CN116099938A - Stamping die for automobile parts and application method thereof - Google Patents

Abstract

The utility model relates to a stamping die and application method for auto-parts relates to the punching press field, it includes mould and lower mould, the one side that upper mould and lower mould are close to each other all is followed vertical direction sliding connection and is used for pressing the material body in tight material area, the lower tip of upper mould is equipped with a plurality of deburring inserts, the shape adaptation at deburring insert and blank edge, the deburring punch a hole of a plurality of and deburring insert adaptation has been seted up to the lower mould, one side that upper mould and lower mould are close to each other is equipped with a plurality of shaping inserts, the shaping insert one-to-one of upper mould and lower mould, the shape adaptation of the lower tip of upper mould shaping insert and finished product spare up end, the shape adaptation of the upper end of lower mould shaping insert and finished product spare down end is equipped with the slide wedge that is used for cutting off the finished product spare from the material area and is used for punching the square hole between upper mould and the lower mould, the deburring insert, shaping insert and cutting off insert are set up along the length direction order of lower mould. The method has the advantage of higher processing efficiency.

Description

Stamping die for automobile parts and application method thereof

Technical Field

The invention relates to the field of stamping, in particular to a stamping die for automobile parts and a using method thereof.

Background

Stamping, namely, a processing technology of deforming a workpiece blank by impact and finally forming the workpiece blank into a required shape in a die. The blanks suitable for stamping are generally plates such as steel plates, steel strips and the like, and accessories of a plurality of parts on an automobile can be formed and processed in a stamping mode.

Referring to fig. 1, there is an automobile part, in which a finished product 100 includes a connecting portion 101, a first flange 102, a second flange 103, a third flange 104 and a fourth flange 105 are bent downwards at the edge of the connecting portion 101, the four flanges are arranged along the circumferential direction of the connecting portion 101, one end of the third flange 104, which is far away from the connecting portion 101, is bent upwards to form a bending portion 106, a square hole 107 is formed in the bending portion 106, one end of the second flange 103, which is far away from the connecting portion 101, is bent upwards, and the edges of the first flange 102 and the fourth flange 105 are bent upwards.

Referring to fig. 2, when the automobile part is processed, the blank 200 of the automobile part is cut or punched out of the blank, and then the finished product 100 is finally formed by punching, flanging, or the like.

The related art can refer to Chinese patent publication No. CN103879004A for disclosing a hydraulic punching machine, which comprises a hydraulic working table, a hydraulic punch, a hydraulic motor and an oil filling hole. The hydraulic punch and the hydraulic punch press adopt a crank connecting device, the crank connecting device provides hydraulic power for the hydraulic punch press through a piston air cylinder, the oil filling hole adopts a multi-level oil filling mode with gradually reduced aperture, two sides of an oil filling hole oil way are respectively provided with an oil storage box with a temporary oil storage function, the lower part of the oil storage box is provided with an oil outlet, the part of the oil filling hole connected with equipment is provided with a baffle, and at least three oil holes are formed in the baffle. During processing of the application and the current common punching machine, the upper die is arranged on the hydraulic punch, the lower die is arranged on the hydraulic working table, the blank is arranged on the lower die, and the stamping is realized by lifting of the upper die.

For the related art, when the conventional punch and the die are used for processing the automobile parts, a plurality of sets of dies are required to be manufactured, and then the parts are processed sequentially at different positions in front and back, so that the processing efficiency is low.

Disclosure of Invention

In order to improve machining efficiency, the application provides a stamping die for automobile parts and a using method thereof.

In a first aspect, the present application provides a stamping die for an auto-part, which adopts the following technical scheme:

the utility model provides a stamping die for auto-parts, includes mould and lower mould, the one side that goes up mould and lower mould and is close to each other all is followed vertical direction sliding connection and is used for pressing the material body of tight material area, the lower tip of going up the mould is equipped with a plurality of deburring inserts, the shape adaptation at deburring insert and blank edge, the deburring punch a hole of a plurality of and deburring insert adaptation is seted up to the lower mould, one side that goes up mould and lower mould are close to each other is equipped with a plurality of shaping inserts, the shaping insert one-to-one of going up mould and lower mould, the shape adaptation of the lower tip and the finished product up end of last mould shaping insert, the shape adaptation of the upper end and the finished product down end of mould is equipped with the slide wedge that is used for cutting off the finished product from the material area insert and is used for punching out the square hole between last mould and the lower mould, deburring insert, shaping insert and cutting insert set up along the length direction order of lower mould.

By adopting the technical scheme, the material belt passes between the upper die and the lower die, the upper die and the lower die are periodically close to each other and are mutually far away from each other, the upper die and the lower die are close once, and the material belt is fed once; when the material belt passes through the trimming insert, the trimming insert punches the material belt and is embedded into the trimming punched hole, and the shape of the edge of the blank is trimmed on the material belt; when the material belt passes through the forming insert, the forming insert corresponding to the upper die and the lower die extrudes the corresponding position of the blank to turn over the blank; when the material belt passes through the inclined wedge, the upper die and the lower die are mutually close to each other to extrude the inclined wedge to punch square holes out to form a finished product; and finally, when the material belt passes through the cutting insert, the cutting insert cuts off the joint of the finished product piece and the material belt, and stamping processing is completed.

Optionally, the lower tip of last mould is equipped with a plurality of location towards piece and location insert, and the location towards piece is located the deburring insert and deviates from the one side of shaping insert, and the equidistant setting of length direction along last mould of location insert, and the lower mould has seted up a plurality of vertical holes with location insert and location towards piece one-to-one.

Through adopting above-mentioned technical scheme, when the material area gets into between upper die and the lower mould, at first by the vertical hole that the embedding of location punching block corresponds, punching a plurality of locating holes on the material area, the material area is fed once at every time afterwards, all has the locating hole that the location insert aligned the material area to be close to along with the upper die lower mould, the location insert inserts in the locating hole and carries out accurate location to the material area, and the material area is difficult for taking place to deviate in feeding the in-process, has ensured machining precision when improving machining efficiency.

Optionally, still including the charge-up board that is used for driving the material area to feed, charge-up board upper end has the shifting block along the length direction sliding connection of lower mould, and the shifting block lower extreme is equipped with the clamp plate, is connected with first elastic component between clamp plate and the shifting block, and under the first elastic component natural state, clamp plate and charge-up board's up end butt, the pay-off frame has the lifting unit who drives the clamp plate and go up and down.

Through adopting above-mentioned technical scheme, the material area is from the charge plate between getting into the upper mould lower mould, and when the upper mould lower mould is close to, the shifting block slides to the direction of keeping away from the upper mould, and the tight material area of lift assembly control clamp plate decline later, the in-process that upper mould lower mould kept away from, the shifting block moves back and drives the material area to feed between the upper mould lower mould, realizes the periodic feeding of material area, simple structure control is convenient.

Optionally, lifting unit includes diaphragm and deflector, diaphragm fixed connection compresses tightly the material area when the clamp plate is located the diaphragm below, and the clamp plate is kept away from the one end of lower mould and is articulated to have the deflector, is connected with the second elastic component between deflector and the clamp plate, and under the second elastic component natural state, the deflector slope and keep away from the one end of clamp plate higher, and the one end that the diaphragm is close to the lower mould is equipped with the slope, and the deflector upwards moves along the slope when being in butt with the slope.

By adopting the technical scheme, when the poking block drives the pressing plate to be far away from the upper die, the guide plate is abutted with the slope to move to the upper part of the transverse plate, the material belt is positioned below the transverse plate, and the guide plate is not easy to pull the material belt back, so that the processing precision is improved; when the shifting block is close to the upper die, the second elastic piece pulls the pressing plate to descend, the material belt is pressed from the lower part of the transverse plate, and then the material belt is driven to feed, and the structure is simple and the effect is good.

Optionally, the shifting block upper end is equipped with the gyro wheel, and one side that goes up the mould and is close to the delivery sheet has set firmly to prop the piece, and the gyro wheel is with the lower terminal surface butt that props the piece, and the lower terminal surface that props the piece is the inclined plane and along the direction that keeps away from the mould gradually increases, is connected with the third elastic component between shifting block and the delivery sheet, and under the third elastic component natural state, the shifting block is nearer apart from last mould.

Through adopting above-mentioned technical scheme, under the effect of third elastic component, the shifting block is nearer to last mould under the natural state, and in-process that goes down the punching press is carried out to last mould, the lower terminal surface that supports the piece promotes the gyro wheel to the direction of keeping away from last mould, and then utilizes the lift of last mould to realize the horizontal slip of shifting block in step, simple structure precision is high.

Optionally, the lower terminal surface of clamp plate and the up end of delivery sheet all are equipped with a plurality of alignment rollers, and the alignment roller all sets up along the width direction of lower mould.

Through adopting above-mentioned technical scheme, compress tightly the material area at the clamp plate and drive the material area in-process that feeds, the material area is through a plurality of alignment rollers of crisscross setting, is straightened at last, and the material area is difficult for curling deformation in the punching press process because of the winding, is favorable to improving machining precision.

Optionally, the feeding plate is located at one end of the lower die close to the cutting insert.

Through adopting above-mentioned technical scheme, the charge plate is in taut state all the time to the material area between shaping insert and cutting off the insert, and then is difficult for taking place bending deformation, is favorable to improving machining precision.

Optionally, the material pressing body of upper mould and lower mould is close to one side all along vertical direction sliding connection with the material pole that supports, all is connected with fourth elastic component between material pole and the corresponding material pressing body that supports.

Through adopting above-mentioned technical scheme, under the elastic action of fourth elastic component, at the in-process that last mould lower mould kept away from, support the material pole and support tightly the material area all the time, go up the mould lower mould and keep away from each other the back, support the material pole still and provide the support to the material area, and then keep the shape in material area, reduce the influence of gravity to the shape in material area, be favorable to improving machining precision.

In a second aspect, the present application provides a method for using a stamping die, including the steps of:

s1: unreeling the material belt, wherein the material belt is gradually unreeled and passes between the upper die and the lower die;

s2: feeding a material belt, wherein the material belt is fed to the other end of the die in a certain period and a certain length;

s3: stamping, namely periodically approaching and keeping away from an upper die and a lower die, contacting different positions of a trimming insert, a forming insert, a wedge and a cutting insert with a material belt when approaching to each other, feeding the material belt when keeping away from each other, trimming the shape of a blank on the material belt by the trimming insert along with feeding of the material belt, stamping and flanging the blank by the forming insert, punching a square hole when passing through the wedge, cutting a finished product piece from the material belt by the cutting insert, and cutting the rest part of the material belt by the breaking insert.

Through adopting above-mentioned technical scheme, the material area is automatic to be through different processes to the material area is the front and back deburring, shaping, cut off etc. process go on simultaneously, but different work pieces of simultaneous processing, wholly have higher machining efficiency.

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

1. the material belt passes through the space between the upper die and the lower die, the upper die and the lower die are periodically close to each other and are far away from each other, the upper die and the lower die are close to each other once, and the material belt is fed once; when the material belt passes through the trimming insert, the trimming insert punches the material belt and is embedded into the trimming punched hole, and the shape of the edge of the blank is trimmed on the material belt; when the material belt passes through the forming insert, the forming insert corresponding to the upper die and the lower die extrudes the corresponding position of the blank to turn over the blank; when the material belt passes through the inclined wedge, the upper die and the lower die are mutually close to each other to extrude the inclined wedge to punch square holes out to form a finished product; finally, when the material belt passes through the cutting insert, the cutting insert cuts off the joint of the finished product piece and the material belt, and stamping processing is completed, and as the material belt automatically passes through different working procedures, and the working procedures of trimming, forming, cutting and the like before and after the material belt are simultaneously carried out, different workpieces can be processed simultaneously, and the overall processing efficiency is higher;

2. under the action of the third elastic piece, the shifting block is close to the upper die in a natural state, and in the process of descending and punching of the upper die, the lower end surface of the abutting block pushes the roller in a direction away from the upper die, so that the lifting of the upper die is utilized to synchronously realize the horizontal sliding of the shifting block, and the structure is simple and the accuracy is high;

3. under the elastic action of the fourth elastic piece, the material supporting rod is always abutted against the material belt in the process of keeping away the upper die and the lower die, and after the upper die and the lower die are kept away from each other, the material supporting rod still provides support for the material belt, so that the shape of the material belt is maintained, the influence of gravity on the shape of the material belt is reduced, and the processing precision is improved.

Drawings

Fig. 1 is a schematic diagram of a finished part structure of an automobile part in the background art.

Fig. 2 is a schematic diagram of a blank structure of an automobile part in the background art.

Fig. 3 is a schematic view of the structure of the material belt in the punching process.

Fig. 4 is a front view of embodiment 1.

Fig. 5 is a schematic view highlighting the structure above the feed plate.

Fig. 6 is a schematic cross-sectional view of the structure above the feed plate.

Fig. 7 is a schematic view of the overall structure of the upper die.

Fig. 8 is a schematic view of the overall structure of the lower die.

FIG. 9 is a schematic partial cross-sectional view showing the position of the material pushing rod and the fourth elastic member.

Fig. 10 is a front view of embodiment 2.

Reference numerals illustrate: 100. a finished part; 101. a connection part; 102. a first flanging; 103. a second flanging; 104. a third flanging; 105. fourth flanging; 106. a bending part; 107. square holes; 200. blank member; 300. a material belt; 301. positioning holes; 1. a feed plate; 11. a shifting block; 111. a roller; 112. a third elastic member; 12. a pressing plate; 121. a second elastic member; 13. a first elastic member; 14. a lifting assembly; 141. a cross plate; 142. a guide plate; 2. an upper die; 21. positioning the insert; 22. trimming the insert; 23. forming an insert; 24. cutting off the insert; 25. positioning a punching block; 26. abutting blocks; 3. a lower die; 31. a vertical hole; 32. trimming and punching; 4. pressing a material body; 41. a material supporting rod; 42. a fourth elastic member; 5. straightening rollers; 6. wedge.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses a stamping die for auto parts.

Example 1:

referring to fig. 3 and 4, a stamping die for an automobile part comprises an upper die 2, a lower die 3 and a feeding plate 1, wherein one end of the die in the length direction is a feeding end, the other end is a discharging end, the feeding plate 1 is positioned at the feeding end, a material strip 300 enters between the upper die 2 and the lower die 3 from the upper side of the feeding plate 1, the upper die 2 and the lower die 3 are periodically close to and far away from each other, when the lower die 3 of the upper die 2 is far away from the lower die 3, the material strip 300 is fed forward for a certain length, a plurality of inserts are arranged on the upper die 2 and the lower die 3, when the upper die 2 and the lower die 3 are close to each other, the inserts are contacted with the material strip 300 for stamping, and the inserts sequentially perform different procedures such as trimming, flanging, punching and cutting off the material strip 300 along with the movement of the material strip 300 to the discharging end.

Referring to fig. 3 and 4, during the process, a user installs the mold on the press, controls the lifting of the upper mold 2 and the lower mold 3 by using the hydraulic system, and supports the feed plate 1 by using the press, thereby realizing the periodical mutual approaching and separating of the upper mold 2 and the lower mold 3. Because of the length limitation, the material belt 300 is generally coiled, the user fixes the feeding plate 1 at a position near the feeding end of the press, and then extends the end of the material belt 300 to a position near the feeding end between the upper die 2 and the lower die 3 through the upper portion of the feeding plate 1, so that the processing can be started.

Referring to fig. 3 and 4, each time the lower die 3 of the upper die 2 approaches once after starting the punching, the material tape 300 needs to be fed forward once, and the power of feeding the material tape 300 is provided at the feed plate 1.

Referring to fig. 4 and 5, a shifting block 11 is installed above the feeding plate 1, the shifting block 11 is arched, the lower end of the shifting block 11 is slidably connected with the feeding plate 1 along the length direction of the upper die 2, and the feeding plate 1 provides support. A third elastic piece 112 is connected between one side of the shifting block 11, which is close to the upper die 2, and the feeding plate 1, the third elastic piece 112 adopts a straight spring, and in the natural state of the third elastic piece 112, the shifting block 11 is positioned at the position, which is closest to the upper die 2, of the feeding plate 1.

Referring to fig. 4 and 5, an abutment block 26 is fixedly installed on one side of the upper die 2 near the feeding end, when the upper die 2 descends, the abutment block 26 descends synchronously, the upper end of the shifting block 11 is rotatably connected with a roller 111, and during the descending process of the abutment block 26, the lower end surface abuts against the roller 111. The lower end surface of the abutting block 26 is an inclined surface and gradually increases along the direction away from the upper die 2, and as the roller 111 is in contact with the inclined surface, the abutting block 26 descends to generate a horizontal component force for pushing the shifting block 11 away from the upper die 2, and along with the descending of the upper die 2, the shifting block 11 moves to the position of the feeding plate 1 farthest from the upper die 2, and the horizontal sliding distance of the shifting block 11 is the length of the abutting block 26.

Referring to fig. 5 and 6, a pressing plate 12 is mounted at the lower end of a shifting block 11, the pressing plate 12 is slidably connected with the shifting block 11 along the vertical direction, a material belt 300 passes between the pressing plate 12 and a feeding plate 1, a lifting assembly 14 for driving the pressing plate 12 to lift is arranged above the feeding plate 1, when the pressing plate 12 is far away from an upper die 2 along with the shifting block 11, the lifting assembly 14 controls the pressing plate 12 to lift, the distance between the pressing plate 12 and the feeding plate 1 is increased, and the friction force of the pressing plate 12 is avoided to drive the material belt 300 to move back.

Referring to fig. 4 and 6, the elevation assembly 14 includes a traverse plate 141 for driving the pressing plate 12 to ascend, the traverse plate 141 being horizontally fixedly installed on the feeding plate 1, and the material belt 300 passing between the traverse plate 141 and the feeding plate 1; the guide plate 142 is installed to the one end that clamp plate 12 kept away from mould 2, and the lower tip of guide plate 142 is articulated with clamp plate 12, is connected with second elastic component 121 between the one end that clamp plate 12 is close to guide plate 142 and the guide plate 142, and second elastic component 121 selects the elastic band, and under the natural state of second elastic component 121, guide plate 142 is in the tilt state that keeps away from clamp plate 12 one end was last, along with clamp plate 12 kept away from mould 2, the lower terminal surface and the diaphragm 141 butt of guide plate 142.

Referring to fig. 4 and 6, one end of the transverse plate 141, which is close to the upper die 2, is gradually inclined downward, the guide plate 142 moves upward along the inclined end of the transverse plate 141, and when the dial block 11 is far away from the upper die 2, the pressing plate 12 slides over the transverse plate 141, so that the pressing plate 12 is lifted up, and is not in contact with the material belt 300, and the friction force of the pressing plate 12 is prevented from driving the material belt 300 to move back.

Referring to fig. 5 and 6, when the lower molds 3 of the upper mold 2 are moved close to each other to press the material strip 300 once, the lower molds 3 of the upper mold 2 are moved away from each other, and then the material strip 300 is fed. The pressing plate 12 moves to one side of the transverse plate 141 away from the upper die 2 during the punching process; a first elastic piece 13 is connected between the lower end part of the pressing plate 12 and the feeding plate 1, the first elastic piece 13 is also a straight spring, and under the action of the first elastic piece 13, the pressing plate 12 is abutted against the upper end surface of the feeding plate 1; at this time, the pressing plate 12 presses the material belt 300 above the feeding plate 1 under the tensile force of the first elastic member 13, and the pressing plate 12 clamps the material belt 300 with the feeding plate 1.

Referring to fig. 4 and 6, as the lower molds 3 of the upper mold 2 are moved away from each other, the tension of the third elastic member 112 (see fig. 5) pulls the pressing plate 12 to move back toward the upper mold 2, at which time the pressing plate 12 moves back from below the traverse plate 141, at which time the guide plate 142 is turned over along the hinge and moves synchronously with the pressing plate 12 from below the traverse plate 141.

Referring to fig. 4 and 6, a plurality of straightening rollers 5 are all installed on the lower end surface of the pressing plate 12 and the upper end surface of the feeding plate, the straightening rollers 5 are all arranged along the width direction of the lower die 3, the straightening rollers 5 of the feeding plate are all rotationally connected with the feeding plate, the straightening rollers 5 of the pressing plate 12 are all fixedly connected with the pressing plate 12, fine sand grinding treatment can be carried out on the surfaces of the straightening rollers 5 of the pressing plate 12, friction between the material belt 300 and the reinforcing is enhanced, when the material belt 300 passes through the upper part of the feeding plate, the material belt 300 is driven by the friction of the straightening rollers 5 on the pressing plate 12, and then the upper die 2 and the lower die 3 move.

Referring to fig. 7 and 8, the pressing bodies 4 are installed at one sides of the upper die 2 and the lower die 3, which are close to each other, the vertical guide rods are fixedly installed at the upper die 2 and the lower die 3, the pressing bodies 4 are slidably connected with the corresponding guide rods, springs are connected between the lower die 3 of the upper die 2 and the corresponding pressing bodies 4, when the upper die 3 and the lower die 3 are close to each other, the two pressing bodies 4 are close to each other synchronously, after the two pressing bodies 4 are in contact with the material belt 300, the upper die 2 and the lower die 3 are continuously close to each other, at the moment, the springs are compressed, the two pressing bodies 4 clamp the material belt 300 under the reaction force of the springs, the displacement of the material belt 300 in the punching process is limited, and the machining precision is guaranteed.

Referring to fig. 7 and 9, round holes are formed on one sides, close to each other, of the two pressing bodies 4, material supporting rods 41 capable of sliding along the vertical direction are mounted in the round holes, fourth elastic pieces 42 are mounted at one ends, located in the round holes, of the material supporting rods 41, springs are selected for the fourth elastic pieces 42, when the distance between the upper die 2 and the lower die 3 (see fig. 8) is the largest, the material supporting rods 41 of the two pressing bodies 4 are respectively abutted to the upper side and the lower side of the material belt 300 under the elastic acting force of the fourth elastic pieces 42, the positions of the material belt 300 are further limited, and machining accuracy is guaranteed. The end of the material supporting rod 41, which is close to the material belt 300, is hemispherical, the contact area with the material belt 300 is small, the friction force to the material belt 300 is small while the material belt 300 is supported and limited, and smooth feeding of the material belt 300 is facilitated.

Referring to fig. 7 and 8, each of the upper die 2 and the lower die 3 is provided with a plurality of inserts for punching the shape of the material tape 300, and each of the inserts includes a positioning insert 21, a trimming insert 22, a molding insert 23, and a cutting insert 24 from the feed end to the discharge end. The positioning inserts 21 are vertically fixed on the lower end face of the upper die 2, and synchronously lift along with the upper die 2, the three positioning inserts 21 are respectively opposite to the middle and two sides of the width direction of the material belt 300, the lower die 3 is provided with vertical holes 31 corresponding to the positioning inserts 21, and the upper die 2 and the lower die 3 are mutually close.

Referring to fig. 3 and 7, the positioning insert 21 abuts against the material belt 300 and penetrates through the material belt 300 to be embedded into the corresponding vertical hole 31, a group of positioning holes 301 in the middle and at two sides are punched in the material belt 300, and each time the material belt 300 is fed, a group of positioning holes 301 are punched in the material belt 300, and the interval between two adjacent groups of positioning holes 301 is the length of one feeding of the material belt 300.

Referring to fig. 3 and 7, a plurality of positioning punches 25 are fixedly mounted on the lower end surface of the upper die 2, the positioning punches 25 are divided into a plurality of groups, the distance between two adjacent groups of positioning punches 25 is the same as the distance between two adjacent groups of positioning holes 301, after the material strip 300 is fed once, the positioning holes 301 move to the position right below the next group of positioning punches 25, then the positioning punches 25 descend along with the upper die 2, part of vertical holes 31 correspond to the positioning punches 25, the positioning punches 25 are inserted into the vertical holes 31 through the corresponding positioning holes 301, and the material strip 300 is kept at the correct positions in the length direction and the width direction. The lower end of the positioning punch 25 is conical, the diameter of the positioning punch is gradually reduced from top to bottom, if the material belt 300 is offset in a small range, the lower end of the positioning punch 25 can be inserted into the positioning hole 301, and the positioning punch 25 can guide the material belt 300 rapidly along with the descending of the positioning punch 25, so that the machining precision is guaranteed.

Referring to fig. 7 and 8, the width of the material tape 300 is greater than twice the maximum span of the blank 200, and thus, both sides in the width direction of the material tape 300 can be simultaneously processed, thereby improving the processing efficiency. The trimming inserts 22 comprise a plurality of blocks which are respectively adapted to the edges of the blank 200 at different positions, the lower die 3 is provided with trimming and punching holes 32 which are in one-to-one correspondence with the trimming inserts 22, along with the multiple feeding of the material belt 300, different trimming inserts 22 penetrate through the material belt 300 along with the descending of the upper die 2 and are embedded into the corresponding trimming and punching holes 32, the edges of the blank 200 at different positions are respectively trimmed on the material belt 300, after the material belt 300 passes through the last trimming insert 22, a thinner traction belt remains at the middle position of the width direction of the material belt 300, and two sides of the traction belt are connected with one blank 200.

Referring to fig. 7 and 8, the material belt 300 continues to feed, the traction belt drives the blanks 200 at two sides to move to the forming insert 23, the forming insert 23 comprises a plurality of pairs respectively matched with the first flange 102, the second flange 103, the third flange 104 and the fourth flange 105, each pair of forming inserts 23 comprises an upper insert positioned above the material belt 300 and fixed on the upper die 2 and a lower insert positioned below the material belt 300 and fixed on the lower die 3, the lower end part of the upper insert is provided with a bulge corresponding to the finished product 100, the lower insert is provided with a recess corresponding to the lower insert, and the bulge of the upper insert presses the corresponding position of the blank 200 into the recess of the lower insert along with the mutual approaching of the lower die 3 of the upper die 2, so that the first flange 102, the second flange 103, the third flange 104 and the fourth flange 105 are formed successively.

Referring to fig. 4 and 8, in order to reduce the influence of the machining error on the positioning of the square hole 107, after the third flange 104 is punched, the bent portion 106 is formed, and then the square hole 107 is positioned and punched. The wedge 6 is connected between the upper die 2 and the lower die 3, the structure of the wedge 6 is common prior art in the field, the embodiment does not describe too much, the wedge 6 is provided with a punch block matched with the square hole 107, when the lower die 3 of the upper die 2 is close to each other, the wedge 6 is extruded to convert the force in the vertical direction into the force for pushing the punch block to the bending part 106, the lower die 3 is provided with an inclined hole corresponding to the punch block, the punch block penetrates through the bending part 106 and is embedded into the inclined hole, and then the square hole 107 is punched on the bending part 106.

Referring to fig. 7 and 8, when the blank 200 passes through all the molding inserts 23 along with the traction belt to form the finished product 100, at this time, the material belt 300 is fed to drive the finished product 100 to the cutting inserts 24, the cutting inserts 24 are divided into three groups, each group of cutting inserts 24 comprises two blocks positioned above and below the material belt 300, wherein the two groups of cutting inserts 24 are positioned at the connection position of the traction belt and the finished product 100 on two sides, and when the upper die 2 and the lower die 3 are mutually close, the same group of cutting inserts 24 washes the connection position of the traction belt and the finished product 100 on two sides to finish the processing of the finished product 100; the last set of cutting inserts 24 is located directly above the traction belt, and after the finished product 100 is cut by the first two sets of cutting inserts 24, the traction belt is broken by the last set of cutting inserts 24, so that the processing is completed.

The implementation principle of embodiment 1 of the present application is: the material belt 300 passes between the upper die 2 and the lower die 3, the upper die 2 and the lower die 3 are periodically close to each other and far away from each other, the lower die 3 of the upper die 2 is close once, and the material belt 300 is fed once; when the material belt 300 passes through the trimming insert 22, the trimming insert 22 punches the material belt 300 and is embedded into the trimming punched hole 32, and the shape of the edge of the blank 200 is trimmed on the material belt 300; when the material belt 300 passes through the forming insert 23, the forming insert 23 corresponding to the upper die 2 and the lower die 3 extrudes the corresponding position of the blank 200 to turn up the blank 200; when the material belt 300 passes through the inclined wedge 6, the upper die 2 and the lower die 3 mutually approach to extrude the inclined wedge 6 to punch the square hole 107 to form a finished product piece 100; finally, when the material belt 300 passes through the cutting insert 24, the cutting insert 24 cuts off the joint of the finished product piece 100 and the material belt 300, and stamping processing is completed, and as the material belt 300 automatically passes through different working procedures, the working procedures of trimming, forming, cutting and the like before and after the material belt 300 are simultaneously carried out, different workpieces can be processed simultaneously, and the overall processing efficiency is higher.

Example 2:

referring to fig. 9, the present embodiment is mainly different from embodiment 1 in that: the feeding plate 1 is located between the cutting insert 24 for cutting the finished product 100 and the cutting insert 24 for cutting the traction belt, that is, located at a position closer to the discharge end, a self-locking motor (not shown in the figure) can be used for unreeling the material belt 300, so as to control the feeding amplitude of the material belt 300, after the finished product 100 is cut by the cutting inserts 24 of the first two groups, the traction belt moves to the upper part of the feeding plate 1 and is pulled towards the discharge end, that is, when the upper die 2 and the lower die 3 are mutually far away, the material belt 300 is pulled and fed, so that the material belt 300 is kept tight, and the material belt 300 is not easy to deform due to the winding of the material belt 300, thereby being beneficial to improving the processing precision.

The embodiment of the application also discloses a using method of the stamping die.

The application method of the stamping die comprises the following steps:

s1: the material belt 300 is unreeled, and a user controls the material belt 300 to be gradually unreeled and places the end part of the material belt 300 between the upper die 2 and the lower die 3;

s2: the material belt 300 is fed, and the material belt 300 is fed to the other end of the die for a certain length when the upper die 3 and the lower die 3 are far away under the pushing of the pressing plate 12 at the feeding plate 1;

s3: the material belt 300 is punched once, the upper die 2 and the lower die 3 are mutually close once, the trimming insert 22, the forming insert 23, the inclined wedge 6 and the cutting insert 24 are contacted with different positions of the material belt 300, the material belt 300 is driven to be fed again when being far away from each other, the trimming insert 22 repairs the shape of the blank 200 on the material belt 300 along with the feeding of the material belt 300, the blank 200 is punched and turned by the forming insert 23, a square hole 107 is punched when passing through the inclined wedge 6, finally the finished product piece 100 is cut from the material belt 300 by the cutting insert 24, and the rest of the material belt 300 is cut by the tearing insert.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (9)

1. Stamping die for auto-parts, including last mould (2) and lower mould (3), its characterized in that: the utility model provides a material pressing body (4) that is used for pressing from both sides tight material area (300) are all followed to one side that go up mould (2) and lower mould (3) are close to each other along vertical direction sliding connection, the lower tip of going up mould (2) is equipped with a plurality of deburring inserts (22), the shape adaptation at deburring inserts (22) and blank (200) edge, a plurality of deburring punches (32) with deburring inserts (22) adaptation are offered to lower mould (3), one side that goes up mould (2) and lower mould (3) are close to each other is equipped with a plurality of shaping inserts (23), the shaping inserts (23) of going up mould (2) and lower mould (3) one-to-one, the shape adaptation of the lower tip of going up mould (2) shaping inserts (23) and finished product (100) up end, be equipped with between going up mould (2) and the lower mould (3) and be used for cutting off the cutting off insert (24) on material area (300) and be used for cutting off the shaping wedge (24) of cut-off the wedge (24) and setting up direction (107) of cutting off wedge (3) along the upper end face (3).

2. A stamping die for automotive parts as defined in claim 1, wherein: the lower end of the upper die (2) is provided with a plurality of positioning punching blocks (25) and positioning inserts (21), the positioning punching blocks (25) are positioned on one side, deviating from the forming inserts (23), of the trimming inserts (22), the positioning inserts (21) are arranged at equal intervals along the length direction of the upper die (2), and the lower die (3) is provided with a plurality of vertical holes (31) which are in one-to-one correspondence with the positioning inserts (21) and the positioning punching blocks (25).

3. A stamping die for automotive parts as defined in claim 1, wherein: still including the charge-in board that is used for driving the material area (300) to feed, charge-in board upper end is followed the length direction sliding connection of lower mould (3) and is had a shifting block (11), and the lower tip of shifting block (11) is equipped with clamp plate (12), is connected with first elastic component (13) between clamp plate (12) and the shifting block (11), and under first elastic component (13) natural state, clamp plate (12) and charge-in board's up end butt, and the pay-off has set up lifting unit (14) that drive clamp plate (12) go up and down.

4. A stamping die for automotive parts as defined in claim 3, wherein: lifting unit (14) are including diaphragm (141) and deflector (142), diaphragm (141) fixed connection is in the pay-off board top, clamp plate (12) are located when diaphragm (141) below with material area (300) compress tightly, the one end that lower mould (3) was kept away from to clamp plate (12) articulates there is deflector (142), be connected with second elastic component (121) between deflector (142) and clamp plate (12), under second elastic component (121) natural state, deflector (142) slope and keep away from the one end of clamp plate (12) higher, the one end that diaphragm (141) is close to lower mould (3) is equipped with the slope, along slope upward movement when deflector (142) and slope butt.

5. A stamping die for automotive parts as defined in claim 3, wherein: the upper end of the shifting block (11) is provided with a roller (111), one side of the upper die (2) close to the feeding plate is fixedly provided with a supporting block (26), the roller (111) is in contact with the lower end face of the supporting block (26), the lower end face of the supporting block (26) is an inclined plane and gradually increases along the direction away from the upper die (2), a third elastic piece (112) is connected between the shifting block (11) and the feeding plate, and the shifting block (11) is close to the upper die (2) in a natural state.

6. A stamping die for automotive parts as defined in claim 3, wherein: the lower end face of the pressing plate (12) and the upper end face of the feeding plate are both provided with a plurality of straightening rollers (5), and the straightening rollers (5) are arranged along the width direction of the lower die (3).

7. A stamping die for automotive parts as defined in claim 3, wherein: the feeding plate (1) is positioned at one end of the lower die (3) close to the cutting insert (24).

8. A stamping die for automotive parts as defined in claim 1, wherein: one side that presses material body (4) of upper mould (2) and lower mould (3) are close to each other all is connected with along vertical direction sliding connection and supports material pole (41), all is connected with fourth elastic component (42) between support material pole (41) and the material body (4) that presses that corresponds.

9. A method of using a stamping die, applied to a stamping die for automotive parts as claimed in any one of claims 1 to 8, comprising the steps of:

s1: the material belt (300) is unreeled, and the material belt (300) is gradually unreeled and passes between the upper die (2) and the lower die (3);

s2: feeding a material belt (300), wherein the material belt (300) is fed to the other end of the die at a certain period and a certain length;

s3: stamping, namely periodically approaching and separating an upper die (2) from a lower die (3), contacting different positions of a trimming insert (22), a forming insert (23), a wedge (6) and a cutting insert (24) with a material belt (300) when approaching, feeding the material belt (300) when separating from each other, trimming the shape of a blank (200) on the material belt (300) along with feeding of the material belt (300), stamping and flanging the blank (200) by the forming insert (23), punching a square hole (107) when passing through the wedge (6), finally cutting a finished product piece (100) from the material belt (300) by the cutting insert (24), and cutting the rest of the material belt (300) by the tearing insert.

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