WO2022016883A1 - 一种高精度中心架 - Google Patents

一种高精度中心架 Download PDF

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Publication number
WO2022016883A1
WO2022016883A1 PCT/CN2021/079876 CN2021079876W WO2022016883A1 WO 2022016883 A1 WO2022016883 A1 WO 2022016883A1 CN 2021079876 W CN2021079876 W CN 2021079876W WO 2022016883 A1 WO2022016883 A1 WO 2022016883A1
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Prior art keywords
workpiece
clamping
adjustment
precision
center frame
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PCT/CN2021/079876
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English (en)
French (fr)
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诸葛俊强
章敏辉
单文俊
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浙江佛尔泰智能设备有限公司
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Publication of WO2022016883A1 publication Critical patent/WO2022016883A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/72—Auxiliary arrangements; Interconnections between auxiliary tables and movable machine elements
    • B23Q1/76—Steadies; Rests
    • B23Q1/766—Steadies or rests moving together with the tool support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2703/00—Work clamping
    • B23Q2703/02—Work clamping means
    • B23Q2703/04—Work clamping means using fluid means or a vacuum

Definitions

  • the invention relates to the field of workpiece processing, in particular to a high-precision steady rest.
  • the workpiece When a lathe turns a workpiece, the workpiece is usually installed on the center frame, but when the traditional center frame clamps the workpiece, it is more inconvenient to adjust the center position of the spindle, and the clamping jaws for clamping the workpiece are also difficult to adjust to the center position of the spindle.
  • the mechanism structure of the entire clamping workpiece is very complex. To achieve fast centering and fast clamping, a very complex structure needs to be used.
  • the technical problem to be solved by the present invention is a high-precision center frame, which can realize the center positioning and clamping function only by using two cylinders, pressing claws, etc., with simple structure and reliable function, and can effectively solve the deficiencies in the prior art. .
  • a high-precision center frame comprising a base, an adjustment jig is installed on the base, an installation plate is installed on the adjustment jig, an upper and lower adjustment seat is installed on the installation plate, and the upper and lower adjustment seat is installed.
  • a workpiece clamping component is installed on the upper part, and one side of the adjusting jig is provided with a front and rear limit device.
  • the front and rear limit devices include a fixed baffle plate, the fixed baffle plate is fixedly installed on the base, and there are more than one limit stop rods passing through the fixed baffle plate, and the limit stop rods are directed toward the adjustment control. One end extends.
  • the clamping jaw is provided with a clamping opening for clamping the workpiece, a bearing is installed on both sides of the clamping opening, and the bearing part is located in the clamping opening.
  • the upper and lower adjustment seats are composed of a first adjustment seat and a second adjustment seat, a clamping cavity is formed between the first adjustment seat and the second adjustment seat, and the pneumatic gripper is installed on the first and second adjustment seats.
  • the first and second adjustment seats are provided with locking screws, and the pneumatic gripper is installed in the first and second adjustment seats and then locked and positioned by the locking screws.
  • the first and second adjustment seats are fixedly mounted on the sliding mounting plate by screws.
  • the adjusting fixture adopts a cylinder sliding table, and the mounting plate is a sliding table mounting plate.
  • the beneficial effects of the invention are as follows: 1.
  • the mechanism only uses two cylinders, pressing claws, etc., which can realize the function of central positioning and clamping, with simple structure and reliable function; 2.
  • the mechanism has strong manufacturing process; 3. Eliminates product Errors, improve the processing accuracy of products; 4. Save costs.
  • Fig. 1 is the three-dimensional structure schematic diagram of the present invention
  • FIG. 2 is a schematic view of the front structure of the present invention.
  • plural means at least two, such as two, three, etc., unless expressly and specifically defined otherwise.
  • the terms “arrangement”, “socket connection”, “connection”, “penetration”, “plug connection” and other terms should be understood in a broad sense, for example, it may be a fixed connection, It can also be detachable connection or integrated; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relationship, unless otherwise expressly qualified.
  • the specific meanings of the above terms in the present invention can be understood according to specific situations.
  • a high-precision center frame in this embodiment includes a base 7 on which an adjusting jig 5 is installed, and a mounting plate 6 is installed on the adjusting jig 5 .
  • An upper and lower adjustment seat 8, a pneumatic gripper 9 is installed on the upper and lower adjustment seat 8, the output end of the pneumatic gripper 9 is installed with a clamping jaw 3 for clamping the workpiece, the clamping jaw 3 clamps the workpiece 1 in the middle, and adjusts the side of the jig 5
  • the front and rear limit devices include a fixed baffle 10, the fixed baffle 10 is fixedly installed on the base 7, and more than one limit stop rod 4 is arranged on the fixed baffle plate 10, and the limit stop rod 4 is directed toward the adjustment control With 5 one end extends.
  • the clamping jaw 3 is provided with a clamping opening for clamping the workpiece, and a bearing 2 is installed on both sides of the clamping opening.
  • the bearing 2 is partially located in the clamping opening.
  • the upper and lower adjusting seat 8 is composed of a first adjusting seat and a second adjusting seat, a clamping cavity is formed between the first adjusting seat and the second adjusting seat, and the pneumatic gripper 9 is installed on the first and second adjusting seat Between the seats, the first and second adjustment seats are provided with locking screws, and the pneumatic gripper 9 is installed in the first and second adjustment seats and is locked and positioned by the locking screws; the first and second adjustment seats are fixed by screws It is fixedly mounted on the sliding mounting plate 6 .
  • the outer circle can be turned by the thimble first, and then the hydraulic steady rest cylinder of the present invention is used to press down the workpiece, loosen the center, and carry out the inner hole of the car to realize the machining of the outer circle and inner hole at one time.
  • the center frame does not meet this requirement.
  • the sliding table moves forward, and is limited by the front and rear rods to adjust to the center of the spindle;
  • the pneumatic gripper is installed on the upper and lower adjustment seats, and the adjustment seat is adjusted to the center of the spindle;
  • the pneumatic gripper is intake air , Press the workpiece.
  • the bearing contacts and presses the workpiece to complete the fast positioning and clamping.
  • the beneficial effects of the invention are as follows: 1.
  • the mechanism only uses two cylinders, pressing claws, etc., which can realize the function of central positioning and clamping, with simple structure and reliable function; 2.
  • the mechanism has strong manufacturing process; 3. Eliminates product Errors, improve the processing accuracy of products; 4. Save costs.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

一种高精度中心架，包括一底座(7)，底座(7)安装调节治具(5)，调节治具(5)上安装一安装板(6)，安装板(6)上安装一上下调整座(8)，上下调整座(8)上安装气动手爪(9)，气动手爪(9)的输出端安装有装夹工件用的压爪(3)，压爪(3)中间装夹工件(1)，调节治具(5)一侧设有前后限位装置，通过前后限位装置限制调节治具(5)以调整主轴的中心位置。高精度中心架只使用二个气缸、压爪等零件，便能实现工件的中心定位夹紧功能，结构简单，功能可靠，可以消除产品的误差，提高产品的加工精度。

Description

一种高精度中心架 技术领域
本发明涉及工件加工领域，具体涉及一种高精度中心架。
背景技术
车床车削工件时，通常将工件安装于中心架上，但是传统的中心架在装夹工件时，与主轴中心位置的调节比较不便，装夹工件的夹爪也很难调整到主轴中心位置，总体来说，整个装夹工件的机构结构上非常的复杂，要想实现快速对中以及快速装夹，需要使用到非常复杂的结构。
发明内容
本发明所要解决的技术问题是一种高精度中心架，只是运用二个气缸、压爪等，就能实现中心定位夹紧功能，结构简单，功能可靠，能够有效的解决现有技术中的不足。
本发明是通过以下技术方案来实现的：一种高精度中心架，包括一底座，底座上安装调节治具，调节治具上安装一安装板，安装板上安装一上下调整座，上下调整座上安装一工件夹紧组件，调节治具一侧具有一前后限位装置，通过前后限位装置限制调节治具来调整到主轴的中心位置。
作为优选的技术方案，所述前后限位装置包括一固定挡板，固定挡板固定安装于底座上，固定挡板上穿过设置有一根以上的限位挡杆，限位挡杆向着调节治具一端延伸。
作为优选的技术方案，所述压爪上设置有装夹工件用的装夹口，位于装夹口的两侧分别安装一轴承，轴承部分位于装夹口内，当工件装入于装夹口内时， 通过四个轴承接触压紧工件。
作为优选的技术方案，所述上下调整座由第一调整座以及第二调整座组成，第一调整座与第二调整座之间形成一个装夹腔，气动手爪安装于第一、第二调整座之间，第一、第二调整座上设置有锁紧螺丝，气动手爪安装于第一、第二调整座内后通过锁紧螺丝锁紧定位。
作为优选的技术方案，所述第一、第二调整座通过螺丝固定安装于滑动安装板上。
作为优选的技术方案，所述调节治具采用一气缸滑台，所述安装板为滑台安装板。
本发明的有益效果是：1.本机构只是运用二个气缸、压爪等，即能实现中心定位夹紧功能，结构简单，功能可靠；2.本机构制造工艺性强；3.消除产品的误差，提高产品的加工精度；4.节约成本。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明的立体结构示意图；
图2为本发明的正面结构示意图。
具体实施方式
本说明书中公开的所有特征，或公开的所有方法或过程中的步骤，除了互 相排斥的特征和/或步骤以外，均可以以任何方式组合。
本说明书(包括任何附加权利要求、摘要和附图)中公开的任一特征，除非特别叙述，均可被其他等效或具有类似目的的替代特征加以替换。即，除非特别叙述，每个特征只是一系列等效或类似特征中的一个例子而已。
在本发明的描述中，需要理解的是，术语“一端”、“另一端”、“外侧”、“上”、“内侧”、“水平”、“同轴”、“中央”、“端部”、“长度”、“外端”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
本发明使用的例如“上”、“上方”、“下”、“下方”等表示空间相对位置的术语是出于便于说明的目的来描述如附图中所示的一个单元或特征相对于另一个单元或特征的关系。空间相对位置的术语可以旨在包括设备在使用或工作中除了图中所示方位以外的不同方位。例如，如果将图中的设备翻转，则被描述为位于其他单元或特征“下方”或“之下”的单元将位于其他单元或特征“上方”。因此，示例性术语“下方”可以囊括上方和下方这两种方位。设备可以以其他方式被定向(旋转90度或其他朝向)，并相应地解释本文使用的与空间相关的描述语
在本发明中，除非另有明确的规定和限定，术语“设置”、“套接”、“连接”、“贯穿”、“插接”等术语应做广义理解，例如，可以是固定连接，也可以是可 拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
如图1和图2所示，本实施例中的一种高精度中心架，包括一底座7，底座7安装调节治具5，调节治具5上安装一安装板6，安装板6上安装一上下调整座8，上下调整座8上安装气动手爪9，气动手爪9的输出端安装有装夹工件用的压爪3，压爪3中间装夹工件1，调节治具5一侧具有一前后限位装置，通过前后限位装置限制调节治具5来调整到主轴的中心位置。
其中，前后限位装置包括一固定挡板10，固定挡板10固定安装于底座7上，固定挡板10上穿过设置有一根以上的限位挡杆4，限位挡杆4向着调节治具5一端延伸。
本实施例中，压爪3上设置有装夹工件用的装夹口，位于装夹口的两侧分别安装一轴承2，轴承2部分位于装夹口内，当工件1装入于装夹口内时，通过四个轴承2接触压紧工件1。
本实施例中，上下调整座8由第一调整座以及第二调整座组成，第一调整座与第二调整座之间形成一个装夹腔，气动手爪9安装于第一、第二调整座之间，第一、第二调整座上设置有锁紧螺丝，气动手爪9安装于第一、第二调整座内后通过锁紧螺丝锁紧定位；第一、第二调整座通过螺丝固定安装于滑动安装板6上。
如果需要加工长轴，可以先使用顶针把外圆车好，然后利用本发明的液压中心架气缸，下压紧工件，顶尖松开，进行车内孔，实现外圆内孔一次加工，而普通的中心架达不到这个要求。
工作原理说明：
工作时，调节治具进气，滑台往前走，由前后杆限位，调整到主轴中心位置；气动手爪装到上下调整座，由调整座调到主轴中心位置；气动手爪进气，压紧工件，压紧时，由轴承接触压紧工件，完成快速定位装夹。
本发明的有益效果是：1.本机构只是运用二个气缸、压爪等，即能实现中心定位夹紧功能，结构简单，功能可靠；2.本机构制造工艺性强；3.消除产品的误差，提高产品的加工精度；4.节约成本。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何不经过创造性劳动想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应该以权利要求书所限定的保护范围为准。

Claims (8)

  1. 一种高精度中心架，其特征在于：包括一底座(7)，底座(7)上安装调节治具(5)，调节治具(5)上安装一安装板(6)，安装板(6)上安装一上下调整座(8)，上下调整座(8)上安装一工件夹紧组件，调节治具(5)一侧具有一前后限位装置，通过前后限位装置限制调节治具(5)来调整到主轴的中心位置。
  2. 根据权利要求1所述的高精度中心架，其特征在于：所述工件夹紧组件采用一气动手爪(9)，气动手爪(9)的输出端安装有装夹工件用的压爪(3)，压爪(3)中间装夹工件(1)。
  3. 根据权利要求1所述的高精度中心架，其特征在于：所述前后限位装置包括一固定挡板(10)，固定挡板(10)固定安装于底座(7)上，固定挡板(10)上穿过设置有一根以上的限位挡杆(4)，限位挡杆(4)向着调节治具(5)一端延伸。
  4. 根据权利要求2所述的高精度中心架，其特征在于：所述压爪(3)上设置有装夹工件用的装夹口，位于装夹口的两侧分别安装一滚动压紧件(2)，滚动压紧件(2)部分位于装夹口内，当工件(1)装入于装夹口内时，通过四个滚动压紧件(2)接触压紧工件(1)。
  5. 根据权利要求4所述的高精度中心架，其特征在于：所述滚动压紧件为轴承或者滚动轴，工件装入于装夹口内时，由滚动的压紧件压紧定位。
  6. 根据权利要求1所述的高精度中心架，其特征在于：所述上下调整座(8)由第一调整座以及第二调整座组成，第一调整座与第二调整座之间形成一个装 夹腔，气动手爪(9)安装于第一、第二调整座之间，第一、第二调整座上设置有锁紧螺丝，气动手爪(9)安装于第一、第二调整座内后通过锁紧螺丝锁紧定位。
  7. 根据权利要求6所述的高精度中心架，其特征在于：所述第一、第二调整座通过螺丝固定安装于滑动安装板(6)上。
  8. 根据权利要求1所述的高精度中心架，其特征在于：所述调节治具采用一气缸滑台，所述安装板为滑台安装板。
PCT/CN2021/079876 2020-07-24 2021-03-10 一种高精度中心架 WO2022016883A1 (zh)

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CN114670034A (zh) * 2022-05-09 2022-06-28 邵东智能制造技术研究院有限公司 长距孔高精度多功能机床
CN114918701A (zh) * 2022-04-29 2022-08-19 广州明珞装备股份有限公司 一种上下料配气装置、抓手配气结构及方法、机床配气结构及方法

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CN111716117A (zh) * 2020-07-24 2020-09-29 浙江佛尔泰智能设备有限公司 一种高精度中心架
CN114102489A (zh) * 2021-11-15 2022-03-01 中铁电气化局集团有限公司 一种腕臂装配用固定装置

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