A stamping die for a door lock cylinder assembly

Abstract

The present invention relates to the technical field of door lock production, and particularly to a stamping die for a door lock core assembly. Aiming at the problem that the existing device cannot centrally collect lock pieces and waste materials after punching, a stamping die for a door lock core assembly is provided, which includes a punching base. An upper end of the punching base is provided with a punching cover capable of moving up and down. A top cover is provided at a lower end of the punching cover, and a pressing plate is provided at a lower end of the top cover. A punching tool is installed on the pressing plate. When the punching cover moves downward, it can drive the pressing plate to move downward to extrude and fix a steel strip. At the same time, the movement of the punching cover will drive the punching tool to move downward, so that it cooperates with a punching hole to punch out a required shape on the steel strip. A collecting device is arranged inside the punching base. When the punching cover moves downward, it can also make the processing box move in the circumferential direction while performing front-back oscillation. It can collect the punched lock pieces and waste materials, and can also polish the lock pieces to remove burrs to prevent workers from being pricked.

Description

Technical Field

[0001] The present invention relates to the technical field of door lock production, and particularly to a stamping die for a door lock cylinder assembly. Background Art

[0002] In the field of automobile manufacturing, the production quality of door lock cylinder assemblies has a direct impact on the safety and reliability of vehicle doors. As a key device in the production of door lock cylinder assemblies, the performance of stamping dies is crucial.

[0003] In the prior art, the publication number is: CN222220914U, and the name is: A stamping die for a quick-release lock cylinder. Although it solves the problem of stable stamping operation, it lacks a collection device. After the punching process is completed for most of the current stamping dies for door lock cylinder assemblies on the market, the punched lock pieces often directly fall around the die or on the workbench, without a special collection structure, resulting in the need for workers to spend a lot of time and effort on collection and sorting. This not only reduces production efficiency but also easily causes omission or damage of the lock pieces. Moreover, these dies only have the function of punching and forming, and cannot perform further grinding treatment on the lock pieces during the production process. There may be burrs on the surface of the punched lock pieces, which are likely to prick workers during subsequent collection or installation, increasing production costs and production cycles and making it difficult to meet the high-efficiency and high-quality production requirements of modern automobile manufacturing. Therefore, a stamping die for a door lock cylinder assembly is provided to solve the above problems. Summary of the Invention

[0004] The present invention aims at the problem that the existing devices cannot centrally collect the lock pieces and waste materials after punching. A stamping die for a door lock cylinder assembly is provided, which can collect the punched lock pieces and waste materials, and can also perform grinding treatment on the lock pieces to remove burrs and prevent pricking workers, effectively solving the problems mentioned in the above background art.

[0005] The technical solution adopted by the present invention to solve the above problems is as follows:

[0006] A stamping die for a door lock cylinder assembly includes a punching base. An upper end of the punching base is provided with a punching cover that can move up and down. A top cover is provided at a lower end of the punching cover, and a pressing plate is provided at a lower end of the top cover. A punching tool is installed on the pressing plate. A punching table is provided at an upper end of the punching base. A punching hole matching the punching tool is formed in the punching table. A steel strip is placed on the punching table. When the punching cover moves downward, it can drive the pressing plate to move downward to press and fix the steel strip. At the same time, the movement of the punching cover will drive the punching tool to move downward, so that it cooperates with the punching hole to punch out the required shape on the steel strip. A collection device is provided inside the punching base. The collection device includes a processing box. Abrasive is contained inside the processing box. A receiving box for receiving lock pieces is placed inside the processing box. When the punching cover moves downward, it can also move the processing box in a circumferential direction while performing front-back oscillation.

[0007] At the four end corners of the pressing plate, first guide rods are fixedly connected. The first guide rods are all slidably connected to the inner wall of the top cover. At the upper ends of the first guide rods, first anti - detachment pads are provided. On the outer surfaces of the first guide rods, first springs that cooperate with the pressing plate are sleeved. On both sides of the upper end surface of the pressing plate, retaining seats are also provided.

[0008] The punching tool includes a first punching tool and a second punching tool. The first punching tool and the second punching tool are both slidably connected to the inner wall of the pressing plate. The punching holes include a first punching hole and a second punching hole. The first punching hole is correspondingly arranged opposite to the first punching tool, and the second punching hole is correspondingly arranged opposite to the second punching tool.

[0009] At the rear end of the punching cover, a first straight rack that is slidably connected to the punching seat is fixedly connected. On the punching seat, a first straight gear that meshes with the first straight rack is rotatably connected. At the front end of the first straight gear, a main pulley is coaxially fixedly connected. At the lower end of the main pulley, a belt is connected to a secondary pulley. At the front ends of the main pulley and the secondary pulley, a connecting rod is hinged. The processing box is installed on the connecting rod.

[0010] At the front end of the connecting rod, a connecting seat is provided. Inside the inner wall of the connecting seat, two second guide rods are fixedly connected. The second guide rods are all slidably connected to the inner wall of the connecting rod. At the rear ends of the second guide rods, second anti - detachment pads are fixedly connected. On the outer surfaces of the second guide rods, second springs that cooperate with the connecting rod are sleeved. At the lower end of the connecting seat, a support plate is fixedly connected. The processing box is placed on the support plate.

[0011] Inside the inner wall of the connecting seat, a long pin is also fixedly connected. The long pin penetrates through the connecting rod and is slidably connected to the inner wall of the connecting rod. Inside the inner wall of the punching seat, a disk - shaped cam that cooperates with the long pin is fixedly connected.

[0012] The processing box and the support plate are in interference fit. When the support plate moves circumferentially and longitudinally, the processing box can move synchronously with the support plate. Inside the processing box, two receiving grooves are opened. The receiving boxes are placed in the corresponding receiving grooves. Filter holes are opened at the bottoms of the receiving boxes.

[0013] On one side of the punching seat, a feeding mechanism is provided. The feeding mechanism includes two feeding rollers that cooperate with the steel belt. When the first straight rack moves upward, a structure that can intermittently rotate the feeding rollers to drive the steel belt to move is provided.

[0014] At the rear end of the punching seat, a driving plate is slidably connected. On the first straight rack, a first sliding pin is fixedly connected. On the driving plate, an inclined slot and a vertical slot that cooperate with the first sliding pin are opened. On the driving plate, a second straight rack is fixedly connected. A double - sided gear meshes with the second straight rack. Inside the double - sided gear, a one - way transmission mechanism is provided. The one - way transmission mechanism is connected to one of the feeding rollers. On one side of the two feeding rollers, synchronizing gears that mesh with each other are coaxially fixedly connected.

[0015] The one-way transmission mechanism includes a drive shaft. A double-sided gear is rotatably connected to the drive shaft. An internal ratchet is provided on the inner wall of the double-sided gear. A drive disk is fixedly connected to the outer surface of the drive shaft. Two pawls that cooperate with the internal ratchet are hinged on the drive disk. An elastic sheet that cooperates with the pawls is also provided on the drive disk.

[0016] The present invention has the following advantages compared with the prior art:

[0017] When in use, when the punching cover moves downward, it can cause the pressing plate to move downward. When the pressing plate moves downward to a specified position, it can squeeze and fix the steel belt, so that the steel belt is fixed on the punching table. At the same time, when the punching cover continues to move downward, it can also cause the punching tool to move downward. With the cooperation of the punching tool and the punching hole, the required shape, that is, the lock piece, can be punched out on the steel belt. Through the provided collection device, that is, the treatment box and the receiving box, the punched lock pieces can fall into the receiving box under the action of gravity. The abrasive in the treatment box is used to polish the punched lock pieces. When the punching cover moves downward, it can also cause the treatment box to move in the circumferential direction and vibrate back and forth at the same time. Through multi-degree-of-freedom movement, the abrasive can roll and fully contact, flow and collide with the lock pieces, so as to polish the burrs of the lock pieces. This device can collect the punched lock pieces and waste materials, and can also polish the lock pieces, remove burrs to prevent workers from being pricked, and improve the assembly efficiency. Description of the Drawings

[0018] Figure 1 It is the first axonometric drawing of a stamping die for a door lock core assembly of the present invention.

[0019] Figure 2 It is the second axonometric drawing of a stamping die for a door lock core assembly of the present invention.

[0020] Figure 3 It is the installation schematic diagram of the pressing plate of a stamping die for a door lock core assembly of the present invention.

[0021] Figure 4 It is the installation schematic diagram of the punching tool of a stamping die for a door lock core assembly of the present invention.

[0022] Figure 5 It is the installation schematic diagram of the feeding roller of a stamping die for a door lock core assembly of the present invention.

[0023] Figure 6 It is the installation schematic diagram of the punching table of a stamping die for a door lock core assembly of the present invention.

[0024] Figure 7 It is the installation schematic diagram of the drive plate of a stamping die for a door lock core assembly of the present invention.

[0025] Figure 8Schematic diagram of the installation of the pawl of a stamping die for a door lock cylinder assembly of the present invention.

[0026] Figure 9 Schematic diagram of the installation of the main pulley of a stamping die for a door lock cylinder assembly of the present invention.

[0027] Figure 10 Schematic diagram of the installation of the support plate of a stamping die for a door lock cylinder assembly of the present invention.

[0028] Figure 11 Schematic diagram of the installation of the connecting rod of a stamping die for a door lock cylinder assembly of the present invention.

[0029] Figure 12 Schematic diagram of the installation of the long pin of a stamping die for a door lock cylinder assembly of the present invention.

[0030] Reference numerals in the figure: 1 - punching seat, 2 - punching cover, 3 - hydraulic rod, 4 - top cover, 5 - pressing plate, 6 - first guide rod, 7 - first anti - detachment pad, 8 - first spring, 9 - retaining seat, 10 - first punching tool, 11 - second punching tool, 12 - steel belt, 13 - punching table, 14 - first punching hole, 15 - second punching hole, 16 - first straight rack, 17 - guide plate, 18 - first sliding pin, 19 - driving plate, 20 - inclined slot, 21 - vertical slot, 22 - second straight rack, 23 - double - sided gear, 24 - driving shaft, 25 - driving disk, 26 - internal ratchet, 27 - pawl, 28 - elastic piece, 29 - driving straight gear, 30 - driven straight gear, 31 - feeding roller, 32 - first straight gear, 33 - main pulley, 34 - auxiliary pulley, 35 - connecting rod, 36 - connecting seat, 37 - second guide rod, 38 - second spring, 39 - second anti - detachment pad, 40 - long pin, 41 - disk - shaped cam, 42 - support plate, 43 - processing box, 44 - receiving box, 45 - lock piece. Detailed implementation manners

[0031] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0032] As Figures 1 - 12As shown in the figure, the present invention provides a stamping die for a door lock cylinder assembly, including a punching base 1. A punching cover 2 capable of moving up and down is provided at the upper end of the punching base 1. A top cover 4 is provided at the lower end of the punching cover 2, and a pressing plate 5 is provided at the lower end of the top cover 4. A punching tool is installed on the pressing plate 5. A punching table 13 is provided at the upper end of the punching base 1. A punching hole matching the punching tool is formed on the punching table 13. A steel strip 12 is placed on the punching table 13. When the punching cover 2 moves downward, it can drive the pressing plate 5 to move downward to squeeze and fix the steel strip 12. At the same time, the movement of the punching cover 2 will drive the punching tool to move downward, so that it cooperates with the punching hole to punch out the required shape on the steel strip 12. A collecting device is provided inside the punching base 1. The collecting device includes a processing box 43. Abrasive is contained inside the processing box 43. A receiving box 44 for receiving the lock piece 45 is placed inside the processing box 43. When the punching cover 2 moves downward, it can also make the processing box 43 move in the circumferential direction and vibrate back and forth at the same time.

[0033] As Figures 1 - 10 shown, the punching base 1 is used to support and install the entire stamping die. As Figure 1 shown, hydraulic rods 3 are respectively provided on both sides of the punching base 1. The punching cover 2 is fixedly connected to the hydraulic rods 3. When the hydraulic rods 3 expand and contract, they can drive the punching cover 2 to move up and down. The hydraulic rods 3 are of the prior art and will not be elaborated here. The top cover 4 is used to install the pressing plate 5, punching tool, etc. The punching holes formed on the punching table 13 correspond one by one to the punching tools. The steel strip 12 is the raw material for making the lock piece 45. When the punching cover 2 moves downward, it can make the pressing plate 5 move downward. When the pressing plate 5 moves downward to a specified position, it can squeeze and fix the steel strip 12, so that the steel strip 12 is fixed on the punching table 13. At the same time, when the punching cover 2 continues to move downward, it can also make the punching tool move downward. Under the cooperation of the punching tool and the punching hole, the required shape, that is, the lock piece 45, can be punched out on the steel strip 12. Through the provided collecting device, that is, the processing box 43 and the receiving box 44, the punched lock piece 45 can fall into the receiving box 44 under the action of gravity. The abrasive in the processing box 43 is used to polish the punched lock piece 45. When the punching cover 2 moves downward, it can also make the processing box 43 move in the circumferential direction and vibrate back and forth at the same time. Through multi-degree-of-freedom movement, the abrasive can roll and fully contact, flow and collide with the lock piece 45, so as to polish the burrs of the lock piece 45. This device can collect the punched lock piece 45 and waste materials, and can also polish the lock piece 45, remove burrs to prevent workers from being pricked, and improve the assembly efficiency.

[0034] First guide rods 6 are fixedly connected to the four end corners of the pressing plate 5. The first guide rods 6 are all slidably connected to the inner wall of the top cover 4. First anti-detachment pads 7 are provided at the upper ends of the first guide rods 6. First springs 8 matching the pressing plate 5 are sleeved on the outer surfaces of the first guide rods 6. Block seats 9 are also provided on both sides of the upper surface of the pressing plate 5.

[0035] As Figures 3 - 4As shown in the figure, the first guide rod 6 is slidably connected to the inner wall of the top cover 4 up and down, that is, the limiting pressure plate 5 can move up and down at the lower end of the top cover 4. The first anti-disengagement pad 7 is fixedly connected to the upper surface of the upper end of the first guide rod 6. By providing the first anti-disengagement pad 7, it can prevent the first guide rod 6 from disengaging from the top cover 4. The upper end of the first spring 8 is fixedly connected to the top cover 4, and the lower end of the first spring 8 is fixedly connected to the pressure plate 5. The first spring 8 always has a downward driving force on the pressure plate 5, so that the pressure plate 5 is in the lowest position of the top cover 4 under normal conditions. When the punching cover 2 and the top cover 4 move downward, they can drive the first guide rod 6, the first spring 8, the pressure plate 5, etc. to move downward synchronously. When the pressure plate 5 moves downward to contact the steel strip 12, the pressure plate 5 will squeeze and fix the steel strip 12. At this time, when the top cover 4 continues to move downward, it will further squeeze the first spring 8. At this time, the pressure plate 5 will have a downward driving force to further squeeze and fix the steel strip 12. When the top cover 4 continues to move downward, it will drive the punching tool to move downward continuously, that is, the punching tool will punch the steel strip 12 in cooperation with the punching hole. When the top cover 4 moves downward to contact the stop seat 9, the top cover 4 will no longer move downward under the block of the stop seat 9. At this time, the punching is completed. When the punching cover 2 and the top cover 4 move upward and reset, the corresponding pressure plate 5, the first spring 8, the punching tool, etc. will move upward and reset to the initial position. By providing the stop seat 9, it can limit the excessive downward movement of the top cover 4, thereby preventing the excessive squeezing of the first spring 8 and playing a role in protecting some components.

[0036] The punching tool includes a first punching tool 10 and a second punching tool 11. The first punching tool 10 and the second punching tool 11 are both slidably connected to the inner wall of the pressure plate 5. The punching holes include a first punching hole 14 and a second punching hole 15. The first punching hole 14 is correspondingly arranged with the first punching tool 10, and the second punching hole 15 is correspondingly arranged with the second punching tool 11.

[0037] As Figures 4 - 6 shown, the first punching tool 10 and the second punching tool 11 penetrate through the pressure plate 5 and are slidably connected to the inner wall of the pressure plate 5 up and down; the shape of the lock piece 45 is as Figure 5 shown. A rectangular hole is formed in the middle of the lock piece 45. It takes two punches to form the shape of the lock piece 45. During the first punch, by moving the first punching tool 10 downward, a plurality of rectangular holes can be punched out of the steel strip 12 in cooperation with the first punching hole 14. After the first punch is completed, by driving the steel strip 12 to move forward to a specified position. During the second punch, by moving the second punching tool 11 downward, a plurality of lock pieces 45 can be punched out of the steel strip 12 in cooperation with the second punching hole 15, and the punched remaining material rectangular pieces and the lock pieces 45 can fall into the material receiving box 44 under the action of gravity.

[0038] A first straight rack 16 fixedly connected to the rear end of the punching cover 2 is slidably connected to the punching base 1. A first straight gear 32 meshing with the first straight rack 16 is rotatably connected to the punching base 1. A main pulley 33 is coaxially and fixedly connected to the front end of the first straight gear 32. A secondary pulley 34 is drivingly connected to the lower end of the main pulley 33. A connecting rod 35 is hinged to the front ends of the main pulley 33 and the secondary pulley 34. The processing box 43 is mounted on the connecting rod 35.

[0039] As Figures 9 - 11 shown, the first straight rack 16 is fixedly connected to the punching cover 2 by bolts. When the punching cover 2 moves up and down, it can drive the first straight rack 16 to move up and down. The first straight rack 16 is also slidably connected to the punching base 1 up and down; the installation and shape of the first straight gear 32, the main pulley 33, and the secondary pulley 34 are as Figure 9 shown. A rotating shaft is fixedly connected to the centers of the main pulley 33 and the first straight gear 32. The rotating shaft is rotatably connected to the inner wall of the punching base 1. A rotating shaft is fixedly connected to the inner wall of the center of the secondary pulley 34. The rotating shaft is rotatably connected to the inner wall of the punching base 1, restricting the first straight gear 32, the main pulley 33, and the secondary pulley 34 to only rotate on the punching base 1; through the driving connection of the main pulley 33 and the secondary pulley 34, the main pulley 33 and the secondary pulley 34 can rotate synchronously. The installation and shape of the main pulley 33, the secondary pulley 34, and the connecting rod 35 are as Figure 11 shown. The connecting rod 35, the main pulley 33, and the secondary pulley 34 indirectly form a parallelogram mechanism. When the main pulley 33 and the secondary pulley 34 rotate synchronously, they can drive the connecting rod 35 to move in a circular motion, and make the connecting rod 35 always move in a circular motion in a vertical state, that is, the corresponding processing box 43 and the material receiving box 44 can always move in a circular motion in a vertical state, that is, the upper port of the material receiving box 44 is always vertically upward, and can continuously receive the punched lock pieces 45 and the waste materials; when the punching cover 2 moves downward, it can drive the first straight rack 16 to move downward. When the first straight rack 16 moves downward, through meshing with the first straight gear 32, it can drive the first straight gear 32, the main pulley 33, and the secondary pulley 34 to rotate synchronously, that is, drive the corresponding connecting rod 35, processing box 43, material receiving box 44, etc. to move in a circular motion. Through the up and down circular motion of the processing box 43 and the material receiving box 44, the abrasive in the processing box 43 can be continuously tumbling up and down, completely covering the lock pieces 45 in the material receiving box 44, increasing the contact area and improving the grinding effect.

[0040] A connecting seat 36 is provided at the front end of the connecting rod 35. Two second guide rods 37 are fixedly connected to the inner wall of the connecting seat 36. The second guide rods 37 are all slidably connected to the inner wall of the connecting rod 35. Second anti - detachment pads 39 are fixedly connected to the rear ends of the second guide rods 37. Second springs 38 cooperating with the connecting rod 35 are sleeved on the outer surfaces of the second guide rods 37. A support plate 42 is fixedly connected to the lower end of the connecting seat 36. The processing box 43 is placed on the support plate 42.

[0041] As Figures 10 - 12As shown in the figure, the second guide rod 37 passes through the connecting rod 35 and can slide back and forth on the inner wall of the connecting rod 35. By providing the second anti-disengagement pad 39, it can prevent the second guide rod 37 from disengaging from the connecting rod 35. One end of the second spring 38 is fixedly connected to the second anti-disengagement pad 39, and the other end of the second spring 38 is fixedly connected to the connecting rod 35. Under the self-elastic force of the second spring 38, it can push the second anti-disengagement pad 39 to have a backward driving force, so that the connecting seat 36 is in the rearmost position, that is, the connecting seat 36 is in the rearmost position under normal conditions and is in contact with the connecting rod 35; the support plate 42 is fixedly connected to the lower surface of the connecting seat 36. Through the connection of the support plate 42, the connecting seat 36 and the connecting rod 35, when the connecting rod 35 moves circularly, it can drive the second guide rod 37, the connecting seat 36, the support plate 42, the processing box 43, etc. to move circularly synchronously, and the support plate 42 and the connecting seat 36 can also slide back and forth on the connecting rod 35.

[0042] A long pin 40 is also fixedly connected to the inner wall of the connecting seat 36. The long pin 40 passes through the connecting rod 35 and is slidably connected to the inner wall of the connecting rod 35. A disc cam 41 that cooperates with the long pin 40 is fixedly connected to the inner wall of the punching seat 1.

[0043] As Figure 12 shown, the long pin 40 can slide back and forth on the inner wall of the connecting rod 35. When the connecting rod 35 moves circularly, it can drive the long pin 40 to move circularly. The disc cam 41 is set corresponding to the size of the circular movement of the long pin 40. When the long pin 40 moves circularly, under the engagement with the disc cam 41, it can make the long pin 40, the connecting seat 36, the support plate 42, the processing box 43, etc. move circularly and reciprocate back and forth, that is, it can continuously turn over and move the abrasive in the receiving box 44, so as to polish the lock pieces 45 in the receiving box 44; the installation and shape of the receiving box 44, the processing box 43, and the support plate 42 are as Figure 9 and Figure 10 shown. The processing box 43 and the support plate 42 are in an interference fit. When the support plate 42 moves circularly and back and forth, the processing box 43 will not disengage from the support plate 42; two receiving grooves are provided inside the processing box 43. The receiving box 44 is placed in the corresponding receiving groove. The bottom of the receiving box 44 is provided with filter holes. When the receiving box 44 is placed inside the processing box 43, the abrasive can enter the receiving box 44 through the filter holes. When a certain amount of lock pieces 45 in the receiving box 44 need to be taken out, through the provided filter holes, by continuously shaking during the taking-out process, the abrasive can flow into the processing box 43, so that the lock pieces 45 can be quickly separated from the abrasive and taken out. The other receiving box 44 and the receiving groove are used to receive the punched rectangular pieces. Cleaning liquid is added to the receiving groove to clean the punched rectangular pieces. The cleaned rectangular pieces are convenient for remelting and manufacturing again.

[0044] The processing box 43 and the pallet 42 are in interference fit. When the pallet 42 moves circumferentially and back and forth, the processing box 43 can move synchronously with the pallet 42. Two accommodation grooves are provided inside the processing box 43, and the material receiving box 44 is placed in the corresponding accommodation groove. Filter holes are provided at the bottom of the material receiving box 44.

[0045] As Figures 9 - 10 shown, the processing box 43 and the pallet 42 are in interference fit, that is, the processing box 43 can be disassembled, which is convenient for regularly replacing the abrasive. When the material receiving box 44 is placed inside the processing box 43, the abrasive can enter the material receiving box 44 through the filter holes. When the locking pieces 45 in the material receiving box 44 reach a certain amount and need to be taken out, by means of the provided filter holes and continuous shaking during taking out, the abrasive can flow into the processing box 43, so that the locking pieces 45 can be quickly separated from the abrasive and taken out. The other material receiving box 44 and the accommodation groove are used to receive the punched rectangular pieces. Cleaning liquid is added to the accommodation groove to clean the punched rectangular pieces, and the cleaned rectangular pieces are convenient for remelting and manufacturing again.

[0046] A feeding mechanism is provided on one side of the punching seat 1. The feeding mechanism includes two feeding rollers 31 that cooperate with the steel belt 12. When the first straight rack 16 moves upward, a structure that can intermittently rotate the feeding rollers 31 to drive the steel belt 12 to move is provided.

[0047] As Figures 5 - 7 shown, the steel belt 12 passes through the two feeding rollers 31 and is in contact with the feeding rollers 31. When the two feeding rollers 31 rotate, the steel belt 12 can be driven to move to a specified position, that is, punching processing is carried out. When the first straight rack 16 moves upward and resets, the feeding rollers 31 can be intermittently rotated, that is, the steel belt 12 is driven to move to a specified position. Since when the punching cover 2, the first straight rack 16, etc. move upward and reset, the corresponding pressure plate 5 and punching tool do not immediately separate from the steel belt 12, through the intermittent rotation of the feeding rollers 31, a certain amount of time can be provided so that after the pressure plate 5, the punching tool, etc. move upward to be completely separated from the steel belt 12, the feeding rollers 31 start to rotate, that is, the steel belt 12 is driven to move to a specified position to prevent movement interference.

[0048] A driving plate 19 is slidably connected to the rear end of the punching seat 1. A first sliding pin 18 is fixedly connected to the first straight rack 16. An inclined slot 20 and a vertical slot 21 that cooperate with the first sliding pin 18 are provided on the driving plate 19. A second straight rack 22 is fixedly connected to the driving plate 19. A double-sided gear 23 is engaged with the second straight rack 22. A one-way transmission mechanism is provided inside the double-sided gear 23, and the one-way transmission mechanism is connected to one of the feeding rollers 31. Synchronous gears that mesh with each other are coaxially fixedly connected to one side of the two feeding rollers 31.

[0049] As Figure 7As shown in the figure, the drive plate 19 is slidably connected to the rear surface of the punching base 1 in the left-right direction. A guide plate 17 is fixedly connected to the first straight rack 16, and a first sliding pin 18 is fixedly connected to the guide plate 17. That is, the first sliding pin 18 is fixedly connected to the first straight rack 16. When the first straight rack 16 moves up and down, it can drive the first sliding pin 18 to move up and down. When the first straight rack 16, the first sliding pin 18, etc. move from top to bottom, the drive plate 19 can be driven to move leftward through the engagement of the first sliding pin 18 with the inclined groove 20. When the first sliding pin 18 moves downward to disengage from the inclined groove 20 and enters the inner wall of the vertical groove 21, at this time, when the first sliding pin 18 continues to move downward, it will no longer make the drive plate 19 move leftward, and the corresponding drive plate 19 moves to the leftmost position and is in a static state. Similarly, when the first sliding pin 18 moves from bottom to top, under the engagement of the first sliding pin 18 with the vertical groove 21, the corresponding drive plate 19 will not immediately move rightward to reset. When the first sliding pin 18 moves upward to enter the inner wall of the inclined groove 20, at this time, the drive plate 19 can move rightward to reset; As Figure 5 and Figure 6 shown, a support frame is also fixedly connected to one side of the punching base 1. A rotating shaft is fixedly connected to the center of the feeding roller 31 and the synchronous gear. The rotating shaft is rotatably connected to the support frame. That is, the limiting feeding roller 31 and the synchronous gear can only rotate on the support frame; As Figure 5 shown, the synchronous gear includes a driving straight gear 29 and a driven straight gear 30. The driving straight gear 29 and the driven straight gear 30 are meshed with each other. That is, when one corresponding feeding roller 31 rotates, through the engagement of the driving straight gear 29 and the driven straight gear 30, the other feeding roller 31 can be driven to rotate, and the rotation directions of the two feeding rollers 31 are opposite, which can drive the steel belt 12 to move under the action of friction. There is a certain friction between the rotating shaft and the support frame, and the feeding roller 31 will not rotate under normal conditions.

[0050] The one-way transmission mechanism includes a driving shaft 24. A double-sided gear 23 is rotatably connected to the driving shaft 24. An internal ratchet 26 is provided on the inner wall of the double-sided gear 23. A driving disk 25 is fixedly connected to the outer surface of the driving shaft 24. Two pawls 27 that cooperate with the internal ratchet 26 are hinged on the driving disk 25. An elastic piece 28 that cooperates with the pawl 27 is also provided on the driving disk 25.

[0051] As Figure 8As shown in the figure, the drive shaft 24 is rotatably connected to the support frame and has a certain frictional force with the support frame to limit the rotation of the drive shaft 24 under normal conditions. A corresponding feeding roller 31 is fixedly connected to the outer surface of the drive shaft 24. The elastic piece 28 always has an outward elastic force on the pawl 27, enabling the pawl 27 to engage with the internal ratchet wheel 26. With the mutual cooperation of the internal ratchet wheel 26 and the pawl 27 provided, when the punching cover 2 moves downward to make the drive plate 19 move leftward, the second straight rack 22 can be made to move leftward and engage the double-sided gear 23 to rotate. When the double-sided gear 23 rotates, relative sliding can occur between the internal ratchet wheel 26 and the pawl 27, that is, the corresponding drive shaft 24 and the feeding roller 31 will not rotate. When the punching cover 2 moves upward to make the drive plate 19 move rightward, the second straight rack 22 can be made to move rightward, that is, the corresponding double-sided gear 23 rotates and the internal ratchet wheel 26 can engage with the pawl 27, causing the pawl 27 and the drive shaft 24 to rotate, that is, the feeding roller 31 rotates, and the steel belt 12 moves to the specified position. With the mutual cooperation of the second straight rack 22, the double-sided gear 23, the one-way transmission mechanism and the feeding roller 31 provided, when the punching cover 2, the first spur gear 32, and the first sliding pin 18 move downward from top to bottom, that is, when the corresponding drive plate 19 moves leftward, the feeding roller 31 will not rotate. At this time, the punching cover 2 moves downward, and the punching tool punches the steel belt 12. When the punching cover 2, the first spur gear 32, the first sliding pin 18, etc. move upward from bottom to top, the corresponding drive plate 19 will not immediately move rightward and reset under the engagement of the first sliding pin 18 and the vertical groove 21. When the punching cover 2, the pressing plate 5, the punching tool, etc. move upward to be completely separated from the steel belt 12, the first sliding pin 18 can move upward to enter the inner wall of the inclined groove 20. At this time, the drive plate 19 can move rightward and reset, and the corresponding feeding roller 31 can rotate, that is, the steel belt 12 can be driven to move to the next processing position.

[0052] When the present invention is in use, when the punching cover 2 moves downward, the pressing plate 5 can be made to move downward. When the pressing plate 5 moves downward to the specified position, it can squeeze and fix the steel belt 12, fixing the steel belt 12 on the punching table 13. At the same time, when the punching cover 2 continues to move downward, the punching tool can be made to move downward. With the cooperation of the punching tool and the punching hole, the required shape, that is, the lock piece 45, can be punched out on the steel belt 12. With the collection device provided, that is, the processing box 43 and the material receiving box 44, the punched lock piece 45 can fall into the material receiving box 44 under the action of gravity. The abrasive in the processing box 43 is used to polish the punched lock piece 45. When the punching cover 2 moves downward, the processing box 43 can be made to move in the circumferential direction and vibrate back and forth at the same time. Through multi-degree-of-freedom movement, the abrasive can tumble and fully contact, flow and collide with the lock piece 45, thereby polishing the burrs of the lock piece 45. This device can collect the punched lock piece 45 and the remaining material, and can also polish the lock piece 45 to remove burrs to prevent workers from being pricked and improve the assembly efficiency.

Claims

1. A stamping die for a door lock cylinder assembly, comprising a punching seat (1), characterized in that: The upper end of the punching seat (1) is provided with a punching cover (2) capable of moving up and down. The lower end of the punching cover (2) is provided with a top cover (4), and the lower end of the top cover (4) is provided with a pressing plate (5). A punching tool is installed on the pressing plate (5). The upper end of the punching seat (1) is provided with a punching table (13), and a punching hole matching the punching tool is formed in the punching table (13). A steel strip (12) is placed on the punching table (13). When the punching cover (2) moves downward, it can drive the pressing plate (5) to move downward to press and fix the steel strip (12). At the same time, the movement of the punching cover (2) will drive the punching tool to move downward, so that it cooperates with the punching hole to punch out the required shape on the steel strip (12). A collecting device is arranged inside the punching seat (1). The collecting device includes a processing box (43). Abrasives are installed inside the processing box (43). A receiving box (44) for receiving lock pieces (45) is placed inside the processing box (43). When the punching cover (2) moves downward, it can also make the processing box (43) move in the circumferential direction and vibrate back and forth at the same time. The punching tool includes a first punching tool (10) and a second punching tool (11). Both the first punching tool (10) and the second punching tool (11) are slidably connected to the inner wall of the pressing plate (5). The punching holes include a first punching hole (14) and a second punching hole (15). The first punching hole (14) is arranged corresponding to the first punching tool (10), and the second punching hole (15) is arranged corresponding to the second punching tool (11). A first straight rack (16) slidably connected to the punching seat (1) is fixedly connected to the rear end of the punching cover (2). A first straight gear (32) meshing with the first straight rack (16) is rotatably connected to the punching seat (1). A main pulley (33) is coaxially fixedly connected to the front end of the first straight gear (32). A secondary pulley (34) is drivingly connected to the lower end of the main pulley (33). A connecting rod (35) is hinged to the front ends of the main pulley (33) and the secondary pulley (34). The processing box (43) is installed on the connecting rod (35). A feeding mechanism is arranged on one side of the punching seat (1). The feeding mechanism includes two feeding rollers (31) cooperating with the steel strip (12), and a structure capable of intermittently rotating the feeding rollers (31) to drive the steel strip (12) to move when the first straight rack (16) moves upward. A driving plate (19) is slidably connected to the rear end of the punching seat (1). A first sliding pin (18) is fixedly connected to the first straight rack (16). An inclined slot (20) and a vertical slot (21) matching the first sliding pin (18) are formed in the driving plate (19). A second straight rack (22) is fixedly connected to the driving plate (19). A double-sided gear (23) is meshed with the second straight rack (22). A one-way transmission mechanism is arranged inside the double-sided gear (23), and the one-way transmission mechanism is connected to one of the feeding rollers (31). Synchronous gears meshing with each other are coaxially fixedly connected to one side of the two feeding rollers (31).

2. The stamping die for a door lock cylinder assembly according to claim 1, characterized in that: At four end corners of the pressing plate (5), first guide rods (6) are fixedly connected. The first guide rods (6) are all slidably connected to the inner wall of the top cover (4). At the upper ends of the first guide rods (6), first anti - detachment pads (7) are provided. On the outer surfaces of the first guide rods (6), first springs (8) which cooperate with the pressing plate (5) are sleeved. On both sides of the upper - end surface of the pressing plate (5), retaining seats (9) are also provided.

3. The stamping die for a door lock cylinder assembly as claimed in claim 1, wherein: At the front end of the connecting rod (35), a connecting seat (36) is provided. Inside the inner wall of the connecting seat (36), two second guide rods (37) are fixedly connected. The second guide rods (37) are all slidably connected to the inner wall of the connecting rod (35). At the rear ends of the second guide rods (37), second anti - detachment pads (39) are fixedly connected. On the outer surfaces of the second guide rods (37), second springs (38) which cooperate with the connecting rod (35) are sleeved. At the lower end of the connecting seat (36), a support plate (42) is fixedly connected. The processing box (43) is placed on the support plate (42).

4. The stamping die for a door lock cylinder assembly according to claim 3, characterized in that: Inside the inner wall of the connecting seat (36), a long pin (40) is also fixedly connected. The long pin (40) penetrates through the connecting rod (35) and is slidably connected to the inner wall of the connecting rod (35). Inside the inner wall of the punching seat (1), a disc - shaped cam (41) which cooperates with the long pin (40) is fixedly connected.

5. The stamping die for a door lock cylinder assembly according to claim 1, characterized in that: The processing box (43) and the support plate (42) are in interference fit. When the support plate (42) moves circumferentially and back - and - forth, the processing box (43) can move synchronously with the support plate (42). Inside the processing box (43), two receiving grooves are formed. The material receiving boxes (44) are placed in the corresponding receiving grooves. Filter holes are formed at the bottoms of the material receiving boxes (44).

6. The stamping die for a door lock cylinder assembly according to claim 1, wherein: The one - way transmission mechanism includes a driving shaft (24). A double - sided gear (23) is rotatably connected to the driving shaft (24). An internal ratchet (26) is formed inside the inner wall of the double - sided gear (23). On the outer surface of the driving shaft (24), a driving disc (25) is fixedly connected. Two pawls (27) which cooperate with the internal ratchet (26) are hinged to the driving disc (25). On the driving disc (25), an elastic sheet (28) which cooperates with the pawl (27) is also provided.

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