WO2021192553A1 - 成形システム - Google Patents
成形システム Download PDFInfo
- Publication number
- WO2021192553A1 WO2021192553A1 PCT/JP2021/001854 JP2021001854W WO2021192553A1 WO 2021192553 A1 WO2021192553 A1 WO 2021192553A1 JP 2021001854 W JP2021001854 W JP 2021001854W WO 2021192553 A1 WO2021192553 A1 WO 2021192553A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- molding
- metal material
- processing
- metal pipe
- pipe material
- Prior art date
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- 238000000465 moulding Methods 0.000 title claims abstract description 276
- 239000007769 metal material Substances 0.000 claims abstract description 84
- 238000012545 processing Methods 0.000 claims abstract description 47
- 238000000034 method Methods 0.000 claims description 51
- 238000012805 post-processing Methods 0.000 claims description 45
- 238000001514 detection method Methods 0.000 claims description 10
- 238000007781 pre-processing Methods 0.000 abstract 3
- 239000000463 material Substances 0.000 description 116
- 239000002184 metal Substances 0.000 description 116
- 230000032258 transport Effects 0.000 description 39
- 238000010438 heat treatment Methods 0.000 description 38
- 239000012530 fluid Substances 0.000 description 21
- 238000001816 cooling Methods 0.000 description 10
- 230000010354 integration Effects 0.000 description 7
- 239000010720 hydraulic oil Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 230000010363 phase shift Effects 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000005422 blasting Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 101000759226 Homo sapiens Zinc finger protein 143 Proteins 0.000 description 1
- 244000208734 Pisonia aculeata Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 102100023389 Zinc finger protein 143 Human genes 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/035—Deforming tubular bodies including an additional treatment performed by fluid pressure, e.g. perforating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
- B21C51/005—Marking devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/039—Means for controlling the clamping or opening of the moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/006—Feeding elongated articles, such as tubes, bars, or profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
- B21D43/105—Manipulators, i.e. mechanical arms carrying a gripper element having several degrees of freedom
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/40—Direct resistance heating
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
- C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2261/00—Machining or cutting being involved
Definitions
- One aspect of the present invention relates to a molding system.
- Patent Document 1 a molding system described in Patent Document 1 is known.
- This molding system includes a heating unit that heats a metal material, a fluid supply unit that supplies a fluid to the heated metal material, and a molding mold that molds the heated metal material.
- the molding apparatus makes the shape of the metal material correspond to the molding surface by bringing the molding surface of the molding die into contact with the heated metal material.
- the molding system described in Patent Document 1 described above expands and deforms a metal material to perform molding.
- a reference hole for clarifying the reference position in the pre-stage of the molding process. Even in a situation where such a reference hole cannot be provided, it is required to improve the accuracy of the product using the molded product.
- One aspect of the present invention has been made to solve such a problem, and an object of the present invention is to provide a molding system capable of improving the accuracy of a product using a molded product.
- the molding system is a molding system that expands and deforms a metal material to perform molding, and includes a molding device that performs molding and at least one transport device that transports the metal material.
- the apparatus conveys the metal material to the molding apparatus while holding the metal material, and if there is a pretreatment apparatus that performs pretreatment for molding, the conveying apparatus conveys the metal material to the pretreatment apparatus while holding the metal material. From the transfer process in which the metal material is transferred to any device by the transfer device to the processing process in any device, the transfer device and at least one of the transfer devices hold the metal material. continue.
- the transport device when the transport device transports the metal material to the molding device and there is a pretreatment device that performs pretreatment for molding, the transport device pretreats the metal material while holding the metal material. Transport to the device.
- the transfer device and at least one of the devices are made of metal. Keep holding the material. That is, at least one of the transfer device and the molding device continues to hold the metal material from the transfer step of being transferred to the molding device by the transfer device to the molding process step of the molding device.
- the pretreatment device when the pretreatment device is present, at least one of the transfer device and the pretreatment device is used between the transfer process of being transferred to the pretreatment device by the transfer device and the pretreatment step of the pretreatment device.
- the molding system can perform the processing step while maintaining the position of the metal material aligned. That is, it is possible to carry out the molding process and the pretreatment by continuing to restrain the metal material in the molding apparatus and the pretreatment apparatus so as to suppress the positional deviation and the phase shift. From the above, the accuracy of the product using the molded product can be improved.
- the molding system further includes a positioning unit for positioning the metal material in a part of the pretreatment device, the transport device holds the metal material in a state of being positioned in the positioning unit, and the metal material is transported by the positioning unit. From the time when the device is held by the device until the molding is performed by the molding device, the transfer device, the molding device, and the pretreatment device, if any, may be continuously held by the pretreatment device. In this case, the molding system can perform the molding process in the molding apparatus while maintaining the state in which the metal material is aligned at the positioning portion.
- the molding system further includes a post-processing device that processes the molded product molded by the molding device, the molding device marks the molded product, and the post-processing device detects the mark formed by the marking. .. It is not possible to form a reference hole or the like in the metal material before the molding process involving expansion and deformation, but here, the molding apparatus marks the molded product after expansion and deformation. The marking serves to mark a precise relative position to the product shape. Therefore, in the post-process of the molding step, the post-processing apparatus can perform highly accurate processing by using the information obtained by the marking. From the above, the accuracy of the product using the molded product can be improved.
- the molding system is a molding system that expands and deforms a metal material to perform molding, and includes a molding apparatus that performs molding and a post-processing apparatus that processes a molded product molded by the molding apparatus. , The molding apparatus marks the molded product, and the post-processing apparatus detects the mark formed by the marking.
- the molding device marks the molded product
- the post-processing device detects the mark formed by the marking. It is not possible to form a reference hole or the like in the metal material before the molding process involving expansion and deformation, but here, the molding apparatus marks the molded product after expansion and deformation.
- the marking serves to mark a precise relative position to the product shape. Therefore, in the post-process of the molding step, the post-processing apparatus can perform highly accurate processing by using the information obtained by the marking. From the above, the accuracy of the product using the molded product can be improved.
- the post-processing apparatus may detect the mark, correct the processing position of the molded product based on the detection result, and perform the predetermined processing. As a result, the post-processing apparatus can perform accurate processing based on the mark detection result.
- a molding system that expands and deforms a metal material to perform molding that is, a molding device that performs molding, at least one transport device that transports the metal material, and a post-processing device that processes a molded product molded by the molding device. If there is a pretreatment device that transports the metal material to the molding device while holding the metal material and performs pretreatment for molding, the transfer device holds the metal material in the front. From the transfer process in which the metal material is transferred to the processing device and the metal material is transferred to any device by the transfer device to the processing process in any device, the transfer device and at least one of the transfer devices.
- the forming apparatus marks the molded product, and the post-processing apparatus detects the mark formed by the marking.
- the transfer device when the transfer device transfers the metal material to the molding device while holding the metal material and there is a pretreatment device that performs the pretreatment for molding, the transfer device transfers the metal material. Transport to the pretreatment device while holding it.
- the transfer device and at least one of the devices are made of metal. Keep holding the material. That is, at least one of the transfer device and the molding device continues to hold the metal material from the transfer step of being transferred to the molding device by the transfer device to the molding process step of the molding device.
- the pretreatment device when the pretreatment device is present, at least one of the transfer device and the pretreatment device is used between the transfer process of being transferred to the pretreatment device by the transfer device and the pretreatment step of the pretreatment device.
- the molding system can perform the processing step while maintaining the position of the metal material aligned. That is, it is possible to carry out the molding process and the pretreatment by continuing to restrain the metal material in the molding apparatus and the pretreatment apparatus so as to suppress the positional deviation and the phase shift. From the above, the accuracy of the product using the molded product can be improved.
- the molding apparatus marks the molded product
- the post-processing apparatus detects the mark formed by the marking. It is not possible to form a reference hole or the like in the metal material before the molding process involving expansion and deformation, but here, the molding apparatus marks the molded product after expansion and deformation.
- the marking serves to mark a precise relative position to the product shape. Therefore, in the post-process of the molding step, the post-processing apparatus can perform highly accurate processing by using the information obtained by the marking. From the above, the accuracy of the product using the molded product can be improved.
- FIG. 1 is a schematic view of a molding apparatus 1 used in the molding system 100 according to the present embodiment.
- the molding apparatus 1 is an apparatus for molding a heated metal material with a molding die.
- a STAF molding apparatus that performs molding and quenching by supplying a fluid to a heated metal pipe material and bringing it into contact with the molding surface of a molding die is adopted.
- the molding apparatus 1 is installed on a horizontal plane.
- the molding apparatus 1 includes a molding die 2, a drive mechanism 3, a holding unit 4, a fluid supply unit 6, a cooling unit 7, and a control unit 8.
- the metal pipe material 40 (metal material) refers to a hollow article before the completion of molding by the molding apparatus 1.
- the metal pipe material 40 is a hardenable steel type pipe material. Further, among the horizontal directions, the direction in which the metal pipe material 40 extends at the time of molding may be referred to as “longitudinal direction", and the direction orthogonal to the longitudinal direction may be referred to as "width direction”.
- the molding die 2 is a die for molding a product from the metal pipe material 40, and includes a lower mold 11 and an upper mold 12 facing each other in the vertical direction.
- the lower mold 11 and the upper mold 12 are made of steel blocks.
- Each of the lower mold 11 and the upper mold 12 is provided with a recess having a molding surface of the metal pipe material 40.
- the lower mold 11 and the upper mold 12 are in close contact with each other (mold closed state), and each recess forms a space having a target shape in which the metal pipe material is to be formed. Therefore, the surface of each recess becomes the molding surface of the molding die 2.
- the lower mold 11 is fixed to the base 13 via a die holder or the like.
- the upper mold 12 is fixed to the slide of the drive mechanism 3 via a die holder or the like.
- the drive mechanism 3 is a mechanism for moving at least one of the lower mold 11 and the upper mold 12.
- the drive mechanism 3 has a configuration in which only the upper mold 12 is moved.
- the drive mechanism 3 includes a slide 21 for moving the upper mold 12 so that the lower mold 11 and the upper mold 12 are aligned with each other, and a pull-back cylinder as an actuator for generating a force for pulling the slide 21 upward.
- a 22 is provided, a main cylinder 23 as a drive source for lowering and pressurizing the slide 21, and a drive source 24 for applying a driving force to the main cylinder 23.
- the holding portion 4 is a mechanism for holding the metal pipe material 40 arranged between the lower mold 11 and the upper mold 12.
- the holding portion 4 is a holding member 26 and a holding member 27 that hold the metal pipe material 40 on one end side in the longitudinal direction of the molding die 2, and the holding members 26 and the holding member 27 on both sides in the longitudinal direction are metal pipe materials.
- the metal pipe material 40 is held by sandwiching the vicinity of the end portion of the 40 from the vertical direction.
- Grooves having a shape corresponding to the outer peripheral surface of the metal pipe material 40 are formed on the upper surface of the holding member 26 and the lower surface of the holding member 27.
- the holding member 26 and the holding member 27 are provided with a drive mechanism (not shown), and can move independently in the vertical direction.
- the fluid supply unit 6 is a mechanism for supplying a high-pressure fluid into the metal pipe material 40 held between the lower mold 11 and the upper mold 12.
- the fluid supply unit 6 supplies a high-pressure fluid to the metal pipe material 40 that has been heated to a high temperature state, and expands the metal pipe material 40.
- the fluid supply unit 6 is provided on both end sides of the molding die 2 in the longitudinal direction.
- the fluid supply unit 6 is a nozzle 31 that supplies fluid from the opening at the end of the metal pipe material 40 to the inside of the metal pipe material 40, and a drive that moves the nozzle 31 forward and backward with respect to the opening of the metal pipe material 40.
- a mechanism 32 and a supply source 33 for supplying a high-pressure fluid into the metal pipe material 40 via the nozzle 31 are provided.
- the drive mechanism 32 brings the nozzle 31 into close contact with the end of the metal pipe material 40 while ensuring the sealing property during fluid supply and exhaust, and separates the nozzle 31 from the end of the metal pipe material 40 at other times.
- the fluid supply unit 6 may supply a gas such as high-pressure air or an inert gas as the fluid. Further, the fluid supply unit 6 may be the same device together with the holding unit 4 having a mechanism for moving the metal pipe material 40 in the vertical direction. In this case, the base member 38 that supports the fluid supply unit 6 and the holding unit 4 may be connected by a connecting member 39.
- the cooling unit 7 is a mechanism for cooling the molding die 2. By cooling the molding die 2, the cooling unit 7 can rapidly cool the metal pipe material 40 when the expanded metal pipe material 40 comes into contact with the molding surface of the molding die 2.
- the cooling unit 7 includes a flow path 36 formed inside the lower mold 11 and the upper mold 12, and a water circulation mechanism 37 that supplies and circulates cooling water to the flow path 36.
- the control unit 8 is a device that controls the entire molding device 1.
- the control unit 8 controls the drive mechanism 3, the holding unit 4, the fluid supply unit 6, and the cooling unit 7.
- the control unit 8 repeatedly performs an operation of molding the metal pipe material 40 with the molding die 2.
- control unit 8 controls, for example, the transfer timing from a transfer device such as a robot arm, and puts the metal pipe material 40 between the lower mold 11 and the upper mold 12 in the open state. Deploy. Further, the control unit 8 controls the actuator or the like of the holding unit 4 so that the metal pipe material 40 is supported by the holding members 26 on both sides in the longitudinal direction, and then the holding member 27 is lowered to sandwich the metal pipe material 40. do.
- the control unit 8 controls the drive mechanism 3 to lower the upper mold 12 and bring it closer to the lower mold 11 to close the molding mold 2.
- the control unit 8 controls the fluid supply unit 6 to seal the openings at both ends of the metal pipe material 40 with the nozzle 31 and supply the fluid.
- the metal pipe material 40 softened by heating expands and comes into contact with the molding surface of the molding die 2.
- the metal pipe material 40 is molded so as to follow the shape of the molding surface of the molding die 2.
- a part of the metal pipe material 40 is inserted into the gap between the lower mold 11 and the upper mold 12, and then the mold is further closed. The entrance portion is crushed to form a flange portion.
- the metal pipe material 40 comes into contact with the molding surface, the metal pipe material 40 is quenched by quenching with the molding die 2 cooled by the cooling unit 7.
- the molding apparatus 1 expands and deforms the metal pipe material 40 to perform molding. Therefore, it is not possible to form a structure in which the metal pipe material 40 is punctured and the fluid leaks before the metal pipe material 40 expands in the molding apparatus 1. Therefore, it is not possible to form a positioning hole in the metal pipe material 40 before molding. Therefore, the molding system 100 according to the present embodiment has a structure for molding with the molding apparatus 1 in a state where the metal pipe material 40 is positioned.
- FIG. 2 is an example of a conceptual diagram showing the configuration of the molding system 100 according to the present embodiment.
- the molding system 100 includes a metal pipe material preparation area E1, a heating area E2, a molding area E3, an integration area E4, a processing area E5, and a processing area E6.
- the molding system 100 includes a positioning portion 50 of the metal pipe material preparation area E1, a heating device 60 of the heating area E2, a molding device 1 of the molding area E3, an integration portion 70 of the integration area E4, and a processing area E5.
- It includes an inspection device 81, a scale removing device 82, an integration unit 83, a post-processing device 90 in the processing area E6, and transfer devices 110A to 110D arranged in each area.
- the transport devices 110A to 110D are configured by a transport device such as a robot.
- the metal pipe material 40 is prepared. Further, in the metal pipe material preparation area E1, the metal pipe material 40 is positioned by the positioning unit 50 as shown in FIG. 3A.
- the positioning unit 50 positions the metal pipe material 40 by three-point support, for example, as shown in FIG. 3A. That is, the positioning portion 50 includes support portions 51A and 51B that support both ends of the metal pipe material 40, and support portions 51C that support the central position of the metal pipe material 40 in the longitudinal direction.
- the positioning portion 50 can determine the phase of the metal pipe material 40 by the support portions 51A, 51B, 51C. Further, in the positioning portion 50, positioning in the longitudinal direction is performed by pressing one end of the metal pipe material 40 against the wall portion 52.
- the metal pipe material 40 positioned by the positioning unit 50 is conveyed to the heating device 60 in the heating area E2 by the transfer device 110A.
- the heating device 60 includes two sets of electrodes 61 and 62.
- One of the electrodes 61 and 62 sandwiches and grips one end of the metal pipe material 40.
- the other electrodes 61 and 62 sandwich and grip the other end of the metal pipe material 40.
- the heating device 60 is a mechanism for heating the metal pipe material 40 by energizing the metal pipe material 40 via the electrodes 61 and 62.
- the heating device 60 causes a high current to flow between one electrode 61, 62 and the other electrode 61, 62.
- an axial current flows through the metal pipe material 40, and the metal pipe material 40 itself generates heat due to Joule heat due to the electrical resistance of the metal pipe material 40 itself.
- the metal pipe material 40 heated by the heating device 60 is transported to the molding device 1 in the molding area E3 by the transport device 110B.
- the metal pipe material 40 is molded by the molding apparatus 1.
- the molded product 41 is formed (see FIG. 4).
- the molded product 41 molded by the molding device 1 is integrated in the integration section 70 of the integration area E4 by the transfer device 110C.
- the accumulating unit 70 is an apparatus for accumulating a plurality of molded products 41. As shown in FIG. 4 (rion), in the stacking unit 70, the transport device 110C grips the molded product 41 molded by the molding device 1 and places it on the stacking carriage 71. By repeating the operation, the transport device 110C stacks the molded products 41 on the stacking carriage 71 to collect the molded products 41.
- the operator conveys the stacking trolley 71 on which the molded products 41 are stacked in the stacking section 70 to the inspection device 81 in the processing area E5.
- the inspection device 81 inspects the molded product 41.
- the inspection device 81 inspects the shape of the molded product 41 and displays an error if it does not meet the predetermined criteria.
- the operator conveys the passed molded product 41 to the scale removing device 82.
- the scale removing device 82 removes the oxide scale generated in the molded product 41 during molding.
- the scale removing device 82 removes scale by, for example, shot blasting or wet blasting.
- the operator collects the molded product 41 from which the scale has been removed on the stacking cart of the stacking unit 83.
- the molded product 41 of the integration unit 83 is conveyed to the post-processing device 90 in the processing area E6 by the transfer device 110D.
- the post-processing apparatus 90 in the processing area E6 irradiates the molded product 41 with a laser to perform processing such as drilling, notch forming, and cutting.
- the post-processing apparatus 90 includes a laser head 91 (processed portion). The post-processing device 90 moves the laser head 91 according to the processing content while irradiating the molded product 41 from the laser head 91.
- the molding system 100 has a function of restraining the relative position and relative phase of the positioned metal pipe material 40 from changing until molding is performed by the molding apparatus 1.
- the metal pipe material 40 is used in any of the devices 1, 60 from the transfer step in which the metal pipe material 40 is conveyed to any of the devices 1, 60 by the transfer devices 110A and 110B. Until the processing step, it continues to be gripped by at least one of the transport devices 110A and 110B and any of the devices 1 and 60. The metal pipe material 40 is gripped by any of the transport devices 110A and 110B, the molding device 1, and the heating device 60 from the time when the metal pipe material 40 is gripped by the transfer device 110A by the positioning unit 50 until the molding is performed by the molding device 1. Continue to be done.
- the transport device 110A sandwiches the metal pipe material 40 in a state of being positioned by the positioning unit 50 between the gripping members 101 and 102, so that the metal pipe material 40 is sandwiched between the gripping members 101 and 102.
- the transport device 110A has a structure in which the position and angle of the metal pipe material 40 with respect to the gripping members 101 and 102 do not deviate before and after gripping the metal pipe material 40 on the positioning portion 50.
- the transport device 110A transports the metal pipe material 40 to the heating device 60 while being gripped by the gripping members 101 and 102.
- the transport device 110A does not release the grip of the metal pipe material 40 or change the gripping state (for example, change the gripping position or angle) during the transport.
- the transfer device 110A positions the heating device 60 while holding the metal pipe material 40. At this time, the transport device 110A performs positioning based on information such as the position and angle at which the metal pipe material 40 is gripped. After the positioning of the transfer device 110A is completed, the heating device 60 grips both ends of the metal pipe material 40 with the electrodes 61 and 62. As shown in FIG. 3D, when the gripping is completed at the electrodes 61 and 62, the gripping portion 100A releases the gripping of the metal pipe material 40 and returns the gripping members 101 and 102 to the positioning portion 50 again.
- the transport device 110B grips the metal pipe material 40 by sandwiching the heated metal pipe material 40 between the gripping members 101 and 102.
- the transport device 110B has a structure in which the positions and angles with respect to the gripping members 101 and 102 do not deviate before and after gripping the metal pipe material 40 on the heating device 60.
- the heating device 60 releases the gripping by the electrodes 61 and 62.
- the transport device 110B transports the metal pipe material 40 to the molding device 1 while being gripped by the gripping members 101 and 102.
- the transport device 110B does not release the grip of the metal pipe material 40 or change the gripping state (for example, change the gripping position or angle) during the transport.
- the transfer device 110B positions the molding device 1 while holding the metal pipe material 40.
- the transport device 110B has a structure in which the positions and angles with respect to the gripping members 101 and 102 do not deviate before and after gripping the metal pipe material 40.
- the molding device 1 grips both ends of the metal pipe material 40 with the holding members 26 and 27.
- the grip portion 100B releases the grip of the metal pipe material 40 and returns the grip members 101 and 102 to the heating device 60 side again.
- the metal pipe material 40 arranged in the molding apparatus 1 becomes a molded product 41 after molding.
- the molding apparatus 1 marks the molded product 41.
- the molding apparatus 1 has a marking portion 120.
- the marking unit 120 marks the outer peripheral surface of the molded product 41.
- the marking unit 120 includes a pin 121, a pin support mechanism 122, a hydraulic chamber 123, and a hydraulic oil supply unit 124, for example, in the case of marking with a pin.
- the pin 121 is arranged in the lower mold 11 and can reciprocate in the vertical direction. When marking is not performed, the pin 121 is housed in the lower mold 11 so as not to protrude from the molding surface 11a. The pin 121 protrudes from the molding surface 11a when marking is performed.
- the pin support mechanism 122 is a mechanism for supporting the pin 121 in the lower mold 11.
- the pin support mechanism 122 supports the pin 121 so as to be reciprocally movable in the vertical direction. Further, the pin support mechanism 122 includes a spring member 122a. When the pin 121 protrudes from the molding surface 11a, the spring member 122a applies an elastic force in the direction of returning the pin 121 to its original position.
- the hydraulic chamber 123 is an internal space formed in the lower mold 11. The base end portion of the pin 121 is exposed in the hydraulic chamber 123.
- the hydraulic oil supply unit 124 supplies the hydraulic oil to the hydraulic chamber 123.
- the hydraulic oil supply unit 124 supplies the hydraulic oil to the hydraulic chamber 123
- the base end portion of the pin 121 receives pressure
- the pin 121 protrudes from the molding surface 11a.
- a mark is formed on the outer peripheral surface of the molded product 41 by a dent or a through hole.
- the hydraulic mechanism as described above does not have to be built in the lower mold 11, and may be built in the die holder or the press device.
- the timing at which the pin 121 protrudes from the molding surface to perform marking is not particularly limited. However, the pin 121 may be marked when the temperature of the molded product 41 has dropped to some extent after the molding is completed. In this case, the mark can be added after the molded product 41, which has been expanded by heating, has shrunk by cooling.
- the marking portion 120 described above accommodates the pin 121 in the lower mold 11 at the time of molding the molding apparatus 1. After the molding is completed, the marking portion 120 projects the pin 121 from the molding surface 11a and presses the pin 121 against the molded product 41. As a result, a mark is given to the molded product 41.
- the marking portion 120 may be provided, for example, at a portion of the lower mold 11 corresponding to both end portions of the molded product 41 or a portion corresponding to the central position of the molded product 41. Further, the marking portion 120 may be provided at a portion of the upper mold 12 corresponding to both end portions of the molded product 41 or a portion corresponding to the central position of the molded product 41. However, the number and location of the marking portions 120 are not particularly limited.
- the marking portions 120 are at two or more locations including positions that are as far apart as possible.
- the mark may be any means as long as the coordinates can be specified.
- the mark may be a marking with a pin, an intersection line with a marking, or a hole.
- the post-processing apparatus 90 detects the mark MK formed by the marking. Further, the post-processing apparatus 90 detects the mark MK and corrects the position between the laser head 91 and the molded product 41 based on the detection result. As shown in FIG. 4B, the post-processing apparatus 90 includes a detection unit 92 that detects the mark MK.
- the detection unit 92 is composed of, for example, a camera. The detection unit 92 detects the position of the mark MK based on the captured image.
- the post-processing apparatus 90 calculates the relative deviation between the preset machining work locus and the molded product 41 gripped in the post-machining apparatus 90 based on the detected position of the mark MK, and calculates the relative deviation of the machining work locus. Calculate the amount of correction. Then, as shown in FIG. 4C, when there is a gap between the laser head 91 and the cutting line CL, the post-processing apparatus 90 moves the laser head 91 to the position of the cutting line CL. , Correct the deviation.
- the molding system 100 expands and deforms the metal pipe material 40 to perform high-pressure gas expansion molding.
- a type of molding system 100 since it is necessary to expand the metal material at the time of molding, it is not possible to form a reference hole for clarifying the reference position in the pre-stage of the molding step.
- the metal pipe material 40 can be easily positioned by inserting a positioning pin or the like into the reference hole, and the reference hole is also used for machining with the post-processing device 90.
- the molded product 41 can be positioned.
- high-pressure gas expansion molding if such a reference hole is formed in the metal pipe material 40, high-pressure gas leaks from the reference hole, and molding cannot be performed.
- the molding system 100 is a molding system 100 that expands and deforms the metal pipe material 40 to perform molding, and is a molding device 1 that performs molding and a transport device that conveys the metal pipe material 40. If there is a heating device (pretreatment device) that transports the metal pipe material 40 to the molding device 1 while holding the metal pipe material 40 and performs pretreatment for molding, the metal pipe material 40 is provided. From the transfer process in which the metal pipe material 40 is conveyed to any of the devices 1, 60 by the transfer device to the processing process in any of the devices 1, 60. In between, the transfer device, and at least one of any of the devices 1, 60, continues to grip the metal pipe material 40.
- pretreatment device heating device
- the transfer device and At least one of any of the devices 1, 60 continues to grip the metal pipe material 40. That is, at least one of the transfer device 110B and the molding device 1 grips the metal pipe material 40 from the transfer process of being transferred to the molding device 1 by the transfer device 110B to the molding processing step of the molding device 1. Continue to do.
- the heating device 60 is present, at least one of the transfer device 110A and the heating device 60 is used between the transfer step of being transferred to the heating device 60 by the transfer device 110A and the heating step of the heating device 60. Continues to grip the metal pipe material 40.
- the molding system 100 can execute the processing process while maintaining the position of the metal pipe material 40 aligned. can. That is, it is possible to continuously restrain the metal pipe material 40 in the molding apparatus 1 and the heating apparatus 60 so that there is no positional deviation or phase shift, and to execute the molding treatment or the heat treatment. From the above, the accuracy of the product using the molded product 41 can be improved.
- the molding system 100 further includes a positioning unit 50 for positioning the metal pipe material 40 as a part of the pretreatment device, and the transfer devices 110A and 110B grip the metal pipe material 40 in a state of being positioned by the positioning unit 50.
- the metal pipe material 40 is held by the transfer devices 110A and 110B by the positioning unit 50, and the transfer devices 110A and 110B, the molding device 1, and the heating device 60 are used until molding is performed by the molding device 1. If present, it continues to be gripped by any of the heating devices 60. In this case, there is no positional deviation or phase shift of the metal pipe material 40 in the transfer process of the transfer device 110A, the heating process of the heating device 60, the transfer process of the transfer device 110B, and the molding process of the molding device 1. It is possible to keep restraining and guarantee the repeatability. Therefore, the molding system 100 can perform the molding process in the molding apparatus 1 while maintaining the state in which the metal pipe material 40 is aligned by the positioning portion 50.
- the molding system 100 is a molding system 100 that expands and deforms the metal pipe material 40 to perform molding, and processes the molding apparatus 1 that performs molding and the molded product 41 molded by the molding apparatus 1.
- a post-processing device 90 is provided, and the molding device 1 marks the molded product 41, and the post-processing device 90 detects the mark formed by the marking and corrects the processing position based on the marking position. Performs a calculation and performs a predetermined process.
- the molding device 1 marks the molded product 41, and the post-processing device 90 detects the mark formed by the marking.
- the molding apparatus 1 marks the molded product 41 after expansion and deformation.
- the marking serves to mark a precise relative position to the product shape. Therefore, in the post-process of the molding step, the post-processing device 90 can perform highly accurate processing by using the information obtained by the marking. Further, when the post-processing device 90 performs reference hole and notch processing using the detection result of the marking, the same assembly process as the conventional car body assembly process can be used.
- the molding apparatus 1 can perform molding while maintaining the positioning state in the positioning unit 50. Therefore, the molding apparatus 1 can perform marking on the molded product 41 in a state where the positional deviation and the phase deviation are suppressed. Therefore, the post-processing apparatus 90 can perform processing by using the position information of the marking written at an accurate relative position with respect to the mold forming surface. From the above, the accuracy of the product using the molded product 41 can be improved.
- the post-processing apparatus 90 detects the mark, and based on the detection result, corrects the relative position of the processing based on the mark position marked in the accurate relative position with respect to the molded product 41, and performs a predetermined processing. conduct. As a result, the post-processing apparatus 90 can perform accurate processing based on the mark detection result.
- the molding system is a molding system that expands and deforms a metal material to perform molding, and is a molding device that performs molding, a transport device that conveys the metal material, and post-processing that processes a molded product molded by the molding device.
- the transport device includes an apparatus, and the transport device transports the metal material to the molding apparatus while holding the metal material, and if there is a pretreatment apparatus that performs pretreatment for molding, the pretreatment apparatus holds the metal material. From the transfer process in which the metal material is transferred to any device by the transfer device to the processing process in any device, the metal material is transferred to the transfer device and any device. Continued to be held on at least one side, the forming apparatus marks the molded product, and the post-processing apparatus detects the mark formed by the marking.
- the present invention is not limited to the above-described embodiment.
- the pretreatment device does not have to exist on the upstream side of the molding device. That is, the heating device does not have to exist.
- the molding apparatus has an electrode for energizing and heating.
- a device other than the heating device may exist.
- the transport device is not limited to robots and the like. That is, the transfer device may be any device that can transfer the metal pipe material while maintaining at least the position and phase.
- the marking mechanism is not limited to the above-described embodiment.
- marking is not performed at the time of molding, and after the molding is completed, the drive mechanism drives the pin to perform marking.
- a drive mechanism may be omitted, and a configuration in which the pin always protrudes from the molding surface may be adopted. In this case, marking is performed at the same time that the metal pipe material comes into contact with the molded surface. If a drive mechanism is provided, marking can be performed after the product shape is frozen, which is less affected by cooling shrinkage and the like.
- the post-processing device may detect the mark by a method other than shooting with a camera.
- the post-processing apparatus may detect the mark by a contact sensor or the like.
- a molding device that performs high-pressure gas expansion molding has been exemplified, but the molding method is not particularly limited as long as it is a molding method that performs molding by expansion deformation.
- a molding method such as hydroforming may be adopted.
- the processing unit is not limited to the post-processing apparatus, and an apparatus by another processing method may be adopted.
- molding device 60 ... heating device (pretreatment device), 90 ... post-processing device, 91 ... laser head (processing section), 100 ... molding system, 110A, 110B, 110C, 110D ... transfer device.
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Abstract
Description
Claims (6)
- 金属材料を膨張変形させて成形を行う成形システムであって、
前記成形を行う成形装置と、
前記金属材料を搬送する少なくとも一つの搬送装置と、を備え、
前記搬送装置は、
前記金属材料を保持した状態で前記成形装置へ搬送し、
且つ、成形の前処理を行う前処理装置が存在する場合は、前記搬送装置は前記金属材料を保持した状態で前記前処理装置へ搬送し、
前記搬送装置によって何れかの装置に前記金属材料が搬送される搬送工程から、前記何れかの装置での処理工程に至るまでの間において、前記搬送装置、及び前記何れかの装置の少なくとも一方が前記金属材料を保持し続ける、成形システム。 - 前記前処理装置の一部に前記金属材料の位置決めを行う位置決め部を更に備え、
前記搬送装置は、前記位置決め部において位置決めがなされた状態の前記金属材料を保持し、
前記金属材料は、前記位置決め部で前記搬送装置に保持されてから、成形装置で前記成形が行われるまでの間、前記搬送装置、前記成形装置、及び前記前処理装置が存在する場合は当該前処理装置の何れかに保持され続ける、請求項1に記載の成形システム。 - 前記成形装置で成形された成形品の加工を行う後加工装置を更に備え、
前記成形装置は、前記成形品に対してマーキングを行い、
前記後加工装置は、前記マーキングによって形成されたマークを検出する、請求項1又は2に記載の成形システム。 - 金属材料を膨張変形させて成形を行う成形システムであって、
前記成形を行う成形装置と、
前記成形装置で成形された成形品の加工を行う後加工装置と、を備え、
前記成形装置は、前記成形品に対してマーキングを行い、
前記後加工装置は、前記マーキングによって形成されたマークを検出する、成形システム。 - 前記後加工装置は、前記マークを検出し、当該検出結果に基づいて、前記成形品の加工の位置補正を行い、所定の加工を行う、請求項4に記載の成形システム。
- 金属材料を膨張変形させて成形を行う成形システムであって、
前記成形を行う成形装置と、
前記金属材料を搬送する少なくとも一つの搬送装置と、
前記成形装置で成形された成形品の加工を行う後加工装置と、を備え、
前記搬送装置は、
前記金属材料を保持した状態で前記成形装置へ搬送し、
且つ、成形の前処理を行う前処理装置が存在する場合は、前記搬送装置は前記金属材料を保持した状態で前記前処理装置へ搬送し、
前記搬送装置によって何れかの装置に前記金属材料が搬送される搬送工程から、前記何れかの装置での処理工程に至るまでの間において、前記搬送装置、及び前記何れかの装置の少なくとも一方が前記金属材料を保持し続ける、
前記成形装置は、前記成形品に対してマーキングを行い、
前記後加工装置は、前記マーキングによって形成されたマークを検出する、成形システム。
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EP21774397.0A EP4129522A4 (en) | 2020-03-27 | 2021-01-20 | MOLDING SYSTEM |
CN202180008754.XA CN114981023A (zh) | 2020-03-27 | 2021-01-20 | 成型系统 |
KR1020227022956A KR20220153575A (ko) | 2020-03-27 | 2021-01-20 | 성형시스템 |
CA3170407A CA3170407A1 (en) | 2020-03-27 | 2021-01-20 | Molding system |
US17/884,227 US11998969B2 (en) | 2020-03-27 | 2022-08-09 | Forming system |
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CA3170407A1 (en) | 2021-09-30 |
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