CN204074961U - A pressing device for a stamping die of an outer panel of an automobile door - Google Patents

Abstract

The utility model discloses a pressing device for a stamping die for an automobile door outer panel, comprising an upper die seat, a pressing core connected to the upper die seat, a window cutter arranged on the upper die seat, and a convex die arranged on a lower die seat of the die, wherein the window cutter is embedded in the pressing core, and the pressing core has a handle groove pressing plate. The pressure device of the stamping die for an automobile door outer panel of the utility model performs stamping and forming of a sheet material through the cooperation of the pressing core and the window cutter arranged on the upper die seat and the convex die arranged on the lower die seat, so as to form an automobile door outer panel with a window and a handle installation groove, with good forming effect and high processing efficiency.

Description

A pressing device for a stamping die of an outer panel of an automobile door

technical field

The utility model belongs to the technical field of moulds. Specifically, the utility model relates to a pressing device of a punching die for an outer panel of an automobile door.

Background technique

The outer panel of the automobile door is a thin sheet stamping part that makes up the automobile body. It has the characteristics of thin material, complex shape, large structural size and high surface quality requirements.

Fig. 1 is a car door outer panel of a certain van, which has a rectangular window and a handle groove for installing a door handle. The stamping die in the prior art is not suitable for the car door outer panel of this kind of structure, so it is necessary to design a A stamping die for the stamping process of the outer panel of the car door.

Utility model content

The utility model provides a pressing device of a stamping mold for an outer panel of an automobile door, and aims at realizing the stamping and forming of the outer panel of an automobile door.

In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a pressing device for stamping dies of the outer panel of an automobile door, including an upper die base, a pressing core connected with the upper die base, The window cutter on the seat and the punch arranged on the lower mold seat of the mould, the window cutter is embedded in the pressing core, and the pressing core has a handle groove pressing plate.

The pressing core has an inner cutting edge of the upper mold through which the window cutter passes.

The punch has an inner cutting edge of the lower die into which the window cutter is inserted.

The window cutter is installed on the cutter mounting seat provided in the upper mold base.

The window cutter is a rectangular structure composed of four cutter inserts, and the inner cutting edge of the upper mold and the inner cutting edge of the lower mold are rectangular holes.

The die has a hole through which the punch passes.

The punch has a blanking channel communicating with the inner cutting edge of the lower die.

The punch has a groove for accommodating the holding device.

The pressing device of the stamping die for the outer panel of the automobile door of the utility model cooperates with the pressing core provided on the upper mold base, the window cutter and the punch provided on the lower mold base to press and form the sheet material to form a The door outer panel with window and handle installation groove has good forming effect and high processing efficiency.

Description of drawings

This manual includes the following drawings, the contents shown are:

Fig. 1 is a structural schematic diagram of an automobile door outer panel;

Fig. 2 is the structural representation of the stamping die that adopts the utility model pressing device;

Fig. 3 is the top view of stamping die;

Fig. 4 is a schematic structural view of the stamping die after removing the upper mold base;

Fig. 5 is a schematic diagram of the mold structure after removing components such as the pressing core on the basis of Fig. 4;

Fig. 6 is the structural representation of upper mold base;

Fig. 7 is a schematic structural view of the pressing core;

Fig. 8 is the structural representation of punch;

Fig. 9 is a schematic diagram of the connection between the window cutter and the upper mold base;

Fig. 10 is a schematic diagram of the connection between the supporting device and the punch;

Fig. 11 is a top view of the supporting device and the lower mold base;

Fig. 12 is a schematic diagram of the position of the discharge plate inside the lower mold base;

Fig. 13 is a schematic structural view of the material holding device;

Fig. 14 is the structural representation of feeding device;

Fig. 15 is a schematic structural view of the roller;

Fig. 16 is a schematic structural view of the through hole on the punch;

Labeled in the figure:

1. The first unloading plate; 2. The second unloading plate; 3. The upper mold seat; 31. The first groove; 32. The cutter mounting seat; 33. The punch mounting seat; 4. The lower die seat; 41 , the first channel; 42, the second channel; 43, the third channel; 44, the fourth channel; 5, the pressing core; 51, the inner cutting edge of the upper mold; 6, punch; 61, inner edge of lower die; 62, second groove; 63, third groove; 64, fourth groove; 65, fifth groove; 66, sixth groove; 7, Supporting device; 71. Supporting cylinder; 72. Mounting plate; 73. Support plate; 74. Supporting frame; 75. Supporting block; 76. Limiting block; 77. Anti-rotation rod; 78. Guide sleeve; 8 , feeding device; 81, upper bracket; 82, lower bracket; 83, upper support rod; 84, lower support rod; 85, adjusting bolt; 86, roller; 861, contact area; 862, circular arc; 9, window cutter ;91, cutting knife insert; 10, trimming knife block; 11, the third unloading plate; 12, the fourth unloading plate; 13, unloading screw; 14, nitrogen spring; 15, the first punch; 16 , the second punch; 17, the jacking cylinder; 18, the buffer; 19, the guide post; 20, the fifth unloading plate; 21, the waste box; 22, the bushing; 23, the pin.

Detailed ways

Next, with reference to the accompanying drawings, through the description of the embodiments, the specific implementation of the present utility model will be further described in detail, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present utility model , and contribute to its implementation.

As shown in Fig. 2 to Fig. 15, a kind of automobile door outer panel stamping die adopting the pressing device of the utility model is used for stamping and forming the sheet material to make the automobile door outer panel with the structure shown in Fig. 1 . The stamping die includes a lower mold base 4 , a pressing device, a supporting device 7 and a feeding device 8 . The pressing device includes an upper mold base 3, a pressing core 5 connected with the upper mold base 3, a window cutter 9 arranged on the upper mold base 3, a punch 6 and a window cutter 9 arranged on the lower mold base 4 Embedded in the pressing core 5, the window cutter 9 cooperates with the pressing core 5 and the punch 6 to complete the removal of window waste. The binder core 5 also has a handle groove binder plate 53, which cooperates with the corresponding profile on the punch 6 to complete the stamping of the handle installation groove.

Specifically, the upper end of the window cutter 9 is fixedly connected with the upper mold base 3, and the lower end can pass through the pressing core 5 and cut into the punch 6. Correspondingly, as shown in Figures 7 and 8, the pressing core 5 has Let the window cutter 9 pass through the upper mold inner edge 51, and the punch 6 has the lower mold inner edge 61 where the window cutter 9 is inserted. The window on the outer panel of the car door of the van as shown in Figure 1 is a rectangle, and the window cutter 9 is a rectangular structure, and the inner cutting edge 51 of the upper mold and the inner cutting edge 61 of the lower mold are rectangular holes, and the inner cutting edge 51 of the upper mold is along the vertical direction. The direction runs through the binder core 5, and the inner cutting edge 61 of the lower die runs through the punch 6 along the vertical direction.

As shown in FIG. 6 , the upper mold base 3 is provided with a first groove 31 for accommodating the binder core 5 , and a guide plate is provided on the outside of the binder core 5 to contact the inner wall of the first groove 31 . As shown in FIG. 4 , the pressing core 5 is slidingly connected with the upper die base 3 through a plurality of unloading screws 13 , and a plurality of nitrogen springs 14 are also arranged between the upper die base 3 and the pressing core 5 .

As shown in Figures 6 and 9, a cutter mounting seat 32 for installing a window cutter 9 is provided in the first groove 31 of the upper mold base 3, and the cutter mounting seat 32 is fixedly arranged in the first groove 31 on the inner top wall, and two cutter mounts 32 are arranged side by side along the width direction of the first groove 31, a certain distance is spaced between the two cutter mounts 32, and the window cutter 9 is fixed by bolts. Be installed on the bottom surface of two cutter mounts 32. A dividing plate 52 is also arranged in the cutting edge 51 of the upper die, and the dividing plate is inserted in the gap between the two cutter mounts 32 .

As preferably, as shown in Figure 9, the window cutter 9 is a rectangular structure composed of four cutter inserts 91, and the four cutter inserts 91 are opposite to each other in pairs, arranged along the width direction of the first groove 31 The two cutter inserts 91 straddle the two cutter mounts 32 and are fixed by bolts. The two cutter inserts 91 arranged along the length direction of the first groove 31 are mounted on one cutter mount 32 respectively. Fastened by bolts. The pressing device adopts the window cutter 9 composed of four cutter inserts 91, which is simple in structure and easy to manufacture, and when the window cutter 9 is partially damaged, the corresponding damaged cutter insert 91 can be replaced without the need for overall replacement ,save costs.

The stamping die also includes a punch for punching the sheet metal, and the punch is installed on the upper die base 3 . Three holes need to be punched out on the outer panel of the car door, which are two lock holes at the handle mounting groove and a hole between the handle mounting groove and the window, and three punches are correspondingly provided on the upper die base 3, As shown in FIGS. 5 and 10 , the three punches are a first punch 15 and two second punches 15 . As shown in Figure 6, three punch mounts 33 for installing the punch are arranged in the first groove 31 of the upper die base 3, and the punch mounts 33 are fixedly arranged in the first groove 31. On the top wall, on one side of the cutter mounting seat 32, three punches are installed on the bottom surface of a punch mounting seat 33 respectively. The first punch 15 and the second punch 15 are used for punching round holes, correspondingly on the blanking core 5 and punch 6 corresponding to the positions of the three punches, there are through holes for the punches to pass through.

As a modification, the bottom of each punch on the upper die base 3 can also be provided with a concave hole. The concave hole is a hole formed by indenting from the bottom surface of the punch axially toward the inside of the punch. The concave hole can make the punch punch press The force surface is greatly reduced, prolonging the service life of the punch. In addition, arc-shaped edges are provided on the bottom edge of each punch, so that the punch and the stamped metal sheet are in flexible contact, and sharp edges are avoided at the holes punched out on the outer panel of the automobile door.

As shown in Figure 16, as a preference, an annular bushing 22 is also provided in each of the three through holes aligned with each punch on the punch 6, and the bushing 22 is embedded in the through hole. The sleeve 22 is reliably fixed, and a pin 23 is inlaid between the bush 22 and the inner wall of the through hole. The pin 23 makes the bush 22 tightly fit with the through hole, which can prevent the bush 22 from slipping.

As shown in Fig. 2 and Fig. 4, on the bottom surface of upper mold base 3, be provided with a circle trimming knife block 10 around binder core 5, trimming knife block 10 is connected with the edge of binder core 5 and punch 6 Cooperate, trim the edge of the sheet during stamping. As shown in Fig. 4 and Fig. 5, a plurality of trimming knife blocks 10 on the upper die base 3 are provided with upper die waste knives, and the upper die waste knives and trimming knife blocks 10 are integrated, corresponding on the lower die base 4 A lower mold scrap knife is arranged at the position of each upper mold scrap knife, and the upper mold scrap knife cooperates with the lower mold scrap knife to cut off the whole waste falling on the scrap knife.

As shown in Fig. 2, Fig. 11 and Fig. 12, a plurality of unloading plates for unloading waste materials are provided on the lower mold base 4, specifically including the first unloading plate 1, the second unloading plate 2, the third unloading plate Plate 11 and a fourth stripper plate 12. The first unloading plate 1 is provided with two, and the two first unloading plates 1 are arranged on the lower mold base 4 in a downwardly inclined state, and are located on both sides of the punch 6, below the waste knife of the lower mold, Make the scrap that falls on both sides of punch 6 can slide down. The 3rd unloading plate 11 is provided with two, and the 3rd unloading plate 11 is the thin plate of elongated shape, and the 3rd unloading plate 11 is arranged at one end of punch 6, and two 3rd unloading plate 11 are symmetrically distributed on The both sides of the waste knife of the lower mold located in the middle position of the width direction of the punch 6 are respectively inclined towards the setting of the waste knife both sides of the lower mold, so that the waste material falling at the end of the punch 6 can slide down. The fourth unloading plate 12 is provided with two, and the fourth unloading plate 12 is also a strip-shaped thin plate. The fourth unloading plate 12 is arranged at the other end of the punch 6, and the two fourth unloading plates 12 are symmetrical. Distributed on both sides of the waste knife of the lower mold at the middle position in the width direction of the punch 6, and are respectively inclined towards the lower side of the waste knife of the lower mold, so that the waste falling at the end of the punch 6 can be downward slide.

As shown in Figure 11, a first channel 41 for blanking is provided at the position corresponding to the inner edge 61 of the lower mold of the punch 6 on the lower mold base 4, and the first channel 41 communicates with the inner edge 61 of the lower mold. The second unloading plate 2 is inserted into the lower mold base 4 at a position below the first channel 41 for receiving the scrap cut by the window cutter 9 . The second unloading plate 2 is inclined downwards and extends towards the outside of the end of the lower mold base 4, so that the received waste materials can slide down.

As shown in Fig. 11 and Fig. 12, a second channel 42 and a third channel 43 are provided at positions corresponding to the first punch 15 and the second punch 15 on the lower die base 4, and the second channel 42 is located on the punch 6 Below the through hole corresponding to the first punch 15, and in the lower mold base 4, a waste box 21 located below the second passage 42 is provided, and the waste cut by the first punch 15 falls into the waste box 21 through the second passage 42 Inside. The third channel 43 is located below the two through holes corresponding to the two second punches 15 on the punch 6 , and the fifth unloading plate 20 located below the third channel 43 is provided in the lower die base 4 . The fifth unloading plate 20 is adjacent to the waste box 21, and the fifth unloading plate 20 extends obliquely downward towards the waste box 21. The lower end of the fifth unloading plate 20 is positioned above the waste box 21, and the first The scrap cut by the punch 15 is conveyed into the scrap box 21 .

As shown in Figure 5, two guide posts 19 are respectively provided in the chute at both ends of the lower die base 4, and guide posts 19 are inserted on the sliders inserted into the chute at both ends of the upper die base 3. hole. Also be respectively provided with two buffers 18 at the two ends of lower mold base 4, buffers 18 can adopt spring; Also can install spring in sleeve, spring upper end installs top block, be provided with between buffers 18 and guide post 19 Stop block, the height of stop block is lower than buffer 18.

As shown in Figures 10 and 13, the supporting device 7 of the stamping die includes a mounting plate 72 arranged on the lower mold base 4, a supporting cylinder 71 arranged on the mounting plate 72, connected with the supporting cylinder 71 and supported by the supporting material. Cylinder 71 provides the supporting frame 74 of the driving force, the supporting block 75 arranged on the supporting frame 74, and the limiting block 76 arranged on the mounting plate 72 and used for limiting, and the punch 6 is provided with a holding device 7 grooves. The supporting material cylinder 71 is vertically arranged, and the fourth passage 44 that allows the supporting material cylinder 71 to pass is provided on the lower die base 4, and the mounting plate 72 is fixed on the top surface of the lower die base 4 by bolts, and the mounting plate 72 is a strip The plate, whose length direction is parallel to the length direction of the punch 6, is located at the center of the width direction of the punch 6. The upper end of the supporting cylinder 71 is inserted into the punch 6, as shown in 8, the punch 6 is provided with a second groove 62, a third groove 63, a fourth groove 64, a fifth groove 71 to accommodate the supporting cylinder 71 The groove 65 and the sixth groove 66, the third groove 63 and the fifth groove 65 are located on the same side of the second groove 62, and the fourth groove 64 and the sixth groove 66 are located on the other side of the second groove 62. On one side, the third groove 63 is located between the cutting edge 61 and the fifth groove 65 in the lower mold, the fourth groove 64 is located between the cutting edge 61 and the sixth groove 66 in the lower mold, and the second groove 62 places and be provided with the through hole that runs through the bottom wall, the side plate between the 3rd groove 63, the 4th groove 64, the 5th groove 65 and the 6th groove 66 and the 2nd groove 62 and be provided with usefulness to the connected opening.

As shown in Fig. 10 and Fig. 13, the piston rod of the supporting material cylinder 71 is provided with a supporting plate 73 parallel to the mounting plate 72, the supporting plate 73 is a strip plate, and the supporting plate 73 is fixed with the piston rod of the supporting material cylinder 71. connect. Two brackets 74 are provided, and the two brackets 74 are parallel and are respectively arranged at one end of the support plate 73 . The support plate 73 is located in the second groove 62, and among the two brackets 74, the bracket 74 near the cutting edge 61 in the lower mold is located in the third groove 63, the fourth groove 64 and the second groove. In the space formed by 62, the bracket 74 away from the cutting edge 61 in the lower mold is located in the space formed by the fifth groove 65, the sixth groove 66 and the second groove 62, and the bracket block 75 is installed on the bracket on the top of the frame 74. The supporting cylinder 71 can push the support plate 73 and the supporting frame 74 to move upwards in the vertical direction, and the supporting block 75 is in contact with the sheet material above, which can ensure that the sheet material is stable, and after the punching operation is completed, the outer panel of the car door is supported. The lifting is smooth and smooth, without causing damage to the workpiece, and it is also convenient to take out the material.

As preferably, as shown in Figure 13, the bracket 74 is T-shaped, and the middle part extension end of the bracket 74 is fixedly connected with the end of the support plate 73, and the brackets 75 are respectively arranged on the other side of the bracket 74. ends. The supporting block 75 is pushed by the supporting frame 74 to the ejecting position and then contacts with the part of the plate that needs to be ejected to complete the ejection process. The shape of the supporting block 75 is designed to be consistent with the shape of the ejected part to ensure ejection During the process, this part of the sheet is evenly stressed, and the ejection process is successfully completed.

As shown in Figure 13, the material holding device 7 also includes an anti-rotation rod 77 which is arranged on the supporting plate 73 and is parallel to the piston rod of the material holding cylinder 71, and a guide for allowing the anti-rotation rod 77 to be inserted is also provided on the mounting plate 72. Set of 78. The inside of guide sleeve 78 is provided with a through hole, and the upper end of anti-rotation rod 77 is fixedly connected with support plate 73. Anti-rotation rod 77 is a round rod, and the through hole in guide sleeve 78 is a round hole. During the upward movement, the anti-rotation rod 77 moves upward together with the support plate 73 , and keeps the movement stable under the guidance of the guide sleeve 78 .

Preferably, as shown in FIG. 13 , there are two anti-rotation rods 77 and two guide sleeves 78 respectively, and the two anti-rotation rods 77 are respectively connected to one end of the support plate 73 . The two anti-rotation rods 77 and the guide sleeve 78 together with the piston rod ensure that the support plate 73 has no position to rotate during the upward movement.

As shown in FIG. 13 , there are also two limiting blocks 76 , and each limiting block 76 is respectively located between an anti-rotation rod 77 and the piston rod of the supporting cylinder 71 . The limit block 76 is arranged vertically and is located between the support plate 73 and the installation plate 72, and is used for limiting the position when the support plate 73 goes down.

As shown in Figure 10, two jacking cylinders 17 for jacking are also provided in the punch 6, and the two jacking cylinders 17 are respectively arranged in the fourth groove 64 of the punch 6 and the fifth groove. 65 in another adjacent groove. The jacking cylinder 17 cooperates with the material supporting device 7, in order to facilitate taking out the door outer panel after stamping is completed, it is necessary to unload by means of a jacking device.

As shown in Figures 14 and 15, the feeding device 8 of the stamping die includes an upper bracket 81, a lower bracket 82 arranged on the lower mold base 4 and a height adjustment mechanism arranged between the upper bracket 81 and the lower bracket 82, the upper bracket 81 It is elongated, and it extends toward the outside of the lower mold base 4 along the horizontal direction, and the end of the upper bracket 81 away from the lower mold base 4 is slightly inclined downwards, and the upper bracket 81 is also provided with a roller 86, the roller 86 It is used for contacting with the sheet material, and the sheet material slides on the sliding surface formed by the roller 86, and can enter the punch 6 very conveniently.

The feeding device 8 is provided with a height adjustment mechanism to adjust the height of the upper bracket 81 . As shown in Figure 14, the height adjustment mechanism includes an upper support rod 83 vertically arranged on the upper support 81 and a lower support rod 84 sleeved on the upper support rod 83 and connected with the lower support 82, the upper support rod 83 and the lower support rod 84 is provided with connecting holes along the length direction, and the upper support rod 83 and the lower support rod 84 are connected through the connection holes by adjusting bolts 85 . Upper support bar 83 and lower support bar 84 adopt square tube to make, and lower support bar 84 is fixedly installed on the side of lower support 82 along vertical direction, and upper support bar 83 is inserted in the lower support bar 84 along vertical direction, and upper support bar 83 The upper end is fixedly connected with upper bracket 81. The upper support rod 83 is provided with a plurality of connection holes along the length direction, and one or more connection holes can be provided on the lower support rod 84 . The adjusting bolt 85 has a handle. When the height of the upper bracket 81 needs to be adjusted, the adjusting bolt 85 is loosened. Can.

As shown in FIG. 14 , multiple rollers 86 are provided on the upper bracket 81 along the length direction of the upper bracket 81 , and the axes of the rollers 86 are located in the horizontal plane.

As preferably, as shown in Figure 15, the two ends edges of roller 86 are arc-shaped, and the cross-section of the both sides of roller 86 is arc 862, and the radius of curvature of contact zone 861 that roller 86 contacts with sheet material is R25mm- R40mm, the rotary section line of the roller 86 is a rounded shape of a large arc. In use, its part manufacturing precision/mold assembly error does not affect the approximate spherical contact state between the roller 86 and the sheet material, and the actual contact area 861 has a radius of curvature of about R25-R40, so that the radius of curvature of the contact area with the sheet material becomes larger, thereby Greatly reduce its scratches on the sheet.

As shown in Figure 3, the feeding device 8 is arranged on both sides of the lower mold base 4, and each side of the lower mold base 4 is respectively provided with two feeding devices 8, and the two feeding devices 8 are respectively located on the sides of the first unloading plate 1. ends. When the mold needs to be fed, the feeding device 8 can support the sheet material, so that the sheet material can enter the mold on either side of the lower mold base 4. After the stamping is completed, the feeding device 8 can be used to slide and take materials easily.

The utility model has been exemplarily described above in conjunction with the accompanying drawings. Apparently, the specific implementation of the present invention is not limited by the above methods. As long as the various insubstantial improvements made by adopting the method concept and technical solution of the present utility model; within the scope of protection.

Claims (8)

1. the material pressing device of an external board of vehicle door diel, comprise upper bolster, it is characterized in that: also comprise the material pressing core be connected with described upper bolster, the punch being located at the window cutting knife on upper bolster and being located on the die shoe of mould, window cutting knife embeds binder in-core, and material pressing core also has handle slot holding pad.

2. the material pressing device of external board of vehicle door diel according to claim 1, is characterized in that: described material pressing core has the patrix inner cutter hole allowing described window cutting knife pass.

3. the material pressing device of external board of vehicle door diel according to claim 1 and 2, is characterized in that: described punch has the counterdie inner cutter hole allowing described window cutting knife insert.

4. the material pressing device of external board of vehicle door diel according to claim 3, is characterized in that: described window cutting knife is arranged on cutting knife mount pad set in described upper bolster.

5. the material pressing device of external board of vehicle door diel according to claim 4, is characterized in that: described window cutting knife is the rectangular configuration be made up of four pieces of cutting knife inserts, and described patrix inner cutter hole and described counterdie inner cutter hole are rectangular opening.

6. the material pressing device of external board of vehicle door diel according to claim 5, is characterized in that: described material pressing core has the hole allowing drift pass.

7. the material pressing device of external board of vehicle door diel according to claim 6, is characterized in that: described punch has the blanking channel be communicated with described counterdie inner cutter hole.

8. the material pressing device of external board of vehicle door diel according to claim 7, is characterized in that: described punch has the groove holding described material-supporting device.