CN203214873U - Contacting compensated type sealing device for servo tool holder - Google Patents
Contacting compensated type sealing device for servo tool holder Download PDFInfo
- Publication number
- CN203214873U CN203214873U CN 201320197997 CN201320197997U CN203214873U CN 203214873 U CN203214873 U CN 203214873U CN 201320197997 CN201320197997 CN 201320197997 CN 201320197997 U CN201320197997 U CN 201320197997U CN 203214873 U CN203214873 U CN 203214873U
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- metallic sleeve
- sleeve gasket
- sealing device
- cavity
- type sealing
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Abstract
The utility model provides a contacting compensated type sealing device for a servo tool holder. The contacting compensated type device comprises a tool holder base. A valve body is fixedly arranged inside the tool holder base. A cavity is arranged inside the valve body, an elastic part is arranged on the bottom of the cavity, and a cutting fluid inlet which is communicated with the cavity is formed in the lower portion of the valve body. The outer wall of the valve body, where the cutting liquid inlet is contacted with the inner wall of the tool holder base, is provided with an end face sealing ring. A metal sealing cover which is closely contacted with the inner wall of the cavity is arranged above the elastic part, and a rotating tool table is arranged above the metal sealing cover. The rotating tool table and the metal sealing cover are in surface contact and can rotate relatively, and a gap is reserved between the bottom face of the rotating tool table and the upper end face of the valve body. The contacting compensated type sealing device for the servo tool holder has good sealing performance, meanwhile, reduces the frictional damping in rotating tool changing process, and prolongs the service life of the sealing device.
Description
Technical field
The utility model relates to the digital control processing field, belongs to the matching used functional part of a kind of numerical control machine tool, refers to that especially a kind of servo saddle is with contacting compensation seal arrangement.
Background technique
Along with science and technology further develops, the accessory kit that numerical control machine tool is traditional---knife rest is higher towards automaticity, control is succinct more, the location is accurate more, tool-changing speed direction fast development faster.Given this, the actuating motor of superior performance, accurate complicated calibration part more and more are applied in the knife rest.Because actuating motor, precision indexing components and parts have strict drying, clean requirement to Environmental Conditions, make being applied in when raising labour efficiency of these New Product, also brought the new problem of servo saddle protection, sealing.
Concerning the use of numerical control machine tool, in the processing working angles, must provide a large amount of cutting fluids to reduce the temperature of cutter and workpiece by knife rest itself.And owing to add the tool changing requirement in man-hour, servo saddle under system's control with higher frequency transposition.In the transposition process, rotating knife platform and tool rest bracket can relatively rotate and form dislocation.Cutting fluid is to supply with in mode continuously in the said process, in the case, might cause cutting fluid leaks, in case knife rest inside is leaked and entered to cutting fluid, precision drive, the calibration part of meeting corrosion knife rest inside, and can cause burning of actuating motor, thus cause parking maintenance accident, cause great economic loss.
At present, at this problem, the method for commonplace employing is that two faces in relative movement arrange O RunddichtringO or rectangular loop in the tool holder designs manufacturing, because these two kinds of seal rings are the rubber material, can produce bigger damping in use, influence the tool changing of servo saddle.And after using a period of time, because abrasive action causes seal ring to lose efficacy and is exceedingly fast, therefore in actual production, need to change frequently the seal ring of inefficacy, increased the frequency of parking maintenance, cause bigger economic loss.
The model utility content
In order to address the above problem, the utility model proposes a kind of servo saddle with contacting compensating type sealing device, the frictional damping when when having good seal performance concurrently, reducing to rotate tool changing, and the working life of prolongation seal arrangement.
The technical solution of the utility model is achieved in that
A kind of servo saddle comprises tool rest bracket with the contact compensating type sealing device, is set with valve body in the described tool rest bracket;
Be provided with cavity in the described valve body, described cavity bottom is provided with elastic member, and the bottom of described valve body has the cutting fluid entrance that is connected with described cavity;
Described cutting fluid ingress and the contacted described valve outer wall of described tool rest bracket inwall are provided with end-face seal ring;
The top of described elastic member is provided with the metallic sleeve gasket that closely contacts with described cavity inner wall, the top of described metallic sleeve gasket is provided with the rotating knife platform, face contacts and can relatively rotate between described rotating knife platform and the described metallic sleeve gasket, leaves the gap between the bottom surface of described rotating knife platform and the upper-end surface of described valve body.
As to improvement of the technical scheme, the inwall surface of contact of described metallic sleeve gasket and described cavity is provided with seal ring.
As further improvement of the utility model, described metallic sleeve gasket is set to two, is respectively external metallic sleeve gasket, built-in metal stuffing box gland; The outer wall of described external metallic sleeve gasket closely contacts with the inwall of described cavity, and the outer wall of described built-in metal stuffing box gland closely contacts with the inwall of described external metallic sleeve gasket; Described cavity bottom is provided with first elastic member and second elastic member, and described external metallic sleeve gasket is arranged on the top of described first elastic member; Described built-in metal stuffing box gland is arranged on the top of described second elastic member.
When adopting the scheme of two metallic sleeve gaskets, external metallic sleeve gasket and cavity inner wall surface of contact are provided with first seal ring, and described built-in metal stuffing box gland and external metallic sleeve gasket surface of contact are provided with second seal ring.
As a kind of optimal way of technique scheme, described elastic member is helical spring.When adopting two metallic sleeve gaskets, the second helical spring internal diameter is less than first helical spring and be arranged at the first helical spring inside.
As the further improvement to technique scheme, the bottom surface of described rotating knife platform is the wear-resisting bottom surface through high frequency hardening.
As a kind of optimal way of the metallic sleeve gasket of technique scheme, described metallic sleeve gasket is the brass stuffing box gland.When adopting two metallic sleeve gaskets, described first metallic sleeve gasket and second metallic sleeve gasket are the brass stuffing box gland.Described brass stuffing box gland preferably adopts H62 brass.
Because normally realize sealing via seal ring between the metal bottom surface of rotating knife platform and the stuffing box gland, and the damping due to rotation that the rubber material of seal ring can increase the rotating knife platform.And the servo saddle that adopts above technological scheme is with the contact compensating type sealing device, because the metal bottom surface of rotating knife platform directly contacts with the upper-end surface of metallic sleeve gasket, rather than contacts nonmetal seal ring such as rubber, thereby reduced the damping due to rotation of rotating knife platform.
When especially adopting H62 brass stuffing box gland, because brass itself has lubricity, can make the damping due to rotation of rotating knife platform littler.
And because the support of elastic member, the wearing and tearing of metallic sleeve gasket upper-end surface can servo-actuatedly compensate, and have prolonged sealing life, significantly reduce the frequency of parking maintenance fault, have improved the continuity of producing, and have improved economic benefit.And because the stuffing box gland upper-end surface no longer needs to adopt rubber seal to seal, the energy and material have been saved, more energy-conserving and environment-protective.
When especially adopting external and built-in double seal to overlap, the inhomogeneous cutting fluid of bringing of having avoided wearing and tearing is leaked, and has obtained better sealing effect.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of servo saddle with contact compensating type sealing device first embodiment.
Fig. 2 is the structural representation of servo saddle with contact compensating type sealing device second embodiment.
Among Fig. 1: the 1-tool rest bracket; The 2-valve body; The 3-helical spring; 4-brass stuffing box gland; 5-rotating knife platform; The 6-seal ring; The 7-end-face seal ring; 8-cutting fluid entrance.
Among Fig. 2: the 1-tool rest bracket; The 2-valve body; 31-first helical spring; 32-second helical spring; The external brass stuffing box gland of 41-; The built-in brass stuffing box gland of 42-; 5-rotating knife platform; 61-first seal ring; 62-second seal ring; The 7-end-face seal ring; 8-cutting fluid entrance.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
First embodiment is illustrated in figure 1 as the servo saddle that is provided with brass stuffing box gland contact compensating type sealing device, comprises tool rest bracket 1; Be set with valve body 2 on the tool rest bracket; Valve inner is provided with cavity, and the bottom of described valve body has the cutting fluid entrance 8 that is connected with described cavity; Described cutting fluid ingress and the contacted described valve outer wall of described tool rest bracket inwall are provided with end-face seal ring 7; Cavity bottom is provided with helical spring 3; The helical spring top is provided with brass stuffing box gland 4, and described brass stuffing box gland outer wall is the inwall of the described cavity of contact closely, and brass stuffing box gland and cavity inner wall surface of contact are provided with seal ring 6; The top of described brass stuffing box gland 4 is provided with rotating knife platform 5, face contacts and can relatively rotate between described rotating knife platform and the described brass stuffing box gland 4, leave the gap between the upper-end surface of the bottom surface of described rotating knife platform 5 and described valve body 2, the rotating knife platform can be with respect to described tool rest bracket rotation.
Second embodiment is illustrated in figure 2 as the servo saddle that is provided with two brass stuffing box glands contact compensating type sealing device, comprises tool rest bracket 1; Be set with valve body 2 on the tool rest bracket; Valve inner is provided with cavity, and the bottom of described valve body has the cutting fluid entrance 8 that is connected with described cavity; Described cutting fluid ingress and the contacted described valve outer wall of described tool rest bracket inwall are provided with end-face seal ring 7; Described cavity bottom is provided with first helical spring, 31, the first helical spring inside and is provided with second helical spring 32; First helical spring, 31 tops are provided with external brass stuffing box gland 41, the second helical springs 32 tops and are provided with built-in brass stuffing box gland 42; Described external brass stuffing box gland 41 outer walls are the inwall of the described cavity of contact closely; Described built-in brass stuffing box gland 42 is arranged on the inside of described external brass stuffing box gland 41, and the outer wall of described built-in brass stuffing box gland 42 closely contacts the inwall of described external brass stuffing box gland 41; Described external brass stuffing box gland 41 is provided with first seal ring 61 with the cavity inner wall surface of contact; Built-in brass stuffing box gland 42 is provided with second seal ring 62 with external brass stuffing box gland 41 surface of contact; External brass stuffing box gland 41 is provided with rotating knife platform 5 with built-in brass stuffing box gland 42, the face that is between described rotating knife platform and described external brass stuffing box gland 41 and the described built-in brass stuffing box gland 42 contacts and can relatively rotate, leave the gap between the upper-end surface of the bottom surface of described rotating knife platform 5 and described valve body 2, rotating knife platform 5 can be with respect to described tool rest bracket rotation.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. a servo saddle is characterized in that: comprise tool rest bracket, be set with valve body in the described tool rest bracket with the contact compensating type sealing device;
Be provided with cavity in the described valve body, described cavity bottom is provided with elastic member, and the bottom of described valve body has the cutting fluid entrance that is connected with described cavity;
Described cutting fluid ingress and the contacted described valve outer wall of described tool rest bracket inwall are provided with end-face seal ring;
The top of described elastic member is provided with the metallic sleeve gasket that closely contacts with described cavity inner wall, the top of described metallic sleeve gasket is provided with the rotating knife platform, face contacts and can relatively rotate between described rotating knife platform and the described metallic sleeve gasket, leaves the gap between the bottom surface of described rotating knife platform and the upper-end surface of described valve body.
2. according to the described servo saddle of claim 1 contact compensating type sealing device, it is characterized in that: the inwall surface of contact of described metallic sleeve gasket and described cavity is provided with seal ring.
3. according to the described servo saddle of claim 2 contact compensating type sealing device, it is characterized in that: described elastic member is helical spring.
4. according to the described servo saddle of claim 1 contact compensating type sealing device, it is characterized in that: described metallic sleeve gasket is set to two, is respectively external metallic sleeve gasket, built-in metal stuffing box gland;
The outer wall of described external metallic sleeve gasket closely contacts with the inwall of described cavity, and the outer wall of described built-in metal stuffing box gland closely contacts with the inwall of described external metallic sleeve gasket;
Described cavity bottom is provided with first elastic member and second elastic member, and described external metallic sleeve gasket is arranged on the top of described first elastic member; Described built-in metal stuffing box gland is arranged on the top of described second elastic member.
5. according to the described servo saddle of claim 4 contact compensating type sealing device, it is characterized in that: the inwall surface of contact of described external metallic sleeve gasket and described cavity is provided with first seal ring, and the surface of contact of described built-in metal stuffing box gland and described external metallic sleeve gasket is provided with second seal ring.
6. according to the described servo saddle of claim 5 contact compensating type sealing device, it is characterized in that: described first elastic member is first helical spring, described second elastic member is second helical spring, and the described second helical spring internal diameter is less than described first helical spring and be arranged in described first helical spring.
7. according to each described servo saddle of claim 1 to 3 contact compensating type sealing device, it is characterized in that: described metallic sleeve gasket is the brass stuffing box gland.
8. according to each described servo saddle of claim 4 to 6 contact compensating type sealing device, it is characterized in that: described first metallic sleeve gasket and described second metallic sleeve gasket are the brass stuffing box gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320197997 CN203214873U (en) | 2013-04-19 | 2013-04-19 | Contacting compensated type sealing device for servo tool holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320197997 CN203214873U (en) | 2013-04-19 | 2013-04-19 | Contacting compensated type sealing device for servo tool holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214873U true CN203214873U (en) | 2013-09-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320197997 Expired - Fee Related CN203214873U (en) | 2013-04-19 | 2013-04-19 | Contacting compensated type sealing device for servo tool holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214873U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105881093A (en) * | 2016-06-15 | 2016-08-24 | 中禾亚股份有限公司 | High-pressure cutting fluid guide device of machine tool knife tower |
| CN109692974A (en) * | 2018-11-26 | 2019-04-30 | 北京星航机电装备有限公司 | A kind of universal cutting tool mounting rack |
-
2013
- 2013-04-19 CN CN 201320197997 patent/CN203214873U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105881093A (en) * | 2016-06-15 | 2016-08-24 | 中禾亚股份有限公司 | High-pressure cutting fluid guide device of machine tool knife tower |
| CN105881093B (en) * | 2016-06-15 | 2018-04-03 | 中禾亚股份有限公司 | Instrument machine knife tower height presses cutting liquid water guiding device |
| CN109692974A (en) * | 2018-11-26 | 2019-04-30 | 北京星航机电装备有限公司 | A kind of universal cutting tool mounting rack |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 |