Miniature numerical control machine tool

Abstract

The utility model discloses a miniature numerical control machine tool which comprises a base, a first supply mechanism is arranged at the lower end of the base, a second supply mechanism is arranged on the first supply mechanism, and a workbench is arranged on the second supply mechanism. A third supply mechanism is arranged at the upper end of the base, and a main shaft mechanism is arranged on the third supply mechanism. According to the utility model, the miniaturization of the numerical control machine tool is realized, the utilization rate of configuration of the numerical control machine tool can be effectively improved while the processing requirements of workpieces with smaller sizes are met, and the waste of resources is reduced; and secondly, due to the miniaturized design, the occupied area is small, the production space can be more effectively utilized, the operation cost is reduced, the structure is relatively simpler, and the manufacturing cost and the maintenance cost are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of CNC machine tool technology, and more specifically, relates to a micro CNC machine tool. Background Technology

[0002] CNC machine tools, short for numerical control machine tools, are automated machine tools equipped with a program control system. They can logically process programs with control codes or other symbolic instructions, decode them, input them into the CNC device via an information carrier, and issue various control signals to direct the machine tool to automatically complete the machining of parts. CNC machine tools play an important role in modern manufacturing and are widely used in the machining of various precision and complex parts.

[0003] Currently, in machining, we often encounter small-sized workpieces. When using general-purpose CNC machine tools for machining, the small size of the workpiece means that the full length of the general-purpose CNC machine tool cannot be utilized, resulting in many configurations being idle, such as the worktable area and feed axis travel. This not only wastes resources but also increases maintenance due to the high utilization rate of general-purpose CNC machine tools. Utility Model Content

[0004] In order to solve the problems existing in the prior art, this utility model aims to provide a miniature CNC machine tool.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0006] A miniature CNC machine tool includes a base, a first supply mechanism at the lower end of the base, a second supply mechanism on the first supply mechanism, and a worktable on the second supply mechanism; a third supply mechanism at the upper end of the base, and a spindle mechanism on the third supply mechanism.

[0007] The spindle mechanism includes a spindle, an angle adjustment module, and a rotation module; the spindle is mounted on the angle adjustment module, which allows for adjustment of the spindle's tilt angle; the angle adjustment module is mounted on the rotation module, which drives the angle adjustment module to rotate, thereby causing the spindle to rotate.

[0008] Furthermore, the first supply mechanism, the second supply mechanism, and the third supply mechanism each include a pair of linear guide rails, and a ball screw is provided between the pair of linear guide rails. The direction of the ball screw is parallel to the pair of linear guide rails. One end of the ball screw is connected to a supply motor through a coupling.

[0009] Furthermore, both the first supply mechanism and the third supply mechanism include a connecting plate, and the pair of linear guide slides and the ball screw balls belonging to the first supply mechanism and the third supply mechanism are all fixedly connected to the connecting plate.

[0010] Furthermore, the linear guide rail is a linear cylindrical linear guide rail.

[0011] Furthermore, the angle adjustment module includes a first bracket, on which an adjustment motor is mounted. The adjustment motor is connected to a turntable assembly mounted on the first bracket via a synchronous pulley assembly. The turntable assembly is provided with a fixing seat for fixing the main shaft.

[0012] Furthermore, the rotating module includes a second bracket, on which a rotating motor is mounted, and the rotating motor is connected to a turntable assembly mounted on the second bracket via a synchronous pulley assembly.

[0013] Furthermore, the rotating module also includes a pressure roller for pressing the timing belt in the timing belt pulley assembly to which it belongs.

[0014] Furthermore, the turntable assembly includes a turntable and a connecting block, and the turntable and the connecting block are connected together by a rotating shaft; a bearing is respectively fitted at the connection point between the turntable and the connecting block and the rotating shaft.

[0015] Furthermore, the rotating shaft is locked together with the turntable and the connecting block by corresponding locking bolts, and positioning pins are respectively provided on the connecting end faces of the rotating shaft, the turntable and the connecting block.

[0016] Furthermore, a support foot is provided on the lower end surface of the base.

[0017] The beneficial effects of this utility model are as follows: This utility model realizes the miniaturization of CNC machine tools. While meeting the processing needs of smaller workpieces, it can effectively improve the utilization rate of its configuration and reduce the waste of resources. Secondly, the miniaturized design not only occupies a small area, but also makes more effective use of production space and reduces operating costs. Moreover, the structure is relatively simple, which reduces manufacturing and maintenance costs.

[0018] Effectively saves machine tool manufacturing costs

[0019] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of the machine tool according to this utility model;

[0022] Figure 2 This is a schematic diagram of the first supply machine structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the installation of the first supply machine of this utility model;

[0024] Figure 4 This is a schematic diagram of the second supply mechanism of this utility model;

[0025] Figure 5 This is a schematic diagram of the installation of the second supply mechanism of this utility model;

[0026] Figure 6 A cross-sectional view of the installation of the second supply mechanism of this utility model;

[0027] Figure 7 This is a schematic diagram of the third supply mechanism of this utility model;

[0028] Figure 8 This is a schematic diagram of the installation of the third supply mechanism of this utility model;

[0029] Figure 9 This is a schematic diagram of the spindle mechanism of this utility model after removing part of its structure;

[0030] Figure 10 This is a schematic diagram of the turntable assembly of this utility model;

[0031] Figure 11 This is an exploded view of the turntable assembly of this utility model.

[0032] The following are the labeling instructions in the diagram: 1. Base; 2. First supply mechanism; 3. Second supply mechanism; 4. Worktable; 5. Third supply mechanism; 6. Spindle mechanism; 7. Support foot; 21. Linear guide rail; 22. Ball screw; 23. Coupling; 24. Supply motor; 25. Connecting plate; 61. Spindle; 62. Angle adjustment module; 63. Rotation module; 621. First bracket; 622. Adjustment motor; 623. Synchronous belt pulley assembly; 624. Turntable assembly; 625. Fixed seat; 631. Second bracket; 632. Rotation motor; 633. Pressure roller; 6241. Turntable; 6242. Connecting block; 6243. Rotating shaft; 6244. Bearing; 6245. Positioning pin. Detailed Implementation

[0033] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] It should be noted that all directional indicators (such as up, down, left, right, front, back, upper end, lower end, top, bottom, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0035] See Figure 1 As shown, a miniature CNC machine tool includes a base 1. A first supply mechanism 2 is provided at the lower end of the base 1. A second supply mechanism 3 is provided on the first supply mechanism 2. The second supply mechanism 3 can move back and forth in the Y direction by being driven by the first supply mechanism 2. A worktable 4 is provided on the second supply mechanism 3. The worktable 4 can move back and forth in the X direction by being driven by the second supply mechanism 3. A third supply mechanism 5 is provided at the upper end of the base 1. A spindle mechanism 6 is provided on the third supply mechanism 5. The spindle mechanism 6 can move back and forth in the Z direction by being driven by the third supply mechanism 5.

[0036] The spindle mechanism 6 includes a spindle 61, an angle adjustment module 62, and a rotation module 63. The spindle 61 is mounted on the angle adjustment module 62, which allows for adjustment of the tilt angle of the spindle 61. The angle adjustment module 62 is mounted on the rotation module 63, which drives the angle adjustment module 62 to rotate, thereby causing the spindle 61 to rotate.

[0037] Further, see Figure 2 As shown, in this embodiment, the first supply mechanism 2 includes a pair of linear guide rails 21, and a connecting plate 25 is fixed on the slide of the pair of linear guide rails 21; a ball screw 22 is arranged between the pair of linear guide rails 21, the direction of the ball screw 22 is parallel to the pair of linear guide rails 21, one end of the screw of the ball screw 22 is connected to a supply motor 24 through a coupling 23, and the balls of the ball screw 22 are fixedly connected to the connecting plate 25; during installation, see Figure 3As shown, the guide rails of the pair of linear guide rails 21 are fixed on the base 1, and the two ends of the ball screw 22 are respectively mounted on the base 1 through corresponding bearing seats. The supply motor 24 is fixed on the base 1 through a corresponding motor bracket. During operation, the supply motor 24 drives the ball screw 22 to rotate through the coupling 23, thereby driving the balls of the ball screw 22 to move along its screw, thereby driving the connecting plate 25 to move back and forth along the pair of linear guide rails 21 in the Y direction.

[0038] See Figure 4 As shown, in this embodiment, the second supply mechanism 3 includes a pair of linear guide rails 21, and a ball screw 22 is disposed between the pair of linear guide rails 21. The direction of the ball screw 22 is parallel to the pair of linear guide rails 21. One end of the ball screw 22 is connected to a supply motor 24 via a coupling 23. For installation, see [reference needed]. Figure 5-6 As shown, the supply motor 24 is connected to a pair of linear guide rails 2 via a corresponding motor bracket. The slides of the pair of linear guide rails 2 and the balls of the ball screw 22 are respectively fixedly connected to the connecting plate 25 to which the first supply mechanism 2 belongs. The worktable 4 is fixedly connected to the guide rails of the pair of linear guide rails 2. The two ends of the ball screw 22 are connected to the worktable 4 via corresponding bearing seats. During operation, the supply motor 24 drives the ball screw 224 to rotate via the coupling 23, thereby causing the ball screw 224 to move back and forth in its balls, thereby driving the supply motor 24 to move with it, thereby causing the guide rails of the pair of linear guide rails 2 to slide in their slides, and thus driving the worktable 4 to move back and forth in the X direction.

[0039] See Figure 7 As shown, in this embodiment, the third supply mechanism 5 includes a pair of linear guide rails 21, and a connecting plate 25 is fixed on the slide of the pair of linear guide rails 21; a ball screw 22 is arranged between the pair of linear guide rails 21, the direction of the ball screw 22 is parallel to the pair of linear guide rails 21, one end of the screw of the ball screw 22 is connected to a supply motor 24 through a coupling 23, and the balls of the ball screw 22 are fixedly connected to the connecting plate 25; during installation, see Figure 8As shown, the guide rails of the pair of linear guide rails 21 are fixed on the base 1, and the two ends of the ball screw 22 are respectively mounted on the base 1 through corresponding bearing seats. The supply motor 24 is fixed on the base 1 through a corresponding motor bracket. During operation, the supply motor 24 drives the ball screw 22 to rotate through the coupling 23, thereby driving the balls of the ball screw 22 to move along its screw, thereby driving the connecting plate 25 to move back and forth along the pair of linear guide rails 21 in the Z direction.

[0040] In this embodiment, the linear guide rails 21 belonging to the first supply mechanism 2, the second supply mechanism 3, and the third supply mechanism 5 are all linear cylindrical guide rails.

[0041] Further, see Figure 9 As shown, in this embodiment, the angle adjustment module 62 includes a first bracket 621, on which an adjustment motor 622 is mounted. The adjustment motor 622 is connected to a turntable assembly 624 mounted on the first bracket 621 via a synchronous pulley assembly 623. The turntable assembly 624 is provided with a fixing seat 625 for fixing the main shaft 61. During operation, the adjustment motor 622 drives the turntable assembly 624 to rotate via the synchronous pulley assembly 623, thereby driving the main shaft 61 fixed on the fixing seat 625 to rotate, thereby realizing the adjustment of the angle of the main shaft 61.

[0042] Further details can be found by referring to [link / reference]. Figure 9 As shown, in this embodiment, the rotating module 63 includes a second bracket 631, on which a rotating motor 632 is mounted. The rotating motor 632 is connected to a turntable assembly 624 mounted on the second bracket 631 via a synchronous pulley assembly 623. During installation, the second bracket 631 is fixed to the connecting plate 25 belonging to the third supply mechanism 5, while the first bracket 621 is connected to the turntable assembly 624 belonging to the rotating module 63. During operation, the rotating motor 632 drives the turntable assembly 624 to rotate via the synchronous pulley assembly 623, thereby driving the second bracket 631 to rotate, and thus driving the main shaft 61 to rotate.

[0043] In this embodiment, see further. Figure 9 As shown, the rotating module 63 also includes a pressure roller 633 for pressing the synchronous belt in the synchronous belt pulley assembly 623 to which it belongs.

[0044] Further, see Figure 10-11As shown, in this embodiment, the turntable assembly 624 belonging to both the angle adjustment module 62 and the rotation module 63 includes a turntable 6241 and a connecting block 6242. The turntable 6241 and the connecting block 6242 are connected together by a rotating shaft 6243. A bearing 6244 is respectively fitted at the connection points of the turntable 6241, the connecting block 6242, and the rotating shaft 6243. In this embodiment, the rotating shaft 6243 is locked together with the turntable 6241 and the connecting block 6242 by corresponding locking bolts, and a positioning pin 6245 is respectively provided on the connection end face of the rotating shaft 6243 with the turntable 6241 and the connecting block 6242. The positioning pin 6245 is hexagonal. During installation, refer to... Figure 9 As shown, the fixed base 625 to which the angle adjustment module 62 belongs is fixed on the turntable 6241 to which it belongs; and the synchronous pulleys at one end of the synchronous belt pulley assembly 623 to which the angle adjustment module 62 and the rotation module 63 belong are both connected to the connecting block 6242 to which they belong, and are locked by the corresponding locking bolts.

[0045] Further, see Figure 1 As shown, in this embodiment, a support foot 7 is provided on the lower end surface of the base 1.

[0046] The working principle of this utility model is as follows:

[0047] When in use, after connecting the machine tool to the control system, load the corresponding cutting tool onto the spindle 61 and fix the workpiece to be processed onto the worktable 4.

[0048] During machining, the control system controls the spindle 61 to drive the cutting tool to rotate, and then controls the first supply mechanism 2, the second supply mechanism 3, the third supply mechanism 5, the angle adjustment module 62, and the rotation module 63 to work together to process the workpiece. Specifically, the workpiece is driven by the first supply mechanism 2 and the second supply mechanism 3 to move in the X and Y directions, and the spindle 61 is driven by the third supply mechanism 5 and the angle adjustment module 62 to adjust its angle and rotate, so that the cutting tool can process the workpiece.

[0049] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A miniature CNC machine tool, characterized in that: Includes a base (1), a first supply mechanism (2) is provided at the lower end of the base (1), a second supply mechanism (3) is provided on the first supply mechanism (2), and a worktable (4) is provided on the second supply mechanism (3); a third supply mechanism (5) is provided at the upper end of the base (1), and a spindle mechanism (6) is provided on the third supply mechanism (5). The main spindle mechanism (6) includes a main spindle (61), an angle adjustment module (62), and a rotation module (63); the main spindle (61) is mounted on the angle adjustment module (62), and the tilt angle of the main spindle (61) can be adjusted through the angle adjustment module (62); the angle adjustment module (62) is mounted on the rotation module (63), and the rotation module (63) can drive the angle adjustment module (62) to rotate, thereby driving the main spindle (61) to rotate.

2. The micro CNC machine tool according to claim 1, characterized in that: The first supply mechanism (2), the second supply mechanism (3) and the third supply mechanism (5) each include a pair of linear guide rails (21), and a ball screw (22) is provided between the pair of linear guide rails (21). The direction of the ball screw (22) is parallel to the pair of linear guide rails (21). One end of the ball screw (22) is connected to a supply motor (24) through a coupling (23).

3. The micro CNC machine tool according to claim 2, characterized in that: The first supply mechanism (2) and the third supply mechanism (5) each include a connecting plate (25), and the pair of linear guide rails (21) slides and the balls of the ball screw (22) belonging to the first supply mechanism (2) and the third supply mechanism (5) are all fixedly connected to the connecting plate (25).

4. The micro CNC machine tool according to claim 2, characterized in that: The linear guide (21) is a linear cylindrical linear guide.

5. The micro CNC machine tool according to claim 1, characterized in that: The angle adjustment module (62) includes a first bracket (621), on which an adjustment motor (622) is provided. The adjustment motor (622) is connected to a turntable assembly (624) on the first bracket (621) via a synchronous pulley assembly (623). The turntable assembly (624) is provided with a fixing seat (625) for fixing the main shaft (61).

6. The micro CNC machine tool according to claim 1, characterized in that: The rotating module (63) includes a second bracket (631), on which a rotating motor (632) is mounted. The rotating motor (632) is connected to a turntable assembly (624) mounted on the second bracket (631) via a synchronous pulley assembly (623).

7. The micro CNC machine tool according to claim 6, characterized in that: The rotating module (63) also includes a pressure roller (633) for pressing the synchronous belt in the synchronous belt pulley assembly (623) to which it belongs.

8. The micro CNC machine tool according to claim 5 or 6, characterized in that: The turntable assembly (624) includes a turntable (6241) and a connecting block (6242), and the turntable (6241) and the connecting block (6242) are connected together by a rotating shaft (6243); a bearing (6244) is respectively fitted at the connection between the turntable (6241) and the connecting block (6242) and the rotating shaft (6243).

9. The micro CNC machine tool according to claim 8, characterized in that: The rotating shaft (6243) is locked together with the turntable (6241) and the connecting block (6242) by corresponding locking bolts, and positioning pins (6245) are respectively provided on the connecting end faces of the rotating shaft (6243) and the turntable (6241) and the connecting block (6242).

10. The micro CNC machine tool according to claim 1, characterized in that: The base (1) is provided with a support foot (7) on its lower end surface.

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