Automobile part stamping die and stamping method

Abstract

The invention relates to the technical field of stamping dies, and discloses an automobile part stamping die and stamping method.The automobile part stamping die comprises a main body, a hollow box is fixedly connected to the inner wall of the bottom of the main body, a hydraulic rod is fixedly connected to the interior of the top of the main body, and the output end of the hydraulic rod is fixedly connected with an upper die; the upper die is slidably connected to the outer surface of the main body, and the top of the hollow box is slidably connected with a male die. When a piston plate slides downwards, negative pressure is generated in the first hollow sleeve, and at the moment, the negative pressure can adsorb a plate through a round hole, so that the plate can be attached to the top of the first hollow sleeve, the plate can be effectively fixed, movement of the plate in the stamping process is reduced, and the stamping quality of the plate is improved. And it is ensured that the plates cannot slide or be dislocated in the stamping process, and the precision and consistency of the plates in the stamping process are improved.

Description

Technical Field

[0001] The invention relates to the technical field of stamping dies, in particular to a stamping die and a stamping method for automobile parts. Background Art

[0002] A stamping die is a die used for cold stamping. Its main function is to process metal or non-metal materials into parts or semi-finished products of various shapes and sizes. During the stamping process, the die is installed on a press, and the pressure of the press causes the material to separate or plastically deform, thereby obtaining the desired parts.

[0003] Generally, when a sheet is stamped into a desired shape after being stamped, the sheet is basically placed between the upper and lower dies between the stamping device, and the upper and lower dies are closed by the pressure of the hydraulic rod. The sheet is stamped into the desired shape under strong pressure. Generally, when the existing device is used for stamping, in order to protect the safety of the workers, there is basically no stabilizing mechanism on the sheet when the workers place the sheet. When the upper and lower dies are closed to stamp the sheet, at the moment of stamping, the surface of the sheet will be subjected to greater pressure, which may cause the sheet to slip or dislocate easily at the moment of being stamped, affecting the stamping accuracy of the sheet during stamping and the consistency of the sheet after forming. Summary of the invention

[0004] The object of the present invention is to provide a stamping die and a stamping method for automobile parts to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a stamping die for automobile parts, comprising a main body, a hollow box fixedly connected to the bottom inner wall of the main body, a hydraulic rod fixedly connected to the top inner part of the main body, an upper die fixedly connected to the output end of the hydraulic rod, the upper die slidably connected to the outer surface of the main body, a convex die slidably connected to the top of the hollow box, and further comprising;

[0007] The transmission mechanism comprises two bidirectional threaded sleeves slidably connected to the top of the hollow box, the bottom of the bidirectional threaded sleeve penetrates the top inner wall of the hollow box and extends to the inside, the inside of the bidirectional threaded sleeve is slidably connected with an insertion rod, the surface of the insertion rod is fixedly connected with a worm, a spring is fixedly connected between the worm and the bidirectional threaded sleeve, the outer surface of the worm is provided with two worm wheels, the two worm wheels are rotatably connected to the inside of the hollow box, the two worm wheels are meshingly connected, the worm wheel close to the worm is meshingly connected to the worm, the side wall of the worm wheel is rotatably connected to two rotating rods 1, the two rotating rods 1 are eccentrically arranged with the worm wheel, a connecting plate 1 is rotatably connected between the two rotating rods 1 at the bottom, and a hollow plate is rotatably connected between the two rotating rods 1 at the top;

[0008] The adsorption mechanism includes a hollow rod fixedly connected to the top of the connecting plate, the top of the hollow rod penetrates the side wall of the hollow plate and extends to the outside, a hollow plate is fixedly connected to the side of the hollow plate away from the connecting plate, the hollow plate is slidably connected to the outer surface of the hollow rod, and two rectangular frames are opened on the side wall of the hollow rod.

[0009] Furthermore, a fixing frame 1 is slidably connected inside the rectangular frame, an end of the fixing frame 1 close to the piston plate is fixedly connected to the piston plate, an end of the hollow rod away from the connecting plate 1 is fixedly connected to a hollow sleeve 1, a side wall of the hollow sleeve 1 is provided with a plurality of circular holes, and the top of the piston plate is slidably connected inside the hollow sleeve 1;

[0010] Wherein, the bottom of the male mold is fixedly connected to the top outer wall of the two hollow sleeves.

[0011] Furthermore, a rotating mechanism is provided inside the hollow box, and the rotating mechanism includes a plurality of C-shaped plates fixedly connected to the inner wall of the top of the piston plate, and the end of the C-shaped plate away from the piston plate is rotatably connected to a connecting plate 2, and a hollow frame is provided on the top of the connecting plate 2, and the end of the hollow frame close to the piston plate is rotatably connected to the outer surface of the hollow sleeve 1, and the interior of the hollow frame is rotatably connected to an intermediate rod.

[0012] Furthermore, a supporting mechanism is provided inside the hollow frame, and the supporting mechanism includes an L-rod rotatably connected inside the hollow frame, the bottom of the L-rod is rotatably connected to the second connecting plate, the end of the L-rod away from the second connecting plate is rotatably connected to a transmission rod, and the end of the transmission rod away from the L-rod is rotatably connected to a lifting plate.

[0013] Furthermore, the side of the lifting plate away from the transmission rod is rotatably connected to the intermediate rod, the top of the lifting plate is fixedly connected to two rubber shafts 1, the top of the rubber shaft 1 is fixedly connected to a sliding rod, the end of the sliding rod close to the L rod penetrates the outer wall of the lifting plate and extends to the outside, the extended ends of the two sliding rods are rotatably connected to a T-shaped rod, and the end of the T-shaped rod away from the lifting plate is rotatably connected to the side wall of the L rod.

[0014] Furthermore, a fixing mechanism is provided inside the hollow frame, and the fixing mechanism includes a transmission rod 2 rotatably connected to the end of the L-rod away from the connecting plate 2, the end of the transmission rod 2 away from the L-rod is rotatably connected to an elastic rod, the outer surface of the elastic rod is slidably connected to a fixed box, the fixed box is fixedly connected to the inside of the hollow frame, the ends of the fixed boxes away from the transmission rod 2 are fixedly connected to piston rods, the piston rods are slidably connected to the inside of the fixed box, the outer surfaces of the two piston rods are slidably connected to three-way pipes, the three-way pipes are fixedly connected to the inside of the fixed box, the side of the fixed box away from the transmission rod 2 is fixedly connected to a rubber plate, and the side of the rubber plate away from the fixed box is connected to the three-way pipe.

[0015] Furthermore, an auxiliary mechanism is provided on the outer surface of the fixed box, and the auxiliary mechanism includes a hollow sleeve 2 fixedly connected to the end of the piston rod away from the tee pipe, an elastic plate is fixedly connected to the inside of the hollow sleeve 2, the end of the hollow sleeve 2 away from the piston rod penetrates the outer wall of the fixed box and extends to the outside, a fixing frame 2 is provided on the outer surface of the extended end of the hollow sleeve 2, a spiral rod is rotatably connected to the inside of the hollow sleeve 2, and a fixing frame 2 is rotatably connected to the outer surface of the spiral rod, the fixing frame 2 is fixedly connected to the side wall of the fixed box, and the end of the elastic plate close to the spiral rod is in contact with the surface of the spiral rod.

[0016] Furthermore, a shaking mechanism is provided on the side wall of the fixed box, and the shaking mechanism includes a rotating rod 2 rotatably connected between the two fixed frames 2, a gear is fixedly connected to the left side of the rotating rod 2, and two rubber shafts 2 are provided on the side wall of the rotating rod 2, and one end of the rubber shaft 2 close to the spiral rod is fixedly connected to the spiral rod, and the outer surface of the rubber shaft 2 is fixedly connected with teeth, and the teeth are meshed with the gear, and the outer surfaces of the two rubber shafts 2 are slidably connected with an adsorption box, an adsorption cavity is provided inside the adsorption box, and a suction cup is fixedly connected to the side wall of the adsorption box, and a pull plate is rotatably connected to the middle part of the rotating rod 2, and the pull plate is slidably connected to the side wall of the adsorption box.

[0017] Furthermore, a method for using a stamping die for automobile parts is provided, wherein the stamping die for automobile parts comprises the following steps:

[0018] S1: First, place the sheet to be punched on the top of the hollow box and make the sheet above the punch. Then start the hydraulic rod, which will drive the upper die to move downward. When the upper die moves downward, the concave part in the middle will be above the sheet.

[0019] S2: Then the edge of the upper mold will squeeze the bidirectional threaded sleeve, and the bidirectional threaded sleeve will move downward after being squeezed and drive the worm to rotate. When the worm rotates, it will drive the worm wheel to rotate. When the worm wheel rotates, it will drive the connecting plate 1 to rise through the hollow plate;

[0020] S3: When the connecting plate rises, it will drive the punch to rise and squeeze the bottom of the plate. After being squeezed, the bottom of the plate will enter the mold groove at the bottom of the upper mold to complete the stamping work.

[0021] The present invention has the following beneficial effects:

[0022] 1. In the present invention, when the bidirectional threaded sleeve is squeezed by the upper mold and moves downward, the downward movement of the bidirectional threaded sleeve will squeeze the insertion rod through the internal thread groove. After the insertion rod is squeezed, it will drive the worm to rotate. When the worm rotates, it will drive one of the worm wheels to rotate. When one of the worm wheels rotates, it will drive the other worm wheel to rotate, so that the two worm wheels rotate in opposite directions. When the worm wheel rotates, it will drive the connecting plate to rise through the rotating rod 1, and at the same time, it will drive the hollow plate to descend through the rotating rod 1. When the connecting plate 1 rises, the connecting plate 1 will push the hollow rod to move upward. When the hollow rod moves upward, the top of the hollow sleeve 1 will be attached to the The piston plate is closed on the surface of the plate and pushes the plate to rise. At the same time, when the connecting plate rises and the hollow plate falls, the descent of the hollow plate will drive the piston plate to slide downward inside the hollow sleeve one. When the piston plate slides down inside the hollow sleeve one, the piston plate will generate negative pressure inside the hollow sleeve one when it slides down. At this time, the generation of negative pressure will adsorb the plate through the circular hole, so that the plate can fit on the top of the hollow sleeve one, which can effectively fix the plate, reduce the movement of the plate during the stamping process, ensure that the plate will not slide or dislocate during the stamping process, and improve the accuracy and consistency of the plate during stamping.

[0023] 2. In the present invention, when the piston plate moves downward inside the hollow sleeve one, the downward movement of the piston plate will drive multiple C-shaped plates to move downward synchronously, and when the C-shaped plate moves downward, it will drive the second connecting plate to move downward synchronously. When the second connecting plate moves downward, it will push the L rod, so that the L rod rotates inside the hollow frame. When the second connecting plate pushes the L rod to rotate, it will also drive the hollow frame, so that the hollow frame rotates on the side wall of the hollow sleeve one and changes from an inclined state to a horizontal state. When the second connecting plate pushes the L rod, so that the L rod rotates inside the hollow frame, the rotation of the C-shaped plate will squeeze the lifting plate through the transmission rod, and make the lifting plate rise. At the same time, when the L rod rotates to push the lifting plate to rise, the rotation of the L rod will also pull the sliding rod through the T-shaped rod. The bottom of the hollow frame is rotated, and the sliding rod is made to slide downward. When the sliding rod slides downward, it squeezes the center of the top of the rubber shaft one. When the sliding rod squeezes the middle part of the rubber shaft one, the middle part of the rubber shaft one will be concave. At the same time, the surface of the rubber shaft one will expand outward and fit the surface of the formed sheet. At the same time, when the hollow frame rotates, the hollow frame will also make the rubber plate of the side wall of the fixed box squeeze the side wall of the sheet. When the rubber shaft one and the rubber plate on the side wall of the fixed box are fitted on the side wall of the sheet, an outward supporting force is provided from the inside of the sheet, which can effectively resist the external pressure exerted on the sheet during the stamping process, prevent the sheet from excessive deformation, enhance the stability of the sheet, and reduce wrinkling caused by excessive local force.

[0024] 3. According to the present invention, when the sheet is lowered and separated after being stamped, the L rod will be reset. When the L rod is reset, it will push the middle part of the elastic rod through the second transmission rod. When the middle part of the elastic rod is pushed by the second transmission rod, the elastic rod will expand outward. When the elastic rod expands outward, the elastic rod will push the piston rod during expansion, so that the piston rod slides relatively inside the fixed box. When the two piston rods slide relatively in the middle part of the fixed box, the relatively sliding piston rods will generate negative pressure in the middle part of the fixed box. At this time, the generation of negative pressure will form an adsorption force between the rubber plate and the stamped sheet through the middle part of the three-way pipe, so that the sheet can fit firmly with the fixed box. After that, when the device is reset, the downward movement of the hollow frame will form a pulling force inside the sheet through the adsorption force of the fixed box on the adsorbed sheet, which can offset the rebound tendency of the sheet after stamping to a certain extent, thereby improving the dimensional accuracy and shape stability of the stamped parts.

[0025] 4. In the present invention, when the elastic rod pushes the piston rod to slide, the sliding of the piston rod will drive the hollow sleeve 2 to slide synchronously. When the two piston rods move relative to each other, the elastic plate inside the hollow sleeve 2 will slide due to the helical thread on the spiral rod. When the two piston rods move in the opposite direction, the movement of the piston rod will drive the elastic plate to slide through the hollow sleeve 2. At this time, the elastic plate will squeeze the spiral rod on the reverse thread path on the surface of the spiral rod when sliding. After being pushed by the elastic plate, the spiral rod will rotate inside the fixing frame 2. When the fixing frame 2 rotates, it will drive the rubber shaft 2 to rotate. When the rubber shaft 2 rotates, its surface will be twisted and shortened. When the rubber shaft 2 shortens, it will be inside the adsorption box When the rotating rod 2 rotates, it will drive the pull plate to slide inside the adsorption box. When the pull plate slides, an adsorption force will also be formed inside the adsorption box. At this time, the adsorption force formed by the relative movement of the rubber shaft 2 will be firmly adsorbed on the side wall of the plate through the adsorption cavity and the suction cup on the adsorption box, further enhancing the pulling force of the plate through the fixed box when the hollow frame moves downward, improving the stability of the rotating mechanism when pulling the plate, reducing the scrap rate caused by excessive rebound of the plate, reducing production costs and improving production efficiency.

[0026] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the present invention;

[0030] Figure 3 It is a schematic diagram of the main body of the present invention;

[0031] Figure 4 It is a schematic diagram of the transmission mechanism structure of the present invention;

[0032] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0033] Figure 6It is a schematic diagram of the internal parts structure of the present invention;

[0034] Figure 7 It is a schematic diagram of the structure of the rotating mechanism of the present invention;

[0035] Figure 8 An exploded view of the support mechanism of the present invention;

[0036] Fig. 9 For the present invention Figure 8 Enlarged view of point B in the middle;

[0037] Fig.10 It is a schematic diagram of the structure of the shaking mechanism of the present invention;

[0038] Fig.11 It is a flow chart of the stamping method of the present invention.

[0039] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0040] In the figure: 1. main body; 101. hollow box; 102. hydraulic rod; 103. upper mold; 104. punch; 2. transmission mechanism; 201. two-way threaded sleeve; 202. worm; 203. worm wheel; 204. rotating rod 1; 205. connecting plate 1; 206. hollow plate; 3. adsorption mechanism; 301. piston plate; 302. hollow rod; 303. hollow sleeve 1; 304. fixed frame 1; 305. rectangular frame; 4. rotating mechanism; 401. C-shaped plate; 402. connecting plate 2; 403. hollow frame; 404. middle rod; 5. support Support mechanism; 501, L rod; 502, transmission rod; 503, lifting plate; 504, rubber shaft one; 505, sliding rod; 506, T-shaped rod; 6, fixing mechanism; 601, transmission rod two; 602, elastic rod; 603, fixing box; 604, piston rod; 605, three-way pipe; 7, auxiliary mechanism; 701, hollow sleeve two; 702, elastic plate; 703, screw rod; 704, fixing frame two; 8, shaking mechanism; 801, rotating rod two; 802, rubber shaft two; 803, adsorption box; 804, adsorption chamber; 805, pulling plate. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1-Figure 11As shown, the present invention is a stamping die for automobile parts, comprising a main body 1, a hollow box 101 is fixedly connected to the bottom inner wall of the main body 1, a hydraulic rod 102 is fixedly connected to the top of the main body 1, an upper die 103 is fixedly connected to the output end of the hydraulic rod 102, the upper die 103 is slidably connected to the outer surface of the main body 1, a punch 104 is slidably connected to the top of the hollow box 101, and further comprising;

[0043] The transmission mechanism 2 includes two bidirectional threaded sleeves 201 slidably connected to the top of the hollow box 101, the bottom of the bidirectional threaded sleeve 201 penetrates the top inner wall of the hollow box 101 and extends to the inside, the inside of the bidirectional threaded sleeve 201 is slidably connected with an insertion rod, the surface of the insertion rod is fixedly connected with a worm 202, a spring is fixedly connected between the worm 202 and the bidirectional threaded sleeve 201, and the outer surface of the worm 202 is provided with two worm wheels 203, the two worm wheels 203 are connected to the inner wall of the hollow box 101, and the two worm wheels 203 are connected to the inner wall of the hollow box 101. The wheel 203 is rotatably connected inside the hollow box 101, the two worm wheels 203 are meshed with each other, the worm wheel 203 close to the worm 202 is meshed with the worm 202, the side wall of the worm wheel 203 is rotatably connected with two rotating rods 1 204, the two rotating rods 1 204 are eccentrically arranged with the worm wheel 203, a connecting plate 1 205 is rotatably connected between the two rotating rods 1 204 at the bottom, and a hollow plate 206 is rotatably connected between the two rotating rods 1 204 at the top;

[0044] The adsorption mechanism 3 includes a hollow rod 302 fixedly connected to the top of the connecting plate 205, the top of the hollow rod 302 penetrates the side wall of the hollow plate 206 and extends to the outside, the side of the hollow plate 206 away from the connecting plate 205 is fixedly connected with a hollow plate 206, the hollow plate 206 is slidably connected to the outer surface of the hollow rod 302, and the side wall of the hollow rod 302 is provided with two rectangular frames 305. When the bidirectional threaded sleeve 201 is squeezed by the upper mold 103 and moves downward, The downward movement of the bidirectional threaded sleeve 201 will squeeze the insertion rod through the internal thread groove. After being squeezed, the insertion rod will drive the worm 202 to rotate. When the worm 202 rotates, it will drive one of the worm wheels 203 to rotate. When one of the worm wheels 203 rotates, it will drive the other worm wheel 203 to rotate, so that the two worm wheels 203 rotate in opposite directions. When the worm wheel 203 rotates, it will drive the connecting plate 205 to rise through the rotating rod 204, and at the same time, it will drive the hollow plate 206 to descend through the rotating rod 204.

[0045] The interior of the rectangular frame 305 is slidably connected with a fixing frame 304, and one end of the fixing frame 304 close to the piston plate 301 is fixedly connected to the piston plate 301, and one end of the hollow rod 302 away from the connecting plate 205 is fixedly connected with a hollow sleeve 303, and the side wall of the hollow sleeve 303 is provided with a plurality of circular holes, and the top of the piston plate 301 is slidably connected to the interior of the hollow sleeve 303;

[0046] Among them, the bottom of the punch 104 is fixedly connected to the top outer walls of the two hollow sleeves 303. When the connecting plate 205 rises, the connecting plate 205 will push the hollow rod 302 to move upward. When the hollow rod 302 moves upward, the top of the hollow sleeve 303 will fit on the surface of the plate and push the plate to rise. At the same time, when the connecting plate 205 rises and the hollow plate 206 descends, the descent of the hollow plate 206 will drive the piston plate 301 to make the piston plate 301 slide downward inside the hollow sleeve 303.

[0047] The hollow box 101 is provided with a rotating mechanism 4 inside, and the rotating mechanism 4 includes a plurality of C-shaped plates 401 fixedly connected to the inner wall of the top of the piston plate 301, and the end of the C-shaped plate 401 away from the piston plate 301 is rotatably connected to the connecting plate 2 402, and the top of the connecting plate 2 402 is provided with a hollow frame 403, and the end of the hollow frame 403 close to the piston plate 301 is rotatably connected to the outer surface of the hollow sleeve 1 303, and the interior of the hollow frame 403 is rotatably connected with an intermediate rod 404, and when the C-shaped plate 401 moves downward, it will drive the connecting plate 2 402 to move downward synchronously, and when the connecting plate 2 402 moves downward, it will push the L rod 501 to rotate the L rod 501 inside the hollow frame 403, and when the connecting plate 2 402 pushes the L rod 501 to rotate, it will also drive the hollow frame 403, so that the hollow frame 403 rotates on the side wall of the hollow sleeve 1 303 and changes from an inclined state to a horizontal state.

[0048] A supporting mechanism 5 is provided inside the hollow frame 403, and the supporting mechanism 5 includes an L-rod 501 rotatably connected to the inside of the hollow frame 403, the bottom of the L-rod 501 is rotatably connected to the second connecting plate 402, the end of the L-rod 501 away from the second connecting plate 402 is rotatably connected to the transmission rod 502, and the end of the transmission rod 502 away from the L-rod 501 is rotatably connected to the lifting plate 503, and the second connecting plate 402 pushes the L-rod 501, so that when the L-rod 501 rotates inside the hollow frame 403, the rotation of the C-shaped plate 401 will squeeze the lifting plate 503 through the transmission rod 502, and make the lifting plate 503 rise, and at the same time, when the L-rod 501 rotates to push the lifting plate 503 to rise, the rotation of the L-rod 501 will also pull the bottom of the sliding rod 505 through the T-rod 506, so that the sliding rod 505 slides downward.

[0049] The lifting plate 503 is rotatably connected to the middle rod 404 at one side away from the transmission rod 502, and two rubber shafts 504 are fixedly connected to the top of the lifting plate 503, and a sliding rod 505 is fixedly connected to the top of the rubber shaft 504, and one end of the sliding rod 505 close to the L rod 501 penetrates the outer wall of the lifting plate 503 and extends to the outside, and the extended ends of the two sliding rods 505 are rotatably connected to a T-shaped rod 506, and one end of the T-shaped rod 506 away from the lifting plate 503 is rotatably connected to the side wall of the L rod 501, and when the sliding rod 505 slides downward, it squeezes the center of the top of the rubber shaft 504, and when the sliding rod 505 squeezes the middle part of the rubber shaft 504, the middle part of the rubber shaft 504 will be concave, and at the same time, the surface of the rubber shaft 504 will expand outward and fit the surface of the formed plate.

[0050] The interior of the hollow frame 403 is provided with a fixing mechanism 6, and the fixing mechanism 6 includes a transmission rod 601 rotatably connected to the end of the L rod 501 away from the connecting plate 402, and the end of the transmission rod 601 away from the L rod 501 is rotatably connected to the elastic rod 602, and the outer surface of the elastic rod 602 is slidably connected to a fixing box 603, and the fixing box 603 is fixedly connected to the interior of the hollow frame 403, and the ends of the fixing boxes 603 away from the transmission rod 601 are fixedly connected to piston rods 604, and the piston rods 604 are slidably connected to the interior of the fixing box 603, and the outer surfaces of the two piston rods 604 are slidably connected to three-way pipes 605, and the three-way pipes 605 are fixedly connected Inside the fixed box 603, a rubber plate is fixedly connected to one side of the fixed box 603 away from the second transmission rod 601, and the side of the rubber plate away from the fixed box 603 is connected to the three-way pipe 605. When the plate is lowered and disengaged after being stamped, the L rod 501 will be reset. When the L rod 501 is reset, it will push the middle part of the elastic rod 602 through the second transmission rod 601. When the middle part of the elastic rod 602 is pushed by the second transmission rod 601, the elastic rod 602 will expand outward. When the elastic rod 602 expands outward, the elastic rod 602 will push the piston rod 604 during expansion, so that the piston rod 604 slides relatively inside the fixed box 603.

[0051] The outer surface of the fixed box 603 is provided with an auxiliary mechanism 7, and the auxiliary mechanism 7 includes a hollow sleeve 701 fixedly connected to the end of the piston rod 604 away from the tee pipe 605, and the interior of the hollow sleeve 701 is fixedly connected with an elastic plate 702, and the end of the hollow sleeve 701 away from the piston rod 604 penetrates the outer wall of the fixed box 603 and extends to the outside, and the outer surface of the extended end of the hollow sleeve 701 is provided with a fixing frame 704, and the interior of the hollow sleeve 701 is rotatably connected with a spiral rod 703, and the spiral rod 703 The outer surface is rotatably connected to a second fixing frame 704, and the second fixing frame 704 is fixedly connected to the side wall of the fixed box 603. One end of the elastic plate 702 close to the spiral rod 703 contacts the surface of the spiral rod 703. When the two piston rods 604 slide relatively in the middle of the fixed box 603, the relatively sliding piston rods 604 will generate negative pressure in the middle of the fixed box 603. At this time, the generation of negative pressure will form an adsorption force between the rubber plate and the stamped plate through the middle of the three-way pipe 605, so that the plate can fit firmly with the fixed box 603.

[0052] The side wall of the fixed box 603 is provided with a shaking mechanism 8, and the shaking mechanism 8 includes a rotating rod 801 rotatably connected between the two fixed frames 704, and a gear is fixedly connected to the left side of the rotating rod 801. The side wall of the rotating rod 801 is provided with two rubber shafts 802, and one end of the rubber shaft 802 close to the spiral rod 703 is fixedly connected to the spiral rod 703, and the outer surface of the rubber shaft 802 is fixedly connected with teeth, and the teeth are meshed with the gear. The outer surfaces of the two rubber shafts 802 are slidably connected with an adsorption box 803, and an adsorption cavity 804 is opened inside the adsorption box 803. The side wall of the adsorption box 803 is fixedly connected with a suction cup. The middle part of the rotating rod 801 is rotatably connected with a pull plate 805, and the pull plate 805 is slidably connected to the side wall of the adsorption box 803. When the fixed frame 704 rotates, it will drive the rubber shaft 802 to rotate. When the rubber shaft 802 rotates, its surface will appear to be twisted and shortened. When the rubber shaft 802 shortens, it will move relatively inside the adsorption box 803. At the same time, when the rubber shaft 802 rotates, the rotation of the rubber shaft 802 will drive the gear on the rotating rod 801 to rotate through the teeth. When the gear rotates, it will drive the rotating rod 801 to rotate synchronously. When the rotating rod 801 rotates, it will drive the pull plate 805 to make the pull plate 805 slide inside the adsorption box 803.

[0053] A method for using a stamping die for automobile parts, the stamping die for automobile parts, the method comprising the following steps:

[0054] S1: First, place the sheet to be punched on the top of the hollow box 101, and make the sheet above the punch 104, then start the hydraulic rod 102, which will drive the upper die 103 to move downward when working. When the upper die 103 moves downward, the concave part in the middle will be above the sheet;

[0055] S2: Then the edge of the upper mold 103 squeezes the bidirectional threaded sleeve 201, and the bidirectional threaded sleeve 201 moves downward after being squeezed and drives the worm 202 to rotate. When the worm 202 rotates, it drives the worm wheel 203 to rotate. When the worm wheel 203 rotates, it drives the connecting plate 205 to rise through the hollow plate 206;

[0056] S3: When the connecting plate 205 rises, it will drive the punch 104 to rise and squeeze the bottom of the plate. After being squeezed, the bottom of the plate will enter the mold groove at the bottom of the upper mold 103 to complete the stamping work.

[0057] When in use, first place the plate to be stamped on the top of the hollow box 101, and make the plate above the punch 104, then start the hydraulic rod 102, and the hydraulic rod 102 will drive the upper mold 103 to move downward when working. When the upper mold 103 moves downward, the recessed part in the middle will be above the plate, and then the edge of the upper mold 103 will squeeze the bidirectional threaded sleeve 201, and the bidirectional threaded sleeve 201 will move downward after being squeezed and drive the worm 202 to rotate, and the rotation of the worm 202 will drive the worm wheel 203 to rotate, and the rotation of the worm wheel 203 will drive the connecting plate 205 to rise through the hollow plate 206, and the rising of the connecting plate 205 will drive the punch 104 to rise and squeeze the bottom of the plate, and the bottom of the plate will enter the mold groove at the bottom of the upper mold 103 after being squeezed, and the stamping work is completed.

[0058] When the bidirectional threaded sleeve 201 is squeezed by the upper mold 103 and moves downward, the downward movement of the bidirectional threaded sleeve 201 will squeeze the insertion rod through the internal thread groove. After being squeezed, the insertion rod will drive the worm 202 to rotate. When the worm 202 rotates, it will drive one of the worm wheels 203 to rotate. When one of the worm wheels 203 rotates, it will drive the other worm wheel 203 to rotate, so that the two worm wheels 203 rotate in opposite directions. When the worm wheel 203 rotates, it will drive the connecting plate 1 205 to rise through the rotating rod 1 204, and at the same time, it will drive the hollow plate 206 to descend through the rotating rod 1 204. When the connecting plate 1 205 rises, the connecting plate 1 205 will push the hollow rod 302 to move up, and when the hollow rod 302 moves up, the hollow sleeve The top of the hollow plate 303 will fit on the surface of the plate and push the plate to rise. At the same time, when the connecting plate 205 rises and the hollow plate 206 falls, the descent of the hollow plate 206 will drive the piston plate 301 to slide downward inside the hollow sleeve 303. When the piston plate 301 slides down inside the hollow sleeve 303, the piston plate 301 will generate negative pressure inside the hollow sleeve 303 when sliding down. At this time, the generation of negative pressure will adsorb the plate through the circular holes, so that the plate can fit on the top of the hollow sleeve 303, which can effectively fix the plate, reduce the movement of the plate during the stamping process, ensure that the plate will not slide or dislocate during the stamping process, and improve the accuracy and consistency of the plate during stamping.

[0059] When the piston plate 301 moves downward inside the hollow sleeve 1 303, the downward movement of the piston plate 301 will drive multiple C-shaped plates 401 to move downward synchronously. When the C-shaped plate 401 moves downward, it will drive the second connecting plate 402 to move downward synchronously. When the second connecting plate 402 moves downward, it will push the L rod 501 to make the L rod 501 rotate inside the hollow frame 403. When the second connecting plate 402 pushes the L rod 501 to rotate, it will also drive the hollow frame 403 to make the hollow frame 403 rotate on the side wall of the hollow sleeve 1 303 and change from an inclined state to a horizontal state. When the second connecting plate 402 pushes the L rod 501 to make the L rod 501 rotate inside the hollow frame 403, the rotation of the C-shaped plate 401 will squeeze the lifting plate 503 through the transmission rod 502, and make the lifting plate 503 rise. At the same time, when the L rod 501 rotates and pushes the lifting plate 503 to rise, the L rod 501 The rotation of will also pull the bottom of the sliding rod 505 through the T-shaped rod 506, so that the sliding rod 505 slides downward, and the sliding rod 505 will squeeze the center of the top of the rubber shaft 504 when sliding rod 505 squeezes the middle part of the rubber shaft 504, and the middle part of the rubber shaft 504 will be concave, and at the same time, the surface of the rubber shaft 504 will expand outward and fit the surface of the formed plate. At the same time, when the hollow frame 403 rotates, the hollow frame 403 will also make the rubber plate on the side wall of the fixed box 603 squeeze the side wall of the plate. When the rubber shaft 504 and the rubber plate on the side wall of the fixed box 603 fit on the side wall of the plate, an outward supporting force is provided from the inside of the plate, which can effectively resist the external pressure on the plate during the stamping process, prevent the plate from excessive deformation, enhance the stability of the plate, and reduce wrinkling caused by excessive local force.

[0060] When the L rod 501 is rotating, the L rod 501 will pull the elastic rod 602 through the transmission rod 2 601. When the elastic rod 602 is pulled, it will drive the piston rod 604, so that the piston rod 604 moves relatively inside the three-way pipe 605. After the sheet is stamped, the hydraulic rod 102 is started. When the hydraulic rod 102 works, it will drive the upper mold 103 to disengage from the two-way threaded sleeve 201. At this time, the spring at the bottom of the two-way threaded sleeve 201 will push the two-way threaded sleeve 201, so that the two-way threaded sleeve 201 rises. When the two-way threaded sleeve 201 rises, it will drive the rotating rod 1 204 to rotate through the worm gear 203. When the rotating rod 1 204 rotates, its internal structure will be reset.

[0061] When the sheet is lowered and separated after being stamped, the L rod 501 will reset. When the L rod 501 resets, it will push the middle part of the elastic rod 602 through the second transmission rod 601. When the middle part of the elastic rod 602 is pushed by the second transmission rod 601, the elastic rod 602 will expand outward. When the elastic rod 602 expands outward, the elastic rod 602 will push the piston rod 604 when expanding, so that the piston rod 604 slides relatively inside the fixed box 603. When the two piston rods 604 slide relatively in the middle of the fixed box 603, When sliding, the relatively sliding piston rod 604 will generate negative pressure in the middle of the fixed box 603. At this time, the generation of negative pressure will form an adsorption force between the rubber plate and the stamped plate through the middle of the three-way pipe 605, so that the plate can fit firmly with the fixed box 603. Later, when this device is reset, the downward movement of the hollow frame 403 will form a pulling force inside the plate through the adsorption force of the fixed box 603 on the adsorbed plate, which can offset the rebound tendency of the plate after stamping to a certain extent, thereby improving the dimensional accuracy and shape stability of the stamped parts.

[0062] When the elastic rod 602 pushes the piston rod 604 to slide, the sliding of the piston rod 604 will drive the hollow sleeve 701 to slide synchronously. When the two piston rods 604 move relative to each other, the elastic plate 702 inside the hollow sleeve 701 will slide due to the spiral forward thread on the spiral rod 703. When the two piston rods 604 move in the opposite direction, the movement of the piston rod 604 will drive the elastic plate 702 to slide through the hollow sleeve 701. At this time, the elastic plate 702 will squeeze the spiral rod 703 on the reverse thread path on the surface of the spiral rod 703 when sliding. After being pushed by the elastic plate 702, the spiral rod 703 will rotate inside the fixing frame 704. When the fixing frame 704 rotates, it will drive the rubber shaft 802 to rotate. When the rubber shaft 802 rotates, its surface will be twisted and shortened. When the rubber shaft 802 shortens, it will The interior of the auxiliary box 803 moves relatively. At the same time, when the rubber shaft 802 rotates, the rotation of the rubber shaft 802 will drive the gear on the rotating rod 801 to rotate through the teeth. When the gear rotates, it will drive the rotating rod 801 to rotate synchronously. When the rotating rod 801 rotates, it will drive the pulling plate 805 to make the pulling plate 805 slide inside the adsorption box 803. When the pulling plate 805 slides, an adsorption force will also be formed inside the adsorption box 803. At this time, the adsorption force formed by the relative movement of the rubber shaft 802 will be firmly adsorbed on the side wall of the plate through the adsorption cavity 804 and the suction cup on the adsorption box 803, further enhancing the pulling force of the plate through the fixed box 603 when the hollow frame 403 moves downward, improving the stability of the rotating mechanism 4 when pulling the plate, reducing the scrap rate caused by excessive rebound of the plate, reducing production costs and improving production efficiency.

[0063] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A stamping die for automobile parts, comprising a main body (1), a hollow box (101) fixedly connected to the inner wall of the bottom of the main body (1), a hydraulic rod (102) fixedly connected to the top of the main body (1), an upper die (103) fixedly connected to the output end of the hydraulic rod (102), the upper die (103) slidably connected to the outer surface of the main body (1), and a convex die (104) slidably connected to the top of the hollow box (101), characterized in that: Also includes; The transmission mechanism (2) comprises two bidirectional threaded sleeves (201) slidably connected to the top of the hollow box (101), the bottom of the bidirectional threaded sleeve (201) penetrates the top inner wall of the hollow box (101) and extends to the inside, the inside of the bidirectional threaded sleeve (201) is slidably connected with an insertion rod, the surface of the insertion rod is fixedly connected with a worm (202), a spring is fixedly connected between the worm (202) and the bidirectional threaded sleeve (201), and the outer surface of the worm (202) is provided with two worm wheels (203), the two worm wheels (203) 203) is rotatably connected inside the hollow box (101), the two worm wheels (203) are meshedly connected, the worm wheel (203) close to the worm (202) is meshedly connected with the worm (202), the side wall of the worm wheel (203) is rotatably connected with two rotating rods (204), the two rotating rods (204) and the worm wheel (203) are eccentrically arranged, a connecting plate (205) is rotatably connected between the two rotating rods (204) at the bottom, and a hollow plate (206) is rotatably connected between the two rotating rods (204) at the top; The adsorption mechanism (3) comprises a hollow rod (302) fixedly connected to the top of a connecting plate (205); the top of the hollow rod (302) penetrates through the side wall of a hollow plate (206) and extends to the outside; a hollow plate (206) is fixedly connected to a side of the hollow plate (206) away from the connecting plate (205); the hollow plate (206) is slidably connected to the outer surface of the hollow rod (302); and two rectangular frames (305) are provided on the side wall of the hollow rod (302).

2. The automotive parts stamping die according to claim 1, characterized in that: The interior of the rectangular frame (305) is slidably connected to a fixing frame (304), one end of the fixing frame (304) close to the piston plate (301) is fixedly connected to the piston plate (301), and one end of the hollow rod (302) away from the connecting plate (205) is fixedly connected to a hollow sleeve (303), a side wall of the hollow sleeve (303) is provided with a plurality of circular holes, and the top of the piston plate (301) is slidably connected to the interior of the hollow sleeve (303); Wherein, the bottom of the male mold (104) is fixedly connected to the top outer walls of the two hollow sleeves (303).

3. The automotive parts stamping die according to claim 2, characterized in that: A rotating mechanism (4) is arranged inside the hollow box (101), and the rotating mechanism (4) includes a plurality of C-shaped plates (401) fixedly connected to the inner wall of the top of the piston plate (301), and one end of the C-shaped plate (401) away from the piston plate (301) is rotatably connected to a second connecting plate (402), and a hollow frame (403) is arranged on the top of the second connecting plate (402), and one end of the hollow frame (403) close to the piston plate (301) is rotatably connected to the outer surface of the first hollow sleeve (303), and an intermediate rod (404) is rotatably connected inside the hollow frame (403).

4. The automotive parts stamping die according to claim 3, characterized in that: A support mechanism (5) is arranged inside the hollow frame (403), and the support mechanism (5) comprises an L-rod (501) rotatably connected inside the hollow frame (403), the bottom of the L-rod (501) is rotatably connected to the second connecting plate (402), one end of the L-rod (501) away from the second connecting plate (402) is rotatably connected to the transmission rod (502), and one end of the transmission rod (502) away from the L-rod (501) is rotatably connected to the lifting plate (503).

5. The stamping die for automobile parts according to claim 4, characterized in that: The side of the lifting plate (503) away from the transmission rod (502) is rotatably connected to the intermediate rod (404); the top of the lifting plate (503) is fixedly connected to two rubber shafts (504); the top of the rubber shaft (504) is fixedly connected to a sliding rod (505); one end of the sliding rod (505) close to the L rod (501) penetrates the outer wall of the lifting plate (503) and extends to the outside; the extended ends of the two sliding rods (505) are rotatably connected to a T-shaped rod (506); one end of the T-shaped rod (506) away from the lifting plate (503) is rotatably connected to the side wall of the L rod (501).

6. The automotive parts stamping die according to claim 5, characterized in that: A fixing mechanism (6) is arranged inside the hollow frame (403), and the fixing mechanism (6) comprises a second transmission rod (601) rotatably connected to one end of the L-rod (501) away from the second connecting plate (402), and the second transmission rod (601) is rotatably connected to one end of the L-rod (501) away from the second connecting plate (402), and the elastic rod (602) is slidably connected to the outer surface of the elastic rod (602) with a fixing box (603), and the fixing box (603) is fixedly connected to the inside of the hollow frame (403), and the fixing box (603) is away from the transmission rod (501). One end of each of the two movable rods (601) is fixedly connected to a piston rod (604), and the piston rod (604) is slidably connected to the interior of the fixed box (603). The outer surfaces of the two piston rods (604) are slidably connected to a three-way pipe (605), and the three-way pipe (605) is fixedly connected to the interior of the fixed box (603). A rubber plate is fixedly connected to the side of the fixed box (603) away from the second transmission rod (601), and the side of the rubber plate away from the fixed box (603) is connected to the three-way pipe (605).

7. The automotive parts stamping die according to claim 6, characterized in that: The outer surface of the fixed box (603) is provided with an auxiliary mechanism (7), and the auxiliary mechanism (7) includes a hollow sleeve (701) fixedly connected to the end of the piston rod (604) away from the three-way pipe (605); the interior of the hollow sleeve (701) is fixedly connected with an elastic plate (702); the end of the hollow sleeve (701) away from the piston rod (604) penetrates the outer wall of the fixed box (603) and extends to the outside; the outer surface of the extended end of the hollow sleeve (701) is provided with a fixing frame (704); the interior of the hollow sleeve (701) is rotatably connected with a spiral rod (703); the outer surface of the spiral rod (703) is rotatably connected with a fixing frame (704); the fixing frame (704) is fixedly connected to the side wall of the fixed box (603); the end of the elastic plate (702) close to the spiral rod (703) contacts the surface of the spiral rod (703).

8. The automotive parts stamping die according to claim 7, characterized in that: The side wall of the fixed box (603) is provided with a shaking mechanism (8), and the shaking mechanism (8) includes a rotating rod (801) rotatably connected between the two fixed frames (704), a gear is fixedly connected to the left side of the rotating rod (801), and two rubber shafts (802) are provided on the side wall of the rotating rod (801), and one end of the rubber shaft (802) close to the spiral rod (703) is fixedly connected to the spiral rod (703), and the rubber shaft The outer surface of the second (802) is fixedly connected with teeth, and the teeth are meshed with gears. The outer surfaces of the two rubber shafts (802) are slidably connected with an adsorption box (803), and an adsorption cavity (804) is provided inside the adsorption box (803). The side wall of the adsorption box (803) is fixedly connected with a suction cup. The middle part of the rotating rod (801) is rotatably connected with a pull plate (805), and the pull plate (805) is slidably connected to the side wall of the adsorption box (803).

9. A method for using a stamping die for automobile parts, characterized in that: Using the automobile parts stamping die as claimed in claim 8, the method comprises the following steps: S1: First, place the sheet to be punched on the top of the hollow box (101), and make the sheet be located above the punch (104), then start the hydraulic rod (102), which will drive the upper die (103) to move downward during operation. When the upper die (103) moves downward, the concave portion in the middle thereof will be located above the sheet; S2: Then, the edge of the upper mold (103) squeezes the bidirectional threaded sleeve (201), and the bidirectional threaded sleeve (201) moves downward after being squeezed and drives the worm (202) to rotate. When the worm (202) rotates, it drives the worm wheel (203) to rotate. When the worm wheel (203) rotates, it drives the connecting plate 1 (205) to rise through the hollow plate (206); S3: When the connecting plate 1 (205) rises, it drives the punch (104) to rise and squeeze the bottom of the plate. After being squeezed, the bottom of the plate enters the die groove at the bottom of the upper die (103), completing the stamping work.

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