Three-axis numerical control horizontal milling machine

Abstract

The utility model provides a three-axis numerical control horizontal milling machine, and relates to the technical field of three-axis numerical control horizontal milling machines, the three-axis numerical control horizontal milling machine comprises a machine body and a suspension beam, an adapter plate is arranged between the machine body and the suspension beam, the adapter plate is installed on the machine body, the upper surface of the adapter plate is provided with a dovetail groove, the lower surface of the suspension beam is provided with a boss, and the dovetail groove is connected with the boss. When the cantilever beam is placed on the adapter plate, the boss is located in the dovetail groove, a plug block is arranged between the boss and the dovetail groove, a through groove is formed in the adapter plate, a through hole and a blind hole are formed in the two sides of the through groove respectively, an internal thread is arranged in the blind hole, the adapter plate further comprises a screw used for penetrating through the through hole, and the screw is rotationally connected with the through hole. When the three-axis numerical control horizontal milling machine is assembled, the adapter plate in the three-axis numerical control horizontal milling machine can be independently polished, so that the height of the cantilever beam and the height of the hanging bracket are conveniently adjusted, the machine body does not need to be directly polished, and the convenience of the milling machine in the assembling process is improved.

Description

Technical Field

[0001] This utility model relates to the field of three-axis CNC horizontal milling machine technology, specifically a three-axis CNC horizontal milling machine. Background Technology

[0002] A three-axis CNC horizontal milling machine is a commonly used machining equipment. It has three linear motion degrees of freedom along the X, Y, and Z axes, enabling it to realize complex machining paths in space. The spindle is located in a horizontal position, and the workpiece is usually placed on a worktable or fixture. It is suitable for machining large, heavy, or complex-shaped parts. Through numerical control (CNC), it achieves high-precision and high-efficiency automated machining, reduces human operation errors, has high rigidity and stability, is suitable for cutting large quantities of material, and can perform rapid machining of batches of complex parts, providing good machining accuracy and surface quality.

[0003] When assembling existing three-axis CNC horizontal milling machines, the upper end of the machine bed usually needs to be ground in order to make the axis of the shaft hole on the hanger coincide with the axis of the shaft hole on the machine bed. Due to the large size of the machine bed, grinding is not convenient and affects the assembly efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a three-axis CNC horizontal milling machine, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: The three-axis CNC horizontal milling machine includes a bed and a cantilever beam. A transition plate is provided between the bed and the cantilever beam. The transition plate is mounted on the bed. A dovetail groove is provided on the upper surface of the transition plate. A boss is provided on the lower surface of the cantilever beam. When the cantilever beam is placed on the transition plate, the boss is located inside the dovetail groove. A plug is provided between the boss and the dovetail groove. A through groove is provided on the transition plate. Through holes and blind holes are respectively provided on both sides of the through groove. An internal thread is provided inside the blind hole. The machine also includes a screw for penetrating the through hole. The screw is rotatably connected to the through hole and threadedly connected to the blind hole.

[0006] Preferably, the lower surface of the adapter plate is provided with an annular groove, the cross-section of the annular groove is T-shaped, the upper surface of the adapter plate is provided with a mounting hole that communicates with the annular groove, the upper end face of the bed is provided with a connection hole, and it also includes T-bolts and nuts for connecting and fixing the adapter plate and the bed together.

[0007] Preferably, the upper end of the bed is provided with a through circular groove, and the lower surface of the adapter plate is provided with a protrusion that can be inserted into the circular groove.

[0008] Preferably, when the lower surface of the cantilever beam contacts the upper surface of the transition plate, the lower surface of the boss does not contact the inner bottom surface of the dovetail groove.

[0009] Preferably, it also includes an X-axis worktable, a Y-axis worktable, and a Z-axis worktable. The Z-axis worktable is mounted on the bed, the Y-axis worktable is mounted on the Z-axis worktable, and the X-axis worktable is mounted on the Y-axis worktable. The X-axis worktable is connected to the Y-axis worktable, the Y-axis worktable is connected to the Z-axis worktable, and the Z-axis worktable is connected to the bed via linear guide rails.

[0010] The beneficial effects of this utility model are:

[0011] During assembly, the adapter plate of this three-axis CNC horizontal milling machine can be ground separately to adjust the height of the cantilever beam and hanger, without having to grind the bed directly, thus improving the convenience of milling machine assembly. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0013] Figure 2 This is a schematic diagram of the plug's structure.

[0014] Figure 3 This is a structural diagram of the adapter plate and screw.

[0015] Figure 4 This is a schematic diagram of the structure of the lower surface of the adapter plate.

[0016] Figure 5 This is a schematic diagram of the annular groove.

[0017] In the diagram: 1. Bed; 2. Cantilever beam; 3. Hanger; 4. Adapter plate; 5. Dovetail groove; 6. Boss; 7. Plug; 8. Through groove; 9. Through hole; 10. Blind hole; 11. Screw; 12. Annular groove; 13. Mounting hole; 14. Connecting hole; 15. T-bolt; 16. Circular groove; 17. Protrusion; 18. X-axis worktable; 19. Y-axis worktable; 20. Z-axis worktable; 21. Linear guide rail. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0019] like Figure 1-5As shown, a three-axis CNC horizontal milling machine includes a bed 1 and a cantilever beam 2. A transition plate 4 is provided between the bed 1 and the cantilever beam 2. The transition plate 4 is mounted on the bed 1. A dovetail groove 5 is provided on the upper surface of the transition plate 4. A boss 6 is provided on the lower surface of the cantilever beam 2. When the cantilever beam 2 is placed on the transition plate 4, the boss 6 is located inside the dovetail groove 5. A plug 7 is provided between the boss 6 and the dovetail groove 5. A through groove 8 is provided on the transition plate 4. Through holes 9 and blind holes 10 are provided on both sides of the through groove 8. The blind hole 10 is provided with internal threads. The machine also includes a screw 11 for penetrating through the through hole 9. The screw 11 is rotatably connected to the through hole 9 and threadedly connected to the blind hole 10.

[0020] Both the bed 1 and the hanger 3 have shaft holes. The shaft holes on the bed 1 are used to install the spindle. The spindle extending beyond the bed 1 can be supported by the shaft holes on the cantilever beam 2 and the hanger 3, thereby improving the stability of the spindle during rotation.

[0021] To ensure the shaft holes on bed 1 and hanger 3 are coaxial, when installing this three-axis CNC horizontal milling machine, the adapter plate 4 needs to be placed on the upper end of bed 1 first. Then, the cantilever beam 2 and hanger 3 are installed onto the adapter plate 4 in sequence. At this time, the height difference between the center positions of the shaft holes on bed 1 and hanger 3 is measured. Typically, the adapter plate 4 is thicker, ensuring the center position of the shaft hole on hanger 3 is not lower than the center position of the shaft hole on bed 1. Therefore, it is only necessary to measure the height difference between the two shaft hole centers. For example, if the height difference is 0.3mm, then the lower surface of the adapter plate 4 is ground down by 0.3mm to ensure the height difference is within the allowable error range. After grinding the adapter plate 4, it is fixed to bed 1. Then, the cantilever beam 2 is installed onto the adapter plate 4, and the hanger 3 is installed onto the cantilever beam 2. At this point, the height difference needs to be measured... The horizontal distance difference between the shaft hole on the hanger 3 and the shaft hole on the bed 1 should be taken as the reference. Then, adjust the position of the cantilever beam 2 and align the center of the shaft hole on the hanger 3 with the center of the shaft hole on the bed 1. After adjusting the cantilever beam 2, insert the plug 7 into the gap between the boss 6 and the dovetail groove 5 to prevent the cantilever beam 2 from moving on the adapter plate 4. After installing the plug 7, pass the front end of the screw 11 through the through hole 9 and the through groove 8 to allow the front end of the screw 11 to enter the blind hole 10 and be threaded into the blind hole 10. When the tail end of the screw 11 contacts one side of the through hole 9, continue to rotate the screw 11. Due to the opening of the through groove 8 and the continuous threaded connection between the screw 11 and the blind hole 10, the through groove 8 is squeezed, and the dovetail groove 5 is deformed inward. This can firmly lock the boss 6 on the cantilever beam 2 into the dovetail groove 5 to improve the installation stability of the cantilever beam 2.

[0022] The screw 11 and the blind hole 10 will narrow the dovetail groove 5 by about 0.5mm, so that the cantilever beam 2 cannot be dislodged from the dovetail groove 5. At the same time, the change in this value will not affect the position of the already aligned hanger 3 and the shaft hole on the bed 1. The positional relationship between the hanger 3 and the shaft hole on the bed 1 is still within the allowable error range.

[0023] Furthermore, the lower surface of the adapter plate 4 is provided with an annular groove 12, the cross-section of which is T-shaped. The upper surface of the adapter plate 4 is provided with a mounting hole 13 that communicates with the annular groove 12. The upper end face of the bed 1 is provided with a connecting hole 14. It also includes T-bolts 15 and nuts for connecting and fixing the adapter plate 4 and the bed 1 together. There are four connecting holes 14. When the adapter plate 4 with a certain thickness removed is installed on the bed 1, the four T-bolts 15 are first inserted into the annular groove 12 through the mounting hole 13. Then, the four T-bolts 15 are aligned with the four connecting holes 14 on the bed 1 and the T-bolts 15 are passed through the connecting holes 14. Then, the adapter plate 4 is fixed to the bed 1 by connecting the nuts with the T-bolts 15.

[0024] The thickness of the adapter plate 4 needs to be ground off only during the first installation of the three-axis CNC horizontal milling machine. Under normal circumstances, the milling machine is not disassembled and then reinstalled.

[0025] Furthermore, the upper end of the bed 1 is provided with a through circular groove 16, and the lower surface of the adapter plate 4 is provided with a protrusion 17 that can be inserted into the circular groove 16. When the protrusion 17 enters the circular groove 16, the position of the adapter plate 4 can be restricted, so that the adapter plate 4 can only rotate along the circular groove 16 through the protrusion 17, thus preventing the adapter plate 4 from moving freely on the bed 1 and affecting the convenience of installation.

[0026] Furthermore, when the lower surface of the cantilever beam contacts the upper surface of the adapter plate 4, the lower surface of the boss 6 does not contact the inner bottom surface of the dovetail groove 5, ensuring that the cantilever beam can be placed on the adapter plate 4 in a horizontal manner, and avoiding the inability of the cantilever beam to be placed on the upper surface of the adapter plate 4 due to the contact between the boss 6 and the inner bottom surface of the dovetail groove 5.

[0027] Furthermore, it also includes an X-axis worktable 18, a Y-axis worktable 19, and a Z-axis worktable 20. The Z-axis worktable 20 is mounted on the bed 1, the Y-axis worktable 19 is mounted on the Z-axis worktable 20, and the X-axis worktable 18 is mounted on the Y-axis worktable 19. The X-axis worktable 18 and the Y-axis worktable 19, the Y-axis worktable 19 and the Z-axis worktable 20, and the Z-axis worktable 20 and the bed 1 are all connected by linear slide rails 21. The linear slide rails 2121 have good sliding ability and can reduce friction during movement and improve the smoothness of movement compared with existing hard rails.

[0028] The three-axis CNC horizontal milling machine includes a drive system for controlling the lifting and moving of the X-axis worktable 18, the Y-axis worktable 19 and the Z-axis worktable 20, but since the drive system is existing technology, it will not be described in detail here.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A three-axis CNC horizontal milling machine, characterized in that, The device includes a bed and a cantilever beam, with a transition plate between the bed and the cantilever beam. The transition plate is mounted on the bed, and its upper surface has a dovetail groove. The lower surface of the cantilever beam has a boss. When the cantilever beam is placed on the transition plate, the boss is located inside the dovetail groove, and a plug is provided between the boss and the dovetail groove. The transition plate has a through groove, and through holes and blind holes are respectively provided on both sides of the through groove. The blind holes have internal threads. The device also includes a screw for penetrating the through hole. The screw is rotatably connected to the through hole and threadedly connected to the blind hole.

2. The three-axis CNC horizontal milling machine according to claim 1, characterized in that, The lower surface of the adapter plate is provided with an annular groove, the cross-section of which is T-shaped. The upper surface of the adapter plate is provided with an installation hole that communicates with the annular groove. The upper end face of the bed is provided with a connection hole. The adapter plate and the bed are also provided with T-bolts and nuts for connecting and fixing them together.

3. The three-axis CNC horizontal milling machine according to claim 2, characterized in that, The upper end of the bed is provided with a through circular groove, and the lower surface of the adapter plate is provided with a protrusion that can be inserted into the circular groove.

4. The three-axis CNC horizontal milling machine according to claim 3, characterized in that, When the lower surface of the cantilever beam contacts the upper surface of the transition plate, the lower surface of the boss does not contact the inner bottom surface of the dovetail groove.

5. The three-axis CNC horizontal milling machine according to claim 1, characterized in that, It also includes an X-axis worktable, a Y-axis worktable, and a Z-axis worktable. The Z-axis worktable is mounted on the bed, the Y-axis worktable is mounted on the Z-axis worktable, and the X-axis worktable is mounted on the Y-axis worktable. The X-axis worktable is connected to the Y-axis worktable, the Y-axis worktable is connected to the Z-axis worktable, and the Z-axis worktable is connected to the bed via linear guide rails.

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