A storage support device for large stamping dies

Abstract

The present invention discloses a storage support device for large stamping dies, mainly related to the field of storage support for stamping dies. It comprises a mobile trolley arranged in a die changing area, a stamping lower die is arranged on the mobile trolley, a stamping upper die is arranged above the stamping lower die, a plurality of support rods are arranged between the stamping lower die and the stamping upper die, a plurality of lifting cylinders are arranged on the stamping lower die, an upper oil pipe is arranged on the mobile trolley, a hydraulic station is arranged on the die changing area, a connected lower oil pipe is arranged on the hydraulic station, a quick-change joint is arranged on the lower oil pipe, the quick-change joint is threadedly connected to the upper oil pipe, a quick-change bracket is vertically slidably connected to the upper edge of the die changing area, the bottom end of the support rod is rotatably connected to the stamping lower die, and the symmetrical rotation connection of the support rod on both sides is provided with a limit rod. The beneficial effect of the present invention is that it can solve the technical problems of low die changing efficiency and inconvenient operation of existing large stamping dies when changing the die, and improve the efficiency of die changing and the environmental protection of stamping production.

Description

Technical Field

[0001] The invention relates to the field of stamping die storage support, in particular to a storage support device for large stamping dies. Background Art

[0002] Due to the large weight of large stamping dies, a rigid support is required between the upper and lower dies to isolate them when they are not in production and storage to prevent damage caused by contact between the dies. In production, the rigid support needs to be manually flipped down and separated from the die. The specific operation is that when the die is replaced, the die needs to be loaded into the stamping machine. After the slider returns to the top dead center, the operator enters the stamping machine and manually flips down the rigid support. The disadvantage of this method is that it greatly increases the die change time and wastes the production capacity of the stamping line. Especially for high-speed stamping lines, the increase in die change time means a greater waste of stamping line production capacity;

[0003] The current improved approach is to equip the lower die with a nitrogen cylinder whose force is sufficient to lift the upper die. After the die is changed to the mobile trolley, the operator flips down the rigid support in the die changing area. After the die enters the stamping machine, the slide moves down to the die changing height, and the upper die clamp clamps the upper die for stamping production. This improved method moves the process of flipping down the rigid support outside the line, which can greatly save die changing time. However, when the stamping line is in production, the upper die will compress the nitrogen cylinder in each stamping stroke, resulting in a lot of noise during production. At the same time, the repeated compression of the nitrogen cylinder causes a lot of energy waste, and the service life of the nitrogen cylinder is greatly reduced, resulting in high energy consumption and high failure rate defects in the stamping line during stamping production. Therefore, how to improve the efficiency and convenience of stamping die changing is a technical problem that needs to be urgently solved in the process of stamping die storage and die changing. Summary of the invention

[0004] The purpose of the present invention is to provide a storage support device for large stamping dies, which can solve the technical problems of low mold changing efficiency and inconvenient operation when changing molds in existing large stamping dies, improve the convenience of contact or separation between upper and lower molds, greatly improve the efficiency of mold changing, and greatly reduce energy or equipment loss in the production process, reduce production costs, and greatly improve the environmental protection of stamping production.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] A storage support device for large stamping dies, comprising a mobile trolley arranged in a die-changing area, a stamping lower die being arranged on the mobile trolley, a stamping upper die being arranged above the stamping lower die, a plurality of support rods being arranged between the stamping lower die and the stamping upper die, a plurality of lifting cylinders being arranged on the stamping lower die, a movable end of the lifting cylinder being in contact with the stamping upper die, an upper oil pipe being arranged on the mobile trolley and being connected to the plurality of lifting cylinders at the same time, a control valve being arranged on the upper oil pipe, a hydraulic station for controlling the lifting of the lifting cylinder being arranged on the die-changing area, a connected lower oil pipe being arranged on the hydraulic station, a quick-change joint for cooperating with the upper oil pipe being arranged on the lower oil pipe, and the quick-change joint being rotated The movable sleeve is arranged on the outside of the lower oil pipe, the quick-change joint is threadedly connected to the upper oil pipe, the upper edge of the mold changing area is vertically slidably connected with a quick-change bracket, the quick-change bracket is connected to the lower oil pipe, the mold changing area is provided with a lifting component that drives the quick-change bracket to slide up and down, and the quick-change bracket is provided with a rotating component that drives the quick-change joint to rotate, the bottom end of the support rod is rotatably connected to the stamping lower die, the upper end of the support rod is in contact with the stamping upper die, the two sides of the support rod are symmetrically rotatably connected with a limit rod, and the upper edge of the stamping lower die is laterally slidably connected with a plurality of limit blocks, the top of the limit block is provided with a limit groove, and the bottom end of the limit rod enters the limit groove when the limit block slides.

[0007] Furthermore, support grooves are symmetrically provided on both sides of the stamping upper die and the stamping lower die, and the support rods and the lifting cylinders are both located in the support grooves. When the hydraulic station is depressurized, the movable end of the lifting cylinder slides downward and separates from the stamping upper die.

[0008] Furthermore, the rotating assembly includes a rotating motor, a driving gear, and a driven gear. The rotating motor is fixed on the quick-change bracket, the driving gear is fixed on the output shaft of the rotating motor, the driven gear is sleeved on the outside of the quick-change joint, and the driving gear is meshed with the driven gear.

[0009] Furthermore, the lifting assembly includes a lifting motor, a screw, and a guide rod. A lifting groove is provided on the mold changing area. The lifting motor is fixed at the bottom of the lifting groove. The screw is fixed on the output shaft of the lifting motor. The guide rod is fixed in the lifting groove. The screw passes through the quick-change bracket and is threadedly connected to it. The guide rod passes through the quick-change bracket and is slidably connected to it.

[0010] Furthermore, the mold changing area is provided with a plurality of connection sensors used in conjunction with the moving trolley, and the connection sensors are electrically connected to the rotating motor and the lifting motor.

[0011] Furthermore, the mold changing area is provided with a plurality of positioning grooves, the connection sensor is arranged at the bottom of the positioning grooves, and the bottom of the movable vehicle is provided with a plurality of moving wheels corresponding to the positions of the positioning grooves, and the moving wheels are in contact with the connection sensors.

[0012] Furthermore, connecting rods are symmetrically arranged on both sides of the movable end of the jacking cylinder, and a plurality of separation sensors used in conjunction with the bottom ends of the connecting rods are arranged on the stamping lower die, and the separation sensors are electrically connected to the rotating motor and the lifting motor.

[0013] Furthermore, the quick-change bracket is rotatably connected to a limit gear, the limit gear and the driving gear are respectively located on both sides of the driven gear, and the limit gear is meshed with the driven gear.

[0014] Furthermore, the stamping lower die is provided with a plurality of slide grooves, the limit block is slidably connected in the slide groove, a power rod is rotatably connected in the slide groove, and the power rod passes through the limit block and is threadedly connected thereto.

[0015] Furthermore, an adjusting rod is rotatably connected to the stamping lower die, and the adjusting rod passes through the side wall of the slide slot. The end of the adjusting rod located in the slide slot and the end of the power rod are both provided with meshing bevel gears.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The structure of the present invention is provided with a support rod and a lifting cylinder used in conjunction with the stamping upper die on the stamping lower die, a lower oil pipe connected to multiple lifting cylinders at the same time is provided on the mobile trolley, and a hydraulic station is provided on the die changing area. The lower oil pipe of the hydraulic station is connected or separated with the upper oil pipe through a quick-change joint. Such a structure uses a quick-change joint to connect the upper oil pipe and the lower oil pipe during die changing. After opening the control valve, the hydraulic station can drive the lifting cylinder to rise and lift the stamping upper die upward, which is convenient for removing the support rod, and then the hydraulic station releases pressure to make the lifting cylinder descend until it is separated from the stamping upper die, so that the stamping After the upper die contacts the stamping lower die, it quickly enters the stamping machine for stamping production. During the production process, the stamping upper die will not contact the lifting cylinder, which reduces possible energy and equipment losses, greatly improves the efficiency and convenience of stamping die change, and improves the environmental protection of stamping production. After the die is used, it can enter the die change area again to connect the upper oil pipe and the lower oil pipe with the quick-change joint, so that the support rod is re-placed between the stamping upper die and the stamping lower die, which is convenient for safer storage of the stamping die and makes the die change and storage process of the stamping die more convenient;

[0018] 2. A quick-change bracket is provided in the mold changing area for vertical sliding. The quick-change bracket is connected to the lower oil pipe. The quick-change bracket uses a lifting assembly to slide up and down. A rotating assembly for driving the quick-change joint to rotate is provided on the quick-change bracket, so that the quick-change joint can be threadedly connected or separated from the upper oil pipe by rotation, making the connection or separation of the upper oil pipe and the lower oil pipe more efficient and convenient, thereby quickly adjusting the relative position of the stamping upper die and the stamping lower die, further improving the efficiency of mold changing and subsequent storage operations;

[0019] 3. The support rods are symmetrically connected to the limit rods for rotation on both sides, and the upper edge of the stamping lower die is laterally slidably connected to the limit block. When the limit block slides, the bottom end of the limit rod enters the limit groove on the top of the limit block, avoiding the rotation of the support rods and achieving effective limitation on the position of the support rods, making the support structure of the support rods for the stamping upper die more stable, further improving the safety and stability of the storage of the stamping die. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Attached Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0021] Attached Figure 2 This invention is attached Figure 1 A partial enlarged view of area A in the middle.

[0022] Attached Figure 3 It is a right side view of the present invention.

[0023] Attached Figure 4 This invention is attached Figure 3 Cross-sectional view along the BB direction.

[0024] Attached Figure 5 This invention is attached Figure 4 A partial enlarged view of area C in the middle.

[0025] Attached Figure 6 This invention is attached Figure 4 Cross-sectional view along the DD direction.

[0026] Attached Figure 7 This invention is attached Figure 6 A partial enlarged view of area E in the middle.

[0027] Attached Figure 8 This invention is attached Figure 4 Cross-sectional view in the FF direction.

[0028] Attached Fig. 9 This invention is attached Figure 8 A partial enlarged view of the middle G area.

[0029] Attached Fig.10 It is a schematic diagram of the state of the lifting cylinder when the mold of the present invention is stored.

[0030] Attached Fig.11 It is a schematic diagram of the state of the lifting cylinder when the mold of the present invention is in use.

[0031] Numbers shown in the accompanying drawings:

[0032] 1. Die-changing area; 2. Moving trolley; 3. Stamping lower die; 4. Stamping upper die; 5. Support rod; 6. Lifting cylinder; 7. Upper oil pipe; 8. Control valve; 9. Hydraulic station; 10. Lower oil pipe; 11. Quick-change connector; 12. Quick-change bracket; 13. Limit rod; 14. Limit block; 15. Limit slot; 16. Support slot; 17. Rotating motor; 18. Driving gear; 19. Driven gear; 20. Lifting motor; 21. Screw; 22. Guide rod; 23. Lifting slot; 24. Connecting sensor; 25. Positioning slot; 26. Moving wheel; 27. Connecting rod; 28. Separation sensor; 29. ​​Limit gear; 30. Slide; 31. Power rod; 32. Adjusting rod; 33. Bevel gear. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the application equally.

[0034] Reference Figure 1 and Figure 2The present invention is a storage support device for large stamping dies. The main structure includes a mobile trolley 2 arranged in a die changing area 1. The die changing area 1 is arranged on the outside of the stamping line and is used to store or switch the production state of the die, so that it can quickly enter the stamping line for stamping production or enter the storage position for storage. The mobile trolley 2 is used to support the stamping die and transport the stamping die to the stamping machine of the stamping line. A stamping lower die 3 is provided on the mobile trolley 2. The stamping lower die 3 is the lower half of the stamping die. A stamping upper die 4 is provided above the stamping lower die 3. The stamping upper die 4 is the upper half of the stamping die. After entering the stamping line, the stamping upper die 4 is connected to the stamping machine, and the raw materials to be stamped enter between the stamping upper die 4 and the stamping lower die 3. The raw material is stamped into a specified shape by moving the stamping upper die 4 downward. A plurality of support rods 5 are arranged between the stamping lower die 3 and the stamping upper die 4. The support rods 5 are used to support the stamping lower die 3 and the stamping upper die 4, so as to separate the two and avoid damage caused by contact between the two during storage. A plurality of lifting cylinders 6 are fixed to the stamping lower die 3 by welding or bolts. The lifting cylinders 6 are arranged on the part outside the stamping processing position of the stamping lower die 3. The movable end of the lifting cylinder 6 is in contact with the stamping upper die 4. When the lifting cylinder 6 rises, the stamping upper die 4 is lifted up, which is convenient for placing or removing the support rods 5, so as to prepare for subsequent storage or production processing. The mobile trolley 2 is provided with an upper oil pipe 7 which is connected with a plurality of lifting cylinders 6 at the same time. The oil pipe 7 is simultaneously connected to the lower chambers of multiple lifting cylinders 6, and the hydraulic oil enters the lower chambers of multiple lifting cylinders 6 through the upper oil pipe 7 to lift the lifting cylinders 6. The upper oil pipe 7 is provided with a control valve 8. The preferred control valve 8 can adopt an electromagnetic valve to realize the opening and closing control of the upper oil pipe 7 to prevent the hydraulic oil from flowing out of the upper oil pipe 7. The mold changing area 1 is provided with a hydraulic station 9 for controlling the lifting of the lifting cylinders 6. The hydraulic station 9 is a storage and supply structure for the hydraulic oil, which is arranged below the mold changing area 1. The hydraulic station 9 is provided with a connected lower oil pipe 10, and the hydraulic oil of the hydraulic station 9 is discharged through the lower oil pipe 10. The lower oil pipe 10 is made of rubber material and can be bent and moved. The upper oil pipe 7 is made of metal material and cannot be bent. When not in use, the lower oil pipe 10 is hidden in the mold changing area 1. When in use, it is pulled upward to extend above the mold changing area 1 to connect with the upper oil pipe 7. The lower oil pipe 10 is provided with a quick-change joint 11 used in conjunction with the upper oil pipe 7. The quick-change joint 11 is used to quickly connect the upper oil pipe 7 and the lower oil pipe 10. Sealing gaskets are provided at the contact positions of the quick-change joint 11 and the upper and lower oil pipes 7 and 10 to prevent leakage of hydraulic oil. The quick-change joint 11 is rotatably sleeved on the outside of the lower oil pipe 10 through a bearing. The quick-change joint 11 is threadedly connected to the upper oil pipe 7. Specifically, an external thread is provided on the outer side of the bottom end of the upper oil pipe 7, and the quick-change joint 11 is threadedly connected to the external thread. Such a structure can be threadedly connected to the upper oil pipe 7 by rotating the quick-change joint 11, and then the lower oil pipe 10 is connected to the bottom end of the upper oil pipe 7.The hydraulic oil of the hydraulic station 9 can enter multiple lifting cylinders 6 at the same time to achieve synchronous driving of multiple lifting cylinders 6. When the stamping die is produced, used or stored, the lower oil pipe 10 is disconnected from the upper oil pipe 7 to ensure the convenience of moving the stamping die. For specific reference, Fig.10 and Fig.11 Before stamping production, use the overhead crane to lift the mobile trolley 2 and the stamping die to the die changing area 1, use the quick-change joint 11 to connect the lower oil pipe 10 and the upper oil pipe 7, so that multiple lifting cylinders 6 rise at the same time to lift the stamping upper die 4. At this time, the support rod 5 can be removed, and then the hydraulic station 9 releases pressure, and the movable ends of the multiple lifting cylinders 6 move downward until they are separated from the stamping upper die 4. At this time, the stamping upper die 4 descends to contact with the stamping lower die 3. After removing the quick-change joint 11, the mobile trolley 2 can be used to move the stamping die to the stamping machine for stamping production. After the production is completed, use The mobile trolley 2 moves the stamping die back to the die changing area 1, repeats the above steps to put the support rod 5 back between the stamping upper die 4 and the stamping lower die 3, and the hydraulic station 9 releases pressure until the movable end of the lifting cylinder 6 is separated from the stamping upper die 4. At this time, the stamping upper die 4 is lowered onto the multiple support rods 5, and the multiple support rods 5 are used to separate the stamping upper die 4 and the stamping lower die 3. After disconnecting the quick-change joint 11, the mobile trolley 2 and the stamping die can be hoisted back to the storage position of the stamping die, making the state switching of the stamping die more efficient and convenient, and improving the convenience of storage or production use;

[0035] The mold changing area 1 is vertically slidably connected with a quick-change bracket 12, and the quick-change bracket 12 is connected to the lower oil pipe 10 by bonding or clamping. The quick-change bracket 12 is used to support the lower oil pipe 10 and drive the lower oil pipe 10 to move. The mold changing area 1 is provided with a lifting component that drives the quick-change bracket 12 to slide up and down. When the lower oil pipe 10 is docked with the upper oil pipe 7, the lifting component is used to drive the quick-change bracket 12 to move upward, so that the lower oil pipe 10 moves to the bottom end of the upper oil pipe 7 and then docks with it using the quick-change joint 11. The quick-change bracket 12 is provided with a rotating component that drives the quick-change joint 11 to rotate. When the rotating component contacts the bottom end of the quick-change joint 11 with the upper oil pipe 7, the quick-change joint 11 is driven to rotate. The change joint 11 is automatically threadedly connected to the bottom end of the upper oil pipe 7. During the docking process, the lifting assembly continuously drives the quick-change bracket 12 and the lower oil pipe 10 to move upward, meeting the requirement that the lower oil pipe 10 needs to continue to move upward during threaded connection; the bottom end of the support rod 5 is rotatably connected to the stamping lower die 3 through a pin shaft or a hinge, so that the support rod 5 can be rotated to vertically support the stamping upper die 4, and can also be rotated to the horizontal or side to separate from the stamping upper die 4 to ensure the smoothness of the up and down movement of the stamping upper die 4. The upper end of the support rod 5 is in contact with the stamping upper die 4, so that when the stamping die is stored, the support rod 5 is located between the stamping lower die 3 and the stamping upper die 4 to separate the two and avoid damage that may be caused by contact between the two. Refer to Figure 3The two sides of the support rod 5 are symmetrically connected to the limit rod 13 through a pin or a hinge. Preferably, magnetic blocks are symmetrically arranged on both sides of the support rod 5. The magnetic blocks are magnetically attracted to the limit rod 13 to facilitate the storage of the limit rod 13. A plurality of limit blocks 14 are slidably connected to the upper edge of the stamping lower die 3 in a transverse direction. The sliding direction of the limit block 14 is perpendicular to the rotation direction of the support rod 5. A limit groove 15 is provided on the top of the limit block 14. When the limit block 14 slides, the bottom end of the limit rod 13 enters the limit groove 15. Preferably, the cross section of the limit groove 15 is U-shaped. The bottom end of the limit rod 13 passes through the U-shaped opening and enters the limit groove 15. When the support rod 5 rotates to the vertical position to support the stamping upper die 4, the limit rod 13 is rotated toward both sides, and then the limit block 14 is slid laterally toward the limit rod 13, so that the bottom end of the limit rod 13 enters the limit groove 15, so that the limit rod 13 can no longer rotate in the rotation direction of the support rod 5, thereby achieving effective limitation of the limit rod 13 and the support rod 5, so that the support rod 5 supports the stamping upper die 4 more firmly, ensuring the safety and stability of the stamping die storage.

[0036] Preferably, support grooves 16 are symmetrically provided on both sides of the stamping upper die 4 and the stamping lower die 3, and the support grooves 16 are formed by the inward depression of the surfaces of the two. The support rods 5 and the lifting cylinders 6 are both located in the support grooves 16. When the hydraulic station 9 is depressurized, the movable end of the lifting cylinder 6 slides downward and separates from the stamping upper die 4. Such a structure ensures that there is still a certain space between the stamping upper die 4 and the stamping lower die 3 when they are in contact. These spaces can be used to place the lifting cylinder 6, so that the stamping upper die 4 will not contact the lifting cylinder 6 after the pressure is relieved during production and use, and the lifting cylinder 6 will not be compressed, thereby avoiding unnecessary energy and equipment losses and ensuring the environmental protection of the stamping production.

[0037] Preferably, refer to Figure 8 and Fig. 9 The rotating assembly includes a rotating motor 17, a driving gear 18, and a driven gear 19. The rotating motor 17 is fixed to the quick-change bracket 12 by welding or bolts, the driving gear 18 is fixed to the output shaft of the rotating motor 17 by welding or bolts, and the driven gear 19 is sleeved on the outside of the quick-change joint 11 by welding or bolts. The driving gear 18 is meshed with the driven gear 19. When the rotating motor 17 of such a structure is started, the driving gear 18 can be driven to rotate, and the driven gear 19 and the quick-change joint 11 are driven to rotate under the action of the meshing connection, so that the quick-change joint 11 can be automatically threadedly connected to the upper oil pipe 7, so that the connection or separation of the quick-change joint 11 and the upper oil pipe 7 is more efficient and convenient, the efficiency of connection or separation is improved, and the convenience of connection or separation of the upper oil pipe 7 and the lower oil pipe 10 is improved.

[0038] Preferably, refer to Figure 4 and Figure 5 The lifting assembly includes a lifting motor 20, a screw rod 21, and a guide rod 22. The mold changing area 1 is provided with a lifting groove 23, and the lifting groove 23 is formed by the surface of the mold changing area 1 being recessed downward. The lifting motor 20 is fixed to the bottom of the lifting groove 23 by welding or bolts, and the screw rod 21 is fixed to the output shaft of the lifting motor 20 by welding or bolts. The guide rod 22 is fixed in the lifting groove 23 by welding or bolts. The screw rod 21 penetrates the quick-change bracket 12 and is threadedly connected thereto. The guide rod 22 penetrates the quick-change bracket 12 and is slidably connected thereto. Such a structure can drive the screw rod 21 to rotate when the lifting motor 20 is started, and the quick-change bracket 12 is driven to slide up and down along the guide rod 22 under the action of the threaded connection, so as to realize the sliding drive of the quick-change bracket 12. The structure is simple, and the control of the up and down sliding distance of the quick-change bracket 12 and the lower oil pipe 10 is more accurate, thereby improving the accuracy and smoothness of the quick-change joint 11 and the upper oil pipe 7 when being threadedly connected.

[0039] Preferably, the mold changing area 1 is provided with a plurality of connection sensors 24 used in conjunction with the mobile trolley 2. The specific connection sensors 24 are contact pressure sensors. When the mobile trolley 2 is hoisted to the mold changing area 1, it contacts with the plurality of connection sensors 24 at the same time. The connection sensors 24 are electrically connected to the rotating motor 17 and the lifting motor 20. The electrical signals generated by the plurality of connection sensors 24 are transmitted to the rotating motor 17 and the lifting motor 20, driving the quick-change bracket 12 and the lower oil pipe 10 to rise at the same time. At the same time, the quick-change connector 11 is threadedly connected to the bottom end of the upper oil pipe 7 after rotation, so that the docking operation of the lower oil pipe 10 and the upper oil pipe 7 is automatically started after the stamping die enters the mold changing area 1, which simplifies the operating steps of the operator and further improves the efficiency and convenience of docking the lower oil pipe 10 with the upper oil pipe 7. The preferred control valve 8 is a solenoid valve, which is also electrically connected to the connection sensor 24, so that the control valve 8 automatically opens when the lower oil pipe 10 and the upper oil pipe 7 are docked, so that the hydraulic oil can smoothly enter the lifting cylinder 6 through the connected pipeline.

[0040] Preferably, the mold changing area 1 is provided with a plurality of positioning grooves 25, and the positioning grooves 25 are formed by the surface of the mold changing area 1 being recessed downward. The connecting sensor 24 is arranged at the bottom of the positioning grooves 25, and the bottom of the mobile trolley 2 is provided with a plurality of moving wheels 26 corresponding to the positions of the positioning grooves 25. Preferably, the moving wheels 26 are of a lifting structure, which contacts the ground after descending to facilitate the movement of the mobile trolley 2, and separates from the ground after ascending to improve the firmness of the stamping die during storage and use. The moving wheels 26 contact the connecting sensor 24. Such a structure enables the multiple moving wheels 26 at the bottom to enter the positioning grooves 25 at the same time after the mobile trolley 2 is lifted into the mold changing area 1, so that the mobile trolley 2 can no longer move. At the same time, the multiple connecting sensors 24 are squeezed to generate electrical signals to automatically start the docking step of the lower oil pipe 10 and the upper oil pipe 7, and the mobile trolley 2 and the stamping die are not easy to shake during the docking process, which further improves the accuracy of the docking.

[0041] Preferably, the movable ends of the lifting cylinder 6 are symmetrically fixed with connecting rods 27 by welding or bolts on both sides, and the stamping lower die 3 is provided with a plurality of separation sensors 28 used in conjunction with the bottom ends of the connecting rods 27. The separation sensors 28 adopt contact pressure sensors currently available on the market. The separation sensors 28 are electrically connected to the rotating motor 17 and the lifting motor 20. After the state of the stamping die is switched, when the lifting cylinder 6 moves downward to separate from the stamping upper die 4, the bottom end of the connecting rod 27 on the lifting cylinder 6 contacts the separation sensor 28 to generate an electrical signal, and the electrical signal is transmitted to the rotating motor 17 and the lifting motor 20 automatically start the separation step of the lower oil pipe 10 and the upper oil pipe 7. The preferred control valve 8 is a solenoid valve, which is also electrically connected to the separation sensor 28, so that the control valve 8 is automatically closed after separation to prevent the hydraulic oil in the upper oil pipe 7 from flowing out, so that the stamping die can automatically separate the lower oil pipe 10 and the upper oil pipe 7 when switching to the storage state or the production state, and use the quick-change bracket 12 to automatically hide the lower oil pipe 10 in the lifting groove 23, so that the subsequent movement of the mobile trolley 2 toward the stamping line is smoother, further improving the convenience of the subsequent movement of the stamping die.

[0042] Preferably, the quick-change bracket 12 is rotatably connected to a limit gear 29 via a bearing, and the limit gear 29 and the driving gear 18 are respectively located on both sides of the driven gear 19, and the limit gear 29 is meshed with the driven gear 19. The setting of the limit gear 29 is used to limit the rotation structure of the driven gear 19, so that the driven gear 19 is effectively restricted between the driving gear 18 and the limit gear 29. It is not easy to shake during the rotation and threaded connection with the upper oil pipe 7, which further improves the accuracy of the docking between the lower oil pipe 10 and the upper oil pipe 7.

[0043] Preferably, the stamping lower die 3 is provided with a plurality of slide grooves 30, and the slide grooves 30 are formed by the downward depression of the surface of the stamping lower die 3, and the limit block 14 is slidably connected in the slide grooves 30, and the slide grooves 30 provide limitation and guidance for the sliding of the limit block 14, and a power rod 31 is rotatably connected in the slide grooves 30 through bearings, and the power rod 31 passes through the limit block 14 and is threadedly connected thereto. Such a structure can drive the limit block 14 to slide in the slide grooves 30 by rotating the power rod 31, so that the limit groove 15 at the top of the limit block 14 can more accurately cooperate with the bottom end of the limit rod 13, and after the two cooperate, the limit block 14 is restricted inside by the slide grooves 30, and the limit rod 13 and the support rod 5 can no longer rotate, which further improves the limiting effect on the support rod 5 and improves the supporting effect on the stamping upper die 4.

[0044] Preferably, refer to Figure 6 and Figure 7 The stamping lower die 3 is rotatably connected with an adjusting rod 32 through a bearing, and the adjusting rod 32 passes through the side wall of the slide slot 30. A knob is provided at the end of the adjusting rod 32 outside the slide slot 30 to facilitate the rotation of the adjusting rod 32. The end of the adjusting rod 32 located in the slide slot 30 and the end of the power rod 31 are both fixed with meshing bevel gears 33 by welding or bolts. Such a structure only requires rotating the knob from the outside to rotate the adjusting rod 32, and the rotation drive of the power rod 31 can be realized under the meshing connection of the two bevel gears 33, which makes the sliding drive of multiple limit blocks 14 more convenient, and further improves the convenience of placing and removing the support rod 5.

[0045] Working principle: The structure of the present invention is provided with a support rod 5 and a lifting cylinder 6 for use with a stamping upper die 4 on the stamping lower die 3, and a lower oil pipe 10 connected to multiple lifting cylinders 6 at the same time is provided on the mobile trolley 2. A hydraulic station 9 is provided on the die changing area 1. The lower oil pipe 10 of the hydraulic station 9 is connected or separated with the upper oil pipe 7 through a quick-change joint 11. Such a structure uses the quick-change joint 11 to connect the upper oil pipe 7 and the lower oil pipe 10 during die changing. After opening the control valve 8, the hydraulic station 9 can drive the lifting cylinder 6 to rise and lift the stamping upper die 4 upward, so that the support rod 5 can be removed easily. Then the hydraulic station 9 releases pressure to make the lifting cylinder 6 descend until it is separated from the stamping upper die 4, so that the stamping upper die 4 contacts the stamping lower die 3 and quickly enters the stamping machine for stamping production. During the production process, the stamping upper die 4 will not contact the lifting cylinder 6, which reduces the possible energy and equipment losses, greatly improves the die change efficiency and convenience of the stamping die, and improves the environmental protection of the stamping production. After the die is used, it can enter the die change area 1 again to connect the upper oil pipe 7 and the lower oil pipe 10 using the quick-change joint 11, so that the support rod 5 is re-placed on the stamping upper die 4. The quick-change bracket 12 is arranged vertically in the die-changing area 1 for sliding movement, and the quick-change bracket 12 is connected to the lower oil pipe 10. The quick-change bracket 12 slides up and down by means of a lifting assembly. The quick-change bracket 12 is provided with a rotating assembly for driving the quick-change joint 11 to rotate, so that the quick-change joint 11 can be threadedly connected or separated with the upper oil pipe 7 by rotation, so that the connection or separation of the upper oil pipe 7 and the lower oil pipe 10 is more efficient and convenient, thereby quickly The relative positions of the stamping upper die 4 and the stamping lower die 3 can be adjusted quickly, further improving the efficiency of die changing and subsequent storage operations; the support rods 5 are symmetrically connected to the limiting rods 13 for rotation on both sides, and the upper edge of the stamping lower die 3 is laterally slidably connected to the limiting block 14. When the limiting block 14 slides, the bottom end of the limiting rod 13 enters the limiting groove 15 at the top of the limiting block 14, avoiding the rotation of the support rod 5, realizing effective restriction on the position of the support rod 5, making the support structure of the support rod 5 for the stamping upper die 4 more stable, further improving the safety and stability of the storage of the stamping die.

Claims

1. A storage support device for large stamping dies, comprising a mobile trolley (2) arranged in a die changing area (1), a stamping lower die (3) being arranged on the mobile trolley (2), a stamping upper die (4) being arranged above the stamping lower die (3), a plurality of support rods (5) being arranged between the stamping lower die (3) and the stamping upper die (4), characterized in that: The stamping lower die (3) is provided with a plurality of lifting cylinders (6), the movable ends of the lifting cylinders (6) are in contact with the stamping upper die (4), the movable trolley (2) is provided with an upper oil pipe (7) which is simultaneously connected to the plurality of lifting cylinders (6), the upper oil pipe (7) is provided with a control valve (8), the die changing area (1) is provided with a hydraulic station (9) for controlling the lifting and lowering of the lifting cylinders (6), the hydraulic station (9) is provided with a connected lower oil pipe (10), the lower oil pipe (10) is provided with a quick-change joint (11) for use with the upper oil pipe (7), the quick-change joint (11) is rotatably sleeved on the outside of the lower oil pipe (10), the quick-change joint (11) is threadedly connected to the upper oil pipe (7), the die changing area (1) is vertically slidably connected with a quick-change bracket (12), the quick-change bracket (12) is connected to the lower oil pipe (10), and the die changing area (1) is provided with a driving quick-change bracket (12). A lifting assembly that slides up and down, the quick-change bracket (12) is provided with a rotating assembly that drives the quick-change joint (11) to rotate, the bottom end of the support rod (5) is rotationally connected to the stamping lower die (3), the upper end of the support rod (5) is in contact with the stamping upper die (4), the two sides of the support rod (5) are symmetrically rotationally connected with limit rods (13), the upper edge of the stamping lower die (3) is laterally slidably connected with a plurality of limit blocks (14), the top of the limit block (14) is provided with a limit groove (15), when the limit block (14) slides, the bottom end of the limit rod (13) enters the limit groove (15), both sides of the stamping upper die (4) and the stamping lower die (3) are symmetrically provided with support grooves (16), the support rod (5) and the lifting cylinder (6) are both located in the support groove (16), when the hydraulic station (9) is depressurized, the movable end of the lifting cylinder (6) slides downward and separates from the stamping upper die (4).

2. A storage support device for large stamping dies according to claim 1, characterized in that: The rotating assembly comprises a rotating motor (17), a driving gear (18), and a driven gear (19); the rotating motor (17) is fixed on the quick-change bracket (12); the driving gear (18) is fixed on the output shaft of the rotating motor (17); the driven gear (19) is sleeved on the outside of the quick-change joint (11); and the driving gear (18) meshes with the driven gear (19).

3. A storage support device for large stamping dies according to claim 2, characterized in that: The lifting assembly comprises a lifting motor (20), a screw rod (21), and a guide rod (22); a lifting groove (23) is provided on the mold changing area (1); the lifting motor (20) is fixed at the bottom of the lifting groove (23); the screw rod (21) is fixed on the output shaft of the lifting motor (20); the guide rod (22) is fixed in the lifting groove (23); the screw rod (21) passes through the quick-change bracket (12) and is threadedly connected thereto; and the guide rod (22) passes through the quick-change bracket (12) and is slidably connected thereto.

4. A storage support device for large stamping dies according to claim 3, characterized in that: The mold changing area (1) is provided with a plurality of connection sensors (24) used in conjunction with the moving trolley (2), and the connection sensors (24) are electrically connected to the rotating motor (17) and the lifting motor (20).

5. A storage support device for large stamping dies according to claim 4, characterized in that: The mold changing area (1) is provided with a plurality of positioning grooves (25), the connection sensor (24) is arranged at the bottom of the positioning grooves (25), and the bottom of the moving trolley (2) is provided with a plurality of moving wheels (26) corresponding to the positions of the positioning grooves (25), and the moving wheels (26) are in contact with the connection sensor (24).

6. A storage support device for large stamping dies according to claim 3, characterized in that: Connecting rods (27) are symmetrically arranged on both sides of the movable end of the lifting cylinder (6), and a plurality of separation sensors (28) used in conjunction with the bottom ends of the connecting rods (27) are arranged on the stamping lower die (3), and the separation sensors (28) are electrically connected to the rotating motor (17) and the lifting motor (20).

7. A storage support device for large stamping dies according to claim 2, characterized in that: The quick-change bracket (12) is rotatably connected to a limit gear (29), the limit gear (29) and the driving gear (18) are respectively located on both sides of the driven gear (19), and the limit gear (29) is meshed with the driven gear (19).

8. The storage support device for large stamping dies according to claim 1, characterized in that: The stamping lower die (3) is provided with a plurality of slide grooves (30), the limit block (14) is slidably connected in the slide groove (30), a power rod (31) is rotatably connected in the slide groove (30), and the power rod (31) passes through the limit block (14) and is threadedly connected thereto.

9. A storage support device for large stamping dies according to claim 8, characterized in that: An adjusting rod (32) is rotatably connected to the lower stamping die (3), the adjusting rod (32) passing through the side wall of the slide groove (30), and meshing bevel gears (33) are provided on the end of the adjusting rod (32) located in the slide groove (30) and the end of the power rod (31).

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