CN208628464U - Implement clamping systems and electric tool with it - Google Patents

Abstract

The application provides a kind of Implement clamping systems and the electric tool with it, which includes: matrix, be arranged inside along axially through mounting hole；Around the circle handle drill bit clamp assemblies of matrix setting comprising: first sleeve ontology, the first clamping part, the first locking part and the first motor adjustment portion；And the mounting hole shutter device around matrix setting comprising: second sleeve ontology, stopper section, the second locking part and backstop motion adjustment portion；Wherein, there are two types of adaptation patterns for Implement clamping systems tool, and under the first adaptation pattern, the first locking part and the second lock portion dissociation are locked；First clamping part is driven and clamps or discharge circle handle drill bit, and stopper section is driven and blocks mounting hole；Under the second adaptation pattern, the first locking part and the cooperation of the second locking part are locked；First clamping part keeps clamping or discharges the state of circle handle drill bit, and mounting hole is connected in stopper section.According to the technical solution of the application, a variety of maloperations can be effectively avoided.

Description

Implement clamping systems and electric tool with it

Technical field

This application involves electric tool more particularly to a kind of Implement clamping systems for electric tool.

Background technique

In the prior art, electric hammer and electric drill are very mature electric tool.Wherein, electric hammer is for impacting and boring Hole, and electric drill is then mainly used for drilling.To realize different functions, electric hammer and electric drill are matched with drill bit using certain types of respectively Conjunction mode.For example, the drill bit that usually there is electric hammer torsion pass key to carry out fit applications trough of belt handle；And then usually there are three clamping jaws for tool for electric drill Carry out fit applications circle handle drill bit.In fact, electric hammer can also be merely provided for drilling function, it plays the work for being equivalent to electric drill at this time With.But since its Implement clamping systems can not directly be adapted to round handle drill bit, therefore user need to additionally increase adapter toward contact.This Cause process increasingly complex；And due to increasing number of parts, precision reduction is also resulted in.

Summary of the invention

The application technical problem underlying to be solved is to provide the Implement clamping systems for improving maloperation situation.

In order to solve the above technical problems, one side the application provides a kind of Implement clamping systems comprising: matrix, in Be arranged along axially through mounting hole；Around the circle handle drill bit clamp assemblies of described matrix setting comprising: first sleeve sheet Body；For clamping or discharging the first clamping part of round handle drill bit；For providing the first locking part of lock fit；And it is unlocking For driving the first motor adjustment portion of first clamping part under state；And the mounting hole opening and closing around described matrix setting Component comprising: second sleeve ontology；For blocking or being connected the stopper section of the mounting hole；For with first locking Second locking part of portion's cooperation；And the backstop motion adjustment portion for driving the stopper section；Wherein, tool clamping system There are two types of adaptation patterns for system tool, and under the first adaptation pattern, first locking part and second lock portion dissociation are locked；Institute It states the first clamping part to be driven and clamp or discharge circle handle drill bit, and the stopper section is driven and blocks the mounting hole；? Under second adaptation pattern, first locking part and second locking part cooperation are locked；First clamping part keeps clamping Or the state of circle handle drill bit is discharged, and the mounting hole is connected in the stopper section.

Another aspect the application also provides a kind of electric tool comprising foregoing Implement clamping systems.

According to the technical solution of the application, set by the linkage to circle handle drill bit clamp assemblies and mounting hole shutter device Meter, so that round handle drill bit clamping or release movement, and blocking group simultaneously can be executed when system is under the first adaptation pattern Intracorporal mounting hole prevents the circle handle drill bit entering tool interior contact of small size to be knocked injection to impact part, and same When also avoid user in this mode to the maloperation of grooved shank drill；And when system is under the second adaptation pattern, it can So that the first clamping part keeps current state: closing for example being kept to carry out the use of arrestment；Or it keeps it turning on to realize slot The installation of handle drill bit, and prompt to be not suitable for circle handle drill bit under this mode of operator.The appearance of a variety of maloperations is avoided as a result, Improve the application simplicity and reliability of equipment.

Detailed description of the invention

In conjunction with attached drawing refering to the detailed description of following specific embodiments, the application will be more fully appreciated, in attached drawing Same appended drawing reference refers to same element in view.Wherein:

Fig. 1 shows that a kind of Implement clamping systems of specific embodiment are illustrated along axial direction with the solid of the first visual angle section view Figure；

Fig. 2 shows that a kind of Implement clamping systems of specific embodiment are illustrated along axial direction with the solid of the second visual angle section view Figure；

Fig. 3 shows the circle handle drill bit clamp assemblies and mounting hole opening and closing group of a kind of Implement clamping systems of specific embodiment The decomposition diagram of part；And

Fig. 4 shows a kind of schematic diagram of the support ring of the Implement clamping systems of specific embodiment.

Specific embodiment

It please refers to shown in Fig. 1 to Fig. 4, is wrapped according to a kind of Implement clamping systems 100 of specific embodiment of the application It includes: for accommodating and assembling the matrix 110 of all types of drill bits；And it is circumferentially positioned at outside matrix 110, and torn open for controlling drill bit The circle handle drill bit clamp assemblies 120 and mounting hole shutter device 130 of dress state.These components will hereafter be described one by one.

Wherein, in matrix 110 setting along axially through mounting hole 111, which extends to all kinds of drill bits Assembly or disassembly mouth, to be packed into or take out all kinds of drill bits, and this end is defined as front end in this programme；The other end then extends Job task is executed, and this end exists to the drive part of electric tool in order to which drill bit of the electric tool to loading drives Rear end is defined as in this programme.In addition, being also disposed on direction from left to right, in matrix 110 by taking Fig. 1 as an example One through-hole 112, the second through-hole 113 and torsion pass key 111a.Wherein, in this embodiment, there are three tilt simultaneously towards front end for tool Through the first through hole 112 of the matrix 110, it is used to plug round handle drill bit clamp assemblies 120 and is achieved in circle handle drill bit Clamping or release operation.In addition, in this embodiment, the of the matrix 110 is also tilted and run through towards front end with one Two through-holes, are used to plug and hereinafter by the second clamping part 151 addressed and are achieved in clamping or release to grooved shank drill Operation.Furthermore on the inside of mounting hole 111 protrusion setting at least two torsion pass key 111a, torsion pass key 111a can respectively with it is to be installed With the keyway cooperation on grooved shank drill, to realize that the Primary Location to grooved shank drill acts on, and then again via the second clamping part Realize the clamping to grooved shank drill.

Referring to Fig. 1 to Fig. 3, which includes: first sleeve ontology 121；For clamping or discharging First clamping part 122 of circle handle drill bit；For providing the first locking part 123 of lock fit；And it is used in the unlocked state Drive the first motor adjustment portion 124 of the first clamping part 122.Wherein, before first sleeve ontology 121 is circumferentially positioned at matrix 110 Portion, and can directly be contacted by operator to execute corresponding operation, and drive the other parts being provided at its inner portion in turn.And the The rear portion of first sleeve ontology 121 is arranged in one locking part 123, with for the mounting hole shutter device that will hereafter be described in detail 130 the second locking part 123 cooperation.In addition, institute above can be plugged in by being configured to multiple first clamping parts 122 of clamping jaw form In the first through hole 112 stated, and moved back and forth under the driving in the first motor adjustment portion 124 along first through hole 112.This Outside, the first motor adjustment portion 124 for being configured to cyclic structure is arranged around matrix 110 and is connected to first sleeve ontology 121. Then, when operator rotates first sleeve ontology 121, the first motor adjustment portion 124 rotates in a circumferential direction movement therewith, and general It is converted into the first clamping part 122 along the reciprocating motion of first through hole 112.As a kind of more specifically way of realization, first By screw thread come passing movement between motor adjustment portion 124 and the first clamping part 122.

With continued reference to Fig. 1 to Fig. 3, which includes: second sleeve ontology 131；For blocking or leading The stopper section 132 of logical mounting hole 111；The second locking part 133 for cooperating with the first locking part 123；And stop for driving The backstop motion adjustment portion 134 of stopper 132.Wherein, second sleeve ontology 131 is circumferentially positioned at 110 rear portion of matrix, and can be grasped Author directly contacts to execute corresponding operation, and drives the other parts being provided at its inner portion in turn.And second locking part 133 The front of second sleeve ontology 131 is set, for the first locking part with round handle drill bit clamp assemblies 120 described previously 123 cooperations.And first locking part 123 and a kind of mutually matched specific implementation form of the second locking part 133 be locking tooth socket 123a and locking tooth 133a.It is extended radially through in addition, being configured to the stopper section 132 of valve pin form and can be plugged on matrix 110 Through-hole (not indicated in figure) in, and the specific location of the through-hole may be provided on rear side of torsion pass key 111a.At this point, in a kind of state Under, which can be engaged to together in the keyway on grooved shank drill with torsion pass key 111a；In the other state, valve pin can deeply pacify In dress hole 111 and mounting hole 111 is blocked, and then prevents matrix 110 of the drill bit across the Implement clamping systems.In addition, being constructed At inner sleeve 134 structure type backstop motion adjustment portion 134 also have tapered slope 134a, tapered slope 134a with only Stopper 132, which contacts, simultaneously to be cooperated, then, when mounting hole shutter device 130 axially towards after move and be converted into inner sleeve 134 along axis To when movement backwards, under the compressing of tapered slope 134a, stopper section 132 will radial downwardly directed movement simultaneously.Optionally, when Mounting hole shutter device 130 axially towards it is preceding movement and inner sleeve 134 equally axially towards preceding movement when, tapered slope 134a is not Stopper section 132 is oppressed again；At this point, dynamic clamping head and quiet clamping head should also be arranged to ensure that the stopper section 132 can return back to initial position 132a, tapered slope 134a oppress stopper section 132 when, dynamic clamping head and quiet clamping head 132a is compressed, and tapered slope 134a no longer When oppressing stopper section 132, dynamic clamping head and quiet clamping head 132a will drive stopper section 132 radially towards upper movement, realize and reset.

It include two kinds of adaptation patterns with the configuration tool grasping system 100 in previous embodiment, in the first adaptation pattern Under, the first locking part 123 separates unlock with the second locking part 133；First clamping part 122 is driven and clamps or discharge circle handle brill Head, and stopper section 132 is driven and blocks mounting hole 111；Under the second adaptation pattern, the first locking part 123 and the second locking The cooperation locking of portion 133；First clamping part 122 keeps clamping or discharges the state of circle handle drill bit, and mounting hole is connected in stopper section 132 111。

Under such arrangement, the technical solution of the application passes through to circle handle drill bit clamp assemblies and mounting hole shutter device Linkage design, so that when system is under the first adaptation pattern round handle drill bit clamping or release movement can be executed, and simultaneously The intracorporal mounting hole of blocking group prevents the circle handle drill bit entering tool interior contact of small size to be knocked and penetrate to impact part Out, and simultaneously also avoid user in this mode to the maloperation of grooved shank drill；And the second adaptation pattern is in system When lower, the first clamping part can be made to keep current state: closing for example being kept to carry out the use of arrestment；Or it keeps it turning on and It realizes the installation of grooved shank drill, and prompts to be not suitable for circle handle drill bit under this mode of operator.It avoids including while using as a result, The generation of a variety of maloperations such as including two kinds of drill bits improves the application simplicity and reliability of equipment.

The movement of each part under two kinds of adaptation patterns will be made and being more fully described as follows.For example, in the first locking part 123 when separating unlock with the second locking part 133, and the first motor adjustment portion 124 can circumferentially occur back and forth relative to matrix 110 Movement, thus the clamping of the first clamping part 122 of driving or release circle handle drill bit；Match in the first locking part 123 and the second locking part 133 When closing locking, the first motor adjustment portion 124 keeps opposing stationary with matrix 110, so that the first clamping part 122 keeps clamping or releases Put the state of round handle drill bit.

For another example, along axial reciprocal fortune can occur for mounting hole shutter device 130 relative to circle handle drill bit clamp assemblies 120 It is dynamic；Under the first adaptation pattern, mounting hole shutter device 130 moves to the first locking part 123 and the second locking axially towards after The separation unlock of portion 133；And under the second adaptation pattern, mounting hole shutter device 130 is axially towards preceding moving to the first locking part 123 and second locking part 133 cooperation lock.

In addition, to ensure that movement of the different parts under different adaptation patterns can accurately execute in place, mounting hole opening and closing Component 130 further include: be set to the positioning region 135 of 131 inner wall of second sleeve ontology, positioning region 135 has suitable corresponding to first It is with mode, corresponding to the second adaptation pattern prelocalization slot 135b and connection after locating slot 135a and prelocalization slot 135b mistake Cross cambered surface 135c；And positioning ring 136；Wherein, positioning ring 136 is as mounting hole shutter device 130 is along the reciprocal fortune of axial generation It moves and moves in prelocalization slot 135b or rear locating slot 135a.

Referring to fig. 4, optionally, the Implement clamping systems further include: support ring 140, have respectively with second sleeve sheet Profile that 131 inner wall of body and 110 outer wall of matrix match, and being fixed on matrix 110 by fixing ring 144, and can be with Matrix 110 moves.Limited block 141 and limitation positioning ring for limiting 136 radial motion of positioning ring is set in support ring 140 136 limiting slots 142 being axially moved, to realize the fixed function to positioning ring 136.

The module for realizing Multi Loading and Unloading Functions to another kind of drill bit as the Implement clamping systems, also has grooved shank drill clamping Component 150.And the component includes: the second clamping part 151 for clamping or discharging grooved shank drill, is plugged in 110 side of matrix In the second through-hole 113 being along inclined direction arranged forward on wall；And the second motor adjustment for driving the second clamping part 151 Portion 152.Wherein, the second clamping part 151 is configured to the structure type of locking pin, and can be with the concave surface on grooved shank drill to be assembled Cooperated, locks or release the grooved shank drill to realize.In addition, being configured to the second motor adjustment portion of cyclic structural format 152 around matrixes 110 be arranged, and its outside be arranged ears can from the axial limiting slot 137 on second sleeve ontology 131 to Outer stretching, when operator stirs the ear, the second motor adjustment portion 152 can move backwards；In addition, the second motor adjustment portion 152 rear side also has is in the elastic element 153 of compressive state to provide it thrust, to realize it axially towards preceding always Movement；The aforementioned movement in the second motor adjustment portion 152 can further be converted into the second clamping part 151 along the second through-hole 113 Reciprocating motion.Specifically, in a normal state, the second motor adjustment portion 152 is mentioned by compressed elastic element 153 The thrust of confession, and keep the second hold assembly 151 connected to it to be in and extend to the position for protruding from the second through-hole 113；And When needing to discharge grooved shank drill, operator can stretch out in second sleeve ontology 131 by operating the second motor adjustment portion 152 Outer ear moves forward and backward to control it, and converts thereof into the second clamping part 151 along the reciprocating motion of the second through-hole 113.

Although it is not shown in the diagrams, but as another optional embodiment, the second motor adjustment portion and the can also be made The connection of two sleeve bodies.For example, thrust of first side in the second motor adjustment portion by elastic element, and its second side is resisted against Extended on stopper section outstanding radially inwards by second sleeve ontology.At this point, under the first adaptation pattern, with second sleeve Ontology moves back, and the second motor adjustment portion is moved with second sleeve ontology, and the second clamping part is pulled to and is retracted into second and leads to In hole；Under the second adaptation pattern, with the Forward of second sleeve ontology, the second motor adjustment portion by elastic element drive and incite somebody to action Second clamping part is pushed into stretch in mounting hole from the second through-hole.

It, as follows will be to each part in grooved shank drill clamp assemblies under two kinds of adaptation patterns based on the optional embodiment It makes and being more fully described.For example, when the first locking part and the second lock portion dissociation are locked, the second motor adjustment portion phase For matrix axially towards rear movement, so that the second clamping part of driving discharges grooved shank drill；In the first locking part and the second locking When portion's cooperation locking, the second motor adjustment portion relative to matrix axially towards preceding movement so that the second clamping part holding tank handle bores Head.

It optionally, can also be in its 111 front end additional dustproof cover of mounting hole as the remodeling of the Implement clamping systems 160, to avoid in the state of stopping using in the mounting hole 111 of dust entering tool.It, should as a kind of specific implementation form Dustproof cover 160 can be connected by a snap with first sleeve ontology 121.

For the technical solution for preferably illustrating the application, described herein by example is carried out with the Implement clamping systems of complete set Execution movement and mutual interactively of its each component under different adaptation patterns.

Under the first adaptation pattern, axially towards rear mobile second sleeve ontology 131, on the one hand, this to be provided thereon Locking tooth 133a and first sleeve ontology 121 on locking tooth socket 123a be detached from, thus release second sleeve ontology 131 for The locking effect of first sleeve ontology 121.On the other hand, moving back with second sleeve ontology 131, inner sleeve connected to it 134 also move back together.During moving back, the tapered slope 134a of inner sleeve 134 applies radially inwards stopper section 132 Pressure realizes the blocking to mounting hole, to prevent small ruler so that stopper section 132 extends into the mounting hole 111 of matrix 110 Very little circle handle drill bit entering tool interior contact is knocked injection to impact part, and also avoids user in such mould simultaneously To the maloperation of grooved shank drill under formula.In another aspect, due to relieving locking limitation, first sleeve ontology 121 can controllably edge Movement is circumferentially rotated, and drives the first clamping part 122 along first through hole 112 via the first motor adjustment portion 124 of rotation Reciprocating motion is executed, to realize the clamping or release to circle handle drill bit.

Under the second adaptation pattern, axially towards preceding mobile second sleeve ontology 131, on the one hand, this to be provided thereon Locking tooth 133a engaged with the locking tooth socket 123a on first sleeve ontology 121, thus realize second sleeve ontology 131 for The locking effect of first sleeve ontology 121.On the other hand, with the Forward of second sleeve ontology 131, inner sleeve connected to it 134 also move forward together.During Forward, the tapered slope 134a of inner sleeve 134, which is released, applies radially stopper section 132 Pressure inwardly, at this point, stopper section 132 is able to the mounting hole 111 away from matrix 110 under the action of dynamic clamping head and quiet clamping head 132a Initial position is extended to, realizes the unlatching to mounting hole, grooved shank drill is inserted into mounting hole 111 so as to realize, and passes through Assembly positioning is realized by the keyway on torsion pass key 111a, stopper section 132 and grooved shank drill.In another aspect, due in locking State, first sleeve ontology 121 can not circumferentially rotate movement again, thus the first motor adjustment portion 124 coupled with it and First clamping part 122 can not execute movement, and only be able to maintain the end-state before locking, at this point, the first clamping part 122 can not It realizes and the clamping or release of circle handle drill bit is operated, operator can also be prompted to be not suitable for circle handle drill bit in such a mode.

In addition, although it is not shown in the diagrams, also providing a kind of embodiment of electric tool herein.Before the electric tool may include The Implement clamping systems 100 mentioned in any embodiment are stated, therefore also there is corresponding technical effect.As showing for concrete application Example, the electric tool can be electric hammer, impact drill or hand-held drill.

The above specific embodiment is merely to illustrate the application, and is not the limitation to the application.To illustrate relative position Relationship, used herein left and right, upper inferior opposite directional terminology, not for the restriction of absolute position.Related technology The those of ordinary skill in field can also make the technical solution of the application in the case where not departing from scope of the present application Various change and modification, therefore all equivalent technical solutions also belong to the scope of the application, the scope of patent protection of the application It should be defined by the claims.

Claims (10)

1. a kind of Implement clamping systems (100), characterized in that it comprises:

Matrix (110), be arranged inside along axially through mounting hole (111)；

Around the circle handle drill bit clamp assemblies (120) of described matrix (110) setting comprising: first sleeve ontology (121)；With In clamping or the first clamping part (122) of release circle handle drill bit；For providing the first locking part (123) of lock fit；And In the unlocked state for driving the first motor adjustment portion (124) of first clamping part (122)；And

Around the mounting hole shutter device (130) of described matrix (110) setting comprising: second sleeve ontology (131)；For Block or be connected the stopper section (132) of the mounting hole (111)；The second lock for cooperating with first locking part (123) Stop (133)；And the backstop motion adjustment portion (134) for driving the stopper section (132)；

Wherein, there are two types of adaptation patterns for Implement clamping systems (100) tool, under the first adaptation pattern, first locking Portion (123) separates unlock with second locking part (133)；First clamping part (122) is driven and clamps or discharge circle Handle drill bit, and the stopper section (132) are driven and block the mounting hole (111)；Under the second adaptation pattern, described first Locking part (123) and second locking part (133) cooperation lock；First clamping part (122) keeps clamping or release circle The state of handle drill bit, and the mounting hole (111) is connected in the stopper section (132).

2. Implement clamping systems (100) according to claim 1, which is characterized in that first locking part (123) with When the second locking part (133) separation unlock, first motor adjustment portion (124) can be relative to described matrix (110) It circumferentially moves back and forth, thus driving the first clamping part (122) clamping or release circle handle drill bit；In first locking part (123) when locking with second locking part (133) cooperation, first motor adjustment portion (124) and described matrix (110) are protected Hold it is opposing stationary so that first clamping part (122) keep clamping or discharge circle handle drill bit state；Wherein, described first Motor adjustment portion (124) is arranged around described matrix (110), and first clamping part (122) is plugged in described matrix (110) In the first through hole (112) being along inclined direction arranged forward on side wall；The fortune that rotates in a circumferential direction in first motor adjustment portion (124) It is dynamic to be converted into first clamping part (122) along the reciprocating motion of the first through hole (112).

3. Implement clamping systems (100) according to claim 1, which is characterized in that the mounting hole shutter device (130) It can be moved back and forth relative to the round handle drill bit clamp assemblies (120) along axial；Under the first adaptation pattern, mounting hole Shutter device (130) moves to first locking part (123) axially towards after and separates solution with second locking part (133) Lock；And under the second adaptation pattern, mounting hole shutter device (130) is axially towards preceding moving to first locking part (123) Cooperate with second locking part (133) and locks；

Wherein, the mounting hole shutter device (130) further include: be set to the positioning region of second sleeve ontology (131) inner wall (135), the positioning region (135) has the rear locating slot (135a) corresponding to the first adaptation pattern, corresponds to the second adaptation mould The transition cambered surface (135c) of locating slot (135a) and prelocalization slot (135b) after the prelocalization slot (135b) of formula and connection are described；With And positioning ring (136)；Wherein, the positioning ring (136) is as the mounting hole shutter device (130) is along the reciprocal fortune of axial generation It moves and moves in the prelocalization slot (135b) or rear locating slot (135a)；

Wherein, further includes: support ring (140), have respectively with second sleeve ontology (131) inner wall and described matrix (110) profile that outer wall matches；And the limited block for limiting the positioning ring (136) radial motion is set thereon (141) and the limiting slot (142) that is axially moved of the limitation positioning ring (136)；And/or the backstop motion adjustment portion (134) Including the inner sleeve with tapered slope, the tapered slope (134a) and the stopper section (132) cooperate, and mounting hole is opened It closes movement of the component (130) axially towards after and is converted into movement and the stopper section of the inner sleeve axially towards after (132) radial downwardly directed movement；Wherein, the stopper section (132) further includes dynamic clamping head and quiet clamping head (132a), in the mounting hole When shutter device (130) is axially towards preceding movement, the dynamic clamping head and quiet clamping head (132a) drive the stopper section (132) radially towards Upper movement.

4. according to claim 1 to Implement clamping systems described in 3 any one (100), which is characterized in that first locking Portion (123) and second locking part (133) are mutually matched locking tooth (133a) and locking tooth socket (123a).

5. according to claim 1 to Implement clamping systems described in 3 any one (100), which is characterized in that first sleeve ontology (121) it is circumferentially positioned at described matrix (110) front, and the first locking part (123) is arranged in the first sleeve ontology (121) Rear portion；And second sleeve ontology (131) is circumferentially positioned at described matrix (110) rear portion, and the second locking part (133) setting exists The front of the second sleeve ontology (131).

6. according to claim 1 to Implement clamping systems described in 3 any one (100), which is characterized in that further include that slot handle bores Head clamp assemblies (150) comprising: for clamping or discharging the second clamping part (151) of grooved shank drill, it is plugged in the base In the second through-hole (113) being along inclined direction arranged forward on body (110) side wall；And for driving second clamping part (151) the second motor adjustment portion (152)；Wherein, under the second adaptation pattern, second clamping part (151) be driven and It is stretched in the mounting hole (111) from second through-hole (113).

7. Implement clamping systems (100) according to claim 6, which is characterized in that first locking part (123) with When the second locking part (133) separation unlock, second motor adjustment portion (152) is relative to described matrix (110) along axis To moving backwards, so that driving the second clamping part (151) discharges grooved shank drill；In first locking part (123) and described the When two locking parts (133) cooperation locking, second motor adjustment portion (152) is relative to described matrix (110) axially towards preceding Movement, so that second clamping part (151) clamps grooved shank drill；Wherein, second motor adjustment portion (152) is around described Matrix (110) setting；The axially reciprocating in second motor adjustment portion (152) is converted into second clamping part (151) along the reciprocating motion of second through-hole (113)；Or

Second motor adjustment portion (152) further includes ear, and the mounting hole shutter device (130) further includes axial limiting Slot (137)；The ear radially extends to the axial limiting slot (137) for passing through the mounting hole shutter device (130), and by Control ground moves back and forth in the axial limiting slot (137)；Second clamping part (151) is by second motor adjustment portion (152) ear drives and moves back and forth along second through-hole (113).

8. Implement clamping systems (100) according to claim 6, which is characterized in that setting on the inside of the mounting hole (111) At least two torsion pass keys (111a), and the stopper section (132) setting is on rear side of the torsion pass key (111a)；The torsion pass key (111a) and the stopper section (132) is used to cooperate with the keyway on grooved shank drill.

9. a kind of electric tool, which is characterized in that including the Implement clamping systems as described in claim 1 to 8 any one (100).

10. electric tool according to claim 9, which is characterized in that the electric tool include: electric hammer, impact drill or Hand-held drill.