CN105773652B - A kind of assembly method of mechanical arm - Google Patents
A kind of assembly method of mechanical arm Download PDFInfo
- Publication number
- CN105773652B CN105773652B CN201610171745.3A CN201610171745A CN105773652B CN 105773652 B CN105773652 B CN 105773652B CN 201610171745 A CN201610171745 A CN 201610171745A CN 105773652 B CN105773652 B CN 105773652B
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- CN
- China
- Prior art keywords
- screw
- annular groove
- hole
- snap ring
- mechanical arm
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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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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J17/00—Joints
Abstract
The invention provides a kind of assembly method of mechanical arm, belong to field of mechanical technique.It solves the problem of existing mechanical arm assembly method sealing is poor.Mechanical arm includes body and the end cap being fixedly connected with body by screw, the head in end cap outer rim with annular groove and screw is located in annular groove, the side wall of annular groove is provided with some circumferentially distributed through holes, through hole includes allowing the resigning hole that screw head is passed through and the spacing hole that screw head can be prevented to pass through, spacing hole is connected with resigning hole, provided with the snap ring being fixedly connected with screw head in annular groove, snap ring is in annular shape and with breach, the lateral wall of snap ring is located in annular groove and is socketed with the snap ring lateral wall can be by the sealed rubber ring of the notch of annular groove.The assembly method of this mechanical arm has the advantages that good sealing effect.
Description
The application is the divisional application of following patent application：Application number：CN201510015462.5, the applying date：2015-
01-12, title：A kind of mechanical arm.
Technical field
The invention belongs to field of mechanical technique, it is related to a kind of assembly method of mechanical arm.
Background technology
Mechanical arm is the automated machine device for obtaining most broad practice in robot technical field at present,
The fields such as industrial manufacture, therapeutic treatment, entertainment service, military affairs, semiconductor manufacturing and space probation can see its figure.
Although their form is had nothing in common with each other, the characteristics of they have one jointly can exactly receive instruction, be precisely positioned to
The certain point of three-dimensional (or two dimension) spatially carries out operation.
Between each joint joint and end cap on mechanical arm of the prior art or joint and miscellaneous part company
Connect and be all directly attached using fasteners such as screws, screw is directly exposed on mechanical arm.When mechanical arm is in operating mode
In the case of more severe in use, the impurity such as dust, water easily by screw junction enter in mechanical arm, influence machine
The normal work of tool arm.Simultaneously as the joint on mechanical arm is more, and it is more to need the position connected also to compare, therefore causes
The quantity that screw is used is also a lot so that the impurity such as more dust, water by screw junction enter in mechanical arm, greatly
The normal work of big influence mechanical arm.
The content of the invention
The purpose of the present invention is there is above mentioned problem for existing technology, it is proposed that a kind of by screw concealed mechanical arm
Assembly method.
The purpose of the present invention can be realized by following technical proposal：
A kind of assembly method of mechanical arm, it is characterised in that mechanical arm includes having ring in body and end cap, end cap outer rim
Connected in star, the side wall of annular groove is provided with some circumferentially distributed through holes, and described through hole includes allowing screw head
The resigning hole passed through and the spacing hole that screw head can be prevented to pass through, described spacing hole are connected with described resigning hole；
Snap ring is in annular shape and with breach, and snap ring inner side has shape between some double wedges being evenly distributed, and adjacent two double wedges 4a
Into a locating slot, this assembly method comprises the following steps：
A, screw bar portion prewhirled in body；
B, end cap lower end is inserted into connecting cylinder, makes screw head through the resigning hole on through hole and positioned at annular groove
It is interior；
C, rotating end cap cause in the spacing hole that screw is located on through hole；
D, by screw-driving to spacing hole；
E, snap ring is pulled open and is put into annular groove 2a and screw head is snapped onto in locating slot and is fixed snap ring；
F, the socket rubber ring 5 on the outside of snap ring, so that annular groove be sealed.
The mechanical arm assembled by the method, can will be screw concealed, improve mechanical arm structural stability.
A kind of mechanical arm, including body and the end cap that is fixedly connected with body by screw, it is characterised in that described end cap
The head in outer rim with annular groove and described screw is located in described annular groove, the side wall of described annular groove
Some circumferentially distributed through holes are provided with, described through hole includes the resigning hole that screw head can be allowed to pass through and can prevented
The spacing hole that screw head is passed through, described spacing hole is connected with described resigning hole, be provided with described annular groove with
The snap ring that screw head is fixedly connected with, described snap ring is in circular and with breach, and the lateral wall of described snap ring is located at described
Annular groove in and the snap ring lateral wall on be socketed with can be by the sealed rubber ring of the notch of annular groove.
In use, first screwing screw bar portion in advance with body, then screw head is through resigning hole and positioned at annular groove
Interior, then rotary end cover causes shank of screw portion to be located in spacing hole, and then wrench is extend into by screw-driving in annular groove,
Then snap ring is pulled open by breach and is put into annular groove and is fixed together with screw head, screw head is hidden,
Finally rubber ring seals the notch of annular groove on snap ring outer sheath.
By above-mentioned structure, screw head is set to be hidden in annular groove, and body and end cap are by screw bolt,
So as to which screw be hidden completely, the sealing of mechanical arm is improved；Meanwhile, under the support of snap ring, rubber ring is by stably fixed
Position is lived to make annular groove remain sealing, be prevented effectively from the impurity such as dust, water enter in annular groove and by screw and
The junction of each parts enters the work of influence mechanical arm in body；Especially more disliked when mechanical arm is in working environment
In use, the sealing effectiveness that screw is hidden to reached mechanical arm completely more protrudes in the case of bad.
In above-mentioned mechanical arm, described rubber ring is in outside annular and the lateral wall of the rubber ring and described end cap
Side wall is flush.
Rubber ring lateral wall is flush with end cap lateral wall, the probability that effectively reduction rubber ring collides with miscellaneous part,
Annular groove is remained sealing so as to which rubber ring stably be positioned, effectively prevent the impurity such as dust, water and enter ring
In connected in star, the sealing effectiveness of mechanical arm is further increased, while making screw head preferably be hidden in annular groove.
In above-mentioned mechanical arm, described annular groove includes relative two side, and the two sides of described snap ring are divided
Two side not with described annular groove mutually reclines.
In the presence of frictional force, snap ring is more stably positioned, so that more stably support rubber ring,
Annular groove is remained sealing, further increase the sealing effectiveness of mechanical arm, while making screw head preferably hidden
Ensconce in annular groove.
In above-mentioned mechanical arm, there are some double wedges being evenly distributed, described in adjacent two on the inside of described snap ring
A locating slot is formed between double wedge, described screw head is connected in described locating slot.
Screw head is connected in locating slot, so that snap ring stable position be lived so that rubber ring is preferably propped up by snap ring
Prop up, annular groove is remained sealing, then further increase the sealing effectiveness of mechanical arm, while making screw head more
It is hidden in annular groove well.
In above-mentioned mechanical arm, described annular groove includes a bottom wall being located between two side, each described
Double wedge leans with described annular groove bottom wall.
Double wedge offsets with annular groove bottom wall, adds the contact area between snap ring and end cap, snap ring is more stablized
Ground is positioned, so that the sealing effectiveness of mechanical arm is improved, while making screw head preferably be hidden in annular groove.
In above-mentioned mechanical arm, described resigning hole is rounded, and described spacing hole is in circular arc and described spacing
By seamlessly transitting between hole and described resigning hole.
By smoothly fixing between spacing hole and resigning hole so that screw can be rotated swimmingly when mounted.
Compared with prior art, this mechanical arm has advantages below：
1st, screw head is stashed by the cooperation of annular groove, snap ring and rubber ring three, body and end cap are logical
Screw bolt is crossed, so that screw be hidden completely, the sealing of mechanical arm is improved.
2nd, under the support of snap ring, rubber ring is stably positioned relative to the first and second frame part so that annular groove remains sealing, effectively
Avoid the impurity such as dust, water from entering in annular groove and influence in body is entered by the junction of screw and each parts
The work of mechanical arm；Especially when mechanical arm working environment be in it is more severe in the case of in use, screw is hidden completely
The sealing effectiveness of the mechanical arm reached more protrudes.
3rd, rubber ring lateral wall and end cap lateral wall are flush, effectively reduction rubber ring and miscellaneous part collide it is several
Rate, so that rubber ring, which is stably positioned, makes annular groove remain sealing, effectively prevent the impurity such as dust, water and enters
In annular groove, the sealing effectiveness of mechanical arm is further increased, while making screw head preferably be hidden in annular groove
It is interior.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of mechanical arm.
Fig. 2 is the configuration schematic diagram of mechanical arm.
Fig. 3 is the attachment structure schematic diagram of screw and through hole.
Fig. 4 is the attachment structure schematic diagram of screw and snap ring.
Fig. 5 is the cross section structure diagram of mechanical arm.
In figure, 1, body；1a, connecting cylinder；1b, limited post；1b1, screwed hole；2nd, end cap；2a, annular groove；It is 2b, logical
Hole；2b1, spacing hole；2b2, resigning hole；3rd, screw；4th, snap ring；4a, double wedge；4b, locating slot；5th, rubber ring.
Embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
As depicted in figs. 1 and 2, mechanical arm includes one in the composition such as body 1, end cap 2, snap ring 4, rubber ring 5, wherein, this
Body 1 and end cap 2 are fixedly connected with by screw 3.
Specifically, as shown in Fig. 2 having connecting cylinder 1a, connecting cylinder 1a protrude and tubular on the lateral wall of body 1
Some limited posts 1b, some limited post 1b of interior connection are circumferentially distributed and limited post 1b lower ends are linked as one with body 1
It is overall.Each limited post 1b upper ends, which are axially arranged with a screwed hole 1b1, each limited post 1b lateral walls, is respectively connected with rib,
Intensity for strengthening limited post 1b.
Connecting cylinder 1a is located between end cap 2 and body 1 and connecting cylinder 1a is faced with end cap 2.Have in the outer rim of end cap 2
One is coaxial therewith offering some circumferentially distributed through hole 2b on the annular groove 2a of setting, annular groove 2a side wall.
As shown in figure 3, each through hole 2b includes the resigning hole 2b2 that the head of screw 3 can be allowed to pass through and can prevent spiral shell
The spacing hole 2b1 for following closely that 3 heads pass through, described spacing hole 2b1 are connected with described resigning hole 2b2.In the present embodiment, allow
Position hole 2b2 is rounded and aperture of resigning hole 2b2 is more than the diameter on the head of screw 3, and spacing hole 2b1 is in circular arc and spacing hole
2b1 aperture is less than the diameter on the head of screw 3 but more than the diameter of the bar portion of screw 3.Lead between spacing hole 2b1 and resigning hole 2b2
Cross and seamlessly transit so that screw 3 can be rotated swimmingly when mounted.Limited post 1b quantity it is identical with through hole 2b quantity and
Position is faced with spacing hole 2b1.
Snap ring 4 is located in annular groove 2a and the snap ring 4 is fixedly connected with the head of screw 3.In the present embodiment, such as Fig. 2, figure
Shown in 4 and Fig. 5, snap ring 4 is in annular shape and with breach, and when mounted, and the head of screw 3 is located in snap ring 4.
Further illustrate, as shown in figure 5, annular groove 2a includes relative two side and the bottom between two side
Wall.The two side of snap ring 4 mutually reclines with annular groove 2a two side respectively so that it is recessed that snap ring 4 is stably positioned in annular
In groove 2a, the head of screw 3 is set preferably to be hidden in the inner side of snap ring 4.
As shown in Figure 2 and Figure 4, the inner side of snap ring 4 has between some double wedge 4a being evenly distributed, and adjacent two double wedges 4a
Form a locating slot 4b.Each double wedge 4a leans with annular groove 2a bottom walls, adds connecing between snap ring 4 and end cap 2
Contacting surface is accumulated, and snap ring 4 is more stably positioned.
Locating slot 4b includes relative two side and the bottom wall between two side, wherein, locating slot 4b two side
It is an inclined plane, locating slot 4b bottom wall is between an arc surface, and locating slot 4b two side and locating slot 4b bottom wall
By seamlessly transitting.The head of screw 3 is connected in locating slot 4b, so that the stable position of snap ring 4 be lived so that rubber ring 5
Preferably supported by snap ring 4, annular groove 2a is remained sealing, then further increase the sealing effect of mechanical arm
Really, while making the head of screw 3 preferably be hidden in annular groove 2a.
Further illustrate, the lateral wall of snap ring 4 is located in described annular groove 2a.I.e. snap ring 4 is fully located at annular recessed
In groove 2a.Being socketed with the lateral wall of snap ring 4 can be by the sealed rubber ring 5 of annular groove 2a notch.In the present embodiment, rubber
Circle 5 in annular shape, the two sides of rubber ring 5 mutually reclined with annular groove 2a two side respectively and the lateral wall of rubber ring 5 with
The lateral wall of end cap 2 is flush so that rubber ring 5, so that screw 3 is preferably hidden in the inner side of snap ring 5, is entered by stable position
One step improves the sealing effectiveness of mechanical arm.
As shown in figure 5, when installing, first the bar portion of screw 3 is screwed into limited post 1b in advance, then the lower end of end cap 2 is inserted into
Offset in connecting cylinder 1a and with limited post 1b, and now, the head of screw 3 is through the resigning hole 2b2 on through hole 2b and positioned at annular
In groove 2a.Then rotating end cap 2 causes in the spacing hole 2b1 that screw 3 is located on through hole 2b.Then spanner extend into annular recessed
In groove 2a and screw 3 is tightened, because the head diameter of screw 3 is more than spacing hole 2b1 aperture, so that screw 3 is stably fixed
Position is lived.Then, snap ring 4 is pulled open by breach and is put into annular groove 2a and the head of screw 3 is snapped onto in locating slot 4b
Snap ring 4 is fixed, rubber ring 5 is finally socketed on the outside of snap ring, so that annular groove 2a be sealed, and the head of screw 3 is hidden
In in annular groove 2a.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (1)
1. a kind of assembly method of mechanical arm, it is characterised in that mechanical arm is included on the outside of body (1) and end cap (2), body (1)
There is connecting cylinder (1a) protrude and tubular, connecting cylinder (1a) is located between end cap (2) and body (1) and the connection on wall
Cylinder (1a) is faced with end cap (2), has annular groove (2a) in end cap (2) outer rim, and the side wall of annular groove (2a) is provided with
Some circumferentially distributed through holes (2b), described through hole (2b) includes allowing the resigning hole (2b2) that screw (3) head is passed through
With the spacing hole (2b1) that screw (3) head can be prevented to pass through, described spacing hole (2b1) and described resigning hole (2b2) phase
Connection；Snap ring (4) is in annular shape and with breach, and snap ring (4) inner side has some double wedges (4a) being evenly distributed, and adjacent
A locating slot (4b) is formed between two double wedges (4a), this assembly method comprises the following steps：
A, screw (3) bar portion screwed in advance in body (1)；
B, end cap (2) lower end is inserted into connecting cylinder (1a), makes screw (3) head through the resigning hole on through hole (2b)
(2b2) and in annular groove (2a)；
C, rotating end cap (2) cause in the spacing hole (2b1) that screw (3) is located on through hole (2b)；
D, screw (3) is screwed to spacing hole (2b1) place；
E, snap ring (4) pulled open and is put into annular groove (2a) and screw (3) head is snapped onto in locating slot (4b) and will card
Ring (4) is fixed；
F, the socket rubber ring (5) on the outside of snap ring (4), so that annular groove (2a) be sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610171745.3A CN105773652B (en) | 2015-01-12 | 2015-01-12 | A kind of assembly method of mechanical arm |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610171745.3A CN105773652B (en) | 2015-01-12 | 2015-01-12 | A kind of assembly method of mechanical arm |
| CN201510015462.5A CN104626112B (en) | 2015-01-12 | 2015-01-12 | A kind of mechanical arm |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510015462.5A Division CN104626112B (en) | 2015-01-12 | 2015-01-12 | A kind of mechanical arm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105773652A CN105773652A (en) | 2016-07-20 |
| CN105773652B true CN105773652B (en) | 2017-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610171745.3A Expired - Fee Related CN105773652B (en) | 2015-01-12 | 2015-01-12 | A kind of assembly method of mechanical arm |
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| Country | Link |
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| CN (1) | CN105773652B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121835A (en) * | 2016-08-03 | 2016-11-16 | 重庆高金实业有限公司 | There is the leaf valve of novel structure reed |
| CN115003937A (en) * | 2020-05-03 | 2022-09-02 | Abb瑞士股份有限公司 | Sealing assembly and robot |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6069415A (en) * | 1998-06-05 | 2000-05-30 | Ati Industrial Automation, Inc. | Overload protection device |
| US7137763B2 (en) * | 2003-07-25 | 2006-11-21 | Ati Industrial Automation, Inc. | Pneumatically driven deburring tool having an articulated air joint |
| CN101829996A (en) * | 2009-03-09 | 2010-09-15 | 鸿富锦精密工业（深圳）有限公司 | Mechanical interface and manipulator applying same |
| CN202480101U (en) * | 2012-02-28 | 2012-10-10 | 陕西诺贝特自动化科技有限公司 | Wrist sealing structure of robot |
| JP5580378B2 (en) * | 2012-08-31 | 2014-08-27 | ファナック株式会社 | Articulated robot having a cover attached to an end effector mounting portion |
| CN103639717B (en) * | 2013-11-19 | 2015-12-09 | 重庆市星极齿轮有限责任公司 | A kind of automobile-used frock for processing thin-walled endoporus |
| CN103753528B (en) * | 2014-02-18 | 2016-09-14 | 中国人民解放军军事医学科学院卫生装备研究所 | There is the light-duty motion arm of collapsible six degree of freedom of joints axes orthogonality relation |
| CN203718200U (en) * | 2014-03-03 | 2014-07-16 | 温州联发法兰管件有限公司 | Flange connecting piece |
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2015
- 2015-01-12 CN CN201610171745.3A patent/CN105773652B/en not_active Expired - Fee Related
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| CN105773652A (en) | 2016-07-20 |
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Address after: 317604 Nanyou Industrial Zone, Barley and Development Zone, Yuhuan County, Taizhou City, Zhejiang Province Patentee after: Qixing Intelligent Technology Co.,Ltd. Address before: 317604 Nanyou Industrial Zone, Barley and Development Zone, Yuhuan County, Taizhou City, Zhejiang Province Patentee before: ZHEJIANG QIXING ELECTRONICS Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170922 |
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