A dual-axis numerical control machining machine tool

Abstract

The utility model discloses a double -shaft numerical control processing machine tool, including having both sides independent processing unit's protective housing, the inside symmetry of protective housing divides and forms left and right two hermetic processing inner chamber, and the front side of each processing inner chamber is provided with the protective door of open -and -close, each processing inner chamber bottom is provided with sunken recess, and the lateral wall of protective housing is installed with rotation drive motor, is provided with the rotation subassembly of rotation drive motor drive in recess, and the rotation output end of rotation subassembly is connected with workpiece bearing turntable perpendicularly, and the top surface fixedly connected with the positioning base for workpiece clamping of workpiece bearing turntable, and the lateral wall of positioning base is provided with switch mouth, and the fixed component of clamping workpiece is provided in positioning base, and each processing inner chamber is installed with vertical guide's lifting assembly, and the support cantilever of horizontal extension is connected to the executive end of lifting assembly, and the main shaft head of integrated cutting tool is installed to support cantilever terminal, and the back lateral wall fixedly connected with support plate of protective housing, and the dust absorption fan is installed to support plate top surface.

Description

Technical Field

[0001] This utility model relates to the field of machine tool technology, specifically a dual-axis CNC machining tool. Background Technology

[0002] CNC machine tools are automated machine tools controlled by computer programs. They can precisely control the movement trajectory of the cutting tool according to a preset program to achieve high-precision and high-efficiency machining. They are highly flexible and can be adapted to different product requirements by modifying the program, reducing manual intervention, improving production efficiency and product quality stability, and reducing production costs. They are widely used in aerospace, automobile manufacturing and other fields.

[0003] In the existing technology, traditional single-axis machine tools have defects in the processing process. On the one hand, they only have single-axis processing capability and cannot achieve simultaneous operation of multiple workpieces, which makes it difficult to effectively improve the production capacity. Especially when dealing with small batches of workpieces (such as automotive parts, electronic components, etc.), the processing cycle is greatly extended, making it difficult to meet the demand for high-efficiency production. On the other hand, most fixtures still rely on manual screw locking, which is not only time-consuming and labor-intensive, but also requires frequent adjustment of fixtures when dealing with workpieces of different specifications, which seriously affects the continuity of processing and thus restricts the improvement of overall production efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a dual-axis CNC machining tool to solve the problems mentioned in the background art, such as the limitation of production capacity caused by the inability to process multiple workpieces simultaneously, and the fact that most fixtures are locked by manual screws, which is time-consuming and labor-intensive.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A dual-axis CNC machining tool includes a protective shell with independent machining units on both sides. The interior of the protective shell is symmetrically divided into two sealed machining cavities, left and right. Each machining cavity has an openable and closable protective door on its front side. Each machining cavity has a recessed cavity at its bottom. A rotary drive motor is installed on the side wall of the protective shell. A rotary assembly driven by the rotary drive motor is installed inside the recessed cavity. The rotary output end of the rotary assembly is vertically connected to a workpiece bearing turntable. The top of the workpiece bearing turntable... A positioning base for workpiece clamping is fixedly attached to the surface. The side wall of the positioning base has an opening for switching. The positioning base is equipped with a fixing component for clamping the workpiece. Each machining cavity is equipped with a vertically guided lifting component. The actuating end of the lifting component is connected to a horizontally extending support cantilever. The end of the support cantilever is equipped with a spindle head with an integrated cutting tool. A support plate is fixedly attached to the rear side wall of the protective shell. A dust extraction fan is installed on the top surface of the support plate. The dust extraction fan is connected to the machining cavity working area through a rigid connection pipe. A dust collection hood is installed at the end of the rigid connection pipe.

[0006] According to the preferred embodiment of this technical solution, the rotating assembly includes a bearing seat one mounted on the bottom surface of the cavity, a support shaft rotatably connected inside the bearing seat one, the end of the support shaft being fixedly connected to the lower end face of the workpiece bearing turntable, a bearing seat two mounted on the side wall of the groove, a worm gear rotatably connected inside the bearing seat two and connected to the output shaft of the rotary drive motor, a worm wheel provided on the outer wall of the support shaft, and the worm gear meshing with the worm wheel.

[0007] In a preferred embodiment of this technical solution, the fixing component includes an internal gear ring rotatably connected to the positioning base. The outer wall of the internal gear ring is integrally fixed with a lever adapted to the switch port. A bearing seat three is provided inside the positioning base. A rotating shaft is rotatably connected inside the bearing seat three. A flat gear is provided on the outer wall of the rotating shaft. The flat gear meshes with a toothed plate provided through a connecting structure.

[0008] According to the preferred embodiment of this technical solution, the connection structure includes a groove formed on the surface of the toothed plate, a guide rod fixedly connected to the top of the positioning base and extending into the groove, and a support tray integrally fixed to the end of the guide rod.

[0009] According to the preferred embodiment of this technical solution, the lifting assembly includes a bearing housing four and a gantry set at the bottom of the processing cavity. A servo motor is installed on the upper surface of the gantry. The output shaft of the servo motor is connected to a lead screw that is rotatably connected to the bearing housing four. A drive plate is provided on the threaded section of the lead screw. The end face of the drive plate is fixedly connected to the side end of the support cantilever.

[0010] In the preferred embodiment of this technical solution, a guide slide rod is fixedly connected between the gantry and the processing cavity, and the outer wall of the guide slide rod is slidably connected to the drive plate.

[0011] In the preferred embodiment of this technical solution, a sealing strip is provided between the protective door and the processing cavity, and a transparent observation window is installed on the surface of the protective door.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The symmetrically separated left and right enclosed machining cavity design enables dual-axis synchronous independent machining, improving production efficiency, and is especially suitable for batch workpiece processing scenarios; 2. The lever-type clamping mechanism design simplifies the workpiece clamping process for operators and improves workpiece clamping efficiency. Attached Figure Description

[0013] Figure 1 This is a first structural schematic diagram of one embodiment of a dual-axis CNC machining tool according to the present invention; Figure 2 This is a second structural schematic diagram of one embodiment of a dual-axis CNC machining tool according to the present invention; Figure 3 This is a schematic diagram of the structure of the rotating component of this utility model; Figure 4 This is a schematic diagram of the lifting assembly of this utility model; Figure 5 This is a schematic diagram of the structure of the fixing component of this utility model; Figure 6 This is a schematic diagram of the toothed plate of this utility model.

[0014] In the diagram: 1. Protective outer shell; 2. Machining inner cavity; 3. Protective door; 4. Cavity; 5. Rotary drive motor; 6. Workpiece bearing turntable; 7. Positioning base; 8. Support cantilever; 9. Spindle head; 10. Support plate; 11. Dust extraction fan; 12. Rigid connecting pipeline; 13. Dust collection hood; 14. Bearing housing one; 15. Support shaft; 16. Bearing housing two; 17. Worm gear; 18. Worm wheel; 19. Internal gear ring; 20. Lever; 21. Bearing housing three; 22. Rotating shaft; 23. Flat gear; 24. Gear plate; 25. Slide groove; 26. Guide rod; 27. Support plate; 28. Bearing housing four; 29. ​​Gantry; 30. Servo motor; 31. Lead screw; 32. Drive plate; 33. Guide slide rod. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-6This utility model provides an embodiment: a dual-axis CNC machining tool, including a protective shell 1 with independent machining units on both sides. The protective shell 1 is symmetrically divided into two sealed machining cavities 2, one on the left and one on the right. Each machining cavity 2 has an openable and closable protective door 3 on its front side. Each machining cavity 2 has a recessed cavity 4 at its bottom. A rotary drive motor 5 is installed on the side wall of the protective shell 1. A rotary assembly driven by the rotary drive motor 5 is installed in the recessed cavity 4. The rotary output end of the rotary assembly is vertically connected to a workpiece carrying turntable 6. A workpiece carrying turntable 6 is fixedly connected to the top surface of the workpiece carrying turntable 6. The positioning base 7 is used for clamping. A switch opening is provided on the side wall of the positioning base 7. A workpiece clamping fixing assembly is installed inside the positioning base 7. Each machining cavity 2 is equipped with a vertically guided lifting assembly. The actuating end of the lifting assembly is connected to a horizontally extending support cantilever 8. A spindle head 9 with an integrated cutting tool is installed at the end of the support cantilever 8. A support plate 10 is fixed to the rear side wall of the protective shell 1. A dust extraction fan 11 is installed on the top surface of the support plate 10. The dust extraction fan 11 is connected to the working area of ​​the machining cavity 2 via a rigid connecting pipe 12. A dust collection hood 13 is installed at the end of the rigid connecting pipe 12. The protective housing 1 uses a welded carbon steel frame, with the surface treated with epoxy zinc-rich primer and polyurethane topcoat. The interior of the protective housing 1 is symmetrically divided into two sealed machining cavities 2 (left and right) by steel plate partitions, thus achieving dual-axis machining. The front of each cavity is equipped with a double-layered tempered glass protective door 3, featuring an electromagnetic interlock device (model LC-102). Opening the door automatically cuts off the spindle power to prevent accidental entry. The rotary drive motor 5 can be a model MSMD152G1V, enabling precise control of the rotation angle, which in turn drives the workpiece carrier turntable 6 to achieve continuous rotation from 0-360° for positioning. The base 7 (made of 6061-T6 aluminum alloy) is fixed to the top surface of the turntable with bolts. The side wall has a switch opening for easy workpiece clamping. The support cantilever 8 (carbon fiber composite material) extends horizontally to the machining area, and the electric spindle (model BT40-SP15) is installed at the end. The spindle head 9 integrates an HSK-A60 tool holder interface to support automatic tool changing. In addition, a damping damper is set at the connection between the cantilever and the spindle to ensure cutting stability. The dust extraction fan 11 can be a high-pressure centrifugal fan (model 9-26No.8D), and the air volume is adjusted by a frequency converter. The fan inlet has a built-in filter.

[0017] Please see Figure 3A further embodiment of this solution is as follows: The rotating assembly includes a bearing seat 14 mounted on the bottom surface of the cavity 4. A support shaft 15 is rotatably connected inside the bearing seat 14. The end of the support shaft 15 is fixedly connected to the lower end face of the workpiece bearing turntable 6. A bearing seat 2 16 is mounted on the side wall of the groove. A worm gear 17 connected to the output shaft of the rotary drive motor 5 is rotatably connected inside the bearing seat 2 16. A worm wheel 18 is provided on the outer wall of the support shaft 15. The worm gear 17 and the worm wheel 18 are meshed together. The bearing seat 14 is fixed to the bottom surface of the cavity 4 by bolts and has a deep groove ball bearing embedded inside to provide radial and axial support for the support shaft 15. The support shaft 15 vertically penetrates the bearing seat 14, and its end is rigidly connected to the lower end face of the workpiece bearing turntable 6 through a flange, transmitting the torque of the rotary drive motor 5 to the turntable. When the rotary drive motor 5 starts, the worm 17 rotates, driving the worm wheel 18 to rotate, which in turn drives the support shaft 15 and the turntable to rotate. The self-locking characteristic of the worm wheel 18 and worm 17 transmission (the worm 17 can drive the worm wheel 18, but the worm wheel 18 cannot drive the worm 17 in the opposite direction) ensures that the turntable remains in a fixed position when the machine stops.

[0018] Please see Figures 5-6 A further solution based on this embodiment is as follows: the fixing component includes an internal gear ring 19 rotatably connected to the positioning base 7. A lever 20 adapted to the switch port is integrally fixed to the outer wall of the internal gear ring 19. A bearing seat 21 is provided inside the positioning base 7. A rotating shaft 22 is rotatably connected inside the bearing seat 21. A spur gear 23 is provided on the outer wall of the rotating shaft 22. The spur gear 23 meshes with a toothed plate 24 provided through a connecting structure. The internal gear ring 19 is rotatably connected to the positioning base 7 via a thrust ball bearing. The operator drives the internal gear ring 19 to rotate by moving the lever 20, thus achieving the workpiece clamping state. When the internal gear ring 19 rotates, the toothed plate 24 is driven to move linearly through the flat gear 23. The direction of movement of the toothed plate 24 is related to the rotation direction of the internal gear ring 19, thereby clamping the workpiece. To ensure that the internal gear ring 19 is stably locked in the target position, a spring pin locking mechanism is added to the side wall of the positioning base 7. It consists of a locking pin driven by a compression spring and locking holes evenly distributed around the internal gear ring 19. When the internal gear ring 19 rotates to the clamping or releasing position, the spring pushes the pin to insert into the corresponding locking hole to achieve mechanical fixation. When unlocking, the pin is disengaged from the hole by the linkage mechanism of the lever 20 or by manually pulling back the lever.

[0019] Please see Figures 5-6 A further solution based on this embodiment is as follows: the connection structure includes a groove 25 formed on the surface of the toothed plate 24, a guide rod 26 is fixedly connected to the top of the positioning base 7 and the guide rod 26 extends into the groove 25, and a support tray 27 is integrally fixed to the end of the guide rod 26. The support tray 27 restricts the toothed plate 24 to move only along the axial direction of the guide rod 26 to prevent the toothed plate 24 from deviating or disengaging. The cooperation between the guide rod 26 and the groove 25 ensures that the toothed plate 24 moves smoothly and improves the clamping accuracy.

[0020] Please see Figure 4 A further solution based on this embodiment is as follows: The lifting assembly includes a bearing seat 28 and a gantry 29 disposed at the bottom of the machining cavity 2. A servo motor 30 is mounted on the upper surface of the gantry 29. The output shaft of the servo motor 30 is connected to a lead screw 31 that is rotatably connected to the bearing seat 28. A drive plate 32 is disposed on the threaded section of the lead screw 31. The end face of the drive plate 32 is fixedly connected to the side end of the support cantilever 8. The output shaft of the servo motor 30 is connected to the lead screw 31 through a coupling. Both ends of the lead screw 31 are supported by the bearing seat 28. When the servo motor 30 is started, the lead screw 31 rotates and drives the drive plate 32 to rise and fall vertically, thereby driving the support cantilever 8 and the spindle head 9 to adjust their height.

[0021] Please see Figure 4 A further solution based on this embodiment is as follows: a guide slide rod 33 is fixedly connected between the gantry 29 and the processing cavity 2. The outer wall of the guide slide rod 33 is slidably connected to the drive plate 32. The drive plate 32 is slidably connected to the guide slide rod 33 through a linear bearing. The guide slide rod 33 restricts the drive plate 32 to move only in the vertical direction, eliminating the horizontal offset that may be generated by the lead screw 31 transmission and ensuring the lifting accuracy of the spindle head 9.

[0022] Please see Figure 1 A further solution based on this embodiment is as follows: a sealing strip is provided between the protective door 3 and the processing cavity 2. A transparent observation window is installed on the surface of the protective door 3. The sealing strip is fixed to the edge of the door frame by a pressure strip. When the protective door 3 is closed, the sealing strip is squeezed and deformed, filling the gap between the door and forming an airtight structure. The sealing strip can effectively block cutting dust and coolant from entering the outside of the cavity, while reducing noise transmission. The observation window is sealed with silicone sealant. The observation window provides a visual function for the processing process, making it easy for operators to monitor the status of the workpiece. The surface of the observation window is coated with an anti-fog coating to prevent fogging caused by alternating hot and cold temperatures.

[0023] Working principle: First, open the double-layer tempered glass protective door 3 equipped on the front side of the processing inner cavity 2, place the workpiece to be processed on the positioning base 7 on the top surface of the workpiece bearing turntable 6, and then operate the fixing component. By moving the lever 20, which is integrally fixed with the inner gear ring 19 and adapted to the opening and closing port, the inner gear ring 19 is driven to rotate. The inner gear ring 19 is rotatably connected to the positioning base 7 via a thrust ball bearing. When rotating, it drives the spur gear 23 to rotate, which in turn drives the toothed plate 24 meshing with the spur gear 23 to move linearly (the toothed plate 24 cooperates with the top guide rod 26 of the positioning base 7 through the surface sliding groove 25, and can only move along the axial direction of the guide rod 26. The end bearing plate 27 of the guide rod 26 prevents the toothed plate 24 from shifting or disengaging). When the inner gear ring 19 rotates to the clamping position, the compression spring of the spring pin locking mechanism on the side wall of the positioning base 7 drives the locking pin to insert into the circumferentially distributed locking holes of the inner gear ring 19 to achieve mechanical fixation and complete the workpiece clamping. When the protective door 3 is closed, the sealing strip is squeezed and deformed to fill the gap between the door seams, forming an airtight structure that prevents cutting dust and coolant from entering the inner cavity and reduces noise transmission. The transparent observation window allows operators to monitor the status of the workpiece. Start the rotary drive motor 5. The motor output shaft drives the worm 17 to rotate. The worm wheel 18, which meshes with the worm 17, rotates, driving the support shaft 15 and the turntable to rotate, so as to realize the continuous rotation of the workpiece from 0 to 360°. Subsequently, the lifting assembly inside the machining cavity 2 begins to work. The output shaft of the servo motor 30 is connected to the lead screw 31 through a coupling. The lead screw 31 rotates to drive the drive plate 32 of the threaded section to rise and fall vertically. The drive plate 32 is slidably connected to the guide slide rod 33 fixed between the gantry 29 and the machining cavity 2 through a linear bearing, ensuring that it moves only in the vertical direction and eliminating the horizontal offset that may be generated by the transmission of the lead screw 31. The drive plate 32 drives the support cantilever 8 fixed to its side end and the spindle head 9 of the integrated cutting tool installed at the end to adjust to a suitable height. During the processing, the dust extraction fan 11 installed on the top surface of the rear side wall support plate 10 of the protective shell 1 is started, and the cutting dust in the working area of ​​the processing cavity 2 is sucked away through the rigid connection pipe 12 and the terminal dust collection hood 13. After processing is completed, open the protective door 3 again, operate the lever 20 of the fixing component to rotate the internal gear ring 19 to the release position, the spring pin locking mechanism unlocks, and the processed workpiece is taken out.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-axis CNC machining tool, characterized in that: The protective housing (1) includes a protective shell with independent processing units on both sides. The protective shell (1) is symmetrically divided into two sealed processing cavities (2) on the left and right. Each processing cavity (2) has an openable and closable protective door (3) on its front side. Each processing cavity (2) has a recessed cavity (4) at its bottom. A rotary drive motor (5) is installed on the side wall of the protective shell (1). A rotary assembly driven by the rotary drive motor (5) is installed in the recessed cavity (4). The rotary output end of the rotary assembly is vertically connected to a workpiece bearing turntable (6). A positioning base (7) for workpiece clamping is fixed to the top surface of the workpiece bearing turntable (6). 7) has a switch opening on its side wall. The positioning base (7) is equipped with a workpiece clamping fixing component. Each machining cavity (2) is equipped with a vertically guided lifting component. The lifting component's execution end is connected to a horizontally extending support arm (8). The end of the support arm (8) is equipped with an integrated cutting tool spindle head (9). The rear side wall of the protective shell (1) is fixed with a support plate (10). A dust collector (11) is installed on the top surface of the support plate (10). The dust collector (11) is connected to the machining cavity (2) working area through a rigid connection pipe (12). A dust collection hood (13) is installed at the end of the rigid connection pipe (12).

2. The dual-axis CNC machining tool according to claim 1, characterized in that: The rotating assembly includes a bearing seat 1 (14) mounted on the bottom surface of the cavity (4), a support shaft (15) rotatably connected inside the bearing seat 1 (14), the end of the support shaft (15) being fixedly connected to the lower end face of the workpiece bearing turntable (6), a bearing seat 2 (16) mounted on the side wall of the groove, a worm (17) rotatably connected inside the bearing seat 2 (16) and connected to the output shaft of the rotary drive motor (5), a worm wheel (18) is provided on the outer wall of the support shaft (15), and the worm (17) and the worm wheel (18) are meshed together.

3. A dual-axis CNC machining tool according to claim 2, characterized in that: The fixing component includes an internal gear ring (19) rotatably connected to the positioning base (7). The outer wall of the internal gear ring (19) is integrally fixed with a lever (20) adapted to the switch port. The positioning base (7) is provided with a bearing seat three (21). The bearing seat three (21) is rotatably connected with a rotating shaft (22). The outer wall of the rotating shaft (22) is provided with a spur gear (23). The spur gear (23) meshes with a toothed plate (24) provided through a connecting structure.

4. A dual-axis CNC machining tool according to claim 3, characterized in that: The connection structure includes a groove (25) formed on the surface of the toothed plate (24), a guide rod (26) is fixedly connected to the top of the positioning base (7) and the guide rod (26) extends into the groove (25), and a support tray (27) is integrally fixed to the end of the guide rod (26).

5. A dual-axis CNC machining tool according to claim 4, characterized in that: The lifting assembly includes a bearing seat four (28) and a gantry (29) located at the bottom of the machining cavity (2). A servo motor (30) is mounted on the upper surface of the gantry (29). The output shaft of the servo motor (30) is connected to a lead screw (31) that is rotatably connected to the bearing seat four (28). A drive plate (32) is provided on the threaded section of the lead screw (31). The end face of the drive plate (32) is fixedly connected to the side end of the support cantilever (8).

6. A dual-axis CNC machining tool according to claim 5, characterized in that: A guide slide rod (33) is fixedly connected between the gantry (29) and the processing cavity (2), and the outer wall of the guide slide rod (33) is slidably connected to the drive plate (32).

7. A dual-axis CNC machining tool according to claim 6, characterized in that: A sealing strip is provided between the protective door (3) and the processing cavity (2), and a transparent observation window is installed on the surface of the protective door (3).

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