JP2017024085A - Metal processing device and clamp tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a metal processing device capable of easily holding a workpiece by a clamp tool or the clamp tool capable of easily holding the workpiece.SOLUTION: A metal processing device comprises a table 25 and a work set part 101 capable of setting a plurality of workpieces W, and comprises a clamp tool 100 having a pull-stud bolt 103 on one end side and providing a push piece 105 for pressing down the workpiece W in an unfastened state in an installation shaft part 104 on the other end side, at least a pair of temporary placing tables 110 for temporarily placing the clamp tool 100, a chuck mechanism 30 for holding one end side of the clamp tool 100, a core push table 40 for providing a center member 43 for pressing the push piece 105 by being inserted into a center hole 105a of the push piece 105 and a metal processing tool 24. The device also comprises a processing mechanism for cutting or grinding the workpieces W in the longitudinal direction by using this metal processing tool 24.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a metal working apparatus and a clamp jig for forming a gear, for example.

  Various gears are provided on the chain block for lifting the load. In order to process such a gear, for example, a cutting device such as a horizontal milling machine may be used. In a horizontal milling machine, when machining gears, for example, a bar-shaped clamping jig called an arbor as shown in Patent Document 1 is inserted and set from one end so that a plurality of workpieces processed into a ring shape in the previous process are stacked. To do. And after setting a some workpiece | work, the press member called a pushing piece is located in the other end side, and the press member is fastened and fixed with a nut.

  Further, a pull stat bolt is attached to one end of the clamp jig, and the pull stud bolt is clamped to the chuck mechanism of the horizontal milling machine. On the other hand, the other end side of the clamp jig is held by the core push stand. In this state, the gear cutter of the horizontal milling machine rotates while the gear cutter slides relative to the workpiece, whereby the workpiece is cut and thereby the gear can be machined.

Japanese Patent No. 4889077

  By the way, in the above-described configuration, the work is manually set on the clamp jig, and then the nut is manually tightened with the push piece interposed. Further, even after the processing of the workpiece is finished, the nut is manually loosened, and then the processed workpiece is taken out. For this reason, the work of the workpiece involves tightening or loosening the nut, and much labor is required.

  The present invention has been made based on the above circumstances, and can reduce the number of man-hours when holding a workpiece, or a metal processing apparatus capable of reducing the number of steps when holding a workpiece on a clamping jig. An object is to provide a clamp jig.

  In order to solve the above-mentioned problem, according to a first aspect of the present invention, there is provided a metal processing apparatus for metal processing a ring-shaped workpiece, and a table having a mounting surface, A work set part that can set a work, has a pull stud bolt on one end side of the work set part, and is pushed into the mounting shaft part on the other end side of the work set part in a non-fastened state to hold the work piece. A clamp jig provided with a push piece having a center hole that has a center coincident with the center of rotation, and at least a pair of temporary jigs that are placed on the placement surface and on which the clamp jig is temporarily placed By inserting the pedestal and the tip side of the pull stud bolt, the chuck mechanism that holds one end of the clamp jig and the drive means are connected to the push piece from the other end of the clamp jig. And a core pushing table provided with a center member that is inserted into the center hole of the pushing piece and presses the pushing piece, and a metal working tool, and the workpiece is cut or cut along the longitudinal direction using the metal working tool. There is provided a metal processing apparatus comprising a processing mechanism for grinding.

  In addition, according to another aspect of the present invention, in the above-described invention, the temporary placement table on one end side of the pair of temporary placement tables is configured such that when the pull stud bolt is held by the chuck mechanism, the one end side of the clamp jig is When the center member is inserted into the center hole and the pushing piece is pressed, the other end side of the clamping jig is moved by the second distance. It is preferable that the height is raised.

  Furthermore, in another aspect of the present invention, in the above-described invention, the first distance and the second distance are preferably greater than 0 and 1.0 mm or less.

  According to another aspect of the present invention, in the above-described invention, the temporary table is preferably provided so as to be movable on the mounting surface of the table.

  According to another aspect of the present invention, in the above-described invention, the operation of the chuck mechanism and the operation of the driving means for driving the core pusher are controlled by the control means, and the control means operates the chuck mechanism. After holding the pull stud bolt, it is preferable to actuate the driving means of the core push stand and press the push piece with the center member.

  Further, according to the second aspect of the present invention, there is a clamp jig used when metal processing a ring-shaped workpiece, and a workpiece setting portion capable of setting a plurality of workpieces along the longitudinal direction; A pull stud bolt that is provided on one end side of the work set portion and held by a chuck mechanism, an attachment shaft portion provided on the other end side of the work set portion, and a non-attachment to the attachment shaft portion. A clamp comprising: a center hole having a center that coincides with the center of rotation, and a pushing piece into which the center member of the core push stand is inserted into the center hole. A jig is provided.

  According to the present invention, it is possible to reduce the number of man-hours when holding the workpiece on the metal processing apparatus.

It is a side view showing the whole cutting device composition concerning an embodiment of the present invention. It is a front view which shows the structure of the cutting apparatus shown in FIG. It is a block diagram which shows the structure of the control relationship of the cutting apparatus shown in FIG. It is a side view which shows the structure of the clamp jig | tool which concerns on one embodiment of this invention. It is a side view which shows the state which set the workpiece | work to the clamp jig | tool of FIG. It is a sectional side view which shows the structure of the pushing piece attached to the clamp jig | tool of FIG. It is a front view which shows the structure of the temporary placement stand set to the table of the cutting apparatus of FIG. It is a bottom view which shows the structure of the temporary placing stand shown in FIG.

  Hereinafter, a cutting apparatus as a metal processing apparatus according to an embodiment of the present invention will be described with reference to the drawings. In the following description, an XYZ orthogonal coordinate system will be used as necessary. In the XYZ orthogonal coordinate system, the Z direction indicates the longitudinal direction of the table, the Z1 side indicates the right side in FIG. 1, and the Z2 side indicates the opposite side. The width direction of the table is the X direction, the X1 side indicates the right side in FIG. 2, and the X2 side indicates the opposite side. The Y direction refers to the vertical direction, the Y1 side refers to the upper side, and the Y2 side refers to the lower side opposite thereto.

<1. Overall configuration of cutting device>
FIG. 1 is a side view showing the overall configuration of the cutting apparatus 10. FIG. 2 is a front view showing the configuration of the cutting apparatus 10. FIG. 3 is a block diagram showing a control-related configuration of the cutting apparatus 10. Note that FIG. 1 shows the cutting device 10 omitted as appropriate, and FIG. 2 also shows the portion of the cutting device 10 that is different from FIG.

  The cutting apparatus 10 of the present embodiment is a bed-type horizontal milling machine capable of manual or numerical control, for example, and includes a bed 20, a column 21, a head 22, a main shaft 23, a gear cutter 24, and a table 25. The chuck mechanism 30, the core pressing table 40, the control unit 50, the clamping jig 100, and the temporary placing table 110 are the main components.

  The clamp jig 100 and the temporary placing table 110 are constituent elements of the cutting apparatus 10, but may be constituent elements different from the constituent elements of the cutting apparatus 10. Hereinafter, each part will be described.

  The bed 20 is a part that is installed at an installation site such as a floor, and the column 21 is a part that stands upward from the bed 20. The head 22 is attached to the column 21, and a main shaft 23 and a driving device (not shown) for driving the main shaft 23 are attached.

  Here, the column 21 is provided with a ball screw (not shown), and the guide portion of the head 22 is fitted into the ball screw. In order to rotate the ball screw, a vertical drive motor 21a as shown in FIG. 3 is provided. The head 22 can be moved up and down by driving the vertical drive motor 21a.

  In the present embodiment, the column 21 is movable in the X direction. In order to enable such movement, the bed 20 is provided with a ball screw (not shown), and a guide portion of the column 21 is fitted into the ball screw. Further, in order to rotate the ball screw, a column drive motor 21b as shown in FIG. 3 is provided. The column 21 is movable in the X direction by driving the column drive motor 21b. The table 25 may be movable in the X direction without adopting such a configuration.

  In the present embodiment, the main shaft 23 is provided horizontally with respect to the table 25. The main shaft 23 is a shaft-like portion to which a gear cutter 24 for cutting is attached, and is rotated by driving a main shaft driving motor 23a as shown in FIG. As a result, the ring-shaped workpiece W can be cut to produce a gear.

  The spindle 23, the gear cutter 24, the head 22, and the like constitute a machining mechanism for cutting the workpiece W. The gear cutter 24 corresponds to a metal working tool.

  The table 25 is attached to the upper part of the bed 20 and is movable in the Z direction with respect to the bed 20. Therefore, the bed 20 is provided with a ball screw (not shown), and the guide portion of the table 25 is fitted into the ball screw. Further, in order to rotate the ball screw, a table driving motor 25a as shown in FIG. 3 is provided. The table 25 is movable in the Z direction by driving the table drive motor 25a.

  The chuck mechanism 30 is a portion that holds the pull stud bolt 103 of the clamp jig 100. Further, the chuck mechanism 30 of the present embodiment has an indexing table function, and can automatically rotate by a certain angle. Therefore, the chuck mechanism 30 is provided with a rotation motor 31 and a gear mechanism, and the work W can be rotated by a predetermined angle by the operation of the rotation motor 31.

  The core push stand 40 is provided with a guide portion 41 protruding downward, and the guide portion 41 is fitted into a guide groove (not shown) extending in the longitudinal direction (Z direction) of the table 25. Thereby, the core push stand 40 is movable along the longitudinal direction (Z direction). In the present embodiment, the tailstock 40 is automatically movable, and in order to enable such movement, a ball screw (not shown) or a ball screw for rotating the ball screw is not provided. A motor or the like is provided on the table 25 side. Further, the core push table 40 is provided with a fitting portion that fits with the ball screw. Therefore, when the ball screw is rotated by driving the slide motor 42, the core press base 40 is movable in the longitudinal direction (Z direction). The slide motor 42 corresponds to drive means.

  The core push table 40 is provided with a point-shaped center member 43. The center member 43 is a portion that fits into a center hole 105a of the push piece 105, which will be described later, whereby the core push stand 40 can push the push piece 105 firmly.

<2. About clamp jig>
Next, the clamp jig will be described. FIG. 4 is a side view showing the configuration of the clamp jig 100. FIG. 5 is a side view showing a state in which the workpiece W is set on the clamp jig 100. As shown in FIGS. 4 and 5, the clamp jig 100 includes a work setting unit 101, a chuck holding unit 102, a pull stud bolt 103, a mounting shaft unit 104, and a push piece 105. The work setting unit 101 is a shaft-like part for setting a plurality of ring-shaped works W. For example, the workpiece setting unit 101 can set several tens of workpieces W in close contact with each other.

  When a small number of workpieces W are set on the workpiece setting unit 101, it is possible to set spacers on the workpiece setting unit 101.

  Further, the chuck holding portion 102 is a portion held by the chuck mechanism 30 described above, and includes a tapered portion 102a, a pulley-like portion 102b, and a workpiece locking portion 102c. Among these, the taper part 102a is a part which has the outer peripheral surface inclined so that it may become a small diameter as it goes to the front end side (Z1 side). Further, the pulley-like portion 102b has a pulley-like appearance and has a recess 102b2 surrounded by two annular projections 102b1. When another member is positioned in the recess 102b2, the movement of the clamp jig 100 is restricted, and thereby the clamp jig 100 is held.

  Moreover, the workpiece | work latching | locking part 102c is a part which is larger diameter than the work set part 101, but is smaller diameter than the pulley-shaped part 102b. The workpiece locking portion 102c is a portion that is placed on a temporary placement table 110 described later. In addition, it is good also as a structure which abbreviate | omits the workpiece | work latching | locking part 102c, and to mount the cyclic | annular convex part 102b1 of the pulley-shaped part 102b on the temporary placement stand 110 instead.

  The chuck holder 102 is provided with a screw hole (not shown). A male screw portion (not shown) of the pull stud bolt 103 is screwed into the screw hole. Thereby, the pull stud bolt 103 is attached to the chuck holding portion 102. The chuck holding portion 102 is a portion fixed by the chuck mechanism 30 described above. When fixing, first, the pull stud bolt 103 is pulled by a pulling mechanism (not shown) of the chuck mechanism 30, and then the outer peripheral surface of the pulley-like portion 102 b is brought into contact with the concave portion of the chuck mechanism 30 to perform positioning. .

  The attachment shaft portion 104 is provided on the other end side (Z2 side) of the work set portion 101. The attachment shaft portion 104 is inserted into the insertion hole 105 b of the push piece 105. Thereby, the push piece 105 is attached to the attachment shaft portion 104. At this time, the push piece 105 comes into contact with the workpiece W located on the most other end side (Z2 side).

  FIG. 6 is a side sectional view showing the configuration of the push piece 105. As shown in FIG. 6, the push piece 105 is formed by cutting a center hole 105a and an insertion hole 105b on a cylindrical member. The center hole 105a is located on the other end side (Z2 side) of the push piece 105 in the configuration shown in FIGS. The center hole 105a is a portion into which the above-described point-shaped center member 43 is inserted, and positioning of the clamp jig 100 and clamping of the clamp jig 100 are performed by inserting the center member 43. Further, the center of the center hole 105 a is provided so as to coincide with the rotation center of the push piece 105, and is provided so as to coincide with the rotation center of the work W set in the work setting unit 101.

  The insertion hole 105b is a portion into which the above-described mounting shaft portion 104 is inserted. However, in order to suppress the backlash of both, the diameter of the insertion hole 105b has a dimensional difference below the fitting tolerance used as clearance fitting with respect to the diameter of the attachment shaft part 104, for example.

  Further, a friction surface 105 c is provided on the end surface of the push piece 105 on one end side. The friction surface 105c is a portion that comes into contact with the workpiece W located on the other end side, and is a portion that applies a friction force to the workpiece W at that time. The friction surface 105c may be knurled, for example, or may be in a state in which ring-shaped unevenness is not removed during cutting with a lathe. In addition, the friction surface 105c may be configured to be planar and have no unevenness.

  As shown in FIG. 1, the push piece 105 is placed on a temporary placement table 110 described later. Therefore, the outer diameter of the push piece 105 is set to be equal to the outer diameter of the workpiece locking portion 102c. The push piece 105 is a component of the clamp jig 100. However, the push piece 105 may be a component different from the clamp jig 100.

  Further, the control unit 50 is a part that controls each operating part of the cutting apparatus 10, and includes a vertical drive motor 21a, a column drive motor 21b, a spindle drive motor 23a, and a table drive. There are a motor 25a, a rotary motor 31, and a slide motor. The control unit 50 is, for example, a microcomputer including a CPU and a memory storing a control program and data, and can appropriately control the operation of each drive part. The control unit 50 corresponds to a control unit.

<3. About temporary table>
Next, the temporary placement table will be described. FIG. 7 is a front view showing the configuration of the temporary placement table 110. FIG. 8 is a bottom view showing the configuration of the temporary placement table 110. As shown in FIGS. 7 and 8, the temporary placement table 110 is a part for temporarily placing the clamp jig 100, and is placed on the table 25 of the cutting apparatus 10 as shown in FIG. Placed. Further, in the configuration shown in FIG. 1, a pair of temporary placement tables 110 are provided on the table 25. As shown in FIGS. 7 and 8, the temporary placement table 110 has a configuration in which a placement recess 111 is provided for a metal block-like or thick plate-like member. The placement recess 111 is a portion for placing the workpiece locking portion 102 c and the push piece 105 of the clamp jig 100. The temporary table 110 in the present embodiment can be easily slid by sliding in the horizontal plane (in the ZX plane) along the mounting surface of the table 25, but it cannot be moved. It is good also as a fixed thing.

  Here, when the clamp jig 100 is placed in the placement recess 111, the dimensional relationship is as follows. That is, when the chuck mechanism 30 pulls and holds the pull stud bolt 103 in a state where the clamp jig 100 is placed in the placement recess 111, the workpiece locking portion 102 c of the clamp jig 100 on one end side is placed on the placement recess 111. Floats from the outer wall surface by a first distance. After that, when the core pushing table 40 moves toward one end side and the center member 43 is inserted into the center hole 105a in a pressed state, the pushing piece 105 is placed on the outer wall surface of the mounting recess 111 of the temporary placing table 110 on the other end side. From the second distance.

  It should be noted that the lifting dimension (the dimension of the first distance and the second distance) can be, for example, greater than 0 mm and 1.0 mm or less. This is because if it exceeds 1.0 mm, it becomes difficult to pull the pull stud bolt 103 smoothly. The first distance and the second distance may be the same distance or different distances.

<4. Processing method for forming gears from workpiece W>
Next, a machining method for machining the workpiece W to form various gears will be described. First, the workpiece W is set on the clamp jig 100. At this time, it is assumed that the push piece 105 is detached from the attachment shaft portion 104. And the workpiece | work set part 101 is inserted in the ring hole of the ring-shaped workpiece | work W, and it is set as the state with which several workpiece | work W contact | adhered mutually.

  Next, the attachment shaft portion 104 is inserted into the insertion hole 105 b of the push piece 105. At this time, the push piece 105 is not fixed by a screw or the like. Therefore, the push piece 105 is provided movably with respect to the attachment shaft portion 104. That is, the push piece 105 is attached to the attachment shaft portion 104 in an unfixed state.

  In addition to setting the workpiece W on the clamp jig 100, the temporary placement table 110 is previously set at a predetermined position with respect to the table 25 of the cutting apparatus 10. Then, after the workpiece W is set on the clamp jig 100, the clamp jig 100 is placed on the placement recess 111 of the temporary placement table 110.

  Next, the pull stud bolt 103 side of the clamp jig 100 is pulled by a pulling mechanism (not shown) of the chuck mechanism 30. At this time, by inserting a part of the pull stud bolt 103 into an insertion portion (not shown) of the chuck mechanism 30, the pull stud bolt 103 is drawn by the chuck mechanism 30 and one end side of the clamp jig 100 is chucked. . Further, when one end side of the clamp jig 100 is chucked, the clamp jig 100 on the one end side is lifted from the outer wall surface of the mounting recess 111.

  Subsequently, the control unit 50 operates the slide motor 42 of the core press base 40 to slide the core press base 40 toward one end side (Z1 side). Then, the center member 43 is inserted into the center hole 105a of the push piece 105, and the center member 43 pushes the push piece 105 in this state. Thereby, the center member 43 firmly pushes the push piece 105, and the push piece 105 pushes the work W by the push. For this reason, even if the pushing piece 105 is not fixed by a screw or the like, the workpiece W can be fixed by clamping. As an example, the center member 43 may press the pushing piece 105 with a pressing force of about 400 kg.

  Thereafter, the workpiece W is cut. At this time, the table drive motor 25a is driven to adjust the position of the table 25 in the Z direction, and the column drive motor 21b is driven to adjust the position of the column 21 in the X direction. In this state, the main shaft driving motor 23a is driven to rotate the main shaft 23, whereby the gear cutter 24 is rotated. In this state, the vertical drive motor 21a is driven to bring the gear cutter 24 close to the workpiece W, and the table drive motor 25a is further driven to move the table 25, thereby forming a groove that penetrates a plurality of workpieces in the Z direction. Is done.

  Thereafter, the rotary motor 31 of the chuck mechanism 30 is operated to rotate the workpiece W by an amount corresponding to the gear pitch. Thereafter, the table drive motor 25a is driven again to adjust the position of the table 25 in the Z direction, and the same work W is cut repeatedly. Thereby, a plurality of workpieces W can be cut to form a gear.

<5. About effect>
According to the cutting apparatus 10 and the clamp jig 100 configured as described above, the clamp jig 100 includes the work set unit 101, and a plurality of works W can be set on the work set unit 101. Further, a pull stud bolt 103 that is chucked by the chuck mechanism 30 is provided, and further, a push piece 105 that is inserted into the attachment shaft portion 104 in an unfastened state is provided. The table 25 is provided with a pair of temporary placement tables 110 on which the clamp jig 100 is temporarily placed. Then, one end side of the clamp jig is held by the chuck mechanism 30 and the center member 43 is inserted into the center hole 105a of the push piece 105, whereby the clamp jig 100 is held.

  By adopting such a configuration, after setting a plurality of workpieces W on the clamp jig 100, an operation of tightening with a nut so that the push piece 105 is not removed becomes unnecessary. Therefore, the man-hour required for fastening the nut can be reduced, and the work when holding the plurality of workpieces W on the clamp jig 100 is facilitated. Further, as described above, the work of tightening with a nut is not necessary, and therefore, the work of setting the heavy clamp jig 100 (arbor) holding a plurality of workpieces W on the cutting apparatus 10 becomes easy.

  Further, as described above, since the push piece 105 is not tightened by the nut, the push piece 105 can be easily detached from the mounting shaft portion 104 after the cutting of the plurality of workpieces W is completed. Therefore, it is possible to reduce the trouble of removing the workpiece W after processing from the clamp jig 100.

  Further, in the present embodiment, when the pull stud bolt 103 is pulled in by the chuck mechanism 30 and one end side of the clamp jig 100 is held, the clamp jig is only a first distance from the temporary placement table 110 on the one end side. It is provided in a positional relationship that rises. Further, when the center member 43 is inserted into the center hole 105a and the pushing piece 105 is pressed, the other end side of the clamp jig 100 is provided in a positional relationship in which the other end side is lifted by a second distance. ing. Therefore, the workpiece W can be in a state where it does not come into contact with other members other than the clamp jig 100. Therefore, even if the workpiece W is cut using the gear cutter 24 while rotating the workpiece W by the amount corresponding to the gear pitch, it is possible to prevent the workpiece W from being displaced. Further, when the clamp jig 100 is clamped between the chuck mechanism 30 and the core press base 40, the position of the clamp jig 100 is determined in the vertical direction (Y direction). Therefore, cutting for forming the gear can be performed with the workpiece W accurately positioned in the vertical direction.

  Furthermore, in the present embodiment, the first distance and the second distance described above are greater than 0 and 1.0 mm or less. Therefore, when the pull stud bolt 103 is pulled by the chuck mechanism 30, the pull stud bolt 103 can be pulled smoothly with a small positional deviation.

  In the present embodiment, the temporary placement table 110 is provided so as to be movable on the placement surface of the table 25. Therefore, it is possible to flexibly correspond to the clamp jig 100 having various lengths. In addition, since the clamping jig 100 can be set and the clamping jig 100 can be removed by sliding the temporary placement table 110 on the mounting surface, the heavy clamping jig holding a plurality of workpieces W can be removed. The handling of the tool 100 (arbor) becomes easy.

  In the present embodiment, the operation of the chuck mechanism 30 and the operation of the slide motor 42 that drives the core pusher 40 are controlled by the control unit 50. In addition, the control unit 50 operates the chuck mechanism 30 to hold the pull stud bolt 103, then operates the slide motor 42 of the core press base 40, and presses the push piece 105 with the center member 43. Yes. For this reason, the both ends of the clamp jig 100 can be reliably held. Therefore, even if the push piece 105 is not fastened with a bolt, a nut, or the like, a plurality of workpieces W can be held, and a gear can be manufactured by cutting the workpieces W.

<15. Modification>
As mentioned above, although each embodiment of this invention was described, this invention can be variously deformed besides this. This will be described below.

  In the above-described embodiment, the clamp jig 100 is placed on the placement recesses 111 of the pair of temporary placement stands 110 by the workpiece locking portion 102 c and the push piece 105. However, a configuration in which the workpiece W is placed in the placement recess 111 of the clamp jig 100 may be employed.

  In the above-described embodiment, the pair of temporary placement tables 110 are provided with the mounting recesses 111. However, the pair of temporary placement tables 110 may be provided with a protruding portion that prevents the clamp jig 100 from moving, thereby holding the clamp jig 100.

  In the above-described embodiment, a pair of temporary placement stands 110 are provided, but a configuration in which three or more temporary placement stands 110 are provided may be employed.

  In the above-described embodiment, the cutting device 10 is, for example, a bed-type horizontal milling machine. However, the cutting apparatus 10 may be a knee-shaped horizontal milling machine. Further, the cutting apparatus 10 applies the present invention to a bed type vertical milling machine, a knee type vertical milling machine, a gate type milling machine, a shaper, a planer, a vertical machine, a machining center and other various machine tools. Is possible.

  In the above-described embodiment, the cutting apparatus 10 as a metal processing apparatus has been described. However, the metal processing apparatus is not limited to the cutting apparatus 10. For example, the present invention can be applied to a metal processing apparatus other than the cutting apparatus, such as a grinding apparatus for grinding a workpiece. In the case of a grinding apparatus, the processing mechanism performs a grinding process.

  In the above-described embodiment, the work W is disclosed as being directly fixed by the push piece 105. However, a member for adjusting a space such as a collar may be appropriately disposed between the workpiece W and the push piece 105.

DESCRIPTION OF SYMBOLS 10 ... Cutting apparatus (corresponding to a metal processing apparatus), 20 ... Bed, 21 ... Column, 21a ... Vertical drive motor, 21b ... Column drive motor, 22 ... Head (corresponding to a part of the processing mechanism), 23 ... Main shaft ( Corresponding to a part of the machining mechanism), 23a ... Spindle drive motor, 24 ... Gear cutter (part of the machining mechanism, corresponding to metal working tool), 25 ... Table, 25a ... Table drive motor, 30 ... Chuck mechanism, 31 ... Rotation Motor: 40 ... Core push stand, 42 ... Slide motor (corresponding to driving means), 43 ... Center member, 50 ... Control part (corresponding to control means), 100 ... Clamp jig, 101 ... Work set part, 102 ... Chuck Holding part, 102a ... tapered part, 102b ... pulley-like part, 102b1 ... annular convex part, 102b2 ... recessed part, 102c ... work locking part, 103 ... pull stud bolt, 04 ... mounting shaft portion, 105 ... pressing piece, 105a ... center hole, 105b ... insertion hole, 105c ... friction surface 110 ... temporary placement table, 111 ... loading recess, W ... workpiece

Claims (6)

A metal processing apparatus for metal processing a ring-shaped workpiece,
A table having a mounting surface;
A work set part capable of setting a plurality of works along the longitudinal direction is provided, a pull stud bolt is provided on one end side of the work set part, and is not fastened to a mounting shaft part on the other end side of the work set part. A clamping jig provided with a pressing piece that is inserted in a state and presses the workpiece and has a center hole having a center that coincides with the center of rotation;
And at least a pair of temporary placement tables on which the clamping jig is temporarily placed,
A chuck mechanism for holding one end side of the clamp jig by inserting the tip end side of the pull stud bolt;
A core push stand provided with a center member that is brought into and out of contact with the push piece from the other end side of the clamp jig by driving of the drive means and is inserted into a center hole of the push piece to push the push piece. When,
A machining mechanism comprising a metal working tool, and cutting or grinding the workpiece along the longitudinal direction using the metal working tool;
A metal processing apparatus comprising: When the pull stud bolt is held by the chuck mechanism, one end side of the clamp jig is lifted by a first distance when the temporary placing table on one end side of the pair of temporary placing tables is held.
When the center member is inserted into the center hole and the push piece is pressed, the other end side of the clamp jig is a second distance. It ’s just a height that rises,
The metal processing apparatus according to claim 1. The first distance and the second distance are greater than 0 and 1.0 mm or less.
The metal processing apparatus according to claim 2. The temporary placement table is provided to be movable on the placement surface of the table.
The metal processing apparatus of any one of Claim 1 to 3 characterized by the above-mentioned. The operation of the chuck mechanism and the operation of the drive means for driving the core pusher are controlled by a control means,
The control means operates the chuck mechanism to hold the pull stud bolt, and then operates the driving means of the core push stand to press the push piece with the center member.
The metal processing apparatus according to any one of claims 1 to 4, characterized in that A clamping jig used when metal ring-shaped workpieces,
A work setting unit capable of setting a plurality of the works along the longitudinal direction;
A pull stud bolt that is provided on one end side of the work set portion and held by a chuck mechanism;
A mounting shaft provided on the other end of the work set part;
A pressing piece that is inserted into the mounting shaft portion in a non-fastened state to hold the workpiece and has a center hole having a center that coincides with the center of rotation, and a center piece of a core push stand is inserted into the center hole,
A clamping jig comprising:

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