CN209716838U - Series parallel type five degree of freedom welding robot - Google Patents
Series parallel type five degree of freedom welding robot Download PDFInfo
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- CN209716838U CN209716838U CN201920463444.7U CN201920463444U CN209716838U CN 209716838 U CN209716838 U CN 209716838U CN 201920463444 U CN201920463444 U CN 201920463444U CN 209716838 U CN209716838 U CN 209716838U
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- trunk body
- back link
- supporting assembly
- degree
- welding robot
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Abstract
The utility model discloses a kind of series parallel type five degree of freedom welding robot, including executing head, pedestal, the main trunk body being rotatably arranged on pedestal, secondary trunk body, connect with main trunk body and secondary trunk body and for adjusting the apparatus for adjusting position of distance between secondary trunk body and main trunk body and being connect and the 3-freedom parallel mechanism of the posture that is used to adjust execution head with secondary trunk body and the head that executes.The series parallel type five degree of freedom welding robot of the utility model can reduce the inertia for executing head end, and working space is big using the hybrid connected structure of " series connection of+two axis of parallel three NC axes ", and precision is high.
Description
Technical field
The utility model belongs to robotic technology field, specifically, the utility model relates to a kind of series parallel type five is free
Spend welding robot.
Background technique
Existing industrial welding robot is all to make execution head complete welding using servo motor using concatenated mode to move
To make, the inertia that this has also resulted in executing head end is larger, precision when welding is seriously affected, but also welding robot
Control system becomes more complicated, therefore solves this design drawback.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model mentions
For a kind of series parallel type five degree of freedom welding robot, it is therefore an objective to reduce the inertia for executing head end.
To achieve the goals above, the technical solution that the utility model is taken are as follows: series parallel type five degree of freedom welding robot,
Including executing head, pedestal, the main trunk body being rotatably arranged on pedestal, secondary trunk body and main trunk body and secondary trunk body
Connection and for adjust between secondary trunk body and main trunk body the apparatus for adjusting position of distance and with secondary trunk body and described hold
The 3-freedom parallel mechanism of wardrobe connection and the posture for adjusting execution head.
The main trunk body is L-shaped structure, and main trunk body includes under the trunk body being rotatably arranged on the pedestal
Portion and the trunk body top connecting with trunk body lower part, trunk body lower part is connect with the first motor being set on pedestal.
The apparatus for adjusting position include connect with the main trunk body and the secondary trunk body and can in unfolded state and
The first supporting assembly, the second supporting assembly, third supporting assembly and the 4th supporting assembly switched between folded state, the
One supporting assembly and third supporting assembly be it is positioned opposite, the second supporting assembly and the 4th supporting assembly are positioned opposite.
The apparatus for adjusting position further includes being set on the main trunk body and for mentioning to first supporting assembly
It is provided with controlling the second motor of the driving force that the first supporting assembly switches between unfolded state and folded state.
First supporting assembly include with the first back link of the main trunk body rotation connection and with first after connect
First front rod of bar and the secondary trunk body rotation connection, the third supporting assembly include the main trunk body rotation connection
Third back link and third front rod with third back link and the secondary trunk body rotation connection, the first back link and the
Three front rods are parallel, and the first front rod is parallel with third back link.
First back link is connect with the second motor being set on the main trunk body, and the second motor is servo electricity
Machine.
Second supporting assembly include with the second back link of the main trunk body rotation connection and with second after connect
Second front rod of bar and the secondary trunk body rotation connection, the 4th supporting assembly include the main trunk body rotation connection
The 4th back link and the 4th front rod with the 4th back link and the secondary trunk body rotation connection, the second back link and the
Four front rods are parallel, and the second front rod is parallel with the 4th back link.
The 3-freedom parallel mechanism includes connecting and telescopic stretching with the secondary trunk body and the executions head
Part, extensible member are arranged three.
The extensible member is hydraulic cylinder or cylinder.
The 3-freedom parallel mechanism further includes the support rod connecting with the execution head and the secondary trunk body, and three
The extensible member is distributed in around support rod and to be uniformly distributed circumferentially.
The series parallel type five degree of freedom welding robot of the utility model, using the mixed connection knot of " series connection of+two axis of parallel three NC axes "
Structure can reduce the inertia for executing head end, and working space is big, and precision is high.
Detailed description of the invention
This specification includes the following drawings, and shown content is respectively:
Fig. 1 is the structural schematic diagram of the utility model series parallel type five degree of freedom welding robot；
Fig. 2 is the cross-sectional view of pedestal；
Fig. 3 is the structural schematic diagram of main trunk body；
Fig. 4 is the structural schematic diagram of the first back link；
Fig. 5 is the structural schematic diagram of the second back link, third back link and the 4th back link；
Fig. 6 is the structural schematic diagram of the first front rod, the second front rod, third front rod and the 4th front rod；
Fig. 7 is the structural schematic diagram of secondary trunk body；
Fig. 8 is the structural schematic diagram of support rod；
Fig. 9 is the structural schematic diagram of the first extensible member, the second extensible member and third extensible member；
Figure 10 is the structural schematic diagram for executing head；
In the figure, it is marked as 1, pedestal；1A, through-hole；1B, blind hole；2, main trunk body；2A, waist joint axis；It is cut with scissors after 2B, third
Chain seat；Hinge seat after 2C, the 4th；Hinge seat after 2D, second；Hinge seat after 2E, first；2F, trunk body lower part；2G, trunk body
Top；3, the second motor；4, the second back link；4A, connecting rod link seat；4B, pin hole；5, the first back link；5A, drive shaft；5B,
Connecting rod link seat；6, the first front rod；6A, pin hole；6B, pin hole；7, the second front rod；7A, pin hole；7B, pin hole；8, secondary trunk
Body；Hinge seat before 8A, third；Hinge seat before 8B, the 4th；8C, truncated cone-shaped ball hinge；8D, truncated cone-shaped ball hinge；8E, truncated cone-shaped
Ball hinge；8F, truncated cone-shaped ball hinge；Hinge seat before 8G, first；Hinge seat before 8H, second；9, support rod；9A, bulb；9B, ball
Head；10, the first extensible member；Bulb 1 before 10A, first；10B, First piston bar；Bulb after 10C, first；10D, first piston；
10E, the first cylinder barrel；11, head is executed；11A, truncated cone-shaped ball hinge；11B, truncated cone-shaped ball hinge；11C, truncated cone-shaped ball hinge；
11D, spherical ball hinge；11E, connecting rod；11F, head ontology is executed；12, the second extensible member；Bulb before 12A, second；12B,
Two piston rods；Bulb after 12C, second；12D, second piston；12E, the second cylinder barrel；13, third extensible member；13A, third forecourt
Head；13B, third piston rod；Bulb after 13C, third；13D, third piston；13E, third cylinder barrel；14, the 4th front rod；14A,
Pin hole；14B, pin hole；15, third front rod；15A, pin hole；15B, pin hole；16, third back link；16A, connecting rod link seat；
16B, pin hole；17, the 4th back link；17A, connecting rod link seat；17B, pin hole.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to specific embodiment of the present utility model further detailed
Thin explanation, it is therefore an objective to help those skilled in the art to the design of the utility model, technical solution have it is more complete, accurate and
Deep understanding, and facilitate its implementation.
It should be noted that in embodiment disclosed below, " first ", " second ", " third " and " the 4th " simultaneously
Not representative structure and/or absolute differentiation relationship functionally do not represent the successive sequence that executes yet, and just for the sake of description
It is convenient.
As shown in Figures 1 to 10, the utility model provides a kind of series parallel type five degree of freedom welding robot, including executes
Head, pedestal 1, the main trunk body 2 being rotatably arranged on pedestal 1, secondary trunk body 8 and main trunk body 2 and secondary trunk body 8 connect
Connect and for adjust between secondary trunk body 8 and main trunk body 2 apparatus for adjusting position of distance and with secondary trunk body 8 and execution head
The 3-freedom parallel mechanism of connection and the posture for adjusting execution head.
Specifically, as shown in Figure 1 to Figure 3, pedestal 1 and main trunk body 2 and apparatus for adjusting position form two-freedom string
Online structure, to realize the rotary motion and the linear motion that execute head.Main trunk body 2 is L-shaped structure, and main trunk body 2 includes that can revolve
The trunk body lower part 2F being set on pedestal 1 turned the and trunk body top 2G being connect with trunk body lower part 2F, trunk body lower part
2F and the motor shaft for the first motor (being not shown in the figure, the model TSC06401C2NL of the motor) being set on pedestal 1 connect
It connects, first motor is servo motor.
As shown in Figure 1 to Figure 3, trunk body top 2G and trunk body lower part 2F all has certain length, trunk body top
The length direction of 2G and the length direction of trunk body lower part 2F are perpendicular, one end and body on the length direction of trunk body top 2G
One end on the length direction of stem body lower part 2F is fixedly connected, on the length direction of apparatus for adjusting position and trunk body top 2G
The other end connects, and the other end on the length direction of trunk body lower part 2F is rotatablely connected by waist joint axis 2A and pedestal 1.Pedestal
11 be truncated cone-shaped structure, is provided with through-hole 1A and blind hole 1B along rotary table center line down from its upper surface, waist joint axis 2A passes through logical
It is inserted into blind hole 1B after the 1A of hole.Waist joint axis 2A is connect with first motor, and waist joint axis 2A receives the drive provided by first motor
Power, first motor operating, can drive main trunk body 2 to be rotated, and main trunk body 2 is free by apparatus for adjusting position and three
It spends parallel institution and drives execution head synchronous rotary, and then realize the rotary motion for executing head.In rotation when main trunk body 2 rotates
The axis of the axis of heart line namely waist joint axis 2A, waist joint axis 2A is parallel with the length direction of trunk body lower part 2F, trunk
Body lower part 2F is stretched out towards the top of pedestal 1, the horizontal top in pedestal 1 trunk body top 2G.And main trunk body 2 can phase
360 degree rotation is carried out to pedestal 1, so that the working space of welding robot is bigger.
Apparatus for adjusting position is for linear motion along direction initialization for realizing head is executed, the direction initialization and trunk body top
The length direction of 2G is parallel, namely by adjusting the distance between secondary trunk body 8 and main trunk body 2, realizes and execute head position
Adjusting.As shown in Figures 1 to 6, which includes connecting and being unfolded with main trunk body 2 and secondary trunk body 8
The first supporting assembly, the second supporting assembly, the third supporting assembly and the 4th switched between state and folded state is supported
Component, the first supporting assembly and third supporting assembly be it is positioned opposite, the second supporting assembly and the 4th supporting assembly are with respect to cloth
It sets.First supporting assembly, the second supporting assembly, third supporting assembly and the 4th supporting assembly are located at secondary trunk body 8 and trunk body
Between the 2G of top, the first supporting assembly, the second supporting assembly, third supporting assembly and the 4th supporting assembly are to set center line
Centered on be uniformly distributed circumferentially, the setting center line is parallel with the length direction of trunk body top 2G.First supporting assembly,
Second supporting assembly, third supporting assembly and the synchronization of the 4th supporting assembly switch between unfolded state and folded state,
And then realize that apparatus for adjusting position switches between elongation state and contraction state.First supporting assembly, the second support group
When part, third supporting assembly and the 4th supporting assembly switch to folded state by unfolded state, the length of apparatus for adjusting position by
Decrescence small, apparatus for adjusting position switches to contraction state, so that the distance between main trunk body 2 and secondary trunk body 8 are gradually
Reduce, namely execution the distance between head and pedestal 1 are gradually reduced；First supporting assembly, the second supporting assembly, third branch
It holds component and when the 4th supporting assembly switches to unfolded state by folded state, the length of apparatus for adjusting position is gradually increased, position
It sets regulating device and switches to elongation state, so that the distance between main trunk body 2 and secondary trunk body 8 are gradually increased, namely
It is gradually increased so that executing the distance between head and pedestal 1.
As shown in Figures 1 to 6, apparatus for adjusting position further includes being set on main trunk body 2 and for the first support group
Part is provided to control the second motor 3 of the driving force that the first supporting assembly switches between unfolded state and folded state,
Second motor 3 is fixed on trunk body top 2G.First supporting assembly include with main trunk body 2 rotation connection first after
Connecting rod 5 and the first front rod 6 being rotatablely connected with the first back link 5 and secondary trunk body 8, third supporting assembly includes main trunk
The third back link 16 that body 2 is rotatablely connected and the third front rod 15 with third back link 16 and secondary 8 rotation connection of trunk body,
First back link 5 is parallel with third front rod 15, and the first front rod 6 is parallel with third back link 16.First back link, 5 He
First front rod 6 is the strip rod piece with certain length, one end on the length direction of the first back link 5 and main trunk
Body 2 is rotatablely connected, and the other end on the length direction of the first back link 5 and one end on the length direction of the first front rod 6 turn
Dynamic to connect, the other end and secondary trunk body 8 on the length direction of the first front rod 6 are rotatablely connected.First back link 5 be set to
The second motor 3 (the model TSC06401C2NL of the motor) connection on main trunk body 2, the second motor 3 are servo motor.
As shown in Fig. 1, Fig. 3 to Fig. 6, a drive shaft 5A is fixedly installed in one end on the length direction of the first back link 5,
The other end on the length direction of first back link 5 is equipped with connecting rod link seat 5B, cuts with scissors after being provided with first on trunk body top 2G
Chain seat 2E, hinge seat 2E has the axis hole for allowing drive shaft 5A to be inserted into after first, realizes the rotation connection with main trunk body 2, driving
Axis 5A is simultaneously fixedly connected with the motor shaft of the second motor 3.After the operating of second motor 3, the relatively main trunk of the first back link 5 can be made
Body 2 is rotated around the axis of drive shaft 5A, and the length direction of the axis and trunk body top 2G of drive shaft 5A is spatially perpendicular,
First back link 5 drive the first front rod 6 swung, the first front rod 6 drive secondary trunk body 8 relative to main trunk body 2 into
Row movement, realizes switching of first supporting assembly between unfolded state and folded state, and secondary trunk body 8 drives while mobile
Second supporting assembly, third supporting assembly and the synchronization of the 4th supporting assembly switch between unfolded state and folded state.
First back link 5 is rotatablely connected by pin shaft and the first front rod 6, and the connecting rod link seat 5B of the first back link 5 is with allowing pin shaft
The through-hole of insertion, the end of the first front rod 6 have the pin hole 6B for allowing the pin shaft to be inserted into.First front rod 6 passes through pin shaft and pair
Trunk body 8 is rotatablely connected, and hinge seat 8G has a through-hole for allowing the pin shaft to be inserted into before first be arranged on secondary trunk body 8, before first
The end of connecting rod 6 has the pin hole 6A for allowing pin shaft to be inserted into.
As shown in Fig. 1, Fig. 3 to Fig. 6, third back link 16 and third front rod 15 are the strip with certain length
Rod piece, the length direction of third back link 16 is parallel with the length direction of the first front rod 6, the length side of third front rod 15
To one end and the rotation of main trunk body 2 parallel with the length direction of the first back link 5, on the length direction of third back link 16
It connects, the other end on the length direction of third back link 16 and one end on the length direction of third front rod 15 rotate and connect
It connects, the other end on the length direction of third front rod 15 and secondary trunk body 8 are rotatablely connected.Third back link 16 passes through a pin shaft
It is rotatablely connected with main trunk body 2, one end on the length direction of third back link 16 is provided with the pin hole for allowing the pin shaft to be inserted into
Hinge seat 2B after third is provided on 16B, trunk body top 2G, hinge seat 2B has the axis hole for allowing pin shaft to be inserted into after third, real
Now with the rotation connection of main trunk body 2.When first back link 5 rotates, third back link 16 is rotated synchronously, and 16 turns of third back link
The rotation centerline (namely axis of drive shaft 5A) of rotation centerline (namely axis of pin shaft) and the first back link 5 when dynamic
The length direction of rotation centerline and trunk body top 2G when parallel and third back link 16 rotates is spatially perpendicular.
Third back link 16 is rotatablely connected by another pin shaft and third front rod 15, is set to the connecting rod of the end of third back link 16
Hinge seat 16A has the through-hole for allowing pin shaft to be inserted into, and the end of third front rod 15 has the pin hole 15B for allowing the pin shaft to be inserted into.The
Three front rods 15 are rotatablely connected by a pin shaft and secondary trunk body 8, and hinge seat 8A has and allows before the third being arranged on secondary trunk body 8
The through-hole of pin shaft insertion, the end of third front rod 15 have the pin hole 15A for allowing pin shaft to be inserted into.
As shown in Fig. 1, Fig. 3 to Fig. 6, the second supporting assembly include with main trunk body 2 rotation connection the second back link 4 with
And the second front rod 7 with the second back link 4 and secondary 8 rotation connection of trunk body, the 4th supporting assembly include that main trunk body 2 rotates
4th back link 17 of connection and the 4th front rod 14 being rotatablely connected with the 4th back link 17 and secondary trunk body 8, after second
Connecting rod 4 is parallel with the 4th front rod 14, and the second front rod 7 is parallel with the 4th back link 17.
As shown in Fig. 1, Fig. 3 to Fig. 6, the second back link 4 and the second front rod 7 are the elongated rods with certain length
Part, one end and main trunk body 2 on the length direction of the second back link 4 are rotatablely connected, on the length direction of the second back link 4
One end on the length direction of the other end and the second front rod 7 is rotatablely connected, the other end on the length direction of the second front rod 7
It is rotatablely connected with secondary trunk body 8.Second back link 4 is rotatablely connected by a pin shaft and main trunk body 2, the length of the second back link 4
One end on degree direction is provided with the pin hole 4B for allowing the pin shaft to be inserted into, hinge seat 2D after being provided with second on trunk body top 2G,
Hinge seat 2D has the axis hole for allowing pin shaft to be inserted into after second, realizes the rotation connection with main trunk body 2.The rotation of first back link 5
When, the second back link 4 rotates synchronously, after the rotation centerline (namely axis of pin shaft) and first when the second back link 4 rotates
The rotation when rotation centerline (namely axis of drive shaft 5A) of connecting rod 5 is spatially perpendicular and the second back link 4 rotates
The length direction of center line and trunk body top 2G is spatially perpendicular.Before second back link 4 passes through another pin shaft and second
Connecting rod 7 be rotatablely connected, be set to the end of the second back link 4 connecting rod link seat 4A have allow pin shaft be inserted into through-hole, second
The end of front rod 7 has the pin hole 7B for allowing the pin shaft to be inserted into.Second front rod 7 passes through a pin shaft and secondary 8 company of rotation of trunk body
It connects, hinge seat 8H has the through-hole for allowing the pin shaft to be inserted into, the end tool of the second front rod 7 before second be arranged on secondary trunk body 8
There is the pin hole 7A for allowing pin shaft to be inserted into.
As shown in Fig. 1, Fig. 3 to Fig. 6, the 4th back link 17 and the 4th front rod 14 are the strip with certain length
Rod piece, the length direction of the 4th back link 17 is parallel with the length direction of the second front rod 7, the length side of the 4th front rod 14
To one end and the rotation of main trunk body 2 parallel with the length direction of the second back link 4, on the length direction of the 4th back link 17
It connects, the other end on the length direction of the 4th back link 17 and one end on the length direction of the 4th front rod 14 rotate and connect
It connects, the other end on the length direction of the 4th front rod 14 and secondary trunk body 8 are rotatablely connected.4th back link 17 passes through a pin shaft
It is rotatablely connected with main trunk body 2, one end on the length direction of the 4th back link 17 is provided with the pin hole for allowing the pin shaft to be inserted into
Hinge seat 2C after being provided with the 4th on 17B, trunk body top 2G, hinge seat 2C has the axis hole for allowing pin shaft to be inserted into after the 4th, real
Now with the rotation connection of main trunk body 2.When first back link 5 rotates, the 4th back link 17 is rotated synchronously, the 4th 17 turns of back link
Rotation centerline (namely axis of pin shaft) when dynamic is parallel with the rotation centerline of the second back link 4 and the 4th back link 17
The length direction of rotation centerline and trunk body top 2G when rotation is spatially perpendicular, connects after the first back link 5, second
The rotation centerline of bar 4, third back link 16 and the 4th back link 17 is in perpendicular with the length direction of trunk body top 2G
Same plane in.4th back link 17 is rotatablely connected by another pin shaft and the 4th front rod 14, is set to the 4th back link
The connecting rod link seat 17A of 17 end has the through-hole for allowing pin shaft to be inserted into, and the end of the 4th front rod 14, which has, allows the pin shaft to insert
The pin hole 14B entered.4th front rod 14 is rotatablely connected by a pin shaft and secondary trunk body 8, before the 4th be arranged on secondary trunk body 8
Hinge seat 8B has the through-hole for allowing the pin shaft to be inserted into, and the end of the 4th front rod 14 has the pin hole 14A for allowing pin shaft to be inserted into.
As shown in fig. 7, the main part of secondary trunk body 8 is a truncated cone structure, there is a bigger diameter end and one
A miner diameter end, the diameter of bigger diameter end are greater than the diameter of miner diameter end.Before being equipped with first on the end face of the miner diameter end of the main part
Hinge seat 8B before hinge seat 8A and the 4th before hinge seat 8H, third before hinge seat 8G, second, in the bigger diameter end of the main part
End face is equipped with truncated cone-shaped ball hinge 8C, truncated cone-shaped ball hinge 8D, truncated cone-shaped ball hinge 8F and truncated cone-shaped ball hinge 8E, truncated cone-shaped
Ball hinge 8C, truncated cone-shaped ball hinge 8D, truncated cone-shaped ball hinge 8F are located at the end face of the bigger diameter end of the main part of secondary trunk body 8
Edge, the angle between each truncated cone-shaped ball hinge is 120 degree, and truncated cone-shaped ball hinge 8E is located at the main part of secondary trunk body 8
Bigger diameter end end face center.
The apparatus for adjusting position of above structure uses four groups of supporting assemblies, changes the bulky support knot of traditional robot
Structure alleviates the quality of robot, and inertia when making using regulating device adjusting position is substantially reduced, improve welding precision with
And reduce the complexity of control system；Four groups of supporting assemblies are circumferentially symmetrical, also ensure while mitigating quality
The intensity of welding robot；Since supporting assembly is long, it is achieved that executing the head range for linear motion along direction initialization
It is bigger, increase working space.
As shown in Fig. 1, Fig. 7 to Figure 10,3-freedom parallel mechanism includes connecting and can stretching with secondary trunk body 8 and execution head
The extensible member of contracting and the support rod 9 connecting with execution head and secondary trunk body 8, extensible member are arranged three, three extensible members distributions
Around support rod 9 and to be uniformly distributed circumferentially.Support rod 9 has certain length, on the length direction of support rod 9
One end is connect with secondary trunk body 8 by flexural pivot and is to connect at the center of secondary trunk body 8 with secondary trunk body 8, the length of support rod 9
The other end on degree direction is connect by flexural pivot with head is executed, and three extensible members are circumferentially uniform centered on setting center line
Distribution, the setting center line is parallel with the length direction of trunk body top 2G and the setting center line crosses support rod 9 and secondary body
The tie point of stem body 8, the axis of the setting center line namely secondary trunk body 8.Three extensible members are respectively the first extensible member 10,
One end of two extensible members 12 and third extensible member 13, the first extensible member 10 is connect by flexural pivot with secondary trunk body 8, the first extensible member
10 other end is connect by flexural pivot with head is executed, and one end of the second extensible member 12 is connect by flexural pivot with secondary trunk body 8, and second
The other end of extensible member 12 is connect by flexural pivot with head is executed, and one end of third extensible member 13 is connected by flexural pivot and secondary trunk body 8
It connects, the other end of third extensible member 13 is connect by flexural pivot with head is executed.By the flexible of three extensible members, realize and execute head
The adjusting of posture.
As shown in Fig. 7, Fig. 8 and Figure 10, the main part of support rod 99 is a cylindrical body, is distinguished at the both ends of cylindrical body
Bulb 9A, the bulb 9B of 9 axis of support rod are crossed equipped with the centre of sphere.Rotary table on the bulb 9A of 99 one end of support rod and secondary trunk body 8
The 8E connection of shape ball hinge, is between the two clearance fit, and bulb 9A is matched with truncated cone-shaped ball hinge 8E, forms spherical linkage.
The bulb 9B of 99 other end of support rod is connect with the ball hinge 11D executed on head, is between the two clearance fit, bulb 9B and ball
Free bearing 11D is matched, and forms spherical linkage.
As shown in Fig. 1, Fig. 7 to Figure 10, executes head and include the connecting rod 11E being connected and execute head ontology 11F, execute head
Ontology 11F is the component (such as welding gun) for executing welding movement, one end and execution head sheet on the length direction of connecting rod 11E
One end of body 11F is fixedly connected, and the other end on the length direction of connecting rod 11E is connect by flexural pivot with support rod 9, ball hinge
The end of connecting rod 11E is arranged in 11D.Execute head ontology 11F be equipped with truncated cone-shaped ball hinge 11A, truncated cone-shaped ball hinge 11B and
Truncated cone-shaped ball hinge 11C, truncated cone-shaped ball hinge 11A, truncated cone-shaped ball hinge 11B, truncated cone-shaped ball hinge 11C and connecting rod 11E are set
It sets in the same end for executing head ontology 11F, the first extensible member 10, the second extensible member 12 and third extensible member 13 are distributed in connecting rod
Around 11E and to be uniformly distributed circumferentially.One end of first extensible member 10 has the truncated cone-shaped for being embedded in and being arranged on secondary trunk body 8
In ball hinge 8F first after bulb 10C, bulb 10C is matched with truncated cone-shaped ball hinge 8F after first, forms spherical linkage；The
The other end of one extensible member 10 has bulb 10A before first for being embedded in and executing in the truncated cone-shaped ball hinge 11C on head, the first forecourt
Head 10A is matched with truncated cone-shaped ball hinge 11C, forms spherical linkage.One end of second extensible member 12, which has, is embedded in secondary trunk body 8
In the truncated cone-shaped ball hinge 8C of upper setting second after bulb 12C, bulb 12C is matched with truncated cone-shaped ball hinge 8C after second,
Form spherical linkage；Before the other end of second extensible member 12 has second in the truncated cone-shaped ball hinge 11A on insertion execution head
Bulb 12A, bulb 12A is matched with truncated cone-shaped ball hinge 11A before second, forms spherical linkage.One end of third extensible member 13
With bulb 13C after the third being embedded in the truncated cone-shaped ball hinge 8D being arranged on secondary trunk body 8, bulb 13C and rotary table after third
Shape ball hinge 8D is matched, and forms spherical linkage；There is the other end of third extensible member 13 insertion to execute the truncated cone-shaped ball on head
Bulb 13A before third in free bearing 11B, bulb 13A is matched with truncated cone-shaped ball hinge 11B before third, forms spherical linkage.
First extensible member 10, the second extensible member 12 and third extensible member 13 can be hydraulic cylinder, or cylinder.Such as figure
Shown in 9, the first extensible member 10 include the first cylindrical cylinder barrel 10E, the first piston 10D being set in the first cylinder barrel 10E and
The First piston bar 10B connecting with first piston 10D, First piston bar 10B and the first cylinder barrel 10E are coaxial arrangement, and first is living
One end of stopper rod 10B is fixedly connected with bulb 10A before first, and bulb 10A is located at the outside of the first cylinder barrel 10E before first, and first
The other end of piston rod 10B is inserted into the first cylinder barrel 10E and the end of First piston bar 10B is fixedly connected with first piston 10D,
One end of first cylinder barrel 10E is fixedly connected with bulb 10C after first.Second extensible member 12 include the second cylindrical cylinder barrel 12E,
The second piston 12D being set in the second cylinder barrel 12E and second piston bar 12B being connect with second piston 12D, second piston bar
12B and the second cylinder barrel 12E is coaxial arrangement, and one end of second piston bar 12B is fixedly connected with bulb 12A before second, before second
Bulb 12A is located at the outside of the second cylinder barrel 12E, and the other end of second piston bar 12B is inserted into the second cylinder barrel 12E and second piston
The end of bar 12B is fixedly connected with second piston 12D, and one end of the second cylinder barrel 12E is fixedly connected with bulb 12C after second.The
Three extensible members 13 include cylindrical third cylinder barrel 13E, the third piston 13D being set in third cylinder barrel 13E and live with third
Third the piston rod 13B, third piston rod 13B and third cylinder barrel 13E for filling in 13D connection are coaxial arrangement, third piston rod 13B's
One end is fixedly connected with bulb 13A before third, and bulb 13A is located at the outside of third cylinder barrel 13E, third piston rod 13B before third
Other end insertion third cylinder barrel 13E in and the end of third piston rod 13B be fixedly connected with third piston 13D, third cylinder barrel
One end of 13E is fixedly connected with bulb 13C after third.
When first extensible member 10 is hydraulic cylinder, the first extensible member 10 is connected by the electric hydraulic pump of pipeline and peripheral hardware, electricity
Hydrodynamic press pump is for hydraulic oil to be pumped in the first cylinder barrel 10E, and pipeline is hose, and electric hydraulic pump is located at welding robot
Outside enters hydraulic oil in the first cylinder barrel 10E, pushes first piston 10D to move along the axial direction into the hydraulic oil in cylinder barrel,
Realize the adjusting of the length of the first extensible member 10.Equally, when the second extensible member 12 is hydraulic cylinder, the second extensible member 12 passes through pipeline
It being connect with the electric hydraulic pump of peripheral hardware, for electric hydraulic pump for hydraulic oil to be pumped in the second cylinder barrel 12E, pipeline is hose,
Enter hydraulic oil in second cylinder barrel 12E, pushes second piston 12D to move along the axial direction into the hydraulic oil in cylinder barrel, realize
The adjusting of the length of second extensible member 12.Equally, when third extensible member 13 is hydraulic cylinder, third extensible member 13 is by pipeline and outside
If electric hydraulic pump connection, for electric hydraulic pump for hydraulic oil to be pumped in third cylinder barrel 13E, pipeline is hose, third
Enter hydraulic oil in cylinder barrel 13E, pushes third piston 13D to move along the axial direction into the hydraulic oil in cylinder barrel, realize third
The adjusting of the length of extensible member 13.
When first extensible member 10 is cylinder, the first extensible member 10 is connected by the electric air pump of pipeline and peripheral hardware, electronic gas
Pump is for compressed gas to be pumped in the first cylinder barrel 10E, and pipeline is hose, and electric air pump is located at the outside of welding robot,
Enter compressed gas in first cylinder barrel 10E, push first piston 10D to move along the axial direction into the compressed gas in cylinder barrel,
Realize the adjusting of the length of the first extensible member 10.Equally, the second extensible member 12 be cylinder when, the second extensible member 12 by pipeline with
The electric air pump of peripheral hardware connects, and for electric air pump for compressed gas to be pumped in the second cylinder barrel 12E, pipeline is hose, electronic
Air pump is located at the outside of welding robot, and compressed gas is entered in the second cylinder barrel 12E, pushes the into the compressed gas in cylinder barrel
Two piston 12D are move alonged the axial direction, and realize the adjusting of the length of the second extensible member 12.When third extensible member 13 is cylinder, the
Three extensible members 13 are connected by the electric air pump of pipeline and peripheral hardware, and electric air pump is used to compressed gas being pumped to third cylinder barrel
In 13E, pipeline is hose, and electric air pump is located at the outside of welding robot, enters compressed gas in third cylinder barrel 13E, enter
Compressed gas in cylinder barrel pushes third piston 13D to move along the axial direction, and realizes the adjusting of the length of third extensible member 13.
Execution head is realized by the way that 3-freedom parallel mechanism (being driven by hydraulic or air pressure) is arranged in welding robot end
The adjustment of three posture freedom degrees, since the design is by the way of in parallel, so that air pressure or fluid pressure drive device do not need cloth
It sets on welding robot, so that the inertia that end executes head is substantially reduced, improves the precision of positioning.
The welding robot of above structure uses the hybrid connected structure of " series connection of+two axis of parallel three NC axes ", vertical cloth
Set situation are as follows: can relatively rotate between pedestal 1 and main trunk body 2, main trunk body 2 can pass through parallel four side with secondary trunk body 8
Shape structure realizes relative movement, this is the attitude decoupling based on tandem principle to the device.Three parallel connections can be passed through by executing head
Extensible member realize pose adjustment relative to secondary trunk body 8, this is the attitude decoupling based on principle of parallel to the device.
The utility model is exemplarily described in conjunction with attached drawing above.Obviously, the utility model implements not
It is limited by aforesaid way.As long as the various unsubstantialities that the method concept and technical solution that use the utility model carry out
Improvement；Or it is not improved, the above-mentioned conception and technical scheme of the utility model are directly applied into other occasions, at this
Within the protection scope of utility model.
Claims (10)
1. series parallel type five degree of freedom welding robot, including execute head, it is characterised in that: it further include pedestal, rotatable setting
In on pedestal main trunk body, secondary trunk body, connect with main trunk body and secondary trunk body and be used to adjust secondary trunk body and main body
Between stem body the apparatus for adjusting position of distance and with secondary trunk body and it is described execute head connect and for adjust execution head appearance
The 3-freedom parallel mechanism of state.
2. series parallel type five degree of freedom welding robot according to claim 1, it is characterised in that: the main trunk body is L
Shape structure, main trunk body include the trunk body lower part being rotatably arranged on the pedestal and the body that connect with trunk body lower part
Stem body top, trunk body lower part are connect with the first motor being set on pedestal.
3. series parallel type five degree of freedom welding robot according to claim 1, it is characterised in that: the apparatus for adjusting position
Including connect and can be switched between unfolded state and folded state with the main trunk body and the secondary trunk body the
One supporting assembly, the second supporting assembly, third supporting assembly and the 4th supporting assembly, the first supporting assembly and third supporting assembly
To be positioned opposite, the second supporting assembly is positioned opposite with the 4th supporting assembly.
4. series parallel type five degree of freedom welding robot according to claim 3, it is characterised in that: the apparatus for adjusting position
It further include being set on the main trunk body and being opened up for providing first supporting assembly with controlling the first supporting assembly
Second motor of the driving force switched between open state and folded state.
5. series parallel type five degree of freedom welding robot according to claim 3, it is characterised in that: first supporting assembly
It is rotatablely connected including the first back link with the main trunk body rotation connection and with the first back link and the secondary trunk body
The first front rod, the third supporting assembly include the main trunk body rotation connection third back link and with after third
The third front rod of connecting rod and the secondary trunk body rotation connection, the first back link is parallel with third front rod, connects before first
Bar is parallel with third back link.
6. series parallel type five degree of freedom welding robot according to claim 5, it is characterised in that: first back link with
The the second motor connection being set on the main trunk body, the second motor are servo motor.
7. according to any series parallel type five degree of freedom welding robot of claim 3 to 6, it is characterised in that: described second
Supporting assembly include with the second back link of the main trunk body rotation connection and with the second back link and the secondary trunk body
Second front rod of rotation connection, the 4th supporting assembly include the main trunk body rotation connection the 4th back link and
With the 4th front rod of the 4th back link and the secondary trunk body rotation connection, the second back link is parallel with the 4th front rod,
Second front rod is parallel with the 4th back link.
8. series parallel type five degree of freedom welding robot according to any one of claims 1 to 6, it is characterised in that: described three certainly
By degree parallel institution include with the secondary trunk body and the executions head is connect and telescopic extensible member, extensible member is arranged three
It is a.
9. series parallel type five degree of freedom welding robot according to claim 8, it is characterised in that: the extensible member is hydraulic
Cylinder or cylinder.
10. series parallel type five degree of freedom welding robot according to claim 8, it is characterised in that: the Three Degree Of Freedom is simultaneously
Online structure further includes the support rod connecting with the execution head and the secondary trunk body, and three extensible members are distributed in support rod
Around and to be uniformly distributed circumferentially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920463444.7U CN209716838U (en) | 2019-04-08 | 2019-04-08 | Series parallel type five degree of freedom welding robot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920463444.7U CN209716838U (en) | 2019-04-08 | 2019-04-08 | Series parallel type five degree of freedom welding robot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209716838U true CN209716838U (en) | 2019-12-03 |
Family
ID=68690749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920463444.7U Expired - Fee Related CN209716838U (en) | 2019-04-08 | 2019-04-08 | Series parallel type five degree of freedom welding robot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209716838U (en) |
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2019
- 2019-04-08 CN CN201920463444.7U patent/CN209716838U/en not_active Expired - Fee Related
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