A stamping and trimming die

Abstract

The utility model relates to punch equipment technical field and disclose a kind of stamping trimming die, comprising: rack, upper cutting knife, right cutting knife, left cutting knife, hydraulic cylinder and lower cutting knife, upper cutting knife, right cutting knife and left cutting knife are all set in the inner chamber of rack by hydraulic cylinder, the inner chamber of rack is provided with nitrogen cylinder, the output end of nitrogen cylinder is connected with lower cutting knife, the front of rack is provided with cleaning mechanism, the cleaning mechanism includes guide slot block, the top both sides of guide slot block are slidably connected with spray head, the outside of spray head is communicated with hose, the other end of hose is communicated with air pump, the outside of nitrogen cylinder is provided with sliding slot block. The stamping trimming die, airflow can be discharged from the output end of spray head by hose, and the swarf generated by workpiece stamping cutting is blown into the collecting port at the top of rack for centralized collection and treatment, which can prevent swarf accumulation from affecting machining accuracy or damaging components.

Description

Technical Field

[0001] This utility model relates to the field of stamping equipment technology, specifically a stamping trimming die. Background Technology

[0002] Stamping trimming dies are mainly used for edge trimming of various workpieces (such as metal or non-metal workpieces) after stamping. They are key equipment to ensure the dimensional accuracy of workpieces and meet the requirements of subsequent assembly or use. They are widely applicable to various production scenarios that require precise edge trimming, such as automotive parts, electronic components, and hardware products.

[0003] Existing stamping dies for workpiece edge trimming have shortcomings in the coordinated control of the cutting blade's motion. The upper cutting blade often fails to synchronize with the left and right cutting blades, resulting in inconsistent timing and force of each blade acting on the workpiece during the cutting process. This easily leads to deviations in the workpiece's edge dimensions and makes it impossible to consistently guarantee cutting accuracy. At the same time, the lower cutting blade mostly adopts a fixed installation structure and lacks a design that can adaptively adjust with the cutting action. During cutting, the blade directly forms hard contact with the workpiece, which not only easily causes rapid wear of the blade edge and shortens the tool's service life, but may also cause deformation of the workpiece due to hard compression, affecting the quality of the cut workpiece. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a stamping trimming die to solve the aforementioned technical problems of lacking an adaptive design that can adjust with the cutting action, resulting in direct hard contact between the cutting tool and the workpiece during cutting. This not only easily causes rapid wear of the cutting edge and shortens the tool's service life, but may also cause deformation of the workpiece due to hard extrusion, affecting the quality of the cut workpiece.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stamping trimming die, comprising: a frame, an upper cutting blade, a right cutting blade, a left cutting blade, a hydraulic cylinder, and a lower cutting blade. The upper cutting blade, the right cutting blade, and the left cutting blade are all disposed in the inner cavity of the frame via hydraulic cylinders. A nitrogen cylinder is disposed in the inner cavity of the frame, and the output end of the nitrogen cylinder is connected to the lower cutting blade. A cleaning mechanism is disposed on the front side of the frame.

[0006] The cleaning mechanism includes a guide block, with nozzles slidably connected to both sides of the top of the guide block. A hose is connected to the outside of the nozzle, and an air pump is connected to the other end of the hose. A sliding block is provided outside the nitrogen cylinder, with sliders slidably connected to both sides of the top of the sliding block. A connecting rod is rotatably connected to the upper end of the slider, and the other end of the connecting rod is rotatably connected to the output end of the nitrogen cylinder.

[0007] The slider has a curved arm on its front side, which is connected to the nozzle. The top of the frame has a collection port. During operation, the workpiece is first placed on the top of the frame. The hydraulic cylinder is activated to drive the right cutting blade, left cutting blade and upper cutting blade to move synchronously, thereby accurately cutting the workpiece.

[0008] The lower cutting blade achieves a floating effect with the help of a nitrogen cylinder. Under normal conditions, the lower cutting blade is flush with the surrounding cutting blades. When the upper cutting blade descends to work, it exerts a force on the lower cutting blade. At this time, the nitrogen cylinder at the bottom contracts and drives the lower cutting blade to contract, thus completing the entire floating cutting process. This floating structure can avoid hard contact between the cutting tool and the workpiece during cutting, reduce tool wear and workpiece deformation, and improve cutting quality.

[0009] Simultaneously, the air pump is activated, and airflow is discharged from the nozzle output end through the hose, which can promptly blow the waste generated by workpiece stamping and cutting into the collection port for centralized collection and treatment, preventing waste accumulation from affecting processing accuracy or damaging parts; and when the nitrogen cylinder extends and retracts, it drives the slider to slide along the sliding groove through the connecting rod, and then drives the nozzle to slide along the guide groove through the bent arm, effectively expanding the exhaust coverage of the nozzle and ensuring that waste in all locations within the processing area can be cleaned to the collection port.

[0010] Preferably, both the guide block and the air pump are bolted to the outside of the frame, and a sealing gasket is provided between the frame and the bolts. The sealing gasket can fill the gap between the frame and the bolt connection, which on the one hand prevents external dust, coolant or debris from seeping into the frame or the air pump connection end through the gap, avoiding component corrosion or air passage blockage. On the other hand, it can enhance the stability of the bolt connection, reduce bolt loosening caused by vibration during equipment operation, and extend the service life of the equipment.

[0011] Preferably, the top two sides of the guide block are provided with square grooves that are slidably connected to the outside of the curved arm. The square grooves can provide a precise guide trajectory for the sliding of the curved arm, limit the left and right deviation of the curved arm during the movement, ensure that the curved arm drives the nozzle to always move in the preset direction, avoid blind spots in the cleaning of waste due to nozzle position deviation, and ensure the stability of the cleaning effect.

[0012] Preferably, the nitrogen cylinder is mounted on the bottom of the inner cavity of the frame via a base, and the hydraulic cylinder is connected to the outside of the frame via bolts. Mounting the nitrogen cylinder on the base increases the contact area with the bottom of the inner cavity of the frame, improving the installation stability of the nitrogen cylinder and preventing swaying or displacement during telescopic movement, thus ensuring the accuracy of the lower cutting blade's floating effect. The bolted connection of the hydraulic cylinder facilitates disassembly, maintenance, or replacement without altering the main structure of the frame, reducing maintenance difficulty and downtime costs.

[0013] Preferably, a baffle is provided on the back of the frame, and the baffle is provided with the top of the collection port; the baffle can block the waste chips that splash towards the back of the frame during the cutting process, preventing the waste chips from falling to the ground or onto the back of the frame components beyond the collection port range, while guiding the waste chips into the collection port, further improving the waste chip collection efficiency, reducing the amount of subsequent cleaning work, and preventing waste chips from adhering to the back of the frame components and affecting the normal operation of the equipment.

[0014] Preferably, the inner cavity of the frame is provided with a collection box, the collection box is located at the bottom of the collection port, a maintenance channel is provided on the back of the frame, and electric clamps are evenly arranged at the upper end of the frame.

[0015] The collection box can centrally store the waste falling from the collection port. When the waste accumulates to a certain amount, the staff can directly remove the collection box through the maintenance channel for cleaning or waste recycling. The operation is convenient and does not affect other parts of the equipment.

[0016] The maintenance passage also facilitates the inspection and maintenance of components such as nitrogen cylinders and sliding blocks inside the frame without disassembling the frame shell. The electric clamp at the top of the frame can automatically clamp and fix the workpiece after it is placed, preventing the workpiece from shifting due to force during the cutting process, ensuring the accuracy of the cutting dimensions, and replacing manual fixing operations, thereby improving processing efficiency and operational safety.

[0017] Compared with the prior art, the present invention provides a stamping trimming die, which has the following beneficial effects:

[0018] This stamping and trimming die features upper, right, and left cutting blades that move synchronously via hydraulic cylinders for precise workpiece cutting. The lower cutting blade floats using a nitrogen cylinder, normally flush with the surrounding blades. When the upper blade descends, the nitrogen cylinder contracts along with the upper blade's force on the lower blade, causing the lower blade to retract as well, completing the floating cutting process. This floating structure effectively avoids hard contact between the blade and the workpiece during cutting, reducing blade wear and workpiece deformation, thus improving cutting quality. Simultaneously, when the air pump is activated, airflow is discharged from the nozzle output via a hose, promptly blowing the waste generated during stamping and cutting into the collection port at the top of the frame for centralized collection, preventing waste accumulation from affecting processing accuracy or damaging components. Furthermore, during the extension and retraction of the nitrogen cylinder, a slider moves along a sliding groove via a connecting rod, which in turn moves the nozzle along a guide groove via a bent arm, effectively expanding the nozzle's exhaust coverage area and ensuring that waste from all locations within the processing area is collected at the collection port, guaranteeing a cleanliness level. Attached Figure Description

[0019] Figure 1 This is a front view of the present utility model;

[0020] Figure 2 This is a schematic diagram of the external appearance of the cleaning mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the external shape of the cutting blade of this utility model.

[0022] In the diagram: 1. Frame; 11. Baffle; 2. Upper cutting blade; 21. Right cutting blade; 22. Left cutting blade; 23. Hydraulic cylinder; 24. Nitrogen cylinder; 25. Lower cutting blade; 3. Electric clamp; 4. Cleaning mechanism; 41. Guide block; 42. Nozzle; 43. Hose; 44. Air pump; 5. Sliding block; 51. Slider; 52. Connecting rod; 53. Bending arm. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides a technical solution, please refer to Figure 1 , Figure 2 and Figure 3 A stamping and trimming die includes: a frame 1, an upper cutting blade 2, a right cutting blade 21, a left cutting blade 22, a hydraulic cylinder 23, and a lower cutting blade 25. The upper cutting blade 2, the right cutting blade 21, and the left cutting blade 22 are all disposed in the inner cavity of the frame 1 via the hydraulic cylinder 23. A nitrogen cylinder 24 is disposed in the inner cavity of the frame 1. The output end of the nitrogen cylinder 24 is connected to the lower cutting blade 25. A cleaning mechanism 4 is disposed on the front side of the frame 1.

[0025] The cleaning mechanism 4 includes a guide block 41, with nozzles 42 slidably connected to both sides of the top of the guide block 41. A hose 43 is connected to the outside of the nozzles 42, and an air pump 44 is connected to the other end of the hose 43. A sliding block 5 is provided on the outside of the nitrogen cylinder 24. A slider 51 is slidably connected to both sides of the top of the sliding block 5. A connecting rod 52 is rotatably connected to the upper end of the slider 51, and the other end of the connecting rod 52 is rotatably connected to the output end of the nitrogen cylinder 24.

[0026] The slider 51 has a curved arm 53 on its front side, which is connected to the nozzle 42. The top of the frame 1 has a collection port. When working, the workpiece is first placed on the top of the frame 1. The hydraulic cylinder 23 is started to drive the right cutting blade 21, the left cutting blade 22 and the upper cutting blade 2 to move synchronously, thereby accurately cutting the workpiece.

[0027] The lower cutting blade 25 achieves a floating effect with the help of a nitrogen cylinder 24. Under normal conditions, the lower cutting blade 25 is flush with the surrounding cutting blades. When the upper cutting blade 2 descends to work, the upper cutting blade 2 exerts a force on the lower cutting blade 25. At this time, the nitrogen cylinder 24 at the bottom contracts and drives the lower cutting blade 25 to contract, thus completing the entire floating cutting process. This floating structure can avoid hard contact between the blade and the workpiece during cutting, reduce blade wear and workpiece deformation, and improve cutting quality.

[0028] Simultaneously, the air pump 44 is activated, and the airflow is discharged from the output end of the nozzle 42 through the hose 43. This can promptly blow the waste generated by the stamping and cutting of the workpiece into the collection port for centralized collection and treatment, preventing the accumulation of waste from affecting the processing accuracy or damaging the parts. Furthermore, when the nitrogen cylinder 24 is in extension and retraction, it will drive the slider 51 to slide along the sliding groove 5 through the connecting rod 52, and then drive the nozzle 42 to slide along the guide groove 41 through the bent arm 53, effectively expanding the exhaust coverage of the nozzle 42 and ensuring that waste in all locations within the processing area can be cleaned to the collection port.

[0029] Both the guide block 41 and the air pump 44 are bolted to the outside of the frame 1, and a sealing gasket is provided between the frame 1 and the bolt. The sealing gasket can fill the gap between the frame 1 and the bolt connection. On the one hand, it can prevent external dust, coolant or waste from seeping into the inside of the frame 1 or the connection end of the air pump 44 through the gap, avoiding component corrosion or air passage blockage. On the other hand, it can enhance the stability of the bolt connection, reduce bolt loosening caused by vibration during equipment operation, and extend the service life of the equipment.

[0030] The top two sides of the guide block 41 are provided with square grooves that are slidably connected to the outside of the curved arm 53. The square grooves can provide a precise guide trajectory for the sliding of the curved arm 53, limit the left and right deviation of the curved arm 53 during the movement, and ensure that the curved arm 53 drives the nozzle 42 to always move in the preset direction, so as to avoid blind spots in the cleaning of waste due to the position deviation of the nozzle 42 and ensure the stability of the cleaning effect.

[0031] The nitrogen cylinder 24 is mounted on the bottom of the inner cavity of the frame 1 via a base, and the hydraulic cylinder 23 is connected to the outside of the frame 1 via bolts. The mounting of the nitrogen cylinder 24 via the base increases the contact area with the bottom of the inner cavity of the frame 1, improves the installation stability of the nitrogen cylinder 24, and prevents the nitrogen cylinder 24 from shaking or shifting during telescopic movement, thus ensuring the accuracy of the floating effect of the lower cutting blade 25. The hydraulic cylinder 23 is connected by bolts, which facilitates the disassembly, maintenance or replacement of the hydraulic cylinder 23 in the future without modifying the main structure of the frame 1, reducing maintenance difficulty and downtime costs.

[0032] A baffle 11 is provided on the back of the frame 1, and the baffle 11 has a collection port on top. The baffle 11 can block the waste chips that splash towards the back of the frame 1 during the cutting process, preventing the waste chips from falling to the ground or onto the back of the frame 1. At the same time, it can guide the waste chips into the collection port, further improving the waste chip collection efficiency, reducing the amount of subsequent cleaning work, and preventing the waste chips from adhering to the back of the frame 1 and affecting the normal operation of the equipment.

[0033] The inner cavity of the frame 1 is equipped with a collection box, which is located at the bottom of the collection port. A maintenance channel is provided on the back of the frame 1, and electric clamps 3 are evenly arranged at the upper end of the frame 1.

[0034] The collection box can centrally store the waste falling from the collection port. When the waste accumulates to a certain amount, the staff can directly remove the collection box through the maintenance channel for cleaning or waste recycling. The operation is convenient and does not affect other parts of the equipment.

[0035] The maintenance passage also facilitates the inspection and maintenance of components such as the nitrogen cylinder 24 and sliding groove block 5 inside the frame 1 without disassembling the outer shell of the frame 1. The electric clamp 3 at the upper end of the frame 1 can automatically clamp and fix the workpiece after it is placed, preventing the workpiece from shifting due to force during the cutting process, ensuring the accuracy of the cutting dimensions, and replacing manual fixing operations, thereby improving processing efficiency and operational safety.

[0036] This solution first places the workpiece on top of the frame 1, and starts the hydraulic cylinder 23 to drive the right cutting blade 21, left cutting blade 22 and upper cutting blade 2 to move and cut the workpiece. The lower cutting blade 25 uses the nitrogen cylinder 24 to create a floating effect. Under normal conditions, the lower cutting blade 25 is flush with the surrounding cutting blades. When the upper cutting blade 2 descends to work, the upper cutting blade 2 exerts a force on the lower cutting blade 25, and the nitrogen cylinder 24 below contracts, causing the lower cutting blade 25 to contract, thus completing the entire floating cutting effect.

[0037] At the same time, the air pump 44 is started, and the airflow is discharged from the output end of the nozzle 42 through the hose 43, and the waste generated by the workpiece stamping is discharged into the collection port for collection and treatment. Meanwhile, when the nitrogen cylinder 24 moves, it drives the slider 51 to move through the connecting rod 52, and then drives the nozzle 42 to move through the bent arm 53, thereby increasing the exhaust range of the nozzle 42.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stamping and trimming die, comprising: The machine includes a frame (1), an upper cutting blade (2), a right cutting blade (21), a left cutting blade (22), a hydraulic cylinder (23), and a lower cutting blade (25). The upper cutting blade (2), the right cutting blade (21), and the left cutting blade (22) are all installed in the inner cavity of the frame (1) via the hydraulic cylinder (23). The machine is characterized in that a nitrogen cylinder (24) is installed in the inner cavity of the frame (1), and the output end of the nitrogen cylinder (24) is connected to the lower cutting blade (25). A cleaning mechanism (4) is installed on the front of the frame (1). The cleaning mechanism (4) includes a guide groove block (41), and the top two sides of the guide groove block (41) are slidably connected. A nozzle (42) is connected to the outside of the nozzle (42), and a hose (43) is connected to the other end of the hose (43). An air pump (44) is connected to the other end of the hose (43). A sliding groove block (5) is provided on the outside of the nitrogen cylinder (24). A slider (51) is slidably connected to both sides of the top of the sliding groove block (5). A connecting rod (52) is rotatably connected to the upper end of the slider (51). The other end of the connecting rod (52) is rotatably connected to the output end of the nitrogen cylinder (24). A curved arm (53) is provided on the front of the slider (51). The curved arm (53) is connected to the nozzle (42). A collection port is provided on the top of the frame (1).

2. The stamping and trimming die according to claim 1, characterized in that: The guide block (41) and the air pump (44) are both bolted to the outside of the frame (1), and a sealing gasket is provided between the frame (1) and the bolt.

3. A stamping and trimming die according to claim 1, characterized in that: The guide block (41) has square grooves on both sides of its top, which are slidably connected to the outside of the curved arm (53).

4. A stamping and trimming die according to claim 1, characterized in that: The nitrogen cylinder (24) is mounted on the bottom of the inner cavity of the frame (1) via a base, and the hydraulic cylinder (23) is connected to the outside of the frame (1) via bolts.

5. A stamping and trimming die according to claim 1, characterized in that: The back of the frame (1) is provided with a baffle (11), and the baffle (11) is provided with the top of the collection port.

6. A stamping trimming die according to claim 1, characterized in that: The inner cavity of the frame (1) is provided with a collection box, which is located at the bottom of the collection port. A maintenance channel is provided on the back of the frame (1), and electric clamps (3) are evenly arranged on the upper end of the frame (1).

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