CN109991010B - Automatic system and detection method for detecting rotation of engine crankshaft - Google Patents
Automatic system and detection method for detecting rotation of engine crankshaft Download PDFInfo
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- CN109991010B CN109991010B CN201910364549.1A CN201910364549A CN109991010B CN 109991010 B CN109991010 B CN 109991010B CN 201910364549 A CN201910364549 A CN 201910364549A CN 109991010 B CN109991010 B CN 109991010B
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- 238000001514 detection method Methods 0.000 title claims abstract description 42
- 238000001125 extrusion Methods 0.000 claims abstract description 84
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 48
- 239000002184 metal Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
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- 238000000429 assembly Methods 0.000 claims description 6
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
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Abstract
The invention discloses an automatic system and a detection method for detecting rotation of an engine crankshaft, wherein the automatic system comprises an engine cylinder body stabilizing tray, a cylinder body automatic positioning assembly, a crankshaft automatic rotating assembly and a control circuit; a plurality of cylinder tightening positioning holes are formed in a bottom plate of the engine cylinder stabilizing tray; the automatic cylinder positioning assembly comprises a cylinder positioning table, a positioning table inner cavity is formed in the cylinder positioning table, a limiting plate longitudinal groove is formed in the left side of the upper plate surface of the cylinder positioning table, a telescopic extrusion plate longitudinal groove and a telescopic extrusion plate moving transverse groove are formed in the right side of the upper plate surface of the cylinder positioning table, and tray baffles are respectively arranged on the front side and the rear side of the cylinder positioning table; the invention is used for carrying out the related detection of the rotation of the engine crankshaft and has the advantages of high automatic control degree, high working efficiency, good use effect, accurate and reliable detection data and the like.
Description
Technical Field
The invention relates to the technical field of engine detection, in particular to an automatic system and a detection method for detecting rotation of an engine crankshaft.
Background
At present, when an engine is installed on a production line, various performances of the engine crankshaft are required to be measured by rotating, the engine crankshaft can only rotate manually at present, and a large amount of manpower is required to be consumed for adjustment during positioning, so that the working strength is high, the working efficiency is low, the error of manual rotation detection data is large, the current automatic and high-efficiency production requirements cannot be met, meanwhile, the traditional operation method is adopted, the labor cost is high, the operation efficiency is low, the operation procedure is easily influenced by the considered operation error, the stability of the detection data is low, and the accuracy is low.
The foregoing background is only for the purpose of facilitating an understanding of the principles and concepts of the invention and is not necessarily in the prior art to the present application and is not intended to be used as an admission that such background is not entitled to antedate such novelty and creativity by the present application without undue evidence prior to the present application.
Disclosure of Invention
The invention provides an automatic system and a method thereof, which are suitable for detecting the rotation of an engine crankshaft, and have the advantages of high automatic control degree, high working efficiency and good use effect.
In order to achieve the above purpose, the invention adopts the following technical scheme:
an automatic system for detecting the rotation of an engine crankshaft comprises an upstream conveying roller way, a downstream conveying roller way, an engine cylinder stabilizing tray, a cylinder automatic positioning assembly, a crankshaft automatic rotating assembly and a control circuit; the cylinder body automatic positioning components are correspondingly distributed between the upstream conveying roller way and the downstream conveying roller way; the crankshaft automatic rotating assembly is correspondingly distributed at the front side of the cylinder body automatic positioning assembly; a plurality of cylinder tightening positioning holes are formed in a bottom plate of the engine cylinder stabilizing tray; the automatic cylinder positioning assembly comprises a cylinder positioning table, a positioning table inner cavity is formed in the cylinder positioning table, a limiting plate longitudinal groove is formed in the left side of the upper plate surface of the cylinder positioning table, a telescopic extrusion plate longitudinal groove and a telescopic extrusion plate moving transverse groove are formed in the right side of the upper plate surface of the cylinder positioning table, and tray baffles are respectively arranged on the front side and the rear side of the cylinder positioning table;
the inner cavity of the positioning table is distributed with a limiting plate telescopic assembly and a telescopic extrusion plate moving assembly; the limiting plate telescopic assemblies are correspondingly distributed below the limiting plate longitudinal grooves; the telescopic extrusion plate moving assemblies are correspondingly distributed below the telescopic extrusion plate longitudinal grooves and the telescopic extrusion plate moving transverse grooves;
the limiting plate telescopic assembly comprises an extrusion sliding member and a limiting plate hydraulic cylinder; the extrusion sliding component comprises a supporting base, a transverse sliding rod, a sliding extrusion block and a spring; the transverse sliding rod is combined on the supporting base; the sliding extrusion block is matched with the transverse sliding rod, provided with a sliding groove and can be sleeved on the transverse sliding rod in a sliding way; the spring is sleeved on the transverse sliding rod and is distributed behind the sliding extrusion block; the telescopic rod of the limiting plate hydraulic cylinder is combined below the supporting base;
the telescopic extrusion plate moving assembly comprises a telescopic moving hydraulic cylinder, a pushing hydraulic cylinder, a telescopic bracket, a moving limiting rod, a moving return spring and the extrusion sliding component; a limiting rod sliding groove is formed in the telescopic bracket along the vertical direction; the upper end of the telescopic bracket is combined with the supporting base of the extrusion sliding component, and the lower end of the telescopic bracket is combined with the telescopic rod of the telescopic moving hydraulic cylinder; the telescopic movable hydraulic cylinder is movably connected with the bottom plate of the inner cavity of the positioning table; the pushing hydraulic cylinder is combined on the right side plate of the inner cavity of the positioning table, and the telescopic rods of the pushing hydraulic cylinder are correspondingly distributed on the right side of the telescopic bracket; the movable limiting rods are transversely distributed in the inner cavity of the positioning table and penetrate through the sliding grooves of the limiting rods; the movable reset spring is sleeved on the movable limiting rod and correspondingly distributed on the left side of the telescopic bracket to extrude the telescopic bracket;
the crankshaft automatic rotating assembly comprises a rotating device fixing plate, a sliding rail is arranged on the lower plate surface of the rotating device fixing plate, and a rotating machine frame is slidably distributed on the sliding rail; the rotating machine frame is provided with a rotating motor and a crankshaft connector, and the rotating motor provides rotating power for the crankshaft connector; the telescopic cylinders are distributed at the rear of the rotating machine frame and are fixedly connected with the rotating device fixing plate through cylinder positioning blocks; and a telescopic rod of the telescopic cylinder is connected with the rear end of the rotating machine frame.
Furthermore, the telescopic bracket is approximately U-shaped, and the two side plates of the telescopic bracket are provided with the limit rod sliding grooves; two movable transverse grooves of the telescopic extrusion plate are formed in the cylinder body positioning table corresponding to the telescopic bracket; each telescopic extrusion plate moving transverse groove and each telescopic extrusion plate longitudinal groove form a nearly T shape.
Further, the telescopic extrusion plate moving assembly further comprises a spring extrusion block, wherein the spring extrusion block is sleeved on the moving limiting rod and is distributed between the moving reset spring and the telescopic bracket.
Furthermore, the bottom plate of the inner cavity of the positioning table is correspondingly provided with a sliding groove of the telescopic moving hydraulic cylinder, and the telescopic moving hydraulic cylinder can be slidably distributed in the sliding groove of the telescopic moving hydraulic cylinder.
Further, the hydraulic cylinder body stabilizing and stretching device also comprises a cylinder body stabilizing and stretching assembly, wherein the cylinder body stabilizing and stretching assembly comprises a stabilizing hydraulic cylinder and a stabilizing and stretching device; the stable telescopic device comprises a stable sliding rod, a movable inserted rod, a stable piezoresistor and an inserted rod spring; the middle rear part of the movable inserted link is provided with a stable sliding link movable groove; the movable groove of the stable sliding rod is approximately T-shaped in cross section; the front part of the stable sliding rod is correspondingly provided with a convex round table; the front part of the stable sliding rod is inserted into the movable groove of the stable sliding rod to be distributed; the inserted bar spring is sleeved on the stable sliding bar and distributed behind the movable inserted bar, and extrudes the movable inserted bar; the stable piezoresistor is sleeved on the stable sliding rod and is distributed between the inserted rod spring and the movable inserted rod; the front end of the telescopic rod of the stable hydraulic cylinder is combined with the rear end of the stable sliding rod; the top of the tray baffle plate at the rear side of the cylinder body positioning table is also provided with a supporting table, and the stable hydraulic cylinder is fixed on the supporting table.
Further, the side section of the stable tray of the engine cylinder body is approximately L-shaped, and a plug rod socket is formed in the side panel of the stable tray of the engine cylinder body corresponding to the movable plug rod.
Further, the rotating mechanism frame is distributed on the sliding rail through four linear sliding bearings.
Further, the crankshaft automatic rotating assembly further comprises a connecting rod and a telescopic fixed rod; the rear end of the connecting rod is connected with a power output shaft of the rotating motor; the front end of the telescopic fixed rod is connected with the crankshaft connector, and a rectangular telescopic groove is formed in the rear part of the telescopic fixed rod; the front part of the connecting rod corresponds to the rectangular telescopic groove and is inserted into the rectangular telescopic groove to be connected in a telescopic way, the front part of the connecting rod is correspondingly provided with a telescopic spring, and the front end of the telescopic spring is contacted with the rear end of the telescopic fixed rod; a metal sensor is arranged above the front part of the connecting rod; the control circuit is connected with the metal sensor, the rotating motor and the telescopic cylinder.
Further, the crankshaft connector is detachably connected with the telescopic fixed rod through a spring plunger; the rotating motor is a servo motor.
A method for engine crankshaft rotation detection using the automated system for engine crankshaft rotation detection, comprising the steps of:
(1) Using the assembled automatic system, using a locating pin to tighten the engine cylinder to be detected onto the engine cylinder stabilizing tray;
(2) Starting a limiting plate hydraulic cylinder of the limiting plate telescopic assembly to enable the limiting plate hydraulic cylinder to extrude the sliding member to rise to the highest position;
(3) When the stable tray of the engine cylinder body moves to a cylinder body positioning table, starting the telescopic moving hydraulic cylinder to push the telescopic bracket and the extrusion sliding component on the telescopic bracket to rise to the highest position; then starting the pushing hydraulic cylinder, pushing the telescopic bracket leftwards, pushing the stable tray of the engine cylinder body to the extrusion sliding component at the telescopic component of the limiting plate, stopping the pushing hydraulic cylinder, and jointly stably extruding the stable tray of the engine cylinder body by the extrusion sliding components at the left side and the right side, so that the left and right positioning of the stable tray of the engine cylinder body is completed;
(4) Starting a telescopic cylinder of the crankshaft automatic rotating assembly, wherein the telescopic cylinder pushes the rotating mechanism frame to move, and after the crankshaft connector is inserted into a crankshaft of an engine cylinder, the telescopic cylinder pushes a stable tray of the engine cylinder to move backwards to a tray baffle plate at the rear side of the cylinder positioning table; meanwhile, a telescopic fixed rod of the crankshaft automatic rotating assembly is compressed, and is monitored when the telescopic fixed rod is retracted to the lower part of the metal sensor, so that the telescopic cylinder is controlled to stop pushing; and (5) positioning is completed.
(5) Simultaneously, the cylinder body stabilizing telescopic assembly is started, the stabilizing hydraulic cylinder is started, the stabilizing telescopic device is pushed to extend out and insert into the inserted rod inserting opening, when the movable inserted rod is completely inserted into the inserted rod inserting opening, the stabilizing hydraulic cylinder continues to push, the inserted rod spring is compressed, the pressure is fed back to the stabilizing piezoresistor, the stabilizing hydraulic cylinder is closed when the pressure reaches a set value, and the movable inserted rod is enabled to keep enough extrusion force on a stabilizing tray of the engine cylinder body;
(6) Starting a rotating motor/servo motor of the automatic crankshaft rotating assembly to start relevant rotation detection of the crankshaft;
(7) After parameter detection is completed, the crankshaft connector and the stable telescopic device retract; and controlling the extrusion sliding component in the limiting plate telescopic component to be contracted to the lowest position, then starting the pushing hydraulic cylinder to push the engine cylinder body to the left, and pushing the stable tray of the engine cylinder body to the downstream conveying roller way to finish the automatic positioning and rotation detection operation.
Compared with the prior art, the invention has the beneficial effects that: the invention can realize automatic positioning and automatic rotation detection of the cylinder crankshaft; the automatic positioning assembly of the cylinder body can automatically position the engine cylinder body, the automatic positioning effect is accurate, and the repeatability effect is good, so that the automatic connection of the crankshaft connector to the crankshaft is realized; the automatic pushing-out of the engine cylinder body on the cylinder body positioning table is realized; in the process of crankshaft rotation detection, the cylinder body stable telescopic assembly can improve the stability of the whole cylinder body and the detection accuracy; the device has the advantages that the crankshaft connector can be quickly replaced aiming at crankshafts of different types, the operation is simple and convenient, the whole structure of the device is stable, and the data is accurate and reliable when the servo motor is used for matching relevant index detection; by adopting the method for automatic positioning and crankshaft rotation detection, time and labor are saved, one person can efficiently complete the detection, and the method has the advantages of standard detection, accurate and reliable data and good repeatability.
Drawings
FIG. 1 is an assembled top view of the present invention;
FIG. 2 is a schematic view of the structure of the automatic crankshaft rotation assembly of the present invention;
FIG. 3 is a side view of the automatic crankshaft rotation assembly of the present invention;
FIG. 4 is a schematic view of the assembled structure of the connecting rod, telescopic fixed rod and crankshaft connector of the crankshaft automatic rotating assembly of the present invention;
FIG. 5 is a structural view of the cylinder positioning stage of the present invention;
FIG. 6 is a schematic diagram of the assembled structure of the positioning table fixing bracket, the cylinder positioning table and the cylinder stabilizing and telescoping assembly of the invention;
FIG. 7 is a structural view of the stability retractor of the invention;
fig. 8 is a schematic structural view of the engine block securing tray of the present invention.
Detailed Description
As shown in fig. 1 to 8, an automatic system for detecting rotation of an engine crankshaft comprises an upstream conveying roller way 29-1, a downstream conveying roller way 29-2, an engine cylinder stabilizing tray 28, a cylinder automatic positioning assembly, a crankshaft automatic rotating assembly and a control circuit; the cylinder body automatic positioning components are correspondingly distributed between the upstream conveying roller way 29-1 and the downstream conveying roller way 29-2; the crankshaft automatic rotating assembly is correspondingly distributed at the front side of the cylinder body automatic positioning assembly; a plurality of cylinder tightening positioning holes 28-1 are formed in the bottom plate of the engine cylinder stabilizing tray 28; the side section of the engine block stabilizing tray 28 of this embodiment is in a shape like an L, and two inserted rod sockets 28-2 are formed on the side panel thereof.
The automatic cylinder positioning assembly comprises a cylinder positioning table 13, a positioning table inner cavity 13-1 is formed in the cylinder positioning table 13, a limiting plate longitudinal groove 13-6 is formed in the left side of an upper plate surface 13-3 of the cylinder positioning table, a telescopic extrusion plate longitudinal groove 13-4 and a telescopic extrusion plate moving transverse groove 13-5 are formed in the right side of the upper plate surface of the cylinder positioning table, and a tray baffle 21 and a tray baffle 22 are respectively arranged on the front side and the rear side of the cylinder positioning table; the inner cavity 13-1 of the positioning table is distributed with a limiting plate telescopic assembly and a telescopic extrusion plate moving assembly; the limiting plate telescopic assemblies are correspondingly distributed below the limiting plate longitudinal grooves; the telescopic extrusion plate moving assemblies are correspondingly distributed below the telescopic extrusion plate longitudinal grooves and the telescopic extrusion plate moving transverse grooves;
the limiting plate telescopic assembly comprises an extrusion sliding member 19 and a limiting plate hydraulic cylinder 18; the extrusion sliding member 19 includes a support base 19-1, a lateral sliding rod 19-2, a sliding extrusion block 19-3, and a spring 19-4; the transverse sliding rod 19-2 is combined on the supporting base; the sliding extrusion block is matched with the transverse sliding rod 19-2, provided with a sliding groove, and can be sleeved on the transverse sliding rod 19-2 in a sliding way; the spring is sleeved on the transverse sliding rod 19-2 and is distributed behind the sliding extrusion block 19-3; the telescopic rod of the limiting plate hydraulic cylinder 18 is combined below the supporting base 19-1;
the telescopic extrusion plate moving assembly comprises a telescopic moving hydraulic cylinder 15, a pushing hydraulic cylinder 14, a telescopic bracket 20, a moving limiting rod 16, a moving return spring 17, a spring extrusion block 16-1 and an extrusion sliding member 19; the telescopic bracket 20 is approximately U-shaped, and limit rod sliding grooves 20-1 are formed in two side plates of the telescopic bracket along the vertical direction; two movable transverse grooves 13-5 of the telescopic extrusion plate are arranged on the cylinder body positioning table 13 corresponding to the telescopic bracket 20; each telescopic extrusion plate moving transverse groove and each telescopic extrusion plate longitudinal groove form a nearly T shape.
The upper end of the telescopic bracket 20 is combined with the supporting base of the extrusion sliding member 19, and the lower end of the telescopic bracket is combined with the telescopic rod of the telescopic moving hydraulic cylinder 15; the bottom plate of the inner cavity 13-1 of the positioning table is correspondingly provided with a telescopic moving hydraulic cylinder chute 13-2, and the telescopic moving hydraulic cylinder 15 is slidably distributed in the telescopic moving hydraulic cylinder chute 13-2 and is movably connected with the bottom plate of the inner cavity of the positioning table; the pushing hydraulic cylinder 14 is combined on the right side plate of the inner cavity of the positioning table, and telescopic rods of the pushing hydraulic cylinder are correspondingly distributed on the right side of the telescopic bracket 20 to provide horizontal pushing force for the movement of the telescopic bracket 20; the movable limiting rods are transversely distributed in the inner cavity of the positioning table and penetrate through the limiting rod sliding grooves 20-1; the movable return spring 17 is sleeved on the movable limiting rod 16 and correspondingly distributed on the left side of the telescopic bracket 20, and the spring extrusion block 16-1 in the embodiment is sleeved on the movable limiting rod 16 and distributed between the movable return spring 17 and the telescopic bracket 20 to extrude the telescopic bracket 20;
in order to improve the stability of the crankshaft rotation detection process, the embodiment further comprises a cylinder body stable telescopic assembly, wherein the cylinder body stable telescopic assembly comprises a stable hydraulic cylinder 23 and a stable telescopic device 24; the stable telescopic device 24 comprises a stable sliding rod 24-1, a movable inserted rod 24-3, a stable piezoresistor 24-5 and an inserted rod spring 24-2; the middle rear part of the movable inserted link 24-3 is provided with a stable sliding link movable slot 24-4; the section of the movable groove 24-4 of the stable sliding rod is approximately T-shaped; the front part of the stable sliding rod 24-1 is correspondingly provided with a convex round table; the front part of the stable sliding rod is inserted into the movable groove of the stable sliding rod to be distributed, the inserting rod spring 24-2 is sleeved on the stable sliding rod 24-1 and distributed behind the movable inserting rod 24-3 and extrudes the movable inserting rod, and the stable piezoresistor 24-5 is sleeved on the stable sliding rod 24-1 and distributed between the inserting rod spring 24-2 and the movable inserting rod 24-3; in this embodiment, two stabilizing retractors 24 are provided and distributed corresponding to the two inserting rod sockets 28-2, and the front ends of the telescopic rods of the stabilizing hydraulic cylinders 23 are connected with the two stabilizing retractors 24 through a retractor connecting rod 25; of course, a pallet 22-1 is further provided on top of the pallet baffle 22 at the rear side of the cylinder positioning table 13, and the stabilizing hydraulic cylinder 23 is fixed on the pallet 22-1. In this embodiment, a positioning table fixing bracket 26 is further provided, and the cylinder positioning table 13 is adjustably fixed on the positioning table fixing bracket 26 through a tightening hole 27.
The automatic crankshaft rotating assembly comprises a rotating device fixing plate 1, a sliding rail 4 is arranged on the lower plate surface of the rotating device fixing plate 1, and a rotating mechanism frame 5 is slidably distributed on the sliding rail 4; the rotating machine frame 5 is distributed on the slide rail 4 through four linear slide bearings 8. The rotating motor is distributed on the rotating mechanism frame 5, and a servo motor 6 is adopted in the embodiment; the telescopic air cylinders 3 are distributed at the rear of the rotating machine frame 5, and the telescopic air cylinders 3 are fixedly connected with the rotating device fixing plate 1 through the air cylinder positioning blocks 2; the telescopic rod of the telescopic cylinder 3 is connected with the rear end of the rotary machine frame 5. The rotary machine frame 5 is also provided with a connecting rod 10, a telescopic fixed rod 11 and a crankshaft connector 7; the rear end of the connecting rod 10 is connected with a power output shaft of the servo motor 6 to provide rotary power for the servo motor; the crankshaft connector 7 is detachably connected with the telescopic fixed rod 11 through the spring plunger 11-2, and of course, the connection mode is not limited to the above, and other detachable connection modes such as threaded connection, sleeve type and the like can be also used; a rectangular telescopic groove 11-1 is formed in the rear part of the telescopic fixed rod 11; the front part of the connecting rod 10 corresponds to the rectangular expansion groove 11-1, namely, is also provided with a rectangular column shape, and mainly aims at preventing rotation, and the front part of the connecting rod 10 is inserted into the rectangular expansion groove 11-1 for telescopic connection; the front part of the connecting rod 10 is correspondingly provided with a telescopic spring 12, and the front end of the telescopic spring 12 is contacted with the rear end of the telescopic fixed rod 11; a metal sensor 9 is also arranged above the front part of the connecting rod 10; of course, in order to realize automatic control, the control circuit is connected with and controls the metal sensor 9, the servo motor 6, the telescopic cylinder 3, the pushing hydraulic cylinder 14, the telescopic moving hydraulic cylinder 15, the limiting plate hydraulic cylinder 18, the stabilizing hydraulic cylinder 23 and the stabilizing piezoresistor 24-5. Of course, in order to realize the detection of the metal sensor 9, the telescopic fixing rod 11 must be made of a metal material that can be detected by the metal sensor 9.
The method for detecting the rotation of the engine crankshaft by using the device comprises the following steps:
the engine cylinder is fastened on the engine cylinder stabilizing tray 28 of the invention through positioning pins, then is automatically conveyed through the upstream conveying roller way 29-1, before reaching the cylinder positioning table 13, the extrusion sliding member 19 in the limiting plate telescopic assembly on the cylinder positioning table 13 is at the highest position, the extrusion sliding member 19 of the telescopic extrusion plate moving assembly is at the lowest position, the engine cylinder stabilizing tray 28 smoothly slides into the cylinder positioning table 13, then the starting telescopic moving hydraulic cylinder 15 is controlled to further push the telescopic bracket 20 and the extrusion sliding member 19 to rise to the highest position, then the pushing hydraulic cylinder 14 is controlled to start and push the telescopic bracket 20 leftwards, at the moment, the extrusion sliding member 19 on the telescopic bracket 20 pushes the engine cylinder stabilizing tray 28 to slide to the extrusion sliding member 19 at the limiting plate telescopic assembly, then the pushing hydraulic cylinder is controlled to stop stretching, the extrusion sliding members 19 on the left side and the right side jointly perform stable extrusion on the engine cylinder stabilizing tray 28, and at the moment, the engine cylinder stabilizing tray 28 is positioned left and right; then the telescopic cylinder 3 of the automatic crankshaft rotating assembly is started, the telescopic cylinder 3 pushes the rotating mechanism frame 5 to move, after the crankshaft connector 7 is inserted into the crankshaft, the sliding extrusion block 19-3 based on the extrusion sliding member 19 can slide relative to the transverse sliding rod 19-2, so that the engine cylinder body stabilizing tray 28 clamped by the extrusion sliding member 19 at the left side and the right side is pushed to the tray baffle 22 under the pushing of the telescopic cylinder 3, the side plate of the engine cylinder body stabilizing tray 28 is tightly attached to the tray baffle 22, the positioning is completed, the telescopic fixed rod 11 is compressed at the same time, and is retracted below the metal sensor 9, the telescopic cylinder 3 is monitored to stop pushing, at this time, the stable hydraulic cylinder 23 is started, the stable telescopic device 24 is pushed to extend out and insert into the inserted rod inserting opening 28-2, when the movable inserted rod 24-3 is completely inserted into the inserted rod inserting opening 28-2, the stable hydraulic cylinder 23 continues pushing, the inserted rod spring 24-2 is compressed, the pressure is fed back to the stable piezoresistor 24-5, the stable hydraulic cylinder 23 is closed when the pressure reaches a set value, and the movable inserted rod 24-3 is caused to keep enough extrusion force on the stable tray 28 of the engine cylinder body, so that the stability of the engine cylinder body in the whole rotation detection process is ensured. Finally, the servo motor 6 is started to perform relevant rotation detection on the crankshaft.
After the detection is finished, the crankshaft connector and the stable telescopic device retract; the extrusion sliding component 19 in the limiting plate telescopic component on the cylinder positioning table 13 is contracted to the lowest position, then the hydraulic cylinder 14 is pushed leftwards continuously, the engine cylinder stabilizing tray 28 is pushed to the downstream conveying roller way 29-2, the automatic positioning and rotation detection operation is completed, and the next ring detection is carried out.
Claims (10)
1. An automatic system for engine crankshaft rotation detection, includes upstream transfer roller way and low reaches transfer roller way, its characterized in that: comprises an engine cylinder body stabilizing tray, a cylinder body automatic positioning component, a crankshaft automatic rotating component and a control circuit; the cylinder body automatic positioning components are correspondingly distributed between the upstream conveying roller way and the downstream conveying roller way; the crankshaft automatic rotating assembly is correspondingly distributed at the front side of the cylinder body automatic positioning assembly; a plurality of cylinder tightening positioning holes are formed in a bottom plate of the engine cylinder stabilizing tray; the automatic cylinder positioning assembly comprises a cylinder positioning table, a positioning table inner cavity is formed in the cylinder positioning table, a limiting plate longitudinal groove is formed in the left side of the upper plate surface of the cylinder positioning table, a telescopic extrusion plate longitudinal groove and a telescopic extrusion plate moving transverse groove are formed in the right side of the upper plate surface of the cylinder positioning table, and tray baffles are respectively arranged on the front side and the rear side of the cylinder positioning table;
the inner cavity of the positioning table is distributed with a limiting plate telescopic assembly and a telescopic extrusion plate moving assembly; the limiting plate telescopic assemblies are correspondingly distributed below the limiting plate longitudinal grooves; the telescopic extrusion plate moving assemblies are correspondingly distributed below the telescopic extrusion plate longitudinal grooves and the telescopic extrusion plate moving transverse grooves;
the limiting plate telescopic assembly comprises an extrusion sliding member and a limiting plate hydraulic cylinder; the extrusion sliding component comprises a supporting base, a transverse sliding rod, a sliding extrusion block and a spring; the transverse sliding rod is combined on the supporting base; the sliding extrusion block is matched with the transverse sliding rod, provided with a sliding groove and can be sleeved on the transverse sliding rod in a sliding way; the spring is sleeved on the transverse sliding rod and is distributed behind the sliding extrusion block; the telescopic rod of the limiting plate hydraulic cylinder is combined below the supporting base;
the telescopic extrusion plate moving assembly comprises a telescopic moving hydraulic cylinder, a pushing hydraulic cylinder, a telescopic bracket, a moving limiting rod, a moving return spring and the extrusion sliding component; a limiting rod sliding groove is formed in the telescopic bracket along the vertical direction; the upper end of the telescopic bracket is combined with the supporting base of the extrusion sliding component, and the lower end of the telescopic bracket is combined with the telescopic rod of the telescopic moving hydraulic cylinder; the telescopic movable hydraulic cylinder is movably connected with the bottom plate of the inner cavity of the positioning table; the pushing hydraulic cylinder is combined on the right side plate of the inner cavity of the positioning table, and the telescopic rods of the pushing hydraulic cylinder are correspondingly distributed on the right side of the telescopic bracket; the movable limiting rods are transversely distributed in the inner cavity of the positioning table and penetrate through the sliding grooves of the limiting rods; the movable reset spring is sleeved on the movable limiting rod and correspondingly distributed on the left side of the telescopic bracket to extrude the telescopic bracket;
the crankshaft automatic rotating assembly comprises a rotating device fixing plate, a sliding rail is arranged on the lower plate surface of the rotating device fixing plate, and a rotating machine frame is slidably distributed on the sliding rail; the rotating machine frame is provided with a rotating motor and a crankshaft connector, and the rotating motor provides rotating power for the crankshaft connector; the telescopic cylinders are distributed at the rear of the rotating machine frame and are fixedly connected with the rotating device fixing plate through cylinder positioning blocks; and a telescopic rod of the telescopic cylinder is connected with the rear end of the rotating machine frame.
2. An automated system for engine crankshaft rotation detection as recited in claim 1, wherein: the telescopic bracket is approximately U-shaped, and the two side plates of the telescopic bracket are provided with the limit rod sliding grooves; two movable transverse grooves of the telescopic extrusion plate are formed in the cylinder body positioning table corresponding to the telescopic bracket; each telescopic extrusion plate moving transverse groove and each telescopic extrusion plate longitudinal groove form a nearly T shape.
3. An automated system for engine crankshaft rotation detection as recited in claim 1, wherein: the telescopic extrusion plate moving assembly further comprises a spring extrusion block, wherein the spring extrusion block is sleeved on the moving limiting rod and is distributed between the moving reset spring and the telescopic bracket.
4. An automated system for engine crankshaft rotation detection as recited in claim 1, wherein: the bottom plate of the inner cavity of the positioning table is correspondingly provided with a sliding groove of the telescopic moving hydraulic cylinder, and the telescopic moving hydraulic cylinder can be slidably distributed in the sliding groove of the telescopic moving hydraulic cylinder.
5. An automated system for engine crankshaft rotation detection as recited in claim 1, wherein: the cylinder body stabilizing and telescoping assembly comprises a stabilizing hydraulic cylinder and a stabilizing telescopic device; the stable telescopic device comprises a stable sliding rod, a movable inserted rod, a stable piezoresistor and an inserted rod spring; the middle rear part of the movable inserted link is provided with a stable sliding link movable groove; the movable groove of the stable sliding rod is approximately T-shaped in cross section; the front part of the stable sliding rod is correspondingly provided with a convex round table; the front part of the stable sliding rod is inserted into the movable groove of the stable sliding rod to be distributed; the inserted bar spring is sleeved on the stable sliding bar and distributed behind the movable inserted bar, and extrudes the movable inserted bar; the stable piezoresistor is sleeved on the stable sliding rod and is distributed between the inserted rod spring and the movable inserted rod; the front end of the telescopic rod of the stable hydraulic cylinder is combined with the rear end of the stable sliding rod; the top of the tray baffle plate at the rear side of the cylinder body positioning table is also provided with a supporting table, and the stable hydraulic cylinder is fixed on the supporting table.
6. An automated system for engine crankshaft rotation detection as recited in claim 5, wherein: the side section of the stable tray of the engine cylinder body is approximately L-shaped, and the side panel of the stable tray is provided with a plug rod socket corresponding to the movable plug rod.
7. An automated system for engine crankshaft rotation detection as recited in claim 1, wherein: the rotating mechanism frame is distributed on the sliding rail through four linear sliding bearings.
8. An automated system for engine crankshaft rotation detection as recited in claim 6, wherein: the crankshaft automatic rotating assembly further comprises a connecting rod and a telescopic fixed rod; the rear end of the connecting rod is connected with a power output shaft of the rotating motor; the front end of the telescopic fixed rod is connected with the crankshaft connector, and a rectangular telescopic groove is formed in the rear part of the telescopic fixed rod; the front part of the connecting rod corresponds to the rectangular telescopic groove and is inserted into the rectangular telescopic groove to be connected in a telescopic way, the front part of the connecting rod is correspondingly provided with a telescopic spring, and the front end of the telescopic spring is contacted with the rear end of the telescopic fixed rod; a metal sensor is arranged above the front part of the connecting rod; the control circuit is connected with the metal sensor, the rotating motor and the telescopic cylinder.
9. An automated system for engine crankshaft rotation detection as recited in claim 8, wherein: the crankshaft connector is detachably connected with the telescopic fixed rod through a spring plunger; the rotating motor is a servo motor.
10. A method for engine crankshaft rotation detection using an automated system for engine crankshaft rotation detection as recited in claim 8, comprising the steps of:
(1) Using the assembled automatic system, using a locating pin to tighten the engine cylinder to be detected onto the engine cylinder stabilizing tray;
(2) Starting a limiting plate hydraulic cylinder of the limiting plate telescopic assembly to enable the limiting plate hydraulic cylinder to extrude the sliding member to rise to the highest position;
(3) When the stable tray of the engine cylinder body moves to a cylinder body positioning table, starting the telescopic moving hydraulic cylinder to push the telescopic bracket and the extrusion sliding component on the telescopic bracket to rise to the highest position; then starting the pushing hydraulic cylinder, pushing the telescopic bracket leftwards, pushing the stable tray of the engine cylinder body to the extrusion sliding component at the telescopic component of the limiting plate, stopping the pushing hydraulic cylinder, and jointly stably extruding the stable tray of the engine cylinder body by the extrusion sliding components at the left side and the right side, so that the left and right positioning of the stable tray of the engine cylinder body is completed;
(4) Starting a telescopic cylinder of the crankshaft automatic rotating assembly, wherein the telescopic cylinder pushes the rotating mechanism frame to move, and after the crankshaft connector is inserted into a crankshaft of an engine cylinder, the telescopic cylinder pushes a stable tray of the engine cylinder to move backwards to a tray baffle plate at the rear side of the cylinder positioning table; meanwhile, a telescopic fixed rod of the crankshaft automatic rotating assembly is compressed, and is monitored when the telescopic fixed rod is retracted to the lower part of the metal sensor, so that the telescopic cylinder is controlled to stop pushing; positioning is completed;
(5) Simultaneously, the cylinder body stabilizing telescopic assembly is started, the stabilizing hydraulic cylinder is started, the stabilizing telescopic device is pushed to extend out and insert into the inserted rod inserting opening, when the movable inserted rod is completely inserted into the inserted rod inserting opening, the stabilizing hydraulic cylinder continues to push, the inserted rod spring is compressed, the pressure is fed back to the stabilizing piezoresistor, the stabilizing hydraulic cylinder is closed when the pressure reaches a set value, and the movable inserted rod is enabled to keep enough extrusion force on a stabilizing tray of the engine cylinder body;
(6) Starting a rotating motor/servo motor of the automatic crankshaft rotating assembly to start relevant rotation detection of the crankshaft;
(7) After parameter detection is completed, the crankshaft connector and the stable telescopic device retract; and controlling the extrusion sliding component in the limiting plate telescopic component to be contracted to the lowest position, then starting the pushing hydraulic cylinder to push the engine cylinder body to the left, and pushing the stable tray of the engine cylinder body to the downstream conveying roller way to finish the automatic positioning and rotation detection operation.
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