Punching device for stainless steel hinge machining

Abstract

The invention relates to the technical field of hinge machining, in particular to a punching device for stainless steel hinge machining, which comprises a punching machine body, the punching machine body comprises a machine body, a driving plate and a worktable, the driving plate and the worktable are vertically distributed, and an upper die punching mechanism and a lower bearing mechanism are vertically distributed between the driving plate and the worktable; a lower die mechanism is arranged above the lower bearing mechanism, and a lubricating mechanism is arranged on the inner side of the lower die mechanism. By arranging the lubricating mechanism and the linkage assembly, automatic oil injection and lubrication can be achieved in the punching process, when the upper die punching mechanism is pressed downwards, the trigger insertion plate triggers the oil pump to work firstly, and lubricating oil is sprayed to annular lubricating cotton and arc lubricating cotton through the oil conveying pipe; afterwards, the abutting and inserting block drives the linkage sliding plate, the first stripping clamping plate and the second stripping clamping plate are folded, the arc lubricating cotton is attached to the punching tool bit, lubrication of the cutting edge and the outer surface of the tool bit is achieved, after punching is completed, the soft arc lubricating cotton can assist stripping, waste is prevented from being adhered to the tool bit, the punching quality is improved, and the service life of the tool bit is prolonged.

Description

Technical Field

[0001] This invention relates to the field of hinge processing technology, specifically a punching device for processing stainless steel hinges. Background Technology

[0002] Stainless steel hinges are indispensable connecting components in doors, windows, furniture, and machinery. In the mass production of stainless steel hinges, the punching device usually works in conjunction with the uncoiling device, straightening mechanism, and subsequent multiple forming dies to form a continuous processing line to meet the needs of high-efficiency production. Currently, the processing mode relying on the coordination of uncoiling, straightening, punching, and subsequent forming processes is a relatively mature continuous processing solution in the stainless steel hinge manufacturing industry. The corresponding punching device, through cooperation with the equipment in each process, realizes the continuous processing of stainless steel hinges from raw strip material to finished product, providing equipment support for the mass supply of hinge products.

[0003] The inventors have discovered at least the following problems in the prior art: The existing lubrication methods of punching equipment are mostly manual or external oil supply, which makes it difficult to achieve precise synchronization with the punching action. This results in untimely and uneven lubrication, and greater friction between the punching head and the sheet metal. This not only affects the punching quality and increases the punching force, but also accelerates the wear of the punching head and shortens its service life. In addition, after punching, the waste material is easy to stick to the punching head, which requires manual or separate cleaning, affecting the continuous punching rhythm, increasing downtime, reducing production efficiency, and may cause the plate to shift or be damaged by secondary punching due to the waste material.

[0004] Therefore, this solution provides a punching device for processing stainless steel hinges to solve the above problems. Summary of the Invention

[0005] To address the problems of asynchronous lubrication and stamping actions, incomplete lubrication, and easy adhesion of punching waste in existing technologies, this invention provides a punching device for processing stainless steel hinges, thereby solving the aforementioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A punching device for processing stainless steel hinges includes a punching machine body, which comprises a machine body and a drive plate and a worktable distributed vertically. An upper die punching mechanism and a lower receiving mechanism are arranged vertically between the drive plate and the worktable. A lower die mechanism is arranged above the lower receiving mechanism, and a lubrication mechanism is arranged inside the lower die mechanism. The upper die punching mechanism includes a lower pressure seat, a clamping plate, two punching heads, a trigger plate, and an abutment block. The lower receiving mechanism includes a lower mounting seat and an oil pump. The lower die mechanism includes a lower die and two linkage components, each including a linkage slide plate, an abutment block one, and an abutment block two. The lubrication mechanism includes a lower support plate, an upper support plate, a ring lubricating cotton, an oil supply pipe, a stripping lubrication component one, and a stripping lubrication component two. The stripping lubrication component one and the stripping lubrication component two are centrally symmetrical. The stripping lubrication component one includes two symmetrical stripping clamping plates one, and the stripping lubrication component two includes two symmetrical stripping clamping plates two. The upper support plate has two insertion holes.

[0007] Preferably, the punching head partially penetrates the clamping plate and the contact plate, the lower pressure seat is fixedly connected to the clamping plate, and limit posts are fixedly connected to the four top corners of the clamping plate. The limit posts penetrate the contact plate, the lower mold, the lower mounting base, and the worktable.

[0008] Preferably, the clamping plate and the contact plate are distributed vertically, a pressure plate is provided between the clamping plate and the contact plate, a trigger plate is fixedly connected to the lower sides of both sides of the clamping plate, an abutment block is fixedly connected to the inner side of the trigger plate, and the abutment block is located on the outer side of the contact plate.

[0009] Preferably, the lower mounting base has a through groove, the oil pump is installed on the inner wall of the through groove, the lower mounting base has a connecting groove, and the inner side wall of the connecting groove is equipped with the oil pump's start / stop switch.

[0010] Preferably, the lower mold has a groove on its upper part, a through mounting groove in the middle of the groove, a lower bearing plate is installed inside the groove by bolts, and sliding grooves are provided on both sides of the lower mold. The linkage slide plate is slidably connected to the inner side of the sliding groove.

[0011] Preferably, a docking groove is provided between the lower support plate and the upper support plate. The first stripping clamp and the second stripping clamp are slidably connected in the docking groove. The two first stripping clamps and the two second stripping clamps correspond to one insertion hole. A raised ring block is provided above the insertion hole. The oil supply pipe is located inside the insertion hole. The ring lubricating cotton is installed above the raised ring block.

[0012] Preferably, a reset spring is provided between the two stripping clamps, and an arc lubricating cotton is installed at the insertion hole of the stripping clamp. A reset spring is provided between the two stripping clamps, and an arc lubricating cotton is installed at the insertion hole of the stripping clamp.

[0013] Preferably, a connecting pipe is connected to one side of the oil delivery pipe, and the connecting pipe is connected to the output end of the oil pump. An upper nozzle and a lower nozzle are evenly distributed around the upper and lower sides of the oil delivery pipe. The upper nozzle is located below the ring lubricating cotton, and the lower nozzle is located above the first and second arc lubricating cottons.

[0014] Preferably, one end of the linkage slide plate is provided with a slot, the slot is fitted with a stop block, the stop block one and two stop blocks two are fixedly connected to the other end of the linkage slide plate, the two stop blocks two are located on both sides of the stop block one and are symmetrical to each other, a buffer plate is provided between the stop block one and the stop blocks two, and a spring is provided on one side of the buffer plate.

[0015] Preferably, the workbench is provided with a discharge chute, the workbench is located on one side, and cleaning mechanisms are provided above both ends of the workbench.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention achieves automatic oil lubrication during the punching process by setting up a lubrication mechanism and linkage components. When the upper die punching mechanism is pressed down, the trigger plate first triggers the oil pump to work, and the lubricating oil is sprayed to the annular lubricating cotton and the arc lubricating cotton through the oil delivery pipe. Then, the abutment block drives the linkage slide plate to close the first and second stripping clamps, so that the arc lubricating cotton fits against the punching head, thereby achieving lubrication of the cutting edge and outer surface of the head. After punching is completed, the soft arc lubricating cotton can also assist in stripping, preventing waste material from sticking to the head, thus improving the punching quality and the life of the head.

[0017] This invention employs an upper and lower nozzle to inject oil into the annular lubricating cotton and the arc lubricating cotton respectively through a lubrication mechanism. This ensures that both the upper and lower surfaces of the steel plate are lubricated during the punching process. The annular lubricating cotton is in continuous contact with the steel plate but is not easily squeezed out of the lubricating oil, while the arc lubricating cotton is only squeezed and releases the lubricating oil during punching. This achieves precise lubrication, avoids oil waste, reduces friction, lowers punching force, and keeps the working environment clean. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the punching machine body of the present invention; Figure 3 For the present invention Figure 1 A schematic diagram of the middle section; Figure 4 This is a schematic diagram of the upper die punching mechanism of the present invention; Figure 5 This is a schematic diagram showing the disassembled structure of the lower receiving mechanism and the lower mold mechanism of the present invention; Figure 6 This is a schematic diagram of the linkage component and lubrication mechanism of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the middle section; Figure 8 This is a schematic diagram of the material stripping lubrication assembly one and the material stripping lubrication assembly two of the present invention.

[0019] In the picture: 1. Punching machine body; 11. Machine body; 12. Worktable; 13. Discharge chute; 14. Drive plate; 2. Cleaning mechanism; 3. Upper die punching mechanism; 31. Lower pressure seat; 32. Clamping plate; 33. Contact plate; 34. Limiting post; 35. Pressure plate; 36. Punching cutter head; 37. Trigger plate; 38. Abutment block; 4. Lower receiving mechanism; 41. Lower mounting base; 42. Through groove; 43. Connecting groove; 44. Oil pump; 45. Linkage component; 451. Linkage slide plate; 452. Slot; 453. Abutment block one; 454. Abutment block two; 455. Buffer plate; 456. Spring; 5. Lower mold mechanism; 51. Lower mold; 52. Groove; 53. Mounting groove; 54. Sliding groove; 6. Lubrication mechanism; 61. Lower support plate; 62. Upper support plate; 621. Raised ring block; 622. Insertion hole; 63. Connecting groove; 64. Ring lubricating cotton; 65. Oil supply pipe; 651. Upper nozzle; 652. Lower nozzle; 653. Connecting pipe; 66. Unloading lubrication assembly 1; 661. Return spring 1; 662. Unloading clamp 1; 663. Arc lubricating cotton 1; 67. Material stripping lubrication assembly two; 671. Reset spring two; 672. Material stripping clamp two; 673. Arc lubricating cotton two. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] Example: Please refer to Figure 1-8 The punching device for processing stainless steel hinges shown includes a punching machine body 1. The punching machine body 1 includes a body 11 and a drive plate 14 and a worktable 12 distributed vertically. An upper die punching mechanism 3 and a lower receiving mechanism 4 are arranged vertically between the drive plate 14 and the worktable 12. A lower die mechanism 5 is arranged above the lower receiving mechanism 4. A lubrication mechanism 6 is arranged inside the lower die mechanism 5. The upper die punching mechanism 3 includes a lower pressure seat 31, a clamping plate 32, two punching cutters 36, a trigger plate 37, and an abutment block 38; The lower receiving mechanism 4 includes a lower mounting base 41 and an oil pump 44; The lower mold mechanism 5 includes a lower mold 51 and two linkage components 45. The linkage components 45 include a linkage slide plate 451, a stop block 1 453 and a stop block 2 454. The lubrication mechanism 6 includes a lower support plate 61, an upper support plate 62, a ring lubricating cotton 64, an oil supply pipe 65, a first unloading lubrication assembly 66 and a second unloading lubrication assembly 67. The first unloading lubrication assembly 66 and the second unloading lubrication assembly 67 are centrally symmetrical. The first unloading lubrication assembly 66 includes two symmetrical unloading clamps 662, and the second unloading lubrication assembly 67 includes two symmetrical unloading clamps 672. The upper support plate 62 has two insertion holes 622. The machine body 11 has an external controller that can control the operation of the reciprocating drive device installed on the top of the machine body 11, thereby allowing the drive plate 14 to drive the upper die punching mechanism 3 to move up and down reciprocally, thereby punching the stainless steel plate. The punching head 36 is aligned with the insertion hole 622, but the diameter of the insertion hole 622 is larger than that of the punching head 36, so that the stripping lubrication assembly 1 66 and the stripping lubrication assembly 2 67 can clamp the punching head 36. The left side of the punching machine body 1 is connected to an unwinding device and a straightening device. The unwinding device can loosen the wound stainless steel pipe coil, while the straightening device straightens and conveys the stainless steel. These are all equipment in the existing stainless steel hinge processing process.

[0022] In this embodiment, part of the punching head 36 penetrates the clamping plate 32 and the contact plate 33, the lower pressure seat 31 is fixedly connected to the clamping plate 32 vertically, and limit posts 34 are fixedly connected at the four top corners of the clamping plate 32. The limit posts 34 penetrate the contact plate 33, the lower mold 51, the lower mounting seat 41 and the worktable 12. Among them, the limiting post 34 is a guide post, and the punching head 36 is installed below the drive plate 14, so that it can move up and down with the drive plate 14.

[0023] In this embodiment, the clamping plate 32 and the contact plate 33 are distributed vertically, and a pressure plate 35 is provided between the clamping plate 32 and the contact plate 33. The trigger insert plate 37 is fixedly connected to the lower sides of both sides of the clamping plate 32, and the abutment block 38 is fixedly connected to the inner side of the trigger insert plate 37. The abutment block 38 is located on the outer side of the contact plate 33. The width of the clamping plate 32 is greater than that of the contact plate 33, so that when the clamping plate 32 moves down, the trigger plate 37 and the abutment block 38 do not contact the contact plate 33. The length of the trigger plate 37 is greater than that of the abutment block 38, and the length of the abutment block 38 is greater than that of the punching head 36. This allows the trigger plate 37 to trigger the operation of the oil pump 44 first, then the abutment block 38 drives the two linkage components 45 to move, and finally the punching head 36 passes through the contact plate 33 to clamp the steel plate. When the upper die punching mechanism 3 moves upward, the abutment block 38 is also pulled out first. The pressure plate 35 is a buffer component in existing punching dies.

[0024] In this embodiment, the lower mounting base 41 has a through groove 42, the oil pump 44 is installed on the inner wall of the through groove 42, the lower mounting base 41 has a connecting groove 43, and the inner side wall of the connecting groove 43 is equipped with the start / stop switch of the oil pump 44. The switch in the connecting groove 43 is connected to the oil pump 44 via a line. When pressed, it will drive the oil pump 44 to operate, and when released, it will turn off the operation of the oil pump 44. The input end of the oil pump 44 is connected to the external lubricating oil tank via a hose, and its output end is connected to the connecting pipe 653 via a hose.

[0025] In this embodiment, a groove 52 is provided on the upper part of the lower mold 51, and a through mounting groove 53 is provided in the middle of the groove 52. The lower bearing plate 61 is installed inside the groove 52 by bolts. Sliding grooves 54 are provided on both sides of the lower mold 51, and the linkage slide plate 451 is slidably connected to the inner side of the sliding groove 54. The lower mold 51 is bolted to the upper part of the lower mounting base 41, and the linkage component 45 is located between the lower mold 51 and the lower mounting base 41. A dovetail block is provided above the linkage slide plate 451, which cooperates with the dovetail groove opened in the sliding groove 54.

[0026] In this embodiment, a docking groove 63 is provided between the lower support plate 61 and the upper support plate 62. The first stripping clamp 662 and the second stripping clamp 672 are slidably connected in the docking groove 63. The two first stripping clamps 662 and the two second stripping clamps 672 correspond to one insertion hole 622 respectively. A protruding ring block 621 is provided above the insertion hole 622. The oil supply pipe 65 is located inside the insertion hole 622. The ring lubricating cotton 64 is installed above the protruding ring block 621. Among them, the raised ring block 621 is integrated with the upper bearing plate 62. The upper bearing plate 62 and the lower bearing plate 61 are provided with grooves for the material stripping clamp 662 and the material stripping clamp 672 to slide. The height of the ring lubricating cotton 64 is higher than that of the groove 52. Therefore, when the steel plate is in the groove 52, its bottom is always in contact with the ring lubricating cotton 64, but the lubricating oil in the ring lubricating cotton 64 cannot be squeezed out.

[0027] In this embodiment, a return spring 661 is provided between the two stripping clamps 662, and an arc lubricating cotton 663 is installed on the stripping clamp 662 at the insertion hole 622. A return spring 671 is provided between the two stripping clamps 672, and an arc lubricating cotton 673 is installed on the stripping clamp 672 at the insertion hole 622. Among them, the first stripping clamp 662, the second stripping clamp 672, and the ring lubricating cotton 64 are all soft wear-resistant sponges that can absorb lubricating oil and overflow lubricating oil during extrusion, thereby lubricating the area around the punched hole in the steel plate.

[0028] In this embodiment, a connecting pipe 653 is connected to one side of the oil supply pipe 65, and the connecting pipe 653 is connected to the output end of the oil pump 44. An upper nozzle 651 and a lower nozzle 652 are evenly distributed around the upper and lower sides of the oil supply pipe 65. The upper nozzle 651 is located below the ring lubricating cotton 64, and the lower nozzle 652 is located above the arc lubricating cotton 663 and the arc lubricating cotton 673. When the oil pump 44 is operating, lubricating oil can be injected into the annular lubricating cotton 64, the arc lubricating cotton one 663 and the arc lubricating cotton two 673 in sequence through the connecting pipe 653, the oil supply pipe 65, the upper nozzle 651 and the lower nozzle 652.

[0029] In this embodiment, a slot 452 is provided at one end of the linkage slide plate 451. The slot 452 cooperates with the abutment block 38. The first abutment block 453 and two second abutment blocks 454 are fixedly connected to the other end of the linkage slide plate 451. The two second abutment blocks 454 are located on both sides of the first abutment block 453 and are symmetrical to each other. A buffer plate 455 is provided between the first abutment block 453 and the second abutment block 454. A spring 456 is provided on one side of the buffer plate 455. In the initial state, the slot 452 is offset from the connecting groove 43 but has an overlapping part. This part fits the cross section of the trigger plate 37. After the trigger plate 37 continues to move down, the abutment block 38 will be inserted into the slot 452, thereby causing the linkage slide plate 451 to move. The ends of the abutment block 1 453 and the abutment block 2 454 are provided with beveled surfaces. The abutment block 1 453 is located between the adjacent stripping clamp 1 662 and stripping clamp 2 672, while the two abutment blocks 2 454 are respectively matched with the other stripping clamp 1 662 and stripping clamp 2 672. Therefore, after the abutment block 1 453 and the abutment block 2 454 are inserted into the docking groove 63, the two stripping clamp 1 662 will move closer to each other, and the two stripping clamp 2 672 will also move closer to each other, so that the arc lubricating cotton 1 663 and the arc lubricating cotton 2 673 can be located in the insertion hole 622.

[0030] In this embodiment, the workbench 12 is provided with a discharge chute 13, and a cleaning mechanism 2 is provided above both ends of the workbench 12 on one side. The discharge trough 13, the through trough 42 and the mounting trough 53 are aligned vertically to facilitate the discharge of waste materials. A collection frame can be installed below the discharge trough 13. The cleaning mechanism 2 consists of two vertically symmetrical cleaning rollers with adjustable spacing, used to clean the steel plates before and after punching.

[0031] The working principle of this invention is as follows: After the external stainless steel coil is straightened and cleaned by the left cleaning mechanism 2, it enters between the contact plate 33 and the lower mold 51. The stainless steel plate is located inside the groove 52 and above the lubrication mechanism 6. The controller outside the machine body 11 can drive the upper mold punching mechanism 3 to move up and down rhythmically and in an orderly manner. With the help of the external straightening equipment, the plate is punched. During the punching process, the contact plate 33 will first contact the upper surface of the lower mold 51. Then the pressure plate 35 will be compressed. Then the lower part of the clamping plate 32 will be in contact with the surface of the contact plate 33, so that the punching head 36 passes through the contact plate 33, the plate and the insertion hole 622 in sequence to complete the punching. When the contact plate 33 contacts the lower mold 51, the trigger plate 37 has already passed through the slot 452 and inserted into the interior of the connecting slot 43, and triggers the switch of the oil pump 44, so that lubricating oil can be delivered to the interior of the connecting pipe 653 through the hose. At this time, the lubricating oil will be sprayed out from the upper nozzle 651 and the lower nozzle 652, so that the annular lubricating cotton 64, the arc lubricating cotton one 663, and the arc lubricating cotton two 673 can fully absorb the lubricating oil. At this time, the bottom of the punching head 36 also contacts the steel plate and causes the steel plate to move down. Thus, when punching, the annular lubricating cotton 64 can lubricate the area below the punched part of the steel plate. Furthermore, as the clamping plate 32 continues to move downwards, the abutment block 38 will insert into the slot 452 and drive the linkage slide plate 451 to move to both sides of the lubrication mechanism 6. This will cause the first abutment block 453 and the second abutment block 454 to enter the docking groove 63 and drive the stripping lubrication assembly 66 and the oil supply pipe 65 to move. This will allow the two stripping clamping plates 662 to move closer together and the two stripping clamping plates 672 to move closer together. Since the punching head 36 passes through the plate at this time, the punching head 36 will pass through the plate. When the head 36 moves down into the interior of the insertion hole 622, the bottom of the punching head 36 will first contact the arc lubricating cotton 663 and the arc lubricating cotton 673, and then the surface of the punching head 36 will pass through. In this way, multiple empty punches can be performed before punching the steel plate, that is, without punching the steel plate, only the drive plate 14 moves down with the upper die punching mechanism 3, so that the cutting edge and outer surface of the punching head 36 can be lubricated, so that the punched parts of the upper and lower steel plates can be lubricated when punching the steel plate in the future. When the upper die punching mechanism 3 moves upward, the punching head 36 will be pulled out from the inside of the insertion hole 622. The lubricant around the punching head 36 will make the punching head 36 be pulled out more smoothly. Since the insert block 38 is still inside the slot 452 at this time, during the process of pulling out the punching head 36, when the bottom of the punching head 36 passes the arc lubricating cotton 673 or the arc lubricating cotton 663, the soft arc lubricating cotton 663 and the arc lubricating cotton 673 will contact the outer periphery of the waste material, thereby preventing the waste material from sticking to the bottom of the punching head 36.

[0032] The punching machine body 1 and the oil pump 44 used in this invention are both existing known electrical devices, and both can be purchased and used directly on the market. Their structure, circuit and control principle are all existing known technologies. Therefore, the structure, circuit and control principle of the punching machine body 1 and the oil pump 44 will not be described in detail here.

[0033] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A punching device for processing stainless steel hinges, comprising a punching machine body (1), characterized in that: The punching machine body (1) includes a machine body (11) and a drive plate (14) and a worktable (12) distributed vertically. An upper die punching mechanism (3) and a lower receiving mechanism (4) are arranged vertically between the drive plate (14) and the worktable (12). A lower die mechanism (5) is arranged above the lower receiving mechanism (4). A lubrication mechanism (6) is arranged inside the lower die mechanism (5). The upper die punching mechanism (3) includes a lower pressure seat (31), a clamping plate (32), two punching heads (36), a trigger plate (37), and an abutment block (38). The lower receiving mechanism (4) includes a lower mounting base (41) and an oil pump (44). The lower mold mechanism (5) includes a lower mold (51) and two linkage components (45). The linkage components (45) include a linkage slide plate (451), a stop block one (453) and a stop block two (454). The lubrication mechanism (6) includes a lower support plate (61), an upper support plate (62), a ring lubricating cotton (64), an oil supply pipe (65), a first unloading lubrication assembly (66) and a second unloading lubrication assembly (67). The first unloading lubrication assembly (66) and the second unloading lubrication assembly (67) are centrally symmetrical. The first unloading lubrication assembly (66) includes two symmetrical unloading clamps (662), and the second unloading lubrication assembly (67) includes two symmetrical unloading clamps (672). The upper support plate (62) has two insertion holes (622).

2. The punching device for processing stainless steel hinges according to claim 1, characterized in that: Part of the punching head (36) passes through the clamping plate (32) and the contact plate (33). The lower pressure seat (31) is fixedly connected to the clamping plate (32) from top to bottom. Limiting posts (34) are fixedly connected at the four top corners of the clamping plate (32). The limiting posts (34) pass through the contact plate (33), the lower mold (51), the lower mounting seat (41), and the worktable (12).

3. The punching device for processing stainless steel hinges according to claim 1, characterized in that: The clamping plate (32) and the contact plate (33) are distributed vertically. A pressure plate (35) is provided between the clamping plate (32) and the contact plate (33). The trigger plate (37) is fixedly connected to the lower sides of the clamping plate (32). The abutment block (38) is fixedly connected to the inner side of the trigger plate (37). The abutment block (38) is located on the outer side of the contact plate (33).

4. The punching device for processing stainless steel hinges according to claim 1, characterized in that: The lower mounting base (41) has a through groove (42), and the oil pump (44) is installed on the inner wall of the through groove (42). The lower mounting base (41) has a connecting groove (43), and the inner side wall of the connecting groove (43) is equipped with the start and stop switch of the oil pump (44).

5. The punching device for processing stainless steel hinges according to claim 1, characterized in that: The lower mold (51) has a groove (52) on its upper part, and a through mounting groove (53) is provided in the middle of the groove (52). The lower bearing plate (61) is installed inside the groove (52) by bolts. The lower mold (51) has sliding grooves (54) on both sides. The linkage slide plate (451) is slidably connected to the inside of the sliding groove (54).

6. The punching device for processing stainless steel hinges according to claim 1, characterized in that: A docking groove (63) is provided between the lower support plate (61) and the upper support plate (62). The first stripping clamp (662) and the second stripping clamp (672) are slidably connected in the docking groove (63). The two first stripping clamps (662) and the two second stripping clamps (672) correspond to a socket (622) respectively. A raised ring block (621) is provided above the socket (622). The oil pipe (65) is located inside the socket (622). The ring lubricating cotton (64) is installed above the raised ring block (621).

7. The punching device for processing stainless steel hinges according to claim 1, characterized in that: A return spring (661) is provided between the two stripping clamps (662), and an arc lubricating cotton (663) is installed at the insertion hole (622) of the stripping clamp (662). A return spring (671) is provided between the two stripping clamps (672), and an arc lubricating cotton (673) is installed at the insertion hole (622) of the stripping clamp (672).

8. The punching device for processing stainless steel hinges according to claim 1, characterized in that: One side of the oil delivery pipe (65) is connected to a connecting pipe (653), which is connected to the output end of the oil pump (44). The upper nozzle (651) and lower nozzle (652) are evenly distributed around the upper and lower sides of the oil delivery pipe (65). The upper nozzle (651) is located below the ring lubricating cotton (64), and the lower nozzle (652) is located above the arc lubricating cotton one (663) and the arc lubricating cotton two (673).

9. A punching device for processing stainless steel hinges according to claim 1, characterized in that: The linkage slide plate (451) has a slot (452) at one end, which is engaged with the abutment block (38). The abutment block one (453) and two abutment blocks two (454) are fixedly connected to the other end of the linkage slide plate (451). The two abutment blocks two (454) are located on both sides of the abutment block one (453) and are symmetrical to each other. A buffer plate (455) is provided between the abutment block one (453) and the abutment blocks two (454). A spring (456) is provided on one side of the buffer plate (455).

10. A punching device for processing stainless steel hinges according to claim 1, characterized in that: The workbench (12) is provided with a discharge trough (13). The workbench (12) is located on one side, and a cleaning mechanism (2) is provided above both ends of the workbench (12).

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