CN207255598U - A kind of handling gripper by gravity self-locking - Google Patents
A kind of handling gripper by gravity self-locking Download PDFInfo
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- CN207255598U CN207255598U CN201721298415.7U CN201721298415U CN207255598U CN 207255598 U CN207255598 U CN 207255598U CN 201721298415 U CN201721298415 U CN 201721298415U CN 207255598 U CN207255598 U CN 207255598U
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- clamping jaw
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- fulcrum
- pipe
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Abstract
A kind of handling gripper by gravity self-locking is the utility model is related to, belongs to electric power tower production automation erection welding technical field.Technical solution is：The clamping jaw (2) rotates around axis (4), clamping jaw (2) is upper plane above, equipped with groove (10), two joints are respectively front fulcrum (11) and rear fulcrum (12) between plane on groove (10) and clamping jaw (2), when plane is horizontal on clamping jaw (2), the axial line of groove (10) is overlapped with the center of axis (4).It can be mounted on two trailing arms of carrier, can also be mounted on caching rack, the utility model can realize that the clamping to workpiece is loosened in trailing arm lifting process, and attitude stabilization is kept by workpiece self gravitation.The utility model is simple in structure, occupy little space, manufactures that cost is low, convenient to use, maintenance cost is low, solves in tower manufacturing process, and automatic after pipe welding equipment flange and connecting plate determines posture transmission problem.
Description
Technical field
A kind of handling gripper by gravity self-locking is the utility model is related to, after pipe and other annex eccentric assemblings
Determine posture automatic transportation, belong to electric power tower production automation erection welding technical field.
Background technology
Transport why to determine posture after pipe and other annex eccentric assemblings, be by the characteristics of tower part and making work
What skill determined, for steel pipe by both ends welding equipment flange, next process is exactly connecting plate erection welding, and multigroup connecting plate is substantially mutual in pairs
Center that is perpendicular and crossing pipe and steel pipe welding equipment.Position of the quantity of each workpiece upper plate on steel pipe be it is random,
Size is also different, and the smaller connecting plate logarithm of diameter is more.How automatic transportation is most steady to next station, workpiece after connecting plate assembling
Certainly connecting plate is downward for fixed posture, but if connecting plate is downward, the trailing arm of logistics trolley can not be realized from following support workpiece,
Because trailing arm position must be fixed, connecting plate position is but not fixed, and may thus be held in the palm and be arrived connecting plate, it is also possible to which support arrives pipe.So
Make connecting plate upward, trailing arm only accounts for 270 ° of scopes below pipe, is only feasible.This requires pipe transport will fix this
Posture, and this posture is a unstable posture, once run into vibrations, workpiece will unstability, so needing a fixture
This posture is kept in transportational process.
At present, to keep determining posture automatic transportation after pipe and other annex eccentric assemblings, common way is exactly to set
The fixture of hydraulic power is counted, first ensures, by Workpiece clamping, then to transport again, since tower steel pipe caliber scope is from φ 219-
1000mm spans are too big, can the hydraulically operated fixture too complex that can smoothly join again compatible at the same time, i.e., it is enabled to do, during work delivery
In order to avoid fixture, the lifting travel of trolley must increase, and space can not meet.
Utility model content
The utility model aim is to provide a kind of handling gripper by gravity self-locking, when workpiece is with jaws contact, contact point
The support reaction for locating to produce is related to diameter of work, gravity, and diameter of work is smaller, and support reaction force of gravity multiple proportion is bigger.Then
When workpiece is smaller, since support reaction force of gravity multiple proportion is big, with regard to big, moment of friction is also multiplied frictional force, just right
Such a workpiece is answered due to needing big stabilizing moment connecting plate logarithm more；When pipe diameter is larger, the gravity of its own is just
Through very big, moment of friction is also corresponding big, it is ensured that pipe posture does not change during workpiece transport；Solves background
The above problem existing for technology.
The technical solution of the utility model is：
A kind of handling gripper by gravity self-locking, comprising chuck body and clamping jaw, clamping jaw is arranged on chuck body by axis
On, clamping jaw is arranged in pairs, and the chuck body between each pair clamping jaw is equipped with arc groove, the center line of arc groove with this to folder
Center line between pawl overlaps；The clamping jaw pivoting, is upper plane above clamping jaw, and equipped with groove, groove on clamping jaw with putting down
Two joints between face, are respectively front fulcrum and rear fulcrum, when plane is horizontal on clamping jaw, the center line of groove
Overlapped with the center of axis.
The front fulcrum and rear fulcrum are arc-shaped fulcrum, and front fulcrum and rear fulcrum are arranged symmetrically in the center line two of groove
Side.
The chuck body is spliced by plurality of steel plates, including base, transverse slat and two pieces of risers, is welded on base horizontal
Plate, the risers of two pieces of parallel arrangements of welding above transverse slat；Arc groove is arranged on two pieces of risers, and arc groove both sides are symmetrically set
There is square slot, axis is the flat axis of two side millings, is arranged in square slot, is arranged on the clamping jaw on axis between two pieces of risers
Space in；The axis is equipped with bearing, and claw is arranged on bearing.
The both sides of the bearing are equipped with catch.
Groove on the clamping jaw is matched with welding workpiece, and welding workpiece includes electric power tower, and electric power tower is by pipe, method
Blue and connecting plate is formed, and the both ends of pipe are equipped with flange.The connecting plate of multipair V-arrangement arrangement is set on pipe, is spaced between each pair connecting plate
90 °, connecting plate is perpendicular to pipe surface layout.The connecting plate opening upwards of V-arrangement arrangement, the front fulcrum of the groove both sides on clamping jaw and after
Fulcrum is contacted with pipe surface, and a pair of of clamping jaw shares four supporting points and contacted with pipe surface, clamping jaw and pipe surface contact point,
It is respectively positioned on below the connecting plate of upward opening V-arrangement arrangement.The bottom of groove is not touched on the pipe surface；Do not touch on the pipe surface
And the bottom of arc groove.
The chuck body can be mounted on two trailing arms of carrier, can be also mounted on caching rack.
The utility model good effect：The utility model is simple in structure, occupy little space, to manufacture cost low, easy to use
Fast, maintenance cost is low, solves in tower manufacturing process, and the posture transmission of determining automatically after pipe welding equipment flange and connecting plate is asked
Topic.
Brief description of the drawings
Fig. 1 is the utility model embodiment overall structure diagram（Work status are not clamped）；
Fig. 2 is the utility model embodiment schematic cross-sectional view（Work status are not clamped）；
Fig. 3 is welding workpiece schematic diagram；
Fig. 4 is schematic diagram when the utility model clamps workpiece；
In figure：Chuck body 1, clamping jaw 2, catch 3, axis 4, bearing 5, screw 6, flange 7, connecting plate 8, pipe 9, groove 10,
Front fulcrum 11, rear fulcrum 12, square slot 13, arc groove 14.
Embodiment
Below in conjunction with attached drawing, the utility model is described further by embodiment.
A kind of handling gripper by gravity self-locking, comprising chuck body 1 and clamping jaw 2, clamping jaw 2 is arranged on fixture sheet by axis
On body, clamping jaw 2 is arranged in pairs, and the chuck body 1 between each pair clamping jaw 2 is equipped with arc groove 14, the center of arc groove 14
Line overlaps the center line between clamping jaw 2 with this；The clamping jaw 2 is rotated around axis 4, and clamping jaw 2 is above upper plane, equipped with groove
10, two joints on groove 10 and clamping jaw 2 between plane are respectively front fulcrum 11 and rear fulcrum 12, on clamping jaw 2 at plane
When horizontal level, the center line of groove 10 is overlapped with the center of axis 4.
The front fulcrum 11 and rear fulcrum 12 are arc-shaped fulcrum, and front fulcrum 11 and rear fulcrum 12 are arranged symmetrically in groove 10
Center line both sides.
The chuck body 1 is spliced by plurality of steel plates, including base 17, transverse slat 16 and two pieces of risers 15, base 17
Upper welding transverse slat 16, transverse slat 16 weld the riser 15 of two pieces of parallel arrangements above；Arc groove 14 is arranged on two pieces of risers 15,
14 both sides of arc groove are arranged with square slot 13, and axis 4 is the flat axis of two side millings, is arranged in square slot 13, is arranged on
Clamping jaw 2 on axis is in the space between two pieces of risers；The axis 4 is equipped with bearing 5, and claw is arranged on bearing 5.
The claw quantity for a pair more than, structure is identical, and equal arranged carries out workpiece in 14 both sides of arc groove
Multiple spot clamping.
The both sides of the bearing 5 are equipped with catch 3.
Groove 10 on the clamping jaw 2 is matched with welding workpiece, and welding workpiece includes electric power tower, and electric power tower is by pipe
9th, flange 7 and connecting plate 8 are formed, and the both ends of pipe 9 are equipped with flange 7.The connecting plate 8 of multipair V-arrangement arrangement is set on pipe 9, and each pair connects
90 ° are spaced between plate 8, connecting plate 8 is perpendicular to 9 surface layout of pipe.8 opening upwards of connecting plate of V-arrangement arrangement, the groove on clamping jaw 2
The front fulcrum 11 and rear fulcrum 12 of 10 both sides are contacted with 9 surface of pipe, and a pair of of clamping jaw 2 shares four supporting points and 9 surface of pipe
Contact, clamping jaw 2 and 9 surface contact point of pipe, are respectively positioned on the lower section of connecting plate 8 of upward opening V-arrangement arrangement.9 surface of pipe is not
Touch the bottom of groove 10；The bottom of arc groove 14 is not touched on 9 surface of pipe.
The chuck body 1 is equipped with mounting hole, can be mounted on two trailing arms of carrier, can also be mounted in caching rack
On.
The present embodiment is chuck body 1 on two trailing arms of carrier.
Chuck body 1 is installed on two trailing arms of carrier, workpiece（Electric power tower）Pipe 9 on complete connecting plate 8
After welding, the connecting plate that V-type is arranged first is turned to opening upwards position by assembly machine, the trailing arm of carrier is under retracted state along rail
Road walks to immediately below workpiece, and the center of two clamping jaws 2 of trailing arm upper fixture body 1 is overlapped with 9 center of pipe, at this time, claw 2
Under the effect of gravity, upper plane is horizontal；Trailing arm lifts, and pipe surface is first contacted with the rear fulcrum 12 on each claw 2；
Continue to lift with trailing arm, claw 2 is rotated centered on axis 4, and the front fulcrum 11 on claw 2 closes up to pipe；When trailing arm lifts height
Spend to two claws and when sharing four supporting points and all being contacted with 9 surface of pipe, stop lifting, clamping jaw 2 and 9 surface of pipe
Four contact points, are respectively positioned on the lower section of connecting plate 8 of upward opening V-arrangement arrangement；
Assembly machine chuck loosens the constraint to pipe 9 at this time, and workpiece is fallen on claw under gravity, and claw is by work
Part is embraced；Carrier walks to welding position, and the workpiece centre on a little higher than carrier of chuck hub of welding position, works as welding post
Chuck when clamping pipe, the contact acnode above clamping jaw departs from pipe surface, and trailing arm declines, effect of the claw in self gravitation
Under be pivoted, until level, claw completely disengages pipe, completes workpiece handling.
If be used cooperatively using the utility model and caching rack, chuck body is installed on caching rack.
Claims (4)
- A kind of 1. handling gripper by gravity self-locking, it is characterised in that：It is logical comprising chuck body (1) and clamping jaw (2), clamping jaw (2) Cross axis to be arranged in chuck body, clamping jaw (2) is arranged in pairs, and it is recessed that the chuck body (1) between each pair clamping jaw (2) is equipped with arc Groove (14), the center line of arc groove (14) overlap the center line between clamping jaw (2) with this；The clamping jaw (2) turns around axis (4) Dynamic, clamping jaw (2) is upper plane above, equipped with groove (10), two joints on groove (10) and clamping jaw (2) between plane, Respectively front fulcrum (11) and rear fulcrum (12), when plane is horizontal on clamping jaw (2), the center line and axis of groove (10) (4) center overlaps.
- A kind of 2. handling gripper by gravity self-locking according to claim 1, it is characterised in that：The front fulcrum (11) and Rear fulcrum (12) is arc-shaped fulcrum, and front fulcrum (11) and rear fulcrum (12) are arranged symmetrically in the center line both sides of groove (10).
- A kind of 3. handling gripper by gravity self-locking according to claim 1 or 2, it is characterised in that：The chuck body (1) it is spliced by plurality of steel plates, including base (17), transverse slat (16) and two pieces of risers (15), base weld transverse slat on (17) (16), transverse slat (16) welds the riser (15) of two pieces of parallel arrangements above；Arc groove (14) is arranged on two pieces of risers (15), Arc groove (14) both sides are arranged with square slot (13), and axis (4) is the flat axis of two side millings, is arranged on square slot (13) It is interior, the clamping jaw on axis (2) is arranged in the space between two pieces of risers；The axis (4) is equipped with bearing (5), and claw is set Put on bearing (5).
- A kind of 4. handling gripper by gravity self-locking according to claim 3, it is characterised in that：The two of the bearing (5) Side is equipped with catch (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721298415.7U CN207255598U (en) | 2017-10-10 | 2017-10-10 | A kind of handling gripper by gravity self-locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721298415.7U CN207255598U (en) | 2017-10-10 | 2017-10-10 | A kind of handling gripper by gravity self-locking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207255598U true CN207255598U (en) | 2018-04-20 |
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ID=61916803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721298415.7U Active CN207255598U (en) | 2017-10-10 | 2017-10-10 | A kind of handling gripper by gravity self-locking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207255598U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107538177A (en) * | 2017-10-10 | 2018-01-05 | 唐山开元自动焊接装备有限公司 | A kind of handling gripper and method by gravity self-locking |
| CN108326596A (en) * | 2018-04-24 | 2018-07-27 | 爱发科东方真空(成都)有限公司 | Workpiece positioning clamp |
| CN113458484A (en) * | 2021-07-03 | 2021-10-01 | 苏涛 | Large-diameter pipe cutting equipment |
-
2017
- 2017-10-10 CN CN201721298415.7U patent/CN207255598U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107538177A (en) * | 2017-10-10 | 2018-01-05 | 唐山开元自动焊接装备有限公司 | A kind of handling gripper and method by gravity self-locking |
| CN107538177B (en) * | 2017-10-10 | 2024-03-15 | 唐山开元自动焊接装备有限公司 | Conveying clamp and method capable of self-locking by gravity |
| CN108326596A (en) * | 2018-04-24 | 2018-07-27 | 爱发科东方真空(成都)有限公司 | Workpiece positioning clamp |
| CN113458484A (en) * | 2021-07-03 | 2021-10-01 | 苏涛 | Large-diameter pipe cutting equipment |
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