A pneumatic punching device and method for processing LED street lamp frame

Abstract

The present invention relates to the field of pneumatic processing technology, specifically to a pneumatic stamping device and method for processing an LED street lamp frame, comprising a base and a top frame, wherein a concave mold adapted to an LED street lamp frame workpiece is provided inside the base, a convex mold adapted to the LED street lamp frame is provided below the top frame, a plurality of support rods are commonly connected between the base and the top frame, a liquid storage shell for storing lubricant is provided on the top of the convex mold, liquid pipes for spraying lubricant are provided on both sides of the convex mold, an infusion assembly for driving the lubricant delivery in the liquid storage shell is provided inside the top frame, a top strip is provided inside the concave mold, a plurality of drainage holes for lubricant to pass through are provided on the inner wall of the concave mold, and a drainage assembly for pushing the lubricant to be sprayed out through the drainage holes is provided inside the base. By introducing lubricant during the stamping process, the friction between the LED street lamp frame workpiece and the mold can be significantly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of pneumatic processing, and in particular to a pneumatic punching device and method for processing a frame of an LED street lamp. Background Art

[0002] With the continuous advancement of LED technology and the continuous expansion of the LED lighting market, the demand for LED street lights, as an important part of urban lighting, is also increasing. As one of the key components of LED street lights, the quality and precision of LED street light frames have an important impact on the overall performance and service life of LED street lights. Therefore, how to efficiently and accurately process LED street light frames has become an important technical issue. Traditional LED street light frame processing methods mainly use mechanical processing or welding processes, but these processes have problems such as low production efficiency, high cost, and large product errors. In order to solve these problems, pneumatic processing technology has been introduced into the processing of LED street light frames. Pneumatic processing technology is a technology that uses air pressure to drive mechanical equipment for processing, which has the advantages of high production efficiency, low cost, and easy automation. In the processing of LED street light frames, pneumatic stamping devices can achieve fast and accurate stamping of frames, thereby improving production efficiency, reducing production costs, and effectively avoiding product errors.

[0003] For example, the patent application with the prior art publication number CN113770217A discloses a pneumatic processing device for an LED street lamp frame, which belongs to the field of pneumatic processing technology and includes a top block, a motor is fixedly installed on the inner side of the top block, a pneumatic rod is cooperatively connected to the bottom end of the motor, the pneumatic rod penetrates the surface of the fixed box and extends into the fixed box to be connected with the screw, a control switch is fixedly installed on the right end of the outer side of the fixed box, a screw sleeve is rotatably sleeved on the outer side of the screw, and a bearing sleeve is fixedly sleeved on the outer side of the screw sleeve, and the LED street lamp frame is placed between two groups of brackets. When the frame is placed, a pressure is applied to the limit block due to its own volume, so that the spring column is squeezed and deformed, and the spring column converts the pressure into power to react to the limit block through its own elastic potential energy, and the two groups of limit blocks are mirror-imaged with the pneumatic block as the center, so that the LED street lamp frame can be clamped and fixed to ensure the stability of the frame during pneumatic stamping.

[0004] In the existing pneumatic stamping technology for processing LED street lamp frames, although the two sets of limit blocks are cleverly set to achieve a firm clamping of the workpiece, thereby ensuring the stability of the stamping process, in actual operation, the direct contact between the pneumatic block and the frame has become a significant defect. Due to the lack of an effective lubrication mechanism, the pneumatic block generates huge friction with the frame during high-speed stamping. This dry impact not only causes rapid wear of the pneumatic block and the workpiece surface, seriously affecting the precision and surface quality of the stamped parts, but also greatly shortens the service life of the mold, increasing production costs and maintenance difficulties. What is more serious is that this dry impact may also trigger a series of chain reactions, such as slight deformation of the mold, increased vibration during the stamping process, etc., and these problems will further affect the quality and production efficiency of the product. To this end, the present application proposes a pneumatic stamping device and method for processing LED street lamp frames. Summary of the invention

[0005] The object of the present invention is to provide a pneumatic stamping device and method for processing an LED street lamp frame, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pneumatic stamping device for processing an LED street lamp frame, comprising a base and a top frame, a concave mold adapted to the LED street lamp frame workpiece is provided inside the base, a convex mold adapted to the LED street lamp frame is provided below the top frame, a plurality of support rods are commonly connected between the base and the top frame, a liquid storage shell for storing lubricant is provided on the top of the convex mold, liquid pipes for spraying lubricant are provided on both sides of the convex mold, an infusion component for driving the lubricant delivery in the liquid storage shell is provided inside the top frame, a top strip is provided inside the concave mold, a plurality of drainage holes for the lubricant to pass through are provided on the inner wall of the concave mold, and a drainage component for pushing the lubricant to be sprayed out through the drainage holes is provided inside the base.

[0007] Preferably, the infusion assembly includes a guide rod arranged inside the top frame, the bottom of the guide rod extends to the inside of the liquid storage shell for rotational connection, and the outer surface of the guide rod located in the liquid storage shell is fixedly connected to a rotating pressing plate, the top of the punch is fixedly connected to a liquid transfer tube, the liquid transfer tube and the liquid storage shell are connected by a through pipe, the two ends of the liquid transfer tube are respectively fixedly connected to and communicated with transmission plates, the transmission plate is fixedly connected to the liquid pipe, and a plurality of liquid spray outlets are opened at the bottom of the liquid pipe.

[0008] Preferably, a plurality of balls are rotatably connected inside the top frame, a second guide groove for rolling of the balls is spirally opened on the outer surface of the guide rod, a stamping cylinder is fixedly connected to the top of the top frame, and the output end of the stamping cylinder passes through the top frame and is fixedly connected to the punch.

[0009] Preferably, a plurality of air grooves are provided inside the base, one end of each of the air grooves is slidably connected with an active piston rod adapted thereto, each of the active piston rods is fixedly connected to a top bar respectively, the other end of each of the air grooves is slidably connected with a driven piston rod adapted thereto, and the outer surfaces of each of the driven piston rods are sleeved with a reset spring for self-reset.

[0010] Preferably, a plurality of slides are fixedly connected to the top of the base, a plurality of slides are slidably connected inside the slides, levers are rotatably connected on both sides of the slides, and a plurality of slides are fixedly connected inside with compression springs fixedly connected to the slides, the transmission sheet abuts against the slide, a plurality of supports rotatably connected to the middle end of the lever are fixedly connected to the top of the base, a slide groove is provided at one end of the lever, and the top of the driven piston rod is slidably connected to the slide groove.

[0011] Preferably, the drainage assembly includes a liquid tank opened inside the base, and the liquid tank is connected to a plurality of drainage holes, the top of the liquid tank is connected to a spring tube connected to a liquid pipe, the interior of the liquid tank is rotatably connected to a rotating rod, and the outer surface of the rotating rod is fixedly connected to a scraper blade.

[0012] Preferably, one side of each of the plurality of air grooves is connected to a side groove, a fixing ring is fixedly connected to the inside of the side groove, an auxiliary piston rod whose piston end is adapted to the side groove is slidably connected to the inside of the fixing ring, a cavity is provided inside the rotating rod, a reset groove is provided in the cavity, a first guide groove connected to the reset groove is provided in the cavity, and a transmission bar slidably connected to the first guide groove is fixedly connected to the outer surface of the auxiliary piston rod.

[0013] Preferably, an exhaust groove communicating with the outside is provided inside the air groove.

[0014] Preferably, a tension spring is sleeved on the outer surface of the auxiliary piston rod, one end of the tension spring is fixedly connected to a fixing ring, and the other end of the tension spring is fixedly connected to the piston end of the auxiliary piston rod.

[0015] The present invention also provides a pneumatic stamping method for processing an LED street lamp frame, comprising the following steps:

[0016] S1. When in use, first place the workpiece inside the die, then push the punch down to contact the workpiece in the die, so that the top surface of the workpiece contacts the punch and the bottom surface contacts the die to achieve stamping;

[0017] S2. When the punch moves downward, it drives the infusion component to move and transport the lubricant into the liquid pipe, so that a certain amount of lubricant is discharged to the surface of the workpiece;

[0018] S3. When the punch has completed punching the workpiece, the punch will be driven to reset, which will drive the top bar to move upward so that the workpiece is pushed. At the same time, the drainage component will run to discharge part of the lubricant through the drainage hole. At this time, the lubricant fills the inside of the die.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] By introducing lubricants during the stamping process, the friction between the LED street light frame workpiece and the mold (die and punch) can be significantly reduced. This helps to reduce mold wear, thereby extending its service life and reducing production costs. The design of the infusion component ensures timely and uniform spraying of the lubricant during the stamping process. When the punch moves down, the lubricant is continuously and stably transported to the liquid transfer tube through the rotation of the guide rod and the rotary pressing plate, and then evenly sprayed onto the workpiece surface through the transmission plate and the liquid pipe.

[0021] The design of the ejector bar enables the workpiece to be automatically ejected from the die after stamping is completed, greatly simplifying the workpiece removal process and improving production efficiency. The automatic extension and retraction of the ejector bar is achieved through the mutual cooperation of the active piston rod and the driven piston rod, as well as the resetting action of the resetting spring. No additional power source is required, reducing energy consumption. During the stamping process, the ejector bar is close to the inner wall of the die, ensuring that the bottom surface of the workpiece fits perfectly with the die, thereby improving the stamping quality. The movement of the active piston rod also ensures that the ejector bar is reset in time after stamping is completed. The design of the drain hole and the drain assembly enables the lubricant to be accurately supplied to the inside of the die during the stamping process, reducing the waste of lubricant and improving the lubrication effect. The unidirectional sliding of the transmission bar in the resetting groove and the first guide groove ensures the timely rotation of the rotating rod and the scraper blade, thereby achieving accurate scraping and discharge of the lubricant. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the base in the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the top frame in the present invention;

[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of the base in the present invention;

[0026] Figure 5 For the present invention Figure 4 A schematic diagram of the structure enlargement in the middle;

[0027] Figure 6 It is a structural schematic diagram of the air tank in the present invention;

[0028] Figure 7This is a schematic diagram of the structure of the present invention without the base;

[0029] Figure 8 It is a schematic diagram of the structure of the liquid tank in the present invention;

[0030] Fig. 9 It is a schematic diagram of the cross-sectional structure of the transfer rod of the present invention;

[0031] Fig.10 It is a structural schematic diagram of the concave mold in the present invention;

[0032] Fig.11 It is a schematic diagram of the cross-sectional structure of the top frame in the present invention;

[0033] Fig.12 It is a schematic diagram of the cross-sectional structure of the liquid storage shell in the present invention.

[0034] In the figure: 100, base; 101, top frame; 102, die; 103, support rod; 104, stamping cylinder; 105, punch; 200, top strip; 201, air groove; 202, active piston rod; 203, return spring; 204, driven piston rod; 205, exhaust groove; 206, lever; 207, support; 208, slide; 209, slide seat; 210, compression spring; 211, slide groove; 300, drainage hole; 301, side groove; 302, rotating rod; 303, scraper blade; 304, first guide groove; 305, reset groove; 306, fixing ring; 307, auxiliary piston rod; 308, transmission bar; 309, tension spring; 400, liquid storage shell; 401, guide rod; 402, second guide groove; 403, ball; 404, rotating pressing plate; 405, liquid transfer tube; 406, through tube; 407, transmission plate; 408, liquid tube; 409, spring tube; 410, liquid spray port; 411, liquid tank. DETAILED DESCRIPTION

[0035] 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.

[0036] Example 1: Please refer to Figure 1 , Figure 2 as well as Figure 3The present invention provides a technical solution: a pneumatic stamping device for processing an LED street lamp frame, comprising a base 100 and a top frame 101, wherein a concave die 102 adapted to the LED street lamp frame workpiece is provided inside the base 100, a convex die 105 adapted to the LED street lamp frame is provided below the top frame 101, a plurality of support rods 103 are commonly connected between the base 100 and the top frame 101, a liquid storage shell 400 for storing lubricant is provided on the top of the convex die 105, and liquid pipes 400 for spraying lubricant are provided on both sides of the convex die 105 08. An infusion assembly for driving the lubricant delivery in the liquid storage shell 400 is arranged inside the top frame 101. The cooperation between the concave die 102 and the convex die 105 can be used to stamp the workpiece to make it plastic, and the intervention of the lubricant can reduce the friction between the workpiece and the mold, thereby increasing its service life. By arranging the infusion assembly, the lubricant can be added to the workpiece during stamping, thereby avoiding the influence of the lubricant delivery too early or too late to affect the stamping effect, wherein the lubricant will dry up when the lubricant is injected too early, and the lubricant will not be evenly distributed when injected too late.

[0037] For further information, see Fig.10 , Fig.11 as well as Fig.12 The infusion assembly includes a guide rod 401 disposed inside the top frame 101, the bottom of the guide rod 401 extends to the inside of the liquid storage shell 400 for rotational connection, and the outer surface of the guide rod 401 located inside the liquid storage shell 400 is fixedly connected with a rotating pressing plate 404, the top of the male mold 105 is fixedly connected with a liquid transfer tube 405, the liquid transfer tube 405 is connected to the liquid storage shell 400 through a through tube 406, and the two ends of the liquid transfer tube 405 are respectively fixedly connected with transmission plates 407 that are connected, and the transmission plate 407 is fixedly connected to the liquid tube 408, and the liquid tube 408 A plurality of liquid spraying ports 410 are provided at the bottom of the housing. The driving guide rod 401 is rotated by operating the punch 105 to move downward, thereby driving the rotating pressing plate 404 to rotate. At this time, the rotating pressing plate 404 continuously pushes the lubricant in the liquid storage shell 400 to be transported to the liquid transfer tube 405. The rotating pressing plate 404 is spirally shaped and can exert pressure on the lubricant during rotation to transport it to the inside of the liquid transfer tube 405. The driving plate 407 moves together with the punch 105, so that the lubricant is evenly sprayed onto the top surface of the workpiece when discharged through the liquid pipe 408.

[0038] Among them, a plurality of balls 403 are rotatably connected inside the top frame 101, a second guide groove 402 for the balls 403 to roll on is spirally opened on the outer surface of the guide rod 401, a stamping cylinder 104 is fixedly connected to the top of the top frame 101, and the output end of the stamping cylinder 104 passes through the top frame 101 and is fixedly connected to the punch 105. The guide rod 401 can guide the punch 105 and cooperate with the balls 403 to generate a rotational force to drive the rotating pressing plate 404 to rotate and transport the lubricant.

[0039] Specifically, when in use, the workpiece is first placed inside the die 102, and then the stamping cylinder 104 can be turned on to push the punch 105 downward to contact the workpiece in the die 102, so that the workpiece is subjected to force and its top surface contacts the punch 105, while its bottom surface contacts the die 102 to achieve stamping. At the same time, when the punch 105 moves downward, it will first drive the guide rod 401 to move with it, so that the ball 403 is guided in the second guide groove 402 to drive the guide rod 401 to rotate, and when the guide rod 401 rotates, it will drive the rotating pressing plate 404 to rotate with it and continuously squeeze the lubricant in the liquid storage shell 400 through the through pipe 406 to the liquid transfer tube 405, and when the lubricant in the liquid transfer tube 405 increases, it will be transported to the liquid pipe 408 through the transmission plate 407, so that a certain amount of lubricant is discharged to the top surface of the workpiece through the liquid spray port 410.

[0040] In summary, by introducing lubricant during the stamping process, the friction between the LED street lamp frame workpiece and the mold concave die 102 and the punch 105 can be significantly reduced. This helps to reduce the wear of the mold, thereby extending its service life and reducing production costs. The design of the infusion component ensures that the lubricant is sprayed in a timely and uniform manner during the stamping process. When the punch 105 moves downward, the lubricant is continuously and stably transported to the liquid transfer tube 405 through the rotation of the guide rod 401 and the rotating pressing plate 404, and then evenly sprayed onto the top surface of the workpiece through the transmission plate 407 and the liquid pipe 408.

[0041] Example 2: Please refer to Figure 4 , Figure 5 as well as Figure 6 The present invention also provides a technical solution to increase the coverage area of ​​the lubricant, thereby ensuring that the lubricant is attached to both sides of the workpiece. The technical solution different from the first embodiment is: a pneumatic stamping device for processing an LED street lamp frame, a top strip 200 is arranged inside the die 102, and the top strip 200 can push the workpiece out of the die 102 after the workpiece is stamped, so as to facilitate removal. A plurality of air grooves 201 are opened inside the base 100, and one end of each of the plurality of air grooves 201 is slidably connected with an active piston rod 202 adapted thereto, and each of the plurality of active piston rods 202 is fixedly connected to the top strip 200 respectively, and the other end of each of the plurality of air grooves 201 is slidably connected with a slave piston rod 204 adapted thereto, and the outer surfaces of the plurality of slave piston rods 204 are sleeved with a reset spring 203 for self-reset, and transmission thereof can be realized by arranging the cooperation between the slave piston rod 204 and the active piston rod 202.

[0042] Furthermore, the top of the base 100 is fixedly connected with a plurality of slides 208, the interiors of the plurality of slides 208 are all slidably connected with slide seats 209, both sides of the plurality of slide seats 209 are rotatably connected with levers 206, and the interiors of the plurality of slides 208 are all fixedly connected with compression springs 210 fixedly connected with the slide seats 209, the transmission sheet 407 abuts against the slide seats 209, the top of the base 100 is fixedly connected with a plurality of supports 207 rotatably connected with the middle ends of the levers 206, one end of the levers 206 is provided with a slide slot 211, and the driven piston rod 204 is The top is slidably connected to the slide groove 211, and an exhaust groove 205 connected to the outside is opened inside the air groove 201. By setting the mutual cooperation of the transmission plate 407 and the slide seat 209, the driven piston rod 204 can be driven to move upward when the punch 105 punches the workpiece, and then the top bar 200 is pulled to reset, ensuring that the bottom surface of the workpiece and the die 102 fit perfectly to achieve stamping. At the same time, when the punch 105 is stamped, the reset of the driven piston rod 204 will drive the active piston rod 202 to move, so that the top bar 200 pushes the workpiece out of the die 102.

[0043] Among them, see Figure 7 , Figure 8 as well as Fig. 9 The inner wall of the die 102 is provided with a plurality of drainage holes 300 for the lubricant to pass through, and the base 100 is provided with a drainage component inside for pushing the lubricant to be sprayed out through the drainage holes 300. The drainage component includes a liquid tank 411 provided inside the base 100, and the liquid tank 411 is connected with the plurality of drainage holes 300. The top of the liquid tank 411 is connected with a spring tube 409 connected with the liquid pipe 408. The interior of the liquid tank 411 is rotatably connected with a rotating rod 302, and the outer surface of the rotating rod 302 is fixedly connected with a scraper 303. The scraper 303 can scrape the lubricant to move and drive it to be discharged through the drainage holes 300.

[0044] Furthermore, one side of each of the plurality of air grooves 201 is connected to a side groove 301, a fixing ring 306 is fixedly connected to the inside of the side groove 301, an auxiliary piston rod 307 whose piston end is adapted to the side groove 301 is slidably connected to the inside of the fixing ring 306, a cavity is provided inside the rotating rod 302, a reset groove 305 is provided inside the cavity, a first guide groove 304 connected to the reset groove 305 is provided inside the cavity, and a transmission bar 308 slidably connected to the first guide groove 304 is fixedly connected to the outer surface of the auxiliary piston rod 307 A tension spring 309 is sleeved on the outer surface of the auxiliary piston rod 307, one end of the tension spring 309 is fixedly connected to the fixing ring 306, and the other end of the tension spring 309 is fixedly connected to the piston end of the auxiliary piston rod 307. The connection between the reset groove 305 and the first guide groove 304 allows the transmission bar 308 to slide to one end of the reset groove 305 and then slide into the first guide groove 304, thereby forming a one-way sliding, and a closed loop can be formed between the first guide groove 304 and the reset groove 305, thereby providing a cyclic drive for the rotating rod 302.

[0045] It is worth mentioning that when the driven piston rod 204 moves upward to absorb the gas in the air groove 201, the top strip 200 will be close to the inner wall of the die 102, and at the same time, the piston end of the auxiliary piston rod 307 can be adsorbed to move inside the side groove 301, so that its transmission strip 308 moves to one end in the reset groove 305, and at the same time, the scraper 303 will cover the multiple drainage holes 300 and block the liquid groove 411, and when the driven piston rod 204 moves downward, the reset of the auxiliary piston rod 307 will push the transmission strip 308 into the first guide groove 304 and drive the rotating rod 302 to rotate and drive the lubricant into the drainage hole 300, and at the same time, the active piston rod 202 moves to open the top strip 200 so that it covers the multiple drainage holes 300, so that the lubricant enters the inside of the die 102 to add an appropriate amount of lubricant for subsequent stamping.

[0046] Specifically, when the punch 105 moves downward, it will drive the transmission sheet 407 to move downward with it, and the pressure slide 209 will move downward to squeeze the compression spring 210. At this time, the slide 209 will drive the levers 206 on both sides to tilt and pull the driven piston rod 204 to move upward. At this time, the driven piston rod 204 moves upward to extract air from the air groove 201. At this time, the top strip 200 is close to the inside of the die 102, so that the piston end of the auxiliary piston rod 307 slides inside the side groove 301, and the transmission strip 308 slides inside the reset groove 305. When the punch 105 completes the stamping of the workpiece, it will drive the punch 105 to reset. At this time, the slide 209 will break away from the resistance of the transmission sheet 407 and press The driven piston rod 204 is driven to reset under the action of the spring 210 and the return spring 203, so that the gas in the gas groove 201 pushes the active piston rod 202 and the fixing ring 306 to move. At this time, the movement of the active piston rod 202 will drive the top bar 200 to move upward so that the workpiece is pushed. At the same time, the auxiliary piston rod 307 is subjected to force to drive the transmission bar 308 to slide in the first guide groove 304, so that the rotating rod 302 rotates and drives the scraper 303 to rotate and scrape the lubricant to be discharged through the drainage hole 300. At this time, the lubricant fills the inside of the die 102, and when the active piston rod 202 passes over the exhaust groove 205, the gas will be discharged to reset the active piston rod 202.

[0047] In summary, the design of the top bar 200 enables the workpiece to be automatically ejected from the die 102 after stamping is completed, greatly simplifying the workpiece removal process and improving production efficiency. Through the mutual cooperation of the active piston rod 202 and the driven piston rod 204, and the reset action of the reset spring 203, the automatic extension and retraction of the top bar 200 is realized, without the need for an additional power source, thereby reducing energy consumption. During the stamping process, the top bar 200 is tightly attached to the inner wall of the die 102, ensuring that the bottom surface of the workpiece fits perfectly with the die 102, thereby improving the stamping quality. The movement of the active piston rod 202 also ensures that the top bar 200 is reset in time after stamping is completed. The design of the drain hole 300 and the drain assembly enables the lubricant to be accurately supplied to the inside of the die 102 during the stamping process, reducing the waste of lubricant and improving the lubrication effect. The unidirectional sliding of the transmission bar 308 in the reset groove 305 and the first guide groove 304 ensures the timely rotation of the rotating rod 302 and the scraper 303, thereby achieving accurate scraping and discharge of the lubricant.

[0048] Example 3: Please refer to Figures 1 to 12 The present invention also provides a technical solution, which is different from the technical solution of the first embodiment: a pneumatic stamping method for processing an LED street lamp frame, comprising the following steps:

[0049] S1. When in use, the workpiece is first placed inside the die 102, and then the stamping cylinder 104 is turned on to push the punch 105 downward to contact the workpiece in the die 102, so that the top surface of the workpiece contacts the punch 105 and the bottom surface contacts the die 102 to achieve stamping;

[0050] S2. When the punch 105 moves downward, it will first drive the guide rod 401 to move with it, so that the ball 403 is guided in the second guide groove 402, thereby driving the guide rod 401 to rotate. When the guide rod 401 rotates, it will drive the rotating pressing plate 404 to rotate with it, thereby continuously squeezing the lubricant in the liquid storage shell 400 and transporting it to the liquid transfer tube 405 through the through pipe 406. When the lubricant in the liquid transfer tube 405 increases, it will be transported to the liquid pipe 408 through the transmission plate 407, so that a certain amount of lubricant is discharged to the workpiece surface through the liquid spray port 410, and another part of the lubricant will be transported to the inside of the liquid tank 411 through the spring tube 409.

[0051] S3. When the punch 105 moves downward, the transmission sheet 407 will move downward with it, and the pressure slide 209 will move downward to squeeze the compression spring 210. At this time, the slide 209 will drive the levers 206 on both sides to tilt and pull the driven piston rod 204 to move upward. At this time, the driven piston rod 204 moves upward to extract air from the air groove 201. At this time, the top bar 200 is close to the inside of the die 102, so that the piston end of the auxiliary piston rod 307 slides inside the side groove 301, and the transmission bar 308 slides inside the reset groove 305.

[0052] S4. When the punch 105 completes stamping the workpiece, it drives the punch 105 to reset. At this time, the slide 209 disengages from the resistance of the transmission plate 407 and drives the driven piston rod 204 to reset under the action of the compression spring 210 and the reset spring 203, so that the gas in the gas groove 201 pushes the active piston rod 202 and the fixed ring 306 to move. At this time, the movement of the active piston rod 202 will drive the top bar 200 to move upward so that the workpiece is pushed. At the same time, the auxiliary piston rod 307 is subjected to force to drive the transmission bar 308 to slide in the first guide groove 304, so that the rotating rod 302 rotates and drives the scraper 303 to rotate and scrape the lubricant to be discharged through the drain hole 300. At this time, the lubricant fills the inside of the die 102, and when the active piston rod 202 passes over the exhaust groove 205, the gas will be discharged to reset the active piston rod 202.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic punching device for processing an LED street lamp frame, comprising a base (100) and a top frame (101), characterized in that: A concave mold (102) adapted to the frame workpiece of the LED street lamp is provided inside the base (100), a convex mold (105) adapted to the frame of the LED street lamp is provided below the top frame (101), a plurality of support rods (103) are commonly connected between the base (100) and the top frame (101), a liquid storage shell (400) for storing lubricant is provided on the top of the convex mold (105), liquid pipes (408) for spraying lubricant are provided on both sides of the convex mold (105), an infusion component for driving the lubricant in the liquid storage shell (400) is provided inside the top frame (101), a top strip (200) is provided inside the concave mold (102), a plurality of drainage holes (300) for the lubricant to pass through are provided on the inner wall of the concave mold (102), and a drainage component for driving the lubricant to be sprayed out through the drainage holes (300) is provided inside the base (100); The infusion assembly comprises a guide rod (401) arranged inside the top frame (101), the bottom of the guide rod (401) extends to the inside of the liquid storage shell (400) for rotational connection, and the outer surface of the guide rod (401) located inside the liquid storage shell (400) is fixedly connected to a rotating pressing plate (404), the top of the male mold (105) is fixedly connected to a liquid transfer tube (405), the liquid transfer tube (405) and the liquid storage shell (400) are connected via a through tube (406), the two ends of the liquid transfer tube (405) are respectively fixedly connected and connected to transmission plates (407), the transmission plate (407) is fixedly connected to the liquid tube (408), and the bottom of the liquid tube (408) is provided with a plurality of liquid spraying ports (410); The base (100) is provided with a plurality of air grooves (201) inside, one end of each of the plurality of air grooves (201) is slidably connected to an active piston rod (202) adapted thereto, each of the plurality of active piston rods (202) is fixedly connected to the top bar (200) respectively, the other end of each of the plurality of air grooves (201) is slidably connected to a passive piston rod (204) adapted thereto, and the outer surfaces of each of the plurality of passive piston rods (204) are sleeved with a reset spring (203) for self-reset; The top of the base (100) is fixedly connected to a plurality of slides (208), the interiors of the plurality of slides (208) are slidably connected to slide seats (209), both sides of the plurality of slide seats (209) are rotatably connected to levers (206), and the interiors of the plurality of slides (208) are fixedly connected to compression springs (210) fixedly connected to the slide seats (209), the transmission sheet (407) is in contact with the slide seats (209), the top of the base (100) is fixedly connected to a plurality of supports (207) rotatably connected to the middle ends of the levers (206), one end of the levers (206) is provided with a slide groove (211), and the top of the driven piston rod (204) is slidably connected to the slide groove (211).

2. The pneumatic punching device for processing the frame of an LED street lamp according to claim 1, characterized in that: A plurality of balls (403) are rotatably connected inside the top frame (101), a second guide groove (402) for the balls (403) to roll is spirally opened on the outer surface of the guide rod (401), a stamping cylinder (104) is fixedly connected to the top of the top frame (101), and an output end of the stamping cylinder (104) passes through the top frame (101) and is fixedly connected to the punch (105).

3. The pneumatic punching device for processing the frame of an LED street lamp according to claim 1, characterized in that: The liquid drainage assembly comprises a liquid tank (411) disposed inside the base (100), and the liquid tank (411) is connected to a plurality of liquid drainage holes (300); the top of the liquid tank (411) is connected to a spring tube (409) connected to a liquid pipe (408); the interior of the liquid tank (411) is rotatably connected to a rotating rod (302); and the outer surface of the rotating rod (302) is fixedly connected to a scraper blade (303).

4. The pneumatic punching device for processing the frame of an LED street lamp according to claim 3, characterized in that: One side of each of the plurality of air grooves (201) is connected to a side groove (301); a fixing ring (306) is fixedly connected inside the side groove (301); an auxiliary piston rod (307) whose piston end is adapted to the side groove (301) is slidably connected inside the fixing ring (306); a cavity is provided inside the rotating rod (302); a reset groove (305) is provided inside the cavity; a first guide groove (304) connected to the reset groove (305) is provided inside the cavity; and a transmission bar (308) slidably connected to the first guide groove (304) is fixedly connected to the outer surface of the auxiliary piston rod (307).

5. The pneumatic punching device for processing the frame of an LED street lamp according to claim 1, characterized in that: An exhaust groove (205) communicating with the outside is provided inside the air groove (201).

6. The pneumatic punching device for processing the frame of an LED street lamp according to claim 4, characterized in that: A tension spring (309) is sleeved on the outer surface of the auxiliary piston rod (307), one end of the tension spring (309) is fixedly connected to the fixing ring (306), and the other end of the tension spring (309) is fixedly connected to the piston end of the auxiliary piston rod (307).

7. A pneumatic stamping method for processing an LED street lamp frame, using a pneumatic stamping device for processing an LED street lamp frame as described in any one of claims 1 to 6, characterized in that: The following steps are involved: S1. When in use, the workpiece is first placed inside the die (102), and then the punch (105) is pushed downward to contact the workpiece inside the die (102), so that the workpiece is subjected to force and its top surface contacts the punch (105), while its bottom surface contacts the die (102), thereby achieving stamping; S2. When the punch (105) moves downward, it drives the infusion assembly to move and deliver the lubricant to the liquid pipe (408), thereby causing a certain amount of lubricant to be discharged onto the surface of the workpiece; S3. When the punch (105) completes punching the workpiece, the punch (105) is driven to reset, which in turn drives the top bar (200) to move upward so that the workpiece is pushed. At the same time, the drainage component operates to discharge part of the lubricant through the drainage hole (300). At this time, the lubricant fills the interior of the die (102).

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