CN201807932U - Machine lead screw supporting device - Google Patents
Machine lead screw supporting device Download PDFInfo
- Publication number
- CN201807932U CN201807932U CN2010205209449U CN201020520944U CN201807932U CN 201807932 U CN201807932 U CN 201807932U CN 2010205209449 U CN2010205209449 U CN 2010205209449U CN 201020520944 U CN201020520944 U CN 201020520944U CN 201807932 U CN201807932 U CN 201807932U
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- CN
- China
- Prior art keywords
- screw mandrel
- lead screw
- slide block
- radially
- lathe
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- 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.)
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Abstract
The utility model discloses a machine lead screw supporting device, comprising bearing blocks which are mounted at two ends of a lead screw and rotationally support the lead screw. One end of the lead screw is connected with a motor, the lead screw is driven by the motor, a slider is sleeved on a working threaded portion of the lead screw and provided with threads or a ball matching with threads of the lead screw, a machine moving component is arranged on the slider, when the motor drives the lead screw to rotate, the threads of the lead screw drives the slider to move along the axis of the lead screw, the machine moving component mounted on the slider works and generates radial load to the lead screw, a radial auxiliary supporting device which limits bending deformation of the lead screw is disposed between the bearing blocks for supporting the lead screw, and when the slider moves to close to and pass through the radial auxiliary supporting device of the lead screw, the radial auxiliary supporting device supports the slider so as to counteract the work load of the machine moving component on the slider to the lead screw by the aid of combined action of an inclined guiding surface on the slider and an auxiliary roller on the radial auxiliary supporting device. The machine lead screw supporting device can control work deformation of the lead screw within a precision range.
Description
Technical field
The utility model relates to a kind of bracing or strutting arrangement of transmission mechanism, particularly a kind of bracing or strutting arrangement of lathe screw mandrel.
Background technology
A large amount of use screw mandrel transmission in the at present existing lathe, the two ends of screw mandrel are provided with bearing block, screw mandrel is subjected to motor-driven, the threaded portion of screw mandrel is socketed with slide block, slide block is provided with screw thread or the ball suitable with wire rod thread, on the slide block lathe moving-member is installed simultaneously, when drive motors drives the screw mandrel rotation, wire rod thread drives slide block along the screw mandrel axial-movement, is installed on the lathe moving-member work on the slide block; The shortcoming of this device is when screw mandrel length must reach certain-length, because self gravity and be installed on the influence of the live load that the lathe moving-member on the slide block produced, can cause the bending that exceeds required precision to screw mandrel, guarantee that as needing the precision of screw mandrel just must add the diameter of big wire role in the case, the weight that this has not only increased material, the processing cost of screw mandrel but also has increased entire equipment, being increased in of this weight of equipment has the occasion of strict demand not to be accepted to weight of equipment.
The utility model content
The utility model is in order to overcome defective in the above-mentioned prior art, makes screw mandrel increase active length under the prerequisite that guarantees precision or increase radially live load under the constant situation of length by the radially auxiliary support apparatus that is provided with in the screw mandrel middle part.
The utility model discloses a kind of lathe screw mandrel bracing or strutting arrangement, comprise and be installed on the screw mandrel two ends and screw mandrel is formed rotatably supported bearing block, one end of screw mandrel links to each other with motor and is driven by it, the working thread of screw mandrel partly is socketed with slide block, slide block is provided with screw thread or the ball suitable with wire rod thread, and the lathe moving-member is installed on the slide block; When the driven by motor screw mandrel rotated, wire rod thread drove slide block along the screw mandrel axial-movement, is installed on the lathe moving-member work on the slide block and screw mandrel produced radial load; Between the bearing block of support screw, be provided with the diastrophic radially auxiliary support apparatus of restriction screw mandrel; By inclined guide face on the described slide block and the radially acting in conjunction of the auxiliary wheel on the auxiliary support apparatus, make slide block move to close, cross screw mandrel radially during auxiliary support apparatus, radially auxiliary support apparatus support slide block is to offset lathe moving-member on the slide block to the live load of screw mandrel.
Wherein, radially auxiliary support apparatus comprises the main roller that is used for the support screw middle part, main roller is provided with rotating shaft, two main rollers are one group, respectively can be around rotating shaft rotation separately, main roller shaft axis and screw mandrel axis are in the same way, leave running clearance between the outer surface of two main rollers, screw mandrel rotates and described slider tilt guiding face when not contacting with described auxiliary wheel, the outer surface on two main roller tops offsets with the lower surface of screw mandrel respectively and contacts, the resultant direction of formation and screw mandrel to radially bend direction relative.
Wherein, main roller is by roller fixed mechanism support; The roller fixed mechanism comprises a multidiameter, and the axis direction of multidiameter is consistent with the resultant direction of the formation of main roller, and the multidiameter enlarged diameter section is towards screw mandrel, and a platform is established at the enlarged diameter section top, and platform is provided with the roller wheel shaft holder; The part of the enlarged diameter section of multidiameter is socketed in the guide pipe, and guide pipe and frame are fastenedly connected, and multidiameter can slide along the inner surface axial of guide pipe; The reduced diameter section of multidiameter is socketed with the compression spring, and compression spring upper end connects with the ladder corner of multidiameter, and compression spring lower end connects with the upper surface that is socketed on the annular flange in the guide pipe; The lower surface of annular flange is subjected to being positioned at the outer bolt pushing tow of guide pipe, by regulating the elastic force of bolt adjustable springs, the elastic force that makes spring with make that screw mandrel produces to radially bend stress suitable.
Wherein, platform both sides, along the screw mandrel axial direction two side that be arranged in parallel, auxiliary wheel is installed on the outer surface of two side respectively, and the rotating shaft and the sidewall of auxiliary wheel are fastenedly connected, and shaft axis and screw mandrel axis are perpendicular; One group of convex tendon is respectively established in slide block both sides, auxiliary wheel corresponding position, and the inclined guide face is located at the convex tendon bottom, and every group of convex tendon comprises two symmetrically arranged inclined guide faces; When slide block along screw mandrel during from a lateral movement to opposite side, first guiding face offsets with auxiliary wheel and contacts, effect by the compression spring, radially auxiliary support apparatus is pressed down by integral body, this moment, screw mandrel disengaged with main roller that screw mandrel contacts again with main roller after second guiding face is crossed auxiliary wheel fully, press down in the process in the integral body of auxiliary support apparatus radially, its reaction force is used to offset lathe moving-member on the slide block to the live load of screw mandrel.
Preferably, radially the quantity of auxiliary support apparatus is adjusted the different of live load of screw mandrel with slide block according to the length of screw mandrel with being provided with at interval.
Preferably, main roller, auxiliary wheel are made by steel, harden through heat treatment in its surface.
Compared with prior art, the utlity model has following beneficial effect:
1, make screw mandrel guarantee to increase under the prerequisite of precision active length or under the constant situation of length, increase radially live load by the radially auxiliary support apparatus that screw mandrel is set.
2, under the constant situation of screw mandrel length and screw mandrel radial load, can suitably reduce the diameter of screw mandrel to save cost.
3, the weight of control appliance suitably.
Description of drawings
Fig. 1 is the forward cutaway view of the utility model lathe screw mandrel bracing or strutting arrangement;
Fig. 2 is that the A-A of Fig. 1 is to cutaway view (showing the radially structure of auxiliary support apparatus);
Fig. 3 is the partial enlarged drawing at B place among Fig. 2.
Mark the following drawings mark thereon in conjunction with the accompanying drawings:
The 1-screw mandrel, 2-slide block, 3-screw mandrel bearing, 4-screw mandrel shaft block, 5-screw mandrel driving pulley, 6-multidiameter, 61-multidiameter platform, 7-main roller rotating shaft holder, 8-main roller, 9-spring, the 10-mesa sidewalls, 11-auxiliary wheel, 12-slide block convex tendon, the 121-first inclined guide face, 122 second inclined guide faces, 13-guide pipe, the 14-screw, 15-flange, 16-bolt.
The specific embodiment
Below in conjunction with accompanying drawing, a specific embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subjected to the restriction of the specific embodiment.
Lathe screw mandrel bracing or strutting arrangement of the present utility model as shown in Figure 1, the working thread of screw mandrel 1 partly is socketed with slide block 2, the two ends socket screw mandrel bearing 3 of screw mandrel 1, screw mandrel bearing 3 is installed in the bearing block 4, one end of screw mandrel 1 is equipped with driving pulley 5, motor drives screw mandrel 1 by driving pulley 5, and slide block 2 is provided with and suitable screw thread or the ball of screw mandrel 1 screw thread, can fixedly mount lathe moving-member (not shown) on the slide block 2 simultaneously; When the driven by motor screw mandrel rotated, wire rod thread drove the axial-movement of slide block 2 along screw mandrel 1, is installed on the lathe moving-member work on the slide block 2; Be provided with the diastrophic radially auxiliary support apparatus of restriction screw mandrel between two bearing blocks 4 of support screw, by inclined guide face on the slide block 2 (first guiding face 121 as shown in Figure 1 and second guiding face 122) and the radially acting in conjunction of the auxiliary wheel 11 on the auxiliary support apparatus, make slide block 2 move to close, cross screw mandrel radially during auxiliary support apparatus, radially auxiliary support apparatus support slide block 2 is to offset lathe moving-member on the slide block 2 to the live load of screw mandrel 1.
Further as Figure 1-3, the main roller 8 of support screw is made by steel for cylinder, harden through heat treatment in its surface, main roller 8 is provided with rotating shaft, main roller rotates around the axis, two main rollers are one group, its axis parallel and with the axis of screw mandrel in the same way, stay running clearance between the outer surface of two main rollers 8, when screw mandrel 1 rotates and the inclined guide face of slide block 2 when not contacting with auxiliary wheel 11, the outer surface on main roller 8 tops offsets with the lower surface of screw mandrel 1 respectively and contacts, the resultant direction of formation and screw mandrel 1 to radially bend direction relative.
Further as Figure 1-3, fixedly the mechanism of main roller 8 comprises a multidiameter 6, and it is consistent that the axial and main roller 8 of multidiameter 6 forms resultant directions, and its enlarged diameter section is towards screw mandrel, a platform 61 is established on the enlarged diameter section top of multidiameter 6, and the upper surface of platform 61 is established main roller rotating shaft holder 7; The part enlarged diameter section of multidiameter 6 is socketed in the guide pipe 13, and guide pipe 13 is fastenedly connected by screw 14 and frame, and multidiameter 6 can slide along the inner surface axial of guide pipe 13; The reduced diameter section of multidiameter 6 is socketed with compression spring 9, and offset contact the vertical plane (being ladder corner) of the upper end of spring and multidiameter 6, and the lower end of spring 9 and the upper surface that is socketed on the interior annular flange 15 of guide pipe connect; The lower surface of annular flange 15 is subjected to being fixed in bolt 16 pushing tows of guide pipe lower end, and by regulating the elastic force that bolt 16 can regulating spring, the elastic force that makes spring is with to make screw mandrel produce the stress that radially bends suitable.
Further as Figure 1-3, multidiameter platform 61 (being the main roller fixed platform) along screw axis to two parallel side be fixed with the mesa sidewalls 10 perpendicular with the multidiameter platform, two auxiliary wheels 11 are installed in the outer surface of two side 10 respectively, auxiliary wheel 11 is made by steel, harden through heat treatment in its surface, the rotating shaft of auxiliary wheel 11 and sidewall 10 are fastenedly connected, and the axis of rotating shaft and screw mandrel axis are perpendicular; One group of convex tendon 12 is respectively established in slide block 2 both sides and auxiliary wheel 11 corresponding sections, the inclined guide face is located at every group of convex tendon bottom, every group of convex tendon established two guiding faces, wherein first guiding face 121 and second guiding face 122 are symmetrical arranged with respect to the transversal line of slide block, and two guiding faces are all suitable with the auxiliary wheel of homonymy.When slide block 2 along screw mandrel 1 during from a lateral movement to opposite side, first guiding face 121 offsets with auxiliary wheel 11 and contacts, effect by compression spring 9, radially auxiliary support apparatus is pressed down by integral body, this moment screw mandrel 1 and main roller 8 disengage until second guiding face 122 cross fully auxiliary wheel 11 afterwards screw mandrels 1 contact again with main roller 8, press down in the process in the integral body of auxiliary support apparatus radially, its reaction force is used to offset lathe moving-member on the slide block to the live load of screw mandrel.The inclined guide face of convex tendon and the interaction of auxiliary wheel can be guaranteed slide block sufficient movement in the determined working range of screw mandrel.
Compared with prior art, the utility model makes screw mandrel increase active length to increase the working range of slide block under the prerequisite that guarantees precision by the radially auxiliary support apparatus that screw mandrel is set, perhaps under the constant situation of length, increase radially live load, under the constant situation of screw mandrel length and screw mandrel radial load, can suitably reduce the diameter of screw mandrel, to save the cost weight of control appliance suitably simultaneously.
More than disclosed only be a specific embodiment of the present utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into protection domain of the present utility model.
Claims (6)
1. lathe screw mandrel bracing or strutting arrangement, comprise and be installed on the screw mandrel two ends and screw mandrel is formed rotatably supported bearing block, one end of screw mandrel links to each other with motor and is driven by it, the working thread of screw mandrel partly is socketed with slide block, slide block is provided with screw thread or the ball suitable with wire rod thread, and the lathe moving-member is installed on the slide block; When the driven by motor screw mandrel rotated, wire rod thread drove slide block along the screw mandrel axial-movement, is installed on the lathe moving-member work on the slide block and screw mandrel produced radial load; It is characterized in that, between the bearing block of support screw, be provided with the diastrophic radially auxiliary support apparatus of restriction screw mandrel; By inclined guide face on the described slide block and the radially acting in conjunction of the auxiliary wheel on the auxiliary support apparatus, make slide block move to close, cross screw mandrel radially during auxiliary support apparatus, radially the described slide block of auxiliary support apparatus support is to offset lathe moving-member on the slide block to the live load of screw mandrel.
2. lathe screw mandrel bracing or strutting arrangement according to claim 1, it is characterized in that, described radially auxiliary support apparatus comprises the main roller that is used for the support screw middle part, main roller is provided with rotating shaft, two main rollers are one group, respectively can be around rotating shaft rotation separately, described main roller shaft axis and screw mandrel axis are in the same way, leave running clearance between the outer surface of two main rollers, screw mandrel rotates and described slider tilt guiding face when not contacting with described auxiliary wheel, the outer surface on two main roller tops offsets with the lower surface of screw mandrel respectively and contacts, the resultant direction of formation and screw mandrel to radially bend direction relative.
3. lathe screw mandrel bracing or strutting arrangement according to claim 2 is characterized in that described main roller is by roller fixed mechanism support; The roller fixed mechanism comprises a multidiameter, and the axis direction of multidiameter is consistent with the resultant direction of the formation of main roller, and the multidiameter enlarged diameter section is towards screw mandrel, and a platform is established at the enlarged diameter section top, and platform is provided with the roller wheel shaft holder; The part of the enlarged diameter section of multidiameter is socketed in the guide pipe, and guide pipe and frame are fastenedly connected, and multidiameter can slide along the inner surface axial of guide pipe; The reduced diameter section of multidiameter is socketed with the compression spring, and compression spring upper end connects with the ladder corner of multidiameter, and compression spring lower end connects with the upper surface that is socketed on the annular flange in the described guide pipe; The lower surface of described annular flange is subjected to being positioned at the outer bolt pushing tow of guide pipe, by regulating the elastic force of bolt adjustable springs, the elastic force that makes spring with make that screw mandrel produces to radially bend stress suitable.
4. lathe screw mandrel bracing or strutting arrangement according to claim 3, it is characterized in that, described platform both sides, along the screw mandrel axial direction two side that be arranged in parallel, described auxiliary wheel is installed on the outer surface of two side respectively, the rotating shaft of auxiliary wheel and described sidewall are fastenedly connected, and shaft axis and screw mandrel axis are perpendicular; One group of convex tendon is respectively established in described slide block both sides, auxiliary wheel corresponding position, and described inclined guide face is located at the convex tendon bottom, and every group of convex tendon comprises two symmetrically arranged inclined guide faces; When slide block along screw mandrel during from a lateral movement to opposite side, first guiding face offsets with described auxiliary wheel and contacts, effect by described compression spring, radially auxiliary support apparatus is pressed down by integral body, this moment, screw mandrel disengaged with described main roller that screw mandrel contacts again with main roller after second guiding face is crossed auxiliary wheel fully, press down in the process in the integral body of auxiliary support apparatus radially, its reaction force is used to offset lathe moving-member on the slide block to the live load of screw mandrel.
5. according to any described lathe screw mandrel bracing or strutting arrangement in the claim 1 to 4, it is characterized in that the quantity of described radially auxiliary support apparatus is adjusted the different of live load of screw mandrel with slide block according to the length of screw mandrel with being provided with at interval.
6. lathe screw mandrel bracing or strutting arrangement according to claim 2 is characterized in that described main roller, auxiliary wheel are made by steel, hardens through heat treatment in its surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205209449U CN201807932U (en) | 2010-09-06 | 2010-09-06 | Machine lead screw supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205209449U CN201807932U (en) | 2010-09-06 | 2010-09-06 | Machine lead screw supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201807932U true CN201807932U (en) | 2011-04-27 |
Family
ID=43890880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205209449U Expired - Fee Related CN201807932U (en) | 2010-09-06 | 2010-09-06 | Machine lead screw supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201807932U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632399A (en) * | 2012-04-23 | 2012-08-15 | 苏州江源精密机械有限公司 | Screw rod supporting device on planer type milling machine with moving workbench |
| CN103223614A (en) * | 2013-04-15 | 2013-07-31 | 东莞市润星机械科技有限公司 | Lathe and screw rod support device thereof |
| CN103692281A (en) * | 2013-12-26 | 2014-04-02 | 江西中船航海仪器有限公司 | Lead screw transmission stabilizing support device |
| CN111251043A (en) * | 2020-02-17 | 2020-06-09 | 南京市腾阳机械有限公司 | Lead screw supporting device |
-
2010
- 2010-09-06 CN CN2010205209449U patent/CN201807932U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632399A (en) * | 2012-04-23 | 2012-08-15 | 苏州江源精密机械有限公司 | Screw rod supporting device on planer type milling machine with moving workbench |
| CN103223614A (en) * | 2013-04-15 | 2013-07-31 | 东莞市润星机械科技有限公司 | Lathe and screw rod support device thereof |
| CN103692281A (en) * | 2013-12-26 | 2014-04-02 | 江西中船航海仪器有限公司 | Lead screw transmission stabilizing support device |
| CN103692281B (en) * | 2013-12-26 | 2016-08-17 | 江西中船航海仪器有限公司 | A kind of screw rod transmission stable support device |
| CN111251043A (en) * | 2020-02-17 | 2020-06-09 | 南京市腾阳机械有限公司 | Lead screw supporting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20150906 |
|
| EXPY | Termination of patent right or utility model |