A stainless steel bending equipment

Abstract

The present invention relates to the field of stamping technology, and discloses a stainless steel bending device, including a stamping table and a stamping head, wherein a stamping cavity is provided on the stamping table, and a stamping mechanism and a bullet-proof mechanism are provided on the top of the stamping head. The stamping mechanism is used to control the stamping head to apply pressure to the stainless steel plate so that it enters the stamping cavity, and to increase the force arm when applying pressure to reduce the physical energy consumption of the staff. The bullet-proof mechanism is used to apply strong pressure to the top of the stainless steel plate after the stamping mechanism is completed to prevent the stainless steel plate from rebounding. Through the hydraulic linkage pressure design of the bullet-proof mechanism, the main hydraulic cylinder is driven to compress the hydraulic oil, and then the pressure is synchronously transmitted to multiple auxiliary hydraulic cylinders through the guide pipe. The auxiliary piston rod drives the stabilizing frame to apply forced continuous pressure to the stainless steel plate, effectively suppressing the elastic rebound of the material. Through the lever-type connecting rod design of the stamping mechanism, the manpower intensity required for traditional equipment is greatly reduced while ensuring the stamping accuracy.

Description

Technical Field

[0001] The present invention relates to the field of stamping technology, and more particularly to a stainless steel bending device. Background Art

[0002] Before CNC machine tools perform assembly line processing on stainless steel plates, manual equipment is generally required to perform preliminary testing and processing on the stainless steel plates. Traditional manual stamping equipment relies on passive mold constraints when stamping the plates and is unable to actively apply continuous strong pressure at the critical point of stamping. When encountering materials with high yield strength such as stainless steel plates, rebound often occurs after stamping, affecting the quality of the stamping.

[0003] In order to solve this kind of situation, it is generally necessary to add a manual shaping process after the stamping is completed. However, the shaping process is not only time-consuming and labor-intensive, but also independent of the stamping process and insufficiently integrated, which affects the overall efficiency of the processing process. In addition, existing manual stamping and bending equipment generally adopts a single-stage lever or direct pressure structure. The operator needs to directly resist the yield strength of the material. The force load applied in a single operation exceeds the ergonomic safety threshold, which can easily cause wrist strain during mass production. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a stainless steel bending device to solve the problems existing in the above-mentioned background technology.

[0005] The present invention provides the following technical solution: a stainless steel bending device, comprising a stamping table and a stamping head, a stamping cavity being provided on the stamping table, a stamping mechanism and a bullet-proof mechanism being provided on the top of the stamping head, the stamping mechanism being used to control the stamping head to apply pressure to the stainless steel plate so that it enters the stamping cavity, and to increase the force arm when applying pressure to reduce the physical energy consumption of the staff, and the bullet-proof mechanism being used to apply strong pressure to the top of the stainless steel plate after the stamping mechanism is completed to prevent the stainless steel plate from rebounding.

[0006] The stamping mechanism includes a fixing frame, a push rod, a connecting rod assembly and a trigger assembly.

[0007] The bullet-blocking mechanism includes a stabilizing frame, a main hydraulic cylinder, a pressure-applying component, a reset component and a guide tube.

[0008] Preferably, the fixing frame is fixedly installed on the stamping table, the positioning shaft and the rotating shaft are fixedly connected to the fixing frame, and the connecting rod assembly includes connecting rod 1, connecting rod 2 and connecting rod 3, and there are two connecting rods 1 and 2.

[0009] Preferably, the top of the punching head is fixedly connected to a supporting frame, one end of connecting rod three is fixedly connected to the mounting shaft, the other end of connecting rod three is fixedly connected to the fixed shaft, one end of connecting rod one is rotatably connected to the supporting frame, the other end of connecting rod one is rotatably connected to the fixed shaft, one end of connecting rod two is rotatably connected to the fixed shaft, the other end of connecting rod two is rotatably connected to the rotating shaft, one end of the push rod is rotatably connected to the mounting shaft, the other end of the push rod is fixedly connected to a handle, and the push rod is also rotatably mounted on the surface of the positioning shaft.

[0010] Preferably, a guide rod is fixedly connected to the stamping table, and there are multiple guide rods. A bridge frame is fixedly connected to the receiving frame, and the bridge frame is sleeved on the surface of the guide rod. A compression spring is sleeved on the surface of the guide rod, and the elastic force of the compression spring drives the bridge frame to move upward along the guide rod.

[0011] Preferably, the trigger assembly includes a sliding rod, which passes through the push rod. The sliding rod and the push rod form a sliding guide cooperation along the axis direction of the sliding rod. One end of the sliding rod is fixedly connected to a pressing handle, and the other end of the sliding rod is fixedly connected to a movable frame. A roller is rotatably installed on the movable frame. An auxiliary spring is provided on the surface of the sliding rod, and the elastic force of the auxiliary spring drives the pressing handle to move in a direction away from the push rod.

[0012] Preferably, the master hydraulic cylinder is fixedly mounted on the punching head, a master piston is provided inside the master hydraulic cylinder, a sealed sliding guide fit is formed between the master piston and the master hydraulic cylinder, a master piston rod is fixedly connected to the bottom of the master piston, and the bottom end of the master piston rod passes through the bottom of the master hydraulic cylinder and extends downward.

[0013] Preferably, the bottom end of the main piston rod is fixedly connected to a trigger frame, the trigger frame is provided with an inclined guide groove, and the roller matches the guide groove.

[0014] Preferably, there are multiple pressure-applying components, which include a secondary hydraulic cylinder, which is fixedly mounted on the punching head, a secondary piston arranged inside the secondary hydraulic cylinder, a sealed sliding guide fit formed between the secondary piston and the secondary hydraulic cylinder, a secondary piston rod fixedly connected to the bottom of the secondary piston, the bottom end of the secondary piston rod passes through the bottom of the secondary hydraulic cylinder and extends downward, and the bottom end of the secondary piston rod is fixedly connected to the stabilizing frame.

[0015] Preferably, the input end of the guide tube is fixedly connected to the top of the main hydraulic cylinder, and a plurality of corresponding pressure components are provided at the output end of the guide tube, and the output end of the guide tube is fixedly connected to the top of the auxiliary hydraulic cylinder.

[0016] Preferably, multiple reset assemblies are provided, and the reset assemblies include a U-shaped frame and a stabilizing rod. The bottom end of the stabilizing rod is fixedly connected to the top of the punching head, the bottom of the U-shaped frame is fixedly connected to the top of the stabilizing frame, the U-shaped frame is sleeved on the surface of the stabilizing rod, and a reset spring is sleeved on the surface of the stabilizing rod. The elastic force of the reset spring drives the U-shaped frame to move upward along the stabilizing rod.

[0017] Beneficial effects of the present invention:

[0018] 1. In the present invention, through the hydraulic linkage pressure design of the bullet-proof mechanism, after the stamping of the stainless steel plate is completed, the main hydraulic cylinder can be driven to compress the hydraulic oil, and then the pressure is synchronously transmitted to multiple auxiliary hydraulic cylinders through the guide pipe. The auxiliary piston rod drives the stabilizing frame to apply compulsory continuous pressure to the stainless steel plate, effectively suppressing the elastic rebound of the material and ensuring the accurate and stable bending angle. In addition, based on the static pressure transmission characteristics of the hydraulic closed system, the main hydraulic cylinder triggers multiple auxiliary hydraulic cylinders to coordinate pressurization, so that the light pressing pressure applied by the staff is converted into a strong pressure of the stabilizing frame on the stainless steel plate, which completely solves the anti-deformation problem caused by the high yield strength of stainless steel. In addition, when the staff presses down the push rod, they can push the pressing handle on the push rod to control the pressure of the stabilizing frame, which has a higher degree of integration, eliminates the subsequent manual shaping process, and further improves work efficiency.

[0019] 2. In the present invention, the lever-type connecting rod design of the stamping mechanism greatly reduces the manpower required by traditional equipment while ensuring stamping accuracy. When the worker presses down the push rod, the linkage system composed of connecting rod 1, connecting rod 2 and connecting rod 3 forms a force arm amplification effect, so that the worker only needs to apply slight downward pressure to complete high-intensity bending operations, significantly alleviating the risk of muscle strain caused by long-term operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 3 This is an exploded view of the punch head and punch cavity of the present invention.

[0024] Figure 4 It is a schematic structural diagram of the punching mechanism of the present invention.

[0025] Figure 5 This is a diagram showing the matching of the punch head and the punch cavity of the present invention.

[0026] Figure 6 This is a comparison chart of the stainless steel plate after good stamping and stamping rebound.

[0027] Figure 7 It is a schematic structural diagram of the punch head and bullet-blocking mechanism of the present invention.

[0028] Figure 8 It is a structural schematic diagram of the bullet-blocking mechanism of the present invention.

[0029] Figure 9 This is a connection diagram of the master hydraulic cylinder and the pressure assembly of the present invention.

[0030] Figure 10 It is a schematic structural diagram of the reset component of the present invention.

[0031] Figure 11 This is a diagram showing the coordination of the trigger assembly and the trigger frame of the present invention.

[0032] The accompanying drawings are marked as follows: 1, punching table; 11, punching chamber; 12, guide rod; 13, compression spring; 2, punching head; 21, receiving frame; 22, bridge; 3, punching mechanism; 31, fixing frame; 311, positioning shaft; 312, rotating shaft; 32, push rod; 321, handle; 33, connecting rod 1; 34, connecting rod 2; 35, connecting rod 3; 351, mounting shaft; 352, fixing shaft; 36, trigger assembly; 361, sliding rod; 362, Pressing handle; 363, movable frame; 364, roller; 365, auxiliary spring; 4, bullet-blocking mechanism; 41, stabilizing frame; 42, main hydraulic cylinder; 43, pressure-applying assembly; 431, auxiliary hydraulic cylinder; 432, auxiliary piston; 433, auxiliary piston rod; 44, main piston; 45, main piston rod; 46, reset assembly; 461, U-shaped frame; 462, stabilizing rod; 463, reset spring; 47, guide tube; 48, trigger frame; 481, guide groove. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0034] Reference Figures 1-6 The present invention provides a stainless steel bending device, including a stamping table 1 and a stamping head 2. A stamping cavity 11 is provided on the stamping table 1. A stamping mechanism 3 and a bullet-proof mechanism 4 are provided on the top of the stamping head 2. The stamping mechanism 3 is used to control the stamping head 2 to apply pressure to the stainless steel plate to make it enter the stamping cavity 11, and increase the force arm when applying pressure to reduce the physical energy consumption of the staff. The bullet-proof mechanism 4 is used to apply strong pressure to the top of the stainless steel plate after the stamping of the stamping mechanism 3 is completed to prevent the stainless steel plate from rebounding.

[0035] Reference Figures 1-6 and Figure 11 The stamping mechanism 3 includes a fixing frame 31 , a push rod 32 , a connecting rod assembly and a trigger assembly 36 .

[0036] Furthermore, a fixed frame 31 is fixedly mounted on the punching table 1. A positioning axis 311 and a rotation axis 312 are fixedly connected to the fixed frame 31. The connecting rod assembly includes a first connecting rod 33, a second connecting rod 34, and a third connecting rod 35. Two connecting rods 33 and 34 are provided. The fixed frame 31 and its key axes (positioning axis 311 and rotation axis 312) provide stable support and a fulcrum for the multi-link system. The design of two first and second connecting rods 33 and 34 enhances the balance and load-bearing capacity of the mechanism.

[0037] Furthermore, the top of the punch head 2 is fixedly connected to a receiving frame 21, one end of the connecting rod 3 35 is fixedly connected to a mounting shaft 351, and the other end of the connecting rod 3 35 is fixedly connected to a fixed shaft 352. One end of the connecting rod 1 33 is rotatably connected to the receiving frame 21, and the other end of the connecting rod 1 33 is rotatably connected to the fixed shaft 352. One end of the connecting rod 2 34 is rotatably connected to the fixed shaft 352, and the other end of the connecting rod 2 34 is rotatably connected to the rotating shaft 312. One end of the push rod 32 is rotatably connected to the mounting shaft 351, and the other end of the push rod 32 is fixedly connected to a handle 321. The push rod 32 is also rotatably mounted on the surface of the positioning shaft 311. Through the precise rotational connection relationship, a force transmission and amplification system is constructed with the push rod 32 as the input and the coordinated action of multiple connecting rods (connecting rod 1 33, connecting rod 2 34 and connecting rod 3 35). This structure efficiently converts the downward force applied by the operator to the handle 321 into a powerful force to drive the punch head 2 downward, significantly saving manpower.

[0038] Furthermore, the punching table 1 is fixedly connected to a guide rod 12, of which multiple guide rods 12 are provided. The receiving frame 21 is fixedly connected to a bridge 22, which is sleeved on the surface of the guide rod 12. A compression spring 13 is sleeved on the surface of the guide rod 12. The elastic force of the compression spring 13 drives the bridge 22 to move upward along the guide rod 12. The cooperation between the guide rod 12 and the bridge 22 ensures the accuracy and stability of the vertical movement of the punch head 2 and prevents deviation. The compression spring 13 provides an automatic reset function, which can efficiently lift the punch head 2 back to its initial position after the punching is completed, simplifying the operation.

[0039] Furthermore, the trigger assembly 36 includes a sliding rod 361, which extends through the push rod 32. The sliding rod 361 and the push rod 32 form a sliding guide along the axis of the sliding rod 361. A pressing handle 362 is fixedly connected to one end of the sliding rod 361, and a movable frame 363 is fixedly connected to the other end of the sliding rod 361. A roller 364 is rotatably mounted on the movable frame 363. An auxiliary spring 365 is sleeved on the surface of the sliding rod 361. The elastic force of the auxiliary spring 365 drives the pressing handle 362 to move away from the push rod 32. The design of the trigger assembly 36 integrates a convenient, independently operated trigger unit on the push rod 32, allowing the operator to easily trigger the bullet-stop mechanism 4 at the end of the stamping stroke. The auxiliary spring 365 ensures that the pressing handle 362 automatically returns to its original position after being released, making operation intuitive and efficient.

[0040] When in use, before the CNC machine tool carries out assembly line processing on the stainless steel plate, it is generally necessary to use manual equipment to conduct preliminary testing and processing of the stainless steel plate. Only after the testing and processing are completed and the manufacturing size is determined, the stainless steel plate can flow into the subsequent CNC machine tool and automated production line;

[0041] The staff places the stainless steel plate on the top of the stamping table 1, grabs the handle 321 with his hand, and presses down the push rod 32 to make the push rod 32 rotate downward around the positioning axis 311. The push rod 32 rotates and drives the connecting rod 2 34 to rotate synchronously around the rotating axis 312 away from the fixed frame 31 through the connecting rod 3 35. At the same time, the connecting rod 1 33 drives the receiving frame 21 and the bridge frame 22 to move downward along the guide rod 12 as a whole. The compression spring 13 contracts and the elastic force increases under the extrusion of the bridge frame 22, and the punching head 2 enters the punching cavity 11 downward, gradually bending the stainless steel plate to achieve stamping of the stainless steel plate.

[0042] In summary, through the lever-type connecting rod design of the stamping mechanism 3, the manpower intensity required by traditional equipment is greatly reduced while ensuring the stamping accuracy. When the worker presses down the push rod 32, the linkage system composed of connecting rod 1 33, connecting rod 2 34 and connecting rod 3 35 forms a force arm amplification effect, so that the worker only needs to apply a slight downward pressure to complete the high-intensity bending operation, which significantly alleviates the risk of muscle strain caused by long-term operation. It is especially suitable for large-scale continuous processing scenarios of stainless steel plates, and fundamentally improves production sustainability.

[0043] Reference Figures 1-11 The bullet-blocking mechanism 4 includes a stabilizing frame 41 , a main hydraulic cylinder 42 , a pressure-applying assembly 43 , a reset assembly 46 and a guide tube 47 .

[0044] Furthermore, a master hydraulic cylinder 42 is fixedly mounted on the punch head 2. A master piston 44 is disposed within the master hydraulic cylinder 42. A sealed, sliding, and guiding fit forms between the master piston 44 and the master hydraulic cylinder 42. A master piston rod 45 is fixedly connected to the bottom of the master piston 44. The bottom end of the master piston rod 45 passes through the bottom of the master hydraulic cylinder 42 and extends downward. The bottom end of the master piston rod 45 is fixedly connected to a trigger frame 48. The trigger frame 48 is provided with an inclined guide groove 481, and the roller 364 matches the guide groove 481. The master hydraulic cylinder 42 serves as a pressure source. The downwardly extending design of its master piston rod 45 provides a direct mechanical interface for connecting to and driving the trigger frame 48 below, serving as the starting point for the hydraulic system's operation. The trigger frame 48 and its inclined guide groove 481 constitute a key mechanical conversion mechanism, efficiently converting the linear motion of the roller 364 into vertical lifting motion of the trigger frame 48 and the master piston rod 45, thereby driving the master hydraulic cylinder 42 to generate hydraulic pressure. This ingenious design and reliable transmission ensure reliable transmission.

[0045] Furthermore, multiple pressure-applying assemblies 43 are provided, each comprising a secondary hydraulic cylinder 431, which is fixedly mounted on the punch head 2. A secondary piston 432 is disposed within the secondary hydraulic cylinder 431, and a sealed, sliding, and guiding fit is formed between the secondary piston 432 and the secondary hydraulic cylinder 431. A secondary piston rod 433 is fixedly connected to the bottom of the secondary piston 432. The bottom end of the secondary piston rod 433 passes through the bottom of the secondary hydraulic cylinder 431 and extends downward, and the bottom end of the secondary piston rod 433 is fixedly connected to the stabilizing frame 41. The design of multiple pressure-applying assemblies 43 allows the hydraulic pressure to be evenly transmitted and applied to the stabilizing frame 41 at multiple points. The secondary piston rod 433 extends downward and is directly connected to the stabilizing frame 41, ensuring that the strong pressure generated by the hydraulic pressure is accurately and directly applied to the workpiece.

[0046] Furthermore, the input end of the guide tube 47 is fixedly connected to the top of the main hydraulic cylinder 42. The output end of the guide tube 47, which corresponds to the pressure-applying assembly 43, is fixedly connected to the top of the auxiliary hydraulic cylinder 431. The guide tube 47 forms the hydraulic system's pressure transmission network, efficiently and synchronously transmitting and distributing the pressure generated by the main hydraulic cylinder 42 to each auxiliary hydraulic cylinder 431. This ensures the synchronization and consistency of multi-point pressure application, which is crucial for uniformly suppressing rebound.

[0047] Furthermore, the reset assembly 46 is provided with multiple components, including a U-shaped frame 461 and a stabilizing rod 462. The bottom end of the stabilizing rod 462 is fixedly connected to the top of the punch head 2. The bottom of the U-shaped frame 461 is fixedly connected to the top of the stabilizing frame 41. The U-shaped frame 461 is sleeved on the surface of the stabilizing rod 462. The surface of the stabilizing rod 462 is sleeved with a reset spring 463. The elastic force of the reset spring 463 drives the U-shaped frame 461 to move upward along the stabilizing rod 462. The design of the reset assembly 46 achieves automatic and reliable reset after the stabilizing frame 41 is pressurized. The stabilizing rod 462 ensures that the vertical movement of the stabilizing frame 41 does not deviate. The reset spring 463 provides stable recovery power, ensuring that the bullet-blocking mechanism 4 can quickly and automatically disengage from the workpiece after completing the pressure maintenance, preparing for the removal of the workpiece and the next cycle.

[0048] When in use, when the punch head 2 is completely entered into the punching cavity 11, the staff pushes the pressing handle 362 by hand, so that the pressing handle 362 moves in the direction close to the push rod 32, and the auxiliary spring 365 contracts and the elastic force increases under the pressure of the pressing handle 362, and the roller 364 moves synchronously along the axis of the sliding rod 361. At the same time, the roller 364 rolls along the guide groove 481. Under the pressure of the roller 364, the trigger frame 48 and the main piston rod 45 move upward synchronously as a whole, and the main piston 44 slides upward synchronously along the main hydraulic cylinder 42. The main hydraulic cylinder 42 squeezes the hydraulic oil, and under the action of the hydraulic oil, the secondary piston 432 moves downward synchronously along the secondary hydraulic cylinder 431. The secondary piston 432 moves and drives the stabilizing frame 41 to move downward synchronously through the secondary piston rod 433. At this time, the U-shaped frame 461 moves downward synchronously along the stabilizing rod 462, and the return spring 463 contracts and the elastic force increases under the pressure of the U-shaped frame 461, and the stabilizing frame 41 applies strong pressure downward on the top of the stainless steel plate.

[0049] Afterwards, the staff releases the pressing handle 362, the elastic force of the auxiliary spring 365 is released and drives the pressing handle 362 to move in the direction away from the push rod 32, the roller 364 gradually releases the squeezing of the trigger frame 48, and the elastic force of the reset spring 463 is released. The elastic force of the reset spring 463 drives the U-shaped frame 461 to move upward along the stabilizing rod 462, and the stabilizing frame 41 moves upward synchronously and returns to the initial position. The staff gradually releases the downward pressure on the push rod 32, and the elastic force of the compression spring 13 is gradually released and drives the bridge frame 22 to move upward along the guide rod 12, the punching head 2 moves upward synchronously and returns to the initial position, and the push rod 32 also rotates upward around the positioning axis 311 and returns to the initial position. At this time, the staff can take the stamped stainless steel plate out of the stamping cavity 11.

[0050] In summary, through the hydraulic linkage pressure design of the bullet-proof mechanism 4, after the stamping of the stainless steel plate is completed, the main hydraulic cylinder 42 can be driven to compress the hydraulic oil, and then the pressure is synchronously transmitted to multiple auxiliary hydraulic cylinders 431 through the guide tube 47. The auxiliary piston rod 433 drives the stabilizing frame 41 to apply compulsory continuous pressure to the stainless steel plate, effectively suppressing the elastic rebound of the material and ensuring the precise and stable bending angle. In addition, based on the static pressure transmission characteristics of the hydraulic closed system, the main hydraulic cylinder 42 triggers multiple auxiliary hydraulic cylinders 431 to coordinate pressurization, so that the light pressing pressure applied by the staff is converted into a strong pressure of the stabilizing frame 41 on the stainless steel plate, completely solving the anti-deformation problem caused by the high yield strength of stainless steel. In addition, when the staff presses down the push rod 32, they can push the pressing handle 362 on the push rod 32 to control the pressure of the stabilizing frame 41, which has a higher degree of integration, eliminates the subsequent manual correction process, and further improves work efficiency.

[0051] The working principle of the present invention is as follows: the staff places the stainless steel plate on the top of the stamping table 1, grabs the handle 321 with his hand, and presses down the push rod 32 to make the push rod 32 rotate downward around the positioning axis 311. The push rod 32 rotates and drives the connecting rod 2 34 to rotate synchronously around the rotating axis 312 away from the fixed frame 31 through the connecting rod 3 35. At the same time, the connecting rod 1 33 drives the receiving frame 21 and the bridge frame 22 to move downward along the guide rod 12 as a whole. The compression spring 13 contracts and the elastic force increases under the extrusion of the bridge frame 22, and the punching head 2 enters the punching cavity 11 downward, gradually bending the stainless steel plate to achieve stamping of the stainless steel plate.

[0052] When the pressing head 2 is completely in the pressing cavity 11, the staff pushes the pressing handle 362 by hand, so that the pressing handle 362 moves in the direction close to the push rod 32. The auxiliary spring 365 contracts and the elastic force increases under the squeezing of the pressing handle 362, and the roller 364 moves synchronously along the axis of the sliding rod 361. At the same time, the roller 364 rolls along the guide groove 481. Under the squeezing of the roller 364, the trigger frame 48 and the main piston rod 45 move upward synchronously as a whole, and the main piston 44 slides upward synchronously along the main hydraulic cylinder 42. The main hydraulic cylinder 42 squeezes the hydraulic oil, and under the action of the hydraulic oil, the secondary piston 432 moves downward synchronously along the secondary hydraulic cylinder 431. The secondary piston 432 moves and drives the stabilizing frame 41 to move downward synchronously through the secondary piston rod 433. At this time, the U-shaped frame 461 moves downward synchronously along the stabilizing bar 462, and the return spring 463 contracts and the elastic force increases under the squeezing of the U-shaped frame 461, and the stabilizing frame 41 applies strong pressure downward on the top of the stainless steel plate.

[0053] Afterwards, the staff releases the pressing handle 362, the elastic force of the auxiliary spring 365 is released and drives the pressing handle 362 to move in the direction away from the push rod 32, the roller 364 gradually releases the squeezing of the trigger frame 48, and the elastic force of the reset spring 463 is released. The elastic force of the reset spring 463 drives the U-shaped frame 461 to move upward along the stabilizing rod 462, and the stabilizing frame 41 moves upward synchronously and returns to the initial position. The staff gradually releases the downward pressure on the push rod 32, and the elastic force of the compression spring 13 is gradually released and drives the bridge frame 22 to move upward along the guide rod 12, the punching head 2 moves upward synchronously and returns to the initial position, and the push rod 32 also rotates upward around the positioning axis 311 and returns to the initial position. At this time, the staff can take the stamped stainless steel plate out of the stamping cavity 11.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A stainless steel bending device, comprising a punching table (1) and a punching head (2), wherein a punching cavity (11) is provided on the punching table (1), characterized in that: A stamping mechanism (3) and a bullet-stop mechanism (4) are provided on the top of the stamping head (2). The stamping mechanism (3) is used to control the stamping head (2) to apply pressure to the stainless steel plate so that it enters the stamping cavity (11), and to increase the force arm when applying pressure to reduce the physical energy consumption of the staff. The bullet-stop mechanism (4) is used to apply a strong pressure to the top of the stainless steel plate after the stamping mechanism (3) completes the stamping to prevent the stainless steel plate from rebounding. The punching mechanism (3) includes a fixing frame (31), a push rod (32), a connecting rod assembly and a trigger assembly (36); The bullet-blocking mechanism (4) includes a stabilizing frame (41), a main hydraulic cylinder (42), a pressure-applying assembly (43), a reset assembly (46), and a guide tube (47); The fixed frame (31) is fixedly mounted on the punching table (1), and a positioning shaft (311) and a rotating shaft (312) are fixedly connected to the fixed frame (31). The connecting rod assembly includes a connecting rod 1 (33), a connecting rod 2 (34) and a connecting rod 3 (35). Two connecting rods are provided for each of the connecting rods 1 (33) and the connecting rod 2 (34); The top of the punch head (2) is fixedly connected to a receiving frame (21), one end of the connecting rod three (35) is fixedly connected to a mounting shaft (351), the other end of the connecting rod three (35) is fixedly connected to a fixed shaft (352), one end of the connecting rod one (33) is rotatably connected to the receiving frame (21), the other end of the connecting rod one (33) is rotatably connected to the fixed shaft (352), one end of the connecting rod two (34) is rotatably connected to the fixed shaft (352), the other end of the connecting rod two (34) is rotatably connected to the rotating shaft (312), one end of the push rod (32) is rotatably connected to the mounting shaft (351), the other end of the push rod (32) is fixedly connected to a handle (321), and the push rod (32) is also rotatably mounted on the surface of the positioning shaft (311); A guide rod (12) is fixedly connected to the punching table (1), and a plurality of guide rods (12) are provided. A bridge frame (22) is fixedly connected to the receiving frame (21), and the bridge frame (22) is sleeved on the surface of the guide rod (12). A compression spring (13) is sleeved on the surface of the guide rod (12), and the elastic force of the compression spring (13) drives the bridge frame (22) to move upward along the guide rod (12); The trigger assembly (36) includes a sliding rod (361), the sliding rod (361) passes through the push rod (32), the sliding rod (361) and the push rod (32) form a sliding guide along the axis direction of the sliding rod (361), one end of the sliding rod (361) is fixedly connected to a pressing handle (362), the other end of the sliding rod (361) is fixedly connected to a movable frame (363), a roller (364) is rotatably mounted on the movable frame (363), and an auxiliary spring (365) is sleeved on the surface of the sliding rod (361), and the elastic force of the auxiliary spring (365) drives the pressing handle (362) to move in a direction away from the push rod (32); The main hydraulic cylinder (42) is fixedly mounted on the punch head (2). A main piston (44) is provided inside the main hydraulic cylinder (42). A sealing sliding guide is formed between the main piston (44) and the main hydraulic cylinder (42). A main piston rod (45) is fixedly connected to the bottom of the main piston (44). The bottom end of the main piston rod (45) passes through the bottom of the main hydraulic cylinder (42) and extends downward. The bottom end of the main piston rod (45) is fixedly connected to a trigger frame (48), and a guide groove (481) arranged in an inclined manner is provided on the trigger frame (48), and the roller (364) matches the guide groove (481); A plurality of pressure-applying components (43) are provided, and the pressure-applying components (43) include a secondary hydraulic cylinder (431), the secondary hydraulic cylinder (431) is fixedly mounted on the punch head (2), a secondary piston (432) is provided inside the secondary hydraulic cylinder (431), a sealed sliding guide is formed between the secondary piston (432) and the secondary hydraulic cylinder (431), a secondary piston rod (433) is fixedly connected to the bottom of the secondary piston (432), the bottom end of the secondary piston rod (433) passes through the bottom of the secondary hydraulic cylinder (431) and extends downward, and the bottom end of the secondary piston rod (433) is fixedly connected to the stabilizing frame (41); The input end of the guide tube (47) is fixedly connected to the top of the main hydraulic cylinder (42), the output end of the guide tube (47) is provided with a plurality of corresponding pressure components (43), and the output end of the guide tube (47) is fixedly connected to the top of the auxiliary hydraulic cylinder (431); A plurality of reset assemblies (46) are provided. The reset assemblies (46) include a U-shaped frame (461) and a stabilizing rod (462). The bottom end of the stabilizing rod (462) is fixedly connected to the top of the punch head (2). The bottom of the U-shaped frame (461) is fixedly connected to the top of the stabilizing frame (41). The U-shaped frame (461) is sleeved on the surface of the stabilizing rod (462). A reset spring (463) is sleeved on the surface of the stabilizing rod (462). The elastic force of the reset spring (463) drives the U-shaped frame (461) to move upward along the stabilizing rod (462).

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