A punch mechanism of a punch press

Abstract

The utility model relates to punch press technical field discloses a punch mechanism of punch press, including installation base, the top fixed mounting of installation base has the punch assembly, one side fixed mounting of punch assembly has the buffer assembly, buffer assembly swing installation is in the top of installation base, the inside swing installation of buffer assembly has fixed component, fixed component swing installation is below punch assembly, when needing to punch the article, through drive motor, promote punch piece to punch the article, promote fixed plate to go down simultaneously, make first spring contract, produce the down pressure, carry out the buffer to installation base in the punch process, reduce the vibration amplitude, improve device stability, prolong the equipment life, promote the processing accuracy.

Description

Technical Field

[0001] This utility model relates to the field of stamping machine technology, specifically to a stamping mechanism for a stamping machine. Background Technology

[0002] Traditional processing methods, such as manual cutting and simple pressing, often result in large dimensional deviations and numerous edge burrs on metal and non-metal sheet workpieces. These methods are also inefficient and labor-intensive, failing to meet the precision and efficiency requirements of mass production. Therefore, stamping machines are typically used for precise forming of workpieces. The stamping mechanism is the core actuator of the stamping machine.

[0003] Existing stamping mechanisms require fixing different sizes of sheet metal before stamping. When switching workpiece specifications, the stroke parameters of the mechanism need to be adjusted to meet the new processing requirements. However, since the fixing components of traditional stamping mechanisms are mostly snap-fit, they cannot be quickly disassembled or adjusted, making it difficult to adapt to different sheet metal specifications. This makes operation very cumbersome and the specification switching efficiency low. Not only is it prone to inaccurate positioning due to manual slider replacement, but it is also prone to vibration caused by repeated stamping, leading to a continuous decrease in subsequent stamping accuracy. This makes it inconvenient for continuous processing of batches of workpieces with multiple specifications.

[0004] Therefore, we propose a stamping mechanism for a stamping press to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a stamping mechanism for a stamping machine to solve the problems mentioned in the background art, such as the inability of operators to quickly disassemble or adjust the stamping sheet metal, the difficulty in adapting to different specifications of sheet metal, the cumbersome operation, and the low efficiency of specification switching; not only is it easy to make inaccurate positioning due to manual replacement of the slider, but it is also easy to cause vibration due to multiple stamping, resulting in a continuous decrease in subsequent stamping accuracy, which is inconvenient for continuous processing of batches of multi-specification workpieces.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a stamping mechanism for a stamping machine, comprising a mounting base, a stamping assembly fixedly mounted on the top of the mounting base, a buffer assembly fixedly mounted on one side of the stamping assembly, the buffer assembly being movably mounted on the top of the mounting base, a fixing assembly being movably mounted inside the buffer assembly, and the fixing assembly being movably mounted below the stamping assembly.

[0007] Preferably, the stamping assembly includes a mounting bracket and a mounting groove disposed inside the mounting bracket. The mounting bracket is fixedly mounted above the mounting base. A motor is fixedly mounted at one end of the mounting bracket, and a drive shaft is fixedly mounted at the output end of the motor. The drive shaft is rotatably mounted inside the mounting bracket. A cam is fixedly mounted on the outer periphery of the drive shaft. A sliding shaft is slidably mounted inside the mounting groove. A stamping part is fixedly mounted below the sliding shaft. A limit plate is fixedly mounted above the sliding shaft. A return spring is fixedly mounted between the limit plate and the mounting bracket.

[0008] Preferably, the buffer assembly includes a fixed plate and a fixed hole that passes through the center of the fixed plate. The fixed hole is fixedly installed on the outer periphery of the stamping part. Sliding holes are uniformly provided inside the fixed plate. A sliding rod is slidably installed in the sliding hole. A fixed assembly is slidably installed on the outer periphery of the sliding rod. A limit post is fixedly installed above the sliding rod. A fixed frame is fixedly installed below the sliding rod. A fixed assembly is slidably installed inside the fixed frame. A first spring is fixedly installed between the fixed frame and the fixed plate, and the first spring is movably installed on the outer periphery of the sliding rod.

[0009] Preferably, four T-shaped holes are evenly distributed around the perimeter of the fixing frame, and fixing components are slidably installed in the T-shaped holes.

[0010] Preferably, the fixing assembly includes a connecting ring and a connecting shaft rotatably mounted on the outside of the connecting ring via a rotating shaft. The connecting ring is slidably mounted on the outer periphery of the sliding rod, and the sliding rod is fixedly mounted above the first spring. A T-shaped slider is rotatably mounted on the other end of the connecting shaft via a rotating shaft, and the T-shaped slider is slidably mounted inside the T-shaped hole. A sliding plate is fixedly mounted between the two T-shaped sliders, and the sliding plates are alternately slidably connected.

[0011] Preferably, the sliding plate has sliding holes through both sides, a sliding block is slidably installed inside the sliding hole, a limit block is fixedly installed at the outer end of the sliding block, and a fixed positioning plate is fixedly installed at the inner end of the sliding block. The fixed positioning plates are slidably connected in an alternating manner, and a second spring is fixedly installed between the fixed positioning plate and the sliding plate.

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

[0013] 1. When it is necessary to stamp an item, the drive motor pushes the stamping part to stamp the item, and at the same time pushes the fixed plate to move down, causing the first spring to contract and generate downward pressure. During the stamping process, the mounting base is buffered, the vibration amplitude is reduced, the stability of the device is improved, the equipment life is extended, and the processing accuracy is improved.

[0014] 2. When stamping an item, the drive motor pushes the stamping part to stamp the item. At the same time, the fixed plate pushes the connecting ring down, causing the sliding plate to close, so that the fixed positioning plate fits and positions the stamped item. Then the fixed positioning plate continues to close, centering and fixing the stamped item, preventing the stamped item from shifting during the stamping process and affecting the stamping accuracy. It can also be adapted to stamped items of different specifications, making it convenient to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the stamping structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the stamping structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the buffer component structure of this utility model;

[0018] Figure 4 This is a cross-sectional view of the buffer component of this utility model;

[0019] Figure 5 This is a schematic diagram of the fixing component structure of this utility model.

[0020] In the diagram: 1. Mounting base; 2. Stamping assembly; 21. Mounting bracket; 211. Mounting slot; 22. Motor; 23. Drive shaft; 231. Cam; 24. Sliding shaft; 241. Stamping part; 242. Limiting plate; 243. Return spring; 3. Buffer assembly; 31. Fixing plate; 311. Fixing hole; 312. Sliding hole; 32. Sliding rod; 321. Limiting post; 33. Fixing frame; 331. T-shaped hole; 34. First spring; 4. Fixing assembly; 41. Connecting ring; 42. Connecting shaft; 43. T-shaped slider; 44. Sliding plate; 441. Sliding hole; 45. Sliding block; 451. Limiting block; 452. Fixing and positioning plate; 46. Second spring. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-3A stamping mechanism for a stamping machine includes a mounting base 1. A stamping assembly 2 is fixedly mounted on the top of the mounting base 1. The stamping assembly 2 is used to stamp an article. A buffer assembly 3 is fixedly mounted on one side of the stamping assembly 2. The buffer assembly 3 is used to dampen shock and reduce the vibration amplitude of the device during stamping. The buffer assembly 3 is movably mounted on the top of the mounting base 1. A fixing assembly 4 is movably mounted inside the buffer assembly 3. The fixing assembly 4 is used to fix and position the stamped article to prevent the stamped article from shifting and reducing the stamping accuracy. The fixing assembly 4 is movably mounted below the stamping assembly 2.

[0023] The stamping assembly 2 includes a mounting bracket 21 and a mounting groove 211 disposed inside the mounting bracket 21. The mounting bracket 21 is fixedly mounted above the mounting base 1. A motor 22 is fixedly mounted at one end of the mounting bracket 21. A drive shaft 23 is fixedly mounted at the output end of the motor 22. The motor 22 drives the drive shaft 23 to rotate. The drive shaft 23 is rotatably mounted inside the mounting bracket 21. A cam 231 is fixedly mounted on the outer periphery of the drive shaft 23. A sliding shaft 24 is slidably mounted inside the mounting groove 211. A stamping part 241 is fixedly mounted below the sliding shaft 24. The cam 231 rotates and pushes the stamping part 241 to stamp the item. A limit plate 242 is fixedly mounted above the sliding shaft 24 to prevent the sliding shaft 24 from detaching from the mounting bracket 21. A return spring 243 is fixedly mounted between the limit plate 242 and the mounting bracket 21. The return spring 243 ensures that the stamping part 241 automatically resets after stamping, reducing idle stroke consumption.

[0024] The buffer assembly 3 includes a fixed plate 31 and a fixed hole 311 that passes through the center of the fixed plate 31. The fixed hole 311 is fixedly installed on the outer periphery of the stamping part 241. The stamping of the stamping part 241 drives the buffer assembly 3 to move. Sliding holes 312 are evenly distributed inside the fixed plate 31. A sliding rod 32 is slidably installed in the sliding hole 312. A fixed assembly 4 is slidably installed on the outer periphery of the sliding rod 32. A limit post 321 is fixedly installed above the sliding rod 32 to prevent the sliding rod 32 from detaching from the fixed plate 31. A fixed frame 33 is fixedly installed below the sliding rod 32. The fixed assembly 4 is slidably installed inside the fixed frame 33. A first spring 34 is fixedly installed between the fixed frame 33 and the fixed plate 31. The first spring 34 is movably installed on the outer periphery of the sliding rod 32. When the stamping assembly 2 stamps the object through the first spring 34, the buffer assembly 3 provides a certain buffer protection for the device.

[0025] Specifically, when it is necessary to stamp an item, the drive motor 22 causes the transmission shaft 23 to drive the cam 231 to rotate, pushing the stamping part 241 to stamp the item. At the same time, the fixed plate 31 is pushed down, so that the fixed frame 33 abuts against the mounting base 1, causing the first spring 34 to contract and generate downward pressure. During the stamping process, the mounting base 1 is buffered, the vibration amplitude is reduced, the stability of the device is improved, the equipment life is extended, and the processing accuracy is improved.

[0026] Please see Figure 4 and Figure 5 Four T-shaped holes 331 are evenly provided around the perimeter of the fixed frame 33, and a fixed component 4 is slidably installed in the T-shaped holes 331.

[0027] The fixing component 4 includes a connecting ring 41 and a connecting shaft 42 rotatably mounted on the outside of the connecting ring 41 via a rotating shaft. The connecting ring 41 is slidably mounted on the outer periphery of the sliding rod 32, and the sliding rod 32 is fixedly mounted above the first spring 34. The movement of the stamping part 241 causes the fixing plate 31 to push the connecting ring 41 to slide. The other end of the connecting shaft 42 is rotatably mounted with a T-shaped slider 43 via a rotating shaft, and the T-shaped slider 43 is slidably mounted inside the T-shaped hole 331. The sliding of the connecting ring 41 causes the connecting shaft 42 to push the T-shaped slider 43 to slide. A sliding plate 44 is fixedly mounted between the two T-shaped sliders 43, and the sliding plates 44 are alternately slidably connected. The sliding of the T-shaped slider 43 causes the sliding plates 44 to close.

[0028] The sliding plate 44 has sliding holes 441 through both sides. A sliding block 45 is slidably installed inside the sliding hole 441. A limit block 451 is fixedly installed at the outer end of the sliding block 45 to prevent the sliding block 45 from detaching from the sliding plate 44. A fixed positioning plate 452 is fixedly installed at the inner end of the sliding block 45. The fixed positioning plates 452 are slidably connected in an alternating manner. When the sliding plate 44 is closed, the fixed positioning plates 452 are driven to center and fix the stamped item to prevent sliding and deviation. A second spring 46 is fixedly installed between the fixed positioning plate 452 and the sliding plate 44. The second spring 46 provides a certain buffering capacity when the fixed positioning plate 452 is fixed, which can fix stamping components 2 of different sizes.

[0029] Specifically, when stamping an item, the drive motor 22 pushes the stamping part 241 to stamp the item. At the same time, the fixing plate 31 pushes the connecting ring 41 to move down, causing the connecting shaft 42 to rotate and push the T-shaped slider 43 to slide in the T-shaped hole 331. This causes the sliding plate 44 to close, so that the fixing positioning plate 452 fits and positions the stamped item. Then, the fixing positioning plate 452 continues to close, centering and fixing the stamped item to prevent it from shifting during the stamping process and affecting the stamping accuracy. It can also be adapted to stamped items of different specifications, making it convenient to use.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A stamping mechanism for a stamping machine, comprising a mounting base (1), characterized in that: A stamping assembly (2) is fixedly installed above the mounting base (1), and a buffer assembly (3) is fixedly installed on one side of the stamping assembly (2). The buffer assembly (3) is movably installed above the mounting base (1), and a fixing assembly (4) is movably installed inside the buffer assembly (3). The fixing assembly (4) is movably installed below the stamping assembly (2).

2. The stamping mechanism of a stamping machine according to claim 1, characterized in that: The stamping assembly (2) includes a mounting bracket (21) and a mounting groove (211) disposed inside the mounting bracket (21). The mounting bracket (21) is fixedly mounted above the mounting base (1). A motor (22) is fixedly mounted at one end of the mounting bracket (21). A transmission shaft (23) is fixedly mounted at the output end of the motor (22). The transmission shaft (23) is rotatably mounted inside the mounting bracket (21). A cam (231) is fixedly mounted on the outer periphery of the transmission shaft (23). A sliding shaft (24) is slidably mounted inside the mounting groove (211). A stamping part (241) is fixedly mounted below the sliding shaft (24). A limit plate (242) is fixedly mounted above the sliding shaft (24). A return spring (243) is fixedly mounted between the limit plate (242) and the mounting bracket (21).

3. The stamping mechanism of a stamping machine according to claim 2, characterized in that: The buffer assembly (3) includes a fixed plate (31) and a fixed hole (311) through the center of the fixed plate (31). The fixed hole (311) is fixedly installed on the outer periphery of the stamping part (241). Sliding holes (312) are uniformly arranged through the interior of the fixed plate (31). A sliding rod (32) is slidably installed in the sliding hole (312). A fixed assembly (4) is slidably installed on the outer periphery of the sliding rod (32). A limit post (321) is fixedly installed above the sliding rod (32). A fixed frame (33) is fixedly installed below the sliding rod (32). A fixed assembly (4) is slidably installed inside the fixed frame (33). A first spring (34) is fixedly installed between the fixed frame (33) and the fixed plate (31). The first spring (34) is movably installed on the outer periphery of the sliding rod (32).

4. The stamping mechanism of a stamping machine according to claim 3, characterized in that: The fixed frame (33) has four T-shaped holes (331) evenly distributed around its perimeter, and a fixing component (4) is slidably installed in the T-shaped holes (331).

5. The stamping mechanism of a stamping machine according to claim 4, characterized in that: The fixing component (4) includes a connecting ring (41) and a connecting shaft (42) rotatably mounted on the outside of the connecting ring (41) via a rotating shaft. The connecting ring (41) is slidably mounted on the outer periphery of the sliding rod (32), and the sliding rod (32) is fixedly mounted above the first spring (34). The other end of the connecting shaft (42) is rotatably mounted with a T-shaped slider (43) via a rotating shaft, and the T-shaped slider (43) is slidably mounted inside the T-shaped hole (331). A sliding plate (44) is fixedly mounted between the two T-shaped sliders (43), and the sliding plates (44) are alternately slidably connected.

6. The stamping mechanism of a stamping machine according to claim 5, characterized in that: The sliding plate (44) has sliding holes (441) through both sides. A sliding block (45) is slidably installed inside the sliding hole (441). A limit block (451) is fixedly installed at the outer end of the sliding block (45), and a fixed positioning plate (452) is fixedly installed at the inner end of the sliding block (45). The fixed positioning plates (452) are slidably connected in an alternating manner. A second spring (46) is fixedly installed between the fixed positioning plate (452) and the sliding plate (44).

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