WO2020082355A1 - 一种数控机床的顶尖装置 - Google Patents

一种数控机床的顶尖装置 Download PDF

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Publication number
WO2020082355A1
WO2020082355A1 PCT/CN2018/112172 CN2018112172W WO2020082355A1 WO 2020082355 A1 WO2020082355 A1 WO 2020082355A1 CN 2018112172 W CN2018112172 W CN 2018112172W WO 2020082355 A1 WO2020082355 A1 WO 2020082355A1
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WIPO (PCT)
Prior art keywords
support table
machine tool
support
tip
center
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PCT/CN2018/112172
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English (en)
French (fr)
Inventor
耿祖兰
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耿祖兰
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Publication date
Application filed by 耿祖兰 filed Critical 耿祖兰
Priority to PCT/CN2018/112172 priority Critical patent/WO2020082355A1/zh
Publication of WO2020082355A1 publication Critical patent/WO2020082355A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B23/00—Tailstocks; Centres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B23/00—Tailstocks; Centres
    • B23B23/04—Live centres

Definitions

  • a CNC machine tool structure belongs to the technical field of CNC machine tools, and mainly relates to a top device of a CNC machine tool.
  • the top device is one of the important parts of the lathe. It is the main lathe accessory used to support the turning and drilling of shaft parts on the lathe.
  • the tailstock of the CNC lathe is used to press the top to tighten the workpiece when processing shaft parts to ensure the stability of processing.
  • the center of the lathe can move longitudinally along the guide rail to adjust its position.
  • There is a mandrel driven by the handle to move in the direction of the spindle axis.
  • a tip is inserted into the tapered hole of the sleeve to support one end of the longer workpiece. It can also be replaced with a drill, reamer and other tools to achieve hole drilling and reaming.
  • the top device in the prior art has a complicated and unreasonable structure.
  • the support column has poor stability due to mechanical vibration during processing, which affects processing Or milling accuracy.
  • the present invention discloses a top device of a numerical control machine tool, which has a simple structure and good stability.
  • a top device of a numerical control machine tool includes a support structure and a butt disk, a clamping body and an end top plate installed in sequence.
  • the center of the clamp body is provided with a center and a plurality of claws.
  • the support structure includes a hollow pillar, a guide column, and a first support
  • one end of the guide column is inserted into the hollow pillar, the other end of the guide column is connected to one end of the first support table, the other end of the first support table has a spherical groove, and the end of the second support table is a spherical concave
  • the groove matches the corresponding spherical body, the other end of the second support platform is connected to one end of the center, and the first support platform and the second support platform are fixedly connected by long screws.
  • One end of the claw is inserted into the fixture body through the end face top plate to be in abutment connection with the second support table, a circular groove is provided at the contact point between the second support table and the claw, and one end of the claw is inserted into the circular groove Inside.
  • the ratio of the outer diameter of the main body of the hollow pillar to the diameter of the docking disc is 2: 5.
  • the two ends of the apex are a cone tip and a cylindrical part.
  • the cylindrical part is inserted into the fixture body through the end face top plate to establish a connection with the second support table.
  • the cone tip is a cone.
  • the angle between the two generatrices of the cone is 60 °.
  • a connecting portion having an external frustum is provided between the cylindrical portion and the tapered tip portion, and the ratio of the length of the connecting portion to the length of the tapered tip portion is 9: 4.
  • the present invention has the following beneficial effects.
  • the structure of the present invention is simple and reasonable, and the stability is high.
  • the structure of the supporting column plays a good buffering role.
  • the specific structure of the clip has good stability, so that the device has Very good stability, little impact on the milling process of mechanical processing, improve production efficiency and processing efficiency
  • Figure 1 is a schematic diagram of the overall structure of the present invention.
  • the center device of a numerical control machine tool of this embodiment includes a support structure and a butt disk 1, a clamping body 2 and an end top plate 6 that are installed in sequence.
  • the center of the clamping body 2 is provided with a center and a plurality of grippers 4, and the support structure includes Hollow pillar 3-1, guide column 3-2, first support table 3-3 and second support table 3-4, one end of guide column 3-2 is inserted into hollow pillar 3-1, the other of guide column 3-2
  • One end is connected to one end of the first support table 3-3, the other end of the first support table 3-3 is spherical groove, and one end of the second support table is a spherical body matching the spherical groove.
  • the other end is connected to one end of the top, and the first support table 3-3 and the second support table 3-4 are fixedly connected by long screws.
  • One end of the claw 4 is inserted into the clip body 2 through the end face top plate 6 and is connected to the second support table 3-4, and the second support table 3-4 and the claw 4 are provided with a circular recess Groove, one end of the claw 4 is inserted into the circular groove.
  • the ratio of the outer diameter of the main body of the hollow pillar 3-1 to the diameter of the docking disc 1 is 2: 4.
  • the two ends of the apex are a tapered tip 5-3 and a cylindrical part 5-1, and the cylindrical part 5-1 is inserted into the clip body 2 through the end face top plate 6 to establish a connection with the second support platform 3-4, and the tapered tip Part 5-3 is a cone, and the angle between the two generatrices of the cone is 60 °.
  • connection portion 5-2 having an external truncated cone, and the ratio of the length of the connection portion to the length of the cone tip portion 5-3 is 9: 4 .

Abstract

一种数控机床的顶尖装置，导向柱（3-2）一端嵌插入空心支柱（3-1）内，导向柱（3-2）的另一端连接第一支撑台（3-3）的一端，第一支撑台（3-3）的另一端球形凹槽，第二支撑台（3-4）的一端为与球形凹槽匹配对应的球面体，第二支撑台（3-4）的另一端连接顶尖的一端，第一支撑台（3-3）和第二支撑台（3-4）通过长螺钉固定连接；该装置具有很好的稳定性，对于机械加工的铣削过程影响小，提高生产效率和加工效率。

Description

一种数控机床的顶尖装置 技术领域
一种数控机床结构属于数控机床技术领域，主要涉及一种数控机床的顶尖装置。
背景技术
顶尖装置是车床上的重要的部件之一，是车床上用以支撑轴类零件车削加工和实施钻孔的主要车床附件。数控车床的尾座是在加工轴类零件时，使用其顶尖顶紧工件，保证加工的稳定性。车床的顶尖可沿导轨纵向移动调整其位置。其内有一根由手柄带动沿主轴轴线方向移动的心轴，在套筒的锥孔里插上顶尖，可以支承较长工件的一端。还可以换上钻头、铰刀等刀具实现孔的钻削和铰削加工，现有技术中的顶尖装置结构复杂并且不合理，支撑柱由于加工过程中的机械震动造成抵靠稳定性差，影响加工或铣削精度。
发明内容
为了解决上述问题，本发明公开了一种数控机床的顶尖装置，结构简单，稳定性好。
本发明的目的是这样实现的：
一种数控机床的顶尖装置，包括支撑结构和依次安装的对接盘、夹具体与端面顶盘，夹具体内设有顶尖和若干克爪，所述支撑结构包括空心支柱、导向柱、第一支撑台和第二支撑台，导向柱一端嵌插入空心支柱内，导向柱的另一端连接第一支撑台的一端，第一支撑台的另一端球形凹槽，第二支撑台的一端为与球形凹槽匹配对应的球面体，所述第二支撑台的另一端连接顶尖的一端，所述第一支撑台和第二支撑台通过长螺钉固定连接。
所述克爪的一端穿过端面顶盘插入夹具体内与第二支撑台抵靠连接，所述第二支撑台与克爪接触处设有圆形凹槽，克爪的一端插入圆形凹槽内。
所述空心支柱的主体外部直径与对接盘的直径比为2:5。
所述顶尖两端为锥尖部和圆柱部，圆柱部穿过端面顶盘插入夹具体内与第二支撑台建立连接，所述锥尖部为圆锥体，圆锥体的两条母线的夹角为60°。
所述圆柱部与锥尖部之间设有外部呈锥台的连接部，所述连接部的长度与锥尖部的 长度之比为9:4。
本发明与现有技术相比具有如下有益效果，本发明结构简单合理，稳定性高，所述支撑柱的结构起到良好的缓冲作用，夹具体的结构具有良好的稳定性，使装置整体具有很好的稳定性，对于机械加工的铣削过程影响小，提高生产效率和加工效率
附图说明
图1是本发明整体结构示意图。
具体实施方式
下面结合附图对本发明具体实施方式作进一步详细描述。
本实施例的一种数控机床的顶尖装置，包括支撑结构和依次安装的对接盘1、夹具体2与端面顶盘6，夹具体2内设有顶尖和若干克爪4，所述支撑结构包括空心支柱3-1、导向柱3-2、第一支撑台3-3和第二支撑台3-4，导向柱3-2一端嵌插入空心支柱3-1内，导向柱3-2的另一端连接第一支撑台3-3的一端，第一支撑台3-3的另一端球形凹槽，第二支撑台的一端为与球形凹槽匹配对应的球面体，所述第二支撑台的另一端连接顶尖的一端，所述第一支撑台3-3和第二支撑台3-4通过长螺钉固定连接。
所述克爪4的一端穿过端面顶盘6插入夹具体2内与第二支撑台3-4抵靠连接，所述第二支撑台3-4与克爪4接触处设有圆形凹槽，克爪4的一端插入圆形凹槽内。
所述空心支柱3-1的主体外部直径与对接盘1的直径比为2:4。
所述顶尖两端为锥尖部5-3和圆柱部5-1，圆柱部5-1穿过端面顶盘6插入夹具体2内与第二支撑台3-4建立连接，所述锥尖部5-3为圆锥体，圆锥体的两条母线的夹角为60°。
所述圆柱部5-1与锥尖部5-3之间设有外部呈锥台的连接部5-2，所述连接部的长度与锥尖部5-3的长度之比为9:4。

Claims (5)

  1. 一种数控机床的顶尖装置，其特征在于：包括支撑结构和依次安装的对接盘、夹具体与端面顶盘，夹具体内设有顶尖和若干克爪，所述支撑结构包括空心支柱、导向柱、第一支撑台和第二支撑台，导向柱一端嵌插入空心支柱内，导向柱的另一端连接第一支撑台的一端，第一支撑台的另一端球形凹槽，第二支撑台的一端为与球形凹槽匹配对应的球面体，所述第二支撑台的另一端连接顶尖的一端，所述第一支撑台和第二支撑台通过长螺钉固定连接。
  2. 根据权利要求1所述一种数控机床的顶尖装置，其特征在于：所述克爪的一端穿过端面顶盘插入夹具体内与第二支撑台抵靠连接，所述第二支撑台与克爪接触处设有圆形凹槽，克爪的一端插入圆形凹槽内。
  3. 根据权利要求1所述一种数控机床的顶尖装置，其特征在于：所述空心支柱的主体外部直径与对接盘的直径比为2:5。
  4. 根据权利要求1所述一种数控机床的顶尖装置，其特征在于：所述顶尖两端为锥尖部和圆柱部，圆柱部穿过端面顶盘插入夹具体内与第二支撑台建立连接，所述锥尖部为圆锥体，圆锥体的两条母线的夹角为60°。
  5. 根据权利要求4所述一种数控机床的顶尖装置，其特征在于：所述圆柱部与锥尖部之间设有外部呈锥台的连接部，所述连接部的长度与锥尖部的长度之比为9:4。
PCT/CN2018/112172 2018-10-26 2018-10-26 一种数控机床的顶尖装置 WO2020082355A1 (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2840184A1 (de) * 1978-09-15 1980-03-27 Hans Neidlein Stirnmitnehmer zum zentrieren und mitnehmen von werkstuecken fuer die arbeitsspindel einer drehmaschine
CN2070213U (zh) * 1990-07-19 1991-01-30 烟台市芝罘新兴夹具厂 拨爪可调式机械浮动端面拨动顶尖
JP2000033504A (ja) * 1998-07-21 2000-02-02 Okuma Corp フエースドライブ装置及びこれを有する研削盤並びに研削加工方法
CN201150994Y (zh) * 2007-12-28 2008-11-19 陕西科技大学 一种车床浮动前顶尖
JP2014151386A (ja) * 2013-02-07 2014-08-25 Murata Mach Ltd 旋盤
CN107234474A (zh) * 2017-07-07 2017-10-10 桂林福达齿轮有限公司 一种用于锥齿轮主动轮端面驱动精车夹具

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2840184A1 (de) * 1978-09-15 1980-03-27 Hans Neidlein Stirnmitnehmer zum zentrieren und mitnehmen von werkstuecken fuer die arbeitsspindel einer drehmaschine
CN2070213U (zh) * 1990-07-19 1991-01-30 烟台市芝罘新兴夹具厂 拨爪可调式机械浮动端面拨动顶尖
JP2000033504A (ja) * 1998-07-21 2000-02-02 Okuma Corp フエースドライブ装置及びこれを有する研削盤並びに研削加工方法
CN201150994Y (zh) * 2007-12-28 2008-11-19 陕西科技大学 一种车床浮动前顶尖
JP2014151386A (ja) * 2013-02-07 2014-08-25 Murata Mach Ltd 旋盤
CN107234474A (zh) * 2017-07-07 2017-10-10 桂林福达齿轮有限公司 一种用于锥齿轮主动轮端面驱动精车夹具

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