A laser tooling fixture for adjusting the gap between the laser housing and the fender, and its usage method.

Abstract

This invention relates to a laser tooling fixture for adjusting the gap between the hood and the fender and its usage method. The fixture includes a positioning connecting rod, three positioning rotating rods, three telescopic connecting rods, a slide rail assembly, three laser instruments, and a battery control unit. After the vehicle body is calibrated according to its existing dimensions, the laser-emitted light reaches the distance value displayed on the part's plane. After three laser instrument position adjustments on the fixture, the operator assembles it onto the floor longitudinal beam. The hood and fender are adjusted according to the laser instrument's data standards plus tolerance range. The fender and hood are visually inspected and pushed left and right until the required value is reached on the display screen. The bolts of the hood and fender are then tightened. This invention reduces the significant rework time and personnel costs associated with final assembly quality issues, solves the problems of inconsistent and difficult welding adjustments, and addresses the issues of excessively long rework time and damaged parts after welding assembly problems occur.

Description

Technical Field

[0001] This invention belongs to the field of equipment tooling technology, and relates to a laser tooling auxiliary for adjusting the gap between the laser cover and the fender, and its usage method. Background Technology

[0002] Tooling fixtures are simplified fixtures used by automobile manufacturers to control the processing and assembly of automotive parts, improving production efficiency and quality control. They are suitable for mass-produced products, such as the assembly quality of automotive assembly parts, replacing the need for specialized manual adjustments. In automobile production, the hood and fender assemblies need to be assembled. Existing non-automated assemblies for hoods and fenders can only assemble the parts, failing to meet adjustment accuracy requirements, and their positions are not unique. The accuracy of vehicle body dimensions has always been affected by the precision of parts, fixtures, and welding processes, making it difficult to guarantee accuracy stability. Currently, after assembly, manual adjustments are required to match the gap between the hood and fender, using wedge-shaped... Two people, one on each side, measure and adjust simultaneously. Inaccurate measurements during vehicle operation on the production line lead to long adjustment times, impacting production rhythm. Unstable accuracy results in strenuous manual adjustments that don't meet ergonomic requirements. Existing welding assembly fixtures need to be removed during assembly and adjustment. Adjustments are made between the remaining parts of the hood and fenders. Since these parts are assembled based on the floor assembly, it's difficult to ensure precise adjustments according to the floor reference. The front frame, bumper, and headlights of the final assembly are mounted on the floor and fender mounting points. Furthermore, the final assembly is perfectly matched to the welded hood and fenders. Without a unified reference, the clearance across the entire vehicle is difficult to guarantee, and rework and adjustments become challenging.

[0003] Patent document CN218137090U discloses a manual grinding tool for laser brazing weld seams on top covers, including a flexible grinding positioning track and a handheld grinding tool body. The flexible grinding positioning track includes a track, a crossbeam, and a positioning pressure head; the track and crossbeam are matched and connected together; the positioning pressure head is installed at both ends of the two tracks; the handheld grinding tool body includes a handle, an upper top plate, a connecting plate, a lower bottom plate, a slide rail, a slide path, a guide rod, a grinding wheel cover, a pressure spring, and a buckle; the upper top plate and the lower bottom plate are installed at both ends of the connecting plate, the pressure spring and the grinding wheel cover are installed on the guide rod, the slide path is installed on the grinding wheel cover and matches the slide rail, the handle is installed on the upper top plate, and the buckle is installed on the connecting plate. By combining the flexible grinding positioning track with the handheld grinding tool body, the manual grinding force is ensured to be uniform and the grinding is carried out in a straight line; the problem of uneven flatness and damage to the workpiece on both sides during manual grinding is solved.

[0004] Patent document CN211425337U relates to a positioning aid for a laser interferometer, including a base. The base is characterized by having a transition section above it, a rotating device inside the transition section, a support above the rotating device, a reflector hinged above the support, a support column at the lower end of the base, limiting members on both sides of the support column, and rollers below the support column. The structure is simple and efficient.

[0005] Patent document CN115936414A relates to the field of general control or regulation system technology, specifically to a flexible assembly method for microdevices based on assembly process and trajectory self-planning. The method includes the following steps: inputting a three-dimensional model of the device to be assembled; generating microdevice equipment information based on the three-dimensional model of the device to be assembled; processing the microdevice equipment information to generate an assembly process file; performing simulation calculations on the assembly path according to the assembly process file to form an assembly operation control file and a detection process control file; calling a set algorithm to process the assembly operation control file and the detection process control file to generate an assembly control command stream; and sequentially sending the assembly control command stream to the flexible assembly system to execute the assembly operation until the flexible assembly of the microdevice is completed. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the above-mentioned problems existing in the prior art, and to provide a laser tooling auxiliary for adjusting the gap between the laser cover and the fender and its usage method.

[0007] This invention addresses the issue of poor clearance between the vehicle's hood and fender, hood and grille trim, hood and headlight, and headlight and fender, achieving a standard for quality clearance. This reduces the significant rework time and personnel costs associated with final assembly quality issues, resolves the inconsistencies and difficulties in welding adjustments, and addresses the problems of excessively long rework times and damaged parts after welding assembly issues arise.

[0008] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0009] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution:

[0010] A laser tooling fixture for adjusting the gap between the hood and the fender includes a positioning connecting rod, a positioning rotating rod, a telescopic connecting rod, a slide rail assembly, and a laser instrument;

[0011] The positioning rotating rod is mounted on the positioning connecting rod;

[0012] The positioning rotating rod includes three positioning rotating rods, namely the first positioning rotating rod 8, the second positioning rotating rod 21, and the third positioning rotating rod 30;

[0013] The telescopic connecting rod includes three telescopic connecting rods, namely the first telescopic connecting rod 4, the second telescopic connecting rod 18, and the third telescopic connecting rod 26;

[0014] The positioning link rod includes a slide rail moving rod 14; the slide rail moving rod 14 is installed on the floor longitudinal beam;

[0015] The three positioning rods can slide left and right on the slide rail moving rod 14;

[0016] The slide rail assembly includes slide rails and guide rails;

[0017] The laser device includes three laser units, which are respectively installed on three movable slide rails. The guide rails are installed on three telescopic connecting rods. The ball-shaped positioning part at the bottom of the slide rail assembly can be adjusted to any angle. After the three upper laser units are adjusted according to the required standard values, the indicator light beam is calibrated.

[0018] Furthermore, the first telescopic link 4 and the third telescopic link 26 are adjusted to a certain required precision measurement position according to the vehicle body structure and the height of the fender, to ensure that the laser indicator light is projected onto the Y-axis adjustment surface of the fender;

[0019] The second telescopic link 18 is adjusted to a certain precision measurement position according to the vehicle body structure and the height of the fender, to ensure that the laser indicator light is projected to the required position of the hood lock hook;

[0020] Furthermore, the slide rail moving rod 14 is positioned on the second positioning rotating rod 21 of the three positioning rotating rods.

[0021] Furthermore, a laser tooling fixture for adjusting the gap between the shroud and the fender also includes a battery control unit;

[0022] The three laser units are controlled by a battery-powered control unit, which is equipped with a switch and a display screen.

[0023] Furthermore, the three laser units are respectively installed on three slide rail bases, and the slide rail bases are respectively installed on three movable slide rails.

[0024] Furthermore, the positioning link rod is provided with locking bolts and positioning pins at both ends; the positioning link rod is installed on the floor longitudinal beam through positioning pins and locking bolts.

[0025] Furthermore, the positioning pin includes a main positioning pin 9 and a secondary positioning pin 32;

[0026] The locking bolts include a first bolt 10, a second bolt 13, a third bolt 31, and a fourth bolt 33.

[0027] Furthermore, a ball groove is provided at the spherical positioning point, and the ball shaft is installed in the ball groove.

[0028] A method for using a laser tooling fixture to adjust the gap between the laser housing and the fender, characterized in that:

[0029] The laser of the first laser instrument 1 hits the Y-axis surface of the fender, the fender part is hung on the vehicle body, the operator pushes the fender outward in the Y direction to move it to the designated position, and pushes the moving fender to move left and right according to the indicator beam on the laser instrument 1. The actual measurement value on the display screen changes according to the distance. When the actual measurement value changes to the same as the theoretical value or meets the tolerance of the theoretical value, the operator tightens the mounting point of the fender on the vehicle body.

[0030] The laser from the third laser instrument 23 hits the Y-axis surface of the fender, and the fender part is attached to the vehicle body. The operator pushes the fender outward in the Y direction and moves it left and right according to the indicator beam on the laser instrument. The actual measurement value on the display screen changes according to the distance. When the actual measurement value changes to the same as the theoretical value or meets the tolerance of the theoretical value, the operator tightens the mounting point of the fender on the vehicle body.

[0031] The laser of the second laser device 15 is directed to the required position of the hair cover lock hook. After the hair cover is assembled, the hair cover adjuster visually follows the laser line and adjusts the hair cover left and right until the center position of the lock hook on the hair cover coincides with the laser line. The adjustment is completed by locking the hair cover hinge.

[0032] Furthermore, when using the device, first turn on the first laser instrument 1, the second laser instrument 15, and the third laser instrument 23, then install the main positioning pin 9 and the auxiliary positioning pin 32 onto the floor longitudinal beam, and then install the first bolt 10, the second bolt 13, the third bolt 31, the fourth bolt 33, the fifth bolt 7, the sixth bolt 11, the seventh bolt 12, and the eighth bolt 20 onto the floor longitudinal beam.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] This invention reduces the cost of rework time and personnel required for general assembly quality problems, solves the problems of inconsistency and difficulty in welding adjustments, and resolves the problems of excessively long rework time and damage to repaired parts after welding assembly problems occur.

[0035] This invention can help unify the benchmarks of the body-in-white and final assembly parts, making it easier for operators to observe and operate. Attached Figure Description

[0036] The invention will now be further described with reference to the accompanying drawings:

[0037] Figure 1 This is a schematic diagram of a laser tooling fixture structure for adjusting the gap between the laser housing and the fender, as described in this invention.

[0038] In the picture:

[0039] 1. First laser instrument;

[0040] 1. First slide rail;

[0041] 2. First guide rail;

[0042] 4. First telescopic connecting rod;

[0043] 5. First ball axis;

[0044] 6. First battery control unit;

[0045] 7. Fifth bolt;

[0046] 8. First positioning rotating rod;

[0047] 9. Main positioning pin;

[0048] 10. First bolt;

[0049] 11. The sixth bolt;

[0050] 12. The seventh bolt;

[0051] 13. Second bolt;

[0052] 14. Slide rail moving rod;

[0053] 15. Second laser instrument;

[0054] 16. Second guide rail;

[0055] 17. Second slide rail;

[0056] 18. Second telescopic connecting rod;

[0057] 19. Second ball axis;

[0058] 20. Eighth bolt;

[0059] 21. Second positioning rotating rod;

[0060] 22. Second battery control unit;

[0061] 23. The third laser instrument;

[0062] 24. Third slide rail;

[0063] 25. Third guide rail;

[0064] 26. Third telescopic connecting rod;

[0065] 27. Third ball axis;

[0066] 29. Third battery control unit;

[0067] 30. Third positioning rotating rod;

[0068] 31. The third bolt;

[0069] 32. Secondary locating pin;

[0070] 33. The fourth bolt;

[0071] a. First display screen;

[0072] b. First calibration

[0073] c. First power-on;

[0074] e. First power line

[0075] f. Slide rail groove;

[0076] g. Locking bolt A;

[0077] h, Second display screen;

[0078] i. Second calibration

[0079] j. Second power-on;

[0080] k, Third startup;

[0081] 1. Third calibration;

[0082] m, third display screen;

[0083] n. Locking bolt B

[0084] o, the third power line

[0085] p, the second electrical wire;

[0086] q. First latch;

[0087] r, second latch;

[0088] s, third latch;

[0089] t, pivot pin;

[0090] u, groove;

[0091] v. First laser indicator light;

[0092] w, Second laser indicator light;

[0093] x, Third laser indicator light;

[0094] Y, positioning groove;

[0095] Z, Positioning boss. Detailed Implementation

[0096] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this invention. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this invention, and should not be construed as limiting the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention. The embodiments of this invention will be described in detail below with reference to the accompanying drawings.

[0097] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0098] The present invention will now be described in detail with reference to the accompanying drawings:

[0099] To achieve the above objectives, the present invention provides the following technical solution:

[0100] This invention relates to the field of high-precision laser tooling auxiliary fixtures for automobiles that flexibly adjust the gap between the engine cover and the fender. It discloses a high-precision laser tooling auxiliary fixture mechanism for automobiles, including a positioning link rod, a sliding rail moving rod, a telescopic link rod, a sliding rail assembly, a laser instrument, and a battery control unit. The positioning link rod, with positioning pins and locking bolts at both ends (the positioning pins and bolts can be manufactured according to the dimensions of existing vehicles), is installed on the floor longitudinal beam. The battery control unit is equipped with the battery, the laser tracker is powered on, and the left telescopic link rod is adjusted to a certain position according to the vehicle body structure and the height of the fender. For the part requiring precise measurement, ensure that the laser indicator light is projected onto the Y-axis adjustment surface of the fender (the telescopic connecting rod and positioning connecting rod have scales that can be adjusted according to the scales). The slide rail moving rod is installed on the floor longitudinal beam according to the reference point of the corresponding vehicle model based on the floor positioning design. The slide rail moving rod is positioned on the middle positioning connecting rod and can be adjusted to the required standard value according to the scale standard. The upper laser connecting telescopic connecting rod and the ball positioning point at the bottom of the slide rail assembly are adjusted (any angle can be rotated and adjusted). The upper laser instrument can be adjusted according to the required standard value to calibrate the indicator light.

[0101] After installing the battery in the battery control unit, turn on the laser tracker. Adjust the first telescopic link 4 and the third telescopic link 26 to a specific measurement position according to the vehicle body structure and fender height, ensuring that the laser indicator light is projected onto the Y-axis adjustment surface of the fender (the telescopic link and positioning link have scales that can be adjusted according to the scales). Position the slide rail moving rod to the middle positioning link and adjust it to the required standard value according to the scale standard. Adjust the ball-shaped positioning point at the bottom of the upper laser link telescopic link and slide rail assembly (it can be rotated and adjusted at any angle). After adjusting the upper laser instrument according to the required standard value, the indicator light light will be calibrated.

[0102] The second telescopic link 18 is adjusted to a certain precision measurement position according to the vehicle body structure and the height of the fender, to ensure that the laser indicator light is projected to the required position of the hood lock hook;

[0103] The ball shaft is installed in the ball groove at the spherical positioning point.

[0104] The sliding rail moving rod is installed on the floor longitudinal beam according to the corresponding vehicle model reference point based on the floor positioning design. The battery and electronic control unit are installed with the battery, and the laser tracker is turned on. The sliding rail moving rod is positioned on the central positioning connecting rod and can be adjusted to the required standard value according to the scale standard. The upper laser link telescopic connecting rod and the ball-shaped positioning point at the bottom of the sliding rail assembly are adjusted (any angle can be rotated and adjusted). The upper laser instrument can be adjusted according to the required standard value to calibrate the indicator light. The locking hook on the hood is adjusted according to the standard theoretical position light. The three laser instruments above are controlled by the battery electronic control unit and have functions such as power on / off, display (theoretical value and distance value) screen, and calibration reference confirmation. After the vehicle body is calibrated according to the existing dimensions, the laser-emitted light reaches the distance value displayed on the part plane. After the laser instrument position is adjusted three times on the auxiliary fixture, the operator can assemble it onto the floor longitudinal beam. The hood and fenders are adjusted according to the laser instrument data standard plus tolerance range. While watching the fenders and hood push left and right, and watching the display screen to see if the required value is reached, the bolts of the hood and fenders are tightened.

[0105] As a further aspect of the present invention: the laser instrument performs size control, and calibrates the existing vehicle body size offline based on the vehicle body accuracy at this stage, ensuring the principle of consistency between size accuracy and reference.

[0106] See Figure 1 In this embodiment of the invention, a high-precision laser tooling fixture for flexibly adjusting the gap between the hood and the fender of an automobile is installed offline according to the current size of the white body produced. By using the existing body size accuracy, the tooling fixture is calibrated to the required tolerance value and applied to the adjustment station in the workshop. The first positioning rotating rod 8 is installed on the slide rail moving rod 14. The rotating rod pin t adjusts the required angle of the first positioning rotating rod 8 through the slide rail groove f, and then the first locking buckle q is tightened.

[0107] The first battery control unit 6 is installed on the first positioning rotating rod 8. The first telescopic connecting rod 4 is connected to the first ball shaft 5. The first ball shaft 5 is installed in the upper groove u of the first positioning rotating rod 8 (the first ball shaft 5 and the groove u are precisely positioned and the angle can be adjusted arbitrarily). The first slide rail 2 is installed on the first guide rail 3 on the first telescopic connecting rod 4. The internal positioning groove Y of the first laser instrument 1 is installed on the positioning boss Z of the first slide rail 2. The first power wire e connects the first laser instrument 1 and the first battery control unit 6. The first pair of laser instruments 1 is turned on for the first time. The first positioning rotating rod 8 is moved left and right according to the required data. Then the first lock q is tightened. The first ball shaft 5 is rotated to the required position and angle according to the required data. The first slide rail 2 is then finely adjusted in size and position according to the requirements to form the final required data position. The data is then calibrated for the first time.

[0108] The second positioning rotating rod 21 is installed on the slide rail moving rod 14. The rotating rod pin t adjusts the required angle of the second positioning rotating rod 21 through the slide rail groove f and then tightens the second locking buckle r. The second battery control unit 22 is installed on the second positioning rotating rod 21. The second telescopic connecting rod 18 is connected to the second ball shaft 19. The second ball shaft 19 is installed in the upper groove u of the second positioning rotating rod 21 (the ball shaft 19 and the groove u are precisely positioned and the angle can be adjusted arbitrarily). The second slide rail 17 is installed on the second guide rail 1 on the second telescopic connecting rod 18. 6. The internal positioning groove Y of the second laser instrument 15 is installed on the positioning boss Z of the second slide rail 17. The second laser instrument 15 is connected to the second battery control group 22 by the second power wire p. Then, the second laser instrument 15 is powered on for the second time j. According to the required data, the second positioning rod 21 is moved left and right. Then, the second lock r is tightened. The second ball shaft 19 is rotated to the required position and angle according to the required position. The second slide rail 17 is then finely adjusted in size and position according to the requirements to form the final required data position. The data is then calibrated for the second time i.

[0109] The third positioning rotating rod 30 is installed on the slide rail moving rod 14. The rotating rod pin t adjusts the required angle of the third positioning rotating rod 30 through the slide rail groove f, and then the third locking buckle s is tightened. The third battery control unit 29 is installed on the third positioning rotating rod 30. The third telescopic connecting rod 26 is connected to the third ball shaft 27. The third ball shaft 27 is installed in the upper groove u of the third positioning rotating rod 30 (the third ball shaft 27 and the groove u are precisely positioned and the angle can be adjusted arbitrarily). The third slide rail 24 is installed on the third guide rail on the third telescopic connecting rod 26. On 25, the internal positioning groove Y of the third laser device 23 is installed onto the positioning boss Z of the third slide rail 24. The third laser device 23 is connected to the third battery control group 29 by a third power cable o. Then, the third laser device 23 is powered on k. According to the required data, the third positioning rod 30 is moved left and right. Then, the third lock s is tightened. The third ball shaft 27 is rotated to the required position and angle according to the required position. The third slide rail 24 is finely adjusted in size and position according to the requirements to form the final required data position. The data is then calibrated l.

[0110] exist Figure 1 In the middle: the first laser instrument 1 has the following components: first power on / off c, first calibration b, first display screen a (displaying theoretical and measured values), and first laser indicator v;

[0111] exist Figure 1 In the middle: Second laser instrument 15; Second power on / off j, Second calibration i, Second display screen h (displaying theoretical and measured values), Second laser indicator w;

[0112] exist Figure 1 Middle: Third laser instrument 23 Top: Third power on / off k, Third calibration l, Third display screen m (displays theoretical and measured values), Third laser indicator x;

[0113] exist Figure 1 In the middle: there are multiple slide rail grooves f that are interconnected; ensuring the angle adjustment of the rotating rod pin t;

[0114] exist Figure 1 In the middle: the first battery control group 6, the second battery control group 22, the third battery control group 29, and the battery is installed inside the control resistor;

[0115] exist Figure 1 In the middle: the slide rail moving rod 14 is assembled from three small slide rail moving rods;

[0116] exist Figure 1 In the middle: the first ball shaft 5 (which automatically locks after rotation) can be adjusted at any angle within the groove u to ensure that the signal emitted by the laser can be recognized at the designated position;

[0117] exist Figure 1 In the middle: the first guide rail 3, the second guide rail 16, and the third guide rail 25 are engraved with scale lines, the slide rail moving rod 14 is engraved with scale lines, and the slide rail and positioning rotating rod can be adjusted in size and position according to the scale.

[0118] This invention provides a method for using a laser tooling fixture to adjust the gap between the laser housing and the fender, specifically including:

[0119] After the vehicle body is calibrated according to its existing dimensions, the laser beam reaches the distance value displayed on the part's plane. After the laser instrument is adjusted three times on the auxiliary fixture, the operator assembles it onto the floor longitudinal beam. The hood and fenders are adjusted according to the laser instrument's data standards plus tolerance range. The fenders and hood are visually inspected and pushed left and right until the required value is reached on the display screen. The bolts of the hood and fenders are then tightened.

[0120] When using this device, first turn on the first laser instrument 1, the second laser instrument 15, and the third laser instrument 23. Install the main positioning pin 9 and the auxiliary positioning pin 32 onto the floor longitudinal beam. Install the first bolt 10, the second bolt 13, the third bolt 31, the fourth bolt 33, the fifth bolt 7, the sixth bolt 11, the seventh bolt 12, and the eighth bolt 20 onto the floor longitudinal beam. The laser from the first laser instrument 1 on the left side of the measuring mechanism is then projected onto the Y-axis surface of the fender. After the fender part is attached to the vehicle body, the operator pushes the fender outward in the Y direction to the designated position. The operator moves the fender left and right according to the indicator beam on the laser instrument 1. The measured value on the display screen changes according to the distance. When the measured value changes to the same as the theoretical value or meets the tolerance above or below the theoretical value (for example, tolerance ±0.5mm), the operator can then tighten the mounting point of the fender on the vehicle body.

[0121] The laser beam from the third laser instrument 23 on the right side of the measuring mechanism is then directed onto the Y-axis surface of the fender. After the fender part is attached to the vehicle body, the operator pushes the fender outward in the Y direction. The operator moves the fender left and right according to the indicator beam on the laser instrument. The measured value on the display screen changes according to the distance. When the measured value changes to the same as the theoretical value or meets the tolerance of the theoretical value (for example, tolerance ±0.5mm), the operator can tighten the mounting point of the fender on the vehicle body.

[0122] The laser of the second laser instrument 15 on the intermediate measuring mechanism is directed to the required position of the hair cover lock hook. After the hair cover adjuster has assembled the hair cover, he looks at the laser line and adjusts the hair cover left and right until the center position of the lock hook on the hair cover coincides with the laser line. The adjustment is completed by locking the hair cover hinge.

[0123] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention. The equipment and tooling can assist in the standardization of the body-in-white and final assembly parts, facilitating operator observation and operation, solving the problem of poor gaps between the hood and fenders, the hood and grille trim, the hood and headlights, and the headlights and fenders, achieving standard quality gaps, reducing the large amount of rework time and personnel costs associated with final assembly quality problems, solving the problems of inconsistencies and difficulties in welding adjustments, and resolving the problems of excessively long rework time and damage to repaired parts after welding and final assembly problems occur.

[0124] This invention uses laser to calculate data more accurately and with higher precision; reduces manpower adjustment time and facilitates operation and adjustment; achieves unified benchmarks and reduces gap problems between assembly parts and the vehicle body; and solves the problems of excessive rework time and damage to rework parts after welding and assembly problems occur.

[0125] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in the present invention, and within the spirit and principles of the present invention, should be included within the scope of protection of the present invention. Furthermore, all content not described in detail in this specification is prior art known to those skilled in the art.

Claims

1. A laser tooling fixture for adjusting the gap between the laser housing and the fender, characterized in that, Includes positioning link rod, positioning rotating rod, telescopic link rod, slide rail assembly, and laser device; The positioning rotating rod is mounted on the positioning connecting rod; The positioning rotating rod includes three positioning rotating rods, namely the first positioning rotating rod (8), the second positioning rotating rod (21), and the third positioning rotating rod (30); The telescopic link includes three telescopic link rods, namely the first telescopic link rod (4), the second telescopic link rod (18), and the third telescopic link rod (26); The three telescopic connecting rods are connected to the ball shafts, and the ball shafts are installed in the upper grooves of the three positioning rotating rods respectively; The positioning link rod includes a slide rail moving rod (14); The three positioning rods can slide left and right on the slide rail moving rod (14); The slide rail assembly includes slide rails and guide rails; The laser device includes three laser units, which are respectively installed on three slide rails. The slide rails are installed on guide rails, which are installed on three telescopic connecting rods. After the three upper laser units are adjusted according to the required standard values, the indicator light beams are calibrated.

2. The laser tooling fixture for adjusting the gap between the laser housing and the fender according to claim 1, characterized in that: The first telescopic link (4) and the third telescopic link (26) are adjusted to a certain required precision measurement position according to the vehicle body structure and the height of the fender, so as to ensure that the laser indicator light is projected onto the Y-direction adjustment surface of the fender; The second telescopic link rod (18) is adjusted to a certain required precision measurement position according to the vehicle body structure and the height of the fender, so as to ensure that the laser indicator light is projected to the required position of the hood lock hook.

3. The laser tooling fixture for adjusting the gap between the laser housing and the fender according to claim 1, characterized in that: The slide rail moving rod (14) is positioned on the second positioning rotating rod (21) of the three positioning rotating rods.

4. The laser tooling fixture for adjusting the gap between the laser housing and the fender according to claim 1, characterized in that: It also includes battery control units; The three laser units are controlled by a battery-powered control unit, which is equipped with a switch and a display screen.

5. A laser tooling fixture for adjusting the gap between the laser housing and the fender according to claim 1, characterized in that: The three laser units are installed on three slide rail bases, and the slide rail bases are installed on three movable slide rails.

6. The laser tooling fixture for adjusting the gap between the laser housing and the fender according to claim 1, characterized in that: The positioning link rod is equipped with locking bolts and positioning pins at both ends; the positioning link rod is installed on the floor longitudinal beam through positioning pins and locking bolts.

7. A laser tooling fixture for adjusting the gap between the laser housing and the fender according to claim 6, characterized in that: The positioning pins include a main positioning pin (9) and a secondary positioning pin (32); The locking bolts include a first bolt (10), a second bolt (13), a third bolt (31), and a fourth bolt (33).

8. The method of using a laser tooling fixture for adjusting the gap between the laser housing and the fender according to claim 7, characterized in that: The laser of the first laser instrument (1) hits the Y-direction surface of the fender, the fender part is hung on the car body, the operator pushes the fender outward in the Y direction to move it to the designated position, and pushes the moving fender to move left and right according to the indicator beam on the laser instrument. The actual value on the display screen changes according to the distance. When the actual value changes to the same as the theoretical value or meets the tolerance of the theoretical value, the operator tightens the mounting point of the fender on the car body. The laser of the third laser instrument (23) hits the Y-direction surface of the fender, the fender parts are hung on the body of the car, the operator pushes the fender outward in the Y direction to move it, and pushes the moving fender to move left and right according to the indicated beam on the laser instrument. The actual value on the display screen changes according to the distance. When the actual value changes to the same as the theoretical value or meets the tolerance of the theoretical value, the operator tightens the mounting point of the fender on the body. The laser of the second laser instrument (15) is directed to the required position of the hair cover lock hook. After the hair cover adjuster has assembled the hair cover, he looks at the laser line and adjusts the hair cover left and right so that the center position of the lock hook on the hair cover coincides with the laser line. The adjustment is completed by locking the hair cover hinge.

9. The method of using a laser tooling fixture for adjusting the gap between the laser housing and the fender according to claim 8, characterized in that: When using the device, first turn on the first laser (1), the second laser (15), and the third laser (23), install the main positioning pin (9) and the auxiliary positioning pin (32) onto the floor longitudinal beam, and install the first bolt (10), the second bolt (13), the third bolt (31), the fourth bolt (33), the fifth bolt (7), the sixth bolt (11), the seventh bolt (12), and the eighth bolt (20) onto the floor longitudinal beam.

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