Automatic tool clamping system

Abstract

An embodiment of the present invention discloses an automatic tool clamping system, which includes a support mechanism, a rotary drive device, a tool bearing mechanism, a jacking drive device, a jacking arm, a tool changing mechanism, and a tool changing mechanism drive device. The rotary drive device is disposed on the support mechanism; the tool bearing mechanism is rotatably disposed on the support mechanism and is in transmission connection with the rotary drive device; the jacking drive device is disposed on the support mechanism; the jacking arm is located below the tool bearing mechanism and is connected to the jacking drive device; the tool changing mechanism is disposed on the support mechanism and is located above the tool bearing mechanism; and the tool changing mechanism drive device is disposed on the support mechanism and is in transmission connection with the tool changing mechanism. The automatic tool clamping system of the embodiment of the present invention can automatically change tools within a CNC machine, reducing logistics costs and reducing the number of people required to perform tool changing operations. In addition, the automatic tool clamping system of the embodiment of the present invention is compatible with tools of different specifications.

Description

Technical Field

[0001] The present invention relates to the technical field related to automation equipment, and in particular to an automatic tool clamping system. Background Art

[0002] Cutting tools in machining centers wear out quickly when processing products, and operators spend a long time changing tools, which affects machine utilization. In addition, removed tools and their handles must be sent to the tool magazine for replacement, wasting turnover resources and consuming manpower. Summary of the Invention

[0003] To address at least one of the deficiencies of the prior art, the present invention provides an automatic tool clamping system.

[0004] The automatic tool clamping system mainly includes a supporting mechanism, a rotation driving device, a tool bearing mechanism, a lifting driving device, a lifting arm, a tool changing mechanism, and a tool changing mechanism driving device.

[0005] In which, the rotation drive device is arranged on the support mechanism; the tool carrying mechanism is rotatably arranged on the support mechanism and is transmission-connected to the rotation drive device; the jacking drive device is arranged on the support mechanism; the jacking arm is located below the tool carrying mechanism and is connected to the jacking drive device; the tool changing mechanism is arranged on the support mechanism and located above the tool carrying mechanism; the tool changing mechanism drive device is arranged on the support mechanism and is transmission-connected to the tool changing mechanism.

[0006] According to a preferred embodiment of the present invention, it also includes 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 drive device, the jacking drive device and the tool changing mechanism drive device are all connected to the control device; the rotation angle sensor is arranged below the tool carrying mechanism; the highest position sensor and the lowest position sensor are arranged on the side of the jacking drive device, and the highest position sensor is located above the lowest position sensor.

[0007] According to a preferred embodiment of the present invention, the tool carrying mechanism includes a tool carrier and a plurality of lifting rods arranged along the circumference of the tool carrier; the tool carrier is rotatably disposed on the support mechanism; a first limit member is provided at the top of the lifting rod, and a second limit member is provided at the bottom of the lifting rod; in the installed state, the first limit member is located above the tool carrier, and the second limit member is located below the tool carrier; and a return spring is also provided between the second limit member and the tool carrier; the lifting arm is located below the second limit member.

[0008] According to a preferred embodiment of the present invention, the tool supporting mechanism is transmission-connected to the rotary drive device via a belt transmission mechanism, a chain transmission mechanism or a gear transmission mechanism.

[0009] According to a preferred embodiment of the present invention, the tool changing mechanism includes a tool unloading sub-mechanism and a locking sub-mechanism; the tool unloading sub-mechanism and the locking sub-mechanism are connected to the tool changing mechanism drive device through a belt transmission mechanism, a chain transmission mechanism or a gear transmission mechanism.

[0010] According to a preferred embodiment of the present invention, the tool unloading mechanism includes a tool unloading clamping device and a tool unloading nut sleeve; the tool unloading nut sleeve is rotatably arranged on the support mechanism and is transmission-connected to the tool changing mechanism driving device; the tool unloading clamping device is arranged on the support mechanism and is located below the tool unloading nut sleeve.

[0011] According to a preferred embodiment of the present invention, the locking sub-mechanism includes a locking clamping device and a locking nut sleeve; the locking nut sleeve is rotatably arranged on the supporting mechanism and is transmission-connected to the tool changing mechanism driving device; wherein the locking nut sleeve has an opposite rotation direction to the tool removing nut sleeve; the locking clamping device is arranged on the supporting mechanism and is located below the locking nut sleeve.

[0012] According to a preferred embodiment of the present invention, there are two groups of the jacking drive devices, and each group of the jacking drive devices is connected to a jacking arm; wherein, the jacking arm connected to one group of the jacking drive devices is located below the knife unloading sub-mechanism; and the jacking arm connected to the other group of the jacking drive devices is located below the locking sub-mechanism.

[0013] According to a preferred embodiment of the present invention, the jacking drive device is an electric telescopic rod, a pneumatic telescopic rod or a hydraulic telescopic rod; the jacking arm is arranged on the telescopic rod of the electric telescopic rod, the pneumatic telescopic rod or the hydraulic telescopic rod; or, the jacking drive device is a screw lifting device; the jacking arm is arranged on the slider of the screw lifting device.

[0014] According to a preferred embodiment of the present invention, a tool collecting groove and a recovery port are provided on the tool carrying mechanism; the tool collecting groove is provided in the middle of the tool carrier; the recovery port is provided at the edge of the tool carrier and is connected to the tool collecting groove through an inclined channel.

[0015] Compared with the prior art, the automatic tool clamping system of the embodiment of the present invention has the following beneficial effects:

[0016] The automatic tool clamping system of the embodiment of the present invention can automatically change tools in a CNC machine, reducing logistics costs and reducing the number of people required for tool changing operations. In addition, the automatic tool clamping system of the embodiment of the present invention is compatible with tools of different specifications.

[0017] Some additional features of the present invention may be set forth in the following description. Some additional features of the present invention will be apparent to those skilled in the art from an examination of the following description and accompanying drawings, or from the manufacture or operation of the embodiments. The disclosed features of the present invention may be realized and attained by practice or use of the various methods, means, and combinations of the specific embodiments described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute a limitation of the present invention. In each figure, the same reference numerals represent the same components.

[0019] Figures 1 to 2 is a schematic structural diagram of an automatic tool clamping system according to some embodiments of the present invention;

[0020] Figures 3 to 7 Schematic diagram of the internal structure of an automatic tool clamping system according to some embodiments of the present invention. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0022] It should be noted that if the description and claims of the present invention and the above-mentioned drawings refer to the terms "first", "second", etc., they are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate to facilitate the embodiments of the present invention described herein. In addition, if the terms "including" and "having" and any variations thereof are involved, it is intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] In the present invention, when terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inside," "outside," "center," "vertical," "horizontal," "transverse," and "longitudinal" are used, the orientations or positions they indicate are based on those shown in the accompanying drawings. These terms are primarily intended to better describe the present invention and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0024] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0025] Furthermore, in this disclosure, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on the specific circumstances.

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] The embodiment of the invention discloses an automatic tool clamping system.

[0028] like Figures 1 to 7 As shown, the automatic tool clamping system may include a supporting mechanism 100 , a rotation driving device 200 , a tool carrying mechanism 300 , a lifting driving device 400 , a lifting arm 500 , a tool changing mechanism 600 and a tool changing mechanism driving device 700 .

[0029] Exemplarily, the support mechanism 100 may include a base plate 110 and a support frame 120 arranged 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 arranged on the support frame 120, so that the support mechanism 100 has a box structure. A box door 170 is also arranged on the support frame 120. The box door 170 is connected to the support frame 120 in an openable and closable manner. Furthermore, a hollow portion is provided on the upper cover plate 160, and the support frame 120 at the position corresponding to the hollow portion is a mounting plate 122. A sliding cover 190 is also provided on the upper cover plate 160. The sliding cover 190 is slidably arranged on the upper cover plate 160, so that the sliding cover 190 can completely cover the hollow portion. The support mechanism 100 adopting the above-mentioned structure can better prevent foreign matter from entering and affecting the normal operation of the system.

[0030] The rotation drive device 200 is provided on the support mechanism 100. Specifically, the rotation drive device 200 can be fixed to the support frame 120 via a mounting plate. Exemplarily, the rotation drive device 200 can be a drive motor, such as a stepping motor.

[0031] Illustratively, the tool carrying mechanism 300 includes a tool carrying plate 310 and a plurality of lifting rods 320 arranged along the circumference of the tool carrying plate 310 .

[0032] The tool carrier 310 is rotatably mounted on the support mechanism 100. For example, the tool carrier 310 can be rotatably mounted on the support mechanism 100 via a rotating shaft. Specifically, a bearing seat is provided on the base plate 110, the bottom of the rotating shaft is rotatably mounted on the bearing seat via a bearing, and the top of the rotating shaft is fixedly connected to the bottom of the tool carrier 310, thereby enabling the tool carrier 310 to be rotatably mounted on the support mechanism 100.

[0033] A first position-limiting member 330 is provided at the top of the lifting rod 320, and a second position-limiting member 340 is provided at the bottom of the lifting rod 320. In a use state, the tool to be replaced can be placed on the first position-limiting member 330.

[0034] In the installed state, the first stopper 330 is located above the tool carrier 310, and the second stopper 340 is located below the tool carrier 310. The lifting arm 500 is located below the second stopper 340. Furthermore, a return spring 350 is disposed between the second stopper 340 and the tool carrier 310. When the lifting arm 500 is lifted, the return spring 350 is compressed. When the lifting arm 500 is lowered, the return spring 350 returns the lifting rod 320 to its original position. The return spring 350 ensures that the lifting rod 320 can be reset after being lifted.

[0035] The tool carrier mechanism 300 is in transmission connection with the rotary drive device 200. Exemplarily, the tool carrier mechanism 300 is in transmission connection with the rotary drive device 200 via a belt transmission mechanism, a chain transmission mechanism, or a gear transmission mechanism. For example, in this embodiment, the tool carrier mechanism 300 and the rotary drive device 200 can be in transmission connection via a belt transmission mechanism comprising a first pulley, a transmission belt 910, and a second pulley. Specifically, the first pulley is connected to the output end of the rotary drive device 200, the second pulley is mounted on the rotating shaft, and the first pulley and the second pulley are connected via a transmission belt 910, so that the rotary drive device 200 can drive the tool carrier mechanism 300 to rotate via the belt transmission mechanism formed by the first pulley, the transmission belt 910, and the second pulley.

[0036] The tool changing mechanism 600 is provided on the support mechanism 100 and is located above the tool bearing mechanism 300. Specifically, the tool changing mechanism 600 is provided on the mounting plate 122 located on the top of the support frame 120 in the support mechanism 100.

[0037] The tool changing mechanism 600 may include a tool unloading sub-mechanism. Exemplarily, the tool unloading sub-mechanism may include a tool unloading clamping device 610 and a tool unloading nut sleeve 620. The tool unloading nut sleeve 620 is rotatably mounted on the support mechanism 100 and is in transmission connection with the tool changing mechanism drive device 700. Specifically, the tool unloading nut sleeve 620 may be rotatably mounted on a mounting plate 122 in the support mechanism 100 via a bearing. The tool unloading clamping device 610 is mounted on the support mechanism 100 and positioned below the tool unloading nut sleeve 620. Specifically, a second mounting plate 121 is provided on a side of the support frame 120. The tool unloading clamping device 610 is mounted on the second mounting plate 121, such that the clamping jaws in the tool unloading clamping device 610 are positioned below the tool unloading nut sleeve 620, facilitating tool gripping. The tool unloading clamping device 610 may employ electric, pneumatic, or hydraulic clamping jaws.

[0038] The tool changing mechanism 600 may further include a locking sub-mechanism. Exemplarily, the locking sub-mechanism may include a locking clamping device 630 and a locking nut sleeve 640. The locking nut sleeve 640 is rotatably mounted on the support mechanism 100 and is in transmission connection with the tool changing mechanism drive device 700. Specifically, the locking nut sleeve 640 is rotatably mounted on the mounting plate 122 of the support mechanism 100 via a bearing. The locking nut sleeve 640 rotates in the opposite direction to the tool removal nut sleeve 620. The locking clamping device 630 is mounted on the support mechanism 100 and positioned below the locking nut sleeve 640. Specifically, the locking clamping device 630 is mounted on the second mounting plate 121 so that the clamping jaws of the locking clamping device 630 are positioned below the locking nut sleeve 640 to facilitate tool gripping. The locking clamping device 630 may employ electric, pneumatic, or hydraulic clamping jaws.

[0039] Among them, the tool changing mechanism driving device 700 is arranged on the supporting mechanism 100 and is connected to the tool changing mechanism 600 in transmission. Exemplarily, the tool changing mechanism driving device 700 can adopt a driving motor, such as a stepping motor. The knife unloading sub-mechanism and the locking sub-mechanism can be connected to the tool changing mechanism driving device 700 in transmission 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 and the knife unloading sub-mechanism and the locking sub-mechanism can adopt a gear transmission mechanism to achieve transmission connection. Specifically, a first gear 920 is connected to the 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 knife unloading nut sleeve 620. In the installed state, the second gear 940 and the third gear 950 are meshed with each other, and the first gear 920 is meshed with the second gear 940 directly or through the intermediate gear 930, so that the tool changing mechanism driving device 700 can drive the tool removal nut sleeve 620 and the locking nut sleeve 640 to rotate through the gear transmission mechanism, and the locking nut sleeve 640 rotates in the opposite direction to the tool removal nut sleeve 620 to complete the locking and loosening of the tool handle nut.

[0040] As a preferred embodiment, both the locking nut sleeve 640 and the tool nut sleeve 620 can be torque wrench heads. By using torque wrench heads as the locking nut sleeve and the tool nut sleeve, the tightness of the handle nut can be controlled by a preset torque, thereby achieving high-precision tool changing.

[0041] Furthermore, the tool carrier 300 is provided with a tool collection trough 360 and a recovery port 370. The tool collection trough 360 is located in the center of the tool carrier 310. The recovery port 370 is located at the edge of the tool carrier 300 and is connected to the tool collection trough 360 via an inclined channel. During use, the tool carrier 310 rotates, moving the recovery port 370 below the corresponding position of the tool unloading mechanism. After being unloaded by the tool unloading mechanism, the tool falls from above the recovery port 370 into the recovery port 370 and then flows along the inclined channel into the tool collection trough 360, completing the tool recovery process.

[0042] The lifting drive device 400 is disposed on the support mechanism 100. Specifically, the lifting drive device 400 can be mounted on the second mounting plate 121. The lifting arm 500 is located below the tool bearing mechanism 300 and is connected to the lifting drive device 400, so that the lifting drive device 400 can drive the lifting arm 500 to move up and down, thereby driving the lifting rod 320 to move up and down, lifting the tool placed on the top of the lifting rod 320 to the tool changing position or lifting the top of the lifting rod 320 to the tool unloading position to unload the tool onto the top of the lifting rod 320.

[0043] For example, the lifting drive device 400 can be an electric telescopic rod, a pneumatic telescopic rod, or a hydraulic telescopic rod. The lifting arm 500 is disposed on the telescopic rod of the electric telescopic rod, the pneumatic telescopic rod, or the hydraulic telescopic rod. The lifting drive device 400 can also be a screw lifting device. The lifting arm 500 is disposed on the slider of the screw lifting device.

[0044] Furthermore, in some embodiments, two sets of jacking drive devices 400 may be provided, each set of jacking drive devices 400 being connected to a jacking arm 500. The jacking arm 500 connected to one set of jacking drive devices 400 is located below the tool unloading sub-mechanism. The jacking arm 500 connected to the other set of jacking drive devices 400 is located below the locking sub-mechanism. This allows for separate control of tool changing and tool unloading.

[0045] Furthermore, the automatic tool clamping system also includes a control device, a rotation angle sensor, a maximum position sensor, and a minimum position sensor. The rotation angle sensor, the maximum position sensor, the minimum position sensor, the rotation drive device 200, the lifting drive device 400, and the tool change mechanism drive device 700 are all connected to the control device.

[0046] The rotation angle sensor 810 is located below the tool support mechanism 300. The highest position sensor 820 and lowest position sensor 830 are located on the sides of the lifting drive 400, with the highest position sensor located above the lowest position sensor. This controls the tool's lifting position, ensuring that tool changes meet precise requirements.

[0047] For example, the rotation angle sensor can be an angle sensor. The highest position sensor 820 and the lowest position sensor 830 can be proximity switches. The control device can be a microcontroller, a single-chip microcomputer, or an industrial computer. Alternatively, the control device can be a control device of a CNC machining center.

[0048] The working process of the automatic tool clamping system according to the embodiment of the present invention is as follows:

[0049] During operation, the automatic tool clamping system of the embodiment of the present invention is installed on one side of the CNC workbench to facilitate rapid response and accurate tool change;

[0050] When a new tool needs to be replaced, the workbench drives the tool automatic clamping system to move to the spindle position;

[0051] The spindle descends along the Z axis to the tool unloading position, and the tool holder nut is placed into the tool unloading nut sleeve in the tool unloading mechanism. The tool unloading clamping device clamps the tool. Then, the tool changing mechanism driving device drives the tool unloading nut sleeve to rotate through the gear transmission mechanism, loosening the tool holder nut. The spindle rises along the Z axis to disengage the tool. The rotary driving device drives the tool carrier to rotate through the belt transmission mechanism, and rotates the recovery port to the bottom of the corresponding position of the tool unloading mechanism. The tool unloading clamping device is released, and the tool falls from the recovery port from above and enters the tool collection tank along the inclined channel, completing the recovery of the tool.

[0052] The spindle moves to the top of the tool changing position, descends along the Z axis to the tool changing position, and places the tool shank nut into the locking nut sleeve of the locking sub-mechanism; the rotary drive device drives the tool carrier to rotate through the belt transmission mechanism, and rotates the lifting rod with the replacement tool to the bottom of the corresponding locking sub-mechanism; the jacking drive device drives the jacking arm to rise, and the jacking arm drives the lifting rod to rise, and inserts the replacement tool into the tool shank; the locking clamping device clamps the replacement tool; the jacking drive device drives the lifting rod to jack up for the second time through the jacking arm to put the replacement tool in place; the tool changing mechanism drive device drives the locking nut sleeve to rotate through the gear transmission mechanism to tighten the tool shank nut; the spindle rises and moves along the Z axis to complete the tool change. After the tool change is completed, the tool is aligned and the workpiece is processed.

[0053] The automatic tool clamping system of the embodiment of the present invention can automatically change tools in a CNC machine, reducing logistics costs and reducing the number of people required for tool changing operations. In addition, the automatic tool clamping system of the embodiment of the present invention is compatible with tools of different specifications.

[0054] It should be noted that all features disclosed in this specification, or steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can be combined in any manner.

[0055] Furthermore, the above-described specific embodiments are merely illustrative. Persons skilled in the art may devise various solutions based on the disclosure of the present invention, and such solutions fall within the scope of the present invention and are intended to be protected by the present invention. Persons skilled in the art should understand that the present description and drawings are intended to be illustrative and not to limit the scope of the claims. The scope of protection of the present invention is defined by the claims and their equivalents.

Claims

1. A tool automatic clamping system, characterized in that: It includes: Support mechanism (100); a rotation driving device (200), the rotation driving device (200) being arranged on the supporting mechanism (100); a tool bearing mechanism (300), the tool bearing mechanism (300) being rotatably disposed on the support mechanism (100) and being transmission-connected to the rotary drive device (200); A lifting drive device (400), wherein the lifting drive device (400) is arranged on the supporting mechanism (100); a lifting arm (500), the lifting arm (500) being located below the tool bearing mechanism (300) and connected to the lifting drive device (400); a tool changing mechanism (600), the tool changing mechanism (600) being arranged on the supporting mechanism (100) and located above the tool bearing mechanism (300); as well as a tool changing mechanism driving device (700), the tool changing mechanism driving device (700) being arranged on the supporting mechanism (100) and being in transmission connection with the tool changing mechanism (600); The tool carrying mechanism (300) comprises a tool carrying disc (310) and a plurality of lifting rods (320) arranged along the circumference of the tool carrying disc (310); The tool carrier (310) is rotatably arranged on the support mechanism (100); A first position-limiting member (330) is provided at the top of the lifting rod (320), and a second position-limiting member (340) is provided at the bottom of the lifting rod (320); In the installed state, the first limiting member (330) is located above the tool carrier (310), and the second limiting member (340) is located below the tool carrier (310); Furthermore, a return spring (350) is provided between the second limiting member (340) and the tool carrier (310); The lifting arm (500) is located below the second limiting member (340); The tool changing mechanism (600) comprises a tool unloading sub-mechanism and a locking sub-mechanism; The knife unloading sub-mechanism and the locking sub-mechanism are transmission-connected to the knife-changing mechanism drive device (700) via a belt transmission mechanism, a chain transmission mechanism or a gear transmission mechanism; A tool collecting groove (360) and a recovery port (370) are provided on the tool bearing mechanism (300); The tool collecting groove (360) is arranged in the middle of the tool carrier (310); the recovery port (370) is arranged at the edge of the tool carrier (300) and is connected to the tool collecting groove (360) through an inclined channel.

2. The automatic tool clamping system according to claim 1, characterized in that: Also included are a control device, a rotation angle sensor, a maximum position sensor, and a minimum position sensor; The rotation angle sensor, the highest position sensor, the lowest position sensor, the rotation drive device (200), the lifting drive device (400), and the tool changing mechanism drive device (700) are all connected to the control device; The rotation angle sensor is arranged below the tool carrying mechanism (300); The highest position sensor and the lowest position sensor are arranged on the side of the jacking drive device (400), and the highest position sensor is located above the lowest position sensor.

3. The automatic tool clamping system according to claim 1, characterized in that: The tool carrying mechanism (300) is transmission-connected to the rotary drive device (200) via a belt transmission mechanism, a chain transmission mechanism, or a gear transmission mechanism.

4. The automatic tool clamping system according to claim 1, characterized in that: The knife unloading mechanism comprises a knife unloading clamping device (610) and a knife unloading nut sleeve (620); The tool-removing nut sleeve (620) is rotatably arranged on the support mechanism (100) and is transmission-connected to the tool-changing mechanism drive device (700); The tool unloading clamping device (610) is arranged on the support mechanism (100) and is located below the tool unloading nut sleeve (620).

5. The automatic tool clamping system according to claim 1, characterized in that: The locking sub-mechanism comprises a locking clamping device (630) and a locking nut sleeve (640); The locking nut sleeve (640) is rotatably arranged on the support mechanism (100) and is in transmission connection with the tool changing mechanism driving device (700); wherein the locking nut sleeve (640) and the tool removing nut sleeve (620) rotate in opposite directions; The locking and clamping device (630) is arranged on the supporting mechanism (100) and is located below the locking nut sleeve (640).

6. The automatic tool clamping system according to claim 1, characterized in that: There are two groups of the jacking drive devices (400), and each group of the jacking drive devices (400) is connected to a jacking arm (500); Wherein, one group of jacking arms (500) connected to the jacking drive device (400) is located below the knife unloading sub-mechanism; and another group of jacking arms (500) connected to the jacking drive device (400) is located below the locking sub-mechanism.

7. The automatic tool clamping system according to claim 1, characterized in that: The lifting drive device (400) is an electric telescopic rod, a pneumatic telescopic rod, or a hydraulic telescopic rod; the lifting arm (500) is arranged on the telescopic rod of the electric telescopic rod, the pneumatic telescopic rod, or the hydraulic telescopic rod; or, The lifting drive device (400) is a screw lifting device; The lifting arm (500) is arranged on a slider of the screw lifting device.

Images