CN203542196U - Locating structure for ball screw - Google Patents
Locating structure for ball screw Download PDFInfo
- Publication number
- CN203542196U CN203542196U CN201320732873.2U CN201320732873U CN203542196U CN 203542196 U CN203542196 U CN 203542196U CN 201320732873 U CN201320732873 U CN 201320732873U CN 203542196 U CN203542196 U CN 203542196U
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- CN
- China
- Prior art keywords
- angular contact
- contact bearing
- pairing angular
- ball screw
- bearing
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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.)
- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of vertical lathes, and relates to a locating structure, in particular to a locating structure for a ball screw in a vertical lathe vertical tool rest. The locating structure for the ball screw comprises a vertical tool rest rotation sliding seat, a first universal pairing angular contact bearing, a second universal pairing angular contact bearing and a third universal pairing angular contact bearing are arranged in a bearing bush and are arranged on the ball screw in a sleeved mode from top to bottom in sequence, and the lower end of the third universal pairing angular contact bearing is located on a limiting step on the inner side of the lower end of the bearing bush. The locating structure for the ball screw is simple, compact and reasonable in structure, the universal pairing angular contact bearings are adopted, the structure is simple, paired mounting is convenient, and cost is lowered.
Description
Technical field
The utility model relates to a kind of location structure, and a kind of location structure that is applicable to screw mandrel in vertical car vertical cutter frame, belongs to vertical car technical field specifically.
Background technology
In vertical lathe, the positioning stablity of vertical cutter frame screw mandrel is reliable, can improve greatly the machining accuracy of lathe, what for traditional screw mandrel location structure, we generally adopted is paired angular contact bearing, yet for the words of locating with this bearing, the price of bearing is high and need to adjust trouble very when installing.In view of the problem of above-mentioned existence, in the urgent need to developing a kind of novel ball screw location structure.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point, thereby provide a kind of ball screw location structure simple in structure, ingenious, rational, can effectively solve existing ball screw and locate irrational problem, and reduce manufacturing cost, reduce the difficulty of assembling.
The technical scheme providing according to the utility model, ball screw location structure comprises vertical cutter frame rotary slide base, on vertical cutter frame rotary slide base, be bolted bearing holder (housing, cover), in bearing holder (housing, cover), be provided with ball screw, ball screw upper end projecting shaft bearing sleeve also connects motor by shaft coupling, it is characterized in that: in described bearing holder (housing, cover), be provided with the first omnipotent pairing angular contact bearing being sleeved on successively from top to bottom on ball screw, the second omnipotent pairing angular contact bearing and the 3rd omnipotent pairing angular contact bearing, the 3rd omnipotent pairing angular contact bearing lower end is positioned on the inner side limiting-position step of bearing holder (housing, cover) lower end.Between the first omnipotent pairing angular contact bearing, the second omnipotent pairing angular contact bearing and the 3rd omnipotent pairing angular contact bearing and bearing holder (housing, cover), adopt interference fits, between the first omnipotent pairing angular contact bearing, the second omnipotent pairing angular contact bearing and the 3rd omnipotent pairing angular contact bearing and ball screw, adopt interference fits.The first omnipotent pairing angular contact bearing upper end is provided with the gland that the first omnipotent pairing angular contact bearing is compressed, and gland is bolted bearing holder (housing, cover).
Further, motor is fixed on electric machine support, and electric machine support is bolted saddle rotation slide.
Further, between the first omnipotent pairing angular contact bearing and the second omnipotent pairing angular contact bearing, be provided with spacer.
Further, connect locking nut on ball screw, locking nut is positioned at the first omnipotent pairing angular contact bearing upper end, between locking nut and the first omnipotent pairing angular contact bearing, is provided with adjusting pad.
Compared with the prior art the utility model has the following advantages:
The utility model is simple in structure, compact, reasonable, adopts omnipotent pairing angular contact bearing, simple in structure, and mounted in pairing mode is convenient, and has reduced cost.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Description of reference numerals: 1-motor, 2-shaft coupling, 3-locking nut, 4-adjusting pad, 5-gland, 6-electric machine support, the omnipotent pairing angular contact bearing of 7-first, the omnipotent pairing angular contact bearing of 8-second, 9-spacer, the omnipotent pairing angular contact bearing of 10-the 3rd, 11-bearing holder (housing, cover), 12-ball screw, 13-vertical cutter frame rotary slide base.
The specific embodiment
The utility model is further described in connection with the embodiment in accompanying drawing below:
As shown in Figure 1, the utility model mainly comprises vertical cutter frame rotary slide base 13, on vertical cutter frame rotary slide base 13, is bolted bearing holder (housing, cover) 11.In bearing holder (housing, cover) 11, be provided with ball screw 12, ball screw 12 upper end projecting shaft bearing sleeves 11 also connect motor 1 by shaft coupling 2.
Described motor 1 is fixed on electric machine support 6, and electric machine support 6 is bolted saddle rotation slide 13.
In described bearing holder (housing, cover) 11, being provided with the first omnipotent pairing angular contact bearing 8 of omnipotent pairing angular contact bearing 7, second and the 3rd omnipotent pairing angular contact bearing of omnipotent pairing angular contact bearing 10, the three 10 lower ends that are sleeved on successively from top to bottom on ball screw 12 is positioned on bearing holder (housing, cover) 11 lower end inner side limiting-position steps.
Between described the first omnipotent pairing angular contact bearing 7 and the second omnipotent pairing angular contact bearing 8, be provided with spacer 9.Between the first omnipotent pairing angular contact bearing 8 of omnipotent pairing angular contact bearing 7, second and the 3rd omnipotent pairing angular contact bearing 10 and bearing holder (housing, cover) 11, adopt interference fits, between the first omnipotent pairing angular contact bearing 8 of omnipotent pairing angular contact bearing 7, second and the 3rd omnipotent pairing angular contact bearing 10 and ball screw 12, adopt interference fits.
The first omnipotent pairing angular contact bearing 7 upper ends are provided with the gland 5 that the first omnipotent pairing angular contact bearing 7 is compressed, and gland 5 is bolted bearing holder (housing, cover) 11.
On ball screw 12, connect locking nut 3, locking nut 3 is positioned at the first omnipotent pairing angular contact bearing 7 upper ends, between locking nut 3 and the first omnipotent pairing angular contact bearing 7, is provided with adjusting pad 4.
Compared with prior art, advantage is the utility model: tradition adopts paired angular contact bearing, and price is high, when installing, need to adjust, trouble very, adopts omnipotent pairing angular contact bearing structure now, simple in structure, mounted in pairing mode is convenient, and has reduced cost.
Claims (4)
1. a ball screw location structure, comprise vertical cutter frame rotary slide base (13), on vertical cutter frame rotary slide base (13), be bolted bearing holder (housing, cover) (11), in bearing holder (housing, cover) (11), be provided with ball screw (12), ball screw (12) upper end projecting shaft bearing sleeve (11) also connects motor (1) by shaft coupling (2), it is characterized in that: in described bearing holder (housing, cover) (11), be provided with the first omnipotent pairing angular contact bearing (7) being sleeved on successively from top to bottom on ball screw (12), the second omnipotent pairing angular contact bearing (8) and the 3rd omnipotent pairing angular contact bearing (10), the 3rd omnipotent pairing angular contact bearing (10) lower end is positioned on the inner side limiting-position step of bearing holder (housing, cover) (11) lower end, between the first omnipotent pairing angular contact bearing (7), the second omnipotent pairing angular contact bearing (8) and the 3rd omnipotent pairing angular contact bearing (10) and bearing holder (housing, cover) (11), adopt interference fits, between the first omnipotent pairing angular contact bearing (7), the second omnipotent pairing angular contact bearing (8) and the 3rd omnipotent pairing angular contact bearing (10) and ball screw (12), adopt interference fits, the first omnipotent pairing angular contact bearing (7) upper end is provided with the gland (5) that the first omnipotent pairing angular contact bearing (7) is compressed, and gland (5) is bolted bearing holder (housing, cover) (11).
2. ball screw location structure as claimed in claim 1, is characterized in that: it is upper that described motor (1) is fixed on electric machine support (6), and electric machine support (6) is bolted saddle rotation slide (13).
3. ball screw location structure as claimed in claim 1, is characterized in that: between described the first omnipotent pairing angular contact bearing (7) and the second omnipotent pairing angular contact bearing (8), be provided with spacer (9).
4. ball screw location structure as claimed in claim 1, it is characterized in that: at the upper locking nut (3) that connects of ball screw (12), locking nut (3) is positioned at the first omnipotent pairing angular contact bearing (7) upper end, between locking nut (3) and the first omnipotent pairing angular contact bearing (7), is provided with adjusting pad (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320732873.2U CN203542196U (en) | 2013-11-19 | 2013-11-19 | Locating structure for ball screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320732873.2U CN203542196U (en) | 2013-11-19 | 2013-11-19 | Locating structure for ball screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203542196U true CN203542196U (en) | 2014-04-16 |
Family
ID=50460364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320732873.2U Expired - Fee Related CN203542196U (en) | 2013-11-19 | 2013-11-19 | Locating structure for ball screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203542196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639817A (en) * | 2013-11-19 | 2014-03-19 | 无锡京华重工装备制造有限公司 | Ball screw positioning structure |
-
2013
- 2013-11-19 CN CN201320732873.2U patent/CN203542196U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639817A (en) * | 2013-11-19 | 2014-03-19 | 无锡京华重工装备制造有限公司 | Ball screw positioning structure |
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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: 20140416 Termination date: 20151119 |
|
| EXPY | Termination of patent right or utility model |