CN111120480B - Positioning locking guide sleeve - Google Patents
Positioning locking guide sleeve Download PDFInfo
- Publication number
- CN111120480B CN111120480B CN202010066311.3A CN202010066311A CN111120480B CN 111120480 B CN111120480 B CN 111120480B CN 202010066311 A CN202010066311 A CN 202010066311A CN 111120480 B CN111120480 B CN 111120480B
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- Prior art keywords
- clamping jaw
- guide
- locking
- guide post
- jaw
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- 230000009471 action Effects 0.000 claims abstract description 5
- 210000000078 claw Anatomy 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 8
- 238000012545 processing Methods 0.000 abstract description 4
- 238000009776 industrial production Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 9
- 238000013461 design Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000026058 directional locomotion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a positioning and locking guide sleeve, which comprises: the elastic locking guide sleeve comprises a first cylindrical part and a clamping jaw arranged at the end part of the first cylindrical part, and a guide post hole for a guide post to pass through is formed in the first cylindrical part and the clamping jaw; the excircle of the clamping jaw is a pair of equivalent arcs symmetrically eccentric to the guide pillar hole; the locking cap is sleeved on the clamping jaw, and a boss is arranged on the inner circle of the locking cap corresponding to the clamping jaw; the locking cap is rotated, the boss moves along the excircle of the clamping jaw, and positioning, locking or opening of the guide pillar is realized under the action of eccentricity. The locking cap is screwed, so that the elastic clamping jaw can be driven to realize quick positioning, locking or opening of the guide pillar; the device has the characteristics of simple structure, low cost, short processing period, stable precision, simple operation, convenient maintenance and the like, can be widely applied in industrial production, and can bring certain economic benefits and good social benefits to enterprises.
Description
Technical Field
The invention belongs to the technical field of positioning and locking of guide pillars and guide sleeves, and relates to a guide sleeve capable of being quickly positioned and locked.
Background
Along with the improvement of the universal design requirement of the special tool at present, the universal design of the special tool used at the same station becomes the first choice of tool design in the processes of part processing, product assembly, test and the like of similar products. In the design of a general tool, the structure form of a guide pillar and a guide sleeve is usually adopted at present to replace the traditional adjustable mechanism, so that the functions of positioning, mounting, directional movement, precision correction and the like are realized.
However, the conventional guide post and guide sleeve structure can only guide and cannot meet the requirements of positioning and quick locking, so that some auxiliary mechanisms need to be added to realize the functions of positioning and locking. The structure is complex, the number of parts is increased, the special tool body is increased, and the operation process is complicated; and the installation precision of the product is ensured to be general, the cost is high, the operation is inconvenient, and potential safety hazards and quality hazards exist.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the guide sleeve which is low in cost, simple to operate, safe and reliable, and can be quickly positioned and locked, so that the guide sleeve can be quickly positioned, locked or opened relative to the guide pillar in the moving process.
The invention discloses a positioning and locking guide sleeve, which comprises:
the elastic locking guide sleeve comprises a first cylindrical part and a clamping jaw arranged at the end part of the first cylindrical part, and a guide post hole for a guide post to pass through is formed in the first cylindrical part and the clamping jaw; the excircle of the clamping jaw is a pair of equivalent arcs symmetrically eccentric to the guide pillar hole;
the locking cap is sleeved on the clamping jaw, and a boss is arranged on the inner circle of the locking cap corresponding to the clamping jaw; and when the locking cap is rotated, the boss moves along the excircle of the clamping jaw, and the guide pillar is positioned, locked or opened under the action of eccentricity.
In a further improvement of the present invention, the jaw and the first cylindrical portion are formed as an integral structure, and the guide post hole of the first cylindrical portion and the guide post hole of the jaw are coaxial and have the same diameter.
As a further improvement of the invention, the jaws comprise a first jaw and a second jaw which are circularly symmetrical, and the inner circles of the first jaw and the second jaw form the guide post hole; the outer circle and the inner circle of the first clamping jaw are of eccentric structures, and the outer circle and the inner circle of the second clamping jaw are of eccentric structures; the excircle of the first clamping jaw and the excircle of the second clamping jaw are equivalent circular arcs, and the circle centers of the excircle of the first clamping jaw and the excircle of the second clamping jaw are symmetrical relative to the circle center of the guide post hole.
As a further improvement of the invention, the outer circle of the first cylindrical part is fixed with an external connector, and the outer circle of the first cylindrical part is in interference fit with the external connector.
As a further improvement of the present invention, the first cylindrical portion is in clearance fit with the guide post hole of the pawl.
As a further improvement of the present invention, the locking cap includes a second cylindrical portion and a circular plate portion provided at an end portion of the second cylindrical portion;
the lower end of the inner circle of the second cylindrical part is provided with two circular symmetric bosses, and the inner circles of the bosses are coaxial with the guide pillar holes;
when the clamping device works, the inner circle of the boss of the locking cap is in contact with the starting point of the eccentric arc on the outer side of the clamping jaw in an initial state, and the inner circle of the boss gradually extrudes the symmetrical eccentric arc of the clamping jaw along with the rotation of the locking cap until the inner circle of the clamping jaw is tightly attached to the guide pillar; the guide post is positioned, locked or unlocked by means of the friction force between the two.
As a further improvement of the present invention, the circular plate portion is provided with a through hole for the guide post to pass through.
As a further improvement of the invention, the top of the clamping jaw is provided with a protrusion which is clamped in a cavity between the boss and the circular plate part.
Compared with the prior art, the invention has the beneficial effects that:
the invention can drive the elastic claw to realize quick positioning, locking or opening of the guide pillar by screwing the locking cap, is suitable for all guide pillar and guide sleeve guiding, positioning and locking structures, and particularly has the guide pillar with the diameter of
The following such structures; the device has the characteristics of simple structure, low cost, short processing period, stable precision, simple operation, convenient maintenance and the like, can be widely applied in industrial production, and can bring certain economic benefits and good social benefits to enterprises.
Drawings
Fig. 1 is a schematic structural view of a positioning and locking guide sleeve disclosed in an embodiment of the present invention;
FIG. 2 is another cross-sectional view of the elastic locking guide sleeve disclosed in one embodiment of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is another cross-sectional view of the locking cap disclosed in one embodiment of the present invention;
fig. 5 is a bottom view of fig. 4.
In the figure:
1. an elastic locking guide sleeve; 1-1, a first cylindrical portion; 1-2, a jaw; 1-3, a first arc surface; 1-4, a second arc surface; 1-5, convex;
2. a locking cap; 2-1, a second cylindrical portion; 2-2, a circular plate part; 2-3, a boss; 2-4, through holes;
WJJ, external connector; DJ. A guide post; A. a first circle center; B. a second circle center; C. the third circle center.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention is described in further detail below with reference to the attached drawing figures:
as shown in fig. 1, the invention provides a positioning and locking guide sleeve, which comprises an elastic locking guide sleeve 1 and a locking cap 2, and positioning, locking or opening of a guide pillar at any position of the positioning and locking guide sleeve is realized through the matching of the locking cap 2 and an eccentric structure of a jaw at the end part of the elastic locking guide sleeve 1. Specifically, the method comprises the following steps:
as shown in fig. 1 to 3, the elastic locking guide sleeve 1 of the present invention includes a first cylindrical portion 1-1 and a jaw 1-2, wherein an inner circle and an outer circle of the first cylindrical portion 1-1 are coaxially disposed, the inner circle of the first cylindrical portion 1-1 forms a guide post hole for a guide post DJ to pass through, and the inner circle of the first cylindrical portion 1-1 is in precise clearance fit with the guide post DJ; the excircle of the first cylindrical part 1-1 is connected with an external piece WJJ, and the excircle of the first cylindrical part 1-1 is in interference fit with the external piece WJJ; the external connecting member WJJ may be movable plate, cylinder or other shape. Based on the matching mode of the first cylindrical part 1-1, the external piece WJJ and the guide pillar DJ, the first cylindrical part 1-1 can be tightly connected with the external piece WJJ and can be in sliding fit with the guide pillar DJ.
The clamping jaw 1-2 is arranged at the end part of the first cylindrical part 1-1, and preferably, the clamping jaw 1-2 and the first cylindrical part 1-1 are of an integral structure; guide post holes for the guide posts DJ to pass through are formed in the clamping jaws 1-2, and preferably the guide post holes of the first cylindrical parts 1-1 and the guide post holes of the clamping jaws 1-2 are coaxial and have the same diameter; the excircle of the clamping jaw 1-2 is a pair of equivalent arcs which are symmetrical and eccentric with the guide pillar hole. The specific structure of the symmetrical eccentric equivalent circular arc arranged on the clamping jaw 1-2 is as follows: as shown in fig. 2-3, the jaw 1-2 of the present invention comprises a first jaw and a second jaw which are circularly symmetrical, wherein the bottoms of the first jaw and the second jaw are partially connected with a first cylindrical part 1-1 (at the section line shown in fig. 3), and the inner circles of the first jaw and the second jaw form a guide post hole of the jaw 1-2; the outer circle (the first arc surface 1-3) and the inner circle of the first clamping jaw are of an eccentric structure, and the outer circle (the second arc surface 1-4) and the inner circle of the second clamping jaw are of an eccentric structure; the first arc surface 1-3 of the first clamping jaw and the second arc surface 1-4 of the second clamping jaw are equivalent arcs, and the circle centers of the first arc surface 1-3 of the first clamping jaw and the second arc surface 1-4 of the second clamping jaw are symmetrical relative to the circle center of the guide pillar hole; as shown in fig. 3, the center point of the first arc surface 1-3 of the first jaw is point B, the center point of the second arc surface 1-4 of the second jaw is point C, the center point of the guide pillar hole is point a, and point B and point C are two symmetrical points relative to point a; the structure ensures that the radiuses of the first arc surface 1-3 and the second arc surface 1-4 corresponding to the point A are gradually increased in the anticlockwise direction shown in figure 3 on the basis of taking the axis of the guide post hole as a rotating shaft; further ensuring that when the boss coaxial with the guide post hole is arranged on the first arc surface 1-3 and the second arc surface 1-4, the first clamping jaw and the second clamping jaw are extruded to move towards the center by the anticlockwise rotation of the boss, so that the guide post in the guide post hole can be locked; the clockwise rotation of the boss can enable the first claw and the second claw to move outwards under the elastic action, and therefore the guide pillar in the guide pillar hole is unlocked.
In order to realize the locking of the guide post in the guide post hole by the clamping jaw 1-2 by utilizing the eccentric structure of the clamping jaw, a driving piece is required to be designed, and the clamping jaw is driven to move inwards by the driving piece or to move outwards by utilizing the elasticity of the clamping jaw; therefore, the invention designs a locking cap 2 structure, the locking cap 2 is sleeved on the clamping jaws 1-2, and bosses 2-3 are arranged on the inner circle of the locking cap 2 corresponding to the clamping jaws; the locking cap 2 is rotated, the boss 2-3 moves along the excircle of the clamping jaw 1-2, and the positioning, locking or opening of the guide pillar DJ is realized under the eccentric action.
Specifically, the method comprises the following steps:
as shown in fig. 1, 4 and 5, the locking cap 2 of the present invention comprises a second cylindrical part 2-1 and a circular plate part 2-2, wherein the circular plate part 2-2 is disposed on the top of the second cylindrical part 2-1, and preferably, the second cylindrical part 2-1 and the circular plate part 2-2 are an integral structure; the second cylindrical part 2-1, the circular plate part 2-2 and the elastic locking guide sleeve 1 are coaxially arranged. Two circular symmetric bosses 2-3 are arranged at the lower end of the inner circle of the second cylindrical part, the inner circle of each boss 2-3 is coaxial with the guide pillar hole, and the inner aperture of each boss 2-3 is based on the distance between the minimum radius and the maximum radius of the point A corresponding to the first arc surface 1-3 or the second arc surface 1-4. Meanwhile, in order to realize that the locking cap 2 is clamped on the clamping jaw 1-2 without separation, the top of the clamping jaw 1-2 is provided with a protrusion 1-5, the protrusion 1-5 is clamped in a cavity between the boss 2-3 and the circular plate part 2-2, and the excircle of the protrusion 1-5 is in clearance fit with the inner diameter of the second cylindrical part 2-1. Furthermore, a through hole 2-4 coaxial with the excircle is arranged on the circular plate part 2-2, so that the guide pillar can pass through without obstacles during working. Further, the circular plate part 2-2 and the second cylindrical part 2-1 form a symmetrical edge together on the outer circle for the wrench force during the rotation operation.
When the locking device is used, the initial state of the locking sleeve 2 is a free state, the inner circle of the boss 2-3 of the locking cap 2 is contacted with the starting point of the eccentric arc at the outer side of the clamping jaw 1-2 in the initial state, and along with the rotation of the locking cap 2, the inner circle of the boss 2-3 gradually extrudes the symmetrical eccentric arc of the clamping jaw 1-2 until the inner circle of the clamping jaw is tightly attached to the guide pillar; the guide post is positioned, locked or unlocked by means of the friction force between the two.
The invention has the advantages that:
the invention can drive the elastic claw to realize quick positioning, locking or opening of the guide pillar by screwing the locking cap, is suitable for all guide pillar and guide sleeve guiding, positioning and locking structures, and particularly has the guide pillar with the diameter of
The following such structures; the device has the characteristics of simple structure, low cost, short processing period, stable precision, simple operation, convenient maintenance and the like, can be widely applied in industrial production, and can bring certain economic benefits and good social benefits to enterprises.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A location locking guide pin bushing, its characterized in that includes:
the elastic locking guide sleeve comprises a first cylindrical part and a clamping jaw arranged at the end part of the first cylindrical part, and a guide post hole for a guide post to pass through is formed in the first cylindrical part and the clamping jaw; the excircle of the clamping jaw is a pair of equivalent arcs symmetrically eccentric to the guide pillar hole;
the locking cap is sleeved on the clamping jaw, and a boss is arranged on the inner circle of the locking cap corresponding to the clamping jaw; and when the locking cap is rotated, the boss moves along the excircle of the clamping jaw, and the guide pillar is positioned, locked or opened under the action of eccentricity.
2. The guide sleeve of claim 1, wherein the pawl is integrally formed with the first cylindrical portion, and the guide post hole of the first cylindrical portion is coaxial with the guide post hole of the pawl.
3. The positioning and locking guide sleeve as claimed in claim 1 or 2, wherein the jaws comprise a first jaw and a second jaw which are circularly symmetrical, and the inner circles of the first jaw and the second jaw form the guide post hole; the outer circle and the inner circle of the first clamping jaw are of eccentric structures, and the outer circle and the inner circle of the second clamping jaw are of eccentric structures; the excircle of the first clamping jaw and the excircle of the second clamping jaw are equivalent circular arcs, and the circle centers of the excircle of the first clamping jaw and the excircle of the second clamping jaw are symmetrical relative to the circle center of the guide post hole.
4. The guide sleeve according to claim 3, wherein the outer circumference of the first cylindrical portion is fixed to an external member, and the outer circumference of the first cylindrical portion is in interference fit with the external member.
5. The guide sleeve of claim 3, wherein said first cylindrical portion is in clearance fit with said guide post hole of said pawl.
6. The guide sleeve of claim 1, wherein the locking cap includes a second cylindrical portion and a circular plate portion provided at an end of the second cylindrical portion;
the lower end of the inner circle of the second cylindrical part is provided with two circular symmetric bosses, and the inner circles of the bosses are coaxial with the guide pillar holes;
when the clamping device works, the inner circle of the boss of the locking cap is in contact with the starting point of the eccentric arc on the outer side of the clamping jaw in an initial state, and the inner circle of the boss gradually extrudes the symmetrical eccentric arc of the clamping jaw along with the rotation of the locking cap until the inner circle of the clamping jaw is tightly attached to the guide pillar; the guide post is positioned, locked or unlocked by means of the friction force between the two.
7. The guide sleeve of claim 6, wherein said circular plate portion has a through hole for said guide post to pass through.
8. The guide sleeve for positioning and locking as claimed in claim 6, wherein the top of the claw is provided with a protrusion, and the protrusion is clamped in the cavity between the boss and the circular plate part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010066311.3A CN111120480B (en) | 2020-01-20 | 2020-01-20 | Positioning locking guide sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010066311.3A CN111120480B (en) | 2020-01-20 | 2020-01-20 | Positioning locking guide sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111120480A CN111120480A (en) | 2020-05-08 |
| CN111120480B true CN111120480B (en) | 2021-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010066311.3A Active CN111120480B (en) | 2020-01-20 | 2020-01-20 | Positioning locking guide sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111120480B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2832591A1 (en) * | 1977-07-25 | 1979-02-01 | Sumitomo Electric Industries | DEVICE FOR ATTACHING A LONGITUDINAL, ROD-LIKE PART |
| DE3232926A1 (en) * | 1982-09-04 | 1984-03-08 | OBO Bettermann oHG, 5750 Menden | Device for connecting structural parts or structural elements to one another |
| DE3415558A1 (en) * | 1984-04-26 | 1985-11-07 | Fa. Andreas Stihl, 7050 Waiblingen | Axial securing device, preferably for an oil pump of a motor-driven chain saw |
| CN201582269U (en) * | 2009-12-14 | 2010-09-15 | 苏州创新陶瓷有限公司 | Coupling mechanism of ceramic roller and shaft sleeve |
| CN102094880A (en) * | 2011-03-14 | 2011-06-15 | 北京联合大学 | Coupling |
| CN205937379U (en) * | 2016-08-18 | 2017-02-08 | 开封空分集团有限公司 | Novel anti loosening structure is used to major diameter piston rod |
| CN107470557A (en) * | 2017-09-28 | 2017-12-15 | 张原彬 | A kind of big temperature difference working condition mould is guide locating device provided with chamfered edge guide pillar guide pin bushing |
| CN207357953U (en) * | 2017-09-22 | 2018-05-15 | 上海德舒赫金属制品有限公司 | A kind of linear ball bearing guide bushing of high intensity |
| CN208662323U (en) * | 2018-09-14 | 2019-03-29 | 菲斯达排放控制装置（苏州）有限公司 | A kind of guide post guide sleeve structure |
| CN209213425U (en) * | 2018-09-19 | 2019-08-06 | 上海施迈尔精密陶瓷有限公司 | A kind of guide post guide sleeve component of electric ceramic |
-
2020
- 2020-01-20 CN CN202010066311.3A patent/CN111120480B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2832591A1 (en) * | 1977-07-25 | 1979-02-01 | Sumitomo Electric Industries | DEVICE FOR ATTACHING A LONGITUDINAL, ROD-LIKE PART |
| DE3232926A1 (en) * | 1982-09-04 | 1984-03-08 | OBO Bettermann oHG, 5750 Menden | Device for connecting structural parts or structural elements to one another |
| DE3415558A1 (en) * | 1984-04-26 | 1985-11-07 | Fa. Andreas Stihl, 7050 Waiblingen | Axial securing device, preferably for an oil pump of a motor-driven chain saw |
| CN201582269U (en) * | 2009-12-14 | 2010-09-15 | 苏州创新陶瓷有限公司 | Coupling mechanism of ceramic roller and shaft sleeve |
| CN102094880A (en) * | 2011-03-14 | 2011-06-15 | 北京联合大学 | Coupling |
| CN205937379U (en) * | 2016-08-18 | 2017-02-08 | 开封空分集团有限公司 | Novel anti loosening structure is used to major diameter piston rod |
| CN207357953U (en) * | 2017-09-22 | 2018-05-15 | 上海德舒赫金属制品有限公司 | A kind of linear ball bearing guide bushing of high intensity |
| CN107470557A (en) * | 2017-09-28 | 2017-12-15 | 张原彬 | A kind of big temperature difference working condition mould is guide locating device provided with chamfered edge guide pillar guide pin bushing |
| CN208662323U (en) * | 2018-09-14 | 2019-03-29 | 菲斯达排放控制装置（苏州）有限公司 | A kind of guide post guide sleeve structure |
| CN209213425U (en) * | 2018-09-19 | 2019-08-06 | 上海施迈尔精密陶瓷有限公司 | A kind of guide post guide sleeve component of electric ceramic |
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| Publication number | Publication date |
|---|---|
| CN111120480A (en) | 2020-05-08 |
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