CN210115724U

CN210115724U - Expanded tool magazine

Info

Publication number: CN210115724U
Application number: CN201920361214.XU
Authority: CN
Inventors: 王晓辉; 胡勇; 王军辉; 郭忠成; 章伟获; 欧阳渺安; 周楚斌; 孔建斌
Original assignee: Futaihua Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Futaihua Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2019-03-20
Filing date: 2019-03-20
Publication date: 2020-02-28
Anticipated expiration: 2029-03-20

Abstract

An expansion tool magazine comprises a supporting piece, a tool carrying piece, a rotating piece and a transferring piece, wherein the supporting piece is used for connecting the expansion tool magazine on a machine table, and is positioned at one side of the existing tool magazine in the machine table, the tool carrying piece comprises a turntable which is rotatably arranged on the supporting piece and a plurality of clamping pieces which are arranged on the turntable, one side of each clamping piece, which faces away from the center of the turntable, is provided with an opening, each clamping piece can elastically clamp a tool entering from the opening, the rotating piece drives the turntable to rotate and drives the tool to rotate to a tool changing position opposite to the existing tool magazine, the transferring piece comprises a transferring driving piece and a grabbing piece, the grabbing piece can grab or release the tool, the transferring driving piece is positioned at one side of the tool changing position, which is away from the existing tool magazine, and the grabbing piece is used for driving the grabbing piece to move to the tool changing position and driving the grabbing piece for clamping the tool to continue moving towards the existing tool magazine so that the tool is separated from the grabbing piece and is loaded into the existing tool magazine. The number of the cutters is enlarged and stored in the limited space of the machine table, and the machining requirements of complex parts are met.

Description

Expanded tool magazine

Technical Field

The utility model relates to an extension tool magazine.

Background

The numerical control machining center is a high-efficiency automatic machine tool which consists of mechanical equipment and a numerical control system and is suitable for machining complex parts. In order to meet the machining requirements, a common numerical control machining center realizes multiple machining functions by installing cutters with different purposes on a tool magazine and changing a machining cutter on a main shaft through an automatic cutter changing device. The existing numerical control machining center is limited in space, so that the diameter of a cutter head of an inner tool magazine is limited, the number of tools contained in the tool magazine is limited, and the machining requirement of complex parts cannot be met.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide an extended tool magazine which is added to a conventional nc machining center and can exchange tools with the existing tool magazine therein.

An extended tool magazine comprises a support element, a tool carrying element, a rotating element and a transferring element, wherein the tool carrying element, the rotating element and the transferring element are respectively arranged on the support element, the support element is used for connecting the extended tool magazine to a machine table and is positioned at one side of the existing tool magazine in the machine table, the tool carrying element comprises a turntable which is rotatably arranged on the support element and a plurality of clamping elements which are arranged on the turntable, the plurality of clamping elements are annularly arranged, one side, facing away from the center of the turntable, of each clamping element is provided with an opening, each clamping element can elastically clamp a tool entering from the opening, the rotating element is connected with the turntable to drive the turntable to rotate and drive the tool to rotate to a tool changing position opposite to the existing tool magazine, the transferring element comprises a driving element and a grabbing element which is arranged at one end of the transferring driving element, the grabbing element can grab or release the tool, and the transferring element is positioned at one side, away from the existing tool magazine, of the transferring, and the gripping member is used for driving the gripping member to move to the tool changing position and driving the gripping member for gripping the tool to continue moving towards the existing tool magazine so as to enable the tool to be separated from the gripping member and to be loaded into the existing tool magazine.

Further, this extension tool magazine still includes the setting element, and this setting element includes location driving piece and locating pin, and this location driving piece sets up on this support piece, and this locating pin sets up in one side of this location driving piece towards this carousel, and this carousel is equipped with a plurality of locating holes that are equal with its central distance along its circumference, and this location driving piece can drive this locating pin and insert this locating hole.

Further, the clamping piece comprises a body, a plurality of plugs, a plurality of elastic pieces and a plurality of top holding balls, the plurality of bodies are arranged at the edge of the rotary disc along the circumferential direction of the rotary disc, the body is provided with a containing groove, the containing groove penetrates through one side, facing away from the center of the rotary disc, of the body to form the opening, the body is provided with a plurality of through mounting holes communicated with the containing groove, each top holding ball and one elastic piece are mounted in one mounting hole, the portion, protruding from the mounting hole, of each top holding ball is stopped by the side wall of each mounting hole, the plugs are arranged at one ends, deviating from the containing groove, of the mounting holes, and two ends of each elastic piece are respectively abutted against the top holding balls and the plugs.

Furthermore, a clamping groove is formed in the cutter, a part of the side wall of one side, away from the opening, of the accommodating groove protrudes to form a clamping part, and the clamping part can be inserted into the clamping groove.

Furthermore, the clamping member comprises a connecting member, two clamping arms and two elastic abutting members, the connecting member is arranged at the edge of the turntable, the two clamping arms are respectively and rotatably arranged at two sides of the connecting member, the clamping arms and the connecting member respectively form a revolute pair, the two elastic abutting members are arranged at two sides of the connecting member, two ends of each elastic abutting member respectively abut against the connecting member and the corresponding clamping arm, an abutting portion is arranged at one side of the revolute pair, which is far away from the elastic abutting member, of the clamping arm, and the two elastic abutting members drive the two clamping arms to respectively rotate along the connecting member so that the abutting portions abut against the cutter.

Furthermore, the clamping member further comprises two rollers, and each roller is rotatably arranged at the abutting part of the corresponding clamping arm and protrudes out of the abutting part to abut against the cutter.

Further, the rotating piece comprises a rotating driving piece and a stirring piece, the rotating driving piece is arranged on the supporting piece, the stirring piece comprises an adapter piece and two sliding blocks, the adapter piece is arranged on the rotating driving piece, the two sliding blocks are arranged on one side, facing the rotating disc, of the adapter piece at intervals, the rotating disc is correspondingly provided with a plurality of sliding grooves penetrating through the peripheral wall of the rotating disc along the circumferential direction of the rotating disc and facing the sliding blocks, the rotating driving piece drives the adapter piece to rotate, and the two sliding blocks sequentially and circularly enter the two adjacent sliding grooves and slide along the sliding grooves to drive the rotating disc to rotate.

Further, the transfer driving member includes a first mobile driving member and a second mobile driving member, the first mobile driving member is disposed on the supporting member, the second mobile driving member is disposed on the first mobile driving member, the grabbing member is disposed on a side of the second mobile driving member facing the existing tool magazine, the first mobile driving member is configured to drive the second mobile driving member and the grabbing member to stop when moving to the tool changing position, the grabbing member grabs the tool to be changed at the tool changing position, and the second mobile driving member is configured to drive the grabbing member to move toward the existing tool magazine to push the tool to be installed in the existing tool magazine.

Further, should snatch the piece and including snatching driving piece and two clamping jaws, should snatch the driving piece and set up on this second removes the driving piece, should snatch the both sides of driving piece in this two this clamping jaws branch, should snatch the driving piece and can drive two these clamping jaws and open or close relatively.

Further, the grabbing piece further comprises a bolt arranged on one clamping jaw, the other clamping jaw is correspondingly provided with an insertion hole, and when the two clamping jaws move towards each other, the bolt can be inserted into the insertion hole and can slide along the insertion hole.

The extended tool magazine drives the grabbing piece to move to the tool changing position and drives the grabbing piece to continue moving towards the existing tool magazine by using the transfer driving piece, so that the tool is separated from the clamping piece and is loaded into the existing tool magazine. The quantity of the cutters is enlarged and stored in the limited space of the machine table, and the machining requirements of complex parts are met.

Drawings

Fig. 1 is a schematic perspective view of a conventional tool magazine, an extended tool magazine, and a tool mounted on a machine table according to a first embodiment of the present invention.

Fig. 2 is an exploded perspective view of the extended magazine and the tool shown in fig. 1.

Fig. 3 is an exploded perspective view of the extended tool magazine and tool shown in fig. 2 from another perspective.

Fig. 4 is an exploded perspective view of the holder of the extended magazine shown in fig. 2.

Fig. 5 is a perspective view of an extended tool magazine and a tool according to a second embodiment of the present invention.

Fig. 6 is a perspective view of the extended tool magazine and tool shown in fig. 5 from another perspective.

Description of the main elements

Extended tool magazine 100, 100'

Support 10, 10'

Support 11

Rotating shaft 13

Seat board 15

Carrier blade 20, 20'

Turntable 21, 21'

Chute 211

Positioning hole 213

Clamping pieces 23, 23'

Body 231

Accommodation groove 2311

Mounting hole 2313

Catching part 2315

Plug 233

Elastic piece 235

Holding ball 237

Connector 231'

Clamping arm 233'

Buttressing portion 2331'

Elastic support piece 235'

Roller 237'

30, 30 'of a rotor'

Rotary drive 31

Rotary drive 311

Driving wheel 313

Driven wheels 315, 315'

Transmission belt 317

Toggle 33

Adaptor 331

Sliding block 333

Conveying pieces 40, 40'

Transfer drive unit 41

First movable driving member 411

Second movable driving member 413

Catch piece 43, 43'

Grab drive 431

Clamping jaw 433, 433'

Jack 4331'

Bolt 435'

Cushion block 437'

Positioning member 50

Positioning drive 51

Positioning pin 53

Cutting tool 200

Card slot 201

Existing tool magazine 300

Machine table 400

The following detailed description will further illustrate the present invention in conjunction with the above figures.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, a first embodiment of the present invention provides an extended tool magazine 100 for carrying and replacing tools 200. The extended tool magazine 100 includes a support member 10, and a tool carrier 20, a rotation member 30, and a transfer member 40 respectively provided on the support member 10. The support 10 is used for connecting the extended tool magazine 100 to a machine 400 and is located at one side of the existing tool magazine 300 in the machine 400. The periphery of the insert carrier 20 carries a plurality of cutters 200. The rotating member 30 is used to drive the tool carrier 20 to rotate and stop at a tool changing position opposite to the existing tool magazine 300. The transfer unit 40 can hold the tool 200 and drive the tool 200 to move toward the existing magazine 300 so that the tool 200 is separated from the tool carrier 20 and loaded into the existing magazine 300.

Referring to fig. 2, the supporting member 10 includes a bracket 11, a rotating shaft 13, and a seat plate 15. The bracket 11 is disposed on the machine 400. The rotating shaft 13 is disposed on the bracket 11. The knife carrier 20 is rotatably sleeved on the rotating shaft 13. The seat plate 15 is arranged on the side of the rotating shaft 13 facing away from the knife carrier 20.

Referring to fig. 2 to 4, the knife carrier 20 includes a rotating plate 21 and a plurality of clamping members 23 disposed around the rotating plate 21. The rotary disc 21 is rotatably disposed on the rotating shaft 13. The retainer 23 includes a body 231, a plurality of plugs 233, a plurality of resilient members 235, and a plurality of retaining balls 237. The body 231 is disposed on the turntable 21. The bodies 231 of the plurality of clamps 23 are arranged around the turntable 21 and at the edge of the turntable 21. The body 231 is provided with a receiving groove 2311. The receiving groove 2311 penetrates through the body 231 at a side away from the center of the turntable 21 to form an opening. The body 231 is provided with a plurality of through mounting holes 2313. The plurality of mounting holes 2313 communicate with the accommodation groove 2311. Each of the holding balls 237 and the elastic member 235 is installed in one of the installation holes 2313. The portion of the holding ball 237 protrudes from the mounting hole 2313 into the receiving groove 2311, and the diameter of the holding ball 237 is larger than the diameter of the mounting hole 2313 at the opening of the receiving groove 2311, so that the holding ball 237 is stopped by the sidewall of the mounting hole 2313. Each plug 233 is disposed at an end of the mounting hole 2313 away from the receiving groove 2311. The two ends of the elastic element 235 respectively abut against the abutting ball 237 and the plug 233. The cutter 200 enters the accommodation groove 2311 from the opening. The plurality of elastic members 235 urge the holding balls 237 against the tool 200 from different directions so that the holder 23 holds the tool 200.

Referring to fig. 3, in the first embodiment, a slot 201 is formed on a cutter 200. A portion of the sidewall of the receiving groove 2311 of the body 231 facing away from the opening is protruded to form a catching portion 2315. The catch 2315 can be inserted into the pocket 201 to carry the tool 200. It is understood that in other embodiments, catch 2315 may be omitted.

Referring to fig. 2 and 3, the rotating member 30 includes a rotating driving member 31 and a toggle member 33. The rotary drive member 31 includes a rotary drive member 311, a drive pulley 313, a driven pulley 315, and a transmission belt 317. The rotary driving member 311 is disposed on the bracket 11. The driving pulley 313 is connected to the rotary driving member 311. The driven pulley 315 is rotatably disposed on the bracket 11. The transmission belt 317 is respectively sleeved on the driving wheel 313 and the driven wheel 315 and is respectively meshed with the driving wheel 313 and the driven wheel 315. The toggle member 33 includes an adaptor member 331 and two sliders 333. The adaptor 331 is connected to the driven wheel 315. The two sliding blocks 333 are respectively arranged at intervals on one side of the adaptor 331 facing the turntable 21. A plurality of sliding grooves 211 penetrating through the peripheral wall of the rotating disc 21 are correspondingly arranged on one side of the rotating disc 21 facing the sliding block 333, and the sliding grooves 211 are annularly arranged on the rotating disc 21. In the first embodiment, each slide groove 211 is provided in the radial direction of the turntable 21, but is not limited thereto. The rotary driving member 311 drives the driving wheel 313 to rotate and is driven by the driving belt 317 to drive the driven wheel 315 to drive the adaptor 331 to rotate, so that one sliding block 333 enters the sliding slot 211 and slides back and forth along the sliding slot 211 to drive the rotating disc 21 to rotate, and when the sliding block 333 exits the sliding slot 211, the other sliding block 333 enters the other sliding slot 211 adjacent to the sliding slot 211 and slides along the sliding slot to drive the rotating disc 21 to rotate continuously. When the turntable 21 drives the tool 200 to be replaced to the tool changing position corresponding to the existing tool magazine 300, the rotary driving member 311 is paused to stop the tool 200 to be replaced to the tool changing position for entering the tool changing operation.

In the first embodiment, the rotary driving member 311 is a motor, and the driving pulley 313, the driven pulley 315 and the transmission belt 317 are in a synchronous belt transmission structure, but not limited thereto. It is understood that in other embodiments, the rotary driving member 311 can be directly connected to the adaptor 331 to drive the adaptor 331 to rotate. The rotary drive 31 may be another rotary drive such as a hollow rotary table. The toggle member 33 can be omitted, and the rotary driving member 311 is directly connected with the turntable 21 to drive the turntable 21 to rotate.

Referring to fig. 2 and 3, the extended magazine 100 further includes a positioning member 50. The positioning member 50 includes a positioning driving member 51 and a positioning pin 53. The positioning driving member 51 is disposed on the bracket 11 and located on a side of the turntable 21 facing the bracket 11, but is not limited thereto. The positioning pin 53 is disposed on a side of the positioning driving member 51 facing the turntable 21. The turntable 21 is provided with a plurality of positioning holes 213 along its circumferential direction. The positioning holes 213 are respectively equal to the center distance of the turntable 21. The positioning driver 51 can drive the positioning pin 53 to be inserted into the positioning hole 213 to accurately position the turntable 21. It is understood that in other embodiments, the positioning member 50 may be disposed on the seat plate 15. The positioning member 50 may be omitted.

Referring to fig. 2 and 3, the transfer unit 40 includes a transfer driving unit 41 and a gripping unit 43. The transfer drive 41 is arranged on the side of the seat plate 15 facing away from the knife carrier 20. The gripping member 43 is provided on the side of the transfer drive member 41 facing the tool changing position. The grasping member 43 can grasp or release the cutter 200. The transfer drive 41 is able to drive the gripper 43 to move to the tool changing position and the gripper 43 holding the tool 200 to continue moving towards the existing magazine 300 to disengage the tool 200 from the gripper 23 and load it into the existing magazine 300. Specifically, the transfer drive 41 includes a first movement drive 411 and a second movement drive 413. The first movable driving member 411 is disposed on the seat plate 15. The second movable driving element 413 is disposed on the first movable driving element 411. The gripping member 43 is disposed on a side of the second movable driving member 413 facing the existing magazine 300.

Referring to fig. 1 and fig. 2, the first movable driving element 411 drives the second movable driving element 413 and the grabbing element 43 to move to the tool changing position. The gripping member 43 grips the tool 200 to be replaced at the tool changing station. The second moving driver 413 drives the grasping member 43 to move to push the tool 200 to move toward the existing magazine 300 to be loaded into the existing magazine 300, and the grasping member 43 releases the tool 200. To this end, the tool 200 to be replaced is loaded into the existing tool magazine 300, and the first moving driving member 411 and the second moving driving member 413 respectively drive the grabbing member 43 to move in a direction away from the existing tool magazine 300 for the next tool changing operation.

It is understood that in other embodiments, the first moving driver 411 and the second moving driver 413 may be combined into one moving driver, for example, a linear motor driving the grabbing element 43 to move toward the existing tool magazine 300 and stop at the tool changing position and continue to move toward the existing tool magazine 300.

Referring to fig. 2, in the first embodiment, the gripping member 43 includes a gripping driving member 431 and two gripping jaws 433 disposed on both sides of the gripping driving member 431. The gripper drive 431 is a gripper cylinder, but is not limited thereto. The grasping drive 431 drives the two jaws 433 to open or close relative to each other to grasp or release the tool 200.

Referring to fig. 5, a second embodiment of the present invention provides an extended tool magazine 100'. The extension magazine 100 ' includes a support member 10 ', a tool carrier 20 ', a rotation member 30 ', and a transfer member 40 '. The structure of the extended tool magazine 100' is substantially the same as that of the extended tool magazine 100, and the main differences are as follows: the structure of the clamping element 23 'in the insert carrier element 20' differs from the clamping element 23; the gripping member 43' is of a different construction from the gripping member 43; the rotating member 30' is different from the rotating member 30 in structure.

Specifically, referring to fig. 5, the clamping member 23 'includes a connecting member 231', two clamping arms 233 'and two elastic supporting members 235'. The link 231 'is provided at the edge of the turntable 21'. The two clamping arms 233 'are respectively and rotatably disposed at two sides of the connecting member 231', and the clamping arms 233 'and the connecting member 231' respectively form a rotation pair. An opening is formed between the two holding arms 233'. The two elastic supporting parts 235 ' are located at two sides of the connecting part 231 ', and two ends of each elastic supporting part 235 ' respectively abut against the connecting part 231 ' and the corresponding clamping arm 233 '. The holding arm 233 ' has a support portion 2331 ' on the side of the rotation pair away from the elastic support 235 '. When the tool enters between the two clamping arms 233 'from the opening, the two elastic propping elements 235' drive the two clamping arms 233 'to rotate along the connecting element 231' respectively so that the propping portions 2331 'prop against the tool 200, and the clamping element 23' realizes clamping of the tool 200.

Referring to fig. 5, in the second embodiment, the clamping member 23 'further includes two rollers 237'. Each roller 237 'is rotatably disposed at the support portion 2331' of the corresponding clamp arm 233 'and protrudes from the support portion 2331' to support the tool 200. Rollers 237 'provide guidance for tool 200 into both gripper arms 233'. The roller 237' may be made of plastic material to avoid scratching the surface of the tool 200. It is understood that in other embodiments, the roller 237' may be omitted.

Referring to fig. 6, in the second embodiment, the rotating member 30 'is a synchronous belt transmission structure, in which the driven pulley 315' is directly connected to the turntable 21 'to drive the turntable 21' to rotate.

Referring to fig. 5, in the second embodiment, the structure of the grabbing element 43 'is substantially the same as that of the grabbing element 43, except that the grabbing element' further includes a latch 435 'disposed on one of the clamping jaws 433', and the other clamping jaw 433 'is correspondingly provided with a receptacle 4331'. When the two jaws 433 'are closed and opened relatively, the latch 435' can be inserted into the receptacle 4331 'and slid along the receptacle 4331'. The latch 435 ' and receptacle 4331 ' allow for precise relative movement of the two jaws 433 ', it being understood that in other embodiments, the latch 435 ' and receptacle 4331 ' may be omitted. The two clamping jaws 433 'are respectively provided with a cushion block 437' opposite to each other to protect the surface of the cutter 200. It is understood that the spacer 437' may be omitted in other embodiments.

The expanding magazine 100 drives the gripper 43 to move to the tool changing position by the transfer driving unit 41 and drives the gripper 43 to move continuously toward the existing magazine 300, so that the tool 200 is disengaged from the gripper 23 and loaded into the existing magazine 300. The quantity of the storage cutters 200 is increased in the limited space of the machine table 400, and the machining requirements of complex parts are met.

In addition, other changes may be made by those skilled in the art without departing from the spirit of the invention, and it is intended that all such changes be considered within the scope of the invention.

Claims

1. An extension tool magazine which characterized in that: the expanding tool magazine comprises a supporting piece, a tool carrying piece, a rotating piece and a transferring piece, wherein the tool carrying piece, the rotating piece and the transferring piece are respectively arranged on the supporting piece, the supporting piece is used for connecting the expanding tool magazine to a machine table and is positioned on one side of the existing tool magazine in the machine table, the tool carrying piece comprises a turntable which is rotatably arranged on the supporting piece and a plurality of clamping pieces which are arranged on the turntable, the plurality of clamping pieces are annularly arranged, one side, facing away from the center of the turntable, of each clamping piece is provided with an opening, each clamping piece can elastically clamp a tool entering from the opening, the rotating piece is connected with the turntable to drive the turntable to rotate and drive the tool to rotate to a tool changing position opposite to the existing tool magazine, the transferring piece comprises a transferring driving piece and a grabbing piece which is arranged at one end of the transferring driving piece, the grabbing piece can grab or release the tool, and the transferring driving piece is positioned on one side, away from, and the gripping member is used for driving the gripping member to move to the tool changing position and driving the gripping member for gripping the tool to continue moving towards the existing tool magazine so as to enable the tool to be separated from the gripping member and to be loaded into the existing tool magazine.

2. The extended tool magazine of claim 1, wherein: the extension tool magazine further comprises a positioning piece, the positioning piece comprises a positioning driving piece and a positioning pin, the positioning driving piece is arranged on the supporting piece, the positioning pin is arranged on one side, facing the turntable, of the positioning driving piece, the turntable is provided with a plurality of positioning holes with the same central distance along the circumferential direction of the turntable, and the positioning driving piece can drive the positioning pin to be inserted into the positioning holes.

3. The extended tool magazine of claim 1, wherein: the clamping piece comprises a body, a plurality of end caps, a plurality of elastic pieces and a plurality of top holding balls, the plurality of bodies are arranged at the edge of the rotary disc along the circumferential direction of the rotary disc, the body is provided with a containing groove, the containing groove penetrates through one side, facing away from the center of the rotary disc, of the body to form the opening, the body is provided with a plurality of through mounting holes communicated with the containing groove, each top holding ball and one elastic piece are arranged in one mounting hole, the part of each top holding ball protrudes from the mounting hole into the containing groove and is stopped by the side wall of the mounting hole, the end caps are arranged at one ends, deviating from the containing groove, of the mounting holes, and the two ends of each elastic piece are respectively abutted against the top holding balls and the end caps.

4. The extended tool magazine of claim 3, wherein: the cutter is provided with a clamping groove, part of the side wall of the accommodating groove, which is deviated from one side of the opening, protrudes to form a clamping part, and the clamping part can be inserted into the clamping groove.

5. The extended tool magazine of claim 1, wherein: the clamping piece comprises a connecting piece, two clamping arms and two elastic abutting pieces, the connecting piece is arranged at the edge of the rotary disc, the two clamping arms are respectively and rotatably arranged at two sides of the connecting piece, a rotating pair is respectively formed by the clamping arms and the connecting piece, the two elastic abutting pieces are positioned at two sides of the connecting piece, two ends of each elastic abutting piece respectively abut against the connecting piece and the corresponding clamping arm, an abutting portion is arranged at one side, away from the elastic abutting piece, of the rotating pair of the clamping arms, and the two elastic abutting pieces drive the two clamping arms to respectively rotate along the connecting piece so that the abutting portions abut against the cutter.

6. The extended tool magazine of claim 5, wherein: the clamping piece further comprises two rollers, and each roller is rotatably arranged at the abutting part of the corresponding clamping arm and protrudes out of the abutting part to abut against the cutter.

7. The extended tool magazine of claim 1, wherein: the rotating piece comprises a rotating driving piece and a stirring piece, the rotating driving piece is arranged on the supporting piece, the stirring piece comprises an adapter piece and two sliding blocks, the adapter piece is arranged on the rotating driving piece, the two sliding blocks are arranged on one side of the adapter piece facing the rotating disc at intervals, the rotating disc is correspondingly provided with a plurality of sliding grooves penetrating through the peripheral wall of the rotating disc along the circumferential direction of the rotating disc and facing the sliding blocks, the rotating driving piece drives the adapter piece to rotate, and the two sliding blocks sequentially enter the two adjacent sliding grooves in a circulating mode and slide along the sliding grooves to drive the rotating disc to rotate.

8. The extended tool magazine of claim 1, wherein: the transfer driving part comprises a first transfer driving part and a second transfer driving part, the first transfer driving part is arranged on the supporting part, the second transfer driving part is arranged on the first transfer driving part, the grabbing part is arranged on one side, facing the existing tool magazine, of the second transfer driving part, the first transfer driving part is used for driving the second transfer driving part and the grabbing part to stop when moving to the tool changing position, the grabbing part grabs the tool to be changed at the tool changing position, and the second transfer driving part is used for driving the grabbing part to move towards the existing tool magazine so as to push the tool to be installed in the existing tool magazine.

9. The extended tool magazine of claim 8, wherein: should snatch the piece and including snatching driving piece and two clamping jaws, should snatch the driving piece and set up on this second removes the driving piece, should snatch the both sides of driving piece in this is arranged in to two these clamping jaws branches, should snatch the driving piece and can drive two these clamping jaws and open or closed relatively.

10. The extended tool magazine of claim 9, wherein: the grabbing piece further comprises a bolt arranged on one clamping jaw, the other clamping jaw is correspondingly provided with an insertion hole, and when the two clamping jaws move oppositely, the bolt can be inserted into the insertion hole and slides along the insertion hole.