Lateral pushing forming mechanism
Through the side push forming mechanism, the flange forming process of automobile parts is simplified, the problem of multiple processes in traditional processes is solved, and the efficient and low-cost forming process is achieved, and the product quality and production line stability is improved.
Patent Information
- Application Number
- CN202421935433.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-12
AI Technical Summary
The traditional flange forming process of automotive parts is limited by the stamping direction, and the forming block can only move up and down in a straight line, requiring multiple processes, resulting in low production efficiency and high cost.
A side push forming mechanism is designed. Through the oppositely arranged upper mold seat and lower mold seat, the side push forming of the workpiece is realized by the cooperation of nitrogen springs and sliders, and the forming process is simplified into two processes: bending and side pushing.
It significantly improves production efficiency, reduces production costs, improves the dimensional accuracy and consistency of products, reduces manual intervention, and improves the stability and reliability of the production line.
Smart Images
Figure CN223083604U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of automotive part processing, and particularly to a side-pushing forming mechanism. Background Art
[0002] In the field of automotive part manufacturing, flanging forming is a crucial process. Flanging forming not only requires high precision and consistency but also needs to consider production efficiency and manufacturing cost.
[0003] Currently, when dealing with the flanging of automotive parts with negative angle profiles, a multi-step stamping process is usually adopted, specifically including three processes: pre-bending, primary bending, and secondary bending.
[0004] Limited by the stamping direction, traditional forming blocks can only move linearly up and down and cannot directly meet the forming requirements on the side. This limitation makes it necessary to use multiple processes to gradually approach the final shape when dealing with parts with negative angle profiles, requiring additional time and labor, reducing the overall production efficiency, and thus increasing the production difficulty and cost.
[0005] In view of the above problems, a side-pushing forming mechanism is now designed. Utility Model Content
[0006] The embodiments of this application provide a side-pushing forming mechanism to solve the problems in the related art that, limited by the stamping direction, the forming block can only move linearly up and down, the traditional process requires three processes, the production cost is high, and the efficiency is low.
[0007] In a first aspect, a side-pushing forming mechanism is provided, including:
[0008] An upper die base and a lower die base arranged oppositely. A blanking table for placing workpieces is provided on the lower die base. The blanking table can elastically expand and contract. An upper clamping plate is provided on the upper die base. An elastic and retractable stripping member is embedded at the bottom of the upper clamping plate. When the upper die base and the lower die base are closed, the stripping member squeezes and fixes the workpiece on the blanking table.
[0009] A slider is slidably arranged at the bottom of the upper clamping plate. A forming punch is arranged on one side of the slider close to the stripping member. A driving block is provided on the lower die base.
[0010] When the upper die base and the lower die base are closed, the driving block guides the slider to move towards the side close to the blanking table, and the forming punch squeezes and forms the workpiece.
[0011] In some embodiments, the blanking table includes two groups of nitrogen springs I and a lower floating plate. The two groups of nitrogen springs I are arranged on the lower die base, and the lower floating plate is arranged on the piston rods of the two groups of nitrogen springs I.
[0012] The lower floating plate has an end face for placing the workpiece.
[0013] In some embodiments, a first receiving cavity for receiving a stripping member is formed at the bottom of the upper clamping plate, and a second receiving cavity for receiving a slider is formed at the bottom of the upper clamping plate.
[0014] In some embodiments, the stripping member includes a nitrogen spring II disposed inside the first receiving cavity. The other end of the nitrogen spring II extends into the upper die base, and a stripping plate is connected to the piston rod of the nitrogen spring II.
[0015] In some embodiments, the stripping plate has a forming surface adapted to the forming male die.
[0016] When the upper die base and the lower die base are closed, the forming surface on the stripping plate contacts one side of the workpiece, and the forming male die extrudes the other side of the workpiece.
[0017] In some embodiments, the slider includes a mounting block slidably disposed inside the second receiving cavity, and the forming male die is disposed on the side of the mounting block close to the stripping plate.
[0018] A groove is formed inside the second receiving cavity, a nitrogen spring III is disposed inside the groove, and a transmission block is disposed on the piston rod of the nitrogen spring III; the transmission block is connected to the mounting block.
[0019] In some embodiments, inclined surfaces are disposed on both the side of the mounting block away from the forming male die and above the driving block, and the two inclined surfaces are adapted to each other.
[0020] When the upper die base and the lower die base are closed, the mounting block is guided to approach the lower floating plate through the inclined surface.
[0021] The embodiment of the present application provides a side-pushing forming mechanism. By means of side-pushing forming, the forming process that originally required multiple processes (such as pre-bending and multiple bending) is simplified to only two processes (bending and side-pushing), significantly improving the production efficiency and reducing the production cost. By reducing the number of processes, the accumulation of factors such as material springback and deformation during multiple stamping processes is avoided, thereby improving the dimensional accuracy and consistency of the product.
[0022] Through the simplification of the process, the design, manufacturing and maintenance costs of the mold are also correspondingly reduced, improving the economic benefits. Moreover, the entire forming process has a high degree of automation, reducing manual intervention, lowering the operation complexity, and improving the stability and reliability of the production line. Description of the Drawings
[0023] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0024] Figure 1 Three-dimensional structure diagram of the closed mold state provided by the embodiment of the present application;
[0025] Figure 2 Three-dimensional structure diagram of the open mold state provided by the embodiment of the present application;
[0026] Figure 3 Front elevation sectional view of the closed mold state provided by the embodiment of the present application;
[0027] Figure 4 Front elevation sectional view of the open mold state provided by the embodiment of the present application;
[0028] Figure 5 Three-dimensional structure diagram of the connection structure between the clamping plate and the module provided by the embodiment of the present application;
[0029] Figure 6 Three-dimensional structure diagram of the clamping plate provided by the embodiment of the present application;
[0030] Figure 7 Three-dimensional structure diagram of the negative angle modeling part provided by the embodiment of the present application;
[0031] Figure 8 Schematic diagram of the production process of the traditional negative angle modeling part provided by the embodiment of the present application;
[0032] Figure 9 Schematic diagram of the production process of the negative angle modeling part in the present implementation provided by the embodiment of the present application.
[0033] In the figure: 1. Upper die base; 2. Lower die base; 3. Stock table; 31. Nitrogen spring one; 32. Lower floating plate; 321. End face; 4. Upper clamping plate; 41. Accommodating cavity one; 42. Accommodating cavity two; 5. Stripping part; 51. Nitrogen spring two; 52. Stripping plate; 521. Forming surface; 6. Slide block; 61. Installation block; 62. Nitrogen spring three; 63. Transmission block; 7. Forming punch; 8. Driving block; 9. Inclined plane. Detailed implementation manners
[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts fall within the scope of protection of this application.
[0035] The embodiments of this application provide a side-pushing forming mechanism, which can solve the problems in the related art that due to the limitation of the stamping direction, the forming block can only move linearly up and down, the traditional process requires 3 processes, the production cost is high, and the efficiency is low.
[0036] Please refer to Figures 1 - 3 , a side-pushing forming mechanism includes: an upper die base 1 and a lower die base 2 arranged oppositely. A blanking table 3 for placing workpieces is provided on the lower die base 2. The blanking table 3 can elastically expand and contract. An upper clamping plate 4 is provided on the upper die base 1. An elastic-expanding and contracting stripping member 5 is embedded at the bottom of the upper clamping plate 4. When the upper die base 1 and the lower die base 2 are closed, the stripping member 5 squeezes and fixes the workpiece on the blanking table 3.
[0037] A slider 6 is slidably arranged at the bottom of the upper clamping plate 4. A forming male die 7 is arranged on one side of the slider 6 close to the stripping member 5. A driving block 8 is provided on the lower die base 2.
[0038] When the upper die base 1 and the lower die base 2 are closed, the driving block 8 guides the slider 6 to move towards the side close to the blanking table 3, and the forming male die 7 squeezes and forms the workpiece.
[0039] Initial state: The upper die base 1 is located above the press, the lower die base 2 is fixed, the blanking table 3 is located at the initial position and is in an uncompressed state, and a workpiece to be processed is placed thereon. The stripping member 5 at the bottom of the upper clamping plate 4 is in an uncompressed state, and the slider 6 and the forming male die 7 are located at the starting positions.
[0040] The upper die descends: Under the action of the press, the upper die base 1 starts to move downward. When the stripping member 5 contacts the product placed on the blanking table 3, the stripping member 5 starts to compress and squeezes and fixes the workpiece on the blanking table 3.
[0041] As the upper die continues to descend, the blanking table 3 starts to move downward under the combined action of the workpiece and the stripping member 5, and the blanking table 3 is compressed, providing space for the subsequent forming process.
[0042] Side-push forming: At this time, the forming male die 7 is fixed on the slider 6. Under the guidance of the driving block 8, the slider 6 moves towards the side close to the loading table 3, and the forming male die 7 squeezes the workpiece accordingly to achieve side-push forming. When the loading table 3 is compressed to reach a preset compression stroke, the press slider reaches the bottom dead center, and the product forming is completed.
[0043] Reset and demolding: Then the press moves upward, the stripper plate 52 returns to its natural state, and the stripper plate 52 rises to be removed from the product. At the same time, the loading table 3 is under regional pressure until it returns to the initial position.
[0044] By means of side-push forming, the forming process that originally required multiple processes (such as pre-bending and multiple bendings) is simplified to only two processes (bending and side-push), significantly improving the production efficiency and reducing the production cost. By reducing the number of processes, the accumulation of factors such as material springback and deformation during multiple stamping processes is avoided, thereby improving the dimensional accuracy and consistency of the product.
[0045] Through the simplification of the process, the design, manufacturing, and maintenance costs of the mold are also correspondingly reduced, improving the economic benefits. Moreover, the entire forming process has a high degree of automation, reducing manual intervention, lowering the operation complexity, and improving the stability and reliability of the production line.
[0046] Specifically, as Figure 3 and Figure 4 shown, in this implementation scheme, the loading table 3 includes two groups of nitrogen springs I 31 and the lower floating plate 32. The two groups of nitrogen springs I 31 are arranged on the lower die base 2, and the lower floating plate 32 is arranged on the piston rods of the two groups of nitrogen springs I 31; the lower floating plate 32 has an end face 321 for placing the workpiece. A groove for placing the nitrogen spring I 31 is opened on the lower die base 2.
[0047] The two groups of nitrogen springs I 31 are installed on the lower die base 2. Due to their high load-bearing capacity, good buffering performance, and repeatability, nitrogen springs are often used in scenarios that require precise position control or provide stable support.
[0048] The main function of the nitrogen spring I 31 is to provide stable supporting force and adjust the height of the lower floating plate 32 through the telescopic movement of its piston rod, so as to realize the rapid placement and removal of the workpiece.
[0049] The lower floating plate 32 is directly installed on the piston rods of the two groups of nitrogen springs I 31. This enables the lower floating plate 32 to achieve smooth movement in the vertical direction under the action of the nitrogen spring. The lower floating plate 32 has an end face 321 for placing the workpiece, and this end face 321 is flat and stable, ensuring that the workpiece will not shake or shift during the processing or positioning process.
[0050] To accommodate and fix the first nitrogen spring 31, corresponding grooves are specially provided on the lower die base 2. The dimensions and positions of these grooves need to match those of the first nitrogen spring 31 to ensure that the nitrogen spring can be stably installed on the lower die base without affecting its normal operation and adjustment function.
[0051] It should be noted that, as Figure 5 and Figure 6 shown in this embodiment, a first receiving cavity 41 for accommodating the stripping member 5 is provided at the bottom of the upper clamping plate 4, and a second receiving cavity 42 for accommodating the slider 6 is provided at the bottom of the upper clamping plate 4.
[0052] The main function of the first receiving cavity 41 is to accommodate the stripping member 5. The dimensions and shape of the first receiving cavity 41 need to match those of the stripping member 5 to ensure that the stripping member can be stably installed on the upper clamping plate 4 and can work smoothly during the closing and opening of the mold.
[0053] The second receiving cavity 42 is used to accommodate the slider 6. The slider 6 plays a key role in the side-pushing forming process of the mold. It carries the forming male die 7 and moves along a specific direction to extrude the workpiece into shape. The second receiving cavity 42 needs to consider the movement trajectory and required space of the slider 6. To ensure that the slider 6 can move smoothly and be accurately positioned at the required position.
[0054] Overall layout: The first receiving cavity 41 and the second receiving cavity 42 at the bottom of the upper clamping plate 4 achieve the coordinated work of the stripping member 5 and the slider 6 through a reasonable layout. During the closing process of the mold, the stripping member 5 first contacts and fixes the workpiece; subsequently, the slider 6 moves under the guidance of the driving block 8, driving the forming male die 7 to extrude the workpiece into shape.
[0055] In one example, as Figure 4 shown, the stripping member 5 includes a second nitrogen spring 51 disposed inside the first receiving cavity 41. The other end of the second nitrogen spring 51 extends into the upper die base 1, and a stripping plate 52 is connected to the piston rod of the second nitrogen spring 51.
[0056] The second nitrogen spring 51 is disposed inside the first receiving cavity 41. This receiving cavity is specially designed for the stripping member 5 at the bottom of the upper clamping plate 4 to ensure that the second nitrogen spring 51 can be stably installed and operate.
[0057] The other end of the second nitrogen spring 51 extends into the upper die base 1. This design allows the energy of the second nitrogen spring 51 to be stored in the space between the upper die base 1 and the clamping plate 4 when it is compressed. When the energy needs to be released, the second nitrogen spring 51 can push the stripping plate 52 upward.
[0058] When the nitrogen spring II 51 is compressed or releases energy, the stripper plate 52 will move up and down accordingly. When the mold is closed, the stripper plate 52 is responsible for contacting and fixing the workpiece. When the mold is opened, the nitrogen spring II 51 releases energy to push the stripper plate 52 upward, thereby ejecting the workpiece from the mold.
[0059] In one example, as Figure 5 shown, the stripper plate 52 has a forming surface 521 adapted to the forming male die 7; when the upper die holder 1 and the lower die holder 2 are closed, the forming surface 521 on the stripper plate 52 contacts one side of the workpiece, and the forming male die 7 extrudes the other side of the workpiece.
[0060] The forming surface 521 is arranged on the stripper plate 52, and its shape and size correspond to those of the forming male die 7. When the mold is closed, the forming surface 521 closely contacts one side of the workpiece, providing stable support and positioning for the workpiece.
[0061] Since the forming surface 521 is adapted to the forming male die 7, they can act together on different sides of the workpiece to achieve precise forming of the workpiece. This design helps to reduce deviations and defects during the forming process, improving the quality and consistency of the product.
[0062] When the upper die holder 1 and the lower die holder 2 are closed, the stripper plate 52 moves downward under the action of the nitrogen spring II 51 until the forming surface 521 closely contacts one side of the workpiece. At the same time, the forming male die 7 moves toward the other side of the workpiece driven by the slider 6. As the forming male die 7 continues to move, it begins to extrude and form the workpiece. During this process, the forming surface 521 not only provides stable support for the workpiece but also limits the deformation range of the workpiece through its shape and size, ensuring the accuracy and controllability of the forming process. After the mold is opened, the nitrogen spring II 51 releases energy to push the stripper plate 52 upward. At this time, the forming surface 521 is separated from the workpiece, and at the same time, the forming male die 7 also returns to its original position. The workpiece is ejected from the mold under the combined action of the stripper plate 52 and the forming male die 7.
[0063] The matching design of the forming surface 521 and the forming male die 7 ensures the stability and accuracy of the workpiece during the forming process, reducing forming deviations and defects. The forming surface 521 provides stable support and positioning for the workpiece, enhancing the fixing and supporting ability of the mold for the workpiece.
[0064] The slider 6 in this embodiment includes a mounting block 61 slidably arranged inside the second receiving cavity 42, and the forming male die 7 is arranged on the side of the mounting block 61 close to the stripper plate 52; a groove is formed inside the second receiving cavity 42, and a nitrogen spring III 62 is arranged inside the groove, and a transmission block 63 is arranged on the piston rod of the nitrogen spring III 62; the transmission block 63 is connected to the mounting block 61.
[0065] During the closing process of the mold, the nitrogen spring III 62 is compressed and stores energy. At the same time, the mounting block 61 moves along the receiving cavity II 42 towards the stripper plate 52 under the action of the mold closing force until the forming male die 7 contacts the workpiece and begins to extrude and form. As the mold closes further, the nitrogen spring III 62 continues to be compressed and provides a stable supporting force. The forming male die 7 precisely extrudes and forms the workpiece under the drive of the mounting block 61.
[0066] When the mold opens, the nitrogen spring III 62 releases the stored energy and pushes the transmission block 63 and the mounting block 61 to move in opposite directions. In this way, the forming male die 7 separates from the workpiece, and the workpiece is ejected from the mold under the action of the stripper plate 52.
[0067] By providing a stable driving force and supporting force through the nitrogen spring III 62, it ensures the smooth and accurate movement of the mounting block 61 and the forming male die 7 during the mold closing and opening processes. At the same time, it can quickly complete the forming and demolding operations of the workpiece, improving production efficiency.
[0068] Specifically, inclined surfaces 9 are provided on both the side of the mounting block 61 away from the forming male die 7 and above the driving block 8, and the two inclined surfaces 9 are mutually adapted; when the upper die holder 1 closes with the lower die holder 2, the mounting block 61 is guided to approach the lower floating plate 32 through the inclined surface 9.
[0069] An inclined surface 9 is provided on the side of the mounting block 61 away from the forming male die 7, and this inclined surface forms a certain angle with the moving direction of the mounting block 61. This design allows the inclined surface 9 to interact with the inclined surface of the driving block 8 when the mounting block 61 moves, thereby guiding the mounting block 61 to move along a predetermined trajectory.
[0070] An inclined surface 9 is also provided above the driving block 8, and this inclined surface is mutually adapted to the inclined surface on the mounting block 61. When the mold closes, the two inclined surfaces 9 will contact each other and generate a force, thereby guiding the mounting block 61 to move in a specific direction.
[0071] When the upper die holder 1 starts to move downward and closes with the lower die holder 2, the driving block 8 will also move accordingly. At this time, the inclined surface 9 on the driving block 8 will contact the inclined surface 9 on the mounting block 61. Since the two inclined surfaces are mutually adapted and form a certain angle, a downward component force or a so-called thrust will be generated between them. This component force will act on the mounting block 61 along the direction of the inclined surface, pushing the mounting block 61 to slide downward along the receiving cavity II 42 and approach the lower floating plate 32.
[0072] During the movement of the mounting block 61, the forming male die 7 thereon will gradually approach the workpiece. When the mold is fully closed, the forming male die 7 will be in close contact with the workpiece and begin to extrude and form.
[0073] Through the setting of the inclined plane 9, the precise guiding and positioning of the mounting block 61 are achieved. This helps to ensure that the mounting block 61 can move smoothly along a predetermined trajectory during the mold closing process, avoiding forming deviations caused by offset or shaking.
[0074] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0075] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.
[0076] The above are only the specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features claimed herein.
Claims
1. A side-pushing forming mechanism, characterized in that, Comprising: An upper die base (1) and a lower die base (2) arranged oppositely. A blanking table (3) for placing a workpiece is provided on the lower die base (2), and the blanking table (3) can elastically expand and contract. An upper clamping plate (4) is provided on the upper die base (1), and a stripping member (5) that can elastically expand and contract is embedded at the bottom of the upper clamping plate (4). When the upper die base (1) and the lower die base (2) are closed, the stripping member (5) squeezes and fixes the workpiece on the blanking table (3). A slider (6) is slidably arranged at the bottom of the upper clamping plate (4). A forming male die (7) is provided on one side of the slider (6) close to the stripping member (5), and a driving block (8) is provided on the lower die base (2). When the upper die base (1) and the lower die base (2) are closed, the driving block (8) guides the slider (6) to move towards the side close to the blanking table (3), and the forming male die (7) extrudes and forms the workpiece.
2. A side-pushing forming mechanism according to claim 1, characterized in that: The blanking table (3) comprises two groups of nitrogen gas springs I (31) and a lower floating plate (32). The two groups of nitrogen gas springs I (31) are arranged on the lower die base (2), and the lower floating plate (32) is arranged on the piston rods of the two groups of nitrogen gas springs I (31). The lower floating plate (32) has an end face (321) for placing the workpiece.
3. A side-pushing forming mechanism according to claim 2, characterized in that: A receiving cavity I (41) for accommodating the stripping member (5) is formed at the bottom of the upper clamping plate (4), and a receiving cavity II (42) for accommodating the slider (6) is formed at the bottom of the upper clamping plate (4).
4. A side-pushing forming mechanism according to claim 3, characterized in that: The stripping member (5) comprises a nitrogen gas spring II (51) arranged inside the receiving cavity I (41). The other end of the nitrogen gas spring II (51) extends into the upper die base (1), and a stripping plate (52) is connected to the piston rod of the nitrogen gas spring II (51).
5. A side-pushing forming mechanism according to claim 4, characterized in that: The stripping plate (52) has a forming surface (521) adapted to the forming male die (7). When the upper die base (1) and the lower die base (2) are closed, the forming surface (521) on the stripping plate (52) contacts one side of the workpiece, and the forming male die (7) extrudes the other side of the workpiece.
6. A side-pushing forming mechanism according to claim 4, characterized in that: The slider (6) comprises a mounting block (61) slidably arranged inside the receiving cavity II (42). The forming male die (7) is arranged on one side of the mounting block (61) close to the stripping plate (52). A groove is formed inside the receiving cavity II (42), and a nitrogen gas spring III (62) is arranged inside the groove. A transmission block (63) is arranged on the piston rod of the nitrogen gas spring III (62), and the transmission block (63) is connected to the mounting block (61).
7. A side-pushing forming mechanism according to claim 6, characterized in that: One side of the mounting block (61) away from the male mold (7) and above the driving block (8) are both provided with inclined surfaces (9), and the two inclined surfaces (9) are adapted to each other; When the upper die base (1) and the lower die base (2) are closed, the mounting block (61) is guided to approach the lower floating plate (32) through the inclined surface (9).