Tool magazine door structure, CNC machine tool and intelligent tool changing method

Abstract

The present invention discloses a tool magazine door structure, a numerically controlled machine tool and an intelligent tool changing method, wherein the tool magazine door structure comprises a protective cover body and a tool magazine door body, wherein the top surface of the protective cover body is provided with a triangular prism-shaped sinking groove, and the bottom surface of the sinking groove is the top surface of the protective cover body; a tool magazine door through hole is provided on the bottom surface of the sinking groove, and the tool magazine door body is arranged above the tool magazine door through hole; a guide rail and a cylinder are installed on the side of the sinking groove perpendicular to the horizontal plane, one end of the tool magazine door body is installed in the guide rail, and the cylinder is fixed to the tool magazine door body; a manipulator for taking a tool is arranged above the sinking groove, and the manipulator clamps one end of the tool above the tool magazine door through hole to pass the tool through the tool magazine door through hole; a manipulator is arranged below the top surface of the protective cover body. The present invention can improve the tool changing efficiency, has good sealing and high safety, improves the service life of the equipment, and effectively improves the production efficiency.

Description

Technical Field

[0001] The present invention relates to the field of numerically controlled machine tools, and in particular to a tool magazine door structure, a numerically controlled machine tool and an intelligent tool changing method. Background Art

[0002] In the past 20 years, the domestic machine tool industry has achieved considerable development. The overall status of the industry is huge in scale, but there is still a certain gap between it and foreign advanced technologies in terms of high-end core technologies.

[0003] CNC machine tools are one of the most widely used CNC machine tools. They are mainly used for cutting and processing of inner and outer cylindrical surfaces of shaft workpieces or disk workpieces, inner and outer conical surfaces of arbitrary cone angles, complex rotary inner and outer curved surfaces, and cylindrical and conical threads, and can also perform grooving, drilling, reaming, reaming and boring, etc.

[0004] CNC machine tools automatically process the workpiece according to a pre-programmed processing program. We compile the workpiece processing process route, process parameters, tool motion trajectory, displacement, cutting parameters and auxiliary functions into a processing program sheet according to the instruction code and program format specified by the CNC machine tool, and then record the contents of this program sheet on the control medium, and then input it into the CNC device of the CNC machine tool, thereby commanding the machine tool to process the workpiece.

[0005] Internal protection plays an important role in the operation of five-axis machine tools. Compared with open machine tools without internal protection, its precision, durability and maintainability are improved to a higher level. Among the internal protection of closed machine tools, the tool magazine door between the tool magazine and the spindle is one of the most critical parts.

[0006] The existing tool magazine door structure has poor sealing performance, and the tool changing process in conjunction with the tool magazine door is time-consuming, inefficient, and prone to chip jamming, which affects the life of the equipment. Summary of the invention

[0007] The technical problem to be solved by the present invention is to overcome the defects in the prior art that the tool magazine door structure has poor sealing, the tool changing process coordinated with the tool magazine door is time-consuming, inefficient and prone to chip jamming, which affects the life of the equipment, and to provide a tool magazine door structure, CNC machine tool and intelligent tool changing method that can improve the tool changing efficiency, have good sealing and high safety, increase the service life of the equipment, and effectively improve production efficiency.

[0008] The present invention solves the above technical problems through the following technical solutions:

[0009] A tool magazine door structure is used for a tool magazine of a numerically controlled machine tool. The tool magazine door structure comprises a protective cover body and a tool magazine door body.

[0010] The top surface of the protective cover body is provided with a triangular prism-shaped sinking groove, and the bottom surface of the sinking groove is the top surface of the protective cover body;

[0011] A tool magazine door through hole is provided on the bottom surface of the sink, and the tool magazine door body is arranged above the tool magazine door through hole;

[0012] A guide rail and a cylinder are installed on the side of the sink that is perpendicular to the horizontal plane. One end of the tool magazine door body is installed in the guide rail. The cylinder is fixed to the tool magazine door body. When the piston of the cylinder is extended, it pushes the tool magazine door body to move along the guide rail to cover the tool magazine door through hole. When the piston of the cylinder is retracted, it drives the tool magazine door body to move along the guide rail to open the tool magazine door through hole. The side surface is the side surface of a triangular prism.

[0013] A manipulator for taking out a tool is provided above the sink, and the manipulator clamps one end of the tool above the through hole of the tool magazine door to pass the tool through the through hole of the tool magazine door;

[0014] A mechanical arm is provided below the top surface of the protective cover body. The mechanical arm clamps one end of the tool when the tool passes through the through hole of the tool magazine door. The mechanical arm is used to transfer the tool to the spindle of the CNC machine tool.

[0015] Preferably, the manipulator includes a turntable and a protective fence, the plane where the turntable is located is parallel to the side of the trough, and a plurality of fixing parts are evenly arranged on the circumference of the turntable, wherein the fixing part is used to fix one end of the tool, and one end of the fixing part is connected to the turntable through a rotating device, and the protective fence is provided with a protective fence through hole at a position corresponding to the through hole of the tool magazine door, and the rotating device drives the fixing part to swing so that the other end of the fixing part passes through the through hole of the protective fence, and the distance from the through hole of the protective fence to the through hole of the tool magazine door is less than the length of the fixing part.

[0016] Preferably, the tool magazine door body includes a first door panel and a second door panel, the angle between the first door panel and the second door panel is an obtuse angle, the first door panel is arranged above the bottom surface of the sink groove and parallel to the bottom surface of the sink groove, the second door panel is arranged above the upper end surface of the protective cover body and parallel to the upper end surface, and sealing strips are provided on the upper edge, the lower edge and the side edge close to the tool magazine door through hole of the tool magazine door body, and the sealing strip on the side edge close to the tool magazine door through hole is a self-clamping sealing strip.

[0017] Preferably, the upper end surface of the protective cover body is provided with a robot arm installation area, and the robot arm is fixed to the bottom of the installation area through a rotating shaft, and the axis of the rotating shaft is perpendicular to the upper end surface. The two ends of the robot arm each include a clamping member, and the clamping member clamps the tool on the robot arm when it is in the clamping position. When in the clamping position, the clamping member is located in the area of ​​the tool magazine door through hole covered by the second door panel, and the clamping member rotates 180 degrees after clamping the tool for the spindle to install the tool on the clamping member.

[0018] Preferably, the tool magazine door body is connected to the guide rail through a connecting piece, the piston of the cylinder is connected to the connecting piece through a transmission piece, a sensing bracket is provided on the top of the transmission piece, and two positioning sensors are also provided on the side of the trough. When the tool magazine door body is closed, the sensing bracket corresponds to the position of one positioning sensor, and when the tool magazine door body is opened to the maximum, the sensing bracket corresponds to the position of another positioning sensor. When the positioning sensor corresponds to the position of the sensing bracket, it sends a sensing signal to the control module of the CNC machine tool.

[0019] Preferably, an L-shaped cylinder mounting plate is further provided on the side of the trough, and the guide rail and the cylinder are fixed to the side of the trough through the cylinder mounting plate. A clamp for fixing the line is also provided above the cylinder mounting plate. A wiring opening for the line to pass through is provided on one side wall of the trough. A cylinder guard for protecting the cylinder is also fixed on the side of the trough. The side walls of the trough are the top and bottom surfaces of a triangular prism.

[0020] Preferably, a piezoelectric sensor is provided on the tool bar of the tool, and the piezoelectric sensor is used to collect the force data of the tool bar and transmit it to the control module of the CNC machine tool, and the control module is used to collect the operation data of the CNC machine tool.

[0021] The control module is also used to obtain the service life of the tool on the spindle according to the force data, the operation data and the corresponding relationship, wherein the corresponding relationship is the corresponding relationship between the force data, the operation data and the service life of the tool obtained by using an artificial intelligence algorithm;

[0022] The control module is also used to determine whether the remaining time of the tool on the spindle is less than a preset time based on the service life. If so, the tool magazine is notified to search for a spare tool of the same model as the tool on the spindle, and move the fixing of the spare tool to the position of the through hole in the protective fence. The preset time is greater than the time taken by the tool magazine to move the spare tool to the position of the through hole in the protective fence.

[0023] Preferably, the CNC machine tool is used in a production line, which includes a plurality of the CNC machine tools, a robot and a tool library, each of which includes a three-dimensional scanner, the scanning range of which includes the spindle of the CNC machine tool and the workpiece processing area, and the three-dimensional scanner is used to scan the reflectivity of the processing surface of the workpiece.

[0024] The control module is used to predict the number of tool consumption according to the production plan, the force data of each tool bar, the operation data of each CNC machine tool, the reflectivity of the machining surface and the corresponding relationship, wherein the control module adjusts the operation data of the CNC machine tool according to the reflectivity of the machining surface, and the number of tool consumption includes the tool consumption component of each CNC machine tool;

[0025] The control module is used to obtain the total number of tools in the current tool magazine and the tool master magazine, and determine whether the total number of tools meets the tool consumption quantity.

[0026] If yes, it is determined whether the tool magazine of each CNC machine tool meets the tool consumption component of the production plan. If not, the robot is called to replenish the tool magazine of the CNC machine tool from the tool general library. The order of the robot replenishing the tool magazine tools is determined according to the service life of the tool of each CNC machine tool and the number of tool consumption components that are not met.

[0027] If not, the downtime of the CNC machine tool is predicted according to the production plan, the force data of each tool bar, the operation data of each CNC machine tool, the reflectivity of the machining surface and the corresponding relationship, and a tool replenishment list is generated according to the downtime and the number of tool consumption, and the tool replenishment list is output in the output module;

[0028] The control module is also used to determine whether tool replenishment is performed in the production line at the deadline. If not, the production line is controlled to enter an adjustment mode. The adjustment mode is: for a target CNC machine tool, when the tool magazine of the target CNC machine tool and the target model tools of the total tool magazine cannot meet the tool consumption of the target CNC machine tool, the robot calls the target model tools with excess tool consumption in the tool magazines of the remaining CNC machine tools and installs them in the tool magazines of the target CNC machine tool. The remaining CNC machine tools are CNC machine tools other than the target CNC machine tool in the production line. The deadline plus the time used for tool replenishment and the time used by the robot to replenish the tools in the tool magazine are earlier than the downtime.

[0029] The present invention also provides a numerically controlled machine tool, comprising the tool magazine door structure as described above.

[0030] The present invention also provides an intelligent tool changing method, which utilizes the tool magazine door structure as described above to change tools.

[0031] Based on the common sense in the art, the above-mentioned preferred conditions can be combined arbitrarily to obtain the preferred embodiments of the present invention.

[0032] The positive and progressive effects of the present invention are:

[0033] The present invention can improve the tool changing efficiency, has good sealing performance and high safety, increases the service life of the equipment, and effectively improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a cross-sectional schematic diagram of the tool magazine door structure of embodiment 1 of the present invention.

[0035] Figure 2 Another structural schematic diagram of the tool magazine door structure of embodiment 1 of the present invention.

[0036] Figure 3 Another structural schematic diagram of the tool magazine door structure of embodiment 1 of the present invention.

[0037] Figure 4 Another structural schematic diagram of the tool magazine door structure of embodiment 1 of the present invention.

[0038] Figure 5 Another structural schematic diagram of the tool magazine door structure of embodiment 1 of the present invention.

[0039] Figure 6 It is a cross-sectional schematic diagram of the tool magazine door structure of embodiment 1 of the present invention.

[0040] Figure 7 Another cross-sectional schematic diagram of the intelligent tool changing method according to embodiment 1 of the present invention. DETAILED DESCRIPTION

[0041] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0042] Example 1

[0043] In this embodiment, the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] See also Figures 1 to 6This embodiment provides a production line, which includes a plurality of CNC machine tools, a robot and a tool library, and the CNC machine tool includes a tool library.

[0045] The tool magazine includes a tool magazine door structure, and the tool magazine door structure includes a protective cover body 11 and a tool magazine door body 12 .

[0046] A triangular prism-shaped sinking groove 13 is disposed on the top surface of the protective cover body, and the bottom surface 131 of the sinking groove is the top surface of the protective cover body.

[0047] A tool magazine door through hole 14 is formed on the bottom surface of the sink, and the tool magazine door body 12 is arranged above the tool magazine door through hole;

[0048] The triangular prism-shaped sink groove defines the orientation of the tool magazine door body. Due to the orientation of the door body, splashing cutting fluid and chips are less likely to contact the tool magazine door, and chips are less likely to get stuck, thereby increasing the sealing, stability and durability in disguised form.

[0049] A guide rail 20 and a cylinder 22 are installed on the side surface 132 of the trough 13 which is perpendicular to the horizontal plane. One end of the tool magazine door body is installed in the guide rail 20. The cylinder is fixed to the tool magazine door body. When the piston of the cylinder is extended, it pushes the tool magazine door body to move along the guide rail to cover the tool magazine door through hole. When the piston of the cylinder is retracted, it drives the tool magazine door body to move along the guide rail to open the tool magazine door through hole. The side surface is the side surface of a triangular prism.

[0050] A manipulator 15 for taking out a tool is provided above the sink, and the manipulator 15 clamps one end of the tool above the through hole of the tool magazine door to pass the tool 16 through the through hole of the tool magazine door;

[0051] A mechanical arm 17 is provided below the top surface of the protective cover body. The mechanical arm 17 clamps one end of the tool when the tool passes through the through hole of the tool magazine door. The mechanical arm is used to transfer the tool to the spindle 28 of the CNC machine tool.

[0052] The robot grips the same end of the tool as the robot arm.

[0053] The robot arm 15 includes a turntable 151 and a protective fence 152 .

[0054] The plane where the turntable is located is parallel to the side of the trough. A number of fixing parts 18 are evenly arranged on the circumference of the turntable. The fixing part is used to fix one end of the tool. One end of the fixing part is connected to the turntable through a rotating device. The protective fence is provided with a protective fence through hole 153 at a position corresponding to the through hole of the tool magazine door.

[0055] The rotating device drives the fixing member to swing so that the other end of the fixing member passes through the protective fence through hole, and the distance from the protective fence through hole to the tool magazine door through hole is less than the length of the fixing member.

[0056] This embodiment uses a fixing piece to clamp the tool, and uses the fixing piece to pass the tool through the protective fence hole and the tool magazine door hole, so that the robot body does not need to pass through the tool magazine door, so that the turntable can be used to replace the previous complex robot structure.

[0057] The tool magazine door body 12 includes a first door panel 121 and a second door panel 122 , and the included angle between the first door panel and the second door panel is an obtuse angle.

[0058] The first door panel is disposed above the bottom surface 131 of the sink and is parallel to the bottom surface of the sink, and the second door panel is disposed above the upper end surface of the protective cover body and is parallel to the upper end surface.

[0059] Sealing strips are arranged on the upper edge, the lower edge and the side edge close to the through hole of the tool magazine door body, and the sealing strip on the side edge close to the through hole of the tool magazine door is a self-clamping sealing strip.

[0060] The upper end surface of the protective cover body is provided with a mechanical arm installation area 26 , and the mechanical arm 17 is fixed below the installation area 26 via a rotating shaft 27 .

[0061] The axis of the rotating shaft is perpendicular to the upper end surface. Both ends of the mechanical arm each include a clamping member, and the clamping member clamps the tool on the mechanical arm when in the clamping position.

[0062] In the clamping position, the clamping member is located in the area of ​​the tool magazine door through hole covered by the second door panel. After clamping the tool, the clamping member rotates 180 degrees to allow the spindle 28 to install the tool on the clamping member.

[0063] The door body of the tool magazine is connected to the guide rail 20 via a connecting piece 19 , and the piston of the cylinder is connected to the connecting piece via a transmission piece 21 .

[0064] A sensing bracket 25 is disposed on the top of the transmission member, and two positioning sensors 24 are disposed on the side of the sink. When the tool magazine door is closed, the sensing bracket 25 corresponds to a position of a positioning sensor 24.

[0065] When the tool magazine door is opened to the maximum, the sensing bracket corresponds to the position of another positioning sensor, and the positioning sensor sends a sensing signal to the control module of the CNC machine tool when the positioning sensor corresponds to the position of the sensing bracket.

[0066] An L-shaped cylinder mounting plate 135 is also provided on the side of the sink, and the guide rail and the cylinder are fixed to the side of the sink through the cylinder mounting plate. A clamp 23 for fixing the line is also provided above the cylinder mounting plate.

[0067] A wiring opening 133 for the line to pass through is provided on one side wall of the sink 13, and a cylinder shield 134 for protecting the cylinder is also fixed on the side of the sink. The side walls of the sink are the top and bottom surfaces of a triangular prism.

[0068] The sensing bracket is fixed to the outer end of the piston of the cylinder and is synchronized with the operation of the tool magazine door. When the machine tool is running, the positioning sensor will interact with the cylinder sensing bracket to determine the status and position of the tool magazine door and provide information feedback.

[0069] Due to the above advantages, the cylinder can be selected with a smaller output force, smaller size and cheaper model, which saves space and cost. The three sides of the tool magazine door are respectively provided with sealing strips and self-clamping sealing strips, which increase the sealing and reduce the noise. The cable of the positioning sensor is fixed by a clamp, and the cylinder input and output pipelines connecting the cylinder joint and the cable of the positioning sensor are gathered at the wiring port. The cylinder guard effectively prevents dust from entering the equipment. A water leakage mask is set at the side leakage port to effectively prevent the internal cutting fluid from splashing out.

[0070] The tool bar of the tool is provided with a piezoelectric sensor, which is used to collect the force data of the tool bar and transmit it to the control module of the CNC machine tool, and the control module is used to collect the operation data of the CNC machine tool.

[0071] The control module is also used to obtain the service life of the tool on the spindle 28 according to the force data, the operation data and the corresponding relationship, wherein the corresponding relationship is the corresponding relationship between the force data, the operation data and the service life of the tool obtained by using an artificial intelligence algorithm;

[0072] The control module is also used to determine whether the remaining time of the tool on the spindle is less than a preset time based on the service life. If so, the tool magazine is notified to search for a spare tool of the same model as the tool on the spindle, and move the fixing of the spare tool to the position of the through hole in the protective fence. The preset time is greater than the time taken by the tool magazine to move the spare tool to the position of the through hole in the protective fence.

[0073] Specifically, each CNC machine tool includes a three-dimensional scanner, the scanning range of which includes the spindle of the CNC machine tool and the workpiece processing area, and the three-dimensional scanner is used to scan the reflectivity of the processing surface of the workpiece.

[0074] The control module is used to predict the number of tool consumption according to the production plan, the force data of each tool bar, the operation data of each CNC machine tool, the reflectivity of the machining surface and the corresponding relationship, wherein the control module adjusts the operation data of the CNC machine tool according to the reflectivity of the machining surface, and the number of tool consumption includes the tool consumption component of each CNC machine tool;

[0075] The control module is used to obtain the total number of tools in the current tool magazine and the tool master magazine, and determine whether the total number of tools meets the tool consumption quantity.

[0076] If yes, it is determined whether the tool magazine of each CNC machine tool meets the tool consumption component of the production plan. If not, the robot is called to replenish the tool magazine of the CNC machine tool from the tool general library. The order of the robot replenishing the tool magazine tools is determined according to the service life of the tool of each CNC machine tool and the number of tool consumption components that are not met.

[0077] If not, the downtime of the CNC machine tool is predicted according to the production plan, the force data of each tool bar, the operation data of each CNC machine tool, the reflectivity of the machining surface and the corresponding relationship, and a tool replenishment list is generated according to the downtime and the number of tool consumption, and the tool replenishment list is output in the output module;

[0078] The control module is also used to determine whether tool replenishment is performed in the production line at the deadline. If not, the production line is controlled to enter an adjustment mode. The adjustment mode is: for a target CNC machine tool, when the tool magazine of the target CNC machine tool and the target model tools of the total tool magazine cannot meet the tool consumption of the target CNC machine tool, the robot calls the target model tools with excess tool consumption in the tool magazines of the remaining CNC machine tools and installs them in the tool magazines of the target CNC machine tool. The remaining CNC machine tools are CNC machine tools other than the target CNC machine tool in the production line. The deadline plus the time used for tool replenishment and the time used by the robot to replenish the tools in the tool magazine are earlier than the downtime.

[0079] See also Figure 7 , using the above production line, this embodiment provides an intelligent tool changing method, including:

[0080] Step 100: The piezoelectric sensor collects the force data of the tool bar and transmits it to the control module of the CNC machine tool. The control module collects the operation data of the CNC machine tool.

[0081] Step 101, the control module obtains the service life of the tool on the spindle according to the force data, the operation data and the corresponding relationship, wherein the corresponding relationship is the corresponding relationship between the force data, the operation data and the service life of the tool obtained by using an artificial intelligence algorithm;

[0082] Step 102, the control module is also used to determine whether the remaining time of the tool on the spindle is less than a preset time according to the service life, if so, execute step 103, if not, execute step 102 again.

[0083] Step 103, notify the tool magazine to search for a spare tool of the same model as the tool on the spindle, and move the fixing part of the spare tool to the position of the through hole of the protective fence, and the preset time is greater than the time taken by the tool magazine to move the spare tool to the position of the through hole of the protective fence.

[0084] Furthermore, the CNC machine tool is used in a production line, the production line includes a plurality of the CNC machine tools, a robot and a tool library, each CNC machine tool includes a three-dimensional scanner, the scanning range of the three-dimensional scanner includes the spindle of the CNC machine tool and the workpiece processing area, the three-dimensional scanner is used to scan the reflectivity of the processing surface of the workpiece, and the intelligent tool changing method includes:

[0085] The control module predicts the tool consumption quantity based on the production plan, the force data of each tool bar, the operation data of each CNC machine tool, the reflectivity of the machining surface and the corresponding relationship, wherein the control module adjusts the operation data of the CNC machine tool based on the reflectivity of the machining surface, and the tool consumption quantity includes the tool consumption component of each CNC machine tool.

[0086] The control module obtains the total number of tools in the current tool magazine and the tool master magazine, and determines whether the total number of tools meets the tool consumption quantity.

[0087] If yes, it is determined whether the tool magazine of each CNC machine tool meets the tool consumption component of the production plan. If not, the robot is called to replenish the tool magazine of the CNC machine tool from the tool general library. The order of the robot replenishing the tool magazine tools is determined according to the service life of the tool of each CNC machine tool and the number of tool consumption components that are not met.

[0088] Otherwise, the downtime of the CNC machine tool is predicted according to the production plan, the force data of each tool rod, the operation data of each CNC machine tool, the reflectivity of the machining surface and the corresponding relationship, and a tool replenishment list is generated according to the downtime and the number of tool consumption and output in the output module.

[0089] The control module is also used to determine whether tool replenishment is performed in the production line at the deadline. If not, the production line is controlled to enter an adjustment mode. The adjustment mode is: for a target CNC machine tool, when the tool magazine of the target CNC machine tool and the target model tools of the total tool magazine cannot meet the tool consumption of the target CNC machine tool, the robot calls the target model tools with excess tool consumption in the tool magazines of the remaining CNC machine tools and installs them in the tool magazines of the target CNC machine tool. The remaining CNC machine tools are CNC machine tools other than the target CNC machine tool in the production line. The deadline plus the time used for tool replenishment and the time used by the robot to replenish the tools in the tool magazine are earlier than the downtime.

[0090] This embodiment can improve the tool changing efficiency, has good sealing and high safety, increases the service life of the equipment, and effectively improves production efficiency.

[0091] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A tool magazine door structure for a tool magazine of a CNC machine tool, characterized in that: The tool magazine door structure includes a protective cover body and a tool magazine door body. The top surface of the protective cover body is provided with a triangular prism-shaped sinking groove, and the bottom surface of the sinking groove is the top surface of the protective cover body; A tool magazine door through hole is provided on the bottom surface of the sink, and the tool magazine door body is arranged above the tool magazine door through hole; A guide rail and a cylinder are installed on the side of the sink that is perpendicular to the horizontal plane. One end of the tool magazine door body is installed in the guide rail. The cylinder is fixed to the tool magazine door body. When the piston of the cylinder is extended, it pushes the tool magazine door body to move along the guide rail to cover the tool magazine door through hole. When the piston of the cylinder is retracted, it drives the tool magazine door body to move along the guide rail to open the tool magazine door through hole. The side surface is the side surface of a triangular prism. A manipulator for taking out a tool is provided above the sink, and the manipulator clamps one end of the tool above the through hole of the tool magazine door to pass the tool through the through hole of the tool magazine door; A mechanical arm is provided below the top surface of the protective cover body, and the mechanical arm clamps one end of the tool when the tool passes through the through hole of the tool magazine door, and the mechanical arm is used to transfer the tool to the spindle of the CNC machine tool; Wherein, the manipulator includes a turntable and a protective fence, the plane where the turntable is located is parallel to the side of the sink, a plurality of fixing parts are evenly arranged on the circumference of the turntable, the fixing part is used to fix one end of the tool, one end of the fixing part is connected to the turntable through a rotating device, the protective fence is provided with a protective fence through hole at a position corresponding to the through hole of the tool magazine door, the rotating device drives the fixing part to swing so that the other end of the fixing part passes through the protective fence through hole, and the distance from the protective fence through hole to the tool magazine door through hole is less than the length of the fixing part; The tool magazine door body comprises a first door panel and a second door panel, the angle between the first door panel and the second door panel is an obtuse angle, the first door panel is arranged above the bottom surface of the sink groove and is parallel to the bottom surface of the sink groove, the second door panel is arranged above the upper end surface of the protective cover body and is parallel to the upper end surface, the upper edge, the lower edge and the side edge close to the tool magazine door through hole of the tool magazine door body are provided with sealing strips, and the sealing strip on the side edge close to the tool magazine door through hole is a self-clamping sealing strip; The tool bar of the tool is provided with a piezoelectric sensor, which is used to collect the force data of the tool bar and transmit it to the control module of the CNC machine tool, and the control module is used to collect the operation data of the CNC machine tool. The control module is also used to obtain the service life of the tool on the spindle according to the force data, the operation data and the corresponding relationship, wherein the corresponding relationship is the corresponding relationship between the force data, the operation data and the service life of the tool obtained by using an artificial intelligence algorithm; The control module is also used to determine whether the remaining time of the tool on the spindle is less than a preset time based on the service life. If so, the tool magazine is notified to search for a spare tool of the same model as the tool on the spindle, and move the fixing of the spare tool to the position of the through hole in the protective fence. The preset time is greater than the time taken by the tool magazine to move the spare tool to the position of the through hole in the protective fence.

2. The tool magazine door structure according to claim 1, characterized in that: The upper end surface of the protective cover body is provided with a robot arm installation area, and the robot arm is fixed below the installation area through a rotating shaft, and the axis of the rotating shaft is perpendicular to the upper end surface. The two ends of the robot arm each include a clamping member, and the clamping member clamps the tool on the robot arm when it is in the clamping position. When in the clamping position, the clamping member is located in the area of ​​the tool magazine door through hole covered by the second door panel. After clamping the tool, the clamping member rotates 180 degrees for the spindle to install the tool on the clamping member.

3. The tool magazine door structure according to claim 1, characterized in that: The tool magazine door body is connected to the guide rail through a connecting piece, the piston of the cylinder is connected to the connecting piece through a transmission piece, a sensing bracket is provided on the top of the transmission piece, and two positioning sensors are also provided on the side of the sink. When the tool magazine door body is closed, the sensing bracket corresponds to the position of one positioning sensor, and when the tool magazine door body is opened to the maximum, the sensing bracket corresponds to the position of another positioning sensor. When the positioning sensor corresponds to the position of the sensing bracket, it sends a sensing signal to the control module of the CNC machine tool.

4. The tool magazine door structure according to claim 3, characterized in that: An L-shaped cylinder mounting plate is also provided on the side of the trough, and the guide rail and the cylinder are fixed to the side of the trough through the cylinder mounting plate. A clamp for fixing the line is also provided above the cylinder mounting plate. A wiring opening for the line to pass through is provided on one side wall of the trough. A cylinder guard for protecting the cylinder is also fixed on the side of the trough. The side walls of the trough are the top and bottom surfaces of a triangular prism.

5. The tool magazine door structure according to claim 1, characterized in that: The CNC machine tool is used in a production line, which includes a plurality of the CNC machine tools, a robot and a tool library. Each CNC machine tool includes a three-dimensional scanner. The scanning range of the three-dimensional scanner includes the spindle of the CNC machine tool and the workpiece processing area. The three-dimensional scanner is used to scan the reflectivity of the processing surface of the workpiece. The control module is used to predict the number of tool consumption according to the production plan, the force data of each tool bar, the operation data of each CNC machine tool, the reflectivity of the machining surface and the corresponding relationship, wherein the control module adjusts the operation data of the CNC machine tool according to the reflectivity of the machining surface, and the number of tool consumption includes the tool consumption component of each CNC machine tool; The control module is used to obtain the total number of tools in the current tool magazine and the tool master magazine, and determine whether the total number of tools meets the tool consumption quantity. If yes, it is determined whether the tool magazine of each CNC machine tool meets the tool consumption component of the production plan. If not, the robot is called to replenish the tool magazine of the CNC machine tool from the tool general library. The order of the robot replenishing the tool magazine tools is determined according to the service life of the tool of each CNC machine tool and the number of tool consumption components that are not met. If not, the downtime of the CNC machine tool is predicted according to the production plan, the force data of each tool bar, the operation data of each CNC machine tool, the reflectivity of the machining surface and the corresponding relationship, and a tool replenishment list is generated according to the downtime and the number of tool consumption, and the tool replenishment list is output in the output module; The control module is also used to determine whether tool replenishment is performed in the production line at the deadline. If not, the production line is controlled to enter an adjustment mode. The adjustment mode is: for a target CNC machine tool, when the tool magazine of the target CNC machine tool and the target model tools of the total tool magazine cannot meet the tool consumption of the target CNC machine tool, the robot calls the target model tools with excess tool consumption in the tool magazines of the remaining CNC machine tools and installs them in the tool magazines of the target CNC machine tool. The remaining CNC machine tools are CNC machine tools other than the target CNC machine tool in the production line. The deadline plus the time used for tool replenishment and the time used by the robot to replenish the tools in the tool magazine are earlier than the downtime.

6. A CNC machine tool, characterized in that: The CNC machine tool comprises the tool magazine door structure according to any one of claims 1 to 5.

7. An intelligent tool changing method, characterized in that: The intelligent tool changing method utilizes the tool magazine door structure as described in any one of claims 1 to 5 to change the tool.

Images