WO2020220420A1 - 离合装置、钻夹头、动力工具和钻夹头双向转动的方法 - Google Patents

离合装置、钻夹头、动力工具和钻夹头双向转动的方法 Download PDF

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Publication number
WO2020220420A1
WO2020220420A1 PCT/CN2019/088564 CN2019088564W WO2020220420A1 WO 2020220420 A1 WO2020220420 A1 WO 2020220420A1 CN 2019088564 W CN2019088564 W CN 2019088564W WO 2020220420 A1 WO2020220420 A1 WO 2020220420A1
Authority
WO
WIPO (PCT)
Prior art keywords
joint
drill chuck
rear body
clutch device
rotating part
Prior art date
Application number
PCT/CN2019/088564
Other languages
English (en)
French (fr)
Inventor
柳尧亭
Original Assignee
柳尧亭
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 柳尧亭 filed Critical 柳尧亭
Priority to EP19927249.3A priority Critical patent/EP3892406A4/en
Priority to JP2021548644A priority patent/JP7274593B2/ja
Priority to CA3126169A priority patent/CA3126169C/en
Priority to US17/423,783 priority patent/US20220118528A1/en
Priority to KR1020217024302A priority patent/KR102565775B1/ko
Publication of WO2020220420A1 publication Critical patent/WO2020220420A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
    • B23B31/123—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis with locking arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
    • B23B31/1246—Jaws movement actuated by a bolt with conical screw-thread
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
    • B23B47/28—Drill jigs for workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/12—Adapters for drills or chucks; Tapered sleeves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/044—Clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/07—Gears
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
    • B23B31/1253—Jaws movement actuated by an axially movable member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17615—Obliquely guided reciprocating jaws
    • Y10T279/17641—Threaded central cone and jaw
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/32—Means to prevent jaw loosening

Definitions

  • This application relates to the technical field of drill chucks, in particular to a clutch device, a drill chuck, a power tool, and a method for bidirectional rotation of the drill chuck.
  • the purpose of this application includes providing a clutch device, drill chuck, power tool, and a method for bidirectional rotation of the drill chuck, so as to solve the problem that the self-tightening drill chuck in the prior art is in a vibrating working state or in an idling state When it starts suddenly and the idling rotation direction is the direction of loosening the drill tool, it is easy to loosen the drill tool and even cause the technical problem of the drill tool falling off the drill chuck.
  • the present application provides a clutch device, which includes a return elastic member, a transmission assembly, and a rotating part;
  • the transmission assembly includes at least two oppositely arranged engaging parts, one of which can be connected to the precursor of the drill chuck Synchronous rotation, the other joint can rotate synchronously with the rear body of the drill chuck; the joint between the two joints can make the front body and the rear body rotate synchronously;
  • the rotation of the rotating part in the first direction can compress the return elastic member to disconnect the two joint parts; the rotation of the rotating part in the second direction can make the compressed
  • the return elastic member is reset to make the two joints joint.
  • the two joints are connected or disconnected by a tooth structure
  • the joint may be a sheet structure
  • the tooth structure is a plurality of pieces provided on a sheet surface of the sheet structure. Teeth, and the plurality of teeth are distributed on the one surface in a circular shape.
  • the clutch device further includes a back cover, the back cover is used for a fixed connection with the back body, and the connection between the back cover and the back body may be interference fit or key connection .
  • it further includes a triggering member, and the rotation of the rotating portion enables the triggering member to push one of the joint portions to move, so that the elastic return member can be compressed or reset.
  • the return elastic member is located on the outer side of one of the joint portions, and the inner sides of the two joint portions are opposite.
  • the number of the joints is two, and the two joints are respectively a first joint and a second joint;
  • the elastic return part is located outside the second joint part, and the second joint part is located between the elastic return part and the first joint part; or the elastic return part is located in the first joint
  • the first joint part is located between the return elastic member and the second joint part.
  • the first joint part is fixedly connected to the front body, and the second joint part can be connected to the rear body along the Axial movement.
  • the trigger member includes a lever; the rotation of the rotating part in the first direction enables the lever to pry the second joint part to move along the axial direction of the rear body, so that the first The joint is disconnected from the second joint.
  • the trigger further includes a connecting rod fixed on the rotating part, and the connecting rod extends along the axial direction of the rotating part, and the connecting rod is provided with a contact;
  • the lever includes The first raised portion and the second raised portion connected to the first raised portion, and the first raised portion and the second raised portion are arranged at an angle.
  • the lever is rotatably installed in the circumferential direction of the first joint part through a pin;
  • the rotating part is a sleeve-like structure, and the inner surface of the sleeve-like structure is provided with a protruding block for Push the lever to rotate around the pin shaft.
  • a positioning hole is opened on the first joint portion, and the lever includes an insertion portion and a prying portion; the length extension direction of the insertion portion and the length extension direction of the prying portion are arranged at an angle ,
  • the inserting part is inserted into the positioning hole, the rotating part is a sleeve-like structure, and the inner surface of the sleeve-like structure is provided with a protruding block for pushing the inserting part in the positioning Shake in the hole to move the prying part.
  • the first joint part can move along the axial direction of the front body, and the second joint part and the rear body Fixed connection.
  • the trigger includes a connecting rod fixed on the rotating part, and the connecting rod extends along the axial direction of the rotating part, and the connecting rod is provided with a contact; the first engagement The surface of the part is provided with a contact socket; the contact can enter or exit the contact socket with the rotation of the rotating part.
  • the trigger includes a follower portion and a connecting rod fixed on the follower portion, and the connecting rod extends along the axial direction of the following portion, and a contact is provided on the connecting rod Threaded transmission between the follower portion and the rotating portion;
  • the front body is provided with a connecting rod guide groove in the circumferential direction for making the connecting rod along the length of the connecting rod guide groove movement.
  • the trigger member includes a lever; the rotation of the rotating part in the first direction enables the lever to pry the first joint part to move along the axial direction of the precursor, so that the first The joint is disconnected from the second joint.
  • a positioning hole is opened on the first joint portion, and the lever includes an insertion portion and a prying portion; the length extension direction of the insertion portion and the length extension direction of the prying portion are arranged at an angle ,
  • the inserting part is inserted into the positioning hole, the rotating part is a sleeve-like structure, and the inner surface of the sleeve-like structure is provided with a protruding block for pushing the inserting part in the positioning Shake in the hole to move the prying part.
  • the present application also provides a drill chuck, which includes a front body, a rear body, a clamping jaw, and the clutch device; the rear body can rotate relative to the front body, so that the rear body can drive the The clamping jaw moves to clamp and loosen the drill tool installed on the drill chuck; one of the joints is connected with the front body, and the other joint is with the rear body Connected.
  • the application also provides a power tool, which includes a drive shaft and the drill chuck; the drive shaft is connected with the rear body and is used to drive the rear body to rotate.
  • the present application also provides a method for bidirectional rotation of a drill chuck.
  • the drill chuck includes a rear body, a front body, and a clamping jaw.
  • the method includes: enabling the rear body to rotate relative to the front body to enable The rear body can drive the clamping jaw to move; a clutch device is provided between the rear body and the front body to engage or disconnect the rear body and the front body, wherein the clutch device It includes a return elastic member, a transmission assembly and a rotating part; the transmission assembly includes at least two oppositely arranged engagement parts, one of which can rotate synchronously with the precursor of the drill chuck, and the other Rotate synchronously with the rear body of the drill chuck; the joint between the two joints can make the front body and the rear body rotate synchronously; the rotation of the rotating part in the first direction can make The elastic return piece is compressed to disconnect the two engagement portions; the rotation of the rotating portion in the second direction can reset the compressed elastic return piece so that the two The joints are joined to each other.
  • the clutch device, drill chuck, power tool, and method for bidirectional rotation of the drill chuck provided in the present application can realize the joining or disconnection between two oppositely arranged joints by rotating the rotating part, so that when the After one joint can be set to rotate synchronously with the front body of the drill chuck, and the other joint can be set to rotate synchronously with the rear body of the drill chuck, the rotating and rotating part can realize the joint between the front body and the rear body.
  • Disconnect so that when the front body and the rear body are in the engaged state, when the drill chuck is in a vibrating working state or is suddenly started in an idling state, it helps to ensure that the drill on the drill chuck has the stability of installation and avoids In case of loosening or falling off, in addition, the front body and the rear body are connected to realize the bidirectional rotation of the drill chuck to drive the drill tool to perform bidirectional work, and the drill tool can be replaced more reliably, easily, simply and quickly .
  • Figure 1 is an assembly diagram of a gear self-tightening drill chuck provided by an embodiment of this application (without the back cover);
  • Figure 2 is a schematic structural view of the gear self-tightening drill chuck in Figure 1 from another perspective;
  • Figure 3 is a cross-sectional view along line A-A in Figure 2;
  • Figure 4 is a schematic structural view of the precursor of the gear self-tightening drill chuck in Figure 1;
  • FIG. 5 is a schematic diagram of the structure of the rotating part of the clutch device in FIG. 1;
  • Fig. 6 is a schematic structural view of a second joint of the clutch device in Fig. 1;
  • FIG. 7 is a schematic structural diagram of the lever of the clutch device in FIG. 1;
  • Figure 8 is an exploded view of a gear self-tightening drill chuck provided by an embodiment of the application.
  • Figure 9 is an exploded view of a flat-jaw self-tightening drill chuck provided by an embodiment of the application.
  • Figure 10 is an assembly diagram of a flat-jaw self-tightening drill chuck provided by an embodiment of the application (without the back cover);
  • Figure 11 is an assembly diagram of the internally threaded self-tightening drill chuck provided by an embodiment of the application (without installing the back cover);
  • Figure 12 is an exploded view of a gear self-tightening drill chuck provided by an embodiment of the application.
  • Figure 13 is a cross-sectional view of a gear self-tightening drill chuck provided by an embodiment of the application;
  • Figure 14 is an assembly diagram of a gear self-tightening drill chuck provided by an embodiment of the application (without the back cover);
  • FIG. 15 is a schematic structural diagram of the lever of the clutch device in FIG. 12;
  • Figure 16 is an assembly diagram of a flat-jaw self-tightening drill chuck provided by an embodiment of the application (without the back cover);
  • Figure 17 is an exploded view of a flat-jaw self-tightening drill chuck provided by an embodiment of the application;
  • Figure 18 is an exploded view of an internally threaded self-tightening drill chuck provided by an embodiment of the application;
  • Figure 19 is an assembly diagram of an internally threaded self-tightening drill chuck provided by an embodiment of the application (without installing the back cover);
  • Figure 20 is an assembly diagram of a gear self-tightening drill chuck provided by an embodiment of the application (without the back cover);
  • 21 is a cross-sectional view of a gear self-tightening drill chuck provided by an embodiment of the application.
  • FIG. 22 is a schematic diagram of the structure of the lever of the clutch device in FIG. 20;
  • Figure 23 is an exploded view of a gear self-tightening drill chuck provided by an embodiment of the application.
  • Figure 24 is an exploded view of a flat-jaw self-tightening drill chuck provided by an embodiment of the application;
  • Figure 25 is an assembly diagram of a flat-jaw self-tightening drill chuck provided by an embodiment of the application (without the back cover);
  • Figure 26 is an assembly diagram of the internally threaded self-tightening drill chuck provided by an embodiment of the application (without installing the back cover);
  • Figure 27 is an exploded view of an internally threaded self-tightening drill chuck provided by an embodiment of the application.
  • Figure 28 is an exploded view of a gear self-tightening drill chuck provided by an embodiment of the application.
  • Figure 29 is an assembly diagram of a gear self-tightening drill chuck provided by an embodiment of the application (without the sleeve body installed);
  • Figure 30 is a cross-sectional view of a gear self-tightening drill chuck provided by an embodiment of the application.
  • FIG. 31 is a schematic diagram of the structure of the second joint of the clutch device in FIG. 28;
  • FIG. 33 is a schematic structural diagram of a second joint of the clutch device in FIG. 33;
  • Figure 34 is an exploded view of a gear self-tightening drill chuck provided by an embodiment of the application.
  • Figure 35 is an exploded view of a flat-jaw self-tightening drill chuck provided by an embodiment of the application;
  • Figure 36 is a cross-sectional view of a flat-jaw self-tightening drill chuck provided by an embodiment of the application;
  • Figure 37 is a cross-sectional view of an internally threaded self-tightening drill chuck provided by an embodiment of the application.
  • Figure 38 is an exploded view of the internally threaded self-tightening drill chuck provided by an embodiment of the application.
  • Figure 39 is an exploded view of a gear self-tightening drill chuck provided by an embodiment of the application.
  • FIG. 40 is a cross-sectional view of a gear self-tightening drill chuck provided by an embodiment of the application.
  • 41 is a schematic diagram of the structure of the rotating part of the clutch device in FIG. 39;
  • Figure 42 is a schematic structural view of the fixing sleeve of the gear self-tightening drill chuck in Figure 39;
  • FIG. 43 is a schematic structural diagram of a second joint of the clutch device in FIG. 39;
  • Fig. 44 is a schematic diagram of the first state in which the fixed sleeve and the rotating part in Fig. 39 are matched;
  • FIG. 45 is a schematic diagram of the second state in which the fixing sleeve and the rotating part in FIG. 39 are matched;
  • Figure 46 is a cross-sectional view of an internally threaded self-tightening drill chuck provided by an embodiment of the application;
  • Figure 47 is an exploded view of the internally threaded self-tightening drill chuck provided by an embodiment of the application.
  • Fig. 48 is an exploded view of an internally threaded self-tightening drill chuck provided by an embodiment of the application (without the rear sleeve installed).
  • Connected, or integrally connected it can be a mechanical connection, it can be a direct connection, it can also be indirectly connected through an intermediate medium, and it can be a connection between two components.
  • Connected, or integrally connected it can be a mechanical connection, it can be a direct connection, it can also be indirectly connected through an intermediate medium, and it can be a connection between two components.
  • the embodiment of the present application provides a clutch device, which can be applied to a self-tightening drill chuck.
  • the self-tightening drill chuck can be a gear self-tightening drill chuck or a flat jaw self-tightening Drill chuck, internal thread self-tightening drill chuck or external thread self-tightening drill chuck.
  • the clutch device includes a return elastic member 216, a transmission assembly and a rotating part 203;
  • the transmission assembly includes at least two oppositely arranged joints, one of which can rotate synchronously with the front body 101 of the drill chuck, and the other can Rotate synchronously with the rear body 100 of the drill chuck; the joint between the two joint parts can make the front body 101 and the rear body 100 rotate synchronously; the rotation of the rotating part 203 in the first direction can make the return elastic member 216 be Compression to disconnect the two joints; the rotation of the rotating part 203 in the second direction can reset the compressed return elastic member 216, so that the two joints are joined.
  • the working principle of the gear self-tightening drill chuck is: the driving bevel gear 108 on the rear body 100 drives the driven bevel gear 105 installed on the front body 101 to rotate, and the rotation of the driven bevel gear 105 drives the clamping jaw 102 along the front body
  • the clamping jaw slide 103 on the 101 moves to realize clamping or unclamping of the drill inserted in the drill receiving hole of the precursor 101.
  • the working principle of the flat-jaw self-tightening drill chuck is as follows: the rear body 100 drives the driving part 217 with an external thread structure to rotate, and the driving part 217 drives the jaw 102 connected to it to move along the jaw slide 103 on the front body 101.
  • the working principle of the internal thread self-tightening drill chuck is: the external thread structure of the driving part 217 on the rear body 100 cooperates with the thread structure on the clamping jaw 102 to realize transmission, so that when the rear body 100 rotates, the clamping jaw 102 can be realized Move along the gripper slide 103 on the front body 101.
  • the number of joints is two.
  • the return elastic member 216 may be a wave washer, and the rotating part 203 has a sleeve-like structure.
  • the transmission assembly includes two oppositely arranged joints, the two joints can be joined or disconnected with each other, and the two joints can be joined or disconnected by a tooth structure, and the joints can be sheet-like structures ,
  • the tooth structure is a plurality of teeth 206 arranged on one surface of the sheet structure, and the plurality of teeth are distributed on the surface in a circular shape, and the teeth may be ratchet teeth.
  • the first direction is the loosening direction, and the loosening direction is the rotation direction of the rotating part 203 when the drill tool on the drill chuck can be loosened;
  • the second direction is the clamping direction, and the clamping direction can clamp the drill chuck
  • the two joints are the first joint 201 and the second joint 202 respectively.
  • the second joint 202 After the rotating part 203 is rotated by a certain angle in the clamping direction, the second joint 202 is engaged with the first joint 201 under the action of the return elastic member 216, thereby preventing the drill chuck from being The drill tool is loosened; after the rotating part 203 rotates a certain angle in the loosening direction, the second joint 202 is disconnected from the first joint 201, so that the drill on the drill chuck can be loosened.
  • the return elastic member 216 is a wave spring washer.
  • the clamping jaw 102 of the drill chuck clamps the drill, from the working end of the drill (for example, when the drill is a drill, the working end of the drill can drill holes in the object) to the direction of the drill chuck
  • the counterclockwise rotation is the forward rotation of the drill chuck
  • the clockwise rotation is the reverse rotation of the drill chuck.
  • the rear body 100 rotates forward relative to the front body 101 to realize the clamping of the drill tool by the clamping jaw 102, and the rear body 100 reverses relative to the front body 101 to realize the loosening of the drill tool by the clamping jaw 102.
  • the forward rotation direction of the rear body 100 and the forward rotation direction of the front body 101 are the same as the forward rotation direction of the drill chuck; the reverse direction of the rear body 100 and the reverse direction of the front body 101 are the same as the reverse direction of the drill chuck the same.
  • the rear body 100 can rotate about the axis of the rear body 100 relative to the front body 101, and the rear body 100 and the front body 101 are coaxially arranged.
  • the clamping direction of the rotating part 203 is the same as the reverse direction of the drill chuck, and the loosening direction of the switch sleeve is the same as the forward rotation direction of the drill chuck.
  • the rear body 100 of the drill chuck rotates forward, so that the clamping jaw 102 can clamp the drill tool, and the rear body 100 is reversed to realize the loosening of the drill tool by the clamping jaw 102; After the clamping jaw 102 clamps the drill tool, the conventional positive rotation can be realized.
  • the rear body 100 and the front body 101 rotate forward together; when the clamping jaw 102 clamps the drill tool, After the rear body 100 and the front body 101 are joined by a clutch device, the rear body 100 and the front body 101 are connected to each other in a relatively static state through the clutch device, that is, the rear body 100 and the front body 101 are reversed together, thereby passing the clutch
  • the device realizes the two-way rotation of the drill chuck to drive the drilling tool to perform two-way work, and the user experience is better.
  • the return elastic member 216 can also be a spring or the like; the material of the wave gasket can be metal.
  • the clutch device further includes a back sleeve 121, which is used for a fixed connection with the back body 100, and the connection between the back sleeve 121 and the back body 100 can be interference fit or key connection.
  • the rear body 100 can be driven to rotate by rotating the rear sleeve 121.
  • the clutch device facilitates the engagement or disconnection between the two oppositely disposed joints by rotating the rotating part 203, so that when one of the joints can be synchronized with the precursor 101 of the drill chuck After the other joint part can be rotated synchronously with the rear body 100 of the drill chuck, the rotating part 203 can realize the joint or disconnection between the front body 101 and the rear body 100, so that the front body 101 and the rear body
  • the 100 is engaged, when the drill chuck is in a vibrating working state or is suddenly started in an idling state, it is helpful to ensure that the drill on the drill chuck has the stability of installation, and avoids loosening or falling off.
  • the front body 101 and the rear body 100 are joined, and the drill chuck can be rotated in two directions, so as to drive the drilling tool to perform bidirectional work.
  • the clutch device further includes a triggering member, and the rotation of the rotating part 203 can cause the triggering member to push one of the engaging parts to move, so that the return elastic member 216 can be compressed or reset.
  • the rotation of the rotating part 203 can enable the elastic return member 216 to be compressed or reset; when the elastic return member 216 is compressed, That is, it is used to realize the disconnection between the two oppositely arranged joints, and when the compressed return elastic member 216 is reset, it is also used to realize the joint between the two oppositely arranged joints.
  • the elastic return member 216 is located on the outer side of one of the joints, and the inner sides of the two joints are opposite.
  • the tooth structure is located inside the joint.
  • Both the first joining part 201 and the second joining part 202 may have a sheet-like structure.
  • This embodiment also provides a method for two-way rotation of a drill chuck.
  • the drill chuck includes a rear body 100, a front body 101, and a clamping jaw 102.
  • the method includes: enabling the rear body 100 to rotate relative to the front body 101 to enable The rear body 100 can drive the clamping jaw 102 to move; a clutch device is provided between the rear body 100 and the front body 101 to engage or disconnect the rear body 100 and the front body 101, wherein the clutch device includes a return elastic member 216, a transmission Assembly and rotating part 203;
  • the transmission assembly includes at least two oppositely arranged joints, one of which can rotate synchronously with the front body 101 of the drill chuck, and the other can rotate synchronously with the rear body 100 of the drill chuck;
  • the joint between the two joints can make the front body 101 and the rear body 100 rotate synchronously; the rotation of the rotating part 203 in the first direction can compress the return elastic member 216 so that the two joints Disconnected; the rotation of the rotating part 203 in the second
  • the elastic return member 216 is located outside the second joint 202, and the second joint 202 is located between the elastic return member 216 and the first joint 201, and the back sleeve 121 is also used for backing.
  • the position elastic member 216 performs a position limit, so that the return elastic member 216 can be compressed or reset.
  • the return elastic member 216 when the return elastic member 216 is located outside the second joint 202, the first joint 201 and the front body 101 are fixedly connected by the screw 111, and the second joint 202 can move along the axial direction with the rear body 100 ,
  • the rear end 116 of the rear body 100 is provided with a strip groove 133 extending in the axial direction thereof in the circumferential direction, and the second joint 202 is sleeved on the rear end 116 of the rear body 100.
  • the shaft hole of the second joint 202 The inner wall is provided with a positioning key 134 that cooperates with the strip-shaped groove 133 on the rear body 100.
  • the positioning key 134 and the hole wall of the shaft hole are an integral structure, so that the rear body 100 and the second joint 202 are in the circumferential direction.
  • the upper part is relatively fixed and can be displaced in the axial direction.
  • the back sleeve 121 is also used to limit the return elastic member 216, and the return elastic member 216 is restricted by the back sleeve 121, which can achieve two purposes.
  • the first purpose is to enable the return elastic member 216 to be compressed;
  • the second purpose is to make the second joint 202 move in the direction of the first joint 201 when the compressed return elastic member 216 is reset, so as to achieve the purpose of joining the second joint 202 and the first joint 201 .
  • the rear body 100 and the second joint 202 can also be connected by a special-shaped hole structure to realize the relative fixation of the rear body 100 and the second joint 202 in the circumferential direction, but can be When displacement occurs, the irregular hole can be a round hole or a square hole.
  • the trigger includes a lever 208; the rotation of the rotating part 203 in the first direction enables the lever 208 to pry the second joint 202 along the axis of the rear body 100 Moving forward (that is, the lever 208 moves the second engaging portion 202 away from the first engaging portion 201) to disconnect the first engaging portion 201 and the second engaging portion 202.
  • the rotation of the rotating portion 203 in the second direction enables the return elastic member 216 to be reset, so that the second engaging portion 202 moves in a direction close to the first engaging portion 201, so that the first engaging portion 201 and the second engaging portion 202 are To join.
  • the trigger further includes a connecting rod 205 fixed on the rotating part 203, and the connecting rod 205 extends along the axial direction of the rotating part 203, and the connecting rod 205 is provided with a contact 204;
  • the lever 208 includes a first upturned part 220 and the second raised portion 221 connected to the first raised portion 220, and the first raised portion 220 and the second raised portion 221 are arranged at an angle.
  • the angle formed between the first raised portion 220 and the second raised portion 221 is greater than 90 degrees, and the angle may be 120 degrees to 170 degrees, etc., for example, 150 degrees or 160 degrees.
  • the lever 208 also includes a rotating convex bar 209, which is basically located at the junction of the first upturned portion 220 and the second upturned portion 221; the rotating convex bar 209 is in contact with the rear end 116 of the front body 101, and the lever 208 The number is 3.
  • the number of connecting rods 205 is three.
  • the contact 204 has a triangular structure 308, and a vertex of the triangular structure 308 abuts on the first raised portion 220 or the second raised portion 221.
  • the rotating protrusion 209 may have a cylindrical structure with at least an arc surface.
  • the rotating part 203 rotates in the first direction, the top corner of the triangular structure on the contact 204 moves from the first upturned part 220 to the second upturned part 221. Due to the arc on the rotating convex strip 209, the first A raised portion 220 and a second raised portion 221 rotate around the rotating protrusion 209, so that the second joint 202 can move along the axial direction of the rear body 100, so that the first joint 201 and the second joint 202 is disconnected.
  • This embodiment also provides a drill chuck, which includes a front body 101, a rear body 100, a clamping jaw 102, and the clutch device in this embodiment; the rear body 100 can rotate relative to the front body 101 so that the rear body 100 can The clamping jaw 102 is driven to move to clamp and loosen the drill tool installed on the drill chuck; the first joint 201 is connected with the front body 101, and the second joint 202 is connected with the rear body 100.
  • the drilling tool can be a drill bit, a honing head, or a boring head.
  • the front body 101 is provided with a receiving groove 222 for limiting the connecting rod 205 in the circumferential direction.
  • the groove width of the receiving groove 222 is larger than the width of the connecting rod 205, so that the connecting rod 205 can be rotated by a certain angle with the rotating part 203 to achieve The purpose of disconnecting or joining the first joint 201 and the second joint 202.
  • a spring groove 223 may be provided in a receiving groove 222,
  • the spring groove 223 is installed with the return spring 118, one end of the return spring 118 abuts against one end of the spring groove 223 in the longitudinal direction, the other end of the return spring 118 abuts against the connecting rod 205, and the extension direction of the return spring 118 It is perpendicular to the length direction of the receiving groove 222; the length direction of the receiving groove 222 is parallel to the axial direction of the precursor 101.
  • the rotating portion 203 is a sleeve-like structure that is sleeved on the front body 101 and the sleeve-like structure is restricted by the shoulder 224 on the front body 101 to prevent the sleeve-like structure from falling off the front body 101.
  • the rear end 116 of the rear body 100 passes through the first joint portion 201 and is arranged in a gap between the rear body 100 and the first joint.
  • the rear body 100 After the rear end 116 of the rear body 100 passes through the first joint portion 201, the rear body 100 The rear end 116 is connected with the second joint 202 to realize the relative fixation of the rear body 100 and the second joint 202 in the circumferential direction, and can be displaced in the axial direction; the rear end 116 of the rear body 100 passes through After the second joint 202, it is fixedly connected with the rear sleeve 121.
  • the rear body 100 has a shoulder 224 for preventing the rear body 100 from falling out of the front body 101 after the rear end 116 of the rear body 100 penetrates the first joint 201.
  • the end surface of the rear end 116 of the front body 101 is also provided with a rotating groove 210 in which the rotating convex bar 209 is located.
  • the drill chuck may be a self-tightening drill chuck
  • the self-tightening drill chuck may be a gear self-tightening drill chuck, a flat claw self-tightening drill chuck, or an internal thread self-tightening drill chuck.
  • the trigger includes a lever 208; the rotation of the rotating part 203 in the first direction enables the lever 208 to pry the second engaging part 202 to move in the axial direction of the rear body 100 (ie The lever 208 moves the second engaging portion 202 in a direction away from the first engaging portion 201) to disconnect the first engaging portion 201 and the second engaging portion 202.
  • the rotation of the rotating portion 203 in the second direction enables the return elastic member 216 to be reset, so that the second engaging portion 202 moves in a direction close to the first engaging portion 201, so that the first engaging portion 201 and the second engaging portion 202 are To join.
  • the lever 208 is rotatably mounted on the circumference of the first joint portion 201 through a pin 225; the rotating portion 203 is a sleeve-like structure, and the inner surface of the sleeve-like structure is provided with a protrusion 231 for pushing the lever 208 Rotate around the pin 225.
  • the first engaging portion 201 has a plurality of avoiding grooves 226 in the circumferential direction
  • the pin shaft 225 is on the groove wall of the avoiding groove 226, and the axial direction of the pin shaft 225 may be parallel to the radial direction of the rotating portion 203.
  • the lever 208 is provided with a pin hole 227 for the pin shaft 225 to pass through.
  • the lever 208 includes a main body part 228 and an additional part 229, and the pin hole 227 is located on the main body part 228.
  • the additional portion 229 is used for contacting the second engaging portion 202 to pry the second engaging portion 202 to move.
  • the rotating part 203 When the rotating part 203 rotates in the direction that realizes the disconnection of the first joint 201 and the second joint 202, the rotating part 203 applies force to the main body part 228 of the lever 208, the lever 208 rotates around the pin 225, and the additional part 229 The edge abuts against the second engaging portion 202 to achieve the purpose of prying the second engaging portion 202; when the rotating portion 203 rotates in the direction that the first engaging portion 201 and the second engaging portion 202 are engaged, the return position
  • the elastic member 216 acts to force the second engaging portion 202 to move in the direction where the first engaging portion 201 is located, and the second engaging portion 202 applies a force to the additional portion 229, thereby causing the lever 208 to rotate again to reset the lever 208.
  • the number of avoidance grooves 226, the number of levers 208, and the number of protruding blocks 231 are equal, and all can be three.
  • This embodiment also provides a drill chuck, which includes a front body 101, a rear body 100, a clamping jaw 102, and the clutch device in this embodiment; the rear body 100 can rotate relative to the front body 101 so that the rear body 100 can The clamping jaw 102 is driven to move to clamp and loosen the drill tool installed on the drill chuck; the first joint 201 is connected with the front body 101, and the second joint 202 is connected with the rear body 100.
  • the drilling tool can be a drill bit, a honing head, or a boring head.
  • the front body 101 is provided with a receiving groove 222 for accommodating the lever 208 and the protrusion 231 in the circumferential direction, and the width of the receiving groove 222 is greater than the sum of the width of the main body 228 of the lever 208 and the width of the protrusion 231, so that when rotating When the portion 203 rotates, the lever 208 can be rotated in the receiving groove 222 to achieve the purpose of disconnecting or coupling the first joint 201 and the second joint 202.
  • the rotating part 203 is a sleeve-like structure that is sleeved on the front body 101 and the sleeve-like structure is restricted by the shoulder 224 on the front body 101 to prevent the sleeve-like structure from falling off the front body 101.
  • the rear end 116 of the rear body 100 passes through the first joint portion 201 and is arranged in a gap between the rear body 100 and the first joint. After the rear end 116 of the rear body 100 passes through the first joint portion 201, the rear body 100 The rear end 116 is connected with the second joint 202 to realize the relative fixation of the rear body 100 and the second joint 202 in the circumferential direction, and can be displaced in the axial direction; the rear end 116 of the rear body 100 passes through After the second joint 202, it is fixedly connected with the rear sleeve 121.
  • the rear body 100 has a shoulder 224 for preventing the rear body 100 from falling out of the front body 101 after the rear end 116 of the rear body 100 penetrates the first joint 201.
  • the drill chuck may be a self-tightening drill chuck
  • the self-tightening drill chuck may be a gear self-tightening drill chuck, a flat claw self-tightening drill chuck, or an internal thread self-tightening drill chuck.
  • the trigger includes a lever 208; the rotation of the rotating part 203 in the first direction can make the lever 208 pry the second engaging part 202 to move along the axial direction of the rear body 100 (ie The lever 208 moves the second engaging portion 202 in a direction away from the first engaging portion 201) to disconnect the first engaging portion 201 and the second engaging portion 202.
  • the rotation of the rotating portion 203 in the second direction enables the return elastic member 216 to be reset, so that the second engaging portion 202 moves in a direction close to the first engaging portion 201, so that the first engaging portion 201 and the second engaging portion 202 are To join.
  • the rotating part 203 has a sleeve-like structure.
  • a positioning hole 234 is opened on the first joint portion 201, and the lever 208 includes an insertion portion 232 and a prying portion 233; the length extension direction of the insertion portion 232 and the length extension direction of the prying portion 233 are arranged at an angle,
  • the inserting part 232 is inserted into the positioning hole 234, the rotating part 203 is a sleeve-like structure, and the inner surface of the sleeve-like structure is provided with a protruding block 231 for pushing the inserting part 232 to swing in the positioning hole 234 to make the prying The moving part 233 moves.
  • the positioning hole 234 may be a rectangular hole. After the insertion portion 232 is inserted into the rectangular hole, the insertion portion 232 is fitted with the rectangular hole clearance fit, so that the insertion portion 232 can swing in the rectangular square hole. Both the number of positioning holes 234 and the number of levers 208 can be multiple, such as three, so that the movement of the second joint 202 can be smooth.
  • the rotating part 203 When the rotating part 203 rotates in a direction that realizes the disconnection of the first joint 201 and the second joint 202, the rotating part 203 applies force to the insertion part 232 of the lever 208, thereby lifting the end of the lever 233 To abut against the second engaging portion 202 to achieve the purpose of prying the second engaging portion 202; when the rotating portion 203 rotates in the direction to realize the engagement of the first engaging portion 201 and the second engaging portion 202, due to the elastic return
  • the member 216 acts to force the second engaging portion 202 to move in the direction where the first engaging portion 201 is located, and the second engaging portion 202 applies a force to the prying portion 233 to reset the lever 208.
  • This embodiment also provides a drill chuck, which includes a front body 101, a rear body 100, a clamping jaw 102, and the clutch device in this embodiment; the rear body 100 can rotate relative to the front body 101 so that the rear body 100 can The clamping jaw 102 is driven to move to clamp and loosen the drill tool installed on the drill chuck; the first joint 201 is connected with the front body 101, and the second joint 202 is connected with the rear body 100.
  • the drilling tool can be a drill bit, a honing head, or a boring head.
  • the front body 101 is provided with a receiving groove 222 for receiving the protruding block 231 in the circumferential direction, and the width of the receiving groove 222 is greater than the width of the protruding block 231, so that when the rotating part 203 rotates, the protruding block 231 can be placed in
  • the accommodating groove 222 moves in order to achieve the purpose of disconnecting or joining the first joint 201 and the second joint 202.
  • the rotating part 203 is a sleeve-like structure that is sleeved on the front body 101 and the sleeve-like structure is restricted by the shoulder 224 on the front body 101 to prevent the sleeve-like structure from falling off the front body 101.
  • the rear end 116 of the rear body 100 passes through the first joint portion 201 and is arranged in a gap between the rear body 100 and the first joint. After the rear end 116 of the rear body 100 passes through the first joint portion 201, the rear body 100 The rear end 116 is connected with the second joint 202 to realize the relative fixation of the rear body 100 and the second joint 202 in the circumferential direction, and can be displaced in the axial direction; the rear end 116 of the rear body 100 passes through After the second joint 202, it is fixedly connected with the rear sleeve 121.
  • the rear body 100 has a shoulder 224 for preventing the rear body 100 from falling out of the front body 101 after the rear end 116 of the rear body 100 penetrates the first joint 201.
  • the drill chuck may be a self-tightening drill chuck
  • the self-tightening drill chuck may be a gear self-tightening drill chuck, a flat claw self-tightening drill chuck, or an internal thread self-tightening drill chuck.
  • the elastic return member 216 is located outside the first joint 201, and the first joint 201 is located between the elastic return member 216 and the second joint 202.
  • the clutch device also includes an end cover 126, and the return elastic member 216 is compressed or reset by the rotating part 203.
  • the return elastic member 216 is located outside the first joint part 201, the first joint part 201 can move along the axial direction of the front body 101, and the second joint part 202 is fixedly connected to the rear body 100; since the front body and the rear body are the same
  • the shaft is arranged, and the axial movement of the first engagement portion along the front body is equivalent to the axial movement of the first engagement portion along the rear body.
  • the end cover 126 includes a disc portion 301 and a shaft convex portion 302 connected to the disc portion 301; the disc portion 301 is fixedly connected to the front body 101 by a screw 111; the end cover 126 is provided with a rear body 100 A shaft hole through which the end 116 passes.
  • the return elastic member 216 is sleeved outside the shaft protrusion 302 of the end cover 126, and the outer peripheral surface of the shaft protrusion 302 is provided with a plurality of strip grooves 133 extending in the axial direction of the shaft protrusion 302, and the first joint 201
  • the inner wall of the shaft hole is provided with a positioning key 134 that cooperates with the strip groove 133 on the shaft convex portion 302.
  • the positioning key 134 and the hole wall of the shaft hole of the first joint 201 are an integral structure, so as to realize the shaft convex
  • the portion 302 and the first joining portion 201 are relatively fixed in the circumferential direction, and can be displaced in the axial direction.
  • the back cover includes a cover body 309 and a cover cover. The cover and the cover body can be fixedly connected by interference fit.
  • the second joint 202 and the cover cover of the back cover 121 are an integral structure.
  • the rear end 116 of the rear body 100 After passing through the shaft hole of the shaft protrusion 302, it is inserted into the shaft hole of the second joint 202, and the rear end 116 of the rear body 100 and the second joint 202 are connected by interference fit, key connection or
  • the pin connection is a fixed connection.
  • the return elastic member 216 is located between the disc portion 301 of the end cover 126 and the first joint portion 201.
  • the trigger includes a lever 208; the rotation of the rotating part 203 in the first direction enables the lever 208 to pry the first engaging part 201 to move along the axial direction of the precursor 101 (that is, the lever 208 makes the first engaging part 201 move toward Move away from the second engaging portion 202, even if the first engaging portion moves in a direction close to the rear end of the front body), so that the first engaging portion 201 and the second engaging portion 202 are disconnected.
  • the rotation of the rotating portion 203 in the second direction enables the return elastic member 216 to be reset, so that the first engaging portion 201 moves in a direction approaching the second engaging portion 202, so that the first engaging portion 201 and the second engaging portion 202 are To join.
  • the rotating part 203 has a sleeve-like structure.
  • a positioning hole 234 is opened on the first joint portion 201, and the lever 208 includes an insertion portion 232 and a prying portion 233; the length extension direction of the insertion portion 232 and the length extension direction of the prying portion 233 are arranged at an angle,
  • the inserting part 232 is inserted into the positioning hole 234, the rotating part 203 is a sleeve-like structure, and the inner surface of the sleeve-like structure is provided with a protruding block 231 for pushing the inserting part 232 to swing in the positioning hole 234 to make the prying The moving part 233 moves.
  • the positioning hole 234 may be a rectangular hole. After the insertion portion 232 is inserted into the rectangular hole, the insertion portion 232 is fitted with the rectangular hole clearance fit, so that the insertion portion 232 can swing in the rectangular square hole. Both the number of positioning holes 234 and the number of levers 208 can be multiple, such as three, so that the movement of the first joint 201 can be smooth.
  • the rotating part 203 When the rotating part 203 rotates in the direction that realizes the disconnection of the first joint 201 and the second joint 202, the rotating part 203 applies force to the insertion part 232 of the lever 208, so that one end of the lever 233 is connected to the second The surface of the engaging portion 202 abuts, the other end of the prying portion 233 abuts against the surface of the first engaging portion 201, since the second engaging portion 202 is fixedly connected to the rear body 100, the first engaging portion 201 is in contact with the front body Relative axial displacement can occur because the second engaging portion 202 does not move, and the first engaging portion 201 presses the first engaging portion 201 under the action of the other end of the prying portion 233 to make the first engaging portion forward.
  • This embodiment also provides a drill chuck, which includes a front body 101, a rear body 100, a clamping jaw 102, and the clutch device in this embodiment; the rear body 100 can rotate relative to the front body 101 so that the rear body 100 can The clamping jaw 102 is driven to move to clamp and loosen the drill tool installed on the drill chuck; the first joint 201 is connected with the front body 101, and the second joint 202 is connected with the rear body 100.
  • the drilling tool can be a drill bit, a honing head, or a boring head.
  • a accommodating groove 222 for accommodating the protruding block 231 is opened in the circumference of the front body 101, and the width of the accommodating groove 222 is greater than the sum of the width of the protruding block 231 and the width of the insertion portion, so that when the rotating portion 203 rotates, It is possible to enable the protruding block 231 to move in the receiving groove 222 and the sloshing of the inserting part in the receiving groove, so as to achieve the purpose of disconnecting or joining the first joint 201 and the second joint 202.
  • the rotating portion 203 is a sleeve-like structure that is sleeved on the front body 101 and the sleeve-like structure is restricted by the shoulder 224 on the front body 101 to prevent the sleeve-like structure from falling off the front body 101.
  • the rear end 116 of the rear body 100 passes through the shaft hole of the shaft protrusion 302 of the end cover 126, and a gap is provided between the rear body 100 and the shaft protrusion 302.
  • the rear end 116 of the rear body 100 passes through the shaft of the end cover 126
  • the shaft hole of the convex portion 302 and the rear end 116 of the rear body 100 are connected with the second joint portion 202 to realize a fixed connection between the rear body 100 and the second joint portion 202.
  • the rear body 100 has a shoulder 224, which is used to prevent the rear body 100 from falling out of the front body 101 after the rear end 116 of the rear body 100 penetrates the shaft hole of the shaft protrusion 302, and the rear body 100 is basically not connected with the front body.
  • a relative axial displacement occurs between the bodies 101.
  • the disc portion 301 of the end cover 126 is provided with a plurality of avoiding grooves 226 in the circumferential direction for avoiding the insertion portion of the lever.
  • the width of the avoiding grooves 226 is basically the same as the width of the receiving groove 222, so that the insertion will not be affected. The shaking of the outfit department.
  • the drill chuck may be a self-tightening drill chuck
  • the self-tightening drill chuck may be a gear self-tightening drill chuck, a flat-jaw self-tightening drill chuck or an internal thread self-tightening drill chuck.
  • the self-tightening drill chuck takes the gear self-tightening drill bit as an example.
  • the elastic return member 216 is located outside the first joint 201, and the first joint 201 is located between the elastic return member 216 and the second joint 202.
  • the clutch device also includes an end cover 126, and the return elastic member 216 is compressed or reset by the rotating part 203.
  • the return elastic member 216 is located outside the first joint 201, the first joint 201 can move along the axial direction of the front body 101, and the second joint 202 is fixedly connected to the rear body 100.
  • the end cover 126 includes a disc portion 301 and a shaft convex portion 302 connected to the disc portion 301; the disc portion 301 is fixedly connected to the front body 101 by a screw 111; the end cover 126 is provided with a rear body 100 A shaft hole through which the end 116 passes.
  • the return elastic member 216 is sleeved outside the shaft protrusion 302 of the end cover 126, and the outer peripheral surface of the shaft protrusion 302 is provided with a plurality of strip grooves 133 extending in the axial direction of the shaft protrusion 302, and the first joint 201
  • the inner wall of the shaft hole is provided with a positioning key 134 that cooperates with the strip groove 133 on the shaft convex portion 302.
  • the positioning key 134 and the hole wall of the shaft hole of the first joint 201 are an integral structure, so as to realize the shaft convex
  • the portion 302 and the first joining portion 201 are relatively fixed in the circumferential direction, and can be displaced in the axial direction.
  • the back cover includes a cover body 309 and a cover cover. The cover and the cover body can be fixedly connected by interference fit.
  • the second joint 202 and the cover cover of the back cover 121 are an integral structure.
  • the rear end 116 of the rear body 100 After passing through the shaft hole of the shaft protrusion 302, it is inserted into the shaft hole of the second joint 202, and the rear end 116 of the rear body 100 and the second joint 202 are connected by interference fit, key connection or
  • the pin connection is a fixed connection.
  • the return elastic member 216 is located between the disc portion 301 of the end cover 126 and the first joint portion 201.
  • the trigger includes a connecting rod 205 fixed on the rotating part 203, and the connecting rod 205 extends along the axial direction of the rotating part 203, the connecting rod 205 is provided with a contact 204; the surface of the first joint 201 is provided with Contact socket 235; the contact 204 can enter or exit the contact socket 235 with the rotation of the rotating part 203.
  • the rotating portion 203 has a sleeve-like structure, and the extending direction of the connecting rod 205 is parallel to the axial direction of the sleeve-like structure.
  • One end of the connecting rod 205 is connected to the sleeve structure, and the other end of the connecting rod 205 is provided with a contact 204, the contact 204 has at least a first arc surface 236; the contact socket 235 is located on the inner side 132 of the first joint 201 .
  • the contact socket 235 has a second arc surface that is matched with the first arc surface 236 on the contact 204, that is, the bottom of the contact socket 235 has an arc surface structure.
  • This embodiment also provides a drill chuck, which includes a front body 101, a rear body 100, a clamping jaw 102, and the clutch device in this embodiment; the rear body 100 can rotate relative to the front body 101 so that the rear body 100 can The clamping jaw 102 is driven to move to clamp and loosen the drill tool installed on the drill chuck; the first joint 201 is connected with the front body 101, and the second joint 202 is connected with the rear body 100.
  • the drilling tool can be a drill bit, a honing head, or a boring head.
  • the front body 101 is provided with a plurality of accommodating grooves 222 in the circumferential direction for limiting the connecting rod 205, and the width of the accommodating groove 222 is greater than the width of the connecting rod 205, so that when the rotating part 203 rotates, the connecting rod 205 can be There is a one-corner rotation angle in the receiving groove 222 to achieve the purpose of disconnecting or joining the first joint 201 and the second joint 202.
  • the rotating part 203 is sleeved on the front body 101, and the sleeve-like structure is restricted by the shoulder 224 on the front body 101 to prevent the sleeve-like structure from falling off from the front body 101.
  • the rear end 116 of the rear body 100 passes through the first joint 201 and is provided with a gap between the rear body 100 and the first joint to ensure that the rear body 100 can rotate relative to the first joint 201; the rear body 100 has a shoulder 224 is used to prevent the rear body 100 from falling out of the front body 101 after the rear end 116 of the rear body 100 passes through the first joint 201.
  • the drill chuck may be a self-tightening drill chuck
  • the self-tightening drill chuck may be a gear self-tightening drill chuck, a flat claw self-tightening drill chuck, or an internal thread self-tightening drill chuck.
  • the elastic return member 216 is located outside the first joint 201, and the first joint 201 is located between the elastic return member 216 and the second joint 202.
  • the clutch device also includes an end cover 126, and the return elastic member 216 is compressed or reset by the rotating part 203.
  • the return elastic member 216 is located outside the first joint 201, the first joint 201 can move along the axial direction of the front body 101, and the second joint 202 is fixedly connected to the rear body 100.
  • the end cover 126 includes a disc portion 301 and a shaft convex portion 302 connected to the disc portion 301; the disc portion 301 is fixedly connected to the front body 101 by a screw 111; the end cover 126 is provided with a rear body 100 A shaft hole through which the end 116 passes.
  • the return elastic member 216 is sleeved outside the shaft protrusion 302 of the end cover 126, and the outer peripheral surface of the shaft protrusion 302 is provided with a plurality of strip grooves 133 extending in the axial direction of the shaft protrusion 302, and the first joint 201
  • the inner wall of the shaft hole is provided with a positioning key 134 that cooperates with the strip groove 133 on the shaft convex portion 302.
  • the positioning key 134 and the hole wall of the shaft hole of the first joint 201 are an integral structure, so as to realize the shaft convex
  • the portion 302 and the first joining portion 201 are relatively fixed in the circumferential direction, and can be displaced in the axial direction.
  • the back cover includes a cover body 309 and a cover cover. The cover and the cover body can be fixedly connected by interference fit.
  • the second joint 202 and the cover cover of the back cover 121 are an integral structure.
  • the rear end 116 of the rear body 100 After passing through the shaft hole of the shaft protrusion 302, it is inserted into the shaft hole of the second joint 202, and the rear end 116 of the rear body 100 and the second joint 202 are connected by interference fit, key connection or
  • the pin connection is a fixed connection.
  • the return elastic member 216 is located between the disc portion 301 of the end cover 126 and the first joint portion 201.
  • the rear body 100 has a shoulder 224 for preventing the rear body 100 from falling out of the front body 101 after the rear end 116 of the rear body 100 passes through the end cap 126.
  • the trigger includes a follower 310 and a connecting rod 205 fixed on the follower 310, and the connecting rod 205 extends along the axial direction of the follower 310, and the connecting rod 205 is provided with a contact 204;
  • the part 310 and the rotating part 203 are driven by a thread;
  • the front body 101 is provided with a connecting rod guide groove in the circumferential direction for moving the connecting rod 205 along the length of the connecting rod guide groove.
  • the rotating portion 203 has a sleeve-like structure, and the extending direction of the connecting rod 205 is parallel to the axial direction of the sleeve-like structure.
  • the follower 310 has a sleeve shape.
  • the inner wall of the shaft hole of the rotating part 203 has an internal thread 303, and the outer surface of the follower part 310 has an external thread 304 that matches the internal thread on the rotating part 203.
  • This embodiment also provides a drill chuck, which includes a front body 101, a rear body 100, a clamping jaw 102, and the clutch device in this embodiment; the rear body 100 can rotate relative to the front body 101 so that the rear body 100 can The clamping jaw 102 is driven to move to clamp and loosen the drill tool installed on the drill chuck; the first joint 201 is connected with the front body 101, and the second joint 202 is connected with the rear body 100.
  • the drilling tool can be a drill bit, a honing head, or a boring head.
  • the front body 101 is provided with a plurality of accommodating grooves 222 for limiting the connecting rod 205 in the circumferential direction, so that the follower 310 moves along the axial direction of the front body 101, so that when the rotating part 203 rotates, the follower 310
  • the front body 101 moves in the axial direction, and the contact 204 on the follower 310 can compress or release the return elastic member 216 to achieve the purpose of disconnecting or engaging the first joint 201 and the second joint 202 .
  • the rotating part 203 is sleeved on the front body 101, the front end 115 of the front body 101 is fixed with a fixed sleeve 305, the surface of the fixed sleeve 305 facing the rear end 116 of the front body 101 has a first arc-shaped protrusion 306, and the rotating part
  • the inner wall of the shaft hole of 203 is provided with a second arc-shaped protrusion 307 that cooperates with the first arc-shaped protrusion 306 to limit the angle of rotation of the rotating part 203, that is, the angle of rotation of the rotating part 203 is set at a predetermined Within range.
  • the fixing sleeve 305 and the front end 115 of the front body 101 can be fixedly connected by interference fit or screw 111 connection, and the fixing sleeve 305 can also be used to prevent the rotating part 203 from coming off the front end 115 of the front body 101.
  • the rotating part 203 rotates by a certain angle in the first direction
  • one end of the second arc-shaped protrusion 307 is stopped by one end of the first arc-shaped protrusion 306;
  • the other end of the second arc-shaped protrusion 307 is blocked by the other end of the first arc-shaped protrusion 306.
  • the rear end 116 of the rear body 100 passes through the first joint 201 and is provided with a gap between the rear body 100 and the first joint to ensure that the rear body 100 can rotate relative to the first joint 201; the rear body 100 has a shoulder 224 is used to prevent the rear body 100 from falling out of the front body 101 after the rear end 116 of the rear body 100 passes through the first joint 201.
  • the drill chuck may be a self-tightening drill chuck
  • the self-tightening drill chuck may be a gear self-tightening drill chuck, a flat claw self-tightening drill chuck, or an internal thread self-tightening drill chuck.
  • the embodiment of the present application provides a power tool, which includes a drive shaft and a drill chuck, the drill chuck may be the drill chuck provided in the above embodiment; the drive shaft is connected to the rear body 100 for driving the rear body 100 rotations.
  • the rear body 100 also has an axial threaded hole or a taper hole for connecting with the drive shaft.
  • the clutch device, drill chuck, power tool, and method for bidirectional rotation of the drill chuck provided in the present application advantageously ensure that the drill on the drill chuck has installation stability, avoids loosening or falling off, and also realizes the drill chuck
  • the head rotates in two directions to drive the drilling tool to perform two-way work, and the drilling tool can be replaced more reliably, easily, simply and quickly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)

Abstract

一种离合装置、钻夹头、动力工具和钻夹头双向转动的方法。该离合装置包括回位弹性件（216）、传动组件和转动部（203）；传动组件包括至少两个相对设置的接合部，两个接合部之间的接合能够使前体（101）与后体（100）之间同步转动；转动部（203）沿第一方向的转动能够使回位弹性件（216）被压缩，以使两个接合部之间相断开；转动部（203）沿第二方向的转动能够使被压缩的回位弹性件（216）复位，以使得两个接合部之间相接合。钻夹头包括前体（101）、后体（100）、夹爪（102）以及离合装置；动力工具包括驱动轴及钻夹头。该装置能够保证钻夹头上的钻具更稳定的安装，避免出现松动或脱落的情况，更换钻具更便捷。

Description

离合装置、钻夹头、动力工具和钻夹头双向转动的方法
相关申请的交叉引用
本申请要求于2019年04月28日提交中国专利局的申请号为2019103515375、名称为“离合装置、钻夹头、动力工具和钻夹头双向转动的方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及钻夹头技术领域，尤其是涉及一种离合装置、钻夹头、动力工具和钻夹头双向转动的方法。
背景技术
目前市场上的自紧钻夹头在振动的工作状态或是在空转状态下突然启动，且空转的旋转方向为松开钻具的方向时，容易出现钻具的松动，甚至导致钻具从钻夹头上脱落的情况。
发明内容
本申请的目的包括提供一种离合装置、钻夹头、动力工具和钻夹头双向转动的方法，以解决现有技术中存在的自紧钻夹头在振动的工作状态或是在空转状态下突然启动，且空转的旋转方向为松开钻具的方向时，容易出现钻具的松动，甚至导致钻具从钻夹头上脱落的技术问题。
本申请提供了一种离合装置，其包括回位弹性件、传动组件和转动部；所述传动组件包括至少两个相对设置的接合部，其中一个所述接合部能够与钻夹头的前体同步转动，另一个所述接合部能够与所述钻夹头的后体同步转动；两个所述接合部之间的接合能够使所述前体与所述后体之间同步转动；所述转动部沿第一方向的转动能够使所述回位弹性件被压缩，以使两个所述接合部之间相断开；所述转动部沿第二方向的转动能够使被压缩的所述回位弹性件复位，以使得两个所述接合部之间相接合。
可选地，两个所述接合部之间通过齿结构实现接合或断开，所述接合部可以为片状结构，而所述齿结构为设置在所述片状结构的片面上的多个齿，且所述多个齿呈圆形分布在所述片面上。
可选地，所述离合装置还包括后套，所述后套用于与所述后体之间固定连接，所述后套与所述后体之间的连接方式可以为过盈配合或键连接。
可选地，还包括触发件，所述转动部的转动能够使所述触发件推动其中一个所述接合部运动，以使所述回位弹性件能够被压缩或复位。
可选地，所述回位弹性件位于其中一个所述接合部的外侧，且两个所述接合部的内侧相对。
可选地，所述接合部的数量为两个，两个所述接合部分别为第一接合部和第二接合部；
所述回位弹性件位于第二接合部的外侧，且所述第二接合部位于所述回位弹性件和所述第一接合部之间；或，所述回位弹性件位于第一接合部的外侧，且所述第一接合部位于所述回位弹性件和所述第二接合部之间。
可选地，当所述回位弹性件位于所述第二接合部的外侧时，所述第一接合部与所述前体固定连接，所述第二接合部能够沿与所述后体的轴向移动。
可选地，所述触发件包括杠杆；所述转动部沿第一方向的转动能够使所述杠杆撬动所述第二接合部沿所述后体的轴向移动，以使所述第一接合部与所述第二接合部之间相断开。
可选地，所述触发件还包括固定在所述转动部上的连接杆，且所述连接杆沿所述转动部的轴向延伸，所述连接杆上设置有触头；所述杠杆包括第一翘起部及与所述第一翘起部相连接的第二翘起部，且所述第一翘起部与所述第二翘起部之间呈角度设置。
可选地，所述杠杆通过销轴可转动的安装于所述第一接合部的周向；所述转动部为套状结构，所述套状结构的内表面设置有凸出块，用于推动所述杠杆绕所述销轴转动。
可选地，所述第一接合部上开设有定位孔，所述杠杆包括插装部和撬动部；所述插装部的长度延伸方向与所述撬动部的长度延伸方向呈角度设置，所述插装部插装于所述定位孔中，所述转动部为套状结构，所述套状结构的内表面设置有凸出块，用于推动所述插装部在所述定位孔中晃动，以使所述撬动部 运动。
可选地，当所述回位弹性件位于所述第一接合部的外侧时，所述第一接合部能够沿所述前体的轴向移动，所述第二接合部与所述后体固定连接。
可选地，所述触发件包括固定在所述转动部上的连接杆，且所述连接杆沿所述转动部的轴向延伸，所述连接杆上设置有触头；所述第一接合部的表面设置有触头窝；所述触头能够随着所述转动部的转动而进入或脱出所述触头窝。
可选地，所述触发件包括随动部以及固定在所述随动部上的连接杆，且所述连接杆沿所述随动部的轴向延伸，所述连接杆上设置有触头；所述随动部与所述转动部之间通过螺纹传动；所述前体的周向上设置有连杆导槽，用于使所述连接杆沿着所述连杆导槽的长度延伸方向运动。
可选地，所述触发件包括杠杆；所述转动部沿第一方向的转动能够使所述杠杆撬动所述第一接合部沿所述前体的轴向移动，以使所述第一接合部与所述第二接合部之间相断开。
可选地，所述第一接合部上开设有定位孔，所述杠杆包括插装部和撬动部；所述插装部的长度延伸方向与所述撬动部的长度延伸方向呈角度设置，所述插装部插装于所述定位孔中，所述转动部为套状结构，所述套状结构的内表面设置有凸出块，用于推动所述插装部在所述定位孔中晃动，以使所述撬动部运动。
本申请还提供了一种钻夹头，其包括前体、后体、夹爪以及所述的离合装置；所述后体能够相对于所述前体转动，以使所述后体能够驱动所述夹爪运动，以对安装在所述钻夹头上的钻具进行夹紧与松开；其中一个所述接合部与所述前体相连接，另一个所述接合部与所述后体相连。
本申请还提供了一种动力工具，其包括驱动轴及所述的钻夹头；所述驱动轴与所述后体相连接，用于驱动所述后体转动。
本申请还提供了一种钻夹头双向转动的方法，所述钻夹头包括后体、前体和夹爪，该方法包括：使所述后体能够相对于所述前体转动，以使所述后体能够驱动所述夹爪运动；在所述后体与所述前体之间设置有离合装置，以接合或断开所述后体与所述前体，其中，所述离合装置包括回位弹性件、传动组件和转动部；所述传动组件包括至少两个相对设置的接合部，其中一个所述接合部能够与钻夹头的前体同步转动，另一个所述接合部能够与所述钻夹头的后体同步转动；两个所述接合部之间的接合能够使所述前体与所述后体之间同步转动；所述转动部沿第一方向的转动能够使所述回位弹性件被压缩，以使两个所述接合部之间相断开；所述转动部沿第二方向的转动能够使被压缩的所述回位弹性件复位，以使得两个所述接合部之间相接合。
与现有技术相比，本申请的有益效果为：
本申请提供的离合装置、钻夹头、动力工具和钻夹头双向转动的方法，通过对转动部的旋转操作以便于实现两个相对设置的接合部之间的接合或断开，这样当其中一个接合部能够与钻夹头的前体同步转动设置，另一个所述接合部能够与钻夹头的后体同步转动设置后，旋转转动部便可实现前体与后体之间的接合或断开，这样当前体与后体处于相接合的状态时，钻夹头在振动的工作状态或是在空转状态下突然启动时，有利于保证钻夹头上的钻具有安装的稳定性，避免出现松动或脱落的情况，另外通过前体与后体相接合，还实现了钻夹头双向转动，以实现带动钻具进行双向工作，而且可以更为可靠、轻松、简单、快捷的更换钻具。
附图说明
为了更清楚地说明本申请具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的齿轮自紧钻夹头的装配图(未安装后套)；
图2为图1中的齿轮自紧钻夹头的另一视角的结构示意图；
图3为图2中沿A-A线的剖视图；
图4为图1中的齿轮自紧钻夹头的前体的结构示意图；
图5为图1中的离合装置的转动部的结构示意图；
图6为图1中的离合装置的第二接合部的结构示意图；
图7为图1中的离合装置的杠杆的结构示意图；
图8为本申请实施例提供的齿轮自紧钻夹头的爆炸图；
图9为本申请实施例提供的扁爪自紧钻夹头的爆炸图；
图10为本申请实施例提供的扁爪自紧钻夹头的装配图(未安装后套)；
图11为本申请实施例提供的内螺纹自紧钻夹头的装配图(未安装后套)；
图12为本申请实施例提供的齿轮自紧钻夹头的爆炸图；
图13为本申请实施例提供的齿轮自紧钻夹头的剖视图；
图14为本申请实施例提供的齿轮自紧钻夹头的装配图(未安装后套)；
图15为图12中的离合装置的杠杆的结构示意图；
图16为本申请实施例提供的扁爪自紧钻夹头的装配图(未安装后套)；
图17为本申请实施例提供的扁爪自紧钻夹头的爆炸图；
图18为本申请实施例提供的内螺纹自紧钻夹头的爆炸图；
图19为本申请实施例提供的内螺纹自紧钻夹头的装配图(未安装后套)；
图20为本申请实施例提供的齿轮自紧钻夹头的装配图(未安装后套)；
图21为本申请实施例提供的齿轮自紧钻夹头的剖视图；
图22为图20中的离合装置的杠杆的结构示意图；
图23为本申请实施例提供的齿轮自紧钻夹头的爆炸图；
图24为本申请实施例提供的扁爪自紧钻夹头的爆炸图；
图25为本申请实施例提供的扁爪自紧钻夹头的装配图(未安装后套)；
图26为本申请实施例提供的内螺纹自紧钻夹头的装配图(未安装后套)；
图27为本申请实施例提供的内螺纹自紧钻夹头的爆炸图；
图28为本申请实施例提供的齿轮自紧钻夹头的爆炸图；
图29为本申请实施例提供的齿轮自紧钻夹头的装配图(未安装套体)；
图30为本申请实施例提供的齿轮自紧钻夹头的剖视图；
图31为图28中的离合装置的第二接合部的结构示意图；
图32为本申请实施例提供的齿轮自紧钻夹头的剖视图；
图33为图33中的离合装置的第二接合部的结构示意图；
图34为本申请实施例提供的齿轮自紧钻夹头的爆炸图；
图35为本申请实施例提供的扁爪自紧钻夹头的爆炸图；
图36为本申请实施例提供的扁爪自紧钻夹头的剖视图；
图37为本申请实施例提供的内螺纹自紧钻夹头的剖视图；
图38为本申请实施例提供的内螺纹自紧钻夹头的爆炸图；
图39为本申请实施例提供的齿轮自紧钻夹头的爆炸图；
图40为本申请实施例提供的齿轮自紧钻夹头的剖视图；
图41为图39中的离合装置的转动部的结构示意图；
图42为图39中的齿轮自紧钻夹头的固定套的结构示意图；
图43为图39中的离合装置的第二接合部的结构示意图；
图44为图39中的固定套与转动部相配合的第一种状态的示意图；
图45为图39中的固定套与转动部相配合的第二种状态的示意图；
图46为本申请实施例提供的内螺纹自紧钻夹头的剖视图；
图47为本申请实施例提供的内螺纹自紧钻夹头的爆炸图；
图48为本申请实施例提供的内螺纹自紧钻夹头的爆炸图(未安装后套)。
图标：
100-后体；101-前体；102-夹爪；103-夹爪滑道；105-从动锥齿轮；108-主动锥齿轮；111-螺钉；115-前端；116-后端；118-回位弹簧；121-后套；126-端盖；127-钻具容置孔；132-内侧面；133-条形槽；134-定位键；201-第一接合部；202-第二接合部；203-转动部；204-触头；205-连接杆；206-齿；208-杠杆； 209-转动凸条；210-转动槽；216-回位弹性件；217-驱动部；220-第一翘起部；221-第二翘起部；222-容纳槽；223-弹簧槽；224-轴肩；225-销轴；226-避让槽；227-销孔；228-主体部；229-附加部；231-凸出块；232-插装部；233-撬动部；234-定位孔；235-触头窝；236-第一圆弧面；301-圆盘部；302-轴凸部；303-内螺纹；304-外螺纹；305-固定套；306-第一弧形凸起；307-第二弧形凸起；308-三角形结构；309-套体；310-随动部。
具体实施方式
下面将结合附图对本申请的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。在本申请的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
参见图1至图48所示，本申请实施例提供了一种离合装置，该离合装置可以适用于自紧钻夹头，自紧钻夹头可以为齿轮自紧钻夹头、扁爪自紧钻夹头、内螺纹自紧钻夹头或外螺纹自紧钻夹头。该离合装置包括回位弹性件216、传动组件和转动部203；传动组件包括至少两个相对设置的接合部，其中一个接合部能够与钻夹头的前体101同步转动，另一个接合部能够与钻夹头的后体100同步转动；两个接合部之间的接合能够使前体101与后体100之间同步转动；转动部203沿第一方向的转动能够使回位弹性件216被压缩，以使两个接合部之间相断开；转动部203沿第二方向的转动能够使被压缩的回位弹性件216复位，以使得两个接合部之间相接合。
齿轮自紧钻夹头的工作原理为：后体100上的主动锥齿轮108带动前体101上安装有从动锥齿轮105转动，而从动锥齿轮105的转动再带动夹爪102沿前体101上的夹爪滑道103移动，以实现对插装在前体101的钻具容纳孔中的钻具的夹紧或松开。
扁爪自紧钻夹头的工作原理为：后体100带动具有外螺纹结构的驱动部217转动，而驱动部217带动与其连接的夹爪102沿前体101上的夹爪滑道103移动。
内螺纹自紧钻夹头的工作原理为：后体100上的驱动部217的外螺纹结构与夹爪102上的螺纹结构相配合实现传动，这样后体100转动时，便可以实现夹爪102沿前体101上的夹爪滑道103移动。
例如，接合部的数量为两个。回位弹性件216可以为波形垫片，转动部203为套状结构。传动组件包括两个相对设置的接合部时，两个接合部之间是能够相互接合或断开的，并且两个接合部之间通过齿结构实现接合或断开，接合部可以为片状结构，而齿结构即为设置在片状结构的片面上的多个齿206，且多个齿呈圆形分布在片面上，齿可以为棘齿。第一方向为松开方向，而松开方向即能够松开钻夹头上的钻具时，转动部203的转动方向；第二方向为夹紧方向，而夹紧方向即能够夹紧钻夹头上的钻具时，转动部203的转动方向。两个接合部分别为第一接合部201和第二接合部202。转动部203沿夹紧方向转动一定角度后，第二接合部202在回位弹性件216的作用下，实现第二接合部202与第一接合部201相接合，从而能够防止将钻夹头上的钻具松开；转动部203沿松开方向转动一定角度后，第二接合部202与第一接合部201相断开，从而能够实现将钻夹头上的钻具松开。回位弹性件216为波形弹簧垫圈。在钻夹头的夹爪102对钻具进行夹紧后，从钻具的工作端(如当钻具为钻头时，钻头的工作端能够使物体上钻出孔)向钻夹头所在的方向观察钻夹头时，逆时针方向旋转为钻夹头的正转，顺时针方向旋转为钻夹头反转。后体100相对于前体101正转，以实现夹爪102对钻具的夹紧，后体100相对于前体101反转，以实现夹爪102对钻具的松开。后体100的正转方向、前体101的正转方向均与钻夹头的正转方向相同；后体100的反转方向、前体101的反转方向均与钻夹头的反转方向相同。后体100能够相对于前体101绕后体100的轴线转动，后体100与前体101同轴设置。转动部203的夹紧方向与钻夹头的反转 方向相同，开关套的松开方向与钻夹头的正转方向相同。该实施例中钻夹头的后体100正转，可以实现夹爪102对钻具进行夹紧，而后体100反转，可以实现夹爪102对钻具的松开；在通过使后体100正转动，以实现夹爪102对钻具进行夹紧后，可以实现常规的正转动，此时，后体100与前体101一起正转；在夹爪102夹紧钻具的情况下，当使后体100与前体101通过离合装置接合后，通过离合装置实现后体100与前体101之间保持相对静止的固定连接状态，即后体100与前体101一起反转，从而通过离合装置实现了钻夹头双向转动，以实现带动钻具进行双向工作，用户体验较好。需要说明的是，回位弹性件216还可以为弹簧等；波形垫片的材质可以为金属。
可选地，离合装置还包括后套121，后套121用于与后体100之间固定连接，后套121与后体100之间的连接方式可以过盈配合或键连接。使用时，通过转动后套121能够带动后体100转动。
该实施例提供的离合装置，通过对转动部203的旋转操作以便于实现两个相对设置的接合部之间的接合或断开，这样当其中一个接合部能够与钻夹头的前体101同步转动设置，另一个接合部能够与钻夹头的后体100同步转动设置后，旋转转动部203便可实现前体101与后体100之间的接合或断开，这样当前体101与后体100相接合的状态时，钻夹头在振动的工作状态或是在空转状态下突然启动时，有利于保证钻夹头上的钻具有安装的稳定性，避免出现松动或脱落的情况，另外通过前体101与后体100相接合，还实现了钻夹头双向转动，以实现带动钻具进行双向工作。
可选地，离合装置还包括触发件，转动部203的转动能够使触发件推动其中一个接合部运动，以使回位弹性件216能够被压缩或复位。
例如，当离合装置与钻夹头的前体101、后体100相连接后，转动部203的转动，才能使得回位弹性件216能够被压缩或复位；在回位弹性件216被压缩时，也即用于实现两个相对设置的接合部之间的断开，而当被压缩的回位弹性件216复位时，也即用于实现两个相对设置的接合部之间的接合。
可选地，回位弹性件216位于其中一个接合部的外侧，且两个接合部的内侧相对。齿结构位于接合部的内侧。第一接合部201和第二接合部202均可以为片状结构。
该实施例还提供了一种钻夹头双向转动的方法，钻夹头包括后体100、前体101和夹爪102，该方法包括：使后体100能够相对于前体101转动，以使后体100能够驱动夹爪102运动；在后体100与前体101之间设置有离合装置，以接合或断开后体100与前体101，其中，离合装置包括回位弹性件216、传动组件和转动部203；传动组件包括至少两个相对设置的接合部，其中一个接合部能够与钻夹头的前体101同步转动，另一个接合部能够与钻夹头的后体100同步转动；两个接合部之间的接合能够使前体101与后体100之间同步转动；转动部203沿第一方向的转动能够使回位弹性件216被压缩，以使两个接合部之间相断开；转动部203沿第二方向的转动能够使被压缩的回位弹性件216复位，以使得两个接合部之间相接合。
在一实施例中，回位弹性件216位于第二接合部202的外侧，且第二接合部202位于回位弹性件216和第一接合部201之间，并且后套121还用于对回位弹性件216进行限位，以实现回位弹性件216能够压缩或复位。
可选地，当回位弹性件216位于第二接合部202的外侧时，第一接合部201与前体101通过螺钉111固定连接，第二接合部202能够沿与后体100的轴向移动，后体100的后端116的周向设置有沿其轴向延伸的条形槽133，而第二接合部202套设在后体100的后端116，第二接合部202的轴孔的内壁上设置有与后体100上的条形槽133相配合的定位键134，定位键134与轴孔的孔壁为一体结构，这样以实现后体100与第二接合部202在周向方向上的相对固定，而在轴向方向能够发生位移。后套121还用于对回位弹性件216进行限位，通过后套121对回位弹性件216限位，可以实现两个目的，第一目的是：使得回位弹性件216能够被压缩；第二目的是：在被压缩的回位弹性件216复位时，使得第二接合部202向第一接合部201的方向运动，以达到第二接合部202与第一接合部201相接合的目的。需要说明的是，后体100与第二接合部202之间还可以通过异型孔结构连接，以实现后体100与第二接合部202在周向方向上的相对固定，而在轴向方向能够发生位移，异型孔可以腰圆孔或方孔等。
参见图1至图11，以图48所示，该实施例中，触发件包括杠杆208；转动部203沿第一方向的转动能够使杠杆208撬动第二接合部202沿后体100的轴向移动(即杠杆208使第二接合部202向远离第一接合部201的方向运动)，以使第一接合部201与第二接合部202之间相断开。转动部203沿第二方 向的转动使得回位弹性件216能够复位，使第二接合部202向靠近第一接合部201的方向运动，以使第一接合部201与第二接合部202之间相接合。
可选地，触发件还包括固定在转动部203上的连接杆205，且连接杆205沿转动部203的轴向延伸，连接杆205上设置有触头204；杠杆208包括第一翘起部220及与第一翘起部220相连接的第二翘起部221，且第一翘起部220与第二翘起部221之间呈角度设置。
例如，第一翘起部220与第二翘起部221之间所成的角度大于90度，角度可以为120度-170度等，例如可以为150度或160度。杠杆208还包括转动凸条209，转动凸条209基本位于第一翘起部220与第二翘起部221的连接处；转动凸条209与前体101的后端116面相接触，且杠杆208的数量为3个。连接杆205的数量为三个。触头204具有三角形结构308，且该三角形结构308的一个顶角抵接在第一翘起部220或第二翘起部221上。转动凸条209可以为至少具有弧面的柱形结构。转动部203沿第一方向转动时，触头204上的三角形结构的顶角从第一翘起部220移动到第二翘起部221，由于转动凸条209上的弧面的作用，可以第一翘起部220和第二翘起部221绕着转动凸条209转动，这样便可以实现第二接合部202沿后体100的轴向移动，以使第一接合部201与第二接合部202之间相断开。
本实施例还提供一种钻夹头，其包括前体101、后体100、夹爪102以及该实施例中的离合装置；后体100能够相对于前体101转动，以使后体100能够驱动夹爪102运动，以对安装在钻夹头上的钻具进行夹紧与松开；第一接合部201与前体101相连接，第二接合部202与后体100相连。钻具可以为钻头、珩磨头或镗头等。前体101的周向开设有用于限位连接杆205的容纳槽222，容纳槽222的槽宽大于连接杆205的宽度，这样可以实现连接杆205随着转动部203转动一定的角度，以达到第一接合部201与第二接合部202相断开或接合的目的。为了使得转动部203在沿第一方向转动实现第一接合部201与第二接合部202断开后，有利于转动部203沿第二方向转动，可以在一个容纳槽222中开设弹簧槽223，弹簧槽223的安装回位弹簧118，回位弹簧118的一端与弹簧槽223的长度方向的一端相抵接，回位弹簧118的另一端与连接杆205相抵接，回位弹簧118的伸长方向与容纳槽222的长度方向相垂直；容纳槽222的长度方向与前体101的轴向相平行。转动部203为套状结构，该套状结构套设在前体101上，且套状结构被前体101上的轴肩224所限位，避免套状结构从前体101上脱落。后体100的后端116穿过第一接合部201，且与后体100与第一接合之间间隙设置，在后体100的后端116穿过第一接合部201后，后体100的后端116与第二接合部202相连接，以实现后体100与第二接合部202在周向方向上的相对固定，而在轴向方向能够发生位移；后体100的后端116穿过第二接合部202后，再与后套121固定连接。后体100具有轴肩224，用于在后体100的后端116穿出第一接合部201后，后体100不会从前体101上脱出。前体101的后端116的端面上还开设有转动槽210，供转动凸条209位于其中。
例如，钻夹头可以为自紧钻夹头，自紧钻夹头可以为齿轮自紧钻夹头、扁爪自紧钻夹头或内螺纹自紧钻夹头。当第一接合部201与第二接合部202之间相断开时，后体100正转可以实现夹爪102对钻具进行夹紧，而后体100反转可以实现夹爪102对钻具的松开。需要说明的是，该实施例中自紧钻夹头的后体100驱动夹爪102运动的结构及夹爪102在前体101上的安装为现有技术，该实施例不再详细阐述。
参见图12至图19所示，该实施例中，触发件包括杠杆208；转动部203沿第一方向的转动能够使杠杆208撬动第二接合部202沿后体100的轴向移动(即杠杆208使第二接合部202向远离第一接合部201的方向运动)，以使第一接合部201与第二接合部202之间相断开。转动部203沿第二方向的转动使得回位弹性件216能够复位，使第二接合部202向靠近第一接合部201的方向运动，以使第一接合部201与第二接合部202之间相接合。
可选地，杠杆208通过销轴225可转动的安装于第一接合部201的周向；转动部203为套状结构，套状结构的内表面设置有凸出块231，用于推动杠杆208绕销轴225转动。
例如，第一接合部201的周向具有多个避让槽226，销轴225在避让槽226的槽壁上，且销轴225的轴向可以与转动部203径向相平行。杠杆208上开设有销孔227，以供销轴225穿过。杠杆208包括主体部228和附加部229，销孔227位于主体部228上。附加部229用于与第二接合部202相接触，以撬动第二接合部202运动。当转动部203向实现第一接合部201与第二接合部202相断开的方向转动时，转动部203对杠杆208的主体部228施力，杠杆208绕销轴225转动，附加部229的棱边与第二接合部202相抵接，以达到撬动第二接合部202的目的；当转动部203向实现第一接合部201与第二接合部202 相接合的方向转动时，由于回位弹性件216作用，迫使第二接合部202向第一接合部201所在的方向运动，第二接合部202对附加部229施力，从而使杠杆208再次转动，以使杠杆208复位。避让槽226的数量、杠杆208的数量、凸出块231的数量三者相等，均可以为三个。
本实施例还提供一种钻夹头，其包括前体101、后体100、夹爪102以及该实施例中的离合装置；后体100能够相对于前体101转动，以使后体100能够驱动夹爪102运动，以对安装在钻夹头上的钻具进行夹紧与松开；第一接合部201与前体101相连接，第二接合部202与后体100相连。钻具可以为钻头、珩磨头或镗头等。前体101的周向开设有用于容纳杠杆208和凸出块231的容纳槽222，并且容纳槽222的宽度要大于杠杆208主体部228的宽度与凸出块231的宽度的和，这样当转动部203转动时，可以使得杠杆208能够在容纳槽222中转动，以达到第一接合部201与第二接合部202相断开或接合的目的。转动部203为套状结构，该套装结构套设在前体101上，且套状结构被前体101上的轴肩224所限位，避免套状结构从前体101上脱落。后体100的后端116穿过第一接合部201，且与后体100与第一接合之间间隙设置，在后体100的后端116穿过第一接合部201后，后体100的后端116与第二接合部202相连接，以实现后体100与第二接合部202在周向方向上的相对固定，而在轴向方向能够发生位移；后体100的后端116穿过第二接合部202后，再与后套121固定连接。后体100具有轴肩224，用于在后体100的后端116穿出第一接合部201后，后体100不会从前体101上脱出。
例如，钻夹头可以为自紧钻夹头，自紧钻夹头可以为齿轮自紧钻夹头、扁爪自紧钻夹头或内螺纹自紧钻夹头。当第一接合部201与第二接合部202之间相断开时，后体100正转可以实现夹爪102对钻具进行夹紧，而后体100反转可以实现夹爪102对钻具的松开。需要说明的是，该实施例中自紧钻夹头的后体100驱动夹爪102运动的结构及夹爪102在前体101上的安装为现有技术，该实施例不再详细阐述。
参见图20至图27所示，该实施例中，触发件包括杠杆208；转动部203沿第一方向的转动能够使杠杆208撬动第二接合部202沿后体100的轴向移动(即杠杆208使第二接合部202向远离第一接合部201的方向运动)，以使第一接合部201与第二接合部202之间相断开。转动部203沿第二方向的转动使得回位弹性件216能够复位，使第二接合部202向靠近第一接合部201的方向运动，以使第一接合部201与第二接合部202之间相接合。转动部203为套状结构。
可选地，第一接合部201上开设有定位孔234，杠杆208包括插装部232和撬动部233；插装部232的长度延伸方向与撬动部233的长度延伸方向呈角度设置，插装部232插装于定位孔234中，转动部203为套状结构，套状结构的内表面设置有凸出块231，用于推动插装部232在定位孔234中晃动，以使撬动部233运动。
例如，定位孔234可以为矩形孔，插装部232插装在矩形孔后，插装部232配矩形孔间隙配合，以使得插装部232在矩形方孔中能够晃动。定位孔234的数量和杠杆208的数量均可以为多个，如3个，这样可以使得第二接合部202的运动平稳。当转动部203向实现第一接合部201与第二接合部202相断开的方向转动时，转动部203对杠杆208的插装部232施力，从而使撬动部233的端部抬起以与第二接合部202相抵接，以达到撬动第二接合部202的目的；当转动部203向实现第一接合部201与第二接合部202相接合的方向转动时，由于回位弹性件216作用，迫使第二接合部202向第一接合部201所在的方向运动，第二接合部202对撬动部233施力，以使杠杆208复位。
本实施例还提供一种钻夹头，其包括前体101、后体100、夹爪102以及该实施例中的离合装置；后体100能够相对于前体101转动，以使后体100能够驱动夹爪102运动，以对安装在钻夹头上的钻具进行夹紧与松开；第一接合部201与前体101相连接，第二接合部202与后体100相连。钻具可以为钻头、珩磨头或镗头等。前体101的周向开设有用于容纳凸出块231的容纳槽222，并且容纳槽222的宽度要大于凸出块231的宽度，这样当转动部203转动时，可以使得凸出块231能够在容纳槽222中运动，以达到第一接合部201与第二接合部202相断开或接合的目的。转动部203为套状结构，该套装结构套设在前体101上，且套状结构被前体101上的轴肩224所限位，避免套状结构从前体101上脱落。后体100的后端116穿过第一接合部201，且与后体100与第一接合之间间隙设置，在后体100的后端116穿过第一接合部201后，后体100的后端116与第二接合部202相连接，以实现后体100与第二接合部202在周向方向上的相对固定，而在轴向方向能够发生位移；后体100的后端116穿过第二接合部202后，再与后套121固定连接。后体100具有轴肩224，用于在后体100的后端116穿出第一接合部201 后，后体100不会从前体101上脱出。
例如，钻夹头可以为自紧钻夹头，自紧钻夹头可以为齿轮自紧钻夹头、扁爪自紧钻夹头或内螺纹自紧钻夹头。当第一接合部201与第二接合部202之间相断开时，后体100正转可以实现夹爪102对钻具进行夹紧，而后体100反转可以实现夹爪102对钻具的松开。需要说明的是，该实施例中自紧钻夹头的后体100驱动夹爪102运动的结构及夹爪102在前体101上的安装为现有技术，该实施例不再详细阐述。
参见图28至图31所示，该实施例中，回位弹性件216位于第一接合部201的外侧，且第一接合部201位于回位弹性件216和第二接合部202之间。离合装置还包括端盖126，通过转动部203实现回位弹性件216的压缩或复位。当回位弹性件216位于第一接合部201的外侧时，第一接合部201能够沿前体101的轴向移动，第二接合部202与后体100固定连接；由于前体与后体同轴设置，第一接合部沿前体的轴向移动与第一接合部沿后体的轴向移动是等同的。
例如，端盖126包括圆盘部301及与圆盘部301相连接的轴凸部302；圆盘部301通过螺钉111与前体101固定连接；端盖126上开设有供后体100的后端116穿出的轴孔。回位弹性件216套设在端盖126的轴凸部302外，并且轴凸部302的外周面设置有多个沿轴凸部302的轴向延伸的条形槽133，第一接合部201的轴孔的内壁上设置有与轴凸部302上的条形槽133相配合的定位键134，定位键134与第一接合部201的轴孔的孔壁为一体结构，这样以实现轴凸部302与第一接合部201在周向方向上的相对固定，而在轴向方向能够发生位移。后套包括套体309和套盖，套盖与套体之间可以通过过盈配合的方式固定连接，第二接合部202与后套121的套盖为一体结构，后体100的后端116穿过轴凸部302的轴孔后，插入第二接合部202的轴孔中，且后体100的后端116与第二接合部202之间通过过盈配合的方式、键连接的方式或销连接的方式固定连接。回位弹性件216位于端盖126的圆盘部301和第一接合部201之间。
该实施例中，触发件包括杠杆208；转动部203沿第一方向的转动能够使杠杆208撬动第一接合部201沿前体101的轴向移动(即杠杆208使第一接合部201向远离第二接合部202的方向运动，即使第一接合部向靠近前体的后端的方向运动)，以使第一接合部201与第二接合部202之间相断开。转动部203沿第二方向的转动使得回位弹性件216能够复位，使第一接合部201向靠近第二接合部202的方向运动，以使第一接合部201与第二接合部202之间相接合。转动部203为套状结构。
可选地，第一接合部201上开设有定位孔234，杠杆208包括插装部232和撬动部233；插装部232的长度延伸方向与撬动部233的长度延伸方向呈角度设置，插装部232插装于定位孔234中，转动部203为套状结构，套状结构的内表面设置有凸出块231，用于推动插装部232在定位孔234中晃动，以使撬动部233运动。
例如，定位孔234可以为矩形孔，插装部232插装在矩形孔后，插装部232配矩形孔间隙配合，以使得插装部232在矩形方孔中能够晃动。定位孔234的数量和杠杆208的数量均可以为多个，如3个，这样可以使得第一接合部201的运动平稳。当转动部203向实现第一接合部201与第二接合部202相断开的方向转动时，转动部203对杠杆208的插装部232施力，从而使撬动部233的一端与第二接合部202的表面相抵接，撬动部233的另一端与第一接合部201的表面相抵接，由于第二接合部202与后体100固定连接，而第一接合部201与前体之间能够发生相对的轴向位移，因为第二接合部202不动，而第一接合部201在撬动部233的另一端的作用下压着第一接合部201，使第一接合部向前体的后端的方向移动；当转动部203向实现第一接合部201与第二接合部202相接合的方向转动时，由于回位弹性件216作用，迫使第一接合部201向第二接合部202所在的方向运动，第一接合部201对撬动部233施力，以使杠杆208复位。
本实施例还提供一种钻夹头，其包括前体101、后体100、夹爪102以及该实施例中的离合装置；后体100能够相对于前体101转动，以使后体100能够驱动夹爪102运动，以对安装在钻夹头上的钻具进行夹紧与松开；第一接合部201与前体101相连接，第二接合部202与后体100相连。钻具可以为钻头、珩磨头或镗头等。前体101的周向开设有用于容纳凸出块231的容纳槽222，并且容纳槽222的宽度要大于凸出块231的宽度和插装部的宽度之和，这样当转动部203转动时，可以使得凸出块231能够在容纳槽222中运动及插装部在容纳槽中的晃动，以达到第一接合部201与第二接合部202相断开或接合的目的。转动部203为套状结构，该套装结构套设在前体101上，且套状结构被前体101上的轴肩224 所限位，避免套状结构从前体101上脱落。后体100的后端116穿过端盖126的轴凸部302的轴孔，且后体100与轴凸部302之间间隙设置，在后体100的后端116穿过端盖126的轴凸部302的轴孔，后体100的后端116与第二接合部202相连接，以实现后体100与第二接合部202之间能够固定连接。后体100具有轴肩224，用于在后体100的后端116穿出轴凸部302的轴孔后，后体100不会从前体101上脱出，并且使得后体100基本不会与前体101之间发生相对的轴向位移。端盖126的圆盘部301上开设有的周向开设有多个用于避让杠杆的插装部的避让槽226，避让槽226的宽度基本与容纳槽222的宽度相等，这样不会影响插装部的晃动。
例如，钻夹头可以为自紧钻夹头，自紧钻夹头可以为齿轮自紧钻夹头、扁爪自紧钻夹头或内螺纹自紧钻夹头，该实施例中，自紧钻夹头以齿轮自紧钻头为例。当第一接合部201与第二接合部202之间相断开时，后体100正转可以实现夹爪102对钻具进行夹紧，而后体100反转可以实现夹爪102对钻具的松开。需要说明的是，该实施例中自紧钻夹头的后体100驱动夹爪102运动的结构及夹爪102在前体101上的安装为现有技术，该实施例不再详细阐述。
参见图32至图38所示，该实施例中，回位弹性件216位于第一接合部201的外侧，且第一接合部201位于回位弹性件216和第二接合部202之间。离合装置还包括端盖126，通过转动部203实现回位弹性件216的压缩或复位。当回位弹性件216位于第一接合部201的外侧时，第一接合部201能够沿前体101的轴向移动，第二接合部202与后体100固定连接。
例如，端盖126包括圆盘部301及与圆盘部301相连接的轴凸部302；圆盘部301通过螺钉111与前体101固定连接；端盖126上开设有供后体100的后端116穿出的轴孔。回位弹性件216套设在端盖126的轴凸部302外，并且轴凸部302的外周面设置有多个沿轴凸部302的轴向延伸的条形槽133，第一接合部201的轴孔的内壁上设置有与轴凸部302上的条形槽133相配合的定位键134，定位键134与第一接合部201的轴孔的孔壁为一体结构，这样以实现轴凸部302与第一接合部201在周向方向上的相对固定，而在轴向方向能够发生位移。后套包括套体309和套盖，套盖与套体之间可以通过过盈配合的方式固定连接，第二接合部202与后套121的套盖为一体结构，后体100的后端116穿过轴凸部302的轴孔后，插入第二接合部202的轴孔中，且后体100的后端116与第二接合部202之间通过过盈配合的方式、键连接的方式或销连接的方式固定连接。回位弹性件216位于端盖126的圆盘部301和第一接合部201之间。
可选地，触发件包括固定在转动部203上的连接杆205，且连接杆205沿转动部203的轴向延伸，连接杆205上设置有触头204；第一接合部201的表面设置有触头窝235；触头204能够随着转动部203的转动而进入或脱出触头窝235。
例如，转动部203为套状结构，连接杆205的延伸方向与套状结构的轴向相平行。连接杆205的一端与套状结构相连接，连接杆205的另一端设置有触头204，触头204至少具有第一圆弧面236；触头窝235位于第一接合部201的内侧面132。触头窝235具有与触头204上的第一圆弧面236相配合的第二圆弧面，即触头窝235的底部为圆弧面结构。当转动部203向实现第一接合部201与第二接合部202相断开的方向转动时，连接杆205随着转动部203转动，连接杆205上的触头204从触头窝235中脱出，触头204便与第一接合部201的内侧面132相抵接，这样触头204便使得第一接合部201运动，第一接合部201再压缩回位弹性件216，以达到第一接合部201与第二接合部202相断开的目的；当转动部203向实现第一接合部201与第二接合部202相接合的方向转动时，连接杆205随着转动部203转动，连接杆205上的触头204再进入触头窝235，回位弹性件216使第一接合部201向第二接合部202所在的方向移动，以达到第二接合部202与第一接合部201相接合的目的。
本实施例还提供一种钻夹头，其包括前体101、后体100、夹爪102以及该实施例中的离合装置；后体100能够相对于前体101转动，以使后体100能够驱动夹爪102运动，以对安装在钻夹头上的钻具进行夹紧与松开；第一接合部201与前体101相连接，第二接合部202与后体100相连。钻具可以为钻头、珩磨头或镗头等。前体101的周向开设有多个用于限位连接杆205的容纳槽222，并且容纳槽222的宽度要大于连接杆205的宽度，这样当转动部203转动时，可以使得连接杆205能够在容纳槽222中具有一角的转动角度，以达到第一接合部201与第二接合部202相断开或接合的目的。转动部203套设在前体101上，且套状结构被前体101上的轴肩224所限位，避免套状结构从前体101上脱落。后体100 的后端116穿过第一接合部201，且与后体100与第一接合之间间隙设置，以保证后体100能够相对于第一接合部201转动；后体100具有轴肩224，用于在后体100的后端116穿出第一接合部201后，后体100不会从前体101上脱出。
例如，钻夹头可以为自紧钻夹头，自紧钻夹头可以为齿轮自紧钻夹头、扁爪自紧钻夹头或内螺纹自紧钻夹头。当第一接合部201与第二接合部202之间相断开时，后体100正转可以实现夹爪102对钻具进行夹紧，而后体100反转可以实现夹爪102对钻具的松开。需要说明的是，该实施例中自紧钻夹头的后体100驱动夹爪102运动的结构及夹爪102在前体101上的安装为现有技术，该实施例不再详细阐述。
参见图39至图47所示，该实施例中，回位弹性件216位于第一接合部201的外侧，且第一接合部201位于回位弹性件216和第二接合部202之间。离合装置还包括端盖126，通过转动部203实现回位弹性件216的压缩或复位。当回位弹性件216位于第一接合部201的外侧时，第一接合部201能够沿前体101的轴向移动，第二接合部202与后体100固定连接。
例如，端盖126包括圆盘部301及与圆盘部301相连接的轴凸部302；圆盘部301通过螺钉111与前体101固定连接；端盖126上开设有供后体100的后端116穿出的轴孔。回位弹性件216套设在端盖126的轴凸部302外，并且轴凸部302的外周面设置有多个沿轴凸部302的轴向延伸的条形槽133，第一接合部201的轴孔的内壁上设置有与轴凸部302上的条形槽133相配合的定位键134，定位键134与第一接合部201的轴孔的孔壁为一体结构，这样以实现轴凸部302与第一接合部201在周向方向上的相对固定，而在轴向方向能够发生位移。后套包括套体309和套盖，套盖与套体之间可以通过过盈配合的方式固定连接，第二接合部202与后套121的套盖为一体结构，后体100的后端116穿过轴凸部302的轴孔后，插入第二接合部202的轴孔中，且后体100的后端116与第二接合部202之间通过过盈配合的方式、键连接的方式或销连接的方式固定连接。回位弹性件216位于端盖126的圆盘部301和第一接合部201之间。后体100具有轴肩224，用于在后体100的后端116穿出端盖126后，后体100不会从前体101上脱出。
可选地，触发件包括随动部310以及固定在随动部310上的连接杆205，且连接杆205沿随动部310的轴向延伸，连接杆205上设置有触头204；随动部310与转动部203之间通过螺纹传动；前体101的周向上设置有连杆导槽，用于使连接杆205沿着连杆导槽的长度延伸方向运动。
例如，转动部203为套状结构，连接杆205的延伸方向与套状结构的轴向相平行。随动部310呈套状。转动部203的轴孔的内壁上有具有内螺纹303，而随动部310的外表面具有与转动部203上的内螺纹相配合的外螺纹304。当转动部203向实现第一接合部201与第二接合部202相断开的方向转动时，转动部203与随动部310之间再通过螺纹传动，随动部310上的连接杆205上的触头204对第一接合部201施力，使第一接合部201压缩回位弹性件216，以达到第一接合部201与第二接合部202相断开的目的；当转动部203向实现第一接合部201与第二接合部202相接合的方向转动时，回位弹性件216使第一接合部201向第二接合部202所在的方向移动，以达到第二接合部202与第一接合部201相接合的目的。
本实施例还提供一种钻夹头，其包括前体101、后体100、夹爪102以及该实施例中的离合装置；后体100能够相对于前体101转动，以使后体100能够驱动夹爪102运动，以对安装在钻夹头上的钻具进行夹紧与松开；第一接合部201与前体101相连接，第二接合部202与后体100相连。钻具可以为钻头、珩磨头或镗头等。前体101的周向开设有多个用于限位连接杆205的容纳槽222，以使随动部310沿前体101的轴向移动，这样当转动部203转动时，随动部310沿前体101的轴向移动，而随动部310上的触头204可以实现对回位弹性件216压缩或释放，以达到第一接合部201与第二接合部202相断开或接合的目的。转动部203套设在前体101上，前体101的前端115固定有固定套305，固定套305的朝向前体101的后端116的面上具有第一弧形凸起306，而转动部203的轴孔的内壁上设置有与第一弧形凸起306相配合的第二弧形凸起307，以限制转动部203的转动角度，即使得转动部203的转动角度在一设定的范围内。固定套305与前体101的前端115可以通过过盈配合或螺钉111连接的方式固定连接，且固定套305还可以用于防止转动部203从前体101的前端115脱出。当转动部203向第一方向转动一定转角度时，第二弧形凸起307的一端被第一弧形凸起306一端所止挡；当转动部203向第二方向转动一定转角度时，第二弧形凸起307的另一端被第一弧形凸起306另一端所止挡。后体100的后端116 穿过第一接合部201，且与后体100与第一接合之间间隙设置，以保证后体100能够相对于第一接合部201转动；后体100具有轴肩224，用于在后体100的后端116穿出第一接合部201后，后体100不会从前体101上脱出。
例如，钻夹头可以为自紧钻夹头，自紧钻夹头可以为齿轮自紧钻夹头、扁爪自紧钻夹头或内螺纹自紧钻夹头。当第一接合部201与第二接合部202之间相断开时，后体100正转可以实现夹爪102对钻具进行夹紧，而后体100反转可以实现夹爪102对钻具的松开。需要说明的是，该实施例中自紧钻夹头的后体100驱动夹爪102运动的结构及夹爪102在前体101上的安装为现有技术，该实施例不再详细阐述。
本申请实施例提供了一种动力工具，其包括驱动轴及钻夹头，该钻夹头可以为上述实施例中提供的钻夹头；驱动轴与后体100相连接，用于驱动后体100转动。后体100还具有轴向螺纹孔或是锥面锥孔，用于与驱动轴相连接。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。在此处所提供的说明书中，说明了大量具体细节。
工业实用性
本申请提供的离合装置、钻夹头、动力工具和钻夹头双向转动的方法，有利地保证钻夹头上的钻具有安装的稳定性，避免出现松动或脱落的情况，还实现了钻夹头双向转动，以实现带动钻具进行双向工作，而且可以更为可靠、轻松、简单、快捷地更换钻具。

Claims (19)

  1. 一种离合装置，其特征在于，包括回位弹性件、传动组件和转动部；所述传动组件包括至少两个相对设置的接合部，其中一个所述接合部能够与钻夹头的前体同步转动，另一个所述接合部能够与所述钻夹头的后体同步转动；两个所述接合部之间的接合能够使所述前体与所述后体之间同步转动；所述转动部沿第一方向的转动能够使所述回位弹性件被压缩，以使两个所述接合部之间相断开；所述转动部沿第二方向的转动能够使被压缩的所述回位弹性件复位，以使得两个所述接合部之间相接合。
  2. 根据权利要求1所述的离合装置，其特征在于，两个所述接合部之间通过齿结构实现接合或断开，所述接合部可以为片状结构，所述齿结构为设置在所述片状结构的片面上的多个齿，且所述多个齿呈圆形分布在所述片面上。
  3. 根据权利要求1或2所述的离合装置，其特征在于，所述离合装置还包括后套，所述后套用于与所述后体之间固定连接，所述后套与所述后体之间的连接方式可以为过盈配合或键连接。
  4. 根据前述权利要求中任一项所述的离合装置，其特征在于，还包括触发件，所述转动部的转动能够使所述触发件推动其中一个所述接合部运动，以使所述回位弹性件能够被压缩或复位。
  5. 根据前述权利要求中任一项所述的离合装置，其特征在于，所述回位弹性件位于其中一个所述接合部的外侧，且两个所述接合部的内侧相对。
  6. 根据前述权利要求中任一项所述的离合装置，其特征在于，所述接合部的数量为两个，两个所述接合部分别为第一接合部和第二接合部；
    所述回位弹性件位于第二接合部的外侧，且所述第二接合部位于所述回位弹性件和所述第一接合部之间；或，所述回位弹性件位于第一接合部的外侧，且所述第一接合部位于所述回位弹性件和所述第二接合部之间。
  7. 根据权利要求6所述的离合装置，其特征在于，当所述回位弹性件位于所述第二接合部的外侧时，所述第一接合部与所述前体固定连接，所述第二接合部能够沿与所述后体的轴向移动。
  8. 根据权利要求6或7所述的离合装置，其特征在于，所述触发件包括杠杆；所述转动部沿第一方向的转动能够使所述杠杆撬动所述第二接合部沿所述后体的轴向移动，以使所述第一接合部与所述第二接合部之间相断开。
  9. 根据权利要求8所述的离合装置，其特征在于，所述触发件还包括固定在所述转动部上的连接杆，且所述连接杆沿所述转动部的轴向延伸，所述连接杆上设置有触头；所述杠杆包括第一翘起部及与所述第一翘起部相连接的第二翘起部，且所述第一翘起部与所述第二翘起部之间呈角度设置。
  10. 根据权利要求8或9所述的离合装置，其特征在于，所述杠杆通过销轴可转动的安装于所述第一接合部的周向；所述转动部为套状结构，所述套状结构的内表面设置有凸出块，用于推动所述杠杆绕所述销轴转动。
  11. 根据权利要求6或7所述的离合装置，其特征在于，所述第一接合部上开设有定位孔，所述杠杆包括插装部和撬动部；所述插装部的长度延伸方向与所述撬动部的长度延伸方向呈角度设置，所述插装部插装于所述定位孔中，所述转动部为套状结构，所述套状结构的内表面设置有凸出块，用于推动所述插装部在所述定位孔中晃动，以使所述撬动部运动。
  12. 根据权利要求6或7所述的离合装置，其特征在于，当所述回位弹性件位于所述第一接合部的外侧时，所述第一接合部能够沿所述前体的轴向移动，所述第二接合部与所述后体固定连接。
  13. 根据权利要求6或7所述的离合装置，其特征在于，所述触发件包括固定在所述转动部上的连接杆，且所述连接杆沿所述转动部的轴向延伸，所述连接杆上设置有触头；所述第一接合部的表面设置有触头窝；所述触头能够随着所述转动部的转动而进入或脱出所述触头窝。
  14. 根据权利要求4或5所述的离合装置，其特征在于，所述触发件包括随动部以及固定在所述随动部上的连接杆，且所述连接杆沿所述随动部的轴向延伸，所述连接杆上设置有触头；所述随动部与所述转动部之间通过螺纹传动；所述前体的周向上设置有连杆导槽，用于使所述连接杆沿着所述连杆导槽的长度延伸方向运动。
  15. 根据权利要求12所述的离合装置，其特征在于，所述触发件包括杠杆；所述转动部沿第一方向的转动能够使所述杠杆撬动所述第一接合部沿所述前体的轴向移动，以使所述第一接合部与所述第二接合部之间相断开。
  16. 根据权利要求15所述的离合装置，其特征在于，所述第一接合部上开设有定位孔，所述杠杆包括插装部和撬动部；所述插装部的长度延伸方向与所述撬动部的长度延伸方向呈角度设置，所述插装部插装于所述定位孔中，所述转动部为套状结构，所述套状结构的内表面设置有凸出块，用于推动所述插装部在所述定位孔中晃动，以使所述撬动部运动。
  17. 一种钻夹头，其特征在于，包括前体、后体、夹爪以及如权利要求1-16中任一项所述的离合装置；所述后体能够相对于所述前体转动，以使所述后体能够驱动所述夹爪运动，以对安装在所述钻夹头上的钻具进行夹紧与松开；其中一个所述接合部与所述前体相连接，另一个所述接合部与所述后体相连。
  18. 一种动力工具，其特征在于，包括驱动轴及如权利要求17所述的钻夹头；所述驱动轴与所述后体相连接，用于驱动所述后体转动。
  19. 一种钻夹头双向转动的方法，所述钻夹头包括后体、前体和夹爪，其特征在于，该方法包括：使所述后体能够相对于所述前体转动，以使所述后体能够驱动所述夹爪运动；在所述后体与所述前体之间设置有离合装置，以接合或断开所述后体与所述前体，其中，所述离合装置包括回位弹性件、传动组件和转动部；所述传动组件包括至少两个相对设置的接合部，其中一个所述接合部能够与钻夹头的前体同步转动，另一个所述接合部能够与所述钻夹头的后体同步转动；两个所述接合部之间的接合能够使所述前体与所述后体之间同步转动；所述转动部沿第一方向的转动能够使所述回位弹性件被压缩，以使两个所述接合部之间相断开；所述转动部沿第二方向的转动能够使被压缩的所述回位弹性件复位，以使得两个所述接合部之间相接合。
PCT/CN2019/088564 2019-04-28 2019-05-27 离合装置、钻夹头、动力工具和钻夹头双向转动的方法 WO2020220420A1 (zh)

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