Automobile accessory stamping device and method of use

Abstract

The present application relates to the field of stamping, and discloses a stamping device for automobile accessories, which comprises guide columns arranged on a frame, a female die seat and a male die seat in sliding connection with the guide columns, a female die arranged on the upper surface of the female die seat, and a male die arranged on the lower surface of the male die seat, wherein a hydraulic cylinder for moving the male die seat and a power source for intermittently moving the female die seat upward are arranged on the frame, the power source comprises a driving shaft and a transmission shaft, a flywheel is arranged on the outer portion of the driving shaft, the lower end of the transmission shaft is movably connected with the upper end of the driving shaft, the upper end of the transmission shaft is connected with the frame, a coil spring is arranged at the connection position, a jacking piece is arranged on the lower surface of the female die seat, the jacking piece is connected with the upper end of the transmission shaft through a power transmission piece, the driving shaft is connected with the transmission shaft through a connecting assembly, and the connecting assembly is arranged to switch between a connection state with a complete power transmission route and a cut-off state with a disconnected power transmission route.

Description

Technical Field

[0001] This invention relates to the field of stamping, specifically to the field of automotive parts stamping, and particularly to an automotive parts stamping apparatus and its method of use. Background Technology

[0002] Stamping of automotive parts refers to a metal processing technology that uses a press and dies to apply external force to metal sheets (such as steel or aluminum sheets), causing them to undergo plastic deformation or separation, thereby obtaining automotive parts with the required shape, size, and precision. It is one of the most widely used and important manufacturing technologies in automobile manufacturing. More than 70% of the metal parts in a typical car, including the body, chassis, and structural components, are produced through stamping.

[0003] Stamping equipment includes a power source and a die (punch and die). The material is placed between the punch and die, and then the power source drives the punch to move down, applying pressure to the material, causing it to be stretched, bent, sheared or squeezed under the action of the die, and finally forming a part that conforms to the die cavity.

[0004] Intermittent stamping is a stamping process in which the stamping action is paused at set intervals. It offers advantages such as improved quality and precision of stamped parts, extended die life, increased process flexibility and energy efficiency, and adaptability to complex contours and thick plates. Since stamping technology generally uses hydraulic technology as its power source, achieving intermittent stamping requires control software to break down a long stroke into multiple short strokes. The hydraulic system generates significant intermittent thrust during stamping, necessitating precise coordination between the controller, signal conversion, high-frequency response hydraulic valves, and high- and low-pressure accumulators. Interference in any of these components will affect the quality of the final stamping result; in other words, it is susceptible to interference from numerous factors.

[0005] Based on the above, the present invention proposes a stamping device for automotive parts and a method of using it. Summary of the Invention

[0006] To address the problems mentioned in the background above, the present invention provides a stamping device for automotive parts and a method for using it.

[0007] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows.

[0008] A stamping device for automotive parts includes a frame and a die. The frame is provided with vertically arranged guide pillars. The die includes a die holder and a punch holder that are slidably connected to the guide pillars. The upper surface of the die holder is provided with a die and the lower surface of the punch holder is provided with a punch.

[0009] The frame is also equipped with a hydraulic cylinder for moving the punch seat and a power source for intermittently moving the die seat upwards.

[0010] As a further improvement and optimization of the present invention, the power source includes a drive shaft and a transmission shaft;

[0011] The centerline of the drive shaft coincides with the centerline of the die, and a flywheel is provided on the outside of the drive shaft;

[0012] The lower end of the transmission shaft is coaxially and movably connected to the upper end of the drive shaft. The upper end of the transmission shaft is movably connected to the frame and a coil spring is provided at the connection. A lifting component is provided on the lower surface of the die holder. The lifting component and the upper end of the transmission shaft are connected by a power transmission component. The drive shaft and the transmission shaft are connected by a connecting component. The connecting component is configured to switch between a connected state and a disconnected state. When the connecting component is in the connected state, it is used to realize the power connection between the drive shaft and the transmission shaft. When the connecting component is in the disconnected state, the power transmission path of the connecting component is disconnected.

[0013] As a further improvement and optimization of the present invention, a ratchet and pawl assembly is provided on the outside of the drive shaft. The outer ring of the ratchet and pawl assembly is connected to a motor, and the ratchet and pawl assembly is used to transmit the power of the motor to the drive shaft in one direction.

[0014] As a further improvement and optimization of the present invention, the lifting member includes a threaded sleeve arranged vertically and disposed on the lower surface of the die holder, and a threaded shaft mounted on the frame. The threaded shaft and the threaded sleeve form a threaded connection, and the lower end of the threaded shaft is connected to the driven member of the power transmission member.

[0015] As a further improvement and optimization of the present invention, the connecting component includes a lower transfer ring, an upper transfer ring, and a driving component;

[0016] The lower transmission ring is mounted on the upper end of the drive shaft via a lower connector, and when the lower transmission ring moves on the drive shaft, the drive shaft continuously outputs power to the lower transmission ring via the lower connector.

[0017] The upper transmission ring is mounted on the lower end of the transmission shaft via the upper connector, and when the upper transmission ring moves on the transmission shaft, the upper transmission ring continuously outputs power to the transmission shaft via the upper connector;

[0018] The lower surface of the upper transfer ring has an upper protrusion, and the upper surface of the lower transfer ring has a lower protrusion. When the lower transfer ring is driven to move upward by the driving component, the lower protrusion can move upward and approach the upper transfer ring. At this time, when the lower transfer ring rotates, the lower protrusion pushes against the upper protrusion, and the upper transfer ring rotates together.

[0019] As a further improvement and optimization of the present invention, the lower connector includes a lower external spline disposed on the drive shaft and a lower internal spline disposed on the lower transmission ring, and the upper connector includes a lower external spline disposed on the transmission shaft and a lower internal spline disposed on the upper transmission ring.

[0020] As a further improvement and optimization of the present invention, the distance between the two sides of the lower protrusion along the circumferential direction of the lower transmission ring decreases from bottom to top.

[0021] As a further improvement and optimization of the present invention, the driving component includes a cylinder and a vertically arranged guide rod;

[0022] A bracket is slidably mounted on the outside of the guide rod, and the bracket is movably connected to the lower transmission ring. A spring II is sleeved on the outside of the guide rod above the bracket.

[0023] A cylinder includes a cylinder shell and a piston rod arranged vertically;

[0024] The cylinder shell is fitted with a main piston and an auxiliary piston located above the main piston. The end face of the main piston is provided with a lower through hole, and the end face of the auxiliary piston is provided with an upper through hole. The lower end of the piston rod is located below the main piston and is provided with a limit ring. The upper end of the piston rod passes through the lower through hole and the upper through hole and extends out of the cylinder shell and is connected to the bracket. The piston rod has a shoulder on its outside and the shoulder abuts against the upper surface of the auxiliary piston.

[0025] A spring is fitted outside the piston rod between the main piston and the auxiliary piston. The spring force coefficient of spring one is greater than that of spring two.

[0026] A method of using a stamping device for automotive parts:

[0027] Step 1: Place the material on the die, and then use a hydraulic cylinder to drive the punch seat to move down, and move the punch down with it to achieve the initial stamping of the material;

[0028] Step 2: After the initial stamping is completed, the hydraulic cylinder stops running, and the pre-stored flywheel drives the drive shaft to rotate continuously. At the same time, air enters the cylinder shell, causing the main piston, auxiliary piston, piston rod, bracket, and lower transmission ring to move upward. Spring 2 is compressed. The upward movement of the lower transmission ring can cause the lower protrusion to move upward and approach the upper transmission ring. At this time, when the lower transmission ring rotates, it pushes against the upper protrusion through the lower protrusion and causes the upper transmission ring to rotate together. The upper transmission ring drives the input end of the lifting component to rotate through the transmission shaft and power transmission component, thereby causing the die holder and the die to move upward together, thus completing one stamping action.

[0029] Because the lower protrusion is arranged at an angle, during the stamping action, the lower protrusion and the lower transmission ring move downwards. Once the spring is compressed, after the lower protrusion moves down to the point where it loses contact with the upper protrusion, the spring releases its elastic force, pushing the lower protrusion upwards. Then, the lower protrusion will contact the upper protrusion again and push it to rotate together, performing the next stamping action. This process is repeated to achieve the purpose of intermittent stamping.

[0030] Compared with the prior art, the beneficial effects of this invention are as follows:

[0031] In this case, during the secondary stamping stage, the energy accumulated by the flywheel is sequentially transmitted to the threaded shaft through the drive shaft, connecting assembly, transmission shaft, and power transmission component, causing it to rotate and thus driving the die holder to move upward. Furthermore, the inclined surface of the lower protrusion on the lower transmission ring in the connecting assembly cooperates with the upper protrusion on the upper transmission ring to achieve intermittent power transmission, thereby causing the die holder to move upward intermittently, ultimately achieving the purpose of intermittent stamping. Compared with existing hydraulic technologies that achieve intermittent stamping through the cooperation of multiple modules, the intermittent stamping operation in this case is simpler, more convenient, and more reliable. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the present invention;

[0033] Figure 2 This is a front view of the present invention;

[0034] Figure 3 This is a schematic diagram of the power source and the die holder;

[0035] Figure 4 This is a schematic diagram of the connecting components, drive shaft, and transmission shaft.

[0036] Figure 5 A sectional view of the connecting components, drive shaft, and transmission shaft;

[0037] Figure 6 This is a front view of the lower transfer loop;

[0038] Figure 7 A sectional view of the transfer shaft, lifting components, and die holder;

[0039] Figure 8 This is an exploded view of the lifting component.

[0040] The labels in the attached diagram are:

[0041] 100. Frame; 101. Guide post; 102. Die cavity; 103. Die cavity base; 104. Punch; 105. Punch base; 106. Hydraulic cylinder; 200. Power source; 201. Motor; 202. Flywheel; 203. Drive shaft; 204. Ratchet and pawl assembly; 205. Transmission shaft; 206. Drive component; 2061. Cylinder housing; 2062. Main piston; 2063. Secondary piston; 2064. Piston rod; 2065. Spring 1; 2066. Bracket; 2067. Guide rod; 2068. Spring 2; 207. Lower transmission ring; 2071. Lower protrusion; 208. Upper transmission ring; 2081. Upper protrusion; 209. Coil spring; 210. Power transmission component; 211. Lifting component; 2111. Threaded sleeve; 2112. Threaded shaft. Detailed Implementation

[0042] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0043] Reference Figure 1 and Figure 2 An automotive parts stamping device includes a frame 100 and a mold, wherein vertically arranged guide posts 101 are provided on the frame 100.

[0044] The mold includes a die holder 103 and a punch holder 105 that are slidably connected to the guide post 101. The upper surface of the die holder 103 is provided with a die 102, and the lower surface of the punch holder 105 is provided with a punch 104. In addition, the frame 100 is also provided with a hydraulic cylinder 106 for driving the punch holder 105 to move and a power source 200 for driving the die holder 103 to move.

[0045] In use, the material is placed on the die 102, and then the hydraulic cylinder 106 drives the punch seat 105 to move downward, along with the punch 104, to achieve the initial stamping of the material. When the stamping process is nearing its end, the hydraulic cylinder 106 stops running, and the power source 200 starts, driving the die seat 103 to move upward, along with the die 102, to achieve the secondary stamping of the material, until the stamping is completed. During the secondary stamping process, the upward movement of the die seat 103 driven by the power source 200 is intermittent, thereby achieving the purpose of intermittent stamping. Compared with the existing hydraulic technology that uses multiple modules to achieve intermittent stamping, the intermittent stamping operation of this invention is simpler and more convenient.

[0046] Reference Figures 2-8 The power source 200 includes a drive shaft 203 and a transmission shaft 205.

[0047] The centerline of the drive shaft 203 coincides with the centerline of the die 102. A flywheel 202 is provided on the outside of the drive shaft 203. When the flywheel 202 rotates together with the drive shaft 203, it can play an energy storage role.

[0048] The lower end of the transmission shaft 205 is coaxially and movably connected to the upper end of the drive shaft 203. The upper end of the transmission shaft 205 is movably connected to the frame 100, and a coil spring 209 is provided at the connection. A lifting member 211 is provided on the lower surface of the die holder 103. The lifting member 211 and the upper end of the transmission shaft 205 are connected by a power transmission member 210. The drive shaft 203 and the transmission shaft 205 are connected by a connecting assembly. The connecting assembly is configured to switch between a connected state and a disconnected state. When it is in the connected state, it is used to realize the power connection between the drive shaft 203 and the transmission shaft 205. When it is in the disconnected state, the power connection is broken.

[0049] Rotation of drive shaft 203: Refer to Figure 2 and Figure 3 The drive shaft 203 is provided with a ratchet and pawl assembly 204. The outer ring of the ratchet and pawl assembly 204 is connected to a motor 201. The ratchet and pawl assembly 204 is used to transmit the power of the motor 201 to the drive shaft 203 in one direction. That is, when the motor 201 drives the drive shaft 203 to rotate, the flywheel 202 stores energy. When the motor 201 stops rotating, the drive shaft 203 continues to rotate under the inertia of the flywheel 202. However, at this time, the force generated by the rotation of the drive shaft 203 will not be transmitted to the motor 201 in the opposite direction.

[0050] Lifting component 211: Refer to Figure 7 and Figure 8 The lifting member 211 includes a threaded sleeve 2111 arranged vertically and disposed on the lower surface of the die holder 103, and a threaded shaft 2112 mounted on the frame 100. The threaded shaft 2112 and the threaded sleeve 2111 form a threaded connection. The lower end of the threaded shaft 2112 is connected to the driven member of the power transmission member 210. Therefore, when the transmission shaft 205 rotates, the threaded shaft 2112 will be driven to rotate through the power transmission member 210, thereby causing the threaded sleeve 2111 to move. The threaded sleeve 2111 moves together with the die holder 103.

[0051] Connection components: See Figures 4-6 The connecting components include a lower transfer ring 207 and an upper transfer ring 208.

[0052] The lower transmission ring 207 is mounted on the upper end of the drive shaft 203 via a lower connector. When the lower transmission ring 207 moves on the drive shaft 203, the drive shaft 203 continuously outputs power to the lower transmission ring 207 via the lower connector. Furthermore, the lower connector includes a lower external spline on the drive shaft 203 and a lower internal spline on the lower transmission ring 207.

[0053] The upper transmission ring 208 is mounted on the lower end of the transmission shaft 205 via the upper connector. When the upper transmission ring 208 moves on the transmission shaft 205, the upper transmission ring 208 continuously outputs power to the transmission shaft 205 via the upper connector. Furthermore, the upper connector includes a lower external spline on the transmission shaft 205 and a lower internal spline on the upper transmission ring 208.

[0054] The lower surface of the upper transmission ring 208 extends with an upper protrusion 2081, and the upper surface of the lower transmission ring 207 extends with a lower protrusion 2071. When the lower transmission ring 207 is driven to move upward by the driving member 206, the lower protrusion 2071 can move upward and approach the upper transmission ring 208. At this time, when the lower transmission ring 207 rotates, the lower protrusion 2071 pushes against the upper protrusion 2081, thereby causing the upper transmission ring 208 to rotate together.

[0055] Furthermore, the distance between the two sides of the lower protrusion 2071 along the circumferential direction of the lower transmission ring 207 decreases from bottom to top.

[0056] Furthermore, refer to Figure 5 The drive unit 206 includes a cylinder and a vertically arranged guide rod 2067.

[0057] A bracket 2066 is slidably mounted on the outside of the guide rod 2067. The bracket 2066 is movably connected to the lower transmission ring 207, for example, through a bearing. A spring 2068 located above the bracket 2066 is sleeved on the outside of the guide rod 2067.

[0058] The cylinder includes a vertically arranged cylinder shell 2061 and a piston rod 2064.

[0059] The cylinder shell 2061 is fitted with two pistons, namely the main piston 2062 located below and the auxiliary piston 2063 located above. The end face of the main piston 2062 is provided with a lower through hole, and the end face of the auxiliary piston 2063 is provided with an upper through hole.

[0060] The lower end of the piston rod 2064 is located below the main piston 2062 and is provided with a limit ring. The upper end of the piston rod 2064 passes through the lower through hole and the upper through hole and extends out of the cylinder shell 2061 and is connected to the bracket 2066. The piston rod 2064 has a shoulder on its outside and the shoulder abuts against the upper surface of the auxiliary piston 2063.

[0061] A spring 2065 is sleeved on the outside of the piston rod 2064, located between the main piston 2062 and the auxiliary piston 2063. The elastic coefficient of the spring 2065 is much greater than that of the spring 2068.

[0062] The cylinder shell 2061 has an air nozzle on its outer surface, which is located near the bottom of the cylinder shell 2061.

[0063] Working principle of the invention:

[0064] In use, the material is placed on the die cavity 102, and then the hydraulic cylinder 106 drives the punch seat 105 to move downward, along with the punch 104, to achieve the initial stamping of the material. Near the end of the stamping process, the hydraulic cylinder 106 stops operating, and the power source 200 starts, driving the die cavity 103 to move upward, along with the die cavity 102, to achieve the secondary stamping of the material, until the stamping is complete. During the secondary stamping process, the upward movement of the die cavity 103 driven by the power source 200 is intermittent, thus achieving the purpose of intermittent stamping. Specifically:

[0065] Before the second stamping, the motor 201 drives the drive shaft 203 to rotate, and the flywheel 202 stores energy. When the second stamping begins, the motor 201 stops, and air enters the cylinder shell 2061 through the air nozzle, causing the main piston 2062, the auxiliary piston 2063, the piston rod 2064, the bracket 2066, and the lower transmission ring 207 to move upward. The second spring 2068 is compressed. It should be noted that during this process, although the elastic coefficient of the first spring 2065 is much greater than that of the second spring 2068, the first spring 2065 will also be slightly compressed, which does not have an impact.

[0066] The upward movement of the lower transmission ring 207 causes the lower protrusion 2071 to move upward and approach the upper transmission ring 208. At this time, when the lower transmission ring 207 rotates, it pushes against the upper protrusion 2081 through the lower protrusion 2071, causing the upper transmission ring 208 to rotate as well. The upper transmission ring 208 drives the threaded shaft 2112 to rotate via the transmission shaft 205 and the power transmission component 210, thereby causing the threaded sleeve 2111 to move upward, and bringing the die holder 103 and the die 102 upward together, thus completing one stamping operation. Due to the large stamping force, and Because the side of the lower protrusion 2071 is arranged at an angle, during the stamping action, the lower protrusion 2071 and the lower transmission ring 207 will move downward, and the spring 2065 will be compressed. When the lower protrusion 2071 moves down to the point where it is no longer in contact with the upper protrusion 2081, the spring 2065 releases its elastic force and pushes the lower protrusion 2071 up. Then, the lower protrusion 2071 will contact the upper protrusion 2081 again and push it to rotate together to perform the next stamping action. This process is repeated to achieve the purpose of intermittent stamping.

[0067] After the stamping is completed, the pressure applied by the power source 200 and the hydraulic cylinder 106 is removed. Then, the coil spring 209 releases its elastic force to move the lifting member 211 and the die holder 103 down to reset.

[0068] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A stamping apparatus for automotive parts, comprising a frame (100) and a die, wherein the frame (100) is provided with vertically arranged guide pillars (101), characterized in that, The mold includes a die holder (103) and a punch holder (105) that are slidably connected to the guide post (101). The upper surface of the die holder (103) is provided with a die (102), and the lower surface of the punch holder (105) is provided with a punch (104). The frame (100) is also provided with a hydraulic cylinder (106) for moving the punch (105) and a power source (200) for intermittently moving the die (103).

2. The stamping device for automotive parts according to claim 1, characterized in that, The power source (200) includes a drive shaft (203) and a transmission shaft (205); The centerline of the drive shaft (203) coincides with the centerline of the die (102), and a flywheel (202) is provided on the outside of the drive shaft (203). The lower end of the transmission shaft (205) is coaxially and movably connected to the upper end of the drive shaft (203). The upper end of the transmission shaft (205) is movably connected to the frame (100) and a coil spring (209) is provided at the connection. A lifting member (211) is provided on the lower surface of the die holder (103). The lifting member (211) and the upper end of the transmission shaft (205) are connected by a power transmission member (210). The drive shaft (203) and the transmission shaft (205) are connected by a connecting component. The connecting component is configured to switch between a connected state and a disconnected state. The connecting component in the connected state is used to realize the power connection between the drive shaft (203) and the transmission shaft (205). The power transmission route of the connecting component in the disconnected state is disconnected.

3. The stamping device for automotive parts according to claim 2, characterized in that, The drive shaft (203) is provided with a ratchet and pawl assembly (204) on its outside. The outer ring of the ratchet and pawl assembly (204) is connected to a motor (201). The ratchet and pawl assembly (204) is used to transmit the power of the motor (201) to the drive shaft (203) in one direction.

4. The stamping device for automotive parts according to claim 2, characterized in that, The lifting component (211) includes a threaded sleeve (2111) arranged vertically and disposed on the lower surface of the die holder (103) and a threaded shaft (2112) mounted on the frame (100). The threaded shaft (2112) and the threaded sleeve (2111) form a threaded connection. The lower end of the threaded shaft (2112) is connected to the driven part of the power transmission component (210).

5. The stamping device for automotive parts according to claim 2, characterized in that, The connecting components include a lower transfer ring (207), an upper transfer ring (208), and a drive unit (206). The lower transmission ring (207) is mounted on the upper end of the drive shaft (203) via the lower connector, and when the lower transmission ring (207) moves on the drive shaft (203), the drive shaft (203) continuously outputs power to the lower transmission ring (207) via the lower connector; The upper transmission ring (208) is mounted on the lower end of the transmission shaft (205) via the upper connector, and when the upper transmission ring (208) moves on the transmission shaft (205), the upper transmission ring (208) continuously outputs power to the transmission shaft (205) via the upper connector; The lower surface of the upper transfer ring (208) has an upper protrusion (2081) extending therefrom, and the upper surface of the lower transfer ring (207) has a lower protrusion (2071) extending therefrom. When the lower transfer ring (207) is driven to move upward by the drive member (206), the lower protrusion (2071) can move upward and approach the upper transfer ring (208). At this time, when the lower transfer ring (207) rotates, the lower protrusion (2071) pushes against the upper protrusion (2081), and the upper transfer ring (208) rotates together.

6. The stamping device for automotive parts according to claim 5, characterized in that, The lower connector includes a lower external spline on the drive shaft (203) and a lower internal spline on the lower transmission ring (207), and the upper connector includes a lower external spline on the transmission shaft (205) and a lower internal spline on the upper transmission ring (208).

7. The stamping device for automotive parts according to claim 5, characterized in that, The distance between the two sides of the lower protrusion (2071) along the circumferential direction of the lower transmission ring (207) decreases from bottom to top.

8. The stamping device for automotive parts according to claim 7, characterized in that, The drive unit (206) includes a cylinder and a vertically arranged guide rod (2067). A bracket (2066) is slidably mounted on the outside of the guide rod (2067). The bracket (2066) is movably connected to the lower transmission ring (207). A spring (2068) located above the bracket (2066) is sleeved on the outside of the guide rod (2067). The cylinder includes a vertically arranged cylinder shell (2061) and piston rod (2064). The cylinder shell (2061) is fitted with a main piston (2062) and an auxiliary piston (2063) located above the main piston (2062). The end face of the main piston (2062) is provided with a lower through hole, and the end face of the auxiliary piston (2063) is provided with an upper through hole. The lower end of the piston rod (2064) is located below the main piston (2062) and is provided with a limit ring. The upper end of the piston rod (2064) passes through the lower through hole and the upper through hole and extends out of the cylinder shell (2061) and is connected to the bracket (2066). The piston rod (2064) has a shoulder on its outside and the shoulder abuts against the upper surface of the auxiliary piston (2063). The piston rod (2064) is fitted with a spring (2065) located between the main piston (2062) and the auxiliary piston (2063). The spring force coefficient of the spring (2065) is greater than that of the spring (2068).

9. The method of using the automotive parts stamping device as described in claim 8, characterized in that, Includes the following steps: Step 1: Place the material on the die (102), and then drive the punch seat (105) to move down through the hydraulic cylinder (106), and move the punch (104) down to achieve the initial stamping of the material; Step Two: After the initial stamping is completed, the hydraulic cylinder (106) stops running, and the pre-stored flywheel (202) drives the drive shaft (203) to rotate continuously. At the same time, air enters the cylinder shell (2061), causing the main piston (2062), auxiliary piston (2063), piston rod (2064), bracket (2066), and lower transmission ring (207) to move upward. Spring 2 (2068) is compressed, and the upward movement of the lower transmission ring (207) enables the lower protrusion (2068) to move upward. 71) Move upward and close to the upper transmission ring (208). At this time, when the lower transmission ring (207) rotates, it pushes against the upper protrusion (2081) through the lower protrusion (2071) and makes the upper transmission ring (208) rotate together. The upper transmission ring (208) drives the input end of the lifting member (211) to rotate through the transmission shaft (205) and the power transmission member (210), thereby making the die holder (103) and the die (102) move upward together, thus completing one stamping action; Since the side of the lower protrusion (2071) is arranged at an angle, during the stamping action, the lower protrusion (2071) and the lower transmission ring (207) move downwards, and the first spring (2065) is compressed. When the lower protrusion (2071) moves down to the point where it is no longer in contact with the upper protrusion (2081), the first spring (2065) releases its elastic force and pushes the lower protrusion (2071) up. Then, the lower protrusion (2071) will contact the upper protrusion (2081) and push it again to rotate together, and perform the next stamping action. This process is repeated to achieve the purpose of intermittent stamping.

Images