An automatic processing device for chassis sheet metal parts

Abstract

The present invention relates to the field of stamping technology for chassis sheet metal parts, and discloses an automatic processing device for chassis sheet metal parts, including a processing table, a lower die is arranged at the middle position of the upper end surface of the processing table, a sheet metal part is placed in the lower die, displacement grooves are symmetrically opened on both sides of the bottom of the lower die, and a centering aligner acting on the sheet metal part is installed in the displacement groove. The automatic processing device for chassis sheet metal parts described in the present invention starts the servo motor, and after a series of transmissions, the stamping spring is instantly released in the power storage chamber, causing the stamping rod to move downward instantly, and two groups of stamping rods carry the stamping upper die to move downward quickly, pass through the limit opening of the pressing plate, and directly act on the middle part of the sheet metal part, cooperate with the lifting rod to extend downward, drive the lifting seat to move downward a short distance, and use the stamping rod to repeat the above operation again for stamping, and repeat this process until the middle part of the sheet metal part is completely pressed into the concave die groove, and multiple pressings ensure the precision and quality of pressing.

Description

Technical Field

[0001] The invention relates to the technical field of chassis sheet metal stamping, and in particular to an automatic processing device for chassis sheet metal. Background Art

[0002] Sheet metal parts are products processed by sheet metal technology. It is a comprehensive cold processing technology for metal thin plates. Its most notable feature is that the thickness of the same part is consistent. During the processing of sheet metal parts used in chassis, most of them need to go through blanking, stamping, punching, welding, drawing and other processes. Among them, stamping uses stamping dies, and punching equipment is used in the punching process (drilling is suitable for small-batch production of sheet metal parts, and punching equipment is suitable for large-scale production of sheet metal parts).

[0003] The existing chassis sheet metal automatic processing equipment (including stamping and punching) has certain technical defects when in use. First, in the stamping forming process, the sheet metal is generally stamped once by a stamping die. Although this method is fast, the stamping accuracy is reduced and the quality is poor. Excessive pressure also causes great damage to the sheet metal, resulting in a low qualified rate of finished products; second, when the stamping die is used for multiple stampings, the temperature of the die contact surface will rise rapidly, resulting in increased material fatigue and affecting the subsequent stamping effect; third, after the existing sheet metal parts are pressed in the stamping mechanism, they will be transferred to the punching mechanism for hole opening operation. This is time-consuming and labor-intensive, with many transfers, and the extra punching mechanism also increases the cost.

[0004] To sum up, considering that the existing facilities cannot meet the work needs, we propose an automated processing device for chassis sheet metal parts. Summary of the invention

[0005] The main purpose of the present invention is to provide an automatic processing device for chassis sheet metal parts, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A chassis sheet metal automated processing device comprises a processing table, wherein a lower die is arranged in the middle of the upper end surface of the processing table, a sheet metal part is placed in the lower die, displacement grooves are symmetrically opened on both sides of the bottom of the lower die, and a centering aligner acting on the sheet metal part is installed in the displacement groove.

[0008] As a preferred solution of the automatic processing device for chassis sheet metal parts described in the present invention, a die groove is provided at the middle position of the lower die.

[0009] As a preferred solution of the chassis sheet metal automated processing device described in the present invention, wherein: an articulated sleeve is provided at the end of the lower die, a pressing plate is movably provided above the lower die, an articulated shaft acting on the articulated sleeve is installed at the end of the pressing plate, the number of the articulated shafts is 2 groups, a limiting opening is opened in the pressing plate, and pressing grooves are symmetrically provided on both side edges of the limiting opening.

[0010] As a preferred solution of the chassis sheet metal automatic processing device described in the present invention, an automatic water cooler is installed in the pressing groove, and the number of the pressing groove and the automatic water cooler is preferably 4-8 groups.

[0011] As a preferred solution of the chassis sheet metal automated processing device described in the present invention, a top seat is connected to the top of the processing table, a hydraulic cylinder is installed through the middle position of the top seat, a lifting rod is arranged inside the hydraulic cylinder for downward movement, a lifting seat is welded to the lower end of the lifting rod, stop arms are symmetrically arranged on both sides of the top seat extending downward, and a guide groove acting on the lifting seat is opened on the inner side of the stop arm.

[0012] As a preferred solution of the chassis sheet metal parts automated processing device described in the present invention, a stamping shell is installed in the center of the lifting seat and extends downward.

[0013] As a preferred solution of the chassis sheet metal automated processing device described in the present invention, the centering aligner includes a screw shaft, a first bearing seat, a screw motor, a forward spiral pattern and a reverse spiral pattern, the screw shaft is horizontally installed inside the processing table, one end of the screw shaft is fixed by the first bearing seat and the inner wall of the processing table, the other end of the screw shaft is connected to the screw motor through a coupling, the screw motor is installed outward from the inner wall of the processing table, and the screw shaft has forward spiral patterns and reverse spiral patterns symmetrically distributed on it.

[0014] As a preferred solution of the chassis sheet metal automated processing device described in the present invention, the centering aligner also includes a moving seat, a screw nut sleeve, a clamping block, a guide rod and a slide groove, a group of moving seats are installed at the position of the forward spiral pattern and the reverse spiral pattern, a screw nut sleeve acting on the forward spiral pattern or the reverse spiral pattern is installed inside the moving seat, a clamping block acting on the edge of the sheet metal is welded on the upper end surface of each group of the moving seats, and the number of clamping blocks on each group of the moving seats is preferably 2-3 groups, the clamping block moves in a straight line along the displacement groove, and slide grooves are symmetrically opened on the moving seat and on both sides of the screw nut sleeve, the slide groove is for the guide rod to pass horizontally, and the two ends of the guide rod are respectively welded to the inner wall of the processing table, and the number of the guide rods is 2 groups.

[0015] As a preferred solution of the chassis sheet metal automatic processing device described in the present invention, the automatic water cooler includes a water-cooling cylinder, a telescopic rod, an arc head, a sealing port and a water-cooling cavity, a water-cooling cavity is provided in the middle position of the interior of the water-cooling cylinder, a sealing port is provided in the middle position of the upper end surface of the water-cooling cylinder, a telescopic rod is provided in the interior of the water-cooling cavity and passes through the sealing port upward, and an arc head is provided at the upper end of the telescopic rod.

[0016] As a preferred solution of the automatic processing device for chassis sheet metal parts described in the present invention, the automatic water cooler also includes a slide, a compression spring, a drain outlet, a nozzle and a water inlet pipe, the slide is fixed to the lower end of the telescopic rod, the slide is in contact with the inner wall of the water-cooling chamber, the slide and the bottom of the water-cooling chamber are connected by a compression spring, a drain outlet is opened on the wall of the water-cooling chamber, a nozzle is installed at the drain outlet, the nozzle is inclined upward and extends to the inner side of the limit port, a water inlet pipe is installed on the wall of the water-cooling chamber away from the drain outlet, a one-way valve is installed in the water inlet pipe, and a water storage tank is installed at the upper end of the water inlet pipe and located inside the pressure plate.

[0017] As a preferred solution of the chassis sheet metal automated processing device described in the present invention, a roller is horizontally installed inside the stamping shell, large bearing seats are symmetrically arranged at both ends of the roller, the large bearing seats are fixed to the inner wall of the stamping shell, a large gear is sleeved on the middle part of the roller, a small gear is meshed at the lower end of the large gear, the small gear is sleeved on the output shaft of the servo motor, and the servo motor is installed inside the stamping shell.

[0018] As a preferred solution of the automatic processing device for chassis sheet metal parts described in the present invention, the roller is extended out of the large bearing seat and is installed with a shaft portion, a turntable is sleeved on the shaft portion, two groups of push blocks are symmetrically welded on the upper edge of the turntable, an outer bearing is fixed to the outer side surface of the large bearing seat, a crank disk located on the outer side of the shaft portion is sleeved on the inner side of the outer bearing, a crank rod is welded to the outer side of the crank disk, a driving column that acts on the push block is welded to the middle part of the crank rod, a second bearing seat is provided at the end of the crank rod, a rotating column is installed in the second bearing seat, and the rotating column is fixed to the upper end of the connecting rod.

[0019] As a preferred solution of the chassis sheet metal automated processing device described in the present invention, wherein: the lower end of the connecting rod is provided with a hinged sleeve, a connecting head is hinged in the hinged sleeve, the connecting head is fixed at the upper end of the stamping rod, the two groups of the stamping rods respectively pass downward through the positioning cylinders, the positioning cylinders are fixed at the bottom of the stamping shell, and the middle positions of the upper and lower ends of the positioning cylinders are provided with rod grooves for the movement of the stamping rods.

[0020] As a preferred solution of the chassis sheet metal automated processing device described in the present invention, the interior of the positioning cylinder is provided with a force storage chamber, the stamping rod is sleeved with a spring seat which is in contact with the wall of the force storage chamber, a stamping spring sleeved on the outside of the stamping rod is arranged between the spring seat and the positioning cylinder, a stamping upper die is welded to the bottom of the two groups of stamping rods, the stamping upper die passes downward through the limit opening to act on the sheet metal, and pressure blocks acting on the pressing groove are symmetrically arranged on the edge of the upper end surface of the stamping upper die.

[0021] As a preferred solution of the chassis sheet metal automated processing device described in the present invention, wherein: the lower end of the lifting seat is symmetrically equipped with pressure plates on both sides of the stamping shell, each group of the pressure plates is vertically welded with punching rods, the number of the punching rods is preferably 2-8 groups, the lower end of the punching rod is provided with a pointed portion, a reserved opening for the punching rod to pass through is opened on the pressing plate, and a buffer groove acting on the punching rod is provided at the bottom of the lower die.

[0022] As a preferred solution of the automatic processing device for chassis sheet metal parts described in the present invention, legs are welded at the four corners of the bottom of the processing table, and the number of the legs is 4 groups.

[0023] As a preferred solution of the automatic processing device for chassis sheet metal parts described in the present invention, the pressing plate is flipped around the hinge sleeve.

[0024] As a preferred solution of the chassis sheet metal automatic processing device described in the present invention, wherein: the nozzle is aimed at the lower end surface of the stamping upper die to spray cooling water.

[0025] As a preferred solution of the chassis sheet metal automatic processing device described in the present invention, cooling water is stored in the water storage tank.

[0026] As a preferred solution of the automatic processing device for chassis sheet metal parts described in the present invention, the pressing block is in contact with the arc head on the telescopic rod.

[0027] The present invention provides an automatic processing device for chassis sheet metal parts through improvement, which has the following significant improvements and advantages compared with the prior art:

[0028] A centering aligner is designed, and the screw motor is started to drive the screw shaft to rotate at a uniform speed, so that the two sets of moving seats at the positions of the positive spiral pattern and the reverse spiral pattern move toward each other until the clamping block contacts the edge surface of the sheet metal. The clamping blocks in two directions clamp toward each other synchronously. On the one hand, the sheet metal is centered and the pressing area is determined to facilitate centering with the limit opening. On the other hand, a force is provided to limit the sheet metal to prevent it from being displaced during multiple pressing processes.

[0029] Start the servo motor, and after a series of transmissions, the stamping spring is instantly released in the force storage chamber, causing the stamping rod to move downward instantly. The two sets of stamping rods carry the stamping upper die to move downward quickly, pass through the limit opening of the pressing plate, and directly act on the middle part of the sheet metal, pressing part of it into the die groove, and then cooperate with the lifting rod to extend downward, driving the lifting seat to move downward a short distance, and use the stamping rod to repeat the above operation for stamping again, and so on, until the middle part of the sheet metal is completely pressed into the die groove. Multiple pressing ensures the accuracy and quality of pressing, and controls the weakening of the pressing force to reduce the damage to the sheet metal.

[0030] When the stamping upper die moves downward, the pressing block will enter the corresponding pressing groove, and then contact the arc head on the telescopic rod, squeezing the telescopic rod downward, causing the slide to move downward in the water-cooling chamber, allowing the cooling water in the water tank to flow into the water-cooling chamber through the water inlet pipe. At this time, when the stamping upper die is returning, the pressing block and the arc head are separated, and the compression spring drives the slide to return upward, causing the slide to squeeze the cooling water just injected into the water-cooling chamber. The cooling water is sprayed out from the nozzle and sprayed onto the lower end face of the stamping upper die that is returning. Several groups of nozzles spray cooling water at the same time to fully cover the lower end face of the stamping upper die, thereby achieving the effect of timely cooling and heat dissipation and improving the stamping quality.

[0031] The lifting seat is adjusted to the highest position by raising the lifting rod, and then the hydraulic cylinder is started. The lifting rod is extended downward quickly, driving the lifting seat to move downward a long distance, so that several groups of punching rods pass through the reserved openings and synchronously punch holes on the edge of the sheet metal. Punching is performed with the help of the hydraulic equipment in the stamping mechanism, sharing a common power source and without transportation, which reduces the structural complexity and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of an automatic processing device for chassis sheet metal parts of the present invention;

[0033] Figure 2 It is a schematic diagram of the specific structure of the lower mold of the present invention;

[0034] Figure 3 It is a schematic diagram of the relative positions of the centering aligner and the pressing plate of the present invention;

[0035] Figure 4 It is a schematic diagram of the specific structure of the centering aligner of the present invention;

[0036] Figure 5 It is a schematic diagram of the specific structure of the pressing plate of the present invention;

[0037] Figure 6 It is a schematic diagram of the external structure of the automatic water cooler of the present invention;

[0038] Figure 7is a cross-sectional view of the automatic water cooler of the present invention;

[0039] Figure 8 It is a connection diagram of the lifting seat of the present invention;

[0040] Fig. 9 It is a schematic diagram of the internal structure of the stamping housing of the present invention;

[0041] Fig.10 It is a schematic diagram of the transmission structure of the punching rod of the present invention;

[0042] Fig.11 is a cross-sectional view of the positioning tube of the present invention;

[0043] Fig.12 It is a schematic structural diagram of the punching rod of the present invention.

[0044] In the figure: 1, processing table; 2, lower die; 3, die groove; 4, hinge sleeve; 5, pressing plate; 7, centering aligner; 70, screw shaft; 71, first bearing seat; 72, screw motor; 73, positive spiral pattern; 74, reverse spiral pattern; 75, moving seat; 76, screw nut sleeve; 77, clamping block; 78, guide rod; 79, slide; 8, automatic water cooler; 80, water cooling cylinder; 81, telescopic rod; 82, arc head; 83, sealing port; 84, water cooling chamber; 85, slide; 86, compression spring; 87, drain outlet; 88, nozzle; 89, water inlet pipe; 10, sheet metal; 11, hinge shaft; 12, limit port; 13, pressing groove; 20, top seat; 21, hydraulic cylinder; 22, lifting rod; 23, lifting Lowering seat; 24, stop arm; 25, guide groove; 26, stamping shell; 27, stamping upper die; 28, pressure block; 30, roller; 31, large gear; 32, small gear; 33, servo motor; 34, large bearing seat; 40, shaft; 41, turntable; 42, push block; 43, outer bearing; 44, crank plate; 45, crank rod; 46, driving column; 47, second bearing seat; 48, connecting rod; 49, rotating column; 50, hinged seat; 51, stamping rod; 52, connecting head; 53, positioning cylinder; 54, rod groove; 55, storage chamber; 56, spring seat; 57, stamping spring; 60, pressure plate; 61, punching rod; 62, tip; 63, reserved opening; 66, displacement groove; 67, support leg; 68, water tank. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] Embodiment 1, as Figure 1-11 As shown, this embodiment provides an automated processing device for chassis sheet metal parts, including a processing table 1, with legs 67 welded at the four corners of the bottom of the processing table 1 to play a supporting role, a lower mold 2 is arranged in the middle position of the upper end surface of the processing table 1, a sheet metal part 10 is placed in the lower mold 2, a die groove 3 is opened in the middle position of the lower mold 2, and displacement grooves 66 are symmetrically opened on both sides of the bottom of the lower mold 2 to play a limiting guiding role, and a centering aligner 7 acting on the sheet metal part 10 is installed in the displacement groove 66.

[0047] Specifically, the centering aligner 7 includes a screw shaft 70, a first bearing seat 71, a screw motor 72, a positive spiral pattern 73 and a reverse spiral pattern 74, as shown in FIG. Figure 4 shown.

[0048] In this embodiment, the screw shaft 70 is horizontally installed inside the processing table 1, one end of the screw shaft 70 is fixed by the first bearing seat 71 and the inner wall of the processing table 1, and the other end of the screw shaft 70 is connected to the screw motor 72 through a coupling. The screw motor 72 is installed outward from the inner wall of the processing table 1, and the screw shaft 70 is symmetrically distributed with positive spiral patterns 73 and reverse spiral patterns 74.

[0049] Furthermore, the centering aligner 7 also includes a moving seat 75, a screw nut sleeve 76, a clamping block 77, a guide rod 78 and a slide groove 79, as shown in FIG. Figure 4 shown.

[0050] In this embodiment, a group of movable seats 75 are installed at the positions of the forward spiral patterns 73 and the reverse spiral patterns 74. A screw nut sleeve 76 acting on the forward spiral patterns 73 or the reverse spiral patterns 74 is installed inside the movable seats 75. The screw nut sleeve 76 has a nut with spiral motion built in. A clamping block 77 acting on the edge of the sheet metal part 10 is welded to the upper end surface of each group of movable seats 75. The clamping block 77 moves in a straight line along the displacement groove 66.

[0051] In this embodiment, slide grooves 79 are symmetrically provided on the movable seat 75 and on both sides of the screw nut sleeve 76. The slide grooves 79 allow the guide rod 78 to pass horizontally and play a guiding and limiting role. The two ends of the guide rod 78 are respectively welded to the inner wall of the processing table 1 to play a connecting and fixing role.

[0052] Further, the end of the lower die 2 is provided with an articulated sleeve 4, and a pressing plate 5 is movably provided above the lower die 2. The end of the pressing plate 5 is provided with an articulated shaft 11 acting on the articulated sleeve 4. The pressing plate 5 is turned around the articulated sleeve 4. The two sides of the limit opening 12 are symmetrically provided with pressing grooves 13, and an automatic water cooler 8 is installed in the pressing groove 13. Figure 2 and 5 shown.

[0053] Specifically, the automatic water cooler 8 includes a water cooling cylinder 80, a telescopic rod 81, an arc head 82, a sealing port 83 and a water cooling chamber 84. Figure 6 and 7 shown.

[0054] In this embodiment, a water-cooling chamber 84 is opened in the middle position of the interior of the water-cooling cylinder 80, and a sealing opening 83 is opened in the middle position of the upper end surface of the water-cooling cylinder 80 to play a sealing and waterproof role. A telescopic rod 81 is arranged inside the water-cooling chamber 84 and passes through the sealing opening 83 upward. An arc head 82 is arranged at the upper end of the telescopic rod 81, and the arc head 82 extends into the interior of the pressing groove 13.

[0055] Furthermore, the automatic water cooler 8 also includes a slide 85, a compression spring 86, a drain port 87, a nozzle 88 and a water inlet pipe 89. Figure 6 and 7 shown.

[0056] In this embodiment, a slide 85 is fixed to the lower end of the telescopic rod 81. The slide 85 and the inner wall of the water-cooling chamber 84 are in contact with each other all around, which has the function of sealing and waterproofing. The slide 85 and the bottom of the water-cooling chamber 84 are connected by a compression spring 86. A drain port 87 is provided on the wall of the water-cooling chamber 84. A nozzle 88 is installed at the drain port 87. The nozzle 88 is tilted upward and extends into the inner side of the limit port 12. The nozzle 88 is aimed at the lower end surface of the stamping upper die 27 to spray cooling water.

[0057] In this embodiment, a water inlet pipe 89 is installed on the wall of the water-cooling chamber 84 at one end away from the drain outlet 87. When the slide 85 is at the highest position, the pipe mouth of the water inlet pipe 89 and the drain outlet 87 are blocked. A one-way valve is installed in the water inlet pipe 89 to allow the liquid to flow in one direction. A water storage tank 68 is installed at the upper end of the water inlet pipe 89 and inside the pressing plate 5. Cooling water is stored in the water storage tank 68, and water can be added regularly.

[0058] Furthermore, a top seat 20 is connected to the top of the processing table 1, and a hydraulic cylinder 21 is installed in the middle of the top seat 20. A lifting rod 22 is arranged inside the hydraulic cylinder 21 to move downward, and a lifting seat 23 is welded to the lower end of the lifting rod 22. Figure 1 and 8 shown.

[0059] Furthermore, the top seat 20 has two sides extending downwardly and symmetrically provided with stop arms 24, and the inner side of the stop arms 24 is provided with guide grooves 25 acting on the lifting seat 23, which play a role of limiting and guiding, and improve the stability of the movement of the lifting seat 23. The lifting seat 23 has a stamping shell 26 extending downwardly in the center, which plays a role of bearing and protecting the internal structure. Figure 8 shown.

[0060] A roller 30 is horizontally installed inside the stamping shell 26, and large bearing seats 34 are symmetrically arranged at both ends of the roller 30. The large bearing seats 34 are fixed to the inner wall of the stamping shell 26. Fig. 9 shown.

[0061] The middle part of the rotating roller 30 is sleeved with a large gear 31, and the lower end of the large gear 31 is meshed with a small gear 32, which is sleeved on the output shaft of a servo motor 33. The servo motor 33 is installed inside the stamping housing 26, and the servo motor 33 works intermittently, such as Fig. 9 shown.

[0062] Specifically, the roller 30 extends out of the large bearing seat 34 and is provided with a shaft 40, a rotating disc 41 is sleeved on the shaft 40, and two sets of push blocks 42 are symmetrically welded on the upper edge of the rotating disc 41, such as Fig.10 shown.

[0063] An outer bearing 43 is fixed to the outer side of the large bearing seat 34, a crank plate 44 located outside the shaft 40 is sleeved on the inner side of the outer bearing 43, the crank plate 44 rotates around the outer bearing 43, a crank rod 45 is welded to the outer side of the crank plate 44, and a driving column 46 that interacts with the push block 42 is welded to the middle of the crank rod 45 (the push block 42 and the driving column 46 are initially located in the motion area between the top and bottom of the crank plate 44). Fig.10 shown.

[0064] The end of the crank rod 45 is provided with a second bearing seat 47, a rotating column 49 is installed in the second bearing seat 47, the rotating column 49 is fixed to the upper end of the connecting rod 48, and the lower end of the connecting rod 48 is provided with an articulated seat 50, and a connecting head 52 is hinged in the articulated seat 50, such as Fig.10 and 11 shown.

[0065] The connector 52 is fixed to the upper end of the punching rod 51. The two sets of punching rods 51 respectively pass through the positioning tubes 53 downward. The positioning tubes 53 are fixed to the bottom of the punching shell 26. The middle positions of the upper and lower ends of the positioning tubes 53 are provided with rod grooves 54 for the movement of the punching rods 51, which play a role of limiting and guiding. Fig.11 shown.

[0066] Specifically, a force storage chamber 55 is provided inside the positioning cylinder 53, a spring seat 56 which is sleeved on the punching rod 51 and is in contact with the wall of the force storage chamber 55, and a punching spring 57 which is sleeved on the outside of the punching rod 51 is fixedly provided between the spring seat 56 and the positioning cylinder 53. Fig.11 shown.

[0067] Furthermore, a stamping upper die 27 is welded to the bottom of the two sets of stamping rods 51. The stamping upper die 27 passes downward through the limit opening 12 to act on the sheet metal part 10. The stamping upper die 27 and the limit opening 12 are matched in shape and size. A pressing block 28 acting on the pressing groove 13 is symmetrically arranged at the edge of the upper end surface of the stamping upper die 27. The pressing block 28 is in contact with the arc head 82 on the telescopic rod 81. Figure 8 shown.

[0068] When the present embodiment is in use, the pressing plate 5 is first flipped open, the sheet metal part 10 is placed into the lower die 2, the inner side edge of the sheet metal part 10 is horizontally pressed against the inner side surface of the lower die 2, and then the screw motor 72 is started to drive the screw shaft 70 to rotate at a constant speed, so that the two groups of moving seats 75 at the positions of the positive spiral pattern 73 and the reverse spiral pattern 74 move toward each other, and the clamping block 77 moves linearly along the corresponding displacement groove 66 until the clamping block 77 contacts the edge surface of the sheet metal part 10, and the clamping blocks 77 in two directions clamp toward each other synchronously, so that the sheet metal part 10 is in a centered state (the middle of the sheet metal part 10 is aligned with the die groove 3), and then the pressing plate 5 is closed.

[0069] Then the servo motor 33 is started to drive the small gear 32 to rotate, and after meshing and decelerating with the large gear 31, the large gear 31 on the roller 30 is decelerated and rotated, and the two sets of shafts 40 are driven to rotate one circle. When each set of shafts 40 rotates, the turntable 41 moves along, causing the push block 42 to make a circular motion. When one set of push blocks 42 contacts the drive column 46, it pushes the drive column 46 to make a circular motion, so that the crank plate 44 rotates around the outer bearing 43. In the process of the crank rod 45 moving in an arc from bottom to top, with the help of the movement of the connecting rod 48, the punching rod 51 moves upward first, causing the punching spring 57 in the force storage chamber 55 to be compressed first and continuously store force. When the push block 42 pushes the drive column 46 to pass the top of the crank plate 44, the drive column 46 loses its restraint and no longer pulls the punching rod 51 through the transmission. At this time, the punching spring 5 7 is released instantly in the force storage chamber 55, causing the punching rod 51 to move downward instantly. The two sets of punching rods 51 carry the punching upper die 27 and move downward quickly, passing through the limit opening 12 of the pressing plate 5, and directly acting on the middle part (the area to be pressed) of the sheet metal part 10, pressing part of it into the die groove 3, and then the punching rod 51 and the punching upper die 27 return to their original positions (since the four edges will be slightly retracted inward during the deformation of the sheet metal part 10, the clamping block 77 continues to move and maintains the clamping state of the sheet metal part 10 by rotating the screw shaft 70), and then the hydraulic cylinder 21 is started, the lifting rod 22 extends downward, driving the lifting seat 23 to move downward a short distance (controlled within 5 mm each time), and the punching rod 51 is used again to repeat the above operation for punching, and this is repeated until the middle part of the sheet metal part 10 is completely pressed into the die groove 3.

[0070] As the position of the lifting seat 23 is adjusted, the lowest position of the stamping upper die 27 will be continuously lowered. At this time, when the stamping upper die 27 moves downward, the pressing block 28 will enter the corresponding pressing groove 13, and then contact the arc head 82 on the telescopic rod 81, pressing the telescopic rod 81 downward, so that the slide 85 moves downward in the water cooling chamber 84 (the compression spring 86 is compressed), exposing the previously sealed inlet of the water inlet pipe 89, allowing the cooling water in the water storage tank 68 to flow into the In the water-cooling chamber 84, when the stamping upper die 27 is returning, the pressing block 28 and the arc head 82 are separated, and the compression spring 86 drives the slide 85 to return upward, so that the slide 85 squeezes the cooling water just injected into the water-cooling chamber 84, and the cooling water is continuously discharged outward from the drain port 87 and sprayed from the nozzle 88 to the lower end face of the stamping upper die 27 that is returning. Several groups of nozzles 88 spray cooling water at the same time to fully cover and cool down the lower end face of the stamping upper die 27.

[0071] Embodiment 2, based on embodiment 1, after the existing sheet metal parts are pressed in the stamping mechanism, they will be transferred to the punching mechanism for drilling operations. This is time-consuming and labor-intensive, and the extra punching mechanism also increases the cost. In order to solve the above technical problems, we have the following design, such as Fig.12 shown.

[0072] Specifically, the lower end of the lifting seat 23 is symmetrically provided with pressure plates 60 on both sides of the stamping shell 26 to bear pressure. A punching rod 61 is vertically welded on each set of pressure plates 60. The punching rod 61 is made of an alloy material with a structural strength far greater than that of the sheet metal. A tip 62 is provided at the lower end of the punching rod 61. The tip 62 is sharp. A reserved opening 63 for the punching rod 61 to pass through is provided on the pressing plate 5 to play a limiting and guiding role. Fig.12 shown.

[0073] Furthermore, a buffer groove is provided at the bottom of the lower die 2 to act on the punching rod 61, so as to buffer and collect waste materials.

[0074] When this embodiment is in use, after the sheet metal part 10 is pressed, the lifting rod 22 is raised to adjust the lifting seat 23 to the highest position, and then the hydraulic cylinder 21 is started, and the lifting rod 22 is quickly extended downward, driving the lifting seat 23 to move downward a long distance, so that several groups of punching rods 61 pass through the reserved opening 63, and the edge position of the sheet metal part 10 is punched synchronously.

[0075] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0076] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated processing device for chassis sheet metal parts, comprising a processing table (1), characterized in that: A lower die (2) is arranged at the middle position of the upper end surface of the processing table (1), a sheet metal part (10) is placed in the lower die (2), displacement grooves (66) are symmetrically provided on both sides of the bottom of the lower die (2), a centering aligner (7) acting on the sheet metal part (10) is installed in the displacement groove (66), and a concave die groove (3) is provided at the middle position of the lower die (2); The end of the lower die (2) is provided with an articulated sleeve (4), a pressing plate (5) is movably provided above the lower die (2), a hinge shaft (11) acting on the articulated sleeve (4) is installed at the end of the pressing plate (5), a limiting opening (12) is provided in the pressing plate (5), and pressing grooves (13) are symmetrically provided at both sides of the limiting opening (12), and an automatic water cooler (8) is installed in the pressing groove (13); A top seat (20) is connected to the top of the processing table (1), a hydraulic cylinder (21) is installed in the middle of the top seat (20), a lifting rod (22) is movably arranged inside the hydraulic cylinder (21) to move downward, a lifting seat (23) is welded to the lower end of the lifting rod (22), stop arms (24) are symmetrically arranged on both sides of the top seat (20) to extend downward, a guide groove (25) is provided on the inner side of the stop arm (24) to act on the lifting seat (23), and a stamping shell (26) is installed in the center of the lifting seat (23) to extend downward; A roller (30) is horizontally mounted inside the stamping housing (26), large bearing seats (34) are symmetrically arranged at both ends of the roller (30), the large bearing seats (34) are fixed to the inner wall of the stamping housing (26), a large gear (31) is sleeved on the middle of the roller (30), a small gear (32) is meshed at the lower end of the large gear (31), the small gear (32) is sleeved on the output shaft of a servo motor (33), and the servo motor (33) is mounted inside the stamping housing (26); The roller (30) extends out of the large bearing seat (34) and is provided with a shaft (40) on the outside thereof. A rotating disk (41) is sleeved on the shaft (40). Two groups of push blocks (42) are symmetrically welded to the upper edge of the rotating disk (41). An outer bearing (43) is fixed to the outer side surface of the large bearing seat (34). A crank plate (44) located on the outer side of the shaft (40) is sleeved on the inner side of the outer bearing (43). A crank rod (45) is welded to the outer side of the crank plate (44). A driving column (46) that interacts with the push block (42) is welded to the middle of the crank rod (45). A second bearing seat (47) is provided at the end of the crank rod (45). A rotating column (49) is installed in the second bearing seat (47). The rotating column (49) is fixed to the upper end of the connecting rod (48). The lower end of the connecting rod (48) is provided with an articulated seat (50), a connecting head (52) is hinged inside the articulated seat (50), the connecting head (52) is fixed to the upper end of the punching rod (51), the two groups of punching rods (51) respectively pass downward through positioning cylinders (53), the positioning cylinders (53) are fixed to the bottom of the punching shell (26), and the middle positions of the upper and lower ends of the positioning cylinders (53) are provided with rod grooves (54) for the punching rods (51) to move; A force storage chamber (55) is provided inside the positioning cylinder (53); a spring seat (56) is sleeved on the punching rod (51) and is in contact with the wall of the force storage chamber (55); a punching spring (57) is sleeved on the outside of the punching rod (51) and is provided between the spring seat (56) and the positioning cylinder (53); a punching upper die (27) is welded to the bottom of the two groups of punching rods (51); the punching upper die (27) passes downward through the limiting opening (12) and acts on the sheet metal part (10); and a pressure block (28) is symmetrically provided at the edge of the upper end surface of the punching upper die (27) and acts on the pressing groove (13).

2. The automatic processing device for chassis sheet metal parts according to claim 1, characterized in that: The centering aligner (7) comprises a screw shaft (70), a first bearing seat (71), a screw motor (72), a forward spiral pattern (73) and a reverse spiral pattern (74); the screw shaft (70) is horizontally mounted inside the processing table (1); one end of the screw shaft (70) is fixed via the first bearing seat (71) and the inner wall of the processing table (1); the other end of the screw shaft (70) is connected to the screw motor (72) via a coupling; the screw motor (72) is mounted at an outward position of the inner wall of the processing table (1); and the forward spiral pattern (73) and the reverse spiral pattern (74) are symmetrically distributed on the screw shaft (70).

3. The automatic processing device for chassis sheet metal parts according to claim 2, characterized in that: The centering aligner (7) further comprises a movable seat (75), a screw nut sleeve (76), a clamping block (77), a guide rod (78) and a slide groove (79). A group of movable seats (75) are installed at the positions of the positive spiral pattern (73) and the reverse spiral pattern (74). A screw nut sleeve (76) acting on the positive spiral pattern (73) or the reverse spiral pattern (74) is installed inside the movable seat (75). A clamping block (77) acting on the edge of the sheet metal part (10) is welded to the upper end surface of each group of movable seats (75). The clamping block (77) moves linearly along the displacement groove (66). Slide grooves (79) are symmetrically provided on the movable seat (75) and located on both sides of the screw nut sleeve (76). The slide grooves (79) allow the guide rod (78) to pass horizontally. The two ends of the guide rod (78) are respectively welded to the inner wall of the processing table (1).

4. The automatic processing device for chassis sheet metal parts according to claim 1, characterized in that: The automatic water cooler (8) comprises a water cooling cylinder (80), a telescopic rod (81), an arc head (82), a sealing opening (83) and a water cooling cavity (84); a water cooling cavity (84) is provided at a middle position inside the water cooling cylinder (80); a sealing opening (83) is provided at a middle position on an upper end surface of the water cooling cylinder (80); a telescopic rod (81) is provided inside the water cooling cavity (84) and passes through the sealing opening (83) upward; and an arc head (82) is provided at the upper end of the telescopic rod (81).

5. The automatic processing device for chassis sheet metal parts according to claim 4, characterized in that: The automatic water cooler (8) further comprises a slide (85), a compression spring (86), a drain port (87), a nozzle (88) and a water inlet pipe (89). The slide (85) is fixed to the lower end of the telescopic rod (81). The slide (85) is in contact with the inner wall of the water cooling chamber (84) around a circle. The slide (85) and the bottom of the water cooling chamber (84) are connected via a compression spring (86). A drain port (87) is provided on the wall of the water cooling chamber (84). A nozzle (88) is installed at the drain port (87). The nozzle (88) is arranged to be inclined upward and extends into the inner side of the limit port (12). A water inlet pipe (89) is installed at one end of the wall of the water cooling chamber (84) away from the drain port (87). A one-way valve is installed in the water inlet pipe (89). A water storage tank (68) is installed at the upper end of the water inlet pipe (89) and located inside the pressing plate (5).

6. The automatic processing device for chassis sheet metal parts according to claim 1, characterized in that: The lower end of the lifting seat (23) is symmetrically provided with pressure plates (60) located on both sides of the stamping shell (26), and each group of the pressure plates (60) is vertically welded with a punching rod (61), and the lower end of the punching rod (61) is provided with a tip (62). The pressing plate (5) is provided with a reserved opening (63) for the punching rod (61) to pass through, and the bottom of the lower mold (2) is provided with a buffer groove acting on the punching rod (61).

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