CN2245510Y - Tool Chuck - Google Patents
Tool Chuck Download PDFInfo
- Publication number
- CN2245510Y CN2245510Y CN 95224176 CN95224176U CN2245510Y CN 2245510 Y CN2245510 Y CN 2245510Y CN 95224176 CN95224176 CN 95224176 CN 95224176 U CN95224176 U CN 95224176U CN 2245510 Y CN2245510 Y CN 2245510Y
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- China
- Prior art keywords
- jaw
- drive member
- hammer
- driving component
- central axis
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- 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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- 238000006073 displacement reaction Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
A tool holder comprising: the body is provided with a central axis, a plurality of inclined guide grooves and a plurality of clamping jaws which are respectively arranged in the plurality of guide grooves; a thread part arranged on the body; a driving member having a threaded inner hole engageable with the threaded portion and fitted over the threaded portion; the traction component can be driven by the driving component and can rotate relatively; the traction component is provided with a clamping jaw and a plurality of sliding chutes which are arranged at equal angles at intervals; the tail end of the clamping jaw can be clamped in the sliding groove in a sliding way; an outer sleeve is sleeved on the body in a rotating manner around the central axis and drives the driving member to rotate.
Description
The utility model relates to a kind of pusher hammer, but particularly a kind of pusher hammer of clamping throw.
Installing screwdriver, nut driver, drill, grinding stone or other machining tool on electronic or pneumatic boring bar tool, with the technology that working substance is processed, has been well known.But the handle of various machining tools all has different-diameter or is difform cross section, therefore once develops many chucks with broad adjusting range in located by prior art, with the various dissimilar instruments of clamping.
General electronic or pneumatic boring bar tool, what the most generally use is three-jaw chuck, this kind pawl chuck structure, comprise that mainly three are spaced with equal angles, and be the angle tilting jaw, and one around the nut that is sheathed on this some jaws periphery, these some jaws be provided with one row can with the intermeshing denture of this nut, when rotating this nut, can drive that jaw moves forward polymerization and pad is clamped, or withdraw from backward and loosen pad.
The technology emphasis of this kind three-jaw chuck is that it must make that the action of three jaws can be synchronous, pad is clamped on the central axis of this hammer guaranteeing.
Yet, because the denture of these three jaws is engaged on the internal thread trisection angle position of this nut, so when each jaw was driven by this nut, its position of moving can differ the distance of 1/3 pitch respectively, so that each jaw method is symmetrical in the central axis of chuck.
For eliminating the margin of error of jaw stroke, commonly using three jaw heads cooperates its journey error amount to be adjusted the position of the denture setting on each jaw, for example second jaw of a chuck can fall behind the distance that the 3rd jaw of first jaw 1/3 pitch falls behind 2/3 pitch, and then the position of the denture setting of second and the 3rd jaw then is offset the distance of 1/3 pitch and 2/3 pitch respectively along its y direction; So that first, second and third jaw can flushly walk abreast when driven by nut, and can reciprocally be symmetrical in the central axis of chuck.
The three-jaw chuck of commonly using is adjusted the position that its denture is provided with owing to must look each jaw journey error amount, so caused the difficulty in its manufacturing processing, and machining accuracy is wayward, and because the control of denture positional precision is difficult, just caused the positioning accuracy of this kind three-jaw chuck jaw not high, and made its clamping tools handle produce eccentric situation.
And, owing to the position of denture on three jaws is neither identical, when so it is produced, three jaws are not had interchangeability, and must use different production lines to be made, these three jaws must be arranged according to certain order and be installed on the body of this chuck during its assembling simultaneously, can reach the purpose of eliminating aforementioned journey error, therefore more increase the difficulty that it makes assembling.
Moreover the width of the nut on the jaw of this kind chuck is very limited, and simultaneously, the denture of each jaw also has only several teeth and the engagement of this nut, so its strength that can bear is very limited, and wrecks very easily.
Main purpose of the present utility model is to provide a kind of action accurate, the hammer that the margin of error is little.
Another purpose of the present utility model is to provide hammer a kind of easy to manufacture, easy to assembly.
Another purpose of the present utility model is to provide a kind of high strength that has, non-damageable hammer.
For reaching above-mentioned purpose, the utility model adopts following technological means:
A kind of hammer comprises:
One body, having a central axis, is threaded portion and several oblique guide grooves at center with this central axis, it is spaced apart with equal angles to be symmetrical in this central axis ground, and is arranged on the body obliquely;
Several jaws are mounted slidably respectively in described guide groove;
One drive member is sleeved on the described threaded portion threadably;
One driving component, with described drive member can combining by relative rotation mode, and driven by described drive member and produce displacement;
Aforementioned jaw tail end to be can combining along the mode that moves radially and the described driving component of described body, and makes it driven by this driving component and reciprocatingly slide along described guide groove;
One overcoat is sheathed on described body rotatably around described central axis, rotates to drive described drive member, and the linear reciprocation displacement.
Described hammer is characterized in that, described member and aforementioned jaw tail end composition surface be provided with the jaw equal number be equal angles at interval and along the chute of described body arranged radially, the tail end of jaw is sticked in respectively in each chute.
Described hammer is characterized in that, described overcoat madial wall has at least one vertical chute, and described drive member has several outward and snaps in projection in vertical chute.
Described hammer is characterized in that, is provided with a device in order to the frictional force that reduces by two contact-making surfaces between described drive member and the surface that driving component axially contacts.
Described hammer is characterized in that, the device of the described power of reducing friction is several balls.
Described hammer is characterized in that, the device of the described power of reducing friction is several needle rollers.
Described hammer is characterized in that, the end face that described drive member engages with jaw reaches described chute and several oblique guide grooves and is slightly vertical configuration.
Cooperate preferred embodiment and description of drawings as follows:
Description of drawings:
Fig. 1 is the combination section of the utility model first embodiment;
Fig. 2 is the exploded view of the utility model first embodiment;
Fig. 3 is the exploded view of jaw clamped condition of the hammer of the utility model first embodiment;
Fig. 4 is the plan view of the used jaw of the utility model;
Fig. 5 is the front view of the used driving component of the utility model;
Fig. 6 is the side view of the used driving component of the utility model;
Fig. 7 is the profile of the used drive member of the utility model;
Fig. 8 is the front view of the used drive member of the utility model;
Fig. 9 is the drawing in side sectional elevation of the used overcoat of the utility model;
Figure 10 is the combination section of the utility model second embodiment.
Describe in detail:
As shown in Figures 1 and 2, hammer of the present utility model mainly comprises: a body 10, and body 10 outsides are provided with a threaded portion 13, and its inside has several oblique guide groove 17 and some jaws 20, are installed in respectively in some guide grooves 17; And a drive member 30, be sheathed on rotationally in the aforementioned threads portion 13.And have one with the internal thread and an overcoat 40 of aforementioned threads portion 13 engagement, rotatably is sheathed on the aforementioned body 10, and can drives described drive member 30 rotations, and linear reciprocation moves on this threaded portion 13; An and driving component 50, driven by drive member 30 and along the y direction linear reciprocation displacement of body 10, and can drive some jaws along aforesaid guide groove 17 linear reciprocation displacements, and a handle for tool (end shows among the figure) that is installed in the instrument on this hammer is clamped or loosen.
As shown in Figures 1 and 2, body 10 is cylindrical, has a leading portion part 11 and a back segment part 12.Body 10 leading portion parts 11 central authorities form axial holes 14, and axial hole 14 has an aperture that is slightly larger than chuck 10 employed maximum pads approximately, so that the various tool handle all can be placed in it.Back segment part 12 central authorities of body 10 form endoporus 15, and endoporus 15 can cooperatively interact (end shows among the figure) with electronic or air tool rotating shaft, and body 10 is installed on the rotating shaft and can rotates thereupon.Lateral wall in back segment part 12 is provided with screw thread, and forms aforesaid threaded portion 13.
In the body 10, have a central axis 1, aforesaid axial hole 14, endoporus 15 and threaded portion 13 are coaxial with central axis 1, and after this central axis 1 is installed in the axle center of aforementioned electronic or pneumatic boring bar tool in body 10, can overlap with the central axis in axle center.
Aforementioned some guide grooves 17 are symmetrical in aforementioned central axis 1 ground and are arranged on the body 10, and the central axis 171 of each guide groove 17 tilts mutually to front end and central axis 1 direction towards body 10, and intersection is on central axis 1.(as shown in Figure 2).Because the general purpose tool chuck uses three jaws mostly, so is provided with three aforesaid oblique guide grooves 17 among this embodiment on this body 10.Each oblique guide groove 17 is that the center is the equal angles compartment of terrain and is arranged on the body 10 with aforementioned central axis 1, and its lateral wall by body 10 back segment parts 12 extends through in axial hole 14 madial walls of body 10 leading portion parts 11 obliquely, therefore can ccontaining aforementioned each jaw 20, make each jaw 20 in oblique guide groove 17 during to front slide, reciprocatable polymerization and each jaw 20 front end is met on the aforesaid central axis 1, and be separated from each other when it slides backward Shi Zehui.
In addition, some penetrates out the outer surface of body 10 the rough center section part of some oblique guide groove 17 branch, and some jaws 20 can be cooperatively interacted (repeating after the appearance) with such rotation nut 48, slides and be driven along some oblique guide grooves 17.
As shown in Figure 4, the leading portion of some jaws 20 has a jaw face 21 respectively, and can cooperatively interact and with a pad (for example drill bit, or bottle opener handle) be clamped and fastened on aforesaid central axis 1 concentric position on.In addition, each jaw 20 has the fastening end 22 that is T-shape towards the rear end of body 10, in order to engage with aforesaid driving component 50.
As shown in Figure 1, the rear end of jaw 20 combines with aforementioned driving component 50.As shown in Figure 1, driving component 50 and aforementioned drive member 30 to be can counterrotating mode combining, and can be driven member 30 drive along and the y direction linear reciprocation of body 10 moves and then drives some jaws 20 and moves along the longitudinal axis 171 direction linear reciprocation of guide groove 17.
As Fig. 5 and shown in Figure 6, driving component 50 central authorities have a through hole 51 that can be sheathed on body 10 back segment parts 12, and it has some chutes 52 that can engage with the fastening end 22 of jaw 20 rear ends with side that some jaws 20 engage.As shown in Figure 5, the number of chute 52 equates with the number of jaw 20, and it radially is arranged on the driving component 50 at interval and along driving component 50 with equal angles.And as shown in Figure 6, the cross section of chute 52 is the "T"-shaped groove of the fastening end 22 that is slightly larger than jaw 20, therefore can be sticked in slidably for the fastening end of jaw 20 among the chute 52, therefore be subjected to drive member 30 drives and during along the y direction linear reciprocation displacement of body 10, can drive jaw 20 and move when driving component 50.
As Fig. 1, Fig. 7 and shown in Figure 8, drive member 30 is discoid body, and its front end central authorities are one and are slightly larger than the shrinkage pool of driving component 50, and form a containing part 31, to be installed with driving component 50.
Drive member 30 central authorities have a threaded interior hole 32, threaded interior hole 32 can be locked on the threaded portion 13 of body 10, therefore when rotation drive member 30, therefore threaded interior hole 32 and threaded portion 13 relative rotations make the straight-line displacement of drive member 30 generations along the body y direction.And for preventing the displacement of drive member process, 13 end can a sheathed baffle ring 19 in the threaded portion, with backstop drive member 30.
As Fig. 1, Fig. 2 and shown in Figure 7, the madial wall of drive member 30 is positioned at driving component 50 front positions and is provided with a ring-type draw-in groove 33, and in draw-in groove 33, can snap in a ring-type clasp 34, in order to stop that driving component 50 is broken away from by containing part 31 front openings, therefore make drive member 30 advance or when retreating, all can drive driving component 50 and move together.
When drive member 30 and driving component 50 when linear reciprocation moves together, drive member 30 can be around central axis 1 rotation of body 10, and driving component 50 is because be subjected to the restriction of some jaws 20, so only can move along the y direction of body 10, and can't rotate, therefore make the relative rotation of generation between driving component 50 and the drive member 30.
Be provided with a device of reducing friction between the frictional force when reducing drive member 30, drive member 30 and end face that driving component 50 engages with driving component 50 relative rotations.In Fig. 1, Fig. 2 and embodiment shown in Figure 7, be provided with a ring-type ball orbit 35 in the containing part 32 of drive member 30 and driving component 50 approaching end faces, in order to ccontaining plurality of balls 36, so that can contact with roll mode between drive member 30 and the driving component 50.
As shown in Figures 1 and 2, overcoat 40 is being arranged on the body 10 around the mode of central axis 1 rotation, and overcoat 40 is the cylindrical body that the front and back end has opening, and elements such as aforementioned jaw 20, drive member 30, driving component 50 can be coated on wherein.The lateral wall of the leading portion part 11 of body 10 is positioned at overcoat 40 front positions and is provided with a ring-type draw-in groove 16, can snap in a clasp 18 in the draw-in groove 16, in order to backstop overcoat 40, it can't be moved forward along body 10 y directions.Body 10 rear ends are provided with a fixed jacket 60 regularly in addition, can overcoat 40 open rearward end be sealed by the rear end of overcoat 40, and stop that overcoat axially moves backward.
As Fig. 1, Fig. 2, Fig. 7 and shown in Figure 9, overcoat 40 madial walls are provided with at least one chute 41 longitudinally, and drive member 30 lateral walls have several to extend the projection 37 that can snap in the chute 41 and slide in chute 41, therefore make that drive member 30 can be by overcoat 40 driven rotary.
Mode of operation of the present utility model is asked for an interview Fig. 1 and shown in Figure 3, and the operator decided overcoat 60 with the proficiency holding when it used, and with another hand rotating jacket 40.When the operator with overcoat 40 towards locking direction when rotation, can drive drive member 30 rotations and driven by threaded portion 13 and move forward.Can promote driving component 50 reaches when drive member 30 moves forward, and then advance jaw 20 before the direction of guide groove 17 central axis 171, to move, and therefore the sandwich serface 21 that makes each jaw 20 produces and clamp action reciprocally towards central axis 1 polymerization.
When drive member 30 promotes driving component 50 and jaw 20 clamping tool handles, drive member 30 can apply great pressure in driving component 50, and because the contact between the two is provided with ball 36, so can reduce the frictional force between this two member, therefore the loss that makes the operator put on the coupling mechanism force of drive member 30 reaches minimum degree, therefore can promote some jaw 20 clamping tool handles effectively.
When the operator will loosen jaw 20, then with overcoat 40 towards rightabout rotation, just can drive actuator 30 and retreat, and drive driving component 50 and jaw 20 retreats, therefore make each jaw 20 jaw face 21 mutually away from.
Because some jaws 20 to be moving with central axis 1 incline direction, thus the fastening end 22 of jaw 20 afterbodys when mobile except the y direction along body 10 moves, still have one along body 10 component motion radially.And since some sliding trays 52 radially be along body 10 and be located at radially on the driving component 50, so driving component 50 promotes or can allow fastening end radially sliding along body 10 among chute 52 when dragging jaw 20.
As shown in figure 10, it is second embodiment of the present utility model, and among this embodiment, the front end face of used driving component 53 is a recessed taper seat, and the angle of inclination of taper seat is slightly perpendicular with the central axis 171 of guide groove 17.And the taper seat of driving component 53 is provided with some chutes 54, it is looked in front by driving component 53, the chute 52 of chute 54 and aforementioned first embodiment is in the same manner with the arrangement radially of equi-angularly space, it is looked in side by driving component 53, and chute 54 is roughly vertical mutually with the central axis 171 of chute 17.And the fastening end 24 of used jaw 23 ends among second embodiment also changes its angle, and it can be arranged in the chute 54 slidably.
Used driving component 53 adopts the purpose of this kind structure among second embodiment of the present utility model, be when making some jaw 23 clamping tool handles, its reaction force that oppositely puts on these driving component 53 front end faces can be vertical mutually with the taper seat of driving component 53 front ends and chute 54 and can engage part with driving component 53 in jaw 20 and produce oblique component, so that some jaws 20 suffered bending moments reduce.
In addition, among second embodiment, change aforementioned ball 36 into plurality of balls 39, so that bear bigger pressure.
Hammer of the present utility model adopts above-mentioned structure, and its main effect is as follows:
One, jaw 20 is driven in the linear advancement mode by driving component 50, thus can guarantee its action synchronously, and must not do the journey error adjustment.
Two, jaw 20 all is subjected to driving component 50 to drive the location, so its location accurately, and can guarantee the symmetry of the jaw face 21 of each jaw 20, therefore can guarantee the concentricity of its clamping tools handle.
Three, on the jaw 20 denture needn't be set, and in body 10 get on the bus the system one threaded portion 13.And since jaw of the present utility model do not have the journey error problem, so the position of threaded portion 13 must do not located especially, so that the manufacturing of chuck of the present utility model and procedure are more easy.
Four, the size at each position of three jaws 20 of the present utility model in addition, shape are all identical, so each jaw 20 is all interchangeable, so its manufacturing is more easy, and assembling the time needn't limit the order of assembling.
Five moreover, the threaded portion 13 on the body 10 and the internal thread of the threaded interior hole 32 on the drive member 30 are complete screw thread, the width of thread that the width of thread of the contact jaw that surpasses the three-jaw chuck of commonly using far away contacted with the nut engagement when therefore it meshed, so it can bear more powerful pressure, and makes hammer of the present utility model have better intensity.
Claims (7)
1, a kind of hammer comprises:
One body, having a central axis, is threaded portion and several oblique guide grooves at center with this central axis, it is spaced apart with equal angles to be symmetrical in this central axis ground, and is arranged on the body obliquely;
Several jaws are mounted slidably respectively in described guide groove;
One drive member is sleeved on the described threaded portion threadably;
One driving component, with described drive member can combining by relative rotation mode, and driven by described drive member and produce displacement;
Aforementioned jaw tail end to be can combining along the mode that moves radially and the described driving component of described body, and makes it driven by this driving component and reciprocatingly slide along described guide groove;
One overcoat is sheathed on described body rotatably around described central axis, rotates to drive described drive member, and the linear reciprocation displacement.
2, hammer as claimed in claim 1 is characterized in that, described member and aforementioned jaw tail end composition surface be provided with the jaw equal number be equal angles at interval and along the chute of described body arranged radially, the tail end of jaw is sticked in respectively in each chute.
3, hammer as claimed in claim 1 is characterized in that, described overcoat madial wall has at least one vertical chute, and described drive member has several outward and snaps in projection in vertical chute.
4, hammer as claimed in claim 1 is characterized in that, is provided with a device in order to the frictional force that reduces by two contact-making surfaces between described drive member and the surface that driving component axially contacts.
5, hammer as claimed in claim 4 is characterized in that, the device of the described power of reducing friction is several balls.
6, hammer as claimed in claim 4 is characterized in that, the device of the described power of reducing friction is several needle rollers.
7, hammer as claimed in claim 1 is characterized in that, the end face that described drive member engages with jaw reaches described chute and several oblique guide grooves and is slightly vertical configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95224176 CN2245510Y (en) | 1995-10-31 | 1995-10-31 | Tool Chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95224176 CN2245510Y (en) | 1995-10-31 | 1995-10-31 | Tool Chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2245510Y true CN2245510Y (en) | 1997-01-22 |
Family
ID=33871051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95224176 Expired - Fee Related CN2245510Y (en) | 1995-10-31 | 1995-10-31 | Tool Chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2245510Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1117651C (en) * | 1998-08-14 | 2003-08-13 | 动力工具霍德尔斯公司 | Chuck with locking sleeve |
| CN104589091A (en) * | 2015-01-15 | 2015-05-06 | 上海信奥科技有限公司 | Locking device for cutter of cutting machine |
-
1995
- 1995-10-31 CN CN 95224176 patent/CN2245510Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1117651C (en) * | 1998-08-14 | 2003-08-13 | 动力工具霍德尔斯公司 | Chuck with locking sleeve |
| CN104589091A (en) * | 2015-01-15 | 2015-05-06 | 上海信奥科技有限公司 | Locking device for cutter of cutting machine |
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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 |