WO2022016883A1

WO2022016883A1 - High-precision center frame

Info

Publication number: WO2022016883A1
Application number: PCT/CN2021/079876
Authority: WO
Inventors: 诸葛俊强; 章敏辉; 单文俊
Original assignee: 浙江佛尔泰智能设备有限公司
Priority date: 2020-07-24
Filing date: 2021-03-10
Publication date: 2022-01-27
Also published as: CN111716117A

Abstract

Disclosed is a high-precision center frame, comprising a bottom base (7), wherein an adjusting jig (5) is mounted on the bottom base (7); a mounting plate (6) is mounted on the adjusting jig (5); an up-down adjustment base (8) is mounted on the mounting plate (6); a pneumatic gripper (9) is mounted on the up-down adjustment base (8); a pressing claw (3) for clamping a workpiece is mounted at an output end of the pneumatic gripper (9), and a workpiece (1) is clamped in the middle of the pressing claw (3); and a front-back limiting device is arranged on one side of the adjusting jig (5), and the adjusting jig (5) is limited by means of the front-back limiting device so as to adjust the center position of a spindle. The high-precision center frame only uses two pneumatic cylinders, the pressing claw and other parts to achieve the functions of center positioning and clamping of the workpiece, same has a simple structure and reliable functions, and can eliminate a product error to improve the machining precision of products.

Description

A high-precision center rest

technical field

The invention relates to the field of workpiece processing, in particular to a high-precision steady rest.

Background technique

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. In other words, 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.

SUMMARY OF THE INVENTION

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. .

The present invention is realized by the following technical solutions: 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.

As a preferred technical solution, 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.

As a preferred technical solution, 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. When the workpiece is loaded into the clamping opening , and press the workpiece through the contact of the four bearings.

As a preferred technical solution, 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. Between the 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.

As a preferred technical solution, the first and second adjustment seats are fixedly mounted on the sliding mounting plate by screws.

As a preferred technical solution, 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.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

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.

detailed description

All features disclosed in this specification, or all disclosed steps in a method or process, may be combined in any way except mutually exclusive features and/or steps.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), unless expressly stated otherwise, may be replaced by other equivalent or alternative features serving a similar purpose. That is, unless expressly stated otherwise, each feature is but one example of a series of equivalent or similar features.

In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end" ”, “length”, “outer end”, etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated device or Elements must have a particular orientation, be constructed, and operate in a particular orientation and are therefore not to be construed as limitations of the invention.

In addition, in the description of the present invention, "plurality" means at least two, such as two, three, etc., unless expressly and specifically defined otherwise.

Terms such as "upper," "upper," "lower," "lower," and the like used herein to indicate relative spatial positions are for ease of illustration to describe one element or feature as shown in the drawings relative to another A unit or feature relationship. The terms relative position in space may be intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or otherwise) and the spatially relative descriptors used herein interpreted accordingly

In the present invention, unless otherwise expressly specified and limited, 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. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

As shown in FIG. 1 and FIG. 2 , 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 There is a front and rear limit device, and the adjustment jig 5 is restricted by the front and rear limit device to adjust to the center position of the main shaft.

Among them, 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.

In this embodiment, 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. When the workpiece 1 is loaded into the clamping opening When , the workpiece 1 is contacted and pressed by the four bearings 2 .

In this embodiment, 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 .

If the long shaft needs to be machined, 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.

Working principle description:

When working, adjust the air intake of the jig, 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. When pressing, the bearing contacts and presses the workpiece to complete the fast positioning and clamping.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this, and any changes or substitutions that are not conceived of without creative work should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope defined by the claims.

Claims

A high-precision center frame is characterized in that it comprises a base (7), an adjusting fixture (5) is mounted on the base (7), a mounting plate (6) is mounted on the adjusting fixture (5), and the mounting plate (6) ) is installed with an upper and lower adjusting seat (8), a workpiece clamping assembly is installed on the upper and lower adjusting seat (8), and one side of the adjusting jig (5) is provided with a front and rear limit device, which limits the adjustment jig ( 5) to adjust to the center of the spindle.
The high-precision steady rest according to claim 1, characterized in that: the workpiece clamping assembly adopts a pneumatic gripper (9), and the output end of the pneumatic gripper (9) is provided with a gripper (3) for clamping the workpiece. ), clamp the workpiece (1) in the middle of the clamping jaw (3).
The high-precision center frame according to claim 1, wherein the front and rear limit devices comprise a fixed baffle (10), the fixed baffle (10) is fixedly installed on the base (7), and the fixed baffle ( 10) More than one limit stop rod (4) is arranged through the upper part, and the limit stop rod (4) extends toward one end of the adjustment jig (5).
The high-precision center frame according to claim 2, characterized in that: the clamping jaw (3) is provided with a clamping opening for clamping workpieces, and a rolling pressing member ( 2), the rolling pressing piece (2) is partially located in the clamping opening. When the workpiece (1) is loaded into the clamping opening, the four rolling pressing pieces (2) contact and press the workpiece (1).
The high-precision steady rest according to claim 4, wherein the rolling pressing member is a bearing or a rolling shaft, and when the workpiece is loaded into the clamping opening, it is pressed and positioned by the rolling pressing member.
The high-precision steady rest according to claim 1, characterized in that: the upper and lower adjustment seats (8) are composed of a first adjustment seat and a second adjustment seat, and a mounting bracket is formed between the first adjustment seat and the second adjustment seat. In the clamping cavity, the pneumatic gripper (9) is installed between the first and second adjustment seats, the first and second adjustment seats are provided with locking screws, and the pneumatic gripper (9) is installed on the first and second adjustment seats Lock the position with the locking screw.
The high-precision center frame according to claim 6, wherein the first and second adjustment seats are fixedly mounted on the sliding mounting plate (6) by screws.
The high-precision center frame according to claim 1, wherein the adjusting fixture adopts a cylinder sliding table, and the mounting plate is a sliding table mounting plate.