Automobile outer plate workpiece stamping die with excess material pressing mechanism

Abstract

The application relates to a stamping die with a surplus material pressing mechanism for an automobile outer plate workpiece, and relates to the field of stamping dies, which comprises a lower die base, a male die, an upper die base and a female die, a sliding base is slidably connected to the lower die base, a driving element one is arranged on the lower die base, a cutter is slidably arranged on the sliding base, a pressing block is slidably arranged on the cutter, an elastic element one is arranged on the cutter, and a driving element two is arranged on the sliding base. When the cutter is lowered to cut off the surplus material part, the surplus material part on the workpiece is pressed by the pressing block, the splashing of the surplus material at the cutting moment is reduced, damage and harm caused by the splashing of the surplus material to machine elements and operators are reduced, and the safety during cutting of the surplus material is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the field of stamping dies, in particular to a stamping die for an automobile outer plate part with a surplus material pressing mechanism. BACKGROUND

[0002] Stamping dies are widely used in automobile production, especially some outer plate parts which have high requirements for surface quality, and cold stamping dies are usually used for stamping forming.

[0003] As shown in the utility model patent with the patent number CN217451829U, a cold stamping die for automobile parts is disclosed, which comprises a lower die seat, a guide sleeve, a concave die, a water inlet pipe, a water outlet pipe, a driver and a convex die. Four guide columns are arranged in a rectangular distribution on the lower die seat, and a top plate is arranged at the top end of each guide column. Four guide sleeves are arranged, and each guide sleeve is slidably arranged on a guide column. The four guide sleeves are embedded in the upper die seat. The concave die is arranged on the lower die seat, and a groove is arranged on the concave die. A cavity is arranged in the concave die. The water inlet pipe and the water outlet pipe are arranged on the transverse sides of the concave die, and both the water inlet pipe and the water outlet pipe are in communication with the cavity. The driver is arranged at the bottom of the top plate, and the bottom end of the driver is connected with the upper die seat. The convex die is arranged at the bottom of the upper die seat, and the convex die is located above the concave die.

[0004] In the production of automobile outer plate parts, in order to ensure high positional accuracy of the outer plate part relative to the die during forming, a surplus material is often left in the previous process to design a positioning hole. After the completion of the subsequent process, the surplus material is cut off and trimmed. The surplus material may splash at the moment of cutting, which may even injure the operator. Therefore, the stamping die needs to be improved. SUMMARY

[0005] In order to solve the problem that the surplus material may splash at the moment of cutting, the application provides a stamping die for an automobile outer plate part with a surplus material pressing mechanism.

[0006] The stamping die for an automobile outer plate part with a surplus material pressing mechanism provided by the application adopts the following technical scheme:

[0007] The stamping die for an automobile outer plate part with a surplus material pressing mechanism comprises a lower die seat, a convex die arranged on the lower die seat, an upper die seat and a concave die arranged on the upper die seat. A sliding seat is slidably connected to the lower die seat. The sliding seat is located between the convex die and the concave die and on one side of the convex die in the horizontal direction. The sliding seat slides towards or away from the convex die. A driving member one is arranged on the lower die seat to drive the sliding seat to move.

[0008] The cutter is arranged on the slide seat and is driven by the driving element two to move up and down.

[0009] By adopting the above technical scheme, when the workpiece stamping is completed, the upper die seat moves up to drive the concave die to separate from the workpiece, then the driving element one is controlled to drive the slide seat to move close to the convex die, so that the slide seat is located above the convex die, then the driving element two is controlled to drive the cutter to move down, the pressing block abuts against the workpiece to limit the excess material part on the workpiece, then the cutter continues to move down to cut off the excess material part, and the pressing block is used to press the excess material part on the workpiece, so that the spattering of the excess material in the cutting-off moment is reduced, and then the damage and injury caused by the spattering of the excess material to the machine elements and the operator can be reduced, and the safety during cutting off the excess material is improved.

[0010] Optionally, the blanking plate is slidably connected to the lower die seat and slides close to or away from the convex die, the cutter comprises a main cutter that slides up and down on the slide seat and a plurality of side cutters arranged on the main cutter, the elastic element one is arranged on the main cutter, the plurality of side cutters are located on the side of the main cutter away from the convex die and are distributed along the outer periphery of the main cutter, a plurality of through holes are formed in the pressing block and located between adjacent side cutters, an elastic layer is arranged at the lower end of the pressing block, a through groove is formed in the slide seat and communicates with the through holes, a piston is slidably connected to the slide seat and extends into the through groove, the piston slides close to or away from the through groove, and a driving element three is arranged on the slide seat and drives the piston to move.

[0011] The slide seat further comprises a sliding block that slides up and down on the slide seat and is located on the side of the pressing block away from the cutter, a driving assembly is arranged on the slide seat and drives the sliding block to move, a guide plate is hingedly connected to the sliding block, an elastic element two is arranged on the hinge shaft of the guide plate and abuts against the slide seat, so that the guide plate has a tendency to move close to the pressing block, when the elastic element two is in a natural state, the guide plate is inclined downward in the direction close to the pressing block, and the lower end of the guide plate is located above the blanking plate.

[0012] By adopting the above technical scheme, after the cutting knife cuts off the excess material, the side knife divides the excess material into several sections, the driving member three drives the piston to move away from the through groove, the air pressure in the through groove becomes smaller, thereby the several sections of excess material are adsorbed to the briquetting piece, the elastic layer increases the sealing between the briquetting piece and the excess material, when the driving member two drives the cutting knife to move up, the several sections of excess material are driven to move up by the briquetting piece, then the blanking plate is moved close to the convex die, the assembly is driven to drive the sliding block to move down, so that the guide plate extends out of the sliding seat, the guide plate is turned over under the action of the elastic member two, so that the guide plate is inclined downward towards the briquetting piece, then the driving member three drives the piston to move close to the through groove, the air pressure in the through groove becomes larger, thereby the several sections of excess material are pushed away from the briquetting piece, the excess material falls on the guide plate and falls into the blanking plate along the guide plate to realize discharge, without the need for the operator to explore into the inside of the equipment to clean the excess material, the safety of cleaning the excess material is improved.

[0013] Optionally, the piston comprises a sliding part one and a sliding part two which are connected to the sliding seat in a sliding manner, and an elastic member three which is arranged between the sliding part one and the sliding part two, the sliding part one extends into the through groove, and the driving member three drives the sliding part two to move.

[0014] By adopting the above technical scheme, when the driving member three drives the sliding part two to move away from the through groove, the elastic member three is stretched, and the elastic member three is reset to pull the sliding part one to move away from the through groove, by elastically connecting the sliding part one and the sliding part two through the elastic member three, compared with rigid connection, the situation that the piston is broken when the driving member three drives the piston to move away from the through groove can be reduced.

[0015] Optionally, the guide plate is provided with an elastic sheet, the elastic sheet is located on one side of the guide plate close to the briquetting piece, and a plurality of speed reduction holes are formed in the elastic sheet.

[0016] By adopting the above technical scheme, the elastic sheet and the speed reduction holes are arranged, when the excess material falls on the guide plate, the elastic sheet abuts against the excess material to buffer the excess material, the hard collision between the excess material and the guide plate is reduced to reduce the abrasion of the guide plate, which is beneficial to prolong the service life of the guide plate, the excess material is clamped into the speed reduction holes and stretches the elastic sheet in the process of falling along the guide plate, thereby the falling of the excess material is hindered, the falling speed of the excess material is reduced, thereby the noise generated by the excess material falling on the blanking plate can be reduced, and a certain noise reduction effect is achieved.

[0017] Optionally, the guide plate is provided with a convex column one, the elastic sheet is provided with a through hole one for the convex column to pass through, the elastic sheet is further provided with a through hole two, the through hole two is located at one end of the elastic sheet away from the through hole one, the sliding block is provided with a convex column two, the convex column two is located on one side of the sliding block away from the guide plate, and the through hole two is for the convex column two to pass through.

[0018] By adopting the technical scheme, when the elastic sheet is damaged, the elastic sheet can be moved, the convex column is separated from the first through hole, the convex column two is separated from the second through hole, the damaged elastic sheet can be removed from the guide plate, then a new elastic sheet is taken, the convex column one is inserted into the first through hole, the elastic sheet is wound around the lower end of the guide plate, the convex column two is inserted into the second through hole, the convex column one abuts against the inner wall of the first through hole and the convex column two abuts against the inner wall of the second through hole, and the replacement of the elastic sheet can be realized, without replacing the guide plate and the sliding block, so that the replacement of the elastic sheet is more convenient.

[0019] After the elastic sheet is used for a long time, the elasticity decreases, when the guide plate is turned to be close to the pressing block, the convex column two abuts against the inner wall of the second through hole, the guide plate stretches the elastic sheet, and the elastic sheet is close to the surface of the guide plate, so as to reduce the gap between the elastic sheet and the guide plate after the elasticity decreases, and the situation that the excess material is clamped in the gap, and the service life of the elastic sheet is prolonged.

[0020] Optionally, the guide plate is provided with a baffle, the baffle is located on the side of the guide plate close to the pressing block and at the opposite ends of the guide plate, the baffle is provided with an inclined surface, the inclined surface is located on the upper end of the baffle, and the inclined surface is inclined towards the guide plate close to the hinge axis of the guide plate.

[0021] By adopting the technical scheme, the baffle is provided, when the excess material falls on the guide plate, the excess material is further guided, so that the excess material falls more into the discharging plate, when the guide plate is not used, the driving assembly drives the sliding block to move upwards, the sliding seat abuts against the inclined surface to push the guide plate to turn away from the pressing block, so that the guide plate enters the sliding seat, and the situation that the baffle is clamped by the sliding seat is reduced.

[0022] Optionally, the driving assembly includes a gear one and a gear two rotatably connected to the sliding seat, a tension chain tensioned on the outer sides of the gear one and the gear two, and a driving piece four provided on the sliding seat, and the gear one and the gear two are engaged with the tension chain, the driving piece four drives the gear one to rotate, and the tension chain is connected with the sliding block.

[0023] By adopting the technical scheme, the driving piece four drives the gear one to rotate, the gear one drives the sliding block to move through the engagement with the tension chain, the space requirement is small, the volume of the sliding seat can be reduced, and the manufacturing cost is reduced.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] 1. When the cutter moves downward to cut the excess material, the pressing block is used to press the excess material on the workpiece, the situation that the excess material splashes at the moment of cutting is reduced, the damage and injury caused by the splashing of the excess material to the machine elements and the operator are reduced, and the safety during cutting of the excess material is improved.

[0026] 2. When the cutting knife cuts off the excess material, the side knife divides the excess material into several segments, the driving member three drives the piston to move away from the through groove, thereby adsorbing the several segments of excess material to the briquetting piece, drives the cutting knife to move up when the driving member two drives the cutting knife to move up, and then the driving assembly drives the sliding block to move down so that the guide plate extends out of the sliding seat, the guide plate is inclined to the direction of approaching the briquetting piece under the action of the elastic member two, then the driving member three drives the piston to move close to the through groove, so that the adsorbed excess material is separated from the briquetting piece and falls on the guide plate, and then falls into the discharging plate along the guide plate to realize discharging, without the need for the operator to put his hand into the equipment to clean the excess material, thereby improving the safety of cleaning the excess material;

[0027] 3. By setting the elastic sheet and the speed reduction hole, the excess material is buffered when it falls on the guide plate, reducing the wear of the guide plate caused by the hard collision between the excess material and the guide plate, which is beneficial to prolong the service life of the guide plate, and the excess material will be clamped into the speed reduction hole and stretch the elastic sheet during the falling process along the guide plate, thereby hindering the falling of the excess material, reducing the falling speed of the excess material, and thus reducing the noise generated by the falling of the excess material on the discharging plate, having a certain noise reduction effect. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a whole schematic view of the embodiment of the present application.

[0029] Figure 2 It is a structure view of the embodiment of the present application, which is partially cut open at the sliding seat, the cutting knife and the briquetting piece, and mainly shows the structure of the driving member two.

[0030] Figure 3 It is a structure schematic view of the embodiment of the present application, which mainly shows the structure of the elastic member one.

[0031] Figure 4 It is a structure schematic view of the embodiment of the present application, which mainly shows the structure of the elastic member two. Figure 2 It is an enlarged view of A part in FIG. 6, which mainly shows the structure of the limiting part.

[0032] Figure 5 It is an enlarged view of B part in FIG. 6, which mainly shows the structure of the piston. Figure 2

[0033] Figure 6 It is a structure schematic view of the embodiment of the present application, which mainly shows the structure of the sliding block.

[0034] Figure 7 It is a structure schematic view of the embodiment of the present application, which mainly shows the structure of the driving assembly.

[0035] Figure 8 It is an enlarged view of C part in FIG. 6, which mainly shows the structure of the elastic member two. Figure 7

[0036] Figure 9 It is a structure schematic view of the embodiment of the present application, which mainly shows the structure of the elastic member two.​​Figure 7 Enlarged view of part D, mainly showing the structure of the first through hole.

[0037] Figure 10 For Figure 7 Enlarged view of part E, mainly showing the structure of the second through hole.

[0038] Explanation of reference numerals: 1, lower die seat; 2, male die; 3, upper die seat; 4, female die; 5, sliding seat; 51, sliding groove; 52, through groove; 6, sliding rail; 7, driving part one; 8, cutter; 81, main knife; 811, mounting groove; 812, limiting groove; 82, side knife; 9, driving part two; 10, pressing block; 101, pressing part; 102, limiting part; 11, elastic part one; 12, through hole; 13, elastic layer; 14, piston; 141, sliding part one; 142, sliding part two; 143, elastic part three; 15, driving part three; 16, blanking plate; 17, sliding block; 18, driving assembly; 181, gear one; 182, gear two; 183, tension chain; 184, driving part four; 19, guide plate; 20, elastic part two; 21, baffle; 211, inclined surface; 22, elastic sheet; 221, fitting part; 2211, first through hole; 222, extension part; 2221, second through hole; 23, speed reduction hole; 24, protruding column one; 25, protruding column two. DETAILED DESCRIPTION

[0039] The following will be described in detail in combination with the accompanying Figures 1-10 The application is further described in detail.

[0040] The application discloses an automobile outer plate workpiece stamping die with excess material pressing mechanism. Figure 1 The automobile outer plate workpiece stamping die with excess material pressing mechanism comprises a lower die seat 1, a male die 2, an upper die seat 3 and a female die 4.

[0041] Referring to Figure 1The lower die base 1 is slidably connected with a sliding base 5, the sliding base 5 is located between the male die 2 and the female die 4 and at one side of the male die 2 in the horizontal direction, and the sliding base 5 slides horizontally to approach or move away from the male die 2, the opposite two outer side walls of the sliding base 5 are both provided with a sliding groove 51, the length direction of the sliding groove 51 is parallel to the sliding direction of the sliding base 5, the lower die base 1 is fixed with a sliding rail 6 matched with the sliding groove 51, the number and position of the sliding rail 6 correspond to the number and position of the sliding groove 51 one by one, the sliding rail 6 is slidably connected in the sliding groove 51 along the length direction of the sliding groove 51, the sliding base 5 is slidably connected on the lower die base 1 through the cooperation with the sliding rail 6, the lower die base 1 is fixed with a driving part one 7, the piston rod of the driving part one 7 penetrates the lower die base 1 and is fixedly connected with the sliding base 5, the driving part one 7 drives the sliding base 5 to move, in the embodiment, the driving part one 7 is a gas cylinder.

[0042] Referring to Figure 1 and Figure 2 , the sliding base 5 is slidably connected with a cutter 8, the cutter 8 is located below the sliding base 5, the cutter 8 comprises a main cutter 81 and a plurality of side cutters 82, the main cutter 81 is slidably connected on the sliding base 5, when the sliding base 5 moves to be located above the male die 2, the main cutter 81 is arranged around the outer periphery of the male die 2, the sliding base 5 is fixed with a driving part two 9, the piston rod of the driving part two 9 is fixedly connected with the main cutter 81, the driving part two 9 drives the main cutter 81 to move, in the embodiment, the driving part two 9 is a gas cylinder.

[0043] Referring to Figure 1 and Figure 3 , the outer side wall of the main cutter 81 is provided with a mounting groove 811, the mounting groove 811 is located at the side of the main cutter 81 away from the male die 2, and the mounting groove 811 is arranged around the outer periphery of the main cutter 81 and penetrates the main cutter 81 downward, the plurality of side cutters 82 are located in the mounting groove 811 and are distributed in a circumferential direction around the outer periphery of the main cutter 81, and the side cutters 82 are perpendicular to the main cutter 81 and are fixedly connected with the main cutter 81, the lower end of the side cutter 82 is flush with the lower end of the main cutter 81.

[0044] Referring to Figure 3 and Figure 4The inner wall of the mounting groove 811 is provided with a limiting groove 812. The pressing block 10 is slidably arranged on the main cutter 81. The pressing block 10 comprises a pressing part 101 and a limiting part 102. The pressing part 101 is arranged in the mounting groove 811. The limiting part 102 is arranged in the limiting groove 812 and fixedly connected with the pressing part 101. The limiting part 102 is slidably arranged in the limiting groove 812. A plurality of elastic members 11 are fixedly arranged on the main cutter 81. The plurality of elastic members 11 are arranged above the pressing block 10 and evenly and spacedly distributed around the outer periphery of the main cutter 81. The opposite ends of each elastic member 11 are fixedly connected with the main cutter 81 and the pressing part 101, respectively. The elastic member 11 abuts against the pressing part 101, so that the pressing part 101 has a downward moving tendency. The limiting part 102 abuts against the lower end inner wall of the limiting groove 812. The lower end of the pressing part 101 is not higher than the lower end of the side cutter 82.

[0045] Referring to Figure 3 and Figure 5 The lower end surface of the pressing part 101 is provided with a plurality of through holes 12. Each through hole 12 is arranged between two adjacent side cutters 82. The other end of each through hole 12 penetrates the outer side wall of the pressing part 101 and the adjacent outer side wall of the punch 2 (see Figure 1 ) respectively. An elastic layer 13 is fixedly arranged at the lower end of the pressing part 101. The elastic layer 13 is arranged around the outer periphery of the through hole 12 and covers the lower end surface of the pressing part 101. In this embodiment, the material of the elastic layer 13 is rubber.

[0046] Referring to Figure 3 and Figure 5 A through groove 52 is arranged in the sliding seat 5 and arranged around the outer periphery of the pressing part 101 and communicated with the plurality of through holes 12. A piston 14 is slidably connected to the sliding seat 5. The piston 14 comprises a sliding part 141, a sliding part 142 and an elastic member 143. The sliding part 141 is slidably arranged in the sliding seat 5 and extends into the through groove 52. The sliding part 141 slides towards or away from the through groove 52. The sliding part 142 is arranged on the side of the sliding part 141 away from the through groove 52 and slidably connected to the sliding seat 5. The sliding direction of the sliding part 142 is parallel to the sliding direction of the sliding part 141. The end of the sliding part 142 away from the sliding part 141 extends out of the sliding seat 5. The elastic member 143 is arranged between the sliding part 141 and the sliding part 142. The opposite ends of the elastic member 143 are fixedly connected with the sliding part 141 and the sliding part 142, respectively. A driving member 15 is fixedly arranged on the sliding seat 5. The piston rod of the driving member 15 is fixedly connected with the sliding part 142. The driving member 15 drives the sliding part 142 to move. In this embodiment, the driving member 15 is a pneumatic cylinder.

[0047] Referring to Figure 1 and Figure 6The lower die base 1 is slidably connected with two lower blanking plates 16, the two lower blanking plates 16 are respectively located at opposite sides of the male die 2, and the lower blanking plates 16 horizontally slide close to or away from the male die 2, and the sliding seat 5 is further provided with a sliding block 17 which is located at a side of the pressing part 101 away from the main cutter 81 and above the lower blanking plates 16.

[0048] Referring to Figure 6 and Figure 7 , the sliding seat 5 is provided with a driving assembly 18, the driving assembly 18 comprises a gear one 181, a gear two 182, a tensioning chain 183 and a driving piece four 184, the gear one 181 and the gear two 182 are both rotationally connected in the sliding seat 5, and the gear one 181 and the gear two 182 are spaced apart along the vertical direction, the gear one 181 is located above the gear two 182, the rotation axes of the gear one 181 and the gear two 182 are both perpendicular to the sliding direction of the sliding block 17, the tensioning chain 183 is sleeved on the outer sides of the gear one 181 and the gear two 182 and is tensioned, and the gear one 181 and the gear two 182 are both engaged with the tensioning chain 183, the tensioning chain 183 penetrates the sliding block 17 and is fixedly connected with the sliding block 17, the driving piece four 184 is fixed on the sliding seat 5, the output shaft of the driving piece four 184 is coaxially fixed with the gear one 181, and the driving piece four 184 drives the gear one 181 to rotate, in the embodiment, the tensioning chain 183 is a chain, and the driving piece four 184 is a motor.

[0049] In actual use, the driving piece four 184 drives the gear one 181 to rotate, and the gear one 181 drives the sliding block 17 to move through the engagement with the tensioning chain 183.

[0050] Referring to Figure 6 and Figure 8 , the sliding block 17 is hingedly connected with two guide plates 19, when the sliding seat 5 is located directly above the male die 2, the two guide plates 19 are respectively located at opposite sides of the male die 2 (see Figure 1 ), and the positions of the two guide plates 19 correspond to the positions of the two lower blanking plates 16 (see Figure 1 ) one by one, each guide plate 19 is located above the corresponding lower blanking plate 16 (see Figure 1 ), the hinge axes of the guide plates 19 are parallel to the rotation axes of the gear one 181 (see Figure 7 ), and each guide plate 19 is provided with an elastic piece two 20 on the hinge axis, the opposite ends of the elastic piece two 20 are respectively abutted against the guide plate 19 and the sliding seat 5, so that the guide plate 19 has a tendency to approach the pressing part 101, when the elastic piece two 20 is in a natural state, the guide plate 19 is inclined downward in the direction of approaching the pressing part 101, and the lower end of the guide plate 19 is located above the lower blanking plate 16 (see Figure 1 ), in the embodiment, the elastic piece two 20 is a torsion spring.

[0051] Referring to Figure 6 andFigure 8 Two baffle plates 21 are fixed on each guide plate 19, and the two baffle plates 21 are located on the side of the guide plate 19 close to the material pressing part 101, and the two baffle plates 21 are respectively located on the opposite ends of the guide plate 19. An inclined surface 211 is formed on the outer side wall of each baffle plate 21, the inclined surface 211 is located at the upper end of the corresponding baffle plate 21, and the inclined surface 211 is inclined to the direction close to the hinge axis of the guide plate 19.

[0052] In actual use, when the excess material falls on the guide plate 19, the excess material is guided by the baffle plate 21, so that the excess material falls more into the discharging plate 16. When the guide plate 19 is not used, the driving assembly 18 drives the sliding block 17 to move upward, the sliding seat 5 abuts against the inclined surface 211 to push the guide plate 19 to flip away from the pressing block 10, so that the guide plate 19 enters the sliding seat 5, and the situation that the baffle plate 21 is stuck by the sliding seat 5 is reduced.

[0053] Referring to Figure 7 and Figure 9 , an elastic sheet 22 is installed on each guide plate 19, the elastic sheet 22 includes a fitting part 221 and an extension part 222, the fitting part 221 is located on the side of the guide plate 19 close to the material pressing part 101 (see Figure 6 ) and is attached to the surface of the guide plate 19. A plurality of speed reduction holes 23 are formed in each fitting part 221, and the plurality of speed reduction holes 23 are uniformly and spacedly distributed in the transverse and longitudinal directions. A plurality of protruding columns I 24 are fixed on each guide plate 19, and the plurality of protruding columns I 24 are located on the side of the guide plate 19 close to the material pressing part 101 (see Figure 6 ) and are uniformly and spacedly distributed along the hinge axis of the guide plate 19. A perforation I 2211 is formed in the fitting part 221, and the number and position of the perforation I 2211 correspond to the number and position of the protruding columns I 24, and the perforation I 2211 is provided for the protruding columns I 24.

[0054] Referring to Figure 7 and Figure 10 , the extension part 222 is located on the side of the fitting part 221 away from the hinge axis of the guide plate 19 and is fixedly connected with the fitting part 221. A perforation II 2221 is formed in the extension part 222, and the perforation II 2221 is located at the end of the extension part 222 away from the perforation I 2211. A protruding column II 25 is fixed on the sliding block 17, and the number and position of the protruding column II 25 correspond to the number and position of the guide plate 19. Each protruding column II 25 is located on the side of the sliding block 17 away from the corresponding guide plate 19, and the perforation II 2221 is provided for the protruding column II 25. In the embodiment, the fitting part 221 and the extension part 222 are integrally arranged, and the materials of the fitting part 221 and the extension part 222 are rubber.

[0055] In actual use, when the excess material falls on the guide plate 19, the excess material is abutted by the abutting part 221 to buffer the excess material, reduce the wear of the guide plate 19 caused by the hard collision between the excess material and the guide plate 19, and is beneficial to prolong the service life of the guide plate 19. The excess material will be clamped into the speed reduction hole 23 and stretch the abutting part 221 in the process of falling along the guide plate 19, thereby hindering the falling of the excess material and reducing the falling speed of the excess material, so that the noise generated by the falling of the excess material on the discharging plate 16 can be reduced, and a certain noise reduction effect is achieved.

[0056] When the elastic sheet 22 is damaged, the movable extension part 222 can make the protruding column one 24 disengage from the perforation one 2211 and the protruding column two 25 disengage from the perforation two 2221, so that the damaged elastic sheet 22 can be removed from the guide plate 19. Then, a new elastic sheet 22 is taken, the protruding column one 24 is threaded through the perforation one 2211, the extension part 222 is passed around the lower end of the guide plate 19, the protruding column two 25 is threaded through the perforation two 2221, and the protruding column one 24 abuts against the inner wall of the perforation one 2211 and the protruding column two 25 abuts against the inner wall of the perforation two 2221, so that the replacement of the elastic sheet 22 can be realized.

[0057] The implementation principle of the automobile outer plate workpiece stamping die with the excess material pressing mechanism in the embodiment of the application is as follows:

[0058] When the workpiece stamping is completed, the upper die holder 3 moves upwards to drive the concave die 4 to disengage from the workpiece, then the control driving part one 7 drives the sliding seat 5 to move close to the convex die 2, so that the sliding seat 5 is located directly above the convex die 2, the control driving part two 9 drives the main cutter 81 to move downwards, the pressing part 101 abuts against the workpiece to limit the excess material part on the workpiece, then the side cutter 82 continues to move downwards to cut off the excess material part, the excess material part on the workpiece is pressed by the pressing part 101, which reduces the splashing of the excess material at the moment of cutting, thereby reducing the damage and injury to the operating machine elements and operating personnel caused by the splashing of the excess material, and improving the safety during cutting of the excess material.

[0059] When the cutting knife 8 cuts off the excess material, the side knife 82 divides the excess material into several sections, the driving member three 15 drives the sliding part two 142 to move away from the through groove 52, the sliding part two 142 pulls the sliding part one 141 to move away from the through groove 52 through the elastic member three 143, the air pressure in the through groove 52 becomes smaller, thereby adsorbing the several sections of excess material onto the pressing part 101, the elastic layer 13 increases the sealing between the pressing part 101 and the excess material, when the driving member two 9 drives the main knife 81 to move upwards, the several sections of excess material are driven to move upwards through the pressing part 101, then the blanking plate 16 is moved close to the convex die 2, the slide block 17 is driven to move downwards by the driving assembly 18, so that the guide plate 19 extends out of the slide base 5, the guide plate 19 is flipped under the action of the elastic member two 20, so that the guide plate 19 is inclined downward towards the pressing part 101, then the driving member three 15 drives the sliding part two 142 to move close to the through groove 52, the air pressure in the through groove 52 becomes larger, thereby pushing the several sections of excess material away from the pressing block 10, the excess material falls onto the guide plate 19 and falls into the blanking plate 16 along the guide plate 19 to realize discharging, without the need for the operator to explore into the inside of the equipment to clean the excess material, the safety of cleaning the excess material is improved.

[0060] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: all equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A stamping die for automotive outer panel parts with a blanking mechanism, comprising a lower die base (1), a punch (2) disposed on the lower die base (1), an upper die base (3), and a die (4) disposed on the upper die base (3), characterized in that: A slide block (5) is slidably connected to the lower die base (1). The slide block (5) is located between the punch (2) and the die (4) and is located on one side of the punch (2) in the horizontal direction. The slide block (5) slides closer to or away from the punch (2). The lower die base (1) is provided with a driving component (7) for driving the slide block (5) to move. A cutter (8) slides up and down on the slide block (5). There is a pressure block (10), which is located on the side of the cutter (8) away from the punch (2). The cutter (8) is provided with an elastic element (11), which abuts against the pressure block (10), so that the pressure block (10) has a downward tendency, and the lower end of the pressure block (10) is not higher than the lower end of the cutter (8). The slide (5) is provided with a driving element (9) for driving the cutter (8) to move. A blanking plate (16) is slidably connected to the lower die base (1). The blanking plate (16) slides closer to or further away from the punch (2). The cutter (8) includes a main cutter (81) that slides and rises on the slide block (5) and a plurality of side cutters (82) provided on the main cutter (81). An elastic element (11) is provided on the main cutter (81). The plurality of side cutters (82) are located on the side of the main cutter (81) away from the punch (2) and are distributed along the outer periphery of the main cutter (81). A plurality of through holes (12) are provided on the pressure block (10). The through hole (12) is located between adjacent side blades (82). The lower end of the pressure block (10) is provided with an elastic layer (13). The slide (5) is provided with a through groove (52). The through groove (52) and the through hole (12) are connected. A piston (14) is slidably connected to the slide (5). The piston (14) extends into the through groove (52) and slides closer to or away from the through groove (52). The slide (5) is provided with a driving member three (15). The driving member three (15) drives the piston (14) to move. The slide block (5) also has a slider (17) that slides up and down. The slider (17) is located on the side of the pressure block (10) away from the cutter (8). The slide block (5) is provided with a drive assembly (18) that drives the slider (17) to move. The slider (17) is hinged with a guide plate (19). The hinge axis of the guide plate (19) is provided with an elastic element (20). The elastic element (20) abuts against the slide block (5), so that the guide plate (19) tends to move closer to the pressure block (10). When the elastic element (20) is in its natural state, the guide plate (19) tilts downward toward the pressure block (10), and the lower end of the guide plate (19) is located above the feed plate (16).

2. The stamping die for automotive outer panel parts with a blanking mechanism according to claim 1, characterized in that: The piston (14) includes a sliding part one (141) and a sliding part two (142) slidably connected in the slide block (5) and an elastic member three (143) disposed between the sliding part one (141) and the sliding part two (142). The sliding part one (141) extends into the through groove (52), and the driving member three (15) drives the sliding part two (142) to move.

3. The stamping die for automotive outer panel parts with a blanking mechanism according to claim 1, characterized in that: The guide plate (19) is provided with an elastic sheet (22), which is located on the side of the guide plate (19) close to the pressure block (10). The elastic sheet (22) is provided with several speed reduction holes (23).

4. The stamping die for automotive outer panel parts with a blanking mechanism according to claim 3, characterized in that: The guide plate (19) is provided with a protruding post (24), and the elastic sheet (22) is provided with a through hole (2211) for the protruding post to pass through. The elastic sheet (22) is also provided with a through hole (2221). The through hole (2221) is located at the end of the elastic sheet (22) away from the through hole (2211). The slider (17) is provided with a protruding post (25). The protruding post (25) is located on the side of the slider (17) away from the guide plate (19). The through hole (2221) is for the protruding post (25) to pass through.

5. The stamping die for automotive outer panel parts with a blanking mechanism according to claim 1, characterized in that: The guide plate (19) is provided with a baffle (21), the baffle (21) is located on the side of the guide plate (19) near the pressure block (10) and at opposite ends of the guide plate (19), the baffle (21) is provided with an inclined surface (211), the inclined surface (211) is located at the upper end of the baffle (21), and the inclined surface (211) is inclined towards the guide plate (19) in a direction close to the hinge axis of the guide plate (19).

6. The stamping die for automotive outer panel parts with a blanking mechanism according to claim 1, characterized in that: The drive assembly (18) includes a gear 1 (181) and a gear 2 (182) rotatably connected to the slide (5), a tension chain (183) tensioned outside the gear 1 (181) and the gear 2 (182), and a drive member 4 (184) provided on the slide (5). The gear 1 (181) and the gear 2 (182) are both meshed with the tension chain (183). The drive member 4 (184) drives the gear 1 (181) to rotate. The tension chain (183) is connected to the slider (17).

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