CN110860606A - Automobile tail door inner plate drawing die - Google Patents
Automobile tail door inner plate drawing die Download PDFInfo
- Publication number
- CN110860606A CN110860606A CN201810986892.5A CN201810986892A CN110860606A CN 110860606 A CN110860606 A CN 110860606A CN 201810986892 A CN201810986892 A CN 201810986892A CN 110860606 A CN110860606 A CN 110860606A
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- China
- Prior art keywords
- positioning
- plate
- material supporting
- workpiece
- automobile tail
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
Abstract
The invention discloses an automobile tail door inner plate drawing die which comprises an upper die plate, a lower die plate, a blank holder, a forming device, a first positioning device and a second positioning device, wherein the first positioning device comprises a first positioning base arranged on the blank holder, a first positioning plate vertically arranged on the first positioning base and used for positioning a workpiece, a material supporting frame rotatably arranged on the first positioning plate, and a buffer arranged below the material supporting frame and used for buffering the material supporting frame, the rotation center line of the material supporting frame is positioned in a horizontal plane, the first positioning plate is provided with a positioning surface used for contacting the workpiece, and the positioning surface is an arc surface, and the axis of the positioning surface is parallel to the rotation center line of the material supporting frame. According to the drawing die for the inner plate of the automobile tail door, the material supporting and positioning functions of the positioning device are integrated, the positioning device is compact in overall structure and small in occupied space, arrangement on the blank holder is convenient, and cost is reduced.
Description
Technical Field
The invention belongs to the technical field of dies, and particularly relates to an automobile tail door inner plate drawing die.
Background
The shape of the inner plate of the automobile tail door is generally large in undulation, a material supporting and arc-shaped positioning tool is usually used on a drawing die during drawing processing, and due to the fact that the undulation of the inner plate of the tail door is large, in order to ensure that the precision of a manufactured plate meets the requirement, various positioning tools need to be arranged on the drawing die to position the inner plate of the tail door. However, because the drawing die is very compact, the situation that the positioning device cannot be placed and a plurality of positioning devices can leave large abdications on the upper die often occurs. In addition, in actual production, the accurate position is often difficult to find due to a large number of positioning devices, so that the debugging period of the plate is influenced, and the machining precision of the plate is influenced.
Disclosure of Invention
The invention provides a drawing die for an inner plate of an automobile tail door, and aims to facilitate the arrangement of a positioning device.
In order to achieve the purpose, the invention adopts the technical scheme that: the drawing die for the inner plate of the automobile tail door comprises an upper die plate, a lower die plate, a blank holder and a forming device which are arranged on the lower die plate, and a first positioning device and a second positioning device which are arranged on the blank holder, wherein the first positioning device comprises a first positioning base arranged on the blank holder, a first positioning plate vertically arranged on the first positioning base and used for positioning a workpiece, a material supporting frame rotatably arranged on the first positioning plate, and a buffer arranged below the material supporting frame and used for buffering the material supporting frame, the rotation center line of the material supporting frame is positioned in the horizontal plane, the first positioning plate is provided with a positioning surface used for contacting the workpiece, and the positioning surface is an arc surface, and the axis of the positioning surface is parallel to the rotation center line of the material supporting frame.
First locating plate includes last supporting part, first location portion and the lower supporting part that sets gradually along vertical direction, the work or material rest is rotatable to be set up on last supporting part, and the surface of the face of first location portion towards the work piece does the locating surface, the width of first location portion is for starting to the lower extreme from the upper end and progressively enlarges.
The upper end of first location portion with go up supporting part fixed connection, the lower extreme of first location portion with lower supporting part fixed connection, the lower support portion with first locating base fixed connection, the buffer sets up on first location portion and the buffer passes through the bolt and is connected with first location portion.
The material supporting frame comprises a material supporting rod rotatably connected with the first positioning plate, a turning seat connected with the material supporting rod and a first balancing weight arranged on the turning seat, and the turning seat and the first balancing weight are positioned on the same side of the first positioning plate. The material supporting rods are arranged in parallel, the material supporting rods are fixedly connected with the overturning seat, the two material supporting rods extend out towards the same side of the overturning seat, and the first positioning plate is positioned between the two material supporting rods.
The buffer comprises a buffer seat and a buffer block arranged on the buffer seat and used for being in contact with the overturning seat, wherein the buffer block is located below the overturning seat and is made of a soft material.
The buffer block is made of polyurethane.
The second positioning device comprises a second positioning base arranged on the blank holder, a guide plate and an inductor which are arranged on the second positioning base, a sensing block and a rocker which are rotatably arranged on the second positioning base, and a second positioning plate which is rotatably connected with the sensing block and the rocker and is used for positioning a workpiece, wherein the second positioning plate is provided with a positioning surface used for contacting the workpiece, and the axis of the positioning surface is an arc surface and is positioned in the horizontal plane.
The second positioning plate comprises a second positioning part and a connecting rod connected with the second positioning part, the connecting rod is rotatably connected with the rocker and the sensing block, and the surface of the second positioning part facing the workpiece is a positioning surface used for contacting with the workpiece.
The second positioning device further comprises a second balancing weight arranged on the induction block.
The forming device comprises a bottom plate, a sliding seat which can be movably arranged along the vertical direction, a forming block arranged on the sliding seat and a plurality of elastic elements which are arranged on the bottom plate and used for applying elastic acting force to the sliding seat.
According to the drawing die for the inner plate of the automobile tail door, the material supporting and positioning functions of the positioning device are integrated, the positioning device is compact in overall structure and small in occupied space, arrangement on the blank holder is convenient, and cost is reduced.
Drawings
The description includes the following figures, the contents shown are respectively:
FIG. 1 is a schematic structural diagram of an automobile tail door inner plate drawing die of the invention;
FIG. 2 is a schematic view of a partial structure of the automobile tail gate inner plate drawing die of the invention;
FIG. 3 is a schematic view of a first positioning device;
FIG. 4 is a schematic view of the connection of the first positioning plate, the bumper and the first positioning base;
FIG. 5 is a schematic view of the structure of the material holder;
FIG. 6 is a schematic view of a second positioning device;
FIG. 7 is a schematic view of the second positioning device at another angle;
FIG. 8 is a partial schematic view of a second positioning device;
FIG. 9 is a schematic view of the structure of the forming apparatus;
labeled as: 1. a buffer seat; 2. a buffer block; 3. positioning the bottom plate; 4. a support plate; 5. a first positioning plate; 501. an upper support section; 502. a first positioning portion; 503. a lower support section; 504. a first positioning surface; 6. a material supporting frame; 601. a material supporting rod; 602. a turning seat; 603. a first weight block; 7. a first rotating shaft; 8. a second positioning device; 801. a second positioning base; 802. a guide plate; 803. an inductor; 804. a rocker; 805. a second positioning portion; 806. a connecting rod; 807. a second counterweight block; 808. an induction block; 809. a second rotating shaft; 810. a third rotating shaft; 811. a fourth rotating shaft; 812. a fifth rotating shaft; 9. a forming device; 901. a base plate; 902. a sliding seat; 903. an elastic element; 904. forming a block; 10. mounting a template; 11. a lower template; 12. and (7) a blank holder.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.
As shown in fig. 1 to 5, the invention provides an automobile tail gate inner plate drawing die, which comprises an upper die plate 10, a lower die plate 11, a blank holder 12, a forming device 9, a male die (not shown in the figure), a first positioning device and a second positioning device 8, wherein the upper die plate 10 is arranged horizontally, the blank holder 12 is arranged on the lower die plate 11, the male die (not shown in the figure) is arranged on the lower die plate 11 and has the same shape as an automobile tail gate inner plate, the first positioning device is arranged on the blank holder 12, the second positioning device is arranged on the blank holder 12, the upper die plate 10 can move in the vertical direction relative to the lower die plate 11, the blank holder 12 is arranged between the upper die plate 10 and the lower die plate 11, and the blank holder. The male die is positioned below the upper die plate 10, the blank holder 12 is sleeved on the male die, a female die cavity matched with the male die is arranged on the working surface of the upper die plate 10, the male die and the forming device 9 are matched with the female die cavity of the upper die plate 10 to draw and form a workpiece to form the automobile tail door inner plate, and the forming surfaces of the male die and the female die cavity are the same as the shape of the automobile tail door inner plate.
Specifically, as shown in fig. 1 and 2, the blank holder 12 is a square frame-shaped structure, and has four side frames, two adjacent side frames are perpendicular to each other, and a plurality of nitrogen springs are provided between the blank holder 12 and the lower template 11, and the nitrogen springs are used for pushing the blank holder 12 to move upward along the vertical direction. The male die is positioned at the center of the blank holder 12, four frames of the blank holder 12 are distributed around the male die, and the inner side surface of each frame of the blank holder 12 is respectively attached to the profile of one side of the male die. The first positioning devices and the second positioning devices 8 are arranged on the top surface of the blank holder 12, the first positioning devices are arranged in a plurality of rows, all the first positioning devices in each row are positioned on the same straight line parallel to the first direction, the male dies are positioned between the two rows of the first positioning devices, and the first direction is horizontal and parallel to the width direction of the blank holder 12.
As shown in fig. 2 to 5, the first positioning device includes a first positioning base disposed on the blank holder 12, a first positioning plate 5 vertically disposed on the first positioning base and used for positioning a workpiece, a material supporting frame 6 rotatably disposed on the first positioning plate 5, and a buffer disposed below the material supporting frame 6 and used for buffering the material supporting frame 6, a rotation center line of the material supporting frame 6 is located in a horizontal plane, and a rotation center line of the material supporting frame 6 is parallel to a first direction, the first positioning plate 5 has a first positioning surface 504 used for contacting the workpiece, the first positioning surface 504 is an arc surface, an axis of the first positioning surface 504 is parallel to the rotation center line of the material supporting frame 6, the workpiece is an automobile tail door inner plate, and is a sheet metal part.
As shown in fig. 2 to 5, the first positioning base is fixedly connected to the blank holder 12, the lower end of the first positioning plate 5 is fixedly connected to the positioning base, the first positioning plate 5 extends above the first positioning base, the material holder 6 is disposed at the upper end of the first positioning plate 5, the material holder 6 can rotate up and down on the first positioning plate 5, the material holder 6 is used for supporting a workpiece before drawing, and the material holders 6 on all the first positioning devices are matched with each other to keep the workpiece stable. When drawing processing is carried out, the workpiece moves downwards, the material supporting frame 6 is pushed by the workpiece to rotate downwards, the workpiece contacts the first positioning surface 504 of the first positioning plate 5 and is separated from the material supporting frame 6, the first positioning surface 504 is kept in contact with the workpiece in the drawing processing process, and the workpiece can be prevented from shaking greatly when being pressed. The first positioning device with the structure integrates the supporting and positioning functions, is compact in structure and small in occupied space, and can be conveniently arranged on the blank holder 12, and the number of the first positioning devices on the blank holder 12 is large, so that the stability and the positioning accuracy of workpieces are guaranteed.
As shown in fig. 3 and 4, the first positioning plate 5 is a flat plate, the thickness direction of the first positioning plate 5 is parallel to the rotation center line of the material support frame 6, the first positioning plate 5 includes an upper support portion 501, a first positioning portion 502 and a lower support portion 503, which are sequentially arranged along the vertical direction, the material support frame 6 is rotatably arranged on the upper support portion 501, the upper end of the first positioning portion 502 is fixedly connected with the upper support portion 501, the lower end of the first positioning portion 502 is fixedly connected with the lower support portion 503, the lower support portion 503 is fixedly connected with the first positioning base, the upper support portion 501, the first positioning portion 502 and the lower support portion 503 are both vertically arranged, the length of the first positioning portion 502 is greater than the length of the upper support portion 501 and the length of the lower support portion 503, the buffer is arranged on the first positioning portion 502, and the buffer is connected with the first positioning portion 502 through a. The first positioning surface 504 is disposed on the first positioning portion 502, a surface of the first positioning portion 502 facing the workpiece is the first positioning surface 504, a width of the first positioning portion 502 gradually increases from an upper end to a lower end, width directions of the upper support portion 501, the first positioning portion 502, and the lower support portion 503 are parallel to a second direction, the second direction is a horizontal direction, and the second direction is perpendicular to the first direction. The width directions of the upper supporting part 501, the first positioning part 502 and the lower supporting part 503 are perpendicular to the rotation center line of the material support frame 6, the width of the lower end of the first positioning part 502 is the largest, the width of the upper end of the first positioning part 502 is the smallest, the width of the upper supporting part 501 is the same as the width of the upper end of the first positioning part 502, both ends of the upper supporting part 501 in the width direction are respectively aligned with both ends of the upper end of the first positioning part 502, the side surface of the upper supporting part 501 facing the workpiece is a vertical surface and extends above the first positioning surface 504, the side surface is tangent to the first positioning surface 504 to avoid influencing the falling of the workpiece, the width of the lower supporting part 503 is the same as the width of the lower end of the first positioning part 502, both ends of the lower supporting part 503 in the width direction are respectively aligned with both ends of the lower end of the first positioning part 502, in the drawing process, the workpiece moves along the first positioning surface 504 from the upper end of the first positioning portion 502 to the lower end of the first positioning portion 502.
As shown in fig. 3 to 5, the material supporting frame 6 includes a material supporting rod 601 rotatably connected to the first positioning plate 5, an overturning seat 602 connected to the material supporting rod 601, and a first weight block 603 disposed on the overturning seat 602, where the overturning seat 602 and the first weight block 603 are located on the same side of the first positioning plate 5. In the initial state, the material supporting rod 601 is in a horizontal state, the turning seat 602 is located at the outer side of the first positioning plate 5, and the material supporting rod 601 extends to the inner side of the first positioning plate 5. The length direction of the material supporting rod 601 is perpendicular to the rotation center line of the material supporting frame 6 and parallel to the width direction of the first positioning portion 502, the material supporting rod 601 is used for supporting the workpiece, and the material supporting rod 601 extends towards the inner side of the first positioning plate 5 (the inner side is the side close to the male die) so as to ensure that the workpiece can be contacted. The material supporting rods 601 are arranged in parallel, the material supporting rods 601 are fixedly connected with the overturning seat 602, the two material supporting rods 601 extend out towards the same side of the overturning seat 602, and the first positioning plate 5 is located between the two material supporting rods 601. Have certain clearance between two support material poles 601, two support material poles 601 are installed on the last supporting part 501 of first locating plate 5 through a first pivot 7, the axis of first pivot 7 also is the rotation center line of work or material rest 6, it is located between two support material poles 601 to go up supporting part 501, it has the round hole that lets first pivot 7 pass to go up supporting part 501, this round hole is for running through the through-hole that sets up along the thickness direction on last supporting part 501, also be provided with the round hole that lets first pivot 7 pass on the support material pole 601 and this round hole is located between the ascending both ends of length direction of support material pole 601. One end of the material supporting rod 601 in the length direction is fixedly connected with the overturning seat 602, and in an initial state, one end of the material supporting rod 601 in the length direction is located on the inner side of the first positioning plate 5, so that a workpiece can be supported.
As shown in fig. 3 to 5, the turning base 602 is located between the two material supporting rods 601 and the first balancing weight 603, the first balancing weight 603 is installed on the turning base 602, and the first balancing weight 603 is disposed such that the center of gravity of the material supporting frame 6 and the first balancing weight 603 are located on the same side of the rotation center line of the material supporting frame 6, and in an initial state, the workpiece is not pressed downward, and the material supporting rods 601 can be maintained in a horizontal state under the action of the first balancing weight 603. In the drawing process, the workpiece moves downwards to offset the weight of the first balancing weight 603, the workpiece pushes the material supporting rod 601 to rotate downwards, the first balancing weight 603 and the overturning seat 602 rotate upwards, after the workpiece is separated from the material supporting rod 601, the material supporting frame 6 rotates reversely under the action of the first balancing weight 603, and finally the material supporting frame 6 returns to the horizontal state.
As shown in fig. 3 to 5, the buffer includes a buffer seat 1 and a buffer block 2 disposed on the buffer seat 1 and used for contacting with the flipping seat 602, the buffer block 2 is disposed below the flipping seat 602, the buffer block 2 is made of soft material, when the buffer block is at an initial position, the material supporting frame 6 is substantially horizontal, the buffer block 2 is disposed below the flipping seat 602, the top surface of the buffer block 2 contacts with the top surface of the flipping seat 602, and the flipping seat 602 is made of metal material. In the drawing process, when the material supporting frame 6 rotates reversely to the initial position, the soft buffer block 2 is in contact with the overturning seat 602, the material supporting frame 6 is buffered, the large impact is avoided, the first positioning device is not easy to damage, and the service life is prolonged. First positioning base is for invering T type structure, first positioning base includes positioning bottom plate 3 and the vertical backup pad 4 that sets up on positioning bottom plate 3, positioning bottom plate 3 sets up and positioning bottom plate 3 and blank holder 12 fixed connection for the level, backup pad 4 extends towards positioning bottom plate 3's top along vertical direction, backup pad 4's lower extreme and positioning bottom plate 3 fixed connection, cushion socket 1 is located the top of backup pad 4 and the bottom surface of cushion socket 1 and the top surface contact of backup pad 4, cushion socket 1 and backup pad 4 are located same one side of first positioning plate 5, first positioning plate 5 and backup pad 4 and positioning bottom plate 3 fixed connection.
Preferably, the buffer block 2 is made of polyurethane. Buffer base 1 and first locating part 502 fixed connection, buffer block 2 are installed on buffer base 1 through the bolt, and buffer block 2 has the mounting hole that lets the bolt pass, has the internal thread hole that lets the bolt insert on the buffer base 1. Through bolted connection, form detachable the connection between buffer block 2 and the buffer seat 1, make things convenient for buffer block 2 to dismantle the back and change.
As shown in fig. 2, in the present embodiment, four first positioning devices are provided, and four first positioning devices are arranged in two rows, and two first positioning devices are arranged in each row. One second positioning means 8 is provided, the second positioning means 8 being located between two first positioning means of one of the columns.
As shown in fig. 2 and 6 to 8, the second positioning device 8 includes a second positioning base 801 disposed on the blank holder 12, a guide plate 802 and a sensor 803 disposed on the second positioning base 801, a sensing block 808 and a rocker 804 rotatably disposed on the second positioning base 801, and a second positioning plate rotatably connected to the sensing block 808 and the rocker 804 and used for positioning the workpiece, the second positioning plate has a second positioning surface for contacting the workpiece, the second positioning surface is an arc surface, an axis of the second positioning surface is located in a horizontal plane, and an axis of the second positioning surface is parallel to an axis of the first positioning surface. Second location base 801 is fixed to be set up on blank holder 12, and second location base 801 is vertical setting and second location base 801 extends towards the top of blank holder 12, and deflector 802 is vertical setting, and deflector 802 is used for playing the guide effect at the work piece, deflector 802 and second location base 801 fixed connection, and deflector 802 is located one side of second locating plate, and in the first direction, second locating plate and deflector 802 are for setting gradually. When drawing processing is carried out, the workpiece moves downwards, the guide plate 802 plays a role in guiding the workpiece, the workpiece contacts the first positioning surface 504 of the first positioning plate 5 and the second positioning surface on the second positioning plate, the first positioning surface 504 and the second positioning surface are kept in contact with the workpiece in the drawing processing process, and the workpiece can be prevented from shaking greatly when being pressed. The second positioning device 8 with the structure integrates the guiding function and the positioning function, has a compact structure and small occupied space, and is convenient to arrange on the blank holder 12 so as to ensure the stability of workpieces and the positioning accuracy.
As shown in fig. 2 and 6 to 8, the rocking bar 804 has a certain length, one end of the rocking bar 804 in the length direction is rotatably connected to the second positioning plate through the second rotating shaft 809, and the other end of the rocking bar 804 in the length direction is rotatably connected to the second positioning plate through the third rotating shaft 810. The sensing block 808 is used for being matched with the sensor 803, the sensing block 808 has a certain length, one end of the sensing block 808 in the length direction is rotatably connected with the second positioning plate through a fourth rotating shaft 811, the other end of the sensing block 808 in the length direction is rotatably connected with the second positioning base 801 through a fifth rotating shaft 812, a second rotating shaft 809, a third rotating shaft 810, the axes of the fourth rotating shaft 811 and the fifth rotating shaft 812 are parallel, the second rotating shaft 809, the third rotating shaft 810, the axes of the fourth rotating shaft 811 and the fifth rotating shaft 812 are parallel to the first direction, the second rotating shaft 809 is positioned above the third rotating shaft 810, the fifth rotating shaft 812 is positioned above the fourth rotating shaft 811, and the second positioning plate is positioned between the sensing block 808 and the rocker 804. The sensor 803 is fixedly connected to the second positioning base 801, the sensor 803 is located below the fourth rotation shaft 811, the sensor 803 is a proximity switch, the sensing block 808 can rotate to one side of the sensor 803, and the sensor 803 sends a corresponding signal to the controller. The induction block 808 is matched with the inductor 803 and used for inducing the state whether the blank holder 12 is used for placing a workpiece or not, so that the safety of the drawing die is improved.
Preferably, as shown in fig. 6 to 8, the second positioning plate includes a second positioning portion 805 and a connecting rod 806 connected to the second positioning portion 805, the connecting rod 806 is rotatably connected to the rocker 804 and the sensing block 808, and a surface of the second positioning portion 805 facing the workpiece is a second positioning surface for contacting the workpiece. The connecting rod 806 extends out towards the outside of the second positioning portion 805, the connecting rod 806 is located between the rocker 804 and the sensing block 808, the connecting rod 806 has a certain length, one end of the connecting rod 806 in the length direction is rotatably connected with the rocker 804 through a third rotating shaft 810, the other end of the connecting rod 806 in the length direction is rotatably connected with the sensing block 808 through a fourth rotating shaft 811, and the end of the connecting rod 806 is fixedly connected with the second positioning portion 805. The second positioning portion 805 is a flat plate, the second positioning portion 805 has a certain length, the length direction of the second positioning portion 805 is perpendicular to the first direction, and the connecting rod 806 is fixedly connected to the second positioning portion 805 at a position between two ends of the second positioning portion 805 in the length direction. The thickness direction of the second positioning portion 805 is parallel to the rotation center line of the material holding frame 6, the second positioning surface is disposed on the second positioning portion 805, the surface of the second positioning portion 805 facing the workpiece is the second positioning surface, the width of the second positioning portion 805 gradually increases from the upper end to the lower end, and the width direction of the second positioning portion 805 is parallel to the second direction. The width of the lower end of the second positioning portion 805 is the largest, and the width of the upper end of the second positioning portion 805 is the smallest, and during the drawing process, the workpiece moves from the upper end of the second positioning portion 805 to the lower end of the second positioning portion 805 along the second positioning surface.
As shown in fig. 6 to 8, the second positioning device 8 further includes a second weight block 807 disposed on the sensing block 808, the second weight block 807 is fixedly connected to the sensing block 808, and the second weight block 807 is disposed such that a center of gravity of a component formed by the second weight block 807 and the sensing block 808 and the second weight block 807 are located on the same side of an axis of the fifth rotating shaft 812 (the axis of the fifth rotating shaft 812 is also a rotation center line of the component formed by the second weight block 807 and the sensing block 808), and in an initial state, the workpiece is not subjected to a downward pressure, and under the action of the second weight block 807, the sensing block 808 rotates to a position above the sensor 803, and the sensor 803 cannot detect the sensing block 808. In the drawing process, the workpiece moves downward to offset the weight of the second balancing weight 807, the workpiece pushes the second positioning plate to rotate downward, the second positioning plate drives the sensing block 808 to rotate downward, the second balancing weight 807 rotates upward, finally the sensing block 808 rotates to one side of the sensor 803, the second positioning portion 805 is in a vertical state, and the sensor 803 detects the sensing block 808. After the drawing is finished, the workpiece is separated from the second positioning plate, the second balancing weight block 807 rotates downwards under the action of the second balancing weight block 807, the sensing block 808 rotates reversely, the sensing block 808 rotates upwards, the sensing block 808 pushes the second positioning plate to rotate upwards, finally the second positioning plate rotates upwards to an initial state, and the second positioning plate is located above the blank holder 12 in the initial state.
As shown in fig. 2 to 9, the forming device 9 includes a bottom plate 901, a slide seat 902 movably disposed in the vertical direction, a forming block 904 disposed on the slide seat 902, and an elastic member 903 disposed on the bottom plate 901 and configured to apply an elastic force to the slide seat 902. Elastic element 903 sets up a plurality ofly, and elastic element 903 is preferably the nitrogen spring, and elastic element 903 is vertical setting, and elastic element 903 is used for exerting the effort that makes it along vertical direction rebound to sliding seat 902, is used for promoting sliding seat 902 rebound after the drawing is finished, resets, and sliding seat 902 drives shaping piece 904 synchronous rebound simultaneously, and shaping piece 904 can promote the work piece rebound at the in-process of rebound, plays the effect of liftout, conveniently unloads. The bottom plate 901 is horizontally arranged, the bottom plate 901 is fixedly connected with the lower template 11, and the elastic element 903 is clamped between the sliding seat 902 and the bottom plate 901. The sliding seat 902 is vertically arranged, the forming block 904 is fixedly installed at the upper end of the sliding seat 902, the forming block 904 extends towards the upper portion of the sliding seat 902, the elastic element 903 is located below the sliding seat 902, the forming block 904 is located below the upper die plate 10, the male die is provided with an avoiding hole for accommodating the forming block 904 and the sliding seat 902, the forming block 904 is matched with the female die cavity of the upper die plate 10 to draw and form a workpiece, and the top surface of the forming block 904 is a forming surface used for being in contact with the workpiece. The forming block 904 has a length, the length of the forming block 904 being parallel to the second direction, the length of the forming block 904 being less than the length of the punch. The forming device 9 is arranged at a local position and is matched with the upper template 10 to carry out drawing forming on the workpiece, so that the drawing forming quality of the workpiece is improved.
As shown in fig. 2, in the present embodiment, two forming devices 9 are provided, and the two forming devices 9 are located on the same straight line parallel to the first direction.
The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.
Claims (10)
1. Automobile tail-gate inner panel drawing die utensil includes cope match-plate pattern, lower bolster, sets up blank holder and forming device on the lower bolster and sets up first positioner and second positioner on the blank holder, its characterized in that: the first positioning device comprises a first positioning base arranged on the blank holder, a first positioning plate vertically arranged on the first positioning base and used for positioning a workpiece, a material supporting frame rotatably arranged on the first positioning plate and a buffer arranged below the material supporting frame and used for buffering the material supporting frame, the rotation center line of the material supporting frame is located in the horizontal plane, the first positioning plate is provided with a positioning surface used for being in contact with the workpiece, and the axis of the positioning surface is an arc surface and parallel to the rotation center line of the material supporting frame.
2. The automobile tail-gate inner panel drawing die of claim 1, characterized in that: first locating plate includes last supporting part, first location portion and the lower supporting part that sets gradually along vertical direction, the work or material rest is rotatable to be set up on last supporting part, and the surface of the face of first location portion towards the work piece does the locating surface, the width of first location portion is for starting to the lower extreme from the upper end and progressively enlarges.
3. The automobile tail-gate inner panel drawing die of claim 2, characterized in that: the upper end of first location portion with go up supporting part fixed connection, the lower extreme of first location portion with lower supporting part fixed connection, the lower support portion with first locating base fixed connection, the buffer sets up on first location portion and the buffer passes through the bolt and is connected with first location portion.
4. The automobile tail-gate inner panel drawing die of any one of claims 1 to 3, characterized in that: the material supporting frame comprises a material supporting rod rotatably connected with the first positioning plate, a turning seat connected with the material supporting rod and a first balancing weight arranged on the turning seat, and the turning seat and the first balancing weight are positioned on the same side of the first positioning plate. The material supporting rods are arranged in parallel, the material supporting rods are fixedly connected with the overturning seat, the two material supporting rods extend out towards the same side of the overturning seat, and the first positioning plate is positioned between the two material supporting rods.
5. The automobile tail-gate inner panel drawing die of claim 4, wherein: the buffer comprises a buffer seat and a buffer block arranged on the buffer seat and used for being in contact with the overturning seat, wherein the buffer block is located below the overturning seat and is made of a soft material.
6. The automobile tail-gate inner panel drawing die of claim 5, characterized in that: the buffer block is made of polyurethane.
7. The automobile tail-gate inner panel drawing die of any one of claims 1 to 6, characterized in that: the second positioning device comprises a second positioning base arranged on the blank holder, a guide plate and an inductor which are arranged on the second positioning base, a sensing block and a rocker which are rotatably arranged on the second positioning base, and a second positioning plate which is rotatably connected with the sensing block and the rocker and is used for positioning a workpiece, wherein the second positioning plate is provided with a positioning surface used for contacting the workpiece, and the axis of the positioning surface is an arc surface and is positioned in the horizontal plane.
8. The automobile tail-gate inner panel drawing die of claim 7, characterized in that: the second positioning plate comprises a second positioning part and a connecting rod connected with the second positioning part, the connecting rod is rotatably connected with the rocker and the sensing block, and the surface of the second positioning part facing the workpiece is a positioning surface used for contacting with the workpiece.
9. The automobile tail-gate inner panel drawing die of claim 7 or 8, characterized in that: the second positioning device further comprises a second balancing weight arranged on the induction block.
10. The automobile tail-gate inner panel drawing die of any one of claims 1 to 9, characterized in that: the forming device comprises a bottom plate, a sliding seat which can be movably arranged along the vertical direction, a forming block arranged on the sliding seat and a plurality of elastic elements which are arranged on the bottom plate and used for applying elastic acting force to the sliding seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810986892.5A CN110860606A (en) | 2018-08-28 | 2018-08-28 | Automobile tail door inner plate drawing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810986892.5A CN110860606A (en) | 2018-08-28 | 2018-08-28 | Automobile tail door inner plate drawing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110860606A true CN110860606A (en) | 2020-03-06 |
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ID=69651408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810986892.5A Pending CN110860606A (en) | 2018-08-28 | 2018-08-28 | Automobile tail door inner plate drawing die |
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| Country | Link |
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| CN (1) | CN110860606A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112296179A (en) * | 2020-09-30 | 2021-02-02 | 浙江黄岩冲模有限公司 | Drawing forming surface quality control process for water flowing groove of automobile rear tail door |
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Application publication date: 20200306 |