CN1494968A - Cuuter holder - Google Patents
Cuuter holder Download PDFInfo
- Publication number
- CN1494968A CN1494968A CNA031249078A CN03124907A CN1494968A CN 1494968 A CN1494968 A CN 1494968A CN A031249078 A CNA031249078 A CN A031249078A CN 03124907 A CN03124907 A CN 03124907A CN 1494968 A CN1494968 A CN 1494968A
- Authority
- CN
- China
- Prior art keywords
- locking
- locking element
- section
- cutter holder
- locking body
- 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.)
- Granted
Links
- 230000004323 axial length Effects 0.000 claims abstract description 6
- 238000009527 percussion Methods 0.000 claims description 5
- 239000011435 rock Substances 0.000 claims description 5
- 230000007704 transition Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 16
- 239000010959 steel Substances 0.000 description 16
- 230000033001 locomotion Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
- B25D17/084—Rotating chucks or sockets
- B25D17/088—Rotating chucks or sockets with radial movable locking elements co-operating with bit shafts specially adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Drilling Tools (AREA)
Abstract
The tool socket has an insert opening (16) for the tool shaft and a radially movably mounted locking body (18) of predetermined axial length for locking the tool shaft in a radially inner locking position. A locking element (22) moves over a predetermined locking length between an unlocking position and locking position. The locking length is less than the axial length of the locking body. The locking element and locking body each have at least two sections axially adjacent and with different cross-sections connected together through stepped transitions. Independent claim describes machine tool with tool socket.
Description
Technical field
The present invention relates to a kind of cutter holder that is used for percussion drill or rock drill by claim 1 preamble.
Background technology
By the cutter holder of the known a kind of drill bit that is used to punching of DE 10026021A1, it can one-handed performance when tool changing.
Cutter holder has a toolholder bodies that has a patchhole for this reason, and the shank of tool can axially insert in this patchhole.
Can pass through the locking body axial locking at the state of the insertion shank of tool then, wherein in the groove embedding shank of tool that locking body moves towards vertically, so that the shank of tool axially has certain space when locking state.
At this moment by a radial deflection that can axially movable lock sleeve prevents locking body, if lock sleeve is in locked position.
If opposite lock sleeve moves on to the released position by the operator, locking body can radially outward be offset so, just the drill bit of punchinging so can take out from cutter holder or insert in the cutter holder.
Lock sleeve must move the given locking length of a structure vertically between locked position and released position when adopting known cutter holder.
Summary of the invention
Different therewith, the present invention is provided with such cutter holder, and locking length is less than the structure length of locking body in this cutter holder.
This provides on the one hand operates advantage eaily, because the operator need only make the distance of locking mobile-ratio weak point with the described cutter holder of beginning the time.
This can make cutter holder advantageously have short structure length on the other hand.
Locking element and locking body have at least two axial portion's sections that have varying cross-section side by side respectively in a kind of preferred implementing form of the present invention, these sections interconnect by the handing-over position of a step respectively, and wherein portion's section of portion's section of locking element and locking body becomes contrastively applying mutually respectively at locked position at least.
Locking element preferably has than interior cross section little in second section in first section, and locking body preferably has in first section than little external cross section in second section.
Second section than the imperial palace cross section of having of also saying so at the released position locking element preferably is fitted in its medial surface on the outside of first section with less external cross section of locking body, make locking body radially outward to be offset, thereby make no longer axial locking of the shank of tool.
Opposite having of locked position locking element is less in first Duan Yiqi inboard of cross section be fitted on the outside of first section of locking body with less external cross section, and second the Duan Yiqi inboard than the imperial palace cross section of having of locking element is fitted on the outside with second section of external cross section greatly of locking body.Also say so and compare locking body with the released position at locked position and radially inwardly press, embed then in the groove on the shank of tool shell surface, make shank of tool axial locking thus.
Here locking body preferably equals poor between the external diameter of the internal diameter of two portion's sections of locking element or two portion's sections of locking body at the radial distance between locked position and the released position.
Locking element additionally has the 3rd section that has a cross section in the third in a kind of preferred form of implementation of the present invention, this section is axially disposed within two portion section next doors and connects to their handing-over positions by step, and wherein the interior cross section of the 3rd section of locking element is greater than the interior cross section of other two portion's sections of locking element.That is to say that the 3rd section at the released position locking element advantageously is fitted in its inboard on the outside of second section of locking body.
The best inclined orientation in step handing-over position between each section of locking element or locking body, and form an acclivity, make and when locking element being moved axially, play chock for locking body by the operator, locking body is radially inwardly pressed.
No matter be preferably inclined orientation all of the step handing-over position of locking element or the step of locking body handing-over position, make two handing-over positions all have acclivity.
Here two acclivities are preferably identical with respect to the angle of axis direction, make two acclivities of locking element and locking body slide abreast at mutual plane when the released position carries out the transition to locked position, and at this moment locking body moves radially.
When determining acclivity, should be noted that to make when locking element moves axially with respect to locking body, should not cause locking element stuck with respect to the axial angle of locking element.Therefore acclivity is preferably so little with respect to axial angle, surpasses the static friction limit when making between locking body and locking element contact in the contact site, and can carry out sliding motion.
But the present invention is being not limited to step handing-over position aspect the Mechanical Builds of locking body and locking element.For example can also be, the interior cross section of locking element be expanded continuously from the released position to the locked position direction, and the external cross section of locking body dwindles continuously from the released position to the locked position direction.
For example locking element can dwindle to released position direction wedge shape from locked position, and the external cross section of locking body from locked position to the correspondingly wedge shape expansion of released position direction.
Here the angle of wedge of locking element and locking body is preferably identical, and the inboard of locking element can be moved to plane parallel on the locking body outside.
Moving of locking element for example can so be carried out, i.e. operator's direct control locking element.
But be provided with independent executive component in a kind of preferred form of implementation, this executive component is preferably made operating sleeve, and for example outer hull shape ground surrounds locking element.Executive component preferably can move axially, and passes through spring element pretension vertically, so that determine a resting position.The motion of executive component is delivered on the locking element then, and this for example so carries out, and promptly executive component drives locking element.But select executive component is connected with locking element rigidity or elasticity as another kind, so that the motion of executive component is delivered on the locking element.
This notion of used within the scope of the present invention locking element should be broadly construed, and should not be limited to start described outer hull shape and surround toolholder bodies and can axially movable lock sleeve.
The present invention also comprises the toolroom machine that has by cutter holder of the present invention in addition, for example percussion drill or rock drill.
Description of drawings
Obtain other advantages by the following drawings.Represent one embodiment of the present of invention in the accompanying drawings.Accompanying drawing, specification and claims comprise many combination of features.Those skilled in the art also are suitable for these features are studied separately, and are merged into significant other combinations.
Accompanying drawing is represented:
Fig. 1 the released position, the inside can adorn the sectional elevation by cutter holder of the present invention of a cutter.
But the sectional elevation of the cutter holder of Fig. 2 in Fig. 1 of the inside of locked position axial locking one cutter; With
The sectional elevation of cutter holder among Fig. 3 Fig. 1 and 2 in the time can taking out the released position of cutter.
The specific embodiment
Sectional elevation among Fig. 1 to 3 represents one by the cutter holder 10 that is used for percussion drill or rock drill of the present invention, and wherein cutter holder 10 can be with the axially-movable clearance axial locking shank of tool 12 of regulation, and when tool changing one-handed performance easily.
Be provided with many through holes that are distributed on the circumference on toolholder bodies 14, a clamping body 18 is installed respectively in these through holes, wherein through hole radially inwardly dwindles, and inwardly drops out to prevent locking body 18.
The outside of locking body 18 and axioversion 45 distribute in the zone of step handing-over position C, make step handing-over position C also constitute an acclivity.
Be fitted in its inboard at the section I of portion of lock sleeve 22 on the locked position shown in Fig. 2 on the outside of the section A of portion of locking body 18, and the section II of portion of lock sleeve 22 is fitted in its inboard on the outside of the section B of portion of locking body 18.At this moment radially inwardly extruding of locking body 18, and in the groove 20 on the embedding shank of tool 12, the axial locking shank of tool 12 thus.
On the contrary the section II of portion of lock sleeve 22 is fitted in its inboard on the outside of the section A of portion of locking body 18 when being used for shown in Fig. 1 packed the released position that being used for shown in the released position of the shank of tool 12 and Fig. 3 take out the shank of tool 12 into, and the section III of portion of lock sleeve 22 is fitted in its inboard on the outside of the section B of portion of locking body 18.Say so also here that locking body 18 radially outward is offset, no longer be embedded in the groove 20 on the shank of tool 12, the loosening cutter handle 12 thus.
Here lock sleeve 22, by mistake unclamps to prevent the shank of tool 12 axially to locked position direction pretension by spring part 24.
The operation of cutter holder 10 is undertaken by an operating sleeve 28, and this operating sleeve surrounds lock sleeve 22 outside and can move axially, and wherein operating sleeve 28 passes through spring part 30 pretension vertically.Hit on lock sleeve 22 at operating sleeve 28 operating sleeve 28 when lock sleeve 22 directions move, at this moment lock sleeve 22 is axially driven.
Secondly cutter holder 10 has an arrestment mechanism, and this arrestment mechanism therefore can one-handed performance when tool changing at released position braking and locking cover.
Wherein this arrestment mechanism is made up of a steel ball 34, and this steel ball radially is bearing on the toolholder bodies 14 in the radially-arranged through hole movably.Here the through hole on this toolholder bodies 14 radially inwardly dwindles gradually, inwardly falls in the patchhole 16 from through hole to prevent steel ball 34.That is to say that steel ball 34 can only inwardly partly be projected in the patchhole 16, as shown in fig. 1.
Arrestment mechanism has a banking pin 36 in addition, and this banking pin radially is bearing in the radially-arranged hole on the lock sleeve 22 movably, and wherein banking pin 36 is by ring spring 38 inside pretension radially.
Illustrate by means of Fig. 1 how the shank of tool 12 inserts cutter holder 10, auto lock then below.
Before inserting, the shank of tool 12 at first lock sleeve 22 must be put into the released position shown in Fig. 1.The operator moves operating sleeve 28 to lock sleeve 22 directions for this reason, lock sleeve 22 axial accompany movements at this moment, and after the step of final banking pin 36 kaysers between two grooves, and axial lock is decided lock sleeve 22 thus.
Then operator's unclamp operation cover 28, then because the pretightning force of spring 30 makes it return to its original position.
The shank of tool 12 just radially outward pushes locking body 18 when the shank of tool 12 is axially inserted patchhole 16, in the groove 20 that then locking body 18 embeds on the shank of tool 12.
The end face of the shank of tool 12 radially outward pushes steel ball 34 when the shank of tool 12 continues to move into, and at this moment banking pin 36 pretightning force that overcomes ring spring 38 is equally radially outward pushed.
In the time of then on banking pin 36 is lifted to two steps between the groove, spring 24 makes lock sleeve 22 move axially to the locked position shown in Fig. 2.At this moment the handing-over position IV of lock sleeve 22 hits on the C of the handing-over position of locking body 18.Right latter two handing-over position IV, C mutual plane slide abreast, and at this moment locking body 18 is radially inwardly pushed, in the groove 20 that locking body 18 embeds on the shank of tools 12, and the axial locking shank of tool 12 thus.At this moment the locking length that is produced according to the present invention is less than the axial length L of locking body 18.
That is to say the shank of tool 12 auto lock when inserting cutter holder 10, do not need the operator to get involved.
Illustrate by means of Fig. 3 how the shank of tool 12 takes out from cutter holder 10 below.
Before taking out, the shank of tool 12 at first lock sleeve 22 must be put into the released position shown in Fig. 3 from the locked position shown in Fig. 2 from cutter holder 10.For this reason the operator with operating sleeve 28 from position axis shown in Fig. 1 to moving to lock sleeve 22 directions, at this moment operating sleeve 28 axially drives lock sleeves 22, is fitted in steel ball 34 back until banking pin 36 in cutter one side.
Then the operator unclamps operating sleeve 28, then because the restoring force of spring 30 makes operating sleeve 28 return to its original position.
But lock sleeve 22 is axially braked by steel ball 34 and banking pin 36, because banking pin 36 sides are fitted on the steel ball 34, and steel ball 34 is outwards pushed by the shell surface of the shank of tool 12.Here should be mentioned that the groove 20 that is used for locking body 18 does not surround the part of laying steel ball 34 at circumferencial direction.That is to say that steel ball 34 can not inwardly be displaced in the groove 20, because this groove is with respect to the setting of staggering of steel ball 34 angles.
The operator can axially transfer to the shank of tool 12 from cutter holder 10 then, discharges steel ball 34 until the last shank of tool 12, and then steel ball is radially to bias internal.Banking pin 36 is just no longer locked by steel ball 34 like this, thereby makes lock sleeve 22 because the pretightning force of spring 24 moves to the locked position shown in Fig. 2.
The present invention is not limited to above preferred embodiment.But many different schemes and modification can be arranged, they use conception of the present invention equally, therefore belong within the protection domain.
The pictorial symbolization table
10 cutter holders
12 tool handles
14 toolholder bodies
16 patchholes
18 locking bodies
20 grooves
22 lock sleeves
24 springs
28 operating sleeves
30 springs
The 32 dustproof axle collars
34 balls
36 banking pins
38 ring springs
Portion's section of I lock sleeve
Portion's section of II lock sleeve
Portion's section of III lock sleeve
IV lock sleeve handing-over position
V lock sleeve handing-over position
Portion's section of A locking body
Portion's section of B locking body
C locking body handing-over position
L locking body length
Claims (10)
1. cutter holder, especially for the cutter holder of percussion drill or rock drill, it has a patchhole (16) that is used for mounting cutter handle (12); The locking body with regulation axial length (18) that at least one radially is supported movingly, locking body (18) axial locking shank of tool (12) when is positioned at radially inner locked position wherein, and locking body (18) loosening cutter handle (12) when is positioned at radially outer released position; This cutter holder also has a locking element (22), this locking element moves between a released position and a locked position on the locking length of regulation, wherein locking element (22) is braked when locked position and is locked body (18), unclamp locking body (18) when the released position, it is characterized by: this locking length is less than the axial length of locking body (18).
2. by the described cutter holder of claim 1, it is characterized by: locking element (22) and locking body (18) have at least two section (I of portion with varying cross-section that axially are arranged side by side respectively, II, A, B), described section passed through the handing-over position (IV of a step respectively, C) interconnect, wherein portion's section of locking element (22) (I, II) and portion's section of locking body (18) (A B) fits respectively at locked position at least in couples mutually.
3. by the described cutter holder of claim 2, it is characterized by: locking element (22) has one the 3rd section (III), this section axially-aligned is at two section (I of portion in addition of locking element (22), II) other, and by step handing-over position (V) two portion's sections (I, II) connections in addition with locking element (22).
4. by claim 2 and/or 3 described cutter holders, it is characterized by: the step handing-over position (IV) of locking element (22) and/or the step handing-over position (C) of locking body (18) tilt to move towards, and constitute an acclivity.
5. by at least one described cutter holder of aforesaid right requirement, it is characterized by: (IV C) has axial length less than locking body (18) length at step handing-over position.
6. by at least one described cutter holder of aforesaid right requirement, it is characterized by: locking element (22) is fitted on locking body (18) outside with its inboard, wherein locking element (22) has an interior cross section that strengthens to the locked position direction from the released position, and locking body (18) has an external cross section that correspondingly reduces to the locked position direction of locking element (22) from the released position of locking element (22).
7. by at least one described cutter holder of aforesaid right requirement, it is characterized by: be provided with an executive component (28) that supports movingly, with operation locking element (22).
8. by at least one described cutter holder of aforesaid right requirement, it is characterized by: locking element (22) and/or executive component (28) are sleeve shaped.
9. by at least one described cutter holder of aforesaid right requirement, it is characterized by: locking element (22) and/or executive component (28) pass through spring part (24,30) to locked position direction pretension.
10. have toolroom machine, particularly percussion drill or rock drill by at least one the described cutter holder (10) of aforesaid right requirement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10243290.2 | 2002-09-18 | ||
| DE2002143290 DE10243290B4 (en) | 2002-09-18 | 2002-09-18 | tool holder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1494968A true CN1494968A (en) | 2004-05-12 |
| CN100515628C CN100515628C (en) | 2009-07-22 |
Family
ID=31896152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031249078A Expired - Fee Related CN100515628C (en) | 2002-09-18 | 2003-09-18 | Cutter holder, and machine tool, percussion drill and hammer drill equipped with the cutter holder |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1400316A1 (en) |
| CN (1) | CN100515628C (en) |
| DE (1) | DE10243290B4 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102078978A (en) * | 2009-11-26 | 2011-06-01 | C.&E.泛音有限公司 | Header for a machine tool |
| CN101600528B (en) * | 2007-02-01 | 2012-06-20 | 罗伯特·博世有限公司 | Tool holder for a mechanical tool, in particular a mechanical hand tool |
| CN116213774A (en) * | 2023-04-21 | 2023-06-06 | 广东马记智能科技有限公司 | Granule booster-type handle of a knife |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2884668B1 (en) | 2005-04-14 | 2007-06-22 | Canon Europa Nv Naamlooze Venn | NAVIGATION METHOD IN AT LEAST ONE GRAPHICAL INTERFACE, COMPUTER PROGRAM PRODUCT, STORAGE MEDIUM AND CORRESPONDING CONTROL DEVICE. |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6399105A (en) * | 1986-10-16 | 1988-04-30 | Shibaura Eng Works Co Ltd | Structure for holding bit in oscillation drill |
| DE4310835A1 (en) * | 1993-04-02 | 1994-10-06 | Bosch Gmbh Robert | Hammer and / or percussion hammer |
| JP3423497B2 (en) * | 1995-09-06 | 2003-07-07 | 株式会社マキタ | Bit mounting device for portable tools |
| DE19827172B4 (en) * | 1998-06-18 | 2006-11-09 | Robert Bosch Gmbh | Tool holders, in particular for drills or impact hammers |
| DE19834503A1 (en) * | 1998-07-31 | 2000-02-03 | Hilti Ag | Tool holder for drilling and chiseling tools |
| DE10026021A1 (en) * | 2000-05-25 | 2001-11-29 | Hilti Ag | Tool holder for a drill bit |
-
2002
- 2002-09-18 DE DE2002143290 patent/DE10243290B4/en not_active Expired - Fee Related
-
2003
- 2003-06-23 EP EP03014033A patent/EP1400316A1/en not_active Withdrawn
- 2003-09-18 CN CNB031249078A patent/CN100515628C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101600528B (en) * | 2007-02-01 | 2012-06-20 | 罗伯特·博世有限公司 | Tool holder for a mechanical tool, in particular a mechanical hand tool |
| CN102078978A (en) * | 2009-11-26 | 2011-06-01 | C.&E.泛音有限公司 | Header for a machine tool |
| CN102078978B (en) * | 2009-11-26 | 2016-01-27 | C.&E.泛音有限公司 | For the adapter of lathe |
| CN116213774A (en) * | 2023-04-21 | 2023-06-06 | 广东马记智能科技有限公司 | Granule booster-type handle of a knife |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1400316A1 (en) | 2004-03-24 |
| DE10243290B4 (en) | 2007-04-05 |
| CN100515628C (en) | 2009-07-22 |
| DE10243290A1 (en) | 2004-04-15 |
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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: 20090722 Termination date: 20130918 |