CN104308630A - Micro feeding mechanism - Google Patents
Micro feeding mechanism Download PDFInfo
- Publication number
- CN104308630A CN104308630A CN201410544178.2A CN201410544178A CN104308630A CN 104308630 A CN104308630 A CN 104308630A CN 201410544178 A CN201410544178 A CN 201410544178A CN 104308630 A CN104308630 A CN 104308630A
- Authority
- CN
- China
- Prior art keywords
- handle
- gear
- clutch
- center gear
- leading screw
- 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
Links
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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
-
- 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
- B23Q5/402—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw in which screw or nut can both be driven
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
- B24B47/203—Drives or gearings; Equipment therefor relating to feed movement driven by hand
Abstract
The invention relates to the field of mechanical processing, in particular to a micro feeding mechanism, which comprises a screw rod, a handle, a fixed center gear, a movable center gear, a hand wheel and a jaw clutch, wherein the handle is fixedly connected with one end of the screw rod, the fixed center gear is glidingly connected with the screw rod, the movable center gear is fixedly connected with the screw rod in a sheathing way, and is positioned between the handle and the fixed center gear, the hand wheel is glidingly connected with the screw rod, and is positioned between the handle and the movable center gear, the handle wheel is provided with a rotary shaft, one end of the rotary shaft is rotationally connected with the handle wheel, a first planetary gear and a second planetary gear sheath the rotary shaft, the first planetary gear near the free end is engaged with the fixed center gear, the jaw clutch sheaths the screw rod, and is positioned between the movable center gear and the handle, the jaw clutch comprises a left half clutch and a right half clutch which are matched, the left half clutch is fixedly connected with the handle, and the right half clutch is fixedly connected with the hand wheel. By adopting the technical scheme, the micro feeding mechanism has the advantage that the feeding speed can be changed.
Description
Technical field
The present invention relates to field of machining, specifically a kind of microfeed structure.
Background technology
Microfeed structure refers to that stroke is little, the accurate feed mechanism that precision is high, highly sensitive, and it is the key device that precision instrument and mechanism realize feeding with high precision.At present, micro-feed mechanism is applied widely on lathe, usually matches with grinding tool, stage property etc., effectively can improve the machining accuracy of product.
Existing microfeed structure ubiquity problem is exactly: the feeding that only can realize a kind of speed, can not change feed speed, causes working (machining) efficiency lower.
Summary of the invention
The invention is intended to the microfeed structure that a kind of alterable feed speed is provided.
A kind of microfeed structure, comprises leading screw;
One handle, is fixed in one end of leading screw;
One fixed center gear, is slidably connected with leading screw;
One activity centre gear, fixedly sleeved in leading screw, and between handle and fixed center gear;
One handwheel, be slidably connected with leading screw, and between handle and activity centre gear, described handwheel is provided with a rotating shaft, one end of rotating shaft is connected with hand wheel rotating, rotating shaft is arranged with first planet gear and the second planetary gear, near first planet gear and the fixed center gears meshing of free end;
One jaw clutch, is sheathed on leading screw, and between activity centre wheel and handle; Comprise the left half-clutch and right semi-clutch that match, described left half-clutch and handle are fixed, and right semi-clutch and handwheel are fixed.
Further, described handwheel is provided with a bearing, and rotating shaft is located in bearing.
Compared with prior art beneficial effect of the present invention is:
During use, only need fixed center gear to be fixed on machine tool frame.When by pulling handle to make two parts of jaw clutch open, and make the second planetary gear and activity centre gears meshing; Now, rotate handwheel, planetary gear will revolve round the sun around fixed center gear, because fixed center gear maintains static, first planet gear just will certainly drive rotating shaft rotation, rotating shaft drives the second central gear rotation simultaneously, thus drives activity centre pinion rotation, then drives leading screw to realize trace and feeds.
When making jaw clutch two parts close by lower handle, handle and leading screw are connected as a single entity, and now, handle circles, and leading screw circles, and can realize feeding faster.
Structure of the present invention is simple, and the trace that can realize two kinds of speed feeds, and can effectively improve machine tooling efficiency, is applicable to the lathe that various needs trace feeds.
Accompanying drawing explanation
Fig. 1 is the structural representation of microfeed structure of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
As described in Figure 1, a kind of microfeed structure, comprises leading screw 1, described leading screw 1 is arranged with fixed center gear 2, and one end of leading screw 1 is provided with handle 3, is provided with the jaw clutch, handwheel 6, the activity centre gear 7 that are socketed on leading screw 1 between described handle 3 and fixed center gear 2 successively, described handle 3 and activity centre gear 7 are fixedly connected with leading screw 1 respectively, and described fixed center gear 2 and handwheel 6 are slidably connected with leading screw 1 respectively, described jaw clutch comprises the left half-clutch 51 and right semi-clutch 52 that match, described left half-clutch 51 is fixed with handle 3, right semi-clutch 52 is fixed with handwheel 6, and described handwheel 6 is provided with a bearing near the end face of activity centre gear 7, and rotating shaft 8 is located in bearing, rotating shaft 8 is socketed with first planet gear 9 and the second planetary gear 10, and two planetary gears are all fixed in rotating shaft 8, first planet gear 9 near free end engages with fixed center gear 2, only have when two parts of jaw clutch 5 separate, second planetary gear 10 could engage with activity centre gear 7, now, rotate handwheel 6, first planet gear 9 will revolve round the sun around fixed center gear 2, because fixed center gear 2 maintains static, first planet gear 9 just will certainly drive rotating shaft 8 rotation, rotating shaft 8 drives the second planetary gear 10 rotation simultaneously, thus drive activity centre gear 7 to rotate, then drive leading screw 1 to realize trace to feed.Rotating shaft 8 realizes rotation by bearing, thus ensures the rotation of planetary gear.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.
Claims (2)
1. a microfeed structure, is characterized in that, comprises leading screw;
One handle, is fixed in one end of leading screw;
One fixed center gear, is slidably connected with leading screw;
One activity centre gear, fixedly sleeved in leading screw, and between handle and fixed center gear;
One handwheel, be slidably connected with leading screw, and between handle and activity centre gear, described handwheel is provided with a rotating shaft, one end of rotating shaft is connected with hand wheel rotating, rotating shaft is arranged with first planet gear and the second planetary gear, near first planet gear and the fixed center gears meshing of free end;
One jaw clutch, is sheathed on leading screw, and between activity centre wheel and handle; Comprise the left half-clutch and right semi-clutch that match, described left half-clutch and handle are fixed, and right semi-clutch and handwheel are fixed.
2. microfeed structure according to claim 1, is characterized in that: described handwheel is provided with a bearing, and rotating shaft is located in bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410544178.2A CN104308630A (en) | 2014-10-15 | 2014-10-15 | Micro feeding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410544178.2A CN104308630A (en) | 2014-10-15 | 2014-10-15 | Micro feeding mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104308630A true CN104308630A (en) | 2015-01-28 |
Family
ID=52364013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410544178.2A Pending CN104308630A (en) | 2014-10-15 | 2014-10-15 | Micro feeding mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104308630A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101660879B1 (en) * | 2015-11-17 | 2016-09-29 | 티아이씨(주) | Handle assembly for grander |
| CN111299522A (en) * | 2020-03-24 | 2020-06-19 | 金陵科技学院 | Mold starter for casting with two speeds |
-
2014
- 2014-10-15 CN CN201410544178.2A patent/CN104308630A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101660879B1 (en) * | 2015-11-17 | 2016-09-29 | 티아이씨(주) | Handle assembly for grander |
| CN111299522A (en) * | 2020-03-24 | 2020-06-19 | 金陵科技学院 | Mold starter for casting with two speeds |
| CN111299522B (en) * | 2020-03-24 | 2021-06-04 | 金陵科技学院 | Mold starter for casting with two speeds |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150128 |