CN111618606A - A CNC machine tool - Google Patents

Abstract

The invention discloses a numerical control machine tool, which comprises a machine base. Be equipped with the spindle drum on the frame, be equipped with the main shaft of taking the (holding) chuck on the spindle drum, be equipped with XY axle drive assembly on the frame, XY axle drive assembly's output is equipped with the knife rest, be equipped with the processing cutter on the knife rest, be equipped with ZH axle drive assembly on the frame, ZH axle drive assembly's output is equipped with first pair spindle drum, be equipped with the first pair main shaft of taking the (holding) chuck on the first pair spindle drum, be close to main shaft department on the frame and be equipped with upright piece, be equipped with L axle actuating mechanism on the upright piece, L axle actuating mechanism's output is equipped with the vice spindle drum of second, be. One side of the stand block on the machine base is provided with a tool magazine disc, the tool magazine disc corresponds to the front and back of the second auxiliary spindle, and a tool changing mechanism is arranged between the tool magazine disc and the second auxiliary spindle on the stand block. The numerical control machine tool has the characteristics of flexible processing and high processing efficiency.

Description

A CNC machine tool

technical field

The invention belongs to the technical field of machine tools, and relates to a numerically controlled machine tool.

Background technique

At present, the ordinary CNC on the market has poor processing flexibility, and it is difficult to process some relatively small parts with special complex structure, such as the case of a watch, and the processing efficiency is also low. In addition, the tool change of this CNC machine tool is not convenient enough, and the tool change speed is slow, which further reduces the processing efficiency. Therefore, it is necessary to design a CNC machine tool to solve the above technical problems.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a numerically controlled machine tool with flexible processing and high processing efficiency, which can process particularly complex and relatively small parts.

In order to solve the above technical problems, the technical scheme adopted in the present invention is: a numerically controlled machine tool, including a machine base;

The machine base is provided with a main shaft seat, the main shaft seat is provided with a main shaft with a chuck, an XY axis drive assembly is arranged on the machine base, and the output end of the XY axis drive assembly is provided with a tool rest, so the The tool holder is provided with a machining tool, the machine base is provided with a ZH-axis drive assembly, the output end of the ZH-axis drive assembly is provided with a first sub-spindle seat, and the first sub-spindle seat is provided with a belt clip The first sub-spindle of the disc, the stand is provided with a vertical block near the main shaft, the vertical block is provided with an L-axis drive mechanism, and the output end of the L-axis drive mechanism is provided with a second sub-spindle seat , the second sub-spindle seat is provided with a second sub-spindle with a chuck;

One side of the vertical block on the base is provided with a tool magazine disk, the tool magazine disk corresponds to the front and rear of the second sub-spindle, and the tool magazine disk on the vertical block corresponds to the second sub-spindle There is a tool changing mechanism in between.

Further, the tool changing mechanism includes a tool changing arm, a connecting shaft, a tool changing cylinder, and a tool changing motor, the connecting shaft can be rotatably installed on the vertical block, and the connecting shaft can be on the vertical block along its axial direction. The two ends of the connecting shaft protrude from the two sides of the vertical block respectively, the tool changing mechanism further includes a mounting frame, the tool changing cylinder and the tool changing motor are respectively installed on the mounting frame, so The push-pull shaft of the tool changing cylinder is connected with the vertical block, the rotating shaft of the tool changing motor is connected with one end of the connecting shaft, the tool changing arm is arranged on the other end of the connecting shaft, and the vertical block A support plate is arranged below the mounting frame, the mounting frame is mounted on the support plate through a pair of linear guide rails, and the mounting frame can move left and right on the support plate, thereby making the tool change cylinder and tool change The motor can move left and right.

Further, both ends of the tool changing arm are respectively provided with a first clamping hook and a second clamping hook for clamping the tool, and the first clamping hook and the second clamping hook are in opposite directions.

Further, the XY-axis drive assembly includes an X-axis drive mechanism and a Y-axis drive mechanism; the X-axis drive mechanism includes an X-axis motor, an X-axis screw nut pair, an X-axis linear guide pair, and an X-axis support plate, so The X-axis motor is installed on the machine base, the X-axis support plate is installed on the machine base obliquely backward through the X-axis linear guide rail pair, and the X-axis motor drives the X-axis through the X-axis screw nut pair. The shaft support plate moves left and right along the X-axis direction; the Y-axis drive mechanism includes a Y-axis motor, a Y-axis screw nut pair, a Y-axis linear guide pair and a Y-axis support plate, and the Y-axis motor is installed on the X-axis. Axle support plate, the Y-axis support plate is installed on the X-axis support plate inclined backward through the Y-axis linear guide pair, and the Y-axis motor drives the Y-axis support plate along the Y axis through the Y-axis screw nut pair. The axis direction moves up and down obliquely, and the tool holder is mounted on the Y-axis support plate.

Further, the ZH-axis drive mechanism includes a Z-axis drive mechanism and an H-axis drive mechanism; the Z-axis drive mechanism includes a Z-axis motor, a Z-axis screw nut pair, a Z-axis linear guide rail pair, and a Z-axis support plate. The Z-axis motor is installed on the base, the Z-axis support plate is installed on the base through the Z-axis linear guide rail pair, and the Z-axis motor drives the Z-axis support plate along the Z-axis screw nut pair through the Z-axis screw nut pair. Move forward and backward in the Z-axis direction; the H-axis drive mechanism includes an H-axis motor, an H-axis screw nut pair, an H-axis linear guide pair and an H-axis support plate, and the H-axis motor is installed on the Z-axis support plate, The H-axis support plate is mounted on the Z-axis support plate through the H-axis linear guide rail pair, and the H-axis motor drives the H-axis support plate to move left and right along the H-axis direction through the H-axis screw nut pair, so The first sub-spindle seat is mounted on the H-axis support plate.

Further, the L-axis drive mechanism includes an L-axis motor, an L-axis screw nut pair, and an L-axis linear guide rail pair, the L-axis motor is mounted on the vertical block, and the second sub-spindle seat passes through the L-axis linear guide rail. The pair is mounted on the vertical block, and the L-axis motor drives the second sub-spindle seat to move up and down along the L-axis direction through the L-axis screw nut pair, and then drives the second sub-spindle to move up and down.

Further, the second sub-spindle is close to the main shaft, and the main shaft is parallel to the first sub-spindle and the second sub-spindle, respectively.

Further, the stand is provided with an upright protective plate, and the protective plate is close to the back of the stand.

Beneficial effects of the present invention: the numerical control machine tool of the present invention has a novel structure, which is provided with a main shaft, a first sub-spindle and a second sub-spindle, the tool rest can move left and right, up and down obliquely, and the first sub-spindle can move back and forth, left and right , the second sub-spindle can move up and down, so the CNC machine tool can realize five-axis linkage processing, the processing is more flexible, the processing efficiency is also high, and it can process special complex and small parts, which meets the needs of customers. In addition, the numerical control machine tool is equipped with a tool change mechanism for changing the tool of the second sub-spindle, which does not require manual tool change during processing, and the tool change is convenient and fast, which improves the processing efficiency and the automation level.

Description of drawings

FIG. 1 is a first perspective view of a numerically controlled machine tool according to an embodiment of the present invention.

FIG. 2 is a second perspective view of the numerically controlled machine tool according to the embodiment of the present invention.

FIG. 3 is an enlarged view of A in FIG. 1 .

FIG. 4 is an enlarged view of B in FIG. 2 .

FIG. 5 is a front view of a numerically controlled machine tool according to an embodiment of the present invention.

FIG. 6 is a left side view of FIG. 5 .

FIG. 7 is a plan view of FIG. 5 .

Description of reference numbers:

Machine base 1, main shaft 2, first sub-spindle 3, ZH-axis drive assembly 4, second sub-spindle 5, L-axis drive mechanism 6, tool changing mechanism 7, tool magazine plate 8, tool rest 9, XY-axis drive assembly 10 ;

protective plate 11, vertical block 12;

support plate 121;

Spindle seat 21;

The first sub-spindle seat 31;

Z-axis drive mechanism 41, H-axis drive mechanism 42;

Z-axis support plate 411, H-axis motor 421, H-axis support plate 422;

The second sub-spindle seat 51;

L-axis motor 61;

Tool changing arm 71, connecting shaft 72, tool changing motor 73, tool changing cylinder 74, mounting frame 75;

The first clamping hook 711, the second clamping hook 712;

Horizontal plate 751, vertical plate 752;

X-axis drive mechanism 101, Y-axis drive mechanism 102

X-axis motor 1011, X-axis support plate 1012;

Y-axis motor 1021 and Y-axis support plate 1022 .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in FIG. 1 , FIG. 2 , and FIGS. 5-7 , in the numerical control machine tool of this embodiment, the numerical control machine tool includes a machine base 1 .

A main shaft seat 21 is installed on the machine base 1, and a main shaft 2 with a chuck is installed on the main shaft seat 21. An XY-axis drive assembly 10 is mounted on the machine base 1 , and the XY-axis drive assembly 10 includes an X-axis drive mechanism 101 and a Y-axis drive mechanism 102 . The X-axis drive mechanism 101 includes an X-axis motor 1011, an X-axis screw nut pair, an X-axis linear guide rail pair, and an X-axis support plate 1012. The X-axis motor 1011 is installed on the machine base 1, and the X-axis support plate 1012 passes through the X-axis linear guide rail. The pair is installed on the machine base 1 inclined backward, and the X-axis motor 1011 drives the X-axis support plate 1012 to move left and right along the X-axis direction through the X-axis screw nut pair. The Y-axis drive mechanism 102 includes a Y-axis motor 1021, a Y-axis screw nut pair, a Y-axis linear guide rail pair, and a Y-axis support plate 1022. The Y-axis motor 1021 is mounted on the X-axis support plate 1012, and the Y-axis support plate 1022 passes through the Y-axis. The linear guide rail pair is installed on the X-axis support plate 1012 inclined backward, the Y-axis motor 1021 drives the Y-axis support plate 1022 to move up and down in the Y-axis direction through the Y-axis screw nut pair, and the tool holder 9 is installed on the Y-axis On the pallet 1022, a machining tool is installed on the tool holder 9. Therefore, the XY-axis drive assembly 10 can drive the tool holder 9 to move left and right, obliquely up and down.

A ZH-axis drive assembly 4 is installed on the machine base 1 , and the ZH-axis drive mechanism 42 includes a Z-axis drive mechanism 41 and an H-axis drive mechanism 42 . The Z-axis drive mechanism 41 includes a Z-axis motor, a Z-axis screw nut pair, a Z-axis linear guide rail pair, and a Z-axis support plate 411. The Z-axis motor is installed on the base 1, and the Z-axis support plate 411 is installed through the Z-axis linear guide rail pair. In the base 1, the Z-axis motor drives the Z-axis support plate 411 to move forward and backward along the Z-axis direction through the Z-axis screw nut pair. The H-axis drive mechanism 42 includes an H-axis motor 421, an H-axis screw nut pair, an H-axis linear guide rail pair, and an H-axis support plate 422. The H-axis motor 421 is mounted on the Z-axis support plate 411, and the H-axis support plate 422 passes through the H-axis. The linear guide rail pair is installed on the Z-axis support plate 411, the H-axis motor 421 drives the H-axis support plate 422 to move left and right along the H-axis direction through the H-axis screw nut pair, and the first sub-spindle seat 31 is installed on the H-axis support plate 422 , the first sub-spindle 3 with a chuck is mounted on the first sub-spindle seat 31 . Therefore, the ZH shaft drive assembly 4 can drive the first sub-spindle 3 to move forward and backward and left and right.

A vertical block 12 is installed on the machine base 1 near the main shaft 2 , and an L-axis drive mechanism 6 is installed on the vertical block 12 . The L-axis drive mechanism 6 includes an L-axis motor 61, an L-axis screw nut pair, and an L-axis linear guide pair. The L-axis motor 61 is mounted on the vertical block 12, and the second sub-spindle seat 51 is mounted on the vertical block through the L-axis linear guide pair. Block 12, the L-axis motor 61 drives the second sub-spindle base 51 to move up and down along the L-axis direction through the L-axis screw nut pair. The motor 61 drives the second sub-spindle base 51 to move up and down along the L-axis direction through the L-axis screw nut pair, and then drives the second sub-spindle 5 to move up and down along the L-axis direction.

A tool magazine plate 8 is installed on one side of the vertical block 12 on the machine base 1. The tools on the tool magazine plate 8 can be driven and rotated by the motor of the tool magazine plate 8. The tool magazine plate 8 corresponds to the front and rear of the second sub-spindle 5. The vertical block 12 A tool changing mechanism 7 for changing tools of the second sub-spindle 5 is installed between the upper tool magazine plate 8 and the second sub-spindle 5 . 3 and 4 , the tool changing mechanism 7 includes a tool changing arm 71 , a connecting shaft 72 , a tool changing cylinder 74 , and a tool changing motor 73 . The upper part moves left and right along its axial direction, and the two ends of the connecting shaft 72 respectively protrude from the two sides of the vertical block 12 . The tool changing mechanism 7 also includes a mounting frame 75 . The mounting frame 75 is provided with a bottom plate 751 and a vertical plate 752 , one end of the vertical plate 752 is fixed on the bottom plate 751 , and the tool changing cylinder 74 and the tool changing motor 73 are respectively installed on the vertical positions of the mounting frame 75 . On the plate 752 , the push-pull shaft of the tool changing cylinder 74 is connected to one side of the vertical block 12 , the rotating shaft of the tool changing motor 73 is connected to one end of the connecting shaft 72 , and the tool changing arm 71 is installed on the other end of the connecting shaft 72 . A support plate 121 is installed under the mounting bracket 75 on the vertical block 12. The bottom plate 751 of the mounting bracket 75 is installed on the support plate 121 through a pair of linear guide rails. 74 can drive the tool changing motor 73, the connecting shaft 72 and the tool changing arm 71 to move left and right. Preferably, both ends of the tool changing arm 71 are respectively machined with a first clamping hook 711 and a second clamping hook 712 for clamping the tool, and the first clamping hook 711 and the second clamping hook 712 are in opposite directions.

The working principle of the tool changing mechanism 7 is that the tool changing arm 71 is in a vertical state before the tool changing, and when the second sub-spindle 5 needs to change the tool, the tool changing motor 73 drives the tool changing arm 71 to rotate 90° clockwise (from right to left). see), the first clamping hook 711 and the second clamping hook 712 of the tool changing arm 71 respectively hook and clamp the tool sent from the tool magazine plate 8 and the tool on the second sub-spindle 5, as shown in FIG. The second sub-spindle 5 releases the tool, and the tool-changing cylinder 74 drives the connecting shaft 72 to move to the right, thereby driving the tool-changing arm 71 to move in the right direction. The tool is removed, the tool change motor 73 drives the connecting shaft 72 to rotate 180° clockwise (viewed from right to left), and then the tool change cylinder 74 drives the tool change arm 71 to move to the left. When the tool change arm 71 moves to the left in place The tool taken out from the tool magazine plate 8 is sent to the chuck of the second sub-spindle 5, the chuck clamps the tool, and the tool taken out from the second sub-spindle 5 is sent to the tool magazine plate 8, and the tool magazine plate 8 stores the tool Income, finally the tool changing motor 73 drives the tool changing arm 71 to rotate 90° counterclockwise (viewed from right to left), at this time the tool changing arm 71 is in the reset state.

In a preferred design scheme, the second sub-spindle 5 is close to the main shaft 2, and the main shaft 2 is parallel to the first sub-spindle 3 and the second sub-spindle 5 respectively.

In a preferred design scheme, in order to improve safety, a standing protective plate 11 is fixed on the machine base 1 , and the protective plate 11 is close to the back of the machine base 1 .

Tool magazine plate 8, tool holder 9, X-axis screw nut pair, X-axis linear guide pair, Y-axis screw nut pair, Y-axis linear guide pair, Z-axis screw nut pair, Z-axis linear guide pair, H-axis The screw nut pair, the H-axis linear guide rail pair, the L-axis screw nut pair, and the L-axis linear guide rail pair are in the prior art, and therefore will not be described in detail in this embodiment.

The numerical control machine tool of the present invention has a novel structure. It is provided with a main shaft, a first sub-spindle and a second sub-spindle. The tool rest can move left and right, up and down obliquely, the first sub-spindle can move back and forth, left and right, and the second sub-spindle It can move up and down, so the CNC machine tool can realize five-axis linkage processing, the processing is more flexible, and the processing efficiency is also high. It can process special complex and small parts, which meets the needs of customers. In addition, the numerical control machine tool is equipped with a tool change mechanism for changing the tool of the second sub-spindle, which does not require manual tool change during processing, and the tool change is convenient and fast, which improves the processing efficiency and the automation level.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (8)

1. A numerically controlled machine tool, comprising a machine base (1), characterized in that: The machine base (1) is provided with a spindle base (21), the spindle base (21) is provided with a spindle (2) with a chuck, and the machine base (1) is provided with an XY axis drive assembly ( 10), the output end of the XY axis drive assembly (10) is provided with a tool rest (9), the tool rest (9) is provided with a machining tool, and the machine base (1) is provided with a ZH axis drive assembly (4), the output end of the ZH shaft drive assembly (4) is provided with a first sub-spindle seat (31), and the first sub-spindle seat (31) is provided with a first sub-spindle (3) with a chuck ), a vertical block (12) is provided on the machine base (1) near the main shaft (2), and an L-axis driving mechanism (6) is provided on the vertical block (12), and the L-axis driving mechanism The output end of (6) is provided with a second sub-spindle seat (51), and a second sub-spindle (5) with a chuck is arranged on the second sub-spindle seat (51); A tool magazine disc (8) is provided on one side of the vertical block (12) on the machine base (1), and the tool magazine disc (8) corresponds to the front and rear of the second sub-spindle (5). A tool changing mechanism (7) is arranged between the tool magazine disc (8) and the second sub-spindle (5) on the vertical block (12). 2. A numerically controlled machine tool according to claim 1, characterized in that the tool changing mechanism (7) comprises a tool changing arm (71), a connecting shaft (72), a tool changing cylinder (74), a tool changing motor (73), the connecting shaft (72) is rotatably mounted on the vertical block (12), the connecting shaft (72) can move on the vertical block (12) along its axial direction, and the connecting shaft (72) ) protrudes from both sides of the vertical block (12) respectively, the tool changing mechanism (7) further comprises a mounting frame (75), the tool changing cylinder (74), the tool changing motor (73) respectively installed on the mounting frame (75), the push-pull shaft of the tool changing cylinder (74) is connected with the vertical block (12), and the rotating shaft of the tool changing motor (73) is connected with the connecting shaft (72) ), the tool change arm (71) is arranged on the other end of the connecting shaft (72), and a support plate (121) is arranged below the mounting bracket (75) on the vertical block (12). ), the mounting bracket (75) is mounted on the support plate (121) through a pair of linear guide rails, and the mounting bracket (75) can move left and right on the support plate (121), thereby making the tool change cylinder ( 74) and the tool change motor (73) can move left and right. 3. A CNC machine tool according to claim 2, characterized in that, both ends of the tool changing arm (71) are respectively provided with a first clamping hook (711) and a second clamping hook (711) for clamping the tool. 712), the directions of the first clamping hook (711) and the second clamping hook (712) are opposite. 4. A numerically controlled machine tool according to claim 1, wherein the XY-axis drive assembly (10) comprises an X-axis drive mechanism (101) and a Y-axis drive mechanism (102); the X-axis drive mechanism (101) comprises an X-axis motor (1011), an X-axis screw nut pair, an X-axis linear guide rail pair and an X-axis support plate (1012), the X-axis motor (1011) is mounted on the machine base (1), The X-axis support plate (1012) is installed on the machine base (1) obliquely backward through the X-axis linear guide rail pair, and the X-axis motor (1011) drives the X-axis support through the X-axis screw nut pair The plate (1012) moves left and right along the X-axis direction; the Y-axis drive mechanism (102) includes a Y-axis motor (1021), a Y-axis screw nut pair, a Y-axis linear guide rail pair and a Y-axis support plate (1022), The Y-axis motor (1021) is installed on the X-axis support plate (1012), and the Y-axis support plate (1022) is installed on the X-axis support plate (1012) in a backward inclined manner through a Y-axis linear guide rail pair , the Y-axis motor (1021) drives the Y-axis support plate (1022) to move up and down in the Y-axis direction through the Y-axis screw nut pair, and the tool holder (9) is installed on the Y-axis on the pallet (1022). 5. A numerically controlled machine tool according to claim 1, wherein the ZH-axis drive mechanism (42) comprises a Z-axis drive mechanism (41) and an H-axis drive mechanism (42); the Z-axis drive mechanism (41) comprising a Z-axis motor, a Z-axis screw nut pair, a Z-axis linear guide rail pair, and a Z-axis support plate (411), the Z-axis motor is mounted on the machine base (1), and the Z-axis support plate (411) The Z-axis linear guide rail pair is installed on the machine base (1), and the Z-axis motor drives the Z-axis support plate (411) to move forward and backward along the Z-axis direction through the Z-axis screw nut pair; The H-axis drive mechanism (42) includes an H-axis motor (421), an H-axis screw nut pair, an H-axis linear guide rail pair, and an H-axis support plate (422), and the H-axis motor (421) is mounted on the Z-axis The shaft support plate (411), the H-axis support plate (422) is mounted on the Z-axis support plate (411) through the H-axis linear guide rail pair, and the H-axis motor (421) passes through the H-axis screw nut pair The H-axis support plate (422) is driven to move left and right along the H-axis direction, and the first sub-spindle seat (31) is mounted on the H-axis support plate (422). 6. A CNC machine tool according to claim 1, wherein the L-axis drive mechanism (6) comprises an L-axis motor (61), an L-axis screw nut pair, an L-axis linear guide rail pair, and an L-axis The motor (61) is mounted on the vertical block (12), the second sub-spindle seat (51) is mounted on the vertical block (12) through the L-axis linear guide rail pair, and the L-axis motor (61) passes through The L-axis screw nut pair drives the second sub-spindle seat (51) to move up and down along the L-axis direction, and further drives the second sub-spindle (5) to move up and down. 7. A CNC machine tool according to claim 1, characterized in that, the second sub-spindle (5) is close to the main shaft (2), and the main shaft (2) is respectively connected to the first sub-spindle ( 3) and the second sub-spindle (5) are parallel to each other. 8. A numerically controlled machine tool according to claim 1, characterized in that, an upright protective plate (11) is provided on the machine base (1), and the protective plate (11) is close to the machine base (11). 1) on the back.

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