CN115213675A - Adjusting method of lock pin clearance adjusting mechanism of camshaft phaser - Google Patents
Adjusting method of lock pin clearance adjusting mechanism of camshaft phaser Download PDFInfo
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- CN115213675A CN115213675A CN202210978690.2A CN202210978690A CN115213675A CN 115213675 A CN115213675 A CN 115213675A CN 202210978690 A CN202210978690 A CN 202210978690A CN 115213675 A CN115213675 A CN 115213675A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000002441 reversible effect Effects 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly 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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- 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 camshaft phaser, belonging to the field of phaser assembly adjustment. The adjusting mechanism comprises a top fixing plate, a bottom fixing plate, a right fixing plate, a left fixing plate, a jacking pressurizing mechanism assembly, a tool guide mechanism assembly, a servo mechanism assembly, an electric tightening gun mechanism assembly, a profile sensor assembly and a gap adjusting mechanism assembly. The adjusting method has the advantages of accurate adjusting 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 camshaft phaser, and belongs to the field of phaser assembly and adjustment.
Background
The lock pin clearance adjustment of the existing 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 product yield is greatly reduced.
Therefore, it is particularly necessary to provide a lock pin clearance adjusting mechanism of a camshaft phaser and an adjusting method thereof, which have simple and reasonable structural design, stable adjustment and high testing efficiency.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the adjusting method of the lock pin clearance adjusting mechanism of the camshaft phaser, which has the advantages of simple and reasonable structural design, accurate adjusting data, high consistency, strong universality, convenient debugging operation and high testing efficiency.
The technical scheme adopted by the invention for solving the problems is as follows: the adjusting method of the lock pin clearance adjusting mechanism of the camshaft phaser comprises a lock pin clearance adjusting mechanism, 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 assembly, a tool guiding mechanism assembly, a servo mechanism assembly, an electric tightening gun mechanism assembly, a contour sensor assembly and a clearance adjusting mechanism assembly, the top fixing plate, the bottom fixing plate, the right fixing plate and the left fixing plate are connected, the jacking pressurizing mechanism assembly is installed on the top fixing plate, the tool guiding mechanism assembly is connected with the top fixing plate, the servo mechanism assembly is installed on the top fixing plate, the electric tightening gun mechanism assembly is connected with the top fixing plate, the contour sensor assembly is connected with the top fixing plate, and the clearance adjusting mechanism assembly is installed on the top fixing plate, and the adjusting mechanism is characterized in that: the method for adjusting the lock pin clearance adjusting mechanism of the camshaft phaser comprises the following specific steps:
(S1) putting a product into a test tool;
(S2) rotor fixation: the tool guide mechanism assembly extends out, the jacking pressurization mechanism assembly jacks up to press the rotor of the product, and the pressure sensor monitors the pressure of the jacking pressurization mechanism assembly 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 screws of products: the four electric tightening gun mechanism components pre-tighten four screws of a product to a torque of 1.6NM, then the electric tightening gun mechanism components are started to reversely rotate for 360 degrees, so that the torque size and state consistency of the four screws are ensured, and the friction torque consistency during the lockpin clearance adjustment is ensured;
(S4) fixing a cover plate: the tool guide mechanism component extends out to support the clamp; the tool guide mechanism component extends out to push the positioning tool welt to enable the cover plate to be stressed still;
(S5) the servo mechanism component adjusts the chain wheel: fixing the rotor and the cover plate, selecting an adjusting direction according to the type of the phaser, firstly clamping the chain wheel by the servo mechanism assembly to move along the welt in the opposite direction of the rotation of the rotor, considering that the chain wheel reaches the welt position relative to the rotor when detecting that the torque of the servo mechanism assembly reaches 10NM, and recording the position of the chain wheel as Pos1 by the external contour sensor assembly at the moment; the chain wheel reaches the welt position through torque judgment, and the whole adjusting mechanism is stressed at the moment; because the servo mechanism component is adjusted in the positive direction and rotates in the direction opposite to the welting direction when the lockpin clearance is adjusted, the servo mechanism component can shake when moving in the reverse direction due to the previous welting force, and the adjustment angle changes greatly instantly or exceeds the adjustment set value completely; in order to eliminate the strain force of the servo mechanism assembly and the connecting shaft mechanism, the servo mechanism assembly is closed to release all the strain force freely, and smooth adjustment of the servo mechanism assembly is ensured during reverse adjustment; then, the servo mechanism assembly is enabled to be opened in a delayed mode, the current position of the chain wheel is recorded as Pos2, and the PLC calculates the angle between Pos2 and Pos1 and compares the angle with a set angle to judge the direction of the lock pin gap needing to be readjusted; at the moment, the servo mechanism component can carry out closed-loop adjustment until the set position is reached, and if the adjustment is not successful all the time, an error is reported;
(S6) final tightening: after the adjustment of the lock pin clearance is finished, synchronously screwing the four electric tightening gun mechanism components to ensure that the screw torque reaches 10NM;
(S7) adjusting and judging the clearance of the lock pin after the lock pin is screwed up: after the final tightening is completed, the profile sensor assembly records that the final sprocket position is Pos3, and at this time, it is judged that Pos3-Pos1 is compared with the lock pin clearance set value.
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, convenience in operation, high efficiency and good stability; 2) The contour sensor assembly detects that the gap deviation of all linkage mechanisms such as servo loads and the like can be eliminated, so that the authenticity of an adjustment result is ensured; 3) The two phasers of air intake and air exhaust on the DVVT are compatible, the adjustment angle is flexibly set according to the product requirement, and the universality is strong; 4) The adjustment stability is high, the product consistency is good, and the adjustment range is within plus-0.1 degrees; 5) The beat is automatically adjusted for 16 seconds for a single product.
Drawings
Fig. 1 is a first schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a second structural diagram of the embodiment of the invention.
Fig. 3 is a schematic control diagram of an embodiment of the present invention.
Fig. 4 is a schematic diagram of an adjustment principle of an embodiment of the present invention.
In the figure: the tool comprises a top fixing plate 1, a bottom fixing plate 2, a right fixing plate 3, a left fixing plate 4, a jacking and pressurizing mechanism assembly 5, a tool guide mechanism assembly 6, a servo mechanism assembly 7, an electric tightening gun mechanism assembly 8, a contour sensor assembly 9 and a clearance adjusting mechanism assembly 10.
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.
Examples are given.
Referring to fig. 1 to 4, the lock pin gap adjustment mechanism of the camshaft 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 jacking pressurization 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 gap 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 jacking pressurization mechanism assembly 5 is installed 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 installed 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 gap adjustment mechanism assembly 10 is installed on the top fixing plate 1, and the gap adjustment mechanism assembly 10 is connected with the servo mechanism assembly 7 through a synchronous belt.
The top fixing plate 1 and the right fixing plate 3 in the embodiment are connected through bolts; the top fixing plate 1 is connected with the left fixing plate 4 through a bolt; 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 pressurizing mechanism component 5 in the embodiment is connected with the bottom fixing plate 2 through a bolt.
The tool guide mechanism assembly 6, the servo mechanism assembly 7, the electric tightening gun mechanism assembly 8, the contour sensor assembly 9 and the clearance adjusting 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 pieces.
The adjusting method of the lock pin clearance adjusting mechanism of the camshaft phaser comprises the following specific steps:
(S1) putting a product into a testing tool;
(S2) rotor fixing: the tool guide mechanism assembly 6 extends out, the jacking pressurization mechanism assembly 5 jacks up to press the rotor of the product, and the pressure sensor monitors the pressure of the jacking pressurization 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 screws of products: 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 reversely rotate for 360 degrees to ensure the consistency of the torque and the state of the four screws, so that the consistency of friction torque when the locking pin clearance is adjusted is ensured;
(S4) fixing a cover plate: the tool guide mechanism assembly 6 extends out to support the clamp (the left adjustment and the right adjustment are selected according to the air inlet and outlet model of the product); the adjusting cylinder extends out to push the positioning tool to stick edges so that the cover plate is stressed to be still;
(S5) the servo mechanism assembly 7 performs sprocket adjustment: fixing the rotor and the cover plate, selecting an adjusting direction according to the type of the phaser, firstly clamping a chain wheel by a servo mechanism assembly 7 to move along a welt in the opposite direction of the rotation of the rotor, considering that the chain wheel reaches a welt position relative to the rotor when detecting that the torque of the servo mechanism assembly 7 reaches 10NM, and recording the position of the chain wheel as Pos1 by an external contour sensor assembly 9; the chain wheel reaches the welt position through torque judgment, and the whole adjusting mechanism is stressed at the moment; because the servo mechanism component 7 is adjusted in a forward direction and rotates in a direction opposite to the welt when the lockpin clearance is adjusted, the servo mechanism component can shake when moving in a reverse direction due to the previous welt force, and the adjustment angle changes greatly instantly or completely exceeds the adjustment set value; in order to eliminate the strain force of the servo mechanism assembly 7 and the connecting shaft mechanism, the servo mechanism assembly 7 is closed at the moment so that all strain force is released freely, and smooth adjustment of the servo mechanism assembly 7 during reverse adjustment is guaranteed. Then the servo mechanism assembly 7 is enabled to be opened in a delayed mode, the current position of the chain wheel is recorded as Pos2, and the PLC calculates the angle between Pos2 and Pos1 and compares the set angle to judge the direction (the direction is not fixed) in which the lock pin gap needs to be readjusted. At this time, the servo mechanism component 7 will perform closed-loop adjustment until the set position (the current value-Pos 1> = the set value of the contour sensor component 9), and if the adjustment is unsuccessful, an error will be reported (timeout);
(S6) final tightening: after the adjustment of the lock pin clearance is finished, synchronously screwing four electric screwing gun mechanism assemblies 8 to enable the screw torque to reach 10NM (range +/-1 NM);
(S7) adjusting and judging the clearance of the lock pin after the lock pin is screwed up: after the final tightening is completed, the profile sensor assembly 9 records the final sprocket position as Pos3, and at this time, it is determined that Pos3-Pos1 is compared with the lock pin clearance set value (pass range + -0.1 degrees).
The respective components in the present embodiment are explained as follows:
a) The jacking pressurizing mechanism assembly 5 fixes the phaser rotor and presses the rotor to prevent the rotor from relatively rotating;
b) The guide cylinder fixes a jig for placing a product in the product adjusting process;
c) The servo mechanism component 7 provides the direction and power of the rotating chain wheel and the torque required by the output welt adjustment;
d) The electric tightening gun mechanism assembly 8 is used for ensuring the consistency of the torque and the angle of a screw of the front phaser, so that the friction force among the rotor, the chain wheel and the cover plate is consistent, and the final tightening torque reaches the result judgment;
e) The profile sensor assembly 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 carried out;
f) The gap adjustment mechanism assembly 10 is used for product adjustment to clamp the product sprocket portion for side-to-side adjustment of the sprocket relative to the rotor.
In practical application of this embodiment, the jacking and pressurizing mechanism assembly 5 may be a TOX gas-liquid pressurizing cylinder; the tool guide mechanism assembly 6 can select a clamp guide cylinder or a chain wheel adjusting cylinder; the servo mechanism component 7 can select a servo motor; the electric tightening gun mechanism assembly 8 can be a tightening gun or a screw gun; the profile sensor assembly 9 can be a profiler; the clearance adjusting mechanism assembly 10 can be a left positioning cylinder and a right positioning cylinder; the specific devices can be selected or substituted according to actual conditions as long as the implementation actions can be realized.
And will be apparent to those skilled in the art from the foregoing description.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an illustration of the structure of the present invention. Equivalent or simple changes in the structure, characteristics and principles of the invention are included in the protection scope of the patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (1)
1. A method for adjusting a lock pin clearance adjusting mechanism of a camshaft phaser comprises the lock pin clearance adjusting mechanism, the lock pin clearance adjusting mechanism comprises a top fixing plate (1), a bottom fixing plate (2), a right fixing plate (3), a left fixing plate (4), a jacking pressurizing mechanism assembly (5), a tool guide mechanism assembly (6), a servo mechanism assembly (7), an electric tightening gun mechanism assembly (8), a contour sensor assembly (9) and a clearance adjusting 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 jacking pressurizing mechanism assembly (5) is installed on the top fixing plate (1), the tool guide mechanism assembly (6) is connected with the top fixing plate (1), the servo mechanism assembly (7) is installed on the top fixing plate (1), the electric tightening gun mechanism assembly (8) is connected with the top fixing plate (1), the contour sensor assembly (9) is connected with the top fixing plate (1), and the clearance adjusting mechanism assembly (10) is installed on the top fixing plate (1), and the camshaft phaser is characterized in that: the method for adjusting the lock pin clearance adjusting mechanism of the camshaft phaser comprises the following specific steps:
(S1) putting a product into a testing tool;
(S2) rotor fixation: the tool guide mechanism assembly (6) extends out, the jacking pressurization mechanism assembly (5) jacks up to press the rotor of the product, and the pressure sensor monitors the pressure of the jacking pressurization 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 screws of products: the four electric tightening gun mechanism components (8) pre-tighten four screws of a product to a torque of 1.6NM, then the electric tightening gun mechanism components (8) are started to reversely rotate for 360 degrees to ensure the consistency of the torque and the state of the four screws and the consistency of friction torque when the locking pin clearance is adjusted;
(S4) fixing a cover plate: the tool guide mechanism assembly (6) extends out to support the clamp; the tool guide mechanism assembly (6) extends out to push the positioning tool to stick edges so that the cover plate is stressed and kept still;
(S5) the servo mechanism component (7) adjusts the chain wheel: fixing the rotor and the cover plate, selecting an adjusting direction according to the type of the phaser, firstly clamping a chain wheel by a servo mechanism assembly (7) to move along a welt in the opposite direction of the rotation of the rotor, considering that the chain wheel reaches the welt position relative to the rotor when detecting that the torque of the servo mechanism assembly (7) reaches 10NM, and recording the position of the chain wheel as Pos1 by an external profile sensor assembly (9) at the moment; the chain wheel reaches the welt position through torque judgment, and the whole adjusting mechanism is stressed at the moment; because the servo mechanism component (7) is adjusted in the positive direction and rotates in the opposite direction to the welting when the lockpin clearance is adjusted, the servo mechanism component can shake when moving in the opposite direction due to the previous welting force, and the adjustment angle changes greatly instantly or exceeds the set value of the 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 closed to release all the strain force freely, so that the servo mechanism assembly (7) can be adjusted smoothly during reverse adjustment; then, the servo mechanism assembly (7) is enabled to be opened in a delayed mode, the position of the current chain wheel is recorded as Pos2, and the PLC calculates the angle of Pos2-Pos1 and compares the angle with a set angle to judge the direction of the lock pin gap needing to be adjusted again; at the moment, the servo mechanism component (7) can carry out closed-loop adjustment until the set position is reached, and if the adjustment is not successful all the time, an error is reported;
(S6) final tightening: after the adjustment of the lock pin clearance is finished, synchronously screwing four electric tightening gun mechanism components (8) to ensure that the screw torque reaches 10NM;
(S7) adjusting and judging the clearance of the lock pin after final tightening: after the final tightening is completed, the profile sensor assembly (9) records the final sprocket position as Pos3, at which time Pos3-Pos1 is determined and compared to the lock pin clearance set value.
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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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