Gantry machining center equipment

Through the integrated design of worm gear transmission and negative pressure cleaning system, the mechanical wear and transmission efficiency attenuation of the gantry machining center equipment is solved, efficient track cleaning and precision maintenance are achieved, and the overall performance of the equipment is improved.

CN120395469APending Publication Date: 2025-08-01CHINA TRADE PRECISION MACHINERY (JIANGSU) CO LTD
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Patent Information

Application Number
CN202510738350.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-04
Publication Date
2025-08-01

AI Technical Summary

Technical Problem

The existing gantry machining center equipment has problems such as fast mechanical wear and obvious attenuation of transmission efficiency over time, and the metal debris produced by processing are prone to accumulate on the rail contact surface, resulting in stagnation of the motion pair and the accuracy offset.

Method used

The worm and worm gear transmission structure and negative pressure cleaning system are adopted to drive the track wheel through the worm and worm gear transmission to realize the movement of the gantry, and the airflow channel is formed in combination with the negative pressure fan blades to remove metal debris and coolant residues generated during the processing process in real time. The integrated design automatically completes the track cleaning operation.

Benefits of technology

It significantly improves transmission efficiency, reduces mechanical wear, reduces maintenance frequency, maintains long-term operation accuracy, avoids space occupation and energy consumption of additional cleaning devices, and ensures efficient and stable operation of the equipment.

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Abstract

The gantry machining center equipment comprises a portal frame, a three-axis moving platform sliding table module, a sliding rail block and a rail long block, the three-axis moving platform sliding table module is assembled on the front face of the portal frame, and a tool magazine is assembled on the outer portion of the output end of the three-axis moving platform sliding table module; the sliding rail blocks are assembled on the two sides of the left side of the bottom of the portal frame and slidably connected with the long rail blocks, a transmission mechanism is arranged in an inner cavity of each sliding rail block and comprises a gear motor, the output end of each gear motor is connected with a worm, and the bottom of each worm is in meshed connection with a worm wheel. Rail wheels are connected to the left and right sides of the worm gear. According to the gantry machining center equipment, the airflow path penetrates through the contact face of the sliding rail block and the rail long block, metal scraps and cooling liquid residues generated in the machining process can be removed in real time, and the technical problem that a traditional linear guide rail is prone to being clamped due to scrap accumulation is fundamentally solved.
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Description

Technical Field

[0001] The present invention relates to the field of gantry machining center equipment, and more particularly to a gantry machining center equipment. Background Art

[0002] As a key equipment in the field of modern mechanical machining, the gantry machining center is widely used in high-precision machining scenarios of large metal workpieces. Such equipment realizes multi-dimensional positioning of the machining head through the movement of the gantry, and the stability of its transmission system and the cleaning efficiency of the track directly affect the machining accuracy and the service life of the equipment. Under the framework of traditional technologies, how to balance the transmission efficiency and maintenance cost, and how to solve the interference of machining waste chips to moving parts have always been the core technical bottlenecks restricting the improvement of equipment performance.

[0003] Existing gantry machining centers generally adopt ball screws as the transmission mechanism. Although they can meet the basic positioning requirements, there are problems of relatively fast mechanical wear and obvious attenuation of transmission efficiency with the service life. During the long-term operation of its linear guide rail structure, metal chips and coolant generated during machining are likely to accumulate on the track contact surface, resulting in jamming of the kinematic pair and even precision deviation. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present application provides a gantry machining center equipment to solve the problems of relatively fast mechanical wear and obvious attenuation of transmission efficiency with the service life. And to solve the technical problem that during the long-term operation of its linear guide rail structure, metal chips and coolant generated during machining are likely to accumulate on the track contact surface, resulting in jamming of the kinematic pair and even precision deviation.

[0005] To achieve the above object, the present application provides the following technical solution: A gantry machining center equipment, including a gantry, a three-axis moving platform slide module, a sliding track block, and a track long block. The three-axis moving platform slide module is assembled on the front of the gantry, and a tool magazine is assembled outside the output end of the three-axis moving platform slide module. The sliding track block is assembled on both sides of the left bottom of the gantry, and the sliding track block is slidably connected with the track long block. A transmission mechanism is arranged in the inner cavity of the sliding track block. The transmission mechanism includes a reduction motor, the output end of the reduction motor is connected with a worm, the bottom of the worm is meshed with a worm wheel, both the left and right sides of the worm wheel are connected with track wheels, the other end of the worm is connected with a first bevel gear, the outside of the first bevel gear is meshed with a second bevel gear, a transmission belt is assembled outside the second bevel gear, the other end of the transmission belt is assembled with a short shaft, and a negative pressure fan blade is assembled outside the short shaft.

[0006] Preferably, a control and display module is assembled on the front of the gantry. The control and display module includes a display module and a control module, and the control and display module is connected to the gantry by bolts. The control and display module adopts a touch-type human-machine interaction interface, integrating functions of real-time monitoring of processing parameters and emergency braking. Its display module can dynamically present the three-axis coordinate position, spindle speed and load ratio. The control module realizes the preview of the processing trajectory and error compensation through a PLC controller, significantly improving the operation convenience and processing accuracy.

[0007] Preferably, an annular groove is formed in the inner cavity of the sliding track block, and a protective groove is formed at the bottom of the annular groove. The track wheel is arranged in the inner cavity of the annular groove through a pedestal bearing. The annular groove and the protective groove form a double-layer protection structure. The annular groove accommodates the track wheel and the transmission component, and the protective groove isolates external cutting fluid and dust through a sealing rubber ring. The pedestal bearing adopts a self-lubricating design, which can reduce the friction resistance when the track wheel rotates and prevent the lubricating oil from leaking and polluting the processing environment.

[0008] Preferably, a limiting groove is formed in the inner cavity of the annular groove, and a bearing is assembled inside the limiting groove. The inside of the bearing is connected to the outside of the worm. The limiting groove applies double axial and radial constraints to the worm through the bearing, eliminating the vibration offset generated during high-speed rotation and ensuring the meshing accuracy of the worm and the worm gear. This structure improves the torque transmission efficiency of the transmission mechanism and reduces the noise decibel value at the same time.

[0009] Preferably, a motor seat is assembled at the bottom of the reduction motor, and the bottom of the motor seat is connected to the outside of the sliding track block through a reinforcing rib. The motor seat adopts an aluminum alloy hollow design, which reduces the overall weight while ensuring the structural strength. The reinforcing ribs are radially distributed, effectively dispersing the reverse torque generated during the operation of the reduction motor and preventing the sliding track block from deforming due to stress concentration.

[0010] Preferably, a track chute is arranged at the top of the track long block, and the top of the track chute is connected to the bottom of the track wheel. The surface of the track chute is quenched and coated with a solid lubricant, forming a low-friction coefficient contact surface with the track wheel. When the gantry moves, the track wheel rolls along the track chute, converting sliding friction into rolling friction and extending the service life of the track.

[0011] Preferably, exhaust grooves are evenly formed on the outside of the track long block, and a filter screen is assembled in the inner cavity of the air outlet of the exhaust groove. The exhaust grooves are aligned with the air flow path generated by the negative pressure fan blades to form a directional ventilation channel. The filter screen is made of 304 stainless steel with a pore diameter of 0.2 mm, which can intercept chip particles with a diameter greater than 0.3 mm and prevent impurities from entering the inside of the sliding track block and causing the transmission mechanism to jam.

[0012] Preferably, a filter gas disk is assembled outside the short axis through a bearing, and the outside of the filter gas disk is arranged in the inner cavity of the annular groove through bolts. The filter gas disk adopts a double-layer honeycomb structure, with the outer layer filtering particles with a diameter greater than 0.5 mm and the inner layer adsorbing oil mist molecules. Its detachable design facilitates regular cleaning, and together with the negative pressure fan blade, it keeps the inner cavity of the annular groove in a slightly negative pressure state to prevent the coolant from penetrating into the transmission component.

[0013] Preferably, both sides of the inner cavity of the transmission belt are connected with belt pulleys, and the two belt pulleys are respectively connected with the short axis and the second bevel gear. The transmission belt adopts a synchronous toothed belt structure and transmits power through the meshing of the tooth grooves, avoiding the slipping phenomenon of the traditional V-belt. The surface of the belt pulley is treated with hard chromium plating to ensure that the transmission accuracy can still be maintained under high-speed rotation conditions.

[0014] Preferably, a spherical bearing is assembled outside the belt pulley, and the outside of the spherical bearing is connected with the sliding track block through a short arm. The spherical bearing has an automatic centering function and can compensate for the axial offset of the belt pulley caused by temperature changes. The short arm adopts a split structure and is fastened by bolts, which is convenient for quick disassembly and maintenance, and at the same time reduces the vibration transmitted to the sliding track block body.

[0015] In summary, the present application provides a gantry machining center device with the following beneficial effects: 1. For this gantry machining center device, the worm and worm gear transmission structure is used to drive the track wheel to move the gantry. Utilizing the self-locking characteristic and high transmission ratio advantage of the worm and worm gear transmission, while ensuring the moving stability, the transmission efficiency is significantly improved. Compared with the traditional ball screw structure, this design effectively reduces mechanical wear and reduces the maintenance frequency. The introduction of the bevel gear set in the transmission mechanism realizes power splitting. While driving the gantry to move, the negative pressure fan blade is driven to rotate through the belt transmission component, forming a continuous air flow channel. The air flow path penetrates the contact surface between the sliding track block and the track long block, and can continuously remove the metal chips and coolant residues generated during the machining process.

[0016] 2. For this gantry machining center device, the integrated design of the negative pressure cleaning system and the moving mechanism enables the device to automatically complete the track cleaning operation during operation, avoiding the space occupation and increased energy consumption caused by additional configuration of cleaning devices. The air flow guiding design ensures that the waste chips are discharged along a specific path, preventing the chips from being redeposited in the kinematic pair gap, thereby maintaining the long-term operation accuracy. Brief Description of the Drawings

[0017] Figure 1 is the front schematic view of the present invention.

[0018] Figure 2 is the plan schematic view of the present invention.

[0019] Figure 3It is an external schematic diagram of the sliding track block of the present invention.

[0020] Figure 4 It is an exploded schematic diagram of the sliding track block of the present invention.

[0021] Figure 5 It is a partial cross-sectional view of the sliding track block of the present invention.

[0022] Figure 6 It is an external schematic diagram of the transmission mechanism of the present invention.

[0023] Explanation of reference numerals: 1. Gantry; 11. Control display module; 2. Three-axis moving platform slide module; 21. Tool magazine; 3. Sliding track block; 31. Annular groove; 32. Limiting groove; 33. Protection groove; 4. Track long block; 41. Track chute; 42. Exhaust groove; 5. Transmission mechanism; 51. Reduction motor; 52. Worm; 53. Worm gear; 54. Track wheel; 55. First bevel gear; 56. Second bevel gear; 57. Transmission belt; 58. Short shaft; 59. Negative pressure fan blade; 510. Filter air disk; 511. Spherical bearing; 512. Motor seat. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0025] The present application provides a technical solution. Please refer to Figure 1 and Figure 2 , a gantry machining center device, including a gantry 1, a three-axis moving platform slide module 2, a sliding track block 3, and a track long block 4. The three-axis moving platform slide module 2 is assembled on the front of the gantry 1, and a tool magazine 21 is assembled outside the output end of the three-axis moving platform slide module 2. The sliding track block 3 is assembled on both sides of the bottom left of the gantry 1, and the sliding track block 3 is slidably connected to the track long block 4. A transmission mechanism 5 is arranged in the inner cavity of the sliding track block 3. The transmission mechanism 5 includes a reduction motor 51. The output end of the reduction motor 51 is connected to a worm 52. The bottom of the worm 52 is meshed and connected to a worm gear 53. Both the left and right sides of the worm gear 53 are connected to a track wheel 54. The track wheel 54 is connected to the inner cavity of the sliding track block 3 through a pedestal bearing. The other end of the worm 52 is connected to a first bevel gear 55. The outside of the first bevel gear 55 is meshed and connected to a second bevel gear 56. The outside of the second bevel gear 56 is assembled with a transmission belt 57. The other end of the transmission belt 57 is assembled with a short shaft 58. A negative pressure fan blade 59 is assembled outside the short shaft 58.

[0026] Please refer to Figure 6 , the gantry 1 is driven to move by the worm 52 and worm gear 53 transmission structure. By utilizing the self-locking characteristic and high transmission ratio advantage of the worm gear 53 and worm 52 transmission, while ensuring the smoothness of movement, the transmission efficiency is significantly improved. Compared with the traditional ball screw structure, this design effectively reduces mechanical wear and reduces the maintenance frequency. The introduction of the bevel gear set in the transmission mechanism 5 realizes power splitting. While driving the gantry 1 to move, the negative pressure fan blade 59 is driven to rotate through the belt transmission assembly, forming a continuous air flow channel. This air flow path runs through the contact surface between the sliding track block 3 and the track long block, and can continuously remove metal chips and coolant residues generated during the machining process, fundamentally solving the technical problem that traditional linear guide rails are prone to jamming due to waste chip accumulation.

[0027] When the machining center is running, the tool magazine 21 realizes automatic tool change through the drive of the servo motor. The built-in RFID chip can identify the tool model and remaining service life, and cooperate with the parameter matching function of the control display module 11 to avoid machining errors caused by tool overload.

[0028] Please refer to Figure 3 and Figure 4 , the sliding contact surface of the sliding track block 3 is deposited with a cemented carbide layer by laser cladding process, and the hardness reaches HRC62, significantly improving the anti-wear performance. The fit clearance between it and the track long block 4 is controlled within the range of 0.05 - 0.1 mm, which not only ensures the movement flexibility but also suppresses the transmission of machining vibration.

[0029] The transmission belt 57 is made of aramid fiber-reinforced polyurethane material, and the tensile strength reaches 300 MPa, and the elastic modulus remains stable in the temperature range of -20°C to 80°C.

[0030] When the reduction motor 51 is started, the worm 52 transmits the rotational motion to the track wheel 54 through the worm gear 53, realizing the lateral movement of the gantry 1 along the track long block 4; at the same time, when the first bevel gear 55 at the end of the worm 52 drives the second bevel gear 56, the transmission belt 57 adopts a synchronous tooth profile structure to ensure zero backlash in power transmission, so that the rotational speed of the negative pressure fan blade 59 forms a linear coupling relationship with the moving speed of the gantry 1. This air flow accelerates the heat dissipation of the contact surface between the track wheel 54 and the track chute 41 through the negative pressure effect. Through fluid dynamics simulation verification, the uniformity of the temperature field distribution in the air flow coverage area is increased by 40%, the temperature difference of the contact surface is controlled within ±2°C, and the cutting debris is synchronously removed. When the air flow speed reaches 8 m / s, aluminum chip particles with a diameter of 0.1 mm can be effectively removed, avoiding movement jamming caused by metal particle accumulation.

[0031] The control display module 11 adopts a touch-type human-machine interaction interface, integrating the functions of real-time monitoring of machining parameters and emergency braking. Its PLC controller is equipped with an adaptive control algorithm, which can dynamically adjust the feed speed according to the spindle load rate, optimizing the surface roughness Ra value of the machining to below 0.4μm. Its display module can dynamically present the three-axis coordinate position, spindle speed and load rate. The coordinate display resolution reaches 0.001mm, and the monitoring delay of the spindle speed is less than 50ms. The control module realizes the machining trajectory preview and error compensation through the PLC controller. The trajectory preview function can identify the interference risk in advance and generate a warning log, and the error compensation algorithm improves the roundness machining accuracy to IT5 level.

[0032] The control display module 11 is assembled on the front of the gantry 1. The control display module 11 includes a display module and a control module, and the control display module 11 is connected to the gantry 1 by bolts. The control display module 11 adopts a touch-type human-machine interaction interface, integrating the functions of real-time monitoring of machining parameters and emergency braking. Its display module can dynamically present the three-axis coordinate position, spindle speed and load rate. The control module realizes the machining trajectory preview and error compensation through the PLC controller, significantly improving the operation convenience and machining accuracy.

[0033] Please refer to Figure 5 , an annular groove 31 is opened in the inner cavity of the sliding track block 3, and a protective groove 33 is opened at the bottom of the annular groove 31. The track wheel 54 is arranged in the inner cavity of the annular groove 31 through a pedestal bearing. The annular groove 31 and the protective groove 33 form a double-layer protection structure, where the annular groove 31 accommodates the track wheel 54 and the transmission components, and the protective groove 33 isolates external cutting fluid and dust through a sealing rubber ring. The pedestal bearing adopts a self-lubricating design, which can reduce the frictional resistance when the track wheel 54 rotates, and at the same time prevent the lubricating oil from leaking and polluting the machining environment.

[0034] A limiting groove 32 is opened in the inner cavity of the annular groove 31, and a bearing is assembled inside the limiting groove 32. The inside of the bearing is connected to the outside of the worm 52. The limiting groove 32 exerts double axial and radial constraints on the worm 52 through the bearing, eliminating the vibration offset generated during high-speed rotation and ensuring the meshing accuracy between the worm 52 and the worm gear 53. This structure improves the torque transmission efficiency of the transmission mechanism 5 and reduces the noise decibel value at the same time.

[0035] The bottom of the reduction motor 51 is assembled with a motor base 512. The bottom of the motor base 512 is connected to the outside of the sliding track block 3 through a reinforcing rib. The motor base 512 adopts an aluminum alloy hollow design, reducing the overall weight while ensuring the structural strength. The reinforcing ribs are radially distributed, effectively dispersing the reverse torque generated during the operation of the reduction motor 51 and preventing the sliding track block 3 from deforming due to stress concentration.

[0036] The top of the long rail block 4 is provided with a rail chute 41. The top of the rail chute 41 is connected to the bottom of the rail wheel 54. The surface of the rail chute 41 is quenched and coated with solid lubricant, forming a low-friction coefficient contact surface with the rail wheel 54. When the gantry 1 moves, the rail wheel 54 rolls along the rail chute 41, converting sliding friction into rolling friction and extending the service life of the rail.

[0037] Exhaust grooves 42 are evenly arranged on the outside of the long rail block 4. The inner cavity of the air outlet of the exhaust groove 42 is equipped with a filter screen. The exhaust groove 42 is aligned with the air flow path generated by the negative pressure fan blade 59 to form a directional ventilation channel. The filter screen is made of 304 stainless steel with a pore diameter of 0.2 mm, which can intercept chip particles with a diameter greater than 0.3 mm and prevent impurities from entering the inside of the sliding rail block 3 and causing the transmission mechanism 5 to get stuck.

[0038] A filter air disk 510 is assembled outside the short shaft 58 through a bearing. The outside of the filter air disk 510 is set in the inner cavity of the annular groove 31 through bolts. The filter air disk 510 adopts a double-layer honeycomb structure. The outer layer filters particles with a diameter greater than 0.5 mm, and the inner layer adsorbs oil mist molecules. Its detachable design is convenient for regular cleaning, and it cooperates with the negative pressure fan blade 59 to keep the inner cavity of the annular groove 31 in a slightly negative pressure state, preventing the coolant from penetrating into the transmission components.

[0039] Both sides of the inner cavity of the transmission belt 57 are connected with belt pulleys. The two belt pulleys are respectively connected to the short shaft 58 and the second bevel gear 56. The transmission belt 57 adopts a synchronous toothed belt structure and transmits power through tooth groove meshing, avoiding the slipping phenomenon of traditional V-belts. The surface of the belt pulley is treated with hard chromium plating to ensure the transmission accuracy can still be maintained under high-speed rotation conditions.

[0040] A spherical bearing 511 is assembled outside the belt pulley. The outside of the spherical bearing 511 is connected to the sliding rail block 3 through a short arm. The spherical bearing 511 has an automatic centering function and can compensate for the axial offset of the belt pulley caused by temperature changes. The short arm adopts a split structure and is fastened by bolts, which is convenient for quick disassembly and maintenance, and at the same time reduces the vibration transmitted to the sliding rail block 3 body.

[0041] Set the length of the long track block 4 to the length required for the gantry 1 to move, and fix the long track block 4. Slide the sliding track block 3 on the top of the long track block 4. Control the tool magazine 21 through the control display module 11 to process the workpiece. Start the reduction motor 51 to drive the worm 52 to rotate, and then drive the worm gear 53 and the track wheel 54 to rotate. The track wheel 54 rotates on the top of the long track block 4, and then drives the sliding track block 3 to move. When the worm 52 rotates, it drives the first bevel gear 55 to rotate, and then drives the second bevel gear 56 to rotate. Drive the short shaft 58 and the negative pressure fan blade 59 to rotate through the transmission belt 57. The negative pressure fan blade 59 rotates to introduce the external air flow through negative pressure, and the air flow is discharged through the sliding track block 3 and the long track block 4 to clean the waste chips that may accumulate in the inner cavity of the long track block 4, avoiding affecting the running smoothness of the sliding track block 3 and avoiding the traditional ball screw or linear guide moving method that easily affects the running smoothness due to waste chips inside.

[0042] The operator first fixes the long track block 4 on the preset base. The top track chute 41 is quenched and coated with a solid lubricant to form a high-hardness and low-friction contact surface. The sliding track block 3 is fitted with the track chute 41 through four groups of track wheels 54 at the bottom. Each group of track wheels 54 is fixed in the annular groove 31 by a pedestal bearing, and the self-lubricating design of the bearing ensures that the rotation resistance is less than 0.5 N·m. At this time, the control display module 11 completes the initialization self-check, and the touch interface displays the three-axis coordinate origin calibration parameters, and the PLC controller enters the standby state.

[0043] After the processing instruction is input through the control display module 11, the equipment enters the power transmission and motion execution stage. The reduction motor 51 is fixed on the outside of the sliding track block 3 through the motor base 512, and its output shaft drives the worm 52 to rotate. The worm 52 adopts a ZA-type helix design and meshes with the worm gear 53 at a contact angle of 30°, and the transmission efficiency reaches 82%. The two sides of the worm gear 53 are connected to the track wheel 54 through splines to convert the rotational motion into a pure rolling motion of the track wheel 54 in the track chute 41. At this time, the gantry 1 drives the tool magazine 21 through the three-axis moving platform slide module 2 to achieve X / Y / Z three-way positioning, and the spindle speed is regulated to the preset value through the frequency converter.

[0044] While the movement is being executed, the first conical tooth 55 at the end of the worm 52 activates the auxiliary function module. The first conical tooth 55 meshes with the second conical tooth 56 at a 90° stagger, and the transmission ratio is set to 1:1.5. The power is transmitted to the short shaft 58 via the transmission belt 57. The transmission belt 57 adopts an HTD tooth profile structure with a tooth pitch of 5 mm, and the mating precision with the hard chromium-plated pulley reaches IT6 level. The short shaft 58 drives the negative pressure fan blade 59 to rotate at 1800 rpm, creating a negative pressure environment of 0.3 kPa in the annular groove 31. The air flow path is designed as follows: The external air enters the annular groove 31 after being double-filtered by the air filter mesh disc 510, flows through the contact surface between the track wheel 54 and the track chute 41, and finally is discharged through the exhaust groove 42 of the track long block 4. The interception efficiency of the exhaust groove 42 reaches 98%, ensuring the cleanliness of the discharged air flow.

[0045] During the operation of the equipment, the multi-level protection system continuously functions. The annular groove 31 and the protection groove 33 form a double-sealing structure. The former houses the transmission components, and the latter blocks the cutting fluid through a fluororubber sealing ring. The deep groove ball bearing in the limit groove 32 precisely constrains the worm 52 axially by 0.02 mm and radially by 0.01 mm, eliminating vibration offset during high-speed operation. The radial stiffeners of the motor base 512 disperse the reverse torque to the main body of the sliding track block 3, and the stress test shows that the maximum deformation is controlled within 0.15 mm.

[0046] When machining generates cutting debris, the negative pressure air flow system activates the active cleaning mode. The directional air flow generated by the negative pressure fan blade 59 flushes the track contact surface at a flow rate of 8 m / s. Combined with the adhesion of the solid lubricant, the metal particle stripping efficiency is increased by 75%. The conical diversion structure of the exhaust groove 42 guides the chip-containing air flow to the filter screen. Particles with a diameter > 0.3 mm are physically intercepted, and the oil mist molecules are adsorbed by the activated carbon layer of the air filter mesh disc 510, ensuring that the cleanliness of the inner cavity of the annular groove 31 is maintained at the ISO 4406 18 / 16 level.

[0047] The PLC controller of the control and display module 11 executes three core functions in real time: realizing closed-loop control of the three-axis position through encoder feedback, and the error compensation algorithm controls the positioning accuracy within the range of ±0.01 mm; dynamically monitoring the spindle load rate, and automatically reducing the feed speed when it exceeds the 85% threshold; the emergency braking system can cut off the power transmission within 50 ms, and the braking distance is shortened to 60% of the traditional system. The touch interface synchronously displays the three-dimensional machining trajectory preview, and the operator can view the micron-level machining details through gesture zooming.

[0048] During equipment downtime and maintenance, the air filter plate 510 utilizes a quick-release flange connection, extending the cleaning cycle to 500 hours. The tension of the drive belt 57 is automatically adjusted by the spherical bearing 511, compensating for axial deflection caused by temperature fluctuations. The lubrication system utilizes a centralized oil supply design. Lubricating oil is delivered to the contact surfaces through pre-buried pipes within the track length block 4. Combined with the negative pressure airflow, it forms a gas-liquid mixed lubrication film, reducing the friction coefficient to 0.008.

[0049] The rolling friction of the track wheel 54 reduces drive power requirements by 40%. The negative pressure airflow removes 65% of the heat from the contact surface. Combined with the heat storage properties of the quenched track, the system's thermal deformation is controlled within 0.02mm / 1000mm. The control module's predictive maintenance function, using vibration sensor data, provides a 12-hour advance warning of bearing wear, boosting the overall equipment efficiency (OEE) to 92%.

[0050] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A gantry machining center device, comprising a gantry (1), a three-axis moving platform slide module (2), a sliding track block (3), and a track long block (4). The three-axis moving platform slide module (2) is assembled on the front of the gantry (1), and a tool magazine (21) is assembled outside the output end of the three-axis moving platform slide module (2). The sliding track block (3) is assembled on both sides of the left side of the bottom of the gantry (1), and the sliding track block (3) is slidably connected to the track long block (4), characterized in that: The inner cavity of the sliding track block (3) is provided with a transmission mechanism (5). The transmission mechanism (5) includes a reduction motor (51). The output end of the reduction motor (51) is connected to a worm (52). The bottom of the worm (52) is meshed with a worm wheel (53). Both the left and right sides of the worm wheel (53) are connected with track wheels (54). The other end of the worm (52) is connected to a first bevel gear (55). The outside of the first bevel gear (55) is meshed with a second bevel gear (56). The outside of the second bevel gear (56) is equipped with a transmission belt (57). The other end of the transmission belt (57) is equipped with a short shaft (58). The outside of the short shaft (58) is equipped with a negative pressure fan blade (59).

2. The gantry machining center equipment according to claim 1, characterized in that: The front of the gantry (1) is equipped with a control display module (11). The control display module (11) includes a display module and a control module, and the control display module (11) is connected to the gantry (1) by bolts.

3. A gantry machining center device according to claim 1, characterized in that: The inner cavity of the sliding track block (3) is provided with an annular groove (31). The bottom of the annular groove (31) is provided with a protection groove (33). The track wheel (54) is arranged in the inner cavity of the annular groove (31) through a pedestal bearing.

4. The gantry machining center equipment according to claim 3, characterized in that: The inner cavity of the annular groove (31) is provided with a limiting groove (32). A bearing is arranged inside the limiting groove (32), and the inside of the bearing is connected to the outside of the worm (52).

5. A gantry machining center device according to claim 1, characterized in that: The bottom of the reduction motor (51) is equipped with a motor base (512). The bottom of the motor base (512) is connected to the outside of the sliding track block (3) through a reinforcing rib.

6. The gantry machining center equipment according to claim 1, characterized in that: The top of the track long block (4) is provided with a track chute (41). The top of the track chute (41) is connected to the bottom of the track wheel (54).

7. A gantry machining center device according to claim 1, characterized in that: The outside of the track long block (4) is evenly provided with exhaust grooves (42). The inner cavity of the air outlet of the exhaust groove (42) is equipped with a filter screen.

8. A gantry machining center device according to claim 3, characterized in that: The outside of the short shaft (58) is equipped with a filter air disk (510) through a bearing. The outside of the filter air disk (510) is arranged in the inner cavity of the annular groove (31) by bolts.

9. A gantry machining center device according to claim 1, characterized in that: Both sides of the inner cavity of the transmission belt (57) are connected with belt wheels. The two belt wheels are respectively connected to the short shaft (58) and the second bevel gear (56).

10. A gantry machining center device according to claim 9, characterized in that: The outside of the belt wheel is equipped with a spherical bearing (511). The outside of the spherical bearing (511) is connected to the sliding track block (3) through a short arm.

Citation Information

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