CN105127760A - Working method of linear guide rail controlled by single-chip microcomputer - Google Patents
Working method of linear guide rail controlled by single-chip microcomputer Download PDFInfo
- Publication number
- CN105127760A CN105127760A CN201510502607.4A CN201510502607A CN105127760A CN 105127760 A CN105127760 A CN 105127760A CN 201510502607 A CN201510502607 A CN 201510502607A CN 105127760 A CN105127760 A CN 105127760A
- Authority
- CN
- China
- Prior art keywords
- piston body
- guide rail
- piston
- cylinder body
- chip microcomputer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
- B23Q1/017—Arrangements of ways
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
- F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/08—Arrangements for covering or protecting the ways
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Actuator (AREA)
- Control Of Linear Motors (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The invention relates to a working method of a linear guide rail controlled by a single-chip microcomputer. A guide rail body, a sliding block and a buffer arranged at the left end of the guide rail body are adopted in the working method. The buffer comprises a cylinder body. A cylinder cover is arranged at the opening end of the cylinder body, a piston rod penetrates the cylinder cover, and a piston body assembly is arranged at the right end of the piston rod. The left end of the piston rod is fixedly connected with the left end of the guide rail body. When buffering work is carried out, the right end face of the cylinder body serves as a contact face colliding with the sliding block. An electromagnet is arranged in the side wall of the cylinder body. A pressure sensor is arranged on the right end face of the piston body assembly and connected with the single-chip microcomputer. When the sliding block collides with the right end of the cylinder body, the single-chip microcomputer is suitable for controlling a current driving module to output a current matched with the medium pressure value according to a medium pressure vale so as to attract the sliding block, and when the medium pressure value measured by the single-chip microcomputer is a balanced value, the current driving module is controlled to stop current outputting to release the sliding block.
Description
Technical field
The present invention relates to a kind of line slideway, particularly relate to a kind of method of work preventing the line slideway of rebound of slider after impact.
Background technology
Line slideway is at various precise numerical control machine, and machine industry has a wide range of applications, and the quality of its performance directly determines the precision about Digit Control Machine Tool and result of use.
Traditional line slideway mostly comprises guide rail, slide block, and slide block is spacing also can slide by opposite rail body on guide rail, and be provided with pulley in slide block, slide block realizes sliding on guide rail by the motion of pulley.
Above-mentioned the deficiencies in the prior art part is: slide block is when on guide rail, fast offset is to rail end, easily and the limited block of rail end or other objects collide, need to arrange buffer in rail end for this reason.
But slide block is when cushion at collision, because impact energy is excessive, in buffer, piston has little time work, causes slide block to have a rebound phenomenon, and what how to avoid this scene is the technical barrier of this area.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method of work preventing the line slideway of rebound of slider after impact.
The invention provides a kind of method of work being suitable for preventing the line slideway of rebound of slider after impact, comprise guide rail, be slidably fitted in the slide block on this guide rail and be located at the buffer of this guide rail left end, it is characterized in that described buffer comprises: cylindrical, and for filling the cylinder body of buffer medium, in the openend of this cylinder body, sealing is provided with cylinder cap, in the central through hole of described cylinder cap, movable sealing is combined with a piston rod, the right-hand member of this piston rod is provided with piston body assembly, and this piston body assembly is suitable for doing piston movement in described cylinder body; The left end of piston rod is fixedly connected with the left end of described guide rail; When the work of buffering, the right side of described cylinder body is as the contact surface collided with slide block; Be provided with electromagnet in the sidewall of described cylinder body, the right side of described piston body assembly is provided with the pressure sensor for detecting pressure medium, and this pressure sensor is connected with a single-chip microcomputer.
When described slide block clashes into the right part of described cylinder body, described single-chip microcomputer is suitable for according to pressure medium value, controls an electric current driver module and exports the electric current matched with this pressure medium value, make described electromagnet produce corresponding magnetic field, with slide block described in adhesive; Until described single-chip microcomputer records pressure medium value when being equilibrium value, control described electric current driver module and close output current, make described magnetic field dissipate, to discharge described slide block.
Described piston body assembly coordinates with the inwall movable sealing of described cylinder body; Described piston body assembly comprises: the coaxial left and right piston body arranged, this left and right piston body is arranged with several for making the through hole of medium axial flow, being sealed and matched between the adjacent face of left and right piston body, with when doing piston movement, medium realizes coming and going flowing by means of only each through hole on described left and right piston body; The cavity for placing motor is provided with in described left piston body, this motor is by described Single-chip Controlling, the end winding support of its rotor is connected on the central point of described right piston body, rotate for driving this right piston body according to pressure medium, to control the relative position relation of each through hole on left and right piston body, and then control medium flow, i.e. control piston movement velocity.
Compared with prior art, tool of the present invention has the following advantages: (1) the present invention produces the magnetic field that matches with surge with adhesive slide block by single-chip microcomputer, electric current driver module, and anti-limited slip block causes bounce-back because impact energy is excessive; (2) present invention overcomes in prior art due to impact energy fluctuation, and cause the technical problem that buffer cannot shrink in time, impact energy is detected by pressure sensor, and suitable adjustment medium is toward regurgitation volume, with the movement velocity of control piston body assembly, make the work of buffer energy accurate fit slide block, avoid may occur because impact energy excessive, buffer has little time compression, and causes this buffer long-term work at high pressure conditions, easily causes damage; (3) coordinated by each through hole in left and right piston body, to control medium in corresponding cylinder body toward regurgitation volume, thus change the shuttle speed of respective pistons, to alleviate the cavity pressure of cylinder body at different levels, extend the life-span of line slideway and buffer.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below basis specific embodiment and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
The structural representation of the line slideway of Fig. 1 band buffer of the present invention;
The structural representation of the piston body assembly in Fig. 2 buffer of the present invention;
The operating diagram of Fig. 3 piston body assembly of the present invention;
Fig. 4 control circuit structured flowchart of the present invention.
Wherein, 1 cylinder body, 1-1 electromagnet, 2 cylinder caps, 3 piston rods, 4 piston body assemblies, 5 line slideways, 6 pressure sensors, 7 slide blocks, 4-1 left piston body, the right piston body of 4-2,4-3 through hole, 4-4 motor, 4-5 rotor.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail:
Embodiment 1
See Fig. 1 and Fig. 4, the method for work being suitable for the line slideway of the band buffer preventing rebound of slider after impact of the present embodiment, comprising: guide rail, be slidably fitted in the slide block on this guide rail and be located at the buffer of this guide rail left end.
Described buffer comprises: cylindrical, and for filling the cylinder body 1 of buffer medium, is provided with cylinder cap 2 in the openend of this cylinder body 1, and by closure of openings, the central axis place of described cylinder cap 2 is provided with axially extended central through hole; Be engaged in this central through hole by piston rod 3 movable sealing, and this piston rod 3 right-hand member is provided with piston body assembly 4, this piston body assembly is suitable for making piston movement in described cylinder body 1; When the work of buffering, the right side of described cylinder body 1 is as the contact surface collided with slide block 7; Be provided with electromagnet 1-1 in the sidewall of described cylinder body 1, described piston body assembly 4 right side is provided with the pressure sensor 6 for detecting pressure medium, and this pressure sensor 6 is connected with a single-chip microcomputer; When described slide block 7 clashes into the right part of described cylinder body 1, described single-chip microcomputer is suitable for according to pressure medium value, control an electric current driver module and export the electric current matched with this pressure medium value, make described electromagnet 1-1 produce corresponding magnetic field, with slide block described in adhesive 7; Until described single-chip microcomputer records pressure medium value when being equilibrium value (force value when namely the hydraulic pressure value of the left and right sides of piston body assembly 4 is equal), control described electric current driver module and close output current, make described magnetic field dissipate, to discharge described slide block 7.
When described slide block 7 clashes into the right part of described cylinder body 1, described cylinder body 1 is moved to the left, piston body assembly 4 moves right relative to described cylinder body 1, in cylinder body 1, right side buffer medium is subject to larger pressure, when buffer medium flows on the left of piston body assembly 4, the pressure that in cylinder body 1, right side buffer medium is subject to reduces gradually, until the left and right sides pressure medium of described piston body assembly 4 is equal, when pressure medium value is now equilibrium value, when piston body assembly 4 quits work, slide block 7 also stops mobile.
Pressure sensor 6, such as, can adopt the gloomy P499VBS-404C in river; Described electric current driver module can adopt alternating current output unit.
The left part of line slideway 5 is fixed in the left part of described piston rod 3.
See Fig. 2 and Fig. 3, described piston body assembly 4 coordinates with the inwall movable sealing of described cylinder body 1, and this piston body assembly 4 comprises: coaxial left piston body 4-1, the right piston body 4-2 arranged, this left piston body 4-1, right piston body 4-2 are arranged with several through hole 4-3 for medium axial flow, being sealed and matched between the adjacent face of described left and right piston body, with when doing piston movement, medium realizes coming and going flowing by means of only each through hole 4-3 on described left and right piston body; The cavity for placing motor 4-4 is provided with in described left piston body 4-1, this motor 4-4 is by described Single-chip Controlling, its rotor 4-5 is connected to described right piston body 4-2, rotate for driving this right piston body 4-2 according to pressure medium, to control the relative position relation of each through hole 4-3 on left and right piston body, i.e. control medium flow.
In Fig. 3, dotted line through hole 4-3 represents it is through hole 4-3 in left piston body 4-1, solid line through hole 4-3 represents the through hole 4-3 in right piston body 4-2, arrow represents motor 4-4 rotation direction, this Fig. 2 represents respective through hole 4-3 docking operation on the mating surface of left and right piston body 4-2, to control the rate-of flow in through hole.
Described right piston body 4-2 coaxially deflects relative to right piston body 4-2, its slewing area is no more than the diameter of through hole 4-3, also deflection angle can be called, namely motor 4-4 drives right piston body 4-2 in this diameter range according to pressure medium, do to come and go and rotate, to reach the object of control medium flow, thus play the piston movement speed controlling respective pistons body assembly 4, and then alleviate pressure medium in cylinder body 1, play the object extending the buffer life-span.
Described motor 4-4 can adopt the direct current generator that precision is high, or stepper motor, or servomotor.Power pack can adopt powered battery.Battery can be installed in left or right piston body 4-2.
See Fig. 3, if described through hole 4-3 is multiple, its distribution can be that concentric circles distributes with left and right piston body 4-2.Signal data line can be placed in cylinder body 1 wall of buffer at different levels, or is directly placed in medium.
Claims (1)
1. a method of work for line slideway, line slideway comprises guide rail, is located at the buffer of this guide rail left end, it is characterized in that described buffer comprises:
For filling the cylinder body of buffer medium, in the openend, left side of this cylinder body, sealing is provided with cylinder cap, and in the central through hole of described cylinder cap, activity is combined with a piston rod, and the right-hand member of this piston rod is provided with piston body assembly;
Described piston body assembly coordinates with the inwall movable sealing of described cylinder body;
Described piston body assembly comprises: the coaxial left and right piston body arranged, this left and right piston body is arranged with several for making the through hole of medium axial flow, being sealed and matched between the adjacent face of left and right piston body, with when doing piston movement, medium realizes coming and going flowing by means of only each through hole on described left and right piston body;
Be provided with the cavity for placing motor in described left piston body, this motor is by Single-chip Controlling, and the end winding support of its rotor is connected on the central point of described right piston body,
Described method of work comprises: single-chip microcomputer drives this right piston body to rotate according to pressure medium, to control the relative position relation of each through hole on left and right piston body, and then control medium flow, i.e. control piston movement velocity.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310256103.XA CN103291746B (en) | 2013-06-25 | 2013-06-25 | A kind of linear rail preventing rebound of slider after impact |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310256103.XA Division CN103291746B (en) | 2013-06-25 | 2013-06-25 | A kind of linear rail preventing rebound of slider after impact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105127760A true CN105127760A (en) | 2015-12-09 |
Family
ID=49093128
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510502944.3A Pending CN105065549A (en) | 2013-06-25 | 2013-06-25 | Linear guide rail controlled by single-chip microcomputer |
| CN201510501541.7A Pending CN105134862A (en) | 2013-06-25 | 2013-06-25 | Linear guide rail provided with electromagnet and controlled by single-chip microcomputer |
| CN201510500225.8A Pending CN105134861A (en) | 2013-06-25 | 2013-06-25 | Linear guide rail controlled by single-chip microcomputer |
| CN201310256103.XA Active CN103291746B (en) | 2013-06-25 | 2013-06-25 | A kind of linear rail preventing rebound of slider after impact |
| CN201510502607.4A Pending CN105127760A (en) | 2013-06-25 | 2013-06-25 | Working method of linear guide rail controlled by single-chip microcomputer |
Family Applications Before (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510502944.3A Pending CN105065549A (en) | 2013-06-25 | 2013-06-25 | Linear guide rail controlled by single-chip microcomputer |
| CN201510501541.7A Pending CN105134862A (en) | 2013-06-25 | 2013-06-25 | Linear guide rail provided with electromagnet and controlled by single-chip microcomputer |
| CN201510500225.8A Pending CN105134861A (en) | 2013-06-25 | 2013-06-25 | Linear guide rail controlled by single-chip microcomputer |
| CN201310256103.XA Active CN103291746B (en) | 2013-06-25 | 2013-06-25 | A kind of linear rail preventing rebound of slider after impact |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN105065549A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671511A (en) * | 2013-12-26 | 2014-03-26 | 苏州市启扬商贸有限公司 | High-speed linear guide rail with following protection function |
| CN108907845A (en) * | 2018-08-12 | 2018-11-30 | 陕西理工大学 | A kind of limiting device of multifunction machine |
| CN109620574A (en) * | 2018-12-24 | 2019-04-16 | 日照市中医医院 | A kind of Cardiological disease cause of disease detection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3215614A1 (en) * | 1982-04-27 | 1983-02-03 | Anna Dorothea 8000 München Sapunarow-Ryffel | Hydraulic single-tube shock absorber with damping control |
| JPS6458827A (en) * | 1987-08-31 | 1989-03-06 | Matsushita Electric Ind Co Ltd | Damper device |
| CN1040269A (en) * | 1988-05-11 | 1990-03-07 | 法国石油研究所 | Prevent that mobile object from continuing the repeatedly anti-rebounding device of spring bump after clashing into another object for the first time |
| US20060049013A1 (en) * | 2004-09-03 | 2006-03-09 | Hyundai Mobis Co., Ltd | Integrated suspension system for vehicle |
| DE102008054573A1 (en) * | 2008-12-12 | 2010-06-17 | Robert Bosch Gmbh | Method for determining compression travel of two pipe-shock absorber for motor vehicle, involves determining compression path from differences of pressures, and calculating compression travel from speed |
| CN102175438A (en) * | 2011-01-14 | 2011-09-07 | 大连高金数控集团有限公司 | Device for detecting performance of high-speed heavy-load precision roller linear guide rail |
| CN202964015U (en) * | 2012-11-12 | 2013-06-05 | 苏州谷夫道自动化科技有限公司 | Movable vacuum absorption work table |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3811442B2 (en) * | 2002-11-07 | 2006-08-23 | Ｓｍｃ株式会社 | Magnetic damper and actuator having the same |
| CN101934318B (en) * | 2010-09-03 | 2012-08-01 | 江苏省南扬机械制造有限公司 | Roll forming production line for on-line punching |
| JP2012240439A (en) * | 2011-05-16 | 2012-12-10 | Suzuki Motor Corp | Shock absorber stroke detecting device of motorcycle |
| CN202833822U (en) * | 2012-08-20 | 2013-03-27 | 成都市翻鑫家科技有限公司 | Temperature measure type automobile shock absorber |
| CN102889265A (en) * | 2012-10-18 | 2013-01-23 | 徐州永佳液压设备有限公司 | Hydraulic cylinder with magnetic buffer structure |
-
2013
- 2013-06-25 CN CN201510502944.3A patent/CN105065549A/en active Pending
- 2013-06-25 CN CN201510501541.7A patent/CN105134862A/en active Pending
- 2013-06-25 CN CN201510500225.8A patent/CN105134861A/en active Pending
- 2013-06-25 CN CN201310256103.XA patent/CN103291746B/en active Active
- 2013-06-25 CN CN201510502607.4A patent/CN105127760A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3215614A1 (en) * | 1982-04-27 | 1983-02-03 | Anna Dorothea 8000 München Sapunarow-Ryffel | Hydraulic single-tube shock absorber with damping control |
| JPS6458827A (en) * | 1987-08-31 | 1989-03-06 | Matsushita Electric Ind Co Ltd | Damper device |
| CN1040269A (en) * | 1988-05-11 | 1990-03-07 | 法国石油研究所 | Prevent that mobile object from continuing the repeatedly anti-rebounding device of spring bump after clashing into another object for the first time |
| US20060049013A1 (en) * | 2004-09-03 | 2006-03-09 | Hyundai Mobis Co., Ltd | Integrated suspension system for vehicle |
| DE102008054573A1 (en) * | 2008-12-12 | 2010-06-17 | Robert Bosch Gmbh | Method for determining compression travel of two pipe-shock absorber for motor vehicle, involves determining compression path from differences of pressures, and calculating compression travel from speed |
| CN102175438A (en) * | 2011-01-14 | 2011-09-07 | 大连高金数控集团有限公司 | Device for detecting performance of high-speed heavy-load precision roller linear guide rail |
| CN202964015U (en) * | 2012-11-12 | 2013-06-05 | 苏州谷夫道自动化科技有限公司 | Movable vacuum absorption work table |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103291746A (en) | 2013-09-11 |
| CN103291746B (en) | 2015-08-26 |
| CN105134862A (en) | 2015-12-09 |
| CN105065549A (en) | 2015-11-18 |
| CN105134861A (en) | 2015-12-09 |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |
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| RJ01 | Rejection of invention patent application after publication |