CN115488676A

CN115488676A - Tool changing device with chain tool magazine

Info

Publication number: CN115488676A
Application number: CN202211209805.8A
Authority: CN
Inventors: 陈伟; 王玲铃; 宋帅军
Original assignee: Shengzhou Jinshang Iron Fist Machine Tool Co ltd
Current assignee: Shengzhou Jinshang Iron Fist Machine Tool Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2022-12-20

Abstract

The invention relates to a tool changing device with a chain tool magazine, which comprises a tool magazine body and a tool changing mechanism, wherein the tool magazine body comprises a supporting bottom plate, a chain assembly, a tool sleeve and a shifting assembly, a tool outlet is formed in the supporting bottom plate, the tool sleeve is uniformly arranged on the chain assembly, a tool is arranged on the tool sleeve, the chain assembly drives the tool sleeve to rotate, the required tool is rotationally adjusted to the tool outlet, and then the shifting assembly drives the tool sleeve at the tool outlet to move up and down, so that the downward moving pushing or upward moving pushing back action of the tool is realized. According to the tool magazine, the tool magazine body and the tool changing mechanism independently operate and are matched with each other to realize a tool changing process, the tool magazine body is used for realizing a tool preparing process in advance, so that the time is effectively saved, the whole tool changing process is accelerated, after the tool magazine body completes the tool preparing, the tool changing mechanism can realize a rapid tool changing process, the integral output strength of the tool changing mechanism is good, the whole tool changing process is more stable and reliable, and the safety performance of actual tool changing operation is improved.

Description

Tool changing device with chain tool magazine

Technical Field

The invention belongs to the technical field of machining center equipment, and particularly relates to a tool changing device with a chain tool magazine.

Background

The automatic tool changing system, short ATC, is an important part of a machining center, and can meet the tool changing requirement of continuous machining among part processes, namely, a new tool used in the next process is automatically changed onto a main shaft after each process is finished, so that the characteristic of centralized process of the machining center is ensured, and the tool is generally changed through the coordinated action of a mechanical hand, a tool magazine and a machine tool main shaft. When the traditional tool changing mechanism changes tools, the whole tool changing process is slow, the failure rate is high, and the actual working efficiency is influenced. For example, in the technical scheme of a tool changing mechanism (publication number: CN 108637764A) for an overhead gantry machining center, a manipulator picks a required tool from a tool magazine, conveys the tool to a main shaft tool changing position, takes down the tool to be changed and changes the required tool, and puts the changed tool back into the tool magazine by the manipulator after the tool is changed, so that the whole tool changing process is complicated, and the tool changing time is long.

Disclosure of Invention

The invention aims to provide a technical scheme of a tool changing device with a chain tool magazine aiming at the defects in the prior art, the structural design is ingenious and reasonable, the practicability is high, the tool magazine body and the tool changing mechanism operate independently and are matched with each other to realize the tool changing process, the tool magazine body is used for realizing the process of preparing the tool in advance, so that the time is effectively saved, the whole tool changing process is accelerated, after the tool magazine body finishes preparing the tool, the tool changing mechanism can realize the process of quickly changing the tool, the integral output intensity of the tool changing mechanism is good, the whole tool changing process is more stable and reliable, and the safety performance of the actual tool changing operation is improved.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a take tool changer of chain tool magazine, includes tool magazine body and tool changing mechanism, and the tool magazine body is used for storing of cutter, and the change of tool changing mechanism cooperation tool magazine body realization cutter, its characterized in that: the tool magazine body comprises a supporting bottom plate, a chain assembly, a tool sleeve and a shifting assembly, wherein a tool outlet is formed in the supporting bottom plate, the tool sleeve is uniformly arranged on the chain assembly, a tool is arranged on the tool sleeve, the chain assembly drives the tool sleeve to rotate, the required tool is rotationally adjusted to the tool outlet, and the shifting assembly drives the tool sleeve at the tool outlet to move up and down, so that the downward movement, pushing out or upward movement, pushing back action of the tool is realized; the tool changing mechanism comprises a shell, a driving assembly, a linkage assembly and a tool changing arm assembly, and the driving assembly realizes the action of the tool changing arm assembly through the linkage assembly.

Further, evenly be provided with the knife sleeve seat on the chain subassembly, be provided with the chain mounting hole on the knife sleeve seat, the knife sleeve seat passes through chain mounting hole and chain subassembly fixed connection, the spacing joint of knife sleeve is in the mounting groove of knife sleeve seat, it is fixed to make things convenient for the installation between knife sleeve seat and the chain subassembly through the chain mounting hole, make the rotation that chain subassembly can be followed to the knife sleeve seat carry out synchronous motion, a knife sleeve is installed to the correspondence in the mounting groove of every knife sleeve seat, the knife sleeve can be followed mounting groove and reciprocated, rotation regulation through the knife sleeve seat, realize the conversion of cutter and remove, thereby rotate required cutter to the cutter exit, the subassembly is stirred in the deuterogamy and the required cutter descends to move to the tool changing point, cooperation tool changer carries out the change of cutter.

Further, the chain subassembly includes the tool magazine motor, planetary reducer, the conveying chain, preceding sprocket piece and rear sprocket piece, the tool magazine motor is connected with planetary reducer's input shaft, the conveying chain is connected between preceding sprocket piece and rear sprocket piece, preceding sprocket piece articulates the installation in the front on the sprocket shaft, rear sprocket piece fixed mounting is on the rear sprocket shaft, planetary reducer's output shaft is connected with the rear sprocket shaft, planetary reducer's design can be so that whole chain subassembly reaches the rotational speed of settlement, thereby the governing speed of control cutter, make more steady and high-efficient of whole cutter accommodation process.

Further, be provided with the direction support ring on the supporting baseplate, the direction support ring is laid along conveying chain, the bottom of knife sleeve seat is provided with supplementary bearing, when the chain subassembly drives knife sleeve seat and rotates, supplementary bearing is attaching the lateral wall synchronous roll of direction support ring, the direction support ring is laid along the route of laying of conveying chain, the supplementary bearing of knife sleeve seat bottom of deuterogamying, make the chain subassembly drive knife sleeve seat rotate the in-process, supplementary bearing rolls along the lateral wall synchronous roll of direction support ring, thereby effectively improve the structure steadiness and the operation stationarity of whole tool magazine body, make the installation that the cutter removes accommodation process more reliable.

Further, the direction support ring includes the preceding guide ring, guide edge and back guide ring, preceding guide ring and preceding sprocket shaft fixed connection, the guide edge is located between preceding guide ring and the back guide ring, the back guide ring sets up on the back guide sleeve, back guide sleeve cover is established in the outside of back sprocket shaft, horizontal rolling through guide edge guide auxiliary bearing, through preceding guide ring, the arc of back guide ring guide auxiliary bearing rolls, cooperation conveying chain ring shape sets up, cut apart into preceding guide ring with the direction support ring, guide edge and back guide ring, the guide edge corresponds the linear transport section, preceding guide ring corresponds the arc conveying section with the back guide ring, structural design is ingenious reasonable, make conveying chain rotate the in-process, no matter be linear movement section or the arc removal section, the auxiliary bearing of knife rest base bottom receives the direction spacing of direction support ring all the time, thereby effectively improve structural stability and operational safety, make the cutter remove the more reliable and stable of adjustment process.

Further, a support is fixedly arranged on the front chain wheel shaft, a guide clamping groove is formed between the support and the front guide ring, an opening is formed in the support and corresponds to the cutter outlet up and down, when the chain component drives the cutter to move to the cutter outlet, an auxiliary bearing at the bottom of the cutter sleeve seat installed corresponding to the cutter is slidably clamped in the guide clamping groove, the design is ingenious and reasonable, the support supports the cutter sleeve seat moving to the cutter outlet in an auxiliary mode, the stability of the overall structure is effectively improved, the guide clamping groove is formed between the support and the front guide ring in time, the guide clamping groove corresponds to the auxiliary bearing in a matching mode, when the corresponding cutter moves to the cutter outlet, the auxiliary bearing at the bottom of the cutter sleeve seat installed corresponding to the cutter just moves to be limited in the guide clamping groove, meanwhile, the opening corresponding to the cutter outlet is preset on the support, when the cutter sleeve seat moves to be in place, the cutter sleeve seat is installed with the opening in time, the cutter outlet corresponds to the cutter, and therefore the shifting component can drive the cutter to descend to the cutter changing point.

Further, the below of cutter export is provided with spacing seat, be provided with spacing draw-in groove in the spacing seat, the bottom of spacing seat is provided with locator card portion, when stirring the subassembly and drive the knife pouch that moves to the cutter exit and move down, the knife pouch receives the direction of spacing seat spacing, make the knife pouch move down perpendicularly along spacing draw-in groove all the time, until conflicting locator card portion when the knife pouch, spacing seat leads spacing to the knife pouch of descending movement, effectively ensure that the cutter moves down the verticality and the stability of removal, improve actual operation security, and spacing through the locator card portion of spacing seat bottom, when the knife pouch conflicts locator card portion, the cutter moves down to the right place, realize accurate location, thereby be convenient for tool changer to carry out the tool changing operation, improve the accurate nature and the reliability of operation of whole tool changing process.

Further, the knife sleeve is made of stainless steel, a supporting rod is arranged at the bottom of the knife sleeve, a knife sleeve supporting bearing is arranged on the supporting rod, the knife sleeve supporting bearing is supported on a supporting bottom plate in a rolling mode, when the chain assembly drives the knife sleeve to rotate, the knife sleeve supporting bearing synchronously rolls along the supporting bottom plate, the knife sleeve made of stainless steel is adopted, the rust is not prone to occurring, the service life is prolonged, and the cleanliness of the knife handle conical surface of the knife in contact with the main shaft is guaranteed, so that the knife changing precision is improved, the supporting rod can facilitate installation of the knife sleeve supporting bearing, the knife sleeve supporting bearing just rolls on the supporting bottom plate in a rolling mode, when the chain assembly rotates circularly, the knife sleeve supporting bearing synchronously rolls along the supporting bottom plate, the stable reliability and the operation safety of the operation of the whole equipment are effectively improved, and the shifting operation of the follow-up shifting assembly on the knife is facilitated.

Further, the poking assembly comprises a pushing oil cylinder and a movable swing arm, the pushing oil cylinder is installed on the supporting base plate, the end part of a piston rod of the pushing oil cylinder is hinged with the movable swing arm, one end of the movable swing arm is hinged with the installation base, the installation base is fixed on the supporting base plate, the other end of the movable swing arm is provided with a clamping part, the clamping part is provided with a clamping groove, one end of the supporting rod extends out of the cutter sleeve to form a limiting part, and the clamping groove corresponds to the limiting part; when the chain component drives the cutter to move to the cutter outlet, the limiting part at the bottom of the cutter sleeve, corresponding to the cutter, is movably clamped in the clamping groove, so that the stirring component drives the cutter sleeve to move downwards, the cutter is pushed out, the overall structure is ingenious and reasonable in design, when the required cutter moves to the cutter outlet, the pushing oil cylinder is started, the piston rod extends to drive the movable swing arm to rotate and move downwards, and the clamping part is matched with the limiting part, so that the cutter sleeve moves downwards synchronously along with the movable swing arm until the cutter sleeve drives the cutter to move downwards to a cutter changing point.

Further, the linkage assembly comprises a cylindrical cam, a plane cam, a sector gear, a tool changing gear and a tool changing positioning arm; the cylindrical cam and the plane cam are coaxially arranged in the shell through a driving shaft, and the driving assembly drives the driving shaft to rotate so as to drive the cylindrical cam and the plane cam to synchronously rotate; sector gear, tool changing gear and the articulated setting of tool changing positioning arm are in the casing, plane cam drives sector gear's stirring from top to bottom, plane cam and the intermittent type of tool changing positioning arm linkage cooperation realization tool changing gear rotate, thereby tool changing gear clearance rotates and can satisfy whole tool changing process, when being in knot sword or the action that resets, tool changing gear is spacing fixed and unable rotation, when the exchange cutter, thereby tool changing gear rotates and drives the arm of changing a knife and rotate 360, realize the rotation exchange action of cutter.

Further, the tool changing arm assembly comprises a tool changing arm and a swing arm rod, the tool changing arm is installed at one end of the swing arm rod, a main arm rod is connected between the swing arm rod and a cylindrical cam, the swing arm rod is connected to the shell in a sliding and clamping mode transversely, the cylindrical cam drives the swing arm rod to move transversely through linkage of the main arm rod, the swing arm rod moves transversely to achieve telescopic action of the tool changing arm, and therefore the tool changing arm can be pulled out and mounted conveniently, and a rotating gear is arranged on the swing arm rod;

when the sector gear is in rotating meshed fit with the rotating gear, the swing arm rod rotates to achieve the effect of buckling the cutter or resetting; when the tool changing gear is in rotating meshed fit with the rotating gear, the swing arm rod rotates 360 degrees to realize tool changing action.

Furthermore, a first needle bearing is arranged on the plane cam, a boss is arranged on the side face of the tool changing gear, an embedding groove is uniformly arranged on the boss along the circumferential direction, a second needle bearing and a third needle bearing are arranged on the tool changing positioning arm, a spring is connected between the tool changing positioning arm and the shell, the second needle bearing is slidably supported on the cam profile surface of the plane cam, and when the plane cam rotates, the plane cam drives the second needle bearing to be shifted up and down, so that the tool changing positioning arm is shifted up and down, and the third needle bearing is driven to be shifted up and down;

after the third needle bearing is shifted downwards, the third needle bearing is clamped into the embedding groove under the action of the tensile force of the spring, so that the tool changing gear is limited and cannot rotate;

after the third needle bearing is shifted upwards, the third needle bearing rolls along the outer arc surface of the attachment boss, and meanwhile, the first needle bearing is rotationally clamped into the clamping groove to shift the tool changing gear to rotate synchronously;

when the third needle bearing is clamped into the corresponding embedding groove, the tool changing gear is fixed and cannot rotate due to the limitation of the third needle bearing, the whole tool changing mechanism only can complete the action of tool buckling or resetting in the state, the tool changing gear can be limited and fixed, the follow-up first needle bearing can be conveniently and smoothly clamped into the corresponding embedding groove, when the third needle bearing rolls along the outer arc surface of the boss, the first needle bearing is clamped into the corresponding embedding groove, the planar cam rotates and stirs the tool changing gear to rotate through the linkage of the first needle bearing, and when the tool changing gear rotates, the swing arm rod just stretches out to enable the rotating gear to be in meshing contact with the tool changing gear, so that the tool changing gear drives the tool changing arm to rotate 360 degrees, and the action of tool changing is completed.

Furthermore, a fourth needle bearing is arranged on the sector gear, a first curve groove is formed in the plane cam, the fourth needle bearing is connected in a sliding mode in the first curve groove in a clamping mode, when the plane cam rotates, the plane cam drives the fourth needle bearing to shift up and down through the first curve groove, so that the sector gear can be shifted up and down, the sector gear can push the rotating gear meshed with the sector gear to rotate in the up and down shifting mode, the swing arm rod can rotate, the effect of buckling the cutter or resetting is achieved, the fourth needle bearing is limited in the first curve groove in the sliding mode, the sector gear can be shifted up and down along with the rotation of the plane cam, the rotating gear meshed with the sector gear can be driven to rotate in the up and down shifting mode, and therefore the action of buckling the cutter or resetting is achieved.

Further, drive assembly includes the motor, motor gear and reduction gear, motor gear installs and sets up on the motor shaft of motor, reduction gear is coaxial to be set up on the driving shaft, reduction gear meshes with motor gear mutually, the motor passes through the motor shaft and drives motor gear's rotation, motor gear drives the reduction gear rotation of meshing with it again, reduction gear drives the driving shaft and rotates, thereby drive cylindrical cam and planar cam's synchronous rotation, and make the driving shaft reach the output rotational speed of settlement through motor gear and reduction gear's cooperation, thereby control tool changing speed, make whole tool changing process more steady and high-efficient.

Further, the main arm rod is hinged to the shell, a fifth needle bearing is arranged on the main arm rod, a second curve groove is formed in the cylindrical cam, the fifth needle bearing is connected in the second curve groove in a sliding and clamping mode, when the cylindrical cam rotates, the cylindrical cam drives the fifth needle bearing to swing left and right through the second curve groove, left and right swinging of the main arm rod is achieved, and therefore transverse moving of the swing arm rod is driven, the fifth needle bearing is limited in the second curve groove in a sliding mode, the main arm rod can swing left and right along with rotation of the cylindrical cam, transverse moving of the swing arm rod is achieved, telescopic movement of the swing arm rod is achieved, after the swing arm rod extends out, the cutter is pulled out through the cutter changing arm, the rotating gear is in contact engagement with the cutter changing gear, 360-degree cutter changing movement is facilitated, after the swing arm rod retracts, the cutter after being changed is installed back to the equipment, the rotating gear is in contact engagement with the sector gear, and cutter buckling or resetting is facilitated.

Furthermore, the end part of the swing arm rod, which is far away from the tool changing arm, is sleeved with a lantern ring, one end of the main arm rod is hinged with the lantern ring, the tool changing arm is provided with a limit ring and a limit end sleeve, the lantern ring is limited between the limit ring and the limit end sleeve, a buffer spring is arranged between the lantern ring and the limit end sleeve, the movable connection between the main arm rod and the swing arm rod can be facilitated through the design of the lantern ring, the lantern ring is just limited between the limit ring and the limit end sleeve by the limit ring and the limit end sleeve, two ends of the lantern ring are limited by the limit ring and the limit end sleeve, so that the transverse movement of the swing arm rod can be realized through the linkage of the lantern ring in the left-right swinging of the main arm rod, the tool pulling or tool loading process is realized, meanwhile, the buffer pressure spring is sleeved on the outer side of the tool changing arm, the buffer pressure spring can play a certain buffer role, the impact effect in the tool pulling or tool loading process is reduced, the stable reliability of the whole tool changing process is improved, and the operation safety is ensured.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

the device has the advantages of ingenious and reasonable structural design and strong practicability, can realize the process of preparing the cutters in advance, when the cutter changing requirement is met, the tool magazine body is firstly operated in advance to move the required cutters to the cutter changing point, the quick cutter changing function is directly realized through the cutter changing mechanism during cutter changing, the cutter changing process can be accelerated through the arrangement of the prepared cutters, the cutter changing time is saved, the tool magazine body can be arranged into a single layer, a double layer or a multilayer to meet different requirements, the cutter buckling process of the cutter changing mechanism can simultaneously buckle the cutters on the main shaft of the equipment and the cutters needing to be changed in the tool magazine body, the two cutters are pulled out together, the cutter changing arm rotates 360 degrees to complete the exchange of the two cutters, the required cutters are installed on the main shaft, the changed cutters are placed back into the tool magazine body, the cutter changing time is effectively reduced, the working efficiency is improved, the integral output strength is better, the whole cutter changing process is more stable and reliable, and the safety performance of the actual cutter changing operation is improved.

When the tool magazine body works for preparing tools, the motor of the tool magazine provides a power source, the operation of the chain assembly reaches a set rotating speed through the planetary reducer, so that the rotating adjusting speed of the tools is controlled, the whole tool adjusting process is more stable and efficient, the chain assembly rotates circularly, the tool sleeve seat is driven to rotate, the adjustment of the tools is realized, until the required tools are moved to the position of a tool outlet, when the tools are moved in place, the piston rod of the pushing oil cylinder extends out to drive the moving swing arm to move downwards to drive the tool sleeve to move downwards until the tools descend to a tool changing point, the tool changing action is completed by matching with the tool changing mechanism, after the tool changing action is completed, the piston rod of the pushing oil cylinder retracts again, and the replaced tools are pushed into the tool magazine body again.

When the tool changing mechanism works, the whole process comprises the steps of fastening, pulling, changing, installing and resetting, and when the tool changing mechanism works, the motor drives the driving shaft to rotate so as to drive the cylindrical cam and the plane cam arranged on the driving shaft to synchronously rotate; when the circular main cam rotates, the cylindrical cam drives the fifth needle roller bearing to swing left and right through the second curve groove, so that the main arm rod swings left and right, the swing arm rod is driven to move transversely, the cutter pulling process is performed when the swing arm rod extends out, and the cutter installing process is performed when the swing arm rod retracts; when the plane cam rotates, the plane cam drives the fourth needle bearing to be shifted up and down through the first curve groove, and then the rotation of the rotating gear is realized by matching with the linkage of the sector gear, so that the effect of tool buckling or resetting is achieved; when the plane cam rotates, the plane cam drives the second needle bearing attached to the cam profile surface of the plane cam to shift up and down, so that the tool changing positioning arm can be shifted up and down, when the third needle bearing on the tool changing positioning arm during shifting is clamped into the embedding groove of the tool changing gear, the tool changing gear is limited and cannot rotate, and meanwhile, the swing arm rod is also in a retraction state, so that the sector gear is in contact engagement with the tool changing gear, and the tool changing mechanism can only complete tool buckling or resetting actions in the state; when the third needle bearing on the tool changing positioning arm moves out of the clamping groove and rolls along the outer arc shape of the attached boss, the first needle bearing on the planar cam just rotates to be clamped into the corresponding clamping groove, so that the tool changing gear is shifted to rotate, and when the tool changing gear rotates, the swing arm rod also extends in place to enable the rotating gear to be in contact engagement with the tool changing gear, so that the tool changing arm is driven to rotate 360 degrees through the rotation of the tool changing gear, and the action of tool changing is completed.

Drawings

The invention is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic structural diagram of a tool changer with a chain tool magazine according to the present invention in a tool changing process;

FIG. 2 is a schematic top view of the structure of FIG. 1;

FIG. 3 is a schematic structural diagram of the state of the invention when the tool is not changed;

FIG. 4 is a schematic bottom view of FIG. 3;

FIG. 5 is a schematic structural view of a tool magazine body according to the present invention;

FIG. 6 is a schematic bottom view of FIG. 5;

FIG. 7 is a structural diagram of the tool magazine body in a state when the tool is pushed out;

FIG. 8 is a schematic bottom view of FIG. 7;

FIG. 9 is a schematic view of the installation position structure of the guide support ring on the support ring according to the present invention;

FIG. 10 is a schematic view of the structure of the knife pouch according to the present invention;

FIG. 11 is a schematic view of the installation position of the auxiliary bearing on the cutter sleeve according to the present invention;

FIG. 12 is a schematic view of the structure of the tool holder of the present invention;

FIG. 13 is a schematic view showing the arrangement of the supporting bearings of the cutter sheath on the cutter sheath base according to the present invention;

FIG. 14 is a schematic view of the mounting structure of the support bar on the holder of the knife sheath according to the present invention;

FIG. 15 is a schematic structural view of the state of the knife holder in the present invention when the knife holder moves in place in the position-limiting seat;

FIG. 16 is a schematic view of a spacing block according to the present invention;

FIG. 17 is a schematic view of a position distribution structure of the detent portion on the position limiting seat according to the present invention;

FIG. 18 is a structural diagram of the tool changing mechanism in the initial or reset state;

FIG. 19 is a schematic view of a state structure of the tool changing mechanism for fastening or mounting a tool;

FIG. 20 is a schematic structural view showing a state in which a tool is pulled out in the tool changing mechanism according to the present invention;

FIG. 21 is a schematic structural view of a state in the tool changing process of the tool changing mechanism according to the present invention;

FIG. 22 is a schematic view of the mounting structure of the drive assembly on the housing in accordance with the present invention;

FIG. 23 is a schematic structural view showing a state where a sector gear is engaged with a rotary gear in the present invention;

FIG. 24 is a structural diagram of a state when a plane cam drives a tool changing gear to rotate through a first needle bearing according to the present invention;

FIG. 25 is a schematic view of a sector gear of the present invention;

FIG. 26 is a schematic view of the main arm of the present invention;

FIG. 27 is a schematic view of the position distribution of the first curved slot on the flat cam according to the present invention;

FIG. 28 is a schematic plan view of the flat cam of the present invention;

FIG. 29 is a schematic view showing the arrangement of the first needle bearings on the flat cam according to the present invention;

FIG. 30 is a schematic view of the tool changing positioning arm of the present invention;

FIG. 31 is a side view of the structure of FIG. 30;

FIG. 32 is a schematic diagram showing the distribution structure of the second and third needle bearings on the tool changing positioning arm according to the present invention;

FIG. 33 is a schematic perspective view of a tool changing positioning arm according to the present invention;

FIG. 34 is a schematic view showing a structure of a tool changing gear according to the present invention;

FIG. 35 is a side view of the structure of FIG. 34;

fig. 36 is a schematic perspective view of a tool changing gear according to the present invention.

In the figure: 1-a shell; 2-a drive assembly; 3-a cylindrical cam; 4-a planar cam; 5-a sector gear; 6-tool changing gear; 7-tool changing positioning arm; 8-swing arm rod; 9-changing a tool arm; 10-driving shaft; 11-a main arm lever; 12-a first needle bearing; 13-a boss; 14-a clamping groove; 15-a second needle bearing; 16-a third needle bearing; 17-a spring; 18-a fourth needle bearing; 19-a first curved slot; 20-an electric motor; 21-motor gear; 22-reduction gear; 23-a fifth needle bearing; 24-a second curved slot; 25-a collar; 26-a stop collar; 27-a limiting end sleeve; 28-buffer compression spring; 29-a rotating gear; 30-a tool changing mechanism; 31-a tool magazine body; 32-a support floor; 33-a chain assembly; 34-a knife sleeve; 35-a toggle assembly; 36-a cutter; 37-a cutter outlet; 38-a cutter sleeve seat; 39-chain mounting holes; 40-installing a clamping groove; 41-a tool magazine motor; 42-planetary reducer; 43-a conveying chain; 44-front sprocket plate; 45-rear sprocket plate; 46-front sprocket shaft; 47-rear sprocket shaft; 48-guide support ring; 49-auxiliary bearings; 50-a front guide ring; 51-a guiding edge; 52-rear guide ring; 53-rear guide sleeve; 54-a bracket; 55-a guide slot; 56-opening; 57-limiting seat; 58-limiting clamping grooves; 59-positioning the card part; 60-support rods; 61-a cutter sleeve support bearing; 62-pushing oil cylinder; 63-moving the swing arm; 64-a piston rod; 65-mounting a base; 66-a clamping part; 67-a clamping groove; 68-limiting part.

Detailed Description

As shown in fig. 1 to 36, a tool changer with a chain tool magazine according to the present invention includes a tool magazine body 31 and a tool changing mechanism 30, the tool magazine body 31 is used for storing tools 36, the tool changing mechanism 30 is matched with the tool magazine body 31 to realize replacement of the tools 36, the tool magazine body 31 includes a supporting base plate 32, a chain assembly 33, a tool sleeve 38 and a toggle assembly 35, a tool outlet 37 is provided on the supporting base plate 32, the tool sleeve 38 is uniformly arranged on the chain assembly 33, the tools 36 are mounted on the tool sleeve 38, the chain assembly 33 drives the tool sleeve 38 to rotate, the required tools 36 are rotatably adjusted to the tool outlet 37, and the toggle assembly 35 drives the tool sleeve 38 at the tool outlet 37 to move up and down, so as to realize downward moving out or upward moving back actions of the tools 36; the tool changing mechanism 30 comprises a shell 1, a driving assembly 2, a linkage assembly and a tool changing arm assembly, wherein the driving assembly 2 realizes the action of the tool changing arm assembly through the linkage assembly.

Evenly be provided with cutter sleeve seat 34 on the chain subassembly 33, be provided with chain mounting hole 39 on the cutter sleeve seat 34, cutter sleeve seat 34 passes through chain mounting hole 39 and chain subassembly 33 fixed connection, the spacing joint of cutter sleeve 38 is in the installation draw-in groove 40 of cutter sleeve seat 34, make things convenient for the installation between cutter sleeve seat 34 and the chain subassembly 33 fixed through chain mounting hole 39, make cutter sleeve seat 34 can follow the rotation of chain subassembly 33 and carry out synchronous movement, a corresponding cutter sleeve 38 of installing in the draw-in groove 40 of every cutter sleeve seat 34, cutter sleeve 38 can reciprocate along installation draw-in groove 40, through the rotation regulation of cutter sleeve seat 34, realize the conversion removal of cutter 36, thereby it reaches cutter export 37 department to rotate required cutter 36, cooperate the subassembly 35 to stir required cutter 36 decline to move to the tool changing point again, cooperate tool changing mechanism 30 to carry out the change of cutter 36, structural design is ingenious reasonable.

The chain assembly 33 comprises a tool magazine motor 41, a planetary reducer 42, a conveying chain 43, a front chain wheel 44 and a rear chain wheel 45, the tool magazine motor 41 is connected with an input shaft of the planetary reducer 42, the conveying chain 43 is connected between the front chain wheel 44 and the rear chain wheel 45, the front chain wheel 44 is hinged on the front chain wheel 46, the rear chain wheel 45 is fixedly installed on the rear chain wheel 47, an output shaft of the planetary reducer 42 is connected with the rear chain wheel 47, the tool magazine motor 41 provides a power source, the tool magazine motor 41 drives the rear chain wheel 47 to rotate through the planetary reducer 42, the rear chain wheel 45 is fixed on the rear chain wheel 47, so that the rear chain wheel 45 rotates synchronously, the rear chain wheel 45 drives the conveying chain 43 to rotate, the conveying chain 43 is connected between the rear chain wheel 45 and the front chain wheel 44, the front chain wheel 44 rotates synchronously around the front chain wheel 46, so that the smooth and reliable operation of the whole chain assembly 33 is ensured, the rotation adjustment of the tool 36 is more convenient, and the design of the planetary reducer 42 can enable the whole chain assembly 33 to achieve the set smooth adjustment, thereby controlling the smooth and efficient adjustment of the speed of the tool 36 and further enabling the whole chain adjustment process to be more efficient.

The supporting bottom plate 32 is provided with a guide supporting ring 48, the guide supporting ring 48 is arranged along the conveying chain 43, the bottom of the knife sleeve seat 34 is provided with an auxiliary bearing 49, when the chain assembly 33 drives the knife sleeve seat 34 to rotate, the auxiliary bearing 49 is attached to the outer side wall of the guide supporting ring 48 to synchronously roll, the guide supporting ring 48 is laid along the laying path of the conveying chain 43 and is matched with the auxiliary bearing 49 at the bottom of the knife sleeve seat 34, so that in the rotating process of the knife sleeve seat 34 driven by the chain assembly 33, the auxiliary bearing 49 synchronously rolls along the outer side wall of the guide supporting ring 48, the structural stability and the operation stability of the whole knife magazine body 31 are effectively improved, and the cutter 36 is more reliably installed in the moving and adjusting process.

The guide support ring 48 comprises a front guide ring 50, a guide edge 51 and a rear guide ring 52, the front guide ring 50 is fixedly connected with the front chain wheel shaft 46, the guide edge 51 is positioned between the front guide ring 50 and the rear guide ring 52, the rear guide ring 52 is arranged on the rear guide sleeve 53, the rear guide sleeve 53 is sleeved on the outer side of the rear chain wheel shaft 47, the rear cutter sleeve 53 is fixedly installed between the support base plate 32, the guide edge 51 guides the horizontal rolling of the auxiliary bearing 49, the front guide ring 50 and the rear guide ring 52 guide the arc rolling of the auxiliary bearing 49, and the guide support ring 48 is divided into the front guide ring 50, the guide edge 51 and the rear guide ring 52 by matching with the annular arrangement of the conveying chain 43, the guide edge 51 corresponds to a linear conveying section, the front guide ring 50 and the rear guide ring 52 correspond to an arc conveying section, the structural design is ingenious and reasonable, so that the auxiliary bearing 49 at the bottom of the cutter sleeve seat 34 is always limited by the guide support ring 48 in the rotating process no matter of the linear moving section or the arc moving section, thereby effectively improving the structural stability and the operational safety, and making the cutter 36 move and adjust more stably and reliably.

The front chain wheel shaft 46 is fixedly provided with a bracket 54, a guide clamping groove 55 is formed between the bracket 54 and the front guide ring 50, an opening 56 is formed in the bracket 54, the opening 56 corresponds to the cutter outlet 37 up and down, when the chain assembly 33 drives the cutter 36 to move to the cutter outlet 37, an auxiliary bearing 49 at the bottom of the cutter sleeve seat 34 correspondingly installed on the cutter 36 is clamped in the guide clamping groove 55 in a sliding mode, the design is ingenious and reasonable, the bracket 54 supports the cutter sleeve seat 34 moving to the cutter outlet 37, the overall structural stability is effectively improved, the guide clamping groove 55 is formed between the bracket 54 and the front guide ring 50, the guide clamping groove 55 corresponds to the auxiliary bearing 49 in a matching mode, when the corresponding cutter 36 moves to the cutter outlet 37, the auxiliary bearing 49 at the bottom of the cutter sleeve seat 34 correspondingly installed on the cutter 36 is just limited in the guide clamping groove 55 in a moving mode, meanwhile, the bracket 54 is preset with the opening 56 corresponding to the cutter outlet 37, and when the cutter sleeve seat 34 moves to the position, the cutter sleeve 38 provided with the cutter 36 is just corresponding to the opening 56 and the cutter outlet 37, so that the cutter 36 can be conveniently pulled down to move the cutter assembly to the cutter outlet 35.

The below of cutter export 37 is provided with spacing seat 57, be provided with spacing draw-in groove 58 in the spacing seat 57, the bottom of spacing seat 57 is provided with locator card portion 59, when stirring subassembly 35 drives the cutter sleeve 38 that moves to cutter export 37 department and move down, cutter sleeve 38 receives the direction of spacing seat 57 spacing, make cutter sleeve 38 move down perpendicularly along spacing draw-in groove 58 all the time, until cutter sleeve 38 conflicts locator card portion 59, spacing seat 57 leads spacing to the cutter sleeve 38 of descending movement, effectively ensure the verticality and the stability of cutter 36 migration removal, improve actual operation security, and spacing through locator card portion 59 of spacing seat 57 bottom, when cutter sleeve 38 conflicts locator card portion 59, cutter 36 moves down and targets in place, realize accurate location, thereby be convenient for tool changer 30 carries out the tool changing operation, improve the accurate and the reliability of the operation of whole tool changing process.

The knife sleeve 38 is made of stainless steel, the bottom of the knife sleeve 38 is provided with a support rod 60, the support rod 60 is provided with a knife sleeve support bearing 61, the knife sleeve support bearing 61 is supported on the support bottom plate 32 in a rolling mode, when the chain assembly 33 drives the knife sleeve 38 to rotate, the knife sleeve support bearing 61 rolls synchronously along the support bottom plate 32, the stainless steel knife sleeve 38 is adopted, rustiness is avoided, the service life is prolonged, and the cleanliness of the knife handle conical surface of the knife 36 in contact with the spindle is guaranteed, so that the knife changing precision is improved, the support rod 60 can facilitate installation of the knife sleeve support bearing 61, the knife sleeve support bearing 61 just rolls on the support bottom plate 32 in a rolling mode, when the chain assembly 33 rotates circularly, the knife sleeve support bearing 61 rolls synchronously along the support bottom plate 32, the stable reliability and the operation safety of the whole device are effectively improved, and the subsequent shifting and downward moving operation of the knife 36 by shifting the assembly 35 is facilitated.

The toggle assembly 35 comprises a push oil cylinder 62 and a movable swing arm 63, the push oil cylinder 62 is mounted on the support base plate 32, the end of a piston rod 64 of the push oil cylinder 62 is hinged with the movable swing arm 63, one end of the movable swing arm 63 is hinged with a mounting base 65, the mounting base 65 is fixed on the support base plate 32, the other end of the movable swing arm 63 is provided with a clamping part 66, the clamping part 66 is provided with a clamping groove 67, one end of the support rod 60 extends out of the cutter sleeve 38 to form a limiting part 68, and the clamping groove 67 corresponds to the limiting part 68;

when the chain assembly 33 drives the cutter 36 to move to the cutter outlet 37, the limiting part 68 at the bottom of the cutter sleeve 38, which is correspondingly arranged on the cutter 36, is just movably clamped in the clamping groove 67, so that the shifting assembly 35 drives the cutter sleeve 38 to move downwards to push out the cutter 36, the design is reasonable, when the required cutter 36 moves to the cutter outlet 37, the pushing oil cylinder 62 is started, the piston rod 64 extends to drive the movable swing arm 63 to rotate and move downwards, and the cutter sleeve 38 moves downwards synchronously along with the movable swing arm 63 through the matching of the limiting part 68 and the clamping part 66 until the cutter sleeve 38 drives the cutter 36 to move downwards to the cutter changing point.

The linkage assembly comprises a cylindrical cam 3, a plane cam 4, a sector gear 5, a tool changing gear 6 and a tool changing positioning arm 7; the cylindrical cam 3 and the plane cam 4 are coaxially arranged in the shell 1 through a driving shaft 10, and the driving component 2 drives the driving shaft 10 to rotate so as to drive the cylindrical cam 3 and the plane cam 4 to synchronously rotate; sector gear 5, tool changing gear 6 and articulated setting in casing 1 of tool changing positioning arm 7, sector gear 5 sets up on an axle with tool changing gear 6 is articulated, be connected this axle again between 1 with the casing, the installation is dismantled conveniently and rationally, planar cam 4 drives sector gear 5's stirring from top to bottom, planar cam 4 realizes tool changing gear 6's intermittent type with tool changing positioning arm 7 linkage cooperation and rotates, thereby tool changing gear 6 clearance rotates and can satisfy whole tool changing process, when being in detain sword or reset action, tool changing gear 6 is spacing fixed and unable rotation, when exchange cutter 36, tool changing gear 6 rotates thereby to drive tool changing arm and rotates 360, realize the rotation exchange action of cutter 36.

The tool changing arm assembly comprises a tool changing arm 9 and a swing arm rod 8, the tool changing arm 9 is installed at one end of the swing arm 8, a main arm rod 11 is connected between the swing arm rod 8 and the cylindrical cam 3, the swing arm rod 8 is transversely clamped on the shell 1 in a sliding mode, the cylindrical cam 3 drives the swing arm rod 8 to transversely move through linkage of the main arm rod 11, the swing arm rod 8 transversely moves to achieve stretching and retracting actions of the tool changing arm 9, and therefore the tool 36 is required to be pulled out and mounted, and a rotating gear 29 is arranged on the swing arm rod 8;

when the sector gear 5 is in rotating meshed fit with the rotating gear 29, the swing arm rod 8 rotates to achieve the effect of buckling a knife or resetting;

when the tool changing gear 6 is in rotating meshed fit with the rotating gear 29, the swing arm rod 8 rotates 360 degrees to realize tool changing action.

The plane cam 4 is provided with a first needle bearing 12, a boss 13 is arranged on the side surface of the tool changing gear 6, the boss 13 is uniformly provided with clamping grooves 14 along the circumferential direction, the clamping grooves 14 are provided with six groups, the six groups of clamping grooves 14 are arranged on the boss 13 in six equal parts, the tool changing positioning arm 7 is provided with a second needle bearing 15 and a third needle bearing 16, a spring 17 is connected between the tool changing positioning arm 7 and the shell 1, the third needle bearing 16 can be smoothly clamped into the corresponding clamping groove 14 through the rebound tension action of the spring 17, so that the movement of the tool changing gear 6 is limited, the second needle bearing 15 is slidably supported on the cam profile surface of the plane cam 4, when the plane cam 4 rotates, the plane cam 4 drives the second needle bearing 15 to shift up and down, the tool changing positioning arm 7 is shifted up and down, and the third needle bearing 16 is shifted up and down;

after the third needle bearing 16 is shifted downwards, the third needle bearing 16 is clamped into the clamping groove 14 under the action of the tensile force of the spring 17, so that the tool changing gear 6 is limited and cannot rotate;

after the third needle bearing 16 is shifted upwards, the spring 17 is stretched, the third needle bearing 16 rolls along the outer arc surface of the boss 13, and meanwhile, the first needle bearing 12 is rotationally clamped into the clamping groove 14 to shift the tool changing gear 6 to rotate synchronously;

when the third needle bearing 16 is clamped into the corresponding caulking groove 14, the tool changing gear 6 is fixed and cannot rotate due to the limitation of the third needle bearing 16, in this state, the whole tool changing mechanism 30 can only complete the action of tool fastening or resetting, the tool changing gear 6 is limited and fixed, and the subsequent first needle bearing 12 can be conveniently and smoothly clamped into the corresponding caulking groove 14, when the third needle bearing 16 rolls along the outer arc surface of the boss 13, the first needle bearing 12 is clamped into the corresponding caulking groove 14, the planar cam 4 rotates and toggles the tool changing gear 6 to rotate through the linkage of the first needle bearing 12, and when the tool changing gear 6 rotates, the swing arm rod 8 just extends out to enable the rotating gear 29 to be in meshing contact with the tool changing gear 6, so that the tool changing arm 9 is driven by the tool changing gear 6 to rotate 360 degrees, and the action of the tool changing gear 36 is completed.

The sector gear 5 is provided with a fourth needle bearing 18, the plane cam 4 is provided with a first curve groove 19, the fourth needle bearing 18 is connected in the first curve groove 19 in a sliding and clamping mode, when the plane cam 4 rotates, the plane cam 4 drives the fourth needle bearing 18 to shift up and down through the first curve groove 19, up-and-down shifting of the sector gear 5 is achieved, the sector gear 5 can push the rotating gear 29 meshed with the sector gear to rotate in the up-and-down shifting mode, rotation of the swing arm rod 8 is achieved, the effect of knife buckling or resetting is achieved, when the knife or resetting is conducted, the swing arm rod 8 does not need to rotate 360 degrees, only the specific angle needs to be rotated to the knife buckling or resetting position, the fourth needle bearing 18 is limited in the first curve groove 19 in a sliding mode, the sector gear 5 can shift up and down along with rotation of the plane cam 4, and the sector gear 5 can drive the rotating gear 29 meshed with the sector gear to rotate in the up-and-down shifting mode, and knife buckling or resetting is achieved.

Drive assembly 2 includes motor 20, motor gear 21 and reducing gear 22, motor gear 21 installs and sets up on motor 20's motor shaft, reducing gear 22 is coaxial to be set up on driving shaft 10, reducing gear 22 meshes with motor gear 21 mutually, motor 20 passes through the rotation that motor shaft drove motor gear 21, motor gear 21 drives the reducing gear 22 rotation of meshing with it again, reducing gear 22 drives driving shaft 10 and rotates, thereby drive the synchronous rotation of cylindrical cam 3 and plane cam 4, and make driving shaft 10 reach the output rotational speed of settlement through motor gear 21 and reducing gear 22's cooperation, thereby control tool changing speed, make more steady and the high efficiency of whole tool changing process.

The main arm rod 11 is hinged to the shell 1, a fifth needle bearing 23 is arranged on the main arm rod 11, a second curve groove 24 is formed in the cylindrical cam 3, the fifth needle bearing 23 is connected in a sliding mode in the second curve groove 24 in a clamping mode, when the cylindrical cam 3 rotates, the cylindrical cam 3 drives the fifth needle bearing 23 to swing left and right through the second curve groove 24, left and right swinging of the main arm rod 11 is achieved, transverse moving of the swing arm rod 8 is driven, the fifth needle bearing 23 is limited in the second curve groove 24 in a sliding mode, the main arm rod 11 can swing left and right along with rotation of the cylindrical cam 3, transverse moving of the swing arm rod 8 is achieved, telescopic movement of the swing arm rod 8 is achieved, after the swing arm rod 8 extends out, the cutter changing arm 9 extracts the cutter 36, the rotating gear 29 is in contact engagement with the cutter changing gear 6, 360-degree cutter changing action is facilitated, after the swing arm rod 8 retracts, the exchanged cutter 36 is installed back on equipment, the rotating gear 29 is in contact engagement with the sector gear 5, and cutter buckle or reset action is facilitated.

The end cover that keeps away from tool changing arm 9 on swing arm pole 8 is equipped with lantern ring 25, the one end of main arm pole 11 is articulated with lantern ring 25, be provided with spacing ring 26 and spacing pot head 27 on the tool changing arm 9, lantern ring 25 is spacing between spacing ring 26 and spacing pot head 27, be provided with buffering pressure spring 28 between lantern ring 25 and the spacing pot head 27, reasonable in design, easy dismounting, swing joint between main arm pole 11 and swing arm pole 8 can be convenient for through the design of lantern ring 25, and spacing ring 26 and spacing pot head 27 just in time with lantern ring 25 spacing between the two, lantern ring 25 both ends receive spacing ring 26, the restriction of spacing pot head 27, make in the left and right sides pendulum of main arm pole 11, can realize the lateral shifting of swing arm pole 8 through the linkage of lantern ring 25, realize the process of pulling out the sword or adorning the sword, buffering pressure spring 28 cover is established in the outside of tool changing arm 9 simultaneously, buffering pressure spring 28 can play certain cushioning effect, reduce the impact effect of the process of pulling out the sword or adorning the sword, improve the reliability of whole tool changing process, guarantee the steady tool safety of operation.

When the tool magazine body 31 works for spare tools, the tool magazine motor 41 provides a power source, the chain assembly 33 is driven to run at a set rotating speed through the planetary reducer 42, so that the rotating adjusting speed of the tools 36 is controlled, the whole adjusting process of the tools 36 is more stable and efficient, when the chain assembly 33 rotates circularly, the tool sleeve seats 34 fixed on the conveying chain 43 are driven to rotate synchronously, each tool sleeve seat 34 is correspondingly provided with one tool sleeve 38, each tool sleeve 38 can move up and down along the tool sleeve seat 34, each tool sleeve 38 can be internally provided with one tool 36, make a plurality of different grade type cutters 36 can be placed in tool magazine body 31, satisfy the change demand of different cutters 36, thereby chain subassembly 33 drives cutter cover seat 34 and rotates the regulation that realizes cutter 36, until with required cutter 36 remove to cutter export 37 position department, push away the piston rod 64 of hydro-cylinder 62 and stretch out, it moves swing arm 63 to drive moves down, drive cutter cover 38 and move down, until cutter 36 descends to the tool changing point, cooperate tool changing mechanism 30 to accomplish the tool changing action, after accomplishing the tool changing action, push away the piston rod 64 of hydro-cylinder 62 and retract again, the cutter 36 that will change is the propelling movement again can reach cutter 36 originally internally.

When the tool changing mechanism 30 of the invention changes tools, the whole process is divided into tool buckling, tool pulling, tool changing, tool loading and resetting, when the tool changing mechanism 30 works, the motor 20 provides a power source, and the driving shaft 10 reaches the set output rotating speed through the matching of the motor gear 21 and the reduction gear 22, so that the tool changing speed is controlled, the whole tool changing process is more stable and efficient, and the driving shaft 10 rotates to drive the cylindrical cam 3 and the plane cam 4 which are arranged on the driving shaft to synchronously rotate; when the circular main cam rotates, the cylindrical cam 3 drives the fifth needle bearing 23 to swing left and right through the second curve groove 24, so that the main arm rod 11 swings left and right, the swing arm rod 8 is driven to move transversely, a cutter pulling process is performed when the swing arm rod 8 extends out, and a cutter installing process is performed when the swing arm rod 8 retracts; when the plane cam 4 rotates, the plane cam 4 drives the fourth needle bearing 18 to be shifted up and down through the first curve groove 19, and then the rotation of the rotating gear 29 is realized by the linkage of the sector gear 5, so that the effect of tool buckling or resetting is achieved; when the plane cam 4 rotates, the plane cam 4 drives the second needle bearing 15 attached to the cam profile surface of the plane cam to shift up and down, so that the tool changing positioning arm 7 can be shifted up and down, when the third needle bearing 16 on the tool changing positioning arm 7 during shifting is clamped into the embedding groove 14 of the tool changing gear 6, the tool changing gear 6 is limited and cannot rotate, and meanwhile, the swing arm rod 8 is also in a retraction state, so that the sector gear 5 is in contact engagement with the tool changing gear 6, and the tool changing mechanism 30 can only complete tool buckling or resetting actions under the state; when the third needle bearing 16 on the tool changing positioning arm 7 moves out of the embedding groove 14 and rolls along the outer circular arc of the attaching boss 13, the first needle bearing 12 on the planar cam 4 just rotates and is clamped into the corresponding embedding groove 14, so that the tool changing gear 6 is moved to rotate, the swing arm rod 8 also extends to the position to enable the rotating gear 29 to be in contact engagement with the tool changing gear 6 when the tool changing gear 6 rotates, and the tool changing arm 9 is driven to rotate 360 degrees through the rotation of the tool changing gear 6, so that the action of changing the tool 36 is completed.

The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple variations, equivalent substitutions or modifications based on the present invention to achieve substantially the same technical effects are within the scope of the present invention.

Claims

1. A tool changer with a chain magazine, comprising:

the tool magazine body is used for storing tools;

the tool changing mechanism is matched with the tool magazine body to realize the replacement of the tool;

the method is characterized in that:

the tool magazine body comprises a supporting bottom plate, a chain assembly, a tool sleeve and a shifting assembly, wherein a tool outlet is formed in the supporting bottom plate, the tool sleeve is uniformly arranged on the chain assembly, the tool is mounted on the tool sleeve, the chain assembly drives the tool sleeve to rotate, the required tool is adjusted to the tool outlet in a rotating manner, and then the shifting assembly drives the tool sleeve at the tool outlet to move up and down, so that the downward movement, pushing out or upward movement, pushing back action of the tool is realized;

the tool changing mechanism comprises a shell, a driving assembly, a linkage assembly and a tool changing arm assembly, wherein the driving assembly realizes the action of the tool changing arm assembly through the linkage assembly.

2. The tool changer with the chain magazine as claimed in claim 1, characterized in that: the chain assembly is characterized in that a knife sleeve seat is uniformly arranged on the chain assembly, a chain mounting hole is formed in the knife sleeve seat, the knife sleeve seat is fixedly connected with the chain assembly through the chain mounting hole, and the knife sleeve is clamped in the mounting clamping groove of the knife sleeve seat in a limiting manner.

3. The tool changer with the chain magazine as claimed in claim 1, characterized in that: the chain assembly comprises a tool magazine motor, a planetary speed reducer, a conveying chain, a front chain wheel piece and a rear chain wheel piece, the tool magazine motor is connected with an input shaft of the planetary speed reducer, the conveying chain is connected between the front chain wheel piece and the rear chain wheel piece, the front chain wheel piece is hinged to the front chain wheel shaft, the rear chain wheel piece is fixedly installed on the rear chain wheel shaft, and an output shaft of the planetary speed reducer is connected with the rear chain wheel shaft.

4. The tool changer with the chain magazine as claimed in claim 3, wherein: the supporting bottom plate is provided with a guide supporting ring, the guide supporting ring is arranged along the conveying chain, the bottom of the cutter sleeve seat is provided with an auxiliary bearing, and when the chain assembly drives the cutter sleeve seat to rotate, the auxiliary bearing is attached to the outer side wall of the guide supporting ring to roll synchronously.

5. The tool changer with the chain magazine as claimed in claim 4, wherein: the guide support ring comprises a front guide ring, a guide edge and a rear guide ring, the front guide ring is fixedly connected with the front chain wheel shaft, the guide edge is positioned between the front guide ring and the rear guide ring, the rear guide ring is arranged on the rear guide sleeve, the rear guide sleeve is sleeved on the outer side of the rear chain wheel shaft, the guide edge guides the horizontal rolling of the auxiliary bearing, and the front guide ring guides the arc rolling of the auxiliary bearing.

6. The tool changer with the chain magazine as claimed in claim 5, wherein: the last fixed bracket that is provided with of preceding sprocket shaft, the bracket with form the direction draw-in groove between the leading ring, be provided with the opening on the bracket, the opening with the cutter export corresponds from top to bottom, works as the chain subassembly drives the cutter removes during the cutter exit, should the cutter corresponds the installation the auxiliary bearing sliding joint of knife sleeve seat bottom is in the direction draw-in groove.

7. The tool changer with the chain magazine as claimed in claim 1, characterized in that: a limiting seat is arranged below the cutter outlet, a limiting clamping groove is arranged in the limiting seat, a positioning clamping part is arranged at the bottom of the limiting seat, when the poking component drives the cutter sleeve moving to the cutter outlet to move downwards, the knife pouch receives the direction of spacing seat is spacing for the knife pouch all the time along spacing draw-in groove moves down perpendicularly, until work as the knife pouch contradicts locator card portion.

8. The tool changer with the chain magazine as claimed in claim 1, characterized in that: the knife sleeve is made of stainless steel, a support rod is arranged at the bottom of the knife sleeve, a knife sleeve supporting bearing is arranged on the support rod, the knife pouch supporting bearing is supported on the supporting bottom plate in a rolling mode, and when the chain assembly drives the knife pouch to rotate, the knife pouch supporting bearing rolls along the supporting bottom plate synchronously.

9. The tool changer with the chain magazine as claimed in claim 8, wherein: the poking assembly comprises a pushing oil cylinder and a moving swing arm, the pushing oil cylinder is installed on the supporting bottom plate, the end part of a piston rod of the pushing oil cylinder is hinged with the moving swing arm, one end of the moving swing arm is hinged with an installation base, the installation base is fixed on the supporting bottom plate, the other end of the moving swing arm is provided with a clamping part, the clamping part is provided with a clamping groove, one end of the supporting rod extends out of the cutter sleeve to form a limiting part, and the clamping groove corresponds to the limiting part;

when the chain component drives the cutter to move to the cutter outlet, the limiting part at the bottom of the cutter sleeve, which is correspondingly arranged on the cutter, is just movably clamped in the clamping groove, so that the shifting component drives the cutter sleeve to move downwards to push the cutter out.

10. The tool changer with the chain magazine as claimed in claim 1, characterized in that: the linkage assembly comprises a cylindrical cam, a plane cam, a sector gear, a tool changing gear and a tool changing positioning arm; the cylindrical cam and the plane cam are coaxially arranged in the shell through a driving shaft, and the driving assembly drives the driving shaft to rotate so as to drive the cylindrical cam and the plane cam to synchronously rotate; the fan-shaped gear, the tool changing gear and the tool changing positioning arm are arranged in the shell in a hinged mode, the planar cam drives the fan-shaped gear to be shifted up and down, and the planar cam is matched with the tool changing positioning arm in a linkage mode to achieve intermittent rotation of the tool changing gear.

11. The tool changer with the chain magazine as claimed in claim 10, wherein: the tool changing arm assembly comprises a tool changing arm and a swing arm rod, the tool changing arm is installed at one end of the swing arm rod, a main arm rod is connected between the swing arm rod and the cylindrical cam, the swing arm rod is transversely clamped on the shell in a sliding mode, the cylindrical cam drives the swing arm rod to transversely move through linkage of the main arm rod, and a rotating gear is arranged on the swing arm rod;

when the sector gear is in rotating meshed fit with the rotating gear, the swing arm rod rotates to achieve the effect of buckling a knife or resetting;

when the tool changing gear is in rotating meshed fit with the rotating gear, the swing arm rod rotates 360 degrees to realize tool changing action.

12. The tool changer with the chain magazine as claimed in claim 10, wherein: the plane cam is provided with a first needle bearing, a boss is arranged on the side face of the tool changing gear, an embedding groove is uniformly arranged on the boss along the circumferential direction, a second needle bearing and a third needle bearing are arranged on the tool changing positioning arm, a spring is connected between the tool changing positioning arm and the shell, the second needle bearing is supported on the cam profile surface of the plane cam in a sliding manner, and when the plane cam rotates, the plane cam drives the second needle bearing to shift up and down, so that the tool changing positioning arm is shifted up and down, and the third needle bearing is driven to shift up and down;

when the third needle bearing is shifted upwards, the third needle bearing rolls along the outer arc surface of the attachment boss, and meanwhile, the first needle bearing is rotationally clamped into the clamping groove to shift the tool changing gear to rotate synchronously.

13. The tool changer with the chain magazine as claimed in claim 11, wherein: the sector gear is provided with a fourth needle bearing, the planar cam is provided with a first curve groove, the fourth needle bearing is connected in the first curve groove in a sliding and clamping mode, when the planar cam rotates, the planar cam drives the fourth needle bearing to shift up and down through the first curve groove, so that the sector gear is shifted up and down, the sector gear can push the rotating gear meshed with the sector gear to rotate in the process of shifting up and down, the rotation of the swing arm rod is further achieved, and the effect of tool locking or resetting is achieved.

14. The tool changer with the chain magazine as claimed in claim 10, wherein: the driving assembly comprises an electric motor, a motor gear and a reduction gear, the motor gear is arranged on a motor shaft of the electric motor, the reduction gear is coaxially arranged on the driving shaft, and the reduction gear is meshed with the motor gear.

15. The tool changer with the chain magazine as claimed in claim 11, wherein: the main arm rod is hinged to the shell, a fifth needle bearing is arranged on the main arm rod, a second curve groove is formed in the cylindrical cam, the fifth needle bearing is in sliding clamping connection with the second curve groove, and when the cylindrical cam rotates, the cylindrical cam drives the fifth needle bearing to swing left and right through the second curve groove, so that the left and right swinging of the main arm rod is achieved, and the transverse movement of the swing arm rod is driven.

16. The tool changer with the chain magazine as claimed in claim 11, wherein: keep away from on the swing arm pole the tip cover of tool changing arm is equipped with the lantern ring, the one end of main armed lever with the lantern ring is articulated, be provided with spacing ring and spacing pot head on the tool changing arm, the lantern ring is spacing the spacing ring with between the spacing pot head, the lantern ring with be provided with buffer spring between the spacing pot head.