CN114309250A

CN114309250A - Precision mold for processing automobile parts

Info

Publication number: CN114309250A
Application number: CN202111635430.7A
Authority: CN
Inventors: 任丹
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-04-12

Abstract

The invention discloses a precision die for processing automobile parts, which belongs to the technical field of precision dies and comprises an upper die base and a supporting base, wherein a connecting sleeve base is fixedly arranged at the top of the upper die base, and the upper die base is fixedly arranged with a top machine tool driving part through the connecting sleeve base. According to the invention, the impurity removing seat moves downwards to leak the groove body formed in the top of the positioning seat, at the moment, the upper die base can enable gas of a pressing part to move downwards under the cooperation of the supporting bases on the periphery side, the groove body leaking downwards from the impurity removing seat can enable closed pressure airflow generated by pressing to move outwards through the groove body, and meanwhile, the moved airflow can take waste scraps generated by stamping under the action of pressure to enter the impurity removing box on the periphery side, so that the waste scraps can be rapidly treated at the pressing end, the conduction of die cutting pressing stress is avoided being influenced through linkage blanking cooperation of the impurity removing seat in the pressing process, the residue of the waste scraps in the die cavity of the supporting base is effectively reduced, and the processing precision is effectively improved.

Description

Precision mold for processing automobile parts

Technical Field

The invention belongs to the technical field of precision dies, and particularly relates to a precision die for machining automobile parts.

Background

The die is a die and a tool used in industrial production, a formed tool prepared by pressure pressing is generally called as a stamping forming die, when an automobile part is machined, a part with a large forming surface or accurate radian precision is machined, and in order to ensure machining precision, the part is generally pressed and formed by using a precise die.

Chinese patent document CN110465583B discloses an automobile panel stamping die, which comprises a frame, wherein a stamping pad plate is arranged in the middle of the frame, a concave die groove is arranged on the stamping pad plate, a concave die punching hole is arranged on the bottom surface of the concave die groove, and a pneumatic pressing mechanism is arranged on the stamping pad plate; the upper part of the frame is provided with a male die stamping mechanism which comprises a hydraulic machine, and a stamping end of the hydraulic machine is provided with a stamping head; the lower part of the frame is provided with a negative pressure cleaning mechanism, the negative pressure cleaning mechanism comprises a negative pressure box, the top of the negative pressure box is in sealed communication with the female die punching hole through a communication hole, the inner wall of the top of the negative pressure box is provided with an impurity removing pipe communicated with the communication hole, the inner wall of the impurity removing pipe is provided with an impurity removing brush wire, the upper end of the impurity removing pipe is provided with a sensor, the lower end of the impurity removing pipe is sleeved with an electromagnet, a control circuit of the electromagnet is electrically connected with the sensor, and the bottom of the negative pressure box is provided with a permanent magnet; the frame is also provided with an inflator pump and an air pump respectively, the air pumping end of the air pump is communicated with the negative pressure box, and the air outlet end of the inflator pump is communicated with the input end of the pneumatic pressing mechanism. The die casting die is suitable for production of automobile panels, but still has certain defects, and the casting die cannot meet the conduction of stamping stress of automobile stamping parts, if the waste materials cannot be collected well, stamping waste chips are remained in the die cavity to bring adverse effects to next die cutting treatment, the die cutting machining precision is seriously affected, and the stamping machining requirements of high-precision automobile parts cannot be met.

Disclosure of Invention

The invention aims to: the precision die for processing the automobile parts is provided for solving the problems that waste materials cannot be well collected and processed, stamping scraps are remained in a die cavity to bring adverse effects to next die cutting processing, and the die cutting processing precision is seriously affected.

In order to achieve the purpose, the invention adopts the following technical scheme:

a precision die for processing automobile parts comprises an upper die holder and a supporting base, wherein a connecting sleeve seat is fixedly installed at the top of the upper die holder, the upper die holder is fixedly installed with a top machine tool driving part through the connecting sleeve seat, purging and positioning mechanisms are arranged at four corners of the bottom of the upper die holder, impurity removing boxes are fixedly installed on the periphery of the supporting base, a collecting mechanism is movably connected to the bottom of each impurity removing box, a positioning seat is fixedly installed at the top of each impurity removing box, a lower die holder main body is fixedly installed at the bottom of an inner cavity of the supporting base, the top of each lower die holder main body corresponds to the axis of the bottom of the upper die holder, and an impurity removing mechanism is embedded at the top of each positioning seat and corresponds to the corresponding position of the corresponding lower die holder main body;

the impurity removing mechanism comprises an inward-concave impurity removing seat which is embedded in a groove body formed in the top of the positioning seat, two sides of the bottom of the impurity removing seat are fixedly connected with connecting plates, one side of each connecting plate is fixedly connected with a sliding block, two sides of the bottom of the positioning seat are fixedly connected with sliding seats, the sliding blocks are slidably connected in the sliding seats, the bottoms of the sliding blocks are fixedly connected with stabilizing telescopic rods, the stabilizing telescopic rods are fixedly connected to the bottom of an inner cavity of the supporting base, the outer side wall of each stabilizing telescopic rod is sleeved with a second spring, two ends of the second spring are fixedly connected with the sliding blocks and one side of the outer wall of each stabilizing telescopic rod respectively, one side of each sliding block is movably connected with a pull rod, the other end of each pull rod is in transmission connection with a butting column, the butting column is slidably connected in a positioning sleeve embedded in the top of the positioning seat, and the positioning sleeve is movably inserted in the top sweeping and positioning mechanism, the discharging device is used for discharging stamping scraps through downward slipping of the impurity removing seat.

As a further description of the above technical solution:

the equal fixedly connected with fixed block in slider both ends, fixed block sliding connection is in the cell body that slide one side was seted up, fixed block one side fixedly connected with backing roll, and one side backing roll lateral wall articulates there is the pull ring, pull ring and pull rod one end fixed connection, the also fixedly connected with pull ring of the pull rod other end, the pull ring articulates in the butt joint post outside, and pull ring bottom side diameter is greater than the diameter of pull ring inner chamber.

As a further description of the above technical solution:

the cross section shapes of the sliding seat and the sliding block are T-shaped, and the width of the T-shaped tail end of the sliding block is equal to the width of an inner cavity groove body of the sliding seat.

As a further description of the above technical solution:

the blowing and locating mechanism comprises locating rods fixed at four corners of the bottom of the upper die base, a first spring is fixedly connected to the outer side wall of each locating rod, a compression air bag is sleeved on the outer side wall of each locating rod, a blowing pipe is communicated with one side of each compression air bag, an impurity collecting plate is fixedly connected to the bottom of the upper die base, the blowing pipe is communicated with an inner cavity gas circuit cavity of the impurity collecting plate, and a plurality of blowing nozzles are communicated with one side of the impurity collecting plate.

As a further description of the above technical solution:

the dust separation device is characterized in that a dust separation cover is fixedly connected to the bottom of the upper die base, a dust extraction air pump is fixedly connected to the top of the upper die base, and the dust extraction air bag is communicated with a plurality of air suction nozzles fixedly connected to the inner cavity of the dust separation cover.

As a further description of the above technical solution:

collect the mechanism and include the collecting plate, collecting plate swing joint is in edulcoration incasement chamber, edulcoration incasement chamber inlays with the collecting plate corresponding position and is equipped with the flitch of arranging, flitch one end is passed through the articulated shaft and is articulated in edulcoration incasement chamber bottom, the equal fixedly connected with elastic component in flitch other end both ends, elastic component and top butt post are laminated mutually.

As a further description of the above technical solution:

the collecting plate top is inlayed and is equipped with the bag that sweeps, sweep a plurality of discharge nozzle of bag week side fixedly connected with, sweep bag bottom intercommunication wind tube seat, wind tube seat both sides all communicate there is the tuber pipe, butt post lateral wall cover is equipped with the gasbag that sweeps, tuber pipe one end sweeps the gasbag with one side and is linked together.

As a further description of the above technical solution:

the width and the length of edulcoration case all are greater than the width and the length of supporting the base inner chamber.

As a further description of the above technical solution:

the cross section of the dust separation cover is trapezoidal, and the dust separation cover is a flexible plastic cover.

As a further description of the above technical solution:

the cross section of the abutting column is circular, and the diameter of the abutting column is equal to that of the inner cavity of the positioning seat inner cavity positioning sleeve.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. in the invention, when the part needs to be subjected to die cutting and punching, the part is arranged at the top of the lower die holder main body, the upper die holder can downwards drive the upper die holder to downwards press and punch with the top of the lower die holder main body through the driving part connected with the connecting sleeve holder, when the pressing causes the deformation and expansion of the surface of the part to cause the overflow of scraps, the continuously downwards-downward upper die holder can downwards continue pressing through the positioning rods at four corners at the tail end of the stroke, so that the abutting column in the positioning sleeve can downwards drive the bottom pull ring and the pull rod to pull the supporting roller and the fixing block which are hinged at one side to downwards move under the stress, the downward movement of the fixing block can drive the sliding block to slide in the inner cavity of the sliding seat, the sliding block can drive the connecting plate to drive the top impurity removing seat to downwards move, the impurity removing seat downwards moves to leak out a groove body arranged at the top of the positioning seat, and at the moment, the upper die holder can make the gas at the pressing part downwards move under the matching of the supporting bases at the peripheral sides, and the cell body that spills downwards at the edulcoration seat can outwards shift out the confined pressure air current that the pressfitting produced through the cell body, and the sweeps that the punching press produced can be taken away to the air current that shifts out simultaneously under the pressure effect gets into all sides edulcoration incasement to can carry out rapid processing at the pressfitting terminal to the sweeps, through the linkage blanking cooperation of edulcoration seat in the pushing down in-process, avoid influencing the conduction of cross cutting pressfitting stress, effectively reduce the sweeps and support the remaining of base die cavity, effectively improve the machining precision.

2. In the invention, after the scraps enter the inner side of the impurity removing box through the airflow, the downward moving abutting column can push the sweeping airbag to discharge the gas in the sweeping airbag outwards, the discharged gas can be pressurized to enter the air conveying pipe and the air pipe seat under the action of pressure, the pressurized air in the air pipe seat is swept outwards from the axial center position of the collecting plate through the discharging nozzles on the peripheral side of the sweeping airbag, the scraps falling on the top of the collecting plate can gradually and outwards enter the impurity removing box under the action of the upper die seat, the scraps falling into the impurity removing box can further fall onto the top of the discharging plate, meanwhile, the abutting column can synchronously and downwards press an elastic piece on the bottom side under the pressing action, the elastic piece is stressed to drive the discharging plate to generate frequency vibration, the discharging plate can obliquely guide the scraps into one end of the inner side of the impurity removing box through the rotation deviation frequency vibration of the rear side articulated shaft, and further, the self-discharging treatment of the collected scraps is facilitated, through the periodic cleaning to the edulcoration case, avoid the sweeps to save the blanking that influences the sweeps.

3. In the invention, after the driving part drives the upper die base to reset upwards, the compressed air bag which is extruded when the upper die base is downwards can generate negative pressure to suck air into the impurity collecting plate and the blowing nozzle after being unfolded, the blowing nozzle which sucks air in the negative pressure can suck the waste scraps adhered to the peripheral side of the upper die base stamping part in the negative pressure mode under the action of pressure, meanwhile, the separated waste scraps can be fully adsorbed and treated under the action of the top dust suction air pump under the limiting action of the inner dust hood, the stamped waste scraps are prevented from being accumulated in the bottom stamping part of the upper die base, meanwhile, the compressed air bag can be elastically deformed by extruding the first spring when being compressed downwards, meanwhile, the first spring can support the top compressed air bag by utilizing the self-pulling force, the compressed air bag can compress air, and the output air can generate a continuous downward dust-proof air curtain after being blown out of the blowing nozzle, make the sweeps that upper die base stamping workpiece produced when the punching press can sweep the in-process at the butt of air curtain and get into the bottom downwards and collect the mechanism in, avoid the sweeps outwards to splash and save and influence location punching press precision at support base top surface, further improve the treatment accuracy of edulcoration chip removal, satisfy whole processing needs.

Drawings

FIG. 1 is a schematic perspective view of a precision mold for machining automobile parts according to the present invention;

FIG. 2 is a schematic diagram of a partially disassembled structure of a precision mold for machining automobile parts according to the present invention;

FIG. 3 is a schematic view of an exploded structure of a precision mold for machining automobile parts according to the present invention;

FIG. 4 is a schematic structural view of an impurity removing mechanism of the precision mold for machining the automobile parts, which is provided by the invention;

FIG. 5 is an enlarged schematic structural view of part A of a precision mold for machining automobile parts according to the present invention;

FIG. 6 is a schematic structural diagram of an upper die holder of the precision die for machining automobile parts according to the present invention;

FIG. 7 is a schematic structural diagram of another side view of the precision mold for machining automobile parts according to the present invention;

FIG. 8 is a schematic view of a three-dimensional structure of an impurity removing box of the precision mold for processing the automobile parts, which is provided by the invention;

FIG. 9 is a schematic structural view of a three-dimensional split of a collecting mechanism of a precision mold for processing automobile parts according to the present invention;

fig. 10 is a schematic three-dimensional structure diagram of a discharging plate of a precision mold for processing automobile parts according to the present invention.

Illustration of the drawings:

1. an upper die holder; 2. a collection mechanism; 201. a collection plate; 202. purging the bladder; 203. a discharge nozzle; 204. a duct base; 205. a wind delivery pipe; 206. compressing the air bag; 207. a discharge plate; 208. an elastic member; 209. hinging a shaft; 3. a support base; 4. an impurity removal box; 5. positioning seats; 6. a purging positioning mechanism; 601. positioning a rod; 602. a first spring; 603. purging the air bag; 604. a purge tube; 605. a trash collecting plate; 606. a dust shield; 607. a purge nozzle; 7. an impurity removal mechanism; 701. an impurity removing seat; 702. a connecting plate; 703. a slider; 704. a fixed block; 705. a support roller; 706. a pull ring; 707. a pull rod; 708. stabilizing the telescopic rod; 709. a second spring; 710. a butting post; 8. a connecting sleeve seat; 9. a dust extraction air pump; 10. the lower die holder main part.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a precision die for processing automobile parts comprises an upper die holder 1 and a supporting base 3, wherein a connecting sleeve seat 8 is fixedly installed at the top of the upper die holder 1, the upper die holder 1 is fixedly installed with a top machine tool driving part through the connecting sleeve seat 8 and is used for pressing down a stamping part of the upper die holder 1, purging and positioning mechanisms 6 are respectively arranged at four corners of the bottom of the upper die holder 1, impurity removing boxes 4 are fixedly installed on the periphery of the supporting base 3, collecting mechanisms 2 are movably connected to the bottoms of the impurity removing boxes 4 and are used for collecting stamping scraps to avoid influencing stamping precision, positioning seats 5 are fixedly installed at the tops of the impurity removing boxes 4, a lower die holder main body 10 is fixedly installed at the bottom of an inner cavity of the supporting base 3, the top of the lower die holder main body 10 corresponds to the axis of the bottom of the upper die holder 1, stamping and positioning precision is improved, impurity removing mechanisms 7 are embedded at the positions, corresponding to the positions of the tops of the positioning seats 5 and the lower die holder main body 10, and the upper die holder 1 are designed, the processing adaptability can be effectively improved;

referring to fig. 4-5, the impurity removing mechanism 7 includes an impurity removing seat 701 recessed inward, and by the arrangement of the tapered impurity removing seat 701, the supporting cooperation of the displacement of the front section of the positioning seat 5 can be improved, the conduction of the die cutting pressing stress is avoided being influenced, the residue of the waste chips in the die cavity of the supporting base 3 is effectively reduced, and the processing precision is effectively improved;

referring to fig. 3, the impurity removing seat 701 is embedded in a groove body formed in the top of the positioning seat 5, and is used for feeding the blanking material at the top of the positioning seat 5 into the impurity removing mechanism 7, the groove body leaking downwards from the impurity removing seat 701 can move out the closed pressure airflow generated by pressing through the groove body, and the moved-out airflow can take away the scraps generated by stamping under the action of pressure and feed the scraps into the impurity removing box 4 on the periphery side, so that the scraps can be rapidly processed at the pressing end;

referring to fig. 4-5, both sides of the bottom of the trash receptacle 701 are fixedly connected with a connecting plate 702, one side of the connecting plate 702 is fixedly connected with a sliding block 703, both sides of the bottom of the positioning receptacle 5 are fixedly connected with a sliding seat, the sliding block 703 is slidably connected in the sliding seat, the cross-sectional shapes of the sliding seat and the sliding block 703 are T-shaped, and the width of the T-shaped end of the sliding block 703 is equal to the width of the groove body of the inner cavity of the sliding seat, by designing the sliding block 703, the stability of the positioning receptacle 5 sliding in the sliding seat through the sliding block 703 can be effectively improved, meanwhile, by designing the cross-sectional shapes of the sliding block 703 and the sliding seat to be T-shaped, the sliding block 703 can be effectively prevented from falling off the sliding seat when moving, the sliding of the T-shaped sliding block 703 in the T-shaped sliding seat is more stable, the shaking deviation can be avoided, the sliding block can pressurize the bottom side to stabilize the telescopic rod 708, and the telescopic rod 708 can realize the self-resetting treatment of the sliding block 703 through the pressing of the second spring 709 on the top, the slider 703 can be conveniently and rapidly reset;

referring to fig. 5, a stabilizing telescopic rod 708 is fixedly connected to the bottom of the slider 703, the stabilizing telescopic rod 708 is fixedly connected to the bottom of the inner cavity of the supporting base 3, a second spring 709 is sleeved on the outer side wall of the stabilizing telescopic rod 708, two ends of the second spring 709 are respectively fixedly connected to the slider 703 and one side of the outer wall of the stabilizing telescopic rod 708, a pull rod 707 is movably connected to one side of the slider 703, it is ensured that the other end of the pull rod 707 is in transmission connection with a butting column 710, the butting column 710 is slidably connected in a positioning sleeve embedded at the top of the positioning seat 5 for improving the positioning accuracy of the fed material, the positioning sleeve is movably inserted into the top purging positioning mechanism 6 for discharging the stamping scraps through downward slipping of the impurity removing seat 701, fixed blocks 704 are fixedly connected to two ends of the slider 703, the fixed blocks 704 are slidably connected in a groove formed at one side of the slider, a supporting roller 705 is fixedly connected to one side of the fixed blocks 704, the supporting roller 705 can ensure normal conduction of the deflection tension through the hinge joint with the pull ring 706, the pulling stability is improved, the outer side wall of the supporting roll 705 on one side is hinged with a pull ring 706, the pull ring 706 is fixedly connected with one end of a pull rod 707, the other end of the pull rod 707 is also fixedly connected with the pull ring 706, the pull ring 706 is hinged on the outer side of a butting column 710, the diameter of the bottom side of the pull ring 706 is larger than that of the inner cavity of the pull ring 706, through a designed impurity removing mechanism, when the part needs to be subjected to die cutting and stamping, the part is arranged at the top of a lower die base main body 10, at the moment, an upper die base 1 can downwards drive the upper die base 1 to downwards press and punch with the top of the lower die base main body 10 through a driving part connected with a connecting sleeve base 8, when the pressing leads to the overflow of chips caused by the deformation and expansion of the surface of the part, the continuously downwards upper die base 1 can downwards continue to be pressed through the positioning rods 601 at four corners at the tail end of the stroke, so that the butting column 710 in the positioning sleeve can be stressed downwards drive the bottom pull ring 706 and the pull rod 707 to pull the supporting roll 705 and the fixing block 704 hinged on one side to downwards move, the fixed block 704 moves downwards to drive the sliding block 703 to slide in the inner cavity of the sliding seat, the sliding block 703 can slide to pull the connecting plate 702 to drive the top impurity removing seat 701 to move downwards, the impurity removing seat 701 moves downwards to leak a groove body formed in the top of the positioning seat 5, and at the moment, the upper die base 1 can enable gas of a press fit part to move downwards under the matching of the circumferential side supporting base 3.

Referring to fig. 9-10, the collecting mechanism 2 includes a collecting plate 201, the collecting plate 201 is movably connected to an inner cavity of the impurity removing box 4, a material discharging plate 207 is embedded in the inner cavity of the impurity removing box 4 corresponding to the collecting plate 201, one end of the material discharging plate 207 is hinged to the bottom of the inner cavity of the impurity removing box 4 through a hinge shaft 209, two ends of the other end of the material discharging plate 207 are fixedly connected with elastic members 208, the elastic members 208 are attached to a top abutting column 710, waste chips falling into the impurity removing box 4 can further fall into the top of the material discharging plate 207, the abutting column 710 can simultaneously press and press the bottom elastic members 208 downwards under the pressing effect, the elastic members 208 are stressed to drive the material discharging plate 207 to vibrate frequently, the material discharging plate 207 can guide the waste chips into one end of the inner side of the impurity removing box 4 in an inclined manner through the rotation deflection of a rear hinge shaft 209, thereby facilitating the self-discharging processing of the collected waste chips, and periodically cleaning the impurity removing box 4, the situation that the waste chips continuously influence the requirement of negative pressure discharging is avoided;

referring to fig. 9-10, a blowing bag 202 is embedded in the top of a collecting plate 201, a plurality of discharging nozzles 203 are fixedly connected to the periphery of the blowing bag 202, the bottom of the blowing bag 202 is communicated with an air duct base 204, air ducts 205 are respectively communicated with both sides of the air duct base 204, a blowing air bag 603 is sleeved on the outer side wall of a butting column 710, one end of the air duct 205 is communicated with the blowing air bag 603 on one side, through the designed collecting plate 201 and blowing bag 202, when waste chips enter the inner side of an impurity removing box 4 through air flow, the downward moving butting column 710 can extrude the blowing air bag 603 to discharge air inside the blowing air bag 603, the discharged air can enter the air duct 205 and the air duct base 204 under pressure, pressurized air in the air duct base 204 is blown outward from the axial center position of the collecting plate 201 through the discharging nozzles 203 on the periphery of the blowing bag 202, so that waste chips falling on the top of the collecting plate 201 can gradually enter the impurity removing box 4 outward under the downward action of an upper die holder 1, meanwhile, the discharging nozzles 203 annularly arranged outside the blowing bag 202 can facilitate blowing treatment of the waste chips, so that the discharging treatment capacity is improved;

please refer to fig. 7, wherein, the width and the length of the impurity removing box 4 are both larger than the width and the length of the inner cavity of the supporting base 3, the cross section of the abutting column 710 is circular, the diameter of the abutting column 710 is equal to the diameter of the inner cavity of the positioning sleeve of the inner cavity of the positioning seat 5, through the designed impurity removing box 4, the feeding processing of the impurity removing scraps can be ensured through the expansion of the inner diameter, the circular abutting column 710 can effectively ensure the rapid conduction of the abutting stress, and the abutting column 710 is closely matched with the positioning sleeve preset at the top of the positioning seat 5 to improve the conduction of the abutting stress.

Referring to fig. 6, the purging and positioning mechanism 6 includes a positioning rod 601 fixed at four corners of the bottom of the upper die holder 1, the outer side wall of the positioning rod 601 is fixedly connected with a first spring 602, the outer side wall of the positioning rod 601 is sleeved with a compression airbag 206, the compression airbag 206 can be elastically deformed by extruding the first spring 602 when being compressed downward, meanwhile, the first spring 602 can support the top compression airbag 206 by using self-pulling force, the compression airbag 206 can be forced to blow when being compressed, and the output gas can generate a continuous downward dust-separation air curtain after being blown out by the purging nozzle 607, so that waste chips generated by stamping of a stamping part of the upper die holder 1 can enter the bottom collecting mechanism 2 downward in the abutting and purging process of the air curtain, one side of the compression airbag 206 is communicated with a purging pipe 604, the bottom of the upper die holder 1 is fixedly connected with a impurity collecting plate 605, the purging pipe 604 is communicated with an inner cavity of the impurity collecting plate 605, one side of the impurity collecting plate 605 is communicated with a plurality of blowing nozzles 607, the bottom of the upper die holder 1 is fixedly connected with a dust separation cover 606, the cross section of the dust separation cover 606 is trapezoidal, the dust separation cover 606 is a flexible plastic cover, and the dust separation cover 606 can block splashed waste chips and can prevent external dust from entering the inner side of the upper die holder 1 during pressing through the designed dust separation cover 606;

referring to fig. 1 and 6, a dust extraction air pump 9 is fixedly connected to the top of the upper die holder 1, the dust extraction air bag is communicated with a plurality of air suction nozzles fixedly connected to the inner cavity of the dust-isolating cover 606, the blowing nozzle 607 can control the strength of negative pressure air suction by the designed blowing nozzle 607, and a valve is arranged on the surface of the blowing nozzle 607 to prevent the waste chips from entering the compression air bag 206 during the suction process, after the driving part drives the upper die holder 1 to reset upwards, the compressed air bag 206 squeezed when the upper die holder 1 is down can generate negative pressure to suck air into the impurity collecting plate 605 and the blowing nozzle 607 after being unfolded, the blowing nozzle 607 sucking the waste chips adhered to the periphery of the stamping part 1 of the upper die holder can suck the waste chips under the negative pressure, and the separated waste chips can be fully adsorbed by the limiting function of the inner dust-isolating cover 606 under the action of the top dust extraction air pump 9, avoid the sweeps of punching press to save in 1 bottom stamping workpiece of upper die base, can guarantee the absorption of negative pressure state to the sweeps, avoid scattering of dust excessive to the negative pressure at 1 top of upper die base can be blockked by the pressfitting work piece, and the back is received with the pressfitting in the extraction of negative pressure simultaneously, avoids bringing the influence to the punching press blanking of bottom side sweeps.

The working principle is as follows: when the device is used, a part is placed at the top of the lower die holder main body 10, an external machine tool switch driving part is controlled to downwards drive the upper die holder 1 to downwards press and punch with the top of the lower die holder main body 10, the continuously downwards upper die holder 1 can downwards continue to press and drive the abutting column 710 in the positioning sleeve to downwards drive the bottom pull ring 706 and the pull rod 707 to pull the supporting roller 705 and the fixing block 704 hinged to one side to downwards move through the positioning rod 601 at the four corners at the stroke end, the fixing block 704 downwards moves to drive the sliding block 703 to pull the connecting plate 702 to drive the top impurity removing seat 701 to downwards move, the impurity removing seat 701 downwards moves and leaks out of a groove body formed in the top of the positioning seat 5, at the moment, the upper die holder 1 can downwards move through gas of a pressing part under the cooperation of the circumferential side supporting base 3 to outwards move out closed pressure air flow generated by pressing, and the moved-out air flow can take waste chips generated by pressing under the action of pressure to enter the circumferential side impurity removing box 4;

after the scraps enter the inner side of the impurity removing box 4 through air flow, the downward moving abutting column 710 can enable the internal air to be discharged outwards through extruding the blowing air bag 603, the discharged air can enter the air conveying pipe 205 and the air pipe seat 204 in a pressurizing manner under the action of pressure and is blown outwards from the axis position of the collecting plate 201 through the discharging nozzles 203 on the peripheral side of the blowing air bag 202, the scraps falling onto the top of the collecting plate 201 can gradually enter the impurity removing box 4 outwards under the downward action of the upper die holder 1 and fall onto the top of the discharging plate 207, the abutting column 710 can synchronously press the bottom side elastic member 208 downwards under the pressing effect, the elastic member 208 is stressed to drive the discharging plate 207 to generate frequency vibration, the discharging plate 207 can obliquely guide the scraps into one end on the inner side of the impurity removing box 4 through the rotating deflection of the rear side hinge shaft 209, and after more scraps are accumulated, one side cover plate of the impurity removing box 4 can be opened to take out the scraps;

after the driving part drives the upper die holder 1 to reset upwards, the extruded compression air bag 206 generates negative pressure to suck air into the impurity collecting plate 605 and the blowing nozzle 607 after the upper die holder 1 is unfolded downwards, the blowing nozzle 607 sucking negative pressure sucks the waste chips adhered to the peripheral side of the stamping part of the upper die holder 1 under the action of pressure, the separated waste chips can be fully adsorbed under the action of the top dust-sucking air pump 9 under the limiting action of the inner dust-separating cover 606, the punched waste chips are prevented from being accumulated in the stamping part at the bottom of the upper die holder 1, meanwhile, the compression air bag 206 can be elastically deformed by extruding the first spring 602 when compressed downwards, meanwhile, the first spring 602 supports the top compression air bag 206 by utilizing the self-pulling force, the compression air bag 206 can be stressed to blow air when compressed, and the output air can generate a continuous downward dust-separating air curtain after being blown out by the blowing nozzle 607, the sweeps produced by the stamping parts of the upper die holder 1 during stamping can downwards enter the bottom collecting mechanism 2 in the process of abutting and sweeping of the air curtain, after the stamping is finished, the parts finished by the stamping are taken out from the top of the lower die holder main body 10, and the impact flow is finished.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A precision die for processing automobile parts comprises an upper die holder (1) and a supporting base (3), wherein the top of the upper die holder (1) is fixedly provided with a connecting sleeve seat (8), and the upper die holder (1) is fixedly arranged with the top machine tool driving part through a connecting sleeve seat (8), it is characterized in that the four corners of the bottom of the upper die holder (1) are respectively provided with a blowing and positioning mechanism (6), the side of the supporting base (3) is fixedly provided with an impurity removing box (4), the bottom of the impurity removing box (4) is movably connected with a collecting mechanism (2), a positioning seat (5) is fixedly arranged at the top of the impurity removing box (4), a lower die seat main body (10) is fixedly arranged at the bottom of the inner cavity of the supporting base (3), the top of the lower die holder main body (10) corresponds to the axis of the bottom of the upper die holder (1), an impurity removing mechanism (7) is embedded in the position, corresponding to the lower die holder main body (10), of the top of the positioning seat (5);

the impurity removing mechanism (7) comprises an inward-concave impurity removing seat (701), the impurity removing seat (701) is embedded in a groove body formed in the top of the positioning seat (5), two sides of the bottom of the impurity removing seat (701) are fixedly connected with connecting plates (702), one side of each connecting plate (702) is fixedly connected with a sliding block (703), two sides of the bottom of the positioning seat (5) are fixedly connected with sliding seats, each sliding block (703) is connected in each sliding seat in a sliding mode, the bottom of each sliding block (703) is fixedly connected with a stabilizing telescopic rod (708), each stabilizing telescopic rod (708) is fixedly connected to the bottom of an inner cavity of the supporting base (3), the outer side wall of each stabilizing telescopic rod (708) is sleeved with a second spring (709), two ends of each second spring (709) are fixedly connected with the sliding block (703) and one side of the outer wall of each stabilizing telescopic rod (708) respectively, one side of each sliding block (703) is movably connected with a pull rod (707), the other end of the pull rod (707) is connected with a butting column (710) in a transmission mode, the butting column (710) is connected in a sliding mode into a positioning sleeve embedded at the top of the positioning seat (5), and the positioning sleeve and a top blowing and positioning mechanism (6) are movably inserted and used for discharging stamping scraps through downward slipping of the impurity removing seat (701).

2. The precision mold for processing the automobile parts as claimed in claim 1, wherein both ends of the sliding block (703) are fixedly connected with a fixing block (704), the fixing block (704) is slidably connected in a groove formed in one side of the sliding seat, one side of the fixing block (704) is fixedly connected with a supporting roller (705), the outer side wall of the supporting roller (705) on one side is hinged with a pull ring (706), the pull ring (706) is fixedly connected with one end of a pull rod (707), the other end of the pull rod (707) is also fixedly connected with a pull ring (706), the pull ring (706) is hinged outside the abutting column (710), and the diameter of the bottom side of the pull ring (706) is larger than the diameter of the inner cavity of the pull ring (706).

3. The precision mold for machining the automobile parts as claimed in claim 2, wherein the cross section of the sliding seat and the sliding block (703) is T-shaped, and the width of the T-shaped end of the sliding block (703) is equal to the width of the groove body in the inner cavity of the sliding seat.

4. The precision mold for machining the automobile parts as claimed in claim 1, wherein the purging and positioning mechanism (6) comprises positioning rods (601) fixed at four corners of the bottom of the upper mold base (1), the outer side wall of each positioning rod (601) is fixedly connected with a first spring (602), the outer side wall of each positioning rod (601) is sleeved with a compression air bag (206), one side of each compression air bag (206) is communicated with a purging pipe (604), the bottom of the upper mold base (1) is fixedly connected with a sundry collecting plate (605), each purging pipe (604) is communicated with an air passage cavity of an inner cavity of the sundry collecting plate (605), and one side of each sundry collecting plate (605) is communicated with a plurality of purging nozzles (607).

5. The precision mold for machining the automobile parts as claimed in claim 4, wherein a dust-proof cover (606) is fixedly connected to the bottom of the upper mold base (1), a dust extraction air pump (9) is fixedly connected to the top of the upper mold base (1), and the dust extraction air bag is communicated with a plurality of suction nozzles fixedly connected to the inner cavity of the dust-proof cover (606).

6. The precision mold for processing the automobile parts as claimed in claim 1, wherein the collecting mechanism (2) comprises a collecting plate (201), the collecting plate (201) is movably connected to an inner cavity of the impurity removing box (4), a material discharging plate (207) is embedded in a position corresponding to the collecting plate (201) in the inner cavity of the impurity removing box (4), one end of the material discharging plate (207) is hinged to the bottom of the inner cavity of the impurity removing box (4) through a hinge shaft (209), both ends of the other end of the material discharging plate (207) are fixedly connected with elastic members (208), and the elastic members (208) are attached to the top abutting columns (710).

7. The precision mold for processing the automobile parts as claimed in claim 1, wherein a blowing bag (202) is embedded in the top of the collecting plate (201), a plurality of discharging nozzles (203) are fixedly connected to the periphery of the blowing bag (202), the bottom of the blowing bag (202) is communicated with an air duct base (204), air ducts (205) are communicated with both sides of the air duct base (204), a blowing air bag (603) is sleeved on the outer side wall of the abutting column (710), and one end of the air duct (205) is communicated with the blowing air bag (603) on one side.

8. The precision mold for machining the automobile parts as claimed in claim 1, wherein the width and length of the impurity removing box (4) are both greater than those of the inner cavity of the supporting base (3).

9. The precision mold for machining the automobile parts as claimed in claim 5, wherein the cross-sectional shape of the dust-proof cover (606) is trapezoidal, and the dust-proof cover (606) is a flexible plastic cover.

10. The precision mold for machining the automobile parts as claimed in claim 7, wherein the cross-sectional shape of the abutment post (710) is circular, and the diameter of the abutment post (710) is equal to the diameter of the inner cavity of the positioning sleeve of the inner cavity of the positioning seat (5).