CN2832375Y - Locking self-screwed drill chuck - Google Patents
Locking self-screwed drill chuck Download PDFInfo
- Publication number
- CN2832375Y CN2832375Y CN 200520015251 CN200520015251U CN2832375Y CN 2832375 Y CN2832375 Y CN 2832375Y CN 200520015251 CN200520015251 CN 200520015251 CN 200520015251 U CN200520015251 U CN 200520015251U CN 2832375 Y CN2832375 Y CN 2832375Y
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- CN
- China
- Prior art keywords
- locking
- lock
- drill chuck
- spring leaf
- drill
- 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 - Fee Related
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Abstract
The utility model provides a novel locking self-tightening drill chuck, which comprises an axially positioned drill body provided with a chuck jaw groove, a chuck jaw, a screw rod connected with the chuck jaw, a connecting body forming a screw-thread connection with the screw rod, and a front sleeve, wherein the surface of the connecting body is provided with a saw tooth ring, the drill body is provided with a pinhole corresponding to the position of the saw tooth ring, and the pinhole is provided with a movable locking member capable of matching with a saw-tooth unidirectional tooth lock. The utility model is also provided with a locking operating sleeve and an elastic element which are used for controlling the matching state of the locking member and the saw tooth ring. The utility model solves the self-locking problem of the drill chuck by locking and matching the connecting body with the drill body. Therefore, the utility model has the advantages of more simple structure and more convenient installation.
Description
Technical field
The utility model relates to a kind of keyless drill chuck, relates in particular to a kind of for example drill chuck on drilling machine, the machining center of machining equipment and precise machining equipment that is installed in.
Background technology
In the prior art, be provided with the drill body of the strap clamp pawl groove that axially is positioned in the keyless drill chuck, jaw, screw rod, the connector that is connected with screw flight, the protheca of the tape guide conical surface, with the fixing back cover of connector, three jaws are separately positioned in three jaw grooves that are distributed on the drill body and with screw rod and are connected together, adopt between screw rod and the connector and be threaded, taper hole and machine tool chief axis with connector during use fix, and make the screw rod rotation drive jaw to advance to clamp drilling tool under the guiding of the guiding conical surface of protheca and jaw groove thereby the main shaft axially-movable of lathe drives connector rotation synchronously.If will unclamp drilling tool, in the guiding conical surface of protheca, shrink back to unclamp drilling tool thereby then make the screw rod rotation drive jaw by cover drive connector rotation after the opposite spin.The shortcoming of this keyless drill chuck is: keyless drill chuck at work, lathe can't be worked on opposite direction if motion in the other direction then makes keyless drill chuck unclamp drilling tool automatically at all.It is the positive and negative both direction that keyless drill chuck can not work in lathe simultaneously.
For this reason, the hand fastening drill clutch of band auto-lock function is arranged at present, overcoming above-mentioned defective, but the structure more complicated is installed inconvenience, self-locking complicated operation, the convenience of influence operation.
Summary of the invention
Technical problem to be solved in the utility model provides always locking drill chuck of a kind of novel lock with auto-lock function that overcomes above-mentioned defective.For this reason, the utility model is by the following technical solutions: it comprises the drill body that axially is positioned and is provided with the jaw groove, jaw, the screw rod that is connected with jaw, the connector that is connected with screw flight, protheca, the surface of connector is provided with the sawtooth circle, drill body is provided with pin-and-hole corresponding to the position of sawtooth circle, be provided with the movable latch fitting that can cooperate with the unidirectional tooth lock of sawtooth in the pin-and-hole, it also is provided with the locking operation cover and the flexible member of control latch fitting and sawtooth circle mated condition.The utility model is by making the self-locking problem of lock fit solution drill chuck between connector and the drill body, and structure is more simple, and is also more convenient when mounted.
When drill chuck is in self-locking state, when relatively rotating direction by the direction that clamps drill bit between drill body and the connector, after movable latch fitting is by sawtooth jack-up, can rely on the elastic force of flexible member to reset, make between drill body and the connector and can't relatively rotate, to keep clamping drill bit by the direction that gets loose.Described movable latch fitting can adopt the removable pin with lock end.Described flexible member can adopt spring leaf, and the lock end of spring leaf compressing removable pin, the inwall of locking operation cover have the configuration with respect to the other end of lock end that acts on removable pin, and the inwall of locking operation cover also has the spatial accommodation of removable pin when retreating.Like this, structure is more simple, locks more reliable, also more convenient when mounted.
Description of drawings
Fig. 1 partly cuts open schematic diagram for a kind of embodiment's of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1 under self-locking state.
Fig. 3 is the A-A cutaway view of Fig. 1 under the non-self-locking state.
Fig. 4 is the B-B cutaway view of Fig. 1 under the non-self-locking state.
Fig. 5 is the figure that blows of Fig. 1.
Fig. 6 is a lock sleeve axonometric drawing embodiment illustrated in fig. 1.
The specific embodiment
With reference to accompanying drawing.The utility model comprises the drill body 2 that axially is positioned and is provided with jaw groove 24, jaw 7, the screw rod 8 that is connected with jaw, the connector 1 that is connected with screw flight, protheca 9, the surface of connector is provided with sawtooth circle 11, drill body is provided with pin-and-hole 21 corresponding to the position of sawtooth circle, be provided with the movable latch fitting 3 that can cooperate with the unidirectional tooth lock of sawtooth in the pin-and-hole, it also is provided with the locking operation cover 4 and the flexible member 5 of control latch fitting and sawtooth circle mated condition.
Shown in Fig. 1,4, drawing reference numeral 71 is the draw-in groove on the jaw, and screw rod 8 is provided with the draw-in groove 81 that matches, and by the cooperation between the draw-in groove, jaw and screw rod is connected to together.The connector middle part is provided with outstanding step 12, and the gland of drawing reference numeral 25 for being threaded with the drill body rear end by the cooperation of gland and step, is axially located drill body.Drawing reference numeral 10 is the back cover that is fixed together with connector.Drawing reference numeral 91 is the guiding conical surface of protheca.
Sawtooth circle 11 can be the circle sawtooth of direct forming on the connector surface, also sawtooth circle 11 can be made part earlier, is installed in the connector surface by modes such as interference fit then.Shown in Fig. 1,4, the sawtooth circle can be located at the surface of connector middle bench 12, like this, the integral layout of part and the cooperation of part is brought bigger convenience.
Described movable latch fitting can adopt the removable pin 3 with lock end 31, and it can slide in pin-and-hole, realizes cooperating or throwing off with the sawtooth circle with the unidirectional tooth lock of sawtooth circle with this.
Promote in order to be convenient to the removable pin operating sleeve that is locked better, the other end 32 of removable pin 3 is for round end or have the guiding circular arc face.
Described flexible member can adopt spring leaf, and spring leaf acts on described movable latch fitting.
Spring leaf is connected on the drill body, and is between locking operation cover and the drill body.Spring leaf is hooked in the groove 26 of drill body as shown in Figure 2, and the drill body surface also is provided with the arc groove 22 of depression, and spring leaf is placed in the arc groove 22.
The lock end 31 of spring leaf compressing removable pin, as shown in Figure 2, the effect end 51 of spring leaf is pressed on the lock end 31 of removable pin, the inwall of locking operation cover has the configuration 43 with respect to the other end of lock end that acts on removable pin, and the inwall of locking operation cover also has the spatial accommodation 41 of removable pin when retreating.The space of giving up the throne of drawing reference numeral 44 spring leaf effect end during for non-locking state.Drawing reference numeral 6 is that 4 axial location parts are overlapped in the locking operation that is connected with drill body.
The drill body surface is provided with the rotary stopper groove 23 of locking operation cover, and locking operation cover inwall is provided with the key 42 that matches, so that locking operation, and locking mechanism is shielded.
During use, when being in non-self-locking state, the configuration 43 of locking operation cover inwall acts on the tail end 32 of removable pin 3, removable pin 3 is by jack-up, and the lock end 31 and the sawtooth circle 11 of removable pin 3 are in disengaged condition, when put into drilling tool in jaw after, after locking operation cover 4 is rotated counterclockwise certain angle, the transposition key 42 of locking operation cover is run into the back wall for leaning 421 of transposition groove 23, and the indication drill chuck has been in self-locking state, in case locking operation cover inordinate rotation damaged structure.As shown in Figure 2, at this moment, removed the effect of 43 pairs of removable pins 3 of configuration of locking operation cover inwall, contention effect because of 5 pairs of removable pins 3 of spring leaf, removable pin 3 retreats, the lock end 31 of removable pin 3 enters in sawtooth 11 grooves and with the unidirectional tooth lock of sawtooth and cooperates, and the tail end 32 of removable pin 3 falls in the spatial accommodation 41.Be rotated further the back cover, drive connector 1 and rotate, the lock end of removable pin 3 slips on the serrated slot surface, the another tooth of a tooth, and clamping force is increasing, until complete clamping tool.At this moment, because the contention effect of 5 pairs of removable pins 3 of spring leaf, the lock end 31 and the sawtooth of removable pin 3 is in unidirectional tooth lock mated condition, unless during power cut-off, the reverse rotation of operation locking operating sleeve, utilize the configuration 43 jack-up removable pins 3 of locking operation cover inwall, it is broken away from the unidirectional tooth of sawtooth lock mated condition, otherwise, even the lathe backward rotation, because the lock end of removable pin is withstood by sawtooth, can not relatively rotate between drill body and the connector, jaw remains the clamping to drill bit, thereby realizes self-locking, so keyless drill chuck can work in the positive and negative both direction of lathe simultaneously.
Claims (10)
1, novel lock locking drill chuck always, it comprises the drill body that axially is positioned and is provided with the jaw groove, jaw, the screw rod that is connected with jaw, the connector that is connected with screw flight, protheca, the surface that it is characterized in that connector is provided with the sawtooth circle, drill body is provided with pin-and-hole corresponding to the position of sawtooth circle, be provided with the movable latch fitting that can cooperate with the unidirectional tooth lock of sawtooth in the pin-and-hole, it also is provided with the locking operation cover and the flexible member of control latch fitting and sawtooth circle mated condition.
2, novel lock as claimed in claim 1 locking drill chuck always is characterized in that described movable latch fitting is the removable pin with lock end.
3, novel lock as claimed in claim 2 locking drill chuck always, the other end that it is characterized in that removable pin is round end or has the guiding circular arc face.
4, novel lock as claimed in claim 1 locking drill chuck always is characterized in that described flexible member is a spring leaf, and spring leaf acts on described movable latch fitting.
5, novel lock as claimed in claim 2 locking drill chuck always, it is characterized in that described flexible member is a spring leaf, the lock end of spring leaf compressing removable pin, the inwall of locking operation cover has the configuration with respect to the other end of lock end that acts on removable pin, and the inwall of locking operation cover also has the spatial accommodation of removable pin when retreating.
6, novel lock as claimed in claim 5 locking drill chuck always, the inwall that it is characterized in that the locking operation cover are also had a space of giving up the throne of abutting end of spring leaf and movable lock end.
7, as claim 4 or 5 described novel lock locking drill chuck always, it is characterized in that spring leaf is connected on the drill body, and be between locking operation cover and the drill body.
8, novel lock as claimed in claim 7 locking drill chuck always is characterized in that spring leaf is placed in the arc groove of drill body depression.
9, novel lock as claimed in claim 1 locking drill chuck always is characterized in that the drill body surface is provided with the rotary stopper groove of locking operation cover, and locking operation cover inwall is provided with the key that matches.
10, novel lock as claimed in claim 1 locking drill chuck always is characterized in that the sawtooth circle is located at the surface of connector middle bench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520015251 CN2832375Y (en) | 2005-09-27 | 2005-09-27 | Locking self-screwed drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520015251 CN2832375Y (en) | 2005-09-27 | 2005-09-27 | Locking self-screwed drill chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2832375Y true CN2832375Y (en) | 2006-11-01 |
Family
ID=37196691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520015251 Expired - Fee Related CN2832375Y (en) | 2005-09-27 | 2005-09-27 | Locking self-screwed drill chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2832375Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100564904C (en) * | 2008-02-05 | 2009-12-02 | 游友民 | Drill clamping chuck self-tightening screw nail and preparation method thereof |
| CN101327526B (en) * | 2007-06-18 | 2010-09-15 | 铨宝工业股份有限公司 | Anti-loose high-clamping force tool machine cutter holder chuck |
| WO2013071846A1 (en) * | 2011-11-18 | 2013-05-23 | 浙江三鸥机械股份有限公司 | Antilock self-tightening drill chuck |
| CN103212737A (en) * | 2013-04-18 | 2013-07-24 | 玉环胜友工具有限公司 | Connecting structure of shaft base and integrated guide base of self-clinching drill chuck |
| CN103212740A (en) * | 2013-04-18 | 2013-07-24 | 玉环胜友工具有限公司 | Shaft base of self-clinching drill chuck |
| CN103212739A (en) * | 2013-04-18 | 2013-07-24 | 玉环胜友工具有限公司 | Double main supporting type self-fastening drill chunk |
| CN103212738A (en) * | 2013-04-18 | 2013-07-24 | 玉环胜友工具有限公司 | Integrated guide assembly of self-clinching drill chuck |
-
2005
- 2005-09-27 CN CN 200520015251 patent/CN2832375Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101327526B (en) * | 2007-06-18 | 2010-09-15 | 铨宝工业股份有限公司 | Anti-loose high-clamping force tool machine cutter holder chuck |
| CN100564904C (en) * | 2008-02-05 | 2009-12-02 | 游友民 | Drill clamping chuck self-tightening screw nail and preparation method thereof |
| WO2013071846A1 (en) * | 2011-11-18 | 2013-05-23 | 浙江三鸥机械股份有限公司 | Antilock self-tightening drill chuck |
| CN103212737A (en) * | 2013-04-18 | 2013-07-24 | 玉环胜友工具有限公司 | Connecting structure of shaft base and integrated guide base of self-clinching drill chuck |
| CN103212740A (en) * | 2013-04-18 | 2013-07-24 | 玉环胜友工具有限公司 | Shaft base of self-clinching drill chuck |
| CN103212739A (en) * | 2013-04-18 | 2013-07-24 | 玉环胜友工具有限公司 | Double main supporting type self-fastening drill chunk |
| CN103212738A (en) * | 2013-04-18 | 2013-07-24 | 玉环胜友工具有限公司 | Integrated guide assembly of self-clinching drill chuck |
| WO2014169853A1 (en) * | 2013-04-18 | 2014-10-23 | You Yihua | Double-main supporting type self-tightening drill chuck |
| CN103212737B (en) * | 2013-04-18 | 2016-08-31 | 玉环胜友工具有限公司 | Keyless drill chuck axle bed and the attachment structure of integrated guide bearing |
| CN103212740B (en) * | 2013-04-18 | 2016-08-31 | 玉环胜友工具有限公司 | Keyless drill chuck axle bed |
| CN103212739B (en) * | 2013-04-18 | 2016-12-28 | 玉环胜友工具有限公司 | Double main supporting type self-fastening drill chunk |
| CN103212738B (en) * | 2013-04-18 | 2016-12-28 | 玉环胜友工具有限公司 | Keyless drill chuck monoblock type is held and is led assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20061101 Termination date: 20091027 |