction thereof intersects with the first guide portion 41a that supports the stationary surface Wa formed on the peripheral surface of the bar material W. Let it be a V-shaped receiving member provided with 2 guide parts 41b. A preferred V-shaped receiving member is a first roller that freely rotates around an axis in the feed perpendicular direction parallel to the stationary surface Wa of the bar member, and an axis in the second feed perpendicular direction that intersects the axis of the first roller. It is a receiving roller pair which consists of the 2nd roller which rotates freely. Each of the plurality of V-shaped receiving members 41 is provided at the distal ends of a plurality of arms 44 extending in a direction perpendicular to the longitudinal direction from an elevating / moving table 45 elongated in the longitudinal direction of the bar member W. The bar W supported by the plurality of V-shaped receiving members 41 so as to be movable in the axial direction is positioned on the feed axis by the up-and-down movement and the horizontal movement of the up-and-down moving table 45, and the pusher 51 holds the rear end. Pressed and supplied to the processing machine 1.

  The processing apparatus of the present invention fixes the phases of chucks 13a and 13b provided at opposite ends of two main shafts (axes on which a chuck for gripping a bar material) 11a and 11b arranged on the same axis Ca, The bar tool W is mainly processed in the direction perpendicular to the axis by the rotary tool turrets 15a and 15b provided on both sides of the main shaft. Chuck 13a, 13b shall have the nail | claw 18 (18a-18d) according to the cross-sectional shape of the bar material W processed, and the phase of the bar material W sent from the bar material supply apparatus 2 with the phase of chuck | zipper 13a, 13b. The bar material is gripped and released by fixing the phase in accordance with. The chuck 13b on the bar material supply device 2 side reciprocates in the axial direction with a predetermined stroke corresponding to the length of the processed product so that the bar material W is supplied from behind the reciprocating side chuck 13b. The processed product is discharged from behind the opposite chuck 13a.

  The moving stroke of the reciprocating side chuck 13b is a stroke registered in advance in the NC device according to the length of the processed product, and the reciprocating side chuck 13a is closed and the opposite side chuck 13a is opened. By advancing the chuck 13b toward the opposite chuck 13a, an intermittent feed in the axial direction for sequentially feeding the bar material W to the next machining location is performed. For the processing of the bar material W, both chucks 13a and 13b are closed and the bar material W is gripped on both sides of the processing location, and the rotations mounted on the turrets 15a and 15b arranged with the spindle axis Ca interposed therebetween. A tool is selected by indexing operation of the turret, and machining is preferably performed simultaneously from both sides of the bar material W. When the processing of one processing portion of the bar material W is completed, the reciprocating side chuck 13b is opened and retracted by a predetermined stroke, then the reciprocating side chuck 13b is closed and then the opposite side chuck 13a is opened, and the reciprocating side chuck 13b is opened. Is advanced by a predetermined stroke, the next machining position is positioned between the two chucks 13a and 13b, and the chucks 13a and 13b on both sides are closed to perform the next machining. By repeating this operation, the bar material W supplied from the bar material supply device 2 is subjected to predetermined processing at predetermined intervals.

  For cutting the bar material W, one of the rotary tool turrets 15a and 15b can be moved in the Y-axis direction, an end mill is attached to the turret, the end mill is indexed, and the turret crosses the bar material W in the Y-axis. This can be done by moving it.

  According to the invention of claim 1 of the present application, the odd-shaped cross-section bar material supply device includes a plurality of receiving members 41 arranged at predetermined intervals in the longitudinal direction of the bar material W to be supplied, and a plurality of receiving members. In the apparatus for supplying bar material to a processing machine having a pusher 51 that pushes the end of the bar material supported on Cb with a limited force and feeds the bar material in the longitudinal direction, each of the receiving members is a bar Each V-shaped receiving member 41 includes a first guide portion 41a parallel to the stationary surface Wa formed on the peripheral surface of the material and a second guide portion 41b intersecting with the first guide portion. The receiving member is provided at the distal ends of a plurality of arms 44 extending in the direction perpendicular to the longitudinal direction from the vertically moving table 45 elongated in the longitudinal direction of the bar material, and the plurality of V-shaped receiving members are moved up and down by the vertically moving table. V Wherein the positioning sending the cross-sectional center of the supported bar material member on the axis Cb, which is a supply device of a modified cross-section bar member to processing machines.

  Moreover, the modified cross-section bar material processing apparatus according to claim 2 of the present application includes the bar material supply device and the processing machine 1 provided with the above-described means. The two workpiece gripping chucks 13a and 13b arranged opposite to each other on the feed axis Cb of the bar material W to be fed and the two workpiece gripping chucks are arranged at positions facing each other across the feed axis Cb. Two rotating tool turrets 15a and 15b, and the workpiece gripping chuck has through holes 12a and 12b through which the bar material passes, and is fixed at least around the axis Ca that coincides with the feed axis Cb. The bar material supply side 13b is a chuck whose movement position is controlled in the Z-axis direction, which is the feed axis direction, and the rotary tool turret is closer to and away from the Z-axis direction and the feed axis. It is a turret whose movement position is controlled in the X-axis direction inclined with respect to the horizontal plane, and is provided in a direction perpendicular to the X-axis direction of the first guide portion 41a of the bar material supply device. It is a processing apparatus of cross-section bar material.

  An apparatus for processing an irregular cross-section bar material according to claim 3 of the present application is an apparatus for processing an irregular cross-section bar material provided with the above means, wherein at least one of the two rotary tool turrets 15a and 15b is the Z-axis. It is a turret whose movement position is controlled also in the Y-axis direction orthogonal to the direction and the X-axis direction.

  An apparatus for processing an irregular cross-section bar material according to claim 4 of the present application is the processing apparatus for an irregular cross-section bar material provided with the means according to claim 2 or 3, wherein the processing machine 1 operates the bed surface. It is a two-spindle opposed lathe equipped with a slant-shaped bed surface 14 inclined in the direction of lowering the person's side, and rotating tool turrets 15a and 15b arranged above and below the spindle axis Ca. There is.

  The processing apparatus of the odd-shaped cross-section bar material which concerns on invention of Claim 6 of this application WHEREIN: In the processing apparatus of the bar material provided with the means of the said Claim 2, 3 or 4, The bar material supply apparatus 2 has two or more. A plurality of V-shaped receiving members, each of which includes a storage portion including a plurality of rotating bodies (chains) 31 that support a bar material by a V-shaped receiving plate 32 and run intermittently in a direction perpendicular to the longitudinal direction of the bar material; 41 is a position between two adjacent circulating bodies, and is arranged at a position on the end side in the running direction of the circulating bodies.

  The bar material supply device according to claim 5 of the present application is the bar material supply device provided with the means according to claim 1, wherein the bar material W is supported by a plurality of V-shaped receiving plates 32. The storage section 3 is provided with a plurality of circular bodies (chains) 31 that travel intermittently in a direction orthogonal to the longitudinal direction of the bar material, and the plurality of V-shaped receiving members 41 are adjacent two circular bodies. It is located in the position between them and is located at the position on the end side in the running direction of the rotating body.

  The bar material supply device 2 according to the present invention is configured so that a bar material W having a deformed cross section having a stationary surface Wa continuous in the longitudinal direction on the peripheral surface is axially applied to the processing machine at a constant phase with respect to the stationary surface Wa. It can be supplied. The bar material supply apparatus 2 according to the present invention is configured so that the center of the cross section of the bar material having different cross-sectional dimensions (width and height) by the vertical movement and lateral movement of the V-shaped receiving member 41 that supports the bar material W is the spindle axis of the processing machine 1. The bar material W can be supplied in accordance with Ca. In addition, since the V-shaped receiving member 41 that supports the bar material W is attached to the tip of the arm 44 that extends in the direction perpendicular to the axis from the up-and-down moving table 45, the transport chain 31 that feeds the bar material W onto the V-shaped receiving member 41. The bar material W can be received from the transport chain 31 and the shelf board of the storage section by the ascending operation of the V-shaped receiving member 41 without causing interference with the shelf board of the storage shelf. That is, at least the delivery part of the transport chain 31 and the shelf board storing the plurality of bar members W may be disposed between the arms 44.

  The bar material processing apparatus according to the present invention is a fixed surface of the bar material from both sides of the bar material W by the tools mounted on the two rotary tool turrets 15a and 15b arranged across the feed axis Cb of the bar material W. It is possible to perform processing based on Wa. For example, when processing a stepped hole in a direction perpendicular to the stationary surface Wa in the bar material W, processing a large-diameter hole (for example, a counterbore hole or a chamfer around the hole) from both sides of the bar material W at the same time. Can do.

  In the bar material processing apparatus of the present invention, since the axial direction of the first guide portion 41a of the V-shaped receiving member 41 of the bar material supply device and the X-axis direction (tool cutting direction) of the processing machine 1 are orthogonal to each other, This is particularly suitable for processing a hole defined by the first guide portion 41a and orthogonal to the stationary surface Wa defined by the chuck claw 18.

  Further, when a two-spindle opposed NC lathe equipped with rotating tool turrets 15a and 15b is used as the processing machine 1, a plurality of rotating tools mounted on each turret and the X-axis and Z-axis of the turrets 15a and 15b controlled by NC are used. By moving the direction, it is possible to machine long holes and long grooves, and by using the above lathe equipped with a rotating tool turret that can also move in the Y-axis direction, complicated processing comparable to a machining center can be performed. There is an effect that it can be performed at a necessary place.

  Next, the present invention will be further described with reference to the drawings. FIG. 1 is a front view showing an example of a processing apparatus according to the present invention. Reference numeral 1 denotes a two-spindle opposed lathe, 2 denotes a bar material supply device, and 6 denotes a processed product receiving device. FIG. 2 is a schematic view of the main part of the two-spindle-facing lathe as viewed from a direction perpendicular to the bed surface, and a part of the bar material supply device is schematically shown. 3 and 4 are a plan view and a side view of the bar material supply device, FIG. 5 is a perspective view showing the main part of the bar material supply device, and FIG. 6 shows the main axis and X-axis directions of the lathe and the bar material supply device. FIG. 7 is an explanatory diagram showing the relationship between the collet chuck claw and the bar material, and FIG. 8 is a schematic perspective view showing the main part of the processed product receiving apparatus 6. FIG. FIG.

  The two-spindle opposed lathe 1 is a two-spindle opposed lathe provided with through-holes 12a and 12b for feeding and discharging the bar material W fed in the axial direction at the center, and the left spindle (left spindle) 11a in the drawing is the axis. A fixed main shaft that is not movable in the direction, a right main shaft (right main shaft) 11b in the figure, is a movable main shaft that is movable in the axial direction and whose movement position is controlled by the NC device. The bar material supply device 2 is disposed on the moving side main shaft 11b side of the lathe 1. The bar material to be processed is supplied through the through hole 12b of the moving side main shaft and passes through the through hole 12a of the fixed side main shaft. Discharged.

  The two-spindle-facing lathe 1 includes a so-called slant-type bed whose bed surface 14 is inclined in a direction in which the operator side is lowered, and the tool cutting direction (X-axis direction) of the turrets 15a and 15b is relative to the horizontal plane. And tilted 60 degrees.

  The lathe 1 includes turrets 15a and 15b each provided with a tool driving device for driving a rotary tool such as a drill or a milling cutter mounted on the turret at positions opposed to each other across the spindle axis Ca. I have. The upper and lower turrets 15a and 15b can move in the X-axis direction and the Z-axis direction, respectively, and the upper turret 15a can also move in the Y-axis direction. Using the end mill Ta, the bar material can be cut by moving the upper turret 15a in the Y-axis direction. A stopper 17 that positions the tip of the bar material that is advanced and supplied on the main axis Ca is mounted at one location of the lower turret 15b.

  Collet chucks 13a and 13b provided with gripping claws 18 that match the cross-sectional shape of the bar material to be processed are mounted on opposite ends of the main shafts 11a and 11b. For example, when a bar material W having a substantially rectangular cross section as shown in FIG. 7 is processed, a collet chuck having four claws 18a to 18d that are in contact with the four surfaces is attached.

  The bar material supply device 2 includes a storage unit 3 formed by a plurality of transport chains 31 arranged in parallel, and a feed unit 4. The feed section 4 is supported by a receiving roller pair (V-shaped receiving member) 41 that moves synchronously up and down and in the front-rear direction (left-right direction in FIG. 4), and is supported by the receiving roller pair 41. A pusher 51 that pushes the rear end (end on the counter lathe side) of the bar material W moved to a position that coincides with the axis Ca is provided.

  Each transport chain 31 is provided with a receiving plate 32 having a V-shaped receiving side on the link plate of every other link. The plurality of transport chains 31 are synchronously driven by a single drive shaft 35 to which a chain sprocket 34 on the delivery side is fixed. Each of the receiving portions 33 of the receiving plates 32 provided on the plurality of transport chains 31 is disposed on the same axis parallel to the bar material. The transport chain 31 travels intermittently by a distance corresponding to the arrangement pitch of the receiving plates 32 by intermittent rotation of the motor 36 that drives the drive shaft 35. The final stop position on the feeding portion 4 side of the receiving plate 32 is a position almost directly above the drive shaft 35, and this position is a position almost directly below the extension line of the main spindle axis Ca of the lathe.

  The storage unit 3 and the feed unit 4 are arranged on the upper surface of the frame 21 of the bar material supply device, and a plurality of front and rear direction positions are provided at the position closest to the upper surface of the frame upper surface (the position on the left side in FIG. 4). The guide bar 22 is fixed, and a feed screw 23 parallel to the guide bar 22 and its drive motor (back and forth motor) 24 are mounted. The guide bar 22 is mounted with a longitudinally movable table 25 elongated in the feed direction so as to be movable in the guide direction. A feed nut 26 fixed to the lower surface of the forward and backward movable table 25 is screwed into the feed screw 23. That is, the forward / backward movement table 25 is moved and positioned in the front-rear direction by the forward / reverse rotation of the forward / backward movement motor 24.

  Two sets of lifting units 40 are mounted on the front / rear moving table 25 on the side closer to the lathe and the side farther from the lathe. Each lifting / lowering unit 40 is provided with a lifting / lowering platform 45 that is divided into a side closer to the lathe and a side farther from the lathe and is elongated in the feed direction so as to be movable up and down.

  Each elevating unit 40 includes two linear guides 46 that guide the elevating moving table 45 so as to be movable up and down, and an elevating drive device 47 disposed at an intermediate position thereof. The elevating drive device 47 includes an elevating motor 28 having a pinion 27 fixed to an output shaft, and a vertical rack 48 fixed to the elevating moving table 45, and the rack 48 meshes with the pinion 27. The forward / backward movement motor 24 and the lifting / lowering motor 28 are servo motors whose rotation angles are controlled by an NC device. The up-and-down moving table 45 is moved and positioned in the front-rear direction (horizontal direction) by the rotation of the back-and-forth motion motor 24, and is moved and positioned in the height direction by the rotation of the elevating motor 28.

  The plurality of receiving roller pairs 41 that support one bar member fed to the lathe 1 are respectively attached to the distal ends of a plurality of arms 44 that have base ends fixed to the ascending / descending movement table 45 and extending toward the storage unit 3 side. ing. The arm 44 and the receiving roller pair 41 at the tip thereof are arranged at a position between the plurality of conveying chains 31 arranged in the storage section, and the approximate position of the receiving roller pair 41 is the driving shaft 35 of the conveying chain. It is a position just above.

  The receiving roller pair 41 is formed of a first roller 41a and a second roller 41b that rotate about axes that intersect each other. The first roller 41a and the second roller 41b can freely rotate around two roller shafts planted in a direction crossing the roller mounting block 42. The roller mounting block 42 is fixed to the tip of the arm 44 with a screw so that the axial direction of the first roller 41a is the direction described below.

  The axis of the first roller 41a of the receiving roller pair 41 and the first side 33a of the receiving part of the receiving plate provided in the transport chain 31 are parallel to the Y axis of the lathe which is a processing machine. The shaft of the second roller 41b of the receiving roller pair and the second side 33b of the receiving portion are set in a direction orthogonal to the first roller 41a and the first side 33a, or substantially the stationary surface Wa based on the bar material to be processed. When an orthogonal plane Wb is provided, the direction is parallel to the second plane.

  FIG. 6 shows an example of the receiving roller pair 41 and the receiving portion receiving portion 33 when the bar material W has a substantially rectangular cross section. The stationary surface Wa of the bar material W is a lower surface on the wide side, and the lower surface is supported by the first roller 41a and the first side 33a in a direction perpendicular to the X axis of the lathe.

  Above the feed axis of the bar material supply device 2, a feed guide 52 parallel to the feed direction and a feed belt 53 parallel to the guide are mounted. A pusher 51 that pushes the rear end of the bar material W is fixed to a feed base 54 fixed at one place. The feed belt 53 is driven by a feed motor 56 (see FIG. 2) connected to a pulley 55 on the lathe 1 side. The feed motor 56 is an inverter motor that is torque limited by a torque that stops when the tip of the bar material comes into contact with the stopper 17 that has advanced on the main axis Ca of the lathe.

  As shown in FIG. 2, a sensor 57 for detecting the bar material is provided at a position closest to the lathe 1 on the feed axis of the bar material supply device 2. The length of the bar material W supplied can be detected by the NC device based on the rotational position of the feed motor 56 when the sensor 57 detects the tip of the bar material W. Also, by registering the positional relationship in the feed direction between the lathe 1 and the bar material supply device 2 in advance with the NC device, the lower position when the tip of the bar material W is stopped by the stopper 17 mounted on the lower turret of the lathe. It can also be detected by the position of the turret 15b and the rotational position of the feed motor 56.

  The processed product receiving apparatus arranged on the left side of the lathe 1 is a process in which the lathe 1 is pushed in the axial direction from the rear end (end on the non-chuck side) of the fixed main shaft 11a of the lathe as schematically shown in FIG. A strip-shaped receiving portion 61 that is elongated in the feed direction for receiving the finished bar material, a storage plate 62 that extends obliquely downward to the side, and an electromagnetic solenoid type that pushes the bar material that has fallen on the receiving portion 61 toward the storage plate 62 side. A horizontal push pusher 63 and a photoelectric sensor 64 (light projector 64a and light receiver 64b) for detecting a processed product dropped on the receiving portion 61 are provided.

  The horizontal push pusher 63 receives the bar material detection signal of the photoelectric sensor 64, causes the rod 63a to protrude toward the storage plate 62, and pushes the processed bar material on the receiving portion 61 toward the storage plate 62. The pushed bar material slides on the storage plate 62 and is sequentially stored on the storage plate 62.

  Next, the operation of the bar material processing apparatus configured as described above will be described. The unprocessed bar material is placed on the first side 33a of the receiving portion on the receiving portion 33 of the conveying chain provided in the storage portion 3 of the bar material supplying device 2 with its stationary surface (reference surface) Wa. It is mounted in the state. The transport chain 31 is a timing corresponding to one arrangement pitch of the receiving plate 32 at a timing after the bar material of the feeding unit 4 is sent to the lathe 1 and the receiving roller pair 41 is lowered to a height below the receiving plate 32. The vehicle runs intermittently and stops the state-of-the-art bar material of the storage section above the lowered receiving roller pair 41.

  Next, the receiving roller pair 41 is raised to a position higher than the receiving plate 32, and the state-of-the-art bar material W is lifted while being supported by the receiving roller pair 41. The fixed surface of the raised bar material is supported by the first roller 41a of the receiving roller pair. The receiving roller pair 41 rises and moves back and forth to a height at which the center of the cross-section of the raised bar material coincides with the position of the main spindle axis Ca of the lathe. This ascent and back-and-forth movement is performed by driving the back-and-forth motor 24 and the lift motor 28 under the control of the NC device.

  When all the processing for the bar material fed into the lathe 1 is completed and the bar material is discharged from the processing area A of the lathe 1, the stopper 17 attached to the lower turret 15b of the lathe 1 is used as the main shaft. The pusher 51 is positioned on the axis Ca, and the pusher 51 pushes the rear end of the bar material supported by the receiving roller pair 41 to supply the bar material to the lathe 1. During this supply, the tip of the bar material is detected by the sensor 57, and when the tip of the bar material is sent to the processing area A through the through hole 12b of the moving main spindle and the tip collides with the stopper 17. When the bar material feed load exceeds the limit torque of the feed motor 56, the feed motor 56 is forcibly stopped.

  Next, when the chuck 13b of the moving main spindle closes and grips the bar material, the moving main spindle 11b moves to the fixed main spindle 11a side, and the tip of the bar material is inserted into the chuck 13a of the fixed main spindle. The moving side spindle 11b stops, the chuck 13a of the fixed side spindle closes, and the tip of the fed bar material is gripped by both opposing chucks. In this state, the predetermined rotating tools Ta, Tb, Tc of the upper turret 15a and the lower turret 15b are indexed, and by the rotation of the tools and the movement of the upper and lower turrets 15a, 15b in the X-Z axis direction and the necessary Y axis direction Then, the bar material is processed at a location between the chucks 13a and 13b.

  When the predetermined processing is completed, the moving side chuck 13b is opened, and the moving side main shaft 11b is retracted by one pitch of the bar material processing portion (the interval between adjacent processing portions), and the chuck 13b is closed and then fixed. The side chuck 13a is opened, and the moving side spindle 11b moves forward by one pitch. Then, the fixed side chuck 13a is closed at the forward end position, and processing is performed with a rotary tool mounted on the upper and lower turrets 15a and 15b at a processing position intermediate between both chucks.

  By repeating this operation, the bar material is fed in the axial direction and processed to a predetermined location in sequence, and after necessary processing is performed, both sides of the cut portion of the bar material are gripped by both chucks 13a and 13b if necessary. In this state, the end mill attached to the upper turret 15a is moved in the Y-axis direction to cut the bar material. The processed bar material is pushed by the leading end of the bar material to be subsequently fed, passes through the through hole 12a of the fixed main spindle, and when the end of the bar material leaves the through hole 12a, the processed product receiving apparatus receives the processed bar material. It falls on the part 61. The dropped bar material is detected by the photoelectric sensor 64, pushed out by the horizontal pusher 63 to the inclined storage section 62, and sequentially stored.

  By repeating the above operation, the processing of a plurality of bar members mounted on the storage unit 3 of the bar member supply device is continuously performed.

The front view which shows an example of the processing apparatus of this invention 2 Schematic view of the main part of the main spindle facing lathe and part of the bar material supply device as seen from the direction perpendicular to the lathe bed surface Top view of bar material supply device Side view of bar material supply device The perspective view which shows the principal part of a bar material supply apparatus Side view showing positional relationship between main axis of lathe and main part of bar material supply device Explanatory drawing showing relationship between collet chuck claw and bar material Schematic perspective view showing the main part of the processed product receiving apparatus

Explanation of symbols

1 Processing machine (2 spindle facing lathe)
2 Bar material supply device 3 Bar material supply device storage unit 4 Bar material supply device feed unit 11a, 11b Spindle 12a, 12b Spindle through hole 13a, 13b Work gripping chuck 14 Bed surface 15a, 15b Rotating tool turret 31 (chain)
32 V-shaped receiving plate 41 Receiving member (receiving roller pair)
41 V-shaped receiving member (receiving roller pair)
41a 1st guide part (1st roller)
41b 2nd guide part (2nd roller)
44 Arm 45 Elevating table 51 Pusher Ca Spindle axis Cb Feed axis Ta to Tc Rotary tool W Bar material Wa Bar material stationary surface

Claims (6)

The plurality of receiving members (41) arranged at predetermined intervals in the longitudinal direction of the bar material (W) to be supplied, and the end of the bar material supported on the feed axis (Cb) by the plurality of receiving members are limited. In a bar material supply device to a processing machine provided with a pusher (51) for pushing the bar material in the longitudinal direction by pushing with a strong force,
Each of the receiving members includes a first guide part (41a) parallel to the stationary surface (Wa) formed on the peripheral surface of the bar member, and a second guide part (41b) intersecting with the first guide part. V-shaped receiving members (41) provided, and each V-shaped receiving member is provided at the tip of a plurality of arms (44) extending in a direction perpendicular to the longitudinal direction from a vertically moving table (45) elongated in the longitudinal direction of the bar material. And
The plurality of V-shaped receiving members are moved up and down and moved laterally synchronously by moving the moving table up and down and laterally, and the center of the cross section of the bar material supported by the V-shaped receiving member is positioned on the feed axis (Cb). It is characterized by
Equipment for supplying irregular cross-section bars to processing machines. A bar material supply device according to claim 1 and a processing machine (1).
At the position between the two workpiece gripping chucks (13a, 13b) and the two workpiece gripping chucks arranged opposite to each other on the feed axis (Cb) of the bar material (W) fed from the feeding device (2). Two rotating tool turrets (15a, 15b) arranged at positions facing each other across the feed axis (Cb),
The workpiece gripping chuck is provided with through-holes (12a, 12b) through which the bar material passes, and is fixed at least around the axis (Ca) coincident with the feed axis (Cb), at least on the supply device side (13b) Is a chuck whose movement position is controlled in the Z-axis direction, which is the feed axis direction,
The rotary tool turret is a turret whose movement position is controlled in the X-axis direction inclined with respect to the horizontal plane in a direction close to and away from the Z-axis direction and the feed axis.
The first guide portion (41a) of the supply device is provided in a direction orthogonal to the X-axis direction,
Processing equipment for irregular shaped bar material.   The processing apparatus according to claim 2, wherein at least one of the two rotary tool turrets (15a, 15b) is a turret whose movement position is controlled also in the Y-axis direction orthogonal to the Z-axis direction and the X-axis direction.   The processing machine (1) includes a slant-shaped bed surface (14) inclined in a direction in which the bed surface is lowered on the operator side, and a rotary tool turret (15a, 15b) disposed above and below the spindle axis (Ca). The machining apparatus according to claim 2, wherein the machining apparatus is a two-spindle opposed lathe.   A storage section (3) comprising a plurality of circular bodies (chains) (31) that support a bar material W by a plurality of V-shaped receiving plates (32) and run intermittently in a direction perpendicular to the longitudinal direction of the bar material. 2), and the plurality of V-shaped receiving members (41) are disposed at a position between two adjacent circulating bodies and at a position on the terminal end side in the traveling direction of the circulating bodies. Bar material supply equipment.   The supply device (2) supports a bar material by a plurality of V-shaped receiving plates (32) and runs intermittently in a direction perpendicular to the longitudinal direction of the bar material (chain) (31) The plurality of V-shaped receiving members (41) are arranged at a position between two adjacent rotating bodies and at a position on the end side in the running direction of the rotating bodies, The processing apparatus according to claim 2, 3 or 4.

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