Double-side-driven gantry type machining equipment

Abstract

The double-side-driven gantry type machining equipment comprises a base, a workbench is arranged on the upper surface of the base, a tool magazine is arranged on one side of the workbench, a plurality of chip removal grooves communicating the workbench in the vertical direction are formed in the upper surface of the workbench, and a chip removal mechanism is arranged in the base and communicates with the chip removal grooves; the portal frame stretches across and is arranged above the base in a sliding mode along the X axis, the portal frame comprises two installation bases arranged on the workbench in a sliding mode, and a cross beam is connected to the upper portions of the two installation bases; a bilateral Y-axis driving mechanism is arranged on the base, the portal frame is connected with the bilateral Y-axis driving mechanism, an X-axis driving mechanism is arranged on the portal frame, and a main shaft grabbing and clamping assembly is connected to the X-axis driving mechanism. The double-side Y-axis driving mechanism is stable in driving and high in precision, the chip removal mechanism is integrated below the workbench, collection and real-time discharge of machining waste chips are achieved, the problems that existing desktop-level CNC equipment is insufficient in driving stability and difficult in waste chip collection are effectively solved, the machining precision, the machining efficiency and the cleaning and maintaining efficiency are remarkably improved, and the machining cost is reduced. The device is suitable for precision machining of small workpieces.

Description

Technical Field

[0001] This invention belongs to the technical field of desktop CNC machining equipment, specifically relating to a dual-side driven gantry machining equipment. Background Technology

[0002] With the increasing demand for machining small structural parts, desktop CNC machining equipment is widely used in model making, small parts processing, and other scenarios due to its compact size and ease of operation. However, existing desktop gantry machining equipment has core problems: 1. Insufficient drive stability: Most equipment adopts a single-sided drive method (i.e., the drive mechanism is only set on one side of the gantry). During high-precision machining or long-term operation, the single-sided drive force is prone to uneven force on the gantry, resulting in tilting and displacement, which in turn affects the machining accuracy and cannot meet the precision machining requirements of small structural parts; 2. Difficulty in collecting waste chips: Metal or non-metal waste chips generated during the machining process tend to accumulate on the worktable, which not only requires frequent manual cleaning, but may also get stuck in the guide rails or spindle clearance, aggravating component wear. At the same time, residual waste chips will affect the positioning accuracy of subsequent machined parts and increase machining errors. Summary of the Invention

[0003] To address the aforementioned problems, the purpose of this invention is to provide a dual-sided driven gantry machining equipment that solves the issues of poor stability and difficulty in waste chip collection inherent in existing single-sided driven equipment.

[0004] To achieve the above objectives, the technical solution adopted by the present invention includes: A dual-sided driven gantry machining equipment includes a base, a worktable on the upper surface of the base, a tool magazine on one side of the worktable, and multiple chip removal grooves on the upper surface of the worktable that connect the upper and lower parts of the worktable. A chip removal mechanism is provided inside the base and is connected to the chip removal grooves. It also includes a gantry frame that spans across and slides along the X-axis above the base. The gantry frame includes two mounting seats that slide on the worktable, and a crossbeam is connected to the upper part of the two mounting seats. A dual-sided Y-axis drive mechanism is provided on the base, and the gantry frame is connected to the dual-sided Y-axis drive mechanism. An X-axis drive mechanism is provided on the gantry frame, and a spindle gripper assembly is connected to the X-axis drive mechanism.

[0005] Preferably, the chip removal mechanism includes a chip removal channel located inside the base, which is located directly below the workbench and extends to the front side wall of the base. The cross-section of the chip removal channel is not smaller than the cross-section of the workbench. It also includes a pull-out waste box located inside the chip removal channel, with multiple filter holes on the upper surface of the waste box.

[0006] Preferably, the chip removal mechanism also includes a vacuum cleaner interface located on the rear side wall of the base and connecting the chip removal channel to the outside. The vacuum cleaner interface is also equipped with a chip removal fan, and the waste box has multiple chip removal holes on the side wall near the vacuum cleaner interface.

[0007] Preferably, the dual-side Y-axis drive mechanism includes a first synchronous pulley located on the upper rear side of the base, with a first motor coaxially connected to the first synchronous pulley. It also includes two second synchronous pulleys located at opposite ends of the rear side of the base, with the first synchronous pulley and the two second synchronous pulleys connected by a first synchronous belt. Furthermore, it includes two Y-axis linear modules arranged parallel to both sides of the base, with the two Y-axis linear modules coaxially connected to the two second synchronous pulleys. Two mounting bases are connected to the two Y-axis linear modules.

[0008] Preferably, the Y-axis linear module includes a first lead screw coaxially connected to the second synchronous pulley, a first lead screw nut coaxially threaded onto the first lead screw, and the first lead screw nut being connected to the mounting base.

[0009] Preferably, the X-axis drive mechanism includes an X-axis linear module disposed between two mounting seats and parallel to the crossbeam, and a crossbeam base plate slidably connected to the crossbeam and connected to the X-axis linear module, with the spindle gripper assembly fixedly connected to the crossbeam base plate.

[0010] Preferably, the X-axis linear module includes a second lead screw disposed between two mounting seats, a second lead screw nut coaxially threaded on the second lead screw, the second lead screw nut being fixedly connected to the bottom plate of the crossbeam, and a second drive motor being located outside any mounting seat and connected to the second lead screw for transmission.

[0011] Preferably, the spindle gripper assembly includes a mounting plate, a Z-axis linear module on one side of the mounting plate, the Z-axis linear module being connected to the bottom plate of the crossbeam; a vertically downward spindle and a third motor are provided on the other side of the mounting plate, the spindle and the third motor being connected by a third synchronous belt drive, the spindle being a hollow column with openings at both ends, and gripping mechanisms being provided at both ends of the spindle cavity; a probe assembly is also provided on the side of the lower end of the spindle on the other side of the mounting plate.

[0012] Preferably, the gripping mechanism includes a pull rod coaxially disposed in the inner cavity of the spindle, a spring is provided between the pull rod and the inner wall of the spindle, and the lower end of the pull rod is limitedly connected to the spring, the upper end of the pull rod extends to the outside of the upper port of the spindle and is connected to a fifth motor, and the lower end of the pull rod is connected to a tool holder clamp, the lower end of the tool holder clamp in the natural state of the spring extends to the outside of the lower port of the spindle.

[0013] Preferably, the Z-axis linear module includes a lead screw assembly, which includes a third lead screw and a third lead screw nut coaxially threaded onto the third lead screw. The third lead screw nut is fixed to the bottom plate of the crossbeam, and a fourth motor that is driven and connected to the third lead screw is also provided on the mounting plate.

[0014] Compared with the prior art, the advantages of the present invention are: (1) The present invention provides a dual-sided driven gantry machining equipment, which fundamentally solves the problems of uneven force distribution and easy tilting and displacement of the gantry caused by the traditional single-sided drive method by setting up a dual-sided Y-axis drive mechanism consisting of a single drive motor synchronously driving ball screws on both sides via a synchronous belt. This design ensures the absolute synchronicity and force balance of the movement on both sides of the gantry, making the equipment run smoothly and significantly improving the positioning accuracy and repeatability of Y-axis movement and overall machining.

[0015] (2) The present invention provides a dual-sided driven gantry machining equipment, which realizes the collection and real-time discharge of machining waste by setting a chip removal groove on the worktable and integrating a chip removal mechanism including a pull-out waste box, a waste channel and a vacuum cleaner interface below it. The waste box can be quickly pulled out for cleaning, and combined with the negative pressure adsorption of the external vacuum cleaner, it effectively avoids the accumulation of waste on the worktable or entering components such as precision guide rails and spindles. This not only reduces the frequency of manual cleaning and maintenance costs, but also ensures the cleanliness of the processing environment and the long-term reliability of the equipment.

[0016] (3) The present invention provides a dual-side driven gantry machining equipment. By integrating a gripping mechanism consisting of a pull rod, a spring and a drive motor on the spindle and cooperating with a side-mounted tool magazine, the tool changing speed is fast and the clamping accuracy is high. It eliminates the inefficiency and installation error problems caused by manual tool changing and is particularly suitable for multi-process continuous machining scenarios, which greatly improves the processing efficiency of the equipment.

[0017] (4) The dual-side driven gantry machining equipment of the present invention, through the reasonable design of the components, the reasonable layout of each component, and the coordinated work, realizes the precision machining capability that was previously only available in medium and large-sized equipment in a limited space, and is particularly suitable for the application needs of precision machining scenarios such as small structural parts and models. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the dual-sided driven gantry machining equipment of the present invention. Figure 2 This is a partial structural schematic diagram of the dual-sided Y-axis drive mechanism of the present invention; Figure 3 This is a cross-sectional schematic diagram of the chip removal mechanism of the present invention; Figure 4 This is a schematic diagram of the assembly of the spindle gripper assembly and the tool magazine of the present invention; Figure 5 This is a schematic diagram of the gantry frame structure of the present invention; Figure 6This is a schematic diagram of the X-axis drive mechanism of the present invention; Figure 7 This is a schematic diagram of the gripping mechanism of the present invention. The labels in the diagram represent: 1-Base, 2-Gantry frame, 3-Dual-side Y-axis drive mechanism, 4-Worktable, 5-Spindle gripper assembly, 6-Tool magazine, 7-Chip removal mechanism, 8-Gripper mechanism; 11-Steel belt, 12-Steel belt roller; 20 Mounting base, 21 Crossbeam, 22 Crossbeam base plate, 23 Second drive motor, 24 Second lead screw, 25 Second lead screw nut; 31-First motor, 32-First lead screw, 33-First lead screw nut, 34-Second synchronous pulley, 35-First synchronous pulley, 36-Tensioner pulley, 37-First synchronous belt 50 Mounting plate, 51 Third motor, 52 Main spindle, 53 Slide rail, 54 Slider, 55 Fourth motor, 56 Lead screw assembly, 561 Third lead screw, 562 Third lead screw nut, 57 Second synchronous belt, 58 Probe assembly, 59 Third synchronous belt; 61-Tool holder; 62-Tool setter; 71-Waste box, 710 Chip removal hole, 72-Waste channel, 73-Vacuum cleaner interface, 74-Chip removal fan; 81-Tool holder clamp, 82-Broach rod, 83-Spring, 84 Fifth motor. Detailed Implementation

[0019] The invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of this invention.

[0020] It should be noted that the directional terms mentioned in this document, such as "inner cavity," "inner circumference," "inner wall," and "outer side," are consistent with the specific directions on the paper in the accompanying drawings or the corresponding directions of the space shown in the drawings; all components and devices in this invention, unless otherwise specified, are components and devices known in the prior art.

[0021] Example This embodiment discloses a dual-side driven gantry machining equipment, including a base 1, a worktable 4 on the upper surface of the base 1, a tool magazine 6 on one side of the worktable 4, and multiple chip removal grooves 41 on the upper surface of the worktable 4 that connect vertically. A chip removal mechanism 7 is provided inside the base 1 and is connected to the chip removal grooves 41. It also includes a gantry frame 2 that spans across and slides along the X-axis above the base 1. The gantry frame 2 includes two mounting seats 20 that slide on the worktable 4, and a crossbeam 21 is connected to the upper part of the two mounting seats 20. A dual-side Y-axis drive mechanism 3 is provided on the base 1, and the gantry frame 2 is connected to the dual-side Y-axis drive mechanism 3. An X-axis drive mechanism is provided on the gantry frame 2, and a spindle gripper assembly 5 is connected to the X-axis drive mechanism. The overall system has a stability scheme preset through the "dual-side drive"; an efficient chip removal scheme preset through the "chip removal grooves" and "chip removal mechanism"; and a tool changing scheme preset through the "tool magazine" and "spindle gripper assembly".

[0022] In this embodiment, the base 1 serves as the basic support structure of the equipment. It is preferably made of 6061 aluminum alloy through a single-piece molding process, with an anodized surface treatment to improve its strength, rigidity, and corrosion resistance. The base 1 has an internal cavity to accommodate the chip removal mechanism 7. The worktable 4 is bolted to the center of the top surface of the base 1. Its surface is a flat processing area, preferably 300mm × 320mm in size. Multiple chip removal grooves 41 penetrating the thickness of the worktable are formed on its surface, allowing processing chips to fall through these grooves. T-slots or standard fixture interfaces can be provided on the edges of the worktable 4 for mounting vises or special fixtures to secure the workpiece. The tool magazine 6 is fixedly installed on one side of the worktable 4 (e.g., the right side).

[0023] Specifically, the chip removal mechanism 7 includes a chip removal channel 72 located within the base 1. The chip removal channel 72 is situated directly below the workbench 4 and extends to the front side wall of the base 1. The cross-section of the chip removal channel 72 is not smaller than the cross-section of the workbench 4. It also includes a pull-out waste box 71 located within the chip removal channel 72, with multiple filter holes on its upper surface. The chip removal mechanism 7 further includes a vacuum cleaner interface 73 located on the rear side wall of the base 1, connecting the chip removal channel 72 to the outside. A chip removal fan 74 is also provided within the vacuum cleaner interface 73, and multiple chip removal holes 710 are formed in the waste box 71 near the side wall of the vacuum cleaner interface 73.

[0024] In this embodiment, the waste channel 72 is located within the internal cavity of the base 1, directly below the workbench 4. Its cross-sectional area is not less than the projected area of ​​the workbench 4 to ensure that all falling waste can smoothly enter. The waste channel 72 extends forward (towards the operator) and opens to form a pull-out opening. The waste container 71 is a pull-out design, which can be inserted into the waste channel 72 from the pull-out opening on the front side of the base 1. The top panel of the waste container 71 is densely covered with filter holes, preferably 2-4 mm in diameter, to intercept larger waste blocks while allowing fine particles and dust to pass through. Multiple waste discharge holes 710 are provided on the side wall of the waste container 71 near the rear side of the base 1 (i.e., away from the operator). The vacuum cleaner interface 73 is located on the rear side wall of the base 1 and communicates with the rear of the waste channel 72. The vacuum cleaner interface 73 is preferably a standard interface (such as a G3 / 4 thread or a φ60mm quick-connect interface) for easy connection to an external industrial vacuum cleaner. To further enhance the chip removal capability, a chip removal fan 74 can be installed at the vacuum cleaner interface 73 or near the interface in the chip removal channel 72. When the external vacuum cleaner is working, a negative pressure airflow is formed in the chip removal channel 72, which sucks in the fine chips that the waste box 71 fails to intercept through the chip removal hole 710 and discharges them from the device through the vacuum cleaner interface 73.

[0025] The dual-side Y-axis drive mechanism 3 in this embodiment is used to drive the entire gantry frame 2 to move synchronously and smoothly along the length direction (Y-axis) of the base 1. Its specific structure is as follows: Drive source: A first motor 31 (Y-axis drive motor) is mounted at the upper middle position of the rear side of the base 1. This motor is preferably a high-precision stepper motor or a servo motor.

[0026] Synchronous transmission: A first synchronous pulley 35 is mounted on the output shaft of the first motor 31. A second synchronous pulley 34 is mounted at each end of the rear side of the base 1. The first synchronous pulley 35 and the two second synchronous pulleys 34 are connected by a ring-shaped first synchronous belt 37. Multiple tension pulleys 36 are provided on the synchronous belt 37 to adjust the tension of the synchronous belt, ensuring smooth transmission without slippage.

[0027] Linear execution: A Y-axis linear module is installed on each of the left and right sides of the base 1. Each module includes a first lead screw 32 (ball screw) arranged horizontally along the Y-axis, and a first lead screw nut 33 sleeved on the first lead screw 32. One end of the first lead screw 32 is coaxially connected to a second synchronous pulley 34 on the same side via a coupling. The bottoms of the two mounting seats 20 are fixedly connected to the first lead screw nut 33 on the corresponding side.

[0028] During operation, the first motor 31 rotates, which drives the two second synchronous pulleys 34 to rotate synchronously through the first synchronous belt 37. This, in turn, drives the first lead screws 32 on the left and right sides to rotate synchronously, so that the two first lead screw nuts 33 drive the two mounting seats 20 of the gantry frame 2 to achieve precise and synchronous Y-axis movement, which fundamentally avoids the torsional deformation and offset that may be caused by unilateral drive.

[0029] The X-axis drive mechanism of this embodiment is used to drive the spindle gripper assembly 5 to move along the length direction (X-axis) of the crossbeam 21. It includes: a second lead screw 24 (ball screw) mounted between two mounting seats 20 along the X-axis, a second lead screw nut 2 sleeved on the second lead screw 24, a second drive motor 23 (X-axis drive motor) mounted on the outside of one of the mounting seats 20 by a bracket, the output shaft of which is connected to one end of the second lead screw 24 by a coupling, and a crossbeam base plate 22, the back of which is fixedly connected to the second lead screw nut 25, and the front of which is slidably connected to the front edge of the crossbeam 21 by a linear guide pair (not shown in detail in the figure); when the second drive motor 23 drives the second lead screw 24 to rotate, the second lead screw nut 25 drives the crossbeam base plate 22 and the spindle gripper assembly 5 on it to move precisely along the X-axis.

[0030] The spindle gripper assembly 5 in this embodiment is the core component that directly performs the cutting task and achieves vertical movement through the Z-axis drive mechanism. The spindle gripper assembly 5 mainly includes a mounting plate 50, a Z-axis linear module, a spindle drive unit, and a gripping mechanism 8.

[0031] Mounting Plate and Z-Axis Drive: One side of the mounting plate 50 (facing the inside of the gantry) is connected to the Z-axis linear module. This module includes a lead screw assembly 56, which has a vertically arranged third lead screw 561 and a third lead screw nut 562 sleeved thereon. The third lead screw nut 562 is fixedly connected to the crossbeam base plate 22. A fourth motor 55 (Z-axis drive motor) is fixed on the mounting plate 50, and its output shaft is connected to the upper end of the third lead screw 561 via a coupling. When the fourth motor 55 rotates, it drives the third lead screw 561 to rotate. Because the third lead screw nut 562 is fixed, the entire mounting plate 50 is forced to drive the main shaft to make a vertical (Z-axis) lifting and lowering motion relative to the crossbeam base plate 22. To ensure smooth movement, a vertical slide rail 53 and a slider 54 are usually provided between the mounting plate 50 and the crossbeam base plate 22 as auxiliary guides.

[0032] Spindle drive: On the other side of the mounting plate 50 (facing the worktable), a vertically downward spindle 52 and a third motor 51 (spindle rotation motor) are mounted. The third motor 51 is usually fixed by a bracket. The output shaft of the spindle 52 and the third motor 51 are connected by a third synchronous belt 59 (i.e., the spindle synchronous belt), thereby driving the spindle 52 to rotate at high speed. The spindle 52 is a hollow cylindrical structure with openings at both ends.

[0033] Clamping Mechanism: The clamping mechanism 8 is built into the hollow cavity of the spindle 52 and is used to clamp and release the cutting tool. It includes: a tool holder clamp 81: located inside the lower end port of the spindle 52, used to directly clamp the tool holder (such as using an ER collet structure); a drawbar 82: a slender rod coaxially disposed inside the cavity of the spindle 52, the upper end of which extends out of the upper end of the spindle 52 and the lower end is connected to the tool holder clamp 81; a spring 83: sleeved on the drawbar 82, located between the drawbar 82 and the inner wall of the spindle 52, providing an upward elastic force; and a fifth motor 84 (drawbar drive motor): mounted above the spindle 52, its output shaft being drivenly connected to the upper end of the drawbar 82 (e.g., through an eccentric cam or screw mechanism).

[0034] Working principle: In the natural (power off) state, the spring force of spring 83 keeps the drawbar 82 in the lower position, causing the tool holder clamp 81 to be in the loosened state (at this time, the lower end of the tool holder clamp 81 slightly extends out of the lower end of the spindle for easy tool insertion). When it is necessary to clamp the tool, the fifth motor 84 is activated, driving the drawbar 82 to move upward against the spring force of spring 83, thereby pulling the internal mechanism of the tool holder clamp 81 to retract and tightly clamp the inserted tool holder. When changing tools, the process is reversed.

[0035] Probe assembly 58: Fixed on mounting plate 50, located beside the lower end of spindle 52. Used for positioning, edge finding, and center finding of workpiece before machining, achieving high-precision tool setting.

[0036] like Figure 4 As shown, the tool magazine 6 is fixed to one side of the worktable 4. Its main body is a cuboid structure, and multiple (e.g., 5) tool holders 61 are evenly distributed along the length of the upper surface. Each tool holder 61 is used to store a spare tool. The tool magazine 6 can also integrate a tool setter 62 for on-machine measurement of tool length and diameter and detection of tool wear or breakage.

[0037] To improve equipment lifespan, a steel belt 11 and a steel belt roller 12 can be installed inside the two mounting seats 20 of the gantry 2 along the Y-axis movement direction. When the gantry moves, the steel belt roller 12 presses the steel belt 11 to form a retractable protective cover, effectively preventing dust, chips, and coolant from the processing area from splashing onto the internal Y-axis drive mechanism.

[0038] This embodiment can also be equipped with an integrated control system and sensor monitoring system to achieve fully automated and intelligent operation of the entire process. The core of the control system may include a host computer (industrial PC or embedded controller), a motion control card, and a programmable logic controller (PLC), which is responsible for receiving machining program (such as G-code) instructions and performing trajectory planning and logical judgment. The sensor monitoring system includes, but is not limited to: rotary encoders installed on the output shafts of the first motor 31, the second drive motor 23, the fourth motor 55, and the fifth motor 84, for accurately feeding back the speed and angle of each motor; grating rulers or linear encoders installed on the ends of the Y-axis, X-axis, and Z-axis lead screws or moving parts, for achieving full closed-loop position feedback and ensuring that the positioning accuracy of each axis can reach ±0.005mm; proximity sensors or photoelectric sensors installed at the positions of each tool holder 61 in the tool magazine 6 and near the gripping mechanism 8 of the spindle 52, for detecting the tool's position status and the arrival signal during the tool changing process; and vibration sensors and temperature sensors installed on key parts of the equipment for monitoring the equipment's operating status.

[0039] The control system and sensing system described above are conventional designs that can be implemented by those skilled in the art. Through the coordinated operation of the control system and sensing system, the following automation functions can be achieved: Automatic tool change process: When the program calls the tool change command, the control system first drives the X and Y axes to precisely position the spindle 52 above the target tool holder in the tool magazine 6, and the Z axis descends to the tool change height. After the proximity sensor confirms alignment, the control system instructs the fifth motor 84 to actuate, releasing the current tool and placing it in the empty tool position. Then, the spindle moves to the new tool position, and the fifth motor 84 reverses its motion to drive the gripping mechanism 8 to tighten the new tool. After the sensor confirms that the tool is clamped in place, the tool change process is completed. The entire process can be completed automatically within a few seconds without manual intervention.

[0040] Adaptive processing: The control system can dynamically adjust the drive current and speed of each motor based on real-time feedback from the encoder and grating ruler to compensate for mechanical errors and ensure absolute synchronization of the gantry under dual-side drive. For example, if the feedback position of the Y-axis linear module on one side is slightly lagging, the control system can instantly fine-tune the drive parameters of the first motor 31 on that side to ensure that the gantry operates without tilting.

[0041] Safety monitoring and early warning: If the vibration sensor detects abnormal vibration (such as tool breakage or collision), the control system can immediately trigger an emergency stop. The temperature sensor monitors the temperature rise of the spindle and drive motor; if the temperature exceeds the limit, it can automatically reduce the speed or suspend processing for cooling to prevent the equipment from overheating and being damaged.

[0042] Automatic workpiece setting: Combined with probe assembly 58 and control system, it can automatically perform operations such as workpiece edge finding, center finding, and height measurement, and automatically set the workpiece coordinate system, replacing traditional manual tool setting and improving preparation efficiency and accuracy.

[0043] In summary, through the deep integration of the control system with various position and status sensors, this equipment not only achieves full-process automation from tool changing and tool setting to machining, but also possesses high-precision positioning, real-time error compensation, process safety monitoring, and intelligent early warning capabilities, thereby significantly improving the equipment's intelligence level, machining reliability, and overall production efficiency.

[0044] Example 2 This embodiment discloses the basic processing flow of a dual-sided driven gantry machining equipment according to Embodiment 1, as follows: 1. Preparation: Fix the workpiece on the workbench 4, connect the external vacuum cleaner pipe to the vacuum cleaner interface 73, and ensure that the waste box 71 is installed in place.

[0045] 2. Tool setting and tool changing: The control system drives the spindle gripper assembly 5 to move, and the probe assembly 58 completes the workpiece coordinate setting. When multiple machining operations are required, the spindle moves above the tool magazine 6, and through the coordinated action of the gripper mechanism 8 and the tool magazine, the current tool is automatically returned and the new tool is picked up.

[0046] 3. Machining and Chip Removal: Upon starting the machining program, the drive mechanisms of each axis work in concert, driving the spindle and cutting tool to cut the workpiece. The generated chips fall through the chip removal groove 41 on the worktable. Larger chips are intercepted and collected inside the waste bin 71 by the filter screen at the top; fine dust and debris are drawn away through the chip removal hole 710 of the waste bin 71 by the negative pressure generated by the external vacuum cleaner (and optional built-in chip removal fan 74), and then sucked away through the chip removal channel 72 and the vacuum cleaner interface 73.

[0047] 4. Cleaning: After processing, turn off the vacuum cleaner, pull out the waste box 71 from the front of the base, clean out the larger pieces of waste accumulated in it, and then reinsert it.

[0048] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0049] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0050] Furthermore, the various implementation methods disclosed in this solution can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content invented by this disclosure.

Claims

1. A gantry machining apparatus of double-sided drive, characterized by, It includes base (1), the upper surface of base (1) is equipped with workbench (4), one side of workbench (4) is equipped with tool magazine (6), the upper surface of workbench (4) is equipped with multiple chip removal groove (41) that is communicated with its upper and lower, the base (1) is opened in the chip removal mechanism (7), and the chip removal mechanism (7) is communicated with chip removal groove (41); It also includes gantry (2) that is across and along X axis slidingly arranged on the top of base (1), the gantry (2) includes 2 mounting seats (20) that are slidingly arranged on workbench (4), the upper portion of 2 mounting seats (20) is connected with crossbeam (21); The upper surface of base (1) is equipped with double-sided Y-axis drive mechanism (3), the gantry (2) is connected with double-sided Y-axis drive mechanism (3), the upper surface of gantry (2) is equipped with X-axis drive mechanism, and X-axis drive mechanism is connected with main shaft grabbing assembly (5).

2. The dual side driven gantry machining apparatus of claim 1, wherein, The chip removal mechanism (7) includes scrap passage (72) that is arranged in base (1), the scrap passage (72) is located below workbench (4) and extends to the front side wall of base (1), the cross section of scrap passage (72) is not less than the cross section of workbench (4), and the upper surface of scrap passage (72) is equipped with multiple filtering through holes.

3. The dual side driven gantry machining apparatus of claim 2, wherein, The chip removal mechanism (7) also includes dust collector interface (73) that is arranged on the rear side wall of base (1) and is communicated with the outside of chip removal passage (72), the dust collector interface (73) is also equipped with chip removal fan (74), and the sidewall of scrap passage (72) is equipped with multiple chip removal through holes (710) close to dust collector interface (73).

4. The dual-sided driven gantry machining apparatus of any of claims 1-3, wherein, The double-sided Y-axis drive mechanism (3) includes first synchronous wheel (35) that is arranged on the upper portion of rear side of base (1), the first synchronous wheel (35) is coaxially connected with 31-first motor, and the double-sided Y-axis drive mechanism (3) also includes two second synchronous wheels (34) that are respectively arranged on the two ends of rear side of base (1), the first synchronous wheel (35) and the two second synchronous wheels (34) are drivingly connected through first synchronous belt (37), and the double-sided Y-axis drive mechanism (3) also includes two Y-axis linear modules that are parallelly arranged on the two sides of base (1), the two Y-axis linear modules are coaxially connected with the two second synchronous wheels (34) respectively, and the two mounting seats (20) are connected with the two Y-axis linear modules.

5. The dual side driven gantry machining apparatus of claim 4, wherein, The Y-axis linear module includes first lead screw (32) that is coaxially connected with second synchronous wheel (34), the first lead screw (32) is coaxially threadedly sleeved with first lead screw nut (33), and the first lead screw nut (33) is connected with mounting seat (20).

6. The dual-sided driven gantry machining apparatus of any of claims 1-3, wherein, The X-axis drive mechanism includes X-axis linear module that is arranged between the two mounting seats (20) and is parallel with crossbeam (21), and the X-axis drive mechanism also includes crossbeam bottom plate (22) that is slidingly connected with crossbeam (21) and is connected with X-axis linear module, and main shaft grabbing assembly (5) is fixedly connected with crossbeam bottom plate (22).

7. The dual side driven gantry machining apparatus of claim 6, wherein, The X-axis linear module includes second lead screw (24) that is arranged between the two mounting seats (20), the second lead screw (24) is coaxially threadedly sleeved with second lead screw nut (33), the second lead screw nut (33) is fixedly connected with crossbeam bottom plate (22), and second drive motor (23) is drivingly connected with second lead screw (24) and is located outside any mounting seat (20).

8. The dual side driven gantry machining apparatus of claim 7, wherein, The main shaft grabbing assembly (5) comprises a mounting plate (50), one side of the mounting plate (50) is provided with a Z-axis linear module, and the Z-axis linear module is connected with the cross beam bottom plate (22); The other side of the mounting plate (50) is provided with a vertical downward main shaft (52) and a third motor (51), the main shaft (52) is in transmission connection with the third motor (51) through a third synchronous belt (59), the main shaft (52) is a hollow cylinder with two open ends, the inner cavity of the main shaft (52) extends to both ends and is provided with a grabbing mechanism (8); The other side of the mounting plate (50) is provided with a probe assembly (58) beside the lower end of the main shaft (52).

9. The dual side driven gantry machining apparatus of claim 8, wherein, The grabbing mechanism (8) comprises a broach rod (82) coaxially arranged in the inner cavity of the main shaft (52), a spring (83) is arranged between the broach rod (82) and the inner wall of the main shaft (52), and the lower end of the broach rod (82) is in limiting connection with the spring (83), the upper end of the broach rod (82) extends out of the upper end of the main shaft (52) and is connected with a fifth motor (84), the lower end of the broach rod (82) is connected with a tool holder clamp (81), and the lower end of the tool holder clamp (81) in the natural state of the spring (83) extends out of the lower end of the main shaft (52).

10. The dual side driven gantry machining apparatus of claim 9, wherein, The Z-axis linear module comprises a lead screw assembly (56), the lead screw assembly (56) comprises a third lead screw (561) and a third lead screw nut (562) coaxially and threadedly sleeved on the third lead screw (561), the third lead screw nut (562) is connected and fixed with the cross beam bottom plate (22), and the mounting plate (50) is further provided with a fourth motor (55) in transmission connection with the third lead screw (561).

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