An automatic press forming machine

Abstract

The application relates to an automatic stamping forming machine, and belongs to the technical field of stamping forming, which comprises a workbench, a supporting frame fixedly connected to the top of the workbench, a fixed table fixedly connected to the upper surface of the workbench, a lower pressing plate arranged on the top of the fixed table, a blanking assembly arranged between the lower pressing plate and the front surface of the workbench, and two feeding tables fixedly connected to the upper surface of the fixed table. The automatic stamping forming machine is linked with the lower pressing plate through a hinged piece and a connecting rod, when the lower pressing plate is downwardly pressed by a hydraulic cylinder, the blanking tray can be driven to rotate downwardly through the connecting rod to avoid interference with the stamping action; after stamping is completed, the lower pressing plate is upwardly reset, the connecting rod drives the blanking tray to rotate upwardly to below the stamping station, automatic receiving and blanking of finished products are realized, the structure drives blanking through reciprocating action of stamping, an independent blanking driving device does not need to be additionally arranged, the equipment structure is simplified, and manufacturing cost and failure probability are reduced.

Description

Technical Field

[0001] This invention relates to the field of stamping forming technology, specifically to an automatic stamping forming machine. Background Technology

[0002] Stamping is a processing method that uses a press and dies to apply external force to sheet metal, strip, or other blanks, causing them to undergo plastic deformation to obtain workpieces of the desired shape and size. It is widely used in various industries such as automobiles, home appliances, and instrumentation, and is an indispensable processing technology in industrial production. With the development of industrial automation, the market has placed higher demands on the automation level, processing efficiency, ease of die replacement, and feeding and unloading stability of stamping equipment.

[0003] Chinese invention patent CN107745027A discloses an automatic stamping forming machine, comprising: a base, side panels, stamping components, a stamping table, guide rails, a second drive component, and a controller. Multiple side panels are disposed on the base and together with the base form a processing area. The stamping components are disposed on the side panels located at the top of the processing area. The stamping components include a first drive component and a punch, which is driven by the drive component. The stamping table includes a stamping seat and a die for placing the part to be stamped. The die is disposed on the stamping seat. The controller can control the second drive component to move the stamping table along the guide rail to the processing area and control the punch to stamp the part to be stamped. After stamping, the controller controls the second drive component to move the stamping table out of the processing area. This invention, by automating processing in a closed processing area, allows parts to be stamped in a specific environment, better meeting the stamping forming needs of different parts.

[0004] However, in the process of using this invention, the unloading process often uses an independent drive device to transport the finished product, which not only increases the structural complexity and manufacturing cost of the equipment, but also easily leads to drive coordination failures, affecting the continuity of unloading. Therefore, an automatic stamping forming machine is proposed to solve the problems mentioned above. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an automatic stamping forming machine, which has advantages and solves the problem that the use of independent drive devices to transport finished products in the material feeding stage not only increases the structural complexity and manufacturing cost of the equipment, but also easily leads to drive coordination failures, affecting the continuity of material feeding.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic stamping forming machine, comprising a worktable and a support frame fixedly connected to the top of the worktable, a fixed platform fixedly connected to the upper surface of the worktable, a lower pressure plate provided on the top of the fixed platform, a feeding assembly provided between the lower pressure plate and the front of the worktable, two feeding platforms fixedly connected to the upper surface of the fixed platform, a stamping die provided between the two feeding platforms, and a quick-release assembly for disassembling and assembling the stamping die provided inside the feeding platform; The unloading assembly includes a support rod fixedly connected to the top of the workbench, an unloading tray disposed on one side of the support rod, a first connecting rod rotatably connected to the side of the support rod near the unloading tray, a second connecting rod rotatably connected between the unloading tray and the first connecting rod, a hinge fixedly connected to the front of the lower pressure plate, and a third connecting rod rotatably connected between the hinge and the second connecting rod. The quick-release assembly includes a movable rod slidably connected inside the feeding platform, a fixed plate fixedly connected inside the feeding platform, a baffle fixedly connected outside the movable rod, a return spring fixedly connected between the baffle and the inner wall of the feeding platform, and a locking block fixedly connected to one end of the movable rod.

[0007] Furthermore, there are two second connecting rods, each of which is rotatably connected to both ends of the first connecting rod, and the third connecting rod is rotatably connected to the second connecting rod near the lower pressure plate.

[0008] Furthermore, the support rod is L-shaped, and the support rod is rotatably connected to the center position of the first connecting rod.

[0009] Furthermore, the end of the movable rod away from the locking block extends to the front of the feeding table, and a handle is fixedly connected to the end of the movable rod away from the locking block.

[0010] Furthermore, the reset spring is sleeved on the outer surface of the movable rod, and the locking block extends to the outside of the feeding table.

[0011] Furthermore, the stamping die includes a lower die slidably connected to the upper surface of a fixed platform, an upper die disposed on the top of the lower die, a positioning rod fixedly connected to the top of the lower die, and a buffer spring fixedly connected between the lower die and the upper die.

[0012] Furthermore, there are four positioning rods and four buffer springs. The buffer springs are sleeved on the outside of the positioning rods. The positioning rods pass through the upper mold and are slidably connected to it. A buffer pad is fixedly connected to the upper surface of the upper mold. The lower mold has slots on both the left and right sides that are adapted to the locking blocks.

[0013] Furthermore, two linear guide rails are fixedly connected to the upper surface of the fixed platform, and a slide seat adapted to the linear guide rails is fixedly connected to the bottom of the lower mold.

[0014] Furthermore, two elastic limiting plates are slidably connected on the feeding platform, and a support spring is fixedly connected between the elastic limiting plates and the feeding platform. A feeding groove is opened on the top of the feeding platform, and the elastic limiting plates and the support spring are both located in the feeding groove. An inclined panel adapted to the feeding platform is fixedly connected to the top of the workbench.

[0015] Furthermore, a hydraulic cylinder extending to the bottom of the support frame is fixedly connected to the top of the support frame, and a mounting base is fixedly connected to the output end of the hydraulic cylinder. The lower pressure plate is fixedly connected to the bottom of the mounting base, and a guide rod is fixedly connected between the support frame and the worktable. The mounting base and the guide rod are slidably connected.

[0016] Compared with the prior art, the present invention provides an automatic stamping forming machine, which has the following beneficial effects: 1. This automatic stamping forming machine is linked with the lower pressure plate through a hinge, a third connecting rod, and a third connecting rod. When the lower pressure plate is pressed downward with the hydraulic cylinder, the third connecting rod can drive the unloading tray to rotate downward, avoiding interference with the stamping action. After stamping is completed, the lower pressure plate returns to its original position, and the third connecting rod drives the unloading tray to rotate upward to below the stamping station, realizing automatic receiving and unloading of the finished product. This structure uses the reciprocating motion of stamping to drive unloading, eliminating the need for an additional unloading drive device, simplifying the equipment structure, reducing manufacturing costs and the probability of failure, and realizing automated linkage between stamping and unloading, improving the continuity of the processing and overall efficiency.

[0017] 2. This automatic stamping forming machine allows for quick mold disassembly by pulling the handle to slide the movable rod, causing the locking block to disengage from the slot of the lower mold. After releasing the handle, the return spring automatically resets the locking block and locks it back into the slot, completing the rapid fixation of the mold. The entire disassembly and assembly process requires no professional tools, is simple to operate, and is quick, solving the problem of cumbersome mold disassembly and assembly in existing equipment. With the positioning rod and linear guide rail of the stamping mold, the positioning accuracy during mold installation is higher, effectively ensuring stamping consistency. It can quickly adapt to the stamping requirements of different specifications of blanks, improving the flexibility and adaptability of the equipment.

[0018] 3. This automatic stamping forming machine is equipped with an elastic limiting plate and a support spring in the feeding groove of the feeding table. The elastic limiting plate can adaptively clamp according to the width of the blank, which plays a bidirectional limiting role for the blank and avoids deviation or skew during the blank transportation process. At the same time, the inclined plate on the top of the worktable provides guidance for the blank transportation, so that the blank can accurately enter the stamping station. It can adapt to the feeding of blanks of different widths, and the feeding positioning accuracy is greatly improved, which effectively solves the problem of low stamping accuracy and high defect rate caused by feeding deviation in existing equipment. Attached Figure Description

[0019] Figure 1 This is a perspective view of an automatic stamping forming machine according to the present invention; Figure 2 This is a perspective view of the blanking component of an automatic stamping forming machine according to the present invention; Figure 3 This is a perspective view of the fixed platform of an automatic stamping forming machine according to the present invention; Figure 4 This is a perspective view of a quick-release assembly of an automatic stamping forming machine according to the present invention; Figure 5 This is a perspective view of a stamping die for an automatic stamping forming machine according to the present invention; Figure 6 This is a perspective view of the mounting base of an automatic stamping forming machine according to the present invention.

[0020] In the diagram: 1. Workbench; 2. Support frame; 3. Fixed platform; 4. Lower pressure plate; 5. Unloading assembly; 501. Support rod; 502. Unloading tray; 503. First connecting rod; 504. Second connecting rod; 505. Third connecting rod; 506. Hinge; 6. Stamping die; 601. Lower die; 602. Upper die; 603. Positioning rod; 604. Buffer spring; 605. Buffer pad; 7. Feeding platform; 8. Quick release assembly; 801. Movable rod; 802. Fixed plate; 803. Baffle; 804. Return spring; 805. Locking block; 806. Handle; 9. Slot; 10. Elastic limit plate; 11. Support spring; 12. Slanted panel; 13. Hydraulic cylinder; 14. Mounting base; 15. Guide rod. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1 and Figure 2An automatic stamping forming machine in this embodiment includes a worktable 1 and a support frame 2 fixedly connected to the top of the worktable 1. A fixed platform 3 is fixedly connected to the upper surface of the worktable 1. A lower pressure plate 4 is provided on the top of the fixed platform 3. A feeding assembly 5 is provided between the lower pressure plate 4 and the front of the worktable 1. The feeding assembly 5 includes a support rod 501 fixedly connected to the top of the worktable 1, a feeding tray 502 provided on one side of the support rod 501, a first connecting rod 503 rotatably connected to the side of the support rod 501 near the feeding tray 502, a second connecting rod 504 rotatably connected between the feeding tray 502 and the first connecting rod 503, a hinge 506 fixedly connected to the front of the lower pressure plate 4, and a third connecting rod 505 rotatably connected between the hinge 506 and the second connecting rod 504.

[0023] Specifically, there are two second connecting rods 504, which are rotatably connected to both ends of the first connecting rod 503 respectively. The third connecting rod 505 is rotatably connected to the second connecting rod 504 near the lower pressure plate 4. The support rod 501 is L-shaped and is rotatably connected to the center of the first connecting rod 503.

[0024] It should be noted that the unloading assembly 5 adopts a lever linkage structure with no additional drive source. Its movement is completely synchronized with the stamping reciprocating motion of the lower pressure plate 4. When the lower pressure plate 4 presses down, the hinge 506 moves down accordingly, pulling the second connecting rod 504 through the third connecting rod 505, which in turn drives the first connecting rod 503 to rotate clockwise around the pivot of the support rod 501. This causes the unloading tray 502 to deflect downward to the outside of the stamping station, achieving stamping avoidance. When the lower pressure plate 4 returns to its original position, the hinge 506 moves up synchronously, pushing the second connecting rod 504 to drive the first connecting rod 503 to rotate counterclockwise. The unloading tray 502 is then lifted up to directly below the stamping station, accurately receiving the stamped workpiece.

[0025] Please see Figure 1 and Figure 4 In this embodiment, two feeding platforms 7 are fixedly connected to the upper surface of the fixed platform 3. A stamping die 6 is provided between the two feeding platforms 7. The inside of the feeding platform 7 is provided with a quick-release assembly 8 that can disassemble and assemble the stamping die 6. The quick-release assembly 8 includes a movable rod 801 slidably connected inside the feeding platform 7, a fixed plate 802 fixedly connected inside the feeding platform 7, a baffle 803 fixedly connected outside the movable rod 801, a return spring 804 fixedly connected between the baffle 803 and the inner wall of the feeding platform 7, and a locking block 805 fixedly connected to one end of the movable rod 801.

[0026] Specifically, the end of the movable rod 801 away from the locking block 805 extends to the front of the feeding table 7. A handle 806 is fixedly connected to the end of the movable rod 801 away from the locking block 805. A return spring 804 is sleeved on the outer surface of the movable rod 801. The locking block 805 extends to the outside of the feeding table 7. The return spring 804 is a stainless steel fatigue-resistant spring. In its natural state, it is in a slightly tense state and continuously applies a pushing force to the baffle 803. The end of the locking block 805 away from the movable rod 801 extends to the outside of the feeding table 7. The engaging end of the locking block 805 has a wedge-shaped structure, which facilitates quick engagement into the slot 9 and forms an anti-loosening lock.

[0027] It should be noted that both feeding tables 7 are equipped with quick-release components 8, which can realize the synchronous installation of both sides of the stamping die 6. During disassembly and assembly, the operator only needs to pull the handle 806 to drive the movable rod 801 to slide, so that the locking block 805 disengages from the slot 9 to complete the unlocking. After releasing the handle 806, the rebound force of the return spring 804 can push the baffle 803 to drive the movable rod 801 and the locking block 805 to automatically reset. The wedge-shaped end of the locking block 805 can automatically lock into the slot 9 and achieve self-locking. The whole process does not require professional tools and can be operated by a single person, which greatly shortens the mold change time and improves the adaptability of the equipment.

[0028] Please see Figure 1 and Figure 5 In this embodiment, the stamping die 6 includes a lower die 601 slidably connected to the upper surface of the fixed platform 3, an upper die 602 disposed on the top of the lower die 601, a positioning rod 603 fixedly connected to the top of the lower die 601, and a buffer spring 604 fixedly connected between the lower die 601 and the upper die 602. There are four positioning rods 603 and four buffer springs 604. The buffer springs 604 are sleeved around the positioning rods 603. The positioning rods 603 pass through the upper die 602 and are slidably connected to it. A buffer pad 605 is fixedly connected to the upper surface of the upper die 602. The lower die 601 has slots 9 on both its left and right sides that are compatible with the locking blocks 805.

[0029] Specifically, two linear guide rails are fixedly connected to the upper surface of the fixed platform 3, a slide adapted to the linear guide rails is fixedly connected to the bottom of the lower mold 601, and the lower pressure plate 4 is located directly above the upper mold 602.

[0030] It should be noted that the bottom of the lower die 601 is fixed with a slide block adapted to the linear guide rail by bolts. A ball block is provided between the slide block and the linear guide rail to reduce sliding friction. The buffer spring 604 can absorb part of the impact force during the stamping process, avoid hard contact between the upper die 602 and the lower die 601, and extend the service life of the die. The buffer pad 605 on the upper die 602 is made of high elastic polyurethane material, which can not only buffer the stamping impact force of the lower pressure plate 4, but also prevent the contact wear between the lower pressure plate 4 and the upper die 602, and at the same time avoid local crushing of the blank due to excessive pressure during stamping.

[0031] Please see Figure 1 and Figure 3 In this embodiment, two elastic limiting plates 10 are slidably connected on the feeding table 7. A support spring 11 is fixedly connected between the elastic limiting plate 10 and the feeding table 7. A feeding groove is opened on the top of the feeding table 7. The elastic limiting plate 10 and the support spring 11 are both located in the feeding groove. An inclined plate 12 adapted to the feeding table 7 is fixedly connected to the top of the workbench 1.

[0032] Specifically, the left feeding platform 7 is for feeding, and the right feeding platform 7 is for discharging. The right feeding platform 7 can guide the waste generated after stamping to discharge, and the two feeding platforms 7 have the same structural shape.

[0033] It should be noted that after the billet enters the feeding trough through the inclined plate 12, the elastic limiting plates 10 on both sides adaptively clamp the billet and achieve automatic centering under the action of the support spring 11, effectively preventing the billet from shifting left and right during the feeding process, ensuring that the billet accurately enters the stamping station, and improving the dimensional accuracy of the stamped parts; at the same time, the elastic limiting structure can be adapted to the feeding of billets of different widths without additional adjustment, improving the versatility of the equipment.

[0034] Please see Figure 1 and Figure 5 In this embodiment, a hydraulic cylinder 13 extending to the bottom of the support frame 2 is fixedly connected to the top of the support frame 2. A mounting base 14 is fixedly connected to the output end of the hydraulic cylinder 13. A lower pressure plate 4 is fixedly connected to the bottom of the mounting base 14. A guide rod 15 is fixedly connected between the support frame 2 and the workbench 1. The mounting base 14 is slidably connected to the guide rod 15. A guide hole adapted to the guide rod 15 is opened on the mounting base 14. A self-lubricating copper sleeve is embedded in the guide hole. The mounting base 14 is slidably connected to the guide rod 15 through the self-lubricating copper sleeve.

[0035] Specifically, the hydraulic cylinder 13 is a servo hydraulic cylinder, whose stamping stroke and stamping pressure can be precisely preset and steplessly adjusted by an external control system to adapt to the stamping requirements of blanks of different thicknesses and materials; the guide rod 15 is a light shaft made of 45 steel with heat treatment and chrome plating for rust prevention. The self-lubricating copper sleeve is graphite inlaid, which does not require additional lubrication and reduces the sliding friction between the mounting seat 14 and the guide rod 15.

[0036] It should be noted that the four guide rods 15 are configured to provide precise vertical guidance for the up-and-down movement of the mounting base 14 and the lower pressure plate 4, effectively preventing the lower pressure plate 4 from tilting during the stamping process, ensuring the uniform transmission of stamping pressure, and avoiding increased defect rate of stamped parts and uneven wear of the mold due to uneven force on the mold.

[0037] The working principle of the above embodiments is as follows: The blank to be stamped is placed on the inclined plate 12 of the left feeding table 7. The blank slides into the feeding groove along the arc transition surface of the inclined plate 12. The elastic limiting plate 10 in the feeding groove adaptively clamps the blank and completes automatic centering under the action of the support spring 11. The blank slides smoothly into the stamping station along the limiting guide and falls accurately on the upper surface of the lower die 601, completing the feeding. The external control system starts the hydraulic cylinder 13. The output end of the hydraulic cylinder 13 pushes the mounting base 14 to move vertically downward along the guide rod 15. The mounting base 14 drives the lower pressure plate 4 to move downward synchronously. The lower pressure plate 4 first contacts the buffer pad 605 on the upper mold 602, and then pushes the upper mold 602 to slide downward along the positioning rod 603. The buffer spring 604 is compressed and absorbs part of the stamping impact force. The upper mold 602 contacts the blank downward and applies pressure, causing the blank to undergo plastic deformation and complete the stamping. During this process, the lower pressure plate 4 drives the hinge 506 to move downward. Through the linkage structure, the unloading tray 502 is deflected downward to achieve stamping avoidance. After stamping is completed, the output end of the hydraulic cylinder 13 drives the mounting base 14 and the lower pressure plate 4 to reset vertically upward along the guide rod 15. The upper mold 602 resets upward along the positioning rod 603 under the action of the rebound force of the buffer spring 604. At the same time, the hinge 506 moves upward with the lower pressure plate 4 and drives the first connecting rod 503 to rotate counterclockwise through the linkage structure. The unloading tray 502 is lifted upward to directly below the stamping station. The stamped workpiece falls into the unloading tray 502 and is automatically unloaded by the natural tilt of the unloading tray 502. The scrap generated during the stamping process slides into the feeding groove of the right feeding table 7 under the pushing and stamping force of the billet. Guided by the elastic limiting plate 10, it slides smoothly out along the right inclined plate 12, realizing the automatic discharge of scrap without manual cleaning. When different specifications of stamped parts need to be processed, the operator simultaneously pulls the handles 806 on the two feeding tables 7, causing the movable rod 801 to slide, so that the locking block 805 disengages from the slot 9 of the lower mold 601, completing the mold unlocking; then the lower mold 601 is slid outward along the linear guide rail on the fixed table 3 to remove the old mold; the new mold is slid into the stamping station along the linear guide rail, the handle 806 is released, the return spring 804 pushes the locking block 805 to automatically engage with the slot 9 of the new mold and achieve self-locking, completing the quick mold change. The entire mold change process does not require professional tools and is easy to operate.

[0038] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic stamping forming machine, comprising a worktable (1) and a support frame (2) fixedly connected to the top of the worktable (1), characterized in that: A fixed platform (3) is fixedly connected to the upper surface of the workbench (1). A lower pressure plate (4) is provided on the top of the fixed platform (3). A feeding assembly (5) is provided between the lower pressure plate (4) and the front of the workbench (1). Two feeding platforms (7) are fixedly connected to the upper surface of the fixed platform (3). A stamping die (6) is provided between the two feeding platforms (7). A quick-release assembly (8) that can disassemble and assemble the stamping die (6) is provided inside the feeding platform (7). The unloading assembly (5) includes a support rod (501) fixedly connected to the top of the workbench (1), an unloading tray (502) disposed on one side of the support rod (501), a first connecting rod (503) rotatably connected to the side of the support rod (501) near the unloading tray (502), a second connecting rod (504) rotatably connected between the unloading tray (502) and the first connecting rod (503), a hinge (506) fixedly connected to the front of the lower pressure plate (4), and a third connecting rod (505) rotatably connected between the hinge (506) and the second connecting rod (504). The quick-release assembly (8) includes a movable rod (801) slidably connected inside the feeding table (7), a fixed plate (802) fixedly connected inside the feeding table (7), a baffle (803) fixedly connected outside the movable rod (801), a return spring (804) fixedly connected between the baffle (803) and the inner wall of the feeding table (7), and a locking block (805) fixedly connected to one end of the movable rod (801).

2. The automatic stamping forming machine according to claim 1, characterized in that: There are two second connecting rods (504), and the two second connecting rods (504) are rotatably connected to the two ends of the first connecting rod (503) respectively. The third connecting rod (505) is rotatably connected to the second connecting rod (504) on the side near the lower pressure plate (4).

3. An automatic stamping forming machine according to claim 1, characterized in that: The support rod (501) is L-shaped and is rotatably connected to the center position of the first connecting rod (503).

4. An automatic stamping forming machine according to claim 1, characterized in that: The end of the movable rod (801) away from the locking block (805) extends to the front of the feeding table (7), and a handle (806) is fixedly connected to the end of the movable rod (801) away from the locking block (805).

5. An automatic stamping forming machine according to claim 1, characterized in that: The reset spring (804) is sleeved on the outer surface of the movable rod (801), and the locking block (805) extends to the outside of the feeding table (7).

6. An automatic stamping forming machine according to claim 1, characterized in that: The stamping die (6) includes a lower die (601) slidably connected to the upper surface of the fixed platform (3), an upper die (602) set on the top of the lower die (601), a positioning rod (603) fixedly connected to the top of the lower die (601), and a buffer spring (604) fixedly connected between the lower die (601) and the upper die (602).

7. An automatic stamping forming machine according to claim 6, characterized in that: The number of positioning rods (603) and buffer springs (604) are four. The buffer springs (604) are sleeved on the outside of the positioning rods (603). The positioning rods (603) pass through the upper mold (602) and are slidably connected to it. A buffer pad (605) is fixedly connected to the upper surface of the upper mold (602). The lower mold (601) has slots (9) on both the left and right sides that are adapted to the locking blocks (805).

8. An automatic stamping forming machine according to claim 6, characterized in that: Two linear guide rails are fixedly connected to the upper surface of the fixed platform (3), and a slide seat adapted to the linear guide rails is fixedly connected to the bottom of the lower mold (601).

9. An automatic stamping forming machine according to claim 1, characterized in that: Two elastic limiting plates (10) are slidably connected on the feeding table (7). A support spring (11) is fixedly connected between the elastic limiting plate (10) and the feeding table (7). A feeding groove is opened on the top of the feeding table (7). The elastic limiting plate (10) and the support spring (11) are both located in the feeding groove. A sloping panel (12) adapted to the feeding table (7) is fixedly connected to the top of the workbench (1).

10. An automatic stamping forming machine according to claim 1, characterized in that: The top of the support frame (2) is fixedly connected to a hydraulic cylinder (13) extending to its bottom. A mounting base (14) is fixedly connected to the output end of the hydraulic cylinder (13). The lower pressure plate (4) is fixedly connected to the bottom of the mounting base (14). A guide rod (15) is fixedly connected between the support frame (2) and the worktable (1). The mounting base (14) and the guide rod (15) are slidably connected.

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