A stamping device for door lock machining

Abstract

The application relates to the technical field of stamping devices, and discloses a stamping device for door lock machining, which is used to solve the problems of waste adhesion on the lower end surface of an upper die affecting subsequent stamping operation and excessive collapse angle of a buckle hole. When the upper die moves downward, a power plate is extruded, so that the power plate pushes a power block and a pushing rod to move. When the lower end surface of the upper die moves to the same height as the pushing rod, the pushing rod is just moved to the side wall of the lower end surface of the upper die, so that the pushing rod pushes the waste adhered to the lower end surface of the upper die, and the waste adhered to the lower end surface of the upper die is prevented from affecting the subsequent stamping operation. When the power plate pushes the power block to move, the power block pushes a bottom ring and a top ring to move upward. The upward-moving top ring reversely extrudes the collapse angle of the buckle hole, so that the amplitude of the collapse angle at the buckle hole is reduced, and the flatness of the buckle hole position after punching is further ensured.

Description

TECHNICAL FIELD

[0001] The application relates to a stamping device for door lock machining. BACKGROUND

[0002] A door lock is a safety core component of a door, and its structure is different according to the type of the lock (such as a mechanical lock, an electronic lock, an intelligent lock and the like), but basically includes a panel, a handle, a lock cylinder, a lock body, a lock tongue, a transmission mechanism, a buckle piece and the like, wherein the buckle piece is a key component working in cooperation with the lock tongue in the door lock system, and the buckle piece is generally fixed to the side edge of a door frame (a position corresponding to the lock tongue of a door leaf), and the lock tongue is inserted into the buckle piece when the door is closed, and the lock tongue and the lock tongue on the door leaf form a clamping relationship.

[0003] In the production of the door lock buckle piece, the overall plate is generally processed into the shape of the buckle piece through the stamping action between the upper die and the lower die seat of the stamping device, however, when the upper die stamps the plate, a great impact force is generated on the plate by the upper die, the waste falling off the plate is adhered to the lower end face of the upper die, the waste moves up and down with the upper die, and the waste on the lower end face of the upper die affects the subsequent stamping operation when the plate is stamped subsequently; and in order to facilitate the stamping operation, there is a certain gap between the upper die and the lower die seat punching hole of the stamping device, and when the upper die stamps the plate on the lower die seat, the edge of the plate buckle piece hole is deformed downward (such as a collapsed corner, curling and the like), and the collapsed corner is too large to cause the edge of the buckle piece hole to be turned down, the friction is increased when the lock tongue is inserted, and the lock tongue cannot be returned to the position, thereby affecting the normal use of the door lock. SUMMARY

[0004] The application provides a stamping device for door lock machining, which has the advantages of preventing waste from adhering to the lower end face of the upper die and reducing the collapsed corner of the buckle piece hole, so as to solve the problems that the waste adhering to the lower end face of the upper die affects the subsequent stamping operation and the collapsed corner of the buckle piece hole is too large.

[0005] To achieve the above-mentioned purpose, the application adopts the following technical scheme: a stamping device for door lock machining, comprising a support box body, a support column, a hydraulic mechanism, a lower die seat, an upper die and a control system, L-shaped grooves are formed on both sides of the punching hole of the lower die seat, the L-shaped grooves comprise horizontal grooves and vertical grooves, a pushing mechanism for pushing the waste adhering to the lower end face of the upper die is movably installed in the L-shaped groove, the pushing mechanism comprises: a power plate, which is slidingly and sealingly installed in the vertical groove of the L-shaped groove; a power block, which is slidingly installed in the horizontal groove of the L-shaped groove, and the power block is in sliding contact with the power plate; a pushing bar, which is fixedly installed at the bottom end of the side wall of the power block close to the punching hole of the lower die seat; a jacking groove is formed in the side wall of the punching hole of the lower die seat, and a reset mechanism for reversely extruding the collapsed corner of the buckle piece hole is movably arranged in the jacking groove.

[0006] Further, the reset mechanism comprises a bottom ring slidingly installed in the jacking groove, and a slope is formed at the bottom end of the two sides and slidingly contacts the power block; a top ring is fixedly connected to the upper end surface of the bottom ring and slidingly and sealingly contacts the punched side wall of the lower die seat.

[0007] Further, the thickness of the top ring is less than the gap between the punched side wall of the lower die seat and the upper die side wall.

[0008] Further, the contact surface of the power plate and the contact surface of the power block and the slope are inclined at an angle of 45 degrees, and the length of the power plate extending out of the vertical groove of the L-shaped groove is the same as the distance from the upper end surface of the top ring to the upper end surface of the lower die seat.

[0009] Further, the lower die seat is provided with a cleaning mechanism for cleaning the lower end surface of the upper die, and the cleaning mechanism comprises an elastic bag movably sleeved on the outside of the top ring and fixedly connected to the top end of the bottom ring, a plurality of supporting springs arranged in the elastic bag for supporting the elastic bag, a gas storage tank fixedly connected to the top end of the elastic bag and fixedly connected to the inner wall of the jacking groove, the gas storage tank being in communication with the elastic bag through a one-way valve I, a plurality of air pipes embeddedly installed on the two sides of the punch hole of the lower die seat and in communication with the gas storage tank at the bottom end and connected with a pressure relief valve at the top end facing the punch hole of the lower die seat, and an elastic tube arranged in the bottom ring and in communication with the elastic bag at one end and provided with a one-way valve II at the other end.

[0010] Further, the gas storage tank cannot be deformed to the naked eye, and the maximum volume in the gas storage tank remains unchanged.

[0011] Further, the pressure relief valve at the top end of the air pipe tightly abuts against the top end of the top ring, and the upward movement of the top ring blocks the pressure relief valve on the air pipe.

[0012] Further, the one-way valve I is in communication from the elastic bag to the gas storage tank, and the one-way valve II is in communication from the outside to the elastic bag.

[0013] Further, the contact surface of the power plate and the contact surface of the power block and the slope are embedded with a plurality of balls.

[0014] The application has the following beneficial effects:

[0015] 1. The punch device for door lock machining provided by the application can extrude the power plate when the upper die moves downward, so that the power plate pushes the power block and the pushing bar to move, and when the lower end surface of the upper die moves to the same height as the pushing bar, the pushing bar is just moved to the side wall of the lower end surface of the upper die, so that the pushing bar pushes the waste adhered to the lower end surface of the upper die, preventing the lower end surface of the upper die from being contaminated by the waste and affecting the subsequent punching operation.

[0016] 2、The punch device for door lock machining provided by the application, when the power block is moved by the power plate, the power block pushes the bottom ring and the top ring to move upwards, the top ring moving upwards reversely extrudes the collapsed corner of the buckle hole, so that the amplitude of the collapsed corner at the buckle hole is reduced, further ensuring the flatness of the buckle hole position after punching.

[0017] 3、The punch device for door lock machining provided by the application, when the bottom ring moves upwards, the stretchable capsule is extruded, the gas in the stretchable capsule enters the gas storage tank through the one-way valve I, the pressure of the gas in the gas storage tank increases, when the pressure reaches the pressure relief pressure of the pressure relief valve on the air pipe, the gas in the gas storage tank is discharged from the air pipe, so that the lower end surface of the upper die is blown, preventing the subsequent stamping surface from being scratched due to the adhesion of waste scraps on the lower end surface of the upper die, and accelerating the flow of the gas to cool the stamping position of the lower die seat and the upper die.

[0018] 4、The punch device for door lock machining provided by the application, when the bottom ring and the top ring move upwards, the gas outlet of the pressure relief valve on the air pipe is closed, so that the gas pressure in the gas storage tank reaches the maximum, and the bottom ring and the top ring are reset under the action of the supporting spring force when the upper die is reset, at this time, the top ring no longer blocks the gas outlet of the pressure relief valve on the air pipe, so that the gas with high pressure in the gas storage tank is discharged from the gas outlet of the pressure relief valve on the air pipe, the flow rate of the gas is increased, and the cleaning effect of the gas flow on the lower end surface of the upper die is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0020] The application can be more clearly understood and appreciated from the following detailed description, taken in conjunction with the accompanying drawings, in which:

[0021] Figure 1 is a schematic diagram of the three-dimensional structure of the application;

[0022] Figure 2 is a schematic diagram of the structure of the lower die seat, the upper die and the guide mechanism of the application;

[0023] Figure 3 is a schematic diagram of the structure of the lower die seat and the upper die of the application;

[0024] Figure 4 is a schematic diagram of the structure of the lower die seat of the application;

[0025] Figure 5 is a sectional view of the lower die seat of the application;

[0026] Figure 6 is a schematic diagram of the internal structure of the lower die seat of the application;

[0027] Figure 7 is a schematic diagram of the internal structure of the lower die seat of the application;Figure 6 Partial structural section view of the device.

[0028] In the figure: 1, support box; 2, support column; 3, hydraulic mechanism; 4, lower die seat; 41, L-shaped groove; 42, pushing mechanism; 421, power plate; 422, power block; 423, pushing bar; 43, jacking groove; 44, reset mechanism; 441, bottom ring; 442, slope; 443, top ring; 451, telescopic bag; 452, supporting spring; 453, gas tank; 454, one-way valve I; 455, air pipe; 456, telescopic pipe; 457, one-way valve II; 5, upper die; 6, guide mechanism; 7, feeding mechanism; 8, control system. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0030] Embodiment one

[0031] Please refer to Figure 1 and Figure 2 A stamping device for door lock machining, comprising a support box 1, a support column 2, a hydraulic mechanism 3, a lower die seat 4, an upper die 5, a guide mechanism 6, a feeding mechanism 7 and a control system 8, one side of the top end of the support box 1 is fixedly installed with the support column 2 and the lower die seat 4, and the support column 2 is at the edge of the upper end surface of the support box 1, and the lower die seat 4 is at the middle position of the upper end surface of the support box 1, one side of the support column 2 is fixedly installed with the hydraulic mechanism 3, the output end of the hydraulic mechanism 3 is fixedly connected with the upper die 5, and the hydraulic mechanism 3 and the upper die 5 are directly above the lower die seat 4, the guide mechanism 6 is arranged between the lower die seat 4 and the upper die 5, and the lower end of the guide mechanism 6 is fixedly connected to the edge of the upper end surface of the lower die seat 4, the upper end of the guide mechanism 6 is inserted into the upper die 5, one side of the upper end surface of the support box 1 is fixedly installed with the feeding mechanism 7, and the position of the side wall of the support box 1 is fixedly installed with the control system 8 of the stamping device.

[0032] Please refer to Figures 2-6, the punch hole of the lower die seat 4 is provided with an L-shaped groove 41 on both sides, the L-shaped groove 41 includes a horizontal groove and a vertical groove, the top end of the vertical groove penetrates the lower die seat 4, one end of the horizontal groove communicates with the vertical groove, the other end of the vertical groove communicates with the punch hole of the lower die seat 4, a pushing mechanism 42 for pushing the waste adhered to the lower end face of the upper die 5 is movably installed in the L-shaped groove 41, the pushing mechanism 42 includes a power plate 421, a power block 422 and a pushing rod 423, the power plate 421 is slidingly and sealingly installed in the vertical groove of the L-shaped groove 41, the top end of the power plate 421 extends out of the vertical groove of the power plate 421, the power block 422 is slidingly installed in the horizontal groove of the L-shaped groove 41, the power block 422 is in sliding contact with the power plate 421, and the contact surface between the power block 422 and the power plate 421 is an inclined surface, the power block 422 is pushed downward by the power plate 421 to move towards the punch hole of the lower die seat 4, and the pushing rod 423 is fixedly installed on the side wall bottom end of the power block 422 close to the punch hole of the lower die seat 4;

[0033] When the plate is processed by using the stamping device, the plate is conveyed between the lower die seat 4 and the upper die 5 by the feeding mechanism 7, the upper die 5 is pushed downward by the hydraulic mechanism 3, and the power plate 421 on the lower die seat 4 is pushed downward by the upper die 5 during stamping of the plate, the power plate 421 pushes the power block 422 to move the pushing rod 423 to the position of the punch hole of the lower die seat 4, when the plate on the upper die 5 contacts the upper end face of the lower die seat 4, the position of the lower end face of the upper die 5 is flush with the position of the pushing rod 423, the bottom end of the side wall of the power block 422 is close to the bottom end of the side wall of the upper die 5, and the pushing rod 423 on the bottom end of the side wall of the power block 422 pushes the waste adhered to the lower end face of the upper die 5 to prevent the waste from adhering to the lower end face of the upper die 5 to affect subsequent stamping work.

[0034] Please refer to Figures 2-6 The side wall of the punch hole of the lower die seat 4 is provided with a jacking groove 43, and the bottom end of the jacking groove 43 communicates with the horizontal groove of the power plate 421, and the jacking groove 43 movably has a reset mechanism 44 for reversely extruding the collapsed corner of the buckle hole, the reset mechanism 44 includes a bottom ring 441 and a top ring 443, the bottom ring 441 is slidingly installed in the jacking groove 43, the bottom ends of the two sides of the bottom ring 441 are provided with inclined slopes 442, the inclined slopes 442 are in sliding contact with the power block 422, the surface in close contact between the power block 422 and the inclined slope 442 is an inclined surface, and the power block 422 can push the bottom ring 441 to move upward when the power block 422 moves to the punch hole of the lower die seat 4, the top ring 443 is fixedly connected to the upper end face of the bottom ring 441, and the outer side wall of the top ring 443 is in sliding sealing contact with the side wall of the punch hole of the lower die seat 4;

[0035] When the plate on the upper die 5 pushes the power plate 421 downward, the power plate 421 pushes the power block 422 to move toward the punching position of the lower die seat 4, and the power block 422 synchronously pushes the bottom ring 441 upward, and the upward moving bottom ring 441 drives the top ring 443 to synchronously move upward, when the power plate 421 is completely pushed into the vertical slot of the L-shaped slot 41, the bottom ring 441 and the top ring 443 rise to the top end, and the top end of the top ring 443 is flush with the upper end surface of the lower die seat 4, during the rising of the top ring 443, the upper end surface of the top ring 443 reversely extrudes the collapsed corner of the buckle hole, so that the amplitude of the collapsed corner at the buckle hole is reduced, and the flatness of the position of the buckle hole after punching is further ensured.

[0036] The thickness of the top ring 443 is smaller than the gap between the punching side wall of the lower die seat 4 and the side wall of the upper die 5, so that the top ring 443 can move in the gap between the punching side wall of the lower die seat 4 and the side wall of the upper die 5, and the upward movement of the top ring 443 is prevented from being hindered by the upper die 5.

[0037] The contact surface between the power plate 421 and the power block 422 and the contact surface between the slope 442 and the power block 422 are inclined surfaces with an inclination of 45°, so that the power plate 421, the power block 422 and the power block 422 and the bottom ring 441 can normally slide; and the length of the power plate 421 extending out of the vertical slot of the L-shaped slot 41 is the same as the distance from the upper end surface of the top ring 443 to the upper end surface of the lower die seat 4, so that when the power plate 421 is completely slid downward into the vertical slot of the L-shaped slot 41, the upper end surface of the top ring 443 can be flush with the upper end surface of the lower die seat 4, and the power plate 421 and the top ring 443 can both reach the specified position.

[0038] The working principle of the embodiment one of the application is as follows:

[0039] Please refer to Figures 1-6 When the punching device is used to process the plate, the plate is conveyed to the position between the lower die seat 4 and the upper die 5 through the feeding mechanism 7, and the upper die 5 is pushed downward through the hydraulic mechanism 3, and the power plate 421 on the lower die seat 4 is pushed downward by the upper die 5 during the punching process of the plate, the power plate 421 pushes the power block 422 to move, and the power block 422 drives the pushing bar 423 to move toward the punching position of the lower die seat 4, when the plate on the upper die 5 contacts the upper end surface of the lower die seat 4, the position of the lower end surface of the upper die 5 is flush with the position of the pushing bar 423, and the bottom end of the side wall of the power block 422 abuts against the bottom end of the side wall of the upper die 5, at the same time, the pushing bar 423 at the bottom end of the side wall of the power block 422 pushes the waste adhered to the lower end surface of the upper die 5, so that the waste adhered to the lower end surface of the upper die 5 is pushed, and the subsequent punching operation is prevented from being affected by the waste adhered to the lower end surface of the upper die 5.

[0040] When the power plate 421 is pushed down by the plate on the upper die 5, the power plate 421 pushes the power block 422 to move downwardly to the punching hole of the lower die base 4, and the power block 422 synchronously pushes the bottom ring 441 to move upwardly, and the upwardly moving bottom ring 441 drives the top ring 443 to synchronously move upwardly, and when the power plate 421 is completely pushed into the vertical slot of the L-shaped slot 41, the bottom ring 441 and the top ring 443 are lifted to the topmost end, and the top end of the top ring 443 is flush with the upper end surface of the lower die base 4, and in the lifting process of the top ring 443, the upper end surface of the top ring 443 reversely extrudes the collapsed corner of the buckle hole, so that the amplitude of the collapsed corner at the buckle hole is reduced, and the flatness of the position of the buckle hole after punching is further ensured.

[0041] Embodiment two

[0042] Embodiment two is further improved on the basis of embodiment one.

[0043] Different from embodiment one, referring to Figures 2-6 , the lower die base 4 is provided with a cleaning mechanism for cleaning the lower end surface of the upper die 5, and the cleaning mechanism comprises an expansion bag 451, an air tank 453, a one-way valve I 454, an air pipe 455, an expansion pipe 456 and a one-way valve II 457, the expansion bag 451 is movably sleeved outside the top ring 443 and is located in the jacking groove 43, the bottom end of the expansion bag 451 is fixedly connected to the top end of the bottom ring 441, a plurality of supporting springs 452 are arranged in the expansion bag 451 and used for supporting the expansion bag 451, the top end of the expansion bag 451 is fixedly connected with the air tank 453, the top end of the air tank 453 is fixedly connected to the inner wall of the jacking groove 43, the air tank 453 and the expansion bag 451 are communicated through the one-way valve I 454, a plurality of air pipes 455 are embeddedly installed on both sides of the punching hole of the lower die base 4, the bottom end of the air pipe 455 is communicated with the air tank 453, the top end of the air pipe 455 is connected with a pressure relief valve and faces the punching hole of the lower die base 4, the expansion pipe 456 is arranged in the bottom ring 441 at the bottom end of the expansion bag 451, one end of the expansion pipe 456 is communicated with the bottom end of the expansion bag 451, the other end of the expansion pipe 456 penetrates through the bottom ring 441 and is communicated with the one-way valve II 457, and the one-way valve II 457 penetrates through the bottom end of the lower die base 4.

[0044] When the power plate 421 is pushed down by the plate on the upper die 5, the power plate 421 pushes the power block 422 to move down to the punching of the lower die seat 4, the power block 422 pushes the bottom ring 441 to move up, the up-moving bottom ring 441 extrudes the telescopic bag 451, the gas in the telescopic bag 451 is extruded, the air pressure is increased, the gas in the telescopic bag 451 enters the gas storage tank 453 through the one-way valve I 454, when the air pressure in the gas storage tank 453 reaches the relief pressure of the relief valve on the vent pipe 455, the gas in the gas storage tank 453 is discharged through the vent pipe 455 and the relief valve on the vent pipe 455, blows to the lower end face of the upper die 5, cleans the waste adhered to the lower end face of the upper die 5, prevents the waste adhered to the lower end face of the upper die 5 from causing scratches on the subsequent stamping surface, and accelerates the flow of the gas in the punching of the lower die seat 4, cools the stamping position of the lower die seat 4 and the upper die 5.

[0045] The gas storage tank 453 cannot be deformed with naked eyes, and the maximum volume in the gas storage tank 453 remains unchanged; when the gas in the telescopic bag 451 enters the gas storage tank 453, the volume of the gas storage tank 453 will not increase, so that the pressure of the gas in the gas storage tank 453 is increased, and the impact force of the gas flowing out of the gas storage tank 453 is enhanced.

[0046] The relief valve at the top end of the vent pipe 455 is close to the top end of the top ring 443, and the up-moving top ring 443 blocks the relief valve on the vent pipe 455; when the bottom ring 441 and the top ring 443 just move up, the top ring 443 will close the gas outlet of the relief valve on the vent pipe 455, so that the gas in the gas storage tank 453 gradually rises until the pressure reaches the maximum, and during the resetting process of the upper die 5, the bottom ring 441 and the top ring 443 are reset under the action of the elastic force of the supporting spring 452, at this time, the top ring 443 no longer blocks the gas outlet of the relief valve on the vent pipe 455, so that the gas with high pressure in the gas storage tank 453 is discharged from the relief valve on the vent pipe 455, the flow rate of the gas is increased, and the cleaning effect of the gas flow on the lower end face of the upper die 5 is further enhanced.

[0047] The flow direction of the one-way valve I 454 is from the telescopic bag 451 to the gas storage tank 453, and the flow direction of the one-way valve II 457 is from the outside to the telescopic bag 451; when the telescopic bag 451 is extruded, the gas in the telescopic bag 451 can enter the gas storage tank 453 to supplement the gas in the gas storage tank 453 and increase the pressure of the gas in the gas storage tank 453, and when the bottom ring 441 and the top ring 443 are reset under the action of the supporting spring 452, the outside gas enters the telescopic bag 451 through the one-way valve II 457 and the telescopic pipe 456 to supplement the gas in the telescopic bag 451.

[0048] The contact surface of the power plate 421 and the power block 422 is embedded with a plurality of balls, and the slope 442 of the bottom ring 441 and the contact surface of the power block 422 are also embedded with a plurality of balls; the friction between the contact surface of the power plate 421 and the power block 422 and the contact surface of the slope 442 and the power block 422 is reduced, so that the excessive friction does not cause excessive damage to the contact surface.

[0049] The working principle of the second embodiment of the present application is as follows:

[0050] Please refer to Figures 1-6 When the power plate 421 is pushed downward by the plate on the upper die 5, the power plate 421 pushes the power block 422 to move downward to the punching hole of the lower die seat 4, the power block 422 pushes the bottom ring 441 to move upward, the upward moving bottom ring 441 extrudes the telescopic bag 451, the gas in the telescopic bag 451 is extruded, the gas pressure increases, the gas in the telescopic bag 451 enters the gas storage tank 453 through the one-way valve Ⅰ 454, when the gas pressure in the gas storage tank 453 reaches the relief pressure of the relief valve on the air pipe 455, the gas in the gas storage tank 453 is discharged through the air pipe 455 and the relief valve on the air pipe 455, and blows to the lower end surface of the upper die 5, so as to clean the waste adhered to the lower end surface of the upper die 5, prevent the waste adhered to the lower end surface of the upper die 5 from causing scratches on the subsequent stamping surface, and accelerate the flow of the gas in the punching hole of the lower die seat 4, so as to cool the stamping position of the lower die seat 4 and the upper die 5;

[0051] When the bottom ring 441 and the top ring 443 just move upward, the top ring 443 will close the gas outlet of the relief valve on the air pipe 455, so that the gas in the gas storage tank 453 gradually rises until the pressure reaches the maximum, and the bottom ring 441 and the top ring 443 are reset under the action of the elastic force of the supporting spring 452 during the resetting process of the upper die 5, at this time, the top ring 443 no longer blocks the gas outlet of the relief valve on the air pipe 455, so that the gas with high pressure in the gas storage tank 453 is discharged from the relief valve on the air pipe 455, the flow rate of the gas is increased, and the cleaning effect of the gas flow on the lower end surface of the upper die 5 is further enhanced.

Claims

1. A stamping device for door lock machining, comprising a support box (1), a support column (2), a hydraulic mechanism (3), a lower die seat (4), an upper die (5) and a control system (8), characterized in that: The L-shaped groove (41) is provided with a horizontal groove and a vertical groove, and a pushing mechanism (42) for pushing the waste adhered to the lower end face of the upper die (5) is movably arranged in the L-shaped groove (41). The power plate (421) is slidably arranged in the vertical groove of the L-shaped groove (41); The power block (422) is slidably arranged in the horizontal groove of the L-shaped groove (41), and the power block (422) is in sliding contact with the power plate (421); The pushing bar (423) is fixedly arranged at the bottom end of the power block (422) close to the side wall of the punching hole of the lower die seat (4); The side wall of the punching hole of the lower die seat (4) is provided with a jacking groove (43), and a reset mechanism (44) for reversely extruding the collapsed corner of the buckle hole is movably arranged in the jacking groove (43); The reset mechanism (44) comprises: The bottom ring (441) is slidably arranged in the jacking groove (43), and the bottom ends of the two sides are provided with inclined slopes (442), which are in sliding contact with the power block (422); The top ring (443) is fixedly connected to the upper end face of the bottom ring (441), and the outer side wall is in sliding sealing contact with the side wall of the punching hole of the lower die seat (4); The contact surface of the power plate (421) and the power block (422) and the contact surface of the inclined slope (442) and the power block (422) are inclined at an angle of 45°, and the length of the power plate (421) protruding from the vertical groove of the L-shaped groove (41) is the same as the distance from the upper end face of the top ring (443) to the upper end face of the lower die seat (4); The lower die seat (4) is provided with a cleaning mechanism for cleaning the lower end face of the upper die (5), and the cleaning mechanism comprises: The telescopic bag (451) is movably arranged outside the top ring (443), and the bottom end is fixedly connected to the top end of the bottom ring (441); A plurality of supporting springs (452) are arranged in the telescopic bag (451) for supporting the telescopic bag (451); The gas storage tank (453) is fixedly connected to the top end of the telescopic bag (451), and the top end is fixedly connected to the inner wall of the jacking groove (43), and the gas storage tank (453) is in communication with the telescopic bag (451) through the one-way valve I (454); A plurality of air pipes (455) are embeddedly arranged on both sides of the punching hole of the lower die seat (4), and the bottom end is in communication with the gas storage tank (453), and the top end is connected with a pressure relief valve towards the punching hole of the lower die seat (4); The telescopic pipe (456) is arranged in the bottom ring (441), and one end is in communication with the telescopic bag (451), and the other end penetrates through the bottom ring (441) and is in communication with the one-way valve II (457).

2. The door lock machining punch press device according to claim 1, characterized in that: The thickness of the top ring (443) is less than the gap between the side wall of the punching hole of the lower die seat (4) and the side wall of the upper die (5).

3. The stamping device for door lock machining according to claim 1, characterized in that: The gas storage tank (453) cannot be deformed by naked eye, and the maximum volume in the gas storage tank (453) remains unchanged.

4. The door lock machining punch press device according to claim 1, characterized in that: The pressure relief valve at the top end of the air pipe (455) tightly abuts against the top end of the top ring (443), and the top ring (443) moves upward to block the pressure relief valve on the air pipe (455).

5. The door lock machining punch press device according to claim 1, characterized in that: The flow direction of the one-way valve I (454) is from the telescopic bag (451) to the gas tank (453), and the flow direction of the one-way valve II (457) is from the outside to the telescopic bag (451).

6. The door lock machining punch press device according to claim 1, characterized in that: The contact surface of the power plate (421) and the power block (422) is embedded with a plurality of balls, and the contact surface of the slope (442) of the bottom ring (441) and the power block (422) is also embedded with a plurality of balls.

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