A CNC machining machine tool with intelligent tool head switching

Abstract

The present invention discloses a CNC machining machine with intelligent tool head switching, which relates to the technical field of CNC machining machine tools, including a machine body, a feed body, an adaptive tool change assembly and a tool change lubrication assembly, wherein the feed body is fixedly mounted on the side of the outer wall of the machine body, an operating box is movably mounted on the top of the outer wall of the feed body, an adaptive tool change assembly and a tool change lubrication assembly are fixedly mounted on the side of the outer wall of the operating box, and the tool change lubrication assembly is used to lubricate the tool locked by the adaptive tool change assembly. The present invention realizes the adaptive locking and limiting function of the tool by installing the adaptive tool change assembly and the mechanical locking assembly, and at the same time realizes the automatic locking and retracting function of the tool, solves the problem of tool deviation and retraction during machining caused by the failure to lock the tool after replacement, and improves the efficiency and stability of tool replacement.

Description

Technical Field

[0001] The invention relates to the technical field of CNC machining machines, in particular to a CNC machining machine with an intelligently switchable tool head. Background Art

[0002] Existing CNC machining machines usually need to manually change different types of tools during the machining process to meet different machining requirements. However, the manual tool change process is cumbersome, inefficient, and requires a high level of technical skills from the operator. In addition, although traditional automatic tool change machines have achieved automation of tool change, they lack intelligent judgment in the matching and switching process of different tool heads, resulting in the inability to effectively improve the accuracy and efficiency of tool change operations. Therefore, it is of great significance to develop a CNC machining machine with the function of automatic identification and intelligent tool head switching.

[0003] 1. Patent document CN115488677B discloses a machining center with a disc tool magazine. The above patent realizes that through the tool changing mechanism, the required machining tool and the tool to be changed can be quickly driven to switch, the tool switching and installation are completed, and the tool changing efficiency is improved. However, the above patent cannot realize the adaptive locking limit function of the tool.

[0004] 2. Patent document CN111300110B discloses a combined tool magazine of straight row and row drilling and a tool changing method thereof. The above patent saves tool changing time and improves production and processing efficiency, but the above patent cannot realize the function of automatically matching tool changing with the processed material.

[0005] 3. Patent document CN113042794B discloses a milling cutter shoe last processing device and a shoe last processing method. The above patent realizes the switching of the milling cutter cutting angle, and only adds a vertical displacement device to form a four-axis linkage machine tool, which solves the problems of high production cost, low product quality, and inability to directly obtain headless and tailless shoe lasts through a single device. However, the above patent cannot realize the positioning adjustment function of tool changing.

[0006] 4. Patent document CN115815677B discloses a multi-angle milling head for a machine tool machining center. The above patent uses centrifugal force as the main internal force to provide a stable external force to the spindle assembly and the tool body, avoiding the problem of aggravating the wear of the tool body due to the external force generated when the tool rotates and switches the feed angle, so that the tool body and the spindle assembly are in a relatively stable state when in operation. In the process of loading and unloading the chuck sleeve, a step-by-step tool unloading method is adopted to avoid the problem of the tool hitting the workpiece to be processed due to the direct detachment of the chuck sleeve during the tool removal process. However, the above patent cannot achieve the lubrication and cooling function of the tool.

[0007] In summary, the above patents cannot realize the adaptive locking and limiting function of the tool, the automatic matching tool change function of the processed material, the alignment adjustment function of the tool change and the lubrication and cooling function of the tool, resulting in the problems of low efficiency, poor stability, large error and reduced tool life of manual tool change;

[0008] To this end, the present application proposes a CNC machining machine tool with an intelligent switching tool head that can realize the adaptive locking and limiting function of the tool, the automatic tool change function that matches the processed material, the alignment adjustment function of the tool change, and the lubrication and cooling function of the tool. Summary of the invention

[0009] The purpose of the present invention is to provide a CNC machining machine with an intelligent switching tool head to solve the technical problems proposed in the above background technology that the adaptive locking and limiting function of the tool, the automatic matching tool changing function of the processed material, the positioning adjustment function of the tool changing and the lubrication and cooling function of the tool cannot be realized, resulting in low manual tool changing efficiency, poor stability, large errors and reduced tool life.

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a CNC machining tool with intelligent tool head switching, comprising a machine tool body, a feed body, an adaptive tool changing assembly and a tool changing lubrication assembly, wherein the feed body is fixedly mounted on the side of the outer wall of the machine tool body, an operating box is movably mounted on the top of the outer wall of the feed body, an adaptive tool changing assembly and a tool changing lubrication assembly are fixedly mounted on the side of the outer wall of the operating box, and the tool changing lubrication assembly is used to lubricate the tool locked by the adaptive tool changing assembly;

[0011] A fixed cylinder is fixedly installed on the side of the outer wall of the operation box, a tool changing connection seat is fixedly installed on the side of the outer wall of the fixed cylinder, and an adaptive tool changing assembly is movably installed in the tool changing connection seat, and the adaptive tool changing assembly includes: a fixed rod, a self-locking spring and a pin head;

[0012] A tool changing cavity is provided inside the tool changing connecting seat, four fixing rods are symmetrically installed on the inner wall of the tool changing connecting seat, a pin head is fixedly installed on the head of the outer wall of the fixing rod, and the pin head is limitedly clamped in the limiting groove of the inner wall of the tool changing connecting seat, the outer wall of the fixing rod is surrounded by a self-locking spring, a tool changing lubrication assembly is fixedly installed on the outer wall of the fixing cylinder, and the pin head is designed to be a curved shape with a short left and a long right.

[0013] Preferably, the tool change lubrication assembly is used to lubricate and cool the replaced tool;

[0014] Connecting pipes are installed on the top and bottom of the outer wall of the fixed cylinder. The connecting pipes are connected to the external coolant and lubricating liquid pumps through rubber tubes. An electric control valve is fixedly installed on the inner wall of the connecting pipe. Spray holes are opened on the top and bottom inner walls of the outer wall of the fixed cylinder.

[0015] Preferably, a mechanical locking assembly is fixedly installed in the operation box, and the mechanical locking assembly is used to cooperate with the adaptive tool changing assembly to fix the tool;

[0016] A first servo ejector is fixedly installed on the side of the inner wall of the operation box, a first telescopic rod is fixedly installed on the output end of the side of the outer wall of the first servo ejector, and a top plate is fixedly installed on the front of the outer wall of the first telescopic rod.

[0017] Preferably, a feeding assembly is fixedly installed on the front of the inner wall of the feeding compartment, and the feeding assembly is used to adjust the tool processing position and depth;

[0018] The feeding assembly includes: a second servo micro motor, a ball screw and a moving seat;

[0019] A second servo micromotor is fixedly installed on the front inner wall of the feed compartment, a second rotating shaft is fixedly installed on the output end of the back outer wall of the second servo micromotor, a ball screw is fixedly installed on the back outer wall of the second rotating shaft, two limit rods are fixedly installed on the front inner wall of the feed compartment, a moving seat is movably installed on the outer wall of the ball screw, a limit sleeve is fixedly installed on the side of the outer wall of the moving seat, and the limit sleeve is movably sleeved on the outer wall of the limit rod, a connecting rod is fixedly installed on the top of the outer wall of the moving seat, and the top of the outer wall of the connecting rod is fixedly connected to the operating box.

[0020] Preferably, a positioning component is fixedly installed on the side of the inner wall of the operation box, and the positioning component is used for tool change positioning to ensure that the tool is installed in place;

[0021] The alignment component includes: an air compression cylinder, a sliding track and an alignment seat;

[0022] An air compression cylinder is fixedly installed on the inner wall side of the operation box, a hydraulic push rod is fixedly installed on the output port on the outer wall side of the air compression cylinder, a positioning seat is fixedly connected to the outer wall side of the hydraulic push rod, a sliding track is fixedly installed on the inner wall side of the operation box, and the positioning seat is movably mounted on the outer wall of the sliding track, and a fixing cylinder is fixedly installed on the outer wall side of the positioning seat.

[0023] Preferably, a circulation box is fixedly installed on the outer wall side of the machine tool body, a tool changing box is fixedly installed on the top of the outer wall of the circulation box, and a tool circulation assembly is fixedly installed on the inner wall side of the circulation box, and the tool circulation assembly is used to perform tool circulation replacement according to processing requirements;

[0024] The tool circulation assembly includes: a third servo micro motor, a belt loop and a tool holder;

[0025] A third servo micromotor is fixedly installed on the side of the inner wall of the circulation box, a third rotating shaft is fixedly installed on the output end of the side of the outer wall of the third servo micromotor, a first circulation wheel is fixedly installed on the outer wall of the third rotating shaft, a movable rod is fixedly installed on the side of the inner wall of the circulation box, a second circulation wheel is fixedly installed on the outer wall of the movable rod, and the outer walls of the first circulation wheel and the second circulation wheel are surrounded by belt rings, a number of tool holders are fixedly installed on the side of the outer wall of the belt ring, a tool head is movably mounted on the outer wall of the tool holder, a positioning hole is opened on the outer wall of the tool head, and the positioning hole and the pin head cooperate with each other.

[0026] Preferably, a tool changing channel is provided on the inner wall of the tool changing box, and an automatic tool changing assembly is fixedly installed on the side of the inner wall of the tool changing box;

[0027] The automatic tool changing assembly includes: a hydraulic ejector, an ejector rod and a positioning cylinder;

[0028] A hydraulic ejector is fixedly installed on the inner wall side of the tool changing box, an ejector rod is fixedly installed on the output end of the outer wall side of the hydraulic ejector, a positioning cylinder is fixedly installed on the outer wall side of the tool changing box, a telescopic cylinder is movably installed on the outer wall side of the positioning cylinder, and the telescopic cylinder cooperates with the tool changing cavity in the tool changing connecting seat.

[0029] Preferably, a positioning height adjustment component is fixedly installed at the bottom of the inner wall of the machine tool body, and the positioning height adjustment component is used to cooperate with the automatic tool changing component to perform tool changing operation;

[0030] The alignment height adjustment assembly includes: a spiral lift, a spiral lift rod and a bracket;

[0031] A spiral lift is fixedly installed at the bottom of the inner wall of the machine box, a spiral lift rod is movably installed at the output end of the top outer wall of the spiral lift, and a bracket is fixedly installed at the top outer wall of the spiral lift rod, and the bracket is used to support the telescopic cylinder.

[0032] Preferably, a support leg is fixedly installed on the bottom of the outer wall of the machine tool body, a fixed box is fixedly installed on the back of the outer wall of the machine tool body, a chuck is fixedly installed on the front of the outer wall of the fixed box through the output shaft of the rotating machine, and a clamping claw is fixedly installed on the side of the outer wall of the chuck.

[0033] Preferably, an infrared alignment sensor is fixedly installed on the front side of the outer wall of the fixed box, the infrared alignment sensor is connected to the PLC control system of the CNC machine tool through a data line, and the PLC control system is connected to the processor of the CNC machine tool through a signal line.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1. The present invention realizes the adaptive locking and limiting function of the tool by installing an adaptive tool changing assembly and a mechanical locking assembly, and realizes the automatic locking and retracting function of the tool, thereby solving the problem of tool deviation and retraction during machining caused by the failure to lock the tool after replacement, and improving the efficiency and stability of tool replacement;

[0036] 2. The present invention realizes the function of automatically matching tool change with the processed material by installing an automatic tool change component and a tool circulation component, solves the uncertainty problem of manual tool selection, improves tool change accuracy, and improves processing efficiency;

[0037] 3. The present invention realizes the alignment adjustment function of tool change by installing an alignment component and an alignment height adjustment component, solves the problem of angle deviation in manual tool change, improves tool change efficiency, and ensures tool use stability;

[0038] 4. The present invention realizes the lubrication and cooling function of the tool by installing a tool changing lubrication component, solves the thermal stress problem in the tool processing process, and improves the safety and service life of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a front view structural schematic diagram of the present invention;

[0040] Figure 2 It is a schematic diagram of the front structure of the present invention;

[0041] Figure 3 It is a partial structural schematic diagram of the adaptive tool changing assembly of the present invention;

[0042] Figure 4 It is a partial structural schematic diagram of the feeding assembly of the present invention;

[0043] Figure 5 It is a partial structural schematic diagram of the alignment component of the present invention;

[0044] Figure 6 It is a partial structural schematic diagram of the automatic tool changing assembly of the present invention;

[0045] Figure 7 It is a schematic diagram of the structure of a part of the tool circulation component of the present invention;

[0046] Figure 8 It is a partial structural schematic diagram of the alignment height adjustment component of the present invention.

[0047] In the figure: 1. Machine body; 2. Support legs; 3. Feed body; 4. Circulation box; 5. Operation box; 6. Tool change box; 7. Fixed box; 8. Connecting pipe; 9. Infrared alignment sensor; 10. Chuck; 11. Alignment seat; 12. Fixed cylinder; 13. Tool change connecting seat; 14. Telescopic cylinder; 15. First servo ejector; 16. First telescopic rod; 17. Top plate; 18. Spray hole; 19. Electric control valve; 20. Tool change chamber; 21. Fixed rod; 22. Self-locking spring; 23. Pin head; 24. Second servo micromotor; 25. Second rotating shaft; 26. Ball screw; 27, moving seat; 28, limit rod; 29, limit sleeve; 30, connecting rod; 31, sliding track; 32, air compression cylinder; 33, hydraulic push rod; 34, hydraulic ejector; 35, tool holder; 36, tool head; 37, tool changing channel; 38, positioning hole; 39, positioning cylinder; 40, clamping claw; 41, belt loop; 42, third servo micromotor; 43, third rotating shaft; 44, first circulating wheel; 45, movable rod; 46, second circulating wheel; 47, spiral lift; 48, spiral lift rod; 49, bracket; 50, ejector rod. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0049] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] See also Figure 1 , Figure 2 , Figure 3 and Figure 7 , an embodiment provided by the present invention: a CNC machining tool with intelligent tool head switching, comprising a machine tool body 1, a feed body 3, an adaptive tool changing assembly and a tool changing lubrication assembly, wherein the feed body 3 is fixedly mounted on the side of the outer wall of the machine tool body 1, an operation box 5 is movably mounted on the top of the outer wall of the feed body 3, an adaptive tool changing assembly and a tool changing lubrication assembly are fixedly mounted on the side of the outer wall of the operation box 5, and the tool changing lubrication assembly is used to lubricate the tool locked by the adaptive tool changing assembly;

[0052] The outer wall side of the operation box 5 is fixedly mounted with a fixed cylinder 12, the outer wall side of the fixed cylinder 12 is fixedly mounted with a tool change connection seat 13, and the tool change connection seat 13 is movably mounted with an adaptive tool change assembly, and the adaptive tool change assembly includes: a fixed rod 21, a self-locking spring 22 and a pin head 23;

[0053] A tool changing cavity 20 is provided inside the tool changing connection seat 13, four fixing rods 21 are symmetrically installed on the inner wall of the tool changing connection seat 13, a pin head 23 is fixedly installed on the head of the outer wall of the fixing rod 21, and the pin head 23 is limitedly engaged in the limit groove of the inner wall of the tool changing connection seat 13, the outer wall of the fixing rod 21 is surrounded by a self-locking spring 22, and a tool changing lubrication assembly is fixedly installed on the outer wall of the fixing cylinder 12, and the pin head 23 is designed to be a left short and right long curve shape;

[0054] A mechanical locking assembly is fixedly installed in the operation box 5, and the mechanical locking assembly is used to cooperate with the adaptive tool changing assembly to fix the tool;

[0055] A first servo ejector 15 is fixedly mounted on the inner wall side of the operation box 5, a first telescopic rod 16 is fixedly mounted on the output end of the outer wall side of the first servo ejector 15, and a top plate 17 is fixedly mounted on the front of the outer wall of the first telescopic rod 16;

[0056] The outer wall side of the machine tool body 1 is fixedly mounted with a circulation box 4, the outer wall top of the circulation box 4 is fixedly mounted with a tool changing box 6, and the inner wall side of the circulation box 4 is fixedly mounted with a tool circulation assembly, which is used to perform tool circulation replacement according to processing requirements;

[0057] The tool circulation assembly includes: a third servo micro motor 42, a belt loop 41 and a tool holder 35;

[0058] A third servo micromotor 42 is fixedly mounted on the inner wall side of the circulation box 4, a third rotating shaft 43 is fixedly mounted on the output end of the outer wall side of the third servo micromotor 42, a first circulation wheel 44 is fixedly mounted on the outer wall of the third rotating shaft 43, a movable rod 45 is fixedly mounted on the inner wall side of the circulation box 4, a second circulation wheel 46 is fixedly mounted on the outer wall of the movable rod 45, and a belt ring 41 is sheathed around the outer walls of the first circulation wheel 44 and the second circulation wheel 46, a plurality of tool holders 35 are fixedly mounted on the outer wall side of the belt ring 41, a tool head 36 is movably mounted on the outer wall of the tool holder 35, a positioning hole 38 is formed on the outer wall of the tool head 36, and the positioning hole 38 cooperates with the pin head 23;

[0059] An infrared alignment sensor 9 is fixedly installed on the front of the outer wall of the fixed box 7. The infrared alignment sensor 9 is connected to the PLC control system of the CNC machine tool through a data line, and the PLC control system is connected to the processor of the CNC machine tool through a signal line;

[0060] Further, when the PLC control system sends a tool-changing signal to the third servo micromotor 42 according to the workpiece shape and material information collected by the infrared alignment sensor 9, the third servo micromotor 42 is started, the third servo micromotor 42 drives the third rotating shaft 43 to rotate, the third rotating shaft 43 drives the first circulating wheel 44 to rotate, the first circulating wheel 44 drives the second circulating wheel 46 to rotate on the movable rod 45 through the belt ring 41, when the belt ring 41 rotates, the belt ring 41 drives the tool head 36 to rotate through the tool holder 35, when the selected tool head 36 rotates into the tool-changing channel 37, the tool-changing operation is performed, when the replaced tool is inserted into the tool-changing cavity 20 and moves to the right, the tail of the tool lifts the pin head 23, and the pin head 23 squeezes the self-locking The spring 22 is compressed, and the pin head 23 moves on the fixing rod 21. When the tool continues to move to the right to the limit position, the self-locking spring 22 recovers from the compressed state, and the self-locking spring 22 pushes the pin head 23 to be inserted into the positioning hole 38 on the tool head 36 to limit and fix the tool head 36, thereby completing the adaptive installation of the tool. At the same time, the first servo ejector 15 is started after receiving the start signal of the PLC control system, and the first servo ejector 15 drives the first telescopic rod 16 to extend, and the first telescopic rod 16 limits and resists the tail of the tool head 36 through the top plate 17, ensuring that the tool head 36 will not move or retract when processing the workpiece, thereby realizing the adaptive limit and fixation of the tool, and completing the replacement locking function of the tool.

[0061] See also Figure 2 and Figure 3 , an embodiment provided by the present invention: a CNC machining machine tool with intelligent tool head switching, wherein the tool change lubrication assembly is used to lubricate and cool the replaced tool;

[0062] The top and bottom of the outer wall of the fixed cylinder 12 are both equipped with connecting pipes 8, which are connected to the external coolant and lubricant pumps through rubber tubes. An electric control valve 19 is fixedly installed on the inner wall of the connecting pipe 8, and the top and bottom inner walls of the outer wall of the fixed cylinder 12 are both equipped with spray holes 18;

[0063] An infrared alignment sensor 9 is fixedly installed on the front of the outer wall of the fixed box 7. The infrared alignment sensor 9 is connected to the PLC control system of the CNC machine tool through a data line, and the PLC control system is connected to the processor of the CNC machine tool through a signal line;

[0064] Furthermore, the connecting pipe 8 at the top of the fixed cylinder 12 receives lubricating fluid from an external lubricating fluid pump, and the electric control valve 19 opens after receiving an opening signal from the PLC control system. The lubricating fluid enters the fixed cylinder 12 through the connecting pipe 8 and the spray hole 18 to lubricate and cool the tool during processing, preventing thermal stress in the tool caused by the high temperature generated when the high-speed rotating workpiece contacts the tool, effectively preventing the tool from breaking when processing the workpiece, ensuring the safety of the machine and the operator, and increasing the service life of the equipment.

[0065] See also Figure 2 and Figure 4 , an embodiment provided by the present invention: a CNC machining machine tool with intelligent switching tool head, wherein a feed assembly is fixedly installed on the front of the inner wall of the feed compartment 3, and the feed assembly is used to adjust the tool processing position and depth;

[0066] The feeding assembly includes: a second servo micro motor 24, a ball screw 26 and a moving seat 27;

[0067] A second servo micromotor 24 is fixedly installed on the front of the inner wall of the feed compartment 3, a second rotating shaft 25 is fixedly installed on the output end of the back of the outer wall of the second servo micromotor 24, a ball screw 26 is fixedly installed on the back of the outer wall of the second rotating shaft 25, two limit rods 28 are fixedly installed on the front of the inner wall of the feed compartment 3, a moving seat 27 is movably installed on the outer wall of the ball screw 26, a limit sleeve 29 is fixedly installed on the side of the outer wall of the moving seat 27, and the limit sleeve 29 is movably sleeved on the outer wall of the limit rod 28, a connecting rod 30 is fixedly installed on the top of the outer wall of the moving seat 27, and the top of the outer wall of the connecting rod 30 is fixedly connected to the operation box 5;

[0068] An infrared alignment sensor 9 is fixedly installed on the front of the outer wall of the fixed box 7. The infrared alignment sensor 9 is connected to the PLC control system of the CNC machine tool through a data line, and the PLC control system is connected to the processor of the CNC machine tool through a signal line;

[0069] Further, when the tool change is completed and processing is carried out, the PLC control system sends a start signal to the second servo micromotor 24, the second servo micromotor 24 drives the second rotating shaft 25 to rotate, the second rotating shaft 25 drives the ball screw 26 to rotate, the ball screw 26 drives the moving seat 27 to move, the moving seat 27 drives the limit sleeve 29 to move on the limit rod 28, and the moving seat 27 drives the tool installed on the operating box 5 through the connecting rod 30 to adjust the processing depth and feed amount of the workpiece, thereby realizing the processing feed amount adjustment function and completing the processing operation on the workpiece.

[0070] See also Figure 5 and Figure 8 , an embodiment provided by the present invention: a CNC machining machine with intelligent tool head switching, wherein a positioning component is fixedly installed on the inner wall side of the operation box 5, and the positioning component is used for tool change positioning to ensure that the tool is installed in place;

[0071] The alignment component includes: an air compression cylinder 32, a sliding track 31 and an alignment seat 11;

[0072] An air compression cylinder 32 is fixedly installed on the inner wall side of the operation box 5, a hydraulic push rod 33 is fixedly installed on the output port on the outer wall side of the air compression cylinder 32, and a positioning seat 11 is fixedly connected to the outer wall side of the hydraulic push rod 33. A sliding track 31 is fixedly installed on the inner wall side of the operation box 5, and the positioning seat 11 is movably sleeved on the outer wall of the sliding track 31, and a fixing cylinder 12 is fixedly installed on the outer wall side of the positioning seat 11;

[0073] The bottom of the inner wall of the machine tool body 1 is fixedly installed with a positioning height adjustment component, which is used to cooperate with the automatic tool changing component to perform tool changing operations;

[0074] The alignment height adjustment assembly includes: a spiral lift 47, a spiral lift rod 48 and a bracket 49;

[0075] A screw lift 47 is fixedly installed at the bottom of the inner wall of the machine tool body 1, a screw lift rod 48 is movably installed at the output end of the top of the outer wall of the screw lift 47, and a bracket 49 is fixedly installed at the top of the outer wall of the screw lift rod 48, and the bracket 49 is used to support the telescopic cylinder 14;

[0076] The support legs 2 are fixedly installed at the bottom of the outer wall of the machine tool body 1, a fixed box 7 is fixedly installed on the back of the outer wall of the machine tool body 1, a chuck 10 is fixedly installed on the front of the outer wall of the fixed box 7 through the output shaft of the rotating machine, and a clamping claw 40 is fixedly installed on the side of the outer wall of the chuck 10;

[0077] An infrared alignment sensor 9 is fixedly installed on the front of the outer wall of the fixed box 7. The infrared alignment sensor 9 is connected to the PLC control system of the CNC machine tool through a data line, and the PLC control system is connected to the processor of the CNC machine tool through a signal line;

[0078] Furthermore, the support legs 2 play a role in supporting the machine tool body 1. The workpiece to be processed is mounted on the chuck 10, and the workpiece is clamped by the clamping claws 40. The infrared alignment sensor 9 collects the workpiece material information data in real time and transmits it to the PLC control system for tool matching analysis. The PLC control system controls tool change according to the workpiece material to be processed. At the same time, the infrared alignment sensor 9 collects the processing alignment data of the workpiece and the tool head in real time through infrared sensing technology, and transmits the tool head and processing position deviation data to the PLC control system for alignment deviation calculation. The PLC control system sends an alignment adjustment signal to the air compression cylinder 32 and the screw elevator 47. The screw elevator 47 is started, and the screw The lift 47 drives the spiral lift rod 48 to extend and retract, and the spiral lift rod 48 lifts the telescopic cylinder 14 through the bracket 49, changing the height of the telescopic cylinder 14 to ensure that the tool can be accurately installed in the tool changing connection seat 13 for tool changing and fixing; at the same time, the air compression cylinder 32 is started, and the air compression cylinder 32 drives the hydraulic push rod 33 to extend and retract, and the hydraulic push rod 33 drives the positioning seat 11 to move on the sliding track 31, and the positioning seat 11 drives the replaced tool fixedly installed in the fixed cylinder 12 to move and adjust the position, ensuring smooth tool replacement, realizing the adjustment function of tool change alignment, solving the problem of different tool lengths and different axis centerline heights, ensuring smooth tool replacement, and improving tool change processing efficiency.

[0079] See also Figure 6 and Figure 7 , an embodiment provided by the present invention: a CNC machining machine with intelligent tool head switching, wherein a circulation box 4 is fixedly installed on the outer wall side of the machine body 1, a tool changing box 6 is fixedly installed on the outer wall top of the circulation box 4, and a tool circulation assembly is fixedly installed on the inner wall side of the circulation box 4, and the tool circulation assembly is used to perform tool circulation replacement according to machining requirements;

[0080] The tool circulation assembly includes: a third servo micro motor 42, a belt loop 41 and a tool holder 35;

[0081] A third servo micromotor 42 is fixedly mounted on the inner wall side of the circulation box 4, a third rotating shaft 43 is fixedly mounted on the output end of the outer wall side of the third servo micromotor 42, a first circulation wheel 44 is fixedly mounted on the outer wall of the third rotating shaft 43, a movable rod 45 is fixedly mounted on the inner wall side of the circulation box 4, a second circulation wheel 46 is fixedly mounted on the outer wall of the movable rod 45, and a belt ring 41 is sheathed around the outer walls of the first circulation wheel 44 and the second circulation wheel 46, a plurality of tool holders 35 are fixedly mounted on the outer wall side of the belt ring 41, a tool head 36 is movably mounted on the outer wall of the tool holder 35, a positioning hole 38 is formed on the outer wall of the tool head 36, and the positioning hole 38 cooperates with the pin head 23;

[0082] The inner wall of the tool changing box 6 is provided with a tool changing channel 37, and an automatic tool changing assembly is fixedly installed on the side of the inner wall of the tool changing box 6;

[0083] The automatic tool changing assembly includes: a hydraulic ejector 34, an ejector rod 50 and a positioning cylinder 39;

[0084] A hydraulic ejector 34 is fixedly installed on the inner wall side of the tool change box 6, and an ejector rod 50 is fixedly installed on the output end of the outer wall side of the hydraulic ejector 34. A positioning cylinder 39 is fixedly installed on the outer wall side of the tool change box 6, and a telescopic cylinder 14 is movably installed on the outer wall side of the positioning cylinder 39, and the telescopic cylinder 14 cooperates with the tool change cavity 20 in the tool change connection seat 13;

[0085] The outer wall side of the operation box 5 is fixedly mounted with a fixed cylinder 12, the outer wall side of the fixed cylinder 12 is fixedly mounted with a tool change connection seat 13, and the tool change connection seat 13 is movably mounted with an adaptive tool change assembly, and the adaptive tool change assembly includes: a fixed rod 21, a self-locking spring 22 and a pin head 23;

[0086] A tool changing cavity 20 is provided inside the tool changing connection seat 13, four fixing rods 21 are symmetrically installed on the inner wall of the tool changing connection seat 13, a pin head 23 is fixedly installed on the head of the outer wall of the fixing rod 21, and the pin head 23 is limitedly engaged in the limit groove of the inner wall of the tool changing connection seat 13, the outer wall of the fixing rod 21 is surrounded by a self-locking spring 22, and a tool changing lubrication assembly is fixedly installed on the outer wall of the fixing cylinder 12, and the pin head 23 is designed to be a left short and right long curve shape;

[0087] A mechanical locking assembly is fixedly installed in the operation box 5, and the mechanical locking assembly is used to cooperate with the adaptive tool changing assembly to fix the tool;

[0088] A first servo ejector 15 is fixedly mounted on the inner wall side of the operation box 5, a first telescopic rod 16 is fixedly mounted on the output end of the outer wall side of the first servo ejector 15, and a top plate 17 is fixedly mounted on the front of the outer wall of the first telescopic rod 16;

[0089] Further, the PLC control system selects different tools for replacement according to the material of the workpiece to be processed, and the PLC control system sends a tool change signal to the third servo micromotor 42, the third servo micromotor 42 is started, the third servo micromotor 42 drives the third rotating shaft 43 to rotate, the third rotating shaft 43 drives the first circulating wheel 44 to rotate, the first circulating wheel 44 drives the second circulating wheel 46 to rotate on the movable rod 45 through the belt ring 41, when the belt ring 41 rotates, the belt ring 41 drives the cutter head 36 to rotate through the tool holder 35, when the selected cutter head 36 rotates into the tool change channel 37, the tool change operation is performed, and after the hydraulic ejector 34 receives the start signal sent by the PLC control system, the hydraulic ejector 34 is started, and the hydraulic The ejector 34 hydraulically ejects the ejector rod 50, and the ejector rod 50 pushes the tool head 36 to be replaced in the tool changing channel 37. The tool head 36 is pushed into the tool changing connecting seat 13 through the positioning cylinder 39 and the telescopic cylinder 14 for limited fixing. At the same time, the new tool head 36 pushed into the tool changing cavity 20 squeezes the old tool head 36 in the tool changing cavity 20, and the old tool head 36 squeezes the pin head 23 to compress the self-locking spring 22. The tail of the old tool head 36 squeezes the ejector plate 17 and the first telescopic rod 16, and the old tool head 36 is unlocked from the locked state in the tool changing cavity 20, and the tool retracting operation is completed; at the same time, the new tool head 36 enters the tool changing cavity 20 to complete the adaptive locking, realizing the integrated function of tool retracting and tool changing, saving tool changing time, and improving tool changing processing efficiency.

[0090] Working principle: First, the infrared alignment sensor 9 collects the workpiece material information and the tool and workpiece processing position information in real time, and transmits it to the PLC control system for analysis and identification. The PLC control system selects different tools for processing according to the type of workpiece material and sends a tool change signal to the adaptive tool change component, mechanical locking component, automatic tool change component, tool circulation component, alignment component and alignment height adjustment component;

[0091] Then, the tool circulation component selects the appropriate tool for replacement, the alignment component and the alignment height adjustment component adjust the tool change alignment according to the different workpieces and tool centerline heights, the automatic tool change component replaces the old tool with the new one, and the adaptive tool change component and the mechanical locking component cooperate to adaptively lock the replaced tool to ensure that the tool is fixed after replacement;

[0092] Finally, the feed assembly adjusts the machining feed amount of the tool, completes the machining position adjustment of the workpiece, and performs machining on the workpiece at different positions.

[0093] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A CNC machining machine tool with intelligent tool head switching, comprising a machine tool body (1), a feed body (3), an adaptive tool changing assembly and a tool changing lubrication assembly, characterized in that: A feed box (3) is fixedly mounted on the side of the outer wall of the machine tool box (1); an operating box (5) is movably mounted on the top of the outer wall of the feed box (3); an adaptive tool changing assembly and a tool changing lubrication assembly are fixedly mounted on the side of the outer wall of the operating box (5); the tool changing lubrication assembly is used to lubricate the tool locked by the adaptive tool changing assembly; A fixed cylinder (12) is fixedly mounted on the outer wall side of the operation box (5); a tool changing connection seat (13) is fixedly mounted on the outer wall side of the fixed cylinder (12); an adaptive tool changing assembly is movably mounted in the tool changing connection seat (13); the adaptive tool changing assembly comprises: a fixed rod (21), a self-locking spring (22) and a pin head (23); A tool changing cavity (20) is provided inside the tool changing connection seat (13), and four fixing rods (21) are symmetrically installed on the center of the inner wall of the tool changing connection seat (13). A pin head (23) is fixedly installed on the head of the outer wall of the fixing rod (21), and the pin head (23) is limitedly engaged in the limit groove of the inner wall of the tool changing connection seat (13). The outer wall of the fixing rod (21) is surrounded by a self-locking spring (22), and the outer wall of the fixing cylinder (12) is fixedly installed with a tool changing lubrication component, and the pin head (23) is designed to be a curved shape with a short left and a long right.

2. The CNC machine tool with intelligent tool head switching according to claim 1, characterized in that: The tool change lubrication assembly is used to lubricate and cool the replaced tool; A connecting pipe (8) is installed at the top and bottom of the outer wall of the fixed cylinder (12), and the connecting pipe (8) is connected to an external coolant and lubricant pump through a rubber tube. An electric control valve (19) is fixedly installed on the inner wall of the connecting pipe (8), and a spray hole (18) is opened on the top and bottom inner walls of the outer wall of the fixed cylinder (12).

3. The CNC machine tool with intelligent tool head switching according to claim 1, characterized in that: A mechanical locking assembly is fixedly installed in the operating box (5), and the mechanical locking assembly is used to cooperate with the adaptive tool changing assembly to fix the tool; A first servo ejector (15) is fixedly mounted on the inner wall side of the operation box (5), a first telescopic rod (16) is fixedly mounted on the output end of the outer wall side of the first servo ejector (15), and a top plate (17) is fixedly mounted on the front of the outer wall of the first telescopic rod (16).

4. The CNC machining machine tool with intelligent tool head switching according to claim 1, characterized in that: A feeding assembly is fixedly mounted on the front of the inner wall of the feeding compartment (3), and the feeding assembly is used to adjust the tool processing position and depth; The feeding assembly comprises: a second servo micro motor (24), a ball screw (26) and a moving seat (27); A second servo micromotor (24) is fixedly mounted on the front of the inner wall of the feed box (3); a second rotating shaft (25) is fixedly mounted on the output end of the rear side of the outer wall of the second servo micromotor (24); a ball screw (26) is fixedly mounted on the rear side of the outer wall of the second rotating shaft (25); two limit rods (28) are fixedly mounted on the front of the inner wall of the feed box (3); a moving seat (27) is movably mounted on the outer wall of the ball screw (26); a limit sleeve (29) is fixedly mounted on the side of the outer wall of the moving seat (27); the limit sleeve (29) is movably mounted on the outer wall of the limit rod (28); a connecting rod (30) is fixedly mounted on the top of the outer wall of the moving seat (27); and the top of the outer wall of the connecting rod (30) is fixedly connected to the operation box (5).

5. The CNC machine tool with intelligent tool head switching according to claim 1, characterized in that: The inner wall side of the operation box (5) is fixedly mounted with an alignment component, which is used for tool change alignment to ensure that the tool is installed in place; The alignment component comprises: an air compression cylinder (32), a sliding track (31) and an alignment seat (11); An air compression cylinder (32) is fixedly mounted on the inner wall side of the operating box (5); a hydraulic push rod (33) is fixedly mounted on the output port on the outer wall side of the air compression cylinder (32); a positioning seat (11) is fixedly connected to the outer wall side of the hydraulic push rod (33); a sliding track (31) is fixedly mounted on the inner wall side of the operating box (5); the positioning seat (11) is movably mounted on the outer wall of the sliding track (31); and a fixing cylinder (12) is fixedly mounted on the outer wall side of the positioning seat (11).

6. The CNC machine tool with intelligent tool head switching according to claim 1, characterized in that: A circulation box (4) is fixedly mounted on the outer wall side of the machine tool body (1), a tool changing box (6) is fixedly mounted on the top of the outer wall of the circulation box (4), and a tool circulation assembly is fixedly mounted on the inner wall side of the circulation box (4), the tool circulation assembly being used for performing tool circulation replacement according to processing requirements; The tool circulation assembly comprises: a third servo micro motor (42), a belt ring (41) and a tool holder (35); A third servo micromotor (42) is fixedly mounted on the inner wall side of the circulation box (4), a third rotating shaft (43) is fixedly mounted on the output end of the outer wall side of the third servo micromotor (42), a first circulation wheel (44) is fixedly mounted on the outer wall of the third rotating shaft (43), a movable rod (45) is fixedly mounted on the inner wall side of the circulation box (4), a second circulation wheel (46) is fixedly mounted on the outer wall of the movable rod (45), and a belt ring (41) is wrapped around the outer wall of the first circulation wheel (44) and the second circulation wheel (46), a plurality of tool holders (35) are fixedly mounted on the outer wall side of the belt ring (41), a tool head (36) is movably mounted on the outer wall of the tool holder (35), a positioning hole (38) is formed on the outer wall of the tool head (36), and the positioning hole (38) and the pin head (23) cooperate with each other.

7. The CNC machine tool with intelligent tool head switching according to claim 6, characterized in that: The inner wall of the tool changing box (6) is provided with a tool changing passage (37), and an automatic tool changing assembly is fixedly installed on the side of the inner wall of the tool changing box (6); The automatic tool changing assembly comprises: a hydraulic ejector (34), an ejector rod (50) and a positioning cylinder (39); A hydraulic ejector (34) is fixedly mounted on the inner wall side of the tool changing box (6), an ejector rod (50) is fixedly mounted on the output end of the outer wall side of the hydraulic ejector (34), a positioning cylinder (39) is fixedly mounted on the outer wall side of the tool changing box (6), a telescopic cylinder (14) is movably mounted on the outer wall side of the positioning cylinder (39), and the telescopic cylinder (14) cooperates with the tool changing cavity (20) in the tool changing connecting seat (13).

8. The CNC machine tool with intelligent tool head switching according to claim 6, characterized in that: A positioning height adjustment component is fixedly installed at the bottom of the inner wall of the machine tool body (1), and the positioning height adjustment component is used to cooperate with the automatic tool changing component to perform tool changing operations; The alignment height adjustment assembly comprises: a spiral lifter (47), a spiral lifter rod (48) and a bracket (49); A screw lift (47) is fixedly mounted on the bottom of the inner wall of the machine tool body (1), a screw lift rod (48) is movably mounted on the output end of the top of the outer wall of the screw lift rod (47), a bracket (49) is fixedly mounted on the top of the outer wall of the screw lift rod (48), and the bracket (49) is used to support the telescopic cylinder (14).

9. The CNC machine tool with intelligent tool head switching according to claim 1, characterized in that: A support leg (2) is fixedly mounted on the bottom of the outer wall of the machine tool body (1), a fixed box (7) is fixedly mounted on the back of the outer wall of the machine tool body (1), a chuck (10) is fixedly mounted on the front of the outer wall of the fixed box (7) via the output shaft of the rotating machine, and a clamping claw (40) is fixedly mounted on the side of the outer wall of the chuck (10).

10. A CNC machining machine tool with intelligent tool head switching according to claim 9, characterized in that: An infrared alignment sensor (9) is fixedly mounted on the front side of the outer wall of the fixed box (7); the infrared alignment sensor (9) is connected to a PLC control system of a numerically controlled machine tool via a data line; and the PLC control system is connected to a processor of the numerically controlled machine tool via a signal line.

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