Adjustable turning tool of numerical control machine tool

Abstract

The utility model relates to an adjustable turning tool of a numerical control machine tool, belongs to the technical field of machine tool cutters, and aims to solve the problems that the production cost is high as a tool bit of the turning tool is damaged and the whole turning tool needs to be replaced when the conventional numerical control machine tool is used for machining threads, the angle of the tool bit of the conventional turning tool is fixed, and the production efficiency is low when the threads with different lead angles are machined. The tool comprises a tool handle, a tool apron and a tool bit, the tool apron is provided with a mounting station, and the tool bit is detachably mounted on the mounting station; a tool apron is rotationally installed at one end of the tool handle, an adjusting assembly is installed between the tool handle and the tool apron, and the tool handle adjusts the rotating angle of the tool apron relative to the tool handle through the adjusting assembly. According to the turning tool, the tool bit is detachably installed on the tool apron of the turning tool, so that only the tool bit is replaced after the tool bit is abraded, the whole turning tool does not need to be replaced, and cost is reduced. Meanwhile, the turning tool is further provided with the adjusting assembly, the angle of the tool bit can be adjusted, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to an adjustable turning tool for a numerically controlled machine tool, belonging to the technical field of machine tool tools. Background Art

[0002] CNC machine tools, short for digitally controlled machine tools, are automated machine tools equipped with a program control system. This control system processes various control signals sent by the CNC device through calculations to control the movement of the machine tool and automatically process parts.

[0003] In the prior art, when using CNC machine tools for thread machining, because existing turning tools only have a single cutter head, machining threads with different helix angles requires equipping the cutterhead with multiple turning tools with different tip angles to process threads with different lead angles. This requires frequent tool replacement during machining, resulting in a cumbersome machining cycle and low production efficiency. Furthermore, because existing turning tools only have a single cutter head, which is a processing component and prone to wear and damage, damage to the cutter head necessitates replacement of the entire tool, leading to high production costs. For example, in the prior art, patent number CN212734200U, entitled "Turning Tool," the tool head and handle are secured together by a fixing bolt, and the rear end of the handle can be connected to another handle to accommodate different tool holders. Therefore, a turning tool for a CNC machine tool is needed to address the problems of existing CNC machine tools, such as the need to replace the entire tool head when the tool head is damaged, resulting in high production costs, and the low production efficiency when machining threads with different lead angles, due to the fixed cutter head angle of existing turning tools. Utility Model Content

[0004] The purpose of the utility model is to provide an adjustable turning tool for a CNC machine tool to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adjustable turning tool for a CNC machine tool, comprising a tool holder, a tool seat and a tool head, wherein an installation station is provided on the tool seat, and the tool head is detachably installed on the installation station; the tool seat is rotatably installed on one end of the tool holder, and an adjustment assembly is installed between the tool holder and the tool seat, and the tool holder is used to adjust the angle of rotation of the tool seat relative to the tool holder through the adjustment assembly.

[0006] Specifically, a mounting hole is provided on the cutter seat to form an installation station; the cutter head is detachably mounted in the mounting hole by means of mounting bolts.

[0007] Specifically, the cutter head includes a cutter head body and a plurality of cutting blades; the cutting blades are evenly spaced on the cutter head body, and the cutter head body and the cutting blades are integrally formed.

[0008] Specifically, the tool holder is rotatably mounted on the end of the tool handle with the tool handle axis as the axis.

[0009] Specifically, the adjustment assembly includes a pin and a locking piece; the pin is fixedly installed on the knife seat, and the end of the knife handle is recessed inward to form a mounting groove. The knife seat is rotatably installed in the mounting groove through the pin and is rotatably connected to the knife handle; the locking piece is installed on the knife handle to limit the rotational movement of the knife seat in the mounting groove.

[0010] Specifically, the groove wall of the mounting groove of the tool handle near the groove top is concave inward in the direction away from the axis of the tool handle, forming an annular guide groove with a groove depth larger than the groove depth of the mounting groove; a number of strip guide blocks are provided at intervals along the circumference at positions corresponding to the annular guide groove on the plug column; the strip guide blocks are rotatably installed in the annular guide groove.

[0011] Specifically, a rotating frame is rotatably mounted on the bottom of the mounting groove of the tool handle; a compression spring is fixedly mounted on the rotating frame, and one end of the compression spring away from the rotating frame is fixedly connected to the plug post.

[0012] Specifically, the width of the annular guide groove is greater than the width of the strip guide block; the strip guide block is slidably installed in the annular guide groove in a direction parallel to the axis of the tool handle, and is rotatably installed in the annular guide groove with the axis of the tool handle as the axis.

[0013] Specifically, the locking part includes a locking screw; a screw hole is provided on the tool handle at a position corresponding to the tool holder plug column, the screw hole is connected to the mounting groove, and an internal thread is provided in the hole, and an external thread is provided on the outside of the locking screw. The locking screw is threadedly connected with the internal thread through the external thread and is rotatably installed in the screw hole, and its end facing the plug column forms a locking part, and the locking screw is stopped at the plug column through the locking part to limit the rotational movement of the tool holder in the mounting groove.

[0014] Specifically, the locking member also includes two fixing rings and latch teeth; the two fixing rings are fixedly installed on the knife handle and the knife seat respectively; the two fixing rings are arranged opposite to each other, and a number of latch teeth are evenly spaced on the ring surfaces on the opposite side of the fixing rings; the knife seat and the knife handle are fitted with each other through the two fixing rings, and the latch teeth on the relative ring surfaces engage with each other and stop, thereby locking each other.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This application realizes that after the cutter head is worn, only the cutter head can be replaced without replacing the entire turning tool by detachably installing the cutter head on the tool holder of the turning tool, thereby effectively reducing the consumables and usage costs of the turning tool and improving resource utilization.

[0017] 2. Based on the above, the cutter head of the present application is provided with multiple cutting edges, which increases the number of times the cutter head can be used, reduces the need to frequently replace the entire turning tool due to cutter head wear, and further reduces production costs.

[0018] 3. On the basis of the above, the existing turning tools are often unable to adapt to changes in the helix angle due to the fixed angle of the cutter head. When processing threads with different helix angles, it is often necessary to replace the blade or directly replace the entire tool, which is very inconvenient to operate, reduces work efficiency, and increases the worker's operating workload and economic costs. The present application sets an adjustment component between the tool holder and the tool handle. The staff can adjust the angle of rotation of the tool holder relative to the tool handle through the adjustment component, and then adjust the processing angle of the cutter head. In addition, the locking piece set on the tool handle can fix the tool holder after adjusting to the appropriate angle. The cutter head can be adapted to different processing needs, expands the scope of application of the cutter head, improves the practicality of the cutter head, reduces the number of tool changes, greatly improves work efficiency, and reduces production costs. At the same time, the angle of the cutter head of the turning tool of the present application is adjustable, so that there is no need to prepare various blades or tools for processing workpieces with different helix angles, saving procurement costs.

[0019] 4. On the basis of the above, the present application further fixes the tool holder and the tool handle with fixed rings respectively, and a number of latches are provided on the relative ring surfaces of the two fixed rings so that when the tool holder and the tool handle are adjusted to a suitable angle and locked, the latches on the ring surfaces of the two fixed rings engage with each other to further lock the tool holder and the tool handle, thereby improving the locking force between the tool holder and the tool handle during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of the adjustable turning tool of the CNC machine tool of this embodiment;

[0021] Figure 2 This is a schematic structural diagram of the adjustable turning tool for a CNC machine tool according to this embodiment (the tool head is not shown);

[0022] Figure 3 This is a schematic diagram of the structure of the adjustable turning tool of the CNC machine tool of this embodiment (the adjustment component is shown in perspective);

[0023] Figure 4 for Figure 3 A magnified schematic diagram of point A;

[0024] Figure 5 Schematic diagram of the structure of the tool head of the adjustable turning tool of the CNC machine tool in this embodiment. DETAILED DESCRIPTION

[0025] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0026] See also Figure 1-Figure 5This embodiment discloses an adjustable turning tool for a CNC machine tool, comprising a tool holder 1, a tool seat 2 and a tool head 3. The tool seat 2 is provided with an installation station, and the tool head 3 is detachably installed on the installation station; one end of the tool holder is rotatably installed on the end of the tool holder with the tool holder axis as the axis, and an adjustment component 6 is installed between the tool holder and the tool seat, and the tool holder 1 is used to adjust the angle of rotation of the tool seat relative to the tool holder through the adjustment component.

[0027] The cutter head 2 of this embodiment is provided with a mounting hole 5 to form a mounting station; the cutter head 3 is detachably mounted in the mounting hole 5 by means of mounting bolts 4 .

[0028] Furthermore, the cutter head 3 of this embodiment includes a cutter head body 30 and three cutting edges 31 ; the three cutting edges 31 are evenly spaced and distributed on the cutter head body 30 , and the cutter head body and the cutting edges are integrally formed.

[0029] The adjustment assembly 6 of this embodiment includes a plug 60 and a locking member. The plug 60 is fixedly mounted on the blade holder, and the end of the blade handle is recessed inward to form a mounting groove 61. The blade holder 2 is rotatably mounted in the mounting groove 61 via the plug 60, thereby being rotatably connected to the blade handle. The locking member is mounted on the blade handle 1 to restrict the rotational movement of the blade holder within the mounting groove. In addition, the groove wall of the mounting groove of the blade handle of this embodiment is recessed inward near the groove top, away from the axis of the blade handle, to form an annular guide groove 62 with a groove depth greater than that of the mounting groove. A plurality of strip guide blocks 63 are provided at intervals along the circumference of the plug 60 at positions corresponding to the annular guide groove 62. The width of the annular guide groove is greater than the width of the strip guide blocks. The strip guide blocks are slidably mounted in the annular guide groove in a direction parallel to the axis of the blade handle and are rotatably mounted in the annular guide groove about the axis of the blade handle. In addition, a rotating frame 64 is rotatably mounted on the bottom of the mounting groove of the tool handle of this embodiment; a compression spring 65 is fixedly mounted on the rotating frame, and one end of the compression spring away from the rotating frame is fixedly connected to the plug post.

[0030] The locking member of this embodiment includes a locking screw 8; a screw hole is provided on the tool handle at a position corresponding to the tool holder plug post, the screw hole is connected to the mounting groove, and an internal thread is provided in the hole. An external thread is provided on the outer side of the locking screw. The locking screw is threadedly connected with the internal thread through the external thread and is rotatably installed in the screw hole. The end of the locking screw facing the plug post forms a locking portion. The locking screw is abutted against the plug post through the locking portion to limit the rotational movement of the tool holder in the mounting groove. The locking member of this embodiment also includes two fixing rings 66 and latching teeth 67; the two fixing rings 66 are fixedly installed on the tool handle and the tool holder respectively; the two fixing rings are arranged opposite to each other, and a plurality of latching teeth 67 are evenly spaced on the opposite side ring surfaces of the fixing rings; the tool holder and the tool handle are fitted together through the two fixing rings, and the latching teeth on the opposite ring surfaces mesh with each other and abut against each other, thereby locking each other.

[0031] Working Principle: When using the adjustable turning tool for a CNC machine tool of this embodiment, the operator secures the toolholder to the toolholder. The operator adjusts the angle of the cutter head by adjusting the assembly according to the type of thread and lead angle of the workpiece being machined. If a blade needs to be replaced during machining, the machine can be stopped, the operator loosens the mounting bolts, replaces the worn blade, and then installs the new blade of the cutter head into the machining position. This eliminates the need to replace the entire turning tool, resulting in convenient operation and minimal downtime. After the thread processing of the previous process is completed and the thread lead angle changes, the operator only needs to loosen the locking screw, and the column of the tool holder will slide away from the tool handle under the elastic action of the compression spring. However, due to the limiting action of the strip guide block on the column in the annular guide groove, the tool holder will not slide out of the mounting groove of the tool handle, and the teeth between the two fixing rings between the tool holder and the tool handle will separate. At this time, the operator can adjust the rotation angle of the tool holder and then adjust the angle of the tool head. After adjusting to the appropriate angle, press the column of the tool holder toward the tool handle until the teeth of the two fixing rings re-engage with each other and stop, and then tighten the locking screw to complete the adjustment of the tool head angle and continue with subsequent thread processing.

[0032] The above describes the implementation methods of the present invention in detail in conjunction with the embodiments, but the present invention is not limited to the above implementation methods. For ordinary technicians in this technical field, after knowing the contents recorded in the present invention, they can make several equivalent changes and substitutions without departing from the principles of the present invention. These equivalent changes and substitutions should also be regarded as belonging to the scope of protection of the present invention.

Claims

1. An adjustable turning tool for a CNC machine tool, comprising a tool handle, a tool holder and a tool head, characterized in that: An installation station is provided on the knife seat, and the knife head can be detachably installed on the installation station; the knife seat is rotatably installed on one end of the knife handle, and an adjustment component is installed between the knife handle and the knife seat, and the knife handle can adjust the rotation angle of the knife seat relative to the knife handle through the adjustment component.

2. The adjustable turning tool for a CNC machine tool according to claim 1, characterized in that: The cutter seat is provided with a mounting hole to form an installation station; the cutter head is detachably mounted on the mounting hole by means of mounting bolts.

3. The adjustable turning tool for a CNC machine tool according to claim 2, characterized in that: The cutter head comprises a cutter head body and a plurality of cutting blades; the cutting blades are spaced apart from the cutter head body, and the cutter head body and the cutting blades are integrally formed.

4. The adjustable turning tool for a CNC machine tool according to claim 1, characterized in that: The tool holder is rotatably mounted on the end of the tool handle with the tool handle axis as the axis.

5. The adjustable turning tool for a CNC machine tool according to claim 1, characterized in that: The adjustment assembly includes a plug and a locking piece; the plug is fixedly installed on the knife seat, and the end of the knife handle is recessed inward to form a mounting groove. The knife seat is rotatably installed in the mounting groove through the plug and is rotatably connected to the knife handle; the locking piece is installed on the knife handle to limit the rotational movement of the knife seat in the mounting groove.

6. The adjustable turning tool for a CNC machine tool according to claim 5, characterized in that: The groove wall of the mounting groove of the tool handle is concave inwardly toward the direction away from the axis of the tool handle near the groove top, forming an annular guide groove with a groove depth larger than the groove depth of the mounting groove; a plurality of strip guide blocks are provided at intervals along the circumference at positions corresponding to the annular guide groove on the plug column; the strip guide blocks are rotatably mounted in the annular guide groove.

7. The adjustable turning tool for a CNC machine tool according to claim 5, characterized in that: A rotating frame is rotatably mounted on the bottom of the mounting groove of the tool handle; a compression spring is fixedly mounted on the rotating frame, and one end of the compression spring away from the rotating frame is fixedly connected to the plug post.

8. The adjustable turning tool for a CNC machine tool according to claim 6, characterized in that: The width of the annular guide groove is greater than the width of the strip guide block; the strip guide block is slidably installed in the annular guide groove along a direction parallel to the axis of the tool handle, and is rotatably installed in the annular guide groove with the axis of the tool handle as the axis.

9. The adjustable turning tool for a CNC machine tool according to claim 5, characterized in that: The locking part includes a locking screw; a screw hole is provided on the tool handle at a position corresponding to the tool holder plug column, the screw hole is connected to the mounting groove, and an internal thread is provided in the hole, an external thread is provided on the outer side of the locking screw, and the locking screw is threadedly connected with the internal thread through the external thread and is rotatably installed in the screw hole, and its end portion facing the plug column forms a locking portion, and the locking screw is stopped at the plug column through the locking portion to limit the rotational movement of the tool holder in the mounting groove.

10. The adjustable turning tool for a CNC machine tool according to claim 9, characterized in that: The locking member also includes two fixing rings and latch teeth; the two fixing rings are fixedly installed on the knife handle and the knife seat respectively; the two fixing rings are arranged opposite to each other, and a number of latch teeth are evenly spaced on the ring surfaces on the opposite sides of the fixing rings; the knife seat and the knife handle are fitted together through the two fixing rings, and the latch teeth on the opposite ring surfaces engage with each other and stop, thereby locking each other.

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