JP2014226687A - Laser punch compound machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laser punch compound machine capable of removing a burr-like projection generated in a lower surface edge part along a thermal cutting processing part of a plate material by thermal cutting processing, by simple means without requiring labor.SOLUTION: The laser punch compound machine is formed by combining a plate material feed mechanism, a laser processing part and a punch processing part. The laser processing part thermally cutting-processes the plate material by irradiating a laser beam to the plate material sent by the plate material feed mechanism. The punch processing part comprises an upper side tool support capable of installing a plurality of upper dies and a lower side tool support capable of installing a plurality of lower dies corresponding to the upper dies, and executes punch processing on the plate material by lifting the upper dies in a punch position. Edge processing tools 21 and 22 are provided for removing the projection 70 generated on the edge of the plate material by thermal cutting processing by the laser processing part, instead of at least one set among a plurality of sets of upper dies and lower dies provided in the upper-lower tool supports.

Description

  The present invention relates to a laser / punch combined machine capable of performing both thermal cutting processing using a laser beam and punch processing using upper and lower molds on a plate material.

  When a plate material made of steel is thermally cut by laser light, slag generated at the time of processing is solidified at the surface edge portion, particularly the lower surface edge portion C, along the thermally cut portion A of the plate material W as shown in FIG. A burr-like protrusion 70 (generally referred to as dross) is generated. The reason why the protrusion 70 is formed at the lower surface edge C is that the metal melted by the inert gas from above is blown off during the thermal cutting process, so that the slag is likely to accumulate on the lower side. In addition, as shown in FIG. 16, when the sheet S is pasted on the lower surface of the plate material W, a projection 71 is formed which is a mixture of the slag and the oxide of the sheet S. The sheet S is pasted so as not to damage the lower surface of the plate material W, and is made of, for example, a synthetic resin. The protrusion 71 generated on the sheet material W with the sheet is larger and more prominent than the protrusion 70 generated on the sheet material W without the sheet. In FIGS. 15 and 16, the protrusions 70 and 71 are exaggerated and enlarged.

  As described above, the burr-like protrusion 71 generated on the sheet material W with the sheet is large and conspicuous, and also becomes an obstacle when another member is stacked. Therefore, when the sheet material W with a sheet is subjected to thermal cutting, the sheet S is peeled off from the sheet material W to prevent the generation of the protrusion 71. The protrusions 70 formed on the sheet material W without a sheet are not so noticeable, but still need to be removed depending on the product. In general, the removal of the protrusions 70 generated in the sheet material W without a sheet has been performed by manual sanding in a subsequent process.

  In order to automatically remove the protrusions 70 and 71 generated by the thermal cutting process, it has been proposed to provide an apparatus for removing deposits that can remove the protrusions 70 and 71 in the laser / punch combined machine ( Patent Document 1).

  Further, with respect to the removal of burrs generated on a plate material by punching with a punch press, a deburring tool that is attached to a tool support of a punch press and used has been proposed (for example, Patent Document 2).

JP 2001-129681 A Japanese Patent No. 4916104

  Since the sheet S is pasted when the plate material W is punched by a punch press or the like, the sheet S is peeled off from the plate material W during the thermal cutting process as described above for the purpose of preventing the formation of the protrusion 71. When the punching is performed in a later process, it is necessary to re-attach the sheet S again, which is wasteful. In particular, in the case of a laser / punch combined machine that performs both thermal cutting processing and punching processing using laser light, the sheet material W is once lowered from the table for conveying the plate material, and the sheet S is peeled off from the plate material W. It is necessary to lower the plate material W from the table again and re-attach the sheet S from the plate material W, which is more wasteful.

  The removal of the protrusions 70 and 71 generated by the thermal cutting process by manual sanding is troublesome and increases the manufacturing cost.

As in Patent Document 1, it is necessary to separately install a large deposit removing device in the laser / punch combined machine, which increases the production cost of the machine.
Further, the deburring tool of Patent Document 2 has various excellent advantages. However, the deburring tool is equipped with a punch press to remove burrs by punching, and is expected to be applied to protrusions generated by thermal cutting. Absent.

SUMMARY OF THE INVENTION An object of the present invention is to provide a laser / punch combined machine capable of removing burr-like protrusions generated on a lower edge portion along a heat-cutting portion of a plate material by heat-cutting with simple means and without trouble. That is.
Another object of the present invention is to continuously and efficiently remove the burr-like protrusions.
Still another object of the present invention is to make it possible to remove both the protrusions generated by the thermal cutting process and the protrusions generated by the punching process.
Still another object of the present invention is to use a simple means and a simple method to remove the burr-like protrusions generated on the lower edge of the plate material along the thermal cutting portion of the plate material by thermal cutting processing even for the plate material with a sheet. It is to be removed.

  The laser / punch combined machine of the present invention includes a plate material feeding mechanism capable of feeding a plate material in the front / rear and left / right directions, and a laser processing unit for irradiating the plate material fed by the plate material feeding mechanism with a laser beam to thermally cut the plate material. An upper tool support capable of installing a plurality of upper dies, a lower tool support capable of installing a plurality of lower dies corresponding to the upper mold, the upper tool support and the lower tool support Punch processing provided with mold indexing means for indexing upper and lower molds to predetermined punch positions, and punching means for punching a plate material by raising and lowering the upper mold by a ram at the punch positions Combined with the part. Instead of at least one of a plurality of sets of the upper mold and the lower mold provided on the upper tool support and the lower tool support, on the edge of the plate material by thermal cutting by the laser processing unit An edge processing tool for removing the generated protrusion is provided.

According to this configuration, after performing the thermal cutting process on the plate material by the laser processing unit, the burr shape generated at the lower edge along the thermal cutting process part of the plate material with the edge processing tool while feeding the plate material by the plate material feeding mechanism Remove the protrusions. The term “removal” as used herein means that at least the protruding portion of the burr-like protrusion with respect to the lower surface of the plate material is reduced or eliminated. Since the edge processing tool is provided on the upper tool support and the lower tool support of the punched portion in place of the mold, it is not necessary to provide a large-scale device for removing the burr-like protrusions. In this way, with the new and dramatic idea of removing the protrusion generated by the thermal cutting process with an edge processing tool installed in place of the mold in the laser punch composite machine, the protrusion generated by the thermal cutting process is It can be easily removed with a simple structure and without the trouble of replacing the plate material.
In addition, the said heat cutting process part points out the slit-shaped part formed by removing the metal material by the heat cutting process. For example, when the both side parts separated by the heat cutting part are separated into the product part from the material part, the heat cutting part does not exist in the form of a slit, and the slit shape from the end face of the plate material and this end face A virtual space sandwiched between the surfaces separated by the width of the portion becomes a thermal cutting portion.

  In the present invention, the edge processing tool is supported by upper and lower ball holding members disposed on the upper tool support and the lower tool support so as to face each other, and rotatably supported by these ball holding members. The plate material feeding mechanism having upper and lower balls protruding opposite to each other on the opposing surfaces of the ball support member, and sandwiching a thermal cutting processed portion processed by the laser processing portion of the plate material between the upper and lower balls Thus, the plate material may be sent along the thermal cutting portion, so that the lower edge along the thermal cutting portion of the plate material is pressed upward by the lower ball.

  According to this configuration, by feeding the plate material while sandwiching the plate material between the upper and lower balls, the burr-like projections generated on the lower edge of the plate material along the thermal cutting processed portion are crushed by the surface pressing by the lower ball. Removed. The upper and lower balls are rotatably supported by the ball support member and rotate freely in an arbitrary direction by feeding the plate material, so that the plate material can be smoothly fed. Therefore, the burr-like protrusions can be removed continuously and efficiently. In addition, a dedicated drive source for removing the protrusions is not required, and the protrusions generated by the thermal cutting process can be efficiently removed by effectively utilizing the features of the laser / punch combined machine.

In this invention, the said edge processing tool may remove the protrusion which arises in the edge of a board | plate material by the punch process by the said punch process part.
In this case, it is possible to remove both the protrusions generated by the thermal cutting process and the protrusions generated by the punching process.

In this invention, the said board | plate material may have the sheet | seat for damage prevention stuck on the surface which becomes the lower side at the time of a process.
In the case of such a plate with a sheet, a thermal cutting process creates a protrusion formed by mixing the slag and the oxide of the sheet at the lower edge along the thermal cutting part of the plate. It can be removed by simple means and without trouble.

  The laser / punch combined machine of the present invention includes a plate material feeding mechanism capable of feeding a plate material in the front / rear and left / right directions, and a laser processing unit for irradiating the plate material fed by the plate material feeding mechanism with a laser beam to thermally cut the plate material. An upper tool support capable of installing a plurality of upper dies, a lower tool support capable of installing a plurality of lower dies corresponding to the upper mold, the upper tool support and the lower tool support Punch processing provided with mold indexing means for indexing upper and lower molds to predetermined punch positions, and punching means for punching a plate material by raising and lowering the upper mold by a ram at the punch positions The laser processing instead of at least one of a plurality of sets of the upper die and the lower die provided on the upper tool support and the lower tool support. By thermal cutting process Because the edge processing tool that removes the protrusion generated on the edge of the material is provided, the burr-shaped protrusion generated on the bottom edge along the thermal cutting part of the plate material by thermal cutting can be done with simple means and without trouble Can be removed.

  The edge processing tools are opposed to each other, and upper and lower ball holding members respectively disposed on the upper tool support and the lower tool support, and rotatably supported by these ball holding members. The plate material is moved by the plate material feeding mechanism in a state where the upper and lower balls protrude opposite to each other on the opposite surface, and the thermal cutting processed portion processed by the laser processing portion of the plate material is sandwiched between the upper and lower balls. When the lower ball edge is pushed upward by the lower ball along the thermal cutting portion by the lower ball, the burr-like projections are continuously provided. Can be efficiently removed.

  In the case where the edge processing tool is to remove the protrusions generated at the edge of the plate material by punching by the punching unit, both the protrusions generated by the thermal cutting process and the protrusions generated by the punching process can be removed.

  In the laser / punch combined machine according to the present invention, the plate material is aligned with the thermal cutting portion of the plate material by thermal cutting even when a sheet for preventing scratches is attached to the lower surface during processing. It is possible to remove the burr-like protrusions generated at the lower surface edge by simple means and without trouble.

1 is a plan view showing a schematic configuration of a laser / punch combined machine according to an embodiment of the present invention; FIG. It is a side view which shows schematic structure of the laser punch composite machine. It is a longitudinal cross-sectional view which shows the installation state of a pair of upper and lower edge processing tools in the laser / punch composite machine. (A) is a perspective view of an upper edge processing tool, and (B) is a perspective view of a lower edge processing tool. (A) is a top view which shows schematic structure of the lower mold raising / lowering means which raises / lowers the lower edge processing tool, (B) is a front view which shows schematic structure of the lower mold raising / lowering means. It is sectional drawing which shows the state which lowered the lower edge processing tool by the lower metal mold raising / lowering means. (A) is a top view of the board | plate material in which a board | plate material part exists in the both sides of a thermal cutting process part, (B) is a top view of the board | plate material in which a board | plate material part exists only in one side of a thermal cutting process part. It is a top view which shows the edge processing operation | movement by the same pair of upper and lower edge processing tools. It is sectional drawing which shows an example of the edge processing operation | movement by the same pair of upper and lower edge processing tools. It is sectional drawing which shows another example of the edge processing operation by the same pair of upper and lower edge processing tools. It is sectional drawing which shows the different edge processing operation | movement by the same pair of upper and lower edge processing tools. It is explanatory drawing which shows the edge processing operation by a different edge processing tool. Furthermore, it is explanatory drawing which shows the edge processing operation by a different edge processing tool. Furthermore, it is explanatory drawing which shows the edge processing operation by a different edge processing tool. It is a figure which shows the cross-sectional shape of the peripheral part of the thermal cutting process part in a board | plate material. It is a figure which shows the cross-sectional shape of the peripheral part of the thermal cutting process part in the board | plate material with a sheet | seat.

  An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing a schematic configuration of the laser punch composite machine of this embodiment, and FIG. 2 is a side view thereof. The laser / punch composite machine 1 includes a laser processing unit 2 that performs thermal cutting on the plate material W at the laser processing position P1, and a punch processing unit 3 that performs punch processing on the plate material W at the punch position P2. It is configured by combining. The plate material W is made of a steel material, for example, a stainless material. The laser processing position P1 and the punch position P2 are fixed positions, and the plate material feed mechanism 4 feeds the plate material so that the processing position of the plate material W supported by the plate material table 5 comes to the laser processing position P1 or the punch processing position P2. .

  The laser processing section 2 is installed at a laser processing position P1 located at the tip of the upper frame section 7a in the side surface C-shaped frame 7, and has a laser head 11 that irradiates laser light downward, and a floor that is separated from the frame 7. A laser oscillator 12 installed on the surface, and a transmission path 13 for guiding laser light from the laser oscillator 12 to the laser head 11 are provided. For the transmission path 13, for example, a transmission optical fiber is used.

  In the punched portion 3, upper and lower turrets 15 and 16 as tool supports are supported on the upper frame portion 7a and the lower frame portion 7b of the frame 7 so as to be rotatable about vertical axes that are concentric with each other. In these upper and lower turrets 15, 16, a plurality of upper molds 17 and lower molds 18 for punching or molding and upper and lower edge processing tools 21, 22 are arranged side by side in the circumferential direction. Has been. The upper and lower edge processing tools 21 and 22 may be provided only at one place in the circumferential direction or several kinds may be provided at a plurality of places.

  The upper and lower turrets 15 and 16 are moved by the upper and lower mold indexing means 23 and 24 installed on the frame 7 so that the desired upper and lower molds 17 and 18 or the upper and lower edge processing tools 21 and 22 are respectively brought to the punch position P2. Be indexed. In the state where the upper and lower molds 17 and 18 or the upper and lower edge processing tools 21 and 22 are indexed to the punch position P2 by the mold indexing means 23 and 24, the upper mold 17 or the upper edge processing tool 21 is The ram 25 is driven up and down. The ram 25 is supported by the upper frame portion 7a of the frame 7 through a guide member (not shown) so as to be movable up and down, and is driven up and down by a punching means 26. The punching means 26 includes, for example, a servo motor 27 and a motion conversion mechanism 28 that converts the rotation thereof into a linear motion.

  The plate material feed mechanism 4 includes a cross slide 32 that moves left and right (X direction) on a carriage 31 that moves back and forth (Y direction), and a work holder 33 that holds an end of the plate material W is attached to the cross slide 32. It is. A guide rail 34 extending in the front-rear direction is provided below the carriage 31. The carriage 31 is moved along the guide rail 34 by a drive source for front-rear feed (not shown). Further, the cross slide 32 is moved left and right with respect to the carriage 31 by a left and right feeding drive source (not shown).

  FIG. 3 is a longitudinal sectional view of a pair of upper and lower edge processing tools 21 and 22 attached to the upper and lower turrets 15 and 16. The pair of upper and lower edge processing tools 21 and 22 are arranged on the upper and lower sides along the thermal cutting portion A (FIGS. 15 and 16) with respect to the plate material W that has been thermally cut by the laser processing portion 2 (FIGS. 1 and 2). It is used for edge processing of both edge portions B and C (FIGS. 15 and 16). Here, the heat-cutting part A indicates a slit-like part formed by removing the metal material by the heat-cutting process. The width a (FIG. 15) of the thermal cutting part A is about 0.2 to 0.3 mm.

As shown in the perspective view of FIG. 4A, the upper edge processing tool 21 can be moved up and down in a cylindrical tool body 40 having a guide hole 40a having an opening on the lower surface side, and the guide hole 40a of the tool body 40. The inserted guide member 41 includes a ball holding member 42 fixed to the guide member 41, and a downwardly projecting ball 43 that is rotatably supported by the ball holding member 42. The guide member 41 is prevented from coming off by a stopper 44 (FIG. 3) provided at the lower end of the tool body 40, and is urged downward by a coil spring 45 inserted into the guide hole 40a.
In this embodiment, the ball 43 is pressed against the upper surface edge B of the plate member W by the force of the coil spring 45, but the coil spring 45 is not necessarily provided, and the raising / lowering drive of the ram 25 (FIG. 2) is controlled. The ball 43 may be pressed against the edge B on the upper surface of the plate W. Further, the ball 43 may be pressed against the upper surface edge B of the plate material W by using the coil spring 45 and the ram 25 together.

  As shown in FIG. 3, the upper edge processing tool 21 is fitted in the mold holding hole 38 of the upper turret 15 so as to be movable up and down, and a key 46 provided on the outer periphery of the tool body 40 is inserted into the mold holding hole 38. By being engaged with the key groove 38 a, the rotation is prevented with respect to the upper turret 15. The upper edge processing tool 21 is coupled to the ram 25 via a T-shaped coupling portion 40b at the upper end of the tool body 40 at the punch position P2 (FIGS. 1 and 2).

  In FIG. 3, a lower edge processing tool 22 includes a tool outer case 49 fixed to the lower turret 16 via a lower mold holding base 47, and a tool main body supported in the tool outer case 49 so as to be movable up and down. 50, a ball holding member 52 fixed to the upper member 51A of the tool main body 50, and a ball 53 that is rotatably supported by the ball holding member 52 and protrudes upward. FIG. 4B shows a perspective view of the upper member 51A of the tool body 50. FIG.

  As shown in FIG. 3, the balls 43 and 53 of the upper and lower edge processing tools 21 and 22 are arranged so as to protrude opposite to each other on the opposing surfaces of the ball holding members 42 and 52. The diameter of each of the balls 43 and 53 is sufficiently larger than the width a of the thermal cutting processed part A. In this embodiment, the balls 43 of the upper edge processing tool 21 have a diameter several times larger than the balls 53 of the lower edge processing tool. The upper and lower balls 43 and 53 may have the same diameter.

  The ball 43 and the ball holding member 42 of the upper mold 21 are constituted by free bearings, and the ball 43 is rotatably provided in a case serving as the ball holding member 42 so as to be rotatable and prevented from coming off. The ball 53 and the ball holding member 52 of the lower edge processing tool 22 are also configured by free bearings, as with the upper edge processing tool 21. These upper and lower free bearings may have the same configuration except for the differences in the diameters of the balls 43 and 53, or may have the same configuration including the diameters of the balls 43 and 53. The balls 43 and 53 are steel balls, for example.

  The lower member 51B of the tool main body 50 of the lower edge processing tool 22 is fitted in a guide hole 49a provided in the tool outer case 49 so as to be movable up and down. And is supported up and down freely. The lower member 51B of the tool body 50 is screwed with a bolt 55 that passes through a bolt insertion hole 54 provided in the tool outer case 49 in parallel with the guide hole 49a. The tool body 50 is biased downward by a coil spring 56 interposed between the head portion 55a of the bolt 55 and the enlarged diameter portion 54a of the bolt insertion hole 54.

  A lower die lifting means 57 is provided at a position below the lower turret 16 at the punch position P2. The lower mold lifting / lowering means 57 raises the lower mold 18 to a predetermined height when punching the plate material W when the upper and lower molds 17 and 18 are molds for molding. Is. The lower mold 18 for molding has a molding portion (not shown) protruding upward. If the molding portion protrudes upward from the die height when not in use, the lower surface of the plate W is damaged. Therefore, the lower mold 18 is formed so that the molding portion protrudes upward only during use. Raise to a predetermined height. The lower mold lifting / lowering means 57 is also used for the lower edge processing tool 22 so as to be raised to a predetermined height during use.

  As shown in a plan view and a front view in FIGS. 5A and 5B, the lower mold lifting means 57 is, for example, a lower turret 16 by a pair of guide members 59 and 60 on a reaction force receiving member 58. The advancing / retreating member 61 is guided to advance / retreat in a direction orthogonal to the radial direction of the actuator, and the actuator 62 drives the advancing / retreating member 61 to advance / retreat. The upper surface of the advance / retreat member 61 includes an upper horizontal surface portion 61a and a lower horizontal surface portion 61c, and an inclined surface portion 61b that is inclined downward from the upper horizontal surface portion 61a to the lower horizontal surface portion 61c. The actuator 62 is composed of a fluid cylinder, and the tip of the piston rod is connected to the rear end of the advance / retreat member 61 by a connecting member 63. A cam follower 64 provided at the lower end of the lower member 51B of the tool body 50 in the lower edge processing tool 22 is brought into sliding contact with the upper surface of the advance / retreat member 61.

  In the state where the cam follower 64 is received by the upper horizontal surface portion 61a of the advance / retreat member 61 as shown in FIG. 3 by the advance / retreat drive of the advance / retreat member 61 by the actuator 62, the lower edge processing tool 22 performs a surface pressing to a predetermined height. Lifted. Further, as shown in FIG. 6, in a state where the cam follower 64 is received by the lower horizontal surface portion 61 c of the advance / retreat member 61, the lower edge processing tool 22 is lowered. Thereby, when the lower edge processing tool 22 is positioned away from the punching position P2 due to the rotation of the lower turret 16, it is avoided that the balls 53 of the lower edge processing tool 22 are in sliding contact with the lower surface of the plate material W. The

  According to the laser / punch combined machine 1 having this configuration, when the laser processing unit 2 performs the thermal cutting process on the plate material W, the heat is generated using the pair of upper and lower edge processing tools 21 and 22 without changing the plate material W. Edge processing by surface pressing is performed along the cut portion A. This edge processing may be performed for each thermal cutting part A immediately after the thermal cutting process is performed, for example, before moving to the next thermal cutting part A. The cutting process part A may be performed collectively. Further, as shown in FIG. 7A, the edge processing may be performed in a state where plate parts, for example, a product plate material W1 and a material plate material W2, exist on both sides of the thermal cutting portion A, as shown in FIG. As in the case of the product plate material W1 separated from the material plate material W2, the plate material portion may be present only on one side of the thermal cutting part A as shown in FIG.

The edge processing by the surface pressing is performed as follows. Here, edge processing in the case where plate material portions are present on both sides of the thermal cutting part A will be described.
First, the upper and lower turrets 15 and 16 are rotationally driven to determine the pair of upper and lower edge processing tools 21 and 22 at the punch position P2. Then, the plate material W gripped by the work holder 33 of the plate material feed mechanism 4 at the time of the thermal cutting process is moved by the plate material feed mechanism 4 without changing it as it is, and as shown by a solid line in FIG. The part is positioned at the punch position P2.

  Next, the upper edge processing tool 21 is lowered to a predetermined height by driving the ram 25, and the lower edge processing tool 22 is raised to a predetermined height by the lower mold lifting means 57, and FIG. As in (B), the plate material W is sandwiched from above and below by a pair of upper and lower balls 43 and 53. FIG. 4A shows a stage in the middle of the lowering process of the upper edge processing tool 21 and the rising process of the lower edge processing tool 22. At this time, the upper and lower edge processing tools 21, 22 are made of the plate material W. It is in contact with the upper and lower surfaces. FIG. 5B shows a state in which the upper edge processing tool 21 is lowered to a predetermined height and the lower edge processing tool 22 is raised to a predetermined height. In this final stage, the lower end of the upper ball 43 bites into the center side of the plate thickness a little from the upper surface of the plate material W, and the upper end of the lower ball 53 moves slightly to the center side of the plate thickness slightly from the lower surface of the plate material W. Biting in.

In this state, as shown by a chain line in FIG. 8, the plate material W is moved by the plate material feed mechanism 4 so that the balls 43 and 53 move relative to each other along the thermal cutting part A. Thereby, the edge parts B and C on both the upper and lower sides along the heat-cutting part A are sandwiched from above and below by the pair of upper and lower balls 43 and 53 and pressed. By this surface pressing, the burr-like projections 70 on the lower surface edge C are crushed and removed by the lower balls 53. The term “removal” as used herein means that the protruding portion of the burr-like projection 70 with respect to the lower surface of the plate material W is at least reduced or eliminated by the crushing action.
Further, in the edge processing of this embodiment, the upper and lower balls 43 and 53 are bitten into the plate material W so that the upper edge 43 is recessed from the upper surface by the upper balls 43 as shown in FIG. The lower ball 55 is plastically deformed into a shape in which the lower surface edge C is recessed from the lower surface. By plastically deforming in this manner, the edges of the upper surface edge B and the lower surface edge C are removed, and the touch becomes smooth.

  In the edge processing operation by the above surface pressing, the upper ball 43 is urged downward by the coil spring 45 (FIG. 3), so that it does not depend on the thickness variation of the plate material W and follows the thermal cutting processed part A. Can be evenly pressed. Since the upper and lower balls 43 and 53 are rotatably supported by the ball support members 42 and 52 (FIG. 3), and rotate freely in an arbitrary direction by feeding the plate material W, the plate material W can be smoothly fed. Therefore, edge processing can be performed continuously and efficiently.

  FIG. 10 is a cross-sectional view illustrating the edge processing operation of the plate material W having the scratch prevention sheet S attached to the lower surface. The sheet S is made of, for example, a synthetic resin material. In the case of such a sheet material W with a sheet, a protrusion 71 formed by mixing the slag and the oxide of the sheet S is formed on the lower surface edge C along the heat cutting part A of the sheet material W by the heat cutting process. Also in this case, the protrusion 71 is crushed and removed by the lower ball 53 by performing an edge processing operation by surface pressing in the same manner as described above. Further, similarly to the above, the upper and lower balls 43 and 53 are plastically deformed so that the upper surface edge B and the lower surface edge C are recessed, thereby smoothing the touch of the upper surface edge B and the lower surface edge C. To.

  FIG. 11 shows edge processing in the case where a plate material portion exists only on one side of the thermal cutting part A, like the product plate material W1 separated from the material plate material W2. Also in this case, the same series of edge processing operations as those in the case where the plate material portions exist on both sides of the thermal cutting portion A are performed. Thereby, the same effect as the case where a board | plate material part exists in the both sides of the heat cutting process part A is acquired.

The edge processing tools 21 and 22 of the above embodiment are configured to crush and remove the protrusions 70 and 71 by sandwiching the edges of the plate material W with a pair of upper and lower balls 43 and 53. Instead of 53, the projections 70 and 71 may be crushed and removed by sandwiching the edge of the plate material W with a pair of upper and lower rollers (not shown).
Further, the projections 70 and 71 may be scraped and removed instead of being crushed and removed. For example, FIG. 12 shows a configuration in which the protrusions 70 are scraped off with a rotating brush 80. FIG. 13 shows a configuration in which the protrusions are scraped off by 70 and 71 with a rotating file 81. FIG. 14 shows a configuration in which the projection is scraped off by the cutter 82 with 70 and 71.

DESCRIPTION OF SYMBOLS 1 ... Laser punch punching machine 2 ... Laser processing part 3 ... Punch processing part 4 ... Plate material feed mechanism 11 ... Laser head 15 ... Upper turret (upper tool support)
16 ... Lower turret (lower tool support)
17 ... Upper mold 18 ... Lower mold 21, 22 ... Edge processing tools 23, 24 ... Mold indexing means 25 ... Ram 26 ... Punching means 42 ... Ball holding member 43 of upper mold ... Ball of upper mold 52 ... Lower mold ball holding member 53 ... Lower mold balls 70, 71 ... Protrusion A ... Thermal cutting portion B ... Upper surface edge C ... Lower surface edge P2 ... Punch position W ... Plate material S ... Sheet

Claims (4)

A plate material feed mechanism capable of feeding the plate material back and forth, left and right;
A laser processing unit that irradiates the plate material fed by the plate material feeding mechanism with laser light and thermally cuts the plate material;
An upper tool support capable of installing a plurality of upper molds, a lower tool support capable of installing a plurality of lower molds corresponding to the upper mold, the upper tool support and the lower tool support. Punch processing unit provided with mold indexing means for indexing an upper mold and a lower mold to a predetermined punch position, and punching means for raising and lowering the upper mold by a ram at the punch position to punch a plate material When,
A laser / punch combined machine
Instead of at least one of a plurality of sets of the upper mold and the lower mold provided on the upper tool support and the lower tool support, on the edge of the plate material by thermal cutting by the laser processing unit Laser punch combined machine equipped with an edge processing tool that removes the generated protrusions.   The edge processing tools are opposed to each other, and upper and lower ball holding members respectively disposed on the upper tool support and the lower tool support, and rotatably supported by these ball holding members. The plate material is moved by the plate material feeding mechanism in a state where the upper and lower balls protrude opposite to each other on the opposite surface, and the thermal cutting processed portion processed by the laser processing portion of the plate material is sandwiched between the upper and lower balls. The laser / punch combined machine according to claim 1, wherein the lower end edge portion of the plate material along the thermal cutting portion is pressed upward by the lower ball by being sent along the thermal cutting portion. .   The laser / punch combined machine according to claim 1, wherein the edge processing tool removes a protrusion generated on an edge of a plate material by punching by the punching unit.   The laser / punch combined machine according to any one of claims 1 to 3, wherein a sheet for preventing damage is attached to a lower surface of the plate material during processing.

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