CN201736064U - Device for eliminating clearance at tail part of integral-type spindle unit - Google Patents
Device for eliminating clearance at tail part of integral-type spindle unit Download PDFInfo
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- CN201736064U CN201736064U CN2010201239680U CN201020123968U CN201736064U CN 201736064 U CN201736064 U CN 201736064U CN 2010201239680 U CN2010201239680 U CN 2010201239680U CN 201020123968 U CN201020123968 U CN 201020123968U CN 201736064 U CN201736064 U CN 201736064U
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- spindle box
- eliminating equipment
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Abstract
The utility model relates to the field of numerical control machine tools, in particular to a device for eliminating the clearance at the tail part of an integral-type spindle unit. The device inserted between the spindle unit and spindle box hole comprises a ring-shaped base and a ring-shaped clearance eliminating part, wherein the ring-shaped base comprises a first mounting surface and a second mounting surface; a plurality of mounting holes are formed on the circumference of the ring-shaped base; the ring-shaped clearance eliminating part is integrally formed on the first mounting surface of the ring-shaped base; the outer diameter of the ring-shaped clearance eliminating part is in interference fit with the hole at the rear end of the spindle box; and the inner diameter thereof is in interference fit with the outer diameter of the spindle unit. When in use, the ring-shaped clearance eliminating part is inserted between the spindle unit and the spindle box hole and secured on the spindle box via the mounting holes formed on the ring-shaped base, thus eliminating the clearance between the spindle box and the spindle unit and guaranteeing the accuracy and stability of the integral-type spindle unit.
Description
Technical field
The utility model relates to the Digit Control Machine Tool field, refers to a kind of device that is used to eliminate the integral spindle unit tail gap especially.
Background technology
The transmission system of present middle-size and small-size Digit Control Machine Tool, under the support of high rigidity main shaft, high accuracy high capacity bearing, under advanced machining equipment and technology support, cancelled relief arrangement mostly, simplified the structure of spindle unit like this, reduce production cost, obtained good economic benefits.But along with the continuous progress of machine tool technology and the continuous segmentation in market, the specialized factory of various functional parts also emerges in large numbers thereupon.Spindle unit more is subjected to the attention of professional production producer and lathe manufacturer as the core component of Digit Control Machine Tool.The modern machine spindle unit has been broken through the boundary of traditional assembled main shaft, and more employings are more high-revolving integral spindle unit of high accuracy or monoblock type electricity main axle unit more, and is subjected to pursuing of lathe manufacturer day by day.
It is evident that: cooperating between integral spindle unit and the main spindle box hole is interference fits, there is certain clearance, because modern middle-size and small-size lathe has been cancelled relief arrangement mostly, such being engaged in used on high accuracy and the superhigh precision main shaft and will be had problems.When adopting the assembled main shaft, the vibration that motor and belt produce when running up is eliminated under the restriction of high rigidity main shaft and high accuracy high capacity bearing substantially, can not influence the original precision of main shaft.And when integral spindle unit, the vibration that motor and belt produce when running up is transmitted by the gap between main axle unit external diameter and the main spindle box hole, influence the precision of main shaft, it is unstable to produce running when reality is used, the part of producing can produce in-and-out phenomenon, and is particularly evident when producing high-precision part.Because the integral spindle unit volume is bigger, again it is not too suitable to increase relief arrangement on main spindle box, the littler tolerance fit of the most employing of each lathe manufacturer now reduces the fit clearance between main axle unit external diameter and the main spindle box hole as much as possible, in the hope of a better relatively operating accuracy.But do two big defectives like this: 1, still can not eliminate the vibration that bring in the gap, precision control is very unstable, difficult quality guarantee.2, cause owing to parts processing has improved accuracy class: difficulty of processing strengthens, efficient reduces, three unfavorable factors of cost up.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of device easy to manufacture, with low cost, and the gap that is used to eliminate integral spindle unit tail is with precision and the stability that the Digit Control Machine Tool integral spindle unit is provided.
For solving the problems of the technologies described above, the utility model provides a kind of integral spindle unit tail backlash eliminating equipment, be inserted between described main axle unit and the main spindle box hole, described backlash eliminating equipment comprises: a ring-type pedestal, described ring-type pedestal comprises one first installed surface and one second installed surface, offers a plurality of pilot holes along the circumferential edge of described ring-type pedestal; The one ring-type crack portion that disappears, be shaped on first installed surface of described ring-type pedestal, described ring-type disappears and forms interference fit between the back stomidium of the external diameter of crack portion and described main spindle box, and described ring-type disappears and forms interference fit between the external diameter of the internal diameter of crack portion and main axle unit.
The crack portion that when backlash eliminating equipment of the present utility model uses ring-type disappeared is inserted between main axle unit and the main spindle box hole, and backlash eliminating equipment is anchored on the main spindle box by the pilot hole of offering on the described ring-type pedestal, eliminate the gap between main spindle box and the main axle unit thus, guaranteed the precision and the stability of integral spindle unit.
Further improvement of the utility model is, is equipped with a circle locating ring on second installed surface of described ring-type pedestal, can position spindle brake by this locating ring, and spindle brake is installed on second installed surface.
Further improvement of the utility model is, the described ring-type crack portion that disappears is provided with one section ring-type guide section away from an end of described ring-type pedestal, and the external diameter of described ring-type guide section is less than the disappear external diameter of crack portion of described ring-type.
Further improvement of the utility model is that second installed surface of described ring-type pedestal is provided with the dismounting screw of a plurality of and described pilot hole dislocation.
Description of drawings
Fig. 1 is equipped with the main axle unit of the utility model backlash eliminating equipment and the structural representation between the main shaft casing;
Fig. 2 a is the side sectional view of the utility model backlash eliminating equipment;
Fig. 2 b is the second installed surface front view of the utility model backlash eliminating equipment;
Fig. 3 a is the schematic perspective view of the utility model backlash eliminating equipment;
Fig. 3 b is another angle schematic perspective view of the utility model backlash eliminating equipment.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, backlash eliminating equipment 1 of the present utility model is inserted between main axle unit 2 and the main spindle box 3, further cooperates shown in Fig. 2 a to Fig. 3 b, backlash eliminating equipment 1 integral body is a circulus, mainly by ring-type pedestal 11, disappear crack portion 12 and locating ring 13 of ring-type formed, wherein:
Ring-type pedestal 11 comprises one first installed surface 111 and one second installed surface 112, along offering a plurality of pilot holes 113 that run through ring-type pedestal 11 on the circumferential edge of ring-type pedestal 11, on second installed surface 112 of ring-type pedestal 11, also be provided with a plurality of dismounting screws 114 in addition, as preferred embodiment of the present utility model, dismounting screw 114 adopts the 3-M8 screwed hole;
The ring-type crack portion 12 that disappears is shaped on first installed surface 111 of ring-type pedestal 11, this ring-type disappears the external diameter of crack portion 12 less than the external diameter of ring-type pedestal 11, but be slightly larger than the aperture of the back stomidium 31 of main spindle box 3, form interference fit between the stomidium 31 behind crack portion 12 and the main spindle box thereby ring-type is disappeared; The disappear internal diameter of crack portion 12 of this ring-type is identical with the internal diameter of ring-type pedestal 11, but is slightly less than the external diameter of main axle unit 2, thereby the formation interference that disappears between the external diameter of crack portion 12 and main axle unit 2 of ring-type when inserting is joined; Shown in Fig. 2 a, be provided with one section ring-type guide section 121 in the ring-type crack portion 12 that disappears away from an end of ring-type pedestal 11, the external diameter of this ring-type guide section 121 equals the aperture of stomidium 31 behind the main spindle box, and be slightly less than the disappear external diameter of crack portion 12 of ring-type, thereby, play the effect of guiding when ring-type disappears crack portion 12 when being inserted between main axle unit 2 and the main spindle box 3;
Locating ring 13 is shaped on second installed surface 112 of ring-type pedestal 11, thereby its internal diameter matches with the external diameter of spindle brake 21 spindle brake 21 is positioned, also offering a plurality of pilot holes 115 at second installed surface 112 is used for spindle brake 21 is assemblied in second installed surface 112, as preferred embodiment of the present utility model, pilot hole 115 adopts the 12-M5 screwed hole.
Below further introduce the processing and the assembly technology of above-mentioned backlash eliminating equipment 1:
A. to the main spindle box 3 of completion of processing and the technical parameter of main axle unit 2 detect
1, axiality, cylindricity and the actual size tolerance of check main spindle box 3 back stomidiums 31 and main spindle box 3 front aperture, the record actual numerical value also marks in the relevant position; Perpendicularity (ending pulsation) situation between check main spindle box front end face and the spindle hole, overproof as if having, can scrape with 2 pairs of facing-ups of main axle unit, make it reach requirement;
2, check main axle unit 2 outside dimension tolerances, the axiality of check front and back end external diameter, cylindricity and with the ending pulsation situation of flange face, the record actual numerical value is also marked in the relevant position;
B. according to the detection data of above-mentioned main spindle box 3, process backlash eliminating equipment of the present utility model with main axle unit 2
According to the check data of main spindle box 3, main axle unit 2, the backlash eliminating equipment after the semifinishing 1 with superfine milling processing inside and outside circle and installed surface, is reached corresponding cooperation requirement with the check of three coordinates, the record actual numerical value is also marked in the relevant position;
C. the crack portion 12 that the ring-type of the backlash eliminating equipment 1 of described completion of processing disappeared is inserted between main axle unit 2 and the main spindle box 3
According to the Various types of data principle of correspondence, allow and push gently after backlash eliminating equipment 1 and main spindle box 3 and the main axle unit 2 respective markers aligned in position (thereby when inserting earlier the guide section 121 by backlash eliminating equipment 1 front end lead guaranteed the accuracy of inserting), join and make each correlated parts of cleaning, drying behind the 6-M8 screw, again by the abovementioned steps assembling, backlash eliminating equipment 1 usefulness 6-M8 screw by being opened in the pilot hole 113 on the described ring-type pedestal 11, evenly being pressed into and being anchored on the main spindle box 3.
After being assembled to backlash eliminating equipment 1 on the main spindle box 3, again spindle brake 21 being installed on second installed surface 112 of ring-type pedestal 11 by the 12-M5 screw, and positioning by 13 pairs of spindle brakes 21 of locating ring;
When needs are dismantled, utilize dismounting screw 114 oppositely to eject backlash eliminating equipment 1, make dismounting be more prone to.
The beneficial effect that the utility model brings:
1, problem is eliminated in the gap that solves between main axle unit 2 and the main spindle box 3, has guaranteed to the full extent original precision of main shaft, is applicable to the multiple integrated machine tool spindle of bel-drivenn unit, is with a wide range of applications.
2, simple in structure, it is little to take up room, easy to assembly.
3, easy to manufacture: as only to need to cooperate the check of three coordinates just can realize with traditional diamond-making technique.
4, with low cost, the manufacturing cycle is short.
5, install this backlash eliminating equipment additional after, former main spindle box hole dimension tolerance can suitably be relaxed, processing technology becomes simply like this, it is easier to make, and has improved production efficiency and product percent of pass.
Claims (4)
1. an integral spindle unit tail backlash eliminating equipment is inserted between described main axle unit and the main spindle box hole, it is characterized in that described backlash eliminating equipment comprises:
One ring-type pedestal, described ring-type pedestal comprise one first installed surface and one second installed surface, offer a plurality of pilot holes along the circumferential edge of described ring-type pedestal;
The one ring-type crack portion that disappears, be shaped on first installed surface of described ring-type pedestal, described ring-type disappears and forms interference fit between the back stomidium of the external diameter of crack portion and described main spindle box, and described ring-type disappears and forms interference fit between the external diameter of the internal diameter of crack portion and main axle unit.
2. backlash eliminating equipment as claimed in claim 1 is characterized in that: be equipped with a circle locating ring on second installed surface of described ring-type pedestal.
3. backlash eliminating equipment as claimed in claim 1 is characterized in that: the described ring-type crack portion that disappears is provided with one section ring-type guide section away from an end of described ring-type pedestal, and the external diameter of described ring-type guide section is less than the disappear external diameter of crack portion of described ring-type.
4. as each described backlash eliminating equipment in the claim 1 to 3, it is characterized in that: second installed surface of described ring-type pedestal is provided with a plurality of dismounting screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201239680U CN201736064U (en) | 2010-03-05 | 2010-03-05 | Device for eliminating clearance at tail part of integral-type spindle unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201239680U CN201736064U (en) | 2010-03-05 | 2010-03-05 | Device for eliminating clearance at tail part of integral-type spindle unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201736064U true CN201736064U (en) | 2011-02-09 |
Family
ID=43551347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201239680U Expired - Lifetime CN201736064U (en) | 2010-03-05 | 2010-03-05 | Device for eliminating clearance at tail part of integral-type spindle unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201736064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804577A (en) * | 2010-03-05 | 2010-08-18 | 上海克迈特精密机床有限公司 | Integral spindle unit tail gap eliminating device and gap eliminating method using the same |
-
2010
- 2010-03-05 CN CN2010201239680U patent/CN201736064U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804577A (en) * | 2010-03-05 | 2010-08-18 | 上海克迈特精密机床有限公司 | Integral spindle unit tail gap eliminating device and gap eliminating method using the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGZHOU KEMT CNC TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHANGHAI KEMAITE PRECISE MACHINE TOOL CO., LTD. Effective date: 20111021 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200333 PUTUO, SHANGHAI TO: 213149 CHANGZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20111021 Address after: 213149 No. 18, sweet scented Road, Wujin Economic Development Zone, Jiangsu, Changzhou Patentee after: Changzhou Kemaite Numerical Control Technology Co., Ltd. Address before: 200333 Shanghai city Putuo District Tong Pu Lu Lane 1130 No. 7 Patentee before: Shanghai Kemaite Precise Machine Tool Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110209 |