A two-stage cushion gasket punch

Abstract

This utility model relates to the field of gasket processing, and more particularly to a two-stage buffer gasket stamping punch, including a base plate, a drive block, a connecting block, and a pressure block. The drive block is fixedly connected to the stamping spindle, the connecting block is slidably mounted on the drive block, and the pressure block is slidably mounted on the connecting block. A connecting rod is also provided on the drive block. The pressure block has a chamber and a connecting stepped hole. An upper die is slidably mounted in the chamber. The connecting rod passes through the connecting stepped hole and is fixedly connected to the upper die. A first spring is sleeved on the connecting rod. A lower die is provided on the base plate, and the position of the lower die corresponds to the position of the upper die. This utility model, by setting up the pressure block and the first spring, allows the pressure block to contact the raw material before stamping, but without applying pressure. Subsequently, as the spindle descends, pressure is gradually applied to fix the raw material, and finally, the lower die presses down on the raw material, realizing the stamping processing of the gasket. This prevents the raw material sheet from arching in the middle and ensures good consistency between the stamping position and the layout position.

Description

Technical Field

[0001] This utility model relates to the field of gasket processing, and in particular to a two-stage buffer gasket stamping punch. Background Technology

[0002] A washer, also known as a gasket, is a part placed between a connected component and a nut. It is generally a flat metal ring used to protect the surface of the connected component from scratches by the nut and to distribute the pressure of the nut on the connected component.

[0003] Generally, small-sized gaskets are produced by stamping to achieve rapid mass production. However, because the raw material is a long plate, longer than the base plate, the long plate is prone to arching in the middle, which is not conducive to positioning during processing. Once misaligned, incomplete gaskets are obtained. To avoid this, a larger spacing is usually set between the stamping positions of two gaskets during layout to improve tolerance, which reduces material utilization. Therefore, it is necessary to improve this structure to overcome the above-mentioned defects. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a two-stage buffer pad stamping punch. This utility model is achieved through the following technical solution:

[0005] A two-stage buffer pad stamping punch includes a base plate, a drive block, a connecting block, and a pressing block. The drive block is fixedly connected to a stamping spindle. The connecting block is slidably disposed on the drive block, and the pressing block is slidably disposed on the connecting block. The sliding direction of the connecting block and the pressing block is both up and down. The drive block is also provided with several connecting rods. The lower end face of the pressing block is provided with a cavity, and the other end face is provided with several connecting stepped holes. An upper die is slidably disposed in the cavity. The connecting rod passes through the connecting stepped holes and is fixedly connected to the upper die. A first spring is also sleeved on the connecting rod. One end of the first spring contacts the drive block, and the other end contacts the connecting stepped hole. A lower die is provided on the base plate, and the position of the lower die corresponds to the position of the upper die.

[0006] In the above technical solution: the base plate is used to set the lower die; the drive block is used to transmit force from the main shaft; the connecting block is used to set the remaining components; the pressure block is used to press down the raw material sheet to prevent the sheet from arching; the connecting rod is used to transmit force from the drive block to the upper die; the chamber is used to set the upper die; the connecting stepped hole is used to allow the drive block to directly contact the pressure block after the first spring is compressed to a certain extent, so as to realize force transmission; the upper die is used to cooperate with the lower die to realize stamping; the first spring is used to ensure that the pressure block can always be in contact with the raw material, thereby preventing the middle of the raw material sheet from arching.

[0007] A further feature of this invention is that the connecting block is provided with a plurality of mounting stepped holes, and a limiting post is slidably disposed in the mounting stepped holes. The limiting post is a stepped post, and a second spring is sleeved on the limiting post. One end of the second spring contacts the mounting stepped hole, and the other end keeps in contact with the stepped surface of the limiting post.

[0008] In the above technical solution: the stepped holes are used to set the limiting posts; the limiting posts are used to restrict the raw material sheet from sliding to both sides; the second spring is set to buffer and avoid rigid collision between the limiting posts and the base plate.

[0009] A further feature of this invention is that: matching steps are provided on both sides of the upper surface of the base plate, and the position of the limiting post is adapted to the matching steps.

[0010] In the above technical solution: the step is designed to ensure side contact between the raw material sheet and the limiting post.

[0011] A further feature of this invention is that the end of the limiting post away from the base plate is provided with a head, the diameter of which is larger than the diameter of the limiting post.

[0012] In the above technical solution: the end is used to prevent the limiting post from falling downwards.

[0013] A further feature of this invention is that the drive block includes a transition block and a mounting block, one end of the transition block is fixedly connected to the stamping spindle, and the other end is fixedly connected to the mounting block, which is C-shaped.

[0014] In the above technical solution: the drive block is divided into the transition block and the mounting block, so that it can be disassembled and installed to facilitate the replacement of components; the mounting block is C-shaped, so that the connecting block can be set in the space in the middle of the mounting block, thereby reducing the overall size.

[0015] A further feature of this invention is that the mounting block is provided with a slide rail, and the connecting block is provided with a slide groove, wherein the slide groove is slidably connected to the slide rail.

[0016] In the above technical solution, the slide rail and slide groove are designed to enable the sliding connection between the connecting block and the mounting block.

[0017] A further feature of this invention is that the upper mold includes a base plate and a mold plate, the base plate is fixedly connected to the connecting rod, and the mold plate is detachably fixedly mounted on the base plate.

[0018] In the above technical solution: the substrate is used to set the mold plate; the substrate is fixedly connected to the connecting rod so that the connecting rod can transmit power to the substrate.

[0019] This utility model discloses a two-stage buffer pad stamping punch, which, compared with the prior art:

[0020] This utility model, by setting up a pressure block, a first spring, a drive block and a lower die, allows the pressure block to contact the raw material before stamping, but without applying pressure. Then, after the spindle descends, pressure is gradually applied to fix the raw material, and then the upper die presses the raw material down. Finally, the stamping process of the shim is realized through the cooperation of the lower die and the upper die, so that the raw material sheet will not bulge in the middle, and the stamping position is consistent with the layout position.

[0021] This invention also limits the left and right sliding of the sheet metal by installing stepped holes, limiting posts, a second spring, and matching steps, preventing the sheet metal from shifting left and right during movement due to its excessive length, and further improving the accuracy of the stamping position. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the present invention;

[0023] Figure 2 This is a partial cross-sectional schematic diagram of the present invention.

[0024] The numbers and letters in the diagram represent the following component names: 10-Base plate; 101-Matching step; 20-Drive block; 201-Transition block; 202-Mounting block; 202a-Slide rail; 30-Connecting block; 301-Mounting step hole; 302-Slide groove; 40-Pressure block; 401-Cavity; 402-Connecting step hole; 50-Connecting rod; 60-Upper mold; 601-Base plate; 602-Mold plate; 70-First spring; 80-Limiting post; 801-End; 90-Second spring; 110-Lower mold. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0026] like Figure 1 and 2As shown, this utility model proposes a two-stage buffer pad stamping punch, including a base plate 10, a drive block 20, a connecting block 30, and a pressing block 40. The drive block 20 is fixedly connected to the stamping spindle. The connecting block 30 is slidably disposed on the drive block 20, and the pressing block 40 is slidably disposed on the connecting block 30. The sliding directions of the connecting block 30 and the pressing block 40 are both up and down. The drive block 20 is also provided with several connecting rods 50, and the lower end face of the pressing block 40 is provided with a chamber 4. 01. Several connecting stepped holes 402 are provided on the other end face. An upper mold 60 is slidably disposed in the cavity 401. The connecting rod 50 passes through the connecting stepped holes 402 and is fixedly connected to the upper mold 60. A first spring 70 is also sleeved on the connecting rod 50. One end of the first spring 70 contacts the driving block 20 and the other end contacts the connecting stepped holes 402. A lower mold 110 is provided on the base plate 10. The position of the lower mold 110 corresponds to the position of the upper mold 60. The connecting block 30 has a through hole running vertically through its center, and the pressure block 40 is slidably disposed within the hole. The number of connecting rods 50 is at least three; preferably, there are two rows of connecting rods 50, with three connecting rods 50 in each row. The number of connecting stepped holes 402 is the same as the number of connecting rods 50. Preferably, the width of the cavity 401 is the same as the upper mold 60, and the depth of the cavity 401 is greater than the height of the upper mold 60. The height of the first spring 70 after being compressed to its limit is less than the depth of the larger diameter section of the connecting stepped hole 402.

[0027] like Figure 1 and 2 As shown, this utility model proposes a two-stage buffer pad stamping punch. The connecting block 30 is provided with a plurality of mounting stepped holes 301. A limiting post 80 is slidably disposed within each mounting stepped hole 301. The limiting post 80 is a stepped post, and a second spring 90 is sleeved on the limiting post 80. One end of the second spring 90 contacts the mounting stepped hole 301, and the other end maintains contact with the stepped surface of the limiting post 80. The second spring 90 is compressed by the gravity of the connecting block 30, thereby forcing the limiting post 80 into contact with the mating step 101. The diameter of the lower end of the limiting post 80 is larger than the diameter of the upper end; the diameter of the upper section of the mounting stepped hole 301 is smaller than the diameter of the lower section. Preferably, there are two limiting posts 80 on each side.

[0028] like Figure 1 and 2 As shown, the present invention proposes a two-stage buffer pad stamping punch, wherein the upper surface of the base plate 10 is provided with mating steps 101 on both sides, and the position of the limiting post 80 is adapted to the mating steps 101.

[0029] like Figure 1 and 2 As shown, this utility model proposes a two-stage buffer pad stamping punch. The end of the limiting post 80 away from the base plate 10 is provided with an end head 801, the diameter of which is larger than the diameter of the limiting post 80. Specifically, the diameter of the end head 801 is larger than the diameter of the mounting stepped hole 301, and the end head 801 is detachably fixed to one end of the limiting post 80.

[0030] like Figure 1 and 2 As shown, this utility model proposes a two-stage buffer pad stamping punch. The driving block 20 includes a transition block 201 and a mounting block 202. One end of the transition block 201 is fixedly connected to the stamping spindle, and the other end is fixedly connected to the mounting block 202. The mounting block 202 is C-shaped. The C-shaped mounting block 202 includes a notch facing downwards, and the connecting block 30 is slidably disposed within the notch.

[0031] like Figure 1 and 2 As shown, this utility model proposes a two-stage buffer pad stamping punch. The mounting block 202 is provided with a slide rail 202a, and the connecting block 30 is provided with a slide groove 302, which is slidably connected to the slide rail 202a. A limit block is provided at the upper end of the slide groove 302 to limit the range of change in the relative position between the connecting block 30 and the mounting block 202. This allows the connecting block 30 to be lifted after the mounting block 202 has moved upwards a sufficient distance, preventing the limit post 80 from contacting the mating step 101, thus facilitating the setting of new raw material plates.

[0032] like Figure 1 and 2 As shown, this utility model proposes a two-stage buffer pad stamping punch. The upper die 60 includes a base plate 601 and a mold plate 602. The base plate 601 is fixedly connected to the connecting rod 50, and the mold plate 602 is detachably fixedly mounted on the base plate 601. The size of the mold plate 602 is not larger than that of the base plate 601, and the width of the base plate 601 is adapted to the spacing of the limiting posts 80.

[0033] The working principle of this utility model is as follows:

[0034] The spindle is lifted, causing the drive block to move the connecting block upwards;

[0035] The limit post moves away from the mating step;

[0036] Place the raw material sheet onto the lower mold and adjust its position;

[0037] Spindle descent;

[0038] The limiting post contacts the mating step to achieve left and right limiting of the raw material sheet;

[0039] The briquette contacts the raw material board, keeping the raw material flat.

[0040] The spindle continues to descend to position one;

[0041] The first spring is compressed, and the pressure block applies a greater force to the plate, achieving vertical limitation;

[0042] The spindle continues to descend from position one;

[0043] The upper die moves downward and comes into contact with the raw material sheet. With the cooperation of the upper and lower dies, the shim is stamped and cut.

[0044] The spindle is raised to position one, and the raw material sheet is moved;

[0045] Repeat steps h)-k).

[0046] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A punch for stamping a two-stage buffer pad, characterized in that: The device includes a base plate (10), a drive block (20), a connecting block (30), and a pressing block (40). The drive block (20) is fixedly connected to the stamping spindle. The connecting block (30) is slidably disposed on the drive block (20), and the pressing block (40) is slidably disposed on the connecting block (30). The sliding directions of the connecting block (30) and the pressing block (40) are both up and down. The drive block (20) is also provided with several connecting rods (50). The lower end face of the pressing block (40) is provided with a cavity (401), and the other end face is provided with several connecting rods (50). A stepped hole (402) is connected to the dry connection. An upper mold (60) is slidably disposed in the chamber (401). The connecting rod (50) passes through the stepped hole (402) and is fixedly connected to the upper mold (60). A first spring (70) is also sleeved on the connecting rod (50). One end of the first spring (70) contacts the driving block (20), and the other end contacts the stepped hole (402). A lower mold (110) is disposed on the base plate (10). The position of the lower mold (110) corresponds to the position of the upper mold (60).

2. The punch for stamping a secondary buffer pad according to claim 1, characterized in that: The connecting block (30) is provided with a plurality of mounting stepped holes (301). A limiting post (80) is slidably disposed in the mounting stepped hole (301). The limiting post (80) is a stepped post, and a second spring (90) is sleeved on the limiting post (80). One end of the second spring (90) is in contact with the mounting stepped hole (301), and the other end is in contact with the stepped surface of the limiting post (80).

3. The punch for stamping a secondary buffer pad according to claim 2, characterized in that: The upper surface of the base plate (10) is provided with matching steps (101) on both sides, and the position of the limiting post (80) is adapted to the matching steps (101).

4. A secondary buffer pad stamping punch according to claim 2 or 3, characterized in that: The limiting post (80) has an end (801) at the end away from the base plate (10), and the diameter of the end (801) is larger than the diameter of the limiting post (80).

5. The punch for stamping a secondary buffer pad according to claim 2, characterized in that: The drive block (20) includes a transition block (201) and a mounting block (202). One end of the transition block (201) is fixedly connected to the stamping spindle, and the other end is fixedly connected to the mounting block (202). The mounting block (202) is C-shaped.

6. The punch for stamping a secondary buffer pad according to claim 5, characterized in that: The mounting block (202) is provided with a slide rail (202a), and the connecting block (30) is provided with a slide groove (302), and the slide groove (302) is slidably connected to the slide rail (202a).

7. The punch for stamping a secondary buffer pad according to claim 2, characterized in that: The upper mold (60) includes a base plate (601) and a mold plate (602). The base plate (601) is fixedly connected to the connecting rod (50), and the mold plate (602) is detachably fixed on the base plate (601).

Images