Bending device

Abstract

According to one embodiment of the present disclosure, provided is a bending device for bending a workpiece, the bending device comprising: a base; a chuck (Chuck) part which is provided on the base and fixes the position of the workpiece during operation; a bending unit that is a multi-joint robot provided on the base, bends a workpiece on both sides of the Chuck unit, and is provided so as to be movable in the longitudinal direction of the base; and a support section that is provided as a multi-joint robot provided on the base so as to be movable in the longitudinal direction of the base and that supports a workpiece, the support section being provided so as to be able to move in the longitudinal direction of the base when the workpiece is bent by the bending section, with the chuck section as a reference, further away from the longitudinal direction of the base than the bending section, and the support section being provided so as to be able to move in the longitudinal direction of the base when the workpiece is bent by the bending section. Therefore, the end part side of the processed object is kept in a supporting state while the processed object is moved.

Description

Technical Field

[0001] This utility model relates to a bending device. Background Technology

[0002] Generally, bending devices are equipment used to automatically bend metal wires, bars, or other workpieces to form machinery or parts. Bending devices can flexibly change the bending angle and direction, and can even easily bend and form three-dimensional parts.

[0003] Patent Document 1 relates to a dual-head bending machine having multiple robots for performing bending. A feature of Patent Document 1 is that a chuck for fixing the bending robots and the workpiece is movably mounted on a track device. However, since the chuck is only for fixing the workpiece, while movably mounting the chuck facilitates feeding and unloading, it is difficult to improve the processing quality of the workpiece.

[0004] Patent Document 2 discloses a dual-head bending device applicable to a simple bending robot structure. Patent Document 2 discloses an auxiliary gripper (holding body) included for achieving fine machining, but it is positioned between the chuck and the bending section to hold only the straight portion of the workpiece. Moreover, due to the presence of this structure, it is difficult to machine the portion adjacent to the chuck.

[0005] The demand for bending devices that can reduce product manufacturing costs, perform bending effectively, and bend smoothly regardless of the length of the workpiece is gradually increasing.

[0006] Existing technical documents

[0007] Patent documents

[0008] Patent Document 1: Japanese Patent Registration No. 6619560

[0009] Patent Document 2: European Patent Registration No. 1955789 Utility Model Content

[0010] The problem to be solved

[0011] According to one embodiment of the present disclosure, a bending apparatus is provided that can smoothly perform bending regardless of the length of the workpiece.

[0012] Furthermore, a bending device is provided that can prevent the workpiece from sagging, thereby improving the quality of the bent workpiece.

[0013] Furthermore, it provides bending devices that reduce manufacturing costs and are commercially viable.

[0014] The problem to be solved by one embodiment of this disclosure is not limited to the above-described content.

[0015] Solution to the problem

[0016] According to one embodiment of this disclosure, a bending device is provided for bending a workpiece. The bending device includes: a base; a chuck portion disposed on the base and used to fix the position of the workpiece during operation; a bending portion, which is a multi-joint robot disposed on the base, performs bending of the workpiece on both sides of the chuck portion and is movably disposed in the length direction of the base; and a finger portion, which is a multi-joint robot disposed on the base, is movably disposed in the length direction of the base and is configured to support the workpiece. If the workpiece finishes an operation corresponding to a predetermined length, the finger portion moves toward the part of the workpiece where the operation has ended and is configured to support the workpiece.

[0017] Furthermore, a bending device is provided, wherein when the workpiece has not completed an operation corresponding to a predetermined length, the finger portion is located at the part of the workpiece where the operation has not ended, and is configured to support the workpiece.

[0018] Furthermore, a bending device is provided, wherein when the workpiece has not completed the operation corresponding to a predetermined length, the finger is configured to be able to rotate in the circumferential direction of the workpiece and move in the extension direction, and after the workpiece has completed the operation corresponding to the predetermined length, it is configured to be able to rotate only in the circumferential direction of the workpiece.

[0019] Furthermore, a bending device is provided, wherein the finger portion continuously supports the workpiece until the operation on the workpiece is completed.

[0020] Furthermore, a bending device is provided, wherein the chuck portion is disposed at the center of the base, the bending portion is disposed on one side and the other side of the base, and the finger portion is disposed on one side and the other side of the base.

[0021] Furthermore, a bending device is provided, wherein the base includes: a bending portion guide, the bending portion being configured to be movable in the length direction of the base; and a finger portion guide, the finger portion being configured to be movable in the length direction of the base, the bending portion guide being configured to be longer than the finger portion guide.

[0022] Furthermore, a bending device is provided, wherein the number of rotation axes of the finger portion is set to be the same as or greater than the number of rotation axes of the bending portion.

[0023] Furthermore, a bending device is provided, wherein the finger portion includes: a first workpiece placement portion that supports the workpiece in a manner that allows it to rotate in the circumferential direction and move in the extension direction; and a second workpiece placement portion that supports the workpiece in a manner that allows it to rotate only in the circumferential direction of the bent portion after the workpiece has completed an operation corresponding to a predetermined length. When the workpiece is being processed, the first workpiece placement portion is located between the bent portion and the chuck portion. When the workpiece is being processed in a manner corresponding to a predetermined length, the chuck portion, the bent portion, and the second workpiece placement portion are arranged in that order.

[0024] Furthermore, a bending device is provided, wherein the first workpiece placement portion is configured to be rotatably disposed on a pair of clamp portions at the end of the finger portion having a plurality of first roller portions, the first roller portions being configured to have a smaller cross-sectional area as they approach the center, and if the clamp portions are rotated and closed, the workpiece is located on the center side of the first roller portions and is supported.

[0025] Furthermore, a bending device is provided, wherein the second workpiece placement portion is configured to have a plurality of second roller portions on one side and the other side of a pair of clamp portions at the end of the finger portion in a rotatable manner, the second roller portions being arranged alternately to support the workpiece.

[0026] The effects of the invention

[0027] The bending apparatus of the present disclosure can effectively perform bending operations regardless of the length of the workpiece.

[0028] Furthermore, it can prevent the workpiece from sagging, thereby improving the quality of bending operations.

[0029] Furthermore, it simplifies the structure of the curved section, thereby saving manufacturing costs. Attached Figure Description

[0030] Figure 1 This is a perspective view of a bending device according to an embodiment.

[0031] Figure 2 A diagram illustrating the curved portion of a bending device according to an embodiment.

[0032] Figure 3 A diagram illustrating the finger portion of a bending device according to an embodiment.

[0033] Figure 4 A diagram illustrating a finger unit of a bending device according to an embodiment.

[0034] Figure 5 This is a perspective view of a bending device according to another embodiment.

[0035] Figures 6 to 10 A diagram illustrating the operation of a bending device according to an embodiment.

[0036] Figure 11 This diagram illustrates the operation of a finger in a simplified embodiment. Detailed Implementation

[0037] The specific embodiments of the present invention will now be described with reference to the accompanying drawings. The detailed description below will help to fully understand the methods, apparatus, and / or systems described herein. However, this is merely illustrative, and the present invention is not limited thereto.

[0038] In describing the embodiments of this utility model, detailed descriptions of related prior art will be omitted if it is determined that such detailed descriptions would unnecessarily obscure the essence of this utility model. Furthermore, the terminology used below, defined in consideration of the functionality of this utility model, may vary depending on the intentions or conventions of the user, implementer, etc. Therefore, it should be defined based on the entire text of this specification. The terminology used in the detailed description is only for describing embodiments of this utility model and should not be construed as limiting. Unless explicitly used differently, the singular form includes the meaning of the plural form. In this description, expressions such as "comprising" or "having" are intended to indicate a feature, number, step, action, element, part or combination thereof, and should not be construed as excluding the presence or possibility of one or more other features, numbers, steps, actions, elements, part or combination thereof other than those described.

[0039] Furthermore, terms such as "first" and "second" can be added for the sake of sequence, distinction, or ease of explanation. For example, they can be used to distinguish situations where a structure performs the same function but is used in different locations or additional structures. Therefore, terms such as "first" and "second" can be omitted.

[0040] Figure 1 A figure illustrating a bending device 100 according to an embodiment of the present disclosure. (Refer to...) Figure 1 The bending device 100 of one embodiment of the present disclosure includes a base 1, a chuck portion 2, a bending portion 3, and a finger portion 4.

[0041] The bending apparatus 100 of one embodiment of this disclosure can bend the workpiece continuously or intermittently. The workpiece can be a metal wire, a bar, a long material whose cross-section is not circular, etc. The material that can be the workpiece is not limited by material or shape, as long as it can be bent by the bending unit of the bending section 3 described later.

[0042] The base 1 provides space for the installation or movement of the equipment described later. The base 1 can be configured to be symmetrical about the center in the width direction.

[0043] The base may include: a first base 11, disposed at the center of the base in the width direction; and a second base 12, disposed on both sides of the first base 11. With respect to the ground, the second base 12 may be higher than the first base 11.

[0044] The base 1 may include a bending guide 121, which allows the bending portion 3 to move. The bending guides 121 may be arranged in pairs on the upper surface of the second base 12. This provides stable support for the bending portion 3.

[0045] The bending guide 121 can be used as long as the bending part 3 can move along the length direction of the base 1, and there are no restrictions on the shape or type of the guide. For example, the bending guide 121 can be configured as an LM guide, a rack and pinion, or other forms.

[0046] The bending guide 121 can be disposed on the upper surface of the base 1. Specifically, it can be disposed on the upper side of the second base 12 in the base 1. More specifically, since the second base 12 is disposed on both sides of the first base 11, the bending guide 121 can also be disposed on both sides of the base 1 in the width direction.

[0047] The base 1 may include finger guides 111, which allow the finger 4 to move along the length of the base 1. The finger guides 111 may be arranged in pairs on the upper surface of the first base 11. This provides stable support for the finger 4.

[0048] The finger guide 111 can move the finger 4 along the length direction of the base 1, and there are no restrictions on the shape or type of the guide. For example, the finger guide 111 can be configured as an LM guide, a rack and pinion, or other forms.

[0049] The finger guide 111 can be disposed on the upper surface of the base 1. Specifically, it can be disposed on the first base 11 in the base 1. More specifically, it can be disposed on the upper surface of the first base 11.

[0050] More than one finger 4 can be provided on the finger guide 111. Specifically, the number of finger 4 provided on the finger guide 111 can be the same as the number of curved portions 3. That is, more than one finger 4 can move along the finger guide 111 in the length direction of the base 1.

[0051] The finger guide 111 may be shorter than the bending guide 121. In this case, the finger 4 can be configured as a robot with the same or more axes of rotation as the bending portion 3. This will be described later.

[0052] Furthermore, the finger guide 111 and the bending guide 121 can be arranged parallel to each other. As a result, the finger 4 and the bending part 3 can move in the longitudinal direction of the base 1 without interfering with each other.

[0053] The bending guide 121 may be longer than the finger guide 111. That is, although the finger 4 has a shorter movable distance compared to the bending portion 3, the bending operation of one embodiment of this disclosure can be performed smoothly. Details of this will be described later.

[0054] The chuck section 2 can fix the workpiece. The chuck section 2 can fix the position of the workpiece during the bending operation. Therefore, during the bending period performed by the bending section 3, the workpiece is in an accurate position, thereby improving the efficiency of the workpiece processing operation and improving the quality of the workpiece.

[0055] The chuck portion 2 can be disposed on the base 1. Specifically, the chuck portion 2 can be disposed on the first base 11 in the base 1. The chuck portion 2 can be located at the center in the width direction of the base 1. The chuck portion 2 can be located at the center in the length direction of the base 1. The chuck portion 2 can be located at the center of the base 1. More specifically, the chuck portion 2 can be located on the first base. In this case, the chuck portion 2 can be located outside the aforementioned finger guide 111. Thus, with reference to the chuck portion 2, bending operations can be performed independently in front of and behind the base in the length direction.

[0056] The chuck section 2 can be provided to extend upward from the ground relative to the upper surface of the first base 11. The length of the extension of the chuck section 2 should be determined with consideration of the fact that the bending section 3 and the finger section 4 are configured as a multi-joint robot, to prevent interference between the various structures during the bending operation, and not to restrict the direction of the bending operation.

[0057] The bending section 3 is configured to bend the workpiece. When a workpiece is supplied, the bending section 3 bends the workpiece using the bending unit. The bending section 3 can perform bending while moving from the end of the workpiece toward the chuck section 2.

[0058] The bending section 3 can be configured as a multi-joint robot. A multi-joint robot means a robot with multiple axes of rotation, such as a 3-axis or 6-axis robotic arm.

[0059] The curved portion 3 can be provided on the base 1. The curved portion 3 can be provided on the second base 12. The curved portion 3 can be movably provided in the curved portion guide 121 located on the upper surface of the second base 12 in the length direction of the base 1.

[0060] Multiple bending portions 3 can be provided. When multiple bending portions 3 are provided, the bending portions 3 can be provided in pairs on both sides of the base 1. Thus, the chuck portion 2 can be located on the center side of the base 1, and the bending portions 3 can be located on the second base 12 on both sides respectively, so that bending can be performed independently on both sides with reference to the chuck portion 2.

[0061] The following description focuses on a configuration with two curved portions 3. While it is preferable to have multiple curved portions 3, this is not a limitation. The following description serves as an example. Furthermore, the curved portions 3 can each be configured with the same shape. The curved portion 3 located on one side of the base 1 can be designated as the first curved portion 3, and the curved portion 3 located on the other side of the base 1 can be designated as the second curved portion 3. However, for ease of explanation, only one curved portion 3 will be described. That is, the second curved portion 3 can be configured identically to the first curved portion 3; therefore, the description of the second curved portion 3 can be omitted.

[0062] The bending section 3 includes a bending section base 31, a bending section motor 32, a bending robotic arm 33, and a bending unit 34.

[0063] The bending base 31 can be connected to the bending guide 121 to support the bending part 3. The bending base 31 can provide space for the bending robotic arm 33 and the bending motor 32 to be combined.

[0064] The bending motor 32 moves the bending base 31 in the bending guide 121 to provide power that allows the bending part 3 to move.

[0065] The bending robotic arm 33 is part of a multi-joint robot and is equipped with the bending unit 34 described later.

[0066] The bending robotic arm 33 can be configured as a robotic arm with three rotation axes. While the bending robotic arm 33 can also be configured as a robotic arm with six rotation axes, each axis requires its own motor for independent operation. Therefore, using the bending robotic arm 33 with six rotation axes increases manufacturing costs. However, the bending operation according to an embodiment of this disclosure can be performed smoothly whether the bending robotic arm 33 is configured as a three-axis robotic arm or a six-axis robotic arm.

[0067] The bending unit 34 can be a bending head that performs the bending operation. There are no restrictions on the bending head.

[0068] The bending unit 34 is rotatably disposed at the end of the bending robotic arm 33.

[0069] The bending unit 34 can be disposed at the end of the bending robotic arm 33. Thus, the bending unit 34 can be moved to the part where the workpiece is located.

[0070] If the chuck section 2 fixes the position of the workpiece, the bending section 3 can move from the end of the workpiece to the desired position and perform bending. The bending section 3 can perform the bending operation while moving towards the chuck section 2.

[0071] The finger part 4 can be a multi-joint robot mounted on the base 1. As described above, the finger part 4 can be configured as a 3-axis or 6-axis robotic arm. The finger part 4 can support the workpiece. Specifically, the finger part 4 can prevent sagging at the end of the workpiece.

[0072] The finger portion 4 is movably positioned along the length of the base 1. As described later, the finger portion 4 may include a first finger portion and a second finger portion. However, since the finger portions are arranged in the same form, only one finger portion 4 will be described. The first finger portion 4 and the second finger portion 4 can be placed on the finger guide 111 and are configured to move along the length of the base 1.

[0073] The finger part 4 can assist the operation of the bending part 3.

[0074] From the start of the bending process at the bending section 3 until the end of the bending process, the finger section 4 can assist in the operation of the bending section 3. Details regarding this will be described later.

[0075] The finger portion 4 may include: a first finger portion for assisting the operation of the first bending portion 3; and a second finger portion 4 for assisting the operation of the second bending portion 3. The number of fingers 4 may be the same as the number of bending portions 3. However, as described above, this is based on the example of one finger portion.

[0076] The finger part 4 may include a finger base 41, a finger motor 42, a finger robotic arm 43, and a finger unit 44.

[0077] The finger base 41 can be connected to the finger guide 111, so that the finger 4 can move in the length direction of the base 1.

[0078] The finger base 41 provides space for mounting the finger motor 42 and the finger robotic arm 43.

[0079] The finger motor 42 can provide power so that the finger 4 can move along the length of the base 1.

[0080] The finger robotic arm 43 can be configured as a multi-joint robot.

[0081] Preferably, the finger robotic arm 43 can be configured as a multi-joint robot with six axes of rotation. This is because if bending operations of a specified length or more are performed, the finger robotic arm 43 supports the end of the workpiece, thus requiring it to be positioned in multiple locations as bending operations are performed. However, in repetitive bending operations, even if configured as a multi-joint robot with three axes of rotation, it is acceptable as long as the support function can be performed smoothly.

[0082] The finger unit 44 may be located at the end of the finger robotic arm 43. The finger unit 44 may include a clamping part 440, a first workpiece placement part 441, and a second workpiece placement part 442.

[0083] Specific details on this will be provided later.

[0084] Figure 2 The curved section 3 is shown. (Refer to...) Figure 2 The bending section 3 is disposed on the base 1 and is movably disposed along the length of the base 1. The bending section 3 performs the bending operation on the workpiece.

[0085] The bending robotic arm 33 of the bending section 3 may have three rotation axes A1, A2, and A3. However, as mentioned above, even with six rotation axes, the operation can be performed smoothly. The bending section 3 can be configured to operate independently of the three rotation axes.

[0086] The bending robotic arm 33 may include a first rod 33a and a second rod 33b. The first rod 33a extends from the bending base 31 in the height direction of the base 1. The second rod 33b is disposed at the end of the first rod 33a and is rotatably disposed relative to the first rod 33a. The bending unit 34 is rotatably disposed at the end of the second rod 33b.

[0087] The bending portion 3 may include an auxiliary finger portion 35. The auxiliary finger portion 4 may include a first extension portion 351, a second extension portion 352, and an auxiliary finger unit 353.

[0088] The first extension 351 is combined with the bending robotic arm 33 and extends along the length of the base 1. The distance between the auxiliary finger portion 35 and the bending unit 34 can be determined based on the length of the first extension 351.

[0089] The first extension 351 extends from the bending robotic arm 351 toward the chuck portion 2. Thus, the bending portions 3 on both sides extend toward the chuck portion 2 and support the workpiece. Therefore, the auxiliary finger portion 35 supports the portion of the workpiece before it is processed.

[0090] The second extension 352 may be a portion that extends from the first extension 351 in the height direction of the base 1. The first extension 351 and the second extension 352 may be formed as one piece.

[0091] The auxiliary finger unit 353 can be disposed at the end of the second extension 352 and can be rotated. The auxiliary finger unit 353 can be disposed in the same form as the first workpiece placement part 441 described later.

[0092] For example, the auxiliary finger unit 353 can be provided with three roller sections, and the cross-sectional area of ​​each roller section can be smaller the closer it is to the center. Thus, the workpiece can be placed at the center of each roller section.

[0093] The roller sections can be arranged sequentially based on the placement of the workpiece. That is, the auxiliary finger unit 353 can be configured with two roller sections on one side and one roller section on the other side.

[0094] Figure 3 To illustrate the finger part, Figure 4 The diagram illustrates various embodiments of the finger unit.

[0095] The finger robotic arm 43 can be a multi-joint robot with six rotation axes B1, B2, B3, B4, B5, and B6. Furthermore, as described above, it is movably positioned along the length of the base 1 and can support the workpiece.

[0096] The finger robotic arm 43 can be configured to operate independently on six rotating axes.

[0097] The finger robotic arm 43 can be located on the finger base 41. Specifically, the first lever 43a can be located on the finger base 41 and rotate relative to the finger base 41.

[0098] The second rod 43b may be disposed at the end of the first rod 43a. Specifically, the second rod 43b is connected to the first rod 43a in a manner that allows it to rotate relative to the first rod 43a.

[0099] The third rod 43c may be disposed at the end of the second rod 43b. Specifically, the third rod 43c is connected to the second rod 43b in a manner that allows it to rotate relative to the second rod.

[0100] The third rod 43c may include: a first part 43c1, which is rotatably connected to the second rod 43b for extension; a second part 43c2, which is rotatably configured relative to the first part 43c1; a third part 43c3, which is combined with the second part 43c2 and is rotatably configured relative to the second part 43c2; and a fourth part 43c4, which is combined with the third part 43c3 and is rotatably configured relative to the third part 43c3.

[0101] That is, the finger part 4 may include a rotation axis B1 between the first rod 43a and the finger part base 41, a rotation axis B2 between the first rod 43a and the second rod 43b, a rotation axis B3 between the second rod 43b and the third rod 43c, a rotation axis B4 between the first part 43c1 and the second part 43c2, a rotation axis B5 between the second part 43c2 and the third part 43c3, and a rotation axis B6 between the third part 43c3 and the fourth part 43c4.

[0102] Figure 4 (a) of Figure 4 Part (b) is a diagram illustrating a first embodiment of the finger unit. Figure 4 Part (c) and Figure 4 Part (d) is a diagram showing a second embodiment of the finger unit.

[0103] The finger unit 44 includes a first workpiece placement portion 441 and a second workpiece placement portion 442.

[0104] The first workpiece placement section 441 can be configured to allow the workpiece to be introduced and rotated in the circumferential direction, while the second workpiece placement section 442 is configured to rotate only in the circumferential direction of the workpiece.

[0105] The finger unit 44 may include a clamp portion 440, which is rotatably disposed at the end of the finger portion 4. A first workpiece placement portion 441 and a second workpiece placement portion 442 may be disposed on the clamp portion 440.

[0106] The first workpiece placement portion 441 may be provided at the ends of the clamp portions 440 on both sides. The first workpiece placement portion may be configured as a combination of the first roller portion 4411.

[0107] The first roll section 4411 can be configured as a cylindrical shape with a smaller cross-section closer to the center, so that the workpiece can be placed there. That is, it can be configured as an hourglass shape.

[0108] Therefore, if the clamp portion 440 rotates and closes, the workpiece can be placed on the center side of the first roll portion 4411 and supported.

[0109] At this time, since the workpiece is not compressed, the workpiece can be introduced. Two first roll sections 4411 can be provided on one side, and one first roll section 4411 can be provided on the other side.

[0110] Reference Figure 4 Part (a) and Figure 4In part (b), a second roll section 4421 may be provided on one side. The various second roll sections 4421 may be arranged in an alternating manner, supporting the workpiece in the alternating portions. A recess may be provided on the other side, thereby allowing the workpiece to be placed between the recess and the second roll section 4421 when the clamp section 440 is closed. In this case, the recess can guide the workpiece and support it regardless of its diameter.

[0111] In other words, the second roll portion 4421 can be disposed on both sides of the clamp portion 440 in the width direction, with the second roll portion 4421 disposed on different shafts on one side in the width direction, and a portion of the second roll portion 4421 can be disposed in an overlapping manner. The workpiece can be placed on the outside of the overlapping portion of the second roll portion 4421. Thus, even if the cross-sectional size of the workpiece increases, the workpiece can be positioned to detach from the precise location.

[0112] Reference Figure 4 Part (c) and Figure 4 Alternatively, a second roll section 4421 may be provided on the other side of section (d). In this case, the workpiece may be placed in and supported in the portion of the second roll section 4421 that is arranged alternately.

[0113] Furthermore, the second workpiece placement portion 442 may include a first guide 443 disposed on the clamp portion 440 and a second guide 444 disposed on the outside of the second roll portion 4421.

[0114] The first guide 443 and the second guide 444 can be configured to guide the workpiece toward the second workpiece placement portion 442 even if the workpiece is not accurately positioned, as the clamp portion 440 closes. Specifically, they can be configured as recesses with the center portion recessed inward.

[0115] Figure 5 This is a perspective view of a bending device according to an embodiment of the present disclosure.

[0116] exist Figure 5 In this case, the form of the auxiliary finger portion 35 is shown. Since it has already been... Figure 1 and Figure 2 The explanation has already been provided, therefore, the explanation here will be omitted.

[0117] Figures 6 to 10 This is an operational diagram of a bending device according to an embodiment of the present disclosure.

[0118] Figure 6 The workpiece is shown being fed. In terms of the workpiece, the bending section 3 can supply the workpiece from the outside of the bending device 100 into the bending device 100.

[0119] Reference Figure 7 If the workpiece is held in the chuck section 2, the finger section 4 operates in a manner that prevents the workpiece from dislodging from the correct position. At this time, the first workpiece placement section 441 is used.

[0120] Reference Figure 8 If the supply of the workpiece is stopped, the bending section 3 is activated. The workpiece is inserted into the bending unit 34, and the bending section 3 performs the bending operation. The bending process of the workpiece can start from the end of the workpiece.

[0121] At this time, the auxiliary finger portion 35 can always support the unbent portion of the workpiece. At this time, the finger portion 4 can also be closer to the chuck portion 2 than the bent portion 3 to support the workpiece.

[0122] At this time, the bending section 3 begins to perform a bending operation from the end of the workpiece and moves towards the chuck section 2. Accordingly, the finger section 4 can also move towards the chuck section 2.

[0123] Reference Figure 9 and Figure 10 In the finger section 4, if the operation of the workpiece is carried out to a predetermined extent, the clamp section 440 can be opened, so that the first workpiece placement section 441 is removed from the workpiece position and supports the bent part.

[0124] That is, if the workpiece is operated in accordance with the predetermined length of the curved part 3, the finger part 4 can support the workpiece in a position further away from the chuck part 2 than the curved part 3, with the direction of the workpiece's extension as the reference.

[0125] In other words, if the workpiece finishes operation corresponding to a predetermined length, the finger 4 can move toward the part of the workpiece where the operation has ended and support the workpiece.

[0126] When the finger 4 moves toward the part of the workpiece where the operation has ended and supports the workpiece, the workpiece can be located in the second workpiece placement part 442. If the workpiece is placed in the second workpiece placement part 442, the introduction of the workpiece cannot be realized. Therefore, the workpiece can be supported in the same position.

[0127] Therefore, even when the workpiece is very long, sagging can be prevented, thus allowing for accurate bending.

[0128] Furthermore, the finger 4 moves from the part of the workpiece that has not been processed to the part of the workpiece that has been processed, thereby enabling the operation to be performed very close to the chuck 2. Thus, even without additional post-processing, the operation can be effectively completed when the center side of the workpiece needs to be processed.

[0129] The finger part 4 can stop supporting the workpiece from the moment the second workpiece placement part 442 begins to support it, until the workpiece processing is finished. At this time, the finger part 4 can determine the position of the part supporting the workpiece by taking into account the bending direction, bending speed, and the length of the workpiece.

[0130] Since the finger part 4 operates in a manner that supports the part of the workpiece that is not yet finished and supports the part that is finished, the operation can be performed smoothly even if the finger part guide 111 is set to be shorter than the bending part guide 121, and the length of the base can be prevented from becoming too large.

[0131] When the finger part 4 supports the workpiece through the second workpiece placement part 442, it can maintain the support state and move even when the bending part 3 is operated.

[0132] When operated in this way, even if the bending part 3 is operated, it will not interfere with the finger part 4.

[0133] Figure 11 For brevity Figure 9 and Figure 10 The image.

[0134] As mentioned above, this operation is advantageous for processing very long workpieces. If the length of the workpiece becomes very long, the size of the produced product can be increased through bending operations.

[0135] For example, when manufacturing brake lines for automobiles, it's difficult to use them if there are cut surfaces for safety reasons. Therefore, brake lines are produced using a bending device. In this case, by using a long workpiece, brake lines without cut or connecting surfaces can be produced even if the size of the car increases. With the increasing popularity of electric vehicles, the size of not only commercial vehicles but also passenger cars is trending towards larger battery capacities.

[0136] The bending device according to an embodiment of this disclosure can improve the quality of bending operations regardless of the length of the workpiece. This is because when the workpiece is long, although the bending shape makes the sag of the workpiece more severe, the finger portion 4 can prevent sag. Furthermore, when the workpiece is short, even if a complex bend is performed, sag can be prevented. Even if the bend is not complex, one side of the workpiece can be continuously supported. Therefore, the quality of bending can be improved.

[0137] The representative embodiments of this utility model have been described in detail above. However, those skilled in the art will understand that various modifications can be made to the above embodiments without departing from the scope of this utility model. Therefore, the protection scope of this utility model should not be limited to the described embodiments, but should be specified by the claims and equivalent technical solutions.

Claims

1. A bending device for bending a workpiece, characterized in that, Comprising: a base; a chuck portion provided to the base and fixing a position of a workpiece during an operation; a bending portion provided as a multi-joint robot to the base, performing bending of the workpiece on both sides of the chuck portion, and movably provided to a length direction of the base; and a finger portion provided as a multi-joint robot to the base, movably provided to the length direction of the base, and provided in a manner of supporting the workpiece, the bending portion moves from an end of the workpiece to the chuck portion and performs bending, if the workpiece ends the operation corresponding to a predetermined length, the finger portion moves to a portion where the workpiece ends the operation and is provided in a manner of supporting the workpiece.

2. The bending apparatus according to claim 1, wherein when the workpiece does not end the operation corresponding to the predetermined length, the finger portion is positioned at a portion where the workpiece does not end the operation and is provided in a manner of supporting the workpiece.

3. The bending apparatus according to claim 2, wherein when the workpiece does not end the operation corresponding to the predetermined length, the finger portion is provided in a manner of rotating in a circumferential direction of the workpiece and moving in an extending direction, after the workpiece ends the operation corresponding to the predetermined length, the finger portion is provided in a manner of rotating only in the circumferential direction of the workpiece.

4. The bending apparatus according to claim 1, wherein the finger portion continuously supports the workpiece until the operation of the workpiece ends.

5. The bending apparatus according to claim 1, wherein the chuck portion is disposed at a center of the base, the bending portions are disposed at one side and the other side of the base, respectively, the finger portions are disposed at one side and the other side of the base, respectively.

6. The bending apparatus according to claim 5, wherein the base comprises: a bending portion guide in which the bending portion is provided to move in a length direction of the base; and a finger portion guide in which the finger portion is provided to move in the length direction of the base, the bending portion guide is provided to be longer than the finger portion guide.

7. The bending apparatus according to claim 1, wherein a number of rotation axes of the finger portion is provided to be the same as or more than a number of rotation axes of the bending portion.

8. The bending apparatus according to claim 3, wherein a first workpiece placement portion is provided to realize a state in which the workpiece is introduced and rotated in a circumferential direction, and a second workpiece placement portion is provided to realize only a state in which the workpiece is rotated in the circumferential direction, if the workpiece starts to be processed, the first workpiece placement portion is positioned between the bending portion and the chuck portion, and if the workpiece is operated corresponding to the predetermined length, the workpiece is provided in an order of the chuck portion, the bending portion, and the second workpiece placement portion.

9. The bending apparatus according to claim 8, wherein ​ The first processed object placement portion is provided as a plurality of first roller portions provided rotatably on a pair of clip portions provided at the distal end of the finger portion, The first roller portions are provided in a manner in which the cross-sectional area becomes smaller as it approaches the center, If the clip portions are rotated and closed, the processed object is positioned on the center side of the first roller portions and is supported.

10. The bending apparatus according to claim 8, wherein The second processed object placement portion is provided as a plurality of second roller portions provided rotatably on one side and the other side of a pair of clip portions provided at the distal end of the finger portion, The second roller portions are arranged in a staggered manner and support the processed object.

Images