CN112247545A - Diameter changing method of self-locking diameter changing manipulator - Google Patents
Diameter changing method of self-locking diameter changing manipulator Download PDFInfo
- Publication number
- CN112247545A CN112247545A CN202011113407.7A CN202011113407A CN112247545A CN 112247545 A CN112247545 A CN 112247545A CN 202011113407 A CN202011113407 A CN 202011113407A CN 112247545 A CN112247545 A CN 112247545A
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- China
- Prior art keywords
- outer sleeve
- clamping jaw
- screw
- spring
- inclined plane
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- 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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
Abstract
The invention discloses a diameter changing method of a self-locking diameter changing manipulator, which comprises a base and a mechanical arm arranged on the base, wherein a self-locking diameter changing wrench sleeve is arranged at the free end of the mechanical arm; compared with the prior art, the invention drives the first spring to jack the tensioning mandrel through the contact head, so that the tensioning mandrel drives the three clamping jaws to move towards the center, further preliminarily clamps the screw, then the inclined surface protrusion of the outer sleeve is attached to the inclined surface of the clamping jaw by rotating the outer sleeve, further the extrusion clamping jaw moves towards the center, further firmly clamps the screw, realizes self-locking, realizes twice diameter-changing movement of the clamping jaw, can be suitable for screwing screws with different specifications, and has more flexible structure; in addition, the inclined plane protrusion of the outer sleeve is matched with the inclined plane of the clamping jaw, so that the torsion of the outer sleeve is converted into the clamping force of the screw, the transmission of larger torque is realized, and the slipping phenomenon is avoided.
Description
Technical Field
The invention relates to a diameter changing method of a self-locking diameter changing manipulator.
Background
The existing wrench socket can only be used for screwing screws of one specification, and the wrench sockets of different specifications need to be replaced aiming at screws of different specifications, so that the use is inconvenient, and the slip phenomenon is easy to occur when the wrench socket is used for screwing the screws.
Disclosure of Invention
The invention aims to overcome the defects and provide a diameter changing method of a self-locking diameter changing manipulator.
In order to achieve the purpose, the invention adopts the following specific scheme:
the diameter changing method of the self-locking diameter changing manipulator comprises a base and a mechanical arm arranged on the base, wherein a self-locking diameter changing wrench sleeve is arranged at the free end of the mechanical arm.
Self-locking reducing spanner sleeve includes revolves the head, with revolve first fixed connection's outer sleeve, float seat, taut dabber and three interval slip nested clamping jaw at unsteady seat lower extreme soon, the outer sleeve is equipped with first centre bore, float the seat and be located the outer sleeve, and its upper end stretches into first centre bore and through oilless bearing and outer sleeve cooperation, float the seat and be equipped with the second centre bore, the one end of taut dabber stretches into in the second centre bore, the other end of taut dabber is equipped with the third centre bore and corresponds the connecting lug that the clamping jaw set up, is equipped with contact head and first spring in the third centre bore, the lower extreme of contact head stretches out the setting of third centre bore, first spring both ends respectively with taut dabber, contact head fixed connection, taut dabber still overlaps and is equipped with the second spring, the both ends of second spring respectively with float the seat, The connecting lug is abutted, the rigidity of the second spring is smaller than that of the first spring, the clamping jaws are hinged to the three connecting lugs through levers respectively, the inner wall of the outer sleeve is provided with inclined plane protrusions corresponding to the clamping jaws, the outer side walls of the clamping jaws are provided with inclined planes corresponding to the inclined plane protrusions in a matched mode, and when the outer sleeve rotates, the inclined plane protrusions of the outer sleeve are attached to the inclined planes of the clamping jaws and extrude the clamping jaws along the radial direction.
The surface of the inclined plane protrusion of the outer sleeve facing the axial direction is an arc surface, and the inclined plane of the clamping jaw is arranged as an arc inclined plane.
Wherein, the surface of the clamping jaw towards the axial direction of the tensioning mandrel is concave.
And a check ring is also embedded at the upper end of the floating seat and is positioned above the oilless bearing.
Wherein, the screwing head adopts a hexagonal head arrangement.
The invention has the beneficial effects that: compared with the prior art, the invention drives the first spring to jack the tensioning mandrel through the contact head, so that the tensioning mandrel drives the three clamping jaws to move towards the center, further preliminarily clamps the screw, then the inclined surface protrusion of the outer sleeve is attached to the inclined surface of the clamping jaw by rotating the outer sleeve, further the extrusion clamping jaw moves towards the center, further firmly clamps the screw, realizes self-locking, realizes twice diameter-changing movement of the clamping jaw, can be suitable for screwing screws with different specifications, and has more flexible structure; in addition, the inclined plane protrusion of the outer sleeve is matched with the inclined plane of the clamping jaw, so that the torsion of the outer sleeve is converted into the clamping force of the screw, the transmission of larger torque is realized, and the slipping phenomenon is avoided.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a perspective view of a self-locking reducing wrench socket provided in accordance with an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a self-locking reducing wrench socket provided in accordance with an embodiment of the present invention;
FIG. 4 is a bottom view of a self-locking reducing wrench socket provided in accordance with an embodiment of the present invention;
FIG. 5 is a partial schematic structural view of a self-locking reducing wrench socket according to an embodiment of the present invention;
FIG. 6 is a schematic view of a tensioning mandrel and jaw configuration provided by an embodiment of the present invention;
FIG. 7 is a schematic structural view of an outer sleeve provided by an embodiment of the present invention;
FIG. 8 is a schematic diagram of a jaw configuration provided by an embodiment of the present invention;
FIG. 9 is a schematic structural view of another perspective of a clamping jaw provided by an embodiment of the present invention;
FIG. 10 is a schematic structural view of a floating seat provided by an embodiment of the present invention;
FIG. 11 is a schematic structural view of a tensioning mandrel provided by an embodiment of the present invention;
description of reference numerals: a-a mechanical arm;
1-screwing head; 2-an outer sleeve; 21-a first central hole; 22-a beveled protrusion; 3-a floating seat; 31-a second central hole; 4-tensioning the mandrel; 41-third central hole; 42-attachment lugs; 5-clamping jaw; 51-inclined plane; 6-oilless bearing; 7-contact head; 8-a first spring; 9-a second spring; 10-a retainer ring.
Detailed Description
The invention will be described in further detail with reference to the following figures and specific examples, without limiting the scope of the invention.
As shown in fig. 1 to 11, the diameter changing method of the self-locking diameter changing manipulator according to the embodiment includes a base and a manipulator a disposed on the base, wherein a self-locking diameter changing wrench socket is disposed at a free end of the manipulator.
The variable diameter spanner comprises a screwing head 1, an outer sleeve 2 fixedly connected with the screwing head 1, a floating seat 3, a tensioning mandrel 4 and clamping jaws 5 nested at the lower end of the floating seat 3 at intervals in a sliding manner, wherein the outer sleeve is provided with a first center hole 21, the floating seat 3 is positioned in the outer sleeve 2, the upper end of the floating seat extends into the first center hole 21 and is matched with the outer sleeve 2 through an oilless bearing 6, the floating seat 3 is provided with a second center hole 31, one end of the tensioning mandrel 4 extends into the second center hole 31, the other end of the tensioning mandrel 4 is provided with a third center hole 41 and a connecting lug 42 corresponding to the clamping jaw 5, a contact head 7 and a first spring 8 are arranged in the third center hole 41, the lower end of the contact head 7 extends out of the third center hole 41, two ends of the first spring 8 are respectively fixedly connected with the tensioning mandrel 4 and the contact head 7, the tensioning mandrel 4 is further sleeved with a second spring, the two ends of the second spring 9 are respectively abutted against the floating seat 3 and the connecting lugs 42, the rigidity of the second spring 9 is smaller than that of the first spring 8, the three clamping jaws are respectively hinged with the three connecting lugs 42 through levers, the inner wall of the outer sleeve 2 is provided with inclined plane protrusions 22 corresponding to the clamping jaws 5, the outer side wall of the clamping jaw 5 is provided with inclined planes 51 corresponding to the inclined plane protrusions 22 in a matched mode, and when the outer sleeve 2 rotates, the inclined plane protrusions 22 of the outer sleeve 2 are abutted against the inclined planes 51 of the clamping jaws 5 and extrude the clamping jaws 5 along the radial direction.
When the device is used, the outer sleeve 2 is extended downwards until the contact head 7 is contacted with the top surface of the screw, at the moment, the first spring 8 is higher than the second spring 9 in rigidity, the first spring 8 jacks up the tensioning mandrel 4, so that the tensioning mandrel 4 moves upwards, the tensioning mandrel 4 drives the three clamping jaws 5 to approach to the center through the lever, and the outer wall of the screw is clamped, so that the screw is preliminarily clamped; after the clamping jaw 5 clamps the screw, the outer sleeve 2 is driven to rotate through the screwing head 1, the inclined plane protrusion 22 of the outer sleeve 2 is in contact with the inclined plane 51 of the clamping jaw 5, the inclined plane protrusion 22 of the outer sleeve 2 extrudes the clamping jaw 5 under the action of torsion, the clamping jaw 5 is ejected out towards the center, and the screw is further and firmly clamped, at the moment, the outer sleeve 2, the clamping jaw 5 and the floating seat 3 are rigidly connected together to realize the self-locking function, then the screwing head 1 is continuously screwed, and the outer sleeve 2 transmits the screwing torque to the screw, so that the screw is screwed.
In the embodiment, the contact head 7 drives the first spring 8 to jack the tensioning mandrel 4, so that the tensioning mandrel 4 drives the three clamping jaws 5 to move towards the center, and further primarily clamps the screw, and then the outer sleeve 2 is rotated to enable the inclined plane protrusion 22 of the outer sleeve 2 to be attached to the inclined plane 51 of the clamping jaw 5, so that the clamping jaw 5 is extruded to further move towards the center, further and firmly clamp the screw, self-locking is realized, two times of reducing movement of the clamping jaw 5 are realized, the screw tightening device can be suitable for screw tightening of different specifications, and the structure is more flexible; in addition, the inclined plane protrusion 22 of the outer sleeve 2 is matched with the inclined plane 51 of the clamping jaw 5, so that the torsion of the outer sleeve 2 is converted into the clamping force of the screw, the transmission of larger moment is realized, the slipping phenomenon is avoided, and the device is small in size, light in weight, full in mechanical structure, efficient and reliable.
In the present embodiment, as shown in fig. 4 and 7, the surface of the inclined surface protrusion 22 of the outer sleeve 2 facing the axial direction is a circular arc surface, and as shown in fig. 3 and 8, the inclined surface 51 of the clamping jaw 5 is a circular arc inclined surface 51, which is beneficial for the inclined surface protrusion 22 of the outer sleeve 2 to match with the inclined surface 51 of the clamping jaw 5, so that the pressing force of the outer sleeve 2 to the clamping jaw 5 is concentrated in the radial direction, and the clamping is firmer.
In this embodiment, clamping jaw 5 is the concave surface setting towards the axial direction's of taut dabber 4 surface, more does benefit to clamping screw, can effectively prevent the emergence of the phenomenon of skidding when screwing up the screw simultaneously.
In this embodiment, as shown in fig. 3 and 5, a retaining ring 10 is further embedded in the upper end of the floating seat 3, and the retaining ring 10 is located above the oilless bearing 6, so as to further ensure that the floating seat 3 is connected with the outer sleeve 2 more firmly.
In this embodiment, the screwing head 1 is a hexagonal head, which is suitable for more external screwing tools and can transmit larger torque.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present patent application are included in the protection scope of the present patent application.
Claims (3)
1. The diameter changing method of the self-locking diameter changing manipulator is characterized by comprising a base and a mechanical arm (a) arranged on the base, wherein a self-locking diameter changing wrench sleeve is arranged at the free end of the mechanical arm; the variable diameter wrench comprises a screwing head (1), an outer sleeve (2) fixedly connected with the screwing head (1), a floating seat (3), a tensioning mandrel (4) and clamping jaws (5) embedded at the lower end of the floating seat (3) in a sliding mode at three intervals, wherein the outer sleeve is provided with a first central hole (21), the floating seat (3) is located in the outer sleeve (2), the upper end of the floating seat extends into the first central hole (21) and is matched with the outer sleeve (2) through an oilless bearing (6), the floating seat (3) is provided with a second central hole (31), one end of the tensioning mandrel (4) extends into the second central hole (31), the other end of the tensioning mandrel (4) is provided with a third central hole (41) and a connecting lug (42) arranged corresponding to the clamping jaws (5), a contact head (7) and a first spring (8) are arranged in the third central hole (41), and the lower end of the contact head (7) extends out of the third central hole (41), the clamping device is characterized in that two ends of the first spring (8) are fixedly connected with the tensioning mandrel (4) and the contact head (7) respectively, the tensioning mandrel (4) is further sleeved with a second spring (9), two ends of the second spring (9) are abutted to the floating seat (3) and the connecting lug (42) respectively, the rigidity of the second spring (9) is smaller than that of the first spring (8), the three clamping jaws are hinged to the three connecting lugs (42) through levers respectively, the inner wall of the outer sleeve (2) is provided with an inclined plane protrusion (22) corresponding to the clamping jaw (5), the outer side wall of the clamping jaw (5) is provided with an inclined plane (51) corresponding to the inclined plane protrusion (22) in a matching manner, and when the outer sleeve (2) rotates, the inclined plane protrusion (22) of the outer sleeve (2) is abutted to the inclined plane (51) of the clamping jaw (5) and extrud;
the surface of the inclined plane protrusion (22) of the outer sleeve (2) facing the axial direction is an arc surface, and the inclined plane (51) of the clamping jaw (5) is arranged as an arc inclined plane (51);
the surface of the clamping jaw (5) facing to the axial direction of the tensioning mandrel (4) is concave;
the outer sleeve is extended downwards until the contact head is contacted with the top surface of the screw, at the moment, because the rigidity of the first spring is greater than that of the second spring, the first spring upwards jacks the tensioning mandrel, so that the tensioning mandrel moves upwards, the tensioning mandrel drives the three clamping jaws to approach to the center through a lever, and the outer wall of the screw is clamped, so that the screw is preliminarily clamped; after the clamping jaw clamps the screw, the screwing head is used for screwing operation, so that the outer sleeve is driven to rotate, the inclined surface protrusion of the outer sleeve is in contact with the inclined surface of the clamping jaw, the inclined surface protrusion of the outer sleeve extrudes the clamping jaw under the action of torque force, the clamping jaw is ejected towards the center, the screw is further firmly clamped, at the moment, the outer sleeve, the clamping jaw and the floating seat are rigidly connected together, the self-locking function is realized, then the screwing head is continuously screwed, and the outer sleeve transmits screwing torque to the screw, so that the screw is screwed.
2. The diameter changing method of the self-locking diameter changing manipulator as claimed in claim 1, wherein a retainer ring (10) is further embedded in the upper end of the floating seat (3), and the retainer ring (10) is located above the oilless bearing (6).
3. The method for changing the diameter of the self-locking diameter-changing manipulator as claimed in claim 1, wherein the screwing head (1) is arranged in a hexagonal head mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011113407.7A CN112247545A (en) | 2019-09-27 | 2019-09-27 | Diameter changing method of self-locking diameter changing manipulator |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910921900.2A CN110744480B (en) | 2019-09-27 | 2019-09-27 | Self-locking reducing manipulator |
| CN202011113407.7A CN112247545A (en) | 2019-09-27 | 2019-09-27 | Diameter changing method of self-locking diameter changing manipulator |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910921900.2A Division CN110744480B (en) | 2019-09-27 | 2019-09-27 | Self-locking reducing manipulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112247545A true CN112247545A (en) | 2021-01-22 |
Family
ID=69277256
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011113407.7A Withdrawn CN112247545A (en) | 2019-09-27 | 2019-09-27 | Diameter changing method of self-locking diameter changing manipulator |
| CN201910921900.2A Expired - Fee Related CN110744480B (en) | 2019-09-27 | 2019-09-27 | Self-locking reducing manipulator |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910921900.2A Expired - Fee Related CN110744480B (en) | 2019-09-27 | 2019-09-27 | Self-locking reducing manipulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN112247545A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115056173B (en) * | 2022-05-31 | 2023-11-03 | 满洲里达赉湖热电有限公司 | Quick-opening bolt safety opening device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19712783C2 (en) * | 1997-03-26 | 2000-11-09 | Sfs Ind Holding Ag Heerbrugg | Screwdriver element |
| FR2841304B1 (en) * | 2002-06-20 | 2007-01-05 | Skf Ab | VOLTAGE DEVICE FOR PRECONTRATING ROD AND ASSOCIATED VOLTAGE METHOD |
| CN203665393U (en) * | 2013-05-31 | 2014-06-25 | 杭州永飞机械有限公司 | Adjustable socket spanner |
| CN204819288U (en) * | 2015-07-29 | 2015-12-02 | 国家电网公司 | Link multi -functional sleeve of mode |
| CN108555581B (en) * | 2018-04-20 | 2020-06-02 | 温州承玥机械设备有限公司 | Hinge semilunar shape screw tightening robot |
| CN209223942U (en) * | 2019-01-03 | 2019-08-09 | 陈坚如 | A kind of Multifunctional sleeve of dimension adjustable |
-
2019
- 2019-09-27 CN CN202011113407.7A patent/CN112247545A/en not_active Withdrawn
- 2019-09-27 CN CN201910921900.2A patent/CN110744480B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN110744480B (en) | 2021-03-05 |
| CN110744480A (en) | 2020-02-04 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210122 |