CN101602114A - Automatic self-locking clamping mechanism of meter lathe - Google Patents
Automatic self-locking clamping mechanism of meter lathe Download PDFInfo
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- CN101602114A CN101602114A CNA2009103022834A CN200910302283A CN101602114A CN 101602114 A CN101602114 A CN 101602114A CN A2009103022834 A CNA2009103022834 A CN A2009103022834A CN 200910302283 A CN200910302283 A CN 200910302283A CN 101602114 A CN101602114 A CN 101602114A
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Abstract
The present invention relates to a kind of instrument lathe.Technical problem of the present invention is mainly solved by following technical proposals: comprise base, in base, be provided with the instrument headstock, be penetrated with pull bar in the instrument headstock, the front end of pull bar links to each other with clamp mechanism, back end of tie rod is provided with self-tightening mechanism, this self-tightening mechanism adopts the structure that can continue to provide tightening force to pull bar, can shrink pull bar automatically makes clamp mechanism be in clamped condition, also be provided with relieving mechanism, relieving mechanism separates setting with the instrument headstock, this relieving mechanism is used for automatic pushing drawing rod, makes clamp mechanism be in releasing orientation.The present invention has the following advantages: clamping mode utilizes the pretightning force of spring to clamp, and is simple and reasonable, low cost of manufacture, and its service speed is fast, and labour intensity is low, has improved operating efficiency greatly.Relieving mechanism adopts pulls lever, hydraulic cylinder or cylinder and the instrument lathe rotary main shaft is thrown off, and does not rotate with rotary main shaft, has reduced taking up room, and has saved energy consumption.
Description
Technical field
The present invention relates to a kind of lathe, especially relate to a kind of instrument lathe that is applicable to small-sized Machining of Shaft-type Parts.
Background technology
Existing instrument lathe comprises deck plate and each functional part: pull bar, roll pawl, headstock, vertical planker, cross slide and the tailstock that has thimble, because its process velocity is fast, processing cost is hanged down characteristics, so the external diameter of some small-size shaft classes such as air-conditioner and the medium and small rotor of washing machine etc. machines on the instrument bed mostly, but because instrument lathe adopts manually control, promptly manually clamp, location and locking workpiece, a kind of instrument lathe main shaft clamping device is disclosed as Chinese utility model patent 86206531U, it is by main shaft, prick head, trombone slide and block are formed, it also comprises handle, be shaped on trapezoidal externally threaded fixed bolt, be shaped on the thrust nut and the back box nut that is shaped on quiet inclined-plane B1 of thrust face A1, handle is contained on the thrust nut, thrust nut is connected on the fixed bolt with rectangular thread, and back box nut is fixed in the left end of thrust nut with screw thread.It adopts handle to be rotated and clamps and lock workpiece, and this makes that the working (machining) efficiency of instrument lathe is low, and labour intensity is big, and machining accuracy is difficult to again guarantee.Also having occurred some afterwards adopts machinery or other forms to replace manual type to clamp the measuring truck structure of locking, a kind of automatic clamping chuck device of instrument lathe is disclosed as Chinese utility model patent 200510026981.8, it comprises the tapered collet that is embedded in the front-end of spindle taper hole, be connected the trombone slide of tapered collet rear end, trombone slide and collet are by being threaded, be provided with electromagnet in the cabinet, the pedestal of electromagnet is fixed on the rear end of cabinet, electromagnet adopts straight barrel type, the armature center is shaped on through hole, armature is movably set on the trombone slide by bearing with this through hole, action by electromagnet, armature pulling trombone slide clamps tapered collet, but this structure more complicated, the manufacturing cost height, power consumption is big.Chinese in addition utility model patent 02218004.4 discloses a kind of instrument lathe, it comprises a hydraulic cylinder, the piston rod of this hydraulic cylinder links to each other with clamping bar, piston rod and dog be interlock mutually, when piston rod movement, promote clamping bar, the dog endoporus of clamping bar phase interlock is tightened or open and clamp or unclamp workpiece, but there is following shortcoming in this structure, when the driven by motor main axis rotation, and hydraulic cylinder links to each other with clamping bar, also will be rotated, and its rotating range is big like this, occupation space is also big, and increases the motor power consumption.
Summary of the invention
The present invention solves above-mentioned existing in prior technology problem, provides a kind of simple and reasonable, easy to operate automatic self-locking clamping mechanism of meter lathe.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: a kind of automatic self-locking clamping mechanism of meter lathe, comprise base, in base, be provided with the instrument headstock, be penetrated with pull bar in the instrument headstock, the front end of pull bar links to each other with clamp mechanism, it is characterized in that: back end of tie rod is provided with self-tightening mechanism, this self-tightening mechanism adopts the structure that can continue to provide tightening force to pull bar, can shrink pull bar automatically makes clamp mechanism be in clamped condition, also be provided with relieving mechanism, relieving mechanism separates setting with the instrument headstock, and this relieving mechanism is used for automatic pushing drawing rod, makes clamp mechanism be in releasing orientation.This tightening force can be regulated.
A kind of preferred version as such scheme, described self-tightening mechanism comprises that sleeve, spring and precompression adjust nut, and this sleeve is through on the pull bar and is embedded in the rear end of instrument headstock, and described spring is arranged in the sleeve, precompression is adjusted nut and is arranged on back end of tie rod, with spring compression in sleeve.Adjust the elastic force that nut can regulating spring and promptly regulate the tightening force of self-tightening mechanism by regulating precompression to the left or to the right pull bar.
As a kind of preferred version of such scheme, described spring can be rectangle spring or butterfly spring.Above-mentioned spring mainly adopts the rectangle spring, thereby it utilizes the elastic force pulling pull bar of spring to make to roll pawl workpiece is clamped, this clamping force can different dispose according to the spindle hole size specification, general miniature instrument car clamping force can reach 1500KG, the measuring truck that specification is big can dispose the rectangle spring of big specification, clamping force is greater than 1500KG, and bigger if desired clamping force can be used butterfly spring instead.Above-mentioned precompression is adjusted the size of the size of nut less than the sleeve endoporus, and this precompression is adjusted nut and can be embedded in the sleeve, makes things convenient for precompression to adjust the adjusting of nut.
A kind of preferred version as such scheme, described relieving mechanism mainly comprises cylinder, the cylinder body of this cylinder is hinged on the base, on the piston rod of cylinder, be hinged with drive link, the drive link other end is provided with bearing pin near the position of end, drive link is hinged on the base, and this termination of drive link is provided with the adjustment screw, adjusts the corresponding cooperation with back end of tie rod of screw front end.This cylinder is used for pushing drawing rod, the pawl that rolls that links to each other with pull bar is unclamped, drive link is hinged on the back end of tie rod annex, adjustment screw on the drive link and back end of tie rod mutually near and be on the same straight line, this adjustment screw is used to regulate the stroke of cylinder, promptly regulate the distance of adjusting between screw and the pull bar, the length of control pushing drawing rod, the handled easily personnel operate under different operating modes.
A kind of preferred version as such scheme, described relieving mechanism mainly comprises and pulls lever, the position that pulls the close end of lever front end is provided with bearing pin, to pull lever is hinged on the base, pull this termination of lever and be provided with the adjustment screw, adjust the corresponding cooperation of screw front end with back end of tie rod.Pull on the lever adjustment screw and back end of tie rod mutually near and be on the same straight line, this adjustment screw is used to regulate the stroke of cylinder, promptly regulate the distance of adjusting between screw and the pull bar, the length of control pushing drawing rod, the handled easily personnel operate under different operating modes.
A kind of preferred version as such scheme, pull bar between sleeve and the clamp mechanism is provided with stop nut, this stop nut has two, be separately positioned on position near sleeve and clamp mechanism, this stop nut all adopts the double nut form, can make and produce self-locking action between the nut, nut is fixing more stable.Above-mentioned stop nut is used to limit the distance that pull bar moves, and when clamping force is excessive, can prevent that rolling pawl too shrinks and defective work piece, has played protective effect to workpiece.
As a kind of preferred version of such scheme, described clamp mechanism comprises rolls pawl and dop, rolls pawl and links to each other with the pull bar front end, and the dop holding is rolled pawl and is positioned at dop at instrument headstock front end, and described dop inboard is provided with the conical surface, this conical surface with roll the pawl lower end and match.This conical surface is used for shrinking and rolls pawl, and when rolling pawl in the conical surface during indentation, the conical surface will produce a power and compress rolling pawl, makes that rolling pawl draws in to clamp part to be processed.
As a kind of preferred version of such scheme, described base is to be fixed on the measuring truck frame, and described instrument headstock is connected in the base by bearing, also is provided with driving mechanism, and this driving mechanism links to each other moving with the instrument headstock, drives the instrument headstock and is rotated.This driving mechanism can adopt motor.
Therefore, the present invention has the following advantages:
1. clamping mode utilizes the pretightning force of spring to clamp, and is simple and reasonable, low cost of manufacture, and its service speed is fast, and labour intensity is low, has improved operating efficiency greatly.
2. relieving mechanism adopts pulls lever, hydraulic cylinder or cylinder and the instrument lathe rotary main shaft is thrown off, and does not rotate with rotary main shaft, has reduced taking up room, and has saved energy consumption.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present invention;
Accompanying drawing 2 is another kind of structural representations of the present invention.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Automatic self-locking clamping mechanism of meter lathe of the present invention mainly comprises base 1, in base, be provided with instrument headstock 2, this instrument headstock and rotary main shaft interlock mutually can be rotated, be penetrated with pull bar 3 in the instrument headstock, the front end of pull bar links to each other with clamp mechanism 21, its main innovation is to be provided with self-tightening mechanism 22 at back end of tie rod, different with tradition employing hydraulic cylinder or cylinder pushing drawing rod, thereby it adopts the pretightning force pushing drawing rod of spring that clamp mechanism is clamped, being provided with relieving mechanism 23 at back end of tie rod in addition is used for pushing drawing rod and then unclamps clamp mechanism, this relieving mechanism and instrument headstock, pull bar and rotary main shaft these together the member of interlock be what throw off to be provided with, do not rotate with rotary main shaft, reduced taking up room, saved energy consumption.
Below be a kind of specific embodiment of the present invention:
Embodiment 1:
According to shown in Figure 1, include base 1, this base is fixed on the measuring truck bed surface, in this base, be provided with instrument headstock 2, this instrument headstock and rotating spindle are the one interlocks, can link to each other by bearing between instrument headstock and the base, in the instrument headstock, be penetrated with pull bar 3, be connected with clamp mechanism 21 at the pull bar front end, clamp mechanism is by rolling pawl 12 and dop 11 constitutes, and the dop holding is at instrument headstock front end, rolls pawl and is arranged in the dop and with pull bar front end screw thread and links to each other, the dop inwall is provided with the inclined-plane of inside contraction, the inclined-plane with roll the pawl lower end and match; Be provided with self-tightening mechanism 22 at back end of tie rod, this self-tightening mechanism adjusts nut 9 by sleeve 4, spring 5 and precompression and constitutes, sleeve is through on the pull bar and embeds holding in the through hole of instrument headstock rear end, spring 5 is arranged in the sleeve, precompression adjust nut be assemblied in back end of tie rod with spring compression in sleeve, above-mentioned spring adopts the rectangle spring, can adopt butterfly spring if will increase clamping force; The relieving mechanism 23 that clamp mechanism is unclamped also is set in addition, this relieving mechanism is made of cylinder 6 and drive link 7a, wherein cylinder also can replace with hydraulic cylinder, these cylinder 6 rear end of the cylinder block are hinged on the base 1, the piston rod 6a and the drive link of cylinder are hinged, the position of the close termination of the drive link other end is provided with bearing pin 14 the drive link other end is hinged on the base, this drive link termination is near back end of tie rod, also be provided with on the drive link termination and adjust screw 8, this screw and pull bar are on the same straight line; Also be provided with two stop nuts 10 on the pull bar between sleeve rear end and the clamp mechanism front end, this stop nut is separately positioned on the position near sleeve and clamp mechanism.
Pushing drawing rod moves right when work, pull bar promotes with it, and the pawl that rolls of interlock moves right together, roll pawl and then be in releasing orientation, this moment part to be processed 13 is put into and rolled pawl, releasing lever then, because the effect of self-tightening mechanism spring force, the spring pushing drawing rod is automatically toward moving left, the pull bar drive is rolled pawl and is moved to the left together, rolling pawl contacts with the inclined-plane of dop inwall, along with continuing toward moving left, rolling pawl shrinks in the inclined-plane, rolling pawl clamps part to be processed, because spring continues to provide elastic force to make clamp mechanism be in clamped condition always, when roll pawl turn left move to certain position after part to be processed just locked, this moment actuating motor, motor drives is the instrument headstock of interlock with it, self-tightening mechanism and clamp mechanism and part to be processed rotate together, then follow rest to part to be processed near beginning to carry out turning.After finishing to accessory turning, remove knife rest and stop motor, will take off processing parts this moment from clamp mechanism, then start relieving mechanism, by air pump gas is pressed into cylinder, gas promotes piston and is moved to the left, the drive link that piston rod promotes to be attached thereto is swung left, then the drive link other end is around the right mutually swing of bearing pin, adjustment screw on the drive link pushes up on the back end of tie rod, and pushing drawing rod moves right, and pull bar drives and rolls pawl and move right, and rolls pawl and just unclamps and processing parts can be taken out.
Embodiment 2:
According to shown in Figure 2, this figure has provided the another kind of structural representation of automatic self-locking clamping mechanism of meter lathe, its relieving mechanism constitutes by pulling lever 7b, this pulls lever one end and is provided with handle, to pull lever and be hinged on the base 1 being provided with bearing pin 14 near tip position away from handle one end, pull the lever termination and be provided with adjustment nut 8, this adjustment nut and back end of tie rod are on the same straight line, and other structures are consistent with the structure among the embodiment 1.
In when work, when will unclamping processing parts, operating personnel pull and pull lever handle and fail to agree swing, and the adjustment screw that then pulls on the lever is put to the right, adjustment upper connecting rod rear end, screw top, and pushing drawing rod moves right mutually, rolls pawl and just unclamps and processing parts can be taken out.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technical staff of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used terms such as base, instrument headstock, pull bar, self-tightening mechanism, clamp mechanism morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (8)
1. automatic self-locking clamping mechanism of meter lathe, comprise base, in base, be provided with the instrument headstock, be penetrated with pull bar in the instrument headstock, the front end of pull bar links to each other with clamp mechanism, it is characterized in that: pull bar (3) rear end is provided with self-tightening mechanism (22), this self-tightening mechanism adopts the structure that can continue to provide tightening force to pull bar (3), can shrink pull bar automatically makes clamp mechanism (21) be in clamped condition, also be provided with relieving mechanism (23), relieving mechanism separates setting with instrument headstock (2), and this relieving mechanism is used for automatic pushing drawing rod (3), makes clamp mechanism (21) be in releasing orientation.
2. automatic self-locking clamping mechanism of meter lathe according to claim 1, it is characterized in that described self-tightening mechanism (22) comprises sleeve (4), spring (5) and precompression adjustment nut (9), this sleeve is through the rear end that instrument headstock (2) were gone up and be embedded in to pull bar (3), described spring (5) is arranged in the sleeve, precompression is adjusted nut and is arranged on back end of tie rod, with spring compression in sleeve.
3. automatic self-locking clamping mechanism of meter lathe according to claim 2 is characterized in that described spring (5) can be rectangle spring or butterfly spring.
4. automatic self-locking clamping mechanism of meter lathe according to claim 1, it is characterized in that described relieving mechanism (23) mainly comprises cylinder (6), the cylinder body of this cylinder is hinged on the base (1), on the piston rod (6a) of cylinder, be hinged with drive link (7a), the drive link other end is provided with bearing pin (14) near the position of end, drive link is hinged on the base (1), and this termination of drive link is provided with adjusts screw (8), adjusts the corresponding cooperation with back end of tie rod of screw front end.
5. automatic self-locking clamping mechanism of meter lathe according to claim 1, it is characterized in that described relieving mechanism (23) mainly comprises pulls lever (7b), the position that pulls the close end of lever front end is provided with bearing pin (14), to pull lever is hinged on the base (1), pull this termination of lever and be provided with adjustment screw (8), adjust the corresponding cooperation of screw front end with back end of tie rod.
6. automatic self-locking clamping mechanism of meter lathe according to claim 2, it is characterized in that the pull bar (3) between sleeve (4) and the clamp mechanism (21) is provided with stop nut (10), this stop nut has two, is separately positioned on the position near sleeve and clamp mechanism.
7. automatic self-locking clamping mechanism of meter lathe according to claim 1, it is characterized in that described clamp mechanism (21) comprises rolls pawl (12) and dop (11), rolling pawl links to each other with the pull bar front end, the dop holding is at instrument headstock (2) front end, roll pawl and be positioned at dop, described dop inboard is provided with the conical surface, this conical surface with roll the pawl lower end and match.
8. automatic self-locking clamping mechanism of meter lathe according to claim 1, it is characterized in that described base (1) is to be fixed on the measuring truck frame, described instrument headstock (2) is connected in the base by bearing, also be provided with driving mechanism, this driving mechanism links to each other moving with the instrument headstock, drive the instrument headstock and be rotated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009103022834A CN101602114A (en) | 2009-05-14 | 2009-05-14 | Automatic self-locking clamping mechanism of meter lathe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009103022834A CN101602114A (en) | 2009-05-14 | 2009-05-14 | Automatic self-locking clamping mechanism of meter lathe |
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| CN101602114A true CN101602114A (en) | 2009-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2009103022834A Pending CN101602114A (en) | 2009-05-14 | 2009-05-14 | Automatic self-locking clamping mechanism of meter lathe |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785104A (en) * | 2012-08-31 | 2012-11-21 | 昆山隆正机电科技有限公司 | Small part clamping device |
| CN103274265A (en) * | 2013-05-24 | 2013-09-04 | 江阴市华方机电科技有限公司 | Automatic plate changing device of spool wire-rewinding machine |
| CN103954422A (en) * | 2014-05-13 | 2014-07-30 | 清华大学苏州汽车研究院（相城） | Electric release mechanism for automobile crash dummy calibrating test |
| CN105904219A (en) * | 2016-06-16 | 2016-08-31 | 宁波圣菲机械制造有限公司 | Sleeking and chamfering device for detonating cord installing groove of perforation cartridge case |
| CN107755715A (en) * | 2016-08-17 | 2018-03-06 | 昆山义成工具有限公司 | Automatic clamping mechanism |
| CN112008274A (en) * | 2020-08-05 | 2020-12-01 | 温州市骏承机械设备有限公司 | Milling cutter workpiece feeding device of milling cutter welding machine |
-
2009
- 2009-05-14 CN CNA2009103022834A patent/CN101602114A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785104A (en) * | 2012-08-31 | 2012-11-21 | 昆山隆正机电科技有限公司 | Small part clamping device |
| CN103274265A (en) * | 2013-05-24 | 2013-09-04 | 江阴市华方机电科技有限公司 | Automatic plate changing device of spool wire-rewinding machine |
| CN103274265B (en) * | 2013-05-24 | 2015-11-18 | 江阴市华方机电科技有限公司 | The automatic Nisc changing device of spool take-up |
| CN103954422A (en) * | 2014-05-13 | 2014-07-30 | 清华大学苏州汽车研究院（相城） | Electric release mechanism for automobile crash dummy calibrating test |
| CN103954422B (en) * | 2014-05-13 | 2016-12-07 | 清华大学苏州汽车研究院（相城） | Electronic relieving mechanism for car crash dummy rating test |
| CN105904219A (en) * | 2016-06-16 | 2016-08-31 | 宁波圣菲机械制造有限公司 | Sleeking and chamfering device for detonating cord installing groove of perforation cartridge case |
| CN107755715A (en) * | 2016-08-17 | 2018-03-06 | 昆山义成工具有限公司 | Automatic clamping mechanism |
| CN112008274A (en) * | 2020-08-05 | 2020-12-01 | 温州市骏承机械设备有限公司 | Milling cutter workpiece feeding device of milling cutter welding machine |
| CN112008274B (en) * | 2020-08-05 | 2022-03-11 | 温州市骏承机械设备有限公司 | Milling cutter workpiece feeding device of milling cutter welding machine |
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Application publication date: 20091216 |