A stainless steel sheet metal part hydraulic forming device

Abstract

This utility model relates to the technical field of metal sheet processing equipment, specifically disclosing a hydraulic forming equipment for stainless steel sheet metal parts. It includes a worktable with a hydraulic forming component on its top. A groove is formed in the top of the worktable, and movable placement components are arranged on both sides of the groove's inner cavity. Each movable placement component includes a lower mold, with sliders at both ends. Slides that match the sliders are formed at both ends of the groove's inner cavity. Electric telescopic rods are provided at both ends of the top of the lower mold, with clamping plates at their output ends. Precise movement of the lower mold is achieved through the cooperation of the sliders and slides in the movable placement components. The electric telescopic rods drive the clamping plates to fix the sheet metal parts, and the electric push rods push the push plate to achieve rapid mold changing. This solves the problems of low efficiency, positioning errors, and cumbersome mold changing in traditional equipment, offering advantages such as improved production efficiency, reduced downtime, enhanced positioning accuracy, and easier mold replacement.

Description

Technical Field

[0001] This application relates to the field of metal sheet processing equipment technology, and more specifically, to a hydraulic forming equipment for stainless steel sheet metal parts and its moving and placing assembly. Background Technology

[0002] In existing technologies, hydraulic forming equipment for stainless steel sheet metal parts typically employs a fixed lower die structure. This structure requires operators to directly retrieve the material from the lower die after stamping. While the technical solution proposed in CN220426455U uses a motor-driven lead screw to move the lower die, mitigating safety hazards caused by accidental hydraulic button presses, this design suffers from significant efficiency bottlenecks. Because the hydraulic system must be completely stopped and the lower die's reciprocating movement completed each time material is loaded and unloaded, a substantial amount of wasted waiting time occurs. This intermittent operation significantly reduces overall production efficiency, especially during mass production. Furthermore, the positioning accuracy of the lower die in existing equipment is heavily influenced by the lead screw transmission mechanism, leading to positioning deviations over time and affecting forming quality.

[0003] To address the aforementioned issues, existing technologies urgently need improvement. Utility Model Content

[0004] The purpose of this application is to provide a hydraulic forming equipment for stainless steel sheet metal parts and its movable placement component, which has the advantages of improving production efficiency, reducing downtime, improving positioning accuracy, and facilitating mold replacement.

[0005] This application provides a hydraulic forming equipment for stainless steel sheet metal parts, the technical solution of which is as follows:

[0006] A hydraulic forming device for stainless steel sheet metal parts includes a worktable, a hydraulic forming component on the top of the worktable, a groove on the top of the worktable, and movable placement components on both sides of the inner cavity of the groove. The movable placement components include a lower mold, with sliders at both ends of the lower mold. Slides adapted to the sliders are opened at both ends of the inner cavity of the groove. Electric telescopic rods are provided at both ends of the top of the lower mold. A clamping plate is provided at the output end of the electric telescopic rod. A push plate is fixedly connected to the bottom of the lower mold. An electric push rod is provided on the outer side of the push plate, and the outer side of the electric push rod contacts the groove.

[0007] Furthermore, this application also proposes that the hydroforming assembly includes a frame, the bottom of which is fixedly connected to the worktable, and a hydraulic cylinder is provided at the top of the frame. The output end of the hydraulic cylinder passes through and extends into the inner cavity of the frame to provide an upper mold, and the upper mold is located at the center of the top of the worktable.

[0008] Furthermore, this application also proposes that the two sides of the hydraulic cylinder are fixedly connected to the frame by a fixing bracket, and the hydraulic cylinder is located at the center of the top of the frame.

[0009] Furthermore, this application also proposes that a fixing plate is fixedly connected to the outer side of the electric push rod, and the inner cavity of the fixing plate is fixedly connected to the groove by fixing bolts.

[0010] Furthermore, this application also proposes that a limiting plate is fixedly sleeved on the surface of the electric telescopic rod, and the bottom of the limiting plate is fixedly connected to the lower mold.

[0011] Furthermore, this application also proposes that material picking grooves are provided on both sides of the inner cavity of the lower mold, and the two material picking grooves are arranged symmetrically about the lower mold.

[0012] Furthermore, this application also proposes that support columns are provided at the four corners of the bottom of the workbench, and anti-slip pads are provided at the bottom of the support columns.

[0013] As can be seen from the above, the stainless steel sheet metal hydraulic forming equipment and its moving placement component provided in this application achieve precise movement of the lower mold through the cooperation of the slider and the slide groove in the moving placement component, the electric telescopic drive clamp plate fixes the sheet metal part, and the electric push rod pushes the push plate to achieve rapid mold change. It solves the problems of low efficiency, positioning deviation and cumbersome mold change of traditional equipment, and has the advantages of improving production efficiency, reducing downtime, improving positioning accuracy and facilitating mold change. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the movable placement component structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the hydraulic forming component of this utility model.

[0018] In the diagram: 1. Workbench; 2. Support column; 3. Anti-slip mat; 4. Groove; 5. Hydraulic forming assembly; 501. Frame; 502. Hydraulic cylinder; 503. Fixing frame; 504. Upper mold; 6. Moving placement assembly; 601. Lower mold; 602. Push plate; 603. Limiting plate; 604. Slider; 605. Fixing bolt; 606. Fixing plate; 607. Electric push rod; 608. Material picking groove; 609. Clamping plate; 6010. Electric telescopic rod; 7. Slide groove. Detailed Implementation

[0019] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0020] Please see Figure 1-3 In existing technologies, stainless steel sheet metal hydraulic forming equipment typically employs a fixed lower stamping die structure. After the stamping process is completed, the operator needs to manually remove the formed part from the fixed die. To prevent accidental activation of the upper die (504) due to accidental activation of the hydraulic start button, the equipment must be completely stopped. This stop-and-remove operation mode significantly reduces processing efficiency, creating a noticeable bottleneck in mass production.

[0021] To address the aforementioned issues, researchers discovered that the processing interruptions in traditional equipment stemmed from a flaw in the linkage control of the upper and lower molds 601. Analysis revealed that if the lower mold 601 could be moved independently during the material handling phase, the upper mold 504 could remain operational and ready in a safe state. Based on this idea, the design team attempted to design the lower mold 601 as a movable structure and configured it with an independent drive system to allow it to detach from the processing area during material handling, while simultaneously maintaining the upper mold 504 in a standby state.

[0022] Therefore, this application proposes a hydraulic forming device including a worktable 1. A hydraulic forming component 5 is provided on the top of the worktable 1, and a groove 4 is formed therein. Movable placement components 6 are provided on both sides of the inner cavity of the groove 4. These components include sliders 604 at both ends of a lower mold 601, and grooves 7 that mate with the sliders 604 are formed at both ends of the groove 4. Electric telescopic rods 6010 are provided at both ends of the top of the lower mold 601 to drive clamping plates 609, and a bottom fixed push plate 602 is connected to an electric push rod 607.

[0023] The movable placement component 6 refers to a mold-bearing device that can move along the slide groove 7. Specifically, it can be implemented using a mechanical structure that combines a slide rail and a slider 604. The electric push rod 607 pushes the push plate 602 to achieve the horizontal displacement of the lower mold 601. The cooperation structure between the slider 604 and the slide groove 7 refers to a guiding device, which can be implemented using a dovetail groove or T-slot structure to ensure the trajectory accuracy of the lower mold 601 during movement. The electric telescopic rod 6010 drives the clamping plate 609, which is a workpiece clamping device. Specifically, it can be implemented using a linkage mechanism driven by a servo motor, used to fix sheet metal parts during processing. The connection structure between the push plate 602 and the electric push rod 607 refers to a power transmission device, which can be implemented using a threaded connection or a flange connection to convert the linear motion of the electric push rod 607 into the displacement of the lower mold 601.

[0024] Specifically, after the stamping process is completed, the electric push rod 607 pushes the push plate 602, causing the lower die 601 to move out of the processing area along the slide 7. At this time, the operator can safely retrieve the material outside the equipment, while the upper die 504 maintains the standby pressure of the hydraulic system. After the new workpiece is placed in the lower die 601, the electric push rod 607 moves in the opposite direction to send the die back to the processing position. The clamping plate 609 automatically clamps the workpiece via the electric telescopic rod 6010, and the hydraulic cylinder 502 then drives the upper die 504 to complete the stamping action. The hydraulic system can be operated continuously throughout the entire process without interruption, achieving continuity of the processing steps.

[0025] Compared to existing technologies, traditional equipment requires a complete shutdown of the hydraulic system to perform material handling operations. This solution, however, achieves physical isolation between the processing and operating areas through a movable lower mold 601 structure. In existing technologies, a fixed lower mold 601 restricts operating space; this solution expands the mold's range of motion through a slide 7 structure. Existing equipment relies on manual intervention for safety; this solution automatically avoids the risk of accidental contact through mechanical displacement.

[0026] Through the above technical solutions, this application achieves continuous operation of the hydraulic forming equipment without stopping the machine, effectively increasing the number of processing operations per unit time. The movable lower mold 601 structure allows the material handling operation to be completed in the non-processing area, eliminating the safety hazard of accidentally activating the hydraulic button. The cooperative design of the slide 7 and the electric push rod 607 simplifies the mold displacement control process and reduces operational complexity. The linkage mechanism between the clamping plate 609 and the telescopic rod ensures the positioning stability of the workpiece during movement, avoiding loss of processing accuracy.

[0027] This application further proposes a hydroforming assembly 5 including a frame 501. The bottom of the frame 501 is fixedly connected to the worktable 1. A hydraulic cylinder 502 is disposed on the top of the frame 501. The output end of the hydraulic cylinder 502 extends through and into the inner cavity of the frame 501 to provide an upper mold 504, which is located at the center of the top of the worktable 1. The two sides of the hydraulic cylinder 502 are fixedly connected to the frame 501 by a fixing bracket 503, and the hydraulic cylinder 502 is located at the center of the top of the frame 501.

[0028] Among them, frame 501 refers to the rigid structure that supports hydraulic cylinder 502. Specifically, it can be fixed to workbench 1 by welding or bolting. It is used to disperse the reaction force of hydraulic cylinder 502 during operation and to prevent workbench 1 from being deformed due to excessive local stress.

[0029] The fixed frame 503 refers to the reinforcing component that connects the hydraulic cylinder 502 and the frame 501. It can be made of steel plate or angle steel and is fixed to both sides of the frame 501 by welding or bolts. It is used to limit the lateral displacement of the hydraulic cylinder 502 during operation and ensure the vertical movement trajectory of the output end of the hydraulic cylinder 502 and the upper mold 504.

[0030] The center point refers to the geometrically symmetrical position of the hydraulic cylinder 502 at the top of the frame 501. Specifically, the installation point can be determined by measuring the intersection of the diagonals at the top of the frame 501, so that the pressure output by the hydraulic cylinder 502 can be evenly transmitted to the upper mold 504, avoiding uneven thickness of the molded part due to eccentric force.

[0031] Specifically, the fixed connection between frame 501 and worktable 1 forms a stable support structure. Hydraulic cylinder 502 is mounted at the center of the top of frame 501 via fixing bracket 503, and its output end vertically passes through frame 501 and connects to upper mold 504. When hydraulic cylinder 502 is activated, its output end drives upper mold 504 to move vertically, cooperating with lower mold 601 at the center of worktable 1 to complete stamping. Fixing bracket 503 constrains both sides of hydraulic cylinder 502, suppressing its lateral vibration under high pressure operation and ensuring precise alignment of upper mold 504 and lower mold 601.

[0032] Compared with the prior art, the hydraulic cylinder 502 in the prior art is directly installed in the middle of the bracket and lacks a lateral reinforcement structure. It is prone to displacement during high-pressure stamping, resulting in a decrease in mold alignment accuracy. This application uses the cooperation between the frame 501 and the fixed bracket 503 to keep the hydraulic cylinder 502 stable during operation, avoid forming defects caused by vibration or displacement, reduce the frequency of downtime for adjustment, and improve the efficiency of continuous operation.

[0033] Through the above technical solution, this application achieves stable output of the hydraulic cylinder 502, ensuring precise matching between the upper mold 504 and the lower mold 601, and improving the forming quality of stainless steel sheet metal parts. The synergistic effect of the fixing bracket 503 and the frame 501 effectively suppresses the vibration of the hydraulic cylinder 502, reduces equipment maintenance requirements, and the centrally positioned hydraulic cylinder 502 layout makes the pressure distribution more uniform, extending the service life of the mold.

[0034] This application further proposes that the two sides of the hydraulic cylinder 502 are fixedly connected to the frame 501 by a fixing bracket 503, and the hydraulic cylinder 502 is located at the center of the top of the frame 501.

[0035] Among them, the fixed frame 503 refers to the support structure used to enhance the connection stability between the hydraulic cylinder 502 and the frame 501. Specifically, it can be implemented by using an L-shaped steel plate or a welded triangular bracket, which disperses the vibration load of the hydraulic cylinder 502 during operation by fixing it at multiple points.

[0036] The center of the top of frame 501 refers to the geometric center area of ​​the top plane of frame 501. The specific installation position can be determined by positioning ruler or laser calibrator so that the axis of hydraulic cylinder 502 coincides with the axis of symmetry of frame 501, ensuring that the pressure is evenly distributed during the stamping process.

[0037] Specifically, the hydraulic cylinder 502 is rigidly connected to the frame 501 on both sides via a fixing bracket 503, which restricts the displacement of the hydraulic cylinder 502 in the vertical and horizontal directions. At the same time, the hydraulic cylinder 502 is precisely installed at the top center of the frame 501 to avoid uneven stress on the frame 501 due to offset installation. When the hydraulic cylinder 502 drives the upper die 504 to perform stamping, the fixing bracket 503 absorbs vibration energy and reduces deformation of the frame 501 by center positioning, thereby maintaining the alignment accuracy between the upper die 504 and the lower die 601.

[0038] Compared with existing technologies, hydraulic cylinders 502 in traditional hydraulic forming equipment often adopt a single-sided fixed or asymmetrical installation method, which is prone to loosening of the connection structure due to vibration, and deformation of the frame 501 caused by off-center loading. This solution significantly improves the operational stability of hydraulic cylinders 502 and eliminates the risk of mold misalignment caused by installation deviation through the dual constraints of double-sided fixed frames 503 and center positioning.

[0039] Through the above technical solution, this application solves the problems of mold alignment misalignment caused by the failure of the connection structure due to the vibration of the hydraulic cylinder 502 and the uneven force on the frame 501, ensuring that the upper mold 504 and the lower mold 601 always maintain precise fit during the stamping process, thereby improving the forming quality and processing efficiency of stainless steel sheet metal parts.

[0040] This application further proposes that the electric push rod 607 is fixedly connected to the outer side of a fixing plate 606, and the inner cavity of the fixing plate 606 is fixedly connected to the groove 4 by fixing bolts 605.

[0041] The fixing plate 606 is a load-bearing component used to connect the electric push rod 607 and the groove 4. Specifically, it can be a metal plate with a thickness of 5-8mm, which is connected by welding or bolts. Its function is to disperse the reaction force of the electric push rod 607 during operation and avoid local stress concentration that could lead to structural deformation.

[0042] Among them, the fixing bolt 605 is a fastener used to lock the fixing plate 606 and the groove 4. Specifically, it can be achieved by using M8 or M10 standard bolts with anti-loosening washers. Its function is to provide a detachable rigid connection to ensure that the electric push rod 607 maintains positional stability during repeated extension and retraction.

[0043] Specifically, the fixing plate 606 is welded or bolted to the side of the housing of the electric push rod 607, and its interior is machined with mounting holes that match the sidewall of the groove 4. During assembly, the fixing bolts 605 pass through the through holes of the fixing plate 606 and are screwed into the pre-set threaded holes on the sidewall of the groove 4, forming a bidirectional constraint. When the electric push rod 607 drives the lower mold 601 to move horizontally, the fixing plate 606, through the bolt connection, evenly transmits the load to the sidewall of the groove 4, preventing the electric push rod 607 from shifting or vibrating due to unilateral force.

[0044] Compared to existing technologies, the electric actuator 607 in existing equipment is typically directly embedded in the groove 4 without a rigid connection structure, which can easily lead to gaps and decreased positioning accuracy after long-term use. This solution uses a combined connection method of fixing plate 606 and bolts, which not only enables quick disassembly and maintenance of the electric actuator 607 and groove 4, but also effectively suppresses the cumulative displacement error during equipment operation through multi-point rigid fixation.

[0045] Through the above technical solution, this application solves the problem of loose connection of electric push rod 607 caused by vibration during continuous stamping operation, keeps the horizontal movement trajectory of lower die 601 stable, avoids the dimensional deviation of molded parts caused by push rod offset, and reduces the frequency of equipment downtime maintenance.

[0046] This application further proposes that the surface of the electric telescopic rod 6010 is fixedly fitted with a limiting plate 603, and the bottom of the limiting plate 603 is fixedly connected to the lower mold 601.

[0047] Among them, the limiting plate 603 refers to the plate-shaped structure used to limit the displacement of the electric telescopic rod 6010. Specifically, it can be achieved by welding metal plates or fixing with bolts. Its function is to enhance the stability of the electric telescopic rod 6010 through the fixed connection with the lower mold 601.

[0048] The fixed sleeve refers to the connection method between the limiting plate 603 and the electric telescopic rod 6010. Specifically, it can be achieved by using a ring clamp or a fixing ring structure to ensure that the limiting plate 603 and the surface of the electric telescopic rod 6010 are tightly fitted.

[0049] Specifically, the limiting plate 603 is fixedly sleeved on the surface of the electric telescopic rod 6010, and its bottom is fixed to the lower mold 601 by welding or bolt connection. During the hydroforming process, when the electric telescopic rod 6010 drives the clamping plate 609 to clamp the sheet metal part, the limiting plate 603 can limit the radial displacement of the electric telescopic rod 6010 caused by vibration or pressure. At the same time, the fixed connection between its bottom and the lower mold 601 forms a double constraint, avoiding positional deviation of the clamping plate 609 due to uneven force during clamping.

[0050] Compared with the prior art, the clamping mechanism of the lower mold 601 in the prior art lacks a limiting structure for the electric telescopic rod 6010, which makes it easy for displacement to occur due to vibration or pressure during the clamping process, affecting the clamping accuracy and stability. This application, by setting the limiting plate 603, constrains the force direction of the electric telescopic rod 6010, thereby improving the reliability of the clamping action.

[0051] Through the above technical solution, this application solves the problem of reduced sheet metal forming accuracy caused by the displacement of the clamping mechanism in the prior art. The double fixing structure of the limiting plate 603 ensures the stability of the clamping action, thereby improving forming efficiency and reducing the risk of repeated operations due to clamping failure.

[0052] This application further proposes that both sides of the inner cavity of the lower mold 601 are provided with material picking grooves 608, and the two material picking grooves 608 are arranged symmetrically about the lower mold 601.

[0053] The material-retrieving groove 608 refers to the recessed structure located on both sides of the inner cavity of the lower mold 601. It can be implemented using a rectangular or arc-shaped groove structure to accommodate tools or fingers, assisting in the removal of the formed sheet metal part from the mold. The centrally symmetrical arrangement means that the two material-retrieving grooves 608 are mirror-distributed along the geometric center line of the lower mold 601. This can be achieved by symmetrically slotting the material along the center line during mold processing, ensuring uniform force distribution during the material-retrieving operation.

[0054] Specifically, after hydroforming is completed, the operator can directly contact the edge area of ​​the sheet metal part through the two side pick-up slots 608, and use tools or manual force to eject the formed part from the lower mold 601. Because the pick-up slots 608 are symmetrically distributed, the force application points on both sides are balanced during operation, avoiding mold displacement or workpiece deformation due to unilateral force. Furthermore, the pick-up slots 608 are positioned to avoid the main pressure-bearing areas of the mold, ensuring that the mold's structural strength is not affected.

[0055] Compared with existing technologies, the existing lower stamping die needs to be moved as a whole to pick up the material, which makes the operation cumbersome and increases downtime. In contrast, this solution opens symmetrically distributed material picking slots 608 on the body of the lower die 601, so that the sheet metal part can be demolded directly in the original position of the die after forming, without moving the die or interrupting the operation of the equipment.

[0056] Through the above technical solution, this application solves the problem of reduced efficiency caused by mold movement in traditional hydraulic forming equipment. By optimizing the mold structure, it achieves rapid material handling while maintaining mold working stability, reducing equipment downtime, and improving continuous operation capability.

[0057] This application further proposes that support columns 2 are provided at the four corners of the bottom of the workbench 1, and anti-slip pads 3 are provided at the bottom of the support columns 2.

[0058] The support column 2 refers to the vertical load-bearing structure that supports the weight of the workbench 1. It can be implemented using a steel cylinder, and its height can be adjusted according to equipment installation requirements, for example, through a threaded connection. This structure forms a stable force-bearing system through four-point support, effectively dispersing the impact load generated during the hydraulic forming process.

[0059] The anti-slip pad 3 refers to a friction-enhancing component attached to the bottom surface of the support column 2. It can be made of rubber, for example, with staggered embossed patterns on the bottom surface. This component increases the coefficient of friction of the contact surface, preventing displacement of the equipment due to vibration during high-pressure operation.

[0060] Specifically, four support columns 2 are welded to the four corners of the bottom surface of the workbench 1, forming a rectangular support frame 501. Each support column 2 has a rubber pad with anti-slip textured patterns bolted to its bottom. When the hydraulic cylinder 502 drives the upper mold 504 to perform a stamping operation, the support column 2 transmits vertical pressure to the ground. The anti-slip pad 3 increases the contact area through deformation, while the rubber material absorbs some of the vibration energy. This structure maintains a static friction state between the support surface and the ground during equipment operation, preventing equipment slippage due to instantaneous impact.

[0061] Compared to existing technologies, most existing stamping equipment uses an integral base structure, which cannot adjust the support height according to the flatness of the ground and lacks anti-slip design. This solution, through the independently adjustable support column 2 structure, allows operators to adjust the height of each support point individually according to the ground conditions. At the same time, the anti-slip pad 3 ensures that the equipment maintains a stable posture when subjected to high-frequency vibration.

[0062] Through the above technical solution, this application effectively solves the displacement problem caused by unstable support in high-pressure forming operations of stamping equipment. By cooperating with the adjustable support structure and anti-slip components, it ensures that the equipment maintains a stable working state under complex working conditions, while reducing the risk of safety accidents caused by equipment displacement.

[0063] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A hydraulic forming equipment for stainless steel sheet metal parts, comprising a worktable (1), characterized in that: The top of the workbench (1) is provided with a hydraulic forming component (5). The top of the workbench (1) is provided with a groove (4). The two sides of the inner cavity of the groove (4) are provided with movable placement components (6). The movable placement component (6) includes a lower mold (601). The two ends of the lower mold (601) are provided with sliders (604). The two ends of the inner cavity of the groove (4) are provided with sliding grooves (7) that are adapted to the sliders (604). The two ends of the top of the lower mold (601) are provided with electric telescopic rods (6010). The output end of the electric telescopic rod (6010) is provided with a clamping plate (609). The bottom of the lower mold (601) is fixedly connected with a push plate (602). The outer side of the push plate (602) is provided with an electric push rod (607), and the outer side of the electric push rod (607) is in contact with the groove (4).

2. The stainless steel sheet metal hydraulic forming equipment according to claim 1, characterized in that: The hydraulic forming assembly (5) includes a frame (501), and the bottom of the frame (501) is fixedly connected to the workbench (1). A hydraulic cylinder (502) is provided on the top of the frame (501). The output end of the hydraulic cylinder (502) extends through and into the inner cavity of the frame (501) and is provided with an upper mold (504). The upper mold (504) is located at the center of the top of the workbench (1).

3. The stainless steel sheet metal hydraulic forming equipment according to claim 2, characterized in that: The hydraulic cylinder (502) is fixedly connected to the frame (501) on both sides by a fixing bracket (503), and the hydraulic cylinder (502) is located at the center of the top of the frame (501).

4. The stainless steel sheet metal hydraulic forming equipment according to claim 1, characterized in that: The electric push rod (607) is fixedly connected to a fixing plate (606) on its outer side, and the inner cavity of the fixing plate (606) is fixedly connected to the groove (4) by fixing bolts (605).

5. The hydraulic forming equipment for stainless steel sheet metal parts according to claim 1, characterized in that: The surface of the electric telescopic rod (6010) is fixedly fitted with a limiting plate (603), and the bottom of the limiting plate (603) is fixedly connected to the lower mold (601).

6. The hydraulic forming equipment for stainless steel sheet metal parts according to claim 1, characterized in that: The lower mold (601) has material picking slots (608) on both sides of its inner cavity, and the two material picking slots (608) are arranged symmetrically about the lower mold (601).

7. The stainless steel sheet metal hydraulic forming equipment according to claim 1, characterized in that: The workbench (1) has four support columns (2) at the bottom corners, and the bottom of the support columns (2) is provided with anti-slip pads (3).

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