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
  • B21D7/00—Bending rods, profiles, or tubes
  • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
  • B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
• • 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
  • B21D7/00—Bending rods, profiles, or tubes
  • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
  • B21D7/021—Construction of forming members having more than one groove
• • 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
  • B21D7/00—Bending rods, profiles, or tubes
  • B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
  • B23D21/00—Machines or devices for shearing or cutting tubes
  • B23D21/04—Tube-severing machines with rotating tool-carrier

Definitions

• the present invention relates to a bending machine for bending long stretched profiles, in particular round tubes.
• Previously known bending machines as they have become known for example from DE 20 2014 104 329 Ul of the applicant, have a bending tool with a bending axis, the bending tool having at least one bending template bil dende a bending radius and a pivot arm pivotable about the bending axis.
• the swivel arm has a clamping jaw which interacts with the at least one bending template to fix a round tube to be bent.
• the swivel arm is swiveled around the bending axis, with the clamping jaw bending the round tube according to the bending radius of the bending template.
• the round tubes are formed in a cold forming process.
• the round tubes to be bent can usually be rotated in the bending machine so that the round tube to be bent can be shaped in different directions.
• the reshaped round tube can thus have a relatively complicated shape that is produced by means of several bending processes.
• very long round tubes are used very often, from which a large number of identical bent tube sections are to be produced, so that these have to be separated from the remaining tube that has not yet been bent after the bending process.
• the pipe is usually cut off at a point in front of the bending tool, so that the finished bent pipe sections still have straight, bent sections at one end that were necessary to hold the pipe during the bending process.
• straight pipe sections are not desired for many end products made from the round pipe, so that they have to be separated from the pipe to be manufactured in a further work step.
• the straight pipe pieces to be cut off also result in scrap material, which increases the costs for the production of the bent round pipes.
• the bending machine according to the invention is defined by the features of claim 1.
• the bending machine according to the invention for bending elongated profiles, in particular round tubes has a bending tool with a bending axis, the bending tool having at least one bending template forming a bending radius.
• the bending machine also has a pivot arm pivotable about the bending axis, the pivot arm having at least one clamping jaw which interacts with the least one bending template to fix a profile to be bent.
• the bending machine according to the invention is characterized by a profile separating device arranged on a tool holder with a tool head, the tool head having a separating device and a recess bil dende a separation, which extends to an edge of the tool head and forms an opening, the profile separating device and the profile to be separated are movable relative to one another in a radial direction of the profile, the profile being insertable through the opening in the recess and in the separation area.
• the cutting device can also be attached to profiles that have already been bent, since the cutting device can be attached to the profile in the radial direction of the profile.
• either the cutting device is moved to the profile to be cut or the profile to be cut is brought up to the cutting device and moved into the recess.
• a combination of these two movement variants is also possible.
• the bending machine according to the invention thus advantageously enables almost any curved shape of a profile to be separated at a desired point, so that almost no or only little material scrap occurs in the separated, curved Profileab.
• various long-stretched profiles can be bent, for example tubes, round tubes, oval tubes or other, non-hollow profiles.
• the separating region of the separating device preferably has a separating axis, the profile to be separated being arranged coaxially to the separating axis during the separating process.
• the recess runs in a radial direction of the tool head towards the edge of the tool head, so that a radial opening is formed.
• the tool head of the profile cutting device can be moved in the direction of the profile to be cut by means of the tool holder.
• the tool holder drives the tool head in rotation about at least one axis, whereby the position of the separating axis can be changed.
• the tool holder is preferably designed as a robot arm. In this way, the tool head is advantageously movable in the direction of the profile and can be placed on this.
• the tool holder is designed as a robot arm, there is in particular the possibility of the tool head being moved adjustably in several axes so that the tool head can be placed at almost any point on the profile to be cut.
• the bending machine according to the invention can also have a profile guide device which feeds the profile to the bending tool in the horizontal direction, the profile being movable in the vertical direction via the profile guide device.
• the profile to be cut can thus be moved in the direction of the profile cutting device by means of the profile guide device.
• the Profile Entryvorrich device can also be used, for example, to move the profile in the vertical direction in order to bend the profile on another bending template in the case of a bending tool with several bending templates arranged one above the other.
• the bending machine according to the invention can be designed in a structurally simple manner, since the profile guide device present for example in a multi-groove bending machine for moving the profile in the vertical direction can also be used for feeding the bent profile to the separating device.
• the bending machine according to the invention can also have a profile guide device that feeds the profile to the bending tool only in the horizontal direction, the bending tool being movable in the vertical direction in order to align the profile and the corresponding bending template with one another be connected to the bending tool, so that the profile separating device with the bending tool can be moved in the vertical direction.
• the profile separating device can be moved relative to the profile before direction.
• the tool holder is arranged on the swivel arm. This makes it possible to place the tool head at different points on the curved profile, or to place the tool head in the correct position. to be arranged at an angle so that the profile to be separated can be introduced into the recess in the radial direction.
• the tool holder has a bearing device which rotates the tool head and / or supports it so that it can be displaced in the horizontal direction. In this way, the tool head can be aligned in a particularly advantageous manner with respect to the profile to be cut.
• the cutting device has a cutting tool or a removal tool.
• a dividing tool can be used to carry out a process step of dividing (DIN 8588) for the separation of the profile, so that a cutting process takes place without chip removal.
• DIN 8588 process step of dividing
• a removal tool can be used to carry out a process step of removal (DIN 8590) in which a non-mechanical separation takes place, whereby no or only a small amount of material waste occurs.
• a support tool for example, a laser cutting device can be provided.
• the cutting tool is an orbital cutting device.
• the profile can be separated in a particularly advantageous manner.
• tubes in particular round tubes, can advantageously be cut.
• the orbital cutting device has at least one cutting knife wheel arranged on a knife carrier, which can be guided around the profile to be cut and advanced in the radial direction of the profile to be cut during the cutting process. In this way, a separation of the profile is possible in a particularly advantageous manner.
• the at least one cutting knife wheel is infeed via a controller. The infeed is therefore automatic, so that the cutting process can take place completely automatically.
• a cutting tool carrier disk is arranged in the tool head, the cutting tool carrier disk having a second recess which in a basic position is aligned with the recess of the tool head.
• the at least one knife carrier with the cutting knife wheel is arranged on the cutting tool carrier disk.
• the bending machine has a profile sliding device against which the profile rests during the bending process, the profile sliding device being arranged in the longitudinal direction of the profile in front of the bending tool.
• the profile sliding device can guide the profile in the axial direction during the bending process and, for example, can also be moved in the axial direction.
• a folding smoothing device can also be arranged, which cooperates with the profile sliding device.
• the profile sliding device can be arranged between the profile guide device and the bending tool.
• the tool head engages the profile in the feed direction of the profile behind the bending tool, between the profile sliding device and the bending tool or in front of the profile sliding device.
• the profile sliding device engages the profile in the feed direction of the profile behind the bending tool, between the profile sliding device and the bending tool or in front of the profile sliding device.
• one of these positions can be advantageous for separating the profile. The invention is explained in more detail below with reference to the single FIGURE.
• a bending machine 1 for bending for example, Rundroh Ren 100 is shown schematically.
• the bending machine 1 shown in the figure is a so-called multi-groove bending machine.
• the bending machine 1 has a bending tool 3 that forms a bending axis 5.
• the bending tool 3 has a plurality of bending templates 7 which form a bending radius and which are arranged one above the other.
• a swivel arm 9 is provided which can be swiveled about the bending axis 5 and on which clamping jaws 11 are arranged, which interact with the bending template 7 to fix the round tube 100 to be bent.
• the profile separating device 15 is arranged on the swivel arm 9 and can thus be swiveled by means of the swivel arm 9.
• the separating device 19 has a recess 21 which forms a separating area and extends as far as the edge of the tool head 17. As a result, an opening is formed through which a round tube 100 to be separated can be inserted in the radial direction of the round tube 100 and also in the radial direction of the tool head 17.
• the bending machine according to the invention has a profiling device, not shown, via which the round tube 100 can be moved in the vertical and horizontal directions, as indicated by the double arrow.
• the round tube 100 can be arranged on the one hand in the corresponding bending template 7 and, on the other hand, can also be introduced into the recess 21 of the tool head 17 of the profile separating device 15 by a vertical movement.
• the separating device 19 is designed as an orbital cutting device and has knife carriers, not shown, with cutting knife wheels arranged thereon, which are guided around the round tube 100 to be separated during the cutting process and are in radial Rieh- direction of the round pipe to be cut can be delivered. In this way, the round tube 100 can be cut without cutting.
• the tool holder 13 can in principle be designed such that it has a bearing device via which the tool head 17 is rotatably mounted and / or displaceable in the horizontal direction.
• the tool head 17 can be aligned with respect to the round tube 100, so that when the round tube 100 is inserted into the recess 21 and thus into the separation area, separation can take place at the desired position of the round tube 100.
• the Profiltrennvor device 15 engages the round tube 100 in the tube direction behind the bending templates 7 and there executes the separating cut.
• the tool head 17 can also be arranged at a different point on the round tube 100.
• the bending machine 1 can have a profile sliding device 23 arranged in the longitudinal direction of the pipe in front of the bending tool 3 with a fold smoothing device 25 interacting with it, and the tool head 17 can act between the profile sliding device 23 and the bending tool 3.
• curved pipe sections of a round pipe 100 can be produced in a particularly advantageous manner, with only little or no material scrap being produced. This makes it possible to manufacture the pipe sections in a particularly economical manner.
• the embodiment of the bending machine 1 according to the invention shown in FIG. 1 has the particular advantage that an already existing profile guide device is used for the vertical feeding of the round pipe 100 to be cut to the profile cutting device 15.
• the tool head 17 is moved by means of the tool holder 13 in the direction of the round tube 100 to be separated, in that the tool holder 13 is designed, for example, as a robot arm.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Bending Of Plates, Rods, And Pipes (AREA)
• Shaping Of Tube Ends By Bending Or Straightening (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=74874830

Family Applications (1)

Country Status (11)

Family Cites Families (11)

• 2020
  • 2020-03-23 DE DE102020107919.2A patent/DE102020107919A1/de active Pending
• 2021
  • 2021-03-10 BR BR112022017331A patent/BR112022017331A2/pt unknown
  • 2021-03-10 CA CA3174019A patent/CA3174019A1/en active Pending
  • 2021-03-10 MX MX2022010504A patent/MX2022010504A/es unknown
  • 2021-03-10 US US17/911,351 patent/US20230134903A1/en active Pending
  • 2021-03-10 CN CN202180023461.9A patent/CN115335159A/zh active Pending
  • 2021-03-10 EP EP21712083.1A patent/EP4126409A1/de active Pending
  • 2021-03-10 KR KR1020227036703A patent/KR20220152395A/ko unknown
  • 2021-03-10 WO PCT/EP2021/056061 patent/WO2021190935A1/de unknown
  • 2021-03-10 AU AU2021243260A patent/AU2021243260A1/en active Pending
• 2022
  • 2022-08-12 ZA ZA2022/09077A patent/ZA202209077B/en unknown

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