CN103707184A - Self-centering external grinding central spindle - Google Patents
Self-centering external grinding central spindle Download PDFInfo
- Publication number
- CN103707184A CN103707184A CN201210380317.3A CN201210380317A CN103707184A CN 103707184 A CN103707184 A CN 103707184A CN 201210380317 A CN201210380317 A CN 201210380317A CN 103707184 A CN103707184 A CN 103707184A
- Authority
- CN
- China
- Prior art keywords
- mandrel
- sliding sleeve
- self
- gland
- external grinding
- 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
- 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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
Abstract
The invention provides a self-centering external grinding central spindle comprising a central spindle, a power lock, a sliding sleeve, a pressing sleeve, a spring, a top thread and a partition. The power lock, the partition, the sliding sleeve and the spring are sequentially sleeved on the central spindle, workpieces to be processed are sleeved on the power lock and sleeves on the pressing sleeve and is limited by the top thread, and the sleeved workpieces and the self-centering external grinding central spindle are mounted on a grinder via a center hole to realize self-centering and workpiece fastening function. The self-centering external grinding central spindle is high in processing accuracy, convenient to mount and clamp and simple in operation.
Description
Technical field
The invention belongs to machinery manufacturing technology field, especially relates to a kind of self-centering external grinding mandrel, utilizes the power of the Double Tops point of grinding machine workpiece is felt relieved and compress.
Background technology
In existing technology, the cylindrical of larger workpiece grinds to process and generally adopts the mode on folder one top to carry out, this processing method is not owing to being to take endoporus completely to carry out cylindrical grinding as benchmark, the cylindrical grinding and the axiality of endoporus are not high, often do not reach product requirement, and external grinding gripping device need to be manually fastening by workpiece under lathe, be put on lathe and process again, this workpiece fixed form can not guarantee the axiality of excircle of workpiece and endoporus, labor intensive again, has affected the working (machining) efficiency of workpiece greatly.In order to guarantee the high-axiality requirement of cylindrical and the endoporus of larger workpiece, in order to have improved the working (machining) efficiency of workpiece, the device that therefore need to design a mechanism meets above-mentioned requirements.
Summary of the invention
The problem that the invention will solve is to provide a kind of self-centering external grinding mandrel, is especially applicable to foreign round the workpiece of having relatively high expectations with endoporus axiality.
For solving the problems of the technologies described above, the technical scheme that the invention adopts is: a kind of self-centering external grinding mandrel, comprise mandrel, ringfeder, sliding sleeve, gland, spring, jackscrew and baffle plate, described ringfeder, baffle plate, sliding sleeve, spring and gland are sleeved on mandrel successively, and described jackscrew is positioned on gland; Described mandrel is from left to right comprised of cylindric mandrel body one, coniform mandrel body, fixed dam and column mandrel body two successively, and place, axle center, mandrel two ends respectively has a center hole; Described ringfeder is comprised of elastic layer and rigid layer, and its endoporus is conical through hole, and this clear size of opening and coniform mandrel external surface match, and described rigid layer outer surface is cylindrical and has spline, and described ringfeder is sleeved on coniform mandrel body; Described sliding sleeve is the logical heart cover of takeing on cover on cylindrical, and this logical heart cover inwall size and cylindric mandrel body one size match, and this sliding sleeve top has a stopper slot, and described sliding sleeve is sleeved on cylindric mandrel body one; Described gland is spaghetti shape, and left end sealing right-hand member is open, outside blind end, place, axle center has center hole, the diameter of this gland is stepped increase from left to right, a part for described gland is sleeved on sliding sleeve, another part is sleeved on cylindric mandrel body one, and it is corresponding with the stopper slot at described sliding sleeve top that this gland top has a spacing hole; Described jackscrew is cylinder, and this jackscrew is arranged in the spacing hole on gland, and its bottom is positioned at the stopper slot on sliding sleeve; Described spring housing is contained on mandrel, and between gland and sliding sleeve; Described baffle plate is ring-type disk, and this baffle-plate-sleeve is contained on mandrel, and between sliding sleeve and ringfeder.
Advantage and good effect that the invention has are: owing to adopting technique scheme, workpiece can be fastened on mandrel, and can guarantee the central shaft of inner hole of workpiece and mandrel central shaft point-blank, reach self centering object; The invention is simple to operate, has saved manpower, and self-centering is accurate, has guaranteed the crudy of workpiece, has improved working (machining) efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the invention
In figure:
1, mandrel 2, ringfeder 3, sliding sleeve
4, gland 5, spring 6, jackscrew
7, baffle plate 8, center hole 11, cylindric mandrel body one
12, coniform mandrel body 13, fixed dam 14, column mandrel body two
21, elastic layer 22, rigid layer 31, cover shoulder
32, stopper slot 41, spacing hole
The specific embodiment
As shown in Figure 1, the invention provides a kind of self-centering external grinding mandrel, comprise mandrel 1, ringfeder 2, sliding sleeve 3, gland 4, spring 5, jackscrew 6 and baffle plate 7, described ringfeder 2, baffle plate 7, sliding sleeve 3, spring 5 and gland 4 are sleeved on mandrel successively, and described jackscrew 6 is positioned on gland; Described mandrel is from left to right comprised of cylindric mandrel body 1, coniform mandrel body 12, fixed dam 13 and column mandrel body 14 successively, and place, axle center, mandrel two ends respectively has a center hole 8; Described ringfeder is comprised of elastic layer 21 and rigid layer 22, its endoporus is conical through hole, this clear size of opening and coniform mandrel body 12 outer surfaces match, and described rigid layer 22 outer surfaces are cylindrical and have spline, and described ringfeder 2 is sleeved on coniform mandrel body 12; Described sliding sleeve 3 is on cylindrical, with cover, to take on 31 logical heart cover, and this logical heart cover inwall size and cylindric mandrel body one 11 sizes match, and these sliding sleeve 3 tops have a stopper slot 32, and described sliding sleeve 3 is sleeved on cylindric mandrel body 1; Described gland 4 is spaghetti shape, and left end sealing right-hand member is open, outside blind end, place, axle center has center hole 8, the diameter of this gland is stepped increase from left to right, a part for described gland is sleeved on sliding sleeve 3, another part is sleeved on cylindric mandrel body 1, and it is corresponding with the stopper slot 32 at described sliding sleeve 3 tops that these gland 4 tops have a spacing hole 41; Described jackscrew 6 is cylinder, and in this jackscrew position 6 spacing hole on gland 4 41, its bottom is positioned at the stopper slot 32 on sliding sleeve 3; Described spring 5 is sleeved on mandrel 1, and between gland 4 and sliding sleeve 3; Described baffle plate 7 is ring-type disk, and this baffle plate 7 is sleeved on mandrel 1, and between sliding sleeve 3 and ringfeder 2.
The course of work of this example: ringfeder is installed to coniform mandrel body from mandrel left end cover, the right side of encapsulation and fixed dam left side near; By baffle plate from mandrel left end cover be filled to coniform mandrel body left side and with ringfeder left side near; Sliding sleeve is filled to cylindric mandrel body one from mandrel left end cover, its right side and ringfeder left side near; Workpiece to be processed is filled to ringfeder from mandrel left end cover, workpiece right side and fixed dam left side near; Spring is filled to sliding sleeve from mandrel left end cover, the shoulder axle left side of its right-hand member and sliding sleeve near; Gland is filled to cylindric mandrel body one from mandrel left end cover, and its inner end face is near spring left end, its right side and workpiece to be processed left side near; Jackscrew is inserted to the spacing hole on gland, and insert in the stopper slot on sliding sleeve its bottom; The workpiece that cover is installed and self-centering external grinding mandrel are mounted on grinding machine by the center hole at two ends.
Above the invention embodiment is had been described in detail, but described content is only the preferred embodiment of the invention, can not be considered to for limiting the practical range of the invention.All equalization variations of doing according to the invention application range and improvement etc., within all should still belonging to the patent covering scope of the invention.
Claims (8)
1. a self-centering external grinding mandrel, is characterized in that: comprise mandrel, ringfeder, sliding sleeve, gland, spring, jackscrew and baffle plate, described ringfeder, baffle plate, sliding sleeve, spring and gland are sleeved on mandrel successively, and described jackscrew is positioned on gland.
2. self-centering external grinding mandrel according to claim 1, it is characterized in that: described mandrel is from left to right comprised of cylindric mandrel body one, coniform mandrel body, fixed dam and column mandrel body two successively, place, axle center, mandrel two ends respectively has a center hole.
3. self-centering external grinding mandrel according to claim 2, it is characterized in that: described ringfeder is comprised of elastic layer and rigid layer, its endoporus is conical through hole, this clear size of opening and coniform mandrel external surface match, described rigid layer outer surface is cylindrical and has spline, and described ringfeder is sleeved on coniform mandrel body.
4. self-centering external grinding mandrel according to claim 2, it is characterized in that: described sliding sleeve is the logical heart cover of takeing on cover on cylindrical, this logical heart cover inwall size and cylindric mandrel body one size match, this sliding sleeve top has a stopper slot, and described sliding sleeve is sleeved on cylindric mandrel body one.
5. self-centering external grinding mandrel according to claim 4, it is characterized in that: described gland is spaghetti shape, and left end sealing right-hand member is open, outside blind end, place, axle center has center hole, the diameter of this gland is stepped increase from left to right, a part for described gland is sleeved on sliding sleeve, and another part is sleeved on cylindric mandrel body one, and it is corresponding with the stopper slot at described sliding sleeve top that this gland top has a spacing hole.
6. self-centering external grinding mandrel according to claim 5, is characterized in that: described jackscrew is cylinder, and this jackscrew is arranged in the spacing hole on gland, and its bottom is positioned at the stopper slot on sliding sleeve.
7. self-centering external grinding mandrel according to claim 1, is characterized in that: described spring housing is contained on mandrel, and between gland and sliding sleeve.
8. self-centering external grinding mandrel according to claim 1, is characterized in that: described baffle plate is ring-type disk, and this baffle-plate-sleeve is contained on mandrel, and between sliding sleeve and ringfeder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210380317.3A CN103707184A (en) | 2012-10-09 | 2012-10-09 | Self-centering external grinding central spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210380317.3A CN103707184A (en) | 2012-10-09 | 2012-10-09 | Self-centering external grinding central spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103707184A true CN103707184A (en) | 2014-04-09 |
Family
ID=50400723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210380317.3A Pending CN103707184A (en) | 2012-10-09 | 2012-10-09 | Self-centering external grinding central spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103707184A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103934701A (en) * | 2014-04-11 | 2014-07-23 | 南车玉柴四川发动机股份有限公司 | Turning tool and machining method for T-joint of diesel engine oil system |
| CN107650016A (en) * | 2017-09-28 | 2018-02-02 | 繁昌县琪鑫铸造有限公司 | Rotary fixture is fixed during a kind of hub outside surface polishing |
| CN110153867A (en) * | 2019-06-24 | 2019-08-23 | 张桂莲 | Intelligent precise machinery part surface processing unit |
-
2012
- 2012-10-09 CN CN201210380317.3A patent/CN103707184A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103934701A (en) * | 2014-04-11 | 2014-07-23 | 南车玉柴四川发动机股份有限公司 | Turning tool and machining method for T-joint of diesel engine oil system |
| CN107650016A (en) * | 2017-09-28 | 2018-02-02 | 繁昌县琪鑫铸造有限公司 | Rotary fixture is fixed during a kind of hub outside surface polishing |
| CN110153867A (en) * | 2019-06-24 | 2019-08-23 | 张桂莲 | Intelligent precise machinery part surface processing unit |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140409 |