CN114260849B - Automatic nut screwing machine for valve - Google Patents
Automatic nut screwing machine for valve Download PDFInfo
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- CN114260849B CN114260849B CN202111621476.3A CN202111621476A CN114260849B CN 114260849 B CN114260849 B CN 114260849B CN 202111621476 A CN202111621476 A CN 202111621476A CN 114260849 B CN114260849 B CN 114260849B
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention discloses an automatic nut screwing machine for a valve, which relates to the field of valve assembly equipment and has the technical scheme that: including the frame and set up the doubly fast chain in the frame, be provided with the microscope carrier subassembly in the frame, be located the top of microscope carrier subassembly in the frame and be provided with the closing device who is used for compressing tightly the work piece to on the microscope carrier subassembly, be located doubly fast chain's both sides in the frame and be provided with respectively and twist nut mechanism, twist nut mechanism including support, fixed connection arc slide rail on the support, sliding connection spanner support on the arc slide rail, sliding connection spanner on spanner support and set up and be used for driving the spanner towards or deviate from the flexible power component of work piece on the spanner support. The invention can simulate manual operation to automatically screw the nut in the middle of the valve through the arrangement of the carrier assembly, the pressing device and the nut screwing mechanism, is not easy to be blocked by flanges at two ends of the valve, and has the advantages of high automation degree and good consistency of products obtained by production.
Description
Technical Field
The invention relates to the field of valve assembly equipment, in particular to an automatic nut screwing machine for a valve.
Background
In the assembly process of the valve, the condition that the nut needs to be screwed is usually met, the existing nut screwing mode is mostly a manual mode, the operation is inconvenient, torsion and the number of screw turns cannot be controlled, the small-scale production and processing can be adapted, the manual operation and the twisting number of turns are inconsistent during the large-scale production and processing, the torsion is different, the product quality is uneven after the production is often caused, some nut screwing machines are designed for people aiming at the problems, however, when the nut in the middle of the valve is screwed, the nut screwing machines are blocked by flanges at two ends of the valve, and the existing nut screwing machines cannot work normally and can only operate manually.
There is therefore a need to propose a new solution to this problem.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an automatic nut screwing machine for a valve, which has the advantages of high automation degree and good consistency of products obtained by production.
The technical aim of the invention is realized by the following technical scheme: the utility model provides an automatic nut machine of twisting of valve, includes the frame and sets up the doubly fast chain in the frame, be provided with in the frame and be provided with the workstation subassembly that can push up the work piece from doubly fast chain and drive work piece pivoted, be provided with the closing device who is used for compressing tightly the work piece to on the workstation subassembly in the frame in the top of workstation subassembly, be provided with respectively in the frame in doubly fast chain both sides screw nut mechanism, screw nut mechanism includes support, fixed connection's arc slide rail on the support, sliding connection's spanner support on the arc slide rail, sliding connection's spanner and the power component who is used for driving the spanner orientation or deviate from the work piece on the spanner support, the arc center of arc slide rail is vertical collineation with the center of workstation subassembly, screw nut mechanism is still including being used for driving the gliding drive assembly of spanner support on the arc slide rail, be provided with in the frame and be used for driving screw nut mechanism radial slip and the XZ axle platform of vertical lift, support fixed connection is on the output of XZ axle platform.
In one embodiment, the carrier assembly comprises a fixed plate fixedly connected to the frame, a guide shaft slidingly connected to the fixed plate, and a top plate and a bottom plate fixedly connected to two ends of the guide shaft respectively, wherein the fixed plate is fixedly connected with a first air cylinder, an output end of the first air cylinder is fixedly connected with the bottom plate, a carrier top plate is slidingly connected between the fixed plate and the bottom plate on the frame, a second air cylinder is fixedly connected to the frame, an output end of the second air cylinder is fixedly connected with the carrier top plate, a rotating shaft is rotationally connected to the carrier top plate, one end of the rotating shaft is fixedly connected with a profiling carrier, the other end of the rotating shaft is fixedly connected with a first bevel gear, a first motor is fixedly connected to the carrier top plate, an output end of the first motor is fixedly connected with a second bevel gear meshed with the first bevel gear, and through grooves for the profiling carrier to extend out are formed in the top plate and the fixed plate.
In one embodiment, a third cylinder is fixedly connected to the fixing plate, an opening block used for supporting the profiling carrier is fixedly connected to the output end of the third cylinder, and the opening of the opening block is larger than the diameter of the rotating shaft and smaller than the diameter of the profiling carrier.
In one embodiment, the pressing device comprises an electric cylinder fixedly connected to the frame and a pressing plate fixedly connected to the output end of the electric cylinder.
In one embodiment, a sliding block is arranged on the arc-shaped sliding rail, a roller in rolling connection with the arc-shaped sliding rail is arranged on the sliding block, and the bracket is fixedly connected with the sliding block.
In one embodiment, the driving assembly comprises an arc-shaped rack arranged on the arc-shaped sliding rail, a second motor fixedly connected to the bracket and a cylindrical gear fixedly connected to the output end of the second motor, and the cylindrical gear is meshed with the arc-shaped rack.
In one embodiment, a buffer spring is arranged between the output end of the power assembly and the wrench.
In one embodiment, the XZ-axis platform comprises an X-axis servo platform fixedly connected to the frame and a Z-axis platform slidingly connected to the output end of the X-axis servo platform through a guide rod, the support is fixedly connected to the Z-axis platform, and a scissor type lifting mechanism is arranged between the Z-axis platform and the output end of the X-axis platform.
In summary, the invention has the following beneficial effects: during operation, place the valve on the frock board to carry into established station by doubly fast chain, the microscope carrier subassembly is with valve top from doubly fast chain, closing device compresses tightly the valve on the microscope carrier subassembly, XZ axle platform drive two screw nut mechanisms are close to the valve, drive assembly drives the spanner and removes arc orbital one end, power assembly drive spanner block is on the nut of valve, the spanner slides along the orbital other end of arc along the support, thereby the simulation manual work has realized the automatic screwing up of valve nut, the microscope carrier subassembly drives the valve simultaneously and rotates, can screw up a plurality of nuts on the valve in proper order, in the course of the work, the spanner is difficult to receive the blocking of valve both ends flange, it is high to have degree of automation, the product uniformity who produces is good advantage.
Drawings
FIG. 1 is a schematic view of a valve automatic nut runner according to an embodiment of the present application;
FIG. 2 is a schematic view of the structure of the nut screwing mechanism and XZ axis platform in the valve automatic nut screwing machine according to the embodiment of the present application;
fig. 3 is a schematic structural view of a carrier assembly in the valve automatic nut screwing machine according to the embodiment of the present application.
In the figure: 1. a frame; 2. a speed multiplication chain; 3. a stage assembly; 31. a fixing plate; 32. a guide shaft; 33. a top plate; 34. a bottom plate; 35. a first cylinder; 36. a carrier top plate; 37. a second cylinder; 38. a rotating shaft; 39. profiling carrier; 340. a first bevel gear; 341. a second bevel gear; 342. a first motor; 343. a third cylinder; 344. a notch block; 4. a compacting device; 41. an electric cylinder; 42. a pressure plate; 5. a nut screwing mechanism; 51. a bracket; 52. an arc-shaped slide rail; 53. an arc-shaped rack; 54. a spanner support; 55. a wrench; 56. a second motor; 57. a cylindrical gear; 58. a power assembly; 581. a buffer spring; 59. a slide block; 6. an XZ axis platform; 61. an X-axis servo platform; 62. a guide rod; 63. a Z-axis platform.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 3, an embodiment of the application provides an automatic nut screwing machine for a valve, which comprises a frame 1 and a double-speed chain 2 arranged on the frame 1, wherein a carrier assembly 3 capable of pushing a workpiece away from the double-speed chain 2 and driving the workpiece to rotate is arranged on the frame 1, and a pressing device 4 used for pressing the workpiece onto the carrier assembly 3 is arranged above the carrier assembly 3 on the frame 1. The two sides of the double-speed chain 2 on the frame 1 are respectively provided with a nut screwing mechanism 5, the nut screwing mechanism 5 comprises a bracket 51, an arc-shaped sliding rail 52 fixedly connected to the bracket 51, a wrench support 54 slidingly connected to the arc-shaped sliding rail 52, a wrench 55 slidingly connected to the wrench support 54, and a power component 58 arranged on the wrench support 54 and used for driving the wrench 55 to stretch towards or deviate from a workpiece, and the power component 58 can be an oil cylinder, an air cylinder, an electric cylinder 41 and the like. The center of the arc-shaped slide rail 52 is longitudinally collinear with the center of the carrier assembly 3. The nut screwing mechanism 5 further comprises a driving assembly for driving the spanner support 54 to slide on the arc-shaped sliding rail 52, the frame 1 is provided with an XZ axis platform 6 for driving the nut screwing mechanism 5 to slide radially and lift longitudinally, and the bracket 51 is fixedly connected to the output end of the XZ axis platform 6.
Note that, the speed-doubling chain 2 is in the prior art, and is not described in detail in this embodiment.
When the nut screwing machine works, the valve is placed on the tooling plate and is conveyed into a given station by the double-speed chain 2, the carrier assembly 3 pushes the valve away from the double-speed chain 2, the pressing device 4 presses the valve on the carrier assembly 3, the XZ shaft platform 6 drives the two nut screwing mechanisms 5 to be close to the valve, the driving assembly drives the wrench 55 to move to one end of the arc-shaped track, the power assembly 58 drives the wrench 55 to be clamped on the nut of the valve, the wrench 55 slides along the other end of the arc-shaped track along with the support 51, so that automatic screwing of the valve nut is realized by simulation, the carrier assembly 3 drives the valve to rotate, and a plurality of nuts on the valve can be screwed in sequence.
Above-mentioned mode, through the setting of carrier assembly 3, closing device 4 and screw up nut mechanism 5, can simulate the manual work and carry out automatic tightening to the nut at valve middle part, be difficult for receiving the blocking of valve both ends flange, have degree of automation height, the product uniformity that the production obtained is good advantage.
On the basis of the above, the carrier assembly 3 comprises a fixed plate 31 fixedly connected to the frame 1, a guide shaft 32 slidingly connected to the fixed plate 31, and a top plate 33 and a bottom plate 34 respectively fixedly connected to two ends of the guide shaft 32, wherein a first air cylinder 35 is fixedly connected to the fixed plate 31, and an output end of the first air cylinder 35 is fixedly connected with the bottom plate 34. The frame 1 is slidably connected with a carrier top plate 36 between the fixed plate 31 and the bottom plate 34, a second air cylinder 37 is fixedly connected to the frame 1, and the output end of the second air cylinder 37 is fixedly connected with the carrier top plate 36. The rotary shaft 38 is rotatably connected to the carrier top plate 36, one end of the rotary shaft 38 is fixedly connected to the profiling carrier 39, the other end of the rotary shaft is fixedly connected to the first bevel gear 340, the carrier top plate 36 is fixedly connected to the first motor 342, and the output end of the first motor 342 is fixedly connected to the second bevel gear 341 meshed with the first bevel gear 340. The top plate 33 and the fixed plate 31 are provided with through grooves for extending the profiling carrier 39.
When the assembly works, after the valve enters from the double-speed chain 2, the first cylinder 35 contracts, so that the bottom plate 34 and the top plate 33 are simultaneously lifted to a position higher than the double-speed chain 2, the jig plate for placing the valve cannot be suspended or turned over on the double-speed chain 2, then the piston rod of the second cylinder 37 stretches out, the profiling carrier 39 protrudes out of the top plate 33, and when screwing operation is carried out, the valve is located on the profiling carrier 39 along with the jig plate, so that the jig plate is not contacted with the top plate 33, the profiling carrier 39 can be conveniently rotated, and meanwhile, the first motor 342 drives the rotating shaft 38 to rotate so as to rotate the profiling carrier 39, so that transposition of a valve nut is realized.
In the above manner, lifting and rotation of the profiling carrier 39 are realized, and the top plate 33 is arranged to be liftable, so that the top plate 33 can keep a relatively short distance from the square carrier, and the jig plate and the valve are not easy to directly roll over to contact with the double-speed chain 2, so that the stability is relatively good.
On the basis of the above, the fixing plate 31 is fixedly connected with a third cylinder 343, the output end of the third cylinder 343 is fixedly connected with a notch block 344 for supporting the profiling carrier 39, and the notch of the notch block 344 is larger than the diameter of the rotating shaft 38 and smaller than the diameter of the profiling carrier 39.
In operation, the third cylinder 343 drives the notch block 344 to extend and support the profiling carrier 39, so that the profiling carrier 39 is not easy to drop accidentally.
In the above manner, the profiling carrier 39 is not easy to shake during working, and the downward pressure is not concentrated on the first bevel gear 340 and the second bevel gear 341, so that the service life of the profiling carrier can be prolonged.
On the basis of the above, the pressing device 4 comprises an electric cylinder 41 fixedly connected to the frame 1 and a pressing plate 42 fixedly connected to the output end of the electric cylinder 41.
Specifically, the diameter of the pressure plate 42 is larger than that of the valve, and the electric cylinder 41 drives the pressure plate 42 to lift so as to release and compress the valve.
By means of the mode, the clamping of the valve is more stable, and therefore the nut screwing mechanism 5 is beneficial to screwing nuts of the valve.
On the basis of the above, the arc-shaped slide rail 52 is provided with the slide block 59, the slide block 59 is provided with the roller wheel which is in rolling connection with the arc-shaped slide rail 52, and the bracket 51 is fixedly connected with the slide block 59.
Specifically, a plurality of rollers are provided, and the rollers are respectively connected to the outer side and the inner side of the arc-shaped sliding rail 52 in a rolling manner.
In the above manner, the sliding block 59 drives the bracket 51 to move in an arc along the arc sliding rail 52, and has the advantages of good stability and smooth operation.
The driving assembly comprises an arc-shaped rack 53 arranged on the arc-shaped slide rail 52, a second motor 56 fixedly connected to the bracket 51 and a cylindrical gear 57 fixedly connected to the output end of the second motor 56, and the cylindrical gear 57 is meshed with the arc-shaped rack 53.
On the basis of the above, a buffer spring 581 is provided between the output end of the power unit 58 and the wrench 55.
Specifically, the output end of the power assembly 58 is fixedly connected with a spring sleeve rod, one end of the spring sleeve rod, which is far away from the power assembly 58, is in sliding connection with the wrench 55, a limit cap is fixed at the end of the spring sleeve rod, and the buffer spring 581 is sleeved on the spring sleeve rod between the wrench 55 and the output end of the power assembly 58.
In the above manner, through the arrangement of the buffer spring 581, when the power assembly 58 drives the wrench 55 to extend and be clamped on the nut of the valve, the wrench 55 is not easy to be in hard contact with the valve and the flange of the valve under the buffer action of the buffer spring 581, so that the damage of the valve can be effectively avoided.
On the basis of the above, the XZ-axis platform 6 comprises an X-axis servo platform 61 fixedly connected to the frame 1, and a Z-axis platform 63 slidably connected to an output end of the X-axis servo platform 61 through a guide rod 62, the support 51 is fixedly connected to the Z-axis platform 63, and a scissor lifting mechanism is arranged between the Z-axis platform 63 and the output end of the X-axis platform.
It should be noted that, the scissor fork lifting mechanism is provided with an adjusting hand wheel, and the X-axis servo platform 61 and the scissor fork lifting mechanism are both in the prior art, which is not described in detail in this embodiment.
In operation, the X-axis servo platform 61 can drive the wrench 55 toward or away from the valve nut, and the Z-axis platform 63 can adjust the height of the wrench 55 to align the valve nut.
In the above manner, the wrench 55 and the valve nut do not need to be adjusted and aligned for many times in the height direction, and the production cost is saved by adopting the hand wheel for adjustment.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (6)
1. The utility model provides an automatic nut machine of twisting of valve, includes frame (1) and sets up doubly fast chain (2) on frame (1), its characterized in that: the machine frame (1) is provided with a carrying platform assembly (3) which can push a workpiece away from a speed doubling chain (2) and drive the workpiece to rotate, a pressing device (4) used for pressing the workpiece onto the carrying platform assembly (3) is arranged above the carrying platform assembly (3) on the machine frame (1), two sides of the speed doubling chain (2) on the machine frame (1) are respectively provided with a nut screwing mechanism (5), the nut screwing mechanism (5) comprises a bracket (51), an arc sliding rail (52) fixedly connected onto the bracket (51), a spanner support (54) connected onto the arc sliding rail (52) in a sliding manner, a spanner (55) connected onto the spanner support (54) in a sliding manner and a power assembly (58) arranged on the spanner support (54) and used for driving the spanner (55) to stretch towards or deviate from the workpiece, the arc center of the arc sliding rail (52) is longitudinally collinear with the center of the carrying platform assembly (3), the nut screwing mechanism (5) further comprises a driving assembly used for driving the spanner support (54) to slide on the arc sliding rail (52), and the driving mechanism (1) is provided with a vertical lifting platform (6) which is connected onto a radial lifting platform (Z) and a lifting platform (6) in a sliding manner;
the carrier assembly (3) comprises a fixed plate (31) fixedly connected to the frame (1), a guide shaft (32) slidingly connected to the fixed plate (31) and a top plate (33) and a bottom plate (34) respectively fixedly connected to two ends of the guide shaft (32), a first air cylinder (35) is fixedly connected to the fixed plate (31), an output end of the first air cylinder (35) is fixedly connected with the bottom plate (34), a carrier top plate (36) is slidingly connected between the fixed plate (31) and the bottom plate (34) on the frame (1), a second air cylinder (37) is fixedly connected to the frame (1), an output end of the second air cylinder (37) is fixedly connected with the carrier top plate (36), a rotating shaft (38) is rotatably connected to the carrier top plate (36), and the rotating shaft is fixedly connected with the rotating shaft
(38) One end of the first motor (342) is fixedly connected with a profiling carrier (39), the other end of the first motor (342) is fixedly connected with a first bevel gear (340), the output end of the first motor (342) is fixedly connected with a second bevel gear (341) meshed with the first bevel gear (340), and through grooves for the profiling carrier (39) to extend are formed in the top plate (33) and the fixed plate (31);
the fixed plate (31) is fixedly connected with a third air cylinder (343), the output end of the third air cylinder (343) is fixedly connected with a notch block (344) for supporting the profiling carrying platform (39), and the notch of the notch block (344) is larger than the diameter of the rotating shaft (38) and smaller than the diameter of the profiling carrying platform (39).
2. The automatic valve nut screwing machine according to claim 1, wherein: the compressing device (4) comprises an electric cylinder (41) fixedly connected to the frame (1) and a pressure plate (42) fixedly connected to the output end of the electric cylinder (41).
3. The automatic valve nut screwing machine according to claim 1, wherein: the novel sliding device is characterized in that a sliding block (59) is arranged on the arc-shaped sliding rail (52), rollers in rolling connection with the arc-shaped sliding rail (52) are arranged on the sliding block (59), and the support (51) is fixedly connected with the sliding block (59).
4. The automatic valve nut screwing machine according to claim 1, wherein: the driving assembly comprises an arc-shaped rack (53) arranged on the arc-shaped sliding rail (52), a second motor (56) fixedly connected to the bracket (51) and a cylindrical gear (57) fixedly connected to the output end of the second motor (56), and the cylindrical gear (57) is meshed with the arc-shaped rack (53).
5. The automatic valve nut screwing machine according to claim 1, wherein: a buffer spring (581) is arranged between the output end of the power assembly (58) and the wrench (55).
6. The automatic valve nut screwing machine according to claim 1, wherein: the X Z axis platform (6) comprises an X axis servo platform (61) fixedly connected to the frame (1), and a Z axis platform (63) slidably connected to the output end of the X axis servo platform (61) through a guide rod (62), the support (51) is fixedly connected to the Z axis platform (63), and a scissor type lifting mechanism is arranged between the Z axis platform (63) and the output end of the X axis platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111621476.3A CN114260849B (en) | 2021-12-28 | 2021-12-28 | Automatic nut screwing machine for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111621476.3A CN114260849B (en) | 2021-12-28 | 2021-12-28 | Automatic nut screwing machine for valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114260849A CN114260849A (en) | 2022-04-01 |
| CN114260849B true CN114260849B (en) | 2023-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111621476.3A Active CN114260849B (en) | 2021-12-28 | 2021-12-28 | Automatic nut screwing machine for valve |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206550624U (en) * | 2017-02-07 | 2017-10-13 | 广州敏惠汽车零部件有限公司 | A kind of automatic nutting device of doorframe guide rail |
| CN110281002B (en) * | 2019-07-26 | 2024-04-09 | 广汽本田汽车有限公司 | Automobile front suspension bolt fastening equipment and working method |
| CN214685148U (en) * | 2020-12-18 | 2021-11-12 | 遨博（江苏）机器人有限公司 | Six-axis robot cooperative screw tightening mechanism |
| CN113635026B (en) * | 2021-08-20 | 2022-10-28 | 瑞立集团瑞安汽车零部件有限公司 | Automatic piston press-fitting and pull rod screwing device for brake chamber |
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2021
- 2021-12-28 CN CN202111621476.3A patent/CN114260849B/en active Active
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