Intelligent hot stamping equipment for high-strength sheet metal parts

Abstract

The invention relates to the technical field of nonferrous metal stamping, and discloses high-strength sheet metal part intelligent hot stamping equipment which comprises an equipment base, a static die base is installed on the upper end face of the equipment base, two sets of positioning feeders are symmetrically installed at the positions, close to the edge, of the upper end of the static die base, and a heating cavity is formed in the static die base; and an air suction cover communicating with the heating cavity is installed on the left end face of the static mold base, an air suction pipe is connected to the outside of the air suction cover, and a heating compression tank is installed in the equipment base. The heating compression tank is designed, on one hand, a control valve of the heating compression tank is opened, high-temperature hot air in the release tank enters a heating cavity through a hot air pipe, and the high-temperature environment in the heating cavity is maintained; on the other hand, a control valve on the double-hole connector is opened, compressed air in the heating compression tank is evenly guided out from a plurality of sets of slag blowing holes through flowing of a pipe cavity, high-pressure blowing is conducted on the cleaning bristles, the lower extrusion face and the upper extrusion face, and the cleaning effect is improved in an auxiliary mode.

Description

Technical Field

[0001] This invention relates to the field of non-ferrous metal stamping technology, and in particular to an intelligent hot stamping equipment for high-strength sheet metal parts. Background Technology

[0002] Metal stamping is a processing method that uses dies to apply pressure to non-ferrous metal sheet metal parts or forgings on a press, causing them to undergo plastic deformation or separation, thereby obtaining parts with the required shape and performance. Its core feature is that metal forming is achieved through cold or hot processing, which has the advantages of high precision, high efficiency and mass production. On the one hand, during the stamping process, the metal sheet undergoes plastic deformation under the pressure of the die, and the rigidity and strength of the parts can be significantly improved through work hardening. On the other hand, it includes a variety of processes such as blanking, bending, deep drawing and spinning, which can process thin-walled parts with complex shapes, and is widely used in the automotive, electronics, home appliance and other industries.

[0003] Existing hot stamping equipment for non-ferrous metals suffers from several technical drawbacks. First, the manual loading and unloading of hot-pressed parts is time-consuming and labor-intensive, poorly suited to assembly line operations, resulting in low efficiency and poor positioning accuracy. Second, during mold closing, the instantaneous impact force at the moment of contact between the stamping head and the hot-pressed part can easily cause vibration or misalignment, affecting the stamping effect. Third, metal slag easily remains on the surface of the mold after hot stamping; if not cleaned promptly, it will form a layer of dust and clumps, resulting in an uneven mold surface that affects subsequent stamping. In summary, considering that existing facilities cannot meet the needs of work, we propose an intelligent hot stamping equipment for high-strength sheet metal parts. Summary of the Invention

[0004] The main objective of this invention is to provide an intelligent hot stamping equipment for high-strength sheet metal parts, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A high-strength sheet metal intelligent hot stamping equipment includes an equipment base, a stationary mold seat is installed on the upper surface of the equipment base, a conveyor is connected to the horizontal right side of the stationary mold seat, a feeding belt is provided on the upper surface of the conveyor, baffles are symmetrically installed on the upper surface of the conveyor and on both sides of the feeding belt, and a set of correction wheels for hot-pressing metal parts is provided at the left end of the conveyor, the set of correction wheels including 3-5 sets of correction wheels.

[0006] As a preferred embodiment of the intelligent hot stamping equipment for high-strength sheet metal parts described in this invention, two sets of positioning feeders are symmetrically installed at the upper edge of the stationary mold base. The upper surface of each set of positioning feeders is riveted to the upper surface of the equipment base via an L-shaped connecting arm. Each set of positioning feeders includes a drive motor, a drive wheel, a driven wheel, a tension wheel, and an annular chain plate. Several sets of positioning units are equidistantly distributed on the annular chain plate, preferably 3-5 sets. Each set of positioning units includes several sets of feeding fixtures equidistantly arranged, preferably 3-4 sets. The feeding fixture includes a feeding U-shaped sleeve, a positioning groove, and a clamping plate. The feeding U-shaped sleeve is fixed to the outer surface of the annular chain plate. The interior of the feeding U-shaped sleeve has a positioning groove extending outward. A clamping plate acting on the side of the hot-pressed metal part is movably arranged in the positioning groove. The clamping plate is connected to the groove wall of the positioning groove via several sets of telescopic springs, preferably 4 sets.

[0007] As a preferred embodiment of the intelligent hot stamping equipment for high-strength sheet metal parts described in this invention, the following features are provided: a guide platform is provided on the upper right side of the stationary die base; a heating chamber is provided inside the stationary die base; an air suction hood connected to the heating chamber is installed on the left end face of the stationary die base; an air suction pipe is connected to the outside of the air suction hood; a heating compression tank is installed inside the equipment base; a temperature compensator is provided inside the heating compression tank; an air suction pump is installed on the left end of the heating compression tank; the air suction pipe is connected to the air suction pump; and a hot air pipe connects the right end of the heating compression tank and the right end face of the stationary die base.

[0008] As a preferred embodiment of the intelligent hot stamping equipment for high-strength sheet metal parts described in this invention, the following features: a mold connection port communicating with the heating chamber is provided at the middle of the upper end face of the stationary mold base, through which the lower die moves; a push rod motor is vertically installed inside the equipment base; the push rod motor extends upward into the heating chamber and is equipped with multiple push rods; the multiple push rods are connected to the lower end face of the lower die; a material feeding block acting on the hot-pressed metal part is provided on the left side of the upper end face of the lower die; a lower extrusion surface is provided on the right side of the upper end face of the lower die; a side pressure roller is installed between the lower extrusion surface and the material feeding block; a side pressure groove interacting with the hot-pressed metal part is provided on the surface of the side pressure roller; wheel axles are symmetrically installed at both ends of the side pressure roller; the wheel axles are connected to the outer wall of the lower die through wheel bearings; a torsion spring groove is provided on the end face of the wheel axle, and a torsion spring connected to the wheel bearing is installed in the torsion spring groove.

[0009] As a preferred embodiment of the intelligent hot stamping equipment for high-strength sheet metal parts described in this invention, the equipment base is connected to the equipment top seat via a back plate. The equipment top seat and the equipment base are connected at their corners by four sets of support columns. A stamping cylinder is installed in the middle of the interior of the equipment top seat. A stamping rod is movably arranged inside the stamping cylinder, extending downwards from the lower end face of the equipment top seat. An upper punch head is provided at the lower end of the stamping rod. The lower end face of the upper punch head is provided with an upper extrusion surface.

[0010] As a preferred embodiment of the intelligent hot stamping equipment for high-strength sheet metal parts described in this invention, the upper punch head has a downward-facing storage groove inside, a telescopic column is movably arranged in the storage groove, a support block is connected to the upper end of the telescopic column, the top of the support block is connected to the groove wall of the storage groove through a compression spring, several sets of vertical teeth are symmetrically arranged on both sides of the support block, and adjusting gears that mesh with the vertical teeth are installed on both sides of the support block, the gear shaft of each set of adjusting gears is mounted on a positioning bearing, adjusting blocks are symmetrically and movably arranged on both outer sides of the upper punch head, an extension arm is connected to the end of the adjusting block, a portion of the adjusting block and the extension arm are limited inside the upper punch head, the upper end face of the extension arm has horizontal teeth that interact with the bottom of the adjusting gears, and the inner side of the adjusting block has an anti-slip part that interacts with the side of the hot-pressed metal part.

[0011] As a preferred embodiment of the intelligent hot stamping equipment for high-strength sheet metal parts described in this invention, the feeding fixture further includes a welding plate, a clamping cylinder, and a cylinder rod. The back of the U-shaped sleeve is connected by two sets of welding plates and an annular chain plate. A clamping cylinder is horizontally installed in the middle of the U-shaped sleeve. A cylinder rod is movably arranged horizontally outward inside the clamping cylinder. The end of the cylinder rod is fixed to the clamping plate.

[0012] As a preferred embodiment of the intelligent hot stamping equipment for high-strength sheet metal parts described in this invention, an unloading platform is connected to the left end of the stationary mold base and below the two sets of positioning feeders. A sliding channel is connected to the left end of the unloading platform. A cooling pool is provided below the sliding channel and at the left end of the equipment base. Circulating water is stored in the cooling pool.

[0013] As a preferred embodiment of the intelligent hot stamping equipment for high-strength sheet metal parts described in this invention, the upper and lower ends of the two sets of positioning feeders are symmetrically equipped with pre-cooling pipes. Each set of pre-cooling pipes is connected to the positioning feeder via a pipe rack, and there are two sets of pipe racks. Several sets of flushing holes for the upper and lower ends of the hot-pressed metal parts are respectively opened on the pipe walls of the two sets of pre-cooling pipes. The two sets of pre-cooling pipes are connected by a connecting pipe, and a water pumping pipe group is connected to the outside of the connecting pipe. The lower end of the water pumping pipe group extends into the cooling pool, and a water pump for the water pumping pipe group is installed in the cooling pool.

[0014] As a preferred embodiment of the intelligent hot stamping equipment for high-strength sheet metal parts described in this invention, a drive seat is horizontally mounted in the middle of the back plate. A guide groove is formed outward from the inside of the drive seat. A displacement arm is movably arranged in the guide groove. A rack is equidistantly arranged on the upper end face of the displacement arm. A drive gear is meshed on the upper end of the rack. The drive gear is sleeved on the output shaft of a servo motor. Both the drive gear and the servo motor are located inside the motor housing. The motor housing is riveted to the upper end face of the drive seat. A corrugated telescopic tube extends outward from the inside of the displacement arm. The corrugated telescopic tube extends outward and connects to the right end double-hole connector of the heating compression tank.

[0015] As a preferred embodiment of the intelligent hot stamping equipment for high-strength sheet metal parts described in this invention, the displacement arm is connected to a cleaning platform at one end away from the back plate. The cleaning platform has a sealed inner chamber that communicates with a corrugated telescopic tube. A rotating roller is installed through the middle of the sealed inner chamber. The rotating roller and the inner wall of the sealed inner chamber are connected by a sealed bearing. A large gear is sleeved in the middle of the rotating roller. A small gear is meshed on one side of the large gear. The small gear is sleeved on the output shaft of a uniform speed motor. The uniform speed motor is vertically mounted on a motor base, which is located on one side of the cleaning platform.

[0016] As a preferred embodiment of the intelligent hot stamping equipment for high-strength sheet metal parts described in this invention, the rotating roller has air pressure ports connected to the sealed inner chamber on its roller surface. The number of air pressure ports is preferably 4-6 sets. Cleaning heads are installed on both the upper and lower end faces of the rotating roller. Slag blowing holes connected to the air pressure ports are evenly distributed on the cleaning heads. Several sets of cleaning bristles are arranged alternately on the cleaning heads and the slag blowing holes. The cleaning bristles are coated with a high-temperature resistant coating. The cleaning bristles act on the lower extrusion surface and the upper extrusion surface respectively.

[0017] This invention provides an intelligent hot stamping equipment for high-strength sheet metal parts, which has the following significant improvements and advantages compared with the prior art: The design incorporates a feeding fixture. Two sets of drive motors for positioning feeders are activated, causing two sets of circular chain plates to move in opposite clockwise directions. The feeding fixtures in one of the positioning units on the circular chain plates move towards each other. On one hand, the fixture moves from the right-hand corner of the positioning feeder to a straight position, using two sets of U-shaped sleeves and the sides of the hot-pressed metal part to bring it into the positioning groove and press against the clamping plate, creating a clamping operation. The left end of the hot-pressed metal part is blocked by a material-pushing block and, through forced force, detaches from the positioning unit and falls downwards into the lower die, achieving automatic feeding and positioning. On the other hand, the positioning unit moves to above the die connection port, activating several sets of clamping cylinders. The cylinder rods drive the clamping plates to extend outside the positioning groove until they contact the sides of the hot-pressed metal part, forming a centered clamping. This continues until the fixture reaches the left-hand corner of the positioning feeder, where the clamping plates are released sequentially, releasing the hot-pressed metal part onto the unloading platform, achieving automatic unloading. This design is time-saving, labor-saving, highly intelligent, and effectively adaptable to assembly lines.

[0018] The heated compression tank is designed to, on the one hand, open the control valve of the heated compression tank to release the high-temperature hot air inside the tank into the heating chamber through the hot air pipe, maintaining the high-temperature environment inside the heating chamber and preventing the hot-pressed metal parts from cooling down too quickly due to the low ambient temperature, which would affect the stamping effect; on the other hand, open the control valve on the double-hole connector to allow the compressed air inside the heated compression tank to flow through the pipe and be evenly discharged from several sets of slag blowing holes, so as to perform high-pressure blowing on the cleaning brush bristles, the lower extrusion surface and the upper extrusion surface, thereby helping to improve the cleaning effect.

[0019] During stamping, the telescopic column is completely pressed back into the receiving groove, causing the support block to move upward. This, through the meshing of the vertical teeth, causes the two sets of adjusting gears to rotate counterclockwise. As the adjusting gears rotate, through the meshing of the horizontal teeth, they drive the two sets of adjusting blocks to move in opposite directions. At the same time, the anti-slip part acts on the side of the hot-pressed metal part to limit its movement, avoiding deviation caused by instantaneous force. This achieves the effect of automatic limiting and shock absorption, improving the accuracy of stamping.

[0020] Start the water pump, and the water pumping pipe group draws circulating water from the cooling pool and injects it into two sets of pre-cooling pipes. The water is then sprayed out from several sets of flushing holes to thoroughly flush and cool the upper and lower surfaces of the moving hot-pressed metal parts. This reduces the temperature of the hot-pressed metal parts in advance and prevents deformation due to impacts during transportation, thus achieving a protective effect.

[0021] The suction pump is activated, generating suction at the suction hood to absorb the insufficiently heated air in the heating chamber. At the same time, most of the heat lost by the hot-pressed metal parts is also absorbed. Combined with the air supply duct, a thermal circulation is formed to maintain the temperature of the hot-pressed metal parts and improve the stamping quality of the hot-pressed metal parts. The hot air is injected into the heating compression tank through the suction pipe for temperature compensation, so as to make full use of the waste heat. It is energy-saving, environmentally friendly, and highly intelligent. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a high-strength sheet metal intelligent hot stamping equipment in one direction according to the present invention. Figure 2 This is a schematic diagram of the overall structure of a high-strength sheet metal intelligent hot stamping equipment from another direction according to the present invention; Figure 3 This is a schematic diagram of the upper structure of the base of the device of the present invention; Figure 4 This is a schematic diagram of the specific structure of the positioning feeder of the present invention; Figure 5 This is a schematic diagram of the specific structure of the feeding fixture in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the external structure of the static mold base of the present invention; Figure 7 This is a schematic diagram of the specific structure of the lower die of the present invention; Figure 8 This is a schematic diagram of the specific structure of the side pressure wheel of the present invention; Figure 9 This is a schematic diagram of the specific structure of the upper punch head of the present invention; Figure 10 This is a schematic diagram of the transmission structure of the telescopic column of the present invention; Figure 11 This is a schematic diagram of the transmission structure of the adjusting block of the present invention; Figure 12 This is a schematic diagram of the left end connection of the device base in Embodiment 2 of the present invention; Figure 13 This is a schematic diagram of the specific structure of the feeding fixture in Embodiment 2 of the present invention; Figure 14 This is a schematic diagram of the connection of the pre-cooling pipe of the present invention; Figure 15 This is a schematic diagram of the installation position of the drive seat in Embodiment 3 of the present invention; Figure 16 This is a schematic diagram of the transmission structure of the displacement arm of the present invention; Figure 17 This is a schematic diagram of the internal structure of the cleaning frustum of the present invention.

[0023] In the diagram: 1. Equipment base; 2. Conveyor; 3. Feeding belt; 4. Correcting wheel assembly; 5. Hot-pressed metal parts; 6. Baffle; 10. Static mold base; 11. Positioning feeder; 12. L-shaped connecting arm; 13. Drive motor; 14. Circular chain plate; 15. Feeding fixture; 16. U-shaped sleeve; 17. Positioning groove; 18. Clamping plate; 19. Telescopic spring; 20. Guide table; 21. Heating chamber; 22. Suction hood; 23. Suction pipe; 24. Heating compression tank; 25. Suction pump; 26. Hot air duct; 27. Die connection port; 30. Push rod motor; 31. Multi-stage push rod; 32. Lower die; 33. Material feeding block; 34. Lower extrusion surface; 40. Side pressure roller; 41. Side pressure corner groove; 42. Wheel axle; 43. Wheel bearing; 44. Torsion spring groove; 45. Torsion spring; 50. Equipment top seat; 51. Back plate; 52. Support column; 53. Stamping cylinder; 54. Stamping rod; 55. Upper extrusion surface; 56. Upper punch head; 57. Receiving... 60. Storage tank; 61. Telescopic column; 62. Support block; 63. Compression spring; 64. Vertical gear; 65. Adjusting gear; 66. Positioning bearing; 67. Adjusting block; 68. Extension arm; 69. Horizontal gear; 70. Anti-slip part; 71. Unloading platform; 72. Sliding channel; 73. Cooling pool; 74. Pre-cooling pipe; 75. Pipe rack; 76. Flushing hole; 77. Connecting pipe; 80. Pumping pipe assembly; 81. Welding piece; 82. Clamping cylinder; 83. Cylinder 90. Rod; 91. Drive base; 92. Displacement arm; 93. Rack; 94. Drive gear; 95. Servo motor; 106. Corrugated telescopic tube; 107. Cleaning frustum; 108. Sealed inner chamber; 109. Rotating roller; 100. Sealed bearing; 101. Large gear; 102. Small gear; 103. Uniform speed motor; 104. Motor base; 115. Air pressure port; 116. Cleaning head; 117. Slag blowing hole; 118. Cleaning bristles; 129. Motor housing. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0025] like Figures 1-11As shown, this embodiment provides an intelligent hot stamping equipment for high-strength sheet metal parts, including an equipment base 1. A stationary mold seat 10 is installed on the upper surface of the equipment base 1. A conveyor 2 is connected to the horizontal right side of the stationary mold seat 10. A feeding belt 3 is provided on the upper surface of the conveyor 2. Baffles 6 are symmetrically installed on the upper surface of the conveyor 2 and on both sides of the feeding belt 3 to limit and block the movement. A set of correction wheels 4 for hot-pressing metal parts 5 is provided at the left end of the conveyor 2, including several sets of correction wheels arranged at an angle.

[0026] Furthermore, two sets of positioning feeders 11 are symmetrically installed on the upper edge of the static mold base 10. The upper surface of each positioning feeder 11 is riveted to the upper surface of the equipment base 1 via an L-shaped connecting arm 12. Figures 1-4 As shown.

[0027] Specifically, each set of positioning feeders 11 includes a drive motor 13, a drive wheel, a driven wheel, a tension wheel, and a ring chain plate 14, such as... Figure 4 As shown.

[0028] In this embodiment, several sets of positioning units are equidistantly distributed on the annular chain plate 14, and each set of positioning units includes several sets of feeding fixtures 15 that are equidistantly arranged.

[0029] The feeding fixture 15 includes a feeding U-shaped sleeve 16, a positioning groove 17, and a clamping plate 18. The feeding U-shaped sleeve 16 is fixed to the outer surface of the annular chain plate 14. The positioning groove 17 is formed outwards inside the feeding U-shaped sleeve 16. A clamping plate 18, acting on the side of the hot-pressed metal part 5, is movably disposed within the positioning groove 17. The contact force between the two is relatively small. The clamping plate 18 is connected to the groove wall of the positioning groove 17 by several sets of telescopic springs 19, giving the clamping plate 18 elasticity. Figure 5 As shown.

[0030] Furthermore, a guide platform 20 is provided on the upper right side of the stationary mold base 10. A heating chamber 21 is provided inside the stationary mold base 10. An air suction hood 22 connected to the heating chamber 21 is installed on the left end face of the stationary mold base 10. An air suction pipe 23 is connected to the outside of the air suction hood 22. Figure 1 , Figure 2 and Figure 6 As shown.

[0031] The equipment base 1 houses a heating compression tank 24. A double-hole connector is located at the right end of the heating compression tank 24. A temperature compensator is installed inside the heating compression tank 24 to appropriately compensate for the temperature of the compressed gas inside the pipe. An air suction pump 25 is installed at the left end of the heating compression tank 24, and an air suction pipe 23 is connected to the air suction pump 25. A hot air pipe 26 connects the right end of the heating compression tank 24 to the right end face of the stationary mold base 10. Figure 1 and Figure 2 As shown.

[0032] Furthermore, a mold connection port 27 communicating with the heating chamber 21 is provided at the middle of the upper end face of the stationary mold base 10. The mold connection port 27 allows the lower die 32 to move through. The bottom of the heating chamber 21 serves as the support surface for the lower die 32, playing a role in bearing pressure and providing support during stamping. Figure 6 As shown.

[0033] The equipment base 1 has a vertically mounted push rod motor 30. The push rod motor 30 extends upwards into the heating chamber 21 and is equipped with multi-stage push rods 31. These multi-stage push rods 31 are connected to the lower end face of the lower die 32. A material-feeding block 33, acting on the hot-pressed metal part 5, is located on the left side of the upper end face of the lower die 32. A lower extrusion surface 34 is located on the right side of the upper end face of the lower die 32. A side pressure roller 40 is installed between the lower extrusion surface 34 and the material-feeding block 33. The lower extrusion surface 34 is lower than the top of the side pressure roller 40. Figure 6 and Figure 7 As shown.

[0034] Specifically, the side pressure roller 40 has a side pressure groove 41 on its surface that interacts with the hot-pressed metal part 5. The bottom of the side pressure groove 41 is arc-shaped. After the side pressure roller 40 rotates, the groove surface of the side pressure groove 41 is flush with the lower extrusion surface 34. Axles 42 are symmetrically installed at both ends of the side pressure roller 40. The axles 42 are connected to the outer wall of the lower die 32 via a bearing 43. A torsion spring groove 44 is provided on the end face of the axle 42. A torsion spring 45, connected to the bearing 43, is installed in the torsion spring groove 44. As the side pressure roller 40 rotates, the torsion spring 45 is twisted, generating torque that can automatically reset the side pressure roller 40. Figure 7 and 8 As shown.

[0035] Furthermore, the equipment base 1 is connected to the equipment top seat 50 via a back plate 51. The equipment top seat 50 and the equipment base 1 are connected at their corners by four sets of support pillars 52. A stamping cylinder 53 is installed in the middle of the interior of the equipment top seat 50. Figure 1 and Figure 2 As shown.

[0036] The stamping cylinder 53 has a stamping rod 54 that extends downward from the lower end face of the equipment top seat 50. The lower end of the stamping rod 54 has an upper punch 56, and the lower end face of the upper punch 56 has an upper extrusion surface 55. Figure 2 and Figure 9 As shown.

[0037] Furthermore, the upper punch 56 has a downward-facing storage groove 57 (the size of the storage groove 57 is negligible compared to the upper extrusion surface 55 and does not affect the actual stamping effect of the upper extrusion surface 55). A telescopic column 60 is movably installed inside the storage groove 57. The upper end of the telescopic column 60 is connected to a support block 61. The top of the support block 61 is connected to the groove wall of the storage groove 57 through a compression spring 62. Figure 9 and Figure 10 As shown.

[0038] The support block 61 has several sets of vertical teeth 63 symmetrically arranged on both sides. Adjusting gears 64, which mesh with the vertical teeth 63, are installed on both sides of the support block 61. The gear shaft of each set of adjusting gears 64 is mounted on a positioning bearing 65, which is installed inside the upper punch head 56. Figure 10 and Figure 11 As shown.

[0039] The upper punch 56 has two symmetrically movable adjusting blocks 66 on its outer sides. Each adjusting block 66 has a certain deformation recovery capability. An extension arm 67 is connected to the end of each adjusting block 66. Parts of the adjusting block 66 and the extension arm 67 are partially positioned inside the upper punch 56. The upper end face of the extension arm 67 has horizontal teeth 68 that interact with the bottom of the adjusting gear 64. The inner side of the adjusting block 66 has an anti-slip part 69 that interacts with the side of the hot-pressed metal part 5. The anti-slip part 69 has anti-slip textures. The slight deformation of the metal part's thickness during stamping can increase the contact force with the anti-slip part 69. Figures 9-11 As shown.

[0040] In this embodiment, the hot-pressed metal part 5, after being heated by high frequency, is transferred to the feeding belt 3 of the conveyor 2, which drives the hot-pressed metal part 5 to move to the left. When it passes the position of the correction wheel group 4, it is guided by several sets of correction wheels and adjusted to a centered position before entering the guide table 20 and stopping. The drive motors 13 of the two sets of positioning feeders 11 are started, and the two sets of ring chain plates 14 move in opposite clockwise directions through transmission. The feeding fixtures 15 in one of the positioning units on the ring chain plate 14 move towards each other, moving sequentially from the right end of the positioning feeder 11 to the straight position. By using the two sets of U-shaped sleeves 16 and the side of the hot-pressed metal part 5 to approach each other, the hot-pressed metal part 5 enters the positioning groove 17 and squeezes the clamping plate 18, forming a clamping operation in opposite directions. The two sets of clamping plates 18 together drive the hot-pressed metal part 5 to move to the left until all the feeding fixtures 15 in the positioning unit together drive the hot-pressed metal part 5 to leave the guide table 20.

[0041] When the hot-pressed metal part 5 moves above the mold connection port 27, the left end of the hot-pressed metal part 5 is blocked by the material feeding block 33 (at this time, part of the lower die 32 extends out of the mold connection port 27), while all the feeding fixtures 15 continue to move to the left, thus forcibly separating the hot-pressed metal part 5 from the positioning unit and falling downward into the lower die 32, achieving the effect of automatic positioning. At this time, the multi-stage push rod 31 drives the lower die 32 downward into the heating chamber 21, and then the stamping cylinder 53 is activated, and the stamping rod 54 moves downward rapidly, driving... The upper punch 56 passes downward through the mold connection port 27 and enters the heating chamber 21, where it closes with the lower die 32. On one hand, the lower extrusion surface 34 and the upper extrusion surface 55 are combined to rigidly stamp the right half of the hot-pressed metal part 5 at high temperature, causing it to undergo plastic deformation and improving its tensile strength. On the other hand, the left half of the hot-pressed metal part 5 is deformed into a right angle by the force rotation of the side pressure roller 40. It is also rigidly squeezed by the groove wall of the side pressure angle groove 41 and the side of the upper punch 56 to obtain the required size and shape, thus completing the stamping operation.

[0042] The moment the upper punch 56 and the hot-pressed metal part 5 on the lower die 32 come into contact, a contact force is generated, causing the telescopic column 60 to be completely pressed back into the receiving groove 57 and aligned with the upper extrusion surface 55. This causes the support block 61 to move upward (compressing the spring 62), thereby causing the two sets of adjusting gears 64 to rotate counterclockwise through the meshing of the vertical teeth 63. While the adjusting gears 64 are rotating, the two sets of adjusting blocks 66 are moved towards each other through the meshing of the horizontal teeth 68. At the same time, the anti-slip part 69 acts on the side of the hot-pressed metal part 5 to limit and dampen it, avoiding the deviation and relative movement caused by the instantaneous force, and improving the stamping accuracy.

[0043] Before the hot-pressed metal parts 5 are stamped, the control valve of the heating compression tank 24 is continuously opened to release the high-temperature hot air in the tank into the heating chamber 21 through the hot air pipe 26. This maintains the high-temperature environment in the heating chamber 21 and prevents the hot-pressed metal parts 5 from cooling down too quickly due to the low ambient temperature, which would affect the stamping effect. At the same time, the suction pump 25 is started to generate suction at the suction hood 22 to absorb the insufficient hot air in the heating chamber 21 (most of the heat lost by the hot-pressed metal parts 5 is also absorbed), forming a thermal cycle. The hot air is injected into the heating compression tank 24 through the suction pipe 23 for temperature compensation, so as to make full use of the residual heat. This cycle continues. Example 2

[0044] Based on Example 1, after the hot-pressed metal part 5 is stamped, the operator needs to use pliers to clamp the workpiece and place it into the cooling tank 72. This is time-consuming and labor-intensive, and the hot-pressed metal part 5 is prone to falling during the clamping process. Furthermore, the surface temperature of the hot-pressed metal part 5 is still above the thermal stress critical point, making it susceptible to deformation due to impacts. To solve these problems, we have the following design, such as... Figures 12-14 As shown.

[0045] Specifically, the feeding fixture 15 also includes a welding piece 80, a clamping cylinder 81, and a cylinder rod 82, such as Figure 13 As shown.

[0046] In this embodiment, the back of the U-shaped sleeve 16 is connected by two sets of welded plates 80 and annular chain plate 14. A clamping cylinder 81 is horizontally installed in the middle of the U-shaped sleeve 16. A cylinder rod 82 is movably arranged horizontally outward inside the clamping cylinder 81. The end of the cylinder rod 82 is fixed to the clamping plate 18. When the feeding fixture 15 moves from the right end of the positioning feeder 11 to the straight position, the cylinder rod 82 drives the clamping plate 18 to move outward. When the left end of the hot-pressed metal part 5 is blocked by the material-pushing block 33, the cylinder rod 82 drives the clamping plate 18 to retract inward.

[0047] Furthermore, a discharge platform 70 is connected to the left end of the stationary mold base 10 and below the two sets of positioning feeders 11. A sliding channel 71 is connected to the left end of the discharge platform 70. A cooling pool 72 is located below the sliding channel 71 and at the left end of the equipment base 1. The cooling pool 72 contains circulating water for rapid cooling. Figure 12 As shown.

[0048] Furthermore, pre-cooling pipes 73 are symmetrically installed on the upper and lower ends of the two sets of positioning feeders 11. Each set of pre-cooling pipes 73 is connected to the positioning feeder 11 via a pipe rack 74, such as... Figure 12 As shown.

[0049] Specifically, the walls of the two sets of pre-cooling pipes 73 are respectively provided with several sets of flushing holes 75 that act on the upper and lower end faces of the hot-pressed metal parts 5. The two sets of pre-cooling pipes 73 are connected by a connecting pipe 76, and a water pumping pipe assembly 77 is connected to the outside of the connecting pipe 76. The lower end of the water pumping pipe assembly 77 extends into the cooling pool 72, and a water pump acting on the water pumping pipe assembly 77 is installed in the cooling pool 72. Figure 12 and Figure 14 As shown.

[0050] In this embodiment, after the hot-pressed metal part 5 is stamped, the multi-stage push rod 31 drives the lower die 32 to extend partially upwards beyond the die connection port 27, making the hot-pressed metal part 5 flush with the annular chain plate 14. Then, the next set of positioning units moves to the top of the die connection port 27. The feeding fixture 15 is distributed on both sides of the hot-pressed metal part 5. At the same time, several sets of clamping cylinders 81 are activated. The cylinder rod 82 drives the clamping plate 18 to extend out of the positioning groove 17 until it contacts the side of the hot-pressed metal part 5, forming a central clamping.

[0051] The lower die 32 is retracted into the heating chamber 21. The positioning unit drives the hot-pressed metal part 5 after molding to continue moving to the left. When it passes between the two sets of pipe racks 74, the water pump is started. The water pumping pipe group 77 draws the circulating water in the cooling pool 72 and injects it into the two sets of pre-cooling pipes 73. It is sprayed out from several sets of flushing holes 75. With the linear movement of the hot-pressed metal part 5, the upper and lower end faces of the hot-pressed metal part 5 are thoroughly flushed and cooled. Then the hot-pressed metal part 5 leaves the pre-cooling pipe 73 until it moves to the left end of the positioning feeder 11. The clamping plate 18 is released in sequence, and the hot-pressed metal part 5 falls onto the unloading table 70 and slides down the sliding channel 71 into the cooling pool 72 for rapid cooling. Example 3

[0052] Based on Example 1, metal slag easily remains on the surface of hot stamping dies. If not cleaned in time, it will form a layer of dust and clumps, resulting in an uneven die surface and affecting subsequent stamping. To solve the above problems, a drive seat 90 is horizontally installed in the middle of the back plate 51. The drive seat 90 has a guide groove that extends outward from its interior, and a displacement arm 91 is movably installed in the guide groove. Figures 15-17 As shown.

[0053] Specifically, racks 92 are equidistantly arranged on the upper end face of the displacement arm 91, and drive gears 93 are meshed on the upper end of the racks 92. The drive gears 93 are sleeved on the output shaft of the servo motor 94. Both the drive gears 93 and the servo motor 94 are located inside the motor housing 120, which is riveted to the upper end face of the drive base 90. Figure 15 and Figure 16 As shown.

[0054] The displacement arm 91 has a corrugated expansion tube 95 extending outward from its interior. The expansion tube 95 can extend and retract with the movement of the displacement arm 91. The expansion tube 95 extends outward and connects to a double-hole connector at the right end of the heated compression tank 24. Figure 16 As shown.

[0055] Furthermore, the end of the displacement arm 91 furthest from the back plate 51 is connected to a cleaning frustum 100. The cleaning frustum 100 has a sealed inner chamber 101 that communicates with the corrugated telescopic tube 95. The sealed inner chamber 101 is in a sealed state. A rotating roller 102 is installed through the middle of the sealed inner chamber 101. The rotating roller 102 and the inner wall of the sealed inner chamber 101 are connected by a sealed bearing 103. Figure 16 and Figure 17 As shown.

[0056] In this design, a large gear 104 is sleeved in the middle of the rotating roller 102, and a small gear 105 is meshed on one side of the large gear 104. The small gear 105 is sleeved on the output shaft of the constant speed motor 106, which is vertically mounted on a motor base 107 located on one side of the cleaning frustum 100. Figure 16 and Figure 17 As shown.

[0057] In this embodiment, the rotating roller 102 has an air pressure port 110 communicating with the sealed inner chamber 101 on its roller surface. Cleaning heads 111 are installed on both the upper and lower end faces of the rotating roller 102. The cleaning heads 111 have evenly distributed slag-blowing holes 112 communicating with the air pressure ports 110. Several sets of cleaning bristles 113 are alternately arranged on the cleaning heads 111 and the slag-blowing holes 112. The cleaning bristles 113 are coated with a high-temperature resistant coating. The cleaning bristles 113 act on the lower extrusion surface 34 and the upper extrusion surface 55 respectively. Figure 16 and Figure 17 As shown.

[0058] In this embodiment, after the hot-pressed metal part 5 is removed, the servo motor 94 is immediately started. The drive gear 93, through meshing with the rack 92, drives the displacement arm 91 to move outward along the guide groove, moving the cleaning disc 100 to the area between the upper punch head 56 and the lower die 32. The height of the two sets of molds is adjusted so that the cleaning bristles 113 contact the lower extrusion surface 34 and the upper extrusion surface 55 respectively. The constant speed motor 106 is started, driving the small gear 105 to rotate, and through meshing, the large gear 104 rotates accordingly. The rotating roller 102 rotates, thereby carrying... The cleaning head 111 has several sets of cleaning bristles 113 that clean the lower extrusion surface 34 and the upper extrusion surface 55 in a timely manner (including the side of the upper punch head 56), achieving automatic cleaning and saving time and effort. At the same time, the control valve on the double-hole connector is opened, allowing the compressed air in the heated compression tank 24 to be injected into the sealed inner chamber 101 through the corrugated telescopic tube 95. Due to the pressure difference, the air flows in from the air pressure port 110 and is then evenly discharged from several sets of slag blowing holes 112, which spray the cleaning bristles 113, the lower extrusion surface 34 and the upper extrusion surface 55 with high pressure, thus helping to improve the cleaning effect.

[0059] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength sheet metal intelligent hot stamping equipment, comprising an equipment base (1), characterized in that: A stationary mold base (10) is installed on the upper surface of the equipment base (1). Two sets of positioning feeders (11) are symmetrically installed on the upper side of the stationary mold base (10). The upper surface of each set of positioning feeders (11) is riveted to the upper surface of the equipment base (1) through an L-shaped connecting arm (12). Each set of positioning feeders (11) includes a drive motor (13), a drive wheel, a driven wheel, a tension wheel, and an annular chain plate (14). Several sets of positioning units are evenly distributed on the annular chain plate (14). Each set of positioning units includes several sets of feeding fixtures (15) that are evenly arranged. A guide platform (20) is provided on the upper right side of the stationary mold base (10). A heating chamber (21) is provided inside the stationary mold base (10). An air suction hood (22) connected to the heating chamber (21) is installed on the left end face of the stationary mold base (10). An air suction pipe (23) is connected to the outside of the air suction hood (22). A heating compression tank (24) is installed inside the equipment base (1). A temperature compensator is provided inside the heating compression tank (24). An air suction pump (25) is installed on the left end of the heating compression tank (24). The air suction pipe (23) is connected to the air suction pump (25). The right end of the heating compression tank (24) and the right end face of the stationary mold base (10) are connected by a hot air pipe (26). The upper end face of the stationary mold base (10) is provided with a mold connection port (27) that communicates with the heating chamber (21). The mold connection port (27) is for the lower die (32) to pass through. The equipment base (1) is vertically installed with a push rod motor (30). The push rod motor (30) extends upward into the heating chamber (21) and is provided with a multi-stage push rod (31). The multi-stage push rod (31) is connected to the lower end face of the lower die (32). The upper end face of the lower die (32) is provided with a material feeding block (33) that acts on the hot-pressed metal part (5) at the left position. The upper end face of the lower die (32) is provided with a lower extrusion surface (34) at the right position. A side pressure roller (40) is installed between the lower extrusion surface (34) and the material feeding block (33).

2. The intelligent hot stamping equipment for high-strength sheet metal parts according to claim 1, characterized in that: The static mold base (10) is connected to a conveyor (2) on the right side. A feeding belt (3) is provided on the upper end face of the conveyor (2). A correction wheel group (4) is provided on the left end of the conveyor (2) to act on the hot-pressed metal part (5). The feeding fixture (15) includes a feeding U-shaped sleeve (16), a positioning groove (17), and a clamping plate (18). The feeding U-shaped sleeve (16) is fixed on the outer surface of the annular chain plate (14). The feeding U-shaped sleeve (16) has a positioning groove (17) opening outward inside. The clamping plate (18) acting on the side of the hot-pressed metal part (5) is movably arranged in the positioning groove (17). The clamping plate (18) is connected to the groove wall of the positioning groove (17) through several sets of telescopic springs (19).

3. The intelligent hot stamping equipment for high-strength sheet metal parts according to claim 1, characterized in that: The side pressure wheel (40) has a side pressure groove (41) that interacts with the hot-pressed metal part (5) on its wheel surface. The two ends of the side pressure wheel (40) are symmetrically mounted with axles (42). The axles (42) are connected to the outer wall of the lower die (32) through a wheel bearing (43). The end face of the axle (42) has a torsion spring groove (44). A torsion spring (45) connected to the wheel bearing (43) is installed in the torsion spring groove (44).

4. The intelligent hot stamping equipment for high-strength sheet metal parts according to claim 1, characterized in that: The equipment base (1) is connected to the equipment top seat (50) via a back plate (51). The equipment top seat (50) and the equipment base (1) are connected at the corners by four sets of support columns (52). A stamping cylinder (53) is installed in the middle of the inside of the equipment top seat (50). A stamping rod (54) is movably arranged inside the stamping cylinder (53) extending downward from the lower end face of the equipment top seat (50). An upper punch head (56) is provided at the lower end of the stamping rod (54). An upper extrusion surface (55) is provided at the lower end face of the upper punch head (56).

5. The intelligent hot stamping equipment for high-strength sheet metal parts according to claim 4, characterized in that: The upper punch (56) has a downward-facing storage groove (57) inside. A telescopic column (60) is movably installed in the storage groove (57). A support block (61) is connected to the upper end of the telescopic column (60). The top of the support block (61) is connected to the groove wall of the storage groove (57) through a compression spring (62). Several sets of vertical teeth (63) are symmetrically arranged on both sides of the support block (61). Adjusting gears that mesh with the vertical teeth (63) are installed on both sides of the support block (61). 64) Adjustment blocks (66) are symmetrically and movably arranged on both outer sides of the upper punch (56). An extension arm (67) is connected to the end of the adjustment block (66). Part of the adjustment block (66) and the extension arm (67) are limited inside the upper punch (56). The upper end face of the extension arm (67) is arranged with horizontal teeth (68) that interact with the bottom of the adjustment gear (64). The inner side of the adjustment block (66) is provided with an anti-slip part (69) that interacts with the side of the hot-pressed metal part (5).

6. The intelligent hot stamping equipment for high-strength sheet metal parts according to claim 2, characterized in that: The feeding fixture (15) also includes a welding plate (80), a clamping cylinder (81) and a cylinder rod (82). The back of the U-shaped sleeve (16) is connected by two sets of welding plates (80) and an annular chain plate (14). The clamping cylinder (81) is horizontally installed in the middle of the U-shaped sleeve (16). The cylinder rod (82) is movably arranged horizontally outward inside the clamping cylinder (81). The end of the cylinder rod (82) is fixed to the clamping plate (18). The left end of the stationary mold base (10) and below the two sets of positioning feeders (11) is connected to a discharge platform (70). The left end of the discharge platform (70) is connected to a sliding channel (71). Below the sliding channel (71) and at the left end of the equipment base (1), a cooling pool (72) is provided. The cooling pool (72) contains circulating water.

7. The intelligent hot stamping equipment for high-strength sheet metal parts according to claim 6, characterized in that: Two sets of positioning feeders (11) are symmetrically equipped with pre-cooling pipes (73) on their upper and lower ends. Each set of pre-cooling pipes (73) is connected to the positioning feeder (11) by a pipe rack (74). Several sets of flushing holes (75) acting on the upper and lower ends of the hot-pressed metal parts (5) are opened on the pipe walls of the two sets of pre-cooling pipes (73). The two sets of pre-cooling pipes (73) are connected by a connecting pipe (76). A water pumping pipe group (77) is connected to the outside of the connecting pipe (76). The lower end of the water pumping pipe group (77) extends into the cooling pool (72).

8. The intelligent hot stamping equipment for high-strength sheet metal parts according to claim 7, characterized in that: A drive seat (90) is horizontally mounted in the middle of the back plate (51). A guide groove is provided inside the drive seat (90) and a displacement arm (91) is movably arranged in the guide groove. A rack (92) is provided at equal intervals on the upper end face of the displacement arm (91). A drive gear (93) is meshed on the upper end of the rack (92). The drive gear (93) is sleeved on the output shaft of the servo motor (94). A corrugated telescopic tube (95) is provided inside the displacement arm (91) and extends outward. The corrugated telescopic tube (95) extends outward and connects to the right end double-hole connector of the heating compression tank (24).

9. The intelligent hot stamping equipment for high-strength sheet metal parts according to claim 4, characterized in that: The end of the displacement arm (91) away from the back plate (51) is connected to a cleaning truncated cone (100). The cleaning truncated cone (100) has a sealed inner chamber (101) that communicates with the corrugated telescopic tube (95). A rotating roller (102) is installed through the middle of the sealed inner chamber (101). The rotating roller (102) and the inner wall of the sealed inner chamber (101) are connected by a sealed bearing (103). A large gear (104) is sleeved in the middle of the rotating roller (102). A small gear (105) is meshed on one side of the large gear (104). The small gear (105) is sleeved on the output shaft of the uniform speed motor (106).

10. The intelligent hot stamping equipment for high-strength sheet metal parts according to claim 9, characterized in that: The rotating roller (102) has an air pressure port (110) that communicates with the sealed inner chamber (101) on its roller surface. The upper and lower end faces of the rotating roller (102) are equipped with cleaning heads (111). The cleaning heads (111) have slag blowing holes (112) that communicate with the air pressure port (110) evenly distributed on them. Several sets of cleaning bristles (113) are arranged alternately on the cleaning heads (111) and the slag blowing holes (112). The cleaning bristles (113) are coated with high temperature resistant coating. The cleaning bristles (113) act on the lower extrusion surface (34) and the upper extrusion surface (55) respectively.

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