High-speed stamping die with lubricating structure and using method of high-speed stamping die

Abstract

The invention relates to a high-speed stamping die, in particular to a high-speed stamping die with a lubricating structure and a using method of the high-speed stamping die. The oil filter comprises an oil outlet assembly, a connecting disc and a filter assembly. By stamping the oil outlet assembly, lubricating oil accumulated at the inner end of the oil outlet assembly is sprayed to the inner wall of the sleeve shaft, after the connecting disc moves upwards, the side face of the connecting disc makes contact with the inner wall of the sleeve shaft with the lubricating oil, abrasion caused by friction between the connecting disc and the sleeve shaft is reduced under the action of the lubricating oil, and automatic oil supply treatment is achieved; meanwhile, oil stains in the oil liquid are filtered through a filtering assembly, so that the oil stains remain at the inner end of the collecting area, the rest oil liquid is guided into the bottom end of the side face of a connecting disc along the filtering assembly, secondary lubricating treatment is conducted on the outer wall of the connecting disc, and the connecting disc is driven to rotate upwards in cooperation with an inserting shaft; the blocked oil stain is thrown out of the communicating area between the collecting area and the filtering assembly, so that the permeability of the filtering assembly is further improved, and the efficiency of discharging oil liquid outwards along the filtering assembly is improved.

Description

Technical Field

[0001] The invention relates to a high-speed stamping die, in particular to a high-speed stamping die with a lubrication structure and a use method thereof. Background Art

[0002] A stamping die is a special process equipment used to process materials into parts during cold stamping. It is called a cold stamping die. Stamping is a pressure processing method that uses a die installed on a press to apply pressure to the material at room temperature to cause it to separate or plastically deform, thereby obtaining the desired parts. A high-speed stamping die is composed of an upper die and a lower die. During stamping, the upper die is stamped onto the lower die at high speed. There are multiple positioning columns and guide column structures between the upper and lower dies. Under the long-term stamping action of the upper die, the lubricity requirements for the positioning columns and guide column structures are relatively high.

[0003] The traditional lubrication method mainly relies on manual timed lubrication supply, which has low supply efficiency and requires the entire stamping work to be suspended. At the same time, during the supply process, the added lubricant is easy to adhere to dust in the air and debris in the stamping process. After long-term lubrication, oil stains will form between the positioning column and the guide column. Lubricating oil that is exposed to the outside for a long time is also easy to come into contact with dust in the air. Due to its stickiness, the adhered dust will form oil stains after repeated lubrication in the later stage, which greatly reduces the lubrication effect between the two.

[0004] In order to address the above problems, there is an urgent need for a high-speed stamping die with a lubrication structure and a method for using the same. Summary of the invention

[0005] The object of the present invention is to provide a high-speed stamping die with a lubrication structure and a method of using the same to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, one of the purposes of the present invention is to provide a high-speed stamping die with a lubrication structure, including an upper template, a lower template installed below the upper template, a plurality of upper die columns installed at the bottom end of the upper template, and a plurality of sleeve shafts connected to the upper die columns installed at the top and corresponding positions of the lower template, an oil outlet assembly is arranged at the bottom position of the inner end of the sleeve shaft, a plug shaft is arranged at the bottom end of the upper die column to keep plugging and matching with the sleeve shaft, the plug shaft is kept in rotation connection with the upper die column, and a connecting plate is connected to the bottom end of the plug shaft, and when the connecting plate moves downward along the sleeve shaft, the connecting plate contacts with the oil outlet assembly and squeezes the oil outlet assembly, so that the oil stored at its inner end is sprayed to the area through which the connecting plate moves downward; The top of the connecting disk is provided with an opening, and the edge of the opening is in contact with the inner wall of the sleeve shaft. When the connecting disk moves upward synchronously with the plug shaft, the top opening of the connecting disk contacts the oil accumulated on the inner wall of the sleeve shaft, and the excess oil and oil stains are scraped off by the edge of the opening; The inner end of the connecting plate is provided with a collecting area connected to the opening, which is used to cooperate with the opening to collect and process the scraped oil stains and oil liquid in a centralized manner. The collecting area is provided with a filtering component, the top of which is connected to the collecting area, which is used to separate the oil liquid and the oil stains, and the bottom of which is connected to the side of the bottom end of the connecting plate, which is used to guide the collected oil liquid; The outer side of the plug shaft near the bottom end is threadedly connected with the inner top edge of the sleeve shaft. When the threaded areas of the two are in contact, the plug shaft is driven to rotate and move up and down. The centrifugal force generated cooperates with the filter component to throw out the oil accumulated in the collection area, and at the same time, the oil stains blocking the connecting area between the filter component and the collection area are thrown away.

[0007] As a further improvement of the present technical solution, the oil outlet assembly includes an oil collecting air bag and a plurality of oil injection pipes connected to the side of the oil collecting air bag. The oil injection pipe array is embedded in the inner side of the sleeve shaft, and a plurality of oil injection heads are equidistantly arranged on the side of each of the oil injection pipes from top to bottom. The end of the oil injection head is connected to the inner end of the sleeve shaft. A one-way drain valve is arranged between the oil collecting air bag and each of the oil injection pipes. Under the action of the one-way drain valve, the oil collecting air bag is squeezed to supply oil to the inner end of each of the oil injection pipes in one direction. The bottom end of the oil collecting air bag is connected to an oil storage pipe for providing oil. A one-way supply valve is connected between the oil collecting air bag and the oil storage pipe. After the oil collecting air bag is reset and the internal pressure is restored, the oil storage pipe supplies oil to the inner end of the oil collecting air bag in one direction through the one-way supply valve.

[0008] As a further improvement of the technical solution, the top opening of the connection disk is a funnel-shaped structure, and the top cross-sectional dimension of the top opening of the connection disk is larger than the bottom cross-sectional dimension thereof.

[0009] As a further improvement of the present technical solution, the collection area includes a mixing area, a connecting area and an oil pollution area. The mixing area is located directly below the top opening of the connecting disk and is connected to the filtering component. The oil pollution area is opened at the inner end of the inner wall of the mixing area, and the connecting area connects the mixing area and the oil pollution area.

[0010] As a further improvement of the technical solution, the cross section of the connecting area is a V-shaped structure, and an inclined channel is formed between the mixing area and the oil pollution area, so that the top surface of the oil pollution area is higher than the top surface of the mixing area.

[0011] As a further improvement of the present technical solution, the filter assembly includes a filter plate, which is arranged at the inner end of the mixing zone, and a plurality of oil filter holes are arranged in an array at the top end of the filter plate, an oil filter tube for free passage of oil is arranged at the inner end of the filter hole, and a liquid guide tube is connected between the bottom ends of the oil filter tubes in adjacent array areas, and the end of the liquid guide tube passes through the outer wall of the connecting plate and maintains conduction with the inner end of the sleeve shaft.

[0012] As a further improvement of the technical solution, the liquid guide tube is obliquely embedded in the inner side of the connecting plate, and the height of one end of the liquid guide tube close to the oil filter tube is higher than the height of one end of the oil filter tube close to the outer wall of the connecting plate.

[0013] As a further improvement of the technical solution, an oil drain pipe is provided on the outer side of the connecting plate, and the end of the liquid guide pipe extends into the inner end of the oil drain pipe and maintains contact with the inner end of the oil drain pipe.

[0014] As a further improvement of the technical solution, an oil drain pipe is provided between the bottom end of the oily area and the liquid guide pipe, and the inner diameter of the oil drain pipe is consistent with the inner diameter of the oil filter pipe.

[0015] The second object of the present invention is to provide a lubrication method for a high-speed stamping die having a lubrication structure, comprising the following steps: S1. The upper mold plate is driven to move up and down by the hydraulic assembly, and the mold material is punched in cooperation with the lower mold plate. The upper mold plate drives each upper mold column to move up and down, and the upper mold column drives the connecting plate to perform a pulling and inserting movement along the inner end of the sleeve shaft at the corresponding position through the plug shaft; S2, during the downward movement of the connecting plate, it contacts the top of the oil collecting airbag and continues to move downward to exert pressure on it, causing the oil collecting airbag to compress downward, increasing its internal pressure. The lubricating oil accumulated at the inner end of the oil collecting airbag will enter the inner ends of each injection pipe, and be guided to the inner end of the sleeve shaft through the injection head connected to the side of the injection pipe, and adhere to the side of the connecting plate, the inner wall of the sleeve shaft and the outer wall of the oil collecting airbag. S3, when the connecting plate moves upward, the edge of its top opening slides against the inner wall of the sleeve shaft, and part of the adhered lubricating oil is scraped by the edge of the top opening and flows into the mixing area at the inner end of the connecting plate, and the oil is discharged through each oil filter pipe and the liquid guide pipe; S4. The upper template is driven to move upward further through the hydraulic assembly, so that the plug shaft and the sleeve shaft form a threaded connection. The plug shaft drives the connecting plate to rotate upward. The centrifugal force generated will drive the blocked oil stains to be thrown out of the mixing area and introduced into the inner end of the oil stain area through the connecting area.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the high-speed stamping die with a lubrication structure and the use method thereof, by stamping the oil outlet component, the lubricating oil accumulated at the inner end thereof is caused to spray out to the inner wall of the sleeve shaft. After the connecting plate moves up, its side surface contacts the inner wall of the sleeve shaft to which the lubricating oil adheres. Under the action of the lubricating oil, the friction and wear between the two are reduced, thereby realizing automatic oil supply processing. At the same time, the oil stains in the oil are filtered through the filter component, so that the oil stains remain at the inner end of the collection area. The remaining oil will be introduced into the bottom end of the side of the connecting plate along the filter component, and the outer wall of the connecting plate will be lubricated for the second time. The connecting plate is driven to rotate upward by the plug shaft, so that the blocked oil stains are thrown out of the connecting area between the collection area and the filter component, thereby further improving the permeability of the filter component and increasing the efficiency of oil discharge outward along the filter component.

[0017] 2. In the high-speed stamping die with a lubrication structure and the method of using the same, the connection area is designed to be a V-shaped structure, thereby forming an inclined channel from bottom to top between the mixing area and the oil pollution area. After the flowing oil passes through the inclined surface, the difference between high and low potential energies is used to consume the remaining kinetic energy in the flow process, so that the oil flows back to the inner end of the mixing area along the inclined surface and is filtered through the filter component at the inner end.

[0018] 3. In the high-speed stamping die with a lubrication structure and the method of using the same, the liquid guide tube is tilted and arranged on the inner side of the connecting plate, and the height of one end of the liquid guide tube close to the oil filter tube is higher than the height of one end of the oil filter tube close to the outer wall of the connecting plate, so that a height difference is formed at both ends of the liquid guide tube, which promotes the oil to flow from high to low, improves its flow efficiency, and improves the oil discharge effect.

[0019] 4. In the high-speed stamping die with a lubrication structure and the method of using the same, the oil and oil stains entering the inner end of the oily area are subjected to secondary filtration treatment through the provided oil drain pipe. Part of the oil will be discharged from the inner end of the oily area along the oil drain pipe, and then introduced into the inner end of the liquid guide pipe along the oil drain pipe, and discharged through the liquid guide pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 2 This is a schematic plan view of the overall structure of Embodiment 1 of the present invention; Figure 3 For Example 1 of the present invention Figure 2 A local enlarged view of point A; Figure 4 For Example 1 of the present invention Figure 3 A partial enlarged view of point B; Figure 5 It is a cross-sectional view of the upper mold column structure of Example 1 of the present invention; Figure 6 For Example 1 of the present invention Figure 5A partial enlarged view of point C; Figure 7 For Example 1 of the present invention Figure 5 A partial enlarged view of point D; Figure 8 For Example 1 of the present invention Figure 5 A local enlarged view of point E; Fig. 9 This is a cross-sectional view of the sleeve shaft structure of Example 1 of the present invention.

[0021] The meaning of each number in the figure is: 10. Put on the template; 20. Lower template; 210. Oil storage pipe; 30, upper die column; 310, plug shaft; 320, connecting plate; 320A, mixing area; 320B, connecting area; 320C, oil pollution area; 321, filter plate; 322, oil filter pipe; 323, oil drain pipe; 324, oil drain pipe; 40. Sleeve shaft; 410. Oil collecting air bag; 420. Fuel injection pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention. Example

[0024] See also Figure 1-Figure 3As shown, one of the purposes of this embodiment is to provide a high-speed stamping die with a lubrication structure, including an upper die plate 10, a lower die plate 20 installed below the upper die plate 10, a plurality of upper die columns 30 installed at the bottom end of the upper die plate 10, and a plurality of sleeve shafts 40 connected to the upper die column 30 installed at the top and corresponding positions of the lower die plate 20, an oil outlet assembly is arranged at the bottom position of the inner end of the sleeve shaft 40, a plug shaft 310 which is plugged and matched with the sleeve shaft 40 is arranged at the bottom end of the upper die column 30, the plug shaft 310 is rotationally connected with the upper die column 30, and a connecting plate 320 is connected to the bottom end of the plug shaft 310, when the connecting plate 320 moves downward along the sleeve shaft 40, the connecting plate 320 contacts the oil outlet assembly and squeezes the oil outlet assembly, so that the oil stored at its inner end is sprayed to the area through which the connecting plate 320 moves downward; The top of the connecting disk 320 is provided with an opening, and the edge of the opening is in contact with the inner wall of the sleeve shaft 40. When the connecting disk 320 moves upward synchronously with the plug shaft 310, the top opening thereof contacts the oil accumulated on the inner wall of the sleeve shaft 40, and the excess oil and oil stains are scraped off by the edge of the opening. The inner end of the connecting plate 320 is provided with a collecting area connected to the opening, which is used to cooperate with the opening to collect and process the scraped oil stains and oil liquid in a centralized manner. The collecting area is provided with a filtering component, the top of which is connected to the collecting area, which is used to separate the oil liquid and the oil stains, and the bottom of which is connected to the side of the bottom end of the connecting plate 320, which is used to guide the collected oil liquid; The outer side of the plug shaft 310 near the bottom end is threadedly connected to the inner top edge of the sleeve shaft 40. When the threaded areas of the two are in contact, the plug shaft 310 is driven to rotate and move up and down. The centrifugal force generated cooperates with the filter component to throw out the oil accumulated in the collection area, and at the same time, the oil stains that clog the connecting area between the filter component and the collection area are thrown away.

[0025] During specific use, during high-speed stamping, the upper template 10 is driven up and down by the hydraulic component to cooperate with the lower template 20 to stamp the mold material. During this process, the upper template 10 drives each upper mold column 30 to move up and down, and the upper mold column 30 drives the connecting plate 320 through the plug shaft 310 to perform a pulling and inserting movement along the inner end of the sleeve shaft 40 at the corresponding position. When it moves downward, it stamps the oil outlet component, causing the lubricating oil accumulated at its inner end to spray out to the inner wall of the sleeve shaft 40. After the connecting plate 320 moves up, its side contacts the inner wall of the sleeve shaft 40 that is adhered to the lubricating oil. Under the action of the lubricating oil, the friction and wear between the two are reduced, and automatic oil supply processing is realized at the same time.

[0026] Depend on Figure 3As shown, during the upward movement of the connecting disk 320, the edge of its top opening slides in contact with the inner wall of the sleeve shaft 40, and part of the adhered lubricating oil is scraped through the edge of the top opening and flows into the inner end of the collection area at the inner end of the connecting disk 320. The inner end of the collection area is provided with a filter component, and the oil stains in the oil are filtered by the filter component so that the oil stains remain at the inner end of the collection area. The remaining oil will be introduced into the bottom end of the side of the connecting disk 320 along the filter component, and will flow out to the area between the outer wall of the connecting disk 320 and the inner wall of the sleeve shaft 40 for secondary lubrication.

[0027] As the stamping work continues, the amount of oil stains accumulated at the inner end of the collection area gradually increases. Some oil stains are easily accumulated in the connecting area between the collection area and the filter component, resulting in some oil being blocked and unable to be discharged smoothly. Therefore, in order to reduce blockage during specific use, Figure 4 As shown, the upper template 10 is further moved upward by the hydraulic component, so that the plug shaft 310 cooperates with the sleeve shaft 40 to form a threaded connection. At this time, the plug shaft 310 drives the connecting plate 320 to rotate upward, and the generated centrifugal force will directly act on the collection area, so that the blocked oil stains move toward the inner wall of the collection area and are thrown out of the connecting area between the collection area and the filter assembly. At this time, the upper template 10 is driven downward by the hydraulic component again, and the insertion and pulling work between the plug shaft 310 and the sleeve shaft 40 is restored, and the mold material is stamped again. During the downward movement, the plug shaft 310 and the sleeve shaft 40 are threadedly connected for the second time to form rotation, and the generated centrifugal force is used to throw away the blocked oil stains again, thereby further improving the permeability of the filter assembly and increasing the efficiency of oil discharge along the filter assembly.

[0028] Furthermore, the oil outlet assembly includes an oil collecting air bag 410 and a plurality of oil injection pipes 420 connected to the side of the oil collecting air bag 410. The oil injection pipes 420 are arrayed and embedded in the inner side of the sleeve shaft 40, and a plurality of oil injection heads are equidistantly arranged on the side of each oil injection pipe 420 from top to bottom. The ends of the oil injection heads are connected to the inner end of the sleeve shaft 40. A one-way drain valve is arranged between the oil collecting air bag 410 and each oil injection pipe 420. Under the action of the one-way drain valve, the oil collecting air bag 410 is squeezed and the oil is supplied to the inner end of each oil injection pipe 420 in a one-way manner. The bottom end of the oil collecting air bag 410 is connected to an oil storage pipe 210 for supplying oil. A one-way supply valve is connected between the oil collecting air bag 410 and the oil storage pipe 210. After the oil collecting air bag 410 is reset and the internal pressure is restored, the oil storage pipe 210 supplies oil to the inner end of the oil collecting air bag 410 in a one-way manner through the one-way supply valve. Depend on Fig. 9As shown, since the oil collecting airbag 410 is arranged at the inner end of the sleeve shaft 40, when the connecting plate 320 moves downward along the inner end of the sleeve shaft 40, it will contact the top of the oil collecting airbag 410 and continue to move downward to exert pressure on it, causing the oil collecting airbag 410 to be compressed downward, and its internal pressure increases. During the pressure relief process, each oil injection pipe 420 is connected through the one-way discharge valve, and the channel between the oil collecting airbag 410 and the oil storage pipe 210 is sealed through the one-way liquid supply valve. Therefore, after being squeezed, the lubricating oil accumulated at the inner end of the oil collecting airbag 410 will enter the inner end of each oil injection pipe 420, and be guided to the inner end of the sleeve shaft 40 through the oil injection head connected to the side of the oil injection pipe 420, and adhere to the side of the connecting plate 320, the inner wall of the sleeve shaft 40 and the outer wall of the oil collecting airbag 410, which can not only The inner wall and the outer wall of the connecting disk 320 play a lubricating role. At the same time, the lubricating oil adhering to the outer wall of the oil collecting airbag 410 can also reduce the friction resistance formed when the oil collecting airbag 410 is reset, thereby improving its reset effect. After the stamping work is completed, the connecting disk 320 is reset synchronously with the plug shaft 310, and the oil collecting airbag 410 is separated from the top of the connecting disk 320, and the external force squeezing effect is lost. At this time, the oil collecting airbag 410 is reset, and the one-way drain valve seals the channels between the various oil injection pipes 420, and the one-way liquid supply valve opens the channel between the oil collecting airbag 410 and the oil storage pipe 210. At this time, the inside of the oil collecting airbag 410 is in a negative pressure state, and the oil at the inner end of the oil storage pipe 210 will be drawn into it, and the oil injection pipe 420 and the connecting disk 320 will cooperate to continuously supply liquid to the inner end of the sleeve shaft 40.

[0029] In order to further improve the contact effect between the top wall of the connecting plate 320 and the inner wall of the sleeve shaft 40, Figure 3-Figure 4 As shown, further, the top opening of the connecting disk 320 is a funnel-shaped structure, and the top cross-sectional size of the top opening of the connecting disk 320 is larger than the bottom cross-sectional size. The top opening of the connecting disk 320 is designed to be a funnel-shaped structure, so that the contact area between the edge of the opening of the connecting disk 320 and the inner wall of the sleeve shaft 40 is increased, and at the same time, the obstruction of excess oil and oil stains entering the inner end of the sleeve shaft 40 through the opening is reduced, thereby improving the collection effect of excess oil and oil stains.

[0030] Specifically, the collection area includes a mixing area 320A, a connecting area 320B and an oil pollution area 320C. The mixing area 320A is located directly below the top opening of the connecting plate 320 and is connected to the filter assembly. The oil pollution area 320C is opened at the inner end of the inner wall of the mixing area 320A. The connecting area 320B connects the mixing area 320A and the oil pollution area 320C. Depend on Figure 4As shown, the oil and oil stains flowing in through the top opening of the connecting disk 320 will enter the mixing zone 320A, where part of the oil will be guided out of the inner end of the mixing zone 320A through the filter assembly, while part of the oil and all of the oil stains will remain at the inner end of the mixing zone 320A. This is because the oil stains will clog the connecting position between the mixing zone 320A and the filter assembly after flowing in, causing the oil in this area to be unable to be filtered smoothly, until the plug shaft 310 is further moved upward to form a threaded connection with the inner wall of the sleeve shaft 40, the centrifugal force generated will act on the oil and oil stains in the mixing zone 320A, causing them to flow toward the position close to the connecting zone 320B, and be introduced into the inner end of the oil stain zone 320C through the connecting zone 320B, completing the cleaning of the blocked oil, maintaining the permeability between the filter assembly and the mixing zone 320A, and accelerating the efficiency of the oil being discharged through the filter assembly.

[0031] Since the mixing area 320A and the oily area 320C are connected through the connecting area 320B, the oil collected through the opening of the connecting plate 320 can easily continue to move in the inner end of the mixing area 320A by using the unconsumed kinetic energy in the process of falling into the mixing area 320A, and directly discharge into the inner end of the oily area 320C through the connecting area 320B, resulting in a significant reduction in the amount of oil passing through the filter assembly. In order to solve this problem, Figure 7 As shown, the cross section of the connection area 320B is a V-shaped structure, and an inclined channel is formed between the mixing area 320A and the oily area 320C, so that the top surface of the oily area 320C is higher than the top surface of the mixing area 320A. By designing the connection area 320B to be a V-shaped structure, an inclined channel from bottom to top is formed between the mixing area 320A and the oily area 320C. After the flowing oil passes through the inclined surface, the difference between the high and low potential energies is used to consume the remaining kinetic energy in the flow process, so that it flows back to the inner end of the mixing area 320A along the inclined surface, and is filtered through the filter assembly at the inner end.

[0032] In addition, the filter assembly includes a filter plate 321, which is arranged at the inner end of the mixing area 320A, and a plurality of oil filter holes are arranged in an array at the top of the filter plate 321. An oil filter pipe 322 for free passage of oil is arranged at the inner end of the filter hole. The bottom ends of the oil filter pipes 322 in adjacent array areas are connected by a liquid guide pipe, and the end of the liquid guide pipe passes through the outer wall of the connecting plate 320 and maintains conduction with the inner end of the sleeve shaft 40. Depend on Figure 7As shown, after the oil and oil stains enter the inner end of the mixing zone 320A along the top opening of the connecting plate 320, they will continue to flow along the bottom of the inner end of the mixing zone 320A until they contact the top opening of the oil filter tube 322. The inner diameter of the oil filter tube 322 is smaller than the size of the oil stains, so the oil stains flowing through cannot enter the inner end of the oil filter tube 322. At this time, only a portion of the oil will be introduced into the inner end of the liquid guide tube along the oil filter tube 322, and discharged from the inner end of the connecting plate 320 through the liquid guide tube, and re-introduced into the area between the outer wall of the connecting plate 320 and the inner wall of the sleeve shaft 40 for secondary lubrication treatment, which not only reduces the exposure time of the oil to the outside and reduces the possibility of contact with dust, but also can promptly remove the oil stains mixed in the oil from the lubrication area, and cooperate with the oil filter tube 322 and the mixing zone 320A for filtering treatment, so that the oil stains remain at the inner end of the connecting plate 320, and the collected oil is re-discharged to the outside through the oil filter tube 322.

[0033] In order to further improve the guiding effect of the guiding tube and reduce the residence time of the oil at the inner end of the guiding tube, Figure 7 As shown, further, the liquid guide tube is obliquely embedded on the inner side of the connecting plate 320, and the height of one end of the liquid guide tube close to the oil filter tube 322 is higher than the height of one end of the oil filter tube 322 close to the outer wall of the connecting plate 320. The liquid guide tube is obliquely set on the inner side of the connecting plate 320, and the height of one end of the liquid guide tube close to the oil filter tube 322 is higher than the height of one end of the oil filter tube 322 close to the outer wall of the connecting plate 320, so that a height difference is formed at both ends of the liquid guide tube, which promotes the oil to flow from high to low, improves its flow efficiency, and improves the oil discharge effect.

[0034] In order to improve the drainage effect of the catheter, Figure 7 As shown, further, an oil drain pipe 324 is provided on the outer side of the connecting plate 320, and the end of the liquid guide pipe extends into the inner end of the oil drain pipe 324 and keeps contact with the inner end of the oil drain pipe 324. The oil drain pipe 324 is provided to reserve a gap between the outer wall of the connecting plate 320 and the inner wall of the upper mold column 30, thereby reducing the obstruction of the oil drain pipe 323 to discharge the oil outward, and further improving the oil extraction efficiency.

[0035] After part of the oil rotates between the plug shaft 310 and the sleeve shaft 40, the centrifugal force generated causes the oil that has not yet been discharged through the oil filter pipe 322 to be thrown into the inner end of the oil stain area 320C along with the oil stains, which not only occupies the storage space for the oil stains at the inner end of the oil stain area 320C, but also reduces the utilization rate of this part of the oil. Specifically, an oil drain pipe 323 is arranged between the bottom end of the oil stain area 320C and the liquid guide pipe. The inner diameter of the oil drain pipe 323 is consistent with the inner diameter of the oil filter pipe 322. The oil and oil stains entering the inner end of the oil stain area 320C are subjected to secondary filtration treatment through the arranged oil drain pipe 323. Part of the oil will be discharged from the inner end of the oil stain area 320C along the oil drain pipe 323, and will be introduced into the inner end of the liquid guide pipe along the oil drain pipe 323, and discharged through the liquid guide pipe.

[0036] The second purpose of this embodiment is to provide a lubrication method for a high-speed stamping die having a lubrication structure, comprising the following method steps: S1. The upper mold plate 10 is driven to move up and down by the hydraulic assembly, and the mold material is punched by the lower mold plate 20. The upper mold plate 10 drives each upper mold column 30 to move up and down, and the upper mold column 30 drives the connecting plate 320 to perform a pulling and inserting movement along the inner end of the sleeve shaft 40 at the corresponding position through the insertion shaft 310; S2, during the downward movement of the connecting plate 320, it contacts the top of the oil collecting airbag 410, and continues to move downward to exert pressure on it, causing the oil collecting airbag 410 to compress downward, and the internal pressure thereof increases. The lubricating oil accumulated at the inner end of the oil collecting airbag 410 will enter the inner ends of each oil injection pipe 420, and be guided to the inner end of the sleeve shaft 40 through the oil injection head connected to the side of the oil injection pipe 420, and adhere to the side of the connecting plate 320, the inner wall of the sleeve shaft 40, and the outer wall of the oil collecting airbag 410; S3, during the upward movement of the connecting plate 320, the edge of its top opening slides against the inner wall of the sleeve shaft 40, and part of the adhered lubricating oil is scraped through the edge of the top opening and flows into the mixing area 320A at the inner end of the connecting plate 320, and the oil is discharged through each oil filter pipe 322 and the liquid guide pipe; S4. The upper template 10 is further moved upward by the hydraulic assembly, so that the plug shaft 310 cooperates with the sleeve shaft 40 to form a threaded connection. The plug shaft 310 drives the connecting plate 320 to rotate upward. The centrifugal force generated will drive the blocked oil stains to be thrown out of the mixing area 320A and introduced into the inner end of the oil stain area 320C through the connecting area 320B.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A high-speed stamping die with a lubrication structure, comprising an upper die plate (10), a lower die plate (20) installed below the upper die plate (10), a plurality of upper die columns (30) installed at the bottom end of the upper die plate (10), and a plurality of sleeve shafts (40) connected to the upper die columns (30) installed at the top end of the lower die plate (20) and at corresponding positions, wherein an oil outlet assembly is arranged at the bottom position of the inner end of the sleeve shaft (40), an insert shaft (310) which is plugged and matched with the sleeve shaft (40) is arranged at the bottom end of the upper die column (30), the insert shaft (310) is rotationally connected to the upper die column (30), and a connecting plate (320) is connected to the bottom end of the insert shaft (310), and when the connecting plate (320) moves downward along the sleeve shaft (40), the connecting plate (320) contacts the oil outlet assembly and squeezes the oil outlet assembly, so that the oil stored at the inner end thereof is sprayed to the area through which the connecting plate (320) moves downward, characterized in that: The top of the connecting disk (320) is provided with an opening, and the edge of the opening is in contact with the inner wall of the sleeve shaft (40). When the connecting disk (320) moves upward synchronously with the insertion shaft (310), the top opening thereof contacts the oil accumulated on the inner wall of the sleeve shaft (40), and the excess oil and oil stains are scraped off by using the edge of the opening; The inner end of the connection disk (320) is provided with a collection area which is in communication with the opening and is used to cooperate with the opening to centrally collect and process the scraped oil stains and oil liquid; the collection area is provided with a filter component, the top of which is in communication with the collection area and is used to separate the oil liquid and the oil stains, and the bottom of which is in communication with the side of the bottom end of the connection disk (320) and is used to guide the collected oil liquid; The outer side of the plug shaft (310) near the bottom end is threadedly connected to the inner top edge of the sleeve shaft (40). When the threaded areas of the two are in contact, the plug shaft (310) is driven to rotate and move up and down. The centrifugal force generated cooperates with the filter component to throw out the oil accumulated in the collection area, and at the same time, the oil stains that clog the connection area between the filter component and the collection area are thrown away.

2. The high-speed stamping die with a lubrication structure according to claim 1, characterized in that: The oil outlet assembly comprises an oil collecting air bag (410) and a plurality of oil injection pipes (420) connected to the side of the oil collecting air bag (410). The oil injection pipes (420) are arrayed and embedded in the inner side of the sleeve shaft (40), and a plurality of oil injection heads are equidistantly arranged from top to bottom on the side of each of the oil injection pipes (420). The ends of the oil injection heads are connected to the inner end of the sleeve shaft (40). A one-way liquid discharge valve is arranged between the oil collecting air bag (410) and each of the oil injection pipes (420). Under the action, the oil collecting air bag (410) is maintained to be squeezed and oil is supplied to the inner end of each of the oil injection pipes (420) in one direction. The bottom end of the oil collecting air bag (410) is connected to an oil storage pipe (210) for supplying oil. A one-way liquid supply valve is connected between the oil collecting air bag (410) and the oil storage pipe (210). After the oil collecting air bag (410) is reset and the internal pressure is restored, the oil storage pipe (210) supplies oil to the inner end of the oil collecting air bag (410) in one direction through the one-way liquid supply valve.

3. The high-speed stamping die with a lubrication structure according to claim 1, characterized in that: The top opening of the connection disk (320) is a funnel-shaped structure, and the top cross-sectional dimension of the top opening of the connection disk (320) is greater than the bottom cross-sectional dimension thereof.

4. The high-speed stamping die with a lubrication structure according to claim 1, characterized in that: The collection area comprises a mixing area (320A), a connecting area (320B) and an oil pollution area (320C); the mixing area (320A) is located directly below the top opening of the connecting plate (320) and is connected to the filter assembly; the oil pollution area (320C) is opened at the inner end of the inner wall of the mixing area (320A); and the connecting area (320B) connects the mixing area (320A) and the oil pollution area (320C).

5. The high-speed stamping die with a lubrication structure according to claim 4, characterized in that: The cross section of the connecting area (320B) is a V-shaped structure, and an inclined channel is formed between the mixing area (320A) and the oil pollution area (320C), so that the top surface of the oil pollution area (320C) is higher than the top surface of the mixing area (320A).

6. The high-speed stamping die with a lubrication structure according to claim 5, characterized in that: The filter assembly comprises a filter plate (321), the filter plate (321) being arranged at the inner end of the mixing zone (320A), and a plurality of oil filter holes are arranged in an array at the top end of the filter plate (321), an oil filter pipe (322) for free passage of oil is arranged at the inner end of the filter hole, and a liquid guide pipe is connected between the bottom ends of the oil filter pipes (322) in adjacent array areas, and the end of the liquid guide pipe passes through the outer wall of the connecting plate (320) and maintains conduction with the inner end of the sleeve shaft (40).

7. The high-speed stamping die with a lubrication structure according to claim 6, characterized in that: The liquid guide tube is obliquely embedded inside the connection plate (320), and the height of one end of the liquid guide tube close to the oil filter tube (322) is higher than the height of one end of the oil filter tube (322) close to the outer wall of the connection plate (320).

8. The high-speed stamping die with a lubrication structure according to claim 7, characterized in that: An oil drain pipe (324) is provided on the outside of the connection plate (320), and the end of the liquid guide pipe extends into the inner end of the oil drain pipe (324) and maintains contact with the inner end of the oil drain pipe (324).

9. The high-speed stamping die with a lubrication structure according to claim 8, characterized in that: An oil drain pipe (323) is provided between the bottom end of the oily area (320C) and the liquid guide pipe, and the inner diameter of the oil drain pipe (323) is consistent with the inner diameter of the oil filter pipe (322).

10. A lubrication method for a high-speed stamping die having a lubrication structure, characterized in that: The method comprises the following steps: S1. The upper mold plate (10) is driven to move up and down by a hydraulic component, and the mold material is punched in cooperation with the lower mold plate (20). The upper mold plate (10) drives each upper mold column (30) to move up and down, and the upper mold column (30) drives the connecting plate (320) to perform a pulling and inserting movement along the inner end of the sleeve shaft (40) at the corresponding position through the insertion shaft (310); S2, when the connecting plate (320) moves downward, it contacts the top of the oil collecting air bag (410), and continues to move downward to exert pressure on it, causing the oil collecting air bag (410) to be compressed downward, and the internal pressure thereof increases. The lubricating oil accumulated at the inner end of the oil collecting air bag (410) will enter the inner ends of the respective oil injection pipes (420), and be guided to the inner end of the sleeve shaft (40) through the oil injection heads connected to the sides of the oil injection pipes (420), and adhere to the sides of the connecting plate (320), the inner wall of the sleeve shaft (40), and the outer wall of the oil collecting air bag (410); S3, when the connecting plate (320) moves upward, the edge of its top opening slides against the inner wall of the sleeve shaft (40), and part of the adhered lubricating oil is scraped through the edge of the top opening and flows into the mixing area (320A) at the inner end of the connecting plate (320), and the oil is discharged through each oil filter pipe (322) and the liquid guide pipe; S4. The upper mold plate (10) is further moved upward by the hydraulic assembly, so that the plug shaft (310) cooperates with the sleeve shaft (40) to form a threaded connection. The plug shaft (310) drives the connecting plate (320) to rotate upward. The centrifugal force generated will drive the blocked oil stains to be thrown out of the mixing area (320A) and introduced into the inner end of the oil stain area (320C) through the connecting area (320B).

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