CN117381390B - Automobile engine piston connecting rod assembly device - Google Patents
Automobile engine piston connecting rod assembly device Download PDFInfo
- Publication number
- CN117381390B CN117381390B CN202311534973.9A CN202311534973A CN117381390B CN 117381390 B CN117381390 B CN 117381390B CN 202311534973 A CN202311534973 A CN 202311534973A CN 117381390 B CN117381390 B CN 117381390B
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- cylinder
- sliding
- transposition
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- 230000007246 mechanism Effects 0.000 claims abstract description 60
- 230000017105 transposition Effects 0.000 claims abstract description 50
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 239000003921 oil Substances 0.000 claims description 44
- 238000000605 extraction Methods 0.000 claims description 20
- 238000003825 pressing Methods 0.000 claims description 20
- 238000003860 storage Methods 0.000 claims description 19
- 239000010687 lubricating oil Substances 0.000 claims description 13
- 238000001179 sorption measurement Methods 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 241001149930 Protura <class> Species 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/10—Aligning parts to be fitted together
- B23P19/12—Alignment of parts for insertion into bores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/50—Other automobile vehicle parts, i.e. manufactured in assembly lines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to the technical field of engine assembly, in particular to an automobile engine piston connecting rod assembly device, which comprises a bedplate, wherein one end of the upper side of the bedplate is fixed with a top frame, one side of the top frame is provided with a controller, and the automobile engine piston connecting rod assembly device further comprises: the transposition mechanism comprises a large chute arranged at the upper end of the top frame and a transposition motor arranged at one end of the top frame, wherein the inner side of the large chute is connected with a transposition slide plate in a sliding manner, the inner side of the large chute is connected with a transposition screw rod in a penetrating and rotating manner, and the transposition screw rod is connected to the inside of the transposition slide plate in a penetrating and rotating manner through threads. According to the invention, through the pin hole concentric adjusting mechanism, the pin hole of the connecting rod and the pin hole of the piston are in a concentric state, so that the pin shaft is conveniently inserted into the inner side of the pin hole, the quick assembly is realized, the collision or extrusion between the pin shaft and the edge of the pin hole caused by the deviation between the two pin holes is prevented, and the scratch between the pin shaft and the inner wall of the pin hole is prevented.
Description
Technical Field
The invention relates to the technical field of engine assembly, in particular to an automobile engine piston connecting rod assembly device.
Background
The piston connecting rod group is an important transmission mechanism in the engine and is used for converting the reciprocating motion of a piston into the rotary motion of a crankshaft and converting the force acting on the piston into the external output torque of the crankshaft so as to drive the wheels of the automobile to rotate.
The piston and the connecting rod are connected in a rotating way through the pin shaft, when the engine is produced, the pin hole of the piston is aligned with the pin hole of the connecting rod, and then the pin shaft is inserted, so that the piston and the connecting rod can rotate relatively.
The publication number is: CN116852102a discloses an automatic assembling device for piston connecting rod of air compressor, which comprises a bracket, the top fixedly connected with backup pad of support, the top fixedly connected with limiting plate of backup pad, the inboard of backup pad is provided with the spacing subassembly of transmission, the spacing subassembly of transmission includes the connecting axle, the connecting axle rotates the inboard of connecting at the backup pad, the outside fixedly connected with drive gear of connecting axle, the outside transmission of drive gear is connected with the toothed belt, the top fixedly connected with square table of toothed belt, the inboard fixedly connected with supporting spring of square table, the top fixedly connected with contact plate of supporting spring, the inboard rotation of square table is connected with two-way screw rod, the outside threaded connection of two-way screw rod has the screw block.
Based on the above search and in combination with the real problem discovery: when the device is assembled to the piston connecting rod, the pin hole of the piston cannot be aligned with the pin hole of the connecting rod to be in a concentric state, if a small deviation is generated between the pin holes of the piston and the connecting rod, the end part of the pin shaft collides or extrudes with the edge of the pin hole of the connecting rod when the pin shaft is inserted, so that the pin hole or the pin shaft is deformed, the assembly precision of the piston connecting rod is reduced, and the operation of an engine and the service life of the engine are influenced.
Disclosure of Invention
The invention aims to provide an assembly device for a piston connecting rod of an automobile engine, which solves the problems in the prior art.
The technical scheme of the invention is as follows: the utility model provides an automobile engine piston connecting rod assembly device, includes the platen, the upside one end of platen is fixed with the roof-rack, the controller is installed to one side of roof-rack, still includes: the transposition mechanism comprises a large chute arranged at the upper end of the top frame and a transposition motor arranged at one end of the top frame, wherein the inner side of the large chute is connected with a transposition slide plate in a sliding manner, the inner side of the large chute is connected with a transposition screw rod in a penetrating and rotating manner, the transposition screw rod is connected to the inside of the transposition slide plate in a penetrating and rotating manner through threads, the driving end of the transposition motor is fixedly connected with one end of the transposition screw rod, the transposition motor is electrically connected with the controller, and two ends of the lower side of the transposition slide plate are respectively provided with a pin hole concentric adjusting mechanism and a pin shaft installing mechanism; the piston fixing mechanism is arranged on the upper side of the bedplate and positioned at the middle section position; and the connecting rod fixing mechanism is arranged on the upper side of the bedplate and positioned at one end position.
Preferably, the pin shaft mounting mechanism comprises a first lifting electric cylinder mounted at one end of the lower side of the transposition slide plate, a first cylinder shell is fixed at the telescopic end of the first lifting electric cylinder, the first cylinder is mounted at the upper end of the inner side of the first cylinder shell, eight circumferentially arranged transverse guide rods are inserted in a sliding manner in the outer side of the first cylinder shell, two connecting plates are fixed at one ends of the same side of the transverse guide rods, four connecting plates are elastically connected with the inner side of the first cylinder shell through return springs, push blocks are fixed at the other sides of the four connecting plates, inclined planes are arranged at one ends of the four push blocks, L-shaped pull rods are fixed at the lower ends of the four connecting plates, an adsorption mechanism is arranged between the four inner support rods and the first cylinder shell, rollers are fixed at positions of the telescopic ends of the first cylinder, corresponding to the connecting plates, one ends of the rollers are rotatably connected with the first air cylinder frame, and the first electric controller is electrically connected with the first air cylinder frame.
Preferably, the adsorption mechanism comprises an air extraction piston cylinder fixed at the lower end of the inner side of the first cylindrical shell, a main air passage and a plurality of branch air passages, wherein the main air passages and the branch air passages are formed in the four inner stays, the branch air passages are positioned at the same position and are communicated with the inner part of the main air passage, a piston plate is slidably connected to the inner side of the air extraction piston cylinder, a piston push rod extending to the outer part of the air extraction piston cylinder is fixedly arranged at the upper end of the piston plate, the lower end of the piston plate is elastically connected with the lower end of the inner side of the air extraction piston cylinder through a piston spring, and the upper ends of the four main air passages are communicated with the upper end space of the air extraction piston cylinder through soft air pipes.
Preferably, the sections of the four inner stays are arc-shaped, and rubber gaskets are arranged on the outer sides of the four inner stays.
Preferably, the lower ends of the four inner stays are respectively fixed with a guide cone head.
Preferably, the concentric adjustment mechanism of pinhole is including installing the second lift jar at the transposition slide downside other end, the rotating electrical machines is installed to the flexible end of second lift jar, the drive end of rotating electrical machines is fixed with the second cylinder shell, three be the straight sliding tray of circumference range is seted up to the lower extreme of second cylinder shell, every the inboard of straight sliding tray all is fixed with the spout guide arm, every the outside of spout guide arm is all overlapped and is equipped with the sliding block, every the upper end of sliding block all rotates and is connected with the cylinder connecting rod, the second cylinder is installed to the inboard upper end of second cylinder shell, the flexible end of second cylinder is connected with the upper end rotation of a plurality of cylinder connecting rods, and three the lower extreme of sliding block all rotates and is connected with the oil storage shell, and three the equal fixed cartridge of lower extreme of oil storage shell is equipped with the hollow post, every the equal cover that rotates of hollow post is equipped with rotates the sleeve, is located the same department all is provided with between rotation sleeve, hollow post, the oil storage shell and the equal electrical connection of second cylinder, second electric controller and equal electric connection.
Preferably, the lubricating oil smearing mechanism comprises a pressing oil plate which is connected to the inner side of the oil storage shell in a sliding manner, an oil injection pipe orifice which is inserted and arranged on one side of the oil storage shell, a plurality of oil outlet small holes which are arranged circumferentially and are arranged on the outer side of the rotating sleeve, and a plurality of hollow column long strip holes which are arranged at equal intervals and are arranged on one side of the outer portion of the hollow column, wherein the upper end of the pressing oil plate is connected with a pressure spring, the upper end of the pressure spring is connected with the upper end of the inner side of the oil storage shell, and each hollow column long strip hole is aligned with the oil outlet small holes at the same height.
Preferably, isolation rings are fixed on the outer side of the rotary sleeve between the adjacent oil outlet holes.
Preferably, the piston fixing mechanism comprises two vertical plates fixed on the upper side of the bedplate and a third cylinder installed on the upper side of the bedplate and located between the two vertical plates, wherein the upper ends of the two vertical plates are respectively fixed with a fixing sleeve, the inner sides of the fixing sleeves are respectively connected with a rotating shaft in a penetrating and rotating mode, one sides of the rotating shafts are respectively and symmetrically fixed with two rotating arms, one ends of the two rotating arms, located on the same side, are respectively fixed with a piston pressing rod, the other sides of the rotating shafts are respectively and fixedly provided with a push-pull rod extending to the outer sides of the fixing sleeves, one ends of the push-pull rods are respectively and rotatably connected with a sliding shaft, the telescopic ends of the third cylinder are respectively fixed with a sliding groove plate, two sliding pin grooves are formed in the two ends of the sliding groove plates, and the two sliding shafts are respectively and slidably connected with the inner sides of the two sliding pin grooves, and the third cylinder is electrically connected with the controller.
Preferably, the connecting rod fixing mechanism comprises two supporting guide posts fixed at one end of the upper side of the bedplate, the outer sides of the two supporting guide posts are slidably connected with a transverse sliding plate, a portal is fixed on the upper side of the transverse sliding plate, a fourth cylinder is installed on the upper side of the portal, a connecting rod pressing plate is fixed at the telescopic end of the fourth cylinder, and the fourth cylinder is electrically connected with the controller.
The subject matter provided herein by way of improvement over the prior art, has the following improvements and advantages:
the method comprises the following steps: according to the invention, the pin hole of the connecting rod and the pin hole of the piston are in a concentric state through the pin hole concentric adjusting mechanism, so that the pin shaft is conveniently inserted into the inner side of the pin hole, quick assembly is realized, collision or extrusion between the pin shaft and the edge of the pin hole caused by deviation between the two pin holes is prevented, scratch is caused between the pin shaft and the inner wall of the pin hole, meanwhile, through the lubricating oil smearing mechanism in the lubricating oil smearing mechanism, lubricating oil is uniformly adhered to the inner wall of the pin hole of the piston and the connecting rod, the lubrication degree can be increased when the pin shaft is inserted, scratch is further prevented from being caused on the inner wall of the pin hole and the outer surface of the pin shaft, the uniform pressure distribution between the pin shaft and the pin hole is ensured, and the assembly precision is improved.
And two,: according to the invention, the positions of the piston and the connecting rod can be fixed through the piston fixing mechanism and the connecting rod fixing mechanism respectively, so that pin holes of the piston and the connecting rod are always concentric, no offset is generated, the pin shaft can be inserted into the pin hole more smoothly, the quick assembly is realized, meanwhile, the outer surface of the pin shaft and the inner wall of the pin hole are not scratched, and the assembly precision is improved.
And thirdly,: according to the invention, the pin shaft can be fixed from the inner side of the pin shaft through the pin shaft mounting mechanism, so that the contact area between the pin shaft and the pin shaft is increased, deformation and bending of the pin shaft caused by inserting the pin shaft are prevented, meanwhile, when the pin shaft is inserted and assembled, the pin shaft can be vertically inserted into the pin hole where the piston and the connecting rod are concentric with each other, the pin shaft keeps vertical state and moves downwards, collision and friction between the pin shaft and the inner wall of the pin hole can be effectively avoided, and the assembly precision is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a first view structure according to the present invention;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present invention;
FIG. 3 is a schematic view of an assembled piston rod according to the present invention;
FIG. 4 is a first cross-sectional schematic view of the present invention;
FIG. 5 is an enlarged schematic view of the structure of FIG. 4B according to the present invention;
FIG. 6 is a second cross-sectional schematic view of the present invention;
FIG. 7 is an enlarged schematic view of the structure of FIG. 6E according to the present invention;
FIG. 8 is an enlarged schematic view of the structure of FIG. 7 at F in accordance with the present invention;
FIG. 9 is an enlarged schematic view of the structure of FIG. 6C in accordance with the present invention;
fig. 10 is an enlarged schematic view of the structure of fig. 6D according to the present invention.
Reference numerals:
1. A platen; 2. a top frame; 3. a controller; 4. a transposition motor; 5. a transposition screw rod; 6. a transposition slide plate; 101. a first lifting cylinder; 102. a first cylindrical shell; 103. a first cylinder; 104. a roller frame; 105. drag reduction idler wheels; 106. a transverse guide rod; 107. a connecting plate; 108. a return spring; 109. a pushing block; 110. an inclined plane; 111. an air extraction piston cylinder; 112. a piston plate; 113. a piston spring; 114. a piston push rod; 115. an L-shaped pull rod; 116. an inner stay; 117. a main air passage; 118. a branch air passage; 119. a rubber gasket; 120. a guide cone head; 201. a second lifting cylinder; 202. a rotating electric machine; 203. a second cylindrical shell; 204. a second cylinder; 205. a cylinder connecting rod; 206. a straight chute; 207. a chute guide rod; 208. a sliding block; 209. an oil storage shell; 210. a hollow column; 211. rotating the sleeve; 212. an oil outlet small hole; 213. a hollow column strip hole; 214. a pressure spring; 215. a pressure oil plate; 216. an oiling pipe orifice; 217. a spacer ring; 301. a vertical plate; 302. a fixed sleeve; 303. a rotating shaft; 304. a rotating arm; 305. a piston pressing rod; 306. a push-pull rod; 307. a third cylinder; 308. a chute plate; 309. a slide pin slot; 310. a slide shaft; 401. supporting guide posts; 402. a transverse slide plate; 403. a door frame; 404. a fourth cylinder; 405. and a connecting rod pressing plate.
Detailed Description
The following detailed description of the present invention clearly and fully describes the technical solutions of the embodiments of the present invention, and it is apparent that the described embodiments 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.
The invention provides an automobile engine piston connecting rod assembling device through improvement, which comprises the following technical scheme:
As shown in fig. 1 to 10, an embodiment of the present invention provides an assembly device for a piston rod of an automobile engine, which includes a platen 1, a top frame 2 is fixed at one end of the upper side of the platen 1, a controller 3 is installed at one side of the top frame 2, and further includes: the transposition mechanism comprises a large chute arranged at the upper end of the top frame 2 and a transposition motor 4 arranged at one end of the top frame 2, wherein the inner side of the large chute is in sliding connection with a transposition slide plate 6, the inner side of the large chute is in penetrating rotation connection with a transposition screw rod 5, the transposition screw rod 5 is in penetrating rotation connection with the inside of the transposition slide plate 6 through threads, the driving end of the transposition motor 4 is fixedly connected with one end of the transposition screw rod 5, the transposition motor 4 is electrically connected with the controller 3, and two ends of the lower side of the transposition slide plate 6 are respectively provided with a pin hole concentric adjusting mechanism and a pin shaft installing mechanism; the piston fixing mechanism is arranged on the upper side of the bedplate 1 and positioned at the middle section position; and the connecting rod fixing mechanism is arranged on the upper side of the bedplate 1 and positioned at one end position.
Further, the pin shaft mounting mechanism comprises a first lifting electric cylinder 101 mounted at one end of the lower side of the transposition slide plate 6, a first cylindrical shell 102 is fixed at the telescopic end of the first lifting electric cylinder 101, a first air cylinder 103 is mounted at the upper end of the inner side of the first cylindrical shell 102, eight transverse guide rods 106 which are circumferentially arranged are inserted in a sliding manner outside the first cylindrical shell 102, connecting plates 107 are fixed at one ends of the two transverse guide rods 106 which are positioned at the same side, one sides of the four connecting plates 107 are elastically connected with the inner side of the first cylindrical shell 102 through return springs 108, push blocks 109 are fixed at the other sides of the four connecting plates 107, inclined planes 110 are arranged at one ends of the four push blocks 109, L-shaped pull rods 115 are fixed at the lower ends of the four connecting plates 107, an adsorption mechanism is arranged between the four inner support rods 116 and the first cylindrical shell 102, rolling wheels 104 are fixed at positions of the telescopic ends of the first air cylinder 103 corresponding to each connecting plate 107, one end 103 of each rolling wheel carrier 104 is rotatably connected with a pushing block 109, and the first lifting electric cylinder 101 is electrically connected with a lifting roller carrier 3;
Through the round pin axle installation mechanism, can follow the inboard of round pin axle and fix the round pin axle, increased the area of contact with the round pin axle, prevent to lead to the round pin axle to warp crooked when inserting the round pin axle, simultaneously when inserting the equipment round pin axle, can be with the vertical pin axle inside inserting the pin hole that piston and connecting rod are concentric each other, the round pin axle keeps vertical state to move down, can effectively avoid round pin axle and the inner wall of pin hole to produce collision and friction, improves assembly precision.
Further, the adsorption mechanism comprises an air extraction piston cylinder 111 fixed at the lower end of the inner side of the first cylindrical shell 102, a main air passage 117 and a plurality of branch air passages 118 which are arranged in four inner stays 116, wherein the plurality of branch air passages 118 positioned at the same position are all communicated with the inside of the main air passage 117, a piston plate 112 is connected to the inner side of the air extraction piston cylinder 111 in a sliding manner, a piston push rod 114 extending to the outside of the air extraction piston cylinder 111 is fixed at the upper end of the piston plate 112, the lower end of the piston plate 112 is elastically connected with the lower end of the inner side of the air extraction piston cylinder 111 through a piston spring 113, and the upper ends of the four main air passages 117 are all communicated with the upper end space of the air extraction piston cylinder 111 through a soft air pipe;
when the telescopic end of the first cylinder 103 abuts against the piston push rod 114 of the adsorption mechanism, the piston plate 112 can be pushed to move downwards, the piston spring 113 is compressed, the upper end space of the air extraction piston cylinder 111 is increased, air inside the four main air passages 117 and the plurality of branch air passages 118 inside the four inner support bars 116 is sucked into the inner side of the air extraction piston cylinder 111, negative pressure is formed inside the main air passages 117 and the branch air passages 118, a certain suction force is generated between the four inner support bars 116 and the inner wall of the pin shaft, the fixing firmness between the pin shaft and the four inner support bars 116 is further improved, sliding between the pin shaft and the inner support bars 116 is prevented, scratch is avoided on the inner surface of the pin shaft, the pin shaft is conveniently inserted into the inner side of the pin hole, and the assembly efficiency is improved.
Further, the sections of the four inner stays 116 are arc-shaped, and rubber gaskets 119 are arranged on the outer sides of the four inner stays 116;
The rubber gasket 119 can provide a certain protection for the inner surface of the pin shaft, prevent the inner surface of the pin shaft from being scratched, improve the sealing effect of the inner stay 116 and the inner surface of the pin shaft, improve the adsorption fixing effect of the adsorption mechanism on the pin shaft, prevent the pin shaft from sliding with the inner stay 116, and prevent the inner surface of the pin shaft from being scratched.
Further, guide cone heads 120 are fixed at the lower ends of the four inner stays 116;
The guide cone 120 plays a guiding role, so that the lower end of the pin shaft can be prevented from colliding with the outer surface of the piston during assembly, and the pin shaft and the piston are prevented from being damaged.
Further, the pin hole concentric adjusting mechanism comprises a second lifting electric cylinder 201 arranged at the other end of the lower side of the transposition slide plate 6, a rotating motor 202 is arranged at the telescopic end of the second lifting electric cylinder 201, a second cylindrical shell 203 is fixed at the driving end of the rotating motor 202, three straight slide grooves 206 which are arranged in a circumferential manner are formed in the lower end of the second cylindrical shell 203, a slide groove guide rod 207 is fixed at the inner side of each straight slide groove 206, a slide block 208 is sleeved on the outer side of each slide groove guide rod 207 in a sliding manner, an air cylinder connecting rod 205 is rotatably connected to the upper end of each slide block 208, a second air cylinder 204 is arranged at the upper end of the inner side of the second cylindrical shell 203, an oil storage shell 209 is rotatably connected to the telescopic end of the second air cylinder 204, hollow columns 210 are fixedly inserted at the lower ends of the three oil storage shells 209, a rotating sleeve 211 is sleeved on the outer side of each hollow column 210 in a rotating manner, an air cylinder coating mechanism is arranged between the rotating sleeve 211 and the hollow columns 210 and the oil storage shells 209, and a second electric lifting controller 201 is electrically connected to the second air cylinder 204;
Through the concentric adjustment mechanism of pinhole, can make the pinhole of connecting rod and the pinhole of piston be in concentric state, make things convenient for the round pin axle to insert the pinhole inboard smoothly, realize fast assembly, prevent to produce the skew between two pinholes and lead to the round pin axle to produce collision or extrusion with the border of pinhole to lead to round pin axle and pinhole inner wall to produce the scratch.
Further, the lubricating oil smearing mechanism comprises a pressing oil plate 215 which is slidably connected to the inner side of the oil storage shell 209, an oil injection pipe orifice 216 which is inserted and installed at one side of the oil storage shell 209, a plurality of oil outlet small holes 212 which are arranged in a circumferential manner and are arranged at the outer side of the rotating sleeve 211, and a plurality of hollow column long strip holes 213 which are arranged at one side of the outer part of the hollow column 210 and are arranged at equal intervals, wherein the upper end of the pressing oil plate 215 is connected with a pressure spring 214, the upper end of the pressure spring 214 is connected with the upper end of the inner side of the oil storage shell 209, and each hollow column long strip hole 213 is aligned with the oil outlet small hole 212 with the same height;
through lubricating oil smearing mechanism, can make lubricating oil evenly adhere in the pinhole inner wall of piston and connecting rod, can increase the lubrication degree when inserting the round pin axle, further avoid causing the scratch to the round pin downthehole wall and round pin axle surface, guaranteed that the pressure distribution between round pin axle and the pinhole is even, improve the equipment precision.
Further, isolation rings 217 are fixed between the adjacent oil outlet holes 212 on the outer side of the rotating sleeve 211;
the spacer 217 prevents the extruded lubricant from dripping downward, so that the lubricant can be sufficiently adhered to the inner wall of the pin hole, the lubrication degree between the pin hole and the pin shaft is improved, and the assembly is convenient.
Further, the piston fixing mechanism comprises two vertical plates 301 fixed on the upper side of the platen 1 and a third air cylinder 307 installed on the upper side of the platen 1 and located between the two vertical plates 301, the upper ends of the two vertical plates 301 are both fixed with fixing sleeves 302, the inner sides of the two fixing sleeves 302 are both connected with rotating shafts 303 in a penetrating and rotating mode, one sides of the two rotating shafts 303 are located at two end positions and are both symmetrically fixed with two rotating arms 304, one ends of the two rotating arms 304 located at the same side are both fixed with piston compression rods 305, the other sides of the two rotating shafts 303 are located at middle section positions and are both fixed with push-pull rods 306 extending to the outer sides of the fixing sleeves 302, one ends of the two push-pull rods 306 are both connected with sliding shafts 310 in a rotating mode, the telescopic ends of the third air cylinder 307 are fixed with sliding groove plates 308, two sliding pin grooves 309 are formed in two ends of the sliding groove plates 308, the two sliding shafts 310 are respectively connected with the inner sides of the two sliding pin grooves 309 in a sliding mode, and the third air cylinder 307 is electrically connected with the controller 3;
the piston is fixed through the piston fixing mechanism, so that the piston is prevented from deviating, the pin shaft is smoothly inserted into the inner sides of pin holes of the piston and the connecting rod, and the pin shaft is prevented from being deformed due to collision between the piston and the connecting rod.
Further, the connecting rod fixing mechanism comprises two supporting guide posts 401 fixed at one end of the upper side of the bedplate 1, the outer sides of the two supporting guide posts 401 are connected with a transverse sliding plate 402 in a sliding manner, a portal 403 is fixed on the upper side of the transverse sliding plate 402, a fourth air cylinder 404 is mounted on the upper side of the portal 403, a connecting rod pressing plate 405 is fixed at the telescopic end of the fourth air cylinder 404, and the fourth air cylinder 404 is electrically connected with the controller 3;
When the pin shafts of the piston and the connecting rod are adjusted to be in a concentric state, the telescopic end of the fourth cylinder 404 is controlled to extend out to drive the connecting rod pressing plate 405 to move downwards, the connecting rod pressing plate 405 can press the connecting rod on the upper side of the transverse sliding plate 402 to fix the connecting rod, and the connecting rod is prevented from moving, so that the pin holes of the connecting rod and the piston are always in a concentric state.
Working principle: when the piston fixing device is used, the piston is fixed through the piston fixing mechanism, the piston is placed on the upper sides of the two fixing sleeves 302, the telescopic end of the third air cylinder 307 is controlled by the controller 3 to retract to drive the sliding groove plate 308 to move downwards, the sliding groove plate 308 moves downwards to drive the two push-pull rods 306 to reversely rotate through sliding connection cooperation between the sliding pin grooves 309 and the sliding shafts 310, the two push-pull rods 306 drive the two rotating shafts 303 to reversely rotate, the two rotating shafts 303 respectively drive the four rotating arms 304 to reversely rotate, the four rotating arms 304 are combined, the two piston pressing rods 305 are driven to be combined, the two piston pressing rods 305 are pressed on the outer sides of the piston, the piston can be fixed, the stability of the piston is improved, a pin shaft can be conveniently and smoothly inserted into a pin hole of the piston, then the connecting rod is horizontally arranged on the upper side of the transverse sliding plate 402 of the connecting rod fixing mechanism, the connecting rod is driven to horizontally move through sliding the transverse sliding plate 402, and the pin hole at one end of the connecting rod is aligned with the pin hole of the piston;
Then, the transposition motor 4 of the reversing mechanism is controlled by the controller 3 to operate so as to drive the transposition screw rod 5 to rotate, the transposition screw rod 5 is controlled to rotate so as to drive the transposition slide plate 6 to move through threads, the transposition slide plate 6 is controlled to drive the lower pin hole concentric adjusting mechanism and the pin shaft mounting mechanism to move, the pin hole concentric adjusting mechanism is firstly moved to a position right above a piston pin hole, as shown in an attached figure 3 of the specification, then the telescopic end of the second lifting electric cylinder 201 is controlled to extend so as to drive the rotating motor 202 to move downwards, the rotating motor 202 drives the second cylindrical shell 203 to move downwards, three rotating sleeves 211 below the rotating motor drive the second cylindrical shell to extend into the pin hole of the piston and the connecting rod, then the telescopic end of the second cylinder 204 is controlled to extend so as to drive the cylinder connecting rod 205 to rotate, the three cylinder connecting rods 205 push the three sliding blocks 208 to slide along the inner sides of the three straight sliding grooves 206, so that the three sliding blocks 208 are separated, the three hollow columns 210 are driven to be separated from the three rotating sleeves 211 to be attached to the inner sides of the pin holes of the piston and the connecting rod, the pin hole and the pin hole of the piston are in a concentric state, the pin hole is convenient for the pin shaft to insert into the inner side of the pin hole, and the pin hole of the pin shaft is difficult to be inserted into the pin hole, and the pin hole is difficult to be offset to be caused to be inserted into the pin hole inside;
When the two pinholes are concentric, the rotating motor 202 is controlled to operate so as to drive the second cylindrical shell 203 to rotate, the second cylindrical shell 203 drives the three sliding blocks 208 to rotate, so that the rotating sleeve 211 and the hollow column 210 are driven to rotate around the axial lead of the second cylindrical shell 203, the three rotating sleeves 211 can roll along the inner wall of the pinholes while being propped against the inner wall of the pinholes, as the lubricating oil is injected into the inner side of the oil storage shell 209 through the oil injection pipe orifice 216, the pressure spring 214 can release elasticity to push the oil pressing plate 215 to move downwards, the oil pressing plate 215 moves downwards so as to press the lubricating oil in the oil storage shell 209 into the inner side of the hollow column 210, the lubricating oil in the hollow column 210 can uniformly infiltrate into the inner side of each hollow column strip hole 213, and as the rotating sleeve 211 continuously rotates, when the oil outlet holes 212 at the outer sides of the rotating sleeves 211 are aligned with the hollow column strip holes 213, the lubricating oil in the hollow column strip holes 213 can flow out through the oil outlet holes 212, so that the lubricating oil can uniformly adhere to the inner walls of the pinholes of the pistons and the connecting rods, the lubricating degree can be increased when the pin is inserted into the pin shafts, and scratches on the inner walls and the outer surfaces of the pinholes can be prevented;
When the pin shafts of the piston and the connecting rod are adjusted to be in a concentric state, the telescopic end of the fourth cylinder 404 is controlled to extend out to drive the connecting rod pressing plate 405 to move downwards, the connecting rod pressing plate 405 can press the connecting rod on the upper side of the transverse sliding plate 402 to fix the connecting rod, and the connecting rod is prevented from moving, so that the pin holes of the connecting rod and the piston are always in a concentric state;
The pin shafts to be inserted are arranged on the outer sides of four inner support bars 116 of the pin shaft mounting mechanism, the telescopic ends of a first cylinder 103 of the pin shaft mounting mechanism are controlled by a controller 3 to extend to drive four roller frames 104 to move downwards, the four roller frames 104 drive four drag reduction rollers 105 to move downwards, the four drag reduction rollers 105 are respectively connected with the outer sides of four inclined planes 110 in a rolling way, and apply horizontal thrust to the inclined planes 110, so that four push blocks 109 and four connecting plates 107 can be driven to move outwards, return springs 108 are compressed, the four connecting plates 107 move outwards, the four inner support bars 116 are respectively driven to move outwards through L-shaped pull rods 115, the four inner support bars 116 can be abutted against the inner sides of the pin shafts to fix the pin shafts, so that the pin shafts are conveniently inserted into the inner sides of pin holes, the contact area between the four inner support bars 116 and the inner sides of the pin shafts is larger, deformation and bending of the pin shafts can be prevented, and when the four drag reduction rollers 105 continuously move downwards until being separated from the inclined planes 110, the drag reduction rollers 105 are in rolling connection with the side surfaces of the push blocks 109 at the moment, the four connecting plates 107 and the inner support bars 116 stop moving outwards, and the four inner support bars 116 move inwards to the limit positions, and the pin shafts 116 are applied inwards;
At this time, when the telescopic end of the first cylinder 103 is abutted against the piston push rod 114 of the adsorption mechanism, the piston plate 112 can be pushed to move downwards, the piston spring 113 is compressed, the upper end space of the air extraction piston cylinder 111 is increased, air in the four main air passages 117 and the plurality of branch air passages 118 in the four inner support bars 116 is sucked into the air extraction piston cylinder 111, and negative pressure is formed in the inner sides of the main air passages 117 and the branch air passages 118, so that certain suction force is generated between the four inner support bars 116 and the inner wall of the pin shaft, the fixing firmness between the pin shaft and the four inner support bars 116 is further improved, sliding between the pin shaft and the inner support bars 116 is prevented, scratch is avoided on the inner surface of the pin shaft, meanwhile, the pin shaft is conveniently inserted into the inner side of the pin hole smoothly, and the assembly efficiency is improved;
After the pin shaft is fixed, the telescopic end of the first lifting electric cylinder 101 is controlled to extend out to drive the first cylindrical shell 102 and the pin shaft fixed below to vertically move downwards, the pin shaft is vertically inserted into the pin holes of the piston and the connecting rod, the assembly operation of the piston connecting rod is realized, the pin shaft is kept to move downwards in a vertical state, collision and friction between the pin shaft and the inner wall of the pin hole can be effectively avoided, and the assembly precision is improved.
The previous description is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides an automobile engine piston connecting rod assembly device, includes platen (1), the upside one end of platen (1) is fixed with roof-rack (2), controller (3) are installed to one side of roof-rack (2), its characterized in that still includes:
The transposition mechanism comprises a large chute arranged at the upper end of the top frame (2) and a transposition motor (4) arranged at one end of the top frame (2), wherein the inner side of the large chute is connected with a transposition slide plate (6) in a sliding manner, the inner side of the large chute is connected with a transposition screw rod (5) in a penetrating and rotating manner, the transposition screw rod (5) is connected to the inside of the transposition slide plate (6) in a penetrating and rotating manner through threads, the driving end of the transposition motor (4) is fixedly connected with one end of the transposition screw rod (5), the transposition motor (4) is electrically connected with the controller (3), and two ends of the lower side of the transposition slide plate (6) are respectively provided with a pin hole concentric adjusting mechanism and a pin shaft installing mechanism;
the piston fixing mechanism is arranged on the upper side of the bedplate (1) and positioned at the middle section position;
the connecting rod fixing mechanism is arranged on the upper side of the bedplate (1) and positioned at one end;
The pin hole concentric adjusting mechanism comprises a second lifting electric cylinder (201) arranged at the other end of the lower side of a transposition slide plate (6), a rotating motor (202) is arranged at the telescopic end of the second lifting electric cylinder (201), a second cylindrical shell (203) is fixed at the driving end of the rotating motor (202), three circumferentially arranged straight sliding grooves (206) are formed in the lower end of the second cylindrical shell (203), a sliding groove guide rod (207) is fixed at the inner side of each straight sliding groove (206), sliding blocks (208) are sleeved on the outer side of each sliding groove guide rod (207) in a sliding mode, air cylinder connecting rods (205) are rotatably connected at the upper ends of the sliding blocks (208), a second air cylinder (204) is arranged at the upper end of the inner side of the second cylindrical shell (203), oil storage shells (209) are rotatably connected with the upper ends of the plurality of air cylinder connecting rods (205), hollow sleeves (210) are rotatably connected at the lower ends of the three sliding blocks (208), hollow sleeves (210) are rotatably sleeved on the outer sides of the hollow sleeves (211) and are rotatably sleeved on the hollow sleeves (211), the second lifting electric cylinder (201) and the second air cylinder (204) are electrically connected with the controller (3);
The lubricating oil smearing mechanism comprises a pressing oil plate (215) which is connected to the inner side of an oil storage shell (209) in a sliding mode, an oil injection pipe orifice (216) which is inserted and installed on one side of the oil storage shell (209), a plurality of oil outlet small holes (212) which are arranged in a circumferential mode and are arranged on the outer side of a rotating sleeve (211), and a plurality of hollow column long holes (213) which are arranged at equal intervals and are arranged on one side of the outer portion of a hollow column (210), wherein the upper end of the pressing oil plate (215) is connected with a pressure spring (214), the upper end of the pressure spring (214) is connected with the upper end of the inner side of the oil storage shell (209), and each hollow column long hole (213) is aligned with the oil outlet small holes (212) with the same height;
And isolating rings (217) are fixed between the adjacent oil outlet holes (212) on the outer side of the rotating sleeve (211).
2. The automotive engine piston rod assembly of claim 1, wherein: the pin shaft mounting mechanism comprises a first lifting electric cylinder (101) arranged at one end of the lower side of a transposition slide plate (6), a first cylindrical shell (102) is fixed at the telescopic end of the first lifting electric cylinder (101), a first cylinder (103) is arranged at the upper end of the inner side of the first cylindrical shell (102), eight transverse guide rods (106) which are circumferentially arranged are slidably inserted in the outer side of the first cylindrical shell (102), connecting plates (107) are fixed at one ends of the two transverse guide rods (106) which are positioned at the same side, one side of each of the four connecting plates (107) is elastically connected with the inner side of the first cylindrical shell (102) through a return spring (108), pushing blocks (109) are fixed at the other side of each of the four connecting plates (107), inclined planes (110) are arranged at one ends of each of the four pushing blocks (109), L-shaped pull rods (115) are fixed at the lower ends of each of the four connecting plates (107), a connecting plate (116) is fixed at one end of each of the four connecting plates (116), a roller frame (104) is connected with each roller frame (104) in a corresponding position, the first lifting electric cylinder (101) and the first air cylinder (103) are electrically connected with the controller (3).
3. The automotive engine piston rod assembly of claim 2, wherein: the adsorption mechanism comprises an air extraction piston cylinder (111) fixed at the inner lower end of a first cylindrical shell (102), a main air passage (117) and a plurality of branch air passages (118) which are arranged in four inner supporting bars (116), wherein the branch air passages (118) are all communicated with the inner part of the main air passage (117), a piston plate (112) is connected with the inner side of the air extraction piston cylinder (111) in a sliding manner, a piston push rod (114) extending to the outer part of the air extraction piston cylinder (111) is fixed at the upper end of the piston plate (112), the lower end of the piston plate (112) is elastically connected with the inner lower end of the air extraction piston cylinder (111) through a piston spring (113), and the upper ends of the four main air passages (117) are all communicated with the upper end space of the air extraction piston cylinder (111) through soft air pipes.
4. A piston rod assembly device for an automotive engine according to claim 3, characterized in that: the sections of the four inner stays (116) are arc-shaped, and rubber gaskets (119) are arranged on the outer sides of the four inner stays (116).
5. The automotive engine piston rod assembly of claim 4, wherein: the lower ends of the four inner stays (116) are respectively fixed with a guide cone head (120).
6. The automotive engine piston rod assembly of claim 1, wherein: the piston fixing mechanism comprises two vertical plates (301) fixed on the upper side of the bedplate (1) and a third air cylinder (307) installed on the upper side of the bedplate (1) and located at a position between the two vertical plates (301), wherein a fixing sleeve (302) is fixed at the upper end of each vertical plate (301), a rotating shaft (303) is connected to the inner side of each fixing sleeve (302) in a penetrating and rotating mode, two rotating arms (304) are symmetrically fixed at two end positions of one side of each rotating shaft (303), piston compression rods (305) are fixed at one end of each rotating arm (304) located on the same side, push-pull rods (306) extending to the outer side of each fixing sleeve (302) are fixed at the position of the middle section of the other side of each rotating shaft (303), sliding shafts (310) are connected to one end of each push-pull rod (306) in a rotating mode, sliding groove plates (308) are fixed at the telescopic ends of each third air cylinder (307), two sliding grooves (309) are formed in two ends of each sliding groove plate (308), and two sliding pins (309) are electrically connected to the two sliding shafts (307) and the three air cylinders (307) in an electric mode.
7. The automotive engine piston rod assembly of claim 1, wherein: the connecting rod fixing mechanism comprises two supporting guide posts (401) fixed at one end of the upper side of the bedplate (1), the outer sides of the two supporting guide posts (401) are connected with a transverse sliding plate (402) in a sliding mode, a portal frame (403) is fixed on the upper side of the transverse sliding plate (402), a fourth air cylinder (404) is installed on the upper side of the portal frame (403), a connecting rod pressing plate (405) is fixed at the telescopic end of the fourth air cylinder (404), and the fourth air cylinder (404) is electrically connected with the controller (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311534973.9A CN117381390B (en) | 2023-11-17 | 2023-11-17 | Automobile engine piston connecting rod assembly device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311534973.9A CN117381390B (en) | 2023-11-17 | 2023-11-17 | Automobile engine piston connecting rod assembly device |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114310985A (en) * | 2021-12-31 | 2022-04-12 | 太仓联科工业设计有限公司 | Automatic internal supporting type flexible gripper for hardware instruments |
| CN115958399A (en) * | 2022-11-17 | 2023-04-14 | 浙江博秦精密工业有限公司 | Circular centering device and process for automobile precision metal part |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101877314B1 (en) * | 2016-03-09 | 2018-07-11 | (주)삼호정기 | Piston pin assembly system with snap ring assembly device and horizontal position and arrangement device for piston pallet |
| CN106425415B (en) * | 2016-11-23 | 2018-05-04 | 安徽江淮汽车集团股份有限公司 | A kind of press fitting of piston pin device |
| CN107378017B (en) * | 2017-09-04 | 2018-11-09 | 武汉共康汽车零部件有限公司 | Three pin shaft fork spherical floating fixtures |
| CN111975027A (en) * | 2020-09-14 | 2020-11-24 | 江苏沃得家俬有限公司 | Internal support chuck device |
| CN114310982A (en) * | 2021-12-28 | 2022-04-12 | 盐城工学院 | Novel holding type end effector structure |
| CN116852102A (en) * | 2023-08-04 | 2023-10-10 | 徐州通盈建筑科技有限公司 | Automatic equipment of air compressor machine piston connecting rod |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114310985A (en) * | 2021-12-31 | 2022-04-12 | 太仓联科工业设计有限公司 | Automatic internal supporting type flexible gripper for hardware instruments |
| CN115958399A (en) * | 2022-11-17 | 2023-04-14 | 浙江博秦精密工业有限公司 | Circular centering device and process for automobile precision metal part |
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