CN112792484A - Cushion block for accurately adjusting machine cover surface difference and adjusting method - Google Patents
Cushion block for accurately adjusting machine cover surface difference and adjusting method Download PDFInfo
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- CN112792484A CN112792484A CN202110141767.6A CN202110141767A CN112792484A CN 112792484 A CN112792484 A CN 112792484A CN 202110141767 A CN202110141767 A CN 202110141767A CN 112792484 A CN112792484 A CN 112792484A
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000003466 welding Methods 0.000 claims abstract description 15
- 238000005259 measurement Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 239000012467 final product Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims 4
- 238000006073 displacement reaction Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 5
- 238000003908 quality control method Methods 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 description 10
- 238000004088 simulation Methods 0.000 description 9
- 238000001514 detection method Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
- B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
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Abstract
The invention discloses a cushion block and an adjusting method for accurately adjusting the surface difference of a machine cover, which are used for assisting the measurement of the surface difference value of a machine cover and a fender on a welding adjusting line of a vehicle. The invention can be used on a welding adjusting line in the process of manufacturing automobiles, plays a role of a gauge and a tool, and plays an important role in offline and quality control and monitoring of vehicles on the welding adjusting line.
Description
Technical Field
The invention discloses an adjusting cushion block, belongs to the technical field of detection of vehicle welding line detection tools, and particularly discloses a machine cover surface difference accurate adjusting cushion block and an adjusting method.
Background
Two height-adjustable rubber cushion blocks are arranged in the design of a hood product of a car and are used for adjusting the surface difference between the whole car hood and a wing, correcting the size deviation caused by each manufacturing process and ensuring that the product delivered to customers is aesthetically up to standard. However, the adjustment amount of the rubber cushion block is in a certain range, so that strict quality control of each process is required in mass production, and deviation exceeding the adjustment amount of the rubber cushion block is prevented. The vehicle that welds the dress adjustment line and send to the application in the process management and control needs to install the simulation cushion (a steel, highly can quantitative quick convenient regulation, stand wear and tear frock of used repeatedly), plays the effect of frock and gauge, ensures that aircraft bonnet, fender under the prerequisite of poor leveling of face, clearance quality is up to standard (if clearance unqualified reprocess back check until qualified), and carry out 100% inspection, prevent that the defective products from flowing. The first traditional mode is as follows: the height H of the simulation cushion block is not adjustable (only has a fixed and unchangeable nominal value height); the second method comprises the following steps: the height is adjusted by rotating the screw rod leftwards and rightwards. The first mode has the advantages and disadvantages: the gap of a certain proportion of vehicles cannot be accurately judged due to the fact that the manufacturing deviation of the hood and the difference of the plate surfaces of the wings cannot be qualified; the second mode has the following advantages and disadvantages: the manufacturing deviation can be compensated, and the gap condition can be checked on the premise that the plate surface difference of the hood and the wing is qualified. However, both of the two methods cannot intuitively and accurately quantify the value of the height H to be adjusted of the simulation cushion block, cannot perform quantitative analysis, cannot provide effective data for monitoring the geometric dimension and problem analysis, and cannot meet the high target requirements of aesthetics and sensory quality.
Prior art CN208181208U discloses a front fender height adjustment mechanism and vehicle, wherein front fender height adjustment mechanism includes: side wall end plate fixed part, screw rod portion and height control knob. The screw rod part is fixed on the side wall end plate fixing part; the height adjusting knob cover is established on the screw rod portion, height adjusting knob with screw rod portion threaded connection is so that height adjusting knob is relative the position of screw rod portion is adjustable, height adjusting knob includes the front fender fixed part. The above-mentioned prior art cannot realize the quantitative measurement function.
The prior art CN210741284U specifically discloses a multifunctional feeler for building engineering detection, which comprises a feeler whole, a telescopic mechanism, a measuring mechanism and a wedge-shaped ruler, wherein one side of the feeler whole is fixedly connected with the measuring mechanism, one side of the measuring mechanism is fixedly connected with the wedge-shaped ruler, the other side of the measuring mechanism is fixedly connected with an illuminating part, one side of the wedge-shaped ruler is connected with a vernier buckle in a nesting manner, the middle position in front of the illuminating part is embedded and connected with a switch, the other side of the feeler whole is fixedly connected with the telescopic mechanism, the telescopic mechanism is arranged at the other side of the feeler whole, the telescopic mechanism can stretch the whole length of the feeler and can bend the feeler, after the measuring angle of the feeler is adjusted and the feeler is used, the telescopic cylinder can be contracted by pressing inwards, the storage size of the feeler is reduced, the feeler is convenient to carry, and the feeler, the convenience of the use of the feeler is effectively improved. The above-mentioned prior art cannot realize the quantitative measurement function.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a cushion block for accurately adjusting the cover surface difference and an adjusting method, which can be used on a welding adjusting line in the process of manufacturing automobiles, play a role of a gauge and a tool and play an important role in offline and quality control and monitoring of vehicles on the welding adjusting line.
The invention discloses a cover surface difference accurate adjusting cushion block which is used for assisting in measuring the difference value between the upper hood and a fender surface of a welding adjusting line of a vehicle and comprises an upper cushion block and a lower cushion block which are coaxially arranged, wherein a magnet for adsorbing a hood is arranged at the upper part of the upper cushion block, the upper cushion block and the lower cushion block are connected through an elastic guide assembly, the lower cushion block can move along the axial direction of the lower cushion block, the lower cushion block can rotate along the central axis of the lower cushion block, and a height adjusting assembly capable of converting the circumferential rotation motion of the lower cushion block into axial linear motion is arranged between the upper cushion block and the lower cushion block.
In a preferred embodiment of the present invention, the elastic guide assembly includes a spring seat coaxially and fixedly connected to the upper cushion block and a positioning pin coaxially and fixedly connected to the lower cushion block, a spring is sleeved on the positioning pin, and the spring is located between the spring seat and the lower cushion block.
In a preferred embodiment of the present invention, the height adjusting assembly includes spiral steps disposed on the lower end surface of the upper pad and the upper end surface of the lower pad and arranged in a spiral line along the central axis of the upper pad, and the height lift H between the upper pad and the lower pad along the axial direction is equal to the height L of the spiral step x the number N of the spiral steps.
In a preferred embodiment of the invention, the height L of the spiral steps may be 0.5mm, 0.2mm or 0.1 mm.
In a preferred embodiment of the present invention, the outer peripheral surfaces of the upper pad and the lower pad are provided with zero-position score lines arranged along the axial direction thereof.
In a preferred embodiment of the present invention, the upper pad and the lower pad are both circular.
The invention also discloses a method for accurately adjusting the difference of the machine cover surface, which is characterized in that a cushion block for accurately adjusting the difference of the machine cover surface is assembled between the machine cover and the fender, the difference of each measuring point surface around the machine cover is measured by taking the fender as a reference, and whether the difference is qualified is judged; if not, analyzing and determining the adjusting direction and the adjusting amount of the adjusting cushion block according to the measured surface difference value; adjusting the adjusting cushion block based on the adjusting direction and the adjusting amount of the adjusting cushion block, reassembling the adjusted adjusting cushion block between the hood and the fender, measuring the surface difference of each measuring point on the periphery of the hood by taking the fender as a reference again, judging whether the hood is qualified or not, and repeating the steps until the hood is qualified if the hood is unqualified; and adjusting the hood clamp on the vehicle welding production line based on the finally determined adjusting direction and adjusting amount of the adjusting cushion block.
In a preferred embodiment of the invention, the hood measurement points are characteristic points that identify the level of clearance surface differences on the hood reflecting the entire vehicle, ensure the achievement of the final product matching specifications, and are visually sensitive to the user.
In a preferred embodiment of the present invention, the method for analyzing and determining the adjustment direction of the adjustment pad and the adjustment method according to the measured surface difference value comprises: step one, acquiring the surface difference value of each measuring point of each vehicle through a surface difference gauge, taking the average number P of the surface difference value, if the average number is larger than 0.5, adjusting the cushion block to be low, if the average number is smaller than-0.5, adjusting the cushion block to be high, and adjusting the number of steps N of the spiral line to be P/L.
In a preferred embodiment of the present invention, the method for adjusting the hood fixture on the vehicle welding line based on the finally determined adjustment direction and adjustment amount of the adjustment pad is that the height of the hood fixture is equal to the number N of spiral steps after adjustment by the adjustment pad by the number N of spiral steps, and the lifting direction of the hood fixture is the same as the lifting direction of the adjustment pad.
In a preferred embodiment of the present invention, the passing is determined if and only if the average of the measured values of the surface differences at the measuring points of the hood periphery with respect to the fender is within 0 ± 0.5.
The invention has the beneficial effects that: the invention has the advantages of simple and ingenious structural design, low cost and wide application, can simultaneously play the roles of a gauge and a tool, simultaneously and effectively monitor the size and the quality of the automobile, is completely different from the traditional tool, and can be widely applied to the detection and the correction of hoods of various automobile types; the method can effectively prevent the defect of poor appearance from being sent to the next procedure, and is an important link for quality control.
Drawings
FIG. 1 is a front elevation view of a cover differential precision adjustment block of the present invention;
FIG. 2 is a cross-sectional view A-A of a mat for fine adjustment of the surface differences of a machine of the present invention;
FIG. 3 is a rear elevation view of an adjustable fine adjustment pad for the cover surface differences according to the present invention;
FIG. 4 is a cross-sectional view B-B of a cover surface differential precision adjustment block of the present invention;
fig. 5 is a schematic view of the positions of the measurement points around the hood of a certain vehicle type.
Detailed Description
The invention will now be described in further detail, including the preferred embodiments, with reference to the accompanying drawings and by way of illustration of some alternative embodiments of the invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
The invention discloses a cushion block for accurately adjusting the surface difference of a machine cover, which is used for assisting the measurement of the surface difference value of a machine cover and a fender on a welding adjustment line of a vehicle, and comprises an upper cushion block 1 and a lower cushion block 3 which are coaxially arranged, wherein the upper part of the upper cushion block 1 is provided with a magnet 2 for adsorbing the machine cover, the upper cushion block 1 is connected with the lower cushion block 3 through an elastic guide assembly, the lower cushion block 3 can move along the axial direction of the lower cushion block, the lower cushion block 3 can rotate along the central axis of the lower cushion block, and a height adjusting assembly capable of converting the circumferential rotation motion of the lower cushion block 3 into axial linear motion is arranged between the upper cushion block 1 and the lower cushion.
Preferably, the elastic guide assembly comprises a spring seat 5 coaxially and fixedly connected to the upper cushion block 1 and a positioning pin 6 coaxially and fixedly connected to the lower cushion block 3, a spring 4 is sleeved on the positioning pin 6, and the spring 4 is located between the spring seat 5 and the lower cushion block 3.
Preferably, the height-adjusting assembly is provided with the helix step that is the helix type and arranges along the axis of last cushion 1 and lower cushion 3 on setting up relative terminal surface between last cushion 1 and lower cushion 3 (i.e. the lower terminal surface of last cushion 1 and the up end of lower cushion 3), and height lift H along the axial between last cushion 1 and the lower cushion 3 is helical line step's height L ═ helix step number N. It should be noted that the height adjusting assembly is not limited to the above embodiments, and the height adjusting assembly may be a lockable screw assembly or a worm and gear assembly, as long as it can convert the circumferential rotation motion into the axial linear motion.
Preferably, the outer peripheral surfaces of the upper cushion block 1 and the lower cushion block 3 are provided with zero-position scribed lines arranged along the axial direction of the upper cushion block and the lower cushion block.
Preferably, the upper cushion block 1 and the lower cushion block 3 are both circular rings, and the outer circumference diameter is preferably 30 mm.
Preferably, the upper cushion block 1 and the lower cushion block 3 can be prepared by hardening and tempering 45# steel, have the characteristics of wear resistance and no deformation under the condition of heavy pressure at HRC48, and are suitable for mass production lines.
Preferably, the simulation cushion block has the function of a gauge, is machined by high-precision machining equipment according to the standard of the checking fixture, has the precision within 0.05mm, and is a gauge suitable for being used in a special environment.
When using the adjustment cushion, the difference of terminal surface difference in height H about the cushion about realizing through rotatory angle difference, the adjacent helix step difference in height of the upper and lower cushion of this embodiment is 0.5mm, and the total 16 steps of helix, the maximum lift can reach 16 x 0.5 ═ 8 mm. The circumferential direction of the upper cushion block can be marked with scales, the number of steps of the lower cushion block rotating relative to the upper cushion block can be recorded, and then the height difference H (lift) of the upper end face and the lower end face of the upper cushion block and the lower cushion block along the axial direction is obtained by multiplying the number of the rotating steps by 0.5. Zero-position scribed lines are arranged on the upper cushion block and the lower cushion block, and when the upper cushion block and the lower cushion block rotate to the alignment position of the scribed lines, the height of a theoretical value is obtained.
The invention also discloses a method for accurately adjusting the difference of the machine cover surface, which is characterized in that a cushion block for accurately adjusting the difference of the machine cover surface is assembled between the machine cover and the fender, the difference of each measuring point surface around the machine cover is measured by taking the fender as a reference, and whether the difference is qualified is judged; if not, analyzing and determining the adjusting direction and the adjusting amount of the adjusting cushion block according to the measured surface difference value; adjusting the adjusting cushion block based on the adjusting direction and the adjusting amount of the adjusting cushion block, reassembling the adjusted adjusting cushion block between the hood and the fender, measuring the surface difference of each measuring point on the periphery of the hood by taking the fender as a reference again, judging whether the hood is qualified or not, and repeating the steps until the hood is qualified if the hood is unqualified; and adjusting the hood clamp on the vehicle welding production line based on the finally determined adjusting direction and adjusting amount of the adjusting cushion block.
Preferably, the hood measurement points are feature points capable of identifying a level of clearance surface difference reflecting the whole vehicle on the hood, ensuring achievement rate of matching specification of a final product and being sensitive to visual inspection of a user.
Preferably, the method for analyzing and determining the adjustment direction of the adjustment cushion block and the adjustment method according to the measured surface difference value comprises the following steps: step one, acquiring the surface difference value of each measuring point of each vehicle through a surface difference gauge, taking the average number P of the surface difference value, if the average number is larger than 0.5, adjusting the cushion block to be low, if the average number is smaller than-0.5, adjusting the cushion block to be high, and adjusting the number of steps N of the spiral line to be P/L.
Preferably, the method for adjusting the hood fixture on the vehicle welding production line based on the finally determined adjustment direction and adjustment amount of the adjustment cushion block is that the height of the hood fixture is equal to the number N of spiral steps adjusted by the adjustment cushion block plus the height L of the spiral steps, and the lifting direction of the hood fixture is consistent with the lifting direction of the adjustment cushion block.
Preferably, the evaluation is passed if and only if the average value of the measured values of the surface differences of the measuring points of the hood periphery measured with respect to the fender is in the range of 0 ± 0.5.
The method for verifying the plane cover difference of a certain vehicle type and adjusting the plane cover difference comprises the following specific steps:
firstly, the simulation cushion blocks are adjusted to theoretical positions, namely, two thick black lines of an upper block and a lower block are aligned. And then the simulation cushion block is arranged in a corresponding positioning hole of the inner plate of the hood (the simulation cushion block is magnetically adsorbed on a metal plate to ensure that the simulation cushion block does not fall off).
Secondly, closing the hood, measuring the surface difference of 13 points around the hood, and obtaining data before adjustment as shown in the following table 1, wherein the data is unqualified.
TABLE 1
Remarking: the selected total measuring points and the measuring point positions are correspondingly changed according to different models of the engine cover. Therefore, different vehicle types are different, but the selection principle is the same: the process quality control points are the characteristic points which can reflect the gap plane difference level of the whole automobile, ensure the achievement rate of the final product matching specification and ensure the visual sensitivity of a user on the engine cover, and the aesthetic quality can be effectively improved by controlling the points, so that the aesthetic requirements of the user are met. For example: in the modeling shown in the figure, the 1-13 point area interface is a hood and a front windshield, the requirement of surface difference is avoided, the gap is not sensitive, the existing manufacturing level can meet the functional requirement, and therefore, a measuring point does not need to be selected; the 4-5/9-10 point area interface is a hood and a headlamp, the shape of the hood covers the headlamp, the requirement of surface difference is avoided, the gap is not sensitive, and measuring points are not selected (if the shape is that the hood and the headlamp have a butt joint plane, 2-3 measuring points are selected).
Analyzing the measured data: the measurement result obtained by taking the fender as a reference reflects that the average value of 13 point positions of each vehicle (4 vehicles measured in total) is 0.90-1.03, and each hood is about 1mm higher than the whole fender, so that the stability is good and the consistency is strong. According to the normal distribution principle, the median value of each point is shifted by +1mm, and the median value must be adjusted to a design theoretical value, that is, a state where the shift amount is 0. Therefore, the finished automobile quality target requirement can be met, the appearance aesthetic requirement of customers is met, and the appearance quality is free of defects. (wherein, the average value of 1-6 points is used for analyzing the adjustment direction and adjustment amount of the left cushion block, when the value is the adjustment height of the negative cushion block, and when the value is the adjustment height of the positive cushion block, and the average value of 8-13 points is used for analyzing the adjustment direction and adjustment amount of the right cushion block, when the value is the adjustment height of the negative cushion block, and when the value is the adjustment height of the positive cushion block, the value is the adjustment.
Fourthly, rotating the lower block of the simulation cushion block rightly for two grids (the height of the upper cushion block and the lower cushion block is reduced by 1 mm).
And fifthly, reassembling the adjusted cushion blocks on the inner plate of the hood, and measuring the surface difference of 13 points at the same position on the periphery of the hood to obtain the qualified product.
And (4) conclusion: the measurement result is qualified after the cushion block is reduced, which indicates that the mounting surface of the hood on the vehicle body is higher by 1mm in the Z direction, and the mounting surface needs to be improved by adjusting the clamp and is cured after the quality is optimally improved. The specific method comprises the following steps: the height of the hood is determined by a Z-direction mounting surface of a hood hinge on a vehicle body, and a side wall sub-assembly clamp or a front cabin sub-assembly clamp is adjusted (the structural mode of the vehicle body is analyzed to determine which procedure is specifically adjusted).
It should be understood that the above-mentioned embodiments are merely exemplary of the present invention, and not restrictive, and that any modifications, combinations, substitutions, improvements, etc. made within the spirit and scope of the present invention are included in the present invention.
Claims (10)
1. The utility model provides a poor accurate adjustment cushion of mat facing which characterized in that: it is used for assisting the measurement of aircraft bonnet and fender face difference numerical value on vehicle welding adjustment line, last cushion (1) and lower cushion (3) including coaxial arrangement, upward be provided with magnet (2) that are used for adsorbing the aircraft bonnet on cushion (1), go up cushion (1) with connect through elastic guide subassembly down between cushion (3), its axial displacement can be followed down cushion (3), cushion (3) can be followed its axis rotation down, go up cushion (1) with be provided with the height-adjusting subassembly that can convert the circumference rotary motion of cushion (3) down into axial rectilinear movement down between cushion (3).
2. The bonnet surface differential fine adjustment spacer of claim 1, wherein: the elastic guide assembly comprises a spring seat (5) and a positioning pin (6), wherein the spring seat (5) is coaxially fixedly connected to the upper cushion block (1), the positioning pin (6) is coaxially fixedly connected to the lower cushion block (3), the positioning pin (6) is sleeved with a spring (4), and the spring (4) is located between the spring seat (5) and the lower cushion block (3).
3. The bonnet surface differential fine adjustment spacer of claim 1, wherein: the height-adjusting assembly comprises spiral line steps which are arranged on the lower end face of the upper cushion block (1) and the upper end face of the lower cushion block (3) along the central axis of the upper cushion block (1) in a spiral line mode, and the height lift H of the upper cushion block (1) and the lower cushion block (3) along the axial direction is equal to the height L of the spiral line steps.
4. The bonnet surface differential fine adjustment spacer of claim 1, wherein: zero position scribed lines arranged along the axial direction of the upper cushion block (1) and the lower cushion block (3) are arranged on the outer peripheral surfaces of the upper cushion block and the lower cushion block.
5. The bonnet surface differential fine adjustment spacer of claim 1, wherein: the upper cushion block (1) and the lower cushion block (3) are both circular.
6. A method for accurately adjusting the cover surface difference is characterized by comprising the following steps: assembling the fine adjustment pad for the difference in the cover surface according to any one of claims 1 to 5 between the hood and the fender, measuring the difference in the surface of each measurement point around the hood with reference to the fender, and judging whether the difference is acceptable; if not, analyzing and determining the adjusting direction and the adjusting amount of the adjusting cushion block according to the measured surface difference value; adjusting the adjusting cushion block based on the adjusting direction and the adjusting amount of the adjusting cushion block, reassembling the adjusted adjusting cushion block between the hood and the fender, measuring the surface difference of each measuring point on the periphery of the hood by taking the fender as a reference again, judging whether the hood is qualified or not, and repeating the steps until the hood is qualified if the hood is unqualified; and adjusting the hood clamp on the vehicle welding production line based on the finally determined adjusting direction and adjusting amount of the adjusting cushion block.
7. The method for accurately adjusting the difference in the hood surface according to claim 6, wherein: the hood measuring points are characteristic points which can identify the level of the gap surface difference of the whole vehicle reflected on the hood, ensure the achievement rate of the matching specification of the final product and ensure the visual sensitivity of a user.
8. The method for accurately adjusting the difference in the hood surface according to claim 6, wherein: the method for analyzing and determining the adjusting direction of the adjusting cushion block and the adjusting method according to the measured surface difference value comprises the following steps: step one, acquiring the surface difference value of each measuring point of each vehicle through a surface difference gauge, taking the average number P of the surface difference value, if the average number is larger than 0.5, adjusting the cushion block to be low, if the average number is smaller than-0.5, adjusting the cushion block to be high, and adjusting the number of steps N of the spiral line to be P/L.
9. The method for accurately adjusting the difference in the hood surface according to claim 6, wherein: the method for adjusting the hood fixture on the vehicle welding production line based on the finally determined adjustment direction and adjustment amount of the adjustment cushion block comprises the following steps of adjusting the height N of the spiral line steps after the height of the hood fixture is equal to the height L of the spiral line steps after the adjustment of the adjustment cushion block, and enabling the lifting direction of the hood fixture to be consistent with the lifting direction of the adjustment cushion block.
10. The method for accurately adjusting the difference in the hood surface according to claim 6, wherein: and if and only if the average value of the surface difference measurement values of the measurement points around the hood measured by taking the fender as a reference is within the range of 0 +/-0.5, the measurement is qualified.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110141767.6A CN112792484A (en) | 2021-02-01 | 2021-02-01 | Cushion block for accurately adjusting machine cover surface difference and adjusting method |
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| CN202110141767.6A CN112792484A (en) | 2021-02-01 | 2021-02-01 | Cushion block for accurately adjusting machine cover surface difference and adjusting method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115008368A (en) * | 2022-06-14 | 2022-09-06 | 深圳市格灵精睿视觉有限公司 | Positioning tooling |
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- 2021-02-01 CN CN202110141767.6A patent/CN112792484A/en active Pending
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