[go: up one dir, main page]

WO2014082194A1 - Mandrin de perçage conique interne à verrouillage automatique - Google Patents

Mandrin de perçage conique interne à verrouillage automatique Download PDF

Info

Publication number
WO2014082194A1
WO2014082194A1 PCT/CN2012/085308 CN2012085308W WO2014082194A1 WO 2014082194 A1 WO2014082194 A1 WO 2014082194A1 CN 2012085308 W CN2012085308 W CN 2012085308W WO 2014082194 A1 WO2014082194 A1 WO 2014082194A1
Authority
WO
WIPO (PCT)
Prior art keywords
drill
self
rotating sleeve
locking
drill chuck
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2012/085308
Other languages
English (en)
Chinese (zh)
Inventor
周文华
赵强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Sanou Machinery Co Ltd
Original Assignee
Zhejiang Sanou Machinery Co Ltd
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 Zhejiang Sanou Machinery Co Ltd filed Critical Zhejiang Sanou Machinery Co Ltd
Priority to PCT/CN2012/085308 priority Critical patent/WO2014082194A1/fr
Publication of WO2014082194A1 publication Critical patent/WO2014082194A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • 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
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/38—Keyless chucks for hand tools

Definitions

  • the utility model relates to an inner cone drill chuck. Background technique
  • the inner taper chuck is provided with a connecting body that is coupled with the driving machine, and the rear portion of the connecting body is provided with a connecting hole for connecting with the driving machine, and the front end of the connecting body is a tapered head and is in a cone
  • An external thread is disposed on the head
  • the drill chuck is further provided with a drill body rotatable relative to the connecting body, the drill body is sleeved outside the connecting body, and the drill body is provided with a jaw hole distributed around the axis of the connecting hole.
  • a jaw of the drill chuck is threadedly coupled to the external thread through the jaw bore, the threaded thread being a reverse thread.
  • the inner taper chuck Since the thread of the inner taper chuck is a reverse thread, the inner taper chuck has a self-tightening function, but in actual use, there is also a phenomenon of instantaneous self-tightening due to the reverse impact of the drill, so that The clamp is loosely clamped. Summary of the invention
  • the technical problem to be solved by the utility model is to provide a self-locking inner cone drill chuck to further ensure reliable clamping of the drilling tool by the drill chuck during work. Therefore, the utility model adopts the following technical solutions:
  • the utility model is provided with a connecting body which is matched with the driving machine, and the rear part of the connecting body is provided with a connecting hole for connecting with the driving machine, and the front end of the connecting body is tapered
  • the head is provided with an external thread on the conical head
  • the drill chuck is further provided with a drill body rotatable relative to the connecting body, the drill body is sleeved outside the connecting body, and the drill body is provided with a clip distributed around the axis of the connecting hole a claw hole, the jaw of the drill chuck is threadedly connected to the external thread through the jaw hole, the threaded thread is a left-hand thread;
  • the drill chuck is provided with a rotation coaxial with the connecting body
  • the sleeve is disposed outside the connecting
  • the spring piece is set a locking end and a protrusion engaged with the cam, the ratchet is arranged to move synchronously with the connecting body, the spring piece is arranged to move synchronously with the drilling body;
  • the drilling body has an indexing groove, the rotation
  • the sleeve is equipped with a key that cooperates with the indexing groove so that the rotating sleeve can rotate the drill body in both the forward and reverse directions, and the length of the indexing groove enables the rotating sleeve and the key to be rotated relative to the drill body An angle that causes the locking end of the spring leaf to transition between insertion into the ratchet and withdrawal from the ratchet.
  • the rotating sleeve is provided with a locking groove corresponding to the spring piece, and two rotation grooves are provided at an angle rotated by the rotating sleeve when inserted between the ratchet teeth and withdrawn from the ratchet teeth.
  • the spring piece is provided with a protrusion that cooperates with the positioning groove.
  • the present invention is provided with an inner sleeve that rotates synchronously with the drill body, and the spring piece is caught in a hole in the inner sleeve.
  • the utility model can also solve the above technical problem by adopting the following technical solutions:
  • the utility model is provided with a connecting body which is matched with the driving machine, and the rear part of the connecting body is provided with a connecting hole for connecting with the driving machine, and the front end of the connecting body a conical head and an external thread on the conical head,
  • the drill chuck further provided with a drill body rotatable relative to the connecting body, the drill body is sleeved outside the connecting body, and the drill body is provided with an axis surrounding the connecting hole a distributed jaw hole through which the jaw of the drill chuck is screwed to the external thread, the threaded thread is a left-hand thread;
  • the drill chuck is provided with the connector a rotating sleeve of the shaft, the rotating sleeve is outside the connecting body, and a self-locking structure is arranged between the rotating sleeve and the connecting body, the self-locking structure comprises a ring of ratchet teeth, a spring
  • the rotating sleeve is provided with a locking groove corresponding to the spring piece, and two rotation grooves are provided at an angle rotated by the rotating sleeve when inserted between the ratchet teeth and withdrawn from the ratchet teeth.
  • the spring piece is provided with a protrusion that cooperates with the positioning groove.
  • the spring piece is sleeved on the outside of the connecting body, behind the spring piece, the drill chuck
  • the middle sleeve is sleeved outside the tail of the connecting body, and the middle sleeve and the connecting body are connected together for synchronous movement, and the spring piece and the middle sleeve are connected together for synchronous movement.
  • the utility model has a self-locking function.
  • the rotary sleeve, the drill body and the connecting body of the drill chuck are in a locked state, and once the drilling tool is subjected to a reverse impact, the connecting body reversely rotates,
  • the lock mechanism can rotate synchronously with the rotating sleeve and the drill body, thereby avoiding the possibility of loose clamping of the drill chuck, further ensuring reliable clamping of the drill by the drill chuck during work; and when actively removing the drill Then, the self-locking state can be released by rotating the rotating sleeve in the reverse direction.
  • the connecting body is opened rearward from a front end thereof with a front hole section coaxial with the connecting hole, and the front hole section penetrates or passes through the connecting body section where the external thread is located.
  • the connecting body is opened rearward from the front end thereof with a groove extending through the wall of the front opening, and the depth of the groove reaches the external thread or passes through the external thread all the way.
  • the utility model has one or more of the grooves, and the plurality of grooves have the same depth. Thus, the utility model does not affect the self-tightening function of the inner cone drill chuck and the above self-locking function, and at the same time makes the operation of the inner cone drill chuck to loosen the drilling tool relatively easy.
  • the force of the inner cone drill chuck holding the drill is increasing due to the load change and the continuous action of the inertia.
  • the mating force of the thread connecting the external thread and the claw is getting larger and larger, due to the front hole of the connecting body
  • the groove has a slight elastic deformation property of the hole wall in the region where the external thread on the connecting body is located, and as the force is increased, the hole wall of the front hole segment is slightly deformed toward the center of the connecting body, so that the thread contact The surface is smaller than normal, and the contact surface is small and the friction between them is small, so that the inner cone drill chuck can loosen the operation of the drill.
  • Fig. 1 is a schematic view showing the outline of a first embodiment of the present invention.
  • Fig. 2 is a cross-sectional view taken along line A-A of Fig. 1 showing the main internal structure of the drill chuck.
  • Fig. 3 is an exploded view of the embodiment 1, showing the mounting sequence of the components of the drill chuck and the outer shape of the components.
  • Fig. 4 is a cross-sectional view taken along line BB of Fig. 1 when the embodiment 1 is in a self-locking state.
  • Fig. 5 is a cross-sectional view taken along line BB of Fig. 1 when the embodiment 1 is in a non-self-locking state.
  • Fig. 6 is a cross-sectional view taken along line C-C of Fig. 1 when the embodiment 1 is in a self-locking state.
  • Fig. 7 is a cross-sectional view taken along line C-C of Fig. 1 when the embodiment 1 is in a non-self-locking state.
  • Figure 8 is a three-dimensional perspective view of the rotary sleeve of the embodiment of Figure 1.
  • Figure 9 is a three-dimensional perspective view of the drill body in the embodiment of Figure 1.
  • Figure 10 is a three-dimensional perspective view of the inner sleeve of the embodiment of Figure 1.
  • Figure 11 is a cross-sectional view showing a second embodiment of the present invention.
  • Figure 12 is an exploded view of Embodiment 2.
  • Figure 13 is a cross-sectional view taken along line D-D of Figure 11 when the embodiment 2 is in a self-locking state.
  • Fig. 14 is a cross-sectional view taken along line E-E of Fig. 11 when the embodiment 2 is in the self-locking state.
  • Fig. 15 is a cross-sectional view taken along line F-F of Fig. 11 when the embodiment 2 is in the self-locking state.
  • Figure 16 is a three-dimensional perspective view of the rotary sleeve of the embodiment of Figure 11;
  • Figure 17 is a three-dimensional perspective view of the middle sleeve of the embodiment shown in Figure 11.
  • Figure 18 is a three-dimensional perspective view of the spring piece in the embodiment of Figure 11.
  • Figure 19 is a three-dimensional perspective view of the ring gear of the embodiment shown in Figure 11. detailed description
  • Embodiment 1 Referring to Figures 1-10.
  • the utility model is provided with a connecting body 1 which is coupled with a driving machine.
  • the rear part of the connecting body 1 is provided with a connecting hole 11 for connecting with a driving machine.
  • the front end of the connecting body is a conical head and is arranged on the conical head.
  • the drill chuck is further provided with a drill body 2 rotatable relative to the connecting body 1, the drill body 2 is sleeved outside the connecting body 1, and the drill body 2 is provided with a jaw distributed around the axis of the connecting hole a hole 23, the jaw 4 of the drill chuck is threadedly connected to the external thread 16 through the jaw hole 23, the threaded thread is a left-hand thread;
  • the drill chuck is provided with the connector a rotating sleeve 3 of the shaft, the rotating sleeve 3 is outside the connecting body 1, and a self-locking structure is arranged between the rotating sleeve and the connecting body, the self-locking structure comprises a ring of ratchet teeth 15, a spring piece 6, and is arranged a cam on the rotating sleeve that controls the working of the spring piece, the spring piece is provided with a locking end 62 and a cam-fitted projection 61, the ratchet is arranged to move synchronously with the connecting body,
  • the ratchet teeth 15 are directly formed on the connecting body 1, and the ratchet teeth can also be formed as a ring gear and fixed to the connecting body 1.
  • the cam may be formed directly on the inner surface of the rotating sleeve, and a cam surface 32 of the cam is formed by a section of the inner surface of the rotating sleeve.
  • the locking sleeve is provided with a corresponding spring leaf, and the locking end is provided with two positioning grooves 33, 34 when the locking sleeve is inserted between the ratchet teeth and the two teeth are withdrawn from the ratchet.
  • the spring piece is provided with a projection 63 that cooperates with the positioning groove.
  • the utility model is provided with an inner sleeve 8 which rotates synchronously with the drill body, and is connected with the groove 26 on the drill body 2 through the key 83, and the inner sleeve 8 and the drill body 2 are synchronously rotated, and the spring piece passes through the convexity thereon. 61, 63 are stuck in the holes 81, 82 in the inner sleeve.
  • the drill body is connected to the inner sleeve 8 which rotates synchronously with the protrusion 8 of the spring piece.
  • the drill body has an indexing groove 25, and the rotating sleeve is provided with a key 31 matched with the indexing groove so that the rotating sleeve 3 can drive the drill body 2 to rotate in both the forward and reverse directions.
  • the connecting body is opened rearward from a front end thereof with a front hole section 12 coaxial with the connecting hole, and the front hole section 12 invades or passes through a connecting body section where the external thread 16 is located,
  • the connecting body opens rearwardly from its front end with a groove 13 extending through the wall of the front opening, the depth of the groove 13 reaching the external thread or continuing through the external thread.
  • the utility model can be provided with one or more of the grooves 13 as long as the wall of the front hole section 12 of the connecting body can be slightly deformed in the direction of the connection center under the action of the reaction force of the jaws, and the deformation belongs to The elastic deformation can be restored in time after the reaction force disappears.
  • the number of the plurality of slots 13 can be Is 2, 3, 4 or more.
  • the plurality of grooves 13 may be evenly distributed along the circumferential direction of the front hole portion 12, and the depths of the plurality of grooves 13 are preferably uniform.
  • Reference numeral 5 is a back cover that is fixed to the connecting body.
  • Reference numeral 41 is a thread on the jaw that engages with the outer thread 16.
  • Reference numeral 9 is a ball that axially positions the drill body and the connecting body. Embodiment 2, referring to Figures 11-19.
  • the self-locking structure comprises a ring of ratchet teeth 801, a spring piece 60, a cam working on the rotating sleeve and a control spring piece, the spring piece is provided with a locking end 602 and a protrusion 603 cooperating with the cam, the spine
  • the tooth 801 is arranged to move synchronously with the drill body 2
  • the spring piece 60 is arranged to move synchronously with the connecting body 1;
  • the drill body 2 has an indexing groove 25, and the rotating sleeve 3 is equipped with a rotating
  • the key 31 of the position groove 25 enables the rotating sleeve to rotate the drill body in both the forward and reverse directions, and the length of the indexing groove 25 enables the rotating sleeve 3 and the key 31 to be rotated relative to the drill body 2
  • the angle causes the locking end 602 of the spring leaf to transition between insertion of the ratchet teeth 801 and withdrawal from the ratchet teeth 801.
  • the locking sleeve is provided with a corresponding spring leaf, and the locking end is provided with two positioning grooves 33, 34 when the locking sleeve is inserted between the ratchet teeth and the two teeth are withdrawn from the ratchet.
  • the spring piece is provided with a protrusion 601 that cooperates with the positioning groove.
  • the one-circle ratchet 801 is formed on the inner surface of the ring member 80, and the ring member 80 is inserted into the groove 26 on the drill body by the key 802 to be connected and synchronized.
  • the spring piece 60 is sleeved on the connecting body 1 , and behind the spring piece 60 , the drill chuck is provided with a middle sleeve 10 which is sleeved outside the tail of the connecting body, and the middle sleeve and the connecting body are connected Synchronously moving together, the spring leaf 60 and the middle sleeve are coupled to move synchronously by the key 604 on the spring piece 60 and the slot 101 in the middle sleeve 10.
  • Reference numeral 92 is a ball between the spring piece 60 and the ring member 80.

Landscapes

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

Abstract

L'invention concerne un mandrin de perçage conique interne à verrouillage automatique doté d'un corps de raccordement (1) correspondant à, et raccordé à, une machine d'entraînement. Un trou de raccordement (11) pour le raccordement à la machine d'entraînement est agencé au niveau d'une partie arrière du corps de raccordement (1). Une extrémité avant du corps de raccordement (1) est une tête conique et un filetage externe (16) est agencé sur la tête conique. Le mandrin de perçage est également doté d'un corps de perçage (2) qui peut entrer en rotation par rapport au corps de raccordement (1). Le corps de perçage (2) est manchonné sur le corps de raccordement (1). Des trous de mâchoires de serrage (23) répartis autour d'un axe du trou de raccordement sont agencés dans le corps de perçage (2). Des mâchoires de serrage (4) du mandrin de perçage traversent les trous de mâchoires de serrage (23) et sont raccordées au filetage externe (16) d'une manière filetée. Un filetage auquel le filetage se raccorde est un filetage de côté gauche. Le mandrin de perçage est doté d'un manchon rotatif (3) coaxial au corps de raccordement (1). Le manchon rotatif (3) est situé à l'extérieur du corps de perçage (1). Une structure de verrouillage automatique est agencée entre le manchon rotatif (3) et le corps de raccordement (1). La structure de verrouillage automatique comprend un rochet (15), un ressort à lames (6) et une came agencés sur le manchon rotatif (3) pour commander le fonctionnement du ressort. Le ressort à lames (6) est doté d'une extrémité de verrouillage (62) et d'une saillie (61) correspondant à la came. Le rochet (15) correspond au corps de raccordement (1) et se déplace de façon synchrone avec celui-ci. Le ressort à lames (6) correspond au corps de perçage (2) et se déplace de façon synchrone avec celui-ci. Une rainure de transposition (25) est agencée sur le corps de perçage (2). Une clé (31) correspondant à la rainure de transposition (25) est agencée sur le manchon rotatif (3) pour permettre au manchon rotatif (3) d'entraîner le corps de perçage (2) en rotation dans des directions positive et négative. Une longueur de la rainure de transposition (25) permet au manchon rotatif (3) et à la clé (31) d'entrer en rotation en formant un certain angle avec le corps de perçage (2), de sorte que l'extrémité de verrouillage (62) du ressort à lames (6) commute entre un état inséré dans le rochet (15) et un état rétracté depuis le rochet (15).
PCT/CN2012/085308 2012-11-27 2012-11-27 Mandrin de perçage conique interne à verrouillage automatique Ceased WO2014082194A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/085308 WO2014082194A1 (fr) 2012-11-27 2012-11-27 Mandrin de perçage conique interne à verrouillage automatique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/085308 WO2014082194A1 (fr) 2012-11-27 2012-11-27 Mandrin de perçage conique interne à verrouillage automatique

Publications (1)

Publication Number Publication Date
WO2014082194A1 true WO2014082194A1 (fr) 2014-06-05

Family

ID=50827008

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/085308 Ceased WO2014082194A1 (fr) 2012-11-27 2012-11-27 Mandrin de perçage conique interne à verrouillage automatique

Country Status (1)

Country Link
WO (1) WO2014082194A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110944782A (zh) * 2017-05-26 2020-03-31 莱维克龙有限公司 自锁空心转轴夹紧机构
CN115343367A (zh) * 2021-05-12 2022-11-15 中移(成都)信息通信科技有限公司 一种夹持设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1390669A (zh) * 2001-06-10 2003-01-15 山东威达机械股份有限公司 自锁钻夹头
CN101081444A (zh) * 2007-04-20 2007-12-05 浙江三鸥机械股份有限公司 一种自锁式手紧钻夹头
CN201091927Y (zh) * 2007-05-30 2008-07-30 浙江三鸥机械股份有限公司 一种自锁式手紧钻夹头
WO2011095725A1 (fr) * 2010-02-08 2011-08-11 Etablissements Amyot Mandrin porte-outil pour l'équipement d'une machine tournante

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1390669A (zh) * 2001-06-10 2003-01-15 山东威达机械股份有限公司 自锁钻夹头
CN101081444A (zh) * 2007-04-20 2007-12-05 浙江三鸥机械股份有限公司 一种自锁式手紧钻夹头
CN201091927Y (zh) * 2007-05-30 2008-07-30 浙江三鸥机械股份有限公司 一种自锁式手紧钻夹头
WO2011095725A1 (fr) * 2010-02-08 2011-08-11 Etablissements Amyot Mandrin porte-outil pour l'équipement d'une machine tournante

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110944782A (zh) * 2017-05-26 2020-03-31 莱维克龙有限公司 自锁空心转轴夹紧机构
CN110944782B (zh) * 2017-05-26 2021-11-02 莱维克龙有限公司 自锁空心转轴夹紧机构
CN115343367A (zh) * 2021-05-12 2022-11-15 中移(成都)信息通信科技有限公司 一种夹持设备

Similar Documents

Publication Publication Date Title
US8844941B1 (en) Adaptor for holding a threading device
CN102896594B (zh) 前置式快动台虎钳
US8262096B2 (en) Self-tightening drill chuck
WO2010057397A1 (fr) Mandrin pour mèche à serrage manuel et auto-verrouillage
WO2013075599A1 (fr) Mandrin de perçage à cône intérieur antiblocage
CA2942984C (fr) Mecanisme de mandrin a raccordement rapide pour pointes de tournevis, et analogues
US1503809A (en) Chuck with wedge jaws
CN102699839B (zh) 快速开合台钳及快速滑移和咬合部件
JP5365316B2 (ja) プラグ長手方向二点把持ハンド装置
WO2017215404A1 (fr) Étau à coulissement rapide et partie de mise en prise à coulissement rapide
US10272499B2 (en) Self-locking drill chuck
WO2014082194A1 (fr) Mandrin de perçage conique interne à verrouillage automatique
CN201012399Y (zh) 一种新颖自锁式手紧钻夹头
JP5204992B2 (ja) チャック装置
US10252347B2 (en) Self-locking drill chuck
CN102294497A (zh) 组合式自夹紧和键夹紧钻头卡盘
JP7197224B2 (ja) 把持工具、および、把持工具の使用方法
JPS61284305A (ja) 手持ち工具用のドリルチヤツク
CN201201061Y (zh) 一种自锁式手紧钻夹头
CN202462356U (zh) 一种断裂丝锥的拔取工具
CN206811191U (zh) 电钻夹头
CN215110389U (zh) 一种直型玻璃棒主轴锁紧结构
CN201012397Y (zh) 一种自锁式手紧钻夹头
CN109530742B (zh) 卡盘式手紧扳手式增力夹头
CN201033370Y (zh) 一种带锁自紧钻夹头

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12889185

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12889185

Country of ref document: EP

Kind code of ref document: A1