Continuous bending forming die and processing method for special-shaped parts

Abstract

The present invention discloses a continuous bending forming mold and processing method for special-shaped parts, comprising an upper mold and a lower mold, wherein the upper mold makes a reciprocating motion close to and / or away from the lower mold, a material strip for forming the workpiece is arranged between the upper mold and the lower mold, and the material strip moves perpendicular to the closing direction of the upper mold and the lower mold, and an obtuse-angle bending module, a first bevel bending module, a wedge-shaped bending module, a U-shaped bending module, a V-shaped bending module, a second bevel-angle bending module, an arc bending module and a top material assembly are arranged between the upper mold and the lower mold, the wedge-shaped bending module is connected with the U-shaped bending module and the top material assembly, the elastic member comprises a top material block and an elastic member, and the top material block is connected with the lower mold through the elastic member, the structure is simple, and while processing bending with greater difficulty, interference between the semi-finished product and the module is prevented, thereby ensuring continuous processing and convenient and quick processing.

Description

Technical Field

[0001] The invention relates to the technical field of forming equipment, and in particular to a continuous bending forming die and a processing method for special-shaped parts. Background Art

[0002] The sheet metal continuous forming die includes an upper die assembly and a lower die assembly. The upper die assembly reciprocates vertically relative to the lower die assembly to process the sheet metal parts between the upper die assembly and the lower die assembly. For workpieces with more bending parts, a single die cannot achieve continuous bending processing of the workpiece, so a continuous die is required. The continuous die can achieve mass production and improve production efficiency. When the workpiece has a deep U-shaped corner, when bending the workpiece, it is necessary to consider the interference between the bending die and the workpiece, as well as the problem that the workpiece is stuck on the bending die and cannot work continuously. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings, the object of the present invention is to provide a continuous bending forming die and processing method for special-shaped parts.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: a continuous bending forming mold for special-shaped parts, including an upper mold and a lower mold, the upper mold makes a reciprocating motion close to and / or away from the lower mold, and a material strip for forming the workpiece is arranged between the upper mold and the lower mold, and the material strip moves perpendicular to the closing direction of the upper mold and the lower mold, and an obtuse angle bending module, a first bevel bending module, a wedge bending module, a U-shaped bending module, a V-shaped bending module, a second bevel bending module, an arc bending module and a top material assembly are arranged between the upper mold and the lower mold, the wedge bending module is connected to the U-shaped bending module and the top material assembly, and the top material assembly includes a top material block and an elastic member, and the top material block is connected to the lower mold through the elastic member.

[0005] The beneficial effect of the present invention is that a material ejection component is provided, and during the conveying process of the material belt, the material ejection component can eject the bent semi-finished product / workpiece, thereby preventing the semi-finished product / workpiece from being stuck with the bending module and causing material jamming, thereby affecting production continuity, and ensuring that the bent semi-finished product can smoothly enter the next module, reducing interference deformation; a wedge-shaped bending module and a U-shaped bending module are provided, and a U-shaped bend can be processed. Since the bending angle of the U-shaped bend is large, the two modules are used for processing together, which can ensure accuracy while reducing the risk of material jamming, and the processing is convenient and reduces the risk of material jamming; the material ejection component includes an elastic member and a material ejection block, and an external force is applied to the elastic member through the force of the mold closing. The material ejection component stores power as the mold is closed. When the upper mold is away from the lower mold, the material ejection component releases the stored power and automatically ejects the material without the need for additional power. It is convenient, fast and efficient.

[0006] A method for processing a special-shaped part, comprising a continuous bending forming die for the special-shaped part, comprising the following steps:

[0007] Feeding: convey the material strip between the upper mold and the lower mold in a direction perpendicular to the mold closing direction;

[0008] Obtuse angle bending: The obtuse angle bending module processes a first semi-finished product having a first obtuse angle and a second obtuse angle;

[0009] First bevel bending: The first bevel bending module processes the first obtuse angle into the first bevel angle of the second semi-finished product;

[0010] Wedge bending: The wedge bending module processes the second obtuse angle into the wedge angle of the second semi-finished product;

[0011] U-bending: The U-bending module processes the wedge angle into a U-bend to form the third semi-finished product;

[0012] V-bending: The V-bending module processes one side of the U-bending into a V-bending to form the fourth semi-finished product;

[0013] Second bevel bending: The second bevel bending module processes one side of the V-shaped bend into a second bevel;

[0014] Processing completed: the arc bending module processes the fifth semi-finished product into an arc-shaped part, completing the processing of the workpiece;

[0015] Unloading: Remove the workpiece from between the upper and lower dies.

[0016] The beneficial effect of the present invention is that since the workpiece has many bends, through the above steps, interference and deformation at each bend can be prevented while processing the workpiece, and the ejecting component can be used to eject the material after the bending step to prevent material jamming. The ejecting component can be set on different bending modules according to actual needs to cooperate with the bending module for efficient processing, high bending efficiency, and reduced maintenance times.

[0017] Optionally, the obtuse angle bending module includes two groups of obtuse angle bending blocks and bottom support blocks arranged in cooperation, the obtuse angle bending block is arranged on the upper die, the bottom support block is arranged on the lower die, and abutment slopes are arranged on the side where the obtuse angle bending block and the bottom support block are close to each other, and the abutment slopes process the material strip into a first obtuse angle and a second obtuse angle. By processing the obtuse angles with the abutment slopes, the module processing is simple, the cost is reduced, and the inclination of the abutment slopes can be adjusted according to the angles actually required.

[0018] Optionally, the first bevel bending module includes a first bevel block and a second bevel block, the first bevel block is arranged on the upper mold, the second bevel block is arranged on the lower mold, and a slope is provided on the side where the first bevel block and the second bevel block are close to each other, and the slope processes a first bevel.

[0019] Optionally, the wedge-shaped bending module group includes a wedge-shaped bending block and a first bending angle block, the first bending angle block is arranged on the upper mold, the wedge-shaped bending block is arranged on the lower mold, the wedge-shaped bending block includes a rounded corner protrusion, and the first bending angle block is provided with a recess that cooperates with the rounded corner protrusion, and the rounded corner protrusion and the recess cooperate to process a wedge-shaped angle.

[0020] Furthermore, the wedge-shaped bending block cooperates with the ejection assembly. Since the rounded corner protrusion has a large bending angle when the wedge corner is bent, it is easy to get stuck with the wedge corner. Therefore, the ejection assembly is used to eject the rounded corner protrusion to ensure production continuity and reduce the number of maintenance times for operators.

[0021] Optionally, the ejection block includes a slot and a guide hole, the ejection block is arranged on the lower die, the slot runs through the side of the ejection block close to the upper die, the guide hole is arranged on the side of the ejection block away from the upper die and is connected to the slot, a guide column is movably arranged in the slot and the guide hole, the elastic member is sleeved on the guide column, one end of the elastic member is connected to the lower die, and the other end is arranged in the guide hole. The guide column ensures that the ejection block can be directional stable during ejection and reduces skew. In this embodiment, the guide column is arranged to perform reciprocating motion in the vertical direction, that is, to perform reciprocating motion close to and / or away from the upper die in the slot and the guide hole. Of course, the guide column can also be arranged to perform reciprocating motion in the horizontal direction, that is, the same as the feeding direction of the material belt, to achieve side pushing of the semi-finished product. The operator can select according to actual needs.

[0022] Optionally, the U-shaped bending module includes a second bending corner block, a wedge block and a forming block, the second bending corner block is arranged on the upper mold, the wedge block and the forming block are arranged on the lower mold, the wedge block includes a rounded corner abutment block, the second bending corner block includes a bending corner that cooperates with the rounded corner abutment block, and the U-shaped bending module processes a U-shaped bend.

[0023] Optionally, the V-shaped bending module comprises a top buckle block arranged on the upper die and a supporting block arranged on the lower die, the top buckle block comprises an inverted V groove, the supporting block is provided with a protrusion matched with the inverted V groove, and the top buckle block cooperates with the supporting block to process a V-shaped bend. The U-shaped bending angle is changed by the V-shaped bending to form a certain angle with the body of the workpiece to meet the processing requirements of the workpiece.

[0024] Optionally, the second bevel bending module includes a first bevel block provided on the upper die and a second bevel block provided on the lower die, and a bevel surface is provided on a side of the first bevel block and the second bevel block close to each other, and the first bevel block and the second bevel block cooperate to process a second bevel angle. Processing the second bevel angle by the bevel surface facilitates the processing of the module and saves costs.

[0025] Optionally, the arc bending module comprises an arc bending block arranged on the upper die, the arc bending block comprises an arc abutting surface and an avoidance member, and the arc bending block processes an arc part. The avoidance member avoids other adjacent semi-finished products to prevent interference when processing the arc part and reduce defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a workpiece involved in a preferred embodiment of the present invention;

[0027] Figure 2 A front view of a workpiece according to a preferred embodiment of the present invention;

[0028] Figure 3 It is a right side view of an obtuse-angle bending module of a preferred embodiment of the present invention;

[0029] Figure 4 It is a right side view of a first bevel bending module and a wedge bending module of a preferred embodiment of the present invention;

[0030] Figure 5 It is a right side view of a U-shaped bending module and a material ejection assembly according to a preferred embodiment of the present invention;

[0031] Figure 6 It is a right side view of a V-shaped bending module and a material ejection assembly according to a preferred embodiment of the present invention;

[0032] Figure 7 It is a right side view of the second bevel bending module of a preferred embodiment of the present invention;

[0033] Figure 8 A front view of an arc-shaped bending module according to a preferred embodiment of the present invention;

[0034] Fig. 9 It is a schematic diagram of a workpiece processing process according to a preferred embodiment of the present invention.

[0035] In the figure:

[0036] 10-upper die; 11-obtuse angle bending block; 12-first angle block; 13-first angle block; 14-second angle block; 15-top buckle block; 16-first bevel block; 17-arc bending block; 171-arc abutting surface; 172-avoidance member;

[0037] 20-lower die; 21-bottom supporting block; 22-top material block; 221-elastic member; 222-groove; 223-slot; 224-guide column; 23-second angle block; 24-wedge-shaped bending block; 241-rounded protrusion; 25-wedge-shaped block; 251-rounded abutment block; 26-forming block; 27-supporting block; 271-first vertical member; 272-second vertical member; 28-second bevel block;

[0038] 30-workpiece; 31-material strip; 32-first semi-finished product; 321-first obtuse angle; 322-second obtuse angle; 33-second semi-finished product; 331-wedge angle; 332-first bevel angle; 34-third semi-finished product; 341-U-bend; 35-fourth semi-finished product; 351-V-bend; 36-fifth semi-finished product; 361-second bevel angle; 371-arc-shaped part. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0040] Attached Figure 1 and attached Figure 2 They are respectively a three-dimensional schematic diagram and a front view of the workpiece 30 involved in this embodiment, and Figure 1 and attached Figure 2 The workpiece 30 includes a first obtuse angle 321 , a first bevel angle 332 , a U-shaped bend 341 , a second bevel angle 361 and an arc-shaped member 371 .

[0041] As attached Figure 3 and attached Figure 4 As shown, the continuous bending forming mold for the special-shaped part in this embodiment includes an upper mold 10 and a lower mold 20. The upper mold 10 reciprocates relative to the lower mold 20 to achieve movement close to the lower mold 20 and / or away from the lower mold 20. A material strip 31 for producing a workpiece is arranged between the upper mold 10 and the lower mold 20. The material strip 31 is movably arranged between the upper mold 10 and the lower mold 20. The material strip 31 moves perpendicular to the clamping direction of the upper mold 10 and the lower mold 20. The clamping direction refers to the reciprocating motion of the upper mold 10 relative to the lower mold 20 in the vertical direction, and the material strip 31 moves in the horizontal direction. The material strip 31 can be fed to the space between the upper die 10 and the lower die 20 through the unwinding device to realize processing and forming. Those skilled in the art can adaptively select the unwinding device according to actual needs. A blunt-angle bending module, a first bevel bending module, a wedge-shaped bending module, a U-shaped bending module, a V-shaped bending module, a second bevel bending module, an arc-shaped bending module and a ejecting assembly are provided between the upper die 10 and the lower die 20. The ejecting assembly is used to eject the processed semi-finished products to prevent the semi-finished products from being trapped in the module and affecting subsequent processing. The wedge-shaped bending module and the U-shaped bending module are respectively connected to the ejecting assembly.

[0042] As attached Figure 3 As shown, the obtuse-angle bending module includes an obtuse-angle bending block 11 and a bottom support block 21 which is arranged in cooperation with the obtuse-angle bending block 11. The obtuse-angle bending block 11 is arranged on the upper mold 10, and the bottom support block 21 is arranged on the lower mold 20. A contact bevel for bending the material strip 31 is provided on the side where the obtuse-angle bending block 11 and the bottom support block 21 are close to each other. The contact bevel is arranged in cooperation with the angle at which the workpiece 30 needs to be bent. The upper and lower molds are combined to process a first semi-finished product 32. The first semi-finished product 32 includes a first obtuse angle 321 and a second obtuse angle 322.

[0043] Exemplarily, in this embodiment, the obtuse-angle bending blocks 11 are arranged into two symmetrical groups, and the bottom support blocks 21 are arranged into two symmetrical groups cooperating with the obtuse-angle bending blocks 11, the axis of symmetry is parallel to the mold closing direction, and the position of the obtuse-angle bending blocks 11 can bend the two side ends of the material strip 31.

[0044] As attached Figure 4 As shown, the first bevel bending module includes a first angle block 12 and a second angle block 23. The positions of the first angle block 12 and the second angle block 23 are matched with the position of the first obtuse angle 321. The first angle block 12 is arranged on the upper mold 10, and the second angle block 23 is arranged on the lower mold 20. A slope for bending the first obtuse angle 321 is provided on the side where the first angle block 12 and the second angle block 23 are close to each other. The slope bends the first obtuse angle 321 to form a first bevel angle 332.

[0045] In an example of the present embodiment, the second angle block 23 is connected to the top material assembly, which includes a top material block 22 and an elastic member 221 connected to the top material block 22. The top material block 22 is movably arranged on the lower mold 20 through the elastic member 221. The elastic member 221 enables the top material block 22 to reciprocate relative to the lower mold 20 toward and / or away from the upper mold 10. The second angle block 23 is arranged on the top material block 22. The top material block 22 is provided with a groove 222 on the side close to the lower mold 20. One end of the elastic member 221 is arranged in the groove 222, and the other end is arranged on the lower mold 20.

[0046] Optionally, the elastic member 221 is configured as a spring.

[0047] As attached Figure 4As shown, the wedge bending module includes a wedge bending block 24 and a first bending block 13. The positions of the wedge bending block 24 and the first bending block 13 are matched with the position of the second obtuse angle 322. The first bending block 13 is arranged on the upper mold 10, and the wedge bending block 24 is arranged on the lower mold 20. The wedge bending block 24 is provided with a rounded protrusion 241 on the side close to the first bending block 13, and the first bending block 13 is provided with a recess matched with the rounded protrusion 241 on the side close to the wedge bending block 24. The rounded protrusion 241 cooperates with the recess to bend the second obtuse angle 322 into a wedge angle 331, and the first bevel angle 332 and the wedge angle 331 form a second semi-finished product 33.

[0048] In one example of this embodiment, the wedge-shaped bending block 24 is connected to the top material assembly, as shown in the attached Figure 4 As shown, the ejection assembly includes a ejection block 22, a slot 223 and a guide hole. The slot 223 runs through the side of the ejection block 22 close to the upper mold 10, and the guide hole is arranged on the side of the ejection block 22 away from the upper mold 10. The slot 223 is connected to the guide hole. A guide column 224 is arranged in the slot 223 and the guide hole. The guide column 224 is connected to the lower mold 20 through an elastic member 221. The guide column 224 is movably arranged in the slot 223. An elastic member 221 is sleeved on the guide column 224. One end of the elastic member 221 is connected to the lower mold 20, and the other end passes through the guide hole and is arranged in the slot 223. Of course, it can also be arranged only in the guide hole.

[0049] In an example of the present embodiment, the bevel bending module and the wedge bending module are set as a group, and the end of the first angle block 12 on one side away from the second angle block 23 is cooperated with the guide column 224. When the elastic member 221 is in a free state, the guide column 224 is provided with a protruding groove 223 on one side close to the upper mold 10. When the mold is closed, the first angle block 12 abuts against the guide column 224, presses the guide column 224 into the groove 223, and compresses the elastic member 221. When the upper mold 10 is away from the lower mold 20, the elastic member 221 is reset to push the guide column 224 out to achieve material ejection.

[0050] When the upper and lower molds are closed, the first angle block 12 applies a force close to the lower mold 20 to the second angle block 23 and the ejection assembly connected thereto, and the first angle block 13 applies a force close to the lower mold 20 to the wedge-shaped bending block 24 and the ejection assembly connected thereto, so that the ejection assembly has a tendency to move toward the lower mold 20, and the elastic member 221 is compressed by the force, and a reaction force is applied to the first semi-finished product 32 away from the lower mold 20. Due to the effect of the mold closing force, the ejection assembly is in a balanced state. When the upper mold 10 is away from the lower mold 20, the reaction force of the elastic member 221 makes the ejection assembly have a tendency to move toward the upper mold 10. At the same time, the material belt 31 drives the second semi-finished product 33 to move toward the side away from the rounded protrusion 241, so that the wedge-shaped corner 331 of the second semi-finished product 33 will not interfere with the rounded protrusion 241, and the ejection assembly ejects the second semi-finished product 33 to realize ejection;

[0051] As attached Figure 5 As shown, the U-shaped bending module includes a second bending block 14, a wedge block 25 and a forming block 26. The second bending block 14 is arranged on the upper mold 10, and the wedge block 25 and the forming block 26 are arranged on the lower mold 20. The wedge block 25 includes a rounded corner abutment block 251, and the second bending block 14 includes a bending corner that cooperates with the rounded corner abutment block 251. When the upper and lower molds are closed, the side of the forming block 26 close to the upper mold 10 abuts against the edge of the wedge corner 331 of the second semi-finished product 33, and squeezes it until it contacts the rounded corner abutment block 251. The second bending block 14 bends the bending part of the wedge corner 331, so that the wedge corner 331 forms a U-shaped bend 341, and the third semi-finished product 34 is processed.

[0052] In this embodiment, the side of the wedge block 25 away from the forming block 26 is connected to the ejection assembly, and the third semi-finished product 34 moves horizontally and away from the rounded abutment block 251. The ejection assembly then ejects the third semi-finished product 34 to prevent interference.

[0053] As attached Figure 6 As shown, the V-shaped bending module includes a top buckle block 15 and a supporting block 27 cooperating with the top buckle block 15, the top buckle block 15 is arranged on the upper mold 10, and the supporting block 27 is arranged on the lower mold 20. An inverted V groove is provided on the side of the top buckle block 15 close to the supporting block 27, and a protrusion cooperating with the inverted V groove is provided on the supporting block 27. When the upper and lower molds are closed, the inverted V groove cooperates with the protrusion to process a V-shaped bend 351 on one side of the U-shaped bend 341 of the semi-finished product 34 to form a fourth semi-finished product 35.

[0054] Exemplarily, the support block 27 is configured to be L-shaped, that is, the support block 27 includes a first vertical member 271 and a second vertical member 272 that are vertically arranged, a protrusion is arranged on the first vertical member 271, and the second vertical member 272 includes an avoidance slope, which is used to avoid the U-shaped bend 341 after deformation to prevent interference. At the same time, the second vertical member 272 facilitates the setting of the support block 27 on the lower mold 20.

[0055] In this embodiment, the support block 27 is connected to the top material assembly. In another example of the top material assembly, as shown in the attached Figure 6 As shown, the ejection assembly includes a ejection block 22, an elastic member 221 and a guide column 224. The ejection block 22 is connected to the lower mold 20 through the elastic member 221. One end of the elastic member 221 is connected to the ejection block 22, and the other end is connected to the lower mold 20. The lower mold 20 is provided with a receiving groove for accommodating the guide column 224. One end of the guide column 224 is connected to the ejection block 22, and the other end is movably arranged in the receiving groove. During ejection, the restoring force of the elastic member 221 drives the ejection block 22 to complete the ejection action. The guide column 224 cooperates with the receiving groove to ensure the stability of the movement of the ejection block 22.

[0056] As attached Figure 7 As shown, the second bevel bending module includes a first bevel block 16 and a second bevel block 28. The first bevel block 16 is arranged on the upper mold 10, and the second bevel block 28 is arranged on the lower mold 20. An inclined surface is provided on the side where the first bevel block 16 and the second bevel block 28 are close to each other, and the V-shaped bend 351 is bent into a second bevel 361 through the inclined surface to form a fifth semi-finished product 36.

[0057] In this embodiment, the second bevel bending module is connected to the ejection assembly, and the fifth semi-finished product 36 is ejected after bending to prevent the fifth semi-finished product 36 from being stuck with the second bevel bending module and affecting subsequent processes.

[0058] As attached Figure 8 As shown, the present embodiment also includes an arc-shaped bending module, through which an arc-shaped piece 371 is processed. The arc-shaped bending module includes an arc-shaped bending block 17 arranged on the upper mold 10. The arc-shaped bending block 17 includes an arc-shaped abutment surface 171 and an avoidance member 172. The avoidance member 172 is used to avoid the adjacent fifth semi-finished product 36. The arc-shaped abutment surface 171 processes the fifth semi-finished product 36 into an arc-shaped piece 371, thereby completing the processing of the workpiece 30.

[0059] As attached Fig. 9 As shown, the processing method of the special-shaped part of this embodiment includes the following steps:

[0060] Feeding: conveying the material strip 31 between the upper mold 10 and the lower mold 20 along a direction perpendicular to the mold closing direction;

[0061] Obtuse angle bending: the obtuse angle bending module processes a first semi-finished product 32 having a first obtuse angle 321 and a second obtuse angle 322;

[0062] First bevel bending: The first bevel bending module processes the first obtuse angle 321 into a first bevel angle 332 of the second semi-finished product 33;

[0063] Wedge bending: The wedge bending module processes the second obtuse angle 332 into a wedge angle 331 of the second semi-finished product 33;

[0064] U-shaped bending: The U-shaped bending module processes the wedge angle 331 into a U-shaped bend 341 to form a third semi-finished product 34;

[0065] V-shaped bending: The V-shaped bending module processes one side of the U-shaped bending 341 into a V-shaped bending 351 to form a fourth semi-finished product 35;

[0066] Second bevel bending: The second bevel bending module processes one side of the V-shaped bend 351 into a second bevel 361;

[0067] Processing completed: the arc bending module processes the fifth semi-finished product 36 into an arc-shaped part 371, completing the processing of the workpiece 30;

[0068] Unloading: taking out the workpiece 30 from between the upper die 10 and the lower die 20 .

[0069] In one example of this embodiment, the first bevel bending and wedge bending steps are performed simultaneously to improve processing efficiency.

[0070] In another example of this embodiment, the first bevel bending step is performed first, and then the wedge bending step is performed;

[0071] In another example of this embodiment, the wedge bending step is performed first, and then the first bevel bending step is performed.

[0072] In the above processing steps, the ejection component is set according to actual needs to eject the semi-finished workpiece. In this embodiment, there is no restriction on the ejection step of the ejection component.

[0073] The above implementation modes are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A continuous bending forming die for special-shaped parts, characterized in that: It comprises an upper die and a lower die, the upper die makes a reciprocating motion close to and / or away from the lower die, a material strip for forming a workpiece is arranged between the upper die and the lower die, the material strip makes a motion perpendicular to the closing direction of the upper die and the lower die, an obtuse-angle bending module, a first bevel-angle bending module, a wedge-shaped bending module, a U-shaped bending module, a V-shaped bending module, a second bevel-angle bending module, an arc-shaped bending module and a top-material assembly are arranged between the upper die and the lower die, the wedge-shaped bending module and the U-shaped bending module are connected to the top-material assembly, the top-material assembly comprises a top-material block and an elastic member, and the top-material block is connected to the lower die through the elastic member; The wedge-shaped bending die set comprises a wedge-shaped bending block and a first bending angle block, wherein the first bending angle block is arranged on the upper die, and the wedge-shaped bending block is arranged on the lower die, wherein the wedge-shaped bending block comprises a rounded protrusion, and the first bending angle block is provided with a recess matched with the rounded protrusion, and the rounded protrusion and the recess are matched to form a wedge-shaped angle; The U-shaped bending module includes a second bending angle block, a wedge block and a forming block. The second bending angle block is arranged on the upper mold, and the wedge block and the forming block are arranged on the lower mold. The wedge block includes a rounded corner abutment block, and the second bending angle block includes a bending angle that cooperates with the rounded corner abutment block. The U-shaped bending module processes a U-shaped bend.

2. The continuous bending forming die for special-shaped parts according to claim 1, characterized in that: The obtuse-angle bending module includes two groups of obtuse-angle bending blocks and bottom support blocks that are arranged in a coordinated manner. The obtuse-angle bending block is arranged on the upper mold, and the bottom support block is arranged on the lower mold. A contact bevel is provided on the side where the obtuse-angle bending block and the bottom support block are close to each other, and the contact bevel processes the material strip into a first obtuse angle and a second obtuse angle.

3. The continuous bending forming die for special-shaped parts according to claim 1, characterized in that: The first bevel bending module includes a first bevel block and a second bevel block, the first bevel block is arranged on the upper die, and the second bevel block is arranged on the lower die. A slope is provided on the side where the first bevel block and the second bevel block are close to each other, and the slope is processed to form a first bevel.

4. The continuous bending forming die for special-shaped parts according to claim 1, characterized in that: The lifting block includes a slot and a guide hole, and the lifting block is arranged on the lower mold, the slot passes through the side of the lifting block close to the upper mold, the guide hole is arranged on the side of the lifting block away from the upper mold and is connected with the slot, and guide columns are movably provided in the slot and the guide hole, the elastic member is sleeved on the guide column, one end of the elastic member is connected to the lower mold, and the other end is arranged in the guide hole.

5. The continuous bending forming die for special-shaped parts according to claim 1, characterized in that: The V-shaped bending module includes a top buckle block arranged on the upper die and a supporting block arranged on the lower die, the top buckle block includes an inverted V groove, the supporting block is provided with a protrusion that cooperates with the inverted V groove, and the top buckle block and the supporting block cooperate to process a V-shaped bend.

6. The continuous bending forming die for special-shaped parts according to claim 1, characterized in that: The second bevel bending module includes a first bevel block arranged on the upper die and a second bevel block arranged on the lower die. The first bevel block and the second bevel block are close to each other and a bevel surface is provided on one side. The first bevel block and the second bevel block cooperate to process a second bevel.

7. The continuous bending forming die for special-shaped parts according to claim 1, characterized in that: The arc-shaped bending module group includes an arc-shaped bending block arranged on the upper die, the arc-shaped bending block includes an arc-shaped abutting surface and an avoidance member, and the arc-shaped bending block is processed into an arc-shaped member.

8. A method for processing a special-shaped part, comprising the continuous bending forming die for the special-shaped part according to any one of claims 1 to 7, characterized in that: The steps include: Feeding: convey the material strip between the upper mold and the lower mold in a direction perpendicular to the mold closing direction; Obtuse angle bending: The obtuse angle bending module processes a first semi-finished product having a first obtuse angle and a second obtuse angle; First bevel bending: The first bevel bending module processes the first obtuse angle into the first bevel angle of the second semi-finished product; Wedge bending: The wedge bending module processes the second obtuse angle into the wedge angle of the second semi-finished product; U-bending: The U-bending module processes the wedge angle into a U-bend to form the third semi-finished product; V-bending: The V-bending module processes one side of the U-bending into a V-bending to form the fourth semi-finished product; Second bevel bending: The second bevel bending module processes one side of the V-shaped bend into a second bevel; Processing completed: the arc bending module processes the fifth semi-finished product into an arc-shaped part, completing the processing of the workpiece; Unloading: Remove the workpiece from between the upper and lower dies.

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