CN111169982A - Variable-pitch mechanism - Google Patents
Variable-pitch mechanism Download PDFInfo
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- CN111169982A CN111169982A CN201911426124.5A CN201911426124A CN111169982A CN 111169982 A CN111169982 A CN 111169982A CN 201911426124 A CN201911426124 A CN 201911426124A CN 111169982 A CN111169982 A CN 111169982A
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- frame
- spacing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
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Abstract
The invention discloses a variable-spacing mechanism which comprises a frame, and a linear driver, a driving plate, sliding seats, a connecting rod and a plurality of suction nozzles which are arranged on the frame, wherein at least two opposite sides of the frame are respectively provided with a driving plate in a sliding manner, the two opposite driving plates on the two opposite sides are oppositely provided with a plurality of limiting grooves in a pairwise manner, the side of each limiting groove is provided with a sliding seat in a sliding manner, an outer convex part of each sliding seat is clamped in the corresponding limiting groove in a sliding manner, a connecting rod is connected between every two opposite sliding seats, at least one suction nozzle is connected onto each connecting rod in a penetrating manner, and the linear driver can drive the two opposite driving plates to synchronously slide relative to the frame, so that the two opposite sliding seats are driven by the corresponding limiting grooves to synchronously slide on the frame, and the spacing of the suction nozzles between the connecting rods is changed.
Description
Technical Field
The invention relates to the field of machining, in particular to a variable-pitch mechanism capable of automatically adjusting product pitch.
Background
In order to meet the requirements of high-speed development and instantaneous market change, the production cycle and the updating cycle of various products are shortened more and more, the requirements on automatic equipment and production lines for producing and manufacturing the products are higher and higher, and particularly, the products or components thereof are often transferred at different equipment and different stations in the production process so as to finish corresponding assembly operation.
At present, when all products at one carrying disc or one station are conveyed to another carrying disc or another station in a plurality of automatic devices and production lines, a manipulator is mostly adopted to connect suction heads or clamping jaws for realization, but the number of the suction heads or the clamping jaws which are generally connected is small, only a small amount of products can be transferred at one time, all the products can be transferred in multiple times, and the efficiency is relatively low. Although some transfer devices improve the number of single transportation by arranging a plurality of suction heads, the distance between the plurality of suction heads is generally fixed, when the distance and the height of the placing positions on two carrying trays or stations before and after transfer are changed, the existing transfer devices cannot effectively realize transfer operation, although the problem can be solved by additionally arranging a plurality of transfer devices, the arrangement of the plurality of transfer devices increases the volume, so that the structure of the whole equipment is relatively complex and the manufacturing cost is increased.
Therefore, there is a need for a pitch varying apparatus capable of automatically adjusting the pitch, having a simple structure and high efficiency, to overcome the above problems.
Disclosure of Invention
The invention aims to provide a variable-pitch device which can realize automatic pitch adjustment and has simple structure, high efficiency and strong adaptability.
In order to achieve the above object, the present invention discloses a variable pitch mechanism, which comprises a frame, and a linear actuator, a driving plate, a sliding seat, a connecting rod and a plurality of suction nozzles, which are arranged on the frame, wherein at least two opposite sides of the frame are respectively provided with the driving plate in a sliding manner, two opposite sides of the frame are provided with a plurality of limiting grooves in a pairwise opposite manner, the side of each limiting groove is provided with the sliding seat in a sliding manner, an outer convex part of the sliding seat is slidably clamped in the corresponding limiting groove, the connecting rod is connected between each two opposite sliding seats, each connecting rod is connected with at least one suction nozzle in a penetrating manner, the linear actuator can drive the two opposite sides of the frame to synchronously slide, so that the sliding seats on the two opposite sides of the driving plate are driven by the corresponding limiting grooves to synchronously slide on the frame, thereby changing the spacing of the suction nozzles between the connecting bars.
Preferably, the limiting groove is an inclined groove, a vertical groove or an arc-shaped groove.
Preferably, the spacing grooves include a first spacing end and a second spacing end with different heights, and the spacing between the first spacing ends or/and the spacing between the second spacing ends of the plurality of spacing grooves may not be equal.
Preferably, the frame is provided with a guide rail, the guide rail is arranged along the transverse width direction or the longitudinal direction of the frame, and the sliding seat is slidably arranged on the guide rail.
Preferably, the guide rail is a linear guide rail or a spiral guide rail.
Preferably, the driving plate and the sliding seat can slide along two perpendicular directions.
Preferably, the frame is further provided with a guide rod and a guide sleeve slidably sleeved on the guide rod, the frame is square, the upper side frame and the lower side frame of the frame are connected through the guide rod arranged at four top corners of the upper side frame and the lower side frame, and the driving plate is connected to the guide sleeve and can slide relative to the guide rod.
Preferably, the left and right opposite sides or the front and rear opposite sides of the frame are respectively provided with one driving plate, two ends of each driving plate are connected to the two guide sleeves on the corresponding side, and the connecting rods are arranged in a row or a column.
Preferably, the left and right opposite sides and the front and rear opposite sides of the frame are arranged with four driving plates in pairs, two driving plates on adjacent sides are connected to different connecting surfaces of the guide sleeve at corresponding vertex angles, and the connecting rods on adjacent sides are arranged in a staggered manner.
Preferably, the variable-pitch mechanism further comprises an L-shaped mounting base, the suction nozzle is mounted at the short side of the mounting base, the long side of the mounting base is provided with a first through hole and a second through hole which are different in height and perpendicular in the cross-over direction, and the connecting rods on the adjacent sides are correspondingly and alternately arranged in the first through hole and the second through hole in a cross-over manner.
Compared with the prior art, the variable-spacing mechanism disclosed by the invention comprises a frame, and a linear driver, a driving plate, sliding seats, connecting rods and a plurality of suction nozzles which are arranged on the frame, wherein at least two opposite sides of the frame are respectively provided with the driving plate in a sliding manner, a plurality of limiting grooves are arranged on the two driving plates in a pairwise opposite manner, the sliding seats and the limiting grooves are arranged in a one-to-one correspondence manner, the outer convex parts of the sliding seats are slidably clamped in the corresponding limiting grooves, the connecting rods are connected between the sliding seats on the two sides in a one-to-one correspondence manner, and each connecting rod is connected with at least one suction nozzle in a penetrating manner. The variable-spacing mechanism is simple in structure, can adjust the spacing of the suction nozzles at one time so as to take and place products conveniently, is high in efficiency, can simply and conveniently adjust the spacing in multiple rows, multiple columns or two directions, is high in adaptability and effectively reduces production cost.
Drawings
Fig. 1 is an angular perspective view of a variable pitch mechanism according to a first embodiment of the present invention.
Fig. 2 is a schematic perspective view of another angle of the first embodiment of the variable pitch mechanism of the present invention.
Fig. 3 is a side view of a first embodiment of the variable pitch mechanism of the present invention.
FIG. 4 is a side view of a first embodiment of the variable spacing mechanism of the present invention with portions of the assembly hidden.
FIG. 5 is a top view of a first embodiment of the variable spacing mechanism of the present invention with portions of the assembly hidden.
FIG. 6 is a schematic view of the drive plate of the variable pitch mechanism of the present invention.
Fig. 7 is an angular perspective view of a pitch mechanism according to a second embodiment of the present invention.
FIG. 8 is a side view of a second embodiment of the variable spacing mechanism of the present invention with portions of the assembly hidden.
FIG. 9 is a schematic view of a portion of the components of a second embodiment of the variable pitch mechanism of the present invention.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1 to 9, the present invention discloses a variable pitch mechanism 100 for adjusting the pitch between a plurality of pick-and-place members to achieve efficient pick-and-place operation of a plurality of products between positions with different pitches or different numbers. In this application, the pick-and-place member is a suction nozzle. The variable-pitch mechanism 100 of the invention specifically comprises a frame 10, a linear driver 20, a driving plate 30, sliding seats 40, a connecting rod 50 and a plurality of suction nozzles 60, wherein the linear driver 20, the driving plate 30, the sliding seats 40, the connecting rod 50 and the suction nozzles 60 are arranged on the frame 10, at least two opposite sides of the frame 10 are respectively provided with the driving plate 30 in a sliding manner, a plurality of limiting grooves 31 are arranged on the two opposite side driving plates 30 in a pairwise opposite manner, a sliding seat 40 is arranged at the side of each limiting groove 31 in a sliding manner, an outer convex part 41 of the sliding seat 40 is slidably clamped in the corresponding limiting groove 31, a connecting rod 50 is connected between each two opposite sliding seats 40, each connecting rod 50 is connected with at least one suction nozzle 60 in a penetrating manner, the shape of each limiting groove 31 corresponds to the direction required to be adjusted by the suction nozzle 60, the linear driver 20 can synchronously slide the two opposite side driving plates 30 relative to the frame 10, so that the two opposite side sliding, thereby changing the interval of the suction nozzles 60 between the plurality of connecting bars 50. The male portion 41 is embodied as a follower coupled to the sliding seat 40.
Referring to fig. 1 to 6, the structure of the first embodiment of the pitch-varying mechanism 100 of the present invention will be described in detail:
in this embodiment, the frame 10 is square, and includes an upper frame 11 and a lower frame 12 which are parallel and spaced apart from each other, the upper frame 11 and the lower frame 12 are connected by a guide rod 13 disposed at four vertex angles of the upper frame and the lower frame, and a guide sleeve 14 which can slide relative to the guide rod 13 is sleeved on the guide rod 13. A driving plate 30 is slidably disposed on each of the left and right opposite sides or the front and rear opposite sides of the frame 10, the driving plate 30 is located between the upper side frame 11 and the lower side frame 12 in the vertical direction of the frame 10, two ends of the driving plate 30 on each side are connected to the two guide sleeves 14 on the corresponding sides of the upper side frame 11 and the lower side frame 12, at this time, the plurality of connecting rods 50 are arranged in a row or a column, and a plurality of suction nozzles 60 are connected to each connecting rod 50 in a penetrating manner. The linear actuator 20 is disposed on the upper frame 11 and can drive the two driving plates 30 to slide relative to the guide rod 13 via the guide sleeve 14, so that the driving plates 30 and the sliding seat 40 can slide in two perpendicular directions. That is, the driving plate 30 can slide up and down along the vertical direction of the frame 10, and the sliding seat 40 can slide left and right along the transverse width direction of the frame 10 or front and back along the longitudinal direction, so that the adjustment of the transverse spacing or the longitudinal spacing between the plurality of suction nozzles 60 can be realized.
Specifically, the number of the linear actuators 20 is two, and the two linear actuators 20 are connected to the two driving plates 30 on the left and right opposite sides in a one-to-one correspondence manner, so that the two driving members can slide smoothly, and the adjustment of the distance between the suction nozzles 60 is smoother. More specifically, the linear actuator 20 is fixed to the upper frame 11 by a mounting plate 15 provided at a side end of the upper frame 11, and an output shaft 21 of the linear actuator 20 is connected to a connecting plate 32 provided at an upper side end of the drive plate 30, so that the drive plate 30 can be linearly moved up and down by the linear actuator 20.
Specifically, the variable pitch mechanism 100 further includes a mounting base 70, the mounting base 70 is L-shaped, the suction nozzle 60 is mounted at the short edge 71 of the mounting base 70, and the upper end of the long edge 72 of the mounting base 70 is provided with a first through hole 721, and the connecting rod 60 is penetrated into the mounting bases 70 through the first through hole 721, so as to drive the suction nozzle 60 to move.
Specifically, in order to facilitate the sliding of the sliding seat 40, the frame 10 is further provided with a guide rail 16, the guide rail 16 is disposed on the lower frame 12 along the transverse width direction or the longitudinal direction of the frame 10, and the sliding seat 40 is slidably disposed on the guide rail 16. The guide rail 16 is a linear guide rail or a spiral guide rail, and the limit groove 31 is a chute or an arc groove. The position-limiting groove 31 includes a first position-limiting end 311 and a second position-limiting end 312, and the spacing between the first position-limiting ends 311 and/or the spacing between the second position-limiting ends 312 of the plurality of position-limiting grooves 31 may not be equal.
When the guide rail 16 is a linear guide rail, the limiting groove 31 includes a chute and a vertical groove, and the distance between the first limiting ends 311 is unequal to the distance between the second limiting ends 312, as shown in fig. 6, the two chutes are symmetrically arranged with one vertical groove as the center, or the placing angles of the chutes on the driving plate 40 are different, as two chutes are symmetrically placed in a high-low position, the distance between the sliding seats 40 synchronously sliding on the guide rail 16 can be changed equidistantly, so that the variable pitch mechanism 100 of the present invention can realize unidirectional and equidistant adjustment between the plurality of suction nozzles 60.
When the guide rail 16 is a spiral guide rail and the limiting groove 31 is an arc-shaped groove or a chute, the distance between the first limiting ends 311 is equal to the distance between the second limiting ends 312, so that the sliding seats 40 sliding synchronously on the guide rail 16 can change the transverse or longitudinal distances of the plurality of suction nozzles 60, and can adjust the overall height position of the suction nozzles 60.
Referring to fig. 7 to 9, the structure of the second embodiment of the pitch varying mechanism 100 of the present invention will be described in detail:
the present embodiment is different from the first embodiment mainly in that: the four driving plates 30 are arranged on the left and right opposite sides and the front and rear opposite sides of the frame 10 in a pairwise opposite manner, the two driving plates 30 on the adjacent sides are connected to different connecting surfaces of the guide sleeves 14 at the corresponding vertex angles, the connecting rods 60 on the opposite sides are arranged in a row or a column, and the connecting rods 50 on the adjacent sides are arranged in a staggered manner. Specifically, the guide sleeve 14 is a rectangular block, a through hole is formed in the center of the rectangular block, and two outer walls of the rectangular block form a connection surface 141 and a connection surface 142 for connecting two adjacent driving plates 30. The mounting base 70 further has a second through hole 722 at the upper end of the long side 72, the height of which is different from that of the first through hole 721, and the first through hole 721 and the second through hole 722 are arranged in a relatively perpendicular direction, so that the connecting rods 60 at the adjacent sides correspondingly pass through the first through hole 721 and the second through hole 722 in a staggered manner.
When the two linear drivers 20 drive the two driving plates 30 connected thereto to move linearly up and down, the driving plates 30 connected to the other two sides of the guide sleeve 14 are driven to move synchronously, so that the outward protruding portion 41 of the sliding seat 40 moves along with the outward protruding portion from the first limiting end 311 to the second limiting end 312 of the corresponding limiting groove 31, and the suction cup 60 is opened or contracted in the transverse width direction and the longitudinal direction of the frame 10 under the action of the connecting rod 60 penetrating the suction cup 60 in the two directions, thereby adjusting the distance between the suction cup 60 in the two directions.
Compared with the prior art, the variable-pitch mechanism 100 disclosed by the invention comprises a frame 10, a linear driver 20, a driving plate 30, sliding seats 40, connecting rods 50 and a plurality of suction nozzles 60, wherein the linear driver 20, the driving plate 30, the sliding seats 40, the connecting rods 50 and the suction nozzles 60 are arranged on the frame 10, the driving plate 30 is respectively arranged on at least two opposite sides of the frame 10 in a sliding manner, a plurality of limiting grooves 31 are arranged on the two driving plates 30 in a pairwise opposite manner, the sliding seats 40 and the limiting grooves 31 are arranged in a one-to-one correspondence manner, the convex parts 41 of the sliding seats 40 are slidably clamped in the corresponding limiting grooves 31, the connecting rods 60 are connected between the sliding seats 40 on the two sides in a one-to-one correspondence manner, each connecting rod 60 is connected with at least one suction nozzle 60 in a penetrating manner, the shape of the limiting grooves 31 corresponds to the required adjusting direction of the suction nozzles 60, when the linear driver 20 drives the driving plates 30 on the two opposite sides to synchronously, so that the interval between the suction nozzles 60 among the plurality of connecting bars 60 can be changed. The variable-pitch mechanism 100 is simple in structure, can adjust the pitch of the suction nozzles 60 at one time so as to take and place products, is high in efficiency, can simply and conveniently adjust the equidistant or unequal pitch of multiple rows, multiple columns or two directions, is high in adaptability and effectively reduces production cost.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.
Claims (10)
1. A variable-spacing mechanism is characterized by comprising a frame, and a linear driver, a driving plate, sliding seats, a connecting rod and a plurality of suction nozzles which are arranged on the frame, wherein at least two opposite sides of the frame are respectively provided with the driving plate in a sliding manner, the two opposite sides of the frame are provided with a plurality of limiting grooves in a pairwise opposite manner, the side of each limiting groove is provided with the sliding seat in a sliding manner, an outer convex part of each sliding seat is slidably clamped in the corresponding limiting groove, the connecting rod is connected between every two opposite sliding seats, each connecting rod is connected with at least one suction nozzle in a penetrating manner, the linear driver can drive the two opposite sides of the driving plate to synchronously slide relative to the frame, so that the sliding seats on the two opposite sides are driven by the corresponding limiting grooves to synchronously slide on the frame, thereby changing the spacing of the suction nozzles between the connecting bars.
2. The variable pitch mechanism of claim 1 wherein said limiting groove is a skewed, vertical or arcuate groove.
3. The variable spacing mechanism according to claim 1, wherein said spacing grooves comprise a first spacing end and a second spacing end having different heights, and the spacing between said first spacing ends or/and the spacing between said second spacing ends of a plurality of said spacing grooves may be unequal.
4. The variable pitch mechanism of claim 1 wherein said frame has a track disposed along a width or length of said frame, said sliding seat slidably disposed on said track.
5. The variable pitch mechanism of claim 4 wherein said guide track is a linear guide track or a helical guide track.
6. The variable pitch mechanism of claim 1 wherein said drive plate and said slide block are slidable in two orthogonal directions.
7. The variable pitch mechanism of claim 1, wherein said frame further comprises a guide rod and a guide sleeve slidably sleeved on said guide rod, said frame is square, said upper side frame and said lower side frame of said frame are connected by said guide rod at four top corners of said upper side frame and said lower side frame, said driving plate is connected to said guide sleeve and can slide relative to said guide rod.
8. The variable pitch mechanism of claim 7, wherein said frame has a pair of said drive plates disposed on opposite sides of said frame, said drive plates having opposite ends connected to said guide sleeves on opposite sides of said frame, said connecting rods being arranged in a row or a column.
9. The variable pitch mechanism as claimed in claim 7, wherein four of said drive plates are disposed on opposite sides of said frame, said opposite sides being opposite to each other, said drive plates being connected to different connection surfaces of said guide bush at corresponding corners, said connecting rods being arranged in a staggered pattern.
10. The pitch-varying mechanism as claimed in claim 9, further comprising an L-shaped mounting seat, wherein the suction nozzle is mounted at a short side of the mounting seat, the mounting seat has a first through hole and a second through hole with different heights and perpendicular cross-connecting directions on a long side, and the connecting rods of adjacent sides are correspondingly and alternately arranged in the first through hole and the second through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911426124.5A CN111169982A (en) | 2019-12-31 | 2019-12-31 | Variable-pitch mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911426124.5A CN111169982A (en) | 2019-12-31 | 2019-12-31 | Variable-pitch mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111169982A true CN111169982A (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911426124.5A Pending CN111169982A (en) | 2019-12-31 | 2019-12-31 | Variable-pitch mechanism |
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| Country | Link |
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| CN (1) | CN111169982A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111673719A (en) * | 2020-07-06 | 2020-09-18 | 杭州科泽尔工业设计有限公司 | Manipulator for industrial production line and working method thereof |
| CN113353622A (en) * | 2021-04-30 | 2021-09-07 | 武汉华工激光工程有限责任公司 | Breadth-adjustable array manipulator |
-
2019
- 2019-12-31 CN CN201911426124.5A patent/CN111169982A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111673719A (en) * | 2020-07-06 | 2020-09-18 | 杭州科泽尔工业设计有限公司 | Manipulator for industrial production line and working method thereof |
| CN113353622A (en) * | 2021-04-30 | 2021-09-07 | 武汉华工激光工程有限责任公司 | Breadth-adjustable array manipulator |
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