Numerical control lathe for machining disc workpieces

Abstract

The utility model relates to a numerical control lathe of processing disc kind work piece, including machine table, be equipped with the processing platform on the machine table, the rear side of work table is equipped with vertical stand, be equipped with Y axis movement mechanism of control processing platform along Y axle direction sliding on the machine table, be equipped with C axle clamp mechanism on the processing platform, be equipped with first X axle sliding seat, second X axle sliding seat and two groups X axle movement mechanism on the vertical stand, be equipped with B axle processing mechanism and control first Z axle movement mechanism of B axle processing mechanism along Z axle direction sliding on the first X axle sliding seat, be equipped with tool turret processing mechanism and control second Z axle movement mechanism of tool turret processing mechanism along Z axle direction movement on the second X axle sliding seat, this numerical control lathe passes two groups Z axle and X axle, makes B axle processing mechanism and tool turret processing mechanism can independently process, completes more function's turning and milling composite operation.

Description

Technical Field

[0001] This utility model relates to the field of CNC lathes, specifically a CNC lathe for machining disc-shaped workpieces. Background Technology

[0002] Current CNC lathe structures are illustrated in Chinese patent document, application number 201410361670.6, which discloses a milling-turning composite machine. This machine includes an X-axis transmission device parallel to the base, with a vertical Z-axis transmission device mounted on its drive shaft. A Z-axis slide plate is externally connected to the Z-axis transmission device, and a servo motor is mounted above the Z-axis slide plate. The spindle box is externally connected to the Z-axis slide plate and can slide up and down along the Z-axis transmission device. Driven by the servo motor, the spindle box and the Z-axis transmission device can slide back and forth together along the drive shaft of the X-axis transmission device. This type of CNC lathe only has single-axis machining capabilities, allowing only rough machining of workpieces. After rough machining, it requires switching to other fine machining equipment, resulting in low workpiece processing efficiency and a simple milling-turning composite function that fails to meet more complex machining needs. Therefore, the applicant has improved and perfected the CNC lathe structure to solve the above problems and provide a suitable option for consumers. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned existing problems and provide a CNC lathe with a simple and reasonable structure for processing disc-shaped workpieces.

[0004] A CNC lathe for machining disc-shaped workpieces includes a machine base, a machining table on the machine base, a vertical machine base behind the machining table, a Y-axis motion mechanism on the machine base for controlling the machining table to slide along the Y-axis, and a C-axis clamping mechanism on the machining table. The vertical machine base has a first X-axis slide, a second X-axis slide, and two sets of X-axis motion mechanisms. The first and second X-axis slides slide along the X-axis on the vertical machine base via the X-axis motion mechanisms. The first X-axis slide has a B-axis machining mechanism and a first Z-axis motion mechanism for controlling the B-axis machining mechanism to slide along the Z-axis. The second X-axis slide has a turret machining mechanism and a second Z-axis motion mechanism for controlling the turret machining mechanism to move along the Z-axis.

[0005] The objective of this utility model can also be achieved by the following technical measures:

[0006] As a more specific embodiment, the B-axis machining mechanism includes a first Z-axis slide, a B-axis drive module is fixedly connected to the front side of the first Z-axis slide, and the output end of the B-axis drive module is connected to a milling and turning spindle. The B-axis drive module controls the milling and turning spindle to rotate around the B-axis.

[0007] As a further embodiment, the turret machining mechanism includes a second Z-axis slide, the front side of which is fixedly connected to a drive shaft that rotates around the Z-axis, and the output shaft of the drive shaft is connected to a tool disc.

[0008] As a further embodiment, the vertical machine base is connected to a tool magazine bracket on the side facing the B-axis machining mechanism, the tool magazine is mounted on the tool magazine bracket, and a tool changing mechanism is provided between the tool magazine and the B-axis machining mechanism.

[0009] As a further embodiment, the C-axis clamping mechanism includes a C-axis rotary spindle fixed to the upper end of the machining table. The upper end of the C-axis rotary spindle is provided with a chuck structure for fixing the workpiece, and the C-axis rotary spindle controls the chuck structure to rotate around the C-axis.

[0010] As a further embodiment, the tool changing mechanism includes a servo motor module fixed on the tool magazine, and the output end of the servo motor module is connected to a tool changing arm.

[0011] As a further embodiment, the Y-axis motion mechanism, X-axis motion mechanism, and first and second Z-axis motion mechanisms all include slide rail assemblies and drive assemblies arranged in different directions. The C-axis clamping mechanism, or B-axis machining mechanism, or turret machining mechanism slides on the machine tool or vertical base through the cooperation of the slide rail assembly and drive assembly.

[0012] As a further embodiment, the two sets of X-axis motion mechanisms include the same slide rail assembly, and the slide rail assembly includes a bottom slide rail and a bottom slide rail, as well as a rear fixed slide rail and a rear movable slider.

[0013] The bottom of the vertical base is provided with a support step surface, the bottom slide rail is fixed on the support step surface, and the bottom movable block is fixed to the bottom surface of the first X-axis slide or the second X-axis slide and slides in cooperation with the bottom slide rail.

[0014] The rear fixed slide rails are provided in two or more positions and are arranged vertically at intervals on the front side of the vertical machine base. The rear movable slide block is fixed to the back of the first X-axis slide block or the second X-axis slide block and slides in cooperation with the rear fixed slide rails.

[0015] As a further embodiment, the vertical machine base or turret machining mechanism is also provided with an upper clamping device, and a clamping motion mechanism is provided between the upper clamping device and the vertical machine base. The upper clamping device is located between the B-axis machining mechanism and the turret machining mechanism.

[0016] The beneficial effects of this utility model are as follows:

[0017] This utility model discloses a CNC lathe for machining disc-shaped workpieces. This CNC lathe controls the movement of the B-axis machining mechanism and the turret machining mechanism through two sets of Z-axis motion mechanisms and two sets of X-axis motion mechanisms, respectively. In conjunction with a high-speed rotating C-axis fixture mechanism, the B-axis machining mechanism and the turret machining mechanism can independently perform roughing and fine machining of the workpiece simultaneously, enabling five-dimensional machining capabilities. This allows for more complex milling and turning operations, improving the machining efficiency of the CNC lathe. Furthermore, the added B-axis enables the tool on the B-axis machining mechanism to have a tool tip following function, which can reduce tool tip wear and increase tool life. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model. Figure 1 .

[0019] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of this utility model. Figure 2 .

[0020] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1:

[0022] See Figure 1 and Figure 2 As shown, a CNC lathe for machining disc-shaped workpieces includes a machine base 1, a machining table 2 on the machine base 1, and a vertical base 3 on the rear side of the machining table. The machine base 1 is equipped with a Y-axis motion mechanism 4 that controls the machining table 2 to slide along the Y-axis direction, and a C-axis clamping mechanism 5 on the machining table 2. The vertical base 3 is equipped with a first X-axis slide 6, a second X-axis slide 7, and two sets of X-axis motion mechanisms 8. The first X-axis slide 6 and the second X-axis slide 7 slide along the X-axis direction on the vertical base 3 respectively through the X-axis motion mechanisms 8. The first X-axis slide 6 is equipped with a B-axis machining mechanism 9 and a first Z-axis motion mechanism 10 that controls the B-axis machining mechanism 9 to slide along the Z-axis direction. The second X-axis slide 7 is equipped with a turret machining mechanism 11 and a second Z-axis motion mechanism 12 that controls the turret machining mechanism 11 to move along the Z-axis direction.

[0023] This CNC lathe controls the movement of the B-axis machining mechanism 9 and the turret machining mechanism 11 through two sets of Z-axis motion mechanisms and two sets of X-axis motion mechanisms respectively. In addition, it is equipped with a high-speed rotating C-axis fixture mechanism 5, which enables the B-axis machining mechanism 9 and the turret machining mechanism 11 to perform five-dimensional machining capabilities, including independent roughing and fine machining of workpieces, and to complete more multifunctional milling and turning operations, thereby improving the machining efficiency of the CNC lathe.

[0024] On the other hand, the added B-axis enables the cutting tools on the B-axis machining mechanism 9 to have a tool tip following function, which can reduce tool tip wear and increase tool life.

[0025] In this embodiment, the B-axis machining mechanism 9 includes a first Z-axis slide 91, and a B-axis drive module 92 is fixedly connected to the front side of the first Z-axis slide 91. The output end of the B-axis drive module 92 is connected to a milling spindle 93, and the B-axis drive module 92 controls the milling spindle 93 to rotate around the B-axis.

[0026] In this embodiment, the turret machining mechanism 11 includes a second Z-axis slide 111, the front side of which is fixedly connected to a drive shaft 112 that rotates around the Z-axis, and the output shaft of the drive shaft 112 is connected to a tool disc 113.

[0027] In this embodiment, the vertical machine base 3 is connected to a tool magazine bracket 13 on the side facing the B-axis machining mechanism 9, a tool magazine 14 is installed on the tool magazine bracket 13, and a tool changing mechanism 15 is provided between the tool magazine 14 and the B-axis machining mechanism 9.

[0028] In this embodiment, the C-axis clamping mechanism 5 includes a C-axis rotating spindle 51 fixed on the upper end of the processing table 2. The upper end of the C-axis rotating spindle 51 is provided with a chuck structure 52 for fixing the workpiece. The C-axis rotating spindle 51 controls the chuck structure 52 to rotate around the C-axis.

[0029] The tool changing mechanism 15 includes a servo motor module 151 fixed on the tool magazine 14. The output end of the servo motor module 151 is connected to the tool changing arm 152. During tool changing, the B-axis drive module 92 drives the milling spindle 93 to rotate 90°, so that the milling spindle 93 is set along the Z-axis direction. The servo motor module 151 controls the rotation of the tool changing arm 152 to install the tool clamped by the tool magazine 14 onto the milling spindle 93.

[0030] The Y-axis motion mechanism 4, X-axis motion mechanism 8, and the first and second Z-axis motion mechanisms 12 all include slide rail assemblies and drive assemblies arranged in different directions. The C-axis clamping mechanism 5, or B-axis machining mechanism 9, or turret machining mechanism 11 slides on the machine base 1 or vertical machine base 3 through the cooperation of the slide rail assemblies and drive assemblies.

[0031] The two sets of X-axis motion mechanisms 8 include the same slide rail assembly, and the slide rail assembly includes a bottom slide rail 161 and a bottom slide rail, as well as a rear slide rail 163 and a rear movable slider 164;

[0032] The bottom of the vertical base 3 is provided with a support step surface 301, the bottom slide rail 161 is fixed on the support step surface 301, and the bottom movable block is fixed to the bottom surface of the first X-axis slide 6 or the second X-axis slide 7 and slides in cooperation with the bottom slide rail 161.

[0033] The rear slide rail 163 has two or more rails arranged vertically at intervals on the front side of the vertical base 3. The rear movable slider 164 is fixed to the back of the first X-axis slide 6 or the second X-axis slide 7 and slides in cooperation with the rear slide rail 163.

[0034] The cooperation between the bottom slide rail 161 and the bottom slide rail can support the first X-axis slide 6 or the second X-axis slide 7, reduce the pressure between the rear slide rail 163 and the rear movable block 164, and make the sliding of the first X-axis slide 6 and the second X-axis slide 7 more stable.

[0035] The slide rail assemblies of the Y-axis motion mechanism 4 and the first and second Z-axis motion mechanisms 12 include a conventional number (two sets) of parallel fixed slide rails 165 and movable slide blocks 166. The fixed slide rails 165 are fixed on the front side of the machine base 1 or the first X-axis slide block 6 and the second X-axis slide block 7, respectively. The movable slide blocks 166 are fixed on the bottom surface of the processing table 2, or the bottom surface of the first Z-axis slide block 91, or the bottom surface of the second Z-axis slide block 111, respectively. The movable slide blocks 166 slide in cooperation with the fixed slide rails 165.

[0036] The drive components of the two sets of X-axis motion mechanisms 8 include at least a lead screw and a drive motor connected to one end of the lead screw. The two lead screws are arranged vertically at intervals on the front side of the vertical machine base 3, and the two lead screws overlap at least partially along the X-axis direction. The drive components also include bearings, which are threadedly connected to the lead screws and fixedly connected to the corresponding Z-axis slide. The at least partial overlap of the two lead screws along the X-axis direction allows the B-axis machining mechanism 9 and the turret machining mechanism 11 to move a wider range relative to the workpiece, enabling the CNC lathe to perform more complex milling and turning operations (the drive components are of conventional structure and are not marked in the attached drawings).

[0037] The drive components of the Y-axis motion mechanism 4 and the first and second Z-axis motion mechanisms 12 have the same structure as the drive components of the X-axis motion mechanism 8, and will not be described again here. Example 2:

[0038] Example 2 is based on Example 1, see [link to example]. Figure 3As shown, an upper clamping device A is also provided on the vertical machine base 3. A clamping motion mechanism is provided between the upper clamping device A and the vertical machine base 3. The upper clamping device A is located between the B-axis machining mechanism 9 and the turret machining mechanism 11. The addition of the upper clamping device A enables the CNC lathe to also process long shaft workpieces B, which are clamped along the Z-axis direction between the upper clamping device A and the C-axis clamping mechanism 5.

[0039] Furthermore, based on Embodiment 2, the upper clamping device A can also be set on the turret machining mechanism 11, and the second Z-axis motion mechanism 12 serves as the clamping motion mechanism. However, in this embodiment, only the B-axis machining mechanism 9 can process the workpiece.

[0040] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A CNC lathe for machining disc-shaped workpieces, comprising a machine base (1), wherein a machining table (2) is provided on the machine base (1), and a vertical machine base (3) is provided on the rear side of the machining table, characterized in that: The machine base (1) is provided with a Y-axis motion mechanism (4) that controls the machining table (2) to slide along the Y-axis direction, and the machining table (2) is provided with a C-axis clamping mechanism (5); the vertical machine base (3) is provided with a first X-axis slide (6), a second X-axis slide (7) and two sets of X-axis motion mechanisms (8), the first X-axis slide (6) and the second X-axis slide (7) slide along the X-axis direction on the vertical machine base (3) respectively through the X-axis motion mechanism (8); the first X-axis slide (6) is provided with a B-axis machining mechanism (9) and a first Z-axis motion mechanism (10) that controls the B-axis machining mechanism (9) to slide along the Z-axis direction, and the second X-axis slide (7) is provided with a turret machining mechanism (11) and a second Z-axis motion mechanism (12) that controls the turret machining mechanism (11) to move along the Z-axis direction.

2. The CNC lathe for machining disc-shaped workpieces according to claim 1, characterized in that: The B-axis machining mechanism (9) includes a first Z-axis slide (91), and a B-axis drive module (92) is fixedly connected to the front side of the first Z-axis slide (91). The output end of the B-axis drive module (92) is connected to a milling spindle (93), and the B-axis drive module (92) controls the milling spindle (93) to rotate around the B-axis.

3. The CNC lathe for machining disc-shaped workpieces according to claim 1, characterized in that: The turret machining mechanism (11) includes a second Z-axis slide (111), and a drive shaft (112) that rotates around the Z-axis is fixedly connected to the front side of the second Z-axis slide (111). The output shaft of the drive shaft (112) is connected to a tool head (113).

4. A CNC lathe for machining disc-shaped workpieces according to claim 1, characterized in that: The vertical machine base (3) is connected to a tool magazine bracket (13) on the side facing the B-axis machining mechanism (9). A tool magazine (14) is installed on the tool magazine bracket (13). A tool changing mechanism (15) is provided between the tool magazine (14) and the B-axis machining mechanism (9).

5. A CNC lathe for machining disc-shaped workpieces according to claim 1, characterized in that: The C-axis clamping mechanism (5) includes a C-axis rotary spindle (51) fixed on the upper end of the processing table (2). The upper end of the C-axis rotary spindle (51) is provided with a chuck structure (52) for fixing the workpiece. The C-axis rotary spindle (51) controls the chuck structure (52) to rotate around the C-axis.

6. A CNC lathe for machining disc-shaped workpieces according to claim 1, characterized in that: The tool changing mechanism (15) includes a servo motor module (151) fixed on the tool magazine (14), and the output end of the servo motor module (151) is connected to a tool changing arm (152).

7. A CNC lathe for machining disc-shaped workpieces according to claim 1, characterized in that: The Y-axis motion mechanism (4), X-axis motion mechanism (8) and the first and second Z-axis motion mechanisms (12) all include slide rail assemblies and drive assemblies arranged in different directions. The C-axis clamping mechanism (5), or B-axis machining mechanism (9), or turret machining mechanism (11) slides on the machine base (1) or vertical machine base (3) through the cooperation of the slide rail assembly and drive assembly.

8. A CNC lathe for machining disc-shaped workpieces according to claim 7, characterized in that: The two sets of X-axis motion mechanisms (8) include the same slide rail assembly, and the slide rail assembly includes a bottom slide rail and a bottom slide rail, as well as a rear fixed slide rail (163) and a rear movable slide rail (164). The bottom of the vertical base (3) is provided with a support step surface (301), the bottom slide rail is fixed on the support step surface (301), and the bottom movable slider is fixed to the bottom surface of the first X-axis slide (6) or the second X-axis slide (7) and slides in cooperation with the bottom slide rail. The rear fixed slide rail (163) has two or more of them, which are arranged vertically at intervals on the front side of the vertical base (3). The rear movable slide block (164) is fixed to the back of the first X-axis slide block (6) or the second X-axis slide block (7) and slides in cooperation with the rear fixed slide rail (163).

9. A CNC lathe for machining disc-shaped workpieces according to claim 1, characterized in that: The vertical machine base (3) or the turret machining mechanism (11) is also provided with an upper clamping device (A), and a clamping motion mechanism is provided between the upper clamping device (A) and the vertical machine base (3). The upper clamping device (A) is located between the B-axis machining mechanism (9) and the turret machining mechanism (11).

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