CN201664767U - Gun drill suspended type drill chuck with wrench handle connected externally - Google Patents
Gun drill suspended type drill chuck with wrench handle connected externally Download PDFInfo
- Publication number
- CN201664767U CN201664767U CN2009202665748U CN200920266574U CN201664767U CN 201664767 U CN201664767 U CN 201664767U CN 2009202665748 U CN2009202665748 U CN 2009202665748U CN 200920266574 U CN200920266574 U CN 200920266574U CN 201664767 U CN201664767 U CN 201664767U
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- CN
- China
- Prior art keywords
- drill
- collet body
- chuck
- drill chuck
- tubulose
- 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 relates to a gun drill handheld type drill chuck, in particular to a gun drill suspended type drill chuck with a wrench handle connected externally, which comprises a chuck head body, a clamp pin, an internal tapered nut, a front shell, a rear shell and a fixing ring. The clamp pin is inserted in the chuck head body, the internal tapered nut, the front shell, the rear shell and the fixing ring are matched with the upper part of the clamp pin through threads, a central hole of the chuck head body extends backwards along a tubular hole wall to form a tubular convex part, and the convex part can be suspended on a gun drill conversion device. The rear end of the convex part is provided with a cross-shaped gap which is matched with a cross-shaped convex key on a gun drill spindle, so that the gun drill spindle can drive the drill chuck to rotate. The gun drill suspended type drill chuck is characterized in that the rear shell is combined with two tubular parts on the rear part of the chuck head body to form an anti-rotating mechanism and a locking mechanism, wherein the anti-rotating mechanism is positioned and guided by a steel ball, so that the rear shell can drive the chuck head body to rotate simultaneously when being twisted by hand or can carry out linear movement relative to the chuck head body when being pushed. Therefore, the anti-rotating mechanism has the advantages of simple process, convenient manufacture, low cost and reliable use. The locking mechanism can be replaced by two smaller steel balls, so that the drill chuck can be replaced more conveniently and rapidly.
Description
Technical field
The utility model relates to a kind of hand-held drill gun drill chuck.Especially one and kept the original clamping drill bit of drill chuck function, other has a kind of drill chuck that can be installed to the function on the drill gun on the drill chuck exchange apparatus again at any time easily that is suspended on.Special still be connected firmly with the drill gun main shaft and can with the convenient drill gun chuck of throwing off of drill gun main shaft.
Background technology
Existing drill gun drill chuck can only be fixed on single use on the main shaft of drill gun, and not having to satisfy can be for being suspended on the drill chuck exchange apparatus so that the requirement of transposing drilling tool to be provided as required.Therefore every transposing drill bit must be dismantled and clamping again, results in hand cramps to operation.Even when work high above the ground,, the transposing drill bit leads to a disaster owing to falling down accidentally and with drill bit.People attempt to design and a kind ofly can hang the drill chuck that clips drill bit more than two on a drill gun, can select of any appropriate to be installed on the main shaft of drill gun, and can make things convenient for rotation to be hung with the drill gun of the drill chuck exchange apparatus of two above drill chucks at any time with the transposing drill chuck.Designing the problem that such drill gun at first will solve is to design successfully a kind of drill chuck that is suspended on the drill chuck exchange apparatus.Can provide so just that the user selects, rotary drilling chuck exchange apparatus, and then the drill chuck that this is being hung, be fit to is installed on the drill gun.The applicant has design to drill gun drill chuck exchange apparatus and the drill chuck with above performance, and has applied for patent.But also there is further perfect place in former scheme.As defectives such as locking mechanism, rotation-preventing mechanism, cost height.
Summary of the invention
The purpose of the utility model is to disclose a kind of original clamping drill bit of drill chuck function that both kept to society, can be suspended on the drill chuck exchange apparatus again, especially rotation-preventing mechanism and its structure of locking mechanism are more reasonable, technology is more simple, uses more convenient drill chuck.
It is such that the utility model solves the technical scheme that above technical problem takes:
A kind of drill gun band handle drill chuck comprises that the front portion is provided with the collet body of three inclined holes, rear portion band medium pore, inserts three pinches in anterior three inclined holes of collet body, with the interior flare nut of pinch top threaded engagement, and cover people collet body rear portion; With the tight cover of interior flare nut and interior flare nut is embedded in procapsid in the groove of collet body, the retainer plate of the back casing at procapsid rear portion and back casing back; The medium pore of collet body extends back into the protuberance of tubulose along the tubulose hole wall, and the rear portion that tubulose is vacated portion is provided with Wai Kequan.The rear end of described tubulose protuberance is provided with " ten " font breach, should " ten " font breach matches with the protruding key of " ten " font on the drill gun main shaft; Rotation-preventing mechanism and locking mechanism that the two suit combination back of described back casing and tubulose protuberance is formed.
The inner hole sleeve of back casing is contained in collet body rear tubular external diameter, be shaped on the semicircle elongated slot on this endoporus wall, with be shaped on counterbore on the external diameter of the corresponding collet body rear tubular of semicircle elongated slot, be placed with steel ball in the counterbore, partly expose at external diameter surface and active mounting in the semicircle elongated slot, rotate back casing with the manually alternative motor-driven drill bit that clamps; Also be shaped on the arc step that misplaces mutually with the semicircle elongated slot on the back casing endoporus wall, the through hole that is interlinked to the outside in its corresponding collet body rear tubular of this arc step place is shaped on, each is placed with two steel balls this through hole, floods when steel ball is revealed when tubulose endoporus wall to reach drill chuck and lock on the drill gun main shaft or separate; Back casing endoporus front end is placed with spring, make back casing after passing from horizontal reset.
The technical measures of optimizing also comprise:
The endoporus of above-mentioned back casing is shaped on the semicircle elongated slot, is embedded with shared part steel ball in the semicircle elongated slot; With also be shaped on the arc step on the endoporus wall that the semicircle elongated slot misplaces mutually, flood when revealing when the arc step can push continuous steel ball.
Above-mentioned collet body front portion is shaped on three inclined holes, the external diameter of rear tubular is shaped on the inside and outside circular hole that connects, the outer footpath of Circularhole diameter is partly greater than the diameter of steel ball, near the diameter of the circular hole at one section at the inwall place of the tubulose diameter less than steel ball, places two steel balls in this circular hole.
The tubular surface at above-mentioned collet body rear portion is shaped on counterbore, is placed with steel ball in the counterbore and partly exposes in tubular surface and be inlaid in the semicircle elongated slot.
The not outer gram circle in the rear portion of above-mentioned tubulose protuberance helps to be suspended on the drilling tool conversion equipment of drill gun, the rear end of tubulose protuberance also has " ten " font breach, should " ten " font breach matches with the protruding key of " ten " font on the drill gun main shaft.
Owing to adopt abovementioned technology, its advantage is compared with prior art: because of the steel ball that has adopted than former steel ball diameter half as large, two combinations are laid in employing makes the operator when dress changes drill chuck, and hand moves the compression of drill chuck back casing can be half as large, and sensation can be more convenient, more laborsaving; But do not influence drill chuck reliability of fixation on the drill gun main shaft, besides can be convenient to the integral body arrangement of drill chuck structure, owing to adopt abovementioned technology back casing and locking cover to fuse, can adopt the compacting drawing and forming, need not be in collet body rear portion milling plane or groove milling, therefore technology is simple, and cost is also low.
Description of drawings
Fig. 1 is the utility model embodiment overall structure schematic diagram;
The schematic diagram that Fig. 2 can match with " ten " font breach of the utility model embodiment drill chuck tubulose protuberance rear end for " ten " font groove on the drill gun main shaft and the anterior arc groove of main shaft can cooperate with the locking mechanism on the drill chuck;
Fig. 3 is Figure 1A-A profile;
Fig. 4 is Figure 1B-B profile.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Structure of the present utility model is seen Fig. 1 to shown in Figure 4, illustration: pinch 1, collet body 2, counterbore 201, circular hole 202, " ten " font breach 21, tubulose protuberance 22, interior flare nut 3, procapsid 4, back casing 5, semicircle elongated slot 501, arc step 502, spring 6, steel ball 7, retainer plate 8, wear-resistant gasket 9, wear-resistant gasket 10, outer gram circle 11, steel ball 12.
Embodiment connects drill chuck (Fig. 1) outward for suspension type spanner band handle.Suspension type spanner band handle connects drill chuck outward and wear handle behind collet body.Collet body 2 front portions are provided with three inclined holes, rear portion band medium pore.Three pinches 1 insert in anterior three inclined holes of collet body.With pinch top threaded engagement be interior flare nut 3.Be inserted in collet body 2 rear portions, with interior flare nut 3 tight covers and interior flare nut is embedded in procapsid 4 in the groove of collet body 2.The procapsid rear portion is a back casing 5.Back casing back same enclosed 8 surely back casing blocked.The medium pore of collet body 2 extends back into the protuberance 22 of tubulose along the tubulose hole wall, and the rear portion of tubulose protuberance 22 is provided with outer gram circle 11, and its front also has wear-resistant gasket 9,10.The rear end of tubulose protuberance 22 is provided with " ten " font breach 21, should " ten " font breach matches with the protruding key of " ten " font on the drill gun main shaft.Also be not equipped with the locking mechanism that cooperates with arc groove on the main shaft in the back casing, it is characterized in that, the steel ball 12 every holes that are used in the locking mechanism locking are laid two.
The described locking mechanism that cooperates with arc groove on the main shaft comprises, cover people collet body rear portion, a crown are at the coil tension spring 6 (Fig. 1) of back casing nose end, cover people collet body rear portion and the back casing 5 of collet body to live and to cooperate are shaped on the arc step 502 (Fig. 1, Fig. 3) that misplaces mutually with semicircle elongated slot 501 in the back cover body opening; Collet body 2 rear tubular walls are shaped on several uniform circular holes and are arranged on the steel ball 12 that cooperates with circular hole in the circular hole.The circular hole of not putting on the collet body rear tubular wall 202 is the torus that shrink to the collet body inwall from the collet body outer wall, the diameter of the circular hole at the outer wall place of collet body 2 rear tubular is greater than the diameter of steel ball 12, near the diameter at one section at the inwall place at the collet body rear portion diameter less than steel ball.So, make steel ball 12 put into or to squeeze back, protrude at the inwall place of collet body from the outer wall of collet body.When protrude at collet body inwall place, be stuck in the arc groove of drill gun main shaft drill chuck is fixed on the main shaft.
The described rotation-preventing mechanism that cooperates with collet body 2 comprises, the back casing that is inserted in the collet body rear portion contacts with collet body on the inner hole wall that cooperates and is shaped on several uniform semicircle elongated slots 501, there is counterbore 201 on the collet body surface relative at elongated slot, half places steel ball 7 in the hole, second half exposes with the semicircle elongated slot is alive and cooperates, when back casing twisted with hand, collet body 2 can be driven simultaneously.
Leave big gap between outer gram circle 11 and back casing end face, wear-resistant gasket 10,9 is arranged between the gap, this gap is the position that the drill gun runing rest is installed.
Prepare to be contained in when hanging in the corresponding hole when connecting drill chuck outside the spanner, to restrain circle 11 earlier outward pulls down, take down putting aside simultaneously, insert in the corresponding suppending hole of drill chuck exchange apparatus (not drawing) at the rear portion that at this moment suspension type spanner band handle is connected drill chuck outward, outer gram circle 11 is loaded onto blocked then.
When connecting drill chuck outside the suspension type spanner band handle and pack on the drill gun, with second-hand sensing external compression back casing 5, the drill gun main shaft gives prominence to steel ball 12 extruding at outer tubular wall (Fig. 1), when steel ball 12 moves only in the arc groove of drill gun main shaft front portion, under the effect of spring 6, force back casing 5 to move in the opposite direction, force steel ball to be squeezed in the arc groove, so drill chuck firmly is connected on the drill gun.Equally, when need transposing drill chuck, as long as back casing 5 is pushed away forward, at this moment, because steel ball 12 can slide to drill chuck outer wall place.Steel ball 12 does not exist at the ledge at drill chuck inwall place, and drill chuck and drill gun can easily break away from.It below promptly is the effect of locking mechanism.
Claims (5)
1. a drill gun suspension type spanner band handle connects drill chuck outward, comprise, the front portion is provided with the collet body (2) of three inclined holes, rear portion band medium pore, insert three pinches (1) in anterior three inclined holes of collet body, interior flare nut (3) with pinch top threaded engagement, be inserted in collet body (2) rear portion, interior flare nut (3) is tightly overlapped and interior flare nut be embedded in the procapsid (4) in the groove of collet body (2), the retainer plate (8) of back casing at procapsid rear portion (5) and back casing back; The medium pore of collet body (2) extends back into the protuberance (22) of tubulose along the tubulose hole wall, and the rear portion of tubulose protuberance (22) is provided with Wai Kequan (11); The rear end of described tubulose protuberance (22) is provided with " ten " font breach (21), should " ten " font breach match, it is characterized in that the two suit of described back casing and tubulose protuberance makes up rotation-preventing mechanism and the locking mechanism of then being formed with the protruding key of " ten " font on the drill gun main shaft.
2. drill gun suspension type spanner band handle according to claim 1 connects drill chuck outward, it is characterized in that, the rotation-preventing mechanism that is provided with between the protuberance (22) of described back casing (5) and tubulose comprises, is shaped on the counterbore (201) of semicircle elongated slot (501) and tubular surface in the back cover body opening and is placed on steel ball in the hole (7).
3. drill gun suspension type spanner band handle according to claim 1 connects drill chuck outward, it is characterized in that, the locking mechanism that is provided with between the protuberance (22) of described back casing (5) and tubulose comprises, be provided with the arc step (502) of elongated slot (501) mutual dislocation in the back cover body opening and be arranged on steel ball (12) in the circular hole (202), placement is two every hole in.
4. drill gun suspension type spanner band handle according to claim 1 connects drill chuck outward, it is characterized in that, it is the symmetrical arc ring body that shrinks to the collet body inwall from the collet body outer wall that described collet body (2) is gone up the circular hole (202) that is provided with, the diameter of the circular hole at the outer wall place of collet body (2) rear tubular is greater than the diameter of steel ball (12), near the diameter of the circular hole at one section at the inwall place of collet body (2) the rear tubular diameter less than steel ball.
5. drill gun suspension type spanner band handle according to claim 1 connects drill chuck outward, it is characterized in that, is provided with Wai Kequan (11) behind the protuberance (22) of collet body (2) rear tubular, and Wai Kequan (11) is gapped with back casing (5) end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202665748U CN201664767U (en) | 2009-11-11 | 2009-11-11 | Gun drill suspended type drill chuck with wrench handle connected externally |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202665748U CN201664767U (en) | 2009-11-11 | 2009-11-11 | Gun drill suspended type drill chuck with wrench handle connected externally |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201664767U true CN201664767U (en) | 2010-12-08 |
Family
ID=43265721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202665748U Expired - Fee Related CN201664767U (en) | 2009-11-11 | 2009-11-11 | Gun drill suspended type drill chuck with wrench handle connected externally |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201664767U (en) |
-
2009
- 2009-11-11 CN CN2009202665748U patent/CN201664767U/en not_active Expired - Fee Related
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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: 20101208 Termination date: 20111111 |