CN212762031U - Intelligent miniature fluid dynamic pressure bearing forming device - Google Patents

Abstract

The utility model relates to a liquid dynamic pressure bearing shaping technical field specifically is a miniature liquid dynamic pressure bearing forming device of intelligence, including the base, the frame support column, servo motor, motor tensioning bolt, go up the frame, big band pulley, the hold-in range, little band pulley, the frame, the roll nut mount table, the pressure head, the location mandrel, protruding type fixed side lead screw supporting seat, ball, quiet guide rail, work slip table, location mandrel mount table, move the guide rail, protruding type supports side lead screw supporting seat, intelligent control box and pressure head linear transducer. The utility model has the advantages of simple structure and scientific and reasonable design, the manufacturing degree of difficulty is low, easy and simple to handle, intelligent degree is high, has improved the defect that production methods such as used electrochemistry or spark-erosion machining caused in traditional liquid dynamic pressure bearing production inefficiency, with high costs and be difficult for large-scale production, through intelligent control, changes servo motor's moment of torsion into motion and power on the straight line direction, carries out contour machining to the blank, realizes the shaping requirement of liquid dynamic pressure bearing.

Description

Intelligent miniature fluid dynamic pressure bearing forming device

Technical Field

The utility model relates to a liquid hydrodynamic bearing processing technology field specifically is a miniature liquid hydrodynamic bearing forming device of intelligence.

Background

The hydrodynamic bearing is a sliding bearing which makes liquid form an oil film through high-speed rotation, and reduces friction and bears load by replacing direct contact with the oil film. When the hydrodynamic bearing works, the lubricant is used as a friction medium, so that friction only occurs among molecules of the liquid lubricant, thereby reducing the running friction force, reducing the abrasion of a sliding surface and further reducing vibration. The hydrodynamic bearing has many advantages compared with the traditional bearing due to the inherent hardware foundation, and is widely applied to precise rotating machinery industries such as water turbines, steam turbines, gas compressors and the like at present.

The mature technology for the processing and manufacturing of the hydrodynamic bearing at home and abroad mainly utilizes the modes of electric spark processing, electric spark processing and the like for production. Taking electrochemical machining as an example, mainly by passing direct current with high density and low voltage between a workpiece (anode) and a preforming tool (cathode), metal is dissolved on the surface of the anode workpiece, so that the shape of a cutter is copied on the workpiece, but the current mature machining mode has slow machining speed and high machining cost, is not suitable for the production of bearings and is rapidly put on the market. Therefore, by researching and referring to related processing technologies at home and abroad, the intelligent miniature fluid dynamic bearing forming device is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a miniature hydrodynamic bearing forming device of intelligence to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an intelligent miniature fluid dynamic pressure bearing forming device comprises a base, frame supporting columns, an upper frame, a frame and an intelligent control box, wherein the frame and a group of frame supporting columns are respectively arranged on two sides of the base, the upper frame is arranged at the top ends of the frame and the frame supporting columns, and the intelligent control box is arranged on the base on the inner side of the frame close to the frame.

Preferably, frame U type groove outer end be equipped with two quiet guide rails respectively, frame U type inslot side upper and lower part install protruding type fixed side lead screw supporting seat and protruding type support side lead screw supporting seat respectively, protruding type support side lead screw supporting seat and protruding type fixed side lead screw supporting seat between be equipped with ball.

Preferably, holes are formed in two sides of the upper frame, and the ball screw shaft penetrates through the convex fixed side screw support seat and the outer side hole of the upper frame to be provided with a small belt wheel; a servo motor is arranged at the inner side hole of the upper frame, a servo motor shaft penetrates through the inner side hole of the upper frame to be provided with a large belt wheel, the large belt wheel is connected with a small belt wheel through a synchronous belt in a transmission mode, and a tensioning bolt is arranged between the servo motor and the upper frame.

Preferably, the outer end of the U-shaped groove of the rack is provided with a positioning mandrel mounting table which is abutted against the lower end of the static guide rail; and the positioning mandrel is arranged on the positioning mandrel mounting table.

Preferably, the static guide rail is provided with two movable guide rails, and the movable guide rails are matched and slidably connected with the static guide rail; the two groups of movable guide rails are provided with a working sliding table in a matched mode, the middle of the inner side of the working sliding table is provided with a rolling nut mounting table, rolling nuts are mounted on the rolling nut mounting table, and the rolling nuts and the ball screws move in a matched mode.

Preferably, the department installs the pressure head mount table in the middle of the work slip table outside, install the pressure head on the pressure head mount table, the pressure head is made through spark-erosion machining by the carbide that contains the cobalt volume lower, the inside pressure head linear transducer that is equipped with of pressure head.

Preferably, the intelligent control box is internally provided with an intelligent control system module such as a control switch, a singlechip and the like.

Compared with the prior art, the beneficial effects of the utility model are that:

1) the intelligent miniature fluid dynamic pressure bearing forming device is simple in structure and scientific and reasonable in design, overcomes the defects that production modes such as electrochemistry or electric spark machining used in the production of the traditional fluid dynamic pressure bearing are low in efficiency and high in cost and are not easy to produce on a large scale, and converts the torque of a stepping motor into motion and force in the linear direction through intelligent control, so that a blank is formed and processed, and the forming requirement of the fluid dynamic pressure bearing is met.

2) This miniature hydrodynamic bearing forming device of intelligence, its servo motor, quiet guide rail, move the guide rail, parts such as protruding type support side lead screw supporting seat, protruding type fixed side lead screw supporting seat, ball and roll nut are the standard component, can directly choose for use, and the manufacturing of being convenient for also can change the part of renewal when each part became invalid.

3) This miniature hydrodynamic bearing forming device of intelligence, intelligent control system modules such as control switch, singlechip have integrateed in its intelligent control box, easy and simple to handle, intelligent degree is high, through pressure head linear transducer's signal conduction, ensures that the device can normally work.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of an intelligent micro hydrodynamic bearing forming device;

FIG. 2 is a side view of an intelligent micro hydrodynamic bearing forming device;

FIG. 3 is a top view of an intelligent micro hydrodynamic bearing forming device;

FIG. 4 is a schematic diagram of a structure at a pressure head of an intelligent micro hydrodynamic bearing forming device;

FIG. 5 is a schematic perspective view of an intelligent micro hydrodynamic bearing forming device;

in the drawings, the components represented by the respective reference numerals are listed below: the automatic positioning device comprises a base 1, a frame supporting column 2, a servo motor 3, a tensioning bolt 4, an upper frame 5, a large belt wheel 6, a synchronous belt 7, a small belt wheel 8, a frame 9, a rolling nut 10, a rolling nut mounting table 11, a pressure head mounting table 12, a pressure head 13, a positioning mandrel 14, a convex fixing side screw rod supporting seat 15, a ball screw rod 16, a static guide rail 17, a working sliding table 18, a positioning mandrel mounting table 19, a movable guide rail 20, a convex supporting side screw rod supporting seat 21, an intelligent control box 22 and a linear sensor 23.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: an intelligent miniature fluid dynamic pressure bearing forming device comprises a base 1, a frame support column 2, a servo motor 3, a motor tensioning bolt 4, an upper frame 5, a large belt wheel 6, a synchronous belt 7, a small belt wheel 8, a frame 9, a rolling nut 10, a rolling nut mounting table 11, a pressure head mounting table 12, a pressure head 13, a positioning mandrel 14, a convex fixed side lead screw supporting seat 15, a ball lead screw 16, a static guide rail 17, a working sliding table 18, a positioning mandrel mounting table 19, a movable guide rail 20, a convex supporting side lead screw supporting seat 21, an intelligent control box 22 and a pressure head linear sensor 23, wherein the frame 9 and a group of frame support columns 2 are respectively arranged at two sides of the base 1, the upper frame 5 is arranged at the top ends of the frame 9 and the frame support columns 2, the whole device is stable through the installation of the base 1, the support columns, the frame 9 and the upper frame 5, the intelligent control box 22 is arranged on the, further supporting the frame 9.

Wherein, two quiet guide rails 17 are equipped with respectively to frame 9U type groove outer end, and frame 9U type inslot side upper and lower part is installed protruding fixed side lead screw supporting seat 15 and protruding supporting side lead screw supporting seat 21 respectively, is equipped with ball 16 between protruding supporting side lead screw supporting seat 21 and protruding fixed side lead screw supporting seat 15, and ball 16 is the free rotation between two supporting seats.

Wherein, it has two holes to open in upper frame 5 both sides, and the ball 16 axle passes protruding fixed side screw supporting seat 15 and upper frame 5 outside hole and installs little band pulley 8, and the inboard hole department of upper frame 5 is equipped with servo motor 3, and the big band pulley 6 of the inboard hole installation of upper frame 5 is passed to servo motor 3 axle, and two band pulleys pass through hold-in range 7 connection transmission, and the tensioning bolt 4 is equipped with between servo motor 3 and upper frame 5, guarantees through adjusting tensioning bolt 4 that hold-in range 7 has certain pretightning force, guarantees not skid.

Wherein, the positioning mandrel mounting platform 19 is arranged at the outer end of the U-shaped groove of the frame 9 close to the lower end of the static guide rail 17, and the positioning mandrel 14 is arranged on the positioning mandrel mounting platform 19.

Four movable guide rails 20 are arranged at two ends of the inner side of the working sliding table 18, so that the stable movement is ensured, the movable guide rails 20 move in a matched manner with the static guide rails 17 on the rack 9, the rolling nut mounting table 11 is arranged in the middle of the inner side of the working sliding table 18, the rolling nuts 10 are mounted on the rolling nut mounting table 11, when the ball screw 16 moves, the rolling nuts 10 move up and down to drive the working sliding table 18 to move up and down, the movable guide rails 20 move in a matched manner with the static guide rails 17, and the movement path of the working sliding table 18 is ensured.

Wherein, the pressure head mount table 12 is installed in the middle of the work sliding table 18 outside, and the pressure head 13 is installed in pressure head mount table 12 department, and pressure head 13 is the essential element who accomplishes the processing of liquid dynamic pressure bearing, and pressure head 13 is made through spark-erosion machining by the carbide that contains the cobalt volume lower, and the accurate reading is higher, and pressure head linear transducer 23 installs inside pressure head 13 for detect and feedback process degree.

The intelligent control box 22 is internally provided with a control switch, a single chip microcomputer and other intelligent control system modules for controlling the operation and processing process of the whole device.

The specific working principle is as follows:

when the intelligent miniature fluid dynamic pressure bearing forming device works, an operator inserts a sintered-forged copper iron alloy blank into the positioning mandrel 14, after the blank is firmly placed, a control switch in the control box is started, the control module immediately sends a pulse signal to the servo motor 3, the pulse signal drives the servo motor 3 to operate, the pulse signal sent into the control module and generated by the servo motor 3 can also help the motor to perform positioning, along with the operation of the servo motor 3, the ball screw 16 starts to rotate under the drive of the synchronous belt 7, the rolling nut 10 also starts to move, the working sliding table 18 immediately moves downwards under the drive of the rolling nut 10, the pressure head 13 starts to move downwards to press the blank, and when the pressure head 13 moves downwards to an accurate position obtained on the basis of an early calculation experiment, the pressure head linear sensor 23 immediately feeds back a positioning signal to the control module, the control module servo sends a stop signal to the motor and continues to send a new pulse signal to enable the servo motor 3 to rotate reversely, the work sliding table 18 moves upwards, and finally the automatic stop is carried out. Therefore, the closed-loop system with input and feedback can accurately control the rotation of the servo motor 3 and realize accurate positioning processing. After the apparatus is shut down, the operator removes the machined workpiece from the positioning spindle 14, completing the entire machining process.

The present invention relates to a universal standard component or a component known to those skilled in the art, and the structure and principle thereof can be known by the technical manual or by the conventional experimental method.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (7)

1. An intelligent miniature fluid dynamic pressure bearing forming device comprises a base, frame supporting columns, an upper frame, a frame and an intelligent control box, and is characterized in that the frame and a group of frame supporting columns are respectively arranged on two sides of the base, the upper frame is arranged on the top ends of the frame and the frame supporting columns, and the intelligent control box is arranged on the base on the inner side of the frame close to the frame.

2. The apparatus as claimed in claim 1, wherein two stationary rails are respectively installed at the outer ends of the U-shaped groove of the frame, the upper and lower portions of the inner side of the U-shaped groove of the frame are respectively provided with a convex fixed-side screw supporting seat and a convex supporting-side screw supporting seat, and a ball screw is installed between the convex supporting-side screw supporting seat and the convex fixed-side screw supporting seat.

3. The intelligent miniature hydrodynamic bearing forming device according to claim 2, wherein holes are formed on both sides of the upper frame, and the ball screw shaft is provided with a small pulley through the convex fixed side screw support seat and the outer hole of the upper frame; a servo motor is arranged at the inner side hole of the upper frame, a servo motor shaft penetrates through the inner side hole of the upper frame to be provided with a large belt wheel, the large belt wheel is connected with a small belt wheel through a synchronous belt in a transmission mode, and a tensioning bolt is arranged between the servo motor and the upper frame.

4. The intelligent miniature hydrodynamic bearing forming device according to claim 2, wherein the outer end of the U-shaped groove of the frame is provided with a positioning mandrel mounting table which abuts against the lower end of the static guide rail; and a positioning mandrel is arranged on the positioning mandrel mounting table.

5. The intelligent miniature fluid dynamic pressure bearing forming device as claimed in claim 2, wherein the stationary guide rail is provided with two movable guide rails, and the movable guide rails are in sliding connection with the stationary guide rails in a matching manner; the two groups of movable guide rails are provided with a working sliding table in a matched mode, the middle of the inner side of the working sliding table is provided with a rolling nut mounting table, rolling nuts are mounted on the rolling nut mounting table, and the rolling nuts and the ball screws move in a matched mode.

6. The intelligent miniature hydrodynamic bearing forming device according to claim 5, wherein a pressure head mounting table is mounted in the middle of the outer side of the working sliding table, a pressure head is mounted on the pressure head mounting table, the pressure head is made of hard alloy with low cobalt content through electric spark machining, and a pressure head linear sensor is arranged inside the pressure head.

7. The intelligent miniature fluid dynamic pressure bearing forming device as claimed in claim 1, wherein the intelligent control box is internally provided with intelligent control system modules such as a control switch and a single chip microcomputer.

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