Symmetrical X-axis moving structure

Abstract

The utility model discloses a symmetrical X-axis moving structure which comprises a rack, a cross beam and two X-axis linear motor driving mechanisms, the rack comprises two side frames which are oppositely arranged, the two X-axis linear motor driving mechanisms are symmetrically arranged on the two side frames, and the two ends of the cross beam are correspondingly connected with the two X-axis linear motor driving mechanisms. The X-axis linear motor driving mechanism comprises an X-axis linear rail, an X-axis sliding seat, an X-axis linear motor plate and an X-axis linear motor module, the X-axis linear motor plate is mounted on a rotor seat of the X-axis linear motor module, and the end surface of the end part of the cross beam is mounted with the X-axis linear motor plate; according to the utility model, the structural design is reasonable, the two X-axis linear motor driving mechanisms adopt a relative structural design, and the cross beam is stretched while being driven to move in the X-axis direction, so that the cross beam bears a certain transverse stretching force, the deformation of the middle part of the cross beam caused by the weight of a bearing main shaft part is effectively reduced, and the machining precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining centers, and particularly relates to a symmetrical X-axis moving structure applied to a machining center. Background Art

[0002] In recent years, multi-axis linkage CNC machining centers have been more and more widely used in various fields to meet the requirements of high-efficiency and high-quality production and machining. The cutting tools used on machining centers are generally selected according to factors such as the material, geometric shape, surface quality requirements, cutting performance, and machining allowance of the workpiece to be machined, and then appropriate machining methods are adopted.

[0003] However, at present, the X-axis moving structures on machining centers mostly use an X-axis motor in combination with an X-axis lead screw pair or a rack structure for driving. For example, the utility model with the publication number "CN115647837A" and the name "A large-span gantry machining center with a main and auxiliary crossbeam structure" discloses a large-span gantry machining center with a main and auxiliary crossbeam structure, including two parallel bases on both sides. It is characterized in that the beds are fixed on both bases, the X-axis guide rails are arranged on the beds, the X-axis sliders are arranged in cooperation with the X-axis guide rails, and a slide base is connected to the X-axis sliders, and the slide base can move in the X-axis direction along the X-axis guide rails. An X-axis rack is arranged on the bed, and an X-axis motor and an X-axis speed reducer that are cooperatively connected are arranged through the main beam. The X-axis motor and the X-axis speed reducer are both connected to the slide base, and the X-axis speed reducer cooperates with the X-axis rack to drive the slide base to move along the X-axis. Although it can achieve the purpose of driving the slide base to move along the X-axis, there are components such as a Z-axis moving mechanism and a spindle installed on the crossbeam, and the gravity of these components will cause the middle position of the crossbeam to bend downward and generate a certain deformation, thereby affecting the machining accuracy. Therefore, it is necessary to develop an X-axis moving structure that can reduce the deformation of the crossbeam. Summary of the Utility Model

[0004] Aiming at the above deficiencies, the purpose of the present utility model is to provide a symmetrical X-axis moving structure with reasonable structural design and capable of reducing the deformation of the crossbeam.

[0005] To achieve the above purpose, the technical solution provided by the present utility model is:

[0006] A symmetrical X-axis moving structure, which includes a frame, a crossbeam, and two X-axis linear motor driving mechanisms. The frame includes two relatively arranged side frames, and the two X-axis linear motor driving mechanisms are symmetrically arranged on the two side frames. The two ends of the crossbeam are correspondingly connected to the two X-axis linear motor driving mechanisms. The structural design of the two relatively arranged X-axis linear motor driving mechanisms enables the crossbeam to bear a transverse tensile force, effectively reducing the deformation of the crossbeam and improving the machining accuracy.

[0007] As a preferred embodiment of the present utility model, the X-axis linear motor driving mechanism includes an X-axis linear guide, an X-axis slide, an X-axis linear motor plate, and an X-axis linear motor module. A horizontal mounting surface extending along the long side direction is provided on the side frame. A raised seat is provided on one side of the horizontal mounting surface. A vertical mounting surface is provided on the side wall of the raised seat close to the horizontal mounting surface. The X-axis linear guide is arranged on the horizontal mounting surface. The X-axis slide is arranged on the bottom surface of the end of the cross beam and is adapted to the X-axis linear guide. The X-axis linear motor module is arranged on the vertical mounting surface. The X-axis linear motor plate is mounted on the mover seat of the X-axis linear motor module. The end face of the cross beam is mounted on the X-axis linear motor plate, and the installation is simple and convenient.

[0008] As a preferred embodiment of the present utility model, a limiting rib is provided at the bottom of the vertical mounting surface. A reinforcing boss is provided at the connection between the raised seat and the side frame. A reinforcing rib is provided between the reinforcing boss and the horizontal mounting surface, which can enhance the structural strength of the side frame.

[0009] As a preferred embodiment of the present utility model, a plurality of reinforcing ribs extending along the long side direction are provided on the cross beam. A reinforcing side rib is provided at the back side edge of the cross beam. A reinforcing middle rib is provided at the center position of the back of the cross beam, which effectively increases the structural strength of the cross beam.

[0010] The beneficial effects of the present utility model are as follows: The structure of the present utility model is reasonably designed. The two X-axis linear motor driving mechanisms adopt a relative structure design. When driving the cross beam to move in the X-axis direction, the cross beam is simultaneously stretched, enabling the cross beam to bear a certain lateral tensile force. Thereby, the deformation of the middle part of the cross beam caused by the weight of the load-bearing main shaft components is effectively reduced, and the processing accuracy is improved.

[0011] The present utility model will be further described below in conjunction with the drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the front view structural schematic diagram of the present utility model.

[0013] Figure 2 is the three-dimensional structural schematic diagram of the present utility model.

[0014] Figure 3 is the exploded structural schematic diagram of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] See Figures 1 to 3 , a symmetric X-axis moving structure provided in this embodiment includes a frame, a cross beam 2, and two X-axis linear motor driving mechanisms 3.

[0016] The frame includes two relatively arranged side frames 1, and two X-axis linear motor driving mechanisms 3 are symmetrically arranged on the two side frames 1. The two ends of the cross beam 2 are correspondingly connected to the two X-axis linear motor driving mechanisms 3. The structural design of the two opposite X-axis linear motor driving mechanisms 3 enables the cross beam 2 to bear transverse tensile force, effectively reducing the deformation of the cross beam 2 and improving the machining accuracy.

[0017] Specifically, the X-axis linear motor driving mechanism 3 includes an X-axis guide rail 31, an X-axis slide block 32, an X-axis linear motor plate 33, and an X-axis linear motor module 34. A horizontal mounting surface 11 extending along the long side direction is provided on the side frame 1. A raised seat 12 is provided on one side of the horizontal mounting surface 11. A vertical mounting surface 13 is provided on the side wall of the raised seat 12 close to the horizontal mounting surface 11. The X-axis guide rail 31 is arranged on the horizontal mounting surface 11. The X-axis slide block 32 is arranged on the bottom surface of the end of the cross beam 2 and is adapted to the X-axis guide rail 31. The X-axis linear motor module 34 is arranged on the vertical mounting surface 13. The X-axis linear motor plate 33 is mounted on the mover seat of the X-axis linear motor module 34. The end face of the cross beam 2 is mounted on the X-axis linear motor plate 33, and the installation is simple and convenient. Preferably, a limiting rib 14 is provided at the bottom of the vertical mounting surface 13, which is convenient for quickly positioning and installing the X-axis linear motor module 34 and also increases the structural strength. A reinforcing boss 15 is provided at the connection between the raised seat 12 and the side frame 1. A reinforcing rib 16 is provided between the reinforcing boss 15 and the horizontal mounting surface 11. Through the reinforcing boss 15 and the reinforcing rib 16, the structural strength and load-bearing capacity of the side frame 1 can be effectively increased, and the durability and reliability of the machining center are improved.

[0018] Preferably, a number of reinforcing ribs extending along the long side direction are provided on the cross beam 2, which can improve the structural stability and load-bearing capacity of the cross beam 2. A reinforcing side rib is provided on the back side edge of the cross beam 2, and a reinforcing middle rib is provided at the center position of the back of the cross beam 2. Through the reinforcing side rib and the reinforcing middle rib, the rigidity and stability of the cross beam 2 can be significantly improved, and the vibration and deformation during the machining process can be reduced. In addition, a lower pull position can be provided at the middle position of the bottom surface of the cross beam 2, and upper pull positions can be provided at the upper corners on both sides of the cross beam 2. The upper pull positions and the lower pull position are connected by a pull rod. The bottom middle position of the cross beam 2 is pulled and stabilized by the pull rod, further reducing the deformation of the cross beam 2 and improving the machining accuracy.

[0019] During operation, the X-axis linear motor modules 34 at both sides can drive the crossbeam 2 to move in the X-axis direction. The X-axis linear motor module 34 includes a stator component and a mover component. The stator component includes an iron core and a coil. When an electric current is applied, the stator component generates a magnetic field. The mover component includes a mover seat and a magnet fixedly arranged with the mover seat. When the magnetic field generated by the stator component acts on the moving component, the magnet is subjected to a magnetic suction force and drives the mover seat to move along the X-axis direction. At the same time, the magnetic suction force also has a certain magnitude of lateral force F 拉 , so that the crossbeam 2 bears a lateral tensile force, effectively reducing the deformation of the middle part of the crossbeam 2 caused by the weight G 重力 of components such as the load-bearing main shaft, thereby improving the machining accuracy of the machining center.

[0020] According to the disclosure and teachings of the above specification, those skilled in the art of the present utility model can also make changes and modifications to the above embodiments. Therefore, the present utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present utility model should also fall within the protection scope of the claims of the present utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model. As described in the above embodiments of the present utility model, other machining centers obtained by adopting the same or similar structures are within the protection scope of the present utility model.

Claims

1. A symmetrical X-axis moving structure, comprising a frame, characterized in that: It also includes a crossbeam and two X-axis linear motor drive mechanisms, the frame includes two oppositely arranged side frames, the two X-axis linear motor drive mechanisms are symmetrically arranged on the two side frames, and the two ends of the crossbeam are correspondingly connected to the two X-axis linear motor drive mechanisms; The X-axis linear motor drive mechanism includes an X-axis line rail, an X-axis slide, an X-axis linear motor plate and an X-axis linear motor module. The side frame is provided with a horizontal mounting surface extending along its long side direction, a raised seat is provided on one side of the horizontal mounting surface, and a vertical mounting surface is provided on the side wall of the raised seat close to the horizontal mounting surface. The X-axis line rail is arranged on the horizontal mounting surface, the X-axis slide is arranged on the end bottom surface of the beam and is matched with the X-axis line rail, the X-axis linear motor module is arranged on the vertical mounting surface, the X-axis linear motor plate is installed on the mover seat of the X-axis linear motor module, and the end surface of the end of the beam is installed with the X-axis linear motor plate.

2. The symmetrical X-axis moving structure according to claim 1, characterized in that: A limiting convex strip is provided at the bottom of the vertical installation surface.

3. The symmetrical X-axis moving structure according to claim 1, characterized in that: A reinforcing boss is provided at the connection between the raised seat and the side frame.

4. The symmetrical X-axis moving structure according to claim 3, characterized in that: A reinforcing convex strip is provided between the reinforcing boss and the horizontal mounting surface.

5. The symmetrical X-axis moving structure according to claim 3, characterized in that: The crossbeam is provided with a plurality of reinforcing ribs extending along the long side direction thereof.

6. The symmetrical X-axis moving structure according to claim 1, characterized in that: The back side edge of the cross beam is provided with reinforcing side ribs.

7. The symmetrical X-axis moving structure according to claim 1, characterized in that: A reinforcing rib is provided at the center of the back side of the crossbeam.

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