A high-strength steel sheet stamping structure for automotive parts and its usage method

Abstract

The present invention discloses a high-strength steel plate stamping structure for automotive parts and its usage method. The present invention relates to the technical field of high-strength steel plate stamping structures, and includes a workbench and a stamping frame body arranged on the workbench. At the central position above the workbench, a lower die is provided. On both sides of the workbench of the lower die, a feeding conveyor belt and a discharging conveyor belt are respectively provided. The stamping frame body is arranged on the workbench through a support frame, and the stamping frame body is arranged directly above the lower die. Below the stamping frame body, an upper die is provided. Below the upper die, a limiting column is provided through a first cylinder. This high-strength steel plate stamping structure for automotive parts and its usage method accurately limit the steel plate through the limiting column and the limiting clamp, facilitate the protection of the steel plate after stamping through the provided die support plate and cooling flap, and realize the uniform cooling operation of the steel plate by setting a cooling mechanism in the cooling support plate, ensuring the quality of the steel plate.

Description

Technical Field

[0001] The present invention relates to a stamping structure of high-strength steel plates, and particularly to a stamping structure of high-strength steel plates for automotive parts and its usage method. Background Art

[0002] Stamping is a forming process that applies external forces to plates, strips, tubes, profiles, etc. by a press and a die, causing plastic deformation or separation to obtain workpieces (stamped parts) with the required shape and size. Stamping and forging belong to plastic processing (or pressure processing) and are collectively called forging and pressing. The blanks for stamping are mainly hot-rolled and cold-rolled steel plates and strips. By means of the power of conventional or special stamping equipment, the sheet metal is directly subjected to deformation force in the die and deformed, so as to obtain a production technology of product parts with a certain shape, size and performance. The sheet metal, the die and the equipment are the three elements of stamping processing. At present, automotive parts are also processed through a stamping device;

[0003] For example, a stamping device for automotive parts and its usage method with the patent application publication number "CN114700431A". It includes a lower die, an upper die, a support frame, a clamping assembly, a bidirectional lead screw, a guide rod a and a mounting cover. A moving drive mechanism is provided on the support frame for driving the upper die to move vertically to or away from the lower die; the lower die is arranged on the mounting cover, and the support frame is arranged on the mounting cover; the bidirectional lead screw and the guide rod a are both horizontally arranged, the bidirectional lead screw is rotationally connected to the mounting cover, the guide rod a is connected to the mounting cover, the bidirectional lead screw has a first thread part and a second thread part with opposite thread directions, both the first thread part and the second thread part are threadedly connected with lead screw nuts, two groups of clamping assemblies are symmetrically arranged, the two groups of clamping assemblies are respectively connected to the two lead screw nuts, and the clamping assemblies are slidably arranged on the guide rod a. The present invention can synchronously clamp the workpiece during stamping to ensure the processing quality.

[0004] However, in the prior art, when stamping high-strength steel plates for automobiles, hot stamping is usually adopted for stamping operations. During hot stamping, the steel plate is heated before stamping. The heated steel plate has better plasticity and is not prone to springback after plasticity. However, some stamping devices usually only have the stamping function. During hot stamping, workers need to use clips to transfer the heated steel plate to the lower die on the stamping device and continuously adjust the position of the steel plate on the upper die so that the steel plate can be located at the center position of the lower die to ensure the accuracy of the stamping position. However, manual adjustment is easy to cause burns and there are many operation steps, increasing the labor of workers. Moreover, after stamping, it also needs to be manually removed and placed in another cooling device for cooling. At this time, the steel plate is directly exposed. Although the hot-processed steel plate is not prone to springback, during transfer or cooling, if there is a large impact, etc., small-scale deformation will still occur, resulting in a decrease in the accuracy of the steel plate. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the technical solution adopted by the present invention to solve its technical problems is: a high-strength steel plate stamping structure for automotive parts, including a workbench and a stamping frame body arranged on the workbench. At the central position above the workbench, a lower die is provided. On the workbench on both sides of the lower die, a feeding conveyor belt and a discharging conveyor belt are respectively provided. The stamping frame body is arranged on the workbench through a support frame. The stamping frame body is arranged directly above the lower die. An upper die is provided below the stamping frame body. A limiting column is provided inside the upper die through a first cylinder at the lower part. A die support plate is placed on the lower die. The steel plate to be stamped is arranged above the die support plate. The die support plate is adapted to the upper part of the upper die. A cooling flap is provided on one side of the die support plate close to the discharging conveyor belt. The cooling flap is snap-fitted with the edge of the die support plate. A cooling mechanism is provided inside the cooling flap. A driving mechanism is provided on the workbench. The cooling flap and the die support plate as a whole are driven to flip by the driving mechanism. A track is provided on the workbench at the edge of the lower die. A limiting clamp is slidably arranged on the track. A plurality of limiting clamps are provided and respectively clamp and limit the four corners of the steel plate arranged on the lower die.

[0006] Preferably, a plurality of tracks are provided. The plurality of tracks are respectively arranged at the corners of the lower die and extend obliquely outward. Adjacent tracks are symmetrically arranged. The limiting clamp is slidably arranged on the corresponding track. The adjacent limiting clamps are linked through a telescopic mechanism. By arranging the tracks at the four corners of the lower die, the movement of the limiting clamp on the track can gradually bring the limiting clamp closer to the corners of the steel plate on the lower die. And by linking the adjacent limiting clamps through a telescopic mechanism, it is convenient to move the plurality of limiting clamps synchronously, so that the positioning operation of the steel plate is more rapid and accurate.

[0007] Preferably, the telescopic mechanism includes a fixed plate, an adjusting plate and a first motor. Two adjusting plates are provided. The fixed plate is of a hollow structure. The two adjusting plates are symmetrically and slidably arranged inside the fixed plate. A gear is rotatably arranged at the central position inside the fixed plate. The inner sides of the two adjusting plates are meshed with the side wall of the gear. The gear is driven by the first motor. The outer end of the adjusting plate is fixedly assembled with the limiting clamp at the corresponding position. By driving the first motor, the gear is driven to rotate, and then the adjusting plates arranged on both sides of the gear are driven to move in the opposite direction simultaneously, and then the adjacent two limiting clamps are driven to move synchronously, and then the limiting clamp is driven to slide on the track.

[0008] Preferably, the limiting clamp includes a connecting rod, a fixed clamp plate and a movable clamp plate, the fixed clamp plate and the movable clamp plate are respectively fixedly and slidably arranged on the connecting rod, the lower end of the connecting rod is slidably assembled with the track, the movable clamp plate is arranged below the fixed clamp plate, and the movable clamp plate is assembled and connected to the fixed clamp plate by a second cylinder. By assembling and connecting the fixed clamp plate and the movable clamp plate by the second cylinder, the limiting operation at the upper and lower positions of the four corners of the steel plate is realized, thereby avoiding the problem of poor limiting effect of the limiting clamp on the steel plate due to the failure to clamp the steel plate.

[0009] Preferably, the limiting column is arranged at the center position below the upper mold, and the upper end of the limiting column is connected to the internal assembly of the upper mold through the first cylinder. When the first cylinder is in a contracted state, the lower side of the limiting column is flush with the lower side of the upper mold, and the side wall of the limiting column is in close contact with the inner wall of the upper mold. By arranging the limiting column below the upper mold, before stamping the steel plate, the four corner edges of the steel plate can be limited by the limiting clamp. At the same time, when the surface of the lower mold is uneven, the center position of the steel plate will be difficult to fit with the lower mold. At this time, the first cylinder can be extended separately, so that the first cylinder drives the limiting column to move downward, so that the lower side of the limiting column is just aligned with the upper side of the lower mold. The surface of the steel plate is fitted to limit the steel plate. At this time, the limit clamp can be withdrawn, and the stamping frame is moved down to drive the upper mold to move down. While the upper mold moves down, the first cylinder contracts at the same speed. When the lower surface of the upper mold is in contact with the surface of the steel plate, the bottom of the limit column is just flush with the lower surface of the upper mold. During stamping, the limit column and the upper mold are an integrated structure. Conversely, after the stamping is completed, the stamping frame can be lifted first, and the first cylinder can be extended, so that during the upward movement of the upper mold, the limit column under the first cylinder can always be against the surface of the steel plate, avoiding the upper mold and the steel plate from being firmly attached during the separation process, resulting in the upper mold moving up to drive the steel plate to separate from the lower mold, thereby causing the steel plate to fall off.

[0010] Preferably, the driving mechanism includes a second motor, a driving shaft and a telescopic rod. A fixed shaft is provided on one side of the mold support plate. One side of the cooling flap is rotatably assembled with the outer side of the fixed shaft. The output end of the second motor is assembled and connected to the driving shaft through a telescopic rod. The second motor is arranged on the workbench. The driving shaft extends into one end of the fixed shaft and is linked to the fixed shaft. The arranged driving mechanism facilitates the steel plate in the cooling flap to be flipped over to the unloading conveyor belt for transfer by rotation.

[0011] Preferably, a clamping strip is provided on the inner wall of one end of the fixed shaft close to the second motor, and a clamping groove for clamping and assembling with the clamping strip is provided on the outer wall of the driving shaft. The driving shaft at one end of the telescopic rod in the retracted state is completely separated from the fixed shaft. Through the clamping fit of the clamping strip and the clamping groove, the stability of the linkage between the driving shaft and the fixed shaft is effectively ensured. Thus, when the second motor drives the telescopic rod and the driving shaft to rotate, the fixed shaft and the mold support plate, the cooling turning plate and the steel plate arranged on the fixed shaft can be driven to perform stable turning operations until the outer side of the cooling turning plate is smoothly placed on the blanking conveyor belt. At this time, the telescopic rod is retracted, so that the driving shaft and the fixed shaft are separated from each other, facilitating the blanking conveyor belt to drive the upper cooling turning plate structure to be transferred to the next processing device.

[0012] Preferably, the area of the mold support plate is larger than that of the steel plate. A clamping groove is provided above the mold support plate, and a clamping block for clamping and assembling with the clamping groove is provided on the inner side of the cooling turning plate. The clamping force between the clamping block and the clamping groove is greater than the gravity of the mold support plate and the steel plate. After the stamping of the steel plate is completed, the staff flips the cooling turning plate so that the cooling turning plate is clamped and assembled on the steel plate and the mold support plate, and is clamped by aligning the clamping block with the clamping groove, enabling the steel plate to be stably placed between the mold support plate and the cooling turning plate, thus facilitating the smooth turning and transferring operation of the steel plate.

[0013] Preferably, the inner side of the cooling turning plate is attached to the upper surface of the stamped steel plate. The cooling mechanism includes a refrigeration device and a heat conduction layer. The cooling turning plate is a hollow structure. The heat conduction layer is provided on the inner wall of the cooling turning plate. The refrigeration device is provided at the central position of the cooling turning plate and the outer wall of the refrigeration device is attached to the heat conduction layer. A plurality of ventilation holes are provided on the cooling turning plate, and the ventilation holes are not communicated with the inside of the cooling turning plate. Through the plurality of ventilation holes provided, heat dissipation is facilitated more quickly. By arranging the refrigeration device inside the cooling turning plate, a refrigeration effect from the inside to the outside can be achieved on the cooling turning plate, and a heat conduction layer is provided on the inner wall of the cooling turning plate, enabling the cold air generated by the refrigeration device to be evenly dissipated outward through the heat conduction layer, thereby achieving a certain degree of uniform refrigeration effect on the steel plate arranged between the cooling turning plate and the mold support plate. Moreover, the cooling turning plate is a sealed and waterproof structure, effectively avoiding damage to the refrigeration device caused by external coolant when the cooling turning plate and the mold support plate containing the steel plate are cooled from the outside as a whole.

[0014] On the other hand, the present invention proposes a usage method for a high-strength steel plate stamping structure for automotive parts, including the following steps:

[0015] Step 1: Clamp and place the mold support plate on the lower mold, and transfer the heated steel plate to the lower mold through the feeding conveyor belt;

[0016] Step 2: Push the four corners of the steel plate with the limit clips to move the steel plate to the central position of the lower die, and drive the limit posts to move down by extending the first cylinder to contact the surface of the steel plate, so as to limit the steel plate.

[0017] Step 3: Stamp the steel plate through the cooperation of the stamping frame and the upper die.

[0018] Step 4: Protect the stamped steel plate with the cooling flap and the die carrier plate, and turn over the cooling flap, the die carrier plate and the steel plate through the drive mechanism to the blanking conveyor belt for transfer.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. In the present invention, by arranging the tracks at the four corners of the lower die, the movement of the limit clips on the tracks can gradually bring the limit clips closer to the corners of the steel plate on the lower die. By linking the adjacent limit clips through the telescopic mechanism, it is convenient to move multiple limit clips synchronously, so that the positioning operation of the steel plate is faster and more accurate, effectively saving the manual limit operation of the staff on the steel plate.

[0021] 2. In the present invention, by arranging the limit posts below the upper die, before stamping the steel plate, the four corners and edges of the steel plate can be limited by the limit clips first. At the same time, when the surface of the lower die is uneven, it is difficult for the central position of the steel plate to fit with the lower die. At this time, the first cylinder can be extended alone, so that the first cylinder drives the limit posts to move down, and then the lower part of the limit posts just fits with the surface of the steel plate arranged on the lower die, so as to limit the steel plate.

[0022] 3. In the present invention, through the cooperation of the cooling flap and the die carrier plate, further limit protection operation is carried out on the stamped steel plate. Although the heated steel plate is difficult to rebound after stamping, there is still a slight possibility of rebound. And during the blanking process before cooling, when the steel plate is subjected to external pressure or collision, the steel plate will deform to a certain extent. In order to ensure the quality of the steel plate, the cooling flap and the die carrier plate are used to limit the steel plate again to make it cool and take shape, so as to ensure the quality of the steel plate. The steel plate transferred away by the blanking conveyor belt can be transferred to an external cooling device for further cooling, ensuring that the steel plate will not deform during the cooling process, thus ensuring the quality of the steel plate.

[0023] 4. The present invention is provided with a plurality of ventilation holes, which facilitates faster heat dissipation. By arranging a refrigeration device inside the cooling flap, the cooling flap can be cooled from the inside outwards. Moreover, a heat conduction layer is provided on the inner wall of the cooling flap, enabling the cold air generated by the refrigeration device to be evenly dissipated outwards through the heat conduction layer. As a result, a certain degree of uniform cooling effect can be achieved on the steel plate disposed between the cooling flap and the mold carrier plate. Additionally, the cooling flap is a sealed and waterproof structure. When the cooling flap containing the steel plate and the mold carrier plate as a whole are cooled from the outside, it effectively prevents external coolant from damaging the refrigeration device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a perspective view of the present invention;

[0025] Figure 2 is a perspective view of the assembly structure of the lower mold, track and limit clamp of the present invention;

[0026] Figure 3 is a perspective view of the assembly of the mold carrier plate and the cooling flap of the present invention;

[0027] Figure 4 is a perspective view of the assembly of the limit clamp and the track of the present invention;

[0028] Figure 5 is a perspective view of the limit clamp of the present invention;

[0029] Figure 6 is a perspective view of the upper mold of the present invention;

[0030] Figure 7 is a perspective view of the telescopic mechanism of the present invention;

[0031] Figure 8 is a perspective view of the driving mechanism of the present invention.

[0032] In the figure: 1, workbench; 2, stamping frame; 3, lower mold; 4, loading conveyor belt; 5, unloading conveyor belt; 6, upper mold; 601, first cylinder; 602, limit post; 701, mold carrier plate; 702, cooling flap; 8, track; 9, limit clamp; 101, fixed plate; 102, adjusting plate; 103, first motor; 104, gear; 111, connecting rod; 112, fixed clamping plate; 113, moving clamping plate; 114, second cylinder; 121, second motor; 122, driving shaft; 123, telescopic rod; 124, fixed shaft; 125, engaging strip; 126, engaging groove; 13, card slot; 14, card block; 151, refrigeration device; 152, heat conduction layer; 153, ventilation hole. DETAILED DESCRIPTION OF THE INVENTION

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations will be obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

[0034] Embodiment 1:

[0035] Please refer to Figure 1 - Figure 8The present invention provides a technical solution: a high-strength steel plate stamping structure for automobile parts, comprising a workbench 1 and a stamping frame 2 arranged on the workbench 1, a lower mold 3 is arranged at the center position above the workbench 1, and a loading conveyor belt 4 and a unloading conveyor belt 5 are respectively arranged on the workbench 1 on both sides of the lower mold 3, the stamping frame 2 is arranged on the workbench 1 through a support frame, the stamping frame 2 is arranged directly above the lower mold 3, an upper mold 6 is arranged below the stamping frame 2, a limiting column 602 is arranged below the inner bottom of the upper mold 6 through a first cylinder 601, a mold support plate 701 is placed on the lower mold 3, a steel plate to be stamped is arranged above the mold support plate 701, the mold support plate 701 is adapted to the upper part of the upper mold 6, and the mold support plate 701 is close to the unloading conveyor belt 5. A cooling flap 702 is provided on one side, and the cooling flap 702 is snap-fitted with the edge of the mold support plate 701. A cooling mechanism is provided in the cooling flap 702, and a driving mechanism is provided on the workbench 1. The cooling flap and the mold support plate 701 are driven to flip as a whole by the driving mechanism. A track 8 is provided on the workbench 1 at the edge of the lower mold 3, and a limit clamp 9 is slidably provided on the track 8. The limit clamp 9 is provided with multiple limit clamps and is respectively clamped and limited with the four corners of the steel plate arranged on the lower mold 3. Before stamping the steel plate, the staff first takes a mold support plate 701 and places it on the lower mold 3, first places the heated steel plate to be stamped on the feeding conveyor belt 4, and moves the steel plate to the mold support plate 701 through the feeding conveyor belt 4. At this time, the steel plate is driven to slide on the track 8. The plurality of limiting clips 9 make the limiting clips 9 approach the four corners of the steel plate until they are against the four corners of the steel plate to ensure that the steel plate is exactly located at the center of the lower mold 3. At this time, the first cylinder 601 is adjusted to make the first cylinder 601 extend, driving the limiting column 602 below the first cylinder 601 to move downward until the bottom of the limiting column 602 fits with the surface of the steel plate set on the lower mold 3. At this time, the limiting clip 9 can be removed, and the steel plate is stably fixed on the lower mold 3 through the limiting column 602. At this time, the stamping frame 2 is moved downward to drive the upper mold 6 to move downward. While the upper mold 6 moves downward, the first cylinder 601 contracts at a uniform speed to drive the limiting column 602 to move upward until the bottom of the upper mold 6 just contacts with the surface of the steel plate, and the limiting column 602 just completely contracts into the upper mold 6. At this time, the stamping frame 2 is regulated to drive the upper mold 6 to stamp downward as a whole, so that the upper mold 6 is engaged with the lower mold 3, so that the steel plate set on the mold support plate 701 is stamped to a bending deformation to achieve the desired effect. At this time, the steel plate is still hot, and the cooling flap 702 on one side of the mold support plate 701 can be turned over to the mold support plate 701 for engagement, so that the stamped steel plate is stably set between the cooling flap 702 and the mold support plate 701. At this time, the cooling flap 702 and the mold support plate 701 are turned over as a whole by the driving mechanism to the unloading conveyor belt 5, which can be unloaded and conveyed. By arranging a cooling mechanism in the cooling flap 702, the steel plate can be cooled after the stamping is completed.Moreover, the cooling flap 702 fits evenly with the surface of the steel plate, resulting in a better cooling effect. Through the cooperation of the cooling flap 702 and the die carrier plate 701, further limiting and protecting operations are carried out on the steel plate after stamping. Although it is difficult for the heated steel plate to rebound after stamping, there is still a slight possibility of rebound. And during the blanking process before cooling, when the steel plate is subjected to external pressure or collision, the steel plate will deform to a certain extent. To ensure the quality of the steel plate, the cooling flap 702 and the die carrier plate 701 are used to re-limit the steel plate to make it cool and take shape, thus ensuring the quality of the steel plate. The steel plate transferred away by the blanking conveyor belt 5 can be transferred to an external cooling device for further cooling, ensuring that the steel plate will not deform during the cooling process, thus ensuring the quality of the steel plate.,

[0036] There are multiple tracks 8, and the multiple tracks 8 are respectively arranged at the corners of the lower die 3 and extend obliquely outward. Adjacent tracks 8 are symmetrically arranged. The limit clips 9 are slidably arranged on the corresponding tracks 8, and adjacent limit clips 9 are linked through a telescopic mechanism. By arranging the tracks 8 at the four corners of the lower die 3, the movement of the limit clips 9 on the tracks 8 can gradually bring the limit clips 9 closer to the corners of the steel plate on the lower die 3. And by linking adjacent limit clips 9 through a telescopic mechanism, it is convenient to move multiple limit clips 9 synchronously, so that the positioning operation of the steel plate is faster and more accurate.

[0037] The telescopic mechanism includes a fixed plate 101, an adjusting plate 102 and a first motor 103. There are two adjusting plates 102. The fixed plate 101 is of a hollow structure. The two adjusting plates 102 are symmetrically and slidably arranged inside the fixed plate 101. A gear 104 is rotatably arranged at the central position inside the fixed plate 101. The inner sides of the two adjusting plates 102 are meshed with the side wall of the gear 104. The gear 104 is driven by the first motor 103. The outer end of the adjusting plate 102 is fixedly assembled with the limit clip 9 at the corresponding position. By driving the first motor 103, the gear 104 is driven to rotate, and then the adjusting plates 102 arranged on both sides of the gear 104 are driven to move in opposite directions simultaneously, and then the adjacent two limit clips 9 are driven to move synchronously, and then the limit clips 9 are driven to slide on the tracks 8.

[0038] The limiting clamp 9 includes a connecting rod 111, a fixed clamp plate 112 and a movable clamp plate 113. The fixed clamp plate 112 and the movable clamp plate 113 are respectively fixedly and slidably arranged on the connecting rod 111. The lower end of the connecting rod 111 is slidably assembled with the track 8. The movable clamp plate 113 is arranged below the fixed clamp plate 112. The movable clamp plate 113 is assembled and connected with the fixed clamp plate 112 through a second cylinder 114. By assembling and connecting the fixed clamp plate 112 and the movable clamp plate 113 through the second cylinder 114, the limiting operation at the upper and lower positions of the four corners of the steel plate is realized, thereby avoiding the problem that the limiting effect of the limiting clamp 9 on the steel plate is poor due to the steel plate not being clamped.

[0039] The limiting column 602 is arranged at the center position below the upper mold 6, and the upper end of the limiting column 602 is connected to the internal assembly of the upper mold 6 through the first cylinder 601. When the first cylinder 601 is in the contracted state, the lower side of the limiting column 602 is flush with the lower side of the upper mold 6, and the side wall of the limiting column 602 is in close contact with the inner wall of the upper mold 6. By arranging the limiting column 602 below the upper mold 6, before stamping the steel plate, the four corner edges of the steel plate can be limited by the limiting clamp 9. At the same time, when the surface of the lower mold 3 is uneven, the center position of the steel plate will be difficult to fit with the lower mold 3. At this time, the first cylinder 601 can be extended separately, so that the first cylinder 601 drives the limiting column 602 to move downward, so that the lower side of the limiting column 602 is just aligned with the surface of the steel plate set on the lower mold 3. The limit clamp 9 can be evacuated at this time, and the stamping frame 2 can be moved downward to drive the upper mold 6 to move downward. When the upper mold 6 moves downward, the first cylinder 601 contracts at the same speed. When the lower surface of the upper mold 6 is in contact with the surface of the steel plate, the lower side of the limit column 602 is just flush with the lower surface of the upper mold 6. During stamping, the limit column 602 and the upper mold 6 are an integrated structure. On the contrary, after the stamping is completed, the stamping frame 2 can be lifted first, and the first cylinder 601 can be extended, so that during the upward movement of the upper mold 6, the limit column 602 below the first cylinder 601 can always be against the surface of the steel plate, so as to avoid the upper mold 6 and the lower mold 3 from being firmly attached to the steel plate during the separation process, resulting in the upper mold 6 moving upward to drive the steel plate to separate from the lower mold 3, thereby causing the steel plate to fall off.

[0040] The driving mechanism includes a second motor 121, a driving shaft 122 and a telescopic rod 123. A fixed shaft 124 is provided on one side of the mold support plate 701. One side of the cooling flap 702 is rotatably assembled with the outer side of the fixed shaft. The output end of the second motor 121 is assembled and connected with the driving shaft 122 through the telescopic rod 123. The second motor 121 is arranged on the workbench 1, and the driving shaft 122 extends to one end of the fixed shaft 124 and is linked with the fixed shaft 124. The driving mechanism is arranged to facilitate the steel plate in the cooling flap 702 to be flipped to the unloading conveyor belt 5 for transfer by rotation.

[0041] On the inner wall of one end of the fixed shaft 124 close to the second motor 121, there is a clamping strip 125. On the outer wall of the driving shaft 122, there is a clamping groove 126 that is clamped and assembled with the clamping strip 125. One end of the driving shaft 122 of the telescopic rod 123 in the contracted state is completely separated from the fixed shaft 124. Through the clamping fit of the clamping strip 125 and the clamping groove 126, the stability of the linkage between the driving shaft 122 and the fixed shaft 124 is effectively ensured. Thus, when the second motor 121 drives the telescopic rod 123 and the driving shaft 122 to rotate, the fixed shaft 124 and the mold support plate 701, the cooling turning plate 702, and the steel plate arranged on the fixed shaft 124 can be driven to perform a stable turning operation until the outer side of the cooling turning plate 702 is smoothly placed on the blanking conveyor belt 5. At this time, the telescopic rod 123 is contracted, so that the driving shaft 122 and the fixed shaft 124 are separated from each other, facilitating the blanking conveyor belt 5 to drive the cooling turning plate 702 structure above to be transferred to the next processing device.

[0042] The area of the mold support plate 701 is larger than the area of the steel plate. There is a clamping groove 13 above the mold support plate 701. On the inner side of the cooling turning plate 702, there is a clamping block 14 that is clamped and assembled with the clamping groove 13. The clamping force between the clamping block 14 and the clamping groove 13 is greater than the gravity of the mold support plate 701 and the steel plate. After the stamping of the steel plate is completed, the staff turns the cooling turning plate 702 so that the cooling turning plate 702 is clamped and assembled on the steel plate and the mold support plate 701, and is clamped by aligning the clamping block 14 with the clamping groove 13, enabling the steel plate to be stably placed between the mold support plate 701 and the cooling turning plate 702, thereby facilitating the smooth turning and transfer operation of the steel plate.

[0043] The inner side of the cooling turning plate 702 is attached to the upper surface of the stamped steel plate. The cooling mechanism includes a refrigeration device 151 and a heat conduction layer 152. The cooling turning plate 702 is a hollow structure. The heat conduction layer 152 is arranged on the inner wall of the cooling turning plate 702. The refrigeration device 151 is arranged at the central position of the cooling turning plate 702 and the outer wall of the refrigeration device 151 is attached to the heat conduction layer 152. There are a plurality of ventilation holes 153 on the cooling turning plate 702, and the ventilation holes 153 are not connected to the inside of the cooling turning plate 702. Through the plurality of ventilation holes 153 provided, it is convenient to dissipate heat more quickly. By arranging the refrigeration device 151 inside the cooling turning plate 702, a refrigeration effect from the inside to the outside can be achieved for the cooling turning plate 702. And there is a heat conduction layer 152 on the inner wall of the cooling turning plate 702, so that the cold air generated by the refrigeration device can be evenly dissipated outward through the heat conduction layer 152, thereby achieving a certain degree of uniform refrigeration effect on the steel plate arranged between the cooling turning plate 702 and the mold support plate 701. And the cooling turning plate 702 is a sealed and waterproof structure. When the cooling turning plate 702 and the mold support plate 701 containing the steel plate are cooled from the outside as a whole, it effectively avoids damage to the refrigeration device 151 caused by external coolant.

[0044] A method for using a high-strength steel plate stamping structure for automotive parts, comprising the following steps:

[0045] Step 1: Clamp and place the die carrier 701 on the lower die 3, and transfer the heated steel plate to the lower die 3 through the loading conveyor belt 4;

[0046] Step 2: Push the four corners of the steel plate through the limit clamp 9 to move the steel plate to the center position of the lower die 3, and drive the limit post 602 to move downward by extending the first cylinder 601 to contact the surface of the steel plate to achieve the limitation of the steel plate;

[0047] Step 3: Stamp the steel plate through the cooperation of the stamping frame 2 and the upper die 6;

[0048] Step 4: Protect the stamped steel plate by the cooling flap 702 and the die carrier 701, and flip the cooling flap 702, the die carrier 701 and the steel plate through the driving mechanism to the unloading conveyor belt 5 for transfer

[0049] When in use, before stamping the steel plate, the staff first takes a mold support plate 701 and places it on the lower mold 3, first places the heated steel plate to be stamped on the feeding conveyor 4, and moves the steel plate to the mold support plate 701 through the feeding conveyor 4. At this time, the multiple limit clamps 9 set on the track 8 are driven to slide, so that the limit clamps 9 are close to the four corners of the steel plate until they are against the four corners of the steel plate to ensure that the steel plate is just located at the center of the lower mold 3. At this time, the first cylinder 601 is adjusted to extend the first cylinder 601, driving the limit column 602 below the first cylinder 601 to move downward until the bottom of the limit column 602 is aligned with the limit column 602 set on the lower mold. The steel plate surface on the mold 3 fits, at this time, the limit clamp 9 can be removed, and the steel plate is stably fixed on the lower mold 3 through the limit column 602. At this time, the stamping frame 2 is moved downward to drive the upper mold 6 to move downward. While the upper mold 6 moves downward, the first cylinder 601 contracts at a uniform speed to drive the limit column 602 to move upward until the bottom of the upper mold 6 just contacts the surface of the steel plate, and the limit column 602 just completely contracts into the upper mold 6. At this time, the stamping frame 2 is adjusted to drive the upper mold 6 to stamp downward as a whole, so that the upper mold 6 is engaged with the lower mold 3, so as to facilitate the stamping of the steel plate set on the mold support plate 701 to the bending deformation to achieve the desired effect. At this time, the steel plate is The old steel plate is hot, and the cooling flap 702 on one side of the mold support plate 701 can be turned over so that the cooling flap 702 is turned over to the mold support plate 701 for engagement, so that the stamped steel plate is stably set between the cooling flap 702 and the mold support plate 701. At this time, the cooling flap 702 and the mold support plate 701 are turned over as a whole by the driving mechanism to the unloading conveyor belt 5, and the unloading conveyor belt 5 can be unloaded and conveyed. By arranging a cooling mechanism in the cooling flap 702, the steel plate after stamping can be cooled, and the cooling flap 702 is evenly fitted with the surface of the steel plate, so that the cooling effect is better. 701 cooperates to achieve further position limiting protection operation on the steel plate after stamping. Although the heated steel plate is difficult to rebound after stamping, there is still a possibility of slight rebound. In addition, the steel plate will be deformed to a certain extent when subjected to external pressure or collision during the unloading process before cooling. In order to ensure the quality of the steel plate, the cooling flap 702 and the mold support plate 701 are used to limit the steel plate again so that it can be cooled and shaped, thereby ensuring the quality of the steel plate. The steel plate transferred by the unloading conveyor belt 5 can be transferred to an external cooling device for further cooling, ensuring that the steel plate will not be deformed during the cooling process, thereby ensuring the quality of the steel plate.

[0050] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art and related fields based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention shall be implemented by conventional means in the art unless otherwise specified and limited.

Claims

1. A high-strength steel plate stamping structure for automotive parts, including a workbench (1) and a stamping frame body (2) arranged on the workbench (1), characterized in that: At the center position above the workbench (1), a lower die (3) is provided. On the workbench (1) on both sides of the lower die (3), a feeding conveyor belt (4) and a discharging conveyor belt (5) are respectively provided. The stamping frame body (2) is arranged on the workbench (1) through a support frame. The stamping frame body (2) is arranged directly above the lower die (3). Below the stamping frame body (2), an upper die (6) is provided. Below the upper die (6), a limit post (602) is provided through a first cylinder (601). On the lower die (3), a die carrier plate (701) is placed. The steel plate to be stamped is arranged above the die carrier plate (701). The die carrier plate (701) is adapted to the lower part of the upper die (6). On one side of the die carrier plate (701) close to the discharging conveyor belt (5), a cooling flap (702) is provided. The cooling flap (702) is snap-fitted with the edge of the die carrier plate (701). A cooling mechanism is arranged inside the cooling flap (702). A driving mechanism is arranged on the workbench (1). The cooling flap and the die carrier plate (701) as a whole are driven and flipped by the driving mechanism. On the workbench (1) at the edge of the lower die (3), a track (8) is provided. A limit clamp (9) is slidably arranged on the track (8). A plurality of limit clamps (9) are provided and respectively clamp and limit the four corners of the steel plate arranged on the lower die (3). The area of the die carrier plate (701) is larger than the area of the steel plate. A clamping groove (13) is provided above the die carrier plate (701). On the inner side surface of the cooling flap (702), a clamping block (14) snap-fitted with the clamping groove (13) is provided. The inner side surface of the cooling flap (702) is attached to the upper surface of the stamped steel plate. The cooling mechanism includes a refrigeration device (151) and a heat conduction layer (152). The cooling flap (702) is of a hollow structure. The heat conduction layer (152) is arranged on the inner wall of the cooling flap (702). The refrigeration device (151) is arranged at the center position of the cooling flap (702) and the outer wall of the refrigeration device (151) is attached to the heat conduction layer (152). A plurality of ventilation holes (153) are provided on the cooling flap (702). The ventilation holes (153) are not communicated with the inside of the cooling flap (702).

2. The high-strength steel plate stamping structure for automotive parts according to claim 1, characterized in that: A plurality of the tracks (8) are provided. The plurality of tracks (8) are respectively arranged at the corners of the lower die (3) and extend obliquely outwards. Adjacent tracks (8) are symmetrically arranged. The limit clamp (9) is slidably arranged on the corresponding track (8). Adjacent limit clamps (9) are linked through a telescopic mechanism.

3. The high-strength steel plate stamping structure for automotive parts according to claim 2, characterized in that: The telescopic mechanism comprises a fixed plate (101), an adjustment plate (102) and a first motor (103); two adjustment plates (102) are provided; the fixed plate (101) is a hollow structure; the two adjustment plates (102) are symmetrically slidably arranged inside the fixed plate (101); a gear (104) is rotatably arranged at a central position inside the fixed plate (101); the inner side surfaces of the two adjustment plates (102) are meshed with the side walls of the gear (104); the gear (104) is driven by the first motor (103); and the outer end of the adjustment plate (102) is fixedly assembled with the limit clamp (9) at a corresponding position.

4. The high-strength steel plate stamping structure for automotive parts according to claim 2, characterized in that: The limit clamp (9) comprises a connecting rod (111), a fixed clamp plate (112) and a movable clamp plate (113); the fixed clamp plate (112) and the movable clamp plate (113) are respectively fixedly and slidably arranged on the connecting rod (111); the lower end of the connecting rod (111) is slidably assembled with the track (8); the movable clamp plate (113) is arranged below the fixed clamp plate (112); and the movable clamp plate (113) and the fixed clamp plate (112) are assembled and connected via a second cylinder (114).

5. The high-strength steel plate stamping structure for automotive parts according to claim 1, characterized in that: The limiting column (602) is arranged at a central position below the upper mold (6); the upper end of the limiting column (602) is connected to the internal assembly of the upper mold (6) through the first cylinder (601); when the first cylinder (601) is in a contracted state, the lower part of the limiting column (602) is flush with the lower part of the upper mold (6); and the side wall of the limiting column (602) is in close contact with the inner wall of the upper mold (6).

6. The high-strength steel plate stamping structure for automotive parts according to claim 1, characterized in that: The driving mechanism comprises a second motor (121), a driving shaft (122) and a telescopic rod (123); a fixed shaft (124) is provided on one side of the mold support plate (701); one side of the cooling flap (702) is rotatably assembled with the outer side of the fixed shaft; an output end of the second motor (121) is assembled and connected with the driving shaft (122) via the telescopic rod (123); the second motor (121) is arranged on the workbench (1); and the driving shaft (122) extends into one end of the fixed shaft (124) and is arranged in linkage with the fixed shaft (124).

7. The high-strength steel plate stamping structure for automotive parts according to claim 6, characterized in that: A snap-fitting strip (125) is provided on the inner wall of one end of the fixed shaft (124) close to the second motor (121), and a snap-fitting groove (126) snap-fitted with the snap-fitting strip (125) is provided on the outer wall of the driving shaft (122); the driving shaft (122) at one end of the telescopic rod (123) in the retracted state is completely separated from the fixed shaft (124).

8. A method for using a high-strength steel plate stamping structure for automotive parts, characterized in that: The high-strength steel plate stamping structure for automobile parts according to any one of claims 1 to 7 is used, comprising the following steps: Step 1: clamping the mold support plate (701) and placing it on the lower mold (3), and transferring the heated steel plate to the lower mold (3) via the loading conveyor belt (4); Step 2: Push the four corners of the steel plate by the limit clamp (9) to move the steel plate to the center position of the lower die (3), and drive the limit post (602) to move down by extending the first cylinder (601) to contact the surface of the steel plate, so as to limit the steel plate; Step 3: Punch the steel plate through the cooperation of the punching frame body (2) and the upper die (6); Step 4: Protect the punched steel plate by the cooling flap (702) and the die carrier plate (701), and turn the cooling flap (702), the die carrier plate (701) and the steel plate over to the blanking conveyor belt (5) for transfer through the driving mechanism.

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