CN204414099U - A kind of mechanical arm - Google Patents
A kind of mechanical arm Download PDFInfo
- Publication number
- CN204414099U CN204414099U CN201520019971.0U CN201520019971U CN204414099U CN 204414099 U CN204414099 U CN 204414099U CN 201520019971 U CN201520019971 U CN 201520019971U CN 204414099 U CN204414099 U CN 204414099U
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- CN
- China
- Prior art keywords
- ring flange
- mechanical arm
- shoulder block
- annular shoulder
- support tube
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Abstract
The utility model provides a kind of mechanical arm, belongs to field of mechanical technique.It solve the problem of existing mechanical arm sealing effectiveness difference.The ring flange that this mechanical arm comprises body and is connected with body circumference, ring flange is fixed with end cap by screw, body comprises a link cylindrically, between the end face of the link on ring flange and body, there is gap, screw head is positioned at gap, ring flange end face is provided with some through holes circumferentially distributed, through hole comprises the resigning hole that screw head can be allowed to pass and the spacing hole that screw head can be stoped to pass, spacing hole is connected with resigning hole, be provided with in gap and can move axially along ring flange and support tube cylindrically, the lateral wall of end adjacent with ring flange on support tube has annular shoulder block, annular shoulder block and ring flange offset, support tube lateral wall is socketed with rubber ring, the both ends of the surface of rubber ring offset with annular shoulder block and link end face respectively.This mechanical arm has the advantage of good sealing effect.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of mechanical arm.
Background technology
Mechanical arm is the automated machine device obtaining at present most broad practice in robot technical field, can see its figure in fields such as industry manufacture, therapeutic treatment, entertainment service, military affairs, semiconductor manufacturing and space probations.Although their form is had nothing in common with each other, they have a common feature, can accept instruction exactly, accurately navigate to three-dimensional (or two dimension) spatially certain and a bit carry out operation.
Each joint on mechanical arm of the prior art or the connection of between joint and end cap or joint and miscellaneous part all adopt the securing members such as screw directly to connect, and screw is directly exposed on mechanical arm.When mechanical arm uses when operating mode is comparatively severe, the impurity such as dust, water easily enters in mechanical arm by junction, screw ground, affects the normal work of mechanical arm.Simultaneously, because the joint on mechanical arm is more, and need the position of connection also many, the quantity therefore causing screw to use is also a lot, make the impurity such as more dust, water enter in mechanical arm by junction, screw ground, greatly affect the normal work of mechanical arm.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes a kind of by screw concealed mechanical arm.
The purpose of this utility model realizes by following technical proposal: a kind of mechanical arm, the ring flange comprising body and be connected with body circumference, described ring flange is fixed with end cap by screw, it is characterized in that, described body comprises a link cylindrically and this link and ring flange are coaxially arranged, between the end face of the link on described ring flange and body, there is gap, described screw head is positioned at gap, described ring flange end face is provided with some through holes circumferentially distributed, described through hole comprises the resigning hole that screw head can be allowed to pass and the spacing hole that screw head can be stoped to pass, described spacing hole is connected with described resigning hole, be provided with in described gap and can move axially along ring flange and support tube cylindrically, the lateral wall of end adjacent with ring flange on described support tube has annular shoulder block, described annular shoulder block and described ring flange offset, described support tube lateral wall is socketed with rubber ring, the both ends of the surface of described rubber ring offset with the end face of the link on described annular shoulder block and body respectively.
When screw is not installed, support tube is plugged in link and this annular shoulder block and link end face offset; During installation, first shank of screw portion is preset on end cap, then screw head passes the resigning hole on ring flange and is positioned at gap, then rotary end cover makes shank of screw portion be positioned at spacing hole, then spanner to be extend in gap and by screw-driving, finally by support tube pull-up, on support tube lateral wall, finally to overlap rubber ring gap is sealed completely, simultaneously under the effect of rubber ring, support tube is stably located.
Being offseted by rubber ring one end and annular shoulder block makes annular shoulder block side and ring flange offset to be formed and seal; The rubber ring other end and link end face offset to be formed and seal, thus screw head is hidden in gap, and ring flange and end cap are by screw bolt, thus screw is completely hiding, improve the sealing of mechanical arm; When rubber ring two ends offset with annular shoulder block and link end face respectively support tube is located time, rubber ring can be subject to reaction force that annular shoulder block applies and make the two side of this rubber ring respectively with annular shoulder block and link end face tight abutment, make gap remain sealing rubber ring stable position, effectively avoid the impurity such as dust, water to enter in gap and enter in body by the junction of screw and each parts the work affecting mechanical arm; Especially, when mechanical arm uses when working environment is in comparatively severe, the sealing effectiveness of the mechanical arm reached by complete for screw cache more protrudes.
In above-mentioned mechanical arm, the lateral wall of the link on described rubber ring, described body and described annular shoulder block three all flushes.
Rubber ring lateral wall and link and annular shoulder block lateral wall all flush, the probability that effective reduction rubber ring and miscellaneous part collide, thus rubber ring is stably located make gap remain sealing, effectively prevent the impurity such as dust, water enters in gap, further increase the sealing effectiveness of mechanical arm, make screw head be hidden in better in gap simultaneously.
In above-mentioned mechanical arm, the outer rim of described ring flange has annular gear edge, described annular shoulder block annular gear edge and rubber ring between and this annular shoulder block and described annular keep off edge offset.
By arranging annular gear edge, increase the contact area of annular gear edge and annular shoulder block, thus rubber ring two sides are closely reclined with annular shoulder block and link end face respectively, thus make gap remain sealing, effectively prevent the impurity such as dust, water enters in gap, further increase the sealing effectiveness of mechanical arm, make screw head be hidden in better in gap simultaneously.
In above-mentioned mechanical arm, described ring flange the inner has the guide part in cylindric protrusion, and described guide part is plugged in described support tube and the internal diameter of the external diameter of this guide part and described support tube matches.
By arranging guide part, guide effect is played to the movement of support tube, support tube is made to slide into position accurately, thus better supporting role is played to rubber ring, gap is made to remain sealing, effectively prevent the impurity such as dust, water enters in gap, further increases the sealing effectiveness of mechanical arm, makes screw head be hidden in better in gap simultaneously.
In above-mentioned mechanical arm, described end cap comprises a connecting portion cylindrically, and described ring flange is plugged on annular gear in described connecting portion and described along offseting with described connecting portion end face.
Under the effect of connecting portion, the two sides of rubber ring closely recline with annular shoulder block and link end face respectively, rubber ring is more stably located, gap is made to remain sealing, effectively prevent the impurity such as dust, water enters in gap, further increase the sealing effectiveness of mechanical arm, make screw head be hidden in better in gap simultaneously.
In above-mentioned mechanical arm, cylindrically, the distance between end face adjacent with link on described support tube and described annular shoulder block is more than or equal to the axial length of above-mentioned rubber ring to described rubber ring.
Namely rubber ring madial wall reclines mutually with support tube lateral wall completely, support tube is enable to play better supporting role, rubber ring is more stably located, gap is made to remain sealing, effectively prevent the impurity such as dust, water enters in gap, further increase the sealing effectiveness of mechanical arm, make screw head be hidden in better in gap simultaneously.
In above-mentioned mechanical arm, described resigning hole is rounded, and described spacing hole is circular arc and by seamlessly transitting between described spacing hole and described resigning hole.
By level and smooth fixing between spacing hole and resigning hole, screw when mounted can be rotated swimmingly.
Compared with prior art, this mechanical arm has the following advantages:
1, offseted by rubber ring one end and annular shoulder block and make annular shoulder block side and ring flange offset to be formed and seal; The rubber ring other end and link end face offset to be formed and seal, thus make screw head be hidden in gap; Ring flange and end cap pass through screw bolt, thus screw is completely hiding, improve the sealing of mechanical arm.
2, when rubber ring two ends offset with annular shoulder block and link end face respectively and are located by support tube, rubber ring can be subject to reaction force that annular shoulder block applies and have trend to link end-face deformation, thus rubber ring is stably positioned relative to the first and second frame part make gap remain sealing, effectively prevent the impurity such as dust, water enters in gap, further increase the sealing effectiveness of mechanical arm, make screw head be hidden in better in gap simultaneously.
3, under the effect of rubber ring, annular shoulder block and annular are kept off along offseting, make annular gear edge to the active force of annular shoulder block applying one to rubber ring direction, thus make rubber ring generation compression that its two sides are closely reclined with annular shoulder block and link end face respectively, thus make gap remain sealing, effectively prevent the impurity such as dust, water enters in gap, further increases the sealing effectiveness of mechanical arm, makes screw head be hidden in better in gap simultaneously.
Accompanying drawing explanation
Fig. 1 is the perspective view of mechanical arm.
Fig. 2 is the detonation configuration schematic diagram of mechanical arm.
Fig. 3 is the syndeton schematic diagram of screw and ring flange.
Fig. 4 is the sectional structure schematic diagram of mechanical arm.
Fig. 5 is the syndeton schematic diagram of end cap, support tube, ring flange and rubber ring.
In figure, 1, body; 1a, link; 2, ring flange; 2a, through hole; 2a1, resigning hole; 2a2, spacing hole; 2b, annular gear edge; 2c, guide part; 3, gap; 4, screw; 5, support tube; 5a, annular shoulder block; 6, rubber ring; 7, end cap; 7a, connecting portion.
Detailed description of the invention
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As depicted in figs. 1 and 2, mechanical arm comprises one is the compositions such as body 1, ring flange 2, end cap 7, support tube 5, rubber ring 6.
Wherein, ring flange 2 and body 1 circumference are connected, and ring flange 2 is connected mutually by some screws 4 and end cap 7.Body 1 comprises a link 1a cylindrically and this link 1a and ring flange 2 are coaxially arranged, and has gap 3 and the head of screw 4 is positioned at gap 3 between ring flange 2 and link 1a end face.
As shown in Figures 2 and 3, ring flange 2 axially runs through and has some through hole 2a circumferentially distributed, this through hole 2a comprises the resigning hole 2a1 that screw 4 head can be allowed to pass and the spacing hole 2a2 that screw 4 head can be stoped to pass, and spacing hole 2a2 is connected with described resigning hole 2a1.In the present embodiment, resigning hole 2a1 is rounded, and spacing hole 2a2 is circular arc and by seamlessly transitting between spacing hole 2a2 and resigning hole 2a1.By level and smooth fixing between spacing hole 2a2 and resigning hole 2a1, screw 4 when mounted can be rotated swimmingly.
As shown in Figure 5, support tube 5 cylindrically and this support tube 5 and ring flange 2 tubular arrange.This support tube 5 is positioned at gap 3, the lateral wall of the end that support tube 5 is adjacent with ring flange 2 has the annular shoulder block 5a that can offset with ring flange 2, and when support tube 5 axially moves down along ring flange 2, this support tube 5 is plugged in link 1a.
The lateral wall of support tube 5 outer end is socketed with the rubber ring 6 sealed in gap 3 and this rubber ring 6 cylindrically.Wherein, the distance between end face adjacent with link 1a on support tube 5 and annular shoulder block 5a is more than or equal to the axial length of rubber ring 6, and rubber ring 6 is more stably located.In the present embodiment, the lateral wall of support tube 5 outer end is positioned at gap 3, the both ends of the surface of this rubber ring 6 recline mutually with annular shoulder block 5a and link 1a end face respectively, thus rubber ring 6 both sides closely recline with annular shoulder block 5a and link 1a end face respectively under the effect of annular shoulder block 5a, by rubber ring 6 stable position, gap 3 is made to remain sealing, effectively prevent the impurity such as dust, water enters in gap 3, further increase the sealing effectiveness of mechanical arm, make screw 4 head be hidden in better in gap 3 simultaneously.
Further optimization, as shown in Figure 3 and Figure 4, the outer rim of ring flange 2 has annular gear along 2c, annular shoulder block 5a annular gear along between 2c and rubber ring 6 and this annular shoulder block 5a to keep off with annular and offset along 2c, thus make rubber ring 6 that more large deformation compression can occur, rubber ring 6 both sides are closely reclined with annular shoulder block 5a and link 1a end face respectively, by rubber ring 6 stable position, gap 3 is made to remain sealing, effectively prevent dust, the impurity such as water enter in gap 3, further increase the sealing effectiveness of mechanical arm, make screw 4 head be hidden in better in gap 3 simultaneously.
As shown in Figure 1, the lateral wall of rubber ring 6, link 1a and annular shoulder block 5a three all flushes.Rubber ring 6 lateral wall and link 1a and annular shoulder block 5a lateral wall all flush, the probability that effective reduction rubber ring 6 collides with miscellaneous part, thus rubber ring 6 is stably located make gap 3 remain sealing, effectively prevent the impurity such as dust, water enters in gap 3, further increase the sealing effectiveness of mechanical arm, make screw 4 head be hidden in better in gap 3 simultaneously.
Further optimization, as shown in Figure 4 and Figure 5, end cap 7 comprises a connecting portion 7a cylindrically, and ring flange 2 is plugged in connecting portion 7a and annular gear offsets along 2c and connecting portion 7a end face.
As shown in Fig. 2, Fig. 4 and Fig. 5, during installation, screw 4 bar portion is screwed in end cap 7 in advance, then make end cap 7 move toward ring flange 2 direction and end cap 7 and ring flange 2 are abutted together.And now, screw 4 head passes the resigning hole 2a1 on ring flange 2 and is positioned at gap 3.Then rotating end cap 7 makes screw 4 be positioned at spacing hole 2a2 on ring flange 2.Then spanner to be extend in gap 3 and screw 4 is tightened, because screw 4 head diameter is greater than the groove width of spacing hole 2a2, thus screw 4 stably being located.Then by support tube 5 toward pull-up toward and make guide part 2c be plugged in support tube 5, finally on support tube 5 outer end, support tube 5 is located by sheathed rubber ring 6, is sealed in gap 3 simultaneously.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (7)
1. a mechanical arm, the ring flange (2) comprising body (1) and be connected with body (1) circumference, described ring flange (2) is fixed with end cap (7) by screw (4), it is characterized in that, described body (1) comprises a link (1a) cylindrically and this link (1a) and ring flange (2) are coaxially arranged, between the end face of the link (1a) on described ring flange (2) and body (1), there is gap (3), described screw (4) head is positioned at gap (3), described ring flange (2) end face is provided with some through holes (2a) circumferentially distributed, described through hole (2a) comprises the resigning hole (2a1) that screw (4) head can be allowed to pass and the spacing hole (2a2) that screw (4) head can be stoped to pass, described spacing hole (2a2) is connected with described resigning hole (2a1), be provided with in described gap (3) and can move axially along ring flange (2) and support tube (5) cylindrically, the lateral wall of the upper end adjacent with ring flange (2) of described support tube (5) has annular shoulder block (5a), described annular shoulder block (5a) and described ring flange (2) offset, described support tube (5) lateral wall is socketed with rubber ring (6), the both ends of the surface of described rubber ring (6) offset with the end face of the link (1a) on described annular shoulder block (5a) and body (1) respectively.
2. mechanical arm according to claim 1, it is characterized in that, the lateral wall of the link (1a) on described rubber ring (6), described body (1) and described annular shoulder block (5a) three all flushes.
3. mechanical arm according to claim 1 and 2, it is characterized in that, the outer rim of described ring flange (2) has annular gear along (2b), described annular shoulder block (5a) be positioned at annular gear along between (2b) and rubber ring (6) and this annular shoulder block (5a) and described annular keep off edge (2b) and offset.
4. mechanical arm according to claim 1, it is characterized in that, described ring flange (2) the inner has the guide part (2c) in cylindric protrusion, and described guide part (2c) is plugged in described support tube (5) and the internal diameter of the external diameter of this guide part (2c) and described support tube (5) matches.
5. mechanical arm according to claim 3, it is characterized in that, described end cap (7) comprises a connecting portion (7a) cylindrically, and described ring flange (2) is plugged on annular gear in described connecting portion (7a) and described and offsets with described connecting portion (7a) end face along (2b).
6. mechanical arm according to claim 1, it is characterized in that, cylindrically, the distance between the end face that the link (1a) of described support tube (5) above and on body (1) is adjacent and described annular shoulder block (5a) is more than or equal to the axial length of above-mentioned rubber ring (6) to described rubber ring (6).
7. mechanical arm according to claim 1, it is characterized in that, described resigning hole (2a1) is rounded, and described spacing hole (2a2) is in circular arc and by seamlessly transitting between described spacing hole (2a2) and described resigning hole (2a1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520019971.0U CN204414099U (en) | 2015-01-12 | 2015-01-12 | A kind of mechanical arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520019971.0U CN204414099U (en) | 2015-01-12 | 2015-01-12 | A kind of mechanical arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204414099U true CN204414099U (en) | 2015-06-24 |
Family
ID=53464504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520019971.0U Withdrawn - After Issue CN204414099U (en) | 2015-01-12 | 2015-01-12 | A kind of mechanical arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204414099U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552277A (en) * | 2015-01-12 | 2015-04-29 | 浙江琦星电子有限公司 | Manipulator |
| CN105931870A (en) * | 2016-06-06 | 2016-09-07 | 平高集团有限公司 | Support conductor and high-voltage switch using conductor |
-
2015
- 2015-01-12 CN CN201520019971.0U patent/CN204414099U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552277A (en) * | 2015-01-12 | 2015-04-29 | 浙江琦星电子有限公司 | Manipulator |
| CN104552277B (en) * | 2015-01-12 | 2016-03-30 | 浙江琦星电子有限公司 | A kind of mechanical arm |
| CN105931870A (en) * | 2016-06-06 | 2016-09-07 | 平高集团有限公司 | Support conductor and high-voltage switch using conductor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150624 Effective date of abandoning: 20160330 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |