CN111745016A

CN111745016A - Double-station continuous stamping method

Info

Publication number: CN111745016A
Application number: CN202010526877.XA
Authority: CN
Inventors: 应金宝
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2020-10-09

Abstract

The invention discloses a double-station continuous stamping method which is characterized by comprising the following steps: step S1, loading plate strips; step S2, feeding the plates by a feeding trough; step S3, stamping the plate by the feeding chute, rotating the crankshaft to drive the first connecting rod and the third connecting rod to synchronously swing downwards, moving the lower male die and the lower female die in the transverse sliding chute in opposite directions, and stamping the plate by closing the lower male die and the lower female die; step S4, feeding an upper template material; step S5, separating the lower male die and the lower female die from each other, blowing by a lower discharging air pump, and discharging the plate after the punching in the lower female die falls into the discharging hole; step S6, the crankshaft further rotates, and the upper top die and the upper bottom die are matched; step S7, repeat step S2; step S8, unloading the plate after the punching of the upper bottom die is finished; and step S9, repeating steps 3 to 8. The invention provides a double-station continuous stamping method, which realizes double-station continuous stamping and has the characteristics of low manufacturing cost and high stamping efficiency.

Description

Double-station continuous stamping method

Technical Field

The invention relates to the field of stamping, in particular to a double-station continuous stamping method.

Background

At present, the traditional mechanical punching machine is vertical. On a vertical punching machine, the multi-station punching is difficult to realize, and a numerical control workbench is often needed; the multi-station vertical stamping of the numerical control workbench is adopted, the structure is complicated, and the rigidity of the workbench is poor; in addition, the cost of the whole system is high.

For example, the chinese patent publication No. CN108435869A discloses "a continuous stamping method", which includes the following steps: the method comprises the following steps: adjusting the longitudinal arm and the cantilever to enable the punching head to be aligned to a position to be punched on the punching station, starting the cutter turret and switching the cutter on the punching head; step two: after the tool on the stamping head is replaced in the first step, the workpiece is placed into a conveying barrel, the workpiece is clamped and fixed by a clamping unit, and then the conveying barrel is placed into a storage bin; step three: after the conveying barrel is placed into the storage bin in the second step, the station rotating tower is started to rotate, the workpiece is taken out from the storage bin, the workpiece is placed in a right position, and the workpiece is punched and conveyed by the punching head in sequence; step four: and after the processed workpiece is conveyed out in the third step, taking out the workpiece in the conveying barrel, returning the conveying barrel with the workpiece taken out to the storage bin, and continuing to take the workpiece in turn.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art, provides a double-station continuous stamping method, realizes double-station continuous stamping, and has the characteristics of low manufacturing cost and high stamping efficiency.

The technical scheme adopted by the invention for solving the technical problems is as follows: a double-station continuous stamping method is characterized by comprising the following steps:

step S1, loading the plate strip, and placing the plate strip with longer length in a loading channel of a material rail;

step S2, feeding plates at a feeding groove, intermittently rotating a conveying roller on a material rail, inserting the front end of the plate strip into the feeding groove of a punching table, cutting the plate strip by a cutting knife on the punching table, and leaving the plates to be punched at the feeding groove of a cross sliding way;

step S3, stamping a plate material in the feeding groove, driving a crankshaft to rotate by a driving assembly, driving a first connecting rod and a third connecting rod to synchronously swing downwards by the crankshaft, driving a lower male die to move in a transverse slideway by the first connecting rod through a left connecting rod, driving a lower female die to move in the transverse slideway by the third connecting rod through a right connecting rod, moving the lower male die and the lower female die in opposite directions, and stamping the plate material left in the feeding groove by the lower male die and the lower female die in a matched mode;

step S4, feeding a plate at the upper bottom die, and putting the plate to be punched into the upper bottom die at the top of the punching table;

step S5, unloading the punched plate at the feeding chute, separating the lower male die and the lower female die with the continuous rotation of the crankshaft, moving the punched plate with the lower female die, blowing by a lower unloading air pump when the lower female die passes through the blanking hole of the stamping platform, and dropping the punched plate in the lower female die into the blanking hole to complete unloading;

step S6, stamping the upper bottom die plate, driving the second connecting rod to move downwards by the crankshaft along with the further rotation of the crankshaft, enabling the upper top die to move downwards in the vertical slideway and the upper bottom die to be matched with each other, and completing the stamping of the plate in the upper bottom die;

step S7, repeat step S2;

step S8, unloading the plate after the punching at the upper bottom die, driving the second connecting rod to swing upwards by the crankshaft, opening the upper top die and the lower bottom die, blowing by an upper unloading air pump, and unloading the plate after the punching at the lower bottom die from an unloading port;

and S9, repeating the steps 3 to 8, and realizing double-station continuous stamping at the feeding groove and the upper bottom die.

Preferably, the driving assembly drives the crankshaft to rotate in a manner that the driving assembly comprises a flywheel connected with a crankshaft rotation center, a driving wheel and a driving motor, an output shaft of the driving motor is connected with the driving wheel, a transmission belt is connected between the flywheel and the driving wheel, the driving motor drives the flywheel to rotate through the transmission belt, the flywheel drives the crankshaft to rotate, and during rotation of the crankshaft, the first connecting rod shaft and the third connecting rod shaft have the same motion posture and are opposite to the motion posture of the second connecting rod shaft, so that the first connecting rod and the third connecting rod can synchronously move.

Preferably, the plate strip is cut into plates by feeding, after a long plate strip is placed in the feeding channel, the plate strip is driven to move forward in the feeding channel by the rotation of the conveying roller, and after the front end of the plate strip is inserted into the feeding groove and the plate strip is moved in place, the plate strip at the front end is cut off by the cutting knife, so that the plates to be punched can be left in the feeding groove.

Preferably, the blanking hole is formed in the cross sliding way and located at the running position of the lower female die.

Preferably, the discharge opening is formed in the bottom of the vertical slide way.

Compared with the prior art, the invention has the advantages that: according to the invention, the alternating motion among the three connecting rods is realized by utilizing the rotation of the crankshaft, wherein the second connecting rod drives the upper top die to move in the vertical slideway, so that the die assembly and the die opening of the upper top die and the upper bottom die are realized, and the punching of a plate is completed, thus, the top of the punching table corresponds to a vertically arranged punching station in the traditional sense; in addition, the first connecting rod and the third connecting rod on the crankshaft synchronously move to respectively drive the die assembly and the die opening between the lower male die and the lower female die, and simultaneously, the first connecting rod and the third connecting rod are matched with the plate and belt feeding mechanism to realize automatic feeding, stamping and discharging of the plate and belt.

Drawings

FIG. 1 is a method flow diagram of a two station continuous stamping method in an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a related double-station continuous stamping device in an embodiment of the invention;

FIG. 3 is a partial cross-sectional view taken at A-A in FIG. 2;

FIG. 4 is a schematic structural view of a strip feeding mechanism in an embodiment of the present invention;

FIG. 5 is a cross-sectional view taken at B-B of FIG. 4;

fig. 6 is a schematic structural view of a vertical chute on a stamping platform in an embodiment of the invention.

Detailed Description

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

First, the double-station continuous press apparatus according to the present invention will be briefly described. As shown in fig. 2 to 6, the continuous stamping device with two stations according to the present invention includes a stamping platform 1, a crankshaft 2, an upper bottom die 32, an upper top die 31, a lower male die 61, a lower female die 62, an upper discharging air pump 41, a lower discharging air pump 42, a first connecting rod 21, a second connecting rod 22, a third connecting rod 23, a left connecting rod 51, a right connecting rod 52, a driving assembly 7, and a strip feeding mechanism 8.

Wherein, an upper bottom die 32 is arranged above the stamping table 1, an upper discharging air pump 41 communicated with the cavity of the upper bottom die 32 is arranged below the upper bottom die 32, a crankshaft 2 and a driving component 7 for driving the crankshaft 2 to rotate are arranged above the stamping table 1, a first connecting rod 21, a second connecting rod 22 and a third connecting rod 23 are sequentially arranged on the crankshaft 2, the second connecting rod 22 is positioned between the first connecting rod 21 and the third connecting rod 23, the upper end of the first connecting rod on the crankshaft 2 is hinged on a first connecting rod shaft 211, the upper end of the second connecting rod 22 is hinged on a second connecting rod shaft 221, the upper end of the third connecting rod 23 is hinged on a third connecting rod shaft 231, a vertical slideway 13 which is vertically arranged is arranged on the stamping table 1, a discharging opening 131 is arranged at the bottom of the vertical slideway 13, the upper bottom die 32 is positioned at the bottom of the vertical slideway 13, an upper top die 31 is slidably arranged in the vertical slideway 13, and the lower end of, a transverse slideway 11 transversely penetrates through the lower part of the stamping table 1, an upper trough 111 which is communicated with the front side or the rear side is respectively arranged on the upper side wall and the lower side wall of the middle part of the transverse slideway 11, the distance between the two upper troughs 111 is the length width of the strip 10 for stamping, a lower male die 61 is arranged in the transverse slideway 11 on the left side of the upper trough 111 in a sliding way, a lower female die 62 is arranged in the transverse slideway 11 on the right side of the upper trough 111 in a sliding way, a left connecting rod 51 is arranged on the left side of the stamping table 1, a right connecting rod 52 is arranged on the right side of the stamping table 1, the upper end of the left connecting rod 51 is hinged with the lower end of the first connecting rod 21, the lower end of the left connecting rod 51 is hinged on the lower male die 61, the upper end of the right connecting rod 52 is hinged with the lower end of the third connecting rod 23, the lower end of the right connecting rod 52 is hinged on the lower female die 62, a lower, the plate strip feeding mechanism 8 is arranged outside the stamping table 1, the plate strip feeding mechanism 8 comprises a material rail 81 opposite to the feeding groove 11, a feeding channel is arranged on the material rail 81, conveying rollers 83 are arranged on the material rail 81 at intervals, the conveying rollers 83 are in contact with the plate strips 10 in the feeding channel, and a cutting knife 82 used for cutting off the plate strips 10 is arranged at the position, located at the feeding groove 111, of the stamping table 1.

As shown in fig. 1, the double-station continuous stamping method disclosed by the invention comprises the following steps:

step S1, feeding the plate strip 10, and placing the plate strip 10 with a longer length in a feeding channel of the material rail 81;

step S2, feeding plates at a feeding groove 111, intermittently rotating a conveying roller 83 on a material rail 81, inserting the front end of the plate strip 10 into the feeding groove 111 of the punching table 1, cutting the plate strip 10 by a cutting knife 82 on the punching table 1, and keeping the plates to be punched at the feeding groove 111 of the cross sliding way 11;

step S3, punching a plate in a feeding groove 111, driving a crankshaft 2 to rotate by a driving assembly, driving a first connecting rod 21 and a third connecting rod 23 to synchronously swing downwards by the crankshaft 2, driving a lower male die 61 to move in a transverse sliding channel 11 by the first connecting rod 21 through a left connecting rod 51, driving a lower female die 62 to move in the transverse sliding channel 11 by the third connecting rod 23 through a right connecting rod 52, moving the lower male die 61 and the lower female die 62 in opposite directions, and punching the plate remained in the feeding groove 111 by closing the lower male die 61 and the lower female die 62;

step S4, feeding the plate material to the upper bottom die 32, and placing the plate material to be punched into the upper bottom die 32 on the top of the punching table 1;

step S5, unloading the punched plate at the position of the feeding chute 111, separating the lower male die 61 and the lower female die 62 with the continuous rotation of the crankshaft 2, moving the punched plate with the lower female die 62, blowing by the lower unloading air pump 42 when the lower female die 62 passes through the blanking hole 12 of the stamping platform 1, and unloading the punched plate in the lower female die 62 by falling into the blanking hole 12;

step S6, stamping the plate at the upper bottom die 32, and with further rotation of the crankshaft 2, the crankshaft 2 drives the second connecting rod 22 to move downward, the upper top die 31 moves downward in the vertical slideway 13 and the upper bottom die 32 closes, and the plate in the upper bottom die 32 completes stamping;

step S7, repeat step S2;

step S8, unloading the punched plate at the upper bottom die 32, driving the second connecting rod 22 to swing upwards by the crankshaft 2, opening the upper top die 31 and the lower bottom die 32, blowing by the upper unloading air pump 41, and unloading the punched plate in the lower bottom die 32 from the unloading port;

and S9, repeating the steps 3 to 8, and realizing double-station continuous stamping at the feeding groove 111 and the upper bottom die 32.

The feeding mode of the plate strip feeding mechanism 8 is that after a long plate strip 10 is placed in a feeding channel, the plate strip 10 is driven to move forwards in the feeding channel by the rotation of a conveying roller 83, when the front end of the plate strip 10 is inserted into a feeding groove 111 and the plate strip 10 moves in place, the plate strip 10 at the front end is cut off by a cutting knife 82, and therefore a plate needing to be punched can be left in the feeding groove 111.

In addition, the driving assembly 7 of the present invention drives the crankshaft 2 to rotate in a manner that the driving assembly 7 includes a flywheel 71 connected to a rotation center of the crankshaft 2, a driving wheel 73, and a driving motor, an output shaft of the driving motor is connected to the driving wheel 73, and a transmission belt 72 is connected between the flywheel 71 and the driving wheel 73. Meanwhile, in the crankshaft 2, the first link shaft 211 and the third link shaft 231 are located on one side of the crankshaft rotation center line, the second link shaft 221 is located on the other side of the crankshaft rotation center line, and distances from the first link shaft 211, the second link shaft 221, and the third link shaft 231 to the crankshaft rotation center line are the same. According to the invention, the flywheel 71 is driven to rotate by the driving motor through the transmission belt 71, the crankshaft 2 is driven to rotate by the flywheel 71, and in the rotating process of the crankshaft 2, the first connecting rod shaft 211 and the third connecting rod shaft 231 have the same motion posture and are opposite to the motion posture of the second connecting rod shaft 221, so that the first connecting rod 21 and the third connecting rod 23 can synchronously move.

In summary, the alternating motion between the three connecting rods is realized by the rotation of the crankshaft 2, wherein the second connecting rod 22 drives the upper top die 31 to move in the vertical slideway 13, so as to realize die closing and die opening of the upper top die 31 and the upper bottom die 32 and complete the punching of a plate, and thus, the top of the punching table 1 corresponds to a vertically arranged punching station in the traditional sense; in addition, the first connecting rod 21 and the third connecting rod 23 on the crankshaft 2 synchronously move to respectively drive the lower male die 61 and the lower female die 62 to close and open the die, and simultaneously, the first connecting rod and the third connecting rod cooperate with the plate and belt feeding mechanism 8 to realize automatic feeding, stamping and discharging of the plate belt 10, so that another stamping station for automatic stamping of the plate belt 10 exists at the lower part of the stamping table 1.

Claims

1. A double-station continuous stamping method is characterized by comprising the following steps:

s1, loading the plate strip (10), and placing the plate strip (10) with longer length in a loading channel of a material rail (81);

step S2, feeding plates by a feeding groove (111), intermittently rotating a conveying roller (83) on a material rail (81), inserting the front end of a plate belt (10) into the feeding groove (111) of a punching table (1), cutting the plate belt (10) by a cutting knife (82) on the punching table (1), and leaving the plates to be punched at the feeding groove (111) of a transverse sliding channel (11);

step S3, punching a plate at the position of the feeding groove (111), driving the crankshaft (2) to rotate by the driving assembly (7), driving the first connecting rod (21) and the third connecting rod (23) to synchronously swing downwards by the crankshaft (2), driving the lower male die (61) to move in the transverse sliding way (11) by the first connecting rod (21) through the left connecting rod (51), driving the lower female die (62) to move in the transverse sliding way (11) by the third connecting rod (23) through the right connecting rod (52), enabling the lower male die (61) and the lower female die (62) to move in opposite directions, and closing the lower male die (61) and the lower female die (62) to punch the plate remained at the position of the feeding groove (111);

step S4, feeding a plate material to be punched into the upper bottom die (32) at the top of the punching table (1) by the upper bottom die (32);

step S5, unloading the punched plate at the position of the feeding chute (111), separating a lower male die (61) and a lower female die (62) with the continuous rotation of the crankshaft (2), moving the punched plate along with the lower female die (62), blowing by a lower unloading air pump (42) when the lower female die (62) passes through the blanking hole (12) of the punching table (1), and dropping the punched plate in the lower female die (62) into the blanking hole (12) to complete unloading;

step S6, stamping a plate at the upper bottom die (32), driving a second connecting rod (22) to move downwards by the crankshaft (2) along with the further rotation of the crankshaft (2), enabling an upper top die (31) to move downwards in the vertical slide way (13) and closing the upper bottom die (32), and completing the stamping of the plate in the upper bottom die (32);

step S7, repeat step S2;

step S8, unloading the punched plate at the upper bottom die (32), driving the second connecting rod (22) to swing upwards by the crankshaft (2), opening the upper top die (31) and the lower bottom die (32), blowing by the upper unloading air pump (41), and unloading the punched plate in the lower bottom die (32) from the unloading port;

and S9, repeating the steps 3 to 8, and realizing double-station continuous stamping at the feeding groove (111) and the upper bottom die (32).

2. The double-station continuous stamping method according to claim 1, characterized in that: the rotation mode that drive assembly (7) drove bent axle (2) does, drive assembly (7) include flywheel (71) of being connected with bent axle (2) rotation center, drive wheel (73) and driving motor, driving motor's output shaft and drive wheel (73) are connected, be connected with drive belt (72) between flywheel (71) and drive wheel (73), driving motor passes through drive belt (72) and drives flywheel (71) and rotate, flywheel (71) drive bent axle (2) and rotate, bent axle (2) are at the rotation in-process, first connecting rod axle (211) and third connecting rod axle (231) have the same motion gesture, and opposite with second connecting rod axle (221) motion gesture, thereby first connecting rod (21) and third connecting rod (23) can the simultaneous movement has been guaranteed.

3. The double-station continuous stamping method according to claim 1, characterized in that: the blanking hole (12) is formed in the transverse slideway (11) and is located at the running position of the lower female die (62).

4. The double-station continuous stamping method according to claim 1, characterized in that: the discharge opening (131) is arranged at the bottom of the vertical slideway (13).

5. The double-station continuous stamping method according to claim 1, characterized in that: the plate strip feeding and cutting method comprises the steps that after a long plate strip (10) is placed in a feeding channel, the plate strip (10) is driven to move forwards in the feeding channel by the rotation of a conveying roller (83), when the front end of the plate strip (10) is inserted into a feeding groove (111), the plate strip (10) is moved in place, a cutting knife (82) cuts off the plate strip (10) at the front end, and therefore the plate to be punched can be left in the feeding groove (111).