Flanging die
By employing positioning pins and elastic components in the flanging die, the problem of workpiece displacement during the flanging process was solved, thereby improving the accuracy of the flanging position and the product qualification rate.
Patent Information
- Application Number
- CN202423112718.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-16
AI Technical Summary
During the processing of existing flanging dies, the workpiece is prone to displacement, resulting in inaccurate flanging position and a high product defect rate.
Design a flanging die, which adopts a combination of a first module and a second module. The bottom of the first module is provided with at least two positioning posts. The positioning posts abut against and press against the workpiece, and the elastic component provides elastic stress to ensure that the workpiece is not easily displaced during the flanging process.
It effectively prevents workpieces from shifting during the flanging process, improves the accuracy of the flanging position, and reduces the product defect rate.
Smart Images
Figure CN223629358U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a mould technical field especially relates to a flanging die. BACKGROUND
[0002] The flanging die is a special die for flanging the edge of a workpiece made of metal or other materials, and the edge of the workpiece is formed along a certain curve or straight line shape by the die to form a vertical edge. During the flanging process, the upper die exerts pressure on the edge of the workpiece to cause the material to flow and deform, so that the edge of the workpiece is formed with a flange.
[0003] When the existing flanging die is used for flanging, the workpiece is usually placed on the lower die, and then the flanging die head is manually aligned and pressed down. Since the workpiece is not locked, it is easy to shift when the flanging die head is pressed down, resulting in inaccurate flanging position and failure to achieve the desired flanging shape and size requirements, resulting in high product rejection rate. UTILITY MODEL CONTENT
[0004] In order to overcome at least one of the defects of the prior art described above, the utility model provides a flanging clamp, which is provided with at least two positioning columns on the first die set. The at least two positioning columns abut against the workpiece, so that the workpiece is pressed tightly during the flanging process and is not easy to shift.
[0005] The utility model adopts the technical scheme that:
[0006] A flanging die, comprising:
[0007] A die body, the die body comprising a first die set and a second die set, the first die set being movable towards or away from the second die set, the first die set being provided at the bottom with a flanging die head for pressing the workpiece when the first die set moves towards the second die set, so that a flange is formed on the workpiece; the first die set being provided at the bottom with at least two positioning columns, the at least two positioning columns being uniformly distributed along the circumference of the first die set; the positioning columns being used to abut against the workpiece when the first die set and the second die set move towards each other;
[0008] A driving assembly for driving the first die set to move towards or away from the second die set.
[0009] Further, the positioning column is provided with an elastic component, which is used to provide an elastic stress when the first die set moves towards the second die set, so as to drive the positioning column to press the workpiece.
[0010] Further, the positioning column is movably arranged in the first die set, the elastic component is a spring, and the spring is arranged at the bottom of the first die set and sleeved on the outer periphery of the positioning column.
[0011] Further, the bottom of the positioning column is provided with a compression ring, which extends along the circumference of the positioning column.
[0012] Further, the first module has a through hole, and the positioning column is movably arranged in the through hole.
[0013] Further, the flanging die has a positioning section and a flanging section, the flanging section extends along the circumference of the positioning section and protrudes from the circumference of the positioning section, the positioning section is arranged in the workpiece when the first module moves close to the second module, and the flanging section is used to press the end wall of the workpiece after the positioning section is arranged in the workpiece, and the positioning column is arranged at intervals with the flanging die.
[0014] Further, the positioning section and the flanging section are connected through an arc surface.
[0015] Further, the top end of the second module is provided with a positioning die, and the positioning die is arranged correspondingly with the flanging die.
[0016] Further, the outer circumference of the positioning die has a guide arc surface, which extends along the circumference of the positioning die.
[0017] Further, the positioning column is provided with at least four positioning columns, and the at least four positioning columns are uniformly and spacedly arranged along the outer circumference of the flanging die.
[0018] In summary, the flanging die has the following technical effects:
[0019] In specific use, when the first module moves close to the second module, the at least two positioning columns can abut against the workpiece to compress the workpiece, so that the workpiece can be locked during the flanging process and is not easy to move, thereby reducing the probability of inaccurate flanging position caused by the displacement of the workpiece during the flanging process, and indirectly improving the qualified rate of the workpiece flanging. BRIEF DESCRIPTION OF DRAWINGS
[0020] Fig. 1 It is a structural schematic diagram of the utility model;
[0021] Fig. 2 It is another perspective view of the structure of the utility model;
[0022] Fig. 3 It is a sectional view of the structure of the utility model.
[0023] Among them, the meaning of the reference signs is as follows:
[0024] 10, first module; 11, positioning column; 12, elastic component; 13, flanging die; 131, positioning section; 132, flanging section; 20, second module; 21, positioning die; 211, guide camber; 30, workpiece. DETAILED DESCRIPTION
[0025] In order to better understand and implement, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application.
[0026] In the description of the present application, it should be noted that the directions or position relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application in that the devices or elements indicated thereby must have a specific direction, be constructed in a specific direction and be operated.
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein only for the purpose of describing specific embodiments of the present application, and is not intended to limit the present application.
[0028] Referring to Figs. 1 to 3 The present application discloses a kind of flanging dies, including die main body and drive assembly, die main body includes first module 10 and second module 20, drive assembly is used to drive first module 10 and second module 20 mutually close or far away, flanging die 13 is provided at the bottom of first module 10, flanging die 13 is pressed on workpiece 30 when first module 10 and second module 20 mutually close, to make workpiece 30 on forming has flanging, and at least two positioning columns 11 are provided at the bottom of first module 10, at least two positioning columns 11 are evenly spaced along the circumference of first module 10, positioning column 11 is abutted with workpiece 30 when first module 10 and second module 20 mutually close.
[0029] On the basis of the above structure, at least two positioning columns 11 and the outer side of flanging die 13 can be spaced apart and evenly distributed along the circumference of flanging die 13 during assembly, so that flanging die 13 is driven by first module 10 to approach second downward movement and approach workpiece 30, positioning column 11 will also approach the edge portion of workpiece 30 synchronously, to abut with the edge of workpiece 30, to compress workpiece 30, avoid workpiece 30 displacement during flanging die 13 flanging on the inner ring of workpiece 30, and the phenomenon of inaccurate flanging position occurs.
[0030] Specifically, when the mold is in the initial state, the first mold set 10 is located above the second mold set 20 and forms a gap between the first mold set 10 and the second mold set 20. When the workpiece 30 needs to be processed, the workpiece 30 is placed on the second mold set 20, and the part of the workpiece 30 that needs to be flanged (i.e., the inner circle of the workpiece 30) is flanged by the flanging die head 13. After the workpiece 30 is aligned, the driving assembly drives the first mold set 10 to move downward along the axial direction of the first mold set 10 to approach the workpiece 30 until the positioning column 11 abuts against the workpiece 30, so that the workpiece 30 is preliminarily locked to prevent the workpiece 30 from being displaced when the flanging die head 13 approaches. Then, the first mold set 10 continues to press down, and the flanging die head 13 gradually approaches the edge part of the inner circle of the workpiece 30. As the pressure gradually increases, the positioning column 11 firmly fixes the edge of the workpiece 30 on the mold workbench, so as to prevent the workpiece 30 from being displaced during the flanging process. When the flanging die head 13 contacts the edge of the workpiece 30, the pressure is applied. During the application of the pressure, the bending of the material of the workpiece 30 is guided according to a certain speed and pressure curve, so that the edge of the workpiece 30 gradually forms a flanged shape.
[0031] When the flanging die head 13 is pressed to a set depth, and the flanging of the workpiece 30 meets the design requirements, the driving assembly drives the first mold set 10 to move away from the second mold set 20 until the workpiece 30 can be taken out, and the entire flanging operation is completed. Then, the next cycle of operation is started.
[0032] During the entire flanging process, since at least two positioning columns 11 are always pressed against the workpiece 30, the probability of displacement of the workpiece 30 during the flanging process is reduced, so that the problem of inaccurate flanging position caused by displacement of the workpiece 30 during the flanging process is less likely to occur, and the pass rate of the workpiece flanging is indirectly improved.
[0033] It should be noted that the fixing column in the embodiment can be connected to the first mold set 10 by an elastic component 12, for example, a spring sleeve or an elastic column or an elastic pad. The elastic component 12 is arranged on the positioning column 11, one end of the elastic component 12 is in contact with the boss at the top end of the positioning column 11, and the other end of the elastic component 12 is in contact with the bottom of the mounting hole of the first mold set 10. In this way, when the flanging die head 13 is pressed down, the positioning column 11 first contacts the workpiece 30 and starts to be pressed. This pressure is transmitted to the spring, so that the spring is compressed and deformed. Thus, sufficient pressure can be provided to fix the workpiece 30 during the pressing process of the positioning column 11, so that the workpiece 30 is always pressed tightly, and the rigidity of the positioning column 11 does not easily affect the deformation of the workpiece during flanging.
[0034] Of course, in addition to the elastic component 12, a guide sleeve can also be provided to connect the positioning column 11 to the first mold set 10. A gap is reserved between the guide sleeve and the positioning column 11 to allow the positioning column 11 to have a certain floating range in the vertical direction. In this way, when the flanging die 13 is pressed down, the positioning column 11 first contacts the workpiece 30. As the flanging die 13 continues to be pressed down, the positioning column 11 floats upward in the guide sleeve to generate a certain compression force, which can also achieve the above-mentioned effect.
[0035] In addition, the positioning column 11 can be provided in two, three, four or more, which can be set according to the size of the first mold set 10. The workpiece 30 can be locked more tightly by the plurality of positioning columns 11 to prevent displacement.
[0036] As a preferred embodiment, the positioning column 11 in the embodiment is provided in at least four. The at least four positioning columns 11 are evenly and spacedly distributed along the outer periphery of the flanging die 13. In this way, when the mold is pressed down, the workpiece 30 is limited from different directions by the at least four evenly and spacedly distributed positioning columns 11 in the circumferential direction, so that the workpiece 30 is almost impossible to produce translation or rotation in the horizontal plane, thereby improving the position accuracy of the workpiece 30 in the flanging process. In contrast, using a smaller number of positioning columns 11 (such as two or three) may not effectively limit the movement of the workpiece 30 in some directions, resulting in unstable positioning.
[0037] Further, the positioning column 11 in the embodiment is provided with an elastic component 12. The elastic component 12 provides an elastic stress when the first mold set 10 moves close to the second mold set 20 to drive the positioning column 11 to press the workpiece 30.
[0038] Specifically, when the flanging die 13 is pressed down, the workpiece 30 will be deformed (i.e., flanging). At this time, due to the presence of the elastic component 12, the positioning column 11 first contacts the workpiece 30 and begins to be pressed when the flanging die 13 is pressed down. This pressure is transmitted to the spring to cause the spring to compress and deform, so that the positioning column 11 floats upward by a certain distance to adjust the position of the positioning column 11 in real time according to the deformation degree, while maintaining a certain pressing force to prevent the workpiece 30 from shifting.
[0039] In addition, the elastic component 12 can also play a role for workpieces 30 of different sizes. If the thickness or shape size of the workpiece 30 has a certain tolerance range, the elastic component 12 can adjust the position of the positioning column 11 through its elastic deformation to ensure that the positioning column 11 can always effectively press and position the workpiece 30.
[0040] As preferred, the elastic component 12 in the embodiment is a spring, which is arranged at the bottom of the first mold set 10 and sleeved on the outer periphery of the positioning column 11. Since the positioning column 11 is movably arranged in the first mold set 10, the positioning column 11 can move freely within a certain range, so that the positioning column 11 can be finely adjusted according to the actual position of the workpiece 30 in the initial stage of the contact between the mold and the workpiece 30, thereby ensuring more accurate positioning.
[0041] In addition, the spring is sleeved on the positioning column 11, and the spring can be compressed during the pressing process of the flanging die 13, thereby generating an elastic force, which can buffer the contact force between the positioning column 11 and the workpiece 30. For example, when the flanging die 13 is pressed quickly, the spring can absorb part of the impact force, thereby avoiding damage to the positioning column 11 due to instantaneous excessive force.
[0042] More specifically, the bottom of the positioning column 11 is provided with a compression ring, which is arranged along the circumferential direction of the positioning column 11 and is arranged at the end of the positioning column 11 for contacting the workpiece 30, so that the contact area of the end of the positioning column 11 for abutting against the workpiece 30 is increased. Since the contact area is increased, the positioning column 11 can better resist the movement of the workpiece 30 in the horizontal direction when the workpiece 30 is pressed, thereby effectively fixing the workpiece 30 at the positioning position and ensuring that the flanging operation can be accurately performed at the predetermined position, thereby improving the positioning stability of the workpiece 30 during the entire flanging process.
[0043] It should be noted that the compression ring can be a bolt or a snap ring, which is sleeved on the outer periphery of the positioning column 11 by thread connection or clamping connection.
[0044] As preferred, the first mold set 10 has a through hole, and the positioning column 11 is movably arranged in the through hole, so that the positioning column 11 can move up and down along the axial direction of the first mold set 10.
[0045] In addition, the end of the positioning column 11 extending out of the top of the first mold set 10 can also be provided with a limiting member, such as a nut, a bolt or a snap ring, to limit the top of the positioning column 11, so that the positioning column 11 can move up and down while not being separated from the first mold set 10.
[0046] Further, the flanging die 13 has a positioning section 131 and a flanging section 132, the flanging section 132 is arranged along the circumferential direction of the positioning section 131 and protrudes from the circumferential edge of the positioning section 131, the positioning section 131 is arranged in the workpiece 30 when the first mold set 10 moves close to the second mold set 20, and the flanging section 132 presses the end wall of the workpiece 30 after the positioning section 131 is arranged in the workpiece 30. The at least two positioning columns 11 are arranged at intervals with the flanging die 13.
[0047] Specifically, when the flanging operation is performed, the part of the workpiece 30 to be flanged is aligned with the positioning section 131, and then the flanging die 13 starts to move downward to approach the workpiece 30 with the first die set 10 until the positioning section 131 extends into the workpiece 30, at which time the positioning section 131 abuts against the inner wall of the workpiece 30 and plays a role of positioning the workpiece 30 to avoid displacement of the workpiece 30 during the flanging process, and then the flanging section 132 continuously presses downward to contact the edge of the workpiece 30, since the flanging section 132 protrudes from the periphery of the positioning section 131, it can continuously exert pressure on the edge of the workpiece 30 to make the material bend outward, so that the edge of the workpiece 30 is shaped with a flange.
[0048] More specifically, the positioning section 131 and the flanging section 132 are connected through the arc surface, so that when the flanging die 13 exerts pressure on the workpiece 30, the pressure can be smoothly transferred to the workpiece 30 through the arc surface, avoiding stress concentration due to sudden change of force, thereby reducing the possibility of cracks or damage of the workpiece 30.
[0049] Further, the top end of the second die set 20 is provided with a positioning die 21, which is correspondingly arranged with the flanging die 13.
[0050] Specifically, when the flanging operation is performed, the workpiece 30 can be sleeved on the outer periphery of the positioning die 21, since the positioning die 21 is correspondingly arranged with the flanging die 13, after the workpiece 30 is connected with the positioning die 21, it can be preliminarily aligned with the flanging die 13, avoiding the phenomenon that the flanging position is not accurate due to misalignment of the workpiece 30 with the flanging die 13 in the later stage, indirectly improving the accuracy of flanging of the workpiece 30.
[0051] It should be noted that the positioning die 21 can be a block or a ring structure protruding from the second die set 20.
[0052] More specifically, the positioning die 21 has a guide arc surface 211 on the outer periphery, which extends along the circumference of the positioning die 21, so that when the workpiece 30 is assembled with the positioning die 21, it can be more smoothly sleeved on the outer periphery of the positioning die 21 under the guidance of the guide arc surface 211, making the assembly process more smooth.
[0053] The technical means disclosed in the utility model scheme is not limited to the technical means disclosed in the above-mentioned embodiments, but also includes the technical scheme composed of any combination of the above technical features. It should be noted that for ordinary skilled persons in the art, without departing from the principle of the utility model, some improvements and refinements can be made, which are also considered as the protection scope of the utility model.
Claims
1. A flanging die characterized by, The utility model relates to a kind of moulding device, including: Mould body, the mould body includes first mould group and second mould group, the first mould group can be close to or be far from the second mould group movement, the bottom of the first mould group is equipped with flanging die head, the flanging die head is used to press the workpiece when the first mould group is close to the second mould group movement, to make workpiece on forming has flanging;The bottom of the first mould group is equipped with at least two positioning columns, at least two the positioning columns are evenly spaced along the circumference of the first mould group;The positioning column is used to abut with workpiece when the first mould group and the second mould group are close to each other; Driving assembly, the driving assembly is used to drive the first mould group close to or be far from the second mould group movement.
2. The flanging die of claim 1 wherein, The positioning column is equipped with elastic component, the elastic component is used to provide a elastic stress when the first mould group is close to the second mould group movement, to drive the positioning column press workpiece.
3. The flanging die of claim 2 wherein, The positioning column is movably arranged in the first mould group, the elastic component is spring, the spring is arranged at the bottom of the first mould group, and is sleeved on the outer periphery of the positioning column.
4. The flanging die of claim 3 wherein, The bottom of the positioning column is equipped with compression ring, the compression ring is arranged along the circumference of the positioning column.
5. The flanging die of claim 3 wherein, The first mould group has through hole, and the positioning column is movably arranged in the through hole.
6. Flanging die according to any one of claims 1-5, characterized in that The flanging die head has positioning section and flanging section, the flanging section is arranged along the circumference of the positioning section, and protrudes from the circumferential edge of the positioning section;The positioning section is used to be arranged in workpiece when the first mould group is close to the second mould group movement, and the flanging section is used to press the end wall of workpiece after the positioning section is arranged in workpiece;At least two the positioning columns are spaced apart from the flanging die head.
7. The flanging die of claim 6 wherein, The positioning section and the flanging section are connected through arc surface.
8. The flanging die of any one of claims 1-5, wherein, The top end of the second mould group is equipped with positioning mould, and the positioning mould is correspondingly arranged with the flanging die head.
9. The flanging die of claim 8, wherein, The outer periphery of the positioning mould has guide arc surface, and the guide arc surface extends along the circumference of the positioning mould.
10. The flanging die of any one of claims 1-5, wherein, The positioning column is equipped with at least four, and at least four the positioning columns are evenly and spaced apart along the outer periphery of the flanging die head.