CN100386169C - Hydraulic drill chuck - Google Patents
Hydraulic drill chuck Download PDFInfo
- Publication number
- CN100386169C CN100386169C CNB2004100928168A CN200410092816A CN100386169C CN 100386169 C CN100386169 C CN 100386169C CN B2004100928168 A CNB2004100928168 A CN B2004100928168A CN 200410092816 A CN200410092816 A CN 200410092816A CN 100386169 C CN100386169 C CN 100386169C
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- China
- Prior art keywords
- drill chuck
- oil
- grease chamber
- piston
- oiling
- 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.)
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Abstract
The present invention provides a hydraulic drill chuck which comprises a tool clamping element, an oil bath, a front oil chamber and a rear oil chamber making the clamping element fasten or unfasten the tool, an oil injection mechanism and an oil return channel for the front oil chamber and the rear oil chamber and a reversing mechanism which is communicated and switched over with the oil injection mechanism, the oil return channel, the front oil chamber and the rear oil chamber. The present invention uses a hydraulic drive structure in the drill chuck, and therefore, the reinforcement of the drill chuck is big. Using the drill chuck to make the clamping operation, the fastening force of the drill chuck is big. Compared with the traditional drill chuck, the torque force transferred by the drill chuck of the present invention is bigger, and simultaneously, the service life of the drill chuck of the present invention is longer. Moreover, the hydraulic oil flows in single direction all along in the fastening work state or the unfastening work state, and therefore, fastening the tool can not influenced by the present invention due to other external causes including the vibration, and therefore, the tool is can be stably fastened.
Description
Technical field
The present invention relates to the drill chuck technical field.
Background technology
At present, the drill chuck technical field, generally adopting the mode be threaded to drive jaw advances and retreat and clamps or loosen instrument, such as, it includes hollow drill body, along the inclined hole that circumferentially is provided with three inclinations equally spacedly, a jaw is installed slidably in each inclined hole in the drill body, be provided with a screw in the middle part annular groove of drill body, screw and each jaw interconnect by screw thread; Drive screw by drives structure again and rotate, thereby drive the jaw advance and retreat.Adopt this mode transmission, the clamping force of its jaw is restricted, and then influences the transmission of torsion.Simultaneously, screw thread wearing and tearing easily under the influence of rotation use or maloperation etc. repeatedly, thus influence its service life.And being threaded in use of screw and jaw can produce looseningly because of vibrations, and influence is to the clamping of instrument.
Summary of the invention
Technical problem to be solved by this invention provides a kind of hydraulic drill chuck that overcomes above-mentioned defective.For this reason, the present invention is by the following technical solutions: it comprises the clamping element of instrument, it also is provided with oil sump, clamping element is clamped or the grease chamber, front and back that loosens, the oiling mechanism and the way to cycle oil of grease chamber, front and back, and it also is provided with oiling mechanism and way to cycle oil are communicated with switching with the grease chamber, front and back changement.Because adopt above technical scheme, the present invention adopts the hydraulic drive structure in drill chuck, its reinforcement is big, very laborsaving when clamp operation, its clamping force is big, and the torsion of comparing its transmission with traditional drill chuck is bigger, simultaneously, than the longer service life of traditional drill chuck, and hydraulic oil is when clamping or loosening duty, all the time one-way flow, therefore, the present invention can not influence the clamping to instrument because of other external cause that comprises vibrations, and clamping is stable.
The present invention also can adopt following further technical scheme simultaneously:
Described oiling mechanism comprises check valve that is communicated with oil sump and the check valve that is communicated with changement, is provided with the oiling piston between above-mentioned two check valves.Adopt this structure, oiling is fast and reliable, and has created the structure prerequisite for the structure that the further effect of generation is set.Such as, oil sump is provided with several this kind oiling mechanisms around collet body around collet body.Like this, reinforcement is faster more reliable, and structure is compact more.The oiling piston radial of oiling mechanism be provided with and with the piston hole sliding-contact, it also is provided with the operating sleeve of oiling piston, the inwall of operating sleeve is provided with the boss that cooperates with piston.Adopt this structure, the mode of operation of drill chuck and traditional drill chuck are similar but convenient, make to manipulate more comfortablely, and reinforcement is faster.
Changement is a rotating valve, and it is provided with path between oiling mechanism and the grease chamber and the path between way to cycle oil and the grease chamber.Adopt this structure, operation is very easy, and guarantee that further drill chuck is clamping or loosening the stable of duty.
It is provided with the piston rod that acts on clamping element, and the piston on the piston rod cooperates with the grease chamber, front and back.Like this, process conveniently, structure is more reasonable, and the advance and retreat motion of clamping element is more smooth and easy reliable.
It is provided with the mount pad of clamping element.
Description of drawings
Fig. 1 is the figure that partly cuts open of the present invention.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the collet body rearview of drill body.
Fig. 4 is the B-B cutaway view of changement.
Fig. 5 is the schematic diagram of the piston rod of clamping element.
Fig. 6 is the schematic diagram of clamping element mount pad.
The specific embodiment
With reference to accompanying drawing.The present invention includes the clamping element 4 of instrument, it also is provided with oil sump 1, clamping element is clamped or the grease chamber, front and back 2,3 that loosens, the oiling mechanism and the way to cycle oil 101 of grease chamber, front and back, also is provided with oiling mechanism and way to cycle oil are communicated with switching with the grease chamber, front and back changement 5.
With reference to accompanying drawing 1, described oiling mechanism comprises check valve 6 that is communicated with oil sump and the check valve 7 that is communicated with changement, is provided with oiling piston 8 between above-mentioned two check valves.As shown in Figure 1, check valve 6 comprises a steel ball spool 18 and spring 9 behind thereof, and check valve 7 also comprises a steel ball spool 10 and spring 11 behind thereof.Oil sump is around collet body 12, be provided with several this kind oiling mechanisms around collet body, as shown in Figure 2, the oiling piston radial of oiling mechanism be provided with and with the piston hole sliding-contact, drawing reference numeral 13 is its spring, it also is provided with the operating sleeve 14 of oiling piston, and the inwall of operating sleeve is provided with the boss 15 that cooperates with piston.Drawing reference numeral is the connecting hole 16 that drill chuck cooperates with driving mechanism.As shown in Figure 3, collet body is provided with cannelure 17, cannelure 17 be communicated with all check valve 7 and simultaneously be located at collet body on path 102 be communicated with, thereby check valve 7 is communicated with changement.
Shown in Fig. 1,4, changement 5 is a rotating valve, and it is provided with oil circuit 105 and oil circuit 103,104 between oiling mechanism and the grease chamber.
It is provided with the piston rod 19 that acts on clamping element, and the piston 20 on the piston rod is slidingly matched with the grease chamber, front and back.As shown in Figure 5, the head of piston rod 19 is provided with the draw-in groove 21 of clamping element, and takes this clamping element is pushed away forward and pulls back.
It is provided with the mount pad 22 of clamping element.As shown in Figure 6, mount pad 22 is provided with the gathering sill 23 of clamping element.
When being in the clamping duty, changement 5 is turned to oil circuit 105 be communicated with grease chamber 3, back and path 102, at this moment, oil circuit 103 is communicated with preceding grease chamber 2, and the path 106 of changement 5 is communicated with way to cycle oil 101.By rotating operation cover 14, especially conveniently be that positive and negative rotation is all right, make oiling piston 8 under the effect of the screen resilience of the compressing of boss 15 and spring 13, move back and forth, hydraulic oil in the oil sump 1 is passed through check valve 6 successively, check valve 7, cannelure 17, path 102, oil circuit 105, path 107 enters grease chamber 3, back, meanwhile, hydraulic oil pressurized in the preceding grease chamber 2, from path 108, path 103, path 106, way to cycle oil 101 flows into oil sump 1, thereby promoting piston rod 19 moves ahead, and clamping element is also and then moved ahead, and and at the same time, clamping tool gradually under the acting in conjunction of the draw-in groove 21 of the gathering sill 23 of mount pad 22 and piston rod 19.
When being in when loosening duty, changement 5 is turned to oil circuit 105 be communicated with preceding grease chamber 2 and path 102, at this moment, oil circuit 104 is communicated with grease chamber 3, back, and the path 106 of changement 5 is communicated with way to cycle oil 101.By rotating operation cover 14, make oiling piston 8 under the effect of the screen resilience of the compressing of boss 15 and spring 13, move back and forth, hydraulic oil in the oil sump 1 is entered preceding grease chamber 2 through check valve 6, check valve 7, cannelure 17, path 102, oil circuit 105, path 108 successively, meanwhile, hydraulic oil pressurized in the back grease chamber 3, go into oil sump 1 from oil circuit 107, oil circuit 104, path 106, way to cycle oil 101, thereby promoting piston rod 19 retreats, and clamping element is also and then retreated, loosen instrument gradually.
Claims (7)
1. hydraulic drill chuck, it comprises the clamping element of instrument, preceding grease chamber and the grease chamber, back that clamping element is clamped or loosen, it is characterized in that described hydraulic drill chuck also is provided with the oiling mechanism and the way to cycle oil of oil sump, preceding grease chamber and grease chamber, back, it also is provided with described oiling mechanism and way to cycle oil is communicated with the changement that switches with forward and backward grease chamber.
2. a kind of hydraulic drill chuck as claimed in claim 1 is characterized in that described oiling mechanism comprises check valve that is communicated with oil sump and the check valve that is communicated with changement, is provided with the oiling piston between above-mentioned two check valves.
3. a kind of hydraulic drill chuck as claimed in claim 2 is characterized in that oil sump around collet body, is provided with several oiling mechanisms around collet body.
4. a kind of hydraulic drill chuck as claimed in claim 3, the oiling piston radial that it is characterized in that oiling mechanism be provided with and with the piston hole sliding-contact, it also is provided with the operating sleeve of oiling piston, the inwall of operating sleeve is provided with the boss that cooperates with piston.
5. a kind of hydraulic drill chuck as claimed in claim 1 is characterized in that changement is a rotating valve, and it is provided with path between oiling mechanism and the forward and backward grease chamber and the path between way to cycle oil and the forward and backward grease chamber.
6. a kind of hydraulic drill chuck as claimed in claim 1 is characterized in that it is provided with the piston rod that acts on clamping element, and the piston on the piston rod cooperates with forward and backward grease chamber.
7. a kind of hydraulic drill chuck as claimed in claim 1 is characterized in that it is provided with the mount pad of clamping element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100928168A CN100386169C (en) | 2004-11-15 | 2004-11-15 | Hydraulic drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100928168A CN100386169C (en) | 2004-11-15 | 2004-11-15 | Hydraulic drill chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1676254A CN1676254A (en) | 2005-10-05 |
| CN100386169C true CN100386169C (en) | 2008-05-07 |
Family
ID=35049089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100928168A Expired - Fee Related CN100386169C (en) | 2004-11-15 | 2004-11-15 | Hydraulic drill chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100386169C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104249258B (en) * | 2013-06-28 | 2016-12-28 | 上海宏功机械科技有限公司 | A kind of cutter hydraulic machinery clamping head and automatic hydraulic tool changing device |
| CN110977511A (en) * | 2019-12-12 | 2020-04-10 | 广州泽威金属机械有限公司 | Drill bit tightening device of drilling machine |
| CN111390215A (en) * | 2020-05-12 | 2020-07-10 | 济宁捷合机械有限公司 | Hydraulic clamping drill chuck |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB962609A (en) * | 1961-09-26 | 1964-07-01 | Pratt Prec Hydraulics Ltd | An improved method and apparatus for operating a pressurised fluid actuated chuck |
| CN2319156Y (en) * | 1997-12-10 | 1999-05-19 | 胡祥生 | One-way push key fastening device of hydraulic chuck |
| JPH11300511A (en) * | 1998-04-27 | 1999-11-02 | Nissan Motor Co Ltd | Chucking device |
| CN1245453A (en) * | 1997-01-28 | 2000-02-23 | Etp传动股份公司 | Hydromechanical chuck |
| US6668859B1 (en) * | 2002-10-21 | 2003-12-30 | Hsuan-Lung Wu | Hydraulic collet assembly with a valve unit |
-
2004
- 2004-11-15 CN CNB2004100928168A patent/CN100386169C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB962609A (en) * | 1961-09-26 | 1964-07-01 | Pratt Prec Hydraulics Ltd | An improved method and apparatus for operating a pressurised fluid actuated chuck |
| CN1245453A (en) * | 1997-01-28 | 2000-02-23 | Etp传动股份公司 | Hydromechanical chuck |
| CN2319156Y (en) * | 1997-12-10 | 1999-05-19 | 胡祥生 | One-way push key fastening device of hydraulic chuck |
| JPH11300511A (en) * | 1998-04-27 | 1999-11-02 | Nissan Motor Co Ltd | Chucking device |
| US6668859B1 (en) * | 2002-10-21 | 2003-12-30 | Hsuan-Lung Wu | Hydraulic collet assembly with a valve unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1676254A (en) | 2005-10-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080507 Termination date: 20131115 |