Conveying device
A conveying device includes a first drive body, a second drive body and a lifting body for receiving a payload. The drive bodies can be activated independently of each other along a conveying axis or on a conveying plane. A first lifting link is pivotably articulated to the first drive body and a second lifting link is pivotably articulated to the second drive body. The lifting links are functionally connected to the lifting body so that a relative movement of the drive bodies can be converted into a movement of the lifting body along a lifting axis A first guide link is pivotably articulated to the first drive body, a second guide link is pivotably articulated to the second drive body, the guide links are connected to a first guide element, the lifting body has a second guide element, and the guide elements form a linear guide with a guide axis that coincides with the lifting axis.
1. A conveying device ( 10 ), comprising a first drive body ( 12 ), a second drive body ( 14 ) and a lifting body ( 42 ) for receiving a payload, wherein the drive bodies ( 12 , 14 ) can be activated independently of each other along a conveying axis ( 16 ) or on a conveying plane ( 18 ),
wherein a first lifting link ( 24 ) is pivotably articulated to the first drive body ( 12 ) and a second lifting link ( 28 ) is pivotably articulated to the second drive body ( 14 ),
wherein the lifting links ( 24 , 28 ) are functionally connected to the lifting body ( 42 ) so that a relative movement of the drive bodies ( 12 , 14 ) can be converted into a movement of the lifting body ( 42 ) along a lifting axis ( 52 ),
wherein a first guide link ( 26 ) is pivotably articulated to the first drive body ( 12 ), a second guide link ( 30 ) is pivotably articulated to the second drive body ( 14 ), the guide links ( 26 , 30 ) are connected to a first guide element ( 56 ), the lifting body ( 42 ) has a second guide element ( 58 ) that is connected to the lifting links ( 24 , 26 ), and the guide elements ( 56 , 58 ) form a linear guide ( 60 ) with a guide axis ( 54 ) which coincides with the lifting axis ( 52 ), and
wherein there is a single, slidable connection between the first guide element ( 56 ) and the second guide element ( 58 ).
2. The conveying device ( 10 ) according to claim 1 , wherein the lifting axis ( 52 ) is oriented perpendicularly to the conveying axis ( 16 ) or the conveying plane ( 18 ).
3. The conveying device ( 10 ) according to claim 1 , wherein the first guide element ( 56 ) is formed by a sleeve ( 50 ) or a rail.
4. The conveying device ( 10 ) according to claim 1 , wherein the second guide element ( 58 ) is formed by a pin ( 38 ) or a carriage.
5. The conveying device ( 10 ) according to claim 1 , wherein the guide links ( 26 , 30 ) are longer than the lifting links ( 24 , 28 ).
6. The conveying device ( 10 ) according to any claim 1 , wherein the lifting links ( 24 , 28 ) are of equal length and/or the guide links ( 26 , 30 ) are of equal length.
7. The conveying device ( 10 ) according to claim 1 , wherein the first lifting link ( 24 ) and the first guide link ( 26 ) on the first drive body ( 12 ) can be swiveled about a common first pivot shaft ( 20 ) and/or the second lifting link ( 28 ) and the second guide link ( 30 ) on the second drive body ( 14 ) can be swiveled about a common second pivot shaft ( 22 ).
8. The conveying device ( 10 ) according to claim 7 , wherein the first drive body ( 12 ) has a first rotary bearing ( 92 ) with a first axis ( 96 ) of rotation parallel to the lifting axis ( 52 ), and the first pivot shaft ( 20 ) is mounted so as to be rotatable about the first axis ( 96 ) of rotation, and/or the second drive body ( 14 ) has a second rotary bearing ( 94 ) with a second axis ( 98 ) of rotation parallel to the lifting axis ( 52 ), and the second pivot shaft ( 22 ) is mounted so as to be rotatable about the second axis ( 98 ) of rotation.
9. The conveying device ( 10 ) according to claim 1 , wherein the lifting links ( 24 , 28 ), at respective ends thereof which are at a distance from the drive bodies ( 12 , 14 ), are articulated to lifting body pivot bearings ( 32 , 34 ) which are arranged at mutually identical first distances ( 62 ) from the lifting axis ( 52 ), and/or the guide links ( 26 , 30 ), at respective ends thereof which are at a distance from the drive bodies ( 12 , 14 ), are articulated to guide pivot bearings ( 46 , 48 ) which are arranged at mutually identical second distances ( 64 ) from the guide axis ( 54 ).
10. The conveying device ( 10 ) according to claim 9 , wherein the first distances ( 62 ) and the second distances ( 64 ) are identical.
11. The conveying device ( 10 ) according to claim 1 , wherein the lifting body ( 42 ) has a work region ( 40 ) and a gripping device ( 72 ), and the second guide element ( 58 ) and the work region ( 40 ) are connected to each other via an additional gear mechanism ( 70 ) which enables the second guide element ( 58 ) to move relative to the work region ( 40 ) along the lifting axis ( 52 ) over an actuation stroke ( 78 ), wherein the gripping device ( 72 ) can be transferred from an open grip position to a closed grip position by the actuation stroke ( 78 ).
12. The conveying device ( 10 ) according to claim 11 , wherein a locking mechanism ( 80 ) is provided, which operates between at least one of the guide links ( 26 , 30 ) and an arm ( 84 ) of the work region ( 40 ) and blocks a lifting movement of the work region ( 40 ) until the actuation stroke ( 78 ) is completed.
13. The conveying device ( 10 ) according to claim 12 , wherein the locking mechanism ( 80 ) comprises at least one locking finger ( 86 ) which is pivotably articulated to one of the guide links ( 26 , 30 ) and operates, at least during the actuation stroke ( 78 ), between the arm ( 84 ) of the work region ( 40 ) and a crosspiece ( 36 ) connected to the second guide element ( 58 ).