CN116119313B - Efficient circulating lifting shuttle machine - Google Patents
Efficient circulating lifting shuttle machine Download PDFInfo
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- CN116119313B CN116119313B CN202310308488.3A CN202310308488A CN116119313B CN 116119313 B CN116119313 B CN 116119313B CN 202310308488 A CN202310308488 A CN 202310308488A CN 116119313 B CN116119313 B CN 116119313B
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- 230000007246 mechanism Effects 0.000 claims abstract description 96
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- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000003028 elevating effect Effects 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims 7
- 238000012545 processing Methods 0.000 abstract description 8
- 238000003466 welding Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 230000002829 reductive effect Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The application provides a high-efficiency circulating lifting shuttle machine which comprises a plurality of upper stations, a plurality of lower stations, left lifting mechanisms and right lifting mechanisms, wherein the upper stations are arranged in the transverse direction in sequence, the lower stations are arranged below the upper stations in sequence, the left sides of the upper stations and the lower stations are provided with the left lifting mechanisms, the right sides of the upper stations and the lower stations are provided with the right lifting mechanisms, and the upper stations and the lower stations are respectively provided with a Pallet trolley for placing a workpiece and a transverse driving mechanism for driving the Pallet trolley to move among different stations; the upper station, the left lifting mechanism and the right lifting mechanism are respectively provided with a positioning mechanism for positioning the Pallet trolley and a guiding mechanism for transversely guiding the Pallet trolley; the right lifting mechanism is used for moving the empty Pallet trolley for completing workpiece processing from an upper station to a lower station; the left lifting mechanism is used for transferring the empty Pallet trolley on the lower station to the upper station from the lower station.
Description
Technical Field
The application relates to the field of automobile assembly and manufacture, in particular to a high-efficiency circulating lifting shuttle machine.
Background
The shuttle machine is widely applied to a white car body welding assembly, a sub-assembly automatic welding production line, the automatic welding assembly has the characteristics of compact structure, high beat, high precision and the like, a Pallet trolley with a positioning function (namely a clamp trolley for bearing different car types) can realize flexible switching of multiple car types and efficient circulating production functions in a line, the shuttle machine in the prior art often has an upper production line and a lower production line, the upper production line is used for carrying out tooling or welding on workpieces on the Pallet trolley, the processed workpieces are grabbed by a mechanical arm, then the Pallet trolley of different car types is switched, the empty Pallet trolley moves back to the lower production line through a lifting mechanism and is lifted up to an initial station of the upper production line through the lifting mechanism, the mechanical arm then places the next workpiece on the Pallet trolley and sequentially passes through each station of the upper production line to complete tooling or welding of the workpieces, the Pallet trolley in the prior art sequentially passes through a plurality of assembly stations through conveying wheels on two sides of the processing line, and the Pallet trolley is suitable for carrying out the work in a mode which the work is light in weight and has a low self-locking precision or has a low self-locking function.
Disclosure of Invention
The application aims to solve the technical problems that a shuttle machine in the prior art is not suitable for assembly or welding of heavy-load workpieces such as a vehicle body and a bottom plate, and is low in positioning precision and affects the quality of a tool or welding.
The technical scheme adopted for solving the technical problems is as follows: the high-efficiency circulating lifting shuttle machine comprises a plurality of upper stations, a plurality of lower stations, left lifting mechanisms and right lifting mechanisms, wherein the upper stations are arranged in the transverse direction in sequence, the lower stations are arranged below the upper stations in sequence, the left sides of the upper stations and the lower stations are provided with the left lifting mechanisms, and the right sides of the upper stations and the lower stations are respectively provided with a Pallet trolley for placing a workpiece and a transverse driving mechanism for driving the Pallet trolley to move among different stations; the upper station, the left lifting mechanism and the right lifting mechanism are respectively provided with a positioning mechanism for positioning the Pallet trolley and a guiding mechanism for transversely guiding the Pallet trolley; the right lifting mechanism is used for moving the empty Pallet trolley for completing workpiece processing from an upper station to a lower station; the left lifting mechanism is used for transferring the empty Pallet trolley on the lower station to the upper station from the lower station.
Further: the left lifting mechanism and the right lifting mechanism comprise brackets for placing the Pallet trolley, an up-down driving device for driving the brackets to move up and down, an upper limiting device for keeping the brackets at the same height as the upper station, a lower limiting device for keeping the brackets at the same height as the lower station, and a transverse driving mechanism for driving the Pallet trolley to move transversely.
Further: the transverse driving mechanism comprises two driving units and a friction rod which is arranged between the two driving units in a penetrating way and fixedly connected with the Pallet trolley, the driving units comprise a first push rod and a second push rod which is stacked with the first push rod, the middle parts of the first push rod and the second push rod are provided with hinge shafts, and the first push rod and the second push rod can rotate along the hinge shafts under the driving of a driving cylinder; one end of the first push rod is provided with a main friction wheel, and the other end of the first push rod is connected with a piston rod of the driving cylinder; one end of the second push rod is provided with a secondary friction wheel, and the other end of the second push rod is connected with the body of the driving cylinder; the drive cylinder is contracted to bring the master friction wheel and the slave friction wheel closer to each other so as to press against the friction lever.
Further: the positioning mechanism comprises an overtravel preventing device, a clamping device and a pushing device, wherein the overtravel preventing device, the clamping device and the pushing device are used for positioning the Pallet trolley; the over-travel prevention device comprises an over-travel prevention cylinder, a connecting rod device and a stop block, wherein the over-travel prevention cylinder is arranged below the Pallet trolley, and the over-travel prevention cylinder can drive the connecting rod device to abut the stop block on the side wall of the Pallet trolley.
Further: the connecting rod device comprises a vertical plate, wherein an L-shaped first connecting rod is hinged to the vertical plate through a first pin shaft, the side wall above the first connecting rod is provided with a stop block, one side, which is positioned below the first pin shaft and is close to the over-travel prevention cylinder, of the vertical plate is hinged to a second connecting rod through a second pin shaft, the other end of the second connecting rod is hinged to a third connecting rod, the other end of the third connecting rod is hinged to the lower end of the first connecting rod, a piston rod of the over-travel prevention cylinder is provided with a telescopic block, and the telescopic block is hinged to the middle part of the first connecting rod; the over-travel-preventing cylinder stretches out to drive the second connecting rod to rotate upwards around the second pin shaft and push the third connecting rod to rotate upwards, and the third connecting rod can push the first connecting rod to rotate upwards around the first pin shaft so as to enable the stop block to be abutted to the side wall of the Pallet trolley.
Further: the clamping device is provided with two groups and comprises two clamping cylinders, the clamping cylinders are provided with overturning blocks, the Pallet trolley is provided with clamping blocks, and the two clamping cylinders can respectively drive the overturning blocks to clamp the clamping blocks from two sides; the pushing device comprises a first pushing component and a second pushing component which is opposite to the first pushing component; the first pushing component comprises a pushing cylinder and an abutting block arranged on the Pallet trolley, a piston rod of the pushing cylinder is provided with a pushing block, and the pushing block can be tightly abutted against the abutting block under the driving of the pushing cylinder; the second pushing component comprises a pushing block, a pressing block which is arranged on the Pallet trolley and corresponds to the pushing block, and the pressing block can be pushed against the pushing block under the driving of the pushing cylinder.
Further: the upper and lower driving device comprises four upright posts, wherein racks are vertically arranged on the upright posts, movable blocks are arranged on the racks in a penetrating manner, a transmission rod meshed with the racks is connected between two adjacent movable blocks, and a lifting motor is arranged at one end of the transmission rod; the movable block is fixedly connected with the bracket, and the lifting motor can drive the transmission rod to rotate so as to drive the bracket to move up and down along the rack.
Further: the upper limiting device is arranged on an upper locating pin above the upright, the lower limiting device is arranged on a lower locating pin below the upright, a limiting cylinder is arranged on the bracket, a limiting plate is arranged on a piston rod of the limiting cylinder, and a pin hole for the upper locating pin and the lower locating pin to penetrate is formed in the limiting plate.
Further: the transverse driving mechanism further comprises a driving motor and a coupler, one end of the coupler is connected with the main friction wheel, the other end of the coupler is connected with the driving motor, and the driving motor can drive the coupler to rotate so as to drive the main friction wheel to rotate and further drive the friction rod to move.
Further: the guide mechanism comprises a plurality of groups of guide rollers which are transversely arranged and two guide rods which are parallel to the friction rods, and the bottom end of the Pallet trolley is provided with rollers which can be arranged on the guide rods in a rolling way.
The application has the beneficial effects that the friction rod moves to drive the Pallet trolley to move between different positions, the friction rod is clamped by the main friction wheel and the auxiliary friction wheel and is driven to move by friction force, so that the transmission power is increased, and meanwhile, the transmission speed of the Pallet trolley is increased, so that the application is suitable for welding or assembling automobiles with larger mass; the guide mechanism can enable the Pallet trolley to travel according to a given route to prevent deviation, and meanwhile, the resistance in the travelling process of the Pallet trolley can be reduced, so that the Pallet trolley can run more stably; the device for preventing the over travel of the Pallet trolley can prevent the over travel of the Pallet trolley, positions the front side and the rear side of the travelling direction of the Pallet trolley through the clamping device, positions the left side and the right side of the travelling direction of the Pallet trolley through the pushing device, positions the Pallet trolley through a plurality of dimensions, so that the positioning of the Pallet trolley is more accurate, the tool or welding precision of a workpiece is improved, the tool or welding quality of the workpiece is improved, the left lifting mechanism and the right lifting mechanism adopt the synchronous transmission of the transmission rod, the stable lifting of the bracket in the running process is ensured, the upper limiting device and the lower limiting device can enable the bracket and the upright post to be firmly connected together, and therefore, the Pallet trolley or the workpiece can not shake in the switching process.
Drawings
The application will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of the structure of the present application;
FIG. 2 is a schematic view of the structure of the upper station;
FIG. 3 is a schematic view of the structure of the lower station;
FIG. 4 is a schematic view of the structure of the left lift mechanism;
FIG. 5 is a schematic view of the right lift mechanism;
FIG. 6 is a schematic structural view of a lateral drive mechanism;
FIG. 7 is a schematic view of the lateral drive mechanism with the friction lever removed;
FIG. 8 is a schematic view of the structure of the over travel prevention device;
FIG. 9 is another schematic structural view of the over travel prevention device;
FIG. 10 is an enlarged partial view of portion A of FIG. 4;
FIG. 11 is an enlarged partial view of portion B of FIG. 5;
fig. 12 is a schematic view of the structure of the guide roller.
1, upper station, 2, lower station, 3, left lifting mechanism, 4, right lifting mechanism, 5, pallet trolley, 6, bracket, 7, upper limit device, 8, lower limit device, 9, friction lever, 10, first push rod, 11, second push rod, 12, hinge shaft, 13, driving cylinder, 14, main friction wheel, 15, secondary friction wheel, 16, over travel prevention device, 17, over travel prevention cylinder, 18, stopper, 19, vertical plate, 20, first pin, 21, first connecting rod, 22, second pin, 23, second connecting rod, 24, third connecting rod, 25, telescopic block, 26, clamping cylinder, 27, turnover block, 28, clamping block, 29, pushing cylinder, 30, abutting block, 31, pushing block, 32, pushing block, 33, pressing block, 34, upright post, 35, rack, 36, movable block, 37, transmission rod, 38, lifting motor, 39, limiting cylinder, 40, limiting plate, 41, driving motor, 42, coupling, 43, guide roller, 44, 45, guide roller.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application. On the contrary, the embodiments of the application include all alternatives, modifications and equivalents as may be included within the spirit and scope of the appended claims.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
As shown in fig. 1 to 3, the application provides a high-efficiency circulating lifting shuttle machine, which comprises a plurality of upper working stations 1, a plurality of lower working stations 2, left lifting mechanisms 3, right lifting mechanisms 4, and transverse driving mechanisms, wherein the upper working stations 1 are arranged in sequence along the transverse direction, the lower working stations 2 are arranged below the upper working stations 1 in sequence, the left sides of the upper working stations 1 and the lower working stations 2 are provided with left lifting mechanisms 3, the right sides of the upper working stations 1 and the lower working stations 2 are provided with right lifting mechanisms 4, and the upper working stations 1 and the lower working stations 2 are respectively provided with a Pallet trolley 5 for placing a workpiece and the transverse driving mechanisms for driving the Pallet trolley 5 to move between different working stations; the upper station 1, the left lifting mechanism 3 and the right lifting mechanism 4 are respectively provided with a positioning mechanism for positioning the Pallet trolley 5 and a guiding mechanism for transversely guiding the Pallet trolley 5; the right lifting mechanism 4 is used for transferring the empty Pallet trolley 5 for completing the workpiece processing from the upper station 1 to the lower station 2; the left lifting mechanism 3 is used for transferring the empty Pallet trolley 5 on the lower station 2 from the lower station 2 to the upper station 1.
The shuttle machine is widely applied to a welding assembly of a white car body, and is a sub-assembly automatic welding production line, the shuttle machine has the characteristics of compact structure, high beat, high precision and the like, a Pallet trolley 5 with a positioning function is used for bearing clamp trolleys of different car types, the flexible switching of the multiple car types and the production function of efficient circulation in a line can be realized, an upper layer processing line is formed by a plurality of groups of upper stations 1 which are sequentially arranged, a lower layer revolving line is formed by a plurality of groups of lower stations 2 which are sequentially arranged, during working, the Pallet trolley 5 sequentially passes through the upper stations 1 on the upper layer processing line from left to right to complete the tooling or welding of workpieces on the Pallet trolley 5, the processed workpieces are grabbed from the Pallet trolley 5 by a mechanical arm, and then a transverse driving mechanism continuously drives the empty Pallet trolley 5, and the empty Pallet trolley 5 is transferred onto the right lifting mechanism 4 from the rightmost upper station 1, the empty Pallet trolley 5 is lowered to the same height as the lower station 2 by the right lifting mechanism 4, then the empty Pallet trolley 5 is transferred from the right lifting mechanism 4 to the lower station 2, is transferred from the rightmost lower station 2 to the leftmost lower station 2 and is transferred from the leftmost lower station 2 to the left lifting mechanism 3, the empty Pallet trolley 5 is lifted to the same height as the upper station 1 by the left lifting mechanism 3, then a workpiece to be processed is placed on the Pallet trolley 5 by a mechanical arm, and the workpiece is transversely moved from left to right by the transverse driving mechanism to finish the processing procedures of tooling, welding and the like of the workpiece on the upper station 1.
The guide mechanism can guide the transverse application of the Pallet trolley 5 in a walking way, so that the Pallet trolley 5 is prevented from deviating, and meanwhile, the resistance in the running process of the Pallet trolley 5 can be reduced, so that the Pallet trolley 5 can run more stably. The positioning mechanism can accurately position the Pallet trolley 5 in multiple dimensions on the upper station 1, the left lifting mechanism 3 and the right lifting mechanism 4, so that the tooling or welding precision and quality of workpieces are improved, and the trolley is not required to be positioned on the lower station 2 because working procedures such as workpiece welding and the like are not needed, and therefore, the positioning mechanism is not arranged on the lower station 2.
The number of the upper stations 1 and the lower stations 2 can be one to twenty according to the process requirements, the space between the stations is generally 3.5-6 m according to the design length of the workpiece and the stations, the beat of the Pallet trolley 5 in transferring and conveying among the stations can reach 7.5S, and when different vehicle types need to be switched, the Pallet trolley 5 of the vehicle type needing to be produced can be switched on the right lifting mechanism 4.
As shown in fig. 4 to 5, each of the left elevating mechanism 3 and the right elevating mechanism 4 includes a carriage 6 for placing the Pallet carriage 5, an up-and-down driving device for driving the carriage 6 to move up and down, an upper limit device 7 for holding the carriage 6 at the same height as the upper station 1, a lower limit device 8 for holding the carriage 6 at the same height as the lower station 2, and a lateral driving mechanism for driving the Pallet carriage 5 to move laterally.
The precision and stability of the lifting stop position of the Pallet trolley 5 are guaranteed through the upper limiting device 7 and the lower limiting device 8, the transverse driving mechanism on the right lifting mechanism 4 can drive the Pallet trolley 5 to move from the upper station 1 to the right lifting mechanism 4 and from the right lifting mechanism 4 to the lower station 2, and the transverse driving mechanism on the left lifting mechanism 3 can drive the Pallet trolley 5 to move from the lower station 2 to the left lifting mechanism 3 and from the left lifting mechanism 3 to the upper station 1.
As shown in fig. 6 to 7, the transverse driving mechanism comprises two driving units and a friction rod 9 penetrating between the two driving units and fixedly connected with the Pallet trolley 5, the driving units comprise a first push rod 10 and a second push rod 11 overlapped with the first push rod 10, a hinge shaft 12 is arranged in the middle of the first push rod 10 and the second push rod 11, and the first push rod 10 and the second push rod 11 can rotate along the hinge shaft 12 under the driving of a driving cylinder 13; one end of the first push rod 10 is provided with a main friction wheel 14, and the other end of the first push rod 10 is connected with a piston rod of the driving cylinder 13; one end of the second push rod 11 is provided with a secondary friction wheel 15, and the other end of the second push rod 11 is connected with the body of the driving cylinder 13; the retraction of the actuating cylinder 13 brings the master friction wheel 14 and the slave friction wheel 15 closer to each other so as to be pressed against the friction lever 9.
The main friction wheel 14 is driven by the driving cylinder 13 and the friction rod 9 is clamped by the auxiliary friction wheel 15, the two main friction wheels 14 are driven by the driving motor 41 to rotate, so that the friction force drives the Pallet trolley 5 on the friction rod 9 to move, the driving motor 41 is suitable for the condition of large load in automobile assembly processing, the main friction wheels 14 are driven by the driving motor 41 to rotate, the rotating speeds of the two main friction wheels 14 are the same, the friction rod 9 cannot be pulled, stable operation of the friction rod 9 is realized, the friction rod 9 can be driven by the driving motor 41 to move and stop, and the accuracy of subsequent automobile body assembly welding is improved.
As shown in fig. 8 to 12, the positioning mechanism includes an over travel prevention device 16 for positioning the Pallet car 5, a clamping device, and a pushing device; the over travel prevention device 16 comprises an over travel prevention cylinder 17, a connecting rod device and a stop block 18, wherein the over travel prevention cylinder 17 is arranged below the Pallet car 5, and the connecting rod device can be driven by the over travel prevention cylinder 17 to abut the stop block 18 on the side wall of the Pallet car 5.
The over travel prevention device 16 can prevent the Pallet trolley 5 from over travel, so before the Pallet trolley 5 reaches the corresponding station, the over travel prevention cylinder 17 drives the connecting rod device to enable the stop block 18 to be lifted upwards, when the Pallet trolley 5 moves, the stop block 18 can be abutted against the side wall of the Pallet trolley 5, then the clamping device clamps the Pallet trolley 5 from the front side and the rear side of the travelling direction of the Pallet trolley 5, the pushing device pushes the Pallet trolley 5 against the left side and the right side of the travelling direction, the front side, the rear side, the left side and the right side of the Pallet trolley 5 are positioned, and the overall accuracy of X, Y, Z three directions can reach +/-0.1 mm.
The connecting rod device comprises a vertical plate 19, wherein an L-shaped first connecting rod 21 is hinged to the vertical plate 19 through a first pin shaft 20, a stop block 18 is arranged on the side wall above the first connecting rod 21, a second connecting rod 23 is hinged to one side, which is positioned below the first pin shaft 20 and is close to the over travel prevention cylinder 17, of the vertical plate 19 through a second pin shaft 22, a third connecting rod 24 is hinged to the other end of the second connecting rod 23, the other end of the third connecting rod 24 is hinged to the lower end of the first connecting rod 21, a telescopic block 25 is arranged on a piston rod of the over travel prevention cylinder 17, and the telescopic block 25 is hinged to the middle part of the first connecting rod 21; the over travel prevention cylinder 17 extends to drive the second connecting rod 23 to rotate upwards around the second pin shaft 22 and push the third connecting rod 24 to rotate upwards, and the third connecting rod 24 rotates upwards to push the first connecting rod 21 to rotate upwards around the first pin shaft 20 so as to abut the stop block 18 on the side wall of the Pallet trolley 5.
After the workpiece on the Pallet truck 5 is machined, the over travel prevention cylinder 17 is contracted, so that the second connecting rod 23 is driven to move downwards around the second pin 22, the third connecting rod 24 is pulled to move downwards, and the third connecting rod 24 can pull the first connecting rod 21 to move downwards around the first pin 20, so that the stop block 18 is detached from the side wall of the Pallet truck 5.
The clamping device is provided with two groups, the clamping device comprises two clamping air cylinders 26, the clamping air cylinders 26 are provided with overturning blocks 27, the Pallet trolley 5 is provided with clamping blocks 28, and the two clamping air cylinders 26 can respectively drive the overturning blocks 27 to clamp the clamping blocks 28 from two sides; the pushing device comprises a first pushing component and a second pushing component which is opposite to the first pushing component; the first pushing component comprises a pushing cylinder 29 and an abutting block 30 arranged on the Pallet trolley 5, a piston rod of the pushing cylinder 29 is provided with a pushing block 31, and the pushing block 31 can be tightly abutted against the abutting block 30 under the driving of the pushing cylinder 29; the second pushing component comprises a pushing block 32, a pressing block 33 which is arranged on the Pallet trolley 5 and corresponds to the pushing block 32, and the pressing block 33 can be pushed against the pushing block 32 under the driving of the pushing cylinder 29.
The pushing cylinder 29 can tightly push the pushing block 31 on the abutting block 30 and push the Pallet trolley 5 to one side far away from the pushing cylinder 29, so that the pressing block 33 is tightly pushed on the pushing block 32, and accurate positioning is formed on the left side and the right side of the travelling direction of the Pallet trolley 5.
The up-down driving device comprises four upright posts 34, wherein racks 35 are vertically arranged on the upright posts 34, movable blocks 36 are arranged on the racks 35 in a penetrating manner, a transmission rod 37 meshed with the racks 35 is connected between two adjacent movable blocks 36, and a lifting motor 38 is arranged at one end of the transmission rod 37; the movable block 36 is fixedly connected with the bracket 6, and the lifting motor 38 can drive the transmission rod 37 to rotate so as to drive the bracket 6 to move up and down along the rack 35.
The application adopts four-column type balance lifting, is stable and efficient, the lifting motor 38 adopts an absolute value encoder, the frequency converter of the lifting motor 38 adopts closed-loop vector control, the torque is ensured to be constant, the lifting load can reach two tons at maximum, the traditional cam transmission mechanism is replaced, the consumption of vulnerable parts is reduced, and meanwhile, the application has the advantages of convenient maintenance, simple structure and reliable operation. A protective cover mounted on the outside of the upright 34 is also provided on the outside of the lift motor 38 for protecting the lift motor 38.
The upper limiting device 7 is an upper locating pin arranged above the upright post 34, the lower limiting device 8 is a lower locating pin arranged below the upright post 34, the bracket 6 is provided with a limiting cylinder 39, a piston rod of the limiting cylinder 39 is provided with a limiting plate 40, and the limiting plate 40 is provided with a pin hole for the upper locating pin and the lower locating pin to pass through.
When the Pallet trolley 5 runs to an upper stop position or a lower stop position in operation, the limiting cylinder 39 drives the limiting plate 40 to move towards the upper limiting pin and the lower limiting pin, so that the upper limiting pin or the lower limiting pin is penetrated into the pin hole, the bracket 6 and the upright post 34 are fixed together, the Pallet trolley 5 cannot shake in the switching process of workpieces on the Pallet trolley 5, and the precision of workpiece clamping is ensured.
The transverse driving mechanism further comprises a driving motor 41 and a coupler 42, one end of the coupler 42 is connected with the main friction wheel 14, the other end of the coupler 42 is connected with the driving motor 41, and the driving motor 41 can drive the coupler 42 to rotate so as to drive the main friction wheel 14 to rotate and further drive the friction rod 9 to move.
In the prior art, a dual-motor driving device is adopted for driving the friction rod 9, the device adopts two motors to respectively control the two main friction wheels 14 to rotate, and the output power of the two motors is difficult to keep the same, so that the rotation speeds of the two main friction wheels 14 are different, the front and back movement speeds of the friction rod 9 are inconsistent, the friction rod 9 is pulled, and the structural performance is lowered.
The guiding mechanism comprises a plurality of groups of guide rollers 43 which are transversely arranged, two guide rods 44 which are parallel to the friction rods 9, and a roller 45 which can be arranged on the guide rods 44 in a rolling way is arranged at the bottom end of the Pallet trolley 5. Because the friction rod 9 is longer, when shifting between different stations, so that the guide roller 43 is arranged for preventing the friction rod 9 from deviating, the friction rod 9 can only move between the guide rollers 43 on two sides, a carrier roller can be arranged below the carrier roller, the carrier roller can be arranged to enable the friction rod 9 to play a role in supporting the friction rod 9 upwards in the moving process, the resistance of the friction rod 9 in the running process can be reduced, the right side of the right lifting mechanism 4 is provided with a right stop block at the same height as the friction rod 9 on the upper station 1, the left side of the left lifting mechanism 3 is provided with a left stop block at the same height as the friction rod 9 on the lower station 2, and the arrangement of the left stop block and the right stop block can limit the maximum stroke of the friction rod 9 in the transverse movement so as to prevent the friction rod 9 from exceeding the stroke due to inertia.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
With the above-described preferred embodiments according to the present application as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present application. The technical scope of the present application is not limited to the description, but must be determined according to the scope of claims.
Claims (8)
1. The utility model provides a high-efficient circulation lift shuttle, includes along transversely setting gradually a plurality of last station (1), is located a plurality of lower station (2) that go up station (1) below set gradually go up station (1) with the left side of lower station (2) is equipped with left elevating system (3), go up station (1) with the right side of lower station (2) is equipped with right elevating system (4), its characterized in that: the upper station (1) and the lower station (2) are respectively provided with a Pallet trolley (5) for placing a workpiece and a transverse driving mechanism for driving the Pallet trolley (5) to move between different stations;
the upper station (1), the left lifting mechanism (3) and the right lifting mechanism (4) are respectively provided with a positioning mechanism for positioning the Pallet trolley (5) and a guiding mechanism for transversely guiding the Pallet trolley (5);
the right lifting mechanism (4) is used for transferring a blank trolley (5) which is empty after the workpiece is machined to a lower station (2) from an upper station (1);
the left lifting mechanism (3) is used for transferring the empty Pallet trolley (5) on the lower station (2) to the upper station (1) from the lower station (2);
the positioning mechanism comprises an overtravel preventing device (16), a clamping device and a pushing device, wherein the overtravel preventing device is used for positioning the Pallet trolley (5); the over-travel prevention device (16) comprises an over-travel prevention cylinder (17) arranged below the Pallet trolley (5), a connecting rod device and a stop block (18), wherein the over-travel prevention cylinder (17) can drive the connecting rod device to abut the stop block (18) on the side wall of the Pallet trolley (5);
the connecting rod device comprises a vertical plate (19), wherein an L-shaped first connecting rod (21) is hinged to the vertical plate (19) through a first pin shaft (20), a stop block (18) is arranged on the side wall above the first connecting rod (21), a second connecting rod (23) is hinged to one side, which is positioned below the first pin shaft (20) and is close to the over travel prevention cylinder (17), of the vertical plate (19) through a second pin shaft (22), a third connecting rod (24) is hinged to the other end of the second connecting rod (23), the other end of the third connecting rod (24) is hinged to the lower end of the first connecting rod (21), a telescopic block (25) is arranged on a piston rod of the over travel prevention cylinder (17), and the telescopic block (25) is hinged to the middle of the first connecting rod (21); the over-travel-preventing cylinder (17) extends out to drive the second connecting rod (23) to rotate upwards around the second pin shaft (22) and push the third connecting rod (24) to rotate upwards, and the third connecting rod (24) rotates upwards to push the first connecting rod (21) to rotate upwards around the first pin shaft (20) so as to abut the stop block (18) on the side wall of the Pallet trolley (5).
2. An efficient cyclic lifting shuttle as defined in claim 1, wherein: the left lifting mechanism (3) and the right lifting mechanism (4) comprise brackets (6) for placing a Pallet trolley (5), an up-and-down driving device for driving the brackets (6) to move up and down, an upper limiting device (7) for keeping the brackets (6) at the same height as the upper station (1), a lower limiting device (8) for keeping the brackets (6) at the same height as the lower station (2), and a transverse driving mechanism for driving the Pallet trolley (5) to move transversely.
3. An efficient cyclic lifting shuttle as defined in claim 1, wherein: the transverse driving mechanism comprises two driving units and a friction rod (9) which is arranged between the two driving units in a penetrating mode and fixedly connected with the Pallet trolley (5), the driving units comprise a first push rod (10) and a second push rod (11) which is stacked with the first push rod (10), a hinge shaft (12) is arranged in the middle of the first push rod (10) and the second push rod (11), and the first push rod (10) and the second push rod (11) can rotate along the hinge shaft (12) under the driving of a driving cylinder (13); one end of the first push rod (10) is provided with a main friction wheel (14), and the other end of the first push rod (10) is connected with a piston rod of the driving cylinder (13); one end of the second push rod (11) is provided with a secondary friction wheel (15), and the other end of the second push rod (11) is connected with a body of the driving cylinder (13); the drive cylinder (13) is contracted so that the master friction wheel (14) and the slave friction wheel (15) are brought close to each other to be pressed against the friction lever (9).
4. An efficient cyclic lifting shuttle as defined in claim 1, wherein: the clamping device is provided with two groups and comprises two clamping cylinders (26), the clamping cylinders (26) are provided with overturning blocks (27), the Pallet trolley (5) is provided with clamping blocks (28), and the two clamping cylinders (26) can respectively drive the overturning blocks (27) to clamp the clamping blocks (28) from two sides;
the pushing device comprises a first pushing component and a second pushing component which is opposite to the first pushing component; the first pushing assembly comprises a pushing cylinder (29) and an abutting block (30) arranged on the Pallet trolley (5), a piston rod of the pushing cylinder (29) is provided with a pushing block (31), and the pushing block (31) can be tightly abutted against the abutting block (30) under the driving of the pushing cylinder (29); the second pushing component comprises a pushing block (32), a pressing block (33) which is arranged on the Pallet trolley (5) and corresponds to the pushing block (32), and the pressing block (33) can be pushed against the pushing block (32) under the driving of the pushing cylinder (29).
5. An efficient cyclic lifting shuttle as defined in claim 2, wherein: the upper and lower driving device comprises four upright posts (34), wherein racks (35) which are vertically arranged are arranged on the upright posts (34), movable blocks (36) are arranged on the racks (35) in a penetrating manner, a transmission rod (37) meshed with the racks (35) is connected between two adjacent movable blocks (36), and a lifting motor (38) is arranged at one end of the transmission rod (37); the movable block (36) is fixedly connected with the bracket (6), and the lifting motor (38) can drive the transmission rod (37) to rotate so as to drive the bracket (6) to move up and down along the rack (35).
6. An efficient cyclic lifting shuttle as defined in claim 5, wherein: the upper limiting device (7) is an upper locating pin arranged above the upright post (34), the lower limiting device (8) is a lower locating pin arranged below the upright post (34), a limiting cylinder (39) is arranged on the bracket (6), a limiting plate (40) is arranged on a piston rod of the limiting cylinder (39), and a pin hole for the upper locating pin and the lower locating pin to penetrate is formed in the limiting plate (40).
7. A high efficiency cyclic lifting shuttle as defined in claim 3 wherein: the transverse driving mechanism further comprises a driving motor (41) and a coupler (42), one end of the coupler (42) is connected with the main friction wheel (14), the other end of the coupler (42) is connected with the driving motor (41), and the driving motor (41) can drive the coupler (42) to rotate so as to drive the main friction wheel (14) to rotate and further drive the friction rod (9) to move.
8. A high efficiency cyclic lifting shuttle as defined in claim 3 wherein: the guide mechanism comprises a plurality of groups of guide rollers (43) which are transversely arranged, two guide rods (44) which are parallel to the friction rods (9), and a roller (45) which can be arranged on the guide rods (44) in a rolling way is arranged at the bottom end of the Pallet trolley (5).
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| CN202310308488.3A CN116119313B (en) | 2023-03-28 | 2023-03-28 | Efficient circulating lifting shuttle machine |
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| CN202310308488.3A CN116119313B (en) | 2023-03-28 | 2023-03-28 | Efficient circulating lifting shuttle machine |
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| CN116119313B true CN116119313B (en) | 2023-09-22 |
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| Publication number | Publication date |
|---|---|
| CN116119313A (en) | 2023-05-16 |
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Address after: No. 1288 Pengqing Road, Huaqiao Town, Kunshan City, Suzhou City, Jiangsu Province, 215332 Patentee after: Suzhou Nok Intelligent Equipment Co.,Ltd. Country or region after: China Address before: No. 1288, Pengqing Road, Huaqiao Town, Kunshan City, Suzhou City, Jiangsu Province 215300 Patentee before: SUZHOU NOKE AUTOMOTIVE ENGINEERING MACHINERY Co.,Ltd. Country or region before: China |