Incremental forming method and device

Abstract

The invention relates to an incremental forming processing method and a device thereof. The incremental forming machining device comprises a clamping seat, a roller head and an elastic supporting piece, the clamping seat is used for fixing a plate, the elastic supporting piece is used for supporting the plate, and during rolling machining, when the roller head rolls the plate to enable the plate to deform, the elastic supporting piece temporarily deforms along with deformation of the plate so as to support the plate. The plate is prevented from collapsing and cracking in the rolling machining process, and different forming molds do not need to be arranged.

Description

Technical Field

[0001] The present invention relates to a progressive forming processing method and apparatus thereof, and particularly to a processing apparatus and method for supporting a sheet material by means of a temporary deformation of an elastic support member as the sheet material deforms during a progressive forming process (such as rolling). Background Art

[0002] Chinese Utility Model Patent Publication No. CN102343386B discloses a "method for gradually forming a workpiece", which drives a first forming tool and a second forming tool along multiple axes (such as different orthogonal X, Y, and Z axes) by a manipulation device to perform progressive forming processing. However, the rolling parameters (such as path parameters, moving speeds, etc.) of the first manipulation device and the second manipulation device must cooperate with each other to move in different orthogonal directions (such as the X, Y, and Z axes). Therefore, when the relative movement amounts of the first manipulation device and the second manipulation device cannot be coordinated, the first forming tool and the second forming tool will apply improper pressure to the workpiece, resulting in the workpiece cracking or failing to be roll-formed. Moreover, since the second manipulation device must move in cooperation with the first manipulation device, setting the relative movement parameters of the first manipulation device and the second manipulation device is relatively complex. Summary of the Invention

[0003] The main object of the present invention is to provide a progressive forming processing method and apparatus thereof, which support a sheet material by an elastic support member to prevent the unformed area from collapsing and cracking due to lack of support when the roller head performs rolling processing on the sheet material, and can simplify the setting of the movement parameters of the elastic support member relative to the roller head, thereby reducing the difficulty of setting the relative movement parameters of the roller head and the elastic support member, and can perform rolling processing of different shapes without setting different forming dies.

[0004] A progressive forming processing apparatus of the present invention is used for rolling a sheet material. The progressive forming processing apparatus includes a clamping seat, a roller head, and an elastic support member. The clamping seat is used to fix the sheet material. The roller head is disposed on one side of the clamping seat, and the roller head is used to perform the rolling processing on the portion of the sheet material to be processed. The elastic support member is disposed on the other side of the clamping seat. The elastic support member has a support surface. During the rolling processing, the elastic support member can move in one direction of the clamping seat or in the opposite direction of the other direction of the clamping seat. The elastic support member is used to support the sheet material, and the roller head is used to roll the sheet material to cause the sheet material to deform, and the support surface generates a temporary concave deformation as the sheet material deforms.

[0005] Preferably, the support surface has a temporary deformation area, and the temporary deformation area generates a temporary concave deformation as the sheet material deforms, and the temporary deformation area supports the formed groove formed after the deformation of the portion to be processed rolled by the roller head.

[0006] Preferably, the support surface has a support area, the sheet has an unprocessed portion, and the support area is used to support the unprocessed portion located outside the forming groove.

[0007] Preferably, the temporary deformation area has a contact surface in contact with the forming groove. Move the elastic support member along the axis and in the other direction, and the area of the contact surface gradually decreases as the elastic support member moves in the other direction.

[0008] Preferably, the support surface has a support area, the sheet has an unprocessed portion, and there is a spacing between the support area and the unprocessed portion, and the spacing gradually increases as the area gradually decreases.

[0009] Preferably, the Young's modulus of the elastic support member is less than that of the sheet.

[0010] Preferably, the yield strength of the elastic support member is less than that of the sheet.

[0011] Preferably, a carrier is further included. The elastic support member is fixed to the carrier, and the carrier is used to drive the elastic support member to move in this direction or in the other direction.

[0012] Preferably, the carrier has a frame body and a receiving groove. The elastic support member is disposed in the receiving groove, and the support surface is higher than the top surface of the frame body.

[0013] Preferably, along another direction perpendicular to this direction, the elastic support member has a first length, the receiving groove has a second length, the first length is greater than the second length, and the difference between the first length and the second length is not greater than 0.5 mm.

[0014] A progressive forming processing method of the present invention includes providing the above progressive forming processing device. First, fix the sheet to the clamping seat, and make the support surface of the elastic support member contact the portion to be processed, and perform the rolling process on the sheet. The roller head moves along the axis perpendicular to the clamping seat and presses against the portion to be processed. Then, perform a rolling process on the sheet with the roller head along a first path once, so that the portion to be processed is deformed, and a forming groove is formed in the portion to be processed. The temporary deformation area of the support surface generates a temporary concave deformation as the sheet deforms, and supports the forming groove. The temporary deformation area has a contact surface in contact with the forming groove.

[0015] Preferably, in the first rolling process, the support surface has a support area, the sheet has an unprocessed portion, and the support area is used to support the unprocessed portion located outside the forming groove. After the first rolling process, the elastic support member is moved along the axis direction, so that the elastic support member moves from the first position to the second position, and the temporary deformation area contacts the bottom of the forming groove. The area of the contact surface gradually decreases as the elastic support member moves along the axis direction, and the distance between the support area and the unprocessed portion gradually increases as the area gradually decreases. Then, the forming groove is subjected to a second rolling process with the roller head along the second path, and the temporary deformation area generates a temporary concave deformation as the sheet deforms and supports the forming groove.

[0016] In the rolling process of the present invention, the sheet is disposed between the roller head and the elastic support member, so that when the roller head rolls the sheet, the elastic support member supports the sheet, and when the sheet is rolled by the roller head, the stress can be released by the elastic support member to avoid the situation of sheet rupture. Moreover, only by setting the movement parameters of the elastic support member relative to the roller head along the axis, multiple rolling processes can be performed on the sheet. Compared with the prior art, the present invention simplifies the setting of the movement parameters of the elastic support member and reduces the complexity of setting parameters. In addition, since the elastic support member has good compression deformation and recovery properties, different-shaped rolling processes can be performed on the same or different sheets without setting different forming dies. Description of the Drawings

[0017] Figure 1 : Exploded perspective view of the incremental forming processing device of the present invention.

[0018] Figure 2 and Figure 3 : Operating schematic diagram of the incremental forming processing device of the present invention.

[0019] Figures 4A to 4G : Partial operating schematic diagram of the incremental forming processing device of the present invention.

[0020]

Main Element Symbol Description

[0021] 10: Sheet 11: Portion to be processed

[0022] 11a: Forming groove 11b: Bottom

[0023] 12: Unprocessed portion 100: Processing device

[0024] 110: Clamping seat 111: Fixture

[0025] 120: Roller head 130: Elastic support member

[0026] 131: Support surface 131a: Temporary deformation area

[0027] 131a1: Contact surface 131b: Support area

[0028] 140: Carrier 141: Frame

[0029] 141a: Top surface 142: Receiving groove

[0030] B: Connection position G: Spacing

[0031] L1: First length L2: Second length

[0032] R1: First path R2: Second path

[0033] Y: Axis Y0: Initial position

[0034] Y1: First position Y2: Second position Detailed implementation manners

[0035] Please refer to Figures 1 to 3 , a progressive forming processing method of the present invention, which performs rolling processing on the sheet 10 by means of the processing device 100. First, the processing method includes providing the processing device 100. The processing device 100 includes a clamping seat 110, a roller head 120 and an elastic support member 130. The clamping seat 110 is used to fix the sheet 10. In this embodiment, the clamping seat 110 has a plurality of clamps 111. The plurality of clamps 111 are used to clamp the sheet 10 so that the sheet 10 is fixed to the clamping seat 110. The roller head 120 is disposed on one side of the clamping seat 110. The roller head 120 is used to perform the rolling processing on the to-be-processed portion 11 of the sheet 10 (as Figure 4A marked) to cause the sheet 10 to deform. The elastic support member 130 is disposed on the other side of the clamping seat 110. The material of the elastic support member 130 can be selected from rubber, silica gel, other suitable elastic materials, or a combination of these materials. The material of the elastic support member 130 may include polymer materials (such as polyurethane, etc.). The elastic support member 130 has good compression deformation and recovery properties, and can return to its original state after compression. Moreover, the Young's modulus of the elastic support member 130 is less than the Young's modulus of the sheet 10, and the yield strength of the elastic support member 130 is less than the yield strength of the sheet 10. In the rolling processing, the elastic support member 130 can move in one direction of the clamping seat 110 or in the opposite direction of the other direction of the clamping seat 110. The elastic support member 130 is used to support the sheet 10.

[0036] Please refer to Figure 2 , Figure 3 and Figure 4A, then, place the plate 10 on the clamping seat 110, and fix the plate 10 to the clamping seat 110 by means of the plurality of clamps 111, and move the elastic support member 130 along the axis Y perpendicular to the clamping seat 110, so that the elastic support member 130 moves from the initial position Y0 to the first position Y1. In this embodiment, when the elastic support member 130 is located at the first position Y1, the support surface 131 of the elastic support member 130 contacts the portion to be processed 11.

[0037] Please refer to Figures 1 to 3 , in this embodiment, the processing device 100 further includes a carrier 140. The elastic support member 130 is fixed to the carrier 140. The carrier 140 can selectively drive the elastic support member 130 to move along the axis Y in the direction towards the clamping seat 110 or in the opposite direction of the clamping seat 110. Preferably, the carrier 140 has a frame 141 and a receiving groove 142. The elastic support member 130 is disposed in the receiving groove 142, and the support surface 131 is higher than the top surface 141a of the frame 141 to prevent the roller head 120 from hitting the frame 141 during the rolling process. In addition, in another direction perpendicular to this direction, the elastic support member 130 has a first length L1, and the receiving groove 142 has a second length L2. The first length L1 is greater than the second length L2, and the difference between the first length L1 and the second length L2 is not greater than 0.5 mm. It should be noted that since there is no significant difference between the first length L1 and the second length L2, for the convenience of illustration, Figure 2 the first length L1 shown is equal to the second length L2. Preferably, the elastic support member 130 can be tightly fitted with the frame 141.

[0038] Please refer to Figures 3 to 4E , perform the rolling process on the plate 10, roll the plate 10 with the roller head 120 to deform the plate 10. The support surface 131 generates a temporary concave deformation as the plate 10 deforms. First, please refer to Figure 4A and Figure 4B , the roller head 120 moves along the axis Y and presses against the portion to be processed 11. Then, please refer to Figure 4B and Figure 4C , perform the first rolling process on the plate 10 with the roller head 120 along the first path R1 to deform the portion to be processed 11 and form a formed groove 11a on the portion to be processed 11. The temporary deformation area 131a of the support surface 131 generates a temporary concave deformation as the plate 10 deforms to prevent breakage during the rolling process. The temporary deformation area 131a supports the formed groove 11a, and the temporary deformation area 131a has a contact surface 131a1 that contacts the formed groove 11a.

[0039] Please refer to Figure 4B and Figure 4C , the support surface 131 has a support area 131b, the plate 10 has an unprocessed portion 12 located outside the forming groove 11a, and the support area 131b is used to support the unprocessed portion 12 located outside the forming groove 11a to prevent the connection position B between the unprocessed portion 12 and the forming groove 11a from cracking during the rolling process. In this embodiment, the distance G between the support area 131b and the unprocessed portion 12 is substantially equal to zero, but this is not a limitation

[0040] Please refer to Figure 4A , Figure 4C and Figure 4D , after the first rolling process, move the elastic support member 130 along the axis Y, so that the elastic support member 130 moves in the other direction opposite to the clamping seat 110, and moves from the first position Y1 to the second position Y2, and make the temporary deformation area 131a contact the bottom 11b of the forming groove 11a. Due to the good resilience of the elastic support member 130, the area of the contact surface 131a1 contacting the forming groove 11a gradually decreases as the elastic support member 130 moves in the other direction opposite to the clamping seat 110, and the distance G between the support area 131b and the unprocessed portion 12 gradually increases as the area A gradually decreases, that is, the distance G is inversely proportional to the area A (i.e., the contact area between the aforementioned elastic support member 130 and the groove 11a).

[0041] Please refer to Figure 4D and Figure 4E , then, the roller head 120 moves along the axis Y and presses against the bottom 11b, and along the second path R2, the roller head 120 performs a second rolling process on the forming groove 11a. Please refer to Figure 4E and Figure 4F , the temporary deformation area 131a generates a temporary concave deformation as the plate 10 deforms, and supports the bottom 11b of the forming groove 11a to prevent the bottom 11b from cracking. Please refer to Figure 4G , according to the desired formed shape, the elastic support member 130 can be moved along the axis Y again, so that the elastic support member 130 moves in the other direction opposite to the clamping seat 110 to a predetermined position, and performs the rolling process after the second rolling process until the portion 11 to be processed is rolled into shape

[0042] Please refer to Figures 4A to 4G, in the rolling process of the present invention, the elastic support member 130 is used to support the sheet 10 to prevent the sheet 10 from cracking when being rolled by the roller head 120. Moreover, only the movement parameters of the elastic support member 130 relative to the roller head 120 along the axis Y need to be set, so as to simplify the setting of the movement parameters of the elastic support member 130 and reduce the complexity of setting the elastic support member 130. In addition, due to the good compression deformation and recovery characteristics of the elastic support member 130, different forming dies do not need to be set, and rolling processes with different shapes can be performed on the same or different sheets.

[0043] Although the foregoing content of the present invention uses a two-stage rolling process to form the sheet with the desired configuration, the present invention is not limited thereto. In other examples, the incremental forming processing device and method of the present invention can adopt at least one-stage method to form the sheet with the desired configuration. Based on the desired configuration to be obtained, the incremental forming processing device and method of the present invention can also perform the same number or different numbers of rolling processes on different regions of the sheet.

[0044] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the equivalent embodiments of equivalent changes within the scope of the technical solution of the present invention by using the above-disclosed technical content. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A progressive forming processing device for rolling a sheet material, characterized in that, the progressive forming processing device comprises: a clamping seat for fixing the sheet material; a roller head disposed on one side of the clamping seat, the roller head for performing the rolling process on a to-be-processed portion of the sheet material; and an elastic support member disposed on the other side of the clamping seat, the elastic support member having a support surface, during the rolling process, the elastic support member can move in one direction of the clamping seat or in the opposite direction of the other direction of the clamping seat, the elastic support member for supporting the sheet material, the roller head for rolling the sheet material to cause the sheet material to deform, and the support surface generates a temporary concave deformation as the sheet material deforms.

2. The progressive forming processing device according to claim 1, characterized in that, the support surface has a temporary deformation area, the temporary deformation area generates a temporary concave deformation as the sheet material deforms, and the temporary deformation area supports a formed groove formed after the deformation of the to-be-processed portion rolled by the roller head.

3. The progressive forming processing device according to claim 2, characterized in that, the support surface has a support area, the sheet material has an unprocessed portion, and the support area is used to support the unprocessed portion located outside the formed groove.

4. The progressive forming processing device according to claim 2, characterized in that, the temporary deformation area has a contact surface in contact with the formed groove, moving the elastic support member along the axis and in the other direction, the area of the contact surface gradually decreases as the elastic support member moves in the other direction.

5. The progressive forming processing device according to claim 4, characterized in that, the support surface has a support area, the sheet material has an unprocessed portion, and there is a spacing between the support area and the unprocessed portion, and the spacing gradually increases as the area gradually decreases.

6. The progressive forming processing device according to claim 1, characterized in that, the Young's modulus of the elastic support member is less than that of the sheet material.

7. The progressive forming processing device according to claim 6, characterized in that, the yield strength of the elastic support member is less than that of the sheet material.

8. The progressive forming processing device according to claim 1, characterized in that, further comprising a carrier, the elastic support member is fixed to the carrier, and the carrier is used to drive the elastic support member to move in this direction or in the other direction.

9. The progressive forming processing device according to claim 8, characterized in that, the carrier has a frame body and a receiving groove, the elastic support member is disposed in the receiving groove, and the support surface is higher than the top surface of the frame body.

10. The progressive forming processing device according to claim 9, characterized in that, along another direction perpendicular to this direction, the elastic support member has a first length, the receiving groove has a second length, the first length is greater than the second length, and the difference between the first length and the second length is not greater than 0.5 mm.

11. A progressive forming processing method, characterized in that, comprises: providing the progressive forming processing device according to any one of claims 1 to 10; fixing the sheet material to the clamping seat and bringing the support surface of the elastic support member into contact with the to-be-processed portion; and The rolling process is performed on the plate material. The roller head moves along the axis perpendicular to the clamping seat to press against the part to be processed. Then, the first rolling process is performed on the plate material with the roller head along the first path, causing deformation of the part to be processed and forming a forming groove in the part to be processed. The temporary deformation area of the support surface generates a temporary concave deformation as the plate material deforms and supports the forming groove. The temporary deformation area has a contact surface that contacts the forming groove.

12. The progressive forming method according to claim 11, wherein, in the first rolling process, the support surface has a support area, and the plate material has an unprocessed part. The support area is used to support the unprocessed part located outside the forming groove. After the first rolling process, the elastic support is moved along the axis direction, so that the elastic support moves from the first position to the second position, and the temporary deformation area contacts the bottom of the forming groove. The area of the contact surface gradually decreases as the elastic support moves along the axis direction, and the distance between the support area and the unprocessed part gradually increases as the area gradually decreases. Then, the second rolling process is performed on the forming groove with the roller head along the second path, and the temporary deformation area generates a temporary concave deformation as the plate material deforms and supports the forming groove.

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