CN110842620A - Reinforced mechanical type pull claw mechanism - Google Patents
Reinforced mechanical type pull claw mechanism Download PDFInfo
- Publication number
- CN110842620A CN110842620A CN201911288265.5A CN201911288265A CN110842620A CN 110842620 A CN110842620 A CN 110842620A CN 201911288265 A CN201911288265 A CN 201911288265A CN 110842620 A CN110842620 A CN 110842620A
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- connecting rod
- claw
- conical surface
- gripper
- rear end
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- 210000000078 claw Anatomy 0.000 title claims abstract description 76
- 230000007246 mechanism Effects 0.000 title claims abstract description 21
- 230000009471 action Effects 0.000 claims abstract description 18
- 230000006872 improvement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003578 releasing effect Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
Abstract
The invention discloses a reinforced mechanical claw pulling mechanism which comprises a rotor, a front connecting rod, a cutter handle connecting rod and a plurality of claw pulling sheets, wherein the front connecting rod is connected with the cutter handle connecting rod; the front-end conical surface part is formed on the outer side of the front end of each claw piece, the front-end resisting part is formed on the inner wall of the rotor, the front-end conical surface part is positioned on the front side of the front resisting part, when the front connecting rod drives the plurality of claw pieces to slide backwards, the front-end conical surface part resists the front resisting part, the front ends of the plurality of claw pieces are driven to be close by the front resisting part and clamp the cutter handle connecting rod, and then cutter clamping action is executed; the rear end outside of the tab piece is formed with rear end conical surface portion, and the inner wall of rotor is formed with back retaining portion, and back retaining portion is located the front side of front end conical surface portion, and when the front connecting rod ordered about a plurality of tab pieces and slided forward, rear end conical surface portion kept off in back retaining portion, borrows the front end of ordering about a plurality of tab pieces by back retaining portion to open, and then carries out the loose sword action. The invention can make the pulling claw execute the action of loosening and clamping the cutter accurately, and can reduce the hard friction between the pulling claw and the rotor.
Description
Technical Field
The invention relates to a main shaft, in particular to a reinforced mechanical type pull claw mechanism.
Background
The pull claw in the prior art is mainly dependent on the elastic force applied by a spring, and performs loosening or clamping actions in the process of forward and backward sliding of the pull claw, so that the clamping and loosening of the cutter are completed.
Disclosure of Invention
The invention aims to solve the technical problem of providing an enhanced mechanical pulling claw mechanism which can enable a pulling claw to accurately execute the actions of loosening and clamping a cutter and can reduce hard friction between the pulling claw and a rotor.
In order to solve the technical problems, the invention adopts the following technical scheme.
A reinforced mechanical claw pulling mechanism comprises a rotor, wherein a front connecting rod, a cutter handle connecting rod and a plurality of claw pulling sheets are arranged in the rotor, the rear end of the front connecting rod is used for connecting a pull rod, the front end of the cutter handle connecting rod is used for connecting a cutter handle, the front ends of the claw pulling sheets are connected with the cutter handle connecting rod in an encircling mode, the rear ends of the claw pulling sheets are connected with the front connecting rod in an encircling mode, and the front connecting rod drives the claw pulling sheets to slide back and forth; the front-end conical surface part is formed on the outer side of the front end of each claw pulling piece, the front-end resisting part is formed on the inner wall of the rotor and is positioned on the front side of the front resisting part, when the front connecting rod drives the plurality of claw pulling pieces to slide backwards, the front-end conical surface part resists the front resisting part, the front ends of the plurality of claw pulling pieces are driven to be close by the front resisting part and clamp the cutter handle connecting rod, and then cutter clamping action is executed; the outer side of the rear end of each claw pulling piece is provided with a rear end conical surface portion, the inner wall of the rotor is provided with a rear resisting portion, the rear resisting portion is located on the front side of the front end conical surface portion, when the front connecting rod drives the claw pulling pieces to slide forwards, the rear end conical surface portion resists the rear resisting portion, the rear resisting portion drives the front ends of the claw pulling pieces to open, and therefore cutter loosening action is executed.
Preferably, the inner side wall of the pull claw piece is formed with an inner step portion, the outer side wall of the front connecting rod is formed with an outer step portion, the outer step portion is located at the front side of the inner step portion, and when the front connecting rod slides backwards, the outer step portion applies thrust to the inner step portion, so that the pull claw pieces are driven to slide backwards.
Preferably, the outer side wall of the front connecting rod is formed with an annular flange protruding outwards, the front end surface of the annular flange is aligned with the rear end of the pull claw piece, and when the front connecting rod slides forwards, the annular flange applies thrust to the rear end of the pull claw piece, so as to drive the pull claw pieces to slide forwards.
Preferably, the rear end of the tab piece is formed with a rounded corner-shaped end portion.
Preferably, the outer side of the plurality of claw pieces is sleeved with a spring ring, the spring ring is close to the rear ends of the plurality of claw pieces, and when the front connecting rod drives the plurality of claw pieces to slide forwards, the front ends of the plurality of claw pieces are driven to expand by the elastic force applied by the spring ring.
Preferably, a convex block is formed at the rear end of the handle connecting rod, an inner clamping portion is formed on the inner side wall of each pull claw piece, and when the front ends of the pull claw pieces are closed and the handle connecting rod is clamped, the inner clamping portion abuts against the front end of the convex block.
Preferably, the outer side wall of the pull claw piece is provided with a groove, and the spring ring is clamped in the groove.
Preferably, the groove is located on a front side of the rear end conical surface portion.
Preferably, the inner side of the front end of the pulling claw piece is formed with an inner conical surface portion, and the diameter of the inner conical surface portion is gradually reduced from front to back.
Preferably, the number of the pull claw pieces is four, six or eight.
In the enhanced mechanical claw pulling mechanism disclosed by the invention, the front end of the claw pulling sheet is provided with a front end conical surface part, the inner wall of the rotor is provided with a front resisting part which is matched with the front end conical surface part, the rear end of the pull claw piece is provided with a rear end conical surface part, the inner wall of the rotor is provided with a rear resisting part which is matched with the rear end conical surface part, when the front connecting rod drives the plurality of pulling claw pieces to slide backwards or forwards, the rotor has the functions of resisting and guiding the front end conical surface part or the rear end conical surface part, compared with the prior art, the invention mainly depends on the slope leading-in function to drive the pull claw sheets to clamp or loosen the cutter, thereby effectively avoiding the hard friction caused by the fatigue of the spring, not only ensuring the action precision of the main shaft, but also being beneficial to improving the service life of the main shaft.
Drawings
FIG. 1 is a cross-sectional view of a jaw pulling mechanism of the present invention performing a knife clamping action;
FIG. 2 is a cross-sectional view of the jaw pulling mechanism of the present invention performing a knife releasing action;
fig. 3 is a perspective view of a plurality of tab pieces.
Detailed Description
The invention is described in more detail below with reference to the figures and examples.
The invention discloses a reinforced mechanical type claw pulling mechanism, which is shown by combining figures 1 to 3 and comprises a rotor 1, wherein a front connecting rod 2, a handle connecting rod 3 and a plurality of claw pulling sheets 4 are arranged in the rotor 1, the rear end of the front connecting rod 2 is used for connecting a pull rod 5, the front end of the handle connecting rod 3 is used for connecting a handle 6, the front ends of the claw pulling sheets 4 are encircled on the handle connecting rod 3, the rear ends of the claw pulling sheets 4 are encircled on the front connecting rod 2, and the front connecting rod 2 drives the claw pulling sheets 4 to slide back and forth;
a front-end conical surface part 41 is formed on the outer side of the front end of each claw pulling piece 4, a front resisting part 10 is formed on the inner wall of the rotor 1, the front-end conical surface part 41 is positioned on the front side of the front resisting part 10, when the front connecting rod 2 drives the plurality of claw pulling pieces 4 to slide backwards, the front-end conical surface part 41 resists the front resisting part 10, the front ends of the plurality of claw pulling pieces 4 are driven to be close by the front resisting part 10 and clamp the cutter handle connecting rod 3, and then cutter clamping action is executed;
the outer side of the rear end of each claw piece 4 is provided with a rear end conical surface portion 43, the inner wall of the rotor 1 is provided with a rear abutting portion 11, the rear abutting portion 11 is located on the front side of the front end conical surface portion 41, when the front connecting rod 2 drives the claw pieces 4 to slide forwards, the rear end conical surface portion 43 abuts against the rear abutting portion 11, the rear abutting portion 11 drives the front ends of the claw pieces 4 to open, and then cutter loosening action is executed.
In the above structure, the front end of the tab piece 4 is provided with the front end conical surface portion 41, the inner wall of the rotor 1 is provided with the front resisting portion 10 matched with the front end conical surface portion 41, the rear end of the tab piece 4 is provided with the rear end conical surface portion 43, the inner wall of the rotor 1 is provided with the rear resisting portion 11 matched with the rear end conical surface portion 43, when the front connecting rod 2 drives the tab pieces 4 to slide backwards or forwards, the front end conical surface portion 41 or the rear end conical surface portion 43 is resisted and guided by the rotor 1, and then the tab pieces 4 are driven to clamp or open, compared with the prior art, the present invention mainly drives the tab pieces 4 to perform a knife clamping or knife loosening action by relying on an inclined plane guiding action, so that the hard friction caused by spring fatigue is effectively avoided, and the action precision of the spindle is ensured, but also contributes to the improvement of the service life of the main shaft.
In order to apply a pushing and pulling force to the tab piece 4, in this embodiment, an inner step portion 40 is formed on an inner sidewall of the tab piece 4, an outer step portion 20 is formed on an outer sidewall of the front connecting rod 2, the outer step portion 20 is located in front of the inner step portion 40, and when the front connecting rod 2 slides backward, the outer step portion 20 applies a pushing force to the inner step portion 40, thereby driving the tab pieces 4 to slide backward.
Further, an annular flange 21 protruding outwards is formed on the outer side wall of the front connecting rod 2, the front end surface of the annular flange 21 is aligned with the rear end of the pull tab piece 4, and when the front connecting rod 2 slides forwards, the annular flange 21 applies a pushing force to the rear end of the pull tab piece 4, so that the pull tab pieces 4 are driven to slide forwards.
In a preferred configuration, the rear end of the tab piece 4 is formed with a rounded end 42. The rounded end 42 reduces the friction area between the annular flange 21 and the rear end of the tab piece 4, thereby reducing wear. Meanwhile, the invention can enable the pulling claw to more smoothly execute clamping and opening actions.
Preferably, the plurality of claw pieces 4 are sleeved with a spring ring 7, the spring ring 7 is close to the rear ends of the plurality of claw pieces 4, and when the front connecting rod 2 drives the plurality of claw pieces 4 to slide forwards, the front ends of the plurality of claw pieces 4 are driven to expand by the elastic force applied by the spring ring 7.
The spring ring 7 can play a role in elastic compensation, can apply auxiliary elasticity to the plurality of claw pulling sheets 4 when the cutter is loosened or clamped, and particularly can utilize the matching of conical surfaces at the front end and the rear end with the rotor after the spring ring 7 is fatigued, so that the claw pulling mechanism can still execute the cutter loosening action, and the normal work of the spindle is ensured.
In order to better clamp the handle link 3, in this embodiment, a protrusion 30 is formed at the rear end of the handle link 3, an inner clamping portion 44 is formed on the inner side wall of the tab piece 4, and when the front ends of the tab pieces 4 are closed and the handle link 3 is clamped, the inner clamping portion 44 abuts against the front end of the protrusion 30.
As a preferable mode, a groove 45 is formed in the outer side wall of the tab piece 4, and the spring ring 7 is clamped in the groove 45.
Further, the groove 45 is located on the front side of the rear-end tapered surface portion 43.
The spring ring 7 is accommodated by the groove 45, so that the spring ring 7 can be effectively hidden, and the spring ring 7 is prevented from being worn.
In order to facilitate the insertion of the handle link 3, in the present embodiment, the inner side of the front end of the pulling claw piece 4 is formed with an inner tapered surface portion 46, and the diameter of the inner tapered surface portion 46 is gradually reduced from front to back.
Preferably, the number of the pull claw pieces 4 is four, six or eight.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the technical scope of the present invention should be included in the scope of the present invention.
Claims (10)
1. The enhanced mechanical claw pulling mechanism is characterized by comprising a rotor (1), wherein a front connecting rod (2), a handle connecting rod (3) and a plurality of claw pulling sheets (4) are arranged in the rotor (1), the rear end of the front connecting rod (2) is used for connecting a pull rod (5), the front end of the handle connecting rod (3) is used for connecting a handle (6), the front ends of the claw pulling sheets (4) are connected to the handle connecting rod (3) in an encircling manner, the rear ends of the claw pulling sheets (4) are connected to the front connecting rod (2) in an encircling manner, and the front connecting rod (2) drives the claw pulling sheets (4) to slide back and forth;
a front-end conical surface part (41) is formed on the outer side of the front end of each claw pulling piece (4), a front resisting part (10) is formed on the inner wall of the rotor (1), the front-end conical surface part (41) is located on the front side of the front resisting part (10), when the front connecting rod (2) drives the claw pulling pieces (4) to slide backwards, the front-end conical surface part (41) resists the front resisting part (10), the front ends of the claw pulling pieces (4) are driven to be close together by the front resisting part (10) and clamp the cutter handle connecting rod (3), and then cutter clamping action is executed;
the outer side of the rear end of each claw pulling piece (4) is provided with a rear end conical surface portion (43), the inner wall of the rotor (1) is provided with a rear abutting portion (11), the rear abutting portion (11) is located on the front side of the front end conical surface portion (41), when the front connecting rod (2) drives the claw pulling pieces (4) to slide forwards, the rear end conical surface portion (43) abuts against the rear abutting portion (11), the rear abutting portion (11) drives the front ends of the claw pulling pieces (4) to open, and then cutter loosening action is executed.
2. The spring-enhanced mechanical gripper mechanism according to claim 1, wherein the inner side wall of the gripper plate (4) is formed with an inner step portion (40), the outer side wall of the front connecting rod (2) is formed with an outer step portion (20), the outer step portion (20) is located at the front side of the inner step portion (40), and when the front connecting rod (2) slides backward, the outer step portion (20) applies a pushing force to the inner step portion (40), thereby driving the plurality of gripper plates (4) to slide backward.
3. The spring-enhanced mechanical gripper mechanism according to claim 1, wherein the outer side wall of the front connecting rod (2) is formed with an outwardly protruding annular flange (21), the front end surface of the annular flange (21) is aligned with the rear end of the gripper plate (4), and when the front connecting rod (2) slides forward, the annular flange (21) applies a pushing force to the rear end of the gripper plate (4) to drive the plurality of gripper plates (4) to slide forward.
4. A spring enhanced mechanical pull pawl mechanism according to claim 3, wherein the rear end of the pull pawl plate (4) is formed with a rounded corner-shaped end portion (42).
5. The spring-enhanced mechanical gripper mechanism according to claim 1, wherein a spring ring (7) is sleeved outside the plurality of gripper plates (4), the spring ring (7) is close to the rear ends of the plurality of gripper plates (4), and when the front connecting rod (2) drives the plurality of gripper plates (4) to slide forward, the front ends of the plurality of gripper plates (4) are driven to expand by the elastic force exerted by the spring ring (7).
6. The spring-enhanced mechanical gripper mechanism according to claim 1, wherein a protrusion (30) is formed at the rear end of the handle link (3), and an inner clamping portion (44) is formed at the inner side wall of the gripper plate (4), and when the front ends of the plurality of gripper plates (4) are closed and the handle link (3) is clamped, the inner clamping portion (44) abuts against the front end of the protrusion (30).
7. The spring-enhanced mechanical gripper mechanism according to claim 5, wherein the outer side wall of the gripper plate (4) is provided with a groove (45), and the spring ring (7) is clamped in the groove (45).
8. A spring enhanced mechanical pawl mechanism according to claim 7, wherein said recess (45) is located on the front side of said rear end tapered portion (43).
9. The spring-enhanced mechanical gripper mechanism according to claim 1, wherein the gripper segments (4) are formed with inner tapered portions (46) inside the front ends thereof, the inner tapered portions (46) being gradually reduced in diameter from front to rear.
10. A spring enhanced mechanical pull pawl mechanism according to claim 1, wherein the number of pull pawl pieces (4) is four, six or eight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911288265.5A CN110842620A (en) | 2019-12-16 | 2019-12-16 | Reinforced mechanical type pull claw mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911288265.5A CN110842620A (en) | 2019-12-16 | 2019-12-16 | Reinforced mechanical type pull claw mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110842620A true CN110842620A (en) | 2020-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911288265.5A Pending CN110842620A (en) | 2019-12-16 | 2019-12-16 | Reinforced mechanical type pull claw mechanism |
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| CN (1) | CN110842620A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112059680A (en) * | 2020-09-16 | 2020-12-11 | 清远市天一数控设备有限公司 | Novel high-speed spindle broach mechanism with self-locking and force-increasing pulling claws |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000126911A (en) * | 1998-10-22 | 2000-05-09 | Nikken Kosakusho Works Ltd | Part clamping device of spindle |
| KR20140005867U (en) * | 2013-05-10 | 2014-11-19 | 주식회사 엘씨엠 | Tool clamping device for machine tool |
| KR20150072642A (en) * | 2013-12-20 | 2015-06-30 | 두산인프라코어 주식회사 | Clamping device |
| CN205928029U (en) * | 2016-08-19 | 2017-02-08 | 深圳市爱贝科精密机械有限公司 | A broach mechanism that is used for high -speed electric main shaft of ball |
| CN110170665A (en) * | 2019-05-21 | 2019-08-27 | 深圳市爱贝科精密机械有限公司 | A kind of tightening structure based on main shaft |
| CN211867231U (en) * | 2019-12-16 | 2020-11-06 | 深圳市爱贝科精密机械有限公司 | Reinforced mechanical type pull claw mechanism |
-
2019
- 2019-12-16 CN CN201911288265.5A patent/CN110842620A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000126911A (en) * | 1998-10-22 | 2000-05-09 | Nikken Kosakusho Works Ltd | Part clamping device of spindle |
| KR20140005867U (en) * | 2013-05-10 | 2014-11-19 | 주식회사 엘씨엠 | Tool clamping device for machine tool |
| KR20150072642A (en) * | 2013-12-20 | 2015-06-30 | 두산인프라코어 주식회사 | Clamping device |
| CN205928029U (en) * | 2016-08-19 | 2017-02-08 | 深圳市爱贝科精密机械有限公司 | A broach mechanism that is used for high -speed electric main shaft of ball |
| CN110170665A (en) * | 2019-05-21 | 2019-08-27 | 深圳市爱贝科精密机械有限公司 | A kind of tightening structure based on main shaft |
| CN211867231U (en) * | 2019-12-16 | 2020-11-06 | 深圳市爱贝科精密机械有限公司 | Reinforced mechanical type pull claw mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112059680A (en) * | 2020-09-16 | 2020-12-11 | 清远市天一数控设备有限公司 | Novel high-speed spindle broach mechanism with self-locking and force-increasing pulling claws |
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