CN116851554A - Automatic cutter splicing device of bending machine - Google Patents

Abstract

The invention provides an automatic cutter splicing device of a bending machine, which comprises a cutter plate fixedly connected with the lower end surface of an upper pressing beam, two cutter splicing assemblies respectively arranged on two sides of the middle part of the front end surface of the cutter plate, and a middle cutter assembly arranged between the two cutter splicing assemblies, wherein the cutter splicing assemblies consist of the cutter splicing plate, a locking mechanism, a positioning mechanism, a displacement mechanism, a rotating mechanism and N cutter splicing assemblies, and the two cutter splicing assemblies are mutually symmetrical; the middle knife assembly consists of a main body, a pull rod, a middle cylinder, a lifting block and a knife body. The invention adopts sectional adjustment firstly, then eliminates the minimum deviation generated by sectional adjustment by adjusting the middle knife, thus the upper pressing knife can keep moving integrally when adjusting, the lower arrangement of the upper pressing knife is still tightly attached, no gap exists, the twisting or swinging of the upper pressing knife is effectively avoided, and the invention has the advantages of simple structure, easy operation and easy maintenance, and is beneficial to improving the quality of bending products.

Description

Automatic cutter splicing device of bending machine

Technical Field

The invention relates to a bending machine, in particular to a flexible bending machine, and particularly relates to an automatic cutter splicing device of a bending machine.

Background

When the bending machine bends, the upper pressing cutters are required to be distributed corresponding to the bending length of the workpiece, so that the defects of workpiece warpage, poor bending precision and the like caused by the fact that the workpiece is not compressed by the whole length during bending processing are avoided. In the prior art, as proposed in patent CN 112275851a, the tool splicing device and method for a full-automatic bending device aim at solving the problem that the upper pressing tools correspond to the bending length of the workpiece, however, the solution of the problem is to uniformly distribute the changed gaps between the upper pressing tools, the adjustment mode is complex, an operator is required to perform calculation adjustment, gaps exist between the parallel upper pressing tools, under the bending pressure, the upper pressing tools mounted on the guide rail are easy to twist or swing due to the assembly gaps, the manufacturing and assembly precision of the upper pressing tools is required to be improved as a whole, the production cost is increased intangibly, and the unstable quality factor is also increased to a certain extent.

Disclosure of Invention

Aiming at the problems in the background technology, the invention aims to provide an automatic edge splicing device of a bending machine, which is used for adjusting the edge pressing length of an upper pressing cutter in a segmented way by adjusting the number of edge splicing cutters, and then eliminating the minimum deviation of the segmented adjustment by adjusting a middle cutter component, so that the length adjustment of the edge splicing cutter meets the requirement of the edge pressing length.

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

the automatic cutter splicing device of the bending machine comprises a cutter plate fixedly connected with the lower end surface of an upper pressing beam, two cutter splicing assemblies respectively arranged on two sides of the middle part of the front end surface of the cutter plate, and a middle cutter assembly arranged between the two cutter splicing assemblies, wherein the cutter splicing assemblies consist of the cutter splicing plate, a locking mechanism, a positioning mechanism, a displacement mechanism, a rotating mechanism and N cutter splicing assemblies, and the two cutter splicing assemblies are mutually symmetrical;

the rear side surface of the cutter splicing plate is connected with the cutter plate in a sliding way; the front end face of the cutter splicing plate is provided with a cutter splicing frame near one end of the inner side face of the cutter splicing plate, the other end of the cutter splicing plate is provided with a first vertical mounting seat and a second vertical mounting seat, the second mounting seat is positioned between the first mounting seat and the cutter splicing frame, the top of the cutter splicing frame is fixedly connected with a positioning frame, a transverse guide pillar is arranged above the middle part of the cutter splicing frame, the guide pillar extends to the other end of the cutter splicing plate and is fixed through the second mounting seat, a side cutter seat is arranged at the lower part of one end of the cutter splicing frame near the inner side face of the cutter splicing plate, and a side cutter is arranged at the lower part of the side cutter seat;

the whole cutter is of a flat plate structure, a locking piece is arranged at the rear end of the upper part of the cutter, a cutter pressing functional block is arranged at the lower part of the cutter, a horizontal cutting edge is arranged at the lower end of the cutter pressing functional block, and a first through hole and a second through hole are respectively formed at the front end of the upper part of the cutter; the front side of the upper surface of the jigsaw is also provided with a slot with an upper opening;

the displacement mechanism is arranged on the front end surface of the cutter splicing plate and positioned below the guide post, and is provided with a sliding seat which is connected with the guide post in a sliding way and a displacement motor which drives the sliding seat to move, and the displacement motor is arranged on the first mounting seat;

the rotating mechanism is arranged on the front end face of the cutter splicing plate and is positioned below the displacement mechanism, the rotating mechanism comprises a rotating shaft, an inserting rod, an inserting plate and a rotating motor, the rotating motor is arranged on a first mounting seat, the rotating shaft is parallel to the guide post, one end of the rotating shaft is connected with the rotating motor through a second mounting seat, the other end of the rotating shaft is arranged in the cutter splicing frame in a penetrating manner, N cutter splicing plates are sleeved on the rotating shaft through first through holes, and the first through holes are in clearance fit with the rotating shaft; the inserting rod is parallel to the rotating shaft, one end of the inserting rod is connected with the rotating shaft through a first connecting piece and a second connecting piece respectively, the first connecting piece and the second connecting piece are respectively sleeved on the rotating shaft in a sliding way, the first connecting piece is axially positioned by the sliding seat, and the other end of the inserting rod is movably penetrated in second through holes of the N splicing knives under the driving of the sliding seat; one end of the plugboard is fixedly connected with the sliding seat, the other end of the plugboard is provided with a lock tongue, the lock tongue is inserted into the slots of the N splicing knives, and the sliding seat drives the lock tongue to move in the slots of the N splicing knives;

the locking mechanism comprises a locking driver, a locking rod, a claw seat and a locking claw, and is used for locking the jigsaw positioned on the lower end surface of the cutter plate;

the positioning mechanism comprises a positioning driver and a positioning claw and is used for locking the cutter splicing at the front end face of the cutter plate;

the middle knife assembly consists of a main body, a pull rod, a middle air cylinder, a lifting block and a knife body, wherein the main body is positioned between side knife seats of the two knife assembly, the upper end of the middle air cylinder is rotationally hinged to the front end face of the upper pressing beam, the lower end of the middle air cylinder is connected with the lifting block through the pull rod, the lifting block is installed in the main body in a lifting manner, and the knife body is installed at the lower end of the lifting block.

The displacement mechanism comprises a displacement motor, a sliding seat and a screw-nut pair, a screw rod of the screw-nut pair is arranged between the second mounting seat and the jig frame through a bearing, the screw rod is parallel to the guide post, one end of the screw rod is connected with the displacement motor, the screw rod is driven to rotate by the displacement motor, and a nut of the screw-nut pair is connected with the sliding seat.

The locking driver is a locking cylinder, the locking cylinder is arranged on the upper pressing beam, the claw seat is arranged on the rear end face of the cutter plate and is provided with a locking shaft, the upper end of the locking rod is rotationally hinged with a piston rod of the locking cylinder, the lower end of the locking rod is fixedly hinged with the locking shaft, one end of the locking claw is fixedly hinged with the locking shaft, the other end of the locking claw is provided with a hook-shaped claw body, and the hook-shaped claw body is matched with the locking piece.

The positioning driver is a positioning air cylinder, the positioning air cylinder is rotationally hinged to the rear end of the upper part of the positioning frame, the front end of the positioning frame is provided with double-lug plates, the positioning claw is positioned between the double-lug plates, and two ends of the positioning claw are rotationally hinged to the double-lug plates; the piston rod of the positioning cylinder is hinged to the middle position of the upper part of the positioning claw in a rotating way, and the lower part of the positioning claw is provided with a hook claw which is matched with the cutting edge of the cutter pressing functional block.

The lifting block is characterized in that a vertical through groove is formed in the main body, sliding grooves are formed in the left side wall and the right side wall of the through groove, vertical bosses are formed in the left side wall and the right side wall of the lifting block, and the bosses are matched with the corresponding sliding grooves; the left side wall and the right side wall of the through groove are also provided with transverse through holes respectively, the outer orifice of each through hole is provided with a first cylinder respectively, the piston rod end of each first cylinder is connected with a locking block, the locking blocks are positioned in the corresponding through holes, each locking block is provided with a clamping groove, and the clamping grooves are matched with bosses on the corresponding side walls of the lifting blocks and used for locking the lifting blocks; the side cutter seat is provided with a containing groove corresponding to the locking cylinder.

The cutter splicing frame consists of a first vertical plate and a second vertical plate, the first vertical plate and the second vertical plate are fixedly connected to the front end face of the cutter splicing plate, and the first vertical plate is positioned between the second mounting seat and the second vertical plate; the side cutter seat is fixedly connected to the lower end of the second vertical plate, the side cutter is positioned below the rear side of the cutter splicing plate, and the inner side surface of the side cutter extends to the outer side of the inner side surface of the second vertical plate.

The transverse width of the cutter body is larger than or equal to the width of the main body; one side of the upper surface of the side knife is provided with a dovetail sliding block, and the other side is provided with a bearing plane for bearing the lower end surface of the knife body.

The cutter body is connected with the lifting block through a first dovetail groove formed in the lower part of the lifting block, and a first positioning pin is arranged between the cutter body and the lifting block; the side cutter is connected with the side cutter seat through a second dovetail groove formed in the lower portion of the side cutter seat, and a second locating pin is arranged between the side cutter and the side cutter seat.

One side of the cutter assembly is also provided with a clamping cylinder, one end of the clamping cylinder is hinged to the upper part of the front end face of the cutter plate, and the other end of the clamping cylinder is connected to the cutter assembly frame and used for driving the cutter assembly to slide on the cutter plate.

The principle of the invention is as follows: firstly, selecting the number of N splicing knives in a splicing knife assembly through a displacement motor, setting the initial state of the splicing knife assembly to N splicing knives and simultaneously locking the N splicing knives in a compression station, when the number of the splicing knives to be unlocked is required to be adjusted, driving a sliding seat to move by the displacement motor so as to drive a plug rod and a plugboard to move, if the number of the unlocking splicing knives is required to be N-M, the plug rod gradually exits from right to left into second through holes of the M splicing knives, the lock tongue of the plugboard gradually enters into slots of the M splicing knives from right to left, at the moment, the plugboard and the plug rod stop moving, simultaneously unlocking the N splicing knives by a locking mechanism, driving the plug rod to rotate around a rotating shaft by a rotating shaft of a rotating mechanism, driving the N-M splicing knives to rotate, leaving the compression station, and enabling the N-M splicing knives to reach the lower part of a positioning mechanism to be locked by a positioning claw; the rest M splicing knives are positioned by the lock tongue of the plugboard and cannot fall down, when the N-M splicing knives are locked by the positioning mechanism, the locking mechanism locks the M splicing knives, and then the one-time adjustment of the splicing knife assembly is completed; because the thickness of the cutter assembly is limited, the minimum deviation exists between the distance adjusted by the cutter assembly and the specific requirement, and the cutter body of the middle cutter assembly can be lifted by adjusting the middle cutter assembly, and the minimum deviation is eliminated by adjusting the distance between the side cutters by using the clamping mechanism. When the cutter is adjusted, the upper pressing cutter installed on the cutter mounting plate is integrally moved inwards according to the vacancy adjusted by the cutter, and the adjustment of the length of the pressing edge is completed.

The invention has the beneficial effects that:

the invention adopts sectional adjustment firstly, then eliminates the minimum deviation generated by sectional adjustment by adjusting the middle knife, thus the upper pressing knife can keep moving integrally when adjusting, the lower arrangement of the upper pressing knife is still tightly attached, no gap exists, the twisting or swinging of the upper pressing knife is effectively avoided, and the invention has the advantages of simple structure, easy operation and easy maintenance, and is beneficial to improving the quality of bending products.

Drawings

Fig. 1 is a perspective view of the overall structure of the present invention.

Fig. 2 is a perspective view of the whole structure in another view of the present invention.

Fig. 3 is a schematic view of the assembly of the present invention on a press beam of a bending machine.

Fig. 4 is a perspective view of the jigsaw assembly with the locking mechanism omitted.

Fig. 5 is a perspective view of the jigsaw assembly from another perspective with the locking mechanism omitted.

Fig. 6 is a perspective view of the jigsaw assembly with the locking mechanism omitted after changing the viewing angle.

Fig. 7 is a perspective side view of a portion of the structure of the present invention.

Fig. 8 is a schematic perspective view of a blade assembly and blade assembly holder.

Fig. 9 is a schematic perspective view of the insert plate and the slide base.

Fig. 10 is a schematic perspective view of the first connecting member, the second connecting member and the rotating shaft.

Fig. 11 is a perspective combined view of N blades.

Fig. 12 is a schematic perspective view of a cutter plate.

Fig. 13 is a perspective view of the upper press beam and the cutter plate.

Fig. 14 is a schematic perspective view of an intermediate knife assembly.

Fig. 15 is a schematic perspective view of the middle knife assembly with the main body removed.

Fig. 16 is a schematic perspective view of the main body.

Fig. 17 is a schematic perspective view of a lifting block.

Fig. 18 is a schematic perspective view of a side cutter.

In the figure: 1. the cutter splicing plate, 2, the main body, 3, the cutter plate, 4, the upper pressing beam, 5, the cutter splicing, 6, the locking driver, 7, the positioning driver, 8, the clamping cylinder, 10, the cutter splicing frame, 11, a first mounting seat, 12, a second mounting seat, 13, a positioning frame, 14, a guide post, 15, a side cutter seat, 16, a side cutter, 17, a sliding seat, 18, a rotating shaft, 19, an inserting rod, 20 and an inserting plate; 21. the device comprises a pull rod, a 22, an intermediate cylinder, a 23, a lifting block, a 24, a cutter body, a 25, a first cylinder, a 26 and a locking block; 27. a screw rod; 31. a first connector, 32, a second connector; 40. the through grooves 41, the sliding grooves 42 and the transverse through holes; 51. the locking piece, 53, the first through hole, 54, the second through hole, 55 and the slot; 61. the locking rod, 62, the claw seat, 63, the locking claw, 64 and the locking shaft; 72 positioning claws; 101. a first riser, 102, a second riser; 151. a receiving groove 161, a bearing plane; 171. a displacement motor; 201. a rotating electric machine; 202. a bolt; 231. a boss.

Description of the embodiments

The following description of the embodiments of the present invention will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1-18, the invention provides an automatic cutter splicing device of a bending machine, which comprises a cutter plate 3 fixedly connected with the lower end surface of an upper pressing beam 4, two cutter splicing assemblies respectively arranged on two sides of the middle part of the front end surface of the cutter plate 3, and a middle cutter assembly arranged between the two cutter splicing assemblies, wherein the cutter splicing assemblies consist of a cutter splicing plate 1, a locking mechanism, a positioning mechanism, a displacement mechanism, a rotating mechanism and N cutter splicing assemblies 5, and the two cutter splicing assemblies are mutually symmetrical;

the rear side surface of the cutter splicing plate 1 is connected with the cutter plate 3 through a sliding block and a sliding rail, and the cutter splicing plate can horizontally move on the cutter plate 3; the front end face of the cutter splicing plate 1 is provided with a cutter splicing frame 10 at one end close to the inner side face of the cutter splicing plate, the other end of the cutter splicing plate is provided with a first vertical mounting seat 11 and a second vertical mounting seat 12, the second mounting seat 12 is positioned between the first mounting seat 11 and the cutter splicing frame 10, the top of the cutter splicing frame 10 is fixedly connected with a positioning frame 13, a transverse guide column 14 is arranged above the middle part of the cutter splicing frame 10, the guide column 14 extends to the other end of the cutter splicing plate 1 and is fixed through the second mounting seat 12, a side cutter seat 15 is arranged at the lower part of one end, close to the inner side face of the cutter splicing plate 1, of the cutter splicing frame 10, and a side cutter 16 is arranged at the lower part of the side cutter seat 15;

the whole of the cutter assembly 5 is of a flat plate structure, a locking piece 51 is arranged at the rear end of the upper part of the cutter assembly 5, a cutter pressing functional block is arranged at the lower part of the cutter assembly 5, a horizontal cutting edge is arranged at the lower end of the cutter pressing functional block, and a first through hole 53 and a second through hole 54 are respectively arranged at the front end of the upper part of the cutter assembly 5; the front side of the upper surface of the jigsaw 5 is also provided with a slot 55 with an upper opening; specifically, the shape of the pressing knife functional block is the same as the lateral outline of the lower end of the upper pressing knife arranged on the cutter plate, the appearance structure of the upper pressing knife is the prior known technology, and the description is omitted here;

the displacement mechanism is arranged on the front end surface of the cutter splicing plate 1 and is positioned below the guide post 14, and is provided with a sliding seat 17 which is in sliding connection with the guide post 14 and a displacement motor 171 which drives the sliding seat 17 to move, and the displacement motor 171 is arranged on the first mounting seat 11;

the rotating mechanism is arranged on the front end face of the cutter splicing plate 1 and is positioned below the displacement mechanism, the rotating mechanism comprises a rotating shaft 18, an inserting rod 19, an inserting plate 20 and a rotating motor 201, the rotating motor 201 is arranged on a first mounting seat 11, the rotating shaft 18 is parallel to a guide post 14, one end of the rotating shaft 18 is connected with the rotating motor 201 through a second mounting seat 12, the other end of the rotating shaft 18 is arranged in the cutter splicing frame 10 in a penetrating way, N cutter splicing pieces 5 are sleeved on the rotating shaft 18 through first through holes 53, and the first through holes 53 are in clearance fit with the rotating shaft 18; the inserted link 19 is parallel to the rotating shaft 18, one end of the inserted link 19 is connected with the rotating shaft 18 through a first connecting piece 31 and a second connecting piece 32 respectively, the first connecting piece 31 and the second connecting piece 32 are respectively sleeved on the rotating shaft 18 in a sliding way, the first connecting piece 31 is axially positioned by the sliding seat 17, and the other end of the inserted link 19 is movably penetrated in the second through holes 54 of the N splicing knives 5 under the driving of the sliding seat 17; one end of the plugboard 20 is fixedly connected with the sliding seat 17, the other end of the plugboard is provided with a lock tongue 202, the lock tongue 202 is inserted into the slots 55 of the N splicing knives 5, and the sliding seat 17 drives the lock tongue 202 to move in the slots 55 of the N splicing knives 5;

the locking mechanism comprises a locking driver 6, a locking rod 61, a claw seat 62 and a locking claw 63, and is used for locking the jigsaw 5 positioned on the lower end surface of the cutter plate 3;

the positioning mechanism comprises a positioning driver 7 and a positioning claw 72 and is used for locking the jigsaw 5 positioned on the front end surface of the cutter plate 3;

the middle knife assembly consists of a main body 2, a pull rod 21, a middle air cylinder 22, a lifting block 23 and a knife body 24, wherein the main body 2 is positioned between side knife seats 15 of the two knife assembly, the upper end of the middle air cylinder 22 is rotatably hinged to the front end face of the upper pressing beam 4, the lower end of the middle air cylinder is connected with the lifting block 23 through the pull rod, the lifting block 23 is installed in the main body 2 in a lifting manner, and the knife body 24 is installed at the lower end of the lifting block 23.

In the above structure, the cutter plate 3 is installed at the lower end of the upper pressing beam 4, the two sides of the cutter plate 3 are respectively provided with a pressing cutter group consisting of a plurality of upper pressing cutters with closely arranged lower ends, the pressing cutters in the pressing cutter group are driven by racks arranged at the lower ends of the cutter plate 3, and the racks are driven by a pressing cutter motor arranged at the end parts of the cutter plate 3, and the structures belong to the prior art, so that the repeated description is omitted. In the invention, the cutter 5 of the cutter assembly is abutted with the cutter pressing groups at the same side, the distance between the cutter pressing groups at the two sides is increased or reduced by adjusting the number of the cutter 5, and the adjustment of the length of the blank pressing can be completed by moving the cutter pressing groups; the middle knife component can adjust the distance between the two side knife components, and eliminates the minimum deviation generated between the thickness of the knife and the actual requirement when the knife components are adjusted.

The whole of the jigsaw 5 is of a plate-shaped structure, the lower end of the jigsaw 5 is provided with a cutter pressing functional block, the front end of the upper part of the jigsaw 5 is connected with a rotating shaft 18 of a rotating mechanism, the rear end of the upper part of the jigsaw 5 is provided with a locking piece 51, the rotating mechanism drives the jigsaw 5 to rotate, when the jigsaw 5 does not rotate, the locking piece 51 of the jigsaw 5 is locked by the locking mechanism, when the jigsaw 5 rotates, the locking piece of the jigsaw 5 is released by the locking mechanism, and when the jigsaw 5 rotates to enter a positioning station, the cutter functional block of the jigsaw 5 on the positioning station is locked and positioned by the positioning mechanism.

The working process of the invention is as follows: firstly, setting an initial state that N splicing knives 5 in a splicing knife assembly are all in a locking state, namely all the splicing knives 5 are positioned at a pressing knife station to participate in the pressing of a workpiece;

when the adjustment is needed, the number of the splicing knives 5 to be unlocked is selected, the sliding seat 17 is driven by the displacement motor 171 to move, the inserting rod 19 and the inserting plate 20 are driven to move, if the number of the unlocked splicing knives 5 is required to be N-M, the inserting rod 19 is withdrawn from the second through holes of the M splicing knives one by one from right to left, the lock tongue 202 of the inserting plate 20 is introduced into the slots of the M splicing knives 5 one by one from right to left, at the moment, the inserting plate 20 and the inserting rod 19 stop moving, the locking mechanism simultaneously releases the locking of the N splicing knives 5, the inserting rod 19 is driven to rotate around the rotating shaft 18 by the rotating shaft 18 of the rotating mechanism, the inserting rod 19 drives the N-M splicing knives 5 to rotate, the N-M splicing knives 5 leave the compression station, and the N-M splicing knives 5 reach the lower part of the positioning mechanism to be locked by the positioning claw 72; the rest M pieces of the cutter 5 are positioned by the lock tongue 202 of the plugboard 20 and cannot fall, when the N-M pieces of cutter 5 are locked by the positioning mechanism, the locking mechanism locks the M pieces of cutter 5, and then the adjustment of the cutter assembly is completed once; because of the thickness limitation of the cutter assembly 5, the distance adjusted by the cutter assembly has minimum deviation from the specific requirements, and at this time, the middle cutter assembly can be adjusted, the cutter body 24 of the middle cutter assembly is lifted, and the clamping mechanism is used for adjusting the distance between the side cutters 16 to eliminate the minimum deviation. When the cutter assembly 5 is adjusted, the cutter pressing group installed on the cutter plate 3 is integrally moved inwards according to the vacancy adjusted by the cutter assembly 5, and the reduction adjustment of the length of the pressing edge is completed. If the length of the blank holder needs to be restored to the original length, firstly, the pressing cutter groups on two sides of the cutter assembly are separated (namely, the upper pressing beam 1 is lifted, the pressing cutters hung on the cutter rails are driven by the pressing cutter motor through racks to move outwards), enough gaps are reserved, then the positioning claws of the positioning mechanism release the cutting edges of N-M cutter assemblies 5, the locking mechanism opens the locking claws 63, the rotating motor 201 is started to rotate reversely, N-M cutter assemblies enter the reserved gaps of the pressing cutter groups and are positioned at the pressing stations, at the moment, the displacement motor 171 is started to drive the sliding seat 17 to move from left to right, the inserting rods 19 are driven to be inserted into the M cutter assemblies 5 left originally from left to right, and after the positioning of the pressing stations is completed, the locking claws 63 are locked, so that the resetting adjustment of the cutter assembly is completed; the reset adjustment of the middle knife is to open the pressing mechanism to enable the cutter assembly at two sides to move outwards, then the relative distance between the side knives 16 at two sides of the knife body 24 is adjusted, in the middle knife assembly, the knife body 24 can be used for selectively pressing a workpiece, the knife body 24 can be lifted, and the workpiece is pressed only through the side knives 16 at two sides, so that a larger adjustment range can be obtained.

The displacement mechanism comprises a displacement motor 171, a sliding seat 17 and a screw-nut pair, wherein a screw rod 27 of the screw-nut pair is arranged between the second mounting seat 12 and the jigsaw frame 10 through a bearing, the screw rod 27 is parallel to the guide post 14, one end of the screw rod 27 is connected with the displacement motor 171, the screw rod 27 is driven to rotate by the displacement motor 171, and a nut of the screw-nut pair is connected with the sliding seat 17. Specifically, the structure that the displacement motor drives the sliding seat 17 through the screw-nut pair is the prior art; the upper end of the sliding seat 17 is sleeved on the guide post 14, the lower end of the sliding seat is provided with two parallel connecting plates, and the two parallel connecting plates are sleeved on the rotating shaft 18; the first connection piece 31 is axially positioned by the space between the two parallel connection plates.

The locking driver 6 is a locking cylinder, the locking cylinder is arranged on the upper pressing beam 4, the claw seat 62 is arranged on the rear end face of the cutter plate 3, the claw seat 62 is provided with a locking shaft 64, the upper end of the locking rod 61 rotates to hinge a piston rod of the locking cylinder, the lower end of the locking rod is fixedly hinged to the locking shaft 64, one end of the locking claw 63 is fixedly hinged to the locking shaft 64, the other end of the locking claw is provided with a hook-shaped claw body, and the hook claw is matched with the cutting edge of the cutter pressing functional block.

The positioning driver 7 is a positioning cylinder, the positioning cylinder is rotatably hinged at the rear end of the upper part of the positioning frame 13, the front end of the positioning frame 13 is provided with double-lug plates, the positioning claw 72 is positioned between the double-lug plates, and the two ends of the positioning claw 72 are rotatably hinged with the double-lug plates; the piston rod of the positioning cylinder is hinged to the middle position of the upper part of the positioning claw 72 in a rotating way, and the lower part of the positioning claw 72 is provided with a hook claw which is matched with the positioning piece 52.

The inside of the main body 2 is provided with a vertical through groove 40, the left and right side walls of the inside of the through groove 40 are provided with sliding grooves 41, the left and right side walls of the lifting block 23 are provided with vertical bosses 231, and the bosses 231 are matched with the corresponding sliding grooves 41; the left side wall and the right side wall of the through groove 40 are also provided with transverse through holes 42 respectively, the outer orifice of each transverse through hole 42 is provided with a first air cylinder 25 respectively, the piston rod end of each first air cylinder 25 is connected with a locking block 26, the locking blocks 26 are positioned in the corresponding transverse through holes 42, each locking block 26 is provided with a clamping groove, and the clamping grooves are matched with the bosses 231 on the corresponding side walls of the lifting blocks 23 and are used for locking the lifting blocks 23; the side cutter seat 15 is provided with a containing groove 151 corresponding to the first cylinder 25.

The cutter splicing frame 10 consists of a first vertical plate 101 and a second vertical plate 102, wherein the first vertical plate 101 and the second vertical plate 102 are fixedly connected to the front end surface of the cutter splicing plate 1, and the first vertical plate 101 is positioned between the second mounting seat 12 and the second vertical plate 102; the side cutter seat 15 is fixedly connected to the lower end of the second vertical plate 102, the side cutter 16 is located below the rear side of the cutter splicing plate 1, and the inner side surface of the side cutter 16 extends to the outside of the inner side surface of the second vertical plate 102.

The lateral width of the cutter body 24 is larger than or equal to the width of the main body 2, one side of the upper surface of the side cutter 16 is provided with a dovetail sliding block, and the other side is provided with a bearing plane 161 for bearing the lower end surface of the cutter body 24.

The cutter body 24 is connected with the lifting block 23 through a first dovetail groove formed in the lower part of the lifting block 23, and a first positioning pin is arranged between the cutter body 24 and the lifting block 23; the side cutter 16 is connected with the side cutter seat 15 through a second dovetail groove formed in the lower portion of the side cutter seat 15, and a second positioning pin is arranged between the side cutter 16 and the side cutter seat 15.

One side of the cutter assembly is also provided with a clamping cylinder 8, one end of the clamping cylinder 8 is hinged to the upper part of the front end face of the cutter plate, and the other end of the clamping cylinder is connected to the cutter assembly frame 10 and used for driving the cutter assembly to slide on the cutter plate 3.

The invention is not described in detail in the prior art.

Claims (9)

1. The utility model provides an automatic cutter device of piecing together of bender, includes cutter board (3) of linking firmly terminal surface under last pressure roof beam (4), sets up respectively at two cutter components of piecing together of terminal surface middle part both sides and the intermediate knife subassembly of setting between two cutter components, characterized by: the cutter assembly consists of a cutter assembly plate (1), a locking mechanism, a positioning mechanism, a displacement mechanism, a rotating mechanism and N cutters (5), and the two cutter assembly plates are mutually symmetrical;

the rear side surface of the cutter splicing plate (1) is connected with the cutter plate (3) in a sliding way; one end, close to the inner side surface, of the front end surface of the cutter splicing plate (1) is provided with a cutter splicing frame (10), the other end of the cutter splicing plate is provided with a first vertical mounting seat (11) and a second vertical mounting seat (12), the second vertical mounting seat (12) is positioned between the first vertical mounting seat (11) and the cutter splicing frame (10), the top of the cutter splicing frame (10) is fixedly connected with a positioning frame (13), the upper middle part of the cutter splicing frame (10) is provided with a transverse guide column (14), the guide column (14) extends to the other end of the cutter splicing plate (1) and is fixed through the second vertical mounting seat (12), one end, close to the inner side surface, of the cutter splicing frame (10) is provided with a side cutter seat (15), and the lower part of the side cutter seat (15) is provided with a side cutter (16);

the whole of the cutter assembly (5) is of a flat plate structure, a locking piece (51) is arranged at the rear end of the upper part of the cutter assembly (5), a positioning piece (52) is arranged at the rear end of the upper part of the cutter assembly (5), a cutter pressing functional block is arranged at the lower part of the cutter assembly (5), a horizontal cutting edge is arranged at the lower end of the cutter pressing functional block, and a first through hole (53) and a second through hole (54) are respectively formed at the front end of the upper part of the cutter assembly (5); the front side of the upper surface of the jigsaw (5) is also provided with a slot (55) with an upper opening;

the displacement mechanism is arranged on the front end surface of the cutter splicing plate (1) and is positioned below the guide post (14), the displacement mechanism is provided with a sliding seat (17) which is connected with the guide post (14) in a sliding way and a displacement motor (171) which drives the sliding seat (17) to move, and the displacement motor (171) is arranged on the first mounting seat (11);

the rotating mechanism is arranged on the front end face of the cutter splicing plate (1) and is positioned below the displacement mechanism, the rotating mechanism comprises a rotating shaft (18), an inserting rod (19), an inserting plate (20) and a rotating motor (201), the rotating motor (201) is arranged on the first mounting seat (11), the rotating shaft (18) is parallel to the guide pillar (14), one end of the rotating shaft (18) is connected with the rotating motor (201) through the second mounting seat (12), the other end of the rotating shaft is arranged in the cutter splicing frame (10) in a penetrating mode, N cutters (5) are sleeved on the rotating shaft (18) through first through holes (53), and the first through holes (53) are in clearance fit with the rotating shaft (18); the inserting rod (19) is parallel to the rotating shaft (18), one end of the inserting rod (19) is connected with the rotating shaft (18) through a first connecting piece (31) and a second connecting piece (32), the first connecting piece (31) and the second connecting piece (32) are respectively sleeved on the rotating shaft (18) in a sliding way, the first connecting piece (31) is axially positioned by the sliding seat (17), and the other end of the inserting rod (19) is movably arranged in a second through hole (54) of the N splicing knives (5) in a penetrating way under the driving of the sliding seat (17); one end of the plugboard (20) is fixedly connected with the sliding seat (17), the other end of the plugboard is provided with a lock tongue (202), the lock tongue (202) is inserted into the slots (55) of the N splicing knives (5), and the lock tongue (202) is driven by the sliding seat (17) to move in the slots (55) of the N splicing knives (5);

the locking mechanism comprises a locking driver (6), a locking rod (61), a claw seat (62) and a locking claw (63), and is used for locking the jigsaw (5) positioned on the lower end surface of the cutter plate (3);

the positioning mechanism comprises a positioning driver (7) and a positioning claw (72), and is used for locking the jigsaw (5) positioned on the front end surface of the cutter plate (3);

the middle knife assembly comprises a main body (2), a pull rod (21), a middle air cylinder (22), a lifting block (23) and a knife body (24), wherein the main body (2) is positioned between side knife holders (15) of the two knife assembly, the upper end of the middle air cylinder (22) is rotationally hinged to the front end face of the upper pressing beam (4), the lower end of the middle air cylinder is connected with the lifting block (23) through the pull rod, the lifting block (23) is installed in the main body (2) in a lifting manner, and the knife body (24) is installed at the lower end of the lifting block (23).

2. The automatic knife assembly device of the bending machine according to claim 1, wherein the automatic knife assembly device is characterized in that: the displacement mechanism comprises a displacement motor (171), a sliding seat (17) and a screw-nut pair, a screw rod (27) of the screw-nut pair is arranged between the second mounting seat (12) and the splicing tool rest (10) through a bearing, the screw rod (27) is parallel to the guide post (14), one end of the screw rod (27) is connected with the displacement motor (171), the screw rod (27) is driven by the displacement motor (171) to rotate, and a nut of the screw-nut pair is connected with the sliding seat (17).

3. The automatic knife assembly device of the bending machine according to claim 1, wherein the automatic knife assembly device is characterized in that: the locking driver (6) is a locking cylinder, the locking cylinder is arranged on the upper pressing beam (4), the claw seat (62) is arranged on the rear end face of the cutter plate (3), the claw seat (62) is provided with a locking shaft (64), the upper end of the locking rod (61) is rotationally hinged with a piston rod of the locking cylinder, the lower end of the locking rod is fixedly hinged with the locking shaft (64), one end of the locking claw (63) is fixedly hinged with the locking shaft (64), the other end of the locking claw is provided with a hook-shaped claw body, and the hook-shaped claw body is matched with the locking piece (51).

4. The automatic knife assembly device of the bending machine according to claim 1, wherein the automatic knife assembly device is characterized in that: the positioning driver (7) is a positioning air cylinder, the positioning air cylinder is rotationally hinged at the rear end of the upper part of the positioning frame (13), the front end of the positioning frame (13) is provided with a double-lug plate, the positioning claw (72) is positioned between the double-lug plates, and the two ends of the positioning claw (72) are rotationally hinged with the double-lug plate; the piston rod of the positioning cylinder is hinged to the middle position of the upper portion of the positioning claw (72), the lower portion of the positioning claw (72) is provided with a hook claw, and the hook claw is matched with the cutting edge of the cutter pressing functional block.

5. The automatic knife assembly device of the bending machine according to claim 1, wherein the automatic knife assembly device is characterized in that: the lifting device is characterized in that a vertical through groove (40) is formed in the main body (2), sliding grooves (41) are formed in the left side wall and the right side wall of the inside of the through groove (40), vertical bosses (231) are formed in the left side wall and the right side wall of the lifting block (23), and the bosses (231) are matched with the corresponding sliding grooves (41); the left side wall and the right side wall of the through groove (40) are also provided with transverse through holes (42) respectively, the outer orifice of each transverse through hole (42) is provided with a first air cylinder (25) respectively, the piston rod end of each first air cylinder (25) is connected with a locking block (26), the locking blocks (26) are positioned in the corresponding transverse through holes (42), each locking block (26) is provided with a clamping groove, and the clamping grooves are matched with a boss (231) on the corresponding side wall of the lifting block (23) and are used for locking the lifting block (23); the side tool apron (15) is provided with a containing groove (151) corresponding to the first cylinder (25).

6. The automatic knife assembly device of the bending machine according to claim 1, wherein the automatic knife assembly device is characterized in that: the cutter splicing frame (10) consists of a first vertical plate (101) and a second vertical plate (102), wherein the first vertical plate (101) and the second vertical plate (102) are fixedly connected to the front end face of the cutter splicing plate (1), and the first vertical plate (101) is positioned between the second mounting seat (12) and the second vertical plate (102); the side tool apron (15) is fixedly connected to the lower end of the second vertical plate (102), the side tool (16) is located below the rear side of the tool splicing plate (1), and the inner side surface of the side tool (16) extends to the outside of the inner side surface of the second vertical plate (102).

7. The automatic knife assembly device of the bending machine according to claim 1, wherein the automatic knife assembly device is characterized in that: the lateral width of the cutter body (24) is larger than or equal to the width of the main body (2), a dovetail sliding block is arranged on one side of the upper surface of the side cutter (16), and a bearing plane (161) for bearing the lower end face of the cutter body (24) is arranged on the other side.

8. The automatic knife assembly device of the bending machine according to claim 1, wherein the automatic knife assembly device is characterized in that: the cutter body (24) is connected with the lifting block (23) through a first dovetail groove formed in the lower part of the lifting block (23), and a first positioning pin is arranged between the cutter body (24) and the lifting block (23); the side cutter (16) is connected with the side cutter seat (15) through a second dovetail groove formed in the lower portion of the side cutter seat (15), and a second positioning pin is arranged between the side cutter (16) and the side cutter seat (15).

9. The automatic knife assembly device of the bending machine according to claim 1, wherein the automatic knife assembly device is characterized in that: one side of the cutter assembly is also provided with a clamping cylinder (8), one end of the clamping cylinder (8) is hinged to the upper part of the front end face of the cutter plate (3), and the other end of the clamping cylinder is connected to the cutter assembly frame (10) and used for driving the cutter assembly to slide on the cutter plate (3).