Stamping equipment for metal product manufacturing

Abstract

The invention discloses stamping equipment for metal product manufacturing, and relates to the technical field of stamping equipment. The device comprises an upper die, the side, close to a top plate, of the upper die is fixedly connected with a hydraulic assembly, the side, away from the upper die, of the hydraulic assembly is fixedly connected with the side, close to a bottom plate, of the top plate, the side, close to the bottom plate, of a lower die is fixedly connected with a buffering assembly, and the side, away from the lower die, of the buffering assembly is fixedly connected with the side, close to the top plate, of the bottom plate; the limiting assembly is fixedly connected to the top of the bottom plate, the side, close to the center of the bottom plate, of the limiting assembly is fixedly connected with the surface of the top plate, the side, close to the upper die, of the limiting assembly is fixedly connected with a connecting plate, and the side, away from the limiting assembly, of the connecting plate is fixedly connected with the surface of the upper die. And the upper die is limited, so that stable descending of the upper die is ensured, and shaking during stamping is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of stamping equipment, and in particular to a stamping equipment for manufacturing metal products. Background Art

[0002] Metal products refer to products made of metal materials as the main raw materials through various processing techniques. They cover a very wide range, including daily necessities, industrial equipment, building components, transportation parts and many other fields. There are many processing techniques for metal products. Stamping can efficiently produce a large number of thin plate products with regular shapes.

[0003] Metal product stamping equipment is a mechanical equipment used for stamping metal materials. It mainly applies pressure to metal plates, strips, etc. through molds to cause them to undergo plastic deformation, thereby obtaining metal products of the desired shape and size. Stamping equipment is generally composed of a fuselage, a power system, a transmission system, a working slide, a workbench, and a control system. During stamping, in order to avoid shaking of the punch, the punch needs to be limited. The limiting structure is subject to long-term friction and is prone to wear, which affects the limiting effect. Therefore, we propose a stamping equipment for metal product manufacturing. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a stamping equipment for manufacturing metal products, comprising:

[0005] A bottom plate, wherein a top plate is arranged on the top of the bottom plate;

[0006] A stamping mechanism, the stamping mechanism having a limiting structure for reducing shaking during stamping, the stamping mechanism being arranged at the interval between the bottom plate and the top plate, and the two sides of the stamping mechanism being fixedly connected to the sides of the bottom plate and the top plate that are close to each other;

[0007] Wherein, the stamping mechanism comprises:

[0008] An upper die, wherein a side of the upper die close to the top plate is fixedly connected to a hydraulic assembly, and a side of the hydraulic assembly away from the upper die is fixedly connected to a side of the top plate close to the bottom plate;

[0009] A lower mold, wherein a side of the lower mold close to the bottom plate is fixedly connected to a buffer assembly, and a side of the buffer assembly away from the lower mold is fixedly connected to a side of the bottom plate close to the top plate;

[0010] A limit assembly, the limit assembly having an oiling structure for following the oiling during the stamping of the upper die, the limit assembly being fixedly connected to the top of the bottom plate, the side of the limit assembly close to the center of the bottom plate being fixedly connected to the surface of the top plate, the side of the limit assembly close to the upper die being fixedly connected to a connecting plate, the side of the connecting plate away from the limit assembly being fixedly connected to the surface of the upper die;

[0011] Place the metal product on the top of the lower die and start the hydraulic assembly. The hydraulic assembly drives the upper die to descend. The descent of the upper die drives the connecting plate to descend. The connecting plate drives the internal structure of the limit assembly to descend with the upper die to limit the upper die and ensure the smooth descent of the upper die to avoid shaking during stamping. The upper die contacts the workpiece and stamps the workpiece. At the same time, the buffer assembly contracts and the lower die descends accordingly, thereby acting as a buffer to avoid sudden contact between the upper die and the workpiece, thereby avoiding damage to the workpiece. Finally, the lower die contacts the bottom plate and the upper die applies pressure to the workpiece to complete the stamping process.

[0012] Furthermore, four limit assemblies are arranged at the interval between the bottom plate and the top plate, and the four limit assemblies are arranged at the four corners of the bottom plate. The four limit assemblies are fixedly connected with a connecting plate on one side close to the upper mold. The four limit assemblies can limit the four corners of the upper mold, thereby ensuring the smooth lifting and lowering of the upper mold as a whole, avoiding shaking of the upper mold during stamping, and avoiding affecting the stamping effect.

[0013] Furthermore, the hydraulic assembly includes a hydraulic cylinder, which is fixedly connected to a side of the top plate close to the bottom plate, a punch is fixedly connected to a side of the hydraulic cylinder away from the top plate, and the punch is fixedly connected to a piston rod of the hydraulic cylinder, and a side of the punch away from the hydraulic cylinder is fixedly connected to a side of the upper die away from the lower die. When the hydraulic cylinder is started, the piston rod of the hydraulic cylinder drives the punch to move in a straight line, and then drives the upper die to rise and fall, and finally completes the stamping.

[0014] Furthermore, the buffer assembly includes a buffer column, which is fixedly connected to a side of the lower die close to the base plate, and a circular groove is provided on a side of the base plate close to the buffer column. The inner side surface of the circular groove is slidably connected to the surface of the buffer column, and the end of the buffer column away from the lower die extends to the inside of the circular groove. When the lower die descends, the buffer column is driven to descend, and the buffer column slides inside the circular groove. The buffer column is slidably adapted to the circular groove, and can limit the lower die, restricting the lower die to only perform linear motion in the vertical direction, thereby avoiding shaking of the lower die during stamping, thereby ensuring the stamping effect.

[0015] Furthermore, there are several buffer columns, which are evenly distributed on one side of the lower die close to the bottom plate, and there are several circular grooves that correspond to the number of buffer columns evenly distributed. By setting up multiple groups of slidingly adapted buffer columns and circular grooves, a better limiting effect can be achieved, and the shaking of the lower die during stamping can be better avoided.

[0016] Furthermore, a first spring is provided inside several of the circular grooves, and the first spring is fixedly connected to the bottom of the inner side surface of the circular groove, and one end of the first spring away from the bottom of the inner side surface of the circular groove is fixedly connected to one end of the buffer column located inside the circular groove, and the buffer column slides inside the circular groove, thereby driving the first spring to compress, and the first spring buffers the buffer column to ensure the smooth descent of the lower die. The sudden acceleration of the lower die causes the workpiece to fall off. At the same time, after the stamping is completed, under the elastic force of the first spring to restore the deformation, the buffer column and the lower die are reset to prepare for the next stamping.

[0017] Furthermore, the limit assembly includes a column, which is fixedly connected to the top of the base plate, and one side of the column close to the center of the base plate is fixedly connected to the surface of the top plate, a limit groove is provided on the side of the column close to the top plate, and a limit rod is arranged inside the limit groove, and the surface of the limit rod is slidably connected to the inner side surface of the limit groove, and the side of the limit rod close to the upper mold is fixedly connected to the side of the connecting plate away from the upper mold, and the side of the connecting plate away from the upper mold is slidably connected to the surface of the column, and the upper mold moves, driving the connecting plate to move, and the movement of the connecting plate drives the limit rod to slide inside the limit groove, thereby limiting the movement of the connecting plate, and finally the four connecting plates limit the movement of the upper mold to avoid shaking of the upper mold during stamping.

[0018] Furthermore, a ball is provided inside the limiting groove, and the outer surface of the ball is slidingly connected to the inner side surface of the limiting groove, and the inner side surface of the ball is rotatably connected to the surface of the limiting rod. The limiting rod moves, driving the ball to move, and the ball rolls inside the limiting groove to further limit the position. There is rolling friction between the ball and the limiting groove, and the rolling friction is much smaller than the sliding friction, which can effectively reduce the wear of the ball and the contact part between the limiting groove and the ball, thereby avoiding shaking caused by wear. Even if the limiting rod and the contact part between the limiting groove and the limiting rod are worn, the ball can still play a good limiting effect to avoid wear of the upper mold during stamping.

[0019] Furthermore, sliding rods are symmetrically provided on both sides of the ball bearing, and two ends of the sliding rod are respectively fixedly connected to the two ends of the inner side surface of the limiting groove, and the sliding rod passes through the limiting rod, and the inner side surface of the limiting rod is slidably connected to the surface of the sliding rod, and two ends of the sliding rod are fixedly connected to second springs, and two second springs are both sleeved on the surface of the sliding rod, and the sides of the two second springs close to each other are fixedly connected to the surface of the limiting rod, the limiting rod slides inside the limiting groove, and the limiting rod slides on the surface of the sliding rod, and the two second springs respectively generate stretching and contraction, thereby further limiting the movement of the limiting rod, obtaining a better anti-shaking effect, and allowing the upper mold to move more smoothly. At the same time, the setting of the second spring can buffer the movement of the upper mold, avoid sudden movement of the upper mold, and further reduce the shaking generated during stamping.

[0020] Furthermore, the column is provided with a liquid storage tube at one end away from the bottom plate, the liquid storage tube is arranged inside the column, and the liquid storage tube is arranged at the interval of two sliding rods, the liquid storage tube is arranged in a U-shape, both ends of the liquid storage tube pass through the side of the column away from the bottom plate, and the outer surface of the liquid storage tube is fixedly connected to the inner side surface of the column, a narrow groove is opened on the side of the liquid storage tube close to the bottom plate, the narrow groove is arranged in a narrow and long ellipse, and the bent part of the liquid storage tube is made of elastic material, both ends of the liquid storage tube are provided with a first inner cone, and the surface of the first inner cone is fixedly connected to the inner side surface of the liquid storage tube, a second inner cone is provided on the side of the first inner cone close to the ball, and the surface of the second inner cone is fixedly connected to the inner side surface of the liquid storage tube, a filter plate is provided on the side of the second inner cone away from the first inner cone, and the surface of the filter plate is fixedly connected to the inner side surface of the liquid storage tube, the ball rises, the ball contacts the narrow groove, and squeezes the liquid storage tube, the liquid storage tube is deformed, and the first inner cone is hit The two ends of the liquid storage tube are connected with the outside world, and the lubricating oil flows out of the narrow groove and contacts the ball to lubricate the rolling of the ball. As the ball rolls, the lubricating oil is evenly applied to the inside of the limit groove to avoid excessive friction of the ball when it is limited, to avoid wear and tear that causes the upper mold to shake during stamping, and to maintain the stamping effect. The liquid storage tube is set to a U shape. When the two ends of the liquid storage tube are connected with the outside world, a communicating vessel is formed. In order to keep the liquid levels at both ends flush, the lubricating oil will pass through the bent part of the liquid storage tube to ensure that the bent part is always filled with enough lubricating oil, so that after the ball contacts and squeezes the liquid storage tube, the lubricating oil immediately flows out of the narrow groove to avoid the lubricating oil being not applied when the ball is away from the liquid storage tube. The first inner cone is set to prevent the entry of outside air, the contamination of the lubricating oil in the liquid storage tube, and the solidification of the lubricating oil. The second inner cone is set to obtain a better air isolation effect. The filter plate is set to filter the lubricating oil flowing into the bend of the liquid storage tube to prevent the solidified lubricating oil from entering the bend of the liquid storage tube and the clogging of the narrow groove.

[0021] The present invention has the beneficial effects:

[0022] 1. The present invention sets a buffer component, and the buffer column slides inside the circular groove. The buffer column and the circular groove are slidably matched, which can limit the lower die and restrict the lower die to only perform linear motion in the vertical direction, thereby avoiding shaking of the lower die during stamping, thereby ensuring the stamping effect. The first spring buffers the buffer column to ensure the smooth descent of the lower die. The sudden acceleration of the lower die causes the workpiece to fall off. The provision of multiple sets of slidably matched buffer columns and circular grooves can achieve a better limiting effect and better avoid shaking of the lower die during stamping.

[0023] 2. The present invention sets a limit assembly, and the ball rolls inside the limit groove to further limit the position. There is rolling friction between the ball and the limit groove, and the rolling friction is much smaller than the sliding friction. It can effectively reduce the wear of the ball and the contact part between the limit groove and the ball, thereby avoiding shaking caused by wear. Even if the limit rod and the contact part between the limit groove and the limit rod are worn, the ball can still play a good limiting effect, avoiding wear of the upper mold during stamping.

[0024] 3. The present invention sets a sliding rod, and the limit rod slides inside the limit groove. At the same time, the limit rod slides on the surface of the sliding rod. The two second springs respectively generate stretching and contraction, thereby further limiting the movement of the limit rod, obtaining a better anti-shaking effect, and allowing the upper mold to move more smoothly. At the same time, the setting of the second spring can buffer the movement of the upper mold, avoid sudden movement of the upper mold, and further reduce the shaking caused by stamping.

[0025] 4. The present invention sets a liquid storage tube, and the lubricating oil flows out of the narrow groove and contacts the ball to lubricate the rolling of the ball. As the ball rolls, the lubricating oil is evenly applied to the inside of the limit groove to avoid excessive friction of the ball when it is limited, avoid wear and tear that causes shaking of the upper mold during stamping, and maintain the stamping effect. The liquid storage tube is set to be U-shaped. When the two ends of the liquid storage tube are connected to the outside, a communicating vessel is formed. In order to keep the liquid levels at both ends flush, the lubricating oil will pass through the bent part of the liquid storage tube to ensure that the bent part is always filled with enough lubricating oil, so that after the ball contacts and squeezes the liquid storage tube, the lubricating oil will immediately flow out of the narrow groove to avoid the lubricating oil not being applied when the ball is away from the liquid storage tube.

[0026] 5. The present invention sets a first inner cone, which can prevent the entry of outside air, prevent the lubricating oil in the liquid storage tube from being contaminated, and prevent the lubricating oil from solidifying. The second inner cone is set to obtain a better air isolation effect. The filter plate is set to filter the lubricating oil flowing into the bend of the liquid storage tube, prevent the solidified lubricating oil from entering the bend of the liquid storage tube, and prevent the narrow groove from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of a stamping device for manufacturing a metal product of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of the punching mechanism of the present invention;

[0029] Figure 3 This is a schematic diagram of the cross-sectional structure of the bottom plate of the present invention;

[0030] Figure 4 For the present invention Figure 3 A magnified view of part A;

[0031] Figure 5This is a schematic diagram of the structure of the buffer assembly of the present invention;

[0032] Figure 6 It is a schematic diagram of the cross-sectional structure of a column of the present invention;

[0033] Figure 7 It is a schematic diagram of the structure of the limit assembly of the present invention;

[0034] Figure 8 It is a schematic diagram of the ball structure of the present invention;

[0035] Fig. 9 It is a schematic diagram of the structure of the liquid storage tube of the present invention.

[0036] In the figure: 1. bottom plate; 2. top plate; 3. stamping mechanism; 31. upper die; 32. lower die; 33. hydraulic assembly; 331. punch; 332. hydraulic cylinder; 34. buffer assembly; 341. buffer column; 342. circular groove; 343. first spring; 35. limit assembly; 351. column; 352. limit groove; 353. limit rod; 354. ball; 355. slide rod; 356. second spring; 357. liquid storage tube; 358. narrow groove; 359. first inner cone; 3510. second inner cone; 3511. filter plate; 36. connecting plate. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0038] Example 1, please refer to Figure 1-Figure 5 The present invention is a stamping equipment for manufacturing metal products, comprising:

[0039] A bottom plate 1, with a top plate 2 disposed on the top of the bottom plate 1;

[0040] The punching mechanism 3 has a limiting structure for reducing shaking during punching. The punching mechanism 3 is arranged at the interval between the bottom plate 1 and the top plate 2, and the two sides of the punching mechanism 3 are fixedly connected to the sides of the bottom plate 1 and the top plate 2 that are close to each other;

[0041] Wherein, the stamping mechanism 3 comprises:

[0042] An upper mold 31, a side of the upper mold 31 close to the top plate 2 is fixedly connected to a hydraulic assembly 33, and a side of the hydraulic assembly 33 away from the upper mold 31 is fixedly connected to a side of the top plate 2 close to the bottom plate 1;

[0043] A lower mold 32, a side of the lower mold 32 close to the bottom plate 1 is fixedly connected to a buffer assembly 34, and a side of the buffer assembly 34 away from the lower mold 32 is fixedly connected to a side of the bottom plate 1 close to the top plate 2;

[0044] The limit assembly 35 has an oiling structure for following the oiling of the upper die 31 during stamping. The limit assembly 35 is fixedly connected to the top of the bottom plate 1. The side of the limit assembly 35 close to the center of the bottom plate 1 is fixedly connected to the surface of the top plate 2. The side of the limit assembly 35 close to the upper die 31 is fixedly connected to a connecting plate 36. The side of the connecting plate 36 away from the limit assembly 35 is fixedly connected to the surface of the upper die 31.

[0045] The metal product is placed on the top of the lower die 32, and the hydraulic assembly 33 is started. The hydraulic assembly 33 drives the upper die 31 to descend. The descent of the upper die 31 drives the connecting plate 36 to descend. The connecting plate 36 drives the internal structure of the limiting assembly 35 to descend with the upper die 31 to limit the upper die 31 to ensure the smooth descent of the upper die 31 and avoid shaking during stamping. The upper die 31 contacts the workpiece and stamps the workpiece. At the same time, the buffer assembly 34 contracts and the lower die 32 descends accordingly, thereby acting as a buffer to avoid the upper die 31 from suddenly contacting the workpiece, thereby avoiding damage to the workpiece. Finally, the lower die 32 contacts the bottom plate 1, and the upper die 31 applies pressure to the workpiece to complete the stamping process.

[0046] Four limit assemblies 35 are arranged at the interval between the bottom plate 1 and the top plate 2, and the four limit assemblies 35 are arranged at the four corners of the bottom plate 1. The four limit assemblies 35 are fixedly connected with a connecting plate 36 on one side close to the upper mold 31. The four limit assemblies 35 can limit the four corners of the upper mold 31, thereby ensuring the smooth lifting and lowering of the upper mold 31 as a whole, avoiding shaking of the upper mold 31 during stamping, and avoiding affecting the stamping effect.

[0047] The hydraulic assembly 33 includes a hydraulic cylinder 332, which is fixedly connected to the side of the top plate 2 close to the bottom plate 1, and a punch 331 is fixedly connected to the side of the hydraulic cylinder 332 away from the top plate 2, and the punch 331 is fixedly connected to the piston rod of the hydraulic cylinder 332, and the side of the punch 331 away from the hydraulic cylinder 332 is fixedly connected to the side of the upper mold 31 away from the lower mold 32. When the hydraulic cylinder 332 is started, the piston rod of the hydraulic cylinder 332 drives the punch 331 to move in a straight line, and then drives the upper mold 31 to rise and fall, and finally completes the stamping.

[0048] The buffer assembly 34 includes a buffer column 341, which is fixedly connected to the side of the lower mold 32 close to the base plate 1. A circular groove 342 is provided on the side of the base plate 1 close to the buffer column 341. The inner side of the circular groove 342 is slidably connected to the surface of the buffer column 341, and the end of the buffer column 341 away from the lower mold 32 extends to the inside of the circular groove 342. The lower mold 32 descends, driving the buffer column 341 to descend, and the buffer column 341 slides inside the circular groove 342. The buffer column 341 and the circular groove 342 are slidably adapted to limit the lower mold 32, limiting the lower mold 32 to only be able to perform linear motion in the vertical direction, thereby avoiding shaking of the lower mold 32 during stamping, thereby ensuring the stamping effect.

[0049] There are several buffer columns 341, which are evenly distributed on the side of the lower mold 32 close to the base plate 1, and there are several circular grooves 342 evenly distributed corresponding to the number of buffer columns 341. By setting up multiple sets of slidingly adapted buffer columns 341 and circular grooves 342, a better limiting effect can be achieved, and the shaking of the lower mold 32 during stamping can be better avoided.

[0050] A first spring 343 is provided inside each of the circular grooves 342. The first spring 343 is fixedly connected to the bottom of the inner side surface of the circular groove 342. One end of the first spring 343 away from the bottom of the inner side surface of the circular groove 342 is fixedly connected to one end of the buffer column 341 located inside the circular groove 342. The buffer column 341 slides inside the circular groove 342, thereby driving the first spring 343 to be compressed. The first spring 343 buffers the buffer column 341 to ensure the smooth descent of the lower mold 32. The lower mold 32 suddenly accelerates and causes the workpiece to fall off. At the same time, after the stamping is completed, under the elastic force of the first spring 343 to restore the deformation, the buffer column 341 and the lower mold 32 are reset to prepare for the next stamping.

[0051] Example 2, please refer to Figure 1-Figure 9 The limiting assembly 35 includes a column 351, which is fixedly connected to the top of the bottom plate 1, and one side of the column 351 near the center of the bottom plate 1 is fixedly connected to the surface of the top plate 2, and a limiting groove 352 is provided on the side of the column 351 near the top plate 2, and a limiting rod 353 is arranged inside the limiting groove 352, and the surface of the limiting rod 353 is slidably connected to the inner side of the limiting groove 352, and the side of the limiting rod 353 near the upper mold 31 is fixedly connected to the side of the connecting plate 36 away from the upper mold 31, and the side of the connecting plate 36 away from the upper mold 31 is slidably connected to the surface of the column 351, and the upper mold 31 moves, driving the connecting plate 36 to move, and the movement of the connecting plate 36 drives the limiting rod 353 to slide inside the limiting groove 352, thereby limiting the movement of the connecting plate 36, and finally the four connecting plates 36 limit the movement of the upper mold 31 to prevent the upper mold 31 from shaking during stamping.

[0052] A ball 354 is provided inside the limiting groove 352. The outer surface of the ball 354 is slidingly connected to the inner surface of the limiting groove 352, and the inner surface of the ball 354 is rotatably connected to the surface of the limiting rod 353. The limiting rod 353 moves, driving the ball 354 to move. The ball 354 rolls inside the limiting groove 352 to further limit the position. There is rolling friction between the ball 354 and the limiting groove 352. The rolling friction is much smaller than the sliding friction, which can effectively reduce the wear of the ball 354 and the contact part between the limiting groove 352 and the ball 354, thereby avoiding shaking caused by wear. Even if the limiting rod 353 and the contact part between the limiting groove 352 and the limiting rod 353 are worn, the ball 354 can still play a good limiting effect to avoid wear of the upper mold 31 during stamping.

[0053] The two ends of the sliding rod 355 are symmetrically arranged on both sides of the ball bearing 354, and the two ends of the sliding rod 355 are respectively fixedly connected to the two ends of the inner side surface of the limiting groove 352, and the sliding rod 355 passes through the limiting rod 353, and the inner side surface of the limiting rod 353 is slidably connected to the surface of the sliding rod 355, and the two ends of the sliding rod 355 are fixedly connected to the second spring 356, and the two second springs 356 are both sleeved on the surface of the sliding rod 355, and the side of the two second springs 356 close to each other is fixedly connected to the surface of the limiting rod 353, and the limiting rod 353 slides inside the limiting groove 352, and the limiting rod 353 slides on the surface of the sliding rod 355, and the two second springs 356 respectively generate tension and contraction, thereby further limiting the movement of the limiting rod 353, obtaining a better anti-shaking effect, so that the upper mold 31 can move more smoothly, and at the same time, the setting of the second spring 356 can buffer the movement of the upper mold 31, avoid sudden movement of the upper mold 31, and further reduce the shaking generated during stamping.

[0054] A liquid storage tube 357 is provided at one end of the column 351 away from the bottom plate 1. The liquid storage tube 357 is arranged inside the column 351 and at the interval between the two slide bars 355. The liquid storage tube 357 is arranged in a U shape. Both ends of the liquid storage tube 357 pass through the side of the column 351 away from the bottom plate 1, and the outer surface of the liquid storage tube 357 is fixedly connected to the inner side of the column 351. A narrow groove 358 is provided on the side of the liquid storage tube 357 close to the bottom plate 1. The narrow groove 358 is arranged in a narrow and long ellipse. The bent part of the liquid storage tube 357 is made of elastic material. Both ends of the liquid storage tube 357 are provided with a first inner cone 35 9, and the surface of the first inner cone 359 is fixedly connected to the inner side of the liquid storage tube 357, the side of the first inner cone 359 close to the ball 354 is provided with a second inner cone 3510, and the surface of the second inner cone 3510 is fixedly connected to the inner side of the liquid storage tube 357, the side of the second inner cone 3510 away from the first inner cone 359 is provided with a filter plate 3511, and the surface of the filter plate 3511 is fixedly connected to the inner side of the liquid storage tube 357, the ball 354 rises, the ball 354 contacts the narrow groove 358, and squeezes the liquid storage tube 357, the liquid storage tube 357 is deformed, and the first inner cone 359 and the second inner cone are connected. The cylinder 3510 is opened, and the two ends of the liquid storage tube 357 are connected to the outside world. The lubricating oil flows out of the narrow groove 358 and contacts the ball 354 to lubricate the rolling of the ball 354. As the ball 354 rolls, the lubricating oil is evenly applied to the inside of the limiting groove 352 to avoid excessive friction of the ball 354 when it is limited, to avoid wear and tear that causes the upper mold 31 to shake during stamping, and to maintain the stamping effect. The liquid storage tube 357 is set to be U-shaped. When the two ends of the liquid storage tube 357 are connected to the outside world, a communicating vessel is formed. In order to keep the liquid levels at both ends flush, the lubricating oil will pass through the bent part of the liquid storage tube 357 to ensure that the bent part is always filled with There is enough lubricating oil so that after the ball 354 contacts and squeezes the liquid storage tube 357, the lubricating oil immediately flows out of the narrow groove 358, thereby preventing the lubricating oil from not being applied when the ball 354 is away from the liquid storage tube 357. The first inner cone 359 is provided to prevent the entry of outside air, the contamination of the lubricating oil in the liquid storage tube 357, and the solidification of the lubricating oil. The second inner cone 3510 is provided to obtain a better air isolation effect. The filter plate 3511 is provided to filter the lubricating oil flowing into the bend of the liquid storage tube 357, thereby preventing the solidified lubricating oil from entering the bend of the liquid storage tube 357 and preventing the narrow groove 358 from being blocked.

[0055] When in use, place the metal product on the top of the lower die 32, start the hydraulic cylinder 332, the piston rod of the hydraulic cylinder 332 drives the punch 331 to make a linear motion, and then drives the upper die 31 to rise and fall, the upper die 31 moves, drives the connecting plate 36 to move, the movement of the connecting plate 36 drives the limiting rod 353 to slide inside the limiting groove 352, and at the same time, the limiting rod 353 slides on the surface of the sliding rod 355, the two second springs 356 respectively generate tension and contraction, the limiting rod 353 moves, drives the ball 354 to move, the ball 354 rolls inside the limiting groove 352, the lower die 32 descends, drives the buffer column 341 to descend, the buffer column 341 slides inside the circular groove 342, and the buffer column 3 41 slides inside the circular groove 342, thereby driving the first spring 343 to be compressed, and finally the lower die 32 contacts the bottom plate 1, and the upper die 31 applies pressure to the workpiece to complete the stamping process, and the ball 354 rises, and the ball 354 contacts the narrow groove 358 and squeezes the liquid storage tube 357, and the liquid storage tube 357 is deformed. The first inner cone 359 and the second inner cone 3510 are opened, and the two ends of the liquid storage tube 357 are connected to the outside world. The lubricating oil flows out of the narrow groove 358 and contacts the ball 354 to lubricate the rolling of the ball 354. At the same time, after the stamping is completed, under the elastic force of the first spring 343 to restore the deformation, the buffer column 341 and the lower die 32 are reset to prepare for the next stamping.

[0056] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A stamping equipment for manufacturing metal products, characterized in that: include: A bottom plate (1), wherein a top plate (2) is arranged on the top of the bottom plate (1); A punching mechanism (3), the punching mechanism (3) having a limiting structure for reducing shaking during punching, the punching mechanism (3) being arranged at the interval between the bottom plate (1) and the top plate (2), and the two sides of the punching mechanism (3) being fixedly connected to the sides of the bottom plate (1) and the top plate (2) that are close to each other; Wherein, the stamping mechanism (3) comprises: An upper mold (31), wherein a side of the upper mold (31) close to the top plate (2) is fixedly connected to a hydraulic component (33), and a side of the hydraulic component (33) away from the upper mold (31) is fixedly connected to a side of the top plate (2) close to the bottom plate (1); A lower mold (32), wherein a side of the lower mold (32) close to the bottom plate (1) is fixedly connected to a buffer assembly (34), and a side of the buffer assembly (34) away from the lower mold (32) is fixedly connected to a side of the bottom plate (1) close to the top plate (2); A limit assembly (35) having an oiling structure for following the oiling of the upper die (31) during stamping; the limit assembly (35) is fixedly connected to the top of the bottom plate (1); a side of the limit assembly (35) close to the center of the bottom plate (1) is fixedly connected to the surface of the top plate (2); a side of the limit assembly (35) close to the upper die (31) is fixedly connected to a connecting plate (36); a side of the connecting plate (36) away from the limit assembly (35) is fixedly connected to the surface of the upper die (31).

2. A stamping equipment for manufacturing metal products according to claim 1, characterized in that: Four of the limit assemblies (35) are arranged at the interval between the bottom plate (1) and the top plate (2), and the four limit assemblies (35) are arranged at the four corners of the bottom plate (1), and a connecting plate (36) is fixedly connected to one side of the four limit assemblies (35) close to the upper mold (31).

3. A stamping equipment for manufacturing metal products according to claim 2, characterized in that: The hydraulic assembly (33) comprises a hydraulic cylinder (332), wherein the hydraulic cylinder (332) is fixedly connected to a side of the top plate (2) close to the bottom plate (1), a punch (331) is fixedly connected to a side of the hydraulic cylinder (332) away from the top plate (2), and the punch (331) is fixedly connected to a piston rod of the hydraulic cylinder (332), and a side of the punch (331) away from the hydraulic cylinder (332) is fixedly connected to a side of the upper die (31) away from the lower die (32).

4. A stamping equipment for manufacturing metal products according to claim 3, characterized in that: The buffer assembly (34) comprises a buffer column (341), wherein the buffer column (341) is fixedly connected to a side of the lower mold (32) close to the base plate (1), a circular groove (342) is provided on a side of the base plate (1) close to the buffer column (341), an inner side surface of the circular groove (342) is slidably connected to a surface of the buffer column (341), and an end of the buffer column (341) away from the lower mold (32) extends into the interior of the circular groove (342).

5. A stamping equipment for manufacturing metal products according to claim 4, characterized in that: A plurality of the buffer columns (341) are provided, and the plurality of the buffer columns (341) are evenly distributed on one side of the lower mold (32) close to the bottom plate (1), and a plurality of the circular grooves (342) are evenly distributed corresponding to the number of the buffer columns (341).

6. A stamping equipment for manufacturing metal products according to claim 5, characterized in that: A first spring (343) is disposed inside a plurality of the circular grooves (342). The first spring (343) is fixedly connected to the bottom of the inner side surface of the circular groove (342). One end of the first spring (343) away from the bottom of the inner side surface of the circular groove (342) is fixedly connected to one end of the buffer column (341) located inside the circular groove (342).

7. A stamping equipment for manufacturing metal products according to claim 6, characterized in that: The limiting assembly (35) comprises a column (351), wherein the column (351) is fixedly connected to the top of the bottom plate (1), and a side of the column (351) close to the center of the bottom plate (1) is fixedly connected to the surface of the top plate (2), a limiting groove (352) is provided on a side of the column (351) close to the top plate (2), a limiting rod (353) is arranged inside the limiting groove (352), the surface of the limiting rod (353) is slidably connected to the inner side surface of the limiting groove (352), a side of the limiting rod (353) close to the upper mold (31) is fixedly connected to a side of the connecting plate (36) away from the upper mold (31), and a side of the connecting plate (36) away from the upper mold (31) is slidably connected to the surface of the column (351).

8. A stamping equipment for manufacturing metal products according to claim 7, characterized in that: A ball (354) is disposed inside the limiting groove (352), the outer surface of the ball (354) is slidably connected to the inner side surface of the limiting groove (352), and the inner side surface of the ball (354) is rotationally connected to the surface of the limiting rod (353).

9. A stamping equipment for manufacturing metal products according to claim 8, characterized in that: Slide rods (355) are symmetrically arranged on both sides of the ball bearing (354), and the two ends of the slide rod (355) are respectively fixedly connected to the two ends of the inner side surface of the limiting groove (352), and the slide rod (355) passes through the limiting rod (353), and the inner side surface of the limiting rod (353) is slidably connected to the surface of the slide rod (355), and the two ends of the slide rod (355) are fixedly connected to the second spring (356), and the two second springs (356) are both sleeved on the surface of the slide rod (355), and the sides of the two second springs (356) close to each other are fixedly connected to the surface of the limiting rod (353).

10. A stamping equipment for manufacturing metal products according to claim 9, characterized in that: A liquid storage tube (357) is provided at one end of the column (351) away from the bottom plate (1). The liquid storage tube (357) is arranged inside the column (351) and at the interval between the two sliding rods (355). The liquid storage tube (357) is arranged in a U shape. Both ends of the liquid storage tube (357) pass through the side of the column (351) away from the bottom plate (1), and the outer surface of the liquid storage tube (357) is fixedly connected to the inner side surface of the column (351). A narrow groove (358) is provided on the side of the liquid storage tube (357) close to the bottom plate (1). The narrow groove (358) is arranged in a narrow and long elliptical shape. 57) The bent portion is made of an elastic material, and a first inner cone (359) is provided at both ends of the liquid storage tube (357), and the surface of the first inner cone (359) is fixedly connected to the inner side surface of the liquid storage tube (357), and a second inner cone (3510) is provided on the side of the first inner cone (359) close to the ball (354), and the surface of the second inner cone (3510) is fixedly connected to the inner side surface of the liquid storage tube (357), and a filter plate (3511) is provided on the side of the second inner cone (3510) away from the first inner cone (359), and the surface of the filter plate (3511) is fixedly connected to the inner side surface of the liquid storage tube (357).

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