Flanging die

Abstract

The utility model provides a flanging die. The flanging die comprises a sliding assembly, a flanging insert and a driving structure. The flanging insert is provided with a first limiting surface and a second limiting surface which have an included angle relation, is arranged on the sliding assembly and can abut against a workpiece pressed in in the first direction, so that the first limiting surface and the second limiting surface are matched to form forward flanging of the workpiece; the driving structure can drive the sliding assembly to move in the second direction and drive the flanging insert, so that the second limiting face forms side flanging on the workpiece. According to the arrangement, in the whole flanging process, front flanging and side flanging can be completed only through one flanging die, the workpiece does not need to move at multiple stations, the flanging process steps are few, and the problems that in the prior art, the flanging process of the workpiece needs multiple dies, and the flanging process steps are many are solved.

Description

Technical Field

[0001] The present application relates to the field of mold technology, and in particular to a flanging mold. Background Art

[0002] Stamping is a forming process that uses a press and a die to apply external force to a sheet material to cause it to undergo plastic deformation, thereby obtaining a workpiece of the desired shape and size. In car body manufacturing, stamping is often used to perform flanging on workpieces.

[0003] At present, the flanging processing of the workpiece includes forward flanging and side flanging. The forward flanging is flanging in the direction of the die stamping, and the side flanging is flanging the workpiece in a direction other than the stamping direction. In the prior art, the workpiece usually needs to undergo two processes of forward flanging and side flanging, which results in the need for multiple molds in the flanging process, and the entire flanging process requires many steps, which leads to high difficulty in the arrangement design of various action mechanisms in the flanging process. Utility Model Content

[0004] In view of this, the present application provides a flanging die to solve the problem in the prior art that the flanging process of a workpiece requires multiple dies and the flanging process has many steps.

[0005] In order to achieve the above objectives, this application provides the following technical solutions:

[0006] A flanging die, comprising:

[0007] Sliding assembly;

[0008] A flanging insert is provided with a first limiting surface and a second limiting surface having an angle relationship, and is arranged on the sliding assembly, wherein the flanging insert can resist the workpiece pressed in along a first direction, so that the first limiting surface and the second limiting surface cooperate to form a positive flanging of the workpiece;

[0009] The driving structure can drive the sliding assembly to move along the second direction and drive the flanging insert so that the second limiting surface forms a side flanging for the workpiece.

[0010] Optionally, a fixed seat is further included, the sliding assembly is slidably connected to the fixed seat, and a reset structure for driving the sliding assembly to reset is provided between the fixed seat and the sliding assembly.

[0011] Optionally, the sliding assembly includes:

[0012] A sliding seat connected to the flanging insert;

[0013] A flanging drive block connected to the sliding seat and capable of contacting with the drive structure and being driven by the drive structure;

[0014] Wherein, in the second direction, the sliding seat is at least partially surrounded by the front side of the fixed seat, and the flanging drive block is at least partially located at the rear side of the fixed seat; the reset structure is connected between the sliding seat and the fixed seat.

[0015] Optionally, the driving structure cooperates with the flanging driving block in an oblique wedge manner, so that the movement of the driving structure along the first direction can push the flanging driving block to move along the second direction.

[0016] Optionally, a receiving groove is provided on a surface of the fixed seat facing the sliding seat, and the reset structure is located in the receiving groove.

[0017] Optionally, the fixed seat is provided with a plurality of avoidance grooves, the flange drive blocks are provided with a plurality of flange drive blocks respectively passing through the avoidance grooves and connected to the sliding seat, and all the flange drive blocks can contact the drive structure and be driven by the drive structure.

[0018] Optionally, the driving structure is provided with a through slot for avoiding the fixing seat in the first direction.

[0019] Optionally, the fixing seat is slidably matched with the through slot.

[0020] Optionally, the flange insert is detachably connected to the sliding assembly.

[0021] Optionally, the reset structure includes a return cylinder.

[0022] The flanging die provided in the present application includes a sliding assembly, a flanging insert and a driving structure; the flanging insert is provided with a first limiting surface and a second limiting surface having an angle relationship, and is arranged on the sliding assembly, the flanging insert can resist the workpiece pressed in along the first direction, so that the first limiting surface and the second limiting surface cooperate and form a positive flanging of the workpiece; the driving structure can drive the sliding assembly to move along the second direction and drive the flanging insert, so that the second limiting surface forms a side flanging of the workpiece. With such an arrangement, first, the sliding assembly is maintained at the set initial position, and the flat workpiece moves along the first direction under the action of the pressure source and is gradually pressed into the flanging insert, and is bent under the cooperative shaping action of the first limit surface and the second limit surface to complete the positive flanging. At this time, the workpiece has a bending angle. Since the positive flanging usually causes the forming accuracy of the workpiece to fail to meet the standard due to the rebound effect, the workpiece is re-processed with the aid of side flanging. At this time, the workpiece can still be maintained in the original position, and the driving structure is actuated and pushes the sliding assembly to move along the second direction, so that the second limit surface of the flanging insert reshapes the workpiece, deepens the bending angle of the workpiece, and completes the side flanging. In the entire flanging process, the positive flanging and the side flanging can be completed by only one flanging mold, and the workpiece does not need to move at multiple stations, and the flanging process has fewer steps, which solves the problem that the flanging process of the workpiece in the prior art requires multiple molds and the flanging process has many steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] Figure 1 An axonometric view of the flanging die provided in an embodiment of the present application;

[0025] Figure 2 An axonometric view of the sliding assembly and the fixing seat provided in the embodiment of the present application;

[0026] Figure 3 A bottom view of the driving structure provided in an embodiment of the present application;

[0027] Figure 4 A top view of the sliding assembly and the fixing seat provided in an embodiment of the present application;

[0028] Figure 5 A schematic diagram of a positive flange provided in an embodiment of the present application;

[0029] Figure 6 A schematic diagram of the side flange provided in an embodiment of the present application.

[0030] exist Figure 1-Figure 6 middle:

[0031] 1. Sliding assembly; 2. Flanging insert; 3. Driving structure; 4. Fixed seat; 5. Workpiece;

[0032] 11. Sliding seat; 12. Flanging drive block; 13. Sliding block;

[0033] 21. First limiting surface; 22. Second limiting surface;

[0034] 31. Through slot;

[0035] 41. Accommodation groove; 42. Avoidance groove. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0037] like Figure 1-Figure 4 As shown, the embodiment of the present application provides a flanging die, including a sliding assembly 1, a flanging insert 2 and a driving structure 3; the flanging insert 2 is provided with a first limiting surface 21 and a second limiting surface 22 having an angle relationship, and is arranged on the sliding assembly 1, and the flanging insert 2 can resist the workpiece 5 pressed in along the first direction, so that the first limiting surface 21 and the second limiting surface 22 cooperate and form a positive flanging of the workpiece 5; the driving structure 3 can drive the sliding assembly 1 to move along the second direction and drive the flanging insert 2, so that the second limiting surface 22 forms a side flanging of the workpiece 5. Among them, the first limiting surface 21 is the bottom surface, the second limiting surface 22 is the side surface, and the angle between the first limiting surface 21 and the second limiting surface 22 is preset according to the required workpiece angle. As shown in the figure, the first direction can be a vertical direction, and the second direction is a horizontal direction.

[0038] In this way, first, the sliding assembly 1 is maintained at the set initial position, and the flat workpiece 5 moves along the first direction under the action of the pressure source, and is gradually pressed into the flanging insert 2, and is bent under the cooperation and shaping action of the first limiting surface 21 and the second limiting surface 22, and the positive flanging is completed. At this time, the workpiece 5 has a bending angle. Since the positive flanging usually causes the forming accuracy of the workpiece 5 to be substandard due to the rebound effect, the workpiece 5 is processed again with the side flanging. At this time, the workpiece 5 can still be maintained in the original position, and the driving structure 3 acts and pushes the sliding assembly 1 to move along the second direction, so that the second limiting surface 22 of the flanging insert 2 reshapes the workpiece 5, deepens the bending angle of the workpiece 5, and completes the side flanging; in the entire flanging process, the positive flanging and the side flanging can be completed by only one flanging mold, and the workpiece 5 does not need to move at multiple stations, and the flanging process has fewer steps, which solves the problem that the flanging process of the workpiece in the prior art requires multiple molds and the flanging process has many steps. In addition, it is also conducive to reducing the development cost of the mold and the production cost of the workpiece.

[0039] It should be noted that in the present application, the flange widths of the front flange and the side flange are both very small, measured in millimeters.

[0040] In a specific embodiment, the flanging mold also includes a fixed seat 4, which is fixedly connected to a frame in the production line to achieve position fixation, and the sliding assembly 1 is slidably connected to the fixed seat 4. The two can produce relative sliding in the second direction, and a reset structure is provided between the fixed seat 4 and the sliding assembly 1 to drive the sliding assembly 1 to reset, that is, the reset structure drives the sliding assembly 1 to move in the opposite direction to return to the initial position.

[0041] With such arrangement, after the flanging process is completed, the position of the sliding assembly 1 in the second direction changes. At this time, the sliding assembly 1 can be driven back to the initial position by the action of the reset structure to facilitate the next flanging process.

[0042] Specifically, in the positive flanging process, the flat workpiece 5 is placed on the lower pressing plate. Under the downward pressure of the pressure source, the flat workpiece 5 is pressed down to the location of the flanging die. At the same time, the flanging position of the flat workpiece 5 is extended beyond the lower pressing plate, so it is limited and bent at the flanging insert 2 to complete the positive flanging. Please refer to Figure 5 At this time, due to the push of the workpiece 5, the flanging insert 2 and the sliding assembly 1 are forced to slide slightly in the direction away from the workpiece 5, and the reset structure is compressed and stored; in the side flanging process, the driving structure 3 pushes the sliding assembly 1 to slide in the direction close to the workpiece 5, thereby driving the flanging insert 2 to further shape the workpiece 5 to complete the side flanging. Please refer to Figure 6 At this time, the reset structure is still in a state of pressure accumulation. When the workpiece 5 is evacuated, the reset structure releases the pressure and pushes the sliding assembly 1 to reset.

[0043] In another specific embodiment, the sliding assembly 1 includes a sliding seat 11 and a flanging drive block 12; the flanging insert 2 is connected to the sliding seat 11; the flanging drive block 12 is fixedly connected to the sliding seat 11, and can contact the driving structure 3 and be driven by the driving structure 3; wherein, in the second direction, the sliding seat 11 is at least partially surrounded by the front side of the fixed seat 4, and the flanging drive block 12 is at least partially located at the rear side of the fixed seat 4; the reset structure is connected between the sliding seat 11 and the fixed seat 4. It should be noted that a slider 13 is provided at a local position of the sliding seat 11, and a sliding connection relationship is formed with the frame in the production line through the slider rail structure.

[0044] In this arrangement, the driving structure 3 drives the flanging driving block 12 at the rear side of the sliding assembly 1, and the sliding seat 11 is driven by the flanging driving block 12 to move in front of the fixed seat 4 and away from the fixed seat 4. In this way, the sliding assembly 1 and the fixed seat 4 are in a nested shape, so that the overall structure of the flanging mold is compact and the sliding is stable.

[0045] In another specific embodiment, the driving structure 3 and the flanging driving block 12 are both provided with inclined surfaces, and the two are in surface contact and wedge-matched, so that the driving structure 3 moving in the first direction can push the flanging driving block 12 to move in the second direction, thereby allowing the sliding seat 11 to drive the flanging insert 2 to move in the second direction.

[0046] With such arrangement, the flanging mold makes full use of the space in the horizontal and vertical directions, which is conducive to the flanging mold being adapted to a production environment with a small space. Moreover, the driving structure 3 and the flanging driving block 12 have a stable wedge fit. By reasonably setting the angle of the wedge surface, the distance of the driving structure 3 moving downward in the first direction can be reduced when converted to the horizontal movement distance of the sliding seat 11 in the second direction, which is conducive to the small-distance sliding of the sliding seat 11 and is adapted to the production requirements of micro-flanging.

[0047] Of course, if the equipment space allows, it is also feasible for the driving structure 3 to move along the second direction to directly push the flanging driving block 12 to move.

[0048] In a preferred embodiment, a receiving groove 41 is provided on a surface of the fixed seat 4 facing the sliding seat 11, and the reset structure is located in the receiving groove 41. In this way, the fixed seat 4 and the sliding assembly 1 are compactly structured, and an installation space is provided for the reset structure.

[0049] Specifically, the reset structure can be a return cylinder, such as a nitrogen return cylinder or a hydraulic cylinder. In some possible cases, it is also feasible that the reset structure is set as a spring.

[0050] In a preferred embodiment, the fixed seat 4 is provided with a plurality of avoidance grooves 42, the avoidance grooves 42 are connected along the second direction, a plurality of flanging driving blocks 12 are provided and respectively pass through the avoidance grooves 42 and are connected to the sliding seat 11, and all flanging driving blocks 12 can contact the driving structure 3 and be driven by the driving structure 3. The plurality of flanging driving blocks 12 are arranged along the length direction of the sliding seat 11.

[0051] With such arrangement, multiple contact surfaces are formed between the driving structure 3 and the sliding assembly 1 , so that the force transmission is more balanced, the sliding fit is more stable, and the position accuracy of the sliding seat 11 is also higher.

[0052] In another preferred embodiment, the driving structure 3 is a block structure, and the driving structure 3 is provided with a through slot 31 for avoiding the fixing seat 4 in the first direction, that is, the through slot 31 is through in the first direction.

[0053] Such an arrangement is conducive to shortening the space occupied by the flanging mold in the second direction and enhancing the structural compactness of the flanging mold.

[0054] Furthermore, it is preferred that the fixed seat 4 and the through slot 31 also have an additional sliding fit relationship, that is, the fixed seat 4 is adapted to the through slot 31 in the width direction thereof. In this way, the driving structure 3 has a sliding fit relationship with the sliding assembly 1 and the fixed seat 4, and the sliding of each structure is smoother and more controllable.

[0055] In addition, it is also feasible to form an avoidance slope on the fixing seat 4 to avoid the driving structure 3 .

[0056] In another preferred embodiment, the flanging insert 2 is detachably connected to the sliding assembly 1, which may be, but is not limited to, snap-fit, magnetically attracted, bolted, etc. In this way, the flanging die is suitable for flanging workpieces of different flanging sizes.

[0057] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0058] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.

[0059] It should also be noted that in the apparatus, device and method of the present application, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0060] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0061] It should be understood that the qualifiers "first", "second", "third", "fourth", "fifth" and "sixth" used in the description of the embodiments of the present application are only used to more clearly explain the technical solutions and cannot be used to limit the scope of protection of the present application.

[0062] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A flanging die, characterized in that: include: Sliding assembly (1); A flanging insert (2) is provided with a first limiting surface (21) and a second limiting surface (22) having an angle relationship, and is arranged on the sliding assembly (1); the flanging insert (2) is capable of resisting against a workpiece (5) pressed in along a first direction, so that the first limiting surface (21) and the second limiting surface (22) cooperate to form a positive flanging of the workpiece (5); The driving structure (3) is capable of driving the sliding assembly (1) to move along the second direction and drive the flanging insert (2) so that the second limiting surface (22) forms a side flanging for the workpiece (5).

2. The flanging die according to claim 1, characterized in that: It also comprises a fixed seat (4), the sliding assembly (1) is slidably connected to the fixed seat (4), and a reset structure for driving the sliding assembly (1) to reset is provided between the fixed seat (4) and the sliding assembly (1).

3. The flanging die according to claim 2, characterized in that: The sliding assembly (1) comprises: A sliding seat (11) connected to the flange insert (2); A flanging drive block (12) connected to the sliding seat (11) and capable of contacting the drive structure (3) and being driven by the drive structure (3); Wherein, in the second direction, the sliding seat (11) at least partially surrounds the front side of the fixed seat (4), and the flanging drive block (12) is at least partially located on the rear side of the fixed seat (4); and the reset structure is connected between the sliding seat (11) and the fixed seat (4).

4. The flanging die according to claim 3, characterized in that: The driving structure (3) and the flanging driving block (12) are wedge-matched so that the driving structure (3) can move along the first direction to push the flanging driving block (12) to move along the second direction.

5. The flanging die according to claim 3, characterized in that: A receiving groove (41) is provided on a surface of the fixed seat (4) facing the sliding seat (11), and the reset structure is located in the receiving groove (41).

6. The flanging die according to claim 3, characterized in that: The fixed seat (4) is provided with a plurality of avoidance grooves (42), the flange drive blocks (12) are provided with a plurality of flange drive blocks (12) which respectively pass through the avoidance grooves (42) and are connected to the sliding seat (11), and all the flange drive blocks (12) are capable of contacting the drive structure (3) and being driven by the drive structure (3).

7. The flanging die according to claim 6, characterized in that: The driving structure (3) is provided with a through slot (31) for avoiding the fixing seat (4) in the first direction.

8. The flanging die according to claim 7, characterized in that: The fixing seat (4) is slidably matched with the through slot (31).

9. The flanging die according to claim 1, characterized in that: The flanged insert (2) is detachably connected to the sliding assembly (1).

10. The flanging die according to claim 2, characterized in that: The reset structure includes a return cylinder.

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