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CN-122007932-A - Numerical control machine tool for machining long shaft parts

CN122007932ACN 122007932 ACN122007932 ACN 122007932ACN-122007932-A

Abstract

The invention relates to the technical field of machining tools, in particular to a numerical control machining tool for machining long-axis parts, which comprises a machine tool main body, two groups of clamping assemblies, two groups of connecting assemblies, a driving assembly and two groups of pushing assemblies. Wherein at least one set of connection assemblies is arranged in an axially sliding manner. An elastic piece I is arranged between the connecting component and the clamping component, and the connecting component is moved to stretch the elastic piece I so as to apply axial tension to the part. The pushing component is arranged in the clamping component and comprises a pushing component and a first driving component which are used for abutting against the end face of the part. The invention is also provided with an auxiliary component and a limiting component, when the clamping component is released to avoid the end processing cutter, the limiting component locks the position of the pushing component and is matched with the auxiliary component to carry out radial and axial auxiliary fixing on the part. The axial stretching mechanism effectively compensates the thermal deformation of the long shaft part and suppresses the machining vibration.

Inventors

  • Hou Yunguo
  • HOU YUNKUAN

Assignees

  • 大连市锦泽制造有限公司

Dates

Publication Date
20260512
Application Date
20260415

Claims (9)

  1. 1. The utility model provides a digit control machine tool that major axis class part processing was used, includes the lathe main part, its characterized in that is equipped with in the lathe main part: The two groups of clamping assemblies are used for clamping the two ends of the long shaft part; The two groups of connecting components respectively correspond to the two groups of clamping components, wherein at least one group of connecting components is arranged in a sliding way along the axial direction of the long shaft part; the driving assembly is used for driving the connecting assembly to drive the clamping assembly and the long shaft part to rotate; An elastic piece I is arranged between the corresponding connecting component and the clamping component, and the connecting component is far away from the clamping component relative to the elastic piece I so as to stretch the elastic piece I, so that axial tension is applied to the long shaft part; The two groups of pushing components are respectively and correspondingly arranged in the two groups of clamping components and comprise a pushing component and a first driving component for driving the pushing component to axially move, wherein the pushing component is used for abutting against the end face of the long shaft part.
  2. 2. The numerical control machine tool for machining long-axis parts according to claim 1, wherein a slide rail is provided on the machine tool body, a slide assembly is provided on the slide rail, and a slide connection assembly is provided on the slide assembly.
  3. 3. The numerical control machine tool for machining long-axis parts according to claim 1, wherein the pushing assembly further comprises a second elastic member, the second elastic member is disposed between the first driving member and the pushing member, and the second elastic member is configured to drive the pushing member to move in a direction away from the first driving member.
  4. 4. The numerical control machine tool for machining long-axis parts according to claim 1, wherein the connecting assembly comprises a first connecting plate and a connecting pipe, the connecting pipe is coaxially arranged with the connecting plate, the clamping assembly is slidably arranged on the first connecting plate along the axial direction of the first connecting plate, and the first elastic member is arranged between the first connecting plate and the clamping assembly.
  5. 5. The numerical control machine tool for machining long shaft parts according to claim 4, wherein the pushing member comprises a pushing rod and a second connecting plate, the second connecting plate is coaxially and slidably arranged in the connecting pipe, the pushing rod is coaxially arranged on the second connecting plate, and the second elastic member is arranged between the second connecting plate and the first driving member.
  6. 6. The numerical control machine tool for machining long shaft parts according to claim 5, wherein the limiting assembly is arranged on the connecting assembly, and the limiting assembly limits the second connecting plate when the clamping assembly does not clamp the long shaft parts any more.
  7. 7. The numerical control machine tool for machining long-axis parts according to claim 6, wherein the limiting assembly comprises a limiting plate sliding along the radial direction of the connecting pipe and a second driving part driving the limiting plate to slide, and the limiting plate is abutted against the second connecting plate to limit the position of the second connecting plate.
  8. 8. The numerical control machine tool for machining long-axis parts according to claim 2, wherein the sliding rail is provided with two sets of auxiliary components, the auxiliary components are respectively arranged near the two sets of clamping components, and the auxiliary components are configured to radially clamp the long-axis parts when the clamping components are released.
  9. 9. The numerical control machine tool for machining long shaft parts according to claim 8, wherein the auxiliary assembly is slidably provided on the slide rail to adjust the position of the auxiliary assembly according to the length of the long shaft parts.

Description

Numerical control machine tool for machining long shaft parts Technical Field The invention relates to the technical field of machining tools, in particular to a numerical control machining tool for machining long-axis parts. Background The long shaft parts are key basic parts in the machine manufacturing industry, and the processing quality of the long shaft parts directly affects the performance and the service life of the whole machine equipment. Because the long-axis parts have the characteristics of large length-diameter ratio and poor rigidity. In the numerical control machining process of long-axis parts, the workpiece is extremely easy to be influenced by cutting force, dead weight, centrifugal force and other factors to generate bending deformation and vibration. Such deformations and vibrations can seriously affect the geometric accuracy and surface quality of the long-axis parts and affect the quality of the long-axis parts. In the prior art, clamping is generally performed by adopting a mode that a tailstock center is matched with a chuck. I.e. the long shaft part is subjected to the pushing force of the tailstock center. The long shaft parts are easier to bend in the processing process, and particularly, the long shaft parts are easier to deform when being stressed and heated in the processing process. The processing quality of the long-axis parts is affected. Disclosure of Invention The invention mainly aims to provide a numerical control machine tool for machining long-axis parts, and aims to solve the problem that in the related art, a tailstock center is matched with a pushing fixing mode of a chuck, and the long-axis parts are easy to bend and deform when subjected to the acting force of a cutter and heated elongation in the machining process. In order to achieve the above purpose, the technical scheme provided by the invention is as follows: the numerical control machine tool for machining the long shaft parts comprises a machine tool main body, wherein the machine tool main body is internally provided with: The two groups of clamping assemblies are used for clamping the two ends of the long shaft part; The two groups of connecting components respectively correspond to the two groups of clamping components, wherein at least one group of connecting components is arranged in a sliding way along the axial direction of the long shaft part; the driving assembly is used for driving the connecting assembly to drive the clamping assembly and the long shaft part to rotate; An elastic piece I is arranged between the corresponding connecting component and the clamping component, and the connecting component moves relative to the clamping component to stretch the elastic piece I so as to apply axial tension to the long shaft part; The two groups of pushing components are respectively and correspondingly arranged in the two groups of clamping components and comprise a pushing component and a first driving component for driving the pushing component to axially separate, wherein the pushing component is used for abutting against the end face of the long shaft part. Specifically, be provided with the slip track on the lathe main part, be equipped with the slip subassembly on the slip track, the slip coupling assembling is located on the slip subassembly. Specifically, the pushing assembly further comprises an elastic piece II, the elastic piece II is arranged between the driving piece I and the pushing piece, and the elastic piece II is configured to drive the pushing piece to move towards a direction away from the driving piece I. Specifically, the connecting assembly comprises a connecting plate I and a connecting pipe, the connecting pipe and the connecting plate are coaxially arranged, the clamping assembly is arranged on the connecting plate I in a sliding mode along the axial direction of the connecting plate I, and the elastic piece I is arranged between the connecting plate I and the clamping assembly. Specifically, the pushing piece comprises a pushing rod and a connecting plate II, the connecting plate II is coaxially arranged in the connecting pipe in a sliding manner, the pushing rod is coaxially arranged on the connecting plate II, and the elastic piece II is arranged between the connecting plate II and the driving piece I. Specifically, be provided with spacing subassembly on coupling assembling, when clamping assembly no longer centre gripping major axis part, spacing subassembly carries out spacingly to the coupling plate two. Specifically, the limiting assembly comprises a limiting plate sliding along the radial direction of the connecting pipe and a driving piece II driving the limiting plate to slide, and the limiting plate is abutted with the connecting plate II to limit the position of the connecting plate II. Specifically, be equipped with two sets of auxiliary assembly on the slip track, auxiliary assembly is close to two sets of clamping assembly setting respectively, and when cla