A punching device for stainless steel parts

Abstract

This invention belongs to the field of punching machine technology, specifically a punching device for stainless steel parts. It includes a main body, a support platform fixedly connected to the lower surface of the main body, a lower die fixedly connected to the upper surface of the support platform, a movable platform slidably connected to the inner upper surface of the main body, a connecting plate fixedly connected to the lower surface of the movable platform, an elastic telescopic rod fixedly connected to the lower surface of the connecting plate, a punch fixedly connected to the telescopic end of the elastic telescopic rod, a grinding plate fixedly connected to the side surface of the punch, a rotating rod rotatably connected inside the connecting plate, a protruding plate fixedly connected to the rotating rod, and rollers rotatably connected to the inner wall of the punch. By driving the punch and grinding plate to reciprocate up and down, the hole wall can be ground multiple times. Through multiple grinding operations, manual grinding can be reduced, lowering labor costs.

Description

Technical Field

[0001] This invention belongs to the field of punching machine technology, specifically a punching device for stainless steel parts. Background Technology

[0002] Due to the high yield strength and work hardening properties of stainless steel, laser cutting is inefficient. However, punching machines can efficiently complete punching and cutting operations by concentrating stress through dies. At the same time, punching machines can ensure hole position accuracy, making them suitable for large-scale stainless steel parts production.

[0003] A patent with publication number CN118492175B discloses a punching machine for automotive parts, including a punching machine body and a punching unit fixedly installed on the punching machine body. A computer control unit is fixedly installed on the punching machine body, and the computer control unit is used to control the punching unit to punch the automotive parts. A punching seat is also fixedly installed on the punching machine body, and the punching seat is located below the punching unit. A punching head assembly is fixedly installed at the bottom of the punching unit, and the punching head assembly can be used to grind the automotive parts after punching.

[0004] The aforementioned automotive parts punching machine, by setting a punching head assembly, can perform a grinding action on the punched area of ​​the automotive parts with each downward punching motion, removing burrs from the automotive parts after punching.

[0005] When the aforementioned automotive parts punching machine is in use, it drives the punching head assembly to rotate to grind the inner wall of the round hole. When the shape of the punching hole changes to a square hole, the punching head can hardly grind the inner wall of the hole. Therefore, additional grinding equipment is required, which increases the production cycle and causes a decrease in the production efficiency of stainless steel parts.

[0006] Therefore, the present invention provides a punching device for stainless steel parts. Summary of the Invention

[0007] In order to overcome the shortcomings of the existing technology and solve the problem mentioned in the background technology that the inability to grind square holes or other irregular holes increases the production cycle and thus reduces the production efficiency of stainless steel parts.

[0008] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a stainless steel punching device, comprising a body, a support platform fixedly connected to the lower surface of the body, a lower die fixedly connected to the upper surface of the support platform, a movable platform slidably connected to the inner upper surface of the body, a connecting plate fixedly connected to the lower surface of the movable platform, an elastic telescopic rod fixedly connected to the lower surface of the connecting plate, a punch fixedly connected to the telescopic end of the elastic telescopic rod, a grinding plate fixedly connected to the side surface of the punch, a rotating rod rotatably connected inside the connecting plate, a protruding plate fixedly connected to the rotating rod, and a roller rotatably connected to the inner wall of the punch.

[0009] Preferably, a connecting rod is fixedly connected inside the connecting plate, a pressure plate is fixedly connected to one end of the connecting rod, a pressure block is fixedly connected to the lower surface of the pressure plate, and a first spring is fixedly connected between the pressure plate and the connecting plate.

[0010] Preferably, a gear is fixedly connected to one end of the rotating rod, a rack is slidably connected to the upper surface of the connecting plate, the rack and the gear mesh with each other, and a second spring is fixedly connected between the rack and the lower surface of the moving platform.

[0011] Preferably, a limiting plate is fixedly connected to the upper surface of the support platform, a limiting groove is provided inside the limiting plate, a limiting wheel is slidably connected inside the limiting groove, and the limiting wheel is rotatably connected to one end of the rack.

[0012] Preferably, the limiting groove includes a vertical section, and a serpentine section is provided on one side of the vertical section, and one end of the vertical section and the serpentine section are connected.

[0013] Preferably, a turntable is rotatably connected to the inner lower surface of the punch, a sealing tube is slidably connected inside the turntable, a piston rod is slidably connected inside the sealing tube, one end of the piston rod is fixedly connected to the upper surface of the turntable, and the size of the piston rod matches the inner wall size of the sealing tube.

[0014] Preferably, one end of the sealing tube is fixedly connected to a feed check valve, one end of the feed check valve is fixedly connected to a feed pipe, and one end of the feed pipe is tapered.

[0015] Preferably, a cleaning rod is slidably connected inside the feed pipe, one end of the cleaning rod is fixedly connected to the upper surface of the turntable, and the size of one end of the cleaning rod matches the feed inlet size of the feed pipe.

[0016] Preferably, one end of the sealing tube is fixedly connected to a discharge check valve, one end of the discharge check valve is fixed to and communicates with the interior of the rotating rod, and one end of the rotating rod is fixedly connected to a valve.

[0017] Preferably, the lower die has a positioning hole inside, and the size of the positioning hole matches the size of the punch.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. The stainless steel punching equipment of the present invention has a grinding plate on the side wall of the punch. When the moving table drives the punch to descend and punch the stainless steel part on the surface of the lower die, after the punching is completed, it drives the grinding plate on the side wall to move. The grinding plate contacts the inner wall of the hole and can perform a rough grinding operation on the inner wall of the hole as the punch descends. Subsequently, while the punch continues to descend, it drives the grinding plate to move up and down reciprocally, and the grinding plate performs a secondary fine grinding operation on the inner wall of the hole. This device can perform multiple grinding processes on the hole wall by driving the punch and the grinding plate to move up and down reciprocally. Through multiple grinding operations, the manual grinding process can be reduced, the labor cost can be reduced, and the punching and grinding are completed in one step, which reduces the transfer and clamping time of grinding and shortens the production cycle.

[0020] 2. The stainless steel punching equipment of the present invention is equipped with a turntable. When the punch reciprocates up and down, the punch drives the turntable to move synchronously. The turntable drives the piston rod to move synchronously inside the sealing tube. When the piston rod moves upward, a negative pressure airflow is generated inside the sealing tube. The negative pressure airflow cleans the dust generated by grinding the inner wall of the hole through the feed pipe and the feed one-way valve. When the piston rod moves downward inside the sealing tube, it can discharge the dust generated by grinding into the inside of the turntable for collection. This device can remove metal debris generated by grinding, prevent debris from embedding in the hole wall or scratching the mating parts, improve the punching quality of the hole wall, and use the original reciprocating motion of the punch to drive the turntable and piston rod, eliminating the need for an additional motor or air pump. It also avoids the problem of having to stop the machine to manually clean the dust inside the hole after grinding, which increases the processing time per piece and reduces production efficiency.

[0021] 3. The stainless steel punching equipment of the present invention is equipped with a cleaning rod. When the turntable moves upward, the turntable drives the cleaning rod to move upward, opening the feed inlet of the feed pipe and allowing dust to enter the sealed pipe. When the turntable moves downward, the turntable drives the cleaning rod to reset, and the cleaning rod cleans the large debris blocking the feed inlet of the feed pipe. This device can avoid the problem of large debris accumulating at the feed inlet of the feed pipe, causing the negative pressure system to fail, dust to be unable to be sucked in, and requiring the machine to be stopped for manual cleaning of the feed inlet, thereby increasing labor costs and reducing production efficiency. Attached Figure Description

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a side view of the structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the punch of the present invention;

[0026] Figure 4 This is a schematic diagram of the punch and limiting plate of the present invention;

[0027] Figure 5 This is a top view of the punch of the present invention;

[0028] Figure 6 This is a cross-sectional view of the punch of the present invention;

[0029] Figure 7 This is the present invention. Figure 6 A magnified view of part A in the image;

[0030] Figure 8 This is a cross-sectional view of the punch and turntable of the present invention;

[0031] Figure 9 This is a schematic diagram of the rotating rod of the present invention;

[0032] Figure 10 This is a schematic diagram of the feed check valve and feed pipe of the present invention;

[0033] Figure 11 This is a bottom view of the punch structure of the present invention;

[0034] In the diagram: 1. Body; 11. Support platform; 111. Lower mold; 112. Positioning hole; 12. Moving platform; 2. Connecting plate; 21. Connecting rod; 211. First spring; 212. Pressure plate; 213. Pressure block; 22. Rotating rod; 221. Gear; 222. Protruding plate; 223. Sealing pipe; 224. Discharge check valve; 225. Feed check valve; 226. Feed pipe; 23. Punch; 231. Grinding plate; 232. Elastic telescopic rod; 233. Roller; 24. Turntable; 241. Piston rod; 242. Cleaning rod; 25. Rack; 251. Second spring; 252. Limiting wheel; 3. Limiting plate; 31. Limiting groove; 311. Vertical section; 312. Serpentine section. Detailed Implementation

[0035] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0036] Example 1: As Figures 1 to 11As shown in the embodiment of the present invention, a stainless steel punching device includes a body 1. A support platform 11 is fixedly connected to the lower surface of the body 1. A lower die 111 is fixedly connected to the upper surface of the support platform 11. A movable platform 12 is slidably connected to the inner upper surface of the body 1. A connecting plate 2 is fixedly connected to the lower surface of the movable platform 12. An elastic telescopic rod 232 is fixedly connected to the lower surface of the connecting plate 2. A punch 23 is fixedly connected to the telescopic end of the elastic telescopic rod 232. A grinding plate 231 is fixedly connected to the side surface of the punch 23. A rotating rod 22 is rotatably connected inside the connecting plate 2. A protruding plate 222 is fixedly connected to the rotating rod 22. A roller 233 is rotatably connected to the inner wall of the punch 23. A positioning hole 112 is provided inside the lower die 111. The size of the positioning hole 112 matches the size of the punch 23.

[0037] The main body 1 is equipped with a hydraulic cylinder, which is existing technology. The hydraulic cylinder can drive the moving platform 12 to descend. Under normal conditions, the spring telescopic rod is in a compressed state, and the bottom of the protrusion 222 is in contact with the surface of the roller 233.

[0038] Specifically, in the existing stainless steel punching device, the stainless steel part is placed and fixed at the lower die 111, and then the punch 23 is driven to descend and contact the stainless steel part to punch it. When the punch 23 cuts the material, the shearing force causes the edge to tear, forming sharp burrs or flanges, which makes it easy for burrs to remain on the hole wall. Therefore, after punching, the hole wall needs to be ground by a grinding equipment. The above operation increases the transfer and clamping time of grinding and the production cycle, thus leading to a decrease in the production efficiency of stainless steel parts.

[0039] To solve the above technical problems, this device uses the following method: When it is necessary to grind stainless steel parts, the stainless steel parts are placed on the lower die 111 on the support table 11 by an additional automatic feeding device. Then, the clamping plate on the lower die 111 is driven to fix the stainless steel. After fixing, the hydraulic cylinder inside the main body 1 drives the moving table 12 to descend. The moving table 12 drives the punch 23 to descend. The punch 23 contacts the surface of the stainless steel parts and corresponds to the positioning hole 112 inside the lower die 111, thus completing the punching operation of the stainless steel parts.

[0040] When the punch 23 descends, it drives the grinding plate 231 on the side wall to descend synchronously. When the punch 23 punches a hole in the stainless steel part, the grinding plate 231 contacts the inside of the hole, thus achieving a rough grinding operation on the inner wall of the hole. After the punch 23 finishes punching, it continues to drive the grinding plate 231 to descend. At this time, the drive rod 22 rotates, and the drive rod 22 drives the convex plate 222 to rotate, so that the roller 233 moves from the convex surface of the convex plate 222 to the flat surface. At this time, the elastic telescopic rod 232 drives the punch 23 to move upward, and the punch 23 drives the grinding plate 231 to move upward. Then, the convex surface of the convex plate 222 contacts the roller 233, so that the punch 23 moves downward and squeezes the elastic telescopic rod 232. Repeating the above operation can drive the punch 23 and the grinding plate 231 to move up and down in the hole wall. The up and down movement of the grinding plate 231 can perform a fine grinding operation on the hole wall.

[0041] This device can perform multiple grinding processes on the hole wall by driving the punch 23 and the grinding plate 231 to reciprocate up and down. Through multiple grinding operations, this device can reduce the manual grinding process and reduce labor costs. Moreover, by completing punching and grinding in one step, it reduces the transfer and clamping time of grinding and shortens the production cycle.

[0042] Furthermore, this device can replace the punch 23 according to the shape of the hole, so that after punching is completed, the punch 23 and the grinding plate 231 can reciprocate to grind the hole wall.

[0043] like Figure 3 As shown, a connecting rod 21 is fixedly connected inside the connecting plate 2, a pressure plate 212 is fixedly connected to one end of the connecting rod 21, a pressure block 213 is fixedly connected to the lower surface of the pressure plate 212, and a first spring 211 is fixedly connected between the pressure plate 212 and the connecting plate 2.

[0044] Specifically, when the moving platform 12 descends, the moving platform 12 drives the connecting plate 2 to descend synchronously. The connecting plate 2 drives the connecting rod 21 and the punch 23 to descend synchronously. The connecting rod 21 drives the pressure plate 212 to descend synchronously. The pressure plate 212 drives the pressure block 213 to descend synchronously. When the punch 23 and the pressure block 213 descend and come into contact with the stainless steel part, the pressure block 213 presses down on both sides of the stainless steel part. At the same time, the position of the pressure block 213 is fixed. The connecting plate 2 descends and squeezes the first spring 211 to fix the stainless steel part. This can reduce the problem of deformation caused by the internal stress generated by punching, which causes the stainless steel part to warp on both sides.

[0045] like Figures 3 to 5As shown, one end of the rotating rod 22 is fixedly connected to a gear 221, and a rack 25 is slidably connected to the upper surface of the connecting plate 2. The rack 25 and the gear 221 mesh with each other. A second spring 251 is fixedly connected between the rack 25 and the lower surface of the moving platform 12. A limit plate 3 is fixedly connected to the upper surface of the support platform 11. A limit groove 31 is provided inside the limit plate 3. A limit wheel 252 is slidably connected inside the limit groove 31. The limit wheel 252 is rotatably connected to one end of the rack 25. The limit groove 31 includes a vertical section 311. A serpentine section 312 is provided on one side of the vertical section 311. One end of the vertical section 311 and the serpentine section 312 are connected.

[0046] Specifically, when the connecting plate 2 descends, the connecting plate 2 drives the rack 25 to descend synchronously. The limiting wheel 252 at one end of the rack 25 slides in the limiting groove 31 inside the limiting plate 3. In the initial state, the limiting wheel 252 slides downward in the vertical section 311. When the punch 23 completes punching the stainless steel part, the limiting wheel 252 slides to the interface between the vertical section 311 and the serpentine section 312. Then the connecting plate 2 drives the punch 23 to continue to descend, so that the limiting wheel 252 slides in the serpentine section 312.

[0047] When the limiting wheel 252 slides in the outer inclined section of the serpentine section 312, the second spring 251 drives the rack 25 to slide on the connecting plate 2. The rack 25 slides away from the limiting wheel 252, so that the rack 25 and the gear 221 mesh. The gear 221 can drive the rotating rod 22 to rotate, and the rotating rod 22 drives the convex plate 222 to rotate, so that the roller 233 moves to the horizontal surface of the convex plate 222.

[0048] When the limiting wheel 252 slides in the inner inclined section of the serpentine section 312, the rack 25 stretches the second spring 251 and slides to one side of the limiting wheel 252. The rack 25 and the gear 221 mesh, causing the gear 221 to drive the rotating rod 22 to reset and rotate, so that the roller 233 moves to the protruding surface of the convex plate 222.

[0049] Example 2: Figures 6 to 11As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a turntable 24 is rotatably connected to the inner lower surface of the punch 23, a sealing tube 223 is slidably connected inside the turntable 24, a piston rod 241 is slidably connected inside the sealing tube 223, one end of the piston rod 241 is fixedly connected to the upper surface of the turntable 24, the size of the piston rod 241 matches the inner wall size of the sealing tube 223, a discharge check valve 224 is fixedly connected to one end of the sealing tube 223, one end of the discharge check valve 224 is fixedly connected to and communicates with the interior of the rotating rod 22, a valve is fixedly connected to one end of the rotating rod 22, a feed check valve 225 is fixedly connected to one end of the sealing tube 223, and a feed pipe 226 is fixedly connected to one end of the feed check valve 225.

[0050] Specifically, when the grinding plate 231 grinds the burrs on the hole wall, dust and metal shavings generated during grinding will adhere to the inner wall of the hole. If the metal shavings generated during grinding are not removed in time, the dust and shavings will embed into the hole wall material, forming surface defects and thus reducing the punching quality.

[0051] To solve the above-mentioned technical problems, this device is used as follows: When the punch 23 performs grinding operation on the stainless steel part, the punch 23 drives the turntable 24 and the sealing tube 223 to move synchronously and cooperate, so as to punch the stainless steel part. When the punch 23 is resetting and drives the grinding plate 231 to move upward, the punch 23 drives the turntable 24 to move synchronously. The turntable 24 drives the piston rod 241 to move upward inside the sealing tube 223, so that a negative pressure is generated inside the sealing tube 223. The negative pressure airflow absorbs the dust attached to the hole wall. The dust enters the feed one-way valve 225 through the feed pipe 226, and then enters the sealing tube 223 through the feed one-way valve 225.

[0052] When the punch 23 drives the turntable 24 to descend, the turntable 24 drives the piston to slide downward inside the sealing tube 223, causing the discharge check valve 224 inside the sealing tube 223 to open, so that the absorbed dust can be discharged into the inside of the rotating rod 22 for collection. After the device has finished working, the valve at one end of the rotating rod 22 can be opened, and the dust collected inside the rotating rod 22 can be cleaned by using an external negative pressure device.

[0053] This device can remove metal shavings generated during grinding, preventing shavings from embedding in the hole wall or scratching the mating parts, thus improving the punching quality of the hole wall. Furthermore, it utilizes the original reciprocating motion of the punch 23 to drive the turntable 24 and piston rod 241, eliminating the need for an additional motor or air pump. It also avoids the problem of having to stop the machine after grinding to manually clean the dust and shavings inside the hole, which increases the processing time per piece and reduces production efficiency.

[0054] like Figure 7 and Figure 10As shown, one end of the feed pipe 226 is tapered, and a cleaning rod 242 is slidably connected inside the feed pipe 226. One end of the cleaning rod 242 is fixedly connected to the upper surface of the turntable 24, and the size of the cleaning rod 242 matches the feed inlet size of the feed pipe 226.

[0055] Specifically, when the above-mentioned device absorbs debris and dust through the feed pipe 226, due to the inconsistent size of the debris, some debris will block the feed inlet of the feed pipe 226, causing the negative pressure system to fail, dust cannot be sucked in, and making it difficult to clean the dust and debris on the hole wall.

[0056] To solve the above problems, this device uses the following configuration: the turntable 24 drives the piston rod 241 to move upward, while simultaneously driving the cleaning rod 242 to slide on the inner wall of the feed pipe 226. One end of the feed pipe 226 is tapered, so when the cleaning rod 242 moves upward, the opening of the feed pipe 226 opens, allowing negative pressure airflow to pass through, which can suck in dust and debris. When the turntable 24 drives the piston rod 241 and the cleaning rod 242 to reset, the cleaning rod 242 moves downward to push the impurities blocking the feed inlet of the feed pipe 226, causing the impurities to be discharged from the feed inlet.

[0057] This device can prevent large debris from accumulating at the feed inlet of feed pipe 226, which would cause the negative pressure system to fail, preventing dust from being sucked in and requiring the machine to be stopped for manual cleaning of the feed inlet, thereby increasing labor costs and reducing production efficiency.

[0058] Working principle: When it is necessary to grind stainless steel parts, the stainless steel parts are placed on the lower mold 111 on the support table 11 by an additional automatic feeding device. Then, the clamping plate on the lower mold 111 is driven to fix the stainless steel. After fixing, the hydraulic cylinder inside the body 1 drives the moving table 12 to descend. The moving table 12 drives the connecting plate 2 to descend. The connecting plate 2 drives the elastic telescopic rod 232 to descend. The elastic telescopic rod 232 drives the punch 23 to descend. The punch 23 contacts the surface of the stainless steel part and corresponds to the positioning hole 112 inside the lower mold 111.

[0059] When the moving table 12 descends, the moving table 12 drives the connecting plate 2 to descend synchronously. The connecting plate 2 drives the connecting rod 21 and the punch 23 to descend synchronously. The connecting rod 21 drives the pressure plate 212 to descend synchronously. The pressure plate 212 drives the pressure block 213 to descend synchronously. When the punch 23 and the pressure block 213 descend and come into contact with the stainless steel part, the pressure block 213 presses down on both sides of the stainless steel part. At the same time, the position of the pressure block 213 is fixed. The connecting plate 2 descends and squeezes the first spring 211 and drives the punch 23 to descend to perform a punching operation on the stainless steel part.

[0060] When the connecting plate 2 descends, the connecting plate 2 drives the rack 25 to descend synchronously. The limiting wheel 252 at one end of the rack 25 slides in the limiting groove 31 inside the limiting plate 3. In the initial state, the limiting wheel 252 slides downward in the vertical section 311. When the punch 23 completes punching the stainless steel part, the limiting wheel 252 slides to the interface between the vertical section 311 and the serpentine section 312. Then the connecting plate 2 drives the punch 23 to continue to descend, so that the limiting wheel 252 slides in the serpentine section 312.

[0061] When the limiting wheel 252 slides in the outer inclined section of the serpentine section 312, the second spring 251 drives the rack 25 to slide on the connecting plate 2. The rack 25 slides away from the limiting wheel 252, so that the rack 25 and the gear 221 mesh. The gear 221 can drive the rotating rod 22 to rotate. The rotating rod 22 drives the convex plate 222 to rotate, so that the roller 233 moves to the horizontal surface of the convex plate 222. At this time, the elastic telescopic rod 232 drives the punch 23 to move upward, and the punch 23 drives the grinding plate 231 to move upward.

[0062] When the limiting wheel 252 slides in the inclined section inside the serpentine section 312, the rack 25 stretches the second spring 251 and slides to one side of the limiting wheel 252. The rack 25 and the gear 221 mesh, causing the gear 221 to drive the rotating rod 22 to reset and rotate, causing the roller 233 to move to the protruding surface of the convex plate 222, causing the punch 23 to move downward and squeeze the elastic telescopic rod 232. By repeating the above operation, the punch 23 and the grinding plate 231 can be driven to move up and down in the hole wall. The up and down movement of the grinding plate 231 can perform fine grinding on the hole wall.

[0063] When the punch 23 grinds the stainless steel parts, the punch 23 drives the turntable 24 and the sealing tube 223 to move synchronously and cooperate, thus punching the stainless steel parts. When the punch 23 resets and drives the grinding plate 231 to move upward, the punch 23 drives the turntable 24 to move synchronously. The turntable 24 drives the piston rod 241 to move upward inside the sealing tube 223. At the same time, the turntable 24 drives the cleaning rod 242 to slide on the inner wall of the feed pipe 226. One end of the feed pipe 226 is tapered. Therefore, when the cleaning rod 242 moves upward, the opening of the feed pipe 226 opens, and the negative pressure airflow passes through, which generates a negative pressure inside the sealing tube 223. The negative pressure airflow absorbs the dust attached to the hole wall. The dust enters the feed one-way valve 225 through the feed pipe 226 and then enters the sealing tube 223 through the feed one-way valve 225.

[0064] When the punch 23 drives the turntable 24 to descend, the turntable 24 drives the piston to slide downward inside the sealing tube 223, which opens the discharge check valve 224 inside the sealing tube 223, allowing the absorbed dust to be discharged into the inside of the rotating rod 22 for collection. At the same time, the cleaning rod 242 moves downward to push the impurities blocking the feed port of the feed pipe 226, allowing the impurities to be discharged from the feed port.

[0065] After the device has finished working, the valve at one end of the rotating rod 22 can be opened, and the dust collected inside the rotating rod 22 can be cleaned by using an external negative pressure device.

[0066] The foregoing has shown and described 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 to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A punching device for stainless steel parts, characterized in that: The device includes a body (1), a support platform (11) is fixedly connected to the lower surface of the body (1), a lower mold (111) is fixedly connected to the upper surface of the support platform (11), a moving platform (12) is slidably connected to the inner upper surface of the body (1), a connecting plate (2) is fixedly connected to the lower surface of the moving platform (12), an elastic telescopic rod (232) is fixedly connected to the lower surface of the connecting plate (2), a punch (23) is fixedly connected to the telescopic end of the elastic telescopic rod (232), a grinding plate (231) is fixedly connected to the side surface of the punch (23), a rotating rod (22) is rotatably connected to the inside of the connecting plate (2), a protruding plate (222) is fixedly connected to the rotating rod (22), and a roller (233) is rotatably connected to the inner wall of the punch (23). The inner lower surface of the punch (23) is rotatably connected to a turntable (24), and a sealing tube (223) is slidably connected inside the turntable (24). A piston rod (241) is slidably connected inside the sealing tube (223). One end of the piston rod (241) is fixedly connected to the upper surface of the turntable (24), and the size of the piston rod (241) matches the inner wall size of the sealing tube (223). One end of the sealing tube (223) is fixedly connected to a feed check valve (225), and one end of the feed check valve (225) is fixedly connected to a feed tube (226). One end of the feed tube (226) is tapered. A cleaning rod (242) is slidably connected inside the feed pipe (226). One end of the cleaning rod (242) is fixedly connected to the upper surface of the turntable (24). One end of the cleaning rod (242) matches the size of the feed inlet of the feed pipe (226). One end of the sealing tube (223) is fixedly connected to a discharge check valve (224). One end of the discharge check valve (224) is fixed and connected to the inside of the rotating rod (22). One end of the rotating rod (22) is fixedly connected to a valve.

2. The stainless steel punching equipment according to claim 1, characterized in that: The connecting plate (2) is internally connected to a connecting rod (21), one end of the connecting rod (21) is fixedly connected to a pressure plate (212), the lower surface of the pressure plate (212) is fixedly connected to a pressure block (213), and a first spring (211) is fixedly connected between the pressure plate (212) and the connecting plate (2).

3. The stainless steel punching equipment according to claim 2, characterized in that: One end of the rotating rod (22) is fixedly connected to a gear (221), and a rack (25) is slidably connected to the upper surface of the connecting plate (2). The rack (25) and the gear (221) mesh with each other, and a second spring (251) is fixedly connected between the rack (25) and the lower surface of the moving platform (12).

4. A stainless steel punching device according to claim 3, characterized in that: A limiting plate (3) is fixedly connected to the upper surface of the support platform (11). A limiting groove (31) is provided inside the limiting plate (3). A limiting wheel (252) is slidably connected inside the limiting groove (31). The limiting wheel (252) is rotatably connected to one end of the rack (25).

5. A stainless steel punching device according to claim 4, characterized in that: The limiting groove (31) includes a vertical section (311), and a serpentine section (312) is provided on one side of the vertical section (311). One end of the vertical section (311) and the serpentine section (312) are connected.

6. The stainless steel punching equipment according to claim 1, characterized in that: The lower die (111) has a positioning hole (112) inside, and the size of the positioning hole (112) matches the size of the punch (23).

Images