CN202726076U - Hydraulic locking structure used for numerical control knife rest - Google Patents
Hydraulic locking structure used for numerical control knife rest Download PDFInfo
- Publication number
- CN202726076U CN202726076U CN 201220275863 CN201220275863U CN202726076U CN 202726076 U CN202726076 U CN 202726076U CN 201220275863 CN201220275863 CN 201220275863 CN 201220275863 U CN201220275863 U CN 201220275863U CN 202726076 U CN202726076 U CN 202726076U
- Authority
- CN
- China
- Prior art keywords
- fluted disc
- knife rest
- locking
- driven wheel
- backboard
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a hydraulic locking structure used for a numerical control knife rest. A driving gear is pressed with a rear baffle installed on a knife rest box body by a needle roller thrust bearing; a movable fluted disc is connected to the driving gear via bolts; the knife rest box body is provided with an annular slot; and three arc-shaped stop dogs are installed in the annular slot of the knife rest box body and are expanded by springs. When the knife rest is used for processing, hydraulic oil is respectively acted on a locking fluted disc and the rear baffle, the movable fluted disc and the locking fluted disc are tightly abutted by the rear baffle and the driving gear, and therefore the locking reliability of the fluted disc structure is guaranteed. When the movable fluted disc is dislocated, the hydraulic oil is respectively acted on the movable fluted disc and the locking fluted disc, and the arc-shaped stop dogs are used for bearing the axial force of the locking fluted disc to guarantee that the movable fluted discs flexibly rotate.
Description
Technical field
The utility model relates to a kind of hydraulic locking mechanism for numerically-controlled slide, belongs to mechanical field.
Background technology
Numerically-controlled slide is the important core functional part of numerically controlled lathe and numerical-control turn-milling Compositions of metal-working machines.When numerically-controlled slide is used for tool changing, guarantee the flexibility of cutterhead transposition; When being used for cutting, guarantee the reliability of cutterhead locking.US Patent No. 005271134A adopts shoulder hole structure, driven wheel is divided into relative two parts with bearing supports with the locking fluted disc, in the time of can guaranteeing that cutterhead unclamps, the axial force of the ledge balance locking fluted disc of shoulder hole, active toothed disk is rotated flexibly, and shoulder hole has increased the complexity of processing and assembling.And the employing via design, during the cutterhead transposition, the locking stressed extruding bearing supports of fluted disc and driven wheel, and drive active toothed disk extruding fixed tooth disk, be unfavorable for the active toothed disk flexible rotating.
Summary of the invention
The utility model provides a kind of numerically-controlled slide hydraulic locking mechanism, adopts three block arc structures, solves the transposition flexibility of active toothed disk and the problem of locking stability.
The purpose of this utility model is achieved through the following technical solutions: a kind of numerically-controlled slide hydraulic locking mechanism, it is characterized in that: the anterior fixed tooth disk of installing of knife rest casing, backboard is installed at the rear portion, driven wheel and the coaxial installation of backboard, needle bearing and needle roller thrust bearing are installed between driven wheel and the backboard, active toothed disk is connected with driven wheel, the locking fluted disc is set between knife rest casing and the driven wheel, have groove on the locking fluted disc, the spring I is installed in the groove, on the knife rest casing cannelure is arranged, three block arcs and spring II are installed on the cannelure, described block arc and knife rest casing adopt split-type structural, by spring II precompression swelling block arc.
The strip target is fixed by screws on the driven wheel, and target can rotate around screw axis.
The beneficial effects of the utility model: the utility model adopts said structure, knife rest is used for adding man-hour, and hydraulic oil acts on locking fluted disc and the backboard, by needle roller thrust bearing, driven wheel, active toothed disk and locking fluted disc are fitted tightly, guarantee the reliable lock of active toothed disk.When the active toothed disk transposition, hydraulic oil acts on active toothed disk and the locking fluted disc, and the axial force of block arc balance locking fluted disc guarantees that active toothed disk rotates flexibly.Split type block arc structure is convenient to processing and assembling.Target can rotate around screw axis, is convenient to the relative position between assembling process adjusting proximity switch and target, thereby determines dead-center position, reduces the process segment to the requirement of target machining accuracy.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 be among Fig. 1 A-A to cross section view.
Fig. 3 be among Fig. 1 B to partial view.
The specific embodiment
A kind of numerically-controlled slide hydraulic locking mechanism, backboard 9 is fixed on the knife rest casing 7 by pin 10.Driven wheel 13 and backboard 9 coaxial installations are equipped with needle bearing 11 and needle roller thrust bearing 12 between driven wheel 13 and the backboard 9, realize the relative motion of 9 of driven wheel 13 and backboards.
Locking fluted disc 5 is set between knife rest casing 7 and the driven wheel 13, has groove 5.3 on the locking fluted disc 5, spring I 6 is installed in the groove 5.3.
Leaning on the face 13.2 of driven wheel 13 is fixed with target 14 by screw 15, and target 14 produces induced signals with approach switch 16 inductions, is used for the cutterhead zero-point positioning.Target 14 adopts bars, can around the rotation of screw 15 axis, be convenient to the relative position of 14 of adjusting proximity switch 16 and targets during erection.
Cannelure 7.1 is arranged on the knife rest casing 7, three block arcs 8 and spring II 17 are installed on the cannelure 7.1, spring II 17 precompression swelling block arcs 8.Block arc 8 adopts split-type structural with the knife rest casing, is convenient to processing and assembling.
Fixed tooth disk 4 is fixed on the knife rest casing 7 by screw 3, and active toothed disk 2 is connected with driven wheel 13 by screw 1, and makes the face 13.1 that leans on of driven wheel 13 be close to needle roller thrust bearing 12, and what needle roller thrust bearing 12 was close to backboard 9 leans on face 9.1.
During obstructed hydraulic oil, the pretightning force of spring I 6 engages teeth 2.1 on teeth 5.1 and the active toothed disk 2 of locking fluted disc 5 and the teeth 4.1 on the fixed tooth disk 4, locks active toothed disk 2.Under this state, active toothed disk 2 does not rotate under the force-disturbance outside, guarantees the firm of knife rest.
When hydraulic oil is flowed into by oil pocket a5.1, locking fluted disc 5 and active toothed disk 2 are subject to the active force of hydraulic oil, locking fluted disc 5 is mobile in the other direction along C, teeth 5.5 on the locking fluted disc 5 break away from the teeth 2.1 on the active toothed disk 2 and the teeth on the fixed tooth disk 4 4.1, withstanding on the block arc 8 by face 5.4 of locking fluted disc 5, block arc 8 bears the axial force of locking fluted disc 5.Active toothed disk 2 can rotate under the driving of driven wheel 13, and active toothed disk 2 does not produce normal pressure owing to be subject to the active force of hydraulic oil on the contact-making surface of active toothed disk 2 and fixed tooth disk 4, guarantees that active toothed disk 2 rotates flexibly.
When hydraulic oil is flowed into by oil pocket b5.2, locking fluted disc 5 and backboard 9 are subject to the active force of hydraulic oil, locking fluted disc 5 moves along the C direction, hydraulic oil acts on the backboard 9, by needle roller thrust bearing 12, driven wheel 13 tension active toothed disks 2, active toothed disk 2 and locking fluted disc 5 are locked teeth 5.5, the teeth 2.1 of active toothed disk 2 and 4.1 larger pressure of existence of teeth of fixed tooth disk 4 of fluted disc 5 under the hydraulic fluid pressure effect, fit closely, guarantee the reliable lock of active toothed disk 2.
Claims (2)
1. numerically-controlled slide hydraulic locking mechanism, it is characterized in that: the anterior fixed tooth disk of installing of knife rest casing, backboard is installed at the rear portion, driven wheel and the coaxial installation of backboard, needle bearing and needle roller thrust bearing are installed between driven wheel and the backboard, active toothed disk is connected with driven wheel, the locking fluted disc is set between knife rest casing and the driven wheel, have groove on the locking fluted disc, the spring I is installed in the groove, on the knife rest casing cannelure is arranged, three block arcs and spring II are installed on the cannelure, described block arc and knife rest casing adopt split-type structural, by spring II precompression swelling block arc.
2. according to a kind of numerically-controlled slide hydraulic locking mechanism claimed in claim 1, it is characterized in that: the strip target is fixed by screws on the driven wheel, and target can rotate around screw axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220275863 CN202726076U (en) | 2012-06-13 | 2012-06-13 | Hydraulic locking structure used for numerical control knife rest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220275863 CN202726076U (en) | 2012-06-13 | 2012-06-13 | Hydraulic locking structure used for numerical control knife rest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202726076U true CN202726076U (en) | 2013-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220275863 Expired - Lifetime CN202726076U (en) | 2012-06-13 | 2012-06-13 | Hydraulic locking structure used for numerical control knife rest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202726076U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081383A (en) * | 2015-09-06 | 2015-11-25 | 烟台环球机床附件集团有限公司 | Power-off protection device for servo turret |
| CN107457607A (en) * | 2017-08-03 | 2017-12-12 | 安徽科创生产力促进中心有限责任公司 | A kind of machine tool cutting liquid constant temperature system |
| CN108994347A (en) * | 2018-09-29 | 2018-12-14 | 高邮市鑫顺机械制造有限公司 | A kind of the set lever structure and its operating method of bench drill |
-
2012
- 2012-06-13 CN CN 201220275863 patent/CN202726076U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081383A (en) * | 2015-09-06 | 2015-11-25 | 烟台环球机床附件集团有限公司 | Power-off protection device for servo turret |
| CN107457607A (en) * | 2017-08-03 | 2017-12-12 | 安徽科创生产力促进中心有限责任公司 | A kind of machine tool cutting liquid constant temperature system |
| CN108994347A (en) * | 2018-09-29 | 2018-12-14 | 高邮市鑫顺机械制造有限公司 | A kind of the set lever structure and its operating method of bench drill |
| CN108994347B (en) * | 2018-09-29 | 2020-04-07 | 高邮市鑫顺机械制造有限公司 | Locking handle structure of bench drill and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |