A stamping device for reducing deformation in the production of LED switching power supplies

Abstract

The present invention discloses a stamping device for reducing deformation for producing LED switching power supplies, which relates to the field of stamping and comprises a mounting mechanism, wherein the mounting mechanism comprises a mounting frame, a mounting ring is provided below the mounting frame, a punch is rotatably connected inside the mounting ring, stamping structures are provided on both sides of the mounting ring, an adjusting component is provided below the punch, and the stamping structure comprises a hydraulic cylinder 1, wherein the number of the hydraulic cylinder 1 is two, and during stamping operation, a push rod 1 contacts a workpiece and pushes a piston 1 to squeeze the hydraulic oil inside the hydraulic cylinder 1, thereby converting hydraulic energy into mechanical energy, and changing the process of direct separation by extrusion in the traditional stamping process to a process of rotary cutting, wherein the extrusion force serves as an auxiliary force to assist the cutting block in the device to maintain sufficient contact pressure with the workpiece, thereby cooperating with the rotation of the cutting block to cut and punch the workpiece, so that the edge above the hole will not be subjected to excessive pressure, and thus no sinking deformation will occur.

Description

Technical Field

[0001] The present invention relates to the field of stamping technology, in particular to a stamping device for reducing deformation used in the production of LED switching power supplies. Background Art

[0002] According to existing data, the protective shell of the LED switching power supply is generally made of metal, and in order to facilitate heat dissipation, a number of heat dissipation holes are opened on the surface of the metal shell. This is usually done by punching, and then bent into the shell shape by punching. Stamping is a process in which a press and a die are used to apply external force to plates, strips, pipes and profiles to produce plastic deformation or separation.

[0003] The following problems still exist in the daily use of existing authorized patents, existing equipment with the same technology, and equipment of the same type with similar technology:

[0004] 1: During the stamping process, the die supports the surrounding area of the stamping area, causing the workpiece to deform according to the shape of the die. When stamping some soft or thick workpieces, the part of the workpiece in contact with the punch head is sheared by the punch until it separates. However, the area around the contact point between the punch head and the workpiece will sink and deform due to the force applied by the punch head. That is, the upper edge of the hole formed by the punching is in a sunken state, causing the shape of the workpiece to change and not conform to the expected shape after processing. The impact is particularly significant when stamping precision workpieces, and may even cause the workpiece to be unable to be used normally.

[0005] 2: On the casing of the LED switching power supply, circular holes of different diameters need to be punched due to heat dissipation and installation requirements. The punching operation requires a punching head to be carried out in conjunction with a mold. The punching head is specialized, and different sizes of circular holes also require the replacement of different punching heads. When making some more complex workpieces, it may be necessary to replace several punching heads with designed molds to perform stamping operations. When installing the punch, if it is not installed accurately and stably, it will cause the punch to shake or the stamping position to shift. Frequent replacement will increase the probability of non-standard installation, resulting in the punched holes not meeting the standards, causing damage to the workpiece and increased cost losses. Summary of the Invention

[0006] To address the above shortcomings, the present invention provides the following technical solutions: A stamping device for reducing deformation for the production of LED switching power supplies, comprising a mounting mechanism, the mounting mechanism comprising a mounting frame, a mounting ring disposed below the mounting frame, a punch rotatably connected to the interior of the mounting ring, stamping structures disposed on both sides of the mounting ring, and an adjustment assembly disposed below the punch;

[0007] The stamping structure includes two hydraulic cylinders, each of which is fixedly connected to both ends of the mounting ring. A piston is provided in the interior of the hydraulic cylinder, and a push rod is fixedly connected to the bottom end of the piston. During stamping operation, the push rod contacts the workpiece and pushes the piston to squeeze the hydraulic oil in the hydraulic cylinder, thereby converting hydraulic energy into mechanical energy.

[0008] The adjusting assembly includes an adjusting block 1, four adjusting rods are evenly arranged around the adjusting block 1, and the bottom ends of the adjusting rods are all provided with cutting blocks. The cutting blocks and the punch rotate simultaneously, and the upper and lower ends of the adjusting rods are respectively connected to the adjusting block 1 and the cutting block for rotation. The punching area of the punching workpiece is rotated and cut, and the extrusion process is converted into a rotary cutting motion, so that the position around the punching area will not be deformed by extrusion.

[0009] Furthermore, the stamping structure also includes hydraulic cylinder 2, and the number of the hydraulic cylinder 2 is two. The two hydraulic cylinders 2 are respectively located on the front and rear sides of the punch. The surfaces of the two hydraulic cylinders 1 are respectively fixed and connected with connecting pipes, and the two connecting pipes are respectively fixed and connected with the two hydraulic cylinders 2.

[0010] Furthermore, the internal seal of the hydraulic cylinder 2 is provided with a piston 2, and the side of the piston 2 away from the connecting pipe on the same side is fixedly connected to the push rod 2, and the push rod 2 extends through the piston 2 to the outside of the piston 2. The side of the piston 2 close to the punch is provided with a rack, and the rack is fixedly connected to the push rod 2 on the same side.

[0011] Furthermore, the hydraulic cylinder 1, piston 1, connecting pipe, hydraulic cylinder 2 and piston 2 form a sealing system, the sealing system is filled with hydraulic oil, and the piston 1 and piston 2 are two contact surfaces that can withstand hydraulic pressure and move.

[0012] Furthermore, a gear is fixedly connected to the top of the punch, and the gear and the rack are meshed with each other. The side of the second hydraulic cylinder close to the punch is fixedly connected to a slide rail. A slider is slidingly provided inside the first hydraulic cylinder, and the sliders are fixedly connected to the rack on the same side. A spring is provided inside the slide rail, and the two ends of the spring are fixedly connected to the slider and the inner wall of the slide rail respectively.

[0013] Furthermore, the adjustment assembly also includes movable rails, the number of which corresponds to the cutting blocks, the movable rails are all fixedly connected to the bottom end of the punch, the movable rails are respectively located directly above the cutting blocks, and the tops of the cutting blocks are fixedly connected to adjustment blocks 2, and the adjustment blocks 2 are slidably connected to the inside of the movable rails.

[0014] Furthermore, a pointer is fixedly connected to the top of each of the two adjusting blocks, a size mark is provided above the movable rail, and the pointer points to the size mark.

[0015] Furthermore, an adjustment rail is provided through the side of the movable rail, a nut is slidably connected to the inside of the adjustment rail, a bolt is threadedly connected to the inside of the nut, and the bolt is in contact with the adjustment block 2 to fix the adjustment block 2.

[0016] Furthermore, the internal seal of the punch is provided with a piston three, the bottom end of the piston three is fixedly connected to a push rod three, the push rod three is inserted into the interior of the adjusting block one, the bottom end of the push rod three extends to the bottom of the punch, and the horizontal position of the bottom end of the push rod three is lower than the horizontal position of the bottom end of the cutting block.

[0017] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0018] 1. By setting gears, punches, and cutting blocks, and using the vertical pressure applied by the hydraulic system on the punch press to drive the gears, punches, and cutting blocks to rotate, the traditional stamping process of direct separation by extrusion is changed to a rotary cutting process. The extrusion force serves as an auxiliary force to help the cutting block in the device maintain sufficient contact pressure with the workpiece, thereby coordinating the rotation of the cutting block to cut and punch the workpiece, so that the edge above the hole will not be subjected to excessive pressure, and no sinking deformation will occur, thereby reducing the degree of deformation of the workpiece during the stamping process, reducing the degree of deformation of the workpiece, and improving the qualified rate of the workpiece after processing. It also avoids the situation where thicker or softer workpieces are greatly deformed under pressure, making the workpiece unable to be used normally, avoiding increased workpiece damage rate and cost loss;

[0019] 2. A sealing system is formed between the hydraulic cylinder 1, the piston 1, the connecting pipe, the hydraulic cylinder 2, and the piston 2. Through the two sets of sealing systems, the force applied on the punch press is doubled and applied to the gear, so that the gear, punch, and cutting block have sufficient force for rotational cutting. This allows the device to smoothly complete the rotational cutting and punching operations when processing some hard metal workpieces. In addition, the two sets of sealing systems ensure that the gear, punch, and cutting block have sufficient force for stable rotational cutting of the workpiece and a certain rotational cutting speed, thereby ensuring that the contact position of the cutting block on the workpiece can be quickly cut and separated, avoiding the situation where the cutting position on the workpiece cannot be smooth and regular due to insufficient force.

[0020] 3. By setting the movable rail and size marking, the user can adjust the distance between the cutting blocks according to the punching size requirements, and can accurately determine the punching size after the cutting block is adjusted by using the pointer and size marking, so that the device can be flexibly adjusted to adapt to different punching size requirements, without the need for frequent replacement, to avoid the punching head being installed non-standardly due to frequent replacement, causing shaking during punching, resulting in non-standard hole shape or offset of the punching position. The device can be adjusted quickly and flexibly to maintain the accuracy and stability of the punching operation, and the cutting block can be accurately adjusted according to the expected hole size through the size marking;

[0021] 4. During the stamping process, the push rod 3 collides with the workpiece, driving the piston 3 to squeeze the air inside the punch, increasing the air pressure inside the punch. After the punching is completed, the piston 3 and the push rod 3 are pushed down by the rebound force of the air pressure, and the metal block punched and cut from the middle of the cutting block is pushed out of the cutting block to prevent the metal block from getting stuck inside the cutting block, making it impossible to continue working. It also prevents the metal block from being removed from the middle of the cutting block in time and constantly accumulating in the middle, causing the movement process of the adjustment component to be interfered with and unable to proceed smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front perspective structural diagram of the present invention;

[0023] Figure 2 It is a top-down perspective structural diagram of the present invention;

[0024] Figure 3 It is a three-dimensional structural diagram of the stamping structure of the present invention;

[0025] Figure 4 This is a three-dimensional cross-sectional structural diagram of the connection between the hydraulic cylinder 1 and the hydraulic cylinder 2 in the present invention;

[0026] Figure 5 This is a cross-sectional structural diagram of the three-dimensional connection between the hydraulic cylinder 2 and the slide rail in the present invention;

[0027] Figure 6 It is a three-dimensional cross-sectional structural diagram of the punch in the present invention;

[0028] Figure 7 This is a three-dimensional structural diagram of the adjustment component in the present invention;

[0029] Figure 8 It is a partial three-dimensional structural diagram of the cutting block and the moving rail in the present invention;

[0030] Figure 9 It is a three-dimensional structural diagram of the punch, piston three and push rod three in the present invention.

[0031] The numbers in the figure represent:

[0032] 100. Mounting mechanism; 101. Mounting frame; 102. Mounting ring; 103. Punch;

[0033] 200, stamping structure; 201, hydraulic cylinder 1; 202, piston 1; 203, push rod 1; 204, hydraulic cylinder 2; 205, connecting pipe; 206, piston 2; 207, push rod 2; 208, rack; 209, gear; 210, slide rail; 211, slider; 212, spring;

[0034] 300. Adjustment assembly; 301. Adjustment block one; 302. Adjustment rod; 303. Cutting block; 304. Moving rail; 305. Adjustment block two; 306. Pointer; 307. Size mark; 308. Adjustment rail; 309. Nut; 310. Bolt; 311. Piston three; 312. Push rod three. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0036] The present invention will be further described below with reference to the embodiments.

[0037] This embodiment is a stamping device for reducing deformation for producing LED switching power supplies, such as Figure 1 - Figure 9 As shown, the mounting mechanism 100 includes a mounting frame 101, a mounting ring 102 is provided below the mounting frame 101, a punch 103 is rotatably connected to the inside of the mounting ring 102, a punching structure 200 is provided on both sides of the mounting ring 102, and an adjustment assembly 300 is provided below the punch 103;

[0038] The stamping structure 200 includes two hydraulic cylinders 201, each of which is fixedly connected to both ends of the mounting ring 102. A piston 202 is provided inside the hydraulic cylinder 201 for sealing. The bottom end of the piston 202 is fixedly connected to a push rod 203. During stamping operation, the push rod 203 contacts the workpiece and pushes the piston 202 to squeeze the hydraulic oil inside the hydraulic cylinder 201, thereby converting hydraulic energy into mechanical energy.

[0039] As a preferred implementation in this embodiment, Figure 3 - Figure 5As shown, the punching structure 200 further includes a hydraulic cylinder 2 204. There are two hydraulic cylinders 204, which are respectively located on the front and rear sides of the punch 103. Connecting pipes 205 are respectively fixed to and communicated with the surfaces of the two hydraulic cylinders 1 201. The two connecting pipes 205 are respectively fixed to and communicated with the two hydraulic cylinders 204.

[0040] The hydraulic cylinder 204 is sealed with a piston 206. The side of the piston 206 away from the connecting pipe 205 on the same side is fixedly connected to a push rod 207. The push rod 207 passes through the piston 206 and extends to the outside of the piston 206. The side of the piston 206 close to the punch 103 is provided with a rack 208. The rack 208 is fixedly connected to the push rod 207 on the same side.

[0041] The hydraulic cylinder 1 201, the piston 1 202, the connecting pipe 205, the hydraulic cylinder 2 204, and the piston 2 206 form a sealing system. The sealing system is filled with hydraulic oil. The piston 1 202 and the piston 2 206 are two contact surfaces that can withstand hydraulic pressure and move. The areas of the piston 1 202 and the piston 2 206 are the same. When the stamping equipment drives the device to press down, the push rod 1 203 contacts the workpiece and moves upward, driving the piston 1 202 to squeeze the hydraulic oil inside the sealing system, pushing the piston 206, the push rod 207, and the rack 208 to move. The two sets of racks 208 drive the gear 209 to rotate, and the punch 103 is driven to rotate by the hydraulic pressure of the stamping equipment.

[0042] As a preferred implementation in this embodiment, Figure 3 As shown, the top of the punch 103 is fixedly connected with a gear 209, and the gear 209 and the rack 208 are meshed with each other. The hydraulic cylinder 204 is fixedly connected to the side of the punch 103 with a slide rail 210. The hydraulic cylinder 1 201 is internally provided with a slider 211 for sliding, and the sliders 211 are fixedly connected to the rack 208 on the same side. A spring 212 is provided inside the slide rail 210, and the two ends of the spring 212 are respectively fixedly connected to the slider 211 and the inner wall of the slide rail 210. The rebound force generated by the squeezing deformation of the rack 208 and the slider 211 on the spring 212 drives the rack 208 and other components to return to their initial state after the device completes a stamping and rising.

[0043] Comparison with existing authorized patents and equipment with the same technology and similar technology equipment of the same type achieves the following results:

[0044] 1: By setting the gear 209, the punch 103, and the cutting block 303, the vertical pressure applied by the hydraulic system on the punching machine is used to drive the gear 209, the punch 103 and the cutting block 303 to rotate, and the process of direct separation by extrusion in the traditional stamping process is changed to a rotary cutting process. The extrusion force serves as an auxiliary force to assist the cutting block 303 in the present device to maintain sufficient contact pressure with the workpiece, thereby cooperating with the rotation of the cutting block 303 to cut and punch the workpiece, so that the edge above the hole will not be subjected to excessive pressure, and no sinking deformation will occur, thereby reducing the deformation degree of the workpiece during the stamping process, reducing the deformation degree of the workpiece, improving the qualified rate of the workpiece after processing, and avoiding the situation where thicker or softer workpieces are greatly deformed under pressure, making the workpiece unable to be used normally, avoiding increasing the damage rate of the workpiece and cost loss;

[0045] 2: The hydraulic cylinder 1 201, the piston 1 202, the connecting pipe 205, the hydraulic cylinder 204 and the piston 206 form a sealing system. Through the two sets of sealing systems, the force applied on the punch press is doubled and applied to the gear 209, so that the gear 209, the punch 103 and the cutting block 303 have sufficient force for rotational cutting, so that the device can smoothly complete the rotational cutting and punching operations when processing some metal workpieces with a relatively hard texture. In addition, through the two sets of sealing systems, the gear 209, the punch 103 and the cutting block 303 have sufficient force for stable rotational cutting of the workpiece and ensure a certain rotational cutting speed, so that the position where the cutting block 303 contacts the workpiece can be quickly cut and separated, avoiding the situation where the cutting position on the workpiece cannot reach a smooth and regular state due to insufficient force.

[0046] In other aspects, this embodiment also provides a stamping device for reducing deformation in the production of LED switching power supplies, such as Figure 1 - Figure 9 As shown, the adjustment assembly 300 includes an adjustment block 301, and four adjustment rods 302 are evenly arranged around the adjustment block 301. The bottom ends of the adjustment rods 302 are all provided with cutting blocks 303. Through the simultaneous rotation of the cutting blocks 303 and the punch 103, the upper and lower ends of the adjustment rods 302 are rotatably connected to the adjustment block 301 and the cutting blocks 303 respectively. The adjustment rods 302 are restricted by the adjustment block 301 and the cutting blocks 303 and can only rotate around the connection point with the adjustment block 301 and the cutting blocks 303. Other position states cannot be changed. For the rotational cutting of the punching area of the punching workpiece, the extrusion process is converted into a rotary cutting motion, so that the position around the punching area will not be squeezed and deformed.

[0047] As a preferred implementation in this embodiment, Figure 6 - Figure 9As shown, the adjustment assembly 300 further includes movable rails 304. The number of movable rails 304 corresponds to the number of cutting blocks 303. The movable rails 304 are all fixedly connected to the bottom end of the punch 103. The movable rails 304 are respectively located directly above the cutting blocks 303. The tops of the cutting blocks 303 are all fixedly connected to the second adjustment blocks 305. The second adjustment blocks 305 are slidably connected to the interior of the movable rails 304.

[0048] A pointer 306 is fixedly connected to the top of each adjusting block 305. A size mark 307 is provided above the movable rail 304. The pointer 306 points to the size mark 307. Through the cooperation between the pointer 306 and the size mark 307, the user can accurately adjust the distance between the cutting blocks 303 according to the punching size, thereby adapting to different punching size requirements.

[0049] An adjustment rail 308 is provided on the side of the movable rail 304. A nut 309 is slidably connected to the interior of the adjustment rail 308. A bolt 310 is threadedly connected to the interior of the nut 309. The bolt 310 contacts the second adjustment block 305, and the contact and extrusion force fixes the second adjustment block 305.

[0050] As a preferred implementation in this embodiment, Figure 6 - Figure 9 As shown, the internal seal of the punch 103 is provided with a piston three 311, and the bottom end of the piston three 311 is fixedly connected to the push rod three 312, and the push rod three 312 is inserted into the interior of the adjusting block one 301, that is, the push rod three 312 can slide vertically inside the adjusting block 301, and the bottom end of the push rod three 312 extends to the bottom of the punch 103, and the horizontal position of the bottom end of the push rod three 312 is lower than the horizontal position of the bottom end of the cutting block 303. The push rod three 312 first contacts the workpiece, pushes the piston three 311 to squeeze the air inside the space above the punch 103, and waits for the subsequent cutting to be completed, and then pushes the piston three 311 and the push rod three 312 to reset by air pressure, and pushes out the metal block cut in the middle of the cutting block 303.

[0051] Comparison with existing authorized patents and equipment with the same technology and similar technology equipment of the same type achieves the following results:

[0052] 1: By setting the movable rail 304 and the size mark 307, the user can adjust the spacing between the cutting blocks 303 according to the punching size requirements, and cooperate with the pointer 306 and the size mark 307 to accurately determine the punching size of the cutting block 303 after adjustment, so that the device can be flexibly adjusted to adapt to different punching size requirements, without the need for frequent replacement. Frequent replacement can avoid non-standard installation of the punching head, which may cause shaking during punching, resulting in non-standard hole shape or offset of the punching position. The device can be adjusted quickly and flexibly to maintain the accuracy and stability of the punching operation, and the cutting block 303 can be accurately adjusted according to the expected hole size through the size mark 307;

[0053] 2: During the punching process, the push rod 312 collides with the workpiece, driving the piston 311 to squeeze the air inside the punch 103, thereby increasing the air pressure inside the punch 103. After the punching is completed, the piston 311 and the push rod 312 are pushed down by the rebound force of the air pressure, and the metal block punched and cut from the middle of the cutting block 303 is pushed out of the cutting block 303, thereby preventing the metal block from getting stuck inside the cutting block 303, making it impossible to continue working, and preventing the metal block from being removed from the middle of the cutting block 303 in time and constantly accumulating in the cutting block 303, causing the movement process of the adjustment component 300 to be interfered with and unable to proceed smoothly.

[0054] The above complete working principle and working process are as follows:

[0055] Please refer to Figures 1 to 9When in use, the user first moves the device to the hydraulic drive of the punch press, and then installs the mounting bracket 101 and the hydraulic rod stably according to the standard. When the punching operation starts, the punch press is started to drive the device to move toward the workpiece. First, the push rod 1 203 contacts the workpiece or the mold first, pushing the push rod 1 203 and the piston 1 202 to move upward. It is known that the hydraulic cylinder 1 201, the piston 1 202, the connecting pipe 205, the hydraulic cylinder 204, and the piston 2 206 form a sealing system. The sealing system is filled with hydraulic oil. The piston 1 202 and the piston 2 206 are two contact surfaces that can withstand hydraulic pressure and move. The area of the piston 1 202 and the piston 2 206 is the same. The piston 1 202 squeezes the hydraulic oil, and the force of the punch press driving the push rod 1 203 to contact the mold is completely transmitted to the piston 2 206 and the push rod 2 207 through the hydraulic oil. The liquid is not compressible, so this device Driven by the hydraulic system on the punch press, the reaction force of the push rod 1 203 against the mold or workpiece is the same as the force applied by the hydraulic system on the punch press, then the piston 1 202 squeezes the hydraulic oil, and the force transmitted to the piston 2 206 and the push rod 2 207 through the hydraulic oil is also the same as the force applied by the hydraulic system on the punch press, and the two racks 208 are driven by the push rod 207 to push the gear 209 to rotate. The thrust of the rack 208 borne by the gear 209 is equivalent to twice the force applied by the hydraulic system on the punch press, and the gear 209 drives the punch 103 to rotate, and the punch 103 drives the adjusting assembly 300 below it to rotate at the same time. During the movement of the rack 208, the slider 211 is driven to move inside the slide rail 210 and squeeze the spring 212. When a single punching is completed, the device rises under the drive of the hydraulic system on the punch press. At this time, the above-mentioned components are driven to move in the opposite direction by the rebound force of the spring 212 until they return to their initial state.

[0056] After the auger 311 is in the air, the auger 311 is in the air, and the auger 311 is in the air. The cam 303 is pressed against the workpiece 303 and the workpiece is cut into pieces by the cam 303. The cam 303 is pressed against the workpiece 303 and the workpiece is cut into pieces by the cam 303.

[0057] When it is necessary to punch circular holes of different diameters, the user can rotate the bolt 310 so that the bolt 310 no longer contacts the adjusting block 2 305 under the cooperation with the thread of the nut 309. Then the user pushes and pulls the cutting block 303, driving the adjusting block 2 305 and the pointer 306 to move. In combination with the pointer 306 and the size mark 307, the user can accurately adjust the spacing between the cutting blocks 303 according to the size requirements of the circular holes. After the adjustment is completed, the user can rotate the bolt 310 again so that the bolt 310 conflicts with the adjusting block 2 305, thereby fixing the adjusting block 2 305 and the cutting block 303.

[0058] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A stamping device for reducing deformation in the production of LED switching power supplies, comprising: The mounting mechanism (100) comprises a mounting frame (101), a mounting ring (102) is provided below the mounting frame (101), a punch (103) is rotatably connected inside the mounting ring (102), and is characterized in that punching structures (200) are provided on both sides of the mounting ring (102), and an adjustment component (300) is provided below the punch (103); The punching structure (200) includes a hydraulic cylinder (201), the number of the hydraulic cylinders (201) is two, the hydraulic cylinders (201) are fixedly connected to the two ends of the mounting ring (102), the interior of the hydraulic cylinder (201) is sealed with a piston (202), the bottom end of the piston (202) is fixedly connected with a push rod (203), when the punching is in operation, the push rod (203) contacts the workpiece and pushes the piston (202) to squeeze the hydraulic oil inside the hydraulic cylinder (201), thereby converting the hydraulic energy into mechanical energy; The adjusting assembly (300) comprises an adjusting block (301), four adjusting rods (302) are evenly arranged around the adjusting block (301), and the bottom ends of the adjusting rods (302) are all provided with cutting blocks (303). When the cutting blocks (303) and the punch (103) rotate simultaneously, the upper and lower ends of the adjusting rods (302) are respectively connected to the adjusting block (301) and the cutting block (303), so that the punching area of the punching workpiece is rotated and cut, and the extrusion process is converted into a rotary cutting motion, so that the position around the punching area will not be deformed by the extrusion.

2. A stamping device for reducing deformation for producing LED switching power supplies according to claim 1, characterized in that: The punching structure (200) further includes a hydraulic cylinder 2 (204), the number of the hydraulic cylinder 2 (204) being two, the two hydraulic cylinders 2 (204) being respectively located on the front and rear sides of the punch (103), the surfaces of the two hydraulic cylinders 1 (201) being respectively fixed with connecting pipes (205) and being connected, the two connecting pipes (205) being respectively fixed with and connected to the two hydraulic cylinders 2 (204).

3. The deformation-reducing stamping device for producing LED switching power supplies according to claim 2, characterized in that: The internal seal of the hydraulic cylinder 2 (204) is provided with a piston 2 (206), and the side of the piston 2 (206) away from the connecting pipe (205) on the same side is fixedly connected with a push rod 2 (207), and the push rod 2 (207) passes through the piston 2 (206) and extends to the outside of the piston 2 (206). The side of the piston 2 (206) close to the punch (103) is provided with a rack (208), and the rack (208) is fixedly connected to the push rod 2 (207) on the same side.

4. The deformation-reducing stamping device for producing LED switching power supplies according to claim 3, characterized in that: The hydraulic cylinder 1 (201), piston 1 (202), connecting pipe (205), hydraulic cylinder 2 (204), and piston 2 (206) form a sealing system, which is filled with hydraulic oil. The piston 1 (202) and piston 2 (206) are two contact surfaces that can withstand hydraulic pressure and move.

5. The deformation-reducing stamping device for producing LED switching power supplies according to claim 2, characterized in that: The top end of the punch (103) is fixedly connected to a gear (209), and the gear (209) and the rack (208) are meshed with each other. The side of the second hydraulic cylinder (204) close to the punch (103) is fixedly connected to a slide rail (210), and a slider (211) is slidably provided inside the slide rail (210). The slider (211) is fixedly connected to the rack (208) on the same side. A spring (212) is provided inside the slide rail (210), and the two ends of the spring (212) are fixedly connected to the slider (211) and the inner wall of the slide rail (210) respectively.

6. The deformation-reducing stamping device for producing LED switching power supplies according to claim 1, characterized in that: The adjustment assembly (300) further comprises a movable rail (304), the number of the movable rails (304) corresponding to the number of the cutting blocks (303), the movable rails (304) are all fixedly connected to the bottom end of the punch (103), the movable rails (304) are all located directly above the cutting blocks (303), the top end of the cutting blocks (303) are all fixedly connected to the second adjustment block (305), and the second adjustment block (305) is slidably connected to the inside of the movable rail (304).

7. The deformation-reducing stamping device for producing LED switching power supplies according to claim 6, characterized in that: The top of the second regulating block (305) is fixedly connected with a pointer (306), and a size mark (307) is provided above the movable rail (304), and the pointer (306) points to the size mark (307).

8. The deformation-reducing stamping device for producing LED switching power supplies according to claim 6, characterized in that: An adjustment rail (308) is provided through the side of the movable rail (304), a nut (309) is slidably connected inside the adjustment rail (308), a bolt (310) is threadedly connected inside the nut (309), and the bolt (310) is in contact with the second adjustment block (305) to fix the second adjustment block (305).

9. The deformation-reducing stamping device for producing LED switching power supplies according to claim 1, characterized in that: The internal seal of the punch (103) is provided with a piston three (311), the bottom end of the piston three (311) is fixedly connected to a push rod three (312), the push rod three (312) is inserted into the interior of the adjustment block one (301), the bottom end of the push rod three (312) extends to the bottom of the punch (103), and the horizontal position of the bottom end of the push rod three (312) is lower than the horizontal position of the bottom end of the cutting block (303).

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