CN200995287Y - Drill gripping head against over-tightening - Google Patents
Drill gripping head against over-tightening Download PDFInfo
- Publication number
- CN200995287Y CN200995287Y CN 200720105376 CN200720105376U CN200995287Y CN 200995287 Y CN200995287 Y CN 200995287Y CN 200720105376 CN200720105376 CN 200720105376 CN 200720105376 U CN200720105376 U CN 200720105376U CN 200995287 Y CN200995287 Y CN 200995287Y
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- CN
- China
- Prior art keywords
- spring
- drill chuck
- face
- adapter sleeve
- tooth
- 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
A novel drill chuck of anti-tight comprises a connecting body connected coordinately with the drive mechanism. The utility model is characterized in that the drill chuck is equipped with a chuck body surrounding the connecting body, the chuck body is equipped with gripping jaw slots distributed evenly along the circumference, and the gripping jaw slots are equipped with the gripping jaw connected to the front end of the connection part in reverse thread. The drill chuck is also equipped with a connecting sleeve surrounding the connecting body and connecting to the back end of the chuck body. The connecting body is equipped with a boss for axial positioning of the chuck body and the connecting sleeve, and tooth is arranged on the back end surface of the boss. A spring seat is arranged between the connecting sleeve and the boss, and tooth coordinating with the tooth at the back end surface of the boss is arranged on the end surface of the spring seat facing the boss. A spring is arranged between the spring seat and the connecting sleeve for avoiding the excessive relative rotation of the spring seat and the connecting sleeve on the tight direction during the operation of the drill chuck. The end surface of the spring seat facing the back sleeve is equipped with tooth, and the back sleeve is equipped with the spring piece coordinated with the tooth.
Description
Technical field
The utility model relates to a kind of drill chuck, relates in particular to a kind of for example drill chuck on the drilling machine of machining equipment and electric tool that is installed in.
Background technology
In the prior art, the screw rod that keyless drill chuck is provided with the connector that is connected with driving device, protheca, jaw, is connected with connector and jaw.The operation drill chuck makes relatively rotating of collet body and connector, thereby the motion by screw rod drives jaw the advance and retreat clamping or the drilling tool that gets loose in the skewed slot of collet body.This drill chuck has higher clamping reliability, but when forward is worked, because protheca relatively rotates with connector on the direction screwing, makes jaw too clamp drill bit, and is very difficult in the time of can causing being difficult to get loose operation.
Summary of the invention
Technical problem to be solved in the utility model provides the get loose new-type drill chuck of easy to operate anti-tension of a kind of reliable clamping.For this reason, the utility model is by the following technical solutions: it comprises the connector that is connected with driving mechanism, described drill chuck is provided with and is centered around the outer collet body of connector, collet body is provided with along the circumferential direction uniform jaw groove, be provided with jaw in the jaw groove, jaw is connected with connector front end reverse thread, described drill chuck also is provided with and is centered around the outer adapter sleeve that is connected with the collet body rear end of connector, described connector is provided with the boss to collet body and adapter sleeve axial location, described boss rear end face is provided with tooth, be provided with spring base between adapter sleeve and the described boss, seat surface is provided with the tooth that cooperates with tooth on the boss rear end face to the end face of boss, be provided with between spring base and the adapter sleeve when drill chuck is worked, screwing and prevent spring base and adapter sleeve spring excessively in relative rotation on the direction, described seat surface is provided with tooth to the end face of back cover, is arranged with the spring leaf that cooperates with tooth after described.Owing to adopt the technical solution of the utility model, the utility model is simple in structure, and, when the drill chuck forward is worked, described spring can prevent owing to excessively relatively rotating too clamping tool of the jaw that causes screwing direction upper grip body and adapter sleeve and connector, guarantee the reliable of clamping and get loose easy to operate, and, the cooperation of described spring leaf and tooth can be played in the clamping tool process and send the prompt tone of rattling away, make the operator experience the mechanical movement of drill chuck inside intuitively, be convenient to operation and control, prevent that too quickly torsion input from damaging drill chuck drill chuck.
Description of drawings
Fig. 1 partly cuts open schematic diagram for a kind of embodiment of the utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the explosive view of Fig. 1.
Fig. 4 is one of graphics of the spring base in embodiment illustrated in fig. 1.
Fig. 5 be the spring base in embodiment illustrated in fig. 1 graphics two.
Fig. 6 partly cuts open graphics for the adapter sleeve in embodiment illustrated in fig. 1.
The specific embodiment
With reference to accompanying drawing, the utility model comprises the connector 3 that is connected with driving mechanism, described drill chuck is provided with and is centered around the outer collet body 1 of connector, collet body is provided with along the circumferential direction uniform jaw groove 11, be provided with jaw 2 in the jaw groove, jaw is connected with connector front end 31 reverse threads, described drill chuck also is provided with and is centered around the outer adapter sleeve 4 that is connected with the collet body rear end of connector, described connector is provided with the boss 33 to collet body and adapter sleeve axial location, described boss rear end face is provided with tooth 201, be provided with spring base 6 between adapter sleeve and the described boss, seat surface is provided with the tooth 62 that cooperates with tooth on the boss rear end face to the end face of boss, be provided with between spring base and the adapter sleeve when drill chuck is worked, screwing and prevent spring base and adapter sleeve spring 9 excessively in relative rotation on the direction, described seat surface is provided with tooth 63 to the end face of back cover, is arranged with the spring leaf 10 that cooperates with tooth after described.
Described tooth 63 can be to distribute along spring base circumference total length, also can be only to be in one section sector region of spring base, and in the installing hole 42 that puts after described spring leaf 10 is located at, it terminal 100 cooperates with tooth 63.When the drill chuck clamping tool, the end of spring leaf 10 100 slips between cog, sends the prompt tone of rattling away.In addition, also can be that spring leaf 10 is located on the end face of spring base to the back cover, put after tooth 63 is located at, but installation and design of part do not have present embodiment simple.
In the present embodiment, collet body and adapter sleeve adopt and are threaded.Jaw groove 11 directly is opened in the collet body, and it can be with collet body machine-shaping and installation.As shown in the figure, totally 3 of jaws, jaw groove 11 is obliquely installed and evenly is provided with along the collet body circumferencial direction.In the utility model, the described direction that screws is to instigate the jaw motion with the collet body of clamping tool and the direction of relative movement of adapter sleeve and connector.Because when clamping tool and when carrying out work, connector can be subjected to power backward, make the rear end face of boss and described rear end face the gap between the right adapter sleeve end face reduce, the utility model utilizes this characteristics, at drill chuck not during clamping tool, the rear end face of boss and gap between the spring base make cooperating between tooth 201 and the tooth 62 can not hinder collet body and adapter sleeve and connector and relatively rotate, when the drill chuck clamping tool carries out work, connector is subjected to power backward, the rear end face of boss and the gap between the spring base reduce, engagement between tooth 201 and the tooth 62, when screwing direction upper grip body and adapter sleeve and connector and relatively rotating, spring base 6 is driven and is relatively rotated with adapter sleeve, spring 9 is compressed or stretches, the elastic force of spring plays obstruction collet body and adapter sleeve and connector and acts in relative rotation, prevents that collet body and adapter sleeve and connector from excessively relatively rotating, and play the effect of power-assisted in the tool operation that gets loose.
Described seat surface is provided with spring groove 61 to the end face of adapter sleeve, and adapter sleeve is provided with the spring groove 41 that cooperates with spring groove on the spring base towards the end face of spring base, and described spring is located in spring groove 61 and 41.
The utility model is provided with elastic washer between the rear end face of described collet body and described collet body rear end face institute are to the adapter sleeve end face.Like this, make that the operation of drill chuck is more flexible in the operating process that clamps drill bit.In the present embodiment, elastic washer the rear end face of described collet body and described collet body rear end face be to be between the rear end face and spring base 6 of collet body the position between the adapter sleeve end face, described elastic washer adopts wave-shaped ring 5 in the present embodiment.In addition, described elastic washer also can be arranged on the rear end face of boss and described rear end face between the right adapter sleeve end face.
In order to make drill chuck more convenient to operate, the rear end of described drill chuck is provided with fixed cover 7.Drawing reference numeral 8 is a collar.
Described spring 9 also can extension spring.It is provided with structure: be provided with spring groove at adapter sleeve on the end face of spring base, described spring is located in the spring groove, and an end of described spring is connected with spring base, and the other end is connected with adapter sleeve.
Claims (6)
1, a kind of new-type drill chuck of anti-tension, comprise the connector that is connected with driving mechanism, it is characterized in that described drill chuck is provided with the collet body that is centered around outside the connector, collet body is provided with along the circumferential direction uniform jaw groove, be provided with jaw in the jaw groove, jaw is connected with connector front end reverse thread, described drill chuck also is provided with and is centered around the outer adapter sleeve that is connected with the collet body rear end of connector, described connector is provided with the boss to collet body and adapter sleeve axial location, described boss rear end face is provided with tooth, be provided with spring base between adapter sleeve and the described boss, seat surface is provided with the tooth that cooperates with tooth on the boss rear end face to the end face of boss, be provided with between spring base and the adapter sleeve when drill chuck is worked, screwing and prevent spring base and adapter sleeve spring excessively in relative rotation on the direction, described seat surface is provided with tooth to the end face of back cover, is arranged with the spring leaf that cooperates with tooth after described.
2, the new-type drill chuck of a kind of anti-tension as claimed in claim 1, it is characterized in that described seat surface is provided with spring groove to the end face of adapter sleeve, adapter sleeve is provided with the spring groove that cooperates with spring groove on the spring base towards the end face of spring base, and described spring is located in the spring groove.
3, the new-type drill chuck of a kind of anti-tension as claimed in claim 1 is characterized in that adapter sleeve is provided with spring groove towards the end face of spring base, and described spring is located in the spring groove, and an end of described spring is connected with spring base, and the other end is connected with adapter sleeve.
4,, it is characterized in that described drill chuck is provided with elastic washer between the rear end face of described collet body and described collet body rear end face institute are to the adapter sleeve end face as the new-type drill chuck of claim 1,2 or 3 described a kind of anti-tensions.
5, the new-type drill chuck of a kind of anti-tension as claimed in claim 4 is characterized in that described elastic washer is a wave-shaped ring.
6, as the new-type drill chuck of claim 1,2 or 3 described a kind of anti-tensions, it is characterized in that the rear end of described drill chuck is provided with fixed cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720105376 CN200995287Y (en) | 2007-01-05 | 2007-01-05 | Drill gripping head against over-tightening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720105376 CN200995287Y (en) | 2007-01-05 | 2007-01-05 | Drill gripping head against over-tightening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200995287Y true CN200995287Y (en) | 2007-12-26 |
Family
ID=38993710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720105376 Expired - Fee Related CN200995287Y (en) | 2007-01-05 | 2007-01-05 | Drill gripping head against over-tightening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200995287Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107322057A (en) * | 2017-07-24 | 2017-11-07 | 浙江三鸥机械股份有限公司 | A kind of hand fastening drill clutch |
-
2007
- 2007-01-05 CN CN 200720105376 patent/CN200995287Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107322057A (en) * | 2017-07-24 | 2017-11-07 | 浙江三鸥机械股份有限公司 | A kind of hand fastening drill clutch |
| CN107322057B (en) * | 2017-07-24 | 2023-09-15 | 浙江三鸥机械股份有限公司 | Hand-tightening drill chuck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |