A quick demoulding die for stamping automobile parts

Abstract

The present invention relates to the technical field of automobile parts processing, and specifically to a rapid demoulding die for stamping automobile parts, comprising a lower die seat and an upper die seat arranged directly above the lower die seat, wherein a stamping cavity is arranged inside the lower die block, and a stamping auxiliary component is arranged inside the stamping cavity, and a demoulding auxiliary component is arranged on the surface of the upper die block. The present invention can more flexibly handle the demoulding conditions of different types of automobile parts through the coordinated demoulding force in the up and down directions, and can more effectively overcome the demoulding resistance and ensure the smooth demoulding of the parts by adjusting the thrust size of the second micro-electric cylinder and the stroke of the ejector plate, and the downward pushing action of the ejector plate can prevent the stamped parts from being stuck in the mold due to the residual adsorption force or friction force on the top in the later stage of demoulding, thereby ensuring that the stamped parts can be completely separated from the mold, improving the integrity and success rate of demoulding, reducing the scrap rate caused by incomplete demoulding, and improving production efficiency and product quality.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts processing, in particular to a quick demoulding die for stamping automobile parts. Background Art

[0002] In the stamping production of automotive parts, with the rapid development of the automotive industry, higher and higher requirements are placed on the production efficiency, quality accuracy and service life of molds of parts.

[0003] Traditional stamping dies are often simple in structural design, and their demoulding methods mostly rely on a single ejection mechanism to eject the stamped parts from the bottom. During the demoulding process, due to the large friction between the stamped parts and the surface of the mold cavity, the surface of the stamped parts is easily scratched and worn, which seriously affects the appearance quality and dimensional accuracy of the product. Moreover, for automotive parts with complex shapes, special internal structures or different wall thickness distributions, it is difficult to evenly apply demoulding force with a single bottom ejection method, which often makes it difficult to demould parts, and even causes damage to parts due to uneven local force, greatly reducing the qualified rate of products. In addition, traditional molds lack effective buffer structures. During the stamping process, the rigid impact of the upper and lower molds will not only generate huge noise and interfere with the working environment, but also cause stress concentration on the mold surface, accelerate mold wear, and cause cracks. These problems greatly shorten the service life of the mold, increase the cost of mold maintenance and replacement, and reduce production efficiency, which is not conducive to large-scale production and economic benefit improvement of enterprises.

[0004] Therefore, we proposed a rapid demoulding die for stamping automobile parts. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a rapid demoulding die for stamping automobile parts, which is used to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a quick demoulding die for stamping automobile parts, comprising a lower die base and an upper die base located directly above the lower die base, the top of the lower die base is fixedly provided with fixing columns around, and the tops of the four fixing columns are respectively fixedly connected to the bottom of the upper die base around, the top of the lower die base is fixedly provided with a pad, and the top of the pad is fixedly provided with a lower module through a bolt group, the lower module is provided with a stamping cavity inside, and a stamping auxiliary component is provided inside the stamping cavity;

[0007] The stamping auxiliary component includes an adjustment frame, a fixing frame is fixedly provided on all four sides of the inside of the stamping cavity by a bolt group, and a micro-electric cylinder is fixedly provided on all four sides of the inside of the four fixing frames, a support frame is movably provided on one side of the four fixing frames, and the driving ends of the four micro-electric cylinders in each fixing frame are fixedly connected to the four sides of the support frame on one side, and an adjustment frame is rotatably provided on all four sides of the bottom of the stamping cavity, and one side of the four adjustment frames is respectively in close contact with one side of the four support frames;

[0008] A lifting plate is movably provided at the bottom of the upper mold base, and an upper module is fixedly provided at the bottom of the lifting plate. A hydraulic cylinder is fixedly provided at the top of the upper mold base, and a driving end of the hydraulic cylinder extends to the bottom of the upper mold base, and the bottom end of the driving end of the hydraulic cylinder is fixedly connected to the top of the lifting plate, and a demolding auxiliary component is provided on the surface of the upper module.

[0009] Preferably, positioning slide bars are slidably arranged around the interior of the upper mold base, and the bottom ends of the four positioning slide bars are fixedly connected to the top of the lifting plate.

[0010] Preferably, fixed sleeves are fixedly provided on all four sides of the top of the lower module, and buffer springs are fixedly provided inside the four fixed sleeves, and buffer connecting columns are fixedly provided on all four sides of the bottom of the lifting plate, and the bottom ends of the four buffer connecting columns are respectively slidably connected to the inside of the four fixed sleeves.

[0011] Preferably, a plurality of ejecting grooves are further provided at the bottom of the stamping cavity, and ejecting rods are slidably provided inside the plurality of ejecting grooves, and the bottom ends of the plurality of ejecting rods are driven to slide up and down by a servo electric cylinder provided at the lower part of the lower module.

[0012] Preferably, the demolding auxiliary component includes a fixed demolding slider and a movable demolding slider, the four outer peripheral surfaces of the upper module are fixedly provided with two linear slide rails, one side of the two linear slide rails located on the left and right sides of the upper module is slidably provided with a fixed demolding slider, one side of the two linear slide rails located on the front and rear sides of the upper module is slidably provided with a rotating connecting block, and the bottom of the two rotating connecting blocks is rotatably provided with a movable demolding slider, and one side of the two fixed demolding sliders and the two movable demolding sliders are in contact with the four outer peripheral surfaces of the upper module.

[0013] Preferably, two micro electric cylinders 2 are fixedly arranged inside the upper module, and a ejecting plate is fixedly arranged at the bottom ends of the driving shafts of the two micro electric cylinders 2.

[0014] Preferably, the bottom of the stamping cavity and the inside of the ejector plate are provided with end face cooling channels, the two fixed stripping slides, the movable stripping slide and the four adjustment frames are provided with side cooling channels, the inside of the lower module and the top of the upper die base are provided with cooling circulation pumps, and the input and output ends of the upper and lower cooling circulation pumps are respectively connected through a circulation duct and the inside of the side cooling channel and the end face cooling channel.

[0015] Preferably, linear slide rails are fixedly provided on both sides of the top of the lower module, and movable blocks are slidably provided on the front and rear sides of the tops of the two linear slide rails, positioning frames are fixedly provided between the two movable blocks on the front side and between the two movable blocks on the rear side, and two positioning plates are slidably provided on the opposite sides of the two positioning frames through micro-sliders.

[0016] Compared with the prior art, it has the following beneficial effects:

[0017] 1. In the present invention, the support frame is driven to move by the micro-electric cylinders on the four fixed frames, thereby controlling the flipping action of the adjustment frame. When the adjustment frame flips to one side of the support frame, the adjustment frame originally in contact with the outer peripheral surface of the automobile part can be automatically detached, and no friction force is generated on the outer peripheral surface of the automobile part during this process, thereby avoiding scratches, wear or dimensional deviation caused by friction between the mold and the part surface in the traditional demoulding method, greatly ensuring the stamping precision of automobile parts, and improving the quality and qualified rate of products.

[0018] 2. After the adjustment frame releases the limiting force on the outer peripheral surface of the automotive parts, the ejector rod moves upward under the drive of the servo electric cylinder, which can provide stable and sufficient demoulding force for the automotive parts from the bottom. This bottom ejection method cooperates with the side demoulding action of the adjustment frame to form a full-range demoulding assistance system, so that the automotive parts can be quickly and smoothly ejected from the stamping cavity, effectively improving the demoulding efficiency, reducing the demoulding time, and improving the production cycle. In addition, the number and distribution of ejector rods can be designed and adjusted according to the shape of the stamping cavity and the structure of the automotive parts. For parts with complex shapes, special structures at the bottom or different wall thickness distributions, the ejector rods can be reasonably arranged to evenly apply demoulding force during the demoulding process, avoiding demoulding difficulties or damage to parts due to uneven local force, and improving the adaptability and versatility of the mold to different types of automotive parts.

[0019] 3. In the initial stage of demoulding, when the lifting plate is lifted upward, the fixed demoulding slider and the movable demoulding slider slide downward along the second linear slide rail to limit the surrounding of the inside of the stamping part, which can effectively prevent the stamping part from shaking or deflecting due to the detachment of the upper module during the demoulding process, ensure the stability and accuracy of the demoulding process, and help maintain the shape accuracy of the stamping part. At the same time, through this limiting method, the bottom of the upper module can be smoothly separated from the bottom surface of the stamping part, creating good conditions for the subsequent demoulding steps;

[0020] In addition, the movable stripping slider is connected to the second linear slide rail through a rotating connecting block and can rotate. This design enables it to better adapt to the demoulding needs inside automotive parts of different shapes. For stampings with irregular internal contours, the movable stripping slider can adjust the angle according to the actual shape to ensure that it fits tightly with the stamping parts during the demoulding process without interference, thereby improving the mold's demoulding ability for parts with complex shapes.

[0021] 4. After the stamped part is ejected from the stamping cavity, the micro-electric cylinder 2 drives the ejector plate to move downward to apply a downward thrust to the stamped part, forming a demoulding force system that cooperates with the upward ejection force of the ejector rod. The collaborative demoulding force in the up and down directions can more flexibly handle the demoulding of different types of automotive parts. For some parts with special structures or large adsorption forces at the bottom, the demoulding resistance can be more effectively overcome by adjusting the thrust of the micro-electric cylinder 2 and the stroke of the ejector plate to ensure smooth demoulding of the parts. The downward pushing action of the ejector plate can prevent the stamped part from being stuck in the mold due to the residual adsorption force or friction force on the top in the later stage of demoulding, ensuring that the stamped part can be completely separated from the mold, improving the integrity and success rate of demoulding, reducing the scrap rate caused by incomplete demoulding, and improving production efficiency and product quality.

[0022] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood through implementation of the present invention. The objects and other advantages of the present invention may be realized and obtained through the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of a quick demoulding die structure for stamping automobile parts according to an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of a stamping auxiliary component structure according to an embodiment of the present invention;

[0025] Figure 3 A cross-sectional view of the internal structure of a module according to an embodiment of the present invention;

[0026] Figure 4It is a schematic diagram of the structure of the fixing frame, the supporting frame and the adjusting frame according to an embodiment of the present invention;

[0027] Figure 5 It is a schematic diagram of the internal structure of the pad and the lower module according to an embodiment of the present invention;

[0028] Figure 6 A schematic diagram of a demoulding auxiliary component structure according to an embodiment of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of a fixed stripping slider and a movable stripping slider according to an embodiment of the present invention;

[0030] Figure 8 It is a schematic diagram of the upper module and the top plate structure of an embodiment of the present invention.

[0031] In the figure, 1. lower die base; 2. pad; 3. lower module; 4. upper die base; 5. lifting plate; 6. upper module; 7. stamping cavity; 8. hydraulic cylinder; 9. fixed frame; 10. micro electric cylinder 1; 11. support frame; 12. adjustment frame; 13. side cooling channel; 14. end cooling channel; 15. ejector trough; 16. ejector rod; 17. linear slide 1; 18. movable block; 19. positioning frame; 20. positioning plate; 21. fixed stripping slider; 22. rotating connecting block; 23. movable stripping slider; 24. linear slide 2; 25. micro electric cylinder 2; 26. ejector plate; 27. cooling circulation pump; 28. fixed column; 29. ​​positioning slide rod; 30. fixed sleeve; 31. buffer connecting column. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1:

[0034] See also Figures 1 to 8 As shown, a quick demoulding die for stamping automobile parts comprises a lower die base 1 and an upper die base 4 located directly above the lower die base 1, the top of the lower die base 1 is fixedly provided with fixing columns 28 around, and the top ends of the four fixing columns 28 are respectively fixedly connected with the bottom of the upper die base 4 around, the top of the lower die base 1 is fixedly provided with a backing plate 2, and the top of the backing plate 2 is fixedly provided with a lower module 3 through a bolt group, the lower module 3 is provided with a stamping cavity 7 inside, and the stamping cavity 7 is provided with a stamping auxiliary component inside;

[0035] A lifting plate 5 is movably provided at the bottom of the upper die base 4, and an upper die block 6 is fixedly provided at the bottom of the lifting plate 5. A hydraulic cylinder 8 is fixedly provided at the top of the upper die base 4, and the driving end of the hydraulic cylinder 8 extends to the bottom of the upper die base 4. The bottom end of the driving end of the hydraulic cylinder 8 is fixedly connected to the top of the lifting plate 5. A demoulding auxiliary component is provided on the surface of the upper die block 6. The lifting plate 5 is controlled to move up and down at the bottom of the upper die base 4 by the driving end of the hydraulic cylinder 8, and the stamping cavity 7 provided at the top of the lower die block 3 is cooperated to perform stamping processing and forming on automobile parts.

[0036] Furthermore, positioning slide bars 29 are slidably arranged around the interior of the upper die base 4, and the bottom ends of the four positioning slide bars 29 are fixedly connected to the top of the lifting plate 5. The four positioning slide bars 29 ensure the stability of the lifting plate 5 during the up and down movement, thereby improving the processing accuracy of the stamping parts of automobile parts;

[0037] Furthermore, fixed sleeves 30 are fixedly provided on all four sides of the top of the lower module 3, and buffer springs are fixedly provided inside the four fixed sleeves 30, and buffer connecting columns 31 are fixedly provided on all four sides of the bottom of the lifting plate 5, and the bottom ends of the four buffer connecting columns 31 are respectively slidably connected to the inside of the four fixed sleeves 30. By matching and connecting the lower module 3 and the lifting plate 5 through the four fixed sleeves 30 and the four buffer connecting columns 31, and arranging buffer springs inside the four fixed sleeves 30, the lifting plate 5 can have a certain buffering property during the downward stamping process, thereby avoiding rigid impact between the bottom of the lifting plate 5 and the top of the lower module 3, which can greatly improve the service life of the mold for stamping automotive parts.

[0038] In a specific embodiment, the lower die base 1 and the upper die base 4 in the present invention are fixedly connected by the fixing columns 28 around them, forming the basic frame structure of the mold, ensuring the relative position stability between the upper die base 4 and the lower die base 1, and providing a reliable basis for subsequent stamping and demoulding operations. During the up and down movement of the lifting plate 5, the positioning slide bar 29 plays a guiding and positioning role. It limits the other degrees of freedom of the lifting plate 5 except the up and down directions, so that the lifting plate 5 will not deviate or shake during the movement, thereby ensuring the relative position accuracy between the upper module 6 and the lower module 3, which can effectively improve the processing accuracy of stamping parts of automotive parts, and can effectively reduce the dimensional deviation of stamping parts caused by mold misalignment. shape defects and other problems; in addition, during the stamping process, when the lifting plate 5 descends, the buffer connecting column 31 enters the fixed sleeve 30 and compresses the buffer spring. The buffer spring absorbs part of the impact force, avoiding the rigid impact between the bottom of the lifting plate 5 and the top of the lower module 3, reducing the stress concentration caused by the rigid impact, and reducing the risk of damage such as wear and cracks on the mold surface, thereby significantly improving the service life of the mold and reducing the maintenance and replacement costs of the mold. At the same time, it also effectively buffers the impact force and reduces the vibration generated by the mold during stamping that is transmitted to other parts of the equipment. At the same time, it also reduces the noise generated by the impact, improves the working environment, and is beneficial to the physical and mental health of the operator and the normal operation of other precision instruments around the equipment.

[0039] Furthermore, linear guide rails 17 are fixedly provided on both sides of the top of the lower module 3, and movable blocks 18 are slidably provided on the front and rear sides of the tops of the two linear guide rails 17, and positioning frames 19 are fixedly provided between the two movable blocks 18 on the front side and between the two movable blocks 18 on the rear side, and two positioning plates 20 are slidably provided on the opposite sides of the two positioning frames 19 through micro sliders;

[0040] It should be noted that when performing the stamping process of the prototype plate of automobile parts, the automobile parts are placed on the top of the lower module 3 by a robot, and two linear slide rails 17 are used to control the two positioning frames 19 to slide relative to each other. The front and rear sides of the prototype plate are positioned and clamped by the two positioning frames 19, and the four sides of the prototype plate are positioned and clamped by the two positioning plates 20 on the front and rear sides, ensuring that the stamping area of ​​the prototype plate is located directly above the stamping cavity 7. There is no need for manual stamping positioning, which greatly improves the stamping processing efficiency of automobile parts.

[0041] Specifically, the stamping auxiliary component includes an adjusting frame 12, a fixing frame 9 is fixedly provided on all sides of the inside of the stamping cavity 7 by a bolt group, and a micro-electric cylinder 10 is fixedly provided on all sides of the inside of the four fixing frames 9, a supporting frame 11 is movably provided on one side of the four fixing frames 9, and the driving ends of the four micro-electric cylinders 10 in each fixing frame 9 are fixedly connected to the four sides of the supporting frame 11 on one side, and an adjusting frame 12 is rotatably provided on all sides of the bottom of the stamping cavity 7, and one side of the four adjusting frames 12 is respectively in contact with one side of the four supporting frames 11; wherein the bottoms of the four adjusting frames 12 can only be flipped to one side of the four supporting frames 11.

[0042] Furthermore, a plurality of ejection grooves 15 are provided at the bottom of the stamping cavity 7, and ejection rods 16 are slidably provided inside the plurality of ejection grooves 15, and the bottom ends of the plurality of ejection rods 16 are driven to slide up and down by a servo electric cylinder provided at the lower part of the lower module 3.

[0043] It should be noted that when performing the stamping process of automobile parts, after the automobile parts are stamped and formed inside the stamping cavity 7, the driving end of the micro-electric cylinder 10 inside the four fixing frames 9 drives the four adjusting frames 12 to move to one side of the four fixing frames 9, thereby releasing the supporting force of the four supporting frames 11 on the back of the four adjusting frames 12. At this time, the four adjusting frames 12 can be flipped to one side of the four supporting frames 11, so that the four adjusting frames 12 that originally fit the outer peripheral surface of the automobile parts can be automatically detached, so that the automobile parts can be freed from the restricting force on all sides inside the stamping cavity 7, and the automobile parts are ejected by cooperating with several ejecting rods 16 at the bottom of the stamping cavity 7, so as to quickly complete the stamping and demoulding process of the automobile parts, and in the demoulding process, no friction will be generated on the outer peripheral surface of the automobile parts, thereby ensuring the stamping forming accuracy of the automobile parts to a great extent.

[0044] In a specific embodiment, the present invention drives the support frame 11 to move through the micro-electric cylinders 10 on the four fixing frames 9, thereby controlling the flipping action of the adjustment frame 12. When the adjustment frame 12 flips toward the side of the support frame 11, the adjustment frame 12 that originally fits the outer peripheral surface of the automobile part can be automatically detached, and no friction force is generated on the outer peripheral surface of the automobile part during this process, thereby avoiding scratches, wear or dimensional deviation caused by friction between the mold and the part surface in the traditional demoulding method, greatly ensuring the stamping precision of the automobile parts, and improving the quality and qualified rate of the products;

[0045] After the regulating frame 12 releases the limiting force on the outer peripheral surface of the automobile parts, the ejector rod 16 moves upward under the drive of the servo electric cylinder, and can provide stable and sufficient demoulding force for the automobile parts from the bottom. This bottom ejection method cooperates with the side demoulding action of the regulating frame 12 to form an all-round demoulding assistance system, so that the automobile parts can be quickly and smoothly ejected from the stamping cavity 7, effectively improving the demoulding efficiency, reducing the demoulding time, and improving the production cycle. In addition, the number and distribution of the ejector rods 16 can be designed and adjusted according to the shape of the stamping cavity 7 and the structure of the automobile parts. For parts with complex shapes, special structures at the bottom or different wall thickness distributions, the ejector rods 16 can be reasonably arranged to evenly apply demoulding force during the demoulding process, thereby avoiding demoulding difficulties or damage to parts due to local uneven force, thereby improving the adaptability and versatility of the mold to different types of automobile parts.

[0046] Therefore, by setting the specific structure of the stamping auxiliary component inside the stamping cavity 7, while ensuring the stamping accuracy of automobile parts, an efficient, precise and frictionless demolding process is achieved, thereby improving the overall performance and production efficiency of the mold, which is of great significance and value to the stamping production of automobile parts.

[0047] Embodiment 2:

[0048] Specifically, the demoulding auxiliary component includes a fixed stripping slider 21 and a movable stripping slider 23, the four peripheral surfaces of the upper module 6 are fixedly provided with a linear slide rail 24, one side of the linear slide rail 24 located on the left and right sides of the upper module 6 is slidably provided with a fixed stripping slider 21, one side of the linear slide rail 24 located on the front and rear sides of the upper module 6 is slidably provided with a rotating connecting block 22, and the bottom of the two rotating connecting blocks 22 is rotatably provided with a movable stripping slider 23, and one side of the two fixed stripping sliders 21 and the two movable stripping sliders 23 are in contact with the four peripheral surfaces of the upper module 6;

[0049] Furthermore, two micro electric cylinders 25 are fixedly disposed inside the upper module 6, and a ejector plate 26 is fixedly disposed at the bottom ends of the driving shafts of the two micro electric cylinders 25;

[0050] Furthermore, the bottom of the stamping cavity 7 and the top plate 26 are both provided with end cooling channels 14, the two fixed stripping slides 21, the movable stripping slide 23 and the four adjustment frames 12 are both provided with side cooling channels 13, the lower module 3 and the top of the upper die seat 4 are both provided with cooling circulation pumps 27, and the output and input ends of the upper and lower cooling circulation pumps 27 are respectively connected through the circulation duct and the side cooling channels 13 and the end cooling channels 14. During the stamping process, the mold will generate a large amount of heat due to the plastic deformation of the metal material. If the heat cannot be dissipated in time, the mold temperature will be too high, causing thermal fatigue of the mold material, hardness reduction and other problems, thereby shortening the mold life. The setting of the cooling channel can make the coolant circulate inside the mold, take away the heat, control the mold temperature within a reasonable range, effectively reduce the damage to the mold caused by thermal stress, extend the service life of the mold, and reduce the cost of mold maintenance and replacement.

[0051] It should be noted that after the stamping and forming of automobile parts is completed, the driving end of the hydraulic cylinder 8 is used to control the lifting plate 5 to lift upward. At this time, the linear slide rails 24 around the upper module 6 respectively control the fixed stripping slider 21 and the rotating connecting block 22 to slide downward along the surface of the upper module 6, and the two fixed stripping sliders 21 and the movable stripping sliders 23 at the bottom of the two rotating connecting blocks 22 are used to hold the four sides of the inside of the stamping part against the limit, so that the bottom of the upper module 6 and the bottom surface of the inside of the stamping part are separated, and then the four adjustment racks in the stamping auxiliary assembly are controlled. 12 flips outward, cooperates with the ejector rod 16 to eject the stamped parts inside the stamping cavity 7 as the lifting plate 5 is lifted, until the stamped parts are completely ejected from the inside of the stamping cavity 7, at this time, the movable stripping slider 23 at the bottom of the two rotating connecting blocks 22 flips inward, and at the same time, the driving end of the micro-electric cylinder 25 controls the ejection plate 26 to move downward, and the ejection plate 26 is used to push the stamped parts downward, and cooperates with the linear slide rail 24 to control the fixed stripping slider 21 and the movable stripping slider 23 to move upward, completing the rapid demolding operation of the stamped parts of automobile parts.

[0052] In a specific embodiment, in the initial stage of demoulding, when the lifting plate 5 is lifted upward, the fixed demoulding slider 21 and the movable demoulding slider 23 slide downward along the linear slide rail 24 to limit the surrounding of the inside of the stamping part, which can effectively prevent the stamping part from shaking or deflecting due to the separation of the upper module 6 during the demoulding process, ensure the stability and accuracy of the demoulding process, and help maintain the shape accuracy of the stamping part. At the same time, through this limiting method, the bottom of the upper module 6 can be smoothly separated from the bottom surface of the inside of the stamping part, creating good conditions for the subsequent demoulding steps;

[0053] In addition, the movable stripping slider 23 is connected to the linear slide rail 24 through the rotating connecting block 22 and can rotate. This design enables it to better adapt to the demoulding requirements of automobile parts with different shapes. For stamping parts with irregular internal contours, the movable stripping slider 23 can adjust the angle according to the actual shape to ensure that it fits tightly with the stamping parts during the demoulding process without interference, thereby improving the demoulding ability of the mold for parts with complex shapes.

[0054] After the stamped part is ejected out of the stamping cavity 7, the micro-electric cylinder 25 drives the ejector plate 26 to move downward to apply a downward thrust to the stamped part, forming a demoulding force system that cooperates with the upward ejection force of the ejector rod 16. The collaborative demoulding forces in the up and down directions can more flexibly handle the demoulding conditions of different types of automotive parts. For some parts with special structures or large adsorption forces at the bottom, the demoulding resistance can be more effectively overcome by adjusting the thrust of the micro-electric cylinder 25 and the stroke of the ejector plate 26 to ensure smooth demoulding of the parts. The downward pushing action of the ejector plate 26 can prevent the stamped part from being stuck in the mold due to residual adsorption or friction at the top in the later stage of demoulding, thereby ensuring that the stamped part can be completely separated from the mold, thereby improving the integrity and success rate of demoulding, reducing the scrap rate caused by incomplete demoulding, and improving production efficiency and product quality.

[0055] Embodiment 3:

[0056] Specifically, this embodiment also discloses a working method of a rapid demoulding die for stamping automobile parts, comprising the following steps:

[0057] S1. Place the automobile parts on the top of the lower module 3 by a manipulator, and use two linear slide rails 17 to control the two positioning frames 19 to slide relative to each other. The two positioning frames 19 are used to position and clamp the front and rear sides of the prototype plate. At the same time, the two positioning plates 20 on the front and rear sides are used to position and clamp the four sides of the prototype plate to ensure that the stamping area of ​​the prototype plate is located directly above the stamping cavity 7.

[0058] S2, the lifting plate 5 is controlled to move downward by the driving end of the hydraulic cylinder 8, the stamping prototype plate of the automobile parts is stamped downward, and the stamping forming process of the automobile parts is completed inside the stamping cavity 7;

[0059] S3. After completing the stamping process of automobile parts, the driving end of the hydraulic cylinder 8 is used to control the lifting plate 5 to lift upward. At this time, the linear slide rails 24 around the upper module 6 respectively control the fixed stripping slider 21 and the rotating connecting block 22 to slide downward along the surface of the upper module 6. The two fixed stripping sliders 21 and the movable stripping sliders 23 at the bottom of the two rotating connecting blocks 22 are used to stop the four sides of the inside of the stamping part, so that the bottom of the upper module 6 and the bottom surface of the inside of the stamping part are separated, and then the four adjustment frames 12 in the stamping auxiliary assembly are controlled. It flips outward and cooperates with the ejection rod 16 to eject the stamped parts inside the stamping cavity 7 as the lifting plate 5 is lifted, until the stamped parts are completely ejected from the inside of the stamping cavity 7. At this time, the movable stripping slider 23 at the bottom of the two rotating connecting blocks 22 flips inward, and at the same time, the driving end of the micro-electric cylinder 25 controls the ejection plate 26 to move downward, and the ejection plate 26 is used to push the stamped parts downward, and the linear slide rail 24 controls the fixed stripping slider 21 and the movable stripping slider 23 to move upward, completing the rapid demolding operation of the stamped parts of automotive parts.

[0060] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0061] It should be noted that, in this article, relational terms such as first and second, etc. 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 terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick demoulding die for stamping automobile parts, comprising a lower die base (1) and an upper die base (4) located directly above the lower die base (1), wherein the top of the lower die base (1) is fixedly provided with fixing columns (28) on all sides, and the top ends of the four fixing columns (28) are respectively fixedly connected to the bottom of the upper die base (4) on all sides, characterized in that: A backing plate (2) is fixedly arranged on the top of the lower die base (1), and a lower module (3) is fixedly arranged on the top of the backing plate (2) via a bolt group, a stamping cavity (7) is arranged inside the lower module (3), and a stamping auxiliary component is arranged inside the stamping cavity (7); The stamping auxiliary component comprises an adjustment frame (12), a fixing frame (9) is fixedly arranged on all four sides of the inside of the stamping cavity (7) by means of a bolt group, and a micro-electric cylinder (10) is fixedly arranged on all four sides of the inside of the four fixing frames (9), a support frame (11) is movably arranged on one side of the four fixing frames (9), and the driving ends of the four micro-electric cylinders (10) in each fixing frame (9) are fixedly connected to all four sides of the support frame (11) on one side, and an adjustment frame (12) is rotatably arranged on all four sides of the bottom of the stamping cavity (7), and one side of the four adjustment frames (12) is respectively in close contact with one side of the four support frames (11); A lifting plate (5) is movably provided at the bottom of the upper die base (4), and an upper die block (6) is fixedly provided at the bottom of the lifting plate (5); a hydraulic cylinder (8) is fixedly provided at the top of the upper die base (4), and a driving end of the hydraulic cylinder (8) extends to the bottom of the upper die base (4), and the bottom end of the driving end of the hydraulic cylinder (8) is fixedly connected to the top of the lifting plate (5); and a demoulding auxiliary component is provided on the surface of the upper die block (6).

2. The rapid demoulding die for stamping automobile parts according to claim 1, characterized in that: Positioning slide bars (29) are slidably arranged around the interior of the upper die seat (4), and the bottom ends of the four positioning slide bars (29) are fixedly connected to the top of the lifting plate (5).

3. The rapid demoulding die for stamping automobile parts according to claim 1, characterized in that: Fixed sleeves (30) are fixedly arranged around the top of the lower module (3), and buffer springs are fixedly arranged inside the four fixed sleeves (30). Buffer connecting columns (31) are fixedly arranged around the bottom of the lifting plate (5), and the bottom ends of the four buffer connecting columns (31) are slidably connected to the inside of the four fixed sleeves (30) respectively.

4. The rapid demoulding die for stamping automobile parts according to claim 1, characterized in that: The bottom of the stamping cavity (7) is also provided with a plurality of ejecting grooves (15), and ejecting rods (16) are slidably arranged inside the plurality of ejecting grooves (15), and the bottom ends of the plurality of ejecting rods (16) are driven to slide up and down by a servo electric cylinder arranged at the bottom of the lower module (3).

5. The rapid demoulding die for stamping automobile parts according to claim 1, characterized in that: The demoulding auxiliary component comprises a fixed demoulding slider (21) and a movable demoulding slider (23); the four peripheral surfaces of the upper module (6) are fixedly provided with two linear slide rails (24); one side of the two linear slide rails (24) located on the left and right sides of the upper module (6) is slidably provided with a fixed demoulding slider (21); one side of the two linear slide rails (24) located on the front and rear sides of the upper module (6) is slidably provided with a rotating connecting block (22); and the bottom of the two rotating connecting blocks (22) is rotatably provided with a movable demoulding slider (23); one side of the two fixed demoulding sliders (21) and the two movable demoulding sliders (23) are in contact with the four peripheral surfaces of the upper module (6).

6. A rapid demoulding die for stamping automobile parts according to claim 5, characterized in that: Two micro electric cylinders (25) are fixedly arranged inside the upper module (6), and a ejector plate (26) is fixedly arranged at the bottom ends of the driving shafts of the two micro electric cylinders (25).

7. A rapid demoulding die for stamping automobile parts according to claim 6, characterized in that: The bottom of the stamping cavity (7) and the top plate (26) are both provided with end face cooling channels (14), the two fixed stripping slides (21), the movable stripping slide (23) and the four adjustment frames (12) are both provided with side cooling channels (13), the lower die block (3) and the top of the upper die base (4) are both provided with cooling circulation pumps (27), and the input and output ends of the upper and lower cooling circulation pumps (27) are respectively connected through a circulation duct and the inside of the side cooling channel (13) and the end face cooling channel (14).

8. The rapid demoulding die for stamping automobile parts according to claim 1, characterized in that: Linear slide rails (17) are fixedly arranged on both sides of the top of the lower module (3), and movable blocks (18) are slidably arranged on the front and rear sides of the tops of the two linear slide rails (17), and positioning frames (19) are fixedly arranged between the two movable blocks (18) located on the front side and between the two movable blocks (18) located on the rear side, and two positioning plates (20) are slidably arranged on the opposite sides of the two positioning frames (19) via micro sliders.

Images