CN108526281B

CN108526281B - Automatic stamping method for realizing multi-station continuous stamping of workpieces

Info

Publication number: CN108526281B
Application number: CN201810306952.4A
Authority: CN
Inventors: 应金宝
Original assignee: Foshan Shunde He Jin Industrial Co Ltd
Current assignee: Foshan Shunde He Jin Industrial Co., Ltd.
Priority date: 2018-04-08
Filing date: 2018-04-08
Publication date: 2020-01-24
Anticipated expiration: 2038-04-08
Also published as: CN108526281A

Abstract

The invention discloses an automatic stamping method for realizing multi-station continuous stamping of workpieces, wherein a feeding conveyer belt intermittently conveys workpieces to be stamped to a proper position, and the method is characterized in that each stamping cylinder synchronously acts in each stamping process, each stamping process is continuously and circularly carried out, and each stamping process comprises the following steps: the turntable rotates for 360/(2N) degrees to grab the workpiece from the lower die; rotating the turntable for 360/(2N) degrees, unloading a punched workpiece, and feeding a workpiece to be punched; the turntable rotates for 360/(2N) degrees, and each workpiece is placed in the lower die; the turntable rotates for 360/(2N) degrees again to punch the workpiece for one time; the above-described punching process is repeatedly performed. The invention provides an automatic stamping method for realizing multi-station continuous stamping of workpieces, which realizes multi-station automatic stamping of the workpieces, reduces the labor intensity of workers and improves the stamping efficiency.

Description

Automatic stamping method for realizing multi-station continuous stamping of workpieces

Technical Field

The invention relates to the field of stamping, in particular to an automatic stamping method for realizing multi-station continuous stamping of workpieces.

Background

The stamping machine is a relatively common industrial production equipment, and is especially mainly used for stamping and molding an end process of a slender material such as a section bar or a steel pipe. Especially when the work piece need carry out the punching press of multichannel process in succession, be equipped with many stamping equipment usually, every equipment accomplishes a punching press process, after accomplishing last punching press process, when getting into next stamping equipment, need the manual work to transport to stamping efficiency has further been reduced.

For this reason, for example, the present invention patent of china with publication number CN105149473A discloses a workpiece multi-station continuous stamping device, which includes a plurality of lower stamping dies and a plurality of upper stamping dies arranged on an upper stamping seat in a stamping sequence on a machine table, wherein the machine table is provided with a clamping and conveying device for conveying a workpiece to a next station, a rotating device is arranged on the machine table between two stamping stations where the workpiece needs to be steered, the distance between any one lower stamping die and an adjacent rotating device or lower stamping die is equal, the rotating device includes a fixed seat mounted on the machine table, the upper surface of the fixed seat is provided with a rotating cylinder, the fixed seat is provided with a start solenoid valve for controlling the action of the rotating cylinder, the rotating seat of the rotating cylinder is connected with a workpiece positioning block, and the workpiece positioning block is provided with two positioning pins matched with the workpiece to be processed.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art, and provides an automatic stamping method for realizing multi-station continuous stamping of workpieces, so that the multi-station automatic stamping of the workpieces is realized, the labor intensity of workers is reduced, and the stamping efficiency is improved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a realize automatic stamping method of work piece multistation continuous stamping, material loading conveyer belt will treat that the punching press work piece is intermittent type transport puts in place each, its characterized in that, in every punching press process, each punching press jar synchronous motion, every punching press process is continuous circulation goes on, every punching press process includes the following step:

(1) when the last stamping procedure is finished, the projection of the support rod along the direction of the upright post is between the projections of the two adjacent lower cross beams, then the piston rod of the stamping cylinder retracts, the turntable rotates for one 360/(2N) degree, and the projections of the upper cross beam, the lower cross beams and the support rod along the direction of the upright post are overlapped;

(2) the feeding cylinder on each supporting rod moves to the position right above the lower die along the direction of the supporting rod, a piston rod of the feeding cylinder extends out, a sucking disc on the feeding cylinder adsorbs a workpiece on the corresponding lower die, the sucking disc drives the workpiece to ascend, and at the moment, each lower die is empty;

(3) the turntable rotates by 360/(2N) degrees, the projection of each supporting rod on the turntable is positioned between each corresponding upper cross beam and each corresponding lower cross beam, one feeding cylinder loaded with a punched workpiece moves outwards on the corresponding supporting rod, the punched workpiece on the turntable falls onto the discharging conveyer belt, meanwhile, the feeding cylinder on the adjacent supporting rod without the punched workpiece moves outwards to the upper part of the discharging conveyer belt, and after the sucking disc adsorbs the punched workpiece, the feeding cylinder resets and moves to the upper part of the lower die again;

(4) the turntable rotates by 360/(2N) degrees, the projections of the upper beam, the lower beam and the support rod are superposed along the direction of the upright column, the piston rod of each feeding cylinder extends out, the workpiece on each sucker falls into the corresponding lower die, and the piston rod of each feeding cylinder is reset;

(5) the turntable rotates by 360/(2N) degrees, the projection of the support rod along the direction of the upright column is between the projections of the two adjacent lower cross beams, and the upper die on each upper cross beam moves downwards to realize the one-time stamping of the workpiece in the corresponding lower die;

(6) and (5) repeating the steps (1) to (5) in a circulating manner, wherein one workpiece is completely punched every time, and meanwhile, a new workpiece to be punched needs to be grabbed from the feeding conveyor belt.

As an improvement, in the step (3), after the workpiece to be punched is fed to the lower die, the electromagnet corresponding to the bottom of the lower die is electrified.

And (5) descending the upper die on each upper cross beam in a mode that a piston rod of a stamping cylinder on each upper cross beam extends out, and the piston rod of the stamping cylinder drives the corresponding upper die to descend to be matched with the lower die to perform primary stamping on the workpiece.

And the middle part of the upright post is provided with a necking part, the turntable is rotatably sleeved on the necking part, the bottom of the necking part is provided with a hollow motor, the output shaft of the hollow motor is hollow, the necking part penetrates through the output shaft of the hollow motor, the output shaft of the hollow motor is provided with a fixing plate, the fixing plate is annularly provided with a plurality of lifting cylinders, and the output ends of the lifting cylinders are fixedly connected with the bottom of the turntable. The hollow motor is utilized to drive the turntable to rotate intermittently, and when the turntable needs to be lifted, the piston rods of the lifting cylinders extend out or retract simultaneously, so that the turntable can be lifted up and down.

In the step (2) or (4), when each feeding cylinder needs to go down, the piston rod of the lifting cylinder retracts to drive the whole turntable to go down, and the feeding cylinders on the supporting rods fall down along with the turntable at the same time; when each feeding cylinder is required to go upwards, the piston rod of the lifting cylinder extends out to jack up the whole turntable, and the feeding cylinders on the supporting rods simultaneously ascend along with the turntable.

Improve again, the top of sucking disc is provided with the air pump, is provided with a plurality of air cocks that communicate with the air pump on the downside of sucking disc, and the air pump is breathed in, produces the negative pressure, can adsorb the work piece under the sucking disc, when needs unloading or when unloading, the air pump then blows, and work piece and sucking disc take place to break away from, realize that the work piece drops.

Compared with the prior art, the invention has the advantages that: the upper cross beam and the lower cross beam are fixedly arranged on the upright post, the projections of the upper cross beam and the lower cross beam are vertically superposed, the number N of the upper cross beams is the stamping times required by a workpiece, the upper cross beam is provided with a stamping cylinder and an upper die, the lower cross beam is provided with a lower die, the stamping cylinder drives the upper die to move downwards, the upper die and the lower die are matched, the workpiece can be stamped at one time, each supporting rod is fixed on a turntable, the turntable is rotatably arranged on the upright post and rotates intermittently, the rotating angle of the turntable is 360/(2N) each time, namely, after the turntable rotates once, each supporting rod is positioned right above the lower cross beam, a feeding cylinder on each supporting rod realizes the grabbing of the workpiece on the lower die, then, the turntable rotates once again, the supporting rod is positioned between two adjacent lower cross beams, at the moment, the feeding cylinder on one supporting rod unloads the stamped workpiece onto a conveyer, meanwhile, one less workpiece is arranged on the rotary table, the feeding cylinder on the support rod adjacent to one support rod grabs a new workpiece to be punched from the feeding conveyor belt, then the rotary table continues to rotate once, at the moment, each support rod moves from the upper lower cross beam to the lower cross beam adjacent to the upper cross beam, the workpiece to be punched of the new feeding realizes a first punching process, and other workpieces complete a next punching process, so that the workpieces on the rotary table can move from the upper lower die to the lower die to realize continuous punching processes, and simultaneously, after each punching process is completed, a new workpiece to be punched is loaded while one punched workpiece is unloaded, thereby ensuring the continuous punching processes, realizing the multi-station automatic punching of the workpieces, and reducing the labor intensity, the stamping efficiency is improved.

Drawings

FIG. 1 is a schematic structural diagram of an automatic stamping device for implementing multi-station continuous stamping of workpieces according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the rotary lifting of the turntable according to the embodiment of the present invention;

fig. 3 is a schematic diagram of the steps of the automatic stamping method according to the embodiment of the invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

First, the present invention will be described with respect to an automatic press apparatus for performing multi-station continuous pressing of workpieces. As shown in fig. 1 and 2, the automatic stamping device for realizing multi-station continuous stamping of workpieces in this embodiment includes a platform 1, a column 11, an upper beam 3, a stamping cylinder 31, an upper die 32, a support rod 6, a feeding cylinder 61, a suction cup 62, a feeding conveyer belt 71, a discharging conveyer belt 72, a turntable 5, a lower beam 4, a lower die 41, a hollow motor 8, a lifting cylinder 9, and a fixing plate 81.

Wherein, a vertical column 11 is vertically arranged on the platform 1, the top of the vertical column 11 is radially and fixedly provided with N evenly distributed upper crossbeams 3, N is more than or equal to 2, the outer end of each upper crossbeam 3 is provided with a stamping cylinder 31, the output end of the stamping cylinder 31 is provided with an upper die 32 for stamping a workpiece once, the middle part of the vertical column 11 is rotatably provided with a turntable 5, the turntable 5 intermittently rotates, the rotating angle of each time of the turntable 5 is 360/(2N), the peripheral wall of the turntable 5 is radially provided with supporting rods 6 with the same number as that of the upper crossbeams 3, each supporting rod 6 is provided with a feeding cylinder 61 along the length direction of the supporting rod 6 in a sliding way, furthermore, the specific moving mode of the feeding cylinder 61 on the supporting rod 6 is that a lead screw is arranged on the supporting rod 6 along the length direction of the supporting rod 6, one end of the lead screw is connected with a, the feeding motor rotates to drive the lead screw to rotate, the lead screw drives the feeding cylinder 61 to move along the length direction of the support rod 6 through the feeding nut, when the feeding motor rotates reversely, correspondingly, the feeding cylinder 61 moves on the support rod 6 in the reverse direction, the output end of each feeding cylinder 61 is provided with a sucker 62, an air pump is arranged above the sucker 62, the lower side surface of the sucker 62 is provided with a plurality of air nozzles communicated with the air pump, the air pump sucks air to generate negative pressure, so that a workpiece can be adsorbed below the sucker 62, when blanking or discharging is needed, the air pump blows air, the workpiece is separated from the suckers to realize the falling of the workpiece, a feeding conveyer belt 71 is arranged below one support rod, a discharging conveyer belt 72 is arranged below the support rod adjacent to one support rod, and lower cross beams 4 with the same number as that of the upper cross beams 3 are radially and fixedly arranged at the bottom of the upright post, the position of each lower cross beam 4 is vertically overlapped with the corresponding upper cross beam 3, and each lower cross beam 4 is provided with a lower die 41 corresponding to the upper die 32.

In addition, in the invention, the bottom of the lower die 41 is provided with the electromagnet, when the workpiece to be punched on the feeding conveyer belt 71 is transferred onto the lower die 41 by the feeding cylinder 61, the electromagnet corresponding to the bottom of the lower die 41 is electrified to generate a magnetic field, so that the workpiece to be punched is completely adsorbed in the lower die 41, the workpiece to be punched is ensured to be kept stable in the following multiple punching process, and when the workpiece is completely punched, the electromagnet is powered off, the sucking disc 62 of the feeding cylinder 61 can adsorb the workpiece to be punched, and then the workpiece is rotated onto the discharging conveyer belt 72.

In addition, the turntable 5 and each support rod 6 can be lifted up and down along the upright post 11 as a whole, after the lower die 41 is loaded or unloaded, the piston rod of the feeding cylinder 61 needs to retract for a certain distance, so that the suction cup 62 and the lower die 41 are prevented from colliding in the rotating process of the turntable 5, in addition, as the workpieces on the lower dies 41 are synchronously carried out, the turntable 5 is lifted up and down as a whole, when the turntable 5 is lifted up, the suction cup 62 on each feeding cylinder 61 can completely leave the corresponding lower die 41, and the independent retraction of each feeding cylinder 61 is avoided.

Further, in the embodiment of the present invention, the lifting and rotating structure of the rotating disc 5 is specifically that a necking portion 111 is formed in the middle of the upright post 11, the rotating disc 5 is rotatably sleeved on the necking portion 111, a hollow motor 8 is disposed at the bottom of the necking portion 111, an output shaft 82 of the hollow motor 8 is hollow, the necking portion 111 penetrates through the output shaft 82 of the hollow motor 8, a fixing plate 81 is disposed on the output shaft 82 of the hollow motor 8, a plurality of lifting cylinders 9 are circumferentially disposed on the fixing plate 81, and output ends of the lifting cylinders 9 are fixedly connected with the bottom of the rotating disc 5. Utilize hollow motor 8 to drive carousel 5 intermittent type to rotate, and when carousel 5 need go up and down, the piston rod of each lift cylinder 9 stretches out simultaneously or retracts, can realize the oscilaltion of carousel 5.

As shown in fig. 3, the automatic stamping method for realizing multi-station continuous stamping of workpieces according to the present invention includes that the feeding conveyer belt 71 intermittently conveys each workpiece to be stamped to a position, each stamping cylinder 31 synchronously operates in each stamping process, each stamping process is continuously and circularly performed, and each stamping process includes the following steps:

(1) when the previous stamping process is finished, the projection of the support rod 6 along the direction of the upright post is between the projections of the two adjacent lower cross beams 4, then the piston rod of the stamping cylinder 31 retracts, the turntable 5 rotates for 360/(2N) degrees, and the projections of the upper cross beam 3, the lower cross beams 4 and the support rod 6 along the direction of the upright post 11 are superposed;

(2) the feeding cylinder 61 on each supporting rod 6 moves to the position right above the lower die 41 along the direction of the supporting rod 6, the piston rod of the feeding cylinder 61 extends out, the sucking disc 62 on the feeding cylinder 61 sucks the workpiece on the corresponding lower die 41, the sucking disc 62 drives the workpiece to ascend, and at the moment, each lower die 41 is empty;

(3) the turntable 5 rotates by 360/(2N) degrees again, the projection of each supporting rod 6 on the turntable 5 is positioned between each corresponding upper beam 3 and lower beam 4, one feeding cylinder loaded with a punched workpiece moves outwards on the corresponding supporting rod, the punched workpiece on the turntable 5 falls onto the discharging conveyer belt 72, meanwhile, the feeding cylinder on the adjacent supporting rod not loaded with the workpiece moves outwards above the discharging conveyer belt 71, and after the sucking disc adsorbs the punched workpiece, the feeding cylinder 61 resets and moves above the lower die 41 again;

(4) the turntable 5 rotates by 360/(2N) degrees, the projections of the upper cross beam 3, the lower cross beam 4 and the support rod 6 are superposed along the direction of the upright post 11, the piston rod of each feeding cylinder 61 extends out, the workpiece on each suction cup 62 falls into the corresponding lower die 41, and the piston rod of the feeding cylinder 61 is reset;

(5) the turntable 5 rotates by 360/(2N) degrees again, the projection of the support rod 6 along the direction of the upright post 11 is between the projections of the two adjacent lower cross beams 4, and the upper die 32 on each upper cross beam 3 moves downwards to realize the one-time stamping of the workpiece in the corresponding lower die 41;

(6) and (5) repeating the steps (1) to (5) in a circulating manner, wherein each time one workpiece is punched completely, a new workpiece to be punched is required to be grabbed from the feeding conveyer belt 71.

Further, in the step (3), after the workpiece to be punched is loaded to the lower die 41, the electromagnet corresponding to the bottom of the lower die 41 is energized.

Further, in the step (5), the upper die 32 on each upper beam 3 descends in such a manner that the piston rod of the stamping cylinder 31 on each upper beam 3 extends out, and the piston rod of the stamping cylinder 31 drives the corresponding upper die 32 to descend to be matched with the lower die 41 to perform primary stamping of the workpiece.

Furthermore, in step (2) or (4), when each feeding cylinder 61 needs to descend, the piston rod of the lifting cylinder 9 retracts to drive the whole turntable 5 to descend, and the feeding cylinders 61 on the support rods 6 descend along with the turntable 5 at the same time; when each feeding cylinder 61 needs to go upwards, the piston rod of the lifting cylinder 9 extends out to jack up the whole turntable 5, and the feeding cylinders 61 on the supporting rods 6 simultaneously ascend along with the turntable 5.

In summary, each upper beam 3 and each lower beam 4 of the invention are fixedly arranged on the upright post 11, the projections of the upper beam 3 and the lower beam 4 are vertically overlapped, the number N of the upper beams 3 is the stamping times required by the workpiece, the upper beam 3 is provided with a stamping cylinder 31 and an upper die 32, the lower beam 4 is provided with a lower die 41, the stamping cylinder 31 drives the upper die 32 to move downwards, the upper die 32 and the lower die 41 are assembled, thus realizing one-time stamping process of the workpiece, each supporting rod 6 is fixed on the turntable 5, the turntable 5 is rotatably arranged on the upright post 11, the turntable 5 rotates at intervals, the rotating angle of the turntable 5 each time is 360/(2N), namely, after one-time rotation of the turntable 5, each supporting rod 6 is positioned right above the lower beam 4, the feeding cylinder 61 on each supporting rod 6 realizes grabbing of the workpiece on the lower die 41, then, the turntable 5 rotates once again, the supporting rods 6 are positioned between two adjacent, at the moment, the feeding cylinder on one of the supporting rods discharges the punched workpiece onto the discharging conveyer belt 72, meanwhile, because the number of the workpieces on the rotary table 5 is one less, the feeding cylinder on the supporting rod adjacent to one of the supporting rods grabs a new workpiece to be punched from the feeding conveyer belt 71, then, the rotary table 5 continues to rotate once, at the moment, each supporting rod 6 moves from the upper part of the upper lower cross beam to the adjacent lower cross beam, the newly-loaded workpiece to be punched realizes the first punching process, other workpieces complete the next punching process, in this way, the circulation is carried out, the workpieces on the rotary table 5 can move from the upper lower die to the lower die, the continuous punching process is realized, and after each punching process is completed, a new workpiece to be punched is loaded while the workpiece is unloaded, the circulation continuous operation of the stamping process is ensured, so that the multi-station automatic stamping of the workpiece is realized, the labor intensity of workers is reduced, and the stamping efficiency is improved.

Claims

1. An automatic stamping method for realizing multi-station continuous stamping of workpieces is characterized in that in each stamping process, each stamping cylinder (31) synchronously acts, each stamping process is continuously and circularly carried out, and each stamping process comprises the following steps:

(1) when the previous stamping process is finished, the projection of the support rod (6) along the direction of the upright post (11) is between the projections of two adjacent lower cross beams (4), then the piston rod of the stamping cylinder (31) retracts, the turntable (5) rotates for one 360/(2N) degrees, the projections of the upper cross beam (3), the lower cross beams (4) and the support rod (6) along the direction of the upright post (11) are superposed, wherein N is the number of the upper cross beams (3), N is more than or equal to 2, and the number N of the upper cross beams (3) is the stamping times required by a workpiece;

(2) the feeding cylinder (61) on each supporting rod (6) moves to the position right above the lower die (41) along the direction of the supporting rod (6), a piston rod of the feeding cylinder (61) extends out, a sucking disc (62) on the feeding cylinder (61) sucks a workpiece on the corresponding lower die (41), the sucking disc (62) drives the workpiece to ascend, and at the moment, each lower die (41) is empty;

(3) the turntable (5) rotates by 360/(2N) degrees again, the projection of each supporting rod (6) on the turntable (5) is positioned between each corresponding upper beam (3) and lower beam (4), one feeding cylinder (61) loaded with the punched workpiece moves outwards on the corresponding supporting rod (6), the punched workpiece on the turntable (5) falls onto the discharging conveyer belt (72), meanwhile, the feeding cylinder on the adjacent supporting rod without the punched workpiece moves outwards to the upper part of the discharging conveyer belt (71), and after the sucker adsorbs the punched workpiece, the feeding cylinder resets and moves to the upper part of the lower die again;

(4) the turntable (5) rotates by 360/(2N) degrees, the projections of the upper beam (3), the lower beam (4) and the support rod (6) are superposed along the direction of the upright post (11), the piston rod of each feeding cylinder (61) extends out, the workpiece on each sucker (62) falls into the corresponding lower die (41), and the piston rod of the feeding cylinder (61) is reset;

(5) the turntable (5) rotates for 360/(2N) degrees, the projection of the support rod (6) along the direction of the upright post (11) is between the projections of two adjacent lower cross beams (4), and the upper die (32) on each upper cross beam (3) moves downwards to realize the one-time stamping of the workpiece in the corresponding lower die (41);

(6) and (5) repeating the steps (1) to (5) in a circulating manner, wherein each time one workpiece is punched completely, a new workpiece to be punched is required to be grabbed from the feeding conveyer belt (71).

2. The automatic stamping method for realizing multi-station continuous stamping of workpieces according to claim 1, wherein: in the step (3), after the workpiece to be punched is fed to the lower die (41), the electromagnet corresponding to the bottom of the lower die (41) is electrified.

3. The automatic stamping method for realizing multi-station continuous stamping of workpieces according to claim 1, wherein: in the step (5), the upper die (32) on each upper cross beam (3) descends in a manner that a piston rod of a stamping cylinder (31) on each upper cross beam (3) extends out, and the piston rod of the stamping cylinder (31) drives the corresponding upper die (32) to descend to be matched with the lower die (41) for one-time stamping of the workpiece.

4. The automatic stamping method for realizing multi-station continuous stamping of workpieces according to claim 1, wherein: the middle part of stand (11) is formed with a throat (111), carousel (5) rotate the cover locate on throat (111), the bottom of throat (111) is provided with a cavity motor (8), output shaft (82) cavity of cavity motor (8), throat (111) pass output shaft (82) of cavity motor (8), be provided with a fixed plate (81) on output shaft (82) of cavity motor (8), it has a plurality of lift cylinders (9) to encircle to be provided with on fixed plate (81), the output of lift cylinder (9) and the bottom fixed connection of carousel (5).

5. The automatic stamping method for realizing multi-station continuous stamping of workpieces according to claim 4, wherein: in the step (2) or (4), when each feeding cylinder (61) needs to descend, the piston rod of the lifting cylinder (9) retracts to drive the whole turntable (5) to descend, and the feeding cylinders (61) on the support rods (6) descend along with the turntable (5) at the same time; when each feeding cylinder (61) needs to go upwards, the piston rod of the lifting cylinder (9) extends out to jack up the whole turntable (5), and the feeding cylinders (61) on the supporting rods (6) rise along with the turntable (5) simultaneously.

6. The automatic stamping method for realizing multi-station continuous stamping of workpieces according to claim 1, wherein: the top of sucking disc (62) is provided with the air pump, is provided with a plurality of air cocks that communicate with the air pump on the downside of sucking disc (62), and the air pump is breathed in, produces the negative pressure, can adsorb the work piece under sucking disc (62), when needs unloading or when unloading, the air pump then blows, and work piece and sucking disc (62) take place to break away from, realize that the work piece drops.