CN115213675B - Adjusting method of lock pin clearance adjusting mechanism of cam shaft phaser - Google Patents
Adjusting method of lock pin clearance adjusting mechanism of cam shaft phaser Download PDFInfo
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- CN115213675B CN115213675B CN202210978690.2A CN202210978690A CN115213675B CN 115213675 B CN115213675 B CN 115213675B CN 202210978690 A CN202210978690 A CN 202210978690A CN 115213675 B CN115213675 B CN 115213675B
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000012360 testing method Methods 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 4
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- 238000013461 design Methods 0.000 description 3
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- 238000007792 addition Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
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- 238000005859 coupling reaction Methods 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- 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
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- 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
- B23P19/06—Screw or nut setting or loosening machines
Abstract
The invention relates to an adjusting method of a lock pin clearance adjusting mechanism of a cam shaft phaser, and belongs to the field of phaser assembly adjustment. The invention discloses an adjusting mechanism which comprises a top fixing plate, a bottom fixing plate, a right fixing plate, a left fixing plate, a jacking pressurizing mechanism component, a tool guiding mechanism component, a servo mechanism component, an electric tightening gun mechanism component, a profile sensor component and a gap adjusting mechanism component. The adjustment method has the advantages of accurate adjustment data, high consistency, strong universality, convenient operation, high efficiency and good stability.
Description
Technical Field
The invention relates to an adjusting method, in particular to an adjusting method of a lock pin clearance adjusting mechanism of a cam shaft phaser, and belongs to the field of phaser assembly adjustment.
Background
The existing lock pin clearance adjustment of the phaser adopts a rotor adjustment method, the adjustment range is discrete and unstable, the adjustment process is relatively complex, the efficiency is low, and the qualification rate of products is greatly reduced.
Therefore, the lock pin clearance adjusting mechanism of the cam shaft phaser, which is simple and reasonable in structural design, stable in adjustment and high in testing efficiency, and the adjusting method thereof are particularly necessary.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the adjusting method of the lock pin clearance adjusting mechanism of the cam shaft phaser, which has the advantages of simple and reasonable structural design, accurate adjustment data, high consistency, strong universality, convenient debugging operation and high test efficiency.
The invention solves the problems by adopting the following technical scheme: the adjusting method of the lock pin clearance adjusting mechanism of the camshaft phaser comprises a lock pin clearance adjusting mechanism, wherein the lock pin clearance adjusting mechanism comprises a top fixing plate, a bottom fixing plate, a right fixing plate, a left fixing plate, a jacking pressurizing mechanism component, a tool guiding mechanism component, a servo mechanism component, an electric tightening gun mechanism component, a profile sensor component and a clearance adjusting mechanism component, the top fixing plate, the bottom fixing plate, the right fixing plate and the left fixing plate are connected, the jacking pressurizing mechanism component is arranged on the top fixing plate, the tool guiding mechanism component is connected with the top fixing plate, the servo mechanism component is arranged on the top fixing plate, the electric tightening gun mechanism component is connected with the top fixing plate, the profile sensor component is connected with the top fixing plate, and the clearance adjusting mechanism component is arranged on the top fixing plate, and the adjusting method is characterized in that: the specific steps of the adjusting method of the lock pin clearance adjusting mechanism of the cam shaft phaser are as follows:
(S1) putting the product into a test tool;
(S2) rotor fixing: the tool guide mechanism component stretches out, the jacking pressurizing mechanism component jacks up to press a rotor of a product, and the pressure sensor monitors the pressure of the jacking pressurizing mechanism component in real time to ensure the static state of the rotor; at the moment, according to the positioning angle of the product on the tool, the servo mechanism assembly drives the transmission mechanism to move, the servo mechanism assembly rotates to the clamping position of the chain wheel, the gap adjusting mechanism assembly acts to clamp the chain wheel, and the tool guide mechanism assembly retracts;
(S3) loosening product screws: the four electric tightening gun mechanism components pre-tighten the four screws of the product to a torque of 1.6NM, then start the electric tightening gun mechanism components to reverse the screws by 360 degrees, ensure the consistency of the torque and the state of the four screws, and ensure the consistency of friction torque when the lock pin clearance is adjusted;
(S4) cover plate fixing: the fixture guide mechanism component extends out to prop the fixture; the tooling guide mechanism component stretches out to push the positioning tooling welt to enable the cover plate to be stressed and still;
(S5) the servo mechanism assembly performs sprocket adjustment: the rotor and the cover plate are fixed, the adjustment direction is selected according to the model of the phaser, firstly, the servo mechanism assembly clamps the sprocket to move to the opposite direction of the rotor rotation for binding, when the torque of the servo mechanism assembly is detected to reach 10NM, the sprocket is considered to reach the binding position relative to the rotor, and at the moment, the position of the sprocket is recorded as Pos1 by the external profile sensor assembly; because the sprocket reaches the welt position and is judged by the torque, the whole adjusting mechanism is stressed at the moment; because the servo mechanism component is positively adjusted and the welt rotates reversely when the lock pin clearance is adjusted, the servo mechanism component can shake when the servo mechanism component moves reversely due to the previous welt force, and the adjusted angle instantaneously changes greatly or completely exceeds the adjusted set value; in order to eliminate the strain force of the servo mechanism assembly and the connecting shaft mechanism, the servo mechanism assembly is enabled to be closed at the moment so that all the strain force is released freely, and the servo mechanism assembly can be adjusted smoothly during reverse adjustment; then, enabling the servo mechanism assembly to be opened by delaying, recording the current position of the chain wheel as Pos2, and calculating the angle of Pos2-Pos1 by the PLC to compare the set angle so as to judge the direction of the lock pin clearance needing to be readjusted; at this time, the servo mechanism assembly performs closed-loop adjustment until the set position, and if the adjustment is unsuccessful all the time, a fault is reported;
(S6) final tightening: after the gap adjustment of the lock pin is completed, the four electric tightening gun mechanism components start to be synchronously tightened, so that the screw torque reaches 10NM;
(S7) judging that the lock pin clearance adjustment is finished after final tightening: after final tightening is complete, the profile sensor assembly records the final sprocket position as Pos3, at which point Pos3-Pos1 is again determined to be compared to the detent clearance setting.
Compared with the prior art, the invention has the following advantages and effects: 1) The device has the advantages of simple and reasonable structural design, accurate adjustment data, high consistency, strong universality, convenient operation, high efficiency and good stability; 2) The contour sensor component can eliminate the gap deviation of all linkage mechanisms such as servo load and the like, thereby ensuring the authenticity of the adjustment result; 3) The two types of phasers of air inlet and air outlet on the compatible DVVT are flexible in setting the adjustment angle according to the product requirement, and high in universality; 4) The adjustment stability is high, the product consistency is good, and the adjustment range is within + -0.1 degree; 5) The individual products automatically adjust the beats for 16 seconds.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 3 is a schematic diagram of the control principle of the embodiment of the present invention.
Fig. 4 is a schematic diagram of an adjustment principle according to an embodiment of the present invention.
In the figure: top fixed plate 1, bottom fixed plate 2, right side fixed plate 3, left side fixed plate 4, jacking pressurization mechanism subassembly 5, frock guiding mechanism subassembly 6, servo mechanism subassembly 7, electronic rifle mechanism subassembly 8 of screwing up, profile sensor subassembly 9, clearance adjustment mechanism subassembly 10.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and not limited to the following examples.
Examples
Referring to fig. 1 to 4, the lock pin clearance adjustment mechanism of the cam shaft phaser of the present embodiment includes a top fixing plate 1, a bottom fixing plate 2, a right fixing plate 3, a left fixing plate 4, a jack-up pressurizing mechanism assembly 5, a tooling guide mechanism assembly 6, a servo mechanism assembly 7, an electric tightening gun mechanism assembly 8, a profile sensor assembly 9, and a clearance adjustment mechanism assembly 10, the top fixing plate 1, the bottom fixing plate 2, the right fixing plate 3, and the left fixing plate 4 are connected, the jack-up pressurizing mechanism assembly 5 is mounted on the top fixing plate 1, the tooling guide mechanism assembly 6 is connected with the top fixing plate 1, the servo mechanism assembly 7 is mounted on the top fixing plate 1, the electric tightening gun mechanism assembly 8 is connected with the top fixing plate 1, the profile sensor assembly 9 is connected with the top fixing plate 1, the clearance adjustment mechanism assembly 10 is mounted on the top fixing plate 1, and the clearance adjustment mechanism assembly 10 is connected with the servo mechanism assembly 7 through a timing belt.
The top fixing plate 1 and the right fixing plate 3 in the present embodiment are connected by bolts; the top fixing plate 1 is connected with the left fixing plate 4 through bolts; the bottom fixing plate 2 and the right fixing plate 3 are connected through bolts, and the bottom fixing plate 2 and the left fixing plate 4 are connected through bolts.
The jacking and pressurizing mechanism assembly 5 in this embodiment is connected to the bottom fixing plate 2 by bolts.
The tool guide mechanism assembly 6, the servo mechanism assembly 7, the electric tightening gun mechanism assembly 8, the profile sensor assembly 9 and the gap adjustment mechanism assembly 10 in the embodiment are all connected with the top fixing plate 1 through bolts.
The electric tightening gun mechanism assembly 8 in this embodiment is four-piece.
The specific steps of the adjusting method of the lock pin clearance adjusting mechanism of the cam shaft phaser of the embodiment are as follows:
(S1) putting the product into a test tool;
(S2) rotor fixing: the tooling guide mechanism component 6 stretches out, the jacking and pressurizing mechanism component 5 jacks up to press a rotor of a product, and the pressure sensor monitors the pressure of the jacking and pressurizing mechanism component 5 in real time to ensure the static state of the rotor; at the moment, according to the positioning angle of the product on the tool, the servo mechanism assembly 7 drives the transmission mechanism to move, the servo mechanism assembly 7 rotates to the clamping position of the chain wheel, the gap adjusting mechanism assembly 10 acts to clamp the chain wheel, and the tool guide mechanism assembly 6 retracts;
(S3) loosening product screws: the four electric tightening gun mechanism components 8 pre-tighten the four screws of the product to a torque of 1.6NM, and then the electric tightening gun mechanism components 8 are started to rotate reversely to rotate the screws reversely by 360 degrees, so that the consistency of the torque and the state of the four screws is ensured, and the consistency of the friction torque during the adjustment of the lock pin clearance is ensured;
(S4) cover plate fixing: the fixture guide mechanism component 6 stretches out to prop up the fixture (left adjustment and right adjustment are selected according to the air inlet and outlet types of the product); the adjusting cylinder stretches out to push the positioning tool to cling to the edge so that the cover plate is stressed and is static;
(S5) the servo mechanism assembly 7 performs sprocket adjustment: the rotor and the cover plate are fixed, the adjustment direction is selected according to the model of the phaser, firstly, the servo mechanism assembly 7 clamps the sprocket to move to the opposite direction of the rotor rotation, when the torque of the servo mechanism assembly 7 is detected to reach 10NM, the sprocket is considered to reach the welt position relative to the rotor, and at the moment, the position of the sprocket is recorded as Pos1 by the outer profile sensor assembly 9; because the sprocket reaches the welt position and is judged by the torque, the whole adjusting mechanism is stressed at the moment; because the servo mechanism assembly 7 is positively adjusted and the welt rotates reversely when the lock pin clearance is adjusted, the servo mechanism assembly can shake when the servo mechanism assembly moves reversely due to the previous welt force, and the adjusted angle instantaneously changes greatly or completely exceeds the adjusted set value; in order to eliminate the strain of the servo mechanism assembly 7 and the coupling mechanism, the servo mechanism assembly 7 is closed at this time to release all the strain freely, so that the servo mechanism assembly 7 can be regulated smoothly during the reverse regulation. The servo assembly 7 is then enabled to open by a delay, the current sprocket position is recorded as Pos2, and the PLC calculates the angle of Pos2-Pos1 versus the set angle to determine the direction in which the lock pin clearance needs to be readjusted (the direction is not fixed at this time). At this time, the servo mechanism assembly 7 performs closed-loop adjustment until the set position (current value of the profile sensor assembly 9-Pos 1> = set value), and if the adjustment is not successful, the error is reported (timeout);
(S6) final tightening: the gap adjustment of the lock pin is completed, and the four electric tightening gun mechanism components 8 start to be synchronously tightened, so that the screw torque reaches 10NM (range + -1 NM);
(S7) judging that the lock pin clearance adjustment is finished after final tightening: after final tightening is complete, the profile sensor assembly 9 records the final sprocket position as Pos3, at which point Pos3-Pos1 is again judged to be compared to the lock pin clearance set point (acceptable range + -0.1 degrees).
The respective components in this embodiment are described as follows:
a) The jacking and pressurizing mechanism assembly 5 is used for fixing the rotor of the phaser and pressing the rotor to prevent the rotor from rotating relatively;
b) The guide cylinder fixes a jig for placing the product in the process of adjusting the product;
c) The servo mechanism assembly 7 provides the direction of the rotating sprocket and the torque required for power and output welt adjustment;
d) The electric tightening gun mechanism assembly 8 is used for ensuring the consistency of the torque and the angle of the screw of the front phaser to ensure that the friction force among the rotor, the chain wheel and the cover plate is consistent and the final tightening torque reaches the judgment result;
e) The profile sensor component 9 monitors the adjusted angle in real time to form closed loop feedback real-time adjustment, and meanwhile, adjustment result judgment after final tightening is also carried out;
f) The gap adjustment mechanism assembly 10 is used in a product adjustment process to clamp a product sprocket portion for left and right sprocket adjustment relative to the rotor.
In practical application of the embodiment, the jacking and pressurizing mechanism component 5 can be a TOX gas-liquid pressurizing cylinder; the fixture guide mechanism assembly 6 can select a fixture guide cylinder or a chain wheel adjusting cylinder; the servo mechanism assembly 7 can be a servo motor; the electric tightening gun mechanism component 8 can be a tightening gun or a screw gun; the profile sensor assembly 9 may be a profiler; the gap adjusting mechanism assembly 10 can select a left positioning cylinder and a right positioning cylinder; the specific apparatus may be selected or replaced according to the actual situation, as long as the above implementation actions can be implemented.
From the above description, those skilled in the art will be able to practice.
In addition, it should be noted that the specific embodiments described in the present specification may vary from part to part, from name to name, etc., and the above description in the present specification is merely illustrative of the structure of the present invention. All equivalent or simple changes of the structure, characteristics and principle according to the inventive concept are included in the protection scope of the present patent. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the scope of the invention as defined in the accompanying claims.
Claims (1)
1. The utility model provides an adjustment method of lockpin clearance adjustment mechanism of camshaft phaser, includes lockpin clearance adjustment mechanism, lockpin clearance adjustment mechanism includes top fixed plate (1), bottom fixed plate (2), right side fixed plate (3), left side fixed plate (4), jack-up pressurizing mechanism subassembly (5), frock guiding mechanism subassembly (6), servo mechanism subassembly (7), electronic tightening rifle mechanism subassembly (8), profile sensor subassembly (9) and clearance adjustment mechanism subassembly (10), top fixed plate (1), bottom fixed plate (2), right side fixed plate (3) and left side fixed plate (4) are connected, jack-up pressurizing mechanism subassembly (5) are installed on top fixed plate (1), frock guiding mechanism subassembly (6) are connected with top fixed plate (1), servo mechanism subassembly (7) are installed on top fixed plate (1), electronic tightening rifle mechanism subassembly (8) are connected with top fixed plate (1), profile sensor subassembly (9) are connected with top fixed plate (1), clearance adjustment mechanism subassembly (10) are installed on top fixed plate (1), its characterized in that: the specific steps of the adjusting method of the lock pin clearance adjusting mechanism of the cam shaft phaser are as follows:
(S1) putting the product into a test tool;
(S2) rotor fixing: the tool guide mechanism assembly (6) stretches out, the jacking pressurizing mechanism assembly (5) jacks up to press a rotor of a product, and the pressure sensor monitors the pressure of the jacking pressurizing mechanism assembly (5) in real time to ensure the static state of the rotor; at the moment, according to the positioning angle of the product on the tool, the servo mechanism assembly (7) drives the transmission mechanism to move, the servo mechanism assembly (7) rotates to the clamping position of the chain wheel, the gap adjusting mechanism assembly (10) acts to clamp the chain wheel, and the tool guide mechanism assembly (6) retracts;
(S3) loosening product screws: the four electric tightening gun mechanism components (8) pre-tighten four screws of a product to a torque of 1.6NM, and then the electric tightening gun mechanism components (8) are started to reverse the screws by 360 degrees, so that the consistency of the torque and the state of the four screws is ensured, and the consistency of friction torque during the adjustment of a lock pin clearance is ensured;
(S4) cover plate fixing: the fixture guide mechanism component (6) stretches out to prop the fixture; the tooling guide mechanism component (6) stretches out to push the positioning tooling welt to enable the cover plate to be stressed and still;
(S5) the servo mechanism assembly (7) performs sprocket adjustment: the rotor and the cover plate are fixed, the adjustment direction is selected according to the model of the phaser, firstly, the servo mechanism assembly (7) clamps the sprocket to move to the opposite direction of the rotor rotation, when the torque of the servo mechanism assembly (7) is detected to reach 10NM, the sprocket is considered to reach the welt position relative to the rotor, and at the moment, the position of the sprocket is recorded as Pos1 by the external profile sensor assembly (9); because the sprocket reaches the welt position and is judged by the torque, the whole adjusting mechanism is stressed at the moment; because the servo mechanism assembly (7) is in forward adjustment and welt rotation reverse direction when the lock pin clearance adjustment is carried out, the servo mechanism assembly can shake when the servo mechanism assembly moves reversely due to the previous welt force, and the angle of adjustment is changed very instantaneously or exceeds the set value of adjustment completely; in order to eliminate the strain force of the servo mechanism assembly (7) and the connecting shaft mechanism, the servo mechanism assembly (7) is enabled to be closed at the moment so that all the strain force is released freely, and the servo mechanism assembly (7) can be adjusted smoothly during reverse adjustment; then, enabling the servo mechanism assembly (7) to be opened in a delayed mode, recording the current position of the chain wheel as Pos2, and calculating the angle of Pos2-Pos1 by the PLC to compare the set angle so as to judge the direction of the lock pin clearance needing to be readjusted; at this time, the servo mechanism assembly (7) can carry out closed-loop adjustment until the set position, and if the adjustment is unsuccessful all the time, errors are reported;
(S6) final tightening: the gap adjustment of the lock pin is completed, and the four electric tightening gun mechanism components (8) start to be synchronously tightened, so that the screw torque reaches 10NM;
(S7) judging that the lock pin clearance adjustment is finished after final tightening: after final tightening is complete, the profile sensor assembly (9) records the final sprocket position as Pos3, and at this time, again determines Pos3-Pos1 as compared to the detent clearance set point.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210978690.2A CN115213675B (en) | 2022-08-16 | 2022-08-16 | Adjusting method of lock pin clearance adjusting mechanism of cam shaft phaser |
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| CN202210978690.2A CN115213675B (en) | 2022-08-16 | 2022-08-16 | Adjusting method of lock pin clearance adjusting mechanism of cam shaft phaser |
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| CN115213675B true CN115213675B (en) | 2024-03-08 |
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