Punching buffer structure of a punching die

Abstract

The utility model discloses a stamping buffer structure of stamping die, including the buffer mechanism of setting between module A and module B, the buffer mechanism is by mounting seat, piston rod, spring, hydraulic cylinder body, mounting base is constituteed, the mounting base is installed on module B, the hydraulic cylinder body sets up on mounting base, the mounting seat is installed on module A, the piston rod is penetrated between mounting seat, hydraulic cylinder body, the utility model discloses the sealing assembly of design, silica gel sealing piece can effectively fill the tiny gap between groove body component and the clamping block, when hydraulic cylinder body hydraulic cylinder body is received internal hydraulic oil pressure, silica gel sealing piece will take place elastic deformation, tightly adhere on the contact surface, prevent hydraulic oil from leaking out from these gaps, compared with only relying on the connecting mode of bolt penetration, silica gel sealing piece provides a flexible sealing barrier, greatly reduces the risk of hydraulic oil leakage.

Description

Technical Field

[0001] This utility model belongs to the field of stamping buffer technology, specifically relating to a stamping buffer structure for a stamping die. Background Technology

[0002] In the design and application of stamping dies, the stamping buffer structure is a key component to ensure the stability of the stamping process, improve workpiece quality, and extend die life. Its core function is to absorb or offset the impact energy during the stamping process, control the accuracy of the slide movement, and compensate for die clearance deviations, thereby solving problems such as workpiece deformation, die wear, and equipment vibration that are prone to occur during stamping. It is widely used in various stamping processes such as blanking, bending, deep drawing, and forming. The composite buffer structure combines the characteristics of spring buffering and hydraulic buffering to achieve buffering during the operation of stamping dies.

[0003] The existing stamping buffer structure of stamping dies, through the detachable structure of the hydraulic cylinder, meets the needs of periodically changing hydraulic oil and inspecting or replacing pistons and seals. However, because the hydraulic cylinder is assembled by bolts, there is insufficient sealing, resulting in internal hydraulic oil leakage. Therefore, this utility model proposes a stamping buffer structure for stamping dies. Utility Model Content

[0004] The purpose of this utility model is to provide a stamping buffer structure for a stamping die, so as to solve the problem that the hydraulic cylinder of the stamping buffer structure proposed in the background art is a detachable structure and has insufficient sealing performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stamping buffer structure for a stamping die, comprising a buffer mechanism disposed between module A and module B. The buffer mechanism consists of a mounting base, a piston rod, a spring, a hydraulic cylinder, and a mounting base. The mounting base is mounted on module B, the hydraulic cylinder is disposed on the mounting base, and the mounting base is mounted on module A. The piston rod passes through the mounting base and the hydraulic cylinder, with its end extending into the interior of the hydraulic cylinder. The spring is sleeved on the surface of the piston rod and located between the mounting base and the hydraulic cylinder. The hydraulic cylinder consists of an upper cylinder, a lower cylinder, a flange structure, and a sealing assembly. The upper cylinder is disposed on top of the lower cylinder. The flange structure consists of flange A and flange B. Flange A is fixed to the bottom of the upper cylinder, and flange B is fixed to the top of the lower cylinder. The sealing assembly consists of a locking block and a groove assembly. The locking block is fixed to the bottom of flange A, and the groove assembly is disposed on the top of flange B.

[0006] Preferably, mounting holes are provided on the inner side of both flange A and flange B, and bolts pass through the inner side of the mounting holes.

[0007] Preferably, the groove assembly consists of a slot, a silicone seal, and a metal ring. The slot is located at the top of the flange B and the top of the lower cylinder. The silicone seal is fixed to the inside of the slot, and the metal ring is fixed to the top of the silicone seal and located inside the slot.

[0008] Preferably, a plurality of positioning components are provided on the side of the connection between flange A and flange B and at the junction of the locking block and the groove assembly. Each positioning component consists of a positioning block and a positioning groove. The positioning groove is formed on the surface of flange B. The positioning block is fixed to the bottom end of flange A and located on the side of the locking block. The positioning block is engaged with the inside of the positioning groove.

[0009] Preferably, a piston is provided inside the hydraulic cylinder and at the end of the piston rod.

[0010] Preferably, the side wall of the hydraulic cylinder is provided with a throttling orifice.

[0011] Preferably, the hydraulic cylinder body is provided with a seal.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The sealing component designed in this invention uses a silicone seal that effectively fills the tiny gaps between the groove assembly and the locking block. When the hydraulic cylinder is subjected to internal hydraulic oil pressure, the silicone seal undergoes elastic deformation, tightly fitting against the contact surface and preventing hydraulic oil from leaking out through these gaps. Compared to connections relying solely on bolts, the silicone seal provides a flexible sealing barrier, significantly reducing the risk of hydraulic oil leakage. The metal ring enhances the strength and stability of the sealing structure, preventing the silicone seal from being squeezed out or damaged under high pressure. This multi-component collaborative sealing method improves the sealing effect from different angles and levels, ensuring the sealing performance of the hydraulic cylinder under various working conditions and reducing the impact of hydraulic oil leakage on the performance of the buffer structure. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the pre-installation of flange A and flange B of this utility model;

[0016] Figure 3 This utility model Figure 2 Enlarged schematic diagram of region A in the image;

[0017] Figure 4 This is a schematic diagram of the installation of flange A and flange B according to this utility model;

[0018] In the diagram: 1. Module A; 2. Module B; 3. Buffer mechanism; 31. Mounting base; 32. Piston rod; 33. Spring; 34. Hydraulic cylinder body; 341. Locking block; 342. Groove assembly; 3421. Locking groove; 3422. Silicone seal; 3423. Metal ring; 343. Positioning assembly; 3431. Positioning block; 3232. Positioning groove; 35. Mounting base. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1 to 4This utility model provides a technical solution: a stamping buffer structure for a stamping die, including a buffer mechanism 3 disposed between module A1 and module B2. The buffer mechanism 3 consists of a mounting base 31, a piston rod 32, a spring 33, a hydraulic cylinder body 34, and a mounting base 35. The mounting base 35 is mounted on module B2, the hydraulic cylinder body 34 is disposed on the mounting base 35, and the mounting base 31 is mounted on module A1. The piston rod 32 passes through the mounting base 31 and the hydraulic cylinder body 34, and the end of the piston rod 32 extends into the interior of the hydraulic cylinder body 34. The spring 33 is sleeved on the surface of the piston rod 32 and located between the mounting base 31 and the hydraulic cylinder body 34. The hydraulic cylinder body 34 consists of an upper cylinder body, a lower cylinder body, a flange structure, and a sealing assembly. The upper cylinder body is provided with... At the top of the lower cylinder body, the flange structure consists of flange A and flange B. Flange A is fixed to the bottom of the upper cylinder body, and flange B is fixed to the top of the lower cylinder body. The sealing assembly consists of a locking block 341 and a groove assembly 342. The locking block 341 is fixed to the bottom of flange A, and the groove assembly 342 is located on the top of flange B. Mounting holes are provided on the inner sides of both flange A and flange B, and bolts pass through the inner sides of these mounting holes. The groove assembly 342 consists of a slot 3421, a silicone seal 3422, and a metal ring 3423. During the installation of the upper and lower cylinder bodies, when flanges A and B are fitted together, multiple positioning components 343 are used to align the mounting holes between flanges A and B. 41. Insert the silicone seal 3422 into the inner side, and then tighten the bolt through the mounting hole, causing the clamping block 341 and the silicone seal 3422 to be squeezed together. The metal ring 3423 restricts the movement space of the silicone seal 3422, ensuring sealing and completing the installation of the cylinder body and the lower cylinder body. This ensures a good sealing effect and prevents hydraulic oil leakage during operation. The groove 3421 is opened at the top of the flange B and the top of the lower cylinder body. The silicone seal 3422 is fixed inside the groove 3421, and the metal ring 3423 is fixed at the top of the silicone seal 3422 and located inside the groove 3421. In this invention, the silicone seal 3422 can effectively fill the tiny gap between the groove assembly 342 and the clamping block 341. When the hydraulic cylinder body 34 is subjected to internal hydraulic oil pressure, the silicone seal 3422 undergoes elastic deformation, tightly fitting against the contact surface to prevent hydraulic oil from leaking out through these gaps. Compared to connections relying solely on bolts, the silicone seal 3422 provides a flexible sealing barrier, significantly reducing the risk of hydraulic oil leakage. The metal ring 3423 enhances the strength and stability of the sealing structure, preventing the silicone seal 3422 from being squeezed out or damaged under high pressure. This multi-component collaborative sealing method improves the sealing effect from different angles and levels, ensuring the sealing performance of the hydraulic cylinder body under various operating conditions and reducing the impact of hydraulic oil leakage on the performance of the buffer structure. A piston is located inside the hydraulic cylinder body 34 at the end of the piston rod 32.The hydraulic cylinder body 34 has throttling orifices on its side walls, and seals are installed inside the hydraulic cylinder body 34. These seals are distributed at the contact points between the piston and the hydraulic cylinder body 34, as well as at the inlet and outlet of the hydraulic cylinder body 34, to prevent hydraulic oil leakage and ensure the normal operation of the hydraulic system.

[0021] In this embodiment, preferably, a plurality of positioning components 343 are provided on the side of the connection between flange A and flange B and at the junction of the locking block 341 and the groove assembly 342. The positioning components 343 are used to position flange A and flange B when they are fitted together, so as to facilitate the subsequent bolt penetration. The positioning components 343 consist of positioning blocks 3431 and positioning grooves 3432. The positioning grooves 3432 are formed on the surface of flange B. The positioning blocks 3431 are fixed to the bottom end of flange A and located on the side of the locking block 341. The positioning blocks 3431 are inserted into the inner side of the positioning grooves 3432.

[0022] The working principle and usage process of this utility model are as follows: At this moment, the buffer mechanism 3 is in the initial position, the spring 33 is in the naturally extended state, the hydraulic oil in the hydraulic cylinder 34 is full of the cavity, the piston is installed at the end of the piston rod 32 and located inside the hydraulic cylinder 34, the piston and the inner wall of the hydraulic cylinder 34 maintain a suitable gap, the throttling orifice on the hydraulic cylinder 34, the throttling orifice is on the side wall of the hydraulic cylinder 34, the orifice is used to control the flow of hydraulic oil, and is in a normal conducting state, the silicone seal 3422 and other sealing components ensure the sealing of the hydraulic cylinder 34 and prevent hydraulic oil leakage;

[0023] When module A1 moves towards module B2 and applies pressure to the buffer mechanism, the piston rod 32 is subjected to pressure, causing the piston to move into the hydraulic cylinder 34. At this time, the hydraulic oil inside the hydraulic cylinder 34 is squeezed by the piston and begins to flow through the throttle orifice on the hydraulic cylinder 34. Because the throttle orifice hinders the flow of hydraulic oil, it generates a damping force, thereby slowing down the movement speed of the piston rod 32 and achieving a buffering effect. At the same time, the spring 33 also begins to be compressed, absorbing some of the impact energy and converting the kinetic energy into the elastic potential energy of the spring. As module A1 continues to apply pressure... The piston rod 32 continues to drive the piston to move within the hydraulic cylinder 34. The hydraulic oil continues to flow through the throttle orifice, and the damping force continues to act. The spring 33 is further compressed, continuously absorbing and buffering the impact energy transmitted from the module A1, so that the movement of the module A1 gradually slows down smoothly. During this process, the sealing structures such as the silicone seal 3422 and the metal ring 3423 continuously ensure the sealing of the hydraulic cylinder 34, preventing hydraulic oil leakage from affecting the buffering effect. The positioning block 3431 in the positioning component 343 cooperates with the positioning groove 3232 to ensure the accuracy of the movement of the piston rod 32 and other components.

[0024] When the pressure in module A1 disappears, spring 33 begins to release its stored elastic potential energy, pushing piston rod 32 and piston to move to their initial positions. During this process, hydraulic oil in hydraulic cylinder 34 flows in the reverse direction through the throttle orifice, assisting piston and piston rod 32 in resetting. At the same time, the locking block 341 cooperates with the locking groove 3421 and other structures in the groove assembly 342 to ensure the relative position stability of components such as hydraulic cylinder 34, enabling the buffer mechanism to return to its initial state and prepare for the next buffering operation.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stamping buffer structure for a stamping die, comprising a buffer mechanism (3) disposed between module A (1) and module B (2), characterized in that: The buffer mechanism (3) consists of a mounting base (31), a piston rod (32), a spring (33), a hydraulic cylinder (34), and a mounting base (35). The mounting base (35) is mounted on module B (2), the hydraulic cylinder (34) is mounted on the mounting base (35), the mounting base (31) is mounted on module A (1), the piston rod (32) passes through the mounting base (31) and the hydraulic cylinder (34), and the end of the piston rod (32) extends into the interior of the hydraulic cylinder (34). The spring (33) is sleeved on the piston rod (32). The surface of the cylinder is located between the mounting base (31) and the hydraulic cylinder body (34). The hydraulic cylinder body (34) consists of an upper cylinder body, a lower cylinder body, a flange structure, and a sealing assembly. The upper cylinder body is located on top of the lower cylinder body. The flange structure consists of flange A and flange B. Flange A is fixed to the bottom of the upper cylinder body, and flange B is fixed to the top of the lower cylinder body. The sealing assembly consists of a locking block (341) and a groove assembly (342). The locking block (341) is fixed to the bottom of flange A, and the groove assembly (342) is located on top of flange B.

2. The stamping buffer structure of a stamping die according to claim 1, characterized in that: Both flange A and flange B have mounting holes on their inner sides, and bolts pass through the inner sides of the mounting holes.

3. The stamping buffer structure of a stamping die according to claim 1, characterized in that: The groove assembly (342) consists of a slot (3421), a silicone seal (3422), and a metal ring (3423). The slot (3421) is located at the top of the flange B and the top of the lower cylinder. The silicone seal (3422) is fixed inside the slot (3421). The metal ring (3423) is fixed at the top of the silicone seal (3422) and located inside the slot (3421).

4. The stamping buffer structure of a stamping die according to claim 1, characterized in that: Multiple positioning components (343) are provided on the side of the connection between flange A and flange B and at the junction of the locking block (341) and the groove assembly (342). Each positioning component (343) consists of a positioning block (3431) and a positioning groove (3432). The positioning groove (3432) is opened on the surface of flange B. The positioning block (3431) is fixed to the bottom of flange A and located on the side of the locking block (341). The positioning block (3431) is inserted into the inside of the positioning groove (3432).

5. The stamping buffer structure of a stamping die according to claim 1, characterized in that: A piston is provided inside the hydraulic cylinder (34) and at the end of the piston rod (32).

6. The stamping buffer structure of a stamping die according to claim 1, characterized in that: The hydraulic cylinder body (34) is provided with a throttling hole on its side wall.

7. The stamping buffer structure of a stamping die according to claim 1, characterized in that: The hydraulic cylinder body (34) is equipped with a seal inside.

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