Movable column type nonmetal five-axis machining center

Abstract

The utility model discloses a movable column type nonmetal five-axis machining center, and belongs to the field of numerical control machining equipment, the movable column type nonmetal five-axis machining center comprises a machining platform and a portal frame structure, two stand columns of the portal frame structure are movably mounted on the two sides of the machining platform, a Y-axis sliding plate is movably arranged on the side face of a cross beam of the portal frame structure, and a Z-axis sliding plate is movably arranged on one side of the Y-axis sliding plate; the Z-axis sliding plate is provided with a shaft head assembly with two rotating shafts, the Y-axis sliding plate is connected with a translation mechanism, the Z-axis sliding plate is connected with a lifting mechanism, the translation mechanism comprises a first driving motor, the lifting mechanism comprises a second driving motor, and the first driving motor and the second driving motor are arranged on the other side of the Y-axis sliding plate through balance weight plates respectively. The weight of the two sides of the Y-axis sliding plate is effectively balanced, unbalance loading borne by the cross beam in the machining process is reduced, stress concentration of the cross beam is reduced, meanwhile, stress of the cross beam and a sliding block and a sliding rail connected with the cross beam is reduced, abrasion and damage of the sliding block and the sliding rail are remarkably reduced, and the service life of the sliding block and the sliding rail is prolonged.

Description

Technical Field

[0001] The present application belongs to the field of numerical control machining equipment, and in particular, relates to a moving column type non-metallic five-axis machining center. Background Art

[0002] The non-metallic five-axis machining center is a five-axis CNC machine tool, which is mainly used for processing non-metallic materials such as wood substitutes, foam, plastic, fiberglass, carbon fiber, etc. It has three main motion axes (X, Y, Z) and two rotation axes (usually A, C or B, C). This structure enables it to process parts with complex curved surfaces. The crossbeam of the five-axis machining center is the supporting structure of the five-axis head, slide, rail and other parts. The common five-axis head, slide and lifting mechanism motor are concentrated on one side of the crossbeam, which will cause the crossbeam to bear a significant eccentric load. This eccentric load not only increases the stress concentration of the crossbeam, but also affects the service life of the rail and slide. Long-term serious eccentric load will also cause the crossbeam to bend and deform, especially when high-speed or heavy-load cutting is performed. This deformation is more obvious. The crossbeam is an important supporting structure of the machining center, and its force is an issue that needs to be paid special attention to. Utility Model Content

[0003] The utility model provides a movable column type non-metallic five-axis machining center, which can at least solve or alleviate one or more technical problems in the prior art, or at least provide a beneficial choice.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A moving column type non-metallic five-axis machining center comprises a machining platform and a gantry structure, wherein two upright columns of the gantry structure are movably installed on both sides of the machining platform, a Y-axis slide is movably provided on the side of the crossbeam of the gantry structure, a Z-axis slide is movably provided on one side of the Y-axis slide, a shaft head assembly with two rotating axes is installed on the Z-axis slide, the Y-axis slide is connected to a translation mechanism, the Z-axis slide is connected to a lifting mechanism, the translation mechanism comprises a first drive motor, the lifting mechanism comprises a second drive motor, the first drive motor and the second drive motor are respectively arranged on the other side of the Y-axis slide through a counterweight plate to balance the weight on both sides of the Y-axis slide and reduce stress concentration on the crossbeam.

[0006] The moving column type non-metallic five-axis machining center of the present application effectively balances the weight on both sides of the Y-axis slide by setting the first drive motor and the second drive motor on the other side of the Y-axis slide through the counterweight plate. This balance not only reduces the eccentric load borne by the crossbeam during the machining process, but also reduces the stress concentration of the crossbeam. The design of the counterweight plate enables the Y-axis slide to remain stable during the movement, reduces unnecessary vibration and errors, thereby improving the stability and machining accuracy of the machining center. At the same time, it reduces the force on the crossbeam and the sliders and slide rails connected to it, significantly reduces the wear and damage of the sliders and slide rails, and extends their service life. Reducing the force on the sliders and slide rails also means reducing the friction and resistance between them. This helps to improve the moving accuracy of the Y-axis slide, and it can also reduce the bending deformation of the crossbeam, especially when performing high-speed or heavy-load cutting, which helps to maintain stable contact between the machining tool and the workpiece, further improving the machining quality and efficiency.

[0007] In a preferred implementation, the counterweight plate includes a fixing plate and a mounting plate which are perpendicular to each other, the fixing plate is detachably connected to the Y-axis slide plate, and the mounting plate is connected to the first drive motor / the second drive motor.

[0008] In a preferred implementation, a motor cover is provided on the outer side of the first drive motor / the second drive motor to protect the motor.

[0009] In a preferred implementation, the crossbeam includes a first rectangular tube, a second rectangular tube and a receiving column vertically connecting the two, and the receiving column is evenly distributed between the first rectangular tube and the second rectangular tube, so as to reduce the load on the column by lightweighting the crossbeam.

[0010] The design of the counterweight plate balances the weight on both sides of the Y-axis slide, reducing the torsional moment of the beam during the Y-axis movement. This balanced design allows the beam to adopt a lighter structure, reducing the load on the column, reducing the deformation and stress of the column when supporting the beam, thereby improving the stability and processing accuracy of the entire machining center. Secondly, the lightweight beam also reduces the overall weight of the equipment, reducing the difficulty and cost of the equipment during transportation, installation and maintenance.

[0011] In a preferred implementation, the lifting mechanism also includes a screw and a moving part. The screw is arranged on the Y-axis slide through a support seat, the moving part is movably arranged on the screw, the moving part is connected to the Z-axis slide, a pulley is provided at one end of the screw, and the output end of the second drive motor is connected to the pulley through a transmission belt.

[0012] In a preferred implementation, the translation mechanism further includes a rack, which is disposed on the top surface of the beam, and the output shaft of the first drive motor is configured with a gear, and the gear and the rack are meshingly connected.

[0013] In a preferred implementation, two Y-axis guide rails are provided in parallel on the side of the beam, the Y-axis guide rails are slidably provided with a Y-axis slider, the Y-axis slider is connected to one side of the Y-axis slider, the Y-axis slider extends two square columns toward the X-axis direction, the square columns are provided with a Z-axis guide rail, the Z-axis guide rails are slidably provided with a Z-axis slider, and the Z-axis slider is connected to the Z-axis slider.

[0014] In a preferred implementation, a number of reinforcing ribs are evenly arranged between the two square columns along the Z-axis direction.

[0015] The square column not only provides stable support for the Z-axis, but also makes the structure more compact. Several reinforcing ribs evenly arranged along the Z-axis direction can greatly enhance the structural strength of the Y-axis guard plate, enabling it to withstand greater loads and impact forces.

[0016] In a preferred implementation, extension plates are provided on both sides of the Y-axis slide plate facing the Y-axis direction, the extension plates are perpendicular to the square columns and connected via triangular receiving plates, and the Y-axis slide block is detachably connected to the extension plates.

[0017] In a preferred implementation, the Z-axis slide is connected to a hollow L-shaped machine head cover, and the shaft head assembly is connected to the L-shaped machine head cover.

[0018] The L-shaped nose cover is designed to be hollow, and the hollow L-shaped nose cover design can significantly reduce the weight of the overall structure, thereby helping to optimize the weight balance of the Y-axis skateboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present application and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 A schematic structural diagram of a schematic implementation scheme of a dynamic column non-metallic five-axis machining center of the present application is depicted;

[0021] Figure 2 A schematic structural diagram of a schematic implementation scheme of the layout of components on both sides of the Y-axis slide of the moving column type non-metallic five-axis machining center of the present application is depicted;

[0022] Figure 3 A schematic structural diagram of a schematic implementation scheme of the dynamic column non-metallic five-axis machining center of the present application from another perspective is depicted;

[0023] Description of labels:

[0024] 10-processing platform; 20-column; 21-crossbeam; 210-first rectangular tube; 211-second rectangular tube; 212-supporting column; 30-Y-axis slide; 31-extension plate; 32-triangular supporting plate; 33-Y-axis guide rail; 34-Y-axis slider; 35-square column; 36-reinforcement rib; 40-Z-axis slide; 41-Z-axis guide rail; 42-Z-axis slider; 50-counterweight plate; 500-fixed plate; 501-mounting plate; 60-shaft head assembly; 61-L-shaped machine head cover; 70-translation mechanism; 700-first drive motor; 701-rack; 80-lifting mechanism; 800-second drive motor; 801-screw; 802-moving part; 803-pulley; 804-transmission belt; 90-motor cover. DETAILED DESCRIPTION

[0025] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are considered to be illustrative and non-restrictive in nature.

[0026] In the description of the present invention, it is necessary to understand that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the present invention, unless otherwise clearly specified and limited, a first feature being "upper" or "lower" than a second feature may be the first and second features directly contacting, or the first and second features indirectly contacting through an intermediate medium.

[0027] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0028] In the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0029] The utility model is described below in conjunction with the accompanying drawings.

[0030] The specific plans adopted are:

[0031] like Figure 1-3 As shown, the utility model provides a moving column type non-metallic five-axis machining center, including a machining platform 10 and a gantry structure, wherein two columns 20 of the gantry structure are movably installed on both sides of the machining platform 10, and a Y-axis skateboard 30 is movably provided on the side of the crossbeam 21 of the gantry structure, and a Z-axis skateboard 40 is movably provided on one side of the Y-axis skateboard 30, and a shaft head assembly 60 with two rotating axes is installed on the Z-axis skateboard 40, the Y-axis skateboard 30 is connected to a translation mechanism 70, and the Z-axis skateboard 40 is connected to a lifting mechanism 80, the translation mechanism 70 includes a first drive motor 700, and the lifting mechanism 80 includes a second drive motor 800, and the first drive motor 700 and the second drive motor 800 are respectively arranged on the other side of the Y-axis skateboard 30 through a counterweight plate 50 to balance the weight on both sides of the Y-axis skateboard 30 and reduce the stress concentration of the crossbeam 21.

[0032] The movable column type non-metallic five-axis machining center of the present application effectively balances the weight on both sides of the Y-axis slide 30 by setting the first drive motor 700 and the second drive motor 800 respectively on the other side of the Y-axis slide 30 through the counterweight plate 50. This balance not only reduces the eccentric load borne by the beam 21 during the machining process, but also reduces the stress concentration of the beam 21. The design of the counterweight plate 50 enables the Y-axis slide 30 to remain stable during the movement, reduces unnecessary vibration and error, thereby improving the stability and machining accuracy of the machining center. At the same time, it reduces the force on the beam 21 and the slider and slide rail connected thereto, significantly reduces the wear and damage of the slider and slide rail, and prolongs their service life. Reducing the force on the slider and slide rail also means reducing the friction and resistance between them. This helps to improve the moving accuracy of the Y-axis slide 30, and it can also reduce the bending deformation of the beam 21, especially when performing high-speed or heavy-load cutting, which helps to maintain stable contact between the machining tool and the workpiece, further improving the machining quality and efficiency.

[0033] As a preferred implementation of the present application, the counterweight plate 50 is composed of a fixing plate 500 and a mounting plate 501 which are perpendicular to each other. The fixing plate 500 is detachably connected to the Y-axis slide 30, and the mounting plate 501 is used to connect the first drive motor 700 or the second drive motor 800. The position and weight of the counterweight plate 50 can be adjusted according to actual needs to accurately balance the weight and torque on both sides of the Y-axis slide 30. When the weight and torque on both sides of the Y-axis slide 30 are approximately balanced, the torque difference on both sides of the Y-axis slide 30 is minimized, and the Y-axis slide 30 will be more stable and precise during movement.

[0034] As a preferred embodiment of the present embodiment, a motor cover 90 is disposed outside the first drive motor 700 / second drive motor 800. The motor cover 90, as a protective layer outside the motor, can effectively prevent external objects, such as dust, debris, rain and snow, from directly contacting and possibly damaging the motor. This protection can ensure that the motor can still work normally in a harsh environment and extend its service life. The motor cover 90 itself has a certain weight, which can be used as part of the counterweight, which helps to more accurately adjust the counterweight balance on both sides of the Y-axis slide 30.

[0035] As a preferred embodiment of the present application, the crossbeam 21 includes a first rectangular tube 210, a second rectangular tube 211 and a receiving column 212 vertically connecting the two. The receiving column 212 is evenly distributed between the first rectangular tube 210 and the second rectangular tube 211. The design of the counterweight plate 50 balances the weight on both sides of the Y-axis slide 30, reducing the torsional moment of the crossbeam 21 during the Y-axis movement. This balanced design allows the crossbeam 21 to adopt a lighter structure. The first rectangular tube 210 and the second rectangular tube 211 are the main bearing structures of the crossbeam 21, responsible for bearing various loads during the processing. The receiving column 212 is evenly distributed between the first rectangular tube 210 and the second rectangular tube 211, which not only enhances the overall rigidity and stability of the crossbeam 21, but also further reduces the weight of the crossbeam 21 through its structural design, reduces the load on the column 20, and reduces the deformation and stress of the column 20 when supporting the crossbeam 21, thereby improving the stability and processing accuracy of the entire machining center. Secondly, the lightweight crossbeam 21 also reduces the overall weight of the equipment, thereby reducing the difficulty and cost of transportation, installation and maintenance of the equipment.

[0036] See also Figure 3The lifting mechanism 80 also includes a screw 801 and a moving part 802. The screw 801 is arranged on the Y-axis slide 30 through a support seat, and the moving part 802 is movably arranged on the screw 801. The moving part 802 is connected to the Z-axis slide 40. A pulley 803 is provided at one end of the screw 801. The output end of the second drive motor 800 is connected to the pulley 803 through a transmission belt 804. The design of the lifting mechanism 80 takes into account the overall stability. The screw 801 is firmly installed on the Y-axis slide 30 through the support seat to avoid shaking and instability during the lifting process. At the same time, the cooperation between the screw 801 and the moving part 802 ensures the stability and accuracy of the lifting movement. The motor and the pulley 803 of the screw 801 are connected by the transmission belt 804, so that the power can be smoothly transmitted. The transmission belt 804 has good elasticity and wear resistance, and can adapt to the working conditions of high-speed movement and frequent start and stop.

[0037] See also Figure 2 The translation mechanism 70 further includes a rack 701, which is disposed on the top surface of the beam 21. The output shaft of the first drive motor 700 is provided with a gear, which is meshed with the rack 701. The meshing connection between the gear and the rack 701 provides a smooth and precise transmission. Since the teeth on the rack 701 are evenly distributed, when the gear rotates, the Y-axis slide 30 can translate according to a fixed step distance to achieve high-precision positioning.

[0038] See also Figure 3 Two Y-axis guide rails 33 are parallelly arranged on the side of the crossbeam 21, and a Y-axis slider 34 is slidably arranged on the Y-axis guide rail 33. The Y-axis slider 34 is connected to one side of the Y-axis slide plate 30. The Y-axis slide plate 30 extends two square columns 35 toward the X-axis direction. The square columns 35 are provided with a Z-axis guide rail 41. The Z-axis guide rail 41 is slidably provided with a Z-axis slider 42. The Z-axis slider 42 is connected to the Z-axis slide plate 40. A number of reinforcing ribs 36 are evenly arranged along the Z-axis direction between the two square columns 35. The square columns 35 not only provide stable support for the Z-axis, but also make the structure more compact. The number of reinforcing ribs 36 evenly arranged along the Z-axis direction can greatly enhance the structural strength of the Y-axis guard plate, so that it can withstand greater loads and impact forces.

[0039] Furthermore, extension plates 31 are provided on both sides of the Y-axis skateboard 30 facing the Y-axis direction. The extension plates 31 are perpendicular to the square columns 35 and are connected by triangular receiving plates 32. The Y-axis slider 34 is detachably connected to the extension plates 31. The extension plates 31 are perpendicular to the square columns 35 on both sides of the Y-axis skateboard 30 and are connected by triangular receiving plates 32, forming a stable triangular structure. This structure greatly enhances the structural strength of the Y-axis skateboard 30. The design of the extension plates 31 allows the Y-axis slider 34 to be detachably connected thereto, making the assembly, debugging and maintenance of the machine tool more convenient.

[0040] In a preferred implementation, the Z-axis slide 40 is connected to a hollow L-shaped machine head cover 61 , and the shaft head assembly 60 is connected to the L-shaped machine head cover 61 .

[0041] The Z-axis slide 40 is connected to the L-shaped head cover 61 (such as by bolts, welding or other connection methods) to form an integral structure. This integral structure will be suspended on the Y-axis slide 30, so its weight will affect the balance of the Y-axis slide 30. The L-shaped head cover 61 is designed to be hollow, and the hollow L-shaped head cover 61 design can significantly reduce the weight of the overall structure, thereby helping to optimize the weight balance of the Y-axis slide 30. The modular design between the L-shaped head cover 61 and the Z-axis slide 40 makes maintenance and replacement of parts easier. When the shaft head assembly 60 needs to be repaired or replaced, the L-shaped head cover 61 can be removed separately without large-scale disassembly of the entire Y-axis slide 30. This reduces downtime and maintenance costs.

[0042] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0043] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A movable column type non-metallic five-axis machining center, comprising a machining platform and a gantry structure, wherein two columns of the gantry structure are movably mounted on both sides of the machining platform, characterized in that: A Y-axis slide is provided on the side of the crossbeam of the gantry structure for movement, a Z-axis slide is provided on one side of the Y-axis slide for movement, a shaft head assembly with two rotating shafts is installed on the Z-axis slide, the Y-axis slide is connected to the translation mechanism, the Z-axis slide is connected to the lifting mechanism, the translation mechanism includes a first drive motor, the lifting mechanism includes a second drive motor, the first drive motor and the second drive motor are respectively arranged on the other side of the Y-axis slide through a counterweight plate to balance the weight on both sides of the Y-axis slide and reduce the stress concentration of the crossbeam; The counterweight plate includes a fixing plate and a mounting plate which are perpendicular to each other, the fixing plate is detachably connected to the Y-axis slide plate, and the mounting plate is connected to the first drive motor / the second drive motor; The crossbeam includes a first rectangular tube, a second rectangular tube and a receiving column vertically connecting the two, and the receiving column is evenly distributed between the first rectangular tube and the second rectangular tube, so as to reduce the load on the column by using a lightweight crossbeam.

2. A moving column type non-metallic five-axis machining center according to claim 1, characterized in that: A motor cover is arranged outside the first driving motor / the second driving motor to protect the motor.

3. The movable column non-metallic five-axis machining center according to claim 1, characterized in that: The lifting mechanism also includes a screw and a moving part. The screw is arranged on the Y-axis slide through a support seat, the moving part is movably arranged on the screw, the moving part is connected to the Z-axis slide, a pulley is arranged at one end of the screw, and the output end of the second drive motor is connected to the pulley through a transmission belt.

4. The movable column non-metallic five-axis machining center according to claim 1, characterized in that: The translation mechanism also includes a rack, which is arranged on the top surface of the beam. The output shaft of the first drive motor is configured with a gear, and the gear and the rack are meshed and connected.

5. The movable column type non-metallic five-axis machining center according to claim 1, characterized in that: Two Y-axis guide rails are arranged in parallel on the side of the crossbeam, and a Y-axis slider is arranged on the Y-axis guide rail for sliding, and the Y-axis slider is connected to one side of the Y-axis slide plate, and two square columns are extended from the Y-axis slide plate toward the X-axis direction, and a Z-axis guide rail is arranged on the square column for sliding, and a Z-axis slider is arranged on the Z-axis guide rail for sliding, and the Z-axis slider is connected to the Z-axis slide plate.

6. The movable column type non-metallic five-axis machining center according to claim 5, characterized in that: A number of reinforcing ribs are evenly arranged between the two square columns along the Z-axis direction.

7. The movable column non-metallic five-axis machining center according to claim 5, characterized in that: Extension plates are provided on both sides of the Y-axis slide plate facing the Y-axis direction. The extension plates are perpendicular to the square column and connected through a triangular receiving plate. The Y-axis slide block is detachably connected to the extension plates.

8. The moving column type non-metallic five-axis machining center according to claim 1, characterized in that: The Z-axis slide plate is connected to the hollow L-shaped machine head cover, and the shaft head assembly is connected to the L-shaped machine head cover.

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