CN106813547B - Detection process for automobile frame longitudinal beam assembly - Google Patents
Detection process for automobile frame longitudinal beam assembly Download PDFInfo
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- CN106813547B CN106813547B CN201510859154.0A CN201510859154A CN106813547B CN 106813547 B CN106813547 B CN 106813547B CN 201510859154 A CN201510859154 A CN 201510859154A CN 106813547 B CN106813547 B CN 106813547B
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- 238000001514 detection method Methods 0.000 title claims abstract description 113
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000004088 simulation Methods 0.000 claims description 187
- 230000007306 turnover Effects 0.000 claims description 33
- 238000003825 pressing Methods 0.000 claims description 28
- 239000000428 dust Substances 0.000 claims description 3
- 238000011179 visual inspection Methods 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The invention discloses a detection process of an automobile frame longitudinal beam assembly, which comprises the following steps: 1) manufacturing a special detection die, and preparing various detection tools; 2) fixing the automobile frame longitudinal beam assembly on each positioning reference block, and performing position degree detection, flatness detection and gap detection on a product by using various detection tools and various detection devices on a detection die; 3) the finished product is placed on the CMM for product data acquisition. After the structure is adopted, the product can not shift all the time, so that the accumulated error during detection is reduced, and the detection data is more accurate.
Description
Technical Field
The invention relates to the technical field of checking tools, in particular to a detection process of an automobile frame longitudinal beam assembly for detecting the surface profile of a part and the position degree of each hole.
Background
The frame is the most important bearing part in the automobile, and the frame longitudinal beam is one of the key parts in the frame longitudinal beam, so the longitudinal beam plays an important bearing role on the automobile. The longitudinal beam is generally formed by stamping low alloy steel plates, the section shape is generally groove-shaped, and some longitudinal beams are made into Z-shaped or box-shaped sections. The automobile frame longitudinal beam assembly is provided with a plurality of mounting holes and a plurality of curved surfaces, so that the mounting holes and mounting surfaces are arranged in all directions, the whole structure is quite complex, the size with precision requirement is large, the flatness requirement is high, and the size detection of all parts of the automobile frame longitudinal beam assembly is required after the automobile frame longitudinal beam assembly is produced. At present, production is large, only the automobile frame longitudinal beam assembly is subjected to spot check, however, detection tools adopted by spot check are used for detecting parts to be detected on the automobile frame longitudinal beam assembly in turn one by one, for example, mounting holes on the parts can be dozens, one detection is very time-consuming, and the spot check cannot guarantee that all products meet requirements. In addition, due to measurement errors in the comparison process, detection data measured by the detection tool still need fine trimming, the detection process is complex, the period is long, the efficiency is low, and the errors are large.
Disclosure of Invention
The invention aims to solve the technical problem of providing a detection process of an automobile frame longitudinal beam assembly, which has the advantages of accurate detection, high efficiency and small error, thereby ensuring subsequent assembly and use.
In order to solve the technical problem, the invention provides a detection process of an automobile frame longitudinal beam assembly, which comprises the following steps:
1) firstly, manufacturing a special detection die, wherein the detection die comprises a bottom plate, a plurality of simulation blocks for positioning an automobile frame longitudinal beam assembly, a plurality of pressing clamp devices for locking the automobile frame longitudinal beam assembly on the simulation blocks and a plurality of turnover devices for positioning and inserting a part detection tool; the simulation blocks are connected to the bottom plate and sequentially arranged according to the shape of a product of the automobile frame longitudinal beam assembly, the pressing pliers devices are respectively positioned at two ends of the automobile frame longitudinal beam assembly, the turnover devices are distributed according to the positions of detection holes in the product, the bottoms of the turnover devices are fixed on the bottom plate, and the free turnover ends are positioned at the detection holes of the product; positioning surfaces for positioning are arranged on simulation blocks at two ends of an automobile frame longitudinal beam assembly, namely an A1 positioning block, an A2 positioning block, an A3 positioning block, an A4 positioning block, a B positioning pin and a C positioning pin;
2) preparing various detection tools, including a detection pin for detecting the position degree of each detection hole on the automobile frame longitudinal beam assembly, a no-go gauge or a dial indicator for detecting the upper profile of the automobile frame longitudinal beam assembly and a surface difference gauge for detecting the profile degree of the upper edge line of the automobile frame longitudinal beam assembly;
3) before starting detection, a detection person needs to perform visual inspection on a detection die to determine whether the detection die is in a usable state;
4) opening all the pressing pliers devices and the turnover devices to enable the whole pair of detection molds to be in a non-working state;
5) placing the automobile frame longitudinal beam assembly into the automobile frame longitudinal beam assembly, enabling the automobile frame longitudinal beam assembly to be tightly attached to an A1 positioning block, an A2 positioning block, an A3 positioning block and an A4 positioning block, inserting a B positioning pin and a C positioning pin, properly applying force to adjust positions, closing a pressing clamp device, and ensuring that each positioning surface is well contacted with a product; then, turning on the turning device to start to detect the product;
6) sequentially using the detection pins to detect the position degree of the hole sites on the automobile frame longitudinal beam assembly; if the product can normally pass through the device, the product is qualified, otherwise, the product is unqualified;
7) respectively and sequentially detecting gaps between the product and part of detection blocks on each turnover device by using stop gauges with various specifications to determine the surface profile of the product, wherein if the pass end can pass through the product smoothly and the stop end can not pass through the product, the product is qualified, otherwise, the product is unqualified;
8) detecting the profile degree of the molded surface of the product by using a dial indicator, resetting the numerical value to zero on a zero-aligning block by using the dial indicator before detection, and displaying that the data is qualified within +/-0.5 mm during detection, otherwise, the data is unqualified;
9) detecting the corresponding edge contour degree between the simulation block and the product by using a surface differential gauge, and if the edge is within a tolerance range, determining that the product is qualified, otherwise, determining that the product is unqualified;
10) after the detection is finished, opening all the pressing clamp devices, pulling out all the detection pins and the positioning pins, turning over all the turnover devices, enabling the detection tool to be in a non-working state, and taking down the automobile frame longitudinal beam assembly from the detection die;
11) if the next product is to be detected, repeating the steps; if the detection is finished, placing the device in a non-working state, and covering a dust cover;
12) and finally, placing the detected automobile frame longitudinal beam assembly on a CMM to acquire product data.
The simulation blocks comprise a first simulation block, a second simulation block, a third simulation block, a fourth simulation block, a fifth simulation block, a sixth simulation block, a seventh simulation block, an eighth simulation block, a ninth simulation block, a tenth simulation block, an eleventh simulation block and a twelfth simulation block which sequentially enclose a closed loop along the outline of the automobile frame longitudinal beam assembly; the simulation device comprises a simulation block I, a simulation block II, a simulation block III, a simulation block IV and a simulation block IV, wherein the simulation block III and the simulation block IV are respectively positioned at two ends of a product, the simulation block IV is positioned between the simulation block V and the simulation block VII, the simulation block twelve is in a transverse U; and a bottom plate in a closed loop formed by the simulation blocks is also sequentially connected with a simulation block thirteen, a simulation block fourteen and a simulation block fifteen along the length direction.
The A1 positioning block is connected to the first simulation block and presses a product tightly on the first simulation block through a pressing clamp device, the A2 positioning block is connected to the eleventh simulation block and presses the product tightly on the first simulation block through the pressing clamp device, the A3 positioning block is connected to the fifth simulation block and presses the product tightly on the first simulation block through the pressing clamp device, and the A4 positioning block is connected to the seventh simulation block and presses the product tightly on the first simulation block through the pressing clamp device; the positioning pin B is positioned on the simulation block twelve, and the positioning pin C is positioned on the simulation block six; seven detection pins which are arranged from top to bottom are arranged on the simulation block thirteen, the simulation block fourteen and the simulation block fifteen, and spring detection pins which are arranged from outside to inside in the horizontal direction are respectively arranged on the simulation block seven and the simulation block eleven.
The turning devices are four groups, the turning free ends of the first group of turning devices are positioned on the products in the U shape of the simulation block twelve, the turning free ends of the second group of turning devices and the third group of turning devices are both positioned on the products on the simulation block thirteen, and the turning free ends of the fourth group of turning devices are positioned on the products on the simulation block six; the turnover free ends of the first group of turnover devices, the second group of turnover devices and the third group of turnover devices are all provided with dial indicators, and the turnover free ends of the fourth group of turnover devices are provided with clamping plates.
In the step 7), the clearance between the clamping plate and the molded surface of the product is in the range of 2.5 mm-3.5 mm, a no-go gauge with the specification of phi 2.5mm at the through end and phi 3.5mm at the end is used for detecting the clearance at the clamping plate, if the through end can pass through smoothly and the end can not pass through, the product is qualified, otherwise, the product is unqualified; the rest gaps are detected by a go-no gauge with a go end of phi 1.5mm and a stop end of phi 4.5 mm.
In the step 9), the range of the gap between the edges of the two ends of the automobile frame longitudinal beam assembly and the simulation block is +/-1.5 mm, and a surface difference gauge with the specification of +/-1.5 mm is used for detecting the gap; the gap at the remaining edge of the product before the mock block ranged from 0.5mm and was measured using a face differential gauge of 0.5mm gauge.
The bottom of each simulation block sequentially encircled into a closed loop along the outline of the automobile frame longitudinal beam assembly is connected with the bottom plate through a support, the four bottoms and the eight bottoms of the simulation blocks are respectively provided with a support at two ends of each simulation block, and a space for the dial indicator to probe into is arranged between the two supports.
After the detection process is adopted, compared with the prior art, the method has the following advantages: because the special detection die is adopted, the automobile frame longitudinal beam assembly is fixed on the simulation block, and the detection is carried out by using the special detection tool, the product can not shift all the time in the detection process of a single product, so that the accumulated error in the detection is reduced, and the detection data is more accurate; meanwhile, the position degree, the surface profile and the side line profile of all mounting holes in the automobile frame longitudinal beam assembly can be detected at one time after one-time clamping, and the detection efficiency and the detection precision are greatly improved.
Drawings
FIG. 1 is a schematic top view of a detection mold in the detection process of the automobile frame rail assembly according to the present invention.
FIG. 2 is a schematic structural view of the automobile frame rail assembly during detection process.
Fig. 3 is a schematic view of the structure in the direction of a-a in fig. 2.
Fig. 4 is a schematic view of the structure in the direction B-B in fig. 2.
Fig. 5 is a schematic view of the structure in the direction C-C in fig. 2.
Fig. 6 is a schematic view of the structure in the direction D-D in fig. 2.
Fig. 7 is a schematic view of the structure in the direction E-E in fig. 2.
Wherein: 1. simulating a first block; 2. a second simulation block; 3. a third simulation block; 4. a fourth simulation block; 5. a fifth simulation block; 6. a simulation block six; 7. a simulation block seven; 8. an analog block eight; 9. a ninth simulation block; 10. a simulation block ten; 11. eleven simulation blocks; 12. a simulation block twelve; 13. a simulation block thirteen; 14. a simulation block fourteen; 15. a simulation block fifteen; 16. a1 locating block; 17. a2 locating block; 18. a3 locating block; 19. a4 locating block; 20. a base plate; 21. b, positioning pins; 22. c, positioning pins; 23. a detection pin; 24. a spring detection pin; 25. a clamp pressing device; 26. a turning device; 27. clamping a plate; 28. a support; 29. a support; 30. an automotive frame rail assembly; 31. and (4) a dial indicator.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
With reference to the schematic structural diagrams of the detection mold in the detection process of the automobile frame longitudinal beam assembly shown in fig. 1 to 7, the detection process of the automobile frame longitudinal beam assembly comprises the following steps:
1) firstly, manufacturing a special detection die, wherein the detection die comprises a bottom plate 20, a plurality of simulation blocks for positioning an automobile frame longitudinal beam assembly 30, a plurality of pressing pliers devices 25 for locking the automobile frame longitudinal beam assembly 30 on the simulation blocks and a plurality of turnover devices 26 for positioning and inserting a part detection tool; the simulation blocks are connected to the bottom plate 20 and are sequentially placed according to the product shape of the automobile frame longitudinal beam assembly 30, the pressing pliers devices 25 are respectively positioned at two ends of the automobile frame longitudinal beam assembly 30, the turnover devices 26 are distributed according to the positions of detection holes in the product, the bottoms of the turnover devices are fixed on the bottom plate 20, and the free turnover ends are positioned at the detection holes of the product; positioning blocks for positioning are arranged on the simulation blocks at two ends of the automobile frame longitudinal beam assembly 30, namely an A1 positioning block 16, an A2 positioning block 17, an A3 positioning block 18, an A4 positioning block 19, a B positioning pin 21 and a C positioning pin 22;
2) preparing various detection tools, including a detection pin 23 for detecting the position degree of each detection hole on the automobile frame longitudinal beam assembly 30, a stop gauge or a dial indicator 31 for detecting the upper profile of the automobile frame longitudinal beam assembly 30 and a surface difference gauge for detecting the profile degree of the upper edge line of the automobile frame longitudinal beam assembly 30;
3) before starting detection, a detection person needs to perform visual inspection on a detection die to determine whether the detection die is in a usable state;
4) opening all the pressing pliers devices and the turnover devices to enable the whole pair of detection molds to be in a non-working state;
5) placing the automobile frame longitudinal beam assembly 30 into the automobile frame longitudinal beam assembly, enabling the automobile frame longitudinal beam assembly to be tightly attached to an A1 positioning block 16, an A2 positioning block 17, an A3 positioning block 18 and an A4 positioning block 19, inserting a B positioning pin 21 and a C positioning pin 22, properly applying force to adjust positions, closing a pressing clamp device, and ensuring that each positioning surface is well contacted with a product; then, turning on the turning device to start to detect the product;
6) sequentially using the detection pins to detect the position degree of the hole sites on the automobile frame longitudinal beam assembly 30; if the product can normally pass through the device, the product is qualified, otherwise, the product is unqualified;
7) respectively and sequentially detecting gaps between the product and part of detection blocks on each turnover device by using stop gauges of various specifications to determine the surface profile of the product; the clearance range between the clamping plate 27 and the product molded surface is 2.5 mm-3.5 mm, a stop gauge with the specification of phi 2.5mm at the through end and phi 3.5mm at the end is used for detecting the clearance at the clamping plate 27, if the through end can pass through smoothly and the end can not pass through, the product is qualified, otherwise, the product is unqualified; detecting the rest gaps by using a go-no gauge with a go end of phi 1.5mm and a stop end of phi 4.5 mm;
8) detecting the profile degree of the molded surface of the product by using a dial indicator, resetting the numerical value to zero on a zero-aligning block by using the dial indicator before detection, and displaying that the data is qualified within +/-0.5 mm during detection, otherwise, the data is unqualified;
9) detecting the corresponding sideline profile degree between the simulation block and the product by using a surface differential gauge; the range of the gap between the edges of the two ends of the automobile frame longitudinal beam assembly 30 and the simulation block is +/-1.5 mm, and a surface differential gauge with the specification of +/-1.5 mm is used for detecting the gap; the range of the gap between the rest edge of the product and the front part of the simulation block is +/-0.5 mm, and a surface difference gauge with the specification of +/-0.5 mm is used for detecting the gap;
10) after the detection is finished, opening all the pressing clamp devices, pulling out all the detection pins and the positioning pins, turning over all the turnover devices, enabling the detection tool to be in a non-working state, and taking down the automobile frame longitudinal beam assembly 30 from the detection die;
11) if the next product is to be detected, repeating the steps; if the detection is finished, placing the device in a non-working state, and covering a dust cover;
12) finally, the detected automobile frame longitudinal beam assembly 30 is placed on the CMM to acquire product data.
The simulation blocks comprise a simulation block I1, a simulation block II 2, a simulation block III 3, a simulation block IV 4, a simulation block V5, a simulation block VI 6, a simulation block VII 7, a simulation block VIII 8, a simulation block IX 9, a simulation block XI 10, a simulation block XI 11 and a simulation block VII 12 which sequentially enclose a closed loop along the outline of the automobile frame longitudinal beam assembly 30; the simulation block six 6 and the simulation block twelve 12 are respectively positioned at two ends of the product, the simulation block six 6 is positioned between the simulation block five 5 and the simulation block seven 7, the simulation block twelve 12 is in a transverse U shape, and two free ends of the simulation block twelve 12 are respectively adjacent to the simulation block one 1 and the simulation block eleven 11; a simulation block thirteen 13, a simulation block fourteen 14 and a simulation block fifteen 15 are sequentially connected to the bottom plate 20 in the closed ring formed by the simulation blocks along the length direction.
The A1 positioning block 16 is connected to the first simulation block 1 and presses a product onto the simulation block through the pressing clamp device 25, the A2 positioning block 17 is connected to the eleventh simulation block 11 and presses the product onto the simulation block through the pressing clamp device 25, the A3 positioning block 18 is connected to the fifth simulation block 5 and presses the product onto the simulation block through the pressing clamp device 25, and the A4 positioning block 19 is connected to the seventh simulation block 7 and presses the product onto the simulation block through the pressing clamp device 25; the positioning pin B21 is positioned on the simulation block twelve 12, and the positioning pin C22 is positioned on the simulation block six 6; seven detection pins 23 arranged from top to bottom are arranged on the simulation block thirteen 13, the simulation block fourteen 14 and the simulation block fifteen 15, and spring detection pins 24 arranged from outside to inside in the horizontal direction are respectively arranged on the simulation block seventy 7 and the simulation block eleven 11.
The turning devices are four groups, the turning free ends of the first group of turning devices are positioned on the products in the U shape of the simulation block twelve 12, the turning free ends of the second group of turning devices and the third group of turning devices are both positioned on the products on the simulation block thirteen 13, and the turning free ends of the fourth group of turning devices are positioned on the products on the simulation block six 6; the turnover free ends of the first group of turnover devices, the second group of turnover devices and the third group of turnover devices are all provided with dial indicators 31, and the turnover free ends of the fourth group of turnover devices are provided with clamping plates 27.
The bottom of each simulation block sequentially encircled into a closed loop along the outline of the automobile frame longitudinal beam assembly 30 is connected with the bottom plate 20 through a support 28, wherein the bottoms of the simulation block IV 4 and the simulation block VIII 8 are respectively provided with supports 29 at two ends of the simulation block, and a space for the dial indicator 31 to penetrate into is arranged between the two supports 29.
The above description is only a preferred embodiment of the present invention, and it should not be understood that the scope of the present invention is limited thereby, and it should be understood by those skilled in the art that various other modifications and equivalent arrangements can be made by applying the technical solutions and concepts of the present invention within the scope of the present invention as defined in the appended claims.
Claims (5)
1. The detection process of the automobile frame longitudinal beam assembly is characterized in that: it comprises the following steps:
1) firstly, manufacturing a special detection die, wherein the detection die comprises a bottom plate (20), a plurality of simulation blocks for positioning an automobile frame longitudinal beam assembly (30), a plurality of pressing pliers devices (25) for locking the automobile frame longitudinal beam assembly (30) on the simulation blocks and a plurality of turnover devices (26) for positioning and inserting a part detection tool; the simulation blocks are connected to the bottom plate (20) and are sequentially placed according to the product shape of the automobile frame longitudinal beam assembly (30), the pressing pliers devices (25) are respectively positioned at two ends of the automobile frame longitudinal beam assembly (30), the turnover devices (26) are distributed according to the positions of detection holes in the product, the bottoms of the turnover devices are fixed on the bottom plate (20), and the free turnover ends are positioned at the detection holes of the product; positioning blocks for positioning are arranged on simulation blocks at two ends of an automobile frame longitudinal beam assembly (30), namely an A1 positioning block (16), an A2 positioning block (17), an A3 positioning block (18), an A4 positioning block (19), a B positioning pin (21) and a C positioning pin (22);
the simulation blocks comprise a first simulation block (1), a second simulation block (2), a third simulation block (3), a fourth simulation block (4), a fifth simulation block (5), a sixth simulation block (6), a seventh simulation block (7), an eighth simulation block (8), a ninth simulation block (9), a tenth simulation block (10), an eleventh simulation block (11) and a twelfth simulation block (12) which sequentially enclose a closed loop along the outline of the automobile frame longitudinal beam assembly (30); the simulation device comprises a simulation block I (1), a simulation block II (12), a simulation block II (6), a simulation block III (7), a simulation block III (6), a simulation block III (12), a simulation block III (5), a simulation block III (7), a simulation block III (12), a simulation block III (1), a simulation block III (12), a simulation block III (11), a simulation block III (6), a simulation block IV (12), a simulation block IV (1), a simulation block IV (11), a simulation block IV; a bottom plate (20) in a closed ring formed by the simulation blocks is also sequentially connected with a simulation block thirteen (13), a simulation block fourteen (14) and a simulation block fifteen (15) along the length direction;
the A1 positioning block (16) is connected to the first simulation block (1) and presses a product on the simulation block through a pressing clamp device (25), the A2 positioning block (17) is connected to the eleventh simulation block (11) and presses the product on the simulation block through the pressing clamp device (25), the A3 positioning block (18) is connected to the fifth simulation block (5) and presses the product on the simulation block through the pressing clamp device (25), and the A4 positioning block (19) is connected to the seventh simulation block (7) and presses the product on the simulation block through the pressing clamp device (25); the positioning pin B (21) is positioned on the simulation block twelve (12), and the positioning pin C (22) is positioned on the simulation block six (6); seven detection pins (23) which are arranged from top to bottom are arranged on the simulation block thirteen (13), the simulation block fourteen (14) and the simulation block fifteen (15), and spring detection pins (24) which are arranged from outside to inside in the horizontal direction are respectively arranged on the simulation block seven (7) and the simulation block eleven (11);
2) preparing various detection tools, including a detection pin (23) for detecting the position degree of each detection hole on the automobile frame longitudinal beam assembly (30), a stop gauge or a dial indicator (31) for detecting the upper contour of the automobile frame longitudinal beam assembly (30) and a surface difference gauge for detecting the upper contour degree of the automobile frame longitudinal beam assembly (30);
3) before starting detection, a detection person needs to perform visual inspection on a detection die to determine whether the detection die is in a usable state;
4) opening all the pressing pliers devices and the turnover devices to enable the whole pair of detection molds to be in a non-working state;
5) placing the automobile frame longitudinal beam assembly (30) to be tightly attached to an A1 positioning block (16), an A2 positioning block (17), an A3 positioning block (18) and an A4 positioning block (19), inserting a B positioning pin (21) and a C positioning pin (22), properly applying force to adjust the positions, closing a pressing clamp device, and ensuring that each positioning surface is well contacted with a product; then, turning on the turning device to start to detect the product;
6) detecting the position degree of hole sites on the automobile frame longitudinal beam assembly (30) by using all the detection pins in sequence; if the product can normally pass through the device, the product is qualified, otherwise, the product is unqualified;
7) respectively and sequentially detecting gaps between the product and part of detection blocks on each turnover device by using stop gauges with various specifications to determine the surface profile of the product, wherein if the pass end can pass through the product smoothly and the stop end can not pass through the product, the product is qualified, otherwise, the product is unqualified;
8) detecting the profile degree of the molded surface of the product by using a dial indicator, resetting the numerical value to zero on a zero-aligning block by using the dial indicator before detection, and displaying that the data is qualified within +/-0.5 mm during detection, otherwise, the data is unqualified;
9) detecting the corresponding edge contour degree between the simulation block and the product by using a surface differential gauge, and if the edge is within a tolerance range, determining that the product is qualified, otherwise, determining that the product is unqualified;
10) after the detection is finished, opening all the pressing clamp devices, pulling out all the detection pins and the positioning pins, turning over all the turnover devices, enabling the detection tool to be in a non-working state, and taking down the automobile frame longitudinal beam assembly (30) from the detection die;
11) if the next product is to be detected, repeating the steps; if the detection is finished, placing the device in a non-working state, and covering a dust cover;
12) finally, the detected automobile frame longitudinal beam assembly (30) is placed on the CMM to acquire product data.
2. The process for detecting the automobile frame rail assembly according to claim 1, wherein: the turning devices are four groups, the turning free ends of the first group of turning devices are positioned on the product in the U shape of the simulation block twelve (12), the turning free ends of the second group of turning devices and the third group of turning devices are both positioned on the product on the simulation block thirteen (13), and the turning free ends of the fourth group of turning devices are positioned on the product on the simulation block six (6); the turning free ends of the first group turning device, the second group turning device and the third group turning device are all provided with dial indicators (31), and the turning free ends of the fourth group turning device are provided with clamping plates (27).
3. The process for detecting the automobile frame rail assembly according to claim 2, wherein: in the step 7), the clearance between the clamping plate (27) and the molded surface of the product is in the range of 2.5 mm-3.5 mm, a no-go gauge with the specification of phi 2.5mm at the through end and phi 3.5mm at the end is used for detecting the clearance at the clamping plate (27), if the through end can pass through smoothly and the end can not pass through, the product is considered to be qualified, otherwise, the product is unqualified; the rest gaps are detected by a go-no gauge with a go end of phi 1.5mm and a stop end of phi 4.5 mm.
4. The process for detecting the automobile frame rail assembly according to claim 1, wherein: in the step 9), the range of the gap between the edges of the two ends of the automobile frame longitudinal beam assembly (30) and the simulation block is +/-1.5 mm, and a surface difference gauge with the specification of +/-1.5 mm is used for detecting the gap; the gap at the remaining edge of the product before the mock block ranged from 0.5mm and was measured using a face differential gauge of 0.5mm gauge.
5. The process for detecting the automobile frame rail assembly according to claim 1, wherein: the bottom of each simulation block sequentially enclosing into a closed loop along the outline of the automobile frame longitudinal beam assembly (30) is connected with the bottom plate (20) through a support (28), wherein the bottoms of the simulation blocks IV (4) and eight (8) are respectively provided with supports (29) at two ends of the simulation block, and a space for the dial indicator (31) to probe into is arranged between the two supports (29).
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| CN201510859154.0A CN106813547B (en) | 2015-11-29 | 2015-11-29 | Detection process for automobile frame longitudinal beam assembly |
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| CN107367209A (en) * | 2017-07-10 | 2017-11-21 | 芜湖顺威智能科技有限公司 | A kind of U-shaped decoration light guide bracket detecting tool |
| CN108981522A (en) * | 2018-05-24 | 2018-12-11 | 宁波科诺精工科技有限公司 | The hole location detecting device of aluminum section for automobile |
| CN109443137A (en) * | 2018-12-26 | 2019-03-08 | 苏州和瑞机械科技有限公司 | A kind of cubing of automobile combined switch |
| CN110736405B (en) * | 2019-11-14 | 2021-06-15 | 北京汽车集团越野车有限公司 | Utensil is examined to frame |
| CN111551100A (en) * | 2020-06-16 | 2020-08-18 | 昆山合力泰汽车检具有限公司 | Left rear side wall triangular window assembly checking fixture |
| CN111692944A (en) * | 2020-06-19 | 2020-09-22 | 深圳数码模汽车技术有限公司 | Spiral positioning and detection set same-detection hole site and trimming line device |
| CN114413710B (en) * | 2022-01-14 | 2024-03-19 | 一汽解放汽车有限公司 | Frame assembly gauge |
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| CN103196342B (en) * | 2013-03-15 | 2016-06-01 | 奇瑞汽车股份有限公司 | The detection method of a kind of automobile rear seat assembly checking tool |
| CN203758447U (en) * | 2014-03-31 | 2014-08-06 | 浙江舜仕汽车技术有限公司 | Checking tool for car door stiffeners |
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Denomination of invention: Inspection process of automobile frame longitudinal beam assembly Effective date of registration: 20231211 Granted publication date: 20200110 Pledgee: China Co. truction Bank Corp Yuyao branch Pledgor: ZHEJIANG SHUNSHI AUTOMOBILE TECHNOLOGY Co.,Ltd. Registration number: Y2023980070275 |