CN217619296U

CN217619296U - Automatic cutter clamping system

Info

Publication number: CN217619296U
Application number: CN202221156824.4U
Authority: CN
Inventors: 赵以晟; 郭傲; 王文辉; 刘伟; 岳林峰
Original assignee: Chengdu Jiayi Science & Technology Co ltd
Current assignee: Chengdu Jiayi Science & Technology Co ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2022-10-21
Anticipated expiration: 2032-05-12

Abstract

The embodiment of the utility model discloses cutter automatic clamping system, it includes that supporting mechanism, rotary drive, cutter bear mechanism, jacking drive arrangement, jacking arm, tool changing mechanism and tool changing mechanism drive arrangement. Wherein, the rotary driving device is arranged on the supporting mechanism; the cutter bearing mechanism is rotatably arranged on the supporting mechanism and is in transmission connection with the rotary driving device; the jacking driving device is arranged on the supporting mechanism; the jacking arm is positioned below the cutter bearing mechanism and connected with the jacking driving device; the tool changing mechanism is arranged on the supporting mechanism and is positioned above the tool bearing mechanism; the tool changing mechanism driving device is arranged on the supporting mechanism and is in transmission connection with the tool changing mechanism. The automatic cutter clamping system provided by the embodiment of the utility model can automatically change cutters in a CNC machine table, thereby reducing the logistics cost and reducing the cutter changing operators; additionally, the utility model discloses cutter automatically clamped system can compatible different specifications's cutter.

Description

Automatic cutter clamping system

Technical Field

The utility model belongs to the technical field of the relevant technique of automation equipment and specifically relates to a cutter automatic clamping system is related to.

Background

When a machining center machines a product, a cutter is worn quickly, and an operator has long cutter changing time to influence the utilization rate of a machine; in addition, the disassembled cutter and the tool holder are conveyed to a tool magazine to be replaced, so that turnover resources are wasted and manpower is consumed.

SUMMERY OF THE UTILITY MODEL

For solving the not enough of at least one prior art, the utility model provides a cutter automatic clamping system.

The automatic cutter clamping system mainly comprises a supporting mechanism, a rotation driving device, a cutter bearing mechanism, a jacking driving device, a jacking arm, a cutter changing mechanism and a cutter changing mechanism driving device.

Wherein the rotary driving device is arranged on the supporting mechanism; the cutter bearing mechanism is rotatably arranged on the supporting mechanism and is in transmission connection with the rotary driving device; the jacking driving device is arranged on the supporting mechanism; the jacking arm is positioned below the cutter bearing mechanism and connected with the jacking driving device; the tool changing mechanism is arranged on the supporting mechanism and is positioned above the tool bearing mechanism; the tool changing mechanism driving device is arranged on the supporting mechanism and is in transmission connection with the tool changing mechanism.

According to a preferred embodiment of the present invention, the device further comprises a control device, a rotation angle sensor, a highest position sensor and a lowest position sensor; the rotation angle sensor, the highest position sensor, the lowest position sensor, the rotation driving device, the jacking driving device and the tool changing mechanism driving device are all connected with the control device; the rotation angle sensor is arranged below the cutter bearing mechanism; the highest position sensor and the lowest position sensor are arranged on the side of the jacking driving device, and the highest position sensor is positioned above the lowest position sensor.

According to a preferred embodiment of the present invention, the tool carrying mechanism comprises a tool carrying disc and a plurality of lifting rods arranged circumferentially along the tool carrying disc; the cutter carrying disc is rotatably arranged on the supporting mechanism; a first limiting piece is arranged at the top of the lifting rod, and a second limiting piece is arranged at the bottom of the lifting rod; in an installation state, the first limiting piece is positioned above the cutter carrying disc, and the second limiting piece is positioned below the cutter carrying disc; a return spring is arranged between the second limiting piece and the cutter carrying disc; the jacking arm is located below the second limiting part.

According to a preferred embodiment of the invention, the tool carrier is in driving connection with the rotary drive via a belt drive, a chain drive or a gear drive.

According to a preferred embodiment of the present invention, the tool changing mechanism comprises a tool unloading mechanism and a locking mechanism; the cutter unloading sub-mechanism and the locking sub-mechanism are in transmission connection with the cutter changing mechanism driving device through a belt transmission mechanism, a chain transmission mechanism or a gear transmission mechanism.

According to a preferred embodiment of the present invention, the knife-removing mechanism comprises a knife-removing holding device and a knife-removing nut sleeve; the tool unloading nut sleeve is rotatably arranged on the supporting mechanism and is in transmission connection with the tool changing mechanism driving device; the cutter unloading clamping device is arranged on the supporting mechanism and is positioned below the cutter unloading nut sleeve.

According to a preferred embodiment of the present invention, the locking sub-mechanism comprises a locking clamping device and a locking nut sleeve; the locking nut sleeve is rotatably arranged on the supporting mechanism and is in transmission connection with the tool changing mechanism driving device; wherein the rotation directions of the locking nut sleeve and the dismounting tool nut sleeve are opposite; the locking clamping device is arranged on the supporting mechanism and is positioned below the locking nut sleeve.

According to a preferred embodiment of the present invention, the jacking driving devices are provided in two groups, and each group of the jacking driving devices is connected to a jacking arm; the jacking arms connected with the jacking driving devices are positioned below the cutter unloading sub-mechanisms; and the other group of jacking arms connected with the jacking driving device are positioned below the locking sub-mechanism.

According to a preferred embodiment of the present invention, the jacking driving device is an electric telescopic rod, a pneumatic telescopic rod or a hydraulic telescopic rod; the jacking arm is arranged on the electric telescopic rod, the pneumatic telescopic rod or the telescopic rod of the hydraulic telescopic rod; or the jacking driving device is a screw rod lifting device; the jacking arm is arranged on a sliding block of the screw rod lifting device.

According to a preferred embodiment of the present invention, a tool collecting tank and a recovery port are provided on the tool carrying mechanism; the cutter collecting groove is arranged in the middle of the cutter carrying disc; the recycling port is arranged at the edge of the cutter carrying disc and is communicated with the cutter collecting tank through an inclined channel.

Compared with the prior art, the utility model discloses cutter automatic clamping system has following beneficial effect:

the automatic cutter clamping system provided by the embodiment of the utility model can automatically change cutters in a CNC machine table, thereby reducing the logistics cost and reducing the cutter changing operators; additionally, the utility model discloses cutter automatic clamping system can the compatible cutter of different specifications.

Additional features of the invention will be set forth in part in the description which follows. Additional features of the invention will be set forth in part in the description which follows and in part will be apparent to those having ordinary skill in the art upon examination of the following and the accompanying drawings or may be learned from the manufacture or operation of the embodiments. The features of the present disclosure may be realized and attained by practice or use of various methods, instrumentalities and combinations of the specific embodiments described below.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. Like reference symbols in the various drawings indicate like elements. Wherein,

fig. 1-2 are schematic structural views of an automatic tool clamping system according to some embodiments of the present invention;

fig. 3 to 7 are schematic diagrams illustrating an internal structure of the automatic tool clamping system according to some embodiments of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below 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 efforts shall belong to the protection scope of the present invention.

It should be noted that if the terms "first", "second", etc. are used in the description and claims of the present invention and in the accompanying drawings, they are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged as appropriate in order to facilitate the embodiments of the invention described herein. Furthermore, if the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present invention, if the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like are referred to, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, in the present invention, the terms "mounted", "disposed", "provided", "connected", "coupled", etc. should be understood in a broad sense if they relate to one another. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The embodiment of the utility model discloses cutter automatic clamping system.

As shown in fig. 1 to 7, the automatic tool clamping system may include a support mechanism 100, a rotation driving device 200, a tool carrying mechanism 300, a lift driving device 400, a lift arm 500, a tool changing mechanism 600, and a tool changing mechanism driving device 700.

For example, the supporting mechanism 100 may include a base plate 110 and a supporting bracket 120 disposed on the base plate 110. A left side plate 130, a right side plate 140, a rear side plate 150 and an upper cover plate 160 are provided on the support frame 120 so that the support mechanism 100 has a box structure. A door 170 is further provided on the supporting frame 120. The door 170 is openably and closably coupled to the support bracket 120. Further, a hollow portion is disposed on the upper cover plate 160, and the supporting frame 120 corresponding to the hollow portion is a mounting plate 122. A sliding cover 190 is further provided on the upper cover plate 160. The sliding cover 190 is slidably disposed on the upper cover plate 160, so that the sliding cover 190 can completely cover the hollow portion. By adopting the supporting mechanism 100 with the structure, foreign matters can be well prevented from entering to influence the normal work of the system.

Wherein the rotation driving device 200 is provided on the support mechanism 100. Specifically, the rotary driving device 200 may be fixed to the support bracket 120 by a mounting plate. Illustratively, the rotary drive device 200 may employ a drive motor, such as a stepper motor.

Illustratively, the tool carrying mechanism 300 includes a tool carrier disk 310 and a plurality of lift pins 320 disposed circumferentially along the tool carrier disk 310.

Wherein the tool carrier disk 310 is rotatably arranged on the support mechanism 100. Illustratively, the tool carrier 310 may be rotatably disposed on the support mechanism 100 by a rotational axis. Specifically, a bearing seat is provided on the base plate 110, the bottom of the rotating shaft is rotatably mounted on the bearing seat through a bearing, and the top of the rotating shaft is fixedly connected to the bottom of the tool-carrying plate 310, so that the tool-carrying plate 310 is rotatably disposed on the supporting mechanism 100.

A first stopper 330 is disposed on the top of the lifting rod 320, and a second stopper 340 is disposed on the bottom of the lifting rod 320. In the use state, a tool to be replaced may be disposed on the first limiting member 330.

In the mounted state, the first stop member 330 is located above the tool carrier 310, and the second stop member 340 is located below the tool carrier 310. The lifting arm 500 is located below the second limiting member 340. Further, a return spring 350 is provided between the second stop 340 and the tool carrier 310. The return spring 350 is compressed during the lifting of the lifting rod 320 by the lifting arm 500, and when the lifting arm 500 descends, the lifting rod 320 can be returned by the elastic force of the return spring 350. By providing the return spring 350, the lifting rod 320 can be returned by the return spring 350 after being lifted.

The tool carrier 300 is in driving connection with the rotary drive 200. The tool carrier 300 is in driving connection with the rotary drive 200, for example, via a belt drive, a chain drive or a gear drive. For example, in the present embodiment, the tool carrier 300 and the rotary drive device 200 may be in driving connection by a belt drive mechanism including a first pulley, a drive belt 910, and a second pulley. Specifically, a first belt wheel is connected to an output end of the rotary driving device 200, a second belt wheel is installed on the rotating shaft, and the first belt wheel and the second belt wheel are connected through a transmission belt 910, so that the rotary driving device 200 can drive the tool carrying mechanism 300 to rotate through a belt transmission mechanism formed by the first belt wheel, the transmission belt 910 and the second belt wheel.

Wherein the tool changing mechanism 600 is provided on the support mechanism 100 above the tool carrying mechanism 300. Specifically, the tool changer 600 is disposed on the mounting plate 122 on the top of the support frame 120 in the support mechanism 100.

Wherein the tool changing mechanism 600 may comprise a tool removing mechanism. Illustratively, the unclamp mechanism may include an unclamp clamping device 610 and an unclamp nut sleeve 620. Wherein, the knife-unloading nut sleeve 620 is rotatably arranged on the supporting mechanism 100 and is in transmission connection with the knife-changing mechanism driving device 700. In particular, the knife discharge nut sleeve 620 may be rotatably disposed on the mounting plate 122 in the support mechanism 100 via bearings. Wherein the unclamp clamping device 610 is disposed on the support mechanism 100 below the unclamp nut sleeve 620. Specifically, a second mounting plate 121 is disposed on a side surface of the support frame 120. The unclamp clamping device 610 is positioned on the second mounting plate 121 such that the jaws of the unclamp clamping device 610 are positioned below the unclamp nut sleeve 620 to facilitate gripping of the tool. The tool-removing clamping device 610 may be an electric clamping jaw, a pneumatic clamping jaw, or a hydraulic clamping jaw.

Wherein, the tool changing mechanism 600 can also comprise a locking sub mechanism. Illustratively, the locking subassembly may include a locking clamp 630 and a locking nut sleeve 640. Wherein the locking nut sleeve 640 is rotatably arranged on the support mechanism 100 and is in driving connection with the tool changing mechanism driving device 700. Specifically, the locking nut sleeve 640 may be rotatably disposed on the mounting plate 122 in the support mechanism 100 by a bearing. Wherein the locking nut sleeve 640 rotates in the opposite direction to the discharge cutter nut sleeve 620. Wherein the locking clamp 630 is disposed on the support mechanism 100 below the locking nut socket 640. Specifically, the locking clamp 630 is positioned on the second mounting plate 121 such that the jaws of the locking clamp 630 are positioned below the locking nut sleeve 640 to facilitate grasping of the tool. Wherein, the locking and clamping device 630 can be an electric clamping jaw, a pneumatic clamping jaw or a hydraulic clamping jaw.

Wherein, tool changing mechanism drive device 700 is arranged on support mechanism 100 and is in transmission connection with tool changing mechanism 600. Illustratively, the tool changing mechanism driving device 700 may employ a driving motor, such as a stepping motor. The tool unloading sub-mechanism and the locking sub-mechanism can be in transmission connection with the tool changing mechanism driving device 700 through a belt transmission mechanism, a chain transmission mechanism or a gear transmission mechanism. For example, in the present embodiment, the tool changing mechanism driving device 700, the tool removing sub mechanism and the locking sub mechanism may adopt a gear transmission mechanism to realize transmission connection. Specifically, a first gear 920 is connected to an output end of the tool changing mechanism driving device 700, a second gear 940 is provided on the locking nut sleeve 640, and a third gear 950 is provided on the tool removing nut sleeve 620. In the installed state, the second gear 940 and the third gear 950 are engaged, and the first gear 920 is engaged with the second gear 940 directly or through the intermediate gear 930, so that the tool changing mechanism driving device 700 can rotate the tool removing nut sleeve 620 and the locking nut sleeve 640 through the gear transmission mechanism, and the locking nut sleeve 640 rotates in the opposite direction to the tool removing nut sleeve 620, so as to complete the locking and the loosening of the tool holder nut.

As a preferred embodiment, a torqueing wrench head may be used for both the locking nut sleeve 640 and the discharge knife nut sleeve 620. The torque wrench head is used as the locking nut sleeve and the tool unloading nut sleeve, so that the tightness degree of the tool holder nut can be controlled through preset torque, and high-precision tool changing action is realized.

Further, a tool collecting groove 360 and a recovery port 370 are provided on the tool holding mechanism 300. Wherein the tool collecting groove 360 is arranged in the middle of the tool carrying disc 310. The recovery port 370 is provided at the edge of the tool carrier plate 310 and communicates with the tool collection groove 360 through an inclined passage. When the tool collecting device is used, the tool carrying disc 310 rotates to enable the recovery opening 370 to rotate to the position below the corresponding position of the tool unloading mechanism, and after being unloaded by the tool unloading mechanism, the tool falls into the recovery opening 370 from the position above the recovery opening 370 and enters the tool collecting groove 360 along an inclined channel, so that the tool is recovered.

The jacking driving device 400 is disposed on the supporting mechanism 100. Specifically, the jacking driving device 400 may be mounted on the second mounting plate 121. Jacking arm 500 is located cutter carrier 300 below and is connected with jacking drive arrangement 400 to make jacking drive arrangement 400 can drive jacking arm 500 and reciprocate, thereby can drive lifter 320 and go up and down, will place the cutter jacking at lifter 320 top to the tool changing position or with lifter 320 top jacking to unloading the position and uninstalling the cutter on lifter 320 top.

Illustratively, the jacking driving device 400 may be an electric telescopic rod, a pneumatic telescopic rod, or a hydraulic telescopic rod. The jacking arm 500 is arranged on an electric telescopic rod, a pneumatic telescopic rod or a hydraulic telescopic rod. The jacking driving device 400 may also adopt a screw lifting device. The jacking arm 500 is arranged on a slide block of the screw rod lifting device.

Further, in some embodiments, two sets of jacking drivers 400 may be provided, and each set of jacking drivers 400 has a jacking arm 500 connected thereto. Wherein, the jacking arm 500 connected with a group of jacking driving devices 400 is positioned below the cutter unloading mechanism. The other set of jacking arms 500 connected with the jacking driving device 400 are positioned below the locking sub-mechanism. So that the tool changing and the tool unloading can be controlled respectively.

Furthermore, the automatic cutter clamping system further comprises a control device, a rotation angle sensor, a highest position sensor and a lowest position sensor. The rotation angle sensor, the highest position sensor, the lowest position sensor, the rotation driving device 200, the jacking driving device 400 and the tool changing mechanism driving device 700 are all connected with the control device.

Wherein the rotation angle sensor 810 is disposed below the tool carrier 300. The highest position sensor 820 and the lowest position sensor 830 are disposed at the side of the lift-up driving apparatus 400, and the highest position sensor is located above the lowest position sensor. The jacking position of the cutter is controlled, and the cutter replacement requirement can be accurately met.

For example, the rotation angle sensor may employ an angle sensor. The uppermost position sensor 820 and the lowermost position sensor 830 may employ proximity switches. The control device can adopt a microcontroller, a singlechip or an industrial personal computer. Alternatively, the control device may be a control device of a CNC machining center.

The utility model discloses cutter automatic clamping system's working process specifically as follows:

when the automatic tool clamping system works, the automatic tool clamping system is arranged on one side of the CNC workbench, so that the response is quick, and the tool changing accuracy is realized;

when the cutter needs to be replaced, the workbench drives the automatic cutter clamping system to move to the position of the main shaft;

the main shaft descends along the Z axis to a cutter unloading position, a cutter handle nut is placed into a cutter unloading nut sleeve in the cutter unloading mechanism, and the cutter is clamped by a cutter unloading clamping device; then the tool changing mechanism driving device drives the tool unloading nut sleeve to rotate through the gear transmission mechanism, and the tool holder nut of the tool is unscrewed; the main shaft rises along the Z axis to separate from the cutter; the rotary driving device drives the cutter carrying disc to rotate through the belt transmission mechanism, the recovery port is rotated to the position below the corresponding position of the cutter unloading mechanism, the cutter unloading clamping device is loosened, and the cutter falls into the recovery port from the upper part of the recovery port and enters the cutter collecting tank along an inclined channel to complete the recovery of the cutter;

the main shaft moves to the position above the tool changing position, descends along the Z axis and moves to the tool changing position, and a tool shank nut is placed into a locking nut sleeve of the locking sub mechanism; the rotary driving device drives the cutter carrying disc to rotate through the belt transmission mechanism, and the lifting rod provided with the replacement cutter is rotated to the position below the corresponding locking sub-mechanism; the jacking driving device drives the jacking arm to ascend, the jacking arm drives the lifting rod to ascend, and the replacement tool is inserted into the tool holder; the locking clamping device clamps the replacement tool; the jacking driving device drives the lifting rod to jack for the second time through the jacking arm so as to lead the replacement cutter to be in place; the tool changing mechanism driving device drives the locking nut sleeve to rotate through the gear transmission mechanism, and the nut of the tool shank is screwed tightly; and the main shaft ascends along the Z axis and moves away to complete tool changing, and after the tool is changed, the tool is set, and then the workpiece is processed.

It should be noted that all of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.

In addition, the above embodiments are exemplary, and those skilled in the art can devise various solutions in light of the disclosure, which are all within the scope of the disclosure and fall within the scope of the invention. It should be understood by those skilled in the art that the present specification and drawings are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims

1. The utility model provides a cutter self-holding system which characterized in that, it includes:

a support mechanism (100);

a rotary drive (200), the rotary drive (200) being arranged on the support mechanism (100);

the cutter bearing mechanism (300) is rotatably arranged on the supporting mechanism (100) and is in transmission connection with the rotary driving device (200);

the jacking driving device (400), the jacking driving device (400) is arranged on the supporting mechanism (100);

the jacking arm (500) is positioned below the cutter bearing mechanism (300) and connected with the jacking driving device (400);

the tool changing mechanism (600) is arranged on the supporting mechanism (100) and is positioned above the tool bearing mechanism (300);

and

the tool changing mechanism driving device (700) is arranged on the supporting mechanism (100) and is in transmission connection with the tool changing mechanism (600).

2. The automatic tool clamping system of claim 1, further comprising a control device, a rotation angle sensor, an uppermost position sensor, and a lowermost position sensor;

the rotation angle sensor, the highest position sensor, the lowest position sensor, the rotation driving device (200), the jacking driving device (400) and the tool changing mechanism driving device (700) are all connected with the control device;

the rotation angle sensor is arranged below the cutter bearing mechanism (300);

the highest position sensor and the lowest position sensor are arranged on the side of the jacking driving device (400), and the highest position sensor is positioned above the lowest position sensor.

3. The tool autoclaving system of claim 1, wherein the tool carrier (300) comprises a tool carrier (310) and a plurality of lifter bars (320) arranged circumferentially along the tool carrier (310);

the tool carrier disc (310) is rotatably arranged on the supporting mechanism (100);

a first limiting piece (330) is arranged at the top of the lifting rod (320), and a second limiting piece (340) is arranged at the bottom of the lifting rod (320);

in the mounted state, the first stop (330) is located above the tool carrier (310) and the second stop (340) is located below the tool carrier (310);

a return spring (350) is arranged between the second limiting piece (340) and the cutter carrier disc (310);

the jacking arm (500) is located below the second limiting piece (340).

4. The automatic tool clamping system according to claim 3, wherein the tool carrier (300) is in driving connection with the rotary drive (200) via a belt drive, a chain drive or a gear drive.

5. The automatic tool clamping system according to claim 1, wherein the tool changing mechanism (600) comprises a tool unloading mechanism and a locking mechanism;

the tool unloading sub mechanism and the locking sub mechanism are in transmission connection with the tool changing mechanism driving device (700) through a belt transmission mechanism, a chain transmission mechanism or a gear transmission mechanism.

6. The automated tool clamping system of claim 5, wherein said tool release sub-mechanism includes a tool release clamp assembly (610) and a tool release nut sleeve (620);

the cutter unloading nut sleeve (620) is rotatably arranged on the supporting mechanism (100) and is in transmission connection with the cutter changing mechanism driving device (700);

the cutter unloading clamping device (610) is arranged on the supporting mechanism (100) and is positioned below the cutter unloading nut sleeve (620).

7. The automatic tool clamping system of claim 5, wherein said locking sub-mechanism includes a locking clamp (630) and a locking nut sleeve (640);

the locking nut sleeve (640) is rotatably arranged on the supporting mechanism (100) and is in transmission connection with the tool changing mechanism driving device (700); wherein the locking nut sleeve (640) is rotated in an opposite direction to the breakout nut sleeve (620);

the locking clamp device (630) is disposed on the support mechanism (100) below the locking nut sleeve (640).

8. The automatic tool clamping system of claim 5,

two groups of jacking driving devices (400) are provided, and each group of jacking driving devices (400) is connected with a jacking arm (500);

the jacking arms (500) connected with the jacking driving devices (400) are positioned below the cutter unloading mechanism; and the other group of jacking arms (500) connected with the jacking driving device (400) are positioned below the locking sub-mechanism.

9. The automatic tool clamping system according to claim 1, wherein the jacking driving device (400) is an electric telescopic rod, a pneumatic telescopic rod or a hydraulic telescopic rod; the jacking arm (500) is arranged on the electric telescopic rod, the pneumatic telescopic rod or the telescopic rod of the hydraulic telescopic rod;

or,

the jacking driving device (400) is a screw rod lifting device; the jacking arm (500) is arranged on a sliding block of the screw rod lifting device.

10. The automatic tool clamping system according to claim 6, wherein a tool collecting groove (360) and a recovery port (370) are arranged on the tool carrying mechanism (300);

the cutter collecting groove (360) is arranged in the middle of the cutter carrying disc (310); the recovery port (370) is arranged at the edge of the cutter carrying disc (310) and is communicated with the cutter collecting groove (360) through an inclined channel.