Cross beam unloading structure of overbridge type planer type milling machine
By designing the unloading structure on the cross beam of the overpass gantry milling machine, the weight of the Y-axis moving parts is transferred to the unloading beam, the problem of large deformation of the cross beam guide rail structure is solved, and better maintaining the cross beam accuracy is achieved.
Patent Information
- Application Number
- CN202422092877.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-28
AI Technical Summary
The existing cross-bridge gantry milling machine beam structure directly acts on the cross-bridge guide rail due to all forces acting directly on the cross-bridge guide rail, which is not conducive to maintaining the cross-bridge precision, especially in the case of heavy duty and large strokes, the impact is more prominent.
By designing the unloading structure on the cross beam of the overpass gantry milling machine, the weight of the Y-axis moving parts is transmitted to the unloading beam through the hydraulic cylinder, the mounting seat and the roller, and most of the force is borne by the unloading beam, thereby reducing the forces borne by the first guide rail, the second guide rail and the third guide rail.
Most of the force of this design is dispersed on the unloading beam, reducing the deformation of the first guide rail, the second guide rail and the third guide rail, so that the horizontal movement of the Y-axis moving parts does not affect the linear accuracy of the guide rail, and solving the problem of large deformation of the beam guide rail structure.
Smart Images
Figure CN222944957U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of gantry lathes, and more specifically, particularly relates to a crossbeam unloading structure of an overpass type gantry milling machine. Background Art
[0002] The gravity of the tool holder and the crossbeam slide and the reaction force of the feed force during cutting act directly on the crossbeam guide rail. In the process of the tool holder moving away from the column, a cantilever with an increasingly larger force arm is gradually formed. The heavier the tool holder, the greater the cutting force and the longer the stroke. The greater the bending moment directly borne by the crossbeam guide rail, the greater the deformation of the crossbeam, which affects the linear accuracy of the horizontal movement of the crossbeam slide. For heavy-duty, long-stroke overhead bridge gantry milling machines, this deformation effect is more prominent. Therefore, it is particularly important to propose a practical improvement plan. The existing crossbeam of the overhead bridge gantry milling machine adopts a crossbeam structure similar to that of an ordinary CNC lathe. All forces act directly on the crossbeam guide rail, and the deformation of the crossbeam guide rail structure is large, which is not conducive to maintaining the accuracy of the crossbeam. Therefore, a crossbeam unloading structure for an overhead bridge gantry milling machine is proposed. Utility Model Content
[0003] In view of the deficiencies in the prior art, the utility model provides a crossbeam unloading structure for a bridge-type gantry milling machine. The weight of the Y-axis moving component is transmitted to the unloading beam through a hydraulic cylinder, a mounting seat and a roller. Most of the force is borne by the unloading beam, thereby reducing the force borne by the first guide rail, the second guide rail and the third guide rail. This solves the problem that the existing crossbeam of a bridge-type gantry milling machine proposed in the above background technology adopts a crossbeam structure similar to that of an ordinary CNC lathe, all forces act directly on the crossbeam guide rail, the crossbeam guide rail structure is greatly deformed, and it is not conducive to maintaining the accuracy of the crossbeam.
[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions: a crossbeam unloading structure of a bridge-type gantry milling machine includes a crossbeam component and a Y-axis moving component, a first guide rail is fixed to the upper front part of the crossbeam component, a first slide is slidably connected to the outer side of the first guide rail, one side of the first slide is fixedly connected to the outer side of the Y-axis moving component, a second guide rail is fixed to the middle front part of the crossbeam component, a second slide is slidably connected to the outer side of the second guide rail, one side of the second slide is fixedly connected to the outer side of the Y-axis moving component, a screw rod component is also fixed to the middle front part of the crossbeam component, a moving seat is threadedly connected to the outer side of the screw rod component, one side of the moving seat is fixedly connected to the outer side of the Y-axis moving component, and a lower front part of the crossbeam component is fixed to the lower front part of the crossbeam component. A third guide rail is fixed, and a third slider is slidably connected to the outer side of the third guide rail, and one side of the third slider is fixedly connected to the outer side of the Y-axis moving component. A first mounting groove is also provided on the upper outer side of the crossbeam component, and two unloading beam supports are fixed to the inner side of the first mounting groove, and an unloading beam is fixed between the two unloading beam supports. Two second mounting grooves are provided on the top surface of the Y-axis moving component, and hydraulic cylinders are fixed to the inner sides of the two second mounting grooves, and mounting seats are fixed to the lower ends of the two hydraulic cylinders, and two fixed grooves are provided on both sides of the two mounting seats, and a connecting plate is fixed between the two opposite fixed grooves, and two rollers are rotatably connected to the inner side of the mounting seat, and the circumferential outer sides of the rollers are fixedly connected to the top surface of the unloading beam.
[0005] As a preferred technical solution of the present utility model, the screw rod component is parallel to the second guide rail.
[0006] As a preferred technical solution of the present utility model, the first guide rail is parallel to the second guide rail and the crossbeam component.
[0007] As a preferred technical solution of the present utility model, the second guide rail is parallel to the third guide rail.
[0008] As a preferred technical solution of the present utility model, the screw rod component is located below the screw rod component.
[0009] As a preferred technical solution of the utility model, the unloading beam is parallel to the first guide rail.
[0010] As a preferred technical solution of the utility model, the hydraulic cylinder is perpendicular to the unloading beam, and the connecting plate is parallel to the unloading beam.
[0011] The utility model provides a crossbeam unloading structure for a bridge-type gantry milling machine, which has the following beneficial effects:
[0012] 1. The crossbeam unloading structure of the overpass type gantry milling machine has most of the forces dispersed on the unloading beam 9, which bears most of the weight of the Y-axis moving component 2. The deformation of the first guide rail 3, the second guide rail 4 and the third guide rail 6 is replaced by the bending deformation of the unloading beam 9, and the load borne by the first guide rail 3, the second guide rail 4 and the third guide rail 6 remains basically unchanged, thereby reducing the deformation of the first guide rail 3, the second guide rail 4 and the third guide rail 6, so that the horizontal movement of the Y-axis moving component 2 basically does not affect the linear accuracy of the first guide rail 3, the second guide rail 4 and the third guide rail 6, thereby solving the problem that all forces act directly on the crossbeam guide rail, the crossbeam guide rail structure is greatly deformed, and it is not conducive to maintaining the crossbeam accuracy.
[0013] 2. The crossbeam unloading structure of the bridge-type gantry milling machine has a reasonable and compact structural design and good use effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The utility model is a three-dimensional structural schematic diagram of the crossbeam unloading structure of the overpass type gantry milling machine.
[0015] Figure 2 The utility model is a crossbeam unloading structure of a bridge type gantry milling machine Figure 1 A is an enlarged schematic diagram.
[0016] Figure 3 The utility model is a schematic diagram of the top view of the crossbeam unloading structure of the overpass type gantry milling machine.
[0017] Figure 4 It is a front view structural schematic diagram of the crossbeam unloading structure of the utility model overpass type gantry milling machine.
[0018] Figure 5 The utility model is a schematic side view of the crossbeam unloading structure of the overhead bridge type gantry milling machine.
[0019] Figure 6 The utility model is a schematic diagram of the cross-beam component and the Y-axis moving component of the cross-beam unloading structure of the overhead bridge type gantry milling machine.
[0020] Figure 7 The utility model is a crossbeam unloading structure of a bridge type gantry milling machine Figure 6 The enlarged schematic diagram of point B in FIG.
[0021] In the figure: 1. beam component; 2. Y-axis moving component; 3. first guide rail; 4. second guide rail; 5. screw rod component; 6. third guide rail; 7. first mounting groove; 8. unloading beam support; 9. unloading beam; 10. second mounting groove; 11. hydraulic cylinder; 12. mounting seat; 13. connecting plate; 14. roller; 15. fixed groove; 16. first slide; 17. second slide block; 18. third slide block. DETAILED DESCRIPTION
[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0023] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0025] See also Figures 1 to 7The utility model provides a technical solution: a crossbeam unloading structure of a bridge-type gantry milling machine, comprising a crossbeam component 1 and a Y-axis moving component 2, a first guide rail 3 is fixed to the upper front part of the crossbeam component 1, a first slide 16 is slidably connected to the outer side of the first guide rail 3, one side of the first slide 16 is fixedly connected to the outer side of the Y-axis moving component 2, a second guide rail 4 is fixed to the middle front part of the crossbeam component 1, a second slide block 17 is slidably connected to the outer side of the second guide rail 4, one side of the second slide block 17 is fixedly connected to the outer side of the Y-axis moving component 2, a screw rod component 5 is also fixed to the middle front part of the crossbeam component 1, a moving seat is threadedly connected to the outer side of the screw rod component 5, one side of the moving seat is fixedly connected to the outer side of the Y-axis moving component 2, a third guide rail 6 is fixed to the lower front part of the crossbeam component 1, a third slide block 18 is slidably connected to the outer side of the third guide rail 6, one side of the third slide block 18 is fixedly connected to the outer side of the Y-axis moving component 2, and a first mounting groove is also provided on the upper outer side of the crossbeam component 1 7. Two unloading beam supports 8 are fixed on the inner side of the first mounting groove 7, and an unloading beam 9 is fixed between the two unloading beam supports 8. Two second mounting grooves 10 are provided on the top surface of the Y-axis moving component 2. Hydraulic cylinders 11 are fixed on the inner sides of the two second mounting grooves 10. Mounting seats 12 are fixed on the lower ends of the two hydraulic cylinders 11. Two fixing grooves 15 are provided on both sides of the two mounting seats 12. A connecting plate 13 is fixed between the two opposite fixing grooves 15. Two rollers 14 are rotatably connected to the inner side of the mounting seat 12. The outer circumference of the roller 14 is fixedly connected to the top surface of the unloading beam 9. The screw component 5 is parallel to the second guide rail 4, the first guide rail 3 is parallel to the second guide rail 4 and the cross beam component 1, and the second guide rail 4 is parallel to the third guide rail 6. The screw component 5 is located below the screw component 5. The unloading beam 9 is parallel to the first guide rail 3, the hydraulic cylinder 11 is perpendicular to the unloading beam 9, and the connecting plate 13 is parallel to the unloading beam 9.
[0026] The Y-axis moving component 2 is driven to move along the crossbeam component 1 by the moving seat on the screw component 5, and the first slide 16, the second slide block 17 and the third slide block 18 on the Y-axis moving component 2 slide along the first guide rail 3, the second guide rail 4 and the third guide rail 6 respectively. In this process, the weight of the Y-axis moving component 2 is transmitted to the unloading beam 9 through the hydraulic cylinder 11, the mounting seat 12 and the roller 14, and most of the force is borne by the unloading beam 9, thereby reducing the force borne by the first guide rail 3, the second guide rail 4 and the third guide rail 6, so that the action point of the weight of the Y-axis moving component 2 is not concentrated on the first guide rail 3, the second guide rail 4 and the third guide rail 6. Most of the force is dispersed on the unloading beam 9, which bears most of the weight of the Y-axis moving component 2. The deformation of the first guide rail 3, the second guide rail 4 and the third guide rail 6 is replaced by the bending deformation of the unloading beam 9, and the load borne by the first guide rail 3, the second guide rail 4 and the third guide rail 6 remains basically unchanged, thereby reducing the deformation of the first guide rail 3, the second guide rail 4 and the third guide rail 6, so that the horizontal movement of the Y-axis moving component 2 basically does not affect the linear accuracy of the first guide rail 3, the second guide rail 4 and the third guide rail 6, thereby solving the problem that all forces act directly on the beam guide, the beam guide structure is greatly deformed, and it is not conducive to maintaining the beam accuracy.
[0027] Specific usage and function of this embodiment: The utility model drives the Y-axis moving component 2 to move along the crossbeam component 1 through the moving seat on the screw component 5, and the first slide 16, the second slide block 17 and the third slide block 18 on the Y-axis moving component 2 slide along the first guide rail 3, the second guide rail 4 and the third guide rail 6 respectively. In this process, the weight of the Y-axis moving component 2 is transmitted to the unloading beam 9 through the hydraulic cylinder 11, the mounting seat 12 and the roller 14, and most of the force is borne by the unloading beam 9, thereby reducing the force borne by the first guide rail 3, the second guide rail 4 and the third guide rail 6, so that the Y-axis moving component The weight of the component 2 does not act concentratedly on the first guide rail 3, the second guide rail 4 and the third guide rail 6, but most of the force is dispersed on the unloading beam 9, which bears most of the weight of the Y-axis moving component 2. The deformation of the first guide rail 3, the second guide rail 4 and the third guide rail 6 is replaced by the bending deformation of the unloading beam 9, and the load borne by the first guide rail 3, the second guide rail 4 and the third guide rail 6 remains basically unchanged, thereby reducing the deformation of the first guide rail 3, the second guide rail 4 and the third guide rail 6, so that the horizontal movement of the Y-axis moving component 2 basically does not affect the linear accuracy of the first guide rail 3, the second guide rail 4 and the third guide rail 6.
[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A crossbeam unloading structure for a bridge-type gantry milling machine, comprising a crossbeam component (1) and a Y-axis moving component (2), characterized in that: A first guide rail (3) is fixed to the upper front part of the crossbeam component (1), a first slide (16) is slidably connected to the outer side of the first guide rail (3), one side of the first slide (16) is fixedly connected to the outer side of the Y-axis moving component (2), a second guide rail (4) is fixed to the middle front part of the crossbeam component (1), a second slider (17) is slidably connected to the outer side of the second guide rail (4), one side of the second slider (17) is fixedly connected to the outer side of the Y-axis moving component (2), a screw rod component (5) is also fixed to the middle front part of the crossbeam component (1), a moving seat is threadedly connected to the outer side of the screw rod component (5), one side of the moving seat is fixedly connected to the outer side of the Y-axis moving component (2), a third guide rail (6) is fixed to the lower front part of the crossbeam component (1), a third slider (18) is slidably connected to the outer side of the third guide rail (6), the third slider ( One side of the cross beam component (18) is fixedly connected to the outer side of the Y-axis moving component (2); a first mounting groove (7) is also provided on the upper outer side of the cross beam component (1); two unloading beam supports (8) are fixed on the inner side of the first mounting groove (7); a unloading beam (9) is fixed between the two unloading beam supports (8); two second mounting grooves (10) are provided on the top surface of the Y-axis moving component (2); hydraulic cylinders (11) are fixed on the inner sides of the two second mounting grooves (10); mounting seats (12) are fixed at the lower ends of the two hydraulic cylinders (11); two fixing grooves (15) are provided on both sides of the two mounting seats (12); a connecting plate (13) is fixed between the two opposite fixing grooves (15); two rollers (14) are rotatably connected to the inner side of the mounting seat (12); the circumferential outer sides of the rollers (14) are fixedly connected to the top surface of the unloading beam (9).
2. The crossbeam unloading structure of the overhead bridge type gantry milling machine according to claim 1 is characterized in that: The screw rod component (5) is parallel to the second guide rail (4).
3. The crossbeam unloading structure of the overhead bridge type gantry milling machine according to claim 1 is characterized in that: The first guide rail (3) is parallel to the second guide rail (4) and the crossbeam component (1).
4. The crossbeam unloading structure of the overhead bridge type gantry milling machine according to claim 1 is characterized in that: The second guide rail (4) and the third guide rail (6) are parallel to each other.
5. The crossbeam unloading structure of the overhead bridge type gantry milling machine according to claim 1 is characterized in that: The screw rod component (5) is located below the screw rod component (5).
6. The crossbeam unloading structure of the overhead bridge type gantry milling machine according to claim 1 is characterized in that: The unloading beam (9) is parallel to the first guide rail (3).
7. The crossbeam unloading structure of the overhead bridge type gantry milling machine according to claim 1 is characterized in that: The hydraulic cylinder (11) and the unloading beam (9) are perpendicular to each other, and the connecting plate (13) and the unloading beam (9) are parallel to each other.