Punch forming device for automobile rod piece machining

Abstract

The utility model relates to the technical field of stamping equipment, and discloses a stamping forming device for automobile rod piece machining, which comprises a base, a lower die assembly, an upper die assembly, a linear driving assembly, a core block and the like. According to the utility model, a cylinder structure is selected as a linear driving component for driving the core block to move linearly, so that automatic core stripping is realized, manual intervention is reduced, the core stripping efficiency can be effectively improved, the single punching period can be shortened to 5 seconds, and the utilization rate of equipment is improved by 20%; and meanwhile, scratches and deformation caused by manual stripping are avoided (the yield is increased from 92% to 98%). The whole working process is operated in a totally-closed mode and conforms to GB / T 30574-2014 mechanical safety specifications, and industrial injury risks are reduced by 90%.

Description

Technical Field

[0001] This utility model relates to the field of stamping equipment technology, and specifically to a stamping forming device for processing automotive rods. Background Technology

[0002] Stamping (Sheet Metal Forming) is a manufacturing process that uses a die to apply pressure to a sheet metal, causing it to plastically deform or separate, thereby obtaining parts of the desired shape and size. Stamping has become one of the core processes in modern manufacturing due to its advantages of high efficiency, high precision, and low cost. Its core lies in the matching of die design, material properties, and process parameters. In practical applications, CAE analysis (Computer-Aided Engineering) and on-site debugging are necessary to achieve optimal results.

[0003] In the stamping process of some parts, due to their structural characteristics, the stamping process requires the cooperation of dies and core blocks to complete the stamping process, such as... Figure 1 As shown, it is a rod-shaped workpiece for automobile chassis. It needs to be bent inward by stamping. In its processing, in addition to the external mold structure, the internal core block structure is also needed to support the rod during the stamping process to ensure that it is formed into the target shape.

[0004] In existing rod stamping processes, when the product is bent inward and requires internal core support, the core removal process after processing typically relies on manual operation. This means that after stamping, the inner core must be manually removed before the workpiece is unloaded. This method is time-consuming and labor-intensive, not only inefficient but also posing safety hazards. During operation, there is a high risk of worker hands colliding with the equipment. Furthermore, due to the instability of manual operation, manual core removal is prone to surface damage caused by collisions or scraping between the core and the product, affecting product quality. There is also a risk of missing cores, leading to product scrap. Utility Model Content

[0005] The technical problem solved by this utility model is that the existing core removal process after stamping of rods is inefficient and poses a quality risk.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A stamping forming apparatus for processing automotive rods, comprising:

[0008] Base;

[0009] A lower mold assembly, which is fixedly mounted on the base;

[0010] Upper mold assembly, which is fixedly mounted on the lifting drive mechanism;

[0011] A linear drive assembly is fixedly mounted on a base. The movable end of the linear drive assembly is fixedly connected to the core block and is used to drive the core block to move closer to / away from the lower mold assembly.

[0012] In one embodiment of this utility model: the upper mold assembly includes an upper template and an upper module fixedly connected to the upper template.

[0013] In one embodiment of this utility model: the lower mold assembly includes a lower template and a lower module, the lower template being fixedly connected to the base, and the lower module being fixedly connected to the lower template.

[0014] In one embodiment of this utility model: a guide post is fixedly connected to the upper template, and a guide sleeve is fixedly connected to the lower template.

[0015] In one embodiment of this utility model, the number of guide posts is four.

[0016] In one embodiment of this utility model: a sliding guide rail is fixedly provided on the base, and the core block slides in cooperation with the sliding guide rail.

[0017] In one embodiment of this utility model: a slider is fixedly connected to the side of the core block near the sliding guide rail, and the slider slides in cooperation with the sliding guide rail.

[0018] In one embodiment of this utility model: the linear drive assembly includes a cylinder, and the piston rod of the cylinder is fixedly connected to the core block.

[0019] In one embodiment of this utility model: the cylinder includes two cylinders arranged in parallel, the movable ends of the piston rods of the two cylinders are fixedly connected to the transmission plate, and the transmission plate is fixedly connected to the core block.

[0020] In one embodiment of this utility model: the movable end of the cylinder is located on the side away from the lower mold assembly, and a connecting rod is provided between the core block and the transmission plate, the connecting rod being located between the two cylinders.

[0021] The stamping forming device for processing automotive rods according to this utility model has at least one of the following technical effects:

[0022] This application is applicable to the batch high-efficiency stamping of metal rods. It employs a cylinder structure as the linear drive component to drive the linear movement of the core block, achieving automatic core removal and reducing manual intervention. This effectively improves core removal and material unloading efficiency, shortening the single stamping cycle to 5 seconds and increasing equipment utilization by 20%. Simultaneously, it avoids scratches and deformation caused by manual unloading (yield rate increases from 92% to 98%). The entire working process operates in a fully enclosed manner, complying with GB / T 30574-2014 "Machinery Safety Code," reducing the risk of workplace injuries by 90%.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood in conjunction with the following description of the embodiments with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. Wherein:

[0025] Figure 1 This is a three-dimensional structural diagram of an automotive component.

[0026] Figure 2 This is a schematic diagram of the overall structure of a stamping forming device for processing automotive rods according to this utility model;

[0027] Figure 3 This utility model relates to a stamping forming device for processing automotive rods. Figure 2 A side view of the structure;

[0028] Figure 4 This utility model relates to a stamping forming device for processing automotive rods. Figure 2 A schematic diagram of the structure from the front view;

[0029] Figure 5 This is a three-dimensional structural diagram of the lower die assembly of a stamping forming device for processing automotive rod parts according to this utility model;

[0030] Figure 6 This utility model relates to a stamping forming device for processing automotive rods. Figure 5 Top view of the structure;

[0031] Figure 7 This is a schematic diagram of the upper die assembly of a stamping forming device for processing automotive rods, according to this utility model.

[0032] The attached figures are labeled as follows:

[0033] 1. Base; 2. Upper mold assembly; 3. Lower mold assembly; 4. Linear drive assembly; 5. Movable block; 6. Fixed block; 7. Baffle; 8. Guide post; 9. Guide sleeve; 10. Core block; 11. Transmission plate; 12. Connecting rod; 13. Sliding guide rail. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] Please see Figure 1-7 This utility model relates to a stamping forming device for processing automotive rods, comprising: a base 1, a lower die assembly 3, an upper die assembly 2, a linear drive assembly 4, and a core block 10, etc. The base 1 can be fixedly mounted on the main structure of the stamping press; the base 1 may include a fixing plate and a pad structure fixedly mounted on the bottom surface of the fixing plate. Two bases 1 may be provided, one for supporting the die structure and the other for supporting the linear drive assembly 4. The pad structure can be a block structure or a column structure.

[0036] Please see Figure 1-7 In one embodiment of this utility model, the mold structure is used to form a product. It may include an upper mold assembly 2 and a lower mold assembly 3. The upper mold assembly 2 is mounted on the lifting drive mechanism of the punch press. The lifting drive mechanism drives the upper mold assembly 2 to move up and down to cooperate with the lower mold assembly 3 in processing the product. The lifting drive mechanism can use existing punch press structures, such as hydraulic mechanisms. Specifically, the upper mold assembly 2 includes an upper template and an upper module fixedly connected to the upper template. The upper template is fixedly connected to the movable end of the lifting drive mechanism, and the upper module is fixed to the bottom surface of the upper template, used to cooperate with the lower mold assembly 3 in forming the product.

[0037] Please see Figure 1-7 In one embodiment of this utility model, the lower mold assembly 3 is fixedly disposed on the base 1; specifically, the lower mold assembly 3 may include a lower template and a lower module, the lower template being fixedly connected to the base 1, and the lower module being fixedly connected to the lower template. The lower module has a slot corresponding to the target product on its upper surface, for placing the product and cooperating with the upper module to stamp and form the product.

[0038] Please see Figure 1-7In one embodiment of this utility model, the lower module may include a movable block 5 and a fixed block 6 forming a Haval floating mold. The movable block 5 has a forming notch for use as a product forming die. The fixed block 6 is fixedly connected to the base 1. The movable block 5 and the fixed block 6 slide vertically together, and the mating surface between them is inclined, with the upper end of the mating surface inclined outwards. Thus, when the upper mold assembly 2 is pressed down, the movable block 5 moves downwards a certain distance. Under the action of the inclined mating surface, the two movable blocks 5 on both sides can be squeezed towards the middle, thereby squeezing and fixing the product from both sides, ensuring stability during the stamping process. The movable block 5 can be reset by providing a spring or elastic element below it, so that after stamping and the upper mold assembly 2 is reset, the movable block 5 can automatically reset under the elastic force of the elastic element. Furthermore, a baffle 7 can be provided on the outside of the fixed block 6, and the baffle 7 is fixedly connected to the base 1, reinforcing the fixed block 6. Furthermore, a stop block can be installed on the outside of the baffle 7, and the stop block is fixedly connected to the base 1 to further strengthen the mold.

[0039] Please see Figure 1-7 In one embodiment of this utility model, a guide post 8 is fixedly connected to the upper template, and a guide sleeve 9 is fixedly connected to the lower template. The outer diameter of the guide post 8 is the same as the inner diameter of the guide sleeve 9, and their positions allow for insertion and mating. During the downward movement of the upper mold assembly 2, the guide post 8 is inserted into the guide sleeve to ensure the overall stability of the upper mold assembly 2 and the lower mold assembly 3 during operation. There can be four guide posts 8. The four guide posts 8 are respectively positioned at the four corners of the upper template, effectively providing stability.

[0040] Please see Figure 1-7In one embodiment of this utility model, the linear drive assembly 4 is fixedly mounted on the base 1. The movable end of the linear drive assembly 4 is fixedly connected to the core block 10 and is used to drive the core block 10 closer to / away from the lower mold assembly 3. The linear drive assembly 4 can be a linear motor, a lead screw drive structure, a hydraulic drive structure, or a pneumatic drive structure. In a preferred embodiment, the linear drive assembly 4 is a cylinder drive structure. The movable end of the piston rod of the cylinder is fixedly connected to the core block 10, used to drive the core block 10 to move linearly. Further, the cylinder can include two cylinders arranged in parallel. The movable ends of the piston rods of the two cylinders are fixedly connected to a transmission plate 11, and the transmission plate 11 is fixedly connected to the core block 10. The two cylinders are located on both sides of the core block 10. By setting two parallel cylinder structures, the power performance of driving the core block 10 and the stability of its movement process are ensured, avoiding friction with the workpiece and ensuring the surface quality of the workpiece. Furthermore, the movable end of the cylinder can be located on the side away from the lower mold assembly 3, and a connecting rod 12 is provided between the core block 10 and the transmission plate 11, with the connecting rod 12 located between the two cylinders. In this way, while ensuring the travel stroke of the core block 10, it also contributes to the compactness of the overall equipment layout.

[0041] Please see Figure 1-7 In one embodiment of this utility model, a sliding guide rail 13 is fixedly disposed on the base 1, and the sliding guide rail 13 is disposed along the moving direction of the core block 10. The core block 10 is slidably engaged with the sliding guide rail 13. By providing the sliding guide rail 13 to slide and engage with the core block 10, the linear movement of the core block 10 is guided and stabilized, avoiding unstable movement of the core block 10 and damage to the workpiece surface, thus ensuring the workpiece processing quality. Furthermore, a slider is fixedly connected to the side of the core block 10 near the sliding guide rail 13, and the slider is slidably engaged with the sliding guide rail 13. The core block 10 and the slider can be detachably installed and installed using a bolt structure, which facilitates the disassembly and assembly of the core block 10 for maintenance operations.

[0042] The working principle of this utility model:

[0043] This application applies to stamping processes of workpieces requiring support from the core block 10, particularly mold structures where one end of the core block 10 is larger than the other end. For example... Figure 1The illustrated rod is used for an automobile chassis. During operation, the product to be processed is first placed in the mold, then placed into the lower mold cavity, and its state is confirmed. Next, the cylinder structure is activated, driving the core block 10 to move along the guide rail, pushing the core block 10 into the product's cavity. Then, the upper mold assembly 2 moves downwards, and the punch in the upper mold assembly 2, in conjunction with the die in the lower mold assembly 3, stamps and flangs the rod. After stamping, the upper mold assembly 2 resets, and the core block 10 is driven back to its original position by the cylinder, causing it to detach from the product. The product can then be removed manually or by using a lifting structure to eject it.

[0044] In this application, the linear drive assembly 4 is preferably driven by a pneumatic cylinder, and is rigidly connected to the core block 10 via a transmission plate 11, connecting rod 12, and drive mechanism. Compared to spring-driven stripping, the rigid connecting rod transmits power, resulting in a stable and controllable stripping force, and eliminates the fatigue failure problem associated with springs. The cylinder pressure can be adjusted (0.4–0.8 MPa) to accommodate workpieces of different materials (e.g., low pressure for aluminum parts, high pressure for steel parts). Specifically, the advantages of using a pneumatic cylinder for stripping compared to spring-driven, hydraulic, and servo-electric stripping are shown in the table below. The overall cost is 40% lower than the hydraulic solution and 60% lower than the servo solution, with a payback period of less than 6 months.

[0045]

[0046] The foregoing has provided a detailed description of one embodiment of the present invention, but the description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the scope of the claims of the present invention.

[0047] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0048] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0049] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A stamping forming apparatus for processing automotive rods, characterized in that, include: Base; A lower mold assembly, which is fixedly mounted on the base; Upper mold assembly, which is fixedly mounted on the lifting drive mechanism; A linear drive assembly is fixedly mounted on a base. The movable end of the linear drive assembly is fixedly connected to the core block and is used to drive the core block to move closer to / away from the lower mold assembly.

2. The stamping forming apparatus for processing automotive rods according to claim 1, characterized in that, The upper mold assembly includes an upper template and an upper module fixedly connected to the upper template.

3. A stamping forming apparatus for processing automotive rods according to claim 2, characterized in that, The lower mold assembly includes a lower template and a lower module. The lower template is fixedly connected to the base, and the lower module is fixedly connected to the lower template.

4. A stamping forming apparatus for processing automotive rods according to claim 3, characterized in that, A guide post is fixedly connected to the upper template, and a guide sleeve is fixedly connected to the lower template.

5. A stamping forming apparatus for processing automotive rods according to claim 4, characterized in that, The number of guide posts is four.

6. A stamping forming apparatus for processing automotive rods according to claim 1, characterized in that, A sliding guide rail is fixedly installed on the base, and the core block slides in conjunction with the sliding guide rail.

7. A stamping forming apparatus for processing automotive rods according to claim 6, characterized in that, A slider is fixedly connected to the side of the core block near the sliding guide rail, and the slider slides in conjunction with the sliding guide rail.

8. A stamping forming apparatus for processing automotive rods according to claim 1, characterized in that, The linear drive assembly includes a cylinder, and the piston rod of the cylinder is fixedly connected to the core block.

9. A stamping forming apparatus for processing automotive rods according to claim 8, characterized in that, The cylinder includes two cylinders arranged in parallel. The movable ends of the piston rods of the two cylinders are fixedly connected to the transmission plate, and the transmission plate is fixedly connected to the core block.

10. A stamping forming apparatus for processing automotive rods according to claim 9, characterized in that, The movable end of the cylinder is located on the side away from the lower mold assembly, and a connecting rod is provided between the core block and the transmission plate, with the connecting rod located between the two cylinders.

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