A stamping device and stamping process for automotive panel parts

Abstract

The present application provides a stamping device and stamping process for automobile covering parts, which relates to the technical field of stamping equipment. It includes: a stamping assembly, an upper die and a lower die, the stamping assembly includes a frame, a supporting platform, a lifting seat and a driving device, the lifting seat and the supporting platform are relatively arranged on the frame, the driving device is connected to the lifting seat in a transmission manner and can drive the lifting seat to approach or move away from the supporting platform, the supporting platform is slidably connected to the frame and can slide away from the bottom of the lifting seat in a horizontal direction; the upper die is detachably connected to the bottom of the lifting seat; the lower die is detachably connected to the top of the supporting platform. The present application has the effect of saving effort when replacing the mold.

Description

Technical Field

[0001] The present application relates to the technical field of stamping equipment, and in particular to a stamping device and a stamping process for automobile covering parts. Background Art

[0002] When producing automobile covering parts, stamping equipment is required.

[0003] Existing stamping equipment generally includes a supporting table, a lower die, a stamping member, and an upper die. The stamping member is disposed directly above the supporting table, the lower die is arranged on the supporting table, and the upper die is arranged at the bottom of the stamping member. The user can drive the upper die to move downward to fit with the lower die by controlling the stamping member to stamp the material into an automobile covering part.

[0004] However, because different types of upper dies and lower dies need to be replaced when producing different types of automobile covering parts, and when using a crane to carry the upper die or the lower die, the hook of the crane needs to use a connecting rope such as a steel rope to connect the object to be lifted. Since the stamping member directly above the supporting table will restrict the movement of the hook and the connecting rope between the stamping member and the supporting table, the user cannot directly lift the upper die and the lower die to the position between the stamping member and the supporting table by the crane.

[0005] Therefore, when replacing the die, the user needs to first use the crane to lift the upper die and the lower die to be replaced to the vicinity of the supporting table, then manually lift the upper die onto the supporting table, then drive the stamping member close to the upper die, and then use a long-handled wrench and bolts to fix the upper die on the stamping member. Then, lift the lower die onto the supporting table, and finally manually adjust the positions of the upper die and the lower die, so that it is relatively laborious to replace the die of the existing stamping equipment.

[0006] In view of this, a stamping device and a stamping process for automobile covering parts are needed. Summary of the Invention

[0007] In order to solve the problem that the existing stamping equipment cannot use a crane to transport the die in place when replacing the die, and can only manually transport the die in place, and the replacement process is relatively laborious, the present application provides a stamping device and a stamping process for automobile covering parts.

[0008] In a first aspect, a stamping device for automobile covering parts provided by the present application adopts the following technical solution: It includes a stamping assembly, an upper die, and a lower die. The stamping assembly includes a frame, a supporting table, a lifting seat, and a driving device. The lifting seat and the supporting table are arranged vertically opposite to each other on the frame. The driving device is in transmission connection with the lifting seat and can drive the lifting seat to approach or move away from the supporting table. The supporting table is slidably connected to the frame and can slide away from directly below the lifting seat in the horizontal direction;

[0009] The upper die is detachably connected to the bottom of the lifting seat;

[0010] The lower die is detachably connected to the top of the supporting table.

[0011] By adopting the above technical solution, when the die needs to be replaced, the user can first remove the old upper die and lower die from the lifting seat and the supporting table respectively, then slide the supporting table horizontally away from directly below the lifting seat, and then use a crane to lift the new upper die onto the supporting table. Next, slide the supporting table horizontally back to directly below the lifting seat, and then control the driving device to drive the lifting seat close to the supporting table so as to preliminarily fix the upper die on the lifting seat. Then, slide the supporting table horizontally away from directly below the lifting seat and use a crane to lift the new lower die onto the supporting table. Finally, slide the supporting table horizontally back to directly below the lifting seat, and after accurately aligning the upper die and the lower die vertically, fix the upper die and the lower die, so that the user does not need to manually lift and place the upper die or the lower die in place, thus making it relatively labor-saving to replace the die in the existing stamping equipment.

[0012] Specifically, the frame includes a slide rail, a driving motor and a driving gear. The slide rail is arranged on the frame horizontally. A slider adapted to the slide rail is provided at the bottom of the supporting table, and the supporting table is slidably connected to the slide rail via the slider. The driving gear is arranged on the output shaft of the driving motor. A rack is arranged on the side wall of the supporting table along the length direction of the slide rail, and the driving gear meshes with the rack.

[0013] By adopting the above technical solution, the driving motor can drive the driving gear to rotate, so as to drive the supporting table to slide along the slide rail by the cooperation of the driving gear and the rack.

[0014] Furthermore, the upper die includes an upper mold and an upper locking nut. A upper sliding groove is opened at the bottom of the lifting seat along the moving direction of the supporting table. Upper limiting protrusions are provided on the side walls of the upper sliding groove, and the upper limiting protrusions run through the entire length direction of the upper sliding groove. An upper moving block is slidably arranged in the upper sliding groove. An upper abutting protrusion is provided on the side wall of the upper moving block, and the upper abutting protrusion can abut against the top of the upper limiting protrusion. An upper connection hole is opened on the upper mold, and an upper connection screw hole is opened on the upper moving block. The upper mold can be connected to the lifting seat by sequentially passing a bolt through the upper connection hole and the upper locking nut and screwing them into the upper connection screw hole. The upper locking nut can abut the upper abutting protrusion between the upper locking nut and the upper moving block and limit the upper moving block from sliding along the upper sliding groove;

[0015] The lower die includes a lower mold and a lower locking nut. A lower sliding groove is formed in the top of the supporting table along its moving direction. Lower limiting protrusions are provided on the side walls of the lower sliding groove, and the lower limiting protrusions penetrate through the entire length direction of the lower sliding groove. A lower moving block is slidably arranged in the lower sliding groove. A lower abutting protrusion is provided on the side wall of the lower moving block, and the lower abutting protrusion can abut against the bottom of the lower limiting protrusion. A lower connection hole is formed in the lower mold, and a lower connection screw hole is formed in the lower moving block. The lower mold can be connected to the lifting seat by a bolt sequentially passing through the lower connection hole and the lower locking nut and being screwed into the lower connection screw hole. The lower locking nut can abut the lower abutting protrusion between the lower locking nut and the lower moving block and limit the lower moving block from sliding along the lower sliding groove.

[0016] By adopting the above technical solutions, the upper mold can be suspended on the upper moving block by bolts and move along the length direction of the upper sliding groove with the upper moving block. And the user can tighten the upper locking nut to abut the upper abutting protrusion between the upper locking nut and the upper moving block, so as to limit the upper moving block from sliding along the upper sliding groove; the lower mold can be suspended on the lower moving block by bolts and move along the length direction of the lower sliding groove with the lower moving block. And the user can tighten the lower locking nut to abut the lower abutting protrusion between the lower locking nut and the lower moving block, so as to limit the lower moving block from sliding along the lower sliding groove.

[0017] Furthermore, a die adjustment assembly is further included. A plurality of the upper sliding grooves are formed in the bottom of the lifting seat at parallel intervals. The upper moving blocks are arranged in each of the upper sliding grooves. The die adjustment assembly is in transmission connection with each of the upper moving blocks and can drive any one of the upper moving blocks to slide along the corresponding upper sliding groove.

[0018] A plurality of the lower sliding grooves are formed in the top of the supporting table. Each of the lower sliding grooves is formed along the length direction of the upper sliding groove. And the lower moving blocks are arranged in each of the lower sliding grooves. The upper sliding grooves and the lower sliding grooves are in one-to-one vertical correspondence.

[0019] By adopting the above technical solutions, when installing the upper mold and the lower mold, the user can first select an upper moving block in an upper sliding groove to connect the upper mold, and then select a lower moving block in the lower sliding groove corresponding to the upper sliding groove to connect the lower mold to realize the vertical alignment of the upper mold and the lower mold in the width direction of the upper sliding groove. Then, the die adjustment assembly is used to drive the upper moving block connected to the upper mold to move along the upper sliding groove, so as to realize the vertical alignment of the upper mold and the lower mold in the length direction of the upper sliding groove, thereby being able to conveniently realize the accurate vertical alignment of the upper mold and the lower mold without manual adjustment by the user.

[0020] Further, the die adjustment assembly includes a driving member, a limiting tube, and a plurality of transmission members. Each of the upper sliding grooves penetrates the entire lifting seat. The driving member is connected to one end of the limiting tube, and the other end of the limiting tube is detachably connected to the port of any one of the upper sliding grooves. Transmission members are provided between the port of the upper sliding groove and the upper moving block and inside the limiting tube. The driving member can drive the transmission member in the limiting tube into the upper sliding groove connected to the limiting tube and push the upper moving block to move along the upper sliding groove.

[0021] By adopting the above technical solution, when it is necessary to drive the upper moving block connected to the upper die to move along the upper sliding groove, the user can first connect the port of the limiting tube far from the driving member to the port of the upper sliding groove, and then start the driving member to drive the transmission member in the limiting tube into the upper sliding groove, so that the upper moving block can be pushed to move along the upper sliding groove through the transmission member.

[0022] Further, the transmission member is a metal bead. The limiting tube includes a straight tube section and a flexible tube section. The straight tube section is arranged on the frame, the driving member is a telescopic cylinder, the cylinder body of the telescopic cylinder is arranged on the frame, and the end of the piston rod of the telescopic cylinder passes through the port of the straight tube section and is inserted into the straight tube section and can move along the length direction of the straight tube section. A plugging plate is arranged on the outer wall of the flexible tube section. A plurality of plugging grooves are formed at the top of the lifting seat. The plugging grooves correspond to the upper sliding grooves one by one. Each plugging groove leads to the corresponding upper sliding groove. A relief long hole is formed on the side wall of each plugging groove far from the upper moving block. One end of each relief long hole extends to the notch of the plugging groove and forms an opening. The plugging plate can be inserted into the plugging groove and abutted against the inner wall of the plugging groove, and the port of the flexible tube section can pass through the relief long hole to communicate with the upper sliding groove.

[0023] By adopting the above technical solution, the telescopic cylinder can push the steel beads in the straight tube section towards the flexible tube section by driving the piston rod to extend; the flexible tube section and the plugging plate are arranged so that the limiting tube can be connected to the upper sliding groove corresponding to the plugging groove by connecting to any plugging groove on the lifting seat.

[0024] Further, the limiting tube further includes a limiting plate and an elastic member. A receiving groove is formed on the side of the plugging plate close to the flexible tube section. One end of the limiting plate is inserted into the receiving groove and can slide along the receiving groove. The other end of the limiting plate passes through the through hole formed on the flexible tube section and extends into the flexible tube section. The elastic member is arranged between the limiting plate and the inner wall of the receiving groove, and the elastic member can apply a force to the limiting plate away from the plugging plate to separate the interior of the flexible tube section.

[0025] By adopting the above technical solution, when the telescopic cylinder stops working, the elastic member can apply a force away from the insertion plate to the limiting plate, so that the limiting plate can block the interior of the hose section and prevent the transmission member between the limiting plate and the telescopic cylinder from falling out of the limiting tube from the port of the hose section.

[0026] Furthermore, the thickness of the limiting plate gradually decreases in the direction from near to far away from the insertion plate.

[0027] By adopting the above technical solution, the setting of the thickness of the limiting plate can form inclined surfaces on both side plates of the limiting plate. The setting of these inclined surfaces enables the transmission member to easily push the limiting plate into the receiving groove when abutting against any plate surface of the limiting plate, so that it is convenient for the user to load the transmission member into the limiting tube or for the transmission member to leave the limiting tube.

[0028] Furthermore, the die adjustment assembly further includes cover plates, which correspond to the insertion slots one by one. Each cover plate can be inserted into the corresponding insertion slot to abut against the inner wall of the insertion slot and block the port of the corresponding upper sliding groove.

[0029] By adopting the above technical solution, the cover plate can block the transmission member in the upper sliding groove to prevent the transmission member in the upper sliding groove from falling out of the port of the upper sliding groove.

[0030] A stamping process for automotive body panels provided in the second aspect of the present application adopts the following technical solution:

[0031] Die adjustment step: First, connect the upper die to the upper moving block in at least one upper sliding groove by bolts, and loosen the upper locking nut to ensure that the upper moving block can slide in the upper sliding groove;

[0032] Then connect the lower die to the lower moving block in the lower sliding groove corresponding to the upper sliding groove by bolts, and tighten the lower locking nut to limit the sliding of the lower moving block in the lower sliding groove;

[0033] Next, push the upper die along the upper sliding groove to preliminarily align the upper die with the lower die, and control the driving device to drive the lifting seat close to the supporting table to facilitate judging the deviation between the upper die and the lower die;

[0034] Then pull out the cover plate at the port of the upper sliding groove from the corresponding insertion slot and insert the insertion plate into the insertion slot to communicate the limiting tube with the upper sliding groove;

[0035] Next, slowly extend the piston rod of the telescopic cylinder out of the cylinder body to drive the transmission member to push the upper moving block to move along the upper sliding groove. After the upper die and the lower die are accurately aligned vertically, close the telescopic cylinder;

[0036] Finally, the upper locking nut is tightened to limit the upper moving block from sliding in the upper sliding groove, and the plug-in board is pulled out from the plug-in slot and the cover plate is inserted back.

[0037] By adopting the above technical solution, the user can easily achieve accurate upper and lower alignment of the upper mold and the lower mold without the need for manual adjustment by the user, thereby making the entire mold replacement process of the existing stamping equipment more labor-saving.

[0038] In summary, the present application includes at least one of the following beneficial technical effects:

[0039] 1. It includes a stamping assembly, an upper die and a lower die. The stamping assembly includes a frame, a supporting platform, a lifting seat and a driving device. The lifting seat and the supporting platform are relatively arranged on the frame up and down. The driving device is connected to the lifting seat in a transmission manner and can drive the lifting seat to approach or move away from the supporting platform. The supporting platform is slidably connected to the frame and can slide away from the bottom of the lifting seat in the horizontal direction. The upper die is detachably connected to the bottom of the lifting seat, and the lower die is detachably connected to the top of the supporting platform. When the die needs to be replaced, the user can first remove the old upper die and lower die from the lifting seat and the supporting platform respectively, and then slide the supporting platform away from the bottom of the lifting seat in the horizontal direction. Then, the new upper die is hoisted onto the supporting platform by a crane, and then the supporting platform is slid back horizontally to the bottom of the lifting seat, and then the driving device is controlled to drive the lifting seat close to the supporting platform, so that the upper die can be initially fixed on the lifting seat, and then the supporting platform is slid horizontally away from the bottom of the lifting seat and the new lower die is hoisted onto the supporting platform by a crane, and finally, the supporting platform is slid back horizontally to the bottom of the lifting seat, and the upper die and the lower die are fixed after the upper die and the lower die are accurately aligned up and down, so that the user does not need to manually lift the upper die or the lower die into place, thereby making the existing stamping equipment more labor-saving when replacing the die;

[0040] The top of the supporting platform is provided with a plurality of lower slide blocks, each of which is provided with a plurality of lower slide blocks, and the upper slide blocks are provided with a plurality of lower slide blocks. The upper slide blocks correspond to the lower slide blocks one by one, so that when the upper mold and the lower mold are installed, the user can first select an upper moving block in the upper slide block to connect the upper mold, and then select the lower moving block in the lower slide block corresponding to the upper slide block to connect the lower mold to realize the upper and lower alignment of the upper mold and the lower mold in the width direction of the upper slide block, and then drive the upper moving block connected to the upper mold to move along the upper slide block through the mold adjusting assembly, so as to realize the upper and lower alignment of the upper mold and the lower mold in the length direction of the upper slide block, thereby realizing the upper and lower precise alignment of the upper and lower molds without manual adjustment by the user. Description of the Drawings

[0041] Figure 1 is a perspective view of a stamping device for automotive body panels according to the present application;

[0042] Figure 2 is a left view of a stamping device for automotive body panels according to the present application;

[0043] Figure 3 is a schematic cross-sectional view taken along the Figure 2 A-A direction in ;

[0044] Figure 4 is Figure 3 a schematic enlarged view of area B in , which shows a plug-in board, a limit plate and a cover plate;

[0045] Figure 5 is a schematic cross-sectional view taken along the Figure 3 C-C direction in ;

[0046] Figure 6 is Figure 5 a schematic enlarged view of area D in , which shows an upper locking nut and a lower locking nut.

[0047] Reference numerals: 1, stamping assembly; 11, frame; 111, slide rail; 112, drive motor; 113, drive gear; 12, support table; 121, rack; 122, lower moving block; 13, lifting seat; 131, upper moving block; 14, drive device; 2, upper die; 21, upper mold; 22, upper locking nut; 3, lower die; 31, lower mold; 32, lower locking nut; 4, die adjustment assembly; 41, drive member; 42, limit tube; 421, straight tube section; 422, flexible tube section; 423, plug-in board; 424, limit plate; 425, elastic member; 426, sealing cover; 43, transmission member; 44, cover plate. Detailed Description of the Invention

[0048] The following will be further described in conjunction with the attached Figures 1-6 drawings:

[0049] Refer to Figure 1 and Figure 2, A stamping device for automotive body panels, comprising a stamping assembly 1, an upper die 2, a lower die 3 and four die-adjusting assemblies 4. The stamping assembly 1 includes a frame 11, a supporting table 12, a lifting seat 13 and a driving device 14. The lifting seat 13 and the supporting table 12 are arranged vertically opposite to each other on the frame 11. The driving device 14 can be a hydraulic cylinder, the cylinder body of which is arranged at the top of the frame 11, and the piston rod of the hydraulic cylinder extends downward out of the cylinder body and is connected to the top of the lifting seat 13, so as to be able to drive the lifting seat 13 to lift through the driving device 14. The frame 11 includes two slide rails 111, a driving motor 112 and a driving gear 113. The two slide rails 111 are arranged horizontally and parallel to each other on the frame 11. The bottom of the supporting table 12 is provided with sliders adapted to the slide rails 111, and the supporting table 12 is slidably connected to the slide rails 111 via the sliders. The driving gear 113 is arranged on the output shaft of the driving motor 112. A rack 121 is arranged on the side wall of the supporting table 12 along the length direction of the slide rail 111. The driving gear 113 meshes with the rack 121 and can drive the supporting table 12 to slide horizontally away from directly below the lifting seat 13.

[0050] See Figure 3 , Figure 5 and Figure 6 , Eight upper sliding grooves are arranged parallel to each other at intervals along the length direction of the slide rail 111 at the bottom of the lifting seat 13, and each upper sliding groove runs through the entire lifting seat 13. The upper die 2 includes an upper mold 21 and four upper locking nuts 22. Upper limiting protrusions are arranged on both side walls of each upper sliding groove, and each upper limiting protrusion runs through the entire length direction of the upper sliding groove, so that each upper sliding groove is formed into a T-shaped groove with a cross-section of "T". Two upper moving blocks 131 are slidably arranged in each upper sliding groove. An upper abutting protrusion is arranged on both side walls of each upper moving block 131, and each upper abutting protrusion can abut against the top of the upper limiting protrusion, so that each upper moving block 131 is formed into a T-shaped block with a cross-section of "T". Upper connecting holes are arranged at the four end corners of the upper mold 21, and upper connecting screw holes are arranged on each upper moving block 131. The upper mold 21 can be connected to the lifting seat 13 by four bolts sequentially passing through the four upper connecting holes and the four upper locking nuts 22 and screwing into the four upper connecting screw holes in any two upper sliding grooves. Each upper locking nut 22 can abut the corresponding upper abutting protrusion between the upper locking nut 22 and the upper moving block 131 and limit the upper moving block 131 from sliding along the upper sliding groove.

[0051] See Figure 3 , Figure 5 and Figure 6, eight downward sliding grooves are formed in the top of the supporting table 12, each downward sliding groove runs through the entire supporting table 12, and each downward sliding groove is formed along the length direction of the upward sliding groove. The upward sliding groove and the downward sliding groove are in one-to-one correspondence up and down; the lower die 3 includes a lower die body 31 and four lower locking nuts 32. Lower limiting protrusions are provided on the two side walls of each downward sliding groove, and each lower limiting protrusion runs through the entire length direction of the downward sliding groove, so that each downward sliding groove is formed into a T-shaped groove with a "T" cross-section; two lower moving blocks 122 are slidably arranged in each downward sliding groove. One lower abutting protrusion is provided on each of the two side walls of each lower moving block 122, and each lower abutting protrusion can abut against the top of the lower limiting protrusion, so that each lower moving block 122 is formed into a T-shaped block with a "T" cross-section; lower connecting holes are formed at the four end corners of the lower die body 31, and lower connecting screw holes are formed on each lower moving block 122. The lower die body 31 can be connected to the lifting seat 13 by four bolts passing through the four lower connecting holes and the four lower locking nuts 32 in sequence and screwing with the four lower connecting screw holes in any two downward sliding grooves. Each lower locking nut 32 can abut the corresponding lower abutting protrusion between the lower locking nut 32 and the lower moving block 122 and limit the lower moving block 122 from sliding along the downward sliding groove.

[0052] See Figure 1 , Figure 3 , Figure 4 and Figure 6, a die adjusting assembly 4 is provided on each of the four columns of the frame 11. Each die adjusting assembly 4 includes a driving member 41, a limiting tube 42, a plurality of transmission members 43 and a plurality of cover plates 44. The transmission members 43 can be metal beads such as steel beads. The limiting tube 42 includes a straight tube section 421, a flexible tube section 422, two limiting plates 424 and two elastic members 425. The straight tube section 421 is provided on the frame 11. The straight tube section 421 can be a metal tube. The flexible tube section 422 can be a metal hose with good pressure-bearing performance such as a corrugated pipe or a wire braided hose. The driving member 41 is a telescopic cylinder. The cylinder body of the telescopic cylinder is provided on the frame 11. The end of the piston rod of the telescopic cylinder passes through the port of the straight tube section 421 and is inserted into the straight tube section 421 and can move along the length direction of the straight tube section 421. Two plug-in plates 423 are oppositely provided on the outer wall of the flexible tube section 422 near the port of itself. Sixteen plug-in slots are formed at the top of the lifting seat 13. The sixteen plug-in slots correspond to the sixteen ports of the eight upper sliding grooves one by one. Each plug-in slot leads to the corresponding upper sliding groove. A relief long hole is formed on the side wall of each plug-in slot far from the upper moving block 131. One end of each relief long hole extends to the notch of the plug-in slot and forms an opening. Each plug-in plate 423 can be inserted into the plug-in slot and abuts against the inner wall of the plug-in slot, and the port of the flexible tube section 422 passes through the relief long hole to communicate with the upper sliding groove, so that the telescopic cylinder can push the steel beads in the straight tube section 421 towards the flexible tube section 422 by driving the piston rod to extend, and then push the upper moving block 131 to move along the upper sliding groove through the transmission member 43. The cover plates 44 correspond to the plug-in slots one by one. Each cover plate 44 can be inserted into the corresponding plug-in slot and abuts against the inner wall of the plug-in slot, and seals the port of the corresponding upper sliding groove, so that the transmission members 43 in the upper sliding groove will not fall out of the upper sliding groove from the port of the upper sliding groove.

[0053] See Figure 1 , Figure 3 , Figure 4 and Figure 6, the limiting plates 424 and the elastic members 425 correspond to the plug-in plates 423 one by one. A receiving groove is formed on one side of each plug-in plate 423 close to the hose section 422. One end of each limiting plate 424 is inserted into the receiving groove and can slide along the receiving groove. The other end of each limiting plate 424 passes through a through hole formed on the hose section 422 and extends into the interior of the hose section 422. Each elastic member 425 is disposed between a corresponding limiting plate 424 and the inner wall of the receiving groove. The elastic member 425 can be a set of two compression springs, so as to apply a force away from the plug-in plate 423 to the limiting plate 424 through the compression springs, so that the limiting plate 424 can partition the interior of the hose section 422 and prevent the transmission member 43 between the limiting plate 424 and the telescopic cylinder from falling out of the limiting tube 42 from the port of the hose section 422; the thickness of each limiting plate 424 gradually decreases in the direction from close to far from the plug-in plate 423, so that inclined surfaces are formed on both side plates of the limiting plate 424. The arrangement of these inclined surfaces enables the transmission member 43 to easily push the limiting plate 424 into the receiving groove when abutting against any plate surface of the limiting plate 424, so that it is convenient for the user to load the transmission member 43 into the limiting tube 42 or the transmission member 43 to leave the limiting tube 42.

[0054] The using process of the stamping device for automotive covering parts described in this application is as follows:

[0055] When the mold needs to be replaced, the user can first remove the old upper mold 2 and lower mold 3 from the lifting seat 13 and the supporting table 12 respectively, then start the driving motor 112 to slide the supporting table 12 horizontally away from directly below the lifting seat 13, and then use a crane to lift the new upper mold 2 onto the supporting table 12. Then start the driving motor 112 to slide the supporting table 12 horizontally back to directly below the lifting seat 13, and then control the driving device 14 to drive the lifting seat 13 to approach the supporting table 12, so as to be able to suspend the upper die 21 on the upper moving block 131 through bolts. At this time, loosen the upper locking nut 22 so that the four upper moving blocks 131 can move along the length direction of the corresponding upper sliding groove;

[0056] Then start the driving motor 112 to slide the supporting table 12 horizontally away from directly below the lifting seat 13 and use a crane to lift the new lower mold 3 onto the supporting table 12. Finally, start the driving motor 112 to slide the supporting table 12 horizontally back to directly below the lifting seat 13, and select the lower moving block 122 in the lower sliding groove corresponding to the used upper sliding groove to fix the lower die 31, so as to realize the vertical alignment of the upper die 21 and the lower die 31 in the width direction of the upper sliding groove;

[0057] Then, after initially aligning the upper die 21 and the lower die 31 vertically along the length direction of the upper chute by the human eye, the lower die 31 is fixed to the lower moving block 122 by bolts, and the lower locking nut 32 is tightened to make the lower abutting protrusion abut between the lower locking nut 32 and the lower moving block 122, so as to restrict the lower moving block 122 from sliding along the lower chute.

[0058] Then, the four cover plates 44 of the two used upper chutes are pulled out, and the ports at the ends of the four limiting tubes 42 far from the driving member 41 are respectively connected to the four ports. Then, the piston rod of the driving telescopic cylinder is started to slowly extend out of the cylinder body to drive the transmission member 43 to push the upper moving block 131 to move along the upper chute. After the upper die 21 and the lower die 31 are accurately aligned vertically, the telescopic cylinder is closed. Then, the upper locking nut 22 is tightened to restrict the upper moving block 131 from sliding in the upper chute, and the insertion plate 423 is pulled out of the insertion slot and the cover plate 44 is inserted back.

[0059] Based on the structure of the above-mentioned stamping device for automotive body panels, the second aspect of the present application further provides a stamping process for automotive body panels. This method is implemented by using the above-mentioned stamping device for automotive body panels. The method specifically includes a die adjustment step: First, the upper die 21 is connected to the upper moving block 131 in at least one upper chute by bolts, and the upper locking nut 22 is loosened to ensure that the upper moving block 131 can slide in the upper chute.

[0060] Then, the lower die 31 is connected to the lower moving block 122 in the lower chute corresponding to the upper chute by bolts, and the lower locking nut 32 is tightened to restrict the lower moving block 122 from sliding in the lower chute.

[0061] Then, the upper die 21 is pushed along the upper chute to initially align the upper die 21 and the lower die 31, and the driving device 14 is controlled to drive the lifting seat 13 to approach the supporting table 12 to facilitate judging the deviation between the upper die 21 and the lower die 31.

[0062] Then, the cover plate 44 at the port of the upper chute is pulled out of the corresponding insertion slot and the insertion plate 423 is inserted into the insertion slot to communicate the limiting tube 42 with the upper chute.

[0063] Then, the piston rod of the driving telescopic cylinder is slowly extended out of the cylinder body to drive the transmission member 43 to push the upper moving block 131 to move along the upper chute. After the upper die 21 and the lower die 31 are accurately aligned vertically, the telescopic cylinder is closed.

[0064] Finally, the upper locking nut 22 is tightened to restrict the upper moving block 131 from sliding in the upper chute, and the insertion plate 423 is pulled out of the insertion slot and the cover plate 44 is inserted back.

[0065] Since a stamping process for automotive panel parts of the present application is implemented by using the above-mentioned stamping device for automotive panel parts, it can also have all the technical effects of the above-mentioned stamping device for automotive panel parts. In particular, the user can easily achieve the precise vertical alignment of the upper die 21 and the lower die 31 without manual adjustment by the user, thus making the entire die replacement process of the existing stamping equipment more labor-saving.

[0066] The implementation principle of the stamping device for automotive panel parts described in the present application is as follows:

[0067] When the die needs to be replaced, the user can first remove the old upper die 2 and lower die 3 from the lifting seat 13 and the supporting table 12 respectively, then slide the supporting table 12 horizontally away from directly below the lifting seat 13, then use a crane to lift the new upper die 2 onto the supporting table 12, then slide the supporting table 12 horizontally back to directly below the lifting seat 13, and then control the driving device 14 to drive the lifting seat 13 to approach the supporting table 12 so as to be able to suspend the upper die 21 onto the upper moving block 131 through bolts. At this time, loosen the upper locking nut 22 so that the four upper moving blocks 131 can move along the length direction of the corresponding upper sliding grooves, then slide the supporting table 12 horizontally away from directly below the lifting seat 13 and use a crane to lift the new lower die 3 onto the supporting table 12, and finally slide the supporting table 12 horizontally back to directly below the lifting seat 13, and select the lower moving block 122 in the lower sliding groove corresponding to the used upper sliding groove to fix the lower die 31 so as to be able to achieve the vertical alignment of the upper die 21 and the lower die 31 in the width direction of the upper sliding groove. Then, after initially vertically aligning the positions of the upper die 21 and the lower die 31 in the length direction of the upper sliding groove, fix the lower die 31 to the lower moving block 122 through bolts, and tighten the lower locking nut 32 to abut the lower abutting protrusion between the lower locking nut 32 and the lower moving block 122, thereby being able to limit the lower moving block 122 from sliding along the lower sliding groove. Then, pull out the four cover plates 44 of the two used upper sliding grooves and connect the ports at the ends of the four limiting tubes 42 far from the driving member 41 to the four ports respectively. Then, start the piston rod of the driving telescopic cylinder to slowly extend out of the cylinder body to drive the transmission member 43 to push the upper moving block 131 to move along the upper sliding groove. After the upper die 21 and the lower die 31 are precisely vertically aligned, close the telescopic cylinder, and then tighten the upper locking nut 22 to limit the upper moving block 131 from sliding in the upper sliding groove, and pull out the plug-in plate 423 from the plug-in groove and insert the cover plate 44 back, so that the user neither needs to manually lift and place the upper die 2 or the lower die 3 in place, nor can easily achieve the precise vertical alignment of the upper die 21 and the lower die 31 without manually pushing the upper die 21 for adjustment, thus making the die replacement of the existing stamping equipment more labor-saving.

[0068] The embodiments of the specific implementation manners are all preferred embodiments of the present application, and do not limit the protection scope of the present application thereby. Identical components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A punching device for automobile covering parts, characterized in that: The invention comprises a stamping assembly (1), an upper die (2), a lower die (3) and a die adjustment assembly (4); the stamping assembly (1) comprises a frame (11), a supporting platform (12), a lifting seat (13) and a driving device (14); the lifting seat (13) and the supporting platform (12) are arranged on the frame (11) in a vertical direction relative to each other; the driving device (14) is connected to the lifting seat (13) in a transmission manner and can drive the lifting seat (13) to move closer to or away from the supporting platform (12); the supporting platform (12) is connected to the frame (11) in a sliding manner and can slide away from the bottom of the lifting seat (13) in a horizontal direction; The upper mold (2) comprises an upper mold (21) and an upper locking nut (22); an upper sliding groove is provided at the bottom of the lifting seat (13) along the moving direction of the supporting platform (12); an upper limit protrusion is provided on the side wall of the upper sliding groove; the upper limit protrusion runs through the entire length direction of the upper sliding groove; an upper moving block (131) is slidably provided in the upper sliding groove; an upper abutting protrusion is provided on the side wall of the upper moving block (131); the upper abutting protrusion can abut against the top of the upper limit protrusion, so that An upper connection hole is provided on the upper mold (21), and an upper connection screw hole is provided on the upper moving block (131). The upper mold (21) can be connected to the lifting seat (13) by bolts passing through the upper connection hole and the upper locking nut (22) in sequence and being screwed to the upper connection screw hole. The upper locking nut (22) can abut the upper abutting protrusion between the upper locking nut (22) and the upper moving block (131) and restrict the upper moving block (131) from sliding along the upper sliding groove. The lower mold (3) comprises a lower mold (31) and a lower locking nut (32); a lower sliding groove is provided on the top of the support platform (12) along its own moving direction; a lower limit protrusion is provided on the side wall of the lower sliding groove; the lower limit protrusion runs through the entire length direction of the lower sliding groove; a lower moving block (122) is slidably provided in the lower sliding groove; a lower abutting protrusion is provided on the side wall of the lower moving block (122); the lower abutting protrusion can abut against the bottom of the lower limit protrusion; the lower mold A lower connecting hole is provided on the lower mold (31), and a lower connecting screw hole is provided on the lower moving block (122). The lower mold (31) can be connected to the lifting seat (13) by bolts passing through the lower connecting hole and the lower locking nut (32) in sequence and being screwed to the lower connecting screw hole. The lower locking nut (32) can abut the lower abutting protrusion between the lower locking nut (32) and the lower moving block (122) and limit the lower moving block (122) from sliding along the lower slide groove; The bottom of the lifting seat (13) is provided with a plurality of upper slide grooves spaced in parallel, each of which is provided with an upper moving block (131), the mold adjustment assembly (4) is transmission-connected with each of the upper moving blocks (131) and can drive any of the upper moving blocks (131) to slide along the corresponding upper slide groove, the top of the supporting platform (12) is provided with a plurality of lower slide grooves, each of which is provided along the length direction of the upper slide groove, and each of which is provided with a lower moving block (122), and the upper slide grooves correspond to the lower slide grooves one by one in the upper and lower directions; The mold adjustment assembly (4) comprises a driving member (41), a limiting tube (42) and a plurality of transmission members (43); each of the upper slide grooves runs through the entire lifting seat (13); the driving member (41) is connected to one end of the limiting tube (42); the other end of the limiting tube (42) is detachably connected to a port of any upper slide groove; the transmission member (43) is provided between the port of the upper slide groove and the upper moving block (131) and inside the limiting tube (42); the driving member (41) can drive the transmission member (43) in the limiting tube (42) to enter the upper slide groove connected to the limiting tube (42) and push the upper moving block (131) to move along the upper slide groove.

2. A punching device for automobile covering parts according to claim 1, characterized in that: The frame (11) comprises a slide rail (111), a driving motor (112) and a driving gear (113); the slide rail (111) is arranged on the frame (11) in a horizontal direction; a slider matched with the slide rail (111) is arranged at the bottom of the supporting platform (12); and the supporting platform (12) is slidably connected to the slide rail (111) via the slider; the driving gear (113) is arranged on the output shaft of the driving motor (112); a rack (121) is arranged on the side wall of the supporting platform (12) along the length direction of the slide rail (111); and the driving gear (113) is meshed with the rack (121).

3. A punching device for automobile covering parts according to claim 1, characterized in that: The transmission member (43) is a metal bead. The limit tube (42) comprises a straight tube section (421) and a hose section (422). The straight tube section (421) is arranged on the frame (11). The driving member (41) is a telescopic cylinder. The cylinder body of the telescopic cylinder is arranged on the frame (11). The end of the piston rod of the telescopic cylinder passes through the port of the straight tube section (421) and is inserted into the straight tube section (421) and can move along the length direction of the straight tube section (421). The outer wall of the hose section (422) is provided with a plug-in board (423). A plurality of plug-in slots are provided on the top of the lifting seat (13), and the plug-in slots correspond to the upper slide slots one by one. Each of the plug-in slots leads to the corresponding upper slide slot. A long clearance hole is provided on the side wall of each of the plug-in slots away from the upper moving block (131). One end of each of the long clearance holes extends to the notch of the plug-in slot and forms an opening. The plug-in plate (423) can be inserted into the plug-in slot and abut against the inner wall of the plug-in slot, and the port of the hose section (422) passes through the long clearance hole to communicate with the upper slide slot.

4. A punching device for automobile covering parts according to claim 3, characterized in that: The limiting tube (42) further comprises a limiting plate (424) and an elastic member (425); a receiving groove is provided on a side of the plug-in plate (423) close to the hose section (422); one end of the limiting plate (424) is inserted into the receiving groove and can slide along the receiving groove; the other end of the limiting plate (424) passes through a through hole provided on the hose section (422) and extends into the interior of the hose section (422); the elastic member (425) is provided between the limiting plate (424) and the inner wall of the receiving groove; and the elastic member (425) can apply a force to the limiting plate (424) to move away from the plug-in plate (423) so that the limiting plate (424) blocks the interior of the hose section (422).

5. A punching device for automobile covering parts according to claim 4, characterized in that: The thickness of the limiting plate (424) gradually decreases in a direction from approaching to moving away from the plug-in board (423).

6. A punching device for automobile covering parts according to claim 3, characterized in that: The mold adjustment assembly (4) further comprises a cover plate (44), wherein the cover plate (44) corresponds to the plug-in slots one by one, and each of the cover plates (44) can be inserted into the corresponding plug-in slot to abut against the inner wall of the plug-in slot and block the corresponding port of the upper slide slot.

7. A stamping process for automobile covering parts, implemented by using a stamping device for automobile covering parts according to claim 6, characterized in that: include: The mold adjustment step is as follows: firstly, the upper mold (21) is connected to the upper moving block (131) in at least one upper sliding groove by means of bolts, and the upper locking nut (22) is loosened to ensure that the upper moving block (131) can slide in the upper sliding groove; Then, the lower mold (31) is connected to the lower moving block (122) in the lower slide groove corresponding to the upper slide groove by bolts, and the lower locking nut (32) is tightened to limit the sliding of the lower moving block (122) in the lower slide groove; Then, the upper mold (21) is pushed along the upper slide groove to make the upper mold (21) and the lower mold (31) preliminarily aligned, and the driving device (14) is controlled to drive the lifting seat (13) to approach the supporting platform (12) so as to judge the deviation between the upper mold (21) and the lower mold (31); Then, the cover plate (44) at the upper slide groove port is pulled out from the corresponding plug-in groove and the plug-in plate (423) is inserted into the plug-in groove, so that the limit tube (42) is connected to the upper slide groove; Then, the piston rod of the telescopic cylinder is driven to slowly extend out of the cylinder body, so as to drive the transmission member (43) to push the upper moving block (131) to move along the upper slide groove, and the telescopic cylinder is closed after the upper mold (21) and the lower mold (31) are accurately aligned up and down; Finally, the upper locking nut (22) is tightened to limit the upper moving block (131) from sliding in the upper sliding groove, and the plug-in plate (423) is pulled out from the plug-in groove and the cover plate (44) is inserted back.

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