Cutter rest moving mechanism of numerical control machine tool

Abstract

The utility model discloses a tool rest moving mechanism of a numerical control machine tool, which comprises a lathe frame arranged on the machine tool; a tool holder assembly; the knife rest assembly is arranged on the Z-axis moving mechanism; the Z-axis moving mechanism is arranged on the Y-axis moving mechanism, and the Z-axis moving mechanism is arranged on the Y-axis moving mechanism; an X-axis moving mechanism, wherein the Y-axis moving mechanism is arranged on the X-axis moving mechanism; and the limiting mechanism is arranged between the Y-axis moving mechanism and the X-axis moving mechanism. The X-axis moving mechanism, the Y-axis moving mechanism and the Z-axis moving mechanism move in a matched mode to drive the tool rest assembly to automatically move in the numerical control machine tool, and practicability and convenience are achieved. The limiting mechanism is arranged between the Y-axis moving mechanism and the X-axis moving mechanism, it is guaranteed that the Y-axis moving mechanism only moves on the X-axis moving mechanism, the situation that due to excessive stroke, derailing is caused, and damage is caused is avoided, the stroke space of the Y axis can be adjusted by changing the mounting position of the limiting mechanism, and practicability and convenience are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool equipment, in particular to a tool rest moving mechanism for a numerical control machine tool. Background Art

[0002] CNC lathe is one of the most widely used CNC machine tools. It is mainly used for cutting inner and outer cylindrical surfaces of shaft parts or disc parts, inner and outer conical surfaces of arbitrary cone angles, complex rotary inner and outer curved surfaces, and cylindrical and conical threads, and can also perform grooving, drilling, reaming, boring and so on.

[0003] For example, the invention patent with publication number CN108972019A, entitled A CNC lathe machine tool structure with good stability, achieves the purpose of increasing the rigidity of the machine tool, improving the assembly accuracy and working stability through the integrated structure design of the head box and chassis; and sets sealed protective covers on the X, Y and Z axes to protect the three-axis screw rods from dust and dirty water, ensuring the service life of the machine tool. However, this solution still has at least the following defects:

[0004] There is no travel protection mechanism between the moving mechanisms of the X, Y and Z axes. When excessive travel occurs, it is easy to cause derailment and damage, which is very troublesome. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a tool rest moving mechanism for a numerically controlled machine tool.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A tool rest moving mechanism for a numerically controlled machine tool comprises:

[0008] Lathe frame, mounted on the machine tool;

[0009] A tool holder assembly, movably arranged on the lathe frame;

[0010] A Z-axis moving mechanism, used for driving the tool holder assembly to move along the Z-axis, and the tool holder assembly is arranged on the Z-axis moving mechanism;

[0011] A Y-axis moving mechanism, used for driving the tool holder assembly to move along the Y-axis, and the Z-axis moving mechanism is arranged on the Y-axis moving mechanism;

[0012] An X-axis moving mechanism is used to drive the tool holder assembly to move along the X-axis, and the Y-axis moving mechanism is arranged on the X-axis moving mechanism;

[0013] The limiting mechanism is arranged between the Y-axis moving mechanism and the X-axis moving mechanism, and is used to prevent the Y-axis moving mechanism from being separated from the X-axis moving mechanism.

[0014] In the tool rest moving mechanism of a CNC machine tool as described above, the limiting mechanism includes a guide track arranged on the Y-axis moving mechanism, a mounting member arranged on the X-axis moving mechanism, and a limiting member installed on the mounting member and capable of being inserted into the guide track and sliding.

[0015] In the tool rest moving mechanism for a CNC machine tool as described above, the mounting member can be detachably mounted on the X-axis moving mechanism, and the limiting member can be detachably mounted on the mounting member.

[0016] In the tool rest moving mechanism for a numerically controlled machine tool as described above, a limiting sliding groove into which the limiting member can be embedded is further provided on the guide rail.

[0017] In the tool rest moving mechanism for a CNC machine tool as described above, the guide rail can be detachably mounted on one side of the X-axis moving mechanism.

[0018] As described above, the tool holder moving mechanism of a CNC machine tool, the X-axis moving mechanism includes an X-axis guide rail arranged on the lathe frame, an X-axis moving seat slidably arranged on the X-axis guide rail, and an X-axis screw rod group arranged on the X-axis guide rail for driving the X-axis moving seat to move.

[0019] As described above, the tool holder moving mechanism of a CNC machine tool, the Y-axis moving mechanism includes a Y-axis slide seat arranged on the X-axis moving seat, a Y-axis slide rail group slidably arranged on the Y-axis slide seat, and a Y-axis screw rod group arranged between the Y-axis slide rail group and the Y-axis slide seat for driving the Y-axis slide rail group to slide.

[0020] A tool holder moving mechanism for a CNC machine tool as described above, the Z-axis moving mechanism includes a Z-axis slide rail group arranged at one end of the Y-axis slide rail group, a Z-axis sliding seat slidably arranged on the Z-axis slide rail group, and a Z-axis screw rod group arranged on the Z-axis slide rail group for driving the Z-axis sliding seat to move, and the tool holder assembly is arranged on the Z-axis sliding seat.

[0021] In the tool rest moving mechanism for a CNC machine tool as described above, reinforcing ribs are further provided between the Z-axis slide rail assembly and the Y-axis slide rail assembly.

[0022] In the tool rest moving mechanism for a numerically controlled machine tool as described above, a headstock is further provided on the lathe frame at one side of the tool rest assembly.

[0023] The beneficial effects of the utility model are as follows: the application has a simple structure, and the tool holder assembly is driven to automatically move in the CNC machine tool through the coordinated movement of the X-axis moving mechanism, the Y-axis moving mechanism and the Z-axis moving mechanism, which is practical and convenient; a limit mechanism is set between the Y-axis moving mechanism and the X-axis moving mechanism to ensure that the Y-axis moving mechanism only moves on the X-axis moving mechanism, thereby avoiding damage caused by derailment due to excessive travel, and by changing the installation position of the limit mechanism, the travel space of the Y-axis can be adjusted, which is convenient for subsequent processing actions, and is practical and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is one of the structural schematic diagrams of a tool holder moving mechanism for a CNC machine tool according to an embodiment of the utility model.

[0026] Figure 2 This is one of the structural exploded views of a tool holder moving mechanism for a CNC machine tool according to an embodiment of the utility model.

[0027] Figure 3 This is the second structural schematic diagram of a tool holder moving mechanism for a CNC machine tool according to an embodiment of the utility model (the lathe frame and part of the X-axis moving mechanism structure are omitted). DETAILED DESCRIPTION

[0028] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] See also Figures 1 to 3 As shown, the embodiment of the present application provides a CNC machine tool tool holder moving mechanism, including:

[0030] A lathe frame 1, mounted on a machine tool;

[0031] A tool holder assembly 2, movably arranged on the lathe frame 1;

[0032] A Z-axis moving mechanism 3, used for driving the tool holder assembly 2 to move along the Z-axis, and the tool holder assembly 2 is arranged on the Z-axis moving mechanism 3;

[0033] A Y-axis moving mechanism 4 is used to drive the tool holder assembly 2 to move along the Y-axis, and the Z-axis moving mechanism 3 is arranged on the Y-axis moving mechanism 4;

[0034] An X-axis moving mechanism 5 is used to drive the tool holder assembly 2 to move along the X-axis, and the Y-axis moving mechanism 4 is arranged on the X-axis moving mechanism 5;

[0035] The limiting mechanism 6 is disposed between the Y-axis moving mechanism 4 and the X-axis moving mechanism 5 , and is used to prevent the Y-axis moving mechanism 4 from being separated from the X-axis moving mechanism 5 .

[0036] Through the coordinated movement of the X-axis moving mechanism 5, the Y-axis moving mechanism 4 and the Z-axis moving mechanism 3, the tool holder assembly 2 is driven to automatically move in the CNC machine tool, which is practical and convenient; a limit mechanism is set between the Y-axis moving mechanism 4 and the X-axis moving mechanism 5 to ensure that the Y-axis moving mechanism 4 only moves on the X-axis moving mechanism 5 to avoid damage caused by derailment due to excessive travel, and by changing the installation position of the limit mechanism 6, the travel space of the Y-axis can be adjusted to facilitate subsequent processing actions, which is practical and convenient.

[0037] Furthermore, the limiting mechanism 6 includes a guide rail 61 provided on the Y-axis moving mechanism 4, a mounting member 62 provided on the X-axis moving mechanism 5, and a limiting member 63 installed on the mounting member 62 and capable of being inserted into and slid in the guide rail 61. Specifically, a limiting sliding groove 610 is also provided on the guide rail 61 in which the limiting member 63 can be embedded.

[0038] The limiter 63 slides in the limiter slot 610. When the Y-axis moving mechanism 4 moves to the front and rear ends of the Y-axis, the limiter 63 presses against the two ends of the limiter slot 610 and stops sliding, thereby limiting the Y-axis moving mechanism 4 from continuing to move, ensuring that the Y-axis moving mechanism 4 only moves on the X-axis moving mechanism 5, avoiding damage caused by derailment due to excessive travel.

[0039] Further, the mounting member 62 is detachably mounted on the X-axis moving mechanism 5, and the limiting member 63 is detachably mounted on the mounting member 62. The mounting member 62 and the limiting member 63 are arranged to be detachably mounted, so that the mounting position of the mounting member 62 on the X-axis moving mechanism 5 and the mounting position of the limiting member 63 on the mounting member 62 can be easily changed, thereby adjusting the limiting position of the limiting member 63, which is practical and convenient.

[0040] Further, the guide rail 61 is detachably mounted on one side of the X-axis moving mechanism 5. The guide rail 61 is detachably mounted, and guide rails 61 of different lengths can be easily replaced, so as to adjust the moving stroke of the Y-axis moving mechanism 4, which is practical and convenient.

[0041] Furthermore, the X-axis moving mechanism 5 includes an X-axis guide rail 51 arranged on the lathe frame 1, an X-axis moving seat 52 slidably arranged on the X-axis guide rail 51, and an X-axis screw rod group 53 arranged on the X-axis guide rail 51 for driving the X-axis moving seat 52 to move.

[0042] The X-axis moving seat 52 is driven to slide on the X-axis guide rail 51 through the X-axis screw rod group 53, thereby driving the tool holder assembly 2 to move in the X-axis direction, which is practical and convenient.

[0043] Furthermore, the Y-axis moving mechanism 4 includes a Y-axis slide seat 41 arranged on the X-axis moving seat 52, a Y-axis slide rail group 42 slidably arranged on the Y-axis slide seat 41, and a Y-axis screw group 43 arranged between the Y-axis slide rail group 42 and the Y-axis slide seat 41 for driving the Y-axis slide rail group 42 to slide.

[0044] The Y-axis guide rail assembly 42 is driven to slide on the Y-axis guide slot seat 41 by the Y-axis lead screw assembly 43, thereby driving the tool holder assembly 2 to move in the Y-axis direction, which is practical and convenient.

[0045] Furthermore, the Z-axis moving mechanism 3 includes a Z-axis slide rail group 31 arranged at one end of the Y-axis slide rail group 42, a Z-axis sliding seat 32 slidably arranged on the Z-axis slide rail group 31, and a Z-axis screw rod group 33 arranged on the Z-axis slide rail group 31 for driving the Z-axis sliding seat 32 to move, and the tool holder assembly 2 is arranged on the Z-axis sliding seat 32.

[0046] The Z-axis sliding seat 32 is driven to slide on the Z-axis slide rail assembly 31 by the Z-axis screw rod assembly 33, thereby driving the tool holder assembly 2 to move in the Z-axis direction, which is practical and convenient.

[0047] Furthermore, a reinforcing rib 7 is provided between the Z-axis slide rail assembly 31 and the Y-axis slide rail assembly 42 .

[0048] Furthermore, a headstock box 8 is provided on the lathe frame 1 at one side of the tool holder assembly 2 .

[0049] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure made using the contents of the specification and drawings of the present invention, or directly or indirectly used in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A tool rest moving mechanism for a CNC machine tool, characterized in that: Included are: A lathe frame (1), mounted on a machine tool; A tool holder assembly (2) movably mounted on the lathe frame (1); A Z-axis moving mechanism (3) for driving the tool holder assembly (2) to move along the Z-axis, and the tool holder assembly (2) is arranged on the Z-axis moving mechanism (3); A Y-axis moving mechanism (4) is used to drive the tool holder assembly (2) to move along the Y-axis, and the Z-axis moving mechanism (3) is arranged on the Y-axis moving mechanism (4); An X-axis moving mechanism (5) is used to drive the tool holder assembly (2) to move along the X-axis, and the Y-axis moving mechanism (4) is arranged on the X-axis moving mechanism (5); A limiting mechanism (6) is arranged between the Y-axis moving mechanism (4) and the X-axis moving mechanism (5) and is used to prevent the Y-axis moving mechanism (4) from being separated from the X-axis moving mechanism (5).

2. The tool rest moving mechanism for a CNC machine tool according to claim 1, characterized in that: The limiting mechanism (6) comprises a guide rail (61) provided on the Y-axis moving mechanism (4), a mounting member (62) provided on the X-axis moving mechanism (5), and a limiting member (63) installed on the mounting member (62) and capable of being inserted into the guide rail (61) and slidingly moved.

3. The tool rest moving mechanism for a CNC machine tool according to claim 2, characterized in that: The mounting member (62) can be detachably mounted on the X-axis moving mechanism (5), and the limiting member (63) can be detachably mounted on the mounting member (62).

4. The tool rest moving mechanism for a CNC machine tool according to claim 2, characterized in that: The guide rail (61) is also provided with a limiting sliding groove (610) into which the limiting member (63) can be embedded.

5. The tool rest moving mechanism for a CNC machine tool according to claim 2, characterized in that: The guide rail (61) is detachably mounted on one side of the X-axis moving mechanism (5).

6. The tool rest moving mechanism for a CNC machine tool according to claim 1, characterized in that: The X-axis moving mechanism (5) comprises an X-axis guide rail (51) arranged on the lathe frame (1), an X-axis moving seat (52) slidably arranged on the X-axis guide rail (51), and an X-axis screw rod group (53) arranged on the X-axis guide rail (51) and used for driving the X-axis moving seat (52) to move.

7. The tool rest moving mechanism for a CNC machine tool according to claim 6, characterized in that: The Y-axis moving mechanism (4) comprises a Y-axis slide groove seat (41) arranged on the X-axis moving seat (52), a Y-axis slide rail group (42) slidably arranged on the Y-axis slide groove seat (41), and a Y-axis screw rod group (43) arranged between the Y-axis slide rail group (42) and the Y-axis slide groove seat (41) for driving the Y-axis slide rail group (42) to slide.

8. The tool rest moving mechanism for a CNC machine tool according to claim 7, characterized in that: The Z-axis moving mechanism (3) comprises a Z-axis slide rail group (31) arranged at one end of the Y-axis slide rail group (42), a Z-axis sliding seat (32) slidably arranged on the Z-axis slide rail group (31), and a Z-axis screw rod group (33) arranged on the Z-axis slide rail group (31) for driving the Z-axis sliding seat (32) to move, and the tool holder assembly (2) is arranged on the Z-axis sliding seat (32).

9. The tool rest moving mechanism for a CNC machine tool according to claim 8, characterized in that: A reinforcing rib (7) is also provided between the Z-axis slide rail group (31) and the Y-axis slide rail group (42).

10. The tool rest moving mechanism for a CNC machine tool according to claim 1, characterized in that: A headstock box (8) is also provided on the lathe frame (1) at one side of the tool holder assembly (2).

Images